CN201186511Y - Phase change heat transfer type solar energy cell assembly laminator heating device - Google Patents

Abstract

The utility model relates to a laminating machine heating device of a phase transition heat transfer type solar cell component, which comprises an electric heater and a phase transition working fluid cavity which is provided with phase transition working fluid in a sealing mode, wherein the electric heater is fixedly arranged in the phase transition working fluid cavity, the laminating machine heating device of a phase transition heat transfer type solar cell component with the structure of the utility model is adopted, the heating device which is composed of the phase transition working fluid cavity which is provided with the phase transition working fluid in the sealing mode and a gas-liquid communicating channel is a sealed heat pipe practically, heat is transferred through gas-liquid phase transition of working fluid, thereby realizing the liquid-gas convection to transfer the heat, the heat resistance is small, the heat transfer is rapid, the heat evenness of the working surface of the heating device is improved, a laminating workbench is used as the working surface of the heating device, the heat pipe is used as both the heating device but also the heat transfer device, thereby the laminating workbench obtains extremely high heat evenness, thereby, the crosslinking reaction of glue film is even, and the solar cell component with excellent quality is obtained.

Description

Phase change heat transfer solar cell module laminator heating device

technical field

The utility model relates to a heating device for a solar cell component laminating machine, in particular to a heating device for a phase change heat transfer type solar cell component laminating machine.

Background technique

Since the adhesive film of the solar cell module is mostly made of EVA, TPU, PVB, the more uniform the heating of the lamination table during the pressing process, the more uniform the crosslinking reaction of the adhesive film, the better the quality of the solar cell module and the longer the life. There are currently two types of heating devices for laminators. One is composed of multiple electric heaters fixed on the lower surface of the workbench. With this structure, the heater and the workbench adopt a solid-solid contact heat transfer method. , Large thermal resistance during heat transfer, low heat transfer efficiency, and uneven heat transfer, resulting in uneven heating of the workbench, low life of the workbench and elastic laminated parts, and poor quality of solar cell modules. The other is composed of heating tubes equipped with heat-conducting oil or other media coiled and arranged in the workbench. The heating device with this structure has a complex structure and requires high sealing of the pipeline, and oil leakage is easy to cause environmental pollution. In order to solve the above problems, a utility model patent with the patent number ZL200420117155.5, the name "Phase Change Heat Transfer Solar Cell Module Laminator" and the announcement number CN2757338Y discloses a heating device for a laminator. The heater is fixedly installed on the lower surface of the workbench, and a heat pipe is installed in the body of the lamination workbench. When working, the electric heater first heats the workbench, and when the workbench is heated, the heat is transferred to the heat pipe, and the heat is transferred by the heat pipe, thereby improving the lamination work. The thermal uniformity of the table, the heating device of the laminating machine with this structure, the electric heater is the actual heating element, the heat pipe only plays the role of heat transfer, and the lamination table and the electric heater are still solid-solid The contact heat transfer method has large thermal resistance, low heat transfer efficiency, and thermal uniformity has not been significantly improved.

Contents of the invention

The purpose of this utility model is to provide a phase-change heat transfer type solar energy with high heating efficiency, simple structure, and uniform heating of the lamination workbench in view of the deficiency that the heating device of the laminator in the prior art makes the lamination workbench heated unevenly. Battery module laminator heating device.

The purpose of this utility model is achieved through the following technical solutions:

A heating device for a phase-change heat transfer type solar cell module laminator, comprising an electric heater, a phase-change working fluid cavity sealed with a phase-change working fluid, and the electric heater is sealed and fixedly arranged on the phase-change working fluid In the cavity, the phase change working fluid partly fills the phase change working fluid cavity;

The heating element cavity is fixed outside the electric heater, and the electric heater is sealed and fixedly connected with the phase change working fluid cavity through the heating element cavity. A sealed cavity is formed between the inner surfaces of the variable working substance cavity;

There are multiple phase-change working medium cavities, and the phase-change working medium cavities are connected to each other through gas and liquid communication channels to form interconnected sealed cavities, and an electric heater is fixedly arranged in each phase-change working medium cavity;

The first and last ends of the phase-change working medium cavity are respectively connected with the gas and liquid communication channels;

The middle part of the phase-change working medium cavity communicates with the gas and liquid communication channels;

The phase-change working medium cavity is a cavity opened on the laminated workbench body;

The phase-change working medium cavity is one, and a plurality of reinforcing ribs are arranged between the bottom wall and the top wall of the phase-change working medium cavity to divide the phase-change working medium cavity into several sealed cavities connected by gas and liquid ;

The phase-change working medium cavity is one of trapezoidal tubes, rectangular tubes, circular tubes, semicircular tubes, and square tubes;

The electric heater is fully or partially submerged in the phase change working fluid;

The cavity of the heating element is fully or partially immersed in the phase change working fluid.

Adopting the heating device of the phase-change heat-transfer type solar cell module laminator of the utility model, the heating device composed of the cavity sealed with the phase-change working medium and the gas-liquid communication channel is actually a closed heat pipe, which relies on the gas flow of the phase-change working medium. , Liquid phase change to transfer heat, so as to realize liquid-vapor convection heat transfer, small thermal resistance, rapid heat transfer, and improve the thermal uniformity of the working surface of the heating device. The laminated worktable is used as the working surface of the heating device, and the heat pipe is both The device is also a heat transfer device, therefore, the lamination workbench can obtain extremely high thermal uniformity, so that the cross-linking reaction of the adhesive film can be uniform, and high-quality solar cell modules can be obtained.

Description of drawings

Fig. 1A is a structural schematic diagram of the first embodiment of the heating device of the phase change heat transfer type solar cell module laminator of the utility model;

Fig. 1B is a schematic cross-sectional view of A-A of Fig. 1A;

Fig. 2 is a structural schematic diagram of the second embodiment of the heating device of the phase change heat transfer type solar cell module laminator of the present invention;

Fig. 3A is a structural schematic diagram of the third embodiment of the heating device of the phase change heat transfer type solar cell module laminator of the utility model;

Fig. 3B is a schematic cross-sectional view of B-B of Fig. 3A;

Fig. 4A is a structural schematic diagram of a fourth embodiment of a heating device of a phase change heat transfer type solar cell module laminator of the present invention;

FIG. 4B is a schematic cross-sectional view along line B-B of FIG. 4A .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 shows the first embodiment of the utility model laminator heating device. As shown in Figures 1A and 1B, through holes are provided on the side walls of the phase-change working medium chamber 2, and a plurality of phase-change working medium chambers 2 are arranged side by side, and are fixedly connected to each other through the gas and liquid communication channels 5 and 6. A sealed cavity, the lamination workbench 1 is used as the common top wall of each phase-change working medium cavity 2, and a heater 3 is fixedly arranged in each phase-change working medium cavity 2, and one end of the heater 3 or The two ends are fixedly connected with the cavity wall of the phase-change working medium cavity 2, and the phase-change working medium cavity 2 is sealed after injecting the phase-change working medium 4 to obtain a heating device.

Fig. 2 has shown the second embodiment of the heating device of the utility model structure. As shown in Figure 2, take four flat plates and weld them into one body through three reinforcing ribs 8, use the workbench 1 as the top wall, and take another four flat plates as the side walls, and make a four-chamber chamber by welding. The phase-change working medium chamber 2, through the through hole provided on the side wall of the phase-change working medium chamber 2, an electric heater 3 is fixedly installed in each chamber, and the phase-change working medium chamber is sealed after injecting the phase-change working medium 4 2. Make a heating device. The function of the reinforcing rib 8 is to overcome the downward expansion force of the bottom wall of the phase-change working medium cavity 2. In order to ensure the gas and liquid communication between the chambers, when the reinforcing rib 8 completely separates the adjacent chambers, each When the chambers are not connected to each other, the upper through hole should be set on the rib 8 as the gas communication channel 5, and the lower through hole should be set as the liquid communication channel 6, or a through hole should be set as both the gas communication channel and the liquid communication channel.

Fig. 3 shows the third embodiment of the heating device of the utility model structure. On the body of the workbench 1, a plurality of cavities 9 are arranged side by side as the phase change working medium cavity 2, and the cavities 9 are connected into one body through the gas and liquid communication channels 5, 6, and are fixed in each cavity 9 A heater 3 is injected into the phase change working medium 4 and sealed each cavity 9 to make a heating device.

Fig. 4 has shown the 4th kind of embodiment of the heating device of the utility model structure. As shown in Figures 4A and 4B, the trapezoidal tube is selected as the phase-change working medium cavity 2, and the gas and liquid communication channels 5 and 6 are respectively connected to the head end and the tail end of the phase-change working medium cavity 2 to make each phase-change working medium The cavities 2 are in gas and liquid communication with each other, and the lamination workbench 1 is used as the large bottom surface of the trapezoidal tube and the top wall of the gas and liquid communication channels 5 and 6, and a heater is fixedly installed in each phase change working fluid cavity 2. A device 3 is injected into the phase-change working medium 4 and then the cavity 2 of the phase-change working medium is sealed to obtain a heating device.

As shown in Figures 2, 3, and 4, in order to avoid direct contact between the heater 3 and the phase-change working medium 4, protect the heater, reduce heater failures, and facilitate replacement of the heater 3 and its components, the phase-change working medium A metal tube is fixed inside the cavity 2 as the heating element cavity 7, and the two ends of the metal tube are respectively fixedly connected with the phase-change working medium cavity 2, so that the inner surface of the phase-change working medium cavity 2 and the metal tube are located A sealed cavity with a phase-change working medium 4 is formed between the outer surfaces of the phase-change working medium cavity, the electric heater 3 is fixedly arranged in the metal tube, and the space between the electric heater 3 and the heating element cavity 7 can be radiation, conduction, Convection three heat transfer methods.

The phase-change working fluid 4 can be partly or fully immersed in the electric heater 3 or the heating element cavity 7; circular tubes, square tubes, rectangular tubes, semicircular tubes, and trapezoidal tubes can be used as the phase-change working medium cavity; The material of the variable working medium cavity 2 can be metal, glass or other heat-resistant materials with good thermal conductivity; one end of the electric heater 3 can be sealed and fixedly connected with the phase change working medium cavity 4, and the other end It is sealed in the phase-change working medium cavity 4, and can also be sealed and fixedly connected with the phase-change working medium cavity 4 through the two ends of the electric heater 3, and the heating part of the electric heater 3 is sealed in the phase-change working medium cavity 4; when the electric heater 3 is fixedly arranged in the heating element cavity 7, the same heating element cavity 7 can be sealed and fixedly connected with the phase change working medium cavity 4 through one end thereof, and the other end is a closed end, sealed in the phase change working medium cavity 4. In the variable working medium cavity 4, it can also be fixed and sealed with the phase change working medium cavity 4 through its two ends; after the electric heater is fixedly installed in the heating element cavity 7, its open end is closed to protect the electric heating. The device 3 reduces the heat loss of the electric heater 3; water, alcohol and other liquids or mixed liquids that can produce phase change can be selected as the phase change working medium 4.

This heating device is actually a heat pipe, which transfers heat by the gas and liquid phase changes of the phase-change working medium 4. Since the phase-change working medium cavities 2 are connected into one body through the gas communication channel 5 and the liquid communication channel 6, it is beneficial to Heat transfer, increase the heat transfer speed, make the temperature in the heating device more uniform, and at the same time, the lamination workbench 1 is used as the top wall of the heat pipe, which reduces the heat transfer link and eliminates the thermal resistance between the lamination workbench 1 and the heating device. Allowing for faster heat transfer, the thermal uniformity of the lamination table is greatly improved.

Claims (10)

1. The heating device of the phase-change heat-transfer type solar cell module laminator, including an electric heater (3), and a phase-change working medium cavity (2) sealed with a phase-change working medium (4), characterized in that: The electric heater (3) is sealed and fixedly arranged in the phase-change working fluid cavity (2), and the phase-change working fluid (4) partially fills the phase-change working fluid cavity (2). 2. The heating device of the phase-change heat transfer type solar cell module laminator according to claim 1, characterized in that: the electric heater (3) is fixed outside the heating element cavity (7), and the electric heater (3) The heating element cavity (7) is sealed and fixedly connected with the phase change working medium cavity (2), and the outer surface of the heating element cavity (7) located in the phase change working medium cavity (2) is in contact with the phase change working medium A sealed cavity is formed between the inner surfaces of the plasma cavity. 3. According to claim 1 or 2, the heating device of the phase-change heat-transfer solar cell module laminator is characterized in that: there are multiple phase-change working medium chambers (2), and each phase-change working medium chamber (2) are connected by gas and liquid communication channels (5, 6) to form mutually connected sealed cavities, and an electric heater (3) is fixedly arranged in each phase-change working fluid cavity (2). 4. The heating device of the phase-change heat-transfer solar cell module laminator according to claim 3, characterized in that: the first and last ends of the phase-change working fluid cavity (2) are respectively connected to gas and liquid The channels (5, 6) communicate with each other. 5. The heating device of the phase-change heat transfer type solar cell module laminator according to claim 3, characterized in that: the middle part of the phase-change working fluid cavity (2) communicates with the gas and liquid passages (5, 6) interconnected. 6. The heating device of the phase change heat transfer type solar cell module laminator according to claim 1, characterized in that: the phase change working medium cavity (2) is a hole opened on the body of the lamination workbench (1) cavity (9). 7. The heating device of the phase change heat transfer type solar cell module laminator according to claim 1, characterized in that: there is one phase change working fluid chamber (2), and in the phase change working fluid chamber ( 2) A plurality of reinforcing ribs (8) are arranged between the bottom wall and the top wall to divide the phase-change working medium chamber (2) into several sealed chambers connected by gas and liquid. 8. The heating device of the phase-change heat-transfer solar cell module laminator according to claim 1, characterized in that: the phase-change working medium cavity (2) is a trapezoidal tube, a rectangular tube, a circular tube, a semicircle One of shaped tubes and square tubes. 9. The heating device for a phase change heat transfer type solar cell module laminator according to claim 1, characterized in that: the electric heater (3) is fully or partially submerged in the phase change working medium (4). 10. The heating device for a phase change heat transfer type solar cell module laminator according to claim 2, characterized in that: the heating element cavity (7) is completely or partially submerged in the phase change working fluid (4).

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