Induction heating device for low-temperature curing

Abstract

The utility model provides an induction heating device for low-temperature curing, which comprises a base, a furnace body arranged at the top of the base, an induction heating assembly arranged in an inner cavity of the furnace body, a temperature measuring assembly for measuring the real-time temperature of a battery piece, and a control assembly, the induction heating assembly comprises a supporting frame, an induction coil wound on the outer side of the supporting frame and a heat preservation layer arranged on the outer side of the induction coil, a heating channel used for heating a battery piece is formed in the inner side of the supporting frame, and the control assembly is connected with the induction heating assembly and the temperature measuring assembly. And the induction heating assembly is controlled according to the temperature measured by the temperature measuring assembly. According to the induction heating device for low-temperature curing, a battery piece can be directly heated through an induction heating technology, and heat energy loss in a traditional heating mode is avoided, so that the energy utilization efficiency is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of solar cell production, and in particular to an induction heating device for low-temperature curing. Background Technology

[0002] In the production of high-efficiency heterojunction solar cells, heterojunction cells have attracted much attention due to their unique structural design. These cells use silicon-based thin films to form pn junctions. The advantage of this structure lies in its relatively low maximum processing temperature, around 200°C. This temperature setting is primarily to ensure the successful formation of the amorphous silicon thin film, thereby guaranteeing the cell's performance and efficiency. However, precisely because of this relatively low maximum processing temperature, the low-temperature slurry curing process becomes particularly critical.

[0003] Traditional curing heating methods have shown significant limitations in this process. First, high energy consumption is a major concern. To ensure a smooth curing process, traditional methods often require maintaining the ambient temperature at a relatively high level, typically exceeding the actual required curing temperature. This not only increases energy consumption but may also lead to unnecessary energy waste.

[0004] Secondly, low heating efficiency is also a problem. In traditional curing processes, heat conduction and radiation are relatively inefficient, meaning it takes longer to reach the required curing temperature, thus reducing production efficiency. Furthermore, this inefficient heating method can lead to uneven heat distribution, affecting the uniform curing of the solar cells and consequently impacting the overall performance of the battery.

[0005] Therefore, it is necessary to design an induction heating device for low-temperature curing to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an induction heating device for low-temperature curing that effectively increases the heating rate, reduces energy consumption, and achieves precise and timely control of the curing temperature.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an induction heating device for low-temperature curing, comprising a base, a furnace body disposed on the top of the base, an induction heating component disposed in the inner cavity of the furnace body, a temperature measuring component for measuring the real-time temperature of the battery cells, and a control component. The induction heating component includes a support frame, an induction coil wound around the outside of the support frame, and a heat insulation layer disposed outside the induction coil. A heating channel for heating the battery cells is formed on the inner side of the support frame. The control component is connected to the induction heating component and the temperature measuring component to control the induction heating component according to the temperature measured by the temperature measuring component.

[0008] As a further improvement of this utility model, the temperature measuring component is an infrared temperature sensor.

[0009] As a further improvement of this utility model, the temperature measuring component is located at the top of the inner side of the heating channel.

[0010] As a further improvement of this utility model, a purging component for purging the temperature measuring component is also provided.

[0011] As a further improvement of this utility model, the heating channel has a rectangular cross-section.

[0012] As a further improvement of this utility model, the insulation layer is provided with uniformly distributed air holes, which are used to discharge the gas generated in the heating channel.

[0013] As a further improvement of this utility model, the insulation layer includes a cured carbon felt layer.

[0014] As a further improvement of this utility model, there are two induction heating components, which are arranged side by side in the inner cavity of the furnace body.

[0015] As a further improvement of the present invention, it also includes an exhaust assembly that communicates with the inner cavity of the furnace body, and the exhaust assembly is located above the furnace body.

[0016] As can be seen from the above technical solution, the induction heating device for low-temperature curing of this utility model can directly heat the battery cells through induction heating technology, avoiding heat loss in traditional heating methods, thereby improving energy utilization efficiency and reducing energy consumption. The temperature measuring component in the device can monitor the temperature of the battery cells in real time, and the control component can quickly adjust the output of the induction heating component according to the measured temperature, ensuring that the battery cells quickly reach the required curing temperature under low-temperature conditions, shortening the curing cycle. Through the connection of the control component, the induction heating component, and the temperature measuring component, precise control of the heating process is achieved, ensuring the temperature uniformity and consistency of the battery cell curing process, and improving product quality. This device integrates induction heating, temperature measurement, and control functions, simplifies the operation process, reduces the possibility of human error, and makes the curing process more stable and reliable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an induction heating device for low-temperature curing according to an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Please refer to Figure 1 As shown, this utility model provides an induction heating device for low-temperature curing, which cures battery cells at low temperatures through heating. The induction heating device includes a base 1, a furnace body 2, an induction heating component 3, a furnace body 2 disposed on top of the base 1, an induction heating component 3 disposed in the inner cavity of the furnace body 2, a temperature measuring component 4, an exhaust component 5, a purging component 6, and a control component.

[0020] The furnace body 2 has an inner cavity for accommodating the aforementioned components. An induction heating assembly 3 is disposed within the inner cavity of the furnace body 2. The induction heating assembly 3 includes a support frame 31, an induction coil 32 wound around the outside of the support frame 31, and a heat insulation layer 33 disposed outside the induction coil 32. A heating channel for heating the battery cells is formed on the inner side of the support frame 31, and the heating channel has a rectangular cross-section. Uniformly distributed pores are formed on the heat insulation layer 33 to discharge gas generated within the heating channel. The heat insulation layer 33 includes a cured carbon felt layer. In this embodiment, the induction heating assembly 3 is configured as one and located at the lower part of the furnace body 2. In other embodiments, two induction heating assemblies can be configured, arranged side-by-side vertically within the inner cavity of the furnace body. This arrangement effectively utilizes the space within the furnace body, increases the number of battery cells processed at one time, and improves curing efficiency. Similarly, multiple induction heating assemblies can be configured, and the multiple induction heating assemblies can be adaptively placed according to the shape of the furnace body.

[0021] This invention uses induction coil 32 for direct heating, eliminating the need for heat conduction through the external environment, which effectively improves heating efficiency and production speed. At the same time, it uses magnetic induction heating, eliminating the need for energy replenishment through environmental heat conduction or radiation. The ambient temperature of the induction heating device can be significantly lower than that of traditional curing equipment, thereby effectively reducing the energy carried away by equipment heat dissipation and exhaust, resulting in high efficiency and energy saving.

[0022] Temperature measuring component 4 is used to measure the real-time temperature of the battery cells. In this embodiment, temperature measuring component 4 is preferably an infrared temperature sensor. Temperature measuring component 4 is located at the top of the inner side of the heating channel. A purging component 6 is disposed on one side of temperature measuring component 4 and is used to purge temperature measuring component 4 to prevent it from being obstructed by debris.

[0023] The control component is connected to the induction heating component 3 and the temperature measuring component 4 to control the induction heating component 3 based on the temperature measured by the temperature measuring component 4. In this embodiment, the temperature of the battery cell is directly measured by an infrared thermometer and transmitted to the control component in real time. The control component receives the temperature information and, based on the temperature information, adjusts the heating power of the corresponding induction coil in real time through the control software and control circuit within the control component, thereby achieving accurate and timely temperature control.

[0024] The exhaust assembly 6 is located above the furnace body 2 and is connected to the inner cavity of the furnace body 2, which can effectively exhaust the distorted mist-like substances generated inside the furnace body 2.

[0025] The terms used herein, such as "upper" and "lower," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims.

[0026] Furthermore, the above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. An induction heating device for low-temperature curing, characterized in that: The device includes a base, a furnace body disposed on top of the base, an induction heating component disposed in the inner cavity of the furnace body, a temperature measuring component for measuring the real-time temperature of the battery cells, and a control component. The induction heating component includes a support frame, an induction coil wound around the outside of the support frame, and a heat insulation layer disposed outside the induction coil. A heating channel for heating the battery cells is formed on the inner side of the support frame. The control component is connected to the induction heating component and the temperature measuring component to control the induction heating component according to the temperature measured by the temperature measuring component.

2. The induction heating device for low-temperature curing as described in claim 1, characterized in that: The temperature measuring component is an infrared temperature sensor.

3. The induction heating device for low-temperature curing as described in claim 2, characterized in that: The temperature measuring component is located at the top of the inner side of the heating channel.

4. The induction heating device for low-temperature curing as described in claim 1, characterized in that: It also includes a purging assembly for purging the temperature measuring component.

5. The induction heating device for low-temperature curing as described in claim 1, characterized in that: The heating channel has a rectangular cross-section.

6. The induction heating device for low-temperature curing as described in claim 1, characterized in that: The insulation layer has evenly distributed pores, which are used to discharge the gas generated in the heating channel.

7. The induction heating device for low-temperature curing as described in claim 1, characterized in that: The insulation layer includes a cured carbon felt layer.

8. The induction heating device for low-temperature curing as described in claim 1, characterized in that: There are two induction heating components, which are arranged side by side in the inner cavity of the furnace body.

9. The induction heating device for low-temperature curing as described in claim 1, characterized in that: It also includes an exhaust assembly that communicates with the inner cavity of the furnace body, and the exhaust assembly is located above the furnace body.

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