Electromagnetic heating plate for photovoltaic module laminating machine and photovoltaic module laminating machine
By using electromagnetic heating plates in the photovoltaic module laminate, electromagnetic heating is achieved using electromagnetic coils wound with serpentine paths, the problem of high energy consumption of traditional electric heating is solved and an efficient and environmentally friendly heating effect is achieved.
Patent Information
- Application Number
- CN202421171067.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The electrical heating method of traditional photovoltaic module laminators has problems of high energy consumption and environmental pollution, especially the electrical heating pipes and electric heating plates require a large amount of electricity, which increases the lamination cost.
An electromagnetic heating plate is adopted, including a heating plate body and an electromagnetic heating module arranged on the lower surface of the heating plate body. The electromagnetic heating module is composed of first and second electromagnetic coils wound along a serpentine path, and heats are achieved by excitating an alternating magnetic field through an alternating current.
Compared with traditional electric heating, electromagnetic heating greatly reduces electricity consumption, reduces environmental pollution, and improves heating efficiency while ensuring the heating effect.
Smart Images
Figure CN222839842U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic module production, and specifically to an electromagnetic heating plate for a photovoltaic module laminating machine. Background Art
[0002] As the installed capacity of photovoltaic power generation increases day by day, as a key equipment in the production process of photovoltaic modules, the specifications of photovoltaic module laminators are constantly increasing, and the energy consumption problem that comes with it has also become a key issue of concern in the industry. Traditional photovoltaic module laminators generally use oil heating or electric heating. Among them, oil heating requires regular replacement of thermal oil, which causes great damage to the environment. Electric heating methods such as electric heating tube heating and electric heating plate heating consume a lot of electricity, which increases the lamination cost of photovoltaic modules. Utility Model Content
[0003] In order to solve the above technical problems existing in the existing bearing platform, the present application provides a bearing platform, which adopts the following technical solutions:
[0004] An electromagnetic heating plate for a photovoltaic module laminator comprises a heating plate body and at least one electromagnetic heating module arranged on the lower surface of the heating plate body;
[0005] The electromagnetic heating module comprises at least one first electromagnetic coil wound along a first serpentine path and a second electromagnetic coil wound along a second serpentine path, wherein the second electromagnetic coil surrounds the outside of the first electromagnetic coil.
[0006] The electromagnetic heating plate for photovoltaic module laminator provided in the present application has an electromagnetic heating module composed of a first electromagnetic coil and a second electromagnetic coil disposed on the lower surface of the heating plate body. After an alternating current is passed through the electromagnetic heating module, the first electromagnetic coil and the second electromagnetic coil generate an alternating magnetic field, thereby achieving electromagnetic heating of the heating plate body. Compared with traditional electric heating, electromagnetic heating significantly reduces power consumption while ensuring the heating effect.
[0007] In some embodiments, the first electromagnetic coil is formed by continuously winding a first metal wire along a first serpentine path, and the second electromagnetic coil is formed by continuously winding a second metal wire along a second serpentine path.
[0008] The first electromagnetic coil and the second electromagnetic coil are formed by winding different metal wires. On the one hand, the first electromagnetic coil and the second electromagnetic coil are formed separately, thereby reducing the difficulty of coil winding. In addition, the first electromagnetic coil and the second electromagnetic coil can be independently powered on and controlled, thereby realizing the separate control of the heating temperature of the middle area and the peripheral area of the heating plate body.
[0009] In some embodiments, the electromagnetic heating module includes a plurality of first serpentine winding areas arranged in a rectangular array, and each of the first serpentine winding areas is correspondingly provided with a first electromagnetic coil.
[0010] Arranging a plurality of first electromagnetic coils in a rectangular array can increase the heating area of the electromagnetic heating module and ensure heating uniformity.
[0011] In some embodiments, the first electromagnetic coil is formed by winding at least two first metal wires in parallel, and the second electromagnetic coil is formed by winding at least two second metal wires in parallel.
[0012] The first electromagnetic coil and the second electromagnetic coil include more than two turns of metal wire, which can increase the magnetic flux of the first electromagnetic coil and the second electromagnetic coil after power is supplied, thereby improving the heating efficiency.
[0013] In some embodiments, the electromagnetic heating module also includes a supporting plate, a first serpentine groove extending along a first serpentine path is provided in the middle of the supporting plate, and the first electromagnetic coil is wound in the first serpentine groove; a second serpentine groove extending along a second serpentine path is provided on the peripheral side of the supporting plate, and the second electromagnetic coil is wound in the second serpentine groove; the supporting plate is mounted on the lower surface of the hot plate body.
[0014] The first metal wire and the second metal wire are wound in the first serpentine wire groove and the second serpentine wire groove on the carrier plate, so as to realize the pre-preparation and forming of the electromagnetic heating module. Subsequently, the electromagnetic heating module is directly mounted as a whole on the lower surface of the heating plate body to complete the rapid assembly of the electromagnetic heating plate of the present application. In addition, when the first electromagnetic coil and the second electromagnetic coil in the electromagnetic heating module are damaged, the heating module can be replaced as a whole.
[0015] In some embodiments, the carrier plate is an insulating plate or a metal plate, and the heating plate body is a metal plate.
[0016] The insulating plate is used as the carrier plate. After the electromagnetic heating module is mounted on the heating plate body, the insulating plate can play a role in heat insulation. The metal plate is used as the carrier plate, which is conducive to the heat dissipation of the first electromagnetic coil and the second electromagnetic coil, and the electromagnetic wires around the first electromagnetic coil and the second electromagnetic coil can also be fully utilized to heat the metal plate. The heat is transferred to the heating plate body through the metal plate, further improving the heating efficiency of the first electromagnetic coil and the second electromagnetic coil.
[0017] In some embodiments, at least one winding area is provided on the lower surface of the heating plate body; a first serpentine groove extending along a first serpentine path is provided in the middle of the winding area, and a second serpentine groove extending along a second serpentine path is provided in the peripheral area of the winding area; the first electromagnetic coil is wound in the first serpentine groove, and the second electromagnetic coil is wound in the second serpentine groove.
[0018] The first electromagnetic coil and the second electromagnetic coil are directly wound into the first serpentine groove and the second serpentine groove on the lower surface of the heating plate body, so that the first electromagnetic coil and the second electromagnetic coil can directly heat the heating plate body, further improving the heating efficiency.
[0019] In some embodiments, the electromagnetic heating plate includes a plurality of electromagnetic heating modules, and the plurality of electromagnetic heating modules are evenly arranged in a rectangular array on the lower surface of the heating plate body.
[0020] For a large-area heating plate body, multiple electromagnetic heating modules are distributed in different areas of the heating plate body in a predetermined regular pattern, thereby forming different heating areas on the heating plate body to meet the heating requirements for different pressure-bearing processes.
[0021] In some embodiments, the electromagnetic heating plate further comprises a heat insulation layer mounted on the lower surface of the heating plate body, and the electromagnetic heating module is enclosed in the heat insulation layer.
[0022] By providing a heat insulation layer, the heat loss of the electromagnetic heating module is reduced.
[0023] In some embodiments, the electromagnetic heating plate further comprises a temperature sensor disposed on the heating plate body.
[0024] By arranging a temperature sensor in the heating plate body, real-time monitoring of the temperature of the heating plate body is achieved, and ultimately it is ensured that the annular electromagnetic coil heats the heating plate body to a predetermined temperature value.
[0025] The present application also provides a laminating machine, which includes the electromagnetic heating plate described in any of the above items, as well as a conveyor belt, a pressing device and a vacuum device, wherein the conveyor belt is mounted on the outside of the electromagnetic heating plate, the conveyor belt is used to convey the photovoltaic module to the top of the electromagnetic heating plate, the electromagnetic heating plate is used to heat the photovoltaic module located above the electromagnetic heating plate, the pressing device is used to seal the photovoltaic module located above the electromagnetic heating plate to the electromagnetic heating plate to form a laminating cavity between the electromagnetic heating plate and the pressing device, the vacuum device is used to vacuum the laminating cavity, and the pressing device is also used to apply pressure to the photovoltaic module after the photovoltaic module is heated.
[0026] The laminator provided in the present application implements lamination processing of photovoltaic modules by means of electromagnetic heating, which reduces the power consumption during the lamination process. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a bottom view structural diagram of an electromagnetic heating plate according to an embodiment of the present application;
[0028] Figure 2 This is a bottom view of the structure of an electromagnetic heating plate according to another embodiment of the present application;
[0029] Figure 3 This is a schematic cross-sectional structural diagram of an electromagnetic heating plate according to an embodiment of the present application;
[0030] Figure 4 This is a schematic cross-sectional structural diagram of an electromagnetic heating plate according to another embodiment of the present application.
[0031] Figures 1 to 4 The device comprises: a heating plate body 1, a first electromagnetic coil 2, a second electromagnetic coil 3, a first metal wire 4, a second metal wire 5, a bearing plate 6, a temperature sensor 7, and a heat insulation layer 8. DETAILED DESCRIPTION
[0032] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0033] like Figures 1 to 4 As shown, the electromagnetic heating plate for the photovoltaic module laminator of the embodiment of the present application includes a heating plate body 1 and at least one electromagnetic heating module arranged on the lower surface of the heating plate body 1. The electromagnetic heating module includes at least one first electromagnetic coil 2 wound along a first serpentine path and a second electromagnetic coil 3 wound along a second serpentine path, wherein the second electromagnetic coil 3 is wrapped around the outside of the first electromagnetic coil 1.
[0034] In one implementation, there are a plurality of first electromagnetic coils 2 , and a second electromagnetic coil 3 surrounds the outer side of each first electromagnetic coil 2 .
[0035] In another implementation, there are multiple first electromagnetic coils 2, for example, there are four first electromagnetic coils 2, and the four first electromagnetic coils 2 are arranged in two rows and two columns. Outside the four first electromagnetic coils 2, a second electromagnetic coil 3 is provided, and the second electromagnetic coil 3 surrounds the four first electromagnetic coils as a whole.
[0036] In one implementation, the first electromagnetic coil 2 and the second electromagnetic coil 3 may be wound using the same strand of metal wire. The strand of metal wire may include 1, 2, 3 or more metal wires arranged in parallel.
[0037] For example, Figure 1 The electromagnetic heating module in the illustrated embodiment comprises only one first electromagnetic coil 2 . Figure 2 The electromagnetic heating module in the illustrated embodiment includes a plurality of (for example, 12) first serpentine winding areas arranged in a rectangular array, and each first serpentine winding area corresponds to a first electromagnetic coil 2. In this way, the heating area of the electromagnetic heating module can be increased and heating uniformity can be ensured.
[0038] After the alternating current is passed into the first electromagnetic coil 2, the alternating current generates an alternating magnetic field in the first electromagnetic coil 2. The heating plate body 1 cuts the magnetic field lines of the alternating magnetic field corresponding to the middle part of the first electromagnetic coil 2, so that an alternating current, i.e., an eddy current, is generated in the middle part of the heating plate body 1. The eddy current causes atoms to move irregularly at high speed, and the atoms collide and rub against each other to generate heat energy, thereby achieving heating of the middle part of the heating plate body 1.
[0039] Similarly, after the alternating current is passed into the second electromagnetic coil 3, the alternating current generates an alternating magnetic field in the second electromagnetic coil 3. The heating plate body 1 cuts the magnetic field lines of the alternating magnetic field at the peripheral part corresponding to the second electromagnetic coil 3, so that the peripheral part of the heating plate body 1 generates an alternating current, i.e., an eddy current. The eddy current causes atoms to move irregularly at high speed, and the atoms collide and rub against each other to generate heat energy, thereby achieving heating of the peripheral part of the heating plate body 1.
[0040] Compared with traditional electric heating, electromagnetic heating significantly reduces energy consumption while ensuring the heating effect.
[0041] Optionally, the first electromagnetic coil 2 is formed by continuously winding the first metal wire 4 along a first serpentine path, and the second electromagnetic coil 5 is formed by continuously winding the second metal wire 5 along a second serpentine path. Figure 1 The A end and the B end in FIG. 2 are connected to the two poles of the power supply respectively, and the power supply can pass the alternating current into each first electromagnetic coil 2. Similarly, the two ends of the second metal wire 5 (such as Figure 1 The a end and the b end in the figure are connected to the two poles of the power supply respectively, and the power supply can pass the alternating current into each second electromagnetic coil 3.
[0042] The first electromagnetic coil 2 and the second electromagnetic coil 3 are formed by winding different metal wires. On the one hand, the first electromagnetic coil 2 and the second electromagnetic coil 3 are separately wound and formed, thereby reducing the difficulty of coil winding. In addition, the power supply can implement independent power-on control on the first electromagnetic coil 2 and the second electromagnetic coil 3, so as to realize the separate control of the heating temperature of the middle area and the peripheral area of the heating plate body 1. For example, during the lamination process, the temperature of the middle area of the heating plate body 1 needs to be higher than the temperature of the peripheral area of the heating plate body 1. At this time, the power supply can pass a larger first alternating current to the first electromagnetic coil 2, and pass a smaller second alternating current to the second electromagnetic coil 3.
[0043] Optionally, the first electromagnetic coil 2 is formed by at least two first metal wires 4 being wound in parallel, and the second electromagnetic coil 3 is formed by at least two second metal wires 5 being wound in parallel.
[0044] Optionally, at least two metal wires in the first electromagnetic coil 2 are arranged along the thickness direction of the heating plate body 1 ( Figure 3 and Figure 4 The at least two metal wires in the second electromagnetic coil 3 are arranged overlappingly along the thickness direction of the heating plate body 1.
[0045] By winding in this way, the first electromagnetic coil 2 and the second electromagnetic coil 3 include more than two turns of metal wire, thereby increasing the magnetic flux of the first electromagnetic coil 2 and the second electromagnetic coil 3 after being energized, and improving the heating efficiency. Of course, in order to ensure that the multi-turn metal coil can be tightly wound in the wire slot, the depth of the wire slot needs to be increased.
[0046] Of course, at least two metal wires in the first electromagnetic coil 2 can be arranged in parallel along the horizontal direction, and similarly, at least two metal wires in the second electromagnetic coil 3 can also be arranged in parallel along the horizontal direction.
[0047] The number of metal wires in the electromagnetic coil can be 2, 3, 4, 5 or more.
[0048] like Figure 3 As shown, optionally, the electromagnetic heating module further includes a carrier plate 6, a first serpentine groove extending along a first serpentine path is provided in the middle of the carrier plate 6, and the first electromagnetic coil 2 is wound in the first serpentine groove. A second serpentine groove extending along a second serpentine path is provided on the peripheral side of the carrier plate 6, and the second electromagnetic coil 3 is wound in the second serpentine groove.
[0049] The first electromagnetic coil 2 and the second electromagnetic coil 3 are pre-wound in the first serpentine groove and the second serpentine groove on the carrier plate 6, so as to realize the pre-preparation and forming of the electromagnetic heating module. Subsequently, the carrier plate 6 is directly attached to the lower surface of the heating plate body 1 to complete the rapid assembly of the electromagnetic heating plate of the present application. In addition, when the first electromagnetic coil 2 and the second electromagnetic coil 3 in the electromagnetic heating module are damaged, the heating module can be replaced as a whole.
[0050] Optionally, an insulating board is used as the bearing board 6 , and after the electromagnetic heating module is mounted on the heating board body 1 , the insulating board can play a role of heat insulation.
[0051] Optionally, the carrier plate 6 and the heating plate body 1 are both metal plates. Using a metal plate as the carrier plate 6 is conducive to the heat dissipation of the first electromagnetic coil 2 and the second electromagnetic coil 3. In addition, the electromagnetic wires around the first electromagnetic coil 2 and the second electromagnetic coil 3 can also be fully utilized to heat the metal plate, and the heat can eventually be conducted to the heating plate body 1 through the metal plate, thereby further improving the heating efficiency of the first electromagnetic coil 2 and the second electromagnetic coil 3.
[0052] In order to reduce heat loss, optionally, after the carrier plate 6 is mounted on the lower surface of the heating plate body 1 , a heat insulation layer 8 is laid on the lower surface of the heating plate body 1 . The heat insulation layer 8 may be made of, for example, heat insulation cotton.
[0053] Of course, if Figure 4 As shown, at least one winding area can also be directly provided on the lower surface of the heating plate body 1. A first serpentine groove extending along a first serpentine path is provided in the middle of the winding area, and a second serpentine groove extending along a second serpentine path is provided in the peripheral area of the winding area. The first electromagnetic coil 2 is wound in the first serpentine groove, and the second electromagnetic coil 3 is wound in the second serpentine groove.
[0054] The first electromagnetic coil 2 and the second electromagnetic coil 3 are directly wound into the first serpentine groove and the second serpentine groove on the lower surface of the heating plate body 1, so that the first electromagnetic coil 2 and the second electromagnetic coil 3 can directly heat the heating plate body 1, thereby further improving the heating efficiency.
[0055] Similarly, in order to reduce heat loss, optionally, after the first electromagnetic coil 2 and the second electromagnetic coil 3 are wound and formed, a heat insulation layer 8 may be applied on the lower surface of the heat plate body 1 .
[0056] Optionally, the electromagnetic heating plate in the embodiment of the present application includes a plurality of electromagnetic heating modules, and the plurality of electromagnetic heating modules are evenly arranged in a rectangular array on the lower surface of the heating plate body.
[0057] For a large-area heating plate body, multiple electromagnetic heating modules are regularly distributed in different areas of the heating plate body 1 in a predetermined manner, thereby forming different heating areas on the heating plate body 1 to meet the heating requirements for different pressure-bearing processes. For example, the electromagnetic heating plate of the present application needs to laminate two photovoltaic modules at the same time. In this case, two sets of electromagnetic heating modules can be arranged on the heating plate body 1 at intervals.
[0058] like Figure 3 and Figure 4 As shown, optionally, the electromagnetic heating plate in the embodiment of the present application further includes a temperature sensor 7 installed in the heating plate body 1. By arranging the temperature sensor 7 in the heating plate body 1, real-time monitoring of the temperature of the heating plate body 1 is achieved, and finally it is ensured that the electromagnetic heating module heats the heating plate body 1 to a predetermined temperature value. For example, the temperature sensor 7 is connected to the controller signal of the power supply providing the alternating current, and the temperature sensor 7 transmits the collected temperature value of the heating plate body 1 to the controller of the power supply, and the controller of the power supply generates a control signal based on the temperature value, and finally the power supply passes the alternating current of the appropriate size into the first electromagnetic coil 2 and the second electromagnetic coil 3.
[0059] The embodiment of the present application also provides a photovoltaic module laminator, which includes the electromagnetic heating plate provided by any of the above embodiments, as well as a conveyor belt, a pressing device and a vacuum device, wherein the conveyor belt is sleeved on the outside of the electromagnetic heating plate, the conveyor belt is used to convey the photovoltaic module to the top of the electromagnetic heating plate, the electromagnetic heating plate is used to heat the photovoltaic module located above the electromagnetic heating plate, the pressing device is used to seal the photovoltaic module located above the electromagnetic heating plate to the electromagnetic heating plate to form a lamination cavity between the electromagnetic heating plate and the pressing device, the vacuum device is used to vacuum the lamination cavity, and the pressing device is also used to pressurize the photovoltaic module after the photovoltaic module is heated. The laminator provided in the embodiment of the present application implements the lamination process of the photovoltaic module by electromagnetic heating, which reduces the power consumption during the lamination process.
[0060] The above description of the present application is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the above description in the embodiments. Moreover, the embodiments mentioned in the present application are not limited to being implemented individually, and some embodiments can also be implemented in combination.
Claims
1. An electromagnetic heating plate for a photovoltaic module laminator, characterized in that: The electromagnetic heating plate comprises a heating plate body and at least one electromagnetic heating module arranged on the lower surface of the heating plate body; The electromagnetic heating module includes at least one first electromagnetic coil wound along a first serpentine path and a second electromagnetic coil wound along a second serpentine path, wherein the second electromagnetic coil is wound around the outside of the first electromagnetic coil.
2. The electromagnetic heating plate according to claim 1, characterized in that: The first electromagnetic coil is formed by continuously winding a first metal wire along the first serpentine path, and the second electromagnetic coil is formed by continuously winding a second metal wire along the second serpentine path.
3. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic heating module includes a plurality of first serpentine winding areas arranged in a rectangular array, and each of the first serpentine winding areas is correspondingly provided with a first electromagnetic coil.
4. The electromagnetic heating plate according to claim 2, characterized in that: The first electromagnetic coil is formed by winding at least two first metal wires in parallel, and the second electromagnetic coil is formed by winding at least two second metal wires in parallel.
5. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic heating module further comprises a carrying plate, a first serpentine groove extending along the first serpentine path is provided in the middle of the carrying plate, and the first electromagnetic coil is wound in the first serpentine groove; A second serpentine groove extending along the second serpentine path is arranged on the peripheral side of the carrying plate, and the second electromagnetic coil is wound in the second serpentine groove; The carrying plate is mounted on the lower surface of the hot plate body.
6. The electromagnetic heating plate according to claim 5, characterized in that: The supporting plate is an insulating plate or a metal plate, and the heating plate body is a metal plate.
7. The electromagnetic heating plate according to claim 1, characterized in that: The lower surface of the heating plate body is provided with at least one winding area; A first serpentine groove extending along the first serpentine path is provided in the middle of the winding area, and a second serpentine groove extending along the second serpentine path is provided in the peripheral area of the winding area; The first electromagnetic coil is wound in the first serpentine groove, and the second electromagnetic coil is wound in the second serpentine groove.
8. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic heating plate comprises a plurality of electromagnetic heating modules, and the plurality of electromagnetic heating modules are evenly arranged in a rectangular array on the lower surface of the heating plate body.
9. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic heating plate further comprises a heat insulation layer attached to the lower surface of the heating plate body, and the electromagnetic heating module is enclosed in the heat insulation layer.
10. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic heating plate further comprises a temperature sensor arranged on the heating plate body.
11. A photovoltaic module laminating machine, characterized in that: The laminator comprises the electromagnetic heating plate according to any one of claims 1 to 10, a conveyor belt, a pressing device and a vacuum device, wherein the conveyor belt is sleeved on the outside of the electromagnetic heating plate, the conveyor belt is used to convey the photovoltaic module to the top of the electromagnetic heating plate, the electromagnetic heating plate is used to heat the photovoltaic module located above the electromagnetic heating plate, the pressing device is used to seal the photovoltaic module located above the electromagnetic heating plate to the electromagnetic heating plate to form a lamination cavity between the electromagnetic heating plate and the pressing device, the vacuum device is used to vacuum the lamination cavity, and the pressing device is also used to apply pressure to the photovoltaic module after the photovoltaic module is heated.
Citation Information
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