Electromagnetic heating plate for photovoltaic module laminating machine and laminating machine
By using electromagnetic heating plates in photovoltaic module laminators and using electromagnetic coils to generate alternating magnetic fields to achieve heating, the problem of high energy consumption in traditional electric heating methods is solved and a more efficient heating process is achieved.
Patent Information
- Application Number
- CN202421171110.X
- 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 electric heating method of traditional photovoltaic module laminators consumes a lot of electricity, increases the lamination cost, and the oil heating method causes damage to the environment.
An electromagnetic heating plate is used to plug an electromagnetic heating core on the lower surface of the heating plate body, and an alternating magnetic field is generated by an electromagnetic coil to achieve heating, reducing electrical energy consumption.
On the premise of ensuring heating effect, the power consumption is greatly reduced, the lamination cost is reduced, and the environmental damage is reduced.
Smart Images
Figure CN222839844U_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 a plurality of electromagnetic heating cores, wherein:
[0005] The lower surface of the heating plate body is provided with a plurality of mounting holes, the mounting holes extending along the thickness direction of the heating plate body, and an electromagnetic heating core is inserted into each mounting hole;
[0006] The electromagnetic heating core comprises a magnetic core shaft and an electromagnetic coil wound on the magnetic core shaft.
[0007] The electromagnetic heating plate for photovoltaic module laminator provided in the present application has an electromagnetic heating core formed by an electromagnetic coil wound on a magnetic core shaft plugged into the lower surface of the heating plate body. After the alternating current is passed into the electromagnetic heating module, the electromagnetic coil generates an alternating magnetic field, and finally realizes electromagnetic heating of the heating plate body. Compared with traditional electric heating, electromagnetic heating greatly reduces the power consumption while ensuring the heating effect.
[0008] In some embodiments, the plurality of electromagnetic heating cores include at least two groups, and the electromagnetic coils of the electromagnetic heating cores in the same group are connected in series in sequence and then electrically connected to a power source.
[0009] For a large-area heating plate body, multiple groups of electromagnetic heating cores 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.
[0010] In some embodiments, the electromagnetic coil of each electromagnetic heating core is formed by winding a continuous metal wire in sequence, and two ends of the metal wire are used to connect two poles of a power source.
[0011] The rapid winding and forming of the electromagnetic heating core is realized, and the electromagnetic heating core is connected in series with the two poles of the power supply.
[0012] In some embodiments, the electromagnetic heating cores are evenly arranged in a rectangular array on the lower surface of the heating plate body, and the metal wires are sequentially passed around the magnetic core axes of the electromagnetic heating cores in columns or rows.
[0013] The electromagnetic heating cores are evenly arranged in a rectangular array on the lower surface of the heating plate body, which can ensure the uniformity of the heating temperature of the corresponding heating area.
[0014] In some embodiments, a connecting groove for the metal wire to pass through is provided between the mounting holes corresponding to two adjacent electromagnetic heating cores.
[0015] After the electric core coil of one electromagnetic heating core is wound and formed, the metal wire can be wound onto the magnetic core shaft of another adjacent electromagnetic heating core through the connecting groove.
[0016] In some embodiments, the first end of the magnetic core shaft is inserted into the mounting hole, the second end of the magnetic core shaft extends out of the mounting hole, and a retaining ring is provided at the second end of the magnetic core shaft; the electromagnetic coil is wound on the magnetic core shaft between the heating plate body and the retaining ring.
[0017] The electromagnetic coil wound on the magnetic core shaft is confined between the heating plate body and the retaining ring to prevent the electromagnetic coil from falling off.
[0018] In some embodiments, the electromagnetic heating plate further comprises a first thermal insulation layer mounted on the surface of the heating plate body, and the electromagnetic coil of the magnetic core shaft is wrapped in the first thermal insulation layer.
[0019] By encapsulating the electromagnetic coil of the magnetic core shaft in the first heat insulation layer, heat loss is reduced and the heating efficiency of the electromagnetic heating core on the heating plate body is improved.
[0020] In some embodiments, the electromagnetic heating plate also includes a metal heat-conducting plate and a second heat-insulating layer, wherein: the metal heat-conducting plate is provided with a plurality of accommodating holes corresponding one-to-one to the electromagnetic heating core, the metal heat-conducting plate is mounted on the lower surface of the heating plate body, and the electromagnetic coil of the magnetic core shaft is located in the accommodating hole; the second heat-insulating layer is mounted on the lower surface of the metal heat-conducting plate.
[0021] The metal heat conducting plate and the magnetic core shaft cooperate to conduct heat into the heating plate body, thereby reducing heat loss. The second heat insulation layer achieves thermal isolation between the metal heat conducting plate, the electromagnetic heating core and the outside world, further reducing heat loss.
[0022] In some embodiments, the electromagnetic heating plate further comprises a temperature sensor mounted within the heating plate body.
[0023] 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 electromagnetic heating core heats the heating plate body to a predetermined temperature value.
[0024] In some embodiments, the electromagnetic coil is formed by at least two metal wires being wound in parallel, and / or the electromagnetic coil on each electromagnetic heating core is wound into at least two turns.
[0025] By configuring the electromagnetic coil to have at least two metal wires or configuring the electromagnetic coil to have at least two turns, the magnetic flux can be increased, thereby enhancing the heating effect on the heating plate body.
[0026] An embodiment of the present application also provides a laminating machine, which includes the electromagnetic heating plate described in any one 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 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.
[0027] 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
[0028] Figure 1 This is a bottom view structural diagram of the electromagnetic heating plate of an embodiment of the present application;
[0029] Figure 2 This is a schematic diagram of the structure of the electromagnetic heating core of an embodiment of the present application;
[0030] Figure 3 This is a schematic cross-sectional structural diagram of an electromagnetic heating plate according to an embodiment of the present application;
[0031] Figure 4 This is a schematic cross-sectional structural diagram of an electromagnetic heating plate according to another embodiment of the present application.
[0032] Figures 1 to 4 Included:
[0033] Heating plate body 1;
[0034] Electromagnetic heating core 2: magnetic core shaft 21, electromagnetic coil 22, retaining ring 23;
[0035] Metal wire 3;
[0036] A first heat insulation layer 4;
[0037] Metal heat conducting plate 5;
[0038] Second thermal insulation layer 6. DETAILED DESCRIPTION
[0039] 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.
[0040] 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 a plurality of electromagnetic heating cores 2, wherein:
[0041] The lower surface of the heating plate body 1 is provided with a plurality of mounting holes, and the mounting holes are arranged along the thickness direction of the heating plate body (such as Figure 3 and Figure 4 The mounting holes extend in the direction indicated by the arrows in the figure, and an electromagnetic heating core 2 is inserted into each mounting hole.
[0042] The electromagnetic heating core 2 comprises a magnetic core shaft 21 and an electromagnetic coil 22 wound around the magnetic core shaft 21 .
[0043] After the alternating current is passed through the electromagnetic coil 22 of each electromagnetic heating core 2, the alternating current generates an alternating magnetic field in the electromagnetic coil 22. The magnetic core shaft 21 cuts the magnetic lines of force of the alternating magnetic field, thereby generating an alternating current, i.e., an eddy current, inside the magnetic core shaft 21. The eddy current causes the atoms inside the magnetic core shaft 21 to move irregularly at high speed, and the atoms collide and rub against each other to generate heat energy, thereby achieving the effect of heating the magnetic core shaft 21. The heat on the magnetic core shaft 21 is transmitted to the heating plate body 1, thereby achieving the heating of the heating plate body 1.
[0044] The electromagnetic coil 22 directly heats the magnetic core shaft 21, reducing heat loss and power consumption.
[0045] Figure 1 In the illustrated embodiment, only one group of electromagnetic heating cores 2 is disposed on the heating plate body 1 , and the electromagnetic heating cores 2 are evenly distributed on the entire surface of the heating plate body 1 , so that the heating plate body 1 is evenly heated.
[0046] In some other embodiments, at least two groups of electromagnetic heating cores 2 are disposed on the heating plate body 1, and the electromagnetic coils 22 of the electromagnetic heating cores 2 of the same group are connected in series in sequence and then electrically connected to a power source.
[0047] In one implementation, two groups of electromagnetic heating cores 2 are provided, and the two groups of electromagnetic heating cores 2 are arranged side by side on the heating plate body 1. One power supply is provided, and the electromagnetic coils on the two groups of electromagnetic heating cores are connected in series to the power supply. Alternatively, two power supplies are provided, and one power supply is connected to the electromagnetic coils on each group of electromagnetic heating cores.
[0048] In one implementation, three groups of electromagnetic heating cores 2 are provided, and the three groups of electromagnetic heating cores 2 are arranged side by side on the heating plate body 1, and one power supply is provided, and the electromagnetic coils on the three groups of electromagnetic heating cores are connected in series and then connected to the power supply. Alternatively, three power supplies are provided, and the electromagnetic coils on each group of electromagnetic heating cores are connected to one power supply.
[0049] In one implementation, four groups of electromagnetic heating cores 2 are provided, and the four groups of electromagnetic heating cores 2 are arranged in two rows on the heating plate body 1, and one power supply is provided, and the electromagnetic coils on the two groups of electromagnetic heating cores are connected in series to the power supply. Alternatively, four power supplies are provided, and the electromagnetic coils on each group of electromagnetic heating cores are connected to one power supply.
[0050] The number of groups of power sources and electromagnetic heating cores 2 can also be adjusted as needed.
[0051] For a large-area heating plate body 1, two or more groups of electromagnetic heating cores 2 are regularly distributed in different areas of the heating plate body 2 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 groups of electromagnetic heating cores 2 can be arranged on the heating plate body 1 at intervals.
[0052] Optional, such as Figure 1 As shown, the electromagnetic coil 22 of each electromagnetic heating core 2 is formed by winding a continuous metal wire 3 in sequence, and the two ends of the metal wire 3 are used to connect the two poles of the power supply. Each electromagnetic heating core 2 is connected in series to the two poles of the power supply, and the power supply simultaneously passes alternating current into the electromagnetic coil 22 of each electromagnetic heating core 2.
[0053] Optionally, the electromagnetic heating cores 2 are evenly arranged in a rectangular array on the lower surface of the heating plate body, and the metal wires 3 are sequentially passed around the magnetic core shafts 21 of each electromagnetic heating core 2 in columns or rows. Such an arrangement, on the one hand, facilitates the winding and forming of the electromagnetic coils 22 of the electromagnetic heating cores 2 of the same group, and on the other hand, enables the electromagnetic heating cores 2 of the same group to uniformly heat the heating plate body 1 at the location.
[0054] Optionally, the magnetic core shafts 21 of all electromagnetic heating cores 2 can be pre-installed into the corresponding mounting holes of the heating plate body 1, and then the metal wire 3 can be passed around the magnetic core shafts 21 of each electromagnetic heating core 2 in turn. In order to facilitate the winding of the metal wire 3, optionally, a connecting groove for the metal wire to pass through is provided between the corresponding mounting holes of two adjacent electromagnetic heating cores 2. In this way, after the winding and forming of the electric core coil 22 of one electromagnetic heating core 2 is completed, the metal wire 3 can be smoothly transferred to the magnetic core shaft 21 of another adjacent electromagnetic heating core through the connecting groove.
[0055] Of course, the magnetic core shafts 21 of all electromagnetic heating cores 2 can also be pre-installed on a support plate, and then the metal wire 3 is passed around the magnetic core shafts 21 of each electromagnetic heating core 2 in turn, so as to form a heating module consisting of a support plate and a group of electromagnetic heating cores 2. Finally, the heating module is installed as a whole on the heating plate body 1. The magnetic core shaft 21 is installed in the corresponding mounting hole by interference fit.
[0056] like Figure 2 As shown, optionally, the first end of the magnetic core shaft 21 (such as Figure 2 The upper end of the magnetic core shaft 21 is inserted into the mounting hole, and the second end of the magnetic core shaft 21 (such as Figure 2 The lower end of the magnetic core shaft 21 extends out of the mounting hole, and a retaining ring 23 is provided at the second end of the magnetic core shaft 21. The electromagnetic coil 22 is wound on the magnetic core shaft 21 between the heating plate body 1 and the retaining ring 23. In this way, the electromagnetic coil 22 wound on the magnetic core shaft 21 is confined between the heating plate body 1 and the retaining ring 23 to prevent the electromagnetic coil 22 from falling off.
[0057] like Figure 3 As shown, optionally, the electromagnetic heating plate in the embodiment of the present application further includes a first thermal insulation layer 4 attached to the surface of the heating plate body 1, and the electromagnetic coil 22 of the magnetic core shaft 2 is wrapped in the first thermal insulation layer 4. In this way, heat loss can be reduced and the heating efficiency of the electromagnetic heating core 2 on the heating plate body 1 can be improved. The first thermal insulation layer 4 can be, for example, thermal insulation cotton attached to the surface of the heating plate body 1.
[0058] like Figure 4 As shown, optionally, the electromagnetic heating plate in the embodiment of the present application further includes a metal heat conducting plate 5 and a second heat insulating layer 6, wherein: the metal heat conducting plate 5 is provided with a plurality of accommodating holes corresponding to the electromagnetic heating core 2 one by one, the metal heat conducting plate 5 is attached to the lower surface of the heating plate body 1, and the electromagnetic coil 21 of the magnetic core shaft 2 is located in the accommodating hole. The second heat insulating layer 6 is attached to the lower surface of the metal heat conducting plate 5.
[0059] The electromagnetic coil heats the metal heat-conducting plate 5 and the magnetic core shaft 21 synchronously, and the metal heat-conducting plate 5 and the magnetic core shaft 21 jointly conduct heat to the heating plate body 1, reducing heat loss. The second thermal insulation layer 6 realizes thermal isolation of the metal heat-conducting plate 5 and the electromagnetic heating core 2 from the outside, further reducing heat loss. The second thermal insulation layer 6 can be, for example, thermal insulation cotton or a thermal insulation board attached to the surface of the heating plate body 1.
[0060] Optionally, the electromagnetic heating plate in the embodiment of the present application further includes a temperature sensor installed in the heating plate body 1. By arranging the temperature sensor in the heating plate body 1, real-time monitoring of the temperature of the heating plate body is achieved, and ultimately it is ensured that the electromagnetic heating core 21 heats the heating plate body 1 to a predetermined temperature value. For example, the temperature sensor is connected to the controller signal of the power supply that provides the alternating current, and the temperature sensor transmits the collected temperature value of the heating plate body to the controller of the power supply, and the controller of the power supply generates a control signal based on the temperature value, and ultimately the power supply passes an alternating current of a suitable size into the electromagnetic coil of the electromagnetic heating core 2.
[0061] In some embodiments, the electromagnetic coil is formed by at least two metal wires being wound in parallel, and / or the electromagnetic coil on each electromagnetic heating core is wound into at least two turns.
[0062] In one implementation, the electromagnetic coil may be formed by winding three metal wires in parallel, and the three metal wires are wound around the electromagnetic heating core twice.
[0063] In one implementation, the electromagnetic coil may be formed by winding three metal wires in parallel, and the three metal wires are wound three times around the electromagnetic heating core.
[0064] In some embodiments, the electromagnetic coil may be formed by winding four metal wires in parallel, and the four metal wires are wound around the electromagnetic heating core twice.
[0065] In some embodiments, the electromagnetic coil may be formed by winding five metal wires in parallel, and the five metal wires are wound around the electromagnetic heating core twice.
[0066] In one implementation, the electromagnetic coil is formed by winding a metal wire, and the electromagnetic coil is wound with 2 turns, 3 turns, 4 turns, 5 turns, 6 turns...10 turns, 11 turns, 12 turns or more.
[0067] Of course, depending on the actual wiring and winding conditions, some electromagnetic coils may be wound with non-integer turns such as two and a half turns or three and a half turns.
[0068] By configuring the electromagnetic coil to have at least two metal wires or configuring the electromagnetic coil to have at least two turns, the magnetic flux can be increased, thereby enhancing the heating effect on the heating plate body.
[0069] 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.
[0070] 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 a plurality of electromagnetic heating cores, wherein: The lower surface of the heating plate body is provided with a plurality of mounting holes, the mounting holes extending along the thickness direction of the heating plate body, and each mounting hole is plugged with one of the electromagnetic heating cores; The electromagnetic heating core comprises a magnetic core shaft and an electromagnetic coil wound on the magnetic core shaft.
2. The electromagnetic heating plate according to claim 1, characterized in that: The plurality of electromagnetic heating cores include at least two groups, and the electromagnetic coils of the electromagnetic heating cores in the same group are connected in series in sequence and then electrically connected to a power source.
3. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic coil of the electromagnetic heating core is formed by winding a continuous metal wire in sequence, and the two ends of the metal wire are used to connect the two poles of a power source.
4. The electromagnetic heating plate according to claim 3, characterized in that: The electromagnetic heating cores are evenly arranged in a rectangular array on the lower surface of the heating plate body, and the metal wires are sequentially wound around the magnetic core axes of the electromagnetic heating cores in columns or rows.
5. The electromagnetic heating plate according to claim 3, characterized in that: A connecting groove for the metal wire to pass through is provided between the mounting holes corresponding to two adjacent electromagnetic heating cores.
6. The electromagnetic heating plate according to claim 1, characterized in that: The first end of the magnetic core shaft is inserted into the mounting hole, the second end of the magnetic core shaft extends out of the mounting hole, and a retaining ring is provided at the second end of the magnetic core shaft; The electromagnetic coil is wound on the magnetic core shaft between the heating plate body and the retaining ring.
7. The electromagnetic heating plate according to claim 6, characterized in that: The electromagnetic heating plate further comprises a first heat-insulating layer attached to the surface of the heating plate body, and the electromagnetic coil of the magnetic core shaft is wrapped in the first heat-insulating layer.
8. The electromagnetic heating plate according to claim 6, characterized in that: The electromagnetic heating plate further comprises a metal heat conducting plate and a second heat insulating layer, wherein: The metal heat-conducting plate is provided with a plurality of accommodating holes corresponding to the electromagnetic heating cores one by one, the metal heat-conducting plate is attached to the lower surface of the heating plate body, and the electromagnetic coil of the magnetic core shaft is located in the accommodating holes; The second heat insulation layer is attached to the lower surface of the metal heat conducting plate.
9. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic heating plate also includes a temperature sensor mounted within the heating plate body.
10. The electromagnetic heating plate according to claim 1, characterized in that: The electromagnetic coil is formed by at least two metal wires being wound in parallel, and / or the electromagnetic coil on each electromagnetic heating core is wound into at least two turns.
11. A laminating machine, characterized in that: The laminator comprises the electromagnetic heating plate, conveyor belt, upper pressing device and vacuum device as described in any one of claims 1 to 10, 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 upper 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 upper pressing device, the vacuum device is used to vacuum the lamination cavity, and the upper pressing device is also used to pressurize the photovoltaic module after the photovoltaic module is heated.