Dense winding coil disc and electromagnetic heating appliance

Abstract

The utility model discloses a close winding coil panel and an electromagnetic heating appliance, the close winding coil panel comprises an insulation board, the upper surface of the insulation board is connected with an electromagnetic coil, and the center of the insulation board is provided with a positioning hole; the center and the edge of the fixing support are provided with a center flange and a boundary flange respectively, the center flange penetrates through the positioning hole and is in close fit with the positioning hole, and a containing space is jointly formed between the center flange and the boundary flange; the number of the magnetic cores is multiple, a plurality of containing grooves are formed in the bottom face of the fixing support, and each magnetic core is connected into the corresponding containing groove; the bottom plate is provided with a plurality of groups of mounting holes, the fixing support is provided with at least two limiting buckles, and each limiting buckle is connected to the corresponding mounting hole. In the assembling process, the insulation heat insulation plate is positioned and installed in the containing space through the center flange, the fixing support and the bottom plate are connected in a buckled mode through the limiting buckles and the installation holes, the fixing support has the advantages of being simple in structure, convenient to install and reliable in connection, and the loosening and falling-off problems in a traditional fixing mode are avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, and in particular to a tightly wound coil and an electromagnetic heating device. Background Technology

[0002] With the continuous development of electromagnetic heating technology, tightly wound coils are being used more and more widely in various household appliances. However, traditional methods of fixing tightly wound coils have many shortcomings.

[0003] Currently, common methods for fixing aluminum plates to coil supports mostly involve bolt connections or direct adhesive bonding to the substrate. While these methods achieve a certain degree of support fixation, they have many limitations. For example, bolt connections increase the complexity and weight of the structure and are prone to loosening; adhesive connections are limited by the properties of the adhesive and are difficult to maintain a stable fixation effect in high-temperature or humid environments. Utility Model Content

[0004] The present invention aims to provide a densely wound coil disk that is superior to the prior art.

[0005] According to a first aspect embodiment of the present invention, a tightly wound coil disk includes:

[0006] An insulating heat insulation board, with an electromagnetic coil connected to its upper surface, and a positioning hole provided in the center of the insulating heat insulation board;

[0007] A fixed bracket has a central flange and a boundary flange at its center and edge, respectively. The central flange passes through the positioning hole and fits tightly with the positioning hole. The central flange and the boundary flange together form an accommodating space for placing the insulating heat insulation board.

[0008] The magnetic core is provided in multiple quantities, and the bottom surface of the fixing bracket is provided with multiple receiving slots, and each magnetic core is connected to the corresponding receiving slot;

[0009] The base plate has multiple sets of mounting holes, and the fixing bracket has at least two limiting buckles. Each limiting buckle is connected to the corresponding mounting hole, and the magnetic core is located between the fixing bracket and the base plate.

[0010] The tightly wound coil disc according to the embodiments of this utility model has at least the following beneficial effects: Since the fixed bracket has a central flange, the insulating heat insulation plate can be positioned and installed in the accommodating space, and the boundary flange is used to protect the insulating heat insulation plate and the electromagnetic coil to improve the overall strength; In addition, during assembly, the fixed bracket and the base plate are fastened together by limiting buckles and mounting holes, which has the characteristics of simple structure, convenient installation and reliable connection, which can effectively avoid the loosening and falling off problems in traditional fixing methods, and meet the modular design concept, making it more convenient and quick when maintenance or replacement of parts is required.

[0011] According to some embodiments of this utility model, all the limiting buckles are circumferentially distributed on the fixed bracket, and all the mounting holes are circumferentially distributed on the base plate. This arrangement ensures that the mounting positions of the fixed bracket and the base plate are not limited to a single point, thereby improving assembly efficiency.

[0012] According to some embodiments of this utility model, in order to further improve the connection strength between the fixed bracket and the base plate, each of the limiting buckles is provided with a through hole, and the base plate is provided with a pressure tongue that passes through the through hole. When the pressure tongue passes through the through hole of the limiting buckle, it is bent to fit against the limiting buckle, thereby realizing the interlocking between the fixed bracket and the base plate.

[0013] According to some embodiments of the present invention, in order to provide a better positioning effect, the edge of the insulating heat insulation plate is tightly fitted with the boundary flange.

[0014] According to some embodiments of this utility model, since an electromagnetic coil generally has two leads, in order to facilitate fixing the two leads of the electromagnetic coil, both the insulating heat insulation plate and the fixing bracket are provided with wire holes. The bottom surface of the fixing bracket is provided with a lead channel communicating with the wire holes. The fixing bracket is provided with a lower wire hook communicating with the lead channel. The fixing bracket is provided with an upper wire hook communicating with the accommodating space.

[0015] According to some embodiments of the present invention, the central flange extends toward the base plate, and the base plate is provided with a bottom hole that matches the central flange, so that the base plate can be positioned and installed on the fixed bracket.

[0016] According to some embodiments of this utility model, the central flange is provided with a mounting position, and a detection unit is connected to the mounting position. The detection unit includes at least a temperature sensing element. The temperature sensing element has a real-time temperature measurement function to prevent overheating due to circuit failure.

[0017] According to some embodiments of this utility model, the fixing bracket is provided with multiple weight-reducing holes, and the insulating heat-insulating plate and the base plate are connected through the weight-reducing holes. The setting of the weight-reducing holes not only reduces the weight of the fixing bracket and saves costs, but also helps to conduct the heat generated by the electromagnetic coil to the base plate through the air, thereby improving the heat dissipation effect.

[0018] According to some embodiments of the present invention, the base plate is provided with multiple heat dissipation holes to facilitate heat dissipation of the base plate.

[0019] An electromagnetic heater according to a second aspect embodiment of the present invention includes:

[0020] shell;

[0021] The aforementioned closely wound coil is installed inside the housing.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the tightly wound coil disk provided in an embodiment of the present utility model;

[0025] Figure 2 yes Figure 1 An exploded three-dimensional view of the densely wound coil shown.

[0026] Figure 3 yes Figure 1 A top view of the densely wound coil shown;

[0027] Figure 4 yes Figure 1 The image shows a bottom view of the tightly wound coil behind the hidden base plate.

[0028] Figure 5 yes Figure 3 The diagram shows a cross-sectional view of the tightly wound coil along section line AA.

[0029] In the attached diagram: 100-Electromagnetic coil, 200-Insulating heat shield, 300-Fixing bracket, 400-Magnetic core, 500-Base plate, 510-Heat dissipation hole, 110-Gap, 210-Positioning hole, 310-Center flange, 320-Boundary flange, 301-Accommodation space, 330-Accommodation groove, 600-Limiting buckle, 520-Mounting hole, 610-Through hole, 530-Pressure tongue, 340-Wire hole, 302-Leading wire channel, 350-Lower hanging wire buckle, 360-Upper hanging wire buckle, 540-Bottom hole, 311-Mounting position, 370-Weight reduction hole. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] like Figures 1 to 3As shown, according to a first aspect embodiment of the present invention, the tightly wound coil includes, from top to bottom, an electromagnetic coil 100, an insulating heat insulation plate 200, a fixing bracket 300, a magnetic core 400, and a base plate 500, wherein the base plate 500 can be an aluminum plate or a plastic plate. When the tightly wound coil is used in an embedded electromagnetic heating appliance, the base plate 500 serves as the carrier of the tightly wound coil and as the mounting body for the entire machine; that is, the tightly wound coil and the microcrystalline plate of the entire machine are connected through the base plate 500. In this embodiment, the base plate 500 can be an aluminum plate, which is made of lightweight, high-strength aluminum alloy material, has good thermal conductivity and corrosion resistance, and provides a stable heat dissipation foundation for the coil. The structural design of the aluminum plate fully considers heat dissipation requirements, and improves the overall heat dissipation efficiency by optimizing the plate thickness and opening multiple heat dissipation holes 510. The aluminum plate also has good processability and plasticity, and can meet various complex shape and size requirements.

[0035] In addition, the insulation and heat insulation board 200 can be made of mica board, which is made by bonding mica paper with silicone water, heating and pressing. The mica content is about 90% and the silicone water content is about 10%, which is an excellent high temperature resistant insulation material.

[0036] On the other hand, the electromagnetic coil 100 is formed by tightly winding the coil around the upper surface of the insulating heat insulation plate 200 to form a multi-ring disc-shaped structure. The coil is wound using a combination of continuous tight winding and intermittent winding to improve heating efficiency and the uniformity of heat distribution. The shape of the electromagnetic coil 100 can be circular, square, elliptical, racetrack-shaped, etc., depending on the function and performance of the product. In this embodiment, the electromagnetic coil 100 is fixed to the upper surface of the insulating heat insulation plate 200 with silicone sealant or silicone adhesive.

[0037] In order to achieve rapid positioning of the electromagnetic coil 100, there is a gap 110 at the center of the electromagnetic coil 100, while the insulating heat insulation plate 200 has a positioning hole 210 pre-drilled at its center during production. During assembly, workers can quickly position the electromagnetic coil 100 and the insulating heat insulation plate 200 by aligning the gap 110 with the positioning hole 210.

[0038] like Figure 2 As shown, the fixed bracket 300 has a central flange 310 and a boundary flange 320 at its center and edge, respectively. The central flange 310 and the boundary flange 320 together form an accommodating space 301. This accommodating space 301 is recessed downwards and is used to place the insulating heat insulation plate 200 and the electromagnetic coil 100. The insulating heat insulation plate is fixed in the accommodating space 301 with silicone sealant or silicone adhesive. The size of the central flange 310 is similar to the size of the positioning hole 210, so that the insulating heat insulation plate 200 can be positioned and installed in the accommodating space 301 through the tight fit between the positioning hole 210 and the central flange 310.

[0039] The boundary flange 320 is used to protect the insulating heat insulation plate 200 and the electromagnetic coil 100 to improve overall strength. Furthermore, the dimensions of the boundary flange 320 are similar to the edge dimensions of the insulating heat insulation plate 200, allowing the insulating heat insulation plate 200 to be positioned and installed within the receiving space 301 through a tight fit between its edge and the boundary flange 320. This eliminates any gaps between the insulating heat insulation plate 200 and the receiving space 301, thereby preventing collisions or dust accumulation.

[0040] In this embodiment, the fixing bracket 300 can be made of high-strength, low-thermal-expansion-coefficient PET material. This choice ensures that the fixing bracket 300 can maintain excellent mechanical properties and thermal stability under extreme environmental conditions.

[0041] like Figure 4 As shown, the bottom surface of the fixed bracket 300 is provided with multiple receiving slots 330. Each receiving slot 330 generally accommodates only one magnetic core 400, but the number of receiving slots 330 can be more than the number of magnetic cores 400. That is to say, this embodiment allows for the absence of magnetic cores 400 within the receiving slots 330. For example, the number of magnetic cores 400 can be selected from six to thirty, which are fixed in the receiving slots 330 by silicone sealant or silicone adhesive. The magnetic cores 400 do not directly contact the electromagnetic coil 100 to prevent short circuits. The layout of the magnetic cores 400 needs to be designed according to the size of the electromagnetic coil 100 and the distribution of magnetic lines of force. For a disc-shaped electromagnetic coil 100, the magnetic cores 400 radiate outward from the center of the electromagnetic coil 100. Multiple magnetic cores 400 are arranged in an indexed manner, and the specific number depends on the size of the electromagnetic coil 100 and the distribution of magnetic lines of force. Since the area above the electromagnetic coil 100 is the heating zone, while the area below it is the non-heating zone, the magnetic lines of force located below it are wasted energy. They not only consume power but also easily damage other electrical components. The function of the magnetic core 400 is to shield the downward-facing magnetic lines of force, enhance the electromagnetic induction effect in other directions, improve the inductance and Q value of the electromagnetic coil 100, and thus optimize the working performance of the electromagnetic heating appliance.

[0042] like Figure 2 and Figure 5As shown, the side of the fixed bracket 300 is provided with at least two limiting buckles 600. In this embodiment, there are four limiting buckles 600, which are evenly distributed around the circumference of the fixed bracket 300. Correspondingly, the base plate 500 is provided with four sets of mounting holes 520, which are evenly distributed around the circumference of the base plate 500. The positions of the four sets of mounting holes 520 correspond one-to-one with the positions of the four limiting buckles 600. Each limiting buckle 600 is connected to the corresponding mounting hole 520 to realize the installation of the fixed bracket 300 and the base plate 500. Due to the setting positions of the limiting buckles 600 and the mounting holes 520, the installation position of the fixed bracket 300 and the base plate 500 is not limited to one point. That is, after the fixed bracket 300 is rotated by a certain angle, it can still be connected to the base plate 500 without the need for mistaken identification, thereby improving assembly efficiency.

[0043] Specifically, each limiting buckle 600 has three flexible triangular claws, all facing downwards. Correspondingly, each set of mounting holes 520 consists of three locking holes. Each limiting buckle 600 is connected to the corresponding locking hole via three triangular claws. Due to the characteristics of the limiting buckle 600, it can be interference-fitted into the mounting hole 520 and, after assembly, is fastened to the base plate 500 via the triangular claws, thus achieving quick installation of the fixing bracket 300 and the base plate 500. The assembly process of the fixing bracket 300 and the base plate 500 is simple. Once assembled, the fixing bracket 300 and the base plate 500 are inseparable without external force. It features a simple structure, convenient installation, and reliable connection, effectively avoiding the loosening and detachment problems of traditional fixing methods, and meeting the modular design concept, making maintenance or component replacement more convenient and quick.

[0044] To further enhance the connection strength between the fixed bracket 300 and the base plate 500, each limiting buckle 600 is provided with a through hole 610, and the base plate 500 is provided with a pressure tongue 530 passing through the through hole 610. Since the pressure tongue 530 is processed based on the base plate 500, it is made of the same material as the base plate 500. In this embodiment, the pressure tongue 530 is made of aluminum, which has good machinability and plasticity. After passing through the through hole 610 of the limiting buckle 600, the pressure tongue 530 can be bent to fit against the limiting buckle 600, thereby achieving interlocking between the fixed bracket 300 and the base plate 500.

[0045] like Figure 3 and Figure 4As shown, since the electromagnetic coil 100 generally has two leads, both the insulating heat insulation plate 200 and the fixing bracket 300 are provided with wire holes 340 to facilitate fixing the two leads of the electromagnetic coil 100. The wire holes 340 are located close to the central flange 310. The bottom surface of the fixing bracket 300 is provided with a lead channel 302 communicating with the wire holes 340. The fixing bracket 300 is provided with a lower hanging wire buckle 350 communicating with the lead channel 302, and the fixing bracket 300 is provided with an upper hanging wire buckle 360 ​​communicating with the accommodating space 301. One end of the lead of the electromagnetic coil 100 passes through the wire hole 340 and the lead channel 302 and is wound around the lower hanging wire buckle 350; the other end of the lead of the electromagnetic coil 100 passes through the accommodating space 301 and is wound around the upper hanging wire buckle 360. This limits the two leads of the electromagnetic coil 100 and effectively separates the distance between the two leads to avoid adverse effects.

[0046] like Figure 2 As shown, in some embodiments of this utility model, the central flange 310 of the fixed bracket 300 extends toward the base plate 500, and the base plate 500 is provided with a bottom hole 540 matching the central flange 310, so that the base plate 500 can be positioned and installed on the fixed bracket 300. Since a detection unit needs to be installed at the center of the electromagnetic coil 100, a corresponding hole needs to be reserved on the base plate 500. The central flange 310 of the fixed bracket 300 is provided with a mounting position 311, and a detection unit (not shown in the figure) is connected to the mounting position 311. The detection unit includes at least a temperature measuring element, which has the function of real-time temperature measurement to prevent overheating due to circuit failure.

[0047] In addition, the detection unit includes other sensors, such as a humidity sensor, to detect the internal humidity. When the humidity exceeds a set value, a dehumidifying fan is activated to remove moisture, preventing short circuits in the internal circuitry due to excessive humidity.

[0048] In some embodiments of this utility model, the fixed bracket 300 is provided with a plurality of weight-reducing holes 370, and the insulating heat insulation plate 200 and the base plate 500 are connected through the weight-reducing holes 370. The setting of the weight-reducing holes 370 can not only reduce the weight of the fixed bracket 300 and save costs, but also help to conduct the heat generated by the electromagnetic coil 100 to the base plate 500 through the air, thereby improving the heat dissipation effect.

[0049] It is understood that, although the insulating heat insulation plate 200 is circular in this embodiment, the fixing bracket 300 and the base plate 500 are also circular in shape. However, in some other embodiments, the insulating heat insulation plate 200 may also be rectangular, hexagonal, or other shapes. In this case, the fixing bracket 300 and the base plate 500 are selected to have the same shape as the insulating heat insulation plate 200, and are not limited to the above embodiments.

[0050] An electromagnetic heater according to a second aspect of the present invention includes a tightly wound coil according to the first aspect of the present invention, and a housing (not shown in the drawings), the upper surface of which is a heating surface for supporting the heating vessel.

[0051] Since the electromagnetic heating appliance adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tightly wound coil disk, characterized in that, include: An insulating heat insulation board (200) has an electromagnetic coil (100) connected to its upper surface, and a positioning hole (210) is provided in the center of the insulating heat insulation board (200); A fixed bracket (300) has a central flange (310) and a boundary flange (320) at its center and edge, respectively. The central flange (310) passes through the positioning hole (210) and is tightly fitted with the positioning hole (210). The central flange (310) and the boundary flange (320) together form an accommodating space (301), which is used to place the insulating heat insulation board (200). The magnetic core (400) is provided in multiple quantities. The bottom surface of the fixed bracket (300) is provided with multiple receiving slots (330). Each magnetic core (400) is connected to the corresponding receiving slot (330). The base plate (500) is provided with multiple sets of mounting holes (520), the fixed bracket (300) is provided with at least two limiting buckles (600), each of the limiting buckles (600) is connected to the corresponding mounting hole (520), and the magnetic core (400) is located between the fixed bracket (300) and the base plate (500).

2. The tightly wound coil disk according to claim 1, characterized in that: All the limiting buckles (600) are evenly distributed around the fixed bracket (300), and all the mounting holes (520) are evenly distributed around the base plate (500).

3. The tightly wound coil disc according to claim 1 or 2, characterized in that: Each of the limiting buckles (600) is provided with a through hole (610), and the base plate (500) is provided with a pressure tongue (530) that passes through the through hole (610).

4. The tightly wound coil disc according to claim 1, characterized in that: The edge of the insulating heat insulation board (200) fits tightly with the boundary flange (320).

5. The tightly wound coil disk according to claim 1, characterized in that: Both the insulating heat insulation board (200) and the fixed bracket (300) are provided with wire holes (340). The bottom surface of the fixed bracket (300) is provided with a wire lead channel (302) communicating with the wire hole (340). The fixed bracket (300) is provided with a lower wire hook (350) communicating with the wire lead channel (302). The fixed bracket (300) is provided with an upper wire hook (360) communicating with the accommodating space (301).

6. The tightly wound coil disk according to claim 1, characterized in that: The central flange (310) extends toward the base plate (500), and the base plate (500) is provided with a bottom hole (540) matching the central flange (310).

7. The tightly wound coil disc according to claim 1 or 6, characterized in that: The central flange (310) is provided with a mounting position (311), and a detection unit is connected to the mounting position (311). The detection unit includes at least a temperature measuring element.

8. The tightly wound coil disk according to claim 1, characterized in that: The fixed bracket (300) is provided with a plurality of weight-reducing holes (370), and the insulating heat insulation plate (200) and the base plate (500) are connected through the weight-reducing holes (370).

9. The tightly wound coil disk according to claim 1, characterized in that: The base plate (500) is provided with multiple heat dissipation holes (510).

10. An electromagnetic heating appliance, characterized in that, include: shell; The closely wound coil as described in any one of claims 1 to 9, wherein the closely wound coil is installed inside the housing.

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