Antimagnetic anti-interference coil panel assembly

Abstract

The utility model discloses an antimagnetic anti-interference coil panel assembly, which relates to the technical field of electromagnetic heating, and comprises a plastic panel rack, a plurality of magnetic strip grooves, a plurality of magnetic strip grooves, a plurality of magnetic strip grooves and a plurality of magnetic strip grooves, the plurality of magnetic strips are respectively arranged in the plurality of magnetic strip grooves, each magnetic strip comprises a mounting part, a first lug boss and a second lug boss, the first lug boss and the second lug boss are convexly arranged at two ends of the mounting part, and a coil mounting groove is formed between the first lug boss and the second lug boss; the coil is arranged in the coil mounting groove, the wire cross section of the coil is square, and the bottom of the coil is tightly attached to the top of the mounting part. According to the antimagnetic anti-interference coil panel assembly, the heating efficiency and the anti-interference effect are improved, and the induction magnetic field intensity is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic heating, and particularly relates to an anti-magnetic and anti-interference coil disc assembly. Background Art

[0002] An electromagnetic heating device generates an alternating magnetic field through a coil disc. When a heating object is placed on the electromagnetic heating device, eddy currents are generated in the heating object, thereby realizing electromagnetic heating. The coil disc includes a coil bracket, a coil, and a magnetic strip. The coil is wound around one side of the coil bracket, and the magnetic strip is installed on the other side of the coil bracket.

[0003] Currently, the coil and the magnetic strip are installed on both sides of the bracket, and there is a certain distance between them. At the same time, the magnetic strip has a cuboid structure, resulting in uneven electromagnetic induction intensity, and the wire cross-section of the coil is circular and cannot be closely attached. The above structures together lead to the technical problems of small magnetic flux, poor anti-interference ability, and thus affecting the heating effect. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an anti-magnetic and anti-interference coil disc assembly, aiming to provide an anti-magnetic and anti-interference coil disc assembly that improves the heating efficiency and anti-interference effect and enhances the induction magnetic field intensity.

[0005] To achieve the above purpose, the anti-magnetic and anti-interference coil disc assembly proposed by the utility model includes:

[0006] A plastic disc frame having a plurality of magnetic strip grooves distributed radially;

[0007] Magnetic strips, there are a plurality of magnetic strips respectively arranged in the plurality of magnetic strip grooves. The magnetic strip includes a mounting portion and a first protruding portion and a second protruding portion protruding from both ends of the mounting portion. A coil mounting groove is formed between the first protruding portion and the second protruding portion;

[0008] A coil arranged in the coil mounting groove, the wire cross-section of the coil is square, and the bottom of the coil is closely attached to the top of the mounting portion.

[0009] Optionally, two spaced positioning ribs are provided at the bottom of the mounting portion, and two positioning grooves are provided in the magnetic strip groove. The two positioning ribs are respectively snapped into the two positioning grooves to achieve positioning.

[0010] Optionally, the shape of the positioning rib is arc-shaped.

[0011] Optionally, the coil includes a first coil and a second coil arranged concentrically and spaced apart, and an annular gap is formed between the first coil and the second coil.

[0012] Optionally, the first coil and the second coil are formed by winding the same wire.

[0013] Optionally, the anti-magnetic and anti-interference coil disk assembly further includes a magnetic sheet, and the magnetic sheets are in plurality and evenly distributed around the annular gap.

[0014] Optionally, the magnetic sheet is in an arc shape, and the plastic rack is provided with a snap-in groove for mounting the magnetic sheet.

[0015] Optionally, an insulating layer is provided on the upper surface of the mounting portion.

[0016] The technical solution of the utility model includes a plastic disc frame, a magnetic strip and a coil. Both ends of the magnetic strip are provided with protrusions to shield the signal. The wire cross-section of the coil is square to increase the contact area. The magnetic strip and the coil are both located on the same side of the plastic disc frame to reduce the gap between the two. Due to the technical means of using wire with a square cross-section, protrusions at both ends of the magnetic strip and the coil being closely attached to the magnetic strip, the technical problems of small magnetic flux and poor anti-interference ability in the prior art that affect the heating effect are effectively solved, thereby achieving the technical effect of improving the heating efficiency and anti-interference effect and enhancing the intensity of the induced magnetic field. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the anti-magnetic and anti-interference coil disk assembly of the utility model;

[0018] Figure 2 It is a schematic diagram of the disassembled structure of the anti-magnetic and anti-interference coil disk assembly of the utility model;

[0019] Figure 3 for Figure 2 A partial enlarged view of point A;

[0020] Figure 4 It is a top view schematic diagram of the anti-magnetic and anti-interference coil disk assembly of the utility model;

[0021] Figure 5 for Figure 4 A schematic cross-sectional view along line AA;

[0022] Figure 6 It is a schematic diagram of the structure of the magnetic strip of the utility model;

[0023] Figure 7 This is a structural schematic diagram of the magnetic strip of the utility model from another perspective;

[0024] Description of Figure Numbers:

[0025] Anti-magnetic and anti-interference coil disk assembly 100; plastic disk holder 10; magnetic strip groove 11; clamping groove 12; magnetic strip 20; mounting portion 21; first protrusion 22; second protrusion 23; positioning rib 24; first coil 31; second coil 32; magnetic sheet 40. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention proposes an anti-magnetic and anti-interference coil disk assembly 100.

[0031] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0032] In an embodiment of the present utility model, as Figures 1 to 5 shown, the anti-magnetic and anti-interference coil disc assembly 100 includes a plastic disc frame 10, magnetic strips 20 and a coil. Among them, the plastic disc frame 10 has a plurality of magnetic strip grooves 11 distributed radially; there are a plurality of magnetic strips 20 which are respectively arranged in the plurality of magnetic strip grooves 11. The magnetic strip 20 includes a mounting portion 21 and a first protruding portion 22 and a second protruding portion 23 protruding from both ends of the mounting portion 21. A coil mounting groove is formed between the first protruding portion 22 and the second protruding portion 23; the coil is arranged in the coil mounting groove, the cross-section of the wire of the coil is square, and the bottom of the coil is closely attached to the top of the mounting portion 21.

[0033] It can be understood that if the magnetic strips are unevenly distributed, it will lead to uneven electromagnetic induction intensity, and thus different temperature fields will be generated in the pot body. The present utility model changes the structure of the magnetic strip 20, and a first protruding portion 22 and a second protruding portion 23 are respectively arranged at both ends of the magnetic strip 20, so that each position of the magnetic strip 20 can play a role in shielding the input signal and the output signal, reducing the input impedance, avoiding the interference of external signals on electronic products, and ensuring the normal operation of electronic products. In addition, generally the cross-section of the wire is circular and the coil and the magnetic strip 20 are respectively located on both sides of the disc frame. The present utility model makes the cross-section of the wire square by means of process extrusion. The square wire has a plane, thereby increasing its contact area with the magnetic strip 20, making the magnetic lines of force generated by the coil gather at the bottom of the pot, and improving the heating efficiency of the coil disc assembly. The magnetic strip 20 and the plastic disc frame 10 are adhesively connected by glue, and the coil is also fixed on the top of the plurality of magnetic strips 20 by glue.

[0034] The technical solution of the present utility model includes a plastic disc frame 10, magnetic strips 20 and a coil. Protruding portions are arranged at both ends of the magnetic strip 20 to play a role in shielding signals, the cross-section of the wire of the coil is square to achieve the effect of increasing the contact area, and the magnetic strip 20 and the coil are both located on the same side of the plastic disc frame 10 to reduce the gap between the two. Due to the technical means of using a wire with a square cross-section, the protrusions at both ends of the magnetic strip 20 and the coil being closely attached to the magnetic strip 20, the technical problems of small magnetic flux and poor anti-interference ability in the prior art, which in turn affect the heating effect, are effectively solved. Furthermore, the technical effects of improving the heating efficiency and anti-interference effect and enhancing the induction magnetic field intensity are achieved.

[0035] In an embodiment of the present utility model, as Figure 6 and Figure 7 shown, two spaced positioning ribs 24 are provided at the bottom of the mounting portion 21, and two positioning grooves are provided in the magnetic strip groove 11. The two positioning ribs 24 are respectively snapped into the two positioning grooves to achieve positioning. The mutually cooperating positioning ribs 24 and positioning grooves facilitate the assembly of the magnetic strip 20 and improve the positioning accuracy. When performing adhesive connection, part of the glue is placed in the positioning groove, and the positioning rib 24 extends into the positioning groove and achieves adhesive connection, which also further improves the connection stability.

[0036] In an embodiment of the present utility model, as Figure 6 and Figure 7 shown, the shape of the positioning rib 24 is arc-shaped. The shape of the positioning groove can be adapted to the shape of the positioning rib 24, or it can be a square groove. Chamfers are respectively provided on opposite sides of the top of the positioning groove to facilitate the positioning of the positioning rib 24.

[0037] In an embodiment of the present utility model, as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, the coil includes a first coil 31 and a second coil 32 that are concentrically and spaced apart. An annular gap is formed between the first coil 31 and the second coil 32. By providing two spaced coils to achieve zoned heating, it has the characteristics of reducing temperature rise and improving energy efficiency.

[0038] In an embodiment of the present utility model, as Figure 1 and Figure 2 shown, the first coil 31 and the second coil 32 are wound from the same wire material.

[0039] In an embodiment of the present utility model, as Figure 1 , Figure 2 and Figure 4 shown, the anti-magnetic and anti-interference coil disc assembly 100 further includes magnetic sheets 40. There are multiple magnetic sheets 40 and they are circumferentially and evenly distributed in the annular gap. The present utility model provides multiple magnetic sheets 40 to fill the gaps between adjacent two magnetic strips 20, further achieving the functions of signal shielding and interference reduction.

[0040] In an embodiment of the present utility model, as Figure 2 shown, the magnetic sheets 40 are arc-shaped, and the plastic disc holder 10 is provided with clamping grooves 12 for installing the magnetic sheets 40. The shape of the clamping grooves 12 is adapted to the shape of the magnetic sheets 40, and the magnetic sheets 40 are fixed in the clamping grooves 12 by glue.

[0041] In an embodiment of the present utility model, an insulating layer is provided on the upper surface of the mounting portion 21. In the prior art, generally, the effect of insulation is achieved by placing the coil and the magnetic strip on both sides of the disc holder. If the coil and the magnetic strip are on the same side, an insulating adhesive with an insulating effect is provided between the coil and the magnetic strip. Both of the above two methods make the coil and the magnetic strip have a certain distance, resulting in problems of weak induction magnetic field and low local temperature. In the present utility model, a layer of high-temperature resistant insulating layer is formed on the outer surface of the magnetic strip 20 by spraying, baking or other processing methods, so that the coil can be directly placed on the magnetic strip 20, achieving the technical effects of strong induction magnetic field and high local temperature.

[0042] The above are only alternative embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. An anti-magnetic and anti-interference coil disc assembly, characterized in that, The anti-magnetic and anti-interference coil disk assembly includes: A plastic disk frame having a plurality of magnetic strip grooves distributed radially; Magnetic strips, there are a plurality of the magnetic strips which are respectively arranged in the plurality of magnetic strip grooves. The magnetic strip includes a mounting portion and a first protruding portion and a second protruding portion protruding from both ends of the mounting portion. A coil mounting groove is formed between the first protruding portion and the second protruding portion; A coil, the coil is arranged in the coil mounting groove. The cross-section of the wire of the coil is square, and the bottom of the coil is closely attached to the top of the mounting portion.

2. The anti-magnetic and anti-interference coil disc assembly according to claim 1, characterized in that, Two spaced positioning ribs are provided at the bottom of the mounting portion, and two positioning grooves are provided in the magnetic strip groove. The two positioning ribs are respectively snapped into the two positioning grooves to achieve positioning.

3. The anti-magnetic and anti-interference coil disc assembly according to claim 2, characterized in that, The shape of the positioning rib is arc-shaped.

4. The anti-magnetic and anti-interference coil disc assembly according to claim 1, wherein, The coil includes a first coil and a second coil which are concentrically and spaced apart. An annular gap is formed between the first coil and the second coil.

5. The anti-magnetic and anti-interference coil disk assembly according to claim 4, characterized in that The first coil and the second coil are wound by the same wire.

6. The anti-magnetic and anti-interference coil disk assembly according to claim 4, wherein, The anti-magnetic and anti-interference coil disk assembly further includes magnetic sheets. There are a plurality of the magnetic sheets which are circumferentially distributed in the annular gap.

7. The anti-magnetic and anti-interference coil disc assembly according to claim 6, characterized in that, The magnetic sheet is arc-shaped, and the plastic disk frame is provided with a clamping groove for mounting the magnetic sheet.

8. The anti-magnetic and anti-interference coil disk assembly according to any one of claims 1 to 7, characterized in that, An insulating layer is provided on the upper surface of the mounting portion.

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