Coil panel and induction cooker
By designing a coil disk including a base, an insulating ring and a coil assembly, the thermal efficiency problem caused by the induction cooker coil and crystal panel gap is solved, and more efficient heating and better thermal insulation are achieved.
Patent Information
- Application Number
- CN202420425476.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-05
AI Technical Summary
There is a gap between the coil and the crystal plate of the existing induction cooker, which causes magnetic lines to diffuse and low thermal efficiency.
Design a coil disk, including a base, an insulating ring and a coil assembly. The insulating ring is provided on the base to form a mounting groove, and the coil assembly is provided in the groove, including a bracket, a magnetic strip and a coil. The height of the insulating ring is greater than the height of the coil, the top contacts the crystal panel, seals the gap between the coil and the crystal panel, and blocks the diffusion of magnetic lines.
It improves the thermal efficiency of the induction cooker, concentrates the heating of the pot by magnetic lines, enhances the heat insulation effect, and improves the safety of the induction cooker.
Smart Images
Figure CN222484954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic ovens, in particular to a coil disk and an electromagnetic oven. Background Art
[0002] Induction cookers mainly use the principle of electromagnetic induction to generate eddy currents at the bottom of iron pots, thereby generating a large amount of heat energy to directly heat the pot body quickly. As a new type of kitchen appliance, it quickly became popular due to its advantages of no open flame and high thermal efficiency.
[0003] There is a certain distance between the coil and the crystal plate of the induction cooker currently on the market, which causes the magnetic lines of force generated by the coil disk to spread from the gap between the coil and the crystal plate to the surrounding area, thereby reducing the thermal efficiency of the induction cooker. Utility Model Content
[0004] The main purpose of the utility model is to provide a coil disk, aiming at improving the thermal efficiency of the induction cooker.
[0005] To achieve the above-mentioned purpose, the coil disk proposed by the utility model comprises:
[0006] Base;
[0007] a heat-insulating ring, the heat-insulating ring being arranged on the base so as to enclose a mounting groove between the heat-insulating ring and the base; and
[0008] A coil assembly is arranged in the mounting groove, and the coil assembly includes a bracket, a magnetic strip and a coil arranged on the bracket, the bracket is connected to the base, the magnetic strip is arranged between the bracket and the bottom of the mounting groove, the height of the insulation ring is greater than the height of the coil, and the top of the insulation ring is used for the crystal plate of the induction cooker to abut.
[0009] Optionally, the ring wall of the insulation ring is provided with a plurality of notch slots, and the outer edge of the bracket is provided with a mounting ear corresponding to each notch slot, and the mounting ear is clamped in the notch slot to fix the insulation ring between the bracket and the base.
[0010] Optionally, the bracket is snap-connected to the base.
[0011] Optionally, the mounting ear has a clamping section extending outwardly from the outer circumferential surface of the thermal insulation ring, the clamping section is provided with a clamping hole, the depth direction of the clamping hole extends in the height direction of the thermal insulation ring, the base is provided with a clamping column corresponding to the clamping hole, and the clamping column is clamped in the clamping hole.
[0012] Optionally, a limiting groove is provided on the bottom surface of the bracket corresponding to each of the magnetic strips, the length of the limiting groove extends radially toward the thermal insulation ring, and the magnetic strip is placed in the limiting groove; and / or
[0013] The magnetic strip is bonded to the bracket by silicone adhesive.
[0014] Optionally, a winding groove is provided on the top of the bracket, and the coil is wound in the winding groove; and / or
[0015] The coil is bonded to the bracket by silicone adhesive.
[0016] Optionally, a wire clamping groove is provided on the bottom surface of the bracket, and the length of the wire clamping groove extends radially toward the heat insulation ring for allowing the wire harness to pass through.
[0017] Optionally, the coil disk further includes a thermal insulation pad, and the thermal insulation pad is arranged on the top of the bracket.
[0018] Optionally, the base is made of aluminum; and / or
[0019] The thermal insulation pad is made of mica.
[0020] The utility model also provides an induction cooker, comprising the coil disk.
[0021] The above coil disk has at least the following beneficial effects:
[0022] The technical solution of the utility model adopts a base, a thermal insulation ring and a coil assembly. The thermal insulation ring is arranged on the base to form a mounting groove between the thermal insulation ring and the base; the coil assembly is arranged in the mounting groove, and the coil assembly includes a bracket, a magnetic strip and a coil arranged on the bracket, the bracket is connected to the base, the magnetic strip is arranged between the bracket and the bottom of the mounting groove, the height of the thermal insulation ring is greater than the height of the coil, and the top of the thermal insulation ring is used for the crystal plate of the induction cooker to abut. Specifically, the coil assembly is arranged in the mounting groove, that is, the coil is arranged in the mounting groove. Since the height of the thermal insulation ring is greater than the height of the coil, and the top of the thermal insulation ring is in contact with the crystal plate, the peripheral gap between the coil and the crystal plate is blocked. Therefore, when the induction cooker is running, the thermal insulation ring arranged at the outer edge of the coil will block the magnetic lines of force generated by the coil from diffusing around, so that the magnetic lines of force of the coil are emitted upward, thereby concentrating on heating the pots placed on the crystal plate, thereby improving the thermal efficiency of the induction cooker; since heat will not be transferred beyond the periphery of the thermal insulation ring, it can prevent the material outside the thermal insulation ring or the periphery of the induction cooker from being heated due to magnetic field induction, thereby achieving a very good thermal insulation effect, thereby improving the safety of the induction cooker. It can be seen that the technical solution of the utility model can improve the thermal efficiency of the induction cooker. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 This is a schematic structural diagram of an embodiment of the coil disk of the utility model;
[0025] Figure 2 It is a schematic diagram of the exploded structure of the coil disk of the utility model;
[0026] Figure 3 This is a first cross-sectional structural schematic diagram of the coil disk of the utility model;
[0027] Figure 4 This is a first cross-sectional structural schematic diagram of the coil disk of the utility model;
[0028] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.
[0029] Description of Figure Numbers:
[0030] Label name Label name 100 Base 313 Limit slot 110 Card column 314 Winding slot 200 Insulation ring 315 Cable trough 210 Notch card slot 320 Magnetic stripe 300 Coil assembly 330 Coil 310 Bracket 400 Insulation pad 311 Mounting ears 500 Wiring 312 Card hole
[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0036] The induction cooker includes a crystal plate, a bottom shell and a coil disk. The base of the coil disk is connected to the bottom shell, and the crystal plate is arranged above the coil disk. Since there is a certain distance between the coil and the crystal plate, it is easy for the magnetic lines of force generated by the coil disk to spread to the surroundings from the gap between the coil and the crystal plate. The heating pot is placed on the crystal plate.
[0037] The utility model provides a coil disk.
[0038] Reference Figures 1 to 3 In one embodiment of the utility model, the coil disk includes a base 100, an insulation ring 200 and a coil assembly 300. The insulation ring 200 is arranged on the base 100 to form a mounting groove between the insulation ring 200 and the base 100; the coil assembly 300 is arranged in the mounting groove, and the coil assembly 300 includes a bracket 310, a magnetic strip 320 and a coil 330 arranged on the bracket 310. The bracket 310 is connected to the base 100, and the magnetic strip 320 is arranged between the bracket 310 and the bottom of the mounting groove. The height of the insulation ring 200 is greater than the height of the coil 330, and the top of the insulation ring 200 is used for the crystal plate of the induction cooker to abut.
[0039] Specifically, the coil assembly 300 is arranged in the mounting groove, that is, the coil 330 is arranged in the mounting groove. Since the height of the insulation ring 200 is greater than the height of the coil 330, and the top of the insulation ring 200 is in contact with the crystal plate, thereby blocking the peripheral gap between the coil 330 and the crystal plate, therefore, when the induction cooker is running, the insulation ring 200 arranged at the outer edge of the coil 330 will block the magnetic lines of force generated by the coil 330 from diffusing around, so that the magnetic lines of force of the coil are emitted upward, thereby concentrating on heating the pots placed on the crystal plate, thereby improving the thermal efficiency of the induction cooker; since heat will not be transferred beyond the periphery of the insulation ring, it can prevent the material outside the insulation ring 200 or the periphery of the induction cooker from being heated due to magnetic field induction, thereby achieving a very good insulation effect, thereby improving the safety of the induction cooker. It can be seen that the technical solution of the utility model can improve the thermal efficiency of the induction cooker.
[0040] In some installation methods, the ring wall of the insulation ring 200 is provided with a plurality of notched slots 210, and the outer edge of the bracket 310 is provided with a mounting lug 311 corresponding to each notched slot 210, and the mounting lug 311 is clamped in the notched slot 210 to fix the insulation ring 200 between the bracket 310 and the base 100; it can be understood that the mounting lug 311 is clamped in the notched slot 210, and the bracket 310 is connected to the base 100, so that the circumferential and circumferential displacement of the insulation ring 200 can be limited. Since the coil assembly 300 is arranged in the mounting groove, the inner diameter of the insulation ring 200 is equal to the outer diameter of the bracket 310. Therefore, the coil assembly can limit the radial displacement of the insulation ring 200. It can be seen that the present scheme can fix the insulation ring 200 through the base 100 and the bracket 310, and there is no need to fix the insulation ring 200 separately, thereby reducing the assembly steps and greatly improving the installation efficiency of the coil disk. Of course, the present invention is not limited thereto, and in other embodiments, the heat insulation ring 200 may also be directly engaged with the base 100 .
[0041] Furthermore, the bracket 310 is snap-fitted to the base 100. This is because the snap-fit connection method is easy to install and disassemble, and can be disassembled without tools. No additional materials such as screw fasteners are required during the installation process, so the snap-fit is low-cost. The installation process of the snap-fit is very simple, generally only a pushing action is required, and no rotational movement or product positioning work before installation is required. It is quick and simple; therefore, the use of the snap-fit connection method can improve the installation efficiency of the bracket 310 and the base 100, and can also reduce the installation cost of the bracket 310 and the base 100. Of course, the utility model is not limited to this. In other embodiments, the bracket 310 and the base 100 can also be connected with screws.
[0042] Optionally, the mounting ear 311 has a clamping section extending outwardly from the outer peripheral surface of the insulation ring 200, and the clamping section is provided with a clamping hole 312, and the hole depth direction of the clamping hole 312 extends in the height direction of the insulation ring 200, and the base 100 is provided with a clamping column 110 corresponding to the clamping hole 312, and the clamping column 110 is clamped in the clamping hole 312. It can be understood that during installation, it is only necessary to align the clamping hole 312 with the clamping column 110. At this time, the mounting ear 311 is also aligned with the notched clamping groove 210, and the bracket 310 is pushed in the direction close to the clamping column 110, and the clamping column 110 can be clamped into the clamping hole 312, thereby completing the clamping connection between the bracket 310 and the base 100. In this way, the crystal plate can be installed, and the crystal plate can limit the position of the bracket 310 from the side of the bracket 310 away from the bottom plate. Therefore, this installation method can save installation steps and is conducive to improving assembly efficiency. Of course, the utility model is not limited to this. In other embodiments, the mounting ear 311 has a clamping section extending outward from the outer peripheral surface of the insulation ring 200, and the clamping section is provided with a clamping hole. The hole depth direction of the clamping hole extends toward the height direction of the insulation ring 200. The base 100 is provided with an elastic clamping protrusion corresponding to the clamping hole. The elastic clamping protrusion includes an elastic arm provided on the base 100 and a clamping protrusion provided at the free end of the elastic arm. When the elastic clamping protrusion passes through the clamping hole, the elastic arm elastically avoids, so that the clamping protrusion is clamped with the side of the clamping section away from the bottom plate.
[0043] Reference Figure 4 and Figure 5 Optionally, in one embodiment, a limiting groove 313 is provided on the bottom surface of the bracket 310 corresponding to each magnetic strip 320, and the length of the limiting groove 313 extends radially toward the thermal insulation ring 200, and the magnetic strip 320 is placed in the limiting groove 313. It can be understood that the limiting groove 313 can limit the position of the magnetic strip 320, which can not only make the assembly easier, but also increase the stability of the installation of the magnetic strip 320.
[0044] Furthermore, in the second embodiment, the magnetic strip 320 is bonded to the bracket 310 by silicone adhesive. This is because the bonding method is simple in process and low in manufacturing cost, which can reduce the installation cost of the coil 330. In addition, silicone adhesive has excellent adhesion and strong bonding force. Silicone adhesive not only does not require primer, but also can form a strong bonding force with the material to be bonded. Moreover, the bonding force will not become brittle or fall off due to changes in time and use conditions, which can increase the connection stability between the magnetic strip 320 and the bracket 310. Secondly, silicone adhesive has good aging stability and strong weather resistance, and can still maintain good performance under extreme temperature and humidity conditions, which can increase the connection life of the magnetic strip 320 and the bracket 310. Moreover, silicone adhesive can resist the influence of natural environmental factors such as sunlight, rain, oxidation, etc., and is not easy to age, crack, or deform even if exposed to the natural environment for a long time. Therefore, practical silicone adhesive can increase the practical life of the coil disk. Most importantly, silicone adhesive has good electrical insulation performance and arc resistance.
[0045] In the third embodiment, the magnetic strip 320 is bonded to the limiting groove 313 by silicone adhesive, which can further increase the stability of the installation of the magnetic strip 320 .
[0046] Optionally, in one embodiment, a winding groove 314 is provided on the top of the bracket 310, and the coil 330 is wound in the winding groove 314; assembling the coil 330 through the winding groove 314 is not only convenient for assembly but also has strong structural stability.
[0047] In the second embodiment, the coil 330 is bonded to the bracket 310 by silicone adhesive. It can be understood that the bonding method is simple in process and low in manufacturing cost, which can reduce the installation cost of the coil 330, and the silicone adhesive has excellent cohesiveness and strong bonding force. Silicone adhesive not only does not require primer, but can form a strong bonding force with the material to be bonded, and the bonding force will not become brittle or fall off due to changes in time and use conditions, which can increase the connection stability of the coil 330 and the bracket 310. Secondly, silicone adhesive has good aging stability and strong weather resistance, and can still maintain good performance under extreme temperature and humidity conditions, so that the connection life of the coil 330 and the bracket 310 can be improved. Moreover, silicone adhesive can resist the influence of natural environmental factors such as sunlight, rain, oxidation, etc., and is not easy to age, crack, and deform when exposed to the natural environment for a long time. Therefore, practical silicone adhesive can increase the practical life of the coil disk. Most importantly, silicone adhesive has good electrical insulation performance and arc resistance.
[0048] In the third embodiment, the coil 330 is bonded in the winding groove 314 by silicone adhesive.
[0049] Optionally, a wire clamping groove 315 is provided on the bottom surface of the bracket 310, and the length of the wire clamping groove 315 extends radially toward the insulation ring 200 for the wire harness 500 to pass through; this can improve the orderliness of the routing of the wire harness 500 and facilitate the operator's inspection and installation.
[0050] Optionally, the coil disk also includes a thermal insulation pad 400, which is arranged on the top of the bracket 310; the thermal insulation pad 400 can not only play a good thermal insulation effect, so that the coil disk can be protected by the thermal insulation pad 400, but the thermal insulation pad 400 can also be used to cover the top opening of the winding groove 314 to achieve a waterproof effect. When external water accidentally flows into the interior of the whole machine, due to the shielding effect of the thermal insulation pad 400, water can be prevented from leaking from the gap between the coil 330 and the bracket 310 and affecting the circuit board below.
[0051] Optionally, the base 100 is made of aluminum; this is because aluminum has good heat dissipation and shielding functions. During electromagnetic heating, the aluminum plate can shield the magnetic lines of force to prevent heating of the metal casing of the induction cooker or electromagnetic heating appliance, thereby improving the safety of the coil disk.
[0052] The material of the heat insulation pad 400 is configured as mica material; this is because mica material has good heat insulation effect and improves thermal efficiency. Of course, the utility model is not limited to this. In other embodiments, other materials with better heat insulation effect can also be used. The material of the heat insulation pad 400 is not limited here.
[0053] Optionally, the material used for the heat insulation ring 200 is a mixture of various materials such as silicon dioxide, vermiculite, fiber, silicon powder, silicon carbide, etc. in proportion, which has a very good heat insulation effect, a temperature resistance of more than 800° C., and a very low cost.
[0054] Optionally, the base 100 is fixed to the bottom shell of the induction cooker by means of screws or springs plus buckles.
[0055] The utility model also proposes an induction cooker, which includes a coil disk. The specific structure of the coil disk refers to the above embodiment. Since the induction cooker adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.
[0056] Furthermore, the induction cooker also includes a crystal plate and a bottom shell. The entire coil disk is fixed to the bottom shell by means of springs and clips. The crystal plate is arranged above the coil disk. Due to the elastic restoring force of the spring, the coil disk has a tendency to move toward the crystal plate. Even if there is a tolerance in the assembly gap, or the coil disk of similar model can automatically adjust the height through the spring to ensure that the insulation ring and the crystal plate can achieve a close fit.
[0057] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A coil disk, characterized in that: include: Base; A heat-insulating ring, the heat-insulating ring being arranged on the base so as to form a mounting groove between the heat-insulating ring and the base; as well as A coil assembly is arranged in the mounting groove, and the coil assembly includes a bracket, a magnetic strip and a coil arranged on the bracket, the bracket is connected to the base, the magnetic strip is arranged between the bracket and the bottom of the mounting groove, the height of the insulation ring is greater than the height of the coil, and the top of the insulation ring is used for the crystal plate of the induction cooker to abut.
2. The coil disk according to claim 1, characterized in that The ring wall of the heat-insulating ring is provided with a plurality of notched slots, and the outer edge of the bracket is provided with a mounting lug corresponding to each notched slot, and the mounting lug is clamped in the notched slot to fix the heat-insulating ring between the bracket and the base.
3. The coil disk according to claim 2, characterized in that The bracket is clamped with the base.
4. The coil disk according to claim 3, characterized in that The mounting ear has a clamping section extending outwardly from the outer peripheral surface of the insulation ring, the clamping section is provided with a clamping hole, the hole depth direction of the clamping hole extends toward the height direction of the insulation ring, the base is provided with a clamping column corresponding to the clamping hole, and the clamping column is clamped in the clamping hole.
5. The coil disk according to claim 1, characterized in that A limiting groove is provided on the bottom surface of the bracket corresponding to each magnetic strip, the length of the limiting groove extends radially toward the heat insulation ring, and the magnetic strip is placed in the limiting groove; and / or The magnetic strip is bonded to the bracket by silicone adhesive.
6. The coil disk according to claim 5, characterized in that A winding groove is provided on the top of the bracket, and the coil is wound in the winding groove; and / or The coil is bonded to the bracket by silicone adhesive.
7. The coil disk according to claim 1, characterized in that A wire clamping groove is provided on the bottom surface of the bracket, and the length of the wire clamping groove extends radially toward the heat insulation ring for allowing the wire harness to pass through.
8. The coil disk according to any one of claims 1 to 7, characterized in that The coil disk also includes a heat insulation pad, which is arranged on the top of the bracket.
9. The coil disk according to claim 8, characterized in that The base is made of aluminum; and / or The thermal insulation pad is made of mica.
10. An induction cooker, characterized in that: Comprising the coil disk according to any one of claims 1 to 9.