Annular high-frequency electromagnetic resonance device

Abstract

The utility model discloses an annular high-frequency electromagnetic resonance device, and belongs to the technical field of electromagnetic heating devices. The coil is an annular high-frequency electromagnetic heating coil which is uniformly wound on the outer wall of the hollow cylinder, the top of the hollow cylinder is provided with a skeleton ring edge which is reversely folded outwards, and the bottom of the hollow cylinder is provided with a skeleton ring edge which is reversely folded outwards; 3-10 magnetic conductive strips close to the high-frequency electromagnetic heating coil are arranged between the framework ring edge and the coil bracket; and the high-frequency electromagnetic heating metal ring is concentrically arranged in an encirclement ring of the high-frequency electromagnetic heating coil. The high-frequency electromagnetic heating kettle has the advantages that the annular high-frequency electromagnetic heating coil 4 is ingeniously used for replacing a coil panel of a planar spiral disc-shaped structure, a combination body of the non-metal kettle body and the high-frequency electromagnetic heating metal ring which are more environmentally friendly and harmless is used for replacing a traditional metal kettle body, the structure of a traditional electromagnetic heating device is eliminated, and the planar occupied space of a product is reduced; and installation of the temperature sensor and the gravity sensor is facilitated.

Description

Technical Field

[0001] The utility model relates to an electromagnetic heating device, in particular to an electromagnetic ring-shaped high-frequency electromagnetic resonance device. Background Art

[0002] The high-frequency electromagnetic device is an electromagnetic heating device composed of a coil disk and a metal pot body. It adopts the principle of magnetic field induction eddy current heating, and uses current to pass through the coil disk to generate a magnetic field. When the magnetic force in the magnetic field passes through the bottom of the metal pot body, countless small eddy currents will be generated, causing the pot body to heat up at a high speed, and then heat the food in the pot. The electromagnetic waves generated by the induction cooker when it is working are completely absorbed by the shielding layer at the bottom of the coil and the metal pot body on the top plate. For example, common electric kettles, health pots, induction cookers, etc. have obvious advantages such as energy saving, high efficiency, safety, environmental protection, cleanliness, and fast heating speed. Take the typical induction cooker heating principle as an example: the furnace surface of the induction cooker is a heat-resistant ceramic plate, and the alternating current passes through the flat plane spiral disc-shaped coil disk under the ceramic plate to generate a magnetic field. When the magnetic lines of force in the magnetic field pass through the bottom of the iron pot, stainless steel pot, etc., eddy currents are generated. When the eddy current overcomes the internal resistance of the pot body and flows, the conversion of electrical energy to thermal energy is completed. The Joule heat generated is the heat source for cooking, which makes the bottom of the pot heat up quickly to achieve the purpose of heating food. However, the coil disk with a flat spiral disc structure is usually in direct contact with food with a metal pot body such as an iron pot or a stainless steel pot. This type of electromagnetic heating device cannot solve some existing problems. The pot body has excessive heavy metals and a single heating function. It is easy to produce some adverse factors when food that is not suitable for contact with metal materials is directly in contact with these metal pot bodies. However, non-metal pot bodies made of ceramics or glass cannot be directly electromagnetically matched with the coil disk with a flat flat spiral disc structure. As a result, the application scope of the existing coil disk with a flat spiral disc structure is limited. In addition, the coil disk occupies a large area on the plane, which is not conducive to reducing the plane space occupied by the product; it is also not conducive to the installation of temperature sensors and gravity sensors. Utility Model Content

[0003] In order to solve the above-mentioned defects of the existing electromagnetic heating device composed of a metal kettle body, the utility model provides a high-frequency electromagnetic resonance device with a scientific structure.

[0004] To achieve the above purpose, the solution adopted by the utility model is:

[0005] A ring-shaped high-frequency electromagnetic resonance device comprises a coil support, a coil frame and a coil, wherein the coil frame is arranged on the coil support; the device is characterized in that: the main body of the coil frame is a hollow cylinder made of non-metallic material, the coil is a ring-shaped high-frequency electromagnetic heating coil which is evenly wound on the outer wall of the hollow cylinder, the number of turns of the high-frequency electromagnetic heating coil is 20 to 30, the top of the hollow cylinder is provided with a frame ring edge which is folded outwards, and the bottom of the hollow cylinder is provided with a frame ring edge which is folded outwards; 3 to 10 magnetic conductive strips which are close to the high-frequency electromagnetic heating coil are arranged between the frame ring edge and the coil support, and the magnetic conductive strips are evenly distributed along the circumference of the ring-shaped excitation coil.

[0006] Furthermore, a gravity sensor switch is provided on the top of the coil support, and the gravity sensor switch is located on the inner side of the bottom of the high-frequency electromagnetic heating coil.

[0007] Furthermore, a concave gravity sensing groove is provided on the top of the coil bracket, and a gravity sensing wiring groove connected to the coil bracket is provided on one side of the gravity sensing groove; a gravity sensing switch is arranged in the gravity sensing groove. Furthermore, a temperature sensing component is provided on the top of the coil bracket, and the temperature sensing component includes a truncated cone-shaped elastic and retractable silicone ring, which is located on the inner side of the bottom of the high-frequency electromagnetic heating coil, and a metal heat transfer sheet is provided on the top of the elastic and retractable silicone ring, and a temperature sensor is provided on the back of the metal heat transfer sheet.

[0008] Furthermore, a concave temperature-sensing groove is provided on the top of the coil bracket, the temperature-sensing groove is located outside the heavy-sensing groove and is concentric with the heavy-sensing groove, and a temperature-sensing wiring groove connected to the coil bracket is provided on one side of the temperature-sensing groove, and the temperature-sensing wiring groove is connected to the heavy-sensing groove; an elastic and telescopic silicone ring is arranged in the heavy-sensing groove.

[0009] Furthermore, the high-frequency electromagnetic resonance device also includes a high-frequency electromagnetic heating metal ring used in conjunction with the high-frequency electromagnetic heating coil; the high-frequency electromagnetic heating metal ring is concentrically arranged in the encirclement of the high-frequency electromagnetic heating coil, and the wall of the high-frequency electromagnetic heating metal ring is provided with a plurality of heating holes for increasing the contact area with the water in the non-metallic pot body. When in use, the high-frequency electromagnetic heating metal ring is detachably arranged on the inner wall of the lower part of the non-metallic pot body, such as a ceramic pot or a glass pot. The heating holes can increase the contact area between the water body and the high-frequency electromagnetic heating metal ring, which is conducive to accelerating heat exchange.

[0010] Working principle: It adopts the principle of magnetic field induction eddy current heating, and uses the current to pass through the annular high-frequency electromagnetic heating coil to generate a magnetic field. When the magnetic force in the magnetic field passes through the high-frequency electromagnetic heating metal ring, countless small eddy currents will be generated, so that the high-frequency electromagnetic heating metal ring itself will heat up at a high speed. The high-frequency electromagnetic heating metal ring acts as a heating element, and then heats the water in the non-metallic kettle body. Here, the high-frequency electromagnetic heating metal ring replaces the traditional metal kettle body, and the annular high-frequency electromagnetic heating coil replaces the coil disk with a planar spiral disc structure, which reduces the plane projection area of ​​the heating coil and the overall plane area of ​​the product; it gets rid of the structure of the traditional electromagnetic heating device. In addition, in terms of metal materials, the high-frequency electromagnetic heating metal ring is much less than the metal kettle body. In this way, the high-frequency electromagnetic heating metal ring can be made of precious metals that are beneficial to the human body, such as silver, titanium or silver-titanium alloy. When the non-metallic kettle body is placed, the bottom of the non-metallic kettle body presses down the gravity sensor switch and the elastic stretch silicone ring under the action of gravity, and the gravity sensor switch generates a closed signal, indicating that it is not empty burning; under the action of the rebound force of the elastic stretch silicone ring, the metal heat transfer plate is tightly attached to the bottom of the non-metallic kettle body, so that the temperature sensor reflects the temperature of the non-metallic kettle body more quickly, which is beneficial for the matching controller to control the temperature of the non-metallic kettle body.

[0011] From the above, it can be seen that the utility model has the following advantages: the ring-shaped high-frequency electromagnetic heating coil is cleverly used to replace the coil disk with a flat spiral disc structure, and the traditional metal kettle body is replaced by a combination of a more environmentally friendly and harmless non-metal kettle body and a high-frequency electromagnetic heating metal ring made of silver and titanium, thereby getting rid of the structure of the traditional electromagnetic heating device and reducing the plane space occupied by the product; it is conducive to the installation of temperature sensors and gravity sensors; the overall structure is scientific, novel, reasonably designed, and easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional diagram of a preferred embodiment of the present utility model;

[0013] Figure 2 for Figure 1 A top view of

[0014] Figure 3 A three-dimensional diagram of a metal ring heated by high-frequency electromagnetic heating;

[0015] Figure 4 is a three-dimensional diagram of a temperature sensing component;

[0016] Figure 5 for Figure 4 A longitudinal cross-sectional view of

[0017] Figure 6 Schematic diagram of a high-frequency electromagnetic heating metal ring installed on a non-metallic kettle body.

[0018] Explanation of the accompanying numbers: 1- non-metallic kettle body, 2- coil bracket, 3- coil skeleton, 4- high-frequency electromagnetic heating coil, 5- skeleton ring edge, 6- magnetic conductive strip, 7- high-frequency electromagnetic heating metal ring, 8- heating hole, 9- gravity sensor switch, 10- temperature sensing component, 11- elastic telescopic silicone ring, 12- metal heat transfer plate, 13- temperature sensor, 14- gravity sensing groove, 15- temperature sensing groove, 16- temperature sensing wiring groove, 17- hollow hole, 18- vent hole, 19- screw fixing support. DETAILED DESCRIPTION

[0019] The present invention and its beneficial technical effects are further described in detail below in conjunction with the accompanying drawings and methods.

[0020] See also Figure 1~Figure 2 The utility model preferably implements a ring-shaped high-frequency electromagnetic resonance device, comprising a coil support 2, a coil skeleton 3 and a coil, wherein the coil skeleton 3 is arranged on the coil support 2; the main body of the coil skeleton 3 is a hollow cylinder made of non-metallic material, and the coil is a ring-shaped high-frequency electromagnetic heating coil 4 that is evenly wound on the outer wall of the hollow cylinder, and the number of turns of the high-frequency electromagnetic heating coil 4 is 20 to 30 turns, and the top of the hollow cylinder is provided with a skeleton ring edge 5 that is folded outward, and the bottom of the hollow cylinder is provided with a skeleton ring edge 5 that is folded outward; 3 to 10 magnetic conductive strips 6 are arranged between the skeleton ring edge 5 and the coil support 2, and these magnetic conductive strips 6 are evenly distributed along the circumference of the ring-shaped excitation coil. The magnetic conductive strips 6 are further preferably 6; the number of turns of the high-frequency electromagnetic heating coil 4 is preferably 26.

[0021] See also Figure 2 Preferably, a gravity sensor switch 9 is provided on the top of the coil support 2, and the gravity sensor switch 9 is located inside the bottom of the high-frequency electromagnetic heating coil 4. The gravity sensor switch 9 is preferably a touch button switch. The touch button switch has the characteristics of low cost, easy acquisition, and low failure rate. It overcomes the problem that it is difficult to install the gravity sensor switch 9 on the planar coil.

[0022] See also Figure 2 Preferably, a concave gravity sensing groove 14 is provided on the top of the coil bracket 2, and a gravity sensing wiring groove connected to the coil bracket 2 is provided on one side of the gravity sensing groove 14; the gravity sensor switch 9 is arranged in the gravity sensing groove 14.

[0023] See also Figure 2 , Figure 4~Figure 5 Preferably, a temperature sensing component 10 is provided on the top of the coil bracket 2, and the temperature sensing component 10 includes a truncated cone-shaped elastic and stretchable silicone ring 11, which is located on the inner side of the bottom of the high-frequency electromagnetic heating coil 4, and a metal heat transfer sheet 12 is provided on the top of the elastic and stretchable silicone ring 11, and a temperature sensor 13 is provided on the back of the metal heat transfer sheet 12.

[0024] See also Figure 2 Preferably, a concave temperature-sensing groove 15 is provided on the top of the coil bracket 2, the temperature-sensing groove 15 is located outside the heavy-sensing groove 14 and is concentric with the heavy-sensing groove 14, a temperature-sensing wiring groove 16 connected to the coil bracket 2 is provided on one side of the temperature-sensing groove 15, and the temperature-sensing wiring groove 16 is connected to the heavy-sensing groove 14; an elastic and telescopic silicone ring 11 is arranged in the heavy-sensing groove 14.

[0025] See also Figure 3 , Figure 6 Preferably, as a matching device for the high-frequency electromagnetic heating coil 4, the high-frequency electromagnetic resonance device also includes a high-frequency electromagnetic heating metal ring 7 used in conjunction with the high-frequency electromagnetic heating coil 4; the high-frequency electromagnetic heating metal ring 7 is concentrically arranged in the encirclement of the high-frequency electromagnetic heating coil 4, and the wall of the high-frequency electromagnetic heating metal ring 7 is provided with a plurality of heating holes 8 for increasing the contact area with the water in the non-metallic kettle body 1. When in use, the high-frequency electromagnetic heating metal ring 7 is detachably arranged on the inner wall of the lower part of the non-metallic kettle body 1, such as a ceramic kettle or a glass kettle. The heating holes 8 can increase the contact area between the water and the high-frequency electromagnetic heating metal ring 7, which is conducive to accelerating heat exchange.

[0026] See also Figure 1~Figure 2 In order to improve the heat dissipation performance of the coil, preferably, a plurality of hollow holes 17 are provided on the wall of the hollow cylinder.

[0027] See also Figure 2 In order to improve the air convection inside the coil and facilitate heat dissipation, preferably, the coil bracket 2 is provided with a plurality of ventilation holes 18 on the inner side of the bottom of the high-frequency electromagnetic heating coil 4.

[0028] See also Figure 1 In order to facilitate fixed installation, preferably, a plurality of screw fixing pillars 19 are provided at the bottom of the coil support 2.

[0029] Preferably, the coil is made of multiple strands of copper wire, the number of strands of the multiple strands of copper wire is 20 to 30, the power of the coil is 1000W to 1500W, and the inductance of the coil is 90 microhenry to 100 microhenry. The wire diameter of each strand of copper wire of the coil can be calculated according to the maximum current value passing through the power of the coil, and then matched according to the relevant national electrical standards according to the maximum current value.

[0030] Application examples: See Figure 1 , Figure 6, the coil support 2 of the high-frequency electromagnetic resonance device together with the coil frame 3 and the coil are arranged in a base, and the high-frequency electromagnetic heating metal ring 7 is detachably arranged on the inner wall of the lower part of the non-metallic kettle body 1 such as a ceramic kettle or a glass kettle, and after adding water, the high-frequency electromagnetic heating coil 4 is passed through a high-frequency driver with a high-frequency pulse current, so that the water in the non-metallic kettle body 1 can be heated through the high-frequency electromagnetic heating metal ring 7. When the non-metallic kettle body 1 is placed, the bottom of the non-metallic kettle body 1 presses down the gravity sensor switch 9 and the elastic elastic silicone ring 11 under the action of gravity, and the gravity sensor switch 9 generates a closed signal, indicating that it is not empty; under the action of the rebound force of the elastic elastic silicone ring 11, the metal heat transfer sheet 12 is closely attached to the bottom of the non-metallic kettle body 1, so that the temperature sensor 13 reflects the temperature of the non-metallic kettle body 1 more quickly, which is conducive to the matching controller to control the temperature of the non-metallic kettle body 1.

[0031] The heating process is as follows: high-frequency current generates a magnetic field through the annular high-frequency electromagnetic heating coil 4. When the magnetic force in the magnetic field passes through the high-frequency electromagnetic heating metal ring 7, countless small eddy currents are generated, causing the high-frequency electromagnetic heating metal ring 7 to heat up at a high speed. The high-frequency electromagnetic heating metal ring 7 acts as a heating element, and then heats the water in the non-metallic kettle body 1. Here, the high-frequency electromagnetic heating metal ring 7 replaces the traditional metal kettle body, and the annular high-frequency electromagnetic heating coil 4 replaces the coil disk with a planar spiral disc structure, getting rid of the structure of the traditional electromagnetic heating device. In addition, in terms of the use of metal materials, the high-frequency electromagnetic heating metal ring 7 is much less than the metal kettle body. In this way, the high-frequency electromagnetic heating metal ring 7 can be made of precious metals that are beneficial to the human body, such as silver, titanium or silver-titanium alloy.

[0032] The above undisclosed prior art contents can be processed according to the existing processes when producing products.

[0033] The above description and specific embodiments do not constitute any limitation to the present invention. The present invention is not limited to the specific implementation methods disclosed and described above. Some modifications and variations of the present invention should also fall within the protection scope of the claims of the present invention.

Claims

1. A ring-shaped high-frequency electromagnetic resonance device, comprising a coil support, a coil frame and a coil, wherein the coil frame is arranged on the coil support; wherein: The main body of the coil skeleton is a hollow cylinder made of non-metallic material. The coil is a high-frequency electromagnetic heating coil that is evenly wound on the outer wall of the hollow cylinder to form a ring. The number of turns of the high-frequency electromagnetic heating coil is 20 to 30. The top of the hollow cylinder is provided with an outwardly folded skeleton ring edge, and the bottom of the hollow cylinder is provided with an outwardly folded skeleton ring edge; 3 to 10 magnetic conductive strips are provided between the skeleton ring edge and the coil bracket, which are close to the high-frequency electromagnetic heating coil, and these magnetic conductive strips are evenly distributed along the circumference of the annular excitation coil.

2. The annular high-frequency electromagnetic resonance device according to claim 1, characterized in that: A gravity sensor switch is arranged on the top of the coil support, and the gravity sensor switch is located on the inner side of the bottom of the high-frequency electromagnetic heating coil.

3. The annular high-frequency electromagnetic resonance device as claimed in claim 2, characterized in that: A concave gravity sensing groove is arranged on the top of the coil support, and a gravity sensing wiring groove connected with the coil support is arranged on one side of the gravity sensing groove; a gravity sensor switch is arranged in the gravity sensing groove.

4. The annular high-frequency electromagnetic resonance device as claimed in claim 3, characterized in that: A temperature sensing component is provided on the top of the coil bracket, and the temperature sensing component includes a truncated cone-shaped elastic and telescopic silicone ring. The elastic and telescopic silicone ring is located on the inner side of the bottom of the high-frequency electromagnetic heating coil, and a metal heat transfer plate is provided on the top of the elastic and telescopic silicone ring. A temperature sensor is provided on the back of the metal heat transfer plate.

5. The annular high-frequency electromagnetic resonance device as claimed in claim 4, characterized in that: A concave temperature sensing groove is provided on the top of the coil bracket. The temperature sensing groove is located outside the heavy sensing groove and is concentric with the heavy sensing groove. A temperature sensing wiring groove connected to the coil bracket is provided on one side of the temperature sensing groove. The temperature sensing wiring groove is connected to the heavy sensing groove. An elastic and retractable silicone ring is arranged in the heavy sensing groove.

6. The annular high-frequency electromagnetic resonance device according to any one of claims 1 to 5, characterized in that: The high-frequency electromagnetic resonance device also includes a high-frequency electromagnetic heating metal ring used in conjunction with the high-frequency electromagnetic heating coil; the high-frequency electromagnetic heating metal ring is concentrically arranged in the encirclement of the high-frequency electromagnetic heating coil, and the wall of the high-frequency electromagnetic heating metal ring is provided with a plurality of heating holes for increasing the contact area with the water in the non-metallic kettle body.

7. The annular high-frequency electromagnetic resonance device according to any one of claims 1 to 5, characterized in that: The wall of the hollow cylinder is provided with a plurality of hollow holes.

8. The annular high-frequency electromagnetic resonance device according to any one of claims 1 to 5, characterized in that: The coil support is provided with a plurality of ventilation holes on the inner side of the bottom of the high-frequency electromagnetic heating coil.

9. The annular high-frequency electromagnetic resonance device according to any one of claims 1 to 5, characterized in that: A plurality of screw fixing supports are arranged at the bottom of the coil support.

10. The annular high-frequency electromagnetic resonance device according to any one of claims 1 to 5, characterized in that: The coil is made of multiple strands of copper wire, the number of strands of the multiple strands of copper wire is 20 to 30, the power of the coil is 1000W to 1500W, and the inductance of the coil is 90 microhenries to 100 microhenries.

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