Combined coil panel and electromagnetic heating appliance

Abstract

The utility model discloses a combined coil panel and an electromagnetic heating appliance, the combined coil panel comprises a panel rack, the upper surface of the panel rack is provided with a plurality of winding grooves, and the lower bottom surface of the panel rack is provided with a plurality of first magnetic stripe mounting grooves isolated from the winding grooves; the number of the electromagnetic coils is not larger than that of the winding grooves, all the electromagnetic coils are arranged in the corresponding winding grooves, and all the electromagnetic coils are sequentially connected in series; the number of the temperature measuring assemblies is multiple, the inner periphery of each electromagnetic coil is provided with the temperature measuring assembly, and the periphery of at least one electromagnetic coil is provided with the temperature measuring assembly; the number of the transverse magnetic strips is multiple, and all the transverse magnetic strips are installed in the multiple first magnetic strip installation grooves respectively. According to the technology, the multiple electromagnetic coils are connected in series to achieve large-area simultaneous heating, due to the fact that currents flowing through all the electromagnetic coils are equal, the heating efficiency can be effectively prevented from being reduced, heating is more uniform, and any layout of a heating area can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a combined coil disk and an electromagnetic heating device. Background Art

[0002] In the product field of electromagnetic heating technology, in response to the demand for large-area heating, the existing technology often tries to make the area of ​​a single coil as large as possible, but this will cause the number of turns of the coil to become sparse, which will directly affect the thermal efficiency and uniformity of the heating, resulting in poor heating effect. Utility Model Content

[0003] The utility model aims to provide a combined coil disk to solve the technical problem that it is difficult to achieve uniform heating over a large area in the existing electromagnetic heating technology.

[0004] According to the first embodiment of the utility model, the combined coil disk comprises:

[0005] A disk rack, the upper surface of which is provided with a plurality of winding grooves, and the lower bottom surface of the disk rack is provided with a plurality of first magnetic strip installation grooves isolated from the winding grooves;

[0006] The number of electromagnetic coils is no more than the number of the winding slots, all electromagnetic coils are arranged in corresponding winding slots, and all electromagnetic coils are connected in series in sequence;

[0007] There are multiple temperature measuring components, each of which is installed on the inner periphery of the electromagnetic coil, and at least one of which is installed on the outer periphery of the electromagnetic coil;

[0008] There are multiple transverse magnetic strips, and all of the transverse magnetic strips are installed in multiple of the first magnetic strip installation grooves respectively.

[0009] The combined coil disk according to the embodiment of the utility model has at least the following beneficial effects: compared with the prior art, the present technology uses multiple electromagnetic coils in series to achieve simultaneous heating of a large area. Since the currents flowing through all the electromagnetic coils are equal, the decrease in heating efficiency can be effectively avoided, the heating is more uniform, and any layout of the heating area can be achieved; in addition, the transverse magnetic strips are used to shield the magnetic lines of force of the electromagnetic coil toward the bottom, thereby concentrating the magnetic lines of force of the electromagnetic coil upward, and the setting of the temperature measuring component can measure the temperature of the inner and outer areas of the electromagnetic coil respectively, thereby achieving accurate temperature measurement and temperature control and reducing the probability of misjudgment.

[0010] According to some embodiments of the present invention, specifically, each of the electromagnetic coils has a radiating structure extending from the center to the outside.

[0011] According to some embodiments of the utility model, the number of the winding grooves is two, and the outer ends of the two electromagnetic coils are connected in series to facilitate production.

[0012] According to some embodiments of the utility model, the number of the winding slots is three or more, and every two electromagnetic coils together constitute a coil assembly, the outer ends of the two electromagnetic coils constituting the coil assembly are connected in series, and the inner end of any electromagnetic coil constituting the coil assembly is connected in series with the inner end of the other electromagnetic coils. Through the above-mentioned arrangement, the utility model can reduce the number of times the two electromagnetic coils perform oblique wire pulling, thereby simplifying the production process and facilitating mass production.

[0013] According to some embodiments of the present invention, in order to improve production efficiency, all electromagnetic coils are wound by one wire.

[0014] According to some embodiments of the present invention, in order to more finely shield the magnetic lines of force of each electromagnetic coil, the disk rack is provided with a plurality of the first magnetic strip installation grooves on the lower bottom surface of each of the winding grooves.

[0015] According to some embodiments of the utility model, the disk rack is provided with a plurality of second magnetic strip installation slots isolated from the winding slots in the inner periphery of each winding slot, and vertical magnetic strips are installed in the second magnetic strip installation slots. The vertical magnetic strips are used to shield the magnetic lines of force of the electromagnetic coil toward the inner periphery, so as to concentrate the magnetic lines of force of the electromagnetic coil to be distributed upward and outward.

[0016] According to some embodiments of the present invention, all the second magnetic stripe installation slots are connected one by one with all the first magnetic stripe installation slots to reduce the difficulty of processing. In this case, the vertical magnetic stripe and the horizontal magnetic stripe can be formed in one piece.

[0017] According to some embodiments of the utility model, the temperature measuring component located at the periphery maintains the same distance from at least two temperature measuring components located at the inner periphery, so that the temperature measuring component located at the periphery can measure the temperature of multiple electromagnetic coils at the same time, thereby effectively reducing the number of the temperature measuring components set.

[0018] The electromagnetic heating device according to the second embodiment of the utility model comprises a housing and the above-mentioned combined coil disk, wherein the combined coil disk is installed inside the housing.

[0019] The electromagnetic heating device according to the embodiment of the utility model has at least the following beneficial effects: by providing the combined coil disk, the electromagnetic heating device obtains a better large-area heating performance and a better heating effect than the prior art.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the combined coil disk of the first embodiment of the utility model;

[0023] Figure 2 yes Figure 1 The three-dimensional structure exploded view of the combined coil disk shown;

[0024] Figure 3 yes Figure 1 A cross-sectional view of the combined coil disk shown;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the combined coil disk of the second embodiment of the utility model;

[0026] Figure 5 yes Figure 4 The three-dimensional structural exploded view of the combined coil disk shown.

[0027] In the accompanying drawings: 100-disk rack, 200-electromagnetic coil, 110-winding groove, 111-vertical wall, 112-slot position, 120-wiring groove, 130-wire hole, 140-first magnetic stripe installation groove, 300-horizontal magnetic strip, 150-second magnetic stripe installation groove, 400-vertical magnetic strip, 500-temperature measuring assembly, 131-installation step, 160-hole position, 20-coil assembly, 170-installation hole. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] like Figures 1 to 3 As shown, according to the combined coil disk of the first embodiment of the utility model, it includes a disk rack 100, two electromagnetic coils 200 and a plurality of magnetic strips. The disk rack 100 is used as a mounting reference part, and other parts are connected to the disk rack 100 to form a whole. Among them, the disk rack 100 is made of insulating material, and in this embodiment, it is preferably made of plastic. The disk rack 100 can be a rectangular structure. The upper surface of the disk rack 100 is provided with two winding grooves 110, and each of the winding grooves 110 is arranged in a spiral manner with multiple layers of vertical walls 111. The adjacent two layers of vertical walls 111 are arranged at intervals and together form a slot 112 that can accommodate the electromagnetic coil 200, so that the winding grooves 110 that spread spirally from the inside to the outside are formed on the upper surface of the disk rack 100. The outer sides of the two winding grooves 110 are connected to each other through the wiring groove 120, so that the two winding grooves 110 can be butted together.

[0033] Correspondingly, two electromagnetic coils 200 are respectively arranged in the corresponding winding grooves 110, and each electromagnetic coil 200 has a radial structure from the center to the outside. In order to simplify the production process, the two electromagnetic coils 200 are wound together by a wire, and the outer ends of the two electromagnetic coils 200 are connected in series. Compared with the series connection method of connecting the inner and outer ends of the two electromagnetic coils 200, the series connection method of the utility model can be wound along the direction, and the wire will not be diagonally pulled to the next entrance, and the winding groove 110 plays a guiding and fixing role, so that the machine guide nozzle can follow the direction of the winding groove 110, and the production process is simpler and more efficient, so as to facilitate mass production. However, since the current directions of the two electromagnetic coils 200 are inconsistent in this embodiment, resulting in different directions of their magnetic lines of force, it is necessary to maintain a certain distance (more than 20mm) between all electromagnetic coils 200 to avoid the two electromagnetic coils 200 being too close to each other and causing the cancellation of magnetic lines of force.

[0034] Specifically, the shape of the electromagnetic coil 200 can be selected as a concentric ring shape, a concentric square shape, a concentric ellipse shape or a concentric runway shape, etc. The thickness of the electromagnetic coil 200 is between 2 mm and 8 mm. The diameter of the wire constituting the electromagnetic coil 200 can be selected to be 1 mm to 3.5 mm according to the required power. The number of turns of the electromagnetic coil 200 is allocated according to the inductance, and the number of turns can be selected to be between 10 and 30. Since the inner end of the electromagnetic coil 200 needs to be wired, the disk rack 100 is provided with a wire hole 130 at the center of each winding slot 110 to lead the wiring end of the electromagnetic coil 200 downward to the control circuit, thereby supplying power to the electromagnetic coil 200.

[0035] In addition, since the upper area of ​​the combined coil disk is the heating area and the lower area is the non-heating area, the magnetic lines of force located below are useless, which not only occupy power but also easily cause damage to other electrical components. For this reason, it is necessary to provide a plurality of magnetic strips for shielding the magnetic lines of force on the lower bottom surface of the disk rack 100, so as to concentrate the magnetic lines of force of the electromagnetic coil 200 on the upper side.

[0036] Specifically, the bottom surface of the disk rack 100 is provided with a plurality of first magnetic stripe installation slots 140 isolated from the winding slots 110, that is, the winding slots 110 are not connected to the first magnetic stripe installation slots 140, and the first magnetic stripe installation slots 140 can be arranged as a whole under all the winding slots 110, or finely arranged under each winding slot 110. In this embodiment, it is preferred to arrange a plurality of first magnetic stripe installation slots 140 under each winding slot 110. For the plurality of first magnetic stripe installation slots 140 in the same group, they are not connected to the corresponding winding slots 110, and each of the first magnetic stripe installation slots 140 extends along the radial direction of the winding slot 110, and the plurality of first magnetic stripe installation slots 140 are evenly distributed in an annular manner around the center of the winding slot 110. Each of the first magnetic stripe installation slots 140 is fixedly connected to a transverse magnetic stripe 300 by magnetic fluid adhesive, and the transverse magnetic stripe 300 is used to shield the magnetic force lines of the electromagnetic coil 200 facing downward, so as to concentrate the magnetic force lines of the electromagnetic coil 200 and distribute them upward. Since the first magnetic stripe installation slot 140 is not connected to the winding slot 110, the transverse magnetic stripe 300 is not in direct contact with the electromagnetic coil 200, so as to prevent the electromagnetic coil 200 from leaking electricity and causing a short circuit and burning the disc.

[0037] Furthermore, the disk rack 100 is provided with a plurality of second magnetic stripe mounting grooves 150 isolated from the winding groove 110 at the inner periphery of each winding groove 110, that is, the winding groove 110 is not connected with the second magnetic stripe mounting grooves 150, and the second magnetic stripe mounting grooves 150 are arranged in the up-down direction, and the number of the second magnetic stripe mounting grooves 150 is consistent with the number of the first magnetic stripe mounting grooves 140, and all the second magnetic stripe mounting grooves 150 are connected one by one with all the first magnetic stripe mounting grooves 140. A vertical magnetic stripe 400 is fixedly connected to each of the second magnetic stripe mounting grooves 150 by magnetic fluid glue, and the vertical magnetic stripe 400 is used to shield the magnetic lines of force of the electromagnetic coil 200 toward the inner periphery, so as to concentrate the magnetic lines of force of the electromagnetic coil 200 and distribute them upward and outward, so as to better heat the heating dish.

[0038] It should be further explained that, since all the second magnetic stripe installation slots 150 are connected to all the first magnetic stripe installation slots 140 one by one, the vertical magnetic stripe 400 and the horizontal magnetic stripe 300 can be integrally formed into an L-shaped magnetic stripe to simplify the installation steps.

[0039] Of course, in other embodiments, all the second magnetic stripe installation slots 150 and all the first magnetic stripe installation slots 140 may remain disconnected, and in this case, any one of the second magnetic stripe installation slots 150 is located between two adjacent first magnetic stripe installation slots 140. For the above structure, since the positions of the second magnetic stripe installation slots 150 and the first magnetic stripe installation slots 140 need to be allocated, the design difficulty and processing difficulty are relatively large.

[0040] In some embodiments of the utility model, the temperature measuring component 500 is installed on the inner periphery of each electromagnetic coil 200, and the temperature measuring component 500 can use a temperature measuring probe, so that the utility model has the function of real-time temperature measurement to prevent overheating caused by circuit failure. In addition, the temperature measuring component 500 is installed on the periphery of at least one electromagnetic coil 200, and the temperature level of the coil disk is comprehensively evaluated through internal and external temperature measuring stations to achieve accurate temperature measurement and temperature control, reducing the probability of misjudgment.

[0041] Specifically, the rack 100 is provided with a mounting step 131 in each of the wire holes 130, and a hole 160 with the mounting step 131 is provided outside the winding groove 110, so that the temperature measuring component 500 can be installed on the rack 100 through the mounting step 131. Moreover, in order to save the number of the temperature measuring components 500, the temperature measuring component 500 located at the periphery maintains the same distance with the two temperature measuring components 500 located at the inner periphery, so that the temperature measuring component 500 located at the periphery can measure the temperature of two electromagnetic coils 200 at the same time.

[0042] like Figure 4 and Figure 5 As shown, this is the second embodiment of the utility model. Compared with the first embodiment, the number of the winding slots 110 is four, and correspondingly, the number of the electromagnetic coils 200 is also four, and the four electromagnetic coils 200 are connected in series in sequence. For the convenience of description, every two electromagnetic coils 200 together constitute a coil assembly 20, and the outer ends of the two electromagnetic coils 200 constituting the coil assembly 20 are connected in series, and the inner end of any electromagnetic coil 200 constituting the coil assembly 20 is connected in series with the inner ends of other electromagnetic coils 200. Although the two electromagnetic coils 200 cannot be wound in the direction at this time, compared with the prior art, it can reduce the number of times the two electromagnetic coils 200 are inclined, so as to simplify the production process and facilitate mass production.

[0043] It is understandable that no matter what number of electromagnetic coils 200 there are, all electromagnetic coils 200 are wound together by one wire. Since the number of electromagnetic coils 200 increases to four, the number of the first magnetic stripe installation slot 140, the second magnetic stripe installation slot 150, the horizontal magnetic stripe 300, the vertical magnetic stripe 400 and the temperature measurement component 500 also need to be increased synchronously. In addition, the number of the winding slots 110 can be more than the number of the electromagnetic coils 200, so as to be reserved for expansion.

[0044] The present invention does not limit the specific number of the electromagnetic coils 200. When the number of the electromagnetic coils 200 is an even number, all the electromagnetic coils 200 can be paired into an integer number of coil assemblies 20. When the number of the electromagnetic coils 200 is an odd number, one of the electromagnetic coils 200 is separated. However, as long as all the electromagnetic coils 200 are connected in series, the outer ends of the two electromagnetic coils 200 constituting the coil assembly 20 are connected in series, and the inner end of any electromagnetic coil 200 constituting the coil assembly 20 is connected in series with the inner end of the other electromagnetic coils 200, no matter what the number of the electromagnetic coils 200 is, it falls within the protection scope of the present invention.

[0045] According to the electromagnetic heating device of the second embodiment of the utility model, it includes the combined coil disk according to the first embodiment of the utility model, and also includes a shell (not shown in the drawings), the upper surface of which is used to support the heating surface of the heating vessel. In order to install the combined coil disk inside the shell, the disk rack 100 is provided with a plurality of mounting holes 170, so that the disk rack 100 can be installed inside the shell by screws, and at this time all the electromagnetic coils 200 are facing the heating surface of the shell.

[0046] By providing the combined coil disk, the electromagnetic heating device obtains a larger area heating performance that is better than the prior art, and the heating effect is also better, and has a good market prospect.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Combined coil disk, characterized in that: include: A disk rack (100) having a plurality of winding grooves (110) on its upper surface, and a plurality of first magnetic strip installation grooves (140) isolated from the winding grooves (110) on its lower bottom surface; The number of electromagnetic coils (200) is no more than the number of the winding slots (110), all electromagnetic coils (200) are arranged in corresponding winding slots (110), and all electromagnetic coils (200) are connected in series in sequence; A plurality of temperature measuring components (500), each of the inner periphery of the electromagnetic coil (200) is equipped with the temperature measuring component (500), and the outer periphery of at least one of the electromagnetic coils (200) is equipped with the temperature measuring component (500); There are multiple transverse magnetic strips (300), and all the transverse magnetic strips (300) are respectively installed in the multiple first magnetic strip installation grooves (140).

2. The combined coil disk according to claim 1, characterized in that: Each electromagnetic coil (200) has a radiating structure extending from the center to the outside.

3. The combined coil disk according to claim 2, characterized in that: The number of the winding grooves (110) is two, and the outer ends of the two electromagnetic coils (200) are connected in series.

4. The combined coil disk according to claim 2, characterized in that: The number of the winding slots (110) is three or more, and every two of the electromagnetic coils (200) together constitute a coil assembly (20), the outer ends of the two electromagnetic coils (200) constituting the coil assembly (20) are connected in series, and the inner end of any electromagnetic coil (200) constituting the coil assembly (20) is connected in series with the inner end of the other electromagnetic coils (200).

5. The combined coil disk according to claim 3 or 4, characterized in that: All electromagnetic coils (200) are wound together by one wire.

6. The combined coil disk according to claim 1, characterized in that: The disk rack (100) is provided with a plurality of the first magnetic strip installation grooves (140) on the lower bottom surface of each of the winding grooves (110).

7. The combined coil disk according to claim 6, characterized in that: The disk rack (100) is provided with a plurality of second magnetic stripe installation grooves (150) isolated from the winding grooves (110) on the inner periphery of each winding groove (110), and vertical magnetic stripes (400) are installed in the second magnetic stripe installation grooves (150).

8. The combined coil disk according to claim 7, characterized in that: All the second magnetic stripe installation slots (150) are respectively connected one by one with all the first magnetic stripe installation slots (140).

9. The combined coil disk according to claim 1, characterized in that: The temperature measurement component (500) located at the periphery maintains the same distance from at least two temperature measurement components (500) located at the inner periphery.

10. An electromagnetic heating device, characterized in that: The combined coil disk according to any one of claims 1 to 9 further comprises: a housing, wherein the combined coil disk is installed inside the housing.

Images