High-power electric heating plate, electric heating assembly and cooking device thereof
By interlacing two heating wires into the mica fixed card slot, the problem of difficulty and uniformity of high-power electric heating coiling is solved, and a higher power and better control electric heating plate is achieved, which is suitable for a variety of cooking devices.
Patent Information
- Application Number
- CN202421738243.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-22
AI Technical Summary
During the winding process, high-power electric heating disks have problems such as increasing winding difficulty, difficulty in laying the slots and decreasing uniformity.
Two heating wires are used to stagger the slit of the mica fixing sheet. The winding point and winding point of the heating wire are respectively arranged on the mica fixing sheet and are connected through terminals. The slits are arranged equidistantly along the semicircular surface. The power of the heating wires can be different and distributed staggeredly to ensure uniformity.
It realizes a higher power electric heating disk, reduces the difficulty of winding, improves control accuracy and heating uniformity, is suitable for temperature control needs in different scenarios, and is energy-saving and widely applicable.
Smart Images
Figure CN223067213U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of heating devices, and in particular relates to a high-power electric heating plate, an electric heating component and a cooking device thereof. Background Art
[0002] Heating wire heating uses the principle of resistance heating in conductive materials to generate heat by passing current through the heating wire. The heating wire heating device has a simple structure, low manufacturing cost and is easy to use. It is widely used in cooking devices, industrial equipment and medical equipment. It has the characteristics of fast heating speed, uniform heating and high reliability; in addition, the temperature of the heating wire heating device can be precisely controlled, which is suitable for some occasions that require precise temperature control.
[0003] As a convenient form, the electric heating plate can reduce the area of the heating wire and achieve good heating efficiency while ensuring uniformity, and has been widely welcomed.
[0004] However, there are currently major problems with the winding of high-power electric heating plates. The reason is that as the power of the heating wire increases, its thickness will increase accordingly, and the area of the heating plate is relatively fixed, which requires slots with larger spacing. This results in poor results when the heating wire is wound in the slots. Specifically, the winding difficulty increases, the layout of the slots on the plate is difficult, and the uniformity decreases. Summary of the invention
[0005] In view of this, the main purpose of the utility model is to provide an electric heating plate with uniform heating and good winding effect.
[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:
[0007] A high-power electric heating plate is provided, comprising a plate body, wherein the plate body comprises a first mica fixing sheet and a second mica fixing sheet, wherein both sides of the first mica fixing sheet and the second mica fixing sheet are respectively provided with a slot for winding a heating wire.
[0008] A first heating wire and a second heating wire are provided, and both the first heating wire and the second heating wire are wound through the slot of the first mica fixing sheet to the slot of the second mica fixing sheet.
[0009] The first heating wire and the second heating wire are alternately wound in the slots of the first mica fixing sheet and the second mica fixing sheet;
[0010] The winding-in point and the winding-out point of the first heating wire and the second heating wire are respectively arranged on the first mica fixing sheet and the second mica fixing sheet, and pass through the second mica fixing sheet to be connected to correspondingly arranged wiring terminals.
[0011] Among them, the included angle between the connection line of the heating wires on both sides of the same position on the first mica fixing piece or the second mica fixing piece and the horizontal direction is -5 to 5°.
[0012] Among them, both the first mica fixing piece and the second mica fixing piece are semicircular, and the card slots are arranged at equal intervals along the surface of the circle.
[0013] Among them, the outer end of the card slot is adapted to the outer shape of the mica fixing piece; the inner end of the card slot is adapted to the outer shape of the central hole of the mica fixing piece.
[0014] Among them, a first notch and a second notch are formed on the first mica fixing piece, the first notch and the second notch are respectively arranged corresponding to the first heating wire and the second heating wire, and the first heating wire and the second heating wire respectively enter the card slot through the first notch and the second notch.
[0015] Among them, a third notch and a fourth notch are formed on the second mica fixing piece, and the third notch and the fourth notch are respectively arranged corresponding to the wire winding outlet points of the first heating wire and the second heating wire.
[0016] Among them, the powers of the first heating wire and the second heating wire are different.
[0017] Among them, the power ratio of the first heating wire to the second heating wire is: 1:1.5 to 1:4.
[0018] Among them, the power ratio of the first heating wire to the second heating wire is: 1:1.5 to 1:2.
[0019] Among them, the powers of the first heating wire and the second heating wire are the same.
[0020] Among them, the difference in the number of card slots between the first mica fixing piece and the second mica fixing piece is greater than or equal to 1.
[0021] Among them, the first heating wire enters through the first card slot of the first mica fixing piece and exits from the corresponding card slot at one end of the second mica fixing piece; the heating wire wound around the last card slot of the first mica fixing piece is the first heating wire.
[0022] Among them, the second heating wire enters through the first card slot of the first mica fixing piece and exits from the corresponding card slot of the second mica fixing piece; the heating wire wound around the last card slot of the first mica fixing piece is the second heating wire.
[0023] An electric heating component using a high-power electric heating plate further includes an insulating sheet, an upper cover and a lower cover. The disc body is located in a heating cavity formed by the connection of the upper cover and the lower cover, and the insulating sheet is arranged between the upper cover and the electric heating plate and between the lower cover and the electric heating plate.
[0024] A cooking device, comprising an electric heating component and a heating container, wherein the heating container is in contact with the upper cover of the electric heating component.
[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0026] The disk body is provided in two pieces, and a card slot is horizontally arranged on the circular disk body in a horizontal manner. The heating wire is wound in the card slot, and the heating wires are arranged equidistantly on the surface of the mica fixing piece, so that the heating is uniform.
[0027] A central hole is reserved in the middle of the disk body, so that it can be applied to fields such as rice cookers and pressure cookers, which is convenient for installing temperature start-stop components; the heating area is large and the heating effect is good.
[0028] Two heating wires are used for winding, and a higher-power electric heating disk is realized through a combination method. The specification of the heating wire can be reduced, the winding difficulty can be reduced, the control precision can be improved, and the staggered winding can also ensure good uniformity, and the temperature per unit area does not change greatly.
[0029] Moreover, the two heating wires can be independently controlled. Each heating wire can form an electric heating disk with a certain power. It can either be combined to form a high-power electric heating disk or be used alone to realize some functions with lower power consumption such as heat preservation. It has wide applicability and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The drawings described herein are used to disclose a further understanding of the present utility model and form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0031] Figure 1 FIG. 1 is a schematic structural diagram of a high-power electric heating disk provided by Embodiment 1 of the present utility model;
[0032] Figure 2 FIG. 2 is a schematic structural diagram of the back of a high-power electric heating disk provided by Embodiment 1 of the present utility model;
[0033] Figure 3 FIG. 3 is a schematic structural diagram of an electric heating component provided by Embodiment 2 of the present utility model;
[0034] Figure 4 is Figure 3 a cross-sectional view of;
[0035] Figure 5 FIG. 4 is a schematic structural diagram of a cooking device provided by Embodiment 3 of the present utility model.
[0036] 1 - First mica fixing piece, 2 - Second mica fixing piece, 3 - Heating wire, 4 - Card slot, 5 - Upper cover, 6 - Lower cover, 7 - Heat insulation layer, 8 - Heating container
[0037] 101 - The first heating wire, 102 - The second heating wire, 201 - The first notch, 202 - The second notch, 203 - The third notch, 204 - The fourth notch. Detailed implementation mode
[0038] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following further details the present utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0039] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0040] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, article or device. Without more limitations, the element defined by the statement "including one..." does not exclude the existence of another identical element in the process, article or device including that element.
[0041] The embodiment of the present utility model provides a high-power electric heating plate, as Figure 1 , Figure 2 , Figure 3 , Figure 4 shown,
[0042] A high-power electric heating plate includes a plate body, and the plate body includes a first mica fixing piece 1 and a second mica fixing piece 2. Both sides of the first mica fixing piece 1 and the second mica fixing piece 2 are respectively provided with card slots 4 for winding a heating wire 3.
[0043] The heating wire is provided with a first heating wire 101 and a second heating wire 102. The first heating wire 101 and the second heating wire 102 are both wound through the card slot 4 of the first mica fixing piece 1 to the card slot 4 of the second mica fixing piece 2.
[0044] The first heating wire 101 and the second heating wire 102 are alternately wound in the card slots 4 of the first mica fixing piece 1 and the second mica fixing piece 2;
[0045] The winding-in points and winding-out points of the first heating wire 101 and the second heating wire 102 are respectively arranged on the first mica fixing piece 1 and the second mica fixing piece 2, and pass through the second mica fixing piece 2 and are respectively connected to the correspondingly arranged wiring terminals.
[0046] Two heating wires 3 are used for winding, and a heating plate with a higher power is realized through a combination method, which can reduce the specification of the heating wire 3, reduce the winding difficulty, improve the control accuracy, and the alternate winding can also ensure good uniformity, and the temperature per unit area does not change greatly.
[0047] Moreover, the two heating wires 3 can be independently controlled. Each heating wire 3 can form a heating plate with a certain power. It can either be combined to form a high-power heating plate or be used alone to achieve some functions with lower power consumption such as heat preservation, etc., with wide applicability and energy saving.
[0048] The so-called alternate winding means that the first heating wire 101 winds around the first, third, fifth, seventh, etc. from the starting point, and the second heating wire 102 winds around the second, fourth, sixth, eighth, etc. card slots 4 from the starting point.
[0049] Or
[0050] The second heating wire 102 winds around the first, third, fifth, seventh, etc. from the starting point, and the first heating wire 101 winds around the second, fourth, sixth, eighth, etc. card slots 4 from the starting point.
[0051] Ensure that the first heating wire 101 and the second heating wire 102 are alternately distributed, so that when they are energized on the disk surface, the local temperature will not be too high.
[0052] On the first mica fixing piece 1 or the second mica fixing piece 2, the included angle between the connection lines of the heating wires 3 on both sides at the same position and the horizontal direction is -5 to 5°; both the first mica fixing piece 1 and the second mica fixing piece 2 are semicircular, and the card slots 4 are arranged at equal intervals along the surface of the semicircle.
[0053] A horizontal or small inclined included angle can facilitate the winding of the heating wire 3, and it can be better distributed.
[0054] The outer end of the card slot 4 is adapted to the outer shape of the mica fixing piece; the inner end of the card slot 4 is adapted to the outer shape of the central hole of the mica fixing piece.
[0055] The first mica fixing piece 1 is provided with a first notch 201 and a second notch 202. The first notch 201 and the second notch 202 are respectively arranged corresponding to the first heating wire 101 and the second heating wire 102. The first heating wire 101 and the second heating wire 102 are respectively wound into the card slot 4 through the first notch 201 and the second notch 202.
[0056] The second mica fixing piece 2 is provided with a third notch 203 and a fourth notch 204. The third notch 203 and the fourth notch 204 are respectively arranged corresponding to the wire winding outlet points of the first heating wire 101 and the second heating wire 102.
[0057] Setting the notch and the wire winding outlet point on the same mica fixing piece at the same time facilitates the installation and arrangement of the heating plate.
[0058] The powers of the first heating wire 101 and the second heating wire 102 are different.
[0059] The power of the first heating wire 101 can be greater than or less than that of the second heating wire 102 from time to time.
[0060] As shown in the following table, the power of the electric heating plate is from 1500 - 4000W. Each group of electric heating plates can be composed of multiple groups, that is, the powers of the heating wires 3 are equal or not equal.
[0061]
[0062] Preferably: The power ratio of the first heating wire 101 to the second heating wire 102 is 1:1.5 to 1:4.
[0063] The power ratio of 1:1.5 to 1:4 means 1:1.5, 1:1.6, 1:1.7, 1:1.8, 1:1.9, 1:2, 1:2.1, 1:2.2, 1:2.3, 1:2.4, 1:2.5, 1:2.6, 1:2.7, 1:2.8, 1:2.9, 1:3, 1:3.1, 1:3.2, 1:3.3, 1:3.4, 1:3.5, 1:3.6, 1:3.7, 1:3.8, 1:3.9, 1:4, that is, from 1.5 times to 4 times.
[0064] For common rice cookers or pressure cookers and other scenarios, the power ratio of the first heating wire 101 to the second heating wire 102 is 1:1.5 to 1:2.
[0065] The above 1:1.5 to 1:2 is approximate to the above power ratio.
[0066] The powers of the first heating wire 101 and the second heating wire 102 are the same.
[0067] The first heating wire 101 and the second heating wire 102 of the present application may have the same power.
[0068] The difference in the number of card slots 4 between the first mica fixing piece 1 and the second mica fixing piece 2 is greater than or equal to 1.
[0069] The first heating wire 101 is wound into the first card slot 4 of the first mica fixing piece 1 and wound out from the corresponding card slot 4 at one end of the second mica fixing piece 2; the heating wire 3 wound around the last card slot 4 of the first mica fixing piece 1 is the first heating wire 101.
[0070] The second heating wire 102 is wound into the first card slot 4 of the first mica fixing piece 1 and wound out from the corresponding card slot 4 of the second mica fixing piece 2; the heating wire 3 wound around the last card slot 4 of the first mica fixing piece 1 is the second heating wire 102.
[0071] The number of the first heating wires 101 of the present utility model may be the same as that of the second heating wires 102, or one more, that is, it forms an arrangement pattern of the first heating wire 101, the second heating wire 102, and the first heating wire 101 until it winds out of the second mica fixing piece 2.
[0072] The same number of heating wires 3 can also be used. One more heating wire 3 can make more use of the card slots 4 and increase the heating area.
[0073] The number of the second heating wires 102 of the present utility model may be the same as that of the first heating wires 101, or one more, that is, it forms an arrangement pattern of the second heating wire 102, the first heating wire 101, and the second heating wire 102 until it winds out of the second mica fixing piece 2.
[0074] The same number of heating wires 3 can also be used. One more heating wire 3 can make more use of the card slots 4 and increase the heating area.
[0075] These two different arrangement forms can be adapted to different scenarios. For example, in scenarios with many high-temperature scenarios such as baking trays and electric woks, more second heating wires 102 can be set, so that when used alone, the power can be as high as possible.
[0076] When cooking and making soup, etc., more first heating wires 101 are set, so that when used alone, it can be stable at a low temperature.
[0077] An electric heating component using a high-power electric heating plate further includes an insulating sheet, an upper cover 5 and a lower cover 6. The plate body is located in a heating cavity formed by connecting the upper cover 5 and the lower cover 6, and the insulating sheet is arranged between the upper cover 5 and the electric heating plate and between the lower cover 6 and the electric heating plate.
[0078] A heat insulation layer 7 is provided between the insulating sheet and the lower cover 6, and the terminal passes through the insulating sheet and the heat insulation layer 7 and extends out to the lower cover 6.
[0079] The heat conduction consumption of the lower cover 6 is small and it is relatively easy to be burned through. Therefore, the heat insulation layer 7 is provided to isolate the heat generated by the electric hot plate from spreading downward. The heat insulation layer 7 includes, but is not limited to, waste materials cut from waste materials, insulating sheets, and mica fixing sheets. It can either form a filling structure to fill the cavity or be made into a layered structure and disposed between the insulating sheet and the lower cover 6.
[0080] Embodiment 3 of the present utility model provides a cooking device, such as Figure 5 shown, which includes an electric heating component, a heating container 8; a start-stop switch and a base. The heating container 8 is arranged in contact with the upper cover 5 of the start-stop switch and the electric heating component on the base. The lower cover 6 is provided with feet detachably connected to the base, and the lower cover 6 is provided with a connection hole connected to the heat preservation component.
[0081] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all the embodiments. The accompanying drawings show the preferred embodiments of the present application, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields is similarly within the scope of the patent protection of the present application.
Claims
1. A high-power electric heating plate, characterized in that: The disk body includes a first mica fixing sheet and a second mica fixing sheet, and both sides of the first mica fixing sheet and the second mica fixing sheet are respectively provided with a card slot. A first heating wire and a second heating wire are provided, and the first heating wire and the second heating wire are both wound through the slot of the first mica fixing sheet to the slot of the second mica fixing sheet. The first heating wire and the second heating wire are alternately wound in the slots of the first mica fixing sheet and the second mica fixing sheet; The winding entry point and the winding exit point of the first heating wire and the second heating wire are respectively arranged on the first mica fixing sheet and the second mica fixing sheet, and pass through the second mica fixing sheet to be connected to the correspondingly arranged wiring terminals.
2. The high-power electric hot plate according to claim 1, characterized in that, The angle between the connecting line of the heating wires on both sides of the same position on the first mica fixing plate or the second mica fixing plate and the horizontal direction is -5 to 5 degrees.
3. A high-power electric hot plate according to claim 1, characterized in that, The first mica fixing sheet and the second mica fixing sheet are both semicircular in shape, and the slots are arranged equidistantly along the surface of the circle.
4. A high-power electric hot plate according to claim 1, characterized in that, The outer end of the slot is adapted to the shape of the mica fixing sheet; the inner end of the slot is adapted to the shape of the center hole of the mica fixing sheet.
5. A high-power electric hot plate according to claim 1, characterized in that, The first mica fixing sheet is provided with a first notch and a second notch, the first notch and the second notch are respectively arranged corresponding to the first heating wire and the second heating wire, and the first heating wire and the second heating wire are respectively wound into the card slot through the first notch and the second notch.
6. The high-power electric hot plate according to claim 5, wherein, The second mica fixing sheet is provided with a third notch and a fourth notch, and the third notch and the fourth notch are respectively arranged corresponding to the winding exit points of the first heating wire and the second heating wire.
7. A high-power electric hot plate according to claim 1, characterized in that, The power of the first heating wire is different from that of the second heating wire.
8. The high-power electric hot plate according to claim 7, characterized in that, The power ratio of the first heating wire to the second heating wire is 1:1.5 to 1:
4.
9. The high-power electric heating plate according to claim 7, wherein, The power ratio of the first heating wire to the second heating wire is 1:1.5 to 1:
2.
10. A high-power electric hot plate according to claim 1, characterized in that, The first heating wire and the second heating wire have the same power.
11. A high-power electric hot plate according to claim 1, characterized in that, The difference in the number of slots between the first mica fixing sheet and the second mica fixing sheet is greater than or equal to 1.
12. The high-power electric hot plate according to claim 1, characterized in that, The first heating wire is wound into the first slot of the first mica fixing plate and is wound out of the slot at one end of the second mica fixing plate corresponding to the first heating wire; the heating wire wound around the last slot of the first mica fixing plate is the first heating wire.
13. A high-power electric hot plate according to claim 1, characterized in that, The second heating wire is wound into the first slot of the first mica fixing sheet and is wound out of the corresponding slot of the second mica fixing sheet; the heating wire wound around the last slot of the first mica fixing sheet is the second heating wire.
14. An electric heating component using the high-power electric heating plate described in any one of claims 1 to 13, characterized in that, It also includes an insulating sheet, an upper cover and a lower cover. The plate body is located in a heating cavity formed by connecting the upper cover and the lower cover. The insulating sheet is arranged between the upper cover and the electric heating plate and between the lower cover and the electric heating plate.
15. A cooking device, characterized in that: The method comprises using the electric heating component according to claim 14 and a heating container, wherein the heating container is in contact with the upper cover of the electric heating component.
Citation Information
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