A heat disc with electric staggered input structure
By introducing an electrical misalignment input structure into the heating plate and using misalignment clearance grooves and ceramic beads for fixation, the problem of uneven winding of the heating wire is solved, achieving uniform heating of the heating plate and flexible adjustment of the wire outlet position.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ENAITER ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-06-09
AI Technical Summary
Existing heating plates have large gaps in the heating wire near the power input and output ends due to the winding process, which affects the uniformity of heating.
The electric staggered input structure is adopted. By setting staggered clearance grooves and ceramic beads in the heating plate, it is ensured that the heating wire can be evenly distributed during the winding process, avoiding empty areas. The heating wire inlet and outlet ends are close to the edge and fixed by ceramic beads.
It achieves more uniform heating of the heating plate, solves the problem of uneven winding of the heating wire, and allows for flexible adjustment of the position of the wire outlet.
Smart Images
Figure CN224330814U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating plates, and in particular to a heating plate with an electrical misalignment input structure. Background Technology
[0002] The heating element, as an essential component of cooking appliances, mainly functions to heat and raise the temperature of food.
[0003] Currently, heating plates on the market that use chip-wound heating wires have large gaps in the heating wire near the power input and output ends due to the winding process. These gaps prevent the heating plate from heating evenly and affect the cooking effect. Summary of the Invention
[0004] The purpose of this invention is to provide a heating plate with an electrically misaligned input structure to solve the above-mentioned problems.
[0005] According to one aspect of the present invention, a heating plate with an electrically offset input structure is provided, comprising: the heating plate including, from top to bottom, a cover, a first insulator, a heating component, a second insulator, and a chassis assembly; the heating component including a chip and a heating wire; the heating wire being wound around the chip; one side of the chip having an inlet hole and an outlet hole for the heating wire to pass through; the second insulator including a first upper insulating sheet and a first lower insulating sheet; the edge of the first upper insulating sheet having a first clearance groove corresponding to the inlet hole and the outlet hole; the first lower insulating sheet having a second clearance groove; the second clearance groove being offset from the first clearance groove; the heating wire leading out from the inlet hole and the outlet hole sequentially passing through the first clearance groove and the second clearance groove before being electrically connected to the chassis assembly.
[0006] In some embodiments, the chassis assembly includes a base plate with two through holes corresponding to the second clearance groove. The through holes contain ceramic beads, and the ceramic beads contain inserts. The two inserts are respectively welded to both ends of the heating wire.
[0007] In some embodiments, the edge of the cover bends downward to extend into a retaining groove for receiving a flange, and the top edge of the chassis assembly bends downward to extend into the flange; the first insulator, the heating element, and the second insulator are sandwiched between the cover and the chassis assembly.
[0008] In some embodiments, the first insulator includes a second upper insulating sheet and a second lower insulating sheet.
[0009] In some embodiments, the first upper insulating sheet, the first lower insulating sheet, the second upper insulating sheet, and the second lower insulating sheet are all provided with slots extending from the edge to the center.
[0010] In some embodiments, the distance of the second clearance groove from the center of the heating element is less than the distance of the first clearance groove from the center of the heating element.
[0011] In some embodiments, the chip, the first upper insulating sheet, the first lower insulating sheet, the second upper insulating sheet, and the second lower insulating sheet are all mica sheets.
[0012] Compared with the prior art, the beneficial effects of this application are as follows:
[0013] The heating wire of this application can be evenly wound on the chip while ensuring safety. The internal structure of the second insulator below the wire inlet and outlet ends allows some of the heating wire to be folded and pressed into the heating gap area. The positions of the wire inlet and outlet ends can be adjusted to be closer to the edge, solving the problem of large areas without heating wire winding at the inlet and outlet ends, making the heating of the whole tray more uniform. In addition, it solves the problem that the position of the outlet end can be adjusted according to customer needs. Attached Figure Description
[0014] Figure 1 This is an exploded view of the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of the present invention after the bottom hidden base plate is installed;
[0016] Figure 3 for Figure 2 A schematic diagram of the structure after the first insulating sheet is hidden;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] refer to Figures 1 to 4This application provides a heating plate with an electrically offset input structure, comprising: from top to bottom, a cover 1, a first insulator, a heating component, a second insulator, and a chassis assembly. The heating component includes a chip 2 and a heating wire 3. The heating wire 3 is wound on the chip 2. One side of the chip 2 is provided with an inlet hole and an outlet hole for the heating wire 3 to pass through. The second insulator includes a first upper insulating sheet 4 and a first lower insulating sheet 5. The edge of the first upper insulating sheet 4 is provided with a first clearance groove 6 corresponding to the inlet hole and the outlet hole. The first lower insulating sheet 5 is provided with a second clearance groove 7. The second clearance groove 7 is offset from the first clearance groove 6. The heating wire 3 leading out from the inlet hole and the outlet hole passes through the first clearance groove 6 and the second clearance groove 7 in sequence and is electrically connected to the chassis assembly.
[0020] In some embodiments, the chassis assembly includes a base plate 8, which has two through holes corresponding to the second clearance groove 7. The through holes contain ceramic beads 9, and the ceramic beads 9 contain inserts 10. The two inserts 10 are respectively welded to the two ends of the heating wire 3. The ceramic beads 9 can isolate the base plate 8 from the inserts 10 and can also conveniently fix the position of the inserts 10.
[0021] In some embodiments, the edge of the cover 1 is bent downward to extend into a retaining groove 12 for receiving the flange 11, and the top edge of the chassis assembly is bent downward to extend into a flange 11; the first insulator, the heating element, and the second insulator are sandwiched between the cover 1 and the chassis assembly.
[0022] In some embodiments, the first insulator includes a second upper insulating sheet 13 and a second lower insulating sheet 14.
[0023] In some embodiments, the first upper insulating sheet 4, the first lower insulating sheet 5, the second upper insulating sheet 13, and the second lower insulating sheet 14 are all provided with slots extending from the edge to the center. The addition of slots can prevent them from cracking when they are lifted up.
[0024] In some embodiments, the length of the second clearance groove 7 from the middle of the heating element is less than the length of the first clearance groove 6 from the middle of the heating element, and the heating area is increased by folding the heating wire 3 between the first clearance groove 6 and the second clearance groove 7.
[0025] In some embodiments, the chip 2, the first upper insulating sheet 4, the first lower insulating sheet 5, the second upper insulating sheet 13, and the second lower insulating sheet 14 are all mica sheets. The mica sheets have high temperature resistance and insulation properties, and have a certain degree of flexibility after the slots are made.
[0026] During assembly, the heating wire 3 is wound around the chip 2, with both ends passing through the two holes of the chip 2. The length of the wire is determined according to the input end of the heating plate. After the heating wire 3 is welded to the insert 10, the wire end of the heating wire 3 is bent parallel to the bottom of the first upper insulating sheet 4 at the position of the first relief groove 6. Then the first lower insulating sheet 5 is inserted, and the insert 10 passes through the second relief groove 7. The insert 10 is fitted into the ceramic bead 9 and placed into the base plate 8. Then the cover 1, the first insulator, the heating component, the second insulator, and the chassis component are pressed together to complete the assembly.
[0027] The heating wire 3 of this application can be evenly wound on the chip 2 while ensuring safety. Under the inlet and outlet ends of the heating wire 3, the internal structure of the second insulator allows some of the heating wire 3 to be folded and pressed into the heating gap area. The position of the inlet and outlet ends of the heating wire 3 can be adjusted to be closer to the edge, which solves the problem of large areas without heating wire 3 winding at the inlet and outlet ends, making the heating of the whole tray more uniform. In addition, it solves the problem that the position of the outlet end can be adjusted according to customer needs.
[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A heating plate with an electrically offset input structure, characterized in that, include: The heating plate, from top to bottom, includes a cover, a first insulator, a heating component, a second insulator, and a chassis assembly. The heating component includes a chip and a heating wire. The heating wire is wound around the chip. One side of the chip has an inlet hole and an outlet hole for the heating wire to pass through. The second insulator includes a first upper insulating sheet and a first lower insulating sheet. The edge of the first upper insulating sheet has a first clearance groove corresponding to the inlet hole and the outlet hole. The first lower insulating sheet has a second clearance groove. The second clearance groove is offset from the first clearance groove. The heating wire leading out from the inlet hole and the outlet hole passes through the first clearance groove and the second clearance groove in sequence and then connects to the chassis assembly.
2. The heating plate with an electrically misaligned input structure according to claim 1, characterized in that, The chassis assembly includes a base plate, which has two through holes corresponding to the second clearance groove. The through holes contain ceramic beads, and the ceramic beads contain inserts. The two inserts are respectively welded to both ends of the heating wire.
3. The heating plate with an electrically misaligned input structure according to claim 1, characterized in that, The edge of the cover bends downward to extend into a fixing groove for accommodating the flange, and the top edge of the chassis assembly bends downward to extend into the flange; the first insulator, the heating element, and the second insulator are sandwiched between the cover and the chassis assembly.
4. The heating plate with an electrically misaligned input structure according to claim 1, characterized in that, The first insulator includes a second upper insulating sheet and a second lower insulating sheet.
5. The heating plate with an electrically misaligned input structure according to claim 4, characterized in that, The first upper insulating sheet, the first lower insulating sheet, the second upper insulating sheet, and the second lower insulating sheet all have slots extending from the edge to the center.
6. The heating plate with an electrically misaligned input structure according to claim 1, characterized in that, The distance from the second clearance groove to the middle of the heating element is less than the distance from the first clearance groove to the middle of the heating element.
7. The heating plate with an electrically misaligned input structure according to claim 5, characterized in that, The chip, the first upper insulating sheet, the first lower insulating sheet, the second upper insulating sheet, and the second lower insulating sheet are all mica sheets.