Heating tape for enhancing one-way heat transfer and stewpot using same

Abstract

The utility model discloses a heating tape capable of enhancing one-way heat transfer and a stewpot applying the same, which belong to the technical field of stewpot heating, and comprise a first edge covering tape, a first heat insulation sheet, a heating sheet, a second heat insulation sheet and a second edge covering tape which are stacked in sequence, and further comprise a third heat insulation sheet, the third heat insulation sheet is arranged between the first heat insulation sheet and the heating sheet, and the thicknesses of the heat insulation sheets on the two sides of the heating sheet are different, so that heat generated on the heating sheet is transmitted to a single side, heat transmission is more directional, the heat utilization rate is increased, and meanwhile external temperature rise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to stew pot heating technical field, concretely relates to a kind of heating band of reinforcing one-way heat transfer and the stew pot of applying it. BACKGROUND

[0002] Stew pot is often used in cooking, and the existing slow cooker generally uses a heating band to heat the food in the pot. The heating band structure is to wind the heating wire on a support, and then clamp a heat insulation sheet on both sides of the support for heat insulation. An aluminum sheet is used to cover and fix the whole structure. When in use, the heat generated by the heating wire is transferred to the liquid or food in the pot through the two surfaces of the cover sheet by heat radiation and heat convection. However, the heat on the side away from the pot liner is easily lost in the interlayer of the pot, and the heat is not effectively utilized, which reduces the heating efficiency and causes the temperature of the pot shell to rise too high, which does not meet the product surface temperature rise requirement in the safety regulations. In order to solve the problem of shell heating, a heat insulation filler such as asbestos or foaming material is generally added in the interlayer. This increases the cost and affects the quality of the product. Therefore, there is a need for a heating band structure that can fully utilize the heat on both sides to solve the above problems.

[0003] The patent application with the publication number CN203609300U discloses an energy-saving electric stew pot, which includes a pot body. The pot body includes an aluminum pot and a heating band installed on the aluminum pot. The heating band includes a heating wire and a winding body. The opposite sides of the winding body are provided with winding parts. The heating wire is wound on the surface of the winding body close to the aluminum pot through the winding parts. The heating band of the energy-saving electric stew pot cannot effectively utilize the heat on the side away from the pot liner, and the heat utilization rate is low and the shell temperature rises too high, which does not meet the electrical safety regulations. SUMMARY

[0004] One of the purposes of the utility model is to provide a heating band that enhances one-way heat transfer, which solves the problem that the heat on the side away from the pot liner of the existing heating band cannot be effectively utilized.

[0005] To achieve the above-mentioned purposes of the utility model, the technical solutions adopted by the utility model are as follows:

[0006] A heating band that enhances one-way heat transfer includes a first cover sheet, a first heat insulation sheet, a heating sheet, a second heat insulation sheet and a second cover sheet stacked in sequence. It also includes a third heat insulation sheet arranged between the first heat insulation sheet and the heating sheet. The thickness of the heat insulation sheets on both sides of the heating sheet is inconsistent, so that the heat generated on the heating sheet is transferred to one side, the heat transfer is more directional, the heat utilization rate is improved, and the external temperature rise is reduced.

[0007] Further, the first and second edge bands are bent into a ring shape, and the elastic member is connected to the two ends of the first edge band, so that the size of the pot liner matched with the ring-shaped heating band is increased.

[0008] Further, the first and second edge bands are bent into a ring shape, and the elastic member is connected to the two ends of the first edge band, so that the size of the pot liner matched with the ring-shaped heating band is increased.

[0009] As preferred, the heating wire is arranged on the heating sheet, and the wire penetrates the first edge band, the first heat insulation sheet and the third heat insulation sheet and is connected to the two ends of the heating wire, so that the electric energy is converted into heat energy conveniently.

[0010] As preferred, the first and second edge bands are made of heat-conducting material, so as to transfer the heat generated by the heating wire to the pot.

[0011] As more preferred, the length of the first edge band is greater than that of the second edge band, so as to facilitate winding into different shapes for installation.

[0012] As more preferred, the heating wire is in a zigzag shape and covers the surface of the heating sheet, so as to improve the heating density.

[0013] As more preferred, the wire is sleeved with a fixing ring, the fixing ring penetrates the first edge band and forms an interference fit, so as to prevent the wire from shaking and affecting the power supply.

[0014] As more preferred, the two sides of the second edge band extend outward to surround the sides of the first edge band, the first heat insulation sheet, the third heat insulation sheet, the heating sheet and the second heat insulation sheet, so that the overall structure is compact.

[0015] The second purpose of the utility model is to provide a stew pot, which solves the problem that the existing stew pot shell has high temperature rise and does not meet the safety regulations.

[0016] To achieve the above-mentioned utility model purposes, the technical solutions adopted by the utility model are as follows:

[0017] A stew pot comprises the heating band for enhancing unidirectional heat transfer, so as to reduce the temperature rise of the stew pot shell and meet the national safety standards.

[0018] The utility model has the advantages of:

[0019] (1) The heat generating band of the enhanced one-way heat transfer is provided with heat insulation sheets on both sides of the heat generating band, and an additional heat insulation sheet is further provided on the side far from the pot liner, so that the heat transfer on both sides of the heat generating band is uneven, the heat transfer amount on the close side is improved, the heat generating sheet is covered by two edge covering bands, the heat is transferred to the pot liner through the edge covering bands, the heat is transferred by heat conduction, the heat loss is reduced, the heat transfer amount to the pot liner is greatly improved through the heat insulation sheets with different thicknesses on both sides, the heat transfer to the shell is reduced, and the shell is heated to meet the safety regulations of the electric appliance.

[0020] (2) The heat generating band of the enhanced one-way heat transfer is bent into a ring shape, the ring-shaped heat generating band is sleeved on the pot liner, and the two ends of the ring shape are connected by elastic members and hooks, so that the heat generating band is prevented from deforming and can meet the use of different specifications of the pot liner to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 An explosion view of the heat generating band of the enhanced one-way heat transfer is provided.

[0022] Figure 2 An isometric view of the heat generating band of the enhanced one-way heat transfer is provided.

[0023] Figure 3 A sectional view of the heat generating band of the enhanced one-way heat transfer is provided.

[0024] Figure 4 A sectional view of the stew pot is provided.

[0025] REFERENCE SIGNS:

[0026] 1, heat generating band; 11, first edge covering band; 12, wire; 121, fixing ring; 13, first heat insulation sheet; 14, third heat insulation sheet; 15, heat generating sheet; 151, electric heating wire; 16, second heat insulation sheet; 17, second edge covering band; 18, elastic member; 19, hook; 2, inner liner; 3, pot liner; 4, shell; 5, supporting member; 6, pot bottom. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] Embodiment one

[0029] As Figures 1-4As shown, the embodiment discloses a heat band 1 for enhancing one-way heat transfer, comprising a first edge band 11, a first heat insulation sheet 13, a heating sheet 15, a second heat insulation sheet 16 and a second edge band 17 which are stacked in sequence, and further comprising a third heat insulation sheet 14 which is arranged between the first heat insulation sheet 13 and the heating sheet 15, the heating sheet 15 can quickly heat and release heat after being electrified, the number of heat insulation sheets on both sides of the heating sheet 15 is different, and the heat insulation effect is different, so that the heat generated by the heating sheet 15 moves more to the side with fewer heat insulation sheets, achieving the effect of one-way heat transfer and improving the utilization rate of heat.

[0030] Further, it further comprises an elastic member 18, the first edge band 11 and the second edge band 17 are bent into a ring shape, the second edge band 17 is located on the inner side, the two ends of the elastic member 18 are connected with the two ends of the first edge band 11 respectively, the elastic member 18 is a spring, the two ends of the spring are provided with hooks, the hooks are penetrated into the holes in the two ends of the first edge band 11, so that the ring-shaped heat band 1 can match the inner liner 2 with different diameters.

[0031] Further, it further comprises a hook 19, the hook 19 is connected with the two ends of the first edge band 11 respectively, the hook 19 is penetrated into another group of holes in the two ends of the first edge band 11, preventing the ring-shaped heat band 1 from deforming.

[0032] Further, it further comprises a wire 12, the heating sheet 15 is provided with an electric heating wire 151, the wire 12 is penetrated through the first edge band 11, the first heat insulation sheet 13 and the third heat insulation sheet 14 and connected with the two ends of the electric heating wire 151 respectively, the wire 12 is used for inputting electric energy to the electric heating wire 151, and the electric heating wire 151 is used for directly generating heat.

[0033] Preferably, the first edge band 11 and the second edge band 17 are made of heat-conducting materials, specifically, the first edge band 11 and the second edge band 17 are made of aluminum sheets or copper sheets, which have good ductility and can be bent into different shapes.

[0034] More preferably, the length of the first edge band 11 is greater than that of the second edge band 17, and the two ends of the first edge band 11 are longer than the end portions of the second edge band 17, which are used for winding into different shapes.

[0035] More preferably, the electric heating wire 151 is in a zigzag shape and covers the surface of the heating sheet 15, so as to improve the density of the electric heating wire 151 and the heating efficiency.

[0036] Preferably, a fixing ring 121 is sleeved on the wire 12, the fixing ring 121 penetrates through the first edge band 11 and forms an interference fit, the fixing ring 121 is used for fixing the wire 12 and preventing the wire 12 from moving relative to the heating sheet 15.

[0037] More preferably, the two sides of the second edge band 17 extend outward to surround the sides of the first edge band 11, the first heat insulation sheet 13, the third heat insulation sheet 14, the heat sheet 15 and the second heat insulation sheet 16, that is, the surrounding parts of the second edge band 17 extending on the upper and lower sides surround the upper and lower sides of the first edge band 11, the first heat insulation sheet 13, the third heat insulation sheet 14, the heat sheet 15 and the second heat insulation sheet 1, so as to realize the surrounding fixation of the second edge band to the first edge band 11, the first heat insulation sheet 13, the third heat insulation sheet 14, the heat sheet 15 and the second heat insulation sheet 1, the cross section of the second edge band 17 is arranged in a "C" shape, the first edge band 11 is arranged on one side of the opening of the second edge band 17, and the heat sheet 15 and the plurality of heat insulation sheets are surrounded, the heat on the heat sheet 15 is transmitted outward through the edge band, and the heat band 1 is small in volume.

[0038] Embodiment two

[0039] The embodiment also discloses a stew pot, which comprises a heat band 1 for enhancing one-way heat transfer, an inner liner 2, a pot liner 3, an outer shell 4, a support 5 and a pot bottom 6, the outer shell 4 is arranged on the pot bottom 6, the inner liner 2 is arranged in the outer shell 4, and a space is left between the inner liner 2 and the outer shell 4, the pot liner 3 is detachably arranged in the inner liner 2, a protruding part is arranged on the outer side wall of the inner liner 2 and surrounds the center line of the pot liner 3, and the heat band 1 is connected to the protruding part, so that the heat generated by the heat band 1 is transmitted to the inner liner 2 through the protruding part, and then transmitted to the pot liner 3 by the inner liner 2, thereby completing the heating of food.

[0040] The working process of the stew pot is as follows:

[0041] After the heat sheet 15 in the heat band 1 is powered on, the electric heating wire 151 starts to work to generate heat, the heat is blocked by the first heat insulation sheet 13 and the third heat insulation sheet 14, and more heat is conducted to the second edge band 17, the second edge band 17 is in close contact with the inner liner 2, the heat of the second edge band 17 is transmitted to the pot liner 3 through the inner liner 2 after being heated, and the first edge band 11 is filled with air between the first edge band 11 and the outer shell 4, thereby playing a role in reducing heat transfer.

[0042] According to the disclosure and teaching of the above description, those skilled in the art of the utility model can also make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.

Claims

1. A heat tape for enhancing unidirectional heat transfer comprising a first overband (11), a first insulating sheet (13), a heat sheet (15), a second insulating sheet (16) and a second overband (17) stacked in that order, characterised in that: A third heat insulation sheet (14) is further included and is arranged between the first heat insulation sheet (13) and the heat sheet (15).

2. The heat band for enhancing unidirectional heat transfer according to claim 1, wherein: An elastic member (18) is further included, and two ends of the elastic member (18) are connected to two ends of the first edge band (11) respectively.

3. The heat band for enhancing unidirectional heat transfer according to claim 2, wherein: A hanging hook (19) is further included and is connected to two ends of the first edge band (11) respectively.

4. The heat band for enhancing unidirectional heat transfer according to claim 3, wherein: A wire (12) is further included, and the heat sheet (15) is provided with an electric heating wire (151), and the wire (12) is connected to two ends of the electric heating wire (151) after penetrating the first edge band (11), the first heat insulation sheet (13) and the third heat insulation sheet (14).

5. The heat band for enhancing unidirectional heat transfer according to claim 4, wherein: The first edge band (11) and the second edge band (17) are made of heat conductive material.

6. The heat band for enhancing unidirectional heat transfer according to claim 1, wherein: The length of the first edge band (11) is greater than that of the second edge band (17).

7. The heat band for enhancing unidirectional heat transfer according to claim 4, wherein: The electric heating wire (151) is in the shape of a broken line and covers the surface of the heat sheet (15).

8. The heat band for enhancing unidirectional heat transfer according to claim 4, wherein: A fixing ring (121) is sleeved on the wire (12), and the fixing ring (121) penetrates the first edge band (11) and forms an interference fit.

9. The heat band for enhancing unidirectional heat transfer according to claim 1, wherein: Two sides of the second edge band (17) extend outward to enclose the sides of the first edge band (11), the first heat insulation sheet (13), the third heat insulation sheet (14), the heat sheet (15) and the second heat insulation sheet (16).

10. A saucepan characterised in that: The heat band for enhancing unidirectional heat transfer according to any one of claims 1-9.

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