Boiler liner and cooking stove

Abstract

The utility model provides a kind of boiler inner container and cooking stove, including inner container, the inner container has accommodating cavity;With the side of inner container and accommodating cavity away from as outside, the outside of the inner container is equipped with the heating device for heating the content of accommodating cavity;The heating device includes the heat conduction plate fixed on the outside of inner container and the electric heating tube fixed on heat conduction plate.The utility model further proposes a kind of cooking stove, including furnace body and the boiler inner container described, the boiler inner container is installed in furnace body.The boiler inner container of the utility model is heated in the outside of inner container and is equipped with heating device, and heating device is fixed by the fixed cooperation of heat conduction plate and electric heating tube, and heating is uniform stable, high efficiency, and additional setting heat dissipation structure is not needed, and structure is simple and compact, and cost is low.

Description

Technical Field

[0001] This utility model relates to a boiler inner liner and a cooking stove. Background Technology

[0002] Existing internal electric heating cooking appliances, such as deep fryers, use heating elements inside the inner pot to heat the grease contained therein. However, when there is not enough oil, the heating elements cannot be fully submerged for heating, and uneven heating and charring are likely to occur. In addition, the heating elements are in direct contact with the grease, making them prone to grease residue buildup, which is difficult to clean and affects the heating effect.

[0003] Existing external heating cooking appliances, such as the electromagnetic induction heating fryer disclosed in CN209499522U, heat the oil in the fryer by setting an electromagnetic induction coil on the outside of the fryer (boiler liner). However, the electromagnetic induction coil involves a lot of circuitry. If the electromagnetic induction coil is to provide stable heating, a fan for heat dissipation and heat sinks on the circuit board are required inside the oven. This results in a large overall size and high cost for the fryer. Utility Model Content

[0004] The purpose of this utility model is to provide a boiler inner liner, including an inner liner having a cavity for cooking food; with the side of the inner liner opposite to the cavity as the outer side, a heating device for heating the contents of the cavity is provided on the outer side of the inner liner; the heating device includes a heat-conducting plate fixed on the outer side of the inner liner and an electric heating tube fixed on the heat-conducting plate.

[0005] This utility model also proposes a cooking stove, including a stove body and the aforementioned boiler liner, wherein the boiler liner is installed inside the stove body, and the cooking stove is a deep fryer, a boiling stove, or a steamer.

[0006] The boiler inner liner of this utility model has a heating device installed on the outside of the inner liner for heating. The heating device is fixedly connected with a heat-conducting plate and an electric heating tube, which provides uniform and stable heating with high efficiency. It does not require an additional heat dissipation structure, has a simple and compact structure, and is low in cost. It can be applied to cooking stoves such as fryers, boiling ovens, and steamers. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the boiler inner liner of Embodiment 1 of this utility model.

[0008] Figure 2 This is a schematic diagram of the bottom structure of the boiler inner liner according to Embodiment 1 of this utility model.

[0009] Figure 3 This is a bottom view of the boiler inner liner of Embodiment 1 of this utility model.

[0010] Figure 4 for Figure 3 A cross-sectional view of plane AA.

[0011] Figure 5 for Figure 3 A cross-sectional view of the BB plane.

[0012] Figure 6 This is a cross-sectional view of the inner liner of Embodiment 2 of this utility model.

[0013] Figure 7 This is a schematic diagram of the inner liner of Embodiment 2 of this utility model.

[0014] Figure 8 This is a schematic diagram of the boiler inner liner of Embodiment 3 of this utility model.

[0015] Figure 9 This is a schematic diagram of the internal structure of the fryer in Embodiment 4 of this utility model. Detailed Implementation

[0016] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:

[0017] Example 1

[0018] See appendix Figure 1-5 A boiler inner liner includes an inner liner 1 having a cavity 11 for cooking food; with the side of the inner liner 1 opposite to the cavity 11 as the outer side, a heating device 2 for heating the contents of the cavity 11 is provided on the outer side of the inner liner 1; the heating device 2 includes a heat-conducting plate 21 fixed on the outer side of the inner liner 1 and an electric heating tube 22 fixed on the heat-conducting plate 21.

[0019] In this technical solution, a heating device 2 is installed on the outside of the inner liner 1 of the boiler for heating. The heating device 2 is fixedly connected with the heat-conducting plate 21 and the electric heating tube 22, so the heating is uniform, stable and efficient. It does not require an additional heat dissipation structure, and the structure is simple, compact and low cost.

[0020] The electric heating tube 22 is arranged around the edge of the heat-conducting plate 21, which is conducive to rapid heat conduction.

[0021] The inner pot 1 includes a bottom wall 12, and the heating device 2 is disposed on the outside of the bottom wall 12. Heat is conducted upward through the bottom wall 12, making it suitable for cooking food with varying amounts of water or oil.

[0022] Specifically, the bottom wall 12 includes a middle section 121 and two side sections 122, with the side sections 122 respectively positioned on either side of the middle section 121, and each side section 122 inclined downwards towards the middle section 121. The heating device 2 includes two units, each positioned on the outer side of the side sections 122. Because the side sections 122 are inclined towards the middle section 121, when frying food, oil residue will fall into the middle section 121. This technical solution places the heating devices 2 on the side sections 122, creating a low-temperature zone in the middle section 121, thus preventing repeated frying of the oil residue.

[0023] In this embodiment, the heat-conducting plate 21 fixed on each side 122 covers more than 85% of the outer area of ​​the side 122, ensuring heating efficiency.

[0024] The middle portion 121 of the bottom wall 12 extends along a length direction, and the width of one end of the middle portion 121 is greater than that of the other end, forming a trapezoid. A groove 123 is provided at the narrower end of the middle portion 121, which can be used to collect oil residue during frying. The inner liner 1 also includes a side wall 13, with the bottom wall 12 located at the bottom end of the side wall 13. The top end of the side wall 13 forms a feeding port 111, i.e., the feeding port 111 is opposite to the bottom wall 12. The side wall 13 and the bottom wall 12 define a cavity 11 that communicates with the feeding port 111. A drain pipe 14 communicating with the groove 123 is provided on the side wall 13, and a switch valve 15 is provided at the output end of the drain pipe 14. When the oil is drained through the drain pipe 14 after frying, the oil residue falls into the groove 123 under the guidance of the middle portion 121, separating from the oil and facilitating oil recycling and reuse.

[0025] The bottom wall 12 is a metal plate, specifically a stainless steel plate. The heat-conducting plate 21 is an aluminum plate, which has excellent heat conduction.

[0026] The electric heating element 22 is welded to the heat-conducting plate 21. The heat-conducting plate 21 has a certain thickness to prevent perforation during welding of the heating element. Specifically, the thickness of the heat-conducting plate 21 is 5-10 mm.

[0027] The heating element is an instant heating element.

[0028] Example 2

[0029] like Figure 6 and Figure 7 As shown, a boiler inner liner differs from the first embodiment described above in that:

[0030] The middle part 121 of the bottom wall 12 of the inner liner 1 extends along a length direction, and one end of the middle part 121 is inclined downward, and the downward inclined section of the middle part 121 is connected with the two sides and the side wall to form a cavity 124; the side wall 13 is provided with a drain pipe 14 communicating with the cavity 124.

[0031] One end of the middle section 121 is inclined downward. When the food is fried and the oil is drained through the drain pipe 14, the oil residue falls into the concave cavity 124 under the guidance of the middle section 121 and is separated from the oil, which facilitates the recycling and reuse of the oil.

[0032] Example 3

[0033] like Figure 8 As shown, a boiler inner liner differs from the above embodiment 1 in that: the bottom wall 12 includes a middle part 121 and two side parts 122, the two side parts 122 are respectively located on both sides of the middle part 121; the side parts 122 are groove-shaped, and the heating device 2 is located on the outside of the middle part 121.

[0034] Example 4

[0035] A deep fryer includes a furnace body and a boiler inner liner 1 as described in Embodiment 1 or Embodiment 2 above, wherein the boiler inner liner 1 is installed inside the furnace body 3, as shown below. Figure 9 The illustration shows a deep fryer using the boiler inner liner 1 of Embodiment 1.

[0036] The furnace body 3 is provided with an electrical compartment 21 located on one side of the boiler inner liner 1, and the circuit board 32 that is electrically connected to each electric heating tube 22 is installed in the electrical compartment 31.

[0037] In use, a grid-like support (not shown in the attached diagram) is placed inside the boiler liner 1, and the support is placed on the bottom wall 12 to hold the fried food. The fried food is fried above the bottom wall 12, and the small oil residue falls through the support into the middle part 121 of the bottom wall 12.

[0038] Example 5

[0039] A water boiler includes a boiler body and a boiler liner 1 as described in Embodiment 3 above, wherein the boiler liner 1 is installed inside the boiler body.

[0040] Example 6

[0041] A steam oven includes a furnace body and a boiler liner 1 as described in Embodiment 3 above, wherein the boiler liner 1 is installed inside the furnace body. In use, a steam rack is placed inside the boiler liner 1.

[0042] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A boiler inner liner, comprising an inner liner, characterized in that: The inner liner has a cavity for accommodating food for cooking; With the side of the inner liner that is opposite to the cavity as the outer side, the outer side of the inner liner is provided with a heating device for heating the contents of the cavity. The heating device includes a heat-conducting plate fixed on the outer side of the inner liner and an electric heating tube fixed on the heat-conducting plate. The inner liner includes a bottom wall, and the heating device is disposed on the outer side of the bottom wall; The inner liner also includes a side wall, the bottom wall is located at the bottom end of the side wall, and the top end of the side wall forms a feed inlet, that is, the feed inlet is opposite to the bottom wall, and the side wall and the bottom wall define an accommodating cavity communicating with the feed inlet. The middle part of the bottom wall extends along a length direction, and the width of one end of the middle part is greater than that of the other end, forming a trapezoid. A groove is provided at the narrower end of the middle part. The side wall is provided with a drain pipe that communicates with the groove.

2. The boiler inner liner according to claim 1, characterized in that: The electric heating tube is arranged around the edge of the heat-conducting plate.

3. The boiler inner liner according to claim 1, characterized in that: The bottom wall includes a middle part and two side parts, with the two side parts standing on both sides of the middle part, and each side part sloping from top to bottom toward the middle part; The heating device is provided on the outer side of both sides.

4. The boiler inner liner according to claim 1, characterized in that: The inner liner also includes a side wall, the bottom wall is located at the bottom end of the side wall, and the top end of the side wall forms a feed inlet, that is, the feed inlet is opposite to the bottom wall, and the side wall and the bottom wall define an accommodating cavity communicating with the feed inlet. The middle part of the bottom wall extends along a length direction, and one end of the middle part slopes downward, and the downward-sloping part of the middle part connects with the two sides and the side wall to form a cavity. The side wall is provided with a drain pipe that communicates with the cavity.

5. The boiler inner liner according to claim 1, characterized in that: The bottom wall includes a middle section and two side sections, with the two side sections respectively located on both sides of the middle section; the side sections are groove-shaped, and the heating device is located on the outer side of the middle section.

6. The boiler inner liner according to any one of claims 1-5, characterized in that: The bottom wall is a metal plate, and the heat-conducting plate is an aluminum plate.

7. The boiler inner liner according to claim 6, characterized in that: The electric heating element is welded to the heat-conducting plate.

8. A cooking stove, characterized in that: It includes a furnace body and a boiler liner as described in any one of claims 1-7, wherein the boiler liner is installed in the furnace body, and the cooking appliance is a deep fryer, a boiling oven, or a steamer.

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