Heating device and heating smoking set

Abstract

The utility model discloses a heating device which comprises a heating unit, an electromagnetic coil and a heating cavity. A heating air duct is wound in the heating device, the heating unit is arranged in the heating air duct, an air outlet of the heating air duct is communicated with the bottom of the heating cavity, and a clamping unit is further arranged at the top of the heating cavity; the electromagnetic coil is arranged outside the heating unit in a winding mode, and the electromagnetic coil conducts induction heating on the heating unit in a power-on state, so that air in the heating air channel is heated. Meanwhile, the utility model further provides a heating smoking set, and compared with the prior art, the heating smoking set has the advantages that air is heated according to the electromagnetic induction principle, the heating efficiency is high, and energy consumption is low; a heating air duct of the heating element is reasonable in design, so that air is uniformly heated, and generation of harmful substances can be effectively reduced; the heating smoking set with the heating device is smaller in size and convenient to use and carry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heating cigarette technical field, especially relate to a heating device and heating smoking set. BACKGROUND

[0002] The heating non-combustion technology using air heating is the core component of the heating smoking set, the cold air inhaled is heated by using the heating assembly, and the hot air after heating is used to evaporate the tobacco products, so as to directly heat the tobacco but not produce smoke by combustion. It can not only achieve the satisfaction similar to the cigarette, but also reduce the generation and inhalation of harmful substances in the combustion process.

[0003] However, in the prior art, the smoking set using resistance heating has the following shortcomings: first, the thermal efficiency is low, the heating speed is slow, and the energy consumption is high. Second, since the heating wire needs to transfer heat to the air heating pipe, it is generally in a bare state (i.e. the surface of the heating wire is not wrapped with an insulating skin), which has a "leakage" safety problem. Third, the air heating pipe connected with the heating wire needs to use insulating materials, which affects the efficiency of air heating and also affects the effect of heat transfer from the top end of the air heating pipe to the cigarette, thereby affecting the heating efficiency of the cigarette. Fourth, the electric heating wire has a large thermal resistance, is easy to oxidize and damage, has a short service life, and has a high failure rate. Fifth, it is difficult to achieve high-temperature heating, and the heating temperature of the electric heating wire is generally less than 300 DEG C.

[0004] Therefore, it is a technical problem to be solved in the field to provide a heating device with higher heating efficiency and better overcoming the shortcomings of electric heating pipe heating, and a heating smoking set with the heating device. INVENTION CONTENTS

[0005] To solve the technical difficulties of low efficiency and insecurity in the process of heating the cigarette in the traditional resistance heating form of the heating device in the prior art, the utility model provides an electric heating device and a heating smoking set containing the device, which realizes efficient heating of air through electromagnetic induction principle, uniformly heats air through reasonable setting of the heating air duct, and reduces energy consumption and release of harmful substances.

[0006] The utility model provides a kind of heating device, specific technical solutions are as follows, comprising: heating unit, electromagnetic coil, heating cavity;

[0007] The heating device is internally wound with heating air duct, the heating unit is arranged in the heating air duct, the air outlet of the heating air duct is communicated with the bottom of the heating cavity, and the top of the heating cavity is also provided with clamping unit;

[0008] The electromagnetic coil is wound outside the heating unit, and the electromagnetic coil in the energized state inductively heats the heating unit, thereby heating the air in the heating air duct.

[0009] Preferably, the heating cavity is arranged in the center of the heating device, and the heating unit and the electromagnetic coil are arranged in the center of the heating cavity.

[0010] Preferably, the heating air duct is arranged along the central axis and symmetrically arranged outside the heating cavity.

[0011] Preferably, the bottom of the heating unit is a flat surface or an open conical shape with a gradually expanding cross section from bottom to top.

[0012] Preferably, the bottom of the heating unit is further provided with a ventilation hole, which is in communication with the bottom of the heating cavity.

[0013] Preferably, the heating unit is provided with a support column through the bottom and arranged on the heating air duct.

[0014] Preferably, the heating unit comprises an alloy formed by a main metal element raw material, and the main metal element raw material comprises iron, nickel, zinc and cobalt, and the weight percentage of each is 10.00 45.00% of iron, 40.00 70.00% of nickel, 1.00 15.00% of zinc, and 0.01 5.00% of cobalt.

[0015] Meanwhile, the utility model also provides a heating smoking set containing the heating device, and the heating smoking set further comprises a power supply, a control unit and an air inlet hole.

[0016] The power supply is electrically connected with the electromagnetic coil of the heating device to provide electric energy for heating.

[0017] The control unit is electrically connected with the electromagnetic coil to control the heating time and temperature.

[0018] The bottom of the heating device is provided with the air inlet hole, and the air inlet hole is used to introduce external air into the heating air duct for heating.

[0019] The air flow ratio of the air inlet hole air to the heating air duct air, that is, the air inlet amount of the air inlet hole divided by the air inlet amount of the heating air duct, is 0.10-0.40.

[0020] Preferably, the power supply and the control unit are arranged in the vertical direction, and the heating device is arranged in the vertical direction in sequence.

[0021] Preferably, the power supply and the control unit are arranged in the vertical direction, and the heating device is arranged in the horizontal direction in parallel.

[0022] Compared with the prior art, the beneficial effects of the technical scheme are: air heating is carried out by adopting the electromagnetic induction principle, the heating efficiency is high, and the energy consumption is low; the heating element heating air duct is reasonably designed, air heating is uniform, and the generation of harmful substances can be effectively reduced; and the heating device has a smaller volume, which is convenient for consumers to use and carry. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a schematic diagram of the heating device structure in a specific embodiment;

[0025] Figure 2 It is a schematic diagram of the heating device in a specific embodiment;

[0026] Figure 3 It is a schematic diagram of the heating device in another specific embodiment.

[0027] Specific reference signs are:

[0028] 1-heating device, 2-heating unit, 3-electromagnetic coil, 4-heating cavity, 5-heating air duct, 6-vent hole, 7-support column, 8-power supply, 9-control unit, 10-air inlet hole, 11-heated cigarette. DETAILED DESCRIPTION

[0029] In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate directions or positions based on the directions or positions shown in the drawings and are used for convenience in describing the present application and simplifying the description, and thus cannot be construed as indicating or implying that a device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or an implied indication of the number of technical features indicated. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" or "several" is two or more, unless otherwise explicitly specified.

[0033] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the content disclosed in the description, to be understood and read by those skilled in the art, and do not have technical significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0034] Please refer to Figure 1 For the technical scheme of the present application, a specific heating device 1 is described, which comprises: a heating unit 2, an electromagnetic coil 3, and a heating cavity 4.

[0035] Compared with the heating device in the prior art, the heating air duct 5 is designed in a straight-through structure, and in the present application, in order to improve the heating efficiency of air, the air can have a larger contact area with the heating unit 2 for contact heating. The heating air duct 5 is wound inside the heating device. By winding the heating air duct 5, the heating distance is increased to make the air heating efficiency higher. The heating unit 2 is arranged in the heating air duct 5 to heat the air in the heating air duct 5. The air outlet of the heating air duct 5 is in communication with the bottom of the heating cavity 4 to deliver the heated air to the heating cavity 4 for heating the articles. The heating cavity 4 is also provided with a clamping unit at the top to clamp and fix the heated cigarette 11, maintaining the efficient heating state.

[0036] In this application, the electromagnetic coil 3 is wound around the outside of the heating unit 2. When the electromagnetic coil 3 is energized, it generates a changing magnetic field around the coil carrying a changing current through the principle of electromagnetic induction. A changing current is induced inside the metal of the heating element in the changing magnetic field. The induced current flows inside the metal, specifically as eddy current. According to Ohm's law, it will generate Joule heat, i.e., power consumption, so that the heating element heats up quickly on its own, thereby heating the air in the heating duct 5.

[0037] Preferably, to ensure efficient heating of the air, the heating chamber 4 is located at the center of the heating device, such as... Figure 1 As shown, in this embodiment, the heating device is cylindrical, and the heating unit 2 and the electromagnetic coil 3 are arranged in a central surrounding manner around the outside of the heating cavity 4 to surround the heating cavity 4, so as to make the heating of the air in the heating duct 5 more uniform and efficient.

[0038] Furthermore, such as Figure 1 As shown, the heating air duct 5 is specifically arranged along its length. In this embodiment, the heating air duct 5 is divided into a first air duct and a second air duct from the outside to the inside, and is symmetrically arranged around the outside of the heating cavity 4. More specifically, the heating air duct 5 is as follows: Figure 1 As shown, the heating device 1 has an inverted U-shaped air duct.

[0039] Preferably, in order to allow the air to be heated to enter the heating air ducts 5 on both sides of the heating chamber 4 evenly, in this application, the bottom of the heating unit is a flat design, or an open cone shape with a cross-section that gradually expands from bottom to top, presenting an inverted cone design, so as to evenly distribute the air to the surrounding heating air ducts 5.

[0040] Furthermore, to avoid overheating and safety issues in the heating chamber 4, a ventilation hole 6 is provided at the bottom of the heating unit. The ventilation hole 6 is connected to the bottom of the heating chamber 4, allowing air to directly enter the heating chamber 4 to cool and dissipate heat.

[0041] As a preferred option, such as Figure 1 As shown, in this embodiment, in order to ensure that the heating unit remains fixed in the heating air duct 5, the heating unit is fixedly installed on the heating air duct 5 by means of a support column 7 at the bottom, which isolates the heating air duct 5 along the length direction to form the first air duct and the second air duct, thereby extending the heating distance of the air in the heating air duct 5 and increasing the contact area with the heating unit.

[0042] As preferred, in order to improve the efficiency of induction heating, the heating unit 2 is made of an alloy formed by a main metal element raw material, the main metal element raw material including iron, nickel, zinc, cobalt, and the weight percentage of each being iron 10.00 45.00%, nickel 40.00 70.00%, zinc 1.00 15.00%, cobalt 0.01 5.00%.

[0043] In the present application, a heating device 1 is also provided, and the structure further includes a power supply 8, a control unit 9, and an air inlet hole 10.

[0044] In the present technical solution, by integrating the heating device 1 in the heating appliance, the use experience of consumers can be improved, air heating is performed by using the electromagnetic induction principle, the heating efficiency is high, and the energy consumption is low; the heating element heating air duct 5 is reasonably designed, air heating is uniform, and the generation of harmful substances can be effectively reduced; and the heating appliance with the heating device has a smaller size, and is convenient for consumers to use and carry.

[0045] The specific connection relationship is as follows:

[0046] The power supply 8 is electrically connected with the electromagnetic coil 3 of the heating device 1, and provides electric energy for heating;

[0047] The control unit 9 is electrically connected with the electromagnetic coil 3, and is used to control the heating time and temperature;

[0048] The heating device 1 is provided with the air inlet hole 10 at the bottom, and the air inlet hole 10 is used to introduce external air into the heating air duct 5 to heat the heating cigarette 11.

[0049] Preferably, as shown in Figure 2 In a specific embodiment, the power supply 8 and the control unit 9 are combined and arranged in the vertical direction, and sequentially arranged with the heating device 1 in the vertical direction.

[0050] Preferably, as shown in Figure 3 In a specific embodiment, the power supply 8 and the control unit 9 are combined and arranged in the vertical direction, and sequentially arranged with the heating device 1 in the vertical direction.

[0051] By arranging the heating device 1, the power supply 8 and the control unit 9 side by side or sequentially, integrated processing can be facilitated, and consumers can select as needed according to actual use and provide the effect of quick taking.

[0052] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating device, characterized in that Include: Heating unit, electromagnetic coil, heating cavity; The heating device is provided with a heating air duct, the heating unit is arranged in the heating air duct, the air outlet of the heating air duct is communicated with the bottom of the heating cavity, and the top of the heating cavity is also provided with a clamping unit. The electromagnetic coil is arranged outside the heating unit, and the electromagnetic coil inductively heats the heating unit in the energized state, thereby heating the air in the heating air duct.

2. The heating device of claim 1, wherein The heating cavity is arranged in the center of the heating device, and the heating unit and the electromagnetic coil are arranged in a ring around the heating cavity.

3. The heating device of claim 2, wherein, The heating air duct is arranged along the central axis and symmetrically arranged outside the heating cavity.

4. The heating device of claim 3, wherein The bottom of the heating unit is a flat surface or an open conical shape with a cross section gradually expanding from bottom to top.

5. The heating device of claim 4, wherein, The bottom of the heating unit is also provided with a ventilation hole, which is communicated with the bottom of the heating cavity.

6. The heating device of claim 5, wherein, The heating unit is provided with a support column through the bottom and arranged on the heating air duct.

7. A heated smoking article comprising a heating device as claimed in any one of claims 1 to 6, characterised in that, The heating device also includes a power supply, a control unit and an air inlet hole. The power supply is electrically connected with the electromagnetic coil of the heating device to provide electric energy for heating. The control unit is electrically connected with the electromagnetic coil to control the heating time and temperature. The bottom of the heating device is provided with the air inlet hole, which is used to introduce external air into the heating air duct for heating. The air flow ratio of the air inlet hole air to the heating air duct air, that is, the air inlet amount of the air inlet hole divided by the air inlet amount of the heating air duct, is 0.10-0.

40.

8. The heating article of claim 7, wherein, The power supply and the control unit are arranged in a vertical direction, and the heating device is arranged in a vertical direction.

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