Electronic hookah with sheet-shaped heating device

Abstract

The invention relates to an electronic hookah with a sheet-shaped heating device, which is specifically characterized in that the electronic hookah with the sheet-shaped heating device is used for heating a tobacco material and comprises a main machine; the main machine is provided with a sheet-shaped heating body and a protective cover; the protective cover is arranged on the side, facing the tobacco material, of the sheet-shaped heating body. When heating is carried out, the sheet-shaped heating body uniformly conducts heat to the tobacco material through the protective cover and heats the tobacco material and air around the tobacco material. The problem that the temperature cannot be controlled during charcoal fire combustion heating is solved through the sheet-shaped heating body and the protective cover, the temperature can be conveniently controlled, meanwhile, tobacco materials can be evenly heated, and therefore the problems that tobacco is burnt due to the too high charcoal fire combustion temperature and the smoke amount is insufficient due to the too low charcoal fire combustion temperature are solved; and the electronic hookah can be rapidly heated, so that enough smoke amount is generated, and both the temperature and the smoke quality are controllable.

Description

Technical Field

[0001] The invention relates to the technical field of hookahs, and in particular to an electronic hookah with a sheet-shaped heating device. Background Art

[0002] Electronic hookah is a type of water-heating device with an inverted heating pot, which is called "Arabic hookah" in the industry. Electronic hookah generally includes a bowl for holding tobacco or tobacco paste, and a sheet-shaped heating device for heating.

[0003] The existing electronic hookah heating method generally uses charcoal burning, but the charcoal burning heating method can only slowly increase the temperature, wasting the user's time. When the charcoal burning temperature rises too high, the tobacco will be burned. If the charcoal fire temperature is too low, the smoke volume will be insufficient. Summary of the invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide an electronic hookah with a sheet-shaped heating device that overcomes the above problems or at least partially solves the above problems.

[0005] An electronic hookah with a sheet-shaped heating device, the electronic hookah with the sheet-shaped heating device is used to heat tobacco materials, and comprises a host; the host is provided with a sheet-shaped heating element and a protective cover;

[0006] The protective cover is provided on the side of the sheet-like heating element facing the tobacco material;

[0007] When heating is performed, the sheet-shaped heating element evenly conducts heat to the smoke material through the protective cover and heats the smoke material and surrounding air.

[0008] Preferably, it further comprises a second component for accommodating the smoking material, and the host is connected to the second component;

[0009] The smoke material is arranged opposite to the heating surface of the sheet-shaped heating element.

[0010] Preferably, the main unit is provided with a cavity for accommodating the tobacco material, and the tobacco material is arranged opposite to the sheet-like heating element.

[0011] Preferably, the main unit and the second component are connected and cooperate with each other to form a cavity for accommodating the tobacco material;

[0012] The smoke material is arranged opposite to the heating surface of the sheet-shaped heating element.

[0013] Preferably, the sheet heating element is made by thick mold printing and low temperature glazing.

[0014] Preferably, the thermal insulation assembly comprises a thermal insulation bracket and a thermal insulation body; the thermal insulation body is provided on the side of the thermal insulation bracket away from the sheet-like heating element.

[0015] Preferably, the sheet-like heating element and the protective cover are installed in the thermal insulation bracket, and opposite surfaces of the sheet-like heating element and the protective cover are respectively exposed to the thermal insulation bracket.

[0016] Preferably, a first thermal insulation sheet and a second thermal insulation sheet for thermal insulation are provided between the thermal insulation body and the thermal insulation bracket.

[0017] Preferably, the first heat insulation sheet and the second heat insulation sheet are fixed by a support block.

[0018] Preferably, the sheet-shaped heating element is made of super thermal conductive material.

[0019] Preferably, the sheet-like heating element comprises a temperature sensing device; one end of the temperature sensing device is fixedly connected to the sheet-like heating element.

[0020] Preferably, the sheet-like heating element is provided with a first air hole, and the protective cover is provided with a second air hole.

[0021] The present application specifically includes the following advantages:

[0022] In the embodiments of the present application, relative to the prior art that "charcoal fire combustion heating cannot control the temperature", the present application provides a solution of "heating device", specifically: the electronic hookah of the sheet heating device is used to heat the tobacco material, including a host; the host is provided with a sheet heating element and a protective cover; the sheet heating element is provided with the protective cover on the side facing the tobacco material; when heating, the sheet heating element evenly transfers heat to the tobacco material through the protective cover and heats the tobacco material and the surrounding air. The problem that charcoal fire combustion heating cannot control the temperature is solved by "sheet heating element and protective cover", and the temperature can be easily controlled while the tobacco material can be evenly heated, thereby avoiding the problem of too high charcoal fire combustion temperature burning tobacco and too low charcoal fire temperature causing insufficient smoke. In addition, the present application can heat the electronic hookah quickly, thereby generating enough smoke, and both the temperature and smoke quality can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 The figure is a schematic diagram of the structure of an electronic hookah of the present invention.

[0025] Figure 2The present invention is a schematic structural diagram of an electronic hookah and a container.

[0026] Figure 3 The present invention is a three-dimensional cross-sectional schematic diagram of an electronic hookah.

[0027] Figure 4 This is a schematic structural diagram of an electronic hookah with a sheet-shaped heating device according to the present invention.

[0028] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the heating device shown.

[0029] Figure 6 The invention is a schematic structural diagram of a sheet heating element of an electronic hookah of a sheet heating device.

[0030] Figure 7 The present invention is a schematic structural diagram of a mica sheet component of an electronic hookah with a sheet-shaped heating device.

[0031] Figure 8 Based Figure 7 Schematic diagram of the split structure of the mica sheet assembly shown.

[0032] Fig. 9 The overall structural schematic diagram of an electronic hookah with a sheet-shaped heating device according to the present invention.

[0033] Fig.10 This is a schematic structural diagram of a second heat-insulating sheet of an electronic hookah of a sheet-shaped heating device of the present invention.

[0034] Fig.11 This is a schematic structural diagram of a mica sheet assembly and a sheet heating element of an electronic hookah of a sheet heating device of the present invention.

[0035] Fig.12 The present invention is a schematic structural diagram of a protective cover for an electronic hookah of a sheet-shaped heating device.

[0036] Fig.13 The present invention is a schematic structural diagram of a protective cover and a sheet heating element of an electronic hookah of a sheet heating device.

[0037] Fig.14 The figure is a schematic diagram of the structure of an electronic hookah of the present invention.

[0038] Fig.15 The figure is a schematic diagram of the structure of an electronic hookah of the present invention.

[0039] Fig.16 The figure is a schematic diagram of the structure of an electronic hookah of the present invention.

[0040] 100, electronic hookah; 1, host; 11, first component; 110, upper shell; 111, upper bracket; 112, battery compartment; 113, main control board; 114, first air inlet; 12, second component; 120, second air inlet; 121, air outlet; 122, atomizer; 1220, third air outlet; 13, first air duct; 14, second air duct; 2, container; 3, heating device; 30, heating assembly; 300, sheet heating element; 3001, first air hole; 30 1. Connecting wire; 31. Protective cover; 310. Second air hole; 32. Heat insulation assembly; 320. Heat insulation bracket; 3201. Heat insulation ring; 3202. Protrusion; 3203. Block; 3204. Connecting column; 321. Heat insulation body; 3205. Positioning hole; 322. Mica sheet assembly; 3220. First heat insulation sheet; 3221. Second heat insulation sheet; 3222. Support tube; 3223. Air hole; 3223. Fixing frame; 323. Heat insulation cover; 33. Temperature sensing device. DETAILED DESCRIPTION

[0041] In order to make the objects, features and advantages of the present application more obvious and understandable, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0042] The inventors analyzed the prior art and found that the existing electronic hookah heating method generally uses charcoal burning, but the charcoal burning heating method can only slowly increase the temperature, wasting the user's time. When the charcoal burning temperature rises too high, the tobacco will be burned. If the charcoal fire temperature is too low, the amount of smoke will be insufficient. In order to enable the electronic hookah to better control the temperature, the present application adopts an electrically controlled sheet heating element for processing.

[0043] Reference Figure 1 , shows a schematic structural diagram of an electronic hookah with a sheet heating device of the present invention, which may specifically include the following structure: the electronic hookah with the sheet heating device is used to heat tobacco, and includes a host; the host is provided with a sheet heating element and a protective cover; the protective cover is provided on the side of the sheet heating element facing the tobacco; when heating, the sheet heating element evenly transfers heat to the tobacco through the protective cover and heats the tobacco and the surrounding air.

[0044] In the embodiments of the present application, relative to the prior art that "charcoal fire combustion heating cannot control the temperature", the present application provides a solution of "heating device", specifically: the electronic hookah of the sheet heating device is used to heat the tobacco material, including a host; the host is provided with a sheet heating element and a protective cover; the sheet heating element is provided with the protective cover on the side facing the tobacco material; when heating, the sheet heating element evenly transfers heat to the tobacco material through the protective cover and heats the tobacco material and the surrounding air. The problem that charcoal fire combustion heating cannot control the temperature is solved by "sheet heating element and protective cover", and the temperature can be easily controlled while the tobacco material can be evenly heated, thereby avoiding the problem of too high charcoal fire combustion temperature burning tobacco and too low charcoal fire temperature causing insufficient smoke. In addition, the present application can heat the electronic hookah quickly, thereby generating enough smoke, and both the temperature and smoke quality can be controlled.

[0045] Next, an electronic hookah having a sheet-shaped heating device in this exemplary embodiment will be further described.

[0046] In the embodiment of the present application, a second component 12 for accommodating the tobacco material is further included, and the main unit is connected to the second component 12; the tobacco material is arranged opposite to the heating surface of the sheet heating element. Figure 14-16 shown.

[0047] As an example, the host 1 and the second component 12 are detachably connected, the second component can be arranged below the host 1, and the second component 12 can also be arranged on one side of the host 1.

[0048] As an example, the host 1 is fixedly connected to the second component 12 , and the second component 12 can be arranged below the host 1 , or the second component 12 can be arranged on one side of the host 1 .

[0049] As an example, the host 1 is hinged to the second component 12 , and the second component 12 can be arranged below the host 1 , or the second component 12 can be arranged on one side of the host 1 .

[0050] In the embodiment of the present application, the host 1 is provided with a cavity for accommodating the tobacco material, and the tobacco material is arranged opposite to the sheet heating element 300, that is, a cavity for placing the tobacco material is provided inside the host 1. In the host 1, the tobacco material can be fixed in the host 1, and the tobacco material can also be detachably placed in the host 1.

[0051] In the embodiment of the present application, the main unit 1 is connected to the second component 12 and cooperates with each other to form a cavity for accommodating the tobacco material; the tobacco material is arranged opposite to the heating surface of the sheet heating element 300 .

[0052] As an example, the host 1 forms half of a cavity for accommodating the tobacco material, and the second component 12 forms half of a cavity for accommodating the tobacco material, and the two together form an electronic hookah.

[0053] In the embodiments of the present application, Fig.11 and Fig.13 As shown, the host is provided with a sheet heating element 300 and a protective cover 31; the protective cover 31 is provided on the side of the sheet heating element 300 facing the tobacco material; the shape of the protective cover 31 is adapted to the shape of the sheet heating element 300, the protective cover 31 wraps the sheet heating element 300, and the protective cover 31 is a steel cover.

[0054] As an example, the protective cover 31 is circular, such as Fig.12 As shown, the protective cover 31 has a side wall greater than the height of the sheet heating element 300, and the side wall can effectively wrap the sheet heating element 300. The protective cover 31 of the sheet heating element 300 is mainly used to protect the sheet heating element from the influence of the external environment, thereby extending the service life of the sheet heating element. The specific functions include: preventing dust and dirt from adhering: the sheet heating element will generate a lot of heat during operation. If dust and dirt adhere to the surface of the sheet heating element, it will affect the heat dissipation effect, causing the sheet heating element to overheat and shorten the service life. The protective cover can effectively block the entry of dust and dirt and keep the surface of the sheet heating element clean. Prevent oxidation and corrosion: the sheet heating element will generate high temperature during operation. If exposed to the air, it is easy to react with oxygen, resulting in oxidation and corrosion. The protective cover can isolate the air, reduce the possibility of oxidation and corrosion, and thus extend the service life of the sheet heating element. Improve safety: the protective cover can prevent operators from directly contacting the sheet heating element, reduce the risk of burns and electric shocks, and improve work safety. The protective cover 31 of the sheet heating element 300 plays an important role in protecting the sheet heating element 300 , extending the service life, and improving safety.

[0055] In a specific embodiment, the sheet heating element 300 also heats the air. The principle of atomization is that the air is heated through the first air hole 3001 on the sheet heating element 300 and then enters the tobacco chamber through the third air hole 1220 on the pot body 1. The tobacco material is heated to a specified temperature by the hot air, and then the cold air at the bottom is blown onto the hot tobacco material to form hot and cold convection to produce smoke. The sheet heating element 300 heats the air and introduces it into the tobacco chamber through the first air hole 3001 and the third air hole 1220, thereby heating the tobacco material to produce smoke. The principle of this atomization is to use the convection between hot air and cold air to produce smoke.

[0056] Specifically, the sheet heating element 300 heats the air so that the temperature of the air increases. Then, the heated air enters the cigarette bin through the first air hole 3001. Since the tobacco material in the cigarette bin has been placed in advance, the heated air will contact the tobacco material. Since the temperature of the tobacco material is relatively low, the hot air will transfer heat to the tobacco material, causing the temperature of the tobacco material to increase. At the same time, the cold air at the bottom is introduced into the cigarette bin through the third air hole 1220. After the cold air contacts the hot tobacco material, due to the low temperature, the hot tobacco material will transfer heat to the cold air, thereby forming hot and cold convection. This hot and cold convection will produce smoke, so that the components in the tobacco material are evaporated and form smoke. The sheet heating element 300 achieves the purpose of atomization by heating the air and using hot and cold convection to generate smoke. This atomization principle can effectively evaporate the components in the tobacco material and form smoke, thereby improving the smoking experience.

[0057] In an embodiment of the present application, the sheet heating element 300 is made by thick mold printing and low-temperature glazing. The sheet heating element 300 is made by thick mold printing and low-temperature glazing, which means that the heating material is printed on a substrate using thick mold printing technology, and then sintered at a lower temperature so that the heating material is firmly combined with the substrate to form a device with a heating function. This technology can improve the accuracy and uniformity of the sheet heating element 300, while reducing production costs and energy consumption. Specifically, the sheet heating element 300 is first made of an insulating layer on the metal sheet and then a thick film is printed on the heating circuit, preferably with a layer of bottom temperature glaze covering it. The sheet heating element 300 can also be replaced by other heat sources, such as ceramic heating sheets, metal etching sheets, silicon carbide heating sheets, etc.

[0058] As an example, the sheet heating element 300 is made of a superconducting material. Specifically, the sheet heating element 300 is a SUS430 superconducting material. SUS430 is a ferritic stainless steel with good corrosion resistance and high temperature strength. Due to its unique crystal structure and chemical composition, SUS430 has excellent oxidation resistance and corrosion resistance while maintaining high thermal conductivity. Therefore, SUS430 is widely used in various occasions requiring efficient heat transfer and corrosion resistance, such as heat exchangers, heaters, condensers, etc. The thermal conductivity of SUS430 is about 16.7W / (m·K), which is lower than that of traditional metal materials such as copper and aluminum, but higher than that of stainless steel and other ferritic stainless steels. Therefore, SUS430 is an ideal superconducting material. However, the thermal conductivity of SUS430 will be affected by its surface state and processing technology. Therefore, when SUS430 is selected as a superconducting material, the present application adopts appropriate surface treatment and processing by thick mold printing and low-temperature glaze firing. Superconducting materials refer to materials with high thermal conductivity in the superconducting state. Superconductivity refers to the phenomenon that the resistance of a material suddenly drops to zero below a certain critical temperature. In this state, the material can transfer heat without loss. Superconducting materials are mainly used for efficient heat transfer and heat dissipation management. Common superconducting materials include metals with high conductivity such as silver, copper, and aluminum, as well as some alloys and compounds such as niobium-titanium alloy and niobium-tin alloy. In recent years, new materials such as graphene have also attracted widespread attention due to their excellent thermal conductivity.

[0059] In the embodiment of the present application, the heat insulation assembly 32 includes a heat insulation bracket 320 and a heat insulation body 321 ; the heat insulation body 321 is provided on the side of the heat insulation bracket 320 away from the sheet-like heating element 300 .

[0060] As an example, Fig. 9 As shown, the heat insulation bracket 320 includes a circular heat insulation ring 3201 and a tongue-shaped protrusion 3202 protruding from one side of the heat insulation ring 3201. A plurality of connecting posts 3204 extend from the side of the heat insulation ring 3201 away from the protrusion 3202. The protrusion 3202 protrudes to the side opposite to the heat insulation cover 323, and the block 3203 of the opening and closing structure of the host 1 is arranged on the outer surface of the protrusion 3202. The plurality of connecting posts 3204 correspond to the plurality of positioning holes 3205 one by one and pass through the heat insulation body 3201 from the corresponding positioning holes 3205 to play a supporting role. A plurality of fixing holes are arranged at the outer edge of the heat insulation bracket 320.

[0061] In a specific embodiment, the protrusion 3202 is used to connect to the component of the host containing the tobacco material.

[0062] In the embodiment of the present application, a heat insulation sheet assembly 322 is provided between the heat insulation body 321 and the heat insulation bracket 320; the heat insulation sheet assembly 322 includes a first heat insulation sheet 3220 and a second heat insulation sheet 3221, and the first heat insulation sheet 3220 and the second heat insulation sheet 3221 are fixed by a support block. The first heat insulation sheet 3220 and the second heat insulation sheet 3221 are both used for heat insulation. The sheet heating body 300 is isolated from the battery and the motherboard to prevent short circuit. The heat insulation sheet assembly 322 can be a mica sheet. The heat insulation sheet assembly 322 includes a first heat insulation sheet 3220 and a second heat insulation sheet 3221, which are fixed by a support block. The first heat insulation sheet 3220 and the second heat insulation sheet 3221 are both used for heat insulation to prevent the sheet heating body 300 from short circuiting with the battery and the motherboard. The heat insulation sheet assembly 322 can be a mica sheet, but it can also be other materials with good heat insulation properties.

[0063] In a specific embodiment, if Fig.10 As shown, the mica sheet assembly 322 is usually used in electronic devices as a heat dissipation material. They can be set on one side of the sheet heating element to help dissipate heat and prevent the device from overheating. The mica sheet assembly 322 of the present application is used as a thermal interface material, which is placed on one side of the sheet heating element 300 as a thermal interface material and is spaced a certain distance from the sheet heating element 300. The gap between the sheet heating element 300 and the heat insulator 321 can be filled to improve the heat conduction efficiency and reduce thermal resistance.

[0064] In the embodiment of the present application, the sheet heating element 300 includes a temperature sensing device 33; one end of the temperature sensing device 33 is fixedly connected to the sheet heating element 300. The temperature sensing device 33 is a temperature measuring element commonly used in temperature measuring instruments, which directly measures the temperature and converts the temperature signal into a thermoelectric potential signal, which is converted into the temperature of the measured medium through an electrical instrument.

[0065] The present application also includes an electronic hookah, which includes a second component and an electronic hookah of the sheet-like heating device as described above, wherein the electronic hookah of the sheet-like heating device is connected to the second component; the second component is provided with a cavity for accommodating tobacco material, and the tobacco material is arranged opposite to the sheet-like heating element.

[0066] The present application also includes an electronic hookah, which includes the electronic hookah with the sheet-like heating device, and the main unit is provided with a cavity for accommodating tobacco material, and the tobacco material is arranged opposite to the sheet-like heating element.

[0067] In the embodiments of the present application, Figure 1 , Figure 2 and Figure 3 As shown, the electronic hookah 100 comprises a main unit 1, a container 2, and a heating device 3. The container 2 is assembled with the main unit 1 to contain filtered liquid.

[0068] In a specific embodiment, the host 1 includes a first component 11, a second component 12, a first air channel 13, and a second air channel 14. The first component 11 and the second component 12 can be combined together in an openable and closable manner, the first air channel 13 connects the first component 11 and the second component 12, and the second air channel 14 runs through the second component 12.

[0069] In a specific embodiment, the first component 11 includes an upper shell 110, an upper bracket 111, a battery compartment 112, a main control board 113, and a first air inlet 114. The upper bracket 111 is mounted on the upper shell 110, and the battery compartment 112 is disposed on one side of the upper bracket 111.

[0070] In a specific embodiment, the second component 12 is provided with an atomizing pot 122 for loading tobacco, a second air inlet 120, and an air outlet 121. The atomizing pot 122 is provided with a third air hole 1220. The second air passage 14 passes through the second air inlet 120, the third air hole 1220 and the air outlet 121 in sequence.

[0071] As an example, the heating device 3 is disposed on the first component 11 and installed on a side of the upper bracket 111 away from the battery compartment 112. The battery compartment 112 is provided with a battery to provide power to the main control board 113.

[0072] In the embodiments of the present application, Figure 4 As shown, the heating device 3 includes a heating component 30, a protective cover 31, a temperature sensing device 33, and a heat insulation component 32. The heating component 30 and the temperature sensing device 33 are electrically connected to the main control board 113 of the host 1. One side of the heating component 30 is covered by the protective cover 31, and the temperature sensing device 33 is arranged on the other side opposite to the heating component 30, and the heat insulation component 32. The heating device 3 is used to heat the atomizer 122 so that the tobacco material forms smoke for smoking. The heating component 30 is used to generate heat, the temperature sensing device 33 is used to measure the temperature of the heating component 30, the protective cover 31 is used to protect the heating component 30, and the heat insulation component 32 is used to prevent the heat of the heating component 30 from being transmitted to the outside.

[0073] In a specific embodiment, the temperature sensing device 33 can be a thermocouple, NTC (negative temperature coefficient thermistor), TCR (temperature coefficient resistor) or infrared component, or the temperature sensing device 33 may not be used, and the temperature may be directly calculated using the software timing method. If the temperature sensing device 33 is used, when the temperature changes, the resistance of the temperature sensing device 33 will also change. By detecting the change in the resistance of the temperature sensing device 33, the temperature change can be calculated. The change in the resistance of the temperature sensing device 33 can be converted into a digital signal by an analog-to-digital converter (ADC), and then processed by a microcontroller (MCU) to calculate the temperature change. If the temperature sensing device 33 is not used, the temperature may be directly calculated using the software timing method. The software timing method calculates the change in temperature by recording the passage of time. For example, the time interval between two time points can be recorded, and then the change in temperature can be calculated based on the change in the time interval. This method can be used to calculate temperature changes, but the accuracy is low and it can usually only be used for rough temperature measurement.

[0074] In a specific embodiment, the temperature sensing device 33 may also be a temperature sensing circuit. A temperature sensing circuit is a circuit made of a temperature sensing material. When the temperature changes, the temperature sensing material undergoes physical or chemical changes, thereby changing the resistance value or other electrical parameters of the temperature sensing circuit. The temperature sensing circuit can be used for temperature detection and control.

[0075] In the embodiments of the present application, Figure 4 and Figure 6 As shown, the heating component 30 includes a sheet heating element 300 that is roughly disc-shaped, and a connecting wire 301 extending from the sheet heating element 300 to the battery. The heating component 30 is electrically connected to the main control board 113 through the connecting wire 301. The sheet heating element 300 is formed into a specific pattern by post-mold printing and low-temperature glazing. In the present embodiment, the sheet heating element 300 is in a planar spiral shape. In the present embodiment, the sheet heating element 300 forms a semi-closed symmetrical pattern with notches at the connecting wire 301 and the temperature sensing device 33. In the present embodiment, the sheet heating element 300 uses SUS430 superconducting material as the heating material. In the present embodiment, the sheet heating element 300 is provided with a plurality of first air holes 3001, and the first air holes 3001 are used for the circulation of gas.

[0076] In a specific embodiment, the protective cover 31 is fixed to the heat insulation assembly 32 by a fixing member. The protective cover 31 covers one side of the sheet heating element and the atomizer pot to prevent the sheet heating element 1300 from being directly exposed to the outside and damaged. In this embodiment, the protective cover 131 is made of stainless steel. The protective cover 31 is disc-shaped, the shape is adapted to the sheet heating element 300, and covers the sheet heating element 300. The protective cover 31 is also provided with a plurality of second air holes 310. The first air hole 3001, the second air hole 310, and the third air hole 1330 are located on the path through which the first air duct 13 passes. The first air duct 13 passes through the air inlet 114, the first air hole 3001, the second air hole 310, the third air hole 1330 and the air outlet 121 in sequence.

[0077] In a specific embodiment, the first air holes 3001 of the sheet heating element 300 and the second air holes 310 of the protective cover 31 are designed the same, so that the first air holes 3001 and the second air holes 310 can be aligned.

[0078] In this embodiment, the screws are sequentially passed through the second air holes 310 at the edge of the protective cover 31 and the corresponding first air holes 3001 of the sheet heating element 300, and are fixed to the first heat insulating sheet 3220 with nuts. A stainless steel tube (not shown) is put on the screws between the sheet heating element 300 and the first heat insulating sheet 3220 to prevent the screws from being damaged by oxidation.

[0079] In a specific embodiment, if Figure 7 and Figure 8 As shown, the heat insulation assembly 32 includes a heat insulation bracket 320, a heat insulation body 321, a mica sheet assembly 322, and a heat insulation cover 323. The mica sheet assembly 322 is located between the heat insulation bracket 320 and the heat insulation body 321. The heat insulation body 321 is arranged opposite to the heat insulation bracket 320. The heat insulation cover 323 surrounds the heat insulation bracket 320 and faces the protective cover 31.

[0080] In a specific embodiment, the heat insulator 321 is roughly disc-shaped, and the heat insulator 321 is concave on the side opposite to the mica sheet assembly 322, so as to form a certain distance from the outside, further preventing heat from being transferred to the outside. The heat insulator 321 is also provided with a plurality of positioning holes 3205 and a plurality of fixing holes (not shown) at intervals near the edge. The heat insulator 321 is made of silicone material.

[0081] In a specific embodiment, the heat insulation bracket 320 includes a circular heat insulation ring 3201 and a tongue-shaped protrusion 3202 protruding from one side of the heat insulation ring 3201. A plurality of connecting posts 3204 extend from the side of the heat insulation ring 3201 away from the protrusion 3202. The protrusion 3202 protrudes to the side opposite to the heat insulation cover 323, and the block 3203 of the opening and closing structure of the host 1 is arranged on the outer surface of the protrusion 3202. The plurality of connecting posts 3204 correspond to the plurality of positioning holes 3205 one by one and pass through the heat insulation body 3201 from the corresponding positioning holes 3205 to play a supporting role. A plurality of fixing holes are arranged at the outer edge of the heat insulation bracket 320.

[0082] In a specific embodiment, the heating element 30 is located in the middle of the heat insulating ring 3201 and is surrounded by the heat insulating ring 3201. The sheet heating element 300 and the protective cover 31 are installed in the heat insulating bracket 320 and the opposite sides of the sheet heating element 300 and the protective cover 31 are exposed to the heat insulating bracket 320 respectively.

[0083] In the embodiment of the present application, the fixing hole of the heat insulation bracket 320 is semicircular and matches the fixing hole of the heat insulation bracket 320. The heat insulation bracket 320 and the heat insulation body 321 are fixed together by the fixing piece and the corresponding fixing hole.

[0084] In a specific embodiment, the heat insulation cover 323 is an annular body, which is covered on the end surface of the heat insulation bracket 320, further isolating the heat of the heating component 30, and also covering the fixing parts and the gap. In this embodiment, the heat insulation cover 323 is made of silicone material. In this embodiment, the bottom of the heat insulation cover 323 covers the end surface of the heat insulation bracket 320, and extends vertically from the bottom outer edge to one side of the heat insulation body 321 to the outer wall surrounding the heat insulation bracket 320.

[0085] In a specific embodiment, the mica sheet assembly 322 includes a first heat insulation sheet 3220 and a second heat insulation sheet 3221 which are arranged in parallel and at intervals, a support tube 3222 located between the first heat insulation sheet 3220 and the second heat insulation sheet 3221, and a fixing frame 3223. The cross-sections of the first heat insulation sheet 3220 and the second heat insulation sheet 3221 are circular. The first heat insulation sheet 3220 is close to the heating component 30, the second heat insulation sheet 3221 is close to the insulation body 1321, and the diameter of the second heat insulation sheet 13221 is larger than the diameter of the first heat insulation sheet 3220. The first heat insulation sheet 3220 is provided with an air hole 3223 for the heating component 130 to circulate. The fixing frame 3223 is roughly in the shape of a cover with a hole in the top, the top covers the first heat insulation sheet 3220, and the bottom is supported by the second heat insulation sheet 3221. In this embodiment, the support tube 3222 includes a connecting tube (not shown) and platforms (not shown) extending from both ends of the connecting tube toward the first heat insulating sheet 3220, so that a groove is formed in the middle of the support tube 3222. The first heat insulating sheet 3220 is embedded in the groove, making the first heat insulating sheet 3220 more stable.

[0086] In a specific embodiment, if Figure 6 As shown, one end of the temperature sensing device 33 is bonded to the sheet heating element 300, and the other end is electrically connected to the main control board 113. The temperature sensing device 33 measures the temperature value of the sheet heating element 300 and transmits the temperature value to the main control board 113 to achieve precise temperature control. In this embodiment, the temperature sensing device 33 is a K-type temperature sensing device. As a temperature sensor, the K-type temperature sensing device can measure the surface temperature of liquid vapor and gas medium and solid in the range of 0°C to 1300°C in various production processes.

[0087] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0088] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0089] The electronic hookah with a sheet heating device provided by the present invention is introduced in detail above. The principle and implementation mode of the present invention are explained by using specific examples in this article. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An electronic hookah with a sheet-shaped heating device, the electronic hookah with the sheet-shaped heating device is used to heat tobacco material, characterized in that: It comprises a host; the host is provided with a sheet-shaped heating element and a protective cover; The protective cover is provided on the side of the sheet-like heating element facing the tobacco material; When heating is performed, the sheet-shaped heating element evenly conducts heat to the smoke material through the protective cover and heats the smoke material and surrounding air.

2. The electronic hookah of the sheet-shaped heating device according to claim 1, characterized in that: It also includes a second component for accommodating the tobacco material, and the host is connected to the second component; The smoke material is arranged opposite to the heating surface of the sheet heating element.

3. The electronic hookah of the sheet-shaped heating device according to claim 1, characterized in that: The main unit is provided with a cavity for accommodating tobacco material, and the tobacco material is arranged opposite to the sheet-shaped heating element.

4. The electronic hookah of the sheet-shaped heating device according to claim 2, characterized in that: The main unit and the second component are connected and cooperate with each other to form a cavity for accommodating the tobacco material; The smoke material is arranged opposite to the heating surface of the sheet heating element.

5. The electronic hookah of the sheet-shaped heating device according to any one of claims 1 to 4, characterized in that: The sheet-shaped heating element is made of super thermal conductive material.

6. The electronic hookah of the sheet-shaped heating device according to claim 5, characterized in that: The sheet-like heating element is made by thick mold printing and low-temperature glazing.

7. The electronic hookah of the sheet-shaped heating device according to any one of claims 1 to 4, characterized in that: The heat insulation component comprises a heat insulation bracket and a heat insulation body; the heat insulation body is arranged on the side of the heat insulation bracket away from the sheet-like heating body.

8. The electronic hookah of the sheet-shaped heating device according to claim 7, characterized in that: The sheet-like heating element and the protective cover are installed in the thermal insulation bracket, and the opposite sides of the sheet-like heating element and the protective cover are respectively exposed to the thermal insulation bracket.

9. The electronic hookah of the sheet-shaped heating device according to claim 7, characterized in that: A first heat insulation sheet and a second heat insulation sheet for heat insulation are arranged between the heat insulation body and the heat insulation bracket.

10. The electronic hookah of the sheet-shaped heating device according to any one of claims 1 to 9, characterized in that: The sheet-like heating element comprises a temperature sensing device; one end of the temperature sensing device is fixedly connected to the sheet-like heating element.

11. The electronic hookah of the sheet-shaped heating device according to any one of claims 1 to 9, characterized in that: The sheet-shaped heating element is provided with a first air hole, and the protective cover is provided with a second air hole.

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