CN108968164B - A dual-mechanism contact tobacco baking device - Google Patents

Abstract

The invention provides a contact tobacco baking device with double mechanisms, which comprises a shell, a heating cavity, a tobacco accommodating cavity, an electric heating body, carbon fuel and a heat conducting element, wherein the heating cavity is arranged in the shell, the electric heating body is arranged in the heating cavity, the carbon fuel is arranged at the far-end of the tobacco baking device, the heating cavity is arranged at the near-end of the tobacco baking device, the tobacco accommodating cavity is provided with an opening which is directly communicated with the outside, the far-end of the heat conducting element basically penetrates through the carbon fuel, the near-end of the heat conducting element penetrates through the bottom of the tobacco accommodating cavity and protrudes out of the bottom of the tobacco accommodating cavity by a certain length to contact tobacco products inserted into the tobacco accommodating cavity, the electric heating body is used for heating the carbon fuel and enabling the carbon fuel to burn quickly, and the heat conducting element is used for transferring heat of the heating cavity into the tobacco accommodating cavity. The invention has the dual heating mechanisms of fuel heating and electric heating, has rapid temperature rise and stable temperature control, overcomes a plurality of defects of the tobacco baking device with a single heating mechanism at present, and brings better consumption experience for consumers.

Description

A dual-mechanism contact tobacco baking device

Technical field

The invention relates to a tobacco baking and smoking device, specifically a dual-mechanism contact tobacco baking device.

Background technique

At present, heat-not-burn tobacco baking and smoking products come in many forms, divided according to the source of heat sources, including electric heating and carbon heating. The electric heating tobacco baking and smoking device converts electrical energy into thermal energy to provide sufficient heat for smoking tobacco materials, while the heat of the carbon heating tobacco baking and smoking device is directly generated by burning carbonaceous fuel. These two heating forms are different. There are advantages and disadvantages: the electric heating tobacco baking and smoking device heats up quickly, but it requires a certain waiting time to charge after the power is consumed. The carbon-heated tobacco baking and smoking device is easy to operate, gets rid of the limitation of power supply, and has no waiting time for charging. However, its early heating process is slow and requires a certain amount of time to warm up. It can be seen that these two heating forms of tobacco baking The functional advantages and disadvantages of the devices are obviously complementary. If they are integrated into one type of product, it is expected that the respective inconvenience problems can be solved.

Contents of the invention

The present invention provides a dual-mechanism contact tobacco baking device, which provides consumers with a portable device that heats up quickly and has an alternative heat source. It is used to heat without burning and use solid thermal conductive elements to directly contact tobacco substances. Curing tobacco substances creates tobacco flavor.

A dual-mechanism contact tobacco baking device, including a shell, a heating cavity located inside the shell, and a tobacco containing cavity. The heating cavity is located at the distal end of the tobacco curing device, and the tobacco containing cavity is located at the distal end of the tobacco curing device. At the proximal end of the tobacco baking device, the tobacco containing cavity has an opening directly connected to the outside world, and is characterized in that it also includes an electric heating element, a carbon fuel, and a carbon fuel located in the heating cavity and connected to the heating cavity. and a thermally conductive element of the tobacco containing cavity, the distal end of the thermally conductive element substantially penetrates the carbon fuel, the proximal end of the thermally conductive element penetrates from the bottom of the tobacco containing cavity and protrudes inward for a certain length to contact the insertion For the tobacco product in the grass accommodation cavity, the electric heating element is used to heat the carbon fuel and burn it rapidly, and the thermal conductive element is used to transfer the heat of the heating cavity into the tobacco accommodation cavity.

Further, it also includes a control circuit located inside the casing, a power supply connected to the control circuit, and an electric heating element connected to the control circuit.

Further, it also includes a sensing element for detecting the internal temperature of the tobacco curing device. The sensing element is connected to the control circuit. When the sensing element detects that the internal temperature of the tobacco curing device is lower than the preset first preset threshold temperature value, , the control circuit starts the electric heating element for appropriate heat supplement; when the sensing element detects that the internal temperature of the tobacco baking device is higher than the second preset threshold temperature value, the control circuit will weaken or stop the electric heating Operation of the body, wherein the second preset threshold temperature value is higher than the first preset threshold temperature value.

Further, a communication hole is provided at the bottom of the tobacco containing cavity opposite to the opening, and the communication hole is connected to one end of the thermal conductive element and is in environmental communication with the other end of the thermal conductive element.

Further, a sealed layer of thermal insulation material is provided between the inner wall of the communication hole and the thermal conductive element.

Further, the housing is provided with openings, and the openings are used to provide necessary convection channels in the internal space of the housing.

Further, the electric heating element surrounds the carbon fuel.

Further, the usage ratio of the electric heating element to the carbon fuel is such that the electric heating element generates enough heat to heat the carbon fuel and start burning it within twenty seconds after being powered on.

Further, the appearance of the electric heating element is a hollow cylinder, the carbon fuel is placed in the space sandwiched by the inner wall of the electric heating element, and the axial length of the electric heating element is basically the same as the axial length of the carbon fuel. quite.

Further, the tobacco containing cavity and the heat conductive element are detachably connected.

The present invention provides dual heating mechanisms of fuel heating and electric heating by simultaneously arranging an electric heating element and carbon fuel in the heating cavity, and designing a thermal conductive element connecting the heating cavity and the tobacco containing cavity. , can be used for a long time, heats up quickly and has stable temperature control. It overcomes many shortcomings of the current tobacco baking device with a single heating mechanism and brings a better consumption experience to consumers.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of the dual-mechanism contact tobacco curing device of the present invention;

Figure 2 is a front view of the distal end of the dual-mechanism contact tobacco curing device of the present invention;

Figure 3 is a front view of the proximal end of the dual-mechanism contact tobacco curing device of the present invention;

Figure 4 is a side view of the dual-mechanism contact tobacco curing device of the present invention;

Figure 5 is a cross-sectional view along the line A-A in Figure 4 .

In the figure: 1—tobacco baking device, 101—casing, 102—thermal conductive element, 103—electric heating element, 104—carbon fuel, 105—tobacco containing cavity, 106—communication hole, 107—inner wall of heating cavity, 108—opening Hole, 109—heating cavity, 110—control circuit, 111—power supply, 112—sensing element.

Detailed ways

The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention.

Please refer to Figures 1-5. This embodiment provides a dual-mechanism contact tobacco curing device 1, including a housing 101 and other parts included in the housing 101:

1. Heating chamber 109. The heating cavity 109 is located at the distal end of the tobacco curing device 1. The heating cavity 109 has an electric heating element 103 and a carbon fuel 104;

2. Tobacco containing cavity 105. The tobacco containing cavity 105 is located at the proximal end of the tobacco curing device 1 and has an opening directly connected to the outside world. A part of the tobacco product can be inserted into the tobacco containing cavity 105 through the opening. The bottom of the tobacco containing cavity 105 opposite the opening is designed to have a communication hole 106, which can be connected to one end of the thermal conductive element 102 and in environmental communication with the other end of the thermal conductive element 102. A sealed layer of thermal insulation material is provided between the inner wall of the communication hole 106 and the thermal conductive element 102 . The connection between the tobacco containing cavity 105 and the heat conductive element 102 is made in a detachable manner, and the port portion of the heat conductive element 105 has a buckle or thread structure adapted to the communication hole 106 .

The inner wall of the tobacco containing cavity 105 has a groove body to help the tobacco product slide. Each radial cross-sectional area of the space sandwiched by the groove body gradually decreases along the embedding direction of the tobacco product.

3. Thermal conductive element 102. Both ends of the heat conductive element 102 are connected to the heating chamber 109 and the tobacco containing chamber 105 respectively. Specifically, the distal end of the thermal conductive element 102 basically penetrates the carbon fuel 104 so that the distal end of the thermal conductive element 102 is connected to the outside atmosphere. The thermal conductive element 102 extends in the heating cavity 109 to penetrate the carbon fuel. 104 in length, while providing part of the physical support for the carbon fuel 104; the proximal end of the thermal conductive element 102 penetrates the communication hole 106 at the bottom of the tobacco containing cavity 105, and protrudes into the tobacco containing cavity 105 to a certain length. The outer dimensions of the thermal conductive element 102 match the inner hole of the carbon fuel 104, and the thermal conductive element 102 is used to transfer the heat of the heating chamber 109 into the tobacco containing chamber 105. The thermal conductive element 102 can be designed as a solid round rod structure. The materials constituting the thermal conductive element 102 include, but are not limited to, metals and metal alloys such as aluminum and aluminum alloys, copper and copper alloys, iron and iron alloys, silver and silver alloys, silicon nitride, aluminum nitride, zirconium oxide, alumina, Ceramics such as aluminum carbide and silicon carbide.

4. Power supply 111 and control circuit 110. The power supply 111 and the control circuit 110 are located in the lower temperature area of the tobacco curing device 1. The power supply 111 is used to maintain the operation of the electrical components of the tobacco curing device 1, including but not limited to the electric heating element 103 and the control circuit. 110 and other sensing components not shown, etc. Correspondingly, the control circuit 110 is electrically connected to the electrical components of the tobacco curing device 1, and controls the normal realization of related functions of the tobacco curing device 1. These related functions include but are not limited to starting and stopping of the electric heating element 103. Mode adjustment, charging and discharging mode of the power supply 111, feedback and adjustment of the sensing element signal, etc.

The housing 101 of the tobacco curing device 1 is provided with openings 108 of appropriate size and number (as shown in FIG. 4 ). The openings 108 provide necessary convection channels for the internal space of the housing 101 .

An appropriate number of sensing elements 112 are arranged inside the heating cavity 109 for detecting the temperature and air flow conditions in key areas of the heating cavity 109 . The sensing element 112 is electrically connected to the control circuit 110. The signals collected by the sensing element 112 are transmitted to the control circuit 110 and then analyzed and processed to output control signals to other electronic components.

The carbon fuel 104 is basically in the shape of a hollow column, and the size of the inner hole of the hollow column matches the size of the thermal conductive element 102 . The carbon fuel 104 is a combustible consumable that can be quickly replaced after use. The materials for making the carbon fuel 104 include but are not limited to carbon powder, oxidant, graphite, cellulose, sodium carbonate, sodium bicarbonate, Water, silicone compounds, pectin, glucose, starch, sodium alginate, agar, etc. In particular, the carbon powder used in the carbon fuel 104 includes, in a broad sense, combustible powdery substances that are processed, ground and otherwise processed from various carbonaceous materials.

The electric heating element 103 is made of materials with high electrothermal efficiency, including but not limited to the following varieties: nickel-chromium alloy, iron-chromium-aluminum alloy, carbon fiber, tungsten alloy, etc. The electric heating element 103 surrounds the carbon fuel 104, and the carbon fuel 104 can use a carbon fuel holder to keep the carbon fuel 104 in a stable position when burning. The distance between the electric heating element 103 and the surface of the carbon fuel 104 is adjusted according to the heating efficiency of the electric heating element 103, and there is no unified regulation. The relative usage of the electric heating element 103 and the carbon fuel 104 can be expressed by the ratio of the orthogonal projection area of the electric heating element 103 on the surface of the carbon fuel 104 to the surface area of the carbon fuel 104, or it can be expressed by the The ratio of the mass of the electric heating element 103 to the mass of the carbon fuel 104 is expressed. Generally, the ratio of the electric heating element 103 to the carbon fuel 104 is such that the electric heating element 103 generates enough heat to heat the carbon fuel 104 and start burning it within twenty seconds after being powered on. .

The electric heating element 103 has a hollow cylindrical appearance, and the space sandwiched by the inner wall of the electric heating element 103 is suitable for placing a certain amount of the carbon fuel 104 . The axial length of the electric heating element 103 is basically equivalent to the axial length of the carbon fuel 104 and can be appropriately extended or shortened. The appropriately extended or shortened distance is no more than 2 cm. If the electric heating element 103 is too long or too short relative to the carbon fuel 104, it will be difficult to successfully realize the function of the tobacco curing device 1. The heating cavity inner wall 107 of the heating cavity 19 is not in direct contact with the carbon fuel 104 , and the space between the heating cavity inner wall 107 and the carbon fuel 104 is filled with an electric heating element 103 .

The tobacco baking device 1 of the present invention uses two heating mechanisms to provide a unified and complementary heating mode for tobacco products. The specific functions are described as follows: insert one end of the tobacco product into the tobacco containing cavity 105, and send the carbon fuel 104 into the heating chamber 109, and then start the operation switch of the tobacco curing device 1. At this time, the electric heating element 103 begins to generate heat rapidly. The heat emitted by the electric heating element 103 will be ignited by the carbon fuel 104 surrounding it and reach an almost whole-body combustion state. At the same time, the thermal conductive element 102 wrapped at one end by the carbon fuel 104 is burned. Heated to the working temperature, the consumer starts to smoke the proximal end of the tobacco product. The heat conductive element 102 is continuously heated and the heat is transferred into the tobacco containing cavity 105. The tobacco product in the tobacco containing cavity 105 is in contact with the tobacco product. The thermally conductive element 102 contacts and heats the tobacco material and releases tobacco flavor smoke. Under appropriate program settings, the electric heating element 103 gradually stops working, and the carbon fuel 104 continues to burn autonomously and continue to release heat until the combustion is completed. During this process, the sensing element 112 distributed inside the tobacco curing device 1 detects After a low temperature signal (for example, lower than the first preset threshold temperature value), the control circuit 110 will activate the electric heating element 103 for appropriate heat supplement; and after the sensing element 112 detects an excessively high temperature signal (for example, higher than the second preset threshold temperature value), where the second preset threshold temperature value is higher than the first preset threshold temperature value, the control circuit 110 will weaken or stop the operation of the electric heating element 103, and wait for After the carbon fuel 104 of the tobacco curing device 1 is used up, the residue of the carbon fuel 104 is removed from the heating chamber 109, and new carbon fuel 104 is filled in. After that, it can be restarted without charging or waiting time. The next round of use of the tobacco curing device 1 begins. Since the electric heating element 103 does not always supply power during use, but only temporarily supplements the heat shortage of the carbon fuel 104, the electric energy of the power supply 111 can be saved to a maximum extent and prevent the situation where the power supply reaches a certain level. In this case, the electric energy of the pure electric heating tobacco baking device decays too quickly and requires frequent charging.

It can be seen from the above invention that the contact tobacco baking device with dual mechanisms of fuel heating and electric heating is a new electronic accessory for tobacco products that can be used for a long time, has rapid temperature rise and stable temperature control, and overcomes the current problems of a single heating mechanism. The many shortcomings of tobacco curing equipment bring consumers a better consumption experience.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All are covered by the protection scope of the present invention.

Claims (8)

1. The utility model provides a contact tobacco baking device of two mechanisms, includes shell (101), locates the inside heating chamber (109) of shell (101), tobacco holds chamber (105), heating chamber (109) are located tobacco baking device's distal end, tobacco holds chamber (105) and is located tobacco baking device's proximal end, tobacco holds chamber (105) have the opening with external direct communication, its characterized in that: the tobacco heating device further comprises an electric heating body (103), carbon fuel (104) and a heat conducting element (102) which is arranged in the heating cavity (109) and is used for connecting the heating cavity (109) with the tobacco accommodating cavity (105), wherein the far-end of the heat conducting element (102) basically penetrates through the carbon fuel (104), the near-end of the heat conducting element (102) penetrates through the bottom of the tobacco accommodating cavity (105) and protrudes inwards by a certain length to contact tobacco products inserted into the tobacco accommodating cavity (105), the electric heating body (103) is used for heating the carbon fuel (104) and enabling the carbon fuel to burn rapidly, the electric heating body (103) surrounds the periphery of the carbon fuel (104), and the heat conducting element (102) is used for transferring heat of the heating cavity (109) into the tobacco accommodating cavity (105);

the electric heating element (103) is connected with the control circuit (110);

the tobacco baking device further comprises an induction element (112) for detecting the internal temperature of the tobacco baking device, the induction element (112) is connected with the control circuit (110), and when the induction element (112) detects that the internal temperature of the tobacco baking device is lower than a preset first preset threshold temperature value, the control circuit (110) starts the electric heating body (103) to perform proper heat supplement; when the sensing element (112) detects that the internal temperature of the tobacco baking device is higher than a second preset threshold temperature value, the control circuit (110) weakens or stops the operation of the electric heating body (103), wherein the second preset threshold temperature value is higher than the first preset threshold temperature value;

the operation switch of the tobacco baking device is started, the electric heating body (103) starts to rapidly heat, the carbon fuel (104) surrounded by the electric heating body (103) is ignited by the heat emitted by the electric heating body and reaches an almost whole-body combustion state, meanwhile, the heat conducting element (102) wrapped by the carbon fuel (104) at one end is heated to the working temperature, a consumer starts to suck the near-mouth end of the tobacco product, the heat conducting element (102) is continuously heated and transmits the heat into the tobacco accommodating cavity (105), and tobacco flavor smoke is released; under the setting of a proper program, the electric heating body (103) stops working step by step, and the carbon fuel (104) continues to burn autonomously and releases heat continuously until the combustion is completed; in the process, when sensing elements (112) distributed in the tobacco baking device detect that the internal temperature of the tobacco baking device is lower than a first preset threshold temperature value, the control circuit (110) starts the electric heating element (103) to perform proper heat supplement; after the carbon fuel (104) of the tobacco baking device is used, removing the residual carbon fuel (104) from the heating cavity (109), and supplementing and filling new carbon fuel (104), so that the next round of use of the tobacco baking device can be restarted without charging and waiting time.

2. The dual mechanism contact tobacco curing apparatus of claim 1, wherein: the device also comprises a power supply (111) which is arranged inside the shell (101) and is connected with the control circuit (110).

3. The dual mechanism contact tobacco curing apparatus of claim 1, wherein: the bottom of the tobacco accommodating cavity (105) opposite to the opening is provided with a communication hole (106), and the communication hole (106) is connected with one end of the heat conducting element (102) and is communicated with the environment of the other end of the heat conducting element (102).

4. A dual mechanism contact tobacco curing apparatus as claimed in claim 3, wherein: a closed heat insulation material layer is arranged between the inner wall of the communication hole (106) and the heat conduction element (102).

5. The dual mechanism contact tobacco curing apparatus of claim 1, wherein: an opening (108) is formed in the shell (101), and the opening (108) provides a necessary convection channel for the inner space of the shell (101).

6. The dual mechanism contact tobacco curing apparatus of claim 1, wherein: the ratio of the amount of the electric heating element (103) to the amount of the carbon fuel (104) is such that the electric heating element (103) generates heat within twenty seconds after the energization sufficient to heat the carbon fuel (104) and cause it to start burning.

7. The dual mechanism contact tobacco curing apparatus of claim 1, wherein: the appearance of the electric heating body (103) is hollow and cylindrical, the carbon fuel (104) is placed in a space clamped by the inner wall of the electric heating body (103), and the axial length of the electric heating body (103) is basically equivalent to that of the carbon fuel (104).

8. The dual mechanism contact tobacco curing apparatus of claim 1, wherein: the tobacco accommodating cavity (105) is detachably connected with the heat conducting element (102).