Electromagnetic heating low-temperature smoking set

Abstract

The present invention belongs to the technical field of low-temperature cigarettes, and mainly relates to an electromagnetic heating low-temperature smoking device, comprising a lower shell and an upper shell, a heating component is installed in the lower shell, and the upper shell is covered on the heating component, the heating component comprises a built-in power supply, a control mainboard and a heating unit, the built-in power supply and the control mainboard are electrically connected to the heating unit, and the control mainboard is connected to a control switch, characterized in that: the heating unit is connected to a temperature measuring chip, the temperature measuring chip is connected to the control mainboard, a lower seat is installed in the lower shell, the heating unit is installed on the lower seat, the heating unit comprises a metal tube and a heating core, the heating core comprises an integrally formed heat-conducting tube and a heating needle, the metal tube is sleeved on the heat-conducting tube, an induction coil is arranged on the metal tube, a first through hole is opened on the upper part of the upper shell and the metal tube, which is used to solve the problem that the current low-temperature smoking device has a single heating method, and the composite heating equipment requires a larger space to configure the heating coil and the heat-conducting cavity, and its structure is complex and inconvenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of low-temperature cigarettes, and in particular relates to an electromagnetically heated low-temperature smoking device. Background Art

[0002] Traditional cigarettes need to be ignited and burned with an open flame to produce tobacco smoke. During the high temperature and cracking process, tobacco releases thousands of mixed substances that are harmful to the human body. These substances are composed of volatile substances in the gas and semi-volatile and non-volatile substances in the particles, such as carbon monoxide, phenols, aldehydes, nicotine (nicotine), tar, etc. Electronic cigarettes and low-temperature cigarettes can effectively reduce the production of harmful substances. The smoke of electronic cigarettes can simulate tobacco smoke and is healthier.

[0003] There are two main types of electronic cigarette devices on the market: those that vaporize tobacco liquid to create a smokable vapor, and those that distill tobacco materials to create a smokable vapor. To use a low-temperature cigarette, a cigarette is inserted into the device's heating tube or heating plate. A power source then turns on, heating the tube / heating plate, heating the cigarette and producing aerosol. The heating element is located inside the device. After smoking a cigarette, the remaining portion (the filter and any residue) is removed by grasping the exposed end of the cigarette.

[0004] At present, the heating methods of low-temperature smoking devices are mostly divided into electromagnetic induction heating of the smoke tube and then heating the cigarette, or electric heating of the heating rod to heat the inside of the cigarette. The heating form is relatively single and the user experience is poor. At the same time, the heating effect of the single heating method is poor. At present, some smoking devices are equipped with induction coils and heating rods inside the smoking devices to solve the problem of the single heating method affecting the experience, so as to achieve the purpose of composite heating. However, since the induction coil and the heating rod are independent of each other, the equipment needs to set up a larger space to configure the heating coil and the heat-conducting cavity. Its structure is complex and inconvenient to use. Summary of the Invention

[0005] Based on the problems mentioned in the above background technology, the present invention provides an electromagnetic heating low-temperature smoking device to solve the current single heating method of low-temperature smoking devices, and the composite heating equipment requires a large space to configure the heating coil and the heat-conducting cavity, which has a complex structure and is inconvenient to use.

[0006] The technical solution adopted in the present invention is as follows:

[0007] An electromagnetic heating low-temperature smoking device comprises a lower shell and an upper shell, wherein a heating component is installed in the lower shell, and the upper shell is covered on the heating component, wherein the heating component comprises a built-in power supply, a control mainboard and a heating unit, wherein the built-in power supply and the control mainboard are electrically connected to the heating unit, and the control mainboard is connected to a control switch, wherein the control mainboard comprises a driving circuit board and a microcontrol unit, and the heating unit is connected to a temperature measuring chip, and the temperature measuring chip is connected to the control mainboard, wherein a lower seat is installed in the lower shell, and the heating unit is mounted on the lower seat, wherein the heating unit comprises a metal tube and a heating core, the metal tube is in contact with the temperature measuring chip, and the temperature measuring chip sends the temperature of the metal tube to the control mainboard after obtaining the temperature of the metal tube, and the microcontrol unit of the control mainboard calculates a suitable control voltage to the driving circuit so that the driving circuit generates a sufficiently large alternating voltage to cause the heated metal tube to generate a sufficiently large eddy current, and the heating core comprises an integrally formed heat-conducting tube and a heating needle, wherein the metal tube is sleeved on the heat-conducting tube, an induction coil is provided on the metal tube, and the induction coil is electrically connected to the control mainboard, and a first through hole is opened between the upper shell and the upper part of the metal tube.

[0008] On the basis of the above technical solution, the present invention also makes the following improvements:

[0009] Furthermore, the lower seat is provided with a sleeve, within which is mounted a heat insulating seat, within which the heat conducting tube is mounted, and between which the metal tube is located. The outer wall of the heat insulating seat is sheathed with a vacuum heat insulating tube, and the lower shell is provided with a cover, which is located at the top of the lower seat and has a second through hole corresponding to the metal tube. The heat insulating seat reduces temperature transfer, while the vacuum heat insulating tube effectively blocks heat radiation, effectively preventing the temperature of the metal tube from transferring to the lower and upper shells and affecting user experience.

[0010] Furthermore, a thermal grease layer is coated between the metal tube and the heat-conducting tube, which enhances the heat transfer efficiency between the metal tube and the heat-conducting tube, and helps the heating needle to generate heat better to heat the inside of the cigarette.

[0011] Furthermore, a vibrator is mounted on the lower base, with its signal input connected to the signal output of the control mainboard, and its power input electrically connected to the power output of the built-in power supply. When the control switch is activated to power on the induction coil, the control mainboard briefly activates the vibrator, alerting the user through vibration that the low-temperature smoking device has been successfully powered on.

[0012] Furthermore, an inner frame is mounted within the upper housing, a slide is mounted on the top of the inner frame, a slider base is slidably mounted on the slide, a slide groove is defined in the upper housing, a slide cover is slidably mounted on the slider base, and a connecting post is integrally formed at the bottom of the slide cover. The connecting post is located within the slide groove and fixedly connected to the slider base. When not in use, the first through hole in the upper cover can be closed by moving the slide cover to prevent debris from falling into the metal tube.

[0013] Furthermore, the built-in power supply is a rechargeable battery, and a PCB charging board is installed in the lower shell. The PCB charging board is electrically connected to the input end of the built-in power supply. A USB interface is connected to the PCB charging board, and the USB interface is fixed on the lower shell.

[0014] Furthermore, the control switch includes a light-transmitting button, a switch base and a trigger button. The switch base is installed on the lower shell, and the trigger button is installed on the switch base. The trigger button is embedded with an indicator light, and the indicator light is connected in series with the induction coil. The light-transmitting button is installed on the lower shell, and the position of the light-transmitting button corresponds to that of the trigger button. When the trigger button is triggered to turn on the power to make the induction coil work, the indicator light works at the same time, so that the user can understand the working status of the smoking device through the indicator light.

[0015] Furthermore, the heat insulating seat is made of ceramic fiber, which has good heat resistance and heat resistance.

[0016] Beneficial effects of the present invention:

[0017] 1. This application combines the electromagnetic induction external heating method with the heating needle center heating method. After power is turned on, the driving circuit provides an alternating voltage to the induction coil. After the induction coil is connected to the alternating voltage, an alternating current is generated. This alternating current will generate an alternating magnetic field passing through the metal tube. The magnetic field causes the metal tube to generate eddy currents, and the heating performance is better.

[0018] 2. The metal tube of the present application is sleeved on the heat-conducting tube. When the metal tube is heated, the heating needle is heated by heat transfer. After absorbing the high heat, the heating needle bakes the tobacco inside the cigarette, making it easier for the cigarette to volatilize the tobacco aroma and the aroma is richer. At the same time, the metal tube and the heating needle do not need to be controlled independently, which simplifies the structure and helps to reduce production costs. At the same time, it helps to reduce the volume of the smoking device for easy use.

[0019] 3. After obtaining the temperature of the metal tube, the temperature measuring chip sends it to the microcontroller unit. The microcontroller unit will calculate the appropriate control voltage to the drive circuit so that the drive circuit generates a sufficiently large alternating voltage to make the metal tube generate a sufficiently large eddy current. It can measure the temperature of the heating unit more quickly and perform temperature feedback control, facilitating more accurate temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the expanded structure of some components of an electromagnetic heating low-temperature smoking device according to an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the longitudinal structure of an electromagnetic heating low-temperature smoking device according to an embodiment of the present invention;

[0023] The main component symbols are described as follows:

[0024] Lower shell 11, upper shell 12, built-in power supply 22, USB interface 23, control main board 24, vibrator 26, lower seat 311, cover 312, thermal insulation seat 32, thermal tube 331, metal tube 332, heating needle 333, induction coil 34, vibrator 4, control switch 5, switch seat 51, trigger button 52, light-transmitting button 53, slide plate 61, slider base 62, slide cover 63, cigarette 7, second through hole 8. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0026] Example

[0027] like Figures 1-2As shown, an electromagnetic heating low-temperature smoking device of the present invention includes a lower shell 11 and an upper shell 12, a heating component is installed in the lower shell 11, and the upper shell 12 is covered on the heating component, the heating component includes a built-in power supply 22, a control mainboard 24 and a heating unit, the built-in power supply 22 and the control mainboard 24 are electrically connected to the heating unit, the control mainboard 24 is connected to a control switch 5, wherein the control mainboard 24 includes a driving circuit board and a microcontroller unit, the heating unit is connected to a temperature measuring chip, the temperature measuring chip is connected to the control mainboard 24, the control switch 5 includes a light-transmitting button 53, a switch base 51 and a trigger button 52, the switch base 51 is installed on the lower shell 11, the trigger button 52 is installed on the switch base 51, an indicator light is embedded in the trigger button 52, the indicator light is connected in series with the induction coil 34, the light-transmitting button 53 is installed on the lower shell 11, and the light-transmitting button 53 corresponds to the trigger button 52. When the trigger button 52 triggers the power supply to turn on the induction coil 3 When the smoking device is in operation, the indicator lights work simultaneously, allowing the user to understand the working status of the smoking device through the indicator lights. A lower seat 311 is installed in the lower shell 11, and a heating unit is installed on the lower seat 311. The heating unit includes a metal tube 332 and a heating core. The metal tube 332 is in contact with a temperature measuring chip. After obtaining the temperature of the metal tube 332, the temperature measuring chip sends it to the control motherboard 24. The microcontroller unit of the control motherboard 24 calculates an appropriate control voltage and sends it to the drive circuit so that the drive circuit generates a sufficiently large alternating voltage to generate a sufficiently large eddy current in the heated metal tube 332. The heating core includes an integrally formed heat-conducting tube 331 and a heating needle 333. The metal tube 332 is sleeved on the heat-conducting tube 331. An induction coil 34 is provided on the metal tube 332 and is electrically connected to the control motherboard 24. The metal tube 332 is preferably a copper tube, which has low cost and high thermal conductivity. A first through hole is opened on the upper portion of the upper shell 12 and the metal tube 332.

[0028] Specifically, the lower seat 311 is provided with a sleeve, within which is mounted a thermal insulation seat 32. The thermal insulation seat 32 is preferably made of ceramic fiber, which provides excellent heat resistance and thermal insulation. A thermal conductive tube 331 is mounted within the thermal insulation seat 32, with a metal tube 332 positioned between the thermal insulation seat 32 and the thermal conductive tube 331. A vacuum insulation tube 35 is sheathed around the outer wall of the thermal insulation seat 32. A cover 312 is mounted within the lower housing 11, positioned at the top of the lower seat 311. A second through hole 8 is defined at the top of the cover 312, corresponding to the metal tube 332. The thermal insulation seat 32 reduces temperature transfer, while the vacuum insulation tube 35 effectively blocks heat radiation, effectively preventing the temperature of the metal tube 332 from transferring to the lower and upper housings 11 and 12, potentially affecting user experience.

[0029] Specifically, a thermal grease layer is applied between the metal tube 332 and the heat-conducting tube 331 , which enhances the heat transfer efficiency between the metal tube 332 and the heat-conducting tube 331 , and helps the heating needle 333 to generate heat better to heat the inside of the cigarette.

[0030] Specifically, a vibrator 4 is mounted on the lower base 311. The signal input of the vibrator 4 is connected to the signal output of the control mainboard 24, and the power input of the vibrator 4 is electrically connected to the power output of the built-in power supply 22. When the control switch 5 is triggered to turn on the power and activate the induction coil 34, the control mainboard 24 activates the vibrator 26 briefly, and the vibration reminds the user that the low-temperature smoking device has been successfully powered on.

[0031] Specifically, the upper housing 12 is mounted with an inner frame 36, a slide 61 mounted on the top of the inner frame 36, a slider base 62 slidably mounted on the slide 61, a slide slot is defined in the upper housing 12, a slide cover 63 slidably mounted on the slider base 61, and a connecting post is integrally formed at the bottom end of the slide cover 63. The connecting post is located in the slide slot and fixedly connected to the slider base 61. When not in use, the first through hole in the upper cover 12 can be closed by moving the slide cover 63 to prevent debris from falling into the metal tube 332.

[0032] Specifically, the built-in power supply 22 is a rechargeable battery. A PCB charging board is installed in the lower shell 11. The PCB charging board is electrically connected to the input end of the built-in power supply 22. A USB interface 23 is connected to the PCB charging board, and the USB interface 23 is fixed on the lower shell 11.

[0033] When it is needed, the sliding cover 63 is slid to expose the first through hole, and then the cigarette 7 is inserted into the metal tube 332 through the first through hole. At this time, the heating needle 333 is inserted into the inside of the cigarette 7, and then the transparent button 53 is pressed. The transparent button 53 contacts the trigger switch 52 to turn on the power to make the induction coil 333 work. The temperature of the metal tube 332 is obtained under the action of the temperature measuring chip and sent to the micro control unit. The micro control unit will calculate the appropriate control voltage to the drive circuit so that the drive circuit generates a sufficiently large alternating voltage to make the metal tube 332 generate a sufficiently large eddy current, which can measure faster. The temperature of the heating unit and the temperature feedback control process are carried out. The driving circuit board provides an alternating voltage to the induction coil 34. After the induction coil 34 is connected to the alternating voltage, an alternating current is generated. This alternating current will generate an alternating magnetic field passing through the metal tube. The magnetic field causes the metal tube to generate eddy current to heat the metal tube 332 to heat and bake the outer wall of the cigarette 7. The metal tube 332 is mounted on the heat-conducting tube 331. While the metal tube 332 is heated, the heat is transferred to the heating needle 333 through heat transfer. The heating needle 333 heats up after absorbing high heat and bakes the tobacco inside the cigarette 7.

[0034] The above describes in detail the electromagnetically heated low-temperature smoking device provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims.

Claims

1. An electromagnetic heating low-temperature smoking device, comprising a lower shell (11) and an upper shell (12), wherein a heating component is installed in the lower shell (11), and the upper shell (12) is covered on the heating component, wherein the heating component comprises a built-in power supply (22), a control mainboard (24) and a heating unit, wherein the built-in power supply (22) and the control mainboard (24) are electrically connected to the heating unit, and the control mainboard (24) is connected to a control switch (5), characterized in that: The heating unit is connected to a temperature measuring chip, which is connected to the control mainboard (24). A lower seat (311) is installed in the lower shell (11), and the heating unit is installed on the lower seat (311). The heating unit includes a metal tube (332) and a heating core. The heating core includes an integrally formed heat-conducting tube (331) and a heating needle (333). The metal tube (332) is sleeved on the heat-conducting tube (331). An induction coil (34) is provided on the metal tube (332). The induction coil (34) is electrically connected to the control mainboard (24). A first through hole is provided on the upper shell (12) and the upper part of the metal tube (332); The control mainboard includes a drive circuit board and a microcontroller unit. The drive circuit board provides an alternating voltage to the induction coil (34). When the induction coil (34) is connected to the alternating voltage, an alternating current is generated. The alternating current generates an alternating magnetic field passing through the metal tube (332). The alternating magnetic field causes the metal tube (332) to generate eddy currents, thereby heating the metal tube (332). A thermally conductive silicone grease layer is coated between the metal tube (332) and the thermally conductive cylinder (331); A sleeve is provided on the lower seat (311), and a heat insulation seat (32) is installed in the sleeve.

2. The electromagnetic heating low-temperature smoking device according to claim 1, characterized in that: The heat-conducting tube (331) is installed in the heat-insulating seat (32), the metal tube (332) is located between the heat-insulating seat (32) and the heat-conducting tube (331), the outer wall of the heat-insulating seat (32) is provided with a vacuum heat-insulating tube (35), a cover (312) is installed in the lower shell (11), the cover (312) is located at the top of the lower seat (311), and a second through hole (8) corresponding to the metal tube (332) is opened at the top of the cover (312).

3. The electromagnetic heating low-temperature smoking device according to claim 1, characterized in that: A vibrator (4) is mounted on the lower seat (311), a signal input end of the vibrator (4) is connected to a signal output end of the control mainboard (24), and a power input end of the vibrator (4) is electrically connected to a power output end of the built-in power supply (22).

4. The electromagnetic heating low-temperature smoking device according to claim 3, characterized in that: An inner frame (36) is installed in the upper shell (12), a slide plate (61) is installed on the top of the inner frame (36), a slider base (62) is slidably installed on the slide plate (61), a slide groove is provided on the upper shell (12), a slide cover (63) is slidably installed on the slider base (62), a connecting column is integrally formed at the bottom end of the slide cover (63), and the connecting column is located in the slide groove and fixedly connected to the slider base (62).

5. The electromagnetic heating low-temperature smoking device according to claim 4, characterized in that: The built-in power source (22) is a rechargeable battery. A PCB charging board is installed in the lower housing (11). The PCB charging board is electrically connected to the input end of the built-in power source (22). A USB interface (23) is connected to the PCB charging board. The USB interface (23) is fixed on the lower housing (11).

6. The electromagnetic heating low-temperature smoking device according to claim 5, characterized in that: The control switch (5) comprises a light-transmitting key (53), a switch base (51) and a trigger button (52), wherein the switch base (51) is mounted on the lower housing (11), and the trigger button (52) is mounted on the switch base (51). An indicator light is embedded in the trigger button (52), and the indicator light is connected in series with the induction coil (34). The light-transmitting key (53) is mounted on the lower housing (11), and the light-transmitting key (53) corresponds to the trigger button (52) in position.

7. The electromagnetic heating low-temperature smoking device according to claim 6, characterized in that: The material of the heat insulation seat (32) is ceramic fiber.

Images