Laser heating device for cigarettes and method for manufacturing the same

Abstract

A laser tobacco ignition device and a method for manufacturing the same, wherein the laser tobacco ignition device includes a case (10), a light-transmitting container (20) located inside the case (10), and a laser light emission unit provided between the case (10) and the light-transmitting container (20) and including a plurality of lasers (30) whose light emission directions face the light-transmitting container (20). Among them, an atomization-ready raw material and an endothermic material are provided inside the light-transmitting container (20). The laser (30) is configured to heat and atomize the atomization-ready raw material, and the endothermic material is configured to absorb heat to increase the degree of atomization of the atomization-ready raw material.

Description

Technical Field

[0001] This application claims the priority of a U.S. provisional application with a serial number of 63 / 472,782, filed on June 13, 2023, and the priority of a Chinese patent application with an application number of 202311052241.6, filed on August 18, 2023, with the entire contents of the above applications incorporated herein by reference.

[0002] The embodiments of this application relate to the technical field of lasers, for example Laser heating device for cigarettes and its manufacturing method.

Background Art

[0003] An e-cigarette is an electronic product that mimics a traditional cigarette, having a similar appearance, smoke, taste, and sensation. It is a product that converts nicotine and the like into vapor by means such as atomization and then allows users to inhale it.

[0004] The heating methods of e-cigarettes are mainly electrode heating and electromagnetic induction coil heating. Regarding the electrode heating method, usually, electrodes are plated on the surface of the ceramic, and the ceramic is processed into the shape of a "dagger" and inserted into raw materials waiting to be atomized, such as tobacco leaves or e-liquid. However, since the electrode heating method raises the temperature of raw materials waiting to be atomized, such as tobacco leaves or e-liquid, to 200 - 300°C, raw materials waiting to be atomized, such as tobacco leaves or e-liquid, will release multiple harmful substances to the human body. If the electromagnetic induction coil heating method is adopted, the heating temperature can avoid the release of multiple harmful substances by raw materials waiting to be atomized, such as tobacco leaves or e-liquid. However, whether it is ceramic or heavy metal materials such as metal electrodes plated on the surface of the ceramic and electromagnetic induction coils, during long-term use or the process of dry burning, they will release harmful substances and be inhaled into the body together with the atomized raw materials, damaging the smokers themselves and also being disadvantageous to environmental protection.

Summary of the Invention

[0005] The embodiments of this application reduce the amount of harmful substances released during the heating process of the device and improve the environmental protection of the device. Laser heating device for cigarettes The present invention provides a method for manufacturing the same.

[0006] This application is, The case and A light-transmitting container located inside the aforementioned case, The laser light emission unit is provided between the case and the light-transmitting container and comprises a plurality of lasers whose light emission direction is directed toward the light-transmitting container, The light-transmitting container contains a raw material awaiting atomization and a heat-absorbing material. The laser is configured to heat and atomize the raw material awaiting atomization, and the heat-absorbing material is configured to absorb heat to increase the degree of atomization of the raw material awaiting atomization. Laser heating device for cigarettes To provide.

[0007] Preferably, the heat-absorbing material has an absorption peak in the wavelength range of 650 to 1550 nm that exceeds a preset value, and includes at least one of graphite, ceramic, silicon carbide, metal, oxide, and nitride.

[0008] Preferably, at least a portion of the heat-absorbing material is in powder form, and the powdered heat-absorbing material is uniformly mixed with the raw material awaiting atomization. Among these, the powdered heat-absorbing material includes at least one of the following: silicon carbide powder, graphite powder, ceramic powder, metal powder, oxide powder, and nitride powder.

[0009] Preferably, at least a portion of the heat-absorbing material is porous structure To constitute, or to constitute a heat absorber, The heat-absorbing element is provided with at least one hollowed-out containment chamber configured to contain the raw material awaiting atomization, The heat-absorbing element has a columnar structure, a spherical structure, or a cubic structure. The shape of the hollowed-out housing chamber includes at least one of the following: circular, ring-shaped, elliptical, polygonal, and irregular shapes.

[0010] Preferably, at least a portion of the heat-absorbing material constitutes a heat-absorbing film that covers a portion of the inner surface of the light-transmitting container.

[0011] Preferably, the above Laser heating device for cigarettes The light-transmitting container further comprises an anti-reflective coating covering at least one location on the outer surface and inner surface.

[0012] Preferably, the above Laser heating device for cigarettes The device further comprises a thermally conductive insulating substrate fixed to the inner surface of the case by solder, and the plurality of lasers are provided on the surface of the thermally conductive insulating substrate furthest from the case and electrically connected to an electrode layer located on the surface of the thermally conductive insulating substrate.

[0013] Preferably, the material of the case includes a heat-dissipating metal. The material of the thermal conductive insulating substrate includes at least one of ceramic, aluminum nitride, copper diamond, beryllium oxide, and aluminum oxide. The material of the light-transmitting container includes at least one of glass, silicon carbide, ceramic, oxide, and nitride. The types of lasers in the laser light unit include at least one of the following: an end-face emitting laser, a vertical-cavity surface-emitting laser, a photonic crystal laser, and a horizontal-cavity surface-emitting laser.

[0014] Preferably, a photoelectric detector is provided on the surface facing each laser, and an optical structure is provided between the laser and the photoelectric detector, configured to guide a portion of the light from the laser to the photoelectric detector.

[0015] Preferably, the optical structure includes a light guide tube provided inside the case of the light-transmitting container.

[0016] This application is, To provide a metal heat sink piece, Multiple lasers are fixed to the surface of the metal heat sink piece, Provided is a light-transmitting container, and manufacturing the metal heat sink piece in a case surrounding the light-transmitting container, including: The plurality of lasers are provided between the case and the light-transmitting container, and the light-emitting direction is towards the light-transmitting container. The light-transmitting container is used to accommodate the raw material waiting to be atomized and the heat-absorbing material. The laser is used to heat and atomize the raw material waiting to be atomized, and the heat-absorbing material is used to absorb heat to increase the degree of atomization of the raw material waiting to be atomized. According to any embodiment of the present application Laser heating device for cigarettes For manufacturing Laser heating device for cigarettes A manufacturing method is provided.

[0017] It should be understood that the content described in this part is not intended to identify the core or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will be more easily understood from the following description.

Brief Description of Drawings

[0018] Hereinafter, the drawings necessary for the description of the embodiments will be briefly introduced.

[0019] [Figure 1] It is a structural schematic diagram of a laser heating device for tobacco according to an embodiment of the present application. [Figure 2] It is an exploded view of the structure shown in FIG. 1. [Figure 3] It is a schematic diagram of the bottom of the structure shown in FIG. 2. [Figure 4] It is a structural schematic diagram of a light-transmitting container according to an embodiment of the present application. [Figure 5] It is a structural schematic diagram of another light-transmitting container according to an embodiment of the present application. [Figure 6] It is a structural schematic diagram of a porous structure according to an embodiment of the present application. [Figure 7] It is a structural schematic diagram of a heat absorber according to an embodiment of the present application. [Figure 8] It is a structural schematic diagram of a heat-absorbing film on the inner surface of a light-transmitting container according to an embodiment of the present application. [Figure 9] This is a schematic diagram of the structure of another laser heating device for cigarettes according to an embodiment of the present invention. [Figure 10] Figure 9 is an exploded view of the structure shown. [Figure 11] This is a flowchart of the manufacturing method for a laser heating device for cigarettes according to an embodiment of the present invention. [Figure 12] This is a flowchart of a method for manufacturing another laser heating device for cigarettes according to an embodiment of the present invention. [Modes for carrying out the invention]

[0020] The technical proposal in the embodiment of this application will be described below in conjunction with the drawings of the embodiment.

[0021] The terms “First,” “Second,” etc., in the specification and claims of this application, as well as in the drawings, do not need to be used to describe a specific order or sequence, but are intended to distinguish similar subjects. The data used in this manner is replaceable where appropriate, so it should be understood that the embodiments of this application described herein can be carried out in an order other than that illustrated or described herein. Furthermore, the terms “includes” and “have,” and any variations thereof, are intended to cover non-exclusive inclusion, and may include, for example, other processes, methods, systems, products, or equipment of this series of steps or units that are not explicitly mentioned, or other steps or units specific to these processes, methods, systems, products, or equipment, in addition to the processes, methods, systems, products, or equipment of the series of steps or units shown in the embodiments of this application.

[0022] The embodiments of this application are Laser heating device for cigarettes Figure 1 shows an embodiment of the present application. Laser heating device for cigarettes Figure 1 is a schematic diagram of the structure, Figure 2 is an exploded view of the structure shown in Figure 1, and Figure 3 is a schematic diagram of the bottom of the structure shown in Figure 2. Refer to Figures 1 to 3. Laser heating device for cigarettesThe device comprises a case 10, a light-transmitting container 20 located inside the case 10, and a laser light emission unit provided between the case 10 and the light-transmitting container 20, which includes a plurality of lasers 30 whose light emission direction is directed toward the light-transmitting container 20. The light-transmitting container 20 contains a raw material awaiting atomization and a heat-absorbing material. The lasers 30 are configured to heat and atomize the raw material awaiting atomization, and the heat-absorbing material is configured to absorb heat and increase the degree of atomization of the raw material awaiting atomization.

[0023] Laser heating device for cigarettes The apparatus comprises a case 10, a light-transmitting container 20, and a laser light emission unit. The light-transmitting container 20 is configured to contain a raw material awaiting atomization. The raw material awaiting atomization may include solid tobacco or liquid tobacco, or other raw materials that have recreational or medical properties and can be heated and inhaled, but the embodiments of this application are not limited thereto. Since the light-transmitting container 20 is provided inside the case 10 and a plurality of lasers 30 are fixed to the inner surface of the case 10, several lasers 30 are provided on the four sides or bottom of the light-transmitting container 20, with their emission direction facing the light-transmitting container 20. Due to the dominance of coherent light from the laser beams, the heat from the laser beams is transferred to the raw material awaiting atomization, thereby heating and atomizing the raw material. The material of the light-transmitting container 20 includes one or more of the following: glass, silicon carbide, ceramic, oxide, and nitride, and must satisfy the need that the laser can penetrate it.

[0024] Case 10 may be columnar, spherical, or cubic in shape. The light-transmitting container 20 may be cylindrical, elongated, or similar to a frying pan. Figure 1 illustrates a cylindrical light-transmitting container 20, Figure 4 illustrates a frying pan-shaped light-transmitting container 20, and Figure 5 illustrates a elongated light-transmitting container 20. In a cross-section of case 10, the lasers 30 may be arranged along a single side, both sides, or multiple sides along the edges of the shape formed by case 10. Preferably, these lasers 30 may be uniformly arranged around the outer circumference of the light-transmitting container 20 so that the energy of the lasers 30 can be transmitted more uniformly into the raw material awaiting atomization.

[0025] The light-transmitting container 20 is further provided with an endothermic material that does not decompose even at temperatures above 200°C and is capable of effectively absorbing the heat of the laser light. This endothermic material has a high absorption peak between 650 and 1550 nm, such as graphite, silicon carbide, ceramics, metals, oxides, and nitrides. These endothermic materials are configured to absorb the heat from the laser light and transfer it to the raw materials awaiting atomization, such as tobacco liquid or shag, in order to facilitate the atomization of the raw materials.

[0026] The present invention relates to the embodiment of this application. Laser heating device for cigarettesThis system utilizes the coherent properties of laser light to transfer heat from the laser beam to the raw materials awaiting atomization, thereby heating and atomizing them. The temperature at which the laser heats the raw materials prevents the release of multiple substances harmful to the human body, and also reduces or avoids the release of harmful substances from materials such as ceramic and metal electrodes in the device. Furthermore, by positioning the laser outside the light-transmitting container as the heat source, direct contact between the laser and the raw materials awaiting atomization is prevented. This solves the problem of significant heat loss caused by the raw materials covering the electrodes or electronic coils, and reduces or avoids the inhalation of harmful substances released from materials such as ceramic and metal electrodes along with the atomized raw materials, thereby lowering the damage to the smoker and improving the environmental friendliness of the e-cigarette. Additionally, a heat-absorbing material is provided inside the light-transmitting container, which increases the degree of atomization of the raw materials awaiting atomization, improving the user experience.

[0027] In one embodiment of the present application, preferably, at least a portion of the heat-absorbing material is in powder form, and the powdered heat-absorbing material is uniformly mixed with the raw material awaiting atomization.

[0028] The light-transmitting container 20 is further provided with an endothermic material that is difficult to decompose and can absorb the heat of laser light well. The added endothermic material has an absorption peak in the wavelength range of 650 to 1550 nm that exceeds a preset value, and is a material having a high absorption peak between 650 and 1550 nm, such as silicon carbide powder, graphite powder, ceramic powder, metal powder, oxide powder, nitride powder, etc. The powdered endothermic material may be uniformly mixed with the raw materials to be atomized so that the heat can be uniformly transferred to the raw materials to be atomized, and the raw materials to be atomized are sufficiently heated and atomized.

[0029] In one embodiment of the present application, Figure 6 relates to the embodiment of the present application. porous structure This is a schematic diagram of the structure, see Figure 6, and at least some of the heat-absorbing material is porous structure 103 is composed of raw materials awaiting atomization porous structureIt is filled into the hole 103 104.

[0030] Figure 7 is a schematic diagram of the structure of a heat absorber according to an embodiment of the present application. Referring to Figure 7, preferably, at least a portion of the heat absorbent material constitutes the heat absorber 101, and the heat absorber 101 is provided with at least one hollowed-out containment chamber 100 configured to contain raw materials awaiting atomization. The heat absorber 101 has a columnar, spherical, or cubic structure, and the shape of the hollowed-out containment chamber 100 includes one or more of the following: circular, ring-shaped, elliptical, polygonal, and irregular shapes.

[0031] The heat-absorbing material added to the light-transmitting container 20 may be in the shape of a columnar, spherical, or cubic structure, and multiple shapes of hollowed-out storage chambers 100 may be formed by hollowing out the inside of the three-dimensional structure. This makes it convenient to fill and store the raw material awaiting atomization in the hollowed-out storage chambers 100, and allows the heat-absorbing material to absorb more heat and transfer it to the raw material awaiting atomization. Exemplarily, in Figure 7, the heat-absorbing body 101 has one annular groove and one circular groove, each groove being a hollowed-out storage chamber 100, and the raw material awaiting atomization is filled into the grooves of the heat-absorbing body 101. Multiple annular grooves may be formed on the heat-absorbing body 101. To increase the degree of atomization of the raw material awaiting atomization, the light-transmitting container 20 may be provided with both a heat-absorbing material in a three-dimensional structure and a heat-absorbing material in powder form.

[0032] In one embodiment of the present invention, Figure 8 is a schematic diagram of the structure of a heat-absorbing film on the inner surface of a light-transmitting container according to an embodiment of the present invention. Referring to Figure 8, at least a portion of the heat-absorbing material constitutes a heat-absorbing film 102 that covers a portion of the inner surface of the light-transmitting container 20. In other words, the atomization of raw materials awaiting atomization may be promoted by coating the inside of the light-transmitting container 20 with a material capable of effectively absorbing the heat of the laser light as described above. Since it is necessary to observe the state of the tobacco liquid, such coating may be applied only partially.

[0033] Laser heating device for cigarettes This consists of a powdered heat-absorbing material and a heat-absorbing material. porous structure103 may include a heat absorber 101 and a heat absorbent film 102, or one or any combination of these may be included.

[0034] In one embodiment of the present application, Laser heating device for cigarettes The container is further equipped with an anti-reflective coating 105, which, as shown in Figure 2, covers at least one location on the outer and inner surfaces of the light-transmitting container 20. It can be understood that a higher transmittance can be achieved by plating the surface of the light-transmitting container 20 with a film corresponding to the wavelength of the laser 30, so that the degree of atomization of the raw material awaiting atomization is higher.

[0035] In one embodiment of the present application, Figure 9 shows another embodiment relating to the present application. Laser heating device for cigarettes Figure 10 is a schematic diagram of the structure shown in Figure 9, and Figure 10 is an exploded view of the structure shown in Figure 9. Refer to Figures 9 and 10, and connect them with Figures 1 to 3. Laser heating device for cigarettes The device further comprises a thermal conductive insulating substrate 40 fixed to the inner surface of the case 10 by solder, and the laser 30 is provided on the surface of the thermal conductive insulating substrate 40 that is farther from the case 10 and is electrically connected to an electrode layer located on the surface of the thermal conductive insulating substrate 40, the electrode layer comprising a positive electrode and a negative electrode, the positive electrode and the negative electrode being drawn out from the case 10 by a flexible wiring board 50 and electrically connected to a drive unit, or being drawn out from the case 10 by an electrode rod 60 and electrically connected to a drive unit.

[0036] The bottom of the laser 30 is supported by a thermally conductive insulating substrate 40, and a metal layer of a specific pattern exists on the surface of the thermally conductive insulating substrate 40 that is electrically connected to the laser 30. Multiple lasers 30 can be attached to the surface of the metal layer with solder such as silver paste, indium, gold-tin, tin-silver-copper, or tin-bismuth, and each metal layer has a positive electrode and a negative electrode that are electrically connected to the positive and negative electrodes of the laser 30. The thermally conductive insulating substrate 40 may be a highly thermally conductive insulating substrate such as aluminum nitride, copper-diamond, beryllium oxide, or aluminum oxide, which facilitates heat dissipation from the laser 30 and can also reduce harmful substances emitted from the metal layer on the surface of the thermally conductive insulating substrate 40. The material of the case 10 may also be a heat-dissipating metal. The heat-dissipating metal of the case 10 may be a highly thermally conductive metal such as copper and / or aluminum, which further provides effective heat dissipation to the laser 30.

[0037] The positive and negative electrodes of the laser 30 may be drawn using metal electrode rods 60 (as shown in Figures 9 and 10), or they may be drawn using flexible tape on a flexible printed circuit board (FPCB) 50 (as shown in Figures 1 to 3). The metal electrode rods 60 or flexible printed circuit board 50 are inserted into the printed circuit board (PCB) using a method such as surface mount technology (SMT) to realize an electrical connection between the laser 30 and the drive circuit. The laser 30 can be driven by providing a circuit with a certain function on the PCB, and the driving conditions may be that the laser 30 is in continuous mode or quasi-continuous wave (QCW) mode, for example, turned on for 1 sec and off for 10 sec, with a pulse width of 10 ns to 1 sec, a duty cycle of 1% to 100%, and a peak power of 1 W to 500 W. When there are many lasers 30, different holes or pads can be provided in the PCB, and metal electrode rods 60 or FPCBs 50 for drawing out the electrodes of the lasers 30 can be uniformly welded to the surface of the PCB to achieve a uniform distribution of the lasers 30.

[0038] The type of laser 30 in the laser light emission unit includes one or more of the following: end-face emitting lasers, vertical-cavity surface-emitting lasers, photonic crystal lasers, and horizontal-cavity surface-emitting lasers. The wavelength range of the laser 30 is 650 to 1550 nm, and in order to achieve higher peak power, the number of junctions may be in the range of 1 to 10, and the number of lasers 30 may be in the range of 1 to 1000, which can be set according to the actual needs, and the embodiments of this application are not limited thereto.

[0039] In one embodiment of the present invention, a photoelectric detector is provided on the surface facing the laser 30, and the photoelectric detector is configured to detect the operating state of the laser light and prevent failure of the laser 30 from being detected in a timely manner. An optical structure is provided between the laser 30 and the photoelectric detector, and the optical structure is configured to guide a portion of the light from the laser 30 to the photoelectric detector so that the photoelectric detector can detect the operating state of the laser 30. The optical structure may be a light guide tube or other specific optical path design. The light guide tube or other specific optical path design may be provided inside the case of the light-transmitting container 20, thereby preventing it from affecting the space occupied and heat absorption of the raw material awaiting atomization when the light guide tube or other specific optical path design is provided inside the hollowed-out storage chamber 100 of the light-transmitting container 20 together with the raw material awaiting atomization.

[0040] The embodiments of this application are described in any of the embodiments described above. Laser heating device for cigarettes For manufacturing Laser heating device for cigarettes The present invention further provides a method for manufacturing the present invention, and Figure 11 shows an embodiment relating to the present invention. Laser heating device for cigarettes This is a flowchart of the manufacturing method; refer to Figure 11. Laser heating device for cigarettes The manufacturing method includes the following:

[0041] In S110, a metal heat sink piece is provided.

[0042] In S120, multiple lasers are fixed to the surface of a metal heat sink piece.

[0043] In S130, a light-transmitting container is provided, and a metal heat sink piece is manufactured in a case surrounding the light-transmitting container. Multiple lasers are provided between the case and the light-transmitting container, with the laser emission direction facing the light-transmitting container. The light-transmitting container is used to house raw materials awaiting atomization and a heat-absorbing material. The lasers are used to heat and atomize the raw materials awaiting atomization, and the heat-absorbing material is used to increase the degree of atomization of the raw materials awaiting atomization.

[0044] The metal heat sink piece has a planar structure and may have a corner shape, so that the case surrounding the light-transmitting container made of the metal heat sink piece may be columnar, spherical, or cubic. The light-transmitting container may be cylindrical, elongated, or similar to a frying pan. The light-transmitting container contains raw materials awaiting atomization. The raw materials awaiting atomization may include solid tobacco leaves or liquid tobacco liquid, or other raw materials that have recreational or medical properties and can be heated and inhaled, but the embodiments of this application are not limited thereto. Since multiple lasers are fixed to the inner surface of the case, several lasers are provided on the four sides or bottom of the light-transmitting container, with the direction of light emission directed toward the light-transmitting container. Due to the dominance of coherent light from the laser beams, the heat from the laser beams is transferred to the raw materials awaiting atomization, thereby heating and atomizing the raw materials awaiting atomization. The material of the light-transmitting container includes one or more of the following: glass, silicon carbide, ceramic, oxide, and nitride, and must satisfy the need for laser light to pass through. In the cross-section of the case, along the edges of the figure formed by the case, the lasers may be arranged along one side, both sides, or multiple sides. Preferably, several lasers are provided on all four sides or the bottom of the light-transmitting container, and these lasers may be uniformly arranged on the outer periphery of the light-transmitting container so that the laser energy can be more uniformly transferred into the raw materials awaiting atomization. The light-transmitting container is further provided with an endothermic material that does not decompose even at temperatures above 200°C and can absorb the heat of the laser light well, such as graphite, ceramic, metal, oxide, or nitride, which has a high absorption peak between 650 and 1550 nm. These endothermic materials are used to absorb the heat from the laser light and transfer it to the tobacco liquid or shag so that the raw materials awaiting atomization is more easily atomized.

[0045] The present invention relates to the embodiment of this application. Laser heating device for cigarettesThe manufacturing method involves placing a laser around a light-transmitting container containing the raw materials awaiting atomization. By utilizing the dominance of coherent light from the laser, the heat from the laser is transferred to the raw materials, thereby heating and atomizing them. The temperature heated by the laser light avoids the release of multiple substances harmful to the human body from the raw materials. Furthermore, by placing the laser as a heating source outside the light-transmitting container, direct contact between the laser and the raw materials is prevented, solving the problem of significant heat loss caused by the raw materials covering electrodes or electronic coils. Also, by placing the laser as a heating source outside the light-transmitting container, the release of harmful substances from materials such as ceramics and metal electrodes is reduced or avoided, lowering the damage to the smoker and improving the environmental friendliness of the e-cigarette. In addition, a heat-absorbing material is provided inside the light-transmitting container, which increases the degree of atomization of the raw materials and improves the user experience.

[0046] Figure 12 shows another embodiment relating to the present invention. Laser heating device for cigarettes This is a flowchart of the manufacturing method; refer to Figure 12. Laser heating device for cigarettes The manufacturing method includes the following:

[0047] In S210, a metal heat sink piece is provided.

[0048] In S220, a thermal conductive insulating substrate is bonded to a metal heat sink piece, and the thermal conductive insulating substrate and the metal heat sink piece are connected by solder. The solder may contain silver paste, indium, tin-silver-copper, tin-bismuth, or gold-tin.

[0049] In S230, multiple lasers are attached to a metal layer on the surface of a thermally conductive insulating substrate using solder, and each metal layer is equipped with a positive electrode and a negative electrode that are electrically connected to the positive and negative electrodes of the lasers, respectively.

[0050] In S240, the positive and negative electrodes are either drawn out of the case using a flexible wiring board and electrically connected to the drive unit, or the positive and negative electrodes are drawn out of the case using electrode rods and electrically connected to the drive unit.

Claims

1. The case and A light-transmitting container located inside the aforementioned case, The laser light emission unit is provided between the case and the light-transmitting container and comprises a plurality of lasers whose light emission direction is directed toward the light-transmitting container, The light-transmitting container contains a raw material awaiting atomization and a heat-absorbing material. The laser is configured to heat and atomize the raw material awaiting atomization, and the heat-absorbing material is configured to absorb heat to increase the degree of atomization of the raw material awaiting atomization. The device further comprises a thermal conductive insulating substrate fixed to the inner surface of the case by solder, wherein the plurality of lasers are provided on the surface of the thermal conductive insulating substrate furthest from the case and are electrically connected to an electrode layer located on the surface of the thermal conductive insulating substrate. The electrode layer comprises a positive electrode and a negative electrode, which are configured to be drawn out of the case by a flexible wiring board and electrically connected to the drive unit, or to be drawn out of the case by an electrode rod and electrically connected to the drive unit. A laser heating device for cigarettes.

2. The heat-absorbing material has an absorption peak in the wavelength range of 650 to 1550 nm that exceeds a preset value, and includes at least one of graphite, silicon carbide, ceramic, metal, oxide, and nitride. The laser heating device for cigarettes according to claim 1.

3. At least some heat-absorbing materials are in powder form, A powdered heat-absorbing material containing at least one of silicon carbide powder, graphite powder, ceramic powder, metal powder, oxide powder, or nitride powder is uniformly mixed with the raw materials awaiting atomization. The laser heating device for cigarettes according to claim 2.

4. At least some heat-absorbing materials, To form a porous structure, Or, The heat absorber is configured to contain the raw material awaiting atomization, and comprises at least one hollowed-out containment chamber whose shape includes at least one of circular, elliptical, polygonal, ring-shaped, and irregular shapes, and has a columnar, spherical, or cubic structure. The laser heating device for cigarettes according to claim 2.

5. At least a portion of the heat-absorbing material constitutes a heat-absorbing film that covers a portion of the inner surface of the light-transmitting container. The laser heating device for cigarettes according to claim 2.

6. The light-transmitting container further comprises an anti-reflective coating covering at least one location on the outer surface and inner surface. The laser heating device for cigarettes according to claim 1.

7. The material of the aforementioned case includes a heat-dissipating metal. The laser heating device for cigarettes according to claim 1.

8. The material of the thermal conductive insulating substrate includes at least one of aluminum nitride, copper diamond, beryllium oxide, and aluminum oxide. The laser heating device for cigarettes according to claim 1.

9. The material of the light-transmitting container includes at least one of glass, silicon carbide, ceramic, oxide, and nitride. The laser heating device for cigarettes according to claim 1.

10. The types of lasers in the laser light emission unit include at least one of the following: an end-face emitting laser, a vertical-cavity surface-emitting laser, a photonic crystal laser, and a horizontal-cavity surface-emitting laser. The laser heating device for cigarettes according to claim 1.

11. A photoelectric detector is provided on the surface facing each laser, and an optical structure is provided between the laser and the photoelectric detector, configured to guide a portion of the light from the laser to the photoelectric detector. The laser heating device for cigarettes according to claim 1.

12. The optical structure comprises a light guide tube provided inside the case of the light-transmitting container. The laser heating device for cigarettes according to claim 11.

13. A method for manufacturing a laser heating device for cigarettes according to any one of claims 1 to 12, To provide a metal heat sink piece, Multiple lasers are fixed to the surface of the metal heat sink piece, This includes providing a light-transmitting container and manufacturing the metal heat sink piece into a case surrounding the light-transmitting container, The plurality of lasers are provided between the case and the light-transmitting container, with their light emission direction directed toward the light-transmitting container, the light-transmitting container is used to contain a raw material awaiting atomization and a heat-absorbing material, the lasers are used to heat and atomize the raw material awaiting atomization, and the heat-absorbing material is used to absorb heat and increase the degree of atomization of the raw material awaiting atomization. A method for manufacturing a laser heating device for cigarettes.

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