WO2016015196A1 - Electronic tobacco evaporator - Google Patents

Abstract

Provided is an electronic tobacco evaporator, comprising a shell, and an evaporation assembly and a battery assembly disposed inside the shell and used for heating a material to be evaporated so as to obtain a smoke. The evaporation assembly comprises an electric heating wire sleeve for heating the material to be evaporated. The electric heating wire sleeve is wound and surrounded by an electric heating wire. An evaporation cavity for containing the material to be evaporated is provided inside the electric heating wire sleeve. In the electronic tobacco evaporator, the electric heating wire is directly wound to form the electric heating wire sleeve which is used for containing the material to be evaporated and has the evaporation cavity, so as to directly heat the material to be evaporated placed inside, which improves the utilization of heat energy, reduces the requirement and load of thermal insulation materials and the manufacturing cost, and also increases the heating rate and improves user experience.

Description

 Electronic tobacco evaporator Technical field

The invention relates to the field of electric heating technology, in particular to an electronic tobacco evaporator.

Background technique

The electronic tobacco evaporator mainly uses the heat conduction method to bake the formed tobacco and the like to evaporate the harmful substances and extract the active ingredients for the user to suck. Compared with the existing cigarettes, the electronic flue-cured tobacco does not need to use an open flame, and compared with the existing ones. Cigarettes are less harmful to the health of the user.

Existing evaporators include a heat conducting sleeve for containing a cigarette, a shredded tobacco waiting for evaporation material, and a heating film disposed on the outer side wall of the thermally conductive sleeve. In use, the heating film electrically connected to the battery assembly is energized and heated, and the generated heat is conducted through the heat conducting sleeve, thereby heating the substance to be evaporated in the heat conducting sleeve to form a smoke for the user to smoke.

However, in the existing evaporator, the heat generated by the heating film needs to be conducted to the substance to be evaporated through the heat conducting sleeve, and the heat energy utilization of the existing evaporator is low due to the energy loss during the heat transfer of the heat conducting sleeve; The conduction heating method makes the heating rate of the substance to be evaporated slow, which reduces the user experience. At the same time, due to the energy loss, the heat generated by the heating film needs to be high, which increases the requirements and load on the heat insulating material and increases the manufacturing cost.

Summary of the invention

The technical problem to be solved by the present invention is to solve the above-mentioned drawbacks in the prior art, and to provide an electronic tobacco evaporator having high utilization rate of heat energy, low manufacturing cost, and faster heating speed.

 The technical solution adopted by the present invention to solve the technical problem thereof is: Provided is an electronic tobacco evaporator comprising an outer casing and an evaporation assembly and a battery assembly disposed in the outer casing for heating a substance to be evaporated to obtain smoke, the evaporation assembly including a heating wire for heating the substance to be evaporated a sleeve, the electric heating wire sleeve is enclosed by a heating wire, and the electric heating wire sleeve has an evaporation chamber for accommodating the substance to be evaporated.

 The evaporation assembly further includes a sleeve An isolation tube outside the heating wire sleeve, the heating wire sleeve is spirally wound in the isolation tube, so that the heating wire sleeve and the isolation tube together form the evaporation chamber.

 The electronic tobacco evaporator further includes an insulating cotton sleeved between the isolation tube and the outer casing.

 A temperature probe for monitoring the temperature of the electric heating sleeve is disposed between the isolation tube and the insulating cotton.

The electronic tobacco evaporator further includes a nozzle cover disposed on the outer casing adjacent to one end of the evaporation assembly, and the nozzle cover is provided with a smoking passage for the smoke to circulate.

 The evaporation assembly further includes the heating wire sleeve adjacent to the suction nozzle An isolating cover that abuts against the end of the cover, and a vent hole is opened along the axial direction of the spacer cover, and the vent hole communicates with the evaporation chamber and the smoking passage, respectively.

 The electronic tobacco evaporator further includes a filter screen disposed on the nozzle cover for filtering the formed smoke.

 The electric heating wire sleeve is a reduced diameter tubular structure formed by a spiral of electric heating wires. The electric heating wire sleeve has a larger inner diameter end facing the nozzle cover, and the electric heating wire sleeve has a smaller inner diameter end toward the battery assembly.

 The battery assembly includes a battery for powering the electric heating sleeve for controlling the electric heating wire a control circuit board that is turned on or off between the sleeve and the battery, and a button that is at least partially exposed outside the outer casing; the button is electrically connected to the control circuit board, and the electric heating wire sleeve has two Separately with the control circuit board The first lead end and the second lead end of the electrical connection.

 The evaporation assembly further includes a spacer for carrying the substance to be evaporated, the spacer is in abutment with an end of the heating wire sleeve adjacent to the battery assembly, and the first lead end and the second lead end respectively pass through The spacer and the The control board is electrically connected.

 The electronic tobacco evaporator further includes a heat insulating sheet disposed between the spacer and the battery assembly, the heat insulating sheet being axially correspondingly opened for the A heat insulating sheet through hole through which the first lead end and the second lead end pass.

 The battery assembly further includes a buffer block disposed at both ends of the battery.

 A paper for protecting and decorating the outer casing is provided outside the outer casing.

 The implementation of the electronic tobacco evaporator provided by the invention has the following beneficial effects:

 ( 1 The electric heating wire is directly wound to form a heating wire sleeve having an evaporation chamber for containing the substance to be evaporated, and the heat conducting sleeve of the prior art is eliminated. After being energized, the heating wire sleeve can directly heat the material to be evaporated placed therein, changing the current state of conduction heating in the prior art, avoiding the heat loss during conduction heating, greatly improving the utilization rate of heat energy and reducing the pair. The requirements and load on the insulation material reduce the manufacturing cost; at the same time, the direct heating also accelerates the heating rate of the substance to be evaporated, improving the user experience;

 (2) The heating wire sleeve is insulated from the outside through the isolation tube, the isolation seat and the isolation cover to avoid leakage;

 (3) Heat insulation sheets and Insulation cotton effectively prevents the heat generated by the heating wire sleeve from leaking out, which not only effectively prevents the user from being burned, but also improves the heat energy utilization rate and reduces the heat loss;

 ( 4 The setting of the button and the control circuit board enables the user to freely control the opening and closing of the heating wire sleeve as needed, thereby improving the user experience; at the same time, the temperature of the heating wire sleeve can be controlled by a temperature probe electrically connected to the control circuit board. Maintaining in the optimal temperature range, improving the heating effect of the substance to be evaporated and increasing the taste of smoking;

 (5 The setting of the filter net can effectively prevent the particulate smoke in the evaporation chamber from entering the smoking passage to be sucked by the user, thereby improving the mouthfeel of smoking and reducing the damage of harmful substances to the human body.

DRAWINGS

 The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of an electronic tobacco evaporator in an embodiment of the present invention.

 Figure 2 is a schematic view showing the disassembly of the electronic tobacco evaporator shown in Figure 1;

 Figure 3 is a perspective view of the heating wire of Figure 1;

 Figure 4 is a perspective view of the spacer in Figure 1;

 Figure 5 is a perspective view of the heat insulating sheet of Figure 1;

 Figure 6 is a perspective view of the temperature probe of Figure 1;

 Figure 7 is an enlarged view of a portion A in Figure 1;

 Figure 8 is a perspective view of a variation of the heating wire of Figure 1;

 Figure 9 is an enlarged view of a variation of the portion A in Figure 1;

 Figure 10 is a perspective view of the housing of Figure 1;

 Figure 11 is a perspective view of the electronic tobacco evaporator of Figure 1.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

 As shown in FIG. 1, the present invention provides an electronic tobacco evaporator comprising a casing 1 and a casing 1 An evaporation assembly and a battery assembly for heating the substance to be evaporated to obtain smoke, the evaporation assembly including a heating wire sleeve 201 for heating the substance to be evaporated, the heating wire sleeve 201 It is enclosed by a heating wire having an evaporation chamber 210 for containing a substance to be evaporated.

 The electronic tobacco evaporator further includes a nozzle cover 4 disposed on the outer casing 1 near an end of the evaporation assembly, and the nozzle cover 4 is inserted in the outer casing 1 The end and the interference fit with the outer casing 1. The nozzle cover 4 is provided with a smoking passage 401 for the circulation of smoke generated by the evaporation assembly, and the smoking passage 401 extends through the entire nozzle cover 4 The smoke is allowed to enter the mouth of the user. The nozzle cover 4 is provided at one end close to the evaporation assembly with a filter 5 for filtering the formed smoke to prevent the particulate smoke in the evaporation chamber 210 from entering the smoking passage. 401, improve the taste of smoking and reduce the damage of harmful substances to the human body. It can be understood that the filter 5 can also be disposed in the smoking passage 401 in the nozzle cover 4 The inside of the venting port of the evaporating component can be used as long as it can effectively filter the smoke. At the same time, the installation mode of the filter net 5 can be affixed and fixed, and the card is fixed and fixed, and is not specifically limited herein.

 As shown in FIG. 2, the battery assembly includes a battery 301 for powering the heating wire sleeve 201, and is disposed on the battery 301. A buffer block at both ends and an end cap 306 disposed at the bottom of the casing 1 for preventing the battery 301 and the buffer block from coming off the casing 1.

 In order to control the switch of the electronic tobacco evaporator, the electronic tobacco evaporator further comprises a heating wire sleeve 201 and a battery 301. a control circuit board 302 that is turned on or off, a button 303 that is at least partially exposed outside the casing 1, and a mounting frame 304 for mounting the control circuit board 302 and the button 303; The sleeve 201 is electrically connected to the battery 301 through the control circuit board 302.

 The buffer block is preferably made of an elastic material such as EVA. In the embodiment, the buffer block is disposed on the battery 301 and the control circuit board 302. The first buffer block 305 and the second buffer block 307 disposed between the battery 301 and the end cover 306 are used to prevent the battery 301 and the control circuit board from being effectively protected from being hit and vibrated. 302.

 The end cap 306 has an interference fit with the outer casing 1 and abuts against the second buffer block 307.

 The battery 301, the control circuit board 302 and the heating wire sleeve 201 of this embodiment constitute a current loop through the control circuit board The electrically connected button 303 and the control circuit board 202 are used to implement an on-off state between the battery 301 and the heating wire sleeve 201. The specific control circuit belongs to the prior art, and details are not described herein again. The user presses the button 303 to control the battery 301 to supply power to the heating wire sleeve 201 through the control circuit board 302. Electric heating wire casing 201 When energized, the heat on the heating wire sleeve 201 directly causes the temperature in the evaporation chamber 210 to rise rapidly, and the substance to be evaporated is heated.

 The evaporating assembly comprises a heating wire sleeve 201, an isolation tube 202 sleeved outside the heating wire sleeve 201, and a heating wire sleeve A spacer 203 adjacent to one end of the battery pack and a spacer cover 208 disposed on the heating wire sleeve 201 near one end of the nozzle cover 4 are provided.

 Electric heating wire sleeve 201 Preferably, it is wound by a heating wire. In the present invention, it is proposed to directly wind the heating wire to form a heating wire sleeve 201 having an evaporation chamber 210 for containing the substance to be evaporated. Replaces the thermal bushing of the prior art. After power-on, the heating wire sleeve 201 It can directly heat the material to be evaporated placed inside, avoiding the heat loss during conduction heating, greatly improving the utilization rate of heat energy and reducing the requirements and load on the heat insulating material, reducing the manufacturing cost; at the same time, the direct heating is also accelerated The heating rate of the evaporated material improves the user experience.

 Figure 3 In combination with Figure 7, the heating wire spirals around the axis of the electronic tobacco evaporator to form a tubular wire-like heating wire casing. 201. The heating wire sleeve 201 has two first terminals 206 and a second terminal 207 respectively electrically connected to the battery assembly, and the first terminal 206 and the second terminal 207 are 207. They are electrically connected to the control circuit board 302, respectively.

 The isolation tube 202 is sleeved outside the heating wire sleeve 201, and its shape and size are matched with the heating wire sleeve 201, and the isolation tube The inner wall surface of the 202 is in close contact with the outer wall surface of the heating wire sleeve 201 and has a length greater than that of the heating wire sleeve 201 to ensure complete accommodation of the heating wire sleeve 201. In this embodiment, the isolation tube 202 is The heating wire sleeve 201 is fitted with a tubular structure. The heating wire sleeve 201 is spirally wound in the isolation tube 202, so that the heating wire sleeve 201 and the isolation tube 202 together form an evaporation chamber 210. .

 The isolation cover 208 is inserted into the end of the isolation tube 202 and has an interference fit with the isolation tube 202, the isolation cover 208 and the heating wire sleeve The end of the nozzle cover 4 near 201 is abutted. The isolation cover 208 is provided with vent holes 209 communicating with the evaporation passages 401 and the smoking passages 401 in the nozzle cover 4, respectively. In the present embodiment, the end of the isolation cover 208 remote from the heating wire sleeve 201 is abutted against the filter screen 5.

 Figure 4 combined with Figure 7, the spacer 203 The two discs having different diameters are superposed, wherein the smaller diameter disc is inserted at the end of the heating wire sleeve 201, and the larger diameter disc is inserted and fixed at the end of the isolation tube 202, and An interference fit between the larger diameter disc and the isolation tube 202 secures the spacer 203. The spacer 203 is in opposition to the end of the heating wire sleeve 201 adjacent to the battery assembly.

 It can be understood that the mounting manner of the spacer 203 is not limited to the interference fit connection. It can also be a threaded connection, a snap connection, or the like. In this embodiment, the spacer 203 is provided with a communication groove 203a through which the first terminal 206 passes and a second terminal 207. The through via 203b, the first terminal 206 and the second terminal 207 are electrically connected to the control circuit board 302 through the spacer 203.

 The isolation tube 202, the spacer 203 for carrying the substance to be evaporated, and the isolation cover 208 form a semi-closed space to accommodate The heating wire sleeve 201 and the electric heating wire sleeve 201 are electrically isolated from the outside, preferably made of a high temperature resistant insulating material.

 In addition, the electronic tobacco evaporator further includes a heat insulating sheet 204 disposed between the spacer 203 and the battery assembly, and the sleeve is disposed on the isolation tube The outer insulation cotton 211 is used to prevent the heat generated by the heating wire casing 201 from scalding the user and affecting the stability of the operation of the battery assembly.

 Figure 5 In combination with Figures 4 and 7, the heat insulating sheet 204 is made of a heat insulating material, and the corresponding connecting groove 203a and The communication through hole 203b is provided with two heat insulating sheet through holes 205 for the first lead end 206 and the second lead end 207 to pass through, respectively.

 Insulation cotton 211 is located between the isolation tube 202 and the outer casing 1, preferably made of aluminosilicate fiber or zirconium fiber cotton. Insulation cotton 211 Fit the surface of the isolation tube 202 and the outer casing 1 respectively to ensure better insulation.

 As shown in Fig. 6, the evaporation assembly further includes a temperature probe 212 for monitoring the temperature of the heating wire sleeve 201 in real time, the temperature probe The two conductive terminals of 212 are electrically connected to the control circuit board 302, respectively, to transmit the acquired monitoring signals to the control circuit board 302.

 Preferably, the temperature probe 212 is disposed between the isolation tube 202 and the insulating cotton 211. Understandably, the temperature probe 212 The specific mounting position is not limited by this embodiment, and can be obtained at other positions near the heating wire sleeve 201, and only needs to be obtained in advance when the heating wire sleeve 201 is at the optimum temperature value, the temperature probe 212 is The temperature value at the specific installation position can be used, and the temperature value can be used as a control reference to realize real-time monitoring of the temperature of the heating wire casing 201, thereby ensuring that the heating wire casing 201 is maintained at an optimum temperature range.

 Figure 8 As shown in Figure 9, the heating wire sleeve 201 can also be spirally wound by a heating wire. The reduced diameter tubular structure is formed with the larger diameter end facing the isolation cover 208 and the nozzle cover 4, and the smaller diameter end facing the spacer 203 and the battery assembly. Electric heating wire sleeve 201 This conical reduced diameter tubular structure is more convenient for the user to add the substance to be evaporated into the evaporation chamber 210.

 It can be understood that the shape of the heating wire sleeve 201 is not limited to the tubular structure in the embodiment, and may be the same as the outer casing 1. Other conventional or irregular shapes which are compatible with the evaporation chamber for containing the substance to be evaporated are not specifically limited herein.

 As shown in Fig. 10, a through hole 101 for the bare button 303 is opened on the outer casing 1. Preferably, the outer casing 1 The outer surface is provided with a layer of stickers 6 (shown in enlarged view in Figures 7 and 9), and the shape and size of the sticker 6 matches the outer casing 1 for protecting the outer casing 1 It also plays a decorative role.

 Fig. 11 is a perspective view showing the electronic tobacco evaporator in the embodiment. The working principle of the electronic tobacco evaporator is as follows:

 The user presses the button 303 to control the battery 301 to the heating wire sleeve 201 through the control circuit board 302. When the heating wire sleeve 201 is energized, the heat on the heating wire sleeve 201 directly causes the temperature in the evaporation chamber 210 to rise rapidly to heat the substance to be evaporated; meanwhile, through the control circuit board 302 The electrically connected temperature probe 212 controls the temperature of the heating wire sleeve 201 to be maintained at an optimum temperature range to ensure the heating effect and increase the taste of the smoking; the smoke generated by the heat of the substance to be evaporated passes through the vent hole 209 in sequence. , filter 5 and smoking channel 401 enter the user's mouth.

 The implementation of the electronic tobacco evaporator provided by the present invention has the following beneficial effects:

 (1) directly winding the heating wire to form a heating wire sleeve 201 having an evaporation chamber 210 for containing a substance to be evaporated. The heat conducting sleeve of the prior art is eliminated. After power-on, the heating wire sleeve 201 It can directly heat the material to be evaporated placed therein, changing the current state of conduction heating in the prior art, avoiding the heat loss during conduction heating, greatly improving the utilization rate of heat energy and reducing the requirement for the heat insulating material and The load reduces the manufacturing cost; at the same time, the direct heating also accelerates the heating rate of the substance to be evaporated, improving the user experience;

 (2) The heating wire sleeve 201 passes through the isolation tube 202, the isolation seat 203, and the isolation cover 208. Insulated from the outside to avoid leakage.

 (3) The heat insulating sheet 204 and the insulating cotton 211 effectively prevent the heating wire sleeve 201 The leakage of heat generated can not only effectively prevent the user from being burnt, but also improve the utilization of heat energy and reduce heat loss.

 (4) The setting of the button 303 and the control circuit board 302 enables the user to freely control the heating wire sleeve 201 as needed. The opening and closing of the user experience improves the user experience; at the same time, the heating wire sleeve 201 can be controlled by the temperature probe 212 electrically connected to the control circuit board 302. The temperature is maintained in the optimal temperature range, which improves the heating effect of the substance to be evaporated and increases the taste of smoking.

 (5) The setting of the filter 5 can effectively prevent the particulate smoke in the evaporation chamber 210 from entering the smoking passage 401 It is sucked by the user, thereby improving the taste of smoking and reducing the damage of harmful substances to the human body.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Claims (13)

An electronic tobacco evaporator comprising a casing (1) and a casing (1) An evaporation assembly and a battery assembly for heating a substance to be evaporated to obtain smoke, wherein the evaporation assembly includes a heating wire sleeve (201) for heating the substance to be evaporated, the electric heating sleeve Tube (201 The electric heating wire ferrule (201) has an evaporation chamber (210) for accommodating the substance to be evaporated. The electronic tobacco evaporator according to claim 1, wherein the evaporation assembly further comprises a sleeve disposed on the electric heating wire (201) An outer isolation tube (202), the heating wire sleeve (201) is helically wound within the isolation tube (202), such that the heating wire sleeve (201) and the isolation tube (202) The synthesis chamber (210) is collectively synthesized. The electronic tobacco evaporator according to claim 2, further comprising a sheath (202) and said outer casing (1) ) between the insulation cotton (211). The electronic tobacco evaporator according to claim 3, wherein the insulation tube (202) and the heat insulating cotton (211) There is a temperature probe (212) for monitoring the temperature of the heating wire casing (201). The electronic tobacco evaporator according to claim 2, further comprising a nozzle cover disposed on the outer casing (1) adjacent to one end of the evaporation assembly (4) The nozzle cover (4) is provided with a smoking passage (401) for circulating the smoke. The electronic tobacco evaporator according to claim 5, wherein said evaporation assembly further comprises said heater adjacent to said heating wire sleeve (201) a partition cover (208) abutting against the end of the cover (4), and a vent hole (209) is opened along an axial direction of the partition cover (208), and the vent hole (209) is respectively associated with the evaporation chamber ( 210) is in communication with the smoking passage (401). The electronic tobacco evaporator according to claim 5, further comprising a filter (not) disposed on said nozzle cover (4) for filtering the formed smoke (5 ). The electronic tobacco evaporator according to claim 5, wherein said electric heating wire sleeve (201) is reduced in diameter by a spiral of electric heating wire. a tubular structure, the heating wire sleeve (201) having a larger inner diameter end facing the nozzle cover (4), the heating wire sleeve (201) An end having a smaller inner diameter faces the battery assembly. The electronic tobacco evaporator according to claim 1, wherein said battery assembly comprises a battery for powering said heating wire sleeve (201) (301) a control circuit board (302) for controlling conduction or disconnection between the heating wire sleeve (201) and the battery (301) and a button at least partially exposed outside the outer casing (1) ( 303); the button (303) is electrically connected to the control circuit board (302), and the heating wire sleeve (201) has two separate control boards (302) The first terminal (206) and the second terminal (207) are electrically connected. The electronic tobacco evaporator according to claim 9, wherein the evaporation assembly further comprises an isolation seat for carrying the substance to be evaporated (203) The spacer (203) abuts the end of the heating wire sleeve (201) adjacent to the battery assembly, the first terminal (206) and the second terminal (207) The control circuit board (302) is electrically connected through the isolation seat (203). The electronic tobacco evaporator according to claim 10, further comprising a heat insulating sheet disposed between said spacer (203) and said battery assembly ( 204) The heat insulating sheet (204) is axially correspondingly provided with a heat insulating sheet through hole for the first leading end (206) and the second leading end (207) to pass through (205) ). The electronic tobacco evaporator according to claim 9, wherein said battery assembly further comprises a buffer block disposed at both ends of said battery (301) . The electronic tobacco evaporator according to claim 1, characterized in that the outer casing (1) is provided with a paper for protecting and decorating the outer casing (1) (6) ).