Heating components, atomizers and electronic cigarettes

Abstract

The present invention discloses a heating component, which includes M heating wires and a liquid absorbing element, wherein the M heating wires include at least one first heating wire and at least one second heating wire, the first heating wire includes a heating portion and two power supply pins, the second heating wire includes a heating portion, both ends of the heating portions of all the second heating wires are welded to the two power supply pins of the corresponding first heating wires, one of the power supply pins of all the first heating wires is electrically connected to a positive electrode, and the other power supply pins of all the first heating wires are electrically connected to a negative electrode, and the output voltage output to the heating component is U, the value of the output voltage U is less than 3.7V, and M is a positive integer. The present invention also discloses an atomizer and an electronic cigarette.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to a heating component, an atomizer and an electronic cigarette. Background Art

[0002] Electronic cigarettes are electronic products that imitate cigarettes. They can generate smoke by atomizing the smoke liquid. The smoke can be inhaled into the body by the user of the electronic cigarette from the mouthpiece, thereby simulating smoking.

[0003] However, the resistance of the heating element of the electronic cigarette in the prior art is about 1 ohm. In order to obtain a suitable amount of smoke, the output voltage of the electronic cigarette needs to be set above 3.7 volts, so that the output power of the electronic cigarette reaches 15 watts. In this way, for an electronic cigarette with a certain amount of power, when outputting with the above output parameters, the power consumption is too large, the number of puffs is too small, and the power will be completely consumed soon. The user needs to charge the electronic cigarette before continuing to puff, which is inconvenient to use. Summary of the invention

[0004] In order to solve the problem of excessive power consumption of electronic cigarettes in the prior art, an embodiment of the present invention provides a heating component, an atomizer and an electronic cigarette. The technical solution is as follows:

[0005] In a first aspect, a heating component is provided, the heating component comprising M spiral columnar heating wires and a liquid absorbing element, the heating component further comprising at least two power supply pins, each of the heating wires comprising a heating portion, an output voltage output to the heating component being U, and an output power output to the heating component being P;

[0006] The value of the output voltage U is less than 3.7V, and the output power P is less than a preset power. The preset power is a value determined according to the output voltage U and the minimum limit value of the resistance of the heating component under the output voltage U, and M is a positive integer.

[0007] Optionally, the effective contact area A between the heating wire and the liquid absorbing element satisfies:

[0008]

[0009] Wherein, k is the thermal conductivity of the smoke liquid, ΔT is the temperature difference before and after the smoke liquid is heated, and t is the heating time of the heating component.

[0010] Optionally, the length l of the heating portion of the heating wire, the wire diameter d of the heating portion of the heating wire and the number M of the heating wires satisfy:

[0011]

[0012] Where a is the effective area coefficient and is a constant.

[0013] Optionally, M is an integer greater than or equal to 2 and M heating wires are connected in parallel, and the wire diameter d of the heating portion of the heating wire and the number M of the heating wires satisfy:

[0014]

[0015] Among them, a is the effective area coefficient and is a constant, ρ is the resistivity of the heating part of the heating wire, and R is the resistance value of the heating component.

[0016] Optionally, the number M of the heating wires and the wire diameter d of the heating portion of the heating wires satisfy the following conditions:

[0017] 0.004≤M 2 ·d 3 ≤0.02.

[0018] Optionally, the heating wire is made of iron chromium.

[0019] Optionally, the heating wires are all first heating wires, each of the first heating wires includes a heating part and two power supply pins, one power supply pin of all the first heating wires is electrically connected to a positive contact, and the other power supply pin of all the first heating wires is electrically connected to a negative contact.

[0020] Optionally, the heating parts of all the first heating wires are coaxially arranged, and the power supply pins of all the first heating wires used for electrically connecting to the positive electrode are located on the same side of the heating component, and the power supply pins of all the first heating wires used for electrically connecting to the negative electrode are also located on the same side of the heating component.

[0021] Optionally, each of the heating parts includes at least one heating coil, the number of the heating coils of all the first heating wires is the same, and the diameters of the heating coils of all the first heating wires are the same.

[0022] Optionally, one of the heating wires is the first heating wire, and the rest are second heating wires, the first heating wire includes one heating part and two power supply pins, the two power supply pins each include a connecting end, and the connecting end is used to connect to the heating part of the first heating wire, each of the second heating wires includes only one heating part, one end of the heating part of all the second heating wires is welded to the connecting end of one of the power supply pins, and the other end of the heating part of all the second heating wires is welded to the connecting end of another power supply pin.

[0023] Optionally, the heating portion of the first heating wire and the heating portions of all the second heating wires are coaxially arranged.

[0024] Optionally, each of the heating parts includes at least one heating coil, the number of heating coils of the heating part of the first heating wire and the number of heating coils of the heating parts of all the second heating wires are the same, and the diameters of all the heating coils are the same.

[0025] Optionally, the heating wire includes at least two first heating wires and at least one second heating wire, all of the second heating wires are welded to the corresponding first heating wires, each of the first heating wires includes a heating part and two power supply pins, one of the power supply pins of all the first heating wires is electrically connected to a positive contact, and the other of the power supply pins of all the first heating wires is electrically connected to a negative contact.

[0026] In a second aspect, an atomizer is provided, wherein the atomizer comprises the heating component described in the first aspect of the present invention.

[0027] Optionally, the atomizer further includes a smoke outlet channel and a liquid storage chamber for storing smoke liquid, the liquid absorption element is used to absorb the smoke liquid in the liquid storage chamber, the heating wire is used to heat the smoke liquid absorbed by the liquid absorption element under electrical drive to form smoke, and the smoke flows out through the smoke outlet channel.

[0028] Optionally, the atomizer further comprises an atomizing sleeve, the heating component is mounted on the atomizing sleeve, and the smoke outlet channel is communicated with an inner cavity of the atomizing sleeve.

[0029] Optionally, through grooves are provided on opposite sides of the atomizer sleeve, and two ends of the liquid absorption element respectively pass through the corresponding through grooves and extend into the liquid storage cavity, and the heating wire is wound around the portion of the liquid absorption element located in the inner cavity of the atomizer sleeve.

[0030] Optionally, the liquid absorption element is arranged inside the atomizing sleeve along the axial direction of the atomizing sleeve, the outer surface of the liquid absorption element is in contact with the inner surface of the atomizing sleeve, the heating wire is arranged in the inner cavity of the liquid absorption element, and the atomizing sleeve is provided with a liquid inlet hole connecting the liquid storage cavity and the liquid absorption element.

[0031] In a third aspect, an electronic cigarette is provided, comprising the atomizer according to the second aspect of the present invention, wherein an output voltage U of the electronic cigarette to the heating component is less than 3.7 V, and an output power P of the electronic cigarette to the heating component is less than a preset power, wherein the preset power is a value determined according to the output voltage U of the electronic cigarette to the heating component and the minimum limit value of the resistance of the heating component under the output voltage U.

[0032] Optionally, the voltage range of the output voltage of the electronic cigarette is [1V-3.7V), and the power range of the output power of the electronic cigarette is [5W-10W).

[0033] Optionally, the electronic cigarette further comprises a battery, and the battery is a rechargeable battery or a non-rechargeable battery.

[0034] Optionally, when the battery is a rechargeable battery, the rechargeable battery is at least one of a lithium battery, a lead-acid battery, a nickel-metal hydride battery, an iron-nickel battery, a metal oxide battery, a zinc-silver battery, a zinc-nickel battery, and a solar cell.

[0035] Optionally, when the battery is a non-rechargeable battery, the non-rechargeable battery is at least one of an alkaline dry battery and a hydrogen-oxygen fuel cell.

[0036] In a fourth aspect, a heating component is provided, comprising M heating wires and a liquid absorption element, the M heating wires comprising at least one first heating wire and at least one second heating wire, the first heating wire comprising a heating portion and two power supply pins, the second heating wire comprising a heating portion, both ends of the heating portions of all the second heating wires are welded to the two power supply pins of the corresponding first heating wires, one of the power supply pins of all the first heating wires is electrically connected to a positive contact, and the other of the power supply pins of all the first heating wires is electrically connected to a negative contact, the output voltage output to the heating component is U, the value of the output voltage U is less than 3.7V, and M is a positive integer.

[0037] Optionally, the heating parts of all the first heating wires and the heating parts of all the second heating wires are coaxially arranged, and all the power supply pins electrically connected to the positive electrode are located on the same side of the heating component, and all the power supply pins electrically connected to the negative electrode are located on the same side of the heating component.

[0038] Optionally, both the first heating wire and the second heating wire are spiral columnar heating wires, and the heating portion of the first heating wire and the heating portion of the second heating wire both include at least one heating coil.

[0039] Optionally, the number of the heating coils of all the first heating wires is the same, and the diameters of the heating coils of all the first heating wires are the same.

[0040] Optionally, the heating coils of the second heating wire welded to the same first heating wire have the same number and the same diameter.

[0041] Optionally, no second heating wires are welded to at least one of the first heating wires, or at least one second heating wire is welded to each of the first heating wires.

[0042] Optionally, the wire diameter of the heating portion of the first heating wire and the wire diameter of the heating portion of the second heating wire are both d, and d and M satisfy the following conditions:

[0043] 0.004≤M 2 ·d 3 ≤0.02.

[0044] In a fifth aspect, an atomizer is provided, wherein the electronic cigarette comprises the heating component as described in the fourth aspect of the present invention and a positive electrode contact and a negative electrode contact.

[0045] Optionally, the atomizer further includes a smoke outlet channel and a liquid storage chamber for storing smoke liquid, the liquid absorption element is used to absorb the smoke liquid in the liquid storage chamber, the heating wire is used to heat the smoke liquid absorbed by the liquid absorption element under electrical drive to form smoke, and the smoke flows out through the smoke outlet channel.

[0046] In a sixth aspect, an electronic cigarette is provided, the electronic cigarette comprising the atomizer according to the fifth aspect of the present invention, the electronic cigarette further comprising a power supply device, when the atomizer is electrically connected to the power supply device, the power supply device can output an output voltage U to the heating component.

[0047] In summary, the heating component of the present invention can also emit the electric power expected by the user and meet the requirements at a voltage less than 3.7V (that is, at low voltage), thereby generating sufficient heat to atomize the smoke liquid; it solves the problem in the prior art that the output voltage of the electronic cigarette is greater than or equal to 3.7V and the resistance value is too high, resulting in excessive power consumption of the electronic cigarette, and achieves the technical effect of achieving a sufficient amount of smoke under low voltage and low power consumption, meeting the user's smoking needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 It is a schematic diagram of the structure of a heating wire provided in one embodiment of the present invention.

[0050] Figure 2 It is a schematic diagram of an exploded view of a heating component provided in one embodiment of the present invention (liquid-conducting element omitted).

[0051] Figure 3 It is a schematic diagram of the structure of another heating wire provided in one embodiment of the present invention.

[0052] Figure 4 It is a schematic structural diagram of another heating component provided in one embodiment of the present invention (liquid-conducting element is omitted).

[0053] Figure 5 It is a schematic structural diagram of an atomizer provided in one embodiment of the present invention.

[0054] Figure 6 It is a schematic structural diagram of another atomizer provided in one embodiment of the present invention (the upper cover assembly, shell, and ventilation pipe are omitted).

[0055] Heating part: 11 Heating circle: 111 Power supply pins: 12 Connection terminal: 121 Upper cover assembly: 20 Mouthpiece: 21 Upper cover: 22 Through holes: 221 Housing: 30 Liquid storage chamber: 31 Snorkel: 40 Smoke outlet channel: 41 Base assembly: 50 Air Intake Holes: 51 Positive contact: 52 Negative contact: 53 - Base: 54 Insulation: 55 Atomizer set: 60 Through slots: 61 Liquid inlet hole: 62 Support seat: 70 Seals: 80 DETAILED DESCRIPTION

[0056] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0057] The first embodiment of the present invention provides a heating component, which includes M heating wires and a liquid absorbing element, where M is a positive integer. After the heating component is powered on, the heating wires in the heating component can atomize the smoke liquid absorbed by the liquid absorbing element into smoke. The heating wires in the heating component can be connected in series, in parallel, or in series and parallel. The liquid absorbing element can be wrapped around the outside of the heating wire, or the heating wire can be wrapped around the outside of the liquid absorbing element.

[0058] In a possible implementation, M spiral columnar heating wires are provided in the heating component; the liquid absorption element can be wrapped around the outside of the spiral columnar heating wire, or can be provided inside the column formed by the spiral columnar heating wire. When the heating component includes two or more spiral columnar heating wires, each spiral columnar heating wire is connected in parallel, and the heating component includes at least two power supply pins, and the heating component can be connected to the power supply through at least two power supply pins. The assembly methods of two or more spiral columnar heating wires include but are not limited to the following:

[0059] In the first assembly method, Figure 1 and Figure 2As shown, two or more spiral columnar heating wires are all first heating wires. Each first heating wire includes a heating portion 11 and two power supply pins 12, and the two power supply pins 12 are located at opposite ends of the heating portion 11 of the first heating wire, one of the power supply pins 12 of all the first heating wires is electrically connected to the positive electrode, and the other power supply pins 12 of all the first heating wires are electrically connected to the negative electrode. In order to facilitate large-scale production and installation, and to save space, the heating portions 11 of all the first heating wires are coaxially arranged, and the power supply pins 12 of all the first heating wires used for electrically connecting to the positive electrode are located on the same side of the heating component, and the power supply pins 12 of all the first heating wires used for electrically connecting to the negative electrode are also located on the same side of the heating component. Furthermore, the number of heating coils 111 of the heating portions 11 of all the first heating wires is the same, and the diameters of all the heating coils 111 are the same. It can be understood that the side where all the power supply pins 12 electrically connected to the positive electrode are located and the side where all the power supply pins 12 electrically connected to the negative electrode are located can be the same or different. As Figure 2 As shown, taking the heating component including two identical spiral columnar first heating wires as an example, when the heating parts 11 of the two first heating wires are coaxially arranged, and the power supply pins 12 electrically connected to the positive electrode are both located on the same side of the heating component, and the power supply pins 12 electrically connected to the negative electrode are also located on the same side of the heating component, the heating coils 111 of the two first heating wires are arranged in sequence, so that the heating coils 111 of the two first heating wires are interlaced with each other, which can facilitate large-scale production and installation, and can effectively save space. Figure 3 As shown, the two power supply pins 11 of the first heating wire can also be bent so that the two power supply pins 11 are located at the same end of the heating portion 12 of the first heating wire. The setting positions of the two power supply pins 11 of the first heating wire are not limited here, and can meet actual needs.

[0060] In the second assembly method, if Figure 4As shown, one of the two or more spiral columnar heating wires is the first heating wire, and the rest are the second heating wires. The first heating wire includes a heating portion 11 and two power supply pins 12, and one end of the two power supply pins 12 connected to the heating portion 11 is a connection end 121. Each second heating wire includes only one heating portion 11, one end of the heating portion 11 of all the second heating wires is welded to the connection end 121 of one of the power supply pins 12, and the other end of the heating portion 11 of all the second heating wires is welded to the connection end 121 of another power supply pin 12, one of the two power supply pins 12 is electrically connected to the positive electrode, and the other is electrically connected to the negative electrode. In order to facilitate large-scale production and installation, and to save space, the heating portion 11 of the first heating wire and the heating portion 11 of all the second heating wires are coaxially arranged, the number of heating coils 111 of the heating portion 11 of the first heating wire and the number of heating coils 111 of the heating portion 11 of all the second heating wires are the same, and the diameters of all the heating coils 111 are the same. Compared with the first assembly method, since the entire heating component only includes two power supply pins 12, the electrical connection of the heating component is more convenient and simple. It can be understood that in other embodiments not shown, in order to facilitate installation and welding, the portion of the power supply pin 12 close to the connection end 121 can also be spirally wound into the same ring shape as the heating coil 11.

[0061] In the third assembly method, the first assembly method and the second assembly method are combined. Specifically, all the second heating wires are welded to the corresponding first heating wires, one of the power supply pins 12 of all the first heating wires (including the first heating wires welded with the second heating wires and the first heating wires not welded with the second heating wires) is electrically connected to the positive electrode, and the other power supply pins 12 of all the first heating wires are electrically connected to the negative electrode.

[0062] In the embodiment of the present invention, in order to reduce the power consumption of the heating component, the voltage applied to the heating component must be reduced, that is, the output voltage U output to the heating component needs to be reduced. When the value of the output voltage U is less than 3.7V, it is necessary to make the output power P less than the preset power, and the preset power is a value determined according to the output voltage U and the minimum limit value of the resistance of the heating component under the output voltage U. When the output power P is less than the preset power, the resistance of the heating component is greater than the minimum limit value. When the resistance of the heating component meets the above predetermined conditions, even if a lower voltage is applied to the heating component, sufficient heat can be generated to atomize the smoke liquid, and it can ensure that the heating wire in the heating component can be used safely. For example, when the output voltage U is 1.8V and the required output power P is 6W, the resistance R of the heating component must satisfy R=0.54Ω.

[0063] In an embodiment of the present invention, the resistance of the heating component has a minimum limit value under the output voltage U. When the resistance of the heating component is less than the minimum limit value, the heating wire in the heating component will be blown. Therefore, when the output voltage U output to the heating component is determined, the resistance of the heating component needs to be greater than the minimum limit value, that is, the output power P is less than the preset power.

[0064] In summary, when the output voltage output to the heating component is less than 3.7V, the resistance of the heating component is adjusted so that the heating component can emit the electric power expected by the user and meets the requirements at a voltage less than 3.7V (that is, at low voltage), thereby generating sufficient heat to atomize the smoke liquid; this solves the problem in the prior art that the output voltage of the electronic cigarette is greater than or equal to 3.7V and the resistance of the heating component is too high, resulting in excessive power consumption of the electronic cigarette, and achieves the technical effect of achieving sufficient smoke volume under low voltage and low power consumption, satisfying the user's smoking needs.

[0065] In addition, in actual operation, when the heating time t of the heating component remains unchanged, the atomization effect of the heating component on the smoke liquid is not only related to the power of the heating component, but also to the heat absorption efficiency α of the smoke liquid. Since the heating wire in the heating component will release heat after voltage is applied, part of the released heat is absorbed by the liquid absorption element in contact with the heating wire, and the surface and interior of the liquid absorption element are adsorbed with smoke liquid. The smoke liquid adsorbed on the surface of the liquid absorption element continues to heat up under the heat absorbed by the liquid absorption element and is atomized into smoke. It can be seen that the heat Q absorbed by the liquid absorption element is equal to the heat Q released by the heating component. 电 The following relationship exists:

[0066] Q=α·Q 电 (1)

[0067] Q 电 =P·t (2)

[0068] Q=α·P·t (3)

[0069] Among them, t is the heating time of the heating component, α is the heat absorption efficiency of the smoke liquid, and P is the output power, that is, the heating power of the heating component. Therefore, from the above formula, it can be seen that when the heat absorption efficiency of the smoke liquid is higher, the more heat the liquid absorption element absorbs, and the atomization efficiency of the smoke liquid is higher, that is, the amount of smoke generated in the same time is greater.

[0070] From the heat conduction formula, we know that there is the following relationship between the heat Q absorbed by the absorbent element and the effective contact area A between the heating wire and the absorbent element:

[0071] Q=k·A·ΔT (4)

[0072] Wherein, k is the thermal conductivity of the smoke liquid, and ΔT is the temperature difference before and after the smoke liquid is heated.

[0073] According to formula (3) and formula (4), the heat absorption efficiency α of the smoke liquid satisfies the following formula:

[0074]

[0075] It can be seen from formula (5) that, for the same smoke liquid at a predetermined output power, when the same temperature is raised to atomize into smoke, the heat absorption efficiency α of the smoke liquid is related to the effective contact area A. The larger the effective contact area A, the higher the heat absorption efficiency α of the smoke liquid. That is, in formula (5), the thermal conductivity k is the property of the smoke liquid itself and is a constant; the output power P is also a constant; then when the heating time t and the temperature difference ΔT remain unchanged, that is, when t and ΔT are constants, the heat absorption efficiency α of the smoke liquid is related to the effective contact area A. The larger the effective contact area A, the higher the heat absorption efficiency α of the smoke liquid. For example, when the power P is 10W, the heating time t is 1s, and the temperature difference is 160℃, the heat absorption efficiency of the smoke liquid is α=16kA. Since the thermal conductivity k is the property of the smoke liquid itself, the thermal conductivity k is also known. It can be seen that the larger the effective contact area A, the higher the heat absorption efficiency α of the smoke liquid. Therefore, we need to select a heating component with a large effective contact area A.

[0076] Since the heat Q absorbed by the liquid absorption element is definitely less than the heat Q released by the heating component 电 , then the heat absorption efficiency α of the smoke liquid satisfies: 0<α<1, then the effective contact area A between the heating wire and the liquid absorption element satisfies:

[0077]

[0078] Therefore, when the voltage applied to the heating component and the resistance of the heating component are constant, the atomization effect of the heating component is related to the effective contact area A between the heating wire and the liquid absorbing element; since the liquid absorbing element surface is adsorbed with smoke liquid, the effective contact area A between the heating wire and the liquid absorbing element is actually the effective contact area between the heating wire and the smoke liquid. It is easy to understand that the atomization effect of the heating component is related to the effective contact area A between the heating wire and the liquid absorbing element. Moreover, from formula (6), it can be seen that the effective contact area A is less than the upper limit value Greater than the lower limit 0. When the effective contact area A is greater than the upper limit, the effective contact area A no longer affects the heat absorption efficiency of the smoke liquid.

[0079] In the embodiment of the present invention, the heating component can be formed by connecting M identical spiral columnar heating wires in parallel, wherein the identical means that the heating parts of the heating wires are identical, the length of the heating part of each heating wire is l, and the wire diameter of the heating part of each heating wire is d. It can be seen that the effective contact area A1 of a spiral columnar heating wire and the liquid absorbing element is

[0080] A1=a·l·d (7)

[0081] Among them, a is the effective area coefficient and is a constant. Since a heating wire with a length of l cannot be completely wound into a spiral columnar heating wire, a part of the length of the heating wire needs to be used as a power supply pin to connect to the power supply, and whether the wicking element is placed inside the spiral columnar heating wire or wrapped outside the spiral heating wire will have an impact on the effective contact area. Therefore, the effective contact area needs to be multiplied by an effective area coefficient a. The effective area coefficient a can be measured by R&D personnel based on the setting method of the wicking element and the heating wire in the heating component. It is a constant that changes with the actual structure of the heating component, but it can be measured to obtain a specific value, which is not limited here. For example, the effective area coefficient a can be 0.6, 0.8 or 0.9, etc., depending on the actual structure of the heating component.

[0082] From formula (7), we can know that the effective contact area A of M identical and parallel spiral cylindrical heating wires is: A = a·M·l·d (8)

[0083] From formula (8), it can be seen that the effective contact area A is positively correlated with the number of heating wires M, the length of the heating part of the heating wire l, and the wire diameter d of the heating part of the heating wire. For heating components with the same resistance value, the larger the product of the number of heating wires M, the length of the heating part of the heating wire l, and the wire diameter d of the heating part of the heating wire, or the larger the number of heating wires M, the length of the heating wire l, and the wire diameter d, the larger the effective contact area A, that is, the higher the heat absorption efficiency α of the smoke liquid. In addition, when the effective area coefficient a is certain, that is, the structure of the heating component is also certain, in order to obtain a larger effective contact area A, we need to use a spiral cylindrical heating wire with a larger side area or a larger inner surface. At this time, we regard the spiral cylindrical heating wire as a cylinder.

[0084] Combining formula (7) and formula (8), the length l of the heating portion of the heating wire, the wire diameter d of the heating portion of the heating wire and the number M of the heating wires satisfy:

[0085]

[0086] From formula (9), we can know that:

[0087]

[0088] Furthermore, the resistance R of the heating component satisfies:

[0089]

[0090] Wherein, R0 is the resistance of the heating part of a single spiral columnar heating wire, and

[0091] Then the effective contact area A is:

[0092]

[0093] Here, ρ is the resistivity of the heating part of the heating wire.

[0094] Since the heating component is composed of M identical and parallel spiral cylindrical heating wires, the resistance coefficient ρ of the heating part of the heating wire is a constant that can be determined, but changes with the material of the heating wire. Then, from formula (12), it can be seen that when the resistance value R of the heating component and the resistance coefficient ρ of the heating part of the heating wire remain unchanged, the effective contact area A is positively correlated with the number of heating wires M and the wire diameter d of the heating part of the heating wire, that is, when the resistance value R of the heating component and the resistance coefficient ρ of the heating part of the heating wire remain unchanged, the larger the product of the number of heating wires M and the wire diameter d of the heating part of the heating wire, or the larger the number of heating wires M and the wire diameter d of the heating part of the heating wire, the larger the effective contact area A, that is, the higher the heat absorption efficiency α of the smoke liquid. For example, when the resistance R of the heating component is 0.5Ω and the material of the heating wire is iron chromium, the resistance R of the heating component and the resistivity ρ of the heating part of the heating wire are both known constants, then the effective contact area A depends on the number of heating wires M and the wire diameter d of the heating part of the heating wire. The larger the product of the number of heating wires M and the wire diameter d of the heating part of the heating wire, or the larger the number of heating wires M and the wire diameter d of the heating part of the heating wire, the larger the effective contact area A.

[0095] Furthermore, the relationship between the effective contact area A and the number of heating wires M in the heating component and the wire diameter d of the heating portion of the heating wire is obtained from formula (12). Then, by combining formula (5) and formula (12), the relationship between the liquid absorption efficiency α and the number of heating wires M and the wire diameter d of the heating portion of the heating wire can be obtained. The relationship between the liquid absorption efficiency α and the number of heating wires M and the wire diameter d of the heating portion of the heating wire is as follows:

[0096]

[0097] It can be seen from formula (13) that when the heating time t, temperature difference ΔT, thermal conductivity k, resistance value R of the heating component, resistivity ρ of the heating part of the heating wire, and output voltage U remain unchanged, the heat absorption efficiency α of the smoke liquid is positively correlated with the number of heating wires M and the wire diameter d of the heating part of the heating wire. That is, for heating components with the same resistance and material, if the same voltage U is applied to the heating component so that the heating component rises the same temperature ΔT in the same time t, then the heat absorption efficiency α of the smoke liquid depends on the number of heating wires M and the wire diameter d of the heating part of the heating wire. When the number of heating wires M and the wire diameter d of the heating part of the heating wire are larger, or when the product of the number of heating wires M and the wire diameter d of the heating part of the heating wire is larger, the heat absorption efficiency α of the smoke liquid is larger, and the atomization effect of the heating component is better.

[0098] It can be understood that when the heat absorption efficiency α of the liquid absorption element is constant, that is, the user wants a constant amount of smoke, then the number of heating wires M and the wire diameter d of the heating part of the heating wire are negatively correlated, that is, the larger the number of heating wires M, the smaller the wire diameter d of the heating part of the heating wire needs to be.

[0099] From formula (13), it can be seen that the wire diameter d of the heating part of the heating wire and the number of heating wires M satisfy:

[0100]

[0101] That is, the wire diameter d of the heating portion of the heating wire and the number of heating wires M satisfy:

[0102]

[0103] From formula (15), it can be seen that when the heating time t, temperature difference ΔT, thermal conductivity k, resistance value R of the heating component, resistivity ρ of the heating part of the heating wire, and voltage U remain unchanged, the heat absorption efficiency α of the smoke liquid depends on the number of heating wires M and the wire diameter d of the heating part of the heating wire. When M 2 d 3 When M is larger, the heat absorption efficiency α of the smoke liquid is higher; but when M 2 d 3 achieve When the heat absorption efficiency of the smoke liquid reaches its maximum value, if M 2 d 3 If it continues to grow, the heat absorption efficiency α of the smoke liquid will no longer be affected.

[0104] In the embodiment of the present invention, as a preferred implementation, the number of heating wires M and the wire diameter d of the heating portion of the heating wire meet the following conditions:

[0105] 0.004≤M 2 ·d 3 ≤0.02 (16)

[0106] In addition, in the embodiment of the present invention, the material of the heating wire is iron chromium.

[0107] When the number of heating wires M and the wire diameter d of the heating portion of the heating wires satisfy formula (16), the heating component has a better atomization effect on the smoke liquid.

[0108] It should be noted that, for a heating component with a certain resistance value, the heating component provided in the embodiment of the present invention improves the liquid absorption efficiency of the liquid absorption element by adjusting the number of heating wires in the heating component and the wire diameter of the heating part of the heating wire, thereby improving the atomization effect of the heating component on the smoke liquid, thereby achieving a suitable amount of smoke.

[0109] In summary, for a heating component with a certain resistance value, the factor that affects the atomization effect of the heating component (that is, the heat absorption efficiency of the smoke liquid) is the effective contact area between the liquid absorption element and the heating wire in the heating component. When the effective contact area is larger, the heat absorption efficiency of the smoke liquid is higher, and the atomization effect of the heating component is better. In addition, the effective contact area is also related to the number of heating wires and the wire diameter of the heating part of the heating wire, and the larger the product of the number of heating wires and the wire diameter of the heating part of the heating wire, the larger the effective contact area. Therefore, for a heating component with the same resistance value and material, if the same voltage is applied to the heating component so that the heating component rises to the same temperature in the same time, then the heat absorption efficiency of the smoke liquid depends on the number of heating wires and the wire diameter of the heating part of the heating wire. The larger the product of the number of heating wires and the wire diameter of the heating part of the heating wire, or the larger the number of heating wires and the wire diameter of the heating part of the heating wire, the greater the heat absorption efficiency of the smoke liquid and the better the atomization effect of the heating component.

[0110] A second embodiment of the present invention provides an atomizer, which includes the heating component described in the first embodiment of the present invention.

[0111] like Figure 5 As shown, the atomizer further includes an upper cover assembly 20, a shell 30, a vent pipe 40 and a base assembly 50. The upper cover assembly 20 and the base assembly 50 are respectively arranged at opposite ends of the shell 30, the vent pipe 40 is arranged in the shell 30, and the heating assembly is mounted on the base assembly 50 and accommodated in the shell 30. A liquid storage chamber 31 for storing smoke liquid is arranged in the shell 30, the liquid absorption element is used to absorb the smoke liquid in the liquid storage chamber 31, and the heating wire is used to heat the smoke liquid absorbed by the liquid absorption element under electric drive to form smoke, and the smoke flows out through the vent pipe 40 and the upper cover assembly 20 in sequence for the user to inhale.

[0112] The shell 30 is a hollow structure with two ends penetrating therethrough, and the inner cavity of the shell 30 constitutes a liquid storage cavity 31 .

[0113] The upper cover assembly 20 includes a mouthpiece 21 and an upper cover 22. The upper cover 22 is placed on the housing 30, and a through hole 221 is provided on the upper cover 22. One end of the mouthpiece 21 is inserted into the through hole 221, and the user inhales through the end of the mouthpiece 21 away from the upper cover 22. In one embodiment, the mouthpiece 21 is detachably connected to the upper cover 22, so that the user can clean or replace the mouthpiece. In another embodiment, the mouthpiece 21 is omitted, and the user directly inhales through the through hole 221.

[0114] The vent pipe 40 is a hollow structure with two ends connected, and the inner cavity of the vent pipe 40 constitutes a smoke outlet channel 41. One end of the vent pipe 40 is inserted into the through hole 221, and the other end of the vent pipe 40 passes through the liquid storage chamber 31 and cooperates with the heating component, so that the smoke outlet channel 41 is connected with the heating component and the mouthpiece 21 respectively, so that the smoke generated by the atomized smoke liquid of the heating component can flow smoothly into the mouthpiece 21 through the smoke outlet channel 41. In addition to making the smoke outlet channel 41 located inside and outside the shell 30, it can be understood that in other embodiments not shown, the smoke outlet channel 41 can also be opened in the wall of the shell 30, or the smoke outlet channel 41 can also be located outside the shell 30, for example, a sleeve is arranged outside the shell 30, and the gap between the shell 30 and the sleeve constitutes the smoke outlet channel 41, as long as the smoke outlet channel 41 can be connected with the mouthpiece 21 and the heating component respectively. In order to prevent the smoke liquid from leaking through the gap between the housing 30 and the upper cover 22, the atomizer further includes a sealing member 80, which blocks the upper end opening of the housing 30, and the outer surface of the sealing member 80 is in contact with the cavity wall of the liquid storage cavity 31. The vent pipe 40 passes through the sealing member 80 and is inserted into the through hole 221. The sealing member 80 is made of sealing materials such as rubber or silicone.

[0115] In order to facilitate the collection of smoke and smoothly guide the smoke into the smoke outlet channel 41, the atomizer also includes an atomizing sleeve 60. The heating component is installed on the atomizing sleeve 60, and the other end of the ventilation pipe 40 passes through the liquid storage chamber 31 and is connected to the atomizing sleeve 60, so that the inner cavity of the atomizing sleeve 60 is connected to the smoke outlet channel 41. The smoke generated by the heating component atomizing the smoke liquid enters the smoke outlet channel 41 through the inner cavity of the atomizing sleeve 60. The matching methods of the atomizing sleeve 60 and the heating component include but are not limited to the following:

[0116] Please continue reading Figure 5 In the first matching mode, through grooves 61 are provided on opposite sides of the atomizing sleeve 60, and the two ends of the liquid absorbing element respectively pass through the corresponding through grooves 61 and extend into the liquid storage chamber 31 to absorb the smoke liquid in the liquid storage chamber 31, and M heating wires are wound around the portion of the liquid absorbing element located in the inner cavity of the atomizing sleeve 60. Further, the atomizer also includes a support seat 70, which is arranged below the liquid absorbing element and is used to support the two ends of the liquid absorbing element. The outer surface of the support seat 70 can be arranged in contact with the cavity wall of the liquid storage chamber 31 to seal the liquid storage chamber 31. The support seat 70 can be made of sealing materials such as silicone or rubber. Further, in order to allow the smoke liquid to fully contact with the liquid absorbing element, a smoke liquid flow channel (not shown) can be provided on the liquid absorbing element, and the smoke liquid flow channel runs through the opposite ends of the liquid absorbing element along the axial direction of the liquid absorbing element, thereby, the smoke liquid can enter the interior of the liquid absorbing element through the smoke liquid flow channel, thereby increasing the contact area between the liquid absorbing element and the smoke liquid.

[0117] See also Figure 6In the second matching mode, the liquid absorption element is a hollow tubular structure with two ends connected. The liquid absorption element is arranged on the atomizing sleeve 60 along the axial direction of the atomizing sleeve 60, and the outer surface of the liquid absorption element is in contact with the inner surface of the atomizing sleeve 60. The side wall of the atomizing sleeve 60 is provided with a liquid inlet hole 62, and the smoke liquid in the liquid storage cavity 31 is absorbed by the liquid absorption element through the liquid inlet hole 62. M heating wires are arranged in the inner cavity of the liquid absorption element.

[0118] The base assembly 50 includes an air inlet 51, a positive contact 52, a negative contact 53 and a base 54. The air inlet 51 is connected to the outside atmosphere and the heating assembly respectively. When the user draws, the outside air enters through the air inlet 51, mixes with the smoke generated by the atomized smoke liquid of the heating assembly, and then flows out from the smoke outlet channel 41 and the mouthpiece 21. It can be understood that in other embodiments not shown, the air inlet 51 can also be set on the upper cover assembly 20, the shell 30 or the battery device of the electronic cigarette, as long as the air inlet 51 can be connected to the heating assembly. The positive contact 52 and the negative contact 53 are electrically connected to the power supply pins 12 corresponding to the heating assembly respectively. When the atomizer is connected to the battery device of the electronic cigarette, the positive contact 52 and the negative contact 53 are also electrically connected to the battery device, so that the battery device can provide electrical energy to the heating assembly.

[0119] like Figure 5 As shown, in one embodiment, the air inlet 51 is opened on the base 54, and the positive contact 52 and the negative contact 53 are both arranged on the base 54. The upper end of the positive contact 52 and the upper end of the negative contact 53 respectively clamp the corresponding power supply pin 12 to be electrically connected with the corresponding power supply pin 12, and the lower end of the positive contact 52 and the lower end of the negative contact 53 both penetrate the lower end surface of the base 54, so that the lower end of the positive contact 52 and the lower end of the negative contact 53 can be electrically connected with the battery device. In order to achieve electrical connection and prevent short circuit, the positive contact 52 and the negative contact 53 are made of conductive material, and the base 54 is made of insulating material. It can be understood that in other embodiments not shown, the power supply pin 12 can also be clamped between the positive contact 52 and the base 54 and between the negative contact 52 and the base 54, respectively.

[0120] like Figure 6As shown, in another embodiment, the atomizing sleeve 60 is mounted on the base 54, the positive electrode contact 52 is arranged in the lower end of the atomizing sleeve 60, the air inlet 51 is opened on the positive electrode contact 52, an insulating member 55 is sandwiched between the positive electrode contact 52 and the atomizing sleeve 60, and the power supply pin 12 is sandwiched between the positive electrode contact 52 and the insulating member 55 and between the atomizing sleeve 60 and the insulating member 55. The base 54 is made of conductive material, and the base 54 is also used as a negative electrode contact. The atomizing sleeve 60 and the positive electrode contact 52 are also made of conductive material. In this way, the base 54 is electrically connected to the corresponding power supply pin 12 through the atomizing sleeve 60, and the positive electrode contact 52 is also electrically connected to the corresponding power supply pin 12. It can be understood that in other embodiments not shown, the base 54 can also be used as a positive electrode contact, and accordingly, a negative electrode contact 53 is arranged in the atomizing sleeve 60.

[0121] A third embodiment of the present invention provides an electronic cigarette, which includes a battery device and the atomizer of the second embodiment of the present invention, and the output voltage of the electronic cigarette to the heating component is less than 3.7V, and the output power P of the electronic cigarette to the heating component is less than a preset power, and the preset power is a value determined according to the output voltage U of the electronic cigarette to the heating component and the minimum limit value of the resistance of the heating component under the output voltage U.

[0122] Optionally, the output voltage of the electronic cigarette has a voltage range of [1V-3.7V), and the output power of the electronic cigarette has a power range of [5W-10W). The power consumption is low and sufficient heat can be generated for atomization of the smoke liquid, and a better atomization effect can be obtained.

[0123] In addition, in the embodiment of the present invention, the electronic cigarette may include a rechargeable battery or a non-rechargeable battery, which is not limited in this embodiment. The type of battery in the electronic cigarette may be a lithium battery, an alkaline dry battery, a nickel-hydrogen battery, a lead-acid battery, an iron-nickel battery, a metal oxide battery, a zinc-silver battery, a zinc-nickel battery, a hydrogen-oxygen fuel cell, a solar cell, and the like, which are rechargeable or non-rechargeable batteries that can provide electrical energy.

[0124] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0125] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating component, characterized in that: The heating component includes M heating wires and a liquid absorbing element, wherein the M heating wires include at least one first heating wire and at least one second heating wire, the first heating wire includes a heating portion and two power supply pins, the second heating wire includes a heating portion, both ends of the heating portions of all the second heating wires are welded to the two power supply pins of the corresponding first heating wires, one of the power supply pins of all the first heating wires is electrically connected to a positive contact, and the other of the power supply pins of all the first heating wires is electrically connected to a negative contact, the output voltage output to the heating component is U, the value of the output voltage U is less than 3.7V, M is a positive integer, and the output to the heating component The output power on is P, the output power P is less than the preset power, the preset power is a value determined according to the output voltage U and the minimum limit value of the resistance of the heating component under the output voltage U, the first heating wire and the second heating wire are both spiral columnar heating wires, the heating part of the first heating wire and the heating part of the second heating wire each include at least one heating coil, all the heating parts of the first heating wire and all the heating parts of the second heating wire are coaxially arranged, the liquid absorbing element is placed inside the heating wire or wrapped outside the heating wire, the wire diameter of the heating part of the first heating wire and the wire diameter of the heating part of the second heating wire are both d, and d and M satisfy the following conditions: 0.004≤M 2 ·d 3 ≤0.

02.

2. The heating component according to claim 1, characterized in that: The number of the heating coils of all the first heating wires is the same, and the diameters of the heating coils of all the first heating wires are the same.

3. The heating component according to claim 1, characterized in that: The heating coils of the second heating wire welded to the same first heating wire have the same number and the same diameter.

4. The heating component according to claim 1, characterized in that: At least one of the first heating wires is welded with zero of the second heating wires, or at least one of the first heating wires is welded with at least one of the second heating wires.

5. An atomizer, characterized in that: The atomizer comprises a positive electrode contact, a negative electrode contact and a heating component as described in any one of claims 1 to 4.

6. The atomizer according to claim 5, characterized in that The atomizer further comprises a smoke outlet channel and a liquid storage chamber for storing smoke liquid, the liquid absorption element is used to absorb the smoke liquid in the liquid storage chamber, the heating wire is used to heat the smoke liquid absorbed by the liquid absorption element under electric drive to form smoke, and the smoke flows out through the smoke outlet channel.

7. An electronic cigarette, characterized in that: The electronic cigarette comprises the atomizer according to claim 5 or 6, and further comprises a power supply device. When the atomizer is electrically connected to the power supply device, the power supply device can output an output voltage U to the heating component.

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