WO2019154143A1 - Heating component, atomizer, and electronic cigarette - Google Patents

Abstract

A heating component, comprising: M heating coils in the shape of a spiral column; and a liquid-absorbent element. The heating component further comprises at least two power supply pins. Each of the heating coils comprises a heating portion. The output voltage output to the heating component is U, and the output power output to the heating component is P. The value of the output voltage U is less than 3.7 V. The output power P is less than a preset power. The preset power is a value determined on the basis of the output voltage U and a lower limit of a resistance value of the heating component under the output voltage U. M is a positive integer. The invention resolves the issue of high power consumption in prior-art electronic cigarettes due to a high resistance value caused by an output voltage greater than or equal to 3.7 V, and achieves the technical effect of generating a sufficient amount of vapor even with low voltage and low power consumption, thereby satisfying user needs.

Description

Heating components, atomizers and electronic cigarettes Technical field

The invention relates to the field of electronic cigarette technology, in particular to a heat generating component, an atomizer and an electronic cigarette.

Background technique

E-cigarette is an electronic product that imitates cigarettes, which can generate smoke by atomizing the smoke liquid, which can be inhaled from the cigarette holder by the user of the electronic cigarette, thereby achieving the purpose of simulating smoking.

However, the resistance of the prior art electronic cigarette heat generating member is about 1 ohm. In order to obtain a suitable amount of smoke, the output voltage of the electronic cigarette needs to be set at 3.7 volts or more, so that the output power of the electronic cigarette reaches 15 watts. In this way, when the electronic cigarette with a constant electric quantity is outputted with the above output parameters, the power consumption is too large, the number of the suction ports is too small, and the electric quantity is quickly consumed completely, and the user needs to charge the electronic cigarette before continuing to perform the suction. inconvenient.

Summary of the invention

In order to solve the problem that the power consumption of the electronic cigarette is too fast in the prior art, the embodiment of the invention provides a heat generating component, an atomizer and an electronic cigarette. The technical solution is as follows:

In a first aspect, a heat generating component is provided, the heat generating component comprising M spiral column heating wires and a liquid absorbing element, the heat generating component further comprising at least two power supply pins, each of the heating wires including a heat generating portion, The output voltage outputted to the heat generating component is U, and the output power outputted to the heat generating component is P;

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

Optionally, the effective contact area A of the heating wire and the liquid absorbing element is:

Where k is the thermal conductivity of the liquid smoke, ΔT is the temperature difference before and after the heating of the liquid, and t is the heat generation time of the heat generating component.

Optionally, the length l of the heat generating portion of the heating wire, the wire diameter d of the heat generating portion of the heating wire, and the number of the heating wire roots M satisfy:

Where a is the effective area factor and is constant.

Optionally, the M is an integer greater than or equal to 2 and the M heating wires are connected in parallel with each other, and the wire diameter d of the heat generating portion of the heating wire and the heating wire number M satisfy:

Where a is a constant area coefficient and is constant, ρ is a resistivity of a heat generating portion of the heating wire, and R is a resistance value of the heat generating component.

Optionally, the heating wire number M and the wire diameter d of the heat generating portion of the heating wire satisfy the following conditions:

0.004 ≤ M ² · d ³ ≤ 0.02.

Optionally, the heating wire is made of iron chromium.

Optionally, the heating wires are all first heating wires, and each of the first heating wires comprises one of the heat generating portions and two of the power supply pins, and one of the first heating wires The power supply pins are electrically connected to a positive electrode, and the other of the power supply pins of the first heating wire are electrically connected to a negative electrode.

Optionally, the heat generating portions of all the first heating wires are coaxially disposed, and all the power feeding pins of the first heating wire for electrically contacting the positive electrode are located on the same side of the heat generating component. All of the power supply pins of the first heating wire for electrical connection with the negative electrode are also located on the same side of the heat generating component.

Optionally, each of the heat generating portions includes at least one heat generating ring, the number of the heat generating rings of all the first heating wires is the same, and the heat generating rings of all the first heating wires have the same diameter .

Optionally, one of the heating wires is a first heating wire, and the rest are second heating wires, and the first heating wire includes one heat generating portion and two power supply pins, two Each of the power supply pins includes a connection end for connecting to the heat generating portion of the first heating wire, and each of the second heating wires includes only one of the heat generating portions, all of the second One end of the heat generating portion of the heating wire is welded to a connection end of one of the power supply pins, and the other end of the heat generating portion of all the second heating wires is connected to another power supply pin welding.

Optionally, the heat generating portion of the first heating wire and the heat generating portion of all the second heating wires are disposed coaxially.

Optionally, each of the heat generating portions includes at least one heat generating ring, and the number of the heat generating rings of the heat generating portion of the first heating wire and the number of the heat generating rings of the heat generating portions of all the second heating wires are both The same, and all of the heating coils have the same diameter.

Optionally, the heating wire comprises at least two first heating wires and at least one second heating wire, and all of the second heating wires are welded to the corresponding first heating wires, each of the Each of the heating wires includes a heat generating portion and two of the power supply pins, and one of the power supply pins of all of the first heating wires is electrically connected to a positive electrode, and all of the first heating wires are The other power supply pin is electrically connected to a negative contact.

In a second aspect, there is provided an atomizer comprising the heat generating component of the first aspect of the invention.

Optionally, the atomizer further includes a smoke outlet channel and a liquid storage chamber for storing the liquid smoke, the liquid absorption element is configured to adsorb the liquid smoke in the liquid storage chamber, and the heating wire is used for The smoke liquid adsorbed by the liquid absorbing member is heated to generate smoke, and the smoke flows out through the smoke passage.

Optionally, the atomizer further includes an atomization sleeve, the heat generating component is mounted on the atomization sleeve, and the smoke passage is in communication with the inner cavity of the atomization sleeve.

Optionally, the opposite sides of the atomizing sleeve are provided with a through groove, and two ends of the liquid absorbing element respectively pass through the corresponding through grooves and protrude into the liquid storage cavity, and the heating wire is wound The portion of the liquid absorbing element located in the inner cavity of the atomization sleeve.

Optionally, the liquid absorbing member is disposed in the atomization sleeve along an axial direction of the atomization sleeve, and an outer surface of the liquid absorption member is in contact with an inner surface of the atomization sleeve, A heating wire is disposed in the inner cavity of the liquid absorbing member, and the atomizing sleeve is provided with a liquid inlet hole communicating with the liquid storage chamber and the liquid absorbing member.

In a third aspect, an electronic cigarette is provided, the electronic cigarette comprising the atomizer of the second aspect of the invention, and an output voltage U of the electronic cigarette output to the heat generating component is less than 3.7V, the electron The output power P of the smoke output to the heat generating component is less than a preset power, and the preset power is an output voltage U according to the electronic cigarette output to the heat generating component and a minimum limit of the resistance value of the heat generating component under the output voltage U The value determined by the value.

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

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

Optionally, when the battery is a rechargeable battery, the rechargeable battery is a lithium battery, a lead-acid battery, a nickel-hydrogen battery, an iron-nickel battery, a metal oxide battery, a zinc-silver battery, a zinc-nickel battery, and a solar battery. At least one of them.

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 battery.

In a fourth aspect, a heat generating component is provided, the heat generating component comprising M heating wires and a liquid absorbing element, wherein the M heating wires comprise 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, and the second heating wire includes a heating portion, and both ends of the heat generating portion of all the second heating wires are soldered to the corresponding first heat On the two power supply pins of the wire, one of the power supply pins of the first heating wire is electrically connected to a positive contact, and the other of the power supply pins of the first heating wire Each of them is electrically connected to a negative electrode, and an output voltage outputted to the heat generating component is U. The output voltage U has a value less than 3.7V, and M is a positive integer.

Optionally, all of the heat generating portions of the first heating wire and all of the heat generating portions of the second heating wire are coaxially disposed, and all of the power supply pins electrically connected to the positive electrode are located at the On the same side of the heat generating component, all of the power supply pins electrically connected to the negative electrode are located on the same side of the heat generating component.

Optionally, the first heating wire and the second heating wire are both spiral column heating wires, and the heat generating portion of the first heating wire and the heat generating portion of the second heating wire each include at least one heating ring.

Optionally, the number of the heat generating rings of all the first heating wires is the same, and the diameters of the heat generating rings of all the first heating wires are the same.

Optionally, the number of the heating coils of the second heating wire soldered on the same first heating wire is the same and the diameter is the same.

Optionally, at least one of the first heating wires is soldered with zero of the second heating wires, or at least one of the second heating wires is soldered to each of the first heating wires.

Optionally, the wire diameter of the heat generating portion of the first heating wire and the wire diameter of the heat generating portion of the second heating wire are both d, and d and M satisfy the following conditions:

0.004 ≤ M ² · d ³ ≤ 0.02.

According to a fifth aspect, there is provided an atomizer comprising the heat generating component of the fourth aspect of the invention and the positive electrode contact and the negative electrode contact.

Optionally, the atomizer further includes a smoke outlet channel and a liquid storage chamber for storing the liquid smoke, the liquid absorption element is configured to adsorb the liquid smoke in the liquid storage chamber, and the heating wire is used for The smoke liquid adsorbed by the liquid absorbing member is heated to generate smoke, and the smoke flows out through the smoke passage.

According to a sixth aspect, an electronic cigarette is provided, the electronic cigarette comprising the atomizer of the fifth aspect of the invention, the electronic cigarette further comprising a power supply device, wherein the atomizer is electrically connected to the power supply device The power supply device is capable of outputting an output voltage U to the heat generating component.

In summary, the heat generating component of the present invention can also emit the electric power desired by the user at a voltage of less than 3.7V (that is, at a low voltage), thereby generating sufficient heat to atomize the liquid smoke; solving the prior art The output voltage of the electronic cigarette is greater than or equal to 3.7V, and the problem of excessively high power consumption of the electronic cigarette caused by the high resistance value achieves the technical effect of achieving sufficient amount of smoke under low voltage and low power consumption, and satisfies the user's suction. demand.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a heating wire provided in an embodiment of the present invention.

2 is an exploded perspective view of a heat generating component provided in an embodiment of the present invention (the liquid guiding member is omitted).

Fig. 3 is a schematic view showing the structure of another heating wire provided in an embodiment of the present invention.

4 is a schematic structural view of another heat generating component provided in one embodiment of the present invention (the liquid guiding member is omitted).

FIG. 5 is a schematic structural view of an atomizer provided in an embodiment of the present invention.

6 is a schematic structural view of another atomizer provided in an embodiment of the present invention (the upper cover assembly, the housing, and the vent pipe are omitted).

Heating department: 11	Heating ring: 111	Power supply pin: 12
Connection end: 121	Upper cover assembly: 20	Cigarette holder: 21
Top cover: 22	Through hole: 221	Housing: 30
Reservoir chamber: 31	Snorkel: 40	Smoke passage: 41
Base assembly: 50	Air intake: 51	Positive contact: 52
Negative contact: 53	Base: 54	Insulation: 55
Atomization sleeve: 60	Through slot: 61	Inlet hole: 62
Support seat: 70	Seal: 80

Detailed ways

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

A first embodiment of the present invention provides a heat generating component including M heating wires and a liquid absorbing member, M being a positive integer. After the heating element is energized, the heating wire in the heating element can atomize the smoke liquid absorbed on the liquid absorbing element into smoke. The heating wires in the heat generating component may be connected in series, in parallel, or in series and in parallel. The liquid absorbing element may be wrapped around the heating wire, or the heating wire may be wrapped around the outside of the liquid absorbing element.

In a possible embodiment, the heat generating component is provided with M spiral column heating wires; the liquid absorbing element may be wrapped around the spiral column heating wire or may be disposed inside the cylindrical body formed by the spiral column heating wire. When the heat generating component includes two or more spiral column heating wires, each spiral column heating wire is connected in parallel, the heat generating component includes at least two power supply pins, and the heat generating component can be connected to the power source through at least two power supply pins. . The assembly method of two or more spiral column heating wires includes but is not limited to the following:

In the first assembly method, as shown in FIGS. 1 and 2, two or more spiral columnar heating wires are the first heating wires. Each of the first heating wires includes a heat generating portion 11 and two power supply pins 12, and the two power supply pins 12 are located at opposite ends of the heat generating portion 11 of the first heating wire, and one of the first heating wires is powered. The pins 12 are 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, all the heating elements 11 of the first heating wire are coaxially disposed, and all the first heating wires are used for the same electrical connection pins 12 that are electrically connected to the positive electrodes. On the side, all of the first heating wires for the electrical connection pins 12 electrically connected to the negative electrodes are also located on the same side of the heat generating component. Further, the number of the heat generating rings 111 of the heat generating portions 11 of all the first heating wires is the same, and the diameters of all the heat generating rings 111 are the same. It can be understood that the side where the power supply pin 12 electrically connected to the positive electrode is located and the side where all the power supply pins 12 electrically connected to the negative electrode are located may be the same or different. As shown in FIG. 2, the first heating wire including two identical spiral columns is taken as an example. When the heat generating portions 11 of the two first heating wires are coaxially disposed, and the power supply pins are electrically connected to the positive electrode. 12 are located on the same side of the heat generating component, and when the power supply pins 12 electrically connected to the negative electrode are also located on the same side of the heat generating component, the heating coils 111 of the two first heating wires are sequentially disposed, so that the two first heating wires are arranged. The heating coils 111 are interspersed with each other, so that mass production and installation can be facilitated, and space can be effectively saved. As shown in FIG. 3, the two power supply pins 11 of the first heating wire may also be bent such that the two power supply pins 11 are located at the same end of the heat generating portion 12 of the first heating wire. The arrangement positions of the two power supply pins 11 of the first heating wire are not limited herein, and the actual requirements may be met.

In the second assembly mode, as shown in FIG. 4, one of the two or more spiral column heating wires is the first heating wire, and the rest are the second heating wires, and the first heating wire includes a heat. The portion 11 and the two power supply pins 12, and one end of the two power supply pins 12 connected to the heat generating portion 11 is a connection end 121. Each of the second heating wires includes only one heat generating portion 11, and one end of the heat generating portion 11 of all the second heating wires is welded to the connecting end 121 of one of the power supply pins 12, and the heat generating portion 11 of all the second heating wires is further One end is soldered to the connection end 121 of the other power supply pin 12, and 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 heat generating portion 11 of the first heating wire and the heat generating portion 11 of all the second heating wires are coaxially disposed, and the number of the heat generating rings 111 of the heat generating portion 11 of the first heating wire And the number of the heat generating rings 111 of the heat generating portion 11 of all the second heating wires is the same, and the diameters of all the heat generating rings 111 are the same. Compared with the first assembly method, since the entire heat generating component includes only two power supply pins 12, the electrical connection to the heat generating component is more convenient and simple. It can be understood that, in other embodiments not shown, in order to facilitate mounting and soldering, the portion of the power supply pin 12 close to the connection end 121 can also be screwed into the same ring shape as the heat generating ring 11.

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

In the embodiment of the present invention, in order to reduce the power consumption of the heat generating component, the voltage applied to the heat generating component is lowered, that is, the output voltage U output to the heat generating component needs to be lowered. When the value of the output voltage U is less than 3.7V, it is necessary to make the output power P smaller 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 heat generating component at the output voltage U. When the output power P is less than the preset power, the resistance of the heat generating component is greater than the minimum limit. When the resistance value of the heat generating component satisfies the above predetermined condition, even if a lower voltage is applied to the heat generating component, sufficient heat can be generated to atomize the liquid smoke, and the heat generating wire in the heat generating component can be safely used. For example, when the output voltage U is 1.8V and the required output power P is 6W, then the resistance R of the heat generating component should satisfy R=0.54Ω.

In the embodiment of the present invention, the resistance value of the heat generating component has a minimum limit value under the output voltage U. When the resistance value of the heat generating component is less than the minimum limit value, the heating wire in the heat generating component is melted, so when the output is heated When the output voltage U of the component is determined, the resistance of the heat generating component needs to be greater than the minimum limit value, that is, the output power P is less than the preset power.

In summary, when the output voltage output to the heat generating component is less than 3.7V, the resistance value of the heat generating component is adjusted, so that the heat generating component can also emit the desired electric power desired by the user at a voltage of less than 3.7V (that is, at a low voltage). Therefore, generating sufficient heat to atomize the liquid smoke; solving the problem that the output voltage of the electronic cigarette is greater than or equal to 3.7V in the prior art, and the electric resistance of the heat generating component is too high, thereby achieving the problem of excessively high power consumption of the electronic cigarette. The technical effect of achieving sufficient amount of smoke under low voltage and low power consumption meets the user's demand for suction.

In addition, in actual operation, in the case where the heat generation time t of the heat generating component does not change, the atomization effect of the heat generating component on the smoke liquid is not only related to the power of the heat generating component, but also related to the heat absorbing efficiency α of the smoke liquid. Since the heating wire in the heat generating component is discharged after the voltage is applied, a part of the released heat is absorbed by the liquid absorbing member that is in contact with the heating wire, and the surface of the liquid absorbing member is adsorbed with the liquid smoke, and the surface of the liquid absorbing member is adsorbed. The liquid smoke continuously heats up under the heat absorbed by the liquid absorbing element to atomize into smoke. It can be seen, there is a relationship between the absorbent element _electrically heat Q absorbed by the heat generating component and the heat Q released:

Q=α·Q _electricity (1)

Q _electricity = P · t (2)

Q=α·P·t (3)

Where t is the heat generation time of the heat generating component, α is the heat absorbing efficiency of the smoke liquid, and P is the output power, that is, the heat power of the heat generating component. Therefore, it can be known from the above formula that when the heat absorption efficiency of the liquid smoke is higher, the more heat absorbed by the liquid absorption element, the higher the atomization efficiency for the liquid smoke, that is, the amount of smoke generated in the same time. It is bigger.

According to the heat transfer formula, the following relationship exists between the heat Q absorbed by the liquid absorbing element and the effective contact area A of the heat generating wire and the liquid absorbing element:

Q=k·A·ΔT (4)

Where k is the thermal conductivity of the smoke liquid, and ΔT is the temperature difference before and after the heating of the smoke liquid.

According to formula (3) and formula (4), the endothermic efficiency α of the liquid smoke satisfies the following formula:

It can be seen from the formula (5) that the heat absorbing efficiency α of the liquid smoke is related to the effective contact area A when the same liquid liquid is atomized into the same temperature at a predetermined output power. The larger the effective contact area A, the higher the heat absorption efficiency α of the liquid smoke. That is, in formula (5), the thermal conductivity k is the property of the smoke liquid itself, which is a constant; the output power P is also a constant; then when the heat generation time t and the temperature difference ΔT are constant, that is, t and ΔT are constant When the heat absorption efficiency α of the liquid smoke 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 10 W, the heating time t is 1 s, and the temperature difference is 160 ° C, the endothermic efficiency of the smoke liquid is α=16 kA, and since the thermal conductivity k is the property of the liquid smoke itself, the thermal conductivity k is also known. Then, it can be seen that the larger the effective contact area A, the higher the heat absorption efficiency α of the liquid smoke. Therefore, we need to use a heat-generating component with a large contact area A.

And because the heat absorbed by the absorbent member is smaller than heat Q Q certainly discharged _electrical heating element, the heat absorption efficiency of the smoke liquid [alpha] satisfies: 0 <α <1, then, the heating wire with the liquid-absorbent element effective contact area A Satisfy:

Therefore, when the voltage applied to the heat generating component and the resistance value of the heat generating component are constant, the atomizing effect of the heat generating component is related to the effective contact area A of the heating wire and the liquid absorbing member; since the liquid absorbing liquid is adsorbed on the surface of the liquid absorbing member, the heating wire The effective contact area A with the liquid absorbing element is actually the effective contact area of the heating wire and the smoke liquid, and it is well understood that the atomization effect of the heat generating component is related to the effective contact area A of the heating wire and the liquid absorbing element. Moreover, as shown by the formula (6), the effective contact area A is smaller than the upper limit value.

When the effective contact area A is greater than the upper limit value, the effective contact area A no longer affects the heat absorption efficiency of the liquid smoke.

In the embodiment of the present invention, the heat generating component may be formed by connecting M identical spiral column heating wires in parallel, wherein the same means that the heat generating portions of the heating wire are the same, and the length of the heat generating portion of each heating wire is l, and each heating wire is The wire diameter of the heat generating portion is d. It can be seen that the effective contact area A ₁ between a spiral columnar heating wire and the liquid absorbing element is

A ₁ =a·l·d (7)

Where a is the effective area factor and is constant. Since the heating wire of length l cannot be completely wound into a spiral column heating wire, a part of the length of the heating wire needs to be connected to the power source as a power supply pin, and the liquid absorbing element is placed inside the spiral column heating wire. It is also wrapped around the spiral heating wire to have an effect on the effective contact area. Therefore, the effective contact area needs to be multiplied by an effective area factor a. The effective area factor a can be measured by the research and development personnel according to the setting mode of the liquid absorbing element and the heating wire in the heat generating component, and is a constant that changes according to the actual structural change of the heat generating component, but can be measured to obtain a specific value, and is not used here. limited. For example, the effective area factor a may be 0.6, 0.8, or 0.9, etc., depending on the actual structure of the heat generating component.

It can be known from the formula (7) that the effective contact area A of the M spiral and the parallel spiral heating filaments is:

A=a·M·l·d (8)

From the formula (8), the effective contact area A is positively correlated with the number M of the heating filaments, the length l of the heat generating portion of the heating wire, and the wire diameter d of the heating portion of the heating wire. For the heat generating component with the same resistance value, the number of the heating wire number M, the length of the heating portion length of the heating wire and the wire diameter d of the heating wire are larger, or the number of heating wires M, the length of the heating wire l, and the heating wire diameter The larger d is, the larger the effective contact area A is, that is, the higher the heat absorption efficiency α of the liquid smoke. In addition, when the effective area factor a is constant, that is, the structure of the heat generating component is also fixed, in order to obtain a larger effective contact area A, we need to select a spiral columnar heating wire having a larger side area or a larger inner surface. When we look at the spiral column heating wire as a cylinder.

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

It can be known from formula (9):

Further, the resistance value R of the heat generating component satisfies:

Wherein R ₀ is a resistance value of a heat generating portion of a single spiral columnar heating wire, and

The effective contact area A is:

Where ρ is the electric resistance coefficient of the heat generating portion of the heating wire.

Since the heat generating component is composed of M identical spiral spiral heating wires in parallel, the electric resistance coefficient ρ of the heat generating portion of the heating wire is determinable, but varies with the heating wire material. Then, as shown in the formula (12), when the resistance value R of the heat generating component and the electric resistance coefficient ρ of the heat generating portion of the heating wire are constant, the effective contact area A and the number of the heating wires M and the wire diameter d of the heat generating portion of the heating wire Positive correlation, that is, when the resistance value R of the heat generating component and the resistance coefficient ρ of the heat generating portion of the heating wire are constant, the product of the number M of the heating wire and the wire diameter d of the heat generating portion of the heating wire is larger, or the heating wire root The larger the wire diameter d of the heat generating portion of the number M and the heating wire, the larger the effective contact area A, that is, the higher the heat absorbing efficiency α of the liquid smoke. For example, when the resistance R of the heat generating component is 0.5 Ω, and the material of the heating wire is iron chrome, the resistance R of the heat generating component and the resistivity ρ of the heat generating portion of the heating wire are all known constants, then the effective contact area A It depends on the number of heating wires M and the wire diameter d of the heat generating portion of the heating wire, the larger the product of the number of heating wires M and the wire diameter d of the heating portion of the heating wire, or the number of heating wires M and the heating of the heating wire. The larger the wire diameter d of the portion, the larger the effective contact area A.

Further, for the formula (12), the relationship between the effective contact area A and the number M of the heating filaments in the heat generating component and the wire diameter d of the heat generating portion of the heating wire is obtained, and then the suction can be obtained by combining the formula (5) and the formula (12). The relationship between the liquid efficiency α and the number M of the heating filaments and the wire diameter d of the heat generating portion of the heating filament, the relationship between the liquid absorption efficiency α and the number M of the heating filaments and the wire diameter d of the heating portion of the heating filament are as follows:

It can be known from the formula (13) that when the heat generation time t, the temperature difference ΔT, the thermal conductivity k, the resistance value R of the heat generating component, the resistance coefficient ρ of the heat generating portion of the heating wire, and the output voltage U are constant, the heat absorbing efficiency of the liquid smoke α is positively correlated with the number M of the heating filaments and the wire diameter d of the heating portion of the heating filament. That is, for a heat generating component having the same resistance and material, if the same voltage U is applied to the heat generating component, so that the heat generating component rises by the same temperature ΔT within the same time t, the heat absorbing efficiency α of the liquid smoke depends on the heat generation. The wire number M and the wire diameter d of the heat generating portion of the heating wire. When the number of the heating wires M and the wire diameter d of the heat generating portion of the heating wire are larger, or when the product of the number M of the heating wires and the wire diameter d of the heat generating portion of the heating wire is larger, the heat absorbing efficiency α of the liquid smoke is higher. Large, heat generating components have better atomization effects.

It can be understood that when the heat absorbing efficiency α of the liquid absorbing element is constant, that is, the user wants a constant amount of smoke, the number M of the heating wire is negatively correlated with the wire diameter d of the heat generating portion of the heating wire, that is, heat generation. The larger the number of filaments M, the smaller the wire diameter d of the heat generating portion of the heating wire is required.

It can be seen from the formula (13) that the wire diameter d of the heat generating portion of the heating wire and the number of heating wires M satisfy:

That is, the wire diameter d of the heat generating portion of the heating wire and the number of heating wires M satisfy:

It can be known from the formula (15) that when the heat generation time t, the temperature difference ΔT, the thermal conductivity coefficient k, the resistance value R of the heat generating component, the resistance coefficient ρ of the heat generating portion of the heating wire, and the voltage U are constant, the heat absorbing efficiency α of the liquid smoke depends on The wire diameter d of the heating wire root M and the heating portion of the heating wire, the higher the M ² d ³ is, the higher the heat absorption efficiency α of the liquid smoke; but when the M ² d ³ reaches

At the time, the endothermic efficiency α of the liquid smoke reaches a maximum value, and if M ² d ³ continues to become large, the endothermic efficiency α of the liquid smoke is no longer affected.

In the embodiment of the present invention, as a preferred embodiment, the number of the heating wires M and the wire diameter d of the heat generating portion of the heating wire satisfy the following conditions:

0.004 ≤ M ² · d ³ ≤ 0.02 (16)

Further, in the embodiment of the invention, the material of the heating wire is iron chromium.

When the number of the heating wires M and the wire diameter d of the heat generating portion of the heating wire satisfy the formula (16), the heat generating component has a good atomizing effect on the liquid smoke.

It should be noted that the heat generating component provided by the embodiment of the present invention improves the suction of the liquid absorbing component by adjusting the number of the heating wire in the heat generating component and the wire diameter of the heat generating portion of the heating wire for the heat generating component with a certain resistance value. The liquid efficiency, thereby increasing the atomization effect of the heat generating component on the smoke liquid, thereby achieving a suitable amount of smoke.

In summary, for a heat-generating component with a certain resistance value, the factor affecting the atomization effect of the heat-generating component (that is, the heat-absorbing efficiency of the smoke liquid) is the effective contact area of the liquid-absorbent component and the heating wire in the heat-generating component, when effective contact The larger the area, the higher the heat absorption efficiency of the liquid smoke, and the better the atomization effect of the heat generating component. Further, the effective contact area is also related to the number of heating wires and the wire diameter of the heat generating portion of the heating wire, and the larger the product of the number of heating wires and the wire diameter of the heat generating portion of the heating wire, the larger the effective contact area. Therefore, for a heat-generating component with the same resistance and material, if the same voltage is applied to the heat-generating component, so that the heat-generating component raises the same temperature in the same time, the heat absorption efficiency of the smoke liquid depends on the number of heating wires and the heat generation. The product of the wire diameter of the heat generating portion of the wire, the product of the number of heating wires and the wire diameter of the heat generating portion of the heating wire is larger, or the number of heating wires and the wire diameter of the heat generating portion of the heating wire are larger, the heat absorbing efficiency of the liquid smoke The larger the heat generating component, the better the atomization effect.

A second embodiment of the present invention provides an atomizer comprising the heat generating component of the first embodiment of the present invention.

As shown in FIG. 5, the atomizer further includes an upper cover assembly 20, a housing 30, a vent tube 40, and a base assembly 50. The upper cover assembly 20 and the base assembly 50 are respectively disposed at opposite ends of the housing 30. The vent tube 40 is disposed in the housing 30, and the heat generating assembly is mounted on the base assembly 50 and received in the housing 30. The housing 30 is provided with a liquid storage chamber 31 for storing the liquid smoke, and the liquid absorption element is for adsorbing the liquid smoke in the liquid storage chamber 31, and the heating wire is used for heating the liquid smoke adsorbed by the liquid absorption element under electric driving to form The smoke and the smoke sequentially flow out through the snorkel 40 and the upper cover assembly 20 for the user to suck.

The casing 30 has a hollow structure through which both ends penetrate, and the inner cavity of the casing 30 constitutes a liquid storage chamber 31.

The upper cover assembly 20 includes a mouthpiece 21 and an upper cover 22. The upper cover 22 is disposed on the housing 30, and the upper cover 22 defines a through hole 221. One end of the cigarette holder 21 is inserted into the through hole 221, and the user sucks through the end of the mouthpiece 21 away from the upper cover 22. In one of the embodiments, the mouthpiece 21 is detachably coupled to the upper cover 22 to facilitate cleaning or replacement of the mouthpiece by the user. In another embodiment, the mouthpiece 21 is omitted and the user draws directly through the through hole 221.

The vent pipe 40 has a hollow structure through which both ends penetrate, and the inner cavity of the vent pipe 40 constitutes a smoke passage 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 to cooperate with the heat generating component, so that the smoke outlet passage 41 communicates with the heat generating component and the mouthpiece 21, respectively, thereby causing the heat generating component The smoke generated by the atomized smoke liquid can smoothly flow into the mouthpiece 21 through the smoke passage 41. In addition to the fact that the outlet passage 41 is located inside and outside the housing 30, it can be understood that in other embodiments not shown, the outlet passage 41 can also be opened in the wall of the housing 30, or the outlet passage 41 can also be located. Outside the housing 30, for example, a sleeve is sleeved on the housing 30, and a gap between the housing 30 and the sleeve forms a smoke passage 41, so that the smoke passage 41 can be respectively connected to the mouthpiece 21 and the heat generating component. . In order to prevent the smoke liquid from leaking through the gap between the casing 30 and the upper cover 22, the atomizer further includes a sealing member 80 that seals the upper end opening of the casing 30, the outer surface of the sealing member 80 and the liquid storage chamber The cavity wall of 31 is fitted, and the vent pipe 40 is inserted into the through hole 221 through the sealing member 80. The sealing member 80 is made of a sealing material such as rubber or silicone.

In order to facilitate the collection of smoke and to smoothly introduce the smoke into the outlet passage 41, the atomizer also includes an atomizing sleeve 60. The heat generating component is mounted on the atomizing sleeve 60, and the other end of the venting tube 40 is connected to the atomizing sleeve 60 after passing through the liquid storage chamber 31, so that the inner cavity of the atomizing sleeve 60 communicates with the smoke outlet passage 41. The heat generating component atomizes the smoke generated by the smoke liquid into the smoke passage 41 through the inner cavity of the atomizing sleeve 60. The manner in which the atomizing sleeve 60 cooperates with the heat generating component includes but is not limited to the following:

Referring to FIG. 5 , in the first matching manner, the opposite sides of the atomizing sleeve 60 are provided with a through slot 61 , and the two ends of the liquid absorbing member respectively pass through the corresponding through slots 61 and extend into the liquid storage chamber 31 to The smoke liquid in the liquid storage chamber 31 is adsorbed, and the M heating wires are wound around a portion of the liquid absorbing member located in the inner cavity of the atomizing sleeve 60. Further, the atomizer further includes a support base 70 disposed below the liquid absorbing member for supporting both ends of the liquid absorbing member. The outer surface of the support base 70 may be disposed in contact with the cavity wall of the liquid storage chamber 31 to seal the liquid storage chamber 31. The support base 70 may be made of a sealing material such as silicone or rubber. Further, in order to enable the liquid smoke to be in sufficient contact with the liquid absorbing element, a liquid flow path (not shown) may be disposed on the liquid absorbing element, and the tobacco liquid flow path penetrates the opposite direction of the liquid absorbing element along the axial direction of the liquid absorbing element. At both ends, thereby, the liquid smoke can enter the inside of the liquid absorbing element through the liquid flow path, increasing the contact area of the liquid absorbing element and the liquid smoke.

Referring to FIG. 6, in the second fitting mode, the liquid absorbing member is a hollow tubular structure through which both ends are penetrated, and the liquid absorbing member is disposed on the atomizing sleeve 60 along the axial direction of the atomizing sleeve 60, and the outer surface of the liquid absorbing member and the mist The inner surface of the sleeve 60 is attached to each other, and the liquid inlet hole 62 is disposed on the side wall of the atomizing sleeve 60, and the liquid smoke in the liquid storage chamber 31 is adsorbed by the liquid absorbing member through the liquid inlet hole 62. The M heating wires are disposed in the lumen of the liquid absorbing member.

The base assembly 50 includes an air inlet 51, a positive contact 52, a negative contact 53 and a base 54. The air inlet holes 51 are respectively connected to the outside atmosphere and the heat generating component. When the user draws, the outside air enters through the air inlet holes 51, and mixes with the smoke generated by the atomizing liquid smoke of the heat generating component, and then flows out from the smoke outlet passage 41 and the cigarette holder 21. It can be understood that, in other embodiments not shown, the air inlet hole 51 can also be disposed on the upper cover assembly 20, the housing 30 or the battery device of the electronic cigarette, as long as the air inlet hole 51 can be connected to the heat generating component. can. The positive electrode contact 52 and the negative electrode contact 53 are respectively electrically connected to the power supply pin 12 corresponding to the heat generating component. When the atomizer is connected to the battery device of the electronic cigarette, the positive electrode contact 52 and the negative electrode contact 53 are electrically connected to the battery device, so that The battery device is capable of providing electrical energy to the heat generating component.

As shown in FIG. 5, in one embodiment, the air inlet hole 51 is opened on the base 54, and the positive electrode contact 52 and the negative electrode contact 53 are disposed on the base 54. The upper end of the positive electrode contact 52 and the upper end of the negative electrode contact 53 respectively clamp the corresponding power supply pin 12 to be electrically connected to the corresponding power supply pin 12, and the lower end of the positive electrode contact 52 and the lower end of the negative electrode contact 53 penetrate through the bottom of the base 54. The end face is such that the lower end of the positive electrode contact 52 and the lower end of the negative electrode contact 53 can be electrically connected to the battery device. In order to enable electrical connection and prevent short circuit, the positive electrode contact 52, the negative electrode contact 53 are made of a conductive material, and the base 54 is made of an insulating material. It will be appreciated that in other embodiments not shown, the power supply pins 12 may also be interposed between the positive contact 52 and the base 54 and between the negative contact 52 and the base 54, respectively.

As shown in FIG. 6, in another embodiment, the atomizing sleeve 60 is mounted on the base 54, the positive electrode contact 52 is disposed in the lower end of the atomizing sleeve 60, and the air inlet hole 51 is formed in the positive electrode contact 52, and the positive electrode contact 52 An insulating member 55 is interposed between the atomizing sleeve 60 and the power supply pin 12 is interposed 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 a conductive material, the base 54 is also used as a negative electrode contact, and the atomizing sleeve 60 and the positive electrode contact 52 are also made of a conductive material. Thus, the base 54 is electrically connected to the corresponding power supply pin 12 through the atomizing sleeve 60. The positive electrode contact 52 is also electrically connected to the corresponding power supply pin 12. It will be appreciated 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 disposed within the atomization sleeve 60.

A third embodiment of the present invention provides an electronic cigarette comprising a battery device and an atomizer according to a second embodiment of the present invention, and an output voltage of the electronic cigarette output to the heat generating component is less than 3.7V, and the electronic cigarette is outputted to the heat. The output power P of the component is less than the preset power, and the preset power is a value determined according to the output voltage U of the electronic cigarette output to the heat generating component and the minimum limit value of the resistance value of the heat generating component at the output voltage U.

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). Low power consumption and enough heat to atomize the smoke liquid and achieve better atomization.

In addition, in the embodiment of the present invention, the electronic cigarette may include a rechargeable battery, and may also include a non-rechargeable battery, which is not limited in this embodiment. The type of battery in the electronic cigarette can 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 battery, etc. A rechargeable or non-rechargeable battery that provides electrical energy.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims (33)

1. A heat generating component, characterized in that the heat generating component comprises M spiral column heating wires and a liquid absorbing element, the heat generating component further comprising at least two power supply pins, each of the heating wires including a heat generating portion, and an output The output voltage to the heat generating component is U, and the output power outputted to the heat generating component is P;

   The output voltage U is less than 3.7V, and the output power P is less than the preset power. The preset power is based on the output voltage U and the resistance of the heat generating component under the output voltage U. The minimum value determined by the minimum limit, M is a positive integer.
2. The heat generating component according to claim 1, wherein an effective contact area A of said heating wire and said liquid absorbing member satisfies:

   

   Where k is the thermal conductivity of the liquid smoke, ΔT is the temperature difference before and after the heating of the liquid, and t is the heat generation time of the heat generating component.
3. The heat generating component according to claim 2, wherein the length l of the heat generating portion of the heating wire, the wire diameter d of the heat generating portion of the heating wire, and the number M of the heating wires satisfy:

   

   Where a is the effective area factor and is constant.
4. The heat generating component according to claim 2, wherein said M is an integer of 2 or more and M heating wires are connected in parallel with each other, and a wire diameter d of said heat generating portion of said heating wire and said heating wire number M Satisfy:

   

   Where a is a constant area coefficient and is constant, ρ is a resistivity of a heat generating portion of the heating wire, and R is a resistance value of the heat generating component.
5. The heat generating component according to any one of claims 1 to 4, wherein the number of the heating wires M and the wire diameter d of the heat generating portion of the heating wire satisfy the following conditions:

   0.004 ≤ M ² · d ³ ≤ 0.02.
6. The heat generating component according to claim 5, wherein the heating wire is made of iron chromium.
7. The heat generating component according to claim 1, wherein each of the heating wires is a first heating wire, and each of the first heating wires comprises one of the heat generating portions and two of the power supply pins, all One of the power supply pins of the first heating wire is electrically connected to a positive electrode, and the other of the power supply pins of the first heating wire is electrically connected to a negative electrode.
8. The heat generating component according to claim 7, wherein all of the heat generating portions of the first heating wire are coaxially disposed, and all of the first heating wires are used for a power supply pin electrically connected to the positive electrode. The power supply pins for electrically connecting the first heating wires to the negative electrodes are also located on the same side of the heat generating component.
9. The heat generating component according to claim 8, wherein each of said heat generating portions comprises at least one heat generating ring, said first heat generating wires having the same number of said heat generating rings, and all said first ones The heating coil of the heating wire has the same diameter.
10. The heat generating component according to claim 1, wherein one of the heating wires is a first heating wire, and the rest are second heating wires, and the first heating wire includes one of the heat generating portions and two The power supply pins, each of the power supply pins includes a connection end for connecting to the heat generating portion of the first heating wire, and each of the second heating wires includes only one The heat generating portion, one end of the heat generating portion of all the second heating wires is welded to a connection end of one of the power supply pins, and the other end of the heat generating portion of all the second heating wires is The other end of the power supply pin is soldered.
11. The heat generating component according to claim 10, wherein said heat generating portion of said first heating wire and said heat generating portion of all said second heating wires are coaxially disposed.
12. The heat generating component according to claim 11, wherein each of said heat generating portions includes at least one heat generating ring, a number of heat generating rings of said heat generating portion of said first heat generating wire, and all said second heat generating wires The number of heat coils in the heat generating portion is the same, and all of the heat generating rings have the same diameter.
13. The heat generating component according to claim 1, wherein said heating wire comprises at least two first heating wires and at least one second heating wire, all of said second heating wires being soldered to said corresponding said first a heating wire, each of the first heating wires includes a heat generating portion and two of the power supply pins, and one of the power supply pins of all of the first heating wires is in contact with a positive electrode. The other connection of the first heating wire is electrically connected to a negative contact.
14. An atomizer, characterized in that the atomizer comprises the heat generating component according to any one of claims 1 to 13.
15. The atomizer according to claim 14, wherein the atomizer further comprises a smoke outlet passage and a liquid storage chamber for storing the smoke liquid, wherein the liquid absorption member is configured to adsorb the liquid storage chamber The liquid smoke is used to heat the smoke liquid adsorbed by the liquid absorption element under electric driving to form smoke, and the smoke flows out through the smoke passage.
16. The atomizer according to claim 15, wherein the atomizer further comprises an atomizing sleeve, the heat generating component is mounted on the atomizing sleeve, the smoke passage and the atomizing sleeve The lumen is connected.
17. The atomizer according to claim 16, wherein the opposite sides of the atomizing sleeve are provided with a through groove, and the two ends of the liquid absorbing member respectively pass through the corresponding through grooves and extend into the same In the liquid storage chamber, the heating wire is wound around a portion of the liquid absorbing member located in the inner cavity of the atomizing sleeve.
18. The atomizer according to claim 16, wherein said liquid absorbing member is disposed in said atomizing sleeve along an axial direction of said atomizing sleeve, said outer surface of said liquid absorbing member and said mist The inner surface of the sleeve is fitted, and the heating wire is disposed in the inner cavity of the liquid absorbing member, and the atomizing sleeve is provided with a liquid inlet hole communicating with the liquid storage chamber and the liquid absorbing member.
19. An electronic cigarette, characterized in that the electronic cigarette comprises the atomizer according to any one of claims 14 to 18, and an output voltage U of the electronic cigarette output to the heat generating component is less than 3.7V. The output power P of the electronic cigarette output to the heat generating component is less than a preset power, and the preset power is an output voltage U outputted to the heat generating component according to the electronic cigarette, and the heat is generated at the output voltage U The value of the minimum limit of the resistance of the wire is determined.
20. The electronic cigarette according to claim 19, wherein a voltage interval of the output voltage of the electronic cigarette is [1V-3.7V), and a power interval of the output power of the electronic cigarette is [5W-10W).
21. The electronic cigarette according to claim 19, wherein the electronic cigarette further comprises a battery, and the battery is a rechargeable battery or a non-rechargeable battery.
22. The electronic cigarette according to claim 21, wherein when the battery is a rechargeable battery, the rechargeable battery is a lithium battery, a lead-acid battery, a nickel-hydrogen battery, an iron-nickel battery, a metal oxide battery, At least one of a zinc-silver battery, a zinc-nickel battery, and a solar battery.
23. The electronic cigarette according to claim 21, wherein when said battery is a non-rechargeable battery, said non-rechargeable battery is at least one of an alkaline dry battery and a hydrogen-oxygen fuel battery.
24. A heat generating component, comprising: M heating wires and a liquid absorbing element, wherein the M heating wires comprise at least one first heating wire and at least one second heating wire, the a heating wire includes a heating portion and two power supply pins, the second heating wire includes a heating portion, and both ends of the heat generating portion of all the second heating wires are soldered to the corresponding first heating wire On the two power supply pins, one of the power supply pins of the first heating wire is electrically connected to a positive contact, and the other of the power supply pins of all the first heating wires are The electrical connection is electrically connected to a negative electrode, and the output voltage outputted to the heat generating component is U. The output voltage U has a value less than 3.7V, and M is a positive integer.
25. The heat generating component according to claim 24, wherein all of the heat generating portions of the first heating wire and all of the heat generating portions of the second heating wire are coaxially disposed, and all of the electrodes are in contact with the positive electrode. The power supply pins of the sexual connection are all located on the same side of the heat generating component, and all the power supply pins electrically connected to the negative electrode are located on the same side of the heat generating component.
26. The heat generating component according to claim 25, wherein the first heating wire and the second heating wire are both spiral columnar heating wires, the heat generating portion of the first heating wire and the second heating wire The heat generating portions each include at least one heat generating ring.
27. The heat generating component according to claim 26, wherein the number of the heat generating rings of all of the first heating wires is the same, and the diameters of the heat generating rings of all of the first heating wires are the same.
28. The heat generating component according to claim 26, wherein the number of heat generating rings of said second heating wire soldered to said first heating wire is the same and the diameter is the same.
29. The heat generating component according to claim 24, wherein at least one of said first heating wires is soldered with zero of said second heating wires, or each of said first heating wires is soldered At least one of the second heating wires.
30. The heat generating component according to claim 24, wherein the wire diameter of the heat generating portion of the first heating wire and the wire diameter of the heat generating portion of the second heating wire are both d, and d and M satisfy the following conditions :

    0.004 ≤ M ² · d ³ ≤ 0.02.
31. An atomizer, characterized in that the atomizer comprises a positive electrode contact, a negative electrode contact and a heat generating component according to any one of claims 24 to 30.
32. The atomizer according to claim 31, wherein said atomizer further comprises a smoke outlet passage and a liquid storage chamber for storing the smoke liquid, said liquid absorption member for adsorbing said liquid storage chamber The liquid smoke is used to heat the smoke liquid adsorbed by the liquid absorption element under electric driving to form smoke, and the smoke flows out through the smoke passage.
33. An electronic cigarette, characterized in that the electronic cigarette comprises the atomizer according to claim 31 or 32, the electronic cigarette further comprising a power supply device, wherein the atomizer is electrically connected to the power supply device The power supply device is capable of outputting an output voltage U to the heat generating component.

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