Heating element, heating component and atomizing device with stable atomization

Abstract

The present invention provides a heating element, a heating component and an atomizing device with stable atomization. The heating element includes a middle portion and end portions respectively provided at both ends of the middle portion. The middle portion is connected to the end portions so that the heating element generates heat when the end portions at both ends are energized. A receiving space is provided in the heating element that passes through the end portions and the middle portion; the cross-sectional area of ​​the receiving space at the middle portion is smaller than the cross-sectional area at the end portions. The heating component includes a liquid guide and the above-mentioned heating element. The atomizing device includes a shell and the above-mentioned heating element. The shell is provided with a liquid channel and an air channel. The liquid channel leads to the liquid guide so that the liquid guide conducts the liquid to the heating element for heating and atomization. The heating element, the heating component and the atomizing device can meet the liquid supply requirements while ensuring better contact between the heating element and the liquid guide cotton, and have good heating stability.

Description

Technical Field

[0001] The present invention relates to the technical field of heating elements, and in particular to a heating element, a heating component and an atomizing device with stable atomization. Background Art

[0002] Many current heating atomizer components use liquid-conducting cotton as a liquid-conducting component, such as a liquid-conducting cotton rope. Typically, a heating wire is wrapped around the outer periphery of the liquid-conducting cotton rope. Because the liquid-conducting cotton is of uniform thickness and inserted into the inner hole of the heating element, the liquid is conducted from both ends of the liquid-conducting cotton rope to the heating element. After the heating element conducts electricity, the thermal effect of the resistance generates heat, which atomizes and evaporates the liquid.

[0003] However, the above structure may cause problems: local oil frying or core sticking of the liquid-conducting cotton, poor atomization stability, and the generation of harmful substances, which affects the consumer experience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a heating element, a heating component and an atomizing device with stable atomization in response to the above-mentioned defects in the related art.

[0005] The technical solution adopted by the present invention to solve the technical problem includes: providing a heating element, comprising a middle portion and end portions respectively provided at both ends of the middle portion, the middle portion being connected to the end portions so that the heating element generates heat when the end portions at both ends are energized, and the heating element is provided with a receiving space penetrating the end portions and the middle portion;

[0006] The sectional area of ​​the accommodation space at the middle portion is smaller than the sectional area at the end portions.

[0007] Preferably, in a first radial direction, the radial dimension of the accommodating space at the middle portion is smaller than the radial dimension at the end portion; in a second radial direction, the radial dimension of the accommodating space at the middle portion is smaller than the radial dimension at the end portion, and the first radial direction is not parallel to the second radial direction.

[0008] Preferably, in a first radial direction, the radial dimension of the accommodating space at the middle portion is smaller than the radial dimension at the end portion; in a second radial direction, the radial dimension of the accommodating space at the middle portion is greater than or equal to the radial dimension at the end portion, and the first radial direction is not parallel to the second radial direction.

[0009] Preferably, the cross-sectional area of ​​the accommodating space gradually decreases from the end portion to the middle portion.

[0010] Preferably, the cross-sectional area of ​​the accommodating space decreases in a step-like manner from the end portion to the middle portion.

[0011] Preferably, the heating element is spiral-shaped.

[0012] Preferably, the heating element is formed by winding a heating wire.

[0013] Preferably, the heating element is tubular, and the middle portion is provided with a hollow structure penetrating into the accommodation space.

[0014] The technical solution adopted by the present invention to solve its technical problem includes: providing a heating component, including a liquid guide and the above-mentioned heating element, the liquid guide is arranged in the accommodating space and contacts the inner side of the heating element.

[0015] The technical solution adopted by the present invention to solve its technical problems includes: providing an atomization device, including a shell and the above-mentioned heating component, the shell is provided with a liquid channel and an air channel, the liquid channel leads to the liquid guide so that the liquid guide can conduct the liquid to the heating element for heating and atomization.

[0016] The implementation of the technical solution of the present invention has at least the following beneficial effects: the heating element, heating component and atomizing device can meet the liquid supply requirements while ensuring better contact between the heating element and the liquid-conducting cotton and good heating stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 It is a three-dimensional diagram of a heating element according to a first embodiment of the present invention.

[0019] Figure 2 is a perspective view of a heating component according to a first embodiment of the present invention, comprising a liquid guide and Figure 1 heating element.

[0020] Figure 3 yes Figure 2 Orthographic view of the heat-generating component.

[0021] Figure 4 yes Figure 2 Exploded view of the heat-generating component.

[0022] Figure 5 yes Figure 2 Cross-sectional view of the heating component.

[0023] Figure 6 It is a cross-sectional view of a heating component according to a second embodiment of the present invention, which includes a liquid conductor and a heating element.

[0024] Figure 7It is a cross-sectional view of a heating component according to a third embodiment of the present invention, including a liquid-conducting liquid and a heating element, wherein the shaded portion represents a projection of the middle portion of the heating element.

[0025] Figure 8 yes Figure 7 Flowchart of a method for manufacturing a heating component, wherein the shaded portion represents the projection of the middle portion of the heating element.

[0026] Figure 9 It is a three-dimensional diagram of a heating element according to a fourth embodiment of the present invention.

[0027] Figure 10 is a perspective view of a heating component according to a fourth embodiment of the present invention, comprising a liquid guide and Figure 9 heating element.

[0028] Figure 11 yes Figure 10 Exploded view of the heat-generating component.

[0029] Figure 12 yes Figure 10 Flowchart of a method for manufacturing a heating component.

[0030] Figure 13 It is a three-dimensional diagram of a heating element according to a fifth embodiment of the present invention.

[0031] Figure 14 is a perspective view of a heating component according to a fifth embodiment of the present invention, comprising a liquid guide and Figure 13 heating element.

[0032] Figure 15 yes Figure 14 Exploded view of the heat-generating component.

[0033] Figure 16 yes Figure 14 Flowchart of a method for manufacturing a heating component.

[0034] Figure 17 It is a three-dimensional diagram of a heating element according to a sixth embodiment of the present invention.

[0035] Figure 18 is a perspective view of a heating component according to a sixth embodiment of the present invention, comprising a liquid guide and Figure 17 heating element.

[0036] Figure 19 yes Figure 18 Exploded view of the heat-generating component.

[0037] Figure 20 yes Figure 18 Cross-sectional view of the heating component.

[0038] Figure 21 yes Figure 18 A cross-sectional view of the heating component in another direction.

[0039] Figure 22 yes Figure 18 A cross-sectional view of the heating component in another direction.

[0040] Figure 23 yes Figure 18 Flowchart of a method for manufacturing a heating component.

[0041] Figure 24 It is an exploded view of an atomizing device according to an embodiment of the present invention.

[0042] Figure 25 yes Figure 24 Cross-sectional view of an atomizing device (arrows indicate the direction of liquid flow).

[0043] Figure 26 yes Figure 24 Another cross-sectional view of the atomizing device (the arrow indicates the flow direction of the atomizing gas).

[0044] The numbers in the figure indicate: heating element 1, middle part 11, hollow structure 111, annular part 112, connecting part 113, end part 12, accommodating space 13, first radial direction 1a, second radial direction 1b, liquid guiding liquid 2, shell 3, liquid storage tank 31, liquid channel 32, air channel 33, shaping tool 4. DETAILED DESCRIPTION

[0045] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. It should be understood that if the "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail" and other indications of orientation or positional relationship appear in the text, they are based on the orientation or positional relationship shown in the drawings, constructed and operated in a specific orientation, and are only for the convenience of describing the present technical solution, and do not indicate that the device or element referred to must have a specific orientation, and therefore should not be understood as limiting the present invention. It should also be noted that unless otherwise expressly specified and limited, if the terms "installed", "connected", "connected", "fixed", "set" and the like appear in the text, they should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium, and can be internal communication between two elements or an interactive relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or one or more intervening elements may be present. If the terms "first," "second," "third," etc. appear in this document, they are merely for the purpose of describing the technical solution and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of such features. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0047] Research has found that the main reasons leading to the problems in the background technology are:

[0048] 1. When the liquid-guiding cotton rope is passed through the inner hole of the heating element, since the inner diameter of the middle section of the heating element is the same as that of the two ends, the thickness of the liquid-guiding cotton rope is also consistent. When the liquid-guiding cotton is passed through the inner hole too tightly, the inner wall of the heating element at both ends limits the gap of the liquid-guiding cotton, resulting in a slowdown in the liquid supply of the heating element in the middle section. Due to the principles of heat conduction and heat radiation, the temperature of the heating element in the middle section is higher than that at the two ends. Therefore, it is easy to cause insufficient liquid supply in the middle section, resulting in excessively high atomization temperature, resulting in core sticking and the production of harmful substances.

[0049] 2. When the liquid-conducting cotton string is loosely threaded through the inner hole of the heater, it is relatively fluffy and has good liquid-conducting performance, ensuring sufficient liquid supply to the middle section. However, since liquid-conducting cotton is made of soft materials and has an irregular shape, when the liquid-conducting cotton string and the heater are loosely fitted, there may be areas where the heater and the string are out of contact, resulting in oil frying and burnt cores during use, affecting the consumer experience.

[0050] In order to solve the above problems, the present invention provides a heating element, a heating component and an atomizing device with stable atomization.

[0051] See also Figure 1-23 In some embodiments of the present invention, the heating element 1 includes a middle portion 11 and end portions 12 provided at both ends of the middle portion 11. The middle portion 11 is connected to the end portions 12 so that when the end portions 12 at both ends are energized, the heating element 1 generates heat due to the thermal effect of the resistor. The heating element 1 is provided with a receiving space 13 for receiving the liquid conductor 2, which passes through the end portions 12 and the middle portion 11.

[0052] The cross-sectional area of ​​the accommodation space 13 at the middle portion 11 is smaller than that at the end portion 12 .

[0053] The accommodating space 13 of the heating element 1 has a large cross-sectional area at the end portion 12 and a small cross-sectional area at the middle portion 11 (so that the spaces at both ends of the accommodating space 13 of the heating element 1 are larger and the space in the middle is smaller). Since the guide liquid 2 is usually uniform in thickness, the guide liquid 2 is inserted into the accommodating space 13 of the heating element 1. The heating element 1 and the guide liquid 2 fit together loosely at the two ends and tightly in the middle. This can ensure better contact between the heating element 1 and the guide liquid cotton while meeting the liquid supply requirements, and improve heating stability. The heating element 1 can be used in an atomizing device.

[0054] In some embodiments, see Figure 1-5 and 9-16, in the first radial direction 1a, the radial dimension of the accommodating space 13 at the middle portion 11 is smaller than the radial dimension at the end portion 12; in the second radial direction 1b, the radial dimension of the accommodating space 13 at the middle portion 11 may be smaller than the radial dimension at the end portion 12, and the first radial direction 1a is not parallel to the second radial direction 1b.

[0055] In other embodiments, see Figure 7-8 and 17-23, in the first radial direction 1a, the radial dimension of the accommodating space 13 at the middle portion 11 is smaller than the radial dimension at the end portion 12; in the second radial direction 1b, the radial dimension of the accommodating space 13 at the middle portion 11 may also be greater than or equal to the radial dimension at the end portion 12, and the first radial direction 1a is not parallel to the second radial direction 1b.

[0056] The cross-sectional area is the area of ​​the cross section perpendicular to the through direction of the accommodating space, and the radial direction is perpendicular to the through direction of the accommodating space.

[0057] Preferably, the first radial direction 1 a and the second radial direction 1 b are perpendicular to the through direction of the accommodating space 13 , and the first radial direction 1 a is perpendicular to the second radial direction 1 b .

[0058] Figure 1-23 Shows different structures of the heating element 1, which can have a spiral structure (see Figure 1-8 ), can also have a tubular structure (see Figure 9-23 ).

[0059] See also Figure 1-5 , the heating element 1 is spiral. The heating element 1 can be formed by winding a heating wire. In some embodiments, see Figure 1-5 When the heating element 1 adopts a filamentary spiral structure, the heating wire can be wound into a spiral with a small inner diameter in the middle part and a large inner diameter at both ends, and then the liquid guide 2 is inserted into the accommodating space 13 of the heating element 1 to form a structure in which the heating element 1 is wrapped around the outside of the liquid guide 2.

[0060] In other embodiments, see Figure 7-8 This structure can be formed by using a normal cylindrical spiral heating element and extruding and shaping the middle portion 11 of the heating element 1 by a shaping tool 4, so as to achieve good contact between the heating element 1 and the liquid guide 2. This is simple and convenient to implement, has controllable dimensions, and can be mass-produced automatically.

[0061] See also Figure 9-12 The heating element 1 is tubular, and a hollow structure 111 is provided on the middle portion 11, which penetrates from the outside to the accommodation space 13. The middle portion 11 may include an annular portion 112 and a connecting portion 113. There are at least two annular portions 112, which are spaced apart in the direction through which the accommodation space 13 passes. Adjacent two annular portions 112 are connected by the connecting portion 113, and the adjacent two connecting portions 113 are staggered in the circumferential direction.

[0062] In some embodiments, see Figure 12 Alternatively, a tubular metal with a thin middle portion 11 and a thick end portion 12 can be obtained by stretching, and then the tubular heating element 1 with a hollow structure 111 can be obtained by etching, cutting, stamping, etc.

[0063] In other embodiments, see Figure 17-23The heating element 1 is a tubular heating element. After the production is completed, the liquid guide 2 is inserted into the accommodating space 13 of the tubular heating element. Then, the circular heating portion of the tubular heating element is pressed into a runway shape, an ellipse, a square, or the like by a shaping jig. According to the situation where the circumference is certain, the area of ​​the circle is the largest. The middle part 11 of the heating zone of the heating element 1 can be shaped into a runway shape, an ellipse, a square, or the like. In this way, the cross-sectional area of ​​the inner diameter of the middle heating zone of the heating element 1 is smaller than the cross-sectional area of ​​the inner diameter of the end part 12. When combined with the liquid guide 2, the cotton in the middle part 11 will be tighter, and the end part 12 will be looser, so that the end part 12 can be loose and the liquid can enter quickly, and the middle part can be tightly contacted for good results.

[0064] In the above embodiment, see Figure 1-5 As shown in 13-16, the transition portion from the end portion 12 to the middle portion 11 is inclined, and the cross-sectional area of ​​the accommodating space 13 can be gradually reduced from the end portion 12 to the middle portion 11.

[0065] In addition, in the above embodiment, see Figure 6 and 9 -12, the cross-sectional area of ​​the accommodating space 13 may also be gradually reduced from the end portion 12 to the middle portion 11 in a step-like transition.

[0066] The heating component of the present invention comprises a liquid-conducting body 2 and the heating element 1 described above. Figure 1-23 The structure of the combination of the heating element 1 and the liquid guide in the above various embodiments is shown. The liquid guide 2 is arranged in the accommodating space 13 of the heating element 1 and contacts the inner side of the heating element 1.

[0067] When the heating component is used for atomization, the liquid guide 2 contacts the liquid and conducts the liquid to the heating element 1 for heating and atomization.

[0068] The liquid guide 2 can use liquid guide cotton, such as a liquid guide cotton rope. The heating component adopts the above-mentioned heating element 1, and the cross-sectional area of ​​the end portion 12 of the heating element 1 is large, and the cross-sectional area of ​​the middle portion 11 is small (so that the space at both ends of the accommodating space 13 of the heating element 1 is larger, and the middle space is smaller). Usually, the thickness of the liquid guide 2 is uniform. In this way, the liquid guide 2 is inserted into the accommodating space 13 of the heating element 1. The heating element 1 and the liquid guide 2 are loosely matched at the two ends and tighter in the middle. This can meet the liquid supply requirements while ensuring better contact between the heating element 1 and the liquid guide cotton, and good heating stability.

[0069] See also Figures 24-26The atomizing device of one embodiment of the present invention includes a shell 3 and the above-mentioned heating component. A liquid storage tank 31 is provided in the shell 3. A liquid channel 32 and an air channel 33 are provided on the shell 3. The liquid channel 32 is connected to the liquid storage tank 31 and leads to the guide liquid 2, so that the guide liquid 2 can conduct the liquid to the heating element 1 for heating and atomization. The atomizing device adopts the above-mentioned heating component. The heating element 1 has a large cross-sectional area at the end portion 12 and a small cross-sectional area at the middle portion 11 (so that the space at both ends of the storage space of the heating element is larger and the space in the middle is smaller). Usually, the thickness of the guide liquid 2 is uniform. In this way, the guide liquid 2 is passed through the storage space 13 of the heating element 1, and heat is generated at both ends.

[0070] The body 1 and the liquid guide 2 fit together loosely, but are tighter in the middle. This ensures that the heating element 1 and the liquid guide cotton have better contact while meeting the liquid supply requirements, resulting in good heating stability. The atomization device can be used in electronic cigarettes. The liquid storage tank 31 is used to store smoke liquid. The smoke liquid contacts the liquid guide 2 through the liquid channel 32 and is then conducted to the heating element 1 through the liquid guide 2 for heating and atomization.

[0071] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications, combinations, and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.

Claims

1. A heating component, characterized in that: The invention comprises a liquid-conducting body (2) and a heating element (1), wherein the liquid-conducting body (2) is made of a soft material, and the heating element (1) comprises a middle portion (11) and end portions (12) respectively provided at both ends of the middle portion (11), wherein the middle portion (11) is connected to the end portions (12) so that the heating element (1) generates heat when the end portions (12) at both ends are energized, and an accommodating space (13) is provided in the heating element (1) that passes through the end portions (12) and the middle portion (11); The heating element (1) is tubular, and the middle portion (11) is provided with a hollow structure (111) penetrating into the accommodation space (13); In a first radial direction (1a), a radial dimension of the accommodating space (13) at the middle portion (11) is smaller than a radial dimension at the end portion (12); In the second radial direction (1b), the radial dimension of the accommodating space (13) at the middle portion (11) is smaller than or larger than the radial dimension at the end portion (12), the first radial direction (1a) is not parallel to the second radial direction (1b), the first radial direction (1a) and the second radial direction (1b) are perpendicular to the through direction of the accommodating space (13), and the first radial direction (1a) is perpendicular to the second radial direction (1b); The cross-sectional area of ​​the accommodating space (13) at the middle portion (11) is smaller than the cross-sectional area at the end portion (12); the liquid guide (2) is arranged in the accommodating space (13) and contacts the inner side of the heating element (1); the middle portion (11) of the heating element (1) and the liquid guide (2) fit tightly, and the end portion (12) of the heating element (1) and the liquid guide (2) fit loosely.

2. The heating component according to claim 1, characterized in that The cross-sectional area of ​​the accommodating space (13) gradually decreases from the end portion (12) to the middle portion (11).

3. The heating component according to claim 1, characterized in that The cross-sectional area of ​​the accommodating space (13) decreases in a step-like manner from the end portion (12) to the middle portion (11).

4. The heating component according to claim 1, characterized in that The middle portion (11) may include an annular portion (112) and a connecting portion (113), wherein there are at least two annular portions (112), the annular portions (112) are spaced apart in the through-going direction of the accommodating space (13), two adjacent annular portions (112) are connected via the connecting portion (113), and the two adjacent connecting portions (113) are staggered in the circumferential direction.

5. An atomizing device, characterized in that: The invention comprises a shell (3) and a heating component according to any one of claims 1 to 4, wherein the shell (3) is provided with a liquid channel (32) and an air channel (33), and the liquid channel (32) leads to the liquid guide (2) so that the liquid guide (2) can conduct the liquid to the heating element (1) for heating and atomization.

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