Heating wire, ceramic atomization core and heating atomization device

Abstract

The utility model relates to a heating wire, a ceramic atomization core and a heating atomization device. A heating wire comprises a first pin, a second pin and a third pin. The upper end of the first pin is connected with a first conducting strip, the upper end of the second pin is connected with a second conducting strip, and the upper end of the third pin is connected with a third conducting strip; the first conducting strips and the third conducting strips are arranged at intervals; the second conducting strip is located above or below the first conducting strip, the second conducting strip comprises a main connecting part and an auxiliary connecting part, N electric heating wires are connected between the main connecting part and the first conducting strip, and M electric heating wires and Nlt are connected between the auxiliary connecting part and the second conducting strip; m, N and M are all natural numbers. The N electric heating wires and the M electric heating wires are arranged between the second conducting strip and the first conducting strip and between the second conducting strip and the third conducting strip respectively, so that the heating wires have three kinds of heating power selectable during working, and one more choice is provided compared with the prior art.

Description

Technical Field

[0001] This application belongs to the technical field of heating atomization devices. More specifically, it relates to a heating wire, a ceramic atomization core, and a heating atomization device. Background Art

[0002] Currently, ceramic atomization cores are widely used in heating atomization devices. Heating atomization devices include electronic cigarettes, humidifiers, aromatherapy machines, etc. When the ceramic atomization core is in use, a part of the liquid in the heating atomization device seeps into the interior of the ceramic atomization core. The ceramic atomization core is powered on, the heating wire generates heat and emits a large amount of heat. The liquid around the heating wire quickly vaporizes, diffuses outward, and then contacts the low-temperature liquid outside, spraying to form an atomization effect.

[0003] Currently, the heating wires of most ceramic atomization cores are only provided with one section and are led out through two pins. Such a ceramic atomization core has only one working heating power and a single atomization effect. When there are diverse requirements for the atomization effect, it is necessary to make the heating power adjustable and the atomization effect variable. There are also cases where the heating wire is set to two identical sections and led out through 3 pins. By selecting different pins, the heating power can be made diverse and it is convenient to select. Even so, there are only 2 selectable heating powers, and the selectable range is small. Summary of the Invention

[0004] The purpose of the embodiment of this application is to provide a heating wire to solve the technical problem of the small selectivity of heating power in the prior art.

[0005] The second purpose of the embodiment of this application is to provide a ceramic atomization core that has the above-mentioned heating wire.

[0006] The third purpose of the embodiment of this application is to provide a heating atomization device that has the above-mentioned ceramic atomization core.

[0007] To achieve the above purpose, the technical solution adopted in this application is: to provide a heating wire, which includes 3 pins, namely: the first pin, the second pin, and the third pin; a first conductive sheet is connected to the upper end of the first pin, a second conductive sheet is connected to the upper end of the second pin, and a third conductive sheet is connected to the upper end of the third pin; the first conductive sheet and the third conductive sheet are arranged at intervals; the second conductive sheet is located above or below the first conductive sheet. The second conductive sheet includes a main connection part arranged opposite to the first conductive sheet and a sub-connection part arranged opposite to the second conductive sheet. There are N heating wires connected between the main connection part and the first conductive sheet, and M heating wires connected between the sub-connection part and the second conductive sheet. N < M, and both N and M are natural numbers.

[0008] Further, the heating wire is arranged in a wavy shape.

[0009] Preferably, the heating wire is arranged in a rectangular wave or sawtooth shape.

[0010] Furthermore, the heating wire comprises a transverse section and a vertical section; the transverse section and the vertical section are arranged alternately; the transverse section and the vertical section are integrally formed or spot-welded.

[0011] Furthermore, the side surface of the vertical section is connected with an extension portion.

[0012] Preferably, the extension portion comprises a transverse heat transfer section, one end of which is connected to the vertical section, and an upper vertical heat transfer section and a lower vertical heat transfer section are respectively extended outward on upper and lower sides of the transverse heat transfer section.

[0013] Furthermore, two adjacent heating wires among the heating wires between the secondary connecting portion and the second conductive sheet are symmetrically arranged.

[0014] A ceramic atomizer core comprises a ceramic shell and the above-mentioned heating wire, the ceramic shell is ring-shaped, the heating wire is arranged on the inner side of the ceramic shell in an arc shape, a first pin, a second pin and a third pin all extend out of the ceramic shell, and the ceramic shell is provided with a plurality of micropores.

[0015] Furthermore, an elastic ring with an open-loop structure is provided in the ceramic shell. The elastic ring is sleeved on the upper end of the center hole of the ceramic shell, and the elastic ring abuts against the upper ends of the three pins and presses the upper ends of the three pins against the inner side of the ceramic shell.

[0016] A heating atomization device comprises the above-mentioned ceramic atomization core and a power supply circuit for supplying power to the ceramic atomization core, wherein the power supply circuit is provided with a selection switch, and the selection switch is electrically connected to three pins of the ceramic atomization core; when working, any two of the three pins can be electrically connected to the selection switch to form a loop.

[0017] The beneficial effect of the heating wire provided in the present application is that by arranging N heating wires between the first conductive sheet and the second conductive sheet, and M heating wires between the second conductive sheet and the third conductive sheet, the heating wire has three optional heating powers when working, which is one more option compared to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of the structure of a heating wire in an expanded state provided in an embodiment of the present application.

[0020] Figure 2 This is a schematic diagram of the second heating wire structure in the expanded state provided in an embodiment of the present application.

[0021] Figure 3 This is a schematic diagram of the structure of the third heating wire in the expanded state provided in an embodiment of the present application.

[0022] Figure 4 This is a schematic diagram of a partial perspective structure of the ceramic atomization core provided in an embodiment of the present application.

[0023] Figure 5 This is a schematic diagram of the top view of the ceramic atomizer core provided in an embodiment of the present application.

[0024] Figure 6 This is a schematic diagram of the structure of the ceramic atomizer core provided in an embodiment of the present application.

[0025] Figure 7 A schematic diagram of the structure of a selection switch provided in an embodiment of the present application.

[0026] Among them, the reference numerals in the figure are:

[0027] 1——first conductive sheet; 2——second conductive sheet; 3——third conductive sheet; 4——heating wire; 5——extension portion; 6——third pin; 7——second pin; 8——first pin; 9——ceramic shell; 10——elastic ring; 11——middle insulator; 12——conductive rod; 13——power supply terminal; 21——main connection portion; 22——secondary connection portion; 51——upper vertical heat transfer section; 52——lower vertical heat transfer section; 53——lateral heat transfer section. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] Please refer to Figure 1 and Figure 2 、 Figure 3 . Now, a heating wire provided by an embodiment of the present application is described. It includes three pins, namely: a first pin 8, a second pin 7, and a third pin 6. A first conductive sheet 1 is connected to the upper end of the first pin 8, a second conductive sheet 2 is connected to the upper end of the second pin 7, and a third conductive sheet 3 is connected to the upper end of the third pin 6. The first conductive sheet 1 and the third conductive sheet 3 are arranged at intervals. The second conductive sheet 2 is located above or below the first conductive sheet 1. The second conductive sheet 2 includes a main connection portion 21 disposed opposite to the first conductive sheet 1 and a sub-connection portion 22 disposed opposite to the second conductive sheet 2. N heating wires 4 are connected between the main connection portion 21 and the first conductive sheet 1, and M heating wires 4 are connected between the sub-connection portion 22 and the second conductive sheet 2. N < M, and both N and M are natural numbers.

[0033] See Figure 1 、 Figure 2 and Figure 3 ; The heating wire 4 is used for generating heat after being powered on and generating heat outward. The three pins are used for selective connection. In this embodiment, the second conductive sheet 2 is connected to the first conductive sheet 1 and the third conductive sheet 3 through different combinations of heating wires 4 by the main connection portion 21 and the sub-connection portion 22 on both sides respectively. When the second conductive sheet 2 is specifically arranged, it can be selected according to the actual situation. As Figure 1 shown, the second conductive sheet 2 is located below the first conductive sheet 1 and the third conductive sheet 3. As Figure 3As shown, the second conductive sheet 2 is located above the first conductive sheet 1 and the third conductive sheet 3; when the second conductive sheet 2 is arranged above the first conductive sheet 1 and the third conductive sheet 3, the second pin 7 needs to pass through the gap between the first conductive sheet 1 and the second conductive sheet 2, and considering that the gap is relatively small, in order to avoid a short circuit, the second conductive sheet 2 is preferably arranged below the first conductive sheet 1 and the third conductive sheet 3.

[0034] Secondly, N or M is generally selected as 1, 2, or 3 in practical applications; N and M have different values; this can avoid the resistance value between the first pin 8 and the second pin 7 being the same as the resistance value between the second pin 7 and the third pin 6, and more power options are available. For example: when the first pin 8 and the second pin 7 are selected, the heating wire works after power is turned on, and only N heating wires 4 work; when the second pin 7 and the third pin 6 are selected, the heating wire works after power is turned on, and only M heating wires 4 work; when the first pin 8 and the third pin 6 are selected, the heating wire works after power is turned on, and only M+N heating wires 4 work; it can be seen that there are 3 heating powers to choose from. The 3 different heating powers can correspond to 3 atomization levels, which correspond to 3 different atomization effects; it is relatively convenient to use.

[0035] When the heating wires 4 are arranged, the heating wires 4 between the secondary connection part 22 and the third conductive sheet 3 are connected in parallel. Preferably, when N is greater than 1, the heating wires 4 between the main connection part 21 and the first conductive sheet 1 are also connected in parallel.

[0036] The parallel connection structure can effectively reduce the distance between the secondary connection part 22 and the third conductive sheet 3, and at the same time increase the length of the third conductive sheet 3 and the secondary connection part 22; when applied to the ceramic atomizer core, the heating wire is arranged inside in an arc shape, which can effectively utilize the inner surface of the ceramic atomizer core.

[0037] Secondly, in this embodiment, N=1, M=2, that is, only one heating wire 4 is arranged between the main connection part 21 and the first conductive sheet 1; and two heating wires 4 are arranged in parallel between the auxiliary connection part 22 and the second conductive sheet 2. Of course, N can be equal to 2 or 3, and M=3 or 4; that is, 2 or 3 heating wires 4 are arranged in parallel between the main connection part 21 and the first conductive sheet 1, and 3 or 4 heating wires 4 are arranged in parallel between the auxiliary connection part 22 and the third conductive sheet 3.

[0038] Preferably, in order to increase the length of the heating wire 4, the heating wire 4 is arranged in a wave shape.

[0039] like Figure 1 As shown, the heating wire 4 is arranged between the first conductive sheet 1 and the second conductive sheet 2; or between the second conductive sheet 2 and the third conductive sheet 3; the heating wire 4 is mainly a resistance wire, and the heating power of the resistance wire is: P = I 2*R, I represents the working current of the resistance wire, R represents the resistance value of the resistance wire; at the same time, the resistance value of the heating wire R=L*R ⊿ ; L represents the length of the resistance wire, R ⊿ Indicates the resistance value of the resistance wire per unit length; from this we can know: P = I 2 *L*R ⊿ ; In the working current I, unit resistance R ⊿ If you want to increase the heating power of the resistance wire while keeping the value unchanged, you need to increase the length of the resistance wire.

[0040] Secondly, the vertical spacing between the first conductive sheet 1 and the second conductive sheet 2 and the vertical spacing between the second conductive sheet 2 and the third conductive sheet 3 will not be too large. In order to make the resistance wire have a longer length, the embodiment of the present application adopts a wavy shape of the heating wire 4 to make full use of the space between the first conductive sheet 1 and the second conductive sheet 2 or the space between the second conductive sheet 2 and the third conductive sheet 3, thereby effectively increasing the length and resistance of the resistance wire.

[0041] Furthermore, on the basis of the wave shape, the heating wire 4 is arranged in a rectangular wave or sawtooth shape. In this way, the space between the first conductive sheet 1 and the second conductive sheet 2 and the space between the second conductive sheet 2 and the third conductive sheet 3 can be more effectively utilized; the heating wire 4 is arranged in a rectangular wave structure or a sawtooth structure, and these structures occupy a relatively high space; secondly, considering the manufacturing process, for the convenience of manufacturing, the heating wire 4 is preferably arranged in a rectangular wave.

[0042] like Figure 1 , Figure 2 As shown, the heating wire 4 includes transverse sections and vertical sections that are staggered; the upper and lower ends of the heating wire 4 are vertical sections for connecting to the first conductive sheet 1, the second conductive sheet 2 or the third conductive sheet 3; the transverse section and the vertical section are integrally formed or spot welded.

[0043] When manufacturing the heating wire 4, it is preferred to adopt integrated molding, and the heating wire 4 is integrally molded with the first conductive sheet 1, the second conductive sheet 2, and the third conductive sheet 3. Integral molding can ensure the integrity and quality of the heating wire; and molds are generally used during manufacturing, and the manufacturing cost is relatively low.

[0044] See also Figure 1 , wherein the side of the vertical section is connected with an extension portion 5.

[0045] When the ceramic atomizer core is in use, it is necessary to vaporize the liquid around the electric heating wire 4. If only the main heating part of the electric heating wire 4, that is, the horizontal section and the vertical section, is used, the heating volume will be limited, and the vaporized liquid will also be relatively limited; therefore, it is necessary to expand the heating volume of the electric heating wire 4 to increase the amount of vaporized liquid. In the embodiment of the present application, the extension 5 is connected to the side of the vertical section, specifically: the outer surface of the vertical section extends outward to form the extension 5. When working, the main part of the electric heating wire 4: the vertical section and the horizontal section generate heat and form a heating part when current flows through; the heat emitted diffuses to the extension 5, and the heat is dissipated outward through the extension 5, and the liquid around the extension 5 and the heating part is quickly heated to vaporization. The surface area of ​​the extension 5 and the heating part as a whole is relatively increased.

[0046] Among them, see Figure 1 The extension portion 5 includes a transverse heat transfer section 53, one end of which is connected to the vertical section, and an upper vertical heat transfer section 51 and a lower vertical heat transfer section 52 are respectively extended outward from the upper and lower sides of the transverse heat transfer section 53.

[0047] In this embodiment, the transverse heat transfer section 53 is combined with the upper vertical heat transfer section 51 and the lower vertical heat transfer section 52 to form a cross heat transfer plate. In specific design, multiple upper vertical heat transfer sections 51 and lower vertical heat transfer sections 52 can be provided. Preferably, they can be staggered so that more upper vertical heat transfer sections 51 and lower vertical heat transfer sections 52 can be provided. When in use, the contact area with the liquid will be larger, and the amount of vaporized liquid will also increase.

[0048] Preferably, two adjacent heating wires between the secondary connection portion and the second conductive sheet are symmetrically arranged; in the specific arrangement, when the two symmetrically arranged heating wires 4 are powered on for heating, the heat emitted between the two adjacent heating wires 4 is basically symmetrical, so that there is basically no heat flow between the two heating wires 4, and the heat emitted by the heating wires 4 is basically all used to atomize the liquid, thereby maximizing the atomization amount of the liquid. Secondly, due to the symmetrical arrangement, the transverse heat transfer sections 53 on the two adjacent heating wires 4 can be connected as a whole, see Figure 1 and Figure 2 , which is beneficial to improve the overall strength.

[0049] In this embodiment, two heating wires 4 are provided between the second conductive sheet 2 and the third conductive sheet 3, and the two heating wires 4 are symmetrically arranged; preferably, the heating wire 4 between the first conductive sheet 1 and the second conductive sheet 2 is the first heating wire 4, and the two heating wires 4 between the second conductive sheet 2 and the third conductive sheet 3 are the second heating wire 4 and the third heating wire 4, respectively, the second heating wire 4 is located between the first heating wire 4 and the third heating wire 4, and the second heating wire 4 and the first heating wire 4 are also symmetrically distributed.

[0050] Example 2: See Figures 5 and 6 A ceramic atomization core comprises a ceramic shell 9 and the above-mentioned heating wire, the ceramic shell 9 is ring-shaped, the heating wire is arranged on the inner side of the ceramic shell 9 in an arc shape, the first pin 8, the second pin 7 and the third pin 6 all extend out of the ceramic shell 9, and the ceramic shell 9 is provided with a plurality of micropores (not shown in the figure).

[0051] When the ceramic atomizer core is used, the ceramic atomizer core is fixed in the heating atomizer device, the first pin 8, the second pin 7 and the third pin 6 are connected to the three power contact ends respectively, the ceramic shell 9 is immersed in the liquid, and the liquid molecules penetrate into the interior of the ceramic shell 9; when heating and atomization are required, two of the power contact ends can be selected to be energized to form a loop. For example: 1. When the first pin 8 and the second pin 7 have current flowing through, only the heating wire 4 between the first conductive sheet 1 and the second conductive sheet 2 works, and the heating power of the heating wire is P1; 2. When the second pin 7 and the third pin 6 have current flowing through, only the heating wire 4 between the second conductive sheet 2 and the third conductive sheet 3 works, and the heating power of the heating wire is P2; 3. When the first pin 8 and the third pin 6 have current flowing through, all the heating wires 4 work, and the heating power is P3; the power P1, P2, and P3 have different numbers, so there will be 3 levels of heating power to choose from.

[0052] See also Figure 4 An elastic ring 10 with an open-loop structure is provided in the ceramic shell 9. The elastic ring 10 is sleeved on the upper end of the center hole of the ceramic shell 9, and the elastic ring 10 abuts against the upper ends of the three pins and presses the upper ends of the three pins against the inner side surface of the ceramic shell 9.

[0053] At present, when the heating wire is fixed inside the ceramic shell 9, the connection force between the heating wire and the inner side of the ceramic shell 9 is weak, especially in the working state. The heating wire is heated, so that the heating wire and the ceramic shell 9 both reach high temperature. The materials of the two are different, and the thermal expansion coefficients are also different, which will cause relative movement between the two. In order to prevent the heating wire from moving too much relative to the ceramic shell 9 and causing looseness, the embodiment of the technical solution adopts an elastic ring 10, and the diameter of the elastic ring 10 is larger than or slightly larger than the center hole inside the ceramic shell 9; the elastic ring 10 is slightly retracted to reduce the diameter, and is clamped in the center hole, and the upper ends of the three pins are pressed against the inner side of the ceramic shell 9 while clamping.

[0054] Embodiment 3: A heating atomization device, comprising the above-mentioned ceramic atomization core and a power supply circuit for supplying power to the ceramic atomization core, wherein the power supply circuit is provided with a selection switch, see Figure 7 , the selection switch is electrically connected to the three pins of the ceramic atomizer core; when working, any two of the three pins can be electrically connected to the selection switch to form a loop.

[0055] The heating atomization device can be an object with an atomization structure such as an electronic cigarette, a humidifier, an atomizer, an aromatherapy machine, etc. When in use, the power circuit supplies power to the ceramic atomization core, and any two of the three pins of the ceramic atomization core are electrically connected to the selection switch; when working, different two pins are connected, corresponding to heating wires with different structures connected in the circuit, that is, the working power is also different; from the above description of the heating wire, it can be seen that when the first pin 8 and the second pin 7 are connected to the selection switch, N heating wires 4 are working; when the second pin 7 and the third pin 6 are connected to the selection switch, M heating wires 4 are working; when the first pin 8 and the third pin 6 are connected to the selection switch, M+N heating wires 4 are working. In this embodiment, N=1, M=2; of course, N and M can also select other values.

[0056] Secondly, the selection switch can be a physical switch or an intelligent switch; when it is a physical switch, it includes a movable part for selecting the gear position, and three power terminals 13 electrically connected to the first pin 8, the second pin 7, and the third pin 6 respectively. As shown in the figure, the three power terminals 13 are distributed at the ends of the equilateral triangle, and the movable part includes two conductive rods 12 arranged at an angle of 120. The inner ends of the two conductive rods 12 are arranged at intervals and connected through an intermediate insulator 11. The inner ends of the two conductive rods 12 are respectively connected to the two output ends of the power circuit, and the movable part can rotate relative to each other. During the rotation of the movable part, the two conductive rods 12 always remain connected to two of the power terminals 13, so that two pins of the first pin 8, the second pin 7, and the third pin 6 can be selected by the movable part to be connected to the circuit, thereby realizing the adjustable three gear positions.

[0057] The above structure is an example of a physical switch, and the physical switch may also be other structures, which will not be described in detail here.

[0058] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A heating wire, comprising three pins: a first pin, a second pin and a third pin; characterized in that: The upper end of the first pin is connected with a first conductive sheet, the upper end of the second pin is connected with a second conductive sheet, and the upper end of the third pin is connected with a third conductive sheet; the first conductive sheet and the third conductive sheet are arranged at intervals; the second conductive sheet is located above or below the first conductive sheet, and the second conductive sheet includes a main connection part arranged opposite to the first conductive sheet and a sub-connection part arranged opposite to the second conductive sheet. There are N heating wires connected between the main connection part and the first conductive sheet, and M heating wires connected between the sub-connection part and the second conductive sheet. N < M, and both N and M are natural numbers.

2. The heating wire according to claim 1, characterized in that: The heating wires are arranged in a wavy shape.

3. The heating wire according to claim 1, characterized in that: The heating wires are arranged in a rectangular wave or sawtooth shape.

4. The heating wire according to claim 3, characterized in that: The heating wires include horizontal segments and vertical segments; the horizontal segments and the vertical segments are arranged alternately; the horizontal segments and the vertical segments are integrally formed or spot-welded.

5. The heating wire according to claim 4, characterized in that: An extension part is connected to the side surface of the vertical segment.

6. The heating wire according to claim 5, characterized in that: The extension part includes a horizontal heat transfer segment, one end of the horizontal heat transfer segment is connected to the vertical segment, and upper and lower vertical heat transfer segments respectively extend outwards from the upper and lower sides of the horizontal heat transfer segment.

7. The heating wire according to claim 1, characterized in that: Among the heating wires between the sub-connection part and the second conductive sheet, two adjacent heating wires are symmetrically arranged.

8. A ceramic atomizing core, characterized in that: It includes a ceramic shell and the heating wire according to any one of claims 1 to 7. The ceramic shell is annular, the heating wire is arranged in an arc shape on the inner side surface of the ceramic shell, and the first pin, the second pin and the third pin all extend out of the ceramic shell. The ceramic shell is provided with a plurality of micropores.

9. The ceramic atomizer core according to claim 8, characterized in that: An elastic ring with an open-loop structure is arranged in the ceramic shell. The elastic ring is sleeved on the upper end of the central hole of the ceramic shell, and the elastic ring abuts against the upper ends of the three pins and presses the upper ends of the three pins against the inner side surface of the ceramic shell.

10. A heating atomization device, characterized in that: It includes the ceramic atomization core according to claim 8 or 9 and a power supply circuit for supplying power to the ceramic atomization core. The power supply circuit is provided with a selection switch, and the selection switch is electrically connected to the three pins of the ceramic atomization core.

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