Heating sheet and ceramic atomizing core
By connecting multiple bent spring terminals and rectangular waveform heating wires to both sides of the heating element, the problem of the heating element detaching from the ceramic shell is solved, achieving higher stability and service life.
Patent Information
- Application Number
- CN202421818027.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The heating element of existing ceramic atomizing cores is prone to detaching from the ceramic shell due to thermal expansion and contraction during operation, leading to an increased failure rate during use.
Multiple bent spring terminals are connected to both sides of the heating element. By making elastic contact with the inner wall of the ceramic housing, it is prevented from detaching during thermal expansion. A rectangular waveform heating wire and spring terminal structure are used to increase elasticity and fixation.
This effectively prevents the heating element from separating from the ceramic shell during thermal expansion and contraction, thus improving the stability and service life of the heating element.
Smart Images
Figure CN223169167U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of heating atomization, and more specifically, relates to a heating sheet and a ceramic atomization core. Background Art
[0002] Currently, many electronic products use ceramic atomization cores. By heating the ceramic atomization cores, the effect of atomizing liquids can be achieved, such as atomizers, humidifiers, electronic cigarettes, etc.; when such ceramic atomization cores are working, the heating sheets inside them are connected in series in the heating circuit. By supplying power to the heating sheets, the heating sheets generate heat and instantly vaporize the surrounding liquids. The vaporized gas forms fog when it is cooled during overflow; currently, according to the structure of the ceramic atomization core, the heating sheets are generally made into ring-shaped tubular and planar shapes. When made into a tubular shape, the heating sheet is bent and abuts against the ceramic shell of the ceramic atomization core through its own elasticity; when made into a planar structure, in order to increase the heating power of the heating sheet, generally the method of increasing the length of the heating sheet is adopted. Currently, the heating wires on the heating sheet generally adopt a rectangular wave structure. When the heating sheet is working, it will generate high temperature and emit a large amount of heat, and at the same time its own temperature will also be increased. Its own thermal expansion and contraction will cause the heating sheet to deform and may be detached from the ceramic shell of the ceramic atomization core; therefore, a fixing structure needs to be set to fix it, but the current heating sheet does not have such a fixing structure, resulting in an increased probability of failures during use. Summary of the Invention
[0003] The purpose of the embodiments of this application is to provide a heating sheet to solve the technical problem of the risk of deformation and detachment from the ceramic shell during the operation of the heating sheet in the prior art.
[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide a heating sheet, including: a main connection part located on one side, and a first sub-connection part and a second sub-connection part located on the other side;
[0005] There are N1 heating wires and N2 heating wires respectively connected between the main connection part and the first sub-connection part and the second sub-connection part, where N1 and N2 are natural numbers;
[0006] Both sides of the heating wire are respectively connected with a plurality of bent elastic piece terminals.
[0007] Further, the shape of the heating wire is set in a rectangular wave, which includes a plurality of staggered horizontal segments and vertical segments, and the vertical segments are connected to the elastic piece terminals.
[0008] Further, the elastic piece terminal includes an arc-shaped bending section and a vertical abutting section, and the cross-sectional area of the lower end of the abutting section gradually increases from top to bottom.
[0009] Further, one heating wire is connected between the first secondary connection part and the main connection part; two heating wires are connected between the second secondary connection part and the main connection part, and the two heating wires are connected in parallel.
[0010] Further, a notch is provided in the middle of one end of the second secondary connection part close to the heating wire, and elastic terminals are respectively connected to both side walls of the notch.
[0011] Secondly, a notch is also provided on the main connection part corresponding to the part of the heating wires connected in parallel, and an elastic terminal is connected to the inner side wall of the notch.
[0012] Further, elastic terminals are respectively connected to both sides of the second secondary connection part.
[0013] Further, elastic terminals are respectively connected to both sides of the first secondary connection part.
[0014] Further, two heating wires are connected in parallel between the first secondary connection part and the main connection part; two heating wires are connected in parallel between the second secondary connection part and the main connection part.
[0015] Further, a plurality of reinforcing sheets are connected between the two heating wires connected in parallel.
[0016] Further, elastic terminals are respectively provided on both sides of the main connection part.
[0017] A ceramic atomization core includes a ceramic shell, and the above-mentioned heating sheet is arranged in the ceramic shell.
[0018] The beneficial effect of a heating sheet provided by this application is that: compared with the prior art, by respectively connecting a plurality of bent elastic terminals on both sides of the heating wire, when connecting with the ceramic shell, it elastically contacts the inner wall of the ceramic shell, and separation from the ceramic shell during thermal expansion can be avoided. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1 It is a schematic structural diagram of a heating sheet provided by an embodiment of this application;
[0021] Figure 2 For Figure 1 Another perspective schematic diagram of
[0022] Figure 3Another structural schematic diagram of the heating sheet provided by the embodiment of the present application;
[0023] Figure 4 is Figure 3 Another perspective schematic diagram of;
[0024] Figure 5 A perspective structural schematic diagram of the ceramic atomization core provided by the embodiment of the present application;
[0025] Figure 6 Another perspective structural schematic diagram of the ceramic atomization core provided by the embodiment of the present application;
[0026] Figure 7 A structural schematic diagram of the ceramic housing provided by the embodiment of the present application;
[0027] Among them, each reference numeral in the figure:
[0028] 1 - Main connection part; 2 - First sub-connection part; 3 - Second sub-connection part; 4 - Notch; 5 - Elastic sheet terminal; 6 - Reinforcing sheet; 7 - Heating wire; 8 - Ceramic housing; 10 - Heating sheet; 71 - Longitudinal section; 72 - Transverse section. Detailed implementation manners
[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the 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.
[0030] 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.
[0031] It should be understood that the orientation or positional relationship indicated by the terms "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, and 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, and therefore should not be construed as a limitation to the present application.
[0032] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.
[0033] Please refer to Figure 1 and Figure 2 , and now a heating sheet provided by an embodiment of this application is described. The heating sheet 10 includes: a main connection portion 1 on one side, and a first sub-connection portion 2 and a second sub-connection portion 3 on the other side, with the first sub-connection portion 2 and the second sub-connection portion 3 being spaced apart; N1 heating wires 7 and N2 heating wires 7 are respectively connected between the main connection portion 1 and the first sub-connection portion 2 and the second sub-connection portion 3, where N1 and N2 are natural numbers; both sides of the heating wire 7 are respectively connected with a plurality of bent elastic terminal pieces 5.
[0034] In the embodiment of this application, the heating sheet 10 is set as a planar structure. One side of the heating sheet 10 is the main connection portion 1, and the other side is the first sub-connection portion 2 and the second sub-connection portion 3 which are spaced apart; for the convenience of description, the heating sheet 10 is exemplarily arranged longitudinally, such as Figure 1 and Figure 3 shown; the main connection portion 1 is connected to the first sub-connection portion 2 through N1 heating wires 7, and the main connection portion 1 is connected to the second sub-connection portion 3 through N2 heating wires 7; both sides of the heating wire 7 in the width direction are installation spaces. To facilitate the fixed connection between the heating wire 7 and the ceramic housing 8, this technical solution adopts connecting a plurality of bent elastic terminal pieces 5 on both sides of the heating wire 7, and the elastic terminal pieces 5 are in contact with the ceramic housing 8; since elastic terminal pieces 5 are arranged on both sides of the heating wire 7, the terminal pieces on both sides clamp the heating wire 7. Even if the heating wire 7 deforms due to its own thermal expansion and the heating wire 7 may separate from the ceramic housing 8, the elastic terminal pieces 5 on both sides will not separate. After the heating wire 7 cools down, the heating wire 7 will fit or be close to the surface of the ceramic housing 8 again.
[0035] In addition, it should be noted that: for the convenience of installing the heating sheet 10, the distances between the main connection portion 1 and the second sub-connection portion 3 and between the second main connection portion 1 on the heating sheet 10 are equal, that is: the distance between the main connection portion 1 and the first sub-connection portion 2 is L1, and the distance between the main connection portion 1 and the second sub-connection portion 3 is also L, and at the same time, the length of the heating wire 7 is also L1.
[0036] Secondly, when the heating sheet 10 is in use, the main connection part 1, the first sub-connection part 2, and the second sub-connection part 3 are not all connected to the circuit. Only two of them are connected to the circuit. Therefore, when in use, there will be three situations: The first situation is that the main connection part 1 and the first sub-connection part 2 are connected to the two power supply terminals of the power supply. At this time, only N1 heating wires 7 are connected to the circuit; the second situation is that the main connection part 1 and the second sub-connection part 3 are connected to the two power supply terminals of the power supply. At this time, only N2 heating wires 7 are connected to the circuit; the third situation is that the first sub-connection part 2 and the second sub-connection part 3 are connected to the two power supply terminals of the power supply. At this time, N1 heating wires 7 and N2 heating wires 7 are connected in series to the circuit. If N1 and N2 are not equal, there will be three different wiring methods, that is, the heating sheet 10 can provide three heating powers; if N1 and N2 are equal, there will be two different wiring methods, that is, the heating sheet 10 can provide two heating powers.
[0037] When the heating wire 7 works, it instantaneously heats the surrounding liquid to a high temperature. The liquid vaporizes and then liquefies to form mist. To increase the vaporization amount, it is necessary to make the heating wire 7 have a long length. Refer to Figures 1 to 4 , the shape of the heating wire 7 is arranged in a rectangular wave. The waveform structure can obtain a long length per unit area. The heating wire 7 includes a plurality of horizontally arranged segments 72 and vertically arranged segments 71 that are alternately arranged. The left and right ends of the horizontally arranged segment 72 are respectively connected to the vertically arranged segments 71. The alternately arranged horizontally arranged segments 72 and vertically arranged segments 71 are spliced into a wavy heating wire 7; wherein, the vertically arranged segment 71 is connected to the elastic sheet terminal 5. Preferably, the elastic sheet terminal 5 is connected to the middle of the vertically arranged segment 71.
[0038] To increase the heat generation amount per unit area of the heating sheet 10, the heating wire 7 can also adopt other waveform structures or sawtooth structures; in the embodiments of the present application, exemplarily, the heating wire 7 is arranged in a rectangular wave shape and is composed of a plurality of horizontally arranged segments 72 and vertically arranged segments 71 that are connected. The horizontally arranged segments 72 are arranged in parallel at intervals. The two ends of the horizontally arranged segment 72 are respectively connected to the vertically arranged segments 71; the middle part of the outside of the vertically arranged segment 71 is connected to the elastic sheet terminal 5. At this time, since the vertically arranged segments 71 are alternately arranged, the elastic sheet terminals 5 on both sides are not facing each other, so that the heating wire 7 has good elasticity, that is, telescopic performance; when heated and expanded, there is a large redundant space for deformation. Secondly, the heating wire 7 can also be arranged in a wavy shape, a sine wave shape, a sawtooth wave shape, etc.
[0039] When the heating sheet 10 is in use, the heating wire 7 abuts against the ceramic housing 8. The elastic sheet terminal 5 on the side of the heating wire 7 needs to abut against a protrusion separately provided on the ceramic housing 8. To facilitate cooperation with the protrusion, the elastic sheet terminal 5 includes an arc-shaped bending section and a vertical abutting section. The cross-sectional area of the lower end of the abutting section gradually increases from top to bottom. The end of the abutting section abuts against the protrusion, and the protrusions on both sides form a clamping force to facilitate fixing the heating wire 7.
[0040] After fixation, when thermal expansion or other situations occur, the extrusion force between the heating wire 7 and the ceramic housing 8 increases. The elastic piece terminal 5 has elasticity by setting a bending section, and the bending end gradually deforms; in order to reduce the unit area pressure of the abutting section against the ceramic housing 8, it is necessary to increase the abutting area; in the embodiment of the present application, the cross-sectional area of the lower end of the abutting section is set to gradually increase from top to bottom.
[0041] See Figure 1 、 Figure 2 As shown in FIGS. and, in the first example of this embodiment, one of the above-mentioned heating wires 7 is connected between the first sub-connecting portion 2 and the main connecting portion 1; two of the above-mentioned heating wires 7 are connected between the second sub-connecting portion 3 and the main connecting portion 1, and the two heating wires 7 are connected in parallel.
[0042] In the implementation of the present application, considering the area of the heating sheet 10 and the use width of the heating wire 7, one heating wire 7 is exemplarily arranged between the first sub-connecting portion 2 and the main connecting portion 1, and two parallel heating wires 7 are arranged between the second sub-connecting portion 3 and the main connecting portion 1. Therefore, there will be three times the power during operation. For example, when the first sub-connecting portion 2 and the main connecting portion 1 are connected to the circuit, only one heating wire 7 works, and the heating power is Q1; when the second sub-connecting portion 3 and the main connecting portion 1 are connected to the circuit, two heating wires 7 work, and the heating power is 2Q1; when the first sub-connecting portion 2 and the second sub-connecting portion 3 are connected to the circuit, three heating wires 7 work, and the heating power is 3Q1; thus, three sequentially increasing heating powers can be formed. Corresponding to the use of electronic products or electrical appliances, low-grade heating, medium-grade heating, and high-grade heating can be formed. Connecting the heating wires 7 in parallel can prevent the distance between the main connecting portion 1 and the second sub-connecting portion 3 from changing.
[0043] See Figure 2 、 Figure 4 As shown in FIGS. and, a notch 4 is provided in the middle of one end of the second sub-connecting portion 3 close to the heating wire 7, and elastic piece terminals 5 are respectively connected to both side walls of the notch 4.
[0044] Since the second sub-connecting portion 3 needs to be connected to two heating wires 7, the length of the second sub-connecting portion 3 is relatively long, and it is prone to deformation during thermal expansion. Therefore, in the present application, the notch 4 is provided to reduce its surface area, so that the amount of deformation of the second sub-connecting portion 3 during thermal deformation is reduced; at the same time, elastic piece terminals 5 are connected to both side walls of the notch 4 to assist in fixing the second sub-connecting portion 3 through the elastic piece terminals 5.
[0045] When the second secondary connecting portion 3 undergoes thermal expansion and deformation upon heating, the second secondary connecting portion 3 will squeeze the elastic terminal 5 connected to the side wall of the notch 4, and the elastic terminal 5 will undergo further deformation. At the same time, it also fixes the second secondary connecting portion 3 to prevent it from detaching from the ceramic housing 8.
[0046] Preferably, the main connecting portion 1 is also provided with a notch 4 corresponding to the parallel-connected heating wires 7, and the inner side wall of the notch 4 is connected with an elastic terminal 5.
[0047] Similarly, in order to reduce the deformation amount of the main connecting portion 1 during thermal expansion, a notch 4 is also provided corresponding to the parallel-connected heating wires 7 on the main connecting portion 1; an elastic terminal 5 is connected to the inner side wall of the notch 4 to reinforce the connection between the main connecting portion 1 and the ceramic housing 8.
[0048] See Figure 1 、 Figure 2 In order to reinforce the connection between the second secondary connecting portion 3 and the ceramic housing 8, elastic terminals 5 are respectively connected to both sides of the second secondary connecting portion 3.
[0049] Elastic terminals 5 are connected to both outer sides of the second secondary connecting portion 3. For the convenience of description, this elastic terminal 5 is an outer elastic terminal 5. Secondly, elastic terminals 5 are also connected to both side walls of the notch 4 of the second secondary connecting portion 3, and this elastic terminal 5 is an inner elastic terminal 5. Preferably, the outer elastic terminal 5 and the inner elastic terminal 5 are arranged in a staggered manner; in this embodiment, the proportion of the notch 4 is relatively large. When the second secondary connecting portion 3 undergoes thermal deformation, it is mainly the parts on both sides of the notch 4. Therefore, the fixation is mainly carried out on the parts on both sides of the notch 4, and both of these parts correspond to an inner elastic terminal 5 and an outer elastic terminal 5. After the inner elastic terminal 5 and the outer elastic terminal 5 are arranged in a staggered manner, when the parts on both sides of the notch 4 undergo thermal expansion, the inner elastic terminals 5 and the outer elastic terminals 5 on both sides are squeezed and deformed. Due to the staggered arrangement, the thermal expansion deformation amount of the parts on both sides of the notch 4 can be relatively large.
[0050] Preferably, similarly for the convenience of reinforcing the connection between the first secondary connecting portion 2 and the ceramic housing 8, elastic terminals 5 are respectively connected to both sides of the first secondary connecting portion 2.
[0051] When fixing the first secondary connecting portion 2, the embodiment of the present application also adopts the method of arranging elastic terminals 5 on both sides of the first secondary connecting portion 2, and the first secondary connecting portion 2 is clamped by the elastic terminals 5 to assist in fixing the first secondary connecting portion 2.
[0052] See 3, Figure 4 Another embodiment structure of the present application is: Two of the above-mentioned heating wires 7 are connected in parallel between the first secondary connecting portion 2 and the main connecting portion 1; Two of the above-mentioned heating wires 7 are connected in parallel between the second secondary connecting portion 3 and the main connecting portion 1.
[0053] In an embodiment of the present application, N1 and N2 are both exemplarily set to 2; there are 2 heating wires 7 connected in parallel between the main connection part 1 and the first sub-connection part 2 and the second sub-connection part 3 respectively. When the main connection part 1 is connected to the first sub-connection part 2 or the second sub-connection part 3 in the circuit, the heating power is 2Q1 in both cases. When the first sub-connection part 2 is connected to the second sub-connection part 3 in the circuit, the heating power is 4Q1. At this time, the heating sheet 10 has only 2 power outputs, but the maximum power is twice the minimum power, which can be applied to two-gear electronic products. Secondly, since the structures of the heating wires 7 between the main connection part 1 and the first sub-connection part 2 and between the main connection part 1 and the second sub-connection part 3 are the same, they can be switched for use when the low gear power is used, thus extending the service life.
[0054] See Figure 3 、 Figure 4 , to improve the structural strength of the parallel-connected heating wires 7, several reinforcing sheets 6 are connected between the 2 parallel-connected heating wires 7.
[0055] When the heating sheet 10 is in use, it needs to be fixed to the inner surface of the ceramic housing 8. Since the heating wire 7 is arranged in a rectangular wave, the heating sheet 10 has a certain telescopic elasticity, which makes it easy to bend and difficult to be fixed, and the overall strength is somewhat lacking. Therefore, in the embodiment of the present application, several reinforcing sheets 6 are connected between the two parallel-connected heating wires 7 to increase the strength of the heating sheet 10 through the reinforcing sheets 6. The reinforcing sheets 6 are mainly arranged between two corresponding longitudinal sections 71 on the two side heating wires.
[0056] Secondly, elastic sheet terminals 5 are respectively arranged on both sides of the main connection part 1. Similarly, to facilitate the fixation of the main connection part 1, elastic sheet terminals 5 are also arranged on both sides thereof.
[0057] See Figure 5 、 Figure 6 And Figure 7 ; The present application provides another embodiment: a ceramic atomization core, which includes a ceramic housing 8, and the above-mentioned heating sheet 10 is arranged in the ceramic housing 8.
[0058] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A heating sheet, characterized in that: It includes: A main connection part located on one side, and a first sub-connection part and a second sub-connection part located on the other side; There are N1 heating wires and N2 heating wires respectively connected between the main connection part and the first sub-connection part and the second sub-connection part, and N1 and N2 are natural numbers; Both sides of the heating wire are respectively connected with a plurality of bent elastic terminal pieces.
2. The heating sheet according to claim 1, wherein: The shape of the heating wire is arranged in a rectangular wave, which includes a plurality of staggered horizontal segments and vertical segments, and the vertical segments are connected to the elastic terminal pieces.
3. The heating sheet according to claim 2, wherein: The elastic terminal piece includes an arc-shaped bending section and a vertical abutting section, and the cross-sectional area of the lower end of the abutting section gradually increases from top to bottom.
4. The heating sheet according to claim 1, characterized in that: There is 1 heating wire connected between the first sub-connection part and the main connection part; there are 2 heating wires connected between the second sub-connection part and the main connection part, and the 2 heating wires are connected in parallel.
5. The heating sheet according to claim 4, wherein: There is a notch in the middle of one end of the second sub-connection part close to the heating wire, and elastic terminal pieces are respectively connected to both side walls of the notch.
6. The heating sheet according to claim 1, wherein: Elastic terminal pieces are respectively connected to both sides of the second sub-connection part; elastic terminal pieces are respectively connected to both sides of the first sub-connection part.
7. The heating sheet according to claim 1, wherein: There are 2 heating wires connected in parallel between the first sub-connection part and the main connection part; there are 2 heating wires connected in parallel between the second sub-connection part and the main connection part.
8. The heating sheet according to claim 4 or 7, characterized in that: A number of reinforcing pieces are connected between the 2 heating wires connected in parallel.
9. The heating sheet according to claim 1, wherein: Elastic terminal pieces are respectively arranged on both sides of the main connection part.
10. A ceramic atomizing core, which comprises a ceramic housing, and is characterized in that: The heating sheet according to any one of claims 1 to 9 is provided in the ceramic housing.