Glass-based heating body and electronic atomization device
By setting a toothed structure with a return gas gap on the glass substrate, the problem of manufacturing a return gas channel in electronic atomization devices is solved, and continuous liquid supply to the heating layer is achieved, avoiding dry burning.
Patent Information
- Application Number
- CN202520078713.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In the design of existing electronic atomizing devices, it is difficult to achieve an effective return air channel design. The manufacturing of the return air channel in existing electronic atomizing devices is quite difficult, which leads to the heating element burning dry due to untimely liquid supply.
This invention employs a glass substrate with porous sections and dense sections connected to the porous sections, and features a first surface and a second surface arranged in a relatively distributed manner. It addresses manufacturing technology issues related to the heating layer by designing a return gas channel on the glass substrate. Furthermore, it solves the problem through a glass substrate heating technology, and by incorporating a toothed structure with a return gas gap on the glass substrate. This allows external gas to enter the liquid storage chamber through the return gas gap, thereby balancing the negative pressure within the liquid storage chamber, restoring the supply pressure difference, and ensuring a continuous liquid supply to the heating layer.
This reduces the manufacturing difficulty of the return gas channel, ensures a continuous liquid supply to the heating layer, and avoids dry burning of the heating element due to untimely liquid supply.
Smart Images
Figure CN223913489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic atomization technical field especially, relate to a kind of glass base heating body and electronic atomization device. BACKGROUND
[0002] Electronic atomization device includes the oil cup for storing atomization liquid and the heating body of heating atomization liquid atomization generation aerosol, in order to discharge aerosol, electronic atomization device is equipped with the exhaust passage for gas and aerosol flow. Among them, when heating atomization, since atomization liquid in oil cup is consumed, the gas space in oil cup increases, so that the air pressure in oil cup decreases, atomization liquid flows to the difficulty of heating body, leading to heating body to be prone to dry burning phenomenon due to liquid supply not in time.
[0003] In related technology, in order to avoid the air pressure reduction in oil cup, gas return channel is arranged between the support and flexible sealing element of electronic atomization device, however, the design of gas return channel needs to open gas return hole on flexible sealing element, and the difficulty of setting gas return hole on flexible sealing element is greater, leading to greater manufacturing difficulty of gas return channel. SUMMARY
[0004] The technical problem to be solved by the utility model lies in providing a kind of glass base heating body and electronic atomization device, to solve the problem of greater manufacturing difficulty of gas return channel of electronic atomization device in related technology.
[0005] To solve the above technical problem, the utility model provides a kind of glass base heating body in the first aspect, including:
[0006] Glass base body, including porous part and dense part connected to the porous part, the glass base body is equipped with the first face and the second face of relative distribution, at least a part of the edge of the dense part is dentiform structure, the dentiform structure is formed with the gas return gap that passes through the first face and the second face between adjacent two teeth;And,
[0007] Heating layer is set to the first face or second face of the glass base body and covers at least part of the porous part.
[0008] Optionally, the porous part is annular, and the dense part includes:
[0009] First dense body is connected to the porous part, the first dense body is annular, and the porous part is located in the area enclosed by the first dense body;And,
[0010] Second dense body is connected to the porous part, the second dense body is located in the area enclosed by the porous part, and the second dense body is equipped with the air hole that passes through the first face and the second face;
[0011] The tooth-shaped structure is formed on the outer circumferential edge of the first dense body and / or on the inner circumferential wall of the air hole.
[0012] Optionally, the dense part is annular, the porous part is block-shaped, the porous part is located in the area enclosed by the dense part, and the tooth-shaped structure is formed on the outer circumferential edge of the dense part.
[0013] Optionally, the glass-based heating body further comprises an electrode layer arranged on the dense part and electrically connected with the heating layer, the electrode layer and the heating layer are on the same face of the glass-based body, the electrode layer is provided in plurality, and the plurality of electrode layers are distributed at intervals.
[0014] Optionally, the heating layer is provided in one and is annular, and the plurality of electrode layers are distributed at intervals along the circumference of the heating layer.
[0015] Optionally, the cross-sectional shape of the heating layer is polygonal.
[0016] The plurality of sides of the heating layer are connected with the plurality of electrode layers one by one; or,
[0017] The electrode layer is provided in two, and the two electrode layers are respectively connected to the two sides of the heating layer distributed oppositely; or,
[0018] The plurality of corners of the heating layer are connected with the plurality of electrode layers one by one; or,
[0019] The electrode layer is provided in two, and the two electrode layers are respectively connected to the two corners of the heating layer distributed oppositely.
[0020] Optionally, the heating layer is provided in plurality, the plurality of heating layers are distributed at intervals, and each of the heating layers is respectively connected with two electrode layers.
[0021] Optionally, the dense part is provided with a gas return hole, and the diameter of the gas return hole is greater than the diameter of the micropore of the porous part.
[0022] Optionally, the porous part is formed by pickling after melting and drawing of a plurality of primary composite wires, the primary composite wire is formed by melting and drawing after cooperation of acid-resistant hollow glass wires and acid-dissolving solid glass wires;
[0023] The dense part is formed by melting and drawing of a plurality of acid-resistant solid glass wires.
[0024] The second aspect of the utility model discloses an electronic atomization device, comprising the glass-based heating body of any one of the above.
[0025] The utility model discloses a glass base heating body and electronic atomization device and related technical compared with prior art has beneficial effect at in: through setting up the dentate structure with back gas gap on the glass base body, the outside gas can enter the liquid storage cavity through back gas gap to balance the negative pressure in the liquid storage cavity, restores the liquid supply pressure difference, guarantees the sustained liquid supply of heating layer. BRIEF DESCRIPTION OF DRAWINGS
[0026] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or related technical, below will to the drawing needed to use in the embodiment or related technical description briefly introduce, obviously, below description's drawing only some embodiments of the utility model, for the person skilled in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.
[0027] Figure 1 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0028] Figure 2 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0029] Figure 3 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0030] Figure 4 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0031] Figure 5 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0032] Figure 6 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0033] Figure 7 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0034] Figure 8 It is the overhead view of the glass base heating body in an example provided by the utility model;
[0035] Figure 9 It is the structure schematic view of the glass base heating body in an example provided by the utility model;
[0036] Figure 10 It is the preparation flow schematic view of the glass base body in an example provided by the utility model;
[0037] Figure 11It is the preparation flow schematic diagram of the glass base body in the example provided by the utility model.
[0038] Figure 12 It is the preparation flow schematic diagram of the glass base body in the example provided by the utility model.
[0039] In the drawings, various reference signs represent: 1, glass base body; 11, porous part; 12, dense part; 121, first dense body; 122, second dense body; 123, air hole; 124, back air hole; 13, tooth structure; 131, back air gap; 2, heating layer; 3, electrode layer. DETAILED DESCRIPTION
[0040] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0041] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.
[0042] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple", "several" is two or more than two, unless otherwise explicitly and specifically limited.
[0043] Embodiment:
[0044] The utility model discloses an electronic atomization device, including liquid storage cup, glass base heating body and battery pole assembly, liquid storage cup is connected in one end of glass base heating body, and battery pole assembly is connected in the other end of glass base heating body. Liquid storage cup is equipped with the liquid storage cavity for storing atomization liquid, and glass base heating body is equipped with the back gas passage that communicates with the liquid storage cavity, and glass base heating body is used for heating atomization liquid atomization and generates aerosol, and battery pole assembly is used for supplying power to glass base heating body.
[0045] Please refer to Figures 1 to 9 , glass base heating body includes glass base body 1 and heating layer 2, and glass base body 1 includes porous part 11 and dense part 12 connected to porous part 11, and glass base body 1 is equipped with oppositely distributed first face and second face, and at least a part of edge of dense part 12 is dentiform structure 13, and back gas gap 131 that penetrates first face and second face is formed between adjacent two teeth in dentiform structure 13. Heating layer 2 is arranged on the first face or the second face of glass base body 1 and covers at least part of porous part 11.
[0046] By setting dentiform structure 13 with back gas gap 131 on glass base body 1, external gas can enter the liquid storage cavity through back gas gap 131, so as to balance the negative pressure in the liquid storage cavity, restore the liquid supply pressure difference, and ensure the continuous liquid supply of heating layer 2. Moreover, the difficulty of setting dentiform structure 13 on the edge of dense part 12 of glass base body 1 is relatively low, thereby reducing the manufacturing difficulty of back gas gap 131.
[0047] It should be noted that porous part 11 of glass base body 1 has a micro-pore array, so that porous part 11 can absorb atomization liquid, and heating layer 2 heats the atomization liquid held by porous part 11 to atomize and generate aerosol; back gas gap 131 is part of the back gas passage.
[0048] Please refer to Figure 10 , Figure 11 and Figure 12 , porous part 11 is formed by pickling after melting and drawing of a plurality of primary composite wires, and the primary composite wire is formed by melting and drawing after cooperation of acid-resistant hollow glass wire and acid-soluble solid glass wire, so that the distribution and size of each micro-pore in porous part 11 can be accurately controlled, thereby the pore structure can be completely customized, the consistency of glass base heating body is good, and the consistency of taste is beneficial to be ensured. Dense part 12 is formed by melting and drawing of a plurality of acid-resistant solid glass wires.
[0049] It should be noted that the acid-resistant hollow glass can be silicate glass, which can resist acid solution with pH value < 7; the acid-soluble solid glass can be borate glass, which will be etched by acid between pH value 0-6. In addition, the acid-resistant hollow glass can also be soda-lime glass, aluminum-silicon glass, etc., and the acid-soluble solid glass can also be sodium-rhenium stannate glass, three-boron aluminum oxide glass, etc.
[0050] Please refer to Figures 1 to 8 In some embodiments, the porous portion 11 is annular, and the dense portion 12 includes a first dense body 121 and a second dense body 122. The first dense body 121 is connected to the porous portion 11, and the first dense body 121 is annular, and the porous portion 11 is located in the area enclosed by the first dense body 121, that is, the outer side of the porous portion 11 is connected to the inner side of the first dense body 121. The second dense body 122 is connected to the porous portion 11, and the second dense body 122 is located in the area enclosed by the porous portion 11, that is, the second dense body 122 is also annular, and the outer side of the second dense body 122 is connected to the inner side of the porous portion 11. The second dense body 122 is provided with a ventilation hole 123 penetrating the first surface and the second surface, and the aerosol can be discharged through the ventilation hole 123.
[0051] In the embodiments of the utility model, the tooth-shaped structure 13 is formed on the outer circumferential edge of the first dense body 121, and / or the tooth-shaped structure 13 is formed on the inner circumferential wall of the ventilation hole 123, for example:
[0052] Please refer to Figure 1 And Figure 2 In one example, the cross-sectional shape of the first dense body 121 and the second dense body 122 is square, and the tooth-shaped structure 13 can be formed on the four sides of the outer side of the first dense body 121 and the four sides of the inner side of the second dense body 122. The preparation method of the glass substrate 1 in this example is as follows:
[0053] Please refer to Figure 11 The round bar-shaped acid-dissolving solid glass filament is sleeved in the round pipe-shaped acid-resistant hollow glass filament to obtain a sleeve, and then the sleeve is fused and drawn into a relatively thin primary composite filament. A plurality of primary composite filaments are arranged into a primary arrangement rod with a hexagonal cross section, and then the primary arrangement rod is fused and drawn into a thinner secondary composite filament, which contains both acid-resistant and acid-dissolving glass materials. Then a plurality of secondary composite filaments, a plurality of acid-resistant solid glass filaments with a hexagonal cross section, and a plurality of acid-dissolving solid glass filaments with a hexagonal cross section are arranged into a secondary arrangement rod with a rectangular cross section, and the secondary arrangement rod is fused and drawn into a tertiary composite filament. The tertiary composite filament is cut into a sheet, and the sheet-shaped tertiary composite filament is etched and cleaned to obtain the glass substrate 1 with the porous portion 11, the first dense body 121, the second dense body 122 and the ventilation hole 123. At this time, the four sides of the outer side of the first dense body 121 are all tooth-shaped structures 13, and the four sides of the inner side of the second dense body 122 are all tooth-shaped structures 13.
[0054] In one example, the cross-sectional shape of the first dense body 121 is square, and the tooth-shaped structure 13 can be formed on two oppositely distributed sides of the outer side of the first dense body 121.
[0055] Please refer to Figures 3 to 8In one example, the first dense body 121 and the second dense body 122 are both hexagonal in cross-sectional shape, the tooth-like structure 13 can be formed on the six sides of the first dense body 121 and the six sides of the second dense body 122, and the following will illustrate the preparation of the glass substrate 1 in this example:
[0056] The round rod-shaped acid-dissolvable solid glass filaments are sleeved in the round tube-shaped acid-resistant hollow glass filaments to obtain a sleeve, and then the sleeve is fused and drawn into a primary composite filament with a relatively small diameter. A plurality of primary composite filaments are arranged into a primary arrangement rod with a hexagonal cross section, and then the primary arrangement rod is fused and drawn into a secondary composite filament with a smaller diameter, which contains both acid-resistant and acid-dissolvable glass materials. Then a plurality of secondary composite filaments, a plurality of acid-resistant solid glass filaments with a hexagonal cross section, and a plurality of acid-dissolvable solid glass filaments with a hexagonal cross section are arranged into a secondary arrangement rod with a hexagonal cross section, and the secondary arrangement rod is fused and drawn into a tertiary composite filament. The tertiary composite filament is cut into a sheet, and the sheet-shaped tertiary composite filament is subjected to acid etching and cleaning to obtain the glass substrate 1 with the porous part 11, the first dense body 121, the second dense body 122, and the vent hole 123. At this time, the six sides of the first dense body 121 are tooth-like structures 13, and the six sides of the second dense body 122 are tooth-like structures 13.
[0057] Please refer to Figure 9 In some embodiments, the dense part 12 is ring-shaped, and the porous part 11 is block-shaped, and the porous part 11 is located in the area enclosed by the dense part 12, wherein the tooth-like structure 13 is formed on the outer side of the dense part 12, for example:
[0058] In one example, the dense part 12 is square in cross-sectional shape, and the tooth-like structure 13 is formed on two sides opposite to the dense part 12, and the following will illustrate the preparation of the glass substrate 1 in this example:
[0059] Please refer to Figure 10The plurality of cross-section triangular acid-dissolvable solid glass filaments are wrapped outside the cross-section trapezoidal acid-resistant solid glass filaments to obtain a combination, and then the combination is fused and drawn into relatively thin primary composite filaments. The plurality of primary composite filaments are arranged into a primary arrangement rod with a cross-section hexagon, and then the primary arrangement rod is fused and drawn into thinner secondary composite filaments, which contain both acid-resistant and acid-dissolvable glass materials. Then the plurality of secondary composite filaments, the plurality of cross-section hexagonal acid-resistant solid glass filaments, and the plurality of cross-section trapezoidal acid-resistant solid glass filaments are arranged into a secondary arrangement rod with a cross-section rectangle, and the secondary arrangement rod is fused and drawn into tertiary composite filaments, which are cut into pieces. After the acid-etching cleaning of the pieces, the glass substrate 1 with the porous part 11 and the dense part 12 is obtained, and the two opposite sides of the dense part 12 are the tooth-shaped structures 13.
[0060] In one example, the cross-section shape of the dense part 12 is square, and the tooth-shaped structures 13 are formed on the four sides of the dense part 12.
[0061] Please refer to Figures 1 to 8 The glass-based heating body further comprises an electrode layer 3 arranged on the dense part 12 and electrically connected with the heating layer 2. The electrode layer 3 and the heating layer 2 are on the same side of the glass substrate 1. The electrode layer 3 is provided in plurality, and the plurality of electrode layers 3 are distributed at intervals. The battery rod assembly supplies power to the heating layer 2 through the electrode layer 3.
[0062] Please refer to Figure 1 , Figures 3 to 6 In some embodiments, the heating layer 2 is provided in one and in a ring shape. The plurality of electrode layers 3 are distributed at intervals along the circumference of the heating layer 2. The plurality of electrode layers 3 are electrically conductive with the heating layer 2 to form two parallel electric circuits. The two parallel heating layers 2 have a larger heating area, so that a larger atomization amount can be obtained to meet the demand of a user for a large atomization amount.
[0063] It should be noted that when the electrode layer 3 is provided in two, one of the two electrode layers 3 is a positive electrode, and the other is a negative electrode, which can save electrode materials, but the direction needs to be identified during structure assembly. When the electrode layer 3 is provided in 2N (N is greater than 1), the foolproof can be realized during structure assembly.
[0064] The cross-section shape of the heating layer 2 is circular or polygonal. The following is an example of the arrangement of the electrode layer 3 when the cross-section shape of the heating layer 2 is hexagonal:
[0065] Please refer to Figure 3 In one example, the plurality of sides of the heating layer 2 are connected one by one with the plurality of electrode layers 3, i.e., the six electrode layers 3 are connected one by one on the six sides of the heating layer 2.
[0066] Please refer to Figure 1and Figure 4 In one example, the electrode layer 3 is provided with two, and the two electrode layers 3 are respectively connected to the two opposite sides of the heat generating layer 2.
[0067] Referring to Figure 5 In one example, the heat generating layer 2 is connected to the electrode layer 3 at the corresponding corners, that is, six electrode layers 3 are connected to the six corners of the heat generating layer 2.
[0068] Referring to Figure 6 In one example, the electrode layer 3 is provided with two, and the two electrode layers 3 are respectively connected to the two opposite corners of the heat generating layer 2.
[0069] Referring to Figure 2 , Figure 7 and Figure 8 In some embodiments, the heat generating layer 2 is provided with multiple, and the multiple heat generating layers 2 are spaced apart, and each heat generating layer 2 is respectively connected with two electrode layers 3, so that the multiple heat generating layers 2 and the multiple electrode layers 3 form multiple independent electric circuits, so that a single electric circuit can work alone or multiple electric circuits can work simultaneously, meeting the demand of different atomization amount. The following is an example:
[0070] Referring to Figure 2 and Figure 7 In one example, the heat generating layer 2 is provided with two, and the electrode layer 3 is provided with four, then the two heat generating layers 2 and the four electrode layers 3 together form two electric circuits, which can realize single electric circuit working alone or two electric circuits working simultaneously.
[0071] Referring to Figure 8 In one example, the heat generating layer 2 is provided with three, and the electrode layer 3 is provided with six, then the three heat generating layers 2 and the six electrode layers 3 together form three electric circuits, which can realize single electric circuit working alone, two electric circuits working simultaneously or three electric circuits working simultaneously.
[0072] Referring to Figure 9 The dense part 12 is provided with a back gas hole 124, the back gas hole 124 is part of the back gas channel, and the diameter of the back gas hole 124 is greater than the diameter of the micropore of the porous part 11, so as to facilitate the provision of gas to the liquid storage cavity through the back gas hole 124. Among them, the number of back gas holes 124 can be provided with multiple, for example, the back gas hole 124 can be provided with two, and the two back gas holes 124 are spaced apart from the porous part 11.
[0073] The following is an example of the preparation method of the glass substrate 1 with the back gas hole 124:
[0074] Referring to Figure 12The acid-dissolvable solid glass filaments in round bar shape are sleeved in the acid-resistant hollow glass filaments in round tube shape to obtain a sleeve, and then the sleeve is fused and drawn into a primary composite filament with relatively small diameter. A plurality of the primary composite filaments and a plurality of square acid-resistant solid glass filaments are arranged into a primary arrangement rod with a hexagonal cross section, and then the primary arrangement rod is fused and drawn into a secondary composite filament with smaller diameter, which contains both acid-resistant and acid-dissolvable glass materials. Then a plurality of the secondary composite filaments, a plurality of acid-resistant solid glass filaments with trapezoidal cross section, and two acid-dissolvable solid glass filaments with hexagonal cross section are arranged into a secondary arrangement rod with rectangular cross section, the secondary arrangement rod is fused and drawn into a tertiary composite filament, the tertiary composite filament is cut into a sheet, and the sheet-shaped tertiary composite filament is subjected to acid-etching cleaning to obtain the glass substrate 1 with the porous part 11, the dense part 12, and the back gas hole 124, at this time, the two opposite sides of the dense part 12 are tooth-shaped structures 13, and the two back gas holes 124 are arranged at intervals on the dense part 12.
[0075] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A glass-based heat generator, characterized by, The glass-based heating body comprises: a glass substrate comprising a porous part and a dense part connected to the porous part, the glass substrate being provided with oppositely distributed first and second surfaces, at least a part of the edge of the dense part being provided with a tooth structure, and a backflow gap being formed between two adjacent teeth of the tooth structure and penetrating the first and second surfaces; and a heating layer arranged on the first or second surface of the glass substrate and covering at least part of the porous part.
2. The glass-based heat generator according to claim 1, characterized by The porous part is annular, and the dense part comprises: a first dense body connected to the porous part, the first dense body being annular, and the porous part being located in an area enclosed by the first dense body; and a second dense body connected to the porous part, the second dense body being located in an area enclosed by the porous part, and the second dense body being provided with a ventilation hole penetrating the first and second surfaces; wherein the tooth structure is formed on the outer circumferential edge of the first dense body, and / or the tooth structure is formed on the inner circumferential wall of the ventilation hole.
3. The glass-based heat generator according to claim 1, characterized by The dense part is annular, the porous part is block-shaped, the porous part is located in an area enclosed by the dense part, and the tooth structure is formed on the outer circumferential edge of the dense part.
4. The glass-based heat generator according to claim 1, characterized by The glass-based heating body further comprises an electrode layer arranged on the dense part and electrically connected to the heating layer, the electrode layer and the heating layer being on the same surface of the glass substrate, the electrode layer being provided with a plurality of electrode layers, and the plurality of electrode layers being distributed at intervals.
5. The glass-based heat generator according to claim 4, characterized by The heating layer is provided with one and is annular, and the plurality of electrode layers are distributed at intervals along the circumference of the heating layer.
6. The glass-based heat generator according to claim 5, characterized by The cross-sectional shape of the heating layer is polygonal; wherein the plurality of sides of the heating layer are connected to the plurality of electrode layers one by one; or the electrode layer is provided with two, and the two electrode layers are respectively connected to the two sides of the heating layer distributed oppositely; or the plurality of corners of the heating layer are connected to the plurality of electrode layers one by one; or the electrode layer is provided with two, and the two electrode layers are respectively connected to the two corners of the heating layer distributed oppositely.
7. The glass-based heat generator according to claim 4, characterized by The heating layer is provided with a plurality of heating layers, and each of the plurality of heating layers is connected to two electrode layers.
8. The glass-based heat generator according to claim 1, characterized by The dense part is provided with a backflow hole, and the diameter of the backflow hole is greater than the diameter of the micropore of the porous part.
9. The glass-based heat generator according to claim 1, characterized by The porous part is formed by pickling after melting and drawing of a plurality of primary composite wires, and the primary composite wire is formed by melting and drawing after matching of acid-resistant hollow glass wires and acid-soluble solid glass wires; The dense part is formed by melting and drawing of a plurality of acid-resistant solid glass wires.
10. An electronic atomizing device, characterized by, The glass-based heating body comprises: any one of claims 1-9.