Heating atomization device capable of preventing heat loss

Abstract

The utility model belongs to the field of heating atomization chips, and provides a heating atomization device capable of preventing heat loss, which comprises a glass substrate, a heating area is arranged on the glass substrate, a heating film, a positive electrode and a negative electrode are deposited on one surface of the glass substrate, the heating film is arranged in the heating area, and the positive electrode and the negative electrode are arranged outside the heating area and are connected with the heating film. A plurality of atomization through holes are formed in the glass substrate and the heating film in the heating area in a penetrating manner; the heating film is installed on the atomization liquid bin side. According to the heating atomization device, the glass substrate is arranged, and the heating film is installed on the atomization liquid bin side; the heat conductivity coefficient of the glass substrate is 0.5-1.0 w / m.k, and the heat conductivity is poor, so that the loss of heat after the heating film is heated can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of heating atomization chips, in particular to a heating atomization device for preventing heat loss. Background Art

[0002] The thin film heating element applied for in the present invention is mainly used in heating and atomization related products, such as electronic cigarettes, medical drug atomizers, etc.

[0003] The heated atomizer chip is the core component of the atomizer device. Its function is to heat the liquid and atomize it to form aerosol particles. With the fierce competition among electronic cigarette manufacturers, products are constantly updated, from the initial resistance wire atomizer core to the later porous ceramic atomizer core. Now many manufacturers are exploring the MEMS process to produce heated atomizer cores. Improving the heating performance of the heated atomizer core is what many manufacturers are pursuing.

[0004] At present, the heating atomizer core made by the existing MEMS process uses a silicon substrate, and the thermal conductivity of silicon is 150w / mk, which has excellent thermal conductivity and a fast heating rate. However, the heat loss is also fast, and the final heating rate and final temperature cannot achieve the best effect.

[0005] In view of the above-mentioned problem of heat loss, the present invention proposes a heating atomization core with a glass substrate, which reduces heat loss and improves the heating explosiveness and temperature of the heating atomization core by adding a metal reflective layer to the glass substrate. Utility Model Content

[0006] The utility model discloses a heating atomizing device for preventing heat loss, which is used to solve relevant technical problems in the background technology.

[0007] The technical solution provided by the utility model is as follows: a heating atomization device for preventing heat loss, comprising: a glass substrate, a heating area on the glass substrate, a heating film and positive and negative electrodes deposited on one side of the glass substrate, the heating film is in the heating area, the positive and negative electrodes are outside the heating area and connected to the heating film, a plurality of atomization through holes are penetrated through the glass substrate and the heating film in the heating area; the heating film is installed on the side of the atomization liquid tank.

[0008] In one embodiment, a reflective layer is provided on the other side of the glass substrate away from the heating film, and a plurality of atomizing through holes penetrate through the reflective layer.

[0009] In one embodiment, the reflective layer is a high temperature resistant metal layer with heat reflective properties, which is deposited on a glass substrate.

[0010] In one embodiment, the surface structure of the heating film is the same as the structure of the heating area.

[0011] In one embodiment, the surface structure of the heating film is smaller than the surface structure of the heating region.

[0012] In one embodiment, the reflective layer is a titanium layer or a tantalum layer.

[0013] In one embodiment, the positive and negative electrodes are on both sides of the heating film.

[0014] In one embodiment, the positive and negative electrodes are made of copper-aluminum alloy.

[0015] In one embodiment, the glass substrate is made of quartz glass.

[0016] In one embodiment, a silicon oxide protective layer is provided on the surface of the heating film.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The heating atomization device of the present invention is provided with a glass substrate and the heating film is installed on the side of the atomization liquid tank; the thermal conductivity coefficient of the glass substrate is 0.5-1.0w / mk, and the thermal conductivity is poor, which can effectively reduce the heat loss of the heating film after heating.

[0019] (2) The heating atomization device of the present invention provides a reflective layer on the glass substrate on the other side of the heating film to reflect and absorb thermal radiation, thereby reducing heat loss, improving thermal insulation and energy saving, and further improving the explosiveness of heating of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of the heating atomization device of the utility model;

[0021] Figure 2 It is a cross-sectional view of the heating atomizing device of the utility model;

[0022] Figure 3 It is a schematic diagram of an implementation of the heating film in the utility model.

[0023] The figure numbers are as follows: 1. glass substrate; 11. heating area; 2. heating film; 3. positive and negative electrodes; 4. atomization through hole; 5. reflection layer; 6. atomization liquid tank. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0025] Example 1

[0026] like Figure 1-3 As shown, the utility model is a heating atomization device for preventing heat loss, comprising: a glass substrate 1, a heating film 2, positive and negative electrodes 3, and an atomization through hole 4; the glass substrate 1 has a heating area 11, a heating film 2 and positive and negative electrodes 3 are deposited on one side of the glass substrate 1, the heating film 2 is in the heating area 11, and the positive and negative electrodes 3 are on both sides of the heating film 2 and connected to the heating film 2; a plurality of atomization through holes 4 are passed through the heating film 2 in the heating area 11 and the glass substrate 1; the heating film 2 is installed on the atomization liquid tank 6. After the positive and negative electrodes 3 are energized, the heating film 2 is heated, and the upward heat of the heating film 2 is blocked by the glass substrate 1; the heating film 2 can heat the smoke oil in the atomization liquid tank 6, and the smoke oil will still be heated and atomized when it passes through the atomization through hole 4 in the heating film 2 upward; the generated smoke oil aerosol passes through the atomization through hole 4 and is sucked away. The heating atomization device of this embodiment is provided with a glass substrate 1, and the heating film 2 is installed on the side of the atomization liquid tank 6; the glass substrate 1 is made of quartz glass, which has poor thermal conductivity and can effectively reduce the heat loss of the heating film after heating.

[0027] The heating film 2 of this embodiment is a molybdenum film or a tungsten film, and the heating resistance of the heating film 2 of this embodiment is 1Ω. In this embodiment, preferably, its surface shape and surface structure are the same as those of the heating area 11, and the heating area is square, and the heating film 2 is the same.

[0028] In one embodiment, the heating film 2 may be S-shaped, and the resistance may be adjusted by its surface area to achieve uniform temperature control.

[0029] The positive and negative electrodes 3 of this embodiment are made of copper-aluminum alloy.

[0030] Furthermore, a silicon oxide protective layer is provided on the surface of the heating film 2, which is used to protect the heating film 2 and other parts, and prevent chemical reactions caused by high temperature from affecting resistance changes and affecting human health.

[0031] The working principle of Example 1: after the positive and negative electrodes 3 are energized, the heating film 2 is heated, and the upward heat of the heating film 2 is blocked by the glass substrate 1; the heating film 2 can heat the tobacco oil in the atomizing liquid tank 6, and the tobacco oil will still be heated and atomized when passing through the atomizing through hole 4 in the heating film 2 upward; the generated tobacco oil aerosol is sucked away after passing through the atomizing through hole 4.

[0032] Example 2

[0033] Embodiment 2 is based on Embodiment 1. A reflective layer 5 is provided on the other side away from the heating film 2 to reflect and absorb thermal radiation, thereby reducing heat loss, improving thermal insulation and energy saving, and further improving the heating explosiveness of the device.

[0034] The reflective layer 5 of this embodiment is a high temperature resistant metal layer with heat reflective performance, which is deposited on the glass substrate 1 by magnetron sputtering PVD or ion beam sputtering deposition IBD equipment. Specifically, the reflective layer 5 is a metal layer such as titanium and tantalum, which is deposited on the glass substrate 1 by magnetron sputtering PVD or ion beam sputtering deposition IBD equipment. The reflective properties of the metal film are used to reflect the thermal radiation back. The reflective layer 5 can reflect most of the thermal radiation and absorb part of the thermal radiation. When the heating film 2 is powered on, a large amount of heat is generated, and the radiant heat is reflected back by the metal reflective layer 5 through the glass substrate 1, achieving a heat preservation effect, thereby achieving a higher temperature and better explosiveness.

[0035] Working principle of Example 2: After the positive and negative electrodes 3 are energized, the heating film 2 is heated, the upward heat of the heating film 2 is blocked by the glass substrate 1, and the radiant heat passing through the glass substrate 1 is reflected back by the reflective layer 5; the heating film 2 can heat the tobacco oil in the atomizing liquid tank 6, and the tobacco oil will still be heated and atomized when passing through the atomizing through hole 4 in the heating film 2 upward; the atomized tobacco oil continues to be sucked out through the atomizing through hole 4.

[0036] The specific process is as follows:

[0037] S1. A glass sheet is selected as a substrate with a thickness of 300-500 μm, and a through-hole 4 is formed through the atomized through hole 4 in the heating region 11 of the glass substrate 1 by a laser-induced wet etching process;

[0038] S2. IBD ion beam deposition coating process, a metal reflective layer 5 is plated on the back of the glass substrate 1 to reflect radiant heat and keep warm;

[0039] S3. A heating film 2 and positive and negative electrodes 3 are deposited on the front of the glass substrate 1 respectively; the heating film 2 is made of metal molybdenum / tungsten with a thickness of 0.01-1.5um, and the positive and negative electrodes 3 are made of copper / copper-aluminum alloy with a thickness of 1.0-2.0μm; after each coating, a photolithography process and a dry etching process are required to remove the excess parts to obtain the designed pattern;

[0040] S4. Through the LPCVD process, a silicon oxide protective layer is deposited on the surface of the heating film 2, and the thickness of the layer is 0.05 μm-1 μm.

[0041] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0042] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. 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 atomization device for preventing heat loss, characterized in that: include: A glass substrate (1), wherein the glass substrate (1) has a heating area (11), a heating film (2) and positive and negative electrodes (3) are deposited on one side of the glass substrate (1), the heating film (2) is within the heating area (11), the positive and negative electrodes (3) are outside the heating area (11) and connected to the heating film (2), and a plurality of atomizing through holes (4) are penetrated through the glass substrate (1) and the heating film (2) within the heating area (11); the heating film (2) is installed on the side of an atomizing liquid tank (6); A reflective layer (5) is provided on the other side of the glass substrate (1) away from the heating film (2), and a plurality of atomizing through holes (4) penetrate through the reflective layer (5).

2. A heating atomization device for preventing heat loss as claimed in claim 1, characterized in that: The reflective layer (5) is a high temperature resistant metal layer with heat reflective properties, and is deposited on the glass substrate (1).

3. A heating atomization device for preventing heat loss as claimed in claim 1, characterized in that: The surface structure of the heating film (2) is the same as the structure of the heating area (11).

4. A heating atomization device for preventing heat loss as claimed in claim 1, characterized in that: The surface structure of the heating film (2) is smaller than the surface structure of the heating area (11).

5. A heating atomization device for preventing heat loss as claimed in claim 1, characterized in that: The reflective layer (5) is a titanium layer or a tantalum layer.

6. A heating atomization device for preventing heat loss as claimed in claim 1, characterized in that: The positive and negative electrodes (3) are located on both sides of the heating film (2).

7. A heating atomizing device for preventing heat loss as claimed in claim 1, characterized in that: The positive and negative electrodes (3) are made of copper-aluminum alloy.

8. A heating atomization device for preventing heat loss as claimed in claim 1, characterized in that: The glass substrate (1) is made of quartz glass and has a thermal conductivity of 0.5-1.0 W / mk.

9. A heating atomizing device for preventing heat loss as claimed in claim 1, characterized in that: A silicon oxide protective layer is provided on the surface of the heating film (2).

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