Partitioned heating type low-temperature smoking set heating body

Abstract

The application discloses a kind of interval partition heating type low-temperature smoking set heating body, including inner ceramic substrate and outer ceramic substrate, the inner ceramic substrate is printed on using silk printing process and forms first heating zone and second heating zone by printing heating wire, the outer ceramic substrate is printed on using silk printing process and forms first temperature sensing zone and second temperature sensing zone by printing temperature sensing wire, first interval zone is formed between the first heating zone and second heating zone.The low-temperature smoking set heating body of the application, by setting first interval zone, reduce the superposition of the heat of two heating zones, solve the problem of smoke quantity mutation when smoking, ensure the uniformity of each puff of smoke and aroma when smoking, effectively improve the smoking experience.

Description

Technical Field

[0001] This invention belongs to the field of low-temperature baking smoke set technology, and in particular relates to a low-temperature smoke set heating element with interval zone heating. Background Technology

[0002] Electronic cigarette devices on the market mainly fall into two categories: one type heats e-liquid or paste mixtures through an atomizer to create vapor that can be inhaled; the other type heats tobacco materials at around 200 degrees Celsius (without burning) through a heating element to create vapor that can be inhaled. Compared to traditional cigarettes, low-temperature cigarettes produce significantly fewer harmful substances during use and offer a more realistic smoking experience. They have a very significant positive effect on quitting smoking and reducing secondhand smoke pollution.

[0003] Common low-temperature smoking appliance heating elements, such as Figure 1 and Figure 2 As shown, it typically includes an inner ceramic substrate 1 and an outer ceramic substrate 2 stacked together. A heating wire is printed on the inner ceramic substrate 1 using a conductive paste with low sheet resistance and fast heating using a screen printing process to form a heating zone for heating the cigarette (typically including a first heating zone 3 and a second heating zone 4). A temperature sensing wire is printed on the outer ceramic substrate 2 using a conductive paste with high sheet resistance using a screen printing process to form a temperature sensing zone for temperature sensing and monitoring (typically including a first temperature sensing zone 5 and a second temperature sensing zone 6).

[0004] Existing low-temperature smoke appliance heating elements have the following drawbacks:

[0005] 1. For example Figure 1 As shown, the area of ​​the first heating zone 3 accounts for a large proportion of the total area of ​​the heating zone (usually 30%), and the volume of the heated tobacco accounts for 30% of the total tobacco volume. When the power is constant, the first puff takes 35-40 seconds to produce smoke, and the amount of smoke is relatively small. The waiting time is too long, resulting in a poor smoking experience.

[0006] 2. For example Figure 1 As shown, there is no gap between the first heating zone 3 and the second heating zone 4. When the first heating zone stops working and the second heating zone starts working, the heat from the two heating zones is superimposed, resulting in a noticeable increase in the amount of smoke when inhaling, and even a burning sensation on the lips. However, the smoke flavor immediately becomes weaker and less intense. The general requirement for each cigarette is 10-12 puffs. This layout leads to a significant decrease in the amount of smoke and aroma when inhaling the last few puffs, resulting in a poor consistency in the inhalation experience.

[0007] 3. Tobacco is composed of many different components, and each component requires a different temperature to volatilize into gas. Therefore, different temperature fields are required in the heating element. For example, tobacco components that volatilize at 150℃ should have a temperature field of 150℃, and tobacco components that volatilize at 200℃ should have a temperature field of 200℃. Although the partitioned design of the first heating zone and the second heating zone has a certain high and low temperature fields, they are not obvious. The volatilization of various tobacco components is not ideal, and the aroma is not well expressed.

[0008] 4. For example Figure 2 As shown, the temperature sensing electrode 10 is arranged above the first temperature sensing area 5. When the inner ceramic substrate and the outer ceramic substrate are stacked, the overlapping area of ​​the first temperature sensing area and the first heating area is too small, which reduces the reliability of its sensing of the temperature of the first heating area, affects the timeliness and accuracy of temperature control, and thus affects the suction experience. Summary of the Invention

[0009] In view of this, the purpose of the present invention is to provide a low-temperature smoking appliance heating element with intermittent zone heating in order to improve the smoking experience.

[0010] The present invention solves the above problems through the following technical means:

[0011] A low-temperature smoking appliance heating element with intermittent zone heating includes an inner ceramic substrate and an outer ceramic substrate. The inner ceramic substrate is printed with heating wires using a screen printing process to form a first heating zone and a second heating zone. The outer ceramic substrate is printed with temperature-sensing wires using a screen printing process to form a first temperature-sensing zone and a second temperature-sensing zone. A first interval zone is formed between the first heating zone and the second heating zone.

[0012] Furthermore, a second interval zone is formed within the second heating zone.

[0013] Furthermore, a temperature-sensing electrode is disposed on the outer ceramic substrate, and the temperature-sensing electrode is disposed below the first temperature-sensing zone.

[0014] Furthermore, the heating wire in the second heating zone extends from one side of the inner ceramic substrate to one side of the first heating zone to form a heat compensation zone.

[0015] Furthermore, the area of ​​the first heating zone accounts for 15%-25% of the total heating zone area.

[0016] Furthermore, the area of ​​the first gap region accounts for 8-10% of the total area of ​​the inner ceramic substrate.

[0017] Furthermore, two second interval zones are formed within the second heating zone.

[0018] Furthermore, the area of ​​the second spacer region accounts for 3-5% of the total area of ​​the inner ceramic substrate.

[0019] The beneficial effects of this invention: The low-temperature smoking device heating element of this invention, with its interval-zone heating, includes an inner ceramic substrate and an outer ceramic substrate. Heating wires are screen-printed on the inner ceramic substrate to form a first heating zone and a second heating zone. Temperature-sensing wires are screen-printed on the outer ceramic substrate to form a first temperature-sensing zone and a second temperature-sensing zone. A first interval zone is formed between the first heating zone and the second heating zone. This low-temperature smoking device heating element, by setting the first interval zone, reduces the superposition of heat between the two heating zones, solves the problem of sudden changes in smoke volume during inhalation, ensures the uniformity of smoke and aroma with each puff, and effectively improves the smoking experience. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the heating zone layout in existing technology;

[0022] Figure 2 This is a schematic diagram of the arrangement of the temperature sensing zone in existing technology;

[0023] Figure 3 This is a schematic diagram of the arrangement of the heating zone in this invention;

[0024] Figure 4 This is a schematic diagram of the arrangement of the temperature sensing zone of the present invention;

[0025] Figure 5 This is a schematic diagram of the inner ceramic substrate and the outer ceramic substrate before they overlap in this invention;

[0026] Figure 6 This is a schematic diagram of the inner ceramic substrate and the outer ceramic substrate of the present invention after they are overlapped;

[0027] Figure 7 This is a schematic diagram of the winding process after the inner ceramic substrate and the outer ceramic substrate overlap;

[0028] Figure 8 This is a schematic diagram of a molding heating element;

[0029] Figure 9 This is a schematic diagram of the application of the heating element. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings.

[0031] like Figure 2-6As shown, this embodiment discloses a low-temperature smoking device with intermittent zone heating, comprising an inner ceramic substrate 1 and an outer ceramic substrate 2. Heating wires are screen-printed on the inner ceramic substrate 1 to form a first heating zone 3 and a second heating zone 4. Temperature-sensing wires are screen-printed on the outer ceramic substrate 2 to form a first temperature-sensing zone 5 and a second temperature-sensing zone 6. A first interval zone 7 is formed between the first heating zone 3 and the second heating zone 4, and the area of ​​the first interval zone 7 accounts for 8-10% of the total area of ​​the inner ceramic substrate. By setting the first interval zone 7, the heat superposition between the two heating zones is reduced, solving the problem of sudden changes in smoke volume during inhalation, ensuring the uniformity of smoke and aroma with each puff, and effectively improving the smoking experience.

[0032] Two second interval zones 8 are formed within the second heating zone 4, and the area of ​​the second interval zone 8 accounts for 3-5% of the total area of ​​the inner ceramic substrate. By setting the second interval zone, the entire heating element can form a high and low temperature field with a relatively large temperature difference, which greatly improves the aroma performance and consistency of the cigarette when smoking.

[0033] A temperature-sensing electrode 10 and a heating electrode are disposed on the outer ceramic substrate 2. The temperature-sensing electrode and the heating electrode are electrically connected to a temperature-sensing wire and a heating wire, respectively. The temperature-sensing electrode 10 is located below the first temperature-sensing zone 5. This structural design moves the first temperature-sensing zone upward. When the inner and outer ceramic substrates are stacked, the overlapping area between the first temperature-sensing zone and the first heating zone is increased. This improves the reliability of sensing the temperature of the first heating zone, enhances the timeliness and accuracy of temperature control, and further improves the suction experience.

[0034] The heating wire of the second heating zone 4 extends from one side of the inner ceramic substrate to one side of the first heating zone 3 to form a supplementary heating zone 9. After the first heating zone finishes working, it is turned off, and the second heating zone starts working. The supplementary heating zone keeps the tobacco at a relatively high temperature after the first heating zone stops working, which helps to improve the stability of the smoking process.

[0035] The area of ​​the first heating zone 3 accounts for 15%-25% of the total heating zone area; preferably, the area of ​​the first heating zone 3 accounts for 20% of the total heating zone area, and the corresponding heated tobacco volume accounts for 20% of the total tobacco volume. When the power is constant, the smoke output time of the first puff becomes 25-35 seconds, the amount of smoke increases, and the smoking experience improves.

[0036] In specific processing, heating zones are formed by screen printing heating wires onto the inner ceramic substrate 1 using a conductive paste with low sheet resistance and fast heating speed, and temperature-sensing zones are formed by screen printing temperature-sensing wires onto the outer ceramic substrate 2 using a conductive paste with high sheet resistance. Figure 6 As shown, the inner ceramic substrate 1 and the outer ceramic substrate 2 are stacked together, and then subjected to the following process: Figure 7 The winding operation shown; as Figure 8 As shown, the material is rolled into a tubular shape with small, protruding semicircles, placed in an isostatic press for isostatic pressing to fuse the two layers together, and then sintered to form a ceramic heating element with a certain strength. In practical applications, such as... Figure 9 As shown, the cigarette 11 can be inserted into the cavity of the heating element for heating.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A low-temperature smoking appliance heating element with intermittent zone heating, comprising an inner ceramic substrate (1) and an outer ceramic substrate (2), wherein heating wires are printed on the inner ceramic substrate (1) to form a first heating zone (3) and a second heating zone (4) using a screen printing process, and temperature-sensing wires are printed on the outer ceramic substrate (2) to form a first temperature-sensing zone (5) and a second temperature-sensing zone (6), characterized in that: A first interval region (7) is formed between the first heating zone (3) and the second heating zone (4); the area of ​​the first interval region (7) accounts for 8-10% of the total area of ​​the inner ceramic substrate; two second interval regions (8) are formed in the second heating zone (4), and the second interval regions (8) account for 3-5% of the total area of ​​the inner ceramic substrate.

2. The interval-zone heating type low-temperature smoke appliance heating element according to claim 1, characterized in that: A temperature-sensing electrode (10) is provided on the outer ceramic substrate (2), and the temperature-sensing electrode (10) is located below the first temperature-sensing zone (5).

3. The interval-zone heating type low-temperature smoke appliance heating element according to claim 2, characterized in that: The heating wire of the second heating zone (4) extends from one side of the inner ceramic substrate (1) to one side of the first heating zone (3) to form a heat compensation zone (9).

4. The interval-zone heating type low-temperature smoke appliance heating element according to claim 3, characterized in that: The area of ​​the first heating zone (3) accounts for 15%-25% of the total heating zone area.

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