WO2023010998A1 - Electric heating assembly and electric heating device - Google Patents

Abstract

An electric heating assembly (100) and an electric heating device (300). An electric heating assembly (100) comprises an accommodating body (11), a wrapping film (12), a heating circuit (13), and an external pin group (14); the accommodating body (11) has an accommodating cavity (113) for accommodating a substance to be heated; the wrapping film (12) wraps the outer surface of the accommodating body (11); the heating circuit (13) is provided between the accommodating body (11) and the wrapping film (12), and is used for heating in energizing so as to heat the substance to be heated; and the external pin group (14) is provided on the surface of the wrapping film (12) away from the accommodating body (11), is electrically connected to the heating circuit (13), and is electrically connected to a power source assembly (200). The electric heating assembly (100) can achieve lead-free connection between the electric heating assembly (100) and the power source assembly (200), such that the disassembly process between the electric heating assembly (100) and the power source assembly (200) is relatively simple, thereby facilitating the cleaning of the electric heating assembly (100), and greatly reducing the influence, due to poor cleaning, on the heating taste of the substance to be heated subsequently.

Description

An electric heating component and an electric heating device

Cross References to Related Applications

This application claims its priority based on the Chinese patent application 202121812610.3 submitted on August 4, 2021, and its entire description is incorporated herein by reference.

【Technical field】

The present application relates to the technical field of electronic heating, in particular to an electric heating assembly and an electric heating device.

【Background technique】

The electric heating device is a device used to heat and atomize the substance to be heated when it is energized, and it is widely used in medical treatment, electronic atomization and other technical fields.

At present, the electric heating device generally includes an electric heating component and a power supply component; wherein, the electric heating component is used to accommodate the substance to be heated, so as to heat the substance to be heated when electrified; wherein, the substance to be heated can be flowers and leaves, herbs substance, or its paste extract; the electric heating assembly can be a heating pot; in a specific embodiment, the electric heating assembly is connected to the circuit board in the power supply assembly through a lead wire, so as to supply power to the electric heating assembly through the power supply assembly.

However, the electric heating assembly is connected to the power supply assembly through lead wires, which makes the disassembly process between the electric heating assembly and the power supply assembly relatively cumbersome, which makes it difficult to clean the electric heating assembly, thereby affecting the subsequent heating taste of the substance to be heated.

【Content of invention】

The application provides an electric heating assembly and an electric heating device. The electric heating assembly can solve the cumbersome disassembly process between the existing electric heating assembly and the power supply assembly, which makes it difficult to clean the electric heating assembly and affects subsequent treatment. The problem of the heated taste of the heated substance.

In order to solve the above technical problems, a technical solution adopted by the present application is to provide an electric heating assembly. The electric heating assembly includes a housing body, a wrapping film, a heating circuit and an external pin group; wherein, the housing body has a storage chamber for storing materials to be heated; the packaging film is wrapped on the outer surface of the housing body; the heating circuit surrounds the housing The body is set, and is located between the storage body and the wrapping film; the heating circuit is used to generate heat when energized to heat the substance to be heated; the external pin group is arranged on the surface of the wrapping film away from the storage body, and is electrically connected to the heating circuit for Electrically connected to the power supply assembly.

Wherein, the wrapping film has a through hole, and the external pin group is electrically connected with the heating circuit through the through hole.

Wherein, the heating circuit is formed on the surface of the wrapping film close to the container, and is wrapped on the outer surface of the container together with the wrapping film.

Wherein, the wrapping film includes a first wrapping part and a second wrapping part; wherein, the first wrapping part is wrapped on the side wall of the container; the second wrapping part is connected with the first wrapping part and wrapped on the bottom wall of the container ; The external pins are arranged on the surface of the second wrapping part away from the containing body.

Wherein, the heating circuit includes a side wall heating circuit and/or a bottom wall heating circuit; wherein, the side wall heating circuit is formed in the first wrapping part, and is used to heat the side wall of the container when energized; the bottom wall heating circuit is formed in the The second wrapping part is used for heating the bottom wall of the container when electrified.

Wherein, the external pin group includes a first external pin group, and the first external pin group communicates with at least one heating circuit; or, the external pin group includes a second external pin group; the first external pin group communicates with at least one heating circuit; The heating circuit on the side wall is connected, and the second external pin group is connected to the heating circuit on the bottom wall.

Wherein, the side wall heating circuit includes at least two independently arranged sub-heating circuits; the first external pin group includes a first pin and at least two second pins; wherein, the first pin and each sub-heating circuit The first end is connected; each of the at least two second pins is connected to the second end of a sub-heating circuit, and the at least two second pins are connected to at least two sub-heating circuits in one-to-one correspondence.

Wherein, the container is cylindrical; one of the first pin and at least two second pins is the center of a circle, and the other pins are rings concentric with the center of the circle; or the first pin and at least two second pins Both pins are concentric rings.

Wherein, an air intake hole is formed on the bottom wall of the container, and a vent hole communicating with the air intake hole is formed on the second wrapping part, and the vent hole is located in the gap between the first pin and at least two second pins. area.

Wherein, the first pins and/or the second pins are arranged in the shape of dots, strips or blocks, and the side wall of the receiving body is provided with a limiting part for setting the assembly position.

Wherein, the material of the container is metal or heat-conducting ceramics.

Wherein, an infrared layer is also included, which is arranged on the inner surface of the container.

Wherein, the material of the wrapping film is heat-insulating ceramic or glass material.

Wherein, the thermal conductivity of the container is not less than 10W/(m*K); and/or, the thermal conductivity of the wrapping film is not greater than 5W/(m*K).

Wherein, the material of the container is quartz glass, and the electric heating component also includes an infrared layer, and the infrared layer is arranged between the container and the wrapping film.

The present application also provides an electric heating device, including an electric heating assembly and a power supply assembly; the electric heating assembly is used to accommodate the substance to be heated, and generates heat to heat the substance to be heated when energized; wherein, the electric heating assembly is any one of the above The electric heating component; the power supply component includes electrodes, and the electrodes are used to abut against the external pins of the electric heating component to connect the electric heating component with the power supply component.

The electric heating assembly and the electric heating device provided by the present application, the electric heating assembly is provided with a storage body, and a storage chamber is set on the storage body to store the substance to be heated through the storage body; at the same time, by setting a wrapping film and a heating circuit, and The wrapping film is wrapped on the outer surface of the container, and the heating circuit is arranged between the container and the wrapping film, so that the heating circuit generates heat and heats the substance to be heated when it is energized; in addition, by setting the external pin group and connecting the external lead The foot group is arranged on the surface of the wrapping film away from the container, and is electrically connected to the heating circuit, so that the heating circuit can be led out to the surface of the wrapping film on the side away from the container through the external pin group, so that the electric heating component can pass through the external connection pin group. The pin group is electrically connected to the power supply component, so that the lead-free connection between the electric heating component and the power supply component can be realized, and the disassembly process between the electric heating component and the power supply component is relatively simple, thereby facilitating the cleaning of the electric heating component , which greatly reduces the influence of poor cleaning on the taste of subsequent heated substances.

【Description of drawings】

Fig. 1 is a schematic structural diagram of an electric heating device provided by an embodiment of the present application;

Fig. 2 is a schematic structural view of the first embodiment of the electric heating assembly provided by the present application;

Fig. 3 is a structural schematic diagram of the structure shown in Fig. 2 under another vision;

Fig. 4 is a structural schematic diagram after the wrapping film of the structure shown in Fig. 2 is expanded;

Figure 5 is a perspective view of the structure shown in Figure 2;

Fig. 6 is a schematic view of the structure shown in Fig. 2 after the wrapping film is removed;

Fig. 7 is a schematic structural view of the second embodiment of the electric heating assembly provided by the present application;

Fig. 8 is a structural schematic view of the unfolded wrapping film with the structure shown in Fig. 7 .

【Detailed ways】

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawings) , sports conditions, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

Please refer to Fig. 1, Fig. 1 is a schematic structural diagram of the electric heating device provided by the present application; in this embodiment, an electric heating device 300 is provided; the electric heating device 300 is used to heat and mist It can be used in different fields, such as medical, agricultural or atomization fields. Specifically, the electric heating device 300 includes an electric heating assembly 100 and a power supply assembly 200.

Among them, the electric heating component 100 is used to accommodate the substance to be heated, and generate heat to heat the substance to be heated when energized; specifically, the substance to be heated can be flowers and leaves, herbal substances, or their paste extracts, the electric heating component 100 can be a heating pot or a heating cartridge. In a specific embodiment, the specific structure and function of the electric heating assembly 100 can refer to the structure and function of the electric heating assembly 100 involved in any of the following embodiments, and can achieve the same or similar technical effects, and details can be found below.

The power supply assembly 200 is provided with electrodes 201 , and the electrodes 201 are used to connect with the electric heating assembly 100 to electrically connect the power supply assembly 200 with the electric heating assembly 100 , so as to supply power to the electric heating assembly 100 through the power supply assembly 200 . In a specific embodiment, the electric heating assembly 100 abuts against the electrode 201 of the power supply assembly 200 to realize the electrical connection between the two; it can be understood that when the electric heating assembly 100 needs to be cleaned or replaced, only the electric heating assembly The assembly 100 pulls out the power supply assembly 200, and the electric heating assembly 100 is separated from the electrode 201 to realize the disassembly between the electric heating assembly 100 and the power supply assembly 200, compared with the scheme of connecting the power supply assembly 200 and the electric heating assembly 100 through lead wires , can realize the leadless connection between the electric heating assembly 100 and the power supply assembly 200, so that the disassembly process between the electric heating assembly 100 and the power supply assembly 200 is relatively simple, and then it is convenient to clean the electric heating assembly 100, greatly reducing the The impact of poor cleaning on the taste of subsequent heated substances. It can be understood that the electrode 201 can also be replaced by other electrode forms such as metal domes, metal contacts, etc., as long as it can abut against the electric heating assembly 100 to achieve a detachable connection.

Specifically, the power supply assembly 200 also includes other electronic components such as a housing 202, a circuit board 203, and an electric core 204; wherein, the electric core is connected to the electrode 201 through the circuit board, and the user can control the circuit board according to actual needs, select To provide power to the electric heating assembly 100.

Please refer to Figures 2 to 6, wherein Figure 2 is a schematic structural view of the first embodiment of the electric heating assembly provided by the present application; Figure 3 is a structural schematic view of the structure shown in Figure 2 under another view; Figure 4 is a schematic view of Figure 5 is a perspective view of the structure shown in Figure 2; Figure 6 is a schematic view of the structure shown in Figure 2 after removing the wrapping film.

In this embodiment, an electric heating assembly 100 is provided, and the electric heating assembly 100 includes a housing body 11 , a wrapping film 12 , a heating line 13 and an external pin group 14 . Wherein, the wrapping film 12 is wrapped on the outside of the container 11; the heating circuit 13 is located between the container 11 and the wrapping film 12, so as to utilize the wrapping film 12 to protect the heating circuit 13 from outside air, water vapor and the substance to be heated during the heating process The impact of pollutants etc. produced; the external pin group 14 is arranged on the side surface of the wrapping film 12 away from the container 11, and is electrically connected with the heating circuit 13, so that the heating circuit 13 is drawn out to the wrapping film through the external pin group 14 12 on the side surface away from the housing 11, so that the electric heating assembly 100 is electrically connected to the power supply assembly 200 through the external pin group 14, so that the disassembly process between the electric heating assembly 100 and the power supply assembly 200 is relatively simple, and further It is convenient to clean the electric heating assembly 100 , which greatly reduces the impact on the taste of the substance to be heated subsequently due to poor cleaning.

Among them, as shown in FIG. 3 , the container 11 has side walls 111 and a bottom wall 112 . The side wall 111 of the receiving body 11 is arranged in a ring and surrounds the bottom wall 112 to form a receiving chamber 113, and the receiving chamber 113 is used for receiving the substance to be heated. In a specific embodiment, when the electric heating assembly 100 is used to heat flowers, leaves, herbs, etc., the bottom wall 112 of the container 11 can be provided with at least two evenly distributed air inlets 15, so that The outside air enters the storage cavity 113 through the air inlet 15 , thereby increasing the heating effect, and taking the atomized substance to be heated out of the storage cavity 113 . In other embodiments, when the electric heating assembly 100 is used to heat the paste-like extracts of flowers, leaves and herbs to be heated, the bottom wall 112 of the container 11 is not provided with an air inlet 15 to prevent the paste from The substance to be heated flows out from the air inlet 15 on the bottom wall 112 of the container 11 after being heated to a liquid state; in this embodiment, the air inlet 15 can be provided on the side wall 111 of the container 11 .

Specifically, the material of the housing body 11 can be metal or heat-conducting ceramics to increase the temperature conducted to the inner wall of the housing body 11; specifically, the material of the housing body 11 can be stainless steel, copper alloy or aluminum alloy with high thermal conductivity or ceramics with high thermal conductivity such as alumina, silicon carbide, aluminum nitride or silicon nitride; The uniformity of the temperature field of the container 11 is improved. Specifically, the thermal conductivity of the container 11 is not less than 10W/(m*K).

In a specific embodiment, the receiving body 11 may be in the shape of a hollow cylinder, with one end being an open end and the other end being a closed end; the inside of the receiving body 11 forms a receiving chamber 113 . Specifically, the container 11 includes a cylindrical annular side wall 111 and a circular bottom wall 112 .

In a specific embodiment, the side wall 111 of the receiving body 11 is also provided with a limit portion (not shown) that is adapted to the assembly position, and the electric heating assembly 100 is specifically assembled with the power supply assembly 200 through the limit portion, so as to Realize the connection between the two. The wrapping film 12 is wrapped on the outer surface of the receiving body 11; specifically, the material of the wrapping film 12 can be heat-insulating ceramic or glass material, so that the wrapping film 12 has a better heat insulation effect, thereby reducing the heat dissipation of the electric heating assembly 100. The heat from the outside can improve the energy utilization rate and reduce the temperature of the outer surface of the electric heating component 100, thereby effectively improving the thermal stability of the electric heating component 100, and at the same time, the user experience is better. Specifically, the thermal conductivity of the wrapping film 12 is not greater than 5W/(m*K).

Wherein, the wrapping film 12 can specifically be a BaO-Al ₂ O ₃ -SiO ₂ system heat-insulating ceramic, or a system in which CaO is used to replace part of BaO, and this system can be well matched with the 430 stainless steel substrate. In one embodiment, the components of the BaO-Al ₂ O ₃ -SiO ₂ system thermal insulation ceramics may specifically include: 50% BaO, 15% Al ₂ O ₃ , 22% SiO ₂ , 3.5% ZrO ₂ , 1.5% TiO ₂ , 1.3% Na ₂ O, 1.3% CaO, 1% MgO, 3% B ₂ O ₃ , 1.4% Co ₂ O ₃ ; in this example, the crystallization peak temperature of the thermal insulation ceramics in this system is about 850°C , The coefficient of thermal expansion is about 10.1ppm/℃. In another example, the components of the BaO-Al ₂ O ₃ -SiO ₂ system may specifically include: 53% BaO, 14% Al ₂ O ₃ , 24% SiO ₂ , 1.8% ZrO ₂ , 2% TiO ₂ , 1.3% K ₂ O, 1.0% Na ₂ O, 0.5% CaO, 1% MgO, 1.4% Co ₂ O ₃ ; in this embodiment, the crystallization peak temperature of the thermal insulation ceramics in this system is about 860°C, and the thermal expansion coefficient is about 10.6ppm/°C. The specific implementation manner can be selected according to actual needs, and is not limited here.

The heating circuit 13 is arranged around the container 11, and the heating circuit 13 is used to generate heat to heat the substance to be heated when energized; in a specific embodiment, as shown in FIG. One side surface is formed on the side surface of the wrapping film 12 facing the container 11 by, for example, screen printing. Alternatively, the heating circuit 13 may also be formed on the outer surface of the container 11 by screen printing.

The external pin group 14 can be a pad, and the shape of the pad is not limited, and it can be a sheet, a strip, a ring, etc., such as a disc, an S-shape, a ring, and the like. In a specific embodiment, a through hole (not shown) is opened on the wrapping film 12, and the through hole is filled with a conductive material to form a conductive through hole; the external pin group 14 is specifically electrically connected to the heating circuit 13 through the conductive through hole. Connection; Wherein, the through hole can be provided at any place of the wrapping film 12, as long as the external pin group 14 can be electrically connected with the heating circuit 13 through the through hole. Preferably, the through hole is located in the area where the external pin group 14 covers the wrapping film 12; the conductive material can be silver paste or metal, such as silver, copper or aluminum.

Of course, in other embodiments, the external pin group 14 can also be connected to the heating circuit 13 through a wire passing through the through hole, and this application does not limit this, as long as it does not affect the electric heating component 100 and the power supply component 200. Can be disassembled in between.

In the electric heating assembly 100 provided in this embodiment, a storage body 11 is provided, and a storage chamber 113 is provided on the storage body 11 to accommodate the substance to be heated through the storage body 11; at the same time, by setting the wrapping film 12 and the heating circuit 13, and The wrapping film 12 is wrapped on the outer surface of the container 11, and the heating circuit 13 is arranged between the container 11 and the wrapping film 12, so that the heating circuit 13 generates heat and heats the substance to be heated when energized; in addition, by setting the external pin group 14, and the external pin group 14 is arranged on the surface of the wrapping film 12 away from the receiving body 11, and is electrically connected with the heating circuit 13, so that the heating circuit 13 is drawn out to the wrapping film 12 away from the receiving body through the external pin group 14 11, so that the electric heating assembly 100 is electrically connected to the power supply assembly 200 through the external pin group 14, so that the leadless connection between the electric heating assembly 100 and the power supply assembly 200 can be realized, so that the electric heating assembly The disassembly process between 100 and the power supply assembly 200 is relatively simple, which facilitates cleaning of the electric heating assembly, and greatly reduces the influence of poor cleaning on the subsequent heating taste of the substance to be heated.

In one embodiment, as shown in FIGS. 1-4 , the wrapping film 12 includes a first wrapping part 121 and a second wrapping part 122 . Wherein, the first wrapping part 121 is wrapped on the side wall 111 of the container 11; the second wrapping part 122 is connected with the first wrapping part 121 and wrapped on the bottom wall 112 of the container 11; the external pin group 14 is specifically set On the surface of the second wrapping part 122 away from the receiving body 11, it is convenient to abut against the electrodes 201 on the power supply assembly 200 to realize effective electrical connection between the two; of course, the external pin group 14 can also be arranged on the first wrapping part 121 The application does not limit the surface on the side away from the receiving body 11 , as long as it can be electrically connected to the electrode 201 of the power supply assembly 200 through contact.

Specifically, the first wrapping part 121 can choose to wrap all the side walls 111 or part of the side walls 111 of the storage body 11 according to actual needs; Other positions where the external pin group 14 is set may not wrap the second wrapping portion 122 (see Fig. 7 and Fig. 8 below), so as to reduce the production cost and improve the air intake 15 on the bottom wall of the receiving body 11. Air circulation. Of course, the second wrapping portion 122 can also wrap the entire bottom wall of the container 11 . In one embodiment, the first wrapping portion 121 is rectangular and disposed around the cylindrical sidewall 111 of the container 11 , and the second wrapping portion 122 is circular and disposed on the circular bottom wall 112 of the container 11 .

In one embodiment, as shown in FIG. 4 , the heating circuit 13 includes at least one of a side wall heating circuit 131 and a bottom wall heating circuit (not shown). Wherein, the side wall heating circuit 131 is formed on the first wrapping part 121, and the side wall heating circuit 131 is used to heat the side wall 111 of the storage body 11 when energized; specifically, the side wall heating circuit 131 can spread throughout the entire storage body The side wall 111 of 11; the bottom wall heating circuit is formed in the second wrapping part 122, which is used to heat the bottom wall 112 of the storage body 11 when energized; specifically, the bottom wall heating circuit can spread throughout the entire bottom wall of the storage body 11 112 inner surface. In other embodiments, the heating circuit may also only include the sidewall heating circuit 131 , which is only used to heat the sidewall 111 of the container 11 .

Specifically, the side wall heating circuit 131 and/or the bottom wall heating circuit can be in the form of a sheet, covering the entire surface of the container 11; the side wall heating circuit 131 and/or the bottom wall heating circuit can also be grid-shaped, such as multiple Long strips connected in parallel.

In one embodiment, the side wall heating circuit 131 and the bottom wall heating circuit supply power through the same external pin group 14, so as to control the side wall heating circuit 131 and the bottom wall heating circuit to generate heat at the same time through the same external pin group 14 , so as to simultaneously heat the bottom wall 112 and the side wall 111 of the container 11 . Specifically, the external pin group 14 can be a traditional two-point pad (refer to FIG. 7 and FIG. 8 below), which are positive pads and negative pads respectively. In this embodiment, a stopper or an alignment mark can be added on the power supply assembly 200, so that the installation and fixation of the two can be realized through the adaptation of the stopper on the power supply assembly 200 and the stopper on the electric heating assembly 100 , so that the electric heating assembly 100 is limited, so that the user can assemble and disassemble the electric heating assembly 100 according to a specific direction, so as to align with the electrodes 201 on the power supply assembly 200 and realize the electrical connection between the two. In a specific embodiment, a recess is provided on the bottom wall 112 of the receiving body 11 facing the power supply assembly 200, and the stopper can be a protrusion matching the recess. When the protrusion is embedded in the recess, the external pin group 14 and The electrodes 201 are aligned in abutment.

In a specific embodiment, the side wall heating circuit 131 and the bottom wall heating circuit are connected in series to form a series heating circuit. The other end is connected so as to connect the series heating circuit with the positive and negative electrodes of the power supply assembly 200 through the positive pad and the negative pad.

In another specific embodiment, the side wall heating circuit 131 and the bottom wall heating circuit are connected in parallel to form a parallel heating circuit, the positive electrode pad is specifically connected to one end of the parallel heating circuit, and the negative electrode pad is connected to the parallel heating circuit. The other end is connected to connect the parallel heating circuit with the positive and negative electrodes of the power supply assembly 200 through the positive electrode pad and the negative electrode pad.

In another embodiment, as shown in Figures 1 to 6, the side wall heating circuit 131 and the bottom wall heating circuit are arranged independently of each other, that is, the side wall heating circuit 131 and the bottom wall heating circuit can work independently; in one embodiment Among them, the external pin group 14 includes a first external pin group 141, and the first external pin group 141 communicates with at least one of the side wall heating circuit 131 and the bottom wall heating circuit respectively for power supply. In another embodiment, the external pin group 14 includes a first external pin group 141 and a second external pin group (not shown), and the side wall heating circuit 131 and the bottom wall heating circuit pass through the first external pin group respectively. Group 141 and the second external pin group are independently powered. Wherein, the first external pin group 141 communicates with the side wall heating circuit 131, and the side wall heating circuit 131 supplies power through the first external pin group 141; the second external pin group communicates with the bottom wall heating circuit, and the bottom wall heating circuit passes through The second external pin group supplies power. In this embodiment, the side wall heating circuit 131 and the bottom wall heating circuit are powered through different external pin groups, so that when the side wall 111 and the bottom wall 112 of the storage body 11 need to be heated at the same time, it can be controlled by the first The external pin group 141 and the second external pin group are energized at the same time, so that the side wall 111 and the bottom wall 112 of the container 11 can be heated at the same time; By controlling the first external pin group 141 to be energized and the second external pin group not to be energized, so that only the side wall heating circuit 131 generates heat, the side wall 111 of the storage body 11 can be heated independently; When the bottom wall 112 of the body 11 is heated, the second external pin group can be controlled to be energized, and the first external pin group 141 is not energized, so that only the heating circuit of the bottom wall generates heat, and the bottom of the storage body 11 can be realized. The wall 112 is heated separately, so that the electric heating assembly 100 can heat the side wall 111 and the bottom wall 112 of the container 11 at the same time, and can also heat the side wall 111 or the bottom wall 112 of the container 11 independently, Furthermore, the electric heating assembly 100 has higher temperature control flexibility and higher temperature field uniformity, and the heated taste of the substance to be heated is purer.

Wherein, the first external pin group 141 and the second external pin group respectively include positive external pins and negative external pins to be respectively connected to two ends of the corresponding heating circuit, so as to connect the corresponding heating circuit to the power supply assembly 200 electrical connection; of course, in other embodiments, the first external pin group 141 and the second external pin group can share an external pin, for example, share a positive external pin, or share a negative external pin; It is understood that, at this time, the first external pin group 141 and the second external pin group include three external pins.

In one embodiment, as shown in FIG. 4 to FIG. 6, in order to further improve the temperature control flexibility and the uniformity of the temperature field of the electric heating assembly 100, segmental heating can be carried out around the side wall 111 of the container 11, so as to The current temperature of each section of the storage body 11 is detected by a temperature sensor, and the heating power and heating time corresponding to each section are adjusted at any time according to the current temperature of each section of the storage body 11, so as to avoid excessive local temperature of the side wall 111 of the storage body 11. Too high or too low to affect the taste of heating or the problem that the temperature near the nozzle is too high occurs. For example, for the substance to be heated near the bottom wall 112 of the container 11, since the substance to be heated there can be heated simultaneously through the side wall 111 and the bottom wall 112 of the container 11, in order to prevent the substance to be heated there from The problem of being scorched occurs, and the heating power of the side wall heating circuit 131 near the bottom wall 112 of the container 11 can be adjusted to be lower than the heating power of the side wall heating circuit 131 at other positions, so that the heating power near the bottom of the container 11 The material to be heated at the wall 112 is heated at the same temperature as the material to be heated at other positions, which improves the heating uniformity of the material to be heated and enhances the taste of heating.

Specifically, the side wall heating circuit 131 includes at least two independently arranged sub-heating circuits 1311, that is, at least two sub-heating circuits 1311 can work independently. The first external pin group 141 includes a first pin 1411 and at least two second pins 1412, wherein the first pin 1411 is connected to the first end of each sub-heating circuit 1311 for connecting with the power supply assembly 200 One of the positive and negative electrodes is connected. Each second pin 1412 is respectively connected to the second end of one sub-heating circuit 1311 , and at least two second pins 1412 are connected to at least two sub-heating circuits 1311 in one-to-one correspondence. The second pin 1412 is used to communicate with the other electrode of the positive pole and the negative pole of the power supply assembly 200, that is, the first ends of at least two sub-heating circuits 1311 are connected to the same first pin 1411, and the at least two sub-heating circuits 1311 The second ends of the second terminals are respectively connected to at least two second pins 1412 in a one-to-one correspondence, so as to respectively supply power to each sub-heating circuit 1311 through the first pin 1411 and the at least two second pins 1412 . Wherein, the specific implementation of each sub-heating circuit 1311 heating at the same time and individually can refer to the above-mentioned about when the side wall heating circuit 131 and the bottom wall heating circuit supply power through the first external pin group 141 and the second external pin group respectively. The implementation of heating the wall heating circuit 131 and the bottom wall heating circuit at the same time or separately can achieve the same or similar technical effects, and will not be repeated here.

Wherein, the sub-heating circuit 1311 may include at least two series-connected heating units; or, the sub-heating circuit 1311 may also include at least two parallel-connected heating units. Referring to FIGS. 4-5 , at least two heating units are arranged in parallel and spaced apart. Wherein, each heating unit is a strip-shaped resistive film.

In some embodiments, the sub-heating circuits 1311 can be designed according to actual needs, for example, at least two sub-heating circuits 1311 can be arranged along the width direction of the housing body 11, or at least two sub-heating circuits 1311 can be arranged along the height direction of the housing body 11 The arrangement can also be arranged irregularly, as long as the effect of segmental heating can be achieved.

Specifically, in one embodiment, one of the first pin 1411 and at least two second pins 1412 is a circle, and the other pins are rings concentric with the circle. In one embodiment, the shape of the first pin 1411 is circular, and it is located at the center of the second wrapping part 122; arranged. By arranging the first pin 1411 and at least two second pins 1412 in a concentric circular shape, it is possible to make the electric heating assembly 100 abut against the electrode 201 on the power supply assembly 200, even if the electric heating assembly 100 is in the current Rotating the position at any angle along its circumferential direction can ensure the effective electrical connection between the pin and the electrode 201 , thereby realizing the non-directional and leadless assembly of the electric heating component 100 on the power supply component 200 .

Of course, in other embodiments, different from the above embodiments, one second pin 1412 is circular in shape, and the first pin 1411 and the other second pins 1412 are rings. It can be understood that the first pin 1411 and at least two second pins 1412 may also be concentric rings.

In another embodiment, see Fig. 7 and Fig. 8, wherein Fig. 7 is a schematic structural view of the second embodiment of the electric heating assembly provided by the present application; Fig. 8 is a structural schematic view of the unfolded wrapping film of the structure shown in Fig. 7 . The first pins 1411 and at least two second pins 1412 may also be distributed in a traditional dot-like strip or block shape. In this embodiment, reference may be made to the relevant descriptions in the foregoing embodiments for specific limiting manners, which will not be repeated here.

In a specific embodiment, referring to FIG. 3 and FIG. 4 , when an air inlet 15 is provided on the bottom wall 112 of the container 11 , a vent 151 communicating with the air inlet 15 is also formed on the second wrapping portion 122 ; Specifically, the air hole 151 is located in the gap area between the first pin 1411 and the second pin 1412 and in the gap area between two adjacent second pins 1412 . Or the air hole 151 is located in the gap area between the first pin 1411 and the second pin 1412 or in the gap area between two adjacent second pins 1412 , which is not limited here.

In a specific embodiment, the electric heating assembly 100 can also include an infrared layer; the infrared layer can be an infrared radiation layer, that is, the infrared layer can reflect energy, but cannot generate heat, and this embodiment is taken as an example below; of course, the The infrared layer can also be an infrared heating layer, that is, the infrared layer can generate heat to generate energy when electrified. It can be understood that, in this embodiment, the heating method of the electric heating component 100 is composite heating of resistance conduction and infrared heating.

In a specific embodiment, when the material of the housing body 11 is metal or heat-conducting ceramics with a thermal conductivity not less than 10W/(m*K), the infrared layer is coated on the inner surface of the housing body 11, that is, located in the housing chamber 113 In another specific embodiment, the material of the container 11 is quartz glass with low thermal conductivity and high transmittance, because the container 11 of quartz material has a higher pass rate to infrared rays, at this time, the infrared layer is coated on the outer surface of the container 11; the above-mentioned according to the different materials of the container 11, the infrared layer is coated on the inner surface or the outer surface of the container 11, which can improve the utilization rate of energy, fully heat the substance to be heated, and improve User experience. In the electric heating assembly 100 provided in this embodiment, the external pin group 14 on the electric heating assembly 100 is directly in contact with the electrodes 201 on the power supply assembly 200 to realize the electrical connection between the two, so that the electric heating assembly 100 and the power supply assembly 200 can Realize lead-free assembly, facilitate the disassembly and assembly of the electric heating assembly 100, easy to clean, and avoid the problem that the electric heating assembly 100 is repeatedly used and cannot be cleaned, which will affect the taste of subsequent heating; and after the electric heating assembly 100 is used many times, the consumer You can choose to discard the old electric heating assembly 100 directly, and replace it with a new electric heating assembly 100 to be assembled with the power supply assembly 200; meanwhile, the electric heating assembly 100 has high energy utilization rate, good temperature field uniformity, and flexible temperature control.

The above is only the implementation mode of this application, and does not limit the scope of patents of this application. Any equivalent structure or equivalent process conversion made by using the contents of this application specification and drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the present application in the same way.

Claims (16)

An electric heating assembly, including: The storage body has a storage cavity, and the storage cavity is used to store the substance to be heated; a wrapping film wrapped on the outer surface of the container; A heating circuit, arranged between the container and the wrapping film, is used to generate heat when energized to heat the substance to be heated; The external pin group is arranged on the surface of the wrapping film away from the container, and is electrically connected to the heating circuit, and is used for contacting with the power supply component to realize electrical connection. The electric heating assembly according to claim 1, wherein the wrapping film has a through hole, and the external pin group is electrically connected to the heating circuit through the through hole. The electric heating assembly according to claim 1, wherein the heating circuit is formed on the surface of the wrapping film close to the container, and is wrapped together with the wrapping film on the outer surface of the container. The electric heating assembly according to claim 3, wherein the wrapping film comprises: a first wrapping part, wrapped on the side wall of the container; The second wrapping part is connected with the first wrapping part and wrapped on the bottom wall of the container; the external pin group is arranged on the surface of the second wrapping part away from the container. The electric heating assembly according to claim 4, wherein the heating circuit comprises at least one of the following: a side wall heating circuit, formed in the first wrapping part, for heating the side wall of the container when energized; The bottom wall heating circuit is formed in the second wrapping part, and is used for heating the bottom wall of the container when electrified. The electric heating assembly according to claim 5, wherein the external pin group comprises a first external pin group, and the first external pin group communicates with the at least one heating circuit respectively; or, The external pin group includes a first external pin group and a second external pin group, the first external pin group communicates with the side wall heating circuit, and the second external pin group communicates with the bottom The wall heating circuit is connected. The electric heating assembly according to claim 6, wherein the side wall heating circuit comprises at least two independently arranged sub-heating circuits; The first external pin group includes: The first pin is connected to the first end of each sub-heating circuit; At least two second pins, each of the second pins is connected to the second end of one of the sub-heating circuits in a one-to-one correspondence. The electric heating assembly according to claim 7, wherein the housing is cylindrical; one of the first pin and the at least two second pins is the center of a circle, and the other pins are a circular ring concentric with said center; or The first pin and the plurality of second pins are concentric rings. The electric heating assembly according to claim 7, wherein an air inlet hole is formed on the bottom wall of the container, and an air hole communicating with the air inlet hole is formed on the second wrapping part, and the air inlet hole communicates with the air inlet hole. The air hole is located in the gap area between the first pin and at least two of the second pins. The electric heating assembly according to claim 7, wherein the first pins and/or the second pins are arranged in the shape of dots, strips or blocks, and the side wall of the container is provided with a Equipped with the limit part of the assembly position. The electric heating assembly according to claim 1, wherein the material of the housing is metal or heat-conducting ceramics. The electric heating assembly according to claim 11, wherein the electric heating assembly further comprises an infrared layer, and the infrared layer is disposed on the inner surface of the container. The electric heating assembly according to claim 11, wherein the material of the wrapping film is heat insulating ceramic or glass material. The electric heating element according to claim 13, wherein, the thermal conductivity of the container is not less than 10W/(m*K); and/or, the thermal conductivity of the wrapping film is not greater than 5W/(m*K) K). The electric heating assembly according to claim 1, wherein the material of the container is quartz glass, the electric heating assembly further includes an infrared layer, and the infrared layer is arranged between the container and the wrapping film . An electric heating device, including: An electric heating assembly for accommodating the substance to be heated, and generating heat to heat the substance to be heated when energized; wherein, the electric heating assembly is the electric heating assembly according to any one of claims 1-15; The power supply component includes electrodes, and the electrodes are used to abut against the external pins of the electric heating component, so as to communicate the electric heating component with the power supply component.

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