Heating non-combustion smoking set

Abstract

The utility model discloses a heating non-combustion smoking set which comprises a shell and a circuit assembly arranged in the shell, and the circuit assembly comprises a battery, a supporting structure arranged at the end of the battery and a circuit board connected with the supporting structure; the part of the circuit board close to the battery is provided with an anode joint and a cathode joint for connecting the battery, the battery comprises an anode lug and a cathode lug which are respectively led out from one end of the battery, the anode joint is welded and fixed with the anode lug, and the cathode joint is welded and fixed with the cathode lug. Compared with the prior art in which the circuit board is arranged around the battery in a wrapping manner, the above structure can greatly reduce the size of the battery and the circuit board assembly in the radial direction and the axial direction, and can avoid or greatly reduce the influence of the heating of the battery in the working process on the normal work of the circuit board.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoking articles, and particularly relates to a heat-without-burning smoking article. Background Art

[0002] Relevant studies have shown that the combustion temperature of traditional cigarettes is above 800℃, and more than 5,000 chemical substances are produced during the combustion process, including more than 80 carcinogenic chemicals. The smoke produced is quite harmful to non-smokers. Heat-not-burn technology is a technology that directly heats tobacco without burning it to produce smoke. The harmful substances produced by this heating method are much less than those produced by burning traditional cigarettes, which can meet consumer needs while reducing harm to the body.

[0003] The main tools of heat-not-burn technology are heat-not-burn smoking devices. Heat-not-burn smoking devices heat tobacco materials to cause a pyrolysis reaction, which heats the tobacco materials just enough to emit tobacco flavor and smoke for users to inhale.

[0004] Existing heat-not-burn smoking devices, whether they are generally cylindrical rod-shaped structures or flat box-shaped structures, generally have a smoke chamber for containing tobacco products, a heating element for heating tobacco products to form smoke, a battery for providing power to the heating element, a circuit for connecting the battery to the power supply and a circuit board carrying the circuit, a control circuit for controlling the battery to provide power to the heating element and a circuit board carrying the circuit, etc.

[0005] Compared with box-shaped structures, heat-not-burn tobacco devices with a rod-shaped structure are favored by more and more consumers because of their small size, convenient grip, and more consistent hand-holding feel with traditional cigarettes. However, compared with the box-shaped structure, the rod-shaped structure also has the defect of limited internal installation space. The integration of the above-mentioned battery, heating element, smoke chamber and other structures in a small installation space will have a great impact on the axial and radial dimensions of the rod-shaped structure on the one hand, and on the other hand, it will affect the connection and positioning of the circuit board inside it and the assembly of various components into the rod-shaped shell after assembly.

[0006] For example, affected by other components and space, the connection between the circuit boards of existing heat-not-burn tobacco products is mostly achieved by welding wires on the circuit boards at both ends to achieve electrical connection. For this connection method: on the one hand, the radial dimensions of the battery, wires, and circuit boards after assembly will increase. If the external dimensions of the tobacco product are certain, in order to meet the requirements that the three can be installed in the tobacco product after assembly, the volume of the battery needs to be reduced. The reduction in the volume of the battery will reduce the capacity of the battery, thereby greatly reducing the endurance of the tobacco product. If the external dimensions of the tobacco product are uncertain, in order to ensure the endurance of the battery, the size of the above-mentioned wires will be added to the battery size required for normal heat-not-burn tobacco products. This will increase the external dimensions of the tobacco product, which will not only increase the overall weight of the tobacco product, but also reduce the consumer's feel due to the thicker outer periphery. On the other hand, since the wires are soft, it is difficult to ensure batch consistency in their positioning and welding.

[0007] Patent document CN204464364U discloses a disposable electronic cigarette, which includes a mouthpiece and a cigarette rod. The cigarette rod is provided with an atomizer, a soft-pack columnar battery and a microphone. The battery includes a battery cell and a flexible circuit board attached to the outer surface of the battery cell. The two ends of the battery cell are provided with positive and negative ears. The flexible circuit board is provided with welding points at positions corresponding to the positive and negative ears. The flexible circuit board is also provided with welding points for the atomizer and the microphone to achieve electrical connection of various components. Although the flexible circuit board of the above-mentioned electronic cigarette can be rolled up in a manner of surrounding the battery cell to reduce the radial size of the two after the cigarette is assembled, the connection method with the atomizer and the microphone greatly increases the axial size of the circuit board, battery, atomizer and microphone after assembly, thereby increasing the axial size of the cigarette. In addition, the heating principles of electronic cigarettes and low-temperature non-burning cigarettes are very different. The main object of low-temperature non-burning cigarettes is still traditional tobacco. The battery life of the heat-not-burning smoking device has a greater impact on the number of puffs of the low-temperature non-burning cigarette. Moreover, unlike electronic cigarettes, which are equipped with an atomizer and a microphone inside, both can be used to fix the circuit board respectively. The heat-not-burning smoking device does not have components such as an atomizer and a microphone. Therefore, the fixing method of the internal circuit board and the fixing method will have a relatively large impact on the axial and radial dimensions of the smoking device after overall assembly, thereby affecting the user experience.

[0008] In addition, due to the flexible nature of the circuit board, it is not easy to assemble it in the process of being installed in the housing, and the positioning accuracy cannot be guaranteed, which easily affects the reliability and stability of the circuit connection. Moreover, in the prior art, most of the control circuit boards used to control the battery to provide power to the heating element are provided with electrical connectors between the battery, and there is no interaction between the battery and the mounting structure for mounting the circuit board, so that automated assembly cannot be achieved, reducing assembly efficiency.

[0009] This shows that the many drawbacks of the prior art need to be further improved and enhanced. Utility Model Content

[0010] The utility model provides a heat-not-burn smoking device to solve at least one of the above-mentioned technical problems.

[0011] The technical solution adopted by the utility model is:

[0012] The utility model provides a heat-not-burn smoking device, comprising a shell and a circuit assembly arranged inside the shell, wherein the circuit assembly comprises a battery, a support structure arranged at an end of the battery, and a circuit board connected to the support structure; a portion of the circuit board close to the battery is provided with a positive electrode connector and a negative electrode connector for connecting the battery, the battery comprises a positive electrode ear and a negative electrode ear respectively led out from one end of the battery, the positive electrode connector is welded and fixed to the positive electrode ear, and the negative electrode connector is welded and fixed to the negative electrode ear.

[0013] As a preferred embodiment of the present application, the circuit board includes a first circuit area, a second circuit area, and a connection area connecting the first circuit area and the second circuit area; the first circuit area and the second circuit area are bent relative to the connection area in a direction away from the battery, and the connection area abuts against one end of the battery or the connection area is arranged close to one end of the battery.

[0014] As a preferred embodiment of the present application, the support structure is arranged at one end of the battery, and the connection area is arranged between the support structure and the battery; the first circuit area and the second circuit area are relatively arranged on both sides of the support structure.

[0015] As a preferred implementation manner of the present application, a reinforcement layer is provided on a side of the first circuit region and / or the second circuit region facing the support structure.

[0016] As a preferred embodiment of the present application, an adhesive layer is provided between the first circuit region and / or the second circuit region and the support structure, and the first circuit region and / or the second circuit region and the support structure are bonded and fixed via the adhesive layer.

[0017] As a preferred embodiment of the present application, a side portion of the support structure is provided with an adhesive portion corresponding to the shape of the first circuit area and / or the second circuit area, and the adhesive portion has the adhesive layer.

[0018] As a preferred embodiment of the present application, the circuit assembly also includes a USB interface connected to the circuit board, and the USB interface is arranged between the first circuit area and the second circuit area; the supporting structure has an assembly groove that can accommodate the USB interface.

[0019] As a preferred embodiment of the present application, a recessed portion is further provided on the side of the support structure, and the assembly groove is provided on a side edge of the recessed portion; the circuit assembly also includes a heating assembly, and at least a portion of the heating assembly is provided in the recessed portion; a clamping block is further provided on the outside of the recessed portion, and an installation gap is provided between the clamping block and the recessed portion, and at least a portion of the first circuit area or the second circuit area is provided in the installation gap.

[0020] As a preferred embodiment of the present application, the heating assembly includes a heating element, one end of which extends into the recessed portion and is electrically connected to the circuit board.

[0021] As a preferred embodiment of the present application, the heating assembly also includes an insulation sleeve and an insulation seat, the insulation sleeve is adjacent to the support structure, one end of the insulation seat is installed on the support structure, the insulation sleeve is against the other end of the insulation seat, and at least part of the low-temperature non-burning cigarette is located inside the insulation sleeve.

[0022] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0023] 1. As a preferred embodiment of the present application, by adopting the above structure, compared with the prior art in which the circuit board is wrapped around the battery, the above structure can greatly reduce the radial size of the battery and circuit board assembly, and can avoid or greatly reduce the impact of the heat generated by the battery during operation on the normal operation of the circuit board. Moreover, since the circuit board in the present application is a "U"-shaped structure, it can complement the installation space with other components inside the shell, thereby avoiding occupying too much installation space in the axial dimension, resulting in the axial dimension of the entire smoking device being too large, which is ultimately conducive to the miniaturization of the smoking device.

[0024] 2. As a preferred embodiment of the present application, the welding of the flexible circuit board with the battery, USB interface and heating element can be achieved by automated equipment. After the welding of the three is completed, the assembly with the supporting structure and the assembly with the outer shell after the assembly are completed can be achieved by automated equipment, thereby eliminating a large number of manual operations caused by poor consistency, multiple processes, high labor intensity, high labor costs and other defects, greatly reducing production costs.

[0025] 3. As a preferred embodiment of the present application, a flexible printed circuit board is used to realize the electrical connection between various components, and there is no need to use wires to connect the various components. On the one hand, the radial dimension of the flexible printed circuit board after being connected to the battery is reduced, which is conducive to the miniaturization of the smoking device, and facilitates the assembly and production of the heat-not-burn smoking device, which is conducive to improving the assembly efficiency and production efficiency of the heat-not-burn smoking device. On the other hand, since wires are not used to connect the various components, the operation of manually arranging the wire lines is saved, which makes the welding of the flexible printed circuit board and the battery, the flexible printed circuit board and the heating element, and the flexible printed circuit board and the USB interface more convenient, and makes the circuit layout inside the entire smoking device more regular. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of the structure of a heat-not-burn smoking device;

[0028] Figure 2 It is a front view structural schematic diagram of the flexible circuit board and the supporting member;

[0029] Figure 3 It is a rear view structural diagram of the flexible circuit board and the supporting member;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the flexible circuit board and the supporting member;

[0031] Figure 5 It is a schematic diagram of the matching structure of the battery and the flexible circuit board;

[0032] Figure 6 This is a schematic diagram of the structure of the reinforcement layer;

[0033] Figure 7 is a schematic diagram of the three-dimensional structure of the supporting member;

[0034] Figure 8 It is a schematic diagram of the side structure of the supporting member.

[0035] in,

[0036] 1 housing;

[0037] 2 circuit board, 21 first circuit area, 22 second circuit area, 23 connection area, 24 positive electrode connector, 25 negative electrode connector, 26 reinforcement layer;

[0038] 3 supporting structure, 31 assembly groove, 32 recessed portion, 33 clamping block, 34 installation gap;

[0039] 4 batteries, 41 positive electrode ear, 42 negative electrode ear;

[0040] 5. Charging port;

[0041] 61 heating element, 62 heat insulation seat, 621 heat insulation sleeve;

[0042] 7. Low-temperature non-burning cigarettes. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0045] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0048] like Figure 1-8 As shown, the utility model provides a heat-not-burn smoking device, including a shell 1 and a circuit assembly arranged inside the shell 1, the circuit assembly including a battery 4, a support structure 3 arranged at the end of the battery 4 and a circuit board 2 connected to the support structure 3; the circuit board 2 is provided with a positive electrode connector 24 and a negative electrode connector 25 for connecting the battery 4 at a portion close to the battery 4, the battery 4 includes a positive electrode ear 41 and a negative electrode ear 42 respectively led out from one end of the battery 4, the positive electrode connector 24 is welded and fixed to the positive electrode ear 41, and the negative electrode connector 25 is welded and fixed to the negative electrode ear 42.

[0049] In a preferred example, referring to Figure 2-4 As shown, the circuit board 2 includes a first circuit area 21, a second circuit area 22, and a connection area 23 connecting the first circuit area 21 and the second circuit area 22; the first circuit area 21 and the second circuit area 22 are bent relative to the connection area 23 in a direction away from the battery 4, and the connection area 23 is in contact with one end of the battery 4 or the connection area 23 is arranged close to one end of the battery 4. Figure 5 As shown, the support structure 3 is arranged at one end of the battery 4 , and the connection area 23 is arranged between the support structure 3 and the battery 4 ; the first circuit area 21 and the second circuit area 22 are arranged on both sides of the support structure 3 .

[0050] By adopting the above structure, compared with the prior art in which the circuit board 2 is wrapped around the battery 4, the above structure can greatly reduce the radial size of the battery 4 and the circuit board 2 assembly, and can avoid or greatly reduce the influence of the heat generated by the battery 4 during operation on the normal operation of the circuit board 2. Moreover, since the circuit board 2 in the present application is a "U"-shaped structure, it can complement the other components inside the housing 1 in terms of installation space, thereby also avoiding occupying too much installation space in the axial dimension, resulting in an excessively large axial dimension of the entire smoking device, which is ultimately conducive to the miniaturization of the smoking device.

[0051] In addition, the support structure 3 can fix the circuit board 2 relative to the battery 4, and reduce the setting of the wires, thereby improving the compactness of the overall structure. Moreover, by connecting more closely, each component will form a relatively stable whole based on the circuit board 2 and the support structure 3, thereby improving the modularity of the product and reducing the complexity of the subsequent assembly process. Obviously, the welding structure is used to fix the components and the circuit board 2 relatively, which is easier to operate than first fixing and limiting each component and then connecting them through wires, and it can also reduce the setting of the process device. It can ensure that the circuit board 2 is less likely to bend during the pushing process, and also reduce the probability of product damage during the automated production process.

[0052] In addition, the battery 4, the circuit board 2 and the supporting structure 3 in the present application are arranged sequentially in the axial direction. Compared with the prior art method of arranging the battery 4, the circuit board 2 and other circuit components side by side in the axial direction, the above structure is more convenient and quick during the assembly, maintenance and disassembly process, which is conducive to improving the assembly efficiency and is conducive to the modular design and production of smoking utensils.

[0053] As a preferred embodiment of the present application, a reinforcing layer 26 is provided on the side of the first circuit region 21 and / or the second circuit region 22 facing the support structure 3. The reinforcing layer 26 will strengthen the rigidity of the local structure of the flexible circuit board 2, so that the local structure of the flexible circuit board 2, especially the part where the positive terminal 24 and the negative terminal 25 are provided, is a rigid structure, and the front side of the part can be kept from bending and changing, so as to avoid the structure provided on the front side from being pulled due to the bending of the flexible circuit board 2, causing damage or failure.

[0054] An adhesive layer (not shown in the figure) is provided between the first circuit area 21 and / or the second circuit area 22 and the support structure 3, and the first circuit area 21 and / or the second circuit area 22 are bonded and fixed to the support structure 3 through the adhesive layer. The side of the support structure 3 is provided with an adhesive portion corresponding to the shape of the first circuit area 21 and / or the second circuit area 22, and the adhesive portion is bonded and fixed to the adhesive layer. The use of the adhesive method is convenient and fast and avoids the additional connection structure that makes the internal structure of the smoking device complicated, resulting in reduced assembly efficiency and larger overall size.

[0055] Further, refer to Figure 4 As shown, the circuit assembly further includes a USB interface 5 connected to the circuit board 2, and the USB interface 5 is arranged between the first circuit area 21 and the second circuit area 22; the support structure 3 has a mounting groove 31 that can accommodate the USB interface 5. In one example, referring to Figure 7As shown, a recessed portion 32 is further provided on the side of the support structure 3, and an assembly groove 31 is provided on one side edge of the recessed portion 32. The USB interface 5 is provided between the first circuit area 21 and the second circuit area 22 and directly connected to the circuit board 2, which saves the wire arrangement and fully utilizes the installation space between the first circuit area 21 and the second circuit area 22. The arrangement of the assembly groove 31 is conducive to the fixation of the USB interface 5 relative to the circuit board 2, and prevents the USB interface 5 from being separated from the circuit board 2 due to external force during long-term use, which affects normal operation.

[0056] Further, refer to Figure 6-8 As shown, the circuit assembly further includes a heating assembly, at least a portion of which is disposed in the recessed portion 32; a clamping block 33 is further disposed on the outside of the recessed portion 32, and an installation gap 34 is provided between the clamping block 33 and the recessed portion 32, and at least a portion of the first circuit area 21 or the second circuit area 22 is disposed in the installation gap 34. The arrangement of the clamping block 33 and the installation gap 34 can restrict the edge of the first circuit area 21 or the second circuit area 22 away from the battery 4 to be closely attached to the support structure 3, thereby preventing the edge of the circuit board 2 from warping and separating from the support structure 3 during long-term use.

[0057] Further, refer to Figure 4 and Figure 6 As shown, the heating assembly includes a heating element 61, one end of which extends into the recess 32 and is connected to the circuit board 2. Figure 3 As shown, the heating assembly also includes an insulating sleeve 621 and an insulating seat 62. The insulating sleeve 621 is adjacent to the supporting structure 3. One end of the insulating seat 62 is installed on the supporting structure 3. The insulating sleeve 621 is against the other end of the insulating seat 62. At least part of the low-temperature non-burning cigarette 7 is located inside the insulating sleeve 621.

[0058] The structures and arrangements of the various components mentioned above can bring about the beneficial effect of reducing the axial and radial dimensions of the components after assembly, thereby making the smoking device develop in the direction of miniaturization. From another perspective, using the structures and arrangements of the components in this embodiment, a larger battery 4 can be used in a smoking device of the same size, thereby increasing the capacity of the battery 4, improving the battery life of the battery 4, and improving the user experience. In addition, by directly electrically connecting the circuit board 2 to the heating element 61, the influence of factors such as line resistance caused by the setting of the wire is avoided, thereby ensuring the stable working condition of the heating element 61, ensuring the stable taste of each puff of the user, and bringing a better user experience to the user.

[0059] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0060] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0061] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A heat-not-burn smoking device, It is characterized in that It comprises a shell and a circuit assembly arranged inside the shell, wherein the circuit assembly comprises a battery, a support structure arranged at the end of the battery, and a circuit board connected to the support structure; a portion of the circuit board close to the battery is provided with a positive electrode connector and a negative electrode connector for connecting the battery, the battery comprises a positive electrode ear and a negative electrode ear respectively led out from one end of the battery, the positive electrode connector is welded and fixed to the positive electrode ear, and the negative electrode connector is welded and fixed to the negative electrode ear.

2. The heat-not-burn smoking device according to claim 1, Features: The circuit board includes a first circuit area, a second circuit area, and a connection area connecting the first circuit area and the second circuit area; the first circuit area and the second circuit area are bent relative to the connection area in a direction away from the battery, and the connection area abuts against one end of the battery or the connection area is arranged close to one end of the battery.

3. The heat-not-burn smoking device according to claim 2, Features: The support structure is arranged at one end of the battery, and the connection area is arranged between the support structure and the battery; the first circuit area and the second circuit area are arranged on two sides of the support structure opposite to each other.

4. The heat-not-burn smoking device according to claim 3, Features: A reinforcement layer is disposed on a side of the first circuit region and / or the second circuit region facing the support structure.

5. The heat-not-burn smoking device according to claim 3, Features: An adhesive layer is provided between the first circuit region and / or the second circuit region and the support structure, and the first circuit region and / or the second circuit region and the support structure are bonded and fixed by the adhesive layer.

6. The heat-not-burn smoking device according to claim 5, Features: A bonding portion corresponding to the shape of the first circuit region and / or the second circuit region is disposed on a side of the support structure, and the bonding portion has the bonding layer.

7. The heat-not-burn smoking device according to claim 6, Features: The circuit assembly also includes a USB interface connected to the circuit board, and the USB interface is arranged between the first circuit area and the second circuit area; the supporting structure has an assembly groove that can accommodate the USB interface.

8. The heat-not-burn smoking device according to claim 7, Features: The side of the support structure is also provided with a recessed portion, and the assembly groove is provided at a side edge of the recessed portion; the circuit assembly further comprises a heating assembly, and at least a portion of the heating assembly is provided in the recessed portion; A clamping block is further arranged on the outer side of the recessed portion, and an installation gap is provided between the clamping block and the recessed portion, and at least a part of the first circuit area or the second circuit area is arranged in the installation gap.

9. The heat-not-burn smoking device according to claim 8, Features: The heating assembly comprises a heating element, one end of which extends into the recess and is connected to the circuit board.

10. The heat-not-burn smoking device according to claim 9, Features: The heating assembly also includes an insulation sleeve and an insulation seat, the insulation sleeve is adjacent to the support structure, one end of the insulation seat is installed on the support structure, the insulation sleeve is against the other end of the insulation seat, and at least part of the low-temperature non-burning cigarette is located inside the insulation sleeve.

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