A smoking device with multi-electrode heating

Abstract

The present invention discloses a smoking device with multi-electrode heating, which includes a contact plate, a field generator, a heating chamber, and a mounting seat. The contact plate is placed at the bottom of the groove of the mounting seat. The bottom end of the heating chamber is fixedly connected to the groove wall of the mounting seat and presses the contact plate, thereby forming a semi-closed chamber for accommodating the aerosol-generating substrate. A plurality of contacts are arranged on the front surface of the contact plate, and the plurality of contacts are respectively electrically connected to the field generator. When the pole pins compounded in the aerosol-generating substrate are in corresponding contact conduction with the contacts, the internal substrate can be heated to precipitate smoke. The present invention is specifically targeted at the use of multi-electrode aerosol-generating substrates, and the relative positions of the electrodes and the distribution of the contacts form a corresponding matching and recognition effect; the field used for inductive heating is fully constrained, which can effectively improve the heating uniformity and sufficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of smoking devices, and particularly to a smoking device with multi-electrode heating. Background Art

[0002] High-frequency electric field heating is a form of dielectric heating of smoking devices. This form of heating has significant advantages compared with traditional heating methods (including conduction heating), because the main body of the aerosol generation matrix is directly heated, without the need for heat to be conducted from the outside to the inside through a temperature gradient after the surface is heated, which significantly reduces the possibility of unnecessary overheating or even charring of the surface.

[0003] However, non-uniform electromagnetic field distribution is the main factor leading to non-uniform high-frequency electric field heating. When the electrode spacing is reduced, the proportion of non-uniform inclined electric fields gradually decreases, which can improve the heating uniformity and sufficiency. Summary of the Invention

[0004] To solve the problems existing in the prior art, the present invention provides a smoking device with multi-electrode heating, which is specifically designed for use with a multi-electrode aerosol generation matrix, and forms a corresponding matching recognition effect with the relative positions of the electrodes and the contact distribution; it fully constrains the field used for inductive heating, and can effectively improve the heating uniformity and sufficiency.

[0005] The technical solution for the present invention to solve the problem is to provide a smoking device with multi-electrode heating, including a contact plate, a field generator, a heating chamber, and a mounting seat. The contact plate is placed at the bottom of the groove of the mounting seat. The bottom end of the heating chamber is fixedly connected to the groove wall of the mounting seat and presses the contact plate, thereby forming a semi-closed chamber for accommodating the aerosol generation matrix. A plurality of contacts are provided on the front surface of the contact plate, and the plurality of contacts are respectively electrically connected to the field generator, so that when the pole pins compounded in the aerosol generation matrix are in corresponding contact conduction with the contacts, the internal matrix can be heated to precipitate smoke.

[0006] Further, the heating chamber is a columnar cavity, and the heating chamber is fixedly connected perpendicular to the mounting seat.

[0007] Further, a fixing portion is provided on the inner side of the groove wall of the mounting seat, and a matching portion is correspondingly provided on the outer wall of the bottom end of the heating chamber, so that when the bottom end of the heating chamber is inserted into the groove of the mounting seat, the matching portion can be combined and fixed with the fixing portion.

[0008] Further, the contact plate includes a docking area in the middle and a docking ring on the outside. The area of the docking area is the same as the cross-sectional area of the inner cavity of the heating chamber, and the docking ring is docked with the port ring wall of the heating chamber.

[0009] Further, the side of the docking area facing the heating chamber is the front side, which includes a main contact and auxiliary contacts. The main contact is located at the center of the docking area, and a plurality of the auxiliary contacts are distributed in a circular pattern around the main contact.

[0010] Further, the side of the docking area facing the heating chamber is the front side, which includes hybrid contacts. A plurality of the hybrid contacts are symmetrically distributed and are arranged in a circular pattern on the front side of the docking area.

[0011] Further, the contacts penetrate and extend to the back side of the contact plate, enabling a plurality of the contacts to be electrically connected to the field generator.

[0012] Further, a limiting rib is provided on the side of the docking area facing the heating chamber. A plurality of the limiting ribs are distributed in a circular pattern centered on the docking area; the limiting ribs and the contacts do not interfere with each other.

[0013] Further, an energy field shielding layer is provided inside the heating chamber and inside the mounting seat.

[0014] Further, a clamping device is provided at the upper end of the heating chamber. The clamping device clamps the filter tip portion of the aerosol generating substrate, so that the relative position of the aerosol generating substrate and the contact plate is fixed; the clamping state of the clamping device is controlled by a driving portion.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention relates to a smoking device with multi-electrode heating, which is specifically matched for use with an aerosol generating substrate with multi-electrode heating. Matching contact is achieved based on the relative positional relationship between the pole pins compounded in the cigarette and the distribution of the contacts, so that there is an obvious matching and corresponding effect between the smoking device and the cigarette; during the use of the smoking device, only the cigarettes that can be matched can be sucked, and two-way identification and matching can be achieved.

[0017] The heating chamber of the smoking device is relatively complete, and no notch needs to be provided except for the port, which can well confine the energy field. The cigarette is easy to extract and does not stick to the tobacco shreds easily like a conventional pole pin insertion type, and can effectively avoid the mixing of strange smells in the heating chamber.

[0018] The upper port of the heating chamber of the smoking device is configured with a clamping device, which can clamp the structure of the cigarette inserted therein, and stabilize the relative positional relationship between it and the smoking device, so that the pole pins compounded in the cigarette can stably contact and conduct with the contacts on the bottom of the heating chamber.

[0019] In cooperation with the corresponding aerosol generating substrate, the pole pin spacing / distribution can be adjusted according to the size of the substrate, which can effectively improve the heating uniformity and sufficiency. Description of the Drawings

[0020] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, like reference numerals are used to represent like elements. The drawings in the following description are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is the main body diagram of a multi - electrode heating smoking device according to an embodiment of the present invention;

[0022] Figure 2 It is according to an embodiment of the present invention Figure 1 The enlarged structure diagram at position B in it;

[0023] Figure 3 It is the structure diagram of the contact plate of a multi - electrode heating smoking device according to an embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of an aerosol - generating matrix for multi - electrode heating provided by an embodiment of the present invention;

[0025] Figure 5 It is according to an embodiment of the present invention Figure 4 The cross - sectional schematic diagram along line A in it;

[0026] Figure 6 It is the structure diagram of the limiting plate of an aerosol - generating matrix for multi - electrode heating provided by an embodiment of the present invention.

[0027] In the figure: 1, filter tip; 2, smoking material; 3, secondary electrode needle; 4, main electrode needle; 5, limiting plate; 6, mixed electrode needle; 7, contact plate; 8, smoking device; 9, driving part; 21, outer wrapping paper; 51, limiting groove; 52, external connection part; 53, secondary electrode hole; 54, main electrode hole; 56, mixed electrode hole; 71, limiting rib; 72, docking ring; 73, secondary contact; 74, main contact; 76, mixed contact; 81, heating cavity; 82, mounting seat; 83, clamping device. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0029] To solve the above problems, the present invention proposes a smoking device with multi - electrode heating, which is for use with an aerosol - generating substrate / cigarette with built - in needle electrodes. Please refer to Figure 1 , Figure 2 , Figure 3 , including a contact plate 7, a field generator, a heating chamber 81, and a mounting seat 82. The contact plate 7 is placed at the bottom of the groove of the mounting seat 82. The bottom end of the heating chamber 81 is fixedly connected to the groove wall of the mounting seat 82 and presses the contact plate 7, thereby forming a semi - enclosed chamber for accommodating the aerosol - generating substrate. A plurality of contacts are arranged on the front surface of the contact plate 7, and the plurality of contacts are respectively electrically connected to the field generator. When the needle electrodes compounded in the aerosol - generating substrate are in corresponding contact and conduction with the contacts, the internal substrate can be heated to precipitate smoke.

[0030] For ease of understanding, taking the conventional cigarette type as an example for illustration, please refer to Figures 4-6 , which provides an aerosol - generating substrate with multi - electrode heating. Among them, the filter tip 1 is docked with the smoke - generating mass 2 and is formed by being wrapped with an outer wrapper 21. A plurality of heating needle electrodes are compounded in the smoke - generating mass 2 and are used in cooperation with the smoking device 8 in a front - end contact manner to realize the heating of the smoke - generating mass 2 and the precipitation of smoke.

[0031] It should be clear that the field generator in the smoking device 8 can be a radio - frequency generator, and the distribution and spacing of the heating needle electrodes can be adjusted according to the size of the cigarette, and it is only necessary to synchronously adjust the contacts on the contact plate 7.

[0032] Based on the cooperation mode of the needle electrodes and the contacts of the present invention, a limiting plate 5 is provided in the cigarette to limit the heating needle electrodes compounded in the cigarette, and to determine the stable relative position relationship between the needle electrodes. The limiting plate 5 is located at the front end of the cigarette and can be directly docked with the contact plate 7.

[0033] A limiting groove 51 can be opened on the limiting plate 5, and a limiting rib 71 can be provided on the contact plate 7. The distribution form can be centrosymmetric or circumferentially distributed, as shown in Figure 3 , Figure 6 . When the cigarette rotates in the heating chamber 81, it can rotate at equal angles, and as long as the limiting rib 71 is aligned with the limiting groove 51, the corresponding contact, contact, and conduction between the contacts and the needle electrodes can be completed.

[0034] An external connection part 52 can be provided on the outer ring wall of the limiting plate 5 to facilitate fixing with the outer wrapper 21. It can be understood that the outer wrapper 21 is an external structure, which can include multiple layers of materials and is not limited to paper materials.

[0035] In the embodiment of the present invention, the contact plate 7 and the heating chamber 81 are both fixed to the mounting seat 82 to maintain a relatively stable posture. When the cigarette is inserted into the heating chamber 81, the stable docking and conduction between the needle electrodes and the contacts can be ensured.

[0036] Specifically, the contact plate 7 is placed at the bottom of the groove of the mounting seat 82, and the bottom end of the heating cavity 81 is fixedly connected to the groove wall of the mounting seat 82 and presses the contact plate 7. The heating cavity 81 is a columnar cavity, and together with the contact plate 7, a semi-closed chamber for accommodating the aerosol-forming substrate / cigarette can be formed, which is beneficial to the confinement of the energy field.

[0037] The heating cavity 81 and the mounting seat 82 should be vertically fixedly connected. A fixing portion can be provided on the inner side of the groove wall of the mounting seat 82, and a mating portion is correspondingly provided on the outer wall at the bottom end of the heating cavity 81. When the bottom end of the heating cavity 81 is inserted into the groove of the mounting seat 82, the mating portion can be combined with the fixing portion to achieve a fixed connection. Preferably, the fixing portion and the mating portion can be in a threaded fit.

[0038] It should be clear that the contact plate 7 can be placed at the bottom of the groove first, and then the fixed connection between the heating cavity 81 and the mounting seat 82 can be completed.

[0039] The contact plate 7 can be divided into a docking area and a docking ring 72. Among them, the docking area faces the inner cavity of the heating cavity 81; the docking ring 72 is used to dock with the port ring wall of the heating cavity 81, so that the heating cavity 81 can press the contact plate 7. The side of the docking area facing the heating cavity 81 is defined as the front, and a contact point is provided thereon to correspond to, contact, and conduct with the pole pin of the cigarette.

[0040] As an implementation manner, the front of the docking area includes a main contact 74 and auxiliary contacts 73. The main contact 74 is located at the center of the docking area, and a plurality of auxiliary contacts 73 are distributed in a circle around the main contact 74.

[0041] Correspondingly, the composite layout of the heating pole pins in the cigarette can be: the heating pole pins can include a main pole pin 4 and auxiliary pole pins 3. The main pole pin 4 can be located at the center of the smoke-forming mass 2, and multiple auxiliary pole pins 3 are distributed in a circle around the main pole pin 4. Please refer to Figure 5 , including a main pole pin 4 located at the center position, which is the positive electrode; including four auxiliary pole pins 3 arranged around, which are the negative electrodes. It can be understood that the main pole pin 4 and the auxiliary pole pins 3 are relative, and the polarities given to them are provided by the smoking device and can be changed.

[0042] Correspondingly, the limiting plate 5 can include a main pole hole 54 and auxiliary pole holes 53. The main pole hole 54 is located at the center of the limiting plate 5, and a plurality of auxiliary pole holes 53 are distributed in a circle around the main pole hole 54, so that the main pole pin 4 and the auxiliary pole pins 3 can be inserted into the main pole hole 54 and the auxiliary pole holes 53 in a one-to-one correspondence.

[0043] As another implementation manner, the front of the docking area includes mixed contacts 76, and a plurality of mixed contacts 76 are symmetrically distributed and are distributed in a circle on the front of the docking area.

[0044] Correspondingly, the composite layout of the heating electrode pins inside the cigarette can be as follows: The heating electrode pins can include multiple mixed-polarity pins 6, and the multiple mixed-polarity pins 6 are symmetrically distributed in the tobacco mass 2; the number of the mixed-polarity pins 6 should be an even number. Please refer to Figure 5 , including four mixed-polarity pins 6 that are centrosymmetrically distributed, and the polarities of the mixed-polarity pins 6 can be predefined or temporarily changed according to actual needs.

[0045] Correspondingly, the limiting plate 5 includes mixed-polarity holes 56, and multiple mixed-polarity holes 56 are symmetrically distributed on the limiting plate 5, so that the mixed-polarity pins 6 can be inserted into the mixed-polarity holes 56 one by one in correspondence.

[0046] Based on the above two implementation manners, please refer to Figure 3 , Figure 5 , Figure 6 , the two implementation manners can be integrated together, so that the smoking device 8 can at least match two types of cigarettes without affecting each other. It can be understood that after reasonable layout addition and permutation and combination, the smoking device 8 can be applicable to cigarettes with various composite methods of electrode pins. However, for the cigarette, smoking cannot be achieved without using the necessary smoking device 8.

[0047] In the embodiments of the present invention, the contact can penetrate through the contact plate 7 and extend to the back surface, so that the contact area on the front surface can be electrically connected to the field generator on the back surface. The mounting seat 82 can reserve corresponding space to achieve the transfer of the energy field without disturbing the posture of the contact plate 7.

[0048] In the embodiments of the present invention, targeted energy field shielding layers can be provided on the inner circumferential wall of the heating cavity 81 and the inner side wall of the mounting seat 82, so as to constrain the energy field formed by the electrode pins after conduction.

[0049] In the embodiments of the present invention, since the contact conduction between the electrode pins of the cigarette and the contacts of the contact plate 7 requires a stable relative position, a clamping device 83 can be provided at the upper end of the heating cavity 81 to clamp the position corresponding to the filter tip 1 of the cigarette, so that the relative position between the cigarette and the contact plate 7 is fixed, ensuring the stable operation of the contact conduction.

[0050] Furthermore, the clamping state of the clamping device 83 can be controlled by the driving part 9, and the control end of the driving part 9 can be extended outside the housing of the smoking device 8, so as to achieve manual control.

[0051] It should be clear that the smoking device 8 should also include a power supply module, a central control module, and a display module. The power supply module is used to supply power to the central control module, the display module, the field generator, and the driving part 9. The central control module is used to control the heating intensity of the field generator, the operation of the driving part 9, and the display content of the display module. The clamping state corresponding to the operation of the driving part 9 can be adjusted by the central control module, while manual control is retained. The display module is used to display the status information of the smoking device 8.

[0052] The content described above can be implemented alone or in various combinations, and these variant forms are all within the protection scope of the present invention.

[0053] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0054] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the present invention are only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A smoking device with multi - electrode heating, characterized in that, it includes a contact plate (7), a field generator, a heating chamber (81), and a mounting base (82). The contact plate (7) is placed at the bottom of the groove of the mounting base (82). The bottom end of the heating chamber (81) is fixedly connected to the groove wall of the mounting base (82) and presses the contact plate (7), thereby forming a semi - enclosed chamber for accommodating the aerosol - generating matrix. A plurality of contact points are provided on the front surface of the contact plate (7), and the plurality of contact points are respectively electrically connected to the field generator. When the pole needles compounded in the aerosol - generating matrix are in corresponding contact conduction with the contact points, the internal matrix can be heated to precipitate smoke; The plurality of contact points on the front surface of the contact plate (7) include a main contact point (74) and auxiliary contact points (73). The main contact point (74) is located at the central position of the contact plate (7), and the plurality of auxiliary contact points (73) are distributed in a circular pattern around the main contact point (74).

2. The smoking device with multi - electrode heating according to claim 1, characterized in that, the heating chamber (81) is a column - shaped cavity, and the heating chamber (81) is fixedly connected perpendicular to the mounting base (82).

3. The smoking device with multi - electrode heating according to claim 1, characterized in that, a fixing part is provided on the inner side of the groove wall of the mounting base (82), and a matching part is correspondingly provided on the outer wall of the bottom end of the heating chamber (81). When the bottom end of the heating chamber (81) is inserted into the groove of the mounting base (82), the matching part can be combined and fixed with the fixing part.

4. The smoking device with multi - electrode heating according to claim 1, characterized in that, the contact plate (7) includes a docking area in the middle and a docking ring (72) on the outside. The area of the docking area is the same as the cross - sectional area of the inner cavity of the heating chamber (81), and the docking ring (72) is docked with the port ring wall of the heating chamber (81).

5. The smoking device with multi - electrode heating according to claim 4, characterized in that, the side of the docking area facing the heating chamber (81) is the front surface, which includes a main contact point (74) and auxiliary contact points (73). The main contact point (74) is located at the central position of the docking area.

6. The smoking device with multi - electrode heating according to claim 4, characterized in that, the side of the docking area facing the heating chamber (81) is the front surface, which includes mixed contact points (76). The plurality of mixed contact points (76) are symmetrically distributed and are distributed in a circular pattern on the front surface of the docking area.

7. The smoking device with multi - electrode heating according to claim 4, characterized in that, the contact points penetrate and extend to the back surface of the contact plate (7) so that the plurality of contact points can be electrically connected to the field generator.

8. The smoking device with multi - electrode heating according to claim 4, characterized in that, a limiting rib (71) is provided on the side of the docking area facing the heating chamber (81). The plurality of limiting ribs (71) are distributed in a circular pattern with the center of the docking area as the center; the limiting ribs (71) do not interfere with the contact points.

9. The smoking device with multi - electrode heating according to claim 1, Characterized in that, An energy field shielding layer is provided inside the heating chamber (81) and inside the mounting base (82).

10. A smoking device with multi-electrode heating according to claim 1, Characterized in that, A clamping device (83) is provided at the upper end of the heating chamber (81), and the clamping device (83) clamps corresponding to the filter tip (1) part of the aerosol generating substrate, so that the relative position of the aerosol generating substrate and the contact plate (7) is fixed; the clamping state of the clamping device (83) is controlled by a driving part (9).

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