Electronic cigarette with full metal shell and slot antenna

Abstract

The application relates to the technical field of electronic cigarettes, and particularly discloses a full-metal shell electronic cigarette with a slot antenna, which comprises a shell, a cover and a slot antenna. The shell comprises opposite first and second ends along the length direction, the first end is used for mounting a cigarette cartridge, the second end is provided with a groove extending along the length direction of the shell, and the opening of the groove faces away from the cigarette cartridge. The cover is arranged at the opening of the groove, and the groove and the cover form a mounting cavity. The slot antenna comprises a ring-shaped part and an intermediate part, the ring-shaped part is arranged around the outer periphery of the intermediate part, a ring-shaped slot is formed between the ring-shaped part and the intermediate part, the slot antenna is mounted in the mounting cavity, the slot antenna is away from the groove bottom, and the plane where the ring-shaped slot is located is perpendicular to the extension direction of the shell. The structure improves the ornamental value of the electronic cigarette and reduces the processing difficulty and cost of the shell.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic cigarettes, and particularly relates to a full-metal shell electronic cigarette with a slot antenna. BACKGROUND

[0002] The antenna design used by the electronic cigarette develops towards the requirement of the metalization of the body, and more stringent requirements are put forward for the antenna. The antenna is difficult to design for the full-metal body, and the antenna cannot leak out of the metal body, so that the electromagnetic wave cannot be transmitted out, and even if some electromagnetic waves are radiated out, the efficiency is very low.

[0003] The existing scheme generally exposes the antenna on the side of the body by a little bit of the body, so that the antenna has a certain clearance, and the radiation efficiency of the antenna is further improved. The above method causes the whole body to be unable to realize the full-metal design, affects the ornamental nature of the product, and makes the processing complex and the cost increased.

[0004] Therefore, it is urgent to research a full-metal shell electronic cigarette with a slot antenna, so as to realize the full-metal design of the shell, improve the ornamental nature of the electronic cigarette, and reduce the processing difficulty and the cost. SUMMARY

[0005] The purpose of the present application is to provide a full-metal shell electronic cigarette with a slot antenna, so as to realize the full-metal design, improve the ornamental nature of the electronic cigarette, and reduce the processing difficulty and the cost.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] The present application provides a full-metal shell electronic cigarette with a slot antenna, which comprises:

[0008] A shell, the shell comprises opposite first and second ends, the first end is used for mounting a cartridge, and the second end is provided with a groove, the groove extends along the length direction of the shell, and the opening of the groove is away from the cartridge;

[0009] A cover body, the cover body is arranged at the opening of the groove, and the groove and the cover body surround to form a mounting cavity;

[0010] A slot antenna, the slot antenna comprises a ring-shaped part and an intermediate part, the ring-shaped part is arranged around the outer periphery of the intermediate part, and a ring-shaped slot is formed between the ring-shaped part and the intermediate part;

[0011] The slot antenna is mounted in the mounting cavity, the slot antenna is away from the groove bottom, and the plane where the ring-shaped slot is located is perpendicular to the extension direction of the shell.

[0012] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the cover body comprises a ring-shaped blocking piece and an intermediate blocking piece, the ring-shaped blocking piece is prepared by a nano injection molding process, and the ring-shaped blocking piece connects the intermediate blocking piece and the shell.

[0013] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the shape of the ring-shaped blocking piece is the same as that of the ring-shaped slot, the width dimension between the inner side wall and the outer side wall of the ring-shaped blocking piece is L1, the width dimension of the ring-shaped slot is L2, and L1 is greater than or equal to L2.

[0014] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the depth of the groove is L3, L3 is greater than or equal to 15 mm, and the distance between the slot antenna and the groove bottom is greater than or equal to 15 mm.

[0015] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the full-metal shell electronic cigarette with a slot antenna comprises a shielding piece, the shielding piece is arranged on the shell, and the distance between the shielding piece and the slot antenna is greater than or equal to 15 mm.

[0016] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the ring-shaped part is connected with the inner side wall of the groove.

[0017] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the inner side wall of the groove is provided with a support part, one side of the support part and the ring-shaped part abut, and the other side of the ring-shaped part and the cover body abut.

[0018] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the support part is annular and is arranged around the inner side wall of the groove.

[0019] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the bottom of the groove is provided with a support boss, one side of the intermediate part abuts against the support boss, and the other side abuts against the cover body.

[0020] As an optional technical scheme of the full-metal shell electronic cigarette with a slot antenna, the shell is made of metal, and the ring-shaped part is electrically connected with the shell.

[0021] The beneficial effects of the present application are as follows:

[0022] This invention provides an all-metal shell electronic cigarette with a slotted antenna. The all-metal shell electronic cigarette with a slotted antenna has a groove at one end of the shell, and a cover can be placed over the opening of the groove, forming a mounting cavity. The slotted antenna can be installed in the mounting cavity, and the slotted antenna is far from the bottom of the groove. With this structure, the slotted antenna is positioned with sufficient clearance. Furthermore, since the plane of the annular slot is perpendicular to the extension direction of the shell, the electromagnetic wave radiation direction of the slotted antenna is parallel to the extension direction of the shell. Therefore, the entire shell can be made of metal. The metal shell improves the aesthetics of the electronic cigarette without affecting the electromagnetic wave radiation of the slotted antenna, and the all-metal shell is easy to manufacture and has low cost. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an all-metal casing electronic cigarette with a slot antenna in an embodiment of the present invention;

[0024] Figure 2 This is a front view of an all-metal casing electronic cigarette with a slotted antenna according to an embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of the housing with a slotted antenna in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the slot antenna structure in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the annular sealing element in an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Shell; 101. First end; 102. Second end; 11. Groove; 12. Support; 13. Support boss;

[0030] 2. Cover body; 21. Annular sealing element; 22. Intermediate sealing element;

[0031] 3. Slot antenna; 31. Ring-shaped part; 32. Middle part; 33. Ring-shaped slot; 34. Feed terminal; 35. Inductor; 36. Capacitor. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "upper", "above" and "on" of the first feature to the second feature include the first feature directly above and obliquely above the second feature, or only indicate that the first feature is higher in horizontal height than the second feature. The "under", "below" and "under" of the first feature to the second feature include the first feature directly below and obliquely below the second feature, or only indicate that the first feature is lower in horizontal height than the second feature.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0036] The antenna design used by the electronic cigarette develops towards the requirement of body metallization, and more stringent requirements are put forward for the antenna. It is difficult to design an antenna for a full-metal body, and the antenna cannot leak out of the metal body, resulting in that electromagnetic waves cannot be transmitted out, and even if some are radiated out, the efficiency is very low.

[0037] The existing scheme generally exposes the antenna on the side of the body by a little bit, so that the antenna has a certain clearance, and further improves the radiation efficiency of the antenna. The above method causes the entire body to be unable to achieve full-metal design, affects the ornamental nature of the product, and makes the processing complex and the cost increase.

[0038] The slot antenna is designed on a piece of metal plate or wall, and the length of the slot is half of the wavelength, i.e. about 60 mm at 2.45 GHz, and the feeding position is located at the middle position of the slot, generally the signal line for excitation is connected to one side of the slot, and the ground line for excitation is connected to the other side of the slot.

[0039] The most critical point is that the both sides of the slot antenna must be clear, at least 10 mm, and no metal is close to the slot antenna. Since the electronic cigarette body is small and thin, it is difficult to design an antenna under the premise of a full metal body. It should be noted that since the both ends of the electronic cigarette are provided with suction holes or charging holes, the full metal body mainly refers to the outer circumference of the electronic cigarette.

[0040] As shown in Figures 1-5 The embodiment provides a full metal shell electronic cigarette with a slot antenna, which comprises a shell 1, a cover 2 and a slot antenna 3, wherein the shell 1 comprises opposite first and second ends 101 and 102 along the length direction, the first end 11 is used for mounting a cartridge, and the second end 102 is provided with a groove 11 extending along the length direction of the shell 1, and the opening of the groove 11 is away from the cartridge; the cover 2 is arranged at the opening of the groove 11, and the groove 11 and the cover 2 form a mounting cavity; the slot antenna 3 comprises a ring-shaped part 31 and an intermediate part 32, the ring-shaped part 31 is arranged around the outer circumference of the intermediate part 32, and the ring-shaped part 31 and the intermediate part 32 form a ring-shaped slot 33, a feeding terminal 34 is arranged in the ring-shaped slot 33 and connects the ring-shaped part 31 and the intermediate part 32, an inductor 35 is arranged in the ring-shaped slot 33 and connects the ring-shaped part 31 and the intermediate part 32, and a capacitor 36 is arranged in the ring-shaped slot 33 and connects the ring-shaped part 31 and the intermediate part 32; the greater the value of the capacitor 36, the more the antenna shifts to low frequency. The length direction of the shell 1 is the X direction. After the profile of the ring-shaped slot 33 is determined, the actual length of the ring-shaped slot 33 can be changed by changing the width of the inductor 35, the actual length of the ring-shaped slot 33 limits the resonant frequency point, and the width L2 of the ring-shaped slot 33 affects the bandwidth of the antenna, and the width L2 of the ring-shaped slot 33 can be adjusted appropriately.

[0041] The slot antenna 3 is installed in the mounting cavity, and the slot antenna 3 is away from the groove bottom of the groove 11, and the plane where the ring-shaped slot 33 is located is perpendicular to the extension direction of the shell 1.

[0042] With the above structure, the clearance of the slot antenna 3 on both sides is realized, and since the plane where the annular slot 33 is located is perpendicular to the extension direction of the shell 1, the electromagnetic wave radiation direction of the slot antenna 3 is parallel to the extension direction of the shell 1. Therefore, the entire shell 1 can be made of metal material, and the metal material shell 1 improves the ornamental value of the electronic cigarette without affecting the electromagnetic wave radiation of the slot antenna 3. Moreover, the all-metal shell 1 has low processing difficulty and low cost.

[0043] In the embodiment, the cover 2 includes an annular sealing member 21 and an intermediate sealing member 22. The annular sealing member 21 is prepared by a nano injection molding process, and the annular sealing member 21 connects the intermediate sealing member 22 and the shell 1. In the embodiment, the intermediate sealing member 22 is made of metal or plastic material. The plastic part prepared by the nano injection molding process will not affect the radiation of the slot antenna 3, and can connect the intermediate sealing member 22 and the shell 1. The material of the annular sealing member 21 is plastic.

[0044] The annular slot 33 is square, the shape of the annular sealing member 21 is the same as that of the annular slot 33, the width between the inner side wall and the outer side wall of the annular sealing member 21 is L1, the width of the annular slot 33 is L2, and L1 is greater than or equal to L2. With the above structure, the radiation of the slot antenna 3 will not be affected.

[0045] In other embodiments, the shape of the annular slot 33 can be circular, elliptical, or other shapes that can adapt to the contour of the shell 1, without limitation.

[0046] To meet the radiation characteristics of the slot antenna 3, in the embodiment, the depth of the groove 11 is L3, and L3 is greater than or equal to 15 mm, and the distance between the slot antenna 3 and the groove bottom is greater than or equal to 15 mm. Of course, in other embodiments, the depth of the groove 11 can be set according to the requirements of the slot antenna 3, as long as the internal clearance of the slot antenna 3 meets the requirements of the slot antenna 3.

[0047] During the radiation process of the slot antenna 3, it may affect other electronic devices on the circuit board of the electronic cigarette. In the embodiment, the all-metal shell electronic cigarette with a slot antenna optionally includes a shielding member (not shown in the figure), which is arranged on the shell 1 and has a distance greater than or equal to 15 mm from the slot antenna 3. The above arrangement can protect the electronic devices from interference on the one hand, and the distance between the shielding member and the slot antenna 3 is large, which will not affect the radiation performance of the slot antenna 3.

[0048] Regarding the connection of the slot antenna 3 and the shell 1, in the embodiment, the annular part 31 is connected with the inner side wall of the groove 11. Specifically, the inner side wall of the groove 11 is provided with a support part 12, the support part 12 and one side of the annular part 31 abut, and the cover body 2 and the other side of the annular part 31 abut. The support part 12 and the cover body 2 clamp the slot antenna 3, avoid the slot antenna 3 from shaking, and improve the firmness of the installation of the slot antenna 3. Since the cover body 2 includes the nanometer injection-molded annular plugging part 21, the connection between the cover body 2 and the shell 1 is also more firm, and the end portion of the annular plugging part 21 pressurizes the annular part 31. Since the material is plastic and the hardness is low, the annular part 31 will not be scratched.

[0049] In the embodiment, the support part 12 is annular and is arranged around the inner side wall of the groove 11. The support part 12 is a step structure formed by milling the inner side wall of the groove 11. In other embodiments, the support part 12 can also be a plurality of support points protruding from the inner side wall of the groove 11, and the plurality of support points are annularly arranged uniformly around the inner side wall of the groove 11. In other embodiments, in order to reduce the cost, the outer side wall of the annular part 31 and the inner side wall of the groove 11 can be directly bonded.

[0050] When the electronic cigarette moves, the components such as the feed terminal 34 and the inductor 35 between the annular slots 33 are forced to drive the middle part 32. At this time, it may cause the feed terminal 34 and the annular part 31 and the inductor 35 and the annular part 31 to be in poor contact.

[0051] To solve the above problems, in the embodiment, the bottom of the groove 11 is provided with a support boss 13, and the middle part 32 is connected with one end of the support boss 13. The above arrangement makes the components such as the feed terminal 34 and the inductor 35 between the annular slots 33 not be forced, avoiding the poor contact.

[0052] In the embodiment, the shell 1 is made of metal, and the annular part 31 is electrically connected with the shell 1. By means of the above arrangement, the entire shell 1 forms a metal ground of the slot antenna 3, has a large ground, and improves the bandwidth and efficiency of the slot antenna 3.

[0053] The all-metal shell electronic cigarette with the slot antenna includes an RF coaxial line (not shown in the figure), one end of the RF coaxial line is connected with the slot antenna 3, and the other end is connected with the control system of the electronic cigarette. The specific way in which the RF coaxial line connects the control system and the slot antenna 3 is known to those skilled in the art. Alternatively, the core wire of the RF coaxial line is connected to the annular part 31, and the outer woven conductor is connected to the annular part 31.

[0054] In the embodiment, the all-metal shell electronic cigarette with the slot antenna includes an FPC or a PCB. Taking the PCB as an example, the slot antenna 3 is arranged on both sides of the PCB. The frequency bands of the slot antennas 3 on both sides of the PCB are different.

[0055] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation manners of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the implementation manners. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An electronic cigarette with an all-metal casing and a slotted antenna, characterized in that, include: The housing (1) includes a first end (101) and a second end (102) opposite to each other. The first end (101) is used to install a cigarette cartridge, and the second end (102) is provided with a groove (11). The groove (11) extends along the length direction of the housing (1), and the opening of the groove (11) is away from the cigarette cartridge. Cover (2), the cover (2) is placed over the opening of the groove (11), the groove (11) and the cover (2) form an installation cavity; The slot antenna (3) includes an annular portion (31) and a middle portion (32). The annular portion (31) is arranged around the outer periphery of the middle portion (32), and an annular slot (33) is formed between the annular portion (31) and the middle portion (32). The slot antenna (3) is installed in the mounting cavity, and the slot antenna (3) is away from the bottom of the groove (11). The plane of the annular slot (33) is perpendicular to the extension direction of the housing (1), and the slot antenna (3) has clearance on both sides.

2. The all-metal casing electronic cigarette with a slotted antenna according to claim 1, characterized in that, The cover (2) includes an annular sealing element (21) and an intermediate sealing element (22). The annular sealing element (21) is prepared by nano-injection molding process. The annular sealing element (21) connects the intermediate sealing element (22) and the shell (1).

3. The all-metal casing electronic cigarette with a slotted antenna according to claim 2, characterized in that, The shape of the annular sealing element (21) is the same as the shape of the annular gap (33). The width between the inner wall and the outer wall of the annular sealing element (21) is L1, and the width of the annular gap (33) is L2. L1 is greater than or equal to L2.

4. The all-metal casing electronic cigarette with a slotted antenna according to claim 1, characterized in that, The depth of the groove (11) is L3, and L3 is greater than or equal to 15mm, and the distance between the slot antenna (3) and the bottom of the groove (11) is greater than or equal to 15mm.

5. The all-metal casing electronic cigarette with a slotted antenna according to claim 1, characterized in that, The all-metal casing electronic cigarette with a slot antenna includes a shield, which is disposed on the casing (1) and the distance between the shield and the slot antenna (3) is greater than or equal to 15 mm.

6. The all-metal casing electronic cigarette with a slotted antenna according to any one of claims 1-5, characterized in that, The annular portion (31) is connected to the inner wall of the groove (11).

7. The all-metal casing electronic cigarette with a slotted antenna according to claim 6, characterized in that, The inner wall of the groove (11) is provided with a support (12), the support (12) and one side of the annular part (31) abut against each other, and the cover (2) abuts against the other side of the annular part (31).

8. The all-metal casing electronic cigarette with a slotted antenna according to claim 7, characterized in that, The support (12) is annular and is arranged around the inner wall of the groove (11).

9. The all-metal casing electronic cigarette with a slotted antenna according to claim 6, characterized in that, The bottom of the groove (11) is provided with a support boss (13), one side of the middle part (32) abuts against the support boss (13), and the other side abuts against the cover (2).

10. The all-metal casing electronic cigarette with a slotted antenna according to claim 1, characterized in that, The housing (1) is made of metal, and the annular part (31) is electrically connected to the housing (1).

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