Electronic cigarette

Abstract

The embodiment of the utility model provides an electronic cigarette. The electronic cigarette comprises a machine shell and a signal module. Wherein a containing cavity is formed in the machine shell, the containing cavity is provided with an opening, a first gap and a second gap are formed in the machine shell, the first gap and the second gap are connected and form a preset included angle, and the end, away from the second gap, of the first gap communicates with the opening; the first gap and the second gap enclose a part of the casing to form an antenna radiation branch knot, and the signal module is arranged in the accommodating cavity and electrically connected with the antenna radiation branch knot. According to the electronic cigarette, only the machine shell needs to be machined, the integrity of an original machine shell is not damaged, and the structural strength of the machine shell of the electronic cigarette can be effectively improved while the antenna function is achieved; in addition, in the mode, the whole electronic cigarette shell can be made of metal materials, the appearance integrity is good, the appearance effect of the electronic cigarette is guaranteed, and the product competitiveness is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic cigarettes, and specifically relates to an electronic cigarette. Background Art

[0002] With the development of science and technology, electronic cigarettes with wireless communication functions are becoming more and more popular among users. In order to realize the wireless communication of electronic cigarettes, electronic cigarettes need to be equipped with antennas. At the same time, in order to improve the user's holding experience and the grade of the equipment, the electronic cigarette casing is usually made of metal, but this metal casing will affect or even shield the antenna signal, resulting in the obstruction of the wireless communication function of the electronic cigarette.

[0003] In the related art, in order to realize the antenna function, an annular gap can be opened around the metal casing to radiate the antenna signal, or the casing can be set to a combination of metal and non-metal materials to avoid the shielding effect of the all-metal casing on the antenna. However, in the above methods, since the electronic cigarette casing is divided into two independent parts, it has a great impact on the overall structural strength of the electronic cigarette, thereby reducing the reliability of the electronic cigarette. Utility Model Content

[0004] The present application aims to provide an electronic cigarette to solve the problem that the existing electronic cigarettes have reduced the structural strength of the device in order to realize the antenna function.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The present application discloses an electronic cigarette, comprising: a housing and a signal module; wherein:

[0007] The casing is a metal casing, a accommodating cavity is provided in the casing, the accommodating cavity has an opening, a first slit and a second slit are provided on the casing, the first slit is connected to the second slit and are arranged at a preset angle, and the end of the first slit away from the second slit is connected to the opening; the first slit and the second slit enclose part of the casing to form an antenna radiation branch, and the signal module is arranged in the accommodating cavity and is electrically connected to the antenna radiation branch.

[0008] Optionally, the housing comprises a top end and a bottom end which are arranged in opposite directions, and the top end is used for connecting a cigarette holder;

[0009] The opening of the accommodating cavity is at least arranged at the top end.

[0010] Optionally, the accommodating cavity of the casing is provided with openings at the top and the bottom, and the number of the first gap and the second gap is multiple, one first gap is connected to one second gap, and multiple first gaps and multiple second gaps are enclosed to form multiple antenna radiation branches, wherein at least one antenna radiation branch is formed near the top opening and near the bottom opening.

[0011] Optionally, the housing further includes a filling portion, the filling portion is filled with a non-metal filler, and the non-metal filler is filled in the first gap and the second gap.

[0012] Optionally, the housing further includes a non-metallic coating layer, which is disposed on an outer surface of the housing and at least covers the filling portion.

[0013] Optionally, the signal module includes a radio frequency unit and a feeding unit, the radio frequency unit is used to transmit a radio frequency signal, and two ends of the feeding unit are electrically connected to the radio frequency unit and the antenna radiation branch respectively to transmit the radio frequency signal to the antenna radiation branch.

[0014] Optionally, the feeding unit includes a circuit board, a connecting line and a connecting piece, wherein the radio frequency unit is electrically connected to the circuit board and the connecting line, and two ends of the connecting piece are electrically connected to the connecting line and the antenna radiation branch respectively.

[0015] Optionally, the circuit board is provided with a ground wire, and the ground wire is electrically connected to the casing.

[0016] Optionally, the circuit board is at least one of a printed circuit board and a flexible circuit board, the connecting line includes at least one of a microstrip line, a coplanar waveguide, a stripline, a slotline and other radio frequency transmission lines, and the connecting part includes at least one of a metal spring clip, a metal spring needle, a metal probe and a coaxial line.

[0017] Optionally, the connecting member is a coaxial line, the coaxial line includes an outer conductor and an inner conductor, the outer conductor covers a portion of the inner conductor, and the inner conductor is electrically connected to the antenna radiation branch.

[0018] Optionally, the outer conductor is electrically connected to the casing.

[0019] In the embodiment of the present application, the housing of the electronic cigarette is provided with a first slit and a second slit that are interconnected. The first slit and the second slit enclose part of the housing to form an antenna radiation branch. The signal module is used to generate a radio frequency signal. Since the signal module is electrically connected to the antenna radiation branch, the radio frequency signal emitted by the signal module can be effectively radiated from the antenna radiation branch to the outside of the housing of the electronic cigarette, thereby realizing the wireless communication function of the electronic cigarette. This method of opening a slit in the housing of the electronic cigarette to realize the antenna function of the electronic cigarette only requires processing of the housing, without destroying the integrity of the original housing, and can effectively improve the structural strength of the housing of the electronic cigarette while realizing the antenna function; in addition, in this way, the housing of the electronic cigarette can be made of metal material as a whole, and the appearance is better in integrity, which ensures the appearance effect of the electronic cigarette and improves the competitiveness of the product.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of the structure of the electronic cigarette housing according to the embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the connection between a signal module and a housing of the electronic cigarette described in an embodiment of the present application;

[0024] Figure 3 yes Figure 2 A magnified schematic diagram of the middle part;

[0025] Figure 4 This is a schematic diagram of another signal module and housing connection of the electronic cigarette in the embodiment of the present application;

[0026] Figure 5 yes Figure 4 The enlarged schematic diagram of the middle B part;

[0027] Figure 6 is a schematic diagram of the electronic cigarette excitation port in different positions according to the embodiment of the present application;

[0028] Figure 7 is a schematic diagram of an electronic cigarette according to an embodiment of the present application having multiple antenna radiation branches;

[0029] Figure 8 is a schematic diagram of the current distribution of the electronic cigarette described in the embodiment of the present application;

[0030] Fig. 9This is the performance curve of the electronic cigarette antenna described in the embodiment of the present application.

[0031] Figure numerals: 10 - housing, 11 - accommodating cavity, 12 - antenna radiation branch, 13 - first gap, 14 - second gap, 20 - signal module, 201 - excitation port, 21 - radio frequency unit, 22 - feeding unit, 221 - circuit board, 222 - connecting line, 223 - connecting piece, 2231 - metal spring, 2232 - coaxial line, 22321 - outer conductor, 22322 - inner conductor, 22323 - solder joint. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0033] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] An embodiment of the present application discloses an electronic cigarette, in which a gap is opened on a casing of the electronic cigarette so that a part of the casing can form an antenna radiation branch. A radio frequency module is arranged inside the casing, and a radio frequency signal emitted by the radio frequency module is radiated by the antenna radiation branch, so that the electronic cigarette can have a wireless communication function.

[0037] The electronic cigarette provided in the embodiment of the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] Reference Figures 1 to 5 , shows a structural schematic diagram of the electronic cigarette described in the embodiment of the present application. As shown in the figure, the electronic cigarette disclosed in the embodiment of the present application may specifically include: a housing 10 and a signal module 20; wherein the housing 10 is a metal housing, and the housing 10 may be an aluminum alloy housing or a stainless steel housing. The present application does not specifically limit the specific material of the housing 10; a receiving cavity 11 is provided in the housing 10, and the receiving cavity 11 has an opening. A first slit 13 and a second slit 14 are provided on the housing 10, and the first slit 13 is connected to the second slit 14 and is arranged at a preset angle, and one end of the first slit 13 away from the second slit 14 is connected to the opening; the first slit 13 and the second slit 14 enclose part of the housing 10 to form an antenna radiation branch 12, and the signal module 20 is arranged in the receiving cavity 11 and is electrically connected to the antenna radiation branch 12.

[0039] Specifically, the first gap 13 and the second gap 14 form a roughly L-shaped gap structure and enclose an antenna radiation branch 12. The signal module 20 is arranged in the accommodating cavity 11 of the shell and is electrically connected to the antenna radiation branch 12, so as to transmit the radio frequency signal to the antenna radiation branch 12, thereby forming an antenna to effectively radiate electromagnetic wave signals and realize the wireless communication function of the electronic cigarette.

[0040] It should be noted that if Figure 6As shown, schematic diagrams of the positions of three types of excitation ports 201 are shown. The embodiment of the present application does not specifically limit the number and position of the excitation ports 201, that is, the embodiment of the present application does not specifically limit the number and position of the electrical connection between the signal module 20 and the antenna radiation branch 12. When the electrical connection positions of the signal module 20 and the antenna radiation branch 12 are different, the antenna input impedance will be different. It is preferred to place the antenna input impedance at a position close to the characteristic impedance of the device's RF system. The typical value of the characteristic impedance of the device's RF system is 50 ohms. When the antenna input impedance is significantly different from the characteristic impedance of the device's RF system, an additional impedance matching circuit may be added to adjust the antenna input impedance and optimize the antenna performance.

[0041] Reference Figure 8 , shows a schematic diagram of current distribution obtained by simulation of the electronic cigarette according to the embodiment of the present application, Figure 8 As shown, when the antenna of the embodiment of the present application is excited, the current on the antenna radiation branch 12 is unidirectionally distributed from the ground end on the right to the open end on the left, and no reverse current occurs, that is, the antenna solution of the embodiment of the present application can effectively radiate electromagnetic wave signals. Further, taking the device working in the Bluetooth frequency band as an example, Fig. 9 The antenna return loss and radiation efficiency curves are shown. In the Bluetooth frequency band (2.4GHz to 2.4835GHz), the antenna return loss is below -8dB. Correspondingly, the antenna radiation efficiency is above -4.2dB, which can well meet the device's Bluetooth communication needs.

[0042] Specifically, Figure 7 As shown, the length and width of the first slot 13 are L1 and W1 respectively, and the length and width of the second slot 14 are L2 and W2 respectively. Among them, the size of L1 and L2 affects the resonant frequency of the antenna. When L1 and L2 increase, the resonant frequency of the antenna changes to a low frequency, and when L1 and L2 decrease, the resonant frequency of the antenna changes to a high frequency. When the wireless communication frequency band of the device is higher, the size of L1 and L2 needs to be set smaller, and when the wireless communication frequency band of the device is lower, the size of L1 and L2 needs to be set larger. Therefore, based on the actual wireless communication frequency band of the device, by reasonably selecting the size of L1 and L2, the resonant frequency of the antenna can be adjusted to the wireless communication frequency band of the device to meet the wireless communication needs of the device.

[0043] Furthermore, the sizes of W1 and W2 will affect the radiation efficiency of the antenna. When W1 and W2 increase, the radiation efficiency of the antenna increases, and when W1 and W2 decrease, the radiation efficiency of the antenna decreases. At the same time, the size of W1 and W2 will also affect the structural strength of the casing 10. When W1 and W2 are larger, the structural strength of the overall casing 10 is weaker, and the antenna radiation branch 12 is more likely to deform when subjected to external force. Therefore, the selection of W1 and W2 requires a compromise between antenna performance and casing structural strength.

[0044] In practical applications, the performance of the antenna can be adjusted and optimized by adjusting the sizes of L1, L2, W1 and W2. This application does not specifically limit the sizes of the above-mentioned L1, L2, W1 and W2, as long as they can meet the wireless communication requirements of the device.

[0045] It should be noted that typical antenna performance includes the antenna's resonant frequency, return loss, radiation efficiency, directivity, polarization characteristics, etc. The antenna provided in the embodiment of the present application has strong applicability, and the various sizes of L1, L2, W1 and W2 do not affect the implementation of the antenna function of the present application, and can meet the needs of various wireless communication frequency bands, standards, and user scenarios of the device, typically including: 2G / 3G / 4G / 5G cellular mobile communications, Bluetooth, WiFi, Zigbee, Star Flash, NFC, UWB, GNSS, satellite communications, etc.

[0046] In addition, the antenna performance of the electronic cigarette provided in the embodiment of the present application is not only affected by the above-mentioned dimensions L1, W1, L2 and W2, but also by factors such as the various components of the device, the overall layout, the shape of the structural parts in the area near the antenna radiation branch 12, and the material selection. For example, for the material selection of the plastic structural parts near the antenna radiation branch 12, the smaller the loss factor of the material, the higher the radiation efficiency of the antenna.

[0047] Optionally, the shapes of the first slot 13 and the second slot 14 may be straight lines, or curves, oblique lines, waves, broken lines, irregular lines, etc. The antenna scheme has no specific restrictions on the routing pattern of the slot area.

[0048] In the embodiment of the present application, the side of the antenna radiation branch 12 close to the first slot 13 is an open end, and the side of the antenna radiation branch 12 away from the first slot 13 is a ground end, and the antenna radiation branch 12 is grounded through the ground end.

[0049] In the embodiment of the present application, the housing 10 includes a top end and a bottom end that are arranged in opposite directions, and the top end is used to connect the cigarette holder; the opening of the accommodating cavity 11 is at least arranged at the top end.

[0050] Specifically, an opening is provided at the top of the housing 10 and a cigarette holder is connected thereto, and the user can smoke the electronic cigarette through the cigarette holder, and the first slit 13 and the second slit 14 are enclosed at the top to form an antenna radiation branch 12. In actual applications, the user can smoke a cigarette or a cigarette cartridge through the cigarette holder, and at this time, the user usually holds the cigarette at a position close to the bottom of the housing 10, so it is preferred to set the opening at the top and form the antenna radiation branch 12 at the top, which is conducive to reducing the impact of the user's hand holding the housing 10 on the antenna radiation branch 12, ensuring the antenna performance, and thus ensuring that the electronic cigarette can normally realize the wireless communication function.

[0051] In the present application, refer to Figure 7 The accommodating cavity 11 of the casing 10 is provided with openings at the top and the bottom, and the number of the first slots 13 and the second slots 14 is multiple, one first slot 13 is connected to one second slot 14, and the multiple first slots 13 and the multiple second slots 14 are enclosed to form multiple antenna radiation branches 12, wherein at least one antenna radiation branch 12 is formed near the top opening and near the bottom opening.

[0052] Specifically, the plurality of first slots 13 are respectively connected to the plurality of second slots 14 to enclose and form a plurality of antenna radiation branches 12 , and the top end and the bottom end of the housing 10 each include at least one antenna radiation branch 12 .

[0053] It can be understood that by providing a plurality of first slots 13 and second slots 14 on the housing 10, a plurality of antennas can be formed, thereby obtaining better antenna performance. On the one hand, when a plurality of antennas are integrated into the device and these antennas work simultaneously, higher radiation power and better receiving sensitivity can be obtained, thereby improving the wireless communication performance of the device and the user experience. On the other hand, after integrating a plurality of antennas, when some of the antennas cannot work effectively for some reason, the other antennas may still work effectively, thereby ensuring that the device can still work normally.

[0054] In the embodiment of the present application, the housing 10 further includes a filling portion, which fills the first gap 13 and the second gap 14 .

[0055] Specifically, the thickness of the filling part may be slightly greater than the thickness of the housing 10, thereby ensuring the filling effect of the filler, which is beneficial to improving the overall structural strength of the housing 10. Preferably, the thickness of the filling part is equal to the thickness of the housing 10, which can ensure the user's grip and improve the user's experience. The thickness of the filling part may not be specifically limited in this application.

[0056] By providing a filling portion in the first gap 13 and the second gap 14 , the overall structural strength of the housing 10 can be enhanced. At the same time, since various parts are arranged inside the housing 10 , the filling portion can also shield and protect the parts inside the housing 10 .

[0057] In the embodiment of the present application, the filling portion is provided with a non-metallic filler.

[0058] Optionally, the filling part can be filled with plastic or other non-metal fillers, which is not specifically limited in the present application. When the filling part is filled with plastic, the material type of the plastic is preferably a material with the same appearance and color as the housing 10, so that the housing 10 can present a better overall appearance. In addition, from the perspective of antenna performance, the material type of the filling plastic is preferably a material with a low loss factor to obtain a higher antenna radiation efficiency.

[0059] In the embodiment of the present application, the housing 10 further includes a non-metallic coating layer, which is disposed on the outer surface of the housing 10 and at least covers the filling portion. The coating layer made of non-metallic material can reduce or eliminate the visual and tactile differences between the housing 10 and the non-metallic filler, so that the housing 10 presents a complete and integrated hand-held feeling and appearance. It should be noted that the housing 10 may not be provided with a non-metallic coating layer, and the present application does not specifically limit this.

[0060] Specifically, the coating layer can be sprayed or bonded on the outer surface of the filling part, preferably by spraying, so as to achieve a better appearance transition with the housing 10 and enhance the appearance of the device.

[0061] In the embodiment of the present application, the signal module 20 includes a RF unit 21 and a feeding unit 22. The RF unit 21 is used to transmit RF signals. The two ends of the feeding unit 22 are respectively electrically connected to the RF unit 21 and the antenna radiating branch 12 to transmit the RF signal to the antenna radiating branch 12.

[0062] Specifically, the signal module 20 is arranged in the accommodating cavity 11 of the casing 10, and the RF unit 21 is electrically connected to the feeding unit 22 and the antenna radiation branch 12 in sequence, so that the RF signal emitted by the RF unit 21 can be transmitted from the feeding unit 22 to the antenna radiation branch 12, and radiated to the outside of the device through the antenna radiation branch 12.

[0063] Furthermore, the feeding unit 22 includes a circuit board 221, a connecting line 222 and a connecting member 223, wherein the RF unit 21 is electrically connected to the circuit board 221 and the connecting line 222, and two ends of the connecting member 223 are electrically connected to the connecting line 222 and the antenna radiation branch 12 respectively.

[0064] In the embodiment of the present application, the circuit board 221 is provided with a ground wire, and the ground wire is electrically connected to the housing 10 .

[0065] It should be noted that in the embodiment of the present application, when the ground wire of the circuit board 221 is electrically connected to the housing 10, a more stable reference ground can be obtained, which is beneficial to improving the stability of RF signal transmission. In addition, the electrical connection between the ground wire of the circuit board 221 and the housing 10 is also beneficial to reducing the impact of the antenna and RF module on other internal parts in the embodiment of the present application.

[0066] By way of example, the circuit board 221 is at least one of a printed circuit board and a flexible circuit board, wherein the substrate of the printed circuit board can be a ceramic substrate, a glass fiber cloth substrate, a fluorinated polymer material substrate, etc., and the base material of the flexible circuit board can be polyimide, polyester film, etc., and the present application does not specifically limit the substrate material of the circuit board 221; the connecting line 222 includes at least one of a microstrip line, a coplanar waveguide, a strip line, a slot line and other radio frequency transmission lines, and the connecting part 223 includes at least one of a metal spring 2231, a metal spring needle, a metal probe, and a coaxial line 2232. The material of the connecting part 223 is preferably stainless steel or copper to have better structural strength and conductivity.

[0067] It should be noted that when the connector 223 selects a structure such as a metal spring 2231, a metal spring needle or a metal probe, due to the size limitation, the circuit board 221 usually needs to be set closer to the antenna radiation branch 12. When the connector 223 selects a coaxial line 2232, since the coaxial line 2232 has a more flexible length and better flexibility, the position tolerance of the circuit board 221 is higher. In practical applications, the connector 223 can be selected according to the layout relationship between various internal structures in the housing 10. For example, when the circuit board 221 is set close to the opening of the housing 10, any one of the metal spring 2231, the metal spring needle, the metal probe, and the coaxial line 2232 can be selected. When the circuit board 221 is far from the opening of the housing 10, the coaxial line 2232 can be selected as the connector 223 for transmitting radio frequency signals. This application does not make specific restrictions on this.

[0068] It can be understood that the present application can realize the antenna function by using the above multiple structures. Therefore, the present application has a wide range of applications, and different feeding methods can be selected according to different application scenarios and product positioning, and the wireless communication function of the electronic cigarette can be realized. In addition, the present application does not specifically limit the shape, position, orientation, etc. of the circuit board 221. In actual applications, it can be determined based on the structural characteristics and assembly relationship of each internal part. The position of the circuit board 221 is preferably close to the antenna radiation branch 12, which is conducive to reducing the size of the connector 223 and reducing the occupation of the internal space. At the same time, it reduces the RF signal transmission loss between the antenna radiation branch 12 and the RF unit 21, and improves the antenna performance.

[0069] In actual applications, multiple circuit boards 221 may be provided inside the housing 10, and the RF unit 21 may be provided on one of the circuit boards 221 and electrically connected to the connector 223, so as to realize the interconnection of RF signals. In addition, in addition to the connector 223, the circuit board 221 may also be provided with various components, such as capacitors, inductors, resistors, connectors, foam, MCU, filters, sensors, thermocouples, RF chips / components, etc., according to the functional requirements of the device, so as to realize various functions of the device, such as power on, power off, heating coils, temperature control, etc. Accordingly, the circuit board 221 also needs to arrange corresponding metal traces to connect the various components according to the functional requirements of the device to ensure the normal operation of the device.

[0070] In an optional embodiment of the present application, Figure 2 , Figure 3 As shown, the connector 223 in the feed unit 22 is a metal spring 2231, and the two ends of the metal spring 2231 are electrically connected to the antenna radiation branch 12 and the RF module respectively. The metal spring 2231 elastically abuts against the antenna radiator through its own elasticity to achieve electrical connection with the antenna radiation branch 12. In addition, the metal spring 2231 and the antenna radiation branch 12 can also be electrically connected by locking screws, buckles, mortise and tenon joints, bonding, etc., which is not specifically limited in this application.

[0071] In another optional embodiment of the present application, Figure 4 , Figure 5 As shown, the connecting member 223 in the feeding unit 22 is a coaxial line 2232 , wherein the coaxial line 2232 includes an outer conductor 22321 and an inner conductor 22322 , the outer conductor 22321 covers a portion of the inner conductor 22322 , and the inner conductor 22322 is electrically connected to the antenna radiation branch 12 .

[0072] For example, the inner conductor 22322 can be electrically connected to the antenna radiating branch 12 by welding and a welding point 22323 is formed at the connection. The inner conductor 22322 can also be electrically connected to the antenna radiating branch 12 by one or more of locking screws, elastic abutment, snaps, mortise and tenon, bonding and the like. The present application does not specifically limit the electrical connection method between the inner conductor 22322 and the antenna radiating branch 12.

[0073] Furthermore, the outer conductor 22321 can be electrically connected to the housing 10. When the outer conductor 22321 is electrically connected to the housing 10, a more stable reference ground can be obtained, thereby improving the stability of the RF signal transmission. Similarly, the outer conductor 22321 can also be electrically connected to the housing 10 by one or more of locking screws, elastic abutment, snaps, mortise and tenon, bonding, etc. It should be noted that in the embodiment of the present application, the transmission of RF signals can also be achieved without the outer conductor 22321 being electrically connected to the housing 10, thereby achieving the antenna function.

[0074] Optionally, in the embodiment of the present application, the connector 223 of the feed unit 22 may also include a coaxial line 2232 and a metal spring 2231 at the same time, wherein the metal spring 2231 is connected between the inner conductor 22322 of the coaxial line 2232 and the antenna radiation branch 12 to transmit the radio frequency signal to the antenna radiation branch 12.

[0075] In practical applications, adding a metal spring 2231 between the inner conductor 22322 and the antenna radiation branch 12 can assist in achieving the electrical connection between the inner conductor 22322 and the antenna radiation branch 12, and enhance the connection strength between the two. Similarly, the connector 223 can also be a combination of a coaxial line 2232 and a metal spring needle, a combination of a coaxial line 2232 and a metal probe, etc. The present application does not specifically limit the combination relationship of the connector 223.

[0076] In summary, in the embodiment of the present application, the housing of the electronic cigarette is provided with a first slit and a second slit that are interconnected. The first slit and the second slit enclose part of the housing to form an antenna radiation branch. The signal module is used to generate a radio frequency signal. Since the signal module is electrically connected to the antenna radiation branch, the radio frequency signal emitted by the signal module can be effectively radiated from the antenna radiation branch to the outside of the housing of the electronic cigarette, thereby realizing the wireless communication function of the electronic cigarette. This method of opening a slit in the housing of the electronic cigarette to realize the antenna function of the electronic cigarette only requires processing of the housing, without destroying the integrity of the original housing, and can effectively improve the structural strength of the housing of the electronic cigarette while realizing the antenna function; in addition, in this way, the housing of the electronic cigarette can be made of metal material as a whole, and the appearance is better in integrity, which ensures the appearance effect of the electronic cigarette and improves the competitiveness of the product.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 present application. 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 any one or more embodiments or examples in a suitable manner.

[0078] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic cigarette, characterized in that: include: A housing and a signal module; wherein, The housing is a metal housing, a receiving cavity is provided in the housing, the receiving cavity has an opening, a first slit and a second slit are provided on the housing, the first slit is connected to the second slit and is arranged at a preset angle, and an end of the first slit away from the second slit is connected to the opening; The first slit and the second slit enclose a portion of the housing to form an antenna radiation branch. The signal module is disposed in the accommodating cavity and is electrically connected to the antenna radiation branch.

2. The electronic cigarette according to claim 1, characterized in that: The housing comprises a top end and a bottom end which are arranged in a direction away from each other, wherein the top end is used for connecting a cigarette holder; The opening of the accommodating cavity is at least arranged at the top end.

3. The electronic cigarette according to claim 2, characterized in that: The accommodating cavity of the casing is provided with openings at the top and the bottom, and the number of the first gap and the second gap is multiple, one first gap is connected to one second gap, and multiple first gaps and multiple second gaps are enclosed to form multiple antenna radiation branches, wherein at least one antenna radiation branch is formed near the top opening and near the bottom opening.

4. The electronic cigarette according to claim 1, characterized in that: The housing further includes a filling portion, wherein the filling portion is filled with a non-metal filler, and the non-metal filler is filled in the first gap and the second gap.

5. The electronic cigarette according to claim 4, characterized in that: The housing further comprises a non-metallic coating layer, which is arranged on the outer surface of the housing and at least covers the filling portion.

6. The electronic cigarette according to claim 1, characterized in that: The signal module includes a radio frequency unit and a feeding unit. The radio frequency unit is used to transmit radio frequency signals. Two ends of the feeding unit are electrically connected to the radio frequency unit and the antenna radiation branch respectively to transmit the radio frequency signal to the antenna radiation branch.

7. The electronic cigarette according to claim 6, characterized in that: The feeding unit includes a circuit board, a connecting line and a connecting piece, wherein the radio frequency unit is electrically connected to the circuit board and the connecting line, and two ends of the connecting piece are electrically connected to the connecting line and the antenna radiation branch respectively.

8. The electronic cigarette according to claim 7, characterized in that: The circuit board is provided with a ground wire, and the ground wire is electrically connected to the housing.

9. The electronic cigarette according to claim 7, characterized in that: The circuit board is at least one of a printed circuit board and a flexible circuit board, the connecting line includes at least one of a radio frequency transmission line such as a microstrip line, a coplanar waveguide, a strip line, a slot line, etc., and the connecting part includes at least one of a metal spring, a metal spring needle, a metal probe, and a coaxial line.

10. The electronic cigarette according to claim 9, characterized in that: The connecting member is a coaxial line, and the coaxial line includes an outer conductor and an inner conductor. The outer conductor covers a part of the inner conductor, and the inner conductor is electrically connected to the antenna radiation branch.

11. The electronic cigarette according to claim 10, characterized in that: The outer conductor is electrically connected to the housing.

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