Antenna and electronic equipment

Abstract

The embodiment of the utility model provides an antenna and electronic equipment, the antenna comprises a metal shell and a conductive box body, the conductive box body is connected with the metal shell, the conductive box body and the metal shell are enclosed to form a cavity with an opening, the conductive box body is provided with a partition groove, and the partition groove is communicated with the metal shell. The partition groove extends into the conductive box body from the edge of one side, corresponding to the opening, of the conductive box body. According to the antenna provided by the embodiment of the invention, the partition groove is formed in the conductive box body and extends to the interior of the conductive box body from the edge of one side, corresponding to the opening, of the conductive box body, so that the length of the outer edge of the conductive box body can be increased, the conductive path of the antenna is increased, and the electrical length of the antenna is increased; the center frequency point of electromagnetic waves generated by the antenna shifts to low frequency, and the low-frequency performance of the antenna is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of antenna design, and particularly to an antenna and an electronic device. Background Art

[0002] With the continuous development of communication technologies, electronic devices such as mobile phones and tablets have evolved from carrying simple functions to supporting rich media such as voice, data, music, and video, and can also be extended to install various application APPs to meet various needs of people.

[0003] Meanwhile, the manufacturing process is constantly improving, and consumers are increasingly paying attention to the appearance and size of electronic devices, leading to the continuous development of electronic devices towards miniaturization, intelligence, thinness, lightness, and narrow borders. The miniaturization trend of electronic devices affects the installation space of antennas inside the electronic devices, and thus affects the low-frequency performance of the antennas. Utility Model Content

[0004] The present disclosure provides an antenna and an electronic device to address the deficiencies in the related art.

[0005] In a first aspect, an embodiment of the present disclosure provides an antenna, including: a metal housing and a conductive box body. The conductive box body is connected to the metal housing, and the conductive box body and the metal housing enclose a cavity with an opening. The conductive box body is provided with a partition groove that extends from one side edge of the conductive box body corresponding to the opening towards the inside of the conductive box body.

[0006] Preferably, the antenna further includes a feeding point and a grounding point, and the partition groove is located between the feeding point and the grounding point.

[0007] Preferably, the partition groove is arranged closer to the feeding point than the grounding point.

[0008] Preferably, the distance from the opening position of the partition groove to the feeding point is 1 - 3 mm.

[0009] Preferably, the partition groove is a rectangular groove that extends from one side edge of the conductive box body corresponding to the opening towards the inside of the conductive box body along a first direction, and the length of the rectangular groove extending along the first direction is less than the length of the conductive box body in the first direction.

[0010] Preferably, the partition groove includes a first groove body and a second groove body. The first groove body extends from one side edge of the conductive box body corresponding to the opening towards the inside of the conductive box body along the first direction, and the length of the first groove body extending along the first direction is less than the length of the conductive box body in the first direction;

[0011] The second tank body communicates with the first tank body, and the second tank body extends along a second direction intersecting the first direction, and the distance between the second tank body and any side edge of the conductive box body is greater than 0.

[0012] Preferably, the conductive box body includes a bracket and a conductive layer. The conductive layer wraps around the bracket and is connected to the metal shell. The bracket, the conductive layer and the metal shell enclose a cavity with an opening.

[0013] The conductive layer is provided with a partition groove, and the partition groove extends from one side edge of the conductive layer corresponding to the opening into the interior of the conductive layer.

[0014] Preferably, the conductive box body includes a circuit board and a shielding cover. The circuit board is connected to the metal shell, and the shielding cover is connected to the side of the circuit board away from the metal shell; the shielding cover and the metal shell enclose a cavity with an opening.

[0015] The shielding cover is provided with a partition groove, and the partition groove extends from one side edge of the shielding cover corresponding to the opening into the interior of the shielding cover.

[0016] Preferably, the conductive box body includes a main body part and a bent part. The bent part is formed at at least part of the edge of the main body part and bends towards the direction of the metal shell, and the bent part is connected to the metal shell.

[0017] The main body part, the bent part and the metal shell enclose the cavity, and an opening is formed between the edge of the main body part where the bent part is not formed and the metal shell.

[0018] The partition groove is located in the main body part and extends from one side edge of the main body part corresponding to the opening into the interior of the main body part.

[0019] Preferably, the cavity includes one opening, and the feeding point and the grounding point are both arranged on one side edge of the conductive box body corresponding to the opening.

[0020] Preferably, the cavity includes two adjacent openings;

[0021] The feeding point and the grounding point are both arranged on the same side edge of the conductive box body corresponding to any one of the openings; or

[0022] The feeding point is arranged on one side edge of the conductive box body corresponding to one of the openings, and the grounding point is arranged on one side edge of the conductive box body corresponding to the other opening; or

[0023] One of the feeding point and the grounding point is disposed at the junction of the conductive box body corresponding to the two openings, and the other of the feeding point and the grounding point is disposed at one side edge of the conductive box body corresponding to any one of the openings.

[0024] In a second aspect, an embodiment of the present disclosure provides an electronic device, including a display screen and the antenna as described in the first aspect, where the display screen is disposed on the metal housing and connected to the conductive box body.

[0025] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

[0026] As can be seen from the above embodiments, for the antenna of the present disclosure, a cavity with an opening is formed by enclosing the conductive box body and the metal housing, constituting a cavity antenna with an opening. By opening a partition groove in the conductive box body, and making the partition groove extend from one side edge of the conductive box body corresponding to the opening to the inside of the conductive box body, the outer edge length of the conductive box body can be increased, thereby increasing the conduction path of the antenna, increasing the electrical length of the antenna, shifting the center frequency point of the electromagnetic wave generated by the antenna to the low frequency, and improving the low-frequency performance of the antenna.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0029] Figure 1 is a partial cross-sectional schematic view of an electronic device shown according to an exemplary embodiment;

[0030] Figure 2 is a partial cross-sectional schematic view of an electronic device shown according to another exemplary embodiment;

[0031] Figure 3 is a front schematic view of an antenna shown according to an exemplary embodiment;

[0032] Figure 4 is a front schematic view of an antenna shown according to another exemplary embodiment;

[0033] Figure 5 is a schematic diagram of the internal conduction path of an antenna in the related art;

[0034] Figure 6 is a front schematic view of an antenna shown according to another exemplary embodiment;

[0035] Figure 7The frequency diagram obtained by simulation of the antenna shown according to an exemplary embodiment.

[0036] Reference numerals: metal housing 10, bracket 20, conductive layer 21, circuit board 22, shielding cover 23, conductive box body 30, opening 40, cavity 41, partition groove 50, main body portion 31, bent portion 32, first edge 33, second edge 34, feeding point 35, grounding point 36, first conduction path 37, second conduction path 38, first groove body 51, second groove body 52. Detailed implementation manners

[0037] Here, the exemplary embodiments will be described in detail, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0038] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0039] To facilitate understanding of the technical solution of the present disclosure, the antenna and the electronic device of the present disclosure will be introduced in detail below with reference to the drawings. Without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0040] See Figure 1-4 as shown in Figure 1 is a partial cross-sectional schematic view of an electronic device shown according to an exemplary embodiment, Figure 2 is a partial cross-sectional schematic view of an electronic device shown according to another exemplary embodiment; Figure 3 is a front schematic view of an antenna shown according to an exemplary embodiment, Figure 4 is a front schematic view of an antenna shown according to another exemplary embodiment, Figure 3 and Figure 4 The front schematic view of the antenna in is also a schematic view of the side of the antenna facing the metal housing.

[0041] The embodiments of the present disclosure provide an antenna, which can be applied to electronic products such as mobile phones, tablet computers, laptop computers, smart glasses, smart watches, smart bracelets, and wearable devices.

[0042] The antenna includes: a metal housing 10 and a conductive box body 30. The conductive box body 30 is connected to the metal housing 10, and the conductive box body 30 and the metal housing 10 enclose a cavity 41 with an opening 40. The conductive box body 30 is provided with a partition groove 50, and the partition groove 50 extends from one side edge of the conductive box body 30 corresponding to the opening 40 towards the inside of the conductive box body 30.

[0043] As can be seen from the above embodiments, for the antenna of the present disclosure, a cavity 41 with an opening 40 is formed by enclosing the conductive box body 30 and the metal housing 10 to constitute an antenna with a cavity 41 having an opening 40. By providing a partition groove 50 in the conductive box body 30, such that the partition groove 50 extends from one side edge of the conductive box body 30 corresponding to the opening 40 towards the inside of the conductive box body 30, the outer edge length of the conductive box body 30 can be increased, thereby increasing the conductive path of the antenna, increasing the electrical length of the antenna, shifting the center frequency point of the electromagnetic wave generated by the antenna towards the low frequency, and improving the low-frequency performance of the antenna.

[0044] The antenna of the present disclosure can be either an antenna of the conductive layer 21 type or an antenna of the shielding cover 23 type, and the present disclosure does not limit this.

[0045] In Figure 1 In the illustrated embodiment, the antenna is an antenna of the conductive layer 21 type. The conductive box body 30 includes a bracket 20 and a conductive layer 21. The conductive layer 21 wraps around the bracket 20 and is connected to the metal housing 10. The bracket 20, the conductive layer 21, and the metal housing 10 enclose a cavity 41 with an opening 40. The conductive layer 21 is provided with a partition groove 50, and the partition groove 50 extends from one side edge of the conductive layer 21 corresponding to the opening 40 towards the inside of the conductive layer 21.

[0046] Optionally, the bracket 20 may include a plastic bracket 20 or a bracket 20 made of other insulating materials, which can support the conductive layer 21 and increase the stability of the conductive layer 21. The conductive layer 21 may be a flexible printed circuit board (FPC, Flexible Printed Circuit), or other conductive layers 21, such as an LDS (Laser-Direct-structuring) laser forming process layer, a PDS (Printing Direct Structure) pad printing process layer, etc.

[0047] In Figure 2In the illustrated embodiment, the antenna is an antenna of the shield case 23 type. The conductive box body 30 includes a circuit board 22 and a shield case 23. The circuit board 22 is connected to the metal housing 10, and the shield case 23 is connected to the side of the circuit board 22 away from the metal housing 10. The shield case 23 and the metal housing 10 enclose a cavity 41 with an opening 40. The shield case 23 is provided with a partition groove 50, and the partition groove 50 extends from one side edge of the shield case 23 corresponding to the opening 40 towards the inside of the shield case 23.

[0048] Optionally, the circuit board 22 can be a printed circuit board 22 (PCB, Printed Circuit Board), and the shield case 23 can be made of a metal material such as copper, aluminum, or steel that has both electrical conductivity and a certain support strength. Optionally, the shield case 23 and the circuit board 22 can be directly welded using the SMT welding method, or connected through a shrapnel or conductive foam. The circuit board 22 and the metal housing 10 can be directly welded using the SMT welding method, or connected through a shrapnel or conductive foam.

[0049] In Figure 1 and Figure 2 In the illustrated embodiment, the conductive box body 30 includes a main body portion 31 and a bent portion 32. The bent portion 32 is formed at at least a part of the edge of the main body portion 31 and bends towards the direction of the metal housing 10, and the bent portion 32 is connected to the metal housing 10. The main body portion 31, the bent portion 32, and the metal housing 10 enclose a cavity 41, and an opening 40 is formed between the edge of the main body portion 31 where the bent portion 32 is not formed and the metal housing 10.

[0050] The partition groove 50 is located in the main body portion 31 and extends from one side edge of the main body portion 31 corresponding to the opening 40 towards the inside of the main body portion 31. It can be understood that the main body portion 31 has a larger area than the bent portion 32, which is convenient for setting the position of the slot, and the main body portion 31 is relatively flat compared to the bent portion 32, which is convenient for slot processing. The partition groove 50 is a through groove and penetrates the main body portion 31 in the thickness direction of the main body portion 31. It can be understood that only when the partition groove 50 is a through groove can the electrical connection between the two sides of the main body portion 31 separated by the partition groove 50 be disconnected, making the edge of the partition groove 50 also become a part of the edge of the conductive box body 30 and increasing the edge length of the conductive box body 30. Since the current in the antenna radiates along the edge, the conductive path of the antenna can be increased.

[0051] In some preferred embodiments, the metal housing 10 can include a bottom wall 11 and a side wall 12 connected to the bottom wall 11, and the conductive box body 30 is connected to the bottom wall 11. The bottom wall 11 and the side wall 12 can be integrally formed to form a unibody (one-piece formed) metal rear shell.

[0052] In some alternative embodiments, the main body portion 31 of the conductive box body 30 is rectangular. Three edges of the main body portion 31 are bent towards the bottom wall 11 of the metal housing 10 to form bent portions 32 and are connected to the bottom wall 11 of the metal housing 10, or two edges of the main body portion 31 are bent towards the bottom wall 11 of the metal housing 10 to form bent portions 32 and are connected to the bottom wall 11 of the metal housing 10. One edge of the main body portion 31 close to the side wall 12 of the metal housing 10 is connected to the side wall of the metal housing 10; the other edge leaves an opening 40. Thus, a structural form is achieved in which three sides of the conductive box body 30 are connected to the metal housing 10 and one side leaves an opening 40, so that the cavity 41 includes an opening 40.

[0053] In some other alternative embodiments, two adjacent edges of the main body portion 31 are left vacant. The bent portions 32 are formed on the other edges of the main body portion 31 and are bent towards the bottom wall 11 of the metal housing 10, and the bent portions 32 are connected to the bottom wall 11 of the metal housing 10; or one of the other edges of the main body portion 31 is bent towards the bottom wall 11 of the metal housing 10 to form a bent portion 32 and is connected to the bottom wall 11 of the metal housing 10. One edge of the main body portion 31 close to the side wall 12 of the metal housing 10 is connected to the side wall of the metal housing 10. Two adjacent openings 40 are formed between the two vacant adjacent edges of the main body portion 31 and the metal housing 10. Thus, a structural form is achieved in which two adjacent sides of the conductive box body 30 are connected to the metal housing 10 and two adjacent sides leave openings 40, so that the cavity 41 includes two adjacent openings 40.

[0054] Please also refer to Figure 3-4 In Figure 3 and Figure 4 In the embodiments shown, the antenna further includes a feeding point 35 and a grounding point 36, and the partition groove 50 is located between the feeding point 35 and the grounding point 36.

[0055] In Figure 3 In the embodiment shown, the cavity 41 includes an opening 40, and both the feeding point 35 and the grounding point 36 are provided on one side edge of the conductive box body 30 corresponding to the opening 40, that is, both the feeding point 35 and the grounding point 36 are located on the first edge 33 of the conductive box body 30.

[0056] When the cavity 41 includes two adjacent openings 40, the conductive box body 30 includes two adjacent edges corresponding to the two adjacent openings 40, that is, Figure 3 the first edge 33 and the second edge 34 shown. At this time, there are the following multiple options for the setting of the feeding point 35 and the grounding point 36.

[0057] Setting method one:

[0058] The feeding point 35 and the grounding point 36 can both be provided on the same side edge of the conductive box body 30 corresponding to any one of the openings 40. That is, the feeding point 35 and the grounding point 36 can both be provided on the first edge 33, or the feeding point 35 and the grounding point 36 can both be provided on the second edge 34.

[0059] Setting method two:

[0060] The feeding point 35 is provided on one side edge of the conductive box body 30 corresponding to one of the openings 40, and the grounding point 36 is provided on one side edge of the conductive box body 30 corresponding to the other opening 40. That is, the feeding point 35 is provided on the first edge 33, and the grounding point 36 is provided on the second edge 34. In Figure 3 the illustrated embodiment, this setting method is adopted. It is also possible that the feeding point 35 is provided on the second edge 34 and the grounding point 36 is provided on the first edge 33.

[0061] Setting method three:

[0062] One of the feeding point 35 and the grounding point 36 is provided at the junction of the conductive box body 30 corresponding to the two openings 40, and the other of the feeding point 35 and the grounding point 36 is provided on one side edge of the conductive box body 30 corresponding to any one of the openings 40. That is, the feeding point 35 can be provided at the junction of the two openings 40, the grounding point 36 can be located on the first edge 33 or the second edge 34, or the grounding point 36 is provided at the junction of the two openings 40, and the feeding point 35 is provided on the first edge 33 or the second edge 34. The above settings of the feeding point 35 and the grounding point 36 can be flexibly configured according to the actual needs of the electronic device. The partition groove is located between the feeding point 35 and the grounding point 36, and is not affected by whether the cavity 41 has one opening 40 or two openings 40, nor is it affected by the specific setting positions of the feeding point and the grounding point.

[0063] Please also refer to Figure 3 and Figure 5 , Figure 3 which is a front view structural schematic diagram of the antenna provided by the present disclosure, and the conductive path of the antenna is marked. Figure 5 is a schematic diagram of the internal conductive path of the antenna in the related art. Since the current in the antenna moves along the edge of the conductive box body 30 from the feeding point 35 to the grounding point 36 for radiation to form electromagnetic waves. As Figure 5 shown, when the partition groove 50 is not opened, the internal conductive path of the antenna is the first conductive path 37. The length of the first conductive path 37 is the distance from the feeding point 35 along the edge of the conductive box body 30 to the grounding point.

[0064] Please also refer to Figure 3 ,as Figure 3 shown, Figure 3The shown antenna is provided with a partition slot 50, and the partition slot 50 is arranged between the feeding point 35 and the grounding point 36. The partition slot 50 blocks the current between the feeding point 35 and the grounding point 36, and guides the current located between the feeding point 35 and the grounding point 36 to move along the edge of the partition slot 50. That is, the current moves from the feeding point 35 along the edge of the conductive box body 30 to the partition slot 50, moves along the edge of the partition slot 50 to the edge of the conductive box body 30, and then flows along the edge of the conductive box body 30 to the grounding point 36. This current flow path is the second conduction path 38. It can be understood that the length of the second conduction path 38 is the distance from the feeding point 35 along the edge of the conductive box body 30 to the grounding point plus the edge distance of the partition slot 50. Compared with the case where the partition slot 50 is not provided, the conduction path of the antenna is increased, and the electrical length of the antenna is increased.

[0065] When the positions of the feeding point 35 and the grounding point 36 are fixed, after the partition slot 50 is opened, the length of the movement along the edge of the partition slot 50 is increased, thereby increasing the electrical length of the antenna. Because the electrical length of the current generating the electromagnetic wave is proportional to the wavelength, and is generally one-quarter wavelength, and the wavelength of the electromagnetic wave is inversely proportional to the frequency of the electromagnetic wave. Therefore, in the case of the same cavity 41 area and the same layout of the feeding point 35 and the grounding point 36, compared with the antenna without the partition slot 50, by increasing the electrical length of the antenna, the frequency of the antenna can be effectively reduced, and the center frequency of the antenna can be shifted to a lower frequency.

[0066] In some preferred embodiments, the partition slot 50 is arranged closer to the feeding point 35 than to the grounding point 36. During the process of the current moving to generate electromagnetic waves, the current at the feeding point 35 is the largest. Setting the partition slot 50 closer to the feeding point 35 can more efficiently reduce the frequency of the antenna.

[0067] In some preferred embodiments, the distance between the opening position of the partition slot 50 and the feeding point 35 is 1-3 mm. Because the closer the partition slot 50 is to the feeding point 35, the better the frequency reduction effect. However, during the actual production of the antenna, the conductive box body 30 needs to be connected to the feeding point 35, and the partition slot 50 also needs to be opened on the conductive box body 30. In order to ensure the structural stability of the conductive box body 30 and prevent curling, the partition slot 50 cannot be infinitely close to the feeding point 35. Generally, the distance between the opening position of the partition slot 50 and the feeding point 35 is 1-3 mm, preferably 2 mm, to achieve a balance between the frequency reduction effect and the structural stability.

[0068] It can be understood that in the present disclosure, the partition groove 50 is opened at the edge of the conductive box body 30, which cuts off the electrical connection between the edges of the conductive box body 30 where the partition groove 50 is located, and guides the current to move along the edge of the partition groove 50. In the present disclosure, the edge of the partition groove 50 is regarded as a part of the edge of the conductive box body 30, and the edge of the partition groove 50 is used to change the current path. Therefore, the shape of the partition groove 50 is not limited in the present disclosure. It can be a circular groove, an arc groove, an S-shaped groove, a rectangular groove, etc. As long as the partition groove 50 has an outer edge and can be connected to the original edge of the conductive box body 30, the purpose of increasing the conductive path can be achieved. It should be noted that the shape of the conductive path affected by the partition groove 50 is determined according to the shape of the outer edge of the partition groove 50. Specifically, the conductive path affected by the partition groove 50 extends along the outer edge of the partition groove 50. For the convenience of grooving processing and industrial production, the partition groove 50 preferably has a regular shape.

[0069] Please refer back to Figure 3 , in Figure 3 In the shown embodiment, the partition groove 50 is a rectangular groove, which is convenient for processing. The rectangular groove extends from one edge of the conductive box body 30 corresponding to the opening 40 along the first direction (Y direction) into the interior of the conductive box body 30, and the length of the rectangular groove extending along the first direction is less than the length of the conductive box body 30 in the first direction. In this way, the end of the rectangular groove far from the opening 40 can be located inside the conductive box body 30, avoiding the end of the rectangular groove far from the opening 40 from penetrating the conductive box body 30, resulting in the discontinuity of the edge of the rectangular groove and preventing the current from moving from the feeding point 35 to the grounding point 36, and thus the electromagnetic wave cannot be generated. In this embodiment, the first direction Y direction is parallel to the width direction of the conductive box body 30. In other alternative embodiments, the first direction Y direction can also be inclined with respect to the width direction of the conductive box body 30. It can be set according to actual needs, and the present disclosure does not limit this.

[0070] Please refer to Figure 6 , Figure 6 is a front view of the antenna shown according to another exemplary embodiment, that is, a view of the side of the antenna away from the metal housing 10. In Figure 6 In the shown embodiment, the partition groove 50 includes a first groove body 51 and a second groove body 52. The first groove body 51 extends from one edge of the conductive box body 30 corresponding to the opening 40 along the first direction (Y direction) into the interior of the conductive box body 30, and the length of the first groove body 51 extending along the first direction is less than the length of the conductive box body 30 in the first direction. It can be understood that one end of the first groove body 51 penetrates the edge of the conductive box body 30 on the side of the opening 40, and the other end does not penetrate the edge of the conductive box body 30 and has a certain distance from the edge of the conductive box body 30. Such a setting can make the end of the first groove body 51 far from the opening 40 located inside the conductive box body 30.

[0071] The second groove body 52 communicates with the first groove body 51 and extends along a second direction intersecting the first direction. The distance between the second groove body 52 and any side edge of the conductive box body 30 is greater than 0. It can be understood that neither end of the second groove body 52 penetrates the edge of the conductive box body 30, and there is a certain distance between both ends of the second groove body 52 and the edge of the conductive box body 30. With such a setting, the second groove body 52 can be located within the conductive box body 30. By making both the first groove body 51 and the second groove body 52 located within the conductive box body 30, it is possible to prevent the end of the first groove body 51 far from the opening 40 and the second groove body 52 from penetrating the conductive box body 30, resulting in discontinuity at the edges of the first groove body 51 and the second groove body 52, making the current unable to move from the feeding point 35 to the grounding point 36, and thus unable to generate electromagnetic waves.

[0072] The partition groove 50 includes a first groove body 51 and a second groove body 52, and the second groove body 52 extends along a second direction intersecting the first direction. With such a setting, compared with the rectangular partition groove 50, when the widths of the groove bodies are the same and the extending distances along the Y direction are the same, the partition groove 50 including the first groove body 51 and the second groove body 52 can further increase the edge length of the partition groove 50, and further increase the conductive path of the antenna.

[0073] In this embodiment, the first direction (Y direction) is parallel to the width direction of the conductive box body 30. In other alternative embodiments, the first direction (Y direction) can also be inclined with respect to the width direction of the conductive box body 30. It can be set according to actual needs, and the present disclosure does not limit this. In this embodiment, the extending direction of the second groove body 52 is the X direction, perpendicular to the extending direction of the first groove body 51. In some other alternative embodiments, the extending direction of the second groove body 52 may also not be perpendicular to the extending direction of the first groove body 51, and the present disclosure does not limit this.

[0074] In this embodiment, the extending direction of the second groove body 52 is perpendicular to the extending direction of the first groove body 51, and the first groove body 51 and the second groove body 52 form a T-shaped groove with internal connection. In some other alternative embodiments, the first groove body 51 and the second groove body 52 may also form an L-shaped groove with internal connection, and the present disclosure does not limit this.

[0075] Please refer to Figure 7 , Figure 7 which is the frequency diagram obtained by simulation of the antenna shown in an exemplary embodiment. As Figure 7 shown, the abscissa of this frequency diagram represents frequency, with the unit of MHz, and the ordinate represents gain, with the unit of dB. This frequency diagram includes two frequency curves. The dashed line is the frequency curve of the antenna with the partition groove 50 opened, and the solid line is the frequency curve of the antenna without the partition groove 50 opened. From Figure 7It can be seen that, compared with the frequency curve of the antenna without the partition groove 50, the center frequency of the frequency curve of the antenna with the partition groove 50 is shifted toward the low frequency, and the low frequency efficiency is improved.

[0076] The disclosed embodiment also provides an electronic device, which may be, for example, a mobile phone, a tablet computer, a laptop computer, a wearable device, a smart bracelet, a smart watch, smart glasses, or other electronic products. The electronic device includes a display screen and an antenna. It should be noted that the antenna described in the above embodiments and implementation methods is also applicable to the electronic device of this embodiment. The display screen is disposed in a metal housing 10 and is connected to a conductive box body 30 of the antenna.

[0077] It can be seen from the above embodiments that the antenna of the present invention is formed by enclosing a cavity 41 with an opening 40 by a conductive box body 30 and a metal shell 10, thereby constituting a cavity 41 antenna with an opening 40. By opening a partition groove 50 in the conductive box body 30, the partition groove 50 extends from a side edge of the conductive box body 30 corresponding to the opening 40 to the inside of the conductive box body 30, thereby increasing the outer edge length of the conductive box body 30, thereby increasing the conductive path of the antenna, increasing the electrical length of the antenna, and shifting the center frequency of the electromagnetic wave generated by the antenna to a low frequency, thereby improving the low-frequency performance of the antenna.

[0078] The antenna disclosed in the present invention can also adjust the frequency reduction intensity by adjusting the position of the partition groove 50 from the feeding point 35 and the edge length of the partition groove 50. Compared with the related art, by increasing the area of ​​the cavity 41, it can save more space inside the electronic device, so that the electronic device can be miniaturized or can integrate more other hardware, and the area of ​​the cavity 41 will not be changed, and the layout of the electronic device will not be changed, and the conventional electronic device hardware solution can be used. And the grooves are made in the conductive box body 30, and the process is mature and easy to mass produce.

[0079] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0080] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna, characterized in that: include: A metal shell and a conductive box body, wherein the conductive box body is connected to the metal shell, and the conductive box body and the metal shell enclose a cavity with an opening, and the conductive box body is provided with a partition groove, and the partition groove extends from a side edge of the conductive box body corresponding to the opening to the inside of the conductive box body.

2. The antenna according to claim 1, characterized in that The antenna further comprises a feeding point and a grounding point, and the partition groove is located between the feeding point and the grounding point.

3. The antenna according to claim 2, characterized in that: The partition groove is arranged closer to the feeding point than the grounding point.

4. The antenna according to claim 3, characterized in that: The distance between the opening position of the partition groove and the feeding point is 1-3 mm.

5. The antenna according to claim 1, characterized in that The partition groove is a rectangular groove, which extends from a side edge of the opening corresponding to the conductive box body along a first direction toward the inside of the conductive box body, and the length of the rectangular groove extending along the first direction is less than the length of the conductive box body in the first direction.

6. The antenna according to claim 1, characterized in that The partition groove comprises a first groove body and a second groove body, the first groove body extends from a side edge of the conductive box body corresponding to the opening along a first direction toward the inside of the conductive box body, and the length of the first groove body extending along the first direction is less than the length of the conductive box body in the first direction; The second slot body is connected to the first slot body, and the second slot body extends along a second direction intersecting the first direction, and a distance between the second slot body and any side edge of the conductive box body is greater than 0.

7. The antenna according to claim 1, characterized in that: The conductive box body includes a bracket and a conductive layer, the conductive layer is wrapped around the bracket and connected to the metal shell, and the bracket, the conductive layer and the metal shell are enclosed to form a cavity with an opening; The conductive layer is provided with a partition groove, and the partition groove extends from a side edge of the conductive layer corresponding to the opening toward the inside of the conductive layer.

8. The antenna according to claim 1, characterized in that: The conductive box body comprises a circuit board and a shielding cover, wherein the circuit board is connected to the metal shell, and the shielding cover is connected to a side of the circuit board away from the metal shell; the shielding cover and the metal shell are enclosed to form a cavity with an opening; The shielding cover is provided with a partition groove, and the partition groove extends from a side edge of the shielding cover corresponding to the opening toward the inside of the shielding cover.

9. The antenna according to claim 1, characterized in that: The conductive box body includes a main body and a bent portion, wherein the bent portion is formed at least partially at an edge of the main body and is bent toward the metal shell, and the bent portion is connected to the metal shell; The main body, the bent portion and the metal shell together form the cavity, and the opening is formed between the edge of the main body that does not form the bent portion and the metal shell; The partition groove is located in the main body, and extends from a side edge of the main body corresponding to the opening toward the inside of the main body.

10. The antenna according to claim 2, characterized in that: The cavity includes an opening, and the feeding point and the grounding point are both arranged on a side edge of the conductive box body corresponding to the opening.

11. The antenna according to claim 2, characterized in that: The cavity includes two adjacent openings; The feeding point and the grounding point are both arranged on the same side edge of the conductive box body corresponding to any one of the openings; or The feeding point is arranged at a side edge of the conductive box body corresponding to one of the openings, and the grounding point is arranged at a side edge of the conductive box body corresponding to another opening; or One of the feeding point and the grounding point is arranged at the intersection of the two openings corresponding to the conductive box body, and the other of the feeding point and the grounding point is arranged at a side edge of the conductive box body corresponding to any one of the openings.

12. An electronic device, characterized in that: It comprises a display screen and the antenna according to any one of claims 1 to 11, wherein the display screen is arranged on the metal shell and connected to the conductive box body.

Images