CN108023182B - Electronic device capable of improving antenna performance - Google Patents
Electronic device capable of improving antenna performance Download PDFInfo
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- CN108023182B CN108023182B CN201711499644.XA CN201711499644A CN108023182B CN 108023182 B CN108023182 B CN 108023182B CN 201711499644 A CN201711499644 A CN 201711499644A CN 108023182 B CN108023182 B CN 108023182B
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- circuit board
- electronic device
- elastic sheet
- contact portion
- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention provides an electronic device which comprises a metal frame, a circuit board, a first connecting structure and an antenna module arranged on the circuit board, wherein a first contact part is formed on the inner surface of the metal frame in an extending mode, the first connecting structure comprises a first elastic sheet, the first elastic sheet comprises a first end and a second end which are opposite, the first end of the first elastic sheet abuts against the first contact part and is electrically connected with the first contact part, the first elastic sheet penetrates through the circuit board and is then electrically connected with the antenna module arranged on the circuit board through the second end, and the metal frame is electrically connected with the antenna module arranged on the circuit board through the first elastic sheet and serves as an antenna radiator of the antenna module. According to the invention, the first elastic sheet is connected to the antenna module on the circuit board in a mode of penetrating through the circuit board, so that the assembly difficulty can be reduced, and the radiation performance of the antenna module can be effectively improved under the condition of a smaller clearance area.
Description
Technical Field
The present invention relates to electronic devices, and particularly to an electronic device capable of improving antenna performance.
Background
With the development of intelligent mobile terminals, users use mobile networks more and more frequently, which requires that the mobile terminals have stable and reliable signals. The antenna performance is the guarantee of signal stability, and the reliability of antenna feed mode is the guarantee of antenna performance stability again. With the increasing screen occupation ratio, especially the recently developed full-face screen, the clearance area of the antenna is reduced very little, the performance of the antenna is sensitive to the environment of the clearance area, such as the feeding position, and how to feed the antenna to ensure good antenna performance or improve the antenna performance becomes a problem to be solved.
Disclosure of Invention
The present invention is directed to an electronic device capable of improving antenna performance, which can improve antenna performance by a specific antenna feeding manner.
In order to solve the above technical problem, in one aspect, an electronic device is provided, where the electronic device includes a metal frame, a circuit board, a first connection structure, and an antenna module disposed on the circuit board, a first contact portion is formed on an inner surface of the metal frame in an extending manner, the first connection structure includes a first elastic sheet, the first elastic sheet includes two opposite first ends and a second end, the first end of the first elastic sheet abuts against the first contact portion and is electrically connected with the first contact portion, the first elastic sheet penetrates through the circuit board and is electrically connected with the antenna module disposed on the circuit board through the second end, and the metal frame is electrically connected with the antenna module disposed on the circuit board through the first elastic sheet and serves as an antenna radiator of the antenna module.
According to the electronic device capable of improving the antenna performance, the first connecting structure comprising the first elastic sheet is arranged to electrically connect the metal frame and the antenna module arranged on the circuit board, so that the metal frame can be used as an antenna radiator of the antenna module, and meanwhile, the first elastic sheet is connected to the antenna module on the circuit board in a mode of penetrating through the circuit board, so that the assembly difficulty can be reduced, and the radiation performance of the antenna module can be effectively improved under the condition that a clearance area is small.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a top view of an electronic device illustrating an internal structure according to an embodiment of the invention.
Fig. 2 is a side view of an electronic device illustrating an antenna module according to an embodiment of the invention.
Fig. 3 is a top view of an electronic device illustrating a partial area including an antenna module in an embodiment of the invention.
Fig. 4 is a schematic view of a spring piece according to an embodiment of the invention.
Fig. 5 is a side view of an electronic device illustrating an earthing switch according to an embodiment of the present invention.
Fig. 6 is a top view of an electronic device illustrating a partial area including a ground switch in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, and do not imply or indicate that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention, and that the first and second are merely for distinguishing one specific object from another and are not specific to a particular object.
Referring to fig. 1 and fig. 2, fig. 1 is a top view of an electronic device 100, illustrating a partial structure inside the electronic device 100. Fig. 2 is a side schematic view of a portion of the electronic device 100 that includes the antenna module 4. The electronic device 100 includes a metal frame 1, a circuit board 2, a connecting structure 3, and an antenna module 4 disposed on the circuit board 2. The connection structure 3 is used to electrically connect the metal frame 1 to the antenna module 4, and the metal frame 1 is used as an antenna radiator.
Wherein, a contact part B1 is formed on the inner surface S1 of the metal frame 1 in an extending manner. Connection structure 3 includes shell fragment T1, shell fragment T1 includes two relative first end P1 and second end P2, first end P1 contradict in contact site B1 and with contact site B1 electricity is connected, shell fragment T1 passes behind the circuit board 2 through second end P2 with set up in antenna module 4 electricity on circuit board 2 is connected, thereby metal frame 1 passes through shell fragment T1 with set up antenna module 4 electricity on circuit board 2 and be connected, and regard as antenna module 4's antenna radiator.
Therefore, in the present application, the elastic sheet T1 directly penetrates through the board breaking mode of the circuit board 2, and for the case that the feeding assembly difficulty is very high in the mode of side ejection of the elastic sheet, and for the case that the antenna performance becomes very poor when the clearance area of the antenna is small due to the feeding in the mode of directly attaching the antenna elastic sheet to the circuit board 2, the assembly difficulty can be greatly reduced, and the radiation performance of the antenna module 4 can be effectively improved to be small in the clearance area, for example, under the conditions of a full-face screen and the like.
As shown in fig. 2, the circuit board 2 is disposed near the contact portion B1 of the metal frame 1, and a height difference exists between the circuit board 2 and the contact portion B1. The antenna module 4 is disposed on a first face F1 of the circuit board 2 away from the contact portion B1. The elastic piece T1 further includes a body T11 connected between a first end P1 and a second end P2, the first end P1 of the elastic piece T1 abuts against the contact portion B1, the second end P2 is fixed on the first face F1 of the circuit board 2 and electrically connected to the antenna module 4 disposed on the first face F1 of the circuit board 2, and the body T11 of the elastic piece T1 extends from the first end P1, extends from the second face F2 of the circuit board 2 opposite to the first face F1, and then extends from the first face F1 of the circuit board 2 to the second end P2.
Fig. 3 is a schematic top view of the electronic device 100 illustrating a partial area including the antenna module. In some embodiments, a notch 21 is formed in an edge L1 of the circuit board 2 close to the contact portion B1 of the metal frame 1, the position of the notch 21 corresponds to the contact portion B1, the elastic piece T1 passes through the circuit board 2 through the notch 21, the first end P1 abuts against the contact portion B1, and the second end P2 is fixed on the first surface F1 of the circuit board 2 and is electrically connected to the antenna module 4 disposed on the first surface F1 of the circuit board 2.
Please refer to fig. 1, 3 and 4, wherein fig. 4 is a schematic diagram of the elastic sheet T1. In some embodiments, the second end P2 of the elastic piece T1 is a flat plate-shaped structure, the body T11 of the elastic piece T1 is connected to the side S2 of the second end P2 close to the metal bezel 1, two opposite sides S3 of the second end P2 adjacent to the side S2 close to the metal bezel 1 extend outward in a direction parallel to the side S2 close to the metal bezel 1 to form a protruding portion R1, and the two protruding portions R1 respectively span the gap 21 and extend to be fixed to the first surface F1 of the circuit board 2.
As shown in fig. 1 and 3, the two protrusions R1 extend from the middle of the two opposite sides S3 in a direction away from the two opposite sides S3, and the width of the two protrusions R1 is smaller than the length of the two opposite sides S3. As shown in fig. 1 and 3, a body T11 of the elastic piece T1 is connected to a middle position of a side S2 of the second end P2 close to the metal frame 1, and a width of the body T11 is also smaller than a length of a side S2 of the second end P2 close to the metal frame 1.
The antenna module 4 is electrically connected to one of the bosses R1 fixed to the first surface F1 of the circuit board 2.
The second end P2 is parallel to the plane of the circuit board 2, and the body T11 of the spring piece T1 forms a certain included angle with the second end P2, so that the spring piece T1 has a certain elastic force when being fixed between the circuit board 2 and the interference part B1, and the close contact and the electrical connection between the two parts are maintained.
Wherein, the two protrusions R1 of the second end P2 can be fixed on the circuit board 2 by soldering.
As shown in fig. 2 and 4, in some embodiments, the first end P1 of the elastic piece T1 is a bent end extending a certain distance in the opposite direction of the contact part B1 to form a hook-shaped structure, and the contact position of the first end P1 and the contact part B1 is located at the top of the bend. Thus, the first end P1, which is a bent end, allows a certain displacement between the spring T1 and the contact portion B1, and maintains the tight interference and electrical connection between the spring T1 and the contact portion B1 when the electronic device 100 is dropped or other shock occurs.
In some embodiments, the curved top end of the first end P1 abutting the contact portion B1 is further surface roughened to increase the interference tightness of the first end P1 and the contact portion B1.
The body T11 of the elastic piece T1 may be a straight strip.
As shown in fig. 2, the electronic device 100 further includes a front case 5 and a display screen 6, wherein the front case 5 is used for carrying the display screen 6. The circuit board 2 is disposed on a side of the front case 5 not carrying the display screen 6. The front housing 5 is a metal housing and is used as a whole reference ground of the electronic device 100. The area of the circuit board 2 is smaller than that of the front shell 5, and the area of the display screen 6 is approximately equal to that of the front shell 5. The side view of fig. 2 is a schematic view of the electronic device 100 with the display screen 6 facing downward. The top views of fig. 1 and 3 are also schematic top views of the electronic device 100 when the display screen 6 is placed downward.
The front case 5 extends to a position close to the metal frame 1 and is spaced from the metal frame, and has a certain distance from the contact portion B1 in a direction perpendicular to the display screen 6. As shown in fig. 2, the front housing 5 also extends at least partially below the contact portion B1 and the resilient tab T1 from the orientation shown in fig. 2 and is spaced apart from each other, so that at least a partial region a1 of the front housing 5 corresponds to the position of the resilient tab T1.
As shown in fig. 2, the thickness of the region a1 of the front case 5 corresponding to the dome T1 is significantly smaller than the entire thickness of the front case 5 (the thickness of most regions of the front case 5 not corresponding to the dome T1), for example, the thickness of the region a1 of the front case 5 corresponding to the dome T1 is 1/3, 1/4 of the entire thickness of the front case 5. Therefore, the distance between the elastic sheet T1 and the front shell 5 is increased, the energy consumption of the antenna caused by the coupling between the elastic sheet T1 and the front shell 5 serving as the reference ground of the whole machine is avoided, and the radiation performance of the antenna is prevented from being reduced.
The area a1 of the front case 5 corresponding to the dome T1 refers to an area including a projection of dome T1 on the front case 5, and the shape of the area of the front case 5 corresponding to the dome T1 may be similar to the projection of the dome T1 on the front case 5, or may be a rectangular area including the projection of the dome T1 on the front case 5, or the like.
As shown in fig. 2, the contact portion B1 is a step-shaped structure extending from the inner surface of the metal bezel 1, the contact portion B1 includes a first step surface M1 and a second step surface M2 sequentially extending from the inner surface of the metal bezel 1, the second step surface M2 is farther away from the circuit board 2 relative to the first step surface M1, the second end P2 of the elastic piece T1 abuts against the second step surface M2, so that the inclination angle of the elastic piece T1 is larger, the size of the projection of the elastic piece T1 on the front housing 5 is smaller, and therefore, the relative area between the elastic piece T1 and the front housing 5 is reduced, that is, the coupling area is reduced, and the coupling between the elastic piece T1 and the front housing 5 serving as the reference ground of the whole machine is further avoided and reduced.
As shown in fig. 1, the electronic device 100 further includes a connecting structure 31 and a connecting structure 32, the connecting structure 31 includes a spring T2, the connecting structure 32 includes a spring T3, and the structures of the spring T2 and the spring T3 are the same as those of the spring T1.
The inner surface S1 of the metal bezel 1 of the electronic device 100 further extends to form a contact portion B2 and a contact portion B3.
The contact portion B2 and the contact portion B3 are located on both sides of the contact portion B1, and the structures of the contact portions B2 and B3 are also the same as those of the contact portion B1.
As shown in fig. 1, the electronic device 100 further includes a ground switch K1 disposed on the circuit board 2 and a ground switch K2 disposed on the circuit board 2.
The elastic sheet T2 penetrates through the circuit board 2, and one end of the elastic sheet T2 abuts against the contact part B2, and the other end of the elastic sheet T2 is electrically connected with the grounding switch K1 on the circuit board 2. The elastic sheet T3 penetrates through the circuit board 2, and one end of the elastic sheet T3 abuts against the contact part B2, and the other end of the elastic sheet T3 is electrically connected with the grounding switch K2 on the circuit board 2.
Accordingly, by the on or off state of the ground switch K1 and/or the ground switch K2, the feed length of the metal bezel 1 as the antenna radiator of the antenna module 4 can be changed and further matching adjustment can be performed, thereby further improving the performance of the antenna.
The grounding switches K1 and K2 are electrically connected to the grounding point on the circuit board 2, and the grounding point on the circuit board 2 can also be electrically connected to the front casing 5 as the reference ground of the whole machine.
As shown in fig. 1, the electronic device 100 is further provided with a notch 22 and a notch 23, the elastic sheet T2 passes through the circuit board 2 through the notch 22, and the elastic sheet T3 passes through the circuit board 2 through the notch 23.
Fig. 5 is a side view of the electronic device 100 including a grounding switch. Since the structures and connection relationships of the connection structure 32 and the ground switch K2 are the same as those of the connection structure 31 and the ground switch K1, the connection between the connection structure 31 and the ground switch K1 on the circuit board 2 will be described as an example.
As shown in fig. 5, the elastic piece T2 includes a body T21, a first end P3 and a second end P4, the first end P3 of the elastic piece T2 abuts against the contact portion B2, and the second end P4 is fixed on the first face F1 of the circuit board 2 and electrically connected to the ground switch K1 disposed on the first face F1 of the circuit board 2. Wherein, the grounding switch K1 is also connected with the second end P4 through a lead C2.
The body T21 of the elastic piece T2 passes through the circuit board 2 through the corresponding notch 22.
As shown in fig. 5, the contact portion B2 is also a step-shaped structure extending from the inner surface of the metal bezel 1, the contact portion B2 includes a first step surface M3 and a second step surface M4 sequentially extending from the inner surface of the metal bezel 1, the second step surface M4 is farther away from the circuit board 2 relative to the first step surface M3, and the first end P3 of the elastic piece T2 abuts against the second step surface M4.
The areas of the second step surface M2 of the contact part B1 and the second step surface M4 of the contact part B2 are larger than the areas of the first ends of the elastic pieces T1 and T2, so that the first ends of the elastic pieces T1 and T2 can move within a certain range and still tightly abut against the contact parts B1 and B2.
Referring to fig. 6, a top view of the electronic device 100 including the grounding switch K1 is shown. As shown in fig. 6, the second end P4 of the elastic piece T2 is a flat plate-shaped structure, the body T21 of the elastic piece T2 is connected to one side S4 of the second end P4, two opposite sides S5 of the second end P4 adjacent to the side S4 extend outward in a direction parallel to the side S4 to form a protruding portion R2, and the two protruding portions R2 respectively span the gap 22 and extend to be fixed on the first surface F1 of the circuit board 2.
The grounding switch K1 is electrically connected to one of the protrusions R2 fixed to the first face F1 of the circuit board 2 at the second end P4 of the spring piece T2.
The second end P4 of the elastic sheet T2 is also parallel to the plane of the circuit board 2, and the body T21 of the elastic sheet T2 forms a certain included angle with the second end P4.
The two protrusions R2 at the second end P4 of the elastic piece T2 can also be fixed on the circuit board 2 by soldering.
As shown in fig. 5, the front case 5 is also thinned in the region a2 corresponding to the elastic piece T2, and correspondingly, the front case 5 is also thinned in the region a2 corresponding to the elastic piece T3, so that the thickness of the front case 5 in the region a2 corresponding to the elastic pieces T2 and T3 is also smaller than the entire thickness of the front case 5. Therefore, the front shell 5 is thinned in the regions corresponding to the elastic sheets T1, T2 and T3, so that the distance between the front shell 5 and the corresponding elastic sheets T1, T2 and T3 is increased, the phenomenon that the energy of the antenna is consumed due to the coupling between the elastic sheet T1 and the front shell 5 serving as the reference ground of the whole machine is avoided, and the radiation performance of the antenna is prevented from being reduced.
Similarly, the first end P3 of the elastic piece T2 is also a bent end extending for a certain distance in the opposite direction of the contact part B2, and forms a hook-shaped structure, and the contact position of the first end P3 and the contact part B2 is located at the top of the bend. Similarly, in some embodiments, the curved top end of the first end P3 abutting the contact portion B2 is also surface roughened to increase the interference tightness between the first end P3 and the contact portion B2.
Referring back to fig. 1, the electronic device 100 further includes at least one electrical connection J1 for electrically connecting the front case 5 and the metal bezel 1, wherein the at least one electrical connection J1 substantially divides the metal bezel 1 into at least two antenna radiators.
In some embodiments, the electrical connector J1 is fixed to the metal frame 1 and the front shell 5 by welding, screwing or snapping, and is electrically connected to the metal frame 1 and the front shell 5. The electrical connection J1 may be a sheet metal.
The antenna module 4 is connected with one of the antenna radiators on the metal frame 1 through the corresponding connecting structure 3. When the antenna module 4 performs feed excitation, the at least two antenna radiators resonate in different antenna modes, so that the at least two antenna radiators are excited to resonate, and the bandwidth of a specific frequency band is increased.
As shown in fig. 1, the number of the electrical connectors J1 is two, and the connection positions of the two electrical connectors J1 are located on the same side of the contacts B1, B2, B3 on the metal bezel 1.
The two electrical connectors J1 divide the metal bezel 1 into at least a first antenna radiator 11, a second antenna radiator 12, and a third antenna radiator 13. The contacts B1, B2, B3 are all located on the first antenna radiator 11, and the antenna module 4, the ground switch K1, and the ground switch K2 are all connected to the first antenna radiator 11 through corresponding connecting structures.
The antenna module 4 is connected with one of the antenna radiators on the metal frame 1 through the corresponding connecting structure 3. When the antenna module 4 performs feed excitation, the three antenna radiators resonate in different antenna modes, so that the three antenna radiators are excited to generate multi-resonance, and the bandwidth of a specific frequency band is increased.
Thus, by electrically connecting the at least one electrical connection J1 between the metal rim 1 and the front case 5, the antenna performance can be further improved.
As shown in fig. 1 and 2, the antenna module 4 includes a radio frequency source 401 and a matching circuit 402, and the matching circuit 402 is electrically connected between the second end P2 of the elastic piece T1 and the radio frequency source 401. The radio frequency source is configured to generate a feed excitation signal, the matching circuit 402 performs matching adjustment on the feed excitation signal, and then performs feed excitation on the metal frame 1 serving as an antenna radiator through the corresponding elastic sheet T1, so as to generate an antenna radiation signal. As shown in fig. 2, the rf source 401 and the matching circuit 402, and the matching circuit 402 and the second end P2 of the shrapnel T1 are connected through a wire C1.
The grounding switches K1 and K2 may be digitally controlled switches, or may be MOS transistors, BJT transistors, or other switches.
As shown in fig. 2, the electronic device 100 further includes a rear case 7, the rear case 7 is located on the other side of the circuit board 2 opposite to the front case 5, and the rear case 7 serves as a battery rear cover for covering the back of the electronic device 100.
As shown in fig. 1, a camera hole X1 is formed in the rear housing 7, wherein the camera hole X1 is a dual-camera hole for accommodating a dual-camera structure formed by two cameras, or the camera hole X1 is an artificial dual-camera hole for accommodating an artificial dual-camera structure formed by one camera and one flash lamp.
The camera hole X1 is located at a corner position of the rear case 7, for example, as shown in fig. 1, a projection of the rear case 7 on the front case 5 is also located at a corner position of the front case 5.
The contact portions B1, B2, and B3 may be formed integrally with the metal bezel 1, or may be formed by welding metal pieces to the inner surface S1 of the metal bezel 1.
The first end, the second end and the body of the elastic sheet T1-T3 are of an integrally formed structure.
In some embodiments, the first end of the elastic sheet T1-T3 is integrally formed with the body, and the second end and the body can be connected by welding. The notches 21, 22 and 23 formed in the circuit board 2 may also be through holes, and the bodies of the elastic pieces T1, T2 and T3 are welded to the corresponding second ends after passing through the corresponding through holes, so that the structure of the circuit board 2 does not need to be damaged too much, and the usable area of the circuit board 2 is increased.
In some embodiments, the aforementioned contact portions B1, B2, B3 may also be a metal plate perpendicular to the inner surface S1 of the metal bezel 1, and the contact portions B1, B2, B3 extend from the inner surface S1 of the metal bezel 1 farther from the circuit board 2, so that the height difference between the contact portion B1 and the circuit board 2 is large, and the projection of the elastic pieces T1-T3 on the front housing 5 is small.
The first end and the second end of the elastic sheet T1-T3 may be in other shapes and structures as long as the elastic sheet can tightly abut against the corresponding contact portion and can be electrically connected with a component on the circuit board.
The electronic device 100 may be a mobile phone or a tablet computer. The display screen 6 may be a touch display screen.
According to the electronic device 100 capable of improving antenna performance provided by the invention, the metal frame 1 and the antenna module 4 arranged on the circuit board 2 are electrically connected through the connecting structure 3 comprising the elastic sheet T1, so that the metal frame 1 can be used as an antenna radiator of the antenna module 13, and meanwhile, the elastic sheet T1 is connected to the antenna module 4 on the circuit board 2 in a mode of penetrating through the circuit board 2, so that the assembly difficulty can be reduced, and the radiation performance of the antenna module 4 can be effectively improved under the condition that a clearance area is smaller.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.
Claims (15)
1. An electronic device capable of improving antenna performance is characterized in that the electronic device comprises a metal frame, a circuit board, a first connecting structure and an antenna module arranged on the circuit board, a first contact part is formed on the inner surface of the metal frame in an extending manner, the first connecting structure comprises a first elastic sheet, the first elastic sheet comprises two opposite first ends and second ends and a body connected between the first ends and the second ends, the body of the first elastic sheet is in a straight strip shape, the first end of the first elastic sheet is abutted against the first contact part and is electrically connected with the first contact part, the body of the first elastic sheet in the straight strip shape directly penetrates through the circuit board in a breaking manner and is electrically connected with the antenna module arranged on the circuit board through the second end, and the metal frame is electrically connected with the antenna module arranged on the circuit board through the first elastic sheet, and as an antenna radiator of the antenna module;
the circuit board is arranged close to a first contact part formed on the inner surface of the metal frame in an extending mode, and a certain height difference is formed between the circuit board and the first contact part;
the first contact part is of a step-shaped structure extending out of the inner surface of the metal frame, the first contact part comprises a first step surface and a second step surface, the first step surface and the second step surface sequentially extend out of the inner surface of the metal frame, the second step surface is far away from the circuit board relative to the first step surface, and the first end of the first elastic sheet is abutted to the second step surface.
2. The electronic device of claim 1, wherein the antenna module is disposed on a first surface of the circuit board away from the first contact portion, the body of the first resilient tab extends from the first end and extends from the first surface of the circuit board to the second end after extending into a second surface of the circuit board opposite to the first surface, the first end of the first resilient tab abuts against the first contact portion, and the second end of the first resilient tab is fixed on the first surface of the circuit board and electrically connected to the antenna module disposed on the first surface of the circuit board.
3. The electronic device of claim 2, wherein a first notch is formed in an edge of the circuit board close to the first contact portion of the metal frame, the first notch corresponds to the first contact portion, and the first elastic piece penetrates through the circuit board through the notch.
4. The electronic device according to claim 3, wherein the second end of the first resilient plate is a flat structure, the body of the first resilient plate is connected to a side of the second end close to the metal bezel, two opposite sides of the second end adjacent to the side close to the metal bezel respectively extend outward in a direction parallel to the side close to the metal bezel, and the two protrusions respectively span the gap and extend and are fixed to the first surface of the circuit board.
5. The electronic device according to claim 3, wherein the first end of the first resilient tab is a bent end extending a distance in a direction opposite to the first contact portion, and a contact position of the first end with the first contact portion is located at the top of the bend.
6. The electronic device as claimed in claim 5, wherein the curved top end of the first end abutting the first contact portion is surface-roughened to increase the abutting tightness between the first end and the first contact portion.
7. The electronic device according to any one of claims 1-6, further comprising a front housing for carrying the display screen, and a display screen, wherein the circuit board is disposed on a side of the front housing not carrying the display screen, wherein the front housing is configured to serve as a global reference ground for the electronic device.
8. The electronic device according to claim 7, wherein a thickness of a region of the front housing corresponding to the first resilient piece is smaller than an overall thickness of the front housing.
9. The electronic device of claim 7, further comprising a second connecting structure, wherein the second connecting structure comprises a second elastic sheet, the second elastic sheet has a same structure as the first elastic sheet, a second contact portion is further formed on the inner surface of the metal frame of the electronic device in an extending manner, the electronic device further comprises a first grounding switch disposed on the circuit board, the second elastic sheet penetrates through the circuit board, one end of the second elastic sheet abuts against the second contact portion, and the other end of the second elastic sheet is electrically connected with the first grounding switch on the circuit board.
10. The electronic device of claim 9, further comprising a third connecting structure, wherein the third connecting structure comprises a third elastic sheet, the third elastic sheet has a same structure as the first elastic sheet, a third contact portion is further formed on an inner surface of the metal frame of the electronic device in an extending manner, the third contact portion and the second contact portion are respectively located on two sides of the first contact portion, the electronic device further comprises a second grounding switch disposed on the circuit board, the third elastic sheet penetrates through the circuit board, one end of the third elastic sheet abuts against the third contact portion, and the other end of the third elastic sheet is electrically connected to the second grounding switch on the circuit board.
11. The electronic device of claim 10, wherein the electronic device further comprises a second notch and a third notch, the second elastic piece passes through the circuit board through the second notch, and the third elastic piece passes through the circuit board through the third notch.
12. The electronic device according to claim 10, wherein a thickness of a region of the front housing corresponding to the second resilient piece and the third resilient piece is smaller than an overall thickness of the front housing.
13. The electronic device of claim 7, further comprising at least one electrical connector for electrically connecting the front housing and the metal bezel, the at least one electrical connector for dividing the metal bezel into at least two antenna radiators.
14. The electronic device according to claim 13, wherein the antenna module is connected to one of the antenna radiators on the metal bezel through the first connection structure, and when the antenna module is subjected to feed excitation, the at least two antenna radiators are made to resonate in different antenna modes, so that the at least two antenna radiators are excited to resonate to increase a bandwidth of a specific frequency band.
15. The electronic device of claim 14, wherein the electrical connectors are fixed to and electrically connected with the metal bezel and the front housing by welding, screwing or snapping.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499644.XA CN108023182B (en) | 2017-12-29 | 2017-12-29 | Electronic device capable of improving antenna performance |
| PCT/CN2018/115220 WO2019128502A1 (en) | 2017-12-29 | 2018-11-13 | Electronic device with enhanced antenna performance |
| EP18206457.6A EP3506423B1 (en) | 2017-12-29 | 2018-11-15 | Electronic device |
| US16/196,843 US10720696B2 (en) | 2017-12-29 | 2018-11-20 | Electronic devices with enhanced antenna performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499644.XA CN108023182B (en) | 2017-12-29 | 2017-12-29 | Electronic device capable of improving antenna performance |
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| Publication Number | Publication Date |
|---|---|
| CN108023182A CN108023182A (en) | 2018-05-11 |
| CN108023182B true CN108023182B (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711499644.XA Active CN108023182B (en) | 2017-12-29 | 2017-12-29 | Electronic device capable of improving antenna performance |
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| Country | Link |
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| CN (1) | CN108023182B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128502A1 (en) * | 2017-12-29 | 2019-07-04 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device with enhanced antenna performance |
| CN108882579B (en) * | 2018-06-29 | 2020-09-04 | Oppo广东移动通信有限公司 | Middle frame assembly and electronic device |
| CN109449617B (en) * | 2018-11-20 | 2023-10-20 | 惠州硕贝德无线科技股份有限公司 | Radio frequency connection structure |
| CN111370847B (en) * | 2020-03-23 | 2021-07-20 | 维沃移动通信有限公司 | Electronic equipment |
| CN111541007B (en) * | 2020-04-30 | 2021-10-29 | 维沃移动通信有限公司 | Electronic equipment |
| CN115225745B (en) * | 2022-09-20 | 2023-03-24 | 荣耀终端有限公司 | Electronic device |
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| CN2809942Y (en) * | 2005-04-01 | 2006-08-23 | 长谷川精密科技股份有限公司 | Spring fixing structure for electric apparatus |
| CN104471789A (en) * | 2012-12-21 | 2015-03-25 | 株式会社村田制作所 | Antenna device and electronic equipment |
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| CN206401517U (en) * | 2016-12-30 | 2017-08-11 | 深圳市海能达通信有限公司 | Mobile terminal antenna device and mobile terminal |
| CN206639952U (en) * | 2016-12-27 | 2017-11-14 | 上海与德信息技术有限公司 | Antenna shrapnel and mobile terminal |
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| CN2809942Y (en) * | 2005-04-01 | 2006-08-23 | 长谷川精密科技股份有限公司 | Spring fixing structure for electric apparatus |
| CN104471789A (en) * | 2012-12-21 | 2015-03-25 | 株式会社村田制作所 | Antenna device and electronic equipment |
| CN206639952U (en) * | 2016-12-27 | 2017-11-14 | 上海与德信息技术有限公司 | Antenna shrapnel and mobile terminal |
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| CN108023182A (en) | 2018-05-11 |
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