Electronic equipment

Abstract

The utility model discloses electronic equipment, and belongs to the technical field of communication. The electronic equipment comprises a first antenna and a second antenna, the first antenna and the second antenna are located on the same side of a main body of the electronic equipment, and an interval is formed between the first end of the first antenna and the first end of the second antenna; the third antenna is respectively coupled with the first antenna and the second antenna, and in the thickness direction of the electronic equipment, the projection of the third antenna covers the first end of the first antenna, the interval and the first end of the second antenna; and the third antenna is positioned in the insulating part of the main body.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to an electronic device. Background Art

[0002] Currently, as the usage time of electronic devices by users continues to increase, the demand for battery capacity is also constantly rising. However, large-capacity batteries often have a relatively large volume. As a result, the space left for the antenna structure inside the electronic device is severely restricted. Thus, how to improve the antenna performance within a limited space has become an urgent problem for manufacturers to solve. Summary of the Utility Model

[0003] The objective of the embodiments of this application is to provide an electronic device that can achieve the purpose of improving the antenna performance within a limited space.

[0004] To achieve the above objective, the embodiments of this application provide an electronic device, including:

[0005] A first antenna and a second antenna; the first antenna and the second antenna are located on the same side of the main body of the electronic device, and there is a gap between the first ends of the first antenna and the second antenna;

[0006] A third antenna that is coupled to the first antenna and the second antenna respectively. Among them, along the thickness direction of the electronic device, the projection of the third antenna covers the first end of the first antenna, the gap, and the first end of the second antenna; the third antenna is located within the insulating member of the main body.

[0007] Optionally, along the thickness direction of the electronic device, the overlapping area between the projection of the third antenna and the first antenna is equal to the overlapping area between the projection of the third antenna and the second antenna.

[0008] Optionally, the third antenna is a flexible circuit board antenna.

[0009] Optionally, a feeding tongue is provided at the second end of the first antenna, and the feeding tongue is electrically connected to the elastic piece of the circuit board of the electronic device.

[0010] Optionally, a connecting material return position is provided at the second end of the second antenna, and the connecting material return position is connected to the floor of the main body.

[0011] Optionally, the end face of the first end of the first antenna is parallel to the end face of the first end of the second antenna.

[0012] Optionally, a first clearance area is provided between the first antenna and the floor of the main body, and a second clearance area is provided between the first antenna and the floor.

[0013] Optionally, an insulating adhesive is provided on a side of the third antenna close to the first antenna and the second antenna.

[0014] Optionally, the third antenna further includes, on the insulating adhesive, a cover film, a cover film thermosetting adhesive, a reinforcing substrate, a substrate adhesive, a copper layer, a cover film thermosetting adhesive, and a cover film, which are sequentially provided.

[0015] Optionally, the second antenna is a parasitic antenna of the first antenna.

[0016] Optionally, the third antenna forms a first induced current by coupling with the first antenna and the second antenna, the first antenna forms a second induced current by coupling with the second antenna, and the directions of the first induced current and the second induced current are the same.

[0017] In an embodiment of the present application, an electronic device includes a first antenna and a second antenna located on the same side of a main body, and there is a gap between a first end of the first antenna and a first end of the second antenna; the electronic device further includes a third antenna coupled to the first antenna and the second antenna respectively. Wherein, in the thickness direction of the electronic device, the projection of the third antenna covers the first end of the first antenna, the gap, and the first end of the second antenna, and the third antenna is located in an insulating member of the main body. Therefore, in addition to the coupling between the first antenna and the second antenna, the third antenna provided at the gap, while occupying less space, is also coupled to the first antenna and the second antenna respectively, and three inductive capacitances will be formed at the gap, forming two paths of induced currents, enhancing the current intensity and radiation intensity, thereby improving the antenna radiation efficiency. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the working principle of a monopole antenna;

[0019] Figure 2 is one of the schematic structural diagrams of the electronic device according to the embodiment of the present application;

[0020] Figure 3 is a schematic structural diagram of the FPC antenna in the embodiment of the present application;

[0021] Figure 4 is another schematic structural diagram of the electronic device according to the embodiment of the present application;

[0022] Figure 5 is yet another schematic structural diagram of the electronic device according to the embodiment of the present application;

[0023] Figure 6 is one of the schematic diagrams of the antenna working current of the electronic device according to the embodiment of the present application;

[0024] Figure 7It is the fourth schematic diagram of the structure of the electronic device according to the embodiment of the present application;

[0025] Figure 8 It is the second schematic diagram of the antenna operating current of the electronic device according to the embodiment of the present application;

[0026] Figure 9 It is the fifth schematic diagram of the structure of the electronic device according to the embodiment of the present application. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0028] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0029] For the convenience of understanding, some content related to the embodiments of the present application will be described as follows:

[0030] Currently, most electronic devices use a metal middle frame antenna as the antenna, and one of the antenna solutions is the monopole + parasitic antenna mode. As Figure 1 shown, a monopole antenna (Monople) has only one feeding pin, and a radiator extends from the feed source. Parasitic antenna: When the monopole antenna works, the electric field generated can couple energy to the parasitic antenna metal arm through radiation, causing the metal arm to resonate and generate an induced current, and then generating an electric field to radiate outward. Since the direction of the electric field generated by the parasitic antenna metal arm is the same as that of the monopole antenna, the radiation ability of the loop antenna can be enhanced.

[0031] Next, the electronic device provided by the embodiments of the present application will be described in detail in conjunction with the accompanying drawings, through specific embodiments and their application scenarios.

[0032] As Figure 2 , Figure 4 shown, an electronic device according to an embodiment of the present application includes:

[0033] The first antenna 1 and the second antenna 2; the first antenna 1 and the second antenna 2 are located on the same side of the main body 10 of the electronic device, and there is a gap 4 between the first end of the first antenna 1 and the first end of the second antenna 2;

[0034] The third antenna 3 is coupled to the first antenna 1 and the second antenna 2 respectively. Wherein, along the thickness direction of the electronic device, the projection of the third antenna 3 covers the first end of the first antenna 1, the gap 4 and the first end of the second antenna 2; the third antenna 3 is located in the insulating member 5 of the main body 10.

[0035] In this way, for the electronic device of the present application, in addition to the coupling between the first antenna and the second antenna, the third antenna arranged at the gap, while occupying less space, is also coupled to the first antenna and the second antenna respectively, enhancing the current intensity and radiation intensity, thereby improving the antenna radiation efficiency.

[0036] Optionally, the third antenna 3 forms a first induced current by coupling with the first antenna 1 and the second antenna 2, the first antenna 1 forms a second induced current by coupling with the second antenna 2, and the directions of the first induced current and the second induced current are the same.

[0037] As Figure 8 shown, three inductive capacitances (C1, C2, C3) are formed between the first antenna 1 and the second antenna 2, between the third antenna 3 and the first antenna 1, and between the third antenna 3 and the first antenna 1, and two paths of induced currents (the first induced current I1, the second induced current I2) converge, enhancing the current intensity and radiation intensity, thereby improving the antenna radiation efficiency.

[0038] Optionally, the second antenna 2 is a parasitic antenna of the first antenna 1.

[0039] Optionally, along the thickness direction of the electronic device, the area of the overlap between the projection of the third antenna 3 and the first antenna 1 is equal to the area of the overlap between the projection of the third antenna 3 and the second antenna 2.

[0040] It can also be understood that: the area of the third antenna 3 covering the first antenna 1 is the same as the area of the third antenna 3 covering the second antenna 2.

[0041] Specifically, the third antenna can be symmetrically arranged with respect to the midline of the gap between the first antenna and the second antenna, symmetrically covering the first antenna and the second antenna. As Figure 7 shown, along the thickness direction of the electronic device, the area of the overlap between the projection of the third antenna 3 and the first antenna is D, and the area of the overlap between the projection of the third antenna and the second antenna is also D.

[0042] Optionally, the third antenna 3 is a flexible printed circuit board antenna.

[0043] In this way, a flexible printed circuit (FPC) antenna can achieve the purpose of improving the radiation efficiency of the antenna of an electronic device by only occupying a smaller device space.

[0044] Of course, the third antenna includes but is not limited to an FPC antenna, and can also be an antenna such as copper foil, aluminum foil, printing direct structure (PDS) conductive silver paste, and laser direct structure (LDS) conductive silver paste.

[0045] Optionally, an insulating adhesive 31 is provided on one side of the third antenna 3 close to the first antenna 1 and the second antenna 2.

[0046] In this way, the third antenna 3 can be arranged on the first antenna 1 and the second antenna 2 through the insulating adhesive 31.

[0047] Optionally, as Figure 3 shown, the third antenna 3 further includes, on top of the insulating adhesive 31, a cover film 32, a cover film thermosetting adhesive 33, a reinforcing substrate 34, a substrate adhesive 35, a copper layer 36, a cover film thermosetting adhesive 37, and a cover film 38 arranged in sequence.

[0048] Among them, the cover film can be a black cover film, and the reinforcing substrate can be made of polyethylene terephthalate (PET).

[0049] Specifically, the thickness of the insulating adhesive 31 is 50 μm, the thickness of the cover film 32 is 25 μm, the thickness of the cover film thermosetting adhesive 33 is 25 μm, the thickness of the reinforcing substrate 34 is 12.5 μm, the thickness of the substrate adhesive 35 is 13 μm, the thickness of the copper layer 36 is 18 μm, the thickness of the cover film thermosetting adhesive 37 is 15 μm, and the thickness of the cover film 38 is 12.5 μm.

[0050] In addition, in this embodiment, the insulating member 5 is deployed outside the first antenna 1 and the second antenna 2 by injection molding. Therefore, a sunken groove 6 can be designed to be reserved at the position corresponding to the third antenna 3 during the injection molding process, so as to install the third antenna 3 in the sunken groove 6. After the injection molding is completed, the third antenna 3 will be wrapped by a plastic frame.

[0051] Optionally, the sunken groove can be square or oval.

[0052] Of course, the shape of the sunken groove can also be set to others, which will not be listed one by one here.

[0053] Optionally, as shown in Figure 5 the second end of the first antenna 1 is provided with a feed tongue piece 7, and the feed tongue piece 7 is electrically connected to the elastic piece of the circuit board of the electronic device.

[0054] That is, as shown in Figure 5 and 6 the circuit board is electrically connected to the feed tongue piece 7 through an elastic piece (such as an SMT elastic piece), an alternating current electrical signal flows into the first antenna 1, the current travels along the metal arm to position 4 of the interval, and a capacitance is formed at the end face of the first end of the first antenna 1 and the end face of the first end of the second antenna 2 at position 4 of the interval, and a coupled resonance circuit is formed in the second antenna 2.

[0055] Optionally, as shown in Figure 5 the second end of the second antenna 2 is provided with a connecting material return ground position 8, and the connecting material return ground position 8 is connected to the ground plane 9 of the main body 10.

[0056] As shown in Figure 5 and 6 a coupled resonance circuit is formed in the second antenna 2 by the first antenna 1 through the interval 4, and the harmonic current flows to the ground plane 9 through the connecting material return ground position 8, thereby forming a parasitic antenna loop.

[0057] Optionally, the end face of the first end of the first antenna 1 is parallel to the end face of the first end of the second antenna 2.

[0058] Optionally, as shown in Figure 9 a first clearance area 11 is provided between the first antenna 1 and the ground plane 9 of the main body 10, and a second clearance area 12 is provided between the first antenna 1 and the ground plane 9.

[0059] In this way, when the break distance of the interval 4 remains unchanged and in the face of an increase in battery capacity (increase in the battery compartment), when using the antenna performance improved by the third antenna, the antenna clearance areas (the first clearance area 11 and the second clearance area 12) can be narrowed synchronously, the value of B (clearance area distance) is reduced, and the corresponding space is used for battery capacity expansion (that is, the value of A (the distance from the center line of the battery compartment to the outer edge of the battery compartment wall) is increased), the problem of battery capacity is optimized and solved to a certain extent, the antenna performance still has an advantage compared with the original scheme, and the battery capacity is increased, enhancing the competitiveness of the product.

[0060] In summary, during the injection molding process, a sink groove with a corresponding interval 4 reserved (for example, the fracture distance of the interval 4 is 0.8 mm), such as a sink groove with a length-width dimension of 9.5 * 1.4 mm and a depth of 0.20 - 0.25 mm. Then, a third antenna covering the first antenna and the second antenna can be installed in the sink groove, such as an FPC antenna with a size of 9 * 1.2 * 0.13 mm. The FPC antenna is assembled close to the outer side of the main body (there is plastic on the inner side of the sink groove. When assembled close to the outer side, the entire surface of the FPC antenna is on the metal, and the coupling area with the first antenna and the second antenna will be larger, and the coupling effect will be better). The remaining three sides are designed with gaps for assembly avoidance, such as an interval of 0.2 - 0.3 mm. The coverage area of the FPC antenna on both the first antenna 1 and the second antenna 2 is S. As Figure 7 and 8 shown, when an electrical signal is fed into the first antenna 1 through the feeding tongue piece, two coupling fields will be formed at the interval 4. One is the opposite end faces of the first antenna and the second antenna at the interval, and the other is the FPC antenna and the upper surface covering the first antenna correspondingly, with symmetric coverage. D is the covered area. The two form a second coupling circuit. When the induced current flows from the left side to the right side of the FPC antenna, a coupling electric field is synchronously formed on the upper surface of the second antenna and the right side of the FPC antenna, forming a coupling circuit. The current flows from the right side of the FPC antenna to the upper end face of the second antenna and returns to the ground through the second antenna. The increased coupling electric field can increase the coupling between the first antenna and the second antenna, enhance the current of the parasitic branch antenna, increase the radiation aperture, and improve the radiation efficiency.

[0061] In the embodiments of the present application, the electronic device can be a terminal or other devices other than terminals. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a vehicle-mounted electronic device, a Mobile Internet Device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. It can also be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc. The embodiments of the present application do not make specific limitations.

[0062] It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

[0063] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present application.

[0064] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", etc. 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, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0065] The above embodiments are described with reference to the drawings. Other different forms and embodiments are also feasible without departing from the principle of the present application. Therefore, the present application should not be construed as being limited to the embodiments presented herein. More precisely, these embodiments are provided so that the present application will be complete and perfect, and will convey the scope of the present application to those skilled in the art. In the drawings, the component sizes and relative sizes may be exaggerated for clarity. The terms used herein are only for the purpose of describing specific embodiments and are not intended to be limiting. The terms "comprising" and / or "including" when used in this specification indicate the presence of the described features, integers, components, and / or assemblies, but do not exclude the presence or addition of one or more other features, integers, components, assemblies, and / or their groups. Unless otherwise indicated, when stating, a value range includes the upper and lower limits of the range and any sub-ranges therebetween.

[0066] The embodiments of the present application have been described above with reference to the drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the purpose of the present application and the scope protected by the claims, can also make many forms, all of which fall within the protection scope of the present application.

Claims

1. An electronic device, characterized in that: include: A first antenna and a second antenna; the first antenna and the second antenna are located on the same side of the main body of the electronic device, and there is a gap between the first end of the first antenna and the first end of the second antenna; A third antenna coupled to the first antenna and the second antenna respectively, wherein along the thickness direction of the electronic device, the projection of the third antenna covers the first end of the first antenna, the gap and the first end of the second antenna; and the third antenna is located in the insulating part of the main body.

2. The electronic device according to claim 1, characterized in that: Along the thickness direction of the electronic device, an overlapping area of ​​the projection of the third antenna and the first antenna is equal to an overlapping area of ​​the projection of the third antenna and the second antenna.

3. The electronic device according to claim 1, characterized in that: The third antenna is a flexible circuit board antenna.

4. The electronic device according to claim 1, characterized in that: A feeding tongue is provided at the second end of the first antenna, and the feeding tongue is electrically connected to a spring of a circuit board of the electronic device.

5. The electronic device according to claim 1, characterized in that: A connecting return ground is provided at the second end of the second antenna, and the connecting return ground is connected to the floor of the main body.

6. The electronic device according to claim 1, characterized in that: A first clearance area is provided between the first antenna and the floor of the main body, and a second clearance area is provided between the first antenna and the floor.

7. The electronic device according to claim 1, characterized in that: Insulating glue is provided on one side of the third antenna close to the first antenna and the second antenna.

8. The electronic device according to claim 7, characterized in that: The third antenna also includes a covering film, a covering film thermosetting adhesive, a reinforcing substrate, a substrate adhesive, a copper layer, a covering film thermosetting adhesive, and a covering film, which are sequentially arranged on the insulating adhesive.

9. The electronic device according to claim 1, characterized in that: The second antenna is a parasitic antenna of the first antenna.

10. The electronic device according to claim 1, characterized in that: The third antenna forms a first induced current by coupling with the first antenna and the second antenna, and the first antenna forms a second induced current by coupling with the second antenna, and the first induced current and the second induced current have the same direction.

Images