Antenna assembly and electronic equipment

Abstract

The utility model relates to an antenna assembly and electronic equipment, and belongs to the technical field of antenna design. The antenna assembly comprises a first antenna and a second antenna; the first antenna comprises a ferrite plate and a coil, the ferrite plate is provided with a first wall surface, a second wall surface and an avoiding part, the first wall surface and the second wall surface are oppositely arranged, the avoiding part penetrates through the first wall surface and the second wall surface, the coil comprises a first wire, the first wire is connected with the first wall surface, and the first wire is connected with the second wall surface. The winding part is wound around the avoiding part in a spiral manner; and the second antenna is positioned in the avoiding part. By adopting the electronic equipment, the second antenna can be arranged in the first antenna, so that the problem that the antenna arrangement space in the electronic equipment is limited is solved.

Description

Technical Field

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

[0002] With the rapid development of 5G technology, the frequency bands available for communication are gradually increasing. Consequently, the number of antennas in electronic devices (such as mobile phones) is also increasing. Given that the number of antennas in electronic devices is gradually increasing, while the overall size of the electronic devices remains basically unchanged, the space reserved for antennas in electronic devices is becoming increasingly limited, making the space for antenna layout in electronic devices increasingly tight.

[0003] Therefore, there is an urgent need to expand the space available for arranging antennas in electronic devices without increasing the size of the electronic devices, so as to alleviate the problem of tight space for arranging antennas in electronic devices. Utility Model Content

[0004] The embodiments of the present disclosure provide an antenna assembly and an electronic device that can solve the technical problems existing in the related art. The technical solutions are as follows:

[0005] In a first aspect, an embodiment of the present disclosure provides an antenna assembly, the antenna assembly comprising a first antenna and a second antenna;

[0006] The first antenna includes a ferrite plate and a coil, the ferrite plate having a first wall surface, a second wall surface, and a relief portion, the first wall surface and the second wall surface being arranged opposite to each other, the relief portion penetrating the first wall surface and the second wall surface, the coil including a first conductive wire connected to the first wall surface and spirally wound around the relief portion;

[0007] The second antenna is located in the avoiding portion.

[0008] In a possible implementation manner, there is a gap between the second antenna and the ferrite plate.

[0009] In a possible implementation, a minimum distance L1 between the second antenna and the ferrite plate is greater than or equal to 2 mm.

[0010] In a possible implementation, a minimum distance L2 from the first conductive line to the avoiding portion is greater than or equal to 3 mm.

[0011] In a possible implementation, the coil further includes a first feeding pin and a first grounding pin;

[0012] The first feeding pin is located outside the accommodation space formed by the winding of the first wire and is connected to the first end of the first wire;

[0013] The first grounding pin is located outside the accommodating space and is connected to the second end of the first wire.

[0014] In a possible implementation, an edge of the avoidance portion matches an edge of an accommodating space formed by winding the first conductive wire.

[0015] In a possible implementation, the first antenna further includes an insulating member, and the insulating member is wrapped around the coil.

[0016] In a possible implementation, the first antenna is an NFC antenna, and the second antenna is a cellular antenna or a Wi-Fi antenna.

[0017] In a possible implementation, the antenna assembly further includes a lining plate, which is located on a side of the ferrite plate away from the coil and is respectively connected to the ferrite plate and the second antenna.

[0018] In a second aspect, the present disclosure provides an electronic device, comprising the antenna assembly in the first aspect and possible implementations thereof.

[0019] The technical solutions provided by the embodiments of the present disclosure include at least the following beneficial effects:

[0020] An embodiment of the present disclosure provides an antenna assembly, in which the ferrite plate of the first antenna has an avoidance portion, which provides space for the arrangement of the second antenna, thereby expanding the space for arranging the antenna without increasing the size of the electronic device, thereby alleviating the problem of tight antenna arrangement space in the electronic device.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 is a structural schematic diagram of an antenna assembly shown in an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of an antenna assembly shown in an embodiment of the present disclosure;

[0025] Figure 3is a structural schematic diagram of an antenna assembly shown in an embodiment of the present disclosure;

[0026] Figure 4 is a schematic structural diagram of a coil shown in an embodiment of the present disclosure;

[0027] Figure 5 is a structural schematic diagram of an antenna assembly shown in an embodiment of the present disclosure;

[0028] Figure 6 It is a structural schematic diagram of an antenna assembly shown in an embodiment of the present disclosure.

[0029] Legend

[0030] 1. First antenna;

[0031] 11. Ferrite plate; 12. Coil;

[0032] 111. First wall surface; 112. Second wall surface; 113. Avoidance portion;

[0033] 121, first wire; 122, first feeding pin; 123, first ground pin; 124, connecting wire; 1210, accommodation space;

[0034] 13. Insulation parts;

[0035] 100, gap;

[0036] 2. Second antenna;

[0037] 21. Second feeding pin; 22. Second ground pin;

[0038] 3. Lining board;

[0039] 31. Part 1; 32. Part 2. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0041] An embodiment of the present disclosure provides an antenna assembly, which includes a first antenna 1 and a second antenna 2 .

[0042] The first antenna 1 includes a ferrite plate 11 and a coil 12. The ferrite plate 11 has a first wall 111, a second wall 112, and a relief portion 113. The first wall 111 and the second wall 112 are arranged opposite each other, and the relief portion 113 extends through the first and second walls 111 and 112. The coil 12 includes a first conductor 121, which is connected to the first wall 111 and spirally wound around the relief portion 113. The second antenna 2 is located within the relief portion 113.

[0043] In this way, the avoidance portion 113 of the ferrite plate 11 can provide space for the arrangement of the second antenna 2, thereby expanding the space available for arranging the antenna by about 300 square millimeters without increasing the size of the electronic device, thereby alleviating the problem of tight antenna arrangement space in the electronic device.

[0044] In some possible embodiments, the first antenna 1 is an NFC (Near Field Communication) antenna, and the coil 12 of the first antenna 1 is electrically connected to the inverter in the electronic device. During implementation, alternating current flows through the coil 12, and due to the circulation of alternating current, magnetic flux is generated inside the coil 12. In the first antenna 1, the ferrite plate 11 plays a role in anti-interference and enhancing signal stability. The ferrite plate 11 is set to be connected to the coil 12, and the ferrite plate 11 can reduce or eliminate the interference of the external magnetic field on the coil 12. This ensures that the signal is kept pure and stable during the communication process of the first antenna 1.

[0045] In one example, the minimum distance L2 from the first conductive wire 121 to the avoiding portion 113 is greater than or equal to 3 mm.

[0046] like Figure 2 and Figure 3 As shown, the first wire 121 is located on the first wall 111 of the ferrite plate 11 and is connected to the first wall 111. The first wire 121 is spirally wound on the first wall 111. The portion of the first wire 121 located in the inner circle is surrounded to form a receiving space 1210. The distance from the portion of the first wire 121 located in the inner circle to the edge of the avoidance portion 113 may be equal or may not be equal. The minimum distance L2 from the portion of the first wire 121 located in the inner circle to the edge of the avoidance portion 113 is greater than or equal to 3 mm.

[0047] In this way, it can be ensured that the ferrite plate 11 extends a sufficient distance relative to the coil 12 , thereby maintaining the purity and stability of the signal during the communication process of the first antenna 1 .

[0048] In some possible embodiments, the shape of the avoidance portion 113 is adapted to the shape of the coil 12 .

[0049] See also Figure 1 and Figure 2 The coil 12 is located on the first wall 111 of the ferrite plate 11 and is connected to the first wall 111. The coil 12 includes a first wire 121. The first wire 121 is spirally wound around the avoidance portion 113 of the ferrite plate 11. The part of the first wire 121 close to the avoidance portion 113 is enclosed to form an accommodating space 1210, and the edge of the accommodating space 1210 is adapted to the edge of the avoidance portion 113.

[0050] In implementation, the avoidance portion 113 can be processed after the coil 12 is connected to the ferrite plate 11. Specifically, the first wire 121 of the coil 12 is spirally wound on the first wall 111, and the inner circle of the first wire 121 is arranged to form an accommodating space 1210. Subsequently, the avoidance portion 113 can be processed and formed according to the shape of the accommodating space 1210, so that the edge of the avoidance portion 113 is adapted to the edge of the accommodating space 1210.

[0051] The connection method between the coil 12 and the ferrite plate 11 can be bonding, and the processing method of the avoidance portion 113 can be CNC (Computer Numerical Control) cutting. The embodiment of the present disclosure does not limit the connection method between the coil 12 and the ferrite plate 11 and the processing method of the avoidance portion 113.

[0052] In this way, because the edge of the avoidance portion 113 is adapted to the edge of the accommodating space 1210, on the one hand, it can ensure that the ferrite plate 11 can completely cover the coil 12, thereby improving the signal stability of the first antenna 1. On the other hand, the space size of the avoidance portion 113 can be increased, increasing the space for arranging the second antenna 2.

[0053] In this example, the distances from the inner portion of the first wire 121 to the edge of the escape portion 113 are equal, and the distances from the inner portion of the first wire 121 to the edge of the escape portion 113 are both greater than or equal to 3 mm.

[0054] In some possible embodiments, the shape of the accommodating space 1210 is not compatible with the shape of the avoiding portion 113 .

[0055] See also Figure 3 The coil 12 is located on the first wall 111 of the ferrite plate 11 and is connected to the first wall 111. The coil 12 includes a first wire 121. The first wire 121 is spirally wound around the avoidance portion 113 of the ferrite plate 11. The portion of the first wire 121 close to the avoidance portion 113 is enclosed to form an accommodating space 1210. The avoidance portion 113 is rectangular in shape.

[0056] In this way, the difficulty of processing the avoidance portion 113 can be reduced.

[0057] For example, the avoidance portion 113 may be a rectangle with a length of about 30 mm and a width of about 10 mm. Thus, the avoidance portion 113 may provide about 300 mm of arrangement space for the second antenna 2, thereby alleviating the problem of limited antenna arrangement space in electronic devices.

[0058] In this example, the distances between the inner portion of the first conductive wire 121 and the edge of the escape portion 113 are not equal, and the minimum distance L2 between the inner portion of the first conductive wire 121 and the edge of the escape portion 113 is greater than or equal to 3 mm.

[0059] In some possible embodiments, see Figure 4 The first antenna 1 further includes an insulating member 13 , which is wrapped around the coil 12 .

[0060] The insulating member 13 may be a film made of polyimide, which is coated on the outside of the coil 12 to isolate the coil 12 and the ferrite plate 11 to prevent the first antenna 1 from leaking electricity.

[0061] In some possible embodiments, a gap 100 is provided between the second antenna 2 and the ferrite plate 11 .

[0062] See also Figure 1 The ferrite plate 11 has a relief portion 113 , the second antenna 2 is disposed in the relief portion 113 , and a gap is defined between the second antenna 2 and an inner wall of the relief portion 113 .

[0063] In practice, the ferrite plate 11 is conductive, and the second antenna 2 is spaced from the inner wall of the avoidance portion 113 to avoid contact between the second antenna 2 and the ferrite plate 11 and thus avoid leakage.

[0064] In an example, the minimum distance L1 between the second antenna 2 and the ferrite plate 11 is greater than or equal to 2 mm.

[0065] Specifically, such as Figure 2 As shown, the second antenna 2 has a rectangular plate structure. The second antenna 2 is located in the avoidance portion 113 of the ferrite plate 11 , and the minimum distance L1 from the side wall of the second antenna 2 to the inner wall of the avoidance portion 113 is greater than or equal to 2 mm.

[0066] In this way, there can be sufficient clearance between the second antenna 2 and the ferrite plate 11 , thereby avoiding mutual influence between the first antenna 1 and the second antenna 2 .

[0067] In some possible embodiments, the coil 12 further includes a first feeding pin 122 and a first grounding pin 123 .

[0068] See also Figure 3 The first feeding pin 122 is located outside the accommodating space 1210 formed by the winding of the first wire 121 and is connected to the first end of the first wire 121. The first grounding pin 123 is located outside the accommodating space 1210 and is connected to the second end of the first wire 121.

[0069] In this way, by arranging both the first feeding pin 122 and the first grounding pin 123 outside the accommodation space 1210 , the size of the avoidance portion 113 can be increased, thereby increasing the space provided for the arrangement of the second antenna 2 .

[0070] In implementation, the first feeding pin 122 is electrically connected to the NFC chip of the electronic device, and the first grounding pin 123 is grounded.

[0071] In one example, the coil 12 further includes a connecting wire 124 .

[0072] like Figure 3 As shown, the first feeding pin 122 and the first grounding pin 123 are both arranged outside the accommodating space 1210 and parallel to the first wall 111. The first feeding pin 122 and the first grounding pin 123 are arranged. The first feeding pin 122 is connected to the first end of the first wire 121, the first grounding pin 123 is connected to one end of the connecting wire 124, and the other end of the connecting wire 124 is connected to the second end of the first wire 121.

[0073] For details, see Figure 1 The connecting wire 124 includes a first connecting part, a second connecting part and a third connecting part that are connected to each other. The first connecting part and the third connecting part are bent toward the first wall 111. There is a gap between the second connecting part and the first wall 111. The first connecting part is connected to the first ground pin 123, and the third connecting part is connected to the second end of the first wire 121.

[0074] In this way, by providing the connecting wire 124 , the first ground pin 123 and the second end of the first wire 121 can be connected.

[0075] In some possible embodiments, the second antenna 2 is a cellular (cellular data) antenna or a Wi-Fi (mobile hotspot) antenna.

[0076] Regarding the frequency band of the second antenna 2 , technicians can set it according to actual needs, and the embodiments of the present disclosure do not limit this.

[0077] For example, when the second antenna 2 is a cellular antenna, its frequency band may be 850 MHz, 900 MHz, 1800 MHz, 1900 MHz, 2100 MHz, 2600 MHz, 3500 MHz, etc. When the second antenna is a Wi-Fi antenna, its frequency band may be 2.4 GHz or 5 GHz.

[0078] It can be understood that, in the case that the first antenna 1 is an NFC antenna and the second antenna is a cellular antenna or a Wi-Fi antenna, since the frequency band of the NFC antenna is located near 13.56 MHz and the second antenna 2 is located in the frequency band above 850 MHz, the frequency band of the first antenna 1 and the frequency band of the second antenna 2 have a difference of at least one order of magnitude, and thus the first antenna 1 and the second antenna 2 hardly affect each other in use.

[0079] In some possible embodiments, the antenna assembly further comprises a backing plate 3.

[0080] As shown in Figure 5 , the backing plate 3 is located on the side of the ferrite plate 11 away from the coil 12 and is connected with the ferrite plate 11 and the second antenna 2 respectively.

[0081] In this way, by arranging the backing plate 3 and connecting the first antenna 1 and the second antenna 2 with the backing plate 3 respectively, the relative positions of the first antenna 1 and the second antenna 2 can be maintained, thereby improving the connection stability of the antenna assembly.

[0082] Specifically, referring to Figure 5 , the backing plate 3 can be a rectangular plate structure, which is located on the side of the ferrite plate 11 away from the coil 12 and is connected with the ferrite plate 11 and the second antenna 2 respectively.

[0083] Exemplarily, the connection modes between the backing plate 3 and the second antenna 2 and the first antenna 1 can both be adhesion.

[0084] The backing plate 3 can be made of a conductive material, such as metal or graphite, or a non-conductive material, or part of the conductive material and the remaining part of the non-conductive material.

[0085] In an example, referring to Figure 6 , the backing plate 3 comprises a first part 31 and a second part 32, the second part 32 is made of a non-conductive material, the first part 31 is made of a conductive material, the first part 31 has a mounting through hole, the mounting through hole is arranged opposite to the second antenna 2, the second part 32 is arranged in the mounting through hole and connected with the second part 32.

[0086] The first part 31 is used to be connected with the ferrite plate 11 in the first antenna 1, and the second part 32 is connected with the second antenna 2.

[0087] Exemplarily, the second part 32 and the first part 31 can be adhesion. The first part 31 and the first antenna 1 can be adhesion, and the second part 32 and the second antenna 2 can be adhesion.

[0088] In this way, the second antenna 2 can be prevented from directly contacting the metal component in the electronic device, thereby avoiding the second antenna 2 from being electrified.

[0089] In an example, referring to Figure 3 , the second antenna 2 has a second feeding pin 21 and a second grounding pin 22, the second feeding pin 21 is used to be electrically connected with the radio frequency element in the electronic device, and the second grounding pin 22 is grounded.

[0090] Specifically, referring to Figure 3 , the second feeding pin 21 and the second grounding pin 22 are arranged in parallel, and the second feeding pin 21 can be oriented differently from the first feeding pin 122, so as to Figure 3 for example, the second feeding pin 21 is oriented downward, and the first feeding pin 122 is oriented leftward. Figure 3 Figure 3

[0091] Further, the minimum distance L3 between the second feeding pin 21 and the first feeding pin 122 can be greater than or equal to 20 mm.

[0092] In this way, the wiring difficulty of electrically connecting the first feeding pin 122 with the NFC chip in the electronic device can be reduced, and the wiring difficulty of electrically connecting the second feeding pin 21 with the radio frequency element in the electronic device can be reduced.

[0093] The technical scheme provided by the embodiments of the present disclosure at least has the following beneficial effects:

[0094] The embodiments of the present disclosure provide an antenna assembly, in which the ferrite plate 11 of the first antenna 1 has an avoiding portion 113, which can provide space for the arrangement of the second antenna 2, so as to expand the space for arranging the antenna without increasing the size of the electronic device, thereby relieving the problem of the tight space for arranging the antenna in the electronic device.

[0095] The embodiments of the present disclosure provide an electronic device, which includes the above-mentioned antenna assembly.

[0096] In the embodiments of the present disclosure, the electronic device can be a smart phone, a tablet computer, a notebook computer, a wearable device (for example, a smart watch, a smart bracelet), or an electronic device with a communication function, and the specific technology and specific device form of the electronic device are not limited in the present disclosure.

[0097] ​​In the description of this specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure.

[0098] It is understood that in this disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0099] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0100] It can be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

[0101] It is further understood that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral molding; they may refer to mechanical connections, electrical connections, or communication between them; they may refer to direct connections without any other components between them, or indirect connections through an intermediary; they may refer to internal communication between two elements, or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0102] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0103] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the solutions disclosed herein. This 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 not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0104] It should be understood that the present disclosure is not limited to the exact structures 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 scope of the appended claims.

Claims

1. An antenna assembly, characterized in that: The antenna assembly comprises a first antenna (1) and a second antenna (2); The first antenna (1) comprises a ferrite plate (11) and a coil (12); the ferrite plate (11) has a first wall surface (111), a second wall surface (112) and a relief portion (113); the first wall surface (111) and the second wall surface (112) are arranged opposite to each other; the relief portion (113) passes through the first wall surface (111) and the second wall surface (112); the coil (12) comprises a first conductive wire (121); the first conductive wire (121) is connected to the first wall surface (111) and is spirally wound around the relief portion (113); The second antenna (2) is located in the avoidance portion (113).

2. The antenna assembly according to claim 1, wherein: There is a gap (100) between the second antenna (2) and the ferrite plate (11).

3. The antenna assembly according to claim 2, wherein: The minimum distance L1 between the second antenna (2) and the ferrite plate (11) is greater than or equal to 2 mm.

4. The antenna assembly according to claim 1, wherein: The minimum distance L2 from the first conductive wire (121) to the avoidance portion (113) is greater than or equal to 3 mm.

5. The antenna assembly according to claim 1, wherein: The coil (12) further includes a first feeding pin (122) and a first grounding pin (123); The first feeding pin (122) is located outside the accommodation space (1210) formed by the winding of the first wire (121), and is connected to the first end of the first wire (121); The first grounding pin (123) is located outside the accommodating space (1210) and is connected to the second end of the first wire (121).

6. The antenna assembly according to claim 1, wherein: The edge of the avoidance portion (113) is adapted to the edge of the accommodation space (1210) formed by the winding of the first conductive wire (121).

7. The antenna assembly according to claim 1, wherein: The first antenna (1) further includes an insulating member (13), wherein the insulating member (13) is wrapped around the outside of the coil (12).

8. The antenna assembly according to claim 1, wherein: The first antenna (1) is an NFC antenna, and the second antenna (2) is a cellular antenna or a Wi-Fi antenna.

9. The antenna assembly according to any one of claims 1 to 8, characterized in that: The antenna assembly further comprises a lining plate (3), which is located on a side of the ferrite plate (11) away from the coil (12) and is respectively connected to the ferrite plate (11) and the second antenna (2).

10. An electronic device, characterized in that: The electronic device comprises the antenna assembly according to any one of claims 1 to 9.

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