CN108270071B

CN108270071B - Antenna module, middle frame module and electronic equipment

Info

Publication number: CN108270071B
Application number: CN201810055703.2A
Authority: CN
Inventors: 周林; 向元彬; 曾志敏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2020-09-22
Anticipated expiration: 2038-01-19
Also published as: CN108270071A

Abstract

The embodiment of the application provides an antenna assembly, a middle frame assembly and electronic equipment, wherein the antenna assembly comprises a substrate, a metal frame and a radiator, the metal frame is formed on the periphery of the substrate, the antenna assembly further comprises a gap, the gap is located between the metal frame and the substrate, the gap is provided with an opening penetrating through the metal frame from the substrate to the metal frame, and the radiator is formed on the metal frame and located at the position of the gap; the antenna assembly further comprises a first grounding point, a first feeding point and a second grounding point, the first radiating body is electrically connected with the first grounding point and the first feeding point, the second radiating body is electrically connected with the second grounding point, and the second radiating body is coupled with the first radiating body. According to the electronic device provided by the embodiment of the application, the first radiator is coupled and excited to excite the second radiator, so that the performance of the antenna is improved.

Description

Antenna module, middle frame module and electronic equipment

Technical Field

The present disclosure relates to electronic devices, and particularly to an antenna assembly, a middle frame assembly and an electronic device.

Background

With the development of network technology and the improvement of the intelligent degree of electronic equipment, users can realize more and more functions such as conversation, chatting, game playing and the like through the electronic equipment.

The user realizes signal transmission through the antenna of the electronic equipment in the conversation and chat processes of the electronic equipment.

Disclosure of Invention

The embodiment of the application provides an antenna module, a middle frame module and an electronic device, which can improve the antenna performance of the electronic device.

The embodiment of the application provides an antenna assembly, which comprises a substrate, a metal frame and a radiator, wherein the metal frame is formed on the periphery of the substrate, the antenna assembly further comprises a gap, the gap is located between the metal frame and the substrate, the gap is provided with an opening penetrating through the metal frame from the substrate to the metal frame in the direction, and the radiator is formed on the metal frame and located at the position of the gap; wherein the content of the first and second substances,

the antenna assembly further comprises a first grounding point, a first feeding point and a second grounding point, the first radiating body is electrically connected with the first grounding point and the first feeding point, the second radiating body is electrically connected with the second grounding point, and the second radiating body is coupled with the first radiating body.

The embodiment of the application further provides a middle frame assembly, which comprises a metal substrate, a non-metal substrate, a metal frame and a radiator, wherein the metal frame is formed on the periphery of the metal substrate; wherein the content of the first and second substances,

The embodiment of the application further provides an electronic device, which comprises a circuit board and a middle frame assembly, wherein the middle frame assembly is the middle frame assembly, and the circuit board is electrically connected with the radiating body.

According to the electronic device provided by the embodiment of the application, the first radiator and the second radiator are coupled, and the second radiator is excited through the coupling of the first radiator, so that the performance of the antenna is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 3 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 4 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 5 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a middle frame assembly according to an embodiment of the present application.

Fig. 7 is a partial structural schematic diagram of a middle frame assembly provided in an embodiment of the present application.

Fig. 8 is another partial structural schematic diagram of a middle frame assembly according to an embodiment of the present application.

Fig. 9 is another partial structural schematic diagram of a middle frame assembly according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of an antenna assembly provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides a display screen assembly and electronic equipment. The details will be described below separately. The display screen assembly can be arranged in the electronic device, and the electronic device can be a smart phone, a tablet computer and the like.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, and fig. 2 is another schematic structural diagram of the electronic device according to the embodiment of the present disclosure. The electronic device 10 may include a cover 11, a display 12, a circuit board 13, a battery 14, a housing 15, a camera 16, and a fingerprint unlock module 17. It should be noted that the electronic device 10 shown in fig. 1 and 2 is not limited to the above, and may include other devices, or does not include the camera 16, or does not include the fingerprint unlocking module 17.

Wherein the cover plate 11 is mounted to the display screen 12 to cover the display screen 12. The cover 1 may be a transparent glass cover so that the display screen transmits light through the cover 11 to display. In some embodiments, the cover plate 11 may be a glass cover plate made of a material such as sapphire.

The housing 15 may include a middle frame 151 and a rear cover 152, the middle frame 151 and the rear cover 152 may be combined with each other to form the housing 15, and the middle frame 151 and the rear cover 152 may form a receiving space to receive the printed circuit board 13, the display 12, the battery 14, and the like. Further, a cover plate 11 may be fixed to the housing 15, and the cover plate 11 and the housing 15 form a closed space to accommodate the printed circuit board 13, the display 12, the battery 14, and the like. In some embodiments, the cover plate 11 is disposed on the middle frame 151, the rear cover 152 is disposed on the middle frame 151, the cover plate 11 and the rear cover 152 are disposed on opposite sides of the middle frame 151, and the cover plate 11 and the rear cover 152 are disposed opposite to each other.

In some embodiments, the housing 15 may be a metal housing, such as a metal such as magnesium alloy, stainless steel, and the like. It should be noted that the material of the housing 15 in the embodiment of the present application is not limited to this, and other manners may also be adopted, such as: the housing 15 may be a plastic housing. Also for example: the housing 15 is a ceramic housing. For another example: the housing 15 may include a plastic part and a metal part, and the housing 15 may be a housing structure in which metal and plastic are matched with each other, specifically, the metal part may be formed first, for example, a magnesium alloy substrate is formed by injection molding, and then plastic is injected on the magnesium alloy substrate to form a plastic substrate, so as to form a complete housing structure.

It should be noted that, the structure of the housing in the embodiment of the present application is not limited to this, for example: the rear cover and the middle frame are integrally formed to form a completed housing 15 structure, which directly has a receiving space for receiving the printed circuit board 13, the display 12, the battery 14, and the like.

The printed circuit board 13 is mounted in the housing 15, the printed circuit board 13 may be a motherboard of the electronic device 10, and one, two or more of the functional components such as the motor, the microphone, the speaker, the earphone interface, the usb interface, the camera 16, the distance sensor, the ambient light sensor, the receiver, and the processor may be integrated on the printed circuit board 13.

In some embodiments, the printed circuit board 13 may be secured within the housing 15. Specifically, the printed circuit board 13 may be screwed to the middle frame 151 by screws, or may be snap-fitted to the middle frame 151. It should be noted that the way that the printed circuit board 13 is specifically fixed to the middle frame 151 in the embodiment of the present application is not limited to this, and other ways, such as a way of fixing by a snap and a screw together, may also be used.

Wherein the battery 14 is mounted in the housing 15, the battery 14 being electrically connected to the printed circuit board 13 for providing power to the electronic device 10. The housing 15 may serve as a battery cover for the battery 14. The case 15 covers the battery 14 to protect the battery 14, and particularly, the rear cover covers the battery 14 to protect the battery 14, reducing damage to the battery 14 due to collision, dropping, and the like of the electronic apparatus 10.

Wherein the display 12 is mounted in the housing 15, and the display 12 is electrically connected to the printed circuit board 13 to form a display surface of the electronic device 10. The display screen 12 may include a display area and a non-display area. The display area may be used to display a screen of the electronic device 10 or provide a user with touch control. The top area of the non-display area is provided with an opening for conducting sound and light, and the bottom of the non-display area can be provided with functional components such as a fingerprint module, a touch key and the like. The cover plate 11 is mounted on the display 12 to cover the display 12, and may form the same display area and non-display area as the display 12 or different display areas and non-display areas.

Note that the structure of the display screen 12 is not limited to this. For example, the display 12 may be a special-shaped display, specifically, please refer to fig. 3, and fig. 3 is another schematic structural diagram of the electronic device according to the embodiment of the present application. The electronic device in fig. 3 differs from the electronic device in fig. 1 in that: the electronic device 20 includes a display 22, a cover 21, a printed circuit board 23, a battery 24, and a housing 25. Wherein the display screen 22 has a light permeable area 28 formed directly thereon. Specifically, for example: the display screen 22 is provided with a through hole penetrating the display screen 22 in the thickness direction, and the light-permeable area 28 may include the through hole, and the through hole may be provided with functional components such as a front camera, an earphone, a sensor, and the like. For another example: the display screen 22 is provided with non-display areas, which the light permeable areas 28 may comprise. Wherein the cover plate 21 is adapted to the structural arrangement of the display screen 22. It should be noted that, the housing 25 may refer to the housing 15, the printed circuit board 23 may refer to the printed circuit board 13, and the battery 24 may refer to the battery 14, which are not described in detail herein.

Referring to fig. 4, fig. 4 is a schematic structural diagram of another electronic device according to an embodiment of the present disclosure, where the electronic device in fig. 4 is different from the electronic device in fig. 1 in that: the electronic device 30 in fig. 4 includes a display screen 32, a cover plate 31, a printed circuit board 33, a battery 34, and a housing 35. The display screen 32 is provided with a notch 121 at its periphery, and the notch 121 can be used for placing functional components such as a front camera, an earphone, a sensor, and the like. The cover plate 31 is suitable for the structure of the display screen 11, the cover plate 31 may be provided with a large notch such as the notch 121, and the cover plate 31 may cover the notch 121. It should be noted that, the housing 3 may refer to the housing 15, the printed circuit board 33 may refer to the printed circuit board 13, and the battery 34 may refer to the battery 14, which are not described in detail herein.

It should be noted that, in some embodiments, the display 12 may not include the non-display area, but may be configured as a full-screen structure, and the functional components such as the distance sensor and the ambient light sensor may be disposed below the display or at other positions. Specifically, please refer to fig. 5, and fig. 5 is another schematic structural diagram of the electronic device according to the embodiment of the present application. The electronic device 40 includes a display 42, a cover 41, a printed circuit board 43, a battery 44, and a housing 45. Wherein the display screen 42 is overlaid on the housing 45 without a non-display area. Wherein, the cover plate 41 is suitable for the size setting of the display screen 42. It should be noted that, the housing 45 may refer to the housing 15, the printed circuit board 43 may refer to the printed circuit board 13, and the battery 44 may refer to the battery 14, which are not described herein again.

In some embodiments, the Display 12 may be a Liquid Crystal Display (LCD) or Organic Light-Emitting Diode (OLED) type Display. In some embodiments, when the display 12 is a liquid crystal display, the electronic device 10 may further include a backlight module, not shown, which can be referred to as a backlight module in the prior art.

In some embodiments, the electronic device 10 may further include a radiator for transceiving signals. The radiator may be mounted to the housing 15, such as the bezel 151. The radiator may form an integrated structure with the middle frame 151, defined as a middle frame assembly. The following description will be made in detail by taking the middle frame component as an example.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a middle frame assembly according to an embodiment of the present disclosure. The middle frame assembly 100 may include a metal substrate 130, a non-metal substrate 140, a metal bezel 120, and a radiator 110.

The metal substrate 130 may be a magnesium alloy substrate, and specifically refer to the middle frame 151 above, which is not described herein again.

The metal frame 120 may be a magnesium alloy frame, and the metal frame 120 may be integrally formed with the metal substrate 130, for example, by injection molding in a mold by using a metal injection molding method, and then integrally formed by using a machining method, for example, and further fixedly connected by welding. In some embodiments, the metal bezel 120 is located at the periphery of the metal substrate 130.

In some embodiments, please refer to fig. 7, and fig. 7 is a schematic structural diagram illustrating a metal substrate and a metal frame provided in the present application. A plurality of gaps are formed between the metal substrate 130 and the metal frame 120, and each gap penetrates through the metal frame 120 in the thickness direction of the metal frame 120. Each slit includes at least one opening, and each opening penetrates through the metal frame 120 from the metal substrate 130 to the metal frame 120 to the outside.

In some embodiments, the slits include a first slit 131 and a second slit 132. The first slot 131 has a first opening 1311, the first slot 131 may be formed by extending from one side of the first opening 1311, and the first slot 131 includes a first gap 1312; the second slot 132 has a second opening 1321, the third slot 132 may be formed to extend from one side of the second opening 1321, and the second slot 132 includes a second notch 1322.

The non-metal substrate 140 is disposed in the gap, and the non-metal substrate 140 is fixedly connected to the metal substrate 130 and the radiator 110 in the gap, respectively. Specifically, the non-metal substrate 140 may include a first non-metal substrate 141 and a second non-metal substrate 142. The first non-metal substrate 141 may be disposed in the first gap 131, and the second non-metal substrate 142 may be disposed in the second gap 132. The non-metal substrate 140 may be formed in the gap by plastic injection molding.

The radiator 110 includes two radiators, and the two radiators are mutually matched through coupling, so that the antenna performance of the electronic device is improved. One of the radiators is electrically connected to the printed circuit board 13 through a feeding point 150 for signal transmission, the other radiator is coupled for signal transmission, and each radiator 110 is electrically connected to the metal substrate 130 through a grounding point 160 for grounding.

In some embodiments, the radiator 110 may include two radiators, including: a first radiator 111 and a second radiator 112.

The first radiator 111 is formed at the first slot 131, specifically, the first radiator 111 is formed at the first gap 1312, the first radiator 111 is adjacent to the first gap 1312, and the first radiator 111 is connected to the first ground point 161 and the first feeding point 150. The first radiator 111 can receive and transmit signals of a low frequency band (700 + 960MHz) and a high frequency band (2300 + 2690 MHz). It should be noted that the first radiator 111 is not limited to transceiving signals of the low frequency band and the high frequency band, and may also transceive other signals.

The second radiator 112 is formed at the second slot 132, specifically, the second radiator 112 is formed at the second gap 1322, the second radiator 112 is adjacent to the second gap 1322, and the second radiator 112 is connected to the second ground point 162. The second radiator 112 can receive and transmit signals of the middle frequency band (1710-2170MHz) under the coupled excitation of the first radiator 111. It should be noted that the second radiator 112 is not limited to transceiving signals of the low frequency band and the medium frequency band, and may also transceive other signals.

In some embodiments, the first radiator 111 and the second radiator 112 are located on the same side of the metal bezel 120, and a gap hole 113 is formed between the first radiator 111 and the second radiator 112, wherein the first radiator 111 and the second radiator 112 are insulated from each other by the gap hole 113. Further, the clearance hole 113 is located between the first opening 1311 and the second opening 1321.

It should be noted that the clearance hole 113 may be an earphone hole or a USB interface, where the earphone hole may be used for plugging an earphone, and the USB interface may be used for plugging a USB connector.

Therefore, the two radiators are arranged, and the mutual matching between the two radiators can increase the signal receiving and transmitting strength and the frequency band, so that the performance of the antenna of the electronic device is improved.

In the above description, the electronic device provided for the embodiment of the present application is exemplarily described by using two radiators as an example, it should be noted that in some other embodiments, the performance of the antenna may be further improved by adding some circuit devices for adjusting the frequency band to the radiators.

For example, please refer to fig. 8, and fig. 8 is a schematic structural diagram of another portion of the middle frame assembly according to an embodiment of the present disclosure. The middle frame assembly shown in fig. 8 may include a metal bezel 120, a metal substrate 130, and a radiator 110. The metal substrate 130 can refer to the above contents, and is not described herein again. The metal frame 120 can refer to the above contents, and is not described herein again. The radiator 110 can refer to the above contents, and is not described herein again.

It should be noted that an inductor 170 is disposed between the second radiator 112 and the second grounding point 162, that is, the second radiator 112 is electrically connected to the metal substrate 130 through the inductor 170 and the second grounding point 162 in sequence to realize grounding. The user can select the appropriate inductor 170 as desired to improve the performance of the antenna.

For example, please refer to fig. 9, and fig. 9 is a schematic structural diagram of another portion of the middle frame assembly according to an embodiment of the present disclosure. The middle frame assemblies shown in fig. 9 may each include a metal bezel 120, a metal substrate 130, and a radiator 110. The metal substrate 130 can refer to the above contents, and is not described herein again. The metal frame 120 can refer to the above contents, and is not described herein again. The radiator 110 can refer to the above contents, and is not described herein again.

It should be noted that a variable inductor 180 is disposed between the second radiator 112 and the second grounding point 162, that is, the second radiator 112 is electrically connected to the metal substrate 130 through the variable inductor 180 and the second grounding point 162 in sequence to realize grounding. The user can adjust the value of the variable inductance 180 as needed to improve the performance of the antenna.

Referring to fig. 10, fig. 10 is a schematic structural diagram of an antenna according to an embodiment of the present application. The antenna assembly 1 may include a substrate 130 and a metal bezel 120.

The substrate 130 may be a metal substrate 130, and the metal substrate 130 may be a magnesium alloy substrate, which may be referred to above specifically and will not be described herein again.

The metal frame 120 may be a magnesium alloy frame, which can be referred to above specifically, and is not described herein again.

In some embodiments, the metal substrate 130 and the metal bezel 120 may be integrally formed by injection molding to form a plurality of slots and a plurality of radiators. The gap can refer to the above contents, and is not described herein again. The radiator can refer to the above contents, and details are not described herein.

The antenna assembly, the middle frame assembly and the electronic device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the above description of the embodiments is only used to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An antenna assembly, comprising a substrate, a metal frame, a radiator, wherein the metal frame is formed on the periphery of the substrate, the antenna assembly further comprises a slot, the slot is located between the metal frame and the substrate, the slot has an opening penetrating through the metal frame from the substrate to the metal frame, the radiator is formed on the metal frame and located at the slot position, the slot comprises a first slot and a second slot, the first slot has a first opening, the second slot has a second opening, the first slot comprises a first notch located at one side of the first opening, and the second slot comprises a second notch located at one side of the second opening; the area of the first gap is larger than that of the second gap;

the radiator comprises a first radiator and a second radiator, a clearance hole is formed between the first radiator and the second radiator and is an earphone hole or a USB interface, the first radiator and the second radiator are mutually insulated through the clearance hole, the first radiator is adjacent to the first gap, and the second radiator is adjacent to the second gap; wherein the clearance hole is located between the first and second openings;

the antenna assembly further comprises a first grounding point, a first feeding point and a second grounding point, the first radiator is electrically connected with the first grounding point and the first feeding point, the second radiator is electrically connected with the second grounding point, and the second radiator receives and transmits the middle frequency band under the coupling excitation of the first radiator.

2. The antenna assembly of claim 1, wherein the earphone hole is for insertion of an earphone and the USB interface is for insertion of a USB connector.

3. The antenna assembly of claim 1, wherein the first radiator and the second radiator are located on a same side of the metal bezel.

4. An antenna assembly according to any one of claims 1-3, characterized in that an inductance is provided between the second ground point and the second radiator.

5. The antenna assembly of claim 4, wherein the inductance is a variable inductance.

6. A center frame assembly, comprising: the middle frame assembly further comprises a gap, the gap is located between the metal frame and the metal substrate, the gap is provided with an opening penetrating through the metal frame from the metal substrate to the metal frame, the radiator is formed on the metal frame and located at the position of the gap, and the non-metal substrate is arranged in the gap; the gap comprises a first gap and a second gap, the first gap is provided with a first opening, the second gap is provided with a second opening, the first gap comprises a first notch positioned on one side of the first opening, and the second gap comprises a second notch positioned on one side of the second opening; the area of the first gap is larger than that of the second gap;

the middle frame assembly further comprises a first grounding point, a first feeding point and a second grounding point, the first radiator is electrically connected with the first grounding point and the first feeding point, the second radiator is electrically connected with the second grounding point, and the second radiator receives and transmits a middle frequency band under the coupling excitation of the first radiator through the clearance hole; and a variable inductor is arranged between the second grounding point and the second radiator to adjust the intermediate frequency band.

7. The center frame assembly according to claim 6, wherein the earphone hole is used for inserting an earphone, and the USB interface is used for inserting a USB connector.

8. The middle frame assembly according to claim 6, wherein the first radiator and the second radiator are located on a same side of the metal bezel.

9. An electronic device comprising a middle frame assembly according to any one of claims 6 to 8 and a circuit board electrically connected to the radiator.