CN110165377B - Antenna assembly and electronic equipment - Google Patents
Antenna assembly and electronic equipment Download PDFInfo
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- CN110165377B CN110165377B CN201910475258.XA CN201910475258A CN110165377B CN 110165377 B CN110165377 B CN 110165377B CN 201910475258 A CN201910475258 A CN 201910475258A CN 110165377 B CN110165377 B CN 110165377B
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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 utility model provides an antenna module, including first coil, second coil and contact coupling assembling, this first coil is used for pasting the dress on the inner wall of electronic equipment's back lid, and the second coil is used for pasting on the relative electronic component of inner wall, and the first feed point of this first coil is presented the point and is passed through contact coupling assembling and be connected electrically with the second of second coil, and in electronic equipment, the current direction in the first coil is the same with the current direction in the second coil. By using the contact-type connecting assembly, the first coil and the second coil can be separated, so that the requirement on effective area can be reduced on the basis of ensuring the performance, and the miniaturization design can be effectively realized; the double-coil mode can enhance the generated magnetic field intensity and improve the performance of the antenna; because two coils can paste respectively on the inner wall of back lid, and on relative electronic component, do not need the base plate to bear, can effectual reduction this antenna module space that occupies in electronic equipment.
Description
Technical Field
The application relates to the technical field of antennas, in particular to an antenna assembly and electronic equipment.
Background
In recent years, research on Near Field Communication (NFC) technology is mainly distributed in four fields, including theory and development of NFC, basic research on NFC, research on NFC applications and services, research on NFC application environments, and the like. At present, NFC technology is widely used in electronic devices, such as mobile phones.
However, due to the limited structure of the electronic device and the requirement of the NFC performance, the antenna with the NFC function has a series of problems such as difficulty in implementing a miniaturized design, poor performance of the antenna, and large occupied space.
Disclosure of Invention
The embodiment of the application provides an antenna module and electronic equipment for solve the problem that the antenna is difficult to realize miniaturized design, the antenna performance is poor and the occupied space is large.
In a first aspect, an embodiment of the present application provides an antenna assembly, including: the electronic device comprises a first coil, a second coil and a contact type connecting assembly, wherein the first coil is attached to the inner wall of a rear cover of the electronic device, and the second coil is attached to an electronic component opposite to the inner wall of the rear cover in the electronic device;
the first feed point of the first coil and the second feed point of the second coil are electrically connected through the contact connection assembly, and in the electronic device assembled with the antenna assembly, the direction of current in the first coil is the same as the direction of current in the second coil.
In a second aspect, an embodiment of the present application provides an electronic device, including:
a rear cover including an inner wall facing an interior of the electronic device;
the electronic component is arranged in the electronic equipment and is arranged opposite to the inner wall of the rear cover, and a feed source is arranged on the surface of the electronic component opposite to the inner wall of the rear cover;
the antenna assembly of the first aspect, and a current connection assembly for making an electrical connection between the antenna assembly and the feed.
The embodiment of the application provides an antenna assembly, which comprises a first coil, a second coil and a contact connection assembly, wherein the first coil is used for being attached to the inner wall of a rear cover of an electronic device, the second coil is used for being attached to an electronic component opposite to the inner wall of the rear cover in the electronic device, a first feed point of the first coil and a second feed point of the second coil are electrically connected through the contact connection assembly, and in the electronic device with the antenna assembly assembled, the current direction in the first coil is the same as the current direction in the second coil. By using the contact-type connecting assembly, the first coil and the second coil can be separated, and the requirement on effective area can be reduced on the basis of ensuring the performance by the way of separately arranging the two coils, so that the miniaturization design is effectively realized; the double-coil mode can enhance the generated magnetic field intensity and improve the performance of the antenna; in addition, because two coils can be respectively pasted on the inner wall of the rear cover and the electronic component opposite to the inner wall of the rear cover, other components are not needed for bearing, and the space occupied by the antenna component in the electronic equipment can be effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application;
fig. 2 is a schematic structural diagram illustrating an antenna assembly mounted in an electronic device according to an embodiment of the present application;
fig. 3 is a schematic flow chart illustrating another structure of an antenna assembly mounted in an electronic device according to an embodiment of the present application;
FIGS. 4a to 4c are schematic views showing connection relationships of antenna elements in an electronic device;
fig. 5a is a schematic diagram of a mounting manner of a first coil provided in the present application;
fig. 5b is a schematic view of another mounting manner of the first coil provided in the present application;
fig. 6 is a schematic structural diagram of the second coil arrangement in the embodiment of the present application.
Detailed Description
In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application. 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.
Referring to fig. 1, a schematic structural diagram of an antenna assembly according to an embodiment of the present application is provided, where the antenna assembly is applied to an electronic device, the electronic device includes a mobile phone, a wearable device, and other terminals, and the antenna assembly includes a first coil 101, a second coil 102, and a contact connection component 103, where the first coil 101 is used for being attached to an inner wall of a rear cover of the electronic device, and the second coil 102 is used for being attached to an electronic component opposite to the inner wall of the rear cover in the electronic device. Wherein, the rear cover is a nonmetal rear cover.
The first coil 101 and the second coil 102 each have two feed points, and a first feed point of the first coil 101 and a second feed point of the second coil 102 are connected by a contact connection assembly 103. It is understood that the first feed point is any one of the two feed points of the first coil 101, the second feed point is any one of the two feed points of the second coil 102, and no metal piece is present between the first coil 101 and the second coil 102.
In the embodiment of the present application, the contact connection component 103 is a component that can form an electrical connection, conduct an electrical circuit, and transmit current after being contacted by a contact manner. It can be understood that the first coil 101 and the second coil 102 are electrically connected by using the contact connection assembly 103, so that the electrical connection between the first coil 101 and the second coil 102 can be disconnected when necessary, and the first coil 101 and the second coil 102 can be separated, so that the mounting manner of the first coil 101 and the second coil 102 is more flexible.
The electronic component facing the inner wall of the rear cover is an electronic component corresponding to the entire inner wall of the electronic device, and includes a main board voltage and a battery, where the main board voltage and the battery may have a layout-enabled region, and the second coil 102 may be disposed in the layout-enabled region.
In the electronic device assembled with the antenna assembly, the current direction in the first coil 101 is the same as the current direction in the second coil 102, so that the magnetic field vector generated by the first coil 101 and the magnetic field vector generated by the second coil 102 can be superposed, and the magnetic field intensity is increased. It can be understood that, under the condition that the requirement of magnetic field intensity is fixed, compared with the condition that only one coil is used for generating a magnetic field vector, the size of the coil used can be effectively reduced by using the antenna assembly in the application, and due to the separated design of the two small-sized coils, the requirement on space is reduced, and the antenna assembly is suitable for the development trend that the available space inside the electronic equipment is smaller and smaller, and the electronic equipment is thinner and thinner.
In the embodiment of the application, the first coil 101 and the second coil 102 are separable by using the contact-type connection assembly 103, and the requirement on effective area can be reduced on the basis of ensuring performance by separately arranging the two coils, so that a miniaturized design is effectively realized; the double-coil mode can enhance the generated magnetic field intensity and improve the performance of the antenna; in addition, because two coils can be respectively pasted on the inner wall of the rear cover and the electronic component opposite to the inner wall of the rear cover, other components are not needed for bearing, and the space occupied by the antenna component in the electronic equipment can be effectively reduced.
Referring to fig. 2, a schematic structural diagram of an antenna assembly mounted in an electronic device according to an embodiment of the present invention is shown based on the structure of the antenna assembly shown in fig. 1, including:
the first coil 101, the second coil 102, and the contact connection component 103 are similar to those described in the embodiment shown in fig. 1, and are not described herein again.
The first coil 101 has two feeding points, respectively feeding point a1 and feeding point B1, and the second coil also has two feeding points, respectively feeding point a2 and feeding point B2, where the feeding point located inside the coil is usually called an inner feeding point and the feeding point located outside the coil is called an outer feeding point, so that the feeding point a1 and the feeding point a2 are inner feeding points and the feeding point B1 and the feeding point B2 are outer feeding points. The first coil 101 is attached to the inner wall 1041 of the rear cover 104, the second coil 102 is attached to the electronic component 105 opposite to the inner wall 1041, wherein four vertexes on the inner wall 1041 are respectively C1, D1, E1 and F1, the electronic component 105 opposite to the first coil has four vertexes respectively corresponding to C2, D2, E2 and F2, and when the rear cover 104 covers the electronic component, the opposite vertexes are overlapped, for example, C1 and C2 are overlapped. It should be noted that, in a covered scenario, one of the feed points of the first coil 101 and one of the feed points of the second coil 102 are connected by the contact connection assembly 103, and it should be noted that, in the embodiment shown in fig. 2, a feasible implementation manner is realized, that is, the inner feed point of the first coil 101 and the inner feed point of the second coil 102 are connected by the contact connection assembly 103, and one end of the contact connection assembly 103 is fixed to the inner feed point of the first coil. In addition, regardless of the connection method, it is only necessary to ensure that the current directions in the first coil 101 and the second coil 102 are the same.
In this embodiment of the present application, there are various connection manners of the first feed point of the first coil 101 and the second feed point of the second coil 102, and there are also various shapes formed by the first coil 101 and the second coil 102, which can be set based on needs and practical situations in practical applications, and the following feasible manners are introduced in this embodiment of the present application:
1. the first feed point and the second feed point are both internal feed points, and in the electronic device assembled with the antenna assembly, the second coil 102 is mapped to a first area on the rear cover 104 and completely or partially overlaps with a second area formed by the first coil 101 on the non-metal battery connection cover 102.
That is, in one possible embodiment, the first feed point is feed point a1 in fig. 2 and the second feed point is feed point a2 in fig. 2, and in a scenario where the antenna assembly is assembled to an electronic device, feed point a1 and feed point a2 form an electrical connection through contact connection assembly 103. As shown in fig. 2, since the first coil 101 and the second coil 102 have the same size, a first area formed by the second coil 102 mapped on the back cover 104 and a second area formed by the first coil 101 on the back cover 104 completely overlap. It is understood that the first coil 101 and the second coil 102 are partially overlapped if they are not the same size.
2. The first feed point and the second feed point are external feed points, and in the electronic device with the assembled antenna assembly, the second coil 102 is mapped to a first area of the rear cover 104 and has no overlapping area with a second area formed by the first coil 104 on the rear cover 104.
Please refer to fig. 3, which is another structural diagram illustrating an antenna assembly mounted in an electronic device according to an embodiment of the present invention, wherein the first feed point is a feed point B1 shown in fig. 3, and the second feed point is a feed point B2 shown in fig. 3, in a coverage scenario, the feed point B1 and the feed point B2 are electrically connected through the contact connection component 103, as shown in fig. 3, since there is no overlapping area between the first area of the rear cover 104 mapped by the second coil 102 and the second area of the rear cover 104 of the first coil 101. When no overlapping area exists, the card swiping area of the NFC function can be effectively increased by utilizing the antenna assembly to realize the NFC function.
It should be noted that, under the inventive concept of the present application, the layout and size of the first coil 101 and the second coil 102 are not limited, and only the requirement of satisfying the requirement of the magnetic field strength and the requirement of satisfying the same current direction in the first coil 101 and the second coil 102 after the electrical connection is satisfied.
In the embodiment of the present application, the contact connection assembly 103 has at least two implementation manners, one is a metal elastic piece, and the other is a metal connection column.
When the contact connection assembly 103 is a metal dome, one end of the metal dome is fixedly connected to the first feed point of the first coil 101, and the other end of the metal dome extends along a direction substantially perpendicular to the plane of the first coil 101, and in the electronic device with the antenna assembly assembled, the other end of the metal dome is in contact with the second feed point of the second coil 102 to form an electrical connection. Alternatively, one end of the metal elastic sheet is fixedly connected to the second feed point of the second coil 102, and the other end of the metal elastic sheet extends along a direction substantially perpendicular to the plane of the second coil, and in the electronic device in which the antenna assembly is assembled, the other end of the metal elastic sheet is in contact with the first feed point of the first coil 101 to form an electrical connection.
The metal elastic sheet has certain elasticity, when being installed, the metal elastic sheet can be electrically connected with the second feed point of the second coil 102 only by ensuring that the metal elastic sheet is in contact with the second feed point, and when the metal elastic sheet is in contact with the second feed point, the elasticity of the metal elastic sheet is 0 or more than 0 (namely, the metal elastic sheet is in a compression state).
When the contact connection assembly 103 is a metal connection column, one end of the metal connection column is fixedly connected to the first feed point of the first coil 101, and in the electronic device with the antenna assembly assembled, the other end of the metal connection column is in contact with the second feed point of the second coil 102 to form an electrical connection. Alternatively, one end of the metal connection post is fixedly connected to the second feed point of the second coil 102, and the other end of the metal connection post is electrically connected to the first feed point of the first coil 101 in the electronic device in which the antenna assembly is assembled.
It can be understood that the metal connection post is generally not elastic or very elastic, so that it is required to precisely measure the distance between the inner wall of the rear cover and its corresponding electronic component, the thickness of the first coil 101 and the second coil 102, so as to accurately calculate the length of the post of the metal connection post, so as to achieve accurate contact.
In the embodiment of the present application, the first coil 101 and the second coil 102 can be separately mounted by using a metal elastic sheet or a metal connecting column.
In order to better understand the technical solution in the embodiments of the present invention, an electronic device including the above antenna assembly will be described below, the electronic device including the rear cover 104 as in the previous embodiments, the rear cover 104 including an inner wall 1041 facing the inside of the electronic device; an electronic component 105 which is disposed inside the electronic device and is disposed opposite to the inner wall 1041 of the rear cover 104, and a feed source is disposed on a surface of the electronic component 105 opposite to the inner wall of the rear cover 104; the antenna assembly in the previous embodiment, and a current connection assembly, wherein the current connection assembly is used for realizing the electric connection between the antenna assembly and the feed source.
It should be noted that in the embodiment of the present application, in the case that the first feed point and the second feed point in the antenna assembly have been connected by the contact connection assembly 103, the parallel connection or the series connection between the first coil 101 and the second coil 102 may be implemented by using a current connection assembly, and at least the following possible ways are available:
the first method is as follows: please refer to fig. 4a, which is a schematic diagram illustrating a connection relationship between an antenna assembly and an electronic device according to an embodiment of the present disclosure, wherein a first feeding point of a first coil 101 and a second feeding point of a second coil 102 are inner feeding points, that is, a feeding point a1 and a feeding point a2, respectively, one end of the current connection assembly 106 is fixedly connected to an outer feeding point B1 of the first coil 101, the other end of the current connection assembly is in contact with and electrically connected to one end of a feeding source 107, and the other end of the feeding source 107 is electrically connected to an outer feeding point B2 of the second coil 102, so that the first coil 102 and the second coil 102 form a series circuit.
In the embodiment shown in fig. 4a, if the end of the feed 107 connected with the external feed point B2 of the second coil 102 is the output end, the current will be input into the antenna assembly from the external feed point B2 of the second coil 102 and transmitted in the counterclockwise direction in the second coil 102 until being transmitted to the internal feed point a2, and since the internal feed point a2 is in contact with a contact end A3 of the contact connection assembly 103 to form an electrical connection, the current will flow into the contact connection assembly 103 from the contact end A3, since the fixed end of the contact connection assembly 103 is fixed with the internal feed point a1 of the first coil 101, the current will flow into the first coil 101 from the internal feed point a1, and after being transmitted in the counterclockwise direction (the same direction of the current as the second coil 102) in the first coil 101, to the external feed point B1 of the first coil 101, and since the external feed point B1 is connected with one end of the current-connecting assembly 106, and since the other end G1 of the current-connecting assembly 106 is in contact with the input end G2 of the feed, thus, current will return from the input G2 of the feed 107 to the feed 107, completing the transfer of current between the first coil 101 and the second coil 102 in series.
The second method comprises the following steps: please refer to fig. 4B, which is another schematic diagram of a connection relationship of an antenna assembly in an electronic device according to an embodiment of the present disclosure, wherein the first feed point of the first coil 101 and the second feed point of the second coil 102 are both inner feed points, that is, a feed point a1 and a feed point a2, respectively, one end of the current connection element 106 is fixedly connected to an outer feed point B1 of the first coil 101, the other end G1 is in contact with and electrically connected to an outer feed point B2 of the second coil 102, the outer feed point B2 of the second coil 102 is connected to one end G3 of the feed 107, and the inner feed point a2 of the second coil 102 is connected to the other end G2 of the feed 107, so that the first coil 101 and the second coil 102 form a parallel circuit.
In the embodiment shown in fig. 4B, if the output terminal of the power supply of the feed 107 is G2, current will be output from the output terminal G2, since the output terminal G2 is connected to the feed point a2, the current output from the output terminal G2 will be input from the feed point a2 to the second coil 102 and transmitted clockwise in the second coil 102, and since the first coil 101 and the second coil 102 are connected in parallel, the current will also flow to the first coil 101 in the order of the feed point a2, the terminal A3, and the feed point a1, and the flow direction in the first coil 101 is the same as that in the second coil 102, wherein the current will flow to the external feed point B1 in the first coil 101 and flow to the feed 107 through the external feed point B1, the terminal G1, the external feed point B2, and the terminal G3, and the current in the second coil 102 will flow from the external feed point B2, the terminal G3 to the feed 107, completing the current transmission between the first coil 101 and the second coil 102 connected in parallel.
The third method comprises the following steps: please refer to fig. 4c, which is another schematic diagram of a connection relationship of an antenna assembly in an electronic device according to an embodiment of the present disclosure, wherein the first feed point of the first coil 101 and the second feed point of the second coil 102 are both external feed points, that is, a feed point B1 and a feed point B2, respectively, one end of the current connection element 106 is fixedly connected to an internal feed point a1 in the first coil 101, the other end G1 is in contact with and electrically connected to one end G2 of the feed 107, and the other end G3 of the feed 107 is electrically connected to an internal feed point a2 of the second coil 102, so as to form a series circuit of the first coil 101 and the second coil 102.
In the embodiment shown in fig. 4c, if the terminal G3 of the feed 107 is an output terminal of the power supply, the current is output from the terminal G3 to the inner feed point a2, and flows clockwise in the second coil 102 to the outer feed point B2, and the outer feed point B2 is connected to the outer feed point B1 of the first coil 101 through the contact connection component 103, so that the current will be transmitted to the first coil 101 through the outer feed point B2, the contact connection component 103, and the outer feed point B1 in turn, and flows to the inner feed point a1 of the first coil 101 in the same current direction as the second coil 102 in the first coil 101, and flows to the feed 107 through the inner feed point a1, the current connection component 106, the terminal G1, and the terminal G2, thereby completing the transmission of the current between the first coil 101 and the second coil 102 connected in series.
It should be noted that, in the embodiment of the present application, the current connection component 106 may be a metal elastic piece or a metal connection column, and a usage manner when the metal elastic piece is the same as a usage manner when the contact connection component 103 is the metal elastic piece, and a usage manner when the metal connection column is the same as a usage manner when the contact connection component 103 is the metal connection column, in practical application, two metal elastic pieces may be used as the contact connection component 103 and the current connection component 106, or two metal connection columns may be used as the contact connection component 103 and the current connection component 106, or one metal elastic piece and one metal connection column may be used to correspond to the contact connection component 103 and the current connection component 106, and in practical application, the metal elastic pieces and the metal connection column may be arranged according to specific needs, and.
In the embodiment of the present application, the inner wall of the back cover 104 has a plurality of electronic components, and when the second coil 102 is disposed, the electronic components may be disposed on only one electronic component, for example, the electronic component may be a motherboard platen, or a battery, or may be disposed on both the motherboard platen and the battery. In practical applications, the layout component can be selected based on the requirement, and is not limited herein.
When the second coil 102 is attached to the main board pressing plate, the second coil 102 is specifically attached to a surface of the main board pressing plate opposite to the rear cover.
When the second coil 102 is attached to the battery, the second coil 102 is specifically attached to a surface of the battery opposite to the rear cover 104.
In this application embodiment, through using two coils for can satisfy the demand that the size of coil is little and the demand that magnetic field intensity satisfies the requirement under electronic equipment to the strict scene of the size requirement that uses single coil, provide better magnetic field intensity when realizing the miniaturized design, improve the performance of antenna module. On the other hand, mount first coil 101 on the inner wall of back lid, and mount second coil 102 on the electronic component that the inner wall of back lid corresponds, and connect first coil 101 and second coil 102 through contact coupling assembling 103, make can realize disconnect-type antenna, it is nimble to mount the mode, and because this kind of mounting mode need not use the base plate, need not realize mounting first coil 101 and second coil 102 through the base plate promptly, can reduce the use of material, and reduce the occupation of the space in the electronic equipment of antenna module, accord with the development demand of electronic equipment.
In the above embodiment, the coil is described as being rectangular, but in practical application, the shape of the coil is not limited to be rectangular, and may be other regular or irregular shapes.
In the embodiment of the present invention, the first coil 101 is attached to the inner wall of the rear cover of the electronic apparatus, but there is a region on the inner wall of the rear cover where the coil cannot be attached, for example, a camera region, and therefore, the first coil is formed with a first recess portion for matching with a region on the rear cover where the electronic components are disposed. Specifically, the edges of the first coil 101 adjacent to the camera area on the inner wall of the rear cover 104 are matched with the shape of the camera area in an inward concave manner, as shown in fig. 5a and 5b, the edges are schematic diagrams of a mounting manner of the first coil 101, where fig. 5a is a schematic diagram of a rectangular coil arranged in a limited layout area where the first coil 101 can be arranged, and fig. 5b is a schematic diagram of a coil arranged in an inward concave manner when the edges adjacent to the camera area are matched with the camera area. As can be seen from fig. 5a and 5b, when the layout-enabled area is limited, the layout-type coil of fig. 5b has a larger effective area, and can provide a stronger magnetic field. It can be understood that, attaching the first coil 101 to the inner wall of the back cover, because the area of the inner wall of the back cover is large, an effective interview of a sufficiently large coil can be set as required, which further improves the magnetic field strength generated by the antenna assembly and the performance.
In the embodiment of the present application, when the electronic component has a layout enabled area in which the second coil 102 can be laid, the second coil 102 has a second recessed portion for matching with the layout enabled area of the electronic component, so that the second coil 102 is attached within the layout enabled area in a shape matching with the shape of the layout enabled area. Fig. 6 is a schematic structural diagram of the second coil arrangement in the embodiment of the present application.
In the embodiment of the present application, the advantages of the performance of the antenna assembly are proved by experimental verification, and the comparison group is: single layer coil with coil face test of 35 x 36.5mm2The line width is 1mm, and the line spacing is 0.5 mm; validation set 1 was: taking the embodiment shown in fig. 2 as an example, after the rear cover is buckled, the first coil 101 and the second coil 102 are overlapped, and are electrically connected by a contact connection assembly using a feed point a1 and a feed point a 2. And the areas of the first coil 101 and the second coil 102 are 35 × 36.5mm2The line width is 1mm, and the line spacing is 0.5mm, and the distance between first coil 101 and second coil 102 is 0.045mm, connects through the metal connecting post electricity.
Validation set 2 was: reduced version of the data for validation set 1 except that the coil size was reduced to 22 x 23.5mm2The others are the same as verification group 1.
The simulation is carried out through preset simulation software, the feed source is set to be a 1A constant current source, the magnetic field intensity generated by each group of antenna assemblies is compared, and the simulation result is as follows:
as can be seen from the simulation results, when the size of the first coil 101 and the size of the second coil 102 of the antenna assembly (verification group 1) in the embodiment of the present application are the same, the magnetic field intensity generated by the antenna assembly (verification group) is about 20 times that of a single-layer coil (comparison group), and the effective range of the antenna assembly can be effectively increased; when the area of the antenna assembly (proof group 2) in the embodiment of the present application is reduced to one-fourth of that of the single-layer coil (control group), the magnetic field strength generated by the proof group 2 is also higher than that of the control group. Therefore, through the mode of double-deck coil of disconnect-type design in this application, can reduce the effective area of coil under the prerequisite that provides required magnetic field intensity for the coil pastes the shared area of dress and diminishes, realizes the miniaturized design of antenna module.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the technical solutions provided in the present application, those skilled in the art will recognize that there may be variations in the specific embodiments and applications of the concepts provided in the embodiments of the present application.
Claims (13)
1. An antenna assembly, characterized in that the antenna assembly comprises: the electronic device comprises a first coil, a second coil and a contact type connecting assembly, wherein the first coil is attached to the inner wall of a rear cover of the electronic device, the second coil is attached to an electronic component opposite to the inner wall of the rear cover in the electronic device, and the first coil and the second coil can be separated;
the first feed point of the first coil and the second feed point of the second coil are electrically connected through the contact connection assembly, and in the electronic device assembled with the antenna assembly, the direction of current in the first coil is the same as the direction of current in the second coil.
2. The antenna assembly of claim 1, wherein the contact connection assembly comprises: a metal spring sheet;
one end of the metal elastic sheet is fixedly connected with the first feed point of the first coil, the other end of the metal elastic sheet extends along the direction which is approximately vertical to the plane of the first coil, and in the electronic equipment assembled with the antenna assembly, the other end of the metal elastic sheet is in contact with the second feed point of the second coil to form electric connection;
alternatively, the first and second electrodes may be,
one end of the metal elastic sheet is fixedly connected with the second feed point of the second coil, the other end of the metal elastic sheet extends along the direction approximately perpendicular to the plane of the second coil, and in the electronic equipment assembled with the antenna assembly, the other end of the metal elastic sheet is in contact with the first feed point of the first coil to form electric connection.
3. The antenna assembly of claim 1, wherein the contact connection assembly comprises: a metal connecting column;
one end of the metal connecting column is fixedly connected with a first feed point of the first coil, and the other end of the metal connecting column is in contact with a second feed point of the second coil to form electric connection in the electronic equipment assembled with the antenna assembly;
alternatively, the first and second electrodes may be,
one end of the metal connecting column is fixedly connected with the second feed point of the second coil, and the other end of the metal connecting column is in contact with and electrically connected with the first feed point of the first coil in the electronic equipment assembled with the antenna assembly.
4. The antenna assembly of claim 1, wherein the first feed point and the second feed point are both inner feed points;
in the electronic device in which the antenna assembly has been assembled, the second coil is mapped to a first region on the rear cover, and completely overlaps or partially overlaps with a second region formed on the rear cover by the first coil.
5. The antenna assembly of claim 1, wherein the first feed point and the second feed point are each external feed points;
in the electronic device in which the antenna assembly has been assembled, the second coil is mapped to a first region on the rear cover without an overlapping region with a second region formed by the first coil in the rear cover.
6. The antenna assembly of any one of claims 1 to 5, wherein the electronic component is a motherboard platen;
the second coil is used for being attached to the surface of the main board pressing plate opposite to the rear cover.
7. The antenna assembly of any one of claims 1 to 5, wherein the electronic component is a battery;
the second coil is used for being attached to the surface of the battery opposite to the rear cover.
8. The antenna assembly of any one of claims 1 to 5, wherein the first coil is formed with a first recess for mating with an area on the rear cover for placement of an electronic component.
9. The antenna assembly of any one of claims 1 to 5, characterized in that the second coil has a second recess for matching with a deployable area of the electronic component.
10. An electronic device, characterized in that the electronic device comprises:
a rear cover including an inner wall facing an interior of the electronic device;
the electronic component is arranged in the electronic equipment and is arranged opposite to the inner wall of the rear cover, and a feed source is arranged on the surface of the electronic component opposite to the inner wall of the rear cover;
an antenna assembly as claimed in any one of claims 1 to 9, and a current-passing assembly;
the current connection component is used for realizing the electric connection between the antenna component and the feed source.
11. The electronic device of claim 10, wherein the first feed point and the second feed point are inner feed points, one end of the current connection component is fixedly connected with an outer feed point of the first coil, the other end of the current connection component is in contact with one end of the feed source to form an electrical connection, and the other end of the feed source is electrically connected with an outer feed point of the second coil.
12. The electronic device of claim 10, wherein the first feeding point and the second feeding point are inner feeding points, one end of the current connection component is fixedly connected to the outer feeding point of the first coil, the other end of the current connection component is electrically connected to the outer feeding point of the second coil, the outer feeding point of the second coil is connected to one end of a feeding source, and the inner feeding point of the second coil is connected to the other end of the feeding source.
13. The electronic device of claim 10, wherein the first feed point and the second feed point are external feed points, one end of the current connection component is fixedly connected with the internal feed point of the first coil, the other end of the current connection component is in contact with one end of the feed source to form an electrical connection, and the other end of the feed source is electrically connected with the internal feed point of the second coil.
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| CN201910475258.XA CN110165377B (en) | 2019-06-03 | 2019-06-03 | Antenna assembly and electronic equipment |
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| CN201910475258.XA CN110165377B (en) | 2019-06-03 | 2019-06-03 | Antenna assembly and electronic equipment |
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| CN110165377B true CN110165377B (en) | 2021-04-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111508340B (en) * | 2020-04-26 | 2022-04-05 | 厦门天马微电子有限公司 | Display module, preparation method and display device |
| CN112928436B (en) * | 2021-02-01 | 2023-05-26 | 维沃移动通信有限公司 | Electronic equipment |
| CN113036406B (en) * | 2021-03-30 | 2022-11-29 | 北京有竹居网络技术有限公司 | Mobile terminal |
| CN113972468A (en) * | 2021-10-26 | 2022-01-25 | 维沃移动通信有限公司 | Antenna and electronic device |
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