CN112909475A - Antenna assembly and electronic equipment - Google Patents
Antenna assembly and electronic equipment Download PDFInfo
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- CN112909475A CN112909475A CN202110060493.8A CN202110060493A CN112909475A CN 112909475 A CN112909475 A CN 112909475A CN 202110060493 A CN202110060493 A CN 202110060493A CN 112909475 A CN112909475 A CN 112909475A
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 230000005855 radiation Effects 0.000 abstract description 34
- 238000004891 communication Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
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- 238000011056 performance test Methods 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
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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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Abstract
The application provides an antenna assembly and an electronic device. The antenna assembly comprises an antenna and a heat dissipation member. The antenna includes an antenna radiator. The heat dissipation member is provided with a first surface and a second surface which is connected with the first surface in a bending mode, the first surface is used for being connected with the functional component, and the second surface corresponds to the antenna radiation body and is arranged at intervals with the antenna radiation body. Firstly, the radiating element is additionally arranged, the first surface of the radiating element is used for connecting the functional component, and the second surface of the radiating element corresponds to the antenna. The radiating piece can be used for radiating the functional component and can also be used for radiating the antenna at the same time. And secondly, the second surface of the radiating element and the antenna radiating element are arranged at intervals, so that the radiating element is coupled with the antenna radiating element, the radiating element serves as an auxiliary radiating element of the antenna, and the radiation efficiency and the receiving and transmitting performance of the antenna assembly are improved. The antenna radiator is arranged corresponding to the second surface of the radiating element, so that the radiating element and the antenna radiator are horizontally arranged, and the overall thickness is reduced.
Description
Technical Field
The application belongs to the technical field of antennas, and particularly relates to an antenna assembly and electronic equipment.
Background
An antenna is one of important structural members for transceiving electromagnetic wave signals in electronic equipment, and the number of the antennas is increasing with the continuous development of communication technology. The increase of the number of the antennas can increase the frequency range of the antennas for receiving and transmitting electromagnetic wave signals, but can increase the load of the electronic equipment, improve the heat dissipation of the antennas during working and reduce the service life of the electronic equipment.
Disclosure of Invention
In view of this, the present application provides in a first aspect an antenna assembly comprising:
an antenna comprising an antenna radiator;
the radiating piece is provided with a first surface and a second surface which is connected with the first surface in a bent mode, the first surface is used for connecting a functional component, and the second surface corresponds to the antenna radiating body and is arranged at intervals with the antenna radiating body, so that the radiating piece is coupled with the antenna radiating body and serves as an auxiliary radiating body of the antenna.
The antenna assembly provided by the first aspect of the present application is, first, configured by additionally providing a heat dissipation element, and enabling a first surface of the heat dissipation element to be used for connecting a functional assembly, and a second surface of the heat dissipation element to correspond to an antenna radiation body. The radiating piece can be used for radiating for the functional component, and can also be used for radiating the antenna at the same time, so that heat generated during the operation of the antenna is led away from the radiating body of the antenna through the radiating piece, and the radiating performance and the service life of the antenna are improved.
Secondly, this application makes the second surface of radiating piece and antenna radiator interval set up to make the radiating piece with antenna radiator coupling, and then make the radiating piece act as the auxiliary radiator of antenna. The heat dissipation piece provided by the application has the function of receiving and transmitting electromagnetic wave signals besides the heat dissipation function. By coupling the radiating piece with the antenna radiating body, when the antenna works, the antenna radiating body can be used for receiving and transmitting electromagnetic wave signals, and the auxiliary radiating body can be used for receiving and transmitting electromagnetic wave signals, so that the range of the antenna for receiving and transmitting the electromagnetic wave signals is enlarged, the working frequency band of the antenna is increased, the antenna assembly has a good communication effect, and the radiation efficiency and the receiving and transmitting performance of the antenna assembly are improved. In addition, the radiating piece can serve as an auxiliary radiating body of the antenna, so that the working frequency band of the antenna is widened, the frequency band coverage with the same width can be achieved without additionally increasing the number of the antennas, the number of the antennas is reduced in a phase-changing manner, and the design difficulty of the antennas is reduced in a limited assembly space.
Thirdly, when the functional unit is connected to the first surface of the radiating piece, the antenna radiating piece can be arranged on the second surface of the radiating piece, and the radiating piece and the antenna radiating piece can be horizontally arranged, so that the overall thickness of the radiating piece and the antenna radiating piece is reduced, and the assembling space is fully utilized.
To sum up, the antenna module that this application first aspect provided, the heat dispersion and the radiant efficiency of antenna are improved simultaneously to the accessible radiating element, still can reduce holistic thickness, have improved the life of antenna.
A second aspect of the present application provides an electronic device, comprising:
the middle frame comprises a body and a side wall connected with the periphery of the body in a bending way;
the functional component is arranged on the body and is close to the side wall; and
the antenna assembly as provided in the first aspect of the application, the antenna radiator being connected to the side wall, or at least part of the side wall forming the antenna radiator.
The electronic equipment that this application second aspect provided, through utilizing the antenna module that this application first aspect provided, set up the functional unit on the body of center to make it close to the lateral wall setting. While the antenna radiator is connected to the side walls or is constituted by at least part of the side walls. The first surface of the radiating piece is connected with the functional component, and the second surface corresponds to the antenna radiating body and is arranged at intervals with the antenna radiating body, so that the functional component and the antenna can be simultaneously radiated, the radiation efficiency and the receiving and transmitting performance of the antenna can be improved, the design difficulty of the antenna is reduced, and the thickness of the whole electronic equipment can be reduced.
Drawings
In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.
Fig. 1 is a top view of an antenna assembly according to an embodiment of the present application.
Fig. 2 is a schematic sectional view taken along a-a in fig. 1.
Fig. 3 is a schematic cross-sectional view illustrating an antenna assembly and a functional assembly according to another embodiment of the present application.
Fig. 4 is a top view of an antenna assembly according to another embodiment of the present application.
Fig. 5 is a top view of an antenna assembly according to yet another embodiment of the present application.
Fig. 6 is a top view of an antenna assembly according to yet another embodiment of the present application.
Fig. 7 is a top view of an antenna assembly according to yet another embodiment of the present application.
Fig. 8 is a top view of an electronic device in an embodiment of the application.
Fig. 9 is a schematic cross-sectional view taken along the direction B-B in fig. 8.
Fig. 10 is a top view of an electronic device in accordance with yet another embodiment of the present application.
Fig. 11 is a top view of an electronic device in accordance with yet another embodiment of the present application.
Fig. 12 is a schematic cross-sectional view taken along the direction C-C in fig. 11.
Fig. 13 is a top view of an electronic device in accordance with yet another embodiment of the present application.
Fig. 14 is a schematic cross-sectional view taken along the direction D-D in fig. 13.
FIG. 15 is a schematic cross-sectional view taken along the line B-B in yet another embodiment of the present application.
FIG. 16 is a schematic cross-sectional view taken along the line B-B in yet another embodiment of the present application.
Fig. 17 is a top view of an electronic device in accordance with yet another embodiment of the present application.
Description of reference numerals:
the antenna assembly-1, the electronic device-2, the antenna-10, the antenna radiator-11, the heat sink-20, the first surface-21, the second surface-22, the third surface-23, the fourth surface-24, the bending surface-25, the functional assembly-30, the protective shell-31, the functional element-32, the middle frame-40, the body-41, the side wall-42, the functional module-50, the battery-60, the adhesive element-70, the convex column-80, the connecting column-90 and the positioning area-N.
Detailed Description
The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.
Before the technical solutions of the present application are introduced, the technical problems in the prior art will be described in detail.
An antenna is one of important parts of an electronic device, and plays a role in transmitting and receiving electromagnetic wave signals. With the rapid development of wireless communication technology and the mature use of 4G, the fifth generation (5G) wireless communication system will be in full commercial use in 2020. The 5G wireless communication system will use the following two different main frequency bands: below 6GHz and above 6 GHz. The 5G antenna system below 6GHz is preferably used because of the advantages of strong operability and mature technology below 6 GHz. And in fourth generation mobile communication (4G) systems, 2 × 2 Multiple Input Multiple Output (MIMO) antennas have been widely researched and used in handheld mobile devices. According to the research results in various countries, the peak rate of the 5G technology is increased by tens of times compared with the current 4G technology, so in order to meet the requirement of 5G transmission rate, the number of antennas is increased: a 4 antenna system or more antennas will be used to achieve greater channel capacity and better communication quality. In addition, although the MIMO antenna structure having multiple antennas can solve the multipath fading problem well and improve data throughput. This doubles the number of antennas: the number of the traditional 3-6 is increased to about 10, but the design difficulty of the mobile phone antenna in a limited space is increased. It will also be appreciated that due to the limited space available in handheld devices such as cell phones, it is a challenge to design antennas with small size multi-band coverage.
In addition, another challenge faced in the antenna technology at present is how to design a broadband or multi-band antenna system to cover the wider 4G, 5G, Sub-6GHz band. For example, in order to enable the electronic device to implement 4G full-network communication, the frequency band of the antenna needs to support and cover frequency bands such as B1, B3, B5, B40, and B41. In order to enable the electronic device to realize 5G full-network communication, the frequency band of the antenna needs to support and cover frequency bands such as n41, n78, n79, and the like. In order to achieve the above object, it is also common practice to increase the number of antennas.
Therefore, to solve the above two problems, it is currently generally achieved by increasing the number of antennas. However, the increase of the number of the antennas can increase the load of the electronic device, improve the heat dissipation of the antennas during operation, and reduce the service life of the electronic device, although the frequency range and the radiation efficiency of the antennas for receiving and transmitting electromagnetic wave signals can be improved. Therefore, a technical solution for simultaneously solving the radiation efficiency and the heat dissipation performance of the antenna is urgently needed.
In view of this, in order to solve the above problem, the present embodiment provides an antenna assembly. Referring to fig. 1 to fig. 3, fig. 1 is a top view of an antenna assembly according to an embodiment of the present disclosure. Fig. 2 is a schematic sectional view taken along a-a in fig. 1. Fig. 3 is a schematic cross-sectional view illustrating an antenna assembly and a functional assembly according to another embodiment of the present application. In this embodiment, the antenna assembly 1 includes an antenna 10 and a heat sink 20. The antenna 10 comprises an antenna radiator 11. The heat sink 20 has a first surface 21 and a second surface 22 bent and connected to the first surface 21. The first surface 21 is used for connecting a functional component 30, and the second surface 22 corresponds to the antenna radiator 11 and is spaced apart from the antenna radiator 11, so that the heat sink 20 is coupled to the antenna radiator 11 and serves as an auxiliary radiator of the antenna 10.
The antenna assembly 1 provided in this embodiment includes an antenna radiator 11, and may further include a structural member such as an excitation source. Wherein the excitation source may be mounted to a circuit board and the antenna radiator 11 is mounted to various locations within the electronic device 2, such as the circuit board, the bezel 40, the back cover, the battery 60, etc. The antenna radiator 11 is excited to generate an alternating electric field and a magnetic field around the antenna radiator under the action of an external high-frequency excitation source, the alternating magnetic field and the electric field interact and convert with each other repeatedly to form an electromagnetic wave signal, and the electromagnetic wave signal is transmitted to the surrounding space at a certain speed; at the same time, it can also receive electromagnetic wave signals.
Alternatively, the antennas 10 may be a main set antenna 10 or a diversity antenna 10. The main antenna assembly 10 may receive electromagnetic wave signals or may transmit electromagnetic wave signals. The diversity antenna 10 can only receive electromagnetic wave signals.
The antenna assembly 1 provided by the present embodiment further includes a heat dissipation member 20, and the heat dissipation member 20 is literally thought to have a function of dissipating heat. The heat sink 20 has a plurality of outer surfaces, such as a first surface 21 and a second surface 22 connected to the first surface 21 by bending. I.e. the first surface 21 is in a bent connected relationship with the second surface 22. In the present embodiment, as shown in fig. 2 and 3, the first surface 21 may be understood as a lower surface of the heat sink 20, and the second surface 22 may be understood as a side surface of the heat sink 20. The first surface 21 is used for subsequent connection with the functional component 30 to dissipate heat from the functional component 30 by using the heat sink 20, and it is also understood that the heat sink 20 originally added to dissipate heat from the functional component 30. In this embodiment, the second surface 22 may correspond to the antenna radiator 11. Therefore, the heat dissipation member 20 can be used for dissipating heat of the functional component 30 and also dissipating heat of the antenna 10, and heat generated by the antenna 10 during operation is conducted away from the antenna radiation member 11 through the heat dissipation member 20, so that the heat dissipation performance of the antenna 10 is improved, and the service life of the antenna assembly 1 is prolonged.
Next, the second surface 22 of the heat sink 20 is spaced apart from the antenna radiator 11 in the present embodiment, so that the heat sink 20 and the antenna radiator 11 can be coupled, and the heat sink 20 serves as an auxiliary radiator of the antenna 10. The heat sink 20 provided by the present application has a function of transceiving electromagnetic wave signals in addition to a heat dissipation function. By coupling the heat sink 20 to the antenna radiator 11, when the antenna 10 operates, the antenna radiator 11 can be used to transmit and receive electromagnetic wave signals, and the auxiliary radiator can also be used to transmit and receive electromagnetic wave signals, so as to increase the range of the antenna 10 for transmitting and receiving electromagnetic wave signals, increase the frequency band of the antenna 10, further enable the antenna assembly 1 to have a better communication effect, and improve the radiation efficiency (i.e., OTA performance) and the transmission and reception performance of the antenna assembly 1. Moreover, since the heat sink 20 can serve as an auxiliary radiator of the antenna 10, the operating frequency band of the antenna 10 is widened, and therefore, the frequency band coverage with the same width can be achieved without additionally increasing the number of the antennas 10, so that the number of the antennas 10 is reduced in a phase-changing manner, and the design difficulty of the antenna 10 is reduced in a limited assembly space.
Thirdly, when the first surface 21 of the heat sink 20 is connected to the functional component 30, the antenna radiator 11 may be disposed corresponding to the second surface 22 of the heat sink 20, such that the heat sink 20 and the antenna radiator 11 may be horizontally arranged, thereby reducing the thickness of the whole heat sink 20, and fully utilizing the assembly space.
In summary, the antenna assembly 1 provided in the present embodiment can simultaneously improve the heat dissipation performance and the radiation efficiency of the antenna 10 through the heat dissipation member 20, and can also reduce the overall thickness, thereby well solving the above-mentioned technical problems of the present application.
Alternatively, the heat dissipation element 20 may be made of materials including, but not limited to, graphite, metal, and alloys thereof.
Alternatively, the functional components 30 include, but are not limited to, speakers, headphones, front-facing cameras, rear-facing cameras, and the like.
Alternatively, the first surface 21 is used for connecting the function module 50, and it is understood that the first surface 21 may be directly connected to the function module 50, or the first surface 21 may be indirectly connected to the function module 50 through other structural members.
Referring to fig. 4, fig. 4 is a top view of an antenna assembly according to another embodiment of the present disclosure. In this embodiment, the vertical distance from the antenna radiator 11 to the second surface 22 is greater than or equal to 3.8 mm.
As can be seen from the above, the addition of the heat sink 20 can improve both the heat dissipation performance and the radiation efficiency of the antenna 10. But the shape of the heat sink 20 or the distance between the heat sink 20 and the antenna radiator 11 affects the frequency band range of the heat sink 20 as an auxiliary radiator. For example, in the present embodiment, the frequency range of the antenna 10 is 1710-. Therefore, in order to make the frequency band of the heat sink 20 for transceiving electromagnetic wave signals also be concentrated at 1710-.
Optionally, the perpendicular distance of the antenna radiator 11 to the second surface 22 is equal to 3.8 mm.
In addition, in the related art, the heat sink 20 is mounted on the functional component 30, and the vertical distance from the antenna radiator 11 to the second surface 22 is 2.8 mm. However, in this case, the heat sink 20 as an auxiliary heat sink may not only improve the radiation efficiency but also reduce the radiation efficiency, and as for a specific test result, the present application will be described in detail later. Therefore, the present embodiment can also be understood as the second surface 22 of the heat sink 20 is spaced apart from the antenna radiator 111mm or more based on the related art structure.
Referring to fig. 3 and 5 together, fig. 5 is a top view of an antenna assembly according to still another embodiment of the present application. In this embodiment, the heat sink 20 further has a third surface 23, the third surface 23 is opposite to the second surface 22 and is connected to the first surface 21 in a bent manner, and a vertical distance from the antenna radiator 11 to the third surface 23 is less than or equal to 35.5 mm.
In the present embodiment, the heat sink 20 has a third surface 23 in addition to the first surface 21 and the second surface 22. Wherein the third surface 23 is disposed opposite to the second surface 22, i.e. the third surface 23 and the second surface 22 are two different sides disposed opposite to each other of the heat sink 20, and both of the two sides are connected to the lower surface. In addition, the frequency range of the antenna 10 in this embodiment is 1710-2690MHz, but it can also be understood that the frequency ranges of transmitting and receiving electromagnetic wave signals are mainly concentrated in medium-high frequency (MHB) when the antenna 10 of this embodiment operates. Therefore, in order to make the frequency band of the heat sink 20 for transceiving electromagnetic wave signals also be concentrated at 1710-. In addition, the shape of the heat sink 20 may not be a regular geometric shape, but may be various irregular shapes, as shown in fig. 5.
Optionally, the perpendicular distance of the antenna radiator 11 to the third surface 23 is equal to 35.5 mm.
In addition, also in the related art, one mounts the heat sink 20 on the functional component 30, in which case the vertical distance from the antenna radiator 11 to the third surface 23 is 37.5 mm. However, also in this case, the heat sink 20 does not improve the radiation efficiency but reduces the radiation efficiency as an auxiliary radiator. Therefore, the present embodiment can also be understood as the third surface 23 of the heat sink 20 is close to the antenna radiator 112mm or more based on the related art structure.
Referring to fig. 6, fig. 6 is a top view of an antenna assembly according to another embodiment of the present application. In this embodiment, the heat sink 20 further has a third surface 23, a bending surface 25, and a fourth surface 24, where the third surface 23 is disposed opposite to the second surface 22 and connected to the first surface 21 in a bending manner, the bending surface 25 connects the second surface 22 to the fourth surface 24, and the fourth surface 24 is further connected to the third surface 23; the vertical distance from the antenna radiator 11 to the bending surface 25 is greater than or equal to 4.8 mm.
In the present embodiment, the heat sink 20 has a third surface 23, a fourth surface 24, and a bending surface 25 in addition to the first surface 21 and the second surface 22. Here, the first surface 21 can be still understood as a lower surface of the heat sink 20, the second surface 22 and the third surface 23 are two opposite sides, the fourth surface 24 is a sidewall 42 in another direction, and a bending surface 25 is connected between the fourth surface 24 and the second surface 22. The bending surface 25 can also be understood as a transition surface between two adjacent side surfaces. The frequency band of the antenna 10 of this embodiment is 1710-2690MHz, and it can be understood that the frequency band for transmitting and receiving electromagnetic wave signals is mainly concentrated in medium-high frequency (MHB) when the antenna 10 of this embodiment operates. Therefore, in order to make the frequency band of the heat sink 20 for transmitting and receiving electromagnetic wave signals also be concentrated at 1710-.
Optionally, the perpendicular distance of the antenna radiator 11 to the bending plane 25 is equal to 4.8 mm.
In addition, also in the related art, there is a case where the heat sink 20 is mounted on the functional component 30, and the vertical distance from the antenna radiator 11 to the bending surface 25 is 4.8 mm. However, also in this case, the heat sink 20 does not improve the radiation efficiency but reduces the radiation efficiency as an auxiliary radiator. Therefore, the present embodiment can be understood as a structure in which the bent surface 25 of the heat sink 20 is spaced apart from the antenna radiator 112 by more than mm in the related art.
In summary, it can be seen from the above embodiments that, in order to make the frequency band of the heat sink 20 operate at 1710-.
Referring to fig. 7, fig. 7 is a top view of an antenna assembly according to another embodiment of the present application. In the present embodiment, the bent surface 25 protrudes in a direction away from the antenna radiator 11.
In the present embodiment, the bending surface 25 may be protruded in a direction away from the antenna radiator 11, so as to further increase a vertical distance from the antenna radiator 11 to the bending surface 25, thereby further improving the radiation efficiency of the antenna 10. In addition, the bending surface 25 protrudes towards a direction away from the antenna radiator 11, so that the bending surface 25 of the heat dissipation member 20 can be avoided from the screw post in the assembly process of the electronic device 2, thereby facilitating the assembly and disassembly of the heat dissipation member 20, and the application will be described in detail later on as to the specific matching relationship between the bending surface 25 of the heat dissipation member 20 and other components.
In addition, the present application also performed performance tests on various antenna assemblies 1. The present application takes 3 different configurations of the antenna assembly 1, the first being the most existing antenna assembly 1 without the heat sink 20, i.e. with the antenna 10. Second, the antenna assembly 1 with the heat sink 20 added thereto, i.e. the antenna radiator 11, is 2.8mm from the second surface 22 in the vertical direction, as mentioned in the above embodiments. The vertical distance of the antenna radiator 11 to the third surface 23 is 37.5 mm. The vertical distance of the antenna radiator 11 to the bending plane 25 is 4.8 mm. A third antenna component 1 according to the above-mentioned embodiment of the present application is provided, wherein a vertical distance between the antenna radiator 11 and the second surface 22 is greater than or equal to 3.8 mm. The vertical distance of the antenna radiator 11 to the third surface 23 is less than or equal to 35.5 mm. The vertical distance from the antenna radiator 11 to the bending surface 25 is greater than or equal to 4.8 mm. The three antenna assemblies 1 were subjected to performance tests of radiation efficiency (tol.e) at each frequency band of 4G, and the test results are shown in table 1.
Table 1 radiation efficiency of three antenna assemblies in each frequency band
Where Δ 0 is the difference in radiation efficiency between the second antenna component 1 and the first antenna component 1.Δ 1 is the difference between the radiation efficiencies of the third antenna element 1 and the second antenna element 1, and Δ 2 is the difference between the radiation efficiencies of the third antenna element 1 and the first antenna element 1. As can be seen from the above table, compared with the first antenna assembly 1 without the heat dissipation element 20, the heat dissipation element 20 is added in the related art, but the positional relationship between the heat dissipation element 20 and the antenna radiator 11 is not optimal, which does not only improve the radiation efficiency of the antenna 10, but also reduces the radiation efficiency of the antenna 10. In the third antenna assembly 1 provided by the present application, after the heat dissipation member 20 is additionally provided and the distance relationship between the heat dissipation member 20 and the antenna radiator 11 is adjusted, Δ 1 is that the radiation efficiency of the second antenna assembly 1 is significantly improved, which is not the best position relationship, compared to the case where the heat dissipation member 20 is additionally provided. The radiation efficiency of Δ 2, i.e., the radiation efficiency, is also improved compared to the first antenna assembly 1 without the heat sink 20. Therefore, compared with two antenna assembly 1 structures, the antenna assembly 1 provided by the application has the advantages that the radiation efficiency of the antenna 10 is improved, the heat radiation performance of the antenna 10 is also improved, and unexpected technical effects are brought by the above embodiment.
In addition, the present embodiment provides not only the antenna assembly 1 but also the electronic device 2 obtained by using the antenna assembly 1. Referring to fig. 8-9, fig. 8 is a top view of an electronic device according to an embodiment of the present application. Fig. 9 is a schematic cross-sectional view taken along the direction B-B in fig. 8. The present embodiment provides an electronic device 2 comprising a middle frame 40, a functional component 30, and an antenna component 1 as provided in the above embodiments of the present application. The middle frame 40 includes a main body 41 and a sidewall 42 bent and connected from the periphery of the main body 41. The functional element 30 is mounted on the body 41, and the functional element 30 is disposed near the sidewall 42. The antenna radiator 11 is connected to the sidewall 42, or at least a portion of the sidewall 42 forms the antenna radiator 11.
The electronic device 2 provided in the present embodiment includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet Computer, a notebook Computer, a palmtop Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, and a pedometer, and a fixed terminal such as a Digital TV and a desktop Computer. The present application schematically illustrates an electronic device 2 as a mobile phone.
The electronic device 2 provided in this embodiment includes a middle frame 40, and the middle frame 40 is a partial structural member that can fix and support the electronic device 2. The functional component 30 is a general term for a structural member having various functions in the electronic device 2. For example, the functional components 30 include, but are not limited to, speakers, headphones, front-facing cameras, rear-facing cameras, and the like. In the present embodiment, the antenna radiator 11 may be connected to the side wall 42, or at least a portion of the side wall 42 may form the antenna radiator 11. It will also be appreciated that the antenna 10 is integrated on the side wall 42, thereby saving assembly space for the electronic device 2. Alternatively, the antenna radiator 11 is connected to the sidewall 42, which means that the antenna radiator 11 is disposed on the sidewall 42, or the antenna radiator 11 is embedded in the sidewall 42. The present embodiment is illustrated with the antenna radiator 11 fitted in the side wall 42.
In addition, the present embodiment also allows the functional component 30 to be disposed adjacent to the side wall 42. By using the antenna assembly 1 provided by the above embodiment of the present application, after the heat sink 20 is added, the first surface 21 of the heat sink 20 is connected to the functional assembly 30, and the second surface 22 corresponds to the antenna radiator 11 and is spaced from the antenna radiator 11, so that the functional assembly 30 and the antenna 10 can be simultaneously cooled, the radiation efficiency and the transceiving performance of the antenna 10 can be further improved, the design difficulty of the antenna 10 can be reduced, the overall thickness of the electronic device 2 can be further reduced, and the service life and the service performance of the electronic device 2 can be improved.
Referring to fig. 10, fig. 10 is a top view of an electronic device according to still another embodiment of the present application. In this embodiment, the electronic device 2 further includes a functional module 50, where the functional module 50 is disposed on the body 41, and the functional module 50 is close to the functional component 30; a gap is formed between an orthogonal projection of the heat sink 20 on the body 41 and an orthogonal projection of the functional module 50 on the body 41.
In this embodiment, the electronic device 2 may further include a function module 50 in addition to the function component 30. The functional module 50 is also a structural member having various functions in the electronic device 2, and the applicant refers to the functional module 30 for its adaptive designation. Optionally, the functional module 50 includes, but is not limited to, a speaker, an earpiece, a front camera, a rear camera, and the like.
Next, the functional module 50 is close to the functional component 30, and there is a gap between the orthographic projection of the heat sink 20 on the body 41 and the orthographic projection of the functional module 50 on the body 41, that is, the heat sink 20 does not cover the functional module 50, so that the size of the heat sink 20 is shortened in the width direction, thereby further improving the radiation efficiency of the antenna 10, like the various embodiments in the antenna assembly 1. In addition, the difficulty in mounting and dismounting the functional module 50 can be reduced by not covering the functional module 50 with the heat sink 20.
Referring to fig. 11, fig. 11 is a top view of an electronic device according to another embodiment of the present application. In this embodiment, the electronic device 2 further includes a battery 60, the battery 60 is disposed on the body 41, and an orthogonal projection of a part of the heat sink 20 on the body 41 is located in an orthogonal projection of the battery 60 on the body 41.
In this embodiment, the electronic device 2 may further include a battery 60, and the battery 60 may store electric energy therein, so as to provide energy for each of the functional modules 50 and the functional components 30 of the electronic device 2. Wherein the battery 60 is disposed on the body 41, and the orthographic projection of a part of the heat sink 20 on the body 41 is located in the orthographic projection of the battery 60 on the body 41. It is also understood that a part of the heat sink 20 is located on the battery 60, i.e. a part of the heat sink 20 covers the battery 60, or the third surface 23 of the heat sink 20 is located above the battery 60. In this way, the heat dissipation member 20 can not only dissipate heat from the functional component 30 and the antenna 10, but also dissipate heat from the battery 60, thereby further improving the heat dissipation performance of the electronic device 2.
Referring to fig. 12, fig. 12 is a schematic cross-sectional view taken along the direction C-C in fig. 11. In this embodiment, the electronic device 2 further includes an adhesive member 70, the adhesive member 70 adheres the heat sink 20 and the functional component 30, and the adhesive member 70 further adheres the heat sink 20 and the battery 60.
In this embodiment, the heat sink 20 may be indirectly connected to the functional module 30 by adding the adhesive member 70, and the heat sink 20 may be indirectly connected to the battery 60 by using the adhesive member 70. It is also understood that the opposite sides of the adhesive member 70 respectively adhere the heat sink 20 and the functional component 30, and the opposite sides of the adhesive member 70 respectively adhere the heat sink 20 and the battery 60, thereby further improving the adhesion of the heat sink 20 to the components within the electronic device 2.
Referring to fig. 13-14, fig. 13 is a top view of an electronic device according to still another embodiment of the present application. Fig. 14 is a schematic cross-sectional view taken along the direction D-D in fig. 13. In this embodiment, the middle frame 40 further includes a convex pillar 80, the convex pillar 80 is disposed on the body 41, and the convex pillar 80 is sleeved on the heat sink 20.
In the present embodiment, the middle frame 40 may further include a convex pillar 80 besides the body 41 and the side wall 42, and the convex pillar 80 is disposed on the body 41. Alternatively, the protruding pillar 80 and the body 41 may be an integral structure, which is separated and named by the applicant for the sake of clarity. In addition, in the present embodiment, the heat sink 20 may further be provided with the protruding pillar 80, so that the protruding pillar 80 may be used to further fix the heat sink 20, and the protruding pillar 80 may also be used to position the heat sink 20, so that when the heat sink 20 is disassembled and replaced, the distance accuracy between the replaced heat sink 20 and the antenna radiator 11 may be improved. In addition, the protruding column 80 can also fix and assemble the middle frame 40 and the rear cover of the electronic device 2.
Referring to fig. 15, fig. 15 is a schematic cross-sectional view taken along the direction B-B according to another embodiment of the present application. In this embodiment, a side surface of the functional component 30 close to the heat sink 20 has a positioning region N, and an orthogonal projection of the second surface 22 on the functional component 30 is located in the positioning region N.
In the present embodiment, a positioning region N may be further provided on a surface of the functional component 30 on a side close to the heat sink 20. Wherein the positioning region N is used to locate the orthographic projection of the second surface 22 on the functional component 30 within the positioning region N, thereby improving the accuracy of the position between the heat sink 20 and the functional component 30. Since the distance between the functional component 30 and the antenna radiator 11 on the body 41 is constant, it can also be understood as improving the accuracy of the position between the heat sink 20 and the antenna radiator 11. In this way, when the heat sink 20 is removed and replaced, the heat sink 20 may improve the distance accuracy between the replaced heat sink 20 and the antenna radiator 11 by locating the second surface 22 in the locating region N.
Referring to fig. 16, fig. 16 is a schematic cross-sectional view taken along the direction B-B according to another embodiment of the present application. In this embodiment, the functional assembly 30 includes a protective shell 31 and a functional element 32, an accommodating space is provided in the protective shell 31, the functional element 32 is provided in the accommodating space, and the heat sink 20 is connected to the protective shell 31.
In the present embodiment, the functional module 30 specifically includes an external protective case 31 and an internal functional element 32, and the protective case 31 has an accommodating space therein, and the functional element 32 is disposed in the accommodating space, so that the functional element 32 is effectively protected by the protective case 31. The above mentions that the heat sink 20 is connected to the functional component 30, and particularly the heat sink 20 may be connected to the protective case 31 so as not to affect the usability of the functional component 30.
Referring to fig. 17, fig. 17 is a top view of an electronic device according to still another embodiment of the present application. In this embodiment, the middle frame 40 further includes a connecting column 90, the connecting column 90 is disposed on the body 41, and the connecting column 41 is located between the heat sink 20 and the sidewall 42; the bent surface 25 of the heat sink 20 is spaced apart from the connecting post 90.
In this embodiment, the connecting column 90 is often disposed on the body 41 of the middle frame 40. Wherein, the connecting column 90 can be understood as a screw column for being connected with the rear cover in a matching manner in the assembling process, thereby realizing fixation. In other words, the connecting column 90 and the stud 80 can be understood as screw columns, but the applicant has made different nomenclature for distinguishing the two components in different embodiments.
As can be seen from the above, the bending surface 25 of the heat sink 20 is more than 112mm away from the antenna radiator, i.e., the vertical distance from the antenna radiator 11 to the bending surface 25 is equal to 4.8 mm. When assembled on center frame 40, connecting post 41 is located between heat sink 20 and side wall 42. At this time, the bending surface 25 of the heat sink 20 and the connection post 90 may be spaced apart from each other, so that the radiation efficiency of the heat sink 20 as an auxiliary radiator may be further improved, and the heat sink 20 and the connection post 90 may be prevented from colliding with each other during mounting and dismounting, thereby reducing the difficulty in assembling the electronic device 2.
The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person 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 (12)
1. An antenna assembly, comprising:
an antenna comprising an antenna radiator;
the radiating piece is provided with a first surface and a second surface which is connected with the first surface in a bent mode, the first surface is used for connecting a functional component, and the second surface corresponds to the antenna radiating body and is arranged at intervals with the antenna radiating body, so that the radiating piece is coupled with the antenna radiating body and serves as an auxiliary radiating body of the antenna.
2. The antenna assembly of claim 1, wherein a perpendicular distance of the antenna radiator to the second surface is greater than or equal to 3.8 mm.
3. The antenna assembly of claim 1, wherein the heat spreading member further has a third surface disposed opposite the second surface and connected to the first surface by a bend, the antenna radiator being at a vertical distance of less than or equal to 35.5mm from the third surface.
4. The antenna assembly of claim 1, wherein the heat spreading member further has a third surface disposed opposite the second surface and connected to the first surface at a bend, a bent surface connecting the second surface to the fourth surface, and a fourth surface further connecting the third surface; the vertical distance from the antenna radiator to the bending surface is greater than or equal to 4.8 mm.
5. The antenna assembly of claim 4, wherein the angled surface is convex away from the antenna radiator.
6. An electronic device, comprising:
the middle frame comprises a body and a side wall connected with the periphery of the body in a bending way;
the functional component is arranged on the body and is close to the side wall; and
the antenna assembly of any one of claims 1-5, the antenna radiator being connected to the sidewall, or at least a portion of the sidewall forming the antenna radiator.
7. The electronic device of claim 6, further comprising a functional module disposed on the body, wherein the functional module is adjacent to the functional component; a gap is reserved between the orthographic projection of the heat dissipation piece on the body and the orthographic projection of the functional module on the body.
8. The electronic device of claim 6, further comprising a battery disposed on the body, wherein an orthographic projection of a portion of the heat sink on the body is within an orthographic projection of the battery on the body.
9. The electronic device of claim 8, further comprising an adhesive member that bonds the heat sink and the functional component, the adhesive member further bonding the heat sink and the battery.
10. The electronic device of claim 6, wherein the middle frame further comprises a boss, the boss is disposed on the body, and the heat sink is sleeved on the boss.
11. An electronic device as recited in claim 6, wherein a side surface of the functional component adjacent to the heat dissipation element has a positioning region, and an orthographic projection of the second surface on the functional component is located within the positioning region.
12. The electronic device of claim 6, wherein the functional assembly comprises a protective shell and a functional element, an accommodating space is formed in the protective shell, the functional element is arranged in the accommodating space, and the heat dissipation element is connected with the protective shell.
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| CN202110060493.8A CN112909475B (en) | 2021-01-15 | 2021-01-15 | Antenna assembly and electronic equipment |
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Cited By (1)
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| WO2022127175A1 (en) * | 2020-12-15 | 2022-06-23 | 荣耀终端有限公司 | Electronic device |
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