WO2017198134A1

WO2017198134A1 - Housing, antenna apparatus, and mobile terminal

Info

Publication number: WO2017198134A1
Application number: PCT/CN2017/084446
Authority: WO
Inventors: 胡莎莎; 赵宁; 唐海军; 王新宝; 梁天平
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2016-05-16
Filing date: 2017-05-16
Publication date: 2017-11-23

Abstract

Disclosed in the present invention are a housing, an antenna apparatus, and a mobile terminal, the housing being provided with a microseam band and two metal parts separated by the microseam band, the inner side of the housing also being provided with a metal piece fixedly connecting the two metal parts, the metal piece conducting between the two metal parts and covering part of the microseam band, a metal strip being electrically isolated from the metal piece and the metal parts. The microseam band partitioning the housing being arranged on the housing facilitates machining of the microseam band; using the metal piece to conduct between the two metal parts and to cover part of the microseam band causes the part not covered by the microseam band to form a clearance area, such that the housing satisfies demands for antenna radiation, appearance, and structural performance and is simple to machine; the housing structure is simple, reducing production costs, and production efficiency is high.

Description

Housing, antenna device and mobile terminal

Technical field

The present invention relates to the field of communications, and in particular, to a housing, an antenna device, and a mobile terminal.

Background technique

At present, a gap is usually provided in the mobile phone case as a clearance area for the antenna signal radiation in the mobile phone to improve the antenna radiation performance of the mobile phone. Due to the high requirements on the appearance and structural performance of the mobile phone casing in the market, the seaming on the mobile phone casing is bound to reduce the appearance performance and structural performance of the casing. Therefore, the opening of the mobile phone casing needs to ensure the appearance performance and structural performance of the casing, and also needs to ensure the radiation performance of the antenna signal. Therefore, the difficulty of slitting on the mobile phone casing is increased, the production cost of the mobile phone casing is increased, and the production is increased. low efficiency.

Summary of the invention

The invention provides a housing, an antenna device and a mobile terminal which can produce high efficiency.

The present invention provides a housing, wherein the housing is provided with a microslit strip and at least two metal portions separated by the micro slit strip; the micro slit strip is filled with a plurality of metal strips spaced apart from each other Forming an insulating material between two adjacent metal strips, the metal strip is electrically isolated from the metal portion; a spacing between adjacent two metal strips in the micro slit strip is 0.06 mm to 0.3 Mm, the metal strip has a width of 0.5 mm to 1 mm.

The present invention also provides an antenna device, wherein the antenna device includes the housing of any of the above, the antenna device further includes an antenna feed module, and the antenna feed module is fixed in the housing.

The present invention also provides a mobile terminal, wherein the mobile terminal comprises the antenna device described above.

The housing, the antenna device and the mobile terminal of the present invention facilitate the processing of the microslit tape by providing a micro slit tape that blocks the casing on the casing; using the metal sheet and the two The metal portion is electrically conductive and covers a portion of the microslit strip such that the uncovered portion of the micro slit strip constitutes a clearance area, thereby allowing the housing to satisfy simultaneous radiation, appearance and structural properties of the antenna. Simple, the housing structure is simple, the production cost is reduced, and the production efficiency is high.

DRAWINGS

In order to more clearly illustrate the technical solution of the present invention, the following needs to be used in the embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The drawings in the following description are merely illustrative of the embodiments of the present invention, and may be obtained by those skilled in the art without the Other drawings.

Figure 1 is a schematic view of a housing provided by the present invention;

2 is a schematic diagram of an antenna device provided by the present invention;

3 is a schematic diagram of a main board and an antenna feed module of the antenna device of FIG. 2;

4 is a schematic view of a front case panel of the antenna device of FIG. 2;

FIG. 5 is a schematic diagram of a mobile terminal provided by the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the present invention provides a housing 100 provided with a microslit strip 10 and two metal parts 20 separated by the micro slit strip 10 . . The inner side of the housing 100 is further provided with a metal piece 30 fixedly connecting the two metal parts 20. The metal piece 30 is electrically connected to the two metal portions 20 and covers a part of the micro slit tape 10. The microslit strip 10 is composed of a plurality of metal strips 11 spaced apart from each other and an insulating material 12 filled between the strips of the adjacent two of the strips 11. The metal strip 11 is electrically isolated from the metal piece 30 and the metal portion 20. It can be understood that the housing 100 can be applied to a terminal, which can be a mobile phone, a tablet computer or a notebook computer or the like.

The processing of the microslit tape 10 is facilitated by providing the microslit tape 10 that blocks the casing 100 on the casing 100; the metal piece 30 is electrically connected to the two metal portions 20, Covering a portion of the microslit tape 10 such that the uncovered portion of the microslit tape 10 constitutes a clearance area, thereby making the casing 100 satisfy the radiation performance, appearance performance and structural performance of the antenna while being processed. The housing 100 has a simple structure, reduces production costs, and has high production efficiency.

In this embodiment, the housing 100 may be a terminal housing, or may be a terminal front cover or a terminal back cover. The housing 100 is made of a metal material. The housing 100 can carry the internal motherboard and other functional components of the terminal and protect the motherboard and functional components. The microslit tape 10 may be formed by laser cutting. The microslit tape 10 may be cut in from the edge of the housing 100 and completely The housing 100 is severed so that the microslit tape 10 is easily processed. Specifically, the microslit tape 10 may extend in a direction parallel to the length or width of the casing 100. In the present embodiment, the microslit tape 10 extends in a direction parallel to the width direction of the casing 100. The longitudinal direction of the metal strip 11 is disposed in the same direction as the longitudinal direction of the microslit strip 10. A plurality of the metal strips 11 may be arranged equidistantly. The insulating material 12 can be filled using an injection process. The insulating material 12 provides an insulating environment for the metal strip 11 and allows the metal strip 11 to be secured within the microslit strip 10. The metal portion 20 may be a metal plate member separated by the micro slit tape 10. The metal sheet 30 may be a rectangular plate member. The two ends of the metal piece 30 in the longitudinal direction may be fixedly connected to the two metal portions 20 by welding, and may be electrically connected to the two metal portions 20. The metal sheet 30 covers a portion of the microslit tape 10 in the width direction. The metal piece 30 simultaneously fixes the two metal parts 20, so that the housing 100 is structurally stable and can withstand large external stresses. In other embodiments, the metal piece 30 may be fixedly connected to the metal portion 20 by means of bonding or screwing, and electrically connected to the metal portion 20.

Further, a distance between two adjacent metal strips 11 in the microslit tape 10 is 0.06 mm to 0.3 mm, and the width of the metal strip 11 is 0.5 mm to 1 mm; An open end of the edge of the casing 100, the distance from the metal piece 30 is 60 mm to 80 mm, and the width of the microslit tape 10 is 1 mm to 4 mm. In another embodiment, the spacing between two adjacent metal strips 11 in the microslit tape 10 is 0.06 mm or 0.3 mm, and the width of the metal strip 11 is 0.5 mm or 1 mm; The distance from the metal piece 30 is 60 mm or 80 mm, and the microslit tape 10 has a width of 1 mm or 4 mm. In the embodiment, the micro slit tape 10 includes a first open end 101 and a second open end 102 respectively located at opposite sides of the housing 100. The metal sheet 30 may cover the position of the microslit strip 10 between the first open end 101 and the second opening 102, or may cover the micro slit strip 10 at the first open end 101 or The position of the second open end 102. By setting the length of the microslit tape 10 within a preferred range, the length of the microslit tape 10 is matched to the radiation wavelength of the antenna in the terminal, thereby improving the antenna signal radiation performance. The spacing between the two adjacent metal strips 11 is smaller than the width of the metal strips 11, so that the micro slits between the two adjacent metal strips 11 are not visible, thereby improving the appearance of the housing 100. performance.

Further, in a preferred embodiment, the metal piece 30 covers the two openings of the micro slit tape 10 The position between the ends, that is, the metal sheet 30 covers the position of the microslit strip 10 between the first open end 101 to the second opening 102. Specifically, the metal sheet 30 includes a first side 31 and a second side 32 that are oppositely disposed and simultaneously span the microslit strip 10. The micro slit tape 10 forms a first clearance area 10b at a position of the first open end 101 to the first side edge 31, and the micro slit tape 10 is at the second open end 102 to the second The position of the side 32 forms a second clearance area 10c. The microslit strip 10 is divided into two differently shaped clearance areas by the metal sheet 30, so that the housing 100 can penetrate antenna signals of different wavelengths to improve antenna radiation performance. In other embodiments, the metal piece 30 may also cover the position of the micro slit tape 10 at the first open end 101 or the second opening 102 to form a micro slit tape 10 on the micro slit tape 10 . Clearance area.

Further, the housing 100 is provided with a plurality of the micro slit tapes 10 and a plurality of the metal sheets 30, and each of the metal sheets 30 correspondingly covers a part of each of the micro slit strips 10, thereby The area of the clearance area on the housing 100 is increased to further improve the antenna signal radiation performance.

The present invention also provides an antenna device 200. The antenna device includes the housing 100. The antenna device 200 further includes a main board 40 and an antenna feeding module 50. The main board 40 is fixed to the inner side of the housing 100. The main board 40 is provided with a slot 41 and a feeding point 42 at the edge of the slot 41. The antenna feeding module 50 is electrically connected to the feeding point 42.

In this embodiment, the main board 40 may be bonded or screwed or snap-fitted to the housing 100. The main board 40 is located inside the housing 100. The antenna feed module 50 may be a circuit module formed on the main board 40. The slot 41 is opened on the main board 40, and the antenna feeding module 50 supplies a feeding signal to the main board 40 via the feeding point 42, so that the main board 40 constitutes a slot antenna. In other embodiments, the number of the motherboards 40 may be multiple, and the antenna feeding modules 50 may also be respectively disposed on another circuit board. The motherboard 40 may also be independent of the antenna feeding module. 50. The main board 40 and the antenna feeding module 50 are electrically connected via a cable.

Further, a front projection area of the uncovered portion of the microslit tape 10 on the main board 40 coincides with the slit 41. In the present embodiment, the slit 41 divides the main board 40 into two radiating regions 40a and a connecting region 40b connected between the two radiating regions 40a. The connection region 40b is opposed to the metal piece 30. The slit 41 is opposed to the clearance area on the casing 100, so that the signal radiation performance of the antenna device 100 is improved.

In a preferred embodiment, the main board 40 is provided with a first slit 41a and a second slit 41b, and the first slit 41a and the second slit 41b respectively form two uncovered portions on the micro slit tape 10. In contrast, the antenna feed module 50 includes a first feed module 51 and a second feed module 52. The first feed module 51 and the second feed module 52 are electrically connected to each other. The first feed point 42a of the first slit 41a and the second feed point 42b of the second slit 41b are described. Specifically, the first slit 41a is opposite to the first clearance area 10b, and the second slit 41b is opposite to the second clearance area 10c. The first power feeding module 51 can be a conventional communication feeding module, so that the antenna device 200 can send and receive regular communication signals. The second feed module 52 can be a WIFI or/and a GPS feed module, such that the antenna device 200 can transmit and receive WIFI signals or/and GPS signals.

Specifically, the first feeding module 51 includes a first matching circuit 511 and a first RF circuit 512 which are sequentially connected in series to the first feeding point 42a. The second feeding module includes a second matching circuit 521 and a second RF circuit 522 which are sequentially connected in series to the second feeding point 42b. The first power feeding module 51 may further include a frequency modulation circuit 513 electrically connected between the first feeding point 42a and the ground.

Further, the antenna device 200 further includes a first electrical conductor 61 fixed between the metal portion 20 and the main board 40, and the first electric conductor 61 and the metal portion 20 and the main board 40 are electrically connection.

Specifically, the housing 100 includes a terminal back cover 70, and the micro slit tape 10 is opened on the terminal back cover 70. The terminal back cover 70 is a radiator, and the main board 40 of the antenna device 200 is connected to the terminal back cover 70 via the first electric conductor 61. In turn, the terminal back cover 70 receives a feed signal, and the terminal back cover 70 can also radiate an electromagnetic signal. Since the terminal back cover 70 is electrically connected to the main board 40 via the first electric conductor 61, electromagnetic signals of different resonance frequencies can be radiated, so that the frequency band of the antenna device 200 is increased, that is, the antenna device is increased. 200 bandwidth. Specifically, the number of the first electrical conductors 61 may be plural, and the plurality of the first electrical conductors 61 may be arranged equidistant along the edge of the slit 41.

More specifically, the antenna device 200 further includes a front case panel 80 that is covered with the terminal back cover 70, and the main board 40 is located between the terminal back cover 70 and the front case panel 80. The front cover panel 80 is a metal plate located between the display module (including the display panel and/or the touch panel) and the main board 40.

As shown in FIG. 4, a third slot 81 and a fourth slot 82 are defined in the front cover panel 80, and the orthographic projection area of the third slot 81 and the fourth slot 82 on the main board 40 and the first A gap 41 and a second slot 42 respectively overlap; the antenna device 200 further includes a second electrical conductor 62, and the metal portion 20 and the main board 40 are connected by the first electrical conductor 61 and also pass through the second electrical conductor 62 and the front The shell panel 80 is connected. The front case panel 80 serves as a ground, and the main board 40 is electrically connected to the front case panel 80 via the second ground conductor 62, thereby further improving the radiation performance of the antenna device 200.

Referring to FIG. 5, the present invention further provides a mobile terminal 300, which includes the antenna device 200. It can be understood that the mobile terminal 200 can be a mobile phone, a tablet computer or a notebook computer.

The housing, the antenna device and the mobile terminal of the present invention are provided with a micro slit tape that blocks the housing through the housing, thereby facilitating processing of the micro slit tape; using the metal sheet and the two metal materials The portion is electrically conductive and covers a portion of the microslit strip such that the uncovered portion of the micro slit strip constitutes a clearance area, thereby allowing the housing to satisfy antenna radiation performance, appearance performance and structural performance while being simple to process Furthermore, the housing has a simple structure, reduces production costs, and has high production efficiency.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A housing, characterized in that the housing is provided with a microslit strip and at least two metal portions separated by the micro slit strip; the micro slit strip is filled with a plurality of metal strips spaced apart from each other An insulating material between two adjacent metal strips, the metal strip is electrically isolated from the metal portion; a spacing between two adjacent metal strips in the micro slit strip is 0.06 mm to 0.3 mm The metal strip has a width of 0.5 mm to 1 mm.
The housing of claim 1 wherein said microslit strip has a width of 1 mm or 4 mm.
The housing according to claim 2, wherein the inner side of the housing is further provided with a metal piece fixedly connecting two adjacent metal parts, and the metal piece is electrically connected to the two metal parts. And covering a portion of the microslit tape.
The housing of claim 3 wherein said microslit strip has an open end at an edge of said housing.
The housing according to claim 4, wherein the open end is spaced from the metal piece by a distance of 60 mm to 80 mm.
The housing according to claim 5, wherein said metal sheet covers a position between the open ends of said microslit strip.
The housing according to claim 5, wherein the housing is provided with a plurality of the micro slit strips and a plurality of the metal sheets, each of the metal sheets correspondingly covering each of the micro slit strips a part of.
The housing according to claim 5, wherein said metal piece is welded to said two metal portions.
A casing according to any one of claims 1 to 8, wherein a plurality of said metal strips are arranged equidistantly.
The casing according to any one of claims 1 to 8, wherein the microslit tape extends in parallel with the length or width direction of the casing.
An antenna device, comprising: the housing according to any one of claims 1 to 10, the antenna device further comprising an antenna feeding module, wherein the antenna feeding module is fixed to the housing in vivo.
The antenna device according to claim 11, wherein said antenna device is further included The main board is provided with a feeding point, and the antenna feeding module is electrically connected to the feeding point.
The antenna device according to claim 12, wherein said main board is provided with a slit, and said feeding point is located at an edge of said slit.
The antenna device according to claim 13, wherein an orthographic portion of said microslit strip uncovered portion on said main board coincides with said slit.
The antenna device according to claim 14, wherein the metal sheet covers a position between the two open ends of the microslit strip, and the slit provided on the main board is divided into a first slit and a second slit. The first slot and the second slot are respectively opposite to two uncovered portions of the microslit strip, and the antenna feeding module includes a first feeding module and a second feeding module, wherein the A feed module and the second feed module are electrically connected to a feed point of the first slot and a feed point of the second slot, respectively.
The antenna device according to claim 12, wherein the antenna device further comprises a first electrical conductor fixed between the metal portion and the main board, the first electrical conductor and the metal portion The motherboard is electrically connected.
The antenna device according to claim 16, wherein the housing comprises a terminal back cover, the micro slit tape is opened on the rear cover of the terminal, the rear cover of the terminal serves as a radiator, and the main board of the antenna device The first electrical conductor is connected to the terminal back cover.
The antenna device according to claim 17, further comprising a front cover panel, the front cover panel is covered with the terminal back cover, and the main board is located at the terminal back cover and the front cover panel between.
The antenna device according to claim 18, wherein the front shell panel is provided with a third slit and a fourth slit, and the third slit and the fourth slit are on the front projection area of the main board and the first slit And the second slot is respectively overlapped; the antenna device further includes a second electrical conductor, and the metal portion and the main board are connected to the front shell panel through the second electrical conductor after being connected by the first electrical conductor.
A mobile terminal, comprising the antenna device according to any one of claims 11 to 19.