CN206251152U - Mobile terminal - Google Patents

Abstract

The utility model discloses a mobile terminal, which comprises: an external interface body; an antenna assembly, and the antenna assembly includes: a first antenna and a second antenna, wherein the external interface body is located in the antenna clearance area formed by the first antenna and the second antenna; The combined frequency divider is connected to the first antenna and the second antenna respectively, and is connected to the feed source of the mainboard of the mobile terminal; the first filter unit located between the first antenna and the external interface body, the first filter The unit is connected with the first circuit board of the external interface body. The mobile terminal can couple the antenna (such as the GSM antenna) adjacent to the external interface body with the radio frequency isolation on the external interface body by connecting the filter unit in series on the circuit board of the external interface body, so that the external interface body Form a suspension to reduce the influence of the external interface body on the antenna, and prevent the radio frequency signal coupled to the external interface body from antenna radiation from interfering with audio, charging and other signals.

Description

mobile terminal

technical field

The utility model relates to the technical field of mobile terminal manufacturing, in particular to a mobile terminal.

Background technique

With the continuous development of LTE smart mobile terminals, more and more functions are carried by mobile terminals. For example, mobile terminal fingerprint functions such as fingerprint unlocking and fingerprint payment have gradually become a standard configuration. At present, integrating the fingerprint identification on the front of the mobile terminal and the home button of the mobile terminal can improve user experience. However, when the earphone of the mobile terminal is located below the mobile terminal and there is an antenna near the earphone, this layout will cause the earphone to be in the antenna clearance zone, especially when facing an antenna with a large radiation power such as a GSM antenna, audio, antenna, etc. The mutual interference is becoming more and more serious. It is difficult to solve the mutual interference problem under the trend of thinner and lighter mobile terminals such as mobile phones by conventional methods such as ground isolation and routing avoidance. Therefore, how to solve the mutual interference phenomenon between the antenna and the audio in the thinner and lighter mobile terminal has become an urgent problem to be solved.

Contents of the invention

The purpose of this utility model is to at least solve one of the technical problems in the above-mentioned technologies to a certain extent. Therefore, an object of the present invention is to provide a mobile terminal that can effectively reduce the mutual interference between audio and antenna.

In order to achieve the above purpose, the embodiment of the first aspect of the utility model proposes a mobile terminal, including: an external interface body; an antenna assembly, and the antenna assembly includes: a first antenna and a second antenna, wherein the external interface body Located in the antenna clear area formed by the first antenna and the second antenna; the combined frequency divider, the combined frequency divider is connected to the first antenna and the second antenna respectively, and is connected to the feeder of the main board of the mobile terminal The source is connected; the first filter unit is located between the first antenna and the external interface body, and the first filter unit is connected to the first circuit board of the external interface body to reduce the external interface body interference with the antenna assembly.

According to the mobile terminal of the embodiment of the present invention, the external interface body is located in the antenna clear area formed by the first antenna and the second antenna, and the frequency divider is respectively connected with the first antenna and the second antenna, and connected with the main board of the mobile terminal. When the feed source is connected, a first filter unit can be arranged between the first antenna and the external interface body, and the first filter unit is connected to the first tube circuit board of the external interface body, thus, through this external interface The layout of the circuit board of the main body connected in series with the filter unit can not only couple the adjacent antenna (such as the GSM antenna) with a large radiation power to the external interface main body, but also make the external interface main body form a suspension, reducing the external The influence of the interface body on the antenna can filter some parasitic currents that may interfere with audio, charging and other signals to the ground, preventing the radio frequency signal coupled to the external interface body from antenna radiation from interfering with audio, charging, etc.

In addition, the mobile terminal proposed according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the external interface body is an earphone holder.

Wherein, the first antenna is located on one side of the earphone base, and the second antenna is located on the other side of the earphone base.

According to an embodiment of the present utility model, the external interface body is a USB interface body.

Wherein, the second antenna is located on one side of the USB interface body, and the first antenna is located between the USB interface body and the second antenna.

According to an embodiment of the present invention, the first circuit board is located between the first antenna and the external interface body.

According to an embodiment of the present invention, the mobile terminal further includes: a second filter unit located between the second antenna and the earphone socket, the second filter unit and the second circuit of the earphone socket The board is connected to reduce the interference of the earphone socket to the antenna assembly.

In an embodiment of the present invention, the second circuit board is located between the second antenna and the earphone socket.

According to an embodiment of the present invention, the frequency divider is located on the top of the external interface body.

According to an embodiment of the present invention, the first antenna is a low-frequency antenna, and the second antenna is a medium-high frequency antenna.

According to an embodiment of the present invention, the mobile terminal further includes: a fingerprint assembly, wherein the first antenna is located between the fingerprint assembly and the earphone assembly.

According to an embodiment of the present invention, the first filtering unit is connected to the ground of the main board.

According to an embodiment of the present invention, the second filtering unit is connected to the ground of the main board.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows, and part will be apparent from the description which follows, or can be learned by practice of the present invention.

Description of drawings

The above-mentioned and/or additional aspects and advantages of the utility model will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the connection relationship between the first filter unit and the ground and the first pin of the main board according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a mobile terminal according to a specific embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a mobile terminal according to another specific embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a mobile terminal according to yet another specific embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a mobile terminal according to another specific embodiment of the present invention.

Reference signs:

1: mobile terminal; 100: external interface body; 110: headphone holder; 120: USB interface body; 200: antenna assembly; 210: first antenna; 220: second antenna; 230: frequency divider; 300: first Filter unit; 111: first circuit board; 400: second filter unit; 112: second circuit board; 500: fingerprint assembly; 510: fingerprint tray; 10: feed source.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

The mobile terminal according to the embodiment of the present invention will be described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 1 , the mobile terminal 1 of the embodiment of the present invention may include: an external interface body 100 , an antenna assembly 200 and a first filtering unit 300 . Wherein, as shown in FIG. 1 , the antenna assembly 200 may include a first antenna 210, a second antenna 220 and a frequency divider 230, wherein the external interface body 100 may be located in the antenna clearance formed by the first antenna 210 and the second antenna 220 The combined frequency divider 230 can be connected to the first antenna 210 and the second antenna 220 respectively, and connected to the feed source 10 of the mainboard of the mobile terminal 1 .

It should be noted that the mobile terminal includes four sides, such as the four sides of upper, lower, left and right, and the external interface body 100 and the antenna assembly 200 can be respectively located on the same side of the mobile terminal 1, for example, on the same side of the mobile terminal 1. on the top of the mobile terminal, or on the bottom of the mobile terminal. As an example, as shown in FIG. 1, the external interface body 100 and the antenna assembly 200 are located under the mobile terminal 1, wherein the first antenna 210, the second antenna 220 and the external interface body 100 are respectively located under the mobile terminal 1. .

It can be understood that there may be many types of antennas for the first antenna 210 and the second antenna 220 . As an example, the first antenna 210 may be a low-frequency antenna, and the second antenna 220 may be a medium-high frequency antenna. For example, the frequency band covered by the first antenna 210 is 824-960 MHz, and the frequency band covered by the second antenna 220 is 1710-2690 MHz.

In order to save space and facilitate the layout of the antenna device, as an example, the combiner and divider 230 may be located on the top of the external interface body 100 . For example, as shown in Figure 1, the frequency divider 230 is located on the top of the external interface body 100, it can be understood that the frequency divider 230 can be located on the external interface body 100, and the frequency divider 230 is connected to the frequency divider 230. The external interface bodies 100 are adjacent.

That is to say, the first antenna 210 and the second antenna 220 are connected to the feed source 10 on the main board of the mobile terminal 1 through the frequency combiner 230 . The feed source 10 is the primary radiator of the main and secondary reflectors of the excitation surface antenna. It is an important device that determines the electrical characteristics and frequency band of the antenna connected to it. It is used to transfer the radio frequency power from the feeder to the reflector or lens in the form of electromagnetic waves. Radiation, so that it produces a suitable field distribution on the aperture to form the required sharp beam or shaped beam; at the same time, the power leaked from the edge of the reflective surface or lens to the outside is kept as small as possible, in order to achieve the highest possible gain. That is to say, the main function of the feed source 10 is to collect the electromagnetic wave signal received by the antenna connected to the feed source 10, transform it into a signal voltage, supply it to the tuner, and polarize the received electromagnetic wave. For example, taking the signal received by the antenna as an example, the frequency combiner 230 can combine the signals received by the first antenna 210 and the second antenna 220 , and perform electromagnetic wave polarization processing on the combined signal through the feed source 10 .

As shown in Figure 1, the first filter unit 300 can be located between the first antenna 210 and the external interface body 100, and the first filter unit 300 is connected to the first circuit board 111 of the external interface body 100 to reduce the external interface The body 100 interferes with the antenna assembly 200 . Wherein, the first circuit board 111 may be PIN pins such as MIC pin, DET detection pin and GND.

It can be understood that the positional relationship of the first circuit board 111 can be various, for example, it can be located between the external interface body 100 and the frequency divider 230 , and can also be located between the first antenna 210 and the external interface body 100 . In order to avoid interference between the antenna and the external interface, as an example, the first circuit board 111 can be located between the first antenna 210 and the external interface body 100, for example, the first circuit board 111 can be located in the antenna clear area PIN pin.

That is to say, each PIN pin of the external interface body 100 , especially the PIN pin located in the clear area of the antenna, can be connected in series with the first filtering unit 300 nearby. Wherein, the first filtering unit 300 may be connected to the ground of the main board. For example, as shown in FIG. 2, it is a schematic diagram of the connection relationship between the first circuit board 111 and the ground of the main board and a partial schematic diagram of the first filter unit 300. The first filter unit 300 can be composed of a capacitor C1 Composed of an inductor L1, wherein one end of the inductor L1 is connected to the first circuit board 111, the other end of the inductor L1 is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to the ground of the main board.

Thus, by connecting the circuit board located in the antenna clear area in the external interface body to the first filter unit in series, like this, it is possible to couple the adjacent antenna (such as the GSM antenna) with a large radiation power to the radio frequency on the external interface body. The partition makes the external interface body form a suspended body, reduces the influence of the external interface body on the antenna, filters some parasitic currents that may interfere with audio, charging and other signals to the ground, and prevents the antenna from radiating and coupling to the radio frequency signal on the external interface body Interference with audio, charging, etc.

It should be noted that, in an embodiment of the present invention, the external interface body may be an earphone holder. The structure of the mobile terminal when the external interface body is an earphone holder will be described in detail below with reference to FIGS. 3 to 5 .

Fig. 3 is a schematic structural diagram of a mobile terminal according to a specific embodiment of the present invention. As shown in FIG. 3 , the mobile terminal 1 may include: an earphone socket 110 , an antenna assembly 200 and a first filtering unit 300 . Wherein, as shown in FIG. 3 , the antenna assembly 200 may include a first antenna 210, a second antenna 220 and a frequency divider 230, and the earphone socket 110 is located in the antenna clear area formed by the first antenna 210 and the second antenna 220, wherein , the first antenna 210 is located on one side of the earphone holder 110, and the second antenna 220 is located on the other side of the earphone holder 110; 1 connected to the feed 10 of the motherboard.

In order to save space and facilitate the layout of the antenna device, as an example, the combiner and divider 230 may be located on the top of the earphone holder 110 .

It can be understood that there may be many types of antennas for the first antenna 210 and the second antenna 220 . As an example, the first antenna 210 may be a low-frequency antenna, and the second antenna 220 may be a medium-high frequency antenna. For example, the frequency band covered by the first antenna 210 is 824-960 MHz, and the frequency band covered by the second antenna 220 is 1710-2690 MHz.

As shown in Fig. 3, the first filter unit 300 can be located between the first antenna 210 and the earphone base 110, and the first filter unit 300 is connected to the first circuit board 111 of the earphone base 110, so as to reduce the pairing of the earphone base 110. interference with the antenna assembly 200 .

In order to further effectively avoid the mutual interference between the antenna and the audio, further, in an embodiment of the present utility model, as shown in FIG. 4 , the mobile terminal 1 may further include: a second filtering unit 400, the first The second filter unit 400 can be located between the second antenna 220 and the earphone base 110 , and the second filter unit 400 is connected to the second circuit board 112 of the earphone base 110 to reduce the interference of the earphone base 110 to the antenna assembly 200 . Wherein, the second circuit board 112 can be located between the second antenna 220 and the earphone socket 110, and the second filtering unit 400 can be connected to the ground of the main board. In addition, the second circuit board 112 may be PIN pins such as MIC pin, DET detection pin, and GND.

As an example, the second circuit board 112 may be located between the second antenna 220 and the earphone socket 110, for example, the second circuit board 112 may be a PIN pin located in the clear area of the antenna.

It can be understood that when multiple circuit boards (i.e. PIN pins) of the earphone holder 110 fall into the antenna clearance area, a corresponding number of filter units can be set correspondingly according to the number of PIN pins falling into the antenna clearance area. The position and structural relationship are similar to those of the first filtering unit 300 and the second filtering unit 400 described above, only the connected objects are different.

In order to improve usability and feasibility, and improve the functions of the mobile terminal, as an example, as shown in FIG. Between 110. Wherein, the fingerprint component 500 can be a front fingerprint module of the mobile terminal 1 .

It can be understood that the fingerprint component 500 can be located directly under the front of the mobile terminal 1 . Wherein, the fingerprint component 500 can be used to collect and identify user fingerprints. Thus, by identifying the user's fingerprint through the fingerprint component, various functions (such as functions such as fingerprint unlocking and fingerprint payment) can be realized through the user's fingerprint.

Thus, the first antenna is located on one side of the earphone holder, and the second antenna is located on the other side of the earphone holder, and the frequency divider is connected to the first antenna and the second antenna respectively, and is connected to the feed source of the mainboard of the mobile terminal , and by arranging a first filter unit between the first antenna and the earphone base, the first filter unit is connected to the first circuit board of the earphone base, thus, through this circuit board (such as PIN pin) in the earphone base The layout of the nearest cascaded filter unit can not only couple the adjacent antenna (such as the GSM antenna) with high radiation power to the earphone socket, but also make the earphone socket form a suspended body, reducing the influence of the earphone socket on the antenna. Part of the parasitic current that may interfere with the audio can be filtered to the ground, preventing the radio frequency signal coupled to the earphone socket from the antenna radiation from interfering with the audio.

It should be noted that, in one embodiment of the present invention, the external interface body may be a USB interface body. The structure of the mobile terminal when the external interface body is a USB interface body will be described in detail below with reference to FIG. 6 .

Fig. 6 is a schematic structural diagram of a mobile terminal according to another specific embodiment of the present invention. As shown in FIG. 6 , the mobile terminal 1 may include: a USB interface body 120 , an antenna assembly 200 and a first filtering unit 300 . Wherein, as shown in FIG. 6 , the antenna assembly 200 may include a first antenna 210, a second antenna 220 and a frequency divider 230, and the USB interface body 120 is located in the antenna clearance area formed by the first antenna 210 and the second antenna 220, Wherein, the second antenna 220 is located on one side of the USB interface body 120, and the first antenna 210 is located between the USB interface body 120 and the second antenna 220; the frequency divider 230 can be connected to the first antenna 210 and the second antenna 220 respectively , and connected to the feed 10 of the motherboard of the mobile terminal 1 .

In order to save space and facilitate the layout of the antenna device, as an example, the combiner and divider 230 may be located on the top of the USB interface body 120 .

It can be understood that there may be many types of antennas for the first antenna 210 and the second antenna 220 . As an example, the first antenna 210 may be a low-frequency antenna, and the second antenna 220 may be a medium-high frequency antenna. For example, the frequency band covered by the first antenna 210 is 824-960 MHz, and the frequency band covered by the second antenna 220 is 1710-2690 MHz.

As shown in Figure 6, the first filtering unit 300 can be located between the first antenna 210 and the USB interface body 120, and the first filtering unit 300 is connected to the first circuit board 111 of the USB interface body 120 to reduce the size of the USB interface. The body 120 interferes with the antenna assembly 200 . Wherein, the first circuit board 111 may be PIN pins such as MIC pin, DET detection pin and GND.

That is to say, the first filter unit 300 can be connected in series to each PIN pin of the USB interface body 120 , especially the PIN pin located in the clear area of the antenna. Wherein, the first filtering unit 300 may be connected to the ground of the main board. For example, as shown in FIG. 2 , it is a schematic diagram of the connection relationship between the first circuit board 111 and the ground of the main board and a partial schematic diagram of the first filter unit 300. The first filter unit 300 can be composed of a capacitor C It is composed of an inductor L, wherein one end of the inductor L is connected to the first circuit board 111 , the other end of the inductor L is connected to one end of the capacitor C, and the other end of the capacitor C is connected to the ground of the main board.

As an example, the mobile terminal 1 further includes a fingerprint component, and the USB interface body 120 can be located on the fingerprint tray 510 in the fingerprint component.

Thus, by connecting the first filter unit in series with the circuit board located in the antenna clearance area in the USB interface body, like this, it is possible to couple the adjacent antenna (such as the GSM antenna) with a large radiation power to the radio frequency on the USB interface body. Partition, so that the USB interface body forms a suspended body, reducing the impact of the USB interface body on the antenna, filtering some of the parasitic current that may interfere with the charging signal to the ground, and preventing the antenna from radiating and coupling to the RF signal on the USB interface body. Interference with data transmission, etc.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary if the first feature is "on" or "under" the second feature indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (13)

1. a kind of mobile terminal, it is characterised in that including：

External interface body；

Antenna module, the antenna module includes：

First antenna and the second antenna, wherein, the external interface body is formed positioned at the first antenna and the second antenna Antenna headroom area；

Close frequency divider, the conjunction frequency divider is connected with the first antenna and the second antenna respectively, and with the mobile terminal The feed of mainboard is connected；

The first filter unit between the first antenna and the external interface body, first filter unit and institute The first circuit board for stating external interface body is connected, to reduce interference of the external interface body to the antenna module.

2. mobile terminal as claimed in claim 1, it is characterised in that the external interface body is earphone base.

3. mobile terminal as claimed in claim 2, it is characterised in that wherein, the first antenna is located at the earphone base Side, second antenna is located at the opposite side of the earphone base.

4. mobile terminal as claimed in claim 1, it is characterised in that the external interface body is USB interface body.

5. mobile terminal as claimed in claim 4, it is characterised in that wherein, second antenna is located at the USB interface sheet The side of body, the first antenna is located between the USB interface body and second antenna.

6. the mobile terminal as described in claim 3 or 5, it is characterised in that the first circuit board is located at the first antenna And the external interface body between.

7. mobile terminal as claimed in claim 3, it is characterised in that also include：

The second filter unit between second antenna and the earphone base, second filter unit and the earphone The second circuit board of seat is connected, to reduce interference of the earphone base to the antenna module.

8. mobile terminal as claimed in claim 7, it is characterised in that the second circuit board is located at second antenna and institute State between earphone base.

9. mobile terminal as claimed in claim 1, it is characterised in that the conjunction frequency divider is located at the external interface body Top.

10. mobile terminal as claimed in claim 1, it is characterised in that the first antenna is low-frequency antenna, described second day Line is medium-high frequency antenna.

11. mobile terminals as claimed in claim 3, it is characterised in that also include：

Fingerprint component, wherein, the first antenna is located between the fingerprint component and the headset assembly.

12. mobile terminals as claimed in claim 1, it is characterised in that the ground phase of first filter unit and the mainboard Even.

13. mobile terminals as claimed in claim 7, it is characterised in that the ground phase of second filter unit and the mainboard Even.