CN219761066U

CN219761066U - Mobile equipment

Info

Publication number: CN219761066U
Application number: CN202223429545.3U
Authority: CN
Inventors: 刘梦文; 周同同
Original assignee: Guangdong Yinuo Communication Co Ltd
Current assignee: Guangdong Yinuo Communication Co Ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-09-26
Anticipated expiration: 2032-12-15

Abstract

The utility model provides mobile equipment, which comprises a shell, a main board, a radiator, a feed point and a grounding point, wherein the main board is arranged on the shell; keys are arranged on the outer side face of the shell in a protruding mode; the main board is arranged in the shell, and the radiator is arranged in the shell and corresponds to the key; the main board and the radiator are connected with the feed point, and the main board and the radiator are connected with the grounding point. According to the utility model, the radiator matched with the keys on the outer side surface of the shell in the mobile device is used as the radiator for supporting wifi, so that the number of antennas in the shell is reduced, and the working efficiency of 2.4G wifi and 5G wifi is ensured.

Description

Mobile equipment

Technical Field

The utility model belongs to the technical field of mobile equipment, and particularly relates to mobile equipment.

Background

With the rapid development of wireless communication technology, a terminal electronic product communication network is upgraded from 4G to 5G, sub6 frequency bands are currently used for domestic 5G communication, and 5G communication requires an antenna for realizing a communication function to have a frequency band with a large bandwidth and a multiple-input multiple-output (MIMO) antenna system so as to realize high-speed data transmission. The MIMO antennas required by Sub6 frequency bands are many, and other requirements on smart devices, such as WiFi, GPS, etc., basically all require more than 4 antennas to support, which makes at least 12 antennas in a 5G smart electronic device, and smart phone screens on the market develop towards narrow frames and light weight, smart phones are thinner and thinner, the number of cameras is increased, the relative antenna headroom in the smart phones is smaller, performance and isolation are required to be considered in antenna layout, antenna design difficulty is increased, and cost is also high. Because the MIMO of Sub6 frequency band in current smart mobile phone is full with the antenna mounting area of smart mobile phone backshell basically, and in order to improve user experience, satisfy demand such as instant messaging software, network telephone, the wifi performance of smart mobile phone basically requires wifi MINO to support, consequently the design position of wifi MIMO antenna becomes a big difficulty.

The WiFi antenna design of current smart mobile phone sets up the support basically in the smart mobile phone, erect 2.4G WiFi antenna on the support, perhaps set up the WiFi antenna in the backshell inboard, with GPS & wiFi & BT trinity antenna setting at the cell-phone center, satisfy 2.4G WiFi function, the WiFi MIMO antenna of a support 5G WiFi of additional setting again, for example use Sub6G N78 trinity antenna, or set up the WiFi MIMO antenna in the camera decoration, such design can lead to the increase of radio frequency link device, reduce antenna efficiency, still can lead to the antenna isolation relatively poor, close with the metal element signal frequency of camera, produce desense problem, receive the sensitivity and worsen. Therefore, although the existing design requires to cover 5G WiFi and 2.4Gwifi, in the actual design, the environment of the design position of the WiFi MIMO antenna is basically poor, and the WiFi2.4G and the 5G always have a low performance and a narrow bandwidth.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art, and provides mobile equipment, wherein a radiator matched with a key on the outer side surface of a shell in the mobile equipment is used as a radiator for supporting wifi, so that the number of antennas in the shell is reduced, and the working efficiency of 2.4G wifi and 5G wifi is ensured.

The utility model is realized by the following technical scheme:

a mobile device comprises a shell, a main board, a radiator, a feed point and a grounding point; keys are arranged on the outer side face of the shell in a protruding mode; the main board is arranged in the shell, and the radiator is arranged in the shell and corresponds to the key; the main board and the radiator are connected with the feed point, and the main board and the radiator are connected with the grounding point.

The utility model provides mobile equipment, which utilizes a radiator matched with keys on the outer side surface of a shell in the mobile equipment as a radiator for supporting wifi, reduces the number of antennas in the shell, does not need to be additionally provided with 5G wifi antennas independently, and meanwhile, the radiator is far away from a main board and other positions in the shell, so that the interference between the radiator and other devices in the shell is reduced, and the working efficiency of 2.4G wifi and 5G wifi is ensured.

Further, the length of the radiator is not smaller than one fourth of the 2.4G wifi working wavelength. This is a concrete implementation, sets up the radiator of suitable length to utilize the frequency multiplication principle, produce two kinds of resonances, satisfy 2.4G wifi and 5G wifi's operating wavelength, realize wifi dual-frenquency and cover.

Further, the mobile device further comprises a feed matching circuit, and the feed point and the main board are respectively communicated with the feed matching circuit. And the feed matching circuit is arranged to communicate the feed point with the main board, so that the feed point is matched with the impedance of the main board, and the antenna benefit is improved.

Further, the mobile device antenna is further provided with a radio frequency switch, and the grounding point and the main board are electrically connected with the radio frequency switch. The radio frequency switch is used for adjusting the frequency of the radiator.

Further, the shell comprises a front shell, a rear shell and a middle frame; the front shell and the rear shell are mutually fixed and enclosed to form a containing space, and the middle frame is fixed in the containing space; the main board is arranged on the middle frame; the radiator is arranged at the edge of the middle frame. In one embodiment, the radiator is disposed at the edge of the middle frame, so as to avoid occupying the main board and avoiding interference caused by the close position to other devices in the shell.

Further, the radiator comprises a radiating strip and an extension section; the extension section is vertically fixed on the radiation strip and extends to the main board; the key is arranged on the outer side face of the front shell or the rear shell, the position of the side edge of the middle frame corresponding to the key is provided with a containing through groove, and the radiation strip is arranged in the containing through groove. In a specific implementation mode, the radiating strips are vertically connected with the extension sections, the radiating strips are connected with the feed point and the grounding point to form an IFA loop, the resonance point is adjusted by utilizing the frequency multiplication principle, the working wavelengths of 2.4G wifi and 5G wifi are met, and wifi double-frequency coverage is realized; the radiation strip is arranged in the containing through groove at the side edge of the middle frame and is isolated from other devices in the shell, so that interference is avoided.

Further, a communication port is formed in the side wall of the accommodating through groove, and the communication port faces the main board; one end of the extension section is fixed on the radiation strip, and the other end of the extension section extends from the communication port to the main board and is connected with the main board; the feed point and the grounding point are both positioned at one end of the extension section far away from the communication port; the radiating strips and the extension sections are all sheet-shaped. This is a specific implementation, the intercommunication mouth has been seted up to the accommodation through-groove, makes the extension can extend to the mainboard from the radiation strip straightly, need not to set up the shape that the structure influences the radiator.

Further, the middle frame is a plastic part. The plastic part is selected as the middle frame, so that the interference to the radiator is avoided, and the sensitivity of the antenna is reduced.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

Fig. 1 is a schematic diagram of a mobile device of embodiment 1.

Fig. 2 is a schematic diagram of the feed matching circuit and the radio frequency switch of embodiment 1.

Fig. 3 is a partial enlarged view of fig. 2.

Fig. 4 is an S11 parameter diagram of the mobile device of embodiment 1.

Fig. 5 is a graph of efficiency versus frequency for the mobile device of example 1.

Detailed Description

Embodiments of the present utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not limiting of embodiments of the utility model. It should be further noted that, for convenience of description, only some, but not all of the structures related to the embodiments of the present utility model are shown in the drawings.

Furthermore, the terms first, second, third and the like in the description and in the claims, are used for descriptive purposes only and are not necessarily for describing relative importance or to indicate the number of features indicated or the order or timing of the description. The terms are interchangeable where appropriate. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Similarly, the terms "fixed," "connected," and "connected" are used throughout the description and claims and should not be construed as limited to a direct connection. Thus, the expression "device a is connected to device B" should not be limited to devices or systems in which device a is directly connected to device B, meaning that there is a path between device a and device B, which may be a path that includes other devices or tools.

Example 1

The present embodiment 1 provides a mobile device, fig. 1 is a schematic diagram of the mobile device, and as shown in fig. 1, the mobile device includes a housing 1, a motherboard 2, a radiator 3, a feeding point 4, and a grounding point 5;

keys are arranged on the outer side surface of the shell 1 in a protruding mode; the main board 2 is arranged in the shell 1, and the radiator 3 is arranged in the shell 1 and corresponds to the keys; the main board 2 and the radiator 3 are connected with the feed point 4, and the main board 2 and the radiator 3 are connected with the grounding point 5.

The utility model provides mobile equipment, which utilizes the radiator 3 matched with the keys on the outer side surface of the shell 1 in the mobile equipment as the radiator 3 for supporting wifi, reduces the number of antennas in the shell 1, does not need to independently add a 5G wifi antenna, and simultaneously reduces the interference between the radiator 3 and other devices in the shell 1 by enabling the position of the radiator 3 to be far away from the main board 2 and other positions in the shell 1, thereby ensuring the working efficiency of 2.4G wifi and 5G wifi.

In the present design, the radiator 3 in this embodiment 1 is an FPC board for realizing the key function, a metal contact corresponding to the key is provided on the FPC board, meanwhile, a key control module is provided on the motherboard 2, the FPC board is electrically connected with the key control module of the motherboard 2, the user presses the key on the outer side of the housing 1, and can press the metal contact to trigger the key control module function on the motherboard 2, and this embodiment 1 uses the present FPC board as the radiator 3 of 2.4G wifi and 5G wifi.

Preferably, the length of the radiator 3 is not less than a quarter of the 2.4G wifi operating wavelength. This is a specific implementation, sets up the radiator 3 of suitable length to utilize the frequency multiplication principle, produce two kinds of resonances, satisfy 2.4G wifi and 5G wifi's operating wavelength. In practical application, the length of the FPC board for the keys, which is equipped with the mobile device, can generally meet the requirements without modification.

More preferably, fig. 2 is a schematic diagram of the feed matching circuit 7 and the radio frequency switch, fig. 3 is a partial enlarged view of fig. 2, and as shown in fig. 2 and 3, the mobile device further includes the feed matching circuit 7, and the feed point 4 and the main board 2 are respectively communicated with the feed matching circuit 7. The feed matching circuit 7 is arranged to communicate the feed point 4 with the main board 2, so that the feed point 4 is matched with the impedance of the main board 2, and the antenna benefit is improved.

More preferably, the mobile device is further provided with a radio frequency switch 8, and the grounding point 5 and the main board 3 are electrically connected with the radio frequency switch 8. The radio frequency switch 8 is used to tune the frequency of the radiator 3. Specifically, the radio frequency switch is connected in series with an ac signal channel provided on the main board 3, and is also connected in series with the ground point 5, for tuning or switching the frequency of the radiator 3.

More preferably, the shell 1 comprises a front shell, a rear shell and a middle frame 13; the front shell and the rear shell are mutually fixed and enclosed to form a containing space, and the middle frame 13 is fixed in the containing space; the main board 2 is arranged on the middle frame 13; the radiator 3 is arranged at the edge of the middle frame 13. In this embodiment, the radiator 3 is disposed at the edge of the middle frame 13, so as to avoid occupying the position of the main board 2 and avoiding interference caused by the close position to other devices in the housing 1.

More preferably, the radiator 3 comprises a radiating strip 31 and an extension 32; the extension section 32 is vertically fixed on the radiation strip 31 and extends to the main board 2; the button sets up in the lateral surface of preceding shell or backshell, and the center 13 sets up the accommodation through groove in the position department that corresponds the button, and radiation strip 31 installs in the accommodation through groove. In a specific embodiment, the radiating strip 31 is vertically connected with the extension section 32, and is connected with the feed point 4 and the grounding point 5 to form an IFA loop, the resonance point is adjusted by utilizing the frequency multiplication principle, the working wavelengths of 2.4G wifi and 5G wifi are met, and wifi double-frequency coverage is realized; the radiation strip 31 is installed in the containing through groove at the side of the middle frame 13 and isolated from other devices in the shell 1, so that interference is avoided.

More preferably, the side wall of the accommodating through groove is provided with a communication port, and the communication port is arranged towards the main board 2; one end of the extension section 32 is fixed on the radiation strip 31, and the other end extends from the communication port to the main board 2 and is connected with the main board 2; the feed point 4 and the grounding point 5 are both positioned at one end of the extension section 32 away from the communication port; the radiation bar 31 and the extension 32 are both lamellar. In this embodiment, the accommodating through groove is provided with a communication port, so that the extension section 32 can extend from the radiation strip 31 to the main board 2 straightly, and a bending structure is not required to influence the shape of the radiator 3.

More preferably, the middle frame 13 is a plastic piece. The plastic part is selected as the middle frame 13, so that the interference to the radiator 3 is avoided, and the sensitivity of the antenna is reduced.

FIG. 4 is an S11 parameter diagram of the mobile device, as shown in FIG. 4, the return loss of the mobile device in the 2.4G wifi frequency band is-6.6 dB, and the return loss in the 5G wifi frequency band is-4.9-4.5 dB; fig. 5 is a graph of the efficiency of the mobile device as a function of frequency, as shown in fig. 5, the efficiency of the mobile device in the 2.4G wifi frequency band is-1.5 dB, and the efficiency in the 5G wifi frequency band is-2 dB.

The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.

Claims

1. A mobile device, characterized by:

the antenna comprises a shell, a main board, a radiator, a feed point and a grounding point;

keys are arranged on the outer side face of the shell in a protruding mode; the main board is arranged in the shell, and the radiator is arranged in the shell and corresponds to the key; the main board and the radiator are connected with the feed point, and the main board and the radiator are connected with the grounding point.

2. The mobile device of claim 1, wherein:

the length of the radiator is not less than one quarter of the 2.4G wifi working wavelength.

3. The mobile device of claim 2, wherein:

the mobile device further comprises a feed matching circuit, and the feed point and the main board are respectively communicated with the feed matching circuit.

4. A mobile device according to claim 3, characterized in that:

the mobile equipment antenna is also provided with a radio frequency switch, and the grounding point and the main board are electrically connected with the radio frequency switch.

5. The mobile device of claim 4, wherein:

the shell comprises a front shell, a rear shell and a middle frame; the front shell and the rear shell are mutually fixed and enclosed to form a containing space, and the middle frame is fixed in the containing space; the main board is arranged on the middle frame; the radiator is arranged at the edge of the middle frame.

6. The mobile device of claim 5, wherein:

the radiator comprises a radiation strip and an extension section; the extension section is vertically fixed on the radiation strip and extends to the main board; the key is arranged on the outer side face of the front shell or the rear shell, the position of the middle frame corresponding to the key is provided with a containing through groove, and the radiation strip is arranged in the containing through groove.

7. The mobile device of claim 6, wherein:

the side wall of the accommodating through groove is provided with a communication port, and the communication port is arranged towards the main board; one end of the extension section is fixed on the radiation strip, and the other end of the extension section extends from the communication port to the main board and is connected with the main board; the feed point and the grounding point are both positioned at one end of the extension section far away from the communication port; the radiating strips and the extension sections are all sheet-shaped.

8. The mobile device according to any of claims 5-7, characterized in that:

the middle frame is a plastic part.