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Mobile terminal

A mobile terminal and vibrator technology, applied in the direction of telephone structure, sensor, branch equipment, etc., can solve the problems of insufficient driving force of vibrator, increased impedance, insufficient high-frequency volume of mobile phone, etc.

Active Publication Date: 2021-09-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of turns of a coil is proportional to its impedance, and when the sounding frequency is high, the impedance of the coil increases further as the sounding frequency increases
In this way, the sound of the screen is in the high-frequency band, and the current on the coil will decrease due to the increase of impedance, so that the driving force provided by the vibrator to the screen is insufficient, resulting in insufficient high-frequency volume from the mobile phone.

Method used

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Examples

Experimental program
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Effect test

example 1

[0061] In this example, when the size of the gap H between the carrier plate 111 of the middle frame 11 and the back surface B of the display module 10 is limited, as Figure 3a As shown, at least a part of the vibrator 20 can be disposed in the accommodation cavity 103 .

[0062] The above-mentioned vibrator 20 may include such as Figure 3a Shown are a first magnet 201 , a second magnet 202 , a coil 200 and at least one third magnet 203 . The first magnet 201 , the coil 200 and the third magnet 203 are all connected to the back surface B of the display module 10 . like Figure 3b As shown, the first magnet 201 may be located in the closed area formed by the wires of the coil 200 . In addition, if Figure 3a As shown, the second magnet 202 is connected to the bearing plate 111 of the middle frame 11 . Moreover, the second magnet 202 is located opposite to the first magnet 201 .

[0063] In addition, in order to connect the first magnet 201, the coil 200 and the third ma...

example 2

[0104] This example is the same as Example 1, such as Figure 3a As shown, at least a part of the vibrator 20 can be disposed in the accommodation cavity 103 . The vibrator 20 includes a first magnet 201 , a second magnet 202 , a coil 200 and at least one third magnet 203 . The first magnet 201 , the coil 200 and the third magnet 203 can be disposed in the first magnetic isolation cover 41 . The third magnet 203 is disposed inside the second magnetic isolation cover 42 . In addition, the vibrator 20 may further include a fourth magnet 204 disposed in the second magnetic isolation cover 42 .

[0105] The difference from Example 1 is that, if Figure 12a As shown, the magnetization direction of the third magnet 203 is parallel to the display surface A of the display module 10 .

[0106] For the convenience of description, in some embodiments of the present application, the Figure 12a The structure shown is taken as an example, and the first pole of the magnet is an N pole,...

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Abstract

The embodiment of the invention provides a mobile terminal, relates to the technical field of screen sounding, and is used for solving the problem of insufficient volume in a high frequency band when the mobile terminal realizes screen sounding. At least one part of the vibrator in the mobile terminal is arranged in the accommodating cavity. The vibrator includes a first magnet, a second magnet, a coil, and at least one third magnet. The first magnet, the coil and the third magnet are all connected with the back face of the display module. The first magnet is located in a closed area wound by a wire of the coil. The third magnet is located on one side of the coil away from the first magnet. The second magnet is connected with the middle frame, and the position of the second magnet is opposite to the position of the first magnet. The first pole of the first magnet, the first pole of the second magnet and the second pole of the third magnet are close to each other, so that at least one part of magnetic lines penetrate through the coil from the surface, close to the first magnet and the surface, close to the third magnet, of the coil.

Description

technical field [0001] The present application relates to the technical field of screen sound generation, and in particular to a mobile terminal. Background technique [0002] Users have higher and higher requirements on the screen-to-body ratio of mobile terminals, such as mobile phones. In order to increase the screen-to-body ratio of the mobile phone, a vibrator may be provided on the back of the display screen of the mobile phone. The driving force provided by the vibrator to the display screen can drive the display screen to vibrate. In this case, the display screen can be used as a vibrating membrane to push the air to generate sound during the vibration process, so as to realize the sound of the screen. In this way, there is no need to punch holes and install earpieces on the front of the mobile phone, so that the purpose of increasing the screen ratio of the mobile phone can be achieved. [0003] The vibrator is provided with a coil for generating the above-mentio...

Claims

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Application Information

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IPC IPC(8): H04M1/02
CPCH04M1/026H04M1/0266H04R9/04H04R9/02H04R2499/15H04R2499/11H04R9/025H04R7/04G06F1/1656H04M2201/08
Inventor 张成陈文浩
Owner HUAWEI TECH CO LTD
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