CN102595289A - Wireless charging receiving terminal integrated with loudspeaker - Google Patents

Abstract

The invention relates to the fields of wireless charging and loudspeakers, in particular to a wireless charging receiving end integrated with the loudspeaker. It is divided into speaker part and wireless charging receiving device part. The structural form of the loudspeaker part is as follows: a groove is set at the center of the lower cover, the magnet is placed in the groove, the top plate and the paper cone are installed on the magnet in turn, the voice coil is set on the magnet, and bonded with the paper cone; or The structural form of the combination of inner and outer ring magnets, or replace one of the inner and outer ring magnets with soft iron; the structure of the wireless charging receiving device part is: the lower cover is provided with a raised part of the lower cover at the position facing away from the speaker, and the coil is set on the lower cover on the raised part. The receiving end can significantly improve the space utilization rate, and reduce the interference of these two components to other components in the electronic product, and has simple structure, low cost, small volume, low carbon and environmental protection.

Description

A wireless charging receiver integrated with a speaker

technical field

The invention relates to the fields of wireless charging and loudspeakers, in particular to a wireless charging receiving end integrated with the loudspeaker.

Background technique

With the advancement of science and technology and the improvement of people's living standards, mobile phones, tablet computers, MP4, etc. have become indispensable electronic consumer goods in our daily life. The traditional charging method of these electronic products is to use special-purpose charger and charging line interface to insert in the household circuit and charge. But at present almost all kinds of electronic products such as mobile phones must be equipped with a special charger when leaving the factory, because there are various chargers on the market, so it is inconvenient to charge. Especially if a person has multiple mobile phones, multiple chargers must be carried, which brings great burden to travel. Although the current universal charger can charge a variety of batteries compatible, it is necessary to take the battery out of the electronic product, which is not only troublesome but also causes the loss of data stored in some electronic products due to lack of power, and generally only supports A battery is charged.

The current wireless chargers introduce electromagnetic induction technology into the charging field of electronic products, and realize the non-shock charging of mobile phones through electric-magnetic and magnetic-electric conversion. Its core technology is similar to the coreless processing of transformers. This wireless charging method will definitely rewrite the traditional electronic product charging method. When charging, just put the electronic product to be charged on the charging and emitting device. Moreover, it is possible to unify the charging methods of all electronic products, without being restricted by any brand and model, just share one charger, and charge multiple electronic products at the same time. At present, the latest wireless charger has the advantages of stable current and short charging time compared with the traditional charger, and because of its wireless and non-contact characteristics, it has high safety. If all brands of mobile phones adopt this standard charger, then mobile phone manufacturers all over the world do not need to configure chargers, and each user family only needs one charger to fully meet the charging requirements of mobile phones in the family. This can greatly save resources, reduce carbon emissions, and meet the requirements of low-carbon development.

However, under the trend of thinning and miniaturization of electronic consumer products today, the internal space of electronic products is getting smaller and smaller. The arrangement of the receiver of the wireless charger inside the electronic product is very important. At the same time, because the receiver contains a coil, it is easier to interfere with other components inside the electronic product. How to place the receiver has become a thorny issue. The current method is to arrange a magnetic steel shell around the receiver coil, so that the external radiation of the coil is greatly attenuated. But this is bound to further squeeze the already precious real estate inside electronics. In addition, speakers that are indispensable in electronic products are often large in size and interfere with the outside world, so their placement often needs to be carefully considered.

Contents of the invention

The purpose of the present invention is to propose a wireless charging receiving end integrated with the speaker in view of the deficiencies of the prior art, which can integrate the speaker assembly of the electronic product and the wireless charging receiving end assembly, significantly improve the space utilization rate, and Reduce the interference of these two components with other components.

The technical scheme adopted in the present invention is:

The receiving end structure includes an upper cover, a lower cover, a raised part of the lower cover, a paper cone, a top sheet, a voice coil, a magnet, and a coil, and is divided into a speaker part and a wireless charging receiving device part. The upper cover and the lower cover play the roles of protection, fixation and radiation shielding for the whole.

The speaker part has 3 structural forms:

The first structure is: a groove is set in the center of the lower cover, the magnet is placed in the groove, the top sheet and the paper cone are installed on the magnet in turn, the voice coil is set on the magnet, and bonded with the paper cone;

The second structure is: a groove is set at the center of the lower cover, the soft iron is set in the groove, the ring-shaped magnet is placed outside the soft iron, the top sheet is placed on the magnet, the paper cone is placed on the soft iron, and the voice coil is set on the soft iron. or set the magnet in the groove, put the annular soft iron outside the magnet, place the top piece on the soft iron, place the paper cone on the magnet, and set the voice coil on the magnet on, and glued together with the paper cone;

The third structure is: a groove is set at the center of the lower cover, the inner ring magnet is placed in the groove, the outer ring magnet is set outside the inner ring magnet, and the top sheet and the paper cone are respectively arranged on the outer ring magnet and the inner ring magnet respectively. The ring is set on the inner ring magnet and bonded with the paper cone;

The entire speaker part is fixed between the upper cover and the lower cover; the voice coil will vibrate up and down under the action of the magnetic field provided by the magnet when it is connected to the alternating current, and then drive the paper cone that is stuck together with it to vibrate, thereby pushing the surrounding air to vibrate and produce sound ;

The structure of the wireless charging receiver part is as follows: the lower cover is provided with a raised part of the lower cover at a position facing away from the speaker part, and the coil is sleeved on the raised part of the lower cover. The coil is used to sense the electromagnetic wave signal of the external wireless charging sending device.

The raised portion of the lower cover is in the shape of a column, a square column or a polygon column.

In the third structural form of the loudspeaker part, the polarities of the outer magnet and the inner magnet are opposite.

The beneficial effects of the present invention are:

This structure integrates the speaker component and the wireless charging receiver component, which significantly improves the space utilization rate and reduces the interference of these two components to other components in the electronic product; the structure is simple, the cost is low, the volume is small, low-carbon and environmentally friendly, and extremely Market Competitiveness.

Description of drawings

Fig. 1 (a) and Fig. 1 (b) are respectively the top view and the sectional view of embodiment 1;

Fig. 2 is the partially enlarged view of the sectional view of embodiment 1;

Fig. 3 (a) and Fig. 3 (b) are respectively the top view and the sectional view of embodiment 2;

Fig. 4 is the partially enlarged view of the sectional view of embodiment 2;

Fig. 5 (a) and Fig. 5 (b) are respectively the top view and the sectional view of embodiment 3;

Fig. 6 is the partially enlarged view of the sectional view of embodiment 3;

Labels in the figure:

1-upper cover; 2-lower cover; 2a-raised part of lower cover; 3-paper cone; 4-top sheet; 5-voice coil; 6-magnet; 6a-outer ring magnet; 6b-inner ring magnet; 7 - coil; 8 - circuit board; 9 - soft iron.

Detailed ways

The present invention provides a wireless charging receiver integrated with a loudspeaker. The present invention will be further described below in conjunction with the description of the drawings and specific implementation methods.

Example 1

Fig. 1 and Fig. 2 are respectively the top view and the cross-sectional view of Embodiment 1 and the partial enlarged view of the cross-sectional view. The structure of this embodiment includes an upper cover 1 , a lower cover 2 , a raised portion 2 a of the lower cover, a paper cone 3 , a top sheet 4 , a voice coil 5 , a magnet 6 , and a coil 7 . Among them, the paper cone 3, the top sheet 4, the voice coil 5, and the magnet 6 are part of the speaker, and the convex part 2a of the lower cover and the coil 7 are part of the wireless charging receiving device. A groove is set at the center of the lower cover 2, the magnet 6 is placed in the groove, the top sheet 4 and the paper cone 3 are installed on the magnet 6 in turn, the voice coil 5 is set on the magnet 6, and bonded with the paper cone 3; The upper cover 1 and the lower cover 2 play the roles of protecting, fixing and shielding radiation as a whole. The circuit board 8 is placed on the lower cover 2, because the circuit part (circuit board 8) is not the essence of the present invention, so the rectification and filter circuits of the wireless charging receiving device are not discussed here.

The technical solution adopted is: the voice coil 5 is connected to an alternating current, and under the action of the magnetic field provided by the magnet 6, it will vibrate up and down, and then drive the paper cone 3 that is stuck together with it to vibrate, thereby pushing the surrounding air to vibrate and make a sound. Glued to the top of the ceramic sheet, the entire speaker part is fixed between the upper cover 1 and the lower cover 2 and is located near the axis. The lower cover 2 has a raised part 2a of the lower cover facing away from the speaker, which can play a role in the coil 7 wound on it. Positioning function, the coil 7 is used to induce the electromagnetic wave signal of the external wireless charging sending device. This structure integrates the speaker assembly and the wireless charging receiving end assembly, which significantly improves the space utilization rate and ensures the respective functions of the speaker part and the wireless charging receiving part. At the same time, the interference of these two components to other components inside the electronic product can be reduced.

Example 2

Fig. 3 and Fig. 4 are the top view, the cross-sectional view and the partially enlarged view of the cross-sectional view of Embodiment 2, respectively. The difference between this embodiment and Embodiment 1 lies in the speaker part. Its structural form is: a groove is set at the center of the lower cover 2, the soft iron 9 is set in the groove, the ring-shaped magnet 6 is set outside the soft iron 9, and the top The sheet 4 is placed on the magnet 6, the paper cone 3 is placed on the soft iron 9, the voice coil 5 is set on the soft iron 9, and bonded with the paper cone 3. Or the magnet 6 is arranged in the groove, the annular soft iron 9 is set outside the magnet 6, the top sheet 4 is placed on the soft iron 9, the paper cone 3 is placed on the magnet 6, the voice coil 5 is set on the magnet 6, and Bond together with paper cone 3.

The direction of the magnetic field lines in the gap where the coil 5 is located is opposite to that of Embodiment 1. This magnetic field arrangement method is an external magnetic circuit type, and Embodiment 1 is an internal magnetic circuit type.

Example 3

Fig. 5 and Fig. 6 are respectively the top view, the cross-sectional view and the partially enlarged view of the cross-sectional view of Embodiment 3. The difference between this embodiment and Embodiment 1 lies in the speaker part. Its structure is as follows: a groove is set at the center of the lower cover 2, the inner ring magnet 6b is placed in the groove, and the outer ring magnet 6a is set outside the inner ring magnet 6b. , the outer ring magnet 6a and the inner ring magnet 6b are respectively provided with the top plate 4 and the paper cone 3 in sequence, the voice coil 5 is set on the inner ring magnet 6b, and bonded with the paper cone 3 together. As shown in FIG. 6, the polarities of the corresponding outer ring magnets 6a and inner ring magnets 6b at the same position are opposite. This magnetic field arrangement method is a double magnetic circuit type.

The above are only preferred embodiments of the present invention, and those skilled in the art can make any modifications within the scope specified in the claims.

Claims (3)

1. One kind with the integrated wireless charging receiving terminal of loud speaker; Structure comprises loam cake (1), lower cover (2), lower cover bossing (2a), cone (3), top flat (4), voice coil loudspeaker voice coil (5), magnet (6), coil (7); Be divided into speaker portion and wireless charging receiver part, it is characterized in that

   Said speaker portion has 3 kinds of versions:

   Version one is: lower cover (2) center is provided with groove, and magnet (6) places in the groove, and top flat (4), cone (3) are installed on the magnet (6) successively, and voice coil loudspeaker voice coil (5) is set on the magnet (6), and bonds together with cone (3);

   Version two is: lower cover (2) center is provided with groove, and soft iron (9) is arranged in the groove, and the magnet (6) of annular is placed in outside the soft iron (9); Top flat (4) places on the magnet (6); Cone (3) places on the soft iron (9), and voice coil loudspeaker voice coil (5) is set on the soft iron (9), and bonds together with cone (3); Perhaps magnet (6) is arranged in the groove, the soft iron (9) of annular is placed in outside the magnet (6), and top flat (4) places on the soft iron (9), and cone (3) places on the magnet (6), and voice coil loudspeaker voice coil (5) is set on the magnet (6), and bonds together with cone (3);

   Version three is: lower cover (2) center is provided with groove; Inner ring magnet (6b) places in the groove; Outer ring magnet (6a) is set in outside the inner ring magnet (6b); Set gradually top flat (4) and cone (3) on outer ring magnet (6a) and the inner ring magnet (6b) respectively, voice coil loudspeaker voice coil (5) is set on the inner ring magnet (6b), and bonds together with cone (3);

   Whole speaker portion is fixed between loam cake (1) and the lower cover (2); Vibration under the action of a magnetic field that magnet provides behind the logical upward alternating current of voice coil loudspeaker voice coil (5), and then drive cone (3) vibration, vibrate thereby promote surrounding air, sound;

   The structure of wireless charging receiver part is: lower cover (2) position of speaker portion dorsad is provided with lower cover bossing (2a), and coil (7) is set on the lower cover bossing (2a), is used to respond to the electromagnetic wave signal of external wireless charging dispensing device.
2. 2. a kind of and the integrated wireless charging receiving terminal of loud speaker according to claim 1 is characterized in that, said lower cover bossing (2a) is cylindric, flat column or polygon post shapes.
3. 3. a kind of and integrated wireless charging receiving terminal of loud speaker according to claim 1 is characterized in that in the third version of said speaker portion, the polarity of outer ring magnet (6a) and inner ring magnet (6b) is opposite.

Images