WO2021000103A1

WO2021000103A1 - Terminal device

Info

Publication number: WO2021000103A1
Application number: PCT/CN2019/094000
Authority: WO
Inventors: 肖波; 刘晓东; 令狐荣林
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声光电科技(常州)有限公司
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2021-01-07
Also published as: CN110602608A

Abstract

The present invention provides a terminal device, comprising a body part and a sound generation component. The sound generation component comprises a housing movably connected to the body part and a sound generation unit accommodated in the housing. A sound generation surface of the housing is recessed to form an accommodation groove and a sound generation channel which are in communication with each other. The accommodation groove is covered by a cover plate, and the cover plate and the sound generation unit are provided at intervals to form a front acoustic cavity in communication with the sound generation channel. An inner surface and an extension surface of the body part form the accommodation groove for accommodating the sound generation component. The body part is provided with a gap extending from the inner surface to an outer surface. The sound generation component moves between a first position and a second position in the accommodation groove. When the housing is at the first position, the sound generation channel is covered by the body part, and the sound generated by the sound generation component is transmitted to the outside by means of the sound generation channel and the gap in turn. When the housing is at the second position, the sound generation channel is in communication with the outside, and the sound generated by the sound generation component is transmitted to the outside by means of the sound generation channel. The present invention solves the problem of the influence of airflow sound, piano sound, etc. on the sound effect of the terminal device in a loudspeaker mode.

Description

A terminal equipment

Technical field

The present invention relates to the technical field of acoustic-electric conversion, in particular to a terminal device.

Background technique

With the rapid development of science and technology, people’s pursuit of quality of life is getting higher and higher, and portable multimedia audio-visual equipment such as notebook computers, mobile phones, etc., as the experience terminal equipment in daily life, people have higher and higher requirements. Especially the performance requirements of its sound effect, but the terminal device in the prior art generates airflow sound, piano sound, etc. when in the speaker mode, which affects the sound effect of the terminal device.

Therefore, it is necessary to provide a terminal device.

technical problem

The purpose of the present invention is to provide a terminal device that provides a smoother front cavity channel in the speaker mode of the terminal device, and improves the problem that the terminal device generates airflow sound and piano sound in the speaker mode and affects the sound effect.

Technical solutions

The technical scheme of the present invention is as follows:

A terminal device, the terminal device includes a main body and a sound generating assembly assembled on the main body, the sound generating assembly includes a housing movably connected to the main body, and a sound house accommodated in the housing The housing includes a sound emitting surface and a back surface opposite to the sound emitting surface, and the sound emitting surface is recessed toward the back surface with a receiving groove for accommodating the sound emitting monomer and a sound emitting surface communicating with the receiving groove Channel, the sounding assembly further includes a cover plate covering the containing groove, the cover plate and the sounding unit are spaced apart to form a front sound cavity, the front sound cavity is in communication with the sounding channel, and the sounding unit The sound generated in the body only spreads outward through the sound channel;

The main body includes an exposed outer surface, an inner surface opposite to the sound emitting surface, and an extension surface extending from the inner surface to the outer surface, and the inner surface and the extension surface form an accommodating In the receiving groove of the sound generating component, the main body is provided with a notch extending from the inner surface to the outer surface;

The sounding assembly moves between a first position and a second position in the receiving groove; in the first position, the sounding channel is covered by the main body, and the sound generated by the sounding assembly passes through The sounding channel and the gap propagate to the outside of the terminal device; when the housing drives the sounding unit to move to the second position, at least part of the sounding channel is exposed to the terminal device, and the The sound channel is connected to the outside of the terminal device, and the sound generated by the sound component is transmitted to the outside of the terminal device through the sound channel.

Beneficial effect

The beneficial effect of the present invention is that the terminal device includes a main body part and a sound component that are assembled in cooperation, the sound component includes a casing and a sound unit, the casing and the main body are movably connected, and the sound surface of the casing is recessed toward the back to form a communication The accommodating groove and the sounding channel, the sounding monomer is accommodated in the accommodating groove, the accommodating groove is covered by a cover plate and the cover and the sounding monomer are spaced apart to form a front sound cavity communicating with the sounding channel; the inner surface of the main body and the extension surface form a housing The groove is used for accommodating the sounding component, and the main body is provided with a notch extending from the inner surface to the outer surface; the sounding monomer is accommodated in the receiving groove, and when the sounding component is in the first position in the receiving groove, the main body covers the sounding channel to produce sound The sound is emitted from the single unit. The sound passes through the front cavity and the sound channel and then comes out from the gap. At this time, it is the receiver mode of the terminal device; when the housing drives the sound unit to move to the second position in the receiving slot, at least part of the sound channel is exposed Outside, the sound emitted by the sounding unit is directly transmitted to the outside world through the front sound cavity and sounding channel, which is the speaker mode of the terminal device at this time; using this technical solution, two sounding paths are provided in the speaker and receiver modes. The speaker mode provides a smoother sound output path, which improves the problem of airflow sound and piano sound generated by the terminal device in the speaker mode, which affects the sound effect.

Description of the drawings

FIG. 1 is a schematic diagram of the overall structure of a sound component in a terminal device of the present invention in a first position in a receiving slot;

2 is a schematic diagram of the overall structure of a sounding component in a terminal device of the present invention in a second position in the receiving slot;

Figure 3 is a schematic diagram of an exploded structure of a terminal device of the present invention;

4 is a schematic diagram of the structure of the housing of a terminal device of the present invention;

5 is a schematic structural diagram of a cover plate of a terminal device of the present invention;

Figure 6 is a bottom view of Figure 1;

Figure 7 is a cross-sectional view in the direction of A-A in Figure 6;

Fig. 8 is a partial enlarged schematic diagram of B in Fig. 2;

Fig. 9 is a partial enlarged view of C in Fig. 7;

Fig. 10 is a partial enlarged view at D in Fig. 8.

The best mode of the invention

Further, the cover plate is further extended to form an extension plate covering the sound channel, the extension plate is formed with a sound hole communicating with the sound channel, and the sound generated by the sound monomer passes through the The sound channel and the sound hole propagate outward.

Further, the sound-producing unit includes a diaphragm, the diaphragm includes a spherical top in a central area and a folding ring portion surrounding the spherical top, and the diaphragm and the cover are spaced apart to form the front acoustic cavity .

Further, the sound outlet holes are arranged on the cover plate in a matrix arrangement.

Further, a side of the cover plate away from the sound emitting unit is recessed with a limiting groove, and the sound holes are arranged in the limiting groove in a matrix.

Further, the groove wall of the accommodating groove extends toward the sound emitting unit to form a fixing portion, and the fixing portion abuts the folding ring portion.

Further, the outer surface includes a front surface opposite to the inner surface, a side surface bent and extended from the edge of the front surface toward the inner surface, and a bottom surface connected to an end of the side surface away from the front surface. The bottom surface is recessed in the direction corresponding to the front surface of the sound generating component to form the receiving groove, the inner surface extends to the side surface and is connected to the side surface, and the notch extends on the side surface.

Further, when the sound component is located in the first position, the back surface and the bottom surface are spliced and coplanar.

Embodiments of the invention

The present invention will be further described below with reference to the drawings and embodiments.

Examples:

1 to 4, a terminal device includes: a main body 10 and a sound generating assembly 20 assembled on the main body 10. The sound generating assembly 20 includes a housing 21 movably connected to the main body 10, and the housing 21 The middle sounding unit 22, the housing 21 includes a sounding surface 211 and a back surface 212 opposite to the sounding surface 211. The sounding surface 211 is recessed toward the back surface 212 to form a receiving groove 2111 for accommodating the sounding monomer 22, and a receiving groove 2111 connected to it. The sounding channel 2112, the sounding assembly 20 further includes a cover plate 23 that is arranged in the containing groove 2111. The cover plate 23 and the sounding unit 22 are spaced apart to form a front sound cavity 30. The front sounding cavity 30 is in communication with the sounding channel 2112. The sound of is only transmitted through the sound channel 2112;

The main body 10 includes an exposed outer surface 11, an inner surface 12 opposite to the sound emitting surface 211, and an extension surface 13 extending from the inner surface 12 to the outer surface 11, and the inner surface 12 and the extension surface 13 form a housing for accommodating the sound emitting component 20 Groove 40, the main body 10 is provided with a notch 14 extending from the inner surface 12 to the outer surface 11;

The sound component 20 moves between the first position and the second position in the receiving groove 2111; in the first position, the sound channel 2112 is covered by the main body 10, and the sound generated by the sound component 20 propagates through the sound channel 2112 and the gap 14 in turn To the outside of the terminal device; when the housing 21 drives the sounding unit 22 to move to the second position, at least part of the sounding channel 2122 is exposed to the terminal device, the sounding channel 2112 is connected to the outside of the terminal device, and the sound generated by the sounding component 20 is transmitted through the sounding channel 2112 To the outside of the terminal equipment.

In the present invention, the terminal device includes a main body 10 and a sounding assembly 20 that are assembled together. The sounding assembly 20 includes a housing 21 and a sounding monomer 22. The housing 21 is movably connected to the main body 10, and the sounding surface 211 of the housing 21 The receiving groove 2111 and the sounding channel 2112 connected to each other are recessed toward the back surface 212. The sounding monomer 22 is received in the receiving groove 2111. The receiving groove 2111 is covered by the cover 23 and the cover 23 and the sounding monomer 22 are spaced apart to form and emit The front acoustic cavity 30 communicated with the channel 2112; the inner surface 12 of the main body 10 and the extension surface 13 form a receiving groove 40 for receiving the sound generating assembly 20, and the main body 10 is provided with a gap 14 extending from the inner surface 12 to the outer surface 11; The monomer 22 is accommodated in the accommodating groove 40. When the sound generating assembly 20 is located in the first position in the accommodating groove 40, the main body 10 covers the sounding channel 2112, and the sounding monomer 22 emits sound. The sound passes through the front sound cavity 30 and the sounding channel 2112 and then exits the gap. 14 out, it is the receiver mode of the terminal device at this time; when the housing 21 drives the sounding unit 22 to move to the second position in the receiving slot 40, at least part of the sounding channel 2112 is exposed to the outside, and the sound emitted by the sounding unit 22 Propagate directly to the outside through the front sound cavity 30 and the sound channel 2112, which is the speaker mode of the terminal device at this time; using this technical solution, two sound paths are provided in the speaker and receiver modes, and one is provided in the speaker mode. The smoother sound path improves the problem that the terminal device will produce airflow sound and piano sound in the speaker mode, which will affect the sound effect.

In this technical solution, the housing 21 is movably connected to the main body 10. Here, the connection between the housing 21 and the main body 10 will be described as an example: the magnetic steel is fixed on the main body 10, and the housing 21 Fix the coil that repels the polarity of the magnet. The magnet and the coil are connected by a spring, and the coil is electrically connected to the power supply of the terminal device; when the power supply is connected to the coil, the coil generates polarity and repels and stretches with the magnet The spring moves the housing 21 from the first position to the second position; when the power supply is disconnected from the coil, the coil has no polarity, and the contraction of the spring moves the housing 21 from the second position to the first position, thereby realizing the housing 21 For the movable connection with the main body 10, the present invention does not limit the movable connection between the housing and the main body.

Further, referring to FIGS. 5-7 and 9, the cover plate 23 is further extended to form an extension plate covering the sound channel 2112. The extension plate is formed with a sound hole 231 communicating with the sound channel 2112, and the sound monomer 22 generates The sound of the sound propagates outward through the sound channel 2112 and the sound hole 231 in turn. That is, an extension plate is extended from the cover 23 to cover the sound channel 2112, and a sound hole 231 communicating with the sound channel 2112 is opened on the extension plate to achieve the sound effect of the terminal device, and the sound channel 2112 is covered by the extension plate to prevent it from appearing The main body 10 and the housing 21 are not assembled tightly. When the sound component 20 is in the first position, the sound leakage occurs because the main body 21 does not completely cover the sound channel 2112. As shown in FIG. 9, the arrow in the figure indicates that the sound component The sound propagation path when 20 is at the first position, that is, the sound passes through the front acoustic cavity 30, the sound channel 2112 and the sound hole 231, and finally comes out from the gap 14. As shown in Figures 8 and 10, when the sound component 20 moves from the first position to the second position, the cover plate 23 moves along with the housing 21 so that at least part of the sound hole 231 is exposed to the outside, the arrow in the figure It is the direction of the sound emitted by the sounding monomer 22, that is, the sound is transmitted from the sound hole 231 after passing through the front sound cavity 30 and the sounding channel 2112, thereby realizing the speaker mode of the terminal device.

The sound holes 231 are arranged on the cover plate 23 in a matrix arrangement. Preferably, a side of the cover plate 23 away from the sound unit 22 is recessed in the limiting groove 232, and the sound holes 231 are arranged in the limiting groove 232 in a matrix. By arranging the sound holes 231 on the bottom of the limiting slot 232 in a matrix arrangement, the sound emitted by the sounding unit 22 is gradually restricted to the sound hole 231 to improve the output of the terminal device in the receiver and speaker modes. Sound quality, thereby enhancing the user experience of the terminal device.

Further, referring to FIGS. 3, 9 and 10, the vocal unit 22 includes a diaphragm 221. The diaphragm 221 includes a dome 2211 in the central area and a folding ring 2212 surrounding the dome 2211. The diaphragm 221 and the cover plate 23 are arranged at intervals to form a front acoustic cavity 30. Preferably, the groove wall of the receiving groove 2111 extends toward the sounding monomer 22 to form a fixing portion 2113, and the fixing portion 2113 abuts against the folding ring portion 2212, thereby tightly fixing the sounding monomer 22 in the receiving groove 2111 and preventing the sounding monomer When sounding and vibrating, 22 intermittently touches the groove wall of the receiving groove 2111, which affects the sound performance of the sounding unit 22.

Further, referring to Figures 2, 7 and 8, the outer surface 11 includes a front surface 111 opposite to the inner surface 12, a side surface 112 bent and extended from the edge of the front surface 111 toward the inner surface 12, and a side surface 112 connected to the side surface 112 away from The bottom surface 113 at one end of the front surface 111 corresponds to the sound generating component 20 facing the front surface 111 to form a receiving groove 40. The inner surface 12 extends to the side surface 112 and is connected to the side surface 112. The gap 14 extends to the side surface 112; preferably, the sound generating component 20 When in the first position, the back surface 212 and the bottom surface 113 are spliced and coplanar, so that the external surface of the terminal device is flat, and the aesthetic appearance of the terminal device is improved.

The above are only the embodiments of the present invention. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these all belong to the present invention. The scope of protection.

Industrial applicability

Improved the problem that the terminal device will produce airflow sound and piano sound in the speaker mode, which will affect the sound effect.

Claims

A terminal device, the terminal device comprising: a main body and a sound generating component assembled on the main body, wherein the sound generating component includes a housing movably connected to the main body, and a housing that is housed in the main body. A sounding monomer in a housing, the housing includes a sounding surface and a back surface opposite to the sounding surface. The sounding surface is recessed toward the back surface to form a receiving groove for accommodating the sounding monomer, and A sounding channel communicated with the receiving groove, the sounding assembly further includes a cover plate covering the receiving groove, the cover plate and the sounding unit are spaced apart to form a front acoustic cavity, and the front acoustic cavity is in communication with the sounding channel , The sound generated in the vocal unit only propagates outward through the vocal channel;

The main body includes an exposed outer surface, an inner surface opposite to the sound emitting surface, and an extension surface extending from the inner surface to the outer surface, and the inner surface and the extension surface form an accommodating In the receiving groove of the sound generating component, the main body is provided with a notch extending from the inner surface to the outer surface;

The sounding assembly moves between a first position and a second position in the receiving groove; in the first position, the sounding channel is covered by the main body, and the sound generated by the sounding assembly passes through The sounding channel and the gap propagate to the outside of the terminal device; when the housing drives the sounding unit to move to the second position, at least part of the sounding channel is exposed to the terminal device, and the The sound channel is connected to the outside of the terminal device, and the sound generated by the sound component is transmitted to the outside of the terminal device through the sound channel.
The terminal device according to claim 1, wherein the cover plate is further extended to form an extension plate covering the sound channel, and a sound hole communicating with the sound channel is formed through the extension plate, so The sound generated by the vocal unit is transmitted outward through the vocal channel and the sound outlet in sequence.
The terminal device according to claim 2, wherein the vocal unit includes a diaphragm, the diaphragm includes a spherical top in a central area and a folded ring part surrounding the spherical top, and the diaphragm is connected to The cover plates are arranged at intervals to form the front acoustic cavity.
The terminal device according to claim 3, wherein the sound holes are arranged in a matrix arranged on the cover plate.
4. The terminal device according to claim 4, wherein a side of the cover plate away from the sounding unit is recessed with a limiting groove, and the sound holes are arranged in a matrix in the limiting groove.
The terminal device according to claim 4, wherein the groove wall of the receiving groove extends toward the sound emitting unit to form a fixing portion, and the fixing portion abuts the folding ring portion.
The terminal device according to claim 1, wherein the outer surface includes a front surface opposite to the inner surface, a side surface bent and extended from the front surface edge toward the inner surface, and a side surface connected to the inner surface. The side surface is away from the bottom surface of one end of the front surface, the bottom surface corresponding to the sound generating component is recessed toward the front surface to form the receiving groove, the inner surface extends to the side surface and is connected to the side surface, and the notch extends On the side.
The terminal device according to claim 7, wherein when the sound component is located in the first position, the back surface and the bottom surface are spliced and coplanar.