CN114598976A

CN114598976A - Resonance sound production loudspeaker and electronic equipment

Info

Publication number: CN114598976A
Application number: CN202210411355.4A
Authority: CN
Inventors: 陈天祠
Original assignee: LCFC Hefei Electronics Technology Co Ltd
Current assignee: LCFC Hefei Electronics Technology Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-06-07

Abstract

The embodiment of the invention provides a resonance sounding loudspeaker and electronic equipment, wherein the resonance sounding loudspeaker comprises: an outer housing; a magnetic circuit mounted on the outer case; a voice coil movably mounted on the outer case and adjacent to the magnetic circuit, the voice coil being configured to generate a second magnetic field that resonates with the first magnetic field of the magnetic circuit when receiving an audio signal, the voice coil being capable of vibrating in a direction perpendicular to the magnetic circuit based on a resonant force; and the conducting piece is connected with the voice coil and can be externally connected with a vibrating piece facing a user so as to conduct the vibration force of the voice coil to the vibrating piece. The resonance sounding loudspeaker of the invention occupies small space, and can ensure stable sound effect and no treble loss.

Description

Resonance sound production loudspeaker and electronic equipment

Technical Field

The embodiment of the invention relates to the field of loudspeaker equipment, in particular to a resonance sounding loudspeaker and electronic equipment.

Background

At present, the loudspeaker design needs to be separately arranged in the electronic equipment, the sound-emitting direction needs to be limited, otherwise, the user cannot feel the high-pitched sound due to the fact that the high-frequency directivity is too strong, and the high-pitched sound effect is lost. Taking an electronic device as an example of a notebook computer, the current solution is to set a sound unit around a keyboard or at a rotating shaft, where the sound is emitted downward or upward, but if the sound is emitted downward, the high frequency loss is too large due to too strong directivity of the high frequency, so that the human ear cannot feel a good high-pitched sound effect. Moreover, because a loudspeaker needs to be placed in a separate opening area in the equipment, the loudspeaker can sound towards a user, so that the requirement on the position is high, the real-time position of the user needs to be considered, and the space in the equipment is limited more.

Disclosure of Invention

The invention provides a resonance sounding loudspeaker which occupies small space, can ensure stable sound effect and does not lose high pitch, and electronic equipment with the loudspeaker.

In order to solve the above technical problem, an embodiment of the present invention provides a resonance sound-producing speaker, including:

an outer housing;

a magnetic circuit mounted on the outer case;

a voice coil movably mounted on the outer case and adjacent to the magnetic circuit, the voice coil being configured to generate a second magnetic field that resonates with the first magnetic field of the magnetic circuit when receiving an audio signal, the voice coil being capable of vibrating in a direction perpendicular to the magnetic circuit based on a resonant force; and

and a conductor connected to the voice coil and capable of being externally connected to a vibration member facing a user to transmit a vibration force of the voice coil to the vibration member.

As an optional embodiment, the magnetic circuit further includes a limiting member, the limiting member is at least connected to the voice coil and the outer casing respectively, and can be linked with the voice coil to limit the vibration direction of the voice coil to be perpendicular to the magnetic circuit in real time.

As an optional embodiment, the outer casing has at least an annular groove, the magnetic circuit is installed in the groove, the magnetic circuit includes a magnetic member, the voice coil is suspended in the groove and surrounds at least a portion of the magnetic member, and a gap is formed between the voice coil and the magnetic member.

As an optional embodiment, the magnetic circuit further includes a metal housing, the metal housing is connected to the tank, the metal housing has a receiving groove, and the magnetic member is disposed in the receiving groove and forms an annular space with a sidewall of the receiving groove.

As an alternative embodiment, the magnetic member comprises a magnet block.

As an optional embodiment, the limiting member is annular, an outer ring of the limiting member is fixed on the outer casing, one side of the inner ring facing the magnetic circuit is connected to the voice coil, and the conducting member is connected to one side of the inner ring facing away from the magnetic circuit so as to be connected to the voice coil through the limiting member.

As an optional embodiment, the limiting member includes an outer frame, an inner frame, and a plurality of elastic arms connecting the outer frame and the inner frame, the movement direction of the elastic arms is perpendicular to the magnetic circuit, the outer frame is fixed on the outer casing, and the inner frame is connected to the voice coil and the conducting member.

As an alternative embodiment, the conductor and the magnetic circuit have a target spacing therebetween.

Another embodiment of the present invention also provides an electronic device, which includes the resonant sound-emitting speaker as described in any one of the above embodiments.

As an optional embodiment, the electronic device further comprises a touch panel and a sound source module, and the resonance sounding speaker is connected with the touch panel and the sound source module.

Based on the disclosure of the embodiment, the resonant sounding horn has the advantages that the resonant sounding horn is simple in overall structure, easy to achieve, small in size, slim and small, and does not occupy a large installation space. In addition, this resonance sound production loudspeaker is through setting up the magnetic circuit, voice coil loudspeaker voice coil and conduction piece can make the voice coil loudspeaker voice coil receive behind the audio signal can produce magnetic field effect with the magnetic circuit, and then cause the vibration, this vibration accessible conduction piece is conducted to external vibration piece on the conduction piece, make its vibration and then the sound production, and this vibration piece is towards the user setting, consequently when vibration piece drives the air vibration sound production, can not produce the phenomenon that high frequency directive property is too strong, and the sound wave can directly be received by the user, the audio that the user experienced has been ensured better.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a vibration sound-producing horn according to an embodiment of the present invention.

Fig. 2 is a sectional view showing the structure of a vibration speaker according to an embodiment of the present invention.

Fig. 3 is a diagram showing a practical application of the vibration sound horn in the embodiment of the present invention.

Fig. 4 is a flow chart of an application of the vibration-producing horn in an embodiment of the present invention.

Reference numerals:

1-an outer shell; 2-a magnetic circuit; 3-a voice coil; 4-a conductor; 5-a limiting part; 6-a magnet block; 7-a metal housing; 8-vibrating element

Detailed Description

The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.

It will be understood that various modifications may be made to the embodiments disclosed herein. The following description is, therefore, not to be taken in a limiting sense, but is made merely as an exemplification of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.

The description may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a resonance sound-producing speaker, including:

an outer shell 1;

a magnetic circuit 2 mounted on the outer case 1;

a voice coil 3 movably mounted on the outer case 1 and adjacent to the magnetic circuit 2, the voice coil 3 generating a second magnetic field resonating with the first magnetic field of the magnetic circuit 2 when receiving an audio signal, the voice coil 3 being capable of vibrating in a direction perpendicular to the magnetic circuit 2 based on a resonating force; and

and a conductor 4 connected to the voice coil 3 and capable of externally connecting a vibrator 8 for forming a diaphragm to transmit a vibration force of the voice coil 3 to the vibrator 8.

The resonance sounding loudspeaker in the embodiment can be applied to electronic equipment, such as a notebook computer, and the like, and is not unique.

The resonant sound horn in this embodiment comprises an outer housing 1 having a cavity for housing the various components. A magnetic circuit 2 is arranged in the outer housing 1, which has a fixed first magnetic field. The voice coil 3 is disposed within the outer case 1 and is capable of moving relative to the outer case 1, such as vibrating in a direction perpendicular to the magnetic circuit 2. This voice coil loudspeaker voice coil 3 links to each other with sound source equipment simultaneously for receive audio signal, the signal of telecommunication promptly, can produce the second magnetic field that changes when voice coil loudspeaker voice coil 3 receives the signal of telecommunication, this second magnetic field can produce resonance effect with first magnetic field interact, and voice coil loudspeaker voice coil 3 vibrates outer casing 1 under this resonance effect. Conduction piece 4 links to each other with voice coil 3 to can be external vibrating piece 8 that is used for forming the vibrating diaphragm, this vibrating piece 8 is towards the user, and conduction piece 4 receives can transmit vibration power to vibrating piece 8 after the vibration on, makes vibrating piece 8 vibrate, and causes the air vibration, and then produces sound, also promptly and then produces the sound wave. The user can hear the sound output from the speaker after receiving the sound wave. The vibrating member 8 in this embodiment is not particularly limited, and may be a device for mounting and carrying a resonant sound-emitting horn, such as a housing of the device, which may vibrate accordingly based on the vibration force conducted by the conducting member 4.

Based on the disclosure of above-mentioned embodiment can know, the beneficial effect that this embodiment possesses includes that resonance sound production loudspeaker overall structure is simple, easily realizes, and the small and exquisite thin of size can not occupy great installation space, sets up in any position all can. In addition, this resonance sound production loudspeaker is through setting up magnetic circuit 2, voice coil loudspeaker voice coil 3 and conduction piece 4 can make voice coil loudspeaker voice coil 3 receive behind the audio signal can produce magnetic field effect with magnetic circuit 2, and then cause the vibration, this vibration accessible conduction piece 4 conduction is to external vibrating piece 8 on conduction piece 4, make its vibration and then the sound production, and this vibrating piece 8 is towards user's setting, consequently when vibrating piece 8 drives the air vibration sound production, can not produce the too strong phenomenon of high frequency directive property, and the sound wave can directly be received by the user, the audio that the user felt has been ensured better. That is, resonance sound production loudspeaker in this embodiment can not set up alone, but can set up with an attached state based on existing equipment environment, contains towards the user all the time in the equipment environment promptly, and can produce the part of vibration, vibrating piece 8 promptly, so alright with setting up vibration sound production loudspeaker on this part, installation, positioning process are simple and convenient and quick, can effectively ensure the audio that the user felt simultaneously.

Further, as shown in the figure, the vibration sound-producing speaker in this embodiment further includes a limiting member 5, where the limiting member 5 is at least connected to the voice coil 3 and the outer casing 1, and can be linked with the voice coil 3 to limit the vibration direction of the voice coil 3 to be the direction perpendicular to the magnetic circuit 2 in real time.

That is, one end of the limiting member 5 is fixed, and the other end is connected to the voice coil 3 so as to be capable of linking with the voice coil 3, and meanwhile, the limiting member 5 is structurally limited, that is, one end is fixed, so that the motion direction of the limiting member 5 can only be the direction perpendicular to the magnetic circuit 2, and therefore, based on the limiting member 5, the vibration direction of the voice coil 3 can be effectively limited, and the phenomenon that the voice coil is inclined in the direction parallel to the magnetic circuit 2 to influence the generation of sound waves and make the formed sound have a sound variation phenomenon and the like can be avoided.

Optionally, the outer housing 1 has at least a slot body, such as a circular bottom slot, a rectangular groove, etc., but preferably matches the outer shape of the magnetic circuit 2 to facilitate the installation of the magnetic circuit 2. Alternatively, the outer shell 1 may be an annular frame, i.e. the middle part is through, i.e. the groove body continues to extend until it penetrates the outer shell 1.

The magnetic circuit 2 is installed in the slot or in the hollow portion of the outer housing 1, and may be specifically bonded by using an adhesive, may be connected by a structure such as a buckle, and may be connected by interference, and the like.

Further, the magnetic circuit 2 in this embodiment includes a magnetic member, and the voice coil 3 is suspended in the slot and surrounds at least a portion of the magnetic member, such as only the upper half portion, or the whole magnetic member. Moreover, a gap is formed between the voice coil 3 and the magnetic member, that is, the voice coil 3 is not in contact with the magnetic member, and gaps are formed in all directions.

As shown in fig. 3, the magnetic circuit 2 in the present embodiment further includes a metal casing 7, the metal casing 7 is connected to the tank body, and the metal casing 7 has a receiving groove, for example, the metal casing 7 is structurally matched with the tank body, such as a circular bottom groove, a rectangular groove, etc. The magnetic member is disposed in the accommodating groove of the metal casing 7, fixed to the bottom of the accommodating groove, and forms an annular space with the side wall, and the voice coil 3 is disposed in the annular space.

Optionally, the magnetic member includes a magnet block 6 and a metal plate disposed on a side of the magnet block 6 facing the conductive member 4, the magnet in this embodiment is cylindrical, but may have other structures, and the height of the magnet block 6 is also variable and may be specifically set according to the volume range of the horn.

With reference to fig. 1 and 2, the limiting member 5 is annular, an outer ring of the limiting member is fixed on the outer casing 1, one side of the inner ring facing the magnetic circuit 2 is connected to the voice coil 3, and the conducting member 4 is connected to one side of the inner ring of the limiting member 5 away from the magnetic circuit 2, so as to be connected to the voice coil 3 through the limiting member 5. That is, both sides of the stopper 5 are connected to the voice coil 3 and the conductor 4, respectively, and are formed integrally.

Specifically, the limiting member 5 in this embodiment includes an outer frame, an inner frame, and a plurality of elastic arms connecting the outer frame and the inner frame, where the number of the elastic arms is not limited, and the elastic arms may be linear, curved, or folded. The moving direction of the elastic arm needs to be perpendicular to the magnetic circuit 2, so that the vibration direction of the voice coil 3 can be successfully limited. During installation, the outer frame can be fixed on the outer casing 1, and the two sides of the inner frame are respectively connected with the voice coil 3 and the conduction piece 4. The conductor 4 may be a plate or other structural component, and has a target distance from the magnetic circuit 2, which is not fixed as long as it is determined that the vibration is not obstructed, that is, the distance satisfies a space required for the vibration. The material of the conductive member 4 is not limited, and may be a metal member or a non-metal member, such as plastic.

Another embodiment of the present invention further provides an electronic device, including the resonant sound-emitting speaker according to any one of the above embodiments.

Optionally, the electronic device further includes a touch panel and an audio source module, for example, the electronic device is a notebook computer or other devices having a touch panel (i.e., a touch pad), and the resonant sound-producing speaker is connected to the touch panel and the audio source module, because the touch panel is disposed toward a user for the convenience of using, and the touch panel is not a completely fixed structure, but can move relative to the device, the touch panel can generate vibration. Through with the fixed resonance sound production loudspeaker that sets up of one side in the touch pad orientation equipment in this embodiment, if can be fixed etc. through the form of bonding, link to each other resonance sound production loudspeaker with the sound source module simultaneously for sound production loudspeaker alright when receiving audio signal with produce vibration, and with vibration conduction to touch pad, and then cause the touch pad vibration, send the sound wave, the user can hear the sound after receiving this sound wave.

For example, as shown in fig. 4, when an audio signal is emitted from a system in the electronic device, the audio signal may be processed and amplified by an audio codec and then transmitted to the resonant sound speaker through a line. The loudspeaker begin to vibrate after receiving audio signal to utilize the conduction board conduction to the touch pad with the vibration, the touch pad drives the air vibration after the vibration, and then produces the sound wave, and the human ear experiences the sound wave, also experiences the air vibration after, alright hear the sound.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. A resonant acoustic horn, comprising:

an outer housing;

a magnetic circuit mounted on the outer case;

and the conduction piece is connected with the voice coil and can be externally connected with a vibration piece facing a user so as to conduct the vibration force of the voice coil to the vibration piece.

2. The resonant sound production horn of claim 1, further comprising a limiting member, wherein the limiting member is connected to at least the voice coil and the outer housing, and can be linked to the voice coil to limit the vibration direction of the voice coil to be perpendicular to the magnetic circuit in real time.

3. The resonant sound production horn of claim 1 or 2, wherein the outer shell has at least a slot, the magnetic circuit is mounted in the slot, the magnetic circuit comprises a magnetic member, the voice coil is suspended in the slot and surrounds at least a portion of the magnetic member, and a gap is provided between the voice coil and the magnetic member.

4. The resonant acoustic horn of claim 3, wherein the magnetic circuit further comprises a metal housing, the metal housing is connected to the tank, the metal housing has a receiving groove, the magnetic member is disposed in the receiving groove and forms an annular space with a sidewall of the receiving groove, and the voice coil is disposed in the annular space.

5. The resonant acoustic horn of claim 2, wherein the retaining member is annular, the outer ring of the retaining member is fixed to the outer housing, the inner ring is connected to the voice coil on a side facing the magnetic circuit, and the conducting member is connected to the inner ring on a side facing away from the magnetic circuit so as to be connected to the voice coil through the retaining member.

6. The resonant sound horn of claim 5, wherein the stop member comprises an outer frame, an inner frame, and a plurality of resilient arms connecting the outer frame and the inner frame, the resilient arms moving in a direction perpendicular to the magnetic circuit, the outer frame being fixed to the outer housing, and the inner frame being connected to the voice coil and the conductive member.

7. The resonant acoustic horn of claim 1, wherein the conductive element is spaced from the magnetic circuit by a target distance.

8. An electronic device comprising a resonant sound emitting horn according to any one of claims 1-7.

9. The electronic device of claim 8, further comprising a touch panel and an audio source module, wherein the resonant sound speaker is connected to the touch panel and the audio source module.