CN111246351B

CN111246351B - Loudspeaker and electronic equipment with same

Info

Publication number: CN111246351B
Application number: CN202010071817.3A
Authority: CN
Inventors: 韩菲菲; 安康; 杨征; 朱宗霞; 舒开发; 吴劼; 李钉云
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2019-11-28
Filing date: 2020-01-21
Publication date: 2021-06-01
Anticipated expiration: 2040-01-21
Also published as: CN111246351A

Abstract

The invention discloses a loudspeaker and electronic equipment with the loudspeaker, wherein the loudspeaker comprises a housing, a loudspeaker single body and a reflecting cone arranged outside the housing, the housing is provided with a cavity, the loudspeaker single body is arranged in the cavity, the reflecting cone is provided with a gap for communicating the cavity with the outside of the reflecting cone, and sound emitted by the loudspeaker single body is transmitted to the side direction of the cavity through the reflecting cone. Set up the gap on the reflection cone, the gap is with cavity and the outside intercommunication of reflection cone, and the sound that the loudspeaker monomer sent is propagated to the side direction of cavity through the reflection cone, realizes the sound of inclining, because the gap is with cavity and outside intercommunication, when sound was sent by the loudspeaker monomer, can adjust the frequency response curve under the combined action of gap and cavity for the frequency response curve becomes level and smooth, and then promotes the audibility. Above-mentioned speaker avoids adopting the bottom plate that the structure is complicated, saves the material, and simple to operate.

Description

Loudspeaker and electronic equipment with same

Technical Field

The invention relates to the technical field of electroacoustic transducer devices, in particular to a loudspeaker and electronic equipment with the loudspeaker.

Background

As is well known, a loudspeaker, also called a "horn", is a relatively common electroacoustic transducer device, which is widely used in, for example, audio or mobile communication equipment.

The loudspeaker with the reflecting cone generally comprises a loudspeaker single body, a housing, the reflecting cone and the like, wherein the housing is provided with a cavity, the cavity is of a semi-closed structure, the bottom of the cavity is not closed, the loudspeaker single body is connected with the housing, and sound emitted by the loudspeaker single body can be transmitted to the outer side of the housing through the bottom of the cavity; the reflecting cone is arranged below the sounding part; the reflecting cone is provided with a cavity, and the interior of the cavity is hollow; the reflection awl includes protruding hunch portion and extension, and the extension is located protruding hunch portion around, and protruding hunch portion orientation is protruding near the direction of housing, has the clearance between extension and the housing for supply the sound to propagate, the sound that the loudspeaker monomer sent is propagated to the extension through protruding hunch portion, and propagates through the bottom outside of extension orientation housing, realizes the pronunciation function.

With the loudspeaker arranged in this way, high-frequency peaks are generated in the sound transmission process, so that the hearing sense is influenced. In view of the above, how to optimize the sense of hearing is a technical problem that needs to be considered by those skilled in the art.

Disclosure of Invention

The invention aims to provide a loudspeaker and electronic equipment with the loudspeaker, which can optimize the auditory sensation and improve the auditory sensation.

In order to achieve the purpose, the invention provides the following technical scheme:

a loudspeaker comprises a housing, a loudspeaker unit and a reflecting cone arranged outside the housing, wherein the housing is provided with a cavity, the loudspeaker unit is arranged in the cavity, the loudspeaker is characterized in that,

the reflection cone is provided with a cavity, the reflection cone is provided with a gap for communicating the cavity with the outside of the reflection cone, and the sound emitted by the horn single body is transmitted to the side direction of the cavity through the reflection cone.

Preferably, the reflection cone is of an integrated structure with the bottom and the side, a closed cavity is formed between the reflection cone and the reflection cone, the top of the reflection cone faces the radiation surface of the horn unit, and the top of the reflection cone is provided with the gap.

Preferably, the reflection cone comprises several parts assembled to form the chamber.

Preferably, the reflection cone comprises an upper shell and a lower shell, the upper shell is connected with the lower shell, a closed cavity is formed between the upper shell and the lower shell, and the gap is formed in the upper shell.

Preferably, the upper end face of the lower casing has a mounting structure, and the upper casing has an adapting structure for being matched with the mounting structure.

Preferably, the bottom of the reflection cone is connected with a gasket, the gasket is provided with a through hole, and the through hole is communicated with the cavity; when the lower end face of the gasket is attached to the placing face, the cavity and the gasket form a resonant cavity.

Preferably, the upper end face of the gasket has a mounting portion, and the reflection cone has an adaptation portion for cooperating with the mounting portion.

Preferably, the reflecting cone is provided with a supporting leg for connecting the housing, in a connecting state, a cavity is formed between the radiation surface of the horn single body and the reflecting cone, and the center line of the cavity is collinear with the center line of the radiation surface of the horn single body;

or the reflecting cone and the housing are arranged in a split mode, and the reflecting cone is provided with an alignment structure used for enabling the center line of the cavity and the center line of the radiation surface of the loudspeaker single body to be collinear.

Preferably, the central line of the gap is coaxial with the central line of the chamber, and the number of the gap is several.

An electronic device comprising the speaker of any of the above.

The invention also provides electronic equipment comprising the loudspeaker.

Optionally, the electronic device is specifically a sound or a mobile communication device.

The application provides a speaker sets up the gap on the reflection cone, and the gap is with cavity and outside intercommunication, and the sound that the loudspeaker monomer sent is propagated to the side direction of cavity through the reflection cone, realizes the sound of inclining out, because the gap is with cavity and outside intercommunication, when sound is sent by the loudspeaker monomer, can adjust the frequency response curve under the combined action of gap and cavity for the frequency response curve becomes level and smooth, and then promotes the audibility.

The invention also provides an electronic device with the loudspeaker, which has the beneficial effects, and the details are not repeated herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a cross-sectional view of a speaker according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a reflection cone and a spacer of a speaker according to an embodiment of the present invention;

fig. 3 is a combined cross-sectional view of a reflection cone and a spacer of a speaker according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of another combination of a reflection cone and a spacer of a speaker according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of another speaker in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of the reflection cone of FIG. 5;

FIG. 7 is a cross-sectional view of FIG. 6;

fig. 8 is a sectional view of the speaker unit and the reflection cone in an exploded state;

fig. 9 is a sectional view showing a combined state of a speaker unit and a reflection cone;

FIG. 10 is a schematic view of reflecting cones disposed on two sides of the housing according to an embodiment of the present invention;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is a partial schematic view of FIG. 11;

FIG. 13 is a front cross-sectional view of FIG. 11;

fig. 14 is a sectional view of a split reflecting cone.

Wherein:

the loudspeaker comprises a housing 1, a cavity 11, a loudspeaker single body 2, a reflecting cone 3, a gap 31, a cavity 32, an upper shell 33, a lower shell 34, support legs 35, a gasket 4, a through hole 41 and a mounting part 42.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The loudspeaker provided by the embodiment of the invention comprises a housing 1, a loudspeaker single body 2 and a reflecting cone 3, wherein the housing 1 is provided with a cavity 11, and the loudspeaker single body 2 is arranged in the cavity 11; taking the orientation shown in the attached drawing 1 in the specification as an example, the reflection cone 3 is arranged below the housing 1, the housing 1 can be semi-closed, the speaker unit 2 and the housing 1 can be connected by a fastener such as a bolt, and the sound emitted by the speaker unit 2 can be transmitted out of the housing 1 through the bottom of the housing 1. There is a certain gap between the reflection cone 3 and the housing 1, and the reflection cone 3 and the housing 1 can be connected by using a member such as a bolt.

The sound emitted by the horn unit 2 can be transmitted out of the outer side of the housing 1 through the bottom of the housing 1, and then the sound is transmitted to the outer side of the bottom of the housing 1 under the action of the reflection cone 3, so that the transmission direction of the sound is changed, and the sound is emitted out of the housing 1 laterally. It can be seen that the reflecting cone 3 has two functions, one of which is to change the direction of propagation of the sound and the other of which is to direct the sound that has changed direction to the outside of the bottom of the enclosure 1.

The reflection cone 3 has a cavity 32, the reflection cone 3 has a gap 31 for communicating the cavity 32 with the outside of the reflection cone 3, and when the reflection cone 3 is disposed outside the speaker unit 2, a cavity structure formed by the speaker unit 2 and the reflection cone 3 is formed. The sound emitted from the horn unit 2 is transmitted to the side of the cavity 11 through the reflecting cone 3.

The gap 31 of the reflection cone 3 and the cavity 32 of the reflection cone 3 can form a resonant cavity, and the resonant cavity is communicated with the outside of the reflection cone through the gap, so that the frequency response curve can be adjusted, and the hearing effect can be improved.

The slit 31 in this application refers to a hole provided on the reflection cone 3, and a long and narrow hole is formed on the surface of the reflection cone 3. Referring to fig. 2 and 6, the slit 31 may be an annular hole, or a hole in an annular state formed by a plurality of arc-shaped holes or kidney-shaped holes, which is different from a common circular hole. The gap 31 has two functions, one is convenient for adjusting the position and the gap width of the gap so as to adjust the damping to obtain proper damping, the resonance frequency point of the reflection cone is consistent with the front cavity resonance frequency point of the integral structure of the loudspeaker, so that a high-frequency peak is eliminated, a better acoustic effect can be realized, and the other is convenient to manufacture and can enable the design and the processing to be more accurate. On the basis of the above-mentioned embodiments, the structure of the reflection cone 3 may be a one-piece structure. Specifically, the reflecting cone 3 is of an integrated structure with the bottom and the side, a closed cavity is formed between the bottom and the side, the top of the reflecting cone 3 faces the radiation surface of the horn unit 2, and a gap 31 is formed at the top of the reflecting cone 3.

Specifically, referring to fig. 5, 6, 7, 8 and 9, the reflection cone 3 is an integrated structure, a cavity is disposed inside the reflection cone 3, a gap 31 for communicating the cavity with the outside is disposed at the top of the reflection cone 3, the formed reflection cone 3 is an integrated structure, the cavity is a closed structure, the cavity 32 is communicated with the outside of the reflection cone 3 through the gap 31, the gap 31 faces one side of the sound emitted by the speaker unit 2 and is located at a cavity position formed by the reflection cone 3 and the radiation surface of the speaker unit 2, the reflection cone 3 is an integrated cavity structure, so that a resonant cavity can be formed only by disposing the gap 31 of the reflection cone 3 and the cavity 32 of the reflection cone 3, and the resonant cavity is communicated with the outside of the reflection cone through the gap, thereby achieving the effects of adjusting the frequency response curve and improving the listening feeling.

The integral structure is adopted, so that the processing of the reflecting cone is convenient, and when the reflecting cone is used, the reflecting cone 3 does not need to be matched with other structures to form a cavity, so that the complexity of operation is avoided.

Optionally, the gap 31 includes a plurality of gaps, specifically, two arc-shaped gaps, or three or more arc-shaped gaps, and adjacent gaps are arranged at intervals to form a discontinuous annular structure.

On the basis of the first embodiment, the reflection cone 3 may also be an assembly, in particular, the reflection cone 3 comprises several parts, which are assembled to form the cavity 32.

In a specific embodiment, the components forming the reflection cone 3 may include a left splicing piece and a right splicing piece, both of which have inner cavities, and after splicing, the two inner cavities form the cavity 32, and the cavity 32 has a gap 31. The left splicing piece and the right splicing piece are identical in structure and can facilitate the machining process and the installation process.

In a specific embodiment, referring to fig. 14, the reflection cone 3 includes an upper shell 33 and a lower shell 34, the upper shell 33 and the lower shell 34 are connected to form a closed cavity 32 therebetween, and a slit 31 for communicating the cavity 32 and the exterior of the reflection cone 3 is disposed on the upper shell 33.

The upper and

lower shells

33, 34 may be joined to form the chamber 32, or one may be capped over the other to form the chamber 32.

In a specific embodiment, the upper shell 33 and the lower shell 34 may be connected by a snap connection, and the two are fixed by the snap connection, or fixed relatively by other matching methods such as adhesion, magnetic attraction, and the like. Specifically, the upper end face of the lower case 34 has a mounting structure, and the upper case 33 has an adapting structure to be fitted with the mounting structure.

Alternatively, a sealing structure is provided between the upper case 33 and the lower case 34 to form a sealing connection therebetween.

Alternatively, the mounting structure and the adapting structure may be magnets or magnetic components.

The reflecting cones 3 in the above embodiments are all closed structures, and have slits 31 only at the upper part so as to communicate the cavity 32 and the outside of the reflecting cone 3.

In another specific embodiment, the reflecting cone 3 is a structure with a slit 31 at the upper part and an open cavity 32. In contrast to the integral and assembled reflection cone 3, the reflection cone 3 with the cavity 32 being open in the present embodiment needs to form a resonant cavity by cooperating with the placement surface.

As shown in fig. 2 to 4, the reflection cone 3 has a cavity 32, the top of the reflection cone 3 is further provided with a slit 31, and the slit 31 is communicated with the cavity 32. The bottom of the reflecting cone 3 is connected with a gasket 4, the gasket 4 is provided with a through hole 41, and the through hole 41 is communicated with the cavity 32 of the reflecting cone 3; when the lower end face of the gasket 4 is attached to the placing face, the cavity 32 and the gasket 4 form a resonant cavity, so that the resonant cavity is communicated with the outside of the reflection cone through the gap 31, and when sound is transmitted to the outer side of the bottom of the housing 1, the effect of adjusting a frequency response curve and improving the hearing can be achieved through the special structure of the resonant cavity. Obviously, the lower surface of gasket 4 should with place the face laminating, just can form the resonant cavity, from this certain material has been saved in gasket 4's setting, avoids the base that the structure is complicated among the prior art. For the specific arrangement of the reflecting cones 3 and the spacers 4, reference can be made to the numerous ways known in the art, and only a limited number of examples are given herein.

Referring to the description and fig. 2 to 4, the upper end surface of the gasket 4 has a mounting portion 42, the reflection cone 3 has an adapting portion, and the adapting portion can be matched with the mounting portion 42 to realize the connection between the reflection cone 3 and the gasket 4, it is obvious that the specific shapes of the mounting portion 42 and the adapting portion can be determined according to actual needs, for example, the mounting portion 42 can be a protruding point, the adapting portion should be a groove, the mounting portion 42 can also be a magnet, and the adapting portion should also be a magnet.

Herein, the mounting portion 42 may be provided as a protrusion extending along a direction close to the reflection cone 3, the protrusion may be a triangle, a rectangle or other irregular shape, and referring to fig. 2 and 3 in the specification, the cross section of the protrusion is a rectangle, the number of the protrusions may be multiple, and the multiple protrusions may be uniformly distributed on the upper end surface of the gasket 4.

The gasket 4 can be specifically an elastic gasket, and the gasket 4 can be made of nitrile rubber according to the material of the gasket 4, and is similar to a sucker in the prior art, and the lower end face of the gasket 4 can be adsorbed on a placing face; meanwhile, the mounting part 42 of the gasket 4 has certain elasticity and can be tightly attached to the adapting part, so that the reflecting cone 3 and the gasket 4 are reliably connected; of course, the gasket 4 may be made of other materials.

For the elastic gasket, the shape of the mounting portion 42 may be more selected, as shown in fig. 4 in the specification, the cross section of the mounting portion 42 is specifically a three-layer structure, the size of the middle layer is smaller than the sizes of the other two layers, and the size of the lower layer is larger than the sizes of the other two layers. The advantage of so setting up is that reflection awl 3 and gasket 4 are both reliable in the connection of vertical direction, and both are difficult for droing, help promoting the life of speaker. Besides, the cross section of the mounting portion 42 may have other shapes, so long as the two ends of the mounting portion are larger and the middle of the mounting portion is smaller in the vertical direction, which will not be described in detail herein.

Referring to the description of fig. 3 and 4, the diameter of the through hole 41 is equal to the diameter of the bottom opening of the chamber 32, and the through hole 41 and the bottom opening of the chamber 32 are coaxially arranged. That is, the inner side edge of the through hole 41 and the inner side edge of the bottom opening of the chamber 32 are collinear in the vertical direction, thereby avoiding damage to the overall structure of the chamber 32 and ensuring structural stability of the speaker.

Compared with the background art, in the loudspeaker provided by the embodiment, the reflecting cone is provided with the gap communicated with the outside, the gasket is arranged below the reflecting cone instead of the base, the gasket is provided with the through hole, and the through hole is communicated with the cavity of the reflecting cone; the lower terminal surface of gasket with place the face laminating, so, place face, cavity and gasket three and can form the resonant cavity, the resonant cavity passes through gap and reflects the outside intercommunication of awl, and then reaches the regulation frequency response curve, promote the effect of listening sensation. It can be seen that the through holes formed in the gasket save certain materials, the weight of the gasket is reduced, the connection mode between the gasket and the reflecting cone is also simple, the connection mode can be realized by bonding or other modes, the cost is reduced, and the competitiveness of the product is enhanced.

Optionally, the position, width and length of the slit 31 on the surface of the reflection cone 3 may be adjusted to adapt to different practical situations, so as to adjust the damping size and adjust the resonance frequency point of the reflection cone to be consistent with the resonance frequency point of the front cavity of the overall structure of the speaker, thereby eliminating the high frequency peak.

Optionally, the volume of the cavity of the reflection cone 3 may also be adjusted according to actual conditions, and the volume is used to adjust the resonance frequency point of the reflection cone to be consistent with the resonance frequency point of the front cavity of the overall structure of the speaker, so as to eliminate a high-frequency peak.

In the loudspeaker provided by the application, when parameters such as the cavity volume of the resonant reflecting cone 3, the position of the gap 31, the thickness of the gap 31 and the like are fixed, the resonant frequency of the resonant reflecting cone 3 is increased due to the increase of the width of the gap 31, and conversely, the resonant frequency of the reflecting cone 3 is decreased due to the decrease of the width of the gap 31.

When the size of the gap of the reflection cone 3 is fixed, the increase of the cavity volume will decrease the resonance frequency of the reflection cone 3, and conversely, the decrease of the cavity volume will increase the resonance frequency of the reflection cone 3.

The gap 31 affects the damping during the sound wave propagation, when the thickness of the gap 31, namely the position and the size of the gap 31 are fixed, the smaller the gap width and the damping, the deeper the wave trough formed on the frequency response curve of the whole structure of the loudspeaker; the smaller the gap width, the greater the damping and the shallower the valleys formed in the frequency response curve of the overall speaker structure.

On the basis of any one of the above embodiments, the reflecting cone 3 is provided with supporting legs 35 for connecting the housing 1, in a connected state, a cavity is formed between the radiation surface of the horn unit 2 and the reflecting cone 3, and the center line of the cavity 32 is collinear with the center line of the radiation surface of the horn unit 2.

Referring to fig. 7, the reflecting cone 3 is provided with support legs 35, and the support legs 35 are provided with a snap-fit or other connection part for connecting to the housing 1. Correspondingly, the housing 1 is also provided with a structure for matching the supporting legs 35 so as to be accurately connected with the supporting legs 35, and the supporting legs 35 are used for stabilizing the position relation between the reflecting cone 3 and the horn unit 2 and ensuring that the positions of the reflecting cone 3 and the horn unit 2 are the use positions with the coincident central lines.

The center line of the cavity 32 and the center line of the radiation surface of the horn unit 2 are kept collinear, the silencer effect of the reflecting cone 3 can be stabilized, high-frequency peaks are eliminated, and a frequency response curve is smoothed, so that the hearing sense is improved.

In the above embodiment, the reflection cone 3 and the housing 1 are connected by the support legs 35, and are connected in use. Of course, they may not be connected. In another embodiment, the reflection cone 3 is provided separately from the housing 1, and the reflection cone 3 is provided with an alignment structure for making the center line of the cavity 32 and the center line of the radiation surface of the horn unit 2 collinear.

It should be noted that one of the reflection cone 3 and the housing 1 is provided with a positioning hole, and the other is provided with a positioning piece, so that the two are aligned in angle and position by means of insertion.

Or, set up position sensor in one of reflection awl 3 and housing 1, another sets up induction system, for example infrared induction system to can adjust the position relation and the angular relation of the two, make the central line of cavity 32 and the central line collineation of the radiating surface of loudspeaker monomer 2, and then can promote the effect of reflection awl 3.

Specifically, the center line of the slit 31 is coaxial with the center line of the chamber 32, and the number of the slits 31 is several.

The electronic equipment with the loudspeaker provided by the invention comprises the loudspeaker described in the specific embodiment; other parts of the electronic device may be referred to in the art and will not be expanded upon herein. The electronic device may be a sound box or a mobile communication device, and the mobile communication device may be a mobile phone, a bracelet, or a smart watch.

The speaker and the electronic device having the speaker provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A loudspeaker comprises a housing (1), a loudspeaker single body (2) and a reflecting cone (3) arranged on the outer side of the housing (1), wherein the housing (1) is provided with a cavity (11), the loudspeaker single body (2) is arranged in the cavity (11),

the reflecting cone (3) is provided with a cavity (32), the reflecting cone (3) is provided with a gap (31) for communicating the cavity (32) with the outside of the reflecting cone (3), and the sound emitted by the horn unit (2) is transmitted to the lateral side of the cavity (11) through the reflecting cone (3);

the bottom of the reflecting cone (3) is connected with a gasket (4), the gasket (4) is provided with a through hole (41), and the through hole (41) is communicated with the cavity (32); when the lower end face of the gasket (4) is attached to the placing face, the cavity (32) and the gasket (4) form a resonant cavity.

2. A loudspeaker according to claim 1, wherein the reflecting cone (3) is of a bottom and side integrated structure, and the closed chamber (32) is formed therebetween, the top of the reflecting cone (3) faces the radiation surface of the horn unit (2), and the top of the reflecting cone (3) is provided with the gap (31).

3. A loudspeaker according to claim 1, characterized in that the reflex cone (3) comprises several parts which are assembled to form the chamber (32).

4. A loudspeaker according to claim 3, wherein the reflex cone (3) comprises an upper shell (33) and a lower shell (34), the upper shell (33) and the lower shell (34) being connected with the closed chamber (32) formed therebetween, the slit (31) being provided in the upper shell (33).

5. A loudspeaker according to claim 4, wherein the upper end face of the lower shell (34) has a mounting structure and the upper shell (33) has an adapting structure to cooperate with the mounting structure.

6. A loudspeaker according to claim 1, wherein the upper end face of the spacer (4) has a mounting portion (42), and the reflex cone (3) has an adaptation portion for cooperating with the mounting portion (42).

7. A loudspeaker according to any one of claims 1 to 6, wherein the reflecting cone (3) is provided with supporting legs for connecting the enclosure (1), and in the connected state, a cavity is formed between the radiation surface of the horn unit (2) and the reflecting cone (3), and the center line of the cavity (32) is collinear with the center line of the radiation surface of the horn unit (2);

or the reflection cone (3) and the housing (1) are arranged in a split mode, and the reflection cone (3) is provided with an alignment structure used for enabling the center line of the cavity (32) and the center line of the radiation surface of the horn unit (2) to be collinear.

8. A loudspeaker according to claim 7, characterized in that the centre line of the slot (31) is coaxial with the centre line of the chamber (32), and the number of slots (31) is several.

9. An electronic device, characterized in that it comprises a loudspeaker according to any one of claims 1-8.