CN220874674U

CN220874674U - Loudspeaker box mask and loudspeaker box

Info

Publication number: CN220874674U
Application number: CN202322536883.5U
Authority: CN
Inventors: 林海彬
Original assignee: Guangdong Pulaisheng Performance Equipment Co ltd
Current assignee: Guangdong Pulaisheng Performance Equipment Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-30
Anticipated expiration: 2033-09-19

Abstract

The utility model relates to the technical field of sound boxes, in particular to a sound box mask and a three-dimensional sound box, wherein the sound box mask comprises an outer net layer, the outer net layer comprises a first sound transmission part and two second sound transmission parts positioned at two sides of the first sound transmission part, a plurality of sound transmission through holes are formed in each of the first sound transmission part and the second sound transmission part, and the perforation rate of the first sound transmission part is larger than the perforation rate of the second sound transmission part. The utility model has the advantages and positive effects that: the first sound transmission part and the second sound transmission part are arranged on the outer net layer of the loudspeaker box face mask, so that the first sound transmission part in the middle has higher penetration rate, the sound transmission effect is better, the second sound transmission parts on two sides have lower penetration rate, and the protection strength is better, so that the loudspeaker box face mask has better sound transmission effect and protection strength.

Description

Loudspeaker box mask and loudspeaker box

Technical Field

The utility model relates to the technical field of sound boxes, in particular to a sound box mask and a sound box.

Background

Sound boxes are an extremely important component of sound systems, which are often used to convert audio electrical energy into corresponding acoustic energy and radiate it into space. The existing sound box is generally provided with a sound box cover for protecting devices such as a loudspeaker in the sound box. In order to transmit sound, dense sound transmission through holes are formed in the loudspeaker box face cover. However, if the perforation rate of the sound box mask is too high, the strength of the sound box mask becomes low, and the protection effect on devices such as a loudspeaker is poor; if the perforation rate of the speaker mask is too low, the sound transmission effect is poor, and thus the speaker mask becomes a technical problem for those skilled in the art.

Disclosure of utility model

The utility model aims to solve the technical problem that a sound box mask in the prior art cannot simultaneously give consideration to the protection strength and the sound transmission rate, and provides a sound box mask with good sound transmission effect and high protection strength and a sound box with the sound box mask.

In order to solve the technical problems, the utility model provides the following technical scheme:

The utility model provides a sound box mask, which comprises an outer net layer, wherein the outer net layer adopts WCT (Wavefront Coupling Technology) wave-front coupling technology and comprises a first sound transmission part and two second sound transmission parts positioned at two sides of the first sound transmission part, a plurality of sound transmission through holes are formed in the first sound transmission part and the second sound transmission part, and the perforation rate of the first sound transmission part is larger than the perforation rate of the second sound transmission part.

Further, the penetration rate of the first sound-transmitting part is 85-95%, and the penetration rate of the second sound-transmitting part is 68-80%; or the penetration rate of the first sound-transmitting part is 90-93%, and the penetration rate of the second sound-transmitting part is 72-78%.

Further, the sound box face mask further comprises an inner net layer, the inner net layer is located on the inner side of the outer net layer, the outer net layer is made of metal materials, the inner net layer is made of plastic materials, inner layer through holes are formed in the inner net layer, and the aperture of each inner layer through hole is smaller than that of each sound transmission through hole.

Further, the sound transmission through holes in the first sound transmission part are first sound transmission through holes, the sound transmission through holes in the second sound transmission part are second sound transmission through holes, and the first sound transmission through holes and the second sound transmission through holes are hexagonal and distributed in a honeycomb shape.

Further, the edge of outer stratum reticulare is the rectangle, first sound transmission through-hole, second sound transmission through-hole all have two be on a parallel with the length direction of outer stratum reticulare and the longitudinal limit that length equals and four with the length direction of outer stratum reticulare and the length direction are all nonparallel and the lateral limit that length equals, the length of the lateral limit of first sound transmission through-hole equals the length of the lateral limit of second sound transmission through-hole, the length of the longitudinal limit of first sound transmission through-hole is greater than the length of the longitudinal limit of second sound transmission through-hole.

Further, the ratio of the length of the longitudinal edge of the first sound-transmitting through hole to the length of the longitudinal edge of the second sound-transmitting through hole is 2-5.

Further, the ratio of the area of the first sound-transmitting portion to the area of each second sound-transmitting portion is 1.2-3.

The embodiment of the utility model also provides a sound box, which comprises a machine body and the sound box mask in any embodiment, wherein a high-pitched area and two low-pitched areas positioned at two sides of the high-pitched area are arranged on the machine body, the sound box mask is fixed on the front end surface of the machine body, the first sound transmission part corresponds to the high-pitched area, and the two second sound transmission parts correspond to the two low-pitched areas respectively.

Further, the high-pitch region comprises a high-pitch loudspeaker and a horn connected with the high-pitch loudspeaker, the horn faces the first sound transmission part, and the low-pitch region comprises a low-pitch loudspeaker which sounds towards the second sound transmission part; or adopt DPR (Double Perforation Rate) two perforation rate technical design, make the high pitch district include the tweeter and with the clarion that the tweeter is connected, the clarion orientation first sound transmission portion, the low pitch district includes woofer and sound guide hole, and the sound guide hole is located between woofer and the audio amplifier face guard, and the export of sound guide hole is oriented second sound transmission portion, and the sound guide hole is used for leading the sound of woofer to second sound transmission portion.

Further, a containing cavity and a supporting bracket rotatably arranged in the containing cavity are arranged in the machine body, the supporting bracket is contained in the containing cavity in a first state, and extends out of the machine body in a second state so as to support the machine body and adjust the direction of the machine body, and the second state is FMM (Floor Monitor Mode) technology monitoring mode.

Compared with the prior art, the utility model has the advantages and positive effects that: the first sound transmission part and the second sound transmission part are arranged on the outer net layer of the loudspeaker box face mask, so that the first sound transmission part in the middle has higher penetration rate, the sound transmission effect is better, the second sound transmission parts on two sides have lower penetration rate, and the protection strength is better, so that the loudspeaker box face mask has better sound transmission effect and protection strength.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

Fig. 1 is a front view of a sound box according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a sound box according to an embodiment of the present utility model.

Fig. 3 is a cross-sectional view of a sound box according to another embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a speaker with a speaker mask removed according to the embodiment shown in fig. 3.

Fig. 5 is a top view of a sound box according to an embodiment of the present utility model.

Fig. 6 is a partial schematic view of an outer layer according to an embodiment of the present utility model.

Wherein, outer net layer 1, first sound transmission portion 11, second sound transmission portion 12, first sound transmission through-hole 2, second sound transmission through-hole 3, organism 4, high pitch district 41, bass district 42, tweeter 5, horn 6, woofer 7, sound guide hole 8, support frame 9.

Detailed Description

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an embodiment of the present utility model provides a sound box, which includes a body 4 and a sound box cover, wherein the sound box cover is fixed on a front end surface of the body 4.

The loudspeaker box mask comprises an outer net layer 1, wherein the outer net layer 1 comprises a first sound transmission part 11 and two second sound transmission parts 12 positioned on two sides of the first sound transmission part 11, and a plurality of sound transmission through holes are formed in the first sound transmission part 11 and the second sound transmission parts 12. The first sound-transmitting portion 11 has a larger penetration rate than the second sound-transmitting portion 12. Sound emitted from the loudspeaker inside the machine body 4 is transmitted outwards through the sound-transmitting through holes on the outer net layer 1. The penetration ratio is a ratio of a perforated area to a total area, for example, the penetration ratio of the first sound-transmitting portion 11 is a ratio of a perforated area of the first sound-transmitting portion 11 to a total area of the first sound-transmitting portion 11.

The first sound-transmitting part 11 in the middle has higher penetration rate, so that the sound-transmitting effect of the area is better, and the second sound-transmitting parts on the two sides have lower penetration rate, so that the strength of the sound-transmitting part is higher, and the sound box mask has better sound-transmitting effect and protection strength.

The body 4 is provided with a high-pitch region 41 and two low-pitch regions 42 positioned on two sides of the high-pitch region, the first sound-transmitting part 11 corresponds to the high-pitch region 41 in position, and the two second sound-transmitting parts 12 correspond to the two low-pitch regions 42 in position respectively. Specifically, the first sound-transmitting portion 11 and the second sound-transmitting portion 12 are located outside the high-pitched region 41 and the low-pitched region 42, respectively. Since the wavelength of the bass sound is long and the diffraction ability is strong, although the penetration rate of the second sound-transmitting portion 12 is lower than that of the first sound-transmitting portion 11, the sound-transmitting effect on the bass sound is still relatively good. The diffraction ability of the treble is relatively poor, so the treble region 41 corresponds to the position of the first sound-transmitting portion 11 with a high perforation rate, so as to ensure that the treble also has a good sound-transmitting effect.

In a preferred embodiment, the penetration rate of the first sound-transmitting portion 11 is 85 to 95% and the penetration rate of the second sound-transmitting portion 12 is 68 to 80%; or the penetration rate of the first sound-transmitting portion 11 is 90-93% and the penetration rate of the second sound-transmitting portion 12 is 72-78%. If the perforation ratio of the first sound-transmitting portion 11 and the second sound-transmitting portion 12 is too low, the sound-transmitting effects of the first and second sound-transmitting portions will be affected, and if the perforation ratio is too high, the strength of the outer mesh layer will be too low to play a protective role.

Referring to fig. 1, the sound-transmitting through holes on the first sound-transmitting portion are first sound-transmitting through holes 2, the sound-transmitting through holes on the second sound-transmitting portion are second sound-transmitting through holes 3, and the first sound-transmitting through holes 2 and the second sound-transmitting through holes 3 are hexagonal and distributed in a honeycomb shape. It should be noted that, the first through-hole 2 and the second through-hole 3 are both hexagons, and do not include the first through-hole 2 and the second through-hole 3 at the edge of the speaker cover, and the first through-hole 2 and the second through-hole 3 at the edge may be incomplete hexagons due to the positional relationship. Compared with round holes and square holes, the sound-transmitting through holes are arranged to be hexagonal holes distributed in a honeycomb shape, so that the maximum perforation rate can be obtained, and the sound-transmitting effect is better.

Referring to fig. 1, the edges of the outer mesh layer 1 are rectangular, the first and second sound-transmitting through holes 2 and 3 each have two longitudinal sides parallel to the length direction of the outer mesh layer 1 and equal in length, and four transverse sides non-parallel to the length direction and the width direction of the outer mesh layer 1 and equal in length, the length of the transverse side of the first sound-transmitting through hole 2 is equal to the length of the transverse side of the second sound-transmitting through hole 3, and the length of the longitudinal side of the first sound-transmitting through hole 2 is greater than the length of the longitudinal side of the second sound-transmitting through hole 3. The first and second through holes 2 and 3 refer to the first and second through holes 2 and 3 with complete shapes on the outer mesh layer 1, and not to the first and second through holes 2 and 3 with incomplete edges of the outer mesh layer 1. Since the length of the lateral side of the first sound-transmitting portion 11 is unchanged (equal to the length of the lateral side of the second sound-transmitting through hole 3) with respect to the second sound-transmitting portion 12, only the length of the longitudinal side of the first sound-transmitting through hole 2 is lengthened, so the strength of the first sound-transmitting portion 11 in the lateral direction is not reduced, so that the first sound-transmitting portion 11 still has a better strength. In the longitudinal direction, the two second sound-transmitting portions 12 with relatively low perforation rates are respectively positioned at two sides of the first sound-transmitting portion 11, so that the strength of the sound box cover in the longitudinal direction can be ensured. Furthermore, the outer net layer 1 can be produced by adopting a stamping process, so that the stamping process of the outer net layer 1 can be simpler. It is further preferred that the ratio of the length of the longitudinal edge of the first sound-transmitting through hole 2 to the length of the longitudinal edge of the second sound-transmitting through hole 3 is 2-5. If the ratio is too large, the strength of the first sound-transmitting portion 11 is insufficient, and if the ratio is too small, the sound-transmitting effect is relatively poor.

Referring to fig. 1, the outer edges of the first and second sound-transmitting portions 11 and 12 are rectangular, and the ratio of the area of the first sound-transmitting portion 11 to the area of each second sound-transmitting portion 12 is 1.2-3. If the ratio is too low, the area of the first sound-transmitting portion 11 is smaller, the sound transmission of the sound box will be affected, and if the ratio is too high, the area of the first sound-transmitting portion 11 is too large, the strength of the outer layer net 1 is lower, and the protection effect is poor. The areas of the two second sound-transmitting portions 12 may be equal or unequal.

The sound box face mask also comprises an inner net layer 2, wherein the inner net layer 2 is positioned on the inner side of the outer net layer 1 and is connected with the machine body 4, an inner layer through hole is formed in the inner net layer 2, the aperture of the inner layer through hole is smaller than that of the sound transmission through hole, and the inner layer through hole is used for preventing dust or water from entering the sound box. The outer mesh layer 1 may be made of a metal material and the inner mesh layer may be made of a plastic material.

Referring to fig. 2, the tweeter region 41 includes a tweeter 5 and a horn 6 connected to the tweeter 5, the horn 6 is disposed at a front end of the tweeter 5, so that sound more intensively penetrates through the first sound-transmitting through hole 2, each woofer region 42 is provided with a woofer 7, the woofer 7 is obliquely disposed in the body 4, and sounds toward the second sound-transmitting portion 12, so as to transmit the sound to the second sound-transmitting through hole 3. The woofer 7 is directed to sound toward the second sound transmitting portion 12, and the woofer 7 is not limited to face the second sound transmitting portion 12. In the present embodiment, the sound emission direction of the woofer 7 forms an acute angle with the outward normal direction of the second sound transmission portion 12, and the woofer 7 emits sound outward. The sound emission frequency of the woofer 7 is typically less than 500 hz, typically between 200-300 hz, and the sound emission frequency of the tweeter 5 is typically between 500-20000 hz.

Referring to fig. 3 and 4, in other embodiments, the tweeter region 41 includes a tweeter 5 and a horn 6 connected to the tweeter 5, and the horn 6 is disposed at the front end of the tweeter 5, so that the sound more intensively penetrates through the first sound-transmitting through hole 2. The bass region 42 is provided with a woofer 7 and a sound guiding hole 8, the sound guiding hole 8 is located between the woofer 7 and the speaker cover, and an outlet of the sound guiding hole 8 faces the second sound transmitting portion 12, and the sound guiding hole 8 is used for guiding sound of the woofer 7 to the second sound transmitting portion 12. The sound guiding hole 8 is located between the woofer 7 and the sound box mask, and defines the position relationship among the sound guiding hole 8, the woofer 7 and the sound box mask from the direction of sound transmission, that is, sound is emitted from the woofer 7 in sequence, passes through the sound guiding hole 8 and then passes through the sound box mask to be transmitted outwards. In the present embodiment, the woofer 7 does not sound forward, but sound to the cavity of the back face of the woofer 7, and then propagates through the sound guide hole 8 to the second sound transmission portion 12 in the cavity.

Referring to fig. 1 and 5, a housing cavity and a support bracket 9 rotatably disposed in the housing cavity are disposed in the machine body 4, specifically, the housing cavity and the support bracket 9 are disposed at upper and lower ends (from the perspective of fig. 1) of the machine body 4, and the support bracket 9 is rotatable relative to the machine body 4. The support bracket 9 is received in the receiving chamber in the first state and is folded and placed, at which time the machine body 4 is laid flat on the support surface. In the second state, the support bracket 9 extends out of the machine body 4, one end of the machine body 4 is supported on the support surface, and the other end is suspended on the support surface under the support of the support bracket 9, so that the orientation of the machine body 4 is adjusted.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. The utility model provides a sound box face guard, includes outer stratum reticulare (1), outer stratum reticulare (1) include first sound transmission portion (11) and be located two second sound transmission portions (12) of first sound transmission portion (11) both sides, a plurality of sound transmission through-holes have all been seted up on first sound transmission portion (11) and second sound transmission portion (12), its characterized in that, the perforation rate of first sound transmission portion (11) is greater than the perforation rate of second sound transmission portion (12).

2. A sound enclosure as claimed in claim 1, wherein: the perforation rate of the first sound-transmitting part (11) is 85-95%, and the perforation rate of the second sound-transmitting part (12) is 68-80%; or alternatively

The penetration rate of the first sound-transmitting part is 90-93%, and the penetration rate of the second sound-transmitting part is 72-78%.

3. A sound enclosure as claimed in claim 1, wherein: the sound box face mask further comprises an inner net layer, the inner net layer is located on the inner side of the outer net layer (1), the outer net layer (1) is made of metal materials, the inner net layer is made of plastic materials, inner layer through holes are formed in the inner net layer, and the aperture of each inner layer through hole is smaller than that of each sound transmission through hole.

4. A sound enclosure as claimed in claim 1, wherein: the sound transmission through holes in the first sound transmission part (11) are first sound transmission through holes (2), the sound transmission through holes in the second sound transmission part (12) are second sound transmission through holes (3), and the first sound transmission through holes (2) and the second sound transmission through holes (3) are hexagonal and distributed in a honeycomb shape.

5. A sound enclosure as claimed in claim 4, wherein: the edge of outer stratum reticulare (1) is the rectangle, first sound transmission through-hole (2), second sound transmission through-hole (3) all have two be on a parallel with the length direction of outer stratum reticulare (1) and the longitudinal limit that length equals and four with the length direction of outer stratum reticulare (1) and the length direction all are nonparallel and the lateral limit that length equals, the length of the lateral limit of first sound transmission through-hole (2) equals the length of the lateral limit of second sound transmission through-hole (3), the length of the longitudinal limit of first sound transmission through-hole (2) is greater than the length of the longitudinal limit of second sound transmission through-hole (3).

6. A sound enclosure as claimed in claim 5, wherein: the ratio of the length of the longitudinal edge of the first sound-transmitting through hole (2) to the length of the longitudinal edge of the second sound-transmitting through hole (3) is 2-5.

7. A sound enclosure as claimed in claim 1, wherein: the outer edges of the first sound-transmitting part (11) and the second sound-transmitting parts (12) are rectangular, and the ratio of the area of the first sound-transmitting part (11) to the area of each second sound-transmitting part (12) is 1.2-3.

8. A sound box, characterized by comprising a machine body (4) and the sound box mask according to any one of claims 1 to 7, wherein a high-pitched area and two low-pitched areas positioned on two sides of the high-pitched area are arranged on the machine body (4), the sound box mask is fixed on the front end surface of the machine body (4), the first sound transmission part (11) corresponds to the high-pitched area, and the two second sound transmission parts (12) correspond to the two low-pitched areas respectively.

9. Sound box according to claim 8, characterized in that said high pitch zone comprises a high pitch horn (5) and a horn (6) connected to said high pitch horn (5), said horn (6) being directed towards said first sound-transmitting portion (11), said low pitch zone comprising a low pitch horn (7) sounding towards said second sound-transmitting portion (12); or alternatively

The high pitch region includes high pitch loudspeaker (5) and with horn (6) that high pitch loudspeaker (5) are connected, horn (6) orientation first sound transmission portion (11), the low pitch region includes woofer (7) and sound guide hole (8), sound guide hole (8) are located woofer (7) with between the audio amplifier face guard, just the export orientation of sound guide hole (8) second sound transmission portion (12), sound guide hole (8) are used for with the sound of woofer (7) is directed second sound transmission portion (12).

10. Sound box according to claim 8, characterized in that the housing (4) is provided with a housing cavity and a support bracket (9) rotatably arranged in the housing cavity, the support bracket (9) being received in the housing cavity in a first state and protruding outside the housing (4) in a second state for supporting the housing (4) and adjusting the orientation of the housing (4).