CN107547970B - Passive loudspeaker box and tuning passive loudspeaker box - Google Patents
Passive loudspeaker box and tuning passive loudspeaker box Download PDFInfo
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- CN107547970B CN107547970B CN201710893932.7A CN201710893932A CN107547970B CN 107547970 B CN107547970 B CN 107547970B CN 201710893932 A CN201710893932 A CN 201710893932A CN 107547970 B CN107547970 B CN 107547970B
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- 239000007788 liquid Substances 0.000 description 7
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- 230000001105 regulatory effect Effects 0.000 description 4
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Abstract
The invention provides a passive sound box and a tuning passive sound box, which belong to electronic product matching equipment and are used for being matched with electronic products, and comprise a main cylinder body, wherein one end of the main cylinder body is closed, the other end of the main cylinder body is open, and a containing groove is formed in the main cylinder body and is used for containing the electronic products; the main cylinder body encloses a resonance cavity, and the accommodating groove is communicated with the resonance cavity and the outside; the main cylinder body is also provided with a connecting hole. When the passive loudspeaker box provided by the invention is used, the electronic product is placed in the accommodating groove, so that the loudspeaker of the electronic product faces the resonance cavity, and the sound played by the electronic product can be reflected in the resonance cavity and led out through the connecting hole, so that the sound effect can be effectively improved, the volume is enlarged, unnecessary electric energy is not required to be consumed, the passive loudspeaker box has the function of saving energy, and the support force can be provided for the electronic product, so that the passive loudspeaker box is convenient to use. The tuning passive sound box comprises an adjusting part and a passive sound box, the size of the resonance cavity can be adjusted, and the tone quality is changed.
Description
Technical Field
The invention relates to the field of electronic product matching equipment, in particular to a passive sound box and a tuning passive sound box.
Background
In the prior art, a sound playing device of an electronic product is generally an earphone. The device has a certain effect on playing sound, but has strong limitation on application, is uncomfortable to wear and inconvenient to carry, and also needs to consume electric energy and waste resources.
The earphone is used for listening to music for a long time, is easy to cause hearing impairment, causes hypohearing, and causes dysphoria, dizziness, insomnia, hypomnesis, inattention, slow thinking response, abnormal psychological disorder and other conditions to the human body, thus being very harmful to the health.
At present, a passive sound box can not be changed due to the box body, so that single sound quality can be provided when the passive sound box is used, the difference of individual requirements of users on the sound quality can not be met, and auditory fatigue is easily caused.
Disclosure of Invention
The invention provides a passive sound box and a tuning passive sound box, and aims to solve the problems in the prior art.
The invention is realized in the following way:
the passive sound box is used for being matched with an electronic product and comprises a main cylinder body, wherein the main cylinder body comprises a first end and a second end which are oppositely arranged, the first end is open, and a containing groove is formed in the main cylinder body and is used for containing the electronic product;
the main cylinder body encloses a resonance cavity, and the accommodating groove is communicated with the resonance cavity and the outside;
and the main cylinder body is also provided with a connecting hole.
In a preferred embodiment of the present invention, the accommodating groove is disposed at the first end, and a first sealing plate is further disposed at an end of the main cylinder close to the opening, and extends from a side wall of the main cylinder toward a middle part of the main cylinder along a cross section of the main cylinder;
in a preferred embodiment of the present invention, a second sealing plate is further disposed at one end of the main cylinder near the opening, the second sealing plate extends from a side wall of the main cylinder along a cross section of the main cylinder toward a middle portion of the main cylinder, and the first sealing plate and the second sealing plate are respectively disposed at two sides of the accommodating groove.
In a preferred embodiment of the present invention, the passive speaker further includes a sound guiding cylinder, the sound guiding cylinder encloses a sound guiding cavity, one end of the sound guiding cylinder is connected to the connection hole, and the sound guiding cavity is communicated with the resonance cavity.
In a preferred embodiment of the present invention, the connection hole is provided with a first connection portion, the sound guide tube is provided with a second connection portion, and the first connection portion is adapted to the second connection portion.
In a preferred embodiment of the present invention, the sound guiding tube is slidably connected to the connection hole, and the sound guiding tube can slide into or out of the resonance chamber along the connection hole.
The specific sound guiding length of the sound guiding cylinder can be adjusted according to the depth of the sound guiding cylinder inserted into the connecting hole.
In a preferred embodiment of the invention, the receiving groove has a groove bottom provided with a spacer which can be relatively close to or remote from the first end.
A tuning passive sound box comprises the passive sound box with an adjusting part;
the adjusting part is arranged at the second end and comprises a moving plate, and the moving plate divides the inner cavity of the main cylinder into a resonance cavity close to the first end and an adjusting cavity close to the second end;
the moving plate can be near or far from the first end in the cavity.
In a preferred embodiment of the invention, the device further comprises a guide pipe, one end of the guide pipe is communicated with the adjusting cavity, the other end of the guide pipe is communicated with the adjusting cylinder, and the adjusting cylinder comprises an expanding through hole.
In a preferred embodiment of the present invention, the expansion through hole is connected with the air extracting device through an air pipe.
The beneficial effects of the invention are as follows: when the passive loudspeaker box obtained through the design is used, the electronic product is placed in the accommodating groove, so that the loudspeaker of the electronic product faces the resonance cavity, sound played by the electronic product can be reflected in the resonance cavity and led out through the connecting hole, the sound effect can be effectively improved, the volume is increased, the consumed electric energy is not needed, and the passive loudspeaker box has an energy-saving effect.
The passive loudspeaker box obtained through the design has two use modes, and not only can be used for placing electronic products in the accommodating groove, but also can be used for placing the electronic products in the connecting holes.
The tuning passive sound box provided by the invention can change the position of the movable plate by changing the external liquid level, so as to adjust the size of the resonance cavity and change the volume and the tone. The position of the movable plate can also be changed by changing the air pressure through the air suction device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a passive speaker according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a passive speaker and an electronic product according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a main cylinder structure of a passive speaker according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a sound guide cylinder of a passive speaker according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a passive speaker according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sound guide cylinder of a passive speaker according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a passive speaker according to the second embodiment of the present invention when a sound guiding cylinder of the passive speaker slides into a resonance cavity;
fig. 8 is a schematic structural diagram of a passive speaker according to a third embodiment of the present invention;
fig. 9 is a schematic view of a passive speaker box according to a third embodiment of the present invention when the passive speaker box is laid flat;
fig. 10 is a schematic structural diagram of a passive speaker according to a fourth embodiment of the present invention;
fig. 11 is a schematic structural diagram of a passive speaker provided in a fifth embodiment of the present invention;
fig. 12 is a schematic diagram of the cooperation of a gear and a rack provided in the fifth embodiment of the present invention;
fig. 13 is a schematic structural diagram of a tunable passive speaker according to a sixth embodiment of the present invention.
Icon: 001-tunable passive loudspeaker; 100-passive loudspeaker box; 101-a first end; 103-a second end; 110-a main cylinder; 111-resonance chambers; 112-opening; 113-a seating surface; 114-a receiving groove; 1141-a first side; 1143-a second side; 1145-side shell; 115-a conditioning chamber; 116-a first sealing plate; 117-baffles; 118-a second seal plate; 119-connecting holes; 1192-first connection; 130-an acoustic guide barrel; 132-an acoustic guide cavity; 134-a second connection; 136-a second abutment; 138-a first abutment; 160-cushion blocks; 161-rotating disc; 163-gear; 165-rack; 200-an electronic product; 300-an adjusting part; 310-moving plate; 350-catheter; 370-adjusting the cartridge; 371-expanding the through hole; 150-base.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Embodiment one:
the present embodiment provides a passive speaker 100 for use with an electronic product 200. Referring to fig. 1 and 2, the passive loudspeaker 100 includes a main cylinder 110 and an acoustic guide cylinder 130.
Referring to fig. 3, a main cylinder 110 encloses a resonance chamber 111. The main cylinder 110 is closed at one end and provided with an opening 112 at the other end. The main cylinder 110 is provided with a containing groove 114, the containing groove 114 is communicated with the resonance cavity 111 and the outside, and the containing groove 114 is used for containing the electronic product 200. The main cylinder 110 is further provided with a connecting hole 119, and a first connecting portion 1192 is provided at the connecting hole 119.
The end of the main cylinder 110 adjacent the opening 112 is provided with a first sealing plate 116 and a second sealing plate 118, the first sealing plate 116 extending from the side wall of the main cylinder 110 along the cross section of the main cylinder 110 towards the middle of the main cylinder 110. The second sealing plate 118 extends from the sidewall of the main cylinder 110 toward the middle of the main cylinder 110 along the cross-section of the main cylinder 110. The first sealing plate 116 and the second sealing plate 118 are separately disposed on two sides of the accommodating groove 114.
Further, the second sealing plate 118 is spaced from the bottom of the accommodating groove 114 more than the first sealing plate 116 is spaced from the bottom of the accommodating groove 114.
Referring to fig. 4, the sound guiding tube 130 encloses a sound guiding cavity 132, one end of the sound guiding tube 130 is connected to the connecting hole 119, and the sound guiding cavity 132 is communicated with the resonance cavity 111. The sound guiding tube 130 is provided with a second connecting portion 134. The second connection portion 134 is adapted to the first connection portion 1192. Specifically, the first connection portion 1192 is an internal thread portion, the second connection portion 134 is an external thread portion, and the main cylinder 110 and the sound guiding cylinder 130 are detachably connected.
The working principle and beneficial effects of the passive loudspeaker 100 provided in this embodiment are that: the electronic product 200 is placed in the accommodating groove 114, and the loudspeaker of the electronic product 200 is placed in the resonance cavity 111, so that when the electronic product 200 plays music, sound is transmitted into the resonance cavity 111, and multiple reflections and interference are enhanced in the resonance cavity 111, so that the played sound quality and sound effect can be improved;
the passive loudspeaker 100 can also provide supporting force for the electronic product 200, and when the passive loudspeaker is used, a user can place the electronic product 200 in the accommodating groove 114 and place the passive loudspeaker 100 on a desktop, so that the electronic product 200 is not required to be held, and the passive loudspeaker is more convenient;
the sound guide cylinder 130 is detachably connected with the main cylinder 110, so that portability of the passive loudspeaker 100 can be improved when the passive loudspeaker is not used;
the first sealing plate 116 and the second sealing plate 118 have different distances from one end of the main cylinder 110, when the electronic product 200 is placed, the front surface of the electronic product 200 corresponds to the first sealing plate 116, the back surface of the electronic product 200 corresponds to the second sealing plate 118, the first sealing plate 116 can avoid blocking a screen, and the second sealing plate 118 can provide stable support for the electronic product 200;
the connection hole 119 can be used as a phase inversion hole, which can reflect part of sound waves behind the passive enclosure 100 out through the phase inversion hole, thereby greatly improving sound reproduction efficiency.
It should be noted that: the first seal plate 116 and the second seal plate 118 may be integrally formed with the main cylinder 110, and may be rotatably or detachably connected to the main cylinder 110.
Embodiment two:
the present embodiment provides a passive speaker 100 for use with an electronic product 200. Referring to fig. 5, the passive enclosure 100 includes a main body 110 and an acoustic guide 130.
The main cylinder 110 encloses a resonance chamber 111. The main cylinder 110 is closed at one end and open at the other end 112. The main cylinder 110 is provided with a containing groove 114, the containing groove 114 is communicated with the resonance cavity 111 and the outside, and the containing groove 114 is used for containing the electronic product 200. The main cylinder 110 is also provided with a connection hole 119.
The end of the main cylinder 110 adjacent the opening 112 is provided with a first sealing plate 116 and a second sealing plate 118, the first sealing plate 116 extending from the side wall of the main cylinder 110 along the cross section of the main cylinder 110 towards the middle of the main cylinder 110. The second sealing plate 118 extends from the sidewall of the main cylinder 110 toward the middle of the main cylinder 110 along the cross-section of the main cylinder 110. The first sealing plate 116 and the second sealing plate 118 are separately disposed on two sides of the accommodating groove 114.
Further, the second sealing plate 118 is spaced from the bottom of the accommodating groove 114 more than the first sealing plate 116 is spaced from the bottom of the accommodating groove 114.
The sound guiding cylinder 130 encloses a sound guiding cavity 132, the sound guiding cylinder 130 is slidably connected to the connecting hole 119, the sound guiding cylinder 130 can slide into the resonance cavity 111 or slide out along the connecting hole 119, and the sound guiding cavity 132 is communicated with the resonance cavity 111.
Specifically, referring to fig. 6, the sound guiding tube 130 is provided with a first abutting portion 138 and a second abutting portion 136, the first abutting portion 138 and the second abutting portion 136 are disposed at intervals, the first abutting portion 138 is disposed in the resonance cavity 111, and the second abutting portion 136 is a spring plate, so that the second abutting portion 136 can be disposed outside the resonance cavity 111 and can move into the resonance cavity 111 along with the sliding movement of the sound guiding tube 130.
Referring to fig. 7, when the sound guiding tube 130 slides out of the resonance cavity 111, the first abutting portion 138 abuts against the main tube 110, and at this time, the main tube 110 is located between the first abutting portion 138 and the second abutting portion 136; when the sound guide tube 130 slides into the resonance chamber 111, the first contact is not pressed, and the sound guide tube 130 may be pushed into the resonance chamber 111.
The working principle of the passive loudspeaker 100 provided in this embodiment is substantially the same as that in the first embodiment, and will not be described here again.
On the basis of the first embodiment, the passive speaker 100 provided in this embodiment further has the following advantages: the sound guiding cylinder 130 can slide into and slide out of the resonance cavity 111, so that the use requirement and the carrying requirement of a user can be met, and meanwhile, the sound guiding cylinder 130 and the main cylinder 110 are still integrated when the sound guiding cylinder is carried, and the loss of components can be avoided.
Embodiment III:
the present embodiment provides a passive speaker 100 for use with an electronic product 200. Referring to fig. 8, the passive enclosure 100 includes a main housing 110.
The main cylinder 110 encloses a resonance chamber 111. The main cylinder 110 is closed at one end and open at the other end 112. The main cylinder 110 is provided with a containing groove 114, the containing groove 114 is communicated with the resonance cavity 111 and the outside, and the containing groove 114 is used for containing the electronic product 200. The distance from the wall surface of the main cylinder 110 on one side of the accommodating groove 114 to the bottom of the accommodating groove 114 is smaller than the distance from the wall surface of the main cylinder 110 on the other side of the accommodating groove 114 to the bottom of the accommodating groove 114.
The main cylinder 110 is further provided with a connection hole 119, and the connection hole 119 can be used for adapting to the electronic product 200.
Specifically, the profile of the connecting hole 119 includes two arcs parallel to the cross section of the main cylinder 110, and two line segments parallel to the axis of the main cylinder 110.
The main cylinder 110 includes a seating surface 113, the seating surface 113 being a plane, the seating surface 113 extending along an axial direction of the main cylinder 110, the seating surface 113 being disposed opposite to the connection hole 119.
The working principle of the passive loudspeaker 100 provided in this embodiment is substantially the same as that in the first and second embodiments, and will not be described here again.
On the basis of the passive loudspeaker 100 provided in the first embodiment and the second embodiment, the passive loudspeaker 100 provided in the present embodiment has the following beneficial effects: the structure is simpler, and when in use, the electronic product 200 can be placed in the accommodating groove 114 and the connecting hole 119 (refer to fig. 9), so that the passive loudspeaker 100 in the embodiment has more use modes.
Embodiment four:
the present embodiment provides a passive speaker 100, referring to fig. 10, the passive speaker 100 has the same basic structure as the passive speaker 100 provided in the first embodiment, and the difference is that, compared with the passive speaker 100, the resonance cavity 111 of the passive speaker 100 is a sphere.
Correspondingly, the main cylinder 110 of the passive speaker 100 in this embodiment has a spherical structure, and the main cylinder 110 is provided with a receiving groove 114. The accommodating groove 114 is used for accommodating the electronic product 200. A baffle 117 is provided on one side of the accommodation groove 114. The baffle 117 is used to support the electronic product 200.
The other end of the main cylinder 110, which is far from the accommodating groove 114, is provided with a base 150. The base 150 is used to support the passive enclosure 100.
The main cylinder 110 is connected with a connection hole 119. The connection hole 119 is connected to the sound guide tube 130. The sound guide tube 130 forms a sound guide cavity 132. The sound guide chamber 132 communicates with the resonance chamber 111.
On the basis of the passive loudspeaker 100 provided in the first embodiment, the passive loudspeaker 100 provided in this embodiment further has the following beneficial effects: the spherical resonance chamber 111 can reflect sound waves better, thereby providing better resonance sound quality.
Fifth embodiment:
the present embodiment provides a passive speaker 100, referring to fig. 11 and 12, the passive speaker 100 has the same basic structure as the passive speaker 100 provided in the first embodiment, except that, compared to the passive speaker 100 provided in the first embodiment, the accommodating groove 114 has a groove bottom, and a pad 160 is disposed at the groove bottom.
The surface of the cushion block 160 is provided with a turntable 161 for manual rotation, a gear 163 coaxial with the turntable 161 is arranged in the cushion block 160, and a rack 165 is fixedly arranged at the bottom of the accommodating groove 114. The rack 165 cooperates with the gear 163 to rotate the turntable 161 to raise and lower the pad 160.
The position of the holding cushion block 160 can be achieved by fixing the turntable 161, in this embodiment, a telescopic rod can be arranged at the circumferential end of the turntable 161, and the telescopic rod is clamped into a circumferential groove of the cushion block 160 around the turntable 161 to achieve the fixation of the turntable 161 and thus the position of the cushion block 160.
On the basis of the passive loudspeaker 100 provided in the first embodiment, the passive loudspeaker 100 provided in this embodiment further has the following beneficial effects: the height of the electronic product 200 on the accommodating groove 114 can be adjusted by the cushion block 160.
Example six:
this embodiment provides a tunable passive speaker 001. Referring to fig. 13, the tunable passive speaker 001 includes a passive speaker 100 and a tuning section 300.
The passive enclosure 100 includes a main housing 110. In this embodiment, the main cylinder 110 is a cylindrical cylinder, a cavity is disposed inside the main cylinder 110, the main cylinder 110 has a first end 101 and a second end 103 that are disposed opposite to each other, and a receiving groove 114 is disposed at the first end 101 of the main cylinder 110.
The accommodating groove 114 includes a first side 1141 and a second side 1143, and in this embodiment, the first side 1141 and the second side 1143 are parallel to the axial direction of the main cylinder 110. The electronic device (e.g. mobile phone, MP 3) may be held in the receiving slot 114, and in particular the audio output end of the electronic product 200 is mounted at the end of the receiving slot 114 facing the second end 103. The first side 1141 and the second side 1143 of the accommodating groove 114 are both configured in a shell shape, so that the audio output of the electronic device is directly output into the cavity. The first side 1141 and the second side 1143 of the accommodating groove 114 are respectively provided with a side shell 1145, and the side shells 1145 can keep the electronic product 200 fixed in the accommodating groove 114.
The second end 103 of the main cylinder 110 is provided with an adjustment portion 300, the adjustment portion 300 including a moving plate 310. The moving plate 310 is disposed in the cavity, and the cavity around the moving plate 310 is sealed, so that the moving plate 310 does not rotate in the cavity and only translates in a direction approaching or separating from the second end 103 due to a certain thickness of the moving plate 310.
The second end 103 of the main cylinder 110 is provided with a conduit 350, one end of the conduit 350 is communicated with the adjusting cavity 115, the other end is communicated with the adjusting cylinder 370, one end of the adjusting cylinder 370 is provided with an expansion through hole 371, liquid can be added into the adjusting cylinder 370 through the expansion through hole 371, and the resonance cavity 111 is also communicated with the outside at the accommodating groove 114, so that the liquid level of the adjusting cylinder 370 is raised while liquid is introduced into the adjusting cylinder 370 under the action of atmospheric pressure and gravity, the moving plate 310 is synchronously raised, and when liquid in the adjusting cylinder 370 is pumped out, the moving plate 310 is synchronously lowered, so that the position of the moving plate 310 can be controlled by adjusting the liquid level in the adjusting cylinder 370.
In other embodiments, the expansion through hole 371 is connected with an air extraction device, through which the air in the adjustment cylinder 370 can be adjusted: the gas in the regulating cylinder 370 is pumped out to enable the gas pressure in the regulating cylinder 370 to be instantaneously reduced, and the movable plate 310 moves towards the second end 103 to reduce the total volume of the regulating cavity 115 and the regulating cylinder 370 due to the fact that the end, close to the resonance cavity 111, of the movable plate 310 receives the atmospheric pressure, so that the atmospheric pressure is balanced; also, the gas filled in the adjustment cylinder 370 causes the gas pressure in the adjustment cylinder 370 to instantaneously increase, and the moving plate 310 moves toward the first end 101 to increase the total volume of the adjustment chamber 115 and the adjustment cylinder 370, balancing the atmospheric pressure, due to the atmospheric pressure received by the end of the moving plate 310 near the resonance chamber 111.
The tuning passive loudspeaker 001 provided by the invention can change the position of the movable plate 310 by changing the external liquid level, thereby adjusting the size of the resonance cavity 111 and changing the volume and the tone.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The passive sound box is used in cooperation with an electronic product and is characterized by comprising a main cylinder body, wherein the main cylinder body comprises a first end and a second end which are oppositely arranged, the first end is open, and the first end of the main cylinder body is provided with a containing groove for containing the electronic product;
the main cylinder body encloses a resonance cavity, and the accommodating groove is communicated with the resonance cavity and the outside;
the side wall of the main cylinder body is also provided with a connecting hole, and the connecting hole can be used for adapting to the electronic product.
2. The passive enclosure of claim 1, wherein the first end of the main housing is further provided with a first sealing plate extending from a side wall of the main housing along a cross-section of the main housing toward a middle of the main housing.
3. The passive speaker of claim 2, wherein the first end of the main cylinder is further provided with a second sealing plate, the second sealing plate extends from a side wall of the main cylinder toward a middle portion of the main cylinder along a cross section of the main cylinder, and the first sealing plate and the second sealing plate are respectively disposed on two sides of the accommodating groove.
4. The passive speaker of claim 1, further comprising a sound guide tube, the sound guide tube enclosing a sound guide cavity, one end of the sound guide tube being connected to the connection hole and such that the sound guide cavity communicates with the resonance cavity.
5. The passive speaker of claim 4, wherein the connection hole is provided with a first connection portion, the sound guide tube is provided with a second connection portion, and the first connection portion is adapted to the second connection portion.
6. The passive speaker of claim 4, wherein the sound guide is slidably coupled to the connection aperture, the sound guide being capable of sliding into or out of the resonance chamber along the connection aperture.
7. The passive speaker of claim 1, wherein the receiving groove has a groove bottom provided with a spacer that can be relatively close to or remote from the first end.
8. A toneable passive speaker comprising an adjustment portion and a passive speaker according to any one of claims 1-7;
the adjusting part is arranged at the second end and comprises a moving plate, and the moving plate divides the inner cavity of the main cylinder body into a resonance cavity close to the first end and an adjusting cavity close to the second end;
the moving plate is capable of being positioned within the interior cavity toward or away from the first end.
9. The tunable passive speaker of claim 8, further comprising a conduit having one end in communication with the tuning chamber and another end in communication with a tuning barrel, the tuning barrel comprising an expansion through hole.
10. The tuning passive loudspeaker of claim 9, wherein the expansion through hole is connected to the air extraction device via an air pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893932.7A CN107547970B (en) | 2017-09-27 | 2017-09-27 | Passive loudspeaker box and tuning passive loudspeaker box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893932.7A CN107547970B (en) | 2017-09-27 | 2017-09-27 | Passive loudspeaker box and tuning passive loudspeaker box |
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| Publication Number | Publication Date |
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| CN107547970A CN107547970A (en) | 2018-01-05 |
| CN107547970B true CN107547970B (en) | 2023-11-28 |
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