CN214846193U - Structure capable of improving low-frequency effect of projector - Google Patents
Structure capable of improving low-frequency effect of projector Download PDFInfo
- Publication number
- CN214846193U CN214846193U CN202120622730.0U CN202120622730U CN214846193U CN 214846193 U CN214846193 U CN 214846193U CN 202120622730 U CN202120622730 U CN 202120622730U CN 214846193 U CN214846193 U CN 214846193U
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- projector
- guide pipe
- air duct
- frequency effect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 9
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of multimedia playing, in particular to a structure capable of improving the low-frequency effect of a projector, which can enhance the low-frequency effect and improve the reliability by radiating a low-frequency part through resonance; the projector optical engine comprises an upper complete machine cover, an optical machine triangular space, an air guide pipe and a loudspeaker, wherein the acoustic air guide pipe is introduced into a sound cavity of the loudspeaker, the air guide pipe is led out from a long-edge hole of the loudspeaker, the air guide pipe extends into the optical machine triangular space where the projector optical machine is located, and the upper part of a body and the bottom of the upper complete machine cover can be combined in an installing mode; the horn and the back cavity are combined to form an acoustic system, the system is provided with two openings, one opening is provided with a horn unit, the other opening is provided with an air duct, and the air duct and the optical-mechanical triangular space form a Helmholtz resonant cavity.
Description
Technical Field
The utility model relates to a multimedia playing's technical field especially relates to a can improve structure of projecting apparatus low frequency effect.
Background
As is well known, one structure that can improve the low-frequency effect of a projector is a projector apparatus that reinforces the low-frequency enhancement use effect, which is widely used in the field of multimedia playing; generally, a projector is applied to office, education, entertainment and the like, and generally multimedia equipment is used for transmitting images and sounds to a terminal for people to watch and learn.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a through resonance radiation bass part, reinforcing low frequency effect improves the structure that can improve the projecting apparatus low frequency effect of reliability.
The utility model discloses a structure that can improve the low frequency effect of projecting apparatus, including last whole cover, ray apparatus triangle space, air duct and loudspeaker, introduce the stereo set air duct in the sound chamber of loudspeaker, the air duct is drawn forth through the long limit trompil at loudspeaker, the air duct extends to the ray apparatus triangle space that the projecting apparatus ray apparatus is located, body upper portion and last whole cover bottom mountable combine; the horn and the back cavity are combined to form an acoustic system, the system is provided with two openings, one opening is provided with a horn unit, the other opening is provided with an air duct, and the air duct and the optical-mechanical triangular space form a Helmholtz resonant cavity.
The utility model discloses a can improve structure of projecting apparatus low frequency effect, the air duct is made by glass.
Compared with the prior art, the beneficial effects of the utility model are that: the air in the air guide pipe has a resonance frequency, when this frequency receives the interior frequency of loudspeaker compression ray apparatus triangle space, can produce resonance with loudspeaker to make the air in the air guide pipe externally radiate sound especially bass part, superpose on the sound that loudspeaker originally sent, as the reinforcement, strengthen the frequency bandwidth that this acoustic system can reach, the air of the sound chamber ability abundant utilization ray apparatus triangle space of loudspeaker, can realize better low frequency effect during the vibration sound production, improve the reliability.
Drawings
FIG. 1 is a schematic axial side view of the present invention;
in the drawings, the reference numbers: 1. the whole machine cover is arranged; 2. an optical machine triangular space; 3. an air duct; 4. a horn.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, the utility model discloses a structure capable of improving the low frequency effect of a projector, including an upper complete machine cover 1, a light machine triangular space 2, an air duct 3 and a loudspeaker 4, wherein the sound duct 3 is introduced into the sound cavity of the loudspeaker 4, the air duct 3 is led out through the long-edge hole of the loudspeaker 4, the air duct 3 extends into the light machine triangular space 2 where the projector light machine is located, and the upper part of the body and the bottom of the upper complete machine cover 1 can be combined in an installing way; the horn 4 and the back cavity are combined to form an acoustic system, the system is provided with two openings, one opening is provided with a horn 4 unit, the other opening is provided with an air duct 3, and the air duct 3 and the optical-mechanical triangular space 2 form a Helmholtz resonant cavity; air in the air duct 3 has a resonant frequency, when this frequency receives 2 interior frequencies of loudspeaker 4 compression optical engine triangle space, can produce resonance with loudspeaker 4, thereby make the air in the air duct 3 externally radiate sound especially bass part, superpose on the sound that loudspeaker 4 originally sent, as the reinforcement, strengthen the frequency bandwidth that this acoustic system can reach, loudspeaker 4's sound chamber can be abundant utilize the air of 2 of optical engine triangle space, can realize better low frequency effect during the vibration sound production, reliability is improved.
The utility model relates to a structure capable of improving the low frequency effect of a projector, a gas guide tube 3 is made of glass; the gas guide tube 3 is materialized to have basic gas guide function and improve the reliability.
The utility model discloses a can improve structure of projecting apparatus low frequency effect, it is at the during operation, the air in the air duct 3 possesses a resonant frequency, this frequency receives in 2 interior frequencies of loudspeaker 4 compression optical engine triangle space, can produce resonance with loudspeaker 4, thereby make the air in the air duct 3 externally radiate sound especially bass part, superpose on the sound that loudspeaker 4 originally sent, as the reinforcement, strengthen the frequency bandwidth that this acoustic system can reach, loudspeaker 4's sound chamber can be abundant utilize the air of optical engine triangle space 2, can realize better low frequency effect during the vibration sound production.
The structure capable of improving the low-frequency effect of the projector of the utility model adopts common mechanical modes such as installation mode, connection mode or setting mode, and can be implemented as long as the beneficial effects are achieved; the utility model discloses a can improve loudspeaker 4 of structure of projecting apparatus low frequency effect for purchase on the market, this industry technical staff only need according to its subsidiary service instruction install and operate can.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. A structure capable of improving the low-frequency effect of a projector is characterized by comprising an upper whole machine cover (1), a light machine triangular space (2), an air guide pipe (3) and a loudspeaker (4), wherein the sound guide pipe (3) is introduced into a sound cavity of the loudspeaker (4), the air guide pipe (3) is led out through a long-edge hole of the loudspeaker (4), the air guide pipe (3) extends into the light machine triangular space (2) where a projector light machine is located, and the upper part of a body and the bottom of the upper whole machine cover (1) can be combined in an installing manner; the horn (4) and the back cavity are combined to form an acoustic system, the system is provided with two openings, one opening is provided with the horn (4) unit, the other opening is provided with an air duct (3), and the air duct (3) and the optical-mechanical triangular space (2) form a Helmholtz resonant cavity.
2. A structure for improving the low frequency effect of a projector as claimed in claim 1, characterized in that the air duct (3) is made of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120622730.0U CN214846193U (en) | 2021-03-26 | 2021-03-26 | Structure capable of improving low-frequency effect of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120622730.0U CN214846193U (en) | 2021-03-26 | 2021-03-26 | Structure capable of improving low-frequency effect of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214846193U true CN214846193U (en) | 2021-11-23 |
Family
ID=78760250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120622730.0U Expired - Fee Related CN214846193U (en) | 2021-03-26 | 2021-03-26 | Structure capable of improving low-frequency effect of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214846193U (en) |
-
2021
- 2021-03-26 CN CN202120622730.0U patent/CN214846193U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |