CN207443123U - A kind of dust-proof loud speaker - Google Patents
A kind of dust-proof loud speaker Download PDFInfo
- Publication number
- CN207443123U CN207443123U CN201721373323.0U CN201721373323U CN207443123U CN 207443123 U CN207443123 U CN 207443123U CN 201721373323 U CN201721373323 U CN 201721373323U CN 207443123 U CN207443123 U CN 207443123U
- Authority
- CN
- China
- Prior art keywords
- cover
- dust
- rotary cover
- loud speaker
- swing arm
- 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.)
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Abstract
The utility model discloses a kind of dust-proof loud speakers, accumulator including pedestal and above pedestal, fixed cover, electric rotating machine, swing arm, rotary cover and horn assembly, fixed cover and rotary cover are located at composition hemispherical cover body on base top surface, fixed cover is fixed at base top surface outer rim, rotary cover is located at fixed cover inside, swing arm of the rotary cover by carrying axis hole is connected with electric rotating machine, the one end of swing arm with axis hole is connected on electric rotating machine output shaft, the other end of swing arm is fixedly connected with rotation cover inner surface, rotary cover drives rotation that horn assembly is closed or opened wide by swing arm.The utility model is swung using twin shaft steering engine as power source control rotary cover, PWN signals are conveyed by microcontroller to twin shaft steering engine to drive, the speed that rotary cover can be controlled to swing, horn assembly is closed or opened wide by the swing of rotary cover by the utility model, it can play the role of dust-separation when horn assembly does not work, can ensure the longer service life of loud speaker.
Description
Technical field
The utility model is related to a kind of dust-proof loud speakers, belong to loudspeaker apparatus field.
Background technology
Loud speaker is also known as " loudspeaker ", is a kind of very common electro-acoustic transducer device, in the electronic electric equipment of sounding
It can be seen, due to loud speaker essence or electronic equipment component, once loud speaker surface dirt can excessively cause to raise one's voice
The short circuit of device circuit board, generates noise, influences loud speaker service life, is usually protected for no loud speaker for a long time with cover
It protects, but does not usually want to take the trouble in real life and proofing dust and protecting is not carried out to loud speaker, therefore, design one kind can be automatically right
Loud speaker carry out proofing dust and protecting device be particularly important, can largely ensure for a long time loud speaker high-quality sound and
Longer service life.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of dust-proof loud speakers.
In order to realize above-mentioned target, the utility model adopts the following technical scheme：
A kind of dust-proof loud speaker, accumulator, fixed cover including pedestal and above pedestal, electric rotating machine, swing arm, rotation
Turn cover and horn assembly, said base is cylinder, and foregoing fixed cover and rotary cover are located at composition hemispherical cover on base top surface
Body, foregoing fixed cover and rotary cover are 1/4 spherical thin-wall case, and foregoing fixed cover is fixed at base top surface outer rim, foregoing
Rotary cover is located at fixed cover inside, and swing arm of the foregoing rotary cover by carrying axis hole is connected with electric rotating machine, and foregoing swing arm carries
One end of axis hole is connected on electric rotating machine output shaft, and the other end of foregoing swing arm is fixedly connected with rotation cover inner surface, foregoing
Rotary cover drives rotation that horn assembly is closed or opened wide by swing arm.
Preferably, foregoing horn assembly includes being fixed on the stent on base top surface and several loudspeakers on stent
, foregoing loudspeaker are rack-mount back to fixed cover.
Preferably, foregoing electric rotating machine use twin shaft steering engine, twin shaft steering engine have it is small, torque is moderate, accurate positioning,
It is easy for installation, it is cheap the characteristics of.
Preferably, foregoing electric rotating machine specifically uses 90 degree of twin shaft steering engines.
Preferably, foregoing twin shaft steering engine is conveyed PWN signals to twin shaft steering engine by microcontroller and is driven by MCU driving
Speed dynamic, that rotary cover can be controlled to swing.
Preferably, foregoing microcontroller uses 51 microcontrollers.
Preferably, said base side is equipped with charge port, audio input port and switch button.
Preferably, foregoing fixed cover with the center point of rotary cover overlaps and is located at electric rotating machine output shaft central axes
On, the outer diameter of foregoing fixed cover is identical with pedestal outside diameter.
Preferably, the outer diameter of foregoing rotary cover is identical with the internal diameter of fixed cover.
The utility model is beneficial in that：The utility model good appearance, using twin shaft steering engine as power source control
Rotary cover processed is swung, and has the characteristics of accurate positioning, easy for installation, and conveying PWN signals to twin shaft steering engine by microcontroller drives,
Horn assembly is closed or opened wide, energy by the swing of rotary cover by the speed that rotary cover can be controlled to swing, the utility model
It is enough to play the role of dust-separation when horn assembly does not work, can largely ensure for a long time loud speaker high-quality sound and compared with
Long service life.
Description of the drawings
Fig. 1 is that structure when horn assembly is closed in the rotary cover swing in a kind of dust-proof loud speaker of the utility model is shown
It is intended to；
Fig. 2 is that structure when horn assembly is opened wide in the rotary cover swing in a kind of dust-proof loud speaker of the utility model is shown
It is intended to.
The meaning of reference numeral in figure：1st, pedestal, 2, fixed cover, 3, rotary cover, 4, swing arm, 5, accumulator, 6, electric rotating
Machine, 7, stent, 8, loudspeaker, 9, charge port, 10, audio input port, 11, switch button.
Specific embodiment
Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the utility model.In addition, term " first ", " second " be only used for description purpose, and it is not intended that instruction or
Imply relative importance.
Referring to Fig. 1 and Fig. 2, the dust-proof loud speaker of the utility model, the accumulator including pedestal 1 and above pedestal 1
5th, fixed cover 2, electric rotating machine 6, swing arm 4, rotary cover 3 and horn assembly, pedestal 1 is cylinder, and 1 side of pedestal is equipped with charge port
9th, audio input port 10 and switch button 11, fixed cover 2 and rotary cover 3 are located at composition hemispherical cover body on 1 top surface of pedestal, fixed
Cover 2 and rotary cover 3 are 1/4 spherical thin-wall case, and fixed cover 2 is fixed at 2 top surface outer rim of pedestal, and rotary cover 3, which is located at, to be fixed
2 inside of cover, swing arm 4 of the rotary cover 3 by carrying axis hole are connected with electric rotating machine 6, and the one end of swing arm 4 with axis hole is connected to rotation
On 6 output shaft of rotating motor, the other end of swing arm 4 is fixedly connected with 3 inner surface of rotary cover, and rotary cover 3 drives rotation will by swing arm 4
Horn assembly is closed or opened wide, wherein the center point of fixed cover 2 and rotary cover 3 overlaps and is located at electric rotating machine 6 and exports
On axis in axis line, the outer diameter of fixed cover 2 is identical with 1 outside diameter of pedestal.
Horn assembly in the utility model includes being fixed on the stent 7 on 1 top surface of pedestal and 2 on stent 7
Loudspeaker 8, wherein loudspeaker 8 are mounted on back to fixed cover 2 on stent 7.
Specific in the present embodiment, electric rotating machine 6 uses twin shaft steering engine, and twin shaft steering engine has small, and torque is moderate, fixed
Position is precisely, easy for installation, it is cheap the characteristics of, for electric rotating machine 6 specifically using 90 degree twin shaft steering engines, twin shaft steering engine passes through 51 lists
Piece machine drives, and conveying PWN signals to twin shaft steering engine by microcontroller drives, the speed that rotary cover 3 can be controlled to swing.
In order to be better understood from the structure of the utility model, the utility model control principle is briefly illustrated：
The switch button 11 set by 1 side of pedestal controls horn assembly, and microcontroller receives switch button
11 signals convey the driving of PWN signals according to predetermined programming to electric rotating machine 6, and electric rotating machine 6 can control rotation by swing arm 4
Turn cover 3 to swing, by Fig. 1 it can be seen that rotary cover 3 and pedestal 1,2 formation one of fixed cover when swing arm 4 be in vertical position
The space of a closing, prevents dust from entering inside device, is rotated as seen in Figure 2 when swing arm 4 is horizontal
Cover 3 opens wide and positioned at fixed 2 inside of cover, does not stop outside horn assembly at this time, can ensure higher volume and tonequality.
To sum up foregoing, the utility model good appearance is swung as power source control rotary cover using twin shaft steering engine, had
Accurate positioning, it is easy for installation the characteristics of, PWN signals are conveyed to twin shaft steering engine by microcontroller and are driven, rotary cover can be controlled to put
Horn assembly is closed or opened wide by the swing of rotary cover by dynamic speed, the utility model, can be in horn assembly not work
As when play the role of dust-separation, can largely ensure loud speaker high-quality sound and longer service life for a long time.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
The basic principle, main feature and advantage of the utility model has been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical solution obtained, all falls in the scope of protection of the utility model.
Claims (9)
1. a kind of dust-proof loud speaker, which is characterized in that accumulator, fixed cover, electric rotating including pedestal and above pedestal
Machine, swing arm, rotary cover and horn assembly, the pedestal is cylinder, and the fixed cover and rotary cover are located at group on base top surface
Into hemispherical cover body, the fixed cover and rotary cover are 1/4 spherical thin-wall case, and the fixed cover is fixed on outside base top surface
At edge, the rotary cover is located at fixed cover inside, and swing arm of the rotary cover by carrying axis hole is connected with electric rotating machine, described
The one end of swing arm with axis hole is connected on electric rotating machine output shaft, and the other end of the swing arm is fixed with rotation cover inner surface to be connected
It connects, the rotary cover drives rotation that horn assembly is closed or opened wide by swing arm.
2. a kind of dust-proof loud speaker according to claim 1, which is characterized in that the horn assembly includes being fixed on pedestal
Stent on top surface and several loudspeaker on stent, the loudspeaker are rack-mount back to fixed cover.
3. a kind of dust-proof loud speaker according to claim 1, which is characterized in that the electric rotating machine uses twin shaft steering engine.
4. a kind of dust-proof loud speaker according to claim 3, which is characterized in that the electric rotating machine is specifically double using 90 degree
Axis steering engine.
5. a kind of dust-proof loud speaker according to claim 3, which is characterized in that the twin shaft steering engine is driven by microcontroller
It is dynamic.
6. a kind of dust-proof loud speaker according to claim 5, which is characterized in that the microcontroller uses 51 microcontrollers.
7. a kind of dust-proof loud speaker according to claim 1, which is characterized in that the base side is equipped with charge port, sound
Frequency input port and switch button.
A kind of 8. dust-proof loud speaker according to claim 1, which is characterized in that the center point of the fixed cover and rotary cover
It overlaps and is located on electric rotating machine output shaft central axes, the outer diameter of the fixed cover is identical with pedestal outside diameter.
9. a kind of dust-proof loud speaker according to claim 1, which is characterized in that the outer diameter of the rotary cover and fixed cover
Internal diameter is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373323.0U CN207443123U (en) | 2017-10-24 | 2017-10-24 | A kind of dust-proof loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373323.0U CN207443123U (en) | 2017-10-24 | 2017-10-24 | A kind of dust-proof loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207443123U true CN207443123U (en) | 2018-06-01 |
Family
ID=62293922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721373323.0U Expired - Fee Related CN207443123U (en) | 2017-10-24 | 2017-10-24 | A kind of dust-proof loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207443123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112073864A (en) * | 2020-09-07 | 2020-12-11 | 声威士通讯(深圳)有限公司 | Acoustic noise reduction device |
-
2017
- 2017-10-24 CN CN201721373323.0U patent/CN207443123U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112073864A (en) * | 2020-09-07 | 2020-12-11 | 声威士通讯(深圳)有限公司 | Acoustic noise reduction device |
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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: 20180601 Termination date: 20211024 |