CN208891071U - A kind of power amplifier with Multifunctional knob - Google Patents
A kind of power amplifier with Multifunctional knob Download PDFInfo
- Publication number
- CN208891071U CN208891071U CN201821904286.6U CN201821904286U CN208891071U CN 208891071 U CN208891071 U CN 208891071U CN 201821904286 U CN201821904286 U CN 201821904286U CN 208891071 U CN208891071 U CN 208891071U
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- operation panel
- fixedly connected
- power amplifier
- multifunctional knob
- multifunctional
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- 238000004458 analytical method Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000003796 beauty Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of power amplifier with Multifunctional knob, the front end face of the power amplifier is fixedly connected with operation panel, and rotation is plugged with several Multifunctional knobs on the operation panel；Permanent magnetic strip is provided with above the Multifunctional knob, the permanent magnetic strip is fixedly connected on the inner sidewall of operation panel, the inner sidewall of the operation panel is fixedly connected there are two positioning baffle, two positioning baffles are symmetrical arranged about the pivot center of Multifunctional knob, and be in angle is 120 ° between two positioning baffles.Many kinds of parameters only needs a Multifunctional knob that adjusting can be completed, and effectively reduces the knob quantity on operation panel, keeps operation panel more neat and artistic.Switch good hand touch using function point analysis bar, there is apparent force feedback, facilitate adjusting, after positioning baffle and rotor plate contradict absorption, function point analysis bar can be made to be kept fixed, prevent from rotating.More accurate rotary encoder can be adjusted.
Description
Technical field
The utility model relates to a kind of power amplifiers, and in particular to a kind of power amplifier with Multifunctional knob.
Background technique
It is exactly that the small signals amplification from source of sound or pre-amplifier is pushed sound that power amplifier, which is commonly called as " sound amplifier " his effect,
Case sound reproduction.The effect of a set of good sound system power amplifier is performed meritorious deeds never to be obliterated.Many adjustings are often provided on existing power amplifier to join
Several knobs, each knob corresponds to a kind of function, and the parameter that power amplifier needs to adjust is many kinds of, and excessive knob is using
When will increase difficulty, be also unfavorable for the beauty for keeping power amplifier whole and clean and tidy.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of function with Multifunctional knob
It puts, by the way that multiple knobs are integrated into a knob, using convenient switching device, under the premise of realizing assurance function, reduces
The knob quantity of operation panel improves the tidiness and beauty of operation panel.
The purpose of this utility model can be achieved through the following technical solutions:
The front end face of a kind of power amplifier with Multifunctional knob, including power amplifier and rotary encoder, the power amplifier is solid
Surely it is connected with operation panel, rotation is plugged with several Multifunctional knobs on the operation panel；The Multifunctional knob it is upper
Side is provided with permanent magnetic strip, and the permanent magnetic strip is fixedly connected on the inner sidewall of operation panel, and the inner sidewall of the operation panel is solid
There are two positioning baffle, two positioning baffles to be symmetrical arranged about the pivot center of Multifunctional knob for fixed connection, and two
Be in angle is 120 ° between positioning baffle.
The Multifunctional knob includes function point analysis bar, the function point analysis bar by the different cylinder of two length end face
It is fixedly and coaxially connected composition, the thin bar rotation is socketed with numerical value adjusting rod, and the numerical value adjusting rod is different by two length
The end face of cylindrical tube is fixedly and coaxially connected composition, and the numerical value adjusting rod rotation is plugged in operation panel, and numerical value adjusting rod
Both ends be located at the two sides of operation panel, one end that the function point analysis bar is located on the inside of operation panel, which is fixedly connected with, to be turned
One end of movable plate, the rotor plate are L-type structure, and the numerical value adjusting rod is located at the coaxial fixing sleeve in one end on the inside of operation panel
It is connected to sun gear, there are three the planetary gear of annular spread, two neighboring planetary gears for the outer ring engagement of the sun gear
Be in angle is 120 °, and the planetary gear is coaxially fixed to be plugged with self-locking bearing, and the self-locking bearing fixation is plugged with connection
One end of axis, the other end of the connecting shaft are fixedly and coaxially connected in the shaft of rotary encoder, and the rotary encoder is remote
Lateral wall from self-locking bearing is fixedly connected with mounting blocks, and three mounting blocks fixations are set on the same swivel becket, institute
The inner ring side wall for stating swivel becket is fixedly connected by bracket with one end that function point analysis bar is located on the inside of operation panel；
The self-locking bearing includes outer ring, and the ball-cut shape that the inner ring side wall of the outer ring offers several annular spreads is recessed
Slot, the inner rotation of the ball-cut shape groove are connected with steel ball, and the spacing of two neighboring ball-cut shape groove is less than the radius of steel ball,
Sliding groove is offered on outer ring inner ring side wall between the two neighboring ball-cut shape groove, the inner wall of the sliding groove passes through bullet
Spring is connected with sliding magnetic patch, and the sliding magnetic patch is fixedly connected with locking level, and the rotation axis of steel ball is parallel with the axis of outer ring
Setting, the steel ball contradict on the outer ring side wall of the same inner ring, and the outer ring side wall of the inner ring offers matching steel ball
Annular groove, the inner wall and steel ball of the annular groove, which roll, to be connected, and annular groove inner wall offers matching locking level and divides in a ring
The lock slots of cloth, the distance between two neighboring described lock slots are less than the width of locking level.
Further, the Multifunctional knob is there are two more than.
Further, the function point analysis bar, which is located on the end face on the outside of operation panel, is provided with arrow.
Further, the diameter of the sun gear is less than planetary gear diameter.
Further, the mounting blocks are permanent magnet.
Further, the one end of one end and rotor plate far from sun gear of the positioning baffle far from operation panel is solid
Surely it is connected with permanent magnetism piece.
The utility model has the beneficial effects that
(1) there are three rotary encoders for connection on Multifunctional knob, can be switched to by rotating function adjusting rod each
Rotary encoder, then be adjusted by numerical value of the rotation value adjusting rod to corresponding rotary encoder, many kinds of parameters only needs
Adjusting can be completed in one Multifunctional knob, effectively reduces the knob quantity on operation panel, is easy to use, makes operation panel more
Add neat and artistic.
(2) each rotary encoder can be simply switched to using function point analysis bar, and switches good hand touch, go to corresponding position
Set, by the magnetic force sucking action of mounting blocks and permanent magnetic strip, can have apparent force feedback, facilitate adjusting, positioning baffle with
After rotor plate contradicts absorption, function point analysis bar can be made to be kept fixed, prevent from rotating.
(3) when the numerical value of rotary encoder being adjusted, due to using the lesser sun gear of diameter and being relatively large in diameter
Planetary gear, more accurate rotary encoder can be adjusted.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of operation panel connection Multifunctional knob part；
Fig. 3 is the perspective view of the Multifunctional knob of the utility model；
Fig. 4 is the sectional view of the Multifunctional knob of the utility model；
Fig. 5 is the schematic diagram of internal structure of the self-locking bearing of the utility model.
In figure: power amplifier 1, operation panel 2, Multifunctional knob 3, function point analysis bar 301, numerical value adjusting rod 302, rotor plate
303, sun gear 304, planetary gear 305, connecting shaft 306, mounting blocks 307, swivel becket 308, bracket 309, permanent magnetic strip 4, fixed
Position baffle 5, self-locking bearing 6, outer ring 601, steel ball 602, sliding magnetic patch 603, locking level 604, inner ring 605, lock slots 606, rotation
Turn encoder 7.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-5, present embodiments provides a kind of power amplifier with Multifunctional knob, including 1 He of power amplifier
Rotary encoder 7, the front end face of power amplifier 1 are fixedly connected with operation panel 2, and there are two more function for rotation grafting on operation panel 2
Energy knob 3, such as one is used for the adjusting of output volume, and three rotary encoders 7 respectively correspond the volume adjustment of middle high bass,
One is used for the adjusting of microphone input, and three rotary encoders 7 respectively correspond intensity, audio and the tune for inputting volume of noise reduction
Section, the top of Multifunctional knob 3 are provided with permanent magnetic strip 4, and permanent magnetic strip 4 is fixedly connected on the inner sidewall of operation panel 2, operating surface
The inner sidewall of plate 2 is fixedly connected there are two positioning baffle 5, and two positioning baffles 5 are symmetrical about the pivot center of Multifunctional knob 3
Setting, and be in angle is 120 ° between two positioning baffles 5.
Multifunctional knob 3 include function point analysis bar 301, function point analysis bar 301 by the different cylinder of two length end face
It is fixedly and coaxially connected composition, and shorter body diameter is greater than the diameter of longer cylinder, and shorter cylinder is located at operating surface
2 outside of plate, function point analysis bar 301, which is located on the end face in 2 outside of operation panel, is provided with arrow.The now selected rotation of prompt
Turn encoder 7, thin bar rotation is socketed with numerical value adjusting rod 302, numerical value adjusting rod 302 by the different cylindrical tube of two length end
Face is fixedly and coaxially connected composition, and shorter cylinder pipe diameter is greater than the diameter of longer cylindrical tube, and shorter cylindrical tube position
In 2 outside of operation panel, the rotation of numerical value adjusting rod 302 is plugged in operation panel 2, and the both ends difference of numerical value adjusting rod 302
Positioned at the two sides of operation panel 2, one end that function point analysis bar 301 is located at 2 inside of operation panel is fixedly connected with rotor plate 303
One end, rotor plate 303 are L-type structure, and positioning baffle 5 one end and rotor plate 303 far from operation panel 2 are far from sun gear
304 one end is fixedly connected to permanent magnetism piece.Rotor plate 303 can be contradicted and be attached together with positioning baffle 5, numerical value adjusting rod
The 302 coaxial fixing sleeves in one end for being located at 2 inside of operation panel are connected to sun gear 304, and the outer ring of sun gear 304 is engaged with three
The planetary gear 305 of a annular spread, the diameter of sun gear 304 are less than the diameter of planetary gear 305, are conducive to accurately adjust
Rotary encoder 7 is saved, the be in angle of two neighboring planetary gear 305 is 120 °, and the coaxial fixation of planetary gear 305 is plugged with self-locking
Bearing 6 when self-locking bearing 6 is located at highest point, close to permanent magnetic strip 4, forms self-locking state, self-locking bearing 6 under the influence of permanent magnetic strip 4
Fixed one end for being plugged with connecting shaft 306, the other end of connecting shaft 306 are fixedly and coaxially connected in the shaft of rotary encoder 7,
Rotary encoder 7 is fixedly connected with mounting blocks 307 far from the lateral wall of self-locking bearing 6, and mounting blocks 307 are permanent magnet.Three peaces
The dress fixation of block 307 is set on the same swivel becket 308, and the inner ring side wall of swivel becket 308 passes through bracket 309 and function point analysis bar
301 one end for being located at 2 inside of operation panel are fixedly connected；
Self-locking bearing 6 includes outer ring 601, and the inner ring side wall of outer ring 601 offers the ball-cut shape groove of ten annular spreads,
The inner rotation of ball-cut shape groove is connected with steel ball 602, and the spacing of two neighboring ball-cut shape groove is less than the radius of steel ball 602,
Sliding groove is offered on 601 inner ring side wall of outer ring between two neighboring ball-cut shape groove, the inner wall of sliding groove is connected by spring
It is connected to sliding magnetic patch 603, sliding magnetic patch 603 is fixedly connected with locking level 604, and the axis of the rotation axis of steel ball 602 and outer ring 601
Line is arranged in parallel, and steel ball 602 contradicts on the outer ring side wall of the same inner ring 605, and outer ring 601 can be rotated independently with inner ring 605,
The outer ring side wall of inner ring 605 offers the annular groove of matching steel ball 602, and the inner wall and steel ball 602 of annular groove, which roll, to be connected, and ring
Shape slot inner wall offers matching locking level 604 and the lock slots 606 that are distributed in a ring, between two neighboring lock slots 606 away from
From the width for being less than locking level 604,606 density of lock slots is big, and 6 upper end of self-locking bearing has multiple locking levels 604, it is ensured that
At least one locking level 604 is caught in lock slots 606.
The specific work process of the present embodiment is as follows:
1) adjusting of parameter: Multifunctional knob 3 is there are three gear, rotating function adjusting rod 301, under original state, rotation
Plate 303 is located among two positioning baffles 5, and a planetary gear 305 is located at highest point at this time, at this time the planetary gear 305
On self-locking bearing 6 and permanent magnetic strip 4 apart from nearest, the sliding magnetic patch 603 and 4 repulsion of permanent magnetic strip of 6 upper end of self-locking bearing are maximum, will
Locking level 604 releases sliding groove, is caught in locking level 604 in lock slots 606, makes self-locking bearing 6 at self-locking state, at this time outer ring
601 rotate synchronously with inner ring 605, and the self-locking bearing 6 on other two planetary gear 305 is in self-locking state, then outer ring 601
With the independent rotation of inner ring 605.Rotation value adjusting rod 302 at this time drives sun gear 304 to rotate, and then drives planetary gear
305 rotations, cannot not drive the shaft of corresponding rotary encoder 7 to rotate in the planetary gear of self-locking state 305, and be located at most
The rotary encoder 7 of high point can be rotated together with numerical value adjusting rod 302, realize the adjusting of parameter.
2) switching of function: can be rotated function point analysis bar 301, all can be rotated 120 ° counterclockwise or clockwise, turns to most
When big angle, function point analysis bar 301 drives swivel becket 308 and rotary encoder 7 to rotate synchronously, and permanent magnetic strip 4 is close to mounting blocks 307
Afterwards, mutual attraction increases, and can generate apparent FORCE FEEDBACK, and convenient for users to whether in place to judge rotation, positioning baffle 5 is understood and turned
Movable plate 303 is contradicted and is attached together, and is limited to rotation maximum angular, is made to remain stationary after being adjusted to corresponding position, will not
Rotation, since planetary gear 305 is not when moving to highest point, internal self-locking bearing 6 is turning not in self-locking state
The shaft of rotary encoder 7 can't be made to rotate in 308 rotation process of rotating ring.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of power amplifier with Multifunctional knob, including power amplifier (1) and rotary encoder (7), which is characterized in that the function
The front end face for putting machine (1) is fixedly connected with operation panel (2), and it is multi-functional to be plugged with several for rotation on the operation panel (2)
Knob (3)；It is provided with permanent magnetic strip (4) above the Multifunctional knob (3), the permanent magnetic strip (4) is fixedly connected on operating surface
On the inner sidewall of plate (2), the inner sidewall of the operation panel (2) is fixedly connected with two positioning there are two positioning baffle (5)
Baffle (5) is symmetrical arranged about the pivot center of Multifunctional knob (3), and institute in angle is between two positioning baffles (5)
120°；
The Multifunctional knob (3) includes function point analysis bar (301), and the function point analysis bar (301) is different by two length
The end face of cylinder is fixedly and coaxially connected composition, and function point analysis bar (301) rotation is socketed with numerical value adjusting rod (302), described
Numerical value adjusting rod (302) is fixedly and coaxially connected by the end face of the different cylindrical tube of two length and is formed, the numerical value adjusting rod
(302) rotation is plugged in operation panel (2), and the both ends of numerical value adjusting rod (302) are located at the two of operation panel (2)
Side, the function point analysis bar (301) are located at one end that one end on the inside of operation panel (2) is fixedly connected with rotor plate (303), institute
Stating rotor plate (303) is L-type structure, and the numerical value adjusting rod (302) is located at the coaxial fixing sleeve in one end on the inside of operation panel (2)
It is connected to sun gear (304), there are three the planetary gear (305) of annular spread, phases for the outer ring engagement of the sun gear (304)
Adjacent two be in angles of planetary gear (305) are 120 °, and coaxially fixation is plugged with self-locking bearing (6) to the planetary gear (305),
The fixed one end for being plugged with connecting shaft (306) of the self-locking bearing (6), the other end of the connecting shaft (306) is coaxially fixed to be connected
It connects in the shaft of rotary encoder (7), the rotary encoder (7) is fixedly connected with far from the lateral wall of self-locking bearing (6)
Mounting blocks (307), three mounting blocks (307) fixations are set on the same swivel becket (308), the swivel becket (308)
Inner ring side wall be fixedly connected by bracket (309) with one end that function point analysis bar (301) is located on the inside of operation panel (2)；
The self-locking bearing (6) includes outer ring (601), and the inner ring side wall of the outer ring (601) offers several annular spreads
Ball-cut shape groove, the inner rotation of the ball-cut shape groove is connected with steel ball (602), the spacing of two neighboring ball-cut shape groove
Less than the radius of steel ball (602), sliding is offered on outer ring (601) inner ring side wall between the two neighboring ball-cut shape groove
The inner wall of slot, the sliding groove is connected with sliding magnetic patch (603) by spring, and the sliding magnetic patch (603) is fixedly connected with lock
Fixed pole (604), and the rotation axis of steel ball (602) and the axis of outer ring (601) are arranged in parallel, the steel ball (602) contradicts same
On the outer ring side wall of one inner ring (605), the outer ring side wall of the inner ring (605) offers the annular groove of matching steel ball (602),
The inner wall of the annular groove and steel ball (602), which roll, to be connected, and annular groove inner wall offers matching locking level (604) and in a ring
The lock slots (606) of distribution, the distance between two neighboring described lock slots (606) are less than the width of locking level (604).
2. a kind of power amplifier with Multifunctional knob according to claim 1, which is characterized in that the Multifunctional knob
(3) there are two more than.
3. a kind of power amplifier with Multifunctional knob according to claim 1, which is characterized in that the function point analysis bar
(301) it is located on the end face on the outside of operation panel (2) and is provided with arrow.
4. a kind of power amplifier with Multifunctional knob according to claim 1, which is characterized in that the sun gear
(304) diameter is less than the diameter of planetary gear (305).
5. a kind of power amplifier with Multifunctional knob according to claim 1, which is characterized in that the mounting blocks (307)
For permanent magnet.
6. a kind of power amplifier with Multifunctional knob according to claim 1, which is characterized in that the positioning baffle (5)
One end and rotor plate (303) far from operation panel (2) are fixedly connected to permanent magnetism piece far from the one end of sun gear (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821904286.6U CN208891071U (en) | 2018-11-19 | 2018-11-19 | A kind of power amplifier with Multifunctional knob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821904286.6U CN208891071U (en) | 2018-11-19 | 2018-11-19 | A kind of power amplifier with Multifunctional knob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208891071U true CN208891071U (en) | 2019-05-21 |
Family
ID=66518336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821904286.6U Expired - Fee Related CN208891071U (en) | 2018-11-19 | 2018-11-19 | A kind of power amplifier with Multifunctional knob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208891071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111131948A (en) * | 2019-12-11 | 2020-05-08 | 深圳市优必选科技股份有限公司 | Earphone control structure |
-
2018
- 2018-11-19 CN CN201821904286.6U patent/CN208891071U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111131948A (en) * | 2019-12-11 | 2020-05-08 | 深圳市优必选科技股份有限公司 | Earphone control structure |
| CN111131948B (en) * | 2019-12-11 | 2022-06-28 | 深圳市优必选科技股份有限公司 | Earphone control structure |
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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: 20190521 |