CN217283224U

CN217283224U - Multichannel digital power amplifier

Info

Publication number: CN217283224U
Application number: CN202123236530.0U
Authority: CN
Inventors: 欧阳遵喜
Original assignee: Guangzhou Dolsi Audio Equipment Co ltd
Current assignee: Guangzhou Dolsi Audio Equipment Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-08-23
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to a multichannel digital power amplifier, including protecting crust, power amplifier mounting panel and power amplifier body, be provided with damper on the inner wall of protecting crust, damper includes first mounting bracket, second mounting bracket and the layer board of fixed mounting on the diapire in the protecting crust. This multichannel digital power amplifier, connect the power amplifier mounting panel of installation power amplifier body through setting up damper, make the power amplifier mounting panel receive the amplitude of activity after vibrations amplified, thereby realize the consumption to the effort, alleviate the damage to the power amplifier mounting panel, eliminate the amplitude through the damping simultaneously, reduce the incessantly condition of rocking of power amplifier mounting panel, through setting up the guide block, the joint installation to the power amplifier mounting panel can be accomplished to locating lever cooperation constant head tank, further reduce vibrations under the screw fixation and cause the condition of damage, also through setting up the reel of receiving, first toper tooth and second toper tooth, make the power amplifier mounting panel can be convenient for install the dismantlement.

Description

Multichannel digital power amplifier

Technical Field

The utility model relates to a functional amplifier technical field specifically is a multichannel digital power amplifier.

Background

The power amplifier is a power amplifier, which is called a loudspeaker in short, and is the most basic equipment in a sound system, and the power amplifier is used for amplifying weak electric signals from a signal source (from a sound console in a professional sound system) to drive a loudspeaker to make sound, and can also be other equipment for amplifying power.

The power amplifier is often used for the inside use of stereo set, and in use produces vibrations simultaneously along with the vibrations of stereo set easily, and current power amplifier protects through the shell, and the power amplifier fixed department under the vibrations produces certain harm to the power amplifier easily, and is comparatively tricky, provides a multichannel digital power amplifier to this, solves the problem that the aforesaid was proposed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a multichannel digital power amplifier possesses advantages such as damage that effectively reduces vibrations and bring, has solved the power amplifier among the prior art and has been used for the stereo set inside to shake along with the stereo set is synchronous easily to cause the problem of damage to power amplifier fixed connection department.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-channel digital power amplifier comprises a protective shell, a power amplifier mounting plate and a power amplifier body, wherein a damping component is arranged on the inner wall of the protective shell;

shock-absorbing component includes first mounting bracket, second mounting bracket and the layer board of fixed mounting on the diapire in the protecting crust, be provided with fixed connection in the first spring of sliding sleeve on the first mounting bracket, all rotate on two sets of sliding sleeves and install the connecting rod, the bottom fixed mounting of layer board has pivot piece, two the connecting rod rotates jointly to be connected in one pivot piece, the outside slidable mounting of second mounting bracket have on the fly leaf second mounting bracket fixed mounting have fixed connection in the second spring of fly leaf, the fly leaf is kept away from one of second spring serve fixed mounting have fixed connection in the damping of second mounting bracket.

Further, first mounting bracket includes two fixed plates and a dead lever, and two fixed plates are fixed mounting respectively at the both ends of dead lever, simultaneously fixed connection in on the interior diapire of protecting crust.

Furthermore, a sliding hole is formed in the movable plate in a penetrating mode, and the fixed rod of the second mounting frame penetrates through the sliding hole in the movable plate.

Furthermore, a sliding groove is formed in the side face of the power amplifier mounting plate, and a sliding rod which is connected with the sliding groove in a sliding mode is fixedly mounted on the movable plate.

Further, fixed mounting has the guide block on the inner wall of protecting crust, the inside slidable mounting of guide block has the slide, fixed mounting has the locating lever that runs through and extend to the guide block outside on the inside side of slide orientation protecting crust, fixed mounting has the third spring between the inner wall of slide and guide block.

Further, the top of power amplifier body has been seted up the constant head tank, the locating lever peg graft in the constant head tank.

Furthermore, a winding drum is rotatably installed on the inner wall of the guide block, a traction rope is wound on the outer portion of the winding drum, one end of the traction rope is fixedly connected to the outer wall of the winding drum, and the other end of the traction rope is fixedly connected to one side face, far away from the positioning rod, of the sliding plate.

Furthermore, a first conical tooth is fixedly installed at one end of the winding drum, a second conical tooth penetrating and extending into the guide block is rotatably installed at the top of the guide block, and the second conical tooth is meshed with the first conical tooth in a tooth shape.

Furthermore, the end of the positioning rod extending to the outside of the guide block is an inclined plane, and the inclined plane faces the inner side surface of the protective shell.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this multichannel digital power amplifier, connect the power amplifier mounting panel of installation power amplifier body through setting up damper, make the power amplifier mounting panel receive the amplitude of activity after vibrations amplified, thereby realize the consumption to the effort, alleviate the damage to the power amplifier mounting panel, eliminate the amplitude through the damping simultaneously, reduce the incessantly condition of rocking of power amplifier mounting panel, through setting up the guide block, the joint installation to the power amplifier mounting panel can be accomplished to locating lever cooperation constant head tank, further reduce vibrations under the screw fixation and cause the condition of damage, also through setting up the reel of receiving, first toper tooth and second toper tooth, make the power amplifier mounting panel can be convenient for install the dismantlement.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;

FIG. 3 is a side view of the guide block of the present invention;

fig. 4 is a top view of the power amplifier body of the present invention.

In the figure: the power amplifier comprises a protective shell 1, a mounting plate 2, a power amplifier body 3, a supporting plate 4, a rotating shaft 5, a connecting rod 6, a first mounting frame 7, a sliding sleeve 8, a first spring 9, a second mounting frame 10, a second spring 11, a movable plate 12, damping 13, a sliding rod 14, a sliding groove 15, a guide block 16, a sliding plate 17, a positioning rod 18, a positioning groove 19, a third spring 20, a winding drum 21, a traction rope 22, a first conical tooth 23 and a second conical tooth 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the multi-channel digital power amplifier in this embodiment includes a protection shell 1, a power amplifier mounting plate 2 and a power amplifier body 3, the power amplifier body 3 is welded on the upper surface of the power amplifier mounting plate 2, the power amplifier mounting plate 2 is loaded inside the protection shell 1, a damping component is disposed on the inner wall of the protection shell 1, and the damping component and the power amplifier mounting plate 2 can cooperate with each other to achieve effective damping of the power amplifier body 3.

In this embodiment, damper includes first mounting bracket 7 and layer board 4 of fixed mounting on the inner wall of protecting crust 1, first mounting bracket 7 includes two fixed plates and a dead lever, two fixed plates are fixed mounting respectively at the both ends of dead lever, fixed connection is on the inner wall of protecting crust 1 simultaneously, the outside slidable mounting of first mounting bracket 7 has sliding sleeve 8, fixed mounting has first spring 9 between sliding sleeve 8 and the fixed plate, all rotate on two sets of sliding sleeves 8 and install connecting rod 6, the bottom fixed mounting of layer board 4 has pivot spare 5, two connecting rod 6 rotate jointly and connect in a pivot spare 5, make under the condition of 5 single-point atress of pivot spare, can extrude two connecting rods 6 and take place the angle change and promote and extrude first spring 9, realize the buffering.

It should be noted that, the shock absorbing assembly further includes a second mounting bracket 10 fixedly mounted on the side wall of the protective shell 1, the second mounting bracket 10 is identical to the first mounting bracket 7 in structural composition, a movable plate 12 is slidably mounted outside the second mounting bracket 10, a sliding hole is formed in the movable plate 12 in a penetrating manner, a fixing rod of the second mounting bracket 10 penetrates through the sliding hole in the movable plate 12, so that the movable plate 12 is slidably connected to the second mounting bracket 10, and meanwhile, the movable plate 12 is attached to the side wall of the protective shell 1, so that the relative rotation between the movable plate 12 and the second mounting bracket 10 is limited, and the sliding stability of the movable plate 12 is ensured.

In order to enable the movable plate 12 to have the shock absorption effect, the second spring 11 fixedly connected to the movable plate 12 is fixedly mounted on the second mounting frame 10, the damper 13 fixedly connected to the second mounting frame 10 is fixedly mounted on one end of the movable plate 12 away from the second spring 11, the sliding amplitude of the movable plate 12 is limited by the damper 13, the frequency of shaking of the movable plate 12 is reduced, and therefore the movable plate 12 can be restored to be stable more quickly.

In this embodiment, the side surface of the power amplifier mounting plate 2 is provided with a sliding groove 15, the movable plate 12 is fixedly provided with a sliding rod 14 connected to the sliding groove 15 in a sliding manner, and the sliding rod 14 can guide the sliding of the power amplifier mounting plate 2, so that the power amplifier body 3 can be quickly mounted.

In this embodiment, fixed mounting has guide block 16 on the inner wall of protecting crust 1, the inside slidable mounting of guide block 16 has slide 17, slide 17 has the locating lever 18 that runs through and extend to the outside of guide block 16 towards fixed mounting on the inside side of protecting crust 1, fixed mounting has third spring 20 between the inner wall of slide 17 and guide block 16, third spring 20 promotes slide 17 and guide block 16 and slides towards the inside of protecting crust 1 and extends, constant head tank 19 has been seted up at the top of power amplifier body 3, locating lever 18 is pegged graft in constant head tank 19, can pass through propelling movement power amplifier mounting panel 2, thereby make power amplifier body 3 accomplish the location installation.

It should be noted that, a winding drum 21 is rotatably installed on the inner wall of the guide block 16, a traction rope 22 is wound around the outside of the winding drum 21, one end of the traction rope 22 is fixedly connected to the outer wall of the winding drum 21, the other end of the traction rope is fixedly connected to a side surface of the sliding plate 17 away from the positioning rod 18, so that the positioning rod 18 can realize traction recovery under the rotation of the winding drum 21, a first tapered tooth 23 is fixedly installed on one end of the winding drum 21, a second tapered tooth 24 penetrating through and extending to the inside of the guide block 16 is rotatably installed on the top of the guide block 16, and the second tapered tooth 24 is meshed with the first tapered tooth 23 in a tooth shape, so that retraction of the positioning rod 18 can be controlled externally, and the purpose of facilitating detachment of the power amplifier body 3 is achieved.

In order to facilitate the cooperation of the power amplifier body 3 and the positioning rod 18, the positioning rod 18 in this embodiment extends to the outside end of the guide block 16 and is an inclined plane, and the inclined plane faces the inner side surface of the protection shell 1 and can be attached to the power amplifier body 3 to extrude the sliding plate 17.

The working principle of the above embodiment is as follows:

by arranging the power amplifier mounting plate 2 above the supporting plate 4, corresponding sliding grooves 15 on the left side and the right side of the power amplifier mounting plate 2 to sliding rods 14, and pushing the power amplifier mounting plate 2 by sliding the attaching supporting plate 4, so that the power amplifier mounting plate 2 drives the power amplifier body 3 to slide to the lower part of the guide block 16, the positioning rod 18 extending to the lower part in the guide block 16 is extruded by the power amplifier body 3, thereby retracting to the inner part of the guide block 16, and after the power amplifier body 3 moves in place, under the pushing of the elastic force of the third spring 20, the sliding plate 17 slides and drives the positioning rod 18 to extend out to be correspondingly inserted into the positioning hole 19, thereby completing the installation of the power amplifier body 3, after the installation is finished, when the power amplifier mounting plate is vibrated, the rotating shaft 5 can move through the power amplifier mounting plate 2 and simultaneously extrude the rotating shaft 5, the rotating shaft 5 drives the connecting rod 6 to change the angle, further, and the connecting rod 6 pushes the sliding sleeve 8 to slide on the first mounting frame 7, meanwhile, the first spring 9 is extruded to realize the buffer of the amplification action amplitude, meanwhile, the power amplifier mounting plate 2 pulls the movable plate 12 to slide along the second mounting frame 10 through the slide rod 14, the second spring 11 is extruded to finish the buffer, and finally, the shaking amplitude is eliminated through the damper 13 to realize the shock absorption.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multichannel digital power amplifier, includes protecting crust (1), power amplifier mounting panel (2) and power amplifier body (3), its characterized in that: a damping component is arranged on the inner wall of the protective shell (1);

the shock absorption assembly comprises a first mounting rack (7), a second mounting rack (10) and a supporting plate (4) which are fixedly arranged on the inner bottom wall of the protective shell (1), a first spring (9) fixedly connected with the sliding sleeves (8) is arranged on the first mounting rack (7), connecting rods (6) are rotatably arranged on the two groups of sliding sleeves (8), the bottom of the supporting plate (4) is fixedly provided with a rotating shaft piece (5), two connecting rods (6) are connected with the rotating shaft piece (5) in a rotating way together, a movable plate (12) is slidably mounted outside the second mounting frame (10), a second spring (11) fixedly connected to the movable plate (12) is fixedly mounted on the second mounting frame (10), one end, far away from the second spring (11), of the movable plate (12) is fixedly provided with a damper (13) fixedly connected to the second mounting frame (10).

2. The multi-channel digital power amplifier of claim 1, wherein: the first mounting rack (7) comprises two fixing plates and a fixing rod, wherein the two fixing plates are respectively fixedly mounted at two ends of the fixing rod, and are simultaneously and fixedly connected to the inner bottom wall of the protective shell (1).

3. The multi-channel digital power amplifier of claim 1, wherein: a sliding hole is formed in the movable plate (12) in a penetrating mode, and the fixing rod of the second mounting frame (10) penetrates through the sliding hole in the movable plate (12).

4. The multi-channel digital power amplifier of claim 1, wherein: the side of the power amplifier mounting plate (2) is provided with a sliding groove (15), and the movable plate (12) is fixedly provided with a sliding rod (14) which is connected with the sliding groove (15) in a sliding manner.

5. The multi-channel digital power amplifier of claim 1, wherein: fixed mounting has guide block (16) on the inner wall of protecting crust (1), the inside slidable mounting of guide block (16) has slide (17), slide (17) have and run through to extend to outside locating lever (18) of guide block (16) towards fixed mounting on the inside side of protecting crust (1), fixed mounting has third spring (20) between the inner wall of slide (17) and guide block (16).

6. The multi-channel digital power amplifier of claim 5, wherein: the top of the power amplifier body (3) is provided with a positioning groove (19), and the positioning rod (18) is inserted into the positioning groove (19).

7. The multi-channel digital power amplifier of claim 5, wherein: the novel guide device is characterized in that a winding drum (21) is rotatably mounted on the inner wall of the guide block (16), a traction rope (22) is wound on the outer portion of the winding drum (21), one end of the traction rope (22) is fixedly connected to the outer wall of the winding drum (21), and the other end of the traction rope is fixedly connected to one side face, away from the positioning rod (18), of the sliding plate (17).

8. The multi-channel digital power amplifier of claim 7, wherein: one end of the winding drum (21) is fixedly provided with first conical teeth (23), the top of the guide block (16) is rotatably provided with second conical teeth (24) which penetrate through the guide block (16) and extend into the guide block (16), and the second conical teeth (24) are meshed with the first conical teeth (23) in a tooth form.

9. The multi-channel digital power amplifier of claim 5, wherein: one end of the positioning rod (18) extending to the outside of the guide block (16) is an inclined plane, and the inclined plane faces the inner side face of the protective shell (1).