CN209845268U - D-type power amplifier convenient to maintain - Google Patents

Abstract

The utility model relates to an amplifier technical field. The utility model provides a D class power amplifier convenient to maintenance, includes the box, the equal fixedly connected with fixed strip in the left and right sides of box inner wall, the top overlap joint of box has the case lid, the top of case lid is passed through bolt fixed connection and is in on the fixed strip. The problem of D class power amplifier inconvenient when the maintenance is solved, the utility model discloses when using, upwards stimulate the cardboard, cardboard and card strip break away from the overlap joint, under reset spring's elastic action, two fixed plates can move towards mutually opposite directions in order to remove, the fixed plate can the card strip break away from the joint this moment, thereby quick take off amplifier body important component from the box is inside, thereby conveniently maintain, when the installation, stimulate the cardboard, and rotate two fixed plates, with the cardboard overlap joint on the card strip, and under the effect of stopper, can be quick install amplifier body important component in the box, thereby install after convenient the maintenance.

Description

D-type power amplifier convenient to maintain

Technical Field

The utility model relates to an amplifier technical field specifically is a D class power amplifier convenient to maintenance.

Background

Class D power amplifiers refer to class D audio power amplifiers (sometimes also referred to as digital power amplifiers). By controlling ON/OFF of the switching unit, an amplifier for driving a speaker is called a class D amplifier. Class D amplifiers were first proposed in 1958 and have become increasingly popular in recent years. Compared with the general linear AB class power amplifier circuit, the D class power amplifier has the characteristics of high efficiency, small volume and the like.

When an electrical component on the inner wall of the frequency power amplifier is installed, a plurality of screws are needed to fix the component board at the bottom of the inner wall of the box, when the component board is installed and disassembled, the component board needs to be operated for many times, and particularly when the component board fails, soldering tin needs to be re-soldered on a soldering tin part at the bottom of the component board, so that the operation is very inconvenient during maintenance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a D class power amplifier convenient to maintenance has solved D class power amplifier inconvenient problem when the maintenance.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a D-type power amplifier convenient to maintain comprises a box body, wherein fixing strips are fixedly connected to the left side and the right side of the inner wall of the box body, a box cover is lapped on the top of the box body, the top of the box cover is fixedly connected onto the fixing strips through bolts, a U-shaped clamping seat is fixedly connected to the left side and the right side of the bottom of the inner wall of the box body, rotating rods are elastically connected to the left side and the right side of the inner wall of the U-shaped clamping seat, square strips are sleeved on the rotating rods, fixing plates are fixedly connected to the tops of the square strips, sliding rails are embedded in the front side and the rear side of one side, opposite to the two fixing plates, sliding blocks are sleeved in the sliding rails, the bottom ends of the sliding blocks are movably connected with the bottoms of the inner walls of the sliding rails through telescopic rods, extrusion springs are sleeved on the telescopic rods, connecting rods are fixedly connected to one sides, the clamping plate is far away from one end fixedly connected with limiting block of the connecting rod, the bottom of the inner wall of the box body is lapped with a mounting seat, important elements of a body of the amplifier are fixedly connected with the top of the mounting seat, clamping strips are fixedly connected with the left side and the right side of the top of the mounting seat, the bottom of the clamping plate is lapped with the top of each clamping strip, limiting strips are fixedly connected with one opposite sides of the fixing plate and the clamping strips, and the two opposite sides of the limiting strips are lapped.

Preferably, the number of the bolts is six, and the bottom ends of the bolts penetrate through the top of the box cover and are in threaded connection with thread grooves formed in the top of the fixing strip.

Preferably, the U-shaped clamping seat comprises a mounting seat, the front side and the rear side of the mounting seat are fixedly connected with movable sleeves, two bearings are embedded in the inner walls, far away from the movable sleeves, of the movable sleeves, a rotating rod is movably connected in the two bearings, two ends of the rotating rod are located in the movable sleeves, return springs are sleeved in the movable sleeves, one ends of the return springs are fixedly connected with the side surfaces of the rotating rods, and the other ends of the return springs are fixedly connected with the other sides of the inner walls of the movable sleeves.

Preferably, the distance between the upper side and the lower side of the inner wall of the sliding opening is equal to the height of one side of the inner wall of the sliding rail.

Preferably, the limiting strip is a rubber block, and the width of the limiting strip, the width of the clamping strip and the width of the fixing plate are equal.

Preferably, the front side and the rear side of one side of the clamping plate are fixedly connected with connecting rods, and the bottom of the mounting seat is located in a square groove formed in the middle of the bottom of the inner wall of the box body.

(III) advantageous effects

The utility model provides a D class power amplifier convenient to maintenance. The method has the following beneficial effects:

the utility model discloses when using, upwards stimulate the cardboard, cardboard and card strip break away from the overlap joint, under reset spring's elastic action, two fixed plates can move towards mutually opposite directions in order to remove, the fixed plate can block the strip and break away from the joint this moment, thereby it is quick to take off amplifier body important component from the box is inside, thereby conveniently maintain, when the installation, stimulate the cardboard, and rotate two fixed plates, with the cardboard overlap joint on the card strip, and under the effect of stopper, can be quick install amplifier body important component in the box, thereby install after convenient maintenance.

Drawings

Fig. 1 is a front sectional view of the present invention;

FIG. 2 is a side sectional view of the U-shaped holder of the present invention;

fig. 3 is a sectional view of the slide rail of the present invention.

In the figure: the amplifier comprises a box body 1, a fixed strip 2, a box cover 3, a bolt 4, a mounting seat 5, an amplifier body important element 6, a U-shaped clamping seat 7, a bearing 8, a rotating rod 9, a square strip 10, a return spring 11, a fixed plate 12, a sliding rail 13, a sliding block 14, a telescopic rod 15, an extrusion spring 16, a clamping plate 17, a limiting block 18, a limiting strip 19 and a clamping strip 20.

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 work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: a D-type power amplifier convenient to maintain comprises a box body 1, wherein the left side and the right side of the inner wall of the box body 1 are fixedly connected with fixing strips 2, the top of the box body 1 is lapped with a box cover 3, the top of the box cover 3 is fixedly connected onto the fixing strips 2 through bolts 4, the left side and the right side of the bottom of the inner wall of the box body 1 are fixedly connected with U-shaped clamping seats 7, the left side and the right side of the inner wall of the U-shaped clamping seats 7 are elastically connected with rotating rods 9, square strips 10 are sleeved on the rotating rods 9, fixing plates 12 are fixedly connected to the tops of the square strips 10, slide rails 13 are embedded on the front side and the rear side of the opposite sides of the two fixing plates 12, slide blocks 14 are sleeved in the slide rails 13, the bottom ends of the slide blocks 14 are movably connected with the bottoms of the inner walls of the slide rails 13 through telescopic rods 15, extrusion springs 16 are, one side fixedly connected with connecting rod of slider 14, the sliding opening that one side of slide rail 13 inner wall was seted up is run through to the one end of connecting rod and extends to its outside and fixedly connected with cardboard 17, the one end fixedly connected with stopper 18 of connecting rod is kept away from to cardboard 17, the bottom overlap joint of 1 inner wall of box has mount pad 5, the top fixedly connected with amplifier body important component 6 of mount pad 5, the equal fixedly connected with card strip 20 in the left and right sides at 5 tops of mount pad, the bottom of cardboard 17 and the top overlap joint of card strip 20, the equal fixedly connected with spacing 19 in relative one side of fixed plate 12 and card strip 20, the relative one side overlap joint of two spacing 19.

Specifically, the number of the bolts 4 is six, and the bottom ends of the bolts 4 penetrate through the top of the box cover 3 and are in threaded connection with thread grooves formed in the top of the fixing strip 2.

Specifically, U-shaped cassette 7 is including the mount pad, the equal fixedly connected with movable sleeve in both sides around the mount pad, and the inner wall that two movable sleeves kept away from mutually all inlays has bearing 8, and swing joint has a bull stick 9 in two bearing 8, and reset spring 11 has all been cup jointed in the both ends of bull stick 9 and being located the movable sleeve, reset spring 11's one end and the side fixed connection of the side surface of bull stick 9, reset spring 11's the other end and the opposite side fixed connection of movable sleeve inner wall. After the clamping plate 17 and the limiting block 18 are separated from the clamping strip 20, the limiting block 19 on the fixing plate 12 and the limiting block 19 on the clamping strip 20 are separated from other persons under the elastic action of the return spring 11, so that the important element 6 of the amplifier body can be quickly taken out.

Specifically, the distance between the upper side and the lower side of the inner wall of the sliding opening is equal to the height of one side of the inner wall of the sliding rail 13. The connecting rod can reciprocate in the sliding port.

Specifically, the limiting strip 19 is a rubber block, and the width of the limiting strip 19, the width of the clamping strip 20 and the width of the fixing plate 12 are equal. When the limiting block 19 on the fixing plate 12 on the same side is overlapped with the limiting block 19 on the clamping strip 20, the clamping plate 17 is put down at the moment, and the clamping plate 17 can be overlapped with the clamping strip 20, so that the operation during installation is facilitated.

Specifically, the equal fixedly connected with connecting rod in both sides around cardboard 17 one side, and the bottom of mount pad 5 is located the square inslot that the middle part was seted up in box 1 inner wall bottom. Through having seted up square groove, mount pad 5 equals with square inslot wall bottom size, and the mount pad 5 is put into square inslot, the mount pad 5 installation of being convenient for fast when being convenient for install.

The working principle is as follows: when using, upwards stimulate cardboard 17, cardboard 17 breaks away from the overlap joint with card strip 20, under reset spring 11's elastic action, bull stick 9 can rotate, two bull sticks 9 are when rotating, two fixed plates 12 can move towards opposite directions in order to remove, fixed plate 12 can block strip 20 and break away from the joint this moment, thereby quick take off amplifier body important component 6 from 1 inside of box, thereby conveniently maintain, when the installation, stimulate cardboard 17, and rotate two fixed plates 12, with cardboard 17 overlap joint on card strip 20, and under stopper 18's effect, can be quick install amplifier body important component 6 in box 1, thereby install after convenient the maintenance.

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.

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 (6)

1. The utility model provides a D class power amplifier convenient to maintenance, includes box (1), its characterized in that: the left side and the right side of the inner wall of the box body (1) are fixedly connected with fixing strips (2), the top of the box body (1) is lapped with a box cover (3), the top of the box cover (3) is fixedly connected onto the fixing strips (2) through bolts (4), the left side and the right side of the bottom of the inner wall of the box body (1) are fixedly connected with U-shaped clamping seats (7), the left side and the right side of the inner wall of the U-shaped clamping seats (7) are elastically connected with rotating rods (9), square strips (10) are sleeved on the rotating rods (9), the top of each square strip (10) is fixedly connected with a fixing plate (12), slide rails (13) are inlaid in the front side and the rear side of one side, opposite to each other, of the two fixing plates (12), slide blocks (14) are sleeved in the slide rails (13), and the bottom ends of the slide blocks (14, an extrusion spring (16) is sleeved on the telescopic rod (15), one side of the sliding block (14) is fixedly connected with a connecting rod, one end of the connecting rod penetrates through a sliding opening arranged on one side of the inner wall of the sliding rail (13), extends to the outside of the sliding opening and is fixedly connected with a clamping plate (17), one end of the clamping plate (17) far away from the connecting rod is fixedly connected with a limiting block (18), the bottom of the inner wall of the box body (1) is lapped with a mounting seat (5), the top of the mounting seat (5) is fixedly connected with an important element (6) of the amplifier body, the left side and the right side of the top of the mounting seat (5) are both fixedly connected with clamping strips (20), the bottom of the clamping plate (17) is in lap joint with the top of the clamping strip (20), the fixing plate (12) and one side, opposite to the clamping strip (20), of the fixing plate are fixedly connected with limiting strips (19), and the opposite sides of the two limiting strips (19) are in lap joint.

2. A service-friendly class D power amplifier as claimed in claim 1, wherein: the number of the bolts (4) is six, and the bottom ends of the bolts (4) penetrate through the top of the box cover (3) and are in threaded connection with the thread grooves formed in the top of the fixing strip (2).

3. A service-friendly class D power amplifier as claimed in claim 1, wherein: u-shaped cassette (7) is including the mount pad, the equal fixedly connected with movable sleeve in both sides around the mount pad, two the inner wall that the movable sleeve kept away from mutually all inlays has bearing (8), and swing joint has a bull stick (9) in two bearing (8), the both ends of bull stick (9) just are located reset spring (11) have all been cup jointed in the movable sleeve, reset spring (11) one end with the side surface fixed connection of bull stick (9), reset spring (11) the other end with the opposite side fixed connection of movable sleeve inner wall.

4. A service-friendly class D power amplifier as claimed in claim 1, wherein: the distance between the upper side and the lower side of the inner wall of the sliding opening is equal to the height of one side of the inner wall of the sliding rail (13).

5. A service-friendly class D power amplifier as claimed in claim 1, wherein: the limiting strip (19) is a rubber block, and the width of the limiting strip (19), the width of the clamping strip (20) and the width of the fixing plate (12) are equal.

6. A service-friendly class D power amplifier as claimed in claim 1, wherein: the front side and the rear side of one side of the clamping plate (17) are fixedly connected with connecting rods, and the bottom of the mounting seat (5) is located in a square groove formed in the middle of the bottom of the inner wall of the box body (1).