CN111182433A - Power amplifier structure - Google Patents

Power amplifier structure Download PDF

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Publication number
CN111182433A
CN111182433A CN202010067183.4A CN202010067183A CN111182433A CN 111182433 A CN111182433 A CN 111182433A CN 202010067183 A CN202010067183 A CN 202010067183A CN 111182433 A CN111182433 A CN 111182433A
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CN
China
Prior art keywords
power amplifier
box
end wall
case
wall
Prior art date
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Pending
Application number
CN202010067183.4A
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Chinese (zh)
Inventor
谢良
张运
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tiangong (guangzhou) Audio Equipment Co Ltd
Original Assignee
Tiangong (guangzhou) Audio Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tiangong (guangzhou) Audio Equipment Co Ltd filed Critical Tiangong (guangzhou) Audio Equipment Co Ltd
Priority to CN202010067183.4A priority Critical patent/CN111182433A/en
Publication of CN111182433A publication Critical patent/CN111182433A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00Public address systems
    • H04R27/04Electric megaphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The application discloses power amplifier structure includes: the device comprises a case and at least two drawing boxes; a first accommodating cavity is arranged in the case; a plurality of placing grooves corresponding to the pull boxes one by one are arranged in the first accommodating cavity; the drawing box is movably inserted into the placing groove through an inserting hole which is formed in the case and corresponds to the placing groove one by one, and a second accommodating cavity for accommodating the power amplifier module is formed in the drawing box. The modularized independent installation of each channel power amplifier module can be applied, the disassembly and the maintenance of each channel power amplifier module are convenient, and the maintenance and the replacement are more convenient.

Description

Power amplifier structure
Technical Field
The application relates to the technical field of audio processing equipment, in particular to a power amplifier structure.
Background
The power amplifier is commonly called as a loudspeaker, and has the function of amplifying weak signals from a sound source or a preceding amplifier to push a sound box to play sound. The power of a set of good sound system power amplifier is not available. The power amplifier device generally includes a chassis, a power input control module, a power amplifier module, and the like. The existing power amplifier equipment can be divided into a single channel and multiple channels, wherein the multiple channels have a more three-dimensional power amplifier effect than the single channel. However, each channel power amplifier module and the power input control module in the existing multi-channel power amplifier device are collectively arranged in the power amplifier case, and once one of the channel power amplifier modules is damaged, the whole power amplifier device needs to be disassembled and maintained, which is troublesome to disassemble and maintain. Moreover, if the consumer does not have a corresponding after-sale service point nearby, once the power amplifier module of the power amplifier device is damaged due to an individual channel, the whole power amplifier device is required to be sent back to the corresponding after-sale point for maintenance, so that the repair transportation cost is increased, and the repair maintenance is inconvenient.
Disclosure of Invention
In view of this, an object of the present application is to provide a power amplifier structure, which can be applied to the modularized independent installation of each channel power amplifier module, and is convenient for the disassembly and maintenance of each channel power amplifier module, and the maintenance and the replacement are more convenient.
To achieve the above technical object, the present application provides a power amplifier structure, including: the device comprises a case and at least two drawing boxes;
a first accommodating cavity is arranged in the case;
a plurality of placing grooves corresponding to the pull boxes one to one are formed in the first accommodating cavity;
the drawing box is movably inserted into the placing groove through an insertion hole which is formed in the case and corresponds to the placing groove one by one, and a second accommodating cavity for accommodating the power amplifier module is formed in the drawing box.
Further, the case comprises a case body and a case cover;
the box cover can be detachably covered on the box body.
Furthermore, the placing grooves are sequentially distributed along the direction from one side end wall of the case to the other side end wall of the case, and are arranged along the direction from the front end wall of the case to the rear end wall of the case.
Further, the insertion opening is opened in a rear end wall of the chassis.
Furthermore, a plurality of side stoppers which are sequentially arranged along the direction from one side end wall of the case to the other side end wall are arranged on the bottom wall in the case body;
the placing grooves are respectively formed between two adjacent side stoppers and/or between the side stoppers and the inner side wall of the box body.
Furthermore, the first end of the side blocking piece is connected with the inner rear end wall of the box body, and a first gap space is formed between the second end of the side blocking piece and the inner front end wall of the box body.
Furthermore, the side baffle is composed of two side baffles which are parallel to each other and are vertically arranged on the inner bottom wall of the box body;
and a second gap space communicated with the first gap space is formed between the two side baffles and the inner bottom wall of the box body in a surrounding manner.
Further, the device also comprises a locking member;
the drawing box is detachably matched with the case through the locking.
Further, the locking member comprises an elastic sheet and a locking sheet;
the elastic piece is arranged close to one inner side wall of the drawing box, one end of the elastic piece is connected with the inner side wall of the drawing box, and the other end of the elastic piece extends out of the rear end wall of the drawing box;
the locking piece is fixed on one surface of the elastic piece, which is tightly attached to one inner side wall of the drawing box;
a second avoidance opening for the locking sheet to movably extend out is formed in the position, close to the rear end wall of the drawing box, of one inner side wall of the drawing box;
and a lock hole for the locking piece to be movably clamped is formed in the side blocking piece and one inner side wall of the box body.
Furthermore, a shifting block is sleeved and fixed at the other end of the elastic sheet.
According to the technical scheme, the plurality of placing grooves which correspond to the pull boxes one to one are formed in the case, so that the pull boxes are convenient to install and place; and the corresponding power amplifier module is installed by utilizing the drawing box, so that the modularization of the power amplifier module is realized. By utilizing the drawing and pulling matching between the drawing and pulling box and the case, the drawing and pulling box corresponding to the damaged power amplifier module can be directly replaced for the individual damaged power amplifier module, and the targeted maintenance and replacement are realized. Moreover, the design of a pull box type modular structure is realized, and for a consumer who does not have a corresponding after-sale service point nearby, the pull box corresponding to the damaged power amplifier module is detached and sent back to the after-sale service point for maintenance, so that compared with the traditional method for sending back the whole power amplifier equipment, the repair transportation cost is saved, and the repair and maintenance are convenient. The whole modularized independent installation device can be applied to modularized independent installation of each channel power amplifier module, is convenient for disassembling and maintaining each channel power amplifier module, and is more convenient to maintain and replace.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is an exploded schematic diagram of a power amplifier structure provided in the present application;
fig. 2 is a schematic diagram of a drawing box structure of a power amplifier structure provided in the present application;
fig. 3 is a schematic structural diagram illustrating a locking state of a locking member of a drawer of a power amplifier structure provided in the present application;
fig. 4 is a schematic structural diagram illustrating a released state of a locking member of a drawer of a power amplifier structure provided in the present application;
fig. 5 is a schematic diagram of a protective screening structure of a pull-out box of a power amplifier structure provided in the present application;
in the figure: 100. a chassis; 101. a box body; 1011. a first U-shaped tab; 1012. an insertion opening; 102. a box cover; 1021. a cover plate; 1022. a connecting plate; 103. a side dam; 1031. a lock hole; 104. a placement groove; 105. a second interstitial space; 106. a power input control module; 201. a box is drawn out; 2011. a first avoidance port; 2012. an air inlet hole; 2013. a label slot; 2014. a second avoidance port; 202. a locking member; 2021. an elastic sheet; 2022. a locking piece; 2023. shifting blocks; 203. a second U-shaped tab; 204. a protective net; 2041. a first vent hole; 2042. a second vent hole; 2043. a third vent hole; 205. and a power amplifier module.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a power amplifier structure.
Referring to fig. 1, an embodiment of a power amplifier structure provided in the embodiment of the present application includes:
a case 100 and at least two drawer boxes 201; a first accommodating cavity is arranged in the case 100; a plurality of placing grooves 104 corresponding to the drawing boxes 201 one by one are arranged in the first accommodating cavity; the drawing box 201 is movably inserted into the placing groove 104 through an insertion hole 1012 which is formed on the chassis 100 and corresponds to the placing groove 104 one by one, and a second accommodating cavity for accommodating the power amplifier module 205 is formed in the drawing box 201.
As shown in fig. 1, according to the above technical solutions, a plurality of placing grooves 104 corresponding to the drawer boxes 201 one to one are arranged in the chassis 100, so that the drawer boxes 201 are convenient to install and place; the corresponding power amplifier module 205 is installed by using the pull box 201, so as to realize the modularization of the power amplifier module 205. By using the drawing and pulling cooperation between the drawing and pulling box 201 and the chassis 100, the drawing and pulling box 201 corresponding to the damaged power amplifier module 205 can be directly replaced for the individual damaged power amplifier module 205, thereby realizing targeted maintenance and replacement. Moreover, the design of the pull-out box 201 type modular structure is realized, for the consumers without corresponding after-sale service points nearby, the pull-out box 201 corresponding to the damaged power amplifier module 205 is disassembled to be sent back to the after-sale service points for maintenance, compared with the traditional method for sending back the whole power amplifier equipment, the repair and transportation cost is saved, and the repair and maintenance are convenient. The whole power amplifier module 205 can be integrally and independently installed in a modularized mode, the power amplifier module 205 of each channel is convenient to disassemble and maintain, and maintenance and replacement are more convenient.
The above is a first embodiment of a power amplifier structure provided in the present application, and the following is a second embodiment of a power amplifier structure provided in the present application, specifically please refer to fig. 1 to 5.
A power amplifier structure, comprising: a case 100 and at least two drawer boxes 201; a first accommodating cavity is arranged in the case 100; a plurality of placing grooves 104 corresponding to the drawing boxes 201 one by one are arranged in the first accommodating cavity; the drawing box 201 is movably inserted into the placing groove 104 through an insertion hole 1012 which is formed on the chassis 100 and corresponds to the placing groove 104 one by one, and a second accommodating cavity for accommodating the power amplifier module 205 is formed in the drawing box 201.
Further, as shown in fig. 1, the chassis 100 may include a case 101 and a case cover 102; the cover 102 is detachably attached to the case 101. The box 101 may be a square structure, and the corresponding box cover 102 is a shape structure adapted to the square structure. Specifically, the case cover 102 may include a cover plate 1021 and two connection plates 1022 respectively corresponding to end walls of two sides of the case 101, the two connection plates 1022 are respectively connected to two edges of the cover plate 1021, and are distributed in a U-shape with the cover plate 1021, and the connection plates 1022 are provided with a plurality of first mounting holes; the two side end walls of the box 101 are respectively provided with a second mounting hole (not shown) matching with the first mounting hole (not shown), and the box cover 102 and the box 101 can be fixedly connected through fasteners such as screws. The structure of the housing 100 constructed by the housing 101 and the cover 102 is easy to disassemble and assemble, and certainly not limited to the above structure, and those skilled in the art can make appropriate changes based on the above structure.
Additionally, a plurality of through holes (not shown) for installing control buttons are formed in the front end wall of the box 101, and the corresponding control buttons are arranged through the through holes, so that the front end wall of the box 101 can form an operation surface, and the operation and the use are convenient for users. Furthermore, the front end wall of the box 101 may be symmetrically provided with first U-shaped pull rings 1011 at two ends, and the first U-shaped pull rings 1011 may be used to conveniently lift and pull the carrying case 100 during transportation.
Further, as shown in fig. 1, the plurality of placement grooves 104 are sequentially distributed along one end wall of the chassis 100 toward the other end wall, and are disposed along the front end wall of the chassis 100 toward the rear end wall. The placing grooves 104 are sequentially arranged in parallel and are arranged along the front end wall of the case 100 towards the rear end wall, so that the internal space of the case 100 can be well utilized, the number of the placing grooves 104 which can be arranged is increased as much as possible, and the internal structure is more compact. In addition, the insertion hole 1012 may be formed in the rear end wall of the casing 100, so that the drawer 201 may be inserted from the rear end wall of the casing 100 toward the front end wall of the casing 100 or the drawer 201 may be pulled out in the reverse direction as shown in fig. 1 when the drawer 201 is inserted and removed. When the drawing box 201 is completely inserted into the chassis 100, the rear end wall of the drawing box 201 is flush with the rear end of the chassis 100, so that the drawing box 201 is prevented from protruding out of the chassis 100 after being assembled, and the appearance is prevented from being influenced.
Further, as shown in fig. 1, a plurality of side stoppers are disposed on the inner bottom wall of the box 101 and sequentially arranged along a direction from one side end wall to the other side end wall of the chassis 100; the placing grooves 104 are respectively formed between two adjacent side stoppers and/or between the side stoppers and the inner side wall of the box body 101.
Specifically, during installation, the first end of the side blocking member may be connected to the inner rear end wall of the box 101, and a first clearance space (not shown) is formed between the second end and the inner front end wall of the box 101, where the first clearance space can be used to install the power input control module 106, to supply power to the power amplifier modules 205 installed in the drawer 201, and to control the power amplifier modules 205. The corresponding control button on the power input control module 106 is secured through the aforementioned through hole in the front end wall of the housing 101. Of course, in this embodiment, one end of the side stopper may not be connected to the inner rear end wall of the box 101, but the side stopper may be connected to the inner rear end wall of the box 101, so that the fixing of the side stopper can be better enhanced.
Further, the side baffle may be composed of two side baffles 103 which are parallel to each other and vertically arranged on the inner bottom wall of the box 101; the two side baffles 103 and the inner bottom wall of the box body 101 enclose a second gap space 105 communicated with the first gap space. The side barrier is designed to be composed of two side barriers 103, so that a second gap space 105 communicating with the first gap space can be formed between the two side barriers 103, which can increase the installation space in the case 101, for the reason that the second gap space 105 can be used for arranging module components for controlling each power amplifier module 205, or for wiring. The internal structure of the cabinet 100 is made more compact. Of course, the side blocking member in this application may be a single side blocking member 103, so that the reserved installation space needs to be redesigned inside the chassis 100, and those skilled in the art can make appropriate changes based on this, which is not limited in particular.
In addition, as shown in fig. 1, a notch (not shown) may be cut in the top of the side guard 103 so that a communication gap for communicating the placement groove 104 is provided between the top of the side guard 103 and the inner top wall of the case cover 102. The adjacent drawing boxes 201 cannot be completely isolated by the side baffle 103, so that the internal gas circulation is better, and the heat dissipation effect is ensured.
In the present application, the side blocking element may also be fixed on the inner top wall of the box cover 102, and specifically, it may be fixed on the inner bottom wall of the box body 101, and those skilled in the art may make appropriate changes based on this, and the details are not limited.
Further, as shown in fig. 1 to fig. 2, a first avoidance opening 2011 is formed on a front end wall of the drawer box 201 extending into the placing groove 104; the opened first avoidance port 2011 may be used to avoid a serial port of the power amplifier module 205, and is used to connect with the power input control module 106. The connection serial port and the serial port correspondingly connected with the power input control module 106 can be designed to be in a plug-in connection mode, so that the power amplifier module 205 in the drawing box 201 can be electrically connected with the power input control module 106 after the drawing box 201 is inserted, and the use is convenient. In this embodiment, taking an eight-channel power amplifier device as an example, two channel modules may be disposed in each corresponding pull box 201, so that the channel modules may be divided into four pull boxes 201. When any channel module is damaged, only the drawing box 201 needs to be replaced or the drawing box 201 needs to be sent back for repair. In addition, the structure of the drawer 201 in the present application may be a rectangular parallelepiped as shown in fig. 1 and fig. 2, and may be formed by fixing two sheet metal shells by fasteners such as screws.
Further, as shown in fig. 1 to 2, the box 201 may be provided with a plurality of air inlet holes 2012 and air outlet holes, wherein the plurality of air inlet holes 2012 are respectively distributed on the front end wall, the top wall and the bottom wall of the box 201. The effect of exhaust vent is that the radiator fan air-out of making things convenient for power amplifier module 205 uses with the cooperation of fresh air inlet 2012, guarantees the inside radiating effect of box 201. The inside intake of air of box body 201 can be guaranteed to multiunit fresh air inlet 2012, and the radiator fan during operation of inside power amplifier module 205 can provide sufficient intake from fresh air inlet 2012 to inside, guarantees the radiating effect.
Further, a label groove 2013 is formed in the top wall of the pull box 201; the tag slot 2013 can be used for attaching a tag, so that information of the power amplifier module 205 in the pull box 201 can be conveniently identified, some necessary information can be provided for maintenance personnel, and a consumer or the maintenance personnel can obtain a corresponding standby pull box 201 according to the tag or obtain a corresponding power amplifier module 205 to realize replacement.
Further, the exhaust vent is opened on the rear end wall of box body 201, is equipped with protection network 204 on the exhaust vent for playing the guard action, guarantees simultaneously that radiator fan's heat dissipation air current can see off through protection network 204. Correspondingly, the protection net 204 can be integrally welded with the rear end wall of the box 201, and certainly, the protection net 204 can also be detachably fixed on the air outlet through fasteners such as screws and the like. Wherein the integral connection can be formed through integral processing, so that subsequent installation procedures can be reduced, and the assembly is convenient.
The structure of the protection net 204 may be as shown in fig. 5, a circular area is disposed in the middle of the protection net 204, a plurality of first ventilation holes 2041 are formed in the circular area, a plurality of second ventilation holes 2042 are uniformly formed around the circumference of the circular area on the protection net 204, and a plurality of third ventilation holes 2043 which are uniformly distributed around the circumference of the circular area are formed outside the second ventilation holes 2042 on the protection net 204. By adopting the arrangement design of the ventilation holes, certain structural strength of the protective net 204 can be ensured, and the ventilation effect is ensured.
In addition, in the present application, a protection net may not be provided, and the first ventilation hole 2041, the second ventilation hole 2042, and the third ventilation hole 2043 may be directly provided according to the distribution and position relationship described above to form a required ventilation hole structure, so that the arrangement of the protection net 204 may be reduced, and the box body may be directly integrally processed, and a person skilled in the art may make appropriate changes based on this, and is not particularly limited.
Further, a second U-shaped pull ring 203 is arranged on the rear end wall of the pull box 201; through setting up second U-shaped pull ring 203, conveniently take out pull box 201 or carry and pull box 201, it is more convenient to use.
Further, a retaining member 202 is included; the drawer 201 is detachably engaged with the cabinet 100 by locking. The locking member 202 may be a pin (not shown), and the pin holes are formed in the top of the casing 100 and the top of the drawer 201, so that after the drawer 201 is inserted into the casing 100, the movement of the drawer 201 is limited by the pin holes, thereby fixing the drawer 201. On the contrary, when the drawing box 201 needs to be drawn out, the bolt only needs to be drawn out, and then the drawing box 201 is drawn out.
Further, as shown in fig. 3 and 4, the locking member 202 may also include an elastic tab 2021 and a locking tab 2022; the elastic sheet 2021 is tightly attached to one inner side wall of the drawing box 201, one end of the elastic sheet is connected with the inner side wall of the drawing box 201, and the other end of the elastic sheet extends out of the rear end wall of the drawing box 201; the locking piece 2022 is fixed on one surface of the elastic piece 2021, which is tightly attached to one inner side wall of the drawing box 201; a second avoidance opening 2014 for the locking sheet 2022 to movably extend out is formed in the position, close to the rear end wall of the drawing box 201, on one inner side wall of the drawing box 201; a lock hole 1031 for the locking piece 2022 to be movably inserted is arranged on the side stopper and one inner side wall of the box 101. The elastic sheet 2021 may be an elastic steel sheet, one end of which may be fixedly connected to the inner side wall of the drawer box 201 by welding, and the other end of which extends out of the rear end wall of the drawer box 201, so as to facilitate the user to toggle. In the locked state, as shown in fig. 3, the elastic piece 2021 is tightly attached to the inner side wall of the drawer 201, so that the locking piece 2022 completely extends out of the drawer 201, and the locking piece 2022 can be inserted into the locking hole 1031 on the box 101 to achieve locking. In a disassembled state, as shown in fig. 4, the elastic piece 2021 may be shifted to make the locking piece 2022 retract into the drawer box 201, and at this time, the locking piece 2022 may also exit from the locking hole 1031, and then the drawer box 201 is pulled out, so as to complete the disassembly. The structure of the locking member 202 can be appropriately modified by those skilled in the art without limitation.
Furthermore, a shifting block 2023 is sleeved and fixed on the other end of the elastic sheet 2021. The shifting block 2023 may be made of plastic or rubber, so that the user can hold the device conveniently, and the shifting operation is more convenient.
In addition, the descriptions of the "front end wall", "rear end wall", etc. in this application are based on the structural orientations shown in fig. 1 and 2, and are only for convenience in describing the embodiments of the application and for simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the embodiments of the application.
According to the technical scheme, the plurality of placing grooves 104 which correspond to the pull-out boxes 201 one to one are arranged in the case 100, so that the pull-out boxes 201 can be conveniently installed and placed; the corresponding power amplifier module 205 is installed by using the pull box 201, so as to realize the modularization of the power amplifier module 205. By using the drawing and matching between the drawing and pulling box 201 and the chassis 100, the power amplifier module 205 which is damaged individually can be directly drawn and detached to form the corresponding drawing and pulling box 201, thereby realizing targeted maintenance and replacement. Moreover, the design of the pull-out box 201 type modular structure is realized, for the consumers without corresponding after-sale service points nearby, the pull-out box 201 corresponding to the damaged power amplifier module 205 is disassembled to be sent back to the after-sale service points for maintenance, compared with the traditional method for sending back the whole power amplifier equipment, the repair and transportation cost is saved, and the repair and maintenance are convenient. The whole power amplifier module 205 can be integrally and independently installed in a modularized mode, the power amplifier module 205 of each channel is convenient to disassemble and maintain, and maintenance and replacement are more convenient.
While the power amplifier structure provided in the present application has been described in detail, those skilled in the art will appreciate that the present disclosure is not limited thereto, and that the present disclosure can be modified in various embodiments and applications.

Claims (10)

1. A power amplifier structure, comprising: the device comprises a case and at least two drawing boxes;
a first accommodating cavity is arranged in the case;
a plurality of placing grooves corresponding to the pull boxes one to one are formed in the first accommodating cavity;
the drawing box is movably inserted into the placing groove through an insertion hole which is formed in the case and corresponds to the placing groove one by one, and a second accommodating cavity for accommodating the power amplifier module is formed in the drawing box.
2. The power amplifier structure as claimed in claim 1, wherein the casing comprises a casing body and a casing cover;
the box cover can be detachably covered on the box body.
3. The power amplifier structure as claimed in claim 2, wherein the plurality of placement grooves are sequentially distributed along a direction from one side end wall to the other side end wall of the casing, and are disposed along a direction from a front end wall to a rear end wall of the casing.
4. The power amplifier structure as claimed in claim 3, wherein the insertion opening is opened in a rear end wall of the cabinet.
5. The power amplifier structure as claimed in claim 4, wherein a plurality of side stoppers are disposed on the bottom wall of the case in sequence along a direction from one side end wall to the other side end wall of the case;
the placing grooves are respectively formed between two adjacent side stoppers and/or between the side stoppers and the inner side wall of the box body.
6. The power amplifier structure as claimed in claim 5, wherein the side stopper has a first end connected to the inner rear end wall of the casing, and a second end forming a first gap space with the inner front end wall of the casing.
7. The power amplifier structure as claimed in claim 5, wherein the side stop member comprises two side stop plates disposed in parallel and perpendicular to the bottom wall of the case;
and a second gap space communicated with the first gap space is formed between the two side baffles and the inner bottom wall of the box body in a surrounding manner.
8. The power amplifier structure as claimed in claim 7, further comprising a locking member;
the drawing box is detachably matched with the case through the locking.
9. The power amplifier structure as claimed in claim 8, wherein the locking member comprises an elastic piece and a locking piece;
the elastic piece is arranged close to one inner side wall of the drawing box, one end of the elastic piece is connected with the inner side wall of the drawing box, and the other end of the elastic piece extends out of the rear end wall of the drawing box;
the locking piece is fixed on one surface of the elastic piece, which is tightly attached to one inner side wall of the drawing box;
a second avoidance opening for the locking sheet to movably extend out is formed in the position, close to the rear end wall of the drawing box, of one inner side wall of the drawing box;
and a lock hole for the locking piece to be movably clamped is formed in the side blocking piece and one inner side wall of the box body.
10. The power amplifier structure as claimed in claim 9, wherein a pick is fixed to the other end of the elastic piece.
CN202010067183.4A 2020-01-20 2020-01-20 Power amplifier structure Pending CN111182433A (en)

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CN202010067183.4A CN111182433A (en) 2020-01-20 2020-01-20 Power amplifier structure

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CN202010067183.4A CN111182433A (en) 2020-01-20 2020-01-20 Power amplifier structure

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CN111182433A true CN111182433A (en) 2020-05-19

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CN205407750U (en) * 2016-02-26 2016-07-27 东莞市三基音响科技有限公司 Novel audio frequency power amplifier
CN109361362A (en) * 2018-12-18 2019-02-19 中国电子科技集团公司第五十四研究所 A kind of solid-state high power amplifier
CN210745559U (en) * 2020-01-20 2020-06-12 天工(广州)音响设备有限公司 Power amplifier structure

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Publication number Priority date Publication date Assignee Title
US6023612A (en) * 1996-07-05 2000-02-08 Thomcast Communications, Inc. Modular transmission system and method
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