Linear array power amplifier capable of being connected at multiple points

Abstract

The utility model discloses a linear array power amplifier capable of multi-point connection, and particularly relates to the technical field of linear array power amplifiers, which comprises a linear array power amplifier main body, an operation panel is fixedly arranged at the front end of the linear array power amplifier main body, a connecting assembly is fixedly arranged at the rear end of the linear array power amplifier main body, and the connecting assembly comprises a plurality of audio input connectors and a plurality of audio output connectors. Protection assemblies are arranged on the front side and the rear side of the top of the linear array power amplifier body, each protection assembly comprises a protection plate, and the protection plates are installed on the top of the linear array power amplifier body through rotating shafts. A plurality of audio input connectors and a plurality of audio output connectors are arranged on the back face of the linear array power amplifier body, so that the linear array power amplifier has a multi-point connection function, the two protection plates respectively protect the operation panel and the connection assembly, the operation panel can be effectively prevented from being touched by mistake, and an audio connecting line can be effectively prevented from being accidentally loosened or damaged. And the audio connecting line is reinforced by means of the fixing plate, so that the signal transmission stability of the linear array power amplifier main body can be further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear array power amplifier technical field, more specifically, the linear array power amplifier of multipoint connection. BACKGROUND

[0002] Linear array power amplifier is a kind of power amplifier specially designed for linear array loudspeaker system, and has a wide range of applications in professional audio field.The existing linear array power amplifier usually has multiple independent channels, each channel can independently drive a group of loudspeakers, can meet the driving demand of multiple loudspeakers in linear array loudspeaker system, realizes the accurate control and distribution to sound.For example, the utility model discloses a kind of multi-channel power amplifier machine, and the utility model can guarantee the independence of audio input and audio output by setting multiple audio output connection holes and multiple audio input connection holes, even if power amplifier machine body is simultaneously connected to multiple audio equipment, the audio output connection hole group of mutual independence will not be affected, to ensure the independent output of audio power.

[0003] But the above prior art has the following problems when using: linear array power amplifier in use, operator is easy to mispress the button on operation panel, and the audio transmission line on the back of linear array power amplifier is prone to loose due to collision, in turn can affect the transmission stability of linear array power amplifier main signal, based on this, the utility model provides a kind of linear array power amplifier of multipoint connection. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a linear array power amplifier of multipoint connection, which is equipped with a plurality of audio input connectors and a plurality of audio output connectors on the back of the linear array power amplifier main body, so that it has the function of multipoint connection, and two protective plates protect the operation panel and the connecting assembly, which can effectively prevent the operation panel from being mispressed and the audio connecting line from being accidentally loosened or damaged. With the help of the fixing plate, the stability of the signal transmission of the linear array power amplifier main body can be further improved to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a linear array power amplifier of multipoint connection, comprising a linear array power amplifier main body, an operation panel is fixedly arranged at the front end of the linear array power amplifier main body, a connecting assembly is fixedly arranged at the rear end of the linear array power amplifier main body, the connecting assembly comprises a plurality of audio input connectors and a plurality of audio output connectors, protective assemblies are arranged on the top of the linear array power amplifier main body on both sides, the two protective assemblies each comprise a protective plate, the protective plate is installed on the top of the linear array power amplifier main body through a rotating shaft, for protecting the operation panel and the connecting assembly, an opening is formed in the protective plate located at the rear of the linear array power amplifier main body, and two fixing assemblies are arranged in the opening in a vertical arrangement.

[0006] In a preferred embodiment, the inner walls of the two protective plates are each provided with a rectangular groove, and a lighting lamp is fixed in the rectangular groove; the lighting lamp illuminates the operation panel and the connecting assembly, so as to facilitate the use of the linear array power amplifier main body in a dim environment.

[0007] In a preferred embodiment, the two fixing assemblies each include two fixing plates which are attached to each other and are each provided with a semicircular groove on one side; an audio connection line is inserted between the two semicircular grooves; and each fixing plate is detachably connected to the protective plate; the fixing plates are used to reinforce the audio transmission line of the connecting assembly, so as to improve the stability of the audio transmission line and further improve the stable transmission of the signal of the linear array power amplifier main body.

[0008] In a preferred embodiment, the outer walls of the two protective plates are each provided with a rectangular through hole which is arranged below the rectangular groove; when it is necessary to open the protective plate, a finger of an operator can be inserted into the rectangular through hole to hold the protective plate and open it, so that the protective plate is more convenient to use.

[0009] In a preferred embodiment, the bottoms of the two protective plates are each provided with an embedding groove in which a rubber strip is fixed; the rubber strip is soft, so that when the protective plate is closed, the rubber strip does not generate noise when it contacts a table top.

[0010] In a preferred embodiment, the bottom of the linear array power amplifier main body is fixed with a plurality of supporting foot pads which are uniformly distributed on the bottom of the linear array power amplifier main body; the supporting foot pads can support the linear array power amplifier main body to be stably placed, and at the same time, gaps are left between the bottom of the linear array power amplifier main body and a table top, so as to facilitate the air circulation and heat dissipation.

[0011] In a preferred embodiment, the rear end of the linear array power amplifier main body is fixed with a power connector, two heat dissipation fans and a plurality of switches; the plurality of switches are one-to-one corresponding to a plurality of audio input connectors and a plurality of audio output connectors; the power connector, the two heat dissipation fans and the plurality of switches are arranged on one side of the connecting assembly; the heat dissipation fans are arranged to improve the heat dissipation effect of the linear array power amplifier main body; and the plurality of switches are arranged to facilitate the opening and closing of the corresponding audio input connectors and audio output connectors.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] 1. The utility model discloses a plurality of audio input connectors and a plurality of audio output connectors are arranged on the back of the linear array power amplifier main body, so that the linear array power amplifier main body has a multi-point connection function; meanwhile, two protective plates are additionally arranged to protect the operation panel and the connecting assembly; the operation panel can be effectively prevented from being touched by mistake, and the audio connection line can be prevented from being loosened or damaged by accident; in addition, the audio connection line connected to the connecting assembly is fixed by the fixing plates, so that the stability of the signal transmission of the linear array power amplifier main body can be further improved.

[0014] 2、By setting the lighting lamp in the inner wall of the two protection plates, the operator can obtain sufficient illumination when using the linear array power amplifier main body in a dim environment, which not only facilitates the operator to accurately control the linear array power amplifier main body through the operation panel, but also ensures that they accurately connect the audio transmission line. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the overall structure of the utility model;

[0016] Figure 2 It is a front view of the utility model; Figure 1

[0017] Figure 3 It is a schematic view of the protection plate protection of the utility model;

[0018] Figure 4 It is a front view of the utility model; Figure 3

[0019] Figure 5 It is a bottom view of the overall structure of the utility model;

[0020] Figure 6 It is a bottom view of the protection plate of the utility model.

[0021] The reference signs are: 1, linear array power amplifier main body; 2, operation panel; 3, connecting assembly; 4, protection assembly; 5, fixed assembly; 6, rectangular groove; 7, lighting lamp; 8, rectangular through hole; 9, embedded groove; 10, rubber strip; 11, supporting foot pad; 12, power connector; 13, cooling fan; 14, switch;

[0022] 31, audio input connector; 32, audio output connector;

[0023] 41, protection plate; 42, rotating shaft; 43, opening;

[0024] 51, fixed plate; 52, semicircular groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The accompanying drawings referred to in the description of the utility model are referred to in the description of the utility model. Figures 1-6 ​​The utility model provides a line array power amplifier of many point connection, including line array power amplifier main part 1, line array power amplifier main part 1 front end is fixed with operating panel 2, line array power amplifier main part 1 rear end is fixed with connecting assembly 3, connecting assembly 3 includes a plurality of audio input connector 31 and a plurality of audio output connector 32, line array power amplifier main part 1 top front and back both sides are equipped with protection assembly 4, two protection assembly 4 all include protection plate 41, protection plate 41 is installed through pivot 42 in line array power amplifier main part 1 top, for protecting operating panel 2 and connecting assembly 3, the protection plate 41 behind line array power amplifier main part 1 is equipped with opening 43, sets up opening 43 and is convenient for placing the audio transmission line connected with connecting assembly 3.

[0027] The opening 43 is provided with two fixed assemblies 5 distributed above and below, specifically, the two fixed assemblies 5 each include two fixed plates 51 attached above and below, the two fixed plates 51 each have a semicircular groove 52 formed on one side close to each other, the audio connection line is inserted between the two semicircular grooves 52, and each fixed plate 51 is detachably connected with the protection plate 41. The fixed plate 51 can be used to reinforce the audio transmission line connected with the connecting assembly 3.

[0028] In actual use, the operator first flips the two protection plates 41 to the top of the line array power amplifier main part 1, then connects the audio connection lines of the plurality of audio devices with the plurality of audio input connectors 31 and the plurality of audio output connectors 32, thereby achieving the multi-point connection of the line array power amplifier main part 1. After connecting the audio connection lines, the operator re-closes the protection plates 41, and at the same time, clamps the two fixed plates 51 on the two rows of audio connection lines distributed above and below, and then fixes the fixed plates 51 and the protection plates 41 together. The line array power amplifier main part 1 can be opened, and the operating panel 2 can be used for regulation and control. The two protection plates 41 protect the operating panel 2 and the connecting assembly 3, respectively, which can avoid accidental touching of the operating panel 2 and can avoid loosening of the audio connection lines affecting the signal transmission stability between the line array power amplifier main part 1 and the audio devices.

[0029] In the embodiment, the outer wall of each of the two protection plates 41 is formed with a rectangular through hole 8, which is arranged below the rectangular groove 6. When the operator needs to open the protection plate 41, he or she can insert his or her fingers into the rectangular through hole 8 to hold the protection plate 41 and flip it open, which is more convenient to use.

[0030] In this embodiment, a power connector 12, two cooling fans 13, and multiple switches 14 are fixedly provided at the rear end of the line array power amplifier body 1. The multiple switches 14 correspond one-to-one with multiple audio input connectors 31 and multiple audio output connectors 32. The power connector 12, two cooling fans 13, and multiple switches 14 are all located on one side of the connecting component 3. The cooling fans 13 are provided to improve the heat dissipation effect of the line array power amplifier body 1, and the multiple switches 14 are provided to facilitate the control of the opening and closing of the corresponding audio input connectors 31 and audio output connectors 32.

[0031] Refer to the instruction manual appendix Figures 1-6 Both protective plates 41 have rectangular grooves 6 on their inner walls, and lighting lamps 7 are fixedly installed inside the rectangular grooves 6. Both protective plates 41 have grooves 9 on their bottoms, and rubber strips 10 are fixedly installed inside the grooves 9. Because the rubber strips 10 at the bottom of the protective plates 41 are made of soft material, they will not produce noise when they come into contact with the table when the protective plates 41 are closed.

[0032] By installing lights 7 on the inner walls of both protective plates 41, when the line array amplifier body 1 is used in a dim environment, the operator can turn on the lights 7 and clearly use the operation panel 2 for adjustment, while also facilitating the connection of audio transmission lines in a dim environment.

[0033] Furthermore, multiple support feet 11 are fixedly provided at the bottom of the line array power amplifier body 1. The multiple support feet 11 are evenly distributed at the bottom of the line array power amplifier body 1. The support feet 11 can support the line array power amplifier body 1 to be placed stably, while leaving a gap between the bottom of the line array power amplifier body 1 and the tabletop to facilitate air circulation and heat dissipation.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A line array amplifier capable of multi-point connection, comprising a line array amplifier body (1), wherein an operation panel (2) is fixedly provided at the front end of the line array amplifier body (1), and a connection component (3) is fixedly provided at the rear end of the line array amplifier body (1), wherein the connection component (3) includes multiple audio input connectors (31) and multiple audio output connectors (32), characterized in that: The linear array power amplifier main body (1) top front and back sides are equipped with protection assemblies (4); Two protection assemblies (4) include protection plates (41), which are installed on the linear array power amplifier main body (1) top through rotating shafts (42), used for protecting the operation panel (2) and the connecting assembly (3), and the protection plate (41) behind the linear array power amplifier main body (1) is equipped with an opening (43), and the opening (43) is equipped with two fixed assemblies (5) distributed above and below.

2. The multi-point connectable linear array power amplifier of claim 1, wherein: The inner walls of the two protection plates (41) are processed with rectangular grooves (6), and the rectangular grooves (6) are fixedly equipped with lighting lamps (7).

3. The multi-point connectable linear array power amplifier of claim 1, wherein: Two fixed assemblies (5) include two fixed plates (51) above and below, and the side close to each other of the two fixed plates (51) is processed with a semicircular groove (52), and the audio connection line is inserted between the two semicircular grooves (52), and each fixed plate (51) is detachably connected with the protection plate (41).

4. The multi-point connectable linear array power amplifier of claim 2, wherein: The outer walls of the two protection plates (41) are processed with rectangular through holes (8), and the rectangular through holes (8) are arranged below the rectangular grooves (6).

5. The multi-point connectable linear array power amplifier of claim 1, wherein: The bottoms of the two protection plates (41) are processed with embedding grooves (9), and the embedding grooves (9) are fixedly equipped with rubber strips (10) inside.

6. The multi-point connectable linear array power amplifier of claim 1, wherein: The linear array power amplifier main body (1) bottom is fixedly equipped with a plurality of supporting foot pads (11), and the plurality of supporting foot pads (11) are evenly distributed on the linear array power amplifier main body (1) bottom.

7. The multi-point connectable linear array power amplifier of claim 1, wherein: The rear end of the linear array power amplifier main body (1) is fixedly equipped with a power connector (12), two cooling fans (13) and a plurality of switches (14), the plurality of switches (14) are one-to-one corresponding to the plurality of audio input connectors (31) and the plurality of audio output connectors (32), and the power connector (12), the two cooling fans (13) and the plurality of switches (14) are arranged on one side of the switch (14).

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