A protective power amplifier component

Abstract

The present invention discloses a protective power amplifier assembly in the technical field of power amplifier assemblies, comprising a plurality of power amplifiers and a power divider, and further comprising an upper shell and a lower shell, wherein an isolator is fixedly provided in both the upper shell and the lower shell, and a clamping assembly is provided between the upper shell and the lower shell; a sealing plate is provided at the top of the upper shell and the bottom of the lower shell, and a protective assembly is provided on both sealing plates. The present invention connects all threaded sleeves with the threaded docking screws to achieve the installation of the sealing plates. Under the support of the second supporting spring, when the sealing plates are squeezed, the second supporting spring can buffer and reduce the damage to the sealing plates caused by external impacts. The threaded sleeve and the supporting column as a whole limit the four corners of the power amplifier module. When the connection point of the power amplifier module is detached, the power amplifier module can be limited, which is beneficial to prevent the detached power amplifier module from offsetting and causing damage to the adjacent power amplifier module.

Description

Technical Field

[0001] The present invention relates to the technical field of power amplifier components, in particular to a protective power amplifier component. Background Art

[0002] The power amplifier assembly includes a power splitter and a power amplifier module, which cooperates with multiple power amplifier modules to provide multi-channel transmission RF power.

[0003] The outer shell of existing power amplifier components is mostly a fixed structure. After the power splitter and power amplifier are installed, the outer shell is sealed with a cover, and multiple amplifier modules are installed inside the outer shell and fixed with screws. However, when the connection point of the power amplifier module becomes loose and detached, the detached power amplifier module is likely to cause collision damage to other power amplifier modules.

[0004] Based on this, the present invention designs a protective power amplifier component to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a protective power amplifier assembly to solve the problem raised in the above background art that when the connection point of the power amplifier module becomes loose and detached, the detached power amplifier module is likely to cause collision damage to other power amplifier modules.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a protective power amplifier assembly, comprising a plurality of power amplifiers and a power divider, and further comprising an upper shell and a lower shell, wherein an isolator is fixedly disposed in each of the upper shell and the lower shell, and each of the upper shell and the lower shell is separated into a first cavity and a second cavity by the isolator;

[0007] After being assembled between the upper shell and the lower shell, the two isolators are symmetrically arranged, and the two first cavities are combined and connected to form a first installation cavity, the multiple power amplifiers are respectively arranged in the two second cavities, and the power divider is arranged in the first installation cavity;

[0008] A clamping assembly is provided between the upper shell and the lower shell, and the clamping assembly is used to clamp the upper shell and the lower shell;

[0009] The top of the upper shell and the bottom of the lower shell are both provided with sealing plates, and the two sealing plates are both provided with protective components, which are used to elastically support the sealing plates and provide position limiting protection for the power amplifier.

[0010] As a technical solution of the present invention, each of the power amplifiers is provided with two power amplifier modules, each power amplifier module has a second input interface, and multiple power amplifiers are evenly divided into two groups, and the two groups of power amplifiers are respectively installed on the surface of the isolation body inside the two second cavities.

[0011] As a technical solution of the present invention, the snap-fit ​​assembly includes four connecting ports and four upper snap-fit ​​parts. The four connecting ports are opened at the top of the lower shell body. The four connecting ports are fixedly connected to the lower snap-fit ​​seats. The four lower snap-fit ​​seats are slidably provided with lower snap-fit ​​parts. A first support spring is fixedly connected between the lower snap-fit ​​parts and the lower snap-fit ​​seats. The lower snap-fit ​​seat has a snap interface. A guide slope is opened on the top of the lower snap-fit ​​seat. The four upper snap-fit ​​parts are fixedly connected to the bottom of the upper shell body and are respectively snapped in the four snap interfaces.

[0012] As a technical solution of the present invention, the protective component includes multiple mounting ports, multiple mounting ports are opened on the surface of the sealing plate, multiple mounting ports are rotatably connected to support columns, multiple first ends of the support columns are slidably plugged with plug pins, multiple ends of the plug pins are fixedly connected with threaded sleeves, multiple threaded sleeves are threadedly connected with docking screws, multiple docking screws are fixedly connected to the surface of the isolation body, multiple docking screws are evenly divided into multiple groups, each group has four docking screws, and the four docking screws in the same group are arranged at the four corners of the power amplifier, and second support springs are sleeved on the surfaces of multiple plug pins, and the two ends of the second support spring are respectively fixedly connected to the threaded sleeve and the support column.

[0013] As a technical solution of the present invention, a plurality of elastic limiting members are fixedly connected between the threaded sleeve and the support column. The plurality of elastic limiting members are distributed in a circular array with the plug pin as the axis. The elastic limiting member is a bent body, and the bent body limits the edge of the power amplifier.

[0014] As a technical solution of the present invention, the top of the upper shell and the bottom of the lower shell are both provided with receiving grooves, and the two sealing plates are respectively slidably arranged in the two receiving grooves.

[0015] As a technical solution of the present invention, the upper shell and the lower shell are also separated by an isolating body to form a third cavity, and the two third cavities are butt-jointed and connected to form a third installation cavity. Heat dissipation fins are fixedly installed in the two third cavities, and the two heat dissipation fins are symmetrically arranged. When the two second cavities are butt-jointed and connected, the two heat dissipation fins are combined into a complete heat dissipation body.

[0016] As a technical solution of the present invention, the upper shell and the lower shell are also separated by an isolating body to form a fourth cavity, and the two fourth cavities are combined and connected to form a fourth installation cavity. A first opening is provided on the upper shell and the lower shell, and the two first openings are connected to form a first vent, and the first vent is connected to the fourth installation cavity. A second opening is provided on the upper shell and the lower shell, and the two second openings are connected to form a second vent.

[0017] As a technical solution of the present invention, a first ventilation baffle is provided in the first vent, a heat dissipation fan is fixedly installed on the inner side of the first ventilation baffle, and a second ventilation baffle is provided in the second vent.

[0018] As a technical solution of the present invention, a first docking groove is provided in each of the two first openings, and the top and bottom ends of the first ventilation baffle are respectively inserted into the two first docking grooves; a second docking groove is provided in each of the two second openings, and the two ends of the second ventilation baffle are respectively inserted into the two second docking grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Install the two sealing plates on the top of the upper shell and the bottom of the lower shell respectively, rotate the support column, the support column will drive the threaded sleeve to rotate through the plug pin, and the threaded sleeve will be threadedly connected to the docking screw until all the threaded sleeves are threadedly connected to the docking screw to realize the installation of the sealing plate. Under the support of the second support spring, when the sealing plate is squeezed, the second support spring can buffer and reduce the damage to the sealing plate caused by external impact. The threaded sleeve and the support column as a whole limit the four corners of the power amplifier module. When the connection point of the power amplifier module is detached, the power amplifier module can be limited, which is beneficial to prevent the detached power amplifier module from offsetting and causing damage to the adjacent power amplifier module.

[0021] 2. The entire device, by setting the power amplifier in the upper shell and the lower shell respectively, and facing the position of the sealing plate, when the power amplifier needs to be maintained, the sealing plate can be removed as needed, and the sealing plate where the power amplifier with the problem is located can be removed. In addition, the multiple power amplifier modules of the power amplifier are distributed in two spaces, which is conducive to increasing the distance between the power amplifier modules, providing maintenance space, and reducing the difficulty of maintenance.

[0022] 3. By setting up an elastic limiter, when the sealing plate is impacted, the elastic limiter can assist in buffering the impact force between the threaded sleeve and the support column, and the elastic limiter can always maintain the limit on the edge of the power amplifier module. When the power amplifier module is separated from the connection point, it can be supported by the combined limit of the elastic limiter and the support limiter sleeve to reduce the offset of the power amplifier module.

[0023] 4. The upper shell and the lower shell are separable, so that the heat sink can be separated. During maintenance, it is convenient for the staff to clean the heat sink fins. After the upper shell and the lower shell are connected, a complete heat sink is automatically formed to maintain the heat dissipation of the isolator from the power divider and the power amplifier module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A top view of the upper housing of the present invention;

[0026] Figure 3 This is a first structural schematic diagram of the upper shell and the lower shell of the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of part A;

[0028] Figure 5 A second structural schematic diagram of the upper shell and the lower shell of the present invention;

[0029] Figure 6 is a structural cross-sectional view of the sealing plate of the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of part B;

[0031] Figure 8 It is a structural cross-sectional view of the support column of the present invention;

[0032] Figure 9 is a third structural schematic diagram of the upper shell and the lower shell of the present invention;

[0033] Figure 10 It is a structural schematic diagram of the upper and lower clamping parts of the upper and lower shells of the present invention;

[0034] Figure 11 This is a structural cross-sectional view of the lower connector of the present invention;

[0035] Figure 12 This is a first structural schematic diagram of the upper housing of the present invention;

[0036] Figure 13 This is a second structural schematic diagram of the upper shell of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0038] Upper shell 1, lower shell 2, isolator 3, first cavity 4, second cavity 5, sealing plate 6, power amplifier 7, power amplifier module 701, second input interface 702, power control board 8, power splitter 9, first input interface 901, output interface 902, first connector 10, second connector 11, connection port 12, lower card seat 13, lower card member 14, guide slope 1401, card interface 15, first support spring 16, upper card member 17, installation port 18, Support column 19, first end 1901, second end 1902, adjusting button 20, plug pin 21, threaded sleeve 22, docking screw 23, second support spring 24, elastic limiter 25, accommodating groove 26, third cavity 27, heat dissipating fin 28, fourth cavity 29, first opening 30, second opening 31, first ventilation baffle 32, heat dissipating fan 33, second ventilation baffle 34, first docking groove 35, second docking groove 36, plug interface 37, adjusting pin 38. DETAILED DESCRIPTION

[0039] like Figures 1 to 13 As shown, in one embodiment, a protective power amplifier assembly includes multiple power amplifiers 7 and a power divider 9, and also includes an upper shell 1 and a lower shell 2. An isolator 3 is fixedly disposed in each of the upper shell 1 and the lower shell 2. The upper shell 1 and the lower shell 2 are separated into a first cavity 4 and a second cavity 5 by the isolator 3.

[0040] After the upper shell 1 and the lower shell 2 are assembled, the two isolators 3 are symmetrically arranged, and the two first cavities 4 are combined and connected to form a first installation cavity. The multiple power amplifiers 7 are respectively arranged in the two second cavities 5, and the power divider 9 is arranged in the first installation cavity.

[0041] A snap-fit ​​assembly is provided between the upper shell 1 and the lower shell 2, and the snap-fit ​​assembly is used to snap-fit ​​the upper shell 1 and the lower shell 2;

[0042] Sealing plates 6 are provided on the top of the upper shell 1 and the bottom of the lower shell 2. Protective components are provided on the two sealing plates 6. The protective components are used to elastically support the sealing plates 6 and limit the power amplifier 7.

[0043] Specifically, there are six power amplifiers 7, each power amplifier 7 is provided with two power amplifier modules 701, for a total of twelve power amplifier modules 701, each power amplifier module 701 has a second input interface 702, and the six power amplifiers 7 are evenly divided into two groups, and the two groups of power amplifiers 7 are respectively installed on the surface of the isolation body 3 inside the two second cavities 5.

[0044] Specifically, a power control board 8 is further provided in the first installation cavity, and the back of the power control board 8 is connected to the inner wall of the upper shell 1 and the lower shell 2 respectively; the power divider 9 is connected to the surface of the isolator 3 in the upper shell 1;

[0045] The power divider 9 has a first input interface 901 and twelve output interfaces 902;

[0046] A first connector 10 and a second connector 11 are fixedly connected to the surface of the upper housing 1. The second connector 11 is a power interface and is connected to the power control board 8 via a wire. The first connector 10 is an input connector and is connected to the first input interface 901 of the power divider 9 via a wire. The twelve first output interfaces 902 of the power divider 9 are respectively connected to the second input interfaces 702 of the twelve power amplifier modules 701 via wires.

[0047] The snap-fit ​​assembly includes four connecting ports 12 and four upper snap-fit ​​parts 17. The four connecting ports 12 are opened at the top of the lower shell 2. The four connecting ports 12 are fixedly connected to the lower snap-fit ​​seats 13. The four lower snap-fit ​​seats 13 are slidably provided with lower snap-fit ​​parts 14. A first support spring 16 is fixedly connected between the lower snap-fit ​​parts 14 and the lower snap-fit ​​seats 13. The lower snap-fit ​​seat 13 has a snap interface 15. A guide slope 1401 is opened at the top of the lower snap-fit ​​seat 13. The four upper snap-fit ​​parts 17 are fixedly connected to the bottom of the upper shell 1 and are respectively snapped into the four snap interfaces 15. It should be understood that during the installation process, the upper housing 1 and the lower housing 2 are first aligned, so that the upper clamping member 17 is inserted into the top of the lower clamping seat 13, pressing the guiding inclined surface 1401 until the upper clamping member 17 is aligned with the upper clamping interface 15. Under the action of the first support spring 16, the lower clamping member 14 is reset, so that the clamping interface 15 of the lower clamping member 14 is clamped to the upper clamping member 17, and the upper housing 1 and the lower housing 2 are docked;

[0048] like Figure 1 、 Figure 3 、 Figure 10 and Figure 11 An insertion port 37 is provided on the surface of the lower clamping seat 13, and an adjustment pin 38 is slidably inserted into the insertion port 37. The adjustment pin 38 is fixedly connected to the surface of the lower clamping part 14. When the clamping needs to be canceled, the adjustment pin 38 is pushed to make the lower clamping part 14 move away from the upper clamping part 17, thereby completing the cancellation of the clamping.

[0049] The protective component includes twelve mounting ports 18, and the twelve mounting ports 18 are opened on the surface of the sealing plate 6. The twelve mounting ports 18 are rotatably connected to support columns 19, and the first ends 1901 of the twelve support columns 19 are slidably plugged with plug pins 21. The ends of the twelve plug pins 21 are fixedly connected to threaded sleeves 22, and the twelve threaded sleeves 22 are threadedly connected to docking screws 23. The twelve docking screws 23 are fixedly connected to the surface of the isolation body 3. The twelve docking screws 23 are evenly divided into four groups, and the four docking screws 23 in the same group are arranged at the four corners of the power amplifier 7. The surfaces of the twelve plug pins 21 are all sleeved with second support springs 24, and the two ends of the second support springs 24 are respectively fixedly connected to the threaded sleeves 22 and the support columns 19.

[0050] Specifically, the second end 1902 of the support column 19 is fixedly connected with an adjustment button 20 to facilitate rotation adjustment by staff.

[0051] It should be understood that after the upper shell 1 and the lower shell 2 are docked and installed, the two sealing plates 6 are respectively installed on the top of the upper shell 1 and the bottom of the lower shell 2, and the support column 19 is rotated. The support column 19 will drive the threaded sleeve 22 to rotate through the plug pin 21, and the threaded sleeve 22 will be threadedly connected with the docking screw 23 until all the threaded sleeves 22 are threadedly docked with the docking screw 23, thereby realizing the installation of the sealing plate 6. Under the support of the second support spring 24, when the sealing plate 6 is squeezed, the second support spring 24 can buffer and reduce the damage to the sealing plate 6 caused by external impact. The threaded sleeve 22 and the support column 19 as a whole limit the four corners of the power amplifier module 701. When the connection point of the power amplifier module 701 is detached, the power amplifier module 701 can be limited, which is conducive to preventing the detached power amplifier module 701 from offsetting and causing damage to the adjacent power amplifier module 701.

[0052] The entire device sets the power amplifier 7 in the upper shell 1 and the lower shell 2 respectively, and faces the sealing plate 6. When the power amplifier 7 needs to be maintained, the sealing plate 6 can be removed as needed. The sealing plate 6 where the power amplifier 7 with the problem is located can be removed. In addition, the multiple power amplifier modules 701 of the power amplifier 7 are distributed in two spaces, which is conducive to increasing the distance between the power amplifier modules 701, providing maintenance space, and reducing the difficulty of maintenance.

[0053] like Figure 8As shown, in one embodiment, a plurality of elastic limiting members 25 are fixedly connected between the threaded sleeve 22 and the support column 19. The plurality of elastic limiting members 25 are distributed in a circular array with the plug pin 21 as the axis. The elastic limiting members 25 are bent bodies that limit the edge of the power amplifier 7. It should be understood that by providing the elastic limiting members 25, when the sealing plate 6 is impacted, the elastic limiting members 25 can assist in buffering the impact force between the threaded sleeve 22 and the support column 19, and the elastic limiting members 25 can always maintain the limit on the edge of the power amplifier module 701. When the power amplifier module 701 is separated from the connection point, it can be supported by the combined limit of the elastic limiting members 25 and the support limiting sleeve, thereby reducing the deviation of the power amplifier module 701.

[0054] Furthermore, when the sealing plate 6 is squeezed, the support column 19 and the threaded sleeve 22 can provide positional support for the sealing plate 6 to prevent the sealing plate 6 from approaching the power amplifier module 701 , thereby facilitating protection of the power amplifier module 701 .

[0055] like Figure 1 and Figure 2 As shown, in one embodiment, the top of the upper shell 1 and the bottom of the lower shell 2 are each provided with a receiving groove 26, and the two sealing plates 6 are respectively slidably disposed in the two receiving grooves 26. It should be understood that by providing the receiving grooves 26, the sealing plates 6 can be limited in position. When installing the sealing plates 6, aligning the sealing plates 6 with the receiving grooves 26 indicates that the threaded sleeve 22 and the docking screw 23 are aligned. The docking can be completed by simply rotating the support column 19, which reduces the difficulty of installing the sealing plates 6 for the staff.

[0056] like Figure 9 and Figure 12 As shown, in one embodiment, the upper shell 1 and the lower shell 2 are further separated by the isolator 3 to form a third cavity 27. The two third cavities 27 are connected to form a third installation cavity. Heat dissipation fins 28 are fixedly installed in the two third cavities 27. The two heat dissipation fins 28 are symmetrically arranged. When the two second cavities 5 are connected to each other, the two heat dissipation fins 28 are combined into a complete heat dissipation body. It should be understood that the upper shell 1 and the lower shell 2 are separable, so that the heat dissipation body can be separated. During maintenance, it is convenient for staff to clean the heat dissipation fins 28. After the upper shell 1 and the lower shell 2 are connected, a complete heat dissipation body is automatically formed to maintain the heat dissipation of the heat transferred from the power divider 9 and the power amplifier module 701 on the isolator 3.

[0057] like Figure 9 and Figure 12As shown, in one embodiment, the upper shell 1 and the lower shell 2 are further separated by the isolating body 3 to form a fourth cavity 29. The two fourth cavities 29 are combined and connected to form a fourth installation cavity. The upper shell 1 and the lower shell 2 are each provided with a first opening 30. The two first openings 30 are connected to form a first vent when they are connected. The first vent is connected to the fourth installation cavity. The upper shell 1 and the lower shell 2 are each provided with a second opening 31. The two second openings 31 are connected to form a second vent when they are connected. It should be understood that by providing the first vent and the second vent, both ends of the heat sink are connected to the outside. External air can pass through the first vent, the fourth installation cavity, the gap between the fins of the heat sink, and the second vent to form an airflow, which is conducive to accelerating the heat dissipation of the heat sink.

[0058] like Figure 3 and Figure 5 As shown, in one embodiment, a first ventilation baffle 32 is provided in the first vent, a heat dissipation fan 33 is fixedly installed inside the first ventilation baffle 32, and a second ventilation baffle 34 is provided in the second vent.

[0059] Specifically, the first ventilation baffle 32 is provided with an arc-shaped ventilation opening, and the second ventilation baffle 34 is provided with a strip-shaped ventilation opening.

[0060] It should be understood that by providing the first ventilation baffle 32 and the second ventilation baffle 34, protection of the first vent and the second vent is achieved, which helps prevent external objects from entering and causing damage to the heat sink.

[0061] When the heat dissipation fan 33 is started, the heat dissipation fan 33 blows air toward the heat dissipation body, thereby accelerating the flow of gas and thus facilitating accelerated heat dissipation.

[0062] Each of the two first openings 30 defines a first docking groove 35, and the top and bottom ends of the first ventilation baffle 32 are respectively inserted into the two first docking grooves 35. Each of the two second openings 31 defines a second docking groove 36, and the two ends of the second ventilation baffle 34 are respectively inserted into the two second docking grooves 36. It should be understood that during the docking process between the upper shell 1 and the lower shell 2, the top and bottom ends of the first ventilation baffle 32 are respectively inserted into the two first docking grooves 35, and the two ends of the second ventilation baffle 34 are respectively inserted into the two second docking grooves 36, without the need for bolts to fix them, which facilitates installation.

Claims

1. A protective power amplifier assembly, comprising a plurality of power amplifiers (7) and a power splitter (9), characterized in that: It also includes an upper shell (1) and a lower shell (2), wherein an isolating body (3) is fixedly provided in each of the upper shell (1) and the lower shell (2), and the upper shell (1) and the lower shell (2) are separated into a first cavity (4) and a second cavity (5) by the isolating body (3); After being assembled between the upper shell (1) and the lower shell (2), the two isolators (3) are symmetrically arranged, and the two first cavities (4) are combined and communicated to form a first installation cavity, the plurality of power amplifiers (7) are respectively arranged in the two second cavities (5), and the power divider (9) is arranged in the first installation cavity; A snap-fit ​​assembly is provided between the upper shell (1) and the lower shell (2), and the snap-fit ​​assembly is used to snap-fit ​​the upper shell (1) and the lower shell (2); The top of the upper shell (1) and the bottom of the lower shell (2) are both provided with sealing plates (6), and protective components are provided on both sealing plates (6), and the protective components are used to elastically support the sealing plates (6) and to limit and protect the power amplifier (7); The protective component includes a plurality of mounting openings (18), wherein the plurality of mounting openings (18) are opened on the surface of the sealing plate (6), and a support column (19) is rotatably connected in the plurality of mounting openings (18), and a plug pin (21) is slidably plugged into the first end (1901) of the plurality of support columns (19), and the ends of the plurality of plug pins (21) are fixedly connected to a threaded sleeve (22), and a docking screw (23) is threadedly connected in the plurality of threaded sleeves (22), and the plurality of docking screws (23) are fixedly connected to the surface of the isolation body (3), and the plurality of docking screws (23) are evenly divided into a plurality of groups, and the number of docking screws (23) in each group is four, and the four docking screws (23) in the same group are arranged at the four corners of the power amplifier (7), and a second support spring (24) is sleeved on the surface of the plurality of plug pins (21), and the two ends of the second support spring (24) are fixedly connected to the threaded sleeve (22) and the support column (19), respectively.

2. The protective power amplifier assembly according to claim 1, characterized in that: Each power amplifier (7) is provided with two power amplifier modules (701), each power amplifier module (701) has a second input interface (702), and the plurality of power amplifiers (7) are evenly divided into two groups, and the two groups of power amplifiers (7) are respectively mounted on the surface of the isolating body (3) inside the two second cavities (5).

3. The protective power amplifier assembly according to claim 1, characterized in that: The snap-fit ​​assembly comprises four connecting ports (12) and four upper snap-fit ​​members (17). The four connecting ports (12) are provided at the top of the lower shell (2). The four connecting ports (12) are fixedly connected to the lower snap-fit ​​seats (13). The four lower snap-fit ​​seats (13) are slidably provided with lower snap-fit ​​members (14). A first supporting spring (16) is fixedly connected between the lower snap-fit ​​member (14) and the lower snap-fit ​​seat (13). The lower snap-fit ​​seat (13) has a snap interface (15). A guiding slope (1401) is provided at the top of the lower snap-fit ​​seat (13). The four upper snap-fit ​​members (17) are fixedly connected to the bottom of the upper shell (1) and are respectively snap-fitted into the four snap interfaces (15).

4. The protective power amplifier assembly according to claim 1, characterized in that: A plurality of elastic limiting members (25) are fixedly connected between the threaded sleeve (22) and the support column (19), and the plurality of elastic limiting members (25) are distributed in a ring array with the plug pin (21) as the axis. The elastic limiting members (25) are bent bodies, and the bent bodies limit the edge of the power amplifier (7).

5. A protective power amplifier assembly according to any one of claims 1 to 4, characterized in that: The top of the upper shell (1) and the bottom of the lower shell (2) are both provided with receiving grooves (26), and the two sealing plates (6) are respectively slidably arranged in the two receiving grooves (26).

6. The protective power amplifier assembly according to claim 5, characterized in that: The upper shell (1) and the lower shell (2) are further separated by an isolating body (3) to form a third cavity (27). The two third cavities (27) are butt-jointed and connected to form a third installation cavity. Heat dissipation fins (28) are fixedly installed in the two third cavities (27). The two heat dissipation fins (28) are symmetrically arranged. When the two second cavities (5) are butt-jointed and connected, the two heat dissipation fins (28) are combined into a complete heat dissipation body.

7. The protective power amplifier assembly according to claim 6, characterized in that: The upper shell (1) and the lower shell (2) are further separated by an isolating body (3) to form a fourth cavity (29), and the two fourth cavities (29) are combined and connected to form a fourth installation cavity. The upper shell (1) and the lower shell (2) are both provided with a first opening (30), and the two first openings (30) are connected to form a first vent, and the first vent is connected to the fourth installation cavity. The upper shell (1) and the lower shell (2) are both provided with a second opening (31), and the two second openings (31) are connected to form a second vent.

8. The protective power amplifier assembly according to claim 7, characterized in that: A first ventilation baffle (32) is provided in the first vent, a heat dissipation fan (33) is fixedly installed inside the first ventilation baffle (32), and a second ventilation baffle (34) is provided in the second vent.

9. The protective power amplifier assembly according to claim 8, characterized in that: A first docking groove (35) is provided in each of the two first openings (30), and the top and bottom ends of the first ventilation baffle (32) are respectively inserted into the two first docking grooves (35). A second docking groove (36) is provided in each of the two second openings (31), and the two ends of the second ventilation baffle (34) are respectively inserted into the two second docking grooves (36).

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