Power amplifier and uav countermeasure device

Abstract

The embodiment of the application relates to the technical field of unmanned aerial vehicle countermeasure, and discloses a power amplifier and unmanned aerial vehicle countermeasure equipment, the power amplifier comprises at least one power amplifier unit, the power amplifier unit comprises a shell, a first air vent is formed in one side of the shell along a first direction, a handle is arranged on the other side of the shell along the first direction, a second air vent is formed in at least one side wall of the shell along a second direction, the first direction is perpendicular to the second direction, a plurality of radiating fins are arranged on the shell and extend from the first air vent to the second air vent, and a radiating air duct is formed between adjacent two radiating fins, the radiating air duct is used for air flow to pass through, so that the power amplifier unit is radiated. Through the above mode, the embodiment of the application realizes the effects that the power amplifier unit is easy to replace, the radiating is reliable, and the disassembly and assembly are safe.

Description

Technical Field

[0001] This application relates to the field of drone countermeasures technology, specifically to a power amplifier and a detection device. Background Technology

[0002] With the widespread adoption of drone technology and the continuous expansion of its application scenarios, low-altitude security threats have become a global challenge, with frequent incidents of drones intruding into sensitive locations and battlefields to carry out missions. As more and more drones with unconventional modulation frequency band modifications, low-frequency bands, and high flexibility emerge, countering drones is becoming increasingly difficult. To effectively counter different types of drones, users need to quickly match and replace the power amplifier units of their countermeasures equipment with those corresponding to the target characteristics.

[0003] However, in most current drone countermeasures equipment, the power amplifier unit's power amplifier components and inverter modules are directly installed inside the device. Replacement requires disassembling the entire unit and then replacing each component individually. This is not only time-consuming and labor-intensive, but also inconvenient. Furthermore, it carries the risk of damage to the heat-conducting medium due to movement of the interface, leading to decreased heat dissipation performance and directly impacting power output and countermeasure effectiveness. Therefore, developing a power amplifier unit that is easy to replace, has reliable heat dissipation, and is safe to install and disassemble has become a critical need that the industry urgently needs to address. Summary of the Invention

[0004] In view of the above problems, this application provides a power amplifier and a drone countermeasure device to solve the problems of inconvenient disassembly and assembly and unstable heat dissipation performance of existing power amplifier units.

[0005] According to one aspect of the embodiments of this application, a power amplifier is provided, the power amplifier including at least one power amplifier unit; the power amplifier unit includes a housing, a first vent is provided on one side of the housing along a first direction, a handle is provided on the other side of the housing along the first direction, and a second vent is provided on at least one side wall of the housing along a second direction, the first direction being perpendicular to the second direction; a plurality of heat sinks are provided on the housing, extending curvedly from the first vent to the second vent, and a heat dissipation channel is formed between adjacent heat sinks, the heat dissipation channel being used for airflow to pass through, so as to dissipate heat from the power amplifier unit.

[0006] In one alternative embodiment, the interior of the housing has an installation space for mounting components, and a heat dissipation space separated from the installation space is provided on one side of the housing. Both the first vent and the second vent are connected to the heat dissipation space, and a heat sink is disposed within the heat dissipation space. A heat insulation cavity is formed inside the housing between the heat dissipation space and the handle.

[0007] In one alternative embodiment, the second vent is located on the side wall of the housing near the handle end, and the heat sink is divided into a first segment and a second segment from the first vent to the second vent, the first segment extending in a straight line along a first direction, and the second segment extending in a curved manner from the end connected to the first segment to the end located at the second vent.

[0008] In one alternative embodiment, the power amplifier further includes a mounting bracket with a connector at one end along a first direction for inserting the power amplifier unit from the end away from the handle; the mounting bracket is provided with a slide rail extending along the first direction, and the housing is provided with a sliding part for slidingly engaging with the slide rail to allow the power amplifier unit to slide into or out of the mounting bracket along the first direction.

[0009] In one alternative embodiment, the handle includes a lifting section and a locking section fixed to each other, the lifting section and the locking section being arranged at an included angle; the connection between the lifting section and the locking section is rotatably connected to the housing, and the handle can rotate relative to the housing about an axis perpendicular to a first direction; the handle can rotate between an open state and a closed state; in the open state, the lifting section protrudes from the outer surface of the power amplifier unit along the first direction; in the closed state, the lifting section is fitted to the outer surface of the power amplifier unit, or the lifting section is embedded in the power amplifier unit; the fixing bracket has an annular locking groove on the edge of the insertion interface, the locking groove has an opening at one end facing the first direction, and the locking section has a locking part at the end opposite to the lifting section; when the handle is in the open state and the power amplifier unit is inserted into the insertion interface, the locking part enters the locking groove from the opening, and as the handle rotates from the open state to the closed state, the locking part slides along the locking groove and abuts against the inner wall of the locking groove along the first direction for limitation.

[0010] In one alternative configuration, the angle between the lifting section and the locking section is greater than or equal to 90 degrees.

[0011] In one alternative embodiment, a receiving groove is provided at one end of the housing along a first direction, the receiving groove being used to receive the lifting section when the handle is turned to the closed state; an elastic abutment is provided on the inner side wall of the receiving groove, the elastic abutment being used to abut against the lifting section when the handle is in the closed state.

[0012] In one alternative embodiment, the power amplifier unit includes a first power amplifier unit and a second power amplifier unit. Both the first and second power amplifier units have multiple heat sinks on their housings. The multiple heat sinks on the first power amplifier unit and the multiple heat sinks on the second power amplifier unit are aligned and attached to each other along a third direction, which is perpendicular to both the first and second directions.

[0013] In one alternative embodiment, a receiving cavity is formed between the heat sink and the first or second vent; the power amplifier also includes a fan assembly, which is fixedly disposed within the receiving cavity and is used to drive airflow along the heat dissipation duct.

[0014] According to another aspect of the embodiments of this application, a drone countermeasure device is provided, which includes the power amplifier described in any of the above claims.

[0015] This application embodiment achieves a modular design for the power amplifier unit through a housing, facilitating the assembly and disassembly of the power amplifier unit on the drone countermeasure device. The housing also features a handle for easy installation and carrying of the power amplifier. Furthermore, the housing includes two vents and multiple heat sinks, forming a cooling airflow channel extending from one vent to the other. The airflow through this channel cools the power amplifier unit, ensuring stable heat dissipation. Simultaneously, the first and second vents and the handle are located on different sides of the housing, isolating the airflow path from the handle. When airflow passes through the two vents, its trajectory avoids the handle area. Even with prolonged use of the power amplifier, the handle area remains relatively cool, effectively preventing burns from hot airflow when pulling, pushing, or lifting the power amplifier, thus improving operational safety and user experience.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A perspective view of the power amplifier provided in an embodiment of this application is shown; Figure 2 A perspective view of the power amplifier provided in an embodiment of this application is shown from another angle; Figure 3 An exploded view of a partial structure of the power amplifier provided in an embodiment of this application is shown; Figure 4 An exploded view of the power amplifier provided in an embodiment of this application is shown; Figure 5 A perspective view of the power amplifier provided in an embodiment of this application with the handle closed is shown; Figure 6 A perspective view of the power amplifier provided in an embodiment of this application with its handle in the open position is shown; Figure 7 A perspective view of the mounting bracket in the power amplifier provided in an embodiment of this application is shown; Figure 8 A perspective view of the handle in the power amplifier provided in an embodiment of this application is shown; Figure 9 A partial structural schematic diagram of the housing in the power amplifier provided in an embodiment of this application is shown; Figure 10 The diagram illustrates an application scenario of the drone countermeasure device provided in this application embodiment.

[0018] The reference numerals in the detailed embodiments are as follows: 1. Unmanned Aerial Vehicle (UAV) Countermeasure Equipment; 10. Power Amplifier; 100. Power Amplifier Unit; 101. First power amplifier unit; 102. Second power amplifier unit; 110. Power amplifier assembly; 120. Inverter module; 130. Housing; 1301. Bottom shell; 1302. Top cover; 1303. Installation space; 1304. Base plate; 1305. Heat dissipation space; 1306. Heat insulation cavity; 1307. Baffle; 140. Fan assembly; 150. Protective cover; 160. Mounting bracket; 131. First vent; 132. Handle; 1321. Lifting section; 1322. Locking section; 1323. Locking part; 133. Second vent; 134. Heat sink; 1341. First section; 1342. Second section; 135. Heat dissipation duct; 136. Receiving cavity; 137. Sliding part; 138. Receiving groove; 139. Elastic abutment; 161. Insertion interface; 162. Slide rail; 163. Locking groove; 1631. Opening. Detailed Implementation

[0019] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0021] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0024] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0025] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] The power amplifier unit is the energy core and signal enhancement engine of the drone countermeasure equipment. Its core function is to amplify weak interference signals to a power level sufficient to suppress the drone's communication / navigation link. The power amplifier unit directly determines the countermeasure distance, coverage area, and interference effect of the drone countermeasure equipment. The power amplifier unit includes a power amplifier component and a frequency conversion module. The power amplifier component uses the transistor effect amplification principle, activating the transistor amplification region through bias voltage to amplify the baseband signal (such as the 2.4GHz or 5.8GHz communication frequency band) to the level of tens of decibels per milliwatt (dBm), achieving long-range suppression of drones. The frequency conversion module is responsible for frequency conversion, ensuring that the interference signal is accurately matched to the drone's communication / navigation frequency band, which is the core prerequisite for effective interference.

[0028] To adapt to the countermeasure requirements of different drone frequency bands, drone countermeasure equipment needs to quickly match and replace the power amplifier unit with the corresponding frequency band based on the characteristics of the drone target. However, in most current drone countermeasure equipment, the power amplifier components and frequency converter modules of the power amplifier unit are directly installed inside the equipment, and the power amplifier components mainly dissipate heat by conducting heat to the casing of the drone countermeasure equipment through a heat-conducting medium. This means that when replacing the power amplifier unit of a drone countermeasure equipment, it is necessary to disassemble the entire drone countermeasure equipment, replace the power amplifier components and frequency converter modules separately, and reconnect the power supply and communication lines between the various functional units inside the drone countermeasure equipment. This is not only time-consuming and labor-intensive, but also inconvenient to operate. Furthermore, damage to the heat-conducting medium may lead to a decrease in heat dissipation performance, thereby affecting the power output of the power amplifier unit.

[0029] Based on this, to facilitate the replacement of the power amplifier unit, this application provides a power amplifier whose power amplifier unit is modularly designed through a housing, allowing the UAV countermeasure device to adapt to the countermeasure requirements of different UAV frequency bands by replacing the power amplifier. Furthermore, the housing of the power amplifier unit is equipped with a handle, allowing users to grip the unit and perform actions such as pulling, pushing, and lifting, thus enabling users to easily install and carry the power amplifier.

[0030] Furthermore, in order to ensure stable heat dissipation of the power amplifier unit, two ventilation openings are provided on the housing of the power amplifier unit, and a heat sink is provided between the two ventilation openings (i.e., the first ventilation opening and the second ventilation opening) to form a heat dissipation channel. This allows the airflow to carry the heat generated by the power amplifier unit to the external environment when it flows through the heat dissipation channel, thereby achieving stable heat dissipation of the power amplifier unit.

[0031] Furthermore, considering that the airflow will reach a relatively high temperature after absorbing the heat generated by the power amplifier unit, the airflow will also conduct heat to the handle as it flows over it, causing the handle to also become hot. This could lead to burns when users hold the power amplifier. In particular, in scenarios where users need to carry the power amplifier while it is running, their hands are easily burned by prolonged exposure to hot airflow. Similarly, in scenarios where the power amplifier is to be replaced immediately after a long period of operation, the handle may become too hot due to prolonged exposure to hot airflow, and direct contact could also result in burns.

[0032] Therefore, in the power amplifier provided in this application, by placing the first vent, the second vent, and the handle on different sides of the housing, and by providing a curved and extending heat sink between the first and second vents, the contact path between the airflow and the handle is blocked. When the airflow passes through the two vents, the airflow trajectory can avoid the area where the handle is located. Even if the user uses the power amplifier for a long time, the area where the handle is located can still maintain a relatively low temperature, effectively preventing the user from being burned by the high-temperature airflow when pulling, pushing, or lifting the power amplifier, thus improving the safety of device operation and user experience.

[0033] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2 The diagram shows two perspective views of the power amplifier. The power amplifier 10 is mainly used in communication base stations, radar systems, or radio frequency signal transmission links to amplify the power of the input radio frequency signal in order to obtain the expected output power.

[0034] Specifically, the power amplifier 10 includes at least one power amplifier unit 100, which can be used as a standalone module or cascaded or connected in parallel as a submodule in a power combining system. For example... Figure 3 As shown, Figure 3 An exploded view of a partial structure of a power amplifier is shown. The power amplifier unit 100 integrates electronic components such as the power amplifier assembly 110 and the frequency converter module 120. These components generate a lot of heat during operation.

[0035] Please continue reading. Figure 3The power amplifier unit 100 is enclosed by a housing 130, which is typically made of aluminum alloy or copper alloy through die casting or CNC machining, possessing excellent thermal conductivity and mechanical strength. The housing 130 not only shields against electromagnetic interference but also serves as a heat dissipation substrate. Inside the housing 130, heat-generating components such as the power amplifier assembly 110 and the frequency converter module 120 are tightly attached to the inner wall of the housing using thermal grease or soldering, allowing for rapid heat transfer to the walls of the housing 130 and the external heat dissipation structure.

[0036] As an example, a sealed mounting space 1303 is formed inside the housing 130. Components such as the power amplifier assembly 110 and the frequency converter module 120 are all housed within the mounting space 1303. Specifically, for example... Figure 3 As shown, the housing 130 includes a bottom shell 1301 and a top cover 1302. The bottom shell 1301 has an opening that communicates with the installation space 1303. The user can install components such as the power amplifier assembly 110 and the frequency converter module 120 into the installation space 1303 through this opening. The top cover 1302 covers the opening and is sealed to the bottom shell 1301 to form a sealed installation space 1303. The bottom shell 1301 and the top cover 1302 can be sealed by using a sealing ring, a sealing gasket, or applying sealant.

[0037] In addition, the power amplifier unit 100 can also adopt a military-grade aviation plug design to realize power supply, communication and power amplifier input and output functions, ensuring that the power amplifier unit 100 can effectively resist the corrosion of harsh environments such as rain, sand and dust, and salt spray, and ensuring the stable operation of the power amplifier 10 under extreme conditions such as in the field, vehicle or ship.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, the X-axis, Y-axis, and Z-axis are perpendicular to each other and together form the three-dimensional spatial coordinate reference of the power amplifier 10. Specifically, the direction indicated by the X-axis represents the length direction of the power amplifier 10, the direction indicated by the Y-axis represents the width direction of the power amplifier 10, and the direction indicated by the Z-axis represents the height direction of the power amplifier 10.

[0039] A first vent 131 is provided on one side of the housing 130 along a first direction (i.e., the direction shown by the X-axis in the figure) (e.g., the rear panel of the housing 130, i.e., the side of the housing 130 facing the positive X-axis direction), and a handle 132 is provided on the other side of the housing 130 along the first direction (e.g., the front panel of the housing 130, i.e., the side of the housing 130 facing the negative X-axis direction). At the same time, a second vent 133 is provided on at least one side wall of the housing 130 along a second direction (the second direction is perpendicular to the first direction, specifically, the second direction can be the direction shown by the Y-axis or the Z-axis in the figure) (e.g., the left side wall, right side wall, or upper and lower side walls of the housing 130).

[0040] It should be noted that, in addition to, Figure 1 and Figure 2 The first vent 131 and handle 132 shown are located on both sides of the housing 130 along the X-axis direction, and the second vent 133 is located on at least one side of the housing 130 along the Z-axis direction. It can also be located at other positions on the housing 130, as long as the first vent 131, handle 132 and second vent 133 are located on different sides of the housing 130.

[0041] For example, the first vent 131 and the handle 132 are respectively disposed on both sides of the housing 130 along the Y-axis direction, and the second vent 133 is disposed on at least one side of the housing 130 along the X-axis direction or the Z-axis direction; or, the first vent 131 and the handle 132 are respectively disposed on both sides of the housing 130 along the Z-axis direction, and the second vent 133 is disposed on at least one side of the housing 130 along the X-axis direction or the Y-axis direction. In this embodiment, for ease of explanation, only the following is used: Figure 1 and Figure 2 The structure shown is used as an example for illustration.

[0042] The above layout spatially isolates the first vent 131, the second vent 133, and the handle 132. The first vent 131 and the second vent 133 constitute the airflow inlet and outlet, while the handle 132 is located on an independent operating side. The first vent 131 and the second vent 133 can be configured as a louver structure, a grille structure, or a mesh structure to ensure ventilation while preventing foreign objects from entering the housing.

[0043] like Figure 3 and Figure 4 As shown, Figure 4An exploded view of the power amplifier provided in the embodiment of this application is shown. The bottom shell 1301 includes a bottom plate 1304 parallel to the top cover 1302. The bottom plate 1304 divides the internal space of the bottom shell 1301 into an installation space 1303 and a heat dissipation space 1305. That is, the installation space 1303 and the heat dissipation space 1305 are located on both sides of the bottom plate 1304 and are separated from each other. The first vent 131 and the second vent 133 are provided on the side wall of the bottom shell 1301 on the side where the heat dissipation space 1305 is located, and are connected to the heat dissipation space 1305.

[0044] The mounting space 1303 is used to mount heat-generating components such as the power amplifier assembly 110 and the frequency converter module 120. These components are tightly attached to the base plate 1304 using thermal grease or soldering to quickly conduct heat to the base plate 1304. The heat dissipation space 1305 allows airflow to carry heat from the base plate 1304 to the external environment, thereby achieving heat dissipation for the power amplifier assembly 110 and the frequency converter module 120.

[0045] like Figure 3 and Figure 4 As shown, a plurality of heat sinks 134 are provided on the outer surface of the housing 130 (specifically, the side of the base plate 1304 facing the heat dissipation space 1305), and the heat sinks 134 extend from the position of the first vent 131 to the position of the second vent 133. In particular, the heat sinks 134 extend in a curved shape; specifically, the heat sinks 134 may extend in a wavy, arc-shaped, or zigzag shape. The heat sinks 134 are usually integrally formed with the housing 130 to eliminate contact thermal resistance, or are fixed to the surface of the housing 130 by brazing.

[0046] Multiple heat sinks 134 are arranged in parallel, with a predetermined interval between adjacent heat sinks 134, thereby forming a heat dissipation airflow channel 135 within the interval space. This heat dissipation airflow channel 135 is used to guide the flow of air and increase the contact time and contact area between the airflow and the surface of the heat sinks 134.

[0047] When the power amplifier 10 is operating, an internal fan (or an external forced cooling system) drives airflow. The airflow enters through the first vent 131, flows through the curved and extended heat dissipation duct 135, and finally exits through the second vent 133. During this process, the heat generated by the power amplifier assembly 110 and the inverter module 120 is first transferred to the wall of the housing 130 (i.e., the base plate 1304) through thermal conduction, and then to the heat sink 134. The flowing airflow undergoes convective heat exchange with the high-temperature surface of the heat sink 134, absorbing the heat and carrying it to the external environment. Since the heat dissipation duct 135 is defined by the curved and extended heat sink 134, the airflow is effectively constrained within the heat dissipation duct 135, avoiding airflow short-circuiting and ensuring that the airflow can reach the high-temperature area of ​​the heat sink 134, thereby achieving stable and efficient heat dissipation for the power amplifier unit 100.

[0048] In the above embodiment, the first vent 131 and the second vent 133 are located on different sides of the housing 130 (i.e., one side in the first direction and the other side in the second direction), while the handle 132 is independently located on the other side in the first direction. This layout isolates the contact path between the hot airflow and the handle 132. When the airflow flows from the first vent 131 to the second vent 133, its flow trajectory avoids the area where the handle 132 is located. Even if the user uses the power amplifier 10 for a long time, the area of ​​the handle 132 can still maintain a relatively low temperature, effectively preventing the user from being burned by the high-temperature airflow when pulling, pushing, or lifting the power amplifier, thus improving the safety of device operation and user experience.

[0049] Furthermore, such as Figure 4 As shown, a heat insulation cavity 1306 is formed inside the housing 130 between the heat dissipation space 1305 and the handle 132. The heat insulation cavity 1306 separates the side of the housing 130 where the handle 132 is located from the heat dissipation space 1305, preventing the airflow inside the heat dissipation space 1305 from directly contacting the side of the housing 130 where the handle 132 is located. This increases the thermal resistance between the side of the housing 130 where the handle 132 is located and the airflow, thereby allowing the side of the housing 130 where the handle 132 is located to maintain a relatively low temperature, thereby improving the safety of device operation and user experience.

[0050] Specifically, such as Figure 4 As shown, a baffle 1307 is provided on the side of the base plate 1304 away from the installation space 1303. The baffle 1307 divides the space of the base plate 1304 away from the installation space 1303 into two cavities along the first direction. The cavity near the handle 132 forms a heat insulation cavity 1306, and the cavity away from the handle 132 forms a heat dissipation space 1305.

[0051] Regarding the specific structure of heatsink 134, such as Figure 3As shown in the embodiment of this application, a specific implementation method is provided. The second vent 133 is located on the side wall of the housing 130 near the handle 132. Specifically, the handle 132 is located on one side of the housing 130 along the X-axis direction, while the second vent 133 is located on the side wall perpendicular to the X-axis direction, but its opening area is as close as possible to the side where the handle 132 is located.

[0052] The heat sink 134 is divided into a first segment 1341 and a second segment 1342. The first segment 1341 starts from the first vent 131 and extends in a straight line along a first direction, forming a smooth airflow channel. When airflow enters the heat dissipation airflow channel 135 from the first vent 131, the smooth airflow channel can reduce the airflow inlet resistance, ensuring that the cold airflow enters the interior of the housing 130 at a high velocity, quickly covering the main heat-generating areas of the housing 130, and achieving rapid heat extraction.

[0053] The second segment 1342 connects to the end of the first segment 1341 and extends in a curved manner toward the second vent 133 located on the side wall of the housing 130. Because the first vent 131 and the second vent 133 are spatially staggered in a "rear-side-front" configuration, the airflow needs to change direction from the X-axis to the Z-axis with a turning angle. The curved extension design of the second segment 1342 provides a smooth centrifugal force transition path for the airflow, guiding it smoothly from longitudinal to lateral flow. This not only reduces wind resistance and improves the flow capacity of the heat dissipation duct 135, but also ensures that the hot airflow can be smoothly guided to the front of the side wall.

[0054] Furthermore, when the power amplifier 10 includes multiple power amplifier units 100, in order to make the structure of the power amplifier 10 simple and compact, such as Figure 1 , Figure 2 and Figure 4 As shown, the power amplifier unit 100 includes a first power amplifier unit 101 and a second power amplifier unit 102. The first power amplifier unit 101 and the second power amplifier unit 102 are two functionally independent but structurally identical power amplifier modules. They can work independently or perform power combining through a combining network.

[0055] The first power amplifier unit 101 and the second power amplifier unit 102 adopt a modular stacking design. Specifically, the first power amplifier unit 101 and the second power amplifier unit 102 are stacked along a third direction, which is perpendicular to both the first and second directions. During assembly, the first power amplifier unit 101 and the second power amplifier unit 102 are stacked layer by layer or placed side-by-side along the third direction to form a compact integrated module. In this embodiment, the third direction specifically refers to... Figure 4 The direction indicated by the Y-axis.

[0056] Multiple heat sinks 134 are provided on the housings 130 of the first power amplifier unit 101 and the second power amplifier unit 102. When the two power amplifier units 100 are assembled along a third direction, it is not a simple surface contact. Instead, the heat sinks on the housing of the first power amplifier unit 101 and the heat sinks on the housing of the second power amplifier unit 102 are required to correspond precisely in space. That is, the multiple heat sinks 134 on the first power amplifier unit 101 and the multiple heat sinks 134 on the second power amplifier unit 102 are aligned and attached one by one along a third direction.

[0057] Specifically, the tip of the heat sink of the first power amplifier unit 101 (i.e., the end of the heat sink 134 facing away from the base plate 1304) is in contact with the tip of the heat sink of the second power amplifier unit 102, or the heat sinks of the two power amplifier units are tightly connected by a thermal interface material (such as thermal grease or a thermal pad). In this structure, the heat on the housing of the first power amplifier unit 101 can be directly conducted to the housing of the second power amplifier unit 102 through the attached heat sink, and vice versa.

[0058] When the power amplifier 10 is working, both the first power amplifier unit 101 and the second power amplifier unit 102 generate a large amount of heat. The heat is conducted to their respective housings and heat sinks. Since the heat sinks are aligned and attached, the high heat inside the first power amplifier unit 101 can be quickly conducted to the heat sink of the second power amplifier unit 102 through the contact surface. Similarly, the high heat inside the second power amplifier unit 102 can also be quickly conducted to the heat sink of the first power amplifier unit 101 through the contact surface.

[0059] This is equivalent to connecting two independent heat sinks in parallel into a single large heat sink, effectively increasing the overall heat dissipation area. Simultaneously, this interconnected heat dissipation mechanism ensures that the temperatures of the two units remain highly consistent, preventing heat buildup at the stacking point of the two power amplifier units. While maintaining a compact size, this heat conduction interconnection mechanism enhances the heat dissipation capability of the power amplifier 10.

[0060] Furthermore, in order to make the structure of the power amplifier 10 more compact, such as Figure 4 As shown, the heat sink 134 is not arranged to extend directly to the edge of the first vent 131 or the second vent 133, but rather adopts a recessed arrangement, and a receiving cavity 136 is formed between the heat sink 134 and the first vent 131 or the second vent 133. Specifically, a certain space distance is reserved between the end of the heat sink 134 and the edge of the first vent 131 or the second vent 133, and this space not occupied by the heat sink 134 constitutes the receiving cavity 136.

[0061] The power amplifier 10 also includes a fan assembly 140, which is fixedly disposed within the accommodating cavity 136 and used to drive airflow along the heat dissipation duct 135. Specifically, the fan assembly 140 is the power source of the heat dissipation system of the power amplifier 10, and it typically consists of an axial or centrifugal fan and a corresponding mounting bracket. The fan assembly 140 can be fixedly disposed within the accommodating cavity 136 by means of screws, clips, or riveting, occupying the entire cross-sectional area of ​​the ventilation opening or covering the main air intake area.

[0062] Furthermore, in order to protect the fan assembly 140, such as Figure 4 As shown, a protective cover 150 can also be provided at the first vent 131 and / or the second vent 133 of the housing 130 to prevent dust and foreign objects from entering the accommodating cavity 136 from the vent, thereby protecting the fan assembly 140.

[0063] In one specific embodiment, such as Figure 4 As shown, the accommodating cavity 136 is located on the housing 130 near the first vent 131, and the fan assembly 140 is installed inside the accommodating cavity 136. When the fan assembly 140 is activated, low-temperature cold air from the external environment is accelerated and drawn into the accommodating cavity 136 by the fan blades. Since the space of the accommodating cavity 136 is larger than the inlet cross-section of the heat dissipation duct 135, the airflow is buffered and rectified here, and then uniformly enters the heat dissipation duct 135 defined by the heat sink 134. The airflow flows through the straight extension of the first section 1341 with a stable flow velocity; then it enters the curved extension of the second section 1342, where it flows along the wall under the action of centrifugal force, fully absorbing the heat from the heat sink 134. Finally, the high-temperature airflow after absorbing heat is discharged from the second vent 133 located on the side wall. Conversely, if the accommodating cavity 136 is located on the housing 130 near the second vent 133, a negative pressure is generated, drawing the airflow from the first vent 131, which then flows through the heat dissipation duct 135 and is actively extracted by the fan assembly 140.

[0064] Of course, when the accommodating cavity 136 is located on the housing 130 near the first vent 131, the fan assembly 140 can also draw airflow from the second vent 133 by generating negative pressure; when the accommodating cavity 136 is located on the housing 130 near the second vent 133, the fan assembly 140 can also draw airflow from the second vent 133 into the accommodating cavity 136 through the fan blades.

[0065] In the above embodiment, the fan assembly 140 is installed by forming a receiving cavity 136 between the heat sink 134 and the vent, which achieves compact integration of the heat dissipation structure. Compared with the external method, the built-in fan assembly 140 not only reduces the overall size of the device, but also shortens the length of the heat dissipation air duct 135 and improves the transmission efficiency.

[0066] When the power amplifier unit 100 includes a first power amplifier unit 101 and a second power amplifier unit 102, the accommodating cavities 136 on the first power amplifier unit 101 and the second power amplifier unit 102 can be positioned at the same location, so that after the first power amplifier unit 101 and the second power amplifier unit 102 are stacked, the accommodating cavities 136 on the two power amplifier units can be connected to form a large accommodating cavity 136. Moreover, when the fan assembly 140 is disposed in the accommodating cavity 136, the fan assembly 140 can simultaneously face the heat sinks on the first power amplifier unit 101 and the second power amplifier unit 102, so that the two stacked power amplifier units can share the fan assembly 140, thereby simplifying the structure of the power amplifier 10.

[0067] Specifically, the accommodating cavities 136 on the first power amplifier unit 101 and the second power amplifier unit 102 can both be located on the housing 130 near the first vent 131, or the accommodating cavities 136 on the first power amplifier unit 101 and the second power amplifier unit 102 can both be located on the housing 130 near the second vent 133.

[0068] Regarding the mounting architecture of power amplifier 10, such as Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, Figure 5 A perspective view of the power amplifier provided in an embodiment of this application with the handle closed is shown. Figure 6 A perspective view of the power amplifier provided in an embodiment of this application with its handle in the open position is shown. Figure 7 A perspective view of the fixed bracket provided in the embodiment of this application is shown. The power amplifier 10 also includes a fixed bracket 160, which is a support base for the power amplifier 10 and is usually fixedly installed on the load-bearing structure of the power amplifier 10, such as a cabinet, rack, wall or backpack.

[0069] The mounting bracket 160 has a connector 161 at one end along the first direction. The connector 161 is an open entry structure, its shape adapted to the cross-section of the housing 130 of the amplifier unit 100. The connector 161 allows the amplifier unit 100 to be inserted from the end opposite the handle 132. During installation, the user holds the handle 132, aligns the end of the amplifier unit 100 opposite the handle 132 with the connector 161, and pushes it in. This structure ensures that when the amplifier unit 100 is fully inserted, the handle 132 is positioned precisely on the outside of the mounting bracket 160, facilitating subsequent disassembly and handling.

[0070] Furthermore, in order to achieve a smooth installation of the power amplifier 10, such as Figure 7 As shown, the fixed bracket 160 is provided with a first direction (i.e. Figure 6The slide rail 162 extends in the direction shown by the X-axis, and correspondingly, as shown... Figure 1 As shown, a sliding part 137 is provided on the housing 130 so that the slide rail 162 and the sliding part 137 form a sliding fit to realize the smooth installation of the power amplifier 10.

[0071] Specifically, the slide rails 162 are typically installed in pairs on the opposite inner walls of the fixed bracket 160, and are made of metal profiles or high-strength plastic, possessing high straightness and wear resistance. The slide rails 162 can be along... Figure 6 A groove extending in the direction shown by the X-axis; in this case, the sliding part 137 can be a slider, slide block, etc., protruding from the surface of the housing 130; the slide rail 162 can also be along the... Figure 6 The slider extends in the direction shown by the X-axis. At this time, the sliding part 137 can be a guide groove structure machined from the side wall of the housing 130 itself, so as to ensure that the sliding part 137 and the slide rail 162 can form a sliding fit, that is, the two are tightly fitted but can move relative to each other.

[0072] This configuration limits the power amplifier unit 100 in terms of performance. Figure 6 The degrees of freedom in the directions shown by the Y and Z axes are retained only in their positions. Figure 6 The X-axis indicates the degree of freedom of movement. When the power amplifier unit 100 is inserted, the sliding part 137 and the slide rail 162 engage with each other, guiding the power amplifier unit 100 to precisely enter the depth of the fixed bracket 160 along a straight line. When maintenance is required, the user pulls the handle 132, and the sliding part 137 slides out in the opposite direction along the slide rail 162, realizing the quick extraction of the power amplifier unit 100.

[0073] Specifically, such as Figure 6 and Figure 7 As shown, when installing the power amplifier 10, the user can hold the handle 132 on the housing 130 and align the sliding part 137 on the housing 130 away from the handle 132 with the inlet of the slide rail 162 on the fixed bracket 160 (i.e., the slide rail 162 is located at the insertion interface 161 at one end). Gently push it in, and under the guidance of the slide rail 162, the power amplifier unit 100 will slide smoothly in the direction shown by the X-axis. That is, push the power amplifier unit 100 into the depth of the fixed bracket 160 in the positive direction of the X-axis in the figure until the housing 130 touches the rear end face of the fixed bracket 160. At this time, the power amplifier unit 100 reaches the predetermined position. When disassembling, the user only needs to hold the handle 132 and pull it outward. The power amplifier unit 100 will smoothly exit the fixed bracket along the slide rail 162. That is, pull the power amplifier unit 100 out of the fixed bracket 160 in the negative direction of the X-axis in the figure. The entire disassembly and assembly process does not require any additional tools and is extremely convenient to operate.

[0074] Regarding the specific structure of handle 132, such as Figure 8 As shown, Figure 8A perspective view of a handle in a power amplifier provided in an embodiment of this application is shown. The handle 132 includes a lifting section 1321 and a locking section 1322 that are fixed to each other. The lifting section 1321 and the locking section 1322 are arranged at an angle to each other and usually present a “V” shape, “L” shape or zigzag shape layout.

[0075] The connection between the lifting section 1321 and the locking section 1322 is rotatably connected to the housing 130 via a pin, rivet, or pivot, and the rotation center axis of the handle 132 is perpendicular to the first direction. The lifting section 1321 refers to the part of the handle 132 body that the user's hand grips; its surface is usually provided with anti-slip texture or an ergonomic curved surface, and it mainly bears the functions of bearing pulling, pushing, and lifting forces. The locking section 1322 refers to the part of the handle 132 body that is used to establish a mechanical connection with the fixed bracket 160.

[0076] like Figure 6 As shown, in the open state, the lifting section 1321 protrudes from the outer surface of the power amplifier unit 100 along the first direction, that is, the lifting section 1321 protrudes outward from the housing 130 and forms a space gap between it and the housing 130 for the hand to pass through. At this time, the user can conveniently hold the handle 132 to push in, pull out or lift.

[0077] like Figure 5 As shown, in the closed state, the handle 132 is retracted, and the lifting section 1321 fits against the outer surface of the power amplifier unit 100, or a groove matching its shape is formed on the surface of the housing 130, in which the lifting section 1321 is embedded. Through this switchable open and closed state design, when the power amplifier 10 is in operation or in its shipping packaging, the handle 132 can be retracted to prevent damage from accidental snagging on external objects, while maintaining the product's flatness and aesthetic appeal.

[0078] like Figure 6 and Figure 7 As shown, the fixed bracket 160 serves as a fixed frame structure, and its insertion interface 161 has an annular locking groove 163 on its edge. The locking groove 163 has an opening 1631 at one end facing the first direction, allowing the locking part 1323 of the locking section 1322 to enter. The locking part 1323 is located at the end of the locking section 1322 opposite to the lifting section 1321, and can specifically be a protruding block, pin, roller, etc.

[0079] When handle 132 is in the open position, such as Figure 6As shown, the locking part 1323 is positioned directly opposite the opening 1631. When the user holds the lifting section 1321 and inserts the amplifier unit 100 into the fixed bracket 160, the locking part 1323 smoothly enters the slot 163 through the opening 1631. Subsequently, the user rotates the handle 132 to transition it from the open state to the closed state (i.e., the handle 132 rotates from...). Figure 6 The state transition shown is to Figure 5 (As shown in the diagram), during this process, the locking section 1322 drives the locking part 1323 to slide along the inner wall of the locking groove 163. Since the locking groove 163 is an annular structure, the locking part 1323 gradually deviates from the position of the opening 1631 during its sliding process, and finally gets stuck deep in the locking groove 163. At this time, the locking part 1323 abuts against the inner wall of the locking groove 163 in the first direction.

[0080] When the user needs to fix the power amplifier unit 100 inside the device, simply push the power amplifier unit 100 into place and then press down the handle 132 to turn it to the closed state to complete the locking and fixing. When disassembly is required, the operation is reversed to unlock and the power amplifier unit 100 can be pulled out using the opened handle 132.

[0081] This structure enables tool-free disassembly and assembly, greatly shortening maintenance time and improving operation and maintenance efficiency. Secondly, the locking part 1323 and the locking groove 163 abut and limit each other in the first direction, which can effectively prevent the power amplifier unit 100 from slipping out of the fixed bracket 160 due to vibration or accidental collision, thus ensuring the reliability of the equipment connection.

[0082] Preferably, the included angle between the lifting section 1321 and the locking section 1322 can be specifically defined as greater than or equal to 90 degrees, that is, the lifting section 1321 and the locking section 1322 form a right angle or an obtuse angle relationship. When the included angle is a right angle, the lifting section 1321 and the locking section 1322 form a typical "L" shaped structure; when the included angle is an obtuse angle, the two form a relatively extended zigzag structure.

[0083] In this structure, when the handle 132 is in the closed state, due to the larger included angle, the locking part 1323 can enter deeper into the locking groove 163, thereby ensuring that the locking part 1323 and the inner wall of the locking groove 163 are in full contact along the first direction. This allows the locking part 1323 to effectively resist the tendency of the power amplifier unit 100 to move in the first direction. Even if the device is in a vibration environment, the locking part 1323 can be tightly pressed against the inner wall of the locking groove 163 and is not easy to loosen, thereby ensuring the stability of the power amplifier unit 100.

[0084] Furthermore, in order to improve the flatness and aesthetics of the product appearance, in some embodiments of this application, such as... Figure 9 As shown, Figure 9The illustration shows a partial structure of the housing in the power amplifier provided in the embodiment of this application. The housing 130 has a receiving groove 138 at one end along the first direction. The receiving groove 138 refers to a groove structure formed on one end of the housing 130 along the first direction.

[0085] The shape of the receiving groove 138 is adapted to the lifting section 1321 of the handle 132. Specifically, the groove depth, groove width, and extended profile of the receiving groove 138 are designed according to the geometric dimensions of the lifting section 1321. The receiving groove 138 can be obtained by cutting, stamping, or die forming the wall of the housing 130, and its position is close to the rotating connection of the handle 132.

[0086] When handle 132 is in the open position, such as Figure 6 As shown, the lifting section 1321 protrudes relative to the surface of the housing 130, forming an operating space for hand gripping, at which time the receiving groove 138 is in the open state. When the user operates the handle 132 to the closed state, as... Figure 5 As shown, the lifting section 1321 gradually approaches the surface of the housing 130 during rotation. Since the position of the receiving groove 138 precisely corresponds to the movement trajectory of the lifting section 1321, the lifting section 1321 will eventually embed itself into the receiving groove 138. At this point, as... Figure 5 As shown, the outer surface of the lifting section 1321 can be flush with the outer surface of the housing 130, or slightly lower than the surface of the housing 130.

[0087] By setting the receiving groove 138, the handle 132 can be completely embedded in the receiving groove 138 when not in use, so that the appearance of the housing 130 presents a regular block structure, which improves the structural compactness and space utilization of the power amplifier 10.

[0088] Furthermore, to improve the stability of the handle, such as Figure 9 As shown, the inner wall of the receiving groove 138 is provided with an elastic abutment 139, which is used to abut against the lifting section 1321 when the handle 132 is in the closed state.

[0089] The elastic abutment 139 refers to a component with elastic deformation capability, which can be in the form of a rubber block, silicone pad, metal spring, or elastic pin. The elastic abutment 139 can be fixed to the inner wall of the receiving groove 138 by means of bonding, snap-fit ​​fixing, or injection molding. When the handle 132 is in the closed state, that is, when the lifting section 1321 is stored in the receiving groove 138, the elastic abutment 139 undergoes elastic deformation due to the compression of the lifting section 1321, and the resulting elastic force acts on the lifting section 1321 to abut and fix the lifting section 1321.

[0090] As an example, such as Figure 9As shown, the elastic abutment 139 includes a spring and a ball. An installation groove is provided on the inner side wall of the receiving groove 138. The ball is disposed in the installation groove and is at least partially exposed outside the groove opening. The spring is connected between the bottom of the installation groove and the ball.

[0091] The diameter of the marble is larger than the diameter of the mounting groove, or the groove has a limiting structure, so that under the push of the spring, only part of the marble extends out of the mounting groove, while the other part is restricted inside the mounting groove, preventing the marble from completely coming out of the groove.

[0092] As the handle 132 rotates from the open to the closed position, the lifting section 1321 gradually approaches and enters the receiving groove 138. When the side wall of the lifting section 1321 contacts the exposed ball, the thrust of the lifting section 1321 overcomes the spring force, forcing the ball to compress the spring and retract into the mounting groove. At this time, the ball acts as a rolling contact surface, reducing the frictional resistance when the lifting section 1321 slides in.

[0093] When the lifting section 1321 is fully inserted into the receiving groove 138 and reaches the predetermined position (i.e., the closed state), a specific part on the lifting section 1321 (such as the side of the lifting section 1321 or the positioning recess formed on the lifting section 1321) aligns with the ball. The spring releases the accumulated potential energy, pushing the ball out and tightly abutting against the surface of the lifting section 1321. At this time, the ball applies pressure perpendicular to the first direction to the lifting section 1321, which, in conjunction with the position where the handle 132 is rotatably connected to the housing 130, opens and fixes the handle 132.

[0094] In the above embodiment, by adding an elastic abutment member 139, the elastic force generated by the elastic abutment member 139 is used to lock the handle 132, keeping it stable and stationary in the non-operating state. This prevents the lifting section 1321 from being affected by vibration and hitting the groove wall, thus avoiding noise, and prevents the handle 132 from accidentally popping out under severe vibration. At the same time, when the user needs to use the handle 132, only a slightly larger torque is needed to overcome the resistance of the elastic abutment member and open the handle 132 smoothly, making the operation process still smooth and convenient.

[0095] According to another aspect of the embodiments of this application, a drone countermeasure device is provided. The drone countermeasure device includes the power amplifier described in any of the above embodiments. The drone countermeasure device can be a portable countermeasure device, or a countermeasure device for other application scenarios such as vehicle-mounted, airborne, or shipborne.

[0096] Taking portable countermeasures devices as an example, such as Figure 10 As shown, Figure 10The illustration shows an application scenario of the drone countermeasure device provided in this application embodiment. The drone countermeasure device 1 is a backpack-type device. The power amplifier 10 is located on the side of the drone countermeasure device 1 away from the human body. The first vent 131 and the second vent 133 of the power amplifier unit 100 are located on the side of the power amplifier 10 facing vertically downwards and the side of the power amplifier 10 away from the human body, respectively. This installation method effectively avoids airflow passing over the human head, further reducing the impact of airflow on the human body.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A power amplifier, characterized in that, The power amplifier includes at least one power amplifier unit; The power amplifier unit includes a housing, a first ventilation opening on one side of the housing along a first direction, a handle on the other side of the housing along the first direction, and a second ventilation opening on at least one side wall of the housing along a second direction, wherein the first direction is perpendicular to the second direction. The housing is provided with a plurality of heat sinks that bend and extend from the first vent to the second vent. A heat dissipation channel is formed between two adjacent heat sinks to allow airflow to pass through in order to dissipate heat from the power amplifier unit.

2. The power amplifier according to claim 1, characterized in that, The housing has an internal mounting space for mounting components. A heat dissipation space separate from the mounting space is provided on one side of the housing. The first vent and the second vent are both connected to the heat dissipation space. The heat sink is disposed in the heat dissipation space. The interior of the housing has a heat insulation cavity formed between the heat dissipation space and the handle.

3. The power amplifier according to claim 1, characterized in that, The second vent is located on the side wall of the housing near the handle. The heat sink is divided into a first segment and a second segment from the first vent to the second vent. The first segment extends in a straight line along the first direction, and the second segment extends in a curved manner from the end connected to the first segment to the end located at the second vent.

4. The power amplifier according to claim 1, characterized in that, The power amplifier also includes a fixed bracket, and one end of the fixed bracket along the first direction is provided with a plug interface, which is used for the power amplifier unit to be inserted from the end away from the handle. The fixed bracket is provided with a slide rail extending along the first direction, and the housing is provided with a sliding part, which is used to slide and cooperate with the slide rail so that the power amplifier unit can slide into the fixed bracket or be pulled out of the fixed bracket along the first direction.

5. The power amplifier according to claim 4, characterized in that, The handle includes a lifting section and a locking section that are fixed to each other, and the lifting section and the locking section are arranged at an angle. The connection between the lifting section and the locking section is rotatably connected to the housing, and the handle can rotate relative to the housing about an axis perpendicular to the first direction; The handle can rotate between an open state and a closed state; in the open state, the lifting section protrudes from the outer surface of the power amplifier unit along the first direction; In the closed state, the lifting section is in contact with the outer surface of the power amplifier unit, or the lifting section is embedded in the power amplifier unit; The fixed bracket has an annular locking groove on the edge of the insertion interface. The locking groove has an opening at one end facing the first direction, and the locking section has a locking part at the end opposite to the lifting section. When the handle is in the open state and the power amplifier unit is inserted into the connector, the locking part enters the locking groove from the opening. As the handle is rotated from the open state to the closed state, the locking part slides along the locking groove and abuts against the inner wall of the locking groove in the first direction for limitation.

6. The power amplifier according to claim 5, characterized in that, The angle between the lifting section and the locking section is greater than or equal to 90 degrees.

7. The power amplifier according to claim 5, characterized in that, The housing has a receiving groove at one end along the first direction, and the receiving groove is used to receive the lifting section when the handle is rotated to the closed state; The inner wall of the receiving groove is provided with an elastic abutment, which is used to abut against the lifting section when the handle is in the closed state.

8. The power amplifier according to claim 1, characterized in that, The power amplifier unit includes a first power amplifier unit and a second power amplifier unit. Both the first power amplifier unit and the second power amplifier unit have a plurality of heat sinks on their housings. The plurality of heat sinks on the first power amplifier unit and the plurality of heat sinks on the second power amplifier unit are aligned and attached to each other along a third direction. The third direction is perpendicular to both the first direction and the second direction.

9. The power amplifier according to claim 8, characterized in that, A cavity is formed between the heat sink and the first or second vent; The power amplifier also includes a fan assembly, which is fixedly disposed within the accommodating cavity and is used to drive airflow along the heat dissipation duct.

10. A countermeasure device for unmanned aerial vehicles (UAVs), characterized in that, The drone countermeasure device includes: a power amplifier as described in any one of claims 1-9.

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