Power amplifier

Abstract

The utility model provides a power amplifier which comprises a power amplifier body and a power source body. The power amplifier main body and the power supply main body are detachably connected; the power amplifier main body is provided with a first mounting side, and the first mounting side is provided with a socket and at least one first guide structure; the power supply main body is provided with a second mounting side; the second mounting side is provided with a plug and at least one second guide structure; the first guide structures and / or the second guide structures extend in the first direction, the first guide structures and the second guide structures are connected, and the first guide structures and the second guide structures are in one-to-one correspondence; the first mounting side is connected to the second mounting side, and the plug is plugged in the socket along a first direction. Through the guiding effect of the first guiding structure and the second guiding structure, the plug is accurately plugged in the socket, and the electric connection between the power amplifier main body and the power supply main body is realized. When maintenance is needed, the power amplifier main body and the power supply main body can be completely separated; signal interference of the cable on the power amplifier body can be avoided, and the arrangement space of the whole machine can be saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of microwave communications, and in particular relates to a power amplifier. Background Art

[0002] Microwave and RF solid-state power amplifiers are components used to reproduce signals with greater power, current, and voltage. They can also be considered as circuits that convert self-current input into RF and microwave energy. Microwave and RF solid-state power amplifiers are usually composed of RF microwave power transistors, input and output matching circuits, DC feeds, bias circuits, control circuits, switching power supply bodies, and heat dissipation modules. They are widely used in electronic countermeasures, wireless communications, radar, and radar jamming.

[0003] Microwave and radio frequency solid-state power amplifiers are used in outdoor places such as vehicles, outdoor ground stations, and ships. The outdoor installation and use environment are relatively complex. They are generally installed on the back of the antenna and the installation space is relatively limited. Therefore, this type of product pursues miniaturization and lightweight. In addition, in related technologies, the power amplifier body and the power supply body are connected by conventional cable connection. However, after the product is assembled, the cable status cannot be fully controllable, and the cable will also cause signal interference to the power amplifier body, resulting in a poor user experience. Utility Model Content

[0004] The technical purpose of the utility model is to provide a power amplifier, aiming to solve the technical problems in the related technology that after the product is assembled, the cable status cannot be fully controlled and the cable will also cause signal interference to the power amplifier body.

[0005] To solve the above technical problems, the utility model is implemented as follows: a power amplifier comprises a power amplifier body and a power supply body; the power amplifier body and the power supply body are detachably connected; the power amplifier body has a first installation side, the first installation side is provided with a socket and at least one first guide structure; the power supply body has a second installation side, the second installation side is provided with a plug and at least one second guide structure; the first guide structure and / or the second guide structure extend along a first direction, the first guide structure and the second guide structure are connected, and the first guide structure and the second guide structure correspond one to one; the first installation side is connected to the second installation side; the plug is plugged into the socket along the first direction.

[0006] Further, the first guide structure includes a first positioning hole opened on the first mounting side, the second guide structure includes a first positioning column protruding from the second mounting side and extending along the first direction, and the first positioning column is passed through the first positioning hole; and / or, the first guide structure includes a second positioning column protruding from the first mounting side and extending along the first direction, the second guide structure includes a second positioning hole opened on the second mounting side, and the second positioning column is passed through the second positioning hole.

[0007] Further, a first guide bevel is provided at one end of the first positioning column away from the second mounting side, and the first guide bevel gradually shrinks along the first direction from the second mounting side to the first mounting side; and / or a second guide bevel is provided at one end of the second positioning column away from the first mounting side, and the second guide bevel gradually shrinks along the first direction from the first mounting side to the second mounting side.

[0008] Further, the first positioning hole includes a through hole and / or a blind hole; and / or the second positioning hole includes a through hole and / or a blind hole.

[0009] Further, the first guide structure includes a first guide column arranged on the first mounting side and extending along the first direction, and the second guide structure includes a second guide column protruding from the second mounting side and extending along the first direction; the first guide column is provided with a mounting groove opening toward the second mounting side, and the second guide column is inserted into the mounting groove; and / or, the second guide column is provided with a mounting groove opening toward the first mounting side, and the first guide column is inserted into the mounting groove.

[0010] Furthermore, the power amplifier body is provided with a first assembly structure, the power supply body is provided with a second assembly structure, the first assembly structure is connected to the second assembly structure, and the power supply body is detachably connected to the power amplifier body through the first assembly structure and the second assembly structure.

[0011] Furthermore, the first assembly structure includes an assembly hole opened on the peripheral side of the first installation side, the power supply body also has a flange structure protruding on one side of the second installation side, the flange structure has a connecting hole, and the second assembly structure includes a fastener, the fastener is passed through the connecting hole from the side of the power supply body away from the power amplifier body and assembled in the assembly hole.

[0012] Furthermore, the fastener comprises a captive screw.

[0013] Furthermore, the power amplifier also includes a heat dissipation module, and the heat dissipation module is mounted on a side of the power amplifier body away from the power supply body.

[0014] Furthermore, the power amplifier body has a frame on the side facing away from the power supply body, the heat dissipation module includes a heat dissipation block and a fan, the heat dissipation block and the fan are both assembled on the frame, and the frame is provided with relatively arranged air outlet and air inlet, the fan drives the air flow from the air inlet through the heat dissipation block and then flows to the air outlet.

[0015] Compared with the related art, the power amplifier in the utility model has the following beneficial effects:

[0016] In the utility model, the power amplifier includes a detachably connected power amplifier body and a power supply body, and a first guide structure is provided on the first installation side of the power amplifier body, and a second guide structure is provided on the second installation side of the power supply body. Therefore, through the guiding effect of the first guide structure and the second guide structure, the plug of the power supply body can be accurately plugged into the socket of the power amplifier body to achieve electrical connection between the power amplifier body and the power supply body. Compared with the cable connection method used in the related art, the utility model can achieve electrical connection by plugging and unplugging. On the one hand, when maintenance is required, the power amplifier body and the power supply body can be completely separated to better perform maintenance; on the other hand, the signal interference of the cable to the power amplifier body can be avoided, and by removing the cable, the layout space of the whole machine can be saved, and the neatness of the whole machine can be improved. In addition, the first guide structure and the second guide structure also help the assembly connection of the power amplifier body and the power supply body, reducing the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the power amplifier in the embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a power amplifier body of a power amplifier in an embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the power supply body of the power amplifier in the embodiment of the utility model;

[0021] Figure 4 It is a partial structural cross-sectional view of a power amplifier in an embodiment of the utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of detail A.

[0023] In the accompanying drawings, each reference numeral represents:

[0024] 1. Amplifier body; 11. First installation side; 111. Socket; 112. First positioning hole; 2. Power supply body; 21. Second installation side; 211. Plug; 212. First positioning column; 2121. First guide slope; 3. Fastener; 4. Heat dissipation module; 41. Heat dissipation block; 42. Fan. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1-5The embodiment of the utility model provides a power amplifier, including a power amplifier body 1 and a power supply body 2; the power amplifier body 1 and the power supply body 2 are detachably connected; the power amplifier body 1 has a first installation side 11, and the first installation side 11 is provided with a socket 111 and at least one first guide structure; the power supply body 2 has a second installation side 21, and the second installation side 21 is provided with a plug 211 and at least one second guide structure; the first guide structure and / or the second guide structure extends along a first direction, the first guide structure and the second guide structure are connected, and the first guide structure and the second guide structure correspond one to one; the first installation side 11 is connected to the second installation side 21, and the plug 211 is plugged into the socket 111 along the first direction.

[0029] In the embodiment of the utility model, the power amplifier includes a detachably connected power amplifier body 1 and a power supply body 2, and the first installation side 11 of the power amplifier body 1 is provided with a first guide structure, and the second installation side 21 of the power supply body 2 is provided with a second guide structure. Therefore, through the guiding effect of the first guide structure and the second guide structure, the plug 211 of the power supply body 2 can be accurately plugged into the socket 111 of the power amplifier body 1 to achieve the electrical connection between the power amplifier body 1 and the power supply body 2. Compared with the cable connection method in the related art, the embodiment of the utility model can achieve electrical connection by plugging and unplugging. On the one hand, when maintenance is required, the power amplifier body 1 and the power supply body 2 can be completely separated to better perform maintenance; on the other hand, the signal interference of the cable to the power amplifier body 1 can be avoided, and by removing the cable, the arrangement space of the whole machine can be saved, and the neatness of the whole machine can be improved. In addition, the first guide structure and the second guide structure also help the assembly connection of the power amplifier body 1 and the power supply body 2, reducing the difficulty of assembly.

[0030] It can be understood that the power amplifier body 1 specifically includes RF microwave power transistors, input and output matching circuits, DC feed, bias circuit, filter and control circuit, etc. The solid-state power amplifier of the embodiment of the utility model is the same as conventional microwave and RF solid-state power amplifiers in realizing basic functions, and can be considered as a component for reproducing signals with greater power, greater current and greater voltage, and can be considered as a circuit for converting self-flowing input into RF and microwave energy.

[0031] In addition, the first direction is parallel to the plugging and unplugging direction of the socket 111 and the plug 211. Exemplarily, the power amplifier body 1 and the power supply body 2 can both be rectangular parallelepipeds, the first mounting side 11 and the second mounting side 21 can be rectangular, and the first direction can be the height direction of the power amplifier body 1 and / or the power supply body 2. Figure 1 The middle Z-axis direction is parallel to the first direction.

[0032] Furthermore, in some embodiments, the first guide structure includes a first positioning hole 112 opened on the first mounting side 11 , and the second guide structure includes a first positioning column 212 protruding from the second mounting side 21 and extending along the first direction, and the first positioning column 212 is disposed in the first positioning hole 112 .

[0033] Specifically, the first installation side 11 may have one or more first positioning holes 112. When there is one first positioning hole 112, the first positioning hole 112 may be a through hole or a blind hole; when there are multiple first positioning holes 112, the first positioning hole 112 may be a through hole and / or a blind hole. When the power amplifier body 1 and the power supply body 2 are plugged in, the first installation side 11 may be firstly directed toward the second installation side 21, and then the first positioning column 212 may be passed through the first positioning hole 112, so that the power amplifier body 1 and the power supply body 2 are accurately positioned, so that the socket 111 of the power amplifier body 1 and the plug 211 of the power supply body 2 are accurately aligned, and at this time, the socket 111 and the plug 211 may be directly plugged in, thereby realizing the plug-in connection between the power amplifier body 1 and the power supply body 2.

[0034] Furthermore, in some embodiments, a first guiding slope 2121 is disposed at one end of the first positioning column 212 away from the second mounting side 21 , and the first guiding slope 2121 gradually contracts along the first direction from the second mounting side 21 to the first mounting side 11 .

[0035] Specifically, the end of the first positioning column 212 away from the second mounting side 21 is a free end. A first guiding inclined surface 2121 is provided at the free end; and, in the first guiding inclined surface 2121, the closer to the first positioning hole 112, the smaller the axial projection surface along the first positioning hole 112, so that in the process of inserting the first positioning column 212 into the first positioning hole 112, the first positioning column 212 can be quickly inserted into the first positioning hole 112, thereby realizing the rapid positioning of the power amplifier body 1 and the power supply body 2.

[0036] Further, in some embodiments, the first guide structure includes a second positioning column protruding from the first installation side 11 and extending along the first direction, the second guide structure includes a second positioning hole opened on the second installation side 21, and the second positioning column is inserted into the second positioning hole. Similarly, the plug-in connection between the power amplifier body 1 and the power supply body 2 can be achieved through the positioning function of the second positioning column and the second positioning hole, which will not be described in detail here.

[0037] Further, in some embodiments, a second guiding slope is provided at one end of the second positioning column away from the first mounting side 11, and the second guiding slope is gradually reduced along the first direction from the first mounting side 11 to the second mounting side 21. Similarly, by providing the second guiding slope at the free end of the second positioning column, rapid positioning of the power amplifier body 1 and the power supply body 2 can also be achieved, which will not be elaborated here.

[0038] It can be understood that in some embodiments, a first positioning hole 112 and a second positioning column can be provided on the first mounting side 11 at the same time, and a first positioning column 212 and a second positioning hole can be provided on the second mounting side 21 at the same time, wherein the first positioning hole 112 and the first positioning column 212 correspond one-to-one, and the second positioning column and the second positioning hole correspond one-to-one.

[0039] Further, in some embodiments, the first guide structure includes a first guide column arranged on the first mounting side 11 and extending along the first direction, and the second guide structure includes a second guide column protruding from the second mounting side 21 and extending along the first direction; the first guide column is provided with a mounting groove opening toward the second mounting side 21, and the second guide column is inserted into the mounting groove.

[0040] Specifically, a cavity is formed on the first installation side 11 of the power amplifier body 1, and the first guide column can extend along the first direction and be arranged in the cavity; while the power supply body 2 is mainly formed by being surrounded and sealed by a shell, and the second guide column protrudes outward from the shell of the second installation side 21. A mounting groove is provided on the first guide column, so that the second guide column can be plugged into the mounting groove, thereby realizing the positioning of the power amplifier body 1 and the power supply body 2, so that the socket 111 of the power amplifier body 1 and the plug 211 of the power supply body 2 are accurately aligned, and at this time, the socket 111 and the plug 211 can be directly plugged, thereby realizing the plug-in connection of the power amplifier body 1 and the power supply body 2.

[0041] Further, in some embodiments, the first guide structure includes a first guide column disposed on the first installation side 11 and extending along the first direction, and the second guide structure includes a second guide column protruding from the second installation side 21 and extending along the first direction; the second guide column is provided with a mounting groove opening toward the first installation side 11, and the first guide column is plugged into the mounting groove. Similarly, the first guide column is formed in the cavity of the first installation side 11, and the second guide column protrudes from the shell of the second installation side 21. By plugging the first guide column into the mounting groove, the positioning of the power amplifier body 1 and the power supply body 2 can be achieved, and finally the plug-in connection of the power amplifier body 1 and the power supply body 2 can be achieved, which will not be elaborated here.

[0042] Further, in some embodiments, the power amplifier body 1 is provided with a first assembly structure, the power supply body 2 is provided with a second assembly structure, the first assembly structure is connected to the second assembly structure, and the power supply body 2 is detachably connected to the power amplifier body 1 through the first assembly structure and the second assembly structure. Through the guiding effect of the first guide structure and the second guide structure, the power amplifier body 1 and the power supply body 2 are accurately aligned, and then the first assembly structure and the second assembly structure are connected, so that the power supply body 2 and the power amplifier body 1 can be detachably connected.

[0043] Furthermore, in some specific embodiments, the first assembly structure includes an assembly hole opened on the peripheral side of the first installation side 11, the power supply body 2 also has a flange structure protruding on one side of the second installation side 21, the flange structure has a connecting hole, and the second assembly structure includes a fastener 3, the fastener 3 is passed through the connecting hole from the side of the power supply body 2 away from the power amplifier body 1 and assembled in the assembly hole.

[0044] Specifically, the power supply body 2 is mainly formed by being surrounded and sealed by a shell, and the flange structure protrudes from the outer peripheral side of the shell on the second mounting side 21. Along the first direction, the flange structure just falls into the outermost part of the first mounting side 11 of the power amplifier body 1, so that the assembly hole can be aligned with the connection hole. The fastener 3 can be an ordinary screw, and the assembly hole can be provided with a thread. During assembly, the ordinary screw can be taken from the side of the flange structure away from the power amplifier body 1, and passed through the connection hole and the assembly hole in turn, and the ordinary screw can be threadedly connected to the assembly hole, so that the assembly connection of the power amplifier body 1 and the power supply body 2 can be realized, and the operation is convenient.

[0045] Furthermore, in some specific embodiments, the fastener 3 may also be a captive screw. By setting the fastener 3 as a captive screw, when the power supply body 2 and the amplifier body 1 are separated, the captive screw is loosened and fixed to the flange structure of the power supply body 2, and will not fall off. Compared with the method of connecting with ordinary screws, the captive screw connection with a fool-proof design can effectively avoid the problem of too many screws falling off during the disassembly process, thereby improving the user experience.

[0046] Furthermore, the power supply body 2 is formed by being surrounded and sealed by the shell, and the second installation side 21 of the power supply body 2 is connected to the first installation side 11 of the power amplifier body 1. A sealing groove can be provided between the first installation side 11 and the second installation side 21, and a waterproof silicone rubber strip is filled in the sealing groove to achieve waterproof sealing between the power amplifier body 1 and the power supply body 2, thereby meeting the sealing requirements of the power supply body 2 for outdoor use environments such as waterproof and dustproof. In addition, the power supply body 2 is formed by being sealed by the shell, which can shield the internal signal of the power supply and reduce interference to the power amplifier body 1.

[0047] Furthermore, a plurality of heat sinks are provided on the side of the power supply body 2 facing away from the power amplifier body 1 , which are used to quickly dissipate the heat generated by the power supply body 2 to ensure the service life of the power supply body 2 .

[0048] Furthermore, in some embodiments, the power amplifier further includes a heat dissipation module 4, which is mounted on a side of the power amplifier body 1 away from the power supply body 2. The heat dissipation module 4 can be used to quickly dissipate the heat generated by the power amplifier body 1, thereby ensuring the service life of the power amplifier body 1.

[0049] Furthermore, in some specific embodiments, the power amplifier body 1 has a frame on the side facing away from the power supply body 2, the heat dissipation module 4 includes a heat dissipation block 41 and a fan 42, the heat dissipation block 41 and the fan 42 are both assembled in the frame, and the frame is provided with relatively arranged air outlet and air inlet, the fan 42 drives the air flow from the air inlet through the heat dissipation block 41 and then flows to the air outlet.

[0050] Specifically, the heat sink 41 can be a profile heat sink. The heat sink 41 includes a plurality of heat sinks arranged at intervals, and the central axis of the fan 42 is parallel to the heat sink. The air outlet is directly opposite to the fan 42, and the air inlet is directly opposite to the end of the heat sink 41 away from the fan 42. When the power amplifier body 1 generates heat, the heat sink 41 can take away the heat generated by the power amplifier body 1, and the fan 42 can drive the air flow from the air inlet into the frame, and under the blocking effect of the heat sink, the air flow flows through the gap of the heat sink and contacts the heat sink, so that the heat on the heat sink can be quickly dissipated, and the heat flows out from the air outlet, finally achieving the heat dissipation of the power amplifier body 1.

[0051] Furthermore, in some specific embodiments, thermal conductive silicone grease is provided between the frame and the heat sink 41, thereby improving the heat dissipation performance. Furthermore, in some specific embodiments, a plurality of continuous grooves are provided around the outer edge of the heat sink 41, and the grooves are filled with silicone rubber, thereby protecting the thermal conductive silicone grease in the middle of the heat sink 41 from being washed away by rainwater and preventing failure.

[0052] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A power amplifier, characterized in that: Including power amplifier body and power supply body; The power amplifier body and the power supply body are detachably connected; The power amplifier body has a first installation side, the first installation side is provided with a socket and at least one first guide structure; the power supply body has a second installation side, the second installation side is provided with a plug and at least one second guide structure; the first guide structure and / or the second guide structure extend along a first direction, the first guide structure and the second guide structure are connected, and the first guide structure and the second guide structure correspond one to one; the first installation side is connected to the second installation side; The plug is plugged into the socket along the first direction.

2. The power amplifier according to claim 1, characterized in that: The first guide structure includes a first positioning hole opened on the first installation side, and the second guide structure includes a first positioning column protruding from the second installation side and extending along the first direction, and the first positioning column is passed through the first positioning hole; And / or, the first guide structure includes a second positioning column protruding from the first mounting side and extending along the first direction, the second guide structure includes a second positioning hole opened on the second mounting side, and the second positioning column is inserted into the second positioning hole.

3. The power amplifier according to claim 2, characterized in that: A first guiding slope is disposed at one end of the first positioning column away from the second mounting side, and the first guiding slope gradually decreases along the first direction from the second mounting side to the first mounting side; And / or, a second guiding slope is disposed at one end of the second positioning column away from the first mounting side, and the second guiding slope gradually decreases along the first direction from the first mounting side to the second mounting side.

4. The power amplifier according to claim 2, characterized in that: The first positioning hole includes a through hole and / or a blind hole; and / or the second positioning hole includes a through hole and / or a blind hole.

5. The power amplifier according to claim 1, characterized in that: The first guide structure comprises a first guide column disposed on the first installation side and extending along the first direction, and the second guide structure comprises a second guide column protruding from the second installation side and extending along the first direction; The first guide column is provided with a mounting groove opening toward the second mounting side, and the second guide column is plugged into the mounting groove; And / or, the second guide column is provided with a mounting groove opening toward the first mounting side, and the first guide column is plugged into the mounting groove.

6. The power amplifier according to claim 1, characterized in that: The power amplifier body is provided with a first assembly structure, the power supply body is provided with a second assembly structure, the first assembly structure is connected to the second assembly structure, and the power supply body is detachably connected to the power amplifier body through the first assembly structure and the second assembly structure.

7. The power amplifier according to claim 6, characterized in that: The first assembly structure includes an assembly hole opened on the peripheral side of the first installation side, the power supply body also protrudes with a flange structure on one side of the second installation side, and the flange structure is provided with a connecting hole. The second assembly structure includes a fastener, and the fastener is passed through the connecting hole from the side of the power supply body away from the power amplifier body and assembled in the assembly hole.

8. The power amplifier according to claim 7, characterized in that: The fastener comprises a captive screw.

9. The power amplifier according to claim 1, characterized in that: The power amplifier further comprises a heat dissipation module, and the heat dissipation module is mounted on a side of the power amplifier body away from the power supply body.

10. The power amplifier according to claim 9, characterized in that: The power amplifier body has a frame on the side away from the power supply body, and the heat dissipation module includes a heat dissipation block and a fan. The heat dissipation block and the fan are both assembled on the frame, and the frame is provided with an air outlet and an air inlet which are relatively arranged. The fan drives the air flow from the air inlet through the heat dissipation block and then flows to the air outlet.

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