Ka-band low-noise amplifier

Abstract

The utility model relates to the technical field of amplifiers, in particular to a Ka frequency band low noise amplifier which comprises an amplifier body and a cover plate and further comprises a heat dissipation assembly, the heat dissipation assembly comprises a positioning frame, a mounting frame, a fixing frame, a fixing seat, a telescopic spring, an abutting block, fan blades and a driving component, the positioning frame is fixedly connected with the cover plate, the mounting frame is arranged on the positioning frame, and the fixing seat is arranged on the fixing frame. The fixing frame is fixedly connected with the mounting frame, the fixing seat is fixedly connected with the cover plate, the telescopic spring is arranged on the fixing seat, the abutting block is connected with the telescopic spring, the fan blades are connected with the mounting frame through the driving component, the driving component is arranged on the mounting frame and connected with the fan blades, and the fan blades are driven by the driving component in the mounting frame to rotate at a high speed. Therefore, heat generated during operation of components in the amplifier body connected with the cover plate can be discharged, and influence of heat accumulation on normal operation of the amplifier body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of amplifiers, in particular to a Ka-band low-noise amplifier. Background Art

[0002] Traditional Ka-band low-noise amplifiers are mostly implemented by bare-chip circuits and MIC micro-assembly process methods. However, the requirements for machining and surface treatment of products are high, the implementation process is complex, and the bare chip requires an airtight structure, so the maintainability is poor and the cost is high.

[0003] In the prior art, CN203872138U discloses a Ka-band low-noise amplifier, including: waveguide-microstrip conversion, DC feed pins, RF circuit board, waveguide port, carrier board, upper cover plate, coaxial connector, power supply board, grounding posts, feed-through capacitors, housing, lower cover plate, configuration pressing block, movable partition ribs; the waveguide port is integrally connected with the housing, one end of the waveguide port is connected to the waveguide-microstrip conversion, the output end of the RF circuit board outputs the signal processed by the RF circuit board through the coaxial connector, the configuration pressing block presses and fixes the RF circuit board and the carrier board on the housing, and the movable partition ribs are inserted into the card slots formed by the configuration pressing block to increase the circuit isolation degree and prevent the amplifier from self-oscillating; through the layout design of the configuration pressing block, a cavity structure of a millimeter-wave low-noise amplifier with simple processing technology and low cost is realized. At the same time, the packaged MMIC monolithic design is adopted, and the implementation process is simple, easy to process, and the cost is low.

[0004] However, in the above structure, the components operating in the amplifier will generate heat, and the heat is not easily discharged from the amplifier, so that the heat accumulates in the amplifier, which further affects the operation of the amplifier. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a Ka-band low-noise amplifier, aiming to solve the problem that the components operating in the amplifier will generate heat, and the heat is not easily discharged from the amplifier, so that the heat accumulates in the amplifier, which further affects the operation of the amplifier.

[0006] To achieve the above purpose, the utility model provides a Ka-band low-noise amplifier, including an amplifier body and a cover plate. The cover plate is arranged on the amplifier body and is located on one side of the amplifier body.

[0007] It further includes a heat dissipation component.

[0008] The heat dissipation component includes a positioning frame, a mounting frame, a fixing frame, a fixing seat, a telescopic spring, a contact block, a fan blade and a driving member. The positioning frame is fixedly connected to the cover plate and is located on one side of the cover plate. The mounting frame is arranged on the positioning frame and is located on one side of the positioning frame. The fixing frame is fixedly connected to the mounting frame and is located on the side of the mounting frame close to the positioning frame. The fixing seat is fixedly connected to the cover plate and is located on one side of the cover plate. The telescopic spring is arranged on the fixing seat and is located on one side of the fixing seat. The contact block is connected to the telescopic spring and is located on the side of the telescopic spring close to the fixing frame. The fan blade is connected to the mounting frame through the driving member and is located on one side of the mounting frame. The driving member is arranged on the mounting frame and is connected to the fan blade.

[0009] Among them, the driving member includes a support frame, a rotating motor and a rotating shaft. The support frame is fixedly connected to the mounting frame and is located on one side of the mounting frame; the rotating motor is fixedly connected to the support frame and is located on one side of the support frame; the rotating shaft is connected to the output end of the rotating motor, is fixedly connected to the fan blade, and is located on the side of the rotating motor close to the fan blade.

[0010] Among them, the heat dissipation component further includes a protective net. The protective net is fixedly connected to the mounting frame and is located on the side of the mounting frame close to the fan blade.

[0011] Among them, the heat dissipation component further includes a limiting frame. The limiting frame is slidably connected to the fixing seat, is fixedly connected to the contact block, and is located on the side of the fixing seat close to the contact block.

[0012] Among them, the heat dissipation component further includes a moving bracket. The moving bracket is fixedly connected to the contact block and is located on one side of the contact block.

[0013] A Ka-band low-noise amplifier of the present utility model drives the telescopic spring to compress, so that the contact block moves in the direction of contraction of the telescopic spring, thereby facilitating the operator to place the mounting frame in the positioning frame and release the compressed telescopic spring, so that the contact block moves above the fixing frame connected to the mounting frame under the rebound and reset movement of the telescopic spring, and cooperates with the positioning frame to limit the movement of the fixing frame and the mounting frame, so that the mounting frame can be fixedly installed on the cover plate. The driving member in the mounting frame drives the fan blade to rotate at a high speed, so as to discharge the heat generated when the components in the amplifier body connected to the cover plate operate, and avoid the influence of heat accumulation on the normal operation of the amplifier body. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0015] Figure 1 It is a schematic structural diagram of a Ka-band low-noise amplifier according to the first embodiment of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of a heat dissipation component according to the first embodiment of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of a telescopic spring according to the first embodiment of the present utility model.

[0018] In the figure: 101 - amplifier body, 102 - cover plate, 103 - positioning frame, 104 - mounting frame, 105 - fixing frame, 106 - fixing seat, 107 - telescopic spring, 108 - abutting block, 109 - fan blade, 110 - protective net, 111 - limiting frame, 112 - moving bracket, 113 - support frame, 114 - rotating motor, 115 - rotating shaft. Detailed Embodiment

[0019] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0020] The first embodiment of the present application is as follows:

[0021] Please refer to Figures 1 to 3 , wherein Figure 1 It is a schematic structural diagram of a Ka-band low-noise amplifier according to the first embodiment of the present utility model. Figure 2 It is a schematic structural diagram of a heat dissipation component according to the first embodiment of the present utility model. Figure 3 It is a schematic structural diagram of a telescopic spring according to the first embodiment of the present utility model.

[0022] The utility model provides a Ka-band low-noise amplifier, which comprises an amplifier body 101, a cover plate 102 and a heat dissipation component. The heat dissipation component includes a positioning frame 103, a mounting frame 104, a fixing frame 105, a fixing seat 106, a telescopic spring 107, an abutting block 108, a fan blade 109, a driving member, a protective net 110, a limiting frame 111 and a moving bracket 112. The driving member includes a support frame 113, a rotating motor 114 and a rotating shaft 115. By means of the foregoing solution, the components operating in the amplifier generate heat, and the heat is not easily discharged from the amplifier, so that the heat accumulates in the amplifier, thereby affecting the operation of the amplifier. It can be understood that the foregoing solution can be used in cases where heat dissipation inside the amplifier is required.

[0023] In this embodiment, the cover plate 102 is disposed on the amplifier body 101. The amplifier body 101 can amplify weak signals and reduce the noise coefficient. The detailed structure of the amplifier body 101 is recorded in the prior art CN203872138U and will not be elaborated herein.

[0024] Among them, the positioning frame 103 is fixedly connected to the cover plate 102 and is located on one side of the cover plate 102. The mounting frame 104 is arranged on the positioning frame 103 and is located on one side of the positioning frame 103. The fixing frame 105 is fixedly connected to the mounting frame 104 and is located on the side of the mounting frame 104 close to the positioning frame 103. The fixing seat 106 is fixedly connected to the cover plate 102 and is located on one side of the cover plate 102. The telescopic spring 107 is arranged on the fixing seat 106 and is located on one side of the fixing seat 106. The abutting block 108 is connected to the telescopic spring 107 and is located on the side of the telescopic spring 107 close to the fixing frame 105. The fan blade 109 is connected to the mounting frame 104 through the driving member and is located on one side of the mounting frame 104. The driving member is arranged on the mounting frame 104 and is connected to the fan blade 109. The positioning frame 103 is welded to the cover plate 102. The mounting frame 104 is placed in the positioning frame 103. Through the positioning frame 103, the mounting frame 104 can be quickly positioned and placed at the corresponding mounting position. The fixing frame 105 is welded to the outside of the mounting frame 104. There are two fixing seats 106, and the two fixing seats 106 are welded to the cover plate 102. There are two telescopic springs 107, and one end of the two telescopic springs 107 is welded to the corresponding two fixing seats 106. The telescopic spring 107 has the ability of elastic deformation. There are two abutting blocks 108, and the two abutting blocks 108 are welded to the other ends of the corresponding two telescopic springs 107. Through the deformation ability of the telescopic spring 107, the abutting block 108 can be driven to move. The fan blade 109 is connected to the mounting frame 104 through the driving member. Through the driving member, the fan blade 109 can be driven to rotate at a high speed, so as to drive the telescopic spring 107 to compress, make the abutting block 108 move in the direction of contraction of the telescopic spring 107, which is convenient for the operator to place the mounting frame 104 in the positioning frame 103, and then release the compressed telescopic spring 107, so that the abutting block 108 moves above the fixing frame 105 connected to the mounting frame 104 under the rebound and reset movement of the telescopic spring 107, and cooperate with the positioning frame 103 to limit the movement of the fixing frame 105 and the mounting frame 104, so that the mounting frame 104 can be fixedly installed on the cover plate 102. The driving member in the mounting frame 104 drives the fan blade 109 to rotate at a high speed, so as to discharge the heat generated during the operation of the components in the amplifier body 101 connected to the cover plate 102, and avoid the influence of heat accumulation on the normal operation of the amplifier body 101.

[0025] Secondly, the support frame 113 is fixedly connected to the mounting frame 104 and is located at one side of the mounting frame 104; the rotating motor 114 is fixedly connected to the support frame 113 and is located at one side of the support frame 113; the rotating shaft 115 is connected to the output end of the rotating motor 114 and is fixedly connected to the fan blades 109, and is located at a side of the rotating motor 114 close to the fan blades 109, the support frame 113 is welded to the mounting frame 104, the rotating motor 114 is bolted and fixedly installed on the support frame 113, the rotating motor 114 can be connected and fixed to the mounting frame 104 through the support frame 113, the rotating shaft 115 is connected to the output end of the rotating motor 114, the driving output of the rotating motor 114 can drive the rotation of the rotating shaft 115, the fan blades 109 are welded to the rotating shaft 115, and the rotation of the rotating shaft 115 can achieve the purpose of driving the fan blades 109 to rotate.

[0026] At the same time, the protective net 110 is fixedly connected to the mounting frame 104 and is located on the side of the mounting frame 104 close to the fan blades 109. The protective net 110 is bolted and fixed on the mounting frame 104. The protective net 110 can prevent debris from entering the mounting frame 104 and causing damage to the high-speed rotating fan blades 109.

[0027] In addition, the limit frame 111 is slidably connected to the fixed seat 106 and fixedly connected to the abutment block 108, and is located on the side of the fixed seat 106 close to the abutment block 108. There are four limit frames 111, and the four limit frames 111 are slidably connected in the corresponding two fixed seats 106. The fixed seat 106 can be used to connect, support and directionally limit the sliding of the limit frames 111. The four limit frames 111 are welded to the two abutment blocks 108. Through the movement of the limit frames 111, the movement of the abutment block 108 can be directionally limited, thereby making the movement of the abutment block 108 more stable.

[0028] Finally, the movable bracket 112 is fixedly connected to the abutment block 108 and is located on one side of the abutment block 108. There are two movable brackets 112, and the two movable brackets 112 are welded on the corresponding two abutment blocks 108. The movable bracket 112 can provide a corresponding fulcrum for the operator to move the abutment block 108, and the movable bracket 112 can facilitate the operator to drive the movement of the abutment block 108.

[0029] When using a Ka - band low - noise amplifier of this embodiment, by driving the compression of the telescopic spring 107, the abutting block 108 is moved in the direction of the contraction of the telescopic spring 107, so that it is convenient for the operator to place the mounting bracket 104 in the positioning bracket 103, and then release the compressed telescopic spring 107. The abutting block 108 is moved above the fixing bracket 105 connected to the mounting bracket 104 under the rebound and reset movement of the telescopic spring 107, and cooperates with the positioning bracket 103 to limit the movement of the fixing bracket 105 and the mounting bracket 104. Furthermore, the mounting bracket 104 can be fixedly installed on the cover plate 102. The driving member in the mounting bracket 104 drives the fan blade 109 to rotate at a high speed, and then can discharge the heat generated during the operation of the components in the amplifier body 101 connected to the cover plate 102, avoiding the influence of heat accumulation on the normal operation of the amplifier body 101.

[0030] The above - disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above - mentioned embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A Ka - band low - noise amplifier, comprising an amplifier body and a cover plate. The cover plate is disposed on the amplifier body and is located on one side of the amplifier body. It is characterized in that, it further comprises a heat - dissipation component, The heat - dissipation component includes a positioning frame, a mounting frame, a fixing frame, a fixing seat, a telescopic spring, a contact block, a fan blade and a driving member. The positioning frame is fixedly connected to the cover plate and is located on one side of the cover plate. The mounting frame is disposed on the positioning frame and is located on one side of the positioning frame. The fixing frame is fixedly connected to the mounting frame and is located on the side of the mounting frame close to the positioning frame. The fixing seat is fixedly connected to the cover plate and is located on one side of the cover plate. The telescopic spring is disposed on the fixing seat and is located on one side of the fixing seat. The contact block is connected to the telescopic spring and is located on the side of the telescopic spring close to the fixing frame. The fan blade is connected to the mounting frame through the driving member and is located on one side of the mounting frame. The driving member is disposed on the mounting frame and is connected to the fan blade.

2. The Ka - band low - noise amplifier according to claim 1, wherein, The driving member includes a support frame, a rotating motor and a rotating shaft. The support frame is fixedly connected to the mounting frame and is located on one side of the mounting frame; The rotating motor is fixedly connected to the support frame and is located on one side of the support frame; The rotating shaft is connected to the output end of the rotating motor, is fixedly connected to the fan blade, and is located on the side of the rotating motor close to the fan blade.

3. The Ka - band low - noise amplifier according to claim 1, wherein, The heat - dissipation component further includes a protective net. The protective net is fixedly connected to the mounting frame and is located on the side of the mounting frame close to the fan blade.

4. The Ka - band low - noise amplifier according to claim 1, wherein, The heat - dissipation component further includes a limiting frame. The limiting frame is slidably connected to the fixing seat, is fixedly connected to the contact block, and is located on the side of the fixing seat close to the contact block.

5. The Ka - band low - noise amplifier according to claim 1, wherein, The heat - dissipation component further includes a moving bracket. The moving bracket is fixedly connected to the contact block and is located on one side of the contact block.

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