CN210093178U

CN210093178U - Ku wave band up-conversion power amplifier

Info

Publication number: CN210093178U
Application number: CN201921324743.9U
Authority: CN
Inventors: 邓彦
Original assignee: Chengdu Kaixuan Landa Electronic Technology Co Ltd
Current assignee: Chengdu Kaixuan Landa Electronic Technology Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-02-18
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a ku wave band up-conversion power amplifier, including studio and heat dissipation room, heat dissipation roof portion is equipped with fretwork portion, there is the fan at heat dissipation room middle part, there is the guide cover of opening jagged heat dissipation room bottom, open the side of heat dissipation room has vertical shutter, the fretwork portion entering of cold air from heat dissipation roof portion, the shutter from the heat dissipation roof side is followed again to the breach of guide cover with higher speed in the absorption through the fan flows, form the circulation flow with the outside air of heat dissipation room, obtain better radiating effect, the heat of avoiding a large amount of work to produce influence and destruction to components and parts, power amplifier's life is improved.

Description

Ku wave band up-conversion power amplifier

Technical Field

The utility model relates to a power amplifier field, concretely relates to ku wave band up-conversion power amplifier.

Background

The microwave power amplifier mainly completes power amplification of microwave signals, and has the advantages of narrow space, high output power, relatively high duty ratio, large heating during working of the amplifier, reduction of the output power or burnout of the amplifier if heat is not conducted out in time due to the fact that the power amplifier is designed as a chip, and high requirements for heat dissipation design.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ku wave band up-conversion power amplifier with good heat dispersion through reasonable structural design, obtains better radiating effect, avoids the heat that a large amount of work produced to exert an influence and destroy components and parts.

The utility model adopts the technical proposal that:

the utility model provides a ku wave band up-conversion power amplifier, includes studio, heat dissipation room and power amplification module, the top surface of studio is promptly the bottom surface of heat dissipation room, the top surface of studio is equipped with the heat-conducting strip, power amplification module arranges in inside the studio, waveguide load port, signal access port and the control port of power amplification module are followed respectively a pair of side of studio is drawn forth, fretwork portion has been seted up to the top surface of heat dissipation room, the indoor level of heat dissipation is equipped with the locating plate, the center fretwork of locating plate is fixed with the fan, a side of heat dissipation room is equipped with vertical shutter.

The heat conducting groove is arranged, so that the contact area of the upper surface of the working chamber and air is increased, and heat generated by the power amplifier during working can be quickly dissipated into the air. And set up the fan at the middle part of the heat dissipation room, then can accelerate the flow velocity of the inside air of heat dissipation room, the fretwork portion at heat dissipation room top makes the fan can inhale the inside of heat dissipation room with the cold air of its top, and the vertical shutter of a heat dissipation room side makes the inside hot-air of heat dissipation room discharge, has realized the exchange and the circulation of the inside air of heat dissipation room from this, makes the inside low temperature air entering of heat dissipation room constantly and takes away the heat.

Furthermore, a cylindrical air guide cover is fixed on the bottom surface of the heat dissipation chamber, the radius of the air guide cover is larger than the rotation radius of the fan, and a notch is formed in one side, close to the vertical louver, of the air guide cover.

The wind scooper plays a role in guiding cold air sucked by the fan from the outside, the flowing speed of the air is accelerated, and the notch in the wind scooper guides hot air in the heat dissipation chamber to flow to the vertical louver.

Furthermore, the central angle degree corresponding to the notch on the air guide cover is between 60 and 120 degrees.

The size of the gap is limited because if the gap of the wind scooper 25 is too small, the amount of air is limited, and if the gap is too large, the air cannot be well concentrated and the air flow speed is increased.

Furthermore, the upper end of the air guide cover is lower than the positioning plate, and the upper end of the air guide cover is not lower than the upper ends of the fan blades.

When the fan is completely covered inside the wind scooper, a better flow guiding effect can be achieved, and if the fan is arranged outside the wind scooper, cold air sucked into the heat dissipation chamber by the fan can be lost to different directions instead of all entering the heat dissipation chamber.

Furthermore, the area of the hollow part in the center of the positioning plate is larger than that of the fan, and a plurality of strip-shaped air inlets are formed in the positioning plate at positions except the central hollow part and are parallel to the heat conducting groove.

The strip-shaped air inlet enables other parts which are not covered by the fan to exchange air with the outside, and a secondary heat exchange effect is achieved.

Further, the offset direction of the vertical louver blades is the same as the rotating direction of the fan blades, and the distance between every two adjacent blades of the vertical louver is 5-8 mm.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

through set up the heat conduction groove on the studio surface, increased the area of studio with the air contact to increased for the radiating speed of power amplification module, the fan of top of deuterogamying for air flow rate has further accelerated the heat dissipation. The air guide cover and the vertical louver enable the heat dissipation chamber and external air to form good circulation, promote air flow and also play a role in accelerating heat dissipation. In addition, the power amplifier is in a regular cuboid shape, is convenient to place and is not easy to damage.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a perspective view of a ku-band up-conversion power amplifier;

fig. 2 is a front view of a ku-band up-conversion power amplifier;

FIG. 3 is a sectional view taken along line A-A;

fig. 4 is a top view of a ku-band up-conversion power amplifier.

Reference numerals:

1-a working chamber; 2-a heat dissipation chamber; 3-a power amplification module;

11-a heat conducting groove; 21-a hollowed-out portion; 22-a positioning plate; 23-a fan; 24-vertical blinds; 25-a wind scooper; 26-an air inlet;

31-waveguide load port; 32-a signal access port; 33-monitor control port.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

A ku waveband up-conversion power amplifier comprises a working chamber 1, a heat dissipation chamber 2 and a power amplification module 3, wherein the top surface of the working chamber 1 is the bottom surface of the heat dissipation chamber 2, the top surface of the working chamber 1 is provided with a heat conduction groove 11, the heat conduction groove 11 increases the contact area of the working chamber 1 and air, heat can be transferred from the surface of the working chamber 1 to the air more quickly, in the embodiment shown in figure 2, the cross section of the heat conduction groove 11 is rectangular, in other embodiments which are not shown, the cross section of the heat conduction groove 11 can also be wavy or triangular, the power amplification module 3 is arranged in the working chamber 1, in order to enable the heat generated by the power amplification module 3 to be dissipated timely, the outer surface of the power amplification module 3 is tightly attached to the inner surface of the working chamber 1, a waveguide load port 31, a signal access port 32 and a monitoring control port 33 of the power amplification module 3 are respectively led out from a pair of side surfaces, the waveguide load port 31 is arranged on one side face, the signal access port 32 and the monitoring control port 33 are arranged on the opposite side face, the hollow portion 21 is formed in the top face of the heat dissipation chamber 2, the positioning plate 22 is horizontally arranged in the heat dissipation chamber 2, the center of the positioning plate 22 is hollow and fixed with the fan 23, the shape of the outer contour of the hollow portion 21 is close to the shape of the rotation of the fan 23, the fan 23 rotates to suck air above the hollow portion 21 into the heat dissipation chamber 2, the gravity of the air and the suction force of the fan increase the flowing speed of the air, the vertical louver 24 is arranged on one side face of the heat dissipation chamber 2, hot air in the heat dissipation chamber 2 is discharged from the vertical louver 24, and therefore circulating air flows are formed, cold air enters from the hollow portion 21, and the heat on the top face of the working chamber 1 is taken away by the cold air and flows.

On the basis of the previous embodiment, a cylindrical air guide cover 25 is fixed on the bottom surface of the heat dissipation chamber 2, the radius of the air guide cover 25 is larger than the rotation radius of the fan 23, a gap is formed in one side, close to the vertical louver 24, of the air guide cover 25, the air guide cover 25 plays a role in guiding cold air sucked by the fan 23 from the upper side, and the circulation speed of the air in the heat dissipation chamber 2 is increased.

On the basis of the previous embodiment, the central angle corresponding to the notch on the wind scooper 25 shown in fig. 2 is 60 °, and in other embodiments not shown, the central angle is between 60 ° and 120 °, because if the notch of the wind scooper 25 is too small, the amount of air is limited, and if the notch is too large, the air flow speed cannot be increased well.

On the basis of the previous embodiment, the upper end of the air guiding cover 25 is lower than the positioning plate 22, and the upper end of the air guiding cover 25 is flush with the upper ends of the blades of the fan 23, that is, the air guiding cover 25 just covers the blades of the fan 23 completely inside, so that a better flow guiding effect is achieved.

On the basis of the above embodiment, the area of the hollow portion in the center of the positioning plate 22 is larger than the area of the fan 23, strip-shaped air inlets 26 are formed in the positioning plate 22 except the hollow portion in the center, and the air inlets 26 are parallel to the heat-conducting grooves 11, so that the cold air is introduced to the portion outside the range of the fan 23.

On the basis of the previous embodiment, the offset direction of the blades of the vertical louver 24 is the same as the rotating direction of the fan 23, and the distance between every two adjacent blades of the vertical louver 24 is 8 mm.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A ku waveband up-conversion power amplifier is characterized by comprising a working chamber (1), a heat dissipation chamber (2) and a power amplification module (3), the top surface of the working chamber (1) is the bottom surface of the heat dissipation chamber (2), the top surface of the working chamber (1) is provided with a heat conduction groove (11), the power amplification module (3) is arranged in the working chamber (1), a waveguide load port (31), a signal access port (32) and a monitoring control port (33) of the power amplification module (3) are respectively led out from a pair of side surfaces of the working chamber (1), a hollow part (21) is arranged on the top surface of the heat dissipation chamber (2), a positioning plate (22) is horizontally arranged in the heat dissipation chamber (2), the center of the positioning plate (22) is hollowed and fixed with a fan (23), and one side surface of the heat dissipation chamber (2) is provided with a vertical shutter (24).

2. The ku-band up-conversion power amplifier according to claim 1, wherein a cylindrical wind scooper (25) is fixed to the bottom surface of the heat dissipation chamber (2), the radius of the wind scooper (25) is larger than the rotation radius of the fan (23), and a notch is formed in one side of the wind scooper (25) close to the vertical louver (24).

3. The ku-band up-conversion power amplifier according to claim 2, wherein the central angle corresponding to the notch of the wind scooper (25) is between 60 ° and 120 °.

4. The ku-band up-conversion power amplifier according to claim 2, wherein the upper end of the wind scooper (25) is lower than the positioning plate (22), and the upper end of the wind scooper (25) is not lower than the upper ends of the blades of the fan (23).

5. The ku-band up-conversion power amplifier according to any one of claims 1 to 4, wherein the area of the hollow portion of the center of the positioning plate (22) is larger than the area of the fan (23), the positioning plate (22) is provided with a plurality of strip-shaped air inlets (26) at positions other than the hollow portion of the center, and the air inlets (26) are parallel to the heat conducting groove (11).

6. The ku band up-conversion power amplifier according to any one of claims 1 to 4, wherein the blades of the vertical louver (24) are offset in the same direction as the rotating direction of the fan (23), and the distance between every two adjacent blades of the vertical louver (24) is 5 to 8 mm.