CN117835678B - Phase-change radiator of microwave power amplifier - Google Patents
Phase-change radiator of microwave power amplifier Download PDFInfo
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- CN117835678B CN117835678B CN202410252247.6A CN202410252247A CN117835678B CN 117835678 B CN117835678 B CN 117835678B CN 202410252247 A CN202410252247 A CN 202410252247A CN 117835678 B CN117835678 B CN 117835678B
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- 238000003756 stirring Methods 0.000 claims abstract description 24
- 238000009792 diffusion process Methods 0.000 claims description 36
- 239000012782 phase change material Substances 0.000 abstract description 53
- 230000017525 heat dissipation Effects 0.000 abstract description 51
- 238000005191 phase separation Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract 2
- 239000012071 phase Substances 0.000 description 53
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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- 230000007547 defect Effects 0.000 description 3
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- 230000002195 synergetic effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a phase change radiator of a microwave power amplifier, belonging to the technical field of heat dissipation of microwave power amplifiers; the device comprises a shell, a heat radiation plate arranged in the shell, a phase change box arranged above the heat radiation plate and a fan; the phase change box can rotate by taking the vertical axis of the phase change box as a rotating shaft, the top wall of the phase change box is provided with a first opening, a stirring part is vertically arranged in the first opening, and the top of the stirring part is connected with the shell; the side wall of the shell is provided with an air inlet and an air outlet; the heat generated by the microwave power amplifier can be guided to the upper part of the heat dissipation plate by arranging the heat dissipation plate; the phase change box is arranged, so that heat above the heat dissipation plate can be absorbed; the phase change material in the phase change box can be rotated by rotating the phase change box, so that the phase separation problem of the phase change material is reduced; by providing the stirring section, the phase separation problem can be further reduced; through setting up the fan, can blow out the hot air of heating panel top fast to further improve radiating efficiency.
Description
Technical Field
The invention relates to the technical field of heat dissipation of microwave power amplifiers, in particular to a phase-change heat radiator of a microwave power amplifier.
Background
The power amplifier is an important component of the microwave equipment, if the amplifier fails, single-channel blocking of a circuit is caused, the reliability of microwave communication is affected, and on the basis of the power amplifier, the requirement of the microwave power amplifier on heat dissipation is extremely high.
The phase change material has the characteristics of high heat storage density, constant heat release temperature and the like, so the phase change material is already applied to a radiator of a microwave power amplifier at present. However, the phase-change material has a phase separation problem in the use process, namely, part of the crystalline solid is not dissolved in the heating and melting process and is settled to the bottom of the container to be separated from the liquid phase, so that the heat storage capacity of the phase-change material is reduced or the heat storage capacity of the phase-change material is lost.
Based on the defects of the phase change material, the service life of the phase change material is short in practical use, the heat dissipation efficiency of the radiator is seriously affected, and the phase change material has certain defects in practical use.
Disclosure of Invention
The invention aims to provide a phase change radiator of a microwave power amplifier, which can effectively stir phase change materials to effectively solve the problem of phase separation and further improve the radiating efficiency.
The invention aims at realizing the following technical scheme:
The phase change radiator of the microwave power amplifier comprises a shell, a radiating plate arranged in the shell, and a phase change box and a fan which are arranged above the radiating plate; the phase change box can rotate by taking a vertical axis of the phase change box as a rotating shaft, a first opening is formed in the top wall of the phase change box, a stirring part is vertically arranged in the first opening, and the top of the stirring part is connected with the shell; the side wall of the shell is provided with an air inlet and an air outlet.
Preferably, the bottom of phase transition case is provided with many connecting rods, and is many the bottom of connecting rod links to each other with a rotating ring jointly, the top of heating panel be provided with the rotation groove of rotating ring looks adaptation, the rotating ring with the rotation groove ball rotates to be connected.
Preferably, a plurality of radiating pipes are arranged between the radiating plate and the top wall of the shell, and the tops of the radiating pipes penetrate through the top wall of the shell and are provided with radiating fins.
Preferably, the stirring part comprises a central shaft and a plurality of stirring rods arranged on the outer wall of the central shaft.
Preferably, a diffusion chamber is arranged right above the first opening, the top wall of the diffusion chamber is rotatably connected with a fixed cylinder arranged in the shell, and the central shaft vertically penetrates through the second opening of the top wall of the fixed cylinder.
Preferably, a scraping plate is sleeved on a central shaft positioned in the diffusion chamber, and the scraping plate can be abutted against the inner wall of the diffusion chamber; the top of the central shaft is connected with a vertical telescopic device arranged on the shell.
Preferably, a placing cavity is formed in the periphery of the inner wall of the diffusion chamber.
Preferably, an inclined plane is arranged on the inner wall of the diffusion chamber and below the placement cavity.
Preferably, the phase change radiator further comprises a first gear sleeved on the outer wall of the phase change box, a second gear meshed with the first gear, and a motor for driving the second gear to rotate, and the motor is arranged at the top of the shell.
Preferably, a first buffer layer is arranged on the top surface of the heat dissipation plate and located right below the rotating groove, and a second buffer layer is arranged on the top surface of the heat dissipation plate and located right below the fan.
Compared with the prior art, the invention has the beneficial effects that:
the heat generated by the microwave power amplifier arranged at the bottom end of the heat dissipation plate can be quickly guided to the upper part of the heat dissipation plate by arranging the heat dissipation plate, so that the purpose of preliminary heat dissipation of the heat dissipation plate is realized; by arranging the phase change box, heat above the heat dissipation plate can be absorbed through phase change of the phase change material in the phase change box, so that the heat dissipation purpose is further realized; the phase change box is arranged in the shell in a rotating way, so that the phase change box can rotate, and further the phase change material in the phase change box rotates, so that the phase separation problem of the phase change material is reduced; however, in actual rotation, the rotation speed of the phase change box needs to be reduced as much as possible, and the shell body vibrates greatly due to the fact that the rotation speed is too high, so that the microwave power amplifier vibrates and is easy to drop off or separate from the heat dissipation plate, the heat dissipation effect of the microwave power amplifier is affected, and meanwhile, the performance of the microwave power amplifier is also affected when the vibration amplitude of the microwave power amplifier is too large; based on the method, on the basis of reducing the rotation speed of the phase change box, the stirring part is arranged in the phase change box, and when the phase change box rotates, the stirring part is in a static state, so that the phase change material collides with the stirring part for a plurality of times when rotating along with the phase change box, and the phase change material is stirred again in the phase change box, so that the uniformity of the phase change material is further improved, the problem that the vibration amplitude of the microwave power device is large due to the fact that the rotation speed of the phase change box is too high is effectively solved, and the phase separation problem is further reduced; in addition, because the phase-change box is rotationally arranged above the heat dissipation plate, in order to reduce friction between the phase-change box and the heat dissipation plate, the phase-change box and the heat dissipation plate cannot be completely attached when in actual arrangement, heat is difficult to quickly lead out from a gap due to the existence of the gap between the phase-change box and the heat dissipation plate, and meanwhile, a large amount of hot air is gathered above the heat dissipation plate, so that the heat dissipation efficiency of the air is extremely low, therefore, the hot air above the heat dissipation plate needs to be quickly led out as soon as possible, otherwise, the heat dissipation efficiency is seriously affected; based on this, set up the fan in the inside of casing, can blow out fast the air between phase change case and the heating panel gap to further improve radiating efficiency.
Through the synergistic effect of the devices, the heat generated by the microwave power amplifier can be rapidly led out, meanwhile, the phase separation problem of phase change materials in the phase change box can be effectively reduced, and the heat dissipation efficiency of the microwave power amplifier is effectively ensured.
Drawings
Fig. 1: schematic cross-sectional structure in the front view direction of the invention;
fig. 2: the phase change box is structurally schematic in the front view direction;
fig. 3: the structure schematic diagram of the rotating ring in the overlooking direction is adopted;
Fig. 4: the cross-sectional structure schematic diagram of the phase change box in the overlooking direction is shown in the invention;
fig. 5: the structure schematic diagram of the inclined plane in the overlooking direction in the invention;
fig. 6: the structure schematic diagram of the scraping plate in the overlooking direction in the invention;
Fig. 7: a structural schematic diagram of a diffusion chamber in the top view direction;
In the figure: 100-shell, 110-heat dissipation plate, 120-phase change box, 130-fan, 140-first opening, 150-air inlet, 160-air outlet, 170-connecting rod, 180-rotating ring, 190-rotating groove, 200-heat dissipation fin, 210-heat dissipation tube, 220-central shaft, 230-stirring rod, 240-diffusion chamber, 260-scraper, 270-placing cavity, 280-inclined plane, 290-first gear, 300-second gear, 310-motor, 320-first buffer layer, 330-second buffer layer, 340-fixed cylinder and 500-storage cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to fig. 1 to 7, but the scope of the present invention is not limited to the following description.
Example 1
In the prior art, the phase-change material has the problem of phase separation in the use process, so that the heat storage capacity of the phase-change material is reduced or lost, and the heat dissipation efficiency of the radiator is seriously affected.
Based on this, the present invention provides a phase change radiator of a microwave power amplifier, as shown in fig. 1 to 4, comprising a housing 100, a heat radiating plate 110 disposed inside the housing 100, and a phase change tank 120 and a fan 130 disposed above the heat radiating plate 110; the phase change box 120 can rotate by taking a vertical axis of the phase change box 120 as a rotating shaft, a first opening 140 is formed in the top wall of the phase change box 120, a stirring part is vertically arranged in the first opening 140, and the top of the stirring part is connected with the shell 100; the side wall of the housing 100 is provided with an air inlet 150 and an air outlet 160. Further, as shown in fig. 1-2, the phase-change radiator further includes a first gear 290 sleeved on the outer wall of the phase-change box 120, a second gear 300 meshed with the first gear 290, and a motor 310 driving the second gear 300 to rotate, where the motor 310 is disposed at the top of the housing 100. Further, as shown in fig. 1 and 4, the stirring part includes a central shaft 220, and a plurality of stirring rods 230 disposed on the outer wall of the central shaft 220, and the central shaft 220 is rotatably connected with the phase change tank 120.
As shown in fig. 1 and 2, a notch is disposed at the bottom of the housing 100, a storage cavity 500 for placing a microwave power amplifier is formed among the notch, the housing 100 and the heat dissipation plate 110, and a heat dissipation adhesive is disposed between the microwave power amplifier and the heat dissipation plate 110.
The phase change material disposed in the phase change box 120 is mostly inorganic phase change powder, and there is a phase separation phenomenon such as crystalline hydrated salt, molten salt, etc. due to the inorganic phase change powder. In order to improve the heat conduction speed, heat conduction powder, such as metal powder or existing heat conduction materials such as alumina, boron nitride, silicon micropowder and the like, can be added into the phase change powder. The phase change temperature of the phase change material is 25-90 ℃. The material of the heat dissipation plate 110 is aluminum alloy or copper, and the material of the phase change box 120 needs to be matched with the phase change material, i.e. a heat dissipation material compatible with the phase change material should be selected, which is the prior art.
In addition, in order to avoid external dust entering the housing 100 and affecting the operation of internal components, a filter screen may be disposed at the air inlet 150 or the air outlet 160 in practical implementation, which is a prior art and will not be described herein.
Working principle: the microwave power amplifier is arranged in the storage cavity 500, the heat-dissipating glue is arranged between the microwave power amplifier and the heat-dissipating plate 110, in the operation process, the motor 310 or the fan 130 can be turned on at any time according to the temperature inside the shell 100, or the controller can be arranged to control the operation of the fan 130 and the phase-change box 120, for example, a temperature sensor is arranged in the shell 100 to measure the temperature at the top of the heat-dissipating plate 110, and meanwhile, the temperature sensor, the fan 130 and the motor 310 are respectively and electrically connected with the controller, once the temperature range of the temperature sensor reaches the initial preset temperature, an electric signal is transmitted to the controller, the controller controls the motor 310 and the fan 130 to be started, and when the motor 310 operates, as shown in fig. 1 and 2, the second gear 300 drives the first gear 290 to rotate, so that the phase-change box 120 rotates at a rotating speed not higher than 15 r/min.
In specific implementation, the heat generated by the microwave power amplifier is sequentially diffused above the heat dissipation plate 110 along the heat dissipation glue and the heat dissipation plate 110, part of the heat is accumulated in the gap between the heat dissipation plate 110 and the phase change box 120 and other areas above the heat dissipation plate 110, and the part of accumulated hot air can be quickly blown out along the air outlet under the action of the fan 130, so that the heat dissipation efficiency is improved; and part of heat is absorbed by the phase change material in the phase change box 120, so as to realize the purpose of heat storage and further realize the purpose of heat dissipation. In addition, as the phase change box 120 rotates continuously, the phase separation degree of the phase change material in the interior can be effectively reduced; in the rotation process of the phase change material, the phase change material can be continuously collided with the stirring part, so that the mixing degree of the phase change material is improved, and the phase separation problem of the phase change material is further reduced.
Through the synergistic effect of the devices, the heat generated by the microwave power amplifier can be rapidly led out, and meanwhile, the phase separation problem of phase change materials in the phase change box 120 can be effectively reduced, and the heat dissipation efficiency of the microwave power amplifier is effectively ensured.
Further, as a preferred embodiment of the present invention, on the basis of example 1, as shown in fig. 1 to 3, a plurality of connecting rods 170 are provided at the bottom of the phase change box 120, the bottom ends of the plurality of connecting rods 170 are connected together with a rotating ring 180, a rotating groove 190 adapted to the rotating ring 180 is provided at the top of the heat dissipation plate 110, and the rotating ring 180 is in ball rotation connection with the rotating groove 190. In this embodiment, by setting the rotating ring 180 and the rotating groove 190, the phase-change box 120 can smoothly rotate, and by setting the plurality of connecting rods 170, more gaps can be formed between the phase-change box 120 and the heat dissipation plate 110, so that hot air between the two gaps can be taken away by the fan 130 quickly. If the connecting rod 170 is not provided, the rotating ring 180 is directly arranged on the bottom wall of the phase-change box 120, and then the hot air inside the rotating ring 180 is blocked in the rotating ring 180 and the rotating groove 190, so that an air channel is difficult to form at the bottom of the phase-change box 120, and the hot air inside the rotating ring 180 is difficult to be blown out by the fan 130, thereby seriously affecting the heat dissipation efficiency.
Further, as a preferred embodiment of the present invention, in example 1, as shown in fig. 1 to 4, a plurality of heat dissipating tubes 210 are disposed between the heat dissipating plate 110 and the top wall of the housing 100, and the top of the heat dissipating tubes 210 penetrate through the top wall of the housing 100 and are provided with heat dissipating fins 200. In this embodiment, by providing a plurality of heat dissipating tubes 210, heat on the heat dissipating plate 110 can be quickly led out from the heat dissipating tubes 210 and then led out along the heat dissipating fins 200 on the heat dissipating tubes 210, so as to further improve the heat dissipating efficiency on the basis of heat dissipation of the fan 130.
Further, in embodiment 1, the phase change material is rotated by the rotation of the phase change tank 120 and the stirring portion, and in actual implementation, a gap is provided between the central shaft 220 and the first opening 140 so that friction is not generated between the phase change tank 120 and the central shaft 220 when it is rotated. If only the phase change box 120 rotates, the probability of leakage of the phase change material from the first opening 140 is small under the action of centrifugal force, but due to the arrangement of the stirring part, the phase change material is likely to leak into or out of the gap after colliding with the stirring part during rotation, so that the loss of the phase change material is caused, and the heat dissipation efficiency is affected; even if a bearing is disposed between the central shaft 220 and the first opening 140, in order to reduce friction of the bearing, a certain gap exists inside the bearing, which also causes leakage of phase change material and affects smooth operation of the bearing, based on this, as shown in fig. 1,2 and 5-7, a diffusion chamber 240 is disposed right above the first opening 140, a top wall of the diffusion chamber 240 is rotationally connected with a fixed cylinder 340 disposed inside the housing 100, and the central shaft 220 vertically penetrates through a second opening of the top wall of the fixed cylinder 340. In this embodiment, by providing the diffusion chamber 240, the leaked phase-change material can be temporarily diffused into the diffusion chamber 240, and the phase-change material can be effectively prevented from being directly diffused into the second opening due to the certain height of the diffusion chamber 240, which results in loss of the phase-change material. In addition, in order to reduce the gap between the central shaft 220 and the fixed cylinder 340, the central shaft 220 and the fixed cylinder 340 are slidably connected.
Further, after the diffusion chamber 240 is provided, part of the phase change material adheres to the inner wall of the diffusion chamber 240, so that the phase change material originally in the phase change box 120 is deposited in the diffusion chamber 240, the phase change material in the phase change box 120 is reduced, and the overall uniformity and the heat dissipation efficiency of the phase change material are affected, therefore, as shown in fig. 1 and6, a scraper 260 is sleeved on the central shaft 220 positioned in the diffusion chamber 240, and the scraper 260 can be abutted against the inner wall of the diffusion chamber 240; the top of the central shaft 220 is connected to a vertical telescopic means, which may be a hydraulic rod, provided on the housing 100.
Specifically, the diffusion chamber 240 is rotatably connected to the scraper 260 while rotating in synchronization with the phase change tank 120. When the phase change tank 120 does not rotate, the hydraulic rod is started to enable the central shaft 220 to move downwards, and the phase change material attached to the inner wall of the diffusion chamber 240 can be scraped into the phase change tank 120 in the process that the scraper 260 continuously moves downwards.
Further, because the scraper 260 is in an abutting state with the diffusion chamber 240, when the diffusion chamber 240 rotates, friction is generated between the scraper 260 and the inner wall of the diffusion chamber 240, and abrasion is generated on the contact surface of the two, and therefore, as shown in fig. 1 and 6, a placing cavity 270 is surrounded on the inner wall of the diffusion chamber 240, and the scraper 260 and the inner wall of the placing cavity 270 are arranged in a clearance way, so that the scraper 260 can be positioned in the placing cavity 270 when the diffusion chamber 240 rotates, no friction is generated between the diffusion chamber 240 and the scraper 260, and the service life of the two is effectively prolonged. At the same time, the placement cavity 270 does not affect the scraping operation of the scraper 260.
In addition, because the central shaft 220 is not completely attached to the top wall of the diffusion chamber 240, there is a slight gap in practical implementation, that is, the phase-change material is not always in a completely sealed state, when the radiator is transferred or transported daily, the radiator is inclined, toppled or inverted, which may cause the phase-change material to diffuse above the scraper along the placement cavity 270, so that the phase-change material is difficult to fall back into the phase-change box 120 smoothly, and even part of the phase-change material leaks directly along the second opening, resulting in loss of the phase-change material. Because the scraper 260 is abutted with the diffusion chamber 240, the phase change material can be initially sealed, that is, when the radiator is transferred, transported or not used, the hydraulic rod is started, so that the scraper 260 moves below the placing cavity 270, and the phase change material below the scraper 260 is blocked, so that leakage of the phase change material from the second opening is avoided.
Further, during long-term scraping, the scraper 260 may be slightly worn, so that it is not very adhered to the diffusion chamber 240, so that it is difficult for the scraper 260 to form a strong sealing effect on the phase-change material, and on the basis of this, an inclined plane 280 is provided on the inner wall of the diffusion chamber 240 and below the placement cavity 270. Through setting up inclined plane 280, can make the bottom and the inclined plane 280 butt of scraper blade 260, and then further realize sealed, effectively overcome the defect that leads to the leakproofness to descend because of the scraper blade lateral wall wearing and tearing.
Further, when the phase change box 120 rotates or the fan 130 is running, the heat dissipation plate 110 vibrates, and the microwave power amplifier at the bottom end of the heat dissipation plate is affected, so that, for reducing vibration to the microwave power amplifier, a first buffer layer 320 is disposed on the top surface of the heat dissipation plate 110 and under the rotating groove 190, a second buffer layer 330 is disposed on the top surface of the heat dissipation plate 110 and under the fan 130, and the base of the fan 130 is disposed on the second buffer layer 330. In addition, vibration of the housing 100 may occur when the motor 310 vibrates, and on the basis of this, a third buffer layer is provided between the top cover of the housing 100 and the housing 100.
In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the terms "center", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "longitudinal", "transverse", etc. are based on the azimuth or positional relationship shown in fig. 1, are merely for convenience of description of the present patent and for simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present patent.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein and is not to be considered as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either by the foregoing teachings or by the teaching of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (8)
1. A phase change radiator of a microwave power amplifier, which is characterized by comprising a shell (100), a radiating plate (110) arranged in the shell (100), and a phase change box (120) and a fan (130) which are arranged above the radiating plate (110); the phase change box (120) can rotate by taking a vertical axis of the phase change box as a rotating shaft, a first opening (140) is formed in the top wall of the phase change box (120), a stirring part is vertically arranged in the first opening (140), and the top of the stirring part is connected with the shell (100); an air inlet (150) and an air outlet (160) are formed in the side wall of the shell (100);
The stirring part comprises a central shaft (220) and a plurality of stirring rods (230) arranged on the outer wall of the central shaft (220);
A diffusion chamber (240) is arranged right above the first opening (140), the top wall of the diffusion chamber (240) is rotatably connected with a fixed cylinder (340) arranged in the shell (100), and the central shaft (220) vertically penetrates through a second opening of the top wall of the fixed cylinder (340).
2. The phase change radiator of the microwave power amplifier according to claim 1, wherein a plurality of connecting rods (170) are arranged at the bottom of the phase change box (120), the bottom ends of the connecting rods (170) are connected with a rotating ring (180) together, a rotating groove (190) matched with the rotating ring (180) is arranged at the top of the radiating plate (110), and the rotating ring (180) is in ball rotating connection with the rotating groove (190).
3. A phase change radiator for a microwave power amplifier according to claim 2, wherein a plurality of radiating pipes (210) are arranged between the radiating plate (110) and the top wall of the housing (100), and the top of the radiating pipes (210) penetrates through the top wall of the housing (100) and is provided with radiating fins (200).
4. The phase change radiator of the microwave power amplifier according to claim 1, wherein a scraper (260) is sleeved on a central shaft (220) positioned inside the diffusion chamber (240), and the scraper (260) can be abutted against the inner wall of the diffusion chamber (240); the top of the central shaft (220) is connected with a vertical telescopic device arranged on the shell (100).
5. A phase change radiator for a microwave power amplifier according to claim 4, wherein the inner wall of the diffusion chamber (240) is provided with a placement cavity (270).
6. A phase change radiator for a microwave power amplifier according to claim 5, characterized in that an inclined surface (280) is provided on the inner wall of the diffusion chamber (240) and below the placement cavity (270).
7. The phase change radiator of a microwave power amplifier according to claim 1, further comprising a first gear (290) sleeved on an outer wall of the phase change tank (120), a second gear (300) meshed with the first gear (290), and a motor (310) for driving the second gear (300) to rotate, wherein the motor (310) is disposed on the top of the housing (100).
8. The phase change radiator of a microwave power amplifier according to claim 2, wherein a first buffer layer (320) is disposed on the top surface of the heat dissipating plate (110) and directly below the rotation groove (190), and a second buffer layer (330) is disposed on the top surface of the heat dissipating plate (110) and directly below the fan (130).
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