CN114786438B - Temperature control system of radio frequency power amplifier - Google Patents
Temperature control system of radio frequency power amplifier Download PDFInfo
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- CN114786438B CN114786438B CN202210453445.XA CN202210453445A CN114786438B CN 114786438 B CN114786438 B CN 114786438B CN 202210453445 A CN202210453445 A CN 202210453445A CN 114786438 B CN114786438 B CN 114786438B
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- heat dissipation
- sleeve
- power amplifier
- dissipation sleeve
- radio frequency
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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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
-
- 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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
Abstract
The application relates to a temperature control system of a radio frequency power amplifier, which relates to the temperature control technology of the radio frequency power amplifier and comprises a heat dissipation sleeve with a tubular structure; the support mechanism is used for supporting the radio frequency power amplifier placed in the heat dissipation sleeve, and after the support mechanism supports the radio frequency power amplifier, a heat dissipation gap is formed between the radio frequency power amplifier and the inner wall of the heat dissipation sleeve; and the air blowing mechanism is used for blowing air into the heat dissipation gap. The temperature control system in this application can control the temperature on radio frequency power amplifier surface.
Description
Technical Field
The present application relates to a temperature control technique for a radio frequency power amplifier, and more particularly, to a temperature control system for a radio frequency power amplifier.
Background
A Radio Frequency (RF) power amplifier is a device that increases the voltage and current of a radio frequency signal. In the related art, a large amount of heat is generated during the usage of the rf power amplifier, and the rf power amplifier in the related art generally has a self-cooling structure, but in some hot environments, the self-cooling structure of the rf power amplifier may not meet the requirement, so that a temperature control system for improving the rf power amplifier is designed to be an urgent problem to be solved.
Disclosure of Invention
In order to improve the cooling effect of the radio frequency power amplifier in the related art, the present application provides a temperature control system for a radio frequency power amplifier.
The application provides a radio frequency power amplifier temperature control system, adopts following technical scheme:
a temperature control system of a radio frequency power amplifier comprises a heat dissipation sleeve in a tubular structure;
the support mechanism is used for supporting the radio frequency power amplifier placed in the heat dissipation sleeve, and after the support mechanism supports the radio frequency power amplifier, a heat dissipation gap is formed between the radio frequency power amplifier and the inner wall of the heat dissipation sleeve;
and the air blowing mechanism is used for blowing air into the heat dissipation gap.
By adopting the technical scheme, the air blowing mechanism blows air into the heat dissipation gap, so that the heat dissipation efficiency of the surface of the radio frequency power amplifier can be improved.
Optionally, an air cavity is arranged in the heat dissipation sleeve;
an air exhaust hole communicated with the air cavity is formed in the inner wall of the heat dissipation sleeve;
an air inlet hole communicated with the air cavity is formed in the heat dissipation sleeve;
the air blowing mechanism is arranged in the air cavity.
Through adopting above-mentioned technical scheme, reduce the occupation of blast air mechanism to the space.
Optionally, the air inlet hole is located at one end of the heat dissipation sleeve;
the air exhaust hole is located at the other end of the heat dissipation sleeve, and the air inlet hole faces towards the direction in which the air inlet hole is located and is obliquely arranged.
By adopting the technical scheme, the air flow entering the heat dissipation gap can flow more smoothly.
Optionally, the supporting mechanism includes a plurality of supporting rods fixedly connected to the inner lower wall of the heat dissipation sleeve.
By adopting the technical scheme, the support rod can support the radio frequency power amplifier placed in the heat dissipation sleeve, and the influence on the gas flow in the heat dissipation gap can be reduced.
Optionally, the supporting mechanism includes a plurality of vertically arranged supporting members;
the lower surface of the heat dissipation sleeve is provided with a plurality of mounting holes, and the mounting holes form branch holes on the heat dissipation sleeve on the upper side and the lower side of the air cavity;
the mounting holes correspond to the supporting pieces one by one;
the support piece penetrates through the mounting hole and then extends into the heat dissipation sleeve, and a connecting mechanism used for connecting the support piece and the heat dissipation sleeve together is arranged between the support piece and the heat dissipation sleeve.
By adopting the technical scheme, after the radio frequency power amplifier is installed in the heat dissipation sleeve, the supporting piece can support the radio frequency power amplifier.
Optionally, the connecting mechanism includes a plurality of connecting components, the connecting component including set up in the mounting hole and with the thread bush that the heat dissipation cover links to each other, support piece passes and threaded connection to the thread bush.
By adopting the technical scheme, the supporting piece can be connected into the threaded sleeve in a threaded manner by screwing the supporting piece, so that the detachable connection between the supporting piece and the threaded sleeve is realized, and the transportation of the temperature control system is facilitated.
Optionally, the connecting assembly further comprises a plurality of elastic pieces fixedly connected to the threaded sleeve and the heat dissipation sleeve.
Through adopting above-mentioned technical scheme, the air-blower can drive the vibration of heat dissipation cover at the in-process of work, because the setting of elastic component can reduce the influence of heat dissipation cover vibration to support piece and radio frequency power amplifier as far as.
Optionally, a plurality of limiting grooves are formed in the inner wall of the mounting hole, a plurality of limiting parts are fixedly connected to the corresponding threaded sleeves, the limiting parts correspond to the limiting grooves one to one, and the limiting parts extend into the limiting grooves.
Through adopting above-mentioned technical scheme, the staff of being convenient for installs support piece to in the heat dissipation cover.
Optionally, sealing cloth is fixedly connected between the inner wall of the branch hole and the threaded sleeve.
Through adopting above-mentioned technical scheme, improve the leakproofness in wind chamber, reduce the loss of wind intracavity air current.
Optionally, the radio frequency power amplifier further comprises a plurality of fixing seats used for being installed on the radio frequency power amplifier, the fixing seats correspond to the supporting pieces one by one, screw holes matched with the supporting pieces are formed in the fixing seats, and the supporting pieces are connected to the fixing seats through the screw holes in a threaded mode.
By adopting the technical scheme, the radio frequency power amplifier is more stable after being installed in the heat dissipation sleeve.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the radio frequency power amplifier is arranged in the heat dissipation sleeve of the temperature control system, and the air blower in the temperature control system blows air into the heat dissipation gap, so that the surface temperature of the radio frequency power amplifier is taken away, and the effect of controlling the surface temperature of the radio frequency power amplifier is achieved;
2. the mounting hole is formed in the heat dissipation sleeve, the support piece penetrates into the mounting hole, and the connecting mechanism is arranged between the support piece and the heat dissipation sleeve, so that the support piece and the heat dissipation sleeve are detachably connected, and the temperature control system is convenient to transport;
3. the elastic piece is arranged between the threaded sleeve and the heat dissipation sleeve, so that the influence of vibration of the heat dissipation sleeve on the radio frequency power amplifier can be greatly reduced.
Drawings
Fig. 1 is a schematic view of an external configuration of a temperature control system in embodiment 1 of the present application.
Fig. 2 is a state diagram of the rf power amplifier mounted to the temperature control system in embodiment 1 of the present application.
Fig. 3 is a schematic view showing a mounting structure of the blower mechanism on the heat dissipation sleeve in the present application.
Fig. 4 is a schematic view of an external configuration of a temperature control system in embodiment 2 of the present application.
Fig. 5 is a schematic view of a connection structure between the protruding support and the heat dissipation sleeve in embodiment 2 of the present application.
Fig. 6 is a partially enlarged schematic view of a portion a in fig. 5.
Description of reference numerals: 1. a heat dissipation sleeve; 11. a heat dissipation gap; 12. a wind cavity; 13. an air exhaust hole; 14. an air inlet hole; 15. mounting holes; 151. hole distribution; 1511. a limiting groove; 2. a support mechanism; 21. a support bar; 22. a support member; 3. a blower mechanism; 31. a blower; 4. a radio frequency power amplifier; 5. a connecting mechanism; 51. a connecting assembly; 511. a threaded sleeve; 5111. a stopper; 512. an elastic member; 6. sealing cloth; 7. a fixed seat; 71. and a screw hole.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a temperature control system of a radio frequency power amplifier. Referring to fig. 1, the temperature control system includes a heat dissipation sleeve 1, a support mechanism 2, and a blower mechanism 3.
The heat dissipation sleeve 1 is in a long strip shape, and the heat dissipation sleeve 1 is in a tubular structure with a rectangular cross section.
The supporting mechanism 2 is used for supporting the radio frequency power amplifier 4 in the heat dissipation sleeve 1.
Referring to fig. 2, in the process of dissipating heat from the rf power amplifier 4, the heat dissipation sleeve 1 is sleeved on the periphery of the rf power amplifier 4, and a heat dissipation gap 11 exists between the heat dissipation sleeve 1 and the rf power amplifier 4 under the action of the supporting mechanism 2.
The air blowing mechanism 3 is mounted to the heat dissipation sleeve 1 and used for blowing air into the heat dissipation gap 11, so that the temperature of the radio frequency power amplifier 4 can be controlled.
In order to improve the heat dissipation effect of the temperature control system on the radio frequency power amplifier 4, an annular air cavity 12 is arranged in the heat dissipation sleeve 1.
One end of the heat dissipation sleeve 1 is provided with a plurality of air exhaust holes 13 communicated with the air cavity 12, and the other end of the heat dissipation sleeve 1 is provided with a plurality of air inlet holes 14 communicated with the air cavity 12.
The number of the air exhaust holes 13 can be one, two, three or the like, the air exhaust holes 13 are arranged on the inner circumferential surface of the heat dissipation sleeve 1, and the air exhaust holes 13 are uniformly arranged around the axis of the heat dissipation sleeve 1.
The number of the air inlet holes 14 can be one, two, three and the like, the air inlet holes 14 are arranged on the peripheral surface of the heat dissipation sleeve 1, and the air inlet holes 14 are uniformly arranged around the axis of the heat dissipation sleeve 1.
The air discharge hole 13 is inclined toward the end where the air inlet hole 14 is located.
Referring to fig. 3, the blower mechanism 3 includes a plurality of blowers 31 installed into the air cavity 12, the plurality of blowers 31 may be one, two, three, etc., and the plurality of blowers 31 are uniformly arranged around the axis of the heat dissipation sleeve 1.
The blower 31 extracts external air through the air inlet hole 14 and then discharges the air into the heat dissipation gap 11 through the air outlet hole 13, thereby achieving the heat dissipation effect of the rf power amplifier 4, and meanwhile, the air discharged from the air outlet hole 13 can smoothly flow from one end of the heat dissipation sleeve 1 to the other end of the heat dissipation sleeve 1 due to the inclined arrangement of the air outlet hole 13. In addition, the air inlet holes 14 are arranged on the outer peripheral surface of the heat dissipation sleeve 1, so that air discharged from the heat dissipation gap 11 can be prevented from entering the air cavity 12 as far as possible. In addition, the blower 31 is arranged in the air cavity 12, so that the space can be saved.
Example 1
Referring to fig. 1, the supporting mechanism 2 includes a plurality of supporting rods 21 vertically and fixedly connected to the lower wall inside the heat dissipating sleeve 1, where the number of the supporting rods 21 is four, and the number of the supporting rods 21 may be one, two, three, and so on. After the rf power amplifier 4 is installed in the heat dissipation sleeve 1, the four support rods 21 support the rf power amplifier 4 at four corners of the rf power amplifier 4, respectively.
The implementation principle of the temperature control system of the radio frequency power amplifier in the embodiment of the application is as follows: the radio frequency power amplifier 4 is placed in the heat dissipation sleeve 1, the support mechanism 2 supports the radio frequency power amplifier 4, then the air blower 31 is started, the air blower 31 drives air flow to enter the air cavity 12 through the air inlet hole 14, then the air flow enters the heat dissipation gap 11 through the air outlet hole 13 and blows the air flow to the radio frequency power amplifier 4, and the support rod 21 is small in size and can reduce the influence on the air flow in the heat dissipation gap 11.
Example 2
Referring to fig. 4, the supporting mechanism 2 includes a plurality of vertically disposed supporting members 22, the number of the supporting members 22 may be one, two, three, etc., and in this embodiment, the number of the supporting members 22 is four for illustration.
Referring to fig. 5, the lower surface of the heat dissipation sleeve 1 is provided with a plurality of mounting holes 15 communicated with the air cavity 12, and the mounting holes 15 correspond to the support members 22 one to one. And branch holes 151 are formed on the heat dissipation sleeve 1 at the upper and lower sides of the air cavity 12 after each mounting hole 15 passes through the air cavity 12.
The supporting member 22 vertically passes through the mounting hole 15 and then extends into the heat dissipating sleeve 1. And a connecting mechanism 5 is arranged between the supporting member 22 and the heat dissipation sleeve 1, and the supporting member 22 and the heat dissipation sleeve 1 are connected together through the connecting mechanism 5.
After the rf power amplifier 4 is installed in the heat sink 1, the top ends of the plurality of supporting members 22 support the rf power amplifier 4 at four corners of the rf power amplifier 4.
The connecting mechanism 5 includes several groups of connecting assemblies 51, in this embodiment, the connecting assemblies 51 are provided with two groups, and the two groups of connecting assemblies 51 respectively correspond to the two branch holes 151 one to one.
The connecting assembly 51 includes a threaded sleeve 511 and a plurality of elastic members 512, the threaded sleeve 511 is coaxially disposed in the sub-hole 151, the elastic members 512 are selected from springs in this embodiment, and the plurality of elastic members 512 are all fixedly connected between the threaded sleeve 511 and the inner wall of the sub-hole 151. And a plurality of elastic members 512 are uniformly arranged around the axis of the threaded sleeve 511.
The support 22 passes through the threaded sleeve 511, and the support 22 is in threaded connection with the threaded sleeve 511. And the detachable connection between the supporting piece 22 and the heat dissipation sleeve 1 is realized, so that the transportation of the whole temperature control system is facilitated.
The two sets of the connection members 51 provided in each of the mounting holes 15 can improve the connection stability between the connection supporter 22 and the heat dissipation sleeve 1. In addition, the blower 31 may vibrate during operation to drive the heat dissipation sleeve 1 to vibrate, and due to the existence of the elastic element 512, the influence of the vibration of the heat dissipation sleeve 1 on the rf power amplifier 4 can be reduced as much as possible.
In order to facilitate the installation of the supporting member 22 to the threaded sleeve 511, a plurality of limiting grooves 1511 are vertically formed on the inner wall of the branch hole 151, a plurality of limiting members 5111 are fixedly connected to the outer peripheral surface of the corresponding threaded sleeve 511, and the plurality of limiting members 5111 extend into the limiting grooves 1511.
When a worker installs the supporting member 22 to the threaded sleeve 511, the worker only needs to screw the supporting member 22, and the supporting member 22 can pass through the threaded sleeve 511 more smoothly due to the cooperation between the limiting member 5111 and the limiting groove 1511 between the threaded sleeve 511 and the heat dissipation sleeve 1.
Further, after the limiting member 5111 extends into the limiting groove 1511, the limiting member 5111 does not contact with the inner wall of the limiting groove 1511. Only in the process of installing the support member 22 to the thread bushing 511, the limiting member 5111 abuts against the inner wall of the limiting groove 1511, the limiting groove 1511 limits the limiting member 5111, and at the moment, the support member 22 can be conveniently installed into the thread bushing 511 by the worker. Therefore, in the normal working process of the temperature control system, the influence of the vibration of the heat dissipation sleeve 1 on the radio frequency power amplifier 4 can be reduced.
Further, a sealing cloth 6 is disposed in the sub-hole 151, and the sealing cloth 6 is fixedly connected between the thread bushing 511 and the inner wall of the sub-hole 151. The sealing cloth 6 can shield the branch hole 151, thereby reducing the loss of the air flow in the air cavity 12.
Referring to fig. 5, the temperature control system further includes a plurality of fixing seats 7, and the fixing seats 7 may be fixed to the lower surface of the rf power amplifier 4 by gluing or the like. The lower surface of the fixing base 7 is provided with a screw hole 71 matched with the supporting piece 22. The plurality of fixing seats 7 correspond to the plurality of supporting pieces 22 one by one, and the top of each supporting piece 22 is in threaded connection with the corresponding fixing seat 7.
The radio frequency power amplifier 4 can be more stable after being installed in the heat dissipation sleeve 1 by the cooperation of the fixing base 7 and the supporting member 22.
The implementation principle of the temperature control system of the radio frequency power amplifier in the embodiment of the application is as follows: the radio frequency power amplifier 4 is placed in the heat radiation sleeve 1, then the supporting piece 22 is rotated, the supporting piece 22 penetrates through the thread sleeve 511 and then is connected to the fixed seat 7 in a threaded mode, the installation of the supporting pieces 22 is sequentially completed according to the mode, the supporting mechanism 2 supports the radio frequency power amplifier 4, then the air blower 31 is started, the air blower 31 drives air flow to enter the air cavity 12 through the air inlet hole 14, and then the air flow enters the air cavity 12 through the air outlet hole 13 and blows towards the radio frequency power amplifier 4.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. A temperature control system for a radio frequency power amplifier is characterized in that: comprises a heat dissipation sleeve (1) with a tubular structure;
the supporting mechanism (2) is used for supporting the radio frequency power amplifier (4) placed in the heat dissipation sleeve (1), and after the supporting mechanism (2) supports the radio frequency power amplifier (4), a heat dissipation gap (11) is formed between the radio frequency power amplifier (4) and the inner wall of the heat dissipation sleeve (1);
a blower mechanism (3) for blowing air into the heat dissipation gap (11);
an air cavity (12) is arranged in the heat dissipation sleeve (1);
an air exhaust hole (13) communicated with the air cavity (12) is formed in the inner wall of the heat dissipation sleeve (1);
an air inlet hole (14) communicated with the air cavity (12) is formed in the heat dissipation sleeve (1);
the air blowing mechanism (3) is arranged in the air cavity (12);
the supporting mechanism (2) comprises a plurality of supporting pieces (22) which are vertically arranged;
the lower surface of the heat dissipation sleeve (1) is provided with a plurality of mounting holes (15), and the mounting holes (15) are formed in the heat dissipation sleeve (1) on the upper side and the lower side of the air cavity (12) to form branch holes (151);
the mounting holes (15) correspond to the supporting pieces (22) one by one;
the supporting piece (22) penetrates through the mounting hole (15) and then extends into the heat dissipation sleeve (1), and a connecting mechanism (5) used for connecting the supporting piece (22) and the heat dissipation sleeve (1) together is arranged between the supporting piece (22) and the heat dissipation sleeve (1);
the connecting mechanism (5) comprises a plurality of connecting components (51);
the connecting component (51) comprises a threaded sleeve (511) which is arranged in the mounting hole (15) and connected with the heat dissipation sleeve (1), and the supporting piece (22) penetrates through and is in threaded connection with the threaded sleeve (511);
the connecting component (51) further comprises a plurality of elastic pieces (512) fixedly connected between the threaded sleeve (511) and the heat dissipation sleeve (1);
a plurality of limiting grooves (1511) are formed in the inner wall of the mounting hole (15), a plurality of limiting parts (5111) are fixedly connected to the threaded sleeve (511) correspondingly, the limiting parts (5111) correspond to the limiting grooves (1511) one to one, and the limiting parts (5111) stretch into the limiting grooves (1511).
2. The temperature control system of claim 1, wherein: the air inlet hole (14) is positioned at one end of the heat dissipation sleeve (1);
the air exhaust hole (13) is located at the other end of the heat dissipation sleeve (1), and the air inlet hole (14) faces towards one end where the air inlet hole (14) is located and is obliquely arranged.
3. The temperature control system of claim 1, wherein: the supporting mechanism (2) comprises a plurality of supporting rods (21) fixedly connected to the inner lower wall of the heat dissipation sleeve (1).
4. The temperature control system of claim 1, wherein: and a sealing cloth (6) is fixedly connected between the inner wall of the branch hole (151) and the threaded sleeve (511).
5. The temperature control system of claim 1, wherein: still include a plurality of fixing bases (7) that are used for installing to radio frequency power amplifier (4), a plurality of fixing base (7) and a plurality of support piece (22) one-to-one, seted up on fixing base (7) with screw (71) that support piece (22) cooperation was used, support piece (22) pass through screw (71) threaded connection to fixing base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210453445.XA CN114786438B (en) | 2022-04-27 | 2022-04-27 | Temperature control system of radio frequency power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210453445.XA CN114786438B (en) | 2022-04-27 | 2022-04-27 | Temperature control system of radio frequency power amplifier |
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| Publication Number | Publication Date |
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| CN114786438A CN114786438A (en) | 2022-07-22 |
| CN114786438B true CN114786438B (en) | 2022-12-02 |
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| CN202210453445.XA Active CN114786438B (en) | 2022-04-27 | 2022-04-27 | Temperature control system of radio frequency power amplifier |
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| CN109413517A (en) * | 2018-11-22 | 2019-03-01 | 广东兆磊电子科技有限公司 | A kind of power amplifier with heat dissipation shock-absorbing function |
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| US6744632B2 (en) * | 2002-09-20 | 2004-06-01 | Hewlett-Packard Development Company, L.P. | Composite construction baffle for modular electronic systems |
| CN203176837U (en) * | 2013-03-26 | 2013-09-04 | 常州华岳电子有限公司 | Anti-explosion energy-saving lamp |
| CN208783159U (en) * | 2018-08-15 | 2019-04-23 | 浙江日度科技有限公司 | A kind of outdoor LED display screen radiator |
| CN213028978U (en) * | 2020-07-14 | 2021-04-20 | 河北博琨电子科技有限公司 | Multi-air-duct heat dissipation device for radio frequency power amplifier |
| CN215113855U (en) * | 2021-06-23 | 2021-12-10 | 江苏翼邦生物技术有限公司 | Humidity control structure in exit of powdery flavor agent drying device |
| CN215500240U (en) * | 2021-08-02 | 2022-01-11 | 上海特隆奥斯科技发展有限公司 | Air cooling device of radio frequency broadband solid-state amplifier |
| CN113660809A (en) * | 2021-08-23 | 2021-11-16 | 苏州麦瑶信息科技有限公司 | Reverse reading device and reading method for special machine data of machining industry |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204316351U (en) * | 2015-01-19 | 2015-05-06 | 鹰潭百盈光电科技有限公司 | A kind of shell of solar inverter |
| CN109413517A (en) * | 2018-11-22 | 2019-03-01 | 广东兆磊电子科技有限公司 | A kind of power amplifier with heat dissipation shock-absorbing function |
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Address after: 100070 Floor 2, Building 2-5, No. 3, Haiying Road, Fengtai District, Beijing Patentee after: BEIJING AOFENGYUAN TECHNOLOGY CO.,LTD. Address before: 100071 2nd floor, building 2-5, No.3 Haiying Road, Fengtai District, Beijing Patentee before: Beijing aofengyuan Technology Co.,Ltd. |