CN112423564A - Heat dissipation case structure for electric power secondary equipment - Google Patents
Heat dissipation case structure for electric power secondary equipment Download PDFInfo
- Publication number
- CN112423564A CN112423564A CN202011398674.3A CN202011398674A CN112423564A CN 112423564 A CN112423564 A CN 112423564A CN 202011398674 A CN202011398674 A CN 202011398674A CN 112423564 A CN112423564 A CN 112423564A
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- China
- Prior art keywords
- heat dissipation
- case body
- heat
- dissipation case
- power secondary
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 154
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 25
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 48
- 239000007788 liquid Substances 0.000 claims description 31
- 239000000428 dust Substances 0.000 claims description 18
- 238000012423 maintenance Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000741 silica gel Substances 0.000 description 11
- 229910002027 silica gel Inorganic materials 0.000 description 11
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H05K7/20172—Fan mounting or fan specifications
-
- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
-
- 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
-
- 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
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明公开了一种用于电力二次设备的散热机箱结构，包括：散热机箱本体，散热机箱本体的一侧壁上设有一导向孔；开设在散热机箱本体一端侧上的用以装设一防尘网框的装配槽；与防尘网框底部相连的抵压板；设置在散热机箱本体的内部，且连接在抵压板上的压缩弹簧，压缩弹簧的顶端抵压在散热机箱本体的顶部壁面上，压缩弹簧的底端抵压在抵压板上；以及导热硅胶垫；其中：向上拉动防尘网框并联动抵压板，将电力二次设备装设在散热机箱本体的导向孔中，使保持电力二次设备的显示屏的一端朝向散热机箱本体的外部。实施本发明的用于电力二次设备的散热机箱结构，进一步提升散热性能；结构紧凑，减小体积，利于维修、维护及成本控制。
The invention discloses a heat-dissipating case structure for electric secondary equipment, comprising: a heat-dissipating case body, one side wall of the heat-dissipating case body is provided with a guide hole; The assembly slot of the dust-proof screen frame; the pressing plate connected to the bottom of the dust-proof screen frame; the compression spring arranged inside the heat-dissipating case body and connected to the pressing plate, the top of the compression spring presses against the top wall of the heat-dissipating case body On the upper side, the bottom end of the compression spring is pressed against the pressing plate; and the thermally conductive silicone pad; wherein: pull up the dustproof mesh frame and link the pressing plate, and install the secondary power equipment in the guide hole of the heat dissipation chassis body, so as to keep the One end of the display screen of the power secondary device faces the outside of the heat dissipation chassis body. The implementation of the heat dissipation case structure for the power secondary equipment of the present invention further improves the heat dissipation performance; the structure is compact, the volume is reduced, and the maintenance, maintenance and cost control are facilitated.
Description
Technical Field
The invention relates to the technical field of heat dissipation of electric power secondary equipment, in particular to a heat dissipation case structure for electric power secondary equipment.
Background
In the prior art, the secondary power equipment is auxiliary equipment for monitoring, measuring, controlling, protecting and adjusting primary equipment in a power system, namely equipment which is not directly connected with electric energy, and plays an important role in circuit supervision.
The existing used secondary power equipment is mostly relays and measuring instruments, and along with the continuous updating of the technology, the performance of a processor adopted by the secondary power equipment is higher and higher, so that the heat dissipation problem is continuously aggravated. The existing heat dissipation case body can only be connected with a heat dissipation port at one end of the electric power secondary equipment for auxiliary heat dissipation, so that the heat dissipation effect is poor, the electric power secondary equipment is not firmly fixed in the heat dissipation case body, and the problems of shaking and the like easily occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing a heat dissipation case structure for electric power secondary equipment, so that the heat dissipation performance is further improved; compact structure, reduced size, easy maintenance and cost control.
In order to solve the above technical problem, the present invention provides a heat dissipation case structure for an electric power secondary device, including: the heat dissipation case comprises a heat dissipation case body, wherein the heat dissipation case body is of a hollow case body structure, and a guide hole for mounting electric secondary equipment is formed in one side wall of the heat dissipation case body; one side of the guide hole extends to the interior of the heat dissipation case body; an assembly groove which is arranged on one end side of the radiating case body and is used for installing a dustproof screen frame, wherein the bottom end of the assembly groove is arranged to the top end position of the electric power secondary equipment after the electric power secondary equipment and the guide hole are assembled; the pressing plate is connected with the bottom of the dustproof net frame, and one end of the pressing plate extends into the radiating case body; the compression spring is arranged in the radiating case body and connected to the abutting plate, the top end of the compression spring abuts against the top wall surface of the radiating case body, and the bottom end of the compression spring abuts against the abutting plate; the heat-conducting silica gel pad is arranged in the radiating case body and is positioned on one side of the guide hole facing the inside of the radiating case body; wherein: the dustproof screen frame is pulled upwards and is linked with the abutting plate, the power secondary equipment is arranged in the guide hole of the heat dissipation case body, one end of the display screen of the power secondary equipment faces the outside of the heat dissipation case body, and the heat conducting silica gel pad conducts part of heat generated by the power secondary equipment to the inner space of the heat dissipation case body.
One side of the heat-conducting silica gel pad is connected with liquid cooling pipes which are arranged in a bending mode, and the top of the heat-radiating case body is provided with a liquid cooling box; the end part of the liquid cooling pipe is respectively connected with a first traction pump and a second traction pump, the upper end of the first traction pump is provided with a first guide pipe, and the upper end of the second traction pump is provided with a second guide pipe; the top ends of the first guide pipe and the second guide pipe respectively penetrate through the heat dissipation case body and extend to the interior of the liquid cooling case.
Wherein, the inside of heat dissipation machine case body has installed the backup pad, has evenly seted up a plurality of first louvres in the backup pad, and first radiator fan is installed to the bottom of backup pad.
The top end of the dustproof screen frame is connected with a pulling plate, and the pulling plate is arranged outside the radiating case body; the first dust filtering net is arranged in the dustproof net frame.
The other side wall of the radiating case body is provided with a second radiating fan communicated with the inside of the radiating case body in an inserted manner, the radiating case body is also provided with an air guide pipe matched with the second radiating fan, and one end, far away from the second radiating fan, of the air guide pipe is provided with a second dust filter.
And a second heat dissipation hole matched with the first heat dissipation fan is formed in the position, located between the threaded rods on the two sides, of the bottom surface of the heat dissipation case body, and a third dust filter screen is arranged inside the second heat dissipation hole.
Wherein, the top surface position of the heat dissipation case body between compression spring and liquid cooling case is equipped with the third louvre, and the inside fourth dust filter screen that is equipped with of third louvre.
Wherein, the top surface of the liquid cooling box is evenly provided with fourth radiating holes, and the outside of the liquid cooling box is provided with a third radiating fan which is matched with the fourth radiating holes for use.
Wherein, the four corners position of heat dissipation machine case body bottom is equipped with the landing leg.
The bearing is installed to the both sides of backup pad bottom, and bearing inner race and backup pad fixed connection, the fixed threaded rod of pegging graft of inner circle of bearing, the threaded rod passes through the helicitic texture with the bottom surface of heat dissipation chassis body and is connected and extend to the outside of heat dissipation chassis body, and the one end of threaded rod is equipped with the rotor plate.
The heat dissipation case structure for the electric power secondary equipment has the following beneficial effects: a heat dissipation machine case structure for electric power secondary equipment includes: the heat dissipation case comprises a heat dissipation case body, wherein a guide hole is formed in one side wall of the heat dissipation case body; an assembling groove which is arranged on one end side of the radiating case body and is used for installing a dustproof screen frame; the pressing plate is connected with the bottom of the dustproof net frame; the compression spring is arranged in the radiating case body and connected to the abutting plate, the top end of the compression spring abuts against the top wall surface of the radiating case body, and the bottom end of the compression spring abuts against the abutting plate; and a thermally conductive silicone pad; wherein: the dustproof screen frame is pulled upwards and is linked with the abutting plate, the power secondary equipment is arranged in the guide hole of the heat dissipation case body, one end of the display screen of the power secondary equipment faces the outside of the heat dissipation case body, and the heat conducting silica gel pad conducts part of heat generated by the power secondary equipment to the inner space of the heat dissipation case body. Further improving the heat dissipation performance; compact structure, reduced size, easy maintenance and cost control.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a heat dissipation case for an electric power secondary device according to an embodiment of the present invention.
Fig. 2 is a schematic side view of a heat dissipation case for an electric power secondary device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1-2 show a first embodiment of a heat dissipation case structure for an electric power secondary device according to the present invention.
The heat dissipation chassis structure for the power secondary device in this embodiment includes: the heat dissipation case comprises a heat dissipation case body 1, wherein the heat dissipation case body 1 is of a hollow case body structure, and a guide hole 2 for installing power secondary equipment 3 is formed in one side wall of the heat dissipation case body 1; one side of the guide hole 2 extends to the interior of the heat dissipation case body 1; an assembling groove 7 which is arranged on one end side of the heat dissipation case body 1 and is used for installing a dustproof screen frame 8, and the end of the assembling groove 7 extends to the top end position of the electric power secondary equipment 3 after the electric power secondary equipment 3 is assembled with the guide hole 2.
The pressing plate 10 is connected with the bottom of the dustproof screen frame 8, and one end of the pressing plate 10 extends into the radiating case body 1; the compression spring 11 is arranged inside the heat dissipation case body 1 and connected to the pressing plate 10, the top end of the compression spring 11 is pressed against the top wall surface of the heat dissipation case body 1, and the bottom end of the compression spring 11 is pressed against the pressing plate 10; and install the heat conduction silica gel pad 12 inside heat dissipation chassis body 1, heat conduction silica gel pad 12 is located one side that guiding hole 2 faced the inside of heat dissipation chassis body 1.
The dustproof screen frame 8 is pulled upwards and is linked with the abutting plate 10, the power secondary equipment 3 is installed in the guide hole 2 of the heat dissipation case body 1, one end of the display screen of the power secondary equipment 3 faces the outside of the heat dissipation case body 1, and the heat conduction silica gel pad 12 conducts part of heat generated by the power secondary equipment 3.
Further, one side of the heat-conducting silica gel pad 12 is connected with a liquid cooling pipe 13 which is arranged in a bending way, and the top of the heat-radiating case body 1 is provided with a liquid cooling box 14; the end part of the liquid cooling pipe 13 is respectively connected with a first traction pump 15 and a second traction pump 16, the upper end of the first traction pump 15 is provided with a first conduit 17, and the upper end of the second traction pump 16 is provided with a second conduit 18; the top ends of the first and second ducts 17 and 18 respectively penetrate through the heat dissipation cabinet body 1 and extend to the inside of the liquid cooling box 14.
Furthermore, a supporting plate 4 is arranged inside the heat dissipation case body 1. A plurality of first heat dissipation holes 5 are uniformly formed in the supporting plate 4, and a first heat dissipation fan 6 is installed at the bottom end of the supporting plate 4.
During specific implementation, be equipped with guiding hole 2 on a lateral wall of heat dissipation machine case body 1, the inside lower extreme of guiding hole 2 is equipped with electric power secondary equipment 3, inside electric power secondary equipment 3 one end extended to heat dissipation machine case body 1, one side that 3 lower extremes of electric power secondary equipment lie in heat dissipation machine case body 1 inside is equipped with backup pad 4, is equipped with a plurality of evenly distributed's first louvre 5 on backup pad 4, and backup pad 4 lower extreme is equipped with first radiator fan 6 that its first louvre 5 of cooperation used.
The setting of assembly groove 7 is located the inside of lateral wall on guiding hole 2 at heat dissipation machine case body 1, and the effect that sets up assembly groove 7 is: the rectangular dustproof screen frame 8 is spliced in the dustproof screen frame 8, a first dust filter 9 is arranged in the dustproof screen frame 8, the lower end of the dustproof screen frame 8 extends to the upper end of the power secondary equipment 3 and is provided with a pressing plate 10, one end of the pressing plate 10 extends to the interior of the heat dissipation case body 1, a compression spring 11 is arranged on one side, located in the interior of the heat dissipation case body 1, of the upper end of the pressing plate 10, and the upper end of the compression spring 11 is fixedly connected with the top surface of the interior of the heat dissipation case body 1.
All be equipped with heat conduction silica gel pad 12 around the power secondary equipment 3, the other end that heat conduction silica gel pad 12 is close to power secondary equipment 3 is equipped with the liquid cooling pipe 13 that the bending was arranged, one side that guiding hole 2 was kept away from to 1 outside upper end of heat dissipation machine case body is equipped with liquid cooling case 14, liquid cooling pipe 13 both ends extend to 1 inside upside of heat dissipation machine case body and are equipped with first traction pump 15 and second traction pump 16 respectively, first traction pump 15 and second traction pump 16 upper end are equipped with first pipe 17 and second pipe 18 respectively, first pipe 17 and second pipe 18 upper end all pass heat dissipation machine case body 1 and extend to the inside of liquid cooling case 14.
Furthermore, bearings 22 are installed on two sides of the bottom end of the supporting plate 4, an outer ring of each bearing 22 is fixedly connected with the supporting plate 4, an inner ring of each bearing 22 is fixedly inserted with a threaded rod 23, the threaded rod 23 is connected with the bottom surface of the heat dissipation case body 1 through a threaded structure and extends to the outside of the heat dissipation case body 1, and a rotating plate 24 is arranged at one end of each threaded rod 23.
In this embodiment, the top end of the dustproof screen frame 8 is connected with a pulling plate 31, and the pulling plate 31 is installed outside the heat dissipation case body 1; the first dust filter 9 is arranged in the dust-proof screen frame 8. A second heat dissipation fan 19 communicated with the inside of the heat dissipation case body 1 is inserted and arranged on the other side wall of the heat dissipation case body 1, an air guide pipe 20 adapted to the second heat dissipation fan 19 is further arranged on the heat dissipation case body 1, and a second dust filter 21 is arranged at one end, far away from the second heat dissipation fan 19, inside the air guide pipe 20. A second heat dissipation hole 25 used in cooperation with the first heat dissipation fan 6 is disposed on the bottom surface of the heat dissipation case body 1 between the threaded rods 23 at the two sides, and a third dust filter 26 is disposed inside the second heat dissipation hole 25. A third heat dissipation hole 27 is formed in the top surface of the heat dissipation case body 1 between the compression spring 11 and the liquid cooling tank 14, and a fourth dust filter 28 is disposed inside the third heat dissipation hole 27. The top surface of the liquid cooling box 14 is uniformly provided with fourth heat dissipation holes 29, and the outside of the liquid cooling box 14 is provided with a third heat dissipation fan 30 matched with the fourth heat dissipation holes 29.
During specific implementation, a second heat dissipation fan 19 communicated with the inside of the heat dissipation case body 1 is inserted and arranged on the other side wall where the guide hole 2 is arranged, an air guide pipe 20 used in cooperation with the second heat dissipation fan 19 is arranged on the inner wall of one side of the heat dissipation case body 1 where the second heat dissipation fan 19 is arranged, and a second dust filter 21 is arranged at one end, far away from the second heat dissipation fan 19, of the inside of the air guide pipe 20. A second heat dissipation hole 25 used in cooperation with the first heat dissipation fan 6 is disposed on the bottom surface of the heat dissipation case body 1 between the threaded rods 23 at the two sides, and a third dust filter 26 is disposed inside the second heat dissipation hole 25. A third heat dissipation hole 27 is formed in the top surface of the heat dissipation case body 1 between the compression spring 11 and the liquid cooling tank 14, and a fourth dust filter 28 is disposed inside the third heat dissipation hole 27. A plurality of uniformly distributed fourth heat dissipation holes 29 are formed in the top surface of the liquid cooling box 14, and a third heat dissipation fan 30 used in cooperation with the fourth heat dissipation holes 29 is arranged at the upper end of the outer portion of the liquid cooling box 14.
Furthermore, four corners of the bottom of the heat dissipation case body 1 are provided with support legs 32.
When the heat dissipation case structure for the secondary power equipment in this embodiment is specifically implemented, the dust screen frame 8 and the abutting plate 10 are pulled upwards through the pulling plate 31, then the secondary power equipment 3 is placed into the inside of the heat dissipation case body 1, it is ensured that one end of the display screen of the secondary power equipment 3 is slightly exposed out of the heat dissipation case body 1, the secondary power equipment 3 is conveniently used, then the rotating plate 24 is controlled to rotate, and the control supporting plate 4 is lifted and then plays a supporting role for the secondary power equipment 2. The pressing and pulling plate 31 is pressed by the pressing plate 10 moving downward under the action of the resilience of the compression spring 11, and then the first cooling fan 6, the second cooling fan 19, the third cooling fan 30, the first traction pump 15 and the second traction pump 16 are respectively started to start cooling traction to the inside of the cooling case body 1, the first traction pump 15 and the second traction pump 16 guide the water cooling liquid in the liquid cooling case 14 to circulate inside the liquid cooling pipe 13, the liquid cooling pipe 13 absorbs the heat transferred through the heat-conducting silicone pad 12 to dissipate the heat, and the first cooling fan 6, the second cooling fan 19 and the third cooling fan 30 directly dissipate the heat through air flow to the inside of the cooling case body 1.
The heat dissipation case structure for the electric power secondary equipment has the following beneficial effects: a heat dissipation machine case structure for electric power secondary equipment includes: the heat dissipation case comprises a heat dissipation case body, wherein a guide hole is formed in one side wall of the heat dissipation case body; an assembling groove which is arranged on one end side of the radiating case body and is used for installing a dustproof screen frame; the pressing plate is connected with the bottom of the dustproof net frame; the compression spring is arranged in the radiating case body and connected to the abutting plate, the top end of the compression spring abuts against the top wall surface of the radiating case body, and the bottom end of the compression spring abuts against the abutting plate; and a thermally conductive silicone pad; wherein: the dustproof screen frame is pulled upwards and is linked with the abutting plate, the power secondary equipment is installed in the guide hole of the heat dissipation case body, and one end of the display screen of the power secondary equipment faces the outside of the heat dissipation case body. And the heat-conducting silica gel pad conducts part of heat generated by the electric power secondary equipment to the inner space of the heat-radiating case body. Further improving the heat dissipation performance; compact structure, reduced size, easy maintenance and cost control.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398674.3A CN112423564B (en) | 2020-12-04 | 2020-12-04 | Heat dissipation case structure for electric power secondary equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398674.3A CN112423564B (en) | 2020-12-04 | 2020-12-04 | Heat dissipation case structure for electric power secondary equipment |
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| Publication Number | Publication Date |
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| CN112423564A true CN112423564A (en) | 2021-02-26 |
| CN112423564B CN112423564B (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011398674.3A Active CN112423564B (en) | 2020-12-04 | 2020-12-04 | Heat dissipation case structure for electric power secondary equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207022351U (en) * | 2017-05-08 | 2018-02-16 | 天津鑫威科科技有限公司 | Factory's instrument of high efficiency and heat radiation |
| CN208487377U (en) * | 2018-05-31 | 2019-02-12 | 广州天盛嘉禾网络科技有限公司 | A kind of fixed device of the display screen facilitating online course learning |
| CN208703479U (en) * | 2018-08-17 | 2019-04-05 | 广州伽罗信息科技有限公司 | The mounting structure of modified monitoring device |
| CN209056372U (en) * | 2018-09-27 | 2019-07-02 | 广西电网有限责任公司贵港供电局 | A kind of Anti-frandulent use of electricity mutual inductor |
| CN211181492U (en) * | 2020-01-02 | 2020-08-04 | 四川企易标信息科技有限公司 | Protection device for L ED screen display |
-
2020
- 2020-12-04 CN CN202011398674.3A patent/CN112423564B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207022351U (en) * | 2017-05-08 | 2018-02-16 | 天津鑫威科科技有限公司 | Factory's instrument of high efficiency and heat radiation |
| CN208487377U (en) * | 2018-05-31 | 2019-02-12 | 广州天盛嘉禾网络科技有限公司 | A kind of fixed device of the display screen facilitating online course learning |
| CN208703479U (en) * | 2018-08-17 | 2019-04-05 | 广州伽罗信息科技有限公司 | The mounting structure of modified monitoring device |
| CN209056372U (en) * | 2018-09-27 | 2019-07-02 | 广西电网有限责任公司贵港供电局 | A kind of Anti-frandulent use of electricity mutual inductor |
| CN211181492U (en) * | 2020-01-02 | 2020-08-04 | 四川企易标信息科技有限公司 | Protection device for L ED screen display |
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| CN112423564B (en) | 2023-04-18 |
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