CN110752528A - Dustproof heat abstractor of switch board - Google Patents
Dustproof heat abstractor of switch board Download PDFInfo
- Publication number
- CN110752528A CN110752528A CN201911161029.7A CN201911161029A CN110752528A CN 110752528 A CN110752528 A CN 110752528A CN 201911161029 A CN201911161029 A CN 201911161029A CN 110752528 A CN110752528 A CN 110752528A
- Authority
- CN
- China
- Prior art keywords
- box
- fixedly connected
- conducting strip
- electric
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000002274 desiccant Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Abstract
The invention relates to the technical field of electricity, and discloses a dustproof heat dissipation device of a power distribution cabinet, which comprises an electric cabinet box, wherein an electric box is arranged on the inner bottom wall of the electric cabinet box, a temperature sensing bag is arranged at the top of the electric box, an installation box is arranged at the top of the temperature sensing bag, an expansion object is arranged at the top of the installation box, a first conducting strip is arranged at the top of the expansion object, a spring is arranged on the inner top wall of the electric cabinet box, a moving rod is arranged at the bottom of the spring, a second conducting strip, a connecting rod and a fan are arranged at the bottom of the moving rod, a baffle is arranged on the right side of the connecting rod, a through hole is arranged on the right side of the baffle, and an air. This automatic heat abstractor of switch board, the gas in the electric cabinet gets into the install bin through the gas pocket of temperature sensing package, and when the temperature in the electric cabinet was higher, gaseous atmospheric pressure increased, and atmospheric pressure promotes the piston board and shifts up, and the inflation thing is heated the inflation, and the first conducting strip rebound of inflation thing extrusion and second conducting strip contact form the route, and the electric current drives the fan and rotates.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to a dustproof heat dissipation device of a power distribution cabinet.
Background
The switch board is the cabinet body that is used for depositing various power device, its inside electrical component is more, current magnitude and voltage are higher simultaneously, the inside intensification of electricity cabinet is faster, in time not dispel the heat in the electricity cabinet, can cause long-time receiving high temperature of inside components and parts to influence and take place ageing, influence power consumption safety, current heat abstractor sets up the vent or at electricity cabinet internally mounted heat abstractor in cabinet side face, the vent is in open state, the dust easily advances in the electricity cabinet is inside, and the inside electric power of electricity cabinet belongs to the overload, adopt the vent to ventilate and can't satisfy the heat dissipation demand of electricity cabinet, at electricity cabinet internally mounted heat abstractor, heat abstractor is in operating condition always, extravagant electric power, therefore, we provide a dustproof heat abstractor of switch board.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the dustproof heat dissipation device of the power distribution cabinet, which has the advantages of automatic heat dissipation and dust prevention and power saving, and solves the problems that the heat dissipation requirement of the electric cabinet cannot be met and the power is wasted.
(II) technical scheme
In order to realize the purposes of automatic heat dissipation and electric power saving, the invention provides the following technical scheme: the utility model provides a dustproof heat abstractor of switch board, includes the electricity cabinet case, the interior diapire fixedly connected with electric box of electricity cabinet case, the top fixedly connected with temperature sensing package of electric box, the top fixedly connected with install bin of temperature sensing package, it has the inflation thing to peg graft at the top of install bin, the inside swing joint of install bin has the piston plate, the interior diapire fixedly connected with of install bin removes damp box, the first conducting strip of top fixedly connected with of inflation thing, the interior roof fixedly connected with spring of electricity cabinet case, the bottom fixedly connected with carriage release lever of spring, the bottom fixedly connected with second conducting strip, connecting rod and the fan of carriage release lever, the right side fixedly connected with baffle of connecting rod, the opening has been seted up on the right side of baffle, the gas outlet has been seted up on the right side of electricity cabinet case.
Preferably, the dehumidifying box is filled with a drying agent for drying after dehumidifying.
Preferably, the second conducting strip is located right above the first conducting strip, and the first conducting strip and the second conducting strip are connected to drive the fan to rotate.
Preferably, the through opening extends to the left side of the connecting rod, and the through opening is used for exhausting gas in the electric cabinet to the outside of the electric cabinet.
Preferably, the through openings and the air outlets are arranged in a staggered mode.
Preferably, the top of the thermal bulb is provided with an air hole for allowing air in the thermal bulb to flow into the installation box.
Preferably, the fan is connected with the second conducting strip through a power line and used for driving the fan to rotate.
Preferably, the first conductive sheet is connected to the fan through a power line and is used for being conducted with the second conductive sheet.
(III) advantageous effects
Compared with the prior art, the invention provides a dustproof heat dissipation device of a power distribution cabinet, which has the following beneficial effects:
1. this automatic heat abstractor of switch board, the gas in the electric cabinet gets into the install bin through the gas pocket of temperature sensing package, and when the temperature in the electric cabinet was higher, gaseous atmospheric pressure increased, and atmospheric pressure promotes the piston board and shifts up, and the inflation thing is heated the thermal expansion, and the first conducting strip rebound of inflation thing extrusion and second conducting strip contact form the route, and the electric current drives the fan and rotates, and when the switch board dispels the heat in needs, the fan was opened the heat dissipation, saves electric power.
2. This automatic heat abstractor of switch board, second conducting strip shift up and promote the carriage release lever to shift up, drive connecting rod and baffle simultaneously and shift up, drive the opening and shift up with the gas outlet coincidence, with the gas outgoing in the electric cabinet, the electric cabinet is when not needing the heat dissipation, and the gas outlet is sheltered by the baffle, prevents into the dust.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the heat dissipation portion of the electric cabinet of the present application.
In the figure: 1-electric cabinet box, 2-electric box, 3-thermal bulb, 4-installation box, 5-dehumidification box, 6-expansion object, 7-first conducting strip, 8-second conducting strip, 9-connecting rod, 10-fan, 11-air outlet, 12-baffle, 13-through opening, 14-moving rod, 15-spring and 16-piston plate.
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.
Referring to fig. 1-2, a dustproof heat dissipation device for a power distribution cabinet comprises an electric cabinet 1, an electric cabinet 2 is fixedly connected to the inner bottom wall of the electric cabinet 1, a temperature sensing bulb 3 is fixedly connected to the top of the electric cabinet 2, an air hole is formed in the top of the temperature sensing bulb 3, an installation box 4 is fixedly connected to the top of the temperature sensing bulb 3, an expander 6 is inserted into the top of the installation box 4, the expander 6 is located between a first conducting strip 7 and a piston plate 16, a piston plate 16 is movably connected to the inside of the installation box 4, a dehumidifying box 5 is fixedly connected to the inner bottom wall of the installation box 4, a drying agent is filled in the dehumidifying box 5 for dehumidifying, a first conducting strip 7 is fixedly connected to the top of the expander 6, a spring 15 is fixedly connected to the inner top wall of the electric cabinet 1, a movable rod 14 is fixedly connected to the bottom of the spring 15, a second conducting strip 8 is fixedly connected to the bottom of the movable rod, fan 10 passes through the power cord and switches on with first conducting strip 7, and second conducting strip 8 is located first conducting strip 7 directly over, and connecting rod 9's right side fixedly connected with baffle 12, opening 13 has been seted up on baffle 12's right side, and opening 13 extends to connecting rod 9's left side, and gas outlet 11 has been seted up on the right side of electricity cabinet case 1, and gas outlet 11 is used for discharging the interior gas of electricity cabinet to the outside.
The working principle is as follows: the regulator cubicle work, the gas in the regulator cubicle flows into the install bin 4 through the gas pocket of the temperature sensing package 3, when the temperature in the regulator cubicle rises, the gas pressure increases, the atmospheric pressure promotes the piston plate 16 to move upwards, the piston plate 16 drives the dilatant 6 to move upwards, the dilatant 6 is heated and expanded and extrudes the first conducting strip 7 to move upwards and contact with the second conducting strip 8, the first conducting strip 7 and the second conducting strip 8 form the route, the electric current drives the fan 10 to rotate, promote the second conducting strip 8 and the movable rod 14 to move upwards at the same time, drive the connecting rod 9 and the baffle 12 to move upwards, drive the opening 13 to coincide with the gas outlet 11, the fan 10 rotates and drives the gas in the regulator cubicle to the opening 13, discharge outside the regulator cubicle through the opening 13, when the temperature in the regulator cubicle falls, the dilatant 6 contracts, drive the first conducting strip 7 and the piston plate 16 to move downwards, the fan 10 stops rotating, the shutter 12 and the second conductive plate 8 are reset.
To sum up, this automatic heat abstractor of switch board, gaseous entering install bin 4 through the gas pocket of thermal bulb 3 in the electric cabinet, when the temperature in the electric cabinet is higher, gaseous atmospheric pressure increases, atmospheric pressure promotes piston plate 16 and shifts up, inflation thing 6 thermal expansion, inflation thing 6 extrudees first conducting strip 7 and upwards moves and contact with second conducting strip 8, form the route, the electric current drives fan 10 and rotates, the switch board is when needing the heat dissipation, fan 10 opens the heat dissipation, save electric power, this automatic heat abstractor of switch board, second conducting strip 8 moves up and promotes carriage release lever 14 and shifts up, drive connecting rod 9 and baffle 12 simultaneously and shift up, drive opening 13 and shift up and coincide with gas outlet 11, gas in the electric cabinet is when not needing the heat dissipation, gas outlet 11 is sheltered from by baffle 12, prevent into the dust.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a dustproof heat abstractor of switch board, includes electric cabinet case (1), its characterized in that: the inner bottom wall of the electric cabinet box (1) is fixedly connected with an electric box (2), the top of the electric box (2) is fixedly connected with a temperature sensing bulb (3), the top of the temperature sensing bulb (3) is fixedly connected with an installation box (4), an expansion object (6) is inserted into the top of the installation box (4), the inner movable connection of the installation box (4) is provided with a piston plate (16), the inner bottom wall of the installation box (4) is fixedly connected with a dehumidifying box (5), the top of the expansion object (6) is fixedly connected with a first conducting plate (7), the inner top wall of the electric cabinet box (1) is fixedly connected with a spring (15), the bottom of the spring (15) is fixedly connected with a moving rod (14), the bottom of the moving rod (14) is fixedly connected with a second conducting plate (8), a connecting rod (9) and a fan (10), the right side of the connecting rod (9) is fixedly connected with a baffle plate (12, the right side of baffle (12) has seted up through-hole (13), gas outlet (11) have been seted up on the right side of electricity cabinet case (1).
2. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: and a drying agent is filled in the dehumidifying box (5).
3. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: the second conducting strip (8) is positioned right above the first conducting strip (7).
4. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: the through opening (13) extends to the left side of the connecting rod (9).
5. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: the through openings (13) and the air outlets (11) are arranged in a staggered mode.
6. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: the top of the thermal bulb (3) is provided with an air hole.
7. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: the fan (10) is connected with the second conducting strip (8) through a power line.
8. The dustproof heat dissipation device of the power distribution cabinet according to claim 1, wherein: the first conducting strip (7) is connected with the fan (10) through a power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911161029.7A CN110752528B (en) | 2019-11-24 | 2019-11-24 | Dustproof heat abstractor of switch board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911161029.7A CN110752528B (en) | 2019-11-24 | 2019-11-24 | Dustproof heat abstractor of switch board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110752528A true CN110752528A (en) | 2020-02-04 |
| CN110752528B CN110752528B (en) | 2021-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911161029.7A Active CN110752528B (en) | 2019-11-24 | 2019-11-24 | Dustproof heat abstractor of switch board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110752528B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111367380A (en) * | 2020-03-30 | 2020-07-03 | 郑州工程技术学院 | Dustproof heat dissipation machine case of computer |
| CN111405836A (en) * | 2020-04-29 | 2020-07-10 | 胡梦 | Intelligent 5G communication base station with automatic cooling function |
| CN111555135A (en) * | 2020-05-23 | 2020-08-18 | 季化海 | Power distribution cabinet heat dissipation equipment based on principle of expansion with heat and contraction with cold |
| CN111987626A (en) * | 2020-07-28 | 2020-11-24 | 河南工业职业技术学院 | Temperature protection structure and electrical equipment connecting device |
| CN112232993A (en) * | 2020-10-13 | 2021-01-15 | 武汉朋鼎科技有限公司 | Resource sharing system for education |
| CN112332275A (en) * | 2020-10-30 | 2021-02-05 | 重庆望变电气（集团）股份有限公司 | Intelligent low-voltage complete switch cabinet |
| CN112689442A (en) * | 2020-12-25 | 2021-04-20 | 哈尔滨龙易电气有限公司 | Outdoor electrical protection cabinet |
| CN112739091A (en) * | 2020-12-21 | 2021-04-30 | 李锐坤 | Electrical cabinet convenient to install and maintain |
| CN112787237A (en) * | 2021-01-16 | 2021-05-11 | 张鹏 | Electrical automation control cabinet based on toggle mechanism and drying device thereof |
| CN112928653A (en) * | 2021-01-23 | 2021-06-08 | 奚占洲 | Switch board with high heat dispersion |
| CN112993816A (en) * | 2021-02-23 | 2021-06-18 | 陈志光 | Energy-concerving and environment-protective switch board that dispels heat and adjust based on inside temperature variation |
| CN114071252A (en) * | 2020-07-29 | 2022-02-18 | 刘情 | Communication intelligence box structure |
| CN114210165A (en) * | 2021-12-16 | 2022-03-22 | 贵州鑫泰源开发投资有限公司 | Based on efficient aluminium foil processingequipment |
| CN114210190A (en) * | 2021-12-16 | 2022-03-22 | 贵州省六盘水双元铝业有限责任公司 | High-efficient gas cleaning device is used to electrolytic aluminum |
| CN114346351A (en) * | 2021-12-22 | 2022-04-15 | 白云峰 | Plasma brazing machine |
| CN116404557A (en) * | 2023-06-08 | 2023-07-07 | 广东伊斐净化科技有限公司 | Multipurpose direct current power supply cabinet |
| CN116799663A (en) * | 2022-03-04 | 2023-09-22 | 杨嗣文 | Energy-saving power distribution cabinet |
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| CN107425452A (en) * | 2017-09-13 | 2017-12-01 | 江苏银佳电子设备有限公司 | A kind of power distribution cabinet with automatic dissipating heat function |
| CN207183893U (en) * | 2017-09-13 | 2018-04-03 | 江苏银佳电子设备有限公司 | A kind of power distribution cabinet with automatic dissipating heat function |
| CN208923657U (en) * | 2018-10-12 | 2019-05-31 | 云南云图智造电气有限公司 | A kind of direct current cabinet cabinet body with high temperature warning function |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107425452A (en) * | 2017-09-13 | 2017-12-01 | 江苏银佳电子设备有限公司 | A kind of power distribution cabinet with automatic dissipating heat function |
| CN207183893U (en) * | 2017-09-13 | 2018-04-03 | 江苏银佳电子设备有限公司 | A kind of power distribution cabinet with automatic dissipating heat function |
| CN208923657U (en) * | 2018-10-12 | 2019-05-31 | 云南云图智造电气有限公司 | A kind of direct current cabinet cabinet body with high temperature warning function |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111367380B (en) * | 2020-03-30 | 2023-01-03 | 深圳市金卡科技有限公司 | Dustproof heat dissipation machine case of computer |
| CN111367380A (en) * | 2020-03-30 | 2020-07-03 | 郑州工程技术学院 | Dustproof heat dissipation machine case of computer |
| CN111405836A (en) * | 2020-04-29 | 2020-07-10 | 胡梦 | Intelligent 5G communication base station with automatic cooling function |
| CN111555135A (en) * | 2020-05-23 | 2020-08-18 | 季化海 | Power distribution cabinet heat dissipation equipment based on principle of expansion with heat and contraction with cold |
| CN111987626A (en) * | 2020-07-28 | 2020-11-24 | 河南工业职业技术学院 | Temperature protection structure and electrical equipment connecting device |
| CN111987626B (en) * | 2020-07-28 | 2022-07-19 | 河南工业职业技术学院 | Electrical equipment connecting device with temperature protection structure |
| CN114071252A (en) * | 2020-07-29 | 2022-02-18 | 刘情 | Communication intelligence box structure |
| CN114071252B (en) * | 2020-07-29 | 2024-04-16 | 深圳中科德能科技有限公司 | Communication intelligent box structure |
| CN112232993A (en) * | 2020-10-13 | 2021-01-15 | 武汉朋鼎科技有限公司 | Resource sharing system for education |
| CN112332275A (en) * | 2020-10-30 | 2021-02-05 | 重庆望变电气（集团）股份有限公司 | Intelligent low-voltage complete switch cabinet |
| CN112739091B (en) * | 2020-12-21 | 2022-04-22 | 浙江仁耀电气科技有限公司 | Electrical cabinet convenient to install and maintain |
| CN112739091A (en) * | 2020-12-21 | 2021-04-30 | 李锐坤 | Electrical cabinet convenient to install and maintain |
| CN112689442A (en) * | 2020-12-25 | 2021-04-20 | 哈尔滨龙易电气有限公司 | Outdoor electrical protection cabinet |
| CN112787237A (en) * | 2021-01-16 | 2021-05-11 | 张鹏 | Electrical automation control cabinet based on toggle mechanism and drying device thereof |
| CN112787237B (en) * | 2021-01-16 | 2023-06-23 | 四川省盛源鑫智能电气有限责任公司 | Electric automation control cabinet based on toggle mechanism |
| CN112928653A (en) * | 2021-01-23 | 2021-06-08 | 奚占洲 | Switch board with high heat dispersion |
| CN112993816A (en) * | 2021-02-23 | 2021-06-18 | 陈志光 | Energy-concerving and environment-protective switch board that dispels heat and adjust based on inside temperature variation |
| CN114210165A (en) * | 2021-12-16 | 2022-03-22 | 贵州鑫泰源开发投资有限公司 | Based on efficient aluminium foil processingequipment |
| CN114210190A (en) * | 2021-12-16 | 2022-03-22 | 贵州省六盘水双元铝业有限责任公司 | High-efficient gas cleaning device is used to electrolytic aluminum |
| CN114346351A (en) * | 2021-12-22 | 2022-04-15 | 白云峰 | Plasma brazing machine |
| CN116799663A (en) * | 2022-03-04 | 2023-09-22 | 杨嗣文 | Energy-saving power distribution cabinet |
| CN116404557A (en) * | 2023-06-08 | 2023-07-07 | 广东伊斐净化科技有限公司 | Multipurpose direct current power supply cabinet |
| CN116404557B (en) * | 2023-06-08 | 2023-10-13 | 广东伊斐新能源有限公司 | Multipurpose direct current power supply cabinet |
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| CN110752528B (en) | 2021-06-01 |
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Effective date of registration: 20210514 Address after: 226561 group 1, Jiali community, Tiaojing Town, Rugao City, Nantong City, Jiangsu Province Applicant after: Nantong Kemai Electronic Technology Co.,Ltd. Address before: 045200 Gugu temple, Guanshan Town, Pingding County, Yangquan City, Shanxi Province Applicant before: Li Zhe |
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Denomination of invention: A dust-proof cooling device for a power distribution cabinet Effective date of registration: 20220803 Granted publication date: 20210601 Pledgee: Jiangsu Rugao Rural Commercial Bank Co., Ltd. Daming Sub-branch Pledgor: Nantong Kemai Electronic Technology Co.,Ltd. Registration number: Y2022980011899 |
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Date of cancellation: 20220812 Granted publication date: 20210601 Pledgee: Jiangsu Rugao Rural Commercial Bank Co., Ltd. Daming Sub-branch Pledgor: Nantong Kemai Electronic Technology Co.,Ltd. Registration number: Y2022980011899 |
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Denomination of invention: A dust-proof cooling device for a power distribution cabinet Effective date of registration: 20220815 Granted publication date: 20210601 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Daming Sub branch Pledgor: Nantong Kemai Electronic Technology Co.,Ltd. Registration number: Y2022980012602 |
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Date of cancellation: 20230627 Granted publication date: 20210601 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Daming Sub branch Pledgor: Nantong Kemai Electronic Technology Co.,Ltd. Registration number: Y2022980012602 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A dustproof and heat dissipation device for distribution cabinets Effective date of registration: 20230628 Granted publication date: 20210601 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Daming Sub branch Pledgor: Nantong Kemai Electronic Technology Co.,Ltd. Registration number: Y2023980046473 |