CN111404062A - Switch cabinet heat dissipation device for transformer substation in cold area - Google Patents
Switch cabinet heat dissipation device for transformer substation in cold area Download PDFInfo
- Publication number
- CN111404062A CN111404062A CN202010334375.7A CN202010334375A CN111404062A CN 111404062 A CN111404062 A CN 111404062A CN 202010334375 A CN202010334375 A CN 202010334375A CN 111404062 A CN111404062 A CN 111404062A
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- Prior art keywords
- device main
- plate
- transformer substation
- main body
- heat dissipation
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Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to the field of transformer substation switch cabinets, in particular to a switch cabinet heat dissipation device for transformer substations in cold regions, which comprises a device main body, wherein a heating plate is fixedly arranged at the lower end in the device main body, a fitting block is movably arranged in the inner wall of the lower end of the device main body, a movable plate is movably arranged outside the lower end of the device main body, an air inlet groove is formed in the movable plate, the lower end of the heating plate is arranged in an inverted V shape, when the fan is started to make the external air enter into the interior of the device main body through the air inlet channel, the fan can be contacted with the heating plate heated to above zero degree, thereby improving the overall temperature of the air flow entering the device main body, avoiding damage caused by over-low temperature when the air flow contacts with electrical elements inside the device main body, meanwhile, the water vapor generated during the heating of the cold air flow can be condensed at the lower end of the heating plate through the inclined surface at the lower end of the heating plate, so that the moisture generated when the cold air is heated does not contact with the electric elements inside the device body.
Description
Technical Field
The invention relates to the technical field of transformer substation switch cabinets, in particular to a switch cabinet heat dissipation device for a transformer substation in a cold area.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The transformer substation in the power plant is a boosting transformer substation, the function of the boosting transformer substation is to boost the electric energy generated by the generator and feed the boosted electric energy into a high-voltage power grid, and the outdoor transformer substation is used for converting the high-voltage power in the power grid into low voltage for daily use of factory cells and the like.
But the cubical switchboard in current outdoor transformer substation mostly does not install the heat abstractor to the cold district in the north for electrical components in the cubical switchboard contacts with the air below the outside zero for a long time when the heat dissipation, thereby leads to causing electrical components to damage easily, and does not install the clearance structure to the air inlet filter screen simultaneously, thereby the air inlet blocks up easily when the great season of northern sand blown by the wind, greatly increased maintenance cost.
Disclosure of Invention
The utility model provides a cold area is cubical switchboard heat abstractor for transformer substation, the device can heat the outside air and then get into the inside heat dissipation that dispels of cubical switchboard, improves device life, can carry out automatic clearance to the filter screen simultaneously, avoids piling up too much sand and dust and leads to blockking up.
The utility model provides a cubical switchboard heat abstractor for transformer substation in cold areas, includes the device main part, the inside lower extreme fixed mounting of device main part has the hot plate, the inside movable mounting of device main part lower extreme inner wall has the laminating piece, the outside movable mounting of device main part lower extreme has the movable plate, the inside air inlet duct of having seted up of movable plate.
Preferably, the air inlet channel has been seted up to the inside lower extreme of device main part, the inside bottom fixed mounting of device main part has the fan, the hot plate lower extreme is the setting of falling V form, the inside fixed mounting of hot plate lower extreme has the electric heat line.
Preferably, the inner side of the lower end of the heating plate is fixedly provided with first water guide plates which are continuously arranged at intervals, the lower end of each first water guide plate is perpendicular to the inclined plane of the inner side of the heating plate, and the upper end of each first water guide plate is arranged in an arc shape.
Preferably, a second water guide plate is fixedly mounted on the inner side of the lower end of the heating plate relative to the upper end of the first water guide plate, and the second water guide plate and the first water guide plate are in the same structure and are arranged corresponding to the interval of the first water guide plate.
Preferably, the first water guide plate and the second water guide plate are both provided with water guide grooves, and the upper ends of the water guide grooves are arranged in an inclined arc shape with two sides expanded.
Preferably, the gas outlet has been seted up to hot plate middle-end inside, the hot plate upper end sets up for the V form, the inside both sides fixed mounting of device main part has the air guide block, the air guide block is the right angled triangle setting of inclined plane arc indent, the air guide block is for being by supreme grow setting gradually down in the inboard both sides volume of device main part.
Preferably, the moving plate is internally provided with an air inlet groove, the air inlet groove is internally and fixedly provided with a dust filter screen, and the air inlet groove and the air inlet channel are correspondingly arranged.
Preferably, both sides of the moving plate are fitted into a slide groove formed in a lower end of the apparatus main body, and an elliptical driving block is fixedly attached to a left side of the phase shift plate formed in the lower end of the apparatus main body.
As preferred, the laminating piece sets up the interval department at the intake duct, the inside connecting rod that has cup jointed in laminating piece upper end, connecting rod upper end swing joint has the turning block, turning block both sides fixed mounting has the carriage release lever, the shifting chute with the carriage release lever gomphosis is seted up to the inside both sides of turning block relatively of device main part lower extreme, the inboard fixed mounting of shifting chute has the vibrations lug that obtuse angle shape set up.
Preferably, the moving groove is continuously bent.
Compared with the prior art, the invention has the following beneficial effects:
1. the lower end of the heating plate is arranged in an inverted V shape, and the electric heating wire is fixedly arranged in the lower end of the heating plate, when the fan is started to enable outside air to enter the device main body through the air inlet channel, the fan can be contacted with the heating plate heated to above zero, so that the overall temperature of the air flow entering the device main body is improved, the damage caused by over-low temperature when the fan is contacted with electric elements in the device main body is avoided, meanwhile, water vapor generated when cold air flow is heated can be condensed at the lower end of the heating plate through the inclined surface at the lower end of the heating plate, the water vapor gradually moves upwards under the action of the air flow, then is guided downwards under the action of the cambered surface at the upper end of the first water guide plate and finally is discharged out of the device main body from the water outlet, so,
2. set up for the interval through first water deflector, and the second water deflector sets up the interval department at first water deflector, when making can the at utmost with the steam in the air derive downwards, can not influence the air current and get into device main part from the gas outlet inside, the guiding gutter has all been seted up on rethread first water deflector and the second water deflector, and the guiding gutter upper end sets up for the slope arc of looks both sides expansion, when making the water droplet of steam condensation more get into on the water deflector, let the water droplet can not leave on the water deflector, thereby guarantee the drainage efficiency of water deflector.
3. Be the V form setting through the hot plate upper end, and the inside both sides fixed mounting of device main part has the air guide piece, when making the air current pass through gas outlet entering device main part inside, can be guided by the inclined plane looks both sides of hot plate upper end, make can further let the steam in the air current condense on the hot plate, can pass through the cambered surface contact with the air guide piece in the time, thereby guide the air current from both sides to the electrical components in the device main part on, make the contact efficiency of air current with electrical components improve, the radiating efficiency improves, the volume of rethread air guide piece in the device main part is by lower supreme grow gradually setting, make can let every air guide piece can both contact with the air current of upwards moving, avoid lower extreme air guide piece to shelter from the air guide piece of upper end, thereby guarantee electrical components's even heat dissipation.
4. The dust filtering net is arranged in the air inlet groove on the movable plate, so that the dust in the air flow entering the air inlet channel can be blocked, the normal operation of the inside of the device main body is ensured, wherein the driving block is driven by the motor to rotate, the elliptical appearance of the driving block can be utilized, so that the movable plate is intermittently driven to overcome the acting force of the springs in the sliding grooves at the two sides of the movable plate to move, the air inlet groove and the air inlet channel can be intermittently staggered, when the air inlet groove and the air inlet channel are staggered, the laminating block can move downwards under the action of gravity to be contacted with the dust filtering net, meanwhile, the movable rod can move downwards in the movable groove under the action of the spring, so that the zigzag lug at the outer side of the movable rod is contacted with the vibrating lug, the vibration transmitted to the laminating block is generated, and the dust blocked on the dust filtering net is vibrated, reach the automatic effect of clearing up the dirt net of straining, set up for buckling in succession through the shifting chute simultaneously for can increase the required time of carriage release lever downstream in the shifting chute, thereby improve the duration that produces vibrations, further improve the clearance effect of straining the dirt net.
Drawings
FIG. 1 is a front view of the main body of the apparatus of the present invention;
FIG. 2 is a perspective view of the interior of the main body of the apparatus of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;
FIG. 4 is a left side view of the sink of the present invention;
FIG. 5 is a partial perspective view of a heating plate according to the present invention;
FIG. 6 is a left side view of a first water deflector of the present invention;
FIG. 7 is a top view of the moving plate of the present invention.
In FIGS. 1-7: 1-device body, 2-heating plate, 3-fan, 4-water outlet, 5-electric heating wire, 6-air outlet, 7-air inlet channel, 8-moving plate, 9-air inlet groove, 10-first water deflector, 11-second water deflector, 12-air guide block, 13-attaching block, 14-connecting rod, 15-moving groove, 16-moving rod, 17-rotating block, 18-dust filtering net, 19-vibration bump, 20-water guide groove and 21-driving block.
Detailed Description
Referring to fig. 1 to 7, a schematic plan structure and a schematic perspective structure of a heat dissipation device of a switch cabinet for a transformer substation in a cold area are shown.
The utility model provides a cubical switchboard heat abstractor for transformer substation in cold areas, includes device main part 1, and 1 inside lower extreme fixed mounting of device main part has hot plate 2, and 1 inside movable mounting of lower extreme inner wall of device main part has laminating piece 13, and 1 outside movable mounting of lower extreme of device main part has movable plate 8, and movable plate 8 is inside to have seted up air inlet duct 9.
In the concrete implementation, intake duct 7 has been seted up to the inside lower extreme of device main part 1, the inside bottom fixed mounting of device main part 1 has fan 3, 2 lower extremes of hot plate are the setting of the form of falling V, the inside fixed mounting of 2 lower extremes of hot plate has electric heat line 5, then when the fan starts to pass through intake duct 7 admission plant main part 1 inside with the outside air, can with be heated to the hot plate 2 contact more than the zero degree, thereby improve the bulk temperature behind in the air current admission plant main part 1, the low temperature is crossed when avoiding contacting with the inside electrical components of device main part 1 and is caused the damage, simultaneously through the inclined plane of 2 lower extremes of hot plate, make the steam that produces can condense at 2 lower extremes of hot.
In the concrete implementation, 2 inboard fixed mounting in lower extreme of hot plate has the first water deflector 10 that continuous interval set up, first water deflector 10 lower extreme for with 2 inboard inclined planes of hot plate set up perpendicularly, and the upper end is the arc setting for during the water droplet moves up gradually under the effect of air current, can guide downwards under the cambered surface effect of the upper end of first water deflector 10, then inside 4 eduction gear main parts 1 from the outlet, moisture that produces when making the cold air heating can not contact with the inside electrical components of device main parts 1.
In specific implementation, a second water deflector 11 is fixedly mounted on the inner side of the lower end of the heating plate 2 relative to the upper end of the first water deflector 10, the second water deflector 11 and the first water deflector 10 are in the same structure and are arranged corresponding to the interval of the first water deflector 10, so that the water vapor in the air can be guided out downwards to the greatest extent, and meanwhile, the air flow cannot be influenced to enter the device main body 1 from the air outlet.
In specific implementation, the water guide grooves 20 are formed in the first water guide plate 10 and the second water guide plate 11, and the upper ends of the water guide grooves 20 are arranged in an inclined arc shape with two sides expanded, so that water drops condensed by water vapor can enter the water guide plates more easily, and meanwhile, the water drops can not leave the water guide plates, and the drainage efficiency of the water guide plates is ensured.
In the specific implementation, an air outlet 6 is arranged in the middle end of the heating plate 2, the upper end of the heating plate 2 is arranged in a V shape, air guide blocks 12 are fixedly arranged on two sides in the device main body 1, the air guide blocks 12 are arranged in a right-angled triangle shape with an arc-shaped concave surface, the volumes of the air guide blocks 12 on two sides of the inner side of the device main body 1 are gradually increased from bottom to top, so that when air enters the device main body 1 through the air outlet 6, the air can be guided by two sides of the inclined surface at the upper end of the heating plate 2, water vapor in the air can be further condensed on the heating plate 2, meanwhile, the air can be contacted with the arc surface of the air guide blocks 12, so that the air can be guided to electrical elements in the device main body 1 from two sides, the contact efficiency of the air and the electrical elements is improved, the heat dissipation efficiency is improved, and the air guide blocks 12 are gradually increased from bottom, the lower end air guide block 12 is prevented from shielding the upper end air guide block 12, thereby ensuring the uniform heat dissipation of the electrical elements.
In specific implementation, an air inlet groove 9 is formed in the moving plate 8, a dust filtering net 18 is fixedly mounted in the air inlet groove 9, and the air inlet groove 9 and the air inlet channel 7 are correspondingly arranged, so that sand and dust in air flow entering the air inlet channel 7 can be blocked, and normal operation of the interior of the device main body 1 is guaranteed.
In the specific implementation, two sides of the moving plate 8 are embedded in the sliding grooves at the lower end of the device main body 1, and the oval driving block 21 is fixedly installed at the left side of the phase shifting moving plate 8 at the lower end of the device main body 1, so that the oval shape of the driving block 21 can be utilized, and therefore the intermittent driving moving plate 8 overcomes the acting force of the springs in the sliding grooves at two sides to move, and the air inlet grooves 9 and the air inlet channels 7 can be intermittently staggered.
In the specific implementation, the attaching block 13 is arranged at the interval of the air inlet channel 7, the connecting rod 14 is sleeved inside the upper end of the attaching block 13, the upper end of the connecting rod 14 is movably connected with a rotating block 17, moving rods 16 are fixedly arranged on both sides of the rotating block 17, moving grooves 15 which are embedded with the moving rods 16 are arranged on both sides of the rotating block 17 inside the lower end of the device main body 1, vibration lugs 19 which are arranged in an obtuse angle shape are fixedly arranged on the inner sides of the moving grooves 15, so that when the air inlet groove 9 is crossed with the air inlet channel 7, the joint block 13 can move downwards under the action of gravity to be contacted with the dust filter 18, at the same time, the moving rod 16 can move downwards in the moving slot 15 under the action of the spring, so that the saw-toothed lug on the outer side of the moving rod 16 can be used to contact with the vibration lug 19, thereby generating vibration transmitted to the attaching block 13 and vibrating the dust blocked on the dust filter 18 to achieve the effect of automatically cleaning the dust filter 18.
In a specific embodiment, the moving slot 15 is continuously bent, so that the time required for the moving rod 16 to move downwards in the moving slot 15 can be increased, thereby increasing the duration of the vibration and further improving the cleaning effect of the dust screen 18.
The working principle of the switch cabinet heat dissipation device for the transformer substation in the cold region is as follows.
Firstly, the lower end of the heating plate 2 is arranged in an inverted V shape, and an electric heating wire 5 is fixedly arranged in the lower end of the heating plate 2, when a fan is started to enable external air to enter the device main body 1 through an air inlet 7, the fan can be contacted with the heating plate 2 heated to above zero, so that the overall temperature of the air flow entering the device main body 1 is improved, the damage caused by low temperature when the fan is contacted with electric elements in the device main body 1 is avoided, meanwhile, through the inclined surface at the lower end of the heating plate 2, water vapor generated during heating of cold air flow can be condensed at the lower end of the heating plate 2 and gradually moves upwards under the action of the air flow, then the water vapor is guided downwards under the action of the cambered surface at the upper end of the first water guide plate 10 and finally is discharged out of the device main body 1 from the water outlet 4, so that the water generated during heating of the cold air cannot be, the second water deflector 11 is arranged at the interval of the first water deflector 10, so that the air flow can be guided out downwards from the air outlet 6 without affecting the air flow, the water deflector 10 and the second water deflector 11 are both provided with water chutes 20, the upper ends of the water chutes 20 are arranged in an inclined arc shape with two sides expanded, so that water drops condensed by the water vapor can enter the water deflectors more easily, the water drops can not leave the water deflectors, the drainage efficiency of the water deflectors is ensured, the upper ends of the heating plates 2 are arranged in a V shape, and the air guide blocks 12 are fixedly arranged on two sides in the device main body 1, so that the air flow can be guided by two sides of the inclined plane at the upper end of the heating plate 2 when entering the device main body 1 through the air outlet 6, the water vapor in the air flow can be condensed on the heating plate 2 and can contact with the cambered surface of the air guide blocks 12, thereby guiding the air flow from two sides to the electrical components in the device main body 1, improving the contact efficiency of the air flow and the electrical components, improving the heat dissipation efficiency, gradually increasing the volume of the air guide blocks 12 in the device main body 1 from bottom to top, enabling each air guide block 12 to be in contact with the air flow moving upwards, avoiding the air guide block 12 at the upper end from being shielded by the air guide block 12 at the lower end, thereby ensuring the uniform heat dissipation of the electrical components, then blocking the dust in the air flow entering the air inlet 7 by arranging the dust filtering net 18 in the air inlet groove 9 on the movable plate 8, ensuring the normal operation of the inside of the device main body 1, wherein the driving block 21 is driven by the motor to rotate, enabling the elliptical appearance of the driving block 21 to be utilized, thereby intermittently driving the movable plate 8 to overcome the acting force of the springs in the chutes at two sides to move, and enabling the air inlet 9 and the air inlet 7 to be intermittently staggered, through the setting of laminating piece 13 in the interval department of intake duct 7, make when intake duct 9 and intake duct 7 are crisscross, laminating piece 13 can move down and filter dirt net 18 and contact under the effect of gravity, the carriage release lever 16 can move down in carriage release lever 15 under the effect of spring simultaneously, make can utilize the lug of the 16 outside cockscomb structure of carriage release lever and shake the lug 19 contact, thereby produce the vibrations that transmit to laminating piece 13, shake the sand and dust that blocks down on the filter dirt net 18, reach the effect of automatic clearing up filter dirt net 18, set up for buckling in succession through carriage release lever 15 simultaneously, make and increase the required time of carriage release lever 16 downstream in carriage release lever 15, thereby improve the duration that produces vibrations, further improve the clearance effect of filter dirt net 18.
Claims (10)
1. The utility model provides a cubical switchboard heat abstractor for cold area transformer substation, includes device main part (1), its characterized in that: the device is characterized in that a heating plate (2) is fixedly mounted at the inner lower end of the device body (1), an attaching block (13) is movably mounted inside the inner wall of the lower end of the device body (1), a movable plate (8) is movably mounted outside the lower end of the device body (1), and an air inlet groove (9) is formed inside the movable plate (8).
2. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 1, characterized in that: intake duct (7) have been seted up to the inside lower extreme of device main part (1), the inside bottom fixed mounting of device main part (1) has fan (3), hot plate (2) lower extreme is for falling the V form setting, the inside fixed mounting of hot plate (2) lower extreme has electric heat line (5).
3. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 1, characterized in that: the heating plate is characterized in that a first water guide plate (10) which is continuously arranged at intervals is fixedly arranged on the inner side of the lower end of the heating plate (2), the lower end of the first water guide plate (10) is perpendicular to the inner side inclined plane of the heating plate (2), and the upper end of the first water guide plate is arc-shaped.
4. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 1, characterized in that: the inner side of the lower end of the heating plate (2) is fixedly provided with a second water guide plate (11) relative to the upper end of the first water guide plate (10), and the second water guide plate (11) and the first water guide plate (10) are of the same structure and are arranged correspondingly to the interval of the first water guide plate (10).
5. The heat dissipation device of the switch cabinet for the transformer substation in the cold region according to any one of claims 3 or 4, wherein: the water guide grooves (20) are formed in the first water guide plate (10) and the second water guide plate (11), and the upper ends of the water guide grooves (20) are arranged in an inclined arc shape with two sides expanded.
6. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 1, characterized in that: gas outlet (6) have been seted up to hot plate (2) middle-end inside, hot plate (2) upper end is the setting of V form, device main part (1) inside both sides fixed mounting has air guide block (12), air guide block (12) are the right angled triangle setting of inclined plane arc indent, air guide block (12) are by supreme grow setting gradually down in device main part (1) inboard both sides volume.
7. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 6, wherein: an air inlet groove (9) is formed in the moving plate (8), a dust filtering net (18) is fixedly mounted in the air inlet groove (9), and the air inlet groove (9) and the air inlet channel (7) are arranged correspondingly.
8. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 7, wherein: the two sides of the movable plate (8) are embedded in a sliding groove at the lower end of the device main body (1), and an elliptic driving block (21) is fixedly installed on the left side of the phase-shifting movable plate (8) at the lower end of the device main body (1).
9. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 1, characterized in that: laminating piece (13) set up the interval department at intake duct (7), connecting rod (14) have been cup jointed to laminating piece (13) upper end inside, connecting rod (14) upper end swing joint has turning block (17), turning block (17) both sides fixed mounting has carriage release lever (16), device main part (1) lower extreme inside relative turning block (17) both sides offer with carriage release lever (16) gomphosis shift chute (15), shift chute (15) inboard fixed mounting has vibrations lug (19) that the obtuse angle shape set up.
10. The heat dissipation device of the switch cabinet for the transformer substation in the cold area according to claim 9, characterized in that: the moving groove (15) is continuously bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334375.7A CN111404062A (en) | 2020-04-24 | 2020-04-24 | Switch cabinet heat dissipation device for transformer substation in cold area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334375.7A CN111404062A (en) | 2020-04-24 | 2020-04-24 | Switch cabinet heat dissipation device for transformer substation in cold area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111404062A true CN111404062A (en) | 2020-07-10 |
Family
ID=71437153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010334375.7A Withdrawn CN111404062A (en) | 2020-04-24 | 2020-04-24 | Switch cabinet heat dissipation device for transformer substation in cold area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111404062A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186544A (en) * | 2020-10-19 | 2021-01-05 | 江西领创机电科技有限公司 | Heat dissipation switch board |
| CN113436832A (en) * | 2021-05-27 | 2021-09-24 | 张海琴 | Dampproofing transformer |
-
2020
- 2020-04-24 CN CN202010334375.7A patent/CN111404062A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186544A (en) * | 2020-10-19 | 2021-01-05 | 江西领创机电科技有限公司 | Heat dissipation switch board |
| CN113436832A (en) * | 2021-05-27 | 2021-09-24 | 张海琴 | Dampproofing transformer |
| CN113436832B (en) * | 2021-05-27 | 2022-05-31 | 青州市长城电力变压器股份有限公司 | Dampproofing transformer |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200710 |
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| WW01 | Invention patent application withdrawn after publication |