CN210468539U - Indoor ventilation system of transformer substation - Google Patents
Indoor ventilation system of transformer substation Download PDFInfo
- Publication number
- CN210468539U CN210468539U CN201921376437.XU CN201921376437U CN210468539U CN 210468539 U CN210468539 U CN 210468539U CN 201921376437 U CN201921376437 U CN 201921376437U CN 210468539 U CN210468539 U CN 210468539U
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- transformer substation
- air
- chamber
- substation
- exhaust
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- 238000009423 ventilation Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000428 dust Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 206010010904 Convulsion Diseases 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of heat dissipation of transformer substations, and discloses an indoor ventilation system of a transformer substation, which comprises an air inlet device and an air exhaust device, wherein the air inlet device comprises a first air inlet arranged at two sides of a transformer substation room, a first louver blade arranged at the outer side of the first air inlet, a second air inlet arranged on a door plate of the transformer substation room, and a second louver blade arranged at the outer side of the second air inlet; mounting openings are formed in the left side surface and the right side surface of the transformer substation chamber and close to the top of the transformer substation chamber; the air exhaust device comprises a fan arranged in the mounting port, an exhaust hood arranged in the transformer substation room, and an exhaust pipe communicated with the exhaust hood and the mounting port; the exhaust hood is fixed on the inner wall of the transformer substation chamber through a mounting frame; the lower end surface of the exhaust hood is provided with an exhaust outlet which is over against the upper part of the electrical element; a grille is arranged at the air outlet; a base is arranged at the bottom of the transformer substation chamber; the lower end surface of the base is provided with radiating fins at intervals. The utility model has the advantages of it is following and effect: the ventilation and heat dissipation efficiency of the transformer substation indoor is high.
Description
Technical Field
The utility model relates to a heat dissipation technical field of transformer substation, in particular to indoor ventilation system of transformer substation.
Background
With the increase of the electrical load density of the city center, the transformer substation is forced to enter the city center. In order to solve the problems of noise and high difficulty in urban land acquisition, the urban transformer substation is basically arranged indoors at present. After a high-voltage and large-capacity power transformer is placed indoors, one of the keys to achieve rated output power is heat dissipation and ventilation of the indoor transformer. In order to ensure normal operation, a large amount of heat generated by the operation of the transformer needs to be discharged outdoors through natural ventilation or mechanical ventilation. Meanwhile, the fan noise becomes a main source of the transformer substation noise due to the large air volume. How to control the noise of the transformer substation through a reasonable ventilation design is a problem to be solved urgently.
At present, the chinese utility model patent with publication number CN207409890U discloses a ventilation and heat dissipation device for transformer substation, which comprises a transformer substation chamber, wherein the lower part of the side wall of the transformer substation chamber is provided with an air inlet, and the top of the transformer substation chamber is provided with an air outlet. The transformer substation air distribution box is characterized in that an air distribution box is arranged at the bottom of the transformer substation chamber, and through holes are uniformly distributed on the upper box surface of the air distribution box. An air inlet machine is arranged on the air inlet, the inlet of the air inlet machine faces the air inlet, and the outlet of the air inlet machine is communicated with the air equalizing box through a pipeline.
The technical scheme has a certain heat dissipation effect, but has the following defects: the electric appliance elements in the transformer substation room are arranged on the air box and are blown into the air box, so that cold air is in contact with the transformer through the through hole formed in the air box, and when the cold air is blown to the bottom of the transformer through the through hole, the air absorbing the heat of the transformer can only be dissipated from a small gap or the through hole due to the blockage of the transformer above, and the heat dissipation efficiency of the ventilation system on the transformer is low, and the heat cannot be rapidly discharged in time.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing an indoor ventilation system of transformer substation, it is efficient to the indoor ventilation cooling of transformer substation.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an indoor ventilation system of a transformer substation comprises an air inlet device and an air exhaust device which are arranged on a transformer substation room, wherein the air inlet device comprises first air inlets, first louvers, second louvers and second louvers, the first air inlets are formed in the left side and the right side of the transformer substation room and are close to the bottom of the transformer substation room, the first louvers are arranged on the outer sides of the first air inlets, the second air inlets are formed in a door plate of the transformer substation room and are close to the bottom of the door plate, and the second louvers are arranged on the outer sides of; mounting openings are formed in the left side surface and the right side surface of the transformer substation chamber and in positions close to the top of the transformer substation chamber; the exhaust device comprises a fan arranged in the mounting port, an exhaust hood arranged in the transformer substation chamber and close to the upper part of the transformer substation chamber, and an exhaust pipe communicated with one side of the exhaust hood and the mounting port; the lower end surface of the exhaust hood is provided with an exhaust outlet which is over against the electrical element; a grille is arranged at the air outlet; a base is arranged at the bottom of the transformer substation chamber; and the lower end surface of the base is provided with radiating fins at intervals.
Through adopting above-mentioned technical scheme, the fan through exhaust device discharges the indoor hot-air of transformer substation to make the outdoor outside cold air of transformer substation can follow the first air intake that sets up in transformer substation room both sides and get into, the air flow takes away the indoor heat of transformer substation, thereby makes the indoor temperature of transformer substation descend. Through setting up the exhaust hood for the air exit is just to the electrical components of transformer substation indoor installation, and the area of increase fan convulsions improves the speed that the air flows, thereby accelerates the air flow of each position department in the transformer substation room, makes holistic radiating effect better. The base is arranged at the bottom of the substation chamber, the base can be in direct contact with an electrical element in the substation chamber to take away a part of heat generated by the electrical element, hot air on the upper portion of the chamber is directly discharged by the fan, so that cold air located outdoors enters from an air inlet formed in the bottom of the chamber, the cold air can take away the heat on the radiating fins, the indoor ventilation effect is better, and the radiating effect is accelerated. In addition, the base is arranged, so that the bottom of the electrical appliance element can be prevented from being wet.
The utility model is further arranged that the upper end surface of the base is provided with a mounting groove which is matched with the electrical element in the transformer substation chamber; and the groove wall and the groove bottom of the mounting groove are both provided with heat-conducting plates.
Through adopting above-mentioned technical scheme, set up the base of seting up the mounting groove for electrical components's installation is more stable. Through set up the heat-conducting plate in the mounting groove, can conduct the base below through the heat-conducting plate with some heat that produces on the electrical components effectively to dispel the heat through heat radiation fins. When the airflow circulation heat dissipation is carried out in the substation room, the heat can be taken away quickly and effectively, so that the heat dissipation effect is better.
The utility model discloses further set up to, dustproof subassembly is installed to the outdoor side of transformer substation and the position that corresponds the installing port.
Through adopting above-mentioned technical scheme, set up dustproof subassembly and can effectively prevent that dust debris from getting into the transformer substation indoor to and can prevent that the rainwater from getting into the transformer substation indoor.
The utility model discloses further set up to, dustproof subassembly including locate in the installation mouth and with the terminal surface that the fan corresponds set up the panel of air exit, install on the panel and be located filter screen, the upper end of air exit department articulate on the terminal surface that the panel deviates from the fan and the cross-section is greater than the separation blade of air exit.
Through adopting above-mentioned technical scheme, at the fan during operation, the indoor hot-blast fan that passes through of transformer substation is taken out, and the air current can be blown the separation blade that the upper end articulates on the panel for the air exit is opened, and the indoor hot-blast of transformer substation can be discharged, and when fan stop work, the separation blade does not receive the indoor portion of transformer substation's wind-force because self gravity is flagging, keeps covering the air exit with the laminating of air exit, can keep off external dust outside, improves the indoor equipment operational environment's of transformer substation clean and tidy.
The utility model is further arranged in that the exhaust hood is fixed on the inner wall of the transformer substation chamber through the mounting frame; the mounting rack comprises a hook arranged on the side surface of the exhaust hood and a connecting block fixed on the inner wall of the substation chamber; the upper end surface of the connecting block is provided with a fixing groove matched with the hook; the connecting block is arranged opposite to a door plate of the substation chamber.
Through adopting above-mentioned technical scheme, during the installation, be fixed in the indoor wall of transformer substation and be close to the position at transformer substation room top with the connecting block through the bolt earlier on, only need aim at fixed slot and cartridge with the couple and go into in the fixed slot and can accomplish the installation. The hook and the connecting block are arranged to install the exhaust hood, and the installation structure is simple and convenient.
The utility model is further arranged that the top of the transformer substation room is provided with a top cover; the center of the top cover protrudes towards the direction away from the top of the transformer substation chamber; the edges of the top cover extend towards the direction away from the substation chamber.
Through adopting above-mentioned technical scheme, set up the top cap, be favorable to preventing that the dust rainwater from getting into the transformer substation indoor, prevent simultaneously that debris from piling up in the transformer substation indoor top.
The utility model is further arranged that a ventilation opening is arranged at the position of the transformer substation chamber close to the top cover; and a third louver blade is arranged at the vent.
Through adopting above-mentioned technical scheme, the hot-air that produces in the transformer substation room can rise to the top of transformer substation room gradually, sets up the vent in the position that the transformer substation room is close to the top cap, is favorable to scattering out the hot-air for the indoor hot-air of transformer substation can carry out the heat exchange with outdoor. The ventilation opening is arranged at a position close to the top cover, because the top cover is obliquely arranged and the edge of the top cover extends out of one section, the transformer substation chamber is shielded, and impurities are not easy to enter the transformer substation chamber. The third louver blades are arranged, so that the situation that impurities enter a transformer substation chamber to influence the operation of electrical elements is facilitated to be reduced.
The utility model is further arranged that the first air inlet is provided with an installation frame; hinge holes are formed in the left side and the right side of the mounting frame at intervals along the height direction of the mounting frame; both ends of the first louver blade are provided with rotating shafts which are rotatably connected in the hinge holes; the structures of the second air inlet and the vent are the same as those of the first air inlet.
Through adopting above-mentioned technical scheme, through the cooperation of pivot and hinge hole, realize the articulated of first tripe and installing frame, when the wind direction changes, first tripe can aim at the wind direction under the effect of wind power to catch the amount of wind to the maximum area ground, thereby realize the maximize of intake. No matter how the wind direction is, the first louver blade can rotate against the wind, so that the air can be supplied to the ground in the largest area, the air supply efficiency is improved, and the air discharge is accelerated.
To sum up, the utility model discloses a beneficial technological effect does:
the hot air in the transformer substation chamber is exhausted by the fan of the exhaust device, so that cold air outside the transformer substation chamber can enter from the first air inlets arranged on two sides of the transformer substation chamber, air flows, heat in the transformer substation chamber is taken away, and the temperature in the transformer substation chamber is reduced. By arranging the exhaust hood, the exhaust outlet is opposite to the electrical elements installed in the substation room, the air draft area of the fan is increased, and the air flow rate is improved, so that the air flow at each position in the substation room is accelerated, and the integral heat dissipation effect is better;
when the fan stops working, the baffle sheet does not receive wind force in the transformer substation room and sags due to self gravity, the baffle sheet keeps fit with the air outlet to cover the air outlet, external dust can be blocked outside, and the cleanness of the running environment of equipment in the transformer substation room is improved;
through the cooperation of pivot and hinge hole, realize the articulated of first tripe with the installing frame, when the wind direction changes, first tripe can aim at the wind direction under the effect of wind power to catch the amount of wind to the maximum area ground, thereby realize the maximize of intake. No matter how the wind direction is, the first louver blade can rotate against the wind, so that the air can be supplied to the ground in the largest area, the air supply efficiency is improved, and the air discharge is accelerated.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a schematic view of the internal structure of the embodiment;
FIG. 3 is an enlarged schematic view of A of FIG. 1;
FIG. 4 is a schematic view of a mount port configuration of an embodiment;
FIG. 5 is a schematic view of a hood mounting structure according to an embodiment;
fig. 6 is a schematic structural view of the mounting bracket.
Reference numerals: 1. a substation room; 11. an installation port; 12. a base; 121. mounting grooves; 122. a heat conducting plate; 13. heat dissipation fins; 14. a vent; 141. a third louver; 2. an air intake device; 21. a first air inlet; 211. a first louver; 22. a second air inlet; 221. a second louver; 23. installing a frame; 231. a hinge hole; 232. a rotating shaft; 3. an air exhaust device; 31. a fan; 32. an exhaust hood; 33. an air outlet; 34. a grid; 35. an exhaust duct; 4. a mounting frame; 41. hooking; 42. connecting blocks; 421. fixing grooves; 5. a dust-proof assembly; 51. a panel; 52. filtering with a screen; 53. a baffle plate; 54. a tuyere; 6. and a top cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an indoor ventilation system of a transformer substation includes an air intake device 2 and an air exhaust device 3 installed in a transformer substation room 1. Top cover 6 is installed at the top of transformer substation room 1, and the center of top cover 6 is protruding to the direction that is kept away from transformer substation room 1 top, and the border of top cover 6 all extends to the direction that is kept away from transformer substation room 1. A ventilation opening 14 is formed in the position, close to the top cover 6, of the substation chamber 1, and a third louver 141 is installed at the ventilation opening 14. Referring to fig. 2, a base 12 is installed at the bottom of the substation chamber 1, and a plurality of heat dissipation fins 13 arranged in parallel are welded to the lower end surface of the base 12 at intervals. The upper end surface of the base 12 is provided with a mounting groove 121 matched with an electrical element in the substation chamber 1, and heat conducting plates 122 are bonded on the groove wall and the groove bottom of the mounting groove 121.
As shown in fig. 1, the air intake device 2 includes a first air intake 21 opened on the left and right sides of the substation chamber 1 and located near the bottom of the substation chamber 1, a first louver 211 installed outside the first air intake 21, a second air intake 22 opened on the door panel of the substation chamber 1 and located near the bottom of the door panel, and a second louver 221 installed outside the second air intake 22. Referring to fig. 3, the first air inlet 21 is provided with a mounting frame 23, the left and right sides of the mounting frame 23 are provided with hinge holes 231 at intervals along the height direction of the mounting frame 23, and both ends of the first louver 211 are welded with rotating shafts 232 rotatably connected in the hinge holes 231. The first louver 211 is disposed to be inclined from bottom to top toward the outside of the first air inlet 21. The structures of the second air inlet 22 and the air vent 14 are the same as the structure of the first air inlet 21.
As shown in fig. 4 and 5, mounting openings 11 are opened in the left and right side surfaces of the substation chamber 1 and in positions near the top of the substation chamber 1. The mounting opening 11 is located below the ventilation opening 14. The air exhaust device 3 includes a fan 31 installed in the installation opening 11, an exhaust hood 32 installed inside the substation chamber 1, and an exhaust duct 35 communicating one side of the exhaust hood 32 with the installation opening 11. The exhaust hood 32 is opened with an exhaust outlet 33 facing the upper part of the substation room 1. A grille 34 is installed at the air outlet 33.
As shown in fig. 6, the mounting frame 4 is mounted on the side of the hood 32 close to the inside of the substation chamber 1. The mounting frame 4 includes a hook 41 mounted on a side surface of the exhaust hood 32, and a connection block 42 fixed to an inner wall of the substation chamber 1. The upper end surface of the connecting block 42 is provided with a fixing groove 421 matched with the hook 41, and the connecting block 42 is arranged opposite to the door plate of the substation chamber 1.
As shown in fig. 4, the dust-proof module 5 is mounted outside the substation chamber 1 at a position corresponding to the mounting port 11. The dustproof assembly 5 includes a panel 51 disposed in the mounting opening 11 and having an end face corresponding to the fan 31 and provided with an air opening 54, a filter screen 52 (shown in fig. 2) mounted on the panel 51 and located at the air outlet 33, and a blocking piece 53 having an upper end hinged to the end face of the panel 51 deviating from the fan 31 and having a cross section larger than the air outlet 33.
When the present embodiment is used, a part of heat emitted from the electrical components in the room is conducted out through the base 12 installed below the electrical components, and is emitted from the heat dissipation fins 13. Open fan 31, make the heat of electrical components top suck away through the exhaust hood 32 of installing at indoor top, exhaust outlet 33 is just to the electrical components of installation in the transformer substation room 1, the area of increase fan 31 convulsions, improve the speed that the air flows, indoor hot air is discharged outdoor, cold air gets into from first air intake 21 and the second air intake 22 of seting up in transformer substation room 1 both sides, the air flows, take away the heat in the transformer substation room 1, thereby make the interior temperature decline of transformer substation room 1, thereby take away the heat on the base 12, thereby further dispel the heat to electrical components.
When the fan 31 is started, indoor hot air is discharged to the outdoor, so that an acting force is exerted on the blocking piece 53, the blocking piece 53 is opened, the air opening 54 is opened, indoor and outdoor communication is achieved, and when the fan 31 does not need to be started, the blocking piece 53 can be in a vertical state due to the effect of self gravity, and accordingly sundries and dust are reduced to enter the indoor space.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an indoor ventilation system of transformer substation, is including setting up hot blast blowpipe apparatus (2) and exhaust device (3) on transformer substation room (1), characterized by: the air inlet device (2) comprises first air inlets (21) which are arranged on the left side and the right side of the substation chamber (1) and are close to the bottom of the substation chamber (1), first louvers (211) which are arranged on the outer side of the first air inlets (21), second air inlets (22) which are arranged on a door plate of the substation chamber (1) and are close to the bottom of the door plate, and second louvers (221) which are arranged on the outer side of the second air inlets (22); mounting openings (11) are formed in the left side surface and the right side surface of the transformer substation chamber (1) and in positions close to the top of the transformer substation chamber (1); the exhaust device (3) comprises a fan (31) arranged in the mounting port (11), an exhaust hood (32) arranged in the transformer substation chamber (1) and close to the upper part of the transformer substation chamber (1), and an exhaust pipe (35) communicated with one side of the exhaust hood (32) and the mounting port (11); the lower end surface of the exhaust hood (32) is provided with an exhaust outlet (33) which is over against the electrical element; a grille (34) is arranged at the air outlet (33); a base (12) is arranged at the bottom of the transformer substation chamber (1); the lower end face of the base (12) is provided with radiating fins (13) at intervals.
2. An indoor ventilation system of a substation according to claim 1, wherein: the upper end surface of the base (12) is provided with a mounting groove (121) matched with an electrical element in the transformer substation chamber (1); and heat-conducting plates (122) are arranged on the groove wall and the groove bottom of the mounting groove (121).
3. An indoor ventilation system of a substation according to claim 1, wherein: and a dustproof assembly (5) is arranged on the outer side of the transformer substation chamber (1) and corresponds to the position of the mounting port (11).
4. A substation indoor ventilation system according to claim 3, wherein: dustproof subassembly (5) including locate in installing port (11) and with fan (31) the terminal surface that corresponds panel (51) of seting up air exit (33), install on panel (51) and be located filter screen (52) of air exit (33) department, upper end hinge on panel (51) deviate from on the terminal surface of fan (31) and the cross-section is greater than separation blade (53) of air exit (33).
5. An indoor ventilation system of a substation according to claim 1, wherein: the exhaust hood (32) is fixed on the inner wall of the transformer substation chamber (1) through a mounting frame (4); the mounting rack (4) comprises a hook (41) arranged on the side surface of the exhaust hood (32) and a connecting block (42) fixed on the inner wall of the transformer substation chamber (1); the upper end surface of the connecting block (42) is provided with a fixing groove (421) matched with the hook (41); the connecting block (42) is arranged opposite to a door plate of the substation chamber (1).
6. An indoor ventilation system of a substation according to claim 1, wherein: a top cover (6) is arranged at the top of the transformer substation chamber (1); the center of the top cover (6) protrudes towards the direction away from the top of the transformer substation chamber (1); the edges of the top cover (6) extend towards the direction away from the transformer substation chamber (1).
7. An indoor ventilation system of a substation according to claim 1, wherein: a ventilation opening (14) is formed in the position, close to the top cover (6), of the substation chamber (1); and a third louver blade (141) is arranged at the air vent (14).
8. An indoor ventilation system of a substation according to claim 1, wherein: the first air inlet (21) is provided with an installation frame (23); hinge holes (231) are formed in the left side and the right side of the mounting frame (23) at intervals along the height direction of the mounting frame (23); both ends of the first louver (211) are provided with rotating shafts (232) which are rotatably connected in the hinge holes (231); the structures of the second air inlet (22) and the vent (14) are the same as the structure of the first air inlet (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376437.XU CN210468539U (en) | 2019-08-23 | 2019-08-23 | Indoor ventilation system of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376437.XU CN210468539U (en) | 2019-08-23 | 2019-08-23 | Indoor ventilation system of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210468539U true CN210468539U (en) | 2020-05-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921376437.XU Expired - Fee Related CN210468539U (en) | 2019-08-23 | 2019-08-23 | Indoor ventilation system of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210468539U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555237A (en) * | 2020-05-19 | 2020-08-18 | 湖北鄂电萃宇电器有限公司 | 0.4kV pole low-voltage cable tapping box device and use method thereof |
| CN112609922A (en) * | 2020-12-23 | 2021-04-06 | 深圳供电局有限公司 | Underground substation ventilating shaft |
| CN113381304A (en) * | 2021-07-21 | 2021-09-10 | 安徽得润电气技术有限公司 | Container type transformer substation capable of automatically dehumidifying in rainy days |
| CN115464500A (en) * | 2022-08-17 | 2022-12-13 | 江西佳鼎光电科技有限公司 | Automatic core taking device for optical lens |
| CN116321966A (en) * | 2023-03-21 | 2023-06-23 | 苏州苏继电气有限公司 | A pre-charging device for suppressing current shocks for new energy vehicles |
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2019
- 2019-08-23 CN CN201921376437.XU patent/CN210468539U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555237A (en) * | 2020-05-19 | 2020-08-18 | 湖北鄂电萃宇电器有限公司 | 0.4kV pole low-voltage cable tapping box device and use method thereof |
| CN111555237B (en) * | 2020-05-19 | 2022-04-01 | 湖北鄂电萃宇电器有限公司 | 0.4kV pole low-voltage cable tapping box device and use method thereof |
| CN112609922A (en) * | 2020-12-23 | 2021-04-06 | 深圳供电局有限公司 | Underground substation ventilating shaft |
| CN113381304A (en) * | 2021-07-21 | 2021-09-10 | 安徽得润电气技术有限公司 | Container type transformer substation capable of automatically dehumidifying in rainy days |
| CN113381304B (en) * | 2021-07-21 | 2023-06-30 | 安徽得润电气技术有限公司 | Container type transformer substation capable of automatically dehumidifying in rainy days |
| CN115464500A (en) * | 2022-08-17 | 2022-12-13 | 江西佳鼎光电科技有限公司 | Automatic core taking device for optical lens |
| CN116321966A (en) * | 2023-03-21 | 2023-06-23 | 苏州苏继电气有限公司 | A pre-charging device for suppressing current shocks for new energy vehicles |
| CN116321966B (en) * | 2023-03-21 | 2025-10-14 | 苏州工业园区科佳自动化有限公司 | A pre-charging device for suppressing current shock for new energy vehicles |
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Granted publication date: 20200505 |