CN113113219A - Copper-iron alloy cooling mechanism - Google Patents
Copper-iron alloy cooling mechanism Download PDFInfo
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- CN113113219A CN113113219A CN202110249807.9A CN202110249807A CN113113219A CN 113113219 A CN113113219 A CN 113113219A CN 202110249807 A CN202110249807 A CN 202110249807A CN 113113219 A CN113113219 A CN 113113219A
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- Prior art keywords
- copper
- iron alloy
- cooling mechanism
- mechanism according
- moving plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a copper-iron alloy cooling mechanism which comprises a transformer body, wherein a copper-iron alloy radiating tube is fixedly arranged in the transformer body, the copper-iron alloy radiating tube is spiral, one end of the copper-iron alloy radiating tube is communicated with a water inlet tube, the other end of the copper-iron alloy radiating tube is communicated with a water outlet tube, a radiating box is fixedly arranged on one side of the transformer body, and a mounting groove is formed in the radiating box. According to the invention, the circulating pump is started to drive the cooling liquid to circularly flow in the water inlet pipe, the copper-iron alloy radiating pipe, the water outlet pipe and the copper-iron alloy radiating plate, when the cooling liquid flows into the copper-iron alloy radiating pipe, the cooling liquid absorbs the heat in the transformer body in the copper-iron alloy radiating pipe, and when the cooling liquid flows out of the copper-iron alloy radiating pipe, the cooling liquid radiates the absorbed heat.
Description
Technical Field
The invention relates to the technical field of cooling mechanisms, in particular to a copper-iron alloy cooling mechanism.
Background
The transformer is a static electrical equipment for transforming alternating voltage and current to transmit alternating current energy, realizes electric energy transmission according to the electromagnetic induction principle, can be divided into a power transformer, a test transformer, an instrument transformer and a special-purpose transformer according to the purpose, and contains a plurality of electrical components inside the transformer.
The transformer is normal during operation, and the inside electrical components of transformer can produce a large amount of heats, and current transformer mostly distributes away the heat through transformer housing and air contact, however, this kind of radiating mode can not in time distribute away the heat, and the heat dissipation is slow, and the radiating efficiency is low, and a time is long, leads to the transformer temperature higher, reduces the life of transformer.
Disclosure of Invention
In order to solve the technical problems mentioned in the background art, a copper-iron alloy cooling mechanism is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a copper-iron alloy cooling mechanism comprises a transformer body, wherein a copper-iron alloy radiating tube is fixedly installed in the transformer body and is spiral, one end of the copper-iron alloy radiating tube is communicated with a water inlet tube, and the other end of the copper-iron alloy radiating tube is communicated with a water outlet tube;
a heat dissipation box is fixedly mounted on one side of the transformer body, a mounting groove is formed in the heat dissipation box, a copper-iron alloy heat dissipation plate is fixedly mounted in the mounting groove, the free end of the water inlet pipe is communicated with one end of the copper-iron alloy heat dissipation plate, the free end of the water outlet pipe is communicated with the other end of the copper-iron alloy heat dissipation plate, the water inlet pipe and the transformer body are mounted in a sealing mode, and the water outlet pipe and the transformer body are mounted in a sealing mode;
the copper-iron alloy radiating pipe, the water inlet pipe, the water outlet pipe and the copper-iron alloy radiating plate are internally filled with cooling liquid, the water inlet pipe is provided with a circulating pump, and the circulating pump drives the cooling liquid to circularly flow in the copper-iron alloy radiating pipe, the water inlet pipe, the water outlet pipe and the copper-iron alloy radiating plate;
fixed mounting has first fixed block and second fixed block in the mounting groove, sliding connection has first motion board in the first fixed block, fixed mounting has a plurality of installation pieces on the first motion board, sliding connection has the second motion board in the second fixed block, fixed mounting has a plurality of installation pieces on the second motion board, fixed mounting has a plurality of radiator fan on the installation piece, be equipped with the actuating mechanism of the motion of first motion board of drive and second motion board in the mounting groove.
As a further description of the above technical solution:
the driving mechanism comprises a driving motor, a central shaft is rotatably mounted in the mounting groove, a first rotating block is fixedly mounted at the top of the central shaft, a first fixing rod is fixedly mounted at the top of the first rotating block, a second rotating block is fixedly mounted at the top of the first fixing rod, the first rotating block and the second rotating block are arranged in parallel, a second fixing rod is fixedly connected at the top of the second rotating block, the driving motor is fixedly mounted in the mounting groove, an output shaft of the driving motor is in transmission connection with the central shaft, one end of the second moving plate is fixedly connected with a second fixing column, a second connecting rod is rotatably mounted on the second fixing column, a free end of the second connecting rod is rotatably mounted with the second fixing rod, one end of the first moving plate is fixedly connected with a first fixing column, and a first connecting rod is rotatably mounted on the first fixing column, the free end of the first connecting rod is rotatably mounted with the first fixing rod.
As a further description of the above technical solution:
the first fixing column is welded on the first moving plate.
As a further description of the above technical solution:
the plurality of heat dissipation fans are arranged on the mounting block at equal intervals.
As a further description of the above technical solution:
and a plurality of aluminum fins are fixedly arranged on the outer side of the copper-iron alloy heat dissipation plate.
As a further description of the above technical solution:
the aluminum fins are arranged on the copper-iron alloy heat dissipation plate at equal intervals.
As a further description of the above technical solution:
the first fixing block is internally provided with a first sliding groove, the first moving plate slides in the first sliding groove, the first fixing block is internally provided with a first square groove communicated with the first sliding groove, and the first square groove is internally and rotatably provided with a plurality of rotating balls in rolling contact with the first moving plate.
As a further description of the above technical solution:
the rotating balls are arranged in the first square groove at equal intervals.
As a further description of the above technical solution:
a second sliding groove is formed in the second fixing block, the second moving plate slides in the second sliding groove, a second square groove communicated with the second sliding groove is formed in the second fixing block, and a plurality of rotating balls in rolling contact with the second moving plate are rotatably mounted in the second square groove.
As a further description of the above technical solution:
and the plurality of rotating balls are arranged in the second square groove at equal intervals.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the circulating pump is started to drive the cooling liquid to circularly flow in the water inlet pipe, the copper-iron alloy radiating pipe, the water outlet pipe and the copper-iron alloy radiating plate, when the cooling liquid flows into the copper-iron alloy radiating pipe, the cooling liquid absorbs the heat in the transformer body in the copper-iron alloy radiating pipe, and when the cooling liquid flows out of the copper-iron alloy radiating pipe, the cooling liquid radiates the absorbed heat.
2. In the invention, the driving motor is started to rotate to drive the first rotating block and the second rotating block to rotate, the first connecting rod drives the first moving plate to do reciprocating motion, the second connecting rod drives the second moving plate to do reciprocating motion, and then the cooling fan is driven to move in the mounting groove, so that the cooling fan accelerates the dissipation of heat on the copper-iron alloy cooling plate, and the cooling effect of the whole device is enhanced.
3. According to the invention, the plurality of aluminum fins are fixedly installed on the outer side of the copper-iron alloy heat dissipation plate and are arranged on the copper-iron alloy heat dissipation plate at equal intervals, and the aluminum fins accelerate the heat dissipation on the copper-iron alloy heat dissipation plate and enhance the heat dissipation effect of the whole device.
Drawings
FIG. 1 is a first angle schematic diagram of a driving mechanism of a copper-iron alloy cooling mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional front view illustrating a copper-iron alloy cooling mechanism according to an embodiment of the present invention;
FIG. 3 is a second angle schematic view of a driving mechanism of a copper-iron alloy cooling mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view illustrating a first fixing block of a copper-iron alloy cooling mechanism according to an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view illustrating a second fixed block of a copper-iron alloy cooling mechanism according to an embodiment of the invention;
fig. 6 is a schematic partial part diagram of a copper-iron alloy cooling mechanism according to an embodiment of the present invention.
Illustration of the drawings:
1. a transformer body; 2. a copper-iron alloy radiating pipe; 3. a water inlet pipe; 4. a water outlet pipe; 5. a copper-iron alloy heat dissipation plate; 6. a heat dissipation box; 601. mounting grooves; 7. an aluminum fin; 8. a drive motor; 9. a central shaft; 10. a first rotating block; 11. a first fixing lever; 12. a second turning block; 13. a second fixing bar; 14. a first link; 15. a second link; 16. a first fixed block; 1601. a first sliding groove; 1602. a first square groove; 17. a second fixed block; 1701. a second sliding groove; 1702. a second square groove; 18. a first motion plate; 19. a second motion plate; 20. mounting blocks; 21. a heat radiation fan; 22. a circulation pump; 23. a second fixed column; 24. a first fixed column; 25. the ball is rotated.
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.
Examples
Referring to fig. 1-6, the present invention provides a technical solution: a copper-iron alloy cooling mechanism comprises a transformer body 1, wherein a copper-iron alloy radiating tube 2 is fixedly installed in the transformer body 1, the copper-iron alloy radiating tube 2 is spiral, one end of the copper-iron alloy radiating tube 2 is communicated with a water inlet tube 3, and the other end of the copper-iron alloy radiating tube 2 is communicated with a water outlet tube 4; a heat dissipation box 6 is fixedly installed on one side of the transformer body 1, an installation groove 601 is formed in the heat dissipation box 6, a copper-iron alloy heat dissipation plate 5 is fixedly installed in the installation groove 601, the free end of a water inlet pipe 3 is communicated with one end of the copper-iron alloy heat dissipation plate 5, the free end of a water outlet pipe 4 is communicated with the other end of the copper-iron alloy heat dissipation plate 5, the water inlet pipe 3 is hermetically installed with the transformer body 1, and the water outlet pipe 4 is hermetically installed with the transformer body 1; the copper-iron alloy radiating pipe 2, the water inlet pipe 3, the water outlet pipe 4 and the copper-iron alloy radiating plate 5 are filled with cooling liquid, the water inlet pipe 3 is provided with a circulating pump 22, and the circulating pump 22 drives the cooling liquid to circularly flow in the copper-iron alloy radiating pipe 2, the water inlet pipe 3, the water outlet pipe 4 and the copper-iron alloy radiating plate 5; a first fixed block 16 and a second fixed block 17 are fixedly arranged in the mounting groove 601, a first moving plate 18 is connected in the first fixed block 16 in a sliding manner, a plurality of mounting blocks 20 are fixedly arranged on the first moving plate 18, a second moving plate 19 is connected in the second fixed block 17 in a sliding manner, a plurality of mounting blocks 20 are fixedly arranged on the second moving plate 19, a plurality of cooling fans 21 are fixedly arranged on the mounting blocks 20, a driving mechanism for driving the first moving plate 18 and the second moving plate 19 to move is arranged in the mounting groove 601, the driving mechanism comprises a driving motor 8, a central shaft 9 is rotatably arranged in the mounting groove 601, a first rotating block 10 is fixedly arranged at the top of the central shaft 9, a first fixed rod 11 is fixedly arranged at the top of the first rotating block 10, a second rotating block 12 is fixedly arranged at the top of the first fixed rod 11, the first rotating block 10 is arranged in parallel to the second rotating block 12, a second fixed rod 13 is fixedly connected, a driving motor 8 is fixedly installed in the installation groove 601, an output shaft of the driving motor 8 is in transmission connection with the central shaft 9, one end of a second moving plate 19 is fixedly connected with a second fixing column 23, a second connecting rod 15 is installed on the second fixing column 23 in a rotating manner, the free end of the second connecting rod 15 is installed on a second fixing rod 13 in a rotating manner, one end of a first moving plate 18 is fixedly connected with a first fixing column 24, a first connecting rod 14 is installed on the first fixing column 24 in a rotating manner, the free end of the first connecting rod 14 is installed on a first fixing rod 11 in a rotating manner, the first fixing column 24 is welded on the first moving plate 18, a plurality of radiating fans 21 are arranged on the installation block 20 at equal intervals, a plurality of aluminum fins 7 are fixedly installed on the outer side of the copper-iron alloy radiating plate 5, the plurality of aluminum fins 7 are arranged on the copper-iron alloy radiating plate 5 at equal intervals, the aluminum fins 7 accelerate the heat dissipation, a first sliding groove 1601 is arranged in the first fixed block 16, the first moving plate 18 slides in the first sliding groove 1601, a first square groove 1602 communicated with the first sliding groove 1601 is arranged in the first fixed block 16, a plurality of rotating balls 25 in rolling contact with the first moving plate 18 are rotatably mounted in the first square groove 1602, the plurality of rotating balls 25 are arranged in the first square groove 1602 at equal intervals, a second sliding groove 1701 is arranged in the second fixed block 17, the second moving plate 19 slides in the second sliding groove 1701, a second square groove 1702 communicated with the second sliding groove 1701 is arranged in the second fixed block 17, a plurality of rotating balls 25 in rolling contact with the second moving plate 19 are rotatably mounted in the second square groove 1702, the plurality of rotating balls 25 are arranged in the second square groove at equal intervals, a heat dissipation plate 1702 22 is started to drive cooling liquid to circularly flow in the water inlet pipe 3, the copper-iron alloy heat dissipation pipe 2, the water outlet pipe 4 and the copper-iron alloy 5, when the coolant liquid flows into copper iron alloy cooling tube 2, the coolant liquid absorbs the inside heat of transformer body 1 in copper iron alloy cooling tube 2, when the coolant liquid flows out copper iron alloy cooling tube 2, the coolant liquid gives off the absorbed heat, so circulate, traditional radiating mode compares, the quick radiating efficiency of heat dissipation is high, the life of transformer is improved, start driving motor 8 rotates, drive first turning block 10 and second turning block 12 and rotate, make reciprocating motion through first connecting rod 14 drive first motion board 18, make reciprocating motion through second connecting rod 15 drive second motion board 19, and then drive radiator fan 21 is at the mounting groove 601 internal motion, radiator fan 21 accelerates the giving off of heat on copper iron alloy cooling plate 5, strengthen the radiating effect of whole device.
The working principle is as follows: during the use, at first, start circulating pump 22, it is at inlet tube 3 to drive the coolant liquid, copper-iron alloy cooling tube 2, outlet pipe 4 and the inside circulation of copper-iron alloy cooling tube 5 flow, when the coolant liquid flows into copper-iron alloy cooling tube 2, the coolant liquid absorbs the inside heat of transformer body 1 in copper-iron alloy cooling tube 2, when the coolant liquid flows out copper-iron alloy cooling tube 2, the coolant liquid gives off absorptive heat, so circulate, traditional radiating mode compares, the quick radiating efficiency of heat dissipation is high, the life of transformer is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A copper-iron alloy cooling mechanism comprises a transformer body (1), and is characterized in that a copper-iron alloy radiating tube (2) is fixedly installed in the transformer body (1), the copper-iron alloy radiating tube (2) is spiral, one end of the copper-iron alloy radiating tube (2) is communicated with a water inlet tube (3), and the other end of the copper-iron alloy radiating tube (2) is communicated with a water outlet tube (4);
a heat dissipation box (6) is fixedly mounted on one side of the transformer body (1), a mounting groove (601) is formed in the heat dissipation box (6), a copper-iron alloy heat dissipation plate (5) is fixedly mounted in the mounting groove (601), the free end of the water inlet pipe (3) is communicated with one end of the copper-iron alloy heat dissipation plate (5), the free end of the water outlet pipe (4) is communicated with the other end of the copper-iron alloy heat dissipation plate (5), the water inlet pipe (3) and the transformer body (1) are mounted in a sealing mode, and the water outlet pipe (4) and the transformer body (1) are mounted in a sealing mode;
the cooling liquid is contained in the copper-iron alloy radiating pipe (2), the water inlet pipe (3), the water outlet pipe (4) and the copper-iron alloy radiating plate (5), the circulating pump (22) is installed on the water inlet pipe (3), and the circulating pump (22) drives the cooling liquid to circularly flow in the copper-iron alloy radiating pipe (2), the water inlet pipe (3), the water outlet pipe (4) and the copper-iron alloy radiating plate (5);
fixed mounting has first fixed block (16) and second fixed block (17) in mounting groove (601), sliding connection has first motion board (18) in first fixed block (16), fixed mounting has a plurality of installation pieces (20) on first motion board (18), sliding connection has second motion board (19) in second fixed block (17), fixed mounting has a plurality of installation pieces (20) on second motion board (19), fixed mounting has a plurality of radiator fan (21) on installation piece (20), be equipped with the actuating mechanism of the motion of first motion board (18) of drive and second motion board (19) in mounting groove (601).
2. The copper-iron alloy cooling mechanism according to claim 1, wherein the driving mechanism comprises a driving motor (8), a central shaft (9) is rotatably mounted in the mounting groove (601), a first rotating block (10) is fixedly mounted at the top of the central shaft (9), a first fixing rod (11) is fixedly mounted at the top of the first rotating block (10), a second rotating block (12) is fixedly mounted at the top of the first fixing rod (11), the first rotating block (10) and the second rotating block (12) are arranged in parallel, a second fixing rod (13) is fixedly connected at the top of the second rotating block (12), the driving motor (8) is fixedly mounted in the mounting groove (601), an output shaft of the driving motor (8) is in transmission connection with the central shaft (9), and a second fixing column (23) is fixedly connected at one end of the second moving plate (19), the second connecting rod (15) is rotatably mounted on the second fixing column (23), the free end of the second connecting rod (15) is rotatably mounted with the second fixing rod (13), a first fixing column (24) is fixedly connected to one end of the first moving plate (18), a first connecting rod (14) is rotatably mounted on the first fixing column (24), and the free end of the first connecting rod (14) is rotatably mounted with the first fixing rod (11).
3. A cu-fe alloy cooling mechanism according to claim 2, characterised in that the first fixed post (24) is welded to the first moving plate (18).
4. A cu-fe alloy cooling mechanism according to claim 3, wherein a plurality of said heat dissipating fans (21) are provided at equal intervals on the mounting block (20).
5. A copper-iron alloy cooling mechanism according to claim 4, characterized in that a plurality of aluminum fins (7) are fixedly arranged on the outer side of the copper-iron alloy cooling plate (5).
6. A ferrocopper cooling mechanism according to claim 5, wherein a plurality of the aluminum fins (7) are provided at equal intervals on the ferrocopper heat sink (5).
7. A copper-iron alloy cooling mechanism according to claim 6, characterized in that a first sliding groove (1601) is formed in the first fixed block (16), the first moving plate (18) slides in the first sliding groove (1601), a first square groove (1602) communicated with the first sliding groove (1601) is formed in the first fixed block (16), and a plurality of rotating balls (25) in rolling contact with the first moving plate (18) are rotatably mounted in the first square groove (1602).
8. A copper-iron alloy cooling mechanism according to claim 7, characterized in that a plurality of said rotating balls (25) are arranged at equal intervals in the first square groove (1602).
9. A cu-fe alloy cooling mechanism according to claim 8, wherein the second fixed block (17) has a second sliding slot (1701) formed therein, the second moving plate (19) slides in the second sliding slot (1701), the second fixed block (17) has a second square slot (1702) formed therein and communicating with the second sliding slot (1701), and the second square slot (1702) has a plurality of rotating balls (25) rotatably mounted therein and in rolling contact with the second moving plate (19).
10. A cu-fe alloy cooling mechanism according to claim 9, characterised in that a plurality of said rotating balls (25) are equally spaced in the second square groove (1702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249807.9A CN113113219A (en) | 2021-03-08 | 2021-03-08 | Copper-iron alloy cooling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249807.9A CN113113219A (en) | 2021-03-08 | 2021-03-08 | Copper-iron alloy cooling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113113219A true CN113113219A (en) | 2021-07-13 |
Family
ID=76710821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249807.9A Withdrawn CN113113219A (en) | 2021-03-08 | 2021-03-08 | Copper-iron alloy cooling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113113219A (en) |
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| US4933531A (en) * | 1988-07-22 | 1990-06-12 | Toyota Jidosha Kabushiki Kaisha | Pantograph type robot arm |
| US20070148016A1 (en) * | 2005-12-22 | 2007-06-28 | Newport Medical Instruments, Inc. | Reciprocating drive apparatus and method |
| CN106872741A (en) * | 2017-02-08 | 2017-06-20 | 深圳市安思科电子科技有限公司 | A kind of intelligent electric power instrument for being easily installed dismounting |
| CN206497804U (en) * | 2016-12-28 | 2017-09-15 | 周红军 | A kind of power distribution heat radiating type transformer |
| CN108990371A (en) * | 2018-07-04 | 2018-12-11 | 承强 | A kind of new-energy automobile cabinet cooling device |
| CN208466589U (en) * | 2018-05-31 | 2019-02-05 | 杭州佐客信息技术有限公司 | No iron plate communicates adsorption locating device |
| CN208540362U (en) * | 2018-07-27 | 2019-02-22 | 江苏盐湖电子科技有限公司 | A kind of circuit board with water-cooled radiating structure |
| CN110602903A (en) * | 2019-09-16 | 2019-12-20 | 武汉完美网络服务有限公司 | Interaction device for PC end background control |
| CN212050183U (en) * | 2020-04-24 | 2020-12-01 | 傅柳芳 | Hoisting structure in production process of natural gas conveying pipeline |
| CN112218489A (en) * | 2020-09-28 | 2021-01-12 | 深圳市千里智能控制科技有限公司 | Embedded motion controller |
-
2021
- 2021-03-08 CN CN202110249807.9A patent/CN113113219A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933531A (en) * | 1988-07-22 | 1990-06-12 | Toyota Jidosha Kabushiki Kaisha | Pantograph type robot arm |
| US20070148016A1 (en) * | 2005-12-22 | 2007-06-28 | Newport Medical Instruments, Inc. | Reciprocating drive apparatus and method |
| CN206497804U (en) * | 2016-12-28 | 2017-09-15 | 周红军 | A kind of power distribution heat radiating type transformer |
| CN106872741A (en) * | 2017-02-08 | 2017-06-20 | 深圳市安思科电子科技有限公司 | A kind of intelligent electric power instrument for being easily installed dismounting |
| CN208466589U (en) * | 2018-05-31 | 2019-02-05 | 杭州佐客信息技术有限公司 | No iron plate communicates adsorption locating device |
| CN108990371A (en) * | 2018-07-04 | 2018-12-11 | 承强 | A kind of new-energy automobile cabinet cooling device |
| CN208540362U (en) * | 2018-07-27 | 2019-02-22 | 江苏盐湖电子科技有限公司 | A kind of circuit board with water-cooled radiating structure |
| CN110602903A (en) * | 2019-09-16 | 2019-12-20 | 武汉完美网络服务有限公司 | Interaction device for PC end background control |
| CN212050183U (en) * | 2020-04-24 | 2020-12-01 | 傅柳芳 | Hoisting structure in production process of natural gas conveying pipeline |
| CN112218489A (en) * | 2020-09-28 | 2021-01-12 | 深圳市千里智能控制科技有限公司 | Embedded motion controller |
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Application publication date: 20210713 |