CN112309679A - Transformer for power transmission of transformer substation - Google Patents
Transformer for power transmission of transformer substation Download PDFInfo
- Publication number
- CN112309679A CN112309679A CN202010946969.3A CN202010946969A CN112309679A CN 112309679 A CN112309679 A CN 112309679A CN 202010946969 A CN202010946969 A CN 202010946969A CN 112309679 A CN112309679 A CN 112309679A
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- transformer
- fixedly connected
- plate
- power transmission
- clamping
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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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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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
-
- 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
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a transformer for power transmission of a transformer substation, which comprises a transformer body, wherein the bottom surface of the transformer body is fixedly connected with a positioning plate, a base is movably sleeved outside the positioning plate, a limiting groove is formed in the positioning plate, fixing plates are fixedly connected inside the limiting groove, and the number of the fixing plates is two. According to the invention, the transformer is fixed on the telegraph pole by changing the connection of the transformer and the telegraph pole into clamping connection, and the positioning plate is fixed in the base by utilizing the clamping connection effect of the clamping groove on the base and the clamping plate on the positioning plate, so that the transformer is fixed on the telegraph pole, and the transformer can be taken down from the telegraph pole for maintenance by only separating the clamping plate from the clamping groove during maintenance, thereby avoiding the problems that the transformer is fixed on the telegraph pole by bolts or welding, a great deal of energy is consumed during installation, and the transformer needs to climb to a high position for maintenance when damaged, so that the installation difficulty is.
Description
Technical Field
The invention belongs to the technical field of transformers, and particularly relates to a transformer for power transmission of a transformer substation.
Background
The transformer substation is a place for converting voltage and current in a power system, receiving electric energy and distributing the electric energy, the transformer substation in a power plant is a boosting transformer substation, the boosting transformer substation is used for boosting the electric energy generated by a generator and then feeding the electric energy into a high-voltage power grid, when the transformer substation transmits the electric energy, a transformer is required, the transformer is a device for changing alternating-current voltage by using the principle of electromagnetic induction, main components are a primary coil, a secondary coil and an iron core, and the main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, etc., and can be classified into: power transformers and special transformers.
In the process of using a transformer to transmit power in modern times, as the transformer is usually fixed on a telegraph pole by bolts or welding, the installation of the transformer needs to consume a great deal of energy of workers, and the workers need to climb to a high place to overhaul the transformer when the transformer is damaged, so that the problems of high installation difficulty and inconvenient overhaul are caused, meanwhile, when the transformer works, the internal coil element can generate a large amount of heat, if the heat is not removed in time, the internal element of the transformer is burnt out at high temperature, the use of the transformer is influenced, the service life of the device is short, and the cost is wasted, in addition, the cable is not fixed after being installed on the transformer, the stability is poor, the cable is pulled for a long time and can fall off or loosen from the transformer, the leakage accident of the transformer is caused, the problems of poor stability and low safety of the device are caused, and the transformer for power transmission of the transformer substation is provided.
Disclosure of Invention
The transformer for power transmission of the transformer substation provided by the invention has the advantages of convenience in installation and maintenance, long service life, cost saving, high stability and good safety, and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides a transformer for power transmission of transformer substation, includes the transformer body, the bottom surface fixedly connected with locating plate of transformer body, and the outside activity of locating plate has cup jointed the base, the spacing groove has been seted up to the inside of locating plate, and the inside fixedly connected with fixed plate of spacing groove, the quantity of fixed plate is two, and fixedly connected with guide rail between two fixed plates, the slider has been cup jointed in the activity on the guide rail, and the side fixedly connected with pressure spring of slider, the one end fixed connection of pressure spring is on the fixed plate, the side swing joint of slider has the gangbar, and the swing joint of gangbar has the movable plate, the side fixedly connected with cardboard of movable plate, the one end of cardboard extends to the outside of base.
Further, the right side fixedly connected with machine case of transformer body, and the top surface fixedly connected with air intake of machine case, the bottom of air intake extends to quick-witted incasement chamber and fixedly connected with and adsorbs the case, and adsorbs the bottom surface fixedly connected with joint sealing of case, the inner chamber fixedly connected with motor of joint sealing, and the fixed cover has connect the extraction fan on the output shaft of motor, the bottom surface fixedly connected with pipe of joint sealing, the one end of pipe extends to the inside of transformer body, the left side fixedly connected with air outlet of transformer body.
Further, the top surface fixedly connected with roof of transformer body, and the top surface fixedly connected with work component of roof, the top surface fixedly connected with straight-bar of roof, and the top surface fixedly connected with extension board of straight-bar, the middle part fixedly connected with spiral shell piece of extension board bottom surface, and the inside activity of spiral shell piece has cup jointed the screw rod, the one end of screw rod extends to the below and the swing joint of spiral shell piece and has the clamp plate, and the equal fixedly connected with cover piece in both sides of clamp plate, the cover piece activity cup joints the outside at the straight-bar, the bottom fixedly connected with of straight-bar accepts the board, and accepts and all seted up the wire casing on board and the clamp plate.
Furthermore, the clamping grooves matched with the clamping plates are formed in the two sides of the base, and the clamping grooves are in clamping connection with the clamping plates.
Furthermore, the pressure spring is movably sleeved outside the guide rail, and the length value of the pressure spring is equal to the distance value from the sliding block to the fixed plate.
Furthermore, the bottom of base both sides all fixedly connected with connecting plate, the quantity of connecting plate is four, and four connecting plates evenly distributed are in the four corners of base, the spiral shell has connect the bolt on the connecting plate.
Furthermore, the top surface of the air inlet is provided with sieve pores which are uniformly distributed on the top of the air inlet.
Furthermore, the screw thread that matches with the screw rod is seted up to the inside of spiral shell piece, spiral shell piece and screw rod spiral shell cup joint.
Furthermore, the shape of the wire grooves is arc-shaped, and the wire grooves are distributed on the pressing plate and the bearing plate in equal number and in one-to-one correspondence.
Has the advantages that:
1. according to the invention, the transformer is connected with the telegraph pole in a clamping mode, the positioning plate is fixed in the base by utilizing the clamping effect of the clamping groove in the base and the clamping plate in the positioning plate, so that the transformer is fixed on the telegraph pole, the clamping plate and the clamping groove are separated during maintenance, and the transformer can be taken down from the telegraph pole for maintenance, thereby avoiding the problems that the transformer needs to be fixed on the telegraph pole by bolts or welding, a great deal of energy is consumed during installation, and the transformer needs to climb to a high position for maintenance when damaged, so that the installation difficulty is large, the maintenance is inconvenient, and the maintenance is convenient while the installation difficulty of the device is.
2. According to the transformer, the motor, the exhaust fan, the sealing box, the guide pipe and the air outlet are matched with each other, the motor is used for driving the exhaust fan to rotate, cold air generated by rotation of the exhaust fan is collected by the sealing box, the cold air is blown into the transformer body through the guide pipe to be cooled, and the cooled air is discharged from the air outlet, so that the problems that when the transformer works, an internal coil element can generate a large amount of heat, if the heat is not removed in time, the internal element of the transformer is burnt out at high temperature, the use of the transformer is influenced, the service life of the device is short, the cost is wasted are caused, the service life of the.
3. According to the invention, through the mutual matching of the screw rod, the screw block, the pressing plate, the bearing plate and the wire groove, the screw rod is driven to move by utilizing the interaction between the screw rod and the screw block, the pressing plate is driven to move by the screw rod, the pressing plate moves downwards to clamp the cable with the bearing plate, and the cable is limited and fixed by the pressing plate and the wire groove on the bearing plate, so that the problems that the cable is not fixed after being installed on a transformer, the stability is poor, the cable is pulled for a long time and can fall off or loosen from the transformer, the transformer has an electric leakage accident, the stability of the device is poor, the safety is low are solved, and the stability of the.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a structural alignment plate of the present invention;
FIG. 3 is a side view of a structural straight rod of the present invention;
FIG. 4 is a schematic cross-sectional view of a chassis of the present invention;
fig. 5 is a schematic top view of the air inlet of the present invention.
In the figure: 1. a transformer body; 2. a conduit; 3. a chassis; 4. an air inlet; 5. a top plate; 6. a working element; 7. sleeving blocks; 8. a support plate; 9. a straight rod; 10. an air outlet; 11. positioning a plate; 12. a base; 13. a bolt; 14. a connecting plate; 15. a limiting groove; 16. clamping a plate; 17. moving the plate; 18. a linkage rod; 19. a pressure spring; 20. a fixing plate; 21. a guide rail; 22. a slider; 23. a screw block; 24. a screw; 25. pressing a plate; 26. a bearing plate; 27. sealing the box; 28. an adsorption tank; 29. a motor; 30. an exhaust fan; 31. and (4) screening holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a transformer for power transmission of a transformer substation comprises a transformer body 1, a positioning plate 11 is fixedly connected to the bottom surface of the transformer body 1, a base 12 is movably sleeved outside the positioning plate 11, connecting plates 14 are fixedly connected to the bottom ends of both sides of the base 12, the number of the connecting plates 14 is four, the four connecting plates 14 are uniformly distributed at four corners of the base 12, bolts 13 are spirally sleeved on the connecting plates 14, the bolts 13 are driven to move through the spiral action of the bolts 13 and the connecting plates 14, the base 12 is fixed on a telegraph pole through the bolts 13, so that the transformer body 1 is convenient to mount, the four connecting plates 14 are additionally arranged, so that the bottom surface of the base 12 is uniformly stressed, two limiting grooves 15 are formed in the positioning plate 11, the number of the limiting grooves 15 is two, and the two limiting grooves 15 are bilaterally symmetrical relative, by arranging two limiting grooves 15, the two sides of the positioning plate 11 are uniformly stressed, the fixing stability is improved, fixing plates 20 are fixedly connected inside the limiting grooves 15, the number of the fixing plates 20 is two, a guide rail 21 is fixedly connected between the two fixing plates 20, a sliding block 22 is movably sleeved on the guide rail 21, a pressure spring 19 is fixedly connected to the side surface of the sliding block 22, the pressure spring 19 is movably sleeved outside the guide rail 21, the length value of the pressure spring 19 is equal to the distance value between the sliding block 22 and the fixing plates 20, the position of the pressure spring 19 is limited by the guide rail 21, the pressure spring 19 can drive the sliding block 22 to stably move, the pressure spring 19 is enabled to be in a normal state initially, clamping and separation of the clamping plate 16 and a clamping groove on the base 12 are realized through elastic expansion of the pressure spring 19, one end of the pressure spring 19 is fixedly connected on the fixing plates 20, and the movable connection of the gangbar 18 has the movable board 17, the side of the movable board 17 is fixedly connected with the card board 16, one end of the card board 16 extends to the outside of the base 12, the two sides of the base 12 are both provided with card slots matched with the card board 16, and the card slots and the card boards 16 are in a clamping relation, the positioning board 11 is placed into the base 12 by pressing the card board 16, the position of the positioning board 11 is limited by clamping the card board 16 and the card slots after loosening, so that the positioning board 11 can be stabilized in the base 12, the transformer body 1 is installed in this way, when maintenance is needed, the positioning board 16 is only pressed to withdraw from the card slots, the positioning board 11 can be taken out from the base 12, and the transformer body 1 can be separated, thereby avoiding the problems of large energy consumption during installation, and the transformer needs to be overhauled by climbing to a high place when damaged, the device is convenient to maintain while reducing the installation difficulty, the right side of the transformer body 1 is fixedly connected with a chassis 3, the top surface of the chassis 3 is fixedly connected with an air inlet 4, the top surface of the air inlet 4 is provided with sieve holes 31, the sieve holes 31 are uniformly distributed at the top of the air inlet 4, through the arrangement of the sieve holes 31, the suction force generated by the rotation of the suction fan 30 can extract air, meanwhile, the sieve holes 31 are utilized to block large-particle dust in the air, the problem that the dust enters the transformer body 1 and causes poor heat dissipation effect of the transformer body 1 is solved, the bottom end of the air inlet 4 extends to the inner cavity of the chassis 3 and is fixedly connected with an adsorption box 28, the bottom surface of the adsorption box 28 is fixedly connected with a seal box 27, the inner cavity of the seal box 27 is fixedly connected with a motor 29, the output shaft of the motor 29, one end of the conduit 2 extends to the inside of the transformer body 1, the left side of the transformer body 1 is fixedly connected with the air outlet 10, the motor 29 is utilized to drive the suction fan 30 to rotate, the suction fan 30 rotates to draw air from the air inlet 4, the air is collected by the sealing box 27 and then is blown into the inside of the transformer body 1 through the conduit 2 to be cooled, the cooled air is discharged from the air outlet 10, the problems that the internal elements of the transformer are burnt out at high temperature and the use of the transformer is influenced due to the fact that the internal elements of the transformer are not removed in time, the service life of the device is short, the cost is wasted are solved while the service life of the device is ensured, the top surface of the transformer body 1 is fixedly connected with the top plate 5, the top surface of the top plate 5 is fixedly connected with the working element 6, the top surface of the top plate 5 is fixedly connected with, and the screw 24 is movably sleeved in the screw block 23, the screw thread matched with the screw 24 is arranged in the screw block 23, the screw block 23 is spirally sleeved with the screw 24, the screw 24 and the screw block 23 are used for driving the pressing plate 25 to move downwards when the screw 24 is rotated, the pressing plate 25 moves downwards to shorten the distance between the pressing plate 25 and the receiving plate 26, so that the cable is clamped and fixed through the pressing plate 25 and the receiving plate 26, the problems that the cable is not fixed after being installed, the stability is poor, the cable falls off or loosens from the transformer due to long-time pulling, the transformer has electric leakage accidents, the stability of the device is poor, the safety is low are solved, the safety is improved while the stability of the device is improved, one end of the screw 24 extends to the lower part of the screw block 23 and is movably connected with the pressing plate 25, sleeve blocks 7 are fixedly connected to both sides of the pressing plate 25, and the sleeve blocks 7 are movably sleeved outside the straight, the bottom fixedly connected with of straight-bar 9 accepts board 26, and accept and all seted up the wire casing on board 26 and the clamp plate 25, the shape of wire casing is arc, the wire casing distributes the quantity on clamp plate 25 and accept board 26 equal and the one-to-one for the wire casing that mutually corresponds on clamp plate 25 and the accept board 26 can merge carries out the centre gripping to the cable conductor, sets up the wire casing simultaneously and be arc, reduces the slip of cable conductor in the wire casing, improves fixed stability, and the cable conductor equidistance is arranged and has improved the aesthetic property of circuit.
The working principle is as follows: when the cable connector is used, firstly, the base 12 is fixed on a telegraph pole through the spiral action of the bolt 13 and the connecting plate 14, then the clamping plate 16 is pressed down, the clamping plate 16 drives the moving plate 17 to move, the moving plate 17 drives the linkage rod 18 to move, the linkage rod 18 drives the sliding block 22 to move, the sliding block 22 compresses the pressure spring 19 to generate elasticity while moving on the guide rail 21, at the moment, the positioning plate 11 is placed into the base 12, the clamping plate 16 is loosened, the pressure spring 19 recovers the elasticity to drive the clamping plate 16 to be clamped into the clamping groove, so that the positioning plate 11 is fixed in the base 12, namely, the transformer body 1 is fixed on the telegraph pole, then a cable is connected to the transformer body 1 after passing through the space between the pressure plate 25 and the bearing plate 26, after the connection is completed, the screw rod 24 is rotated, the screw rod 24 and the screw block 23 spirally act to, fix the cable conductor at last in the wire casing on clamp plate 25 and adapter plate 26 can, at the transformer body 1 during operation, motor 29 drives extraction fan 30 and rotates, extraction fan 30 rotates and produces suction, make 4 extraction air of air intake get into in the adsorption tank 28, the air gets into in the joint sealing 27 behind the adsorption tank 28 adsorption moisture, cold wind blows in transformer body 1 through pipe 2 at last and cools down, then the air realizes the circulation from air outlet 10 discharge, when needing to overhaul, only need press down in the cardboard 16 withdraws from the draw-in groove, with locating plate 11 follow base 12 in extract can.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a transformer for transformer substation's power transmission, includes transformer body (1), its characterized in that: the bottom surface of the transformer body (1) is fixedly connected with a positioning plate (11), a base (12) is movably sleeved outside the positioning plate (11), a limiting groove (15) is formed in the positioning plate (11), and the inner part of the limiting groove (15) is fixedly connected with two fixing plates (20), the number of the fixing plates (20) is two, a guide rail (21) is fixedly connected between the two fixed plates (20), a sliding block (22) is movably sleeved on the guide rail (21), a pressure spring (19) is fixedly connected with the side surface of the sliding block (22), one end of the pressure spring (19) is fixedly connected on the fixed plate (20), a linkage rod (18) is movably connected with the side surface of the sliding block (22), and the linkage rod (18) is movably connected with a moving plate (17), the side surface of the moving plate (17) is fixedly connected with a clamping plate (16), and one end of the clamping plate (16) extends to the outside of the base (12).
2. The transformer for substation power transmission according to claim 1, characterized in that: the utility model discloses a transformer body's transformer, including transformer body's (1) right side fixedly connected with machine case (3), and the top surface fixedly connected with air intake (4) of machine case (3), the bottom of air intake (4) extends to machine case (3) inner chamber and fixedly connected with adsorption tank (28), and adsorbs bottom surface fixedly connected with joint sealing (27) of tank (28), the inner chamber fixedly connected with motor (29) of joint sealing (27), and the fixed cover has had suction fan (30) on the output shaft of motor (29), the bottom surface fixedly connected with pipe (2) of joint sealing (27), the one end of pipe (2) extends to the inside of transformer body (1), the left side fixedly connected with air outlet (10) of transformer body (1).
3. The transformer for substation power transmission according to claim 1, characterized in that: the transformer comprises a transformer body (1), and is characterized in that a top surface fixedly connected with top plate (5) and a top surface fixedly connected with working element (6) of the top plate (5), a top surface fixedly connected with straight rod (9) of the top plate (5), and a top surface fixedly connected with support plate (8) of the straight rod (9), a middle fixedly connected with screw block (23) of the bottom surface of the support plate (8), and a screw rod (24) is sleeved in the inner part of the screw block (23), one end of the screw rod (24) extends to the lower part of the screw block (23) and is movably connected with a pressing plate (25), and two sides of the pressing plate (25) are fixedly connected with sleeve blocks (7), the sleeve blocks (7) are movably sleeved outside the straight rod (9), the bottom fixedly connected with bearing plate (26) of the straight rod (9), and wire grooves are formed in the bearing plate (26) and the.
4. The transformer for substation power transmission according to claim 1, characterized in that: the clamping grooves matched with the clamping plates (16) are formed in the two sides of the base (12), and the clamping grooves are in clamping connection with the clamping plates (16).
5. The transformer for substation power transmission according to claim 1, characterized in that: the compression spring (19) is movably sleeved outside the guide rail (21), and the length value of the compression spring (19) is equal to the distance value from the sliding block (22) to the fixed plate (20).
6. The transformer for substation power transmission according to claim 1, characterized in that: the base is characterized in that connecting plates (14) are fixedly connected to the bottom ends of two sides of the base (12), the number of the connecting plates (14) is four, the four connecting plates (14) are evenly distributed at four corners of the base (12), and bolts (13) are sleeved on the connecting plates (14) in a spiral mode.
7. The transformer for substation power transmission according to claim 2, characterized in that: the top surface of the air inlet (4) is provided with sieve holes (31), and the sieve holes (31) are uniformly distributed at the top of the air inlet (4).
8. A transformer for substation power transmission according to claim 3, characterized in that: the screw block (23) is internally provided with a thread matched with the screw rod (24), and the screw block (23) is spirally sleeved with the screw rod (24).
9. A transformer for substation power transmission according to claim 3, characterized in that: the wire grooves are arc-shaped, and the number of the wire grooves distributed on the pressing plate (25) and the bearing plate (26) is equal and the wire grooves correspond to one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946969.3A CN112309679B (en) | 2020-09-10 | 2020-09-10 | Transformer for power transmission of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946969.3A CN112309679B (en) | 2020-09-10 | 2020-09-10 | Transformer for power transmission of transformer substation |
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| Publication Number | Publication Date |
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| CN112309679A true CN112309679A (en) | 2021-02-02 |
| CN112309679B CN112309679B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010946969.3A Active CN112309679B (en) | 2020-09-10 | 2020-09-10 | Transformer for power transmission of transformer substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447817A (en) * | 2022-03-12 | 2022-05-06 | 刘俊 | Anti-creeping low-voltage cabinet capable of secondarily fixing interface |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208433266U (en) * | 2018-07-26 | 2019-01-25 | 深圳市和昇隆电子有限公司 | A kind of transformer with dust-proof radiating |
| CN209071072U (en) * | 2018-12-24 | 2019-07-05 | 兴化市东方电器有限公司 | A kind of audio-frequency transformer of maintenance easy to disassemble |
| CN209766232U (en) * | 2019-04-17 | 2019-12-10 | 河北中开明泰电气设备有限公司 | Safe current transformer |
-
2020
- 2020-09-10 CN CN202010946969.3A patent/CN112309679B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208433266U (en) * | 2018-07-26 | 2019-01-25 | 深圳市和昇隆电子有限公司 | A kind of transformer with dust-proof radiating |
| CN209071072U (en) * | 2018-12-24 | 2019-07-05 | 兴化市东方电器有限公司 | A kind of audio-frequency transformer of maintenance easy to disassemble |
| CN209766232U (en) * | 2019-04-17 | 2019-12-10 | 河北中开明泰电气设备有限公司 | Safe current transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447817A (en) * | 2022-03-12 | 2022-05-06 | 刘俊 | Anti-creeping low-voltage cabinet capable of secondarily fixing interface |
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| CN112309679B (en) | 2022-04-19 |
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