CN110706881A - Protection structure of distribution transformer of distribution network of distributing type new forms of energy - Google Patents

Abstract

The invention discloses a protection structure for a distribution transformer of a distributed new energy distribution network, which relates to the field of transformers. The following solution is proposed, which includes a transformer body and a protective casing, the outer part of the transformer body is sheathed with a protective casing, and the top end of the protective casing is connected with a mounting casing, and the interior of the mounting casing is provided with a mounting seat , and the bottom end of the mounting seat is connected with the top end of the protective shell, and the top end of the mounting seat is provided with a mounting groove. The invention can effectively protect the heat dissipation of the transformer during the use process, and can limit the dust from entering the protection shell to the maximum extent, protect the cleanliness of the heat dissipation fins, ensure the normal heat dissipation performance of the device, and at the same time can The device is effectively buffered and protected during transportation to avoid damage to its transportation, which is suitable for promotion.

Description

A protective structure for distribution transformers in a distributed new energy distribution network

technical field

The invention relates to the field of transformers, in particular to a protection structure for a distribution transformer of a distributed new energy distribution network.

Background technique

Distribution transformer, referred to as "distribution transformer". Refers to a static electrical appliance in the power distribution system that transforms AC voltage and current according to the law of electromagnetic induction to transmit AC power. In some areas, power transformers with voltage levels below 35 kV are called "distribution transformers", or "distribution transformers" for short. The place and place where the "distribution transformer" is installed, that is, the substation. A distribution power transformer is a static electrical equipment, which is used to convert an AC voltage of a certain value into another voltage with the same frequency or several different values. When the primary winding is energized with alternating current, an alternating magnetic flux is generated, and the alternating magnetic flux induces an alternating electromotive force in the secondary winding through the magnetic permeability of the iron core. The level of the secondary induced electromotive force is related to the number of turns of the primary and secondary windings, that is, the voltage is proportional to the number of turns. The main function is to transmit electrical energy, therefore, the rated capacity is its main parameter. The rated capacity is a customary value for the performance of power, which is the size of the transmitted electrical energy, expressed in KVA or MVA. When the rated voltage is applied to the transformer, it is used to determine the rated current that does not exceed the temperature rise limit under specified conditions. The more energy-saving power transformer is the amorphous alloy iron core distribution transformer, and its biggest advantage is that the no-load loss value is extremely low. Whether the no-load loss value can be finally guaranteed is the core issue to be considered in the entire design process. When arranging the product structure, in addition to considering that the amorphous alloy core itself is not affected by external forces, it is also necessary to accurately and reasonably select the characteristic parameters of the amorphous alloy during calculation.

When the traditional distribution transformers are transported, they collide with each other, causing their internal structures to collide and damage, and at the same time, the heat sinks that are used for heat dissipation will also collide and cause damage. The heat sink is in direct contact with the outside world, so after a long time of use, a lot of dust will adhere to the heat sink, which will affect the heat dissipation effect of the heat sink on the distribution transformer. Therefore, in order to solve such problems, we propose a The protective structure of the distribution transformer of the distribution network of distributed new energy.

SUMMARY OF THE INVENTION

The invention proposes a protection structure for a distribution transformer of a distributed new energy distribution network, which solves the problems of heat dissipation protection during use and collision protection during transportation of existing transformers.

In order to achieve the above object, the present invention adopts the following technical solutions:

A protection structure for a distribution transformer of a distribution network of distributed new energy, comprising a transformer body and a protection shell, the outer part of the transformer body is sheathed with a protection shell, and the top of the protection shell is connected with a mounting shell The inside of the mounting shell is provided with a mounting seat, and the bottom end of the mounting seat is connected with the top end of the protective shell, the top end of the mounting seat is provided with a mounting groove, and the mounting groove is installed by screws There is a biaxial motor, the output shafts at both ends of the biaxial motor are arranged horizontally, and both are connected with a rotating rod, and the end of the rotating rod is connected with a main pulley, and the inner wall of the bottom end of the protective casing is connected with a Two symmetrically arranged vertical plates, and the upper section of the vertical plates is provided with a horizontally arranged transmission rod, and the transmission rod is rotatably connected with the vertical plate, and one end of the transmission rod is located at the position where the two vertical plates are close to each other. One side, and its circumferential side wall is installed with cooling fan blades arranged in an annular array, the other end of the transmission rod is connected with a rotating plate, and the circumferential side wall of the transmission rod is fixedly sleeved with an auxiliary pulley, and the auxiliary pulley Located on the side where the two vertical plates are far away from each other, the inner walls on both sides of the protective shell are movably installed with movable plates, and the side of the movable plate close to the center of the protective shell is provided with a tooth slot, and the rotating plate is located at the center of the protective shell. The inner part of the tooth slot is arranged, and two sides of the transformer body are respectively connected with a set of symmetrically arranged first movable rods and a set of symmetrically arranged third movable rods, and the third movable rods are arranged above the first movable rods, so The inner wall of the bottom end of the protective casing is connected with two symmetrically arranged bottom plates, and the transformer body is arranged between the two bottom plates, the inner wall of the top end of the protective casing is connected with a sleeve, and the inner wall of the sleeve is A first spring arranged vertically is connected, the bottom end of the first spring is connected with a second movable rod, the end of the second movable rod extends to the bottom of the sleeve, and the third movable rod slides through the second movable rod. The movable rod is arranged, the circumferential side wall of the third movable rod is sleeved with a second spring, and one end of the second spring is connected with the side wall of the transformer body, and the other end of the second spring is connected with the circumference of the second movable rod. Side wall connection.

Preferably, two inner walls of the protective casing are provided with symmetrically arranged movable grooves, and the movable grooves are adapted to the movable plates, and the movable plates are located inside the movable grooves to move.

Preferably, two symmetrically arranged guide grooves are provided on both inner walls of the protective casing inside the movable groove, and two symmetrically arranged guide blocks are connected on the sides of the two movable plates away from each other. In addition, the guide block is adapted to the guide groove and is slidably connected, and the sections of the guide block and the guide groove are both arranged in a T-shaped structure.

Preferably, the inner walls of the upper and lower sides of the tooth slot are provided with tooth blocks along the length direction thereof, the rotating plate is arranged in an arc structure, and the circular arc side walls of the rotating plate are evenly installed with tooth blocks, and all the The tooth blocks on the inner wall of the tooth slot mesh with the tooth blocks on the rotating plate.

Preferably, both the primary pulley and the secondary pulley are provided with belt installation grooves, and a transmission belt is connected between the primary pulley and the secondary pulley.

Preferably, a movement slot is provided through between the two side walls of the bottom plate, and the movement slot is adapted to the first movable rod.

Preferably, the end of the second movable rod inside the sleeve and the end of the third movable rod away from the transformer body are both connected with a limiting block.

Preferably, two sets of symmetrically arranged ventilation holes are evenly arranged through the movable plate along its length direction, and two sets of symmetrically arranged heat dissipation holes are evenly arranged through the two side walls of the protective casing along its width direction, and The heat dissipation holes have the same structure as the ventilation holes.

The beneficial effects of the present invention are as follows: 1. The rotation of the rotating rod and the main pulley is driven by the biaxial motor, so that the auxiliary pulley can be driven to rotate through the transmission belt, so that the transmission rod drives the cooling fan blade and the rotating plate to rotate, so that the rotating plate can rotate. The tooth block of the radiator is engaged with the tooth block on the inner wall of the tooth slot, so that the movable plate moves in the movable slot, so that the heat dissipation hole and the heat conduction hole can overlap, and then the heat dissipation fan blade will protect the heat generated by the transformer inside the casing through the heat dissipation hole and the heat conduction hole. When the device is not working, the rotating plate drives the movable plate to slide in the movable slot, so that the heat conduction hole and the heat dissipation hole are staggered, so as to prevent the dust from the outside air from entering the protective shell and adhering to the heat sink, so as to ensure the safety of the device. Normal thermal performance.

2. Drive the third movable rod and the second movable rod to move up and down through the transformer body, so that the second movable rod can slide in the sleeve, and drive the first spring to deform, so that the transformer can obtain vertical movement during transportation. directional buffer protection, and through the left and right shaking of the transformer, the third movable rod slides left and right on the second movable rod, and drives the second spring to deform, so that the transformer can obtain horizontal buffer protection during transportation, so that it can be Effectively protect the internal structure of the transformer to avoid damage to the transformer during transportation.

In summary, the device can effectively protect the heat dissipation of the transformer during use, and can limit the entry of dust into the protective shell to the greatest extent, protect the cleanliness of the heat sink, and ensure the normal heat dissipation performance of the device At the same time, the device can be effectively buffered and protected during transportation to avoid damage to its transportation, which is suitable for promotion.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is an enlarged view of A in FIG. 1 .

FIG. 3 is an enlarged view of B in FIG. 1 .

Figure 4 is a front view of the movable panel of the present invention.

FIG. 5 is a schematic structural diagram when the heat dissipation holes and the heat conduction holes of the present invention are overlapped.

FIG. 6 is a schematic diagram of the structure of the present invention after the heat dissipation holes and the heat conduction holes are staggered.

Labels in the figure: 1 Protective shell, 2 Mounting shell, 3 Transformer body, 4 Mounting seat, 5 Biaxial motor, 6 Rotating rod, 7 Main pulley, 8 Bottom plate, 9 First movable rod, 10 Vertical plate, 11 Heat dissipation Fan blade, 12 pulleys, 13 movable plate, 14 heat dissipation hole, 15 heat conduction hole, 16 transmission rod, 17 tooth slot, 18 rotating plate, 19 sleeve, 20 first spring, 21 second movable rod, 22 third movable Rod, 23 second spring, 24 movable groove.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

1-6, a protective structure of a distribution transformer of a distributed new energy distribution network includes a transformer body 3 and a protective casing 1. The outer casing of the transformer body 3 is sheathed with a protective casing 1, and the protective casing The top end of 1 is connected with the mounting shell 2, the interior of the mounting shell 2 is provided with a mounting seat 4, and the bottom end of the mounting seat 4 is connected with the top end of the protective shell 1, and the top end of the mounting seat 4 is provided with a mounting groove, and the installation A biaxial motor 5 is installed in the groove by screws, and the output shafts at both ends of the biaxial motor 5 are arranged horizontally, and are connected with a rotating rod 6, and the end of the rotating rod 6 is connected with a main pulley 7 to protect the casing 1. The inner wall of the bottom end is connected with two symmetrically arranged vertical plates 10, and the upper section of the vertical plate 10 is provided with a horizontally arranged transmission rod 16, and the transmission rod 16 is rotatably connected with the vertical plate 10, and one end of the transmission rod 16 is located at two One side of the vertical plates 10 that are close to each other, and its circumferential side wall is provided with cooling fan blades 11 arranged in an annular array. Auxiliary pulley 12, and the auxiliary pulley 12 is located on the side of the two vertical plates 10 away from each other, the inner walls on both sides of the protective shell 1 are movably installed with movable plates 13, and the movable plate 13 is close to the side of the center of the protective shell 1 A tooth slot 17 is provided, and the rotating plate 18 is arranged inside the tooth slot 17. Both sides of the transformer body 3 are respectively connected with a set of symmetrically arranged first movable rods 9 and a set of symmetrically arranged third movable rods 22. The three movable rods 22 are arranged above the first movable rod 9 , the inner wall of the bottom end of the protective casing 1 is connected with two symmetrically arranged bottom plates 8 , and the transformer body 3 is arranged between the two bottom plates 8 , and the protective casing 1 is The inner wall of the top end is connected with a sleeve 19, and the inner wall of the sleeve 19 is connected with a first spring 20 arranged vertically, the bottom end of the first spring 20 is connected with a second movable rod 21, and the end of the second movable rod 21 extends It is arranged below the sleeve 19, and the third movable rod 22 slides through the second movable rod 21. The circumferential side wall of the third movable rod 22 is sleeved with a second spring 23, and one end of the second spring 23 is connected to the transformer body. 3 is connected to the side wall, the other end of the second spring 23 is connected to the circumferential side wall of the second movable rod 21, the inner walls on both sides of the protective casing 1 are provided with symmetrically arranged movable grooves 24, and the movable groove 24 is connected to the movable plate 13. Fitting, and the movable plate 13 is located in the movable groove 24 for movement, the inner walls of the protection shell 1 are located in the movable groove 24 with two symmetrically arranged guide grooves, and the two movable plates 13 are on the side away from each other. Two symmetrically arranged guide blocks are connected, and the guide blocks are adapted to the guide grooves and connected in a sliding manner, and the sections of the guide blocks and the guide grooves are both arranged in a T-shaped structure, and the inner walls of the upper and lower sides of the tooth slot 17 are along its length direction. Both are provided with tooth blocks, the rotating plate 18 is arranged in an arc structure, and the circular arc sidewall of the rotating plate 18 is evenly installed with tooth blocks, and the tooth blocks on the inner wall of the tooth slot 17 mesh with the tooth blocks on the rotating plate 18, the main Both the pulley 7 and the auxiliary pulley 12 are provided with belt installation grooves, and the main pulley 7 and the auxiliary pulley 12 are provided with belt installation grooves. A transmission belt is connected between the two side walls of the bottom plate 8, and a moving groove is arranged through the two side walls of the bottom plate 8, and the moving groove is adapted to the first movable rod 9, and one end of the second movable rod 21 located inside the sleeve 19 is connected to the third movable rod. 22. One end away from the transformer body 3 is connected to the limiting block. The movable plate 13 is provided with two sets of symmetrically arranged ventilation holes 15 evenly penetrating along its length direction. There are two sets of symmetrically arranged heat dissipation holes 14 , and the structure of the heat dissipation holes 14 and the ventilation holes 15 is the same.

Example 1:

During the use of the device, the biaxial motor 5 is activated, so that the biaxial motor 5 drives the rotating rod 6 and the main pulley 7 to rotate, so that the main pulley 7 drives the auxiliary pulley 12 to rotate through the transmission belt, and the auxiliary pulley 12 drives the transmission rod 16 Rotate, so that the transmission rod 16 drives the cooling fan blade 11 to rotate, and at the same time, the transmission rod 16 drives the rotating plate 18 to rotate, so that the tooth blocks on the rotating plate 18 are engaged with the tooth blocks on the inner wall of the tooth slot 17, so that the rotating plate 18 will make the moving plate 18 rotate. The plate 13 slides inside the movable slot 24. When the heat conduction hole 15 on the movable plate 13 coincides with the heat dissipation hole 14 on the inner wall of the protective shell 1, the heat dissipation fan blade 11 will pass the hot air inside the protective shell 1 through the heat conduction hole 15 and dissipate heat. The hole 14 is discharged, and when the rotating plate 18 rotates until the tooth block on its arc wall is disengaged from the tooth block inside the tooth slot 17, the device is in the process of continuous heat dissipation operation. When the tooth blocks on the inner wall of 17 are engaged, the rotating plate 18 rotates so that the movable plate 13 moves toward the initial position, and makes the ventilation holes 15 and the heat dissipation holes 14 staggered, which can prevent external dust from entering the interior of the protective casing 1 .

Embodiment 2:

When the whole device is in the process of transportation, if shaking or collision occurs, the transformer body 3 will drive the third movable rod 22 to shake back and forth on the second movable rod 21, and at the same time, the second spring 23 will be deformed. The elastic force of the second spring 23 enables the transformer body 3 inside the device to obtain horizontal buffer protection, and at the same time, the transformer body 3 will drive the third movable rod 22 to pull the second movable rod 21 to slide inside the sleeve 19, and the second movable rod 21 will pull the first spring 20 to deform it. The elastic force of the first spring 20 enables the device to obtain vertical buffer protection, so that the heat sink on the transformer body 3 and its internal components can be effectively protected. protection management.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

1. A protective structure for a distribution transformer of a distribution network of distributed new energy, comprising a transformer body (3) and a protective casing (1), characterized in that the transformer body (3) is covered with a protective outer cover a housing (1), and a mounting housing (2) is connected to the top of the protective housing (1), a mounting seat (4) is provided inside the mounting housing (2), and the mounting seat ( The bottom end of 4) is connected to the top end of the protective casing (1), the top end of the mounting seat (4) is provided with a mounting groove, and the double shaft motor (5) is installed in the mounting groove by screws, and the double shaft motor (5) is installed in the mounting groove. The output shafts at both ends of the shaft motor (5) are arranged horizontally, and are connected with a rotating rod (6), and the end of the rotating rod (6) is connected with a main pulley (7), and the protective casing (1) ) is connected with two symmetrically arranged vertical plates (10), and the upper section of the vertical plate (10) is provided with a horizontally arranged transmission rod (16), and the transmission rod (16) is connected to the vertical plate. (10) Rotationally connected, one end of the transmission rod (16) is located on the side of the two vertical plates (10) that are close to each other, and the circumferential side wall is provided with cooling fan blades (11) arranged in an annular array, The other end of the transmission rod (16) is connected with a rotating plate (18), and the peripheral side wall of the transmission rod (16) is fixedly sleeved with an auxiliary pulley (12), and the auxiliary pulley (12) is located in two vertical positions. On the side of the plates (10) that are far away from each other, a movable plate (13) is movably installed on both inner walls of the protective shell (1), and the movable plate (13) is close to the side of the central position of the protective shell (1). A tooth slot (17) is provided, and the rotating plate (18) is located inside the tooth slot (17), and two sides of the transformer body (3) are respectively connected with a set of symmetrically arranged first movable rods (9) and a set of symmetrically arranged third movable rods (22), and the third movable rods (22) are arranged above the first movable rods (9), and the inner wall of the bottom end of the protective shell (1) is connected with two Symmetrically arranged bottom plates (8), and the transformer body (3) is positioned between the two bottom plates (8), a sleeve (19) is connected to the top inner wall of the protective casing (1), and the sleeve (19) is provided. The inner wall of the cylinder (19) is connected with a vertically arranged first spring (20), the bottom end of the first spring (20) is connected with a second movable rod (21), and the end of the second movable rod (21) The third movable rod (22) slides through the second movable rod (21), and the circumferential side wall of the third movable rod (22) is sleeved with a second spring (23), and one end of the second spring (23) is connected to the side wall of the transformer body (3), and the other end of the second spring (23) is connected to the circumferential side wall of the second movable rod (21). 2 . The protection structure for a distribution transformer of a distributed new energy distribution network according to claim 1 , wherein the inner walls on both sides of the protection shell ( 1 ) are provided with symmetrically arranged movable grooves. 3 . (24), and the movable slot (24) is adapted to the movable plate (13), and the movable plate (13) is located inside the movable slot (24) to move. 3. A protective structure for a distribution transformer of a distributed new energy distribution network according to claim 2, characterized in that the inner walls on both sides of the protective casing (1) are located on the side of the movable slot (24). Two symmetrically arranged guide grooves are arranged inside, and two symmetrically arranged guide blocks are connected to the sides of the two movable plates (13) away from each other, and the guide blocks are adapted to the guide grooves, And the sliding connection, and the section of the guide block and the guide groove are arranged in a T-shaped structure. 4 . The protection structure of a distribution transformer of a distributed new energy distribution network according to claim 1 , wherein the inner walls of the upper and lower sides of the tooth slot ( 17 ) are provided with The tooth block, the rotating plate (18) is arranged in an arc structure, and the circular arc side wall of the rotating plate (18) is evenly installed with the tooth block, and the tooth block on the inner wall of the tooth slot (17) is connected with the tooth block. The tooth blocks on the rotating plate (18) are engaged. 5. A protection structure for a distribution transformer of a distributed new energy distribution network according to claim 1, characterized in that both the main pulley (7) and the auxiliary pulley (12) are provided with A belt installation groove is provided, and a transmission belt is connected between the main pulley (7) and the auxiliary pulley (12). 6 . The protection structure for a distribution transformer of a distributed new energy distribution network according to claim 1 , wherein a moving groove is provided through between the two side walls of the bottom plate ( 8 ), and The moving slot is adapted to the first movable rod (9). 7. The protective structure for a distribution transformer of a distributed new energy distribution network according to claim 1, wherein one end of the second movable rod (21) located inside the sleeve (19) is connected to the One end of the third movable rod (22) away from the transformer body (3) is connected to a limiting block. 8 . The protective structure for a distribution transformer of a distributed new energy distribution network according to claim 1 , wherein two groups of symmetrical groups are arranged uniformly through the movable plate ( 13 ) along its length direction. 9 . The ventilation holes (15) are provided, and two sets of symmetrically arranged heat dissipation holes (14) are uniformly penetrated through the two side walls of the protective casing (1) along the width direction thereof, and the heat dissipation holes (14) are connected with the heat dissipation holes (14). The ventilation holes (15) have the same structure.

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