CN217307528U

CN217307528U - High-voltage frequency converter for power distribution system

Info

Publication number: CN217307528U
Application number: CN202123177701.7U
Authority: CN
Inventors: 余芙容; 葛爱兵; 徐源; 宋栗
Original assignee: Jiangsu Liguangrui Power Electronic Technology Co ltd
Current assignee: Jiangsu Liguangrui Power Electronic Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-08-26
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to the technical field of frequency converters, in particular to a high-voltage frequency converter for a power distribution system, which comprises a frequency converter body, wherein a moving assembly is arranged on the side surface of the frequency converter body, and a heat dissipation assembly is arranged at the top of the frequency converter body; the utility model discloses a frequency converter body, including frequency converter body, removal subassembly, first support frame, second support frame, first regulating block, second regulating block and second regulating block, the removal subassembly includes first support frame and second support frame, first support frame bottom sets up first pulley, second support frame bottom sets up the second pulley, frequency converter body bilateral symmetry sets up first regulating block and second regulating block, first regulating block one end slides and sets up in the first regulating groove, a side surface sets up second electric putter in the first regulating groove, the utility model discloses can carry out the quick promotion removal to the frequency converter body, remove the simple operation, simultaneously can convection current cooling, and the radiating effect is good.

Description

High-voltage frequency converter for power distribution system

Technical Field

The utility model relates to a converter technical field especially relates to a high-voltage inverter for distribution system.

Background

With the rapid development of modern power electronic technology and microelectronic technology, high-voltage high-power variable-frequency speed regulation devices are continuously mature, and the high-voltage problem which is difficult to solve originally is solved well in recent years by device series connection or unit series connection. Generally speaking, the conversion efficiency of a frequency converter is generally 97% -98%, that is to say, 2% -3% of electric energy is converted into heat energy, which is far greater than the heat generated by electric appliances such as a common switch, an alternating current contactor and the like. Generally, a circuit breaker, a fuse, an input reactor, an input filter, a frequency converter, an output filter, an input reactor, and the like are arranged in a frequency converter cabinet, so that the fault rate of the frequency converter exponentially increases with the increase of temperature, and the service life exponentially decreases with the increase of temperature.

The utility model discloses a high-voltage inverter for distribution system as grant bulletin number is CN214707543U, including transformer cabinet, power unit cabinet, switch board and operation interface, the transformer cabinet is arranged from left to right in proper order, operation interface is located the surface of switch board, the top fixed mounting of transformer cabinet, power unit cabinet and switch board has the dust guard, the fixed surface of dust guard installs out the tuber pipe, the quantity of going out the tuber pipe is three, and it can't carry out quick travel with this device, and the removal operation is inconvenient, and its radiating effect is not good simultaneously, influences the stability in use.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems existing in the background technology, the utility model provides a high-voltage frequency converter for a power distribution system, which comprises a frequency converter body and a control panel arranged on one side surface of the frequency converter body, wherein a base is arranged at the bottom of the frequency converter body, a moving assembly is arranged on the side surface of the frequency converter body, and a heat dissipation assembly is arranged at the top of the frequency converter body;

the moving assembly comprises a first support frame and a second support frame, the first support frame and the second support frame are symmetrically arranged on the surfaces of two sides of the frequency converter body, a first pulley is arranged at the bottom of the first support frame, a second pulley is arranged at the bottom of the second support frame, a first adjusting block and a second adjusting block are symmetrically arranged on two sides of the frequency converter body, one end of the first adjusting block is slidably arranged in a first adjusting groove, one end of the second adjusting block is slidably arranged in a second adjusting groove, the first adjusting groove is arranged on one side surface of the first support frame, the second adjusting groove is arranged on one side surface of the second support frame, a first electric push rod is arranged on one side surface in the first adjusting groove, one end of a piston rod of the first electric push rod is connected with the first adjusting block, a second electric push rod is arranged on one side surface in the second adjusting groove, one end of a piston rod of the second electric push rod is connected with the second adjusting block, and shock absorption components are arranged at edges and corners of the base.

Preferably, the first electric push rod and the second electric push rod are electrically connected with the control panel through connecting wires, and the specifications of the first electric push rod and the second electric push rod are the same.

Preferably, damper unit is including supporting the callus on the sole, it sets up the guide bar to support the callus on the sole top, the guide bar activity sets up in the guide pin bushing, the guide pin bushing is inlayed and is set up in base bottom edges and corners department, the guide pin bushing inside one side surface sets up damping spring, damping spring one end is connected with the guide bar.

Preferably, the heat dissipation assembly comprises an air inlet channel and a mounting frame, the air inlet channel is arranged in the middle of the base, a lower heat dissipation fan is arranged on one side in the air inlet channel, the mounting frame is arranged at the top of the frequency converter body, and an upper heat dissipation fan is arranged in the mounting frame.

Preferably, one end of the air inlet channel is provided with a flow guide sleeve, and the bottom of the mounting frame is provided with a gas collecting cover.

Preferably, the other end of the air inlet channel is provided with a lower filter screen, and the top of the mounting frame is provided with an upper filter screen.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:

1. the utility model discloses a lifting can be carried out the converter body to first electric putter and second electric putter's operation, removes through first pulley and second pulley, removes the converter body, has realized the quick travel installation function of converter body.

2. The utility model discloses a heat-radiating component's setting can discharge the heat in the converter body fast, has improved the radiating efficiency, has guaranteed the operating stability of converter body.

Drawings

Fig. 1 is a schematic structural diagram of a high-voltage inverter for a power distribution system according to a first embodiment;

FIG. 2 is a schematic diagram of a cross-sectional view of a moving component of a high voltage inverter for an electrical distribution system;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic diagram of a right-side sectional structure of a heat dissipation assembly in a high-voltage inverter for a power distribution system.

Reference numerals: 1. a moving assembly; 2. a base; 3. a heat dissipating component; 4. a frequency converter body; 5. a control panel; 31. a lower filter screen; 32. an air inlet channel; 33. a lower heat dissipation fan; 34. a pod; 35. a gas-collecting hood; 36. an upper heat dissipation fan; 37. a filter screen is arranged; 38. a mounting frame; 101. a first pulley; 102. a first electric push rod; 103. a first regulating groove; 104. a first regulating block; 105. a first support frame; 106. a second adjustment groove; 107. a second regulating block; 108. a second electric push rod; 109. a second support frame; 110. a second pulley; 111. a damping spring; 112. a guide sleeve; 113. a guide bar; 114. supporting the foot pad.

Detailed Description

Example one

As shown in fig. 1-2, the utility model provides a high-voltage frequency converter for a power distribution system, which comprises a frequency converter body 4 and a control panel 5 arranged on one side surface of the frequency converter body 4, wherein the bottom of the frequency converter body 4 is provided with a base 2, the side surface of the frequency converter body 4 is provided with a moving component 1, and the top of the frequency converter body 4 is provided with a heat dissipation component 3;

the moving assembly 1 comprises a first supporting frame 105 and a second supporting frame 109, the first supporting frame 105 and the second supporting frame 109 are symmetrically arranged on the two side surfaces of the frequency converter body 4, the bottom of the first supporting frame 105 is provided with a first pulley 101, the bottom of the second supporting frame 109 is provided with a second pulley 110, the two sides of the frequency converter body 4 are symmetrically provided with a first adjusting block 104 and a second adjusting block 107, one end of the first adjusting block 104 is slidably arranged in a first adjusting groove 103, one end of the second adjusting block 107 is slidably arranged in a second adjusting groove 106, the first adjusting groove 103 is arranged on one side surface of the first supporting frame 105, the second adjusting groove 106 is arranged on one side surface of the second supporting frame 109, one side surface in the first adjusting groove 103 is provided with a first electric push rod 102, one end of a piston rod of the first electric push rod 102 is connected with the first adjusting block 104, one side surface in the second adjusting groove 106 is provided with a second electric push rod 108, one end of a piston rod of the second electric push rod 108 is connected with the second adjusting

block

107, 2 edges and corners of base frame set up damper, and first electric putter 102 and second electric putter 108 all pass through connecting wire and control panel 5 electric connection, and first electric putter 102 is the same with the specification of second electric putter 108.

In this embodiment, when the frequency converter body 4 needs to be moved, the first electric push rod 102 and the second electric push rod 108 are operated, the first electric push rod 102 and the second electric push rod 108 drive the first adjusting block 104 and the second adjusting block 107, the first adjusting block 104 and the second adjusting block 107 drive the frequency converter body 4 to move, and then the frequency converter body 4 is lifted, and then the device is moved through the first pulley 101 and the second pulley 110, when the device is moved to the installation position, the first electric push rod 102 and the second electric push rod 108 are retracted, and then the frequency converter body 4 is attached to the ground and fixed.

Example two

As shown in fig. 3, the utility model provides a high-voltage inverter for distribution system compares in embodiment one, and this embodiment still includes damper, and damper is including supporting callus on the sole 114, supports the callus on the sole 114 top and sets up guide bar 113, and the activity of guide bar 113 sets up in guide pin bushing 112, and guide pin bushing 112 is inlayed and is set up in 2 bottom edges and corners departments of base, and a side surface sets up damping spring 111 in the guide pin bushing 112, and damping spring 111 one end is connected with guide bar 113.

In this embodiment, when converter body 4 descends in-process, support callus on the sole 114 and ground contact, support callus on the sole 114 and drive guide bar 113 and remove in guide pin bushing 112, guide bar 113 compression damping spring 111, and then carry out the shock attenuation to converter body 4, improve its placing process buffering stability.

EXAMPLE III

As shown in fig. 4, the utility model provides a high-voltage inverter for distribution system compares in embodiment one or embodiment two, and this embodiment still includes radiator unit 3, and radiator unit 3 includes intake duct 32 and mounting bracket 38, and intake duct 32 sets up at base 2 middle part, and one side sets up down radiator fan 33 in the intake duct 32, and mounting bracket 38 sets up at 4 tops of converter body, sets up radiator fan 36 in the mounting bracket 38, and intake duct 32 one end sets up kuppe 34, and mounting bracket 38 bottom sets up gas collecting channel 35.

In this embodiment, the upper heat dissipation fan 36 and the lower heat dissipation fan 33 are operated simultaneously, the lower heat dissipation fan 33 inputs the cold airflow into the air guide sleeve 34 through the air inlet channel 32, the air guide sleeve 34 conveys the cold airflow into the frequency converter body 4, the air collection sleeve 35 collects the hot airflow through the air collection sleeve 35, and the hot airflow is discharged through the upper heat dissipation fan 36, so that the convection fast heat dissipation is realized, and the heat dissipation effect is good.

The filter screen 31 is down set up to the intake duct 32 other end, and the top sets up filter screen 37 in the mounting bracket 38, can filter the air current, has improved the cleanliness factor of air current, has avoided the condition emergence that the dust got into in the converter body 4.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims

1. A high-voltage frequency converter for a power distribution system comprises a frequency converter body (4) and a control panel (5) arranged on one side surface of the frequency converter body (4), and is characterized in that a base (2) is arranged at the bottom of the frequency converter body (4), a moving assembly (1) is arranged on the side surface of the frequency converter body (4), and a heat dissipation assembly (3) is arranged at the top of the frequency converter body (4);

the movable assembly (1) comprises a first support frame (105) and a second support frame (109), the first support frame (105) and the second support frame (109) are symmetrically arranged on the surfaces of two sides of the frequency converter body (4), a first pulley (101) is arranged at the bottom of the first support frame (105), a second pulley (110) is arranged at the bottom of the second support frame (109), a first adjusting block (104) and a second adjusting block (107) are symmetrically arranged on two sides of the frequency converter body (4), one end of the first adjusting block (104) is slidably arranged in a first adjusting groove (103), one end of the second adjusting block (107) is slidably arranged in a second adjusting groove (106), the first adjusting groove (103) is arranged on one side surface of the first support frame (105), the second adjusting groove (106) is arranged on one side surface of the second support frame (109), and a first electric push rod (102) is arranged on one side surface in the first adjusting groove (103), piston rod one end and the first regulating block (104) of first electric putter (102) are connected, a side surface sets up second electric putter (108) in second adjustment tank (106), piston rod one end and the second regulating block (107) of second electric putter (108) are connected, base (2) edges and corners department sets up damper.

2. The high-voltage frequency converter for the power distribution system as claimed in claim 1, wherein the first electric push rod (102) and the second electric push rod (108) are electrically connected to the control panel (5) through a connection line, and the specifications of the first electric push rod (102) and the second electric push rod (108) are the same.

3. The high-voltage frequency converter for the power distribution system according to claim 1, wherein the damping component comprises a supporting foot pad (114), a guide rod (113) is arranged at the top of the supporting foot pad (114), the guide rod (113) is movably arranged in a guide sleeve (112), the guide sleeve (112) is embedded at a corner of the bottom of the base (2), a damping spring (111) is arranged on one side surface in the guide sleeve (112), and one end of the damping spring (111) is connected with the guide rod (113).

4. The high-voltage frequency converter for the power distribution system according to claim 1, wherein the heat dissipation assembly (3) comprises an air inlet (32) and a mounting frame (38), the air inlet (32) is arranged in the middle of the base (2), a lower heat dissipation fan (33) is arranged on one side in the air inlet (32), the mounting frame (38) is arranged at the top of the frequency converter body (4), and an upper heat dissipation fan (36) is arranged in the mounting frame (38).

5. The high-voltage frequency converter for the power distribution system according to claim 4, wherein a flow guide cover (34) is arranged at one end of the air inlet channel (32), and a gas collecting cover (35) is arranged at the bottom of the mounting rack (38).

6. The high-voltage frequency converter for the power distribution system according to claim 4, wherein a lower filter screen (31) is arranged at the other end of the air inlet (32), and an upper filter screen (37) is arranged at the inner top of the mounting rack (38).