CN217307528U - High-voltage frequency converter for power distribution system - Google Patents

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

A high-voltage inverter for power distribution system

technical field

The utility model relates to the technical field of frequency converters, in particular to a high-voltage frequency converter for power distribution systems.

Background technique

With the rapid development of modern power electronic technology and microelectronics technology, high-voltage and high-power variable frequency speed control devices are constantly maturing. Generally speaking, the conversion efficiency of the inverter is generally 97% to 98%, which means that 2% to 3% of the electrical energy is converted into heat energy, which is far greater than the heat generated by general switches, AC contactors and other electrical appliances. The inverter cabinet is generally equipped with circuit breakers, fuses, input reactors, input filters, inverters, output filters, input reactors, etc., so that the failure rate of the inverter increases exponentially with the increase of temperature. Lifetime decreases exponentially with increasing temperature.

For example, a high-voltage frequency converter for a power distribution system disclosed by a utility model with an authorization announcement number of CN214707543U includes a transformer cabinet, a power unit cabinet, a control cabinet and an operation interface. The transformer cabinets are sequentially arranged from left to right, and the operation The interface is located on the outer surface of the control cabinet, the top of the transformer cabinet, the power unit cabinet and the control cabinet is fixedly installed with a dustproof plate, and the outer surface of the dustproof plate is fixedly installed with air outlet pipes, and the number of the air outlet pipes is fixed. For three, it is impossible to move the device quickly, the moving operation is inconvenient, and the heat dissipation effect is not good, which affects the stability of use.

Utility model content

In order to solve the technical problems existing in the background technology, the utility model proposes a high-voltage frequency converter for power distribution system, which includes a frequency converter body and a control panel arranged on one side surface of the frequency converter body, and the bottom of the frequency converter body is provided with a base, A moving component is arranged on the side of the frequency converter body, and a heat dissipation component is arranged on the top of the frequency converter body;

The moving assembly includes a first support frame and a second support frame, the first support frame and the second support frame are symmetrically arranged on both sides of the inverter body, and 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 adjustment block and a second adjustment block are arranged symmetrically on both sides of the inverter body, and one end of the first adjustment block is slidably arranged in the first adjustment groove, and the second adjustment block One end is slidably arranged in the second adjustment groove, the first adjustment groove is opened on the side surface of the first support frame, the second adjustment groove is opened on the side surface of the second support frame, and a The side surface is provided with a first electric push rod, one end of the piston rod of the first electric push rod is connected with the first adjustment block, the inner side surface of the second adjustment groove is provided with a second electric push rod, the second electric push rod One end of the piston rod of the rod is connected with the second adjusting block, and a shock absorbing component is arranged at the corner of the base.

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

Preferably, the shock absorbing assembly includes a support foot pad, a guide rod is arranged on the top of the support foot pad, the guide rod is movably arranged in a guide sleeve, the guide sleeve is inlaid at the bottom corner of the base, and the guide sleeve A shock-absorbing spring is arranged on the inner side surface, and one end of the shock-absorbing spring is connected with the guide rod.

Preferably, the heat dissipation assembly includes an air inlet channel and a mounting frame, the air inlet channel is arranged in the middle of the base, a lower cooling fan is arranged on one side of the air inlet channel, the installation frame is arranged on the top of the inverter body, and the An upper cooling fan is arranged in the installation frame.

Preferably, one end of the air inlet is provided with a shroud, and the bottom of the mounting frame is provided with a gas collecting hood.

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

Compared with the prior art, the above-mentioned technical scheme of the present utility model has the following beneficial technical effects:

1. The utility model can lift the inverter body through the operation of the first electric push rod and the second electric push rod, move the inverter body through the first pulley and the second pulley, and realize the inverter body. The quick-moving installation function of the main body.

2. The utility model can quickly discharge the heat in the inverter body through the arrangement of the heat dissipation components, improve the heat dissipation efficiency, and ensure the running stability of the inverter body.

Description of drawings

1 is a schematic structural diagram of a high-voltage frequency converter for a power distribution system according to Embodiment 1;

Fig. 2 is the front view sectional structure schematic diagram of the moving component in the high-voltage frequency converter used in the power distribution system;

Fig. 3 is a partial enlarged structural schematic diagram at A of Fig. 2;

FIG. 4 is a schematic cross-sectional structural diagram of a heat dissipation component in a right side view of a high-voltage inverter used in a power distribution system.

Reference numerals: 1. Mobile component; 2. Base; 3. Cooling component; 4. Inverter body; 5. Control panel; 31. Lower filter screen; 32. Air inlet; 33. Lower cooling fan; flow hood; 35, air collecting hood; 36, upper cooling fan; 37, upper filter screen; 38, mounting frame; 101, first pulley; 102, first electric push rod; 103, first adjustment groove; 104, first 105, the first support frame; 106, the second adjustment groove; 107, the second adjustment block; 108, the second electric push rod; 109, the second support frame; 110, the second pulley; 111, the shock absorption Spring; 112, guide sleeve; 113, guide rod; 114, support foot pad.

Detailed ways

Example 1

As shown in Figures 1-2, a high-voltage frequency converter for a power distribution system proposed by the present utility model includes a frequency converter body 4 and a control panel 5 arranged on one side surface of the frequency converter body 4. The bottom of the frequency converter body 4 is provided with a base 2. The moving component 1 is arranged on the side of the inverter body 4, and the heat dissipation component 3 is arranged on the top of the inverter body 4;

The moving assembly 1 includes 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 both sides of the inverter body 4, and a first pulley 101 is arranged at the bottom of the first support frame 105. The bottom of the second support frame 109 is provided with a second pulley 110 , and the inverter body 4 is provided with a first adjustment block 104 and a second adjustment block 107 symmetrically on both sides. One end of the block 107 is slidably arranged in the second adjustment groove 106 , the first adjustment groove 103 is opened on the side surface of the first support frame 105 , the second adjustment groove 106 is opened on the side surface of the second support frame 109 , the first adjustment groove 103 A first electric push rod 102 is set on the inner surface of the first electric push rod 102, and one end of the piston rod of the first electric push rod 102 is connected with the first adjustment block 104. The inner surface of the second adjustment groove 106 is provided with a second electric push rod 108. One end of the piston rod of the push rod 108 is connected to the second adjustment block 107, and a shock absorber assembly is arranged at the corner of the base 2. The first electric push rod 102 and the second electric push rod 108 are electrically connected to the control panel 5 through connecting wires. The first electric push rod 102 has the same specifications as the second electric push rod 108 .

In this embodiment, when the inverter body 4 needs to be moved, the first electric push rod 102 and the second electric push rod 108 are operated, and the first electric push rod 102 and the second electric push rod 108 drive the first adjustment block 104 and the second electric push rod 108. Two adjustment blocks 107, the first adjustment block 104 and the second adjustment block 107 drive the inverter body 4 to move, and then lift the inverter body 4, and then move the device through the first pulley 101 and the second pulley 110. When reaching the installation position, the first electric push rod 102 and the second electric push rod 108 shrink, and then the inverter body 4 is attached to the ground and fixed.

Embodiment 2

As shown in FIG. 3 , a high-voltage frequency converter for a power distribution system proposed by the present invention, compared with the first embodiment, the present embodiment further includes a shock absorbing component, and the shock absorbing component includes a support foot pad 114 , and the support foot pad 114 A guide rod 113 is arranged at the top, the guide rod 113 is movably arranged in the guide sleeve 112, the guide sleeve 112 is embedded in the corners of the bottom of the base 2, and a shock-absorbing spring 111 is arranged on the inner surface of the guide sleeve 112, and one end of the shock-absorbing spring 111 is connected to the guide rod. 113 connections.

In this embodiment, when the inverter body 4 is lowered, the support foot pad 114 contacts the ground, the support foot pad 114 drives the guide rod 113 to move in the guide sleeve 112 , and the guide rod 113 compresses the shock-absorbing spring 111 , which in turn causes the inverter to move. The body 4 performs shock absorption to improve the cushioning stability during its placement.

Embodiment 3

As shown in FIG. 4 , compared with Embodiment 1 or Embodiment 2, a high-voltage inverter for a power distribution system proposed by the present invention further includes a heat dissipation assembly 3 , and the heat dissipation assembly 3 includes an air inlet 32 and The installation frame 38, the air inlet 32 is arranged in the middle of the base 2, the lower cooling fan 33 is arranged on one side of the air inlet 32, the installation frame 38 is arranged on the top of the inverter body 4, the cooling fan 36 is arranged in the installation frame 38, and the air intake One end of the channel 32 is provided with a diversion cover 34 , and a gas collecting cover 35 is provided at the bottom of the mounting frame 38 .

In the present embodiment, the upper cooling fan 36 and the lower cooling fan 33 are operated simultaneously, the lower cooling fan 33 inputs the cold air through the air inlet 32 to the shroud 34 , and the shroud 34 delivers the cold air into the inverter body 4 At the same time, the air collecting hood 35 collects the hot air flow through the air collecting hood 35, and then discharges the hot air flow through the upper cooling fan 36, so as to realize the rapid heat dissipation by convection, and the heat dissipation effect is good.

The other end of the air intake duct 32 is provided with a lower filter screen 31, and the top of the mounting frame 38 is provided with an upper filter screen 37, which can filter the airflow, improve the cleanliness of the airflow, and prevent dust from entering the inverter body 4.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited thereto. make various changes.

Claims (6)

1. A high-voltage frequency converter for a power distribution system, comprising a frequency converter body (4) and a control panel (5) arranged on one surface of the frequency converter body (4), characterized in that the frequency converter body (4) A base (2) is arranged at the bottom, a moving component (1) is arranged on the side of the frequency converter body (4), and a heat dissipation component (3) is arranged on the top of the frequency converter body (4); The moving assembly (1) includes a first support frame (105) and a second support frame (109), and the first support frame (105) and the second support frame (109) are symmetrically arranged on the inverter body (4) On both side surfaces, a first pulley (101) is set at the bottom of the first support frame (105), a second pulley (110) is set at the bottom of the second support frame (109), and both sides of the inverter body (4) A first adjustment block (104) and a second adjustment block (107) are symmetrically arranged, one end of the first adjustment block (104) is slidably arranged in the first adjustment groove (103), and one end of the second adjustment block (107) is slid is arranged in the second adjustment groove (106), the first adjustment groove (103) is opened on one side surface of the first support frame (105), and the second adjustment groove (106) is opened in the second support frame (109) ) side surface, the inner side surface of the first adjustment groove (103) is provided with a first electric push rod (102), one end of the piston rod of the first electric push rod (102) and the first adjustment block (104) connection, a second electric push rod (108) is arranged on the inner surface of the second adjustment groove (106), and one end of the piston rod of the second electric push rod (108) is connected with the second adjustment block (107), so The shock absorbing components are arranged at the edges and corners of the base (2). 2. The high-voltage frequency converter for a power distribution system according to claim 1, wherein the first electric push rod (102) and the second electric push rod (108) are connected to a control panel ( 5) Electrical connection, 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 power distribution system according to claim 1 , wherein the shock absorbing component comprises a support foot pad ( 114 ), and a guide rod ( 113 ) is provided on the top of the support foot pad ( 114 ). 4 . ), the guide rod (113) is movably arranged in the guide sleeve (112), the guide sleeve (112) is inlaid at the bottom edge of the base (2), and the inner surface of the guide sleeve (112) is provided with a reduced A shock spring (111), one end of the shock spring (111) is connected with the guide rod (113). 4. The high-voltage inverter for a power distribution system according to claim 1, wherein the heat dissipation component (3) comprises an air inlet (32) and a mounting bracket (38), and the air inlet ( 32) is arranged in the middle of the base (2), a lower cooling fan (33) is arranged on the inner side of the air inlet duct (32), the mounting bracket (38) is arranged on the top of the frequency converter body (4), and the mounting bracket An upper cooling fan (36) is arranged in (38). 5. A high-voltage frequency converter for a power distribution system according to claim 4, characterized in that, a shroud (34) is provided at one end of the air inlet passage (32), and a collection frame (38) is provided at the bottom of the mounting frame (38). Air hood (35). 6 . The high-voltage inverter for power distribution system according to claim 4 , wherein a lower filter screen ( 31 ) is arranged at the other end of the air inlet duct ( 32 ), and the inner top of the mounting frame ( 38 ) is at the top. 7 . Set the upper filter (37).

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