阅读说明：本技术 一种高压变频调速装置 (High-voltage variable-frequency speed regulation device ) 是由 周国兵 陈倩 于 2020-06-18 设计创作，主要内容包括：本发明提供一种高压变频调速装置,涉及高压变频调速技术领域。该一种高压变频调速装置,包括高压变频调速外壳体和固定安装板,所述高压变频调速外壳体的后侧面开设有连接通孔,所述连接通孔的内部卡接有连接套,所述高压变频调速外壳体与固定安装板之间通过螺钉固定连接,所述高压变频调速外壳体的内底部固定连接有绝缘板,所述绝缘板的顶部固定连接有高压变频器。通过在高压变频调速外壳体的顶部设置有连接支撑杆和防尘顶盖结构,能够避免表面灰尘油污存留在高压变频调速外壳的顶部,通过在高压变频调速外壳体的侧面开设有散热孔结构、散热扇和防尘网结构,能够有效对装置进行散热。(The invention provides a high-voltage variable-frequency speed regulation device, and relates to the technical field of high-voltage variable-frequency speed regulation. This high-voltage variable frequency speed adjusting device, including high-voltage variable frequency speed adjusting shell body and fixed mounting board, connect the via hole has been seted up to the trailing flank of high-voltage variable frequency speed adjusting shell body, connect the inside joint of via hole has the adapter sleeve, through screw fixed connection between high-voltage variable frequency speed adjusting shell body and the fixed mounting board, the interior bottom fixedly connected with insulation board of high-voltage variable frequency speed adjusting shell body, the top fixedly connected with high-voltage inverter of insulation board. Be provided with joint support pole and dustproof top cap structure through the top at high-pressure variable frequency speed governing shell body, can avoid the surface dust greasy dirt to persist at the top of high-pressure variable frequency speed governing shell, through having seted up louvre structure, heat dissipation fan and dust screen structure in the side of high-pressure variable frequency speed governing shell body, can effectively dispel the heat to the device.)

1. The utility model provides a high-pressure variable frequency speed adjusting device, includes high-pressure variable frequency speed adjusting shell body (1) and fixed mounting panel (2), its characterized in that: the rear side face of the high-voltage variable-frequency speed regulation shell body (1) is provided with a connecting through hole (4), a connecting sleeve (5) is clamped in the connecting through hole (4), the high-voltage variable-frequency speed regulation shell body (1) is fixedly connected with a fixed mounting plate (2) through screws, an insulating plate (9) is fixedly connected to the inner bottom of the high-voltage variable-frequency speed regulation shell body (1), a high-voltage frequency converter (8) is fixedly connected to the top of the insulating plate (9), a first fixing plate (10) is fixedly connected to the inner part of the high-voltage variable-frequency speed regulation shell body (1) and positioned above the high-voltage frequency converter (8), a controller (11), a transformer (12) and a motor receiving end (13) are fixedly connected to the top of the first fixing plate (10), a second fixing plate (14) is fixedly connected to the inner part of the high-voltage variable-frequency, the top of the second fixed plate (14) is fixedly connected with a high-voltage circuit breaker (15) and a low-voltage circuit breaker (16), the top of the high-voltage variable-frequency speed-regulating outer shell (1) is fixedly connected with a connecting supporting rod (6), the top of the connecting support rod (6) is fixedly connected with a dustproof top cover (7), the front side surface of the high-voltage variable-frequency speed regulating outer shell (1) is hinged with a hinge door (23), a door lock (24) is arranged on the surface of the hinge door (23), a heat dissipation hole (22) is arranged on the side surface of the high-voltage variable-frequency speed regulating outer shell (1), a ventilation through hole (20) is arranged on the side surface of the high-voltage variable-frequency speed regulating outer shell (1) and the side surface of the heat dissipation hole (22), the inner side of the ventilation through hole (20) is fixedly connected with a dust screen (21) through a screw, and a heat dissipation fan (19) is arranged in the high-voltage variable-frequency speed regulation shell (1) and corresponds to the ventilation through hole (20).

2. The high-voltage variable-frequency speed regulation device according to claim 1, characterized in that: the adapter sleeve (5) includes first solid fixed ring (501) and the solid fixed ring of second (502), through go-between (503) fixed connection between first solid fixed ring (501) and the solid fixed ring of second (502), the lateral surface of go-between (503) is provided with spring (504), a plurality of anti-drop connecting strips (505) of the lateral surface fixedly connected with of first solid fixed ring (501), it is a plurality of anti-drop connecting strip (505) annular array arranges.

3. The high-voltage variable-frequency speed regulation device according to claim 2, characterized in that: the material of the connecting ring (503) is plastic, a plurality of axial reinforcing strips are embedded and connected inside the connecting ring (503), and two ends of the plurality of axial reinforcing strips are fixedly connected with the first fixing ring (501) and the second fixing ring (502).

4. The high-voltage variable-frequency speed regulation device according to claim 2, characterized in that: the outer surfaces of the first fixing ring (501) and the second fixing ring (502) are provided with insulating wrapping layers.

5. The high-voltage variable-frequency speed regulation device according to claim 1, characterized in that: the two ends of the first fixing plate (10) and the second fixing plate (14) are fixedly connected with fixing connecting plates (17), and the fixing connecting plates (17) are fixedly connected with the high-voltage variable-frequency speed regulation shell body (1) through set screws (18).

6. The high-voltage variable-frequency speed regulation device according to claim 1, characterized in that: the fixed mounting hole (3) has been seted up on the surface of fixed mounting panel (2), fixed mounting panel (2) pass through the shell fixed connection of screw and motor.

7. The high-voltage variable-frequency speed regulation device according to claim 1, characterized in that: the dustproof top cover (7) is composed of two inclined plates, and the tops of the two inclined plates are fixedly connected.

8. The high-voltage variable-frequency speed regulation device according to claim 1, characterized in that: high voltage circuit breaker (15) and transformer (12) electric connection, transformer (12) and low voltage circuit breaker (16) electric connection, low voltage circuit breaker (16) and controller (11) electric connection, controller (11) are tested the speed with the motor and are accepted end (13) and high-voltage inverter (8) electric connection, the output and the motor electric connection of high-voltage inverter (8).

Technical Field

The invention relates to the technical field of high-voltage variable-frequency speed regulation, in particular to a high-voltage variable-frequency speed regulation device.

Background

The basic principle of the frequency conversion speed regulation technology is that the purpose of changing the rotating speed of a motor is achieved by changing the frequency of a working power supply of a motor according to the direct proportion relation between the rotating speed of the motor and the input frequency of the working power supply, and a frequency converter generally comprises a rectifier, a filter, a driving circuit, a protection circuit, a controller and the like. Firstly, a single-phase or three-phase alternating current power supply passes through a rectifier and is filtered by a capacitor to form direct current voltage with basically fixed amplitude, the direct current voltage is applied to an inverter, and the output end of the inverter obtains a known pulse waveform with a certain shape by utilizing the on-off control of a power element of the inverter. The voltage amplitude of the rectangular pulse is controlled by changing the height of the rectangular pulse; the output frequency is controlled by changing the modulation period, so that the output voltage and the frequency are controlled on the inverter at the same time, and the requirement of the speed regulation of the frequency converter on the coordination control is met.

The high-voltage variable-frequency speed regulation device is connected with the motor, the working environment of the motor is poor, and the motor can generate great vibration when working, so that necessary dustproof measures and shock absorption measures are required to prolong the service life of the high-voltage variable-frequency speed regulation device.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a high-voltage variable-frequency speed regulating device, which solves the problems that the high-voltage variable-frequency speed regulating device is connected with a motor, the working environment of the motor is poor, the motor can generate great vibration when working, and the service life of the high-voltage variable-frequency speed regulating device is shortened.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a high-voltage variable-frequency speed regulation device comprises a high-voltage variable-frequency speed regulation shell and a fixed mounting plate, wherein a connecting through hole is formed in the rear side surface of the high-voltage variable-frequency speed regulation shell, a connecting sleeve is clamped inside the connecting through hole, the high-voltage variable-frequency speed regulation shell is fixedly connected with the fixed mounting plate through screws, an insulating plate is fixedly connected to the inner bottom of the high-voltage variable-frequency speed regulation shell, a high-voltage frequency converter is fixedly connected to the top of the insulating plate, a first fixing plate is fixedly connected to the inside of the high-voltage variable-frequency speed regulation shell and positioned above the high-voltage frequency converter, a controller, a transformer and a motor speed measurement receiving end are fixedly connected to the top of the first fixing plate, a second fixing plate is fixedly connected to the inside of the high-voltage variable-frequency speed, the utility model discloses a high pressure Variable Frequency Speed Governing (VFSG) shell body, including high pressure Variable Frequency Speed Governing (VFSG) shell body, the top fixedly connected with joint support pole of high pressure Variable Frequency Speed Governing (VFSG) shell body, the dustproof top cap of top fixedly connected with of joint support pole, the leading flank hinge connection of high pressure Variable Frequency Speed Governing (VFSG) shell body has the hinge door, the surface of hinge door is provided with the lock, the louvre has been seted up to the side of high pressure Variable Frequency Speed Governing (VFSG) shell body, the ventilative through-hole has just been located the side of louvre and has been seted up to the side of high pressure.

Preferably, the adapter sleeve includes first solid fixed ring and the solid fixed ring of second, through go-between fixed ring fixed connection between first solid fixed ring and the solid fixed ring of second, the lateral surface of go-between is provided with the spring, a plurality of anti-drop connecting strips of first solid fixed ring's lateral surface fixedly connected with, it is a plurality of anti-drop connecting strip annular array arranges.

Preferably, the connecting ring is made of plastic, a plurality of axial reinforcing strips are embedded and connected in the connecting ring, and two ends of the plurality of axial reinforcing strips are fixedly connected with the first fixing ring and the second fixing ring.

Preferably, the outer surfaces of the first fixing ring and the second fixing ring are provided with insulating wrapping layers.

Preferably, the two ends of the first fixing plate and the second fixing plate are fixedly connected with a fixed connecting plate, and the fixed connecting plate is fixedly connected with the high-voltage variable-frequency speed regulation shell through a set screw.

Preferably, the fixed mounting plate is provided with a fixed mounting hole on the surface, and is fixedly connected with the shell of the motor through a screw.

Preferably, the dustproof top cover consists of two inclined plates, and the tops of the two inclined plates are fixedly connected.

Preferably, high voltage circuit breaker and transformer electric connection, transformer and low voltage circuit breaker electric connection, low voltage circuit breaker and controller electric connection, the controller tests the speed with the motor and receives end and high voltage inverter electric connection, high voltage inverter's output and motor electric connection.

The working principle is as follows: during the installation, carry out fixed connection through the screw to the shell of fixed mounting panel 2 and motor earlier, then through inside connecting hole 4 and the adapter sleeve 5 structure that sets up, through the screw high-voltage frequency conversion speed governing shell body 1 fixed connection on fixed mounting panel 2, during the use, carry out the vary voltage through high-voltage inverter 8, realize the speed governing, the rotational speed of motor detects through the speed sensor, utilize the motor to measure the speed and accept end 13 and feed back to controller 11, control high-voltage inverter 8, in order to realize accurate stepless speed governing.

(III) advantageous effects

The invention provides a high-voltage variable-frequency speed regulating device. The method has the following beneficial effects:

1. be provided with joint support pole and dustproof top cap structure through the top at high-pressure variable frequency speed governing shell body, can avoid the surface dust greasy dirt to persist the top at high-pressure variable frequency speed governing shell, avoid producing the corruption to the device, and the greasy dirt is many still causes circuit failure easily, through seted up the louvre structure in the side of high-pressure variable frequency speed governing shell body, heat dissipation fan and dust screen structure, can effectively dispel the heat to the device, guarantee the normal work of inner member, and can also avoid the dust to enter into inside the device, reduce device's life.

2. Through adopting the fixed mounting plate structural connection high pressure variable frequency speed governing shell body, can install fast, be provided with the adapter sleeve structure that has the cushioning effect in the department of installation, can play buffering cushioning effect at the position of connecting, avoid the vibrations of motor to the device's influence.

3. Through installing high-voltage inverter on the insulation board, can carry out effectual protection to the device, avoid the electric leakage.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting structure of the present invention;

fig. 3 is a schematic structural view of the connecting sleeve of the present invention;

FIG. 4 is a left side view of the present invention;

fig. 5 is a speed regulation principle diagram of the invention.

Wherein, 1, a high-voltage frequency-conversion speed-regulation outer shell; 2. fixing the mounting plate; 3. fixing the mounting hole; 4. a connecting through hole; 5. connecting sleeves; 501. a first retaining ring; 502. a second retaining ring; 503. a connecting ring; 504. a spring; 505. an anti-drop connecting strip; 6. connecting the supporting rods; 7. a dust-proof top cover; 8. a high voltage frequency converter; 9. an insulating plate; 10. a first fixing plate; 11. a controller; 12. a transformer; 13. a motor speed measuring receiving end; 14. a second fixing plate; 15. a high voltage circuit breaker; 16. a low-voltage circuit breaker; 17. fixing the connecting plate; 18. tightening the screw; 19. a heat dissipation fan; 20. a ventilation through hole; 21. a dust screen; 22. heat dissipation holes; 23. a hinge door; 24. a door lock is provided.

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.

As shown in FIGS. 1 to 5, an embodiment of the invention provides a high-voltage variable-frequency speed regulation device, which comprises a high-voltage variable-frequency speed regulation shell 1 and a fixed mounting plate 2, wherein a connecting through hole 4 is formed in the rear side surface of the high-voltage variable-frequency speed regulation shell 1, a connecting sleeve 5 is clamped inside the connecting through hole 4, the connecting sleeve 5 is used for buffering and anti-seismic action, the high-voltage variable-frequency speed regulation shell 1 is fixedly connected with the fixed mounting plate 2 through a screw, an insulating plate 9 is fixedly connected to the inner bottom of the high-voltage variable-frequency speed regulation shell 1, the high-voltage frequency converter 8 is prevented from electric leakage and affecting the device, a high-voltage frequency converter 8 is fixedly connected to the top of the insulating plate 9 and used for variable-frequency and pressure regulation and realizing a stepless control motor, a first fixing plate 10 is fixedly connected to the inside of, A transformer 12 and a motor speed measuring receiving end 13 for controlling the signal output of the high-voltage frequency converter 8, a second fixing plate 14 is fixedly connected inside the high-voltage variable-frequency speed regulating outer shell 1 and above the first fixing plate 10, a high-voltage circuit breaker 15 and a low-voltage circuit breaker 16 are fixedly connected on the top of the second fixing plate 14, a connecting support rod 6 is fixedly connected on the top of the high-voltage variable-frequency speed regulating outer shell 1, a dustproof top cover 7 is fixedly connected on the top of the connecting support rod 6 to prevent oil stain and dust from accumulating on the top of the device, a hinge door 23 is hinged on the front side surface of the high-voltage variable-frequency speed regulating outer shell 1 to facilitate installation and maintenance of internal electrical components, a door lock 24 is arranged on the surface of the hinge door 23, a heat dissipation hole 22 is arranged on the side surface of the high-voltage variable-frequency speed, the inner side of the ventilation through hole 20 is fixedly connected with a dustproof net 21 through a screw, and a heat dissipation fan 19 is arranged in the high-voltage variable-frequency speed regulation shell body 1 and corresponds to the ventilation through hole 20, so that the functions of heat dissipation and dust prevention are achieved.

The connecting sleeve 5 comprises a first fixing ring 501 and a second fixing ring 502, the first fixing ring 501 and the second fixing ring 502 are fixedly connected through a connecting ring 503, the outer side surface of the connecting ring 503 is provided with a spring 504 which plays a role in buffering and shock resistance, the outer side surface of the first fixing ring 501 is fixedly connected with a plurality of anti-falling connecting strips 505, the anti-falling connecting strips 505 are arranged in an annular array manner to avoid the connecting sleeve 5 from being separated from a connecting through hole 4, the connecting ring 503 is made of plastic, a plurality of axial reinforcing strips are embedded and connected inside the connecting ring 503, two ends of the axial reinforcing strips are fixedly connected with the first fixing ring 501 and the second fixing ring 502, the outer surfaces of the first fixing ring 501 and the second fixing ring 502 are respectively provided with an insulating wrapping layer to avoid the leakage of electricity of the device from being transmitted to a motor shell, and the two ends of the first fixing plate 10, fixed connection board 17 and high-voltage variable frequency speed regulation shell body 1 between through set screw 18 fixed connection, fixed mounting hole 3 has been seted up on fixed mounting panel 2's surface, be convenient for install fixed mounting panel 2, fixed mounting panel 2 passes through the shell fixed connection of screw and motor, dustproof top cap 7 comprises two swash plates, two swash plate top fixed connection, avoid the accumulation of dust and greasy dirt, high voltage circuit breaker 15 and transformer 12 electric connection, transformer 12 and low voltage circuit breaker 16 electric connection, low voltage circuit breaker 16 and controller 11 electric connection, controller 11 and motor speed measurement receiving terminal 13 and 8 electric connection of high voltage inverter, 8 output and the motor electric connection of high voltage inverter.

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.