CN220382968U - Medium-voltage alternating-current frequency converter - Google Patents
Medium-voltage alternating-current frequency converter Download PDFInfo
- Publication number
- CN220382968U CN220382968U CN202321455041.0U CN202321455041U CN220382968U CN 220382968 U CN220382968 U CN 220382968U CN 202321455041 U CN202321455041 U CN 202321455041U CN 220382968 U CN220382968 U CN 220382968U
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- frequency converter
- air inlet
- box body
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 29
- 230000001360 synchronised effect Effects 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The utility model discloses a medium-voltage alternating current frequency converter, which comprises a frequency converter box body and a group of air inlet pipelines fixedly inserted at two sides of the bottom of the frequency converter box body, wherein a heat dissipation mechanism is arranged in the frequency converter box body, the air inlet mechanism is arranged in the group of air inlet pipelines, the heat dissipation mechanism comprises a mounting shell, a driving motor, a driving gear, a group of rotating shafts, a group of first connecting rods, a group of second connecting rods, a group of swing rods and a group of heat dissipation fans, and the air inlet mechanism comprises a group of synchronous cylinders, a group of pushing plates, a group of fixed sliding rails, a group of sliding racks, a plurality of rotating shafts and a plurality of air inlet baffles. The utility model has the beneficial effects that the heat dissipation fan is adopted to swing reciprocally, so as to fully dissipate heat of the elements in the box body of the frequency converter, improve the heat dissipation area and the heat dissipation effect, and when the frequency converter is not used, the air inlet pipeline is driven by the air inlet pipeline to be closed automatically by the air inlet pipeline, thereby preventing external dust from entering the box body of the frequency converter to damage the elements and prolonging the service life of the frequency converter.
Description
Technical Field
The utility model relates to the field of alternating current frequency converters, in particular to a medium-voltage alternating current frequency converter.
Background
The AC frequency converter is a speed regulating device with adjustable output voltage and frequency. The ac-type frequency converter is in fact an inverter. Firstly, alternating current is changed into direct current, and then the direct current is switched by an electronic element to be changed into alternating current. The controllable silicon for AC frequency converter with high power has one frequency regulator to regulate the frequency in certain range and to control the rotation number of motor to regulate the rotation number in certain range.
The application number is CN202121128611.6 in the current patent discloses a middling pressure AC frequency converter, through the cooperation between brush, converter box body, movable block, the dwang, has reached the effect of the reciprocal light brush of back and forth of hole department at the ventilation hole of converter box body of brush, has reduced the damage of high temperature to the converter box body, has prolonged the life of converter box. However, the frequency converter box body cannot be effectively cleaned and cooled by adopting a single brush cleaning mode, the heat radiating area of the existing heat radiating fan is small, the elements inside the frequency converter box body cannot be sufficiently radiated, and impurities such as external dust and the like easily enter the frequency converter box body, so that the service life of the frequency converter is influenced.
The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.
Disclosure of Invention
Aiming at the defects, the utility model provides a medium-voltage alternating-current frequency converter to solve the problem of heat dissipation of the medium-voltage alternating-current frequency converter.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the medium-voltage alternating current frequency converter comprises a frequency converter box body and a group of air inlet pipelines fixedly inserted at two sides of the bottom of the frequency converter box body, wherein a heat dissipation mechanism is arranged in the frequency converter box body, and an air inlet mechanism is arranged in the group of air inlet pipelines;
the heat dissipation mechanism comprises a mounting shell, a driving motor, a driving gear, a group of rotating shafts, a group of first connecting rods, a group of second connecting rods, a group of swing rods and a group of heat dissipation fans, wherein the mounting shell is mounted at the upper rear end of the frequency converter box body, the driving motor is horizontally mounted at the center of the rear end in the mounting shell, the driving gear is mounted at the rotating end of the driving motor, the group of rotating shafts are movably inserted at the two sides of the rear end of the frequency converter box body, the group of first connecting rods are mounted at the front end of the group of rotating shafts, the group of second connecting rods are movably hinged at the front end of the group of connecting rods, the bottom of the group of swing rods are movably hinged in the frequency converter box body and are respectively movably hinged with the opposite second connecting rods, and the group of heat dissipation fans are mounted at the upper ends of the group of swing rods.
Further, the air inlet mechanism comprises a group of synchronous cylinders, a group of pushing plates, a group of fixed sliding rails, a group of sliding racks, a plurality of rotating shafts and a plurality of air inlet baffles, wherein the group of synchronous cylinders are arranged at the front end of a group of air inlet pipelines, the telescopic end of the synchronous cylinders is vertically upwards, the group of pushing plates are arranged at the telescopic end of the group of synchronous cylinders, the group of fixed sliding rails are arranged at the front end of the group of air inlet pipelines and are positioned at one side of the group of synchronous cylinders, the group of sliding racks are slidably arranged on the group of fixed sliding rails, the upper ends of the sliding racks are connected with the group of pushing plates, the plurality of rotating shafts are movably inserted into the group of air inlet pipelines, and the plurality of air inlet baffles are arranged on the plurality of rotating shafts.
Further, the front ends of the rotating shafts are respectively provided with a transmission gear meshed with the sliding racks.
Further, driven gears meshed with the driving gears are respectively arranged at the rear ends of the rotating shafts.
Further, a temperature sensor is arranged on the inner wall of one side of the frequency converter box body.
Further, a group of fan-shaped air outlets opposite to the heat dissipation fan are formed in the rear surface of the frequency converter box body, the first impurity filter screens are respectively arranged in the group of fan-shaped air outlets, and the second impurity filter screens are respectively arranged in the group of air inlet pipelines.
The utility model provides a medium-voltage alternating current frequency converter, which has the advantages that a temperature sensor positioned in a frequency converter box body can monitor temperature signals in the frequency converter box body in real time, when the temperature is too high, a group of synchronous air cylinders firstly drive a group of air inlet pipelines to be automatically opened, and meanwhile, a group of swinging rods drive a group of heat dissipation fans to swing reciprocally, so that elements in the frequency converter box body can be fully cooled, the heat dissipation area and the heat dissipation effect can be improved, and an impurity filter screen can filter impurities in air entering the frequency converter box body; when the temperature is lower, a group of synchronous cylinders drive a group of air inlet pipelines to be automatically closed, so that external dust can be prevented from entering the box body of the frequency converter to damage elements, and the service life of the frequency converter is prolonged.
Drawings
Fig. 1 is a schematic diagram of a medium voltage ac frequency converter according to the present utility model.
Fig. 2 is a schematic view of an air intake duct according to the present utility model.
Fig. 3 is a schematic view of an air intake baffle according to the present utility model.
Fig. 4 is a rear view of a medium voltage ac frequency converter according to the present utility model.
Fig. 5 is a cross-sectional view of the mounting housing of the present utility model.
In the figure: 1. a frequency converter box; 2. an air inlet pipeline; 3. a mounting shell; 4. a driving motor; 5. a drive gear; 6. a rotating shaft; 7. a first connecting rod; 8. a second connecting rod; 9. a swinging rod; 10. a heat radiation fan; 11. a synchronous cylinder; 12. a pushing plate; 13. fixing the sliding rail; 14. sliding racks; 15. a rotating shaft; 16. an air inlet baffle; 17. a transmission gear; 18. a driven gear; 19. a temperature sensor; 20. a fan-shaped air outlet; 21. impurity filter screen I; 22. impurity filter screen II.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings, as shown in fig. 1-5: the medium-voltage alternating current frequency converter comprises a frequency converter box body 1 and a group of air inlet pipelines 2 fixedly inserted at two sides of the bottom of the frequency converter box body 1, wherein a heat dissipation mechanism is arranged in the frequency converter box body 1, and an air inlet mechanism is arranged in the group of air inlet pipelines 2; the heat dissipation mechanism comprises a mounting shell 3, a driving motor 4, a driving gear 5, a group of rotating shafts 6, a group of first connecting rods 7, a group of second connecting rods 8, a group of swinging rods 9 and a group of heat dissipation fans 10, wherein the mounting shell 3 is mounted at the upper rear end of the frequency converter box body 1, the driving motor 4 is horizontally mounted at the center of the rear end in the mounting shell 3, the driving gear 5 is mounted at the rotating end of the driving motor 4, the group of rotating shafts 6 are movably inserted at two sides of the rear end of the frequency converter box body 1, the group of first connecting rods 7 are mounted at the front end of the group of rotating shafts 6, the group of second connecting rods 8 are movably hinged at the front end of the group of first connecting rods 7, the bottoms of the group of swinging rods 9 are movably hinged in the frequency converter box body 1 and are respectively movably hinged with the opposite second connecting rods 8, and the group of heat dissipation fans 10 are mounted at the upper ends of the group of swinging rods 9; the air inlet mechanism comprises a group of synchronous air cylinders 11, a group of pushing plates 12, a group of fixed sliding rails 13, a group of sliding racks 14, a plurality of rotating shafts 15 and a plurality of air inlet baffles 16, wherein the group of synchronous air cylinders 11 are arranged at the front end of the group of air inlet pipelines 2, the telescopic ends of the group of synchronous air cylinders 11 are vertically upwards, the group of pushing plates 12 are arranged on the telescopic ends of the group of synchronous air cylinders 11, the group of fixed sliding rails 13 are arranged at the front end of the group of air inlet pipelines 2 and are positioned at one side of the group of synchronous air cylinders 11, the group of sliding racks 14 are slidably arranged on the group of fixed sliding rails 13, the upper ends of the sliding racks are connected with the group of pushing plates 12, the plurality of rotating shafts 15 are movably inserted into the group of air inlet pipelines 2, and the plurality of air inlet baffles 16 are arranged on the plurality of rotating shafts 15; the front ends of the rotating shafts 15 are respectively provided with a transmission gear 17 meshed with the sliding racks 14; the rear ends of the group of rotating shafts 6 are respectively provided with driven gears 18 which are meshed with the driving gears 5; a temperature sensor 19 is arranged on the inner wall of one side of the frequency converter box body 1; the rear surface of the frequency converter box body 1 is provided with a group of fan-shaped air outlets 20 opposite to the heat radiation fan 10, the group of fan-shaped air outlets 20 are respectively provided with an impurity filter screen I21, and the group of air inlet pipelines 2 are respectively provided with an impurity filter screen II 22.
The working principle of the embodiment is as follows: the electric equipment used by the device is controlled by an external controller, a temperature sensor 19 is arranged on the inner wall of one side of the frequency converter box body 1, and the temperature sensor 19 is used for monitoring temperature signals in the frequency converter box body 1 in real time;
when heat dissipation is carried out: the synchronous cylinder 11 is arranged at the front end of the air inlet pipeline 2, the telescopic end is vertically upwards, the pushing plate 12 is arranged on the telescopic end of the synchronous cylinder 11, the fixed sliding rail 13 is arranged at the front end of the air inlet pipeline 2 and is positioned at one side of the synchronous cylinder 11, the sliding rack 14 is slidably arranged on the fixed sliding rail 13, the upper end of the sliding rack 14 is connected with the pushing plate 12, the rotating shafts 15 are movably inserted into the air inlet pipeline 2 through fastening bearings, the air inlet baffles 16 are arranged on the rotating shafts 15, the front ends of the rotating shafts 15 are respectively provided with a transmission gear 17 meshed with the sliding rack 14, as shown in fig. 2 and 3, the telescopic end of the synchronous cylinder 11 is firstly stretched, and the sliding rack 14 drives the air inlet baffles 16 on the rotating shafts 15 to deflect, at the moment, the air inlet pipeline 2 is opened;
the installation shell 3 is arranged at the upper rear end of the frequency converter box body 1, the driving motor 4 is horizontally arranged at the center of the rear end in the installation shell 3, the driving gear 5 is arranged on the rotating end of the driving motor 4, a group of rotating shafts 6 are movably inserted at two sides of the rear end of the frequency converter box body 1 through fastening bearings, a group of connecting rods I7 are arranged at the front end of the group of rotating shafts 6, a group of connecting rods II 8 are movably hinged at the front end of the group of connecting rods I7, the bottom of the group of swinging rods 9 are movably hinged in the frequency converter box body 1 and are respectively movably hinged with the opposite connecting rods II 8, a group of heat dissipation fans 10 are arranged at the upper end of the group of swinging rods 9, driven gears 18 meshed with the driving gear 5 are respectively arranged at the rear ends of the group of the rotating shafts 6, as shown in figures 1 and 5, the driving motor 4 starts to work simultaneously to drive the group of rotating shafts 6 to rotate synchronously, the rotating shaft 6 drives the heat dissipation fan 10 to swing reciprocally through the connecting rod 7, the connecting rod 8 and the swinging rod 9, so that the heat dissipation area and the heat dissipation effect are improved, a fan-shaped air outlet 20 opposite to the heat dissipation fan 10 is formed in the rear surface of the frequency converter box 1, an impurity filter screen 21 is respectively arranged in the fan-shaped air outlet 20, an impurity filter screen 22 is respectively arranged in the air inlet pipeline 2, impurities in air entering the frequency converter box 1 can be filtered through the impurity filter screen, and when the temperature is low, the air inlet pipeline 2 is automatically closed through the synchronizing cylinder 11, so that external dust can be prevented from damaging the elements in the frequency converter box 1, and the service life of the frequency converter is prolonged.
The above technical solution only represents the preferred technical solution of the present utility model, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present utility model, and the technical solution falls within the scope of the present utility model.
Claims (6)
1. The medium-voltage alternating-current frequency converter comprises a frequency converter box body (1) and a group of air inlet pipelines (2) fixedly inserted at two sides of the bottom of the frequency converter box body (1), and is characterized in that a heat dissipation mechanism is arranged in the frequency converter box body (1), and an air inlet mechanism is arranged in the group of air inlet pipelines (2);
the heat dissipation mechanism comprises a mounting shell (3), a driving motor (4), a driving gear (5), a group of rotating shafts (6), a group of first connecting rods (7), a group of second connecting rods (8), a group of swing rods (9) and a group of heat dissipation fans (10), wherein the mounting shell (3) is mounted at the upper rear end of the frequency converter box body (1), the driving motor (4) is horizontally mounted at the center of the rear end in the mounting shell (3), the driving gear (5) is mounted at the rotating end of the driving motor (4), the group of rotating shafts (6) are movably inserted at the two sides of the rear end of the frequency converter box body (1), the group of first connecting rods (7) are mounted at the front end of the group of rotating shafts (6), the group of second connecting rods (8) are movably hinged at the front end of the group of first connecting rods (7), the bottom of the group of swing rods (9) are movably hinged in the frequency converter box body (1), and are respectively movably hinged with the opposite second connecting rods (8), and the group of heat dissipation fans (10) are mounted at the upper end of the group of the swing rods (9).
2. The medium voltage ac frequency converter according to claim 1, characterized in that the air intake mechanism comprises a set of synchronous cylinders (11), a set of pushing plates (12), a set of fixed sliding rails (13), a set of sliding racks (14), a plurality of rotating shafts (15) and a plurality of air intake baffles (16), wherein the set of synchronous cylinders (11) are installed at the front ends of the set of air intake pipes (2), the telescopic ends are vertically upward, the set of pushing plates (12) are installed at the telescopic ends of the set of synchronous cylinders (11), the set of fixed sliding rails (13) are installed at the front ends of the set of air intake pipes (2) and are positioned at one side of the set of synchronous cylinders (11), the set of sliding racks (14) are slidably installed on the set of fixed sliding rails (13), the upper ends of the sliding racks are connected with the set of pushing plates (12), the plurality of rotating shafts (15) are movably inserted into the set of air intake pipes (2), and the plurality of air intake baffles (16) are installed on the plurality of rotating shafts (15).
3. A medium voltage ac frequency converter according to claim 2, characterized in that the front ends of the rotating shafts (15) are respectively provided with a transmission gear (17) which is meshed with the sliding rack (14).
4. A medium voltage ac frequency converter according to claim 1, characterized in that the rear ends of a set of rotating shafts (6) are each provided with a driven gear (18) which intermeshes with the driving gear (5).
5. A medium voltage ac frequency converter according to claim 1, characterized in that the inner wall of the converter housing (1) on one side is provided with a temperature sensor (19).
6. A medium voltage ac frequency converter according to claim 1 characterized in that the rear surface of the frequency converter box (1) is provided with a set of fan-shaped air outlets (20) opposite to the heat radiation fan (10), the fan-shaped air outlets (20) are respectively provided with an impurity filter screen one (21), and the air inlet pipeline (2) is respectively provided with an impurity filter screen two (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455041.0U CN220382968U (en) | 2023-06-08 | 2023-06-08 | Medium-voltage alternating-current frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455041.0U CN220382968U (en) | 2023-06-08 | 2023-06-08 | Medium-voltage alternating-current frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220382968U true CN220382968U (en) | 2024-01-23 |
Family
ID=89571155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321455041.0U Active CN220382968U (en) | 2023-06-08 | 2023-06-08 | Medium-voltage alternating-current frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220382968U (en) |
-
2023
- 2023-06-08 CN CN202321455041.0U patent/CN220382968U/en active Active
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