CN201450484U - Special water cooling variable frequency speed controlling device for coal mining machine - Google Patents
Special water cooling variable frequency speed controlling device for coal mining machine Download PDFInfo
- Publication number
- CN201450484U CN201450484U CN2009200339250U CN200920033925U CN201450484U CN 201450484 U CN201450484 U CN 201450484U CN 2009200339250 U CN2009200339250 U CN 2009200339250U CN 200920033925 U CN200920033925 U CN 200920033925U CN 201450484 U CN201450484 U CN 201450484U
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- winning machine
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Abstract
The utility model discloses a special water cooling variable frequency speed controlling device for a coal mining machine, which comprises an electric control box and a special variable frequency speed controlling device for the coal mining machine mounted in the electric control box; the special variable frequency speed controlling device for the coal mining machine comprises a variable frequency speed control main circuit, and a controlling and driving circuit, wherein the variable frequency speed control main circuit comprises an air contactor, a frequency converter circuit consisting of an incoming line side rectifier, a DC filter capacitor and a motor side inverter, a pre-charge circuit for the frequency converter circuit, a piezoresistor and an LCL wave filter, and the controlling and driving circuit comprises a control board, a drive circuit board, a control board for the incoming line side rectifier, a control board for the motor side inverter and an optical fiber communication module; a water cooling radiator used to cool the frequency speed controlling device special for the coal mining machine is mounted at the bottom part of the electric control box. The utility model has the advantages of simple structure, convenient, safe and reliable operation, excellent use effect, and extremely excellent speed controlling and energy saving effect, and can effectively solve the radiating problem of a traction AC speed controlling device of an electric traction coal mining machine.
Description
Technical field
The utility model relates to a kind of RHVC, especially relates to the special-purpose water-cooled RHVC of a kind of coal-winning machine.
Background technology
Frequency converter is the core of alternating current traction coal-winning machine, and the quality of its work directly influences the characteristic and the reliability of whole coal-winning machine.Abroad, owing to have powerful device fabrication level and quite high technological means, the RHVC of using in the coal-winning machine is the particular surroundings that produces at the colliery and specialized designs is made, and is that speed adjusting performance or reliability are all very high therefore.And at home, though on the design of frequency converter, control method with very nearly the same abroad, but there is very big gap at aspects such as manufacturing, technological level, devices, therefore, frequency converter in the domestic AC electrical haulage shearer all is the universal frequency converter that directly adopts external typing, designs explosion-resistant enclosure and cooling system voluntarily and forms homemade electrical haulage shearer traction AC speed regulator.Wherein the cooling problem of coal-winning machine frequency converter is exactly by transforming the difficult point of external typing universal frequency converter maximum.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provide a kind of coal-winning machine special-purpose water-cooled RHVC, it is simple in structure, install and use easy and simple to handle and result of use good, safe and reliable to operation, speed governing and energy-saving effect are splendid, can effectively solve the heat dissipation problem of electrical haulage shearer traction AC speed regulator.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the special-purpose water-cooled RHVC of a kind of coal-winning machine comprises electric cabinet and is installed in the special-purpose RHVC of the interior coal-winning machine of electric cabinet; The special-purpose RHVC of described coal-winning machine comprises frequency control main circuit and control and drive circuit that described frequency control main circuit is controlled and driven, described frequency control main circuit comprises the air contactor that the drive circuit with traction motor for coal mining machine joins, by the inlet wire side rectifier, the converter circuit that dc filter capacitor and motor side inverter are formed, the pre-charge circuit of described converter circuit, play the varistor of overvoltage protection effect and the LCL filter that inlet wire side voltage is carried out filtering, described control and drive circuit comprise control board, drive circuit board, inlet wire side rectifier control board, motor side inverter control plate and realize the optical fiber communication module of two-way communication between described frequency control main circuit and control and drive circuit; Air contactor and LCL filter are installed in the electric cabinet upper outside, it is characterized in that: described electric cabinet bottom is equipped with the water-cooling type radiator that the special-purpose RHVC of described coal-winning machine is lowered the temperature and cooled off.
Described water-cooling type radiator is for being laid with the heat transmission channel plate of a plurality of cooling-water ducts on it.
Described channel plate directly contacts with the electric cabinet base plate and the two is coated with and is brushed with one deck thermal grease conduction heat transfer layer.
Described inlet wire side rectifier and motor side inverter are installed on the base plate of electric cabinet.
The utility model compared with prior art has the following advantages:
1, simple in structure, easy for installation and the processing and fabricating cost is lower, in the utility model the special-purpose RHVC structure of existing coal-winning machine is not done any change, just its bottom cavity below installation one water-cooling type radiator gets final product, thereby the radiating mode that will have the special-purpose RHVC of coal-winning machine now changes the water-cooled mode into by the wind radiating mode.
2, use easy and simple to handle and result of use good, safe and reliable to operation, speed governing and energy-saving effect are splendid, the electric cabinet base plate is equivalent to the water-cooling wall that the bottom is laid with a plurality of cooling-water ducts, and rectifier and inverter in the special-purpose RHVC of coal-winning machine all are equivalent to be directly installed on the water-cooling type radiator, and water-cooling type radiator is that water-cooling wall closely contacts and the two transmits heat by thermal grease conduction with the electric cabinet base plate; Correspondingly, electric cabinet then is installed within the coal-winning machine framework, and when normally using, the heat that the special-purpose RHVC of coal-winning machine is produced is taken away by water-cooling wall.
3, applied widely, the utility model is applicable to the coal-winning machine of various models.
In sum, the utility model is simple in structure, install and use easy and simple to handle and result of use good, safe and reliable to operation, speed governing and energy-saving effect are splendid, can effectively solve the heat dissipation problem of electrical haulage shearer traction AC speed regulator.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals:
The 1-electric cabinet; The 2-air contactor; The 3-LCL filter;
4-control and drive circuit; The 5-channel plate; The 6-bolt.
Embodiment
As shown in Figure 1, the utility model comprises electric cabinet 1 and the special-purpose RHVC of coal-winning machine that is installed in the electric cabinet 1.The special-purpose RHVC of described coal-winning machine comprises frequency control main circuit and control and drive circuit 4 that described frequency control main circuit is controlled and driven, and described frequency control main circuit comprises air contactor 2 that the drive circuit with traction motor for coal mining machine joins, the pre-charge circuit of the converter circuit of being made up of inlet wire side rectifier, dc filter capacitor and motor side inverter, described converter circuit, play the varistor of overvoltage protection effect and the LCL filter 3 that inlet wire side voltage is carried out filtering.Described control and drive circuit 4 comprise control board, drive circuit board, inlet wire side rectifier control board, motor side inverter control plate and realize the optical fiber communication module of two-way communication between described frequency control main circuit and control and drive circuit.Described air contactor 2 and LCL filter 3 are installed in electric cabinet 1 upper outside.Described electric cabinet 1 bottom is equipped with the water-cooling type radiator that the special-purpose RHVC of described coal-winning machine is lowered the temperature and cooled off.
In the present embodiment, described water-cooling type radiator is for being laid with the heat transmission channel plate 5 of a plurality of cooling-water ducts on it, and described channel plate 5 directly contacts with electric cabinet 1 base plate and the two is coated with and is brushed with one deck thermal grease conduction heat transfer layer.Described inlet wire side rectifier and motor side inverter are installed on the base plate of electric cabinet 1.Fixedly connected by bolt 6 between described channel plate 5 and electric cabinet 1 base plate.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (4)
1. the special-purpose water-cooled RHVC of coal-winning machine comprises electric cabinet (1) and is installed in the special-purpose RHVC of the interior coal-winning machine of electric cabinet (1); The special-purpose RHVC of described coal-winning machine comprises frequency control main circuit and control and drive circuit (4) that described frequency control main circuit is controlled and driven, described frequency control main circuit comprises the air contactor (2) that the drive circuit with traction motor for coal mining machine joins, by the inlet wire side rectifier, the converter circuit that dc filter capacitor and motor side inverter are formed, the pre-charge circuit of described converter circuit, play the varistor of overvoltage protection effect and the LCL filter (3) that inlet wire side voltage is carried out filtering, described control and drive circuit (4) comprise control board, drive circuit board, inlet wire side rectifier control board, motor side inverter control plate and realize the optical fiber communication module of two-way communication between described frequency control main circuit and control and drive circuit; Air contactor (2) and LCL filter (3) are installed in electric cabinet (1) upper outside, it is characterized in that: described electric cabinet (1) bottom is equipped with the water-cooling type radiator that the special-purpose RHVC of described coal-winning machine is lowered the temperature and cooled off.
2. according to the special-purpose water-cooled RHVC of the described coal-winning machine of claim 1, it is characterized in that: described water-cooling type radiator is for being laid with the heat transmission channel plate (5) of a plurality of cooling-water ducts on it.
3. according to the special-purpose water-cooled RHVC of the described coal-winning machine of claim 2, it is characterized in that: described channel plate (5) directly contacts with electric cabinet (1) base plate and the two is coated with and is brushed with one deck thermal grease conduction heat transfer layer.
4. according to the special-purpose water-cooled RHVC of the described coal-winning machine of claim 3, it is characterized in that: described inlet wire side rectifier and motor side inverter are installed on the base plate of electric cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200339250U CN201450484U (en) | 2009-07-17 | 2009-07-17 | Special water cooling variable frequency speed controlling device for coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200339250U CN201450484U (en) | 2009-07-17 | 2009-07-17 | Special water cooling variable frequency speed controlling device for coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201450484U true CN201450484U (en) | 2010-05-05 |
Family
ID=42555207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200339250U Expired - Lifetime CN201450484U (en) | 2009-07-17 | 2009-07-17 | Special water cooling variable frequency speed controlling device for coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201450484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271480A (en) * | 2010-06-04 | 2011-12-07 | 施耐德东芝换流器欧洲公司 | Electrical equipment and base for same |
| CN103228121A (en) * | 2013-03-21 | 2013-07-31 | 无锡市恒达矿山机械有限公司 | Water cooling electric cabinet |
-
2009
- 2009-07-17 CN CN2009200339250U patent/CN201450484U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271480A (en) * | 2010-06-04 | 2011-12-07 | 施耐德东芝换流器欧洲公司 | Electrical equipment and base for same |
| CN103228121A (en) * | 2013-03-21 | 2013-07-31 | 无锡市恒达矿山机械有限公司 | Water cooling electric cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
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| CX01 | Expiry of patent term |