CN204290685U - A kind of cooling blower high voltage frequency converter - Google Patents
A kind of cooling blower high voltage frequency converter Download PDFInfo
- Publication number
- CN204290685U CN204290685U CN201420784004.9U CN201420784004U CN204290685U CN 204290685 U CN204290685 U CN 204290685U CN 201420784004 U CN201420784004 U CN 201420784004U CN 204290685 U CN204290685 U CN 204290685U
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- contactor
- cooling blower
- inverter
- control device
- branch road
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- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000010009 beating Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a kind of cooling blower high voltage frequency converter, control device is arranged in same channel steel base by set bolt, dropping equipment and inverter top are provided with cooling blower fan, dropping equipment, be separated by by panel beating dividing plate between inverter and control device, control device comprises contactor and time-delay relay, contactor connects contactor self-locking branch road, time-delay relay connecting fan time delay branch road, contactor self-locking branch road and blower fan time delay branch circuit parallel connection, the normally-closed contact that the normally-closed contact of contactor self-locking branch road series connection energization delay relay makes energization delay relay obtain electric rear time delay disconnection energization delay relay makes contactor dead electricity disconnect the connection of blower fan and power supply, control device and dropping equipment, inverter, cooling blower is connected.The utility model machine volume is compact, can extend the useful life of cooling blower simultaneously, and structure is simple, is beneficial to maintenance.
Description
Technical field:
The utility model relates to a kind of converter plant, particularly relates to a kind of cooling blower high voltage frequency converter.
Background technology:
Variable-frequency control technique and systematic difference can make the control performance of power transmission system and energy-saving horizontal have raising by a relatively large margin.When low-power requirements, just cause a large amount of motor to be in light running, utilization rate of electrical is low, waste electric energy phenomenon is serious, in telex system, adds frequency converter link, can reduction productivity power consumption by a relatively large margin, also greatly can optimize the control performance of manufacturing machine.Mine ventilation in coal industry, be equipped with the chief ventilators that a large amount of power is larger, its average efficiency only reaches 60%, operational efficiency is less than 55%, lower than foreign level 15 percentage points, the dragging system of main fan in mine is implemented frequency conversion speed-adjusting system transformation, good economic benefit can be produced.In recent years along with the enhancing that China's rapid development of economy and people's energy-conserving and environment-protective are realized, frequency converter was more and more universal in China's application, and user's request is also more and more diversified.
Equipment cooling in high voltage converter application directly affects the security of operation of frequency converter self, high voltage converter is when normally working, origin of heat is isolating transformer, reactor, power cell, control system etc. mainly, wherein as the heat radiation of the heat radiation of the power device of main circuit electronic switch, the heat dissipation design of power cell and power cabinet and Design of ventilation the most important.Existing cooling blower controls mostly need manually open/stop, also without time delay hold function, unfavorable to the useful life of equipment and cooling blower.
Utility model content:
In order to solve the problem, the utility model provides a kind of simple structure, can extend the technical scheme of service life of fan:
A kind of cooling blower high voltage frequency converter, comprise dropping equipment, inverter, control device, channel steel base, cooling blower, dropping equipment, inverter, control device are arranged in same channel steel base by set bolt, dropping equipment and inverter top are provided with cooling blower fan, and control device is connected with dropping equipment, inverter, cooling blower.Dropping equipment, be separated by by panel beating dividing plate between inverter and control device, control device comprises contactor and energization delay relay, and contactor connects contactor self-locking branch road, energization delay relay connecting fan time delay branch road.
As preferably, contactor self-locking branch road and blower fan time delay branch circuit parallel connection, the normally-closed contact of contactor self-locking branch road series connection energization delay relay.
As preferably, contactor self-locking branch road comprises the auxiliary relay normally opened contact of series connection, energization delay relay normally-closed contact and contactor, auxiliary relay normally opened contact parallel contactor normally opened contact.
As preferably, blower fan time delay branch road comprises the auxiliary relay normally-closed contact of series connection, contactor normally opened contact and energization delay relay.
As preferably, dropping equipment is transformer case, and inverter is inverter cabinet, comprises power cell, and control device comprises contactor and energization delay relay.
The beneficial effects of the utility model are:
(1) the utility model increases on-delay circuit on traditional infrastructure, can extension device useful life, can avoid the frequent start-stop of cooling blower simultaneously, substantially prolongs the useful life of cooling blower.
(2) the utility model compact conformation, floor space is little, be beneficial to maintenance and operating cost is low.
Accompanying drawing illustrates:
Fig. 1 is Facad structure sketch of the present utility model;
Fig. 2 is that the utility model main circuit structure connects sketch;
Fig. 3 is that the utility model control circuit connects sketch.
Embodiment:
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, execution mode of the present utility model is described in further detail.
A kind of cooling blower high voltage frequency converter as shown in Figure 1, comprise dropping equipment 1, inverter 2, control device 3, channel steel base 4, cooling blower 5, dropping equipment 1, inverter 2, control device 3 is arranged in same channel steel base 4 by set bolt, step-down fills 1 and puts and be provided with cooling blower fan 5 with inverter 2 top, dropping equipment 1, be separated by by panel beating dividing plate a between inverter 2 and control device 3, dropping equipment 1 is transformer case, inverter 2 is inverter cabinet, comprise power cell 21, control device 1 comprises contactor 31 and energization delay relay 32, control device 1 and dropping equipment 2, inverter 3, cooling blower 5 is connected.
As Figure 2-3, in the main circuit of blower fan, be connected with power supply u after the normally opened contact of cooling blower 5 series contactor km, circuit breaker qf1.Be connected with power supply u after the normally opened contact of power cell 21 series contactor km, circuit breaker qf2, after circuit breaker qf1 closes, because there is self-holding circuit in contactor km, the normally-closed contact of energization delay relay kt does not disconnect, contactor km keeps attracting state, thus series contactor km normally opened contact closes, make cooling blower 5 energy continuous firing.Contactor self-locking branch road and blower fan time delay branch circuit parallel connection, the normally-closed contact of contactor self-locking branch road series connection energization delay relay kt makes energization delay relay kt obtain the normally-closed contact of electric rear time delay disconnection on-delay relay kt, makes contactor km dead electricity to disconnect the connection of blower fan and power supply.Contactor self-locking branch road comprises the auxiliary relay ka normally opened contact of series connection, energization delay relay kt normally-closed contact and contactor km, auxiliary relay ka normally opened contact parallel contactor km normally opened contact; When detecting that high pressure obtains the signal of telecommunication or converting operation signal, auxiliary relay ka normally opened contact obtains electric adhesive, and when high pressure dead electricity or converting operation stop, auxiliary relay ka normally opened contact dead electricity disconnects.Blower fan time delay branch road comprises the auxiliary relay ka normally-closed contact of series connection, contactor km normally opened contact and energization delay relay kt.The utility model can avoid the frequent start-stop of cooling blower, substantially prolongs the useful life of cooling blower.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (5)
1. a cooling blower high voltage frequency converter, comprise dropping equipment (1), inverter (2), control device (3), channel steel base (4), cooling blower (5), dropping equipment (1), inverter (2), control device (3) is arranged in same channel steel base (4) by set bolt, dropping equipment (1) and inverter (2) top are provided with cooling blower fan (5), control device (3) and dropping equipment (1), inverter (2), cooling blower (5) is connected, it is characterized in that: described dropping equipment (1), be separated by by panel beating dividing plate (a) between described inverter (2) and described control device (3), described control device (3) comprises contactor (km) and energization delay relay (kt), described contactor (km) connects contactor self-locking branch road, described energization delay relay (kt) connecting fan time delay branch road.
2. a kind of cooling blower high voltage frequency converter according to claim 1, is characterized in that: described contactor self-locking branch road and blower fan time delay branch circuit parallel connection, and contactor self-locking branch road is connected (kt) normally-closed contact of described energization delay relay.
3. a kind of cooling blower high voltage frequency converter according to claim 2, it is characterized in that: described contactor self-locking branch road comprises auxiliary relay (ka) normally opened contact of series connection, described energization delay relay (kt) normally-closed contact and described contactor (km), described auxiliary relay (ka) normally opened contact described contactor (km) normally opened contact in parallel.
4. a kind of cooling blower high voltage frequency converter according to claim 2, is characterized in that: described blower fan time delay branch road comprises auxiliary relay (ka) normally-closed contact of series connection, contactor (km) normally opened contact and energization delay relay (kt).
5. a kind of cooling blower high voltage frequency converter according to claim 1, it is characterized in that: described dropping equipment (1) is transformer case, described inverter (2) is inverter cabinet, comprise power cell (21), described control device (3) comprises contactor (km) and energization delay relay (kt).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784004.9U CN204290685U (en) | 2014-12-11 | 2014-12-11 | A kind of cooling blower high voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784004.9U CN204290685U (en) | 2014-12-11 | 2014-12-11 | A kind of cooling blower high voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204290685U true CN204290685U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420784004.9U Expired - Fee Related CN204290685U (en) | 2014-12-11 | 2014-12-11 | A kind of cooling blower high voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204290685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN113395019A (en) * | 2021-06-25 | 2021-09-14 | 安徽海螺建材设计研究院有限责任公司 | Variable frequency motor and remote linkage control system and method for cooling fan of variable frequency motor |
-
2014
- 2014-12-11 CN CN201420784004.9U patent/CN204290685U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN108571461B (en) * | 2018-05-31 | 2023-11-21 | 河南森源电气股份有限公司 | Fan control device, fan system and frequency converter system |
| CN113395019A (en) * | 2021-06-25 | 2021-09-14 | 安徽海螺建材设计研究院有限责任公司 | Variable frequency motor and remote linkage control system and method for cooling fan of variable frequency motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20181211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |