CN202931176U - Frequency converter - Google Patents

Frequency converter Download PDF

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Publication number
CN202931176U
CN202931176U CN 201220620333 CN201220620333U CN202931176U CN 202931176 U CN202931176 U CN 202931176U CN 201220620333 CN201220620333 CN 201220620333 CN 201220620333 U CN201220620333 U CN 201220620333U CN 202931176 U CN202931176 U CN 202931176U
Authority
CN
China
Prior art keywords
frequency converter
filter
space
filtering
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220620333
Other languages
Chinese (zh)
Inventor
陈钊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoding Tianwei Yingli New Energy Resources Co Ltd
Original Assignee
Baoding Tianwei Yingli New Energy Resources Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baoding Tianwei Yingli New Energy Resources Co Ltd filed Critical Baoding Tianwei Yingli New Energy Resources Co Ltd
Priority to CN 201220620333 priority Critical patent/CN202931176U/en
Application granted granted Critical
Publication of CN202931176U publication Critical patent/CN202931176U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a frequency converter. The frequency converter comprises a cooling fan and further comprises a filtering apparatus used for filtering air entering into the cooling fan. The filtering apparatus is arranged to fit with the cooling fan. With the application of the technical scheme of the utility model, the filtering apparatus is arranged to fit with the cooling fan of the frequency converter so that by the effect of the filtering apparatus, the content of hazardous substances harmful to the frequency converter in the air which enters into the frequency converter can be reduced and the frequency of damages of the frequency converter can be decreased, thereby lowering the maintenance cost and reducing accidents of shutdown of equipment caused by alarms sent from the frequency converter.

Description

Frequency converter
Technical field
The utility model relates to the electric equipment field, in particular to a kind of frequency converter.
Background technology
Frequency converter is to use converter technique and microelectric technique, controls the electric control appliance of alternating current motor by changing machine operation supply frequency mode.In prior art, the control device that is used for controlling mashing pump is mainly frequency converter, can make the different frequency of frequency converter output control the rotating speed of mashing pump motor by the set parameter of operating system, thereby make the rotary speed of the impeller of mashing pump also can realize controlling.The amount of the slurry extracted out of impeller also just can realize having controlled like this.Can realize by the control of frequency converter the flow be scheduled to by arranging of parameter, if the frequent faiture alarm of frequency converter will cause equipment downtime and affect output, the length of downtime also can affect the quality of product.
In existing equipment; frequency converter does not have protective device when work; contain a large amount of dust and moisture in the air that sucks in frequency converter; its inner radiator fan, circuit board are covered by dust; also because the corrosion of moisture occurs snapping and the phenomenon of burning, its inner integrated component also has the phenomenon of damage in the welding position of the pin of the components and parts on circuit board.In frequency converter, most important parts are IGBT components and parts, the IGBT full name is insulated gate bipolar transistor, by the BJT(double pole triode) and the MOS(insulating gate type field effect tube) the compound full-control type voltage driven type power semiconductor that forms, popularly say that it is a semiconductor device that the high withstand voltage voltage of high-power large electric current drives, it is just as the switch of a multichannel in electronic circuit.The electric current that passes through due to IGBT components and parts inside is larger, slightly has the phenomenon of short circuit will cause the blast of IGBT components and parts, thereby causes scrapping of whole frequency converter, causes very large loss.
The utility model content
The utility model aims to provide a kind of frequency converter, reduces to reach dust and the moisture that enters the air in frequency converter, thereby reduces the purpose of the damage probability of frequency converter.
The utility model provides a kind of frequency converter to achieve these goals, comprises radiator fan, and above-mentioned frequency converter also comprises the filter that enters the air of radiator fan for filtration, and filter and radiator fan are equipped with.
Further, filter comprises: housing comprises housing air inlet and housing air outlet, the corresponding setting of air inlet of housing air outlet and radiator fan; Dust filtering layer is arranged at enclosure interior, is used for filtering the airborne dust that enters housing.
Further, filter also comprises the moisture filter layer, is arranged at enclosure interior, separates with dust filtering layer to arrange, and is used for filtering the airborne moisture that enters housing.
Further, filter also is provided with the palisade intermediate layer, filter is divided near the first space of housing air outlet with away from the second space of housing air outlet by the palisade intermediate layer, air enters filter from the housing air inlet that second space arranges, and passes the first space and enter radiator fan from the housing air outlet; Dust-filtering is placed on the first space, moisture filter is placed on second space, and perhaps moisture filter is placed on the first space, dust-filtering is placed on second space.
Further, palisade intermediate layer and housing air outlet place surface of shell arrange abreast.
Further, dust filtering layer comprises sponge.
Further, the moisture filter layer comprises the drier that absorbs moisture.
Further, filter also comprises the circuit mounting groove that is arranged at outside, and the circuit mounting groove is used for installing power line, holding wire and/or the shielding conductor of frequency converter.
Use the technical solution of the utility model; filter is set to be coordinated with the radiator fan of frequency converter; effect by filter; reduce in the air enter in frequency converter the content to the prejudicial harmful substance of frequency converter; reduce the frequency that frequency converter damages; thereby reach the reduction maintenance cost, reduce because of the report to the police accident of the equipment downtime cause of frequency converter.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the three-dimensional structure schematic diagram according to the filter in the utility model embodiment;
Fig. 2 is the structural representation according to the palisade intermediate layer of the filter in the utility model embodiment.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model provides a kind of frequency converter, comprises radiator fan, and frequency converter also comprises the filter that coordinates butt with the air inlet of radiator fan, and filter is used for filtering the air that enters radiator fan.Filter is set to be coordinated with the radiator fan of frequency converter; effect by filter; reduce in the air enter in frequency converter the content to the prejudicial harmful substance of frequency converter; reduce the frequency that frequency converter damages; thereby reach the reduction maintenance cost, reduce because of the report to the police accident of the equipment downtime cause of frequency converter.
As shown in Figure 1, filter comprises: housing, dust filtering layer and moisture filter layer.Housing comprises housing air inlet and housing air outlet 1, the corresponding setting of air inlet of housing air outlet 1 and radiator fan.Dust filtering layer is arranged at enclosure interior, is used for filtering the airborne dust that enters housing.The moisture filter layer also is arranged at enclosure interior, separates with dust filtering layer to arrange, and is used for filtering the airborne moisture that enters housing.Dust filtering layer and moisture filter layer are set filter respectively airborne dust and the moisture that enters the filter housing, thereby reduce or avoid dust and moisture to enter frequency converter, improve the useful life of frequency converter, reduce stopping accident.
As depicted in figs. 1 and 2, filter also is provided with palisade intermediate layer 2, and filter is divided near the first space 31 of housing air outlet 1 with away from the second space 32 of housing air outlet 1 by palisade intermediate layer 2; Dust-filtering is placed on the first space 31, moisture filter is placed on second space 32, and perhaps moisture filter is placed on the first space 31, dust-filtering is placed on second space 32.
Particularly, housing air outlet 1 is three, is arranged at the top of housing, the corresponding setting of air inlet of each housing air outlet 1 and a radiator fan.Preferably, palisade intermediate layer 2 arranges abreast with housing air outlet 1 place surface of shell.Dust filtering layer can be sponge, is arranged at the first space 31.The moisture filter layer is arranged at above-mentioned second space 32 for absorbing the drier of moisture.Air enters second space 32 from the housing air inlet, and the drying agent is carried out entering the first space 31 after abundant drying to airborne moisture, and passes after the inner sponge that arranges in the first space 31 carries out dust-filtering, enters radiator fan from housing air outlet 1.Thereby realize moisture and the dust that enters in frequency converter filtered.
Filter in the present embodiment also comprises the circuit mounting groove 5 that is arranged at outside, and circuit mounting groove 5 is used for installing power line, holding wire and the shielding conductor of frequency converter.
Further, the filter in the present embodiment also is provided with threaded joints 4, and above-mentioned filter and frequency converter are threaded connection section 4 and are fixed with bolt.
Need to prove, quantity and the position of housing air outlet 1 are not limited to above-described embodiment, and every arrangement mode corresponding with cooling fan of frequency converter all can be equal to replacement.
From above description; can find out; the utility model the above embodiments have realized following technique effect: filter is set coordinates with the radiator fan of frequency converter; effect by filter; reduce in the air enter in frequency converter the content to the prejudicial harmful substance of frequency converter; reduce the frequency that frequency converter damages, thereby reach the reduction maintenance cost, reduce because of the report to the police accident of the equipment downtime that causes of frequency converter.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims (8)

1. a frequency converter, comprise radiator fan, it is characterized in that, described frequency converter also comprises the filter that enters the air of described radiator fan for filtration, and described filter and described radiator fan are equipped with.
2. frequency converter according to claim 1, is characterized in that, described filter comprises:
Housing comprises housing air inlet and housing air outlet (1), the corresponding setting of air inlet of described housing air outlet (1) and described radiator fan;
Dust filtering layer is arranged at described enclosure interior, is used for filtering the airborne dust that enters described housing.
3. frequency converter according to claim 2, is characterized in that, described filter also comprises the moisture filter layer, is arranged at described enclosure interior, separates with described dust filtering layer to arrange, and is used for filtering the airborne moisture that enters described housing.
4. frequency converter according to claim 3, is characterized in that,
Described filter also is provided with palisade intermediate layer (2), described filter is divided near first space (31) of described housing air outlet (1) with away from the second space (32) of described housing air outlet (1) by described palisade intermediate layer (2), air enters described filter from the described housing air inlet that described second space (32) arranges, and passes described the first space (31) and enter described radiator fan from described housing air outlet (1);
Described dust-filtering is placed on described the first space (31), described moisture filter is placed on described second space (32),
Perhaps described moisture filter is placed on described the first space (31), described dust-filtering is placed on described second space (32).
5. frequency converter according to claim 4, is characterized in that, described palisade intermediate layer (2) arranges abreast with described housing air outlet (1) place surface of shell.
6. the described frequency converter of any one according to claim 2 to 5, is characterized in that, described dust filtering layer comprises sponge.
7. the described frequency converter of any one according to claim 3 to 5, is characterized in that, described moisture filter layer comprises the drier that absorbs moisture.
8. the described frequency converter of any one according to claim 2 to 5, it is characterized in that, described filter also comprises the circuit mounting groove (5) that is arranged at described outside, and described circuit mounting groove (5) is used for installing power line, holding wire and/or the shielding conductor of described frequency converter.
CN 201220620333 2012-11-21 2012-11-21 Frequency converter Expired - Fee Related CN202931176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220620333 CN202931176U (en) 2012-11-21 2012-11-21 Frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220620333 CN202931176U (en) 2012-11-21 2012-11-21 Frequency converter

Publications (1)

Publication Number Publication Date
CN202931176U true CN202931176U (en) 2013-05-08

Family

ID=48221086

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220620333 Expired - Fee Related CN202931176U (en) 2012-11-21 2012-11-21 Frequency converter

Country Status (1)

Country Link
CN (1) CN202931176U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106533134A (en) * 2016-12-15 2017-03-22 重庆科川电气有限公司 Self-sealing heat radiation frequency converter cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106533134A (en) * 2016-12-15 2017-03-22 重庆科川电气有限公司 Self-sealing heat radiation frequency converter cabinet
CN106533134B (en) * 2016-12-15 2019-05-10 重庆科川电气有限公司 A kind of self-enclosed heat dissipation frequency-charger cabinet

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130508

Termination date: 20161121

CF01 Termination of patent right due to non-payment of annual fee