CN204013190U - Frequency converter - Google Patents
Frequency converter Download PDFInfo
- Publication number
- CN204013190U CN204013190U CN201420457562.4U CN201420457562U CN204013190U CN 204013190 U CN204013190 U CN 204013190U CN 201420457562 U CN201420457562 U CN 201420457562U CN 204013190 U CN204013190 U CN 204013190U
- Authority
- CN
- China
- Prior art keywords
- dustproof
- metallic plate
- heat
- housing
- frequency converter
- 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
Links
Abstract
The utility model discloses a kind of frequency converter, comprise that inside is provided with the housing of electronic devices and components, housing one side is provided with heat abstractor, heat abstractor comprise heat-conducting seat and be arranged on the louvre of housing side, on heat-conducting seat, be provided with some fin, on heat-conducting seat, be also provided with metallic plate, metallic plate is provided with two dustproof sheets, metallic plate is provided with two rotating rotating shafts, and two rotating shafts are fixedly connected with two dustproof sheets respectively, and the junction of dustproof sheet and rotating shaft adopts circular arc setting.The utility model can be in the time not being worked or the louvre being arranged on its housing is sealed up when poor working environment, and then strengthens dust-proof effect.
Description
Technical field
The utility model belongs to technical field of electricity, relates to a kind of frequency converter.
Background technology
Frequency converter is application converter technique and microelectric technique, controls the electric control appliance of alternating current motor by changing machine operation supply frequency mode.Frequency converter is mainly made up of rectification (AC-DC), filtering, inversion (direct current becomes interchange), brake unit, driver element, detecting unit microprocessing unit etc.Voltage and the frequency of cut-offfing to adjust out-put supply of the inner IGBT of portion of frequency converter; provide its needed supply voltage according to the actual needs of motor, and then reach object energy-conservation, speed governing, in addition; frequency converter also has a lot of defencive functions, as overcurrent, overvoltage, overload protection etc.Along with improving constantly of industrial automatization, frequency converter has also obtained application very widely.
In order to increase radiating effect, many louvres all can be offered in the side of frequency converter, be convenient to the electronic component of frequency converter inside to dispel the heat, due to the extensive use of frequency converter, its operational environment is also various, the for example more environment of some high humility or dust, frequency converter can, because the impurity such as high humility or dust enter, easily cause internal circuit short circuit.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of frequency converter, and it can seal up the louvre being arranged on its housing in the time not working, and then strengthens dust-proof effect.
For achieving the above object, the utility model provides following technical scheme:
A kind of frequency converter, comprise that inside is provided with the housing of electronic devices and components, described housing one side is provided with heat abstractor, described heat abstractor comprises heat-conducting seat and is arranged on the louvre of described housing side, on heat-conducting seat, be provided with some fin, on described heat-conducting seat, be also provided with metallic plate, described metallic plate is provided with two dustproof sheets, described metallic plate is provided with two rotating rotating shafts, two described rotating shafts are fixedly connected with two described dustproof sheets respectively, and the junction of described dustproof sheet and described rotating shaft adopts circular arc setting.
By adopting technique scheme, two dustproof sheets are to be hinged on metallic plate by above-mentioned structure, and so corresponding two dustproof sheets just can rotate, and after both rotate respectively 90 degree, just the louvre on housing can be sealed so.Meanwhile, two dustproof sheets have been adopted to above-mentioned circular arc setting, both just can not conflict in the time rotating so, and then can realize the process of rotation.
Further, described rotating shaft one end is fixedly connected with described dustproof sheet, and the other end extends to described metallic plate away from a side of described dustproof sheet and is provided with gear, and the gear in two described rotating shafts is intermeshing.
Further, two adjacent sides of described dustproof sheet are respectively equipped with the first draw-in groove and the first fixture block, described the first draw-in groove matches with the first fixture block, and two described dustproof sheets are respectively equipped with the second draw-in groove and the second fixture block near a side of described louvre, and described the second draw-in groove matches with two fixture blocks.
Compared with prior art, the utility model can, in the time that frequency converter is not worked or when work operational environment is poor, seal the louvre on frequency converter by rotating above-mentioned dustproof sheet, to reach dustproof object.
Brief description of the drawings
Fig. 1 is the schematic diagram of the dustproof sheet of the utility model embodiment while not rotating;
Fig. 2 be the utility model embodiment dustproof sheet rotate time schematic diagram;
Fig. 3 is the schematic diagram of the utility model embodiment;
Fig. 4 is the enlarged drawing of A portion in Fig. 3;
Fig. 5 is the schematic diagram that the dustproof sheet of the utility model embodiment seals louvre;
Fig. 6 is the enlarged drawing of B portion in Fig. 5;
Fig. 7 is the enlarged drawing of C portion in Fig. 5;
Fig. 8 is the schematic diagram of dustproof sheet in the utility model embodiment;
Fig. 9 is the schematic diagram of dustproof sheet in the utility model embodiment;
Figure 10 is the enlarged drawing of D portion in Fig. 9;
Figure 11 is the enlarged drawing of E portion in Fig. 9.
Accompanying drawing mark: 1, housing, 2, heat abstractor, 21, heat-conducting seat, 211, fin, 212, metallic plate, 2121, rotating shaft, 21211, gear, 22, louvre, 3, dustproof sheet, 31, the first fixture block, 32, the first draw-in groove, 33, the second fixture block, 34, the second draw-in groove.
Embodiment
Referring to figs. 1 through Figure 11, the utility model embodiment is described further.
A kind of frequency converter, comprise that inside is provided with the housing 1 of electronic devices and components, housing 1 one sides are provided with heat abstractor 2, heat abstractor 2 comprise heat-conducting seat 21 and be arranged on the louvre 22 of housing 1 side, on heat-conducting seat 21, be provided with some fin 211, on heat-conducting seat 21, be also provided with metallic plate 212, metallic plate 212 is provided with two dustproof sheets 3, metallic plate 212 is provided with two rotating rotating shafts 2121, two rotating shafts 2121 are fixedly connected with two dustproof sheets 3 respectively, and dustproof sheet 3 adopts circular arc setting with the junction of rotating shaft 2121.
The operation principle of the present embodiment is:
Two dustproof sheets 3 are to be hinged on metallic plate 212 by above-mentioned structure, and so corresponding two dustproof sheets 3 just can rotate, and after both rotate respectively 90 degree, just the louvre on housing 1 22 can be sealed so.Meanwhile, two dustproof sheets 3 have been adopted to above-mentioned circular arc setting, both just can not conflict in the time rotating so, and then can realize the process of rotation.
In the present embodiment, as can see from Figure 3, the surface of sheet metal and housing 1 maintains an equal level, and so, thereby two dustproof sheets 3 could be realized rotating louvre 22 is sealed.
In addition, be identical by the size of two dustproof sheets 3, and for the consideration of aesthetic, the size of two dustproof sheets 3 is half of metallic plate 212, like this, two dustproof sheets 3 in the time of not dustproof state, just can with the size adaptation of metallic plate 212.In addition, two dustproof sheets 3 are all made of plastics, and can reduce to a certain extent like this cost, can be specifically with polytetrafluoroethylene, and this kind of raw material has the antiwear characteristic of height; Because dustproof sheet 3, in the process of rotating, is understood and sheet metal friction, so, if the resistance to wear of two dustproof sheets 3 is poor, in the process of friction, two dustproof sheets 3 will be worn, and will reduce like this useful life of two dustproof sheets 3.
Further, rotating shaft 2121 one end are fixedly connected with dustproof sheet 3, and the other end extends to metallic plate 212 away from a side of dustproof sheet 3 and to be provided with gear 21211 in 21211, two rotating shafts 2121 of gear intermeshing.So, in the time that one of them dustproof sheet 3 rotates, can just enough drive another dustproof sheets 3 rotate by gear 21211, like this, just can realize the angle that two dustproof sheets 3 rotate simultaneously and rotate identical.
Further, as shown in Fig. 5 to Figure 11, two adjacent sides of dustproof sheet 3 are respectively equipped with the first draw-in groove 32 and the first fixture block 31, the first draw-in groove 32 matches with the first fixture block 31, two dustproof sheets 3 are respectively equipped with the second draw-in groove 34 near a side of louvre 22 and the second fixture block 33, the second draw-in grooves 34 match with two fixture blocks.
In the time not rotating dustproof sheet 3, the first draw-in groove 32 and the first fixture block 31 are chimeric; When two dustproof sheets 3 rotate after 90 degree to the direction of louvre 22 respectively, the second draw-in groove 34 and the second fixture block 33 are chimeric so.Because dustproof sheet 3 may occur becoming flexible after repeatedly rotating, so once there be vibrations, two dustproof sheets 3 just likely can rotate voluntarily, so in the time that frequency converter is worked, two dustproof sheets 3 just likely can turn over and louvre 22 is sealed to part or all seal, and will have a strong impact on like this heat radiation of frequency converter inside; In addition, in the time that two dustproof sheets 3 seal louvre 22, if there are vibrations, that two dustproof sheet 3 also can rotate voluntarily, like this, just can not play good sealing effectiveness.Therefore, be provided with after above-mentioned draw-in groove fixture block, two dustproof sheets 3 are in the time of dustproof state or non-dustproof state so, just can by above-mentioned the first draw-in groove 32 and the first fixture block 31 coordinate and the second draw-in groove 34 and the second fixture block 33 coordinate the situation of avoiding above-mentioned.
Claims (3)
1. a frequency converter, comprise that inside is provided with the housing of electronic devices and components, described housing one side is provided with heat abstractor, described heat abstractor comprises heat-conducting seat and is arranged on the louvre of described housing side, on heat-conducting seat, be provided with some fin, it is characterized in that: on described heat-conducting seat, be also provided with metallic plate, described metallic plate is provided with two dustproof sheets, described metallic plate is provided with two rotating rotating shafts, two described rotating shafts are fixedly connected with two described dustproof sheets respectively, and the junction of described dustproof sheet and described rotating shaft adopts circular arc setting.
2. frequency converter according to claim 1, it is characterized in that: described rotating shaft one end is fixedly connected with described dustproof sheet, the other end extends to described metallic plate away from a side of described dustproof sheet and is provided with gear, and the gear in two described rotating shafts is intermeshing.
3. frequency converter according to claim 2, it is characterized in that: two adjacent sides of described dustproof sheet are respectively equipped with the first draw-in groove and the first fixture block, described the first draw-in groove matches with the first fixture block, two described dustproof sheets are respectively equipped with the second draw-in groove and the second fixture block near a side of described louvre, and described the second draw-in groove matches with two fixture blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457562.4U CN204013190U (en) | 2014-08-13 | 2014-08-13 | Frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457562.4U CN204013190U (en) | 2014-08-13 | 2014-08-13 | Frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204013190U true CN204013190U (en) | 2014-12-10 |
Family
ID=52053127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420457562.4U Expired - Fee Related CN204013190U (en) | 2014-08-13 | 2014-08-13 | Frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204013190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163219A (en) * | 2015-04-24 | 2016-11-23 | 冠捷投资有限公司 | There is the display device in dust-proof radiating hole |
| CN108923620A (en) * | 2018-07-13 | 2018-11-30 | 芜湖超源力工业设计有限公司 | A kind of constant pressure water supply frequency converter |
-
2014
- 2014-08-13 CN CN201420457562.4U patent/CN204013190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163219A (en) * | 2015-04-24 | 2016-11-23 | 冠捷投资有限公司 | There is the display device in dust-proof radiating hole |
| CN108923620A (en) * | 2018-07-13 | 2018-11-30 | 芜湖超源力工业设计有限公司 | A kind of constant pressure water supply frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Method for reducing three-level frequency converter swithcing loss Effective date of registration: 20180522 Granted publication date: 20141210 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd. Pledgor: TAIZHOU LINGSHIDA ELECTRIC APPLIANCES CO.,LTD. Registration number: 2018330000121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20210813 |