CN202652780U - Sealing protection device of capacitor in frequency converter - Google Patents
Sealing protection device of capacitor in frequency converter Download PDFInfo
- Publication number
- CN202652780U CN202652780U CN 201220289618 CN201220289618U CN202652780U CN 202652780 U CN202652780 U CN 202652780U CN 201220289618 CN201220289618 CN 201220289618 CN 201220289618 U CN201220289618 U CN 201220289618U CN 202652780 U CN202652780 U CN 202652780U
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- frequency converter
- cavity
- capacitor
- electric capacity
- bending part
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Abstract
The utility model discloses a sealing protection device of a capacitor in a frequency converter. The sealing protection device of the capacitor in the frequency converter includes a capacitor, a bending piece, an installation support board and a case body. A sealing cavity is defined through welding the bending piece with a lower end face of the case body and the installation support board respectively and fixedly. The capacitor is arranged in the cavity. An air channel is formed between the external part of the cavity and the case body. According to the utility model, the cavity is defined through welding the bending piece with the lower end face of the case body and the installation support board respectively and fixedly. The external part of the cavity is sealed and the internal part of the cavity is empty. The capacitor is arranged in the cavity. The capacitor is arranged in the sealed cavity. Moist and corrosive gases and dust in the external environment of the frequency converter are separated with the capacitor completely and cannot enter into the case body at the same time. And the frequency converter is compact in structure and convenient in installation. Stable performance of the frequency converter in poor environment can be guaranteed. And the performance of the frequency is improved and the service lifetime is prolonged effectively.
Description
Technical field
The utility model relates to capacitance structure field in the frequency converter, relates in particular to the sealing protective device of electric capacity in a kind of frequency converter.
Background technology
The abominable industrial occasions of many dust, many burn intos humidity and the high temperature such as frequency converter is widely used in printing and dyeing, weaving, cement, coal, pottery, bearing, and the electric capacity in the frequency converter on the market all is the exposed air channel that places, after use after a while, these band corrosion and moist gas, dust not only can corrosion capacitances, also can enter cabinet inside by electric capacity and cabinet assemblage gap, cause the easy corrosion of electronic device, the short circuit of machine intimate or produce arc phenomenon, thereby affect useful life and the performance of frequency converter.。The positional structure of electric capacity comprises following two kinds in the existing frequency converter:
1, such as Fig. 3, the unguarded air channel 5 that places of electric capacity, gas and dust moist like this and corrosion enters machine intimate in the capacitor board accumulation or from the capacitor board assemblage gap easily, the easy like this fault such as machine generation electric arc sparking that makes.
2, such as Fig. 4, electric capacity places case box inner, and dust and the gas that can solve in the machine environment for use enter machine intimate, but, the overall dimensions of machine is strengthened, material cost height and cost of transportation all can increase, the in addition inconvenient wiring of this mode affects efficiency of assembling.
The utility model content
For the weak point that exists in the above-mentioned technology, the utility model provides the sealing protective device of electric capacity in a kind of frequency converter, can effectively prevent extraneous gas and dust intrusion electric capacity and cabinet inside, easy for installation and frequency converter long service life.
For achieving the above object, the utility model provides the sealing protective device of electric capacity in a kind of frequency converter, comprises electric capacity, bending part, installation supporting plate and case box; Described bending part is enclosed a seal chamber with described case box lower surface and the fixing welding of described installation supporting plate respectively, and described electric capacity is placed in the described cavity.
Wherein, the thickness of described bending part is 1.2mm.
Wherein, described bending part is U-shaped bending part.
The beneficial effects of the utility model are: compared with prior art, the sealing protective device of electric capacity in the frequency converter that the utility model provides comprises electric capacity, bending part, installation supporting plate and case box; Bending part is enclosed a seal chamber with case box lower surface and the fixing welding of installation supporting plate respectively, and electric capacity is placed in the cavity.Electric capacity places in the cavity of sealing, and gas and dust moist in the frequency converter external environment condition, corrosion is complete and electric capacity is isolated, also can't enter cabinet inside simultaneously; And this frequency changer is compact, easy for installation, thereby makes frequency converter can guarantee stable performance in actual adverse circumstances, Effective Raise the performance and used life of frequency converter.
Description of drawings
Fig. 1 is the structure chart of the sealing protective device of electric capacity in the frequency converter of the present utility model;
Fig. 2 is the structure chart of case box in the sealing protective device of electric capacity in the frequency converter of the present utility model;
Fig. 3 is the structure chart that electric capacity places the air channel in the prior art;
Fig. 4 is that electric capacity places the interior structure chart of case box in the prior art.
The main element symbol description is as follows:
1, electric capacity 2, bending part
3, supporting plate 4, case box are installed
41, case box lower surface 5, air channel
Embodiment
In order more clearly to explain the utility model, below in conjunction with accompanying drawing the utility model is done to describe further.
See also Fig. 1 and Fig. 2, the sealing protective device of electric capacity in the frequency converter that the utility model provides comprises electric capacity 1, bending part 2, supporting plate 3 and case box 4 is installed; Bending part 2 is enclosed a seal chamber with case box lower surface 41 and the 3 fixing welding of installation supporting plate respectively, and electric capacity 1 is placed in the cavity.
In the present embodiment, the thickness of bending part 2 is 1.2mm, and bending part 2 is U-shaped bending part.Be that bending part is the cold-rolled steel sheet with T=1.2mm, form with the numerical control bender bending.
Advantage of the present utility model is: the bending part in this device is enclosed a cavity with case box lower surface and the fixing welding of installation supporting plate respectively, this cavity outside seal, and the cavity of inner empty avoiding, electric capacity place in the cavity; Gas and dust moist in the frequency converter external environment condition, corrosion is complete and electric capacity is isolated, also can't enter cabinet inside simultaneously; And this frequency changer is compact, easy for installation, thereby makes frequency converter can guarantee stable performance in actual adverse circumstances, Effective Raise the performance and used life of frequency converter.
This novel and electric capacity are not made the frequency converter of hermetically-sealed construction and are compared, in the abominable industrial occasions of many dust, many burn intos humidity and the high temperature such as pottery, bearing, capacitor board and other electronic devices be corrosion not, and the mechanical disorder that causes because of environment for use does not occur yet.
Electric capacity in the frequency converter is arranged sealing protective device, and after frequency converter turnover electrical wire interface was installed suitable joint, the complete machine degree of protection can reach the degree of protection of IP64 among IEC 529-598 and the GB 700-86.(prevent fully foreign object and dust invade and prevent all directions from splashing and the water intrusion electrical equipment that comes and cause damage).
More than disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection range of the present utility model.
Claims (3)
1. the sealing protective device of electric capacity in the frequency converter is characterized in that, comprises electric capacity, bending part, installation supporting plate and case box; Described bending part is enclosed a seal chamber with described case box lower surface and the fixing welding of described installation supporting plate respectively, and described electric capacity is placed in the described cavity.
2. the sealing protective device of electric capacity in the frequency converter according to claim 1 is characterized in that, the thickness of described bending part is 1.2mm.
3. the sealing protective device of electric capacity in the frequency converter according to claim 1 and 2 is characterized in that, described bending part is U-shaped bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220289618 CN202652780U (en) | 2012-06-19 | 2012-06-19 | Sealing protection device of capacitor in frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220289618 CN202652780U (en) | 2012-06-19 | 2012-06-19 | Sealing protection device of capacitor in frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652780U true CN202652780U (en) | 2013-01-02 |
Family
ID=47421795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220289618 Expired - Lifetime CN202652780U (en) | 2012-06-19 | 2012-06-19 | Sealing protection device of capacitor in frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273256A (en) * | 2018-11-07 | 2019-01-25 | 深圳市英威腾电气股份有限公司 | A kind of capacitance structure and electrical equipment |
-
2012
- 2012-06-19 CN CN 201220289618 patent/CN202652780U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273256A (en) * | 2018-11-07 | 2019-01-25 | 深圳市英威腾电气股份有限公司 | A kind of capacitance structure and electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181119 Address after: 215000 No. 1000 Songhua Road, Guo Xiang street, Wuzhong Economic and Technological Development Zone, Suzhou, Jiangsu Patentee after: SUZHOU WEICHUANG ELECTRICAL EQUIPMENT TECHNOLOGY CO., LTD. Address before: 518000 Baoan District Shiyan street, Shenzhen, Guangdong Province, the third phase of the two phase Industrial Zone, C Patentee before: Flextronics Shenzhen City Electric Co,, Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 No. 1000 Songhua Road, Guo Xiang street, Wuzhong Economic and Technological Development Zone, Suzhou, Jiangsu Patentee after: Suzhou Weichuang Electrical Technology Co., Ltd. Address before: 215000 No. 1000 Songhua Road, Guo Xiang street, Wuzhong Economic and Technological Development Zone, Suzhou, Jiangsu Patentee before: SUZHOU WEICHUANG ELECTRICAL EQUIPMENT TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |