CN203967957U - The positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus - Google Patents
The positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus Download PDFInfo
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- CN203967957U CN203967957U CN201420373661.4U CN201420373661U CN203967957U CN 203967957 U CN203967957 U CN 203967957U CN 201420373661 U CN201420373661 U CN 201420373661U CN 203967957 U CN203967957 U CN 203967957U
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- electric
- shock preventing
- preventing protector
- underframe
- direct current
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Abstract
The utility model is just disclosing a kind of frequency changer direct current bus, negative terminal shock preventing protector of electric, comprise and be installed on the bus bar wiring terminal on frequency converter underframe and be arranged at the shock preventing protector of electric on underframe, bus bar wiring terminal comprises substrate, on substrate, equidistant parallel is provided with polylith dividing plate, between adjacent separator, be provided with connecting groove, in connecting groove, be provided with the connection bolt for fastening wiring, shock preventing protector of electric is made up of insulating material, the cover plate that it comprises the supporting leg of two row's equidistant parallel settings and is positioned at bus bar wiring terminal top, supporting leg is connected with underframe, between adjacent legs, be provided with the gap of being convenient to cabling, on cover plate, the position of corresponding connecting groove has the opening of being convenient to wiring, opening is circular configuration, its radius is greater than the radius of connection bolt.The positive and negative terminal shock preventing protector of electric of described a kind of frequency changer direct current bus is simple in structure, is easy to realize, and it can prevent that operating personnel from touching binding post, has effectively improved fail safe.
Description
Technical field
The utility model relates to a kind of frequency converter, relates in particular to the positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus.
Background technology
Main circuit of frequency converter in the market generally comprises with lower connecting terminal: R, S, T ,+,-, U, V, W.The input terminal that wherein R, S, T are three phase mains, the lead-out terminal that U, V, W are frequency converter.+ ,-be the positive and negative terminal of DC bus.Need to be with direct current to inverter supply in some occasion, or need frequency converter output direct current, or need to use the positive and negative terminal of DC bus when external brake resistance.But on DC bus, be connected with bus capacitor, when after frequency converter power-off, in electric capacity, still store a large amount of electric charges, on the positive and negative terminal of DC bus, still have very high voltage.The in the situation that of power-off, if the positive and negative terminal of contact DC bus, still may cause the danger of electric shock, and frequency converter product in the market does not do corresponding safeguard procedures for this danger, at this moment, if people touches the positive and negative terminal of DC bus because of carelessness, just there is the danger of electric shock.
Utility model content
The purpose of this utility model is for the problems referred to above; provide a kind of frequency changer direct current bus positive and negative terminal shock preventing protector of electric; after power-off, still there is high voltage to solve the positive and negative terminal of existing frequency changer direct current bus, without corresponding safeguard measure, the problem that fail safe is poor.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of frequency changer direct current bus just, negative terminal shock preventing protector of electric, comprise and be installed on the bus bar wiring terminal on frequency converter underframe and be arranged at the shock preventing protector of electric on underframe, described bus bar wiring terminal comprises substrate, on described substrate, equidistant parallel is provided with polylith dividing plate, between adjacent separator, be provided with connecting groove, in described connecting groove, be provided with the connection bolt for fastening wiring, described shock preventing protector of electric is made up of insulating material, the cover plate that it comprises the supporting leg of two row's equidistant parallel settings and is positioned at bus bar wiring terminal top, described supporting leg is connected with underframe, between adjacent legs, be provided with the gap of being convenient to cabling, on described cover plate, the position of corresponding connecting groove has the opening of being convenient to wiring, described opening is circular configuration, its radius is greater than the radius of connection bolt.
As preferred version of the present utility model, described shock preventing protector of electric is made up of plastic material.
As preferred version of the present utility model, described underframe is made up of plastic material, and itself and shock preventing protector of electric are integrated injection molded, and easily manufactured, simple, cost is low.
The beneficial effects of the utility model are; the positive and negative terminal shock preventing protector of electric of described a kind of frequency changer direct current bus is simple in structure; be easy to realize, it can prevent that operating personnel from touching binding post, has effectively improved fail safe; and in the time of production test; can measure busbar voltage by the opening on shock preventing protector of electric, when wiring, can be by the gap cabling between adjacent legs; thereby tighten the fastening wiring of connection bolt by the opening on cover plate, do not affect test and the use of binding post.
Brief description of the drawings
Fig. 1 is the structural representation of the positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus of the utility model.
In figure:
1, underframe; 2, substrate; 3, dividing plate; 4, connection bolt; 5, cover plate; 6, supporting leg; 7, opening.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.Be understandable that, embodiment described herein is only for explaining the utility model, but not to restriction of the present utility model.
Please refer to shown in Fig. 1, Fig. 1 is the structural representation of the positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus of the utility model.
In the present embodiment, a kind of frequency changer direct current bus just, negative terminal shock preventing protector of electric, comprise and be installed on the bus bar wiring terminal on frequency converter underframe 1 and be arranged at the shock preventing protector of electric on underframe 1, described underframe 1 is made up of plastic material, described bus bar wiring terminal comprises substrate 2, on described substrate 2, equidistant parallel is provided with ten dividing plates 3, between adjacent separator 3, be provided with connecting groove, in described connecting groove, be provided with the connection bolt 4 for fastening wiring, described shock preventing protector of electric is made up of plastic material, itself and underframe 1 are integrated injection molded, shock preventing protector of electric comprises the supporting leg 6 of two row's equidistant parallel settings and is positioned at the cover plate 5 on bus bar wiring terminal top, described supporting leg 6 is connected with underframe 1, between adjacent legs 6, be provided with the gap of being convenient to cabling, on described cover plate 5, the position of corresponding connecting groove has the opening 7 of being convenient to wiring, described opening is circular configuration, its radius is greater than the radius of connection bolt 4.
By setting up shock preventing protector of electric at bus bar wiring terminal place; isolated personnel contact with bus bar wiring terminal; ensure personal safety; and by offer opening 7 on shock preventing protector of electric; and in the gap of the reserved cabling of its side; thereby do not affect production test and the use of bus bar wiring terminal, simple in structure, be easy to realize.
Above embodiment has just set forth general principle of the present utility model and characteristic; the utility model is not limited by above-described embodiment; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a frequency changer direct current bus just, negative terminal shock preventing protector of electric, it is characterized in that: comprise and be installed on the bus bar wiring terminal on frequency converter underframe and be arranged at the shock preventing protector of electric on underframe, described bus bar wiring terminal comprises substrate, on described substrate, equidistant parallel is provided with polylith dividing plate, between adjacent separator, be provided with connecting groove, in described connecting groove, be provided with the connection bolt for fastening wiring, described shock preventing protector of electric is made up of insulating material, the cover plate that it comprises the supporting leg of two row's equidistant parallel settings and is positioned at bus bar wiring terminal top, described supporting leg is connected with underframe, between adjacent legs, be provided with the gap of being convenient to cabling, on described cover plate, the position of corresponding connecting groove has the opening of being convenient to wiring, described opening is circular configuration, its radius is greater than the radius of connection bolt.
2. the positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus according to claim 1, is characterized in that: described shock preventing protector of electric is made up of plastic material.
3. the positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus according to claim 2, is characterized in that: described underframe is made up of plastic material, and itself and shock preventing protector of electric are integrated injection molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373661.4U CN203967957U (en) | 2014-07-04 | 2014-07-04 | The positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373661.4U CN203967957U (en) | 2014-07-04 | 2014-07-04 | The positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967957U true CN203967957U (en) | 2014-11-26 |
Family
ID=51928499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373661.4U Active CN203967957U (en) | 2014-07-04 | 2014-07-04 | The positive and negative terminal shock preventing protector of electric of a kind of frequency changer direct current bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967957U (en) |
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2014
- 2014-07-04 CN CN201420373661.4U patent/CN203967957U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214135 Jiangsu province Wuxi city Wuxi District Taihu international science and Technology Park Linghu Road No. 200 Chinese Sensor Network International Innovation Park building A room 1101 Patentee after: WUXI JACT ELECTRIC CO., LTD. Address before: 214135 Jiangsu province Wuxi city Wuxi District Taihu international science and Technology Park Linghu Road No. 200 Chinese Sensor Network International Innovation Park building A room 1101 Patentee before: Wuxi City Eckert Electric Applicance Co., Ltd |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Frequency-converter direct current bus positive and negative terminal electric shock prevention protection device Effective date of registration: 20160707 Granted publication date: 20141126 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: WUXI JACT ELECTRIC CO., LTD. Registration number: 2016990000574 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |