CN2278266Y - Burn-resistant contact breaker for three-phase motor - Google Patents
Burn-resistant contact breaker for three-phase motor Download PDFInfo
- Publication number
- CN2278266Y CN2278266Y CN 96205396 CN96205396U CN2278266Y CN 2278266 Y CN2278266 Y CN 2278266Y CN 96205396 CN96205396 CN 96205396 CN 96205396 U CN96205396 U CN 96205396U CN 2278266 Y CN2278266 Y CN 2278266Y
- Authority
- CN
- China
- Prior art keywords
- burn
- phase
- contact breaker
- phase motor
- fuse
- 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
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- Fuses (AREA)
Abstract
The utility model relates to a burn-resistant contact breaker for a three-phase motor, which is composed of a contact breaker base, a cover plate and a mask, characterized in that a fuse is connected between the base and the triangular cover plate.
Description
The utility model relates to operation power three phase electric machine protective device, relates in particular to the unburned disconnecting link of three phase electric machine.
During the prior art threephase motor is used; especially medium and small motor application; its protective device is simple and crude; common three-phase disconnecting link and contactor generally only are installed; and thermorelay protection and open phase protection remove the extra heavy occasion of wanting; then higher because of price, the less employings of reason such as complexity are installed, so often burn motor because of the single-phase fusing of disconnecting link fuse is phase-deficient operation.Rebuild its expense of compound machine generally up to 35% of equipment original cost, or more than, cost is too high, and influence is produced, exhausted the people and drained the treasury.
The purpose of this utility model is to overcome the deficiencies in the prior art part; providing a kind of replaces existing disconnecting link to reach the complicated thermorelay or a kind of ingenious, the simple device of open phase protection; can protect the single-phase fusing of motor g-load fuse can save deenergizing automatically; avoid burn-down of electric motor, save time gold and the energy, material.
The technical solution of the utility model is achieved in that with existing disconnecting link and partly keeps, when safeguarding as the usefulness of hand off power supply.The fuse mounting portion is used one instead and is completely newly installed.The ingenious characteristic of utilizing fuse of this device; lever principle and spring energy-storage mechanism; add the ingenious design of contact; thereby when realizing the motor g-load; one phase fuse failure is arranged; just can automatic shutdown circuit, make motor stator three phase windings all no longer include electric current and pass through, thereby protect motor not burnt automatically.Its novel structure, simple, easy to maintenance, safety.Very easily promote.
Below in conjunction with drawings and Examples the utility model is further specified.
1. inlet wires among the figure; 2. base 1; 3. disconnecting link; 4. fuse;
5. base 2; 6. cover plate; 7. cover; 8. outlet
Source current is through inlet wire 1 in the drawings, the fuse 4 of flowing through behind the combined floodgate, and 4 one of fuses are connected on the disconnecting link 3, and the other end tensioning jumps on three angle cover plates 6, then three angle cover plates 6 is linked to each other with outlet 8, and electric current flows out.
When motor overload or short circuit, electric current is excessive, and during certain phase fuse (two-phase three-phase all can) fusing, force system in equilibrium destroys, and three angle cover plates are upspring, the circuit of cutting off the electricity supply.
Claims (1)
1. the unburned disconnecting link of three phase electric machine mainly is made up of disconnecting link base, cover plate, cover, it is characterized in that fuse is connected between base and the cover plate, and cover plate is a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205396 CN2278266Y (en) | 1996-03-20 | 1996-03-20 | Burn-resistant contact breaker for three-phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205396 CN2278266Y (en) | 1996-03-20 | 1996-03-20 | Burn-resistant contact breaker for three-phase motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2278266Y true CN2278266Y (en) | 1998-04-08 |
Family
ID=33890410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96205396 Expired - Fee Related CN2278266Y (en) | 1996-03-20 | 1996-03-20 | Burn-resistant contact breaker for three-phase motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2278266Y (en) |
-
1996
- 1996-03-20 CN CN 96205396 patent/CN2278266Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: 100016 MONTESSORI INTERNATIONAL SCHOOL,LUFTHANSA CENTER, CHAOYANG DISTRICT,BEIJING CITY TO: NO. 10, XUEJIADAOWUTONGYUAN RESIDENTIAL QUATER, JINGJI DEVELOPMENT AREA, QINGDAO CITY, SHANDONG PROVINCE, 266520 |
|
| CP03 | Change of name, title or address |
Address after: 266520 Shandong Province, Qingdao City Economic Development Zone Xuejiadao Indus Garden Villa District No. 10 Patentee after: Feng Zongxin Address before: Montessori International School Beijing 100016 Chaoyang District Lufthansa Center Patentee before: Feng Zongxin |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |