CN2279694Y - Double-metal plate thermal relay - Google Patents
Double-metal plate thermal relay Download PDFInfo
- Publication number
- CN2279694Y CN2279694Y CN 96241082 CN96241082U CN2279694Y CN 2279694 Y CN2279694 Y CN 2279694Y CN 96241082 CN96241082 CN 96241082 CN 96241082 U CN96241082 U CN 96241082U CN 2279694 Y CN2279694 Y CN 2279694Y
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- CN
- China
- Prior art keywords
- thermal relay
- pointer
- dynamic
- bimetal
- red
- 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
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Abstract
The utility model relates to a double-metal plate thermal relay with dynamic indication. An insulating pointer is led out on the lever of the tripping mechanism of the existing double-metal plate thermal relay and is arranged on the side of a manual setting disk. Each setting value of the manual setting disk is corresponding to the indication of the insulating pointer; at the time of overload or two-phase operation, the pointer tends to the red sector of a red and green indicating scale; after a special time, the thermal relay acts, and the load protection is carried out. The dynamic tracking and pairing of the thermal relay to the load change can be carried out visually, and the utility model is convenient for monitoring and adjusting load in time for operators.
Description
The utility model relates to bimetal thermal relay, particularly has the bimetal thermal relay of dynamic pointer, belongs to low-voltage electrical apparatus protection field.
Bimetal thermal relay of the prior art is to 380V to voltage; electric current to alternating current machine long-term below the 160A or the interruption operation is made overload and open-phase protection; owing to overcurrent directly/the indirect bimetal leaf produces the time-delay of the action of threading off and overload current and is anti-time limit characteristic and is subject to ambient temperature; electric parameter; the bimetal leaf quality; influence such as machining accuracy and manufacturing process; the protection precision is not high; add that the pairing of capacity motor and thermal relay in the use just sits in the right seat and do not reflect the tracking situation of thermal relay and load variations; usually only according to the size of setting value rough estimate actual loading, cause load to be difficult to be protected exactly.
From the bimetal thermal relay that West Germany BBC company introduces; only the T25 type has one to observe the aperture that thermal relay moves; can only blur by this aperture and to observe having or not of sheet metal, and can not observe its dynamic change, thereby also be difficult to improve protection accuracy load-motor.
The purpose of this utility model is except that the function that has kept existing overload protection thermal relay, has increased the dynamically function of indication of load condition, has overcome the above-mentioned many disadvantages of existing bimetal thermal relay forcefully.
The purpose of this utility model is what be achieved through the following technical solutions: draw the insulation pointer in the web side of manually adjusting on existing bimetal thermal relay tripping mechanism lever; and allow each setting value of manually adjusting on coiling indicate corresponding with the insulation pointer; when overload or two-phase operation; pointer tends to the red sector of red green indicator; through special time; the thermal relay action; enforcement is to the protection of load; promptly implement dynamic tracking and the pairing of thermal relay intuitively, be convenient to the operator and monitor and adjustment load in time load variations.
The utility model is compared with existing bimetal thermal relay and had the following advantages: (1) can observe directly thermal relay and corresponding relation and the variable condition of motor under load current; (2) can observe directly protected motor and be in underloading or heavy duty, be beneficial to timely adjustment; (3) can observe directly the thermal relay setting value and whether be located at the optimum position; (4) profile of the existing relay of maintenance, 26S Proteasome Structure and Function.By description below in conjunction with accompanying drawing, will be to the purpose of this utility model feature, other feature has further understanding.
Fig. 1 is the perspective view with bimetal thermal relay of dynamic indication of the present utility model;
Fig. 2 is the top view with bimetal thermal relay of dynamic indication of the present utility model;
Fig. 3 is the assembly connection diagram with bimetal thermal relay of dynamic indication of the present utility model.
With reference to Fig. 1, bimetal thermal relay of the present utility model is by dynamic pointer (1), red green cuing scale (2), the dish (3) of manually adjusting, hand-reset key (4), main line connecting screw (5), subordinate line road (control circuit) connecting screw (6), body (7), cover plate (8), bimetal leaf (9), tripping mechanism (10) and tripping mechanism lever (11) are formed, promptly draw insulation pointer (1) in the web side of manually adjusting on the tripping mechanism lever (11) of existing bimetal thermal relay, it is corresponding with the indication of insulation pointer that the dish of manually adjusting is gone up each indicating value.Red green indicator (2) is divided into red green two districts with the scope of pointer indication, and green is light loading district, and red is the overload district, when overload or two-phase operation, and the pointed red sector, through special time, the thermal relay action, enforcement is to the protection of load.
As seen principal character of the present utility model is the dynamic change by pointer reflection bimetal thermal relay, and upward each setting value is corresponding with the dish of manually adjusting, and accurately and intuitively indicates the state of thermal relay.
With reference to Fig. 3,380V (the highest), (5) that 160A (maximum) electric current connects by main line, bimetal leaf (9) is connected to load (motor).When load current surpasses setting value, bimetal leaf (9) bending, through special time, company's part of bimetal leaf (9) is stirred tripping mechanism (10), and drive tripping mechanism lever (11) makes it to thread off.Subordinate line connecting screw (6) mn two ends disconnect, and dynamic pointer points to red sector, and external contactor is cut off the electricity supply, and implement the protection of motor or low-voltage electrical apparatus.
Though the utility model has been done detailed description by the foregoing description, but those skilled in the art are to be understood that, the foregoing description does not constitute restriction of the present utility model, can make many modifications and variations, but the spirit and the scope that do not break away from following claims and limited.
Claims (3)
1; a kind of bimetal thermal relay with dynamic indication; comprise the dish (3) of manually adjusting; hand-reset key (4); main line connecting screw (5); body (7); cover plate (8); bimetal leaf (9); tripping mechanism (10) and tripping mechanism lever (11); it is characterized in that also comprising insulation dynamic pointer (1) and red green cuing scale (2); described insulation pointer (1) is drawn from said tripping mechanism lever (11); place the said avris of dish (3) of manually adjusting; the dynamic change of pointer reflection bimetal thermal relay; and it is corresponding with last each setting value of the said dish (3) of manually adjusting; 380V (the highest); (5) that 160A (maximum) electric current connects by main line; bimetal leaf (9); be connected to load (motor); when load current surpasses setting value; bimetal leaf (9) bending; through special time; company's part of bimetal leaf (9) is stirred tripping mechanism (10); and drive tripping mechanism lever (11) action; the mn two ends of subordinate line connecting screw (6) disconnect; dynamic pointer points to red sector; external contactor is cut off the electricity supply, and implements the protection of motor or low-voltage electrical apparatus.
2, according to the bimetal thermal relay with dynamic indication of claim 1, the scope that it is characterized in that said pointer indication is divided into red green two districts by said red green cuing scale (2), its medium green is a light loading district, red is the overload district, and three lines of red sector are corresponding with three indicating values on the dish of manually adjusting.
3, the bimetal thermal relay that has dynamic indication according to claim 1 is characterized in that described insulation dynamic pointer uses the insulating material of general low-voltage electrical apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241082 CN2279694Y (en) | 1996-10-17 | 1996-10-17 | Double-metal plate thermal relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241082 CN2279694Y (en) | 1996-10-17 | 1996-10-17 | Double-metal plate thermal relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2279694Y true CN2279694Y (en) | 1998-04-22 |
Family
ID=33915551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96241082 Expired - Fee Related CN2279694Y (en) | 1996-10-17 | 1996-10-17 | Double-metal plate thermal relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2279694Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651066B (en) * | 2009-08-26 | 2012-12-26 | 郭永明 | Digital type thermal relay |
| CN103489719A (en) * | 2013-09-11 | 2014-01-01 | 国家电网公司 | Thermal relay |
| CN103489720A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | High-sensitivity thermal relay |
| CN104167329A (en) * | 2013-05-17 | 2014-11-26 | 郭永明 | High-precision thermorelay |
-
1996
- 1996-10-17 CN CN 96241082 patent/CN2279694Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651066B (en) * | 2009-08-26 | 2012-12-26 | 郭永明 | Digital type thermal relay |
| CN104167329A (en) * | 2013-05-17 | 2014-11-26 | 郭永明 | High-precision thermorelay |
| CN103489719A (en) * | 2013-09-11 | 2014-01-01 | 国家电网公司 | Thermal relay |
| CN103489719B (en) * | 2013-09-11 | 2016-09-21 | 国家电网公司 | A kind of thermorelay |
| CN103489720A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | High-sensitivity thermal relay |
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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; FROM: CHEN YINGZHONG TO: CHEN CHENGJIN |
|
| CP03 | Change of name, title or address |
Address after: 325604 No. 3, Changning Road, Yueqing, Zhejiang Patentee after: Chen Chengjin Address before: 100042, Beijing, Shijingshan District ancient city, one hundred thousand Ping, the fifth floor of the ancient city Patentee before: Chen Yingzhong |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Chengjin Document name: payment instructions |
|
| 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 |