CN201327800Y - Alarm non-tripping device - Google Patents
Alarm non-tripping device Download PDFInfo
- Publication number
- CN201327800Y CN201327800Y CNU2009200696597U CN200920069659U CN201327800Y CN 201327800 Y CN201327800 Y CN 201327800Y CN U2009200696597 U CNU2009200696597 U CN U2009200696597U CN 200920069659 U CN200920069659 U CN 200920069659U CN 201327800 Y CN201327800 Y CN 201327800Y
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- CN
- China
- Prior art keywords
- bimetal sheet
- bimetal leaf
- thermal element
- screw
- half vertical
- 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 an alarm non-tripping device which is applied to a low-voltage circuit breaker. The device comprises a heat element, a bimetal sheet and a screw. The heat element is Omega-shaped, the bimetal sheet is adhered at the right side surface of a right half vertical part of the heat element, the lower part of the bimetal sheet is riveted at the lower part of the right half vertical part of the heat element by a rivet, the screw is transversely inserted at the upper part of the bimetal sheet in a penetrating manner, and the front end of the screw is stretched out of the bimetal sheet. The heat element can emit heat under the circumstance of long-term electrification, and can be acted on the bimetal sheet by the function of heat transfer. When the action temperature of the bimetal sheet is reached, the bimetal sheet can be bent, and a micro switch is touched, so as to realize the function of non-tripping alarm. The alarm non-tripping device has the advantages that: 1. the price is low; 2. the structure is simple and novel; 3. the installation is convenient, and the circuit breakers with various specifications are used; 4. the performance is safe and reliable.
Description
Technical field
This reports to the police not that trip gear is applied to low-voltage circuit breaker, belongs to electrical equipment manufacturing technology field.
Background technology
Low-voltage circuit breaker is a kind of distribution apparatus that is used in low voltage electric network [(exchanging 50Hz or 60Hz) rated voltage 1200V and following, dc rated voltage is at 1500V and following circuit].By its purposes, low-voltage circuit breaker is defined as: can connect, the electric current of carrying and disjunction normal circuit condition, also can be under the non-normal condition of regulation when single phase ground fault takes place (as overload, short circuit, under voltage and) connect, the device for switching of carrying certain hour and breaking current.Past also is referred to as automatic switch, air switch and air circuit (sky is opened, sky breaks) etc.
Under special field of employment, low-voltage circuit breaker overload long delay is protected the function that needs to realize reporting to the police but do not thread off.Mostly prior art is to adopt the electronics mode to realize this function.The greatest drawback of electronic type alarm non-tripping device is that cost is higher, and is economical inadequately.
Summary of the invention
The purpose of this utility model is in order to overcome the defective of above-mentioned prior art, a kind of alarm non-tripping device to be provided.
The technical scheme that realizes above-mentioned purpose is:
A kind of alarm non-tripping device is characterized in that, comprising:
One thermal element, this thermal element be shaped as one " several " font;
One bimetal leaf, this bimetal leaf are attached to the right flank of right half vertical portion of described thermal element, and the bottom of this bimetal leaf is by the bottom of rivet in right half vertical portion of described thermal element;
One screw, this screw laterally interts on the top of described bimetal leaf, and the front end of this screw stretches out described bimetal leaf.
It is crooked to the right when bimetal leaf is heated.
The bottom of half vertical portion, a left side of described thermal element bends left, the lower rightward bending of right half vertical portion, and described bimetal leaf is attached to the bottom of right half vertical portion of thermal element.
The utility model alarm non-tripping device prior art is compared, and has the following advantages:
1. cheap
2. simple in structure and novel;
3. easy for installation, can be used in the circuit breaker of all size;
4. dependable performance safety;
Description of drawings
Fig. 1 is the structural representation of the utility model alarm non-tripping device;
Fig. 2 is the external wiring diagram of the utility model alarm non-tripping device.
Embodiment
In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
Consult Fig. 1, this reports to the police not that trip gear comprises: thermal element 11, sheet metal 12, screw 13, rivet 14.
The shape of thermal element 11 is near " several " font, and the bottom of its left half vertical portion bends left, the lower rightward bending of right half vertical portion.Bimetal leaf 12 is attached to the right flank of bottom, right half vertical portion of thermal element, and the bottom of this bimetal leaf is by the bottom of rivet in thermal element 11 right half vertical portions.Why this thermal element 11 is designed to " several " font, be for the ease of being placed in the circuit breaker, the bottom of its left half vertical portion bends left, be in order to give the rivet leaving space, the lower rightward bending of its right half vertical portion, be in order to allow this top and bimetal leaf 12 leave some spaces, to prevent that electric current is diverted on the bimetal leaf 12 when flowing through thermal element 11.111 termination moving contact of breaker connecting plates among Fig. 1,112 termination circuit breaker leading-out terminals.
The operation principle of this alarm non-tripping device is: when overload situations takes place, the moving contact of breaker connecting plate is given electric current I of 111 ends, electric current I is left to 112 ends from 111 ends of thermal element, thermal element generates heat under the situation of long-term energising, by heat transfer process in bimetal leaf, when reaching the operating temperature of bimetal leaf, bimetal leaf will be crooked to the right.
Fig. 2 is the external wiring diagram of this alarm non-tripping device, has illustrated the situation of three alarm non-tripping devices parallel connection among the figure.211,221,231 is thermal element; 212,222,232 is bimetal leaf; 213,223,233 is screw; 214,224,234 is sensitive switch; 20 is high temperature wire; 201,202 is the binding post of using to the client.With high temperature wire 20 by as the connection of Fig. 2 sensitive switch 214,224,234 common port C links up and receives binding post 201, again sensitive switch 214,224,234 Chang Kaiduan NO links up and receives binding post 202.When overload situations takes place when, thermal element 211,221, the bimetal leaf 212 above 231,222,232 be heated to the right crooked, bimetal leaf 212,222 in the crooked process, screw 213 on 232,223,233 move right, and touch the locational sensitive switch 214 in its dead ahead, 224,234, make sensitive switch 214,224,234 wherein at least one becomes normally off from normally open, if meet a LED between 201 and 202 two terminals, LED will give out light, and plays the effect of alarm.So just realized the function of alarm non-tripping.
The concrete parameter of sensitive switch is as follows:
Life-span Life 1000000～3000000 times;
Withstand voltage Withstand Voltage AC300V (50Hz)/min;
Action force Press Force 50-100g;
Operating voltage Working Voltage 125VAC;
Operating current Working Current 1A;
Switching frequency Switch Frequency 300Tine/ divide Minute.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (2)
1. an alarm non-tripping device is characterized in that, comprising:
One thermal element, this thermal element be shaped as one " several " font;
One bimetal leaf, this bimetal leaf are attached to the right flank of right half vertical portion of described thermal element, and the bottom of this bimetal leaf is by the bottom of rivet in right half vertical portion of described thermal element;
One screw, this screw laterally interts on the top of described bimetal leaf, and the front end of this screw stretches out described bimetal leaf;
It is crooked to the right when bimetal leaf is heated.
2. a kind of alarm non-tripping device according to claim 1 is characterized in that, the bottom of half vertical portion, a left side of described thermal element bends left, the lower rightward bending of right half vertical portion, and described bimetal leaf is attached to the bottom of right half vertical portion of thermal element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200696597U CN201327800Y (en) | 2009-03-31 | 2009-03-31 | Alarm non-tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200696597U CN201327800Y (en) | 2009-03-31 | 2009-03-31 | Alarm non-tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327800Y true CN201327800Y (en) | 2009-10-14 |
Family
ID=41179766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200696597U Expired - Fee Related CN201327800Y (en) | 2009-03-31 | 2009-03-31 | Alarm non-tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327800Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841146A (en) * | 2010-05-07 | 2010-09-22 | 天津市百利电气有限公司 | Intelligent circuit breaker with overload-alarm non-tripping function and control method |
| CN102299028A (en) * | 2011-08-09 | 2011-12-28 | 无锡新宏泰电器科技股份有限公司 | Overload warning non-tripping device for circuit breaker |
| CN102683124A (en) * | 2011-03-10 | 2012-09-19 | 北京正北元电器有限公司 | Overload alarm non-tripping device of thermomagnetic plastic housing circuit breaker |
| CN104465248A (en) * | 2014-12-26 | 2015-03-25 | 德力西电气有限公司 | Heat tripping adjusting assembly |
| CN105810523A (en) * | 2016-06-02 | 2016-07-27 | 常熟开关制造有限公司(原常熟开关厂） | Heat element structure of releaser of circuit breaker |
-
2009
- 2009-03-31 CN CNU2009200696597U patent/CN201327800Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841146A (en) * | 2010-05-07 | 2010-09-22 | 天津市百利电气有限公司 | Intelligent circuit breaker with overload-alarm non-tripping function and control method |
| CN101841146B (en) * | 2010-05-07 | 2013-09-18 | 天津市百利电气有限公司 | Intelligent circuit breaker with overload-alarm non-tripping function and control method |
| CN102683124A (en) * | 2011-03-10 | 2012-09-19 | 北京正北元电器有限公司 | Overload alarm non-tripping device of thermomagnetic plastic housing circuit breaker |
| CN102299028A (en) * | 2011-08-09 | 2011-12-28 | 无锡新宏泰电器科技股份有限公司 | Overload warning non-tripping device for circuit breaker |
| CN102299028B (en) * | 2011-08-09 | 2016-04-27 | 无锡新宏泰电器科技股份有限公司 | A kind of circuit breaker overload-alarm non-tripping device |
| CN104465248A (en) * | 2014-12-26 | 2015-03-25 | 德力西电气有限公司 | Heat tripping adjusting assembly |
| CN105810523A (en) * | 2016-06-02 | 2016-07-27 | 常熟开关制造有限公司(原常熟开关厂） | Heat element structure of releaser of circuit breaker |
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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 |
Owner name: BOER (SHANGHAI) ELECTRIC SWITCH CO., LTD. Free format text: FORMER NAME: SHANGHAI ELECTRICAL APPARATUS RESEARCH INSTITUTE SWITCH APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiading District Cao Road, Shanghai No. 1908 201803 Patentee after: Boer (Shanghai) Electric Switch Co., Ltd. Address before: Jiading District Cao Road, Shanghai No. 1908 201803 Patentee before: Shanghai Electrical Apparatus Research Institute Switchgear Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20160331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |