CN201117602Y - Adjustable type creepage breaker overcurrent trip device - Google Patents
Adjustable type creepage breaker overcurrent trip device Download PDFInfo
- Publication number
- CN201117602Y CN201117602Y CNU2007200423302U CN200720042330U CN201117602Y CN 201117602 Y CN201117602 Y CN 201117602Y CN U2007200423302 U CNU2007200423302 U CN U2007200423302U CN 200720042330 U CN200720042330 U CN 200720042330U CN 201117602 Y CN201117602 Y CN 201117602Y
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- coil
- conducting strip
- shunt resistance
- electrically
- angle
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- Expired - Fee Related
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Abstract
The utility model discloses an overcurrent tripping device used for an adjustable leakage circuit breaker, which includes an oil cup and a coil winding on the oil cup. The overcurrent tripping device is characterized in that the coil is connected with a changeable resistor in parallel. With the structural design that the coil is connected in parallel with the changeable resistor, the overcurrent tripping circuit breaker changes the rated current of the adjustable leakage circuit breaker through changing the resistance value of the changeable resistor, keeps currents on the branches of the coil constant and further determines the size of a magnetic field generating from the coil. Compared with the structural design that the size of the current magnetic field generating from the coil is constant through the change of coil turns, the used amount of copper material is obviously reduced and the cost is lowered greatly.
Description
Technical field
The utility model relates to the trip gear in a kind of residual current circuit breaker.
Background technology
Existing trip gear generally is to make by the copper coil number of turn on the change lubricating cup still can produce the constant of magnetic field size by hold-in winding under situation about changing by coil current, promptly draw several electrical pickofves at different numbers of turn place, the electrical pickoff of selecting to connect different numbers of turn place reaches the copper coil number of turn on the change lubricating cup, thereby can make trip gear produce the magnetic field of constant size.The trip gear of this structure is owing to will twine the multiple layer of copper coil thereby the copper material consumption is big, and product cost is higher, and the electrical pickoff of this trip gear is very limited, generally has only third gear available, and it is very loaded down with trivial details to surpass third gear copper coil canoe.
The utility model content
The purpose of this utility model is to overcome above technological deficiency, provide a kind of simple in structure, the copper material consumption is little, can conveniently realize the trip gear that many gears are regulated again.
In order to realize above purpose, the utility model by the following technical solutions: the overcurrent release device in the adjustable residual current circuit breaker comprises lubricating cup and is wrapped in coil on the lubricating cup, described coils from parallel connection of coils one variable resistor.
The utility model can further be set to: described variable resistor comprises shunt resistance, conducting strip, shunt resistance and conducting strip are fixed on the insulating base, one end of coil is electrically connected with conducting strip, the other end is electrically connected with an end of shunt resistance, shunt resistance is drawn a plurality of electrical pickofves, resistance value between the junction of shunt resistance and coil and each electrical pickoff has nothing in common with each other, and described trip gear selectively is electrically connected single electrical pickoff and conducting strip.
The beneficial effects of the utility model are: the utility model adopts the variable-resistance structural design of coils from parallel connection of coils, by changing the size of current on the variable-resistance resistance value change path of winding, like this under the situation that total current changes, it is constant that the electric current of flowing through coil still can keep, and the size that coil produces magnetic field is also certain.Compare to have now by changing coil turn and come hold-in winding to produce the structural design of magnetic field constant magnitude, the copper material consumption obviously reduces, and cost reduces greatly.
Further describe below in conjunction with accompanying drawing and embodiment
Description of drawings
Fig. 1 is the utility model specific embodiment perspective view;
Fig. 2 is the conducting strip perspective view;
Fig. 3 is the shunt resistance schematic perspective view;
Fig. 4 is shunt resistance, conducting strip and insulating base combination schematic diagram;
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the overcurrent release device in a kind of adjustable residual current circuit breaker comprises lubricating cup 3 and is wrapped in coil 4, shunt resistance 2, conducting strip 1 on the lubricating cup 3.
One end, 11 welding of one end of coil 4 and conducting strip 1, an end 22 welding of the other end and shunt resistance 2.Foreign current flows to outflow by the end 12 of coil shunt resistance weld and conducting strip.Shunt resistance 2 is drawn a plurality of angles 21 that electrically contact at the rectangular different length place of metal, and present embodiment is provided with 4 and electrically contacts angle 21, certainly increases or reduce the quantity that electrically contacts angle 21 as required.It is different with the length of shunt resistance 2 welds to coil that each electrically contacts angle 21, so each resistance value that electrically contacts between angle 21 and the coil shunt resistance weld also just has nothing in common with each other.One side of insulating base 7 is provided with arc chute 71, electrically contacts angle 21 and passes insulating base 7 and reach insulating base 7 chute 71 1 sides are set, and the terminal bending that electrically contacts angle 21 passes the side of chute 71, and is outstanding to chute 71 directions.Be provided with a metallic gasket 5 that can be free to slide along chute 71 length directions in this chute 71.The shape of conducting strip 1 is also roughly curved, and it is located at a side relative with electrically contacting angle 21, and the marginal portion of conducting strip 1 is outstanding to chute 71 along the length direction of arc chute 71, metallic gasket 5 is limited in it can not dropped out in chute 71.The center of metallic gasket 5 is provided with screw, and DRIVE SCREWS 6 in the screw, the screw terminal of screw 6 are electrically connected conducting strip 1 and singlely electrically contact angle 21.
Above-mentioned shunt resistance 2, conducting strip 1, metallic gasket 5, insulating base 7, screw 6 have constituted a variable resistor in parallel with coil 4.Metallic gasket 5 is moved to chute 71 desired location places, with the screw on the screw 6 screw-in metallic gaskets 5, screw 6 and metallic gasket 5 conducting conducting strips 1 and electrically contact angle 21 accordingly, like this under the situation that total current changes, it is constant that size of current on coil 4 branch roads still can keep, and then coil 4 produces the constant magnitude in magnetic field.Compared to existing technology, 4 of coils need to twine one deck and get final product, and save a large amount of copper materials.Shunt resistance 2 can be drawn a plurality of angles 21 that electrically contact as required convenient and simplely, and comparing existing trip gear can have more gear available.
Protection range of the present utility model is not limited only to above-mentioned embodiment, and any improvement that the utility model is not had an essentiality content all belongs within the utility model protection range.
Claims (4)
1. the overcurrent release device in the adjustable residual current circuit breaker comprises lubricating cup and is wrapped in coil on the lubricating cup, it is characterized in that: described coils from parallel connection of coils one variable resistor.
2. trip gear according to claim 1, it is characterized in that: described variable resistor comprises shunt resistance, conducting strip, shunt resistance and conducting strip are fixed on the insulating base, one end of coil is electrically connected with conducting strip, the other end is electrically connected with an end of shunt resistance, shunt resistance is drawn a plurality of electrical pickofves, and the resistance value between the junction of shunt resistance and coil and each electrical pickoff has nothing in common with each other, and described trip gear selectively is electrically connected single electrical pickoff and conducting strip.
3. the overcurrent release device in the adjustable residual current circuit breaker according to claim 2, it is characterized in that: described shunt resistance is that a metal is rectangular, this metal is rectangular draws a plurality of angles that electrically contact at the different length place, described insulating base is provided with chute, be provided with metallic gasket in the chute, describedly electrically contact the angle and pass insulating base and extend to insulating base and establish chute one side, it is terminal crooked and pass from chute one side to electrically contact the angle, conducting strip is located at a relative side that electrically contacts the angle, the angular direction is outstanding to form spacing the cooperation with metallic gasket to electrically contacting in this conducting strip marginal portion, metallic gasket is provided with screw, DRIVE SCREWS in the screw, the screw terminal of screw are electrically connected conducting strip and singlely electrically contact the angle.
4. the overcurrent release device in the adjustable residual current circuit breaker according to claim 3 is characterized in that: described shunt resistance is drawn 4 and is electrically contacted the angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200423302U CN201117602Y (en) | 2007-11-19 | 2007-11-19 | Adjustable type creepage breaker overcurrent trip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200423302U CN201117602Y (en) | 2007-11-19 | 2007-11-19 | Adjustable type creepage breaker overcurrent trip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117602Y true CN201117602Y (en) | 2008-09-17 |
Family
ID=39992183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200423302U Expired - Fee Related CN201117602Y (en) | 2007-11-19 | 2007-11-19 | Adjustable type creepage breaker overcurrent trip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117602Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163523A (en) * | 2011-03-16 | 2011-08-24 | 温州市新蓝天电器有限公司 | Tripping and shunting mechanism of circuit breaker |
-
2007
- 2007-11-19 CN CNU2007200423302U patent/CN201117602Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163523A (en) * | 2011-03-16 | 2011-08-24 | 温州市新蓝天电器有限公司 | Tripping and shunting mechanism of circuit breaker |
| CN102163523B (en) * | 2011-03-16 | 2013-04-03 | 温州市新蓝天电器有限公司 | Tripping and shunting mechanism of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Adjustable type creepage breaker overcurrent trip device Effective date of registration: 20120802 Granted publication date: 20080917 Pledgee: Bank of Communications Ltd Wenzhou Yongjia branch Pledgor: Wenzhou New Blue Sky Electrical Co., Ltd. Registration number: 2012990000419 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130617 Granted publication date: 20080917 Pledgee: Bank of Communications Ltd Wenzhou Yongjia branch Pledgor: Wenzhou New Blue Sky Electrical Co., Ltd. Registration number: 2012990000419 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |