CN104465248B - A kind of hot dropout adjusting part - Google Patents
A kind of hot dropout adjusting part Download PDFInfo
- Publication number
- CN104465248B CN104465248B CN201410830261.6A CN201410830261A CN104465248B CN 104465248 B CN104465248 B CN 104465248B CN 201410830261 A CN201410830261 A CN 201410830261A CN 104465248 B CN104465248 B CN 104465248B
- Authority
- CN
- China
- Prior art keywords
- bimetal leaf
- yoke
- baffle plate
- adjusting part
- hot dropout
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
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- Breakers (AREA)
Abstract
The present invention is disclosed in a kind of hot dropout adjusting part, and regulating part is arranged on baffle plate, and adjusting key elongation is contradicted in bimetal leaf, so that bimetal leaf is near tripping mechanism；After regulating part shrinks, away from tripping mechanism, thus bimetal leaf elastic reset, by means of regulating part flexible adjusting the distance between bimetal leaf and tripping mechanism on baffle plate, is realized adjusting the purpose of dropout precision.The set-up mode being arranged on compared to regulating part in prior art on Shell of circuit breaker, in the hot dropout adjusting part of the present invention, yoke is made of metal, deformation degree after its temperature rise is less, regulating part is arranged in the less yoke of deformation degree and directly contradict bimetal leaf so that the hot dropout adjusting part of the present invention can precisely control circuit breaker tripping.
Description
Technical field
The present invention relates to a kind of hot dropout adjusting part, belongs to low voltage electrical apparatus technology field.
Background technology
Miniature circuit breaker generally has overload and short-circuit protection function.Wherein overload protection function is in electricity by bimetal leaf
There is temperature rise when passing by load, bimetal leaf bends with own temperature rising, circuit breaker tripping is made to trigger tripping mechanism,
So as to turn-off current loop, the purpose of overlond trip protection is realized.Existing hot dropout adjusting part is by bimetal leaf and one
The individual support composition for supporting it, thermal trip support include patch panel, soft connection board and the yoke for welding together successively, open circuit
An adjusting screw is provided with the housing of device, by the flexible promoting the baffle plate in yoke to bend of adjusting screw, the baffle plate
Bimetal leaf is promoted to bend again, so as to adjust the distance between bimetal leaf and tripping mechanism.
Also there is following technical problem in existing hot dropout adjusting part：
1st, as the housing of chopper generally has plastics to make, when circuit overloads, due to the rising plastic material of temperature
Housing be susceptible to deformation so that the distance between baffle plate in the adjusting screw being arranged on housing and yoke can not be consolidated
It is fixed, affect the levels of precision threaded off.
2nd, can bend under the promotion of adjusting screw for the ease of baffle plate, it is necessary to weld between yoke and patch panel
One section of soft connection board of setting is connect, causes existing hot dropout adjusting part structural redundancy, the presence of soft connection board to increased product
Production difficulty and cost；And due to the setting of soft connection board, the quantity of solder joint is increased, cause the loop resistance of chopper to increase
Plus, loop resistance value is uncertain to be increased, so as to affect the temperature rise model of chopper.
The content of the invention
Therefore, during the technical problem to be solved in the present invention is existing chopper, hot dropout adjusting part is unable to accurate adjustment
Dropout precision, production cost are higher, and affect the technical problem of chopper temperature rise model, being capable of accurate adjustment so as to provide one kind
Hot dropout precision, production cost are told somebody what one's real intentions are, and are difficult to affect the hot dropout adjusting part of chopper temperature rise model.
To achieve these goals, the present invention provides a kind of hot dropout adjusting part, including yoke and is arranged on the magnetic
Bimetal leaf on yoke, the yoke are provided with baffle plate near the side of the bimetal leaf, and regulating part is arranged on the baffle plate
On, the regulating part elongation is contradicted in the bimetal leaf, so that the bimetal leaf is near the tripping mechanism；The regulation
After part shrinks, the bimetal leaf elastic reset, with away from the tripping mechanism.
In above-mentioned hot dropout adjusting part, the regulating part includes the screwed hole being arranged on the baffle plate, is resisted against institute
State the nut on baffle plate, and the screw for inserting the screwed hole and the nut.
In above-mentioned hot dropout adjusting part, the screwed hole is flange screwed hole.
In above-mentioned hot dropout adjusting part, the screwed hole is arranged on the middle and upper part of the baffle plate.
In above-mentioned hot dropout adjusting part, the lower end of the side of the yoke and the bimetal leaf is weldingly connected.
In above-mentioned hot dropout adjusting part, also including patch panel, the lower end of the patch panel is another with the yoke lower end
Side is weldingly connected.
The above-mentioned technical proposal of the present invention has advantages below compared to existing technology：
1. in the hot dropout adjusting part of the present invention, regulating part is arranged on baffle plate, and adjusting key elongation is contradicted in bimetallic
Piece, so that bimetal leaf is near tripping mechanism；After regulating part shrinks, bimetal leaf elastic reset, away from tripping mechanism, thus,
By means of regulating part flexible adjusting the distance between bimetal leaf and tripping mechanism on baffle plate, realize adjusting essence of threading off
The purpose of degree.The set-up mode being arranged on compared to regulating part in prior art on Shell of circuit breaker, the heat of the present invention are threaded off and are adjusted
In section component, yoke is made of metal, and the deformation degree after its temperature rise is less, and regulating part is arranged on the less magnetic of deformation degree
Bimetal leaf is contradicted on yoke directly so that the hot dropout adjusting part of the present invention can precisely control circuit breaker tripping.
2., in the hot dropout adjusting part of the present invention, regulating part can be applied directly on bimetal leaf, thus without the need for
Soft connection board is set between patch panel and yoke, therefore, it is possible to make the hot dropout adjusting part structure of the present embodiment more succinct,
Production difficulty and cost are reduced, and reduces number of welds, so as to the temperature rise model for ensureing chopper is more stable.
Description of the drawings
In order that present disclosure is more likely to be clearly understood, below in conjunction with the accompanying drawings, the present invention is made further in detail
Thin explanation, wherein,
Fig. 1 is the structural representation of the hot dropout adjusting part of the present invention；
Fig. 2 is the structural representation of yoke in the present invention；
Fig. 3 is the cross-sectional schematic of the chopper using existing hot dropout adjusting part.
Description of reference numerals
20- yokes；30- bimetal leafs；21- baffle plates；22- regulating parts；221- nuts；222- adjusting screws；50- wiring
Plate；60- soft connection boards.
Specific embodiment
Below with reference to accompanying drawing, a kind of hot dropout adjusting part of the present invention is described in detail.
With reference to Fig. 1-3, the present embodiment provides a kind of hot dropout adjusting part, including yoke 20 and is arranged in yoke 20
Bimetal leaf 30, as shown in Figure 1 and Figure 2, the lower end of the yoke 20 has the opening being punched out, the part with the slit complementary
Extend downwardly, the bimetal leaf 30 is arranged in the opening, and the end of the bimetal leaf 30 and the yoke 20
End be weldingly connected.Yoke 20 is provided with baffle plate 21 near the side of the bimetal leaf 30, and the baffle plate 21 is by yoke
20 one end bending and molding.Regulating part 22 is arranged on the baffle plate 21, contradicts the double gold by extending by regulating part 22
Category piece 30, so that the bimetal leaf 30 is near tripping mechanism curving；Or regulating part 22 is by conflict bimetal leaf 30
Position shrink so that the bimetal leaf 30 is to the curving away from the tripping mechanism.Thus, by means of regulating part 22
Flexible adjusting the distance between bimetal leaf 30 and tripping mechanism on baffle plate 21, realize adjusting the mesh of dropout precision
's.The set-up mode being arranged on compared to regulating part in prior art 22 on Shell of circuit breaker, the heat of the present embodiment are threaded off and are adjusted
In component, yoke 20 is made of metal, and the deformation degree after its temperature rise is less, regulating part 22 is arranged on deformation degree less
Bimetal leaf is contradicted in yoke 20 directly so that the hot dropout adjusting part of the present embodiment can precisely control chopper and take off
Button.
Additionally, the screw of general conventional hot dropout adjusting part is by extending the baffle plate 21 for contradicting yoke 20, forcing
21 deformation of baffle plate is reached and adjusts distance between bimetal leaf 30 and tripping mechanism so as to promote 30 deformation of the bimetal leaf
Purpose, in order that screw can promote 21 deformation of the baffle plate, needs one section of setting to be flexible coupling between yoke 20 and patch panel 50,
Which results in the structural redundancy of existing hot dropout governor motion, the two ends of soft connection board end respectively with yoke 20
Weld with the end of patch panel 50, increased the quantity of solder joint, do not know loop resistance value, easily affect the temperature rise of chopper
Energy.In the present embodiment, as regulating part 20 can be applied directly on bimetal leaf 30, therefore without the need in patch panel 50 and magnetic
Soft connection board is set between yoke 20, therefore, it is possible to make the hot dropout adjusting part structure of the present embodiment more succinct, production is reduced
Difficulty and cost, and number of welds is reduced, so as to the temperature rise model for ensureing chopper is more stable.
In the present embodiment, the regulating part 22 include the screwed hole 211 being arranged on the baffle plate 21, be resisted against it is described
Nut on baffle plate 21, and the screw 222 of the screwed hole 221 and the nut is inserted, screw 222 is in screwed hole 221
The mode for screwing promotes the bimetal leaf 30 to bend near tripping mechanism.
In the present embodiment, the screwed hole 221 is flange screwed hole, and flange screwed hole is easy to process compared with multifibres in hole
Screw thread, and due to yoke 20 it is relatively thin, by hole processing be flange screwed hole, the work of firm fixing screws 222 can be played
With.
Specifically, the screwed hole 221 is arranged on the middle and upper part of the baffle plate 21, and such screw 222 can leaned on as far as possible
On position promote the bimetal leaf 30, it is easier to make bimetal leaf 30 be easy to stress bending.
In the present embodiment, the lower end of the side of the yoke 20 and the bimetal leaf 30 is weldingly connected.
Further, also including patch panel 50, the opposite side of the lower end of the patch panel 50 and 20 lower end of the yoke is welded
It is connected.
Obviously, above-described embodiment is only intended to clearly illustrate example, not the restriction to embodiment.For
For those of ordinary skill in the art, the change or change of other multi-forms can also be made on the basis of the above description
It is dynamic.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or change
Among moving still in the protection domain of the invention.
Claims (6)
1. a kind of hot dropout adjusting part, it is characterised in that including yoke (20) and the double gold being arranged in the yoke (20)
Category piece (30), the yoke (20) are provided with baffle plate (21) near the side of the bimetal leaf (30), and regulating part (22) is arranged
On the baffle plate (21), regulating part (22) elongation is contradicted in the bimetal leaf (30), so that the bimetal leaf
(30) near tripping mechanism；After the regulating part (22) is shunk, bimetal leaf (30) elastic reset, with away from dropout machine
Structure.
2. a kind of hot dropout adjusting part according to claim 1, it is characterised in that the regulating part (22) is including setting
Screwed hole (211), the nut being resisted against on the baffle plate (21) on the baffle plate (21), and insert the screwed hole
(221) and the nut screw (222).
3. a kind of hot dropout adjusting part according to claim 2, it is characterised in that the screwed hole (211) is flange
Screwed hole.
4. a kind of hot dropout adjusting part according to Claims 2 or 3, it is characterised in that the screwed hole (211) is arranged
In the middle and upper part of the baffle plate (21).
5. a kind of hot dropout adjusting part according to claim 1, it is characterised in that the side of the yoke (20) and institute
The lower end for stating bimetal leaf (30) is weldingly connected.
6. a kind of hot dropout adjusting part according to claim 5, it is characterised in that also including patch panel (50), described
The lower end of patch panel (50) is weldingly connected with the opposite side of the yoke (20) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830261.6A CN104465248B (en) | 2014-12-26 | 2014-12-26 | A kind of hot dropout adjusting part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830261.6A CN104465248B (en) | 2014-12-26 | 2014-12-26 | A kind of hot dropout adjusting part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104465248A CN104465248A (en) | 2015-03-25 |
| CN104465248B true CN104465248B (en) | 2017-03-29 |
Family
ID=52911133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410830261.6A Active CN104465248B (en) | 2014-12-26 | 2014-12-26 | A kind of hot dropout adjusting part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104465248B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833810A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | Breaker arc leading angle |
| CN107833805B (en) * | 2017-10-26 | 2024-09-20 | 上海良信电器股份有限公司 | Thermal tripping system of circuit breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107902A (en) * | 1985-10-26 | 1987-05-06 | 西屋电气公司 | Circuit breaker with bimetallic and alignment formation |
| CN203367175U (en) * | 2013-08-13 | 2013-12-25 | 德力西电气有限公司 | Thermal tripping device support |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001084885A (en) * | 1999-09-13 | 2001-03-30 | Fuji Electric Co Ltd | Overcurrent tripping device for circuit breaker |
| CN2870150Y (en) * | 2005-09-27 | 2007-02-14 | 宁波奇乐电器实业总公司 | Over-current releasing device of low-voltage circuit breaker |
| CN201336259Y (en) * | 2009-01-14 | 2009-10-28 | 德力西电气有限公司 | Adjustable releasing device for circuit breaker |
| CN201327800Y (en) * | 2009-03-31 | 2009-10-14 | 上海电科博耳电器开关有限公司 | Alarm non-tripping device |
| JP5333289B2 (en) * | 2010-02-25 | 2013-11-06 | 三菱電機株式会社 | Circuit breaker |
| CN202651023U (en) * | 2012-06-01 | 2013-01-02 | 浙江鼎威科技有限公司 | Molded case circuit breaker with shunting thermo tripping protection |
| CN204242976U (en) * | 2014-12-26 | 2015-04-01 | 德力西电气有限公司 | A kind of hot dropout adjusting part |
-
2014
- 2014-12-26 CN CN201410830261.6A patent/CN104465248B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107902A (en) * | 1985-10-26 | 1987-05-06 | 西屋电气公司 | Circuit breaker with bimetallic and alignment formation |
| CN203367175U (en) * | 2013-08-13 | 2013-12-25 | 德力西电气有限公司 | Thermal tripping device support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104465248A (en) | 2015-03-25 |
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| GR01 | Patent grant |