CN103474302B - A kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic - Google Patents
A kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic Download PDFInfo
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- CN103474302B CN103474302B CN201310351624.3A CN201310351624A CN103474302B CN 103474302 B CN103474302 B CN 103474302B CN 201310351624 A CN201310351624 A CN 201310351624A CN 103474302 B CN103474302 B CN 103474302B
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- adjusting rod
- temperature control
- breaker
- control element
- plastic casing
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Abstract
The present invention relates to the automatic temperature control device of the overlond trip characteristic in breaker of plastic casing.The present invention adopts following scheme: a kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic, it is characterized in that: include temperature control element, adjusting rod and draw bar, adjusting rod slippage is arranged on draw bar, the contact position corresponding position of the bimetal leaf of adjusting rod and circuit breaker is provided with inclined-plane or curved surface, temperature control element vary with temperature occur bending or flexible time can drive the slippage of adjusting rod on draw bar.By adopting such scheme, the invention provides a kind of automatic temperature control device that the novel breaker of plastic casing overlond trip characteristic of fine setting can occur according to the change of temperature self.
Description
Technical field
The present invention relates to the automatic temperature control device of the overlond trip characteristic in breaker of plastic casing.
Background technology
In mold cased circuit breaker, when the electric current passed through in circuit breaker is greater than rated current, bimetal leaf heated bending, and amount of bow is greater than the gap between bimetal leaf and draw bar, draw bar is promoted by bimetal leaf, makes circuit breaker tripping, thus realizes the overload protection to circuit and equipment; Therefore, the gap between bimetal leaf and draw bar determines the overlond trip characteristic in mold cased circuit breaker.But overload characteristic when traditional mold cased circuit breaker dispatches from the factory is such as 20 DEG C of adjustment under fiducial temperature, and the ambient temperature of circuit breaker real work is generally at-5 ~ 40 DEG C.When exceeding or lower than fiducial temperature; because bimetal leaf is influenced by ambient temperature; can distortion be produced, cause the error that circuit breaker overlond trip Property comparison is large, even lost efficacy; make circuit breaker cannot realize effective overload protection; therefore, when higher than fiducial temperature, need to fall and hold use; and when lower than fiducial temperature, may in the action protection time exceeding regulation.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, a kind of tripping can either pinned in breaker mechanism is provided, the slippage on draw bar of thermal control compensate element drives adjusting rod can be passed through again, change the impulse stroke of bimetal leaf, thus realize the automatic temperature control device of the novel breaker of plastic casing overlond trip characteristic of temperature automatic adjustment.
Realize above-mentioned purpose, the present invention adopts following technical scheme: a kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic, it is characterized in that: include temperature control element, adjusting rod and draw bar, adjusting rod slippage is arranged on draw bar, the contact position corresponding position of the bimetal leaf of adjusting rod and circuit breaker is provided with inclined-plane or curved surface, described temperature control element one end is directly or indirectly arranged on Shell of circuit breaker, the other end is arranged on adjusting rod, temperature control element vary with temperature occur bending or flexible time can drive the slippage of adjusting rod on draw bar, the slippage of adjusting rod realizes the change relative to the contact position of bimetal leaf of the inclined-plane of adjusting rod or curved surface.
By adopting such scheme, temperature self adjusting and compensation can be carried out to Thermomagnetic type breaker of plastic casing overlond trip characteristic according to actual environment temperature, to ensure that Thermomagnetic type breaker of plastic casing is in the wide temperature scope of application, pyromagnetic fixed breaker can be avoided due to the distortion of temperature-sensing element, and cause the skew of overload characteristic, also can not adopt simultaneously traditional in high temperature environments appearance is fallen.
The further setting of the present invention is: described draw bar is provided with chute near the side of the bimetal leaf of circuit breaker, and described adjusting rod is placed between chute, and the side of described chute is provided with recess, and inclined-plane or the curved surface of described adjusting rod appear from recess; The link position of described temperature control element and adjusting rod is positioned at the upper side of adjusting rod, and the upper side of described adjusting rod is fixed with two spacers, and temperature control element one end is placed in the connection forming temperature control element one end and adjusting rod between two spacers; The link position of described the temperature control element hinged upper side or described temperature control element and adjusting rod that are arranged on adjusting rod is positioned on the end face of adjusting rod, and described temperature control element becomes straight plate shape or V-arrangement.
By adopting such scheme, be optimize product structure further, the convenience of performance and use, wherein to adopt above-mentioned several mode to arrange more reasonable for temperature control element.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the embodiment of the present invention two;
Fig. 3 is the end view of the embodiment of the present invention two;
Fig. 4 is the structural representation of the embodiment of the present invention three;
Fig. 5 is the structural representation of the embodiment of the present invention four;
Fig. 6 is the structural representation of the embodiment of the present invention five.
Embodiment
As shown in Figure 1, a kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic, include temperature control element 1, adjusting rod 2 and draw bar 3, adjusting rod 2 slippage is arranged on draw bar 3, adjusting rod 2 is provided with inclined-plane or curved surface 21 with the contact position corresponding position of the bimetal leaf 4 of circuit breaker, described temperature control element 1 one end is directly or indirectly arranged on Shell of circuit breaker, the other end is arranged on adjusting rod 2, temperature control element 1 vary with temperature occur bending or flexible time can drive the slippage of adjusting rod 2 on draw bar 3, the slippage of adjusting rod 2 realizes the inclined-plane of adjusting rod 2 or curved surface 21 changes relative to the contact position of bimetal leaf 4.By adopting such scheme, temperature self adjusting can be carried out to Thermomagnetic type breaker of plastic casing overlond trip characteristic according to actual environment temperature, to ensure that Thermomagnetic type breaker of plastic casing is in the wide temperature scope of application, the pyromagnetic fixed distortion due to temperature-sensing element can be avoided, and cause the skew of overload characteristic, also can not adopt simultaneously traditional in high temperature environments appearance is fallen.
In embodiments of the present invention, described draw bar 3 is provided with chute 32 near the side of the bimetal leaf 4 of circuit breaker, and the inclined-plane of described adjusting rod 2 or curved surface 21 appear from the recess 31 that chute 32 side is offered; Described temperature control element 1 and the link position of adjusting rod 2 are positioned at the upper side 22 of adjusting rod 2, and the upper side 22 of described adjusting rod 2 is fixed with two spacers 23, and temperature control element 1 one end is placed in the connection forming temperature control element 1 one end and adjusting rod 2 between two spacers 23; Certainly we also can on hinged for described temperature control element 1 upper side 22 being arranged on adjusting rod 2 as shown in Figures 2 and 3, also can be that described temperature control element 1 is positioned on the end face of adjusting rod 2 with the link position of adjusting rod 2 in addition, as shown in Figure 4 and Figure 5, in the present embodiment, described temperature control element can be set to V-arrangement, as Fig. 6; Temperature control element 1 also can be arranged on other other position of adjusting rod 2 in the present invention.
Claims (5)
1. the automatic temperature control device of a breaker of plastic casing overlond trip characteristic, it is characterized in that: include temperature control element, adjusting rod and draw bar, adjusting rod slippage is arranged on draw bar, the contact position corresponding position of the bimetal leaf of adjusting rod and circuit breaker is provided with inclined-plane or curved surface, described temperature control element one end is directly or indirectly arranged on Shell of circuit breaker, the other end is arranged on adjusting rod, temperature control element vary with temperature occur bending or flexible time can drive the slippage of adjusting rod on draw bar, the slippage of adjusting rod realizes the change relative to the contact position of bimetal leaf of the inclined-plane of adjusting rod or curved surface, described draw bar is provided with chute near the side of the bimetal leaf of circuit breaker, described adjusting rod is placed on chute, the side of described chute is provided with recess, inclined-plane or the curved surface of described adjusting rod appear from recess.
2. the automatic temperature control device of breaker of plastic casing overlond trip characteristic according to claim 1, it is characterized in that: the link position of described temperature control element and adjusting rod is positioned at the upper side of adjusting rod, the upper side of described adjusting rod is fixed with two spacers, and temperature control element one end is placed in the connection forming temperature control element one end and adjusting rod between two spacers.
3. the automatic temperature control device of breaker of plastic casing overlond trip characteristic according to claim 1, is characterized in that: the hinged upper side being arranged on adjusting rod of described temperature control element.
4. the automatic temperature control device of breaker of plastic casing overlond trip characteristic according to claim 1, is characterized in that: the link position of described temperature control element and adjusting rod is positioned on the end face of adjusting rod.
5. the automatic temperature control device of breaker of plastic casing overlond trip characteristic according to claim 4, is characterized in that: described temperature control element becomes straight plate shape or V-arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351624.3A CN103474302B (en) | 2013-08-13 | 2013-08-13 | A kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351624.3A CN103474302B (en) | 2013-08-13 | 2013-08-13 | A kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103474302A CN103474302A (en) | 2013-12-25 |
| CN103474302B true CN103474302B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310351624.3A Active CN103474302B (en) | 2013-08-13 | 2013-08-13 | A kind of automatic temperature control device of breaker of plastic casing overlond trip characteristic |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020216415B4 (en) * | 2020-12-21 | 2023-03-02 | Siemens Aktiengesellschaft | Electrical switch with a thermal trip unit and method for adapting a thermal trip curve |
Citations (4)
| 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 |
| US5821839A (en) * | 1996-08-23 | 1998-10-13 | Square D Company | Improved calibration means for a circuit breaker |
| GB2374983A (en) * | 2001-03-17 | 2002-10-30 | Moeller Gmbh | Thermal tripping arrangement with temperature compensation |
| CN203491203U (en) * | 2013-08-13 | 2014-03-19 | 德力西电气有限公司 | Temperature automatic regulating apparatus with molded case circuit breaker overload release characteristics |
-
2013
- 2013-08-13 CN CN201310351624.3A patent/CN103474302B/en active Active
Patent Citations (4)
| 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 |
| US5821839A (en) * | 1996-08-23 | 1998-10-13 | Square D Company | Improved calibration means for a circuit breaker |
| GB2374983A (en) * | 2001-03-17 | 2002-10-30 | Moeller Gmbh | Thermal tripping arrangement with temperature compensation |
| CN203491203U (en) * | 2013-08-13 | 2014-03-19 | 德力西电气有限公司 | Temperature automatic regulating apparatus with molded case circuit breaker overload release characteristics |
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|---|---|
| CN103474302A (en) | 2013-12-25 |
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