CN110491744A - A kind of automatic protection breakers based on temperature control shape memory alloy spring - Google Patents
A kind of automatic protection breakers based on temperature control shape memory alloy spring Download PDFInfo
- Publication number
- CN110491744A CN110491744A CN201910864124.7A CN201910864124A CN110491744A CN 110491744 A CN110491744 A CN 110491744A CN 201910864124 A CN201910864124 A CN 201910864124A CN 110491744 A CN110491744 A CN 110491744A
- Authority
- CN
- China
- Prior art keywords
- temperature control
- alloy spring
- shape memory
- memory alloy
- control shape
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
-
- 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
- H01H71/145—Electrothermal mechanisms using shape memory materials
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The present invention relates to a kind of automatic protection breakers based on temperature control shape memory alloy spring, belong to electric field.It includes temperature control shape memory alloy spring, reset spring, fixed block, Live line Zero line, fastening bolt, contact structures, guide rail, sliding block, conducting wire folding and unfolding knot, heat transfer conducting wire.The invention takes full advantage of the memory effect of temperature control shape memory alloy spring; when the load that firewire and zero curve are undertaken is more than the rated power of the breaker; firewire and zero curve are excessive because of the electric current passed through; the fuel factor of electric current makes firewire and zero curve excessive heating; temperature control shape memory alloy spring is transferred heat to by heat transfer conducting wire; alloy spring is pushed sliding block to move downward along guide rail by thermal stretching; contact structures are finally caused to be in separation; breaker is in an off state, and plays overload protective function and relevant staff is reminded to deal with measure.It will shrink to raw footage when alloy spring is restored to normal temperature, sliding block moves upwards under the action of reset spring along guide rail, and contact structures contact again, and breaker is in running order.
Description
Technical field
The present invention relates to a kind of automatic protection breakers based on temperature control shape memory alloy spring, belong to electric field.
Background technique
With the high speed development of science and technology, technology of the various electric devices of electric field in terms of design and manufacture is all obtained
The raising of different level is arrived, greatly expand electric device uses field and usage degree.Breaker is a typical case
Electric field device, with very extensive, therefore the quality of breaker quality can by directly determine that circuit system works
By property and stability.At present all there is the functions such as overload protection, but the movement of its overload protection in the breaker on domestic and international market
When it is irreversible, when this kind of breaker disconnects in the event of overloading, after excluding overload factor, breaker need to be closed manually, most
Make circuit system be in normal working condition eventually, reduces the operational efficiency of circuit system, weaken to a certain extent
The degree of automation of circuit system operation.
It finds, is write from Panzhihua Iron and steel LLC's steel research by prior art documents
The breaker mentioned of " automatic protection breakers " patent peak values of ac can be detected, using pulse technique to reach
To the sensitive effect of momentary power failure, protect entire circuit system, but the breaker include rectification circuit, regulated power supply,
The disadvantages of systems such as fault detection circuit, structure is complicated, and rate of breakdown is high.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to propose a kind of based on temperature control shape memory alloy spring
Automatic protection breakers, the invention take full advantage of the memory effect of temperature control shape memory alloy spring, when firewire and zero curve institute
When the load undertaken is more than the rated power of the breaker, because the electric current passed through is excessive, the fuel factor of electric current makes for firewire and zero curve
Firewire and zero curve excessive heating are obtained, transfers heat to temperature control shape memory alloy spring, alloy spring by heat transfer conducting wire
By thermal stretching to push sliding block to move downward along guide rail, contact structures is finally caused to be in separation, breaker, which is in, disconnects shape
State plays overload protective function and relevant staff is reminded to deal with measure.When alloy spring is restored to normal temperature
It will shrink to raw footage, sliding block moves upwards under the action of reset spring along guide rail, and contact structures contact again, at breaker
In working condition, not only play the role of the self-protection of breaker overload, but also realizes the full-automation that breaker is opened and led to.
The present invention to achieve the goals above, adopts the following technical scheme that
A kind of automatic protection breakers based on temperature control shape memory alloy spring, it include temperature control shape memory alloy spring,
Reset spring, fixed block, Live line Zero line, fastening bolt, contact structures, guide rail, sliding block, conducting wire folding and unfolding knot, heat transfer conducting wire.
Temperature control shape memory alloy spring one end is connect with fixed block, and the other end connect and fixes with heat transfer conducting wire
On sliding block.
Described reset spring one end is fixed on fixed block, and the other end is fixed on sliding block.
The Live line Zero line is fixed in contact structures with fastening bolt.
The contact structures are designed as the form of embracing.
The guide rail is assemblied on the fixation bottom plate of breaker.
The sliding block is insulating materials, is assemblied on guide rail.
Heat transfer conducting wire one end is connect by bolt with contact structures, the other end and temperature control shape memory alloy spring
Connection.
The working principle of the invention is: when the load that firewire and zero curve are undertaken is more than the rated power of the breaker,
Firewire and zero curve are because the electric current passed through is excessive, and the fuel factor of electric current makes firewire and zero curve excessive heating, by heat transfer conducting wire
Temperature control shape memory alloy spring is transferred heat to, according to the memory effect of temperature control shape memory alloy spring, alloy spring
By thermal stretching to push sliding block to move downward along guide rail, contact structures is finally caused to be in separation, breaker, which is in, disconnects shape
State plays overload protective function and relevant staff is reminded to deal with measure.When alloy spring is restored to normal temperature
It will shrink to raw footage, sliding block moves upwards under the action of reset spring along guide rail, and contact structures contact again, at breaker
In working condition, not only play the role of the self-protection of breaker overload, but also realizes the full-automation that breaker is opened and led to.
Beneficial effects of the present invention:
The beneficial effects of the present invention are memory effect characteristic possessed by temperature control shape memory alloy spring is utilized, work as circuit
When system overload, contact structures excessive heating transfers heat to alloy spring by heat transfer conducting wire, and alloy spring is heated to be stretched
Long finally to cause contact structures to be in separation to push sliding block to move downward along guide rail, breaker is in an off state, plays
Overload protective function.It will shrink to raw footage when alloy spring is restored to normal temperature, sliding block is under the action of reset spring
It is moved upwards along guide rail, contact structures contact again, and breaker is in running order, and whole process realizes the overload of breaker
Protection and full-automatic lead to and open.
Detailed description of the invention
Fig. 1 is overall structure main view of the invention.
Specific embodiment
In order to understand that technical solution of the present invention and advantage more clearly, with reference to the accompanying drawing to implementation of the invention
Example elaborates: the present embodiment is implemented under the premise of the technical scheme of the present invention, gives detailed embodiment
With specific operating process, but protection scope of the present invention is not limited to following embodiments.
A kind of automatic protection breakers based on temperature control shape memory alloy spring include ten component compositions: temperature control
Shape memory alloy spring (1), reset spring (2), fixed block (3), Live line Zero line (4), fastening bolt (5), contact structures
(6), guide rail (7), sliding block (8), conducting wire folding and unfolding knot (9), heat transfer conducting wire (10).
Described temperature control shape memory alloy spring (1) one end is connect with fixed block (3), the other end and heat transfer conducting wire (10)
It is connected and fixed on sliding block (8).
Described reset spring (2) one end is fixed on fixed block (3), and the other end is fixed on sliding block (8).
The Live line Zero line (4) is fixed on contact structures (6) with fastening bolt (5).
The contact structures (6) are designed as the form of embracing, and increase its contact area.
The guide rail (7) is assemblied on the fixation bottom plate of breaker.
The sliding block (8) is insulating materials, prevents from that short circuit phenomenon occurs between Live line Zero line (4), while being assembled
It can slide up and down on guide rail (7) and along guide rail (7).
Described heat transfer conducting wire (10) one end is connect by bolt with contact structures (6), the other end and temperature control shape memory
Alloy spring (1) connection.
Claims (4)
1. a kind of automatic protection breakers based on temperature control shape memory alloy spring, it is characterised in that: it includes temperature control shape
Memory alloy spring (1), fixed block (3), Live line Zero line (4), fastening bolt (5), contact structures (6), is led at reset spring (2)
Rail (7), sliding block (8), conducting wire folding and unfolding knot (9), heat transfer conducting wire (10).
2. a kind of automatic protection breakers based on temperature control shape memory alloy spring according to claim 1, feature
Be: the contact structures (6) are designed as the form of embracing.
3. a kind of automatic protection breakers based on temperature control shape memory alloy spring according to claim 1, feature
Be: the sliding block (8) is insulating materials, is assemblied on guide rail (7), and can move up and down along guide rail (7).
4. a kind of automatic protection breakers based on temperature control shape memory alloy spring according to claim 1, feature
Be: described heat transfer conducting wire (10) one end is connect by bolt with contact structures (6), the other end and temperature control marmem
Spring (1) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864124.7A CN110491744A (en) | 2019-09-12 | 2019-09-12 | A kind of automatic protection breakers based on temperature control shape memory alloy spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864124.7A CN110491744A (en) | 2019-09-12 | 2019-09-12 | A kind of automatic protection breakers based on temperature control shape memory alloy spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110491744A true CN110491744A (en) | 2019-11-22 |
Family
ID=68557900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864124.7A Pending CN110491744A (en) | 2019-09-12 | 2019-09-12 | A kind of automatic protection breakers based on temperature control shape memory alloy spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110491744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792613A (en) * | 2022-03-30 | 2022-07-26 | 中群电气有限公司 | Overload quick recovery circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63285834A (en) * | 1987-05-18 | 1988-11-22 | Tokieda Naomitsu | Motor protective device |
| JPH09231891A (en) * | 1996-02-20 | 1997-09-05 | Ngk Insulators Ltd | Current limiting breaker |
| CN205563311U (en) * | 2016-05-03 | 2016-09-07 | 厦门理工学院 | Temperature control device for centrally installed switchgear |
| CN108475601A (en) * | 2016-01-14 | 2018-08-31 | 舒尔特公司 | Thermal cut-off can be activated |
-
2019
- 2019-09-12 CN CN201910864124.7A patent/CN110491744A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63285834A (en) * | 1987-05-18 | 1988-11-22 | Tokieda Naomitsu | Motor protective device |
| JPH09231891A (en) * | 1996-02-20 | 1997-09-05 | Ngk Insulators Ltd | Current limiting breaker |
| CN108475601A (en) * | 2016-01-14 | 2018-08-31 | 舒尔特公司 | Thermal cut-off can be activated |
| CN205563311U (en) * | 2016-05-03 | 2016-09-07 | 厦门理工学院 | Temperature control device for centrally installed switchgear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792613A (en) * | 2022-03-30 | 2022-07-26 | 中群电气有限公司 | Overload quick recovery circuit breaker |
| CN114792613B (en) * | 2022-03-30 | 2023-07-25 | 中群电气有限公司 | Overload quick recovery circuit breaker |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191122 |