CN103903928B - A kind of breaker with heat loss through convection housing - Google Patents
A kind of breaker with heat loss through convection housing Download PDFInfo
- Publication number
- CN103903928B CN103903928B CN201410153430.7A CN201410153430A CN103903928B CN 103903928 B CN103903928 B CN 103903928B CN 201410153430 A CN201410153430 A CN 201410153430A CN 103903928 B CN103903928 B CN 103903928B
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- housing
- gas flow
- flow passage
- contact
- static contact
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The invention discloses a kind of breaker with heat loss through convection housing, comprise housing, housing top is provided with arc-chutes, and enclosure interior is provided with static contact and moving contact, and static contact is and contacts or separated position with moving contact. Wherein, housing is provided with one-way gas flow passage, and in the time that dynamic and static contact is contact condition, gas channel is opened, and outside air can enter enclosure interior by one-way gas flow passage, by air, is dispelled the heat in breaker inside; In the time of the separated state of dynamic and static contact, in dynamic/static contact separation process, produce high-temperature electric arc, in housing, gas is heated and acutely expands, now one-way gas flow passage closure, make enclosure interior keep essential air pressure intensity, ensure that electric arc enters arc-chutes and extinguishes, avoid charged gas directly to go out from below by one-way gas flow passage simultaneously, contact and cause short circuit phenomenon with external metallization parts. The present invention is simple in structure, is easy to apply.
Description
Technical field
The present invention relates to the housing of breaker, relate in particular to a kind of breaker with heat loss through convection housing.
Background technology
Breaker is a kind of device for switching that is used for distributing electric energy and protection circuit and power-supply device in distribution network that is applied to, and relies onThe joint of dynamic and static contact and the circulation and the disjunction that separate to realize electric current, when dynamic and static contact is during in engagement state, owing to opening circuitThe internal resistance of the device heat that has a resistance itself; And the transformer using in breaker, is made up of ironcore choke air core coil and ironcore chokeBecause of the self-resistance heat that has a resistance. The problem that researcher faces is that the heat how Shell of circuit breaker inside being produced is safe, fastSpeed and be effectively delivered in air.
The heat radiation of breaker at present mainly relies on copper bar to spread out of in heat conducting mode, and housing itself can only lack with radiation modeAmount heat radiation, the pattern of housing three direction sealings has determined that it cannot carry out effective cross-ventilation heat radiation; Number of patent application isThe patent of CN201010503042.9 provides a kind of new radiating mode, and the position that transformer is installed on insulation shell is provided withThe air inlet communicating with the external world, has the air outlet being connected with insulation shell inner chamber on insulation shell, make insulation shell inner chamber and extraneous shapeBecome cross-ventilation to reach the effect of heat radiation; But in the time of the separated state of dynamic and static contact, insulation shell inner chamber gas has from enteringThe reverse hidden danger of going out of gas port, can make insulation shell inner chamber air pressure decline, and electric arc cannot enter arc-chutes and extinguish, if charged gasDirectly go out from air inlet, contact with external metallization parts, can cause short circuit phenomenon, cause breaker to burn out, circuit cannot be normalOperation.
Summary of the invention
In order to overcome the problems that in prior art, breaker heat radiation exists, the invention provides a kind of good heat dissipation effect, structureSimply, can ensure a kind of breaker with heat loss through convection housing of the seal of enclosure interior air pressure intensity and housing.
In order to achieve the above object, the technical solution used in the present invention is: a kind of breaker with heat loss through convection housing, comprisesHousing, housing top is provided with arc-chutes, and enclosure interior is provided with static contact and moving contact, and described static contact is and contacts or divide with moving contactOpen state, described housing is provided with one-way gas flow passage.
Further, described half-duplex channel is located at the bottom of housing.
Further, described one-way gas flow passage comprises fixed head and portable plate, and portable plate is pressed against fixed head by flexible memberIn surface groove; Described fixed head is provided with at least one first pore, and described portable plate is provided with at least one second pore, theMutually stagger and arrange in the position of one pore and the second pore.
Adopt after above technical scheme, the beneficial effect that the present invention reaches is: 1. because housing is provided with one-way gas flow passage, whenWhen dynamic and static contact is contact condition, gas channel is opened, and outside air can enter enclosure interior by one-way gas flow passage, logicalCrossing air dispels the heat to breaker inside; In the time of the separated state of dynamic and static contact, in dynamic/static contact separation process, produce high-temperature electricArc, in housing, gas is heated and acutely expands, and now one-way gas flow passage closure, makes enclosure interior keep essential air pressure intensity, protectsCard electric arc enters arc-chutes and extinguishes, and avoids charged gas directly to go out from below by one-way gas flow passage, with external metallization simultaneouslyParts contact causes short circuit phenomenon; 2. simple in structure being easy to of this invention applied.
Brief description of the drawings
Fig. 1 is prior art structural representation;
Fig. 2 is the structural representation of the dynamic and static contact of the present invention while being contact condition;
Structural representation when Fig. 3 is the separated state of the dynamic and static contact of the present invention;
Fig. 4 is one-way gas flow channel design schematic diagram;
Fig. 5 is the generalized section of one-way gas flow passage while opening;
Fig. 6 is one-way gas flow passage structural representation while opening;
Generalized section when Fig. 7 is one-way gas flow passage closure;
Structural representation when Fig. 8 is one-way gas flow passage closure;
Wherein, housing 1, arc-chutes 2, static contact 3, moving contact 4, one-way gas flow passage 5, electric arc 6, fixed head 11,Portable plate 12, the first pore 13, the second pores 14, flexible member 15.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 2 and 3, a kind of breaker with heat loss through convection housing, comprises housing 1, arc-chutes 2, and static contact 3,Moving contact 4, one-way gas flow passage 5, electric arc 6, described housing 1 top is provided with arc-chutes 2, housing 1 inside be provided be contact orThe moving contact 4 of released state and static contact 3, be provided with one-way gas flow passage 5 in the bottom of housing 1.
As shown in Figure 5, one-way gas flow passage 5 is made up of one deck fixed head 11 and one deck portable plate 12, and portable plate 12 passes through bulletProperty element 15 is pressed against in fixed head 11 surface grooves. In housing without compared with in atmospheric pressure situation, portable plate 12 and fixed head 11Rely on flexible member 15 to be separated position.
As shown in Figure 4, fixed head 11 is provided with at least one first pore 13, and portable plate is provided with at least one second pore14, stagger mutually in pore position.
As shown in Figure 2, when moving contact 4 is with static contact 3 during in contact condition, one-way gas flow passage 5 is opened, and outside air is logicalThe one-way gas flow passage 5 of crossing housing 1 bottom enters housing 1 inside, flows out via arc-chutes 3, reaches the effect of heat loss through convection.As shown in Fig. 3, Fig. 7, when moving contact 4 during in released state, produces high-temperature electric arc 6, housing 1 with static contact 3 between contactInterior gas violent expansion of being heated, the gas pressure intensity of housing 1 inside overcomes the elastic force of compression elastic element 15, make portable plate 12 withFixed head 11 is contact condition, because its first pore 13 and the dislocation of the second pore 14 are arranged, and one-way gas flow passage 5 closures,Ensured the air pressure intensity in housing 1, the electric arc 6 that moving contact 4 and static contact 3 are produced in separation process enters arc-chutes 3And extinguish, avoided charged gas directly to go out from one-way gas flow passage 5 simultaneously, contact and cause short circuit phenomenon with external metallization parts.
Claims (2)
1. a breaker with heat loss through convection housing, comprises housing, and housing top is provided with arc-chutes, and enclosure interior is provided with static contactAnd moving contact, described static contact is and contacts or separated position with moving contact, it is characterized in that: it is logical that described housing is provided with one-way gas flowRoad; Described one-way gas flow passage comprises fixed head and portable plate, and portable plate is pressed against in fixed head surface groove by flexible member;Described fixed head is provided with at least one first pore, and described portable plate is provided with at least one second pore, the first pore and secondMutually stagger and arrange in the position of pore.
2. a kind of breaker with heat loss through convection housing according to claim 1, is characterized in that: described one-way gas flow passageBe located at the bottom of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153430.7A CN103903928B (en) | 2014-04-16 | 2014-04-16 | A kind of breaker with heat loss through convection housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153430.7A CN103903928B (en) | 2014-04-16 | 2014-04-16 | A kind of breaker with heat loss through convection housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103903928A CN103903928A (en) | 2014-07-02 |
| CN103903928B true CN103903928B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410153430.7A Active CN103903928B (en) | 2014-04-16 | 2014-04-16 | A kind of breaker with heat loss through convection housing |
Country Status (1)
| Country | Link |
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| CN (1) | CN103903928B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3063174B1 (en) * | 2017-02-22 | 2019-04-19 | Schneider Electric Industries Sas | APPARATUS FOR CUTTING AN ELECTRICAL CURRENT WITH SEPARABLE ELECTRICAL CONTACTS AND CUTTING IN THE AIR |
| CN109935501B (en) * | 2019-03-29 | 2024-07-02 | 厦门宏发开关设备有限公司 | Frame circuit breaker with heat dissipation function |
| CN111405829B (en) * | 2020-04-08 | 2022-06-03 | 深圳传音控股股份有限公司 | Heat dissipation structure, method and terminal |
| CN114446721B (en) * | 2020-11-02 | 2023-12-01 | 江苏洛凯机电股份有限公司 | Universal circuit breaker with low temperature rise |
| CN113097019B (en) * | 2021-02-25 | 2023-05-05 | 温州华嘉电器有限公司 | Circuit breaker with over-temperature protection function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564292A (en) * | 2004-04-19 | 2005-01-12 | 西安交通大学 | Low voltage current-limiting breaker based on forced air explusion |
| CN101071701A (en) * | 2006-05-11 | 2007-11-14 | 富士电机机器制御株式会社 | Circuit breaker |
| JP2009140838A (en) * | 2007-12-10 | 2009-06-25 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN102386036A (en) * | 2010-09-03 | 2012-03-21 | 富士电机机器制御株式会社 | Circuit breaker |
| CN102446662A (en) * | 2010-09-30 | 2012-05-09 | 北京人民电器厂有限公司 | Breaker body with convection radiating effect |
| CN203774233U (en) * | 2014-04-16 | 2014-08-13 | 大全集团有限公司 | Circuit breaker with convection heat radiation shell |
-
2014
- 2014-04-16 CN CN201410153430.7A patent/CN103903928B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564292A (en) * | 2004-04-19 | 2005-01-12 | 西安交通大学 | Low voltage current-limiting breaker based on forced air explusion |
| CN101071701A (en) * | 2006-05-11 | 2007-11-14 | 富士电机机器制御株式会社 | Circuit breaker |
| JP2009140838A (en) * | 2007-12-10 | 2009-06-25 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN102386036A (en) * | 2010-09-03 | 2012-03-21 | 富士电机机器制御株式会社 | Circuit breaker |
| CN102446662A (en) * | 2010-09-30 | 2012-05-09 | 北京人民电器厂有限公司 | Breaker body with convection radiating effect |
| CN203774233U (en) * | 2014-04-16 | 2014-08-13 | 大全集团有限公司 | Circuit breaker with convection heat radiation shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103903928A (en) | 2014-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151228 Address after: 211106 Jiangning economic and Technological Development Zone, Jiangsu, Hidden Dragon Road, No. 28, No. Applicant after: NANJING DAQO ELECTRIC INSTITUTE CO., LTD. Address before: 212211 Jiangsu city of Zhenjiang province Yangzhong city new town of New South Road, No. 66 Applicant before: Daquan Group Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170911 Address after: Xinba Daquan 212200 Yangzhong Road, Zhenjiang City, Jiangsu province 66 Patentee after: Jiangsu Daquan Kai Kai switch Co., Ltd. Address before: 211106 Jiangning economic and Technological Development Zone, Jiangsu, Hidden Dragon Road, No. 28, No. Patentee before: NANJING DAQO ELECTRIC INSTITUTE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212200 No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Daquan Kaifan switch Co.,Ltd. Address before: 212200 No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: Jiangsu Daquan Kaifan Switch Co.,Ltd. |