CN103903928A - Breaker with convection heat dissipation shell - Google Patents
Breaker with convection heat dissipation shell Download PDFInfo
- Publication number
- CN103903928A CN103903928A CN201410153430.7A CN201410153430A CN103903928A CN 103903928 A CN103903928 A CN 103903928A CN 201410153430 A CN201410153430 A CN 201410153430A CN 103903928 A CN103903928 A CN 103903928A
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- shell
- contact
- housing
- breaker
- moving contact
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The invention discloses a breaker with a convection heat dissipation shell. The breaker comprises the shell, an arc extinguish chamber is formed in the upper portion of the shell, a fixed contact and a moving contact are arranged in the shell, and the fixed contact and the moving contact are in a contacted or separate state. A one-way airflow channel is formed in the shell, when the moving contact and the fixed contact are in a contact state, the airflow channel is opened, external air can enter the inner portion of the shell through the one-way airflow channel, and the air is used for conducting heat dissipation on the inner portion of the breaker. When the moving contact and the fixed contact are in a separate state, high-temperature electric arc is generated in the separation process of the moving contact and the fixed contact, the air in the shell is heated and swells fiercely, at the moment, the one-way airflow channel is closed to enable the inner portion of the shell to keep necessary pressure intensity, therefore, it is guaranteed that the electric arc enters the arc extinguish chamber and is extinguished, and meanwhile the situation that short circuit is caused due to the fact that charged air rushes out directly from the lower portion through the one-way airflow channel to make contact with external metal parts is avoided. The breaker is simple in structure and easy to popularize and use.
Description
Technical field
The present invention relates to the housing of circuit breaker, relate in particular to a kind of circuit breaker with heat loss through convection housing.
Background technology
Circuit 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, rely on the joint and the circulation and the disjunction that separate to realize electric current of dynamic and static contact, when dynamic and static contact is during in engagement state, due to the internal resistance of the circuit breaker heat that has a resistance itself; And the instrument transformer using in circuit breaker, is made up of air core coil and ironcore choke, ironcore choke is because of the self-resistance warm that has a resistance.The problem that researcher faces is the heat safety that how Shell of circuit breaker inside produced, is delivered in air rapidly and effectively.
The heat radiation of circuit breaker at present mainly relies on copper bar to spread out of in heat conducting mode, and housing itself can only dispel the heat on a small quantity with radiation mode, and the pattern of housing three direction sealings has determined that it cannot carry out effective cross-ventilation heat radiation; The patent that number of patent application is CN201010503042.9 provides a kind of new radiating mode, the position that instrument transformer is installed on insulation shell is provided with the air inlet communicating with the external world, on insulation shell, there is the air outlet being connected with insulation shell inner chamber, make insulation shell inner chamber and extraneous formation cross-ventilation 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 the reverse hidden danger of going out of air inlet, can make insulation shell inner chamber air pressure decline, electric arc cannot enter arc control device and extinguish, if charged gas is directly gone out from air inlet, contact with external metallization parts, can cause short circuit phenomenon, cause circuit breaker to burn out, circuit cannot normally move.
Summary of the invention
The problems that exist in order to overcome the heat radiation of circuit breaker in prior art, the invention provides a kind of circuit breaker with heat loss through convection housing of a kind of good heat dissipation effect, simple in structure, the seal that can guarantee 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 circuit breaker with heat loss through convection housing, comprise housing, housing top is provided with arc control device, enclosure interior is provided with fixed contact and moving contact, described fixed contact is and contacts or separated position with moving contact, and 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 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, mutually staggers and arrange in the position of the first 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, in the time that dynamic and static contact is contact condition, gas channel is opened, outside air can enter enclosure interior by one-way gas flow passage, by air, is dispelled the heat in circuit 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, guarantee that electric arc enters arc control device 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; 2. simple in structure being easy to of this invention applied.
Accompanying drawing explanation
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 control device 2, fixed 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.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 2 and 3, a kind of circuit breaker with heat loss through convection housing, comprise housing 1, arc control device 2, fixed contact 3, moving contact 4, one-way gas flow passage 5, electric arc 6, described housing 1 top is provided with arc control device 2, housing 1 inside is provided with the moving contact 4 and the fixed contact 3 that are contact or released state, is 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 is pressed against in fixed head 11 surface grooves by flexible member 15.In housing, nothing is compared with in atmospheric pressure situation, and portable plate 12 and fixed head 11 rely 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 pore 14, staggers mutually in pore position.
As shown in Figure 2, when moving contact 4 is with fixed contact 3 during in contact condition, one-way gas flow passage 5 is opened, and outside air enters housing 1 inside by the one-way gas flow passage 5 of housing 1 bottom, flows out via arc control device 3, reaches the effect of heat loss through convection.As Fig. 3, shown in Fig. 7, when moving contact 4 is with fixed contact 3 during in released state, between contact, produce high-temperature electric arc 6, the interior gas of housing 1 is heated and acutely expands, the gas pressure intensity of housing 1 inside overcomes the elastic force of compression elastic element 15, make portable plate 12 and fixed head 11 be contact condition, because its first pore 13 and the dislocation of the second pore 14 are arranged, one-way gas flow passage 5 closures, guarantee the air pressure intensity in housing 1, the electric arc 6 that moving contact 4 and fixed contact 3 are produced in separation process enters arc control device 3 and extinguishes, 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 (3)
1. one kind has the circuit breaker of heat loss through convection housing, comprise housing, housing top is provided with arc control device, and enclosure interior is provided with fixed contact and moving contact, described fixed contact is and contacts or separated position with moving contact, it is characterized in that: described housing is provided with one-way gas flow passage.
2. a kind of circuit breaker with heat loss through convection housing according to claim 1, is characterized in that: described one-way gas flow passage is located at the bottom of housing.
3. a kind of circuit breaker with heat loss through convection housing according to claim 1 and 2, is characterized in that: described one-way gas flow passage comprises fixed head and portable plate, 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, mutually staggers and arrange in the position of the first pore and the second pore.
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 true CN103903928A (en) | 2014-07-02 |
| CN103903928B CN103903928B (en) | 2016-05-11 |
Family
ID=50995195
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 |
|---|---|
| CN (1) | CN103903928B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461359A (en) * | 2017-02-22 | 2018-08-28 | 施耐德电器工业公司 | The switchgear for electric current with separable electric contact and air switch |
| CN109935501A (en) * | 2019-03-29 | 2019-06-25 | 厦门宏发开关设备有限公司 | A kind of frame circuit breaker with heat sinking function |
| CN111405829A (en) * | 2020-04-08 | 2020-07-10 | 深圳传音控股股份有限公司 | Heat dissipation structure, method and terminal |
| CN113097019A (en) * | 2021-02-25 | 2021-07-09 | 方燕 | Circuit breaker with over-temperature protection function |
| CN114446721A (en) * | 2020-11-02 | 2022-05-06 | 上海量乘机电科技有限公司 | Universal circuit breaker with low temperature rise |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461359A (en) * | 2017-02-22 | 2018-08-28 | 施耐德电器工业公司 | The switchgear for electric current with separable electric contact and air switch |
| CN108461359B (en) * | 2017-02-22 | 2021-10-29 | 施耐德电器工业公司 | Switch device for electric current with separable electrical contacts and air switch |
| CN109935501A (en) * | 2019-03-29 | 2019-06-25 | 厦门宏发开关设备有限公司 | A kind of frame circuit breaker with heat sinking function |
| CN111405829A (en) * | 2020-04-08 | 2020-07-10 | 深圳传音控股股份有限公司 | Heat dissipation structure, method and terminal |
| CN114446721A (en) * | 2020-11-02 | 2022-05-06 | 上海量乘机电科技有限公司 | Universal circuit breaker with low temperature rise |
| 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 |
| CN113097019A (en) * | 2021-02-25 | 2021-07-09 | 方燕 | Circuit breaker with over-temperature protection function |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103903928B (en) | 2016-05-11 |
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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. |