CN101950697A - Fixed contact - Google Patents
Fixed contact Download PDFInfo
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- CN101950697A CN101950697A CN 201010506856 CN201010506856A CN101950697A CN 101950697 A CN101950697 A CN 101950697A CN 201010506856 CN201010506856 CN 201010506856 CN 201010506856 A CN201010506856 A CN 201010506856A CN 101950697 A CN101950697 A CN 101950697A
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- China
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- cylindrical shell
- fixed contact
- cylinder body
- wall thickness
- described cylindrical
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a fixed contact comprising a hollow cylindrical cylinder body, wherein the inner wall thickness of the cylinder body is increased from top to bottom in a stepped mode; the inner and the external sides of the upper edge of the cylinder body are provided with chamfers; and the bottom end part of the cylinder body is provided with a mounting hole communicated with the inner cavity of the cylinder body. The invention has the advantages that the structure is reasonable; the fixed contact is suitable for a circuit with low rated current and a circuit with high rated current; and the arc phenomenon between the fixed contact and a moving contact can be effectively prevented to enhance the safety of the circuits and prolong the service life.
Description
Technical field
The present invention relates to the accessory of power equipment, is a kind of fixed contact specifically.
Background technology
Fixed contact generally is used on the isolating switch, isolating switch is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, it plays buffer action in circuit, because the isolating switch use amount is big, functional reliability requires high, and is all bigger to the influence of design, foundation and the safe operation of electric substation, power plant.The main feature of isolating switch is no arc extinguishing ability, can only not have to divide under the situation of load current, close circuit.Because in the moment of switch folding, can produce electric arc between fixed contact and the moving contact, frequent switch closure, fixed contact is damaged easily, reduce its useful life, and can badly influence the fail safe of high voltage power distribution, for the fail safe that improves high voltage power distribution just needs often to change fixed contact, therefore increased cost virtually.
Summary of the invention
Goal of the invention:, the objective of the invention is for a kind of security performance height, fixed contact that arc extinguishing is good, applied widely are provided at above-mentioned technical problem.
Technical scheme: in order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of fixed contact, comprise the hollow cylindrical cylindrical shell, the interior wall thickness of described cylindrical shell is staged from top to bottom and increases, the medial and lateral of described cylindrical shell upper mouth are equipped with chamfering, have the installing hole that communicates with cylinder lumen in the cylindrical shell bottom.
The thick three phases that is divided into of described cylinder inboard wall is followed successively by 20cm, 31cm, 58cm from top to bottom.
The thick three phases that is divided into of described cylinder inboard wall is followed successively by 20cm, 31cm, 88cm from top to bottom.
Be provided with breach in described cylindrical shell bottom outside.
Beneficial effect: compared with prior art, advantage of the present invention is: rational in infrastructure, can be applicable to the circuit of low rated current and the circuit of high rated current; Can prevent effectively that the arc phenomenon between fixed contact and the moving contact from occurring, thus the fail safe that can improve circuit, and can increase the service life.
Description of drawings
Fig. 1 is the structural representation of first embodiment of the invention;
Fig. 2 is the structural representation of second embodiment of the invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
As shown in Figure 2, a kind of fixed contact of the present invention comprises hollow cylindrical cylindrical shell 1, and the interior wall thickness of described cylindrical shell 1 is staged from top to bottom and increases, the medial and lateral of described cylindrical shell 1 upper mouth are equipped with chamfering, have the installing hole 2 that communicates with cylindrical shell 1 inner chamber in cylindrical shell 1 bottom.
Embodiment 1: as shown in Figure 1, a kind of fixed contact comprises hollow cylindrical cylindrical shell 1, and the interior wall thickness of described cylindrical shell 1 is staged from top to bottom and is divided into three phases, the medial and lateral of described cylindrical shell 1 upper mouth are equipped with chamfering, have the installing hole 2 that communicates with cylindrical shell 1 inner chamber in cylindrical shell 1 bottom; Be provided with breach 3 in cylindrical shell 1 bottom outside; Wall thickness is followed successively by 20cm, 31cm, 58cm from top to bottom in its middle cylinder body 1; On the whole cylindrical shell 1, wall thickness is that the cylindrical shell 1 of 20cm is 89cm for 32cm, internal diameter highly; Wall thickness is that the cylindrical shell 1 of 31cm is 78cm for 21cm, internal diameter highly; Wall thickness is that the cylindrical shell 1 of 58cm is 21cm for 22cm, internal diameter highly; The diameter of installing hole 2 is 51cm; The chamfering in the upper mouth outside is 15 °.Breach 3 is the column breach, and its radius is 9cm, highly for 15cm.
Embodiment 2: as shown in Figure 2, a kind of fixed contact comprises hollow cylindrical cylindrical shell 1, and the interior wall thickness of described cylindrical shell 1 is staged from top to bottom and is divided into three phases, and wall thickness is divided into three phases in the cylindrical shell 1, is followed successively by 20cm, 31cm, 88cm from top to bottom; On the whole cylindrical shell 1, wall thickness is that the cylindrical shell 1 of 20cm is 59cm for 32cm, internal diameter highly; Wall thickness is that the cylindrical shell 1 of 31cm is 48cm for 21cm, internal diameter highly; Wall thickness is that the cylindrical shell 1 of 58cm is 21cm for 22cm, internal diameter highly; The diameter of installing hole 2 is 51cm; The chamfering in the upper mouth outside is 15 °.
Claims (4)
1. fixed contact, it is characterized in that, comprise hollow cylindrical cylindrical shell (1), the interior wall thickness of described cylindrical shell (1) is staged from top to bottom and increases, the medial and lateral of described cylindrical shell (1) upper mouth are equipped with chamfering, have the installing hole (2) that communicates with cylindrical shell (1) inner chamber in cylindrical shell (1) bottom.
2. fixed contact according to claim 1 is characterized in that, the interior wall thickness of described cylindrical shell (1) is divided into three phases, is followed successively by 20cm, 31cm, 58cm from top to bottom.
3. fixed contact according to claim 1 is characterized in that, the interior wall thickness of described cylindrical shell (1) is divided into three phases, is followed successively by 20cm, 31cm, 88cm from top to bottom.
4. fixed contact according to claim 3 is characterized in that, is provided with breach (3) in described cylindrical shell (1) bottom outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105068568A CN101950697B (en) | 2010-10-14 | 2010-10-14 | Fixed contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105068568A CN101950697B (en) | 2010-10-14 | 2010-10-14 | Fixed contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101950697A true CN101950697A (en) | 2011-01-19 |
| CN101950697B CN101950697B (en) | 2012-07-25 |
Family
ID=43454144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105068568A Expired - Fee Related CN101950697B (en) | 2010-10-14 | 2010-10-14 | Fixed contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101950697B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230561A (en) * | 2017-06-19 | 2017-10-03 | 镇江天旭电气有限公司 | A kind of static contact |
| CN110344962A (en) * | 2019-06-28 | 2019-10-18 | 广西玉柴机器股份有限公司 | A kind of high accuracy install pore structure |
| CN110611246A (en) * | 2018-06-15 | 2019-12-24 | 阜新市百斯特电器有限公司 | Primary static contact for switch cabinet |
| CN110797217A (en) * | 2018-08-02 | 2020-02-14 | 平高集团有限公司 | Quick mechanical switch and switch fracture thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2355424Y (en) * | 1998-12-25 | 1999-12-22 | 于永学 | A.C. contractor with arc extinction by feedback cyclic current |
| US6211479B1 (en) * | 1998-10-06 | 2001-04-03 | Mitsubishi Denki Kabushiki Kaisha | Persistent current circuit switch |
| US6479778B1 (en) * | 1999-06-04 | 2002-11-12 | Mitsubishi Denki Kabushiki Kaisha | Vacuum switch including windmill-shaped electrodes |
| CN200993927Y (en) * | 2006-11-16 | 2007-12-19 | 中国振华（集团）科技股份有限公司宇光分公司 | Contact for vacuum arc extinguishing chamber |
| CN201812685U (en) * | 2010-10-14 | 2011-04-27 | 句容市华通电器有限公司 | Static contact |
-
2010
- 2010-10-14 CN CN2010105068568A patent/CN101950697B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211479B1 (en) * | 1998-10-06 | 2001-04-03 | Mitsubishi Denki Kabushiki Kaisha | Persistent current circuit switch |
| CN2355424Y (en) * | 1998-12-25 | 1999-12-22 | 于永学 | A.C. contractor with arc extinction by feedback cyclic current |
| US6479778B1 (en) * | 1999-06-04 | 2002-11-12 | Mitsubishi Denki Kabushiki Kaisha | Vacuum switch including windmill-shaped electrodes |
| CN200993927Y (en) * | 2006-11-16 | 2007-12-19 | 中国振华（集团）科技股份有限公司宇光分公司 | Contact for vacuum arc extinguishing chamber |
| CN201812685U (en) * | 2010-10-14 | 2011-04-27 | 句容市华通电器有限公司 | Static contact |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230561A (en) * | 2017-06-19 | 2017-10-03 | 镇江天旭电气有限公司 | A kind of static contact |
| CN110611246A (en) * | 2018-06-15 | 2019-12-24 | 阜新市百斯特电器有限公司 | Primary static contact for switch cabinet |
| CN110797217A (en) * | 2018-08-02 | 2020-02-14 | 平高集团有限公司 | Quick mechanical switch and switch fracture thereof |
| CN110797217B (en) * | 2018-08-02 | 2022-03-29 | 平高集团有限公司 | Quick mechanical switch and switch fracture thereof |
| CN110344962A (en) * | 2019-06-28 | 2019-10-18 | 广西玉柴机器股份有限公司 | A kind of high accuracy install pore structure |
| CN110344962B (en) * | 2019-06-28 | 2024-02-20 | 广西玉柴机器股份有限公司 | High-precision mounting hole structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101950697B (en) | 2012-07-25 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141014 |
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| EXPY | Termination of patent right or utility model |