CN112216533B - Contact protection mechanism based on arc shielding structure - Google Patents

Contact protection mechanism based on arc shielding structure Download PDF

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Publication number
CN112216533B
CN112216533B CN202011186452.5A CN202011186452A CN112216533B CN 112216533 B CN112216533 B CN 112216533B CN 202011186452 A CN202011186452 A CN 202011186452A CN 112216533 B CN112216533 B CN 112216533B
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CN
China
Prior art keywords
contact
plate
insulating
box body
conductive
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Application number
CN202011186452.5A
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Chinese (zh)
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CN112216533A (en
Inventor
王兴生
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Fuyang Zhongjiao Intelligent Technology Co ltd
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Fuyang Zhongjiao Intelligent Technology Co ltd
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Priority to CN202011186452.5A priority Critical patent/CN112216533B/en
Publication of CN112216533A publication Critical patent/CN112216533A/en
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Publication of CN112216533B publication Critical patent/CN112216533B/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/06Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/64Protective enclosures, baffle plates, or screens for contacts

Abstract

The invention discloses a contact protection mechanism based on an arc shielding structure, and relates to the technical field of conductive contacts. In the invention: an insulation rod body is movably matched and installed at the position of the bare electricity prevention space; the front end part of the conductive rod body is movably inserted into the box body inner cavity of the first protective box body; the front end part of the conducting rod body is provided with a pair of branch conducting ends; the loop side and the back side of the branch conductive end are wrapped with a third front side insulating layer. Two centrosymmetric separated contact conductor plates are movably arranged in the inner cavity of the box body of the first protection box body. The inner sides of the conductive rod bodies are symmetrically divided in the first protection box body, the conductive rod bodies are normally isolated from the corresponding separated contact conductor plates and are matched with the separated contact conductor plates in a non-electric end face contact mode, and large-area inner side contact inclined surface conductive contact is formed on the inner sides of the separated contact conductor plates, so that the occurrence rate of poor contact, even sparks, electric arcs and other phenomena occurring in the point-to-point or point-to-surface conductive process is reduced.

Description

Contact protection mechanism based on arc shielding structure
Technical Field
The invention belongs to the technical field of conductive contacts, and particularly relates to a contact protection mechanism based on an arc shielding structure.
Background
In the power and electronic equipment, the circuit switch is provided with a conductive contact, and when the circuit contact conducts and contacts a circuit loop, the phenomena of sparks, electric arcs and the like can occur due to overlarge voltage and current at the moment of contact.
When the traditional point contact type contact structure is in contact, even after the contact conduction, the point-to-point connection is formed, the formed conduction structure is not stable enough, and when the external vibration and other conditions occur, the point contact conduction may cause contact oscillation, even poor contact, secondary or repeated electric sparks and other bad phenomena.
Disclosure of Invention
The invention aims to provide a contact protection mechanism based on an arc shielding structure, which reduces the occurrence rate of poor contact, even sparks, electric arcs and the like in the point-to-point or point-to-surface conducting process.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a contact protection mechanism based on an arc shielding structure, which comprises a first protection box body, wherein a box body inner cavity and a plurality of side position guide spaces located in the corner area of the box body inner cavity are arranged in the first protection box body.
The periphery of the first protection box body comprises an anti-bare electric space; an insulating rod body is movably matched and installed at the position of the bare electricity preventing space; the insulating rod body is provided with a conductive rod body; the front end part of the conductive rod body is movably inserted into the box body inner cavity of the first protective box body; the front end part of the conducting rod body is provided with a pair of branch conducting ends; the loop side and the back side of the branch conductive end are wrapped with a third front side insulating layer.
Two centrosymmetric separated contact conductor plates are movably arranged in the inner cavity of the box body of the first protection box body; the conductive rod body is provided with a conductive rod mounting notch; a second insulating guide rod is elastically limited on the conducting rod mounting notch; the front side end side of the second insulating guide rod is fixedly connected with a sixth insulating plate fixedly arranged on the outer side surface of the separated contact conductor plate; seventh contact surfaces located on two sides of the sixth insulating plate are formed on the outer sides of the separated contact conductor plates; the inner side of the separated contact conductor plate is provided with an inner side contact inclined plane; one end of the inner side contact inclined plane of the separated contact conductor plate is provided with a distance increasing cambered surface; the other end of the inner side contact inclined plane of the separated contact conductor plate is provided with a contact insulating block.
A fourth fixed mounting plate is fixedly mounted at the edge position guide space position of the first protection box body; a fourth fixed guide rod is fixedly arranged between the pair of fourth fixed mounting plates; the end side of the separated contact conductor plate is provided with an insulating guide block; and the insulating guide block is slidably arranged on the fourth fixed guide rod.
As a preferred technical scheme of the invention, the bare electricity preventing space is positioned between the edge position guide spaces on the same side of the first protection box body; an insulating protective soft skin which is connected with the insulating rod body in a sealing way is arranged at the position of the outer side opening of the naked electric preventing space.
As a preferred technical scheme of the invention, a second fixing plate is fixedly arranged in the conducting rod mounting notch; the second fixing plate is provided with a guide groove structure; the conducting rod body movably penetrates through the guide groove structure on the second fixing plate.
As a preferred technical scheme of the invention, the end side of the conducting rod body is provided with a second limiting end plate; a second limiting ring plate is arranged on the conductive rod body; the movable ranges of the second limiting end plate and the second limiting ring plate are positioned in the conducting rod mounting notch.
As a preferred technical scheme of the invention, the second limit ring plate and the second limit end plate are distributed at two sides of the second fixed plate; a second adjusting spring positioned between the second limiting end plate and the second fixing plate is sleeved on the conductive rod body; the conductive rod body is sleeved with a second adjusting spring positioned between the second limiting ring plate and the second fixing plate.
As a preferred technical scheme of the invention, the rear side of the branch conducting end is fixedly connected with a fifth guide rod; a guide rod groove structure is formed in the fourth fixed mounting plate; and the fifth guide rod movably penetrates through the guide rod groove structure on the fourth fixed mounting plate.
As a preferred technical scheme of the present invention, the outer side surface of the sixth insulating plate is an arc surface; the front end face of the branch conductive end is in plane fit with the seventh contact surface.
As a preferred technical scheme of the invention, the contact insulating block adopts an insulating rubber material block; one side of the contact insulating block is provided with an arc-shaped surface matched with the distance-increasing cambered surface structure.
The invention has the following beneficial effects:
according to the invention, the symmetrical branch ends at the inner sides of the conductive rod bodies are arranged in the first protection box body, and are matched with the corresponding separated contact conductor plates in a normalized isolation and electroless end surface contact mode, and large-area inner side contact inclined surface conductive contact is formed at the inner sides of the separated contact conductor plates, so that the occurrence rate of poor contact, even sparks, electric arcs and other phenomena in the point-to-point or point-to-surface conductive process is reduced;
according to the invention, the sixth insulating plate is arranged on the outer side of the separated contact conductor plate, so that the contact of the two branch conductive ends is isolated, and the surface potential difference between the two branch conductive ends and the contact point of the separated contact conductor plate is avoided; the separated contact conductor plate increases the electric field distance in an isolation state and improves the safety of a high-voltage circuit.
According to the invention, the distance increasing cambered surface is arranged on the inner side of the separated contact conductor plate, and the contact insulating block with the matched cambered surface is arranged on the inner side of the separated contact conductor plate on the opposite side, so that point discharge at the outer edge when the two separated contact conductor plates are in contact is avoided.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a contact protection mechanism according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partially enlarged view of the structure at B in FIG. 1;
FIG. 4 is an enlarged partial view of FIG. 1 at C;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a first protective box body; 2-inner cavity of the box body; 3-edge guide space; 4-bare electricity prevention space; 5-an insulating rod body; 6-insulating protective soft leather; 7-a conductive rod body; 8-branched conductive ends; 9-separating the contact conductor plate; 10-conductive rod mounting notches; 11-a second insulated guide rod; 12-a second fixing plate; 13-a second limiting end plate; 14-a second stop collar plate; 15-a third front side insulating layer; 16-a fourth fixed mounting plate; 17-a fourth fixed guide bar; 18-a fifth guide bar; 19-a sixth insulating plate; 20-a sixth insulating cambered surface; 21-a seventh contact surface; 22-inner contact ramp; 23-an insulating guide block; 24-a distance-increasing arc surface; 25-contact insulation blocks; 26-second regulating spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "slot," "upper," "lower," "end," "top," "middle," "outer," "inner," and the like are used in an orientation or positional relationship that is merely used to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the present invention.
Example one
Referring to fig. 1, 2, 3 and 4, the present invention relates to a contact protection mechanism based on an arc shielding structure.
In the contact protection mechanism configuration of the present invention: be equipped with box inner chamber 2 in the first protection box body 1 and be located 2 corner regions's of box inner chamber a plurality of limit position guide space 3, the periphery of first protection box body 1 is including preventing naked electric space 4, prevent that naked electric space 4 position department movable fit installs the insulating rod body 5, be provided with the conducting rod body 7 on the insulating rod body 5, the preceding tip position activity of the conducting rod body 7 inserts in the box inner chamber 2 of first protection box body 1, the preceding tip position of the conducting rod body 7 is equipped with a pair of branch conducting terminal 8, the lateral ring side and the rear side of branch conducting terminal 8 have all wrapped up one deck third front side insulating layer 15.
In the contact protection mechanism configuration of the present invention: two centrosymmetric separated contact conductor plates 9 are movably arranged in a box body inner cavity of the first protection box body 1, a conductive rod installation notch 10 is formed in a conductive rod body 7, a second insulating guide rod 11 is elastically limited on the conductive rod installation notch 10, a sixth insulating plate 19 fixedly installed on the outer side surface of the separated contact conductor plate 9 is fixedly connected to the front side end side of the second insulating guide rod 11, a seventh contact surface 21 located on two sides of the sixth insulating plate 19 is formed on the outer side of the separated contact conductor plate 9, an inner side contact inclined surface 22 is arranged on the inner side of the separated contact conductor plate 9, an increasing arc surface 24 is arranged at one end of the inner side contact inclined surface 22 of the separated contact conductor plate 9, and a contact insulating block 25 is arranged at the other end of the inner side contact inclined surface 22 of the separated contact conductor plate 9.
In the contact protection mechanism configuration of the present invention: a fourth fixed mounting plate 16 is fixedly mounted at the position of the edge position guide space 3 of the first protection box body 1, a fourth fixed guide rod 17 is fixedly arranged between a pair of the fourth fixed mounting plates 16, an insulating guide block 23 is arranged at the end side of the separated contact conductor plate 9, and the insulating guide block 23 is slidably mounted on the fourth fixed guide rod 17.
In the contact protection mechanism configuration of the present invention: prevent that naked electric space 4 is located between the limit position guide space 3 of homonymy on the first protection box body 1, prevent that the outside mouth position department of naked electric space 4 is provided with the soft skin 6 of insulating protection with the 5 sealing connection of insulating rod body.
In the contact protection mechanism configuration of the present invention: a second fixing plate 12 is fixedly installed in the conducting rod installation notch 10, a guide groove structure is formed in the second fixing plate 12, and the conducting rod body 7 movably penetrates through the guide groove structure in the second fixing plate 12.
In the contact protection mechanism configuration of the present invention: the end side of the conducting rod body 7 is provided with a second limiting end plate 13, the conducting rod body 7 is provided with a second limiting ring plate 14, and the moving ranges of the second limiting end plate 13 and the second limiting ring plate 14 are located in the conducting rod installation gap 10.
The second limiting ring plate 14 and the second limiting end plate 13 are distributed on two sides of the second fixing plate 12, a second adjusting spring 26 located between the second limiting end plate 13 and the second fixing plate 12 is sleeved on the conductive rod body 7, and a second adjusting spring 26 located between the second limiting ring plate 14 and the second fixing plate 12 is sleeved on the conductive rod body 7.
In the contact protection mechanism configuration of the present invention: the rear side of the branch conducting end 8 is fixedly connected with a fifth guide rod 18, a guide rod groove structure is formed in the fourth fixed mounting plate 16, and the fifth guide rod 18 movably penetrates through the guide rod groove structure in the fourth fixed mounting plate 16.
In the contact protection mechanism configuration of the present invention: the outer side surface of the sixth insulating plate 19 is an arc surface, and the front end surface of the branch conductive end 8 forms plane fit with the seventh contact surface 21.
In the contact protection mechanism configuration of the present invention: the contact insulating block 25 is made of an insulating rubber material, and one side of the contact insulating block 25 is provided with an arc-shaped surface matched with the distance-increasing arc-shaped surface 24 in structure.
In the contact protection mechanism configuration of the present invention: the branch conducting ends 8 which are symmetrical at the inner side of the conducting rod body 7 are arranged in the first protection box body 1, are normally isolated from the corresponding separated contact conductor plate 9 and are matched in a mode of using electroless end face contact, and large-area inner side contact inclined planes 22 are formed at the inner side of the separated contact conductor plate 9 for conducting contact, so that the occurrence rate of poor contact, even sparks, electric arcs and the like in the conducting process between point-to-point or point-to-surface is reduced. The distance increasing cambered surface 24 is arranged on the inner side of the separated contact conductor plate 9, and the contact insulating block 25 with the matched cambered surface is arranged on the inner side of the separated contact conductor plate 9 on the opposite side, so that point discharge of the outer edge when the two separated contact conductor plates 9 are contacted is avoided.
In the contact protection mechanism configuration of the present invention: when the device is used, the insulating rod bodies 5 on the two sides are simultaneously stressed and pushed inwards, the two branch conductive ends 8 on the same side are firstly contacted with the separated contact conductor plates 9 (the electric circuit is not conducted), and then the two separated contact conductor plates 9 are contacted and then the electric circuit is conducted.
In the description herein, references to the terms "embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (8)

1. The utility model provides a contact protection machanism based on arc shielding structure, includes first protection box body (1), be equipped with box inner chamber (2) in first protection box body (1) and be located box inner chamber (2) corner region a plurality of limit position guide space (3), its characterized in that:
the periphery of the first protection box body (1) comprises an anti-bare electric space (4);
an insulating rod body (5) is movably matched and installed at the position of the bare electricity prevention space (4);
a conductive rod body (7) is arranged on the insulating rod body (5);
the front end part of the conductive rod body (7) is movably inserted into the box body inner cavity (2) of the first protection box body (1);
the front end part of the conducting rod body (7) is provided with a pair of branch conducting ends (8);
the loop side and the rear side of the branch conductive end (8) are wrapped with a third front side insulating layer (15);
two centrosymmetric separated contact conductor plates (9) are movably arranged in the box body cavity of the first protection box body (1);
a conductive rod mounting notch (10) is formed in the conductive rod body (7);
a second insulating guide rod (11) is elastically limited on the conducting rod mounting notch (10);
the front side end side of the second insulating guide rod (11) is fixedly connected with a sixth insulating plate (19) fixedly arranged on the outer side surface of the separated contact conductor plate (9);
seventh contact surfaces (21) located on both sides of the sixth insulating plate (19) are formed on the outer sides of the separated contact conductor plates (9);
an inner side contact inclined plane (22) is arranged on the inner side of the separated contact conductor plate (9);
one end of the inner side contact inclined plane (22) of the separated contact conductor plate (9) is provided with a distance increasing cambered surface (24);
the other end of the inner side contact inclined plane (22) of the separated contact conductor plate (9) is provided with a contact insulating block (25);
a fourth fixed mounting plate (16) is fixedly mounted at the position of the edge position guide space (3) of the first protection box body (1);
a fourth fixed guide rod (17) is fixedly arranged between the pair of fourth fixed mounting plates (16);
an insulating guide block (23) is arranged at the end side of the separated contact conductor plate (9);
and the insulating guide block (23) is slidably mounted on the fourth fixed guide rod (17).
2. The arc shielding structure-based contact protection mechanism according to claim 1, wherein:
the bare electricity preventing space (4) is positioned between the side position guide spaces (3) on the same side of the first protection box body (1);
and an insulating protective soft skin (6) hermetically connected with the insulating rod body (5) is arranged at the position of an outer side opening of the bare electricity prevention space (4).
3. The arc shielding structure-based contact protection mechanism according to claim 1, wherein:
a second fixing plate (12) is fixedly arranged in the conducting rod mounting notch (10);
the second fixing plate (12) is provided with a guide groove structure;
the conducting rod body (7) movably penetrates through the guide groove structure on the second fixing plate (12).
4. The arc shielding structure-based contact protection mechanism of claim 3, wherein:
a second limiting end plate (13) is arranged on the end side of the conductive rod body (7);
a second limiting ring plate (14) is arranged on the conductive rod body (7);
the movable ranges of the second limiting end plate (13) and the second limiting ring plate (14) are positioned in the conducting rod mounting notch (10).
5. The arc shielding structure-based contact protection mechanism according to claim 4, wherein:
the second limiting ring plate (14) and the second limiting end plate (13) are distributed on two sides of the second fixing plate (12);
and a second adjusting spring (26) is sleeved on the conducting rod body (7) between the second limiting end plate (13) and the second fixing plate (12) and between the second limiting ring plate (14) and the second fixing plate (12).
6. The arc shielding structure-based contact protection mechanism according to claim 1, wherein:
a fifth guide rod (18) is fixedly connected to the rear side of the branch conductive end (8);
a guide rod groove structure is arranged on the fourth fixed mounting plate (16);
the fifth guide rod (18) movably penetrates through a guide rod groove structure on the fourth fixed mounting plate (16).
7. The arc shielding structure-based contact protection mechanism according to claim 1, wherein:
the outer side surface of the sixth insulating plate (19) is an arc-shaped surface;
the front end face of the branch conductive end (8) is in plane fit with the seventh contact face (21).
8. The arc shielding structure-based contact protection mechanism according to claim 1, wherein:
the contact insulating block (25) is an insulating rubber material block;
one side of the contact insulating block (25) is provided with an arc surface matched with the distance-increasing arc surface (24) in structure.
CN202011186452.5A 2020-10-29 2020-10-29 Contact protection mechanism based on arc shielding structure Active CN112216533B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011186452.5A CN112216533B (en) 2020-10-29 2020-10-29 Contact protection mechanism based on arc shielding structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011186452.5A CN112216533B (en) 2020-10-29 2020-10-29 Contact protection mechanism based on arc shielding structure

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CN112216533A CN112216533A (en) 2021-01-12
CN112216533B true CN112216533B (en) 2022-06-14

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243859A (en) * 1977-09-12 1981-01-06 Siemens Aktiengesellschaft Vacuum switch
DE3915519A1 (en) * 1989-05-11 1989-10-19 Slamecka Ernst Axial magnetic field contact arrangement for vacuum switches
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
CN201112262Y (en) * 2007-07-27 2008-09-10 北京京东方真空电器有限责任公司 Vacuum switch tube contact head and vacuum switch tube
CN203910660U (en) * 2014-07-01 2014-10-29 王永法 Three-position vacuum arc-extinguishing chamber
CN104966650A (en) * 2015-05-28 2015-10-07 北京航空航天大学 Vacuum explosion chamber and contact structure thereof
CN105006403A (en) * 2015-07-08 2015-10-28 天津平高智能电气有限公司 Vacuum arc-extinguishing chamber, contact assembly thereof and current coils used for contact assembly
CN207705133U (en) * 2017-12-27 2018-08-07 河南师范大学新联学院 A kind of current-limiting protection constructional device conductive based on the separation of air cavity drive-type
CN208548316U (en) * 2018-08-28 2019-02-26 宁波云振真空电器有限公司 A kind of novel contact component
CN111627748A (en) * 2020-05-25 2020-09-04 大连理工大学 Double-break heterogeneous arc extinguishing chamber based on speed regulation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101704807B1 (en) * 2014-12-31 2017-02-08 주식회사 효성 operation device using electromagnetic repulsion force for circuit breaker

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243859A (en) * 1977-09-12 1981-01-06 Siemens Aktiengesellschaft Vacuum switch
DE3915519A1 (en) * 1989-05-11 1989-10-19 Slamecka Ernst Axial magnetic field contact arrangement for vacuum switches
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
CN201112262Y (en) * 2007-07-27 2008-09-10 北京京东方真空电器有限责任公司 Vacuum switch tube contact head and vacuum switch tube
CN203910660U (en) * 2014-07-01 2014-10-29 王永法 Three-position vacuum arc-extinguishing chamber
CN104966650A (en) * 2015-05-28 2015-10-07 北京航空航天大学 Vacuum explosion chamber and contact structure thereof
CN105006403A (en) * 2015-07-08 2015-10-28 天津平高智能电气有限公司 Vacuum arc-extinguishing chamber, contact assembly thereof and current coils used for contact assembly
CN207705133U (en) * 2017-12-27 2018-08-07 河南师范大学新联学院 A kind of current-limiting protection constructional device conductive based on the separation of air cavity drive-type
CN208548316U (en) * 2018-08-28 2019-02-26 宁波云振真空电器有限公司 A kind of novel contact component
CN111627748A (en) * 2020-05-25 2020-09-04 大连理工大学 Double-break heterogeneous arc extinguishing chamber based on speed regulation

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