CN210296165U - Double-position mechanical holding direct current contactor - Google Patents
Double-position mechanical holding direct current contactor Download PDFInfo
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- CN210296165U CN210296165U CN201921719078.3U CN201921719078U CN210296165U CN 210296165 U CN210296165 U CN 210296165U CN 201921719078 U CN201921719078 U CN 201921719078U CN 210296165 U CN210296165 U CN 210296165U
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- electromagnet
- contact piece
- contact
- ceramic spacer
- iron core
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Abstract
The utility model relates to a double-position mechanical maintaining direct current contactor, which comprises a contactor body; the contactor body is internally provided with a first contact piece, a second contact piece, a ceramic spacer arranged between the first contact piece and the second contact piece, a first electromagnet and a second electromagnet, wherein the first electromagnet and the second electromagnet are used for driving the ceramic spacer to move; the first electromagnet and the second electromagnet are both composed of a coil and an iron core; the iron core of the first electromagnet is connected with one end of the ceramic spacer through a first iron core pull rod, and the iron core of the second electromagnet is connected with the other end of the ceramic spacer through a second iron core pull rod; the contact or disconnection of the first contact piece and the second contact piece is controlled by the movement of the ceramic spacer. The utility model discloses a two position machinery keeps direct current contactor, the pottery spacer arc extinguishing mode of adoption directly cuts off upper and lower contact when the disconnection contact, and not only the arc extinguishing effect is better, has simplified inner structure moreover, has saved manufacturing cost.
Description
Technical Field
The utility model relates to a direct current contactor field especially relates to a two position machinery keeps direct current contactor.
Background
The working current of the DC contactor in the market is large in the use occasion, the phenomenon of severe arc discharge exists when the contact is disconnected, the contact surface of the contact is burnt, the service life is greatly reduced, and therefore, arc extinguishing measures are adopted in the general DC contactor with large current, such as the modes of magnetic blowing, vacuum pumping, inert gas filling and the like, so that the production and manufacturing cost and the complexity of the structure are increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two position machinery keeps direct current contactor, the pottery spacer arc extinguishing mode of adoption directly cuts off upper and lower contact when the disconnection contact, and not only the arc extinguishing effect is better, has simplified inner structure moreover, has saved manufacturing cost.
The utility model provides a technical scheme that its technical problem adopted is: a dual position mechanical holding DC contactor includes a contactor body; the contactor body is internally provided with a first contact piece, a second contact piece, a ceramic spacer arranged between the first contact piece and the second contact piece, a first electromagnet and a second electromagnet, wherein the first electromagnet and the second electromagnet are used for driving the ceramic spacer to move; the first electromagnet and the second electromagnet are both composed of a coil and an iron core; the iron core of the first electromagnet is connected with one end of the ceramic spacer through a first iron core pull rod, and the iron core of the second electromagnet is connected with the other end of the ceramic spacer through a second iron core pull rod; the contact or disconnection of the first contact piece and the second contact piece is controlled by the movement of the ceramic spacer.
The ceramic spacer is provided with a through hole and a blind hole, and the end parts of the first contact piece and the second contact piece are provided with corresponding ball contacts.
When the coil of the second electromagnet is electrified and the coil of the first electromagnet is not electrified, the ceramic spacer moves to enable the through hole to correspond to the ball head contact of the first contact piece and the ball head contact of the second contact piece, the ball head contact of the first contact piece is contacted with the ball head contact of the second contact piece, and the contacts are closed.
When the coil of the first electromagnet is electrified and the coil of the second electromagnet is not electrified, the ceramic spacer moves to enable the blind hole to correspond to the ball head contact of the first contact piece and the ball head contact of the second contact piece, the ball head contact of the first contact piece is separated from the ball head contact of the second contact piece, and the contacts are disconnected.
Pressure springs are respectively arranged on the back side of the ball head contact of the first contact piece and the back side of the ball head contact of the second contact piece and used for ensuring the pressure of the contacts; when the coils of the first electromagnet and the second electromagnet are all powered off, the ceramic spacer keeps the position unchanged under the action of contact pressure, and the influence of gravity or vibration on the position state of the ceramic spacer is avoided.
The utility model has the advantages that: the utility model discloses a two position machinery keeps direct current contactor, the ceramic spacer arc extinguishing mode that adopts, directly cut off upper and lower contact when breaking contact, not only arc extinguishing effect is better, has simplified inner structure moreover, has saved manufacturing cost; when the state is kept to be closed or opened, the corresponding state can be maintained through a mechanical structure without electrifying; only when the state needs to be switched, the corresponding electromagnet is electrified, so that the position of the ceramic spacer is changed, the contact can be switched between the closed state and the open state, and the energy-saving effect is good.
Drawings
Fig. 1 is a schematic diagram of a two-position mechanically held dc contactor of an embodiment.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Examples
As shown in fig. 1, the present embodiment provides a two-position mechanical holding dc contactor, which includes a contactor body 1; a first contact piece 4, a second contact piece 5, a ceramic spacer 8 arranged between the first contact piece 4 and the second contact piece 5, a first electromagnet 2 and a second electromagnet 3 for driving the ceramic spacer 8 to move are arranged in the contactor body 1; the first electromagnet 2 and the second electromagnet 3 are both composed of coils and iron cores; the iron core of the first electromagnet 2 is connected with one end of a ceramic spacer 8 through a first iron core pull rod 6, and the iron core of the second electromagnet 3 is connected with the other end of the ceramic spacer 8 through a second iron core pull rod 7; the contact or disconnection of the first contact piece 4 and the second contact piece 5 is controlled by the movement of the ceramic spacer 8; the ceramic spacer 8 is provided with a through hole and a blind hole, and the end parts of the first contact piece 4 and the second contact piece 5 are provided with corresponding ball contacts.
In the two-position mechanical latching dc contactor according to the present embodiment, when the coil of the second electromagnet 3 is energized and the coil of the first electromagnet 2 is de-energized, and the ceramic spacer 8 moves so that the through hole corresponds to the ball contact of the first contact piece 4 and the ball contact of the second contact piece 5, the ball contact of the first contact piece 4 contacts the ball contact of the second contact piece 5, and the contacts are closed.
In the two-position mechanical latching dc contactor according to this embodiment, when the coil of the first electromagnet 2 is energized and the coil of the second electromagnet 3 is de-energized, and the ceramic spacer 8 moves to make the blind hole correspond to the ball contact of the first contact piece 4 and the ball contact of the second contact piece 5, the ball contact of the first contact piece 4 is separated from the ball contact of the second contact piece 5, and the contacts are disconnected.
In the two-position mechanical latching direct current contactor of this embodiment, a first compression spring 9 is disposed on a back side of a ball contact of the first contact piece 4, a second compression spring 10 is disposed on a back side of a ball contact of the second contact piece 5, and the other ends of the first compression spring 9 and the second compression spring 10 respectively abut against the contactor body 1 to ensure pressure of the contacts; when the coils of the first electromagnet 2 and the second electromagnet 3 are all powered off, the ceramic spacer keeps the position unchanged under the action of contact pressure, and the influence of gravity or vibration on the position state of the ceramic spacer is avoided.
According to the double-position mechanical keeping direct current contactor, the ceramic spacer arc extinguishing mode is adopted, the upper contact and the lower contact are directly separated when the contacts are disconnected, the arc extinguishing effect is good, the internal structure is simplified, and the production and manufacturing cost is saved; when the state is kept to be closed or opened, the corresponding state can be maintained through a mechanical structure without electrifying; only when the state needs to be switched, the corresponding electromagnet is electrified, so that the position of the ceramic spacer is changed, the contact can be switched between the closed state and the open state, and the energy-saving effect is good.
The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.
Claims (5)
1. A two position mechanical hold DC contactor characterized in that: comprises a contactor body; the contactor body is internally provided with a first contact piece, a second contact piece, a ceramic spacer arranged between the first contact piece and the second contact piece, a first electromagnet and a second electromagnet, wherein the first electromagnet and the second electromagnet are used for driving the ceramic spacer to move; the first electromagnet and the second electromagnet are both composed of a coil and an iron core; the iron core of the first electromagnet is connected with one end of the ceramic spacer through a first iron core pull rod, and the iron core of the second electromagnet is connected with the other end of the ceramic spacer through a second iron core pull rod; the contact or disconnection of the first contact piece and the second contact piece is controlled by the movement of the ceramic spacer.
2. A two-position mechanical hold-down dc contactor as claimed in claim 1, wherein: the ceramic spacer is provided with a through hole and a blind hole, and the end parts of the first contact piece and the second contact piece are provided with corresponding ball contacts.
3. A two-position mechanical hold-down dc contactor as claimed in claim 2, wherein: when the coil of the second electromagnet is electrified and the coil of the first electromagnet is not electrified, the ceramic spacer moves to enable the through hole to correspond to the ball head contact of the first contact piece and the ball head contact of the second contact piece, the ball head contact of the first contact piece is contacted with the ball head contact of the second contact piece, and the contacts are closed.
4. A two-position mechanical hold-down dc contactor as claimed in claim 2, wherein: when the coil of the first electromagnet is electrified and the coil of the second electromagnet is not electrified, the ceramic spacer moves to enable the blind hole to correspond to the ball head contact of the first contact piece and the ball head contact of the second contact piece, the ball head contact of the first contact piece is separated from the ball head contact of the second contact piece, and the contacts are disconnected.
5. A two-position mechanical hold-down dc contactor as claimed in claim 2, wherein: pressure springs are respectively arranged on the back side of the ball head contact of the first contact piece and the back side of the ball head contact of the second contact piece and used for ensuring the pressure of the contacts; when the coils of the first electromagnet and the second electromagnet are all powered off, the ceramic spacer keeps the position unchanged under the action of contact pressure, and the influence of gravity or vibration on the position state of the ceramic spacer is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921719078.3U CN210296165U (en) | 2019-10-14 | 2019-10-14 | Double-position mechanical holding direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921719078.3U CN210296165U (en) | 2019-10-14 | 2019-10-14 | Double-position mechanical holding direct current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210296165U true CN210296165U (en) | 2020-04-10 |
Family
ID=70065979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921719078.3U Active CN210296165U (en) | 2019-10-14 | 2019-10-14 | Double-position mechanical holding direct current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210296165U (en) |
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2019
- 2019-10-14 CN CN201921719078.3U patent/CN210296165U/en active Active
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