CN206921752U - Improve the high-voltage DC contactor structure of reverse electric life - Google Patents
Improve the high-voltage DC contactor structure of reverse electric life Download PDFInfo
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- CN206921752U CN206921752U CN201720675907.7U CN201720675907U CN206921752U CN 206921752 U CN206921752 U CN 206921752U CN 201720675907 U CN201720675907 U CN 201720675907U CN 206921752 U CN206921752 U CN 206921752U
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- stationary contacts
- push rod
- shielding
- contacting plate
- moving contacting
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Abstract
The utility model discloses a kind of high-voltage DC contactor structure for improving reverse electric life, including seal casinghousing, earthenware, two stationary contacts being arranged side by side on earthenware, the movable moving contacting plate and push rod being built in earthenware are installed, push rod can drive moving contacting plate to connect or disconnect with two stationary contacts respectively in the inner chamber of seal casinghousing；Earthenware has one to accept the pipe main body of two stationary contacts, and pipe main body is the open hollow cylinder in downside, and the opening position in the upper inside surface of pipe main body and between two stationary contacts is also formed with an arc muscle extended down；The opening position in the inner chamber of pipe main body and between two stationary contacts is provided with shielding part in addition, shielding part is vertically positioned opposite with arc muscle, and shielding part can also act synergistically with arc muscle and keep apart two stationary contacts, out movement electric arc is produced to obstruct when two stationary contacts pass to reverse current, substantially increases the reverse electric life of D.C. contactor.
Description
Technical field
Contactor technical field is the utility model is related to, a kind of HVDC contact for improving reverse electric life is specifically provided
Device structure.
Background technology
At present, the D.C. contactor structure of in the market is adopted as more：Including seal casinghousing and it is installed in seal casinghousing
Two stationary contacts, moving contacting plate and drive mechanism in chamber, moving contacting plate and vertically positioned opposite, the driving machine of two stationary contacts difference
Structure mainly includes driving coil, dynamic iron core, push rod and back-moving spring, and when driving coil is powered, its caused magnetic force causes push rod
Move straight up, and drive moving contacting plate to be connected respectively with two stationary contacts, D.C. contactor is in Operating In Persistent Current Mode state；Drive
Moving winding power off when, push rod in the presence of back-moving spring straight down motion reset, and drive moving contacting plate respectively with two
Stationary contact disconnects, and D.C. contactor, which is in, disconnects working condition.
However, it is based under existing D.C. contactor structure, when leading to reverse direct current on two stationary contacts, in permanent magnet
Magnetic fields under, electric arc out movement can be produced between two stationary contacts, it is necessarily secondary so to lead to reverse current in D.C. contactor
After number, to blowing short circuit occurs for caused electric arc, so as to cause D.C. contactor product failure.
In view of this, it is special to propose the utility model.
The content of the invention
In order to overcome drawbacks described above, the utility model provides a kind of high-voltage DC contactor, and it can be good at obstructing
Out movement electric arc is produced between two stationary contacts, substantially increases the reverse electric life of D.C. contactor.
The utility model in order to solve its technical problem used by technical scheme be：A kind of height for improving reverse electric life
Straightening stream contactor construction, including seal casinghousing, be provided with the inner chamber of the seal casinghousing earthenware, two be arranged side by side
What the moving contacting plate and one being built in the stationary contact on the earthenware, an activity in the earthenware were vertically arranged pushes away
Bar, the moving contacting plate and two stationary contacts are vertically positioned opposite respectively, and the upside of the push rod contacts with described move
Piece is connected, and the push rod can also drive the moving contacting plate to be connected respectively with two stationary contacts, or drives institute
Moving contacting plate is stated to disconnect with two stationary contacts respectively；The earthenware has one to accept the pipe of two stationary contacts
Main body, the pipe main body are the open hollow cylinder structure in downside, and in the upper inside surface of the pipe main body and between two
Opening position between the individual stationary contact is also formed with an arc muscle extended down；In addition in the inner chamber of the pipe main body
In and the opening position between two stationary contacts be provided with a shielding part, the shielding part with the arc muscle vertically
It is positioned opposite, and the shielding part can also act synergistically with the arc muscle and keep apart two stationary contacts, with resistance
Out movement electric arc is produced when two stationary contacts pass to reverse current.
As further improvement of the utility model, the arc muscle is sheet；The shielding part has one by insulation material
Shielding body made of material, the shielding body are the open hollow cylinder structure in upside, the shielding body be located by connecting in
On the upside of the push rod, and the shielding body is also located at the top of the moving contacting plate simultaneously；When the push rod vertically to
During upper motion, the arc muscle can be freely inserted in the shielding body, and the bottom of the arc muscle is not touched simultaneously
The upside of the push rod and the bottom side of the shielding body.
As further improvement of the utility model, two are also formed with symmetrically in all side walls of the shielding body
All side walls of the shielding body are separated into two shielding walls by breach, two breach, and two shielding wall corresponds to lean on respectively
Two stationary contacts are bordering on, and corresponding can also be sheltered from two stationary contacts.
As further improvement of the utility model, the cross section of the shielding body is the circular, ellipse of two breach of band
One kind in circle, the shape of a saddle, rhombus.
As further improvement of the utility model, realize that the push rod can also drive the moving contacting plate respectively with two
The individual stationary contact connects, or the structure for driving the moving contacting plate to be disconnected respectively with two stationary contacts is：It is additionally provided with
Driving coil, dynamic iron core and back-moving spring, the driving coil positioning is arranged at the inner chamber bottom of the seal casinghousing, described
Dynamic iron core is movably placed in the space that the driving coil surrounds, and the downside tight fit of the push rod is placed through the dynamic iron core
In, the back-moving spring is sheathed on outside the bottom of the push rod；When the driving coil is powered, the driving coil produces magnetic
Power causes the dynamic iron core to drive the push rod to move straight up, and and then cause the moving contacting plate respectively with described in two
Stationary contact connects；When the driving coil powers off, motion is multiple straight down in the presence of the back-moving spring for the push rod
Position, and and then the moving contacting plate is disconnected with two stationary contacts respectively.
The beneficial effects of the utility model are：By in the upper inside surface of pipe main body and between two stationary contacts
Opening position be formed with an arc muscle extended down, and positioning is socketed with shielding part, shielding part on the upside of push rod
With arc muscle cooperate, equivalent between two stationary contacts formed one " shielding curtain wall ", thus, between two stationary contacts to
The electric arc of motion will be blocked by " shielding curtain wall " so that arc motion deflects, or resilience, and then avoids because of electricity
Arc substantially increases the reverse electrical endurance of D.C. contactor to blowing and caused short circuit phenomenon.
Brief description of the drawings
Fig. 1 is the part section structural representation that high-voltage DC contactor described in the utility model is under the first visual angle；
Fig. 2 is the cross-sectional view that high-voltage DC contactor described in the utility model is under the second visual angle；
Fig. 3 a, Fig. 3 b and Fig. 3 c are respectively three kinds of structural representations of the cross section of the shielding body.
With reference to accompanying drawing, make the following instructions：
1 --- earthenware 2 --- stationary contact
3 --- moving contacting plate 4 --- push rods
5 --- shielding part 10 --- pipe main bodys
11 --- arc muscle
Embodiment
Preferred embodiment of the present utility model is described in detail referring to figure.
Embodiment 1：
Refer to shown in accompanying drawing 1 and Fig. 2, high-voltage DC contactor respectively described in the utility model is in two differences and regarded
Cross-sectional view under angle.Described high-voltage DC contactor structure includes seal casinghousing, the inner chamber of the seal casinghousing
In an earthenware 1, two stationary contact 2 being arranged side by side on the earthenware 1, an activity are installed are built in the earthenware
The push rod 4 that moving contacting plate 3 and one in 1 is vertically arranged, the moving contacting plate 3 and two difference of stationary contacts 2 are vertically
Positioned opposite, the upside of the push rod 4 is connected with the moving contacting plate 3, and the push rod 4 can also drive the dynamic contact
Piece 3 connects with two stationary contacts 2 respectively, or drives the moving contacting plate 3 to be disconnected respectively with two stationary contacts 2；
Particularly, the earthenware 1 has one to accept the pipe main body 10 of two stationary contacts 2, and the pipe main body 10 is downside
Open hollow cylinder structure, and in the upper inside surface of the pipe main body 10 and between two stationary contacts 2
Opening position is also formed with an arc muscle 11 extended down；In addition in the inner chamber of the pipe main body 10 and between two institutes
To state the opening position between stationary contact 2 and be provided with a shielding part 5, the shielding part 5 and the arc muscle 11 are vertically positioned opposite,
And the shielding part 5 can also act synergistically with the arc muscle 11 and keep apart two stationary contacts 2, with barrier two
The stationary contact 2 produces out movement electric arc when passing to reverse current.Arc muscle cooperates with shielding part, equivalent at two
One " shielding curtain wall " is formed between stationary contact, thus, the electric arc of out movement between two stationary contacts can be hidden by " shielding curtain wall "
Gear so that arc motion deflects, or resilience, and then avoid because electric arc to blow and caused by short circuit phenomenon, carry significantly
The high reverse electrical endurance of contactor.
In the present embodiment, it is preferred that the arc muscle 11 is sheet；The shielding part 5 has one by insulating materials system
Into shielding body, the shielding body is the open hollow cylinder structure in upside, and the shielding body is located by connecting in described
On the upside of push rod 4, and the shielding body is also located at the top of the moving contacting plate 3 simultaneously；When the push rod 4 straight up
During motion, the arc muscle 11 can be freely inserted in the shielding body, and the bottom of the arc muscle 11 is not touched simultaneously
And the upside of the push rod 4 and the bottom side of the shielding body.On the one hand, the arc muscle is inserted in shielding body, can be prevented
Only electric arc passes through between arc muscle and shielding body, realizes effectively shielding；On the other hand, the bottom of the arc muscle is not touched
The upside of the push rod and the bottom side of the shielding body, can avoid the arc muscle from being produced respectively between shielding body and push rod
Interference.
It is further preferred that two symmetrical breach are also formed with all side walls of the shielding body, described in two
All side walls of the shielding body are separated into two shielding walls by breach, and two shielding wall corresponds to described quiet close to two respectively
Contact 2, and can also shelter from two stationary contacts 2 corresponding under the drive of the push rod.
Still more preferably, the cross section of the shielding body be the circles of two breach of band, ellipse, the shape of a saddle,
One kind in rhombus, it see shown in accompanying drawing 2, Fig. 3 a, Fig. 3 b and Fig. 3 c.
In addition, in the present embodiment, realize the push rod 4 can also drive the moving contacting plate 3 respectively with described in two
Stationary contact 2 connects, or the structure for driving the moving contacting plate 3 to be disconnected respectively with two stationary contacts 2 is：It is additionally provided with driving
Coil, dynamic iron core and back-moving spring, the driving coil positioning are arranged at the inner chamber bottom of the seal casinghousing, the dynamic iron
Core is movably placed in the space that the driving coil surrounds, and the downside tight fit of the push rod 4 is placed through in the dynamic iron core, institute
Back-moving spring is stated to be sheathed on outside the bottom of the push rod 4；When the driving coil is powered, the driving coil, which produces magnetic force, to be made
Obtaining the dynamic iron core drives the push rod 4 to move straight up, and and then make it that the moving contacting plate 3 is described quiet with two respectively
Contact 2 connects, and the high-voltage DC contactor is in Operating In Persistent Current Mode state；When the driving coil powers off, the push rod 4 is in institute
State in the presence of back-moving spring that motion resets straight down, and and then cause the moving contacting plate 3 respectively with two stationary contacts
Point 2 disconnects, and the high-voltage DC contactor, which is in, disconnects working condition.
In summary, the utility model passes through the position in the upper inside surface of pipe main body and between two stationary contacts
The place of putting also is formed with an arc muscle extended down, and positioning is socketed with a shielding part, shielding part on the upside of push rod
With arc muscle cooperate, equivalent between two stationary contacts formed one " shielding curtain wall ", thus, between two stationary contacts to
The electric arc of motion will be blocked by " shielding curtain wall " so that arc motion deflects, or resilience, and then avoids because of electricity
Arc substantially increases the reverse electrical endurance of D.C. contactor to blowing and caused short circuit phenomenon.
Described above is only preferred embodiment of the present utility model, but is not limited to the utility model, should be referred to
Go out, for those skilled in the art, can be with the premise of the utility model technical principle is not departed from
Some improvement and modification are made, these improvement and modification also should be regarded as in the scope of protection of the utility model.
Claims (5)
1. a kind of high-voltage DC contactor structure for improving reverse electric life, including seal casinghousing, the inner chamber of the seal casinghousing
In an earthenware (1) is installed, two stationary contacts (2) being arranged side by side on the earthenware (1), an activity be built in it is described
Moving contacting plate (3) and a push rod being vertically arranged (4) in earthenware (1), the moving contacting plate (3) and two it is described quiet
Contact (2) is vertically positioned opposite respectively, and the upside of the push rod (4) is connected with the moving contacting plate (3), and the push rod
(4) moving contacting plate (3) can also be driven to be connected respectively with two stationary contacts (2), or drive the moving contacting plate
(3) disconnected respectively with two stationary contacts (2)；It is characterized in that：The earthenware (1) has one to accept described in two
The pipe main body (10) of stationary contact (2), the pipe main body (10) they are the open hollow cylinder structure in downside, and in the pipe main body
(10) opening position in upper inside surface and between two stationary contacts (2) is also formed with one and extended down
Arc muscle (11)；The opening position in the inner chamber of the pipe main body (10) and between two stationary contacts (2) is set in addition
A shielding part (5) is equipped with, the shielding part (5) and the arc muscle (11) are vertically positioned opposite, and the shielding part (5) is also
It can be acted synergistically with the arc muscle (11) and keep apart two stationary contacts (2), to obstruct two stationary contacts
(2) out movement electric arc is produced when passing to reverse current.
2. the high-voltage DC contactor structure according to claim 1 for improving reverse electric life, it is characterised in that：It is described every
Arc muscle (11) is sheet；The shielding part (5) has one to shield body made of insulating materials, and the shielding body is upside
Open hollow cylinder structure, the shielding body are located by connecting on the upside of the push rod (4), and the shielding simultaneously this
Body is also located at the top of the moving contacting plate (3)；
When the push rod (4) moves straight up, the arc muscle (11) can be freely inserted in the shielding body, and
The bottom of the arc muscle (11) does not touch the upside of the push rod (4) and the bottom side of the shielding body simultaneously.
3. the high-voltage DC contactor structure according to claim 2 for improving reverse electric life, it is characterised in that：Described
Shield and two symmetrical breach are also formed with all side walls of body, two breach divide all side walls of the shielding body
Two shielding walls are divided into, two shielding wall is corresponded to close to two stationary contacts (2) respectively, and can also be corresponding by two
The stationary contact (2) shelters from.
4. the high-voltage DC contactor structure according to claim 3 for improving reverse electric life, it is characterised in that：The screen
The cross section for covering body is the circle of two breach of band, one kind in ellipse, the shape of a saddle, rhombus.
5. the high-voltage DC contactor structure according to claim 1 for improving reverse electric life, it is characterised in that：Realize institute
Stating push rod (4) can also drive the moving contacting plate (3) to be connected respectively with two stationary contacts (2), or drive described dynamic
The structure that contact chip (3) disconnects with two stationary contacts (2) respectively is：Driving coil, dynamic iron core and back-moving spring are additionally provided with,
The driving coil positioning is arranged at the inner chamber bottom of the seal casinghousing, and the dynamic iron core is movably placed in the driving coil
In the space surrounded, the downside tight fit of the push rod (4) is placed through in the dynamic iron core, and the back-moving spring is sheathed on described
Outside the bottom of push rod (4)；When the driving coil is powered, the driving coil produces magnetic force and causes the dynamic iron core to drive institute
State push rod (4) to move straight up, and and then the moving contacting plate (3) is connected with two stationary contacts (2) respectively；When
During the driving coil power-off, motion resets the push rod (4) straight down in the presence of the back-moving spring, and and then makes
The moving contacting plate (3) is obtained to disconnect with two stationary contacts (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720675907.7U CN206921752U (en) | 2017-06-12 | 2017-06-12 | Improve the high-voltage DC contactor structure of reverse electric life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720675907.7U CN206921752U (en) | 2017-06-12 | 2017-06-12 | Improve the high-voltage DC contactor structure of reverse electric life |
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| Publication Number | Publication Date |
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| CN206921752U true CN206921752U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720675907.7U Active CN206921752U (en) | 2017-06-12 | 2017-06-12 | Improve the high-voltage DC contactor structure of reverse electric life |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036905A (en) * | 2018-08-02 | 2018-12-18 | 安徽森力汽车电子有限公司 | A kind of novel arc extinguishing grid and its arc-chutes |
| CN109273324A (en) * | 2018-10-08 | 2019-01-25 | 北京无线电测量研究所 | A kind of contact system with high voltage direct current electric arc safeguard structure |
| CN111933488A (en) * | 2020-06-24 | 2020-11-13 | 华为技术有限公司 | Movable contact structure and contactor |
| CN112041961A (en) * | 2018-04-19 | 2020-12-04 | Tdk电子股份有限公司 | Switching device |
-
2017
- 2017-06-12 CN CN201720675907.7U patent/CN206921752U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112041961A (en) * | 2018-04-19 | 2020-12-04 | Tdk电子股份有限公司 | Switching device |
| US11462379B2 (en) | 2018-04-19 | 2022-10-04 | Tdk Electronics Ag | Switching device with two stationary contacts and a movable contact in a switching chamber |
| CN112041961B (en) * | 2018-04-19 | 2023-08-22 | Tdk电子股份有限公司 | Switching device |
| US11854757B2 (en) | 2018-04-19 | 2023-12-26 | Tdk Electronics Ag | Switching device with two stationary contacts and a movable contact in a switching chamber |
| CN109036905A (en) * | 2018-08-02 | 2018-12-18 | 安徽森力汽车电子有限公司 | A kind of novel arc extinguishing grid and its arc-chutes |
| CN109273324A (en) * | 2018-10-08 | 2019-01-25 | 北京无线电测量研究所 | A kind of contact system with high voltage direct current electric arc safeguard structure |
| CN111933488A (en) * | 2020-06-24 | 2020-11-13 | 华为技术有限公司 | Movable contact structure and contactor |
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