CN209249392U - D.C. contactor and its structure of contact terminal - Google Patents
D.C. contactor and its structure of contact terminal Download PDFInfo
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- CN209249392U CN209249392U CN201822000439.0U CN201822000439U CN209249392U CN 209249392 U CN209249392 U CN 209249392U CN 201822000439 U CN201822000439 U CN 201822000439U CN 209249392 U CN209249392 U CN 209249392U
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Abstract
The utility model relates to D.C. contactor technical fields, provide a kind of structure of contact terminal for D.C. contactor, including dynamic contact mechanism and static contact mechanism；Dynamic contact mechanism includes moving contact component and the first busbar, and static contact mechanism includes static contact and the second busbar, and static contact is located within the scope of the activity trajectory of moving contact component；Second busbar and moving contact component are L-shaped structure, and two L-shaped structures all have opening, two openings towards all the same.A kind of D.C. contactor is provided, by the way that moving contact component is also configured as L shape, and it is consistent with the placing direction of moving contact component to limit the second busbar, it can guarantee when dynamic contact mechanism contacts static contact mechanism, when closing a floodgate through-flow, the electrodynamic repulsion force of moving contact component wherein generated between one section and the first busbar can offset another section of electrodynamic repulsion force generated between the first busbar of moving contact component, greatly reduce contact pressure required for contact part.
Description
Technical field
The utility model relates to D.C. contactor technical field, specially a kind of D.C. contactor and its structure of contact terminal.
Background technique
In order to reduce the touch voltage and step voltage between car body and ground in DC traction power-supply system, generally it is being equipped with
The station of traction substation and parking lot setting side rail wear can be by rails when rail above earth potential is exceeded
It is connected with substation ground busbar, this is a kind of safeguard procedures of protection personal safety general in the world.And rail is electric
Normally closed contactor in the limits device of position plays key effect, it is in addition to requiring contactor can frequent disjunction rated current and critical
Electric current also needs the short circuit current for being resistant to 3 times of same rank contactor or more.
Existing D.C. contactor structure of contact terminal in the market, moving contact component are set as strip more, when closing a floodgate through-flow,
Contact pressure required for the contact part of moving contact component is excessive, and electrodynamic repulsion force is big, and to solve this defect needs multipole contact
Parallel connection is just resistant to larger short circuit current, contactor volume can be brought excessive in this way, and operation power is excessive and cost is excessively high asks
Topic.
Utility model content
The purpose of this utility model is to provide a kind of D.C. contactor and its structure of contact terminal, by by moving contact component
It is set as L shape, and it is consistent with the placing direction of moving contact component to limit the second busbar, it is ensured that when dynamic contact mechanism contact is quiet
When contact mechanism, that is, when closing a floodgate through-flow, the electrodynamic repulsion force of moving contact component wherein generated between one section and the first busbar can
Another section of electrodynamic repulsion force generated between the first busbar for offsetting moving contact component, greatly reduces required for contact part
Contact pressure.
To achieve the above object, the utility model embodiment provides the following technical solutions: a kind of for D.C. contactor
Structure of contact terminal, including dynamic contact mechanism, and can be with the static contact mechanism of the dynamic contact mechanism movable contact；The moving contact
Mechanism include moving contact component and for the contact assembly installation the first busbar, the static contact mechanism include can with it is described
The static contact of moving contact component cooperation and the second busbar installed for the static contact, the static contact are located at the moving contact
Within the scope of the activity trajectory of component；Second busbar and the moving contact component are L-shaped structure, two L shape knots
Structure all has opening, two openings towards all the same.
Further, the moving contact component has parallel and arranged side by side multi-disc moving contact plate, per a piece of dynamic touching
Head plate all has the contact for static contact mechanism contact.
Further, the dynamic contact mechanism further include can drive the moving contact component around first rotation axis rotate to
The pivoted frame of the static contact mechanism contact, the pivoted frame have two piece of first mounting plate being oppositely arranged, the moving contact component
It installs on two piece of first mounting plate and between two pieces of first mounting plates.
Further, each moving contact plate and the pivoted frame are rotatably connected and pivot center between the two is second turn
Shaft line, the first rotation axis are parallel to second rotation axis, and the pivoted frame, which also has, is mounted on two pieces of first peaces
The second mounting plate between loading board, each moving contact plate between second mounting plate and the static contact mechanism, and
It is folded with touch spring between second mounting plate and the moving contact plate and the touch spring is respectively positioned on the contact
The same rotating side that the moving contact plate is rotated around the second rotation axis.
It further, further include for limiting the moving contact component around the limit of the second rotation axis inordinate rotation
Part.
Further, pass through the welding that is flexible coupling between the moving contact component and first busbar；It is described to be flexible coupling and institute
The quantity for stating moving contact plate is identical and correspond, and described is flexible coupling and institute per a piece of moving contact plate by corresponding
State the welding of the first busbar.
It further, further include self-excitation type magnetic blow-out component, the self-excitation type magnetic blow-out component includes the blowout coil being sequentially connected in series
And arc leading angle, the blowout coil are mounted on second busbar, and are connected with second busbar, the arc leading angle is set
In arc-chutes.
Further comprise for drive the dynamic contact mechanism contact the first driving assembly of the static contact mechanism with
And for driving the dynamic contact mechanism to separate the second driving assembly of the static contact mechanism.
Further, first driving assembly includes switching-in spring, and the switching-in spring is connect with the pivoted frame, and is located at
The lower section of the pivoted frame；Second driving assembly includes electromagnet and connecting rod, and the electromagnet passes through the connecting rod and institute
State pivoted frame connection；The driving direction of the electromagnet is opposite with the driving direction of the switching-in spring.
The utility model embodiment provides another technical solution: a kind of D.C. contactor, including shell further include above-mentioned
Structure of contact terminal, the shell has two pieces of third mounting plates being oppositely arranged, has peace between two pieces of third mounting plates
Fill the installation section of the structure of contact terminal.
Compared with prior art, the utility model has the beneficial effects that
1, by the way that moving contact component is also configured as L shape, and the placing direction one of the second busbar and moving contact component is limited
It causes, it is ensured that when dynamic contact mechanism contacts static contact mechanism, that is, when closing a floodgate through-flow, a wherein Duan Yu for moving contact component
Another section of electronic reprimand generated between the first busbar that the electrodynamic repulsion force generated between one busbar can offset moving contact component
Power greatly reduces contact pressure required for contact part.
2, it is contacted by multiconductor, increases the contact area and radiating surface between dynamic contact mechanism and static contact mechanism
Product, reduces contact resistance, while can also effectively reduce the closing rebound of moving contact component.
3, by setting touch spring, biggish contact pressure is capable of providing when moving contact component resists it, together
When be dispersed in the electrodynamic repulsion force between moving contact plate on multiple contacts.
4, by setting L shape for the second busbar, so that blowout coil there are enough spaces to install, it is convenient for and is mounted on it
The blowout coil in face and the arc leading angle in arc-chutes are connected to form self-excitation type magnetic blow-out component.
Detailed description of the invention
Fig. 1 is a kind of dynamic contact mechanism of the structure of contact terminal for D.C. contactor provided by the embodiment of the utility model
Structural schematic diagram；
Fig. 2 be a kind of dynamic contact mechanism of the structure of contact terminal for D.C. contactor provided by the embodiment of the utility model with
Structural schematic diagram when static contact mechanism contacts；
Fig. 3 is a kind of schematic diagram of internal structure of D.C. contactor provided by the embodiment of the utility model；
Fig. 4 is a kind of overall structure diagram of D.C. contactor provided by the embodiment of the utility model；
In appended drawing reference: 1- dynamic contact mechanism；10- moving contact component；100- moving contact plate；101- contact axis；11- turns
Frame；The first mounting plate of 110-；111- turret shaft；The second mounting plate of 112-；12- touch spring；The first busbar of 13-；14- first is female
Arrange support；15- is flexible coupling；2- static contact mechanism；20- static contact；The second busbar of 21-；22- the second busbar support；3- locating part；
30- kidney slot；50- blowout coil；51- arc leading angle；52- arc-chutes；60- switching-in spring；61- electromagnet；62- connecting rod；8- shell
Body；The contact 9-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model embodiment provides a kind of structure of contact terminal for D.C. contactor, including dynamic touching
Head mechanism 1, and can be with the static contact mechanism 2 of 1 movable contact of dynamic contact mechanism；The dynamic contact mechanism 1 includes dynamic touching
Head assembly 10 and the first busbar 13 installed for the contact assembly 10, the static contact mechanism 2 includes can be with the dynamic touching
The static contact 20 that head assembly 10 cooperates and the second busbar 21 for the static contact 20 installation, the static contact 20 is located at described
Within the scope of the activity trajectory of moving contact component 10, second busbar 21 and the moving contact component 10 are L-shaped structure, and two
A L-shaped structure all has opening, two openings towards all the same.In the present embodiment, static contact 20 is stationary contact
The position directly contacted in head mechanism 2 with moving contact component 10, it is contacted with moving contact component 10 just achievees the purpose that combined floodgate, with
Moving contact component 10 separates, and just achievees the purpose that separating brake.Two busbars can be used as conducting wire.By moving contact component 10 with
And second busbar 21 be disposed as L shape, and it is consistent with the placing direction of moving contact component 10 to limit the second busbar 21, Ke Yibao
Card is when dynamic contact mechanism 1 contacts static contact mechanism 2, that is, when closing a floodgate through-flow, wherein one section and the first mother of moving contact component 10
The electrodynamic repulsion force that generates can offset moving contact component 10 between row 13 another section generates electronic between the first busbar 13
Repulsion greatly reduces contact pressure required for contact 9.By in Fig. 1, it can be seen that the general shape of moving contact component 10
For L shape, horizontal one section be flexible coupling described in 15 and the first busbar 13 welding below, vertical one section is used to
Touch spring 12 is compressed, it is smooth by the rat tail between smooth between this two sections, touching can be compressed the vertical section is opposite
The one side of head spring 12 is equipped with protrusion, which can be in order to contact with static contact 20, and the form of contact refers to figure
2.Preferably, first busbar 13 is propped equipped with the first busbar support 14, is additionally provided with the second busbar support 22 and props described
Two busbars 21.
Optimize above-mentioned moving contact component, referring to Fig. 1, the moving contact component 10 has parallel and arranged side by side multi-disc
Moving contact plate 100 all has the contact 9 for the static contact mechanism 2 contact per a piece of moving contact plate 100.In this implementation
In example, the moving contact component 10 is improved to be composed of multi-disc moving contact plate 100 by the application, will in the prior art usually
Single contact be improved to multiconductor, on the one hand, increase the contact between the dynamic contact mechanism 1 and the static contact mechanism 2
Area and heat dissipation area reduce contact resistance, on the other hand, moreover it is possible to effectively reduce the combined floodgate bullet of the moving contact component 10
It jumps, so that the service life is longer for the electricity of this structure, tolerance is stronger in short-term, and compact overall structure, starts from popularization and use.Make
For a preferred scheme of the present embodiment, it is folded with insulation spacer between adjacent two panels moving contact plate 100, can be carried out
Isolation.
Continue to optimize above-mentioned dynamic contact mechanism 1, please refer to Fig. 1-Fig. 3, the dynamic contact mechanism 1 further include can drive it is described
Moving contact component 10 is rotated around first rotation axis to the pivoted frame 11 contacted with the static contact mechanism 2, and the pivoted frame 11 has
Two piece of first mounting plate 110 being oppositely arranged, the moving contact component 10 are installed on two piece of first mounting plate 110 and being located at
Between two pieces of first mounting plates 110.In the present embodiment, the moving contact component 10 is located at two piece of first mounting plate 110
In the section of formation, the pivoted frame 11 is rotated, and the pivoted frame 11 drives moving contact component 10 to rotate, and present dynasty is close to the static contact
When the direction rotation of mechanism 2, i.e., progress feed motion is divided when present dynasty rotates far from the direction of the static contact mechanism 2
Lock movement.Rotation axis of the turret shaft 111 as the pivoted frame 11 can be used, it is preferred that the turret shaft 111 has two
It is a, and be respectively perpendicular to two piece of first mounting plate 110 and be arranged, rotation axis, that is, above-mentioned first rotation axis of the turret shaft 111.
Above-mentioned dynamic contact mechanism 1 is advanced optimized, referring to Fig. 1, each moving contact plate 100 can turn with the pivoted frame 11
Dynamic connection and pivot center between the two is second rotation axis, the first rotation axis is parallel to second rotation axis,
The pivoted frame 11 also has the second mounting plate 112 being mounted between two pieces of first mounting plates 110, each moving contact
Plate 100 is between second mounting plate 112 and the static contact mechanism 2, and second mounting plate 112 and the dynamic touching
Be folded with touch spring 12 and the touch spring 12 between head plate 100 and the contact be respectively positioned on the moving contact plate 100 around
The same rotating side of the second rotation axis rotation.In the present embodiment, the second mounting plate 112 is mounted on two piece of first installation
After between plate 110, moving contact component 10 can be compressed when activity on second mounting plate 112, therefore in second peace
Touch spring 12 is set in loading board 112, when moving contact component 10 compresses, can be pushed down the touch spring 12, at this time can
Biggish contact pressure is provided, while is dispersed in the electrodynamic repulsion force between the moving contact plate 100 on multiple contacts.It can
Using the rotation axis using the contact axis 101 as the moving contact component 10, it is preferred that contact axis 101 sequentially passes through each piece
On the one hand each piece of moving contact plate 100 can be stringed together, on the other hand can be used as its rotation axis, the touching by moving contact plate 100
Head axis 101 can be caught in the reserved through-hole of two piece of first mounting plate 110 beyond the part outside the moving contact component 10, and can
To rotate in the through hole, it is generally the case that under the action of frictional force, when pivoted frame 11 rotates, 10 meeting of moving contact component
And then pivoted frame 11 rotates together, and after touching static contact mechanism 2, the moving contact component 10 is resisted, contact axis
101 can just rotate in its corresponding through-hole, and moving contact component 10 will compress touch spring 12 at this time.Preferably, Mei Yidong
Contact plate 100 is all corresponding at least one touch spring 12, to guarantee that electrodynamic repulsion force preferably disperses.
Above scheme is advanced optimized, Fig. 2 and Fig. 3 are please referred to, this structure further includes for limiting the moving contact component
10 around the second rotation axis inordinate rotation locating part 3.In the present embodiment, moving contact is limited by the locating part 3
The movable amplitude of component 10 allows it to rotate in the angular range of setting, is unlikely to the width because being unable to control its rotation
It spends and leads to the uncontrollable of electrodynamic repulsion force.As a preferred scheme of the present embodiment, which can be limit shaft,
It sequentially passes through each moving contact plate 100, specifically all has kidney slot 30, limit shaft on each moving contact plate 100
It is passed through from these kidney slots 30, stops its overexercise during moving contact component 10 rotates, the locating part 3 peace
The position of dress can the amplitude of the moving contact component 10 rotation according to actual needs select to install.It certainly in addition to this, can also
To limit 10 inordinate rotation of moving contact component such as fixture block using others.
Continue to optimize above-mentioned dynamic contact mechanism 1, please refers to Fig. 2 and Fig. 3, the moving contact component 10 and first busbar
Pass through 15 welding that are flexible coupling between 13；The 15 and one-to-one correspondence identical as the quantity of the moving contact plate 100 that are flexible coupling, often
The a piece of moving contact plate 100 passes through corresponding be flexible coupling 15 and first busbar 13 welding.In the present embodiment
In, by 15 and the bus welding of being individually flexible coupling, electric conductivity can be made stronger, the electric current of receiving is bigger, and resistance value is smaller, mentions
Rise the service life at the position.
As the optimization above scheme of the utility model embodiment, referring to Fig. 3, this structure further includes self-excitation type magnetic blow-out group
Part, the self-excitation type magnetic blow-out component include the blowout coil 50 and arc leading angle 51 being sequentially connected in series, and the blowout coil 50 is installed
It connects on second busbar 21, and with second busbar 21, the arc leading angle 51 is set in arc-chutes 52.In fact,
Each structure of contact terminal in the prior art requires (to be named as self-excitation type in the utility model with self-excitation type magnetic blow-out system
Magnetic blow-out component, actually they are the same), however in the prior art in order to which the tolerance in short-term of contactor can be improved,
Therefore usually it will be designed as linear for the busbar of system installation, however this way will be not easy to self-excitation type magnetic blow-out component
Installation, it is low so as to cause production efficiency, and in the present embodiment, which is set as L shape, so that the L-shaped structure has
For the sufficient space of self-excitation type magnetic blow-out component installation, and then processing efficiency is improved, and high yield rate.
As the optimization above scheme of the utility model embodiment, Fig. 1-3 is please referred to, this structure further includes for driving
It states dynamic contact mechanism 1 and contacts the first driving assembly of the static contact mechanism 2 and for driving the dynamic contact mechanism 1 to separate
Second driving assembly of the static contact mechanism 2.In the present embodiment, the activity of the dynamic contact mechanism 1 is all the need for driving
Dynamic component can so achieve the purpose that remote control come what is driven.Include as first driving assembly in the present embodiment
Switching-in spring 60, the switching-in spring 60 are capable of providing the power of combined floodgate, to drive the pivoted frame 11 to rotate, until each dynamic touching
Head plate 100 is contacted with static contact 20, and touch spring 12 is compressed to after certain excess of stroke, combined floodgate can be completed, the switching-in spring
60 are located at the lower section of the pivoted frame 11, it has by the characteristic of remote control.In addition, second driving assembly includes the electromagnetism
Iron 61 and the connecting rod 62, specifically, the electromagnet 61 pulls the reversion of pivoted frame 11 (relative to conjunction by the connecting rod 62
Rotating forward when lock), while switching-in spring 60 is compressed, sequence of movement and switching order are on the contrary, can be completed separating brake, using electromagnetism
Iron 61 has magnetic characteristic after being powered, so that the purpose of remote control also may be implemented in the process.
Fig. 3 and Fig. 4 are please referred to, the utility model embodiment provides a kind of D.C. contactor, including shell 8 and above-mentioned
Structure of contact terminal, the shell 8 have two pieces of third mounting plates being oppositely arranged, have installation between two pieces of third mounting plates
The installation section of the structure of contact terminal.In the present embodiment, structure of contact terminal is mounted in shell 8, and shell 8 has a bottom
Seat, then besides two pieces of parallel third mounting plates, other two sides are penetrating, convenient for heat dissipation.It is equipped on the first mounting plate 110
Turret shaft 111 has the through-hole for the turret shaft 111 insertion on third mounting plate, can be to the branch of pivoted frame 11 1 rotations
Point.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of structure of contact terminal for D.C. contactor, including dynamic contact mechanism, and can be with the dynamic contact mechanism activity
The static contact mechanism of contact；It is characterized by: the dynamic contact mechanism includes moving contact component and the confession moving contact component
First busbar of installation, the static contact mechanism includes can be with the static contact of moving contact component cooperation and for the stationary contact
Second busbar of head installation, the static contact are located within the scope of the activity trajectory of the moving contact component；Second busbar with
And the moving contact component is L-shaped structure, two L-shaped structures all have opening, and the direction of two openings is homogeneous
Together.
2. being used for the structure of contact terminal of D.C. contactor as described in claim 1, it is characterised in that: the moving contact component has
Parallel and arranged side by side multi-disc moving contact plate all has the touching for static contact mechanism contact per a piece of moving contact plate
Point.
3. being used for the structure of contact terminal of D.C. contactor as claimed in claim 2, it is characterised in that: the dynamic contact mechanism also wraps
Including can drive the moving contact component to rotate around first rotation axis to the pivoted frame contacted with the static contact mechanism, the pivoted frame
With two piece of first mounting plate being oppositely arranged, the moving contact component is installed on two piece of first mounting plate and positioned at two pieces of institutes
It states between the first mounting plate.
4. being used for the structure of contact terminal of D.C. contactor as claimed in claim 3, it is characterised in that: each moving contact plate and institute
State that pivoted frame is rotatably connected and pivot center between the two is second rotation axis, the first rotation axis is parallel to second
Pivot center, the pivoted frame also have the second mounting plate being mounted between two pieces of first mounting plates, each moving contact
Plate presss from both sides between second mounting plate and the static contact mechanism, and between second mounting plate and the moving contact plate
The moving contact plate is respectively positioned on equipped with touch spring and the touch spring and the contact to rotate around the second rotation axis
Same rotating side.
5. being used for the structure of contact terminal of D.C. contactor as claimed in claim 4, it is characterised in that: further include described for limiting
Locating part of the moving contact component around the second rotation axis inordinate rotation.
6. being used for the structure of contact terminal of D.C. contactor as claimed in claim 2, it is characterised in that: the moving contact component and institute
It states between the first busbar through the welding that is flexible coupling；It is described to be flexible coupling identical as the quantity of the moving contact plate and correspond, often
The a piece of moving contact plate described is flexible coupling and first busbar welds by corresponding.
7. being used for the structure of contact terminal of D.C. contactor as described in claim 1, it is characterised in that: further include self-excitation type magnetic blow-out group
Part, the self-excitation type magnetic blow-out component include the blowout coil and arc leading angle being sequentially connected in series, and the blowout coil is mounted on described
It on second busbar, and connects with second busbar, the arc leading angle is set in arc-chutes.
8. being used for the structure of contact terminal of D.C. contactor as claimed in claim 3, it is characterised in that: further include described for driving
Dynamic contact mechanism contacts the first driving assembly of the static contact mechanism and for driving the dynamic contact mechanism separately described
Second driving assembly of static contact mechanism.
9. being used for the structure of contact terminal of D.C. contactor as claimed in claim 8, it is characterised in that: the first driving assembly packet
Switching-in spring is included, the switching-in spring is connect with the pivoted frame, and is located at the lower section of the pivoted frame；The second driving assembly packet
Electromagnet and connecting rod are included, the electromagnet is connect by the connecting rod with the pivoted frame；The driving direction of the electromagnet with
The driving direction of the switching-in spring is opposite.
10. a kind of D.C. contactor, including shell, it is characterised in that: further include the contact knot as described in claim 1-9 is any
Structure, the shell have two pieces of third mounting plates being oppositely arranged, have between two pieces of third mounting plates and install the touching
The installation section of header structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000439.0U CN209249392U (en) | 2018-11-30 | 2018-11-30 | D.C. contactor and its structure of contact terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000439.0U CN209249392U (en) | 2018-11-30 | 2018-11-30 | D.C. contactor and its structure of contact terminal |
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| CN209249392U true CN209249392U (en) | 2019-08-13 |
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| CN201822000439.0U Active CN209249392U (en) | 2018-11-30 | 2018-11-30 | D.C. contactor and its structure of contact terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285732A (en) * | 2018-11-30 | 2019-01-29 | 武汉长海电气科技开发有限公司 | D.C. contactor and its structure of contact terminal |
-
2018
- 2018-11-30 CN CN201822000439.0U patent/CN209249392U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285732A (en) * | 2018-11-30 | 2019-01-29 | 武汉长海电气科技开发有限公司 | D.C. contactor and its structure of contact terminal |
| CN109285732B (en) * | 2018-11-30 | 2024-02-13 | 武汉长海电气科技开发有限公司 | DC contactor and contact structure thereof |
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