CN205959900U - Direct current contactor's conversion formula complementary unit - Google Patents
Direct current contactor's conversion formula complementary unit Download PDFInfo
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- CN205959900U CN205959900U CN201620985595.5U CN201620985595U CN205959900U CN 205959900 U CN205959900 U CN 205959900U CN 201620985595 U CN201620985595 U CN 201620985595U CN 205959900 U CN205959900 U CN 205959900U
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Abstract
The utility model discloses a direct current contactor's conversion formula complementary unit, complementary unit have supplementary contact piece and supplementary push rod, and supplementary contact piece is three, are defined as first supplementary contact piece, the supplementary contact piece of second and the supplementary contact piece of third respectively, have the clearance between the supplementary contact piece of first supplementary contact piece and second in order to constitute the normal open circuit, and the supplementary contact piece of third contacts in order to constitute the normal close return circuit with the supplementary contact piece of second, the supplementary contact piece of second can also break away from the back with the supplementary contact piece of third mutually under the drive of supplementary push rod to contact with first supplementary contact piece, this complementary unit can carry out the accuracy to the switch -on of main contacts and off -state and judge, has promoted the stability of direct current contactor working property greatly, especially, no matter which kind of operating condition the main contacts is in, always has a return circuit to be in the on -state among the complementary unit to can judge out with the operating condition of main contacts, promoted the security of direct current contactor working property greatly.
Description
Technical field
This utility model is related to catalyst technical field, specifically provides a kind of change type auxiliary body of D.C. contactor.
Background technology
When the main contacts of D.C. contactor is switched on or switched off, need to judge main touching using being switched on or switched off of auxiliary contact
Dotted state, thus improve product actually used when safety.In actual application, auxiliary contact break-make small current, rises
The on-off action of signal.
Due to the problem sealing and design, in D.C. contactor in the market, usually it is not provided with auxiliary contact,
Also mostly even with auxiliary contact is to adopt microswitch structure, that is, in the transmission core bar for driving active exposure piece action
Connect a plastic sheet, plastic sheet stirs cut-offfing of microswitch while up and down motion with transmission core bar, by microswitch
It is switched on or switched off to connect signal, realize the judgement to main contacts state.But this kind of structure is little because of the stroke of microswitch, hold
Easily cause the main contacts state phenomenon inconsistent with auxiliary contact state, thus affecting contactor function.
In view of this, special proposition this utility model.
Content of the invention
In order to overcome drawbacks described above, this utility model provides a kind of change type auxiliary body of D.C. contactor, can
The state that switches on and off of main contacts is accurately judged, is greatly improved stability and the peace of D.C. contactor service behaviour
Quan Xing.
This utility model be employed technical scheme comprise that to solve its technical problem：A kind of change type of D.C. contactor
Auxiliary body, D.C. contactor includes one in order to judge the auxiliary body of main contacts state, and described auxiliary body has auxiliary
Contact chip and auxiliary push-rod, described auxiliary contacts piece is three, is respectively defined as the first auxiliary contacts piece, the second auxiliary contacts piece
With the 3rd auxiliary contacts piece, wherein, between described first auxiliary contacts piece and described second auxiliary contacts piece, there is gap with structure
Become normal open circuit, described 3rd auxiliary contacts piece is contacted with described second auxiliary contacts piece to constitute normally closed loop；And it is described
After second auxiliary contacts piece can also be separated with described 3rd auxiliary contacts piece under the drive of described auxiliary push-rod, and with institute
State the first auxiliary contacts piece to contact.
As further improvement of the utility model, described first auxiliary contacts piece, the second auxiliary contacts piece and the 3rd are auxiliary
The strip sheet-like structure that adjuvant grafting contact is all arranged horizontally, and described first auxiliary contacts piece be positioned described second auxiliary connect
The top of contact, and there is gap to constitute normal open circuit and described second auxiliary contacts piece between, described 3rd auxiliary contacts
Piece is positioned the lower section of described second auxiliary contacts piece, and contacts with described second auxiliary contacts piece to constitute normally closed loop.
As further improvement of the utility model, with described 3rd auxiliary contacts piece and described second auxiliary contacts piece phase
On the basis of the state of contact, between described second auxiliary contacts piece and described auxiliary push-rod, there is gap.
As further improvement of the utility model, respectively in described first auxiliary contacts piece, the second auxiliary contacts piece
The first electrical contact cooperating is provided with length direction one end；
It is provided with length direction one end of described 3rd auxiliary contacts piece and described second auxiliary contacts piece respectively
The second electrical contact cooperating.
As further improvement of the utility model, with described first auxiliary contacts piece and described second auxiliary contacts piece phase
On the basis of the state of contact, it is 20～30 degree that described first auxiliary contacts piece intersects angle with described second auxiliary contacts piece；
On the basis of the state that described 3rd auxiliary contacts piece is contacted with described second auxiliary contacts piece, the described 3rd is auxiliary
Adjuvant grafting contact is intersected angle and is also 20～30 degree with described second auxiliary contacts piece.
As further improvement of the utility model, described first auxiliary contacts piece, the second auxiliary contacts piece and the 3rd
It is respectively connected with lead-out wire on auxiliary contacts piece.
As further improvement of the utility model, this D.C. contactor also includes a protected type contact chamber, described shielding
Formula contact interior is provided with main stationary contact, a movable active exposure piece and a transmission core bar of two fixations, two institutes
State that main stationary contact is parallel and arranged for interval, described active exposure piece is located at the lower section of two described main stationary contacts, and described active
Contact chip main stationary contact described with two can contact simultaneously and disconnect under the drive of described transmission core bar；
In addition offer three clamp bar slots on the top side outer surface of described protected type contact chamber, three clamp bar slots are defined respectively
For the first draw-in groove, the second draw-in groove and the 3rd draw-in groove, wherein said first draw-in groove, length direction one end of the second draw-in groove are connected simultaneously
Constitute V-structure, described second draw-in groove, length direction one end of the 3rd draw-in groove are also connected and constitute V-structure, the described 3rd
Auxiliary contacts piece positioning is arranged in described 3rd draw-in groove, and described second auxiliary contacts piece is movably set in described second draw-in groove
In, and the top positioned at described 3rd auxiliary contacts piece, and described second auxiliary contacts piece is also connect with the described 3rd auxiliary simultaneously
Contact contacts；Described first auxiliary contacts piece positioning is arranged in described first draw-in groove, and is located at described second auxiliary contacts
The top of piece, and described first auxiliary contacts piece also has gap and described second auxiliary contacts piece between simultaneously；Also described
Run through on the top side of protected type contact chamber and offer a through hole, described auxiliary push-rod activity is placed through in described through hole, and can
Under the drive of described transmission core bar, relatively described second auxiliary contacts piece carries out moving back and forth positioning.
As further improvement of the utility model, it is 20～30 that described first draw-in groove intersects angle with described second draw-in groove
Degree, described second draw-in groove is intersected angle and is also 20～30 degree with described 3rd draw-in groove.
The beneficial effects of the utility model are：Auxiliary push-rod second auxiliary contacts piece relatively under the drive of transmission core bar enters
Row moves back and forth, and forms " normally closed loop disconnects, normal open circuit closes " and " normal open circuit disconnection, normally closed circuit closed " two
The state of kind, thus accurately being judged to the state that switches on and off of main contacts (main stationary contact and active exposure piece), carries significantly
Rise the stability of D.C. contactor service behaviour；Particularly, in this utility model, no matter which kind of work shape main contacts is in
State, always has a loop in an ON state in described auxiliary body, even if one of loop goes wrong, another time
The working condition of main contacts also can be judged out by road, thus greatly improving the safety of D.C. contactor service behaviour.
Brief description
Fig. 1 is the perspective view of change type auxiliary body described in the utility model；
Fig. 2 is the side structure schematic view of change type auxiliary body described in the utility model；
Fig. 3 is the overlooking the structure diagram of change type auxiliary body described in the utility model；
Fig. 4 is the cross-sectional view of the D.C. contactor being provided with described change type auxiliary body.
In conjunction with accompanying drawing, make the following instructions：
1 auxiliary contacts piece 11 first auxiliary contacts piece
12 second auxiliary contacts piece 13 the 3rd auxiliary contacts piece
14 first electrical contact 15 second electrical contact
2 auxiliary push-rod 3 protected type contact chamber
4 main stationary contact 5 active exposure pieces
6 transmission core bars
Specific embodiment
Referring to figure, preferred embodiment of the present utility model is described in detail.
Embodiment 1：
D.C. contactor includes a protected type contact chamber 3, and the master that described protected type contact interior is provided with two fixations is quiet
The movable active exposure piece in contact 4,5 and a transmission core bar 6, two described main stationary contacts 4 are parallel and arranged for interval,
Described active exposure piece 5 is located at the lower section of two described main stationary contacts 4, and described active exposure piece 5 can be in described transmission core
Under the drive of bar 6, main stationary contact 4 described with two contacts simultaneously and disconnects；Particularly, also include one in this D.C. contactor
In order to judge the auxiliary body of main contacts state, refering to shown in accompanying drawing 1-3, described auxiliary body has auxiliary contacts piece 1 and auxiliary
Boosting bar 2, described auxiliary contacts piece 1 is three, is respectively defined as the first auxiliary contacts piece 11 (as normally opened contact), second auxiliary
Adjuvant grafting contact 12 (as common port) and the 3rd auxiliary contacts piece 13 (as normally-closed contact), wherein, described first auxiliary contacts
There is gap to constitute normal open circuit between piece 11 and described second auxiliary contacts piece 12, described 3rd auxiliary contacts piece 13 and institute
State the second auxiliary contacts piece 12 to contact to constitute normally closed loop；And described second auxiliary contacts piece 12 can also be in described auxiliary
After being separated with described 3rd auxiliary contacts piece 13 under the drive of push rod 2 (i.e. normally closed loop disconnects), and assist with described first
Contact chip 11 contacts (i.e. normal open circuit closure).
In the present embodiment, described first auxiliary contacts piece 11, the second auxiliary contacts piece 12 and the 3rd auxiliary contacts piece 13
The strip sheet-like structure being all arranged horizontally, and described first auxiliary contacts piece 11 is positioned described second auxiliary contacts piece 12
Top, and there is gap to constitute normal open circuit and described second auxiliary contacts piece 12 between, described 3rd auxiliary contacts piece
13 lower sections being positioned described second auxiliary contacts piece 12, and contact with described second auxiliary contacts piece 12 to constitute normally closed time
Road.This is a kind of arrangement of three auxiliary contacts pieces, but is not limited to this utility model, according to actual product structure
Need, three auxiliary contacts pieces can have multiple arrangements, all in protection domain of the present utility model.
Preferably, the state being contacted with described second auxiliary contacts piece 12 with described 3rd auxiliary contacts piece 13 is as base
Standard, has gap between described second auxiliary contacts piece 12 and described auxiliary push-rod 2 it is therefore an objective to ensure the second auxiliary contacts piece 12
Contact pressure and the 3rd auxiliary contacts piece 13 between.
Preferably, set on described first auxiliary contacts piece 11, length direction one end of the second auxiliary contacts piece 12 respectively
It is equipped with the first electrical contact 14 cooperating；Also respectively in length direction one end of described 3rd auxiliary contacts piece 13 and
The second electrical contact 15 cooperating is provided with described second auxiliary contacts piece 12；I.e. two neighboring auxiliary contacts piece can
The electrical contact used thereon contacts, and by arranging first and second electrical contact, so that carrying current value is improved.
Preferably, the state being contacted with described second auxiliary contacts piece 12 with described first auxiliary contacts piece 11 is as base
Standard, it is 20～30 degree that described first auxiliary contacts piece 11 intersects angle with described second auxiliary contacts piece 12；
On the basis of the state that described 3rd auxiliary contacts piece 13 is contacted with described second auxiliary contacts piece 12, described
Three auxiliary contacts pieces 13 are intersected angle and are also 20～30 degree with described second auxiliary contacts piece 12.
Preferably, on described first auxiliary contacts piece 11, the second auxiliary contacts piece 12 and the 3rd auxiliary contacts piece 13 all
It is connected with lead-out wire.
Additionally, the concrete mounting structure that change type auxiliary body described in the utility model is installed on D.C. contactor is：
Refering to shown in accompanying drawing 4, the top side outer surface of described protected type contact chamber 3 offers three clamp bar slots, by three clamp bar slots respectively
It is defined as the first draw-in groove, the second draw-in groove and the 3rd draw-in groove, wherein said first draw-in groove, length direction one end of the second draw-in groove are connected
Lead to and constitute V-structure, described second draw-in groove, length direction one end of the 3rd draw-in groove are also connected and constitute V-structure, described
3rd auxiliary contacts piece 13 positioning is arranged in described 3rd draw-in groove, and described second auxiliary contacts piece 12 is movably set in described the
In two draw-in groove, and be located at described 3rd auxiliary contacts piece 13 top, and simultaneously described second auxiliary contacts piece 12 also with described
3rd auxiliary contacts piece 13 contacts；Described first auxiliary contacts piece 11 positioning is arranged in described first draw-in groove, and is located at institute
State the top of the second auxiliary contacts piece 12, and simultaneously described first auxiliary contacts piece 11 also with described second auxiliary contacts piece 12 it
Between have gap (not in contact with)；Also run through on the top side of described protected type contact chamber 3 and offer a through hole, described auxiliary push-rod
2 activities are placed through in described through hole, and can enter relatively described second auxiliary contacts piece 12 under the drive of described transmission core bar 6
Row moves back and forth positioning.
Preferably, described first draw-in groove intersects angle with described second draw-in groove is 20～30 degree, described second draw-in groove and institute
State the 3rd draw-in groove and intersect angle also for 20～30 degree.
Compared to prior art, this utility model arranges an auxiliary body in D.C. contactor, and in this auxiliary body
Auxiliary push-rod under the drive of transmission core bar relatively the second auxiliary contacts piece moved back and forth, formed " normally closed loop disconnects,
Normal open circuit closes " and " normal open circuit disconnect, normally closed circuit closed " two states, thus to main contacts (main stationary contact and
Active exposure piece) the state that switches on and off accurately judged, greatly improve the stability of D.C. contactor service behaviour；
Particularly, in this utility model, no matter which kind of working condition main contacts is in, and always has a loop in described auxiliary body
In an ON state, even if one of loop goes wrong, the working condition of main contacts also can be determined by another loop
Come, thus greatly improving the safety of D.C. contactor service behaviour.
The above is only preferred implementation of the present utility model, but is not limited to this utility model it should refer to
Go out, for those skilled in the art, on the premise of without departing from this utility model know-why, acceptable
Make some improvement and modification, these improve and modification also should be regarded as in protection domain of the present utility model.
Claims (8)
1. the change type auxiliary body of a kind of D.C. contactor, D.C. contactor includes one in order to judge the auxiliary of main contacts state
Help mechanism it is characterised in that：Described auxiliary body has auxiliary contacts piece (1) and auxiliary push-rod (2), described auxiliary contacts piece
(1) it is three, be respectively defined as the first auxiliary contacts piece (11), the second auxiliary contacts piece (12) and the 3rd auxiliary contacts piece
(13), wherein, there is gap often to constitute between described first auxiliary contacts piece (11) and described second auxiliary contacts piece (12)
Open loop, described 3rd auxiliary contacts piece (13) is contacted with described second auxiliary contacts piece (12) to constitute normally closed loop；And
Described second auxiliary contacts piece (12) can also under the drive of described auxiliary push-rod (2) with described 3rd auxiliary contacts piece (13)
After being separated, and contact with described first auxiliary contacts piece (11).
2. D.C. contactor according to claim 1 change type auxiliary body it is characterised in that：Described first auxiliary connects
The strip sheet-like structure that contact (11), the second auxiliary contacts piece (12) and the 3rd auxiliary contacts piece (13) are all arranged horizontally,
And described first auxiliary contacts piece (11) is positioned the top of described second auxiliary contacts piece (12), and connect with the described second auxiliary
Contact has gap to constitute normal open circuit between (12), and described 3rd auxiliary contacts piece (13) is positioned described second auxiliary and connects
The lower section of contact (12), and contact with described second auxiliary contacts piece (12) to constitute normally closed loop.
3. D.C. contactor according to claim 1 change type auxiliary body it is characterised in that：With the described 3rd auxiliary
On the basis of the state that contact chip (13) is contacted with described second auxiliary contacts piece (12), described second auxiliary contacts piece (12) with
Between described auxiliary push-rod (2), there is gap.
4. D.C. contactor according to claim 2 change type auxiliary body it is characterised in that：Respectively described first
It is provided with, on auxiliary contacts piece (11), length direction one end of the second auxiliary contacts piece (12), the first electrical contact cooperating
(14)；
Set on length direction one end of described 3rd auxiliary contacts piece (13) and described second auxiliary contacts piece (12) respectively
It is equipped with the second electrical contact (15) cooperating.
5. D.C. contactor according to claim 2 change type auxiliary body it is characterised in that：With the described first auxiliary
On the basis of the state that contact chip (11) is contacted with described second auxiliary contacts piece (12), described first auxiliary contacts piece (11) with
It is 20～30 degree that described second auxiliary contacts piece (12) intersects angle；
On the basis of the state that described 3rd auxiliary contacts piece (13) is contacted with described second auxiliary contacts piece (12), described
Three auxiliary contacts pieces (13) are intersected angle and are also 20～30 degree with described second auxiliary contacts piece (12).
6. D.C. contactor according to claim 2 change type auxiliary body it is characterised in that：Described first auxiliary connects
It is respectively connected with lead-out wire on contact (11), the second auxiliary contacts piece (12) and the 3rd auxiliary contacts piece (13).
7. D.C. contactor according to claim 1 change type auxiliary body it is characterised in that：This D.C. contactor is also
Including a protected type contact chamber (3), described protected type contact interior is provided with the main stationary contact (4) of two fixations, an activity
Active exposure piece (5) and transmission core bar (6), two described main stationary contacts (4) are parallel and arranged for interval, described active
Contact chip (5) is located at the lower section of two described main stationary contacts (4), and described active exposure piece (5) can be in described transmission core bar
(6) under drive, main stationary contact (4) described with two contacts simultaneously and disconnects；
In addition offer three clamp bar slots on the top side outer surface of described protected type contact chamber (3), three clamp bar slots are defined respectively
For the first draw-in groove, the second draw-in groove and the 3rd draw-in groove, wherein said first draw-in groove, length direction one end of the second draw-in groove are connected simultaneously
Constitute V-structure, described second draw-in groove, length direction one end of the 3rd draw-in groove are also connected and constitute V-structure, the described 3rd
Auxiliary contacts piece (13) positioning is arranged in described 3rd draw-in groove, and described second auxiliary contacts piece (12) is movably set in described the
In two draw-in groove, and be located at described 3rd auxiliary contacts piece (13) top, and simultaneously described second auxiliary contacts piece (12) also with
Described 3rd auxiliary contacts piece (13) contacts；Described first auxiliary contacts piece (11) positioning is arranged in described first draw-in groove,
And the top positioned at described second auxiliary contacts piece (12), and described first auxiliary contacts piece (11) is also auxiliary with described second simultaneously
Adjuvant grafting contact has gap between (12)；Also run through on the top side of described protected type contact chamber (3) and offer a through hole, described
Auxiliary push-rod (2) activity is placed through in described through hole, and can be relatively described second auxiliary under the drive of described transmission core bar (6)
Adjuvant grafting contact (12) carries out moving back and forth positioning.
8. D.C. contactor according to claim 7 change type auxiliary body it is characterised in that：Described first draw-in groove with
It is 20～30 degree that described second draw-in groove intersects angle, and it is also 20～30 that described second draw-in groove intersects angle with described 3rd draw-in groove
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985595.5U CN205959900U (en) | 2016-08-30 | 2016-08-30 | Direct current contactor's conversion formula complementary unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985595.5U CN205959900U (en) | 2016-08-30 | 2016-08-30 | Direct current contactor's conversion formula complementary unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205959900U true CN205959900U (en) | 2017-02-15 |
Family
ID=57978435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620985595.5U Active CN205959900U (en) | 2016-08-30 | 2016-08-30 | Direct current contactor's conversion formula complementary unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205959900U (en) |
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2016
- 2016-08-30 CN CN201620985595.5U patent/CN205959900U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |