CN205069400U - Direct current load switch structure of contact terminal - Google Patents
Direct current load switch structure of contact terminal Download PDFInfo
- Publication number
- CN205069400U CN205069400U CN201520801042.5U CN201520801042U CN205069400U CN 205069400 U CN205069400 U CN 205069400U CN 201520801042 U CN201520801042 U CN 201520801042U CN 205069400 U CN205069400 U CN 205069400U
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- contact
- moving contact
- busbar
- support
- load switch
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Abstract
The utility model discloses a direct current load switch structure of contact terminal, including moving contact subtotal static contact part, moving contact part including installing at female lower female row and revolving rack on arranging the support down, the revolving rack rear portion is connected with the connecting rod, the connecting rod be connected with operating device, be connected with the moving contact subassembly on the revolving rack, moving contact subassembly and revolving rack between be provided with main contact spring, static contact part femalely arrange and install the support on last mother row last female going up on arranging the support including installing, go up and to be provided with quiet main contact on female the arranging, the support on install the quiet arc contact, support and quiet arc contact between install arc contact spring, the utility model has the advantages of contact resistance is low, the little short -circuit making capacity of combined floodgate spring is strong, the electric life long, the convenience is maintained in the installation.
Description
Technical field
The utility model belongs to style direct current switch electric technical field, is specifically related to a kind of DC load switch contact structure.
Background technology
At present, in domestic various DC power-supply system demand a kind of simple and reliable relative to DC circuit breaker, larger short circuit current, DC load switch that disjunction rated current ability is strong can be closed, this just requires the requirements such as its structure of contact terminal demand fulfillment contact resistance is low, closing rebound is little, electric life is long, convenient for installation and maintenance.
And existing DC circuit breaker structure of contact terminal on market, mostly be one pole clapper-type structure, and contact without minor arc two-stage point.This structure of contact terminal Chang Yinwei contact resistance is too high, closing rebound is comparatively large, contact does not have the shortcomings such as self-cleaning function, switch is in use occurred problems such as temperature rise is too high, contact melting welding, life-span are short.
Utility model content
In order to overcome the shortcoming and defect of prior art, the utility model provides the DC load switch contact structure that a kind of contact resistance is low, closing rebound is little, electric life is long, convenient for installation and maintenance.
The utility model solves the technical scheme that its technical problem adopts: a kind of DC load switch contact structure, comprise moving contact part and fixed contact part, described moving contact part comprises and is arranged on lower busbar on lower busbar bearing and pivoted frame, pivoted frame rear portion is connected with connecting rod, described connecting rod is connected with operating mechanism, pivoted frame is connected with moving contact component, main contact spring is provided with between described moving contact component and pivoted frame, described fixed contact part comprises the upper busbar be arranged on busbar bearing and the support be arranged on busbar, described upper busbar is provided with quiet main contact, described support is provided with static arc contact, arcing contact spring is installed between described support and static arc contact.
Described a kind of DC load switch contact structure, the moving contact plate that its moving contact component is superimposed by multi-disc forms with the rotating shaft running through described moving contact plate, described moving contact component is arranged on pivoted frame by rotating shaft, all be welded with between every a slice moving contact plate and lower busbar and be flexible coupling and main contact spring, the upper right side of every a slice moving contact plate is provided with main contact sheet, and the part moving contact plate upper end being arranged on centre position is provided with arcing contact sheet.
Described a kind of DC load switch contact structure, its static arc contact is rack-mount by bearing pin.
Described a kind of DC load switch contact structure, its turret shaft is connected on lower busbar bearing.
Described a kind of DC load switch contact structure, its quiet main contact is welded on the left end of busbar.
Described a kind of DC load switch contact structure, the position of its static arc contact under auto state higher than quiet main contact.
The beneficial effects of the utility model are:
1, moving contact component is installed by multi-disc moving contact plate side by side form through rotating shaft, independent being flexible coupling is had to be weldingly connected between every sheet moving contact plate and lower busbar, achieve multiconductor contact, add contact area and the area of dissipation of contact, reduce contact resistance, effectively can also reduce the closing rebound of contact assembly simultaneously.
2, the rotating shaft on moving contact component is through pivoted frame, between every sheet moving contact plate and pivoted frame, main contact spring is all housed, larger contact pressure can be provided, overcome the electrodynamic repulsion force that short circuit current produces, make phase mutual friction between dynamic/static contact in making process simultaneously, there is self-cleaning effect.
3, static arc contact is by hinge on support, and arcing contact spring is housed between static arc contact and support, provides suitable initial pressure to static arc contact, reduces closing rebound.
4, quiet main contact and support are all directly fixedly connected on busbar, and the position of static arc contact is higher than quiet main contact, constitute static arc contact and first close the action sequence divided afterwards, avoid the scaling loss of quiet main contact, and static arc contact is easily changed.
5, a part of moving contact plate in the centre of moving contact component is welded with main contact sheet and the arcing contact sheet of different silver alloy simultaneously, makes moving contact also be divided into minor arc two-stage contact, and simple and compact for structure, reliability is high, and contact breaking capacity is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gate-dividing state;
Fig. 2 is the contact state schematic diagram that the utility model closes a floodgate when just contacting;
Fig. 3 is the structural representation of the utility model moving contact component;
Fig. 4 is the overall structure schematic diagram that the utility model is applied on DC load switch.
Each Reference numeral is: 1-lower busbar, 2-lower busbar bearing, 3-pivoted frame, 4-connecting rod, 5-main contact spring, 6-moving contact component, 6.1-rotating shaft, 6.2-arcing contact sheet, 6.3-main contact sheet, 6.4-moving contact plate, 6.5-be flexible coupling, 7-bearing pin, 8-static arc contact, 9-support, 10-arcing contact spring, 11-quiet main contact, 12-upper busbar, 13-upper busbar bearing, 14-operating mechanism, 15-blowout coil, 16-arc control device, 17-framework.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Shown in Fig. 3, the utility model discloses a kind of DC load switch contact structure, comprise moving contact part and fixed contact part, described moving contact part comprises and is arranged on lower busbar 1 on lower busbar bearing 2 and pivoted frame 3, pivoted frame 3 is coupling on lower busbar bearing 2, pivoted frame 3 freely can turn an angle around lower busbar bearing 2, pivoted frame 3 rear portion is connected with connecting rod 4, described connecting rod 4 is connected with operating mechanism 14, pivoted frame 3 upper right side is connected with moving contact component 6, main contact spring 5 is provided with between described moving contact component 6 and pivoted frame 3, described fixed contact part comprises the upper busbar 12 be arranged on busbar bearing 13 and the support 9 be arranged on busbar 12, described upper busbar 12 is provided with quiet main contact 11, quiet main contact 11 is directly welded on the left end of busbar 12, the left end of described support 9 is movably installed with static arc contact 8, static arc contact 8 is arranged on support 9 by bearing pin 7, between described support 9 and static arc contact 8, arcing contact spring 10 is installed, under auto state, the position of static arc contact 8 is higher than quiet main contact 11, constitute arcing contact and first close the action sequence divided afterwards.
The moving contact plate 6.4 that described moving contact component 6 is superimposed by multi-disc forms with the rotating shaft 6.1 running through described moving contact plate 6.4, described moving contact component 6 is arranged on pivoted frame 3 by rotating shaft 6.1, rotating shaft 6.1 is through pivoted frame 3, be flexible coupling 6.5 and main contact spring 5 is all welded with between every a slice moving contact plate 6.4 and lower busbar 1, the upper right side of every a slice moving contact plate 6.4 is provided with main contact sheet 6.3, moving contact plate 6.4 can 6.1 turn an angle around the shaft, compress main contact spring 5 simultaneously, part moving contact plate 6.4 upper end being arranged on centre position is provided with arcing contact sheet 6.2, described main contact sheet 6.3 and arcing contact sheet 6.2 are all welded on moving contact plate 6.4, owing to part moving contact plate 6.4 being welded with main contact sheet 6.3 and the arcing contact sheet 6.2 of different silver alloy simultaneously, moving contact is made to be divided into minor arc two-stage contact.
The utility model is mainly used on DC load switch, as shown in Figure 4, its lower busbar bearing 2 and upper busbar bearing 13 are fixedly mounted on switch framework 17, and the connecting rod 4 on pivoted frame 3 is connected with the operating mechanism 14 of switch, and blowout coil 15 and arc control device 16 are also housed above contact.When switch closes a floodgate, operating mechanism 14 promotes pivoted frame 3 by connecting rod 4 and rotates, pivoted frame 3 drives moving contact component 6 to close a floodgate, after arcing contact sheet 6.2 contacts with static arc contact 8, arc of folding touch spring 10 is until main contact sheet 6.3 contacts with quiet main contact 11, and pivoted frame 3 is rotated further compression main contact spring 5 and completes combined floodgate after certain excess of stroke; Switch separating brake sequence of movement is contrary with combined floodgate.The utility model achieve main contact be not with carry deciliter, arcing contact be easy to change, the mode of multi-disc moving contact parallel connection not only increases current-carrying and the breaking capacity of contact, also improves the reliability of switch.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only; and the embodiment that part is used; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (6)
1. a DC load switch contact structure, it is characterized in that: comprise moving contact part and fixed contact part, described moving contact part comprises and is arranged on lower busbar (1) on lower busbar bearing (2) and pivoted frame (3), pivoted frame (3) rear portion is connected with connecting rod (4), described connecting rod (4) is connected with operating mechanism (14), pivoted frame (3) is connected with moving contact component (6), main contact spring (5) is provided with between described moving contact component (6) and pivoted frame (3), described fixed contact part comprises the upper busbar (12) be arranged on busbar bearing (13) and the support (9) be arranged on busbar (12), described upper busbar (12) is provided with quiet main contact (11), described support (9) is provided with static arc contact (8), between described support (9) and static arc contact (8), arcing contact spring (10) is installed.
2. a kind of DC load switch contact structure according to claim 1, it is characterized in that, the moving contact plate (6.4) that described moving contact component (6) is superimposed by multi-disc and the rotating shaft (6.1) running through described moving contact plate (6.4) form, described moving contact component (6) is arranged on pivoted frame (3) by rotating shaft (6.1), all be welded with between every a slice moving contact plate (6.4) and lower busbar (1) and be flexible coupling (6.5) and main contact spring (5), the upper right side of every a slice moving contact plate (6.4) is provided with main contact sheet (6.3), part moving contact plate (6.4) upper end being arranged on centre position is provided with arcing contact sheet (6.2).
3. a kind of DC load switch contact structure according to claim 1 and 2, is characterized in that, described static arc contact (8) is arranged on support (9) by bearing pin (7).
4. a kind of DC load switch contact structure according to claim 3, is characterized in that, described pivoted frame (3) is coupling on lower busbar bearing (2).
5. a kind of DC load switch contact structure according to claim 4, is characterized in that, described quiet main contact (11) is welded on the left end of busbar (12).
6. a kind of DC load switch contact structure according to claim 5, is characterized in that, the position of described static arc contact (8) under auto state higher than quiet main contact (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801042.5U CN205069400U (en) | 2015-10-13 | 2015-10-13 | Direct current load switch structure of contact terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801042.5U CN205069400U (en) | 2015-10-13 | 2015-10-13 | Direct current load switch structure of contact terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069400U true CN205069400U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520801042.5U Active CN205069400U (en) | 2015-10-13 | 2015-10-13 | Direct current load switch structure of contact terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205069400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749354A (en) * | 2017-11-21 | 2018-03-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Switch contact structure with automatic cleaning function |
| 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 |
-
2015
- 2015-10-13 CN CN201520801042.5U patent/CN205069400U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749354A (en) * | 2017-11-21 | 2018-03-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Switch contact structure with automatic cleaning function |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |