CN201226301Y - Conductive connection structure for movable contact and main circuit of locomotive electric hollow contactor - Google Patents
Conductive connection structure for movable contact and main circuit of locomotive electric hollow contactor Download PDFInfo
- Publication number
- CN201226301Y CN201226301Y CNU2008201085505U CN200820108550U CN201226301Y CN 201226301 Y CN201226301 Y CN 201226301Y CN U2008201085505 U CNU2008201085505 U CN U2008201085505U CN 200820108550 U CN200820108550 U CN 200820108550U CN 201226301 Y CN201226301 Y CN 201226301Y
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- moving contact
- main circuit
- mount pad
- connection structure
- bearing
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Abstract
The utility model relates to a conductive connecting structure of the moving contact and the main circuit of a locomotive electro-pneumatic contactor. The conductive connecting structure comprises a bearer and a moving contact installation seat; a connecting hole connected with the bus line of the main circuit is arranged on the bearer, and an arc groove is arranged on one side surface of the bearer; one end of the moving contact installation seat is connected with the moving contact, and the other end forms an arc convex axle matched with the arc groove; the bearer is connected with the moving contact installation seat through a tension spring. By adopting the conductive connecting structure, the mechanical property of the contactor is enhanced, and the motion reliability is high, thereby the current can be ensured to be completely and securely transmitted; the conductive connecting structure also has the advantages of compact and reasonable structure, high reliability and long service life, thereby the service life of the contactor is remarkably prolonged.
Description
Technical field
The utility model relates to a kind of electropneumatic contactor, the conductive connection structure of particularly a kind of locomotive electropneumatic contactor moving contact and main circuit.
Background technology
The locomotive electropneumatic contactor has bigger connecting-disconnecting function, is applied in the main circuit of electric locomotive, carries out the closed and disconnected of contactor by electricity-air-operated, thereby realizes switching on and off of main circuit.And the conductive connection structure of locomotive electropneumatic contactor moving contact and main circuit is one of primary structure of locomotive electropneumatic contactor, be installed in the locomotive electropneumatic contactor, the traditional locomotive electropneumatic contactor moving contact and the conductive attachment of main circuit mainly realize by soft braided wire.
Figure 10 looks schematic diagram for traditional locomotive electropneumatic contactor moving contact and the conductive connection structure master of main circuit; Figure 11 is the schematic top plan view of the conductive connection structure of traditional locomotive electropneumatic contactor moving contact and main circuit.By Figure 10 and Figure 11 as can be seen, moving contact mount pad 2 carries out work together with moving contact 5 around rotating shaft 17, and moving contact mount pad 2 is realized conductive attachment by soft braided wire 18 and bolt 19 with main circuit.Along with the continuous increase of the work number of times of moving contact, also since the useful life of soft braided wire not very very high, thereby influence useful life of contactor.Just for this reason, limit the useful life of electropneumatic contactor, can only reach 1 x 10
6Inferior circulation.
At present, because improving constantly of locomotive running speed, the particularly construction of high-speed electric railway and operation, the task of top priority must be studied the conductive connection structure of a kind of locomotive electropneumatic contactor moving contact and main circuit, to improve the mechanical electric life-span of contactor, improve the overall performance of contactor.
The design people is according to for many years in the accumulation of the experience and knowledge of this area, for overcoming the defective that known technology exists, through arduous research and development, develop long service life of the present utility model finally, the suitable moving contact simple in structure and the conductive connection structure of main circuit.
The utility model content
The purpose of this utility model is: the conductive connection structure of a kind of locomotive electropneumatic contactor moving contact and main circuit is provided, to overcome the defective of prior art, improves the mechanical electric life-span of electropneumatic contactor, reduce the bulk of contactor.
For this reason, the conductive connection structure of a kind of locomotive electropneumatic contactor moving contact of the present utility model and main circuit, wherein, the conductive connection structure of described electropneumatic contactor moving contact and main circuit has a bearing, described bearing is provided with the connecting hole that is connected with the main circuit bus, and a side of bearing is provided with arc groove; A moving contact mount pad, an end of described moving contact mount pad is connected with moving contact, and the other end forms a protruding axle of the circular arc that matches with described arc groove; Be connected by stiff spring between described bearing and the described moving contact mount pad.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit wherein, protrudes out a pin in the arc groove of described bearing; The end face of the protruding axle of the circular arc of described moving contact mount pad is provided with a fluting, the orthogonal axe of the protruding axle of the length direction of described fluting and circular arc, and the width of described fluting matches with described pin external diameter.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, the perpendicular two sides of described bearing and arc groove axis are corresponding to convex with a pair of first bearing pin, described first bearing pin is provided with a ring groove, and be arranged with insulating case on described first bearing pin, and the position that ring groove is set also is provided with ring groove on corresponding first bearing pin on the described insulating case; The perpendicular two sides of described moving contact mount pad and the protruding axis of circular arc are corresponding to convex with a pair of second bearing pin, and described second bearing pin is provided with a ring groove.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, the parallel axes of described first bearing pin and second bearing pin.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, the axis of described second bearing pin is coaxial setting with the axis of the protruding axle of described circular arc.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, the two ends of described stiff spring respectively inlay card at described second bearing pin with have in the groove of first bearing pin of insulating case.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, described mount pad is provided with an elongated slot, and described elongated slot is offered the through slot into the upper and lower surface that connects mount pad; One power transmission shaft is arranged on the described mount pad, and described power transmission shaft runs through described elongated slot at Width, and two ends and described mount pad fix; The parallel axes setting of the axis of described power transmission shaft and described second bearing pin; Described power transmission shaft is connected with drive unit.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, described bearing is a convex shape, is provided with described arc groove in the bottom surface of described bearing; Convex with a pair of first bearing pin corresponding with the two sides of the protuberance of the perpendicular mount pad of described arc groove axis; Be provided with the described connecting hole that is connected described main circuit bus with the two sides of the described protuberance of the orthogonal axe that described first bearing pin is set.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, the protruding crown of roll of described circular arc goes out the upper surface setting of described moving contact mount pad, and the upper surface at described moving contact mount pad is provided with a storage tank near the protruding axle of described circular arc place, described storage tank is parallel to the axis setting of the protruding axle of described circular arc, and the Width of described storage tank away from the protruding axle of described circular arc one side apart from the distance of the axis of the protruding axle of described circular arc greater than the distance of corresponding described bearing one side apart from the arc groove center line.
The conductive connection structure of aforesaid locomotive electropneumatic contactor moving contact and main circuit, wherein, described moving contact mount pad is provided with screwed hole with the end that described moving contact is connected, and described moving contact is fixedlyed connected with this screwed hole.
The conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit compared with prior art has the following advantages and characteristics:
1, the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit, arc groove on its bearing forms arc contact surface with the protruding axle of the circular arc on the moving contact mount pad after cooperating, the moving contact mount pad can be under the effect of drive unit, with the axis of described arc contact surface serves as that axle rotates, and then can make the disconnection of locomotive electropneumatic contactor, closed action reliable.
2, by pin being set at described arc groove middle part, offer a fluting at the protruding axle of circular arc middle part, described pin matches with described fluting, make the described moving contact mount pad can be along the axis play of the protruding axle of described circular arc in when motion, can further improve the coupling reliability of contactor moving contact and main circuit, and guarantee the robust motion of contactor moving contact.This ingenious reasonable structural design, the manufacturing process of this structure is realized easily, also reduced the overall dimension of contactor simultaneously, make its overall structure compact more, when having improved the mechanical electric life-span of electropneumatic contactor, reduced the bulk of contactor.
3, circular arc end face of the present utility model can not only satisfy the axial-movement of moving contact round it, and can satisfy connecting of moving contact and main circuit.Adopt this structure, improved the mechanical performance of contactor, and the motion credibility height, can guarantee that therefore institute's electric current transmitted fully, transfer out safely.
4, the stiff spring of the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit has guaranteed that the arc contact surface of bearing and moving contact mount pad has certain contact force, thereby not only guaranteed that the moving contact mount pad rotated but also can guarantee the conductive attachment of main circuit bus and moving contact mount pad around arc contact surface, because this reliability of structure height, so improved the mechanical electric life-span of contactor, can reach 106 circulations of 2 x, have good and economic.
5, prove by experimental test, adopt the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit, it is reasonable to have a compact conformation, reliability is high and the life-span is grown advantage and characteristics, thus be significantly improved the useful life of contactor.
Description of drawings
Fig. 1 looks schematic diagram for the conductive connection structure master of locomotive electropneumatic contactor moving contact of the present utility model and main circuit;
Fig. 2 is the schematic top plan view of the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit;
Fig. 3 is the cross-sectional schematic along A among Fig. 2-A line;
Fig. 4 looks schematic diagram for the bearing master of the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit;
Fig. 5 looks schematic diagram for the left side of bearing shown in Figure 4;
Fig. 6 looks schematic diagram for the moving contact mount pad master of the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit;
Fig. 7 is the schematic top plan view of moving contact mount pad of the conductive connection structure of locomotive electropneumatic contactor moving contact of the present utility model and main circuit;
Fig. 8 looks schematic diagram for the user mode master of the conductive connection structure of electropneumatic contactor moving contact of the present utility model and main circuit;
Fig. 9 is the user mode schematic top plan view of the conductive connection structure of electropneumatic contactor moving contact of the present utility model and main circuit;
Figure 10 looks schematic diagram for traditional locomotive electropneumatic contactor moving contact and the conductive connection structure master of main circuit;
Figure 11 is the schematic top plan view of the conductive connection structure of traditional locomotive electropneumatic contactor moving contact and main circuit.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.Wherein, identical parts adopt identical label.
At first, see also Fig. 1, Fig. 2 and shown in Figure 3, the master who is respectively the conductive connection structure of the locomotive electropneumatic contactor moving contact that the utility model proposes and main circuit looks schematic diagram, schematic top plan view and cross-sectional schematic.The conductive connection structure of described locomotive electropneumatic contactor moving contact and main circuit has: a bearing 1, described bearing 1 is provided with the connecting hole 15 (as shown in Figure 5) that is connected with main circuit bus 4 (can consult Fig. 8 and Fig. 9 in the lump), and a side of bearing 1 is provided with arc groove 11; A moving contact mount pad 2, an end of described moving contact mount pad 2 is connected with moving contact 5, and the other end forms a protruding axle 21 of the circular arc that matches with described arc groove 11; And stiff spring 3, described stiff spring 3 is in order to connect described bearing 1 and described moving contact mount pad 2.
As Fig. 4, shown in Figure 5, in present embodiment, described bearing 1 is a convex shape, be provided with described arc groove 11 in the bottom surface of described bearing 1, protrude out a pin 12 in the arc groove 11 of described bearing 1, in the present embodiment, preferably described pin 12 is arranged on the middle part of described arc groove 11 longitudinal axis; And on described bearing 1, with corresponding respectively one first bearing pin 13 that convexes with on the perpendicular two sides of arc groove 11 axis.Described first bearing pin 13 is provided with a ring groove (not shown), and is arranged with insulating case 14 on described first bearing pin 13, and on described insulating case 14, the position of ring groove is set on corresponding first bearing pin 13, also is provided with ring groove 141.Be provided with the described connecting hole 15 that is connected described main circuit bus 4 with the side of the protuberance 16 of the described bearing 1 of the orthogonal axe of described first bearing pin 13, for the ease of installing, preferred described connecting hole 15 is a through hole.
See also Fig. 6, Fig. 7, the end face of the protruding axle 21 of the circular arc of described moving contact mount pad 2 is provided with a fluting 22, the orthogonal axe of the protruding axle 21 of the length direction of described fluting 22 and circular arc, and the width of described fluting 22 matches with the external diameter of described pin 12.In the present embodiment, preferably described fluting 22 is arranged on the end face middle part of the protruding axle 21 of described circular arc, described fluting 22, and pin 12, be separately positioned on the end face of the protruding axle 21 of described circular arc and the particular location of described arc groove 11 longitudinal axis and do not limit, as long as can be chimeric mutually between described pin 12 and the fluting 22.On the described moving contact mount pad 2, with perpendicular corresponding respectively one second bearing pin 23 that convexes with in two sides of the protruding axle of circular arc 21 axis, described second bearing pin 23 is provided with a ring groove 231.In order to guarantee this structure stability in the course of the work, the preferably parallel axes setting of described second bearing pin 23 and described first bearing pin 13, and the axis of described second bearing pin 23 is coaxial setting with the axis of the protruding axle 21 of described circular arc.
Upper surface at the mount pad 2 of the protruding axle of described circular arc 21 1 sides is provided with an elongated slot 27, for ease of processing with install, preferably described elongated slot 27 is offered the through slot into the upper and lower surface that connects mount pad 2.The two ends of one power transmission shaft that is connected with drive unit 26 and described mount pad 2 fix, and run through described elongated slot 27.The parallel axes setting of the axis of described power transmission shaft 26 and described second bearing pin 23.
In addition, the structure of described power transmission shaft 26 is not limited to this, as, can be oppositely arranged a pair of described power transmission shaft 26 at the dual-side of described mount pad 2, described power transmission shaft 26 can be convexly equipped with respectively with perpendicular described moving contact mount pad 2 two sides of the axis of described second bearing pin 23 on.
Be provided with screwed hole 25 in the protruding axle of described moving contact mount pad 2 and described circular arc 21 relative the other end, described moving contact 5 be connected with described moving contact mount pad 2 by this screwed hole 25.
In present embodiment, the upper surface setting that the protruding axle 21 of described circular arc protrudes described moving contact mount pad 2, and the upper surface at described moving contact mount pad 2 is provided with a storage tank 24 near the protruding axle of described circular arc 21 places, preferred described storage tank 24 is parallel to the axis setting of the protruding axle 21 of described circular arc, and described storage tank 24 Widths away from the protruding axle of described circular arc 21 1 sides apart from the distance H of the axis of the protruding axle 21 of described circular arc greater than the distance L of corresponding described bearing 1 one sides apart from arc groove 11 center lines, so that described moving contact mount pad 2 is in swing process, can have certain space, do not produce and interfere, to reduce the overall volume of contactor with described bearing 1.
Described stiff spring 3 is an extension spring, and its two ends have the collar that can be set on described first, second bearing pin.
As Fig. 8 and shown in Figure 9, this structure is when assembling, and bearing 1 is connected with main circuit bus 4 by the connecting hole 15 that is provided with on it.The protruding axle 21 of the circular arc of described moving contact mount pad 2 is embedded in the arc groove 11 of described bearing 1, and the pin 12 that is arranged on described arc groove 11 middle parts is arranged in the fluting 22 at the protruding axle of described circular arc 21 middle parts, so that bearing 1 can not guarantee the robust motion of described contactor moving contact along the axis play of arc groove 11 when motion.In addition with the two ends of described stiff spring 3 respectively inlay card and described moving contact 5 is fixed on the described moving contact mount pad 2 by described screwed hole 25 at the ring groove 231 of described second bearing pin 23 be set in the ring groove 141 of insulating case 14 on described first bearing pin 13.Described power transmission shaft 26 is connected with the drive unit of contactor, and like this, described moving contact mount pad 2 just can be under the drive of drive unit is that rotating shaft is swung with the protruding axle 21 of circular arc.
Thus, described moving contact mount pad 2 will drive described moving contact 5 upper and lower motions under the effect of drive unit, realizes the closed and disconnected action of locomotive electropneumatic contactor.
In the motion process of moving contact 5, under the effect of stiff spring 3, can make to remain reliable conduction contact between described bearing 1 and the moving contact mount pad 2, and contact force is constant.
In addition, be arranged on the position that is provided with of pin 12 in the arc groove 11 of described bearing 1, be not limited to the position shown in Fig. 4,5,, play not producing axial relative play between restriction bearing 1 and the mount pad 2 and get final product as long as can match with the fluting 22 of the protruding axle of the circular arc of mount pad 2 21.
In the present embodiment, can offer half annular slotted at arc groove 11 middle parts of described bearing 1, and correspondence is provided with a pin at the middle part of the protruding axle 21 of the circular arc of described mount pad 2, utilizes cooperating of described semi-circular fluting and described pin to realize that fluting cooperates the function that is realized with pin in the execution mode 1.In the present embodiment, do not limit the position that is provided with of described pin, identical with embodiment 1, as long as the fluting 22 of the protruding axle 21 of described pin and the circular arc of mount pad 2 matches, play and limit that not produce axial relative play between bearing 1 and the mount pad 2 just passable.
Other structures, operation principle and the beneficial effect of present embodiment is identical with execution mode 1, does not repeat them here.
This execution mode only is the preferable specific embodiment of the utility model, and structural feature of the present utility model is not limited thereto, and any those of ordinary skill in the art's suitable variation or modification all should be considered as not breaking away from patent category of the present utility model.
Claims (10)
1, the conductive connection structure of a kind of locomotive electropneumatic contactor moving contact and main circuit, it is characterized in that: the conductive connection structure of described electropneumatic contactor moving contact and main circuit has a bearing, described bearing is provided with the connecting hole that is connected with the main circuit bus, and a side of bearing is provided with arc groove; A moving contact mount pad, an end of described moving contact mount pad is connected with moving contact, and the other end forms a protruding axle of the circular arc that matches with described arc groove; Be connected by stiff spring between described bearing and the described moving contact mount pad.
2, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 1 and main circuit is characterized in that: protrude out a pin in the arc groove of described bearing; The end face of the protruding axle of the circular arc of described moving contact mount pad is provided with a fluting, the orthogonal axe of the protruding axle of the length direction of described fluting and circular arc, and the width of described fluting matches with described pin external diameter.
3, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 1 or 2 and main circuit, it is characterized in that: the perpendicular two sides of described bearing and arc groove axis are corresponding to convex with a pair of first bearing pin, described first bearing pin is provided with a ring groove, and be arranged with insulating case on described first bearing pin, and the position that ring groove is set also is provided with ring groove on corresponding first bearing pin on the described insulating case; The perpendicular two sides of described moving contact mount pad and the protruding axis of circular arc are corresponding to convex with a pair of second bearing pin, and described second bearing pin is provided with a ring groove.
4, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 3 and main circuit is characterized in that: the parallel axes of described first bearing pin and second bearing pin.
5, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 4 and main circuit is characterized in that: the axis of described second bearing pin is coaxial setting with the axis of the protruding axle of described circular arc.
6, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 3 and main circuit is characterized in that: the two ends of described stiff spring respectively inlay card at described second bearing pin with have in the groove of first bearing pin of insulating case.
7, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 3 and main circuit, it is characterized in that: described mount pad is provided with an elongated slot, and described elongated slot is offered the through slot into the upper and lower surface that connects mount pad; One power transmission shaft is arranged on the described mount pad, and described power transmission shaft runs through described elongated slot at Width, and two ends and described mount pad fix; The parallel axes setting of the axis of described power transmission shaft and described second bearing pin; Described power transmission shaft is connected with drive unit.
8, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 1 and main circuit, it is characterized in that: described bearing is a convex shape, is provided with described arc groove in the bottom surface of described bearing; Convex with a pair of first bearing pin corresponding with the two sides of the protuberance of the perpendicular mount pad of described arc groove axis; Be provided with the described connecting hole that is connected described main circuit bus with the two sides of the described protuberance of the orthogonal axe that described first bearing pin is set.
9, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 1 and main circuit, it is characterized in that: the protruding crown of roll of described circular arc goes out the upper surface setting of described moving contact mount pad, and the upper surface at described moving contact mount pad is provided with a storage tank near the protruding axle of described circular arc place, described storage tank is parallel to the axis setting of the protruding axle of described circular arc, and the Width of described storage tank away from the protruding axle of described circular arc one side apart from the distance of the axis of the protruding axle of described circular arc greater than the distance of corresponding described bearing one side apart from the arc groove center line.
10, the conductive connection structure of locomotive electropneumatic contactor moving contact as claimed in claim 1 and main circuit is characterized in that: described moving contact mount pad is provided with screwed hole with the end that described moving contact is connected, and described moving contact is fixedlyed connected with this screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201085505U CN201226301Y (en) | 2008-06-13 | 2008-06-13 | Conductive connection structure for movable contact and main circuit of locomotive electric hollow contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201085505U CN201226301Y (en) | 2008-06-13 | 2008-06-13 | Conductive connection structure for movable contact and main circuit of locomotive electric hollow contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226301Y true CN201226301Y (en) | 2009-04-22 |
Family
ID=40599198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201085505U Expired - Lifetime CN201226301Y (en) | 2008-06-13 | 2008-06-13 | Conductive connection structure for movable contact and main circuit of locomotive electric hollow contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201226301Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807094A (en) * | 2017-05-04 | 2018-11-13 | 周思雨 | A kind of miniature circuit breaker |
| CN108807103A (en) * | 2017-05-04 | 2018-11-13 | 周思雨 | A kind of moving contact component and the miniature circuit breaker including the moving contact component |
-
2008
- 2008-06-13 CN CNU2008201085505U patent/CN201226301Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807094A (en) * | 2017-05-04 | 2018-11-13 | 周思雨 | A kind of miniature circuit breaker |
| CN108807103A (en) * | 2017-05-04 | 2018-11-13 | 周思雨 | A kind of moving contact component and the miniature circuit breaker including the moving contact component |
| CN108807103B (en) * | 2017-05-04 | 2024-04-09 | 周思雨 | Moving contact assembly and miniature circuit breaker comprising same |
| CN108807094B (en) * | 2017-05-04 | 2024-05-14 | 周思雨 | Miniature circuit breaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |
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| CX01 | Expiry of patent term |