CN204155886U - Circuit breaker rotary type double-breakpoint structure of contact terminal - Google Patents
Circuit breaker rotary type double-breakpoint structure of contact terminal Download PDFInfo
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- CN204155886U CN204155886U CN201420646650.9U CN201420646650U CN204155886U CN 204155886 U CN204155886 U CN 204155886U CN 201420646650 U CN201420646650 U CN 201420646650U CN 204155886 U CN204155886 U CN 204155886U
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- circuit breaker
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Abstract
The utility model discloses a kind of circuit breaker rotary type double-breakpoint structure of contact terminal, comprises runner, runner has the groove for multipole splicing, and the moving contact of breaker contact system is arranged on runner by movable axis and fixed axis and touch spring; The contact system structure of rotary type double-breakpoint, also comprises one group is arranged on runner strutting piece by fixed axis, and this group strutting piece has crescent rail groove, and movable axis is arranged in the crescent rail groove of strutting piece, and can move along crescent rail groove.The rotary type double-breakpoint contact system structure that the utility model discloses, scold out rapidly under the electrodynamic repulsion force that the moving contact of circuit breaker can be made when there is short circuit current in electric wiring to produce at short circuit current, and block the end of the crescent rail groove of strutting piece, effectively prevent moving contact from falling, improve the current limitation effect of circuit breaker.
Description
Technical field
The utility model relates to breaker technical field, relates to a kind of circuit breaker rotary type double-breakpoint structure of contact terminal.
Background technology
In the development of current low-pressure plastic shell circuit breaker, the product that the version of double breaking points becomes numerous enterprises first develops direction.Its reason is that breaker with double breaks and plastic case has a lot of advantage compared with traditional single-breakpoint molded case circuit breaker, and it is higher that breaker with double breaks and plastic case can cut-off short circuit current, and the break performance particularly under 690V is higher.One of core component of breaker with double breaks and plastic case is exactly contact system.And the good and bad break performance to circuit breaker of the structure of contact system and current limiting capacity have a significant impact.Existing rotary type double-breakpoint contact system structure, the part of employing is more, complex structure.Poor reliability, contact scold open block unreliable.It is complicated that the utility model is to solve said structure, and contact is scolded to open and blocked unreliability, and the simple part of the utility model structure is less easy for installation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of structure simple, ingenious, rational circuit breaker rotary type double-breakpoint structure of contact terminal is provided, this structure of contact terminal can realize breaker of plastic casing under large short circuit current, contact system is scolded out rapidly and is blocked, and prevents contact from falling.Solve present rotary type double-breakpoint contact system structure complicated simultaneously, scold out and block unreliability.
Technical scheme according to the utility model provides: a kind of circuit breaker rotary type double-breakpoint structure of contact terminal, is characterized in that: comprise runner, rotate in described runner and be provided with moving contact, moving contact two ends form end arms respectively; Runner is provided with two fixed axis, fixed axis described in every root is all connected with two pieces of strutting pieces, two pieces of strutting pieces are arranged in the 3rd groove at two ends inside runner respectively, strutting piece on two fixed axis is symmetrically set, and rail groove is offered on strutting piece, be connected by movable axis between rail groove on two pieces of strutting pieces on same fixed axis, on moving contact, be sheathed on corresponding movable axis respectively corresponding to two mounting holes of two end arms roots, between described movable axis, fixed axis, be connected with touch spring.
As further improvement of the utility model, described runner corresponds to two the 3rd groove middle parts and be provided with the 4th groove, runner middle part is provided with through breach, moving contact penetrates in runner from described breach, and moving contact upper end is arranged in the groove of top the 4th, moving contact lower end is arranged in the groove of bottom the 4th, and runner centre of gyration two ends are provided with the second circular hole, runner, by second circular hole at runner two ends, is arranged on circuit breaker operation mechanism by connecting axle.
As further improvement of the utility model, described runner both ends of the surface correspond to the second circular hole both sides and are provided with the first groove, the second groove, and offer the first circular hole on described second groove bottom land flat board.
As further improvement of the utility model, described runner end panels is coaxially offered one group of through hole, fixed axis is connected on described through hole; Holes offered by described runner other end panel, and movable axis, through described holes, is connected in the rail groove on two pieces of strutting pieces.
As further improvement of the utility model, the end arms of described moving contact both sides is towards the opposite.
As further improvement of the utility model, described rail groove end is formed with straight plane, and described straight plane and strutting piece base form A ° of angle, and A is acute angle.
As further improvement of the utility model, described strutting piece is arc-shaped edges, while be baseplane, and the junction of described arc-shaped edges and straight line is arc transition.
The utility model compared with prior art, advantage is: the utility model product is by touch spring and fixed axis, and moving contact is arranged on runner by the cooperation of movable axis, create relative rotary motion at the electrodynamic repulsion force effect lower moving contact of short circuit current and runner.Moving contact is stuck in the crescent rail groove end of strutting piece after turning over an angle under touch spring effect.Achieve contact to scold to open and block.The few structure of the utility model part simply utilizes price manufacture, and it is just convenient to install.
Accompanying drawing explanation
Fig. 1 is the overall cloth structural representation of rotary type double-breakpoint contact system structure in the utility model.
Fig. 2 is rotary type double-breakpoint contact system structure internal structure schematic diagram in the utility model.
Fig. 3,4 is rotary type double-breakpoint contact system structure rotaring wheel structure schematic diagrames in the utility model.
Fig. 5 is rotary type double-breakpoint contact system structure moving contact structure schematic diagram in the utility model.
Fig. 6 is rotary type double-breakpoint contact system structure supporting piece structure schematic diagram in the utility model.
Fig. 7 is that in the utility model, rotary type double-breakpoint contact system moving contact is in combined floodgate initial condition schematic diagram.
Fig. 8 is that in the utility model, rotary type double-breakpoint contact system moving contact is in scold to open and blocks view.
Fig. 9 is that in the utility model, rotary type double-breakpoint contact system moving contact is in drop-away reset view.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Fig. 1 ~ 9, comprise runner 10, first groove 101, second groove 102, the 3rd groove 103, through hole 104, the 4th groove 105, first circular hole 106, second circular hole 107, hole 108, fixed axis 20, strutting piece 30, rail groove 301, hole 302, straight plane 303, baseplane 304, movable axis 40, touch spring 50, moving contact 60, end arms 601, mounting hole 602, technique circular hole 603, fixed contact 70, base 80 etc.
As shown in Fig. 1 ~ 9, a kind of circuit breaker rotary type double-breakpoint of the utility model structure of contact terminal, comprises runner 10, and rotate in described runner 10 and be provided with moving contact 60, moving contact 60 two ends form end arms 601 respectively, runner 10 is provided with two fixed axis 20, fixed axis 20 described in every root is all connected with two pieces of strutting pieces 30, two pieces of strutting pieces 30 are arranged in the 3rd groove 103 at two ends inside runner 10 respectively, strutting piece 30 on two fixed axis 20 is symmetrically set, and rail groove 301 is offered on strutting piece 30, be connected by movable axis 40 between rail groove 301 on two pieces of strutting pieces 30 on same fixed axis 20, on moving contact 60, two mounting holes 602 corresponding to two end arms 601 roots are sheathed on corresponding movable axis 40 respectively, described movable axis 40, touch spring 50 is connected with between fixed axis 20.
Described runner 10 corresponds to two the 3rd groove 103 middle parts and be provided with the 4th groove 105, runner 10 middle part is provided with through breach, moving contact 60 penetrates in runner 10 from described breach, and moving contact 60 upper end is arranged in the groove of top the 4th, moving contact lower end is arranged in the groove of bottom the 4th, runner 10 centre of gyration two ends are provided with the second circular hole 107, and runner 10, by second circular hole 107 at runner 10 two ends, is arranged on circuit breaker operation mechanism by connecting axle.
Described runner 10 both ends of the surface correspond to the second circular hole 107 both sides and are provided with the first groove 101, second groove 102, and offer the first circular hole 106 on described second groove 102 bottom land flat board.
Described runner 10 end panels coaxially offers one group of through hole 104, and fixed axis 20 is connected on described through hole 104; Holes 108 offered by described runner 10 other end panel, and movable axis 40, through described holes 108, is connected in the rail groove 301 on two pieces of strutting pieces 30.
The end arms 601 of described moving contact 60 both sides is towards the opposite.
Described rail groove 301 end is formed with straight plane 303, and described straight plane 303 forms A ° of angle with strutting piece 30 base, and A is acute angle.
Described strutting piece 30, while be arc-shaped edges, is baseplane 304, and the junction of described arc-shaped edges and straight line is arc transition.
As shown in Figure 7, rotary type double-breakpoint contact system moving contact is in initial condition, moving contact 60 contacts with fixed contact 70, now moving contact 60 is crushed in the 4th groove 105 of runner 10 under touch spring 50, fixed axis 20, movable axis 40 acting in conjunction, and touch spring 50 pairs of moving contacts 60 form a pair balance rotating moment.Make moving contact 60 and fixed contact 70 close contact.
As shown in Figure 8, rotary type double-breakpoint contact system moving contact is in scold opens the state of blocking, moving contact 60 in external force as electrodynamic repulsion force F effect rotates clockwise together with movable axis 40 in the crescent rail groove 301 of strutting piece 30, when moving contact 60 turns to the straight plane 303 of the end of the crescent rail groove 301 of strutting piece 30 together with movable axis 40, act on lower moving contact 60 at touch spring 50 and tightly blocked.Achieve moving contact 60 and scold fixed function of unblanking, effectively prevent moving contact 60 from falling.
As shown in Figure 9, rotatable double-breakpoint contact system moving contact is in drop-away reset state, after breaker tripping mechanism is threaded off, drive runner 10 to rotate clockwise, due to the stop effect of the base 80 of circuit breaker, moving contact 60 is relative with base 80 to be forbidden, runner 10 rotates clockwise and drives strutting piece 30 to rotate clockwise drive together, moving contact 60 has departed from the straight plane 303 of strutting piece 30 when touch spring 50 is elongated, get back in the crescent rail groove 301 of strutting piece 30, and finally got back to crescent rail groove 301 initiating terminal, complete the reset of moving contact 60.
By reference to the accompanying drawings concrete description is carried out to embodiment of the present utility model above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those skilled in the art is under enlightenment of the present utility model; do not departing under the ambit that aim of the present utility model and claim protect, also can make a lot of form, these all belong within protection of the present utility model.
Claims (7)
1. a circuit breaker rotary type double-breakpoint structure of contact terminal, is characterized in that: comprise runner (10), and rotate in described runner (10) and be provided with moving contact (60), moving contact (60) two ends form end arms (601) respectively, runner (10) is provided with two fixed axis (20), fixed axis (20) described in every root is all connected with two pieces of strutting pieces (30), two pieces of strutting pieces (30) are arranged in the 3rd groove (103) at two ends, runner (10) inner side respectively, strutting piece (30) on two fixed axis (20) is symmetrically set, and rail groove (301) is offered on strutting piece (30), be connected by movable axis (40) between rail groove (301) on two pieces of strutting pieces (30) on same fixed axis (20), on moving contact (60), two mounting holes (602) corresponding to two end arms (601) roots are sheathed on corresponding movable axis (40) respectively, described movable axis (40), touch spring (50) is connected with between fixed axis (20).
2. circuit breaker rotary type double-breakpoint structure of contact terminal as claimed in claim 1, it is characterized in that: described runner (10) is upper is provided with the 4th groove (105) corresponding to two the 3rd groove (103) middle parts, runner (10) middle part is provided with through breach, moving contact (60) penetrates in runner (10) from described breach, and moving contact (60) upper end is arranged in the groove of top the 4th, moving contact lower end is arranged in the groove of bottom the 4th, runner (10) centre of gyration two ends are provided with the second circular hole (107), connecting axle is by second circular hole (107) at runner (10) two ends, runner (10) is arranged on circuit breaker operation mechanism.
3. circuit breaker rotary type double-breakpoint structure of contact terminal as claimed in claim 1, it is characterized in that: described runner (10) both ends of the surface correspond to the second circular hole (107) both sides and are provided with the first groove (101), the second groove (102), and offer the first circular hole (106) on described second groove (102) bottom land flat board.
4. circuit breaker rotary type double-breakpoint structure of contact terminal as claimed in claim 1, it is characterized in that: described runner (10) end panels is coaxially offered one group of through hole (104), fixed axis (20) is connected on described through hole (104); Described runner (10) other end panel is offered holes (108), movable axis (40), through described holes (108), is connected in the rail groove (301) on two pieces of strutting pieces (30).
5. circuit breaker rotary type double-breakpoint structure of contact terminal as claimed in claim 1, is characterized in that: the end arms (601) of described moving contact (60) both sides is towards the opposite.
6. circuit breaker rotary type double-breakpoint structure of contact terminal as claimed in claim 1, is characterized in that: described rail groove (301) end is formed with straight plane (303), and described straight plane (303) and strutting piece (30) base form A ° of angle, and A is acute angle.
7. circuit breaker rotary type double-breakpoint structure of contact terminal as claimed in claim 1, is characterized in that: described strutting piece (30) is arc-shaped edges, while be baseplane (304), and the junction of described arc-shaped edges and straight line is arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646650.9U CN204155886U (en) | 2014-10-31 | 2014-10-31 | Circuit breaker rotary type double-breakpoint structure of contact terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646650.9U CN204155886U (en) | 2014-10-31 | 2014-10-31 | Circuit breaker rotary type double-breakpoint structure of contact terminal |
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| Publication Number | Publication Date |
|---|---|
| CN204155886U true CN204155886U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420646650.9U Active CN204155886U (en) | 2014-10-31 | 2014-10-31 | Circuit breaker rotary type double-breakpoint structure of contact terminal |
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| CN (1) | CN204155886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319205A (en) * | 2014-10-31 | 2015-01-28 | 博耳(无锡)电力成套有限公司 | Rotation type double-breakpoint contact structure of circuit breaker |
| CN108735557A (en) * | 2018-08-07 | 2018-11-02 | 江苏凯隆电器有限公司 | The reprimand of moving contact of breaker opens locking device and its working method |
-
2014
- 2014-10-31 CN CN201420646650.9U patent/CN204155886U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319205A (en) * | 2014-10-31 | 2015-01-28 | 博耳(无锡)电力成套有限公司 | Rotation type double-breakpoint contact structure of circuit breaker |
| CN108735557A (en) * | 2018-08-07 | 2018-11-02 | 江苏凯隆电器有限公司 | The reprimand of moving contact of breaker opens locking device and its working method |
| CN108735557B (en) * | 2018-08-07 | 2024-03-22 | 江苏凯隆电器有限公司 | Repulsion unlocking device of breaker moving contact and working method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |