CN209029322U - Contact connecting device - Google Patents
Contact connecting device Download PDFInfo
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- CN209029322U CN209029322U CN201821521505.2U CN201821521505U CN209029322U CN 209029322 U CN209029322 U CN 209029322U CN 201821521505 U CN201821521505 U CN 201821521505U CN 209029322 U CN209029322 U CN 209029322U
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- Prior art keywords
- tension spring
- spring shaft
- perforation
- contact
- shell
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Abstract
The utility model discloses a kind of contact connecting devices, including joint cover, fixed plate, shell, moving contact, tension spring, the first tension spring shaft, the second tension spring shaft and connection pin shaft, two fixed plates are fixedly linked by fixed pin, there are two conductive otic placodes, two conductive otic placodes extend between two fixed plates on joint cover；Fixed plate edge is equipped with locking card slot and arc gap groove, first tension spring shaft is fastened in locking card slot, second tension spring shaft is limited in arc gap groove, U-shaped card slot and the second tension spring shaft are clamped, the second tension spring shaft moves in the second card slot when moving contact rotates, and opposite end is respectively provided with the first detent and the second detent in arc gap groove.The contact connecting device during installing and using when route occur short circuit when, moving contact is lifted using electrodynamic repulsion force caused by short circuit current and be maintained at out away from position, improve the breaking capacity of breaker.
Description
Technical field
The utility model relates to a kind of contact connecting devices, belong to breaker structure design field.
Background technique
The contact system of breaker can connect under the drive of operating mechanism or disjunction circuit, while also setting in breaker
There is buckle releaser, when overload or short circuit occur for circuit, buckle releaser can drive operating mechanism to separate dynamic and static contact, cutting electricity
Protection is played the role of on road.However the protective effect of buckle releaser is limited, and because of the movement relative delay of buckle releaser, tripping
After device movement, also by a series of mechanical transfer process separate just can dynamic and static contact, for king-sized failure electricity
For stream, this reaction speed not can guarantee circuit safety.Directly made using electrodynamic repulsion force caused by fault current
Dynamic and static contact separation, can achieve the purpose of fast cut-off circuit, this technology is in existing breaker contact system
It is applied.After moving contact is denounceed out, if operating mechanism has enough time acting not yet, moving contact may touch again
It is fallen after rise under the action of head spring, form closure with static contact again or generates electric arc between dynamic and static contact, and then cause to break
The breaking capacity of road device is poor.
Utility model content
In this regard, the utility model is intended to provide a kind of structurally reasonable contact connecting device, which is pacifying
In dress use process when short circuit occurs for route, moving contact is lifted and is maintained at using electrodynamic repulsion force caused by short circuit current
Open away from position, improve the breaking capacity of breaker.
Realizing the technical solution of the utility model aim is:
A kind of contact connecting device, including joint cover, fixed plate, shell, moving contact, tension spring, the first tension spring shaft, the second drawing
Spring axis and connection pin shaft, are spaced in the shell and are oppositely arranged two fixed plates and be fixedly linked by fixed pin, in fixed plate
Center is equipped with the first perforation, and housing side position corresponding with first perforation is equipped with the second perforation；It is described
There are the conductive otic placodes of two be oppositely arranged in knot tying, two conductive otic placodes extend between two fixed plates, and on two conductive otic placodes with institute
The first perforation face position is stated to perforate equipped with third；The moving contact has the first end and second end that is oppositely arranged, and described the
One end is equipped with contact, and the second end is equipped with the 4th perforation and U-shaped card slot, the conductive otic placodes of second end insertion described two it
Between, and the 4th perforation and the first perforation, the second perforation and third perforation are aligned and wear connection pin shaft；In fixed plate and its
Inside accordingly clamps between conductive otic placode and is equipped with elastic washer, and the elastic washer is set on the connection pin shaft, in fixation
The edge of plate is equipped with locking card slot and arc gap groove, first tension spring shaft are fastened in the locking card slot, and described second draws
Spring axis is limited in the arc gap groove, and the both ends of the tension spring are hooked on first tension spring shaft and the second tension spring shaft respectively
On, the U-shaped card slot and second tension spring shaft are clamped, when the moving contact opposing fixed plate rotates described in the second tension spring shaft exist
It is moved in the arc gap groove, opposite end is respectively provided be suitable for cooperating with second tension spring shaft the in the arc gap groove
One detent and the second detent.
In above-mentioned technical proposal, the quantity of the tension spring is two, is located on the outside of two fixed plates, in the shell
Portion.
It is free to rotate on second tension spring shaft to be arranged with sleeve, the sleeve and the arc in above-mentioned technical proposal
The cell wall of shape short slot contacts.
In above-mentioned technical proposal, the shell is made of left shell and right shell body docking, is had on the shell perforative
For wearing the axis hole of contact connecting shaft.
It further include run-on tab in above-mentioned technical proposal, the run-on tab includes socket part and arc baffle portion, the socket part
It is socketed on the moving contact, the arc baffle portion is connected in described socket part one end, tilts down setting.
In above-mentioned technical proposal, it is equipped with chuck on the inside of the socket part, has and the card on the side wall of the moving contact
The card slot of platform cooperation.
The utility model has the effect of positive: structurally reasonable, contact of the contact connecting device in the utility model
Attachment device during installing and using when route occur short circuit when, it is using repulsion caused by short circuit current that moving contact is upward
It lifts and passes through tension spring and keep it in and drive away from position, to improve the breaking capacity of breaker.
Detailed description of the invention
Fig. 1 is the side view of contact connecting device (removing left shell) in the utility model；
Fig. 2 is the top view of contact connecting device in the utility model；
Fig. 3 is the explosive view of contact connecting device in the utility model；
Fig. 4 is the explosive view of component in rectangular broken line frame in Fig. 3.
Appended drawing reference as shown in the figure are as follows: 1- joint cover；11- conduction otic placode；The perforation of 12- third；2- fixed plate；21- first
Perforation；22- locks card slot；23- arc gap groove；The first detent of 231-；The second detent of 232-；3- shell；31- second perforates；32-
Left shell；33- right shell body；34- axis hole；4- moving contact；41- the 4th perforates；42-U shape card slot；5- tension spring；The first tension spring shaft of 6-；
The second tension spring shaft of 7-；71- sleeve；8- connection pin shaft；9- elastic washer；10- run-on tab；The socket part 101-；102- arc baffle portion；
103- card slot；01- fixed pin.
Specific embodiment
The specific structure in the utility model is done to illustrate with reference to the accompanying drawings of the specification:
A kind of contact connecting device, as shown in Figures 1 to 4 comprising joint cover 1, fixed plate 2, shell 3, moving contact 4,
Tension spring 5, the first tension spring shaft 6, the second tension spring shaft 7 and connection pin shaft 8, are spaced in the shell 3 and are oppositely arranged two fixed plates 2
It is fixedly linked by fixed pin 01, center is equipped with the first perforation 21,3 side of shell and described first in fixed plate 2
21 corresponding positions perforate equipped with the second perforation 31；There is the conductive otic placode 11 of two be oppositely arranged, two is conductive on the joint cover 1
Otic placode 11 extends between two fixed plates 2, and perforates with the first 21 face positions of perforation equipped with third on two conductive otic placodes 11
12；The moving contact 4 has the first end and second end being oppositely arranged, and the first end is equipped with contact, and the second end is equipped with
4th perforation 41 and U-shaped card slot 42, between the conductive otic placodes 11 of the second end insertion described two, and the 4th perforation 41 and the
One the 21, second perforation 31 of perforation and third perforation 12 are aligned and wear connection pin shaft 8；It is corresponding on the inside of it conductive in fixed plate 2
It is clamped between otic placode 11 and is equipped with elastic washer 9, the elastic washer 9 is set on the connection pin shaft 8, and elastic washer 9 is deposited
Providing elastic acting force for the conductive otic placode conductive otic placode side and the second end side surface of moving contact are capable of forming closely
Contact guarantees reliability of electrical connection, is equipped with locking card slot 22 and arc gap groove 23, first tension spring at the edge of fixed plate 2
Axis 6 is fastened in the locking card slot 22, and second tension spring shaft 7 is limited in the arc gap groove 23, the tension spring 5
Both ends are hooked on respectively on first tension spring shaft 6 and the second tension spring shaft 7, and the U-shaped card slot 42 is blocked with second tension spring shaft 7
Connect, 4 opposing fixed plate of moving contact rotate when described in the second tension spring shaft 7 moved in the arc gap groove, the arc lack
Opposite end is respectively provided with the first detent 231 and the second detent 232 for being suitable for cooperating with second tension spring shaft 7 in slot 23.Touching
Head attachment device is short under "on" position when there is short circuit current generation when installing and using using the structure in the utility model
Repulsion caused by the electric current of road is applied in the first end of moving contact, and moving contact is relative to fixed plate 2 around described 8 turns of connection pin shaft
It is dynamic, it is lifted up moving contact first end, correspondingly, 4 second end of moving contact moves downward, while driving second tension spring shaft
7 in the arc gap groove 23 movement be moved at the second detent 232 by the first detent 231, and in the pulling force of the tension spring
Effect lower moving contact, which is maintained at, to be driveed away from position, is avoided moving contact from dropping down and is contacted with static contact, at this time moving contact and static contact
Between have apparent gap, improve the breaking capacity of breaker of plastic casing, breaker is in "on" position, but moving contact at this time
In open position；When such as controlling breaker open operation, control circuit breaker operation mechanism (handle) separating brake movement, and connected by contact
Spindle drives fixed plate to rotate around the connection pin shaft 8, while moving contact is limited not by breaker upper limit structure with fixation
Plate rotation, fixed plate are rotated relative to moving contact, and the second tension spring shaft 7 occurs to relatively move and again with first in arc gap groove
Clamping matching, moving contact is kept in this position, so that breaker be made to be in gate-dividing state under the action of the tension spring；Work as control
When breaker closing, circuit breaker operation mechanism (handle) feed motion is controlled, and fixed plate is driven by contact connecting shaft and is moved
Contact is rotated around the connection pin shaft 8, until the movable contact and static contact upper static contact on moving contact realize open circuit when contacting
Device closes a floodgate.
In the present embodiment, the quantity of the tension spring 5 is two, is located on the outside of two fixed plate 2, inside the shell 3,
The elastic pulling force of setting tension spring 5 offer in this way is more stable.
Further, free to rotate on second tension spring shaft 7 to be arranged with sleeve 71, the sleeve 71 is lacked with the arc
The cell wall of slot 23 contacts, using the above structure the sleeve when second tension spring shaft 7 moves in the arc gap groove 23
71 with the cell wall of the arc gap groove 23 be to be in rolling contact, and frictional resistance is smaller.
In the present embodiment, the shell 3 is made of left shell 32 and the docking of right shell body 33, and such setting is conducive to assemble,
Contact connecting shaft is threaded through when installing and using for wearing the axis hole 34 of contact connecting shaft with perforative on the shell 3
In axis hole, in separating brake, operating mechanism, which acts and passes through contact connecting shaft, drives 4 separating brake of moving contact.
It further include run-on tab 10 in the present embodiment, the run-on tab 10 includes socket part 101 and arc baffle portion 102, described
Socket part 101 is socketed on the moving contact 4, and the arc baffle portion 102 is connected in described 101 one end of socket part, is tilted down
Setting；It is equipped with chuck on the inside of the socket part 101, there is the clamping groove cooperated with the chuck on the side wall of the moving contact 4
103, cooperated in assembly by chuck and the clamping groove 103 and the run-on tab 10 is fixed on moving contact 4, arc baffle
Setting can be to avoid the random channelling of electric arc.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within it is practical
Novel protection scope.
Claims (6)
1. a kind of contact connecting device, which is characterized in that including joint cover (1), fixed plate (2), shell (3), moving contact (4),
Tension spring (5), the first tension spring shaft (6), the second tension spring shaft (7) and connection pin shaft (8), are spaced in the shell (3) and set relatively
It sets two fixed plates (2) to be fixedly linked by fixed pin (01), center is equipped with the first perforation (21) in fixed plate (2), described
Shell (3) side position corresponding with first perforation (21) is equipped with the second perforation (31)；There is phase on the joint cover (1)
To the two of setting conductive otic placodes (11), two conductive otic placodes (11) are extended between two fixed plates (2), and on two conductive otic placodes (11) with
First perforation (21) face position is equipped with third perforation (12)；The moving contact (4) have the first end that is oppositely arranged and
Second end, the first end are equipped with contact, and the second end is equipped with the 4th perforation (41) and U-shaped card slot (42), the second end
It is inserted between described two conductive otic placodes (11), and the 4th perforation (41) and the first perforation (21), second perforates (31) and the
Three perforation (12) are aligned and wear connection pin shaft (8)；It clamps and sets between fixed plate (2) conductive otic placode (11) corresponding to its inside
Flexible washer (9), the elastic washer (9) are set on the connection pin shaft (8), are equipped with lock at the edge of fixed plate (2)
Determine card slot (22) and arc gap groove (23), first tension spring shaft (6) is fastened in the locking card slot (22), and described second draws
Spring axis (7) is limited in the arc gap groove (23), and the both ends of the tension spring (5) are hooked on first tension spring shaft respectively
(6) and on the second tension spring shaft (7), the U-shaped card slot (42) and second tension spring shaft (7) are clamped, and the moving contact (4) is opposite
Second tension spring shaft (7) described in when fixed plate rotates moves in the arc gap groove, the interior opposite end of the arc gap groove (23)
It is respectively provided with the first detent (231) and the second detent (232) for being suitable for cooperating with second tension spring shaft (7).
2. contact connecting device according to claim 1, which is characterized in that the quantity of the tension spring (5) is two, respectively
On the outside of two fixed plates (2), the shell (3) is internal.
3. contact connecting device according to claim 1, which is characterized in that can freely turn on second tension spring shaft (7)
Dynamic to be arranged with sleeve (71), the sleeve (71) contacts with the cell wall of the arc gap groove (23).
4. contact connecting device according to claim 1, which is characterized in that the shell (3) is by left shell (32) and the right side
Shell (33) docking is constituted, with perforative for wearing the axis hole of contact connecting shaft on the shell (3).
5. contact connecting device according to claim 1, which is characterized in that further include run-on tab (10), the run-on tab
It (10) include socket part (101) and arc baffle portion (102), the socket part (101) is socketed on the moving contact (4), described
Arc baffle portion (102) is connected in the socket part (101) one end, tilts down setting.
6. contact connecting device according to claim 5, which is characterized in that chuck is equipped on the inside of the socket part (101),
There is the clamping groove (103) cooperated with the chuck on the side wall of the moving contact (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821521505.2U CN209029322U (en) | 2018-09-18 | 2018-09-18 | Contact connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821521505.2U CN209029322U (en) | 2018-09-18 | 2018-09-18 | Contact connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209029322U true CN209029322U (en) | 2019-06-25 |
Family
ID=66877890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821521505.2U Active CN209029322U (en) | 2018-09-18 | 2018-09-18 | Contact connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209029322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206889A1 (en) * | 2021-04-01 | 2022-10-06 | 上海正泰智能科技有限公司 | Moving contact mechanism |
-
2018
- 2018-09-18 CN CN201821521505.2U patent/CN209029322U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206889A1 (en) * | 2021-04-01 | 2022-10-06 | 上海正泰智能科技有限公司 | Moving contact mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |