CN208284446U - Striking and race arc structure - Google Patents
Striking and race arc structure Download PDFInfo
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- CN208284446U CN208284446U CN201820484428.1U CN201820484428U CN208284446U CN 208284446 U CN208284446 U CN 208284446U CN 201820484428 U CN201820484428 U CN 201820484428U CN 208284446 U CN208284446 U CN 208284446U
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Abstract
The utility model relates to Low Voltage Electrical Apparatus, more particularly to a kind of striking and run arc structure, it includes the road Jing Paohu being connected with static contact, the road Dong Paohu, top crown and bottom crown with moving contact cooperation, top crown and bottom crown are arranged in parallel and spacing is d, the road Jing Paohu is arranged between top crown and bottom crown and is oppositely arranged with the road Dong Paohu, and the road Jing Paohu includes the road the Jing Paohu curved portion for being convex to the road Dong Paohu and being connected with static contact；The moving contact is at its most large opening, draw tangent line from the end of moving contact to the road Jing Paohu curved portion, tangent line and the road Jing Paohu curved portion are tangential on point of contact b, the end of moving contact and the spacing of point of contact b are r, make circle C0 by the center of circle of point of contact b and by radius of r, circle C0 and the road Dong Paohu intersect at point e, and the vertical range of point e and bottom crown is d1, d1≤d/4；The utility model realizes quickly jumping for electric arc, and electric arc is avoided to generate serious ablation to arc-chutes.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, and in particular to a kind of striking and run arc structure.
Background technique
In existing device for switching, such as miniature circuit breaker product, usually contact disjunction, extinguish electric arc by way of carry out reality
The disjunction of existing fault current, the arc extinguishing process of miniature circuit breaker mainly includes following several stages: contact, which is opened, generates electric arc, electricity
Arc elongation jumps, runs arc, arcing and blow-out in arc-chutes, wherein electric arc jumps and run arc process to entire fault current
Disjunction is most important.
Existing striking and race arc structure, during disjunction fault current, jumping for electric arc is more difficult, to short circuit current
Current limiting capacity it is insufficient, to keep the energy of the electric arc in breaking course higher, serious ablation easily is generated to arc-chutes.
Summary of the invention
The purpose of the utility model is to overcome the defect of the prior art, a kind of striking is provided and runs arc structure, is realized
Quickly jumping for electric arc, avoids electric arc from generating serious ablation to arc-chutes.
To achieve the above object, the utility model adopts the technical scheme that
A kind of striking and run arc structure comprising the road Jing Paohu 5 that is connected with static contact 1, the dynamic race with the cooperation of moving contact 2
Arc road 3, the top crown 6 cooperated with the road Jing Paohu 5 and the bottom crown 4 cooperated with the road Dong Paohu 3, top crown 6 and bottom crown 4 are flat
Row setting and spacing are d, and the road Jing Paohu 5 is arranged between top crown 6 and bottom crown 4 and is oppositely arranged with the road Dong Paohu 3, quiet race
Arc road 5 includes the road the Jing Paohu curved portion 51 for being convex to the road Dong Paohu 3 and being connected with static contact 1；
The moving contact 2 draws tangent line at its most large opening, from the end of moving contact 2 to the road Jing Paohu curved portion 51, cuts
Line and the road Jing Paohu curved portion 51 are tangential on point of contact b, and the end of moving contact 2 and the spacing of point of contact b are r, using point of contact b as the center of circle and
Make circle C0 by radius of r, circle C0 and the road Dong Paohu 3 intersect at point e, and the vertical range of point e and bottom crown 4 is d1, d1≤d/4.
Preferably, described 2 one end of moving contact is pivotally mounted, and movable contact, the setting of 1 one end of static contact and dynamic touching is arranged in the other end
The stationary contact of point cooperation, the rotation of moving contact 2 drive movable contact to circumferentially rotate, make movable contact and stationary contact closure/disconnection；
One end equipped with stationary contact of the static contact 1 is connected with the road Jing Paohu curved portion 51, and moving contact 2 is opened to maximum
When opening away from place, 3 upper end of the road Dong Paohu is located at below the end of moving contact 2 and cooperates corresponding thereto, lower end and 4 bending phase of bottom crown
Even.
Preferably, the road Jing Paohu 5 includes the road Jing Paohu straight portion 50 and the road Jing Paohu curved portion 51, the road Jing Paohu arc
51 one end of shape portion is connected with static contact 1, and the other end is connected with the road Jing Paohu straight portion 50, the free end in the road Jing Paohu straight portion 50
Extend to the direction of top crown 6.
Preferably, the road Dong Paohu 3 is fold-line-shaped structure, including the road Dong Paohu vertical portion 31 and the road Dong Paohu rake
32, Dong Paohu road rake, 32 one end is connected with the road Dong Paohu vertical portion 31, and the other end is connected with bottom crown 4, and the road Dong Paohu is perpendicular
The free end in straight portion 31 and the end of moving contact 2 cooperate；
Alternatively, the road Dong Paohu 3 is arcuate structure, the end cooperation of the upper end and moving contact 2, lower end and bottom crown 4
It is connected.
Preferably, further include conductive plate 30 that one end is connected with the road Dong Paohu 3, the road Dong Paohu 3 and conductive plate 30 integral into
Inverted V-shaped structure, 30 other end of conductive plate are connected with bimetal leaf.
Preferably, the static contact 1 includes stationary plate 10 and the stationary contact 11 that 10 lower end of stationary plate is arranged in, and stationary plate 10 is at it
Character form structure, including the first vertical plate, the first connecting plate being connected with the first vertical plate obtuse angle and with the first connecting plate obtuse angle
The first connected contact board, the first vertical plate are arranged in parallel with the first contact board, and the first contact board is equipped with stationary contact；
The moving contact 2 includes that contact is supported, the dynamic touching bridge being connected is supported with contact and dynamic touching bridge lower end is arranged in
Movable contact when moving contact 2 is opened to most large opening greatly, moves touching bridge end and 3 upper end corresponding matching of the road Dong Paohu.
Preferably, the road Jing Paohu 5 and the road Dong Paohu 3 cooperatively form a tubaeform arc channel, arc channel
Arrival end and moving contact 2, static contact 1 cooperate, and the outlet end of arc channel and arc-chutes 8 cooperate, and arc-chutes 8 are arranged in top crown
Between 6 and bottom crown 4.
Preferably, the arc-chutes 8 include two arc-chutes supporting plates being oppositely arranged, and are equipped between two arc-chutes supporting plates
The spaced arc extinguishing grid pieces of multi-disc.
Preferably, the electromagnetic release mechanism that 6 side of the top crown setting cooperates with moving contact 1, electromagnetic release mechanism packet
Include the yoke 9 of U-shaped.
The striking and race arc structure of the utility model, top crown and bottom crown are arranged in parallel and spacing is d, moving contact position
At its most large opening, draw tangent line from moving contact end to the road Jing Paohu curved portion, tangent line is tangential on the road Jing Paohu curved portion
Point b makees circle C0 by the center of circle of point b using the spacing r of moving contact end and point b as radius, and circle C0 and the road Dong Paohu intersect at point e,
The vertical range of point e and bottom crown is d1, d1≤d/4, is conducive to significantly improve the speed that electric arc jumps, is lifted arc voltage,
Effective current limliting is formed, arc energy is reduced, avoids arc-chutes by serious ablation.
Detailed description of the invention
Fig. 1 is the utility model striking and the structural schematic diagram for running arc structure；
Fig. 2 is the positional diagram of each section of the utility model striking and race arc structure；
Fig. 3 is the utility model striking and runs in arc structure, and the schematic diagram of electric arc is generated after dynamic/static contact separation；
Fig. 4 is the utility model electric arc in striking and runs the schematic diagram moved in arc structure.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1-4 is provided, further illustrates the striking of the utility model and run the tool of arc structure
Body embodiment.The striking of the utility model and race arc structure are not limited to the following description.
The utility model striking and race arc structure comprising the road Jing Paohu 5 and moving contact 2 being connected with static contact 1 cooperate
The road Dong Paohu 3, with the road Jing Paohu 5 cooperate top crown 6 and with the road Dong Paohu 3 cooperate bottom crown 4, top crown 6 and under
Pole plate 4 is arranged in parallel and spacing is d, and the road Jing Paohu 5 is arranged between top crown 6 and bottom crown 4 and sets relatively with the road Dong Paohu 3
It sets, the road Jing Paohu 5 includes the road the Jing Paohu curved portion 51 for being convex to the road Dong Paohu 3 and being connected with static contact 1；
The moving contact 2 is opened to its most large opening, is drawn from the end of moving contact 2 to the road Jing Paohu curved portion 51 and is cut
Line, tangent line and the road Jing Paohu curved portion 51 are tangential on point b, and it is circle with point of contact b that the end of moving contact 2 and the spacing of point of contact b, which are r,
The heart and making circle C0 by radius of r, circle C0 and the road Dong Paohu 3 intersect at point e, and the vertical range of point e and bottom crown 4 is d1, d1≤
d/4。
In existing device for switching, such as miniature circuit breaker product, usually contact disjunction, extinguish electric arc by way of carry out reality
The disjunction of existing fault current, the arc extinguishing process of miniature circuit breaker mainly includes following several stages: moving contact opening generation electric arc,
Electric arc elongation jumps, runs arc, arcing and blow-out in arc-chutes, wherein electric arc jumps and run arc process to the whole of fault current
A breaking course is most important.
The striking of the utility model is arranged in parallel with race arc structure, top crown and bottom crown and spacing is d, and moving contact is beaten
It opens to its most large opening, draws tangent line from moving contact end to the road Jing Paohu curved portion, tangent line and the road Jing Paohu curved portion are tangent
In point b, using the spacing r of moving contact end and point b as radius, make circle C0 by the center of circle of point b, circle C0 and the road Dong Paohu intersect at a little
The vertical range of e, point e and bottom crown is d1, d1≤d/4, is conducive to significantly improve the speed that electric arc jumps, lifting electric arc electricity
Pressure forms effective current limliting, reduces arc energy, avoids arc-chutes by the serious ablation of electric arc.
It is picture 1-4 one embodiment of the utility model striking and race arc structure.
As illustrated in fig. 1 and 2, the striking of the utility model and run arc structure, including be connected with static contact 1 the road Jing Paohu 5,
The road Dong Paohu 3 cooperated with moving contact 2, the top crown 6 cooperated with the road Jing Paohu 5 and the bottom crown cooperated with the road Dong Paohu 3
4。
The top crown 6 and bottom crown 4 are arranged in parallel and the spacing of the two is d, the setting of 6 side of top crown and moving contact 2
The electromagnetic release mechanism of cooperation, the road Jing Paohu 5, static contact 1 one end equipped with stationary contact be arranged at top crown 6 and bottom crown
Between 4,5 one end of the road Jing Paohu is connected with 1 lower end of static contact, and the other end extends to upper left side bending and to the direction of top crown 6,
3 lower end of the road Dong Paohu is connected with bottom crown 4, and the end of upper end and moving contact 2 cooperates.
The road Jing Paohu 5 and the road Dong Paohu 3 cooperatively form a tubaeform arc channel, and the width of arrival end is small
Width in its outlet end, arrival end and static contact 1, the moving contact 2 of arc channel cooperate, and outlet end and arc-chutes 8 cooperate.
When the moving contact 2 is opened to its most large opening, from end (quiet race of the point a) to the road Jing Paohu 5 of moving contact 2
Arc road curved portion 51 draws tangent line, and the spacing that tangent line and the road Jing Paohu curved portion 51 are tangential on point b, point a and point b is r, is with point b
The center of circle and make circle C0 by radius of r, circle C0 and the road Dong Paohu 3 intersect at point e, and the vertical range of point e and bottom crown 4 is d1, d1
≤d/4。
As shown in figure 3, electromagnetic release mechanism drives moving contact 1 to open when flowing through fault current in the dynamic/static contact
(or bimetal leaf driving moving contact open), static contact 2 and the separation of moving contact 1 generate electric arc, electric arc with moving contact 2 opening
It is constantly elongated, quiet arc root is made to move to point b (new quiet arc root) along the road Jing Paohu, move arc root (i.e. a point in Fig. 3) with moving contact
Opening it is mobile to the road Dong Paohu 3, due to generating big energy in dynamic/static contact separation process, electric arc expands rapidly, and
High temperature air plasma is pushed under the action of electromagnetic force and aerodynamic force to move/static contact lower section, by dynamic/static contact lower zone
It is heated rapidly to gas ionization temperature, as shown in figure 4, dynamic arc root is moved rapidly along the road Dong Paohu 3 and formed on the road Dong Paohu 3
Newly dynamic arc root, newly the forming position on the road Dong Paohu 3 of dynamic arc root follows nearby principle, i.e., newly dynamic arc root is formed in dynamic race arc
On road 3 with new quiet arc root distance from nearest point (i.e. c point in Fig. 4), the spacing of the spacing < point b and point a of point b and point c, because
This is conducive to dynamic arc root and is moved to point c by point a.When being opened due to moving contact 2 to its most large opening, by the end of moving contact 2
Point a draws tangent line to the road the Jing Paohu curved portion 51 in the road Jing Paohu 5, and tangent line and the road Jing Paohu curved portion 51 are tangential on point b, point a with
Spacing between point b is r, makees circle C0 by the center of circle of point b and by radius of r, and circle 3 phase of the road C0 and Dong Paohu gives point e, point e and
The vertical range of bottom crown 4 is d1, d1≤d/4.Many experiments show when point a, point b, point e, d, d1 meet above-mentioned relation,
Electric arc jumps faster, and improve electric arc jumps speed, forms effective current limliting, reduces new arc energy, avoids electric arc to going out
Arc chamber causes serious ablation.
Preferably, in the case where structure allows, the value of d1/d is smaller, and the speed that electric arc jumps is faster.
To the utility model striking and arc structure work is run furtherly below with reference to Figure of description and specific embodiment
It is bright.
As shown in Figs 1-4, the static contact 1 includes the stationary contact 11 on stationary plate 10 and setting stationary plate 10, and stationary plate 10 includes
The first connecting plate being connected with top crown 6 and the first contact board being connected with the first connecting plate obtuse angle are set in the first contact board
There is stationary contact, the first contact board is arranged between top crown 6 and bottom crown 4.The moving contact 2 includes that contact is supported, is mounted on
The dynamic touching bridge and the stationary contact that dynamic touching bridge lower end cooperates with stationary contact is arranged in that contact is supported, contact supports upper end to pivot peace
Dress, the rotation of moving contact 2 drive movable contact circumferential movement, make movable contact and stationary contact closure/disconnection.
As shown in Figs 1-4, the road Jing Paohu 5 is barb-type structure, including the road Jing Paohu straight portion 50 and the road Jing Paohu
Curved portion 51,51 one end of the road Jing Paohu curved portion are connected with the first contact board lower end of stationary plate 10, and the other end and the road Jing Paohu are straight
Shape portion 51 is connected, and integral into V-shaped structure, the road Jing Paohu straight portion 50 is rolled over to upper left side for the road Shi Jingpaohu 5 and the first contact board
It is curved, and its free end extends to top crown 6 and there are gaps between top crown 6.
As shown in Figs 1-4, the top crown 6 includes top crown flat part 60 and is connected with top crown flat part 60 upper
Pole plate interconnecting piece 61, top crown interconnecting piece 61 are L-shaped structure, and one end is connected with top crown flat part 60, the other end and stationary plate
10 the first connecting plate is connected, the bending part of the L-shaped structure of top crown interconnecting piece 60 protrusion upwards.
As shown in Figs 1-4, the road Dong Paohu 3 is fold-line-shaped structure comprising the road Dong Paohu cooperated with moving contact 2 is perpendicular
Straight portion 31 and the road Dong Paohu rake 32,32 right end of the road Dong Paohu rake are connected with the road Dong Paohu vertical portion 31, left end and
Bottom crown 4 is connected.
Preferably, the road Dong Paohu 3 is arcuate structure, and the dynamic touching bridge lower end of the upper end and moving contact 2 cooperates, lower end with
Bottom crown 4 is connected.
Preferably, as shown in Figs 1-4, the utility model striking further includes being connected with 3 upper end of the road Dong Paohu with race arc structure
Conductive plate 30, conductive plate 30 and the road Dong Paohu 3 are integral into inverted 30 upper end of V-shaped structural conductive plate and 30 phase of the road Dong Paohu
Even, lower end is connected with bimetal leaf, and bimetal leaf and moving contact 2 cooperate.
Preferably, the arc-chutes 8 include two pieces of arc-chutes supporting plates being oppositely arranged, and are arranged between two pieces of arc-chutes supporting plates
The spaced arc extinguishing grid pieces of muti-piece.
Direction as shown in Figure 1, the electromagnetic release mechanism setting are used cooperatively in 6 rear side of top crown with moving contact 2, electromagnetism
Tripping mechanism includes the yoke 9 of the U-shaped structure of opening upwards.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (9)
1. a kind of striking and race arc structure, it is characterised in that: it includes the road Jing Paohu (5) being connected with static contact (1) and dynamic touching
Head (2) cooperation road Dong Paohu (3), with the road Jing Paohu (5) cooperation top crown (6) and with the road Dong Paohu (3) cooperation under
Pole plate (4), top crown (6) and bottom crown (4) be arranged in parallel and spacing be d, the road Jing Paohu (5) setting top crown (6) and under
It is oppositely arranged between pole plate (4) and with the road Dong Paohu (3), the road Jing Paohu (5) include being convex to the road Dong Paohu (3) and and static contact
(1) the connected road Jing Paohu curved portion (51)；
The moving contact (2) draws tangent line at its most large opening, from the end of moving contact (2) to the road Jing Paohu curved portion (51),
Tangent line and the road Jing Paohu curved portion (51) are tangential on point of contact b, and the end of moving contact (2) and the spacing of point of contact b are r, are with point of contact b
The center of circle and using r as radius make circle C0, circle C0 and the road Dong Paohu (3) intersect at point e, point e and the vertical range of bottom crown (4) are
D1, d1≤d/4.
2. striking according to claim 1 and race arc structure, it is characterised in that:
Described moving contact (2) one end is pivotally mounted, and movable contact is arranged in the other end, and the setting of static contact (1) one end cooperates with movable contact
Stationary contact, moving contact (2) rotation drive movable contact circumferentially rotate, make movable contact and stationary contact closure/disconnection；
One end equipped with stationary contact of the static contact (1) is connected with the road Jing Paohu curved portion (51), and moving contact (2) is opened to most
When at large opening, the road Dong Paohu (3) upper end is located at below the end of moving contact (2) and cooperates corresponding thereto, lower end and bottom crown (4)
Bending is connected.
3. striking according to claim 1 or 2 and race arc structure, it is characterised in that:
The road Jing Paohu (5) includes the road Jing Paohu straight portion (50) and the road Jing Paohu curved portion (51), the road Jing Paohu curved portion
(51) one end is connected with static contact (1), and the other end is connected with the road Jing Paohu straight portion (50), the road Jing Paohu straight portion (50) from
Extended from end to the direction of top crown (6).
4. striking according to claim 1 or 2 and race arc structure, it is characterised in that:
The road Dong Paohu (3) is fold-line-shaped structure, including the road Dong Paohu vertical portion (31) and the road Dong Paohu rake (32), is moved
The road Pao Hu rake (32) one end is connected with the road Dong Paohu vertical portion (31), and the other end is connected with bottom crown (4), and the road Dong Paohu is perpendicular
The free end in straight portion (31) and the end of moving contact (2) cooperate；
Alternatively, the road Dong Paohu (3) is arcuate structure, the end cooperation of the upper end and moving contact (2), lower end and bottom crown
(4) it is connected.
5. striking according to claim 4 and race arc structure, it is characterised in that:
It further include the conductive plate (30) that one end is connected with the road Dong Paohu (3), the road Dong Paohu (3) and conductive plate (30) are integral into inversion
V-shaped structure, conductive plate (30) other end is connected with bimetal leaf.
6. striking according to claim 2 and race arc structure, it is characterised in that:
The static contact (1) includes stationary plate (10) and setting in the stationary contact (11) of stationary plate (10) lower end, and stationary plate (10) is at it
Character form structure, including the first vertical plate, the first connecting plate being connected with the first vertical plate obtuse angle and with the first connecting plate obtuse angle
The first connected contact board, the first vertical plate are arranged in parallel with the first contact board, and the first contact board is equipped with stationary contact；
The moving contact (2) includes that contact is supported, the dynamic touching bridge being connected is supported with contact and the dynamic of dynamic touching bridge lower end is arranged in
Touching bridge end and the road Dong Paohu (3) upper end corresponding matching when moving contact (2) is opened to most large opening greatly, are moved in contact.
7. striking according to claim 1 and race arc structure, it is characterised in that:
The road Jing Paohu (5) and the road Dong Paohu (3) cooperatively form a tubaeform arc channel, the arrival end of arc channel with
Moving contact (2), static contact (1) cooperation, the outlet end and arc-chutes (8) of arc channel cooperate, and arc-chutes (8) are arranged in top crown
(6) between bottom crown (4).
8. striking according to claim 7 and race arc structure, it is characterised in that:
The arc-chutes (8) include two arc-chutes supporting plates being oppositely arranged, and are equipped with multi-disc interval between two arc-chutes supporting plates
The arc extinguishing grid pieces of setting.
9. striking according to claim 1 and race arc structure, it is characterised in that:
The electromagnetic release mechanism of the setting of top crown (6) side and moving contact (2) cooperation, electromagnetic release mechanism includes U-shaped
Yoke (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820484428.1U CN208284446U (en) | 2018-04-04 | 2018-04-04 | Striking and race arc structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820484428.1U CN208284446U (en) | 2018-04-04 | 2018-04-04 | Striking and race arc structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208284446U true CN208284446U (en) | 2018-12-25 |
Family
ID=64749039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820484428.1U Active CN208284446U (en) | 2018-04-04 | 2018-04-04 | Striking and race arc structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208284446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447749A (en) * | 2018-04-04 | 2018-08-24 | 上海电科电器科技有限公司 | Striking and race arc structure |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
-
2018
- 2018-04-04 CN CN201820484428.1U patent/CN208284446U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447749A (en) * | 2018-04-04 | 2018-08-24 | 上海电科电器科技有限公司 | Striking and race arc structure |
| WO2019192400A1 (en) * | 2018-04-04 | 2019-10-10 | 上海电科电器科技有限公司 | Arc-striking and arc-running structure |
| CN108447749B (en) * | 2018-04-04 | 2023-09-12 | 上海电科电器科技有限公司 | Arc striking and running structure |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
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