CN206516591U - A kind of current-limiting type static contact structure - Google Patents
A kind of current-limiting type static contact structure Download PDFInfo
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- CN206516591U CN206516591U CN201720033641.6U CN201720033641U CN206516591U CN 206516591 U CN206516591 U CN 206516591U CN 201720033641 U CN201720033641 U CN 201720033641U CN 206516591 U CN206516591 U CN 206516591U
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- static contact
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Abstract
A kind of current-limiting type static contact structure, including pedestal and the static contact being fixedly mounted on pedestal, the bottom surface protrusion of the pedestal is provided with the first mounting groove provided with the first installation base or depression, the static contact is provided with the second mounting groove or the second installation base installed with the first installation base or the first mounting groove, the static contact provided with cooperation.Current-limiting type static contact structure of the present utility model, the installation base and mounting groove worked in coordination by being set respectively on pedestal and static contact, on the one hand the connection function of static contact and pedestal is strengthened, it is arranged on pedestal with making static contact more firm stable, on the other hand, position-limiting action is served to static contact, improve the installation effectiveness of static contact, meanwhile, installation base is already present using space in static contact after installing, and improves the space availability ratio in pedestal.
Description
Technical field
The utility model is related to current limiting low-voltage breaker of plastic casing field, more particularly to a kind of current-limiting type static contact structure.
Background technology
Moulded case circuit breaker (hereinafter referred to as breaker) is the electric switch worked automatically, its protect the circuit from by
Damaged caused by overload or short circuit.When short circuit occurs, the moving contact of breaker can denounce before mechanism unlocking motion to be opened, quite
In a resistance of promptly having connected in circuit, the flowing of electric current is prevented as quickly as possible, so that protective breaker downstream electrical
Conductor and electric device in road.
When short circuit occurs, the dynamic/static contact of breaker quick reprimand can be opened before mechanism unblock, be due to electrodynamic repulsion force
Effect.Electrodynamic repulsion force is made up of two parts：When short circuit current flow is by U-shaped static contact loop and movable contact conducting bar, by putting down
Due to the Huo Muli that the contraction of electric current line is produced at the electronic Lorentz force and contact point that column conductor is produced, thus it is U-shaped quiet
Contact is in the breaker of single-break using more universal.The installation inconvenience of existing U-shaped static contact, fixed structure takes breaker
Inner space, and static contact materials are more, while existing static contact is also not provided with strengthening the increasing magnetic structure of electrodynamic repulsion force.
The content of the invention
The purpose of this utility model be the defect for overcoming prior art there is provided a kind of combination property more comprehensively, cost performance
Higher current-limiting type static contact structure.
To achieve the above object, the utility model employs following technical scheme：
A kind of current-limiting type static contact structure, including pedestal 2 and static contact 1 on the base 2, the pedestal 2 is fixedly mounted
Bottom surface protrusion provided with the first installation base 210 or depression be provided with the first mounting groove, the static contact 1 be provided with and first peace
Fill the mounting groove of boss 210 or first and coordinate the second mounting groove 110 or the second installation base installed.
Further, the bottom surface protrusion of the pedestal 2 is provided with the first installation base 210, and static contact 1 is provided with to be installed with first
Boss 210 coordinates the second mounting groove 110 installed；Also include the moving contact 5 being oppositely arranged with static contact 1, static contact 1 is installed
In the side of pedestal 2, moving contact 5 is installed in pedestal 2, positioned at the rear of static contact 1, one end lower surface protrusion of moving contact 5
Provided with movable contact, one end upper surface protrusion of static contact 1 is provided with the stationary contact 1131 being engaged with movable contact.
Further, the static contact 1 is in zigzag, including dislocation be arranged in parallel terminal plate 12, contact part 11, connect
Line plate 12 and the connecting plate 13 of the one end of contact part 11；The pedestal 2 is installed provided with install contact part 11 and connecting plate 13 first
Groove 21, the side of first mounting groove 21 is provided with coordinates the second fitting recess 22 installed with terminal plate 12；Second assembling
The bottom of groove 22 is higher than the bottom of the first mounting groove 21.
Further, the contact part 11 is U-shaped structure, the madial wall formation U-lag 1121 of U-shaped structure, including with first
The mounting base 111 coordinated, the supporting part 113 for being set in parallel in the top of mounting base 111 are installed and connected in the bottom surface of mounting groove 21
Connect the U-bend folded plate 112 of supporting part 113 and the one end of mounting base 111, the width of U-bend folded plate 112 and supporting part 113 is less than
Mounting base 111；Second mounting groove 110 is on mounting base 111, and the protrusion of stationary contact 1131 is located at supporting part 113
Upper surface.
Further, the end extension of the supporting part 113 is provided with fixing end 1134, and fixing end 1134 is provided with contact part
11 the first screwed holes 1132 being fixed in the first mounting groove 21, the first installation base 210 is provided with and the first screwed hole 1132
Coordinate the first installation through-hole 2101 installed；The terminal plate 12, which is provided with, is fixed on terminal plate 12 in second fitting recess 22
Second screwed hole 121, the bottom surface of second fitting recess 22 is provided with coordinates the second installation through-hole installed with the second screwed hole 121
220。
Further, first installation base 210 is that flat column is raised, and the second mounting groove 110 is located at mounting base 111
On square through hole, flat column projection, which is passed through, stretches to the lower section of supporting part 113 after square through hole.
Further, being used in addition in the U-lag 1121 of contact part 11 strengthens self-excitation magnetic field and electrodynamic repulsion force
Increasing magnetic structure 3, increase magnetic structure 3 be located at stationary contact lower section；The magnetic structure 3 that increases includes coordinating what is installed with U-lag 1121
Magnetosheath 31 and the magnetic patch 32 in magnetosheath 31, the interior cavity volume 311 provided with receiving magnetic patch 32 of the magnetosheath 31.
Further, the size of the cavity volume 311 is mutually coincide with magnetic patch 32, and the magnetic patch 32 includes the trapezoidal magnetic patch on top
321 and the rectangle magnetic patch 322 of bottom, cavity volume 311 include with the corresponding ladder cavity of trapezoidal magnetic patch 321 and with rectangle magnetic patch
322 corresponding rectangular cavities.
Further, the surrounding madial wall protrusion of the cavity volume 311 is provided with the installation for being interference fitted cavity volume 311 and magnetic patch 32
Salient point 312.
Further, one end protrusion at the top of the magnetosheath 31 is provided with spacing with the spacing cooperation in side of supporting part 113
Boss 313.
Current-limiting type static contact structure of the present utility model, by setting the peace worked in coordination respectively on pedestal and static contact
Boss and mounting groove are filled, the connection function of static contact and pedestal is on the one hand strengthened, installs with making static contact more firm stable
On pedestal, on the other hand, position-limiting action is served to static contact, the installation effectiveness of static contact is improved, meanwhile, installation base
It is already present using space in static contact after installation, improve the space availability ratio in pedestal.The lower section peace of stationary contact
Dress increases magnetic structure, can strengthen the self-excitation magnetic field of contact area galvanic circle, and can be with humidification on movable contact conducting bar
Electrodynamic repulsion force F, moving contact is quickly denounceed out, to obtain very high arc voltage, play good current limiting effect.Set in magnetosheath
There is the cavity volume for accommodating magnetic patch, magnetic patch loads in magnetosheath from the cavity volume of the side of magnetosheath, and increasing the installation of magnetic structure can be：First by magnetic
Block and magnetosheath are reloaded into U-lag after assembling, and increase the quick and easy for installation of magnetic structure.
Brief description of the drawings
Fig. 1 is the overall structure diagram of current-limiting type static contact structure of the present utility model；
Fig. 2 is the overall structure top view of current-limiting type static contact structure of the present utility model；
Fig. 3 is the structural representation of static contact of the present utility model；
Fig. 4 is base construction schematic diagram of the present utility model；
Fig. 5 is the scheme of installation of increasing magnetic structure and static contact in the utility model；
Fig. 6 is the scheme of installation for increasing magnetic patch and magnetosheath in magnetic structure in the utility model；
Fig. 7 is the structural representation of magnetosheath of the present utility model；
Fig. 8 is the partial structural diagram of magnetosheath of the present utility model；
Fig. 9 is the structural representation of magnetic patch of the present utility model.
Embodiment
The embodiment provided below in conjunction with accompanying drawing 1 to 9, further illustrates current-limiting type static contact structure of the present utility model
Embodiment.Current-limiting type static contact structure of the present utility model is not limited to the following description.
As shown in figs 1-9, a kind of current-limiting type static contact structure of the present utility model, including pedestal 2 and it is fixedly mounted on base
Static contact 1 on seat 2.The bottom surface protrusion of the pedestal 2 is provided with the first installation base 210 or the first mounting groove, the stationary contact
First 1 provided with the second mounting groove 110 or the second installation base for coordinating installation.
Static contact structure of the present utility model, by setting the installation base worked in coordination respectively on pedestal and static contact
And mounting groove, the connection function of static contact and pedestal is on the one hand strengthened, pedestal is arranged on making static contact more firm stable
On, on the other hand, position-limiting action is served to static contact, the installation effectiveness of static contact is improved, meanwhile, after installation base is installed
It is already present using space in static contact, improve the space availability ratio in pedestal.
As shown in figs 1-9, it is a kind of embodiment of the present utility model.The bottom surface protrusion of the pedestal 2 is installed provided with first
Boss 210, static contact 1 is provided with coordinates the second mounting groove 110 installed with the first installation base 210；During installation, first installs
Boss 210 is inserted through the second mounting groove 110, and the first installation base 210 is installed in the second mounting groove 110, will be arranged on
Static contact 1 on pedestal 2 is further fixed.Also include the moving contact 5 being oppositely arranged with static contact 1, static contact 1 is installed on pedestal
2 side, moving contact 5 is installed in pedestal 2, and positioned at the rear of static contact 1, compact conformation, one end lower surface of moving contact 5 is convex
Go out and be provided with movable contact, one end upper surface protrusion of static contact 1 is provided with the stationary contact 1131 being engaged with movable contact.When short-circuit electricity
When stream is by the conducting rod of the supporting part 113 of static contact 1 and moving contact 5, supporting part 113 and conducting rod produce mutually exclusive electricity
Due to the Huo Muli that the contraction of electric current line is produced at dynamic Lorentz force, contact point, electronic Lorentz force and Huo Muli are all
Repulsion is acted on, and the dynamic and static contact of breaker can be made quickly to denounce before mechanism unblock and opened.
As Figure 1-4, the static contact 1 is in zigzag, including the misplace terminal plate 12 be arrangeding in parallel and contact part 11,
With connection terminal plate 12 and the connecting plate 13 of the one end of contact part 11；The pedestal 2 is provided with installing contact part 11 and connecting plate 13
First mounting groove 21, the side of first mounting groove 21 is provided with coordinates the install second assembling with terminal plate 12 and connecting plate 13
Groove 22, the bottom of the second fitting recess 22 is higher than the bottom of the first mounting groove 21, more adapts to the zigzag of static contact 1.During installation,
Contact part 11 and connecting plate 13 are installed in the first mounting groove 21, and terminal plate 12 is installed in the second fitting recess 22, compact conformation.
As shown in Figure 1,3, the contact part 11 be U-shaped structure, U-shaped structure madial wall formation U-lag 1121, including with
The mounting base 111 coordinated is installed, the supporting part 113 of the top of mounting base 111 is set in parallel in the bottom surface of first mounting groove 21
With connection supporting part 113 and the U-bend folded plate 112 of the one end of mounting base 111, the width of U-bend folded plate 112 and supporting part 113
Less than mounting base 111, the structure of contact part 11 is more stablized, and saves material；Second mounting groove 110 is located at mounting base
On 111, the protrusion of stationary contact 1131 is located at the upper surface of supporting part 113.
As shown in Figure 1,3, the end extension of the supporting part 113 is provided with fixing end 1134, and fixing end 1134 is provided with will
The first screwed hole 1132 that contact part 11 is fixed in the first mounting groove 21, the first installation base 210 is provided with and the first screw thread
Hole 1132 coordinates the first installation through-hole 2101 installed；The terminal plate 12 is provided with is fixed on the second fitting recess by terminal plate 12
The second screwed hole 121 in 22, the bottom surface of second fitting recess 22 is provided with coordinates the install second peace with the second screwed hole 121
Fill through hole 220.During installation, the first screwed hole 1132 is vertically aligned with the first installation through-hole about 2101, the first mounting screw from
The bottom of first mounting groove 21 is sequentially inserted into the first installation through-hole 2101, the first screwed hole 1132, by mounting base 111,
Projection 210 is installed and supporting part 113 is secured together, so that contact part 11 is fixed in the first mounting groove 21, makes contact part
11 position is more stable and firm, improves the integrally-built stability of static contact.The one side and second of first installation base 210
Mounting groove 110, which is installed, to be coordinated, on the other hand with the secure fit of fixing end 1134, and one uses, and saves material.
As shown in Figure 3,4, first installation base 210 is that flat column is raised, and the second mounting groove 110 is located at installation bottom
Square through hole on plate 111, flat column projection passes through the lower section that supporting part 113 is stretched to after square through hole, convenient through flat column
The raised fixing screws with square through hole are further penetrated through in the first screwed hole 1132 of supporting part 113, by supporting part 113
Fix, the installation of static contact 1 on the base 2 is more consolidated.It is apparent that first installation base 210 and second is installed
Groove 110 can also be set to the other shapes such as corresponding circular or triangle.
As shown in figure 5, the static contact structure of the present embodiment also includes the increasing magnetic in the U-lag 1121 of contact part 11
Structure 3, increases the lower section that magnetic structure 3 is located at stationary contact, can strengthen the self-excitation magnetic field of contact area galvanic circle, and can strengthen
The electrodynamic repulsion force F acted on movable contact conducting bar 5, makes moving contact quickly denounce out, and to obtain very high arc voltage, plays very
Good current limiting effect.
As Figure 6-9, the magnetic structure 3 that increases includes coordinating the magnetosheath 31 of installation and installed in magnetosheath with U-lag 1121
Provided with the cavity volume 311 for accommodating magnetic patch 32 in magnetic patch 32 in 31, the magnetosheath 31, magnetic patch 32 loads from the cavity volume 311 of magnetosheath 31
In magnetosheath 31, increasing the installation of magnetic structure can be：It is reloaded into after first assembling magnetic patch 32 and magnetosheath 31 in U-lag 1121；Increase
Magnetic structure it is quick and easy for installation.The size of the cavity volume 311 is mutually coincide with magnetic patch 32, and the magnetic patch 32 includes the ladder on top
Shape magnetic patch 321 and the rectangle magnetic patch 322 of bottom, cavity volume 311 include with the corresponding ladder cavity of trapezoidal magnetic patch 321 and with it is rectangular
The corresponding rectangular cavity of shape magnetic patch 322.During installation, trapezoidal magnetic patch 321 is installed in ladder cavity, and rectangle magnetic patch 322 is pacified
It is attached in rectangular cavity, compact conformation is firmly installed.Obviously, cavity volume 311 and magnetic patch 32 can also be set to what is cooperated
Other structures.
As shown in figure 8, the upper side protrusion of the cavity volume 311 can make cavity volume 311 and magnetic patch 32 provided with salient point 312 is installed
Interference fit, magnetic patch 32 is fixed in cavity volume 311, makes magnetic patch 32 be difficult to drop out.The magnetosheath 31 is plastic material.Substantially
Ground, the installation salient point 312 can also be arranged on the either side wall of the surrounding madial wall of cavity volume 311.
As shown in Figure 7,8, one end protrusion at the top of the magnetosheath 31 is provided with and the spacing cooperation in side of supporting part 113
Positive stop lug boss 313.During installation, magnetosheath 31 is limited to fixed bit by the mutual clamping in side of positive stop lug boss 313 and supporting part 113
Put, make increasing magnetic structure 3 and the installation of static contact 1 more stable and firm.
As shown in Fig. 1,7, the side of the magnetosheath 31 is set to the U-shaped convex surface 314 coordinated with U-lag 1121, and opposite side is
The straight flange 315 being engaged with installation base 210, both sides are plane up and down.During installation, the U-shaped convex surface 314 of magnetosheath 31 is installed in U
In shape groove 1121, the straight flange 315 of magnetosheath 31 mutually fits with the side of installation base 210, the upper side and supporting part of magnetosheath 31
113 downside mutually fits, and the downside of magnetosheath 31 mutually fits with the upper side of mounting base 111, increases the whole of magnetic structure 3
Body is installed more stable and firm.The utility model is installed to the inner space of U-shaped static contact by will increase magnetic patch, is improving current limliting
While effect, the space availability ratio of static contact structure is improved.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to protection domain of the present utility model.
Claims (10)
1. a kind of current-limiting type static contact structure, including pedestal (2) and the static contact (1) that is fixedly mounted on pedestal (2), its feature
It is：The bottom surface protrusion of the pedestal (2) is provided with the first mounting groove provided with the first installation base (210) or depression, described quiet
Contact (1), which is provided with, coordinates the second mounting groove (110) for installing or the with the first installation base (210) or the first mounting groove
Two installation bases.
2. current-limiting type static contact structure according to claim 1, it is characterised in that：The bottom surface protrusion of the pedestal (2) is set
There is the first installation base (210), static contact (1) is provided with coordinates the second mounting groove installed with the first installation base (210)
(110)；Also include the moving contact (5) being oppositely arranged with static contact (1), static contact (1) is installed on the side of pedestal (2), moves and touch
Head (5) is installed in pedestal (2), the rear positioned at static contact (1), and one end lower surface protrusion of moving contact (5) is provided with movable contact,
One end upper surface protrusion of static contact (1) is provided with the stationary contact (1131) being engaged with movable contact.
3. current-limiting type static contact structure according to claim 2, it is characterised in that：The static contact (1) is in zigzag, bag
Terminal plate (12) and contact part (11) that dislocation be arranged in parallel are included, and connects the connection of terminal plate (12) and contact part (11) one end
Plate (13)；The pedestal (2) is installed provided with the first mounting groove (21) for installing contact part (11) and connecting plate (13), described first
The side of groove (21) is provided with coordinates the second fitting recess (22) installed with terminal plate (12)；The bottom of second fitting recess (22)
Higher than the bottom of the first mounting groove (21).
4. current-limiting type static contact structure according to claim 3, it is characterised in that：The contact part (11) is U-shaped structure,
The madial wall formation U-lag (1121) of U-shaped structure, including the mounting base coordinated is installed with the bottom surface of the first mounting groove (21)
(111) supporting part (113) and connection supporting part (113) and mounting base, being set in parallel in above mounting base (111)
(111) width of the U-bend folded plate (112) of one end, U-bend folded plate (112) and supporting part (113) is less than mounting base (111)；
Second mounting groove (110) is on mounting base (111), upper table of stationary contact (1131) protrusion located at supporting part (113)
Face.
5. current-limiting type static contact structure according to claim 4, it is characterised in that：Prolong the end of the supporting part (113)
Stretch provided with fixing end (1134), fixing end (1134) is provided with first that contact part (11) is fixed in the first mounting groove (21)
Screwed hole (1132), the first installation base (210) is provided with coordinates the first installation through-hole installed with the first screwed hole (1132)
(2101)；The terminal plate (12) is provided with the second screwed hole that terminal plate (12) is fixed in the second fitting recess (22)
(121), the bottom surface of second fitting recess (22) is provided with coordinates the second installation through-hole installed with the second screwed hole (121)
(220)。
6. current-limiting type static contact structure according to claim 5, it is characterised in that：First installation base (210) is
Flat column is raised, and the second mounting groove (110) is the square through hole on mounting base (111), and flat column projection passes through square
The lower section of supporting part (113) is stretched to after through hole.
7. current-limiting type static contact structure according to claim 4, it is characterised in that：Also include installed in contact part (11)
Being used in U-lag (1121) strengthens the increasing magnetic structure (3) of self-excitation magnetic field and electrodynamic repulsion force, increases magnetic structure (3) and is located at stationary contact
Lower section；The magnetic structure (3) that increases includes coordinating the magnetosheath (31) of installation and in magnetosheath (31) with U-lag (1121)
Provided with the cavity volume (311) for accommodating magnetic patch (32) in magnetic patch (32), the magnetosheath (31).
8. current-limiting type static contact structure according to claim 7, it is characterised in that：The size and magnetic of the cavity volume (311)
Block (32) mutually coincide, and the magnetic patch (32) includes the trapezoidal magnetic patch (321) on top and the rectangle magnetic patch (322) of bottom, holds
Chamber (311) includes ladder cavity corresponding with trapezoidal magnetic patch (321) and rectangular cavity corresponding with rectangle magnetic patch (322).
9. current-limiting type static contact structure according to claim 7, it is characterised in that：On the inside of the surrounding of the cavity volume (311)
Wall protrusion is provided with the installation salient point (312) for being interference fitted cavity volume (311) and magnetic patch (32).
10. current-limiting type static contact structure according to claim 9, it is characterised in that：The one of the top of the magnetosheath (31)
End protrusion is provided with the positive stop lug boss (313) with the spacing cooperation in side of supporting part (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033641.6U CN206516591U (en) | 2017-01-11 | 2017-01-11 | A kind of current-limiting type static contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033641.6U CN206516591U (en) | 2017-01-11 | 2017-01-11 | A kind of current-limiting type static contact structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206516591U true CN206516591U (en) | 2017-09-22 |
Family
ID=59865503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720033641.6U Active CN206516591U (en) | 2017-01-11 | 2017-01-11 | A kind of current-limiting type static contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206516591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799368A (en) * | 2017-11-17 | 2018-03-13 | 河南森源电气股份有限公司 | Breaker of plastic casing structure of contact terminal |
-
2017
- 2017-01-11 CN CN201720033641.6U patent/CN206516591U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799368A (en) * | 2017-11-17 | 2018-03-13 | 河南森源电气股份有限公司 | Breaker of plastic casing structure of contact terminal |
| CN107799368B (en) * | 2017-11-17 | 2020-01-10 | 河南森源电气股份有限公司 | Contact structure of plastic case circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of utility model: A current limiting structure of static contact Granted publication date: 20170922 License type: Common License Record date: 20201021 |
|
| EE01 | Entry into force of recordation of patent licensing contract |