CN204230072U - A kind of contact apparatus of control and protective switching device - Google Patents
A kind of contact apparatus of control and protective switching device Download PDFInfo
- Publication number
- CN204230072U CN204230072U CN201420738827.8U CN201420738827U CN204230072U CN 204230072 U CN204230072 U CN 204230072U CN 201420738827 U CN201420738827 U CN 201420738827U CN 204230072 U CN204230072 U CN 204230072U
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- contact
- spring
- pedestal
- bridge
- touch spring
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Abstract
A contact apparatus for control and protective switching device, belongs to low voltage electrical apparatus technology field.Comprise the pedestal with pedestal chamber, pedestal establishes electrode assemblie in chamber, electrode assemblie comprises two static contact components, the movable bridge-shaped contact coordinated with two static contact components, movable bridge-shaped contact comprises contact support, bridge shape contact and the touch spring be resisted against on bridge shape contact, feature: described movable bridge-shaped contact also comprises a tubular spring case, spring shield clamshell is located at the top of touch spring short transverse, and the upper end that same touch spring is taken in the upper end of spring case is arranged in the axial groove offered bottom contact support in the lump, and be pressed on the medium position of bridge shape contact lower plane, the lower end of touch spring short transverse is positioned at the bottom in pedestal chamber and relative with pedestal fixing.Prevent electric arc to the ablation of touch spring end, improve the connection breaking capacity of device for switching.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, is specifically related to a kind of contact apparatus of control and protective switching device.
Background technology
The control and protective switching device of existing integration has possessed contactor function, and require that the electric current of disjunction 6Ie is connected in carrying, voltage is 400VAC and 690VAC respectively, proposes certain requirement to switch contact arc extinguishing device.When the current specification of control and protective switching device is less (such as 12A or 32A), existing switch contact arc-control device can reach above-mentioned connection breaking capacity.But when the current specification of control and protective switching device increases (such as more than 65A); along with the increase of electric current; arc energy during disjunction is corresponding increase also; electric arc is being formed and can produce burning phenomenon to the touch spring near moving contact end in transfer process; after the certain number of times of scaling loss, touch spring is heated and deforms; contact pressure reduces, and finally causes the connection breaking capacity of existing switch contact arc-control device to reduce.
In view of above-mentioned prior art, be necessary that the structure of the contact apparatus to existing control and protective switching device is improved.For this reason, the applicant has done useful design, defines technical scheme described below.
Summary of the invention
The purpose of this utility model is the contact apparatus that will provide a kind of control and protective switching device, and it can effectively prevent electric arc to the ablation of touch spring end, improves the connection breaking capacity of device for switching.
The purpose of this utility model reaches like this, a kind of contact apparatus of control and protective switching device, comprise the pedestal with pedestal chamber, at least one electrode assemblie is provided with in described pedestal chamber, each electrode assemblie comprises two static contact components, the movable bridge-shaped contact matched with two static contact components, described movable bridge-shaped contact comprises contact support, bridge shape contact and the touch spring be resisted against on bridge shape contact, the middle part of bridge shape contact length direction is located in radial slot that contact support is offered, the two ends of bridge shape contact are respectively equipped with the moving contact for coordinating with the fixed contact on static contact component, it is characterized in that: described movable bridge-shaped contact also comprises a tubular spring case, described spring shield clamshell is located at the top of touch spring short transverse, and the upper end that same touch spring is taken in the upper end of spring case is arranged in the axial groove offered bottom contact support in the lump, and be pressed on the medium position of bridge shape contact lower plane, the lower end of touch spring short transverse is positioned at the bottom in pedestal chamber and relative with pedestal fixing.
In a specific embodiment of the present utility model, described movable bridge-shaped contact also comprises a spring support, and described spring support is fixed on the bottom in pedestal chamber, and touch spring is set on spring support.
In another specific embodiment of the present utility model, the upper end closed of described spring case.
The utility model is due to after employing said structure, the beneficial effect had: by being provided with spring case between moving contact and touch spring, moving contact and touch spring are isolated, spring case wraps the touch spring end near moving contact end, thus effectively prevent electric arc to the ablation of touch spring end, improve the connection breaking capacity of device for switching.
Accompanying drawing explanation
Fig. 1 is the stereochemical structure exploded view of contact apparatus described in the utility model.
Fig. 2 is the cutaway view of a wherein pole in contact apparatus described in the utility model.
In figure: 1. pedestal, 10. pedestal chamber, 11. fixtures, 12. guide rail card components, 13. springs; 2. run-on tab, 21. magnetic conductive boards; 3. arc extinguishing grid pieces assembly; 4. static contact component, 41. fixed contacts; 5. static contact component, 51. fixed contacts; 6. movable bridge-shaped contact, 61. contact supports, 62. bridge shape contacts, 63. touch springs, 64. spring cases, 65. spring supports, 66. moving contacts; 7. brake component; 8. brake component; 9. dividing plate, 91. distance pieces.
Embodiment
Technical spirit of the present utility model and beneficial effect can be fully understood in order to make the public; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, any changing in the form rather than substance according to the utility model design all should be considered as protection range of the present utility model.
Refer to Fig. 1 and composition graphs 2, a kind of control and protective switching device, comprise pedestal 1, described pedestal 1 has three independently pedestal chambeies 10, the arc-control device of control and protective switching device comprises the arc extinguishing grid pieces assembly 3 be located in pedestal chamber 10, be placed in the run-on tab 2 bottom pedestal chamber 10 and dividing plate 9, arc extinguishing grid pieces assembly 3 is dynamic with the pairing be arranged in pedestal chamber 10, there is between fixed contact arc transfer passage area, arc extinguishing grid pieces assembly 3 is made up of with a determining deviation arrangement multiple arc extinguishing grid pieces, the both sides being positioned at arc transfer passage area of run-on tab 2 are bent with magnetic conductive board 21, side and the magnetic conductive board 21 phase scarf of dividing plate 9, the opposite side of dividing plate 9 is provided with distance piece 91, distance piece 91 is separated between the leg of multiple arc extinguishing grid pieces.In the present embodiment, described distance piece 91 for being arranged on the groove of dividing plate 9 opposite side, in the leg insertion groove of arc extinguishing grid pieces.
At least one electrode assemblie is provided with in pedestal chamber 10 described in the utility model, each electrode assemblie comprises two static contact components 4, 5, with two static contact components 4, the 5 movable bridge-shaped contacts 6 matched, described movable bridge-shaped contact 6 comprises contact and supports 61, bridge shape contact 62 and the touch spring 63 be resisted against on bridge shape contact 62, the middle part of bridge shape contact 62 length direction is located in radial slot that contact support 61 is offered, radial slot has certain altitude in the axis of contact support 61, so that bridge shape contact 62 can support the axial translation of 61 relative to contact support 61 at contact, the two ends of bridge shape contact 62 be respectively equipped with for static contact component 4, fixed contact 41 on 5, 51 moving contacts 66 coordinated, described movable bridge-shaped contact 6 also comprises a tubular spring case 64, described spring case 64 is located at the top of touch spring 63 short transverse, and the upper end that same touch spring 63 is taken in the upper end of spring case 64 is arranged in the axial groove offered bottom contact support 61 in the lump, and be pressed on the nearly medium position of bridge shape contact 62 lower plane.The lower end of touch spring 63 short transverse is positioned at the bottom in pedestal chamber 10 and relative with pedestal 1 fixing.
In embodiment of the present utility model, preferably, movable bridge-shaped contact 6 also comprises a spring support 65, described spring support 65 is fixed on the depressed part in the middle part of run-on tab 2, run-on tab 2 is fixed on the bottom in pedestal chamber 10, spring support 65 is arranged with touch spring 63, realizes the lower end of touch spring 63 and the relative fixing of pedestal 1, and realize the mutually insulated of touch spring 63 and run-on tab 2.Certainly, the utility model is also not limited to the technical scheme of spring support 65, as long as the guiding that can realize touch spring 63 one end is fixed and the mutually insulated of itself and run-on tab 2.
Spring case 64 is in tubular, the present embodiment is preferably upper end closed, the tubular of open at its lower end, unlimited one end is stretched into for touch spring 63, closed upper end for touch spring 63 against, certainly, spring case 64 of the present utility model is not limited to such scheme, and spring case 64 also can be the opening shape that upper end has bending edge, open at its lower end, the one end opened wide is stretched into for touch spring 63, the bending edge of upper end for touch spring 63 against.
Essence of the present utility model is: due to contact support 61 offering radial slot, radial slot has certain altitude in the axis of contact support 61, so that bridge shape contact 62 can support the axial translation of 61 relative to contact support 61 at contact, and the upper end of touch spring 63 is arranged in the axial groove offered bottom contact support 61, and be pressed on the nearly medium position of bridge shape contact 62 lower plane.Therefore, in order to prevent electric arc to the ablation of touch spring 63, the height of spring case 64 is more preferably greater than the height of radial slot, whether the upper end for spring case 64 closes then not requirement, and the opening shape that the described upper end closed of above-described embodiment or upper end have bending edge is then to make spring case 64 relative with the upper end of touch spring 63 fixing.
Refer to Fig. 1, brake component 7, brake component 8 snap fit onto on pedestal 1, for fixing static contact component 4,5.Fixture 11, guide rail card component 12, spring 13 are installed to the back side of pedestal 1, and the body for device for switching is installed.
Please continue to refer to Fig. 1 and Fig. 2, describe operation principle of the present utility model: when contact support 61 promotes moving contact action by after external force, and when overcoming the spring-force driven dual of touch spring 63, dynamic and static contact is separated, major loop separating brake; After in contact support 61, external force removes, moving contact contacts with fixed contact under the spring-force driven dual of touch spring 63, and major loop closes a floodgate.
Claims (3)
1.
a kind of contact apparatus of control and protective switching device, comprise the pedestal (1) with pedestal chamber (10), at least one electrode assemblie is provided with in described pedestal chamber (10), each electrode assemblie comprises two static contact components (4, 5), with two static contact components (4, 5) the movable bridge-shaped contact (6) matched, described movable bridge-shaped contact (6) comprises contact support (61), bridge shape contact (62) and the touch spring (63) be resisted against on bridge shape contact (62), the middle part of bridge shape contact (62) length direction is located in radial slot that contact support (61) is offered, the two ends of bridge shape contact (62) be respectively equipped with for static contact component (4, 5) fixed contact (41 on, 51) moving contact (66) coordinated, it is characterized in that: described movable bridge-shaped contact (6) also comprises a tubular spring case (64), described spring case (64) is located at the top of touch spring (63) short transverse, and the upper end that same touch spring (63) is taken in the upper end of spring case (64) is arranged in the axial groove offered contact support (61) bottom in the lump, and be pressed on the medium position of bridge shape contact (62) lower plane, the lower end of touch spring (63) short transverse is positioned at the bottom in pedestal chamber (10) and relative fixing with pedestal (1).
2.
the contact apparatus of control and protective switching device as claimed in claim 1; it is characterized in that: described movable bridge-shaped contact (6) also comprises a spring support (65); described spring support (65) is fixed on the bottom of pedestal chamber (10), and touch spring (63) is set on spring support (65).
3.
the contact apparatus of control and protective switching device as claimed in claim 1, is characterized in that: the upper end closed of described spring case (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738827.8U CN204230072U (en) | 2014-12-01 | 2014-12-01 | A kind of contact apparatus of control and protective switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738827.8U CN204230072U (en) | 2014-12-01 | 2014-12-01 | A kind of contact apparatus of control and protective switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230072U true CN204230072U (en) | 2015-03-25 |
Family
ID=52928139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738827.8U Active CN204230072U (en) | 2014-12-01 | 2014-12-01 | A kind of contact apparatus of control and protective switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204230072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369573A (en) * | 2016-05-11 | 2017-11-21 | 上海诺雅克电气有限公司 | Motor protection breaker |
-
2014
- 2014-12-01 CN CN201420738827.8U patent/CN204230072U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369573A (en) * | 2016-05-11 | 2017-11-21 | 上海诺雅克电气有限公司 | Motor protection breaker |
| CN107369573B (en) * | 2016-05-11 | 2019-09-27 | 上海诺雅克电气有限公司 | Motor protection breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |