CN202183348U - Movable contact assembly and contact system of electricity leakage protection switch - Google Patents
Movable contact assembly and contact system of electricity leakage protection switch Download PDFInfo
- Publication number
- CN202183348U CN202183348U CN2011202835036U CN201120283503U CN202183348U CN 202183348 U CN202183348 U CN 202183348U CN 2011202835036 U CN2011202835036 U CN 2011202835036U CN 201120283503 U CN201120283503 U CN 201120283503U CN 202183348 U CN202183348 U CN 202183348U
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- conductive sheet
- supporter
- moving
- contact
- moving conductive
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Abstract
The utility model discloses a movable contact assembly and a contact system of an electricity leakage protection switch. The movable contact assembly comprises a supporting member, a contact spring, a movable conducting strip and a movable contact. The movable conducting strip is arranged on the supporting member and can slide along the axis direction of the movable contact relative to the supporting member, the at least one contact spring is elastically tensioned and supported between the movable conducting strip and the supporting member along the axis direction of the movable contact, and the surface of the contact spring contacted with the movable conducting strip and the fixed connecting surface of the movable contact on the movable conducting strip are positive and negative surfaces; the central axis of the contact spring is overlapped with the central axis of the movable contact, and the contact system comprises the movable contact assembly, a handle, a bracket, a static contact, a main spring, a tabletting, a connecting rod, a lock catch, a handle torsion spring, a lock catch spring and a pedestal. After employing the structure, a closing motive force generated by a mechanism and a opening motive force generated by an elastic body can act in the axis direction of the contact directly, and the motion of the movable contact is a rectilinear motion; when the closing is realized, an eccentric force is not existed theoretically, an actual applied force is not lost; and when the opening is carried out, the breaking speed can be improved, so that the structure of the contact system can be simplified.
Description
Technical field
The utility model relates to a kind of earth leakage circuit-breaker, particularly relates to a kind of moving contact component and contact system thereof of earth leakage circuit-breaker.
Background technology
Earth leakage circuit-breaker is a kind of switch element; Its not only the same can main circuit being switched on or switched off with other circuit breaker; And has a function that leakage current is detected and judges; When in the major loop electric leakage or insulation breakdown taking place, earth leakage circuit-breaker can be switched on or switched off main circuit according to judged result.The electrical equipment that earth leakage circuit-breaker is mainly used in household electrical appliance or similar applications provides earth leakage protective and switch control functions, except that earth leakage protective and can increase various protections as required; As, functions such as under voltage protection, overvoltage protection, overload protection etc.
Earth leakage circuit-breaker generally includes contact system, and the contact system of existing small-sized earth leakage circuit-breaker generally is made up of moving conductive sheet, moving contact, inlet wire wiring system, guide frame (or fixed structure); Moving contact is rigidly fixed on the moving conductive sheet, through mechanism drive the moving conductive sheet move under the qualification of guide frame (or fixed structure) realize between the sound contact separately and contact (promptly closed), thereby the break-make of realization circuit is controlled.
The contact system of this structure, the active force of mechanism acts on the moving conductive sheet earlier, but the application point of power generally has a segment distance from the contact; Because the motive force of the separating brake that combined floodgate motive force that mechanism produces and elastomer produce does not directly act on the axis direction of contact; There is eccentric force, so must have complicated limiting structure and guide frame to overcome the motion that eccentric force limits the moving conductive sheet; Its power does not directly act on the axis direction of contact, causes the actual force loss.During opening operation (separating brake), the moving conductive sheet need overcome the frictional force of limiting structure and guide frame.
The utility model content
The purpose of the utility model is to overcome the deficiency of prior art; A kind of moving contact component and contact system thereof of earth leakage circuit-breaker are provided; Be that the combined floodgate motive force of mechanism's generation and the separating brake motive force of elastomer generation can be directly acted on the axis direction of contact; Be implemented in when closing a floodgate, do not have eccentric force in theory, the actual force free of losses; And when separating brake, can improve breaking speed; Make the simplifying the structure of contact system.
The utility model solves the technical scheme that its technical problem adopted: a kind of moving contact component of earth leakage circuit-breaker comprises supporter, touch spring, moving conductive sheet and is fixed in the moving contact on the moving conductive sheet; The moving conductive sheet is installed on the supporter and can slides along the moving contact axis direction with respect to supporter; Having at least a touch spring to open along moving contact axis direction elasticity withstands between moving conductive sheet and the supporter; And the affixed face of moving contact positive and negative each other on the face of touch spring contact moving conductive sheet and the moving conductive sheet, the axis of touch spring overlaps with the axis of moving contact.
The face that is used to contact touch spring in the said moving conductive sheet is provided with projection, and an end of said touch spring is socketed in this projection and leans with this face of moving conductive sheet.
Described supporter is provided with downward opening cavity, and chamber, the top wall of the other end of said touch spring and the cavity of supporter leans.
At least be provided with the opening that the touch spring dismounting is convenient at a place in the sidewall of the cavity of said supporter.
The wall place, chamber of described supporter cavity is provided with along vertical chute; Said moving conductive sheet is slidingly fitted in the chute of supporter, between moving conductive sheet and supporter, is provided with to prevent that the moving conductive sheet is influenced by the elastic force of touch spring and breaks away from the position limiting structure of supporter.
Position limiting structure between described moving conductive sheet and the supporter comprises the protruding bud that is located on the moving conductive sheet or bending structure and the groove edge, top that is located at the chute of supporter, and the top groove of the protruding bud of moving conductive sheet or bending structure and the chute of supporter is along holding mutually and spacing.
Also be provided with one in the side near the supporter cavity in the chute of the chamber wall of said supporter cavity and be convenient to the wedge-shaped slot that the moving conductive sheet is installed, this wedge-shaped slot is connected with said chute.
Said moving conductive sheet is the L type, comprises riser and transverse sheet that one is joined; Said moving contact is fixed in the lower surface of the transverse sheet of moving conductive sheet; The face of said touch spring contact moving conductive sheet is the upper surface of the transverse sheet of moving conductive sheet; The riser of moving conductive sheet is slidingly fitted in the chute of said supporter, and the protruding bud of moving conductive sheet is located on the riser of moving conductive sheet.
The riser of said moving conductive sheet is provided with a protruding guide frame on the face of touch spring dorsad; In the chute of supporter, be provided with a gathering sill in the side away from the supporter cavity, the guide frame of the convexity of the riser of moving conductive sheet is engaged in the gathering sill of chute of supporter.
A kind of contact system of earth leakage circuit-breaker comprises moving contact component, handle, support, fixed contact, main spring, compressing tablet and pedestal; Support is installed on the pedestal; The middle part of handle and the middle part of compressing tablet are rotatably installed on support respectively, and an end of handle compresses with compressing tablet and matches; The downside of this compressing tablet one end and the supporter of moving contact component lean, and the main spring that elastic force makes progress is equipped with in the lower end of the supporter of moving contact component, and this main spring is and vertically is installed on the pedestal; Support is provided with and is used for the groove of spacing compressing tablet swing, and the other end activity of compressing tablet is engaged in the groove of support; Fixed contact is installed on the pedestal and with the moving conductive sheet of moving contact component and is in the position of matching.
Described support is provided with also that to be used for limiting the card that moving contact component moves up protruding, and this card is protruding to match with the supporter of moving contact component.
Described pedestal is provided with the guide groove that the moving contact component that is used for leading moves up and down, and moving contact component is movably received within this guide groove.
The contact system of a kind of earth leakage circuit-breaker of the utility model, when realizing closing a floodgate when the handle action, an end of handle applies downward pressure to compressing tablet; This pressure imposes on supporter through compressing tablet, and moving contact component is moved downward in the guide groove of pedestal, then supporter compression main spring; Also driven the moving conductive sheet that is installed on the supporter when supporter moves downward and moved downward, the moving contact on the moving conductive sheet has been contacted, with fixed contact on the fixed contact of below owing to be designed with overtravel; Supporter continues to move downward, and makes the moving conductive sheet be with respect to supporter and moves upward, and promptly the moving conductive sheet is to move upward along chute with respect to supporter; Moving conductive sheet compression contacts spring then; Touch spring provides contact force because main spring is vertical setting, and touch spring be vertical elasticity open withstand between moving conductive sheet and the supporter and be in moving contact directly over; Like this, the combined floodgate motive force of mechanism's generation is to directly act on the axis direction of contact.When separating brake; One end of handle applies downward pressure to compressing tablet and disappears, and the effect that supporter is resetted by main spring moves upward, and has also driven the moving conductive sheet that is installed on the supporter when supporter moves upward and has moved upward; Moving contact and the fixed contact on the fixed contact of below on the moving conductive sheet are separated; When supporter moves upward to the card of support when protruding, blocked protruding position-limiting action, supporter can't move up again.
The contact system of a kind of earth leakage circuit-breaker of the utility model on structural design, no longer needs the limiting structure of special moving conductive sheet, on supporter, designs chute, directly forms guide frame with the moving conductive sheet.
The beneficial effect of the utility model is; Because the moving contact that has adopted supporter, touch spring, moving conductive sheet and be fixed on the moving conductive sheet constitutes moving contact component; And by this moving contact component and be matched with handle, support, fixed contact, main spring, touch spring, compressing tablet and pedestal and constitute contact system, and the moving conductive sheet is installed on the supporter and can slides along the moving contact axis direction with respect to supporter; Having at least a touch spring to open along moving contact axis direction elasticity withstands between moving conductive sheet and the supporter; And the affixed face of moving contact positive and negative each other on the face of touch spring contact moving conductive sheet and the moving conductive sheet, the axis of touch spring overlaps with the axis of moving contact.This structure directly acts on the axis direction of contact the combined floodgate motive force of mechanism's generation and the motive force of the separating brake that elastomer (main spring) produces, and does not have eccentric force, actual force free of losses in theory; During opening operation (separating brake), the moving conductive sheet only need overcome the frictional force of guide frame and no longer include the frictional force of limiting structure, helps improving breaking speed; And on structural design, no longer need the limiting structure of special moving conductive sheet, and on supporter, design chute, directly form guide frame with the moving conductive sheet, make the simplifying the structure of contact system.
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain; But the moving contact component and the contact system thereof of a kind of earth leakage circuit-breaker of the utility model are not limited to embodiment.
Description of drawings
Fig. 1 is the structure cutaway view of the moving contact component of the utility model;
Fig. 2 is the organigram of the moving contact component of the utility model;
Fig. 3 be along A-A among Fig. 2 to cut away view;
Fig. 4 is the organigram of the contact system of the utility model;
Fig. 5 is the sketch map of contact closure condition of the contact system of the utility model;
Fig. 6 is the sketch map of contact off-state of the contact system of the utility model;
Fig. 7 is the scheme of installation one of the contact system of the utility model
Fig. 8 is the scheme of installation two of the contact system of the utility model.
Embodiment
Embodiment, to shown in Figure 3, the moving contact component of a kind of earth leakage circuit-breaker of the utility model comprises supporter 7, touch spring 6, moving conductive sheet 3 and is fixed in the moving contact 30 on the moving conductive sheet referring to Fig. 1; Moving conductive sheet 3 is installed on the supporter 7 and can slides along moving contact 30 axis directions with respect to supporter; Having at least a touch spring 6 to open along moving contact axis direction elasticity withstands between moving conductive sheet 3 and the supporter 7; And the affixed face of moving contact 30 positive and negative each other on the face of touch spring 6 contact moving conductive sheets and the moving conductive sheet, the axis of touch spring 6 overlaps with the axis of moving contact 30.
The face that is used to contact touch spring 6 in the said moving conductive sheet 3 is provided with projection 301; Projection 301 is an integral structure with moving contact 30; Promptly a riveted holes is set,, and lets a part of protruding this face to moving conductive sheet 3 of moving contact 30 another side of moving contact 30 rivetings at moving conductive sheet 3 at moving conductive sheet 3; One end of said touch spring 6 is socketed in this projection 301 and leans with this face of moving conductive sheet.Like this, touch spring one end just can carry out spacing through the spring position limiting structure that is provided with on the moving conductive sheet.
Described supporter 7 is provided with downward opening cavity 71, and chamber, the top wall of the other end of said touch spring 6 and the cavity of supporter 71 leans.The touch spring other end is to place in the spacing cavity of spring of supporter setting.
At least be provided with a place in the sidewall of the cavity 71 of said supporter and be convenient to the opening 73 of touch spring dismounting.At least be provided with place's opening in the supporter cavity side walls, can make things convenient for the dismounting of touch spring.
The wall place, chamber of described supporter cavity 71 is provided with along vertical chute 72; Said moving conductive sheet 3 is slidingly fitted in the chute 72 of supporter, between moving conductive sheet 3 and supporter 7, is provided with to prevent that the moving conductive sheet is influenced by the elastic force of touch spring 6 and breaks away from the position limiting structure of supporter.This position limiting structure can prevent that the moving conductive sheet from dropping out from supporter under the effect of touch spring counter-force.
Position limiting structure between described moving conductive sheet and the supporter comprises protruding bud or bending structure (present embodiment adopts protruding luxuriant 311) that is located on the moving conductive sheet and the groove edge, top that is located at the chute 72 of supporter, the moving conductive sheet protruding luxuriant 311 with the top groove of the chute 72 of supporter along holding mutually and spacing.
Also be provided with one in the side near the supporter cavity in the chute 72 of the chamber wall of said supporter cavity and be convenient to the wedge-shaped slot 74 that the moving conductive sheet is installed, this wedge-shaped slot 74 is connected with said chute 72.Wedge-shaped slot is set, can makes things convenient for the moving conductive sheet to install, reduce the contact area between chute and moving conductive sheet, thereby reduce the moving conductive sheet when moving and the frictional resistance of supporter.
Said moving conductive sheet 3 is the L type, comprises riser 31 and transverse sheet 32 that one is joined; Said moving contact 30 is fixed in the lower surface of the transverse sheet 32 of moving conductive sheet; The face of said touch spring 6 contact moving conductive sheets is the upper surface of the transverse sheet 32 of moving conductive sheet; The riser 31 of moving conductive sheet is slidingly fitted in the chute 72 of said supporter, and protruding luxuriant 311 of moving conductive sheet is located on the riser 31 of moving conductive sheet.
The riser 31 of said moving conductive sheet is provided with a protruding guide frame 312 on the face of touch spring dorsad; In the chute 72 of supporter, be provided with a gathering sill 75 in the side away from the supporter cavity, the guide frame 312 of the convexity of the riser of moving conductive sheet 3 is engaged in the gathering sill 75 of chute of supporter.The cooperation of guide frame and gathering sill makes that the guide frame of moving conductive sheet is spacing in gathering sill, and reduces and rock.
Wherein, moving conductive sheet 3 is two, then supporter 7 be provided with two correspondences downward opening cavity 71.
Extremely shown in Figure 8 referring to Fig. 4; The contact system of a kind of earth leakage circuit-breaker of the utility model; Comprise moving contact component, handle 1, support 2, fixed contact 4 (containing fixed contact 40), main spring 5, compressing tablet 8 and pedestal 9, and connecting rod, snap close, handle torsion spring and snap close torsion spring; Support 2 is installed on the pedestal 9; The middle part of the middle part of handle 1 and compressing tablet 8 is rotatably installed on support 2 respectively; Install such as realizing through modes such as rotating shafts; Like this; The action of handle 1 two ends of handle 1 and compressing tablet 8 can be rotated around the rotating shaft of separately centre, and an end of handle 1 compress and match with compressing tablet 8, so that can apply downward pressure to compressing tablet 8 one ends; The downside of these compressing tablet 8 one ends and the supporter 7 of moving contact component lean, and the main spring 5 that elastic force makes progress is equipped with in the lower end of the supporter 7 of moving contact component, and this main spring 5 is and vertically is installed on the pedestal 9; Support 2 is provided with and is used for the groove 21 of spacing compressing tablet swing, and the other end activity of compressing tablet 8 is engaged in the groove 21 of support; Fixed contact 4 is installed on the pedestal and with the moving conductive sheet 3 of moving contact component and is in the position of matching; The lower end at the middle part of supporter 7 is with main spring 5 be connected (promptly being pressed over);
Described support 2 is provided with also that to be used for limiting card that moving contact component moves up protruding 22, and this blocks protruding 22 and matches with the supporter 7 of moving contact component.On support, be provided with position limiting structure, purpose is the motion on the restriction moving contact component vertical direction.
Described pedestal 9 is provided with the guide groove 91 that the moving contact component that is used for leading moves up and down, and moving contact component is movably received within this guide groove 91.On pedestal, be provided with position limiting structure, in the time of can reducing the moving contact component motion, all around occur rocking.
The contact system of a kind of earth leakage circuit-breaker of the utility model, when realizing closing a floodgate when handle 1 action, an end of handle 1 applies downward pressure to compressing tablet 8; This pressure imposes on supporter 7 through compressing tablet 8, and moving contact component is moved downward in the guide groove 91 of pedestal 9, then supporter 7 compression main springs 5; Also having driven the moving conductive sheet 3 that is installed on the supporter 7 when supporter 7 moves downward moves downward; Moving contact 30 on the moving conductive sheet 3 is contacted with fixed contact 40 on the below fixed contact 4, owing to be designed with overtravel, supporter 7 continues to move downward; Making moving conductive sheet 3 be with respect to supporter 7 moves upward; Be that moving conductive sheet 7 is to move upward along chute 72 with respect to supporter 7, moving conductive sheet 3 compression contacts springs 6 then, touch spring 6 provides contact force; Because main spring 5 is vertical setting; And touch spring 6 be vertical elasticity open withstand between moving conductive sheet 3 and the supporter 7 and be in moving contact 30 directly over, like this, the combined floodgate motive force that mechanism produces is to directly act on the axis direction of contact.When separating brake; One end of handle 1 applies downward pressure to compressing tablet 8 and disappears, and the effect that supporter 7 is resetted by main spring 5 moves upward, and has also driven the moving conductive sheet 3 that is installed on the supporter 7 when supporter 7 moves upward and has moved upward; Moving contact 30 on the moving conductive sheet 3 is separated with fixed contact 40 on the below fixed contact 4; To move upward to the card of support 2 protruding 22 the time when supporter 7, blocked protruding 22 position-limiting action, and supporter 7 can't move up again.
The contact system of a kind of earth leakage circuit-breaker of the utility model on structural design, no longer needs the limiting structure of special moving conductive sheet, on supporter, designs chute, directly forms guide frame with the moving conductive sheet.
The foregoing description only is used for further specifying the moving contact component and the contact system thereof of a kind of earth leakage circuit-breaker of the utility model; But the utility model is not limited to embodiment; Every technical spirit according to the utility model all falls in the protection range of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.
Claims (12)
1. the moving contact component of an earth leakage circuit-breaker is characterized in that: comprise supporter, touch spring, moving conductive sheet and be fixed in the moving contact on the moving conductive sheet; The moving conductive sheet is installed on the supporter and can slides along the moving contact axis direction with respect to supporter; Having at least a touch spring to open along moving contact axis direction elasticity withstands between moving conductive sheet and the supporter; And the affixed face of moving contact positive and negative each other on the face of touch spring contact moving conductive sheet and the moving conductive sheet, the axis of touch spring overlaps with the axis of moving contact.
2. the moving contact component of earth leakage circuit-breaker according to claim 1 is characterized in that: the face that is used to contact touch spring in the said moving conductive sheet is provided with projection, and an end of said touch spring is socketed in this projection and leans with this face of moving conductive sheet.
3. the moving contact component of earth leakage circuit-breaker according to claim 2, it is characterized in that: described supporter is provided with downward opening cavity, and chamber, the top wall of the other end of said touch spring and the cavity of supporter leans.
4. the moving contact component of earth leakage circuit-breaker according to claim 3 is characterized in that: be provided with the opening that the touch spring dismounting is convenient at a place in the sidewall of the cavity of said supporter at least.
5. the moving contact component of earth leakage circuit-breaker according to claim 3; It is characterized in that: the wall place, chamber of described supporter cavity is provided with along vertical chute; Said moving conductive sheet is slidingly fitted in the chute of supporter, between moving conductive sheet and supporter, is provided with to prevent that the moving conductive sheet is influenced by the elastic force of touch spring and breaks away from the position limiting structure of supporter.
6. the moving contact component of earth leakage circuit-breaker according to claim 5; It is characterized in that: the position limiting structure between described moving conductive sheet and the supporter comprises the protruding bud that is located on the moving conductive sheet or bending structure and the groove edge, top that is located at the chute of supporter, and the top groove of the protruding bud of moving conductive sheet or bending structure and the chute of supporter is along holding mutually and spacing.
7. the moving contact component of earth leakage circuit-breaker according to claim 5; It is characterized in that: also be provided with one in the side near the supporter cavity in the chute of the chamber wall of said supporter cavity and be convenient to the wedge-shaped slot that the moving conductive sheet is installed, this wedge-shaped slot is connected with said chute.
8. the moving contact component of earth leakage circuit-breaker according to claim 5, it is characterized in that: said moving conductive sheet is the L type, comprises riser and transverse sheet that one is joined; Said moving contact is fixed in the lower surface of the transverse sheet of moving conductive sheet; The face of said touch spring contact moving conductive sheet is the upper surface of the transverse sheet of moving conductive sheet; The riser of moving conductive sheet is slidingly fitted in the chute of said supporter, and the protruding bud of moving conductive sheet is located on the riser of moving conductive sheet.
9. the moving contact component of earth leakage circuit-breaker according to claim 8; It is characterized in that: the riser of said moving conductive sheet is provided with a protruding guide frame on the face of touch spring dorsad; In the chute of supporter, be provided with a gathering sill in the side away from the supporter cavity, the guide frame of the convexity of the riser of moving conductive sheet is engaged in the gathering sill of chute of supporter.
10. the contact system based on the earth leakage circuit-breaker of the said moving contact component of claim 1 is characterized in that: comprise moving contact component, handle, support, fixed contact, main spring, compressing tablet and pedestal; Support is installed on the pedestal; The middle part of handle and the middle part of compressing tablet are rotatably installed on support respectively, and an end of handle compresses with compressing tablet and matches; The downside of this compressing tablet one end and the supporter of moving contact component lean, and the main spring that elastic force makes progress is equipped with in the lower end of the supporter of moving contact component, and this main spring is and vertically is installed on the pedestal; Support is provided with and is used for the groove of spacing compressing tablet swing, and the other end activity of compressing tablet is engaged in the groove of support; Fixed contact is installed on the pedestal and with the moving conductive sheet of moving contact component and is in the position of matching.
11. contact system according to claim 10 is characterized in that: described support is provided with also that to be used for limiting the card that moving contact component moves up protruding, and this card is protruding to match with the supporter of moving contact component.
12. contact system according to claim 10 is characterized in that: described pedestal is provided with the guide groove that the moving contact component that is used for leading moves up and down, and moving contact component is movably received within this guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202835036U CN202183348U (en) | 2011-08-03 | 2011-08-03 | Movable contact assembly and contact system of electricity leakage protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202835036U CN202183348U (en) | 2011-08-03 | 2011-08-03 | Movable contact assembly and contact system of electricity leakage protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183348U true CN202183348U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202835036U Expired - Lifetime CN202183348U (en) | 2011-08-03 | 2011-08-03 | Movable contact assembly and contact system of electricity leakage protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202183348U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915895A (en) * | 2011-08-03 | 2013-02-06 | 厦门宏美电子有限公司 | Moving contact component of leakage protection switch and contact system thereof |
| CN105598064A (en) * | 2015-09-08 | 2016-05-25 | 宁国市南方耐磨材料有限公司 | Wear-resisting steel ball circular cleaning device |
| CN114121522A (en) * | 2021-11-30 | 2022-03-01 | 浙江新控电气科技有限公司 | Contact support for control and protection switching device |
-
2011
- 2011-08-03 CN CN2011202835036U patent/CN202183348U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915895A (en) * | 2011-08-03 | 2013-02-06 | 厦门宏美电子有限公司 | Moving contact component of leakage protection switch and contact system thereof |
| CN102915895B (en) * | 2011-08-03 | 2014-11-26 | 厦门宏发开关设备有限公司 | Moving contact component of leakage protection switch and contact system thereof |
| CN105598064A (en) * | 2015-09-08 | 2016-05-25 | 宁国市南方耐磨材料有限公司 | Wear-resisting steel ball circular cleaning device |
| CN114121522A (en) * | 2021-11-30 | 2022-03-01 | 浙江新控电气科技有限公司 | Contact support for control and protection switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN HONGFA ELECTRICAL SAFETY + CONTROLS CO., LT Free format text: FORMER NAME: XIAMEN HONGMEI ELECTRONIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jimei North Industrial Zone, Xiamen city of Fujian province Donglin road 361000 No. 566 Patentee after: XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO., LTD. Address before: Jimei North Industrial Zone, Xiamen city of Fujian province Donglin road 361000 No. 566 Patentee before: Xiamen Hongmei Electronic Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120404 Effective date of abandoning: 20141126 |
|
| RGAV | Abandon patent right to avoid regrant |