CN204464216U - A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise - Google Patents
A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise Download PDFInfo
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- CN204464216U CN204464216U CN201520204719.7U CN201520204719U CN204464216U CN 204464216 U CN204464216 U CN 204464216U CN 201520204719 U CN201520204719 U CN 201520204719U CN 204464216 U CN204464216 U CN 204464216U
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Abstract
A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise.The contact mainly solved on the moving contact of present circuit breaker and fixed contact is mostly curved-surface structure, and the contact area of dynamic and static contact is little, and the heat of generation is not easy to distribute, and temperature rise is higher, affects contact problem in useful life.It is characterized in that: described moving contact (12) and fixed contact (17) are respectively equipped with moving contact (121) and fixed contact (171), and described moving contact (121) and fixed contact (171) surface are planar structure.The utility model provides a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise, moving contact on its moving contact and fixed contact and fixed contact surface are planar structure, and be face contact when dynamic and static like this contact laminating, contact area is large, temperature rise is lower, contact long service life.
Description
Technical field
The utility model relates to field of circuit breakers, specifically a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise.
Background technology
Circuit breaker has structure advanced person, dependable performance, breaking capacity is strong, the feature such as small and exquisite aesthetic in appearance, make office building, the illumination of house and similar building, the overload of distribution line and equipment and the use of short-circuit protection, also can be used as the use of circuit infrequently make-break operation and conversion, contact on the moving contact of present circuit breaker and fixed contact is mostly curved-surface structure, or one side is curved surface, another side is planar structure, (if publication number is CN 103140911 A, patent name is the Chinese patent of " circuit breaker "), the circuit breaker of this spline structure when in use, dynamic, the contact area of fixed contact is little, the heat produced is not easy to distribute, temperature rise is higher, affect contact useful life.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise, the contact mainly solved on the moving contact of present circuit breaker and fixed contact is mostly curved-surface structure, the contact area of dynamic and static contact is little, the heat produced is not easy to distribute, temperature rise is higher, affects contact problem in useful life.
The technical scheme that the utility model adopts is:
A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise, comprise housing, institute's tripping mechanism is provided with in described housing, arc-extinguishing mechanism and contact system, described contact system comprises moving contact and the fixed contact of corresponding setting, described tripping mechanism comprises support, magnetictrip, snap close and tripping, described magnetictrip is corresponding with described snap close, described tripping and snap close correspondence are arranged, described support is provided with the first jointed shaft, described moving contact is hinged on described first jointed shaft, described first jointed shaft is also provided with the first reduction torsion spring, described first reduction torsion spring two ends compress with support and moving contact respectively, described moving contact and fixed contact are respectively equipped with moving contact and fixed contact, described moving contact and fixed contact surface are planar structure.
The opposite face of described moving contact and described fixed contact is rectangle.
Described first jointed shaft is located at described frame bottom, described pedestal upper end portion is also provided with the second jointed shaft, described second jointed shaft is provided with the second reduction torsion spring, described snap close front end is provided with snap close hinged seat, described snap close hinged seat and described second reduction torsion spring respective side are provided with lug, described snap close rear end is provided with retaining wall, and the lower surface of the upper surface at the two ends of described second reduction torsion spring and described lug and described retaining wall is corresponding to be arranged.
Be provided with the first stopper slot on the right side of described moving contact, described frame bottom is provided with the second stopper slot, and described first reduction torsion spring two ends diameter forms spacing cooperation with the width adaptation of described first stopper slot and described second stopper slot respectively.
Described frame bottom is also provided with dovetail groove, also comprises back-moving spring, and described back-moving spring front end coordinates with described dovetail groove is spacing and presses on bottom described dovetail groove, and described back-moving spring rear end compresses and described inner walls.
The beneficial effects of the utility model are: the utility model provides a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise, moving contact on its moving contact and fixed contact and fixed contact surface are planar structure, it is face contact when dynamic and static like this contact laminating, contact area is large, temperature rise is lower, contact long service life.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the sectional perspective schematic diagram of the utility model embodiment.
Fig. 3 is the schematic perspective view of the support of the utility model embodiment.
Fig. 4 is the schematic rear view of the support of the utility model embodiment.
Fig. 5 is the schematic perspective view of the snap close of the utility model embodiment.
Fig. 6 is Figure 1A place enlarged drawing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in the figure, a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise, comprise housing 1, institute's tripping mechanism is provided with in described housing 1, arc-extinguishing mechanism and contact system, described contact system comprises moving contact 12 and the fixed contact 17 of corresponding setting, described tripping mechanism comprises support 11, magnetictrip 16, snap close 13 and tripping 14, described magnetictrip 16 is corresponding with described snap close 13, described tripping 14 and snap close 13 correspondence are arranged, described support 11 is provided with the first jointed shaft 111, described moving contact 12 is hinged on described first jointed shaft 111, described first jointed shaft 111 is also provided with the first reduction torsion spring 1111, described first reduction torsion spring 1111 two ends compress with support 11 and moving contact 12 respectively, described moving contact 12 and fixed contact 17 are respectively equipped with moving contact 121 and fixed contact 171, described moving contact 121 is planar structure with fixed contact 171 surface.The utility model provides a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise, moving contact on its moving contact and fixed contact and fixed contact surface are planar structure, and be face contact when dynamic and static like this contact laminating, contact area is large, temperature rise is lower, contact long service life.
In the utility model, as shown in the figure, described moving contact 121 is rectangle with the opposite face of described fixed contact 171.Here also can be arranged to the shape such as circle or triangle according to the actual requirements, squareness ratio is easier to processing, and result of use is better.
In the utility model, as shown in the figure, described first jointed shaft 111 is located at bottom described support 11, described support 11 upper end is also provided with the second jointed shaft 113, described second jointed shaft 113 is provided with the second reduction torsion spring 1131, described snap close 13 front end is provided with snap close hinged seat 131, described snap close hinged seat 131 is provided with lug 132 with described second reduction torsion spring 1131 respective side, described snap close 13 rear end is provided with retaining wall 133, and the lower surface of the upper surface at the two ends of described second reduction torsion spring 1131 and described lug 132 and described retaining wall 133 is corresponding to be arranged.First jointed shaft and the second jointed shaft are separately positioned on the both sides of support, structure is compacter, result of use is better, the lug that snap close handing-over seat is provided with and the retaining wall that snap close rear end is provided with carry out spacing in the vertical direction of the second reduction torsion spring, when in use, second reduction torsion spring can not eject, and performance is more stable, and result of use is good.
In the utility model, as shown in the figure, the first stopper slot 121 is provided with on the right side of described moving contact 12, be provided with the second stopper slot 114 bottom described support 11, described first reduction torsion spring 1111 two ends diameter forms spacing cooperation with the width adaptation of described first stopper slot 121 and described second stopper slot 114 respectively.
In the utility model, as shown in the figure, dovetail groove 115 is also provided with bottom described support 11, also comprise back-moving spring 116, described back-moving spring 116 front end coordinates with described dovetail groove 115 is spacing and presses on bottom described dovetail groove 115, and described back-moving spring 116 rear end compresses and described housing 1 inwall.During use, can place in dovetail groove by circle a few before back-moving spring, such back-moving spring can not be deviate from, and when acting on support, performance is more stable, and structure is simple, and result of use is good.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection range of the present utility model.
Claims (5)
1. one kind is provided with the circuit breaker of the dynamic/static contact of low-temperature-rise, comprise housing (1), institute's tripping mechanism is provided with in described housing (1), arc-extinguishing mechanism and contact system, described contact system comprises moving contact (12) and the fixed contact (17) of corresponding setting, described tripping mechanism comprises support (11), magnetictrip (16), snap close (13) and tripping (14), described magnetictrip (16) is corresponding with described snap close (13), described tripping (14) and snap close (13) correspondence are arranged, described support (11) is provided with the first jointed shaft (111), described moving contact (12) is hinged on described first jointed shaft (111), described first jointed shaft (111) is also provided with the first reduction torsion spring (1111), described first reduction torsion spring (1111) two ends compress with support (11) and moving contact (12) respectively, it is characterized in that: described moving contact (12) and fixed contact (17) are respectively equipped with moving contact (121) and fixed contact (171), described moving contact (121) and fixed contact (171) surface are planar structure.
2. a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise according to claim 1, is characterized in that: described moving contact (121) is rectangle with the opposite face of described fixed contact (171).
3. a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise according to claim 1, it is characterized in that: described first jointed shaft (111) is located at described support (11) bottom, described support (11) upper end is also provided with the second jointed shaft (113), described second jointed shaft (113) is provided with the second reduction torsion spring (1131), described snap close (13) front end is provided with snap close hinged seat (131), described snap close hinged seat (131) and described second reduction torsion spring (1131) respective side are provided with lug (132), described snap close (13) rear end is provided with retaining wall (133), the lower surface of the upper surface at the two ends of described second reduction torsion spring (1131) and described lug (132) and described retaining wall (133) is corresponding to be arranged.
4. a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise according to claim 1, it is characterized in that: described moving contact (12) right side is provided with the first stopper slot (121), described support (11) bottom is provided with the second stopper slot (114), and described first reduction torsion spring (1111) two ends diameter forms spacing cooperation with the width adaptation of described first stopper slot (121) and described second stopper slot (114) respectively.
5. a kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise according to claim 1, it is characterized in that: described support (11) bottom is also provided with dovetail groove (115), also comprise back-moving spring (116), described back-moving spring (116) front end coordinates with described dovetail groove (115) is spacing and presses on described dovetail groove (115) bottom, and described back-moving spring (116) rear end compresses and described housing (1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520204719.7U CN204464216U (en) | 2015-04-08 | 2015-04-08 | A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520204719.7U CN204464216U (en) | 2015-04-08 | 2015-04-08 | A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464216U true CN204464216U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520204719.7U Active CN204464216U (en) | 2015-04-08 | 2015-04-08 | A kind of circuit breaker being provided with the dynamic/static contact of low-temperature-rise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464216U (en) |
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2015
- 2015-04-08 CN CN201520204719.7U patent/CN204464216U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |