CN201829430U - Multi-break plastic-shell type circuit breaker - Google Patents
Multi-break plastic-shell type circuit breaker Download PDFInfo
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- CN201829430U CN201829430U CN 201020586389 CN201020586389U CN201829430U CN 201829430 U CN201829430 U CN 201829430U CN 201020586389 CN201020586389 CN 201020586389 CN 201020586389 U CN201020586389 U CN 201020586389U CN 201829430 U CN201829430 U CN 201829430U
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- moving contact
- conductor
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- circuit breaker
- contact
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Abstract
The utility model provides a multi-break circuit breaker, which adopts a preset connecting mode. In an insulating shell, every two adjacent groups of movable contacts are connected by a conductor or a group of movable contacts and static contacts corresponding to the adjacent group of movable contacts are connected by another conductor; after connection by any mode, poles which are provided with at least two breaks connected in series and are homopolar and cophasal are formed; and two groups of movable contacts can rotate independently and relative to an insulating rotary shaft. The plurality of breaks are connected in series in the circuit breaker shell, and a user does not need to connect wires at wiring terminals independently in order to connect the breaks in series. The long time-delay characteristic also is set under the mode of preset connecting wires, and the acting characteristic of the multi-break circuit breaker is not influenced when the multi-break circuit breaker is used by the user.
Description
Technical field
The utility model relates to breaker of plastic casing, belongs to the low-voltage electrical apparatus field.
Background technology
Along with the development of new energy technology, low voltage component is had higher requirement.Especially along with constantly the developing of photovoltaic power plant, the performance index of the protection component that power plant is required have also had higher requirement, and for example, in the photo-voltaic power supply direct current system, the rated operational voltage of low-voltage electrical apparatus is up to DC1500V.Adopt the method for breakpoint series connection, can improve the interrupting performance of circuit breaker.To this, domestic and international many producers have also launched respectively various breaker connection application schemes, carry out wiring at the external connection terminal place of circuit breaker, make the two poles of the earth of circuit breaker or more multi-stage series connection get up to form the series connection breakpoint.Though this application scheme can reach the requirement of high working voltage, but often the wiring at engineering application middle connecting terminal place can be according to the length 2m of 8.3.3.3.4 regulation among the GB 14048.2, cause heat accumulation herein to increase like this, heat is behind circuit breaker inside, and directly the long delay operating characteristics of bimetal leaf as the long delay release adopted in influence.
The utility model content
The utility model proposes a kind of multibreak circuit breaker, adopt and to preset connected mode, a plurality of breakpoints are connected in Shell of circuit breaker inside, need not the user for the breakpoint of connecting voluntarily in the wiring of binding post place.The long delay characteristic also is to adjust under this mode that presets wiring, and its operating characteristics can not be affected yet when the user used.
The utility model is by the following technical solutions:
A kind of multibreak moulded case circuit breaker comprises insulation shell, operating mechanism, release lever, moving contact, fixed contact, arc control device, insulation rotating shaft.At least two group moving contacts are installed in the insulation rotating shaft, respectively organize mutually insulated between moving contact after the installation, can rotate with respect to the insulation rotating shaft, and every group of moving contact all has corresponding fixed contact and arc control device.In insulation shell, connect by a conductor between every two groups of adjacent moving contacts, or connect by a conductor between one group of moving contact and the adjacent one group of pairing fixed contact of moving contact, and after above any-mode connection, formation has the same polarity or the synchronous utmost point that at least two breakpoints are in series, and two groups of moving contacts can be with respect to insulation rotating shaft independent rotation.
Between two groups of adjacent moving contacts or the bonding conductor between one group of moving contact and the adjacent one group of pairing fixed contact of moving contact be flexible conductor, hard conductor or both combinations.
At least one thermal overload release or at least one magnetic release can be set on the bonding conductor.
Hard conductor is characterized in that: hard conductor contacts with moving contact, and moving contact can rotate relative to hard conductor.
When passing through conductor connection between two groups of adjacent moving contacts, the circuit breaker leading-out terminal is drawn on fixed contact; After being connected by conductor between one group of moving contact and the adjacent one group of pairing fixed contact of moving contact, leading-out terminal is being drawn in the moving contact back.
Description of drawings
Fig. 1 is the schematic diagram of embodiment 1;
Fig. 2 is the schematic diagram of embodiment 2;
Fig. 3 is the axis side view of embodiment 1.1;
Fig. 4 is the structure chart of the bar shaped moving contact among the embodiment 1.1;
Fig. 5 is the structure chart of the insulation rotating shaft among the embodiment 1.1;
Fig. 6 is the axis side view of embodiment 1.2;
Fig. 7 is the structure chart of the bar shaped moving contact among the embodiment 1.2;
Fig. 8 is the structure chart of the insulation rotating shaft among the embodiment 1.2;
Fig. 9 is the structure chart of the clamping plate among the embodiment 1.2
Figure 10 is the axis side view of embodiment 1.3;
Figure 11 is the structure chart of the clamping plate among the embodiment 1.3.
Embodiment
Embodiment 1.1 of the present utility model is shown in Fig. 3-5.Bar shaped moving contact 1, axle 5 and insulation rotating shaft 7, the axle 5 cylindrical screw parts of passing the hole 11 on the bar shaped moving contact 1 and passing torsion spring 6, and place the groove 72 of insulation rotating shaft 7.Turn round on the torsion spring 6 in the groove 12 that arm 61 is pressed in bar shaped moving contact 1 afterbody, torsion spring 6 following turned round on the face 71 that arm 62 is pressed in insulation rotating shaft 7, by above two active positions, make torsion spring 6 store certain energy, and the inner surface of the cylindrical screw part of torsion spring 6 is pressed on the cylindrical outer surface of axle 5, thereby tightly axle 5 is pressed in the groove 72 of insulation rotating shaft 7.Simultaneously, owing to turning round the afterbody that arm 61 acts on bar shaped moving contact 1 on the torsion spring 6, make the middle part of bar shaped moving contact be pressed on the face 73 of insulation rotating shaft 7.Such structure makes that bar shaped moving contact 1 can be the axle center with axle 5, rotate with respect to insulation rotating shaft 7, but the prerequisite that bar shaped moving contact 1 rotates is the torsion that must overcome torsion spring 6.Flexible conductor 21 connects the afterbody of two bar shaped moving contacts 1 by the mode of welding.Owing to connect two bar shaped moving contacts 1 for being flexible coupling, so two bar shaped moving contacts can relatively independently rotate.
Embodiment 1.2 of the present utility model is shown in Fig. 6-9.Bar shaped moving contact 1, axle 5 and insulation rotating shaft 7, axle 5 holes of passing on the bar shaped moving contact 1 11, and pass the hole 74 of insulation in the rotating shaft 7.Stage clip 8 one ends are pressed on the face 75 of insulation rotating shaft, and the other end is pressed in taking advantage of on the spring bracket 12 on the bar shaped moving contact 1, make stage clip 7 store certain energy, and make on bar shaped moving contact 1 face 73 that is pressed in insulation rotating shaft 7 tightly.Such structure makes that bar shaped moving contact 1 can be the axle center with axle 5, rotate with respect to insulation rotating shaft 7, but the prerequisite that bar shaped moving contact 1 rotates is the pressure that must overcome stage clip 8.Hole 231 on the clamping plate 23 is also passed by axle 5, and clamping plate 23 clampings the face 13 and the face 14 of bar shaped moving contact 1.One end of stage clip 9 is pressed on the clamping plate 23, and the other end is pressed in the insulation rotating shaft 7 by pressing plate 91.Stage clip has been stored must energy, makes clamping plate 23 be pressed in tightly on the face 13 and face 14 of bar shaped moving contact, thereby has obtained well to electrically contact.Connect support chip and connect two groups of clamping plate 23.Connect support chip 22 and clamping plate 23 and constituted conductor 2 between two groups of bar shaped moving contacts 1.Because clamping plate 23 have taked the mode of clamping to be connected with bar shaped moving contact 1,, can guarantee that each bar shaped moving contact 1 rotation in two groups of bar shapeds all is separate so the degree of freedom that the bar shaped moving contact rotates is not subjected to the influence of conductor 2.
Embodiment 1.3 of the present utility model is shown in Figure 10-11.Except that the structure shown in the embodiment 2, thermal overload release 3 and magnetic release 4 have been increased.Thermal overload release 3 is made up of bimetal leaf 31, and magnetic release is made up of armature 41, support 42, yoke 43.Simultaneously, wherein the structure of one group of clamping plate 23 also changes, and the clamping bar shaped moving contact 1 in realizing embodiment 2 and not influencing the function of its rotation has increased hole 232.Hole 232 act as strap 23, and changing by insulation rotating shaft 7 back shafts 5 is that clamping plate 23 support.Also there are other variant forms in embodiment 3, changes the structure of the clamping plate 23 on right side into as the clamping plate 23 in left side, can be increased to two groups of thermal overload releases 3 and magnetic release 4.The release that is provided with on the conductor 2 is not limited only to one group or two groups, and after increasing these and being provided with, conductor does not influence the relatively independent rotation of each bar shaped moving contact 1 of double break contact.
Claims (5)
1. a multibreak moulded case circuit breaker comprises insulation shell, operating mechanism, release lever, moving contact, fixed contact, arc control device, insulation rotating shaft.At least two group moving contacts are installed in the insulation rotating shaft, respectively organize mutually insulated between moving contact after the installation, can rotate with respect to the insulation rotating shaft, every group of moving contact all has corresponding fixed contact and arc control device, it is characterized in that: in insulation shell, connect by a conductor between every two groups of adjacent moving contacts, or connect by a conductor between one group of moving contact and the adjacent one group of pairing fixed contact of moving contact, and after above any-mode connection, formation has the same polarity or the synchronous utmost point that at least two breakpoints are in series, and two groups of moving contacts can be with respect to insulation rotating shaft independent rotation.
2. multibreak moulded case circuit breaker according to claim 1 is characterized in that: between two groups of adjacent moving contacts or the bonding conductor between one group of moving contact and the adjacent one group of pairing fixed contact of moving contact be flexible conductor, hard conductor or both combinations.
3. bonding conductor according to claim 2 is characterized in that: at least one thermal overload release or at least one magnetic release can be set on it.
4. hard conductor according to claim 2 is characterized in that: hard conductor contacts with moving contact, and moving contact can rotate relative to hard conductor.
5. multibreak moulded case circuit breaker according to claim 1 is characterized in that: when passing through conductor connection between two groups of adjacent moving contacts, the circuit breaker leading-out terminal is drawn on fixed contact; After being connected by conductor between one group of moving contact and the adjacent one group of pairing fixed contact of moving contact, leading-out terminal is being drawn in the moving contact back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020586389 CN201829430U (en) | 2010-10-20 | 2010-10-20 | Multi-break plastic-shell type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020586389 CN201829430U (en) | 2010-10-20 | 2010-10-20 | Multi-break plastic-shell type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829430U true CN201829430U (en) | 2011-05-11 |
Family
ID=43967950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020586389 Expired - Lifetime CN201829430U (en) | 2010-10-20 | 2010-10-20 | Multi-break plastic-shell type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829430U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456515A (en) * | 2010-10-20 | 2012-05-16 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| WO2018006770A1 (en) * | 2016-07-06 | 2018-01-11 | 上海电科电器科技有限公司 | Conductive loop of circuit breaker |
| CN107799367A (en) * | 2017-11-01 | 2018-03-13 | 常熟瑞特电气股份有限公司 | A kind of breaker dual-breakpoint multiple-piece moving contact |
| US10026578B2 (en) | 2014-05-16 | 2018-07-17 | Beijing People's Electric Plant Co., Ltd. | Breaker facilitating rapid movement and elongation of arc |
-
2010
- 2010-10-20 CN CN 201020586389 patent/CN201829430U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456515A (en) * | 2010-10-20 | 2012-05-16 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| CN102456515B (en) * | 2010-10-20 | 2014-09-24 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| US10026578B2 (en) | 2014-05-16 | 2018-07-17 | Beijing People's Electric Plant Co., Ltd. | Breaker facilitating rapid movement and elongation of arc |
| WO2018006770A1 (en) * | 2016-07-06 | 2018-01-11 | 上海电科电器科技有限公司 | Conductive loop of circuit breaker |
| CN107799367A (en) * | 2017-11-01 | 2018-03-13 | 常熟瑞特电气股份有限公司 | A kind of breaker dual-breakpoint multiple-piece moving contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20140924 |
|
| RGAV | Abandon patent right to avoid regrant |