CN100517534C - Contact system capable of automatically change-over switching electric appliance - Google Patents
Contact system capable of automatically change-over switching electric appliance Download PDFInfo
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- CN100517534C CN100517534C CNB200710059760XA CN200710059760A CN100517534C CN 100517534 C CN100517534 C CN 100517534C CN B200710059760X A CNB200710059760X A CN B200710059760XA CN 200710059760 A CN200710059760 A CN 200710059760A CN 100517534 C CN100517534 C CN 100517534C
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Abstract
The utility model relates to a contact system of an electrical appliance with an automatic shift switch, which consists of a shell, a moving contact component, a static contact component and an interrupter. A side of the shell is sunken and forms a setting hole with a moving contact component and a component setting hole with a static contact; the two ends of the moving contact component form the moving contact with a finger-shaped assembling type and the static contact with a knife-shaped plug-type; the static contact component consists of two finger-shaped assembling type static contacts and two static contacts with knife-shaped plug-type; the interrupter is arranged between two static contacts with finger-shaped assembling type and the moving contact with finger-shaped assembling type. The invention provides the contact system of automatic switch electrical appliance which integrates the traditional finger-shaped assembling type contact with knife-shaped plug-type contact together. The invention uses the integration of the finger-shaped assembling type contact and the interrupter to reach a higher requirement of connecting capacity and breaking capacity. Besides, the invention can use a mutual compensation of the repulsion force of the crunode of the finger-shaped assembling type contact and the electrical suction of the crunode of the knife-shaped plug-type contact, so as to improve the short circuit resistance capacity of the switch electrical appliance.
Description
Technical field
The present invention relates to a kind of automatic transfer switching electric appliance, particularly relate to a kind of contact system of automatic transfer switching electric appliance.
Background technology
The effect of automatic transfer switching electric appliance is to be used to monitor power circuit, and one or several load circuit can be converted to another power supply automatically from a power supply, be typically provided with motor or electromagnet and contact system on it, and this device for switching product of the standard-required of product should have higher connection and breaking capacity and short circuit withstand capacity as power source.At present, contact commonly used mainly is divided into the finger type clapper-type contact that is used in the low-voltage circuit breaker more and is used for cutter type plug-in type contact in the low pressure isolating switch more on the automatic transfer switching electric appliance.Wherein, the contact of welding on the finger type clapper-type contact is to adopt Pd-Ag substrate alloy material to make, therefore can resist under its arcing when closure or open circuit and burn, so have higher connection and breaking capacity, but because the node electric power of this contact is the repulsion type, be subjected to the restriction of this factor, moving, the poor heat stability of contact, thereby contact can be scolded and held under higher short time withstand current effect, so just is difficult to reach the requirement of the short circuit withstand capacity of standard code.Because the node electric power of cutter type plug-in type contact is attractive, it is moving, thermal stability is high, therefore can reach higher tolerance index in short-term, but because contact adopts contactless design, therefore this contact can not burn by arc resistant when closure or open circuit, so just is difficult to reach the requirement of higher connection and breaking capacity.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of contact system that has the automatic transfer switching electric appliance of higher connection and breaking capacity and short circuit withstand capacity simultaneously.
In order to achieve the above object, the contact system of automatic transfer switching electric appliance provided by the invention comprises shell, moving contact component, fixed contact assembly and arc control device; Wherein shell is flat cuboid, and centre, one side has been recessed to form a moving contact component hole is set, and the two ends of this side are recessed to form and with moving contact component first, second fixed contact assembly that the hole is connected are set the hole is set simultaneously; The centre of moving contact component is run through and is formed with and can links to each other with the output shaft of power source, thereby the centre bore that it is rotated in moving contact component is provided with the hole, its two ends are protruded respectively and are formed with one and can at first, second fixed contact assembly finger type clapper-type moving contact and the cutter type plug-in type moving contact that comes back rotation in the hole be set respectively, and both sides then are hinged on the edge that moving contact component is provided with the hole by two springs that are connected with each other and support; The fixed contact assembly is arranged on the first fixed contact assembly by two standoff distances and the finger type clapper-type fixed contact in the hole is set and is arranged on the second fixed contact assembly and be provided with in the hole and by two cutter type plug-in type fixed contacts that connecting plate is connected with each other and constitute; Arc control device then are installed in two finger type clapper-type fixed contacts and refer between the type clapper-type moving contact.
Finger type clapper-type moving contact and cutter type plug-in type moving contact differ 180 on the described moving contact component
The front end of described finger type clapper-type moving contact adopts and is welded with the contact that Pd-Ag substrate alloy material is made.
The front end of described finger type clapper-type fixed contact adopts and is welded with the contact that Pd-Ag substrate alloy material is made.
The contact system of automatic transfer switching electric appliance provided by the invention is that traditional finger type clapper-type contact and cutter type plug-in type contact are combined, it can utilize the finger type clapper-type contact on it to reach the higher connection and the requirement of breaking capacity in conjunction with arc control device, and can utilize the mutual compensation of the electronic suction of node of the node electrodynamic repulsion force that refers to type clapper-type contact and cutter type plug-in type contact to improve the short circuit withstand capacity of device for switching.
Description of drawings
Fig. 1 is that the contact system of automatic transfer switching electric appliance provided by the invention is connected structural perspective when using power supply always.
Forward structure schematic diagram when Fig. 2 does not install the arc extinguishing grid pieces chamber for the contact system of the automatic transfer switching electric appliance shown in Fig. 1.
Fig. 3 is converted to forward structure schematic diagram the stand-by power supply process for the contact system of the automatic transfer switching electric appliance shown in Fig. 1 automatically from power supply commonly used.
Structural representation when Fig. 4 does not install shell and is converted to stand-by power supply for the contact system of the automatic transfer switching electric appliance shown in Fig. 1.
Fig. 5 is moving contact component structural representation in the contact system of the automatic transfer switching electric appliance shown in Fig. 1.
Fig. 6 is part fixed contact modular construction schematic diagram in the contact system of the automatic transfer switching electric appliance shown in Fig. 1.
Embodiment
Be elaborated below in conjunction with the contact system of the drawings and specific embodiments to automatic transfer switching electric appliance provided by the invention.
As Fig. 1～shown in Figure 6, the contact system of automatic transfer switching electric appliance provided by the invention comprises shell 1, moving contact component 2, fixed contact assembly 3 and arc control device 4; Wherein shell 1 is flat cuboid, and centre, one side has been recessed to form a moving contact component hole 5 is set, and the two ends of this side are recessed to form and with moving contact component first, second fixed contact assembly that hole 5 is connected are set hole 6,6 ' is set simultaneously; The centre of moving contact component 3 is run through and is formed with and can links to each other with the output shaft of power source, thereby can make its centre bore that in moving contact component is provided with hole 5, rotates 7, its two ends are protruded respectively and are formed with one and can at first, second fixed contact assembly hole 6 be set respectively, come the finger type clapper-type moving contact 8 and the cutter type plug-in type moving contact 9 of back rotation in 6 ', both sides then are hinged on the edge that moving contact component is provided with hole 5 by two springs that are connected with each other 10 and support 11; Fixed contact assembly 3 is arranged on the first fixed contact assembly by two standoff distances and the finger type clapper-type fixed contact 12 in the hole 6 is set and is arranged on the second fixed contact assembly and be provided with in the hole 6 ' and by two cutter type plug-in type fixed contacts 13 that connecting plate is connected with each other and constitute; 4 of arc control device are installed in two finger type clapper-type fixed contacts 12 and refer between the type clapper-type moving contact 8.
Finger type clapper-type moving contact 8 and cutter type plug-in type moving contact 9 differ 180 ° on the described moving contact component 2.
The front end of described finger type clapper-type moving contact 8 adopts and is welded with the contact that Pd-Ag substrate alloy material is made.
The front end of described finger type clapper-type fixed contact 12 adopts and is welded with the contact that Pd-Ag substrate alloy material is made.
When the contact system of automatic transfer switching electric appliance provided by the invention is in state commonly used, promptly connect when using power supply always, as shown in Figure 2, the finger type clapper-type moving contact 8 on the moving contact component 2 and cutter type plug-in type moving contact 9 respectively with fixed contact assembly 3 on a relative finger type clapper-type fixed contact 12 and a cutter type plug-in type fixed contact 13 contact.When needs are converted to stand-by power supply with load circuit automatically from using power supply always, under the drive of power source on the automatic transfer switching electric appliance, moving contact component 2 beginnings are rotated along clockwise direction, at first contact of finger type clapper-type moving contact 8 will be separated with the contact of finger type clapper-type fixed contact 12 and circuit be disconnected on it, though can produce electric arc on finger type clapper-type moving contact 8 in this moment burns, but be welded with the contact that Pd-Ag substrate alloy material is made because the front end of the front end of finger type clapper-type moving contact 8 and finger type clapper-type fixed contact 12 adopts, therefore under the effect of arc control device 4, can disconnect electric arc rapidly.Cutter type plug-in type moving contact 9 disconnects under the condition that circuit has disconnected afterwards.Through after the process shown in Figure 3, as shown in Figure 4, at first cutter type plug-in type moving contact 9 is closed mutually with another corresponding cutter type plug-in type fixed contact 13, at this moment, because finger type clapper-type moving contact 8 is not closed, therefore can not produce electric arc on the cutter type plug-in type moving contact 9, finger type clapper-type moving contact 8 is closed and stand-by power supply is connected afterwards.Because the front end of finger type clapper-type moving contact 8 and the front end of finger type clapper-type fixed contact 12 adopt and are welded with the contact that Pd-Ag substrate alloy material is made, but therefore arc resistant burns.
Claims (4)
1, a kind of contact system of automatic transfer switching electric appliance is characterized in that: the contact system of described automatic transfer switching electric appliance comprises shell (1), moving contact component (2), fixed contact assembly (3) and arc control device (4); Wherein shell (1) is flat cuboid, centre, one side has been recessed to form a moving contact component hole (5) has been set, the two ends of this side are recessed to form and with moving contact component first, second fixed contact assembly that hole (5) is connected are set hole (6,6 ') is set simultaneously; The centre of moving contact component (3) is run through and is formed with and can links to each other with the output shaft of power source, thereby the centre bore (7) that it is rotated in moving contact component is provided with hole (5), its two ends are protruded respectively and are formed with one and can at first, second fixed contact assembly hole (6 be set respectively, 6 ') come the finger type clapper-type moving contact (8) and the cutter type plug-in type moving contact (9) of back rotation in, both sides then are hinged on the edge that moving contact component is provided with hole (5) by two springs that are connected with each other (10) and support (11); Fixed contact assembly (3) is arranged on two cutter type plug-in type fixed contacts (13) formation that the first fixed contact assembly is provided with the finger type clapper-type fixed contact (12) in the hole (6) and is arranged on that the second fixed contact assembly is provided with in the hole (6 ') and is connected with each other by connecting plate by two standoff distances; Arc control device (4) then are installed in two finger type clapper-type fixed contacts (12) and refer between the type clapper-type moving contact (8).
2, the contact system of automatic transfer switching electric appliance according to claim 1 is characterized in that: described moving contact component (2) upward finger type clapper-type moving contact (8) and cutter type plug-in type moving contact (9) differs 180 °.
3, the contact system of automatic transfer switching electric appliance according to claim 2 is characterized in that: the front end of described finger type clapper-type moving contact (8) adopts and is welded with the contact that Pd-Ag substrate alloy material is made.
4, the contact system of automatic transfer switching electric appliance according to claim 2 is characterized in that: the front end of described finger type clapper-type fixed contact (12) adopts and is welded with the contact that Pd-Ag substrate alloy material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710059760XA CN100517534C (en) | 2007-09-24 | 2007-09-24 | Contact system capable of automatically change-over switching electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710059760XA CN100517534C (en) | 2007-09-24 | 2007-09-24 | Contact system capable of automatically change-over switching electric appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101178984A CN101178984A (en) | 2008-05-14 |
| CN100517534C true CN100517534C (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710059760XA Active CN100517534C (en) | 2007-09-24 | 2007-09-24 | Contact system capable of automatically change-over switching electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100517534C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409228B (en) * | 2014-11-03 | 2016-07-06 | 贵州泰永长征技术股份有限公司 | A kind of double breaking points moving contact structure of double power supply automatic transfer switch |
| CN104576092B (en) * | 2014-12-22 | 2017-01-25 | 施耐德万高（天津）电气设备有限公司 | Contact mechanism of switching device capable of realizing three states |
| CN107910211A (en) * | 2017-09-19 | 2018-04-13 | 上海电器科学研究所（集团）有限公司 | A kind of bistable operating mechanism and rotary separation switch |
| CN108320923A (en) * | 2018-02-27 | 2018-07-24 | 北京京人电器有限公司 | Switching device |
| CN108364818A (en) * | 2018-04-28 | 2018-08-03 | 广东电网有限责任公司 | A kind of multiple pole single throw switch of horizontal rotation |
| CN108389736B (en) * | 2018-05-09 | 2024-02-13 | 佳一电气有限公司 | Moving contact assembly |
| CN109119259A (en) * | 2018-09-13 | 2019-01-01 | 浙江正泰电器股份有限公司 | Split pole type double power supply automatic transfer switch |
| CN110137000B (en) * | 2019-05-15 | 2021-11-09 | 深圳市泰永电气科技有限公司 | Double-breakpoint change-over switch |
| CN112133584B (en) * | 2020-10-15 | 2023-03-31 | 施耐德万高（天津）电气设备有限公司 | Rotary plug-in contact |
| CN217008985U (en) * | 2022-04-07 | 2022-07-19 | 施耐德电器工业公司 | Arc extinguishing structure and dual power transfer switch |
-
2007
- 2007-09-24 CN CNB200710059760XA patent/CN100517534C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101178984A (en) | 2008-05-14 |
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