CN103065821A - Contact terminal mechanism of automatic change-over switch - Google Patents
Contact terminal mechanism of automatic change-over switch Download PDFInfo
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- CN103065821A CN103065821A CN2012105829731A CN201210582973A CN103065821A CN 103065821 A CN103065821 A CN 103065821A CN 2012105829731 A CN2012105829731 A CN 2012105829731A CN 201210582973 A CN201210582973 A CN 201210582973A CN 103065821 A CN103065821 A CN 103065821A
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- moving contact
- flexible coupling
- contact
- automatic change
- contact terminals
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Abstract
The invention discloses a contact terminal mechanism of an automatic change-over switch, and belongs to the technical field of low-voltage apparatus. The contact terminal mechanism of the automatic change-over switch comprises a group of a first moving contact terminals, a group of a second moving contact terminals, a group of soft connections and a load amphenol connector. The contact terminal mechanism of the automatic change-over switch is characterized in that one ends of the soft connections are connected with the first moving contact terminals, wherein the ends of the soft connections are towards the first moving contact terminals. The other ends of the soft connections are connected with the second moving contact terminals, wherein the ends of the soft connections are towards the second moving contact terminals. The middle of the soft connections is connected with the end face of one end of the load amphenol connector, wherein the end of the load amphenol connector is towards the soft connections. The contact terminal mechanism of the automatic change-over switch is simple in structure, low in connection joints, convenient to manufacture, cost-saving, simple in manufacture craft, convenient to manufacture and accurate in size. Degree of tightness of the soft connections can be guaranteed, and the purposes of stabilization consistency of electro-dynamic repulsion force compensation, installation positioning of the moving contact terminals and a moving contact terminal support and close in place of the moving and static contact terminals are achieved. The sizes of the soft connections can be shortened, the distances between the contact terminals can be closer, thickness of two sintering zones of at least two soft connections can be reduced, and therefore whole size of the automatic change-over switch can be reduced.
Description
Technical field
The invention belongs to the low voltage electrical apparatus technology field, be specifically related to a kind of contact mechanism of automatic change-over
Background technology
As is known in the industry, the effect of automatic change-over is for the monitoring power circuit, and one or several load circuit is converted to another power supply (such as stand-by power supply automatically from a power supply (such as the externally fed power supply), the self-generating power source of stand-by power supply such as electricity consumption department), to realize uninterrupted power supply.Known and automatic change-over that generally use at present comprises contact mechanism, the galvanic circle, arc quenching system, operating mechanism and controller, wherein: the structure of contact mechanism is comprised being arranged in the pedestal and one group of first fixed contact 5 that be positioned at pedestal one end by shown in Figure 5, be arranged on equally and one group second fixed contact 6 that be positioned at the pedestal other end that equate with the first fixed contact 5 quantity in the pedestal, one group of first that match with the first fixed contact 5 and quantity equates with the first fixed contact 5 moving contact 1, one group of second that match with the second fixed contact 6 and quantity equates with the second fixed contact 6 moving contact 2, one load outlet terminal 4 and a group of being connected between the first moving contact 1 and the load outlet terminal 4 and between the second moving contact 2 and the load outlet terminal 4 are flexible coupling 3.By structure shown in Figure 5 as can be known, one group is flexible coupling and 3 respectively comprises one first section of being flexible coupling 31 and one second section of being flexible coupling 32, one end of the first section of being flexible coupling 31 is connected with the first connecting portion 11 of the first moving contact 1, and the other end is fixedly connected with described load wiring terminal 4, one end of the second section of being flexible coupling 32 is fixedly connected with load wiring terminal 4, and the other end is connected with the second connecting portion 21 of the second moving contact 2.
The contact mechanism of said structure is the shortcoming on the existence form not only, but also there is substantial defective, with regard to pro forma shortcoming, because first, the second moving contact 1,2 respectively by first, the second section of being flexible coupling 31,32 are electrically connected with load outlet terminal 4, therefore structure is comparatively complicated, make loaded down with trivial details and the increase manufacturing cost, because need to have two solder joints realize the first sections of being flexible coupling 31 respectively with the first moving contact 1 and load outlet terminal 4 between be electrically connected, equally, the second section of being flexible coupling 32 respectively with load outlet terminal 4 and the second moving contact 2 between be electrically connected.The defective of so-called real mass is: the tightness of the second section of being flexible coupling 32 between the tightness of the first section of being flexible coupling 31 between the first moving contact 1 and the load outlet terminal 4 and the second moving contact 2 and the load outlet terminal 4 is to have certain requirements, and as shown in Figure 5 and take the situation of the first moving contact 1 and the first fixed contact 5 as example, when the first moving contact 1 and the first fixed contact 5 closure, electric current flows through first and moves, fixed contact 1,5, on the first section of being flexible coupling 31 and the first moving contact 1, all can produce electrodynamic repulsion force, the electrodynamic repulsion force F that produces in the first section of being flexible coupling 31 can make the first section of being flexible coupling 31 that motion upwards occurs, electrodynamic repulsion force in 1 generation of the first moving contact, the first moving contact 1 is rotated to the direction away from the first fixed contact 5, at this moment, often wish that the first section of being flexible coupling 31 possesses certain tensile force, so that the first section of being flexible coupling 31 can only be bent upwards certain distance under the effect of electrodynamic repulsion force, thereby the first connecting portion 11 at the first section of being flexible coupling 31 and the first moving contact 1 produces certain crooked first section of being flexible coupling, 31 meetings to pulling force of the first moving contact 1 generation, the direction of pulling force is for making progress along the tangential direction that produces the first crooked section of being flexible coupling 31, this pulling force is incited somebody to action so that the first moving contact 1 counterclockwise rotates around its fulcrum 12 on the contact supporting (not shown), thereby electrodynamic repulsion force is compensated in the effect that the first moving contact 1 produces, and one group of first moving contact 1 and one group of second moving contact 2 respectively by separately first, the second section of being flexible coupling 31,32 structures that are electrically connected with load outlet terminal 4, be difficult to guarantee that one group of first section of being flexible coupling 31 and one group of second section of being flexible coupling 32 needed tightness are consistent, therefore be difficult to realize the stable and consistent of electrodynamic repulsion force compensation.
In addition, the moving contact of the contact mechanism of said structure, be flexible coupling, weld behind the location that the welding manner of load outlet terminal must carry out first one group of moving contact and load outlet terminal, carry out again after finishing welding behind another location of organizing moving contact and load outlet terminal, so cause to locate two groups of distances between the moving contact upper contact.As the industry's knowledge of the reason, the multiple bearing of parts in manufacture process is to be difficult to guarantee the conforming of manufacturing parts, so under such manufacture, easily make the welding position of load outlet terminal both sides that deviation occurs, cause moving contact to arrive the distance of load outlet terminal not identical, may cause and be difficult to install the location between moving contact and the moving contact rack, perhaps assemble the contact supporting of moving contact and pedestal finish the location is installed after, when moving contact carries out closure by the driving of contact supporting and fixed contact 6, because moving contact is too short and so that moving contact can't move to and the complete position of closure of fixed contact to the distance of load outlet terminal.
Moreover, the conduction of the inner usefulness of device for switching is flexible coupling and is generally all made by the copper soft whipping wire, all need sintering at the two ends cut-off part that is flexible coupling, and the sintering place is used for having certain hardness with the welding of moving contact or load outlet terminal, particularly the sintering place is not flexible with copper soft whipping wire phase transition portion yet, so in order to guarantee that moving contact closes, the correctness of rotational angle during separating brake, being flexible coupling to have enough pliabilitys, and too short being flexible coupling obviously is to be unfavorable for that moving contact closes, the rotational action of separating brake, therefore two groups of moving contacts of prior art can't be realized the miniaturization of automatic transfer switching electric appliance moving contact by the different structures that are connected with face terminals respectively of being flexible coupling, and cause realizing the miniaturization of automatic transfer switching electric appliance integral body.
In view of above-mentioned prior art, be necessary in addition rational modification, the applicant has done useful design for this reason, has formed technical scheme described below
Summary of the invention
The object of the present invention is to provide a kind of contact mechanism of automatic change-over, can embody simple in structurely, easily manufactured, reduce processing step, and can economical with materials and use the reduction cost; Can correctly locate two groups of distances between the moving contact upper contact, the tightness that assurance is flexible coupling realizes that the installation location of stable and consistent, moving contact and contact supporting that electrodynamic repulsion force compensates and the closure of dynamic/static contact put in place; Simultaneously, in the situation of the same revolution length that is flexible coupling of needs, can realize that two groups of distances between the moving contact are the shortest, realize the miniaturization of automatic change-over.
The objective of the invention is to reach like this, a kind of contact mechanism of automatic change-over, comprise that the second moving contact that one group of first moving contact, one group of quantity equates with the quantity of the first moving contact, one group are flexible coupling and a load wiring terminal, it is characterized in that: a described end that is flexible coupling towards the first moving contact is connected with described the first moving contact, an end that is flexible coupling towards described the second moving contact is connected with the second moving contact, and the middle part that is flexible coupling is connected with the end face of described load wiring terminal towards an end that is flexible coupling.
In a specific embodiment of the present invention, towards the end face formation of a described described end that is flexible coupling one group of groove is arranged at described load wiring terminal, the described welding that is flexible coupling is positioned in the described groove.
In another specific embodiment of the present invention, the quantity of described groove equates with the described quantity that is flexible coupling.
In another specific embodiment of the present invention, the described quantity that is flexible coupling is the integral multiple of the quantity of described groove.
Technical scheme provided by the invention is owing to adopting the middle part that will be flexible coupling again after the same connection that is flexible coupling to be connected with the load outlet terminal between the first moving contact and the second moving contact, thereby realize being connected of the first moving contact and load outlet terminal and the second moving contact and load outlet terminal, therefore simple in structure, tie point is less, can remove unnecessary waste of material from, easily manufactured, save manufacturing cost; Because the location that can once finish first, second moving contact and load outlet terminal, just once weld again and can finish, not only manufacturing process is simple and convenient, and the parts consistency after making like this is higher, size is more accurate, can locate at an easy rate two groups of distances between the contact upper contact, thereby can guarantee the tightness that is flexible coupling, realize that the installation location of stable and consistent, moving contact and contact supporting of electrodynamic repulsion force compensation and the closure of dynamic/static contact put in place; Moreover, the end face that sintering stage can be welded on the load outlet terminal is on its cross section, with respect to prior art sintering stage was welded on for being connected of the two rear flank bendings of load outlet terminal and moving contact, can shorten the size that is flexible coupling, make the distance trend between contact nearer, can dwindle at least the thickness of two two sintering zones that are flexible coupling, thus the overall volume that can dwindle automatic change-over.
Description of drawings
Fig. 1 is the embodiments of the invention structure chart.
Fig. 2 is that Fig. 1 structure and contact supporting are finished the schematic diagram of installing after locating.
Fig. 3 a is the first example structure figure of load outlet terminal.
Fig. 3 b is the second example structure figure of load wiring terminal.
The schematic diagram that Fig. 4 matches with first, second fixed contact respectively for first, second moving contact.
Fig. 5 is the schematic diagram of the contact mechanism of the automatic change-over in the prior art.
Embodiment
See also Fig. 1, one group of second moving contact 2 that the contact mechanism of automatic change-over includes one group of first moving contact 1, equates with the quantity of the first moving contact 1, one group of 3 and one load outlet terminal 4 that is flexible coupling, be flexible coupling 3 middle part and load outlet terminal 4 is welded to connect towards the end face 41 of 3 the end of being flexible coupling, 3 an end and the first moving contacts 1 towards the first moving contact 1 that are flexible coupling are welded to connect, and 3 an end and the second moving contacts 2 towards the second moving contact 2 that are flexible coupling are welded to connect.Of the present invention be flexible coupling 3 be the special soft whipping wire of copper.
Ask for an interview Fig. 2, adopt same between the first moving contact 1 and the second moving contact 2 and be flexible coupling 3.Distance between the first moving contact 1 and the second moving contact 2 upper contacts can rely on 3 the length of being flexible coupling to position, be flexible coupling 3 middle part when being connected with the end face 41 of load outlet terminal 4, first, second moving contact 1 of also can easily having good positioning, 2 and load outlet terminal 4 between distance.In Fig. 2, also show one group of first moving contact 1 and one group of second moving contact 2 pivot are arranged at situation on the contact supporting 7.
Ask for an interview Fig. 3 a and Fig. 3 b, welding for the ease of the end face 41 of be flexible coupling 3 middle parts and load outlet terminal 4, (Fig. 3 a) except direct employing plane at the solder side place of the end face 41 of load outlet terminal 4, such as Fig. 3 b, also can establish groove 411 at end face 41, the quantity that is flexible coupling is the multiple of groove 411 quantity, the first moving contact 1 of the present invention comprises six contacts, therefore the second moving contact 2 also comprises six contacts, is used for connecting being flexible coupling of the first moving contact 1 and the second moving contact 2 and 3 also comprises the six roots of sensation bar that is flexible coupling.Such as Fig. 3 b, end face 41 is provided with three grooves 411, the be flexible coupling middle part of bar of the above-mentioned six roots of sensation is welded in each groove 411 in twos, certainly, groove 411 of the present invention also can be two, when two grooves 411, be flexible coupling per three middle part of bar of the so above-mentioned six roots of sensation is welded in each groove 411, the contact of the first moving contact 1 and the second moving contact 2 is different and different according to the current class of automatic change-over, can be four and also can be eight, 3 the quantity of being flexible coupling can change according to the quantity of contact equally, and so, the quantity of groove 411 also will change thereupon.
Ask for an interview Fig. 4, the first moving contact 1 and the second moving contact 2 can relatively rotate in the scope of the radius of gyration take the distance to load outlet terminal 4 separately, to realize separating brake and the combined floodgate with the first fixed contact 5 and the second fixed contact 6.
The moving contact of automatic change-over of the present invention is because simple in structure, and tie point is less, can remove unnecessary waste of material from, and is easily manufactured, saves manufacturing cost.The more important thing is, can once finish the location of two groups of moving contacts and load outlet terminal, just once weld again and can finish, not only manufacturing process is simple and convenient, and the parts consistency after making like this is higher, and size is more accurate, can locate at an easy rate two groups of distances between the contact upper contact, thereby can guarantee the tightness that is flexible coupling, realize that the installation location of stable and consistent, moving contact and contact supporting 8 of electrodynamic repulsion force compensation and the closure of dynamic/static contact put in place; Moreover, the end face 41 that sintering stage can be welded on load outlet terminal 4 is on its cross section, relatively with prior art sintering stage is welded on be connected (such as Fig. 5) of 4 liang of rear flank bendings of load outlet terminal and moving contact, can shorten the size that is flexible coupling, make the distance trend between contact nearer, can dwindle at least the thickness of two two sintering zones that are flexible coupling, like this, also just can dwindle the overall volume of switching device
Claims (4)
1.
A kind of contact mechanism of automatic change-over, comprise one group of first moving contact (1), one group of second moving contact (2) that quantity equates with the quantity of the first moving contact 1, one group is flexible coupling (3) and a load wiring terminal (4), it is characterized in that: described be flexible coupling (3) are connected with described the first moving contact (1) towards an end of the first moving contact (1), be flexible coupling (3) be connected with the second moving contact (2) towards an end of described the second moving contact (2), and the middle part that is flexible coupling is connected with the end face (41) of described load wiring terminal (4) towards an end of be flexible coupling (3).
2.
The contact mechanism of automatic change-over according to claim 1, it is characterized in that towards end face (41) formation of a described end of described be flexible coupling (3) one group of groove (411) being arranged at described load wiring terminal (4), described (3) welding that is flexible coupling is positioned in the described groove (411).
3.
The contact mechanism of automatic change-over according to claim 1 is characterized in that the quantity of described groove (411) equates with the described quantity that is flexible coupling (3).
4.
The contact mechanism of automatic change-over according to claim 2, the quantity that it is characterized in that described be flexible coupling (3) are the integral multiple of the quantity of described groove (411)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105829731A CN103065821A (en) | 2012-12-28 | 2012-12-28 | Contact terminal mechanism of automatic change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105829731A CN103065821A (en) | 2012-12-28 | 2012-12-28 | Contact terminal mechanism of automatic change-over switch |
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| Publication Number | Publication Date |
|---|---|
| CN103065821A true CN103065821A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105829731A Pending CN103065821A (en) | 2012-12-28 | 2012-12-28 | Contact terminal mechanism of automatic change-over switch |
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| CN (1) | CN103065821A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3536112A1 (en) * | 1985-10-07 | 1987-04-09 | Siemens Ag | CONTACT ARRANGEMENT FOR LOW VOLTAGE CIRCUIT BREAKERS WITH A BENDING ELECTRIC STRIP |
| CN1647330A (en) * | 2002-04-12 | 2005-07-27 | 阿布服务公司 | Element for connecting a flexible conductor and method for connecting a flexible conductor to a connection terminal |
| CN2891241Y (en) * | 2005-12-21 | 2007-04-18 | 宁波奇乐电器实业总公司 | Three-position type manual actuating mechanism for automatic switch unit |
| CN201130600Y (en) * | 2007-12-07 | 2008-10-08 | 宁波奇乐电器实业总公司 | Contact apparatus of high-capacity automatic change-over switch electric apparatus |
| CN201804782U (en) * | 2009-12-16 | 2011-04-20 | 天水西星电气有限责任公司 | AC contactor |
| CN202025686U (en) * | 2011-05-17 | 2011-11-02 | 常安集团有限公司 | Frame-type breaker |
| CN202443868U (en) * | 2012-02-29 | 2012-09-19 | 环宇集团有限公司 | Dual-power automatic transfer switch |
| CN202977187U (en) * | 2012-12-28 | 2013-06-05 | 常熟开关制造有限公司(原常熟开关厂） | Contact mechanism of automatic transfer switch |
-
2012
- 2012-12-28 CN CN2012105829731A patent/CN103065821A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3536112A1 (en) * | 1985-10-07 | 1987-04-09 | Siemens Ag | CONTACT ARRANGEMENT FOR LOW VOLTAGE CIRCUIT BREAKERS WITH A BENDING ELECTRIC STRIP |
| CN1647330A (en) * | 2002-04-12 | 2005-07-27 | 阿布服务公司 | Element for connecting a flexible conductor and method for connecting a flexible conductor to a connection terminal |
| CN2891241Y (en) * | 2005-12-21 | 2007-04-18 | 宁波奇乐电器实业总公司 | Three-position type manual actuating mechanism for automatic switch unit |
| CN201130600Y (en) * | 2007-12-07 | 2008-10-08 | 宁波奇乐电器实业总公司 | Contact apparatus of high-capacity automatic change-over switch electric apparatus |
| CN201804782U (en) * | 2009-12-16 | 2011-04-20 | 天水西星电气有限责任公司 | AC contactor |
| CN202025686U (en) * | 2011-05-17 | 2011-11-02 | 常安集团有限公司 | Frame-type breaker |
| CN202443868U (en) * | 2012-02-29 | 2012-09-19 | 环宇集团有限公司 | Dual-power automatic transfer switch |
| CN202977187U (en) * | 2012-12-28 | 2013-06-05 | 常熟开关制造有限公司(原常熟开关厂） | Contact mechanism of automatic transfer switch |
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Application publication date: 20130424 |