CN202977187U - Contact mechanism of automatic transfer switch - Google Patents
Contact mechanism of automatic transfer switch Download PDFInfo
- Publication number
- CN202977187U CN202977187U CN 201220738195 CN201220738195U CN202977187U CN 202977187 U CN202977187 U CN 202977187U CN 201220738195 CN201220738195 CN 201220738195 CN 201220738195 U CN201220738195 U CN 201220738195U CN 202977187 U CN202977187 U CN 202977187U
- Authority
- CN
- China
- Prior art keywords
- moving contact
- flexible coupling
- contact
- soft connection
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
A contact mechanism of an automatic transfer switch belongs to the technical field of low-voltage electrical appliances. The contact mechanism includes a group of first moving contacts, a group of second moving contacts, a group of soft connection elements and a load wiring terminal. The contact mechanism of the automatic transfer switch is characterized in that: one end of each soft connection element, which faces the first moving contacts, is connected the first moving contacts; one end of each soft connection element, which faces the second moving contacts, is connected with the second moving contacts; and the middle portion of the group of soft connection elements is connected with an end surface of one end of the load wiring terminal, wherein the end of the load wiring terminal faces the soft connection elements. The contact mechanism of the automatic transfer switch is advantageous in simple structure, fewer connecting points, convenient manufacture, a cost-saving property, simple and convenient manufacturing technique and accurate size; with the contact mechanism adopted, the tightness of the soft connection elements can be ensured, and the stability and consistency of electro-dynamic repulsion force compensation, the installation and positioning of the movable contacts and a contact support, and in-place closure of the moving contacts and fixed contacts can be realized; the size of the soft connection elements can be reduced, such that the distance between the contacts is smaller; at least the thickness of two sintering zones of two soft connection elements can be reduced, and therefore, the overall dimension of the automatic transfer switch can be decreased.
Description
Technical field
the utility model belongs to the low voltage electrical apparatus technology field, is 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 monitoring power circuit, and one or several load circuit is converted to another power supply (as stand-by power supply automatically from a power supply (as the externally fed power supply), stand-by power supply is as the self-generating power source of electricity consumption department), to realize uninterrupted power supply.Known and automatic change-over that generally use at present comprises contact mechanism, galvanic circle, arc quenching system, operating mechanism and controller, wherein: the structure of contact mechanism as shown in Figure 5, comprise and be arranged in pedestal and one group of first fixed contact 5 that be positioned at pedestal one end, 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 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 load outlet terminal 4 and between the second moving contact 2 and load outlet terminal 4 are flexible coupling 3.Structure as shown in Figure 5 is 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 existence form not only, but also there is substantial defect, with regard to pro forma shortcoming, due to first, the second moving contact 1, 2 respectively by first, the second section of being flexible coupling 31, 32 are electrically connected to load outlet terminal 4, therefore structure is comparatively complicated, manufacture loaded down with trivial details and increase manufacturing cost, because need to have two solder joints realize the first section of being flexible coupling 31 respectively with the first moving contact 1 and load outlet terminal 4 between be electrically connected to, 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 to.The defect 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 load outlet terminal 4 and the second moving contact 2 and load outlet terminal 4 is to have certain requirements, and as shown in Figure 5 and to take the situation of the first moving contact 1 and the first fixed contact 5 be 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, all can produce electrodynamic repulsion force on the first section of being flexible coupling 31 and the first moving contact 1, the electrodynamic repulsion force F produced on the first section of being flexible coupling 31 can make the first section of being flexible coupling 31 that motion upwards occurs, the electrodynamic repulsion force produced on the first moving contact 1, can make the first moving contact 1 rotate 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, make the first section of being flexible coupling 31 can only be bent upwards certain distance under the effect of electrodynamic repulsion force, thereby produce certain the first crooked section of being flexible coupling 31 and can produce a pulling force to the first moving contact 1 on the first connecting portion 11 of the first section of being flexible coupling 31 and the first moving contact 1, the direction of pulling force makes progress for the tangential direction along producing the first crooked section of being flexible coupling 31, this pulling force will make the first moving contact 1, and around it, the fulcrum on the contact supporting (not shown) 12 counterclockwise rotates, thereby the effect that electrodynamic repulsion force is produced on the first moving contact 1 compensates, 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 to load outlet terminal 4, be difficult to guarantee that one group of first section of being flexible coupling 31 and one group of second needed tightness of the section of being flexible coupling 32 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, welded behind location that the welding manner of load outlet terminal must first carry out one group of moving contact and load outlet terminal, after completing, carry out again being welded behind another location of organizing moving contact and load outlet terminal, so cause locating 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 arrive the load outlet terminal the distance not identical, may cause between moving contact and moving contact rack and be difficult to install location, after perhaps assembling the contact supporting of moving contact and pedestal and completing location is installed, when moving contact carries out closure by the driving of contact supporting and fixed contact 6, because moving contact can't move to the position fully closed with fixed contact to the too short moving contact that makes of the distance of load outlet terminal.
moreover, the conduction of the inner use 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 be flexible coupling, and the sintering place is 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, be flexible coupling enough pliabilitys must be arranged, and too short being flexible coupling is obviously to be unfavorable for that moving contact closes, the rotation 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, cause realizing the miniaturization of automatic transfer switching electric appliance integral body.
in view of above-mentioned prior art, be necessary rational modification in addition, the applicant has done useful design for this reason, has formed technical scheme described below.
Summary of the invention
the purpose of this utility model is to provide a kind of contact mechanism of automatic change-over, can embody simple in structurely, easily manufactured, reduces processing step, and can save material and use and reduce costs; Can correctly locate two groups of distances between the moving contact upper contact, guarantee the tightness be flexible coupling, realize 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 that the same revolution length that is flexible coupling of needs can realize that the distance between two groups of moving contacts is the shortest, realize the miniaturization of automatic change-over.
the purpose of this utility model reaches 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: the described end be flexible coupling towards the first moving contact is connected with described the first moving contact, the end be flexible coupling towards described the second moving contact is connected with the second moving contact, and the middle part be flexible coupling is connected with the end face of described load wiring terminal towards the end be flexible coupling.
in a specific embodiment of the present utility model, form one group of groove is arranged on the end face of the described described end be flexible coupling at described load wiring terminal, the described welding that is flexible coupling is positioned in described groove.
in another specific embodiment of the present utility model, the quantity of described groove equates with the described quantity be flexible coupling.
in another specific embodiment of the present utility model, the integral multiple of the quantity that the described quantity be flexible coupling is described groove.
the technical scheme that the utility model provides is connected the middle part be flexible coupling after adopting the same connection that is flexible coupling between the first moving contact and the second moving contact again with the load outlet terminal, 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; Due to the location that can once complete first, second moving contact and load outlet terminal, just once weld and can complete again, not only manufacturing process is simple and convenient, and the parts consistency after manufacturing 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 be flexible coupling, realize 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; Moreover, the end face that sintering stage can be welded on to 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 be flexible coupling, make the distance trend between contact nearer, can at least dwindle the thickness of two two sintering zones that are flexible coupling, thus the overall volume that can dwindle automatic change-over.
The accompanying drawing explanation
fig. 1 is example structure figure of the present utility model.
fig. 2 is that Fig. 1 structure and contact supporting complete the schematic diagram of installing after locating.
the first example structure figure that Fig. 3 a is the load outlet terminal.
the second example structure figure that Fig. 3 b is the load wiring terminal.
the schematic diagram that Fig. 4 matches with first, second fixed contact respectively for first, second moving contact.
the schematic diagram of the contact mechanism that Fig. 5 is the automatic change-over in prior art.
Embodiment
refer to 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, be flexible coupling 3 ends towards the first moving contact 1 and the first moving contact 1 is welded to connect, and be flexible coupling 3 ends towards the second moving contact 2 and the second moving contact 2 are welded to connect.Of the present utility modelly be flexible coupling 3 for 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 the end face 41 with load outlet terminal 4 is connected, the distance that also can easily have good positioning between first, second moving contact 1,2 and load outlet terminal 4.Also show in Fig. 2 one group of first moving contact 1 and one group of second moving contact 2 pivot are arranged to the situation on 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, at the solder side place of the end face 41 of load outlet terminal 4, except direct employing plane, (Fig. 3 a), as Fig. 3 b, also can on end face 41, establish groove 411, the quantity be flexible coupling is the multiple of groove 411 quantity, the first moving contact 1 of the present utility model comprises six contacts, therefore the second moving contact 2 also comprises six contacts, 3 also comprises the six roots of sensation bar that is flexible coupling for connecting being flexible coupling of the first moving contact 1 and the second moving contact 2.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 utility model can be also two, when two grooves 411, the be flexible coupling middle part of every three 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 according to the difference of the current class of automatic change-over and difference, four can be and eight can be also, 3 the quantity of being flexible coupling can be changed according to the quantity of contact equally, 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 be take separately and to be relatively rotated in the scope of the radius of gyration to the distance of load outlet terminal 4, to realize and separating brake and the combined floodgate of the first fixed contact 5 and the second fixed contact 6.
the moving contact of automatic change-over of the present utility model is due to simple in structure, and tie point is less, can remove unnecessary waste of material from, easily manufactured, saves manufacturing cost.The more important thing is, can once complete the location of two groups of moving contacts and load outlet terminal, just once weld and can complete again, not only manufacturing process is simple and convenient, and the parts consistency after manufacturing 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 be flexible coupling, realize that the installation location of stable and consistent, moving contact and contact supporting 8 that electrodynamic repulsion force compensates and the closure of dynamic/static contact put in place; Moreover, the end face 41 that sintering stage can be welded on to load outlet terminal 4 is on its cross section, relatively with prior art, sintering stage is welded on to be connected (as Fig. 5) of 4 liang of rear flank bendings of load outlet terminal and moving contact, can shorten the size be flexible coupling, make the distance trend between contact nearer, can at least dwindle 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 that the second moving contact (2) that one group of first moving contact (1), one group of quantity equates with the quantity of the first moving contact 1, one group are 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) towards an end of described the second moving contact (2), with the second moving contact (2), be connected, and the middle part be 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 the upper formation of the end face (41) 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 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 integral multiple of the quantity that the quantity that it is characterized in that described be flexible coupling (3) is described groove (411).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738195 CN202977187U (en) | 2012-12-28 | 2012-12-28 | Contact mechanism of automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738195 CN202977187U (en) | 2012-12-28 | 2012-12-28 | Contact mechanism of automatic transfer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977187U true CN202977187U (en) | 2013-06-05 |
Family
ID=48518231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738195 Expired - Lifetime CN202977187U (en) | 2012-12-28 | 2012-12-28 | Contact mechanism of automatic transfer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977187U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065821A (en) * | 2012-12-28 | 2013-04-24 | 常熟开关制造有限公司(原常熟开关厂） | Contact terminal mechanism of automatic change-over switch |
-
2012
- 2012-12-28 CN CN 201220738195 patent/CN202977187U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065821A (en) * | 2012-12-28 | 2013-04-24 | 常熟开关制造有限公司(原常熟开关厂） | Contact terminal mechanism of automatic change-over switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202977187U (en) | Contact mechanism of automatic transfer switch | |
| CN101819908B (en) | Conducting loop structure of low-voltage circuit breaker | |
| CN204303730U (en) | The structure of contact terminal of air-break and contact system | |
| CN103065821A (en) | Contact terminal mechanism of automatic change-over switch | |
| CN204045888U (en) | Quick electrical connection device | |
| CN201590444U (en) | Battery connector | |
| CN204886491U (en) | Motor power consumption source terminal subassembly and motor that has it | |
| CN204558399U (en) | Novel breaker contact system | |
| CN207947238U (en) | A kind of slide track component for miniature circuit breaker | |
| CN207966871U (en) | A kind of miniature circuit breaker | |
| CN202363379U (en) | Connection structure of molded case circuit breaker | |
| US8323039B2 (en) | Contact element | |
| CN101359798A (en) | Connector with a locking member | |
| CN108010808A (en) | A kind of base for miniature circuit breaker | |
| CN201829438U (en) | Static contact mechanism of circuit breaker | |
| CN104393224B (en) | A kind of bus-bar for supporting battery bag high-power applications | |
| CN201038528Y (en) | Multiple hole position acoustic and video frequency terminal socket | |
| CN103811709B (en) | A kind of cylinder monomer attachment means | |
| CN203800261U (en) | Electrical connector | |
| CN202957192U (en) | Flexible coupling and conductive block fixing structure for low-voltage vacuum circuit breaker | |
| CN110993453B (en) | Conductive connection device and direct current breaker using same | |
| CN201927556U (en) | Connecting line of miniature circuit breaker | |
| CN209119016U (en) | A kind of static contact spring piece component of improved AC contactor | |
| CN102915888B (en) | Circuit arrangement and comprise the withdrawable circuit breaker of this circuit arrangement | |
| CN110068787B (en) | Heavy-current butt-joint mechanism for electric energy meter base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |