CN110970239A

CN110970239A - Automatic transfer switch, dual-power automatic transfer switch and manufacturing method thereof

Info

Publication number: CN110970239A
Application number: CN201811155494.5A
Authority: CN
Inventors: 刘振忠; 曾晓菁
Original assignee: Schneider Electric Industries SAS
Current assignee: Schneider Electric Industries SAS
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2020-04-07
Anticipated expiration: 2038-09-30
Also published as: CN110970239B

Abstract

The invention discloses an automatic change-over switch, comprising: a first switching module and a second switching module respectively including first and second breaking units, first and second drivers, and first and second switching mechanisms, the first or second driver actuating the first or second breaking unit via the first or second switching mechanism to connect and disconnect the load with the first power source or with the second power source; wherein the first breaking unit and the second breaking unit are stacked in a thickness direction of the automatic transfer switch, and further comprising a coupling mechanism disposed at a side of the stacked first breaking unit and second breaking unit for coupling the first switching mechanism and the second switching mechanism to each other to disconnect the load from the other power source before one of the first or second breaking unit connects the load to the corresponding power source. The invention inherits the original performance advantages of the components of the switch module, and has the advantages of small volume, compact structure, high reliability, short development period and the like.

Description

Automatic transfer switch, dual-power automatic transfer switch and manufacturing method thereof

Technical Field

The present invention relates to an automatic transfer switch, and more particularly, to an automatic transfer switch that is modified to be constructed using an existing switch module. The invention also relates to a double-power automatic transfer switch comprising the automatic transfer switch and a manufacturing method thereof.

Background

The derived automatic change-over switch consists of two isolating switches and a set of switch mechanism, and because newly designed parts are few and the execution switch is a mature product, the derived automatic change-over switch has the advantages of short project period, low product cost and the like, and is popular with manufacturers. However, it has the disadvantages of large product volume, more limitation of the switching mechanism due to the need of driving the original switch mechanism, long driving stroke, slow switching time and the like.

The original automatic change-over switch in the prior art has the defects of large volume, long change-over time and the like, because the original execution switch mechanism is reshaped, the required stroke of the original execution switch mechanism is shorter than that of the original switch mechanism, and the power of the motor is lower than that of a derivative type (under the same change-over time requirement).

Therefore, there is a need for a native automatic transfer switch, which has a smaller size and a shorter transfer time than the automatic transfer switch of the prior art and inherits the excellent electromechanical performance of the original execution switch by remodeling the original execution switch module, and which has the advantages of a short project period and a low product cost. There is also a need for a dual power automatic transfer switch and a method of manufacturing the same that addresses the above-mentioned problems.

Disclosure of Invention

The invention aims to adopt the components of a mature switch module and obtain an automatic change-over switch capable of solving the problems through reasonable layout of the components.

According to a first aspect of the present invention, there is provided an automatic transfer switch comprising:

the first switch module can independently execute a switch function and comprises a first breaking unit, a first driver and a first switch mechanism, wherein the first driver actuates the first breaking unit to connect or disconnect a load with or from a first power supply through the first switch mechanism;

the second switch module can independently execute a switch function and comprises a second breaking unit, a second driver and a second switch mechanism, wherein the second driver actuates the second breaking unit to connect or disconnect the load with or from the second power supply through the second switch mechanism;

wherein,

the first breaking unit and the second breaking unit are stacked in a thickness direction of the automatic transfer switch, and the automatic transfer switch further includes a coupling mechanism disposed at a side of the stacked first breaking unit and second breaking unit in a direction perpendicular to the thickness direction for coupling the first switching mechanism and the second switching mechanism to each other to disconnect the load from the other power source before one of the first breaking unit or the second breaking unit connects the load to the corresponding power source.

Preferably, the first switching mechanism and the second switching mechanism are stacked in a thickness direction of the automatic transfer switch with a minimum thickness, and the coupling mechanism is disposed between the first switching mechanism and the second switching mechanism, which are located together at sides of the stacked first breaking unit and second breaking unit.

Preferably, the first switching mechanism and the second switching mechanism are stacked in a thickness direction of the automatic transfer switch with a minimum thickness, and are disposed between the stacked first breaking unit and the second breaking unit.

Preferably, the first and second switching mechanisms are driven by first and second drivers.

Preferably, the first and second drivers are located at the same level as the first and second switching mechanisms, respectively.

Preferably, the first and second drivers are provided on the same level as the coupling mechanism.

Preferably, the first driver and the second driver may be replaced by one driver.

Preferably, the automatic transfer switch further comprises a controller disposed inside or outside the housing of the automatic transfer switch.

Preferably, the automatic transfer switch is connected with the first power source and the second power source by a plug-in type, and the automatic transfer switch further includes a mechanical interlock device provided outside the housing for preventing the plug from being accidentally pulled out in a case where the automatic transfer switch is connected with the first power source or the second power source and is powered on.

Preferably, the automatic change-over switch further comprises an insulating partition plate positioned at the outer bottom of the shell or a terminal cover positioned outside the shell, so that insufficient creepage distance between the automatic change-over switch and the mounting plate or between the terminal of the automatic change-over switch and a component near the terminal is avoided.

Preferably, the automatic change-over switch further comprises a separation plate positioned between the phases of the breaking unit of the automatic change-over switch, so that insufficient creepage distance between the phases is avoided.

Preferably, a mounting recess or mounting is included on the exterior of the housing for the DIN rail to be mounted or secured to the mounting plate.

Preferably, the power supply device further includes an auxiliary contact located outside the housing to reflect a turn-on or turn-off state of the breaking unit.

Preferably, the first and second switch modules are disconnectors or circuit breakers.

According to another aspect of the present invention, there is provided a dual power automatic transfer switch, comprising a first power supply and a second power supply, and the automatic transfer switch as described above.

According to still another aspect of the present invention, there is provided a method of manufacturing an automatic transfer switch, including:

providing a first switching module capable of independently performing a switching function, comprising a first disconnection unit, a first driver, and a first switching mechanism, the first driver actuating the first disconnection unit via the first switching mechanism to connect or disconnect a load to or from a first power source;

providing a second switching module capable of independently performing a switching function, comprising a second breaking unit, a second driver, and a second switching mechanism, the second driver actuating the second breaking unit via the second switching mechanism to connect or disconnect the load to or from the second power source;

wherein,

the first breaking unit and the second breaking unit are stacked in a thickness direction of the automatic transfer switch, and a coupling mechanism is further provided, which is disposed at a side of the stacked first breaking unit and second breaking unit in a direction perpendicular to the thickness direction, for coupling the first switching mechanism and the second switching mechanism to each other, to achieve disconnection of the load from the other power source by one of the first breaking unit or the second breaking unit before the other of the first breaking unit or the second breaking unit connects the load to the corresponding power source.

Preferably, the first breaking unit and the second breaking unit are stacked with a minimum thickness in a thickness direction of the automatic transfer switch, the first switching mechanism and the second switching mechanism are stacked with a minimum thickness in a thickness direction of the automatic transfer switch, and the coupling mechanism is disposed between the first switching mechanism and the second switching mechanism, which are disposed together at a side of the stacked first breaking unit and second breaking unit.

Preferably, the first and second breaking units are stacked in a thickness direction of the automatic transfer switch with a minimum thickness, and the first and second switching mechanisms are stacked in the thickness direction of the automatic transfer switch with a minimum thickness and are disposed between the stacked first and second breaking units.

Preferably, wherein the first and second switching mechanisms are driven by first and second drivers.

Preferably, the first and second drivers are arranged on the same level as the first and second switching mechanisms, respectively.

Preferably, the first and second drivers and the coupling mechanism are arranged at the same level.

Preferably, the first driver and the second driver are replaced by one driver.

Preferably, a controller is also provided, the controller being disposed inside or outside the housing.

Preferably, the automatic transfer switch is configured to be connected to the first power source or the second power source through a plug-in type, and a mechanical interlock device is further provided, which is provided outside the housing, for preventing the plug from being accidentally pulled out in a case where the automatic transfer switch is connected to the first power source or the second power source.

Preferably, an insulating partition plate located at the outer bottom of the housing or a terminal cover located outside the housing is included to avoid insufficient creepage distance between the automatic transfer switch and the mounting plate or between the automatic transfer switch terminal and a component near the terminal.

Preferably, the method comprises arranging a phase separator between the phases of the breaking unit of the automatic transfer switch to avoid insufficient creepage distance between the phases.

Preferably, there is further included providing a mounting recess and mounting member located outside the housing for DIN rail mounting or mounting plate mounting.

Preferably, there is further provided an auxiliary contact located outside the housing for reflecting an on or off state of the switching unit.

Preferably, the first switch unit and the second switch unit adopt isolating switches or circuit breakers.

According to yet another aspect of the present invention, there is provided a method of manufacturing a dual power automatic transfer switch, comprising providing a first power source and a second power source, manufacturing the automatic transfer switch using the manufacturing method described above, and connecting the first power source and the second power source to the automatic transfer switch.

According to the invention, because the components of the mature switch are adopted, and the automatic change-over switch is obtained through the rearrangement of the components, the original performance advantages of the mature switch components can be inherited, and meanwhile, because the layout is compact and reasonable, the transmission links are reduced, and the driving stroke is shortened, the automatic change-over switch also has the advantages of small volume, compact structure, high reliability, short development period and the like.

Drawings

Fig. 1 is a schematic diagram of an aspect of the general concept of an automatic transfer switch according to the present invention, showing first to fourth embodiments of the automatic transfer switch according to the present invention;

FIG. 2 is a schematic diagram of a first embodiment of the automatic transfer switch shown in FIG. 1;

FIG. 3 is an exemplary pictorial illustration of a first embodiment of the automatic transfer switch shown in FIG. 2;

FIG. 4 is a view with the housing removed of an exemplary physical diagram of the first embodiment of the automatic transfer switch shown in FIG. 3;

FIG. 5 is an enlarged partial view of the first embodiment of the automatic transfer switch shown in FIG. 4 with the housing removed;

FIG. 6 is a schematic diagram according to a second embodiment of the automatic transfer switch shown in FIG. 1;

FIG. 7 is a fragmentary view of an exemplary embodiment of the automatic transfer switch according to the second embodiment shown in FIG. 6;

FIG. 8 is a schematic diagram according to a third embodiment of the automatic transfer switch shown in FIG. 1;

FIG. 9 is an exemplary pictorial illustration of a third embodiment according to the automatic transfer switch illustrated in FIG. 8;

FIG. 10 is a schematic diagram according to a fourth embodiment of the automatic transfer switch shown in FIG. 1;

FIG. 11 is a schematic pictorial partial view of the fourth embodiment of the automatic transfer switch illustrated in FIG. 10;

fig. 12 is a schematic diagram of another aspect of the general concept of the automatic transfer switch according to the present invention, showing fifth to eighth embodiments of the automatic transfer switch according to the present invention;

FIG. 13 is a schematic view of a ninth embodiment of an automatic transfer switch according to the present invention;

FIG. 14 is a schematic view of a tenth embodiment of an automatic transfer switch according to the present invention;

fig. 15 is a schematic view of an eleventh embodiment of an automatic transfer switch according to the present invention;

FIG. 16 is a schematic view of a twelfth embodiment of an automatic transfer switch according to the present invention;

fig. 17 is a schematic view of a thirteenth embodiment of an automatic transfer switch according to the present invention;

fig. 18 is a schematic diagram of a fourteenth embodiment of an automatic transfer switch according to the present invention.

Detailed Description

The embodiments of the automatic transfer switch of the present invention will be described below with reference to the accompanying drawings, and directional terms used herein, such as "thickness direction", "direction perpendicular to thickness direction", upper and lower sides, are used only to describe the present invention with respect to the accompanying drawings and do not constitute a limitation of the present invention.

Fig. 1 is a schematic diagram of an aspect of the general concept of the automatic transfer switch according to the present invention, showing first to fourth embodiments of the automatic transfer switch according to the present invention.

An aspect of the present general inventive concept is to rapidly implement an automatic transfer switch, which inherits existing switch performance, a short driving stroke, a small volume, and high reliability, by combining and re-arranging partial components of a switch module with components of an existing switch module in a controller built-in state.

The switch module generally includes a controller, a driver, a switch mechanism and a breaking unit, the breaking unit is a component for connecting and disconnecting a load and a power circuit, and includes, for example, a moving contact, a stationary contact, a pivoting device of the moving contact, a fixing device of the stationary contact, an arc extinguish chamber, and the like, the switch mechanism is an actuating mechanism of a switch, and is connected to the breaking unit, and the driver drives the switch unit to operate, so as to connect and disconnect the load and the power circuit.

As shown in fig. 1, the general concept according to the first aspect of the present invention is to employ two existing switch modules, with a built-in controller, and in order to achieve a thinner thickness and a smaller volume of the automatic transfer switch, the two switch modules are preferably stacked in the thickness direction of the automatic transfer switch, and are preferably stacked in the thickness direction of the automatic transfer switch with a minimum thickness thereof. It is also possible that the switch modules are stacked or arranged side-by-side in any direction, except that the volume or thickness of the resulting automatic transfer switch may be larger than this preferred manner, but is within the scope of the present invention. The first to fourth embodiments of the automatic transfer switch according to the present invention are obtained by connecting only the switch mechanisms of two existing switch modules via the coupling mechanism and rearranging the driver and the switch mechanisms. In brief, in a first embodiment, the breaking units of two switching modules are stacked, the switching mechanisms are stacked on the sides of the breaking units, a coupling mechanism is provided between the two switching mechanisms, the two switching mechanisms are connected and driven by respective drivers, respectively, to realize automatic switching of the load from one power supply to the other power supply after the load is separated from the other power supply, and the two drivers are arranged on the same level with the corresponding switching mechanisms, respectively; in a second embodiment, the breaking units of two switch modules are superposed, the switch mechanism and the corresponding driver are respectively arranged between the breaking units of the two switch modules, each switch mechanism and the corresponding breaking unit form a switch subassembly, the combining mechanism is arranged at the side edge of the superposed switch subassemblies, and the driver and the switch mechanism are arranged at the same layer or the same layer as the combining mechanism; the third embodiment is similar to the first embodiment except that only one driver is used instead of two drivers in the first embodiment; the fourth embodiment is similar to the second embodiment, except that only one driver is used instead of two drivers in the second embodiment. For example, the two actuators of the switching modules of the first and second embodiments may be unidirectional actuated electromagnets, while the actuators of the switching modules of the third and fourth embodiments may be a reversible motor.

First to fourth embodiments of the automatic transfer switch according to the present invention are described in detail below, respectively.

First embodiment

FIG. 2 is a schematic diagram of a first embodiment of the automatic transfer switch shown in FIG. 1; FIG. 3 is an exemplary pictorial illustration of a first embodiment of the automatic transfer switch shown in FIG. 2; FIG. 4 is a view with the housing removed of an exemplary physical diagram of the first embodiment of the automatic transfer switch shown in FIG. 3; fig. 5 is a partially enlarged view of an exemplary physical diagram of the first embodiment of the automatic transfer switch shown in fig. 4 with a housing removed.

As can be seen from fig. 2, the automatic transfer switch according to the present invention is constructed by stacking a first switch module including a first built-in controller, a first driver, a first switch mechanism, and a first breaking unit, and a second switch module including a second built-in controller, a second driver, a second switch mechanism, and a second breaking unit. As can be seen from the exemplary physical diagram of fig. 3, the first and

second disconnecting units

2 and 3 are stacked in the up-down direction in the drawing, which is also the thickness direction of the actual automatic transfer switch, and thus it can be seen that the outer contour of the automatic transfer switch is substantially the contour of the stacked first switch module and second switch module, the volume of the first switch module and second switch module is not significantly increased, the structure is compact, and the basic structure of the first switch module and second switch module is not substantially changed, so that the basic performance of the first switch module and second switch module can be maintained.

In the view of fig. 4 with the housing removed and in the enlarged partial view of the mechanism in fig. 5, it can be seen that the first switching mechanism 6 and the second switching mechanism 7 are stacked up and down on the side of the first breaking unit 2 and the second breaking unit 3. It can also be seen in fig. 5 that a coupling mechanism 9 is also included between the first switching mechanism 6 and the second switching mechanism 7, which are disposed together between the first switching mechanism 6 and the second switching mechanism 7 stacked together. The coupling mechanism 9 is used to connect the first and

second switching mechanisms

6, 7 to each other to enable one of the first or

second breaking units

2, 3 to disconnect a load from the other power source when the other of the first or

second breaking units

2, 3 connects the load to the respective power source. As can also be seen from fig. 4, the first driver 4 and the second driver 5 are arranged at the same level with the first switching mechanism 6 and the second switching mechanism 7, respectively, and thus it can be seen that the first switching mechanism 6 and the second switching mechanism 7 which are stacked and the coupling mechanism 9 which is arranged between the first switching mechanism 6 and the second switching mechanism 7 constitute the mechanism of the automatic transfer switch according to the present invention, and the mechanism of the automatic transfer switch is arranged at the side of the first breaking unit 2 and the second breaking unit 3 which are stacked together with the first driver 4 and the second driver 5, such an arrangement that the thickness and the volume of the automatic transfer switch according to the present invention are minimized, the driving stroke of the automatic transfer switch is minimized, and the automatic transfer switch according to the present invention having reliable performance can be realized in a short time and the product development cycle is short.

Second embodiment

FIG. 6 is a schematic diagram according to a second embodiment of the automatic transfer switch shown in FIG. 1; fig. 7 is a fragmentary view of an exemplary embodiment of the automatic transfer switch according to the second embodiment shown in fig. 6. As can be seen from fig. 6 and 7, in the second embodiment of the automatic transfer switch according to the present invention, the first and

second breaking units

2 and 3 are stacked, and the first and

second switching mechanisms

6 and 7 are stacked, unlike the first embodiment, the stacked first and

second switching mechanisms

6 and 7 are disposed between the stacked first and

second breaking units

2 and 3, and the respective first and

second drivers

4 and 5 of the first and

second switching mechanisms

6 and 7 are disposed at the same level as the first and

second switching mechanisms

6 and 7, respectively. The first breaking unit 2, the first switching mechanism 6 constitute a first switching sub-assembly, the second breaking unit 3, the second switching mechanism 7 a second switching sub-assembly, which is shown in detail in the enlarged partial view of fig. 7. In this second embodiment also coupling means (not shown) are provided for interconnecting the first and second switching means to enable the other of the first or

second breaking units

2, 3 to disconnect the load from the other power source before the other of the first or

second breaking units

2, 3 connects the load to the respective power source. In this second embodiment of the automatic transfer switch according to the present invention, the coupling mechanism is disposed at a side of the first and second switch subassemblies which are stacked.

It is also within the scope of the present invention that the first and second drivers may be disposed between the first and second switch subassemblies in this second embodiment, and that the first and second drivers may also be disposed at the same level as the coupling mechanism and together disposed on the sides of the stacked first and second switch subassemblies.

Third embodiment

FIG. 8 is a schematic diagram according to a third embodiment of the automatic transfer switch shown in FIG. 1; fig. 9 is an exemplary physical diagram according to a third embodiment of the automatic transfer switch shown in fig. 8. This third embodiment is similar to the first embodiment described above. As can be seen from fig. 8 and 9, the first breaking unit 2 and the second breaking unit 3 are stacked, and the stacked first switching mechanism and second switching mechanism and the coupling mechanism disposed between the first switching mechanism and the second switching mechanism together constitute the

mechanism

6, 7, 9 of the automatic transfer switch according to the present invention. In contrast, in this third embodiment of the automatic transfer switch according to the present invention, the first driver and the second driver are replaced by one driver. The

mechanism

6, 7, 9 of the automatic transfer switch is arranged with the drive on the side of the first and second

superimposed breaking units

2, 3.

Fourth embodiment

FIG. 10 is a schematic diagram according to a fourth embodiment of the automatic transfer switch shown in FIG. 1; fig. 11 is a schematic, pictorial partial view of the fourth embodiment of the automatic transfer switch shown in fig. 10. This third embodiment is similar to the first embodiment described above. As can be seen from fig. 10 and 11, the first breaking unit 2 and the second breaking unit 3 are stacked, the stacked first switching mechanism 6 and second switching mechanism 7 are provided between the stacked first breaking unit 2 and second breaking unit 3 together with the driver arranged at the same level as the first switching mechanism 6 and second switching mechanism 7, the first breaking unit 2, the first switching mechanism 6 constitute a first switching subassembly, and the second breaking unit 3, the second switching mechanism 7 constitute a second switching subassembly. In contrast, in this fourth embodiment of the automatic transfer switch according to the present invention, the first driver and the second driver are replaced by one driver. The combining mechanism is arranged on the side of the first switch subassembly and the second switch subassembly which are overlapped and the driver.

Fifth to eighth embodiments

Fig. 12 is a schematic diagram of another aspect of the general concept of the automatic transfer switch according to the present invention, showing fifth to eighth embodiments of the automatic transfer switch according to the present invention.

Fifth to eighth embodiments of the automatic transfer switch according to the present invention are similar to the first to fourth embodiments except that the controller is externally provided outside the housing of the automatic transfer switch and coupled to the automatic transfer switch by a cable.

Ninth embodiment

Fig. 13 is a schematic diagram of a ninth embodiment of an automatic transfer switch according to the present invention. In addition to the first to fourth embodiments, an auxiliary contact for reflecting the on or off state of the breaking unit is externally added.

The auxiliary contacts in this embodiment are equally applicable to the fifth to eighth embodiments in which the controller is provided externally, and the application of the mechanical interlock to the fifth to eighth embodiments is also within the scope of the present invention.

Tenth embodiment

Fig. 14 is a schematic view of a tenth embodiment of the automatic transfer switch according to the present invention, to which a mechanical interlock device is externally added on the basis of the first to fourth embodiments. Usually, the automatic transfer switch is connected to the first power source and the second power source through a plug-in plug, and the interlock device is connected to the plug-in plug and is used for preventing the plug-in plug from being accidentally pulled out when the switch is switched on and powered on by the first power source or the second power source after the automatic transfer.

The mechanical interlock device of this embodiment is also applicable to the fifth to eighth embodiments in which the controller is provided outside, and the application of the mechanical interlock device in the fifth to eighth embodiments is also within the scope of the present invention.

Eleventh embodiment

Fig. 15 is a schematic view of an eleventh embodiment of the automatic transfer switch according to the present invention, which is to add an insulating barrier at the mounting bottom of the case of the automatic transfer switch to prevent insufficient creepage distance between the mounting plate and the automatic transfer switch, on the basis of the first to fourth embodiments.

The insulating spacer in this embodiment is also applicable to the fifth to eighth embodiments in which the controller is disposed outside, and the application of the insulating spacer in the fifth to eighth embodiments is also within the scope of the present invention.

Twelfth embodiment

Fig. 16 is a schematic diagram of a twelfth embodiment of the automatic transfer switch according to the present invention, which is based on the first to fourth embodiments, and in which a phase separator is provided between phases of a breaking unit of the automatic transfer switch to avoid insufficient creepage distance between the phases.

The partition plate in this embodiment is also applicable to the fifth to eighth embodiments in which the controller is disposed outside, and the application of the insulating partition plate or the terminal cover in the fifth to eighth embodiments is also within the scope of the present invention.

Thirteenth embodiment

Fig. 17 is a schematic diagram of a thirteenth embodiment of the automatic transfer switch according to the present invention, which is to add a terminal cover to the mounting bottom outlet of the case of the automatic transfer switch to avoid a creepage distance between the terminal and the member near the terminal, in addition to the first to fourth embodiments.

The terminal cover in this embodiment is also applicable to the fifth to eighth embodiments in which the controller is disposed outside, and the application of the insulating spacer to the fifth to eighth embodiments is also within the scope of the present invention.

Fourteenth embodiment

Fig. 18 is a schematic view of a fourteenth embodiment of the automatic transfer switch according to the present invention, which is based on the first to fourth embodiments, wherein a mounting recess is provided at a middle position of a mounting bottom portion of a housing of the automatic transfer switch for DIN rail mounting, as shown in a left side view in fig. 18, or mounting pieces are provided at upper and lower sides of the mounting bottom portion of the housing of the automatic transfer switch for fixing to a mounting plate, as shown in a right side view in fig. 18.

The mounting recess or mounting member of this embodiment is equally applicable to the fifth to eighth embodiments in which the controller is disposed externally, and the application of the insulating spacer or terminal cover to the fifth to eighth embodiments is also within the scope of the present invention.

The switching module of the automatic transfer switch according to the present invention may be a product having a switching function, such as a disconnector or a circuit breaker.

The features of the tenth to fourteenth embodiments may be combined with each other on the basis of the first to eighth embodiments, and the resulting new embodiments are also within the scope of the present invention.

While the best modes for carrying out the invention have been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the invention within the scope of the appended claims.

Claims

1. An automatic transfer switch comprising:

wherein,

2. The automatic transfer switch of claim 1, wherein the first switching mechanism and the second switching mechanism are stacked in a thickness direction of the automatic transfer switch with a minimum thickness, and the coupling mechanism is provided between the first switching mechanism and the second switching mechanism, which are located together on a side of the stacked first breaking unit and second breaking unit.

3. The automatic transfer switch of claim 1, wherein the first switching mechanism and the second switching mechanism are stacked in a thickness direction of the automatic transfer switch with a minimum thickness and are disposed between the stacked first breaking unit and the second breaking unit.

4. The automatic transfer switch of claim 2 or 3, wherein the first and second switching mechanisms are driven by first and second drivers.

5. The automatic transfer switch of claim 4, wherein the first and second drivers are located on the same level as the first and second switching mechanisms, respectively.

6. The automatic transfer switch of claim 3, wherein the first and second drivers are disposed on the same level as the coupling mechanism.

7. The automatic transfer switch of claim 1, wherein the first driver and the second driver are replaceable by one driver.

8. The automatic transfer switch of any of claims 1-7, wherein the automatic transfer switch further comprises a controller disposed inside or outside the housing of the automatic transfer switch.

9. The automatic transfer switch of claim 8, wherein the automatic transfer switch is connected to the first power source and the second power source by a plug-in type, and further comprising a mechanical interlock device provided outside the housing for preventing the plug from being accidentally unplugged in case the automatic transfer switch is connected to the first power source or the second power source and is powered on.

10. The automatic transfer switch of claim 8, further comprising an insulating partition located at an outer bottom of the housing or a terminal cover located outside the housing, to prevent insufficient creepage distance between the automatic transfer switch and the mounting plate or between the terminal of the automatic transfer switch and a component near the terminal.

11. The automatic transfer switch of claim 8, further comprising a standoff plate between the phases of the breaking unit of the automatic transfer switch to avoid insufficient creepage distance between the phases.

12. The automatic transfer switch of claim 8, further comprising a mounting recess or mount external to the housing for a DIN rail mount or secured to the mounting plate.

13. The automatic transfer switch of claim 8, further comprising an auxiliary contact located outside the housing to reflect an on or off state of the breaking unit.

14. The automatic transfer switch of claim 8, wherein the first and second switch modules are disconnectors or circuit breakers.

15. A dual power automatic transfer switch comprising a first power source and a second power source, and an automatic transfer switch according to any of the preceding claims.

16. A method of manufacturing an automatic transfer switch, comprising:

wherein,

17. The manufacturing method according to claim 16, wherein the first breaking unit and the second breaking unit are stacked with a minimum thickness in a thickness direction of the automatic transfer switch, the first switching mechanism and the second switching mechanism are stacked with a minimum thickness in a thickness direction of the automatic transfer switch, and the coupling mechanism is provided between the first switching mechanism and the second switching mechanism, which are provided together on a side of the stacked first breaking unit and second breaking unit.

18. The manufacturing method according to claim 16, wherein the first breaking unit and the second breaking unit are stacked in a thickness direction of the automatic transfer switch with a minimum thickness, and the first switching mechanism and the second switching mechanism are stacked in the thickness direction of the automatic transfer switch with a minimum thickness and are provided between the stacked first breaking unit and the second breaking unit.

19. The manufacturing method according to claim 17 or 18, wherein the first switching mechanism and the second switching mechanism are driven by a first driver and a second driver.

20. The method of manufacturing of claim 19, wherein the first and second drivers are disposed at the same level as the first and second switching mechanisms, respectively.

21. The method of manufacturing of claim 18, wherein the first and second drivers are disposed at the same level as the bonding mechanism.

22. The manufacturing method according to claim 16, wherein the first driver and the second driver are replaced by one driver.

23. The manufacturing method according to any one of claims 16 to 22, wherein a controller is further provided, the controller being provided inside or outside the housing.

24. The manufacturing method according to claim 23, wherein the automatic transfer switch is provided to be connected to the first power source or the second power source by a plug-in type, and a mechanical interlock device is further provided, provided outside the housing, for preventing the plug from being accidentally pulled out in case the automatic transfer switch is connected to the first power source or the second power source.

25. The manufacturing method according to claim 23, wherein an insulating partition plate located at an outer bottom of the housing or a terminal cover located outside the housing is included, and insufficient creepage distance between the automatic transfer switch and the mounting plate or between the terminal of the automatic transfer switch and a component near the terminal is avoided.

26. The method of claim 23, including providing phase separators between the phases of the breaking units of the automatic transfer switch to avoid insufficient creepage distance between the phases.

27. The method of manufacturing of claim 23, further comprising providing a mounting recess or mounting member external to the housing for DIN rail mounting or mounting plate mounting.

28. The method of manufacturing of claim 23, further comprising providing an auxiliary contact external to the housing for reflecting an on or off state of the switch unit.

29. The manufacturing method according to any one of claims 23, further comprising employing a disconnector or a circuit breaker for the first switching unit and the second switching unit.

30. A method of manufacturing a dual power supply automatic transfer switch comprising providing a first power supply and a second power supply, manufacturing the automatic transfer switch using the manufacturing method of any of claims 16-29, connecting the first power supply and the second power supply to the automatic transfer switch.