CN202405134U - Automatic change-over switch appliance - Google Patents

Abstract

The utility model relates to an automatic switch electrical appliance, comprising a first moving contact pulling device for pulling the N-level moving contact of the common power supply and disconnecting the N-level static contact of the common power supply, and a first moving contact pulling device for pulling the standby The second moving contact pulling device for disconnecting the N-level moving contact of the power supply from the N-level static contact of the backup power supply; the first moving contact pulling device is fixedly connected to the square shaft of the backup power supply, and passes through the first N-level The connecting rod is rotatably connected to the square shaft of the normal power supply, the second moving contact pulling device is fixedly connected to the square shaft of the normal power supply, and is rotatably connected to the square shaft of the backup power supply through a second N-level connecting rod. The automatic switch electrical appliance of the utility model can ensure that the N stage is not disconnected during the switching process, thereby eliminating the emptying of the zero line, without increasing the cost, and without affecting the switching speed, and can obtain higher electrical performance.

Description

An automatic transfer switch

technical field

The utility model relates to a dual-power switch electrical appliance, more specifically, relates to an N-level overlapping switching automatic transfer switch appliance used for realizing the switching of a power supply system from a normal power supply to a backup power supply.

Background technique

At present, on the market, the N-level of the dual power supply and the other three-level are on the same shaft, and there is a phenomenon of vacancy during the conversion process. The usual practice is to connect the N of the common and standby power supplies, but this will affect the conversion speed, and because the two power supply systems Different, will affect the lower circuit.

Utility model content

The technical problem to be solved by the utility model is to provide an automatic transfer switch appliance for the above-mentioned defects of the prior art.

The technical scheme adopted by the utility model to solve the technical problem is: to construct an automatic switch electrical appliance, including the first moving contact for pulling the N-level moving contact of the common power supply and disconnecting the N-level static contact of the common power supply A head pulling device, and a second moving contact pulling device for pulling the N-level moving contact of the backup power supply and disconnecting the N-level static contact of the backup power supply;

The first moving contact pulling device is fixedly connected to the backup power supply square shaft, and is rotatably connected to the normal power supply square shaft through the first N-level connecting rod, and the second moving contact pulling device is connected to the normal power supply square shaft. The square shaft of the power supply is fixedly connected, and is rotatably connected with the square shaft of the standby power supply through the second N-level connecting rod.

The automatic transfer switch appliance described in the utility model, wherein, the first movable contact traction device includes a first square shaft rocker; one end of the first square shaft rocker is fixedly connected to the backup power supply square shaft, and the other One end is hinged to one end of the first N-level connecting rod, one end of the first N-level connecting rod is hinged to the first square shaft rocker, and the other end is freely rotatable around the common power supply square shaft to the Common power square shaft connection.

The automatic transfer switch appliance described in the utility model, wherein, one end of the rocker with the first square shaft is provided with a square hole for matching with the square shaft of the backup power supply, and the rocker with the first square shaft passes through the square hole Be fixed on the square shaft of the backup power supply.

The automatic transfer switch appliance described in the utility model, wherein, the other end of the first N-level connecting rod is connected to the square shaft of the common power supply through the first sleeve so that it can freely rotate around the square shaft of the common power supply;

One end of the first bush is rotatably connected to the square shaft of the common power supply, and is hinged to one end of the first N-stage connecting rod.

The automatic transfer switch appliance described in the utility model, wherein, the other end of the first shaft sleeve is hinged to the N-level moving contact of the common power supply through the first connecting rod, and the first shaft sleeve is connected to the second A torsion spring is also provided at the hinged position of a connecting rod.

The automatic transfer switch electrical appliance described in the utility model, wherein, the second movable contact traction device includes a second square shaft rocker; one end of the second square shaft rocker is fixedly connected to the square shaft of the common power supply, and the other One end is hinged to one end of the second N-level connecting rod, one end of the second N-level connecting rod is hinged to the second square shaft rocker, and the other end is freely rotatable around the backup power supply square shaft to the Backup power square shaft connection.

The automatic transfer switch appliance described in the utility model, wherein, one end of the second square shaft rocker is provided with a square hole for connecting with the square shaft of the common power supply, and the second square shaft rocker passes through the square hole It is fixed on the square shaft of the common power supply.

The automatic transfer switch appliance described in the present utility model, wherein, the other end of the second N-level connecting rod is connected to the square shaft of the backup power source freely rotatably around the square shaft of the backup power source through a second sleeve;

One end of the second bushing is rotatably connected to the square shaft of the standby power supply, and hinged to one end of the second N-stage connecting rod.

The automatic transfer switch appliance described in the utility model, wherein, the other end of the second shaft sleeve is hinged to the N-level moving contact of the standby power supply through a second connecting rod, and the second connecting rod is connected to the standby power supply There is also a torsion spring at the hinged position of the N-level moving contact.

Implementing the automatic transfer switch appliance of the present utility model has the following beneficial effects: the automatic transfer switch appliance of the present utility model can ensure that the N level is not disconnected during the conversion process, thereby eliminating the emptying of the zero line, without increasing the cost, and without affecting the conversion speed, Can obtain higher electrical performance.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the front view of a preferred embodiment of an automatic transfer switch appliance of the present invention;

Fig. 2 is a top view of a preferred embodiment of an automatic transfer switch appliance of the present invention;

Fig. 3 is a diagram of the use state when the square axis of the common power supply rotates an angle counterclockwise in a preferred embodiment of an automatic transfer switch appliance of the present invention;

Fig. 4 is a diagram of the use state when the square axis of the standby power supply rotates clockwise by an angle in a preferred embodiment of an automatic transfer switch appliance of the present invention.

Detailed ways

As shown in Figure 1, see Figure 2 at the same time. In a preferred embodiment of the present utility model, the automatic transfer switching device is mainly used to realize N-level overlapping conversion in the process of switching the power supply system from the normal power supply to the standby power supply. It includes a first moving contact pulling device for pulling the N-level moving contact 100 of the common power supply and disconnecting the N-level static contact 101 of the normal power supply, and a first moving contact pulling device for pulling the N-level moving contact 200 of the standby power supply and the N-level static contact of the standby power supply. The second moving contact pulling device for disconnecting the static contact 201. Among them, the first moving contact pulling device is fixedly connected with the backup power supply square shaft 202, and is rotatably connected with the normal power supply square shaft 102 through the first N-level connecting rod 301, and the second moving contact pulling device is fixed with the normal power supply square shaft 102. connected, and rotatably connected with the backup power supply square shaft 202 through the second N-level connecting rod 401.

The utility model is mainly applicable to the normal power supply and the standby power supply with four levels. Therefore, both the normal power supply and the standby power supply have a grounded neutral line, which is the N level of the utility model. In the process of switching from the normal power supply to the backup power supply, the voltage will drift, that is, the phenomenon of the zero line vacating, which will affect the lower-end equipment and reduce the performance of electrical appliances. In order to avoid the occurrence of the zero line vacating phenomenon, the utility model utilizes the first moving contact pulling device and the second moving contact pulling device arranged symmetrically between the normal power supply square shaft 102 and the standby power supply square shaft 202 one after the other. It is guaranteed that at least one N stage is closed during the transition:

The first moving contact pulling device is fixedly connected with the backup power supply square shaft 202, therefore, when the backup power supply square shaft 202 rotates counterclockwise, it will drive the first moving contact pulling device to pull the N-level moving contact 100 of the common power supply Separate with common power supply N level static contact 101, at this moment, because one end of the first movable contact traction device is to be connected with common power supply square shaft 102 in rotation, so common power supply square shaft 102 can not rotate.

When the square shaft 102 of the normal power supply rotates clockwise, since the second movable contact pulling device is fixedly connected with the square shaft 102 of the normal power supply, it will drive the second moving contact pulling device to pull the N-level moving contact 200 of the backup power supply Separate with the N-level static contact 201 of the backup power supply, at this moment, because the second moving contact traction device has a section to be connected with the rotation of the backup power supply square shaft 202, therefore, the backup power supply square shaft 202 will not rotate.

The above are the respective action processes of the first moving contact pulling device and the second moving contact pulling device. Both the power supply and the standby power supply are in the disconnected state. Then, after the N-level movable contact 100 of the common power supply and the N-level static contact 101 of the common power supply are separated, the square shaft 202 of the standby power supply needs to rotate an angle clockwise at this time, so that the common power supply After the N-level moving contact 100 of the power supply and the N-level static contact 101 of the standby power supply are closed, the square shaft 102 of the normal power supply can rotate clockwise, so that the N-level moving contact 200 of the standby power supply is separated from the N-level static contact 201 of the standby power supply.

As shown in Figure 3, further, the first moving contact pulling device includes a first square shaft rocker 300, one end of the first square shaft rocker 300 is fixedly connected to the backup power supply square shaft 202, and the other end is connected to the first N stage One end of the rod 301 is hinged, and one end of the first N-level connecting rod 301 is hinged to the first square shaft rocker 300 , and the other end is connected to the common power square shaft 102 freely rotatable around the common power square shaft 102 .

The first square shaft rocker 300 can be fixedly connected to the standby power supply square shaft 202 in a variety of ways. In a preferred embodiment of the present invention, one end of the first square shaft rocker 300 is provided with a The first square shaft rocker 300 is fixed on the backup power supply square shaft 202 through the square hole. In the same way, the first N-level connecting rod 301 can be rotationally connected to the common power supply square shaft 102 in various ways. In a preferred embodiment of the present utility model, the other end of the first N-level connecting rod 301 passes through the first shaft The sleeve 303 is freely rotatably connected to the common power supply square shaft 102;

In order to be able to pull the N-level moving contact 100 of the common power supply, the other end of the first bushing 303 is hinged to the N-level moving contact 100 of the common power supply through the first connecting rod 302, and for the convenience of reset, the first bushing 303 and the second A torsion spring (not shown in the figure) is also provided at the hinged position of a connecting rod 302 .

As shown in FIG. 4 , the second moving contact pulling device includes a second square shaft rocker 400 . One end of the second square shaft rocker 400 is fixedly connected to the common power supply square shaft 102, the other end is hinged to one end of the second N-level connecting rod 401, and one end of the second N-level connecting rod 401 is hinged to the second square shaft rocker 400, The other end is connected with the backup power supply square shaft 202 freely rotatable around the backup power supply square shaft 202 .

The second square axis rocker 400 can be fixedly connected to the common power supply square shaft 102 in many ways. In a preferred embodiment of the present invention, one end of the second square axis rocker 400 is provided with a The second square shaft rocker 400 is fixed on the common power supply square shaft 102 through the square hole. Similarly, the second N-level connecting rod 401 can be rotationally connected to the standby power supply square shaft 202 in various ways. In a preferred embodiment of the present invention, the other end of the second N-level connecting rod 401 passes through the second shaft The sleeve 403 is freely rotatably connected to the backup power supply square shaft 202 ; and one end of the second shaft sleeve 403 is rotatably connected to the backup power supply square shaft 202 , and is hinged to one end of the second N-level connecting rod 401 .

In order to be able to pull the N-level moving contact 200 of the standby power supply, the other end of the second bushing 403 is hinged to the N-level moving contact 200 of the standby power supply through the second connecting rod 402, and the second connecting rod 402 is connected to the N-level moving contact of the standby power supply. A torsion spring (not shown) is also provided at the hinged position of the head 200 .

The automatic switch electrical appliance of the utility model can ensure that the N stage is not disconnected during the switching process, thereby eliminating the emptying of the zero line, without increasing the cost, and without affecting the switching speed, and can obtain higher electrical performance.

The above embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the claims of the utility model shall fall within the scope of the claims of the utility model.

Claims (9)

1. automatic transfer switching electric appliance; Be used for realizing that electric power system switches to the overlapping conversion of stand-by power supply process N level from power supply commonly used; It is characterized in that, comprise the second moving contact draw-gear that is used to draw the first moving contact draw-gear of said power supply N level moving contact commonly used (100) and power supply N level fixed contact commonly used (101) disconnection and is used to draw said stand-by power supply N level moving contact (200) and stand-by power supply N level fixed contact (201) disconnection;

The said first moving contact draw-gear is fixedly connected with said stand-by power supply square shaft (202); And be rotationally connected through a N level connecting rod (301) and said power supply square shaft commonly used (102); The said second moving contact draw-gear is fixedly connected with said power supply square shaft commonly used (102), and is rotationally connected through the 2nd N level connecting rod (401) and said stand-by power supply square shaft (202).

2. automatic transfer switching electric appliance according to claim 1 is characterized in that, the said first moving contact draw-gear comprises the first square shaft rocking bar (300); The said first square shaft rocking bar (300) one ends are fixedly connected with said stand-by power supply square shaft (202); One end of the other end and a said N level connecting rod (301) is hinged; A said N level connecting rod (301) one ends and the said first square shaft rocking bar (300) are hinged, and the other end can be connected with said power supply square shaft commonly used (102) around said power supply square shaft commonly used (102) with rotating freely.

3. automatic transfer switching electric appliance according to claim 2; It is characterized in that; The said first square shaft rocking bar (300) one ends are provided with and are used for the square opening that cooperates with said stand-by power supply square shaft (202), and the said first square shaft rocking bar (300) is fixed on the said stand-by power supply square shaft (202) through said square opening.

4. automatic transfer switching electric appliance according to claim 2 is characterized in that, the other end of a said N level connecting rod (301) can be connected with said power supply square shaft commonly used (102) around said power supply square shaft commonly used (102) through first axle sleeve (303) with rotating freely;

Said first axle sleeve (303) one ends and said power supply square shaft commonly used (102) are rotationally connected, and hinged with an end of a said N level connecting rod (301).

5. automatic transfer switching electric appliance according to claim 4; It is characterized in that; The other end of said first axle sleeve (303) is hinged through first connecting rod (302) and said power supply N level moving contact commonly used (100), and said first axle sleeve (303) also is provided with torsion spring with the hinged position of said first connecting rod (302).

6. according to claim 1 or 2 each described automatic transfer switching electric appliances, it is characterized in that the said second moving contact draw-gear comprises the second square shaft rocking bar (400); The said second square shaft rocking bar (400) one ends are fixedly connected with said power supply square shaft commonly used (102); One end of the other end and said the 2nd N level connecting rod (401) is hinged; Said the 2nd N level connecting rod (401) one ends and the said second square shaft rocking bar (400) are hinged, and the other end can be connected with said stand-by power supply square shaft (202) around said stand-by power supply square shaft (202) with rotating freely.

7. automatic transfer switching electric appliance according to claim 6; It is characterized in that; The said second square shaft rocking bar (400) one ends are provided with and are used for the square opening that is connected with said power supply square shaft commonly used (102), and the said second square shaft rocking bar (400) is fixed on the said power supply square shaft commonly used (102) through said square opening.

8. automatic transfer switching electric appliance according to claim 6 is characterized in that, the other end of said the 2nd N level connecting rod (401) can be connected with said stand-by power supply square shaft (202) around said stand-by power supply square shaft (202) through second axle sleeve (403) with rotating freely;

Said second axle sleeve (403) one ends and said stand-by power supply square shaft (202) are rotationally connected, and hinged with an end of said the 2nd N level connecting rod (401).

9. automatic transfer switching electric appliance according to claim 8; It is characterized in that; The other end of said second axle sleeve (403) is hinged through second connecting rod (402) and said stand-by power supply N level moving contact (200), and said second connecting rod (402) also is provided with torsion spring with the hinged position of said stand-by power supply N level moving contact (200).

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