Two-stage automatic transfer switch electrical appliances
A technology of automatic transfer switch and micro switch, which is applied in the direction of electric switch, power device and circuit inside the switch, etc., can solve the problem of low reliability of the transfer operation device, and achieve the effect of reliable mechanical interlocking.
Active Publication Date: 2020-02-28
SHENZHEN TAIYONG ELECTRICAL TECH
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Problems solved by technology
The conversion operation device uses the structure of Y-shaped slot and toggle plate to realize the function of two stages. The closing force is maintained by the compression spring assembly. Because the moving contact assembly mainly adopts a single-contact snap-on structure, the compression spring needs to provide A very large force is used to overcome the overtravel reaction force generated by the pressure spring on the moving contact assembly, resulting in low reliability of the switching operation device
Method used
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[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0040] Such as figure 1 , 2 As shown, the automatic transfer switching device of an embodiment of the present invention at least includes a main circuit device 1 and a conversion operation device 2; The device 1 provides driving force to realize the opening and closing function of the main circuit device 1 .
[0041] Such as image 3 , 4 As shown, the switching operation device 2 may include a bracket 10, a first electromagnetic assembly 20 mounted on the bracket 10, a swing arm assembly 30 rotatably mounted on the bracket 10, and a swing arm assembly 30 mounted on the bracket 10 and linked to the swing arm assembly 30. The rotating shaft assembly 40 and the lock arm assembly 50 installed on the bracket 10 . The fi...
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The invention discloses a two-grade automatic conversion switching electrical appliance which comprises a main loop device and a conversion operation device. The conversion operation device is arranged at one side of the main loop device and is in linkage connection with the main loop device; the conversion operation device comprises a bracket, a first electromagnetic component mounted on the bracket, a swing arm component rotatably mounted on the bracket, a rotating shaft component which is mounted on the bracket and is in linkage connection with the swing arm component, a locking arm component mounted on the bracket and a compression spring component; the first electromagnetic component is connected with the swing arm component to drive the swing arm component to rotate back and forth; the locking arm component is provided with a locking position, and the swing arm component is provided with a shaft part; when the swing arm rotates towards one direction, the rotating shaft componentis driven to rotate, and the shaft part slides into the locking position; and when the swing arm component rotates towards a reverse direction, the rotating shaft component is driven to rotate reversely, and the shaft part slides out of the locking position. According to the invention, the first electromagnetic component and the compression spring component are arranged on the conversion operationdevice and used as power sources so as to provide a driving force for rotation of the rotating shaft component and achieve functions of two grades.
Description
technical field [0001] The invention relates to the technical field of automatic transfer switch appliances, in particular to a two-stage automatic transfer switch appliance. Background technique [0002] The transfer switch appliance is a common low-voltage electrical appliance, which is often used in important power distribution occasions (such as hospital power supply systems) to switch between two power supplies. When the common power supply fails during the power supply process, it will quickly switch to the backup power supply to ensure load normal power supply at the terminal. [0003] In the existing two-stage automatic transfer switch electrical appliances, the moving contact assembly mainly adopts a single-contact snap-on structure, and the product's on-off capability and short-term resistance index are relatively low. The conversion operation device uses the structure of Y-shaped slot and toggle plate to realize the function of two stages. The closing force is ma...
Claims
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IPC IPC(8): H01H3/28H01H9/00H01H9/24
CPCH01H3/28H01H9/0027H01H9/24
Inventor 朱熔吾聂其东
Owner SHENZHEN TAIYONG ELECTRICAL TECH