电源转换开关

Abstract

本申请涉及电气开关装置相关技术领域，特别是涉及一种电源转换开关。电源转换开关包括壳体、第一电源触头、第二电源触头、导电闸刀、手柄及挡板；当导电闸刀处于第一位置时，导电闸刀与第一电源触头接触并通电，当导电闸刀处于第二位置时，导电闸刀分别与第一电源触头与第二电源触头脱开并断电，当导电闸刀处于第三位置时，导电闸刀与第二电源触头接触并通电；手柄用于驱使导电闸刀在第一位置、第二位置及第三位置之间切换；挡板设置于壳体外侧并与壳体连接；当导电闸刀处于第一位置、第二位置或者第三位置时，手柄均能够被锁定至挡板上，用于将导电闸刀限位住。本申请的电源转换开关工作时可避免手柄因误触碰或非授权人员操作而发生移位。

Claims

1. A power transfer switch, characterized in that, The power transfer switch (100) includes: The shell (10) encloses and forms a receiving cavity (101). The first power contact (20) is housed in the cavity (101) and connected to the housing (10) for electrical connection with the first power supply terminal; The second power contact (30) is housed in the cavity (101) and connected to the housing (10) for electrical connection with the second power supply terminal; A conductive switch (40) is housed in the receiving cavity (101) and rotatably connected to the housing (10) for electrical connection with the power supply terminal. The conductive switch (40) has a first position, a second position and a third position. When the conductive switch (40) is in the first position, the conductive switch (40) contacts the first power contact (20) and is energized. When the conductive switch (40) is in the second position, the conductive switch (40) is disconnected from the first power contact (20) and the second power contact (30) and is de-energized. When the conductive switch (40) is in the third position, the conductive switch (40) contacts the second power contact (30) and is energized. A handle (50) is disposed on the outside of the housing (10) and is connected to the conductive switch (40) for driving the conductive switch (40) to switch between the first position, the second position and the third position; A baffle (60) is disposed on the outside of the housing (10) and connected to the housing (10); When the conductive switch (40) is in the first position, the second position or the third position, the handle (50) can be locked onto the baffle (60) to limit the conductive switch (40).

2. The power transfer switch of claim 1, wherein, The baffle (60) is provided with a first lock hole (61), through which the locking beam of the external padlock passes and locks the external padlock onto the baffle (60); When the conductive switch (40) is in the first position, the locking beam passing through the first locking hole (61) is positioned on the movement path of the handle (50) when it switches from the first position to the second position, for locking the handle (50).

3. The power transfer switch of claim 1, wherein, The baffle (60) is provided with a second lock hole (62) and a third lock hole (63). The second lock hole (62) and the third lock hole (63) are respectively for the lock beam of the external padlock to pass through, and the external padlock is locked to the baffle (60). When the conductive switch (40) is in the second position, the second locking hole (62) and the third locking hole (63) are provided on the left and right sides of the handle (50) in the direction of movement of the handle (50), and the locking beam passing through the second locking hole (62) and the third locking hole (63) is provided on the movement path of the handle (50) relative to the baffle (60) to lock the handle (50).

4. The power transfer switch of claim 3, wherein, The baffle (60) has a first limiting protrusion (65) and a second limiting protrusion (66). When the conductive switch (40) is in the second position, the first limiting protrusion (65) and the second limiting protrusion (66) are disposed on the left and right sides of the handle (50) in the direction of movement of the handle (50), and are loosely fitted to the handle (50) respectively.

5. The power transfer switch of claim 1, wherein, The baffle (60) is provided with a fourth lock hole (64), through which the lock beam of the external padlock passes and locks the external padlock onto the baffle (60); When the conductive switch (40) is in the third position, the locking beam passing through the fourth locking hole (64) is positioned on the movement path of the handle (50) when it switches from the third position to the second position, for locking the handle (50).

6. The power transfer switch of claim 1, wherein, The housing (10) is connected to a neutral wire terminal (11), which is electrically connected to the first power contact (20), the second power contact (30) and the conductive switch (40) respectively, so that the neutral wire is connected between the first power contact (20), the second power contact (30) and the conductive switch (40); And / or, a ground terminal (12) is connected to the housing (10), and the ground terminal (12) is electrically connected to the first power contact (20), the second power contact (30) and the conductive switch (40) respectively, so that the ground wire is connected between the first power contact (20), the second power contact (30) and the conductive switch (40).

7. The power transfer switch of claim 1, wherein, The housing (10) has an inlet hole (14) and a sealing plate (15) is threadedly connected to the inlet hole (14). The sealing plate (15) allows an external power cord to pass through and can abut against and seal the power cord passing through the inlet hole (14). The power cord is used to electrically connect the first power contact (20), the second power contact (30), or the conductive switch (40).

8. The power transfer switch of claim 7, wherein, The number of the inlet holes (14) is configured to be multiple, and the multiple inlet holes (14) are arranged at different positions of the housing (10), and the power cord can selectively pass through the inlet hole (14) and extend into the receiving cavity (101); The power conversion switch (100) further includes a sealing plug (70), which is threadedly connected to the housing (10) and is used to block the inlet hole (14) through which the power line does not pass.

9. The power transfer switch of claim 1, wherein, The housing (10) is equipped with arc-extinguishing shields (90) at the positions of the first power contact (20) and the second power contact (30), respectively, for arc-extinguishing protection of the first power contact (20) and the second power contact (30).

10. The power transfer switch of claim 9, wherein, A clip (110) is connected to the housing (10). The clip (110) is correspondingly provided with the arc extinguishing cover (90), and the arc extinguishing cover (90) is connected to the corresponding clip (110) in a snap-fit ​​manner to fix the arc extinguishing cover (90) to the housing (10).

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