| 摘要 |
A linear bidirectional electromagnetic valve. A main valve body (2) of the linear bidirectional electromagnetic valve is provided with a first interface (2a) and a second interface (2b) both controlled by a piston (3) to be turned on or off. The bidirectional electromagnetic valve also has a first runner (2-1) and a second runner (2-2) both separately communicating with the first interface (2a) and the second interface (2b) to enable a refrigerant to flow out of a piston chamber (4), and the first runner (2-1) and the second runner (2-2) are both disposed in the main valve body (2). The main valve body (2) is provided inside with a guide valve runner (21d), and the piston chamber (4) communicates with a guide valve opening on a guide valve body (1) by using the guide valve runner (21d). A guide valve head (11) of the guide valve body (1) moves to open or close the guide valve opening to turn on or off the first runner (2-1), the second runner (2-2), and the piston chamber (4). The guide valve head (11) of the guide valve body (1) of the electromagnetic valve is separated from the piston (3), and when the electromagnetic valve has a great traffic demand, the stroke of a moving core does not need to be increased; dislocation is not easy to occur on the guide valve head (11) and the main valve body (2), a complicated guide element does not need to be disposed, the structure is simplified, the treatment cost and the assembly process cost are low, and the control precision can meet a requirement. |
