Abstract: An electronic expansion valve and a refrigeration system including the electronic expansion valve are provided. The electronic expansion valve includes a valve seat, a valve needle, a drive mechanism, a planetary gear deceleration mechanism. The drive mechanism serves as an input end of the planetary gear deceleration mechanism, the planetary gear deceleration mechanism has the output inner gear ring, the output inner gear ring is fixedly connected to a screw rod of the transmission mechanism to enable the screw rod to rotate, the screw rod is in threaded connection with a nut, to convert a rotation motion of the screw rod into a linear motion.

Abstract: Provided are an electric valve and a thermal management assembly. The electric valve includes a valve body, the valve body includes a first portion and a second portion, and the valve body is fixedly connected to a cover body through the first portion. The second portion includes a third wall. The first portion includes a first side wall and a second side wall, the first side wall and the second side wall are disposed opposite to each other, the first side wall and the second side wall are located on two sides of the valve body, and the third wall and the first side wall are located on a same side of the valve body.

Abstract: A flow control device for a heat exchange system. The device includes a housing, a valve core and a transmission element. The housing is formed with an accommodating portion, a first port and a second port, the valve core being at least partially accommodated in the accommodating portion. The housing includes fixing elements and an outer housing, the fixing elements being located on a circumferential inner side of the outer housing, the outer housing and the fixing elements are arranged in a relatively sealing manner, and the valve core and the fixing elements are arranged in a relatively sealing manner. The valve core at least has a first flowing passage. The transmission element drives the valve core to open or close at least one of the first and second ports, thereby improving an internal sealing performance of the product.

Abstract: Provided are an electric valve, a thermal management assembly, and an air conditioning system. The electric valve includes a valve body, a circuit board, and a sensor. The valve body has a passage, and the sensor is connected to the circuit board in at least one of an electric connection mode and a signal connection mode. The sensor is configured to detect at least one of a pressure or a temperature of a working medium in the passage. At least one of the valve body or a housing of the sensor includes a metal portion, and a reference ground of the circuit board is electrically connected directly or indirectly to the metal portion.

Abstract: An electrically operated valve includes a rotor, a stator assembly, a sleeve, a valve assembly, a box body, a circuit board assembly, and a valve port. The stator assembly is disposed outside the rotor, and the stator assembly includes a coil assembly. The sleeve is configured to isolate the stator assembly from the rotor. The valve assembly includes a spool. The box body has a cavity, and the circuit board assembly is accommodated in the cavity. The rotor is configured to drive the spool to move close to or away from the valve port.

Abstract: Provided is a mode control method that includes obtaining a PWM signal; obtaining a duty cycle of the PWM signal; obtaining a target rotational speed of an electric pump based on the duty cycle of the PWM signal; in response to determining that the target rotational speed of the electric pump is equal to 0 and the target rotational speed of the electric pump remains equal to 0 for the set duration, entering the sleep mode by the microcontroller; and in response to determining that the target rotational speed of the electric pump is not equal to 0 or the target rotational speed of the electric pump does not remain equal to 0 for the set duration, entering the working mode by the microcontroller. Further provided are a mode control system, an electronic device and a storage medium.

Abstract: A packaging structure for electronic expansion valves includes a body for accommodating the electronic expansion valves, wherein the body includes more than one supporting portion, each supporting portion has first recess portions and second recess portions alternately arranged, the first recess portions and the second recess portions are all configured to support housings of the electronic expansion valves; and a center distance of each of the first recess portions and the adjacent second recess portion is the same as an outer diameter of the housing of each of the electronic expansion valves, to allow the housings of two of the electronic expansion valves to be attached together after the two electronic expansion valves are placed in an opposite direction.

Abstract: A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10). The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction. The configuration of the welding structure enhances the strength of the welded portion of the pipe, so that the pipe will not crack easily when it is reworked by flaring or bending, thus having high reworkability. In addition, a pipe (100) made of the pipe body (10) and a method of making the pipe (100) are disclosed.

Abstract: An electronic expansion valve and a refrigeration system including the electronic expansion valve are provided. The electronic expansion valve includes a valve seat, a valve needle, a drive mechanism, a planetary gear deceleration mechanism. The drive mechanism serves as an input end of the planetary gear deceleration mechanism, the planetary gear deceleration mechanism has the output inner gear ring, the output inner gear ring is fixedly connected to a screw rod of the transmission mechanism to enable the screw rod to rotate, the screw rod is in threaded connection with a nut, to convert a rotation motion of the screw rod into a linear motion.

Abstract: An electronic expansion valve includes: a valve seat, the valve seat has a valve cavity and is provided with a valve port; a valve needle, matching the valve port and used to perform flow adjustment of the electronic expansion valve; a lead screw, forming a floating connection to the valve needle via a barrel portion; and a nut, wherein a threaded fit is formed between the nut and the lead screw, and a lower portion of the nut is provided with a nut guiding portion. A guide component is fixedly connected to the valve seat. The guide component guides both the barrel portion and the valve needle. The electronic expansion valve of the invention is provided with the guide component, and the guide component can guide both the valve needle and the barrel portion, effectively preventing abnormal wear caused by radial deviation of the valve needle and the barrel portion.

Abstract: An electronic expansion valve includes: a valve seat, the valve seat has a valve cavity and is provided with a valve port; a valve needle, matching the valve port and used to perform flow adjustment of the electronic expansion valve; a lead screw, forming a floating connection to the valve needle via a barrel portion; and a nut, wherein a threaded fit is formed between the nut and the lead screw, and a lower portion of the nut is provided with a nut guiding portion. A guide component is fixedly connected to the valve seat. The guide component guides both the barrel portion and the valve needle. The electronic expansion valve of the invention is provided with the guide component, and the guide component can guide both the valve needle and the barrel portion, effectively preventing abnormal wear caused by radial deviation of the valve needle and the barrel portion.

Abstract: A packaging structure for electronic expansion valves includes a body for accommodating the electronic expansion valves, wherein the body includes more than one supporting portion, each supporting portion has first recess portions and second recess portions alternately arranged, the first recess portions and the second recess portions are all configured to support housings of the electronic expansion valves; and a center distance of each of the first recess portions and the adjacent second recess portion is the same as an outer diameter of the housing of each of the electronic expansion valves, to allow the housings of two of the electronic expansion valves to be attached together after the two electronic expansion valves are placed in an opposite direction.

Abstract: Provided is a dry filter, including: a barrel; a first end cover and a second end cover; a first filter layer, provided at an end, close to the first end cover (20), in the barrel (10); a dry layer, provided in the barrel and located at a side, away from the first end cover, of the first filter layer, the dry layer including a first filter plate and a second filter plate, the second filter plate and a barrel wall of the barrel forming a dry chamber; and a first fixing structure, defining the position of the second filter plate in the barrel, such that a buffer chamber is formed between the second filter plate, an inner wall of the barrel and the second end cover. The dry filter solves the problems of easy accumulation of impurities on a filter plate of an existing dry filter and low utilization rate.

Abstract: A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10). The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction. The configuration of the welding structure enhances the strength of the welded portion of the pipe, so that the pipe will not crack easily when it is reworked by flaring or bending, thus having high reworkability. In addition, a pipe (100) made of the pipe body (10) and a method of making the pipe (100) are disclosed.

Abstract: An electronic expansion valve is provided, wherein a piston component and a valve needle component are located at the same side of a valve core seat. When refrigerant flows forwards, the piston component closes the bypass through hole, the refrigerant flows to a side of the vertical connecting pipe via the valve core valve port, and the valve needle component moves in the axial direction to regulate an opening of the valve core valve port. When the refrigerant flows reversely, the piston component moves upwards in the axial direction to open the bypass through hole, and the refrigerant flows to a side of the transverse connecting pipe via the bypass through hole. The electronic expansion valve ensures that the valve needle component seals the valve core valve port easily in a high pressure state when the refrigerant flows forwards, and reduces axial and radial dimensions of the valve seat.

Abstract: A gas-liquid separator applicable to a refrigeration system includes a cylindrical body, an inlet pipe fixedly connected to an upper end of the cylindrical body and an outlet pipe fixedly connected to a lower end of the cylindrical body, and further includes a gas guiding element, the gas guiding element further including a baffle, a flange located at one end of the baffle, and a bottom plate located at the other end of the baffle, the baffle being located above the outlet pipe and blocking a gas inlet of the outlet pipe; the flange being fixedly connected to an inner wall of the cylindrical body; and the bottom plate being fixedly connected to a side wall of a gas inlet end of the outlet pipe.

Abstract: An electronic expansion valve is provided, the valve needle component thereof is provided with an axial mounting hole, the screw rod position limiting portion is mounted at the bottom end of the screw rod and extends into the axial mounting hole, and the valve needle position limiting portion is mounted at an open end of the axial mounting hole; and a distance between the bottom end of the screw rod and a bottom wall of the axial mounting hole forms the predetermined buffer distance. When the refrigerant flows reversely, the structural design of the electronic expansion valve may, on one hand, simplify the control procedure, and on the other hand, avoid the problem that a screw rod is stuck because a valve needle component is not removed in time.