Abstract: An electric pump including a pump shaft, a first rotor assembly, a stator assembly, and a second rotor assembly. The first rotor assembly is arranged in a first accommodation cavity, the stator assembly and the second rotor assembly are arranged in a second accommodation cavity; the electric pump further comprises a first channel and a second channel, the first channel passes through the upper and lower surfaces of the bottom wall of a first accommodation portion, the first channel can communicate with first accommodation cavity and the second accommodation cavity, at least part of a work medium in the first accommodation cavity can flow into the second accommodation cavity through the first channel, the second channel is arranged to penetrate through a first end face of the pump shaft and a second end face of the pump shaft.

Abstract: A thermal management system, the thermal management system having a coolant system, wherein the coolant system includes a battery circuit and a heating/cooling circuit; a second flow channel of a first heat exchanger, a battery heat exchanger, and a first pump form a part of the battery circuit, while a heater, a radiator, and a second pump form a part of the heating/cooling circuit; a first valve device turns on or blocks the battery circuit and the heating/cooling circuit; the coolant system comprises a connection portion, and the connection portion turns on or blocks the battery circuit and the heating/cooling circuit.

Abstract: An accumulator, including a housing and a cover body, one end of the housing being open; the housing is internally provided with an accommodating cavity, the accommodating cavity being internally provided with a filter; a peripheral wall of the housing comprises a first thick wall part, the first thick wall part being provided with an inlet channel, and one end of the inlet channel communicating with the accommodating cavity, while the other end of the inlet channel communicates with the outside; one end of an outlet channel communicates with the accommodating cavity by means of the filter, while the other end of the outlet channel communicates with an outer portion of the housing. The accumulator may be directly welded and fixed to a heat exchange core without requiring a pipeline connection, the risk of external leakage being small, and the anti-seismic performance being high.

Abstract: A fluid management assembly and a thermal management system. The fluid management assembly has a first chamber and a first valve core located in the first chamber. The fluid management assembly has a throttle chamber. The first valve core has a conduction channel. The first chamber can communicate with other portions by means of a throttle channel or the conduction channel.

Abstract: An electric pump includes a pump housing, a rotor assembly, a stator assembly, an isolation sleeve, a heat dissipation plate and an electric control board. The pump housing defines a pump inner chamber; the pump inner chamber is partitioned into a first cavity and a second cavity by the isolation sleeve; the rotor assembly is disposed in the first cavity; the stator assembly and the electric control board are disposed in the second cavity; the isolation sleeve comprises a bottom portion; at least a portion of the heat dissipation plate is disposed between the electric control board and the bottom portion; at least a portion of the bottom portion and at least a portion of the heat dissipation plate are in direct contact, or are filled with thermal silicone grease or thermal silica therebetween, or are provided with a thermal patch therebetween.

Abstract: An electronic expansion valve includes a valve needle screw assembly which includes a valve needle, a valve needle sleeve, a washer part, a spring, and a screw assembly. The valve needle sleeve includes a circumferential wall part and a fitting part. The inner diameter of the fitting part is smaller than the inner diameter of the circumferential wall part. The screw assembly includes a lower stopper part, a valve needle support part, and an upper stopper part. The lower stopper part abuts against the washer part. The valve needle support part abuts against the fitting part of the valve needle sleeve. The upper stopper part abuts against the spring. The distance between the valve needle support part and the washer part is D1; the distance between the valve needle support part and the upper end of the fitting part is D2; and D1?D2.

Abstract: A plate heat exchanger includes a first plate sheet and a second plate sheet. A blocking member is disposed between a front surface of the second plate sheet and a back surface of the first plate sheet. The blocking member is located between a first corner hole and a second corner hole of the second plate sheet, and one end of the blocking member is located on a side portion of the second plate sheet. A first corner hole of the second plate sheet bypasses the other end of the blocking member to communicate with a second corner hole of the second plate sheet. In the plate heat exchanger, a blocking member is disposed between two plate sheets, accordingly fluid can be evenly distributed, and the plate heat exchanger has good heat exchange performance.

Abstract: A block and a fluid control device includes a first mounting cavity. A wall portion of a first fluid passage is provided with a first valve. A first mounting-cavity bottom wall includes a first sub-bottom wall, and the height of the first sub-bottom wall increases as the first sub-bottom wall extends from a first end of the first sub-bottom wall toward a second end of the first sub-bottom wall. The pressure drop across the block and the fluid control device is low.

Abstract: An electronic expansion valve includes a valve needle lead screw assembly, the valve needle lead screw assembly including a gasket portion, a spring and a lead screw assembly; the lead screw assembly includes a lead screw, the spring is sleeved outside the lead screw; the lead screw assembly includes a lower stop portion and an upper stop portion, the lower stop portion includes a lower flange portion or a main body portion, and the lower stop portion or the main body portion (1562) can abut against the gasket portion. The upper stop portion includes an upper flange portion and/or an upper stop ring, and the upper flange portion and/or the upper stop ring abut against the spring; a lower end of the spring abuts against the gasket portion.

Abstract: Provided are a control method, a control system and an electric valve. The control method includes steps described below. An actually measured setting parameter curve is acquired. A required setting parameter curve is acquired. Both the actually measured setting parameter curve and the required setting parameter curve represent a corresponding relationship between a position of the electric valve and a setting parameter. The actually measured setting parameter curve and the required setting parameter curve are fitted to acquire a position mapping curve. A setting required position is obtained according to a required setting parameter and the required setting parameter curve, and a setting actual position is acquired according to the setting required position and the position mapping curve. The electric valve is controlled to run toward the setting actual position of the electric valve.

Abstract: A fluid control assembly is provided, which includes a heat exchange core, a mounting block and a valve core member. At least a part of the valve core member is arranged in a first mounting hole passage of the mounting block, and the valve core member is sealable to a wall portion of the first mounting hole passage. In this way, the fluid control assembly includes a fluid flow passage that includes a first port, a second hole passage, a first hole passage, a first sub-passage, a communication hole, a second sub-passage, and a second port. A core body of the valve core member is operated under a pressure difference between the first sub-passage and the second sub-passage, to communicate or block the first sub-passage and the second sub-passage, to realize a constant flow direction of the fluid flow passage of the fluid control assembly.

Abstract: An electronic expansion valve includes the valve needle screw assembly which also includes an outer edge guide section, the electronic expansion valve includes an inner edge guide section matched with the outer edge guide section, in the process of the action of the valve needle of the electronic expansion valve, the outer edge guide section of the valve needle screw assembly is matched with the inner edge guide section of the electronic expansion valve, to provide the guide for the valve needle, relatively reducing the deviation of the valve needle relative to the valve port, thereby reducing the eccentric wear of the valve needle.

Abstract: A fluid heat exchange assembly includes a fluid control module and a fluid heat exchange module, the fluid control module includes a first connecting lateral portion, the fluid heat exchange module includes a second connecting lateral portion; the first connecting lateral portion and the second connecting lateral portion are oppositely and sealingly arranged; the fluid heat exchange module includes a heat exchange core and a connecting component fixed by welding; the fluid control module includes at least a first flow passage and a second flow passage; the fluid heat exchange module includes a first fluid communication cavity, and the second flow passage is in communication with the first fluid communication cavity; the connecting component includes a connecting channel, the connecting channel penetrates through the connecting component. The fluid heat exchange assembly reduces pipeline arrangement and is of a small and compact integral structure.

Abstract: The present disclosure provides an air conditioner, a control strategy of the air conditioner and an air conditioning system. The air conditioner includes a compressor, a first heat exchanger, a phase-change thermal-storage heat exchanger, a throttling device and a box. The throttling device is provided between the first heat exchanger and the phase-change thermal-storage heat exchanger. One of the first heat exchanger and phase-change thermal-storage heat exchanger functions as an evaporator and the other functions as a condenser. The box includes an air supply port and an air return port. The compressor, the first heat exchanger, the phase-change thermal-storage heat exchanger and the throttling device are mounted in the box, thereby facilitating installation of the air conditioner.

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 electric switch valve, comprising a valve base and a valve block. The valve base has an upper end surface, and is provided with a first outlet and a second outlet. The valve block has a matching portion and a notch portion. The matching portion is adhered to the upper end surface of the valve base, and can rotate relative to the valve base. The notch portion can be selectively communicated with the first outlet or the second outlet. The valve block further comprises at least one throttling portion. A channel formed in the throttling portion comprises at least one throttling orifice. A valve block, which can not only be applied in an electric switch valve, but also can be applied in valves used for other refrigeration systems so as to achieve the throttling function for the flow of a certain outlet.

Abstract: An electronic expansion valve and a thermal management assembly. The electronic expansion valve has a valve port and a valve core. A valve body includes a first flow portion, a second flow portion, a first cavity and a second cavity. The first flow portion comprises a first connection section and a first subsection, and the first subsection is directly in communication with the first cavity. The second flow portion comprises a second connection section and a second subsection, and the second subsection is directly in communication with the second cavity. In a clockwise direction, an angle formed between at least one of the center line of the first subsection and the center line of the second subsection and the center line of the valve core is an acute angle.

Abstract: A flow control device for use in a heat exchange system, including: a housing, a movable valve member and a drive control member, the housing being formed to have a mounting cavity, a first interface and a second interface, while the drive control member includes a control unit, a power output unit, a magnetic element and a detection element; the power output unit provides power to the movable valve member, while the detection element and the control unit are electrically connected, and the magnetic element and the power output unit are mutually assembled and oppositely fixed, the power output unit may drive the magnetic element to rotate; the detection element and the magnetic element are oppositely disposed, the detection element being located within the range of the magnetic field of the magnetic element, the detection element may sense a magnetic pole change of the magnetic element.

Abstract: An electronic expansion valve includes a valve seat assembly, a first pipe connecting portion, and a second pipe connecting portion. The valve seat assembly includes an outer wall portion, a valve port portion having a valve port, a first valve seat cavity, and a second valve seat cavity. The first valve seat cavity is located above the valve port portion. The second valve seat cavity is located below the valve port portion. The valve port is capable of communicating with the first valve seat cavity and the second valve seat cavity. The first pipe connecting portion is fixedly connected to the outer wall portion located above the valve port portion. The second pipe connecting portion is fixedly connected to the outer wall portion located below the valve port portion. The inner diameter of the second valve seat cavity is greater than the inner diameter of the second pipe connecting portion.

Abstract: An electric valve includes a stator assembly, a rotor, a circuit board assembly, a sleeve and a valve assembly. The stator assembly is arranged around the rotor. The sleeve isolates the stator assembly from the rotor. The stator assembly is electrically connected to the circuit board assembly. A valve port is formed in the electric valve. The rotor can drive the movement of the valve assembly with respect to the valve port. The electric valve further comprises a box body. The circuit board assembly is arranged in the box body. The box body includes a shell and a cover body. A seal ring is arranged at a joint of the shell and the cover body. The seal ring is compressed between the shell and the cover body. The cover body is fixedly connected to the shell by means of welding.