公开(公告)号：EP3453992A1

公开(公告)日：2019-03-13

申请号：EP17795474.0

申请日：2017-05-03

Applicant: BYD Company Limited

Inventor： TAN, Tingshuai ,  YE, Meijiao ,  CHEN, Xuefeng

IPC: F25B41/04 ,  B60H1/22

Abstract: This disclosure discloses a heat pump air-conditioning system and an electric vehicle. The system includes a Heating Ventilation and Air Conditioning (HVAC) assembly, a compressor, an outdoor heat exchanger, and a first plate heat exchanger, where the HVAC assembly includes an indoor condenser, an indoor evaporator, and an damper mechanism, the compressor is in communication with the indoor condenser, the indoor condenser is in communication with the outdoor heat exchanger, the outdoor heat exchanger is in communication with the indoor evaporator, the indoor evaporator is in communication with a low-pressure air inlet of the compressor, the indoor condenser is further in communication with the outdoor heat exchanger through a first enthalpy-increased branch, the outdoor heat exchanger is further in communication with a moderate-pressure air inlet of the compressor through a second enthalpy-increased branch, the first enthalpy-increased branch and the second enthalpy-increased branch exchange heat by using the first plate heat exchanger, the second enthalpy-increased branch is provided with a first expansion valve, and the outdoor heat exchanger is in communication with the first plate heat exchanger through the first expansion valve. Therefore, effects, such as improving heating energy efficiency and satisfying regulatory requirements for defrosting and defogging, can be achieved, and low-temperature heating performance of the system can be significantly improved by using the enthalpy-increased branch.

公开(公告)号：EP3453990A1

公开(公告)日：2019-03-13

申请号：EP17795470.8

申请日：2017-05-03

Applicant: BYD Company Limited

Inventor： TAN, Tingshuai ,  YE, Meijiao ,  CHEN, Xuefeng

IPC: F25B30/02 ,  B60H1/32

Abstract: This disclosure discloses a heat pump air-conditioning system and an electric vehicle. The heat pump air-conditioning system includes: an indoor condenser, an indoor evaporator, a compressor, an outdoor heat exchanger, and a first plate heat exchanger, the compressor is in communication with the indoor condenser, the indoor condenser is in communication with the outdoor heat exchanger through a first throttle branch or a first through-flow branch, the outdoor heat exchanger, through a second throttle branch or a second through-flow branch, is in communication with a first branch that is open or closed and is in communication with a second branch that is open or closed, the first branch is in communication with a low-pressure air inlet of the compressor, the second branch is in communication with the indoor evaporator, the indoor evaporator is in communication with a low-pressure air inlet of the compressor, and an enthalpy-increased branch is further disposed in the system, to improve a heating effect in low-temperature heating mode. Hence, effects, such as improving heating energy efficiency and regulatory requirements for defrosting and defogging, can be achieved, and the enthalpy-increased branch can significantly improve low-temperature heating performance of the system.

公开(公告)号：EP3453544A1

公开(公告)日：2019-03-13

申请号：EP17795476.5

申请日：2017-05-03

Applicant: BYD Company Limited

Inventor： PENG, Shaoheng ,  YE, Meijiao ,  CHEN, Xuefeng

IPC: B60H1/00

Abstract: This disclosure discloses a heat pump air-conditioning system and an electric vehicle. The system includes a Heating Ventilation and Air Conditioning (HVAC) assembly, a compressor, and an outdoor heat exchanger, where the HVAC assembly includes an indoor condenser, an indoor evaporator, and a damper mechanism, the damper mechanism is used for selectively opening a ventilation channel of the indoor condenser and/or a ventilation channel of the indoor evaporator, an outlet of the compressor is in communication with an inlet of the indoor condenser, an outlet of the indoor condenser is in communication with an inlet of the outdoor heat exchanger selectively through a first throttle branch or a first through-flow branch, an outlet of the outdoor heat exchanger is in communication with an inlet of the indoor evaporator selectively through a second throttle branch or a second through-flow branch, an outlet of the indoor evaporator is in communication with an inlet of the compressor, the outlet of the indoor condenser is in communication with the inlet of the compressor through a third throttle branch that is selectively open or closed, and the outlet of the outdoor heat exchanger is in communication with the inlet of the compressor through a fourth throttle branch that is selectively open or closed. Therefore, effects, such as improving heating energy efficiency and satisfying a defrosting requirement, can be achieved.

公开(公告)号：EP3322941A1

公开(公告)日：2018-05-23

申请号：EP16810938.7

申请日：2016-06-07

Applicant: BYD Company Limited

Inventor： NIE, Huanhuan ,  CHEN, Xuefeng ,  YE, Meijiao ,  TAN, Tingshuai

IPC: F24F5/00 ,  F25B41/00 ,  B60H1/32

CPC classification number: F24F5/0042 ,  B60H1/00899 ,  B60H1/00921 ,  B60H2001/00928 ,  B60H2001/00942 ,  B60H2001/00949 ,  F24F5/00 ,  F25B5/04 ,  F25B6/04 ,  F25B25/005 ,  F25B2313/02741 ,  F25B2339/047 ,  F25B2400/0409 ,  F25B2400/0411

Abstract: An air conditioning system (100) for a vehicle and a vehicle having same are provided. The air conditioning system (100) includes: a compressor (1), including a compressor inlet (12) and a compressor outlet (12); a first plate heat exchanger (2), including a pair of first inlet (21) and first outlet (22), and a pair of second inlet (23) and second outlet (24); a heat radiator (3), connected between the second inlet (23) and the second outlet (24), disposed inside the vehicle; a second plate heat exchanger (71), including a pair of third inlet (711) and third outlet (712), and a pair of fourth inlet (713) and fourth outlet (714), and disposed downstream of the first plate heat exchanger (2); an external air heat exchanger (72), disposed outside of the vehicle, connected between the fourth inlet (713) and the fourth outlet (714); a first throttle control assembly (5), disposed between the first outlet (22) and the third inlet (711); and an internal refrigeration assembly (9), disposed between the compressor inlet (11) and the third outlet (712). And provided a vehicle comprising the air conditioning system (100). The air conditioning system (100) for the vehicle solves some problems existing in the prior art and caused by the direction switching of the refrigerant, such as a cooling or heating delay of, and a poor comfort, and also, the air conditioning system (100) for the vehicle shows a low power consumption.

公开(公告)号：EP3453929A1

公开(公告)日：2019-03-13

申请号：EP17795473.2

申请日：2017-05-03

Applicant: BYD Company Limited

Inventor： HUANG, Jian ,  CHEN, Xuefeng ,  YE, Meijiao

IPC: F16K1/00

Abstract: This disclosure discloses an expansion switch valve, including a valve body (500), where an inlet (501), an outlet (502), and an internal passage in communication between the inlet and the outlet are formed on the valve body, a first valve plug (503) and a second valve plug (504) are mounted on the internal passage, the first valve plug (503) makes the inlet and the outlet in direct communication or out of communication, and the second valve plug (504) makes the inlet and the outlet in communication through a throttle port (505) or out of communication. In this way, an opening/closure control function and/or a throttle expansion control function for a refrigerant can be implemented by integrally mounting the first valve plug and the second valve plug on the internal passage of the same valve body. A structure is simple, and production and installation are easy. In addition, when the expansion switch valve provided in this disclosure is applied to a heat pump system, pipeline connections are simplified, costs are reduced, a filling amount of refrigerant of the entire heat pump system is reduced, and oil return of a compressor is facilitated.

公开(公告)号：EP3319822A1

公开(公告)日：2018-05-16

申请号：EP16810939.5

申请日：2016-06-07

Applicant: BYD Company Limited

Inventor： NIE, Huanhuan ,  CHEN, Xuefeng ,  YE, Meijiao ,  TAN, Tingshuai

IPC: B60H1/00

CPC classification number: B60H1/00921 ,  B60H2001/00928 ,  B60H2001/00949

Abstract: An air conditioning system (100) for a vehicle and a vehicle having the same are provided. The air conditioning system (100) includes: a compressor (1), having a compressor inlet (11) and a compressor outlet (12); a first plate heat exchanger (2), including a pair of first inlet (21) and first outlet (22), and a pair of second inlet (23) and second outlet (24); a heat radiator (3), connected between the second inlet (23) and the second outlet (24); an external air heat exchanger (72), disposed downstream of the first plate heat exchanger (2); a second plate heat exchanger (71), including a pair of third inlet (711) and third outlet (712), and a pair of fourth inlet (713) and fourth outlet (714); a motor radiator (74), connected between the fourth inlet (713) and the fourth outlet (714); a first throttle control assembly, disposed between the first outlet (22) and an inlet (721) of the external air heat exchanger (72); and an internal refrigeration assembly disposed between the compressor inlet (11) and an outlet (722) of the external air heat exchanger (72). The air conditioning system (100) for the vehicle shows a low power consumption, which can increase an endurance mileage of an electric vehicle and a hybrid vehicle.