Carrier

A system includes an air conditioning system (502) including: a first unit (200) having a compressor (242) and a first heat exchanger (508); a second unit (250) having a second heat exchanger (514); the air conditioning system (502) configured to circulate a refrigerant between the first unit (200) and the second unit (250); an energy storage device (240) configured to power the compressor (242); a controller (220); and a thermal management system (600) having a third heat exchanger (602), the third heat exchanger (602) configured to receive refrigerant from the air conditioning system (502) in certain modes of operation; the thermal management system (600) configured to supply fluid to the energy storage device to provide one of heating and cooling of the energy storage device.

This application provides a speed measuring and direction finding device (100) that measures a rotation speed and finds a rotation direction of a rotation shaft (101), the speed measuring and direction finding device (100) including: a rotation shaft (101); a notch measurement portion (102) formed by cutting a part on a surface of the rotation shaft (101); an eddy current displacement sensor (103) disposed corresponding to the notch measurement portion (102); and an eddy current signal processing module (200) connected to the eddy current displacement sensor (103), and configured to receive and process an eddy current signal from the eddy current displacement sensor (103) when the rotation shaft (101) rotates, in which the notch measurement portion (102) at least has a first inclined surface (104) and a second inclined surface (105) that are formed by cutting the surface of the rotation shaft (101) and are provided along a rotation direction of the rotation shaft (101), and the first inclined surface (104) and the second inclined surface (105) have different inclination angles with respect to the surface of the rotation shaft (101). The speed measuring and direction finding device (100) has a simple and compact structure and is convenient to use, and only one asymmetrical notch measurement portion (102) opened in the surface of the rotation shaft (101) and one corresponding eddy current displacement sensor (103) are provided, so that requirements on an installation space is low, and the speed measuring and direction finding device (100) can be better applied to different use occasions of the rotation shaft (101).

A liquid desiccant distributor/fluid distributor (102) and a dehumidifier (100) are disclosed. The dehumidifier (100) includes a contact media (140), a liquid desiccant sump (150) configured to collect liquid desiccant flowed over the contact media (140), and the liquid desiccant distributor (102) configured to evenly distribute the liquid desiccant over the contact media (140). The liquid desiccant distributor includes a liquid desiccant distributor box (104) having a tray (106) defined along a longitudinal span of the liquid desiccant distributor box (104), and a plate (110) configured to collect the excess liquid desiccant overflowed from the tray (106) thereover. The plate (110) includes apertures (208) configured to dispense the collected liquid desiccant to the contact media (140). The tray (106) is defined to uniformly distribute the liquid desiccant over the plate (110), which, when the liquid desiccant accumulates up to a standing height where static head pressure is greater than the surface tension, dispenses the liquid desiccant to the contact media (140) uniformly.

This application provides a cascaded heat pump system (100) including a first heat pump circuit and a second heat pump circuit, in which the first heat pump circuit includes a first compressor (102), a first four-way valve (103), a second four-way valve (104), an intermediate heat exchanger primary side (1051), a first expansion valve (106), and a first heat exchanger (107). The second heat pump circuit includes a second compressor (108), an external medium heat exchanger (109), a second expansion valve (110), and an intermediate heat exchanger secondary side (1052). A first four-way valve first valve port (1032) communicates with a second four-way valve inlet valve port (1041), and a second four-way valve first valve port (1042) communicates with the intermediate heat exchanger primary side (1051). Operation modes of the cascaded heat pump system (100) can be flexibly switched, thereby solving a problem that switching of working conditions of the cascaded heat pump system (100) is complex and a temperature is output unstably during the switching.

An air conditioning system (100) includes a first unit (200) including a compressor (242); a controller (220); an energy storage device (240) configured to power the compressor (242); wherein the controller (220) is configured to execute a safety process to initiate discharging the energy storage device (240) under certain conditions.

A fluidic connector (110) for a refrigeration system (100) is disclosed. The fluidic connector (110) comprises a plate (116) having a hole configured to allow a pipe (202) to be accommodated therein, wherein the pipe (202) comprises a flange (204) radially extending outward from an end of the pipe (202). The fluidic connector (110) further includes one or more fasteners (208) configured to reversibly secure the plate (116) to an opposable structure (114), with the flange (204) of the pipe (202) being clamped between the plate (116) and the opposable structure (114).

A transportation refrigeration system (100), having a cargo box (120) extending from a front end (130) to an aft end (140) and defining an interior cargo space (122) for transporting goods; a transportation refrigeration unit (a TRU) (150) at the front end of the cargo box, wherein the TRU has a cooling system (155) to maintain the interior cargo space at a set temperature, and wherein the TRU has a controller (160), a power source (245) operationally coupled to the controller (160), and a dump load circuit (450) operationally coupled to the controller (160) and the power source (245), wherein the power source (245) has a subsystem (235), and the controller (160) is configured to control the dump load circuit (450) to increase a load on the power source (245), thereby removing soot buildup from the subsystem (235).

A method of performing thermal management of an energy storage device (240; 702) includes providing an energy storage device (240; 702) selectively connectable to an air conditioning system and including a plurality of individual cells (702a-702e). The method includes evaluating a temperature of the plurality of individual cells (702a-702e) to determine a most relevant temperature parameter of the energy storage device (240; 702), comparing the most relevant temperature parameter of the energy storage device (240; 702) to a desired operating temperature range of the energy storage device (240; 702), and adjusting one or more parameters associated with the energy storage device (240; 702) in response to determining that the most relevant temperature parameter of the energy storage device (240; 702) is outside of the desired operating temperature range.

An air conditioning system (700) includes a vapor compression loop (704) having a compressor (710), a first expansion device (714a), a second expansion device (714b), a first heat exchanger (712), a second heat exchanger (716), and a working fluid is configured to circulate within the vapor compression loop (704). An electric energy storage device (702) is selectively operable to supply power to a component of the air conditioning system (700) and a thermal management system (730) is thermally and fluidly coupled to the vapor compression loop (704) at a position between the first expansion device (714a) and the second expansion device (714b). Expansion of the working fluid within at least one of the first expansion device (714a) and the second expansion device (714b) is controllable in response to a thermal demand of the electric energy storage device (702).

Disclosed herein is an air handling unit (AHU) (100) for use with an air conditioning system. The AHU (100) comprises a housing (102) defining the shape of the AHU (100), through which air is moved; a heat exchanger (110) is disposed inside the housing (102). The heat exchanger (110) is configured to facilitate a transfer of heat to and from the air moving through the housing (102). The AHU (100) further comprises a diagonal-flow fan (120) disposed inside the housing (102), wherein an air inflow into the fan (120) and/or an air flow path through the fan (120) is substantially axial, aligned along an axis of rotation (112) of the fan, and wherein the AHU (100) has a height-to-width ratio in a range between 1.8 and 2.0.