Electric fluid heater for a vehicle, including a heating block with an inlet and an outlet for the fluid, a first channel for the fluid intended to flow between the inlet and the outlet, a first tube and a second tube with opposing ends mounted in headers, the tubes having heating elements. The first channel is delimited by a top plate and a bottom plate sealingly connected to the first tube, the second tube and the headers.

A thermal system for a vehicle includes a high temperature coolant loop thermally coupled to a heater core, a low temperature coolant loop thermally coupled to at least one of an electric motor and power electronics, and a first four-way valve configured to selectively fluidly couple the high temperature coolant loop and the low temperature coolant loop such that coolant heated by the electric motor and/or the power electronics is directed to the heater core to facilitate heating of an airflow passing thereby.

A highly efficient heating system for an electric motor vehicle embodies a heat exchanger for warming passenger compartment air and an electrically powered radiant heating source for heating fluid to be circulated through the heat exchanger. The radiant heating source can be infrared, microwave or other frequency selected to efficiently heat the fluid to be circulated through the heat exchanger.

A thermal management system includes a first flow path through which cooling water is circulatable, a radiator provided in the first flow path to cool the cooling water, a second flow path which branches from a first branch portion of the first flow path and joins a first junction portion of the first flow path and allows the cooling water which passes through the radiator to flow through the first branch portion, a heater provided in the second flow path to heat the cooling water, a heater core provided on a downstream side of the heater in the second flow path and warming air with the cooling water heated by the heater, a third flow path which branches from a second branch portion on a downstream side of the heater core in the second flow path and joins a second junction portion on an upstream side of the heater core in the second flow path, and a switching unit provided in the second branch portion and switching a flow direction of the cooling water which passes through the heater core to at least one of the first junction portion and the second junction portion.

A control assembly for a thermal management system for a high voltage battery of a plug-in electric vehicle may include a control valve and a control module. The control valve may be operable to control a flow of battery coolant to the high voltage battery from a refrigerant cooling circuit and from a cabin heater core cooling circuit. The control module may be configured to selectively operate the control valve to select a cooling mode, including a refrigerant only mode, a core mode, and a combined mode in which both the refrigerant cooling circuit and the cabin heater core cooling circuit provide cooling to the high voltage battery.

In one aspect, a cab heating system for an electric work vehicle includes a hydraulic circuit forming a hydraulic flow loop through which a hydraulic fluid is directed for supply to a hydraulic component of the electric work vehicle. The system also includes a coolant circuit forming a coolant flow loop through which a coolant fluid is circulated, with the coolant circuit comprising a coolant heat exchanger. Additionally, the system includes a circuit heat exchanger thermally coupling the hydraulic circuit to the coolant circuit to allow heat to be transferred between the hydraulic fluid and the coolant fluid, and a fan configured to direct an airflow across the coolant heat exchanger such that heat is transferred from the coolant fluid to the airflow prior to delivery of the airflow into an interior of a cab of the electric work vehicle.

An electric heating device includes a housing having a partition wall which separates a connection chamber from a heating chamber for dissipating heat and from which at least one receiving pocket, protruding into the heating chamber as a heating rib tapering towards its lower, closed end protrudes. A PTC heating element includes at least one PTC element and conductor tracks for energizing the PTC element with different polarities. The conductor tracks are electrically conductively connected to the PTC element and are electrically connected in the connection chamber. A pressure element is received which holds heat extraction surfaces of the PTC element abutted against oppositely disposed inner surfaces of the receiving pocket. The pressure element includes a sheet metal strip which, by punching and bending, forms spring segments protruding from the plane of the sheet metal strip. The spring elements are provided in a planar manner distributed over a heat extraction surface of the PTC element provided adjoining the respective pressure element.

A thermal management system (1) for controlling the temperature in a cabin (2) and an energy storage system (3) of an electric vehicle including a vehicle component (4). Also, an electric vehicle comprising the thermal management system (1). The system (1) comprises one heat exchanger (5) and one heater (6) arranged to heat the cabin (2) and to provide heat to the heat exchanger (5). The system (1) comprises a first valve (7) for thermal fluid, a first temperature sensor (8) and a control unit (9) arranged to determine (S4) if the cabin (2) or the energy storage system (3) is to be heated, based on a received temperature of the first temperature sensor (8), the temperature in the cabin (2) and in the energy storage system (3), to determine (S5) if there is excess heat in the thermal fluid, and to control (S6) the opening and closing of the first valve (7) so that the thermal fluid is provided to the heater (6) when there is excess heat in the thermal fluid and any of the energy storage system (3) and the cabin (2) is to be heated.

An electric heater includes a heating element, a heat transfer wall and a control module. The electric heater includes a fluid chamber, an inlet, and an outlet. The fluid chamber is in communication with the inlet and the outlet, the heat transfer wall is a portion of a wall part forming the fluid chamber, the heating element is fixed or limited to at least a portion of the heat transfer wall, the heating element is located outside the fluid chamber, and at least a portion of the heating element is in contact with the heat transfer wall. The electric heater includes a cover body wall, which is another portion of the wall part forming the fluid chamber. The control module is located outside the cover body wall, the control module is located outside the fluid chamber, the control module is electrically connected to the heating element.

A vehicle air conditioning system provides a heat exchanger and a vehicle air conditioning system comprising same, which can simplify the overall structure and can easily perform cooling/heating of air for air conditioning and dehumidification heating by using an integrated heat exchanger which is selectively supplied with low- and high-temperature cooling water by a supply valve to perform heat exchange.