A vehicle thermal management system, may include a heating, ventilation, and air conditioning (HVAC) subsystem including an HVAC casing in which a heater core and an evaporator are received; and a cooling subsystem including a coolant loop through which a coolant circulates, wherein the heater core is located on the downstream side of the evaporator in an air flow direction, and the coolant loop is thermally connected to the heater core. The HVAC subsystem includes: an air mixing chamber located on the downstream side of the heater core within the HVAC casing; a discharge pipe fluidically communicating with the air mixing chamber, and being opened to the outside of a passenger compartment; and a flap configured for selectively opening and closing the discharge pipe.

A heater element includes: a honeycomb structure having an outer peripheral wall and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells each forming a flow path from a first end face to a second end face, the outer peripheral wall and the partition walls made of a material having a PTC property; and a pair of electrode layers provided on a surface of the outer peripheral wall. The honeycomb structure has a shape having a long axis and a short axis in a cross section orthogonal to a central axis.

The present application discloses an electric vehicle, and an electric heating device and a control system thereof. The electric heating device includes: n resistance heating units, independently electrically connected in parallel with each other; n switches, electrically connected in series with respective resistance heating units for independently controlling power-on or power-off of the respective resistance heating units; and a controller, configured to selectively turn on or turn off any at least one of the n switches according to a working condition of the electric vehicle, wherein n is a natural number equal to or greater than 2.

The present disclosure provides a split heater apparatus and a method of manufacturing the same, the split heater apparatus being capable of dividing a heating region into zones, heating the zones individually, and having components capable of being simply assembled, such that the number of components and the number of assembly processes are reduced.

An embodiment discloses a heating rod comprising: a ceramic substrate; and a heat-radiating element that is arranged in the ceramic substrate, wherein the ratio of the thickness of the ceramic substrate to the thickness of the heat-radiating element is between 1:2 and 1:50. The embodiment discloses a heater comprising: a case; a heat-radiating module that is arranged inside the case; and a power module that is electrically connected to the heat-radiating module, wherein the power module includes a substrate part, a heat sink that is connected to the substrate part, and a ventilation part through which a fluid flows in and out to/from the heat sink.

An electric heating device and a method for manufacturing an electric heating device with at least two plate pairs forming a fluid passage through which fluid can flow, which plate pairs are assembled from two plates and form a fluid passage between the two, wherein the plate pairs take on a predefined distance from one another and form a free space, wherein at least one heating unit is arranged in the free space between at least two of the plate pairs, which heating unit has at least one heating element and contact electrodes electrically connected thereto for making electrical contact with the at least one heating element. The invention also relates to such an electric heating device.

An electric heater for a vehicle includes a heat dissipation fin for heat-exchange with air, a ceramic element to emit heat by receiving a power-supply voltage, and a housing to support the heat dissipation fin and the ceramic element. The ceramic element includes a first positive temperature coefficient (PTC) element, and a second PTC element having a heating power greater than a heating power of the first PTC element.

A thermal management system for an electric vehicle includes an interior air conditioning part including an air inflow part, an air discharge part, a cooling core, a heating core arranged between the cooling core and the air discharge part, and an adjustment door. The adjustment door is selectively adjustable to control whether air from the cooling core may flow into the heating core. A heat transfer line connects an electric part core to the heating core for transferring that heat of the electric part to the heating core, in order to allow heat dissipation of the electric part through the heating core.

A heater (10) for heating a heat transfer medium, especially in a vehicle, with at least one heating element (14) built up with PTC material with a plurality of heat transfer medium flow ducts (30) passing through the heating element (14).

The invention relates to an electric radiator (1) for a motor vehicle comprising a rigid frame housing heating elements (18) and radiating elements (12) through which an air flow can pass, the radiator being provided with a temperature measurement device (2) comprising at least one temperature sensor (4) and a support element (5) comprising at least one housing (51) for one or more temperature sensors (4) and an electric radiator attachment device, characterised in that the attachment device associated with the support element (5) comprises at least one snap-fastening element (6) configured to cooperate with one of the radiating elements (12) of the radiator (1).