A heat exchanger comprises a jacket element and an insert element. The jacket element is configured as a fluid channel for a fluid to be tempered. The insert element is arranged in the fluid channel. The insert element includes web elements which are connected to the jacket element at different locations. Some of the web elements contain web element channels which are fluidly connected with the jacket element, so that in the operating state, a heat transfer fluid which is supplied to the jacket element can flow through the web elements. The jacket element contains chambers for a heat transfer fluid. The chambers contain one inlet opening and one outlet opening for the heat transfer fluid. The inlet opening and the outlet opening of the chamber are connected to the web element channels of two web elements each, which belong to the same row of web elements.

Methods and system are provided for a heat exchanger. In one example, a system, comprises a mobile electronic device comprising a front cover and a rear cover, a heat exchanger arranged between the front cover and the rear cover, the heat exchanger comprising a fluid chamber arranged between an inner surface of a first plate and an inner surface of a second plate, and a wick material arranged within the fluid chamber, the wick material comprising a sintered material configured to allow a plurality of fluid passages to extend therethrough.

A heat pipe module includes at least one first pipe body and at least one second pipe body. The inner wall of the first pipe body defines a hollow chamber. A part of the second pipe body is disposed in the hollow chamber, and the external wall of the part of the second pipe body directly contacts the first pipe body.

A heat dissipation device is provided. The heat dissipation device includes a container including a first plate, and a second plate spaced apart from the first plate to define an interior space, at least one filler disposed between the first plate and the second plate and configured to support the first plate and the second plate, a wick layer located on an inner wall defined in the interior space by the first plate or the second plate, and a working fluid configured to flow in the interior space in a gaseous state, and flow in the wick layer in a liquefied state, wherein the container further includes a fluoride-based polymer having a predetermined gas permeability.

Particular embodiments described herein provide for an electronic device that can be configured to include a vapor chamber and means of attachment for the vapor chamber. The vapor chamber can include one or more columns, where at least a portion of the columns include fiber braids and one or more wicks. At least one of the wicks can also include the fiber braids. The columns can be braised to a top plate or a bottom plate of the vapor chamber. The vapor chamber can be secured over a heat source using a vapor chamber securing means that can include spring arms. The spring arms can bend, flex, rotate, etc. to absorb some of the force when vapor chamber is secured over the heat source.

A heat dissipation device is provided and includes a vapor chamber unit, a heat pipe set provided on an outer surface of the vapor chamber unit, a first fin set provided on the outer surface of the vapor chamber unit and sleeving the heat pipe set, and a second fin set stacked on the first fin set and sleeving the heat pipe set, where the fin arrangement direction of the first fin set is different from the fin arrangement direction of the second fin set.

An immersion-type porous heat dissipation substrate structure is provided. The immersion-type porous heat dissipation substrate structure includes a porous heat dissipation base formed by sintering of metal powder. The porous heat dissipation base is immersed in a two-phase coolant for increasing an amount of bubbles that is generated, and has a porosity that is controlled to be between 5% and 50%. Or, the porous heat dissipation base has more than one porosity.

A heat-dissipating device includes a condenser and an evaporator. The condenser includes a shell and a main capillary wick. The shell has a chamber and a through hole communicating with the chamber. The main capillary wick is disposed in the chamber. The evaporator has an evaporating section, a gas conduit and a liquid conduit. The evaporating section has a gas cavity, and the liquid conduit communicating with the chamber and filling with a liquid. The liquid conduit having a hole communicating with the gas cavity is inserted in the gas conduit and the gas cavity. A stepped area is formed between the liquid conduit and the chamber for gathering the liquid flowing into the liquid conduit.

A heat pipe structure includes a main body. The main body has an internal airtight chamber. At least one capillary structure is disposed on a wall face of the airtight chamber. A working fluid is filled in the airtight chamber. The main body has at least one stress concentration section. A retaining reinforcement member is disposed on the capillary structure corresponding to the stress concentration section for reinforcing the capillary structure and securely retaining the capillary structure on the wall face. When the heat pipe is flexed, bent and deformed, the retaining reinforcement member serves to prevent the capillary structure disposed on the stress concentration section from cracking or damaging.

A floating heat pipe assembly includes a floating heat pipe and a clamp collar used with the floating heat pipe. The floating heat pipe has a flattened section that has a flattened pipe size smaller than a pipe size of any other section of the floating heat pipe, so that the floating heat pipe is adjustable at the thinner flattened section for other sections of the floating heat pipe located at two opposite ends of the flattened section to displace to two positions having a height difference between them. The clamp collar is fitted on around the flattened section and includes two symmetrically arranged elastic clamping sections that elastically clamp on two opposite outer sides of the flattened section to hold the same in place, so that the sections of the floating heat pipe located at different heights do not deform to cause reduced or failed capillary action efficiency.