Reference will now be made in detail to embodiments of the present claimed subject matter, examples of which are illustrated in the accompanying drawings. While the claimed subject matter will be described in conjunction with these embodiments, it will be understood that they are not intended to limit the claimed subject matter to these embodiments. On the contrary, the claimed subject matter is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the claimed subject matter as defined by the appended claims. Furthermore, in the following detailed description of the present claimed subject matter, numerous specific details are set forth in order to provide a thorough understanding of the present claimed subject matter. However, it will be evident to one of ordinary skill in the art that the present claimed subject matter may be practiced without these specific details. In other instances, well known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the claimed subject matter.
Some portions of the detailed descriptions that follow are presented in terms of procedures, logic blocks, processing, and other symbolic representations of operations on data bits within a computer memory. These descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art. A procedure, logic block, process, etc., is here, and generally, conceived to be a self-consistent sequence of steps or instructions leading to a desired result. The steps are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated in a computer system. It has proven convenient at times, principally for reasons of usage, to refer to these signals as bits, bytes, values, elements, symbols, characters, terms, numbers, or the like.
It should be borne in mind, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities. Unless specifically stated otherwise as apparent from the following discussions, it is appreciated that throughout the present claimed subject matter, discussions utilizing terms such as “setting,” “storing,” “scanning,” “receiving,” “sending,” “disregarding,” “entering,” or the like, refer to the action and processes of a computer system or similar electronic computing device, that manipulates and transforms data represented as physical (electronic) quantities within the computer system's registers and memories into other data similarly represented as physical quantities within the computer system memories or registers or other such information storage, transmission or display devices.
For certain types of computing devices, such as thin client devices, a cooling mechanism that uses moving parts is not desirable because it increases noise level and reduces reliability. This is due in part to that fact that thin client devices are often deployed in places where reliability and low noise level is of paramount importance. For instance, thin clients are often deployed in financial centers, banking centers, administrative centers, call centers, medical centers, and various kiosks. The importance of reliability, for example, in a financial center is self evident as a crash caused by a failure in the cooling mechanism can lead a serious transaction error. Furthermore, since a user of a thin client device is often situated in close proximity to the thin client device, a high noise level can irritate the user and lead to decreased productivity.
In response to the above described issues as well as other concerns, embodiments describe various technologies for efficiently cooling a computer system. In one example, an embodiment illustrates a cooling mechanism that does not require the use of a fan or other types of moving parts. Also, in another example, the cooling mechanism is flexible and can adapt to different physical orientations of the computer system. As such, a computer system is efficiently cooled whether it is in a vertical position, a horizontal position, or a mounted position.
With reference still to
Also, the computing device 100 is configured to be operable under different orientations (e.g., mounted on the rear portion of a flat screen, placed horizontally on a desk, or positioned vertically on a desk). The computing device 100 is designed such that when the computing device 100 is operating under a particular orientation, then at least one or more of the available thermal pathways is able to transfer heat to air surrounding the computing device 100.
Additionally, a first divider 118 and a second divider 116 reside within the enclosure 102 to define a first region 176, a second region 172, and a third region 174. A function served by the first divider 118 is to create a thermal wall between the first region 176 and the third region 174 such that the heat being dissipated by remote fins 106 residing within the first region 176 does not flow back towards the third region 174. By having the first divider 118, heat dissipated by the remote fins 106 residing within the first region 176 is more effectively directed away from the computing device 100.
Similarly, a function served by the second divider 116 is to create a thermal wall between the second region 172 and the third region 174 such that the heat being dissipated by remote fins 104 residing within the second region 172 does not flow back towards the third region 174. By having the second divider 116, heat dissipated by the remote fins 104 residing within the first region 176 is more effectively directed away from the computing device 100.
The processor and the chipset (both not shown) reside within the third region 174 of the enclosure 102. A first cooling assembly (e.g., heat sink and heat pipe) is thermally coupled to the processor. The first cooling assembly includes the first heat sink 110 for transferring heat from the processor to surrounding air and the first heat pipe 114 thermally coupled to the first heat sink 110 to facilitate the transfer of heat from the first heat sink 110 to remote fins 106. Remote fins 106 reside within the first region 174. In one embodiment, the first heat pipe 114 is appropriately curved such that the processor and the remote fins 106 are substantially parallel with respect to each other. In one embodiment, the first heat pipe 114 includes a metal weave interior for conducting heat. In another embodiment, the first heat pipe 114 includes a copper enclosure with a wicking structure for transferring liquid (e.g., water).
Optionally, a second cooling assembly (e.g., heat sink and heat pipe) is thermally coupled to the chipset. The second cooling assembly includes a second heat sink 108 for transferring heat from the chipset to surrounding air and a second heat pipe 112 thermally coupled to the chipset to facilitate the transfer of heat from the second heat sink 108 to remote fins 104. Remote fins 104 reside within the second region 172.
A more detailed view of the remote fins 104, remote fins 106, first heat sink 110, second heat sink 108, first heat pipe 114, and second heat pipe 112 are shown in
When thermally coupled, the first heat sink 110 absorbs heat from the processor. The absorbed heat is dissipated in at least two ways. First, the first heat sink 110 dissipates the absorbed heat into surrounding air via a number of heat sink fins 130 (illustrated in
Likewise, when thermally coupled, the second heat sink 108 absorbs heat from the chipset. The absorbed heat is dissipated in at least two ways. First, the second heat sink 108 dissipates the absorbed heat into surrounding air via a number of heat sink fins 132 (illustrated in
In this manner, embodiments describe at least two approaches for cooling the processor and the chipset. Also, the first heat pipe 114 and/or the second heat pipe 112 can be a sintered heat pipe. In one embodiment, the sintered heat pipe comprises a copper enclosure with a wicking structure for transferring a fluid (e.g., water). The fluid is utilized to move heat from one location of the heat pipe to another location of the heat pipe. In particular, with reference to the present claimed subject matter, a fluid within a heat pipe is used to transfer the heat from a processor towards a number of heat dissipating fins.
Furthermore, as stated above, an advantage of the present claimed subject matter is that the cooling mechanism is flexible and can adapt to different physical orientations of the computer device 100. As such, the computer system 100 is efficiently cooled whether it is in a vertical position, a horizontal position, or a mounted position. To illustrate,
Similarly,
At block 1404, heat is directed away from a processor (e.g., central processing unit) residing within the computing device 100. In particular, heat is directed away from the processor in at least the ways described in block 1408 and 1410. At block 1406, a first heat sink 110 is thermally coupled to the processor. In one embodiment, the first heat sink 110 has a plurality of evenly spaced aluminum fins (e.g, heat sink fins 130). The spacing between the aluminum fins is calculated to maximize heat dissipation. Also, in one embodiment, the first heat sink 110 is attached to the processor via a copper insert 122. Further, the first heat sink 110 can be made of different types of thermal conductors other than copper and aluminum. For example, gold and silver are efficient thermal conductors.
At block 1408, heat from the processor is dissipated via the first heat sink 110 into surrounding air. In one example, the copper insert 122 is in thermal contact with the processor and absorbs heat from the processor. The absorbed heat is then dissipated by the plurality of fins (e.g., heat sink fins 130).
At block 1410, heat from the processor is transferred with a first heat pipe 114 to a first plurality of remote fins 106. In this way, the first heat pipe 114 provides another way of dissipating the heat from the first heat sink 110. The plurality of remote fins 106, in one example, includes an array of rectangular aluminum fins that dissipate heat efficiently.
Also, in one embodiment, the first heat sink 110 is coupled with a thermal pad and the thermal pad is in physical contact with a chassis of the computing device 100. In this way, heat from the first heat sink 110 is directed into the chassis, which dissipates heat into surrounding air.
At block 1412 (optional step), heat is directed away from chipset residing within the computing device 100. Again, heat is directed away from the chipset in at least two ways described in block 1416 and 1418. At block 1414, a second heat sink 108 is coupled to the chipset. At block 1416, heat from the second heat sink 108 is dissipated into surrounding air. At block 1418, heat from the second heat sink 108 is transferred with the second heat pipe 112 into a second plurality of remote fins 104.
At block 1420, heat from the computing device 100 is dissipated with a plurality of vents (e.g., vent 152 of
At block 1504, an enclosure 102 is formed. In one embodiment, the enclosure 102 is designed such that if the computing device 100 is operating under a particular orientation, then at least one or more of the thermal pathways is able to transfer heat to air surrounding the computing device 100.
At block 1506, a first divider 118 (e.g., a perforated plate) residing within the enclosure 102 is provided. At block 1508, a second divider 116 residing within the enclosure 102 is provided. The first divider 118 and the second divider 116 define a first region 176, a second region 172, and a third region 174. The third region 174 (e.g., an interior region) is between the first region 176 and the second region 172. Also, a processor and a chipset reside within the third region 174 of the enclosure 102.
At block 1510, a processor residing within the third region 174 of the enclosure 102 is provided. At block 1512, a chipset residing within the third region 174 of the enclosure 102 is provided.
At block 1514, a first cooling assembly is thermally coupled to the processor. The first cooling assembly includes a first heat sink 110 for transferring heat from the processor to surrounding air and a first heat pipe 114 thermally coupled to the first heat sink 110 to facilitate the transfer of heat from the first heat sink 110 to a set of remote fins 106 residing within the first region 176. A key purpose of the first divider 118 is to create a thermal wall between the first region 176 and the third region 174 such that the heat being dissipated by the set of remote fins 106 residing within the first region 176 does not flow back towards the third region 174. By having the first divider 118, heat dissipated by the set of remote fins 106 residing within the first region 176 is more effectively directed away from the computing device 100.
At block 1516, optionally, a second cooling assembly is thermally coupled to the chipset. The second cooling assembly includes a second heat sink 108 for transferring heat from the chipset to surrounding air and a second heat pipe 112 thermally coupled to the chipset to facilitate the transfer of heat from the second heat sink 108 to a another set of remote fins 104 residing within the second region 172. At block 1522, the process ends.
Embodiments describe various technologies, such as different methods and systems, which allow a computing device 100 to be efficiently cooled while it operates under different orientations (e.g., vertical position, horizontal position, mounted position). Moreover, embodiments accomplish this without using a cooling mechanism that includes moving parts, such as a fan. As a result, an end user is able to position the computing device 100 (e.g., a thin client computer) in different orientations without paralyzing the cooling mechanism. Furthermore, because the cooling mechanism does not utilize moving parts, the computing device 100 benefits from increased reliability and reduced noise level.
In the foregoing specification, embodiments have been described with reference to numerous specific details that may vary from implementation to implementation. Thus, the sole and exclusive indicator of what is, and is intended by the applicants to be the claimed subject matter is the set of claims that issue from this application, in the specific form in which such claims issue, including any subsequent correction. Hence, no limitation, element, property, feature, advantage or attribute that is not expressly recited in a claim should limit the scope of such claim in any way. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.