Patent ID: 12262503

DESCRIPTION OF THE REFERENCE NUMBERS OF THE DRAWINGS OF THE DESCRIPTION

1: front-placed air duct;2: rear-placed air duct;3: front-placed air sub-ducts;4: first heat dissipating element;5: second heat dissipating element;6: blocking plate;7: third heat dissipating element;8: flow guiding hood;9: outer shell;10: wind directing hood;11: mainboard;12: first mainboard region;13: second mainboard region;14: top plate;15: partition plates;16: fourth heat dissipating elements;17: fan member;18: first air sub-duct;19: second air sub-duct;20: third air sub-duct;21: flow guiding plate;22: flow directing plate;23: flow directing partition plate;24: flow directing through plate;25: first guide plate;26: first flow directing groove;27: second guide plate;28: second flow directing groove;29: cable raceways;30: foamed plastics;31: threading grooves;32: threading holes;33: avoiding holes;34: side plates;35: first power-supply module; and36: second power-supply module.

DETAILED DESCRIPTION

In order to make the objects, the technical solutions and the advantages of the present application clearer, the present application will be described in further detail below with reference to the drawings and the embodiments. It should be understood that the particular embodiments described herein are merely intended to interpret the present application, and are not intended to limit the present application.

The First Embodiment

Referring toFIGS.1-8, the heat dissipating device comprises a front-placed air duct1and a rear-placed air duct2that are sequentially arranged in the direction of the heat dissipating gas flow of the heat dissipating device, and the rear-placed air duct2and the front-placed air duct1are communicated. The front-placed air duct1comprises a plurality of front-placed air sub-ducts3, a plurality of first heat dissipating elements4and second heat dissipating elements5are provided inside the front-placed air duct1, the first heat dissipating elements4and the second heat dissipating elements5are located in different front-placed air sub-ducts3, the heat-dissipation amount of the first heat dissipating elements4within a unit time is greater than the heat-dissipation amount of the second heat dissipating elements5within the unit time, a blocking plate6is provided within the front-placed air sub-duct3corresponding to at least one of the second heat dissipating elements5, the blocking plate6has different specifications, and the blocking plates6of different specifications have unequal cross-sectional areas inside the corresponding front-placed air sub-ducts3. A third heat dissipating element7is provided inside the rear-placed air duct2, the front-placed air sub-ducts3that are closest to the third heat dissipating element7are a first air sub-duct18, a second air sub-duct19and a third air sub-duct20, a flow guiding hood8is provided between the first air sub-duct18, the second air sub-duct19and the third air sub-duct20on one hand and the rear-placed air duct2on the other hand, the flow guiding hood8comprises a flow guiding plate21and a flow directing plate22, the flow directing plate22comprises a flow directing partition plate23and a flow directing through plate24, the heat dissipating gas flows in the first air sub-duct18and the second air sub-duct19are converged by the flow guiding plate21and subsequently flow toward the third heat dissipating element7in the rear-placed air duct2via the flow directing through plate24, and the heat dissipating gas flow of the third air sub-duct20passes through the flow guiding plate21, is diverted by the first air sub-duct18and the second air sub-duct19, and subsequently leaves the third heat dissipating element7via the flow directing partition plate23.

In order to increase the coordinated heat-dissipation capacity of the heat dissipating device, in the present application the flowing path of the heat dissipating gas flow inside the heat dissipating device is optimized, to increase the overall heat-dissipation capacity of the heat dissipating device, and further increase the heat-dissipation capacity for the heat dissipating elements located behind the CPU, whereby all of the temperatures of the component elements inside the heat dissipating device may be effectively controlled within the standards. The power source of the heat dissipating device is a fan member17, and the fan member17generates a heat dissipating gas flow. A front-placed air duct1and a rear-placed air duct2are sequentially arranged in the flowing direction of the heat dissipating gas flow, and the front-placed air duct1and the rear-placed air duct2are communicated. Therefore, the heat dissipating gas flow generated by the fan member17passes through the front-placed air duct1and subsequently passes through the rear-placed air duct2. A first heat dissipating element4and a second heat dissipating element5are provided inside the front-placed air duct1, the front-placed air duct1comprises a plurality of front-placed air sub-ducts3, and the first heat dissipating element4and the second heat dissipating element5are located in different front-placed air sub-ducts3. In comparison between the first heat dissipating element4and the second heat dissipating element5, the heat-dissipation amount of the first heat dissipating element4is greater than the heat-dissipation amount of the second heat dissipating element5. A blocking plate6is provided in the front-placed air sub-duct3where the second heat dissipating element5(the heat dissipating element having the lower demand on the heat-dissipation amount) is located, so as to reduce, by using the blocking plate6, the magnitude of the heat dissipating gas flow within a unit time of the front-placed air sub-duct3where it is located. In the same one front-placed air duct1, the reduction of the magnitude of the heat dissipating gas flow passing through the second heat dissipating element5results in the increasing of the heat dissipating gas flow passing through the first heat dissipating element4. Therefore, the provision of the blocking plate6, in fact, reduces part of the heat-dissipation capacity for the second heat dissipating element5, so as to relatively increase the heat-dissipation capacity for the first heat dissipating element4, which, while ensuring satisfaction of the heat-dissipation demand of the second heat dissipating element5, coordinately optimizes the heat-dissipation capacity of the entire heat dissipating device, whereby all of the component elements in the heat dissipating device may be within the design standards, to satisfy the demands of the users. In comparison between the first heat dissipating element4and the second heat dissipating element5, the first heat dissipating element4has a higher heat-dissipation demand, and the second heat dissipating element5has a lower heat-dissipation demand, whereby the overall heat-dissipation effect of the heat dissipating device may be optimized by compromising the heat-dissipation capacity for the second heat dissipating element5. In order to further increase the efficiency of blocking of the blocking plate6, the blocking plate6is provided with different specifications, wherein the blocking plates6of different specifications have unequal cross-sectional areas inside the corresponding front-placed air sub-ducts3, and the unequal cross-sectional areas have different effects of blocking of the heat dissipating gas flows. Further, the blocking plate6having a higher cross-sectional area, inside the same one front-placed air sub-duct3, has a higher resistance to the heat dissipating gas flow, and the blocking plate6having a lower cross-sectional area, inside the same one front-placed air sub-duct3, has a lower resistance to the heat dissipating gas flow. Therefore, the blocking plates6of unequal cross-sectional areas may be provided to regulate the flow resistances by the blocking plates6to the heat dissipating gas flows inside the front-placed air sub-ducts3where the blocking plates6are located. Because the provision of the blocking plate6, in fact, serves to block, by the blocking plate6, the heat dissipating gas flow of the front-placed air sub-duct3where the blocking plate6is located, i.e., while ensuring satisfaction of the heat-dissipation demand of the second heat dissipating element5, compromising part of the heat-dissipation capacity for the second heat dissipating element5, so as to relatively increase the heat-dissipation capacity for the first heat dissipating element4, the provision of the blocking plates6of different specifications may adjust the flow resistances by the blocking plates6to the heat dissipating gas flows inside the front-placed air sub-ducts3where the blocking plates6are located, so as to further increase the heat-dissipation capacity for the first heat dissipating element4. A third heat dissipating element7is provided inside the rear-placed air duct2. After the heat dissipating gas flow generated by the fan member17has passed through the front-placed air duct1, the temperature of the heat dissipating gas flow has been increased, and the heat dissipating gas flow entering the rear-placed air duct2has already had a certain temperature. Therefore, in the related art, the heat-dissipation capacity for the third heat dissipating element7by the heat dissipating gas flow passing through the rear-placed air duct2cannot satisfy the heat-dissipation demand of the third heat dissipating element7. Therefore, the flow guiding hood8is provided between the front-placed air duct1and the rear-placed air duct2, and the path of the heat dissipating gas flow of the front-placed air duct1and the rear-placed air duct2and the magnitude of the heat dissipating gas flow passing through that path are reasonably coordinately planned by using the flow guiding hood8, so as to increase the heat-dissipation capacity of the heat dissipating gas flow to the third heat dissipating element7located in the rear-placed air duct2, to satisfy the heat-dissipation demand of the third heat dissipating element7. Further, the path planning of the front-placed air duct1is realized by using a first air sub-duct18, a second air sub-duct19and a third air sub-duct20, wherein the front-placed air sub-ducts3that are closest to the third heat dissipating element7are the first air sub-duct18, the second air sub-duct19and the third air sub-duct20, and the path planning of the rear-placed air duct2is realized by using the flow guiding hood8. The flow guiding hood8is provided between the front-placed air duct1and the rear-placed air duct2, i.e., between the first air sub-duct18, the second air sub-duct19and the third air sub-duct20on one hand and the third heat dissipating element7on the other hand. The heat dissipating gas flow generated by the fan member17is diverted by the first air sub-duct18, the second air sub-duct19and the third air sub-duct20of the front-placed air duct1, and passes through the front-placed air duct1. In other words, the heat dissipating gas flow that has passed through the first air sub-duct18, the second air sub-duct19and the third air sub-duct20passes through the flow guiding hood8to be diverted and converged, and subsequently flows into the rear-placed air duct2. Further, as shown by the schematic diagram of the flowing directions of the heat dissipating gas flows inFIG.3, part of the heat dissipating gas flow generated by the fan member17flows through the first air sub-duct18closest to the housing9of the server, part of the heat dissipating gas flow generated by the fan member17flows through the second air sub-duct19where the memory bar is located, and part of the heat dissipating gas flow generated by the fan member17flows through the third air sub-duct20where the central processing unit is located. The heat dissipating gas flow of the first air sub-duct18has the lowest temperature, the heat dissipating gas flow of the second air sub-duct19has a certain temperature rise, and the heat dissipating gas flow of the third air sub-duct20has a higher temperature rise. Therefore, the flow guiding hood8converges the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19, so as to reduce the temperature of the heat dissipating gas flow of the second air sub-duct19by mixing the heat dissipating gas flow of the first air sub-duct18and the heat dissipating gas flow of the second air sub-duct19. Furthermore, the flow guiding hood8diverts the converged flow of the first air sub-duct18and the second air sub-duct19from the heat dissipating gas flow of the third air sub-duct20, so that the major part of the heat dissipating gas flow having a higher temperature rise flows toward the region of fourth heat dissipating elements16within a second mainboard region13(merely a small part of the heat dissipating gas flow having a higher temperature rise, via the gap between the flow guiding hood8and the housing, flows toward the third heat dissipating element, i.e., a power-supply module), rather than directly flowing toward the heat dissipating region of the power-supply module. Therefore, the path planning to the rear-placed air duct2by the flow guiding hood8is essentially compromising of part of the heat-dissipation capacity for the fourth heat dissipating elements16, so as to increase the heat-dissipation capacity for the third heat dissipating element7. By the path planning, the temperature of a first power-supply module35(closer to the housing9of the server) is increased, but still may be controlled within the standard, and a second power-supply module36(closer to the central processing unit), which has always exceeded the standard, may be controlled within the standard. The rear-placed air duct2after the path planning effectively solves the heat-dissipation capacity for the third heat dissipating element7(the power-supply module). The experimentation data are as follows. The third heat dissipating element7is the power-supply module, and the power-supply module comprises the first power-supply module35and the second power-supply module36. Before the path planning, the temperature of the first power-supply module35is 39° C., and the temperature of the second power-supply module36is 58° C. After the path planning according to the present application has been employed, the temperature of the first power-supply module35is 42° C., and the temperature of the second power-supply module36is 51° C. (the standard is 55° C.). Therefore, the rear-placed air duct2after the path planning effectively solves the heat-dissipation capacity for the power-supply module. Accordingly, it can be seen that the provision of the blocking plate6in the front-placed air duct1, the path planning of the front-placed air duct1, and the path planning of the rear-placed air duct2by the flow guiding hood8serve to coordinately optimize the heat dissipation by the heat dissipating device overall, so that all of the component elements of a mainboard11may satisfy the standard requirements.

In the present application, the path of the front-placed air duct1and the rear-placed air duct2and the magnitude of the gas flow flowing through the front-placed air duct1and the rear-placed air duct2are coordinately planned. Firstly, the blocking plate6is provided in the front-placed air sub-duct3corresponding to the second heat dissipating element5, so as to relatively increase the heat-dissipation capacity for the first heat dissipating element4by compromising the heat-dissipation capacity for the second heat dissipating element5, which coordinately optimizes the heat-dissipation capacity of the front-placed air duct1. The flow guiding hood8is provided between the front-placed air duct1and the rear-placed air duct2, and the flow guiding hood8effectively converges and diverts the heat dissipating gas flow entering the rear-placed air duct2from the front-placed air duct1, which coordinately optimizes the heat-dissipation capacity of the rear-placed air duct2. The coordinated planning of the path of the front-placed air duct1and the rear-placed air duct2and the magnitude of the gas flow flowing through the front-placed air duct1and the rear-placed air duct2reduces the temperature of the third heat dissipating element7overall, and effectively increases the overall coordinated heat-dissipation capacity of the heat dissipating device.

In an embodiment of the present application, the heat dissipating device further comprises a housing9, a wind directing hood10, a mainboard11and the flow guiding hood8are provided inside the housing9, the mainboard11comprises a first mainboard region12and a second mainboard region13, the front-placed air duct1is formed between the first mainboard region12on one hand and the wind directing hood10and the housing9on the other hand, the rear-placed air duct2is formed between the second mainboard region13on one hand and the flow guiding hood8and the housing9on the other hand, the rear-placed air duct2and the front-placed air duct1are communicated, the plurality of first heat dissipating elements4and second heat dissipating elements5are provided within the first mainboard region12, and the third heat dissipating element7is provided within the second mainboard region13.

The heat dissipating device further comprises the housing9(the heat dissipating device is separately provided with the housing9, or the housing9of the server serves as the housing9of the heat dissipating device). The housing9serves to protect the internal component elements. A wind directing hood10, the flow guiding hood8and the mainboard11are provided inside the housing9. The mainboard11of the heat dissipating device generally has two parts, i.e., a first mainboard region12and a second mainboard region13. The front-placed air duct1is formed between the first mainboard region12on one hand and the wind directing hood10and the housing9on the other hand, and the heat dissipating gas flow generated by the fan member17firstly passes through the front-placed air duct1. The rear-placed air duct2is formed between the second mainboard region13on one hand and the flow guiding hood8and the housing9on the other hand, and the front-placed air duct1and the rear-placed air duct2are communicated. Therefore, the heat dissipating gas flow generated by the fan member17passes through the front-placed air duct1and subsequently passes through the rear-placed air duct2. A plurality of first heat dissipating elements4and second heat dissipating elements5are provided within the first mainboard region12, and the third heat dissipating element7is provided within the second mainboard region13. In other words, the first heat dissipating elements4and the second heat dissipating elements5are located in the front-placed air duct1corresponding to the first mainboard region12, and the third heat dissipating element7is located in the front-placed air duct1corresponding to the second mainboard region13.

In an embodiment of the present application, the wind directing hood10comprises a top plate14, a plurality of partition plates15are provided on the top plate14, the front-placed air sub-ducts3are formed between two neighboring partition plates15, and the blocking plates6are detachably mounted inside the front-placed air sub-ducts3.

As shown inFIGS.4and5, the wind directing hood10comprises a top plate14and side plates34. When the wind directing hood10is mounted to the heat dissipating device, the top plate14and the side plates34of the wind directing hood10and the first mainboard region12of the mainboard11form the front-placed air duct1therebetween. A plurality of partition plates15are provided between the two side plates34of the wind directing hood10, two neighboring partition plates15, the top plate14and the first mainboard region12of the mainboard11form the front-placed air sub-ducts3therebetween. Different heat dissipating elements are provided correspondingly inside the front-placed air sub-ducts3. Further, the first heat dissipating element4and the second heat dissipating element5are located in different front-placed air sub-ducts3. In comparison between the first heat dissipating element4and the second heat dissipating element5, the heat-dissipation amount of the first heat dissipating element4is greater than the heat-dissipation amount of the second heat dissipating element5. The blocking plate6is provided in the front-placed air sub-duct3where the second heat dissipating element5is located (as shown in the drawings, the front-placed air sub-duct3where the blocking plate6is provided is the front-placed air sub-duct3where the second heat dissipating element5is located), so as to reduce, by using the blocking plate6, the magnitude of the heat dissipating gas flow within a unit time of the front-placed air sub-duct3where it is located, in the same one wind directing hood10, the reduction of the magnitude of the heat dissipating gas flow passing through the second heat dissipating element5results in the increasing of the heat dissipating gas flow passing through the first heat dissipating element4. Therefore, the provision of the blocking plate6, in fact, reduces part of the heat-dissipation capacity for the second heat dissipating element5, so as to relatively increase the heat-dissipation capacity for the first heat dissipating element4, which, while ensuring satisfaction of the heat-dissipation demand of the second heat dissipating element5, coordinately optimizes the heat-dissipation capacity of the entire heat dissipating device, whereby all of the component elements in the heat dissipating device may be within the design standards, to satisfy the demands of the users. In an embodiment of the present application, the blocking plate6is provided on the side of the front-placed air sub-duct3that is closer to the fan member17, wherein that side is the air inlet where the heat dissipating gas flow generated by the fan member17enters the front-placed air duct1, and the other side is the air outlet after the heat dissipating gas flow flows through the front-placed air sub-duct3. The heat dissipating gas flow flowing out of the air outlet passes through the flow guiding hood8and enters the rear-placed air duct2.

In an embodiment of the present application, the blocking plate6is connected to the top plate14, and/or the blocking plate6is connected to the partition plates15on the two sides of the front-placed air sub-duct3corresponding thereto.

In comparison between the first heat dissipating element4and the second heat dissipating element5, the first heat dissipating element4has a higher heat-dissipation demand, and the second heat dissipating element5has a lower heat-dissipation demand. Therefore, the heat-dissipation capacity for the first heat dissipating element4may be increased by compromising the heat-dissipation capacity for the second heat dissipating element5. Therefore, the blocking plate6is provided in the front-placed air sub-duct3where the corresponding second heat dissipating element5is located, for example, the blocking plate6shown inFIGS.4and5. The blocking plate6has three types of the mode of connection in the front-placed air sub-duct3where it is located, wherein the first type is that the blocking plate6is connected to the top plate14, the second type is that the blocking plate6is connected to the partition plate15, and the third type is that the blocking plate6is connected to both of the partition plate15and the side plate34. In order to facilitate to replace the blocking plates6of different specifications, the blocking plate6is detachably connected to the partition plate15and the side plate34. Further, the blocking plate6is connected to the partition plate15and the side plate34by interference fitting. Sliding grooves are provided on the top plate14, the partition plate15and the side plate34, the edges of the blocking plate6are inserted into the sliding grooves, and the edges of the blocking plate6and the sliding grooves are interference-fitted, to prevent the blocking plate6from moving in the sliding grooves due to the blowing by the heat dissipating gas flow. The interference-fitting amount between the blocking plate6and the sliding grooves allows the user to mount the blocking plate6into the sliding grooves, and allows the user to move the blocking plate6out of the sliding grooves. In an embodiment of the present application, as shown in the figures, sliding grooves are provided between two neighboring partition plates15, the sliding grooves are in the downward direction perpendicular to the direction of the heat dissipating gas flow (in the vertical downward direction), the two ends of the blocking plate6are inserted into the sliding grooves, and blocking plates are provided at the bottoms of the sliding grooves to limit the blocking plate6.

In an embodiment of the present application, a plurality of fourth heat dissipating elements16are provided within the second mainboard region13, the fourth heat dissipating elements16are located in the rear-placed air duct2, and the fourth heat dissipating elements16correspond to at least one of the front-placed air sub-ducts3.

The first heat dissipating element4and the second heat dissipating element5are provided within the first mainboard region12. Within the second mainboard region13not only the third heat dissipating element7is provided, but also the fourth heat dissipating elements16are provided. The rear-placed air duct2is formed between the second mainboard region13on one hand and the flow guiding hood8and the housing9on the other hand, and therefore the fourth heat dissipating elements16are provided in the rear-placed air duct2. Furthermore, the fourth heat dissipating elements16correspond to at least one of the front-placed air sub-ducts3, so that the heat dissipating gas flow of the front-placed air duct1flows into the rear-placed air duct2to perform heat dissipation to the fourth heat dissipating elements located in the rear-placed air duct2.

In an embodiment of the present application, the specification of the blocking plate6is decided according to the heat-dissipation demand of the fourth heat dissipating elements16.

In order to further increase the efficiency of blocking of the blocking plate6, the blocking plate6is provided with different specifications, wherein the blocking plates6of different specifications have unequal cross-sectional areas inside the corresponding front-placed air sub-ducts3, and the unequal cross-sectional areas have different effects of blocking of the heat dissipating gas flows. Further, the blocking plate6having a higher cross-sectional area, inside the same one front-placed air sub-duct3, has a higher resistance to the heat dissipating gas flow, and the blocking plate6having a lower cross-sectional area, inside the same one front-placed air sub-duct3, has a lower resistance to the heat dissipating gas flow. Therefore, the blocking plates6of unequal cross-sectional areas may be provided to regulate the flow resistances by the blocking plates6to the heat dissipating gas flows inside the front-placed air sub-ducts3where the blocking plates6are located. In the heat dissipating device shown inFIG.2, the left side is the first mainboard region12, and the right side is the second mainboard region13. The first heat dissipating element4and the second heat dissipating element5are provided within the first mainboard region12. The first heat dissipating element4and the second heat dissipating element5are separate. The third heat dissipating element7and the fourth heat dissipating elements16are provided within the second mainboard region13, the third heat dissipating element7is located at the upper part of the second mainboard region13, and the third heat dissipating element7is located at the lower part of the second mainboard region13. The fan member17is on the left of the first mainboard region12, the heat dissipating gas flow generated by the fan member17passes through the front-placed air duct1to perform heat dissipation to the first heat dissipating element4and the second heat dissipating element5within the first mainboard region12, and the heat dissipating gas flow flowing out of the front-placed air duct1enters the rear-placed air duct2to perform heat dissipation to the third heat dissipating element7and the fourth heat dissipating elements16in the rear-placed air duct2. When the corresponding blocking plate6is provided in the front-placed air duct1, because the blocking plate6blocks the heat dissipating gas flow inside the front-placed air sub-duct3where it is located, it influences the effect of heat dissipation of the fourth heat dissipating elements16located downstream of the front-placed air sub-duct3where the blocking plate6is located. Therefore, the size of the blocking plate6is required to be decided according to the heat-dissipation demand of the fourth heat dissipating elements16. If the fourth heat dissipating elements16do not have a high heat-dissipation demand, then the blocking plate6of a larger cross-sectional area may be selected. If the fourth heat dissipating elements16have a relatively high heat-dissipation demand, then the blocking plate6of a smaller cross-sectional area may be selected. It is required to decide the size of the blocking plate6according to the experimentation data and empirical values. It is required to quantize the heat-dissipation demand of the fourth heat dissipating elements16according to a certain standard, and properly set the correspondence relation between the heat-dissipation demands and the cross-sectional areas of the blocking plate6, so as to reasonably select the magnitude of the cross-sectional area of the blocking plate6according to the heat-dissipation demand of the fourth heat dissipating elements16.

In an embodiment of the present application, the installation position of the blocking plate6is decided according to the positions of the fourth heat dissipating elements16in the rear-placed air duct2.

After the magnitude of the cross-sectional area of the blocking plate6has been reasonably selected according to the heat-dissipation demand of the fourth heat dissipating elements16, it is required to determine the installation position of the blocking plate6. A plurality of front-placed air sub-ducts3might exist that correspond to the fourth heat dissipating elements16, and it is required to select the front-placed air sub-duct3that is closest to the fourth heat dissipating elements16to mount the blocking plate6. As a result, even though the blocking plate6, after mounted, compromises the heat-dissipation capacity for the second heat dissipating element5, its remaining heat-dissipation capacity may still satisfy the heat-dissipation demand of the fourth heat dissipating elements16located in the rear-placed air duct2downstream of the front-placed air duct1. Therefore, the fourth heat dissipating elements16are the component elements that do not have a high requirement on heat dissipation within the second mainboard region13.

In an embodiment of the present application, the first heat dissipating elements4are central processing units, the second heat dissipating elements5are memory bars, and the blocking plate6is provided inside the front-placed air sub-duct3corresponding to at least one of the memory bars.

The first heat dissipating elements4are central processing units, the second heat dissipating elements5are memory bars, and the blocking plate6is provided inside the front-placed air sub-duct3corresponding to at least one of the memory bars. The heat-dissipation amount of the central processing unit is greater than the heat-dissipation amount of the memory bar. The blocking plate6is provided in the front-placed air sub-duct3where the memory bar is located, so as to reduce, by using the blocking plate6, the magnitude of the heat dissipating gas flow within a unit time of the front-placed air sub-duct3where it is located, in the same one wind directing hood10, the reduction of the magnitude of the heat dissipating gas flow passing through the memory bar results in the increasing of the heat dissipating gas flow passing through the central processing unit. Therefore, the provision of the blocking plate6, in fact, reduces part of the heat-dissipation capacity for the memory bar, so as to relatively increase the heat-dissipation capacity for the central processing unit, which, while ensuring satisfaction of the heat-dissipation demand of the memory bar, coordinately optimizes the heat-dissipation capacity of the entire heat dissipating device, whereby all of the component elements in the heat dissipating device may be within the design standards, to satisfy the demands of the users.

In an embodiment of the present application, the third heat dissipating element7is a power-supply module, and the fourth heat dissipating elements16are a south-bridge chip and an M.2 interface device.

The third heat dissipating element7is provided within the second mainboard region13. The third heat dissipating element7is the power-supply module, and the power-supply module is located in the rear-placed air duct2. After the heat dissipating gas flow generated by the fan member17has passed through the front-placed air duct1, the temperature of the heat dissipating gas flow has been increased, and the heat dissipating gas flow entering the rear-placed air duct2has already had a certain temperature. Therefore, in the related art, the heat-dissipation capacity for the power-supply module by the heat dissipating gas flow passing through the rear-placed air duct2cannot satisfy the heat-dissipation demand of the power-supply module. Therefore, the flow guiding hood8is provided between the front-placed air duct1and the rear-placed air duct2, and the path of the heat dissipating gas flow of the front-placed air duct1and the rear-placed air duct2and the magnitude of the heat dissipating gas flow passing through that path are reasonably coordinately planned by using the flow guiding hood8, so as to increase the heat-dissipation capacity of the heat dissipating gas flow for the power-supply module located in the rear-placed air duct2, to satisfy the heat-dissipation demand of the power-supply module. Both of the specification and the installation position of the blocking plate6are required to be determined according to the fourth heat dissipating elements16. The fourth heat dissipating elements16are the component elements that do not have a high requirement on heat dissipation within the second mainboard region13, for example, the south-bridge chip and an M.2 interface device.

In an embodiment of the present application, the heat dissipating device further comprises the fan member17, the heat dissipating gas flow generated by the fan member17flows into the front-placed air duct1, and the first air sub-duct18, the second air sub-duct19and the third air sub-duct20in the front-placed air duct1correspond to the power-supply module.

In order to be capable of coordinately optimizing the heat dissipation by the heat dissipating device, to ensure that, when the internal component elements of the heat dissipating device are normally operating, the temperatures of all of them may be within the standards, it is required to further plan the paths of the heat dissipating gas flows of the front-placed air duct1and the rear-placed air duct2. Regarding the path planning of the front-placed air duct1, the front-placed air sub-ducts3that are closest to the third heat dissipating element7are the first air sub-duct18, the second air sub-duct19and the third air sub-duct20, and the path planning to the three air sub-ducts improves the capacity of the coordinated controlling over the heat dissipation by the heat dissipating device. In the heat-dissipation controlling over power-supply modules in the related art, the wind of the front-placed air duct1(the heat dissipating gas flow passing through the memory bar and/or the central processing unit) directly enters the two power-supply modules in the rear-placed air duct2, and there is always one power-supply module whose temperature value cannot be controlled within the standard (for example, the power-supply module that is closer to the central processing unit inFIG.2). That is because the heat dissipating gas flow that has passed through the central processing unit has a high temperature rise, and the heat dissipating gas flow that has passed through the central processing unit cannot satisfy the heat-dissipation demand of the power-supply module downstream thereof. The power-supply module comprises the first power-supply module35and the second power-supply module36, as shown inFIG.3. By the reasonable planning to the first air sub-duct18, the second air sub-duct19and the third air sub-duct20, finally the temperature of the heat dissipating gas flow that passes through the front-placed air duct1(the first air sub-duct18, the second air sub-duct19and the third air sub-duct20) and enters the rear-placed air duct2(goes to the power-supply module) is reduced. The first air sub-duct18, the second air sub-duct19and the third air sub-duct20correspond to the power-supply module, whereby it may be ensured that, when the first power-supply module35and the second power-supply module36are normally operating, their temperatures are within the standard.

In an embodiment of the present application, the flow guiding plate21and the flow directing plate22are hinged.

The flow guiding hood8comprises the flow guiding plate21and the flow directing plate22, as shown inFIGS.7and8. The flow guiding plate21serves to guide the heat dissipating gas flows of the first air sub-duct18, the second air sub-duct19and the third air sub-duct20. The flow directing plate22serves to direct the heat dissipating gas flow that has been guided by the flow guiding plate21. In order to facilitate to adjust the capacity of flow guiding of the flow guiding plate21, the flow guiding plate21and the flow directing plate22are configured as hinged (not shown inFIGS.7and8), wherein the flow directing plate22is fixed, and the flow guiding plate21may perform rotary movement with respect to the flow directing plate22, whereby the capacity of flow guiding of the flow guiding plate21may be regulated by adjusting the rotation angle of the flow guiding plate21relative to the flow directing plate22. Further, the main function of the flow guiding plate21is to converge the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19, and divert in proportion the heat dissipating gas flow obtained by the convergence of the first air sub-duct18and the second air sub-duct19and the heat dissipating gas flow of the third air sub-duct20, as shown by the schematic diagram of the flowing paths of the heat dissipating gas flows in front of and behind the flow guiding hood8inFIG.3. If the flow guiding plate21is rotated in the direction toward the CPU, then it allows part of the high-temperature gas flows that have passed through the CPU to be converged by the first air sub-duct18and the second air sub-duct19and flow toward the third heat dissipating element7together, which reduces the temperature of the heat dissipating gas flow flowing toward the fourth heat dissipating elements16, and increases the temperature of the heat dissipating gas flow flowing toward the third heat dissipating element7. If the flow guiding plate21is rotated in the direction away from the CPU, then nearly all of the high-temperature gas flows that have passed through the CPU pass through the third air sub-duct20and flow toward the fourth heat dissipating elements16, which reduces the temperature of the heat dissipating gas flow flowing toward the third heat dissipating element7, and increases the temperature of the heat dissipating gas flow flowing toward the fourth heat dissipating elements16. The flowing paths of the heat dissipating gas flows may be regulated by using the flow guiding plate21, to increase the coordinated heat-dissipation capacity of the heat dissipating device.

In an embodiment of the present application, a center line is formed between the second air sub-duct19and the third air sub-duct20, and the flow guiding plate21is located in the center line.

The memory bar is provided correspondingly inside the second air sub-duct19, and what is provided correspondingly inside the first air sub-duct18is a heat dissipating element whose heat-dissipation amount is much less than the heat-dissipation amount of the memory bar. Therefore, after the heat dissipating gas flow inside the second air sub-duct19has flowed through the memory bar, as compared with the heat dissipating gas flow flowing through the heat dissipating element inside the first air sub-duct18, the temperature of the heat dissipating gas flow flowing out of the second air sub-duct19is greater than the temperature of the heat dissipating gas flow flowing out of the first air sub-duct18. Therefore, the first heat dissipating gas flow reduces the temperature of the second heat dissipating gas flow. However, what is provided correspondingly inside the third air sub-duct20is the CPU, and the heat-dissipation amount of the CPU is much greater than the heat-dissipation amount of the memory bar.

Therefore, the temperature of the heat dissipating gas flow flowing out of the third air sub-duct20is much greater than the temperatures of the heat dissipating gas flows flowing out of the first air sub-duct18and the second air sub-duct19, and it is required to isolate the converged flow of the first air sub-duct18and the second air sub-duct19from the heat dissipating gas flow of the third air sub-duct20, which is realized by using the flow guiding plate21of the wind directing hood10. When the rotation angle of the flow guiding plate21is adjusted according to the practical situation of the heat dissipation, a preferable rotation position of the flow guiding plate21is where the end of the flow guiding plate21that is closer to the memory bar and the CPU is located in the center line formed between the second air sub-duct19and the third air sub-duct20, which may effectively isolate the converged flow of the first air sub-duct18and the second air sub-duct19from the heat dissipating gas flow of the third air sub-duct20, thereby effectively reducing the temperature of the heat dissipating gas flow flowing toward the third heat dissipating element7(the power-supply module).

In an embodiment of the present application, the flow directing partition plate23and the flow directing through plate24are located on the two sides of the flow guiding plate21, the flow directing partition plate23is located on the side corresponding to the third air sub-duct20, and the flow directing through plate24is located on the side corresponding to the first air sub-duct18and the second air sub-duct19.

The flow directing plate22comprises the flow directing partition plate23and the flow directing through plate24, as shown inFIG.7. The flow directing partition plate23serves to block the heat dissipating gas flows. The flow directing through plate24serves to permit the heat dissipating gas flows to pass through, and, after the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19have passed through the flow directing through plate24, the heat dissipating gas flow of the first air sub-duct18and the heat dissipating gas flow of the second air sub-duct19are effectively converged. Because a preferable position of the flow guiding plate21is where the end of the flow guiding plate21that is closer to the memory bar and the CPU is located in the center line formed between the second air sub-duct19and the third air sub-duct20, the flow directing partition plate23and the flow directing through plate24are located on the two sides of the flow guiding plate21, the flow directing through plate24corresponds to the positions of the first air sub-duct18and the second air sub-duct19, and the flow directing partition plate23corresponds to the position of the third air sub-duct20, which may effectively isolate the converged flow of the first air sub-duct18and the second air sub-duct19from the heat dissipating gas flow of the third air sub-duct20, thereby effectively reducing the temperature of the heat dissipating gas flow flowing toward the third heat dissipating element7(the power-supply module).

In an embodiment of the present application, a first guide plate25is provided on the side of the flow directing through plate24that is opposite to the flow guiding plate21, and a first flow directing groove26for changing the direction of the heat dissipating gas flow is formed between the first guide plate25and the flow directing through plate24.

In order to improve the effect of the convergence of the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19, the first guide plate25is provided on the side of the flow directing through plate24that is opposite to the flow guiding plate21, and the first flow directing groove26for changing the direction of the heat dissipating gas flow is formed between the first guide plate25and the flow directing through plate24. The first flow directing groove26changes the direction of the converged flow of the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19, which effectively mixes the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19, so as to cool the heat dissipating gas flow of the second air sub-duct19by using the heat dissipating gas flow of the first air sub-duct18.

In an embodiment of the present application, a second guide plate27is provided on the side of the flow directing partition plate23that is opposite to the flow guiding plate21, and a second flow directing groove28for changing the direction of the heat dissipating gas flow is formed between the second guide plate27and the flow directing partition plate23.

The second guide plate27is provided on the side of the flow directing partition plate23that is opposite to the flow guiding plate21, the second flow directing groove28is formed between the second guide plate27and the flow directing partition plate23, and the second flow directing groove28is used for changing the direction of the heat dissipating gas flow.

In an embodiment of the present application, the second flow directing groove28and the first flow directing groove26are communicated.

The second flow directing groove28and the first flow directing groove26are communicated, and therefore the heat dissipating gas flow that has flowed through the first flow directing groove26flows toward the second flow directing groove28, as shown inFIGS.7and8(FIGS.7and8do not identify the housing9, and the housing9and the flow guiding hood8form the flowing channel of the heat dissipating gas flow). After the first flow directing groove26has changed the direction of the converged flow of the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19, the second flow directing groove28changes the direction of the converged flow again, so that the heat dissipating gas flow that has flowed through the second flow directing groove28flows toward the third heat dissipating element7(the power-supply module), whereby the converged flow of the heat dissipating gas flows of the first air sub-duct18and the second air sub-duct19effectively performs the heat dissipation to the third heat dissipating element7.

In an embodiment of the present application, cable raceways29are provided at the top and the bottom of the flow guiding plate21.

In the related art, wiring is required between the front-placed air duct1and the rear-placed air duct2. However, the harness provided between the front-placed air duct1and the rear-placed air duct2hinders the heat dissipating gas flow flowing from the front-placed air duct1toward the rear-placed air duct2, which affects the effect of heat dissipation of the third heat dissipating element7by the heat dissipating gas flow in the rear-placed air duct2. Therefore, in the present application, the flow guiding hood8is provided between the front-placed air duct1and the rear-placed air duct2, which cannot only converge and divert the heat dissipating gas flows, but also can be used for the wiring of the harness, whereby the harness is wired via the cable raceways29at the top and the bottom of the flow guiding hood8, to reduce the blocking to the heat dissipating gas flows by the harness, and increase the effect of heat dissipation to the third heat dissipating element7.

In an embodiment of the present application, foamed plastics30are provided at the cable raceways29, and threading grooves31are provided on the foamed plastics30.

Foamed plastics30are provided at the cable raceways29, and the threading grooves31are provided on the foamed plastics30. The harness is provided in the threading grooves31on the foamed plastics30. The foamed plastics30serve to prevent air leakage, i.e., preventing losing of the heat dissipating gas flows.

In an embodiment of the present application, foamed plastics30are provided between the two sides of the wind directing hood10and the housing9, each of the foamed plastics30is provided with a threading hole32and an avoiding hole33, and the gaps of some of the threading holes32and the avoiding holes33form the first air sub-duct18.

Foamed plastics30are provided between the two sides of the wind directing hood10and the housing9, each of the foamed plastics30is provided with a threading hole32and an avoiding hole33, and the gaps of some of the threading holes32and the avoiding holes33form the first air sub-duct18. Here, the threading holes32in the foamed plastics30are used for threading. The avoiding holes33are used for avoiding the component elements under the foamed plastics30. When the harness passes through the threading holes32gaps are left, and therefore gaps are left between the avoiding holes33and the component elements. The heat dissipating gas flow generated by the fan member17passes through two gaps to form the first air sub-duct18, so as to converge the heat dissipating gas flow that has passed through the first air sub-duct18and the heat dissipating gas flow that has passed through the second air sub-duct19, to further reduce the temperature of the heat dissipating gas flow of the second air sub-duct19. The foamed plastic30located on the side of the first air sub-duct18may be separable, and the threading holes32are provided on the side closer to the housing9, which facilitates the wiring and may prevent the foamed plastic30from pressing the wires. The foamed plastic30on the other side of the wind directing hood10may also be separable, which, while facilitating the wiring, may prevent air leakage of the heat dissipating gas flow at that position, i.e., preventing losing of the heat dissipating gas flows.

The Second Embodiment

Referring toFIG.9,FIG.9is a schematic structural diagram of a server according to some embodiments of the present application. The contents of the server shown inFIG.9that are the same as or similar to those in the schematic structural diagrams shown inFIGS.1-8may refer to the structures inFIGS.1-8, and are not discussed further herein.

The server comprises the heat dissipating device stated above, which may coordinately plan the path of the front-placed air duct1and the rear-placed air duct2and the magnitude of the gas flow flowing through the front-placed air duct1and the rear-placed air duct2. Firstly, the blocking plate6is provided in the front-placed air sub-duct3corresponding to the second heat dissipating element5, so as to relatively increase the heat-dissipation capacity for the first heat dissipating element4by compromising the heat-dissipation capacity for the second heat dissipating element5, which coordinately optimizes the heat-dissipation capacity of the front-placed air duct1. The flow guiding hood8is provided between the front-placed air duct1and the rear-placed air duct2, and the flow guiding hood8effectively converges and diverts the heat dissipating gas flow entering the rear-placed air duct2from the front-placed air duct1, which coordinately optimizes the heat-dissipation capacity of the rear-placed air duct2. The coordinated planning of the path of the front-placed air duct1and the rear-placed air duct2and the magnitude of the gas flow flowing through the front-placed air duct1and the rear-placed air duct2reduces the temperature of the third heat dissipating element7overall, and effectively increases the overall coordinated heat-dissipation capacity for the server.

The technical features of the above embodiments may be combined randomly. In order to simplify the description, all of the feasible combinations of the technical features of the above embodiments are not described. However, as long as the combinations of those technical features are not contradictory, they should be considered as falling within the scope of the description.

The above embodiments merely describe some embodiments of the present application, and although they are described particularly and in detail, they cannot be accordingly understood as limiting the patent scope of the present disclosure. It should be noted that a person skilled in the art may make variations and improvements without departing from the concept of the present application, all of which fall within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.