Patent Application
20190107122
The present invention relates generally to a slim pump structure, and more particularly to a slim pump structure having a minified volume and greatly enhanced heat dissipation efficiency.
It is known that the electronic apparatuses have higher and higher operation performance. As a result, in operation, the electronic components arranged in the electronic apparatuses will generate high heat. In general, a heat sink or a radiating fin assembly is disposed on the electronic components to enlarge the heat dissipation area and enhance the heat dissipation performance. However, the heat dissipation effect achieved by the heat sink or a radiating fin assembly is limited. Therefore, a conventional water-cooling device is often employed to enhance the heat dissipation effect.
The conventional water-cooling device contains a cooling liquid therein. The heat generated by a heat generation component (such as a processor or a graphics processing unit) is absorbed and heat-exchanged with the cooling liquid. A pump is disposed in the water-cooling device to circulate the cooling liquid. The water-cooling device is connected to a heat sink via multiple pipe bodies, whereby heat-exchange can take place between the heat sink and the water-cooling device via the circulated cooling liquid to quickly dissipate the heat of the heat generation components.
In the above conventional water-cooling device, the stator assembly is disposed outside the water-cooling device so as to prevent the stator assembly of the pump from being damaged due to contact with the cooling liquid. The rotor assembly for guiding the cooling liquid to circulate within the water-cooling device is disposed in the chamber of the water-cooling device. The magnetic member of the rotor assembly interacts with the corresponding silicon steel sheets of the stator assembly and is magnetized to operate via the case of the water-cooling device. Therefore, the case of the conventional water-cooling device must have a considerable thickness for having sufficient structural strength. Such structure will lead to a successively large volume of the water-cooling device. In addition, the thickness of the case of the water-cooling module will space the rotor assembly from the stator assembly to affect the operation efficiency of the pump. This will deteriorate the heat dissipation performance of the water-cooling module as a whole.
It is therefore tried by the applicant to provide a slim pump structure to eliminate the shortcomings existing in the conventional water-cooling device.
It is therefore a primary object of the present invention to provide a slim pump structure, which has a slim structure.
It is a further object of the present invention to provide the above slim pump structure, the volume of which is greatly minified.
It is still a further object of the present invention to provide the above slim pump structure, which has greatly enhanced heat dissipation efficiency.
To achieve the above and other objects, the slim pump structure of the present invention includes a case, a rotor assembly, a flow guide plate, a stator assembly and an enclosure member. The case has a first side and a second side. The first side is formed with a pump chamber. A partitioning section partitions the pump chamber into a first chamber and a second chamber. A pivotal section upward extends from the second chamber. A center of the pivotal section is formed with a bearing hole. The second side is recessed to form a cavity corresponding to the pivotal section. Multiple axial ribs are formed on a circumference of the cavity at intervals. Each two adjacent ribs define a gap therebetween. The rotor assembly is received in the second chamber. The rotor assembly has a hub and a blade wheel. A rotary shaft downward extends from the hub. The rotary shaft is inserted in the bearing hole. A flow way is annularly formed on one side of the blade when in communication with the first and second chambers. The flow guide plate is disposed on an outer circumference of the rotor assembly to cover the second chamber so as to uncommunicate the second chamber from the first chamber. The stator assembly is received in the cavity. The stator assembly has multiple poles respectively correspondingly received in the gaps. The enclosure member is correspondingly disposed on the case to cover the case. The enclosure member and the flow guide plate define therebetween a communication chamber in communication with the first chamber and the flow way.
According to the above structural design of the present invention, when the slim pump structure operates, the working fluid first flows from the water inlet into the first chamber. Then, the working fluid will flow through the communication chamber between the flow guide plate and the enclosure member into the flow way of the rotor assembly. Then, the rotor assembly will rotate to throw out the working fluid to the second chamber. Finally, the working fluid will flow out from the water outlet to complete an internal circulation. The inner wall of the bearing hole is formed with multiple channels. Therefore, when the working fluid flows into the bearing hole, the channels will employ the working fluid as a medium to form a hydrodynamic bearing structure. Accordingly, the pump structure can be slimmed. In addition, the multiple axial ribs are formed on the circumference of the cavity at intervals and each two adjacent ribs define a gap therebetween to form a reinforcement structure. Under such circumstance, the thickness of the inner wall of the cavity can be extremely thinned. In this case, the poles of the stator assembly and the magnetic member disposed on the inner circumference of the rotor assembly can get closer to each other. This greatly enhances the interaction and magnetization between the poles and the magnetic member. Therefore, the operation efficiency of the rotor assembly is enhanced so that the heat dissipation efficiency can be increased as a whole.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein:
Please refer to
In this embodiment, the partitioning section 201, the tongue section 208, the pivotal section 203 and the fitting section 2053 are, but not limited to, integrally formed with the case 20. In other words, the case 20, the partitioning section 201, the tongue section 208, the pivotal section 203 and the fitting section 2053 can be alternatively separately manufactured according to a user's requirement and then assembled with each other. This can achieve the same effect.
The pivotal section 203 upward extends from the second chamber 2022. The center of the pivotal section 203 is formed with a bearing hole 2031. The inner wall of the bearing hole 2031 is formed with multiple axial channels 2032 in communication with the second chamber 2022. A bearing 26 is disposed in the bearing hole 2031. The second side 20b is recessed to form a cavity 205 corresponding to the pivotal section 203 of the first side 20a. The fitting section 2053 protrudes from the center of the cavity 205 corresponding to the bearing hole 2031 of the first side 20a. Multiple axial ribs 2051 are formed on a circumference of the cavity 205 at intervals. Each two adjacent ribs 2051 define a gap 2052 therebetween (as shown in
In addition, the first side 20a of the case 20 is further formed with a locating groove 204 along the outer circumference of the pump chamber 202. A leakproof member 29 is correspondingly disposed in the locating groove 204 to prevent the working fluid 3 from leaking outside in operation of the slim pump structure 2.
A water inlet 243 and a water outlet 244 are disposed on one side of the case 20. In this embodiment, the water inlet 243 and the water outlet 244 are, but not limited to, disposed on the same side of the case 20. In practice, the water inlet 243 and the water outlet 244 can be disposed in different positions according to the user's requirement. This will not affect the effect achieved by the present invention. The water inlet 243 communicates with the first chamber 2021. The water outlet 244 communicates with the second chamber 2022. In this embodiment, the water inlet 243 and the water outlet 244 have a flat form to minify the volume of the present invention and slim the present invention.
The rotor assembly 21 is received in the second chamber 2022. The rotor assembly 21 has a hub 211 and a blade wheel 212. A rotary shaft 213 downward extends from the hub 211. The rotary shaft 213 is passed through the bearing 26 and inserted in the bearing hole 2031. A flow way 214 is annularly formed on one side of the blade wheel 212. The flow way 214 communicates with the first and second chambers 2021, 2022. A magnetic member 25 is annularly disposed on inner circumference of the rotor assembly 21.
The flow guide plate 22 is disposed on the outer circumference of the rotor assembly 21 to fully cover the second chamber 2022 so as to uncommunicate the second chamber 2022 from the first chamber 2021. The flow guide plate 22 has a top face 221 and a bottom face 222. At least one raised body 2211 is formed on the top face 221 to abut against the enclosure member 24. The bottom face 222 covers the outer circumference of the rotor assembly 21.
The stator assembly 23 is received in the cavity 205. The stator assembly 23 is composed of multiple silicon steel sheets 231, which are stacked on each other. The center of the stator assembly 23 is formed with a perforation 233 for fitting on the fitting section 2053 of the cavity 205. The stator assembly 23 has multiple poles 232 respectively correspondingly received in the gaps 2052 of the cavity 205. In other words, the configuration of the gaps 2052 is varied with the configuration of the poles 232, whereby the poles 232 can be correspondingly received in the gaps 2052.
In addition, a stator cover 27 is correspondingly disposed on outer side of the stator assembly 23 to cover and fix the stator assembly 23 in the case 20. The stator cover 27 is formed with an opening 271. The second side 20b of the case 20 is formed with a receiving recess 206. A circuit board 28 is connected with the opening 271 and disposed in the receiving recess 206. In this embodiment, the receiving recess 206 is, but not limited to, formed on the second side 20b of the case 20 between the water inlet 243 and the water outlet 244 for illustration purposes. Alternatively, the receiving recess 206 can be selectively disposed along the periphery of the second side 20b of the case 20 (as shown in
The enclosure member 24 is correspondingly disposed on the case 20 to cover the case 20. The enclosure member 24 and the flow guide plate 22 define therebetween a communication chamber 241 in communication with the first chamber 2021 and the flow way 214.
In this embodiment, the case 20 and the enclosure member 24 has a hexagonal configuration for illustration purposes. Each corner of the case 20 is formed with a connection section 207 and each corner of the enclosure member 24 is formed with an assembling section 242 for correspondingly assembling and connecting with the connection section 207. The case 20 and the enclosure member 24 can be connected by means of engagement, insertion or adhesion. Alternatively, the case 20 and the enclosure member 24 can be connected by means of screws (not shown) or any other locking components.
Please now refer to
In conclusion, in comparison with the conventional pump structure, the present invention has the following advantages:
The present invention has been described with the above embodiments thereof and it is understood that many changes and modifications in such as the form or layout pattern or practicing step of the above embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.
