TWM565754U - Double cooling electronic water pump - Google Patents

Abstract

A dual-cooled electronic water pump includes a fuselage unit and a water unit. The airframe unit includes a casing, a motor cover disposed on the casing, a heat dissipation cover disposed on an outer chamber of the motor cover, and a sleeve disposed between the casing and the motor cover. The water sluice unit includes a stator between the casing and the sleeve, a rotating shaft passing through the casing and the sleeve, a rotor fixed to the rotating shaft, and a fixing on the rotating shaft and located at the rotating shaft The impeller in the muddy space. The present invention also immerses the rotor in a fluid for further heat dissipation and transmits the thermal energy generated by the stator through the sleeve as compared to the prior art. In addition, the heat dissipation cover can also be provided with a control module, and the control module can be efficiently radiated by contacting the heat dissipation cover through a large area of water flow.

Description

Double cooling electronic water pump

The invention relates to a water-repellent device, in particular to a double-cooled electronic water pump.

Referring to FIG. 1 and FIG. 2, the conventional water pump 1 includes a housing 11 defining a hydrophobic space 110, a rotating shaft 12 rotatably disposed in the housing 11 and hollow to define a through slot 120, and a fixing shaft 12 a stator 13 in the outer casing 11 and surrounding the rotating shaft 12, a rotor 14 fixed on the rotating shaft 12 between the rotating shaft 12 and the stator 13, and a fixed on the rotating shaft 12 and located in the hydrophobic space 110 The impeller 15 inside. The housing 11 includes a housing 111 and a cover 112 that is disposed on the housing 111. The housing 111 defines a flow channel 113 that communicates with the through slot 120 of the rotating shaft 12 and cooperates with the cover 112 to define the hydrophobic space 110. The cover 112 defines a water inlet 114 that communicates with the water space 110, a water outlet 115 that communicates with the water space 110, and a flow guiding passage 116 that communicates with the water inlet 114 and the circulation water channel 113.

The stator 13 can drive the rotor 14 to rotate the rotating shaft 12, and rotate the impeller 15 to generate centrifugal suction force in the hydrophobic space 110, so that fluid can be sucked into the hydrophobic space 110 from the water inlet 114. The suction of the water space 110 also causes the through groove 120 of the rotating shaft 12 to generate a negative pressure, so that a part of the fluid is sucked into the flow guiding passage 116 by the negative pressure when entering the water inlet 114, and flows through the circulating water passage. 113 and the through groove 120 are sent to the hydrophobic space 110, and the fluid in the hydrophobic space 110 is discharged from the water outlet 115. The water pump 1 circulates through the fluid in the flow guiding channel 116, the flow channel 113, the channel 120, and the hydrophobic space 110, and the cooling shaft 12 and the rotor 14 are cooled. However, the cooling water channel cannot be aligned with the rotating shaft. The cooling of the stator 13 at 12 and the rotor 14 is lowered, resulting in poor heat dissipation, so there is still room for improvement.

Therefore, the purpose of the present invention is to provide a water pump with better heat dissipation effect.

Thus, the novel dual-cooled electronic water pump includes a fuselage unit and a water unit. The airframe unit includes a casing, a motor cover disposed on the casing, a heat dissipation cover disposed on an outer side of the motor cover and defining a cooling water chamber in cooperation with the motor cover, and a heat dissipation cover disposed thereon A sleeve between the casing and the motor cover and defining an inner chamber. The casing defines a water inlet, a water outlet, a hydrophobic space connecting the water inlet, the water outlet and the inner chamber, and a circulation water path connecting the water storage space. The motor cover defines a communication flow path connecting the circulation water path and the cooling water chamber, a communication hole communicating with the cooling water chamber, and at least one through hole communicating with the cooling water chamber and the inner chamber.

The water sluice unit includes a stator surrounding the sleeve and located between the casing and the sleeve, a rotating shaft penetrating the casing and the sleeve and one end of which is rotatably disposed on the motor cover a rotor located in the inner chamber and rotatable relative to the stator to drive the rotating shaft, and a fixed end of the rotating shaft and located in the hydrophobic space, and being rotatable by the rotating shaft An impeller that generates centrifugal suction in the hydrophobic space. The rotating shaft defines a through groove connecting the connecting hole and the hydrophobic space.

The effect of the novel is that the centrifugal suction in the hydrophobic space can draw the fluid from the water inlet, part of the fluid enters the cooling water chamber through the circulating water passage, and another part of the fluid flows into the inner chamber to soak the rotor In the fluid, and introducing the fluid into the cooling water chamber through the at least consistent hole, the fluid in the cooling water chamber is sucked into the through groove and enters the hydrophobic space due to the negative pressure in the through groove. The fluid in the hydrophobic space is also discharged from the water outlet. Through the two cooling cycles mentioned above, not only the rotating shaft and the rotor can be cooled, but also the stator can pass through the fluid in the sleeve to achieve the heat dissipating effect, and the heat is absorbed only through the hollow rotating shaft compared with the prior art. The rotor is also immersed in the fluid to further dissipate heat, and the heat energy generated by the stator is taken away. In addition, the heat dissipation cover can also be used to dissipate heat from a control module attached thereto, so the present invention does improve. Cooling capacity.

Referring to FIG. 3, FIG. 4 and FIG. 5, an embodiment of the novel dual-cooled electronic water pump 2 includes a fuselage unit 3 and a water-repellent unit 4 disposed in the fuselage unit 3. The airframe unit 3 includes a casing 31 extending along an extending direction A, a motor cover 32 disposed on the casing 31, and a motor cover 32 disposed on the outer side of the motor cover 32 and defining the motor cover 32. a heat dissipating cover 33 of a cooling water chamber 330, a sleeve 34 between the casing 31 and the motor cover 32 along the extending direction A and surrounding an inner chamber 340, and a heat dissipating cover 33 The bottom cover 35 on the outside. The casing 31 has a cover 313 defining a water inlet 311 and a water outlet 312, and an outer casing 314 connecting the cover 313 and the motor cover 32 on opposite sides of the extending direction A. The outer casing 314 defines a flow path 315 extending in the direction of extension A. The cover 313 and the outer casing 314 cooperate to define a water-repellent space 316 that communicates with the water inlet 311, the water outlet 312, and the circulation water path 315. The outer casing 314 is provided with a plurality of openings 317 (shown in phantom in FIG. 3 because they are not cut away) to communicate the hydrophobic space 316 and the inner chamber 340 of the sleeve 34. 5 is a top view of the motor cover 32. The motor cover 32 defines a communication flow path 321 that communicates with the flow water path 315 and the cooling water chamber 330, a communication hole 322 that communicates with the cooling water chamber 330, and a plurality of communication holes 322. The communication hole 322 is annularly arranged to open, and communicates with the cooling water chamber 330 and the through hole 323 of the inner chamber 340 (in FIG. 3, it is not broken, so it is indicated by a broken line).

The water sloshing unit 4 includes a stator 41 surrounding the sleeve 34 and located between the casing 31 and the sleeve 34 in the radial direction of the sleeve 34. The casing 31 is bored in the extending direction A. And a rotating shaft 42 of the sleeve 34 and one end of which is rotatably disposed on the motor cover 32, a rotor 43 located in the inner chamber 340 and fixedly sleeved on the rotating shaft 42, and a shaft fixed to the rotating shaft The other end of the 42 and the impeller 44 in the hydrophobic space 316, and a control module 45 attached to the heat dissipation cover 33 and accommodated in the bottom cover 35. The rotating shaft 42 is hollow and defines a through groove 421 which communicates with the water receiving space 316 and the communication hole 322 of the motor cover 32 at both ends.

Referring to FIG. 4, FIG. 5, and FIG. 6, in this embodiment, the control module 45 is used to drive and control the rotation of the rotor 43 relative to the stator 41 to drive the rotating shaft 42 and the impeller 44 to rotate. When the impeller 44 rotates in the hydrophobic space 316, centrifugal suction is generated, and the external fluid is sucked into the hydrophobic space 316 from the water inlet 311, and a part of the fluid in the hydrophobic space 316 is sucked by the negative pressure. The circulation water path 315 enters the cooling water chamber 330 between the motor cover 32 and the heat radiation cover 33 via the communication flow path 321 of the motor cover 32. The aforementioned circulation direction is indicated by a solid arrow, and a part of The fluid enters the inner chamber 340 through the openings 317 of the outer casing 314, and finally flows into the cooling water chamber 330 through the through holes 323. The foregoing circulation direction is indicated by a dashed arrow, and the The fluid in the cooling water chamber 330 is attracted by the negative pressure to enter the through groove 421 through the communication hole 322, and finally returns to the hydrophobic space 316 again, and the remaining fluid of the hydrophobic space 316 is guided to the outlet. After the nozzle 312 is discharged, the effect of drowning is achieved.In the foregoing fluid circulation, in addition to cooling the rotating shaft 42 through the through groove 421, the rotor 43 is immersed in the fluid through the fluid continuously injected into the inner chamber 340, thereby effectively improving the heat dissipation area and efficiency. The inner chamber 340 is filled with fluid, so that the heat transfer from the stator 41 to the fuselage unit 3 is carried away by relatively low temperature, and the heat dissipating cover 33 for receiving the fluid can also be attached thereto by means of heat conduction. The control module 45 performs heat dissipation. In summary, the present embodiment passes through (1) the hydrophobic space 316 → the circulation water path 315 → the communication flow path 321 → the cooling water chamber 330 → the communication hole 322 → the through groove 421 → the hydrophobic space 316 (indicated by the solid line), and (2) The water cooling space 316 → the opening 317 → the inner chamber 340 → the through hole 323 → the cooling water chamber 330 → the communication hole 322 → the through groove 421 → the hydrophobic space 316 (shown by a broken line) Improve heat dissipation and cooling efficiency.

In summary, in this embodiment, the rotor 43, the stator 41, the rotating shaft 42 and the control module 45 are dissipated through a double cooling cycle, and the cooling capability is high and the efficiency is high, so the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

2‧‧‧Double-cooled electronic water pump
3‧‧‧Face unit
31‧‧‧Shell
311‧‧‧ water inlet
312‧‧ ‧ water outlet
313‧‧‧ Cover
314‧‧‧Outer casing
315‧‧‧Circulating waterway
316‧‧‧汲水空间
317‧‧‧Opening
32‧‧‧Motor cover
321‧‧‧ circulation flow channel
322‧‧‧Connected holes
323‧‧‧through hole
33‧‧‧heating cover
330‧‧‧Cooling water room
34‧‧‧ sleeve
340‧‧‧ inner chamber
35‧‧‧ bottom cover
4‧‧‧Water unit
41‧‧‧ Stator
42‧‧‧ shaft
421‧‧‧through slot
43‧‧‧Rotor
44‧‧‧ Impeller
45‧‧‧Control Module
A‧‧‧ extending direction

Other features and advantages of the present invention will be apparent from the embodiments of the drawings, wherein: FIG. 1 is a perspective view illustrating a conventional water pump; FIG. 2 is a cross-sectional view illustrating the cross-sectional view of FIG. FIG. 3 is a cross-sectional view showing an embodiment of the present invention; FIG. 4 is a perspective view showing a three-dimensional embodiment of the present embodiment; FIG. 5 is a plan view showing a motor in the embodiment. The cover; and FIG. 6 is a cross-sectional view illustrating the fluid flow direction of the present embodiment.

Claims (4)

A dual-cooled electronic water pump comprising: a fuselage unit comprising a casing, a motor cover disposed on the casing, a motor cover disposed outside the motor cover and defining a cooling water in cooperation with the motor cover a heat dissipating cover of the chamber, and a sleeve disposed between the casing and the motor cover and defining an inner chamber, the casing defining a water inlet, a water outlet, a water inlet, and the outlet a water outlet and a water-repellent space of the inner chamber, and a circulation water passage connecting the water-repellent space, the motor cover defines a communication flow path connecting the circulation water path and the cooling water chamber, and a communication connecting the cooling water chamber a hole, and at least one through hole connecting the cooling water chamber and the inner chamber; and a water sluice unit comprising a stator surrounding the outer sleeve of the sleeve and located between the casing and the sleeve a rotating shaft of the casing and the sleeve and one end of which is rotatably disposed on the motor cover, a rotor located in the inner chamber and rotatable relative to the stator to drive the rotating shaft, and a fixing shaft The other end is located in the hydrophobic space and can be The rotating shaft drives the impeller to generate centrifugal suction in the hydrophobic space, and the rotating shaft defines a through groove connecting the connecting hole and the hydrophobic space. The dual-cooled electronic water pump of claim 1, wherein the water-repellent unit further includes a control module attached to the heat dissipation cover. The dual-cooled electronic water pump of claim 2, wherein the casing of the fuselage unit has an outer casing defining the circulating water passage, and a cover that cooperates with the outer casing to define the hydrophobic space . The dual-cooled electronic water pump of claim 3, wherein the airframe unit further includes a bottom cover fixed to the outside of the heat dissipation cover and accommodating the control module.