CN209856111U - Heat radiation structure and car of electronic water pump - Google Patents

Abstract

The utility model is suitable for an automobile-used electronic water pump technical field, the utility model provides an electronic water pump's heat radiation structure and car, electronic water pump includes motor assembly, water seat assembly, the water pump axle, impeller and controlling means, water seat assembly has the coolant liquid chamber, motor assembly, water pump axle and impeller set up in the coolant liquid intracavity, motor assembly sets up respectively in water pump axle both ends with the impeller, the outer wall of water seat assembly is provided with the liquid pipe that leads to that is used for supplying the coolant liquid to flow through, the one end fixed connection that leads to the liquid pipe is in or integrated into one piece in the outer wall of water seat assembly, and lead to the liquid pipe and be provided with the logical liquid interface that feeds through in the coolant liquid chamber, controlling means sets up in the outer wall. The utility model provides a pair of electronic pump's heat radiation structure and car, it adopts the water-cooling heat dissipation to replace traditional forced air cooling heat dissipation, and good heat dissipation is not subject to ambient temperature, even when ambient temperature is higher than controlling means's temperature, heat abstractor also can obtain the heat dissipation.

Description

Heat radiation structure and car of electronic water pump

Technical Field

The utility model belongs to the technical field of automobile-used electronic pump, especially, relate to an electronic pump's heat radiation structure and car.

Background

Along with the increasing attention of energy-saving and environment-friendly policies, the traditional engine mechanical water pump needs to provide power for the mechanical water pump at the cost of reducing the heat efficiency of an engine, the automobile electronic water pump is popularized with the advantage of low energy consumption, when the electronic water pump works, a control device of the electronic water pump can generate a large amount of heat, if the heat cannot be effectively diffused, once the heat is gathered, the control element of the electronic water pump is damaged, and then the electronic water pump is disabled, so that serious consequences are caused. The conventional electronic water pump control device is a ceramic-based circuit board which is connected to a water pump rear cover, and ceramic heat dissipation has high cost, is easy to break and has poor reliability; the other circuit board material of the electronic water pump control device is epoxy resin, and although the material cost is low, the heat dissipation performance is poor.

At present, the main heat dissipation mode of the electronic control device of the electronic water pump for the automobile is air cooling heat dissipation, the heat dissipation performance is poor, the heat dissipation performance is limited by the environment temperature (80-140 ℃), and when the environment temperature is higher than the temperature of the control device, the heat dissipation plate can not dissipate heat.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide an electronic water pump's heat radiation structure and car, it adopts the water-cooling heat dissipation to replace the air-cooled heat dissipation, and good heat dissipation is not subject to ambient temperature, even when ambient temperature is higher than controlling means's temperature, heat abstractor also can obtain the heat dissipation.

The technical scheme of the utility model is that: the utility model provides an electronic water pump's heat radiation structure, electronic water pump includes motor assembly, water seat assembly, water pump shaft, impeller and controlling means, water seat assembly has the coolant liquid chamber, motor assembly, water pump shaft and impeller set up in the coolant liquid intracavity, motor assembly with the impeller set up respectively in water pump shaft both ends, the outer wall of water seat assembly is provided with the logical liquid pipe that is used for supplying the coolant liquid to flow through, the one end fixed connection who leads to the liquid pipe or integrated into one piece in the outer wall of water seat assembly, just lead to the liquid pipe be provided with communicate in the logical liquid interface in coolant liquid chamber, controlling means set up in lead to the outer wall of liquid pipe.

Optionally, the liquid inlet is a liquid outlet, the water seat assembly is further provided with a liquid inlet, and the direction of the liquid inlet is perpendicular to the direction of the liquid outlet.

Optionally, the water seat assembly includes a water seat body, the motor assembly, the water pump shaft and the impeller are arranged along an axial direction of the water seat body, the liquid through pipe is arranged along a radial direction or a tangential direction of the water seat body, and the liquid inlet is arranged along the axial direction of the water seat body.

Optionally, the water seat body is a tubular structure with two open ends, the water seat body further comprises a front cover cap and a rear cover cap, the front cover cap is connected to one end of the water seat body, the rear cover cap is connected to the other end of the water seat body, and the liquid inlet is arranged in the front cover cap.

Optionally, the front cover and the rear cover are both flanges.

Optionally, the water pump shaft is provided with a shoulder for locating the motor assembly and the impeller.

Optionally, the control device is fixed on the outer wall of the liquid through pipe through a screw;

or the control device is fixed on the outer wall of the liquid through pipe through an adhesive.

Optionally, the control device is connected to the motor assembly by wiring.

Optionally, the control device comprises a control panel and a control panel housing, the control panel is arranged in the control housing, and the control housing is arranged on the outer wall of the liquid through pipe.

Optionally, the motor assembly includes a stator and a rotor, the stator and the rotor are hollow and cylindrical, the stator is sleeved on the rotor, and the rotor is sleeved on one end of the water pump shaft; and/or, the impeller includes flabellum and fan seat, the bottom or/and the top of flabellum are fixed in fan seat, just the flabellum integrated into one piece in fan seat. The utility model also provides an automobile, include as in the above-mentioned an electronic pump's heat radiation structure.

The utility model provides a heat radiation structure and car of electronic pump, the outer wall of its electronic pump water seat assembly is provided with the logical liquid pipe that is used for supplying the coolant liquid to flow through, it is provided with the logical liquid interface that feeds through in the cooling liquid chamber in the water seat assembly to lead to the liquid pipe, controlling means sets up in the outer wall that leads to the liquid pipe, the heat that controlling means during operation produced distributes from leading to liquid interface exhaust mode through the coolant liquid, adopt water-cooling heat dissipation to replace traditional air-cooled heat dissipation promptly, good heat dissipation, not be subject to ambient temperature, even when ambient temperature is higher than controlling means's temperature, heat abstractor also can obtain the heat dissipation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a heat dissipation structure of an electronic water pump according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a water seat assembly in a heat dissipation structure of an electronic water pump according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, installed, connected, or indirectly disposed and connected through intervening components and intervening structures.

In addition, in the embodiments of the present invention, if there are the orientations or positional relationships indicated as "axial," "radial," "tangential," "front," "rear," "inner," "outer," "out," "in," "thin," etc., they are only for convenience of description and simplification of the description, and they are not intended to indicate or imply that the structures, features, devices, or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limitations of the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.

As shown in fig. 1 and 2, an embodiment of the present invention provides a heat dissipation structure of an electronic water pump, the electronic water pump can include a motor assembly, a water seat assembly, a water pump shaft 5, an impeller 6 and a control device 2, the water seat assembly can have a cooling liquid chamber 12, the motor assembly, the water pump shaft 5 and the impeller 6 can be all disposed in the cooling liquid chamber 12, and the water pump shaft 5 can be mounted on the water seat assembly. The outer wall of water seat assembly can be provided with the liquid pipe 11 that leads to that is used for arranging the confession coolant liquid to flow through, and the one end fixed connection that leads to liquid pipe 11 or integrated into one piece in the outer wall of water seat assembly, and lead to liquid pipe 11 and can be provided with the liquid interface that leads to that communicates in coolant liquid chamber 12, controlling means 2 can set up in the outer wall that leads to liquid pipe 11, and the coolant liquid takes away the heat that controlling means 2 work produced when passing through liquid pipe 11. When the electronic water pump works, the control device 2 is arranged on the outer wall of the liquid through pipe 11 in a leaning mode, cooling liquid flows through the liquid through pipe 11 to take away heat generated by the control device 2, namely, the traditional air cooling heat dissipation is replaced by water cooling heat dissipation, the heat dissipation performance is good, the cooling device is not limited by ambient temperature, and even when the ambient temperature is higher than the temperature of the control device 2, the heat dissipation device can also dissipate heat.

Optionally, the thickness of the outer wall of the liquid through pipe 11 provided with the control device 2 may be set to be thinner than other positions of the water seat assembly, and the specific size is determined according to the actual design condition, making the outer wall of the liquid through pipe 11 thinner is beneficial to transferring the heat generated by the control device 2 during operation to the cooling liquid flowing through the liquid through pipe 11, i.e. heat dissipation is beneficial.

As shown in fig. 1 and fig. 2, the liquid inlet may be a liquid outlet 15, and the water seat assembly may further be provided with a liquid inlet 71, and the direction of the liquid inlet 15 may be perpendicular to the direction of the liquid outlet 71.

As shown in fig. 1 and fig. 2, optionally, the water seat assembly may include a water seat body 1, the motor assembly, the water pump shaft 5 and the impeller 6 may be disposed along an axial direction of the water seat body 1, the liquid through pipe 11 may be disposed along a radial direction or a tangential direction of the water seat body 1, the liquid inlet 15 may be disposed along the axial direction of the water seat body 1, that is, the liquid inlet and the liquid outlet of the water seat assembly are communicated, the cooling liquid enters the water seat body 1 along the axial direction, and exits the water seat body 1 along the radial direction.

As shown in fig. 2, further, one of the outer walls of the liquid flowing pipe 11 can be tangent to the outer wall of the water seat body 1, so that the control device 2 can be arranged on the liquid flowing pipe 11 by the outer wall of the liquid flowing pipe 11, and the occupied space of the liquid flowing pipe 11 is reduced, and the structure is simple and compact; when the cooling liquid flows through the liquid conduit 11, the generated heat emitted by the control device 2 is transferred to the cooling liquid through the outer wall of the liquid conduit 11 and is then carried away by the cooling liquid.

Or, as another implementation manner of the arrangement of the liquid flowing pipe 11, the liquid flowing pipe 11 can be perpendicular to the central axis of the water seat body 1, and then the liquid flowing pipe 11 has at least two side walls for the control device 2 to select and arrange. Of course, the arrangement of the liquid passing tube 11 may be such that the area of the side wall of the liquid passing tube 11 is set for the control device 2, and is determined by actual conditions and is not limited.

As shown in fig. 1, optionally, the water seat body 1 may be a cylindrical structure with two open ends, the water seat body 1 may further include a front cover 7 and a rear cover 8, the front cover 7 may be connected to one end of the water seat body and close to the stator 3, the rear cover 8 may be connected to one end of the water seat body and close to the impeller 6, the liquid inlet 71 may be disposed on the front cover 7, so that the cooling liquid enters the water seat body 1 along the axial direction of the water seat body 1, and the rear cover 8 closes one end of the water seat body 1.

As shown in fig. 1, optionally, both the front cover 7 and the rear cover 8 may be flanges, that is, the front cover 7 integrates the axial liquid inlet of the electronic water pump 5 and a flange installed at one end of the water seat body 1, and the rear cover 8 is a flange installed at the other end of the water seat body 1 and capable of preventing the coolant from leaking out of the water seat body 1.

Furthermore, the shape and the hole position of the two ends of the water seat body 1 can be arranged corresponding to the shape and the hole position of the front cover 7 and the rear cover 8, so that the front cover 7 and the rear cover 8 completely cover the two ends of the water seat body 1, and the front cover 7 and the rear cover can be fixed on the water seat body 1 through screws 9.

As shown in fig. 1, the water pump shaft 5 may be optionally provided with a shoulder (not shown), and the motor assembly and the impeller 6 are respectively located at both sides of and positioned by the shoulder.

As shown in fig. 1 and 2, the control device 2 may alternatively include a control panel (not shown) and a control panel housing 21, and the control panel housing 21 is provided at a side wall of the liquid passing tube 11. When the electronic water pump works, the heat generated by the control panel is transmitted to the cooling liquid flowing through the liquid through pipe 11 through the control panel housing 21 and the side wall of the liquid through pipe 11 in sequence for heat dissipation.

Alternatively, the control board may employ a ceramic material or an epoxy material. Understandably, the utility model provides a ceramic material fracture can be avoided effectively to the heat radiation structure, epoxy's thermal diffusivity still can be improved effectively.

As shown in fig. 1 and 2, alternatively, the control device 2 may be fixed to the outer wall of the liquid passing pipe 11 by screws 9, and the outer wall of the liquid passing pipe 11 may be provided with control plate mounting holes 14 into which the screws 9 are inserted, i.e., the control plate housing 21 is fixed to the outer wall of the liquid passing pipe 11 by the screws 9.

Alternatively, as another implementation way of fixing the control device 2 to the outer wall of the liquid passing tube 11, the control device 2 may be fixed to the outer wall of the liquid passing tube 11 by an adhesive, that is, the control plate housing 21 is fixed to the outer wall of the liquid passing tube 11 by an adhesive, and the adhesive may have a heat conducting property.

As shown in fig. 1, the motor assembly may alternatively include a stator 3 and a rotor 4, the stator 3 and the rotor 4 may be hollow and cylindrical, the stator 3 may be sleeved on the rotor 4, the rotor 4 may be sleeved on one end of the water pump shaft 5, and the control board is connected to and controls the stator 3 by means of a wire. When the electronic water pump works, the control panel receives an external signal, forms an internal signal through recognition and conversion, sends an instruction to be transmitted to the rotor 4 and prompts the rotor 4 to work, and the control panel feeds back the state forming signals of the stator 3 and the rotor 4 through reading the states of the stator 3 and the rotor 4.

As shown in fig. 1, the stator 3 may alternatively have a hollow cylindrical shape and include a core (not shown) and a winding (not shown), and the rotor 4 may have a hollow cylindrical shape.

And/or, the impeller 6 may include blades 61 and a fan base 62, the bottom and/or top of the blades 61 may be fixed to the fan base 62, and the blades 61 may be integrally formed on the fan base 62 by injection molding.

Alternatively, the control device 2 may be connected to the motor assembly by wiring. Further, the control board is connected to the stator 3 through a wiring.

Alternatively, the water pump shaft 5 may be made of steel, and may bear a large contact pressure stress and a large high tensile stress, and the water pump shaft 5 may be installed in the center of the electronic water pump.

As shown in fig. 1 and 2, optionally, a lightening hole 13 for lightening the weight of the water base assembly may be arranged around the cooling liquid cavity 12, and the lightening hole 13 not only reduces the overall weight of the electronic water pump, but also can reduce consumables.

As shown in fig. 2, the lightening holes 13 may be through holes, and the lightening holes 13 are arranged as through holes to achieve the lightening of the water seat body 1 as much as possible. Of course, the penetration may not be complete, and may be determined in accordance with actual circumstances.

As shown in fig. 2, the lightening holes 13 may alternatively be crescent-shaped or ring-shaped, the cooling liquid cavity 12 is generally hollow and cylindrical, the lightening holes 13 may be arranged around the cooling liquid cavity 12, and when the cooling liquid cavity 12 deviates from the central axis of the water seat body 1, the lightening holes 13 may be crescent-shaped and located on the side of the water seat body 1 from which the cooling liquid cavity 12 deviates; when the cooling liquid cavity 12 is disposed at the central axis of the water seat body 1, the lightening holes 13 may be annular and surround the cooling liquid cavity 12. Of course, the lightening holes 13 can also be provided in other shapes.

As shown in fig. 2, the lightening holes 13 may be provided with one, one crescent-shaped lightening hole 13 or one annular lightening hole 13; the lightening holes 13 may be provided in plural, and the plurality of lightening holes 13 having different shapes may be provided around the cooling liquid chamber 12 to form a crescent shape, or the plurality of lightening holes 13 having the same shape may be provided around the cooling liquid chamber 12 to form a ring shape.

In the embodiment, when the electronic water pump works, the stator 3 is electrified to form a magnetic field, the rotor 4 is driven to rotate around the fixed shaft to work, the rotor 4 rotates to drive the water pump shaft 5 to rotate, and further the impeller 6 is driven to rotate, so that kinetic energy is provided for the flowing of cooling liquid in the water base assembly; under the action of the impeller 6, cooling liquid is sucked into the water seat body 1 from the liquid inlet of the front cover cap 7 along the axial direction of the water seat assembly, and then flows out from the liquid through pipe 11 arranged on the front water seat body 1 along the radial direction of the water seat body 1, namely the cooling liquid is discharged out of the water seat body 1; and the heat generated by the control plate installed on the outer wall of the liquid through pipe 11 when working is taken away by the cooling liquid passing through the liquid through pipe 11, thereby reducing the temperature of the control plate, if the temperature of the control plate reaches 150 ℃ when working, the temperature of the control plate is taken away by the cooling liquid passing through the liquid through pipe 11, and the temperature of the cooling liquid itself rises to 80-110 ℃.

Furthermore, the heat dissipation structure can realize control panel cooling closed-loop control, when the engine works in a high-load state, the ambient temperature of the electronic water pump is increased, the temperature of the control panel of the electronic water pump is also higher, and the electronic water pump is located at a high-flow working point, so that the heat dissipation of the control panel of the electronic water pump is enhanced, and therefore the heat dissipation structure can adjust the flow of the water pump according to the working condition of the engine, and further adjust the temperature of the control panel.

The embodiment of the utility model provides a still provide an automobile, include as mentioned in the above-mentioned an electronic water pump's heat radiation structure, can effectively avoid the during operation high temperature, can prolong the life of automobile.

The embodiment of the utility model provides a heat radiation structure and car of electronic water pump, it sets up in the liquid pipe 11 outer wall of electronic water pump through controlling means 2 back to, and the coolant flow in the electronic water pump drives away controlling means 2 heat, and controlling means 2 can be strengthened to this structure, increases the reliability of controlling means 2 work, adopts water-cooling heat dissipation to replace traditional air-cooled heat dissipation promptly, is not restricted to ambient temperature, even when ambient temperature is higher than the temperature of controlling means 2, heat abstractor 2 also can obtain the heat dissipation; meanwhile, closed-loop heat dissipation control is adopted, so that the heat dissipation capacity consumption of the water pump is reduced, the heat dissipation reliability is improved, and the problem that the cooling capacity is insufficient in the traditional air cooling method is effectively solved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims (10)

1. The utility model provides an electronic water pump's heat radiation structure, electronic water pump includes motor assembly, water stand assembly, water pump shaft, impeller and controlling means, water stand assembly has the coolant liquid chamber, motor assembly, water pump shaft and impeller set up in the coolant liquid intracavity, motor assembly with the impeller set up respectively in water pump shaft both ends, a serial communication port, the outer wall of water stand assembly is provided with the logical liquid pipe that is used for the coolant liquid to flow through, the one end fixed connection of logical liquid pipe or integrated into one piece in the outer wall of water stand assembly, just logical liquid pipe be provided with communicate in the logical liquid interface in coolant liquid chamber, controlling means set up in the outer wall of logical liquid pipe.

2. The heat dissipation structure of an electronic water pump as claimed in claim 1, wherein the liquid inlet is a liquid outlet, and the water seat assembly further includes a liquid inlet, and a direction of the liquid inlet is perpendicular to a direction of the liquid outlet.

3. The heat dissipation structure of an electronic water pump according to claim 2, wherein the water seat assembly includes a water seat body, the motor assembly, the water pump shaft, and the impeller are disposed along an axial direction of the water seat body, the liquid inlet pipe is disposed along a radial direction or a tangential direction of the water seat body, and the liquid inlet port is disposed along the axial direction of the water seat body.

4. The heat dissipation structure of an electronic water pump as claimed in claim 3, wherein the water seat body is a cylindrical structure with two open ends, the water seat body further comprises a front cover cap and a rear cover cap, the front cover cap is connected to one end of the water seat body, the rear cover cap is connected to the other end of the water seat body, and the liquid inlet is disposed on the front cover cap.

5. The heat dissipating structure of an electronic water pump as claimed in claim 4, wherein the front cover and the rear cover are flanges.

6. The heat dissipating structure of an electric water pump as claimed in claim 1, wherein the water pump shaft is provided with a shoulder for positioning the motor assembly and the impeller.

7. The heat dissipating structure of an electronic water pump as claimed in claim 1, wherein the control unit is fixed to an outer wall of the liquid passing pipe by a screw;

or the control device is fixed on the outer wall of the liquid through pipe through an adhesive.

8. The heat dissipation structure of an electronic water pump as claimed in claim 1, wherein the control device is connected to the motor assembly through a wire.

9. The heat dissipating structure of an electronic water pump as claimed in claim 1, wherein the control unit includes a control board and a control board housing, the control board being disposed in the control board housing, the control board housing being disposed on an outer wall of the liquid passing pipe.

10. An automobile characterized by comprising the heat dissipation structure of an electronic water pump as set forth in any one of claims 1 to 9.