CN220267961U - High-efficient heat dissipation formula electron water pump - Google Patents

Abstract

The utility model discloses a high-efficiency heat dissipation type electronic water pump, which comprises: a motor assembly and a controller assembly; the motor assembly comprises a motor shell and a shielding assembly arranged in the motor shell; the shielding assembly comprises a shielding sleeve and a shielding base arranged on one side of the shielding sleeve facing the controller assembly; the controller assembly comprises an outer shell and control components which are arranged in the outer shell; an opening communicated with the shielding base is formed on the end face of the outer shell facing the shielding base; and at least one layer of heat conducting pad is arranged between the shielding base and the opening.

Description

High-efficient heat dissipation formula electron water pump

Technical Field

The utility model relates to the technical field of water pumps, in particular to a high-efficiency heat-dissipation type electronic water pump.

Background

In the operation of the hydrogen energy battery system, the battery management system, the energy storage monitoring system and other systems can generate a large amount of heat, if the temperature of the energy storage battery pack is not well controlled, the temperature of the battery is unstable, and the risks of short circuit of the battery and damage to peripheral components are increased. In order to guarantee the efficient operation of the energy storage system at any time, it is critical to increase the heat dissipation capacity of the energy storage system, and the efficient heat dissipation type electronic water pump is used for providing circulating power for cooling liquid for heat dissipation of the energy storage system, so that the circulating speed of the cooling liquid is increased, and the heat dissipation capacity of the energy storage system is improved.

For the high-efficiency heat-dissipation type electronic water pump applied to the energy storage system, the power of the high-efficiency heat-dissipation type electronic water pump directly influences the heat dissipation effect of the energy storage system, and the synchronous increase of the power of the high-efficiency heat-dissipation type electronic water pump also increases the heat dissipation requirement of the high-efficiency heat-dissipation type electronic water pump. In order to achieve the heat dissipation effect of the high-efficiency heat dissipation type electronic water pump, in the prior art, heat generated by operation of a motor winding in an inner cavity of a shell is generally taken away by flowing of liquid in a shielding sleeve arranged in the shell of the water pump, so that when the water pump works, the liquid in a pump cavity flows into the shielding sleeve of the shell, flows through the bottom of the shielding sleeve and then flows back into the pump cavity from a central hole of a rotating shaft to form water circulation. For example, but not limited to, the brushless motor water pump disclosed in CN215646539U, in which the shield sleeve is directly connected to the front end cover and is not in contact with the shield base, the heat dissipation in the casing of the water pump is guaranteed by this insulation method, but the heat dissipation effect of the controller of the water pump is limited because the liquid in the shield sleeve does not pass through the shield base.

Furthermore, for the heat dissipation process of the controller, the outer diameter of the side end face of the shielding sleeve facing the controller also affects the heat exchange efficiency of the controller, for example, a shielding sleeve injection molding assembly, a shielding sleeve assembling assembly and a shielding water pump motor disclosed in the prior art with publication number CN217445184U, for a general water pump, a chamber for assembling the controller is generally at the side end of the shielding sleeve facing away from the impeller, that is, the outer diameter of the chamber of the shielding sleeve facing the assembling controller is smaller than the outer diameter of the main body part of the shielding sleeve and the part facing the impeller, and in this structure, the heat dissipation effect of the shielding sleeve on the controller assembly is limited by the outer diameter of the shielding sleeve, so that the heat dissipation effect of the controller assembly needs to be further optimized.

Disclosure of Invention

The first object of the present utility model is to provide a high-efficiency heat dissipation type electronic water pump, so as to solve the technical problem of improving the overall heat dissipation effect.

The high-efficiency heat-dissipation type electronic water pump is realized by the following steps:

an efficient heat dissipation type electronic water pump, comprising: a motor assembly and a controller assembly; wherein the method comprises the steps of

The motor assembly comprises a motor shell and a shielding assembly arranged in the motor shell; the shielding assembly comprises a shielding sleeve and a shielding base arranged on one side of the shielding sleeve facing the controller assembly;

the controller assembly comprises an outer shell and a control component which is arranged in the outer shell; an opening communicated with the shielding base is formed on the end face of the outer shell, facing the shielding base; and

at least one layer of heat conducting pad is arranged between the shielding base and the opening.

In an alternative embodiment of the present utility model, the thermal pad is made of thermal silicone grease.

In an alternative embodiment of the present utility model, the shielding sleeve includes a cylindrical body and an extension cylinder disposed at one end of the cylindrical body for coupling with a shielding base;

the outer diameter of the extension cylinder is larger than that of the cylindrical body.

In an alternative embodiment of the present utility model, a sealing ring is further disposed between the extension tube and the shielding base.

In an alternative embodiment of the utility model, the end edge of the extension cylinder far away from the cylindrical body is also provided with an extension table extending along the radial direction; the extension table is suitable for being pressed against the shielding base.

In an alternative embodiment of the utility model, a bearing chamber is also formed in the shield mount.

In an alternative embodiment of the utility model, the shielding base comprises a main body part for sealing and connecting with the shielding sleeve and an annular wing part arranged on the circumferential outer side of the main body part and used for being clamped between the motor casing and the outer casing; wherein the method comprises the steps of

The bearing chamber is formed in the body portion.

In an alternative embodiment of the utility model, the rim of the open mouth is formed with a countersink adapted for partial embedding of the annular wing.

In an alternative embodiment of the utility model, the motor assembly further comprises a stator structure and a rotor structure built into the motor housing; the shielding sleeve is arranged between the stator structure and the rotor structure;

the motor casing comprises a casing body formed with a containing cavity;

the stator structure comprises an enameled wire and a framework for winding the enameled wire;

an annular protective fence is arranged between the framework and the cavity wall of the accommodating cavity of the shell body.

In an alternative embodiment of the utility model, the annular guard rail is integrally formed on the skeleton.

By adopting the technical scheme, the utility model has the following beneficial effects: according to the high-efficiency heat-dissipation type electronic water pump, the opening communicated with the shielding base is formed in the outer shell body of the controller assembly, and the shielding base is matched with at least one layer of heat conducting pad between the contact end face of the opening, so that the motor assembly and the controller assembly are separated in an insulating manner, heat generated by operation of control components in the controller assembly is conducted to the shielding base through the heat conducting pad, the heat is taken away through water circulation in the shielding sleeve through the shielding base, and the heat dissipation effect on the control components is enhanced.

In addition, the shielding sleeve comprises a cylindrical body and an extension cylinder arranged at one end of the cylindrical body and used for being matched with the shielding base; and the outer diameter of the extension cylinder is larger than that of the cylindrical body. Based on the shielding sleeve, the outer diameter of the extension cylinder is increased, namely the size of the shielding base matched with the extension cylinder can be correspondingly increased, so that the heat exchange area of the cooling liquid flowing in the controller component and the shielding component is increased, and the heat dissipation effect on the controller component is improved.

Drawings

FIG. 1 is a schematic diagram of the overall cross-sectional structure of a high-efficiency heat-dissipating electronic water pump of the present utility model;

fig. 2 is a schematic structural view of a shielding assembly of the high-efficiency heat dissipation type electronic water pump of the present utility model;

FIG. 3 is a schematic diagram of the cooperation structure of the shielding base and the controller assembly of the high-efficiency heat-dissipation type electronic water pump;

fig. 4 is a schematic structural view of a shielding case of the high-efficiency heat dissipation type electronic water pump of the present utility model;

FIG. 5 is a schematic diagram of the controller assembly of the high efficiency heat dissipating electronic water pump of the present utility model;

fig. 6 is a schematic structural view of an outer casing of a shielding base of the high-efficiency heat-dissipating electronic water pump of the present utility model;

fig. 7 is a schematic structural view of a skeleton of the high-efficiency heat-dissipating electronic water pump of the present utility model;

fig. 8 is a schematic diagram of a matching structure of a skeleton of the high-efficiency heat-dissipation type electronic water pump and an enameled wire.

In the figure: pump housing 11, impeller 12, housing body 21, stator structure 22, rotor structure 23, rotor shaft 24, shield base 25, main body 251, annular wing 252, arc 253, gap 255, thermal pad 27, shield 3, tubular body 31, extension cylinder 32, extension stand 33, second seal ring 52, outer housing 61, control element 62, opening 63, sink 65, backbone 71, annular guard rail 72, enameled wire 8.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Example 1:

referring to fig. 1 to 6, the present embodiment provides a high-efficiency heat dissipation type electronic water pump, which includes: a pump assembly, a motor assembly, and a controller assembly; wherein the pump assembly comprises a pump housing 11 in mating connection with the motor assembly and an impeller 12 disposed within the pump housing 11.

Next, specifically, first is a motor assembly:

in general terms, the motor assembly comprises a motor housing and a stator structure 22, a rotor structure 23 and a shielding assembly built into the motor housing; the motor housing comprises a housing body 21 formed with a receiving cavity. The shielding assembly here comprises a shielding 3 and a shielding base 25 provided at the side of the shielding 3 facing the controller assembly. Wherein the shielding sleeve 3 is arranged between the stator structure 22 and the rotor structure 23; the stator structure 22 is arranged outside the shielding 3 and the rotor structure 23 is arranged inside the shielding 3. That is, the shield 3 is the main component of the motor assembly of this embodiment that separates the dry and wet areas of the motor assembly into a dry area that houses the stator structure 22 and a wet area that houses the rotor structure 23.

In further detail, the controller assembly includes an outer housing 61 and a control component 62 built into the outer housing 61; the end surface of the outer case 61 facing the shielding base 25 is formed with an opening 63 communicating with the shielding base 25; based on this structure, the shield base 25 can directly exchange heat with the inside of the controller assembly through the open mouth 63.

On the basis of the above structure, in order to further improve the heat dissipation effect on the controller assembly, at least one layer of heat conducting pad 27 is further disposed between the shielding base 25 and the opening 63 in this embodiment, where the heat conducting pad 27 may be directly fixed on the end face of the shielding base 25 facing the opening 63. The heat conducting pad 27 is optionally made of, for example, but not limited to, heat conducting silicone grease, where only one layer of heat conducting pad 27 may be provided, and the thickness of the heat conducting pad 27 may be 1mm, based on this structure, not only the motor assembly is insulated from the controller assembly, but also the heat generated by the operation of the control component 62 in the controller assembly is conducted to the shielding base 25 through the heat conducting pad, so that the heat is taken away by the water circulation in the shielding sleeve 3 through the shielding base 25, and the heat dissipation effect on the control component 62 is enhanced.

The shield base 25 employed in connection with the present embodiment includes a main body portion 251 for sealingly engaging the shield case 3 and an annular wing portion 252 provided on the circumferential outer side of the main body portion 251 for sandwiching between the case body 21 and the outer case 61; the main body 251 is provided therein with a bearing chamber for coupling with a bearing. The liquid in the shielding sleeve 3 can help to reduce the heat generated by the bearing due to friction after entering the bearing chamber, so that the service life of the bearing can be prolonged.

For the problem of installation and positioning of the shielding base 25, the present embodiment is designed as follows: the rim of the opening 63 is formed with a sinking groove 65 suitable for the partial embedding of the annular wing 252, that is, the sinking groove 65 is designed to limit the circumference direction of the shielding base 25, so that the shielding base 25 cannot shake radially, and the shielding base 25 is fixed more firmly relative to the motor casing for the whole shielding base 25 by the structure of clamping the shielding base 25 between the casing body 21 and the outer casing 61 along the axial direction thereof.

The bearing housing used in this embodiment includes three arcuate portions 253 adapted to enclose a circular structure with a gap 255 between each adjacent two of the arcuate portions 253. Under such a structure, when the high-efficiency heat dissipation type electronic water pump works, due to the existence of pressure difference in the pump housing 11, liquid circularly flows in the area wrapped by the shielding sleeve 3, after flowing through the bottom of the shielding sleeve 3, the liquid rapidly enters the bearing chamber through the openings 255 arranged among the three arc-shaped parts 253 of the bearing chamber, then enters the through hole in the center of the rotor shaft 24, flows back into the pump housing 11, and then flows out from the outlet of the brushless motor water pump, so that a complete water circulation is formed.

Again, the shield 3:

for the first time, the shield 3 includes a cylindrical body 31 and an extension cylinder 32 provided at one end of the cylindrical body 31 for mating with the shield base 25; and the outer diameter of the extension cylinder 32 is larger than the outer diameter of the cylindrical body 31. A sealing engagement ring 52 is also provided between the extension barrel 32 and the shield mount 25. Based on the shield case 3, the outer diameter of the extension tube 32 is increased, that is, the size of the shield base 25 which is matched with the extension tube 32 is correspondingly increased, so that the heat exchange area of the cooling liquid flowing in the controller assembly and the shield assembly is increased, and the heat dissipation effect on the controller assembly is improved.

On the basis of the above structure, the present embodiment is also designed as follows: the end edge of the extension cylinder 32 far away from the cylindrical body 31 is also provided with an extension table 33 extending along the radial direction; the extension table 33 here is adapted to press against the shielding base 25. The extension stage 33 herein specifically refers to an annular structure formed by extending the end edge of the extension cylinder 32 radially toward the side away from the axial center of the extension stage 33.

Furthermore, the top of the extension table 33 is tightly matched with the main body 251 of the shielding base 25, the shielding base 25 limits the shielding sleeve 3 in the axial direction, and the extension table 33 increases the contact area between the shielding sleeve 3 and the shielding base 25. Under the working condition that the air pressure in the sleeve is large, the wall thickness of the shielding sleeve 3 is increased by the extension table 33, the shielding sleeve 3 is protected, and the service life of the shielding sleeve 3 is prolonged. The bottom of the shielding sleeve 3 and the shielding base 25 are provided with matched rabbets, so that radial eccentricity caused by uneven compression of the second sealing ring 52 is prevented, the shielding sleeve 3 is subjected to torsion force, the reliability of parts is reduced, and the parts are broken eccentrically.

Finally, the controller component:

the controller assembly includes a controller component 62 built into the outer housing 61 and an outer housing 61; the high-efficiency heat dissipation type electronic water pump of this embodiment provides three-phase alternating current output by the control component 62 to the motor assembly, the stator structure 22 generates a rotating magnetic field to drive the rotor structure 23 to rotate, the rotor structure 23 drives the rotor shaft 24 and the impeller 12 to rotate, and the high-efficiency heat dissipation type electronic water pump begins to work.

Regarding the high-efficiency heat dissipation type electronic water pump of the present embodiment:

the impeller 12 rotates along with the rotor structure 23 under the drive of the rotor shaft 24, the rotation of the impeller 12 increases the flow speed and pressure of the liquid in the pump housing 11, and negative pressure is generated at the water inlet pipe of the high-efficiency heat-dissipation type electronic water pump, so that the liquid flows into the pump housing 11; because of the pressure difference in the pump housing 11, the liquid circularly flows in the area wrapped by the shielding sleeve 3, after flowing through the bottom of the shielding base 25, the liquid enters the central through hole of the rotor shaft 24, flows back to the pump housing 11, and then flows out from the water outlet of the high-efficiency heat-dissipation type electronic water pump, so that a complete water circulation is formed.

Example 2:

referring to fig. 7 and 8, based on the high-efficiency heat dissipation type electronic water pump of embodiment 1, the stator structure 22 of the high-efficiency heat dissipation type electronic water pump provided in this embodiment includes an enameled wire 8 and a framework 71 for winding the enameled wire 8; wherein an annular guard rail 72 is provided between the skeleton 71 and the cavity wall of the housing cavity of the case body 21. In a preferred embodiment, the annular guard rail 72 is integrally formed with the frame 71.

More specifically, the material of the skeleton 71 adopted in the embodiment can be PA66 material, the thermal deformation temperature of the material is more than or equal to 260 ℃, the working temperature of the high-efficiency heat dissipation type electronic water pump is met, the wall thickness is more than or equal to 1mm, and the structural strength meets the standard of plastic parts. The annular protective fence 72 can play an insulating protection role on the coil (the enameled wire 8), so that arc discharge and electric leakage are prevented from being generated between the enameled wire 8 and the shell body 21, and the operation safety of the high-efficiency heat-dissipation type electronic water pump is improved.

The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present utility model, and are more fully described herein with reference to the accompanying drawings, in which the principles of the present utility model are shown and described, and in which the general principles of the utility model are defined by the appended claims.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

Claims (10)

1. An efficient heat dissipation type electronic water pump, comprising: a motor assembly and a controller assembly; wherein the method comprises the steps of

The motor assembly comprises a motor shell and a shielding assembly arranged in the motor shell; the shielding assembly comprises a shielding sleeve and a shielding base arranged on one side of the shielding sleeve facing the controller assembly;

the controller assembly comprises an outer shell and a control component which is arranged in the outer shell; an opening communicated with the shielding base is formed on the end face of the outer shell, facing the shielding base; and

at least one layer of heat conducting pad is arranged between the shielding base and the opening.

2. The high efficiency heat dissipating electronic water pump of claim 1, wherein the thermal pad is made of thermally conductive silicone grease.

3. The high-efficiency heat dissipation type electronic water pump as set forth in claim 1 or 2, wherein the shield case comprises a cylindrical body and an extension cylinder provided at one end of the cylindrical body for being coupled with a shield base;

the outer diameter of the extension cylinder is larger than that of the cylindrical body.

4. The high-efficiency heat-dissipation electronic water pump as recited in claim 3, wherein a sealing ring is further provided between the extension tube and the shielding base.

5. The efficient heat dissipation type electronic water pump as recited in claim 4, wherein an extension table extending along the radial direction is further arranged at the edge of the end part of the extension cylinder far away from the cylindrical body; the extension table is suitable for being pressed against the shielding base.

6. The high efficiency heat dissipating electronic water pump of claim 1 further comprising a bearing chamber formed in the shield base.

7. The high-efficiency heat-dissipating electronic water pump of claim 6, wherein the shield base comprises a main body portion for sealing engagement with the shield case and an annular wing portion provided on a circumferential outer side of the main body portion for sandwiching between the motor casing and the outer casing; wherein the method comprises the steps of

The bearing chamber is formed in the body portion.

8. The high efficiency heat dissipating electronic water pump of claim 7, wherein the open rim is formed with a sink adapted for partial embedding of the annular wing.

9. The high efficiency heat dissipating electronic water pump of claim 1, wherein the motor assembly further comprises a stator structure and a rotor structure built into the motor housing; the shielding sleeve is arranged between the stator structure and the rotor structure; wherein the method comprises the steps of

The motor casing comprises a casing body formed with a containing cavity;

the stator structure comprises an enameled wire and a framework for winding the enameled wire;

an annular protective fence is arranged between the framework and the cavity wall of the accommodating cavity of the shell body.

10. The high efficiency heat dissipation electronic water pump of claim 9 wherein the annular guard rail is integrally formed on the frame.