CN216904450U - High-power coolant pump and insulating radiating component thereof - Google Patents
High-power coolant pump and insulating radiating component thereof Download PDFInfo
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- CN216904450U CN216904450U CN202220058923.2U CN202220058923U CN216904450U CN 216904450 U CN216904450 U CN 216904450U CN 202220058923 U CN202220058923 U CN 202220058923U CN 216904450 U CN216904450 U CN 216904450U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
The utility model discloses a high-power cooling liquid pump and an insulating heat dissipation assembly thereof. The insulating heat dissipation assembly provided by the utility model adopts the combined shielding sleeve of the non-metal and metal material nested integral injection molding structure, fully utilizes the heat conduction characteristic of metal and the insulating characteristic of non-metal, and simultaneously solves the problems of heat dissipation and insulation. The heat conduction aspect adopts a working medium internal circulation mode in the sleeve, and the heat generated by the motor and the chip in the control assembly can be quickly transferred to the internal circulation working medium through the rear cover to realize heat dissipation by utilizing the fluid circulation and the high heat conduction characteristic of the metal sleeve, so that the high-power cooling liquid pump can be free from external circulation heat dissipation by the heat dissipation structure. Meanwhile, the purpose of auxiliary heat dissipation is achieved through the annular heat dissipation fins on the surface of the motor heat dissipation shell.
Description
The technical field is as follows:
the utility model relates to the technical field of vehicle coolant pumps, in particular to a high-power coolant pump and an insulating heat dissipation assembly thereof.
The background art comprises the following steps:
the coolant pump is a key single-machine product of the core of the fuel cell engine heat management system and is used for driving coolant to circularly flow, so that heat generated in the chemical reaction power generation process of the fuel cell stack is taken away, and the normal work of the stack is ensured.
At present, the fuel cell system is gradually expanded from a commercial vehicle platform to the field of a ship or even a train traction locomotive. Fuel cell stacks have been developed over 200 KW. When the electric pile becomes larger, the heat generation amount of the system increases, and the cooling amount increases, so that a cooling liquid pump with larger power is required for circulating heat radiation.
The shielded centrifugal pump has gradually become the best solution for the fuel cell coolant pump due to its advantages of small size, no leakage, high reliability, etc. The shielded pump mainly has two technical schemes of a metal shielding type and a non-metal shielding type. The metal shielding sleeve has the structural characteristics that: the pressure resistance, temperature resistance, high sealing reliability, strong heat dissipation capability and poor insulating capability of the medium to the shell. And the characteristics of the non-metal shielding sleeve are just opposite.
After the cooling liquid pump develops towards high power, the operation heat productivity of the cooling liquid pump is increased rapidly, and the key technical problem which needs to be solved urgently by the high-power cooling liquid pump is how to solve the problem of self heat dissipation and simultaneously can meet the requirement of medium insulation.
The utility model has the following contents:
the utility model aims to provide a high-power cooling liquid pump and an insulating heat dissipation assembly thereof, so as to solve the defects of the prior art.
The utility model is implemented by the following technical scheme: the utility model provides a high-power coolant pump and insulating radiator unit thereof, includes runner assembly, pressure boost subassembly, drive assembly and insulating radiator unit, drive assembly, insulating radiator unit are connected with the runner assembly, pressure boost unit installs in the runner assembly outside, wherein:
the insulating heat dissipation assembly comprises a motor heat dissipation shell, motor stator magnetic steel, a shielding sleeve assembly, a bearing end cover, an insulating support plate, an insulating liner, a heat conduction insulating pad and a rear end cover, wherein one side of the combined shielding sleeve is connected with the bearing end cover through a screw, the motor stator magnetic steel is installed on the other side of the combined shielding sleeve, and the motor heat dissipation shell is installed on the outer side of the motor stator magnetic steel;
the shielding sleeve component comprises a non-metal flange outer sleeve, a front bearing sleeve, a metal thin-wall sleeve and a rear bearing sleeve, wherein the non-metal flange outer sleeve and the front bearing sleeve are integrally injection-molded in an injection molding mode;
the non-metal flange outer sleeve and the front end flange are connected with the motor radiating shell through screws; motor stator magnetic steel is arranged on the outer side of a metal thin-wall sleeve in the combined shielding sleeve, and a first heat conduction insulating surface is arranged between the metal thin-wall sleeve and the motor stator magnetic steel; the outer circular surface of the rear bearing sleeve is connected with the insulating support plate and the insulating liner respectively; and a second heat conduction insulating surface is arranged between the side plane of the end of the rear bearing sleeve and the heat conduction insulating pad, and the other side of the heat conduction insulating pad is provided with a rear end cover.
Further, the runner assembly include the axle, the axle is the ladder shape and middle diameter is big, both ends diameter is little, axle rear end minor diameter department installation rear bearing, the rear bearing compresses tightly the pad through the bearing and compresses tightly the shaft shoulder department at the axle, just rear bearing, bearing compress tightly and set up the cushion between the pad, the bearing compresses tightly the pad through the fix with screw at the axle terminal surface, the first step department installation front bearing of axle front end, the front bearing arranges in pairs, the first step right side of axle is the second step, axle second step department is by interior adjustment pad and the impeller of installing in proper order outside to, the impeller compresses tightly through the axle head nut, the axle head nut adopts threaded connection with the axle.
Furthermore, the pressurizing assembly is arranged on the outer side of the impeller, and is connected with the insulating heat dissipation assembly through a screw and sealed through a sealing ring.
Further, the driving assembly comprises a driving circuit board and a driving shell mounted outside the driving circuit board, and a connector for power supply and signal transmission is mounted outside the driving shell.
Furthermore, the outer part of the front bearing sleeve is in a shape of a lace concave boss, and the inner ring of the outer sleeve of the non-metal flange is in a concave shape.
Furthermore, the metal thin-wall sleeve is a metal thin-wall round sleeve, and the metal thin-wall sleeve is sleeved on the outer side of the shaft.
Furthermore, the first heat conduction insulating surface and the second heat conduction insulating surface are heat conduction insulating material layers.
Furthermore, the surface of the motor heat dissipation shell is designed with annular heat dissipation fins for heat dissipation.
The utility model has the advantages that:
the insulating heat dissipation assembly provided by the utility model adopts the combined shielding sleeve of the non-metal and metal material nested integral injection molding structure, fully utilizes the heat conduction characteristic of metal and the insulating characteristic of non-metal, and simultaneously solves the problems of heat dissipation and insulation. The heat conduction aspect adopts a working medium internal circulation mode in the sleeve, and the heat generated by the motor and the chip in the control assembly can be quickly transferred to the internal circulation working medium through the rear cover to realize heat dissipation by utilizing the fluid circulation and the high heat conduction characteristic of the metal sleeve, so that the high-power cooling liquid pump can be free from external circulation heat dissipation by the heat dissipation structure. Meanwhile, the motor heat dissipation shell is arranged outside the motor stator magnetic steel, and the purpose of auxiliary heat dissipation is achieved through the annular heat dissipation fins on the surface of the motor heat dissipation shell.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram of an insulating heat sink assembly of the present invention;
fig. 3 is a combined structure of the shielding sleeve of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, 2 and 3, the high-power coolant pump and the insulating heat dissipation assembly thereof include a rotating assembly 10, a pressurizing assembly 20, a driving assembly 30 and an insulating heat dissipation assembly 40, wherein the driving assembly 30 and the insulating heat dissipation assembly 40 are connected with the rotating assembly 10, and the pressurizing assembly 20 is installed outside the rotating assembly 10. After the cooling liquid pump is electrified to work, the rotating assembly rotates at a high speed, the working medium is accelerated and then is further pressurized by the pressurizing assembly and then is discharged, and the working medium is driven to flow.
The rotating assembly 10 comprises a shaft 14, the shaft 14 is in a step shape, the middle diameter is large, the diameters of two ends are small, a rear bearing 15 is installed at the small-diameter position of the rear end of the shaft 14, the rear bearing 15 is tightly pressed at the shaft shoulder position of the shaft 14 through a bearing pressing pad 16, an elastic pad 17 is arranged between the rear bearing 15 and the bearing pressing pad 16, the bearing pressing pad 16 is fixed on the end face of the shaft 14 through a screw, a front bearing 13 is installed at a first step position of the front end of the shaft 14, the front bearing 13 is arranged in pairs, a second step is arranged on the right side of the first step of the shaft 14, an adjusting pad 18 and an impeller 12 are sequentially installed at the second step position of the shaft 14 from inside to outside, the impeller 12 is tightly pressed through a shaft end nut 11, and the shaft end nut 11 is in threaded connection with the shaft 14. The rotating assembly is used for applying work to the working medium through high-speed rotation so as to improve the lift of the working medium.
The pressurizing assembly 20 is installed outside the impeller 12, and the pressurizing assembly 20 is connected with the insulating heat-radiating assembly 40 through screws and sealed through a sealing ring. The pressurizing assembly performs speed reduction and pressurization by the work of flowing out of the impeller 12 in the rotating assembly 10, and converts speed energy into pressure energy.
The driving assembly 30 includes a driving circuit board 32 and a driving housing 31 mounted outside the driving circuit board 32, and a connector 33 for power supply and transmission of signals is mounted outside the driving housing 31. The driving assembly generates a rotating magnetic field by controlling the power supply sequence of the stator assembly of the motor so as to drive the rotating assembly to rotate.
The insulating and heat dissipating assembly 40 of the present invention utilizes the heat conducting characteristic of metal and the insulating characteristic of nonmetal sufficiently by using the combined shielding sleeve of the non-metal and metal material nested integral injection molding structure, and solves the problems of heat dissipation and insulation at the same time. The following focuses on the structure and principles of the heat dissipating component of the present invention:
the insulating heat dissipation assembly 40 comprises a motor heat dissipation shell 41, motor stator magnetic steel 42, a shielding sleeve assembly 43, a bearing end cover 44, an insulating support plate 45, an insulating liner 46, a heat conduction insulating pad 47 and a rear end cover 48, wherein one side of the combined shielding sleeve 43 is connected with the bearing end cover 44 through screws, the motor stator magnetic steel 42 is installed on the other side of the combined shielding sleeve 43, and the motor heat dissipation shell 41 is installed on the outer side of the motor stator magnetic steel 42;
the shielding sleeve component 43 comprises a non-metal flange outer sleeve 43-1, a front bearing sleeve 43-2, a metal thin-wall sleeve 43-3 and a rear bearing sleeve 43-4, wherein the non-metal flange outer sleeve 43-1 and the front bearing sleeve 43-2 are integrated through injection molding, the outer part of the front bearing sleeve 43-2 is in a lace outer concave boss shape, and the inner ring of the non-metal flange outer sleeve 43-1 is in an inner concave shape. One end of the metal thin-wall sleeve 43-3 is welded with the front bearing sleeve 43-2, for example, a first welding seam 160 is formed between the metal thin-wall sleeve 43-3 and the front bearing sleeve 43-2 in fig. 3; the other end of the metal thin-wall sleeve 43-3 is welded with the rear bearing sleeve 43-4, for example, a second welding line 180 is arranged between the metal thin-wall sleeve 43-3 and the rear bearing sleeve 43-4 in fig. 3; the metal thin-wall sleeve 43-3 is a metal thin-wall round sleeve, and the metal thin-wall sleeve 43-3 is sleeved outside the shaft 14. The outer surface of the metal thin-wall sleeve 43-3 is uniformly covered with a coating 170 by a special spraying surface treatment mode to form an insulating layer.
The non-metal flange outer sleeve 43-1 and the front end flange are connected with the motor radiating shell 41 through screws; the outer side of the metal thin-wall sleeve 43-3 in the combined shielding sleeve 43 is provided with the motor stator magnetic steel 42, and a first heat conduction insulating surface 120 is arranged between the metal thin-wall sleeve 43-3 and the motor stator magnetic steel 42; the outer circular surface of the rear bearing sleeve 43-4 is respectively connected with an insulating support plate 45 and an insulating liner 46; a second heat conduction insulating surface 150 is arranged between the end side plane of the rear bearing sleeve 43-4 and the heat conduction insulating pad 47, and the other side of the heat conduction insulating pad 47 is provided with a rear end cover 48.
The first insulating surface 110, the second insulating surface 130 and the third insulating surface 140 in the insulating and heat dissipating assembly 40 are completely insulated by the contact between metal parts and non-metal parts. The first heat conduction insulating surface 120 and the second heat conduction insulating surface 150 adopt a heat conduction insulating material layer to realize the heat conduction and insulation function, or adopt a heat conduction insulating pad to realize the heat conduction and insulation function. All the structures realize complete insulation isolation between the interior and the exterior of the sleeve.
Through the structural design, the heat generated by the motor stator magnetic steel 42 and the driving circuit board 32 in the work process passes through the first heat insulation surface 120, the second heat conduction insulation surface 150 can be quickly transmitted to the inside of the combined type shielding sleeve 43, and the heat is taken away through the working medium flowing in the inner cavity, so that the temperature of the motor and the temperature of the controller are effectively controlled, the long-term stable operation of the cooling liquid pump is ensured, and the function of insulating use of the system is simultaneously met by the aid of the internal circulation self-cooling technology based on the problem that the high-power cooling liquid pump can effectively solve the problem of self heat dissipation difficulty.
In summary, the heat conduction aspect of the utility model adopts the internal working medium circulation mode in the sleeve, and by utilizing the fluid circulation and the high heat conduction characteristic of the metal sleeve, the heating of the internal chips of the motor and the control assembly can be quickly transmitted to the internal circulation working medium through the rear cover to realize heat dissipation, and the heat dissipation structure can enable the high-power cooling liquid pump to dissipate heat without depending on external circulation. Meanwhile, the motor heat dissipation shell 41 is installed outside the motor stator magnetic steel 42, and the purpose of auxiliary heat dissipation is achieved through the annular heat dissipation fins on the surface of the motor heat dissipation shell 41.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a high-power coolant pump and insulating radiator unit thereof, characterized in that, includes runner assembly (10), pressure boost subassembly (20), drive assembly (30) and insulating radiator unit (40), drive assembly (30), insulating radiator unit (40) are connected with runner assembly (10), pressure boost subassembly (20) are installed in the runner assembly (10) outside, wherein:
the insulating heat dissipation assembly (40) comprises a motor heat dissipation shell (41), motor stator magnetic steel (42), a shielding sleeve assembly (43), a bearing end cover (44), an insulating support plate (45), an insulating gasket (46), a heat conduction insulating pad (47) and a rear end cover (48), wherein one side of the shielding sleeve assembly (43) is connected with the bearing end cover (44) through a screw, the other side of the shielding sleeve assembly (43) is provided with the motor stator magnetic steel (42), and the motor heat dissipation shell (41) is arranged on the outer side of the motor stator magnetic steel (42);
the shielding sleeve component (43) comprises a non-metal flange outer sleeve (43-1), a front bearing sleeve (43-2), a metal thin-wall sleeve (43-3) and a rear bearing sleeve (43-4), the non-metal flange outer sleeve (43-1) and the front bearing sleeve (43-2) are integrally injection-molded in an injection molding mode, one end of the metal thin-wall sleeve (43-3) is connected with the front bearing sleeve (43-2) in a welding mode, and the other end of the metal thin-wall sleeve (43-3) is connected with the rear bearing sleeve (43-4) in a welding mode;
the nonmetal flange outer sleeve (43-1) and the front end flange are connected with the motor heat dissipation shell (41) through screws; a motor stator magnetic steel (42) is arranged on the outer side of a metal thin-wall sleeve (43-3) in the shielding sleeve component (43), and a first heat conduction insulating surface (120) is arranged between the metal thin-wall sleeve (43-3) and the motor stator magnetic steel (42); the outer circular surface of the rear bearing sleeve (43-4) is respectively connected with an insulating support plate (45) and an insulating gasket (46); and a second heat conduction insulating surface (150) is arranged between the end side plane of the rear bearing sleeve (43-4) and the heat conduction insulating pad (47), and the other side of the heat conduction insulating pad (47) is provided with a rear end cover (48).
2. The high-power coolant pump and the insulating heat dissipation assembly thereof according to claim 1, wherein the rotating assembly (10) includes a shaft (14), the shaft (14) is in a step shape, the middle diameter of the shaft (14) is large, the diameters of the two ends of the shaft are small, a rear bearing (15) is installed at the small diameter position of the rear end of the shaft (14), the rear bearing (15) is pressed at the shaft shoulder position of the shaft (14) through a bearing pressing pad (16), an elastic pad (17) is arranged between the rear bearing (15) and the bearing pressing pad (16), the bearing pressing pad (16) is fixed at the end surface of the shaft (14) through a screw, a front bearing (13) is installed at the first step position of the front end of the shaft (14), the front bearings (13) are arranged in pairs, the right side of the first step of the shaft (14) is provided with a second step, and an adjusting pad (18) and an impeller (12) are sequentially installed at the second step position of the shaft (14) from inside to outside, the impeller (12) is compressed through a shaft end nut (11), and the shaft end nut (11) is in threaded connection with the shaft (14).
3. The high-power coolant pump and the insulating heat dissipation assembly thereof according to claim 1, wherein the pressure boosting assembly (20) is installed outside the impeller (12), and the pressure boosting assembly (20) is connected with the insulating heat dissipation assembly (40) through screws and sealed through a sealing ring.
4. High-power coolant pump and its insulating and heat-dissipating assembly according to claim 1, characterized in that the driving assembly (30) comprises a driving circuit board (32) and a driving housing (31) mounted outside the driving circuit board (32), the driving housing (31) being externally mounted with a connector (33) for power supply and signal transmission.
5. The high-power coolant pump and the insulating heat-dissipating assembly thereof as claimed in claim 1, wherein the exterior of the front bearing sleeve (43-2) is in the shape of a laced external concave boss, and the inner ring of the non-metal flange outer sleeve (43-1) is in the shape of an internal concave.
6. The high-power coolant pump and the insulating heat-dissipating component thereof according to claim 1, wherein the thin-walled metal sleeve (43-3) is a thin-walled metal circular sleeve, and the thin-walled metal sleeve (43-3) is sleeved outside the shaft (14).
7. The high power coolant pump and the insulating heat sink assembly thereof according to claim 1, wherein the first and second heat-conducting and insulating surfaces (120, 150) are layers of heat-conducting and insulating materials.
8. The high-power coolant pump and the insulating heat dissipation assembly thereof according to claim 1, wherein the surface of the motor heat dissipation shell (41) is designed with annular heat dissipation fins for heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220058923.2U CN216904450U (en) | 2022-01-11 | 2022-01-11 | High-power coolant pump and insulating radiating component thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220058923.2U CN216904450U (en) | 2022-01-11 | 2022-01-11 | High-power coolant pump and insulating radiating component thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216904450U true CN216904450U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220058923.2U Active CN216904450U (en) | 2022-01-11 | 2022-01-11 | High-power coolant pump and insulating radiating component thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216904450U (en) |
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2022
- 2022-01-11 CN CN202220058923.2U patent/CN216904450U/en active Active
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