CN220673474U - New energy automobile motor circulation heat abstractor - Google Patents

Abstract

The utility model belongs to the field of new energy automobiles, and particularly discloses a new energy automobile motor circulation heat dissipation device which comprises a shell, a heat conduction outer iron core and a heat conduction inner iron core; the heat-conducting outer iron core is fixed in the shell and fully contacts with the inner surface of the shell, a plurality of flanges are uniformly distributed on the inner peripheral surface of the heat-conducting outer iron core along the circumferential direction, and a clamping groove is formed between every two adjacent flanges; the flanges are uniformly arranged into a plurality of layers along the axial direction of the heat-conducting outer iron core at intervals, and a cooling liquid channel is formed between two adjacent layers; the heat conduction inner iron core is formed by stacking a plurality of inner iron core sheets, and comprises iron core sheet bulges uniformly distributed along the outer circumference and coil winding positions uniformly distributed along the inner circumference, wherein the iron core sheet bulges are clamped with clamping grooves; the number of the clamping grooves is an integer multiple of the protrusions of the iron core sheet; adjacent two inner core sheets are stacked in a staggered manner and respectively put into different clamping grooves. By adopting the heat dissipation device with the structure, a plurality of layers of mutually communicated cooling liquid channels are formed in the motor, so that the heat dissipation performance of the motor is improved.

Description

New energy automobile motor circulation heat abstractor

Technical Field

The utility model belongs to the field of new energy automobiles, and particularly relates to a new energy automobile motor circulation heat dissipation device.

Background

Along with the increasing serious problems of environmental pollution, energy crisis and the like, new energy automobiles are gradually paid attention to and paid attention to, and in recent years, battery technology is continuously improved, and the new energy automobiles are widely popularized. However, the heat dissipation problem of the motor and the battery of the new energy automobile is still focused, and the patent only takes the heat dissipation problem of the motor as a research object.

During operation of the new energy automobile, many components generate great heat, and if not treated, the heat affects the whole automobile system. The motor of the new energy automobile needs a good heat dissipation environment, and if the favorable condition is lacking, the use of the automobile is affected. If the automobile is used for a long time and continuously, when the temperature reaches a certain height, the internal resistance is increased, so that the working efficiency of the motor is reduced, the insulation and lubrication of the inside of the motor are affected, the motor is more seriously damaged, and once the motor is burnt out, the automobile cannot normally run and other system parts are affected.

The chinese patent publication No. CN111224501B discloses a motor assembly, which comprises a motor and a transmission connected to the motor, and further comprises a transmission cooling water channel and a motor cooling water channel, wherein the transmission cooling water channel and the motor cooling water channel are both disposed in a housing of the motor assembly, the motor cooling water channel comprises a first spiral channel and a second spiral channel, the first spiral channel and the second spiral channel are adjacent and extend in parallel along an axial direction of the motor, an inlet end of the first spiral channel is adjacent to an outlet end of the second spiral channel, an outlet end of the first spiral channel is connected to an inlet end of the transmission cooling water channel, and an outlet end of the transmission cooling water channel is connected to an inlet end of the second spiral channel. The electric assembly provided by the utility model is used for solving the problem of uneven heat dissipation of the motor, and proposes the concept of heat dissipation of the motor and the transmission through a cooling medium, however, a cooling water channel is arranged in a motor shell and cannot penetrate into the motor, so that the cooling effect in the motor is poor, and the requirement of rapid circulation heat dissipation of the motor still cannot be met.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a new energy automobile motor circulation heat dissipation device, which aims to solve or improve at least one of the technical problems.

In order to achieve the aim, the utility model provides a new energy automobile motor circulation heat dissipation device, which comprises a shell, a heat conduction outer iron core and a heat conduction inner iron core; the shell comprises a liquid inlet and a liquid outlet; the heat conduction outer iron core is fixed in the shell and fully contacts with the inner surface of the shell, a plurality of flanges extending towards the center of the heat conduction outer iron core are uniformly distributed on the inner peripheral surface of the heat conduction outer iron core along the circumferential direction, and clamping grooves are formed between two adjacent flanges; the flanges are uniformly arranged in a plurality of layers at intervals along the axial direction of the heat conduction outer iron core, a cooling liquid channel is formed between two adjacent layers of flanges, and two ends of the cooling liquid channel are respectively connected with the liquid inlet and the liquid outlet; the heat conduction inner iron core is formed by stacking a plurality of inner iron core sheets, the inner iron core sheets comprise iron core sheet bulges uniformly distributed along the circumferential direction of the outer peripheral surface and coil winding positions uniformly distributed along the circumferential direction of the inner peripheral surface, coils are wound on the coil winding positions, and the iron core sheet bulges are in clamping fit with the clamping grooves; the number of the clamping grooves is an integral multiple of the number of the iron chip bulges; adjacent two inner iron core sheets are stacked in a staggered mode and are respectively placed into different clamping grooves.

Preferably, the number of the clamping grooves on the single heat-conducting outer iron core is twice that of the iron core sheet bulges on the single inner iron core sheet.

Preferably, the number of clamping grooves on each heat conducting outer iron core is 12, and the number of iron core sheet protrusions on each inner iron core sheet is 6.

Preferably, the above 6 slots are respectively spaced apart from each other to form one group, and the other 6 slots are respectively spaced apart from each other to form another group, and two adjacent inner core pieces are respectively placed into the slots of the different groups and are alternately stacked.

Preferably, the heat conducting outer iron core is formed by alternately laminating a plurality of first heat conducting fins and second heat conducting fins, a plurality of short flanges are uniformly distributed on the inner peripheral surface of the first heat conducting fins along the circumferential direction, the same number of high flanges are uniformly distributed on the inner peripheral surface of the second heat conducting fins along the circumferential direction, and the height of the Gao Tuyuan protrusions is larger than that of the short flanges.

Preferably, the thickness of the inner core piece, the first heat conductive sheet, and the second heat conductive sheet is the same.

Preferably, a plurality of heat radiating fins are arranged on an outer peripheral surface of the casing.

Preferably, a plurality of connecting column ribs penetrating through the axial direction are outwards protruded on the inner peripheral surface of the shell, connecting column grooves matched with the connecting column ribs are inwards recessed on the outer peripheral surface of the heat conduction outer iron core, and shell connecting columns are inserted into insertion holes formed by splicing the connecting column ribs and the connecting column grooves.

Preferably, mounting lugs are arranged on the outer peripheral surfaces of the two ends of the shell, and fastening bolts are connected between the mounting lugs and used for forming assembly and fixation of the inner heat-conducting outer iron core and the inner heat-conducting iron core from the two ends of the shell.

Compared with the prior art, the novel energy automobile motor circulation heat dissipation device has the following technical effects and advantages: due to the adoption of the technical scheme, the cooling liquid channels which are communicated with each other in multiple layers are formed between the heat conduction outer iron core and the heat conduction inner iron core, so that the channels through which cooling medium can circulate are formed inside the motor, the stator iron core is cooled, the internal heat dissipation capacity of the stator iron core is improved, and the heat dissipation performance of the motor is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application. In the drawings:

FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;

FIG. 2 is a schematic structural diagram of embodiment 1 of the present utility model;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 4 is a schematic structural diagram of embodiment 3 of the present utility model;

fig. 5 is a schematic structural diagram of 201 in embodiment 1 of the present utility model;

FIG. 6 is a schematic diagram of a structure of 202 in embodiment 1 of the present utility model;

FIG. 7 is a combined state diagram of 201 and 202 in embodiment 1 of the present utility model;

FIG. 8 is a schematic diagram of the structure of a circuit board 301 in embodiment 1 of the present utility model;

fig. 9 is a schematic structural view of embodiment 2 of the present utility model;

fig. 10 is a cut-away view of fig. 9.

Wherein: 1. a housing; 2. a thermally conductive outer core; 3. a thermally conductive inner core; 4. a rotor mounting cavity; 5. a housing connection post; 6. a cooling liquid passage; 101. a heat sink; 102. mounting lugs; 103. a connecting column rib; 104. a liquid inlet; 105. a liquid outlet; 201. a first heat conductive sheet; 202. a second heat conductive sheet; 203. a clamping groove; 203a, a first clamping groove; 203b, a second clamping groove; 204. a channel inlet; 205. a connecting column groove; 20101. a short flange; 20201. a high flange; 301. an inner iron core piece; 302. the iron core sheet is convex; 303. and (5) winding the coil.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The new energy automobile motor circulation heat dissipation device of the present utility model is described below with reference to fig. 1 to 10.

Example 1:

referring to fig. 1 to 8, fig. 1 to 8 show a schematic structural diagram of a new energy automobile motor circulation heat dissipation device provided by the utility model, the heat dissipation device is arranged inside a motor, and specifically comprises a casing 1, a stator core assembled in the casing 1, and a cooling liquid channel 6 positioned inside the stator core, as shown in fig. 1, the stator core comprises a heat conducting outer core 2 and a heat conducting inner core 3, the heat conducting inner core 3 is positioned in the heat conducting outer core 2, a cooling liquid channel 6 for cooling medium circulation is assembled between the heat conducting inner core 3 and the heat conducting outer core 2, the heat conducting outer core 2 is assembled and connected with the casing 1, the heat conducting outer core 2 is used as a carrier for coil winding, heat generated by the coil is transferred to the cooling liquid channel 6, the cooling liquid channel 6 is distributed outside the whole heat conducting outer core 2, and cooling medium circulates inside.

Specifically, as shown in fig. 3, 5 and 6, in the present embodiment, the heat conductive outer core 2 is formed by stacking a plurality of heat conductive sheets of two types, specifically, a plurality of first heat conductive sheets 201 and second heat conductive sheets 202 of a first heat conductive sheet 201 and a second heat conductive sheet 202 are stacked and alternately arranged, the first heat conductive sheet 201 and the second heat conductive sheet 202 have different structures, and after being stacked, a gap channel, that is, a coolant channel, can be formed; the first heat conducting fin 201 and the second heat conducting fin 202 are of annular sheet structures, have the same outer diameter, are uniformly distributed with 3 connecting column grooves 205 around the periphery and are used for inserting the shell connecting column 5, and form stable assembly connection with the shell 1; the inner peripheral surface of the first heat conductive sheet 201 is protruded with 12 short flanges 20101, a clamping groove is formed between two adjacent short flanges 20101, the inner peripheral surface of the second heat conductive sheet 202 is protruded with 12 high flanges 20201, and a clamping groove is formed between two adjacent high flanges 20201, it is understood that the height of the protrusion of the high flange 20201 is larger than that of the protrusion of the short flanges 20101, the number of flanges arranged on the inner peripheral surfaces of the first heat conductive sheet 201 and the second heat conductive sheet 202 is the same, the lengths of the flanges are equal, and the positions of the clamping grooves are overlapped after the two flanges are overlapped; further, the number of short flanges 20101 and tall flanges 20201 may be any even number greater than 3; as shown in fig. 3, which is a schematic view of a stacked plurality of first heat conductive sheets 201 and second heat conductive sheets 202, since the short flange 20101 of the first heat conductive sheet 201 protrudes to a lower height than the tall flange 20201 of the second heat conductive sheet 202, after stacking, the tall flange 20201 protrudes to a certain length from the short flange 20101, that is, the short flange 20101 forms a recess of a certain length inward, and then, after stacking, the plurality of heat conductive sheets, the position of the recess forms a cooling liquid channel 6 through which a cooling medium passes; the concave position is a horizontal channel, the overlapping position of the clamping grooves forms a channel in the vertical direction, and the flanges are even, so that the number of the clamping grooves is even, and the outer circumferential surface of the heat conducting inner iron core 3 is provided with iron core sheet protrusions 302 with half the number of the clamping grooves, so that half of the clamping grooves are free during assembly, and the free clamping grooves provide a communication channel in the vertical direction for the horizontal cooling liquid channels 6.

Specifically, as shown in fig. 4, the heat-conducting inner core 3 is formed by stacking a plurality of inner core pieces 301, where each inner core piece 301 includes core piece protrusions 302 uniformly circumferentially distributed along an outer peripheral surface, and coil winding positions 303 uniformly circumferentially distributed along an inner peripheral surface, and coils (not shown in the drawing) are wound on the coil winding positions 303, and the winding of the coils is performed by conventional means in the prior art, which are not limited and described herein. The number of the core piece bulges 302 protruding outside the inner core piece 301 is 6, which is one half of the number of the clamping grooves on the inner peripheral surface of the heat conducting outer core 2, when the inner core pieces 301 are stacked, two adjacent inner core pieces 301 are stacked in a staggered manner, namely, one inner core piece 301 is placed in 6 clamping grooves, the next adjacent inner core piece 301 is placed in the other 6 clamping grooves, for convenience of understanding, the 6 clamping grooves of the first group are called as first clamping grooves 203a, the 6 first clamping grooves 203a of the group are not adjacent, and the other 6 second clamping grooves 203b of the group are arranged at intervals, as shown in fig. 3; since the inner core sheets 301 are alternately stacked in the radial direction, each layer has 6 free slots, the free 6 slots are communicated with the cooling liquid channels 6 of the upper layer and the lower layer, and the free slots of two adjacent layers are respectively the first slot 203a and the second slot 203b, and the two groups of slots alternately appear, so that the outer peripheral surface of the whole heat conducting inner core 3 is penetrated, and a complete liquid cooling heat dissipation channel is formed.

Further, the thicknesses of the inner core piece 301, the first heat conductive piece 201 and the second heat conductive piece 202 are all equal, or, the thickness of the inner core piece 301 is the sum of the thicknesses of the first heat conductive piece 201 and the second heat conductive piece 202, in the first case, the thicknesses of the inner core piece 301, the first heat conductive piece 201 and the second heat conductive piece 202 are all equal, a channel in the vertical direction is left between each layer of the cooling liquid channel 6, the channel in the vertical direction is a clamping groove which does not form a clamping connection with the core piece protrusion 302, in the second case, the thickness of the inner core piece 301 is the sum of the thicknesses of the first heat conductive piece 201 and the second heat conductive piece 202, and one inner core piece 301 and the first heat conductive piece 201 and the second heat conductive piece 202 form a matching at the same time, that is, each two layers of the cooling liquid channels 6 share one channel in the vertical direction.

Specifically, the casing 1 is a casing of a motor, is of a cylindrical structure, is fixedly connected with the heat conducting outer iron core 2, is provided with a plurality of sealing rings at two end parts, is provided with a liquid inlet 104 and a liquid outlet 105 which enter the cooling liquid channel 6 on the casing 1, and the liquid inlet 104 and the liquid outlet 105 are respectively connected with two ends of the cooling liquid channel 6 and are connected with a cooling system outside the motor through pipelines, so that a cooling medium can form a circulating flow. The outer peripheral surface of the shell 1 is provided with mounting lugs 102 for forming assembly and fixation on the shell 1 and the stator core inside in the axial direction, in particular to a plurality of pairs of mutually matched mounting lugs 102 are arranged on the outer peripheral surfaces of the two ends of the shell 1, and a fastening bolt is connected between each pair of mounting lugs 102 for forming assembly and fixation on the heat-conducting outer core 2 and the heat-conducting inner core 3 inside from the two ends of the shell 1; the outer peripheral surface of the shell 1 is further provided with a plurality of cooling fins 101 so as to accelerate self heat dissipation of the motor, three connecting column ribs 103 are uniformly distributed on the shell 1 along the circumferential direction, the connecting column ribs 103 are half circles of the shell 1 protruding outwards along the radial direction, the axial length of the connecting column ribs 103 is the same as that of the shell 1, and the connecting column ribs are matched with the connecting column grooves 205 on the heat conducting outer iron core 2 to form a complete round jack for inserting the shell connecting column 5 to form radial limit.

Correspondingly, the first heat conductive sheet 201 and the second heat conductive sheet 202, which correspond to the liquid inlet 104 and the liquid outlet 105, have side openings that overlap with the liquid inlet 104 and the liquid outlet 105 and penetrate to the cooling liquid passage 6.

The outer peripheral surfaces of the first heat conducting fin 201 and the second heat conducting fin 202 are fully contacted with the inner surface of the shell 1 to form a solid heat conducting channel, and heat generated during coil working can be conducted to the shell 1 through the first heat conducting fin 201 and the second heat conducting fin 202 after conduction and then rapidly emitted by the heat radiating fin 101 on the outer peripheral surface of the shell 1.

It should be understood that 12 core piece protrusions 302 are uniformly circumferentially distributed along the outer circumferential surface of the outermost inner core piece 301, and are fitted with sealing washers so as to form a seal with both ends of the heat conductive outer core 2, and in addition, the heat conductive outer core 2 is also in sealing contact with the case 1.

Example 2:

referring to fig. 9 and 10, fig. 9 and 10 show another schematic structural diagram of the new energy automobile motor circulation heat dissipating device provided by the present utility model, which is basically the same as the structure of embodiment 1, except that the heat conducting outer core 2 is an integrally formed structure, and the inner peripheral surface thereof has the effect of laminating the first heat conducting strip 201 and the second heat conducting strip 202 as in embodiment 1, and has the cooling liquid channel 6, and has the first clamping groove 203a and the second clamping groove 203b, and the assembly manner of the heat conducting outer core 2 and the inner core strip 301 in this embodiment is the same as that of embodiment 1, and will not be repeated herein. Compared with the embodiment 1, the integrally formed heat-conducting outer iron core 2 has little difference in heat-conducting performance, but has better structural strength, better sealing performance and easier assembly.

The working principle of the embodiment of the utility model is as follows:

the utility model combines liquid cooling heat dissipation, air cooling heat dissipation and self heat conduction heat dissipation, wherein the air cooling heat dissipation is arranged at the end part of a rotor, the rotor is assembled with a stator core in the utility model in a matched way, fans which synchronously rotate are arranged at the two ends of the rotor, and heat generated by the heat conduction inner core 3 and the rotor is taken away by wind flowing through a gap between the two; liquid cooling heat dissipation is that the cooling liquid channel 6 in the embodiment, part of heat generated by the coil is blown away by air cooling, the other part of heat is conducted to the cooling liquid channel 6 through the heat conducting inner iron core 3, and the heat is conducted out through a heat dissipation medium circularly flowing through the cooling liquid channel 6; the self heat conduction and dissipation means that the first heat conduction sheet 201 and the second heat conduction sheet 202 are in surface contact with the casing 1, and heat is rapidly conducted to the heat dissipation sheet 101 of the casing 1 by the self rapid heat conduction property, so that part of the heat is dissipated by the self. Relatively, liquid cooling heat dissipation is more effective, can provide better faster heat dissipation passageway to through outside cooling system and circulation system, realized the purpose of circulative cooling.

The technical effects of the embodiments of the present utility model are detailed in the content of the specification, and are not described herein.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (9)

1. The utility model provides a new energy automobile motor circulation heat abstractor which characterized in that includes:

the device comprises a shell (1), wherein the shell (1) comprises a liquid inlet (104) and a liquid outlet (105);

the heat conduction outer iron core (2), the heat conduction outer iron core (2) is fixed in the shell (1) and is fully contacted with the inner surface of the shell (1), a plurality of flanges extending towards the center of the heat conduction outer iron core (2) are uniformly distributed on the inner peripheral surface of the heat conduction outer iron core (2) along the circumferential direction, and a clamping groove (203) is formed between every two adjacent flanges; the flanges are uniformly arranged in a plurality of layers at intervals along the axial direction of the heat conduction outer iron core (2), a cooling liquid channel (6) is formed between two adjacent layers of flanges, and two ends of the cooling liquid channel (6) are respectively connected with the liquid inlet (104) and the liquid outlet (105);

the heat conduction inner iron core (3), the heat conduction inner iron core (3) is formed by stacking a plurality of inner iron core pieces (301), the inner iron core pieces (301) comprise iron core piece bulges (302) which are circumferentially and uniformly distributed along the outer peripheral surface, and coil winding positions (303) which are circumferentially and uniformly distributed along the inner peripheral surface, coils are wound on the coil winding positions (303), and the iron core piece bulges (302) are in clamping fit with the clamping grooves (203);

the number of the clamping grooves (203) is an integer multiple of the number of the core piece bulges (302);

adjacent two inner iron chips (301) are staggered and stacked and respectively placed into different clamping grooves (203).

2. The new energy automobile motor cycle heat dissipating device according to claim 1, wherein the number of the clamping grooves (203) on the single heat conducting outer core (2) is twice the number of the core sheet protrusions (302) on the single inner core sheet (301).

3. The new energy automobile motor cycle heat dissipating device according to claim 2, wherein the number of the clamping grooves (203) on each of the heat conducting outer cores (2) is 12, and the number of the core sheet protrusions (302) on each of the inner core sheets (301) is 6.

4. A new energy automobile motor circulation radiator according to claim 3, wherein 6 of the slots (203) are respectively spaced apart to form one group, the other 6 of the slots (203) are formed to form another group, and two adjacent inner iron chips (301) are respectively placed in the slots (203) of the different groups and are alternately stacked.

5. The new energy automobile motor circulation heat abstractor according to claim 1, wherein the heat conducting outer core (2) is formed by alternately laminating a plurality of first heat conducting fins (201) and second heat conducting fins (202), a plurality of short flanges (20101) are uniformly distributed on the inner peripheral surface of the first heat conducting fins (201) along the circumferential direction, the same number of high flanges (20201) are uniformly distributed on the inner peripheral surface of the second heat conducting fins (202) along the circumferential direction, and the height of the protrusions of Gao Tuyuan (20201) is larger than the height of the protrusions of the short flanges (20101).

6. The heat dissipating device for a new energy vehicle according to claim 5, wherein the thickness of the inner core sheet (301), the first heat conductive sheet (201), and the second heat conductive sheet (202) are the same.

7. The new energy automobile motor cycle heat dissipating device according to claim 1, wherein a plurality of heat dissipating fins (101) are arranged on the outer peripheral surface of the casing (1).

8. The new energy automobile motor circulation heat abstractor according to claim 1, wherein a plurality of connecting column ribs (103) penetrating through the axial direction are outwards protruded on the inner peripheral surface of the casing (1), connecting column grooves (205) matched with the connecting column ribs (103) are inwards recessed on the outer peripheral surface of the heat conducting outer iron core (2), and shell connecting columns (5) are inserted into insertion holes formed by splicing the connecting column ribs (103) and the connecting column grooves (205).

9. The new energy automobile motor circulation heat abstractor according to claim 1, wherein, the outer peripheral surface at two ends of the casing (1) is provided with mounting lugs (102), and fastening bolts are connected between the mounting lugs (102) for forming assembly fixation from the two ends of the casing (1) to the inner heat conducting outer iron core (2) and the heat conducting inner iron core (3).