CN214069685U - Cooling channel structure and stator assembly - Google Patents

Abstract

The utility model provides a cooling channel structure, including cooling inlet, cooling outlet and communicate in the cooling inlet with passageway between the cooling outlet, be provided with a plurality of shunts in the passageway, it is a plurality of shunt along the circulation direction interval arrangement of cooling medium in the passageway, adjacent two be provided with a choked piece between the shunt, be used for reducing the choked piece with hydraulic diameter between the shunt promotes heat exchange efficiency, utilizes shunt shunts cooling medium, utilizes to be Y shape the choked piece and with the shunt cooperation has reduced hydraulic diameter, has increased fluidic torrent degree, and then has promoted heat exchange efficiency.

Description

Cooling channel structure and stator assembly

Technical Field

The utility model relates to a heat transfer field especially relates to a cooling channel structure and stator module.

Background

With the development of industries such as new energy automobiles, the performance requirements on the motor are higher and higher, and particularly, the power density and the torque density of the motor are required to be greatly improved. The key for restricting the promotion of the power density and the torque density of the motor is the heat dissipation capability of the motor, once the heat dissipation is insufficient, the temperature rise inside the motor is high, the insulating layer is damaged, the permanent magnet is demagnetized, and the like, so that the working performance of the motor is influenced.

The main heating components of the motor are a stator core and the like, and the existing cooling mode is to arrange a water channel on the shell to exchange heat for the heating components so as to achieve the cooling effect. But the water conservancy diameter of current water course is great, and the torrent degree is lower relatively for the heat transfer effect is lower, has the not enough risk of heat dissipation.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an effectively promote heat exchange efficiency's cooling channel structure and stator module.

A cooling channel structure comprises a cooling inlet, a cooling outlet and a channel communicated between the cooling inlet and the cooling outlet, wherein a plurality of branch parts are arranged in the channel, the branch parts are arranged at intervals along the circulation direction of a cooling medium in the channel, and a flow blocking part is arranged between every two adjacent branch parts and used for reducing the hydraulic diameter between the flow blocking part and the branch parts to improve the heat exchange efficiency.

Optionally, the spoiler comprises two wings between which the vortex portion is formed.

Optionally, two adjacent chokes are connected to the inner and outer side walls of the channel at intervals.

Alternatively, the vortex portions of two adjacent spoilers are arranged opposite to each other.

Optionally, there is a gap between each of the branches and the inner and outer side walls of the channel.

Optionally, the shunt is connected to the channel outer side wall.

Optionally, a flow dividing member and a flow converging member are further disposed in the channel, the flow dividing member being opposite the cooling inlet, and the flow converging member being opposite the cooling outlet.

A stator assembly comprises a shell and an iron core, wherein the shell is provided with the cooling channel structure of the embodiment, and the iron core is fixed on the cooling channel structure.

Optionally, a barrier is further included, the barrier being mounted between the cooling passage structure and the core.

Optionally, one end of the shunt part, which is far away from the outer side wall of the channel, is provided with a mounting hole for fixing the iron core.

Compared with the prior art, the technical scheme has the following advantages:

the branch parts are used for dividing the cooling medium, the Y-shaped flow blocking parts are used for being matched with the branch parts, the hydraulic diameter is reduced, the turbulence degree of fluid is increased, and the heat exchange efficiency is improved.

The present invention will be further described with reference to the accompanying drawings and examples.

Drawings

Fig. 1 shows a schematic structural view of the cooling channel structure of the present invention;

fig. 2 shows a schematic view of the structure of the spoiler according to the invention;

figure 3 shows an exploded view of the stator assembly of the present invention;

fig. 4 shows a schematic structural view of the stator assembly of the present invention;

figure 5 shows a partial cross-sectional view of a stator assembly of the present invention;

fig. 6 shows a schematic structural view of the barrier of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1, the cooling channel structure 100 includes a cooling inlet 111, a cooling outlet 112, and a channel 110 communicating between the cooling inlet 111 and the cooling outlet 112, a plurality of branches 120a and 120b are disposed in the channel 110, wherein the plurality of branches 120a and 120b are arranged at intervals along a flow direction of a cooling medium in the channel 110, and a flow blocking member 130a and 130b is disposed between two adjacent branches 120a and 120b, and is used for reducing a hydraulic diameter between the flow blocking member 130a and 130b and the branches 120a and 120b to improve heat exchange efficiency.

The cooling medium may be oil or cooling water, and the cooling medium may enter the channel 110 from the cooling inlet 111, be influenced by the branch pieces 120a and 120b to be branched, and be influenced by the flow blocking piece 130a to reduce the hydraulic diameter, increase the turbulence degree of the fluid, and further improve the heat exchange efficiency. The member to be cooled may be connected to the cooling channel structure 100, and the cooling channel structure 100 may be used to perform a cooling operation on the member to be cooled, which may be a stator, but is not limited thereto.

As shown in fig. 2, the flow blocking parts 130a and 130b include two wing parts 131, and a vortex part 132 is formed between the two wing parts 131, so that the cooling medium passes through the wing parts 131 and forms a vortex at the vortex part 132, which is beneficial to improving convection of the cooling medium, and thus, the heat exchange capability is improved.

Specifically, the two wing portions 131 are connected and arranged in a V shape, so that the cooling medium flows through the vortex portion 132 along the profile of the wing portion 131 and forms a vortex by being choked by the two wing portions 131, and an included angle between the two wing portions 131 may be 15 to 120 °, and is preferably 30 °, 45 °, or 90 °.

The other two wings 131 are V-shaped, so that the gap between the wing 131 and the adjacent branches 120a and 120b is changed, especially the gap between the free end of the wing 131 and the branches 120a and 120b is reduced, the hydraulic diameter is reduced, the degree of turbulence of the fluid is increased, and the heat convection and heat exchange capability of the fluid is improved. The free end of the wing part 131 means that the wing part 131 is connected to the opposite end of the other wing part 131.

With continued reference to fig. 2, the wing 131 is arc-shaped and the free end of the wing 131 is rounded, thereby allowing the cooling medium to flow along the contour of the wing 131 and to form a vortex. The junction of the other two wings 131 may be rounded. Of course, the wing part 131 may have a straight shape, and the free end thereof may have a circular shape.

As shown in fig. 1, two neighboring spoilers 130a, 130b are disposed opposite to each other. Specifically, the choke piece 130a and the choke piece 130b are adjacent to each other, wherein the vortex portion 132 of the choke piece 130a is disposed inward, and the vortex portion 132 of the choke piece 130b is disposed outward, so that the cooling medium passes through the choke piece 130a and the choke piece 130b in an S-shape, and forms a vortex in the vortex portion 132, which not only increases the area of the passage 110 to increase the cooling efficiency, but also staggers the adjacent vortex portions 13 to avoid mutual influence and failure.

As shown in FIG. 1, the channel 110 includes an inner sidewall 1101 and an outer sidewall 1102, the inner sidewall 1101 extending from the cooling inlet 111 to the cooling outlet 112, the outer sidewall 1102 extending from the cooling inlet 111 to the cooling outlet 112. Two neighboring chokes 130a, 130b may be disposed on the inner sidewall 1101 and the outer sidewall 1102 at intervals.

Specifically, the choke 130a may be connected to the inner sidewall 1101, and the choke 130b may be connected to the outer sidewall 1102 such that the swirl portions 132 of the two are opposite to each other.

More specifically, referring to fig. 2, the spoiler 130a, 130b further includes a connecting portion 133, and the connecting portion 133 connects the two wings 131 for connecting the inner sidewall 1101 and the outer sidewall 1102. Wherein the connection between the connecting portion 133 and the wing portion 131 may be in a circular arc transition, and the connection between the connecting portion 133 and the inner sidewall 1101 and the outer sidewall 1102 are in a circular arc transition.

Taking the choke piece 130a as an example, the connecting portion 133 is connected to the inner sidewall 1101 to block the cooling medium from passing between the choke piece 130a and the inner sidewall 1101, and further guide the cooling medium to the vortex portion 132 to form a vortex. It should be noted that, a gap exists between the wing portion 131 and the outer sidewall 1102, so that the cooling medium passes through and is divided by the branches 120a and 120b between the chokes 130a and 130b, and then flows to the chokes 130b to form a vortex again, thereby further improving the heat exchange efficiency.

The connecting portion 133 may have a straight shape and be connected to a connection portion of the two wing portions 131, so that the spoilers 130a, 130b have a Y shape. Wherein the spoilers 130a, 130b are symmetrical structures.

As shown in fig. 1, the branches 120a and 120b are spaced apart from the chokes 130a and 130b, and the branches 120a and 120b function to divide the cooling medium.

As shown in fig. 1 and 2, the splitter 120b may have a gap with the inner sidewall 1101 and the outer sidewall 1102, respectively, and may have a straight shape. It may be parallel to the connection portion 133 and located at a middle position of two adjacent connection portions 133. Because the two wing parts 131 are V-shaped, the gap between the free ends of the wing parts 131 and the branch parts 120b is smaller than the gap between the connecting parts 133 and the connecting parts 133, so that the flow of the cooling medium is changed, and the purpose of improving the heat convection capability is achieved.

It is noted that both ends of the branch member 120b are rounded and extend beyond the wing 131, and the gaps between the ends of the branch member 120b and the inner and outer sidewalls 1101 and 1102, respectively, may be uniform and smaller than the gap between the free end of the wing 131 and the opposite inner or outer sidewall 1101 or 1102. Taking the flow blocking element 130a as an example, the end of the shunt element 120b facing the outer sidewall 1102 is located between the outer sidewall 1102 and the free end of the wing 131, so as to prevent the length of the shunt element 120b from being too short to affect the formation of the shunt and vortex.

The shunt member 120a may be coupled to the outer sidewall 1102 to block the passage of the cooling medium between the shunt member 120a and the outer sidewall 1102, thereby allowing the cooling mechanism to pass between the inner sidewall 1101 and the shunt member 120 a.

Specifically, the free end of the shunt member 120a away from the outer sidewall 1102 may be circular and have a diameter larger than the width of the shunt member 120 connected to the end of the outer sidewall 1102, wherein the shunt member 120a connected to the end of the outer sidewall 1102 may be in a straight line shape and have a circular arc transition with the outer sidewall 1102.

More specifically, since the two wings 131 are V-shaped and the branches 120a are free ends, the hydraulic diameter of the cooling medium passing between the wings 131 and the branches 120 is reduced, the turbulence degree of the fluid is increased, and the heat convection capability of the fluid is improved.

With continued reference to fig. 1, the free end of the branch component 120a is provided with a mounting hole 121, and a component to be cooled can be fixed, for example, a bolt is used to pass through the mounting hole 121 and connect with the component to be cooled, so that the component to be cooled is fixed on the cooling channel structure 100, and the mounting structure is reasonably utilized, so that the structure is more compact and novel.

As shown in fig. 1, two of the shunts 120b, two of the shunts 130a and one of the shunts 130b are located between two of the shunts 120a, wherein the resistor 130b is located at the middle position of the two shunts 120a, the two of the shunts 120b are located at both sides of the resistor 130b, each of the shunts 120b is located between the resistor 130b and the resistor 130a, and each of the resistors 130a is located between the shunts 120b and the shunts 120 a.

It can be seen that the present invention utilizes the two structures of the shunt part 120a and 120b to shunt, and certainly, one of the structures can be used to shunt, which is not limited herein.

As shown in fig. 1, the channel 110 has a C-shape, and two adjacent and opposite ends thereof are separated by a partition 140, so that the cooling medium enters from the cooling inlet 111, passes through the channel in a circulating direction, and is discharged from the cooling outlet 112. The channel 110 may also take other shapes, such as S-shaped, W-shaped, in-line shaped, and the like.

The cooling inlet 111 and the cooling outlet 112 are both adjacent to the partition 140, and may be located on the outer sidewall 1102 and/or the inner sidewall 1101, and preferably, the cooling inlet 111 and the cooling outlet 112 are both opened on the outer sidewall 1102.

As shown in fig. 1, a flow dividing member 150 and a flow converging member 160 are further disposed in the passage 110, wherein the flow dividing member 150 is opposite to the cooling inlet 111 to divide the cooling medium introduced from the cooling inlet 111, and the flow converging member 160 is opposite to the cooling outlet 112 to merge the divided cooling medium and discharge it from the cooling outlet 112. Gaps are respectively reserved between the flow dividing piece 150 and the outer side wall 1102 and between the flow converging piece 160 and the inner side wall 1101.

Specifically, the dividing member 150 is located between the dividing member 140 and the adjacent dividing member 120a, and the merging member 160 is located between the dividing member 140 and the adjacent dividing member 120 a.

More specifically, the diverging and converging members 150 and 160 have the same shape as the chokes 130a and 130b, respectively, and are Y-shaped. The V-shaped ends of which face the inner side wall 1101, and the in-line ends of which face the cooling inlet 111 or the cooling outlet 112 provided on the outer side wall 1102.

The passage 110 has a C-shape in which the branching member 120b, the connecting portion 133 of the flow blocking members 130a, 130b, the in-line end of the branching member 120a, and the in-line end of the dividing member 140 extend in the radial direction thereof, and the in-line ends of the branching member 150 and the merging member 160 may be parallel to the dividing member 140, but may be inclined, as a matter of course, with reference to fig. 1.

The thicknesses of the branches 120a, 120b, the flow stoppers 130a, 130b, the partitions 140, the branches 150, and the confluence 160 are identical to the depth of the channel 110, so that the to-be-cooled member mounted on the channel 110 can be in contact with the branches 120a, 120b, the flow stoppers 130a, 130b, the partitions 140, the branches 150, and the confluence 160.

In summary, the flow-blocking elements 130a in the Y shape are used to cooperate with the flow-dividing elements 120a and 120b to reduce the hydraulic diameter and increase the turbulence degree of the fluid, thereby improving the heat exchange efficiency.

As shown in fig. 3 to 5, the present invention further provides a stator assembly, which includes a housing 200 and an iron core 300, the housing 200 is provided with the cooling channel structure 100 of the above embodiment, the iron core 300 is sleeved on the housing 200 and fixed on the cooling channel structure 100, so as to cool the iron core 300 through the cooling channel structure 100. Since the stator assembly employs the cooling passage structure 100 of the above-described embodiment, the stator assembly has the advantages brought by the cooling passage structure 100, which are referred to in the above-described embodiment.

The iron core 300 may be fixed to the cooling passage structure 100 by a bolt 400, and specifically, referring to fig. 1, 3 and 5, a threaded hole 310 is opened in the iron core 300, and the bolt 400 is screwed with the threaded hole 310 through the mounting hole 121 to fix the iron core 300.

As shown in fig. 6, the stator assembly further includes a barrier 500, and the barrier 500 is installed between the cooling passage structure 100 and the core 300 to block a cooling medium from the core 300. The blocking member 500 may be made of a material with good heat transfer.

The blocking member 500 may be a pipe, the shape of which is adapted to the cooling channel structure 100, and the blocking member 500 is clamped in the cooling channel structure 100, and includes an inlet pipe 510 and an outlet pipe 520, the inlet pipe 510 is disposed opposite to the cooling inlet 111, the outlet pipe 520 is disposed corresponding to the cooling outlet 112, and the blocking member 500 is provided with a through hole 530 through which the branch members 120a and 120b, the choke members 130a and 130b, the branch member 150, and the confluence member 160 pass, respectively. Of course, the barrier 500 may be a plate fixed to the cooling passage structure 100.

Besides, the technical personnel in the field can also be according to actual conditions right shunt part 120a, 120b, choked flow piece 130a, 130b, the shape, structure and the material of shunt part 150 and confluence part 160 change, as long as the utility model discloses on the basis of the above-mentioned disclosure, adopted with the utility model discloses the same or similar technical scheme, solved with the utility model discloses the same or similar technical problem to reached with the utility model discloses the same or similar technological effect all belongs to within the protection scope, the utility model discloses a specific implementation mode does not use this as the limit.

That is to say, as long as on the above-mentioned basis of disclosing of the utility model, adopted with the same or similar technical scheme of the utility model, solved with the same or similar technical problem of the utility model to reached with the same or similar technological effect of the utility model, all belong to within the protection scope, the utility model discloses a concrete implementation does not use this as the limit.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims (10)

1. A cooling channel structure is characterized by comprising a cooling inlet, a cooling outlet and a channel communicated between the cooling inlet and the cooling outlet, wherein a plurality of branch parts are arranged in the channel, the branch parts are arranged at intervals along the circulation direction of a cooling medium in the channel, and a flow blocking part is arranged between every two adjacent branch parts and used for reducing the hydraulic diameter between the flow blocking part and the branch parts to improve the heat exchange efficiency.

2. The cooling passage structure according to claim 1, wherein the flow blocking member includes two wing portions between which the vortex portion is formed.

3. The cooling passage structure of claim 2, wherein two adjacent flow blocking members are connected to the inner and outer side walls of the passage at intervals.

4. The cooling passage structure according to claim 3, wherein the swirl portions of adjacent two of the spoilers are disposed to be opposed to each other.

5. The cooling channel structure of claim 1, wherein a gap exists between each of the branching members and the inner and outer side walls of the channel.

6. The cooling channel structure of claim 1 wherein said splitter is connected to said channel outer sidewall.

7. The cooling passage structure of claim 1, wherein a flow dividing piece and a flow converging piece are further provided in the passage, the flow dividing piece being opposed to the cooling inlet, and the flow converging piece being opposed to the cooling outlet.

8. A stator assembly comprising a housing and a core, wherein the housing is provided with a cooling channel structure according to any of claims 1 to 7, and the core is fixed to the cooling channel structure.

9. The stator assembly of claim 8 further comprising a barrier mounted between the cooling passage structure and the core.

10. The stator assembly of claim 8, wherein the end of the shunt member away from the outer sidewall of the channel defines a mounting hole for securing the core.

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