CN211209399U - Motor stator support and motor - Google Patents

Abstract

The utility model relates to a motor stator support and motor, this motor stator support is cylindric in order to hold motor stator, motor stator support includes the inner tube and prescribes a limit to the urceolus of cooling channel with the inner tube, cooling channel extends along circumference in order to encircle motor stator support setting, cooling channel includes inlet flow channel, outlet flow channel and circulation flow channel, inlet flow channel passes through circulation flow channel and outlet flow channel and connects, the coolant flow direction of the part of being connected with inlet flow channel among the circulation flow channel is opposite with the coolant flow in the inlet flow channel, the coolant flow direction of the part of being connected with outlet flow channel among the circulation flow channel is opposite with the coolant flow direction among the outlet flow channel, can effectively reduce the processing degree of difficulty and improve cooling efficiency simultaneously.

Description

Motor stator support and motor

Technical Field

The utility model relates to a motor especially relates to a motor stator support and motor with cooling runner.

Background

The biggest bottleneck of the motor with high power density is thermal management, and certain cost needs to be reduced to ensure that the motor can be applied in a large scale while the heat dissipation efficiency is ensured. In the existing heat dissipation schemes, natural cooling and air cooling cannot basically meet the heat dissipation requirements of the motor, and the traditional water cooling scheme is to arrange a spiral cooling water channel on the motor shell, so that the cooling water channel has low heat dissipation efficiency, complex process, inconvenient arrangement of water inlets and water outlets, uneven heat dissipation and high cost.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model discloses a first aim at provides a motor stator support, and this motor stator support is provided with the cooling runner, can the efficient heat dissipation and the processing cost is low.

In order to achieve the above object, an embodiment of the present invention provides a motor stator support, the motor stator support is a cylindrical support for accommodating a motor stator, the motor stator support includes an inner cylinder and an outer cylinder defining a cooling flow channel with the inner cylinder, the cooling flow channel extends along a circumferential direction to surround the motor stator support, the cooling flow channel includes an inlet flow channel, an outlet flow channel and a circulation flow channel, the inlet flow channel passes through the circulation flow channel and the outlet flow channel are connected, a cooling liquid flow direction of a portion of the circulation flow channel connected with the inlet flow channel is opposite to a cooling liquid flow direction in the inlet flow channel, a cooling liquid flow direction of a portion of the circulation flow channel connected with the outlet flow channel is opposite to a cooling liquid flow direction in the outlet flow channel.

The cooling runner is arranged around the motor stator support, so that the heat dissipation efficiency can be improved, the flow direction of the cooling liquid of the part, connected with the inlet runner, in the circulating runner is opposite to the flow direction of the cooling liquid in the inlet runner, and the flow direction of the cooling liquid of the part, connected with the outlet runner, in the circulating runner is opposite to the flow direction of the cooling liquid in the outlet runner.

An embodiment of the utility model provides a motor stator support, motor stator support is the tube-shape in order to hold motor stator, motor stator support includes the inner tube and inject cooling runner's urceolus with the inner tube, cooling runner extends along circumference in order to encircle motor stator support sets up, cooling runner includes import runner, export runner and circulation runner, import runner passes through circulation runner with export runner connects, in the circulation runner with the coolant liquid flow direction of the part that import runner connects with import runner coolant liquid flow direction in the export runner is opposite.

The special flow channel structure design that the flow direction of the cooling liquid of the part of the circulating flow channel in the motor stator support, which is connected with the inlet flow channel, is opposite to the flow direction of the cooling liquid in the inlet flow channel and the outlet flow channel can effectively reduce the processing difficulty and improve the cooling efficiency to a certain extent.

According to the utility model discloses motor stator support, the inlet runner with the outlet runner is located same radial cross section.

According to some embodiments of the present invention, the motor stator bracket is provided with an isolation rib, one side of the isolation rib is circumferentially spaced from the inlet flow channel and the circulation flow channel by a certain distance to form a first drainage area, and the coolant in the inlet flow channel flows to the circulation flow channel through the first drainage area; the other side of the isolation blocking rib is circumferentially spaced from the outlet flow channel and the circulating flow channel by a certain distance to form a second drainage area, and cooling liquid in the circulating flow channel flows to the outlet flow channel through the second drainage area.

According to some embodiments of the present invention, the motor stator support is provided with a first guide flow passage and a second guide flow passage, and the coolant in the inlet flow passage flows to the circulation flow passage through the first guide flow passage; and the cooling liquid in the circulating flow channel flows to the outlet flow channel through the second guide flow channel.

According to some embodiments of the present invention, M water channel ribs are disposed in the circulation flow channel to form a plurality of sub-circulation flow channels, M is greater than or equal to 1; n water channel ribs are arranged in the inlet flow channel to form a plurality of sub-inlet flow channels, and N is more than or equal to 1; t water channel ribs are arranged in the outlet flow channel to form a plurality of sub-outlet flow channels, and T is more than or equal to 1; wherein M, N, T are all equal or at least two are not equal.

According to the utility model discloses a some embodiments, the inlet runner is provided with the inlet, the outlet runner is provided with the liquid outlet, the inlet with the tip of the water course muscle in the inlet runner is at the interval certain distance in order to form the import drainage district in week.

According to some embodiments of the invention, the circulation flow channel the inlet flow channel and the outlet flow channel are provided with a plurality of spacing protrusions.

According to some embodiments of the invention, the cooling flow channel is a recessed structure provided on the outer circumference of the inner barrel; the outer cylinder and the inner cylinder are sleeved to seal the cooling flow channel.

In order to achieve the above object, an embodiment of another aspect of the present invention provides an electric machine, which includes the above-mentioned motor stator bracket.

According to the utility model discloses the motor because the cooling channel encircles the setting of motor stator support, consequently can make the radiating efficiency improve, the coolant flow of the part of being connected with the inlet runner among the circulating channel flows to opposite with the coolant flow among the inlet runner moreover, the coolant flow of the part of being connected with the outlet runner among the circulating channel flows to opposite this kind of special runner structural design with the coolant flow among the outlet runner and can improve cooling efficiency to a certain extent in effectual reduction processing degree of difficulty.

Drawings

Fig. 1 is a schematic structural view of a motor stator bracket according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an inner barrel according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an outer tub according to an embodiment of the present invention;

FIG. 4 is another schematic structural view of an inner barrel according to an embodiment of the present invention;

fig. 5 is a schematic view of a flow passage according to an embodiment of the present invention;

fig. 6 is a schematic view of a flow passage according to another embodiment of the present invention;

fig. 7 is another schematic structural view of the deployment of a flow passage according to another embodiment of the present invention;

fig. 8 is a schematic structural diagram of a motor according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The motor stator holder 10 and the motor 20 according to the embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 8, according to some embodiments of the present invention, a motor stator bracket 10 is provided, the motor stator bracket 10 is cylindrical to accommodate a motor stator, the motor stator bracket 10 includes an inner cylinder 21 and an outer cylinder 22 defining a cooling flow channel 4 with the inner cylinder, the cooling flow channel 4 extends in a circumferential direction to surround the motor stator bracket 10, the cooling flow channel 4 includes an inlet flow channel 41, an outlet flow channel 42 and a circulation flow channel 43, the inlet flow channel 41 is connected with the outlet flow channel 42 through the circulation flow channel 43, a flow direction of a coolant in a portion of the circulation flow channel 43 connected with the inlet flow channel 41 is opposite to a flow direction of a coolant in the inlet flow channel 41, and a flow direction of a coolant in a portion of the circulation flow channel 43 connected with the outlet flow channel 42 is opposite to a flow direction of a coolant in the outlet.

In another embodiment of the utility model, a motor stator support 10 is still provided, wherein motor stator support 10 is the tube-shape in order to hold motor stator, motor stator support 10 includes inner tube 21 and defines cooling channel 4's urceolus 22 with the inner tube, cooling channel 4 extends in order to encircle motor stator support 10 setting along circumference, cooling channel 4 includes inlet channel 41, exit runner 42 and circulation runner 43, inlet channel 41 passes through circulation runner 43 and exit runner 42 and connects, the coolant flow direction of the part of being connected with inlet channel 41 among the circulation runner 43 is opposite with the coolant flow in inlet channel 41, the exit runner 42.

It can be understood that, when the motor stator support 10 is cylindrical, the cooling flow channel 4 is circumferentially arranged around the motor stator support 10, and the inlet flow channel 41 is connected with the outlet flow channel 42 through the circulating flow channel 43, so that the cooling liquid can form a loop to cool the motor stator, and since the cooling flow channel 4 is circumferentially arranged around the cylindrical structure, the cooling efficiency can be effectively improved, so that the stator can be effectively cooled; the flow direction of the cooling liquid is opposite because the flow channel is designed to be similar to a Z-shaped structure or the whole loop is similar to a square-shaped structure, the structure has the characteristics of simple processing technology, low processing cost and capability of further improving the heat dissipation efficiency, and the flow channel structure can effectively reduce the flow resistance of the cooling liquid in the flow channel, reduce the power of the pressure pump and save the cost to a certain extent.

In the present disclosure, the inlet channel 41 and the outlet channel 42 are located on the same radial cross section.

Specifically, the inlet channel 41 and the outlet channel 42 are located on the same radial cross section, and the inlet channel 41 and the outlet channel 42 may respectively surround half of the circumference of the motor stator support 10, that is, the inlet channel 41 and the outlet channel 42 together surround the circumference of the motor stator support 10, so it can be understood that the circulating channel 43 needs to be arranged in the axial direction of the inlet channel 41 and the outlet channel 42, and when the cooling liquid enters from the inlet channel 41, the flow direction is turned to 180 ° after flowing through the half of the circumference along the inlet channel 41 and flows to the circulating channel 43, and after flowing through the circulating channel 43, the flow direction is turned to 180 ° and flows to the outlet channel 42, and after flowing through the half of the circumference through the outlet channel 42 and flows out, so the cooling effect of the cooling liquid can be better, the heat dissipation effect is better, and the heat dissipation.

In some embodiments of the present disclosure, the inlet channel 41 is provided with a liquid inlet 411, the outlet channel 42 is provided with a liquid outlet 421, and the liquid inlet 411 and the liquid outlet 421 are adjacently disposed; a separation rib 45 for separating the inlet flow passage 41 and the outlet flow passage 42 is disposed between the liquid inlet 411 and the liquid outlet 421.

Inlet 411 and liquid outlet 421 are adjacent to be set up and utilize to separate and keep off muscle 45 and separate inlet flow path 41 and outlet flow path 42, because the coolant temperature in liquid outlet 421 is higher, consequently near liquid outlet 421 local overheat forms easily, when inlet 411 and liquid outlet 421 are adjacent to be set up, the relatively lower coolant liquid of temperature that can effectively utilize inlet 411 to get into cools off near liquid outlet 421, reduce the business turn over liquid mouth difference in temperature, make its even heat dissipation, prevent local high temperature and make magnet steel demagnetization or burn out the winding to a certain extent, business turn over liquid mouth sets up the setting that can make things convenient for cooling cycle device at same end simultaneously, effectual space saving and cost saving.

The motor stator support 10 is further provided with an isolation blocking rib 3, a certain distance is formed between one side of the isolation blocking rib 3 and the inlet flow channel 41 and between one side of the isolation blocking rib 3 and the circulating flow channel 43 in the circumferential direction to form a first diversion area 51, and the cooling liquid in the inlet flow channel 41 flows to the circulating flow channel 43 through the first diversion area 51; the other side of the isolating barrier rib 3 is circumferentially spaced from the outlet flow channel 42 and the circulating flow channel 43 to form a second diversion area 52, and the cooling liquid in the circulating flow channel 43 flows to the outlet flow channel 42 through the second diversion area 52.

Specifically, one side of the separating rib 3 faces the inlet channel 41 and the circulating channel 43, and the separating rib 3 is circumferentially spaced from the inlet channel 41 and the circulating channel 43 to form a first guide area 51 without an obstruction, so that the cooling liquid in the inlet channel 41 flows to the circulating channel 43 through the first guide area 51, it can be understood that, because the inlet channel 41 and the circulating channel 43 are axially arranged relative to each other, the cooling liquid flowing from the inlet channel 41 needs to turn 180 ° to flow into the circulating channel 43, and the first guide area 51 formed between the separating rib 3 and the inlet channel 41 and the circulating channel 43 has no obstruction in a certain distance in the axial direction and the circumferential direction, so that the cooling liquid can conveniently flow from the inlet channel 41 to the circulating channel 43; it can be understood that the other side of the separating rib 3 and the outlet channel 42 and the circulating channel 43 also define a second diversion area 52, so that the cooling liquid flowing out of the circulating channel 43 flows into the outlet channel 42 after turning 180 degrees.

In another embodiment of the present disclosure, the motor stator support 10 is further provided with a first guide flow passage 53 and a second guide flow passage 54, and the cooling liquid in the inlet flow passage 41 flows to the circulation flow passage 43 through the first guide flow passage 53; the coolant in the circulation flow path 43 flows to the outlet flow path 42 through the second guide flow path 54.

Specifically, the motor stator frame 10 may also be configured to guide the coolant in the inlet flow channel 41 to the circulation flow channel 43 through the first guide flow channel 53 and to guide the coolant in the circulation flow channel 43 to the outlet flow channel 42 through the second guide flow channel 54, without providing the partition rib 3.

In the present disclosure, M water channel ribs 46 are provided in the circulation flow channel 43 to form a plurality of sub-circulation flow channels, M is greater than or equal to 1; n water channel ribs 46 are arranged in the inlet flow channel 41 to form a plurality of sub-inlet flow channels, wherein N is greater than or equal to 1; the outlet flow channel 42 is provided with T water channel ribs 46 to form a plurality of sub-outlet flow channels, and T is more than or equal to 1; wherein M, N, T may both be equal or at least both may be different.

It should be understood that M, N and T may be equal or unequal, that is, the number of the sub-circulation channels, the number of the sub-inlet channels and the number of the sub-outlet channels may be equal to or unequal to the three, or the number of the sub-circulation channels, the number of the sub-inlet channels and the number of the sub-outlet channels may be equal to or unequal to the three, and the specific number may be set according to the requirement.

It can be understood that the sub-runners can block the coolant from moving along the axial direction to a certain extent, so that the coolant in the runners can be distributed as uniformly as possible, and therefore, in a certain range, the more the sub-runners are, the more uniform the heat dissipation is, the local overheating or the uneven heat dissipation can be effectively prevented, and meanwhile, the water channel ribs 46 can also conduct the heat of the inner cylinder 21, so that the heat dissipation area of the inner cylinder 21 can be increased to a certain extent by the water channel ribs 46, and the better heat dissipation effect is achieved; and no obstacle exists in the first guide flow area 51 and the second guide flow area 52, so that the resistance of the cooling liquid during turning can be reduced to a certain extent, and the distribution of the cooling liquid entering the next flow channel can be more uniform to a certain extent.

In one embodiment of the present disclosure, the widths of the channel ribs 46 in the axial direction may be unequal, and the channel ribs are designed to be narrower where the flow resistance is larger, so that the flow channel can be enlarged, and the flow resistance can be reduced; the design of the water channel ribs at the place with smaller flow resistance is wider, so that the flow channel is reduced, the flow resistance can be better ensured to be more even, the power of the pump can be reduced to a certain extent, and the cost is reduced.

In another embodiment of the present disclosure, the widths of the water channel ribs 46 in the axial direction may also be equal, which can reduce the processing difficulty and save the cost.

In one embodiment of the present disclosure, the water passage ribs 46 provided in the circulation flow passage 43 are equal in length in the circumferential direction; or the length of the water channel ribs 46 provided in the circulation flow path 43 in the circumferential direction is proportional to the distance between the water channel ribs 46 and the partition ribs 45.

Specifically, the lengths of the water channel ribs 46 in the circulation flow channel 43 in the circumferential direction may be equal in length or unequal in length, and the lengths of the water channel ribs are increased along with the increase of the distance from the water channel rib 46 to the separation blocking rib 45, that is, the closer the distance from the inlet flow channel 41 is, the shorter the length of the water channel rib 46 is, wherein one end of the shortest water channel rib 46 is flush with the end of the liquid outlet end of the water channel rib 46 in the inlet flow channel 41, and the other end of the shortest water channel rib is flush with the end of the liquid inlet end of the water channel rib 46 in the outlet flow channel 42, so that the coolant in the liquid inlet flow channel 41 can fully and uniformly enter the circulation flow channel 43, and the uniformity of heat dissipation.

In one embodiment of the present disclosure, the sub-circulation flow paths in the circulation flow path 43 are connected in a zigzag shape.

Specifically, when a plurality of sub-circulation flow channels are provided in the circulation flow channel 43, the plurality of sub-circulation flow channels can be sequentially connected in the axial direction to form a connection similar to a zigzag shape, and at this time, when the coolant in the outlet flow channel 42 flows to the circulation flow channel 43 through the guide, the coolant flows back in the circulation flow channel 43 along the zigzag-shaped sub-circulation flow channels and then flows out from the outlet flow channel 42, and the zigzag-shaped flow channel can increase the length of the flow channel in an effective space, thereby improving the heat dissipation efficiency.

In one embodiment, the liquid inlet 411 and the ends of the water channel ribs 46 in the inlet channel 41 are circumferentially spaced apart to form an inlet bleed area 55.

Preferably, the liquid inlet 411 arranged on the inlet channel 41 and the inlet diversion area 55 formed by the end of the water channel rib 46 in the inlet channel 41 in the circumferential direction have no obstacles in the circumferential direction, so that the cooling liquid entering from the liquid inlet 411 can fully and uniformly enter each sub-inlet channel through the inlet diversion area 55, and thus each sub-inlet channel can uniformly dissipate heat to a certain extent, local overheating is prevented, and the cooling liquid entering each subsequent channel can be uniformly distributed; it is understood that the outlet 421 may also be spaced from the channel ribs 46 in the outlet channel 42 in the circumferential direction to form the outlet diversion area 56.

In one embodiment, a plurality of spacing protrusions 5 are provided in the circulation flow path 43, the inlet flow path 41, and the outlet flow path 42.

Preferably, the protrusions 5 can be further arranged in each flow channel to enable the flowing cooling liquid to form turbulence, so that the flow velocity of the local cooling liquid is improved, and the heat dissipation efficiency is higher; it can be understood that, the channel ribs 46 can be replaced by the protrusions 5 arranged at certain intervals along the circumferential direction, because the protrusions 5 can block the cooling liquid in the axial direction when arranged at certain intervals along the circumferential direction, the cooling liquid entering each sub-channel defined by the protrusions 5 can be distributed uniformly to a certain extent, and meanwhile, the cooling liquid can also increase in speed within a small range due to the formation of turbulent flow when flowing through the protrusions 5, thereby accelerating heat dissipation. It will be appreciated that the spacing between the projections 5 may be equal or unequal, and need to be set as desired.

In the present disclosure, the cooling flow passage 4 is a recessed structure provided on the outer periphery of the inner tube 21; the outer cylinder 22 and the inner cylinder 21 are fitted to seal the cooling flow passage 4.

The cooling flow channel 4 is arranged on the periphery of the inner barrel 21, so that the cooling flow channel can be conveniently processed, the outer barrel 22 can be conveniently utilized for socket joint sealing, the cooling flow channel 4 is inwards sunken, the weight of the motor stator support 10 can be reduced to a certain extent, and the cooling flow channel can be closer to a heating component, so that better heat dissipation can be realized, and the sealing is also more convenient.

It can be understood that the outer cylinder 22 and the inner cylinder 21 may be in an interference fit, so that the cooling flow channel 4 is sealed in the radial direction, and only can flow in and out from the liquid inlet 411 and the liquid outlet 421, thereby effectively preventing the leakage of the cooling liquid, and the inner cylinder 21 serves as a reference surface, and has a smaller surface roughness.

In some embodiments, the inner cylinder 21 is further provided with an end face with a diameter larger than that of the outer cylinder at the liquid inlet and outlet ends, when the outer cylinder 22 and the inner cylinder 21 are sleeved to form the motor support shell 2, one end of the outer cylinder 22 abuts against the end face, the outer cylinder 22 and the end face are connected by using the bolt 1 so as to be capable of effectively transmitting torque, and the end face and the edge junction face of the outer cylinder 22 are connected by adopting a welding mode at the edge junction so as to be capable of better sealing, and when necessary, the junction face of the inner cylinder 21 and the outer cylinder 22 can be welded after being coated with a layer of plane sealant so as to enhance the sealing effect.

An embodiment of another aspect of the present invention provides a motor 20, which includes the above-mentioned motor stator bracket 10.

According to the motor 20 of the present invention, since the motor stator support 10 is provided, when the motor stator support 10 is cylindrical, the cooling flow passage 4 is disposed around the motor stator support 10, and the inlet flow path 41 is connected to the outlet flow path 42 through the circulation flow path 43, so that the cooling fluid forms a loop to cool the stator of the motor, and since the cooling flow path 4 is provided around the cylindrical structure, therefore, the cooling efficiency can be effectively improved, the stator can be effectively cooled, the flow direction of the cooling liquid is opposite, because the flow channel is designed to be similar to a "" shape structure or the whole loop is similar to a "" shape structure, the structure has the characteristics of simple processing technology, low processing cost and capability of further improving the heat dissipation efficiency, the flow channel structure can effectively reduce the flow resistance of the cooling liquid in the flow channel and reduce the power of the pressure pump; the inlet and the adjacent cooling liquid that sets up the temperature that can effectually utilize the inlet to get into relatively lower cools off near the liquid outlet, reduces business turn over liquid mouth temperature difference, makes its even heat dissipation, prevents to a certain extent that local temperature is too high and make magnet steel demagnetization or burn out the winding, and business turn over liquid mouth setting can make things convenient for cooling cycle device's setting at same end simultaneously, effectual saving space and saving cost.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a motor stator support, motor stator support (10) are the tube-shape in order to hold motor stator, its characterized in that: the motor stator support (10) comprises an inner cylinder (21) and an outer cylinder (22) defining a cooling flow channel (4) with the inner cylinder, the cooling flow channel (4) extends along the circumferential direction to be arranged around the motor stator support (10), the cooling flow channel (4) comprises an inlet flow channel (41), an outlet flow channel (42) and a circulating flow channel (43), the inlet flow channel (41) is connected with the outlet flow channel (42) through the circulating flow channel (43), the flow direction of cooling liquid of a part, connected with the inlet flow channel (41), in the circulating flow channel (43) is opposite to that of cooling liquid in the inlet flow channel (41), and the flow direction of cooling liquid of a part, connected with the outlet flow channel (42), in the circulating flow channel (43) is opposite to that of cooling liquid in the outlet flow channel (42).

2. The utility model provides a motor stator support, motor stator support (10) are the tube-shape in order to hold motor stator, its characterized in that: motor stator support (10) include inner tube (21) and with the outer tube (22) that the inner tube injectd cooling channel (4), cooling channel (4) extend along circumference in order to encircle motor stator support (10) set up, cooling channel (4) include inlet flow path (41), export flow path (42) and circulation flow path (43), inlet flow path (41) pass through circulation flow path (43) with export flow path (42) are connected, the coolant liquid flow direction of the part that with inlet flow path (41) is connected in circulation flow path (43) with inlet flow path (41), coolant liquid flow in export flow path (42) is opposite.

3. A stator support for an electric machine according to claim 1 or 2, characterised in that the inlet channel (41) and the outlet channel (42) are located on the same radial section.

4. The motor stator bracket according to claim 3, characterized in that the motor stator bracket (10) is provided with an isolation rib (3), one side of the isolation rib (3) is circumferentially spaced from the inlet flow channel (41) and the circulation flow channel (43) to form a first diversion area (51), and the cooling liquid in the inlet flow channel (41) flows to the circulation flow channel (43) through the first diversion area (51); the other side of the isolating baffle rib (3) is circumferentially spaced from the outlet flow channel (42) and the circulating flow channel (43) at a certain distance to form a second guide flow area (52), and the cooling liquid in the circulating flow channel (43) flows to the outlet flow channel (42) through the second guide flow area (52).

5. The motor stator bracket according to claim 3, wherein the motor stator bracket (10) is provided with a first guide flow passage (53) and a second guide flow passage (54), and the cooling liquid in the inlet flow passage (41) flows to the circulation flow passage (43) through the first guide flow passage (53); the coolant in the circulating flow passage (43) flows to the outlet flow passage (42) through the second guide flow passage (54).

6. The motor stator support according to claim 4, characterized in that M water channel ribs (46) are arranged in the circulation flow channel (43) to form a plurality of sub-circulation flow channels, M is greater than or equal to 1; n water channel ribs (46) are arranged in the inlet flow channel (41) to form a plurality of sub-inlet flow channels, and N is more than or equal to 1; t water channel ribs (46) are arranged in the outlet flow channel (42) to form a plurality of sub-outlet flow channels, and T is more than or equal to 1; wherein M, N, T are all equal or at least two are not equal.

7. The motor stator bracket according to claim 6, characterized in that the inlet flow channel (41) is provided with an inlet opening (411), the outlet flow channel (42) is provided with an outlet opening (421), and the inlet opening (411) and the end of the water channel rib (46) in the inlet flow channel (41) are circumferentially spaced to form an inlet drainage area (55).

8. An electric machine stator support according to claim 4, characterized in that a plurality of spacing protrusions (5) are provided in the circulation flow channel (43), the inlet flow channel (41) and the outlet flow channel (42).

9. The motor stator bracket according to claim 7, characterized in that the cooling flow channel (4) is a recessed structure provided on the outer circumference of the inner tube (21), and the outer tube (22) and the inner tube (21) are sleeved to seal the cooling flow channel (4).

10. An electric machine, characterized in that it comprises a stator frame (10) of an electric machine according to any one of claims 1-9.

Images