Cooling system for an electric machine

Abstract

In some embodiments, a cooling system (102) for an electric motor (100) may include an air inlet (132) at a first end (128) of the motor (100), the air inlet being configured to provide an airflow (118) through the housing (108) of the motor (100). The cooling system (102) may include one or more baffles (104) removably coupled to the stator (112) of the motor (100), the one or more baffles (104) being positioned near a second end (130) of the motor (100), and the one or more baffles (104) being configured to direct the airflow (118) toward one or more windings (116) of the motor (100) at the second end (130). The cooling system (102) may include one or more openings (106) in the housing (108) of the motor (100) near the second end (130) of the motor (100), the one or more openings being configured to allow airflow (118) to enter or exit the housing (108).

Description

Technical Field

[0001] This disclosure generally relates to electric motors, and for example to cooling systems for electric motors. Background Technology

[0002] An electric motor (e.g., an electric motor, a generator, or another type of motor) may include one or more windings and a stator. The stator includes one or more slots or cavities (e.g., teeth) that house the windings. The stator is the stationary core of the motor, providing a stable base for other components. The windings (also called coils or winding assemblies) consist of wires wound around the teeth of the stator. The windings are placed in the stator to generate an electromagnetic field when an electric current is applied. In some examples, the rotor of the motor may also include one or more windings (e.g., armature windings). The windings included in the stator generate an electromagnetic field (e.g., when an electric current is applied) to cause the rotor to rotate (e.g., to produce a mechanical output).

[0003] During operation, a motor may generate heat. For example, the flow of current through the windings causes electrical energy to dissipate as heat. The motor may include a cooling system that allows a fluid flow (e.g., airflow) to pass through motor components such as windings to cool them. However, as the fluid flow passes through the motor, the fluid flow can be heated. Therefore, components located closer to the fluid flow outlet (e.g., windings) may not cool at the same rate as components located closer to the fluid flow inlet (e.g., windings). This uneven cooling of components can cause one or more problems. For example, uneven cooling of windings can lead to uneven wear of the windings (e.g., less cooled windings (or portions of windings) may wear out faster). Furthermore, uneven cooling can create hot spots within the windings. These hot spots can cause localized overheating, which can lead to insulation failure and / or reduced winding life. Overheating caused by uneven cooling accelerates winding aging. Premature aging significantly shortens the expected life of the motor, resulting in more frequent maintenance or replacement (e.g., of the windings and / or the entire motor). Furthermore, uneven cooling may cause the motor to generate additional flow to adequately cool the motor windings and / or other components, thereby consuming the power resources associated with generating the additional flow (e.g., via one or more fans or pumps).

[0004] U.S. Patent No. 6,188,153 ('153 Patent) discloses a segmented stator end-turn air deflector for a forced-ventilation alternating current (AC) motor, which can be retrofitted into an existing motor to redirect airflow through channels in the motor's stator. In an exemplary form, the segmented stator end-turn air deflector comprises a plurality of generally flat plates, each plate having a trapezoidal shape with arcuate inner and outer edges for positioning within a cylindrical motor housing. The plates may be oriented perpendicular to the direction of airflow through the motor stator, thereby causing air exiting the stator channels to impinge on the plates and be radially guided into the motor and onto the end turns of the motor coils or windings.

[0005] However, the plate disclosed in '153 patent cannot adequately guide air in the motor because the plate is flat and cannot efficiently direct airflow toward the components to be cooled. Furthermore, the plate disclosed in '153 patent may guide already heated air, leading to inefficient cooling of the windings.

[0006] The cooling system disclosed herein solves one or more of the problems described above and / or other problems in the art. Summary of the Invention

[0007] In some embodiments, a cooling system for an electric motor includes: an air inlet at a first end of the motor, the air inlet being configured to provide airflow through the motor housing; one or more baffles removably coupled to the stator of the motor, the one or more baffles being positioned near a second end of the motor and the one or more baffles being configured to direct the airflow toward one or more windings of the motor at the second end; and one or more openings in the motor housing near the second end of the motor, the one or more openings being configured to allow the airflow to enter or exit the housing.

[0008] In some embodiments, an electric motor includes: a housing including an air inlet; a stator; one or more windings disposed within the stator, the one or more windings extending from a first end of the motor to a second end of the motor, the first end being adjacent to the air inlet; and one or more baffles extending away from the one or more windings and toward the first end.

[0009] In some embodiments, a cooling system for an electric motor includes: an air inlet at a first end of the motor, the air inlet being configured to provide airflow through the housing of the motor; and one or more baffles removably coupled to the stator of the motor, the one or more baffles being positioned near a second end of the motor, the one or more baffles extending away from the stator and angled toward the first end, and the one or more baffles being configured to direct the airflow toward one or more windings of the motor at the second end. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of an exemplary motor.

[0011] Figure 2 This is a perspective view of an exemplary motor.

[0012] Figure 3 This is a perspective view of an exemplary motor.

[0013] Figure 4 This is a perspective view of an exemplary motor.

[0014] Figure 5 This is a partial cross-sectional view of an exemplary motor.

[0015] Figure 6 This is a perspective view of an exemplary baffle.

[0016] Figure 7 This is a perspective view of an exemplary baffle. Detailed Implementation

[0017] This disclosure relates to a cooling system suitable for any electric motor. For example, the motor can be an electric motor, a generator, and / or a transformer, among other examples. In some examples, the motor can power an electric propulsion system. For instance, the motor can be included in an electric drive traction system that provides driving force to the traction device of a working machine. In some examples, the motor can be a switched reluctance motor or a traction motor.

[0018] Figure 1 This is a cross-sectional view of an exemplary motor 100. Motor 100 may include a cooling system 102. As described in more detail elsewhere herein, cooling system 102 may include one or more baffles 104 and / or one or more openings 106 in a housing 108 (also referred to as a shell) of motor 100. In some examples, cooling system may include one or more pumps, fans, and / or other components associated with causing airflow. Figure 1 (Not shown in the image).

[0019] Motor 100 includes a housing 110 (or is included within a housing). In some examples, housing 110 may be a shaft housing (e.g., of a work machine or vehicle). In other examples, motor 100 may not include housing 110 (or may not be included within a housing). Motor 100 may include a stator 112 and a rotor 114 rotatably disposed therein. In some examples, an annular stator sheath surrounds and circumferentially engages the outer peripheral surface of stator 112.

[0020] The stator 112 has a stator body having an inner circumferential surface facing the rotor 114. In some examples, a plurality of stator poles extend radially inward from the inner circumferential surface of the stator body. Each stator pole has a pair of opposing side surfaces. The space between the opposing side surfaces of adjacent stator poles defines stator slots in which windings 116 (also referred to as coils or wires) are positioned. In other words, each stator pole has a winding 116 (or coil) wound around it, such that a portion of each coil is positioned in an adjacent stator slot. The windings 116 are positioned around stator poles of each set of phases, which are electrically connected in parallel or series as part of a circuit. The stator 112 can be formed by stacking a plurality of single continuous annular iron members together. An insulating layer (not shown) can be provided between each iron member.

[0021] Rotor 114 has a rotor body having a plurality of rotor poles extending radially outward from the body. In a switched reluctance motor, rotor 114 has no windings or magnets. In other examples, rotor 114 may have one or more windings or magnets. Rotor 114 may be formed by stacking continuous annular members (not shown) of laminated iron monoliths. Rotors 114 with other structures and configurations are contemplated. Additionally, although... Figure 1 The motor described herein is an electric motor, but the concepts disclosed herein apply to other rotating motors.

[0022] like Figure 1As shown, cooling system 102 is configured to provide a fluid (e.g., air) flow through motor 100 to cool one or more components of motor 100, such as one or more windings 116. For example, airflow 118 may pass through inlet 120 in housing 110. Airflow 118 may pass through passage 122 disposed between outer surface 124 of housing 108 and inner surface 126 of housing 110. Cooling system 102 may be configured to allow airflow 118 to enter housing 108 near first end 128. First end 128 may be a first end of housing 108, a first end of one or more windings 116, or a first end of rotor 114. Cooling system 102 is configured to allow airflow from first end 128 through the motor to a second end 130 (e.g., the location where airflow 118 exits housing 108). Second end 130 may be a second end of housing 108, a second end of one or more windings 116, or a second end of rotor 114. Housing 108 may include one or more air inlets 132 at first end 128. One or more air inlets 132 are configured to allow airflow 118 to enter housing 108.

[0023] like Figure 1 As shown, the airflow can be heated (e.g., due to heat dissipated by one or more components of the motor 100, such as one or more windings) as it flows from the first end 128 to the second end 130. Therefore, the first end 128 can be referred to as the "cold" end of the motor 100, and the second end 130 can be referred to as the "hot" end of the motor 100. The airflow 118 can pass through a passage 134 included in the housing 108. The passage 134 is located between the inner surface 136 of the housing 108 and the outer surface 138 of the stator 112.

[0024] One or more baffles 104 are disposed on the stator 112 near (or at) the second end 130. For example, one or more baffles 104 are removably attached to the stator 112. One or more baffles 104 are configured to deflect or direct airflow 118 toward one or more components (e.g., one or more windings 116) near the second end 130 of the motor 100 (e.g., to improve cooling of one or more components of the motor 100 that might otherwise be less cooled than components located near the first end 128). Additionally, one or more openings 106 are configured to allow airflow from passage 122 to the interior of the housing 108 near the second end 130. For example, as... Figure 1 As shown, the cooling system 102 may include one or more openings 106 to allow cold air to enter the housing 108 near the second end 130 (e.g., to improve the cooling of one or more components of the motor 100 that may otherwise be less cooled than components located near the first end 128).

[0025] As mentioned above, Figure 1 Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 1 The examples described are different.

[0026] Figure 2 This is a perspective view of an exemplary motor 100. Figure 2 The motor 100 depicted includes a cooling system 102.

[0027] The housing 108 has an annular configuration or shape. In other examples, the housing 108 may have different configurations or shapes. One or more openings 106 are located in the housing 108 of the motor 100 near the second end 130. One or more openings 106 are configured to allow airflow (e.g., airflow 118) to enter and / or exit the housing 108 (e.g., near the second end 130). One or more openings 106 are located near one end of the housing 108 that is opposite to one end of the housing 108 that includes one or more air inlets 132 for the cooling system 102 (e.g., opposite to the first end 128) (e.g., near the second end 130). One or more openings 106 may be referred to as holes, orifices, and / or apertures, among other examples. One or more openings 106 may create an opening from the outer surface 124 of the housing 108 to the inner surface 136 of the housing 108.

[0028] In some examples, one or more openings 106 are a plurality of openings spaced apart around the periphery of housing 108. For example, one or more openings 106 are spaced apart around the outer periphery of housing 108. For example, one or more openings 106 are circumferentially spaced around the body of housing 108. In some examples, one or more openings are a plurality of openings equidistantly spaced around the periphery of housing 108 (e.g., equidistant or uniformly spaced around the circumference of housing 108). One or more openings 106 are each positioned at a distance equal to that from the second end 130 and / or from the first end 128. One or more openings 106 are positioned close to the second end 130. For example, one or more openings 106 are positioned closer to the second end 130 than the first end 128.

[0029] The location of one or more openings 106 may be at least partially based on the location of one or more baffles 104. For example, one or more openings 106 may be located near the location of one or more baffles 104 (e.g., relative to the second end 130). In some examples, one or more baffles 104 are configured relative to the first end 128 behind one or more openings 106 (e.g., so that airflow (such as airflow 118) can be cooled by air entering the housing 108 via one or more openings 106 before being deflected or directed by one or more baffles 104).

[0030] As mentioned above, Figure 2Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 2 The examples described are different.

[0031] Figure 3 This is a perspective view of an exemplary motor 100. Figure 3 The motor 100 depicted includes a cooling system 102.

[0032] The cooling system 102 includes one or more baffles 104 configured in a housing 108. One or more baffles 104 are removably coupled to the stator 112 of the motor 100. Additionally or alternatively, one or more baffles 104 are removably coupled to the rotor 114. In some examples described herein, one or more baffles 104 are depicted and / or described as coupled to the stator 112. However, as described herein, one or more baffles 104 may be similarly coupled to the rotor 114. For example, each baffle 104 is coupled to the stator 112 or the rotor 114 via a bracket 140. The bracket 140 is removably coupled to the stator 112 via one or more bolts, one or more pins and clamp fasteners (e.g., U-shaped pins or cotter pins), one or more fasteners, one or more rivets, and / or another type of removable fastening mechanism. For example, one or more baffles 104 are removably coupled to the stator via a corresponding bracket 140.

[0033] One or more baffles 104 are positioned near the second end 130. One or more baffles 104 extend away from one or more windings 116 and toward the first end 128, as depicted and described in more detail elsewhere herein. For example, one or more baffles 104 extend away from the stator 112 and into a passage 134. One or more baffles 104 are configured to direct airflow (e.g., airflow 118) toward one or more windings 116 of the motor 100 at the second end 130 via extension into the passage 134.

[0034] like Figure 3 As shown, one or more baffles 104 may extend around the periphery of the inner surface 136 of the housing 108. For example, one or more baffles 104 extend circumferentially around the interior of the housing 108. As an example, the stator 112 has a cylindrical body 142. One or more baffles 104 are arranged around the circumference of the cylindrical body 142.

[0035] One or more baffles 104 may be a plurality of baffles 104 spaced circumferentially around the cylindrical body 142 (e.g., as shown in the image). Figure 3 (As shown in the diagram). For example, multiple baffles 104 are circumferentially spaced evenly or equally in the passage 134. The cooling system 102 may include a number of baffles 104 and / or the baffles 104 may be sized to leave small gaps or no gaps between the baffles 104 around the circumference of the passage 134.

[0036] In some examples, the cooling system 102 includes one or more baffles 104 having a through-flow 144 (e.g., as combined) Figure 7 (To be described or illustrated in more detail). Because the gaps between the baffles 104 in the passage 134 are small or nonexistent, the through 144 is configured to allow pipes, lines, conduits and / or other components of the motor 100 to pass through from the second end 130 into the interior of the motor 100.

[0037] As mentioned above, Figure 3 Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 3 The examples described are different.

[0038] Figure 4 This is a perspective view of an exemplary motor 100. Figure 4 The motor 100 depicted includes a cooling system 102.

[0039] like Figure 4 As shown, baffle 104 is removably coupled to stator 112. Baffle 104 includes bracket 140 and deflector 146. Bracket 140 is coupled to stator 112 via one or more removable coupling devices. Figure 4 As shown, the removable coupling device includes one or more bolts and nuts. Figure 4 Four bolts and nuts are depicted for removably securing the baffle 104 to the stator 112. However, any suitable number and / or type of removable attachment device can be used to removably connect or secure the baffle 104 to the stator 112. In other examples, removable attachment devices include fasteners, screws, rods and pins, rivets, or other means that allow the baffle 104 to be removed from the stator 112.

[0040] The bracket 140 has a geometry corresponding to that of the stator 112. For example... Figure 4 As shown, stator 112 has a cylindrical body 142 (or a curved body). Bracket 140 may have a curvature similar to the cylindrical body 142 of stator 112. The radius of curvature 148 in bracket 140 is based on the radius of stator 112 (e.g., the radius of the cylindrical body 142). For example, the radius of curvature 148 may be the radius of stator 112, or it may be within tolerances of the radius of stator 112. In some examples, the radius of curvature 148 in bracket 140 is based on the radius of housing 108. For example, the radius of curvature 148 may be the radius of housing 108, or it may be within tolerances of the radius of housing 108.

[0041] Deflector 146 extends from bracket 140 into passage 134. The deflector extends away from stator 112 and / or one or more windings 116 and toward housing 108. The geometry of deflector 146 is based on the geometry of housing 108 and / or passage 134. Figure 4 As shown, housing 108 has a cylindrical or annular geometry, and deflector 146 is bent into a similar cylindrical or annular geometry as housing 108. For example, the curvature 150 in deflector 146 is based on the radius of housing 108 (e.g., on the inner surface 136 of housing 108). The radius of curvature 150 can be the radius of the inner surface 136 of housing 108, or it can be within tolerance of the radius of the inner surface 136 of housing 108. Deflector 146 is configured to deflect or guide airflow in passage 134 (e.g., airflow 118) toward the center of housing 108 (e.g., toward one or more windings 116).

[0042] As mentioned above, Figure 4 Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 4 The examples described are different.

[0043] Figure 5 This is a partial cross-sectional view of an exemplary motor 100. Figure 5 The motor 100 depicted includes a cooling system 102.

[0044] like Figure 5 As shown, a baffle 104 extends between the stator 112 and the inner surface 136 of the housing 108. The baffle 104 extends into a passage 134. The baffle 104 is configured to deflect or direct airflow 118 toward the interior of the housing 108 (e.g., toward one or more windings 116). A gap 152 exists between the baffle 104 and the inner surface 136 of the housing 108. One or more baffles 104 are configured to create a gap 152 (e.g., a uniform gap) around the circumference of the inner surface 136. The gap 152 may be less than or equal to a threshold. For example, the gap 152 may be a small gap to direct or deflect most of the airflow 118 toward the interior of the housing 108 (e.g., toward one or more windings 116).

[0045] One or more baffles 104 are directed toward the first end 128 of the motor 100. Figure 5 (Not shown in the image) and extends away from the second end 130. One or more baffles 104 are angled toward the first end 128 and away from the second end 130. In other words, one or more baffles 104 are angled against the direction of airflow 118. For example, deflector 146 may be angled relative to bracket 140 of baffle 104. Figure 5As shown, an angle 154 may exist between the deflector 146 and the bracket 140. Angle 154 is less than 180 degrees. Angle 154 is less than 180 degrees and greater than 90 degrees.

[0046] Similarly, the baffle 104 is at an angle relative to the stator 112. For example, the baffle 104 is at an angle relative to the outer surface of the stator 112 and / or relative to the axis of the stator 112. Figure 5 As shown, an angle 156 exists between baffle 104 (e.g., deflector 146) and stator 112. Angle 156 is less than 90 degrees. In some examples, angle 156 is less than 90 degrees and greater than 30 degrees. The angle of baffle 104 increases the amount of air guided or deflected by baffle 104.

[0047] One or more baffles 104 are disposed behind one or more openings 106 relative to the first end 128 of the motor 100. Figure 5 As shown, baffle 104 is positioned in front of opening 106 relative to the second end 130. This allows cold air to enter the housing through opening 106. The cold air lowers the temperature of airflow 118. The cooled airflow 118 (e.g., airflow heated as it travels through housing 108 and / or passage 134) is then directed or deflected toward the interior of housing 108 (e.g., toward one or more windings 116).

[0048] As mentioned above, Figure 5 Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 5 The examples described are different.

[0049] Figure 6 This is a perspective view of an exemplary baffle 104. Figure 6 The baffle 104 depicted is included in the cooling system 102 of the motor 100.

[0050] Baffle 104 includes bracket 140 and deflector 146. Bracket 140 and deflector 146 are single integral parts forming baffle 104. Baffle 104 may be metal, such as a metal sheet. In other examples, baffle 104 is a molded part made of any suitable material, such as metals, cast iron, aluminum, plastics, and / or composite materials, among other examples.

[0051] The bracket 140 includes one or more attachment segments 158. The baffle 104 is configured to be removably coupled to the stator 112 via one or more attachment segments 158. Figure 6 (Not shown in the image). For example, such as... Figure 5 As shown, the attachment segment 158 ​​includes one or more openings 160. The one or more openings 160 are configured to facilitate removable attachment mechanisms, such as bolts, and other examples.

[0052] Baffle 104 includes an angle 154 between deflector 146 and bracket 140. Angle 154 is configured to angle baffle 104 against the flow direction of airflow 118 when baffle 104 is disposed in motor 100 (e.g., as depicted and described elsewhere herein). Baffle 104 includes curvature 148. Curvature 148 is configured to allow bracket 140 to match or resemble the geometry of stator 112 (e.g., to reduce the complexity associated with removably attaching baffle 104 to stator 112). Baffle 104 includes curvature 150. Curvature 150 is configured to match or resemble the geometry of inner surface 136 of housing 108 (e.g., as depicted and described elsewhere herein). For example, curvature 150 is configured to allow the gap 152 between baffle(s) 104 and inner surface 136 to be relatively uniform or equal on the circumference of inner surface 136.

[0053] As mentioned above, Figure 6 Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 6 The examples described are different.

[0054] Figure 7 This is a perspective view of an exemplary baffle 104. Figure 7 The baffle 104 depicted is included in the cooling system 102 of the motor 100.

[0055] Figure 7 The baffle 104 depicted includes a through-hole 144. Figure 7 The baffle 104 depicted herein may also be similar to one or more baffles 104 depicted and described elsewhere herein. Since the gaps between the baffles 104 in the passage 134 are small or nonexistent, the passage 144 is configured to allow pipes, lines, conduits and / or other components of the motor 100 to pass from the second end 130 into the interior of the motor 100 (e.g., as depicted and described elsewhere herein).

[0056] The through-pass 144 may include a first portion 162 and a second portion 164. The first portion 162 may be at an angle of approximately 90 degrees to the bracket 140. The first portion 162 may be angled in a direction opposite to that of the deflector 146. For example, the deflector may be angled toward a first side of the baffle 104, and the first portion 162 may extend from a second side of the baffle 104. The second portion 164 is an extension of the bracket 140. The first and second portions 164 define the through-pass 144.

[0057] As mentioned above, Figure 7 Provided as an example. Other examples may be provided with reference to [the relevant information]. Figure 7 The examples described are different.

[0058] Industrial applicability

[0059] During operation, an electric motor can generate heat. The motor may include a cooling system that directs a fluid flow (e.g., airflow) through motor components such as windings to cool them. However, as the fluid flow passes through the motor, the fluid flow can be heated. Therefore, components located closer to the fluid flow outlet (e.g., windings) may not cool at the same rate as components located closer to the fluid flow inlet (e.g., windings). This uneven cooling of components can cause one or more problems. For example, uneven cooling of windings can lead to uneven wear (e.g., less cooled windings (or portions of windings) may wear out faster). Furthermore, uneven cooling can create hot spots within the windings. These hot spots can cause localized overheating, which can lead to insulation failure and / or reduced winding life. Overheating caused by uneven cooling accelerates winding aging. Premature aging significantly shortens the expected life of the motor, resulting in more frequent maintenance or replacement (e.g., of the windings and / or the entire motor). Furthermore, uneven cooling may cause the motor to generate additional flow to adequately cool the motor windings and / or other components, thereby consuming the power resources associated with generating the additional flow (e.g., via one or more fans or pumps).

[0060] The cooling system 102 described herein enables uniform cooling of the entire motor (e.g., motor 100). For example, the cooling system 102 includes one or more baffles 104 removably coupled to the stator 112 of the motor 100. The one or more baffles 104 are configured to direct airflow toward one or more windings of the motor 100 at the "hot" end of the motor. The one or more baffles are angled toward the "cold" end of the motor. For example, the one or more baffles are angled to the airflow through the motor. The cooling system includes one or more openings 106 in the housing 108 of the motor 100 near the "hot" end of the motor 100, said openings being configured to allow airflow into or out of the housing 108.

[0061] Cooling system 102 enables uniform or equal cooling along the length of motor 100. Therefore, components of motor 100 (e.g., winding 116) are cooled relatively uniformly or equally, regardless of their location within motor 100 (e.g., regardless of which end of motor 100 winding 116 is located in). This relatively uniform or equal cooling results in more even wear of the components of motor 100 (e.g., winding 116). Consequently, components at the "hot" end of motor 100 (e.g., winding 116) are less likely to wear faster than components at the "cold" end (e.g., winding 116). Additionally, the airflow required to adequately cool the motor is reduced. This saves power that would otherwise be used to generate a stronger airflow to adequately cool motor 100 (e.g., via one or more fans or pumps).

[0062] By angled towards the "cold" end of the motor by one or more baffles, more airflow is directed toward the interior of housing 108 (e.g., more airflow toward the motor windings(one or more)) compared to flat or straight baffles. Additionally, the combination of one or more openings 106 and one or more baffles 104 promotes more efficient cooling of the motor 100. For example, one or more openings 106 allow cold air to enter housing 108, cooling the airflow that is then directed or deflected (e.g., to cool the components) by one or more baffles 104 toward the components of the motor 100 (e.g., windings 116).

Claims

1. A cooling system (102) for an electric motor (100), comprising: An air inlet (132) is located at a first end (128) of the motor (100), the air inlet being configured to provide an airflow (118) through the housing (108) of the motor (100). One or more baffles (104) removably coupled to the stator (112) of the motor (100), the one or more baffles (104) being positioned near a second end (130) of the motor (100), and the one or more baffles (104) being configured to direct the airflow (118) toward one or more windings (116) of the motor (100) at the second end (130); and One or more openings in the housing (108) of the motor (100) near the second end (130) of the motor (100), the one or more openings being configured to allow the airflow (118) to enter or exit the housing (108).

2. The cooling system (102) according to claim 1, wherein one or more baffles (104) extend toward a first end (128) of the motor (100).

3. The cooling system (102) according to any one of claims 1-2, wherein the stator (112) has a cylindrical body (142), and The one or more baffles (104) are arranged around the circumference of the cylindrical body (142).

4. The cooling system (102) according to any one of claims 1-3, wherein one or more baffles (104) extend between the inner surfaces of the stator (112) and the housing (108).

5. The cooling system (102) according to any one of claims 1-4, wherein the one or more baffles (104) are disposed behind the one or more openings (106) relative to the first end (128) of the motor (100).

6. An electric motor (100), comprising: The housing (108) includes an air inlet (132); Stator (112); One or more windings (116) are configured within the stator (112), the one or more windings (116) extending from a first end (128) of the motor (100) to a second end (130) of the motor (100), the first end (128) being close to the air inlet (132); and One or more baffles (104) extend away from the one or more windings (116) and toward the first end (128).

7. The motor (100) according to claim 6, wherein the air inlet (132) is configured to provide an airflow (118) into the housing (108), and The one or more baffles (104) are configured to direct the airflow (118) toward the one or more windings (116) at the second end (130).

8. The motor (100) according to any one of claims 6-7, wherein the housing (108) further comprises: One or more openings (106) near the second end (130).

9. The motor (100) according to claim 8, wherein the one or more baffles (104) are positioned behind the one or more openings (106) relative to the first end (128).

10. The motor (100) according to any one of claims 8-9, wherein the one or more openings (106) are a plurality of openings (106) equidistant from the periphery of the housing (108).

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