Motor cooling apparatus

Abstract

Disclosed is a motor cooling apparatus, comprising a heat exchange assembly, a cooling tank for containing a cooling liquid, and a refrigeration assembly for lowering the temperature of the cooling liquid within the cooling tank. The heat exchange assembly comprises a heat absorbing member, a heat dissipation member, and a pump body. The heat absorbing member is connected to a motor housing, the heat dissipation member is provided within the cooling tank, the heat absorbing member is provided with a heat absorbing channel, and the heat dissipation member is provided with a heat dissipation channel. The heat absorbing channel and the heat dissipation channel are in communication to form a heat exchange channel for containing cooling oil, and the pump body is used for circulating the cooling oil within the heat exchange channel. In the motor cooling apparatus in the embodiments of the present invention, the cooling oil circulates within the closed heat exchange channel without evaporation loss during circulation. In addition, the cooling oil does not produce sludge during use that would cause pipe blockages, so that the motor cooling apparatus can maintain high cooling efficiency.

Description

Motor cooling device Technical Field

[0001] This invention relates to the technical field of cooling devices, and more specifically to a motor cooling device. Background Technology

[0002] During operation, power plant motors generate a large amount of heat due to the continuous conversion of electrical energy and mechanical kinetic energy. If not cooled in time, this heat will accumulate inside the motor, causing the motor temperature to rise and affecting its normal operation.

[0003] In related technologies, power plant motors are cooled using water cooling. The principle is that a water pump continuously flows high-purity water through the hollow conductors of the stator coils, carrying away the heat generated by coil losses. After being cooled by a cooler, the cooling water returns to the water tank, completing a closed-loop cycle. However, during the circulation process, the cooling water continuously evaporates and is lost. Furthermore, the water quality deteriorates after prolonged use, leading to blockages in the cooling pipes and consequently reducing cooling efficiency. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a motor cooling device in which cooling oil circulates within a closed heat exchange channel. During the circulation process, there is no evaporation or loss, and the cooling oil does not generate dirt during use, thus preventing pipe blockage. This allows the motor cooling device to maintain high cooling efficiency.

[0006] The motor cooling device of this invention is suitable for cooling a motor. The motor includes a motor body and a motor housing. The motor cooling device includes a heat exchange component, a cooling tank for containing cooling liquid, and a refrigeration component for cooling the cooling liquid in the cooling tank. The heat exchange component includes a heat absorption element, a heat dissipation element, and a pump body. The heat absorption element is connected to the motor housing. The heat dissipation element is disposed in the cooling tank. The heat absorption element has a heat absorption channel, and the heat dissipation element has a heat dissipation channel. The heat absorption channel and the heat dissipation channel are connected to form a heat exchange channel for containing cooling oil. The pump body is used to circulate the cooling oil in the heat exchange channel.

[0007] In some embodiments, the heat-absorbing element is a heat-absorbing tube sheet, the heat-absorbing tube sheet has the heat-absorbing channel, and the two ends of the heat-absorbing channel have a first connecting port and a second connecting port respectively; the heat-dissipating element is a heat-dissipating pipe, the heat-dissipating pipe has the heat-dissipating channel, the two ends of the heat-dissipating channel have a first pipe opening and a second pipe opening respectively, the first connecting port is connected to the first pipe opening, and the second connecting port is connected to the second pipe opening.

[0008] In some embodiments, the heat absorption channel is arranged in a serpentine pattern along the circumference of the motor body; and / or the heat dissipation channel is arranged in a spiral pattern.

[0009] In some embodiments, the motor housing includes a heat sink, and the heat absorption tube is disposed on the outside of the motor housing and extends in an arc shape along the circumference of the motor body. The heat absorption tube has a groove that mates with the heat sink.

[0010] In some embodiments, there are multiple heat-absorbing tubes arranged circumferentially along the motor body, and the heat dissipation pipe corresponds one-to-one with the heat-absorbing tube.

[0011] In some embodiments, the number of heat-absorbing tubes is two, and the two heat-absorbing tubes are arranged opposite to each other on both sides of the motor housing, with the sides of the two heat-absorbing tubes that are relatively close to each other abutting against each other.

[0012] In some embodiments, the cooling tank is provided with a stirring assembly, which includes a stirring shaft and stirring blades. The stirring shaft is rotatably connected to the cooling tank, and the stirring blades are connected to the stirring shaft.

[0013] In some embodiments, the number of stirring components is multiple, and a transmission component is provided between at least two of the stirring shafts.

[0014] In some embodiments, the refrigeration assembly includes a cold-end fin, a refrigeration fin, and a hot-end fin connected in sequence, wherein the cold-end fin is disposed inside the cooling box and the hot-end fin is disposed outside the cooling box.

[0015] In some embodiments, the cooling assembly further includes a fan connected to the hot-end fins to cool the hot-end fins.

[0016] The motor cooling device of this invention is suitable for cooling power plant motors. When the power plant motor is running, the heat it generates is transferred to the motor housing. The cooling oil is driven by a pump to circulate throughout the heat exchange channel. When the cooling oil passes through the heat absorption channel, it can absorb the heat generated by the motor operation through the motor housing, causing the cooling oil temperature to rise. Since the heat dissipation components are located in the cooling tank, cooling liquid is injected into the cooling tank, and the cooling liquid is cooled by the refrigeration components, allowing the heat dissipation components to be immersed in the low-temperature cooling liquid. When the heated cooling oil passes through the heat dissipation channel, the temperature of the cooling oil is transferred to the cooling liquid in the cooling tank, causing the cooling oil temperature to drop. Thus, by circulating the cooling oil in the cooling channel, the power plant motor can be cooled down.

[0017] Compared with the cooling method using cooling water in related technologies, the motor cooling device of this invention uses cooling oil as the cooling medium for the power plant motor. The cooling liquid in the cooling tank is rapidly cooled by the refrigeration components, and the cooling liquid cools the cooling oil in the heat dissipation pipe. The cooling oil circulates in a closed heat exchange channel, and there is no evaporation or loss during the circulation process. Only the cooling oil needs to be replaced periodically to ensure the normal operation of the cooling device. Furthermore, the cooling oil will not generate dirt during use, which will cause pipe blockage, thus enabling the motor cooling device to maintain high cooling efficiency. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of a motor cooling device according to an embodiment of the present invention.

[0019] Figure 2 is a cross-sectional schematic diagram of a motor cooling device according to an embodiment of the present invention.

[0020] Figure 3 is a schematic diagram of the heat dissipation pipe of a motor cooling device according to an embodiment of the present invention.

[0021] Figure 4 is an exploded schematic diagram of the heat-absorbing tube plate of the motor cooling device according to an embodiment of the present invention and the motor.

[0022] Figure 5 is a schematic diagram of the heat dissipation pipe and stirring assembly of a motor cooling device according to an embodiment of the present invention.

[0023] Figure 6 is an exploded view of the cooling box and its internal structure of a motor cooling device according to an embodiment of the present invention.

[0024] Figure 7 is an exploded view of the refrigeration component of a motor cooling device according to an embodiment of the present invention.

[0025] Figure label:

[0026] 100. Motor cooling device;

[0027] 1. Heat exchange assembly; 11. Heat absorption tube; 111. First connecting port; 112. Second connecting port; 113. First slot; 114. Second slot; 12. Heat dissipation tube; 121. First pipe opening; 122. Second pipe opening; 13. Pump body; 14. Pipe connector;

[0028] 2. Cooling tank; 21. Tank body; 22. Tank cover; 221. Water inlet;

[0029] 3. Refrigeration components; 31. Cold end fins; 311. Groove; 32. Refrigeration element; 33. Hot end fins; 34. Fan;

[0030] 41. Base; 42. Outer shell;

[0031] 5. Mixing assembly; 51. Mixing shaft; 52. Mixing blades; 53. Mixing motor;

[0032] 6. Transmission components; 61. Drive pulley; 62. Driven pulley; 63. Belt;

[0033] 7. Protective cover;

[0034] 200, Motor; 201, Motor body; 202, Motor housing; 2021, First end face; 2022, Second end face; 203, First heat sink; 204, Second heat sink. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] As shown in Figures 1 and 2, the motor cooling device 100 of this embodiment is suitable for cooling a motor 200. The motor 200 includes a motor body 201 and a motor housing 202. The motor cooling device 100 includes a heat exchange component 1, a cooling tank 2 for containing cooling liquid, and a refrigeration component 3 for cooling the cooling liquid in the cooling tank 2. The heat exchange component 1 includes a heat absorption component, a heat dissipation component, and a pump body 13. The heat absorption component is connected to the motor housing 202, and the heat dissipation component is disposed in the cooling tank 2. The heat absorption component has a heat absorption channel, and the heat dissipation component has a heat dissipation channel. The heat absorption channel and the heat dissipation channel are connected to form a heat exchange channel for containing cooling oil. The pump body 13 is used to circulate the cooling oil in the heat exchange channel.

[0037] The motor cooling device 100 of this invention is suitable for cooling a power plant motor 200. When the power plant motor 200 is running, the heat it generates is transferred to the motor housing 202. The cooling oil is driven by the pump body 13 to circulate throughout the heat exchange channel. When the cooling oil passes through the heat absorption channel, it can absorb the heat generated by the operation of the motor 200 through the motor housing 202, causing the temperature of the cooling oil to rise. Since the heat dissipation component is located in the cooling tank 2, the cooling liquid is injected into the cooling tank 2 and the cooling liquid is cooled by the refrigeration component 3, so that the heat dissipation component can be immersed in the low-temperature cooling liquid. When the heated cooling oil passes through the heat dissipation channel, the temperature of the cooling oil is transferred to the cooling liquid in the cooling tank 2, causing the temperature of the cooling oil to drop. Thus, the cooling oil can be circulated in the cooling channel to cool the power plant motor 200.

[0038] Compared with the cooling method using cooling water in related technologies, the motor cooling device 100 of the present invention uses cooling oil as the cooling medium for the power plant motor 200. The cooling liquid in the cooling tank 2 is rapidly cooled by the refrigeration component 3, and the cooling liquid cools the cooling oil in the heat dissipation pipe 12. The cooling oil circulates in a closed heat exchange channel, and there is no evaporation or loss during the circulation process. The normal operation of the cooling device can be ensured by simply replacing the cooling oil periodically. Furthermore, the cooling oil will not generate dirt during use, which would cause pipe blockage, thereby enabling the motor cooling device 100 to maintain a high cooling efficiency.

[0039] Optionally, as shown in Figure 1, the motor cooling device 100 also includes a base 41, on which both the cooling box 2 and the motor 200 are mounted.

[0040] This improves the ease of installation of the motor 200 and the motor cooling device 100 at the construction site.

[0041] Optionally, as shown in Figure 3, the pump body 13 is a circulating pump.

[0042] Optionally, the cooling liquid in the cooling tank 2 is water.

[0043] As an example, as shown in Figures 1 and 2, the motor 200 and the refrigeration component 3 are arranged opposite each other on both sides of the cooling box 2; the cooling box 2 includes a box body 21 and a box cover 22, which are connected by bolts. The box cover 22 is located on the side of the box body 21 away from the base 41, and a water inlet 221 is provided on the box cover 22, through which water can be injected into the cooling box 2.

[0044] Of course, in other embodiments, the cooling water in the cooling box 2 can also be set as flowing water, so that the cooling component 3 can be set to cool the heat dissipation pipe 12.

[0045] In some embodiments, as shown in Figures 3 and 4, the heat-absorbing element is a heat-absorbing tube 11, which has a heat-absorbing channel. The two ends of the heat-absorbing channel have a first connecting port 111 and a second connecting port 112, respectively. The heat-dissipating element is a heat-dissipating pipe 12, which has a heat-dissipating channel. The two ends of the heat-dissipating channel have a first pipe opening 121 and a second pipe opening 122, respectively. The first connecting port 111 is connected to the first pipe opening 121, and the second connecting port 112 is connected to the second pipe opening 122.

[0046] With the above settings, the pump body 13 is placed between the first connecting port 111 and the second pipe port 122 or between the second connecting port and the second pipe port 122, which can drive the cooling oil to circulate between the heat absorption channel and the heat dissipation channel. The cooling oil carries away the heat generated by the operation of the motor 200 and transfers it to the cooling liquid in the cooling box 2, thereby achieving the cooling and temperature reduction of the power plant motor 200.

[0047] In some embodiments, as shown in Figures 3 and 4, the heat absorption channel is arranged in a serpentine pattern along the circumference of the motor body 201; and / or the heat dissipation channel is arranged in a spiral pattern.

[0048] By setting the above, the flow path of the cooling oil in the heat absorption channel and the heat dissipation channel can be increased, thereby increasing the heat absorption time of the cooling oil on the motor 200 and the heat dissipation time of the cooling oil in the cooling box 2, thereby improving the heat exchange efficiency and realizing rapid cooling of the power plant motor 200.

[0049] As shown in Figures 2 and 3, the top surface of the base 41 refers to the side of the base 41 facing the motor cooling device 100. The heat dissipation pipe 12 is arranged in a spiral shape along a direction perpendicular to the top surface of the base 41, that is, the projection of the heat dissipation pipe 12 on the top surface of the base 41 is annular. The first pipe opening 121 and the second pipe opening 122 are respectively formed at both ends of the heat dissipation pipe 12, with the first pipe opening 121 being closer to the base 41 than the second pipe opening 122. The axis of the motor 200 is parallel to the top surface of the base 41. The first connecting port 111 and the second connecting port 112 are located on the same end face of the heat absorption tube 11, with the first connecting port 111 being closer to the base 41 than the second connecting port 112. The first connecting port 111 and the first pipe opening 121 are connected through a first pipe, and the second connecting port 112 and the second pipe opening 122 are connected through a second pipe. The pump body 13 is located in the first pipe. When the pump body 13 is started, the cooling oil can circulate in the heat exchange channel.

[0050] Optionally, as shown in Figures 2 and 3, the first pipe is connected to the first pipe opening 121 via pipe connector 14, and the second pipe is connected to the second pipe opening 122 via pipe connector 14.

[0051] In some embodiments, as shown in FIG4, the motor housing 202 includes a heat sink, and a heat absorption tube 11 is disposed on the outside of the motor housing 202 and extends in an arc shape along the circumference of the motor body 201. The heat absorption tube 11 has a groove that cooperates with the heat sink.

[0052] The heat generated by the operation of the motor 200 is dissipated outward and accumulated on the heat sink. The heat sink and the heat absorption tube 11 are engaged in a slot, and the heat of the heat sink can be directly transferred to the heat absorption tube 11 and carried away by the cooling oil inside the heat absorption tube 11. By engaging the heat sink and the heat absorption tube 11 in a slot, the heat exchange efficiency of the heat absorption tube 11 can be improved, thereby achieving rapid cooling of the motor 200.

[0053] As an example, as shown in FIG4, the motor housing 202 has a first end face 2021 and a second end face 2022 arranged opposite to each other along its axial direction. The heat sink is elongated and extends along the axial direction of the motor housing 202. The heat sink is divided into two types: a first heat sink 203 and a second heat sink 204. One end of the first heat sink 203 is flush with the first end face 2021, and the other end has a gap with the second end face 2022. One end of the second heat sink 204 is flush with the second end face 2022, and the other end has a gap with the first end face 2021. There are multiple first heat sinks 203 and multiple second heat sinks 204, and the multiple first heat sinks 203 and multiple second heat sinks 204 are arranged alternately along the circumference of the motor housing 202.

[0054] The overall outline of the heat-absorbing tube 11 is arc-shaped and coaxially arranged with the motor body 201. The two end faces of the heat-absorbing tube 11 are flush with the first end face 2021 and the second end face 2022, respectively. The heat-absorbing tube 11 has a plurality of first slots 113 and a plurality of second slots 114. The first slots 113 and the second slots 114 form the aforementioned slots. The first slots 113 are open to the side facing the first end face 2021, and the second slots 114 are open to the side facing the second end face 2022. The plurality of first slots 113 and the plurality of second slots 114 are arranged alternately along the circumference of the heat-absorbing tube 11, so that the heat-absorbing tube 11 is arranged in a serpentine manner along its circumference, thereby forming a heat-absorbing channel arranged in a serpentine manner along its circumference.

[0055] The first slot 113 matches the first heat sink 203, and the second slot 114 matches the second heat sink 204. When the heat absorption tube 11 is connected to the motor housing 202, the first heat sink 203 is inserted into the first slot 113, and the second heat sink 204 is inserted into the second slot 114. Thus, when the cooling oil flows in the heat absorption channel, the heat exchange between the heat sink and the cooling oil can be realized quickly, thereby improving the heat exchange efficiency.

[0056] Optionally, the card slot may be larger than the heatsink.

[0057] This makes it easier to connect the heat absorption tube 11 to the motor housing 202.

[0058] Optionally, as shown in Figures 2 and 3, the motor cooling device 100 further includes a housing 42, which is sleeved on the outside of the heat sink and heat absorption tube 11 and is detachably connected to the base 41 via a support.

[0059] This ensures a stable connection between the motor cooling device 100 and the motor 200, guaranteeing the smooth operation of both the motor 200 and the cooling device.

[0060] In some embodiments, as shown in FIG3, there are multiple heat-absorbing tubes 11, which are arranged sequentially along the circumference of the motor body 201, and the heat dissipation tubes 12 correspond one-to-one with the heat-absorbing tubes 11.

[0061] Multiple heat-absorbing tubes 11 and multiple heat dissipation components can form multiple heat exchange channels. The temperature of the cooling oil gradually increases as the path length increases. If only one heat exchange channel is set, the cooling oil has a long flow path in the heat-absorbing channel, resulting in a very uneven temperature distribution of the cooling oil along the circumference of the motor 200. After the cooling oil temperature rises, the heat exchange efficiency is poor. By setting multiple heat exchange channels, the circulation time of the cooling oil in a single heat exchange channel is shorter. After the cooling oil temperature rises, it immediately enters the heat dissipation channel for heat dissipation, thereby further improving the heat exchange efficiency of the heat-absorbing tubes 11.

[0062] In addition, by setting multiple heat-absorbing tubes 11, which are wrapped around the motor 200, the heat-absorbing tubes 11 can approach the motor 200 radially to achieve the cooperation between the slot and the heat sink, thereby improving the ease of installation of the heat-absorbing tubes 11.

[0063] In some embodiments, as shown in FIG4, there are two heat-absorbing tubes 11, which are arranged opposite to each other on both sides of the motor housing 202, and the two heat-absorbing tubes 11 abut against each other on the side that is closest to each other.

[0064] With the above settings, the two heat absorption tubes 11 can completely wrap around the motor 200 along the circumference of the motor 200, thereby achieving all-round cooling of the power plant motor 200 and improving the cooling speed of the power plant motor 200.

[0065] As an example, as shown in Figures 2 and 4, the heat absorption tube 11 is semi-cylindrical. When two heat absorption tubes 11 are aligned, they can form a complete cylinder that wraps around the motor 200. That is, the cooling oil can completely wrap around the motor 200 along the circumference of the motor 200, thereby achieving all-round cooling of the power plant motor 200.

[0066] As shown in Figures 2 and 5, there are also two heat dissipation pipes 12. Both heat dissipation pipes 12 are located inside the cooling box 2. The two heat dissipation pipes 12 are respectively connected to two heat absorption tubes 11 to form two heat exchange channels.

[0067] In some embodiments, as shown in Figures 5 and 6, a stirring assembly 5 is provided inside the cooling box 2. The stirring assembly 5 includes a stirring shaft 51 and a stirring blade 52. The stirring shaft 51 is rotatably connected to the cooling box 2, and the stirring blade 52 is connected to the stirring shaft 51.

[0068] It is known that when the heat exchanger 12 exchanges heat with the water in the cooling tank 2, the water near the heat exchanger 12 is at a higher temperature than the water in the cooling tank 2 that is further away from the heat exchanger 12. By rotating the stirring blade 52 driven by the stirring shaft 51, the water in the cooling tank 2 can be agitated, so that the water around the heat exchanger 12 can be mixed with the water at the edge of the cooling tank 2, thereby achieving sufficient cooling of the cooling oil in the heat exchanger 12 and improving the cooling efficiency of the motor 200.

[0069] As an example, as shown in Figures 5 and 6, the axial direction of the stirring shaft 51 is arranged perpendicular to the top surface of the base 41. Multiple sets of stirring blades 52 are provided, and the multiple sets of stirring blades 52 are evenly arranged along the axial direction of the stirring shaft 51. The number of stirring blades 52 in each set is multiple, and the multiple stirring blades 52 in the same set are evenly arranged along the circumference of the stirring shaft 51. Thus, the stirring shaft 51 can drive the multiple sets of stirring blades 52 to rotate, thereby achieving thorough mixing of the water.

[0070] Optionally, as shown in Figures 2 and 6, a stirring motor 53 is provided on the outside of the cover 22, and the output end of the stirring motor 53 is connected to the stirring shaft 51.

[0071] Therefore, starting the stirring motor 53 can control the stirring shaft 51 to rotate automatically, which is more convenient.

[0072] Optionally, at least one heat dissipation pipe 12 is arranged in a spiral shape along the axial direction of the stirring shaft 51.

[0073] Therefore, the stirring blade 52 stirs the water inside the spiral area formed by the heat dissipation pipe 12, which is more conducive to the water near the heat dissipation pipe 12 being fully mixed with the water in other parts of the cooling tank 2.

[0074] In some embodiments, the number of stirring components 5 is multiple, and a transmission component 6 is provided between at least two stirring shafts 51.

[0075] By setting multiple stirring components 5, the water in the cooling tank 2 can be fully mixed; by setting a transmission component 6, multiple stirring shafts 51 can be rotated synchronously, that is, multiple stirring components 5 can be controlled to work synchronously, improving the ease of operation of the stirring components 5.

[0076] As an example, as shown in Figures 5 and 6, there are two stirring components 5, which are respectively located inside the spiral area formed by the two heat dissipation pipes 12. The stirring shafts 51 of the two stirring components 5 are parallel to each other, and both stirring shafts 51 pass through the cover 22 and are rotatably connected to the cover 22. The transmission component 6 is located on the outside of the cover 22. The transmission component 6 includes a driving pulley 61, two driven pulleys 62, and two belts 63. The driving pulley 61 is connected to the output end of the stirring motor 53, and the stirring motor 53 can drive the driving pulley 61 to rotate. The two driven pulleys 62 are respectively fitted onto the two stirring shafts 51 and rotate synchronously with the stirring shafts 51. The two driven pulleys 62 are respectively connected to the driving pulley 61 through the two belts 63. The driving pulley 61 is a double-groove belt pulley 63. Thus, the rotation of the driving pulley 61 can drive the two driven pulleys 62 to rotate. In other words, the stirring motor 53 can drive the two stirring shafts 51 to rotate simultaneously.

[0077] As shown in Figures 1 and 2, a protective cover 7 is bolted to the outside of the box cover 22. The protective cover 7 covers the stirring motor 53 and the transmission assembly 6, and can protect the stirring motor 53 and the transmission assembly 6.

[0078] In some embodiments, as shown in Figures 6 and 7, the refrigeration assembly 3 includes a cold end fin 31, a refrigeration plate 32, and a hot end fin 33 connected in sequence. The cold end fin 31 is disposed inside the cooling box 2, and the hot end fin 33 is disposed outside the cooling box 2.

[0079] With the above settings, the cooling element 32 can introduce cold energy into the water in the cooling tank 2 through the cold end fins 31, and the hot end fins 33 can release heat to the surrounding environment, thereby achieving cooling of the water in the cooling tank 2.

[0080] Optionally, the refrigeration element 32 is a semiconductor refrigeration element.

[0081] In some embodiments, as shown in Figures 6 and 7, the cooling assembly 3 further includes a fan 34 connected to the hot end fins 33 to cool the hot end fins 33.

[0082] By setting up a fan 34, the heat from the hot end fins 33 can be quickly released to the external environment, thereby improving the working efficiency of the cooling component 3.

[0083] As an example, as shown in Figures 6 and 7, the cooling box 2 has an installation port on the side away from the motor 200, and the cold end fin 31 passes through the installation port, so that one end of the cold end fin 31 is immersed in water; the side of the cold end fin 31 facing the hot end fin 33 has a groove 311, and the cooling plate 32 is disposed in the groove 311, and the hot end fin 33 is fitted with the cold end fin 31; the fan 34 is disposed on the side of the hot end fin 33 away from the cold end fin 31, and the fan 34 is detachably connected to the cold end fin 31 by bolts, thereby enabling the assembly of the cooling component 3.

[0084] In the description of this invention, it should 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," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0087] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A motor cooling device (100), characterized in that, Suitable for cooling a motor (200), the motor (200) includes a motor body (201) and a motor housing (202). The motor cooling device (100) includes a heat exchange component (1), a cooling tank (2) for containing cooling liquid, and a refrigeration component (3) for cooling the cooling liquid in the cooling tank (2). The heat exchange component (1) includes a heat absorber, a heat dissipator, and a pump body (13). The heat absorber is connected to the motor housing (202). The heat dissipator is located in the cooling tank (2). The heat absorber has a heat absorption channel, and the heat dissipator has a heat dissipation channel. The heat absorption channel and the heat dissipation channel are connected to form a heat exchange channel for containing cooling oil. The pump body (13) is used to circulate the cooling oil in the heat exchange channel.

2. The motor cooling device (100) according to claim 1, characterized in that, The heat-absorbing element is a heat-absorbing tube (11), the heat-absorbing tube (11) has the heat-absorbing channel, and the two ends of the heat-absorbing channel have a first connecting port (111) and a second connecting port (112) respectively. The heat dissipation component is a heat dissipation pipe (12), which has the heat dissipation channel. The two ends of the heat dissipation channel have a first pipe opening (121) and a second pipe opening (122), respectively. The first connecting port (111) is connected to the first pipe opening (121), and the second connecting port (112) is connected to the second pipe opening (122).

3. The motor cooling device (100) according to claim 2, characterized in that, The heat absorption channel is arranged in a serpentine pattern along the circumference of the motor body (201); and / or The heat dissipation channels are arranged in a spiral shape.

4. The motor cooling device (100) according to claim 2, characterized in that, The motor housing (202) includes a heat sink, and the heat absorption tube (11) is located on the outside of the motor housing (202) and extends in an arc shape along the circumference of the motor body (201). The heat absorption tube (11) has a slot that cooperates with the heat sink.

5. The motor cooling device (100) according to claim 2, characterized in that, The number of heat-absorbing tubes (11) is multiple, and the multiple heat-absorbing tubes (11) are arranged circumferentially along the motor body (201). The heat dissipation tube (12) corresponds one-to-one with the heat-absorbing tubes (11).

6. The motor cooling device (100) according to claim 5, characterized in that, The number of heat-absorbing tubes (11) is two, and the two heat-absorbing tubes (11) are arranged opposite to each other on both sides of the motor housing (202), and the two heat-absorbing tubes (11) are in contact with each other on the side that is closest to each other.

7. The motor cooling device (100) according to claim 1, characterized in that, The cooling box (2) is equipped with a stirring assembly (5), which includes a stirring shaft (51) and a stirring blade (52). The stirring shaft (51) is rotatably connected to the cooling box (2), and the stirring blade (52) is connected to the stirring shaft (51).

8. The motor cooling device (100) according to claim 7, characterized in that, The number of stirring components (5) is multiple, and a transmission component (6) is provided between at least two of the stirring shafts (51).

9. The motor cooling device (100) according to claim 1, characterized in that, The refrigeration assembly (3) includes a cold end fin (31), a refrigeration plate (32), and a hot end fin (33) connected in sequence. The cold end fin (31) is located inside the cooling box (2), and the hot end fin (33) is located outside the cooling box (2).

10. The motor cooling device (100) according to claim 9, characterized in that, The cooling component (3) also includes a fan (34) connected to the hot end fins (33) to cool the hot end fins (33).

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