Motor cooling device

Abstract

A motor cooling device disclosed by the present invention comprises a heat exchange assembly, a cooling box used for accommodating a cooling liquid and a refrigeration assembly used for cooling the cooling liquid in the cooling box, the heat exchange assembly comprises a heat absorption piece, a heat dissipation piece and a pump body, the heat absorption piece is connected with a motor shell, the heat dissipation piece is arranged in the cooling box, the heat absorption piece is provided with a heat absorption channel, and the pump body is arranged in the heat absorption channel. The heat dissipation piece is provided with a heat dissipation channel, the heat absorption channel and the heat dissipation channel are communicated to form a heat exchange channel used for containing cooling oil, and the pump body is used for enabling the cooling oil in the heat exchange channel to flow circularly. According to the motor cooling device provided by the embodiment of the invention, the cooling oil circulates in the closed heat exchange channel, the phenomenon of evaporation loss does not occur in the circulation process, and meanwhile, the cooling oil does not generate dirt to cause pipeline blockage in the use process, so that the motor cooling device can keep relatively high cooling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of cooling devices, and in particular to a motor cooling device. Background Art

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

[0003] In the related art, the motors in power plants are cooled by water. The principle is to use a water pump to make a continuous high-purity water flow through the hollow wire of the stator coil to take away the heat generated by the coil loss. The cooling water is cooled by the cooler and then returns to the water tank to complete a closed cycle. However, the cooling water is constantly evaporated and lost during the circulation process. In addition, the water quality of the cooling water will deteriorate after long-term use, causing the cooling pipe to be blocked, which in turn leads to reduced cooling efficiency. Summary of the invention

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

[0005] To this end, an embodiment of the present invention proposes a motor cooling device, in which cooling oil circulates in a closed heat exchange channel, and no evaporation loss occurs during the circulation process. At the same time, the cooling oil will not generate dirt during use to cause pipeline blockage, thereby enabling the motor cooling device to maintain a high cooling efficiency.

[0006] The motor cooling device of the embodiment of the present invention is suitable for cooling the motor, the motor includes a motor body and a motor housing, the motor cooling device includes a heat exchange component, a cooling box for accommodating cooling liquid and a refrigeration component for cooling the cooling liquid in the cooling box, the heat exchange component includes a heat absorbing part, a heat dissipating part and a pump body, the heat absorbing part is connected to the motor housing, the heat dissipating part is arranged in the cooling box, the heat absorbing part has a heat absorbing channel, the heat dissipating part has a heat dissipating channel, the heat absorbing channel and the heat dissipating channel are connected to form a heat exchange channel for accommodating cooling oil, and the pump body is used to circulate the cooling oil in the heat exchange channel.

[0007] In some embodiments, the heat absorption component is a heat absorption tube sheet, the heat absorption tube sheet has the heat absorption channel, and the two ends of the heat absorption channel respectively have a first connecting port and a second connecting port; the heat dissipation component is a heat dissipation pipe, the heat dissipation pipe has the heat dissipation channel, and the two ends of the heat dissipation channel respectively have a first pipe opening and a second pipe opening, 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 shape along the circumference of the motor body; and / or the heat dissipation channel is arranged in a spiral shape.

[0009] In some embodiments, the motor housing includes a heat sink, the heat absorbing pipe sheet is arranged on the outside of the motor housing and extends in an arc shape along the circumference of the motor body, and the heat absorbing pipe sheet has a slot that cooperates with the heat sink.

[0010] In some embodiments, there are multiple heat absorbing tube sheets, and the multiple heat absorbing tube sheets are arranged along the circumference of the motor body, and the heat dissipation pipes correspond to the heat absorbing tube sheets one by one.

[0011] In some embodiments, the number of the heat absorbing tube sheets is two, the two heat absorbing tube sheets are arranged opposite to each other on two sides of the motor housing, and the relatively close sides of the two heat absorbing tube sheets abut against each other.

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

[0013] In some embodiments, there are multiple stirring components, 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, the cold-end fin is arranged in the cooling box, and the hot-end fin is arranged outside the cooling box.

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

[0016] The motor cooling device implemented in the present invention is suitable for cooling the motor of a power plant. When the motor of the power plant is running, the heat generated by it is transferred to the motor housing. The cooling oil is driven by the pump body to circulate in the entire heat exchange channel. When the cooling oil passes through the heat absorption channel, the heat generated by the motor operation can be absorbed by the motor housing, so that the temperature of the cooling oil increases. Since the heat sink is arranged in the cooling box, cooling liquid is injected into the cooling box, and the cooling liquid is cooled by the refrigeration component, the heat sink 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 box, so that the temperature of the cooling oil is reduced. Therefore, the cooling of the motor of the power plant can be achieved by the circulation of the cooling oil in the cooling channel.

[0017] Compared with the cooling method using cooling water in the related art, the motor cooling device implemented in the present invention uses cooling oil as the cooling medium of the power plant motor, quickly cools the cooling liquid in the cooling box through the refrigeration component, and cools the cooling oil in the heat dissipation pipe through the cooling liquid. The cooling oil circulates in the closed heat exchange channel, and there is no evaporation loss during the circulation process. It only needs to replace the cooling oil regularly to ensure the normal operation of the cooling device; and the cooling oil will not generate dirt during use to cause pipeline blockage, so that the motor cooling device can maintain a high cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0021] Figure 4 The diagram is an exploded view of a heat absorbing tube sheet and a motor of a motor cooling device according to an embodiment of the present invention.

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

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

[0024] Figure 7 The figure is an exploded schematic diagram of a refrigeration assembly of a motor cooling device according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] 100. Motor cooling device;

[0027] 1. heat exchange assembly; 11. heat absorbing tube sheet; 111. first communication port; 112. second communication port; 113. first card slot; 114. second card slot; 12. heat dissipation pipe; 121. first pipe port; 122. second pipe port; 13. pump body; 14. pipe joint;

[0028] 2. Cooling box; 21. Box body; 22. Box cover; 221. Water inlet;

[0029] 3. Refrigeration assembly; 31. Cold end fin; 311. Groove; 32. Refrigeration fin; 33. Hot end fin; 34. Fan;

[0030] 41. base; 42. housing;

[0031] 5. stirring assembly; 51. stirring shaft; 52. stirring blade; 53. stirring motor;

[0032] 6. Transmission assembly; 61. Driving pulley; 62. Driven pulley; 63. Belt;

[0033] 7. Protective cover;

[0034] 200, motor; 201, motor body; 202, motor housing; 2021, first end surface; 2022, second end surface; 203, first heat sink; 204, second heat sink. DETAILED DESCRIPTION

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

[0036] like Figure 1 and Figure 2 As shown, the motor cooling device 100 of the embodiment of the present invention is suitable for cooling the 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 box 2 for accommodating cooling liquid, and a refrigeration component 3 for cooling the cooling liquid in the cooling box 2. The heat exchange component 1 includes a heat absorbing element, a heat dissipating element and a pump body 13. The heat absorbing element is connected to the motor housing 202, and the heat dissipating element is arranged in the cooling box 2. The heat absorbing element has a heat absorbing channel, and the heat dissipating element has a heat dissipating channel. The heat absorbing channel and the heat dissipating channel are connected to form a heat exchange channel for accommodating cooling oil. The pump body 13 is used to circulate the cooling oil in the heat exchange channel.

[0037] The motor cooling device 100 implemented in the present invention is suitable for cooling the motor 200 of a power plant. When the motor 200 of the power plant is running, the heat generated by it is transferred to the motor housing 202; the cooling oil is driven by the pump body 13 to circulate in the entire 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, so that the temperature of the cooling oil increases; because the heat sink is arranged in the cooling box 2, cooling liquid is injected into the cooling box 2, and the cooling liquid is cooled by the refrigeration component 3, the heat sink can be immersed in the low-temperature cooling liquid, and 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 box 2, so that the temperature of the cooling oil is reduced; thus, the cooling of the motor 200 of the power plant can be achieved by circulating the cooling oil in the cooling channel.

[0038] Compared with the cooling method using cooling water in the related art, the motor cooling device 100 implemented in the present invention uses cooling oil as the cooling medium of the power plant motor 200, and quickly cools the cooling liquid in the cooling box 2 through the refrigeration component 3, and cools the cooling oil in the heat pipe 12 through the cooling liquid. The cooling oil circulates in the closed heat exchange channel, and there is no evaporation loss during the circulation process. It only needs to replace the cooling oil regularly to ensure the normal operation of the cooling device; and the cooling oil will not generate dirt during use to cause pipeline blockage, so that the motor cooling device 100 can maintain a high cooling efficiency.

[0039] Alternatively, if Figure 1 As shown, the motor cooling device 100 further includes a base 41 , and the cooling box 2 and the motor 200 are both mounted on the base 41 .

[0040] Thus, the convenience of installing the motor 200 and the motor cooling device 100 at the construction site can be improved.

[0041] Alternatively, if Figure 3 As shown, the pump body 13 is a circulation pump.

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

[0043] As an example, Figure 1 and Figure 2 As shown, the motor 200 and the refrigeration assembly 3 are arranged relatively on both sides of the cooling box 2; the cooling box 2 includes a box body 21 and a box cover 22, the box body 21 and the box cover 22 are connected by bolts, the box cover 22 is arranged on the side of the box body 21 away from the base 41, and a water injection port 221 is provided on the box cover 22, and water can be injected into the cooling box 2 through the water injection port 221.

[0044] Of course, in other embodiments, the cooling water in the cooling box 2 may also be running water, so that the cooling of the heat dissipation pipe 12 can be achieved without providing the refrigeration assembly 3 .

[0045] In some embodiments, Figure 3 and Figure 4 As shown, the heat absorbing component is a heat absorbing tube sheet 11, which has a heat absorbing channel, and the two ends of the heat absorbing channel respectively have a first connecting port 111 and a second connecting port 112; the heat dissipating component is a heat dissipating tube 12, which has a heat dissipating channel, and the two ends of the heat dissipating channel respectively have a first pipe opening 121 and a second pipe opening 122, 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] Through the above arrangement, the pump body 13 is arranged between the first connecting port 111 and the second pipe port 122 or between the second connecting port and the second pipe port 122, so that the cooling oil can be driven to circulate between the heat absorption channel and the heat dissipation channel, and the heat generated by the operation of the motor 200 is taken away by the cooling oil and transferred to the cooling liquid in the cooling box 2, thereby realizing the cooling of the power plant motor 200.

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

[0048] Through the above settings, 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 for the motor 200 and the heat dissipation time of the cooling oil in the cooling box 2, thereby improving the heat exchange efficiency and achieving rapid cooling of the power plant motor 200.

[0049] like Figure 2 and Figure 3 As shown, 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 in a circular ring shape, the first pipe opening 121 and the second pipe opening 122 are respectively formed at both ends of the heat dissipation pipe 12, and the first pipe opening 121 is 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 arranged on the same end surface of the heat absorbing tube sheet 11, and the first connecting port 111 is closer to the base 41 than the second connecting port 112; the first connecting port 111 and the first pipe opening 121 are connected by a first pipeline, the second connecting port 112 and the second pipe opening 122 are connected by a second pipeline, and the pump body 13 is arranged in the first pipeline; start the pump body 13, and the cooling oil can circulate in the heat exchange channel.

[0050] Alternatively, if Figure 2 and Figure 3 As shown, the first pipeline is connected to the first pipe opening 121 through the pipe joint 14 , and the second pipeline is connected to the second pipe opening 122 through the pipe joint 14 .

[0051] In some embodiments, Figure 4 As shown, the motor housing 202 includes a heat sink, and the heat absorbing pipe sheet 11 is arranged on the outside of the motor housing 202 and extends in an arc shape along the circumference of the motor body 201. The heat absorbing pipe sheet 11 has a slot 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 cooperates with the slots on the heat absorbing tube sheet 11. The heat of the heat sink can be directly transferred to the heat absorbing tube sheet 11 and taken away by the cooling oil inside the heat absorbing tube sheet 11. By cooperating between the heat sink and the slots of the heat absorbing tube sheet 11, the heat exchange efficiency of the heat absorbing tube sheet 11 can be improved, thereby achieving rapid cooling of the motor 200.

[0053] As an example, Figure 4 As shown, 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 in the shape of an elongated strip and extends along the axial direction of the motor housing 202. The heat sink is divided into two types, namely, 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. The number of the first heat sink 203 and the second heat sink 204 are both multiple, and the multiple first heat sinks 203 and the multiple second heat sinks 204 are alternately arranged in sequence along the circumference of the motor housing 202.

[0054] The overall contour of the heat absorbing tube sheet 11 is in an arc shape and is arranged coaxially with the motor body 201. The two end surfaces of the heat absorbing tube sheet 11 are flush with the first end surface 2021 and the second end surface 2022 respectively; the heat absorbing tube sheet 11 has a plurality of first card grooves 113 and a plurality of second card grooves 114, and the first card grooves 113 and the second card grooves 114 form the above-mentioned card grooves. The first card groove 113 is opened toward one side of the first end surface 2021, and the second card groove 114 is opened toward one side of the second end surface 2022. The plurality of first card grooves 113 and the plurality of second card grooves 114 are alternately arranged in sequence along the circumference of the heat absorbing tube sheet 11, so that the heat absorbing tube sheet 11 is arranged in a serpentine shape along its circumference, thereby forming a heat absorption channel arranged in a serpentine shape 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 absorbing tube sheet 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 absorbing channel, heat exchange between the heat sink and the cooling oil can be quickly achieved, thereby improving the heat exchange efficiency.

[0056] Optionally, the size of the card slot is larger than the size of the heat sink.

[0057] This is more conducive to the connection between the heat absorbing tube sheet 11 and the motor housing 202 .

[0058] Alternatively, if Figure 2 and Figure 3As shown, the motor cooling device 100 further includes a housing 42 , which is sleeved on the outside of the heat sink and the heat absorbing tube sheet 11 , and is detachably connected to the base 41 via a support.

[0059] Thus, a stable connection between the motor cooling device 100 and the motor 200 can be achieved, thereby ensuring the smooth operation of the motor 200 and the cooling device.

[0060] In some embodiments, Figure 3 As shown, there are multiple heat absorbing tube sheets 11 , which are arranged in sequence along the circumference of the motor body 201 , and the heat dissipation pipes 12 correspond to the heat absorbing tube sheets 11 one by one.

[0061] Multiple heat-absorbing tube sheets 11 and multiple heat sinks can form multiple heat exchange channels; the temperature of the cooling oil gradually increases as the path increases. If only one heat exchange channel is set, the path of the cooling oil flowing in the heat-absorbing channel is longer, 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, and 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 tube sheet 11.

[0062] In addition, by setting up multiple heat absorbing tube sheets 11, the multiple heat absorbing tube sheets 11 are wrapped around the motor 200, and the heat absorbing tube sheets 11 can be close to the motor 200 along the radial direction of the motor 200 to achieve the cooperation between the slot and the heat sink, thereby improving the installation convenience of the heat absorbing tube sheets 11.

[0063] In some embodiments, Figure 4 As shown, there are two heat absorbing tube sheets 11 , which are arranged oppositely on two sides of the motor housing 202 , and the relatively close sides of the two heat absorbing tube sheets 11 abut against each other.

[0064] Through the above arrangement, the two heat absorbing tube sheets 11 can completely wrap 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, Figure 2 and Figure 4 As shown, the heat absorbing tube sheet 11 is semi-cylindrical, and two heat absorbing tube sheets 11 can be aligned to form a complete cylinder wrapped around the motor 200, that is, the cooling oil can completely wrap the motor 200 along the circumference of the motor 200, thereby achieving all-round cooling of the motor 200 in the power plant.

[0066] like Figure 2 and Figure 5As shown, the number of the heat dissipation pipes 12 is also two, and both heat dissipation pipes 12 are arranged in the cooling box 2. The two heat dissipation pipes 12 are respectively connected to the two heat absorbing tube sheets 11 to form two heat exchange channels.

[0067] In some embodiments, Figure 5 and Figure 6 As shown, a stirring assembly 5 is provided in the cooling box 2 , and the stirring assembly 5 includes a stirring shaft 51 and stirring blades 52 . The stirring shaft 51 is rotatably connected to the cooling box 2 , and the stirring blades 52 are connected to the stirring shaft 51 .

[0068] It is known that when the heat pipe 12 exchanges heat with the water in the cooling box 2, the temperature of the water near the heat pipe 12 is higher than that of the water in the cooling box 2 far away from the heat pipe 12; by driving the stirring blade 52 to rotate by the stirring shaft 51, the water in the cooling box 2 can be driven to shake, so that the water around the heat pipe 12 can be mixed with the water at the edge position of the cooling box 2, thereby achieving sufficient cooling of the cooling oil in the heat pipe 12, thereby improving the cooling efficiency of the motor 200.

[0069] As an example, Figure 5 and Figure 6 As shown, the axial direction of the stirring shaft 51 is arranged perpendicular to the top surface of the base 41, and a plurality of stirring blades 52 are provided. The plurality of stirring blades 52 are evenly arranged along the axial direction of the stirring shaft 51. The number of stirring blades 52 in each group is multiple, and the plurality of stirring blades 52 in the same group are evenly arranged along the circumference of the stirring shaft 51. Thus, the plurality of stirring blades 52 can be driven to rotate by the stirring shaft 51 to achieve sufficient mixing of the water body.

[0070] Alternatively, if Figure 2 and Figure 6 As shown, a stirring motor 53 is provided on the outer side of the box 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] Thus, the stirring blades 52 stir the inside of the spiral region formed by the heat dissipation pipe 12 , which is more conducive to fully mixing the water near the heat dissipation pipe 12 with the water at other locations in the cooling box 2 .

[0074] In some embodiments, there are multiple stirring components 5 , and a transmission component 6 is disposed between at least two stirring shafts 51 .

[0075] By providing a plurality of stirring components 5, the water in the cooling box 2 can be fully mixed; by providing a transmission component 6, a plurality of stirring shafts 51 can be made to rotate synchronously, that is, the plurality of stirring components 5 can be controlled to work synchronously, thereby improving the convenience of operation of the stirring components 5.

[0076] As an example, Figure 5 and Figure 6 As shown, there are two stirring components 5, and the two stirring components 5 are respectively arranged inside the spiral area formed by the two heat dissipation pipes 12, and the stirring shafts 51 of the two stirring components 5 are parallel to each other. The two stirring shafts 51 are both penetrated through the box cover 22 and are rotatably connected to the box cover 22; the transmission component 6 is arranged on the outer side of the box cover 22, and 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 driving pulley 61 can be driven to rotate by the stirring motor 53; the two driven pulleys 62 are respectively mounted on the two stirring shafts 51 and rotate synchronously with the stirring shaft 51, and the two driven pulleys 62 are respectively connected to the driving pulley 61 through two belts 63, and the driving pulley 61 is a double-groove belt 63 wheel; therefore, the rotation of the driving pulley 61 can drive the two driven pulleys 62 to rotate. In other words, the two stirring shafts 51 can be driven to rotate at the same time by the stirring motor 53.

[0077] like Figure 1 and Figure 2 As shown, a protective cover 7 is connected to the outer side of the box cover 22 by bolts. The protective cover 7 is provided to cover the stirring motor 53 and the transmission assembly 6 to protect the stirring motor 53 and the transmission assembly 6.

[0078] In some embodiments, Figure 6 and Figure 7 As shown, the refrigeration assembly 3 includes a cold end fin 31 , a refrigeration fin 32 and a hot end fin 33 which are connected in sequence. The cold end fin 31 is arranged in the cooling box 2 , and the hot end fin 33 is arranged outside the cooling box 2 .

[0079] Through the above arrangement, the operation of the refrigeration fin 32 can introduce cold energy into the water in the cooling box 2 through the cold end fin 31 , and the hot end fin 33 can release heat to the surrounding environment, thereby cooling the water in the cooling box 2 .

[0080] Optionally, the cooling fin 32 is a semiconductor cooling fin.

[0081] In some embodiments, Figure 6 and Figure 7 As shown, the refrigeration assembly 3 further includes a fan 34 , which is connected to the hot end fins 33 to cool the hot end fins 33 .

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

[0083] As an example, Figure 6 and Figure 7 As shown, the cooling box 2 has an installation opening on the side away from the motor 200, and the cold end fin 31 is inserted into the installation opening so that one end of the cold end fin 31 is immersed in the water body; the cold end fin 31 has a groove 311 on the side facing the hot end fin 33, and the cooling fin 32 is arranged in the groove 311, and the hot end fin 33 is arranged in close contact with the cold end fin 31; the fan 34 is arranged 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, so that the assembly of the refrigeration component 3 can be realized.

[0084] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0085] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0086] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0088] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0089] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A motor cooling device (100), characterized in that: The motor (200) is suitable for cooling a motor (200), wherein the motor (200) comprises a motor body (201) and a motor housing (202), wherein the motor cooling device (100) comprises a heat exchange component (1), a cooling box (2) for containing cooling liquid, and a refrigeration component (3) for cooling the cooling liquid in the cooling box (2), wherein the heat exchange component (1) comprises a heat absorbing element, a heat dissipating element, and a pump body (13), wherein the heat absorbing element is connected to the motor housing (202), wherein the heat dissipating element is arranged in the cooling box (2), wherein the heat absorbing element has a heat absorbing channel, wherein the heat dissipating element has a heat dissipating channel, wherein the heat absorbing channel and the heat dissipating channel are connected to form a heat exchange channel for containing cooling oil, and wherein 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 component is a heat absorbing tube sheet (11), the heat absorbing tube sheet (11) has the heat absorbing channel, and the two ends of the heat absorbing channel respectively have a first connecting port (111) and a second connecting port (112); The heat sink is a heat dissipation pipe (12), the heat dissipation pipe (12) having the heat dissipation channel, the two ends of the heat dissipation channel respectively having a first pipe opening (121) and a second pipe opening (122), the first communication opening (111) being in communication with the first pipe opening (121), and the second communication opening (112) being in communication with the second pipe opening (122).

3. The motor cooling device (100) according to claim 2, characterized in that: The heat absorption channels are arranged in a serpentine shape 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) comprises a heat sink, the heat absorbing pipe sheet (11) is arranged on the outside of the motor housing (202) and extends in an arc shape along the circumference of the motor body (201), and the heat absorbing pipe sheet (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 the heat absorbing pipe sheets (11) is multiple, and the multiple heat absorbing pipe sheets (11) are arranged along the circumference of the motor body (201), and the heat dissipation pipes (12) correspond to the heat absorbing pipe sheets (11) one by one.

6. The motor cooling device (100) according to claim 5, characterized in that: The number of the heat absorbing tube sheets (11) is two, and the two heat absorbing tube sheets (11) are arranged oppositely on two sides of the motor housing (202), and the relatively close sides of the two heat absorbing tube sheets (11) abut against each other.

7. The motor cooling device (100) according to claim 1, characterized in that: A stirring assembly (5) is provided in the cooling box (2), and the stirring assembly (5) comprises 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: There are multiple stirring assemblies (5), and a transmission assembly (6) is provided between at least two stirring shafts (51).

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

10. The motor cooling device (100) according to claim 9, characterized in that: The refrigeration component (3) further comprises a fan (34), wherein the fan (34) is connected to the hot end fins (33) to cool the hot end fins (33).

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