Radiator, motor and machining method of motor

Abstract

The invention is suitable for the technical field of heat dissipation, and provides a radiator, a motor and a machining method of the motor, and the radiator comprises a first connecting structure, a heat dissipation assembly and a second connecting structure. The first connecting structure extends in the circumferential direction and is used for surrounding the periphery of the motor shell. The heat dissipation assembly comprises a plurality of heat dissipation fins. The plurality of cooling fins are arranged on the first connecting structure at intervals in the circumferential direction so as to surround the periphery of the motor shell. The second connecting structure is arranged on the plurality of cooling fins so as to fixedly connect the plurality of cooling fins. Through the arrangement, the thickness of the cooling fins can be reduced, and the number of the cooling fins can be increased under the condition that the distance between every two adjacent cooling fins in the circumferential direction is preset, so that the heat dissipation area of all the cooling fins is increased, namely the heat dissipation area of the heat dissipation assembly is increased, the heat dissipation effect of the heat dissipation device is improved, the heat dissipation effect of the motor is improved, and the service life of the motor is prolonged. And the service life of the motor is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of heat dissipation technology, and more specifically, to a heat sink, a motor, and a method for processing the motor. Background Art

[0002] A motor, also known as an electric motor, is a device that converts electrical energy into mechanical energy. A motor generally consists of a rotor and a stator. The motor uses the energized coil on the stator to generate a rotating magnetic field and act on the rotor to form a magneto-electrical rotation torque.

[0003] In the related art, the motor generally generates a large amount of heat during operation, but it is difficult for the motor to quickly dissipate the generated heat during operation, causing the motor to easily stop working when overheated, affecting the motor's performance and life. Summary of the invention

[0004] In view of the above problems, the embodiments of the present application provide a heat sink, a motor and a method for processing the motor, which can improve the technical problem of poor heat dissipation effect of the motor.

[0005] In a first aspect, an embodiment of the present application provides a heat sink, comprising:

[0006] A first connection structure is arranged to extend in the circumferential direction and is used to surround the outer circumference of the motor housing;

[0007] The heat dissipation assembly includes a plurality of heat dissipation fins; the plurality of heat dissipation fins are arranged on the first connection structure at intervals along the circumferential direction so as to surround the outer circumference of the motor housing;

[0008] The second connection structure is arranged on the plurality of heat sinks to fix the plurality of heat sinks together.

[0009] In some embodiments, the thickness of the heat sink is [0.05 mm, 0.5 mm].

[0010] In some embodiments, the first connection structure and the second connection structure are respectively disposed at two ends of the heat sink along the radial direction.

[0011] In some embodiments, any two adjacent heat sinks and the first connection structure and the second connection structure are arranged to form a heat dissipation space, and a window is provided on the second connection structure, and the window is connected to one end of the heat dissipation space along the radial direction.

[0012] In some embodiments, the second connection structure is provided with a plurality of groups of windows spaced apart along the circumferential direction, each group of windows is connected to each heat dissipation space, and at least one group of windows includes a plurality of spaced apart windows.

[0013] In some embodiments, any two adjacent heat sinks and the first connection structure and the second connection structure are arranged to form a heat dissipation space, and the heat dissipation space axially penetrates one end or both ends of the heat sink.

[0014] In some embodiments, the first connection structure is an integrally formed annular structure, and / or the second connection structure is an integrally formed annular structure.

[0015] In some embodiments, the first connection structure includes a plurality of first connection members, which are arranged circumferentially and used to surround the outer circumference of the motor housing; each first connection member is arranged at one end of each heat sink along the radial direction and is bent relative to the heat sink; two adjacent first connection members are fixedly connected.

[0016] In some embodiments, the first connector includes:

[0017] A first connection portion is arranged at one end of the heat sink in the radial direction and is bent relative to the heat sink; a first socket is provided at the connection between the first connection portion and the heat sink, and the first connection portions of the plurality of first connection members are arranged along the circumferential direction;

[0018] The second connection part is arranged at one end of the first connection part away from the heat sink along the circumferential direction; the second connection parts of the plurality of first connection members are arranged along the circumferential direction, and the second connection parts are plugged into the first sockets of the adjacent first connection members along the circumferential direction.

[0019] In some embodiments, the first connecting member and the heat sink are integrally formed.

[0020] In some embodiments, the second connecting structure includes a plurality of second connecting members, which are arranged circumferentially and used to surround the outer circumference of the motor housing; each second connecting member is arranged at one end of each heat sink radially away from the first connecting structure and is bent relative to the heat sink; two adjacent second connecting members are fixedly connected.

[0021] In some embodiments, the second connector includes:

[0022] A third connection portion is arranged at one end of the heat sink radially away from the first connection structure and is bent relative to the heat sink; a second socket is provided at the connection between the third connection portion and the heat sink, and the third connection portions of the plurality of second connection members are arranged along the circumferential direction;

[0023] The fourth connection part is arranged at one end of the third connection part away from the heat sink along the circumferential direction; the fourth connection parts of the plurality of second connection members are arranged along the circumferential direction, and the fourth connection parts are plugged into the second sockets of the adjacent second connection members along the circumferential direction.

[0024] In some embodiments, the second connecting member and the heat sink are integrally formed.

[0025] In a second aspect, an embodiment of the present application provides a motor, comprising:

[0026] Motor housing;

[0027] The radiator has a first connection structure surrounding the outer periphery of the motor housing, and a plurality of radiating fins of the radiator surrounding the outer periphery of the motor housing at intervals.

[0028] In some embodiments, a first heat-conducting layer is provided between the first connecting structure and the outer peripheral wall of the motor housing.

[0029] In some embodiments, the motor further comprises:

[0030] a stator, at least partially disposed within the motor housing;

[0031] a rotor at least partially disposed within the stator;

[0032] The second heat-conducting layer is arranged between the stator and the motor housing.

[0033] In a third aspect, an embodiment of the present application provides a method for processing a motor, which is applied to the motor; the method for processing the motor includes:

[0034] The radiator is surrounded on the outer periphery of the motor housing, so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing.

[0035] In some embodiments, the heat sink is surrounded by the outer periphery of the motor housing, so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing, including:

[0036] The annular heat sink is sleeved on the outer periphery of the motor housing, so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing;

[0037] Alternatively, the radiator is arranged on the outer periphery of the motor housing, and the two ends of the radiator are fixedly connected along the circumferential direction, so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are arranged around the outer periphery of the motor housing at intervals.

[0038] In some embodiments, the heat sink is surrounded on the outer periphery of the motor housing, so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing, including:

[0039] The first connecting members of the first connecting structure, the second connecting members of the second connecting structure and the heat sinks form a heat dissipation structure;

[0040] The plurality of heat dissipation structures are sequentially arranged on the outer periphery of the motor housing along the circumferential direction, so that the plurality of first connecting members are arranged around the outer periphery of the motor housing, and the plurality of heat dissipation fins are arranged around the outer periphery of the motor housing at intervals;

[0041] Any two adjacent first connecting members are fixedly connected, and any two adjacent second connecting members are fixedly connected.

[0042] In some embodiments, the heat sink is surrounded on the outer periphery of the motor housing so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing, and further includes:

[0043] A first heat conducting layer is arranged between the first connecting structure and the outer peripheral wall of the motor housing.

[0044] The beneficial effects of the heat sink, motor and motor processing method provided in the embodiments of the present application are:

[0045] The radiator provided in the embodiment of the present application is arranged around the outer periphery of the motor housing through the first connection structure of the radiator, and a plurality of heat sinks of the heat dissipation assembly are arranged on the first connection structure at intervals and around the outer periphery of the motor housing, so that the heat generated by the motor can be conducted to the heat sink through the first connection structure and dissipated through the heat sink. The radiator also includes a second connection structure, which is arranged on a plurality of heat sinks to fix the plurality of heat sinks together, so that the first connection structure and the second connection structure jointly fix the plurality of heat sinks together, so that the plurality of heat sinks can be stably surrounded by the outer periphery of the motor housing. In this way, there is no need to increase the thickness of the heat sink to improve the stability of the heat sink, so as to help reduce the thickness of the heat sink. Based on this, when the spacing between two adjacent heat sinks in the circumferential direction is predetermined, the number of heat sinks can be increased, thereby increasing the heat dissipation area of ​​all heat sinks, that is, increasing the heat dissipation area of ​​the heat dissipation assembly, which helps to improve the heat dissipation effect of the radiator, so as to improve the heat dissipation effect of the motor, and improve the performance and life of the motor.

[0046] The motor provided in the embodiment of the present application, by adopting the radiator involved in the above embodiments, helps to improve the heat dissipation effect of the motor and improve the performance and life of the motor.

[0047] The motor processing method provided in the embodiment of the present application, by being applied to the motors involved in the above embodiments, helps to improve the heat dissipation effect of the motor and improve the performance and life of the motor.

[0048] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0050] Figure 1 A partial three-dimensional structural diagram of a motor provided in some embodiments of the present application;

[0051] Figure 2 A three-dimensional structural diagram of a radiator provided in some embodiments of the present application;

[0052] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0053] Figure 4 A three-dimensional structural diagram of a radiator provided in some other embodiments of the present application;

[0054] Figure 5 for Figure 4 A three-dimensional structural diagram of two heat dissipation structures of the provided radiator;

[0055] Figure 6 for Figure 5 Exploded diagram of

[0056] Figure 7 for Figure 5 The enlarged view of point B in the middle;

[0057] Figure 8 for Figure 5 Enlarged view of point C in the middle;

[0058] Fig. 9 A flow chart of a method for machining a motor provided in some embodiments of the present application.

[0059] Among them, the reference numerals in the figure are:

[0060] 100-motor; 10-heat sink; 101-heat dissipation space; 102-window; 103-first opening; 104-first socket; 105-second socket; 1-first connection structure; 11-first connecting member; 111-first connecting portion; 112-second connecting portion; 2-heat dissipation assembly; 21-heat sink; 3-second connection structure; 31-second connecting member; 311-third connecting portion; 312-fourth connecting portion; 20-motor housing; 30-stator; M-heat dissipation structure; M1-first heat dissipation structure; M2-second heat dissipation structure; Z-axial direction; Y-radial direction; E-circumferential direction. DETAILED DESCRIPTION

[0061] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0062] Unless otherwise specified, all implementations and optional implementations of the embodiments of the present application can be combined with each other to form a new technical solution.

[0063] Unless otherwise specified, all technical features and optional technical features of the embodiments of the present application can be combined with each other to form a new technical solution.

[0064] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0065] 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. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0066] In the description of the embodiments of the present application, "multiple" means more than two, and unless otherwise clearly and specifically defined, "more than two" includes two. Accordingly, "multiple groups" means more than two groups, including two groups.

[0067] In the description of the embodiments of the present application, 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 or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0068] In the description of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, in this application, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0069] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical terms "adjacent" and "adjacent" refer to proximity in position. For example, among the three components A1, A2 and B, the distance between A1 and B is greater than the distance between A2 and B. Then A2 is closer to B than A1, that is, A2 is adjacent to B. It can also be said that B is adjacent to A2. In other words, A2 is adjacent to B. For another example, when there are multiple C components, the multiple C components are C1, C2...CN, and when one of the C components, such as C2, is closer to the B component than the other C components, then B is adjacent to C2. It can also be said that C2 is adjacent to B. In other words, C2 is adjacent to B.

[0070] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0071] A motor, also known as an electric motor, is a device that converts electrical energy into mechanical energy. A motor generally consists of a rotor and a stator. The motor uses the energized coil on the stator to generate a rotating magnetic field and act on the rotor to form a magneto-electrical rotation torque.

[0072] In the related art, the motor generally generates a large amount of heat during operation, but it is difficult for the motor to quickly dissipate the generated heat during operation, causing the motor to easily stop working when overheated, affecting the motor's performance and life.

[0073] In some cases, a plurality of heat sinks may be arranged at intervals on the periphery of the motor to dissipate the heat generated by the motor through the heat sinks, thereby improving the performance and life of the motor. However, in order to stably arrange the heat sinks on the periphery of the motor, the heat sinks are generally thicker, which limits the heat dissipation effect of the heat sinks and makes it difficult to efficiently dissipate the heat of the motor.

[0074] Based on the above considerations, the embodiment of the present application provides a radiator, a motor and a processing method of the motor, wherein the first connection structure of the radiator is arranged around the outer periphery of the motor housing, and the plurality of heat sinks of the heat dissipation assembly are arranged on the first connection structure at intervals and around the outer periphery of the motor housing, so that the heat generated by the motor can be conducted to the heat sink through the first connection structure and dissipated through the heat sink. The radiator also includes a second connection structure, which is arranged on a plurality of heat sinks to fix the plurality of heat sinks together, so that the first connection structure and the second connection structure jointly fix the plurality of heat sinks together, so that the plurality of heat sinks can be stably surrounded by the outer periphery of the motor housing. In this way, there is no need to increase the thickness of the heat sink to improve the stability of the heat sink, so as to help reduce the thickness of the heat sink. Based on this, when the spacing between two adjacent heat sinks in the circumferential direction is predetermined, the number of heat sinks can be increased to increase the heat dissipation area of ​​all heat sinks, which helps to improve the heat dissipation effect of the radiator, improve the heat dissipation effect of the motor, and improve the performance and life of the motor.

[0075] It should be noted here that the motor involved in the embodiments of the present application can be used in electric equipment as a power source.

[0076] The electric device may be, but is not limited to, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0077] The electric device may also be a vehicle or a vehicle chassis. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended range vehicle.

[0078] The motor involved in the embodiment of the present application mainly includes a rotor, a stator and a rotating shaft. The rotating shaft and the rotor are fixedly connected, and the rotor can rotate relative to the stator. Among them, the rotor is provided with magnetic poles, and the stator is provided with an energized coil. When working, the energized coil on the stator can generate a rotating magnetic field and act on the magnetic poles of the rotor to form a magneto-electric power rotation torque, thereby driving the rotor to rotate, and then driving the rotating shaft to rotate together, so as to output power through the rotating shaft.

[0079] The motor can be an axial motor or a radial motor.

[0080] The radial motor is a motor in which the stator's energized coils and the rotor's magnetic poles are arranged radially. For example, the stator is sleeved on the outer circumference of the rotor; or the rotor is sleeved on the outer circumference of the stator.

[0081] The axial motor refers to a motor in which the energized coils of the stator and the magnetic poles of the rotor are arranged axially. For example, the stator and the rotor are arranged axially.

[0082] The motor can be an inner rotor motor or an outer rotor motor. An inner rotor motor refers to a motor whose rotor is located inside a stator, while an outer rotor motor refers to a motor whose rotor is located outside a stator.

[0083] As an example, Figure 1 As shown, Figure 1 The partial three-dimensional structure diagram of the motor 100 provided in some embodiments of the present application. The motor 100 is an inner rotor motor 100 .

[0084] like Figure 1 As shown, the motor 100 may further include a motor housing 20, and the rotor and the stator 30 are both disposed in the motor housing 20. The motor housing 20 refers to the outer shell of the motor 100, and is mainly used to protect the rotor and the stator 30.

[0085] Please also read Figures 1 to 4 , and combined with other drawings. Among them, Figure 2 A three-dimensional structural diagram of a heat sink 10 provided in some embodiments of the present application, Figure 3 for Figure 2 Enlarged view of point A in the middle. Figure 4 The three-dimensional structure diagram of the heat sink 10 provided in some other embodiments of the present application, wherein Figure 4 The window 102 involved below is not illustrated. The radiator 10 provided in the embodiment of the present application is mainly used to dissipate heat for the motor 100, and is specifically used in conjunction with the motor housing 20 of the motor 100. The radiator 10 provided in the embodiment of the present application includes a first connection structure 1, a heat dissipation assembly 2, and a second connection structure 3. The first connection structure 1 is extended along the circumferential direction E, and is used to be arranged around the outer periphery of the motor housing 20. The heat dissipation assembly 2 includes a plurality of heat sinks 21. The plurality of heat sinks 21 are arranged on the first connection structure 1 at intervals along the circumferential direction E to surround the outer periphery of the motor housing 20. The second connection structure 3 is arranged on the plurality of heat sinks 21 to fixedly connect the plurality of heat sinks 21.

[0086] The heat dissipation component 2 refers to the part of the radiator 10 that is mainly used for heat dissipation. The heat dissipation component 2 includes a plurality of heat dissipation fins 21, and the heat dissipation component 2 is used for heat dissipation through the heat dissipation fins 21. The heat dissipation fins 21 can be, but are not limited to, copper fins or aluminum fins.

[0087] The first connection structure 1 and the second connection structure 3 refer to structures in the heat sink 10 for fixing and connecting a plurality of heat sinks 21. The first connection structure 1 and the second connection structure 3 can also be used for heat dissipation. The material of the first connection structure 1 can be, but not limited to, copper or aluminum, and the material of the second connection structure 3 can be, but not limited to, copper or aluminum.

[0088] The first connection structure 1 is extended along the circumferential direction E, which means that the first connection structure 1 is substantially annular, so that the first connection structure 1 can be arranged around the outer periphery of the motor housing 20, so that a plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20, and the second connection structure 3 is also substantially around the outer periphery of the motor housing 20. It can be understood that the radiator 10 is substantially annular and surrounds the outer periphery of the motor housing 20.

[0089] The second connection structure 3 is disposed on the plurality of heat sinks 21 , so that any two adjacent heat sinks 21 can be relatively fixed via the second connection structure 3 , thereby making the plurality of heat sinks 21 indirectly fixed via the second connection structure 3 .

[0090] It can be understood that the first connection structure 1 is arranged on the periphery of the motor housing 20, and the heat sink 21 is arranged on the side of the first connection structure 1 away from the motor housing 20 along the radial direction Y, that is, the first connection structure 1 is arranged at one end of the heat sink 21 close to the motor housing 20 along the radial direction Y. In this way, the heat on the motor housing 20 can be transferred to the heat sink 21 through the first connection structure 1, and the heat on the heat sink 21 can also be transferred to the second connection structure 3, and the heat can be dissipated through at least one of the first connection structure 1, the heat sink 21 and the second connection structure 3. Among them, the heat is mainly dissipated through the heat sink 21.

[0091] The second connection structure 3 may be spaced apart from the first connection structure 1 , or may be fixedly connected to the first connection structure 1 .

[0092] The radiator 10 provided in the embodiment of the present application is provided with a first connection structure 1 of the radiator 10 surrounding the outer periphery of the motor housing 20, and a plurality of heat sinks 21 of the heat dissipation assembly 2 are arranged at intervals on the first connection structure 1 and surrounding the outer periphery of the motor housing 20, so that the heat generated by the motor 100 can be conducted to the heat sink 21 through the first connection structure 1 and dissipated through the heat sink 21. The radiator 10 also includes a second connection structure 3, and the second connection structure 3 is arranged on the plurality of heat sinks 21 to fix the plurality of heat sinks 21 together, so that the first connection structure 1 and the second connection structure 3 jointly fix the plurality of heat sinks 21 together, so that the plurality of heat sinks 21 can be stably surrounded by the outer periphery of the motor housing 20. In this way, there is no need to increase the thickness of the heat sink 21 to improve the stability of the heat sink 21, so as to help reduce the thickness of the heat sink 21. Based on this, when the spacing between two adjacent heat sinks 21 in the circumferential direction E is predetermined, the number of heat sinks 21 can be increased, thereby increasing the heat dissipation area of ​​all heat sinks 21, that is, increasing the heat dissipation area of ​​the heat dissipation assembly 2. This helps to improve the heat dissipation effect of the radiator 10, thereby improving the heat dissipation effect of the motor 100, and improving the performance and life of the motor 100.

[0093] It should be noted that the heat dissipation area of ​​the heat sink 21 refers to the area of ​​the surface of the heat sink 21 that is in contact with the outside air, and mainly includes the area of ​​the surface of the heat sink 21 along its thickness direction. By increasing the number of heat sinks 21, the number of surfaces of all heat sinks 21 can be increased, thereby increasing the sum of the surface areas of all heat sinks 21, thereby increasing the heat dissipation area of ​​the heat dissipation assembly 2.

[0094] It should be further explained that the radiator 10 is roughly annular in structure. The circumferential direction E involved in each embodiment of the present application refers to the circumferential direction E of the radiator 10, that is, the circumferential direction of the rotating shaft of the motor 100. The radial direction Y involved in each embodiment of the present application refers to the radial direction Y of the radiator 10, that is, the radial direction of the rotating shaft of the motor 100. The axial direction Z involved in each embodiment of the present application refers to the axial direction Z of the radiator 10, that is, the axial extension direction of the rotating shaft of the motor 100. Among them, the axial direction Z, the circumferential direction E and the radial direction Y are all double-arrow directions.

[0095] In addition, heat is dissipated through the heat sink 21 on the radiator 10. Compared with the water-cooling heat dissipation solution in the prior art, the overall structure of the motor 100 provided in the embodiment of the present application is very simple, light, and easy to process. Moreover, the overall system of the motor 100 is simple and the manufacturing cost is low.

[0096] In some embodiments, the thickness of the heat sink 21 is ∈[0.05 mm, 0.5 mm].

[0097] Specifically, the thickness of the heat sink 21 refers to the dimension of the heat sink 21 along the circumferential direction E.

[0098] The thickness of the heat sink 21 can be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm , 0.27mm, 0.28mm, 0.29mm, 0.3mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.36mm, 0.37mm, 0.38mm , 0.39mm, 0.4mm, 0.41mm, 0.42mm, 0.43mm, 0.44mm, 0.45mm, 0.46mm, 0.47mm, 0.48mm, 0.49mm, 0.5mm.

[0099] Such a configuration enables the heat sink 21 to have a smaller thickness. When the spacing between two adjacent heat sinks 21 along the circumferential direction E is predetermined, it helps to increase the number of heat sinks 21, thereby increasing the heat dissipation area of ​​all heat sinks 21, that is, increasing the heat dissipation area of ​​the heat dissipation assembly 2. This helps to improve the heat dissipation effect of the radiator 10, thereby increasing the heat dissipation effect of the motor 100 and improving the performance and life of the motor 100.

[0100] In some embodiments, please refer to Figures 2 to 4 , and in combination with other drawings. The first connection structure 1 and the second connection structure 3 are respectively arranged at two ends of the heat sink 21 along the radial direction Y.

[0101] Specifically, the first connection structure 1 is disposed at one end of the heat sink 21 close to the motor housing 20 along the radial direction Y, so that the first connection structure 1 is disposed between the motor housing 20 and the heat sink 21 along the radial direction Y. The second connection structure 3 is disposed at one end of the heat sink 21 away from the motor housing 20 along the radial direction Y.

[0102] Such an arrangement enables the first connecting structure 1 and the second connecting structure 3 to be respectively arranged at the two ends of each heat sink 21 along the radial direction Y, which helps to improve the strength of the second connecting structure 3 in fixing any two adjacent heat sinks 21, thereby helping to improve the stability of the multiple heat sinks 21 on the periphery of the motor housing 20, so as to help reduce the thickness of the heat sink 21, and further help to increase the heat dissipation area of ​​the heat dissipation assembly 2, improve the heat dissipation effect of the radiator 10, and improve the heat dissipation effect of the motor 100.

[0103] In other embodiments, the second connection structure 3 may be disposed at at least one end of the heat sink 21 along the axial direction Z.

[0104] In some embodiments, please refer to Figures 2 to 4 Any two adjacent heat sinks 21 and the first connection structure 1 and the second connection structure 3 are arranged to form a heat dissipation space 101. The second connection structure 3 is provided with a window 102, which is connected to one end of the heat dissipation space 101 along the radial direction Y.

[0105] It can be understood that a heat dissipation space 101 is formed between any two adjacent heat dissipation fins 21 along the circumferential direction E, so that the heat sink 10 is formed with a plurality of heat dissipation spaces 101 arranged along the circumferential direction E.

[0106] The window 102 refers to a through hole provided on the second connection structure 3, and the heat dissipation space 101 is connected to the external environment through the window 102. Specifically, the window 102 is connected to an end of the heat dissipation space 101 away from the first connection structure 1 along the radial direction Y, so that the window 102 is connected to an end of the heat dissipation space 101 away from the motor housing 20 along the radial direction Y. It can be understood that the window 102 is provided on the surface of the radiator 10 away from the motor housing 20 along the radial direction Y.

[0107] Among them, the outside air can enter the heat dissipation space 101 through the window 102, and the air in the heat dissipation space 101 can also flow to the external environment through the window 102, so that the air can flow between the external environment and the heat dissipation space 101 through the window 102 to dissipate the heat on the radiator 10 to the external environment.

[0108] With such a configuration, the air in the heat dissipation space 101 can exchange heat with the heat sink 21, the first connection structure 1, and the second connection structure 3, and the heat on the heat sink 21, the first connection structure 1, and the second connection structure 3 can be driven to the external environment through the window 102 to achieve heat dissipation. Specifically, the air in the heat dissipation space 101 can flow the heat through the window 102 in the radial direction Y in a direction away from the motor housing 20, which helps to improve the heat dissipation effect.

[0109] In some embodiments, please refer to Figures 2 to 4 , and in combination with other drawings. The second connection structure 3 is provided with a plurality of groups of windows 102, and the plurality of groups of windows 102 are arranged at intervals on the second connection structure 3 along the circumferential direction E. Each group of windows 102 is connected to each heat dissipation space 101, and at least one group of windows 102 includes a plurality of windows 102 arranged at intervals.

[0110] It can be understood that the number of groups of windows 102 is the same as the number of heat dissipation spaces 101 , and multiple groups of windows 102 and multiple heat dissipation spaces 101 are arranged in a one-to-one correspondence, and each group of windows 102 is connected to the corresponding heat dissipation space 101 .

[0111] At least one group of windows 102 includes a plurality of windows 102 , the plurality of windows 102 are arranged at intervals, and the plurality of windows 102 in the group are all connected to corresponding heat dissipation spaces 101 , so that one heat dissipation space 101 can be connected to a plurality of windows 102 .

[0112] Such a configuration allows the air between the external environment and the heat dissipation space 101 to flow through the corresponding group of multiple windows 102, which helps to improve the efficiency of the air flowing between the external environment and the heat dissipation space 101, thereby helping to improve the efficiency of the air in dissipating the heat from the heat sink 21, the first connecting structure 1 and the second connecting structure 3 to the external environment, thereby improving the heat dissipation effect of the radiator 10 and the heat dissipation effect of the motor 100.

[0113] As an example, the air in the heat dissipation space 101 can exchange heat with the heat sink 21, so that the air pressure of the heat dissipation space 101 increases as the temperature increases, thereby causing an air pressure difference between the heat dissipation space 101 and the external environment. Under the action of the air pressure difference, the air in the heat dissipation space 101 flows to the external environment through one of the windows 102 of the corresponding group to dissipate heat to the external environment. Based on this, the air pressure in the heat dissipation space 101 is reduced, so that there continues to be an air pressure difference between the external environment and the heat dissipation space 101. Under the action of the air pressure difference, the air in the external environment flows into the heat dissipation space 101 through another part of the windows 102 of the group... and so on, so that the radiator 10 can continuously dissipate heat. It can be understood that a group of two-part windows 102 can have a heat dissipation effect similar to that of a chimney, which helps the radiator 10 to achieve heat dissipation.

[0114] In some embodiments, please refer to Figures 2 to 4 Any two adjacent heat sinks 21 and the first connection structure 1 and the second connection structure 3 are arranged to form a heat dissipation space 101 , and the heat dissipation space 101 passes through both ends of the heat sink 10 along the axial direction Z.

[0115] The heat dissipation space 101 has openings at both ends along the axial direction Z, and the openings at the two ends are respectively a first opening 103 and a second opening. The second opening is not shown in the drawings.

[0116] As an example, the air in the heat dissipation space 101 can exchange heat with the heat sink 21, so that the air pressure of the heat dissipation space 101 increases as the temperature increases, thereby causing an air pressure difference between the heat dissipation space 101 and the external environment. Under the action of the air pressure difference, the air in the heat dissipation space 101 can flow to the external environment through the first opening 103 and the window 102 to dissipate heat to the external environment. Under the action of the air pressure difference, the air in the external environment can enter the heat dissipation space 101 through the second opening to exchange heat with the heat sink 21... and so on. That is, the first opening 103, the second opening and the window 102 can enable the radiator 10 to achieve efficient heat dissipation based on the principle of chimney exhaust heat dissipation, thereby improving the heat dissipation effect of the motor 100.

[0117] It can be understood that, among the window 102, the first opening 103 and the second opening, a part thereof can serve as an air inlet for air from the external environment to enter the heat dissipation space 101, and another part thereof can serve as an air outlet for air in the heat dissipation space 101 to flow into the external environment.

[0118] By providing the window 102 , the first opening 103 and the second opening, air can flow very flexibly between the heat dissipation space 101 and the external environment, thereby facilitating heat dissipation and improving the heat dissipation effect.

[0119] In other embodiments, any two adjacent heat sinks 21 and the first connection structure 1 and the second connection structure 3 are arranged to form a heat dissipation space 101 , and the heat dissipation space 101 passes through one end of the heat sink 10 along the axial direction Z.

[0120] It can be understood that the heat dissipation space 101 has an opening at one end along the axial direction Z. A portion of the opening or window 102 can be used as an air inlet for air from the outside environment to enter the heat dissipation space 101, and another portion can be used as an air outlet for air in the heat dissipation space 101 to flow into the outside environment.

[0121] In some embodiments, please refer to Figure 2 and Figure 3 , and in combination with other drawings. The first connection structure 1 is an annular structure formed in one piece.

[0122] It can be understood that the first connection structure 1 is sleeved on the outer periphery of the motor housing 20, and the heat sink 21 is arranged on the outer peripheral side of the first connection structure 1, specifically, the heat sink 21 is arranged on the side of the first connection structure 1 away from the motor housing 20 along the radial direction Y.

[0123] The first connection structure 1 and the heat sink 21 may be integrally formed, for example, by stamping or the like; or they may be separately fixedly connected by welding or the like.

[0124] In some embodiments, please refer to Figure 2 and Figure 3 , and in combination with other drawings. The second connection structure 3 is an annular structure formed in one piece.

[0125] The second connection structure 3 and the heat sink 21 may be integrally formed, for example, by stamping or the like; or they may be separately fixedly connected by welding or the like.

[0126] By integrally forming at least one of the first connection structure 1 and the second connection structure 3 , the processing of the heat sink 10 is simplified.

[0127] As an example, Figure 2 and Figure 3 As shown, the first connection structure 1 and the second connection structure 3 are both annular structures, the second connection structure 3 is arranged at intervals on the outer periphery of the first connection structure 1, the heat sink 21 is arranged between the first connection structure 1 and the second connection structure 3 along the radial direction Y, and a plurality of heat sinks 21 are arranged at intervals along the circumferential direction E. In addition, the first connection structure 1, the second connection structure 3 and the heat sink 21 are integrally formed. In this way, the heat sink 10 can be integrally formed by stamping, which simplifies the forming work of the heat sink 10.

[0128] In some embodiments, please refer to Figures 4 to 6 , and combined with other drawings. Among them, Figure 5 for Figure 4 A three-dimensional structural diagram of two heat dissipation structures M of the radiator 10 is provided, Figure 6 for Figure 5 Exploded diagram of . Figure 5 and Figure 6 The window 102 is not shown in the figure. The first connection structure 1 includes a plurality of first connection members 11, which are arranged along the circumferential direction E and are used to be arranged together around the outer circumference of the motor housing 20. Each first connection member 11 is arranged at one end of each heat sink 21 along the radial direction Y, and is bent relative to the heat sink 21. Two adjacent first connection members 11 are fixedly connected.

[0129] The plurality of first connecting members 11 are arranged along the circumferential direction E, which means that a major portion of the plurality of first connecting members 11 are arranged along the circumferential direction E. It is allowed that a portion of two adjacent first connecting members 11 are arranged in other ways.

[0130] Specifically, each first connecting member 11 is disposed at one end of each heat sink 21 along the radial direction Y close to the motor housing 20 .

[0131] The first connector 11 is bent relative to the heat sink 21. On the one hand, it is convenient for the first connector 11 to be arranged relative to the outer periphery of the motor housing 20, thereby facilitating the efficiency of heat conduction from the motor housing 20 to the heat sink 10. On the other hand, it is convenient for the first connector 11 to be fixedly connected to the adjacent first connector 11.

[0132] The two adjacent first connectors 11 can be fixedly connected by welding or the like. The first connector 11 can also be fixedly connected to the heat sink 21 on the adjacent first connector 11 by welding or the like.

[0133] In this way, when the heat sink 10 is wrapped around the outer circumference of the motor housing 20, a plurality of first connectors 11 can be sequentially spliced ​​along the circumferential direction E, and a suitable number of first connectors 11 are selected according to the outer diameter of the motor housing 20 for fixed connection. This facilitates the inner diameter of the heat sink 10 to fit the outer diameter of the motor housing 20, thereby improving the heat dissipation effect of the motor 100.

[0134] The first connecting member 11 is disposed on the heat sink 21 and fixedly connected to the adjacent first connecting member 11 , so that two adjacent heat sinks 21 can be indirectly fixed relative to each other.

[0135] In some embodiments, please refer to Figures 4 to 7 , and combined with other drawings. Among them, Figure 75 is an enlarged view of point B. The first connector 11 includes a first connector portion 111 and a second connector portion 112. The first connector portion 111 is disposed at one end of the heat sink 21 along the radial direction Y, and is bent relative to the heat sink 21. A first socket 104 is provided at the connection between the first connector portion 111 and the heat sink 21, and the first connector portions 111 of the plurality of first connectors 11 are disposed along the circumferential direction E. The second connector portion 112 is disposed at one end of the first connector portion 111 away from the heat sink 21 along the circumferential direction E. The second connector portions 112 of the plurality of first connectors 11 are disposed along the circumferential direction E, and the second connector portions 112 are plugged into the first sockets 104 of the adjacent first connectors 11 along the circumferential direction E.

[0136] The first connection portion 111 and the second connection portion 112 are two parts of the first connection member 11, and the first connection portion 111 and the second connection portion 112 are sequentially arranged along the circumferential direction E. Among them, the plurality of first connection members 11 are arranged along the circumferential direction E, specifically, the first connection portions 111 of the plurality of first connection members 11 are arranged along the circumferential direction E, and the second connection portions 112 of the plurality of first connection members 11 are arranged along the circumferential direction E, so that the plurality of first connection members 11 are substantially arranged along the circumferential direction E to surround the outer periphery of the motor housing 20.

[0137] It can be understood that the first connection portion 111 is provided with a first socket 104 , and the first socket 104 extends along the circumferential direction E to the heat sink 21 , so that the first socket 104 is disposed at the connection between the first connection portion 111 and the heat sink 21 .

[0138] The first connection portion 111 and the second connection portion 112 can be fixed to the adjacent first connection members 11 by welding or other methods, so as to achieve a fixed connection between the two adjacent first connection members 11 .

[0139] The first connection portion 111 and the second connection portion 112 may be integrally formed or fixed by welding or other methods.

[0140] By inserting the second connection part 112 into the first socket 104 of the adjacent first connection member 11 along the circumferential direction E, on the one hand, the two first connection members 11 can be positioned, which is convenient for assembling multiple first connection members 11. On the other hand, when two adjacent first connection members 11 are fixedly connected by welding, the first socket 104 and the second connection part 112 are provided to increase the welding position of the two adjacent first connection members 11, so as to help improve the fixing strength of the two adjacent first connection members 11, so as to improve the structural stability of the radiator 10. Specifically, the structural stability of multiple heat sinks 21 is improved to help reduce the thickness of the heat sink 21, so as to increase the heat dissipation area and improve the heat dissipation effect.

[0141] For ease of description, any two adjacent first connectors 11 along the circumferential direction E are defined as the first first connector 11 and the second first connector 11 , and the second connection portion 112 of the first first connector 11 is inserted into the first socket 104 of the second first connector 11 along the circumferential direction E.

[0142] In some embodiments, please refer to Figures 4 to 7 , and in combination with other drawings, the first connecting member 11 and the heat sink 21 are integrally formed.

[0143] Such a configuration helps to simplify the processing of the heat sink 10 .

[0144] In some embodiments, please refer to Figures 4 to 6 , and in combination with other drawings. The second connection structure 3 includes a plurality of second connection members 31, which are arranged along the circumferential direction E and are used to be arranged together around the outer circumference of the motor housing 20. Each second connection member 31 is arranged at one end of each heat sink 21 away from the first connection structure 1 along the radial direction Y, and is bent relative to the heat sink 21. Two adjacent second connection members 31 are fixedly connected.

[0145] The plurality of second connecting members 31 are arranged along the circumferential direction E, which means that a major portion of the plurality of second connecting members 31 are arranged along the circumferential direction E, and it is allowed that a portion of two adjacent second connecting members 31 are arranged along other directions.

[0146] Specifically, each second connecting member 31 is disposed at one end of each heat sink 21 along the radial direction Y away from the first connecting structure 1 , specifically, at one end of each heat sink 21 along the radial direction Y away from the motor housing 20 .

[0147] The second connecting member 31 is bent relative to the heat sink 21 so that the second connecting member 31 can be close to an adjacent second connecting member 31 to achieve a fixed connection with the adjacent second connecting member 31 .

[0148] The two adjacent second connectors 31 can be fixedly connected by welding or the like. The second connector 31 can also be fixedly connected to the heat sink 21 on the adjacent second connector 31 by welding or the like.

[0149] In this way, when the heat sink 10 is wrapped around the outer periphery of the motor housing 20, a plurality of second connectors 31 can be sequentially spliced ​​along the circumferential direction E, and a suitable number of second connectors 31 are selected according to the outer diameter of the motor housing 20 for fixed connection. This facilitates the inner diameter of the heat sink 10 to be adapted to the outer diameter of the motor housing 20, thereby improving the heat dissipation effect of the motor 100.

[0150] The second connecting member 31 is disposed on the heat sink 21 and fixedly connected to adjacent second connecting members 31 , so that two adjacent heat sinks 21 can be indirectly fixed relative to each other.

[0151] In some embodiments, please refer to Figures 4 to 6 , Figure 8 , and combined with other drawings. Among them, Figure 8 for Figure 5 Enlarged view of point C in the middle. The second connecting member 31 includes a third connecting portion 311 and a fourth connecting portion 312. The third connecting portion 311 is arranged at one end of the heat sink 21 away from the first connecting structure 1 along the radial direction Y, and is bent relative to the heat sink 21. A second socket 105 is provided at the connection between the third connecting portion 311 and the heat sink 21, and the third connecting portions 311 of multiple second connecting members 31 are arranged along the circumferential direction E. The fourth connecting portion 312 is arranged at one end of the third connecting portion 311 away from the heat sink 21 along the circumferential direction E. The fourth connecting portion 312 of multiple second connecting members 31 is arranged along the circumferential direction E, and the fourth connecting portion 312 is inserted into the second socket 105 of the adjacent second connecting member 31 along the circumferential direction E.

[0152] The third connection portion 311 and the fourth connection portion 312 are two parts of the second connection member 31, and the third connection portion 311 and the fourth connection portion 312 are sequentially arranged along the circumferential direction E. The plurality of second connection members 31 are arranged along the circumferential direction E, specifically, the third connection portions 311 of the plurality of second connection members 31 are arranged along the circumferential direction E, and the fourth connection portions 312 of the plurality of second connection members 31 are arranged along the circumferential direction E, so that the plurality of second connection members 31 are arranged substantially along the circumferential direction E.

[0153] It can be understood that the third connection portion 311 is provided with a second socket 105 , and the second socket 105 extends along the circumferential direction E to the heat sink 21 , so that the second socket 105 is disposed at the connection between the third connection portion 311 and the heat sink 21 .

[0154] The third connection portion 311 and the fourth connection portion 312 can be fixed to the adjacent second connection members 31 by welding or other methods, so as to achieve a fixed connection between the two adjacent second connection members 31 .

[0155] The third connection portion 311 and the fourth connection portion 312 may be integrally formed or fixed by welding or other methods.

[0156] By inserting the fourth connection portion 312 into the second socket 105 of the adjacent second connection member 31 along the circumferential direction E, on the one hand, the two second connection members 31 can be positioned, which facilitates the assembly of multiple second connection members 31. On the other hand, when two adjacent second connection members 31 are fixedly connected by welding, the second socket 105 and the fourth connection portion 312 are provided to help increase the welding position of the two adjacent second connection members 31, so as to help improve the fixing strength of the two adjacent second connection members 31, so as to improve the structural stability of the radiator 10. Specifically, the structural stability of multiple heat sinks 21 is improved to help reduce the thickness of the heat sink 21, so as to increase the heat dissipation area and improve the heat dissipation effect.

[0157] For ease of description, any two adjacent second connectors 31 along the circumferential direction E are defined as the first second connector 31 and the second second connector 31 , respectively. The fourth connection portion 312 of the first second connector 31 is inserted into the second socket 105 of the second second connector 31 along the circumferential direction E.

[0158] In some embodiments, please refer to Figures 4 to 6 , Figure 8 , and in combination with other drawings, the second connecting member 31 and the heat sink 21 are integrally formed.

[0159] Such a configuration helps to simplify the processing of the heat sink 10 .

[0160] As one of the embodiments of this application, Figures 4 to 8 As shown, the first connection structure 1 includes a plurality of the above-mentioned first connection members 11, and the second connection structure 3 includes a plurality of the above-mentioned second connection members 31. Each first connection member 11 and each second connection member 31 are respectively arranged at both ends of each heat sink 21 along the radial direction Y, and are integrally formed and arranged to form a heat dissipation structure M. It can be understood that the radiator 10 includes a plurality of heat dissipation structures M, and the plurality of heat dissipation structures M are sequentially spliced ​​and arranged along the circumferential direction E. Specifically, any two adjacent heat dissipation structures M along the circumferential direction E are respectively the first heat dissipation structure M1M and the second heat dissipation structure M2M, the second connection portion 112 of the first connection member 11 of the first heat dissipation structure M1M is plugged into the first socket 104 of the second heat dissipation structure M2M along the circumferential direction E, and the first connection member 11 of the first heat dissipation structure M1M and the first connection member 11 of the second heat dissipation structure M2M are welded; the fourth connection portion 312 of the second connection member 31 of the first heat dissipation structure M1M is plugged into the second socket 105 of the second heat dissipation structure M2M along the circumferential direction E, and the second connection member 31 of the first heat dissipation structure M1M and the second connection member 31 of the second heat dissipation structure M2M are welded. Based on this, a plurality of heat dissipation structures M are sequentially spliced ​​and welded along the circumferential direction E to surround the outer circumference of the motor housing 20 .

[0161] The heat dissipation structure M may be, but is not limited to, integrally formed by stamping.

[0162] In this way, when the radiator 10 is wrapped around the outer periphery of the motor housing 20, multiple heat dissipation structures M can be sequentially spliced ​​and arranged on the outer periphery of the motor housing 20 along the circumferential direction E, and a suitable number of heat dissipation structures M can be selected according to the outer diameter of the motor housing 20 for plugging and welding. In this way, the inner diameter of the radiator 10 is easily adapted to the outer diameter of the motor housing 20, thereby improving the heat dissipation effect of the motor 100.

[0163] See also Figure 1 , and in combination with other drawings. The motor 100 provided in the embodiment of the present application includes a motor housing 20 and a radiator 10. Among them, the radiator 10 in this embodiment is the same as the radiator 10 in the above embodiments. Please refer to the relevant description of the radiator 10 in the above embodiments for details, which will not be repeated here.

[0164] The heat sink 10 surrounds the outer circumference of the motor housing 20. Specifically, the first connection structure 1 of the heat sink 10 surrounds the outer circumference of the motor housing 20, and the plurality of heat sinks 21 of the heat sink 10 surround the outer circumference of the motor housing 20 at intervals.

[0165] The motor 100 provided in the embodiment of the present application adopts the heat sink 10 involved in the above embodiments, so that the heat generated by the motor 100 can be conducted to the heat sink 21 through the first connection structure 1, and dissipated through the heat sink 21. In addition, the heat sink 10 also includes a second connection structure 3, and the second connection structure 3 is arranged on the plurality of heat sinks 21 to fix the plurality of heat sinks 21 together, so that the first connection structure 1 and the second connection structure 3 jointly fix the plurality of heat sinks 21 together, so that the plurality of heat sinks 21 can be stably surrounded by the outer periphery of the motor housing 20. In this way, there is no need to increase the thickness of the heat sink 21 to improve the stability of the heat sink 21, so as to help reduce the thickness of the heat sink 21. Based on this, when the spacing between two adjacent heat sinks 21 in the circumferential direction E is predetermined, the number of heat sinks 21 can be increased to increase the heat dissipation area of ​​all heat sinks 21, which helps to improve the heat dissipation effect of the radiator 10, improve the heat dissipation effect of the motor 100, and improve the performance and life of the motor 100.

[0166] In some embodiments, a first heat-conducting layer is disposed between the first connecting structure 1 and the outer peripheral wall of the motor housing 20 .

[0167] The first heat-conducting layer refers to a structural layer with heat-conducting properties, and the first heat-conducting layer may be a structural layer such as solder paste and heat-conducting glue.

[0168] For example, solder paste can be provided between the first connection structure 1 and the outer periphery of the motor housing 20, and the first connection structure 1 and the motor housing 20 can be welded, so that, on the one hand, the first connection structure 1 and the motor housing 20 can be easily fixed, and on the other hand, the heat on the motor housing 20 can be conducted to the first connection structure 1 through the solder paste, and then to the heat sink 21, so that the heat on the motor 100 can be dissipated through the radiator 10, thereby improving the heat dissipation effect. In addition, the provision of the first heat-conducting layer helps to fill the gap between the first connection structure 1 and the outer periphery of the motor housing 20, so as to help improve the heat conduction efficiency and improve the heat dissipation effect of the motor 100.

[0169] In some embodiments, see Figure 1 , and in combination with other drawings. The motor 100 further includes a stator 30, a rotor and a second heat-conducting layer. At least a portion of the stator 30 is disposed in the motor housing 20, and at least a portion of the rotor is disposed in the stator 30. The second heat-conducting layer is disposed between the stator 30 and the motor housing 20.

[0170] It can be understood that at least part of the stator 30 and at least part of the rotor are both disposed in the motor housing 20. As an example, the stator 30 and the rotor are both disposed in the motor housing 20 to achieve a protective effect through the motor housing 20.

[0171] At least a portion of the rotor is disposed within the stator 30 , so that the motor 100 is an inner rotor motor 100 .

[0172] The second heat-conducting layer refers to a structural layer with heat-conducting properties, and the second heat-conducting layer can be a structural layer such as solder paste, heat-conducting glue, etc.

[0173] For example, a heat-conducting adhesive may be provided between the motor housing 20 and the stator 30 , so that the heat on the stator 30 may be conducted to the motor housing 20 through the second heat-conducting layer.

[0174] Such a configuration helps to improve the efficiency of heat conduction from the stator 30 to the motor housing 20 , thereby improving the efficiency of heat dissipation from the motor 100 through the radiator 10 , and improving the heat dissipation effect of the motor 100 .

[0175] See also Fig. 9 , and combined with other drawings. Among them, Fig. 9 A method flow chart of a method for processing the motor 100 provided in some embodiments of the present application. The method for processing the motor 100 provided in the embodiments of the present application is applied to the motor 100. The motor 100 in this embodiment is the same as the motor 100 in the above embodiments. For details, please refer to the relevant description of the motor 100 in the above embodiments, which will not be repeated here.

[0176] Specifically, the processing method of the motor 100 provided in the embodiment of the present application includes the following steps:

[0177] S10 , surround the radiator 10 on the outer periphery of the motor housing 20 , so that the first connection structure 1 is disposed around the outer periphery of the motor housing 20 , and a plurality of heat sinks 21 surround the outer periphery of the motor housing 20 at intervals.

[0178] The processing method of the motor 100 provided in the embodiment of the present application is applied to the motor 100 involved in the above embodiments, and the radiator 10 is surrounded on the outer periphery of the motor housing 20, so that the first connection structure 1 is arranged around the outer periphery of the motor housing 20, and the plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20, so that the heat generated by the motor 100 can be conducted to the heat sink 21 through the first connection structure 1, and dissipated through the heat sink 21. The radiator 10 also includes a second connection structure 3, and the second connection structure 3 is arranged on the plurality of heat sinks 21 to fix the plurality of heat sinks 21 together, so that the first connection structure 1 and the second connection structure 3 jointly fix the plurality of heat sinks 21 together, so that the plurality of heat sinks 21 can be stably surrounded on the outer periphery of the motor housing 20. In this way, there is no need to increase the thickness of the heat sink 21 to improve the stability of the heat sink 21, which helps to reduce the thickness of the heat sink 21. Based on this, when the spacing between two adjacent heat sinks 21 in the circumferential direction E is predetermined, the number of heat sinks 21 can be increased to increase the heat dissipation area of ​​all heat sinks 21, which helps to improve the heat dissipation effect of the radiator 10, thereby improving the heat dissipation effect of the motor 100 and improving the performance and life of the motor 100.

[0179] In some embodiments, the heat sink 10 is surrounded on the outer periphery of the motor housing 20 in step S10, so that the first connection structure 1 is arranged around the outer periphery of the motor housing 20, and the plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20, including the following steps:

[0180] S11 , sleeve the annular heat sink 10 on the outer periphery of the motor housing 20 , so that the first connection structure 1 is disposed around the outer periphery of the motor housing 20 , and a plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20 .

[0181] It can be understood that the radiator 10 is first made into an annular structure and then sleeved on the outer periphery of the motor housing 20, so that the first connection structure 1 is arranged around the outer periphery of the motor housing 20, and multiple heat sinks 21 are spaced around the outer periphery of the motor housing 20.

[0182] Based on this, a first thermal conductive layer such as solder paste or thermal conductive glue can be set between the first connecting structure 1 and the periphery of the motor housing 20 to fill the gap between the first connecting structure 1 and the periphery of the motor housing 20 to ensure the thermal conductivity between the motor housing 20 and the radiator 10.

[0183] Such an arrangement makes the assembly between the heat sink 10 and the motor housing 20 very simple, thereby simplifying the processing operation of the motor 100 .

[0184] Alternatively, in some other embodiments, the step S10 of surrounding the heat sink 10 around the outer periphery of the motor housing 20 so that the first connection structure 1 is disposed around the outer periphery of the motor housing 20, and the plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20, comprises the following steps:

[0185] S12, dispose the radiator 10 on the outer periphery of the motor housing 20, and fix the two ends of the radiator 10 along the circumferential direction E so that the first connection structure 1 is disposed around the outer periphery of the motor housing 20, and a plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20.

[0186] It can be understood that before the radiator 10 is made into an annular structure, the radiator 10 is arranged on the periphery of the motor housing 20, and the radiator 10 is arranged along the surface of the motor housing 20 along the circumferential direction E until the two ends of the radiator 10 along the circumferential direction E are fixed, so that the radiator 10 can be surrounded by the periphery of the motor housing 20.

[0187] Such a configuration enables the radiator 10 to be adapted to the outer diameter of the motor housing 20 , which helps to reduce the gap between the radiator 10 and the motor housing 20 , thereby helping to improve the conduction efficiency between the radiator 10 and the motor housing 20 and improve the heat dissipation effect.

[0188] In some embodiments, the heat sink 10 is surrounded on the outer periphery of the motor housing 20 in step S10, so that the first connection structure 1 is arranged around the outer periphery of the motor housing 20, and the plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20, including the following steps:

[0189] S13, each first connection member 11 of the first connection structure 1, each second connection member 31 of the second connection structure 3 and each heat sink 21 form a heat dissipation structure M;

[0190] The first connection structures 1 , the second connection structures 3 and the heat sinks 21 may be integrally formed to form a heat dissipation structure M. The heat dissipation structure M may be integrally formed by, but is not limited to, stamping.

[0191] S14, sequentially disposing a plurality of heat dissipation structures M along the circumferential direction E on the outer periphery of the motor housing 20, so that a plurality of first connecting members 11 are disposed around the outer periphery of the motor housing 20, and a plurality of heat dissipation fins 21 are disposed around the outer periphery of the motor housing 20 at intervals;

[0192] Among them, multiple heat dissipation structures M are arranged along the circumferential direction E along the outer periphery of the motor housing 20, so that the multiple heat dissipation structures M can be closer to the outer periphery of the motor housing 20 and are adapted to the outer diameter of the motor housing 20.

[0193] S15. Fixedly connect any two adjacent first connecting members 11, and fixedly connect any two adjacent second connecting members 31.

[0194] S15 and S14 may be performed simultaneously or alternately. For example, in the process of arranging any two heat dissipation structures M along the circumferential direction E on the periphery of the motor housing 20, two adjacent heat dissipation structures M may be fixedly connected by welding or the like.

[0195] The two adjacent heat dissipation structures M are fixedly connected, specifically, the first connecting members 11 of the two adjacent heat dissipation structures M are fixedly connected, and the second connecting members 31 of the two adjacent heat dissipation structures M are fixedly connected.

[0196] By adopting the above-mentioned technical solution, the radiator 10 can be set to multiple heat dissipation structures M. By splicing the multiple heat dissipation structures M in sequence along the circumferential direction E to the outer periphery of the motor housing 20, the radiator 10 can adapt to the outer diameter setting of the motor housing 20, so that the multiple radiators 10 are arranged together around the outer periphery of the motor housing 20, which helps to make the radiator 10 closer to the motor housing 20, so as to improve the thermal conductivity between the motor housing 20 and the radiator 10, and improve the heat dissipation effect of the motor 100.

[0197] In some embodiments, after the heat sink 10 is surrounded on the outer periphery of the motor housing 20 in step S10, so that the first connection structure 1 is arranged around the outer periphery of the motor housing 20, and the plurality of heat sinks 21 are spaced around the outer periphery of the motor housing 20, the following steps are also included:

[0198] S20 , disposing a first heat-conducting layer between the first connecting structure 1 and the motor housing 20 .

[0199] By providing a first heat-conducting layer between the first connecting structure 1 and the motor housing 20 , the heat-conducting efficiency between the radiator 10 and the motor housing 20 can be improved, thereby helping to improve the heat dissipation effect of the motor 100 .

[0200] In some embodiments, the method for processing the motor 100 may further include the following steps:

[0201] S30 , providing a second heat-conducting layer between the motor housing 20 and the outer peripheral wall of the stator 30 .

[0202] Among them, step S30 can be performed before step S10, or after step S10 and before step S20, or after step S20.

[0203] Such a configuration can improve the thermal conductivity between the stator 30 and the motor housing 20 , which helps to improve the efficiency of heat conduction from the stator 30 to the radiator 10 , thereby improving the heat dissipation effect of the motor 100 .

[0204] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A radiator, characterized in that: include: A first connection structure is arranged to extend in the circumferential direction and is used to surround the outer circumference of the motor housing; A heat dissipation assembly, comprising a plurality of heat dissipation fins; the plurality of heat dissipation fins are arranged on the first connection structure at intervals along the circumferential direction so as to surround the outer circumference of the motor housing; The second connection structure is arranged on the plurality of heat sinks to fix the plurality of heat sinks together.

2. The heat sink according to claim 1, characterized in that: The thickness of the heat sink is ∈[0.05mm, 0.5mm].

3. The heat sink according to claim 1, characterized in that: The first connection structure and the second connection structure are respectively arranged at two ends of the heat sink in the radial direction.

4. The heat sink according to claim 3, characterized in that: Any two adjacent heat sinks, the first connection structure and the second connection structure are arranged to form a heat dissipation space. The second connection structure is provided with a window, and the window is connected to one end of the heat dissipation space along the radial direction.

5. The heat sink according to claim 4, characterized in that: The second connection structure is provided with a plurality of groups of windows spaced apart along the circumferential direction, each group of windows is connected to each heat dissipation space, and at least one group of windows includes a plurality of spaced apart windows.

6. The heat sink according to claim 1, characterized in that Any two adjacent heat sinks and the first connection structure and the second connection structure are arranged to form a heat dissipation space, and the heat dissipation space axially penetrates one end or both ends of the heat sink.

7. The radiator according to any one of claims 1 to 6, characterized in that: The first connection structure is an integrally formed annular structure, and / or the second connection structure is an integrally formed annular structure.

8. The radiator according to any one of claims 1 to 6, characterized in that: The first connection structure includes a plurality of first connection members, which are arranged along the circumferential direction and are used to surround the outer circumference of the motor housing; each of the first connection members is arranged at one end of each of the heat sinks along the radial direction and is bent relative to the heat sink; two adjacent first connection members are fixedly connected.

9. The heat sink according to claim 8, characterized in that: The first connecting member comprises: A first connection portion is provided at one end of the heat sink along the radial direction and is bent relative to the heat sink; a first socket is provided at the connection between the first connection portion and the heat sink, and the first connection portions of the plurality of first connection members are arranged along the circumferential direction; The second connection portion is arranged at one end of the first connection portion away from the heat sink along the circumferential direction; the second connection portions of multiple first connection members are arranged along the circumferential direction, and the second connection portions are inserted into the first sockets of adjacent first connection members along the circumferential direction.

10. The heat sink according to claim 8, characterized in that The first connecting member and the heat sink are integrally formed.

11. The radiator according to any one of claims 1 to 6, characterized in that: The second connection structure includes a plurality of second connection members, which are arranged along the circumferential direction and are used to be arranged around the outer circumference of the motor housing; each second connection member is arranged at an end of each heat sink radially away from the first connection structure and is bent relative to the heat sink; two adjacent second connection members are fixedly connected.

12. The heat sink according to claim 11, characterized in that The second connecting member comprises: A third connection portion is provided at one end of the heat sink away from the first connection structure in the radial direction and is bent relative to the heat sink; a second socket is provided at the connection between the third connection portion and the heat sink, and the third connection portions of the plurality of second connection members are arranged along the circumferential direction; The fourth connection portion is arranged at one end of the third connection portion away from the heat sink along the circumferential direction; the fourth connection portions of multiple second connection members are arranged along the circumferential direction, and the fourth connection portions are inserted into the second sockets of adjacent second connection members along the circumferential direction.

13. The heat sink according to claim 11, characterized in that The second connecting member and the heat sink are integrally formed.

14. A motor, characterized in that: include: Motor housing; According to the radiator according to any one of claims 1 to 13, the first connection structure of the radiator surrounds the outer circumference of the motor housing, and the plurality of cooling fins of the radiator surround the outer circumference of the motor housing at intervals.

15. The motor according to claim 14, characterized in that A first heat-conducting layer is provided between the first connecting structure and the outer peripheral wall of the motor housing.

16. The electric machine according to claim 14 or 15, characterized in that The motor also includes: a stator, at least partially disposed within the motor housing; a rotor at least partially disposed within the stator; The second heat-conducting layer is arranged between the stator and the motor housing.

17. A method for processing a motor, characterized in that: Applicable to the motor according to any one of claims 14 to 16; the processing method of the motor comprises: The radiator is surrounded on the outer periphery of the motor shell, so that the first connection structure is arranged around the outer periphery of the motor shell, and a plurality of radiating fins are surrounded on the outer periphery of the motor shell at intervals.

18. The method for processing a motor according to claim 17, characterized in that: The heat sink is surrounded on the outer periphery of the motor housing so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing, including: The annular heat sink is sleeved on the outer periphery of the motor housing, so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing; Alternatively, the radiator is arranged on the outer periphery of the motor housing, and the two ends of the radiator along the circumferential direction are fixedly connected, so that the first connection structure is arranged around the outer periphery of the motor housing, and the plurality of heat sinks are spaced around the outer periphery of the motor housing.

19. The method for processing a motor according to claim 17, characterized in that: The heat sink is surrounded on the outer periphery of the motor housing so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing, including: The first connecting members of the first connecting structure, the second connecting members of the second connecting structure and the heat sinks form a heat dissipation structure; The plurality of heat dissipation structures are sequentially arranged on the outer periphery of the motor housing along the circumferential direction, so that the plurality of first connecting members are arranged around the outer periphery of the motor housing, and the plurality of heat dissipation fins are arranged around the outer periphery of the motor housing at intervals; Any two adjacent first connecting members are fixedly connected, and any two adjacent second connecting members are fixedly connected.

20. The method for processing a motor according to any one of claims 17 to 19, characterized in that: The heat sink is surrounded on the outer periphery of the motor housing so that the first connection structure is arranged around the outer periphery of the motor housing, and a plurality of heat sinks are spaced around the outer periphery of the motor housing, and further comprises: A first heat conducting layer is disposed between the first connecting structure and the outer peripheral wall of the motor housing.

Images