Motor, suspension system and vehicle

Abstract

The invention relates to the technical field of motors, in particular to a motor, a suspension system and a vehicle. The motor comprises a first assembly and a second assembly which can move relatively, the first assembly comprises a mandrel, the mandrel comprises a first section extending in the first direction, the first section comprises a first surface and a second surface, the first surface forms a guide rail in sliding connection with the second assembly of the motor, and the second surface is provided with a heat exchange runner. The heat exchange medium is used for circulation and heat exchange. The first surface of the first section of the mandrel is utilized to form the guide space, the second assembly moves in the guide space to output power, and the second surface of the first section is provided with the heat exchange runner, so that heat dissipation and cooling of the interior of the motor are realized on the basis of not additionally adding a cold plate structure, and the service life of the motor is prolonged. And the heat dissipation performance of the motor is improved under the condition of ensuring space requirements.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor, a suspension system and a vehicle. Background Art

[0002] A motor generally includes a stator and a mover. The stator includes an iron core and coil windings mounted on the core, while the mover is a magnetic component. When current flows through the stator coil windings, a magnetic field is generated. The mover is acted upon by this magnetic field and moves linearly along a linear track. To ensure structural and motion stability, the various components of the motor are compactly arranged, and the space requirements within the motor are high, making it difficult to add cooling components such as cold plate structures. Excessive heat accumulation within the motor can easily affect normal operation. How to improve heat dissipation performance while ensuring space requirements is one of the urgent issues to be addressed in this field. Summary of the Invention

[0003] The embodiments of the present application provide a motor, a suspension system, and a vehicle, which improve the heat dissipation performance of the motor while ensuring space requirements, so as to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of the present application, a motor is provided, comprising a first component and a second component that are movable relative to each other along a first direction, wherein the first component comprises:

[0005] a mandrel comprising a first segment extending in a first direction, the first segment comprising a first surface and a second surface;

[0006] The first surface forms a guide space for the movement of the second component;

[0007] The second surface is provided with a heat exchange channel for heat exchange medium to circulate.

[0008] Optionally, the heat exchange flow channel includes multiple ones.

[0009] Optionally, among the plurality of heat exchange channels, the longer the heat exchange channel, the wider the width.

[0010] Optionally, the heat exchange channel includes a first flow segment, a second flow segment and a third flow segment connected in sequence, the first flow segment and the third flow segment extend along the first direction, the water inlet end of the heat exchange channel is set in the first flow segment, and the water outlet end of the heat exchange channel is set in the third flow segment.

[0011] Optionally, the first flow segment, the second flow segment and the third flow segment are sequentially connected to form a U shape.

[0012] Optionally, each of the heat exchange channels forms an internal area on the second surface, and the heat exchange channels with relatively smaller lengths are arranged in the internal area surrounded by the heat exchange channels with relatively larger lengths.

[0013] Optionally, two heat exchange channels of equal length are arranged at intervals on the second surface.

[0014] Optionally, the first flow segments of the plurality of heat exchange channels have parallel parts, and in two adjacent heat exchange channels, the two first flow segments are adjacent and connected, and / or the two third flow segments are adjacent and connected.

[0015] Optionally, the mandrel further comprises:

[0016] The water inlet pipe and the water outlet pipe are used to connect to an external heat exchange medium supply device. The water inlet end of the heat exchange channel is connected to the water inlet pipe, and the water outlet end of the heat exchange channel is connected to the water outlet pipe.

[0017] Optionally, the core shaft further includes a second section extending along the first direction, the second section is connected to the first section, and the water inlet pipe and the water outlet pipe are arranged on an end surface of the second section facing away from the first section.

[0018] Optionally, the second section is provided with a mutually independent diversion cavity and a confluence cavity, and the plurality of heat exchange channels are connected with the water inlet pipe through the diversion cavity and are connected with the water outlet pipe through the confluence cavity.

[0019] Optionally, the diversion chamber and the confluence chamber extend to the first section respectively along the first direction; the first section is provided with a diversion hole and a confluence hole, the diversion hole connects the diversion chamber and the water inlet end of the heat exchange channel, and the confluence hole connects the confluence chamber and the water outlet end of the heat exchange channel.

[0020] Optionally, there are multiple diversion holes, and each of the heat exchange channels is connected to at least one diversion hole.

[0021] Optionally, there are multiple confluence holes, and each heat exchange channel is provided with at least one confluence hole.

[0022] Optionally, the diversion chamber includes multiple, the water inlet pipe includes multiple, and the multiple water inlet pipes correspond to the multiple diversion chambers.

[0023] Optionally, the confluence chambers include multiple, the water outlet pipes include multiple, and the multiple water outlet pipes correspond to the multiple confluence chambers.

[0024] Optionally, the first component further includes: a stator core, at least mounted on the second surface.

[0025] Optionally, the second component includes a guide rod, which moves relative to the first component along a first direction in the guide space to achieve guidance of relative movement between the first component and the second component.

[0026] Optionally, the first component further includes:

[0027] A covering member covers the second surface and is sealed to the second section.

[0028] Optionally, the cover includes a fourth surface facing the second surface, and grooves are provided on the second surface and / or the fourth surface to form the heat exchange channel.

[0029] According to a second aspect of the present application, a suspension system is provided, comprising the motor described in any one of the first aspects.

[0030] According to a third aspect of the present application, a vehicle is provided, comprising the suspension system described in the second aspect.

[0031] Through the above-mentioned technical solution, the present application utilizes the first surface of the first section of the core shaft to form a guide space, and the second component moves in the guide space to output power, and a plurality of heat exchange channels are provided on the second surface of the first section, thereby achieving heat dissipation and cooling inside the motor without adding an additional cold plate structure, thereby improving the heat dissipation performance of the motor while ensuring space requirements.

[0032] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0034] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0035] Figure 1 is a schematic diagram of the overall structure of a motor provided in an exemplary embodiment of the present disclosure;

[0036] Figure 2 yes Figure 1 AA cross-section of

[0037] Figure 3 yes Figure 1 BB cross-section diagram;

[0038] Figure 4 is a cross-sectional view of a first component provided in an exemplary embodiment of the present disclosure;

[0039] Figure 5 is a first component exploded view provided in an exemplary embodiment of the present disclosure;

[0040] Figure 6 yes Figure 5 CC cross-section diagram;

[0041] Figure 7 is a schematic structural diagram of a core shaft provided in an exemplary embodiment of the present disclosure;

[0042] Figure 8 is a schematic structural diagram of a heat exchange channel provided in an exemplary embodiment of the present disclosure;

[0043] Figure 9 is a schematic structural diagram of a heat exchange channel provided in another exemplary embodiment of the present disclosure;

[0044] Figure 10 is a structural schematic diagram of a heat exchange channel provided in another exemplary embodiment of the present disclosure;

[0045] Figure 11 is a schematic structural diagram of a heat exchange channel provided in yet another exemplary embodiment of the present disclosure;

[0046] Figure 12 is a schematic structural diagram of a heat exchange channel provided in another exemplary embodiment of the present disclosure;

[0047] Figure 13 yes Figure 5 Enlarged view of part D.

[0048] Description of reference numerals:

[0049] 1000-housing, 1100-first housing, 1200-second housing,

[0050] 2000-first assembly, 3000-second assembly, 3100-guide rod, 3200-magnetic steel,

[0051] 2100- stator core, 2110- core disk, 2120- winding,

[0052] 2200-core shaft,

[0053] 1-first section, 11-first surface, 12-second surface, 131-diverter hole, 132-collector hole,

[0054] 2-Second section, 21-End face, 22-Positioning face, 23-Mounting face,

[0055] 3-heat exchange channel, 31-first flow section, 32-second flow section, 33-third flow section,

[0056] 41-water inlet pipe, 42-water outlet pipe,

[0057] 51- diversion cavity, 52- confluence cavity,

[0058] 2300-cover, 61-third surface, 62-fourth surface,

[0059] 2400-Guided Space,

[0060] X - first direction. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0062] To improve the heat dissipation requirements, some technical solutions set up an additional cold plate structure in the motor for the circulation of heat exchange medium for heat exchange. Although this can improve the heat dissipation effect, it will increase the structural components, which is not conducive to the miniaturization requirements of the motor. In addition, the motor is in vibration for a long time, and the additional cold plate is prone to loose connection with the motor, which will bring shear stress during the vibration process, resulting in more serious damage and poor structural stability. In other technical solutions, it is considered to pass the heat exchange medium into the track cavity where the mover is located. This design has a better heat dissipation effect, but it has a greater impact on the operation of the motor. On the one hand, the heat exchange medium flowing through the air gap will increase the movement resistance and power loss of the mover. On the other hand, it is easy to increase the sealing risk of the motor. When the mover moves faster, the seal is prone to failure and leakage. Therefore, this solution is actually difficult to put into use.

[0063] There are also some technical solutions that consider setting the stator core in the center, designing the motor housing and the rotor as one, and setting a liquid cooling circuit in the center for heat dissipation. Although this design can dissipate heat in both directions from the inside and outside, the stator core is located in the center, which makes it easy for the heat of the winding to accumulate, and thus causes the heat dissipation burden of the liquid cooling pipeline in the center to be heavy. Due to the small pipeline space in the center, it is difficult to arrange larger or more liquid cooling pipelines to reduce the heat dissipation burden. The internal heat dissipation can only be indirectly improved by setting another liquid cooling pipeline outside the shell. Although this design can alleviate the internal heat dissipation problem to a certain extent, the large amount of heat generated by the internal stator core needs to be transferred step by step through the rotor and the shell and then heat exchanged with the external liquid cooling pipeline. The heat dissipation efficiency is low. In addition, it is not convenient for installation and maintenance.

[0064] In summary, in the current technical solution, it is difficult to add an additional cold plate structure inside the motor due to the high internal space requirement of the motor, and it is difficult to achieve a good heat dissipation effect inside the motor without adding an additional cold plate structure.

[0065] In view of the above problems, an embodiment of the present application provides a motor that improves the heat dissipation performance of the motor while ensuring space requirements.

[0066] like Figure 1 、 Figure 2 and Figure 3 As shown, the motor includes a first component 2000 and a second component 3000 , and the first component 2000 and the second component 3000 can move relative to each other along a first direction X.

[0067] The first assembly 2000 mentioned in this application includes one of the stator assembly and the mover assembly of the motor, and the second assembly 3000 includes the other of the stator assembly and the mover assembly of the motor.

[0068] Optionally, the motor further includes a housing 1000 for accommodating the first component 2000 and the second component 3000. The housing 1000 includes a first shell 1100 and a second shell 1200. The first shell 1100 is fixedly connected to the first component 2000, and the second shell 1200 is fixedly connected to the second component 3000. The first shell 1100 and the second shell 1200 are slidably connected so that the first component 2000 and the second component 3000 are both within the housing when they are relatively extended or shortened along the first direction X. In some embodiments, the first component 2000 includes the first shell 1100. In other words, the first shell 1100 can be considered as part of the first component 2000; the second component 3000 includes the second shell 1200. In other words, the second shell 1200 can be considered as part of the second component 3000.

[0069] This application is described in detail as follows: the first component 2000 includes a stator component, and the second component 3000 includes a mover component.

[0070] like Figure 1 、 Figure 2 and Figure 3 As shown, the first assembly 2000 includes a stator core 2100 and a core shaft 2200 .

[0071] The stator core 2100 includes a plurality of core disks 2110 and a plurality of windings 2120 . The plurality of core disks 2110 are stacked in sequence, and the plurality of windings 2120 are arranged outside the stacked core disks 2110 .

[0072] Combine Figure 4 As shown, the first assembly 2000 includes a mandrel 2200 .

[0073] The core shaft 2200 serves as a component for fixing the stator core 2100 and installing the second component 3000 , so that the second component 3000 can move linearly along the first direction X under the action of the magnetic field force generated by the stator core 2100 .

[0074] The stator core 2100 is fixedly connected to the outside of the core shaft 2200. As an example, the multiple core disks 2110 of the stator core 2100 are stacked in sequence along the extension direction of the core shaft 2200. The multiple core disks 2110 are fixedly connected to the core shaft 2200. The fixed connection method can be one of welding, bonding, heat-shrink fastening, potting and gluing, or a combination of multiple methods.

[0075] The core shaft 2200 includes a first section 1 extending along a first direction X. The first section 1 is used to set a slidable second component 3000. The first section 1 can be used to set a track or form a track itself to install the second component 3000. Figure 5 and Figure 6 As shown, the first section 1 includes a first surface 11 and a second surface 12. The first surface 11 forms a guide space 2400 for the movement of the second component 3000. As an example, the first surface 11 encloses a cylindrical guide space 2400. Under the action of the first surface 11, the second component 3000 is restricted to movement only along the first direction X, thereby preventing the second component 3000 from eccentricity or deflection during movement.

[0076] For example, please combine Figure 2 and Figure 4As shown, the second assembly 3000 includes a guide rod 3100 and a magnet 3200. The magnet 3200 is disposed on the inner surface of the second housing 1200 and is located between the second housing 1200 and the stator core 2100. The guide rod 3100 is disposed on the inner surface of the second housing 1200 and is slidably inserted into the guide space 2400. The axial direction of the guide rod 3100 is along the first direction X, and the guide space 2400 extends along the first direction X. The guide rod 3100 moves relative to the first assembly 3000 in the guide space 2400 along the first direction X to guide the relative movement between the first assembly 2000 and the second assembly 3000.

[0077] The second surface 12 is provided with a heat exchange channel 3 for circulating a heat exchange medium. Thus, without adding an additional cold plate structure, the heat exchange channel 3 is directly provided on the second surface 12 of the first component 2000 to exchange heat and cool the second component 3000 and the stator core 2100.

[0078] In addition, the heat exchange channel 3 and the second component 3000 are respectively arranged on the first surface 11 and the second surface 12 to be separated from each other, which can avoid the heat exchange medium from generating resistance to the high-speed movement of the second component 3000 and also avoid the movement from causing adverse effects on the sealing of the heat exchange channel.

[0079] like Figure 7 As shown, the embodiment of the present application is described in detail with the first component 2000 being a cylindrical structure and the motor being a cylindrical motor. It is understandable that in other embodiments, the first component 2000 can also be used for a flat motor or a U-shaped slot motor, or the structure of the first component 2000 can be configured as a flat plate, etc.

[0080] Combine Figure 6 and Figure 7 The first section 1 comprises a tubular structure, with a first surface 11 forming the annular inner wall of the tubular structure, and a second surface 12 forming the annular outer wall of the tubular structure. The first surface 11 encloses a guide space 2400 extending along a first direction X. The second assembly 3000 can be mounted within the guide space 2400. The guide space 2400 also serves as a track defining the movement path of the second assembly 3000, allowing the second assembly 3000 to move linearly along the first direction X under the influence of the magnetic field force generated by the stator core 2100.

[0081] like Figure 7 As shown, the flow path of the heat exchange channel 3 extends along the first direction X, and the heat exchange channel 3 extends from one end of the first section 1 in the first direction X to the other end, thereby performing heat exchange on the entire first section 1.

[0082] In some embodiments, the second surface 12 is provided with a plurality of heat exchange channels 3. Under the same flow rate, the more heat exchange channels 3 there are, the narrower the single heat exchange channel 3 is. The narrow gap is used to enhance heat exchange, so as to further reduce the heat accumulation of the motor in the first section 1 and improve the heat dissipation performance.

[0083] In some embodiments, as Figure 8 As shown, multiple heat exchange channels 3 are arranged in parallel and have various lengths and widths. Optionally, among the multiple heat exchange channels 3, the longer the heat exchange channels 3, the wider the width. Through this arrangement, the heat exchange channels 3 with longer flow paths have larger widths and larger instantaneous flow rates, while the heat exchange channels 3 with shorter flow paths have smaller widths and smaller instantaneous flow rates. This makes the flow resistance of each heat exchange channel 3 approach the same, and reduces the flow resistance of each heat exchange channel 3, which is conducive to the rapid circulation of the heat exchange medium, thereby improving heat exchange efficiency.

[0084] The heat exchange channel 3 includes a first flow segment 31, a second flow segment 32, and a third flow segment 33. The first flow segment 31, the second flow segment 32, and the third flow segment 33 are connected in sequence and extend along the first direction X. The water inlet of the heat exchange channel 3 is located in the first flow segment 31, and the water outlet of the heat exchange channel 3 is located in the third flow segment 33. With this arrangement, the heat exchange medium in the multiple heat exchange channels 3 flows and exchanges heat generally along the first direction X, thereby cooling the entire first section 1 of the core shaft 2200. Furthermore, the first flow segments 31 of the multiple heat exchange channels 3 are parallel, the second flow segments 32 of the multiple heat exchange channels 3 are parallel, and the third flow segments 33 of the multiple heat exchange channels 3 are parallel. This allows the multiple heat exchange channels 3 to be distributed relatively densely and evenly on the second surface 12, thereby improving the cooling rate and temperature uniformity.

[0085] As an example, the first flow section 31, the second flow section 32, and the third flow section 33 are sequentially connected to form a U-shape. Thus, the water inlet and outlet of the heat exchange channel 3 can be set at the same end of the first section 1, which is convenient for connection with an external heat exchange medium supply device.

[0086] In some embodiments, see Figure 5 and Figure 8 As shown, each heat exchange channel 3 forms an inner region on the second surface 12, and relatively smaller heat exchange channels 3 are disposed within the inner region enclosed by relatively larger heat exchange channels 3. Multiple heat exchange channels 3 of varying lengths are nested on the second surface 12, thereby arranging a greater number of heat exchange channels 3 within a limited space and improving heat exchange efficiency and uniformity.

[0087] In some embodiments, as Figure 9As shown, in two adjacent heat exchange channels 3, the two first flow segments 31 are adjacent and connected. As mentioned above, the first flow segments 31 of the plurality of heat exchange channels 3 are parallel. Therefore, the first flow segments 31 of the plurality of heat exchange channels 3 have parallel sections. By connecting the parallel sections of two adjacent first flow segments 31, the width of the heat exchange channel 3 at the parallel section is increased, thereby further reducing the flow resistance.

[0088] It can be understood that the connection mentioned in this application refers to the elimination of the spacing distance between the parallel parts of two adjacent first flow segments 31, thereby, on the one hand, forming a flow channel with a wider width in the parallel parts of the two first flow segments 31, and on the other hand, making the two heat exchange flow channels 3 more closely distributed, and more heat exchange flow channels 3 can be set under the same area to improve the heat dissipation effect.

[0089] Similarly, if Figure 9 As shown, the parallel portions of the two third flow segments 33 in two adjacent heat exchange channels 3 are connected. That is, the spacing between the parallel portions of the two adjacent third flow segments 33 is eliminated, forming a wider channel in the parallel portions of the two third flow segments 33. On the other hand, the two heat exchange channels 3 are distributed more closely, allowing more heat exchange channels 3 to be provided within the same area, thereby improving the heat dissipation effect.

[0090] Figure 9 , an example of connecting the parallel portions of two adjacent first flow segments 31 is shown, and an example of connecting the parallel portions of two adjacent third flow segments 33 is shown.

[0091] In other embodiments, Figure 10 As shown, the parallel parts of the first flow sections 31 of the plurality of heat exchange channels 3 can also be connected, and / or the parallel parts of the third flow sections 33 of the plurality of heat exchange channels 3 can be connected. Figure 10 As shown, as an example, the spacing between the first flow segment 31 of the inner heat exchange channel 3 and the parallel portion of the first flow segment 31 of the middle heat exchange channel 3 can be eliminated, and the spacing between the first flow segment 31 of the middle heat exchange channel 3 and the parallel portion of the first flow segment 31 of the outer heat exchange channel 3 can also be eliminated. This arrangement not only reduces flow resistance, but also gradually reduces the width of the first flow segment 31 as the heat exchange medium is gradually diverted, making the flow resistance in each heat exchange channel 3 relatively close, which is conducive to uniform heat exchange in each section. Similarly, the spacing between the third flow segment 33 of the inner heat exchange channel 3 and the parallel portion of the third flow segment 33 of the middle heat exchange channel 3 can be eliminated, and the spacing between the third flow segment 33 of the middle heat exchange channel 3 and the parallel portion of the third flow segment 33 of the outer heat exchange channel 3 can also be eliminated.

[0092] In some embodiments, as Figure 11 As shown, two heat exchange channels 3 of equal length are spaced apart on the second surface 12 .

[0093] As an example, consider Figure 7 and Figure 11 As shown, the second surface 12 is the outer circumferential surface of the first section 1. Two heat exchange channels 3 are spaced apart along the circumference of the first section 1, thereby dissipating heat to different circumferential locations of the second surface 12 and improving heat dissipation uniformity. By spacing out the two heat exchange channels 3 of equal length, the two heat exchange channels 3 enclose two independent internal regions on the second surface 12. Furthermore, smaller heat exchange channels 3 are arranged within these two non-overlapping internal regions, further improving heat dissipation uniformity.

[0094] In some embodiments, the first flow segments 31 of two heat exchange channels 3 of equal length are adjacent or the third flow segments 33 are adjacent, so that two equal and adjacent heat exchange channels 3 have parallel sections with the same flow direction, thereby eliminating the interval between the parallel sections to form a channel with a larger width. Figure 12 As shown, two heat exchange channels 3 of equal length are configured so that the third flow sections 33 are adjacent to each other, and the two third flow sections 33 are connected.

[0095] In the above embodiment, by eliminating the spacing distance between the parallel parts, the water inlet ends of two adjacent heat exchange channels 3 are merged into one, and / or the water outlet ends of two adjacent heat exchange channels 3 are merged into one, which can reduce the number of connecting joints or increase the size of a single connecting joint. For motor structures with smaller air gaps, this greatly reduces the manufacturing difficulty and installation difficulty.

[0096] In some embodiments, the core shaft 2200 also includes a water inlet pipe 41 and a water outlet pipe 42. The water inlet end of the heat exchange channel 3 is connected to the water inlet pipe 41, and the water outlet end of the heat exchange channel 3 is connected to the water outlet pipe 42. By setting the water inlet pipe 41 and the water outlet pipe 42, it is convenient to connect with the external heat exchange medium supply device.

[0097] The heat exchange media mentioned in this application include water, air, silicone oil, mineral oil, fluorinated liquid, ester liquid, etc. These heat exchange media can be stored in a heat exchange medium supply device, which includes a storage container and a power mechanism. The storage container is connected to the heat exchange flow channel 3. The power mechanism drives the heat exchange medium from the storage container to the heat exchange flow channel 3 and flows out to achieve the purpose of heat exchange. Heat exchange refers to the heat exchange between the heat exchange medium and the motor. Under some working conditions, the motor can be cooled to avoid overheating and damage to the motor; under other working conditions, such as under extremely cold conditions, the motor can also be heated to keep it at a suitable working temperature to ensure normal and efficient operation of the motor.

[0098] Please refer to Figure 5and Figure 6 As shown, the core shaft 2200 also includes a second section 2 extending along a first direction X. The second section 2 is connected to the first section 1. The water inlet pipe 41 and the water outlet pipe 42 are arranged on the end surface 21 of the second section 2 facing away from the first section 1. This arrangement keeps the water inlet pipe 41 and the water outlet pipe 42 away from the second assembly 3000 and less susceptible to disturbance by the high-speed movement of the second assembly 3000. This reduces the possibility of damage to the connection and improves sealing performance. Furthermore, the heat exchange medium flows along the entire core shaft 2200, cooling not only the first section 1 (where the second assembly 3000 is located) but also the second section 2 (where the second assembly 3000 is not located), thereby improving the heat dissipation performance of the motor.

[0099] In some embodiments, as Figure 6 As shown, the second section 2 is provided with a mutually independent diversion cavity 51 and a confluence cavity 52 , and the plurality of heat exchange channels 3 are connected with the water inlet pipe 41 through the diversion cavity 51 and with the water outlet pipe 42 through the confluence cavity 52 .

[0100] After the heat exchange medium in the water inlet pipe 41 fills the diversion chamber 51, it is distributed to multiple heat exchange channels 3. Therefore, only one water inlet pipe 41 needs to be set in the diversion chamber 51 to supply heat exchange medium to multiple heat exchange channels 3; similarly, by setting the confluence chamber 52, only one water outlet pipe 42 needs to be set in the confluence to lead out the heat exchange medium in multiple heat exchange channels 3, which greatly reduces the number of connection joints.

[0101] In addition, by setting up the diversion chamber 51 and the converging chamber 52 in combination with multiple heat exchange channels 3, not only can the narrow gap enhanced heat exchange be achieved through multiple heat exchange channels 3, but the installation structure is also simplified under the action of the diversion chamber 51 and the converging chamber 52, and the problem of larger flow resistance of the heat exchange medium at the joint due to smaller joints is avoided.

[0102] In some embodiments, as Figure 6 As shown, the diversion chamber 51 and the confluence chamber 52 extend to the first section 1 along the first direction X respectively. The first section 1 is provided with a diversion hole 131 and a confluence hole 132. The diversion hole 131 connects the diversion chamber 51 and the water inlet end of the heat exchange channel 3, and the confluence hole 132 connects the confluence chamber 52 and the water outlet end of the heat exchange channel 3.

[0103] As an example, Figure 6As shown, the core shaft 2200 is generally cylindrical, with the first section 1 being a tubular structure, one end of which is closed by an isolation component. The second section 2 is connected to the end of the first section 1 having the isolation component. The diverter chamber 51 and the converging chamber 52 extend from the end of the second section 2 facing away from the first section 1 into the isolation component, respectively. The diverter chamber 51 corresponds to the water inlet end of the heat exchange channel 3, and the converging chamber 52 corresponds to the water outlet end of the heat exchange channel 3. The diverter chamber 51 is connected to the water inlet end of the heat exchange channel 3 through the diverter hole 131, and the converging chamber 52 is connected to the water outlet end of the heat exchange channel 3 through the converging hole 132. This arrangement ensures that the heat exchange channel 3, the diverter chamber 51, and the converging chamber 52 are separated from the second component 3000 while meeting the diversion and converging requirements of the heat exchange channel 3, thereby avoiding adverse effects on the installation and movement of the second component 3000.

[0104] In some embodiments, as Figure 13 As shown, there are multiple diverter holes 131, each of which communicates with the water inlet of at least one heat exchange channel 3. By designing the number of diverter holes 131, the flow rate of the heat exchange channel 3 can be easily tailored to the needs. As an example, each heat exchange channel 3 communicates with the diverter cavity 51 via one or two diverter holes 131. Wider heat exchange channels 3 are provided with two diverter holes 131 to meet larger flow requirements.

[0105] In some embodiments, the flow area of the diverter hole 131 connected to the heat exchange channel 3 can also be designed. For example, a diverter hole 131 with a larger flow area is set in the heat exchange channel 3 with a wider width to meet the flow design requirements.

[0106] In some embodiments, as Figure 13 As shown, there are multiple confluence holes 132, each of which is connected to the water outlet of at least one heat exchange channel 3. By designing the number of confluence holes 132, the flow rate of the heat exchange channel 3 can be easily designed according to needs. As an example, each heat exchange channel 3 is connected to the diversion cavity 51 through one or two diversion holes 131. In particular, two diversion holes 131 are provided in the wider heat exchange channel 3 to meet the larger flow demand.

[0107] In some embodiments, the flow area of the diverter hole 131 connected to the heat exchange channel 3 can also be designed. For example, a diverter hole 131 with a larger flow area is set in the heat exchange channel 3 with a wider width to meet the flow design requirements.

[0108] By setting the flow area of each diversion hole 131 unchanged and increasing the number of diversion holes 131 to meet the large flow demand, there is no need to use punching equipment of different specifications for processing, making the processing more convenient.

[0109] In some embodiments, the plurality of diversion cavities 51 and the plurality of water inlet pipes 41 correspond to the plurality of diversion cavities 51 .

[0110] In some embodiments, the confluence chamber 52 includes multiple confluence chambers, the water outlet pipes 42 include multiple water outlet pipes 42 , and the multiple confluence chambers 52 correspond to the multiple water outlet pipes 42 .

[0111] As an example, Figure 11 The scheme shown, for Figure 11 The two heat exchange channels 3, one long and one short, on the left side of the middle portion can be provided with a diversion cavity 51 communicating with the first flow section 31 of the two heat exchange channels 3, and a confluence cavity 52 communicating with the third flow section 33 of the two heat exchange channels 3; in addition, Figure 11 The two heat exchange channels 3, one long and one short, on the middle right side can be provided with another diverter cavity 51 communicating with the first flow segments 31 of the two heat exchange channels 3, and another converging cavity 52 communicating with the third flow segments 33 of the two heat exchange channels 3. In other words, two diverter cavities 51 and two converging cavities 52 are provided in the core shaft 2200.

[0112] As another example, Figure 12 In the illustrated embodiment, two diversion chambers 51 and one confluence chamber 52 are provided in the core shaft 2200 .

[0113] In the embodiment of the present application, the diversion chamber 51 and the confluence chamber 52 can be integrally formed during the casting process of the core shaft 2200, or a cavity can be provided in the core shaft 2200 and then a partition is provided to separate the diversion chamber 51 and the confluence chamber 52 to form independent diversion chambers 51 and confluence chambers 52. Optionally, the partition is made of a heat-insulating material, such as a plastic material such as ABS, PP, or PEEK.

[0114] In addition, the water inlet pipe 41 and the water outlet pipe 42 can be integrally formed on the core shaft 2200 during the casting process, or an end cap can be provided to seal the cavity of the core shaft 2200, and the water inlet pipe 41 and the water outlet pipe 42 are provided on the end cap. Optionally, the end cap is made of a non-magnetic material, such as a heat-treated and strengthened aluminum alloy.

[0115] In some embodiments, the cross-sectional area of the diversion chamber 51 is larger than the water inlet pipe 41 and larger than the multiple heat exchange channels 3, thereby ensuring that the diversion chamber 51 is always filled with sufficient heat exchange medium, avoiding uneven distribution of heat exchange medium due to lack of heat exchange medium or insufficient pressure.

[0116] As previously described, in one embodiment provided herein, the first section 1 is a tubular structure, the first surface 11 is the annular inner wall of the tubular structure, and the second surface 12 is the annular outer wall of the tubular structure. Thus, the first surface 11 and the second surface 12 are arranged radially opposite each other along the tubular structure, and the second surface 12 is configured to face the stator core 2100. This arrangement allows the heat exchange channel 3 to be located between the stator core 2100 and the second assembly 3000, and closer to the stator core 2100, thereby improving the cooling effect on the stator core 2100 winding 2120 located at the first section 1.

[0117] In an embodiment where the first section 1 is not a tubular structure (not shown in the figure), the first surface 11 and the second surface 12 are arranged relative to each other along a second direction, and the second direction is perpendicular to the first direction X. The stator core 2100 is installed on the second surface 12 to achieve the setting of the heat exchange channel 3 between the stator core 2100 and the second component 3000 and closer to the stator core 2100, so as to better dissipate heat from the stator core 2100 and prevent the winding 2120 from heating and drying.

[0118] In some embodiments, see Figure 4 and Figure 5 As shown, the surface of the second section 2 includes a positioning surface 22 and a mounting surface 23. The positioning surface 22 is used to position the stator core 2100. The mounting surface 23 is connected to the second surface 12. The mounting surface 23 and the second surface 12 correspond to the positions of the stator core 2100. In other words, when arranging the stator core 2100, multiple core disks 2110 are stacked starting from the positioning surface 22 and gradually covering the mounting surface 23 and the second surface 12 along the first direction X. Finally, the core disks 2110 are fixedly connected to the core shaft 2200. The fixing method includes one or a combination of welding, bonding, shrink-fitting, and potting.

[0119] In some embodiments, the second surface 12 is recessed relative to the mounting surface 23 in a direction away from the stator core 2100 to form a space for accommodating the heat exchange channel 3. This configuration protects the heat exchange channel 3 and reduces the pressure on the heat exchange channel 3 to prevent deformation.

[0120] In some embodiments, please combine Figure 4 、 Figure 5 and Figure 6 As shown, the first component 2000 further includes a cover 2300, which covers the second surface 12 and is sealed to the second section 2. The heat exchange channel 3 is further protected by providing the cover 2300.

[0121] In some embodiments, please combine Figure 4 、 Figure 5 and Figure 6As shown, the cover 2300 includes a third surface 61 facing away from the second surface 12, and the third surface 61 is flush with the mounting surface 23. By so configuring, the specifications of the core disk 2110 and the winding 2120 are consistent, which facilitates processing and assembly.

[0122] In some embodiments, please combine Figure 5 and Figure 6 As shown, the cover 2300 includes a fourth surface 62 facing the second surface 12 , and a heat exchange channel 3 is formed by providing grooves on the second surface 12 and / or the fourth surface 62 .

[0123] As an example, Figure 5 and Figure 6 As shown, a groove is formed from the second surface 12 of the first section 1 toward the first surface 11 to serve as a heat exchange channel 3 .

[0124] As another example, not shown in the figures, a groove is formed from the fourth surface 62 of the cover 2300 toward the third surface 61 to serve as the heat exchange channel 3.

[0125] As another example, not shown in the figures, a groove is formed by recessing from the second surface 12 of the first section 1 toward the first surface 11, while a groove is formed by recessing from the fourth surface 62 of the cover 2300 toward the third surface 61. The grooves on the first section 1 and the cover 2300 both serve as heat exchange channels 3. Alternatively, the positions of the grooves on the first section 1 and the grooves on the cover 2300 correspond, thereby enclosing and forming the heat exchange channels 3 and increasing the flow area of the heat exchange channels 3. Alternatively, the positions of the grooves on the first section 1 and the grooves on the cover 2300 are staggered. This reduces the slot density of the first section 1 and the cover 2300 without reducing the distribution density of the heat exchange channels 3, thereby increasing the structural rigidity of the second section 2 and the cover 2300 and making them less susceptible to deformation.

[0126] In the embodiment where the second section 2 is a tubular structure, the covering member 2300 includes a sleeve structure sleeved on the second section 2 .

[0127] As an example, the core disk 2110, the core shaft 2200, and the cover 2300 are all made of magnetic conductive materials, such as magnetic steel or silicon steel sheets.

[0128] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0129] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0130] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0131] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A motor, characterized in that: The invention comprises a first component and a second component which are movable relative to each other along a first direction, wherein the first component comprises: a mandrel comprising a first section extending along the first direction, the first section comprising a first surface and a second surface; The first surface forms a guide space for the movement of the second component; The second surface is provided with a heat exchange channel for heat exchange medium to circulate.

2. The motor according to claim 1, characterized in that The heat exchange flow channels include a plurality of channels.

3. The motor according to claim 2, characterized in that Among the plurality of heat exchange channels, the heat exchange channels with longer lengths have wider widths.

4. The motor according to claim 2, characterized in that The heat exchange channel includes a first flow segment, a second flow segment and a third flow segment connected in sequence, the first flow segment and the third flow segment extend along the first direction, the water inlet end of the heat exchange channel is set in the first flow segment, and the water outlet end of the heat exchange channel is set in the third flow segment.

5. The motor according to claim 4, characterized in that The first flow segment, the second flow segment and the third flow segment are sequentially connected to form a U shape.

6. The motor according to claim 5, characterized in that Each of the heat exchange channels forms an inner region on the second surface, and the heat exchange channels with relatively smaller lengths are arranged in the inner region formed by the heat exchange channels with relatively larger lengths.

7. The motor according to claim 6, characterized in that The two heat exchange channels of equal length are arranged at intervals on the second surface.

8. The motor according to any one of claims 4 to 7, characterized in that: In two adjacent heat exchange flow channels, the two first flow sections are adjacent to and connected to each other, and / or the two third flow sections are adjacent to and connected to each other.

9. The motor according to claim 1, characterized in that The mandrel further comprises: The water inlet pipe and the water outlet pipe are used to connect to an external heat exchange medium supply device. The water inlet end of the heat exchange channel is connected to the water inlet pipe, and the water outlet end of the heat exchange channel is connected to the water outlet pipe.

10. The motor according to claim 9, characterized in that The core shaft further includes a second section extending along the first direction, the second section is connected to the first section, and the water inlet pipe and the water outlet pipe are arranged on an end surface of the second section facing away from the first section.

11. The motor according to claim 10, characterized in that The second section is provided with a mutually independent diversion cavity and a confluence cavity, and the plurality of heat exchange channels are connected with the water inlet pipe through the diversion cavity and are connected with the water outlet pipe through the confluence cavity.

12. The motor according to claim 11, characterized in that The diversion cavity and the confluence cavity extend to the first section respectively along the first direction; The first section is provided with a diversion hole and a confluence hole, the diversion hole is connected to the diversion cavity and the water inlet end of the heat exchange channel, and the confluence hole is connected to the confluence cavity and the water outlet end of the heat exchange channel.

13. The motor according to claim 12, characterized in that There are multiple diversion holes, and each of the heat exchange channels is connected to at least one diversion hole.

14. The motor according to claim 12, characterized in that There are multiple confluence holes, and each heat exchange channel is provided with at least one confluence hole.

15. The motor according to claim 11, characterized in that The plurality of diversion cavities includes a plurality of the water inlet pipes, and the plurality of the water inlet pipes corresponds to the plurality of the diversion cavities; and / or The confluence chambers include a plurality of the water outlet pipes, and the plurality of the water outlet pipes correspond to the plurality of the confluence chambers.

16. The motor according to claim 1, characterized in that The first component further includes: a stator core, which is at least installed on the second surface.

17. The motor according to claim 1, characterized in that The second component includes a guide rod, which moves relative to the first component along a first direction in the guide space to achieve guidance of relative movement between the first component and the second component.

18. The motor according to claim 17, characterized in that The first component also includes: A covering member covers the second surface and is sealed to the second section.

19. The motor according to claim 18, characterized in that The cover includes a fourth surface facing the second surface, and grooves are provided on the second surface and / or the fourth surface to form the heat exchange channel.

20. A suspension system, characterized in that: The motor comprises the motor described in any one of claims 1-19.

21. A vehicle, characterized in that: Comprising the suspension system of claim 20.

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