Motor, suspension system and vehicle

Abstract

The invention discloses a motor, a suspension system and a vehicle. The motor comprises a secondary assembly and a primary assembly, the secondary assembly comprises a shell, the shell is provided with an inner wall face and an outer wall face, a containing cavity is defined by the inner wall face, the primary assembly is located in the containing cavity and divides the containing cavity into a first cavity part and a second cavity part, the shell is provided with a first communication groove, and the first communication groove communicates with the first cavity part and the second cavity part; the first communicating groove is formed between the inner wall face and the outer wall face. According to the motor provided by the invention, the first communication groove is formed, so that the gas in the first cavity part and the gas in the second cavity part are communicated, and when the motor starts to work and the first cavity part and the second cavity part can generate a pressure difference, the gas can circulate between the first cavity part and the second cavity part through the first communication groove; and the pressure difference in the accommodating cavity is further balanced more quickly.

Description

Technical Field

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

[0002] In related technologies, a motor includes a housing, a primary assembly, and a secondary assembly. The housing is separated into a first cavity and a second cavity by the primary assembly. During operation, a pressure difference exists between the first and second cavities, affecting the reciprocating motion of the secondary assembly. This pressure difference causes thrust fluctuations and increases energy loss, thus leaving room for improvement. Summary of the Invention

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes a motor that is conducive to balancing the pressure difference between the first cavity portion and the second cavity portion.

[0004] The present application also proposes a suspension system having the above motor.

[0005] The present application also proposes a vehicle having the above suspension system.

[0006] According to an embodiment of the present application, the motor includes a secondary component and a primary component, the secondary component includes a shell, the shell has an inner wall surface and an outer wall surface, the inner wall surface forms an accommodating cavity, the primary component is located in the accommodating cavity, the primary component divides the accommodating cavity into a first cavity portion and a second cavity portion, the shell is provided with a first connecting groove, the first connecting groove connects the first cavity portion and the second cavity portion, and the first connecting groove is provided between the inner wall surface and the outer wall surface.

[0007] According to the motor of the embodiment of the present application, a first connecting groove is provided to connect the gases in the first cavity portion and the second cavity portion. When the motor starts working, a pressure difference is generated between the first cavity portion and the second cavity portion. The gas can flow between the first cavity portion and the second cavity portion through the first connecting groove, thereby balancing the pressure difference in the accommodating cavity more quickly.

[0008] According to some embodiments of the motor of the present application, the shell includes a shell body and a stop wall, the stop wall is connected to the shell body, the shell body is constructed as a cylindrical structure, the stop wall extends along the radial direction of the shell toward the axis of the shell, and the stop wall is provided with a core shaft hole for the core shaft to pass through; the first connecting groove includes a first groove first section and a first groove second section, the first groove first section is arranged in the shell body and extends along the axial direction of the shell, the first groove second section is arranged in the stop wall and extends along the radial direction of the shell to the core shaft hole, and the extension length of the first groove second section is less than the extension length of the first groove first section.

[0009] According to the motor of some embodiments of the present application, the secondary component further includes a magnet, which is disposed in the accommodating cavity and fixed to the inner wall surface.

[0010] According to some embodiments of the present application, the motor further includes a cover plate, which is mounted on the housing. A second communicating groove is provided in the cover plate, and the second communicating groove connects the first communicating groove and the second cavity portion.

[0011] According to the motor of some embodiments of the present application, the housing includes a housing body and a stop wall, the stop wall is connected to the housing body, the housing body is constructed as a cylindrical structure, and the stop wall extends along the radial direction of the housing toward the axis of the housing.

[0012] According to the motor of some embodiments of the present application, the secondary component also includes a magnet, which is fixed to the shell body, and is located between the stop wall and the cover plate, with one end of the magnet abutting the stop wall and the other end of the magnet abutting the cover plate.

[0013] According to some embodiments of the motor of the present application, the cover plate is constructed as an annular structure and has an inner wall, an outer wall, a first end wall and a second end wall, and the second connecting groove has a first interface and a second interface, the first interface is located at the first end wall, and the second interface is located at the inner wall.

[0014] According to the motor of some embodiments of the present application, one of the cover plate and the housing has a pin, and the other has a socket, and the pin is plug-fitted with the socket.

[0015] According to some embodiments of the motor of the present application, there are multiple first communicating grooves, and the multiple first communicating grooves are arranged at intervals along the circumference of the shell. Two adjacent first communicating grooves are separated by a connecting wall, and the second communicating grooves correspond to and are connected to the first communicating grooves one by one.

[0016] According to the motor of some embodiments of the present application, a guide rod hole is opened on the cover plate, and the guide rod hole is for the guide rod to pass through. The second connecting groove includes a second groove first section and a second groove second section. The second groove first section extends along the axial direction of the shell and the second groove first section is connected to the first connecting groove. The second groove second section extends along the radial direction of the shell to the guide rod hole.

[0017] According to some embodiments of the motor of the present application, at least one of the first connecting groove and the second connecting groove includes a groove body and a sedimentation groove, the sedimentation groove is connected to the groove body, and the distance between the sedimentation groove and the accommodating cavity is smaller than the distance between the groove body and the accommodating cavity.

[0018] According to the motor of some embodiments of the present application, the second connecting groove has a first interface and a second interface, the first interface is connected to the first connecting groove, and a breathable membrane is provided at the second interface, and the breathable membrane blocks the second interface.

[0019] According to some embodiments of the present application, the motor further includes a core shaft and a guide rod, one end of the core shaft extends into the housing, the primary component is sleeved on the outer circumference of the core shaft and fixed relative to the core shaft, the core shaft has a guide channel, the guide channel extends along the axial direction of the core shaft, the guide rod passes through the cover plate, at least a portion of the guide rod can be slidably accommodated in the guide channel, and the guide rod is guided and cooperated with the guide channel.

[0020] According to some further embodiments of the present application, the suspension system includes the above-mentioned motor.

[0021] According to the suspension system of the embodiment of the present application, its motor is provided with a first connecting groove to connect the gas in the first cavity part and the second cavity part. When the motor starts working, a pressure difference will be generated between the first cavity part and the second cavity part. The gas can flow between the first cavity part and the second cavity part through the first connecting groove, thereby balancing the pressure difference in the accommodating cavity more quickly.

[0022] According to the motor of some embodiments of the present application, the suspension system also includes a fork arm, which includes a fork arm body and a fork arm boss, the fork arm body is connected to the shell, the fork arm boss is connected to the fork arm body, the fork arm boss protrudes toward the cover plate relative to the fork arm body, and the fork arm boss stops at the cover plate.

[0023] Vehicles according to still other embodiments of the present application include the above-mentioned suspension system.

[0024] According to the vehicle of the embodiment of the present application, the motor of its suspension system is connected to the gas in the first cavity part and the second cavity part by setting a first connecting groove. When the motor starts working, a pressure difference will be generated between the first cavity part and the second cavity part. The gas can flow between the first cavity part and the second cavity part through the first connecting groove, thereby balancing the pressure difference in the accommodating cavity more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of a motor according to an embodiment of the present application;

[0026] Figure 2 is a cross-sectional view of a motor according to an embodiment of the present application;

[0027] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0029] Figure 5 yes Figure 2 Cross-section of the middle CC;

[0030] Figure 6 is a schematic diagram of a cover plate according to an embodiment of the present application;

[0031] Figure 7 is a schematic diagram of a cover plate according to an embodiment of the present application;

[0032] Figure 8 is a schematic diagram of a suspension system according to an embodiment of the present application;

[0033] Figure 9 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0034] Reference numerals:

[0035] Vehicle 1000, suspension system 100, motor 10, shell 1, inner wall surface 11, outer wall surface 12, accommodating cavity 13, magnetic steel limiting surface 131, first cavity portion 132, second cavity portion 133, first connecting groove 14, first groove first section 141, first groove second section 142, shell body 15, stop wall 16, core shaft hole 161, magnetic steel 2, cover plate 3, second connecting groove 31, first interface 311, second interface 312, second groove first section 313, second groove second section 314, inner side wall 32, outer side wall 33, first end wall 34, second end wall 35, guide rod hole 36, pin 37, primary component 4, connecting wall 6, guide rod 71, core shaft 72, guide channel 721, groove body 81, deposition groove 82, fork arm 9, fork arm body 91, fork arm boss 92. DETAILED DESCRIPTION

[0036] The following describes in detail embodiments of the present application, examples of which 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.

[0037] 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 the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] The following combination Figures 1-9 A motor 10 , a suspension system 100 including the motor 10 , and a vehicle 1000 including the suspension system 100 according to embodiments of the present application will be described in detail.

[0039] According to the embodiment of the present application, the motor 10 includes a secondary component and a primary component 4. The secondary component includes a shell 1. The shell 1 has an inner wall surface 11 and an outer wall surface 12. The inner wall surface 11 forms an accommodating cavity 13. The primary component 4 is located in the accommodating cavity 13. The primary component 4 divides the accommodating cavity 13 into a first cavity portion 132 and a second cavity portion 133. The shell 1 is provided with a first connecting groove 14. The first connecting groove 14 connects the first cavity portion 132 and the second cavity portion 133. The first connecting groove 14 is provided between the inner wall surface 110 and the outer wall surface 12. Specifically, the outer wall surface 12 is arranged on the side of the inner wall surface 11 away from the accommodating chamber 13, and a first connecting groove 14 is provided between the outer wall surface 12 and the inner wall surface 11, so that the first cavity portion 132 and the second cavity portion 133 are connected. When the motor 10 is working and a pressure difference is generated between the first cavity portion 132 and the second cavity portion 133, the gas can flow between the first cavity portion 132 and the second cavity portion 133 through the first connecting groove 14, thereby balancing the pressure difference in the accommodating chamber 13 more quickly.

[0040] Optionally, the housing 1 may be at least partially constructed as a cylindrical structure.

[0041] Optionally, one end of the first communicating groove 14 is connected to the first cavity portion 132 , and the other end of the first communicating groove 14 is directly or indirectly connected to the second cavity portion 133 .

[0042] Specifically, the secondary assembly can also be called a mover assembly, and the primary assembly 4 can also be called a stator assembly.

[0043] In the related technology, the motor includes a shell, a primary component and a secondary component. The shell is separated into a first cavity part and a second cavity part by the primary component. During the operation of the motor, there is a pressure difference between the first cavity part and the second cavity part, which causes the reciprocating motion of the secondary component to be affected by the pressure difference and generate thrust fluctuations, thereby increasing energy loss.

[0044] According to the motor 10 of the embodiment of the present application, the first connecting groove 14 is provided to connect the gases in the first cavity portion 132 and the second cavity portion 133. When the motor 10 starts working and a pressure difference is generated between the first cavity portion 132 and the second cavity portion 133, the gas can flow between the first cavity portion 132 and the second cavity portion 133 through the first connecting groove 14, thereby balancing the pressure difference in the accommodating cavity 13 more quickly.

[0045] In some embodiments of the present application, see Figure 1 、 Figure 2 、 Figure 3 As shown, the shell 1 includes a shell body 15 and a stop wall 16, the stop wall 16 is connected to the shell body 15, the shell body 15 is constructed as a cylindrical structure, the stop wall 16 extends along the radial direction of the shell 1 toward the axis of the shell 1, and a core shaft hole 161 is opened on the stop wall 16, the core shaft hole 161 is for the core shaft 72 to pass through, the first connecting groove 14 includes a first groove first section 141 and a first groove second section 142, the first groove first section 141 is arranged in the shell body 15 and the first groove first section 141 extends along the axial direction of the shell 1, the first groove second section 142 is arranged in the stop wall 16 and the first groove second section 142 extends along the radial direction of the shell 1 to the core shaft hole 161, and the extension length of the first groove second section 142 is less than the extension length of the first groove first section 141.

[0046] Specifically, the stop wall 16 extends radially toward the axis of the shell 1 and is provided with a core shaft hole 161. The core shaft hole 161 can be used to position the core shaft 72 to ensure the stability of the core shaft 72 during installation and use. The first connecting groove 14 is constructed as an "L"-shaped groove, and the extension length of the second section 142 of the first groove is smaller than the extension length of the first section 141 of the first groove. In this way, the metal wear materials deposited in the second section 142 of the first groove are easier to clean than the metal wear materials deposited in the first section 141 of the first groove.

[0047] In some embodiments of the present application, see Figure 1 、 Figure 2 As shown, the secondary assembly further includes a magnet 2, which is disposed within the accommodating cavity 13 and secured to the inner wall surface 11. Specifically, the magnet 2 is separated from the first connecting groove 14. The radially inner side of the portion of the first connecting groove 14 directly facing the magnet 2 is closed. The dimensions of the first connecting groove 14 do not interfere with the installation and fixation of the magnet 2. Materials used to install and fix the magnet 2 do not enter the first connecting groove 14. Gas flow within the first connecting groove 14 is relatively smooth and unobstructed. Consequently, a pressure differential is unlikely to occur between the first cavity portion 132 and the second cavity portion 133 to which the first connecting groove 14 connects.

[0048] Optionally, the magnetic steel 2 may be glued to the inner wall surface 11 or fixed to the inner wall surface 11 by welding, riveting, or the like.

[0049] It can be understood that the above-mentioned “portion of the first communicating groove 14 facing the magnetic steel 2 ” refers to a section where the first communicating groove 14 overlaps with the magnetic steel 2 in the axial direction of the motor 10 .

[0050] In some embodiments of the present application, see Figure 1-Figure 3As shown, the motor 10 further includes a cover plate 3 mounted on the housing 1. A second connecting groove 31 is defined within the cover plate 3, connecting the first connecting groove 14 with the second cavity 133. Specifically, the first connecting groove 14 is connected to the second connecting groove 31, and the second connecting groove 31 is connected to the second cavity 133. The first connecting groove 14 is connected to the second cavity 133 via the second connecting groove 31. Gas exchange between the two ends of the accommodating cavity 13 is achieved through the first connecting groove 14 and the second connecting groove 31, thereby more quickly balancing the pressure difference within the accommodating cavity 13.

[0051] In some embodiments of the present application, the magnetic steel 2 is fixed to the cover plate 3. For example, the magnetic steel 2 can be glued to the cover plate 3, or fixed to the cover plate 3 by welding, riveting, etc.

[0052] Optionally, the gas mentioned in this application may be air or other gases.

[0053] In some embodiments of this application, see Figure 1 As shown, the first cavity portion 132 is located at one axial end of the primary assembly 4, and the second cavity portion 133 is located at the other axial end of the primary assembly 4. The first connecting groove 14 is connected to the first cavity portion 132, and the second connecting groove 31 is connected to the second cavity portion 133. Specifically, the primary assembly 4 is axially along Figure 1 As shown, the first cavity portion 132 extends in the vertical direction, located above the primary assembly 4, and the second cavity portion 133 is located below the primary assembly 4. When the primary assembly 4 and the magnet 2 move relative to each other, a pressure difference occurs between the first cavity portion 132 and the second cavity portion 133. As a result, gas exchange between the first cavity portion 132 and the second cavity portion 133 is achieved through the first connecting groove 14 and the second connecting groove 31, facilitating gas flow between the first cavity portion 132 and the second cavity portion 133. This increases the gas flow rate during high-speed relative motion between the magnet 2 and the primary assembly 4, thereby more quickly balancing the pressure difference between the first cavity portion 132 and the second cavity portion 133.

[0054] In some embodiments of this application, see Figure 1-Figure 3As shown, the housing 1 includes a housing body 15 and a stop wall 16. The stop wall 16 is connected to the housing body 15. The housing body 15 is constructed as a cylindrical structure. The stop wall 16 extends radially toward the axis of the housing 1. The secondary assembly also includes a magnet 2, which is fixed to the housing body 15 and positioned between the stop wall 16 and the cover plate 3. One end of the magnet 2 abuts against the stop wall 16, and the other end of the magnet 2 abuts against the cover plate 3. Thus, the stop wall 16 is used to limit the upper end of the magnet 2, and the cover plate 3 is used to limit the lower end of the magnet 2. The cover plate 3 and the stop wall 16 jointly limit and fix the magnet 2, which is fixed to the inner wall surface 11 of the accommodating cavity 13. The stop wall 16 can effectively prevent the magnet 2 from moving in the axial direction, better limit the axial displacement of the magnet 2, prevent malfunctions caused by the movement of the magnet 2, and help protect the stable operation of the motor 10.

[0055] Specifically, the lower surface of the stop wall 16 forms a magnetic steel limiting surface 131. The magnetic steel 2 is positioned between the magnetic steel limiting surface 131 and the cover plate 3. One end of the magnetic steel 2 abuts against the magnetic steel limiting surface 131, while the other end of the magnetic steel 2 abuts against the cover plate 3. Thus, the magnetic steel limiting surface 131 serves to limit the upper end of the magnetic steel 2, while the cover plate 3 serves to limit the lower end of the magnetic steel 2. Together, the cover plate 3 and the magnetic steel limiting surface 131 serve to limit and secure the magnetic steel 2. The magnetic steel limiting surface 131 effectively prevents axial movement of the magnetic steel 2, effectively limiting its axial displacement, preventing malfunctions caused by movement of the magnetic steel 2, and helping to maintain the stable operation of the motor 10.

[0056] In the related art, elastic members are provided between the cover plate and the magnet to squeeze and limit the magnet. However, when the elastic members are deformed by force, the position of the magnet fluctuates, which prevents them from effectively limiting the position. In the motor 10 of the present embodiment, the cover plate 3 directly engages the magnet 2, eliminating the need for elastic members. This allows the cover plate 3 to press against the magnet 2, effectively limiting the axial displacement of the magnet 2.

[0057] In some embodiments of the present application, see Figure 1-Figure 2 、 Figure 6 、 Figure 7 As shown, the cover plate 3 is constructed as an annular structure, and has an inner wall 32, an outer wall 33, a first end wall 34, and a second end wall 35. The second connecting groove 31 has a first interface 311 and a second interface 312. The first interface 311 is located on the first end wall 34, and the second interface 312 is located on the inner wall 32. The first end wall 34 connects the inner wall 32 and the outer wall 33 at one end close to the magnetic steel 2, and the second end wall 35 connects the inner wall 32 and the outer wall 33 at one end away from the magnetic steel 2. Figure 1-Figure 2In the figure, first end wall 34 connects the upper ends of inner wall 32 and outer wall 33, and second end wall 35 connects the lower ends of inner wall 32 and outer wall 33. Specifically, the annular design of cover plate 3 provides excellent rigidity and stability, capable of withstanding pressure and torque in all directions, effectively protecting internal components such as magnet 2, and also effectively protecting internal components from external environmental influences. The combination of inner wall 32, outer wall 33, first end wall 34, and second end wall 35 provides all-round structural support for cover plate 3, further enhancing the robustness of the overall structure.

[0058] In addition, the second interface 312 is arranged on the inner side wall 32, so that the opening direction of the second interface 312 deviates from the axial direction of the cover plate 3. Figure 4 In the embodiment, the opening direction of the second interface 312 is perpendicular to the axis of the cover plate 3. Thus, the suction of the wear and tear materials on the bottom of the shell 1 during the process of gas passing through the second connecting groove 31 can be reduced.

[0059] In some embodiments of this application, see Figure 1 、 Figure 6 、 Figure 7 As shown, one of the cover plate 3 and the housing 1 has a latch 37, and the other has a socket, with the latch 37 plugging into the socket. Thus, the plugging and mating of the latch 37 and the socket aligns the second connecting groove 31 with the first connecting groove 14, ensuring high gas flow efficiency in the first connecting groove 14 and the second connecting groove 31, thereby more quickly balancing the pressure difference between the first cavity portion 132 and the second cavity portion 133. It also effectively prevents the cover plate 3 and the housing 1 from loosening or falling off, thereby improving the stability of the fixed connection between the cover plate 3 and the housing 1.

[0060] In some embodiments, as Figure 5 As shown, the cover 3 has a latch 37 and the housing 1 has a socket.

[0061] In some embodiments not shown in the drawings, the cover plate 3 has an insertion hole and the housing 1 has a latch 37 .

[0062] Optionally, the cover plate 3 and the housing 1 can be plugged in with the pin 37 and the socket, and the cover plate 3 and the magnet 2 are connected by gluing. Specifically, the first connecting groove 14 and the second connecting groove 31 are aligned by plugging in the pin 37 and the socket, and the relative position of the cover plate 3 and the magnet 2 is made firm and reliable by gluing and limiting. In this way, the cover plate 3 can better limit the axial movement of the magnet 2 that may occur when the motor 10 is displaced at high speed.

[0063] In some embodiments of this application, see Figure 1 、 Figure 2 、 Figure 5As shown, there are multiple first connecting grooves 14, and the multiple first connecting grooves 14 are arranged at intervals along the circumference of the shell 1. Adjacent first connecting grooves 14 are separated by a connecting wall 6, and the second connecting grooves 31 correspond to and are connected to the first connecting grooves 14 one by one. Therefore, the provision of multiple first connecting grooves 14 and second connecting grooves 31 allows the gas to be dispersed and transported through different first connecting grooves 14 and second connecting grooves 31, effectively avoiding the problem of blockage or uneven flow in a single channel, expanding the gas flow area, and improving the gas exchange efficiency. The circumferential spacing of the multiple first connecting grooves 14 and the separation of the connecting wall 6 can ensure that the gas is more evenly distributed when exchanging between the first cavity portion 132 and the second cavity portion 133, which is conducive to balancing the pressure difference between the first cavity portion 132 and the second cavity portion 133. The separation of different first connecting grooves 14 by the connecting wall 6 can ensure the overall rigidity of the shell 1, so that during the assembly process of the magnet 2, there is no need to consider the situation where the materials used such as glue or welding block the first connecting groove 14 and thus affect the gas circulation. At the same time, it can effectively reduce the axial vibration excitation caused by the gas compression in the first cavity portion 132 and the second cavity portion 133 when the magnet 2 and the primary component 4 in the motor 10 undergo high-speed relative motion, thereby alleviating the overall vibration response.

[0064] In some embodiments of the present application, the connecting wall 6 is part of the housing 1. In some embodiments, the connecting wall 6 is disposed on the side of the inner wall 11 facing away from the magnetic steel 2, that is, the connecting wall 6 is located between the inner wall 11 and the outer wall 12. In some embodiments, the connecting wall 6 may extend onto at least one of the inner wall 11 and the outer wall 12.

[0065] In some embodiments of this application, see Figure 1 、 Figure 4 、 Figure 6 As shown, the cover plate 3 is provided with a guide rod hole 36 for the guide rod 71 to pass through. The second connecting groove 31 includes a first section 313 and a second section 314. The first section 313 extends axially along the housing 1 and communicates with the first connecting groove 14. The second section 314 extends radially along the housing 1 to the guide rod hole 36. In other words, the second connecting groove 31 is constructed as an "L"-shaped groove. This increases the gas exchange area between the second connecting groove 31 and the second cavity portion 133, improving the gas exchange efficiency between the first cavity portion 132 and the second cavity portion 133, and further balancing the pressure difference between the first cavity portion 132 and the second cavity portion 133.

[0066] It should be noted that “the second section 314 of the second groove extends radially along the shell 1” means that the extension direction of the second section 314 of the second groove can be strictly perpendicular to the axis of the shell 1, and the extension direction of the second section 314 of the second groove can also have an angle close to 90° with the axis of the shell 1. For example, the angle between the extension direction of the second section 314 of the second groove and the axis of the shell 1 is 80°~100°.

[0067] In some embodiments, as Figure 4 As shown, the second section 314 of the second groove is a curved strip-shaped channel, which can deposit the metal wear and cuttings sucked into the second section 314 of the second groove through the flow field influence in the second end 314 of the second groove, thereby alleviating the situation in which the wear and cuttings accumulate and block the first section 313 of the second groove in the case of abnormal friction of the motor 10.

[0068] In some embodiments of the present application, see Figure 4 As shown, at least one of the first connecting groove 14 and the second connecting groove 31 includes a groove body 81 and a settling groove 82. The settling groove 82 is connected to the groove body 81, and the distance between the settling groove 82 and the accommodating cavity 13 is less than the distance between the groove body 81 and the accommodating cavity 13. As a result, the settling groove 82 has a thinner wall thickness and is more affected by the magnetic field. The settling groove 82 can absorb metal wear and tear materials sucked into the first connecting groove 14 or the second connecting groove 31 through the magnetic field of the magnetic steel 2, thereby alleviating the accumulation and blockage of wear and tear materials in the groove body 81 of the first connecting groove 14 or the groove body 81 of the second connecting groove 31 in the event of abnormal friction in the DC motor 10.

[0069] In some embodiments not shown in the drawings, the first connecting groove 14 includes a groove body 81 and a sedimentation groove 82 .

[0070] In some embodiments not shown in the drawings, the second connecting groove 31 includes a groove body 81 and a sedimentation groove 82 .

[0071] In some embodiments, as Figure 4 As shown, the first connecting groove 14 includes a groove body 81 and a sediment groove 82 , and the second connecting groove 31 includes a groove body 81 and a sediment groove 82 .

[0072] During gas circulation, small metal wear shavings may pass through the curved flow path in the second connecting groove 31 on the cover plate 3 and first impact the sedimentation groove 82 of the second connecting groove 31. Since the wall thickness at this location is relatively thin and is significantly affected by the magnetic field, the metal wear shavings are attracted to the sedimentation groove 82 of the second connecting groove 31 by the magnetic field, preventing them from accumulating elsewhere in the first connecting groove 14 and the second connecting groove 31 and thereby blocking the first connecting groove 14 and the second connecting groove 31 and affecting gas circulation efficiency. Similarly, the sedimentation groove 82 of the first connecting groove 14 plays the same role, attracting the metal wear shavings passing through the sedimentation groove 82 of the first connecting groove 14 through the influence of the magnetic field, thereby preventing them from blocking the first connecting groove 14 and affecting gas circulation efficiency.

[0073] In some embodiments of this application, see Figure 1 、 Figure 6 As shown, the second communicating groove 31 has a first interface 311 and a second interface 312. The first interface 311 is connected to the first communicating groove 14. A breathable membrane is provided at the second interface 312, which shields the second interface 312. Thus, the addition of the breathable membrane prevents small scraps from wear inside the accommodating cavity 13 from entering the second communicating groove 31, causing blockage of the second communicating groove 31 and thus affecting circulation efficiency.

[0074] It should be noted that the size of the breathable membrane should be set to completely cover the second interface 312 to ensure the reliability of ventilation. For example, the outer diameter of the breathable membrane is larger than the inner diameter of the second interface 312, or the outer diameter of the breathable membrane is completely in contact with the inner wall of the second interface 312.

[0075] In some embodiments of this application, see Figure 1 As shown, the motor 10 further includes a core shaft 72 and a guide rod 71. One end of the core shaft 72 extends into the housing 1. The primary assembly 4 is sleeved around the outer periphery of the core shaft 72 and fixed relative to the core shaft 72. The core shaft 72 has a guide channel 721, which extends along the axial direction of the core shaft 72. The guide rod 71 passes through the cover plate 3. At least a portion of the guide rod 71 is slidably accommodated in the guide channel 721. The guide rod 71 and the guide channel 721 are guided and cooperated. Therefore, the cooperation between the guide channel 721 and the guide rod 71 can play a guiding and limiting role in the movement of the guide rod 71 and the housing 1, ensuring that the guide rod 71 and the housing 1 move along a set direction and a set trajectory.

[0076] According to some further embodiments of the present application, the suspension system 100 includes the above-mentioned motor 10 .

[0077] According to the suspension system 100 of the embodiment of the present application, its motor 10 is provided with a first connecting groove 14 to connect the gases in the first cavity portion 132 and the second cavity portion 133. When the motor 10 starts working, a pressure difference will be generated between the first cavity portion 132 and the second cavity portion 133. The gas can flow between the first cavity portion 132 and the second cavity portion 133 through the first connecting groove 14, thereby balancing the pressure difference in the accommodating cavity 13 more quickly.

[0078] In some embodiments of the present application, see Figure 1 As shown, the suspension system 100 also includes a fork arm 9, which includes a fork arm body 91 and a fork arm boss 92. The fork arm body 91 is connected to the housing 1, and the fork arm boss 92 is connected to the fork arm body 91. The fork arm boss 92 protrudes toward the cover plate 3 relative to the fork arm body 91, and the fork arm boss 92 abuts the cover plate 3. Thus, the connection between the fork arm body 91 and the housing 1 enhances the structural stability and rigidity of the motor 10, allowing the fork arm 9 and the housing 1 to move and stop synchronously. The abutment between the fork arm boss 92 and the cover plate 3 reduces the risk of loosening or damage to the cover plate 3 and the housing 1. The fork arm boss 92 abuts the cover plate 3, and the cover plate 3 abuts the magnet 2, further limiting the axial movement of the magnet 2 that may occur when the motor 10 undergoes high-speed displacement.

[0079] In some embodiments of the present application, see Figure 1 As shown, the guide rod 71 is fixedly connected to the fork arm body 91. Through the cooperation of the guide channel 721 and the guide rod 71, it can play a guiding and limiting role in the movement of the fork arm 9 and the shell 1, ensuring that the fork arm 9 and the shell 1 move along the set direction and set trajectory.

[0080] A vehicle 1000 according to some further embodiments of the present application includes the aforementioned suspension system 100 .

[0081] According to the vehicle 1000 of the embodiment of the present application, the motor 10 of its suspension system 100 is provided with a first connecting groove 14 to connect the gases in the first cavity portion 132 and the second cavity portion 133. When the motor 10 starts to work, a pressure difference will be generated between the first cavity portion 132 and the second cavity portion 133. The gas can flow between the first cavity portion 132 and the second cavity portion 133 through the first connecting groove 14, thereby balancing the pressure difference in the accommodating cavity 13 more quickly.

[0082] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "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 this 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 this application.

[0083] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0084] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0085] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A motor (10), characterized in that: include: A secondary assembly, the secondary assembly comprising a housing (1), the housing (1) having an inner wall surface (11) and an outer wall surface (12), the inner wall surface (11) enclosing a receiving cavity (13); A primary assembly (4), the primary assembly (4) being located in the accommodating cavity (13), the primary assembly (4) dividing the accommodating cavity (13) into a first cavity portion (132) and a second cavity portion (133); The housing (1) is provided with a first communicating groove (14), the first communicating groove (14) communicating with the first cavity portion (132) and the second cavity portion (133), and the first communicating groove (14) is provided between the inner wall surface (110) and the outer wall surface (12).

2. The electric motor (10) according to claim 1, characterized in that The housing (1) comprises a housing body (15) and a stop wall (16), wherein the stop wall (16) is connected to the housing body (15), the housing body (15) being constructed as a cylindrical structure, the stop wall (16) extending along the radial direction of the housing (1) toward the axis of the housing (1), and a core shaft hole (161) for a core shaft (72) to pass through is formed on the stop wall (16); The first connecting groove (14) comprises a first groove first section (141) and a first groove second section (142), wherein the first groove first section (141) is arranged in the shell body (15) and extends along the axial direction of the shell (1), and the first groove second section (142) is arranged in the stop wall (16) and extends along the radial direction of the shell (1) to the core shaft hole (161), and the extension length of the first groove second section (142) is less than the extension length of the first groove first section (141).

3. The electric motor (10) according to claim 1, characterized in that The secondary component further comprises a magnetic steel (2), the magnetic steel (2) being arranged in the accommodating cavity (13), and the magnetic steel (2) being fixed to the inner wall surface (11).

4. The electric motor (10) according to claim 1, characterized in that The motor (10) further comprises a cover plate (3), the cover plate (3) being mounted on the housing (1), a second communicating groove (31) being provided in the cover plate (3), the second communicating groove (31) being in communication with the first communicating groove (14) and the second cavity portion (133).

5. The electric motor (10) according to claim 4, characterized in that The housing (1) comprises a housing body (15) and a stop wall (16), wherein the stop wall (16) is connected to the housing body (15), the housing body (15) is configured as a cylindrical structure, and the stop wall (16) extends along the radial direction of the housing (1) toward the axis of the housing (1); The secondary component further comprises a magnetic steel (2), the magnetic steel (2) being fixed to the shell body (15), the magnetic steel (2) being located between the stop wall (16) and the cover plate (3), one end of the magnetic steel (2) being abutted against the stop wall (16), and the other end of the magnetic steel (2) being abutted against the cover plate (3).

6. The electric motor (10) according to claim 5, characterized in that The cover plate (3) is constructed as an annular structure and has an inner side wall (32), an outer side wall (33), a first end wall (34) and a second end wall (35); the second connecting groove (31) has a first interface (311) and a second interface (312); the first interface (311) is located on the first end wall (34), and the second interface (312) is located on the inner side wall (32).

7. The electric motor (10) according to any one of claims 4 to 6, characterized in that One of the cover plate (3) and the housing (1) has a latch (37), and the other has a socket, and the latch (37) is plug-fitted with the socket.

8. The electric motor (10) according to any one of claims 4 to 6, characterized in that There are a plurality of first communicating grooves (14), which are arranged at intervals along the circumference of the shell (1), and two adjacent first communicating grooves (14) are separated by a connecting wall (6). The second communicating grooves (31) correspond to and are connected to the first communicating grooves (14) one by one.

9. The electric motor (10) according to any one of claims 4 to 6, characterized in that The cover plate (3) is provided with a guide rod hole (36) for the guide rod (71) to pass through. The second connecting groove (31) comprises a second groove first section (313) and a second groove second section (314). The second groove first section (313) extends along the axial direction of the housing (1) and is connected to the first connecting groove (14). The second groove second section (314) extends along the radial direction of the housing (1) to the guide rod hole (36).

10. The electric machine (10) according to any one of claims 4 to 6, characterized in that At least one of the first connecting groove (14) and the second connecting groove (31) includes a groove body (81) and a sedimentation groove (82), wherein the sedimentation groove (82) is connected to the groove body (81), and the distance between the sedimentation groove (82) and the accommodating cavity (13) is smaller than the distance between the groove body (81) and the accommodating cavity (13).

11. The electric motor (10) according to any one of claims 4 to 6, characterized in that The second communicating groove (31) has a first interface (311) and a second interface (312), the first interface (311) is connected to the first communicating groove (14), and a breathable membrane is provided at the second interface (312), the breathable membrane shielding the second interface (312).

12. The electric motor (10) according to claim 4, characterized in that The motor (10) further comprises: a core shaft (72), one end of the core shaft (72) extending into the housing (1); the primary assembly (4) being sleeved on the outer periphery of the core shaft (72) and fixed relative to the core shaft (72); the core shaft (72) having a guide channel (721) extending along the axial direction of the core shaft (72); and A guide rod (71), wherein the guide rod (71) passes through the cover plate (3), at least a portion of the guide rod (71) is slidably accommodated in the guide channel (721), and the guide rod (71) is in guiding cooperation with the guide channel (721).

13. A suspension system (100), characterized in that: The motor (10) comprises the motor (10) according to any one of claims 4 to 12.

14. The suspension system (100) according to claim 13, characterized in that The suspension system (100) further includes a fork arm (9), wherein the fork arm (9) includes a fork arm body (91) and a fork arm boss (92), wherein the fork arm body (91) is connected to the housing (1), and the fork arm boss (92) is connected to the fork arm body (91), and the fork arm boss (92) protrudes toward the cover plate (3) relative to the fork arm body (91), and the fork arm boss (92) abuts against the cover plate (3).

15. A vehicle (1000), characterized in that Comprising the suspension system (100) according to claim 13 or 14.

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