Vehicle-mounted driving device and vehicle-mounted terminal

Abstract

A vehicle-mounted driving device and a vehicle-mounted terminal, aiming to solve the problems of sound production in existing transmission devices during gear transmission, and tooth skipping, binding, and abnormal sound. The vehicle-mounted driving device comprises a fixing portion, a stator, and a rotating portion; the stator is connected to the fixing portion; the rotating portion comprises a rotating rod and a rotating sleeve; the rotating sleeve is configured to be directly connected to a member to be driven; the rotating rod passes through a through hole formed in the middle of the stator; the rotating sleeve is of a cylindrical structure having one end provided with a rotating convex edge; the rotating sleeve is sleeved on the outer side of the stator; the rotating convex edge is connected to the rotating rod; a magnet is provided on the rotating rod or the rotating sleeve; and the rotating portion is configured to be capable of rotating around the axis of the stator. Thus, transmission devices such as a gear and a belt pulley in the middle are removed, thereby reducing noise generated when said member rotates, and avoiding the problems of tooth skipping, binding, and abnormal sound caused by damage of the transmission devices.

Description

Vehicle-mounted drive device and vehicle-mounted terminal

[0001] Priority claim

[0002] This application claims priority to Chinese patent application CN202311767020.7, filed on December 20, 2023, with the invention name “Vehicle-mounted drive device and vehicle-mounted terminal”. The entire contents of the above Chinese patent application are incorporated into this application by reference. Technical Field

[0003] The present invention relates to the field of automobile technology, and in particular provides a vehicle-mounted driving device and a vehicle-mounted terminal. Background Art

[0004] With the development of artificial intelligence technology, it is increasingly being applied in automobiles, leading to the emergence of a variety of in-vehicle intelligent terminals. Among them, those with motion functions (such as rotation and pitch) and human-computer interaction capabilities provide users with a better experience.

[0005] However, some in-vehicle smart terminals use transmission devices (e.g., pulleys and gear combinations) to drive the components of the in-vehicle smart terminal. Such transmission devices often produce gear noises and may cause problems such as tooth jumping, sticking, and abnormal noises, leading to transmission failure and a poor user experience.

[0006] Accordingly, this field requires a new technical solution to solve the above problems.

[0007] Summary of the Invention

[0008] The present invention aims to solve the above technical problems and address the problems that existing transmission devices often make gear transmission noises and may also cause tooth jumping, sticking and abnormal noises.

[0009] The present invention provides a vehicle-mounted drive device, comprising a fixed portion, a stator and a rotating portion; the stator is connected to the fixed portion, the rotating portion comprises a rotating rod and a rotating sleeve, the rotating sleeve is configured to be directly connected to a driven member, the rotating rod passes through a through hole formed in the middle of the stator, the rotating sleeve is a cylindrical structure with a rotating ridge at one end, the rotating sleeve is sleeved on the outer side of the stator, the rotating ridge is connected to the rotating rod, a magnet is provided on the rotating rod or the rotating sleeve, and the rotating portion is configured to be rotatable around the axis of the stator.

[0010] When the above technical solution is adopted, the rotating part can rotate around the axis of the stator, and the rotating sleeve of the driven part is directly connected. When the coil on the stator is energized, the rotating rod and the rotating sleeve can rotate, causing the driven part to rotate. This reduces the noise generated by the rotating part by eliminating intermediate gears, pulleys, and other transmission devices, and avoids problems such as tooth jumping, jamming, and abnormal noise caused by damage to the transmission device.

[0011] In a specific embodiment of the above vehicle-mounted driving device, the magnet is arranged on the inner side of the rotating sleeve; and / or

[0012] A connecting edge is provided on the inner side of the rotating protrusion, and the inner side of the connecting edge is interference-fitted with the rotating rod; and / or

[0013] The stator comprises a stator body and a stator base, the stator body is used for winding, the rotating sleeve is sleeved on the stator body, the stator body is arranged on the stator base, and the stator base is connected to the fixing portion; and / or

[0014] A rotating bearing is sleeved on the rotating rod, and an outer ring of the rotating bearing is connected to the stator.

[0015] When employing the above technical solution, the magnet is positioned inside the rotating sleeve, resulting in greater low-speed torque output, enabling more accurate and rapid rotation to a specified angle when driving the driven member. The inner side of the connecting edge has an interference fit with the rotating rod, further stabilizing the connection between the rotating rod and the rotating sleeve. The stator body is used for winding, and the stator base can be connected to the fixed portion, securing the stator body and facilitating the rotation of the rotating sleeve. The rotating bearing further stabilizes the rotating rod during rotation, preventing it from shaking.

[0016] In a specific embodiment of the above-mentioned vehicle-mounted drive device, a damping bearing is further included, which is configured to provide a friction force in the opposite direction of rotation of the rotating part; the damping bearing includes an inner ring, an outer ring and balls located between the inner ring and the outer ring, the inner ring is connected to one of the rotating part and the fixed part, and the outer ring is connected to the other of the rotating part and the fixed part.

[0017] When the above technical solution is adopted, under the action of the friction force of the damping bearing, even if the winding on the stator is powered off, it is possible to ensure that the stator and the rotating part maintain a set angle, thereby avoiding the rotation of the driven parts on the rotating part during the driving of the vehicle and reducing power consumption.

[0018] In a specific embodiment of the above-mentioned vehicle-mounted driving device, the fixing portion includes a damping frame, the inner ring is connected to the rotating rod, and the outer ring is connected to the damping frame.

[0019] When the above technical solution is adopted, the provision of the damping frame facilitates the installation of the damping bearing.

[0020] In a specific embodiment of the above-mentioned vehicle-mounted drive device, a limiting groove is formed on one side of the damping frame, and the outer ring of the damping bearing is embedded in the limiting groove.

[0021] In a specific embodiment of the above-mentioned vehicle-mounted drive device, the damping bearing further includes a raceway plate, a corrugated plate, and a retaining frame;

[0022] An annular groove is provided in the outer ring, and the number of the raceway plates is two, and the two raceway plates are provided in the annular groove for supporting the balls;

[0023] The corrugated sheet is arranged in the annular groove and is located between the raceway sheet and the side wall of the annular groove, and the corrugated sheet can squeeze the raceway sheet;

[0024] The retaining frame is arranged between the inner ring and the outer ring.

[0025] When the above technical solution is adopted, the corrugated plate can squeeze the raceway plate, thereby increasing the pressure on the ball. The ball is always in contact with the raceway plate and the inner ring, resulting in greater resistance when relative rotation occurs between the inner ring and the outer ring.

[0026] In a specific embodiment of the above-mentioned vehicle-mounted driving device, one end of the inner ring protrudes from the outer ring, and a through hole for connecting with the rotating rod is provided on the inner ring.

[0027] When the above technical solution is adopted, the inner ring and the rotating rod can be fixed through the through hole.

[0028] The present invention further provides a vehicle-mounted terminal, comprising a body, a connecting member, and the above-mentioned vehicle-mounted driving device, wherein the body is connected to the rotating part via the connecting member.

[0029] When the above technical solution is adopted, the rotating part can rotate around the axis of the stator, and the rotating sleeve of the driven part is directly connected. When the coil on the stator is energized, the rotating rod and the rotating sleeve can rotate, causing the driven part to rotate. This reduces the noise generated by the rotating part by eliminating intermediate gears, pulleys, and other transmission devices, and avoids problems such as tooth jumping, jamming, and abnormal noise caused by damage to the transmission device.

[0030] In a specific embodiment of the above-mentioned vehicle-mounted terminal, the connecting member includes a coupling and a bearing member, the lower end of the coupling is connected to the rotating sleeve, and the coupling is used to connect the bearing member.

[0031] When the above technical solution is adopted, the coupling can be connected to the bearing member, and the bearing member is used to connect to the main body, making it more convenient to replace the main body.

[0032] In a specific embodiment of the above-mentioned vehicle-mounted terminal, a snap-in protrusion is provided on the inner side of the coupling, a snap-in recess is provided on the outer side of the carrier, the carrier is inserted into the coupling, and the snap-in protrusion is snap-fitted into the snap-in recess; and / or

[0033] The lower end of the body is connected to the bearing member.

[0034] When the above technical solution is adopted, a connection method of a snap-fit ​​protrusion and a snap-fit ​​recess is adopted. When the coupling and the bearing member are connected, it is more stable and rotation between the coupling and the bearing member is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0036] FIG1 is an external structural diagram of a vehicle-mounted drive device;

[0037] FIG2 is a cross-sectional view of the vehicle-mounted drive device with the stator removed;

[0038] FIG3 is a structural diagram of the stator in the vehicle-mounted drive device;

[0039] FIG4 is an external structural diagram of a damping bearing in a vehicle-mounted drive device;

[0040] FIG5 is a cross-sectional view of a damping bearing in a vehicle-mounted drive device;

[0041] FIG6 is a structural diagram of a retaining frame in a vehicle-mounted drive device;

[0042] FIG7 is an external structural diagram of the vehicle-mounted terminal;

[0043] FIG8 is a cross-sectional view of the vehicle-mounted terminal with the stator removed.

[0044] List of reference numerals: 11-damping frame; 111-first fixing ear; 21-rotating rod; 22-rotating sleeve; 221-rotating flange; 23-magnet; 3-statator; 31-stator base; 311-second fixing ear; 32-stator body; 4-damping bearing; 41-inner ring; 42-ball; 43-raceway plate; 44-outer ring; 45-retaining frame; 451-limiting groove; 46-corrugated plate; 5-body; 6-connecting part; 61-coupling; 62-bearing part; 7-rotating bearing. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not used to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific applications. For example, although the main body in the specification is described in conjunction with the vehicle-mounted interactive head of the smart terminal, the present application can obviously adopt other devices that can be fixed on the carrier, such as a camera device, a mobile phone, a tablet or a display screen.

[0046] It should be noted that, in the description of this application, unless otherwise clearly specified and limited, the terms "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or other connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, "multiple" in this application means at least two.

[0047] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which: Figure 1 is an external structural diagram of a vehicle-mounted drive device; Figure 2 is a cross-sectional view of the vehicle-mounted drive device without the stator; Figure 3 is a structural diagram of the stator in the vehicle-mounted drive device; Figure 4 is an external structural diagram of the damping bearing in the vehicle-mounted drive device; Figure 5 is a cross-sectional view of the damping bearing in the vehicle-mounted drive device; and Figure 6 is a structural diagram of the retaining frame in the vehicle-mounted drive device.

[0048] As shown in Figures 1-6, in order to solve the problems of gear transmission noise often occurring in existing transmission devices, and the possible occurrence of tooth jumping, jamming and abnormal noise, the present invention provides a vehicle-mounted drive device, including a fixed part, a stator 3 and a rotating part; the stator 3 is connected to the fixed part, and the rotating part includes a rotating rod 21 and a rotating sleeve 22. The rotating sleeve 22 is configured to be directly connected to the driven part, and the rotating rod 21 passes through a through hole formed in the middle of the stator 3. The rotating sleeve 22 is a cylindrical structure with a rotating flange 221 at one end. The rotating sleeve 22 is sleeved on the outside of the stator 3, and the rotating flange 221 is connected to the rotating rod 21. A magnet 23 is provided on the rotating rod 21 or the rotating sleeve 22, and the rotating part is configured to be able to rotate around the axis of the stator 3.

[0049] In this way, the rotating part can rotate around the axis of the stator 3, and the rotating sleeve 22 of the driven part is directly connected. When the coil on the stator 3 is energized, the rotating rod 21 and the rotating sleeve 22 can rotate, causing the driven part to rotate. This reduces the number of intermediate transmission devices such as gears and pulleys, thereby reducing noise during the rotation of the driving part and avoiding problems such as tooth jumping, jamming, and abnormal noise caused by damage to the transmission device.

[0050] As shown in Figures 1-6, a preferred embodiment of a vehicle-mounted drive device includes a fixed portion, a stator 3, a rotating portion, and a damping bearing 4, wherein the rotating portion includes a rotating rod 21 and a rotating sleeve 22. The stator 3 includes a stator body 32 and a stator base 31.

[0051] As shown in Figures 1 and 2 , the fixing portion includes a damping frame 11, with a first fixing lug 111 disposed on its outer side. The first fixing lug 111 is connected to the vehicle. A limiting groove is formed on the underside of the damping frame 11, into which the damping bearing 4 is embedded. This limiting groove provides a secure mounting position for the damping bearing 4, facilitating its installation.

[0052] As shown in Figure 3, the stator body 32 can be wound. The specific structure of the stator body 32 is prior art and will not be described in detail here. A stator base 31 is provided at the lower end of the stator body 32. The stator body 32 and the stator base 31 are integrally formed. A second fixing ear 311 is provided on the stator base 31. The second fixing ear 311 is connected to the first fixing ear 111 on the damping frame 11 by bolts. A through hole is provided at the center of the stator body 32 and the stator base 31. In this way, the stator body 32 is used for winding, and the stator base 31 can be connected to the damping frame 11, so that the stator body 32 can be fixed, which is convenient for driving the rotating sleeve 22 to rotate.

[0053] The rotating rod 21 passes through a through-hole formed in the center of the stator 3. The rotating sleeve 22 is a cylindrical structure with a rotating flange 221 at one end. The rotating sleeve 22 is mounted on the outer side of the stator. A connecting flange is provided inside the rotating flange 221, and the inner side of the connecting flange has an interference fit with the rotating rod 21. A magnet 23 is mounted on the inner side of the rotating sleeve 22. When the windings on the stator body 32 are energized, the position of the magnet 23 changes (the principle driving the magnet 23 is similar to that of a brushless motor and will not be further explained here), allowing the rotating sleeve 22 to rotate about the axis of the stator 3. Two rotating bearings 7 are mounted on the rotating rod 21, and the outer rings 44 of the rotating bearings 7 are connected to the stator 3. This arrangement of the magnet 23 on the inner side of the rotating sleeve 22 increases low-speed torque output, enabling more accurate and rapid rotation to a desired angle when driving the driven component. The inner side of the connecting flange has an interference fit with the rotating rod 21, ensuring a more stable connection between the rotating rod 21 and the rotating sleeve 22. The rotating bearing 7 is rotated to make the rotating rod 21 more stable during rotation, thereby preventing the rotating rod 21 from shaking.

[0054] Referring to Figures 4-6 , the damping bearing 4 is configured to provide friction in a direction opposite to the rotation of the rotating part. Specifically, the damping bearing 4 comprises an inner ring 41, an outer ring 44, and balls 42 positioned between the inner and outer rings. The inner ring 41 is connected to the rotating rod 21, while the outer ring 44 is connected to the damping frame 11. One end of the inner ring 41 protrudes beyond the outer ring 44. The inner ring 41 is provided with a through hole for connecting to the rotating rod 21. A receiving groove is formed on the outer side of the inner ring 41. The receiving groove has an arc-shaped cross-section to accommodate the balls 42.

[0055] The damping bearing 4 also includes raceways 43, corrugated plates 46, and a retainer 45. An annular groove is formed within the outer ring 44. Two raceways 43 are positioned within the annular groove to support the balls 42. The corrugated plates 46 are single-layer corrugated rings and are positioned within the annular groove, between one of the raceways 43 and the sidewall of the annular groove. These plates compress the raceways 43, ensuring that the balls 42 maintain contact with both the raceways 43 and the inner ring 41. The retainer 45 is positioned between the inner ring 41 and the outer ring 44. Multiple retaining grooves 451 are formed along one side of the retainer 45, circumferentially along the retainer 45. The balls 42 are positioned within these grooves. This compressive action of the corrugated plates 46 against the raceways 43 increases the pressure on the balls 42, resulting in greater resistance to relative rotation between the inner ring 41 and the outer ring 44. Under the action of the friction force of the damping bearing 4, even if the winding of the stator 3 is powered off, it can ensure that the stator 3 and the rotating part maintain a set angle, avoiding the rotation of the driven parts on the rotating part during the vehicle driving process and reducing power consumption.

[0056] It should be noted that the above embodiment is the most preferred embodiment of the present invention. Those skilled in the art can adjust some structures and connection positions under different usage environments to achieve the purpose of the present invention. Some possible adjustment methods are described below.

[0057] In one possible embodiment, the setting method of the fixing part is not unique, and those skilled in the art can select the specific structure of the fixing part based on the specific application scenario. For example, the damping frame 11 is not provided, the fixing part includes a fixing plate, the stator 3 is connected to the fixing plate, and the damping bearing 4 is provided between the rotating rod 21 and the stator body 32. For another example, the damping frame 11 is not provided, the fixing part includes a fixing plate, the stator is connected to the fixing plate, and the damping bearing 4 is provided between the rotating rod 21 and the stator base 31. For another example, no limiting groove is provided in the damping frame 11, a cylindrical cavity is formed inside the damping frame 11, the damping bearing 4 is located in the cylindrical cavity, and the outer ring 44 of the damping bearing 4 is interference fit with the damping frame 11. For another example, the damping frame 11 does not have a retaining groove. Instead, a cylindrical cavity is formed within the damping frame 11, and the damping bearing 4 is positioned within the cylindrical cavity. A first fixing hole is provided on the side of the damping frame 11. A bolt is threadedly connected to the first fixing hole. The bolt compresses the outer ring 44 of the damping bearing 4 to secure the damping bearing 4. Furthermore, multiple first fixing holes can be provided to provide a more stable securement of the damping bearing 4. Furthermore, a second fixing hole corresponding to the first fixing hole is provided on the outer ring 44 of the damping bearing 4. After the bolt passes through the first fixing hole, it is inserted into the second fixing hole, thereby compressing the second fixing hole.

[0058] In one possible embodiment, the stator 3 may be arranged in a non-exclusive manner, and those skilled in the art may select a specific structure of the fixing portion based on a specific application scenario. For example, the stator base 31 may not be provided, and the stator body 32 may be directly connected to the damping frame 11.

[0059] In one possible embodiment, the configuration of the rotating portion is not limited to a single configuration. Those skilled in the art may select a specific configuration based on the specific application scenario. For example, the connecting edge may be omitted, and the inner side of the rotating flange 221 may be directly connected to the rotating rod 21. Alternatively, the inner side of the connecting edge may be bonded to the rotating rod 21 rather than using an interference fit. Furthermore, the magnets 23 may not necessarily be disposed on the inner side of the rotating sleeve 22; the magnets 23 may be disposed on the outer side of the rotating rod 21. Furthermore, the rotating rod 21 may be provided with two rotating bearings 7. The outer rings 44 of the rotating bearings 7 may not necessarily be connected to the stator 3. A single rotating bearing 7 may be used, or a rotating bearing 7 may be disposed between the rotating sleeve 22 and the stator body 32, or the rotating bearing 7 may be modified into a shaft sleeve. Alternatively, the rotating bearing 7 may be omitted. When the rotating sleeve 22 is connected to the driven component, a structure on the driven component prevents collision between the rotating rod 21 and the stator body 32.

[0060] In one possible embodiment, the damping bearing 4 is not required. Those skilled in the art can choose whether to provide the damping bearing 4 and the specific structure of the damping bearing 4 based on the specific application scenario. For example, there can be only one raceway plate 43, one raceway plate 43 disposed in the annular groove, with the ball 42 in contact with one sidewall of the annular groove, the raceway plate 43, and the inner ring 41, and the corrugated plate 46 disposed between the raceway plate 43 and the other sidewall of the annular groove. For another example, the corrugated plate 46 can be omitted, and multiple compression springs can be disposed between the raceway plate 43 and one sidewall of the annular groove to compress the raceway plate 43. For another example, two corrugated plates 46 can be provided, one corrugated plate 46 being positioned between one raceway plate 43 and one sidewall of the annular groove, and the other corrugated plate 46 being positioned between the other raceway plate 43 and the other sidewall of the annular groove. The two corrugated plates 46 can compress the two raceway plates 43, respectively. For another example, retainer 45 utilizes two fixed frames. After the two fixed frames are connected together, multiple limiting frames are formed along the length of the fixed frames to accommodate ball bearings 42. Ball bearings 42 are positioned within the limiting frames. For another example, it is not essential that one end of inner ring 41 protrudes beyond outer ring 44; inner ring 41 can have an interference fit with rotating rod 21. Furthermore, it is not essential that inner ring 41 has a through hole for connecting to rotating rod 21. Instead of a through hole, inner ring 41 can be threaded on its inner side to connect to rotating rod 21.

[0061] In one possible embodiment, the damping bearing 4 is not positioned in a single location. Those skilled in the art may select a suitable location for the damping bearing 4 based on the specific application scenario. For example, the damping bearing 4 may be sleeved on the rotating rod 21, with the inner ring 41 of the damping bearing 4 connected to the rotating rod 21, and the outer ring 44 of the damping bearing 4 connected to the stator base 31. In another example, the damping bearing 4 may be sleeved on the rotating sleeve 22, with the inner ring 41 of the damping bearing 4 connected to the rotating sleeve 22, and the outer ring 44 of the damping bearing 4 connected to other fixed components of the vehicle. In another example, the rotating bearing 7 may be replaced with the damping bearing 4, such that the damping bearing 4 is positioned between the rotating rod 21 and the stator body 32.

[0062] The preferred embodiment of the vehicle-mounted terminal of the present invention will be described below with reference to the accompanying drawings, in which: FIG7 is an external structural diagram of the vehicle-mounted terminal; and FIG8 is a cross-sectional view of the vehicle-mounted terminal without a stator.

[0063] Referring to Figures 7 and 8 , the present invention further provides a vehicle-mounted terminal comprising a main body, a connector 6 , and the aforementioned vehicle-mounted drive device, wherein the main body is connected to a rotating portion via the connector 6 . Thus, the rotating portion can rotate about the axis of the stator, and the rotating sleeve 22 of the driven member is directly connected. When the coil on the stator is energized, the rotating rod 21 and the rotating sleeve 22 can rotate, causing the driven member to rotate. Thus, by reducing the number of intermediate transmission devices such as gears and pulleys, the noise generated during the rotation of the driving member is reduced, thereby avoiding problems such as tooth jumping, jamming, and abnormal noise caused by damage to the transmission device.

[0064] A preferred embodiment of a vehicle-mounted terminal includes a body 5, a connector 6, and a vehicle-mounted drive device, wherein the connector 6 includes a coupling 61 and a bearing 62. The coupling 61 is cylindrical, and a connecting flange is provided at the lower end of the coupling 61. The connecting flange is provided with a connecting hole, and the connecting flange is connected to the upper side of the rotating sleeve 22 through the connecting hole.

[0065] The inner side of coupling 61 is provided with a snap-in projection, and the outer side of carrier 62 is provided with a snap-in recess. Carrier 62 is inserted into coupling 61, and the snap-in projection snaps into the snap-in recess. Coupling 61 is provided with a through hole, and a threaded bolt is connected within the through hole. The bolt can be used to fix carrier 62. The lower end of body 5 is inserted into carrier 62, making the connection between body 5 and carrier 62 more convenient. The snap-in projection and snap-in recess connection method makes the coupling 61 and carrier 62 more stable when connected, preventing rotation between the coupling 61 and carrier 62.

[0066] It should be noted that the configuration of the connector 6 is not unique, and those skilled in the art can select the specific configuration of the connector 6 based on the specific application scenario. For example, the connector 6 can be a bolt, through which the body 5 is connected to the rotating sleeve 22. For another example, the connector 6 does not include the bearing member 62, and is directly connected to the lower end of the body 5 through the coupling 61. For another example, instead of using the coupling 61, a connecting flange is provided at the lower end of the bearing member 62, and is connected to the rotating sleeve 22 through the connecting flange. It should also be noted that the body 5 can be an in-vehicle interactive head of a smart terminal, or a camera device, a mobile phone, a tablet, or a display screen, etc.

[0067] A possible method of using a preferred embodiment of a vehicle-mounted terminal in the present invention.

[0068] When the main body 5 needs to be rotated, the coil on the stator body 32 is energized. Under the action of the coil, the position of the magnet 23 is moved, overcoming the friction resistance of the damping bearing 4, causing the rotating sleeve 22 and the rotating rod 21 to rotate. After the rotation reaches the target position, the coil on the stator is de-energized. Under the action of the damping bearing 4, the rotating sleeve 22 will not rotate, thereby maintaining the orientation of the main body 5.

[0069] Those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims of this application, any of the claimed embodiments may be used in any combination.

[0070] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A vehicle-mounted driving device, characterized in that: It includes a fixed part, a stator and a rotating part; The stator is connected to the fixing portion, The rotating part includes a rotating rod and a rotating sleeve, and the rotating sleeve is configured to be directly connected to the driven member, the rotating rod passes through a through hole formed in the middle of the stator, and the rotating sleeve is a cylindrical structure with a rotating flange at one end, and the rotating sleeve is sleeved on the outer side of the stator, and the rotating flange is connected to the rotating rod. A magnet is provided on the rotating rod or the rotating sleeve, and the rotating part is configured to be able to rotate around the axis of the stator.

2. The vehicle-mounted driving device according to claim 1, characterized in that: The magnet is arranged on the inner side of the rotating sleeve; and / or A connecting edge is provided on the inner side of the rotating protrusion, and the inner side of the connecting edge is interference-fitted with the rotating rod; and / or The stator comprises a stator body and a stator base, the stator body is used for winding, the rotating sleeve is sleeved on the stator body, the stator body is arranged on the stator base, and the stator base is connected to the fixing part; and / or A rotating bearing is sleeved on the rotating rod, and the outer ring of the rotating bearing is connected to the stator.

3. The vehicle-mounted driving device according to claim 1 or 2, characterized in that: It also includes a damping bearing, which is configured to provide a friction force in the opposite direction of rotation of the rotating part; the damping bearing includes an inner ring, an outer ring and balls located between the inner ring and the outer ring, the inner ring is connected to one of the rotating part and the fixed part, and the outer ring is connected to the other of the rotating part and the fixed part.

4. The vehicle-mounted driving device according to claim 3, characterized in that: The fixing part comprises a damping frame, the inner ring is connected to the rotating rod, and the outer ring is connected to the damping frame.

5. The vehicle-mounted driving device according to claim 4, characterized in that: A limiting groove is formed on one side of the damping frame, and the outer ring of the damping bearing is embedded in the limiting groove.

6. The vehicle-mounted driving device according to claim 3, characterized in that: The damping bearing also includes a raceway plate, a corrugated plate, and a retaining frame; An annular groove is arranged in the outer ring, and the number of the raceway plates is two, and the two raceway plates are arranged in the annular groove for supporting the balls; The corrugated sheet is arranged in the annular groove and is located between the raceway sheet and the side wall of the annular groove, and the corrugated sheet can squeeze the raceway sheet; The retaining frame is arranged between the inner ring and the outer ring.

7. The vehicle-mounted driving device according to claim 6, characterized in that: One end of the inner ring protrudes from the outer ring, and the inner ring is provided with a through hole for connecting with the rotating rod.

8. A vehicle-mounted terminal, characterized in that: It comprises a main body, a connecting member and the vehicle-mounted driving device according to any one of claims 1 to 7, wherein the main body is connected to the rotating part through the connecting member.

9. The vehicle-mounted terminal according to claim 8, characterized in that: The connecting member comprises a coupling and a bearing member, the lower end of the coupling is connected to the rotating sleeve, and the coupling is used to connect the bearing member.

10. The vehicle-mounted terminal according to claim 9, characterized in that: The inner side of the coupling is provided with a snap-in protrusion, the outer side of the carrier is provided with a snap-in recess, the carrier is inserted into the coupling, and the snap-in protrusion is snap-into the snap-in recess; and / or The lower end of the body is connected to the bearing member.

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