Low-inertia permanent magnet synchronous servo motor for low-voltage power supply steering wheel

Abstract

The utility model relates to the technical field of servo motors, and discloses a low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel, which comprises a casing, a rotor is arranged in the casing, a rotating shaft is arranged in the rotor, a first air hole is arranged at the upper end of the casing, second air holes are arranged on two sides of the first air hole, and the first air hole is communicated with the second air hole. A first fan is arranged in the first air hole, a surface gear ring is mounted on the peripheral side of the first fan, a support is mounted in the second air hole, a connecting rod is rotationally clamped in the support, a gear ring is mounted at one end of the connecting rod, and a second fan is mounted at the other end of the connecting rod. When a rotor in a motor rotates, a rotating shaft rotates to drive a first fan to rotate, a side face gear ring on the periphery of the first fan rotates as well, when the side face gear ring rotates, the gear ring rotates as well under limiting of a connecting rod and a support, a second fan is driven to rotate under rotation of the gear ring, and the first fan and the second fan can rotate forwards and backwards at the same time. Therefore, the effects of air inlet and air outlet are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo motors, in particular to a low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel. Background Art

[0002] The low-inertia permanent magnet synchronous servo motor for low-voltage powered steering wheels is a high-performance motor designed specifically for low-voltage powered steering wheels. It features low inertia, high efficiency, and high-precision control. Its low-inertia design, permanent magnet synchronous servo control, and low-voltage power supply make this motor have broad application prospects in automated steering wheel systems, precision machining equipment, and other special environments. With the continuous advancement of technology and the continuous expansion of the market, this motor will play an important role in more fields and promote the development of industrial automation and intelligent manufacturing.

[0003] During normal operation, a servo motor generates heat due to current flowing through the stator and rotor windings, as well as heat from friction in the rotor bearings. Furthermore, changes in the magnetic field cause losses within the iron core, raising its temperature and generating significant heat. Failure to dissipate this excess heat in a timely manner can affect the servo motor's operation and performance. Therefore, those skilled in the art have provided a low-inertia permanent magnet synchronous servo motor for a low-voltage steering wheel to address the issues raised in the background art. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a low-inertia permanent magnet synchronous servo motor for a low-voltage powered steering wheel to solve the problem that a large amount of heat is generated when the servo motor is running. If the excessive heat is not discharged in time, it will affect the normal use of the servo motor and also affect the performance of the servo motor itself.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-inertia permanent magnet synchronous servo motor for a low-voltage powered steering wheel, comprising a casing, a rotor arranged in the casing, a rotating shaft arranged in the rotor, a first air hole being provided at the upper end of the casing, a second air hole being provided on both sides of the first air hole, a first fan being provided in the first air hole, a face gear ring being installed on the circumference of the first fan, a bracket being installed in the second air hole, a connecting rod being rotatably clamped in the bracket, a gear ring being installed at one end of the connecting rod, a second fan being installed at the other end of the connecting rod, and a fixing sleeve being installed in the casing.

[0008] Preferably, the rotating shaft is rotatably engaged with the fixing sleeve, thereby positioning the rotating shaft and preventing the tail end from vibrating due to the length during the rotation of the rotating shaft.

[0009] Preferably, the first fan is fixedly mounted on the rotating shaft. When the rotor in the motor rotates, the rotating shaft rotates, and the rotation of the rotating shaft drives the first fan to rotate.

[0010] Preferably, the face gear ring is in meshing contact with the gear ring. Since the teeth of the gear ring and the face gear ring are in meshing contact, when the face gear ring rotates, the gear ring also rotates under the limitation of the connecting rod and the bracket. Under the rotation of the gear ring, the second fan is driven to rotate.

[0011] Preferably, a filter plate is attached to the first air hole, and a filter cover is threadedly connected to the second air hole, thereby filtering the two air holes to prevent impurities from entering.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the present invention provides a low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel, which has the following beneficial effects:

[0014] Through the design, when the rotor in the motor rotates, the shaft rotates, and the rotation of the shaft drives the first fan to rotate. The side gear ring around the first fan also rotates. Since the teeth of the gear ring and the surface gear ring are in contact and meshing, when the surface gear ring rotates, the gear ring also rotates under the limit of the connecting rod and the bracket. Under the rotation of the gear ring, the second fan is driven to rotate. Regardless of the forward or reverse rotation of the rotor, there will be forward and reverse rotation between the first fan and the second fan at the same time, thereby achieving the effect of air intake and air outlet, and can effectively dissipate heat inside the casing, solving the problem that a large amount of heat will be generated when the servo motor is running, affecting the normal use of the servo motor and affecting the performance of the servo motor itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the three-dimensional structure of a low-inertia permanent magnet synchronous servo motor for a low-voltage powered steering wheel provided in an embodiment of the present application.

[0016] Fig. 2 This is a structural schematic diagram of the first air hole and the second air hole in a low-inertia permanent magnet synchronous servo motor for a low-voltage powered steering wheel provided in an embodiment of the present application.

[0017] Fig. 3 This is a structural cross-sectional view of a casing in a low-inertia permanent magnet synchronous servo motor for a low-voltage powered steering wheel provided in an embodiment of the present application.

[0018] In the figure: 1. Casing; 101. Fixed sleeve; 2. First air hole; 201. Filter plate; 3. Second air hole; 301. Filter cover; 4. Bracket; 5. Rotor; 6. Rotating shaft; 7. First fan; 8. Surface gear ring; 9. Gear ring; 10. Connecting rod; 11. Second fan. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The utility model provides a technical solution, a low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel, please refer to Figs. 1 to 3 , including a casing 1, a rotor 5 is provided in the casing 1, and a rotating shaft 6 is included in the rotor 5. A first air hole 2 is opened at the upper end of the casing 1, and second air holes 3 are opened on both sides of the first air hole 2. A first fan 7 is provided in the first air hole 2, and a surface gear ring 8 is installed on the circumference of the first fan 7. A bracket 4 is installed in the second air hole 3, and a connecting rod 10 is rotatably connected in the bracket 4. A gear ring 9 is installed at one end of the connecting rod 10, and a second fan 11 is installed at the other end of the connecting rod 10. A fixing sleeve 101 is installed in the casing 1.

[0021] See also Fig. 2 、 Fig. 3 The rotating shaft 6 is rotatably engaged with the fixed sleeve 101, thereby positioning the rotating shaft 6 to prevent the tail end of the rotating shaft 6 from vibrating due to the length during rotation. The first fan 7 is fixedly installed on the rotating shaft 6. When the rotor 5 in the motor rotates, the rotating shaft 6 rotates, and the rotation of the rotating shaft 6 drives the first fan 7 to rotate. The face gear ring 8 is in meshing contact with the gear ring 9. Since the teeth of the gear ring 9 are in contact with the teeth of the face gear ring 8, when the face gear ring 8 rotates, the gear ring 9 also rotates under the limit of the connecting rod 10 and the bracket 4. Under the rotation of the gear ring 9, the second fan 11 is driven to rotate.

[0022] See also Fig. 2 The first air hole 2 is fitted with a filter plate 201, and the second air hole 3 is threadedly connected with a filter cover 301, thereby filtering the two air holes to prevent impurities from entering.

[0023] The low-inertia permanent magnet synchronous servo motor for the low-voltage power supply steering wheel in the present invention is composed of a casing 1, a rotor 5, a rotating shaft 6 and other structures. The rotor 5 is arranged in the casing 1, and the rotor 5 includes a rotating shaft 6. A fixing sleeve 101 is installed in the casing 1. The rotating shaft 6 is rotatably engaged with the fixing sleeve 101, and a first air hole 2 is opened at the upper part of the casing 1. Second air holes 3 are opened on both sides of the casing 1. A first fan 7 is arranged in the first air hole 2. The first fan 7 is fixedly installed with the rotating shaft 6. A face gear ring 8 is installed on the circumference of the first fan 7, and a bracket 4 is provided in the second air hole 3. A connecting rod 10 is rotatably engaged in the bracket 4. A gear ring 9 is installed at one end of the connecting rod 10 facing the casing 1, and a second fan 11 is installed at the other end of the connecting rod 10.

[0024] When the rotor 5 in the motor rotates, the shaft 6 rotates, and the rotation of the shaft 6 drives the first fan 7 to rotate. The side gear ring 8 around the first fan 7 also rotates. Since the teeth of the gear ring 9 are in contact and meshing with the surface gear ring 8, when the surface gear ring 8 rotates, the gear ring 9 also rotates under the limit of the connecting rod 10 and the bracket 4. Under the rotation of the gear ring 9, the second fan 11 is driven to rotate. Regardless of the forward and reverse rotation of the rotor 5, there will be forward and reverse rotation between the first fan 7 and the second fan 11, thereby achieving the effect of air intake and air outlet, and can effectively dissipate heat inside the casing 1, solving the problem that a large amount of heat is generated when the servo motor is running, affecting the normal use of the servo motor and affecting the performance of the servo motor itself.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] In this document, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to specific circumstances.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel, comprising a housing (1), characterized in that: The housing (1) is provided with a rotor (5), the rotor (5) includes a rotating shaft (6), the upper end of the housing (1) is provided with a first air hole (2), and second air holes (3) are provided on both sides of the first air hole (2), a first fan (7) is provided in the first air hole (2), a surface gear ring (8) is installed on the circumference of the first fan (7), a bracket (4) is installed in the second air hole (3), a connecting rod (10) is rotatably connected in the bracket (4), one end of the connecting rod (10) is provided with a gear ring (9), and the other end of the connecting rod (10) is provided with a second fan (11), and a fixing sleeve (101) is installed in the housing (1).

2. The low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel according to claim 1, characterized in that: The rotating shaft (6) is rotatably engaged with the fixing sleeve (101).

3. The low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel according to claim 1, characterized in that: The first fan (7) is fixedly mounted on the rotating shaft (6).

4. The low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel according to claim 1, characterized in that: The face gear ring (8) is in meshing contact with the gear ring (9).

5. The low-inertia permanent magnet synchronous servo motor for a low-voltage power supply steering wheel according to claim 1, characterized in that: The first air hole (2) is fitted with a filter plate (201), and the second air hole (3) is threadedly connected with a filter cover (301).

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