Servo motor iron core

Abstract

The utility model discloses a servo motor iron core, which belongs to the technical field of motor iron cores, and comprises a stator iron core, a rotor iron core is arranged in the stator iron core, a shaft hole is arranged in the rotor iron core, a coil mounting groove is arranged on one side of the stator iron core contacted with the rotor iron core, a first through hole is arranged on the surface of one side of the rotor iron core, and a second through hole is arranged on the surface of the other side of the rotor iron core. A first through hole is formed in the stator core, a magnet is arranged on one side of the first through hole, a positioning hole is formed in the side, close to the first through hole, of the magnet, a fixing assembly is arranged on the surface of the stator core, and a heat dissipation assembly is arranged on the surface of one side of the rotor core. According to the servo motor iron core, the heat dissipation effect is improved, the service cycle is prolonged, the stator iron core is fixed by arranging the fixing assembly, when the servo motor iron core is used, the stator iron core does not generate position deviation due to high-speed rotation of the rotor iron core, and the service life of a motor is further prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor iron cores, and in particular relates to a servo motor iron core. Background Art

[0002] The iron core in a servo motor is a crucial component, directly impacting the motor's performance and efficiency. The iron core acts as a conduit for magnetic flux in the servo motor, guiding the magnetic field and helping the motor convert electrical and mechanical energy more efficiently. The quality and design of the iron core have a decisive influence on the motor's overall performance.

[0003] Chinese patent application number 201821366461.0 discloses a servo motor core, including a stator core and a rotor core, characterized in that: the rotor core is located in a rotor through-hole, the rotor through-hole is arranged on the stator core, the stator core includes a stator body and a plurality of coil mounting slots, the plurality of coil mounting slots are arranged in a circular array on the stator body, the plurality of coil mounting slots are evenly connected and communicated with the rotor through-hole, the rotor core includes a core body, a magnet hole, a plurality of magnet through-holes in a circular array are provided on the core body, magnets are installed on the plurality of magnet through-holes, fixing rings are provided on both sides of the core body, an axial hole is provided on the core body, a second through-hole is provided above and below the axial hole, and a plurality of first through-holes are symmetrically provided on both sides of the axial hole, so that the magnet positioning is accurate and reliable, the stress at the connection between the rotor and the rotating shaft is dispersed, and the life of the motor is improved.

[0004] The above-mentioned patent has the following problems when used:

[0005] 1. The servo motor core is not equipped with a heat dissipation component, resulting in poor heat dissipation effect of the servo motor core during use, further shortening the service life or damaging the motor.

[0006] 2. The servo motor core only fixes the rotor core. However, when the motor is running, the stator core vibrates due to the high-speed rotation of the rotor core, causing the stator core position to shift. The vibration of the stator core will reduce the life of the motor and affect the normal service life of the motor. Summary of the Invention

[0007] In order to solve the problems raised in the above background technology, the utility model provides a servo motor core, which has the characteristics of perfect fixing effect, good heat dissipation effect and extended service life.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a servo motor core, comprising a stator core, a rotor core arranged inside the stator core, an axial hole arranged inside the rotor core, a coil mounting groove arranged on the side where the stator core contacts the rotor core, a first through hole arranged on one side of the rotor core, a magnet arranged on one side of the first through hole, a positioning hole arranged on the side of the magnet close to the first through hole, a fixing component arranged on the surface of the stator core, and a heat dissipation component arranged on one side of the rotor core.

[0009] Preferably, the heat dissipation component includes a thermally conductive copper sheet, a heat dissipation groove, thermally conductive silicone grease, a heat dissipation hole, a filter, a thermally conductive copper tube and a heat dissipation fin, wherein a heat dissipation groove is provided on the surface of the stator core, thermally conductive silicone grease is provided inside the heat dissipation groove, a thermally conductive copper sheet is provided on the side of the thermally conductive silicone grease away from the heat dissipation groove, a heat dissipation fin is provided on the surface of the thermally conductive copper sheet, a heat dissipation fin is provided on the surface of the shaft hole, a heat dissipation hole is provided on one side of the thermally conductive copper tube, and a filter is provided on the surface of the heat dissipation hole.

[0010] Preferably, the heat dissipation holes do not contact the surface of the magnet, and the diameter of the filter is larger than the diameter of the heat dissipation holes.

[0011] Preferably, the fixing assembly includes a first connecting hole, a second connecting hole, a fixing block, a groove, a fixing pin, a sealing ring, a fixing shell and a heat dissipation port, wherein a fixing block is provided on the surface of the stator core, a first connecting hole is provided inside the fixing block, a fixing shell is provided on the surface of the fixing block, a second connecting hole is provided at the contact point between the fixing shell and the first connecting hole, a heat dissipation port is provided on one side of the fixing shell, a groove is provided on the surface of the stator core, a fixing pin is provided inside the groove, and a sealing ring is provided on the surface of the fixing pin.

[0012] Preferably, a rubber gasket is provided on one side of the fixing block close to the first connecting hole.

[0013] Preferably, a dust cover is provided on the surface of the heat dissipation port.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model solves the problem of poor heat dissipation of the servo motor core during use by setting a heat dissipation component, realizes the function of simultaneously dissipating heat to the stator core and the rotor core, greatly improves the heat dissipation effect, improves the working efficiency of the motor, and extends the service life.

[0016] 2. The utility model fixes the stator core by setting a fixing component. When the servo motor core is in use, the vibration of the stator core due to the high-speed rotation of the rotor core will not cause the stator core position to shift, thereby extending the service life of the motor and improving the practicality of the motor. By setting a dust cover, it is beneficial to prevent external impurities or pollutants from entering the servo motor core when dissipating heat on one side of the servo motor core, thereby affecting the use of the motor, thereby improving the practicality of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a cross-sectional view of the heat dissipation component of the present invention;

[0019] Figure 3 It is a cross-sectional view of the fixing assembly of the utility model;

[0020] In the figure: 1. Stator core; 2. Rotor core; 3. Shaft hole; 4. Heat dissipation assembly; 41. Thermal copper sheet; 42. Heat dissipation groove; 43. Thermal grease; 44. Heat dissipation hole; 45. Filter; 46. Thermal copper tube; 47. Heat sink; 5. Positioning hole; 6. Magnet; 7. Coil mounting groove; 8. First through hole; 9. Fixing assembly; 91. First connecting hole; 92. Second connecting hole; 93. Fixing block; 94. Groove; 95. Fixing pin; 96. Sealing ring; 97. Fixing shell; 98. Heat dissipation vent. DETAILED DESCRIPTION

[0021] 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. Example 1

[0022] See also Figure 1-3 The utility model provides the following technical solutions: a servo motor core, comprising a stator core 1, a rotor core 2 is arranged inside the stator core 1, an axial hole 3 is arranged inside the rotor core 2, a coil mounting groove 7 is arranged on the side where the stator core 1 contacts the rotor core 2, a first through hole 8 is arranged on one side of the rotor core 2, a magnet 6 is arranged on one side of the first through hole 8, a positioning hole 5 is arranged on the side of the magnet 6 close to the first through hole 8, a fixing component 9 is arranged on the surface of the stator core 1, and a heat dissipation component 4 is arranged on one side of the rotor core 2.

[0023] Specifically, the heat dissipation assembly 4 includes a thermally conductive copper sheet 41, a heat dissipation groove 42, thermally conductive silicone grease 43, heat dissipation holes 44, a filter 45, a thermally conductive copper tube 46 and a heat sink 47, wherein a heat dissipation groove 42 is provided on the surface of the stator core 1, a thermally conductive silicone grease 43 is provided inside the heat dissipation groove 42, a thermally conductive copper sheet 41 is provided on the side of the thermally conductive silicone grease 43 away from the heat dissipation groove 42, a heat sink 47 is provided on the surface of the thermally conductive copper sheet 41, a thermally conductive copper tube 46 is provided on the surface of the shaft hole 3, a heat dissipation hole 44 is provided on one side of the thermally conductive copper tube 46, and a filter 45 is provided on the surface of the heat dissipation hole 44.

[0024] By adopting the above technical solution, when the servo motor core is in use, the heat generated by the rotor core 2 will be dissipated to the side of the heat dissipation hole 44 through the heat-conducting copper tube 46. At the same time, the filter 45 arranged on the surface of the heat dissipation hole 44 can effectively filter out tiny impurities in the air to prevent tiny impurities from affecting the operation of the rotor core 2. The heat generated by the coil inside the coil mounting groove 7 is conducted through the heat dissipation groove 42 arranged on the surface of the stator core 1. The thermal grease 43 arranged inside the heat dissipation groove 42 can effectively avoid the problem of insufficient contact between the heat-conducting copper sheet 41 and the heat dissipation groove 42, further conduct the heat to the surface of the heat-conducting copper sheet 41, and finally effectively dissipate the heat through the heat sink 47. This process solves the problem of poor heat dissipation effect of the servo motor core during use, realizes the function of simultaneously dissipating heat to the stator core 1 and the rotor core 2, greatly improves the heat dissipation effect, improves the working efficiency of the motor, and extends the service life.

[0025] Specifically, the heat dissipation holes 44 do not contact the surface of the magnet 6 , and the diameter of the filter 45 is larger than the diameter of the heat dissipation holes 44 .

[0026] By adopting the above technical solution, the contact between the heat dissipation hole 44 and the magnet 6 is avoided to affect the magnetic flux of the magnet 6, further affecting the efficiency of the motor. When the diameter of the filter 45 is larger than the diameter of the heat dissipation hole 44, the filter 45 can cover the surface of the heat dissipation hole 44, and filter the heat dissipation hole 44 more fully.

[0027] When this embodiment is in use: When the servo motor core is in use, the heat generated by the rotor core 2 will be dissipated to the side of the heat dissipation hole 44 through the heat-conducting copper tube 46. At the same time, the filter 45 provided on the surface of the heat dissipation hole 44 can effectively filter out tiny impurities in the air to prevent tiny impurities from affecting the operation of the rotor core 2. The heat generated by the coil inside the coil mounting groove 7 is conducted through the heat dissipation groove 42 provided on the surface of the stator core 1. The thermal grease 43 provided inside the heat dissipation groove 42 can effectively avoid the problem of insufficient contact between the heat-conducting copper sheet 41 and the heat dissipation groove 42, and further conduct the heat to the surface of the heat-conducting copper sheet 41. Finally, the heat is dissipated through the heat sink 47. Effective heat dissipation. This process solves the problem of poor heat dissipation of the servo motor core during use, and realizes the function of simultaneously dissipating heat for the stator core 1 and the rotor core 2, greatly improving the heat dissipation effect, improving the working efficiency of the motor, and extending the service life. Since the heat dissipation holes 44 do not contact the surface of the magnet 6, the diameter of the filter 45 is larger than the diameter of the heat dissipation holes 44, which effectively avoids the contact between the heat dissipation holes 44 and the magnet 6 to affect the magnetic flux of the magnet 6, further affecting the use efficiency of the motor. When the diameter of the filter 45 is larger than the diameter of the heat dissipation holes 44, the filter 45 can cover the surface of the heat dissipation holes 44, and the heat dissipation holes 44 are more fully filtered. Example 2

[0028] The difference between this embodiment and embodiment 1 is that: specifically, the fixing assembly 9 includes a first connection hole 91, a second connection hole 92, a fixing block 93, a groove 94, a fixing pin 95, a sealing ring 96, a fixing shell 97 and a heat dissipation vent 98, wherein a fixing block 93 is provided on the surface of the stator core 1, a first connection hole 91 is provided inside the fixing block 93, a fixing shell 97 is provided on the surface of the fixing block 93, a second connection hole 92 is provided at the contact point between the fixing shell 97 and the first connection hole 91, a heat dissipation vent 98 is provided on one side of the fixing shell 97, a groove 94 is provided on the surface of the stator core 1, a fixing pin 95 is provided inside the groove 94, and a sealing ring 96 is provided on the surface of the fixing pin 95.

[0029] By adopting the above technical scheme, when the stator core 1 is fixed, the fixing pin 95 fixed on the surface of the fixing shell 97 is inserted into the groove 94, and then the second connecting hole 92 is tightly attached to the first connecting hole 91, so that the fixing shell 97 and the fixing block 93 fixed on the surface of the stator core 1 can be locked and fixed by screws. The sealing ring 96 is arranged to effectively avoid the problem that the rotor core 2 is affected by the external environment during rotation. At the same time, the heat dissipation port 98 is arranged on one side surface of the fixing shell 97 to prevent the problem that the heat dissipation effect of one side of the servo motor core is poor. The process realizes the fixation of the stator core 1. When the servo motor core is used, the vibration of the stator core 1 caused by the high-speed rotation of the rotor core 2 will not cause the position deviation of the stator core 1, thereby prolonging the service life of the motor and improving the practicability of the motor.

[0030] Specifically, the side of the fixing block 93 close to the first connecting hole 91 is provided with a rubber gasket.

[0031] By adopting the above technical scheme, the problem that the fixing block 93 is bumped during installation of the fixing shell 97 and affects the fixing effect is avoided, and the stability of the assembly is improved.

[0032] Specifically, the surface of the heat dissipation port 98 is provided with a dust cover.

[0033] By adopting the above technical scheme, when the one side of the servo motor core is cooled, the external impurities or pollutants are prevented from entering the inside of the servo motor core, thereby affecting the use of the motor, and the practicability of the assembly is improved.

[0034] In use, when the stator core 1 is fixed, the fixing pin 95 fixed on the surface of the fixing shell 97 is inserted into the groove 94, and then the second connecting hole 92 is tightly attached to the first connecting hole 91, so that the fixing shell 97 and the fixing block 93 fixed on the surface of the stator core 1 can be locked and fixed by screws. The sealing ring 96 is arranged to effectively avoid the problem that the rotor core 2 is affected by the external environment during rotation. At the same time, the heat dissipation port 98 is arranged on one side surface of the fixing shell 97 to prevent the problem that the heat dissipation effect of one side of the servo motor core is poor. The process realizes the fixation of the stator core 1. When the servo motor core is used, the vibration of the stator core 1 caused by the high-speed rotation of the rotor core 2 will not cause the position deviation of the stator core 1, thereby prolonging the service life of the motor and improving the practicability of the motor, through the rubber gasket arranged on the side of the fixing block 93 close to the first connecting hole 91, the problem that the fixing block 93 is bumped during installation of the fixing shell 97 and affects the fixing effect is avoided, and the stability of the assembly is improved. The dust cover is arranged on the surface of the heat dissipation port 98, which is conducive to preventing external impurities or pollutants from entering the inside of the servo motor core when the one side of the servo motor core is cooled, thereby affecting the use of the motor, and improving the practicability of the assembly.

[0035] The structure and usage principle of the stator core 1, rotor core 2, magnet 6, coil mounting slot 7 and first through hole 8 in the present invention have been disclosed in a servo motor core disclosed in Chinese patent application No. 201821366461.0.

[0036] The working principle and use process of the present invention: The present invention is adjusted for the servo motor core. When the servo motor core is in use, the heat generated by the rotor core 2 will be dissipated to the side of the heat dissipation hole 44 through the heat-conducting copper tube 46. At the same time, the filter 45 arranged on the surface of the heat dissipation hole 44 can effectively filter out tiny impurities in the air, and prevent tiny impurities from affecting the operation of the rotor core 2. The heat generated by the coil inside the coil mounting groove 7 is conducted through the heat dissipation groove 42 arranged on the surface of the stator core 1. The thermal grease 43 arranged inside the heat dissipation groove 42 can effectively avoid the problem of insufficient contact between the heat-conducting copper sheet 41 and the heat dissipation groove 42, and further conduct the heat to The surface of the heat-conducting copper sheet 41 is finally effectively dissipated through the heat sink 47. This process solves the problem of poor heat dissipation effect of the servo motor core during use, and realizes the function of dissipating heat to the stator core 1 and the rotor core 2 at the same time, which greatly improves the heat dissipation effect, improves the working efficiency of the motor, and extends the service life. Since the heat dissipation hole 44 does not contact the surface of the magnet 6, the diameter of the filter 45 is larger than the diameter of the heat dissipation hole 44, which effectively avoids the contact between the heat dissipation hole 44 and the magnet 6. The magnetic flux of the magnet 6 is affected, which further affects the use efficiency of the motor. When the diameter of the filter 45 is larger than the diameter of the heat dissipation hole 44, the filter 45 can cover the heat dissipation hole. The surface of 44 is used to filter the heat dissipation holes 44 more fully. The utility model is adjusted for the servo motor core. When fixing the stator core 1, the fixing pin 95 fixed on the surface of the fixed shell 97 is inserted into the groove 94, and the second connecting hole 92 is close to the first connecting hole 91. The fixed shell 97 and the fixed block 93 fixed on the surface of the stator core 1 can be locked and fixed by screws. By setting the sealing ring 96, the problem of the rotor core 2 being affected by the external environment during rotation is effectively avoided. At the same time, the heat dissipation port 98 is set on the side surface of the fixed shell 97 to prevent the problem of poor heat dissipation effect on one side of the servo motor core. This process realizes the fixation of the stator core 1. The sub-core 1 is fixed. When the servo motor core is in use, the vibration of the stator core 1 due to the high-speed rotation of the rotor core 2 will not cause the position of the stator core 1 to shift, thereby extending the service life of the motor and improving the practicality of the motor. By arranging a rubber gasket on the side of the fixing block 93 close to the first connecting hole 91, the problem of the fixing block 93 being bumped and affecting the fixing effect when installing the fixed shell 97 is avoided, thereby improving the stability of the component. By arranging a dust cover on the surface of the heat dissipation port 98, it is beneficial to avoid external impurities or pollutants from entering the inside of the servo motor core when dissipating heat on one side of the servo motor core, thereby affecting the use of the motor, thereby improving the practicality of the component.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A servo motor core, comprising a stator core (1), a rotor core (2) disposed inside the stator core (1), an axial hole (3) disposed inside the rotor core (2), a coil mounting groove (7) disposed on the side of the stator core (1) in contact with the rotor core (2), a first through hole (8) disposed on one side of the rotor core (2), a magnet (6) disposed on one side of the first through hole (8), and a positioning hole (5) disposed on the side of the magnet (6) close to the first through hole (8), characterized in that: A fixing component (9) is provided on the surface of the stator core (1), and a heat dissipation component (4) is provided on one side surface of the rotor core (2); The heat dissipation assembly (4) comprises a heat-conducting copper sheet (41), a heat dissipation groove (42), heat-conducting silicone grease (43), heat dissipation holes (44), a filter (45), a heat-conducting copper tube (46) and a heat sink (47), wherein the surface of the stator core (1) is provided with a heat dissipation groove (42), the interior of the heat dissipation groove (42) is provided with a heat-conducting silicone grease (43), a heat-conducting copper sheet (41) is provided on a side of the heat-conducting silicone grease (43) away from the heat dissipation groove (42), a heat sink (47) is provided on the surface of the heat-conducting copper sheet (41), a heat-conducting copper tube (46) is provided on the surface of the shaft hole (3), a heat dissipation hole (44) is provided on one side of the heat-conducting copper tube (46), and a filter (45) is provided on the surface of the heat dissipation hole (44).

2. The servo motor core according to claim 1, characterized in that: The heat dissipation hole (44) does not contact the surface of the magnet (6), and the diameter of the filter (45) is larger than the diameter of the heat dissipation hole (44).

3. The servo motor core according to claim 1, characterized in that: The fixing assembly (9) comprises a first connection hole (91), a second connection hole (92), a fixing block (93), a groove (94), a fixing pin (95), a sealing ring (96), a fixing shell (97) and a heat dissipation port (98), wherein a fixing block (93) is provided on the surface of the stator core (1), a first connection hole (91) is provided inside the fixing block (93), a fixing shell (97) is provided on the surface of the fixing block (93), a second connection hole (92) is provided at a contact point between the fixing shell (97) and the first connection hole (91), a heat dissipation port (98) is provided on one side of the fixing shell (97), a groove (94) is provided on the surface of the stator core (1), a fixing pin (95) is provided inside the groove (94), and a sealing ring (96) is provided on the surface of the fixing pin (95).

4. The servo motor core according to claim 3, characterized in that: A rubber gasket is provided on one side of the fixing block (93) close to the first connection hole (91).

5. The servo motor core according to claim 3, characterized in that: The surface of the heat dissipation port (98) is provided with a dust cover.

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