Novel servo motor

Abstract

The utility model discloses a novel servo motor which comprises a housing, a stator assembly, a rotor assembly and an encoder assembly, and the other end of the housing is provided with an end cover. The shell is provided with a reinforcing structure and a heat dissipation structure; both the end cover and the encoder assembly are provided with buffer protection assemblies; sealing structures are arranged between the end cover and the shell and between the encoder assembly and the end cover. According to the utility model, the heat dissipation structure is arranged to increase the contact area between the stator assembly in the housing and the outside, and the heat dissipation grooves, the heat dissipation hole groups and the inclined planes are combined to increase the heat dissipation area, so that the heat dissipation efficiency is improved, and the heat dissipation effect is improved; multiple sealing is formed by arranging a sealing structure, so that the waterproof and dustproof performance of the servo motor is improved, and the environmental applicability of the servo motor is improved; the reinforcing structure is arranged to improve the compression resistance of the shell, so that the novel servo motor is lighter and more convenient to carry and install.

Description

Technical Field

[0001] The utility model relates to the technical field of servo drive control, in particular to a novel servo motor. Background Art

[0002] With the demand for high power density of motors, the material usage and structural design of motors are becoming more and more extreme, so the load of motors has also become very high, and loss is one of the factors that has the greatest impact on motor performance. For servo motors, the stator winding and iron core are the locations where the motor has the highest loss. Excessive temperature rise in the motor will cause permanent magnet demagnetization, encoder component damage, etc., seriously affecting the reliability and life of the motor. The existing heat dissipation is to dissipate the heat inside the AC servo motor through a fan, which has poor heat dissipation effect and reduces the service life of the AC servo motor. In response to this problem, application number: 201811278283.0, which discloses an AC servo motor, a servo motor body, a first heat dissipation mechanism, a rotating mechanism and a second heat dissipation mechanism; the inner side surface of the servo motor body is relatively provided with a cooling port corresponding to the oil plate, and the cooling port with a trumpet-shaped structure is opened corresponding to the second fan blade. The servo motor body generates a large amount of heat when rotating, and the internal oil located in the oil plate absorbs the heat from the surface of the servo motor housing. The second fan blows wind from the cooling port to the outside of the servo motor body to dissipate the oil plate. On the one hand, it plays a role in heat dissipation, and on the other hand, it increases the stability of the overall structural connection. When the servo motor is not in use, a sliding dust baffle plate is inside the slide groove to seal the cooling port to prevent dust from entering the interior of the servo motor body. However, the servo motor still has the following problems: 1. The use of fans for heat dissipation is prone to fan overload or failure, resulting in reduced heat dissipation effect, and there is a certain wall thickness between the inside and the outside of the existing servo motor shell, resulting in a small direct contact area between the inside of the servo motor and the outside, affecting the heat dissipation efficiency and effect; 2. The existing servo motor has poor resistance to external force impact and deformation. The existing method uses the method of increasing the wall thickness to improve the resistance to external force impact and deformation. This method causes the servo motor to become heavier and larger as a whole, and its portability is poor, affecting subsequent handling and installation; 3. The sealing performance of the existing servo motor is poor, and sealing rings are mostly used to seal the joints. The sealing rings are easily affected by the environment and age, affecting the waterproof and dustproof performance of the servo motor. The applicability of the servo motor has certain limitations. Utility Model Content

[0003] This utility model aims to solve the technical problems of poor heat dissipation, external force impact resistance and deformation resistance of the servo motor in the prior art by providing a new type of servo motor.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A novel servo motor comprises a housing, a stator assembly, a rotor assembly and an encoder assembly, wherein the stator assembly is arranged in the housing, the rotor assembly is arranged in the stator assembly, the encoder assembly is arranged at one end of the housing, and an end cover is arranged at the other end of the housing; the housing is provided with a reinforcement structure and a heat dissipation structure; the end cover and the encoder assembly are both provided with a buffer protection assembly; and a sealing structure is provided between the end cover and the housing, and between the encoder assembly and the end cover.

[0006] As a further improvement, the reinforcement structure includes multiple layers of honeycomb structure layers, the honeycomb structure layers are respectively arranged on the outer wall of the shell, and the honeycomb structure layers are formed by connecting multiple hexagonal frames.

[0007] As a further improvement, the heat dissipation structure includes a thermally conductive silicone layer and a heat dissipation layer, the thermally conductive silicone layer is arranged between the outer shell and the rotor assembly, and one side of the thermally conductive silicone layer is in contact with the inner wall of the outer shell, and the other side of the thermally conductive silicone layer is in contact with the outer surface of the rotor assembly; the heat dissipation layer is arranged on the outer wall of the honeycomb structure layer.

[0008] As a further improvement, the shell is provided with multiple groups of through hole groups, and the through hole groups are each composed of a plurality of through holes arranged in an array; multiple groups of thermally conductive silicone column groups are provided between the thermally conductive silicone layer and the heat dissipation layer, and the multiple groups of thermally conductive silicone column groups are each composed of a plurality of thermally conductive silicone columns, the thermally conductive silicone columns are respectively arranged in the through holes, and one end of the thermally conductive silicone column is connected to the thermally conductive silicone layer, and the other end of the thermally conductive silicone column is connected to the heat dissipation layer, and the thermally conductive silicone column guides the heat of the thermally conductive silicone layer to the heat dissipation layer for heat dissipation.

[0009] As a further improvement, the heat dissipation layer is provided with a plurality of heat dissipation grooves, and both sides of the plurality of heat dissipation grooves are inclined; the heat dissipation layer is also provided with a plurality of heat dissipation hole groups, and the heat dissipation hole groups are composed of a plurality of heat dissipation holes.

[0010] As a further improvement, the encoder assembly includes an end cover and an encoder; the buffer protection assembly includes a buffer layer, and the buffer layer is arranged on the outer wall of the end cover and the end cover one; the buffer layer is provided with a buffer protrusion structure, and the buffer protrusion structure is a wavy structure composed of a plurality of arc-shaped protrusions, and the arc-shaped protrusions are provided with a buffer cavity.

[0011] As a further improvement, the sealing structure includes a sealing protrusion and a sealing groove, the sealing protrusion is arranged on the end cover and the end cover 1, and the sealing groove is arranged on the two end surfaces of the outer shell; the sealing protrusion includes a first annular protrusion and a second annular protrusion, and the sealing groove includes a first annular groove and a second annular groove, the first annular protrusion is cooperatively connected with the first annular groove, and the second annular protrusion is cooperatively connected with the second annular groove.

[0012] As a further improvement, the first annular protrusion is provided with an inverted slope 1, an annular protrusion is provided in the first annular groove, the annular protrusion is provided with an inverted slope 2, and the inverted slope 2 is matched and connected with the inverted slope 3.

[0013] As a further improvement, the stator assembly includes a stator and a winding group; the rotor assembly includes a rotor and a rotating shaft, one end of the rotating shaft is provided with an output end, and the output end passes through the end cover; the housing is also provided with a brush, the brush is provided with a wire, and the wire is provided with a plug.

[0014] As a further improvement, the encoder is provided with a wire 1, and the wire 1 is provided with a plug 1.

[0015] Compared with the prior art, the above one or more technical solutions in the new servo motor provided by the embodiment of the utility model have at least one of the following technical effects:

[0016] 1. The utility model increases the contact area between the stator assembly in the housing and the outside world by setting a heat dissipation structure, and combines the heat dissipation groove, the heat dissipation hole group and the inclined surface to increase the heat dissipation area, improve the heat dissipation efficiency, improve the heat dissipation effect, reduce the accumulation of heat in the housing, extend the service life of the new servo motor and ensure the performance of the new servo motor; and because there is no through hole setting, the waterproof and dustproof performance of the servo motor is improved, thereby improving the environmental applicability of the servo motor;

[0017] 2. By setting up a reinforced structure to improve the pressure resistance of the shell and provide explosion-proof function, the rotor assembly and stator assembly in the new servo motor are better protected, and the wall thickness is effectively reduced. While improving heat dissipation, the new servo motor is lighter and easier to carry and install;

[0018] 3. By setting up a sealing structure to achieve multiple sealing connections and prevent the sealing ring from aging and causing the sealing to decrease, the waterproof and dustproof effect of the new servo motor is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the overall structure of the new servo motor of this embodiment;

[0021] Figure 2 This is a schematic front view of the novel servo motor of this embodiment;

[0022] Figure 3 for Figure 2 AA cross-sectional view in FIG.

[0023] Figure 4 for Figure 3 An enlarged schematic diagram of A in FIG.

[0024] Figure 5 It is a schematic diagram of the planar structure of the honeycomb structure layer of this embodiment. DETAILED DESCRIPTION

[0025] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0026] For example, see the attached Figure 1 to Figure 5 A novel servo motor 1 includes a housing 2, a stator assembly 3, a rotor assembly 4 and an encoder assembly 5, wherein the stator assembly 3 is arranged in the housing 2, the rotor assembly 4 is arranged in the stator assembly 3, the encoder assembly 5 is arranged at one end of the housing 2, and an end cover 20 is arranged at the other end of the housing 2; the housing 2 is provided with a reinforcement structure 6 and a heat dissipation structure 7; the end cover 20 and the encoder assembly 5 are both provided with a buffer protection assembly 8; a sealing structure 9 is provided between the end cover 20 and the housing 2, and between the encoder assembly 5 and the end cover 20.

[0027] The reinforcement structure 6 includes a multi-layer honeycomb structure layer 60, and the honeycomb structure layer 60 is respectively arranged on the outer wall of the outer shell 2. The honeycomb structure layer 60 is composed of a plurality of hexagonal frames connected together. The reinforcement structure 6 is used to improve the pressure resistance of the outer shell 2 and provide an explosion-proof function to better protect the rotor assembly 4 and the stator assembly 3 in the new servo motor 1, and effectively reduce the wall thickness, improve heat dissipation, and make the new servo motor 1 lighter.

[0028] The heat dissipation structure 7 includes a thermally conductive silicone layer 70 and a heat dissipation layer 71. The thermally conductive silicone layer 70 is arranged between the outer shell 2 and the rotor assembly 4, and one side of the thermally conductive silicone layer 70 is in contact with the inner wall of the outer shell 2, and the other side of the thermally conductive silicone layer 70 is in contact with the outer surface of the rotor assembly 4; the heat dissipation layer 71 is arranged on the outer wall of the honeycomb structure layer 60. The shell 2 is provided with a plurality of through hole groups, each of which is composed of a plurality of through holes arranged in an array, and each of the through holes penetrates the honeycomb structure layer 60; a plurality of thermally conductive silicone column groups 72 are provided between the thermally conductive silicone layer 70 and the heat dissipation layer 71, each of which is composed of a plurality of thermally conductive silicone columns, each of which is arranged in the through holes, and one end of the thermally conductive silicone column is connected to the thermally conductive silicone layer 70, and the other end of the thermally conductive silicone column is connected to the heat dissipation layer 71, and the thermally conductive silicone column passes through the hexagonal frame, and the thermally conductive silicone column conducts the heat of the thermally conductive silicone layer 70 to the heat dissipation layer 71. The heat is discharged to the heat dissipation layer 71; the heat dissipation layer 71 is provided with a plurality of heat dissipation grooves 710, and both side lines of the plurality of heat dissipation grooves 710 are inverted with inclined surfaces 711, and the heat dissipation grooves 710 and the inclined surfaces 711 are used to increase the heat dissipation area and improve the heat dissipation efficiency; the heat dissipation layer 71 is also provided with a plurality of heat dissipation hole groups 74, and the heat dissipation hole groups 74 are composed of a plurality of heat dissipation holes; the heat dissipation structure 7 is used to increase the contact area between the stator assembly 3 in the housing 2 and the outside world, thereby improving the heat dissipation efficiency, improving the heat dissipation effect, reducing the accumulation of heat in the housing 2, extending the service life of the new servo motor 1 and ensuring the performance of the new servo motor 1.

[0029] The encoder assembly 5 includes an end cover 50 and an encoder 51; the buffer protection assembly 8 includes a buffer layer 80, and the buffer layer 80 is arranged on the outer wall of the end cover 20 and the end cover 50; the buffer layer 80 is provided with a buffer protrusion structure 81, and the buffer protrusion structure 81 is a wavy structure composed of a plurality of arc-shaped protrusions, and the arc-shaped protrusions are provided with a buffer cavity 810, and the buffer cavity 810 is used for buffering protection. The buffer protection group assembly is used for buffering protection to prevent the new servo motor 1 from being damaged due to accidental falling, and provide certain buffering protection for the new servo motor 1.

[0030] The sealing structure 9 includes a sealing protrusion 90 and a sealing groove 91. The sealing protrusion 90 is arranged on the end cover 20 and the end cover 1 50, and the sealing groove 91 is arranged on the two end surfaces of the housing 2; the sealing protrusion 90 includes a first annular protrusion 900 and a second annular protrusion 901, and the sealing groove 91 includes a first annular groove 910 and a second annular groove 911. The first annular protrusion 900 is connected with the first annular groove 910, and the second annular protrusion 901 is connected with the second annular groove 911. The first annular protrusion 900 has an inverted bevel 1, and an annular protrusion 9100 is arranged in the first annular groove 910. The annular protrusion 9100 is provided with an inverted bevel 2, and the inverted bevel 2 is connected with the inverted bevel 3. The sealing structure 9 is used to realize multiple sealing connections and prevent the sealing ring from aging and causing the sealing performance to decrease, thereby ensuring the waterproof and dustproof effect of the new servo motor 1.

[0031] The stator assembly 3 includes a stator and a winding group; the rotor assembly 4 includes a rotor and a rotating shaft, one end of the rotating shaft is provided with an output end 30, and the output end 30 is passed through the end cover 20; the housing 2 is also provided with a brush, the brush is provided with a wire, the wire is provided with a plug, and the wire is used for electrical connection. The encoder 51 is provided with a wire 1, the wire 1 is provided with a plug, and the wire 1 is used for electrical connection; the end cover 20 and the housing 2, and the end cover 1 50 and the housing 2 are fixedly connected by a threaded connection structure.

[0032] The utility model increases the contact area between the stator assembly in the housing and the outside world by setting a heat dissipation structure, and increases the heat dissipation area by setting a heat dissipation groove, a heat dissipation hole group and an inclined surface, thereby improving the heat dissipation efficiency, improving the heat dissipation effect, reducing the accumulation of heat in the housing, extending the service life of the new servo motor and ensuring the performance of the new servo motor; and because there is no through hole setting, the waterproof and dustproof performance of the servo motor is improved, thereby improving the environmental applicability of the servo motor; by setting a reinforcement structure to improve the pressure resistance of the housing and provide an explosion-proof function, the rotor assembly and stator assembly in the new servo motor are better protected, and the wall thickness is effectively reduced, while improving heat dissipation, the new servo motor is made lighter and easier to carry and install. By setting a sealing structure to achieve multiple sealing connections, and to prevent the sealing ring from aging and causing the sealing to decrease, the waterproof and dustproof effect of the new servo motor is guaranteed.

[0033] The present invention is not limited to the above-mentioned embodiments. Other new servo motors obtained by using the same or similar structures or devices as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A new type of servo motor, characterized in that: The novel servo motor comprises a housing, a stator assembly, a rotor assembly and an encoder assembly, wherein the stator assembly is arranged in the housing, the rotor assembly is arranged in the stator assembly, the encoder assembly is arranged at one end of the housing, and an end cover is arranged at the other end of the housing; the housing is provided with a reinforcement structure and a heat dissipation structure; the end cover and the encoder assembly are both provided with a buffer protection assembly; and a sealing structure is provided between the end cover and the housing, and between the encoder assembly and the end cover.

2. The novel servo motor according to claim 1 is characterized in that: The reinforcement structure includes multiple layers of honeycomb structure layers, which are respectively arranged on the outer wall of the shell, and the honeycomb structure layers are formed by connecting multiple hexagonal frames.

3. The novel servo motor according to claim 2 is characterized in that: The heat dissipation structure includes a thermally conductive silicone layer and a heat dissipation layer. The thermally conductive silicone layer is arranged between the outer shell and the rotor assembly, and one side of the thermally conductive silicone layer is in contact with the inner wall of the outer shell, and the other side of the thermally conductive silicone layer is in contact with the outer surface of the rotor assembly; the heat dissipation layer is arranged on the outer wall of the honeycomb structure layer.

4. The novel servo motor according to claim 3 is characterized in that: The shell is provided with multiple groups of through hole groups, each of which is composed of a plurality of through holes arranged in an array; multiple groups of thermally conductive silicone column groups are provided between the thermally conductive silicone layer and the heat dissipation layer, each of which is composed of a plurality of thermally conductive silicone columns, the thermally conductive silicone columns are respectively arranged in the through holes, and one end of the thermally conductive silicone column is connected to the thermally conductive silicone layer, and the other end of the thermally conductive silicone column is connected to the heat dissipation layer, and the thermally conductive silicone column guides the heat of the thermally conductive silicone layer to the heat dissipation layer for heat discharge.

5. The novel servo motor according to claim 4 is characterized in that: The heat dissipation layer is provided with a plurality of heat dissipation grooves, and both sides of the plurality of heat dissipation grooves are inclined; the heat dissipation layer is also provided with a plurality of heat dissipation hole groups, and the heat dissipation hole groups are composed of a plurality of heat dissipation holes.

6. The novel servo motor according to claim 5 is characterized in that: The encoder assembly includes an end cover and an encoder; the buffer protection assembly includes a buffer layer, and the buffer layer is arranged on the outer wall of the end cover and the end cover; the buffer layer is provided with a buffer protrusion structure, and the buffer protrusion structure is a wavy structure composed of a plurality of arc-shaped protrusions, and the arc-shaped protrusions are provided with a buffer cavity.

7. The novel servo motor according to claim 6 is characterized in that: The sealing structures include a sealing protrusion and a sealing groove, wherein the sealing protrusion is arranged on the end cover and the end cover 1, and the sealing groove is arranged on the two end surfaces of the shell; the sealing protrusion includes a first annular protrusion and a second annular protrusion, and the sealing groove includes a first annular groove and a second annular groove, the first annular protrusion is matched and connected with the first annular groove, and the second annular protrusion is matched and connected with the second annular groove.

8. The novel servo motor according to claim 7 is characterized in that: The first annular protrusion has an inverted inclined surface 1, an annular protrusion is arranged in the first annular groove, the annular protrusion has an inclined surface 2, and the inclined surface 2 is matched and connected with the inclined surface 3.

9. The novel servo motor according to claim 8 is characterized in that: The stator assembly includes a stator and a winding group; the rotor assembly includes a rotor and a rotating shaft, one end of the rotating shaft is provided with an output end, and the output end passes through the end cover; the housing is also provided with a brush, the brush is provided with a wire, and the wire is provided with a plug.

10. The novel servo motor according to claim 9 is characterized in that: The encoder is provided with a wire 1, and the wire 1 is provided with a plug 1.

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