Servo motor casing heat dissipation structure

Abstract

The utility model provides a heat dissipation structure of a servo motor casing, and belongs to the technical field of motors. The problem that an existing machine shell is poor in heat dissipation is solved. According to the utility model, a machine shell comprises a cylindrical shell body, an annular flange is arranged at the front end of the shell body, a circle of raised line is formed on the outer wall of the shell body, and the front end of the raised line extends to the annular flange; the heat dissipation structure is arranged between every two adjacent protruding strips and comprises a plurality of inner heat dissipation pieces formed on the outer wall of the shell and further comprises a heat conduction long plate which is fixedly arranged, the length of the heat conduction long plate extends in the axial direction of the shell, and a certain distance exists between the front end of the heat conduction long plate and the annular flange. The axial section of the heat conduction long plate is approximately U-shaped, a long-strip-shaped heat dissipation channel is formed by the inner wall of the heat conduction long plate, the outer side wall of the shell and the two corresponding adjacent protruding strips, and the inner cooling fins are located in the heat dissipation channel. Long-strip-shaped outer cooling fins are densely distributed on the outer wall of the heat conduction long plate. The heat dissipation structure of the servo motor casing is beneficial to heat dissipation of the casing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor technical field relates to a kind of servo motor, especially a kind of servo motor shell heat dissipation structure. BACKGROUND

[0002] Servo motor is a kind of engine in servo system control mechanical element rotation, it is as auxiliary motor indirect speed changer, can be converted into torque and rotational speed to drive control object with voltage signal, with high precision, high speed and high efficiency characteristics.

[0003] The existing servo motor such as China patent library discloses a kind of servo motor (application number: 202410806315.9), including motor shaft and heat dissipation fan, heat dissipation fan is driven to rotate by motor shaft to produce heat dissipation airflow, it is characterized in that, heat dissipation fan has two groups, heat dissipation fan includes base and fan blade, base is connected with motor shaft and can rotate with motor shaft, fan blade is movably connected with base to be retractable and open, fan blade is provided with elastic return device, when base does not rotate with motor shaft, elastic return device keeps fan blade retracted state, when base rotates with motor shaft, fan blade is rotated by base, it is opened to produce heat dissipation airflow by centrifugal effect, the base of two groups of heat dissipation fans is rotated with motor shaft only when motor shaft is forward and reverse, to produce heat dissipation airflow in the same direction when motor shaft is forward and reverse respectively.

[0004] In the above-mentioned servo motor, the shell mainly relies on its external fin heat exchange to achieve heat dissipation, and the fin is generally a straight strip, which affects the heat exchange area and thus affects the overall heat dissipation of the motor. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above-mentioned problems existing in the prior art, and provides a kind of servo motor shell heat dissipation structure, and the technical problem to be solved is how to enhance motor heat dissipation.

[0006] The utility model can be realized by the following technical scheme: a kind of servo motor shell heat dissipation structure, shell includes the shell of cylinder, ring flange is equipped at shell front end, a circle of convex strip is formed on shell outer wall, and convex strip front end extends to ring flange place;The present heat dissipation structure is arranged between adjacent two convex strips, including a plurality of inner fins formed on shell outer wall, it is characterized in that, still include the heat conduction long plate of fixed setting, the length of heat conduction long plate extends along the axial direction of shell, and there is a certain distance between heat conduction long plate front end and ring flange;The axial section of heat conduction long plate is substantially "︺" shape, heat conduction long plate inner wall, shell outer side wall and corresponding adjacent two convex strips form a long strip-shaped heat dissipation channel, and the above-mentioned inner fin is in heat dissipation channel;Heat conduction long plate outer wall is densely covered with long strip-shaped outer fin, and the length extension direction of outer fin and heat conduction long plate is consistent.

[0007] The inner heat dissipation fins are arranged between the heat conduction long plate and the shell, and the outer heat dissipation fins are densely arranged outside the heat conduction long plate, so that two heat dissipation paths are arranged in the radial direction of the shell, the heat exchange area of the shell is effectively increased, and the heat dissipation efficiency and effect of the motor are greatly improved.

[0008] In the above-mentioned heat dissipation structure of the servo motor shell, the heat conduction long plate is composed of two inclined plates and an intermediate plate between the two inclined plates, and the two inclined plates extend to the corresponding two protrusions, so as to expand the size of the heat conduction long plate to arrange more outer heat dissipation fins and further accelerate heat dissipation.

[0009] In the above-mentioned heat dissipation structure of the servo motor shell, the outer heat dissipation fins are arranged on the inclined plate and the intermediate plate, a plurality of outer heat dissipation fins on the inclined plate are uniformly arranged along the width direction of the inclined plate, and a plurality of outer heat dissipation fins on the intermediate plate are uniformly arranged along the width direction of the intermediate plate. By adopting the above design, the distribution of the outer heat dissipation fins is more uniform, and heat dissipation is further accelerated.

[0010] In the above-mentioned heat dissipation structure of the servo motor shell, the heat dissipation structure further comprises a recess cavity opened on the outer sidewall of the shell, and the recess cavity is between the heat dissipation channel and the annular flange. The recess cavity is arranged to reduce the shielding area of the front end of the heat dissipation channel, so as to facilitate heat dissipation of the heat dissipation channel.

[0011] In the above-mentioned heat dissipation structure of the servo motor shell, the recess cavity comprises two groove side surfaces arranged in the axial direction of the shell, the rear end surface of the annular flange constitutes one of the groove side surfaces, and the other groove side surface is arranged close to the heat dissipation channel, so as to effectively expand the size of the recess cavity and further accelerate heat dissipation.

[0012] In the above-mentioned heat dissipation structure of the servo motor shell, the heat conduction long plate, the protrusion and the shell are in an integrated structure.

[0013] Compared with the prior art, the heat dissipation structure of the servo motor shell has the following advantages:

[0014] 1. The inner heat dissipation fins are arranged between the heat conduction long plate and the shell, and the outer heat dissipation fins are densely arranged outside the heat conduction long plate, so that two heat dissipation paths are arranged in the radial direction of the shell, the heat exchange area of the shell is effectively increased, and the heat dissipation efficiency and effect of the motor are greatly improved.

[0015] 2. The recess cavity is arranged to reduce the shielding area of the front end of the heat dissipation channel, so as to facilitate heat dissipation of the heat dissipation channel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of a servo motor.

[0017] Figure 2 is Figure 1 is an enlarged schematic view of position A in FIG.

[0018] In the diagram, 1 is the shell; 2 is the annular flange; 3 is the raised strip; 4 is the heat-conducting plate; 4a is the inclined plate; 4b is the intermediate plate; 5 is the inner heat sink; 6 is the heat dissipation channel; 7 is the outer heat sink; 8 is the cavity; 8a is the side of the groove; and 9 is the rear end cover. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 As shown, the servo motor housing includes a cylindrical housing 1. The front end of the housing 1 has an annular flange 2, which is coaxially mounted and integral with the housing 1. A raised strip 3 is formed on the outer wall of the housing 1, extending axially along the housing 1, with its front end extending to the annular flange 2. In the actual product, the annular flange 2 has a ring of axially penetrating through holes. Some of these through holes are used for mounting and positioning the servo motor; the other part, with the same number of through holes as the raised strip 3 and aligned with each other, is used to connect the housing to the rear end cover 9.

[0021] The heat dissipation structure of this servo motor housing is set between two adjacent protrusions 3. In actual use, it is acceptable to have one of the above-mentioned heat dissipation structures between each pair of adjacent protrusions 3 or between one pair of protrusions 3.

[0022] Specifically

[0023] like Figure 1 and Figure 2 As shown, this heat dissipation structure includes a fixedly mounted heat-conducting plate 4 and several inner heat dissipation fins 5 formed on the outer wall of the housing 1. The inner heat dissipation fins 5 extend axially along the housing 1, and are evenly distributed circumferentially around the housing 1. The heat-conducting plate 4 extends axially along the housing 1, and there is a certain distance between the front end of the heat-conducting plate 4 and the annular flange 2. The axial cross-section of the heat-conducting plate 4 is approximately “︺”-shaped. The inner wall of the heat-conducting plate 4, the outer wall of the housing 1, and the corresponding two adjacent protrusions 3 form a long strip-shaped heat dissipation channel 6. The heat dissipation channel 6 extends axially along the housing 1, and the inner heat dissipation fins 5 are located within the heat dissipation channel 6. Long strip-shaped outer heat dissipation fins 7 are densely distributed on the outer wall of the heat-conducting plate 4, and the length extension direction of the outer heat dissipation fins 7 and the heat-conducting plate 4 is consistent.

[0024] The inner heat sink 5 is set between the heat-conducting plate 4 and the housing 1, and the outer heat sink 7 is densely distributed on the outside of the heat-conducting plate 4, so that two heat dissipation channels are arranged in the radial direction of the housing 1, which effectively increases the heat exchange area of ​​the housing and greatly improves the heat dissipation efficiency and effect of the motor.

[0025] The heat-conducting long plate 4 is composed of two inclined plates 4a and an intermediate plate 4b between the two inclined plates 4a, and the two inclined plates 4a extend to the corresponding two convex strips 3 respectively to expand the size of the heat-conducting long plate 4 to arrange more external heat radiating fins 7 and further accelerate heat dissipation. Preferably, the inclined plates 4a and the intermediate plate 4b are both arranged with the external heat radiating fins 7 described above, and the external heat radiating fins 7 on the inclined plates 4a are arranged at intervals along the width direction of the inclined plates 4a, and the external heat radiating fins 7 on the intermediate plate 4b are arranged at intervals along the width direction of the intermediate plate 4b. With the above design, the external heat radiating fins 7 are more evenly distributed, and heat dissipation is further accelerated.

[0026] In actual products, the heat-conducting long plate 4, the convex strips 3 and the shell 1 are of an integrated structure; the shell is made of aluminum alloy material to have good heat conduction performance.

[0027] As shown in Figs. Figure 1 and Figure 2 The heat dissipation structure further includes a recessed cavity 8 formed on the outer sidewall of the shell 1, and the recessed cavity 8 is between the heat dissipation channel 6 and the annular flange 2. The recessed cavity 8 is arranged to reduce the shielding area of the front end of the heat dissipation channel 6 to facilitate heat dissipation of the heat dissipation channel 6. Further, the recessed cavity 8 includes two groove side surfaces 8a arranged along the axial direction of the shell 1, the rear end surface of the annular flange 2 constitutes one of the groove side surfaces 8a, and the other groove side surface 8a is arranged close to the heat dissipation channel 6 to effectively expand the size of the recessed cavity 8 and further accelerate heat dissipation.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A heat dissipation structure of a servo motor housing, the housing comprising a cylindrical shell (1), the shell (1) being provided with an annular flange (2) at a front end thereof, a row of protrusions (3) being formed on an outer wall of the shell (1) and extending to the annular flange (2) at front ends thereof, the heat dissipation structure being arranged between two adjacent protrusions (3) and comprising a plurality of inner heat dissipation fins (5) formed on the outer wall of the shell (1), characterized in that, It also includes a fixedly arranged heat-conducting long plate (4), the length of the heat-conducting long plate (4) extends axially along the shell (1), and there is a certain distance between the front end of the heat-conducting long plate (4) and the annular flange (2); the axial section of the heat-conducting long plate (4) is roughly "︺" shaped, and the inner wall of the heat-conducting long plate (4), the outer side wall of the shell (1), and the corresponding two adjacent convex strips (3) form a long strip-shaped heat dissipation channel (6), and the above-mentioned inner heat dissipation fin (5) is in the heat dissipation channel (6); The outer wall of the heat-conducting long plate (4) is densely covered with long strip-shaped outer heat dissipation fins (7), and the lengths of the outer heat dissipation fins (7) and the heat-conducting long plate (4) extend in the same direction.

2. The heat dissipating structure for a servo motor housing according to claim 1, wherein The heat-conducting long plate (4) is composed of two inclined plates (4a) and an intermediate plate (4b) between the two inclined plates (4a), and the two inclined plates (4a) extend to the corresponding two convex strips (3) respectively.

3. The heat dissipating structure for a servo motor housing according to claim 2, wherein The inclined plates (4a) and the intermediate plate (4b) are both arranged with the above-mentioned outer heat dissipation fins (7), and the outer heat dissipation fins (7) on the inclined plates (4a) are evenly distributed along the width direction of the inclined plates (4a), and the outer heat dissipation fins (7) on the intermediate plate (4b) are evenly distributed along the width direction of the intermediate plate (4b).

4. The heat dissipating structure for a servo motor housing according to claim 1 or 2 or 3, wherein The heat dissipation structure also includes a recessed cavity (8) opened on the outer side wall of the shell (1), and the recessed cavity (8) is between the heat dissipation channel (6) and the annular flange (2).

5. The heat dissipating structure for a servo motor housing according to claim 4, wherein The recessed cavity (8) includes two groove sides (8a) arranged axially along the shell (1), and the rear end face of the annular flange (2) constitutes one of the groove sides (8a), and the other groove side (8a) is arranged close to the heat dissipation channel (6).

6. The heat dissipating structure for a servo motor housing according to claim 1, wherein The heat-conducting long plate (4), the convex strip (3), and the shell (1) are an integral structure.

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