Servo motor with high heat dissipation

Abstract

The utility model discloses a servo motor with high heat dissipation, which comprises a purification bin and a motor body fixed at the top of the purification bin, the motor body comprises a shell and an output shaft, a permanent magnet is embedded in the shell, a winding is wound on the output shaft, one end of the output shaft penetrates to the outside of the shell, and an exhaust hole is arranged at the top of the shell. Through arrangement of the exhaust hole, the one-way valve, the dehumidification particles, the semiconductor chilling plate and the air supply assembly, when the motor body works, the semiconductor chilling plate and the air pump are turned on, the air pump injects air into the purification bin, the semiconductor chilling plate cools the air in the purification bin, and the dehumidification particles adsorb water vapor in cold air; dry low-temperature air enters the shell through the ventilation pipe, the one-way valve is used for discharging air in the shell, but external moist air cannot enter the shell through the one-way valve, so that too much water vapor cannot enter the shell, and the service life of internal components is not easily affected by the moist air.

Description

Technical Field

[0001] The utility model relates to the field of servo motors, and particularly relates to a servo motor with high heat dissipation. Background Art

[0002] A servo motor can control speed, and its position accuracy is very accurate. It can convert a voltage signal into torque and rotational speed to drive a control object. The rotational speed of the rotor of the servo motor is controlled by an input signal and can respond quickly. In an automatic control system, it is used as an actuator and has characteristics such as a small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft.

[0003] When the servo motor works for a long time, a large amount of heat will be generated. Therefore, heat dissipation needs to be provided to ensure its normal operation. A more economical heat dissipation method is to inject air into the servo motor and then discharge the hot air. However, this heat dissipation method easily causes a large amount of humid air to circulate inside the servo motor. The internal components of the servo motor being in a high-humidity environment for a long time will affect the service life. Therefore, a servo motor with high heat dissipation is proposed. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a servo motor with high heat dissipation, which can reduce the water vapor entering the inside of the servo motor on the basis of efficient heat dissipation and further extend the service life of the servo motor.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A servo motor with high heat dissipation of the utility model includes a purification chamber and a motor body fixed on the top of the purification chamber. The motor body includes a housing embedded with a permanent magnet and an output shaft wound with windings. One end of the output shaft penetrates to the outside of the housing. An exhaust hole is opened at the top of the housing, and a one-way valve is fixedly arranged at the corresponding position of the top of the housing and the exhaust hole. The one-way valve is set to prevent outside air from entering the inside of the housing through the exhaust hole.

[0007] A ventilation pipe is communicated inside the housing, and the other end of the ventilation pipe is communicated with the purification chamber. Two mesh plates are fixedly arranged inside the purification chamber. A dehumidification granule is filled between the mesh plates inside the purification chamber. A semiconductor refrigerating sheet with one end located inside the purification chamber is embedded at the bottom of the purification chamber. The semiconductor refrigerating sheet is located on the left side of the mesh plate. An air supply component for injecting air into the purification chamber is arranged on the left side of the purification chamber.

[0008] As a preferred technical solution of the utility model, support plates are fixedly arranged on both the left and right sides of the bottom of the purification chamber. A replacement door is embedded on the front of the purification chamber, and the replacement door is located between the two mesh plates.

[0009] As a preferred technical solution of the present utility model, heat exchange fins are fixedly arranged on the top of the semiconductor refrigeration sheet, and heat dissipation fins are fixedly arranged on the bottom of the semiconductor refrigeration sheet.

[0010] As a preferred technical solution of the present utility model, the air supply assembly includes a support plate fixed on the left side of the left support plate. A gas pump is fixedly arranged on the top of the support plate, and an air supply pipe with one end penetrating into the purification chamber is communicated with the air outlet of the gas pump.

[0011] As a preferred technical solution of the present utility model, air permeable mesh holes are formed inside the mesh plate, and the aperture of the air permeable mesh holes is smaller than the particle size of the dehumidifying particles.

[0012] As a preferred technical solution of the present utility model, the exhaust hole is located on the left side of the top of the housing, and the ventilation pipe is located on the right side of the bottom of the housing.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing an exhaust hole, a one-way valve, dehumidifying particles, a semiconductor refrigeration sheet and an air supply assembly, when the motor body works, the semiconductor refrigeration sheet and the air pump are turned on. The air pump injects air into the purification chamber. The semiconductor refrigeration sheet cools the air in the purification chamber. The dehumidifying particles adsorb the water vapor in the cold air. The dry and cold air enters the housing through the ventilation pipe. The one-way valve is provided to allow the air in the housing to be discharged, but the humid air from the outside cannot enter the housing through the one-way valve. In this way, not too much water vapor enters the housing, and the internal components are not easily affected by the humid air and their service life is not easily affected. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the cross-sectional view of the present utility model;

[0018] In the figure: 1. Purification chamber; 101. Support plate; 102. Refueling door; 2. Housing; 21. Exhaust hole; 22. One-way valve; 3. Winding; 4. Output shaft; 5. Ventilation pipe; 6. Mesh plate; 7. Dehumidifying particles; 8. Semiconductor refrigeration sheet; 81. Heat exchange fins; 82. Heat dissipation fins; 9. Support plate; 10. Air pump; 11. Air supply pipe. Detailed Embodiments

[0019] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0020] Among them, the same reference numerals in the drawings all refer to the same components.

[0021] Embodiment 1

[0022] As Figure 1-2 shown, the present utility model provides a servo motor with high heat dissipation, which includes a purification chamber 1 and a motor body fixed on the top of the purification chamber 1. The motor body includes a housing 2 with an embedded permanent magnet and an output shaft 4 wound with a winding 3. One end of the output shaft 4 penetrates to the outside of the housing 2. An exhaust hole 21 is opened at the top of the housing 2, and a one-way valve 22 is fixedly arranged at the corresponding position of the top of the housing 2 and the exhaust hole 21. The exhaust hole 21 is located on the left side of the top of the housing 2, and a ventilation pipe 5 is located on the right side of the bottom of the housing 2. The one-way valve 22 is provided to prevent external air from entering the inside of the housing 2 through the exhaust hole 21.

[0023] A ventilation pipe 5 is connected to the inside of the housing 2, and the other end of the ventilation pipe is connected to the purification chamber 1. Two mesh plates 6 are fixedly arranged inside the purification chamber 1, and dehumidifying particles 7 are filled between the mesh plates 6 inside the purification chamber 1. Support plates 101 are fixedly arranged on the left and right sides of the bottom of the purification chamber 1. A replacement door 102 is embedded on the front of the purification chamber 1. The replacement door 102 is located between the two mesh plates 6. The dehumidifying particles 7 are made of activated carbon particles. The replacement door 102 is regularly opened to replace the activated carbon particles. Ventilation holes are opened inside the mesh plates 6, and the aperture of the ventilation holes is smaller than the particle size of the dehumidifying particles 7. A semiconductor refrigeration sheet 8 with one end located inside the purification chamber 1 is embedded at the bottom of the purification chamber 1. The semiconductor refrigeration sheet 8 is located on the left side of the mesh plate 6. An air supply assembly for injecting air into the purification chamber 1 is arranged on the left side of the purification chamber 1.

[0024] In addition, a heat exchange fin 81 is fixedly arranged on the top of the semiconductor refrigeration sheet 8, and a heat dissipation fin 82 is fixedly arranged on the bottom of the semiconductor refrigeration sheet 8. The heat exchange fin 81 and the heat dissipation fin 82 are both made of copper sheets. The heat exchange fin 81 and the heat dissipation fin 82 are provided to increase the heat exchange area.

[0025] In this embodiment, the air supply assembly includes a support plate 9 fixed on the left side of the left support plate 101. An air pump 10 is fixedly arranged on the top of the support plate 9. The air outlet of the air pump 10 is communicated with an air supply pipe 11 with one end penetrating into the purification chamber 1.

[0026] In summary, the utility model, by providing an exhaust hole 21, a one-way valve 22, dehumidifying particles 7, a semiconductor refrigeration chip 8 and an air supply assembly, when the motor body works, the semiconductor refrigeration chip 8 and the air pump 10 are turned on. The air pump 10 injects air into the purification chamber 1. The semiconductor refrigeration chip 8 cools the air in the purification chamber 1. The dehumidifying particles 7 adsorb the water vapor in the cold air. The dry and cold air enters the housing 2 through the ventilation pipe 5. The one-way valve 22 is provided to allow the air in the housing 2 to be discharged, but the humid air from the outside cannot enter the housing 2 through the one-way valve 22. In this way, not too much water vapor enters the housing 2, and the internal components are not easily affected by the humid air and their service life is not reduced.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A servo motor with high heat dissipation, characterized in that: The invention comprises a purification chamber (1) and a motor body fixed on the top of the purification chamber (1), wherein the motor body comprises a housing (2) with a permanent magnet embedded therein and an output shaft (4) wound with a winding (3), and one end of the output shaft (4) penetrates the outside of the housing (2); The top of the shell (2) is provided with an exhaust hole (21), and a one-way valve (22) is fixedly provided at a position of the top of the shell (2) corresponding to the exhaust hole (21); The interior of the shell (2) is connected to a ventilation pipe (5) whose other end is connected to the purification chamber (1); two mesh plates (6) are fixedly arranged inside the purification chamber (1); the interior of the purification chamber (1) and between the mesh plates (6) are filled with dehumidification particles (7); a semiconductor cooling plate (8) with one end located inside the purification chamber (1) is embedded in the bottom of the purification chamber (1); the semiconductor cooling plate (8) is located on the left side of the mesh plate (6); and an air supply component for injecting air into the purification chamber (1) is arranged on the left side of the purification chamber (1).

2. A servo motor with high heat dissipation according to claim 1, characterized in that: Support plates (101) are fixedly arranged on both left and right sides of the bottom of the purification bin (1), and a material change door (102) is embedded in the front of the purification bin (1), and the material change door (102) is located between the two mesh plates (6).

3. A servo motor with high heat dissipation according to claim 2, characterized in that: A heat exchange fin (81) is fixedly arranged on the top of the semiconductor refrigeration plate (8), and a heat dissipation fin (82) is fixedly arranged on the bottom of the semiconductor refrigeration plate (8).

4. A servo motor with high heat dissipation according to claim 2, characterized in that: The air supply assembly comprises a support plate (9) fixed on the left side of the support plate (101) on the left side, an air pump (10) is fixedly arranged on the top of the support plate (9), and an air outlet of the air pump (10) is connected to an air supply pipe (11) having one end extending through the interior of the purification chamber (1).

5. The servo motor with high heat dissipation according to claim 1, characterized in that: The mesh plate (6) is provided with air-permeable mesh holes inside, and the aperture of the air-permeable mesh holes is smaller than the particle size of the dehumidifying particles (7).

6. A servo motor with high heat dissipation according to claim 1, characterized in that: The exhaust hole (21) is located at the left side of the top of the shell (2), and the ventilation pipe (5) is located at the right side of the bottom of the shell (2).

Images