Heat dissipation structure of servo driver

Abstract

The utility model discloses a heat dissipation structure of a servo driver, which comprises an outer shell, an inner shell and a driver body, the driver body is positioned between the inner walls of the opposite sides of the inner shell, the inner shell is positioned inside the outer shell, and the heat dissipation structure of the servo driver further comprises regulation and control mechanisms which are positioned on the two sides of the inner shell and are connected with the driver body. And the regulation and control mechanism comprises two mounting plates, fixing grooves are formed in the tops of the mounting plates, and mounting boxes are arranged on the inner walls of the fixing grooves. The heat dissipation structure of the servo driver disclosed by the utility model has the effects that the heat dissipation function is effectively realized, the heat dissipation effect is better, the stable operation of each electric appliance element can be protected, the overall service life is prolonged, the switch of the heat dissipation assembly can be controlled according to the temperature, and the waste of electric power resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of servo drivers, in particular to a heat dissipation structure of a servo driver. Background Art

[0002] A servo drive, also known as a "servo controller" or "servo amplifier," is a controller used to control a servo motor. Its function is similar to that of a frequency converter on an ordinary AC motor. It is part of a servo system and is primarily used in high-precision positioning systems. It generally controls the servo motor through position, speed, and torque to achieve high-precision transmission system positioning. It is a high-end product in transmission technology.

[0003] The patent document with application number 202222040970.7 discloses a heat dissipation structure of a servo drive, including a servo drive, a placement slot, a cooling fan and a ventilation plate. The placement slot is opened on the servo drive, the ventilation plate is fixedly installed in the placement slot, the cooling fan is movably installed in the placement slot and arranged between the ventilation plate and the servo drive, and also includes a movable mechanism, which is movably installed in the placement slot, and the movable mechanism is used to control the movement of the cooling fan.

[0004] Generally, a cooling fan is installed inside a servo drive to dissipate the heat generated during operation to achieve a heat dissipation effect. However, traditional cooling fans can usually only run at a fixed speed and cannot be adjusted according to the temperature inside the servo drive. This means that when the temperature is low, the cooling fan may still run at a higher speed, resulting in energy waste. Utility Model Content

[0005] The utility model discloses a heat dissipation structure of a servo drive, which aims to solve the technical problem that a heat dissipation fan is generally installed inside the servo drive to discharge the heat generated during operation to achieve a heat dissipation effect, but the traditional heat dissipation fan can usually only run at a fixed speed and cannot be turned on or off according to the temperature inside the servo drive. This means that when the temperature is low, the heat dissipation fan may still run at a high speed, resulting in energy waste.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A heat dissipation structure for a servo drive, comprising an outer shell, an inner shell, and a drive body, wherein the drive body is located between inner walls on opposite sides of the inner shell, and the inner shell is located inside the outer shell, and further comprising:

[0008] Regulating mechanism: located on both sides of the inner shell, the regulating mechanism includes two mounting plates, a fixing groove is opened on the top of the mounting plate, a mounting box is provided on the inner wall of the fixing groove, a fixing cylinder is provided inside the mounting box, one end of the fixing cylinder extends to the interior of the inner shell and is fixedly connected to a heat-conducting column, a movable column is movably connected to the interior of the fixing cylinder, and a heat-conducting cavity is provided inside the fixing cylinder, a metal guide is provided on the end of the movable column away from the fixing cylinder, a return spring is provided between the end of the movable column located inside the fixing cylinder and the position of the one end of the fixing cylinder close to the circumferential inner wall, electrode sheets with contacts are provided on both sides of the metal guide, and both electrode sheets are located inside the mounting box, and a heat dissipation component is provided on the top of the mounting box;

[0009] The first heat dissipation mechanism: located on the top of the inner shell

[0010] The second heat dissipation mechanism is located on both sides of the driver body.

[0011] In this solution, when the electrical components of the driver body inside the inner shell work and generate a certain amount of heat, the heat is transferred to the heat-conducting cavity inside the fixed cylinder by the heat-conducting column. After absorbing heat, the temperature of the air inside the heat-conducting cavity rises and the volume expands. The expanded air generates pressure, pushing the movable column forward. During the movement of the movable column, it squeezes the return spring connected to it. The return spring is compressed and stores energy. One end of the movable column pushes the two ends of the metal guide to contact the electrode sheet, thereby forming a closed circuit. In the closed circuit, the heat dissipation component can actively remove the hot air from the outer shell and the inner shell, and under the action of negative pressure, the outside air enters the interior of the outer shell and passes through each electrical component in the inner shell. When the hot air pressure inside the heat-conducting cavity is released and gradually disappears, the return spring releases the stored energy, pulls the movable column back to the initial position, thereby disconnecting the closed circuit and the heat dissipation component stops working. This device can effectively realize the heat dissipation function, has a good heat dissipation effect, can protect the stable operation of each electrical component, and improve the overall service life. In addition, the heat dissipation component can be controlled on and off according to the temperature to avoid waste of power resources.

[0012] In a preferred embodiment, the first heat dissipation mechanism includes five heat dissipation fins, the heat dissipation fins are located at the top of the inner shell, the two ends of the heat dissipation fins are respectively connected to the two inner walls of the outer shell, and the top outer wall of the inner shell is provided with twelve heat conduction plates, which are connected to the heat dissipation fins.

[0013] In this solution, the heat conducting plate can conduct the heat generated by the driver body inside the inner shell when it is working to the heat dissipation fins. The heat dissipation fins accelerate the heat dissipation by increasing the surface area. When the regulating mechanism and the heat dissipation component are working, the hot air inside the inner shell is discharged to the outside. At this time, under the action of negative pressure, the external air will enter the inner shell through the first heat dissipation mechanism, thereby forming air convection and realizing rapid heat dissipation.

[0014] In a preferred embodiment, the second heat dissipation mechanism includes a plurality of heat dissipation plates, which are respectively installed on both sides of the driver body, and heat dissipation holes corresponding to the positions of the heat dissipation plates are opened on the outer walls on both sides of the outer shell, and filter plates are provided on the inner walls on both sides of the outer shell near the heat dissipation holes.

[0015] The two filter plates are mainly set up to intercept dust in the air outside the outer shell, preventing dust from entering the inner shell, thereby affecting the service life of the driver body and internal electronic components. The heat dissipation holes can serve as outlets for heat dissipation of the heat sink and convection of external air, and as air intakes for external air to enter the inner shell.

[0016] As can be seen from the above, a heat dissipation structure of a servo drive includes an outer shell, an inner shell and a drive body, wherein the drive body is located between inner walls on opposite sides of the inner shell, and the inner shell is located inside the outer shell, and further includes:

[0017] Regulating mechanism: located on both sides of the inner shell, the regulating mechanism includes two mounting plates, a fixing groove is opened on the top of the mounting plate, a mounting box is provided on the inner wall of the fixing groove, a fixing cylinder is provided inside the mounting box, one end of the fixing cylinder extends to the interior of the inner shell and is fixedly connected to a heat-conducting column, a movable column is movably connected to the interior of the fixing cylinder, and a heat-conducting cavity is provided inside the fixing cylinder, a metal guide is provided on the end of the movable column away from the fixing cylinder, a return spring is provided between the end of the movable column located inside the fixing cylinder and the position of the one end of the fixing cylinder close to the circumferential inner wall, electrode sheets with contacts are provided on both sides of the metal guide, and both electrode sheets are located inside the mounting box, and a heat dissipation component is provided on the top of the mounting box;

[0018] A first heat dissipation mechanism is located on the top of the inner shell;

[0019] The second heat dissipation mechanism is located on both sides of the driver body. The heat dissipation structure of the servo driver provided by the utility model has the technical effect of effectively realizing the heat dissipation function, having a good heat dissipation effect, being able to protect the stable operation of various electrical components, and prolonging the overall service life. In addition, the heat dissipation component can be controlled to switch on and off according to the temperature, thus avoiding the waste of power resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of the heat dissipation structure of a servo drive.

[0021] Figure 2 The present invention provides a schematic structural diagram of a heat dissipation component of a servo drive heat dissipation structure.

[0022] Figure 3 The present invention provides a schematic structural diagram of a control mechanism for the heat dissipation structure of a servo drive.

[0023] Figure 4 This is a structural schematic diagram of a first heat dissipation mechanism and a second heat dissipation mechanism of a heat dissipation structure of a servo drive proposed by the present invention.

[0024] In the accompanying drawings: 1. Outer shell; 2. Mounting cover; 3. Air outlet; 4. Dust screen; 5. Heat dissipation hole; 6. Fan shell; 7. Mounting plate; 8. Protective cover; 9. Cooling fan; 10. Air inlet; 11. Limiting frame; 12. Heat conducting column; 13. Fixing cylinder; 14. Reset spring; 15. Movable column; 16. Metal guide; 17. Electrode sheet; 18. Heat dissipation fin; 19. Heat conducting plate; 20. Inner shell; 21. Heat dissipation plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0026] The heat dissipation structure of a servo drive disclosed in the present invention is mainly used in general servo drives, in which a heat dissipation fan is installed inside to discharge the heat generated during operation to achieve a heat dissipation effect. However, traditional heat dissipation fans can usually only run at a fixed speed and cannot be adjusted according to the temperature inside the servo drive. This means that when the temperature is low, the heat dissipation fan may still run at a higher speed, resulting in energy waste.

[0027] Reference Figure 1 、 Figure 2 and Figure 3A heat dissipation structure of a servo drive includes an outer shell 1, an inner shell 20, and a drive body, wherein the drive body is located between inner walls of the inner shell 20 on opposite sides, and the inner shell 20 is located inside the outer shell 1, and further includes:

[0028] Regulating mechanism: Located on both sides of the inner shell 20, the regulating mechanism includes two mounting plates 7, a fixing groove is provided on the top of the mounting plate 7, a mounting box is provided on the inner wall of the fixing groove, a fixing cylinder 13 is provided inside the mounting box, one end of the fixing cylinder 13 extends to the interior of the inner shell 20 and is fixedly connected to a heat-conducting column 12, a movable column 15 is movably connected to the interior of the fixing cylinder 13, and a heat-conducting cavity is provided inside the fixing cylinder 13, a metal guide 16 is provided at one end of the movable column 15 away from the fixed cylinder 13, a return spring 14 is provided between one end of the movable column 15 located inside the fixed cylinder 13 and one end of the fixed cylinder 13 close to the inner wall of the circumference, electrode sheets 17 with contacts are provided on both sides of the metal guide 16, and the two electrode sheets 17 are both located inside the mounting box, and a heat dissipation component is provided on the top of the mounting box;

[0029] The first heat dissipation mechanism is located at the top of the inner shell 20 .

[0030] The second heat dissipation mechanism is located on both sides of the driver body.

[0031] Among them, the heat dissipation component includes two fan shells 6, a heat dissipation fan 9 is installed inside the fan shell 6, a protective cover 8 is provided on the top of the fan shell 6, and several air inlets 10 are opened on the two fan shells 6 near the two sides of the inner shell 20. The air inlet 10 is located below the heat dissipation fan 9. When in use, the motor of the heat dissipation fan 9 is connected to the circuit. The motor is a key component for converting electrical energy into mechanical energy (the motor is not drawn in the figure). The specific position should be installed on the top of the installation box and connected to the closed circuit. It will drive the fan blades of the heat dissipation fan 9 to rotate, and finally realize the active heat dissipation function, which is more energy-saving and has lower energy consumption. After the heat dissipation fan 9 works, the hot air inside the inner shell 20 enters the fan shell through the air inlet 10, thereby forcing the hot air out. At the same time, under the action of negative pressure, the external air will enter the inner shell 20 through the first heat dissipation mechanism, thereby quickly realizing heat dissipation.

[0032] During the specific implementation process, three limit frames 11 are provided on the circumferential outer wall of the fan casing 6, two of which are centrally symmetrical. Three limit grooves are opened on the top outer wall of the outer shell 1. The limit frames 11 are clamped on the inner walls of the limit grooves, thereby limiting the fan casing 6 and increasing the stability of the fan casing 6 during installation. At the same time, it also facilitates the rapid withdrawal and disassembly of the fan casing 6 and the cooling fan 9.

[0033] The metal guide piece 16 is a semi-arc structure, which allows both ends of the metal guide piece 16 to contact the contacts of the two electrode pieces 17 at the same time, thereby forming a closed circuit to drive the heat dissipation fan 9 to rotate.

[0034] Specifically, when in use, when the electrical components of the driver body inside the inner shell 20 work and generate a certain amount of heat, the heat is conducted to the heat conduction cavity inside the fixed cylinder 13 by the heat conduction column 12. After absorbing the heat, the air inside the heat conduction cavity increases in temperature and expands in volume. The expanded air generates pressure, pushing the movable column 15 to move forward. During the movement of the movable column 15, the reset spring 14 connected to it is squeezed. The reset spring 14 is compressed and stores energy. One end of the movable column 15 pushes the two ends of the metal guide 16 to contact the electrode sheet 17, thereby forming a closed circuit. In the closed circuit, the heat dissipation component can The hot air inside the body 1 and the inner shell 20 is actively brought out, and under the action of negative pressure, the outside air enters the interior of the outer shell 1 and passes through each electrical component in the inner shell 20. When the hot air pressure inside the heat conduction cavity is released and gradually disappears, the reset spring 14 releases the stored energy and pulls the movable column 15 back to the initial position, thereby disconnecting the closed circuit and stopping the heat dissipation component from working. This device can effectively realize the heat dissipation function, has a good heat dissipation effect, can protect the stable operation of each electrical component, and improve the overall service life. It can also control the switch of the heat dissipation component according to the temperature to avoid waste of power resources.

[0035] Reference Figure 1 and Figure 4 In a preferred embodiment, the first heat dissipation mechanism includes five heat dissipation fins 18, which are located at the top of the inner shell 20. The two ends of the heat dissipation fins 18 are respectively connected to the inner walls of the outer shell 1 on both sides. Twelve heat conducting plates 19 are provided on the top outer wall of the inner shell 20, and the heat conducting plates 19 are connected to the heat dissipation fins 18.

[0036] Specifically, the heat conducting plate 19 can conduct the heat generated by the driver body inside the inner shell 20 when it is working to the heat dissipation fins 18. The heat dissipation fins 18 accelerate the heat dissipation by increasing the surface area. When the regulating mechanism and the heat dissipation component are working, the air with heat inside the inner shell 20 is discharged to the outside. At this time, under the action of negative pressure, the external air will enter the inner shell 20 through the first heat dissipation mechanism, thereby forming air convection and realizing rapid heat dissipation.

[0037] Reference Figure 1 and Figure 4 In a preferred embodiment, the second heat dissipation mechanism includes a plurality of heat dissipation plates 21, which are respectively installed on both sides of the driver body. The outer walls on both sides of the outer shell 1 are provided with heat dissipation holes 5 corresponding to the positions of the heat dissipation plates 21, and the inner walls on both sides of the outer shell 1 are provided with filter plates near the heat dissipation holes 5.

[0038] Among them, the top outer wall of the outer shell 1 is provided with an installation cover 2, and the top outer wall of the installation cover 2 is provided with two air outlets 3. The inner wall of the air outlet 3 is provided with a dustproof net 4. The air outlet 3 corresponds to the position of the cooling fan 9. The dustproof net 4 can prevent dust in the external air from directly entering the interior of the outer shell 1, thereby affecting the service life of the driver body and internal electronic components, while avoiding affecting the heat dissipation function inside the inner shell 20.

[0039] Specifically, the two filter plates are mainly set to intercept dust in the air outside the outer shell 1, to prevent dust from entering the interior of the inner shell 20, thereby affecting the service life of the driver body and internal electronic components. The heat dissipation holes 5 set can serve as an outlet for heat dissipation of the heat dissipation plate 21 and convection of external air, and can also serve as an air intake for external air to enter the interior of the outer shell 1.

[0040] Working principle: When the electrical components of the driver body inside the inner shell 20 work and generate a certain amount of heat, the heat is transferred to the heat-conducting cavity inside the fixed cylinder 13 by the heat-conducting column 12. After absorbing heat, the temperature of the air inside the heat-conducting cavity rises and the volume expands. The expanded air generates pressure, pushing the movable column 15 to move forward. During the movement of the movable column 15, it will squeeze the return spring 14 connected to it. The return spring 14 is compressed and stores energy. One end of the movable column 15 pushes the two ends of the metal guide plate 16 to contact the electrode plate 17, thereby forming a closed circuit. In the closed circuit, the heat dissipation component can actively bring out the hot air inside the outer shell 1 and the inner shell 20, and under the action of negative pressure, the outside air enters the interior of the outer shell 1 and passes through each electrical component in the inner shell 20. When the hot air pressure inside the heat-conducting cavity is released and gradually disappears, the return spring 14 releases the stored energy and pulls the movable column 15 back to its initial position, thereby disconnecting its closed circuit and the heat dissipation component stops working.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A heat dissipation structure of a servo drive, comprising an outer shell (1), an inner shell (20) and a drive body, characterized in that: The driver body is located between inner walls on opposite sides of the inner shell (20), and the inner shell (20) is located inside the outer shell (1), and further comprises: A regulating mechanism: located on both sides of the inner shell (20), the regulating mechanism includes two mounting plates (7), a fixing groove is provided on the top of the mounting plate (7), a mounting box is provided on the inner wall of the fixing groove, a fixing cylinder (13) is provided inside the mounting box, one end of the fixing cylinder (13) extends to the inside of the inner shell (20) and is fixedly connected to a heat-conducting column (12), a movable column (15) is movably connected inside the fixing cylinder (13), and a heat-conducting cavity is provided inside the fixing cylinder (13), a metal guide (16) is provided at one end of the movable column (15) away from the fixing cylinder (13), a return spring (14) is provided between one end of the movable column (15) located inside the fixing cylinder (13) and a position of one end of the fixing cylinder (13) close to the inner wall of the circumference, electrode sheets (17) with contacts are provided on both sides of the metal guide (16), and both electrode sheets (17) are located inside the mounting box, and a heat dissipation component is provided on the top of the mounting box; A first heat dissipation mechanism: located at the top of the inner shell (20); The second heat dissipation mechanism is located on both sides of the driver body.

2. The heat dissipation structure of a servo drive according to claim 1, characterized in that: The heat dissipation assembly comprises two fan housings (6), a heat dissipation fan (9) is installed inside the fan housing (6), a protective cover (8) is provided on the top of the fan housing (6), and a plurality of air inlets (10) are provided on the two fan housings (6) near both sides of the inner housing (20), and the air inlets (10) are located below the heat dissipation fan (9).

3. The heat dissipation structure of a servo drive according to claim 2, characterized in that: The circumferential outer wall of the fan housing (6) is provided with three limiting frames (11), wherein two of the limiting frames (11) are centrally symmetrical. The top outer wall of the outer shell (1) is provided with three limiting grooves, and the limiting frames (11) are clamped to the inner walls of the limiting grooves.

4. The heat dissipation structure of a servo drive according to claim 3, characterized in that: The metal guide piece (16) has a semi-arc structure.

5. The heat dissipation structure of a servo drive according to claim 1, characterized in that: The first heat dissipation mechanism includes five heat dissipation fins (18), the heat dissipation fins (18) are located on the top of the inner shell (20), the two ends of the heat dissipation fins (18) are respectively connected to the two inner walls of the outer shell (1), and the top outer wall of the inner shell (20) is provided with twelve heat conduction plates (19), and the heat conduction plates (19) are connected to the heat dissipation fins (18).

6. The heat dissipation structure of a servo drive according to claim 5, characterized in that: The second heat dissipation mechanism comprises a plurality of heat dissipation plates (21), wherein the plurality of heat dissipation plates (21) are respectively mounted on both sides of the driver body, and heat dissipation holes (5) corresponding to the positions of the heat dissipation plates (21) are provided on both sides of the outer wall of the outer shell (1), and filter plates are provided at positions close to the heat dissipation holes (5) on both sides of the inner wall of the outer shell (1).

7. The heat dissipation structure of a servo drive according to claim 2, characterized in that: The top outer wall of the outer shell (1) is provided with a mounting cover (2), the top outer wall of the mounting cover (2) is provided with two air outlets (3), the inner walls of the air outlets (3) are provided with dustproof nets (4), and the positions of the air outlets (3) and the heat dissipation fans (9) correspond to each other.

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