Pulse driving structure of servo driver

Abstract

The utility model belongs to the technical field of servo motors, and particularly relates to a pulse driving structure of a servo driver, which comprises a shell and a servo driver main body, the servo driver main body is fixed in the shell through a fixing column, the pulse driving structure is characterized in that the top end of the shell is communicated with a driving structure, the driving structure comprises a radiating tube, and the radiating tube is communicated with the servo driver main body. The top end of the heat dissipation pipe is communicated with an air pipe, an air outlet is formed in one end of the air pipe, the other end of the air pipe is rotationally connected with a driving shaft, one end of the driving shaft is connected with a pulse generator and a motor, the other end of the driving shaft is fixedly connected with a heat dissipation fan, and the heat dissipation fan is located in the air pipe; and an air inlet box is further arranged on one side of the shell and communicates with the interior of the shell, a cooling assembly is arranged in the air inlet box, and the purpose that the servo driver is cooled through intermittent work of the driving structure is achieved, so that the service life of the driving structure is prolonged, and the energy consumption of the driving structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of servo motors, and in particular relates to a pulse drive structure of a servo driver. Background Art

[0002] A servo drive is an electronic device used to control a servo motor. It receives commands from a higher-level control system (such as a CNC, PLC, or motion controller) and converts them into the current and voltage signals required by the motor to achieve precise speed, position, and torque control. In many industrial applications, servo drives are key components for achieving automation and precision control.

[0003] Chinese utility model patent CN215344210U discloses a heat dissipation device for a servo drive, comprising: a housing and a drive structure, wherein a servo drive is fixed in the housing, and a gap is left between the servo drive and the inner wall of the housing; an air inlet and an air outlet are also provided on the housing, the drive structure is fixed to the outside of the housing, and the drive structure is connected to the air outlet; when the drive structure is started, an air flow is generated, the air flow enters from the air inlet, passes through the gap and the air outlet in sequence, and is discharged from the drive structure.

[0004] In the above technical solution, the uninterrupted airflow generated by the drive structure performs heat convection on the servo drive, increasing the flow rate of the external heat exchange air, and the sealed heat dissipation environment can prevent people from being burned while ensuring good heat dissipation conditions. However, the uninterrupted operation of the drive structure causes its own temperature to rise, affecting its performance and life. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned technical problems and provide a pulse drive structure of a servo drive, so as to achieve the heat dissipation of the servo drive by the gap work of the drive structure, thereby improving the service life and energy consumption of the drive structure.

[0006] In view of this, the utility model provides a pulse drive structure of a servo driver, comprising: a shell and a servo driver body, the servo motor body is fixed in the shell by a fixing column, and is characterized in that the top end of the shell is connected to the drive structure, and the drive structure comprises: a heat dissipation pipe, the top end of the heat dissipation pipe is connected to an air duct, one end of the air duct is provided with an air outlet, and the other end is rotatably connected to a drive shaft, one end of the drive shaft is connected to a pulse generator and a motor, and the other end is fixedly connected to a cooling fan, and the cooling fan is located in the air duct; an air inlet box is also provided on one side of the shell, and the air inlet box is connected to the inside of the shell, and a cooling component is provided in the air inlet box.

[0007] In this technical solution, the drive shaft rotates intermittently under the action of the pulse driver and the motor, so that the fan rotates intermittently, thereby avoiding overheating problems caused by long-term rotation of the fan and the drive shaft, reducing their lifespan, and thus significantly improving their service life and stability. In addition, the fan is under negative pressure, and external air is transported to the inside of the shell through an air inlet box connected to the inside of the shell. Under the action of the cooling component, the external air is cooled, thereby quickly cooling the outer wall of the driver body inside the shell, thereby improving the cooling effect of the equipment, and then the air flow after cooling the driver body is discharged from the air outlet at one end of the air duct through the heat dissipation pipe.

[0008] In the above technical solution, further, the inner wall of the heat dissipation pipe is provided with axially distributed heat dissipation strips.

[0009] In this technical solution, by providing axially distributed heat dissipation strips on the inner wall of the heat dissipation pipe, the heat dissipation area can be further increased and the heat dissipation efficiency can be improved.

[0010] In the above technical solution, further, it also includes: a baffle, one end of the baffle is connected to the outer wall of the driver body, and the other end is connected to the inner wall of the shell.

[0011] In this technical solution, the baffle helps to guide the cold air to flow in a circular shape from the air inlet box, so that the airflow can flow through the hot zone of the servo drive body in all directions, while guiding the hot air to flow to the cooling fan and heat pipe, so that it is effectively discharged out of the shell.

[0012] In the above technical solution, further, the cooling component includes: a perforated plate, wherein semiconductor refrigeration fins are symmetrically provided on the outer side of the perforated plate, and both ends of the semiconductor refrigeration fins are fixedly connected to fixed plates, and the fixed plates are fixedly connected to the inner wall of the air inlet box.

[0013] In this technical solution, after the external air enters the air inlet box, the air entering the shell of the shell is cooled first under the action of the semiconductor refrigeration plate. The action of the orifice plate enables the air to form more turbulence and eddy currents when flowing through the semiconductor refrigeration plate, thereby increasing the contact area and time between the air and the semiconductor refrigeration plate, and improving the efficiency of heat exchange. The fixing plate firmly installs the semiconductor refrigeration plate on the inner wall of the air inlet box, ensuring the stability and reliability of the semiconductor refrigeration plate during operation, and avoiding damage or falling off due to vibration or impact.

[0014] In the above technical solution, further, the semiconductor refrigeration plate is S-shaped.

[0015] In this technical solution, the S-shaped refrigeration plate can provide more cooling area, thereby achieving higher cooling efficiency without increasing the size of the device, and optimizing the distribution of airflow to a certain extent. When the air flows through the S-shaped semiconductor refrigeration plate, it will flow along a tortuous path. This flow pattern helps the air to be more evenly distributed in the air inlet box.

[0016] In the above technical solution, further, a dustproof net is provided at the outer end of the air inlet box.

[0017] In this technical solution, the dustproof net can effectively prevent dust, dirt and other tiny foreign objects from entering the air inlet box and the shell, thereby protecting the internal cooling components and the servo drive body from contamination.

[0018] The beneficial effect of the present invention is that the drive shaft rotates intermittently under the action of the pulse driver and the motor, thereby causing the fan to rotate intermittently, thereby avoiding the fan and the drive shaft from rotating for a long time, causing their own temperature to rise and reducing their lifespan. In addition, the fan is under negative pressure, and external air is transported to the inside of the shell through an air inlet box connected to the inside of the shell. Under the action of the cooling component, the external air is cooled, thereby quickly cooling the outer wall of the driver body inside the shell, thereby improving the cooling effect of the equipment, and then the air flow after cooling the driver body is discharged from the air outlet at one end of the air duct through the heat dissipation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a pulse drive structure of a servo driver of the present invention;

[0020] Figure 2 This is a cross-sectional view of a pulse drive structure of a servo driver of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of a cooling assembly of a pulse drive structure of a servo drive of the utility model;

[0022] The marks in the figure are:

[0023] 1. Housing; 2. Servo drive body; 3. Drive structure; 301. Heat dissipation pipe; 302. Air duct; 303. Air outlet; 304. Drive shaft; 305. Pulse driver; 306. Motor; 307. Fan; 308. Heat dissipation strip; 4. Air inlet box; 5. Dust screen; 6. Fixed column; 7. Cooling assembly; 8. Orifice plate; 9. Semiconductor cooling plate; 10. Fixed plate; 11. Baffle. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0025] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0026] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0028] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0029] Example 1:

[0030] Depend on Figure 1-3 As shown, this embodiment provides a pulse drive structure 3 of a servo driver, including: a shell 1 and a servo driver body 2, the servo motor 306 body is fixed in the shell 1 by a fixing column 6, and is characterized in that the top of the shell 1 is connected to the drive structure 3, and the drive structure 3 includes: a heat dissipation pipe 301, the top of the heat dissipation pipe 301 is connected to the air duct 302, one end of the air duct 302 is provided with an air outlet 303, and the other end is rotatably connected to a drive shaft 304, one end of the drive shaft 304 is connected to the pulse generator and the motor 306, and the other end is fixedly connected to a cooling fan 307, and the cooling fan 307 is located in the air duct 302; an air inlet box 4 is also provided on one side of the shell 1, and the air inlet box 4 is connected to the inside of the shell 1, and a cooling component 7 is provided in the air inlet box 4. The drive shaft 304 rotates intermittently under the action of the pulse driver 305 and the motor 306, so that the fan 307 rotates intermittently, thereby avoiding the overheating problem caused by the long-term rotation of the fan 307 and the drive shaft 304, reducing their lifespan, and thus significantly improving their service life and stability. In addition, the fan 307 is in negative pressure, and external air is transported to the inside of the shell 1 through the air inlet box 4 connected to the inside of the shell 1. Under the action of the cooling component 7, the external air is cooled, thereby quickly cooling the outer wall of the driver body inside the shell 1, thereby improving the cooling effect of the equipment, and then the air flow after cooling the driver body is discharged from the air outlet 303 at one end of the air duct 302 through the heat dissipation pipe 301.

[0031] Furthermore, the inner wall of the heat pipe 301 is provided with axially distributed heat dissipation bars 308. By providing the axially distributed heat dissipation bars 308 on the inner wall of the heat pipe 301, the heat dissipation area can be further increased and the heat dissipation efficiency can be improved.

[0032] Furthermore, the servo drive body 2 further includes a baffle 11, one end of which is connected to the outer wall of the driver body and the other end is connected to the inner wall of the housing 1. The baffle 11 helps guide the cold air from the air inlet box 4 to flow in a circular shape, allowing the airflow to flow through the hot zone of the servo drive body 2 in all directions, while guiding the hot air to flow to the cooling fan 307 and the heat pipe 301, so that it is effectively discharged outside the housing 1.

[0033] Furthermore, the cooling assembly 7 includes: an orifice plate 8, wherein a semiconductor cooling sheet 9 is symmetrically provided on the outer side of the orifice plate 8, and a fixing plate 10 is fixedly connected to both ends of the semiconductor cooling sheet 9, and the fixing plate 10 is fixedly connected to the inner wall of the air inlet box 4. After the external air enters the air inlet box 4, the air entering the shell 1 is cooled in advance by the action of the semiconductor cooling sheet 9. The orifice plate 8 enables the air to form more turbulence and eddy currents when flowing through the semiconductor cooling sheet 9, thereby increasing the contact area and time between the air and the semiconductor cooling sheet 9 and improving the efficiency of heat exchange. The fixing plate 10 firmly mounts the semiconductor cooling sheet 9 on the inner wall of the air inlet box 4, ensuring the stability and reliability of the semiconductor cooling sheet 9 during operation and avoiding damage or falling off due to vibration or impact.

[0034] Furthermore, the semiconductor refrigeration plate 9 is S-shaped. The S-shaped refrigeration plate can provide a larger cooling area, thereby achieving higher cooling efficiency without increasing the size of the device, and optimizing the distribution of airflow to a certain extent. When air flows through the S-shaped semiconductor refrigeration plate 9, it flows along a tortuous path. This flow pattern helps to distribute the air more evenly in the air inlet box 4.

[0035] Furthermore, a dust screen 5 is provided at the outer end of the air inlet box 4. The dust screen 5 can effectively prevent dust, dirt and other small foreign matter from entering the air inlet box 4 and the housing 1, thereby protecting the internal cooling component 7 and the servo drive body 2 from contamination.

[0036] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A pulse drive structure of a servo drive, comprising: A housing (1), a servo driver body (2) and a servo motor (306), wherein the servo motor (306) body is fixed in the housing (1) via a fixing column (6), and is characterized in that the top end of the housing (1) is connected to a driving structure (3), and the driving structure (3) comprises: a heat dissipation pipe (301), the top end of the heat dissipation pipe (301) is connected to an air duct (302), one end of the air duct (302) is provided with an air outlet (303), and the other end is rotatably connected to a driving shaft (304), one end of the driving shaft (304) is connected to a pulse generator and a servo motor (306), and the other end is fixedly connected to a cooling fan (307), and the cooling fan (307) is located in the air duct (302); an air inlet box (4) is also provided on one side of the housing (1), the air inlet box (4) is connected to the inside of the housing (1), and a cooling component (7) is provided in the air inlet box (4).

2. The pulse drive structure (3) of a servo drive according to claim 1, characterized in that: The inner wall of the heat dissipation pipe (301) is provided with axially distributed heat dissipation strips (308).

3. The pulse drive structure (3) of a servo drive according to claim 2, characterized in that: Also includes: A baffle (11), one end of which is connected to the outer wall of the driver body, and the other end of which is connected to the inner wall of the housing (1).

4. The pulse drive structure (3) of a servo drive according to claim 1, characterized in that: The cooling assembly (7) comprises: an orifice plate (8), wherein a semiconductor cooling plate (9) is symmetrically provided on an outer side of the orifice plate (8), and both ends of the semiconductor cooling plate (9) are fixedly connected to a fixing plate (10), and the fixing plate (10) is fixedly connected to the inner wall of the air inlet box (4).

5. The pulse drive structure (3) of a servo drive according to claim 4, characterized in that: The semiconductor refrigeration plate (9) is S-shaped.

6. A pulse drive structure (3) of a servo drive according to claim 5, characterized in that: The outer end of the air inlet box (4) is also provided with a dustproof net (5).

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