Two-shaft stepping motor driver with good heat dissipation

Abstract

The utility model relates to the technical field of stepping motor drivers, in particular to a two-shaft stepping motor driver with good heat dissipation, which comprises a driver main body used for converting electric pulse into angular displacement, the driver main body comprises a shell, a COM mounting plate, a COM control plate and a DRV driving plate, one side of the shell is fixedly connected with a mounting block used for mounting, and the other side of the shell is fixedly connected with a motor. A COM installation plate is arranged on one side of the outer shell, a COM control plate and a DRV driving plate are installed on one side of the COM installation plate, a DRV auxiliary fixing heat dissipation plate is arranged on one side of the DRV driving plate, and a heat dissipation device with an L-shaped section is arranged on one side of the outer shell. The dustproof assembly is arranged at the heat dissipation holes, so that dust is not prone to entering the driver in the heat dissipation process, and meanwhile the dustproof net can be detached and cleaned through hook-and-loop fasteners after being used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of stepper motor drivers, in particular to a two-axis stepper motor driver with good heat dissipation. Background Art

[0002] A stepper motor driver is an actuator that converts electrical pulses into angular displacement. A two-axis stepper motor driver is a device used to control the movement of a two-axis stepper motor. It achieves the rotation of the motor by providing appropriate current and voltage, thereby precisely controlling the position and speed of the motor.

[0003] The common two-axis stepper motor driver on the market currently has a large amount of current passing through it when in use. Moreover, the heat is difficult to dissipate after long-term use, which may cause damage to the internal components of the driver and shorten the service life of the driver. Therefore, a two-axis stepper motor driver with good heat dissipation is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a two-axis stepper motor driver with good heat dissipation, so as to solve the problem that the heat of the driver is difficult to dissipate after long-term use.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A two-axis stepper motor driver with good heat dissipation includes a driver body for converting electrical pulses into angular displacement. The driver body includes a housing, a COM mounting plate, a COM control board and a DRV drive board. A mounting block for installation is fixedly connected to one side of the housing. A COM mounting plate is provided on one side of the housing. A COM control board and a DRV drive board are installed on one side of the COM mounting plate. A DRV auxiliary fixed heat dissipation plate is provided on one side of the DRV drive board. A radiator with an L-shaped cross-section is provided on one side of the housing.

[0007] Preferably, threaded pillars are provided on the inner sides of both sides of the radiator, and the DRV drive boards are fixed to the inner side of the housing in a group of two via a COM mounting plate.

[0008] Preferably, the six sides of the shell connected to the radiator are all provided with protruding blocks for easy positioning, and heat dissipation holes for ventilation are opened on both sides of the shell, and the heat dissipation holes are arranged in a long rectangular shape.

[0009] Preferably, a dustproof component is provided on one side of the heat dissipation hole, and the dustproof component includes a dustproof net, a fixing belt and Velcro.

[0010] Preferably, a flexible fixing belt is attached to one side of the shell and is formed into a frame. A dustproof net is fixedly connected to the inner side of the fixing belt. Velcro is embedded in both the fixing belt and one side of the shell.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, a driver body, a shell, a mounting block, a COM mounting plate, a COM control board, a DRV driver board, a DRV auxiliary fixed heat sink and a radiator are provided. The radiator and the DRV auxiliary fixed heat sink are used together to effectively dissipate heat from the electronic components inside the shell. The heat dissipation holes opened at the shell allow the air inside the shell and the outside air to circulate, thereby increasing the heat dissipation effect. Since threaded pillars are riveted on the inner sides of both sides of the radiator, the process installation method is simplified. The COM control board and the two DRV driver boards are connected through the COM mounting plate, which simplifies the wiring structure of the product and realizes a one-to-many driving method. The DRV auxiliary fixed heat sink reinforces the installation of the DRV driver board. The dustproof components, dustproof net, fixing belt and Velcro are provided, and the dustproof net effectively prevents dust from the heat dissipation holes, so that dust is not easily introduced into the shell from the heat dissipation holes during the air circulation during heat dissipation. The Velcro is provided to facilitate the replacement of the dustproof net. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the radiator of the utility model;

[0015] Figure 3 This is a schematic diagram of the assembly structure of the dustproof component of the utility model;

[0016] Figure 4 This is a schematic diagram of the shell structure of the utility model.

[0017] In the figure: 1. Driver body; 11. Housing; 12. COM mounting plate; 13. COM control board; 14. DRV driver board; 2. DRV auxiliary fixing heat sink; 3. Radiator; 4. Heat dissipation holes; 5. Dustproof component; 51. Dustproof net; 52. Fixing strap; 53. Velcro; 6. Mounting block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A two-axis stepper motor driver with good heat dissipation includes a driver body 1 for converting electrical pulses into angular displacements. The driver body 1 includes a shell 11, a COM mounting plate 12, a COM control board 13 and a DRV drive board 14. A mounting block 6 for installation is fixedly connected to one side of the shell 11. A COM mounting plate 12 is provided on one side of the shell 11. A COM control board 13 and a DRV drive board 14 are installed on one side of the COM mounting plate 12. A DRV auxiliary fixed heat dissipation plate 2 is provided on one side of the DRV drive board 14. A radiator 3 with an L-shaped cross-section is provided on one side of the shell 11. By providing a variety of heat dissipation structures on the driver body 1, effective heat dissipation in the driver body 1 is facilitated. By providing a dustproof component 5 at the heat dissipation hole 4, dust is not easily introduced into the interior of the driver body 1 during the heat dissipation process. At the same time, the dustproof net 51 can be disassembled and cleaned through the Velcro 53 after long-term use.

[0023] Threaded pillars are provided on the inner sides of both sides of the radiator 3, and two DRV drive boards 14 are fixed to the inner side of the shell 11 through the COM mounting plate 12 in a group, which simplifies the process installation method and the wiring structure of the product and realizes a one-to-many driving method; the six sides of the shell 11 connected to the radiator 3 are provided with protrusions for easy positioning, and heat dissipation holes 4 for ventilation are opened on both sides of the shell 11. The heat dissipation holes 4 are arranged in a long rectangular shape to increase the heat dissipation effect of the driver body 1; a dustproof component 5 is provided on one side of the heat dissipation hole 4, and the dustproof component 5 includes a dustproof net 51, a fixing belt 52 and a Velcro 53, which is convenient for dustproofing the heat dissipation hole 4; a frame-shaped, flexible fixing belt 52 is attached to one side of the shell 11, and a dustproof net 51 is fixedly connected to the inner side of the fixing belt 52. Velcro 53 is embedded in the fixing belt 52 and one side of the shell 11 to facilitate replacement of the dustproof net 51.

[0024] Working process: When using a two-axis stepper motor driver with good heat dissipation, first install the driver body 1 in a suitable position by using the mounting block 6 and bolts. The COM control board 13 includes: power interface, two EtherCAT interfaces, digital tube, USB communication interface; the DRV driver board 14 includes: motor winding interface, signal interface; the driver body 1 is powered on by the external power supply as a whole to put it in working state. A large amount of current passes through, causing the driver body 1 to generate a lot of heat as a whole. Part of the heat is dissipated through the radiator 3. At the same time, the outside air can enter the shell 11 through the heat dissipation holes 4 and circulate with the internal air. Through exchange, the heat dissipation effect is increased. Since a dust-proof net 51 for filtering dust is provided on the outside of the heat dissipation hole 4, it is not easy for external dust to reach the inside of the shell 11 through the heat dissipation hole 4. When the dust-proof net 51 needs to be cleaned after long-term use, the fixing belt 52 is directly torn off. After cleaning, the dust-proof net 51 is placed in its original position and fixed with Velcro 53. By setting a variety of heat dissipation structures on the driver body 1, effective heat dissipation in the driver body 1 is facilitated. By setting the dust-proof component 5 at the heat dissipation hole 4, dust is not easy to enter the interior of the driver body 1 during the heat dissipation process. At the same time, the dust-proof net 51 can be disassembled and cleaned through Velcro 53 after long-term use.

[0025] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-axis stepper motor driver with good heat dissipation, comprising a driver body (1) for converting electrical pulses into angular displacements, characterized in that: The driver body (1) comprises a housing (11), a COM mounting plate (12), a COM control plate (13) and a DRV drive plate (14); a mounting block (6) for mounting is fixedly connected to one side of the housing (11); a COM mounting plate (12) is provided on one side of the housing (11); a COM control plate (13) and a DRV drive plate (14) are mounted on one side of the COM mounting plate (12); a DRV auxiliary fixed heat sink (2) is provided on one side of the DRV drive plate (14); and a radiator (3) having an L-shaped cross section is provided on one side of the housing (11).

2. The dual-axis stepper motor driver with good heat dissipation according to claim 1, characterized in that: Threaded pillars are provided on the inner sides of both sides of the radiator (3), and two DRV drive plates (14) are fixed to the inner side of the housing (11) via a COM mounting plate (12) in a group.

3. The dual-axis stepper motor driver with good heat dissipation according to claim 1, characterized in that: The six sides of the housing (11) connected to the radiator (3) are all provided with protruding blocks for facilitating positioning. Both sides of the housing (11) are provided with heat dissipation holes (4) for ventilation, and the heat dissipation holes (4) are arranged in a long rectangular shape.

4. The dual-axis stepper motor driver with good heat dissipation according to claim 3, characterized in that: A dustproof component (5) is provided on one side of the heat dissipation hole (4), and the dustproof component (5) comprises a dustproof net (51), a fixing belt (52) and a Velcro (53).

5. The dual-axis stepper motor driver with good heat dissipation according to claim 1, characterized in that: A flexible fixing belt (52) is attached to one side of the housing (11) and is formed into a frame. A dust screen (51) is fixedly connected to the inner side of the fixing belt (52). Velcro (53) is embedded in one side of the fixing belt (52) and the housing (11).

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