Heat dissipation structure of stepping motor driver applied to flat wire type motor

Abstract

The utility model relates to the technical field of flat wire stepping motors, in particular to a heat dissipation structure of a stepping motor driver applied to a flat wire motor, which comprises a shell body, a heat dissipation hole groove is arranged on the front end face of the shell body, a heat dissipation base is arranged at the bottom of the shell body, the heat dissipation base comprises a support bottom plate, and a heat dissipation hole groove is arranged on the support bottom plate. According to the heat dissipation structure of the stepping motor driver applied to the flat wire type motor, through the arrangement of the heat dissipation base, the liquid cooling device, the insulation heat dissipation pad, the heat dissipation hole grooves, the heat dissipation fins and the shell, when the heat dissipation structure of the stepping motor driver applied to the flat wire type motor is used, the heat dissipation efficiency is improved, and the heat dissipation efficiency is improved. When the flat stepping motor is controlled in cooperation with the stepping motor driver, a multi-stage heat dissipation structure composed of the heat dissipation base, the liquid cooling device, the insulation heat dissipation pad, the heat dissipation hole grooves, the heat dissipation fins and the shell is used for supporting the stepping motor driver to work for a long time at a high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-wire stepping motors, in particular to a heat dissipation structure of a stepping motor driver applied to a flat-wire motor. Background Art

[0002] Generally, stepper motors are divided into two types: round and flat. Flat stepper motors are more suitable for high-speed and high-precision applications. At the same time, when a flat stepper motor is working, the stepper motor driver is an actuator that converts electrical pulses into angular displacement. When the stepper motor driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle in the set direction. Its rotation runs step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, thereby achieving the purpose of accurate positioning.

[0003] In the prior art, a flat-wire stepper motor is used to provide power. When used in production, the flat-wire motor has a large current and the power device generates a large amount of heat. Therefore, the existing driver has a poor heat dissipation effect. The large amount of heat generated during use cannot be dissipated, which will cause damage to the internal components of the driver, shorten the service life of the driver, and fail to meet the needs of users. Therefore, in order to solve the above problems, a heat dissipation structure of a stepper motor driver for a flat-wire motor is proposed. Utility Model Content

[0004] The purpose of the present invention is to provide a heat dissipation structure for a stepper motor driver of a flat wire motor, so as to solve the problem in the prior art that the existing flat wire motor generates a large amount of heat which cannot be dissipated due to the large current.

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

[0006] A heat dissipation structure for a stepper motor driver for a flat linear motor includes a shell body, a front end surface of the shell body having a heat dissipation hole groove, a bottom portion of the shell body having a heat dissipation base, the heat dissipation base including a support base plate, a liquid cooling device fixedly installed above the support base plate, the liquid cooling device including a heat dissipation plate and a heat dissipation copper tube, the heat dissipation copper tube being divided into a horizontal bend portion and a vertical bend portion.

[0007] Preferably, the front end of the heat dissipation hole groove is covered with a filter screen plate, and the outside of the filter screen plate is snap-connected with a limiting support frame fixedly connected to the shell body.

[0008] Preferably, an insulating heat dissipation pad is provided directly above a portion of the horizontally bent heat dissipation copper tube, and a PCB board is provided directly above the insulating heat dissipation pad.

[0009] Preferably, the outer shape of the support base plate is a stepped structure, and the front and rear end surfaces of the support base plate are provided with a circular hole groove structure that is detachably connected to the shell body by bolts, the left side of the support base plate is fixedly connected to a side buckle plate, and the bottom of the support base plate is fixedly connected to a heat sink, and several of the heat sinks form a serrated structure.

[0010] Preferably, there are 44 heat sinks in total, and the heat sinks are of a curved structure. A portion of the vertical bend of the heat sink copper tube passes through a plurality of the heat sinks.

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

[0012] In the utility model, the heat dissipation base, liquid cooling device, insulating heat dissipation pad, heat dissipation hole slot, heat sink and shell are provided, which will facilitate the heat dissipation structure of the stepper motor driver applied to the flat linear motor when in use. When the stepper motor driver is used to control the flat stepper motor, the multi-stage heat dissipation structure composed of the heat dissipation base, liquid cooling device, insulating heat dissipation pad, heat dissipation hole slot, heat sink and shell is used to support the stepper motor driver to work for a long time at a higher temperature, thereby reducing component damage caused by high temperature and extending the service life of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the filter screen plate of the utility model.

[0016] In the figure: 1. Shell body; 11. Heat dissipation hole slot; 2. PCB board; 3. Insulation heat dissipation pad; 4. Liquid cooling device; 41. Heat dissipation plate; 42. Heat dissipation copper tube; 5. Heat dissipation base; 51. Support base; 52. Heat sink; 53. Side buckle plate; 6. Filter screen; 7. Limiting frame. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A heat dissipation structure for a stepper motor driver for a flat linear motor includes a housing body 1. A heat dissipation hole slot 11 is provided on the front end surface of the housing body 1. A heat dissipation base 5 is provided at the bottom of the housing body 1. The heat dissipation base 5 includes a supporting base plate 51. A liquid cooling device 4 is fixedly installed above the supporting base plate 51. The liquid cooling device 4 includes a heat dissipation plate 41 and a heat dissipation copper tube 42. The heat dissipation copper tube 42 is divided into a horizontal curved tube portion and a vertical curved tube portion.

[0020] like Figure 1 、 Figure 2 and Figure 3 As shown, the front end of the heat dissipation hole slot 11 is covered with a filter screen plate 6, and the outside of the filter screen plate 6 is connected with a limiting support frame 7 fixedly connected to the shell body 1. The outer surface of the shell body 1 is provided with a heat dissipation hole slot 11, which avoids the internal heat circulation generated inside, further improves the heat dissipation performance of the driver, and the installed filter screen plate 6 can also filter dust for protection; an insulating heat dissipation pad 3 is provided just above a part of the horizontal bend of the heat dissipation copper tube 42, and a PCB board 2 is provided just above the insulating heat dissipation pad 3. The insulating heat dissipation pad 3 is installed between the heat dissipation copper tube 42 and the PCB board 2, which ensures good insulation while increasing the heat dissipation performance; the outer shape of the support base plate 51 is a stepped structure, The front and rear end surfaces of the support base plate 51 are provided with a circular hole groove structure that is detachably connected to the shell body 1 with bolts. The left side of the support base plate 51 is fixedly connected to a side buckle plate 53, and the bottom of the support base plate 51 is fixedly connected to a heat sink 52. Several heat sinks 52 form a serrated structure. The heat sinks 52 below the support base plate 51 are irregularly serrated, which effectively increases the heat dissipation area and improves the heat dissipation performance. There are 44 heat sinks 41 in total, and the heat sink 41 has a curved structure. A vertical bend of the heat dissipation copper tube 42 passes through multiple heat dissipation plates 41. The heat dissipation copper tube 42 is pre-filled with coolant, which will help the driver operator to perform auxiliary cooling through liquid cooling.

[0021] Working process: The electric energy required for the start-up and operation of the driving device in the present invention all comes from an external power supply, and before using the flat stepper motor, the PCB board 2 can be connected to the control terminal of the motor control junction box to connect the entire walking motor driver to the control system of the flat stepper motor. When the production line uses the flat stepper motor to provide driving force for production and processing operations, when the power is on, the stepper motor driver will control the rotation of the motor by receiving the pulse signal, so that the flat stepper motor can operate stably. When the stepper motor driver generates high temperature and generates a lot of heat during use, a heat dissipation base 5 is provided under the heat dissipation base 5. Some multiple heat sinks 52 will use their own serrated arrangement to conduct heat outward, and at the same time, the heat dissipation copper tube 42 is pre-filled with coolant. The injection of coolant allows the stepper motor driver to have a liquid cooling effect during operation through the setting of the liquid cooling device 4, further increasing the heat dissipation performance of the driver. Under the screening and isolation protection of the filter plate 6, the heat dissipation hole groove 11 is opened on the outer end surface of the shell body 1, which can also facilitate heat exchange between the external environment and the inside of the driver, achieving auxiliary ventilation and heat dissipation, and facilitating the entire driver to operate for a long time in a high temperature environment.

[0022] 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 heat dissipation structure for a stepper motor driver for a flat linear motor, comprising a housing body (1), characterized in that: A heat dissipation hole groove (11) is provided on the front face of the shell body (1), a heat dissipation base (5) is provided at the bottom position of the shell body (1), the heat dissipation base (5) includes a supporting base plate (51), a liquid cooling device (4) is fixedly installed above the supporting base plate (51), the liquid cooling device (4) includes a heat dissipation plate (41) and a heat dissipation copper tube (42), and the heat dissipation copper tube (42) is divided into a horizontal bend part and a vertical bend part.

2. The heat dissipation structure of a stepper motor driver for a flat linear motor according to claim 1, characterized in that: The front end of the heat dissipation hole slot (11) is covered with a filter screen plate (6), and the outside of the filter screen plate (6) is snap-connected to a limiting support frame (7) fixedly connected to the shell body (1).

3. The heat dissipation structure of a stepper motor driver for a flat linear motor according to claim 1, characterized in that: An insulating heat dissipation pad (3) is provided directly above a portion of the horizontally bent heat dissipation copper tube (42), and a PCB board (2) is provided directly above the insulating heat dissipation pad (3).

4. The heat dissipation structure of a stepper motor driver for a flat linear motor according to claim 1, characterized in that: The support base plate (51) has a stepped structure. The front and rear end surfaces of the support base plate (51) are provided with circular hole groove structures that are detachably connected to the shell body (1) by bolts. The left side of the support base plate (51) is fixedly connected to a side buckle plate (53). The bottom of the support base plate (51) is fixedly connected to a heat sink (52). A plurality of the heat sinks (52) form a sawtooth structure.

5. The heat dissipation structure of a stepper motor driver for a flat linear motor according to claim 1, characterized in that: There are 44 heat dissipation plates (41) in total. The heat dissipation plates (41) have a curved structure. A portion of the vertical bend of the heat dissipation copper tube (42) passes through a plurality of the heat dissipation plates (41).

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