Motor driver

Abstract

The utility model discloses a motor driver which comprises a stepping motor, the motor driver is installed on a tail end cover of the stepping motor, the motor driver is composed of a protective cover, a motor driver body and a fan heat dissipation mechanism, and the fan heat dissipation mechanism is installed on the motor driver body. A power output shaft of the stepping motor is connected with a power input shaft of the fan heat dissipation mechanism, and the protective cover covers the fan heat dissipation mechanism and is installed on the motor driver body. The motor driver is composed of the protective cover, the motor driver main body and the fan heat dissipation mechanism, the fan heat dissipation mechanism is driven by the stepping motor so as to dissipate heat of the motor driver main body, and the protective cover covers the fan heat dissipation mechanism so as to protect the fan heat dissipation mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive technical field, concretely is a kind of motor driver. BACKGROUND

[0002] Motor driver is a kind of key device for controlling and managing motor operation, accurately controls the speed, torque and direction of motor by receiving external control signal. It is usually composed of controller, power amplifier and sensor, and can realize the high efficiency energy consumption, low noise and stable running state of motor.

[0003] The existing motor driver is usually passively cooled by the heat dissipation fins fixed on its shell, and the cooling effect is limited. When the working environment temperature of the motor driver is high, the internal components of the motor driver are easily damaged. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of motor driver to solve the problems in prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of motor driver, including stepper motor, motor driver is installed on the tail end cover of stepper motor, motor driver is composed of protective cover, motor driver main body and fan heat dissipation mechanism, the fan heat dissipation mechanism is installed on motor driver main body, the power input shaft of stepper motor is connected with the power output shaft of fan heat dissipation mechanism, the protective cover covers fan heat dissipation mechanism and is installed on motor driver main body.

[0006] Preferably, the fan heat dissipation mechanism is composed of fan blade, fan blade mounting shaft, transmission shaft and bevel gear, the diameter of transmission shaft is greater than the diameter of fan blade mounting shaft, the fan blade mounting shaft is fixed to one end of transmission shaft, the bevel gear is fixed to the other end of transmission shaft, the fan blade is fixed on the end of fan blade mounting shaft away from transmission shaft, the tail of the power output shaft of stepper motor is provided with bevel gear groove matched with bevel gear, the fan blade mounting shaft is provided with pressure block, and the pressure block is fixed to motor driver main body by screw.

[0007] Preferably, one motor driver fixing jaw is fixed to one side of the tail end cover of stepper motor.

[0008] Preferably, motor driver locking mechanism is arranged in the middle of the other side of the tail end cover of stepper motor, limit plate is fixed on the side of motor driver main body, and locking hole matched with motor driver locking mechanism is formed in the limit plate.

[0009] Preferably, the motor driver locking mechanism is composed of a spring, a latch and a stabilizing rod, an assembly groove for assembling the spring, the latch and the stabilizing rod is formed on a tail end cover of the stepping motor, the latch and the stabilizing rod are in sliding connection, and the spring is sleeved on the stabilizing rod.

[0010] Compared with the prior art, the motor driver of the utility model is composed of a protective cover, a motor driver main body and a fan heat dissipation mechanism, the fan heat dissipation mechanism is driven by a stepping motor, and the motor driver main body is then heat dissipated, the protective cover covers the fan heat dissipation mechanism, thereby protecting the fan heat dissipation mechanism;

[0011] The fan heat dissipation mechanism can slide on the motor driver main body, and a recess for accommodating the bevel gear is formed on the motor driver main body, the above structure is favorable for avoiding the problem that the bevel gear protrudes from the motor driver main body and hinders the installation of the utility model, under the action of the pressing block, the bevel gear on the fan heat dissipation mechanism can be kept in the state of being inserted into the bevel gear groove;

[0012] One motor driver fixing claw is fixed at each end of one side of the tail end cover of the stepping motor, the motor driver fixing claw is used for the installation of the utility model, and the motor driver locking mechanism on the tail end cover of the stepping motor can lock the utility model.

[0013] The motor driver locking mechanism is composed of a spring, a latch and a stabilizing rod, and the latch is inserted into the locking hole of the utility model under the pushing of the spring when the motor driver locking mechanism works. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0015] Figure 1 It is the combined structure schematic view of the utility model and the stepping motor;

[0016] Figure 2 It is the structure schematic view of the utility model after removing the protective cover;

[0017] Figure 3 It is the structure schematic view of the tail end cover of the stepping motor;

[0018] Figure 4 It is the combined structure schematic view of the fan heat dissipation mechanism and the pressing block of the utility model;

[0019] Figure 5 It is the structure schematic view of the motor driver locking mechanism of the utility model.

[0020] In the figure: 1, stepper motor; 2, motor driver locking mechanism; 3, protective cover; 4, motor driver main body; 5, fan cooling mechanism; 6, pressure block; 7, limiting plate; 8, locking hole; 9, motor driver fixing jaw; 10, bevel gear groove; 11, fan blade; 12, fan blade mounting shaft; 13, transmission shaft; 14, bevel gear; 15, spring; 16, assembly groove; 17, lock tongue; 18, stabilizing rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. 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 claimed present application, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-5 In the embodiments of the present application, a motor driver includes a stepper motor 1, a motor driver is installed on the tail end cover of the stepper motor 1, the motor driver is composed of a protective cover 3, a motor driver main body 4 and a fan cooling mechanism 5, the fan cooling mechanism 5 is installed on the motor driver main body 4, the power output shaft of the stepper motor 1 is connected with the power input shaft of the fan cooling mechanism 5, the protective cover 3 covers the fan cooling mechanism 5 and is installed on the motor driver main body 4, the fan cooling mechanism 5 is composed of a fan blade 11, a fan blade mounting shaft 12, a transmission shaft 13 and a bevel gear 14, the diameter of the transmission shaft 13 is greater than the diameter of the fan blade mounting shaft 12, the fan blade mounting shaft 12 is fixed to one end of the transmission shaft 13, the bevel gear 14 is fixed to the other end of the transmission shaft 13, the fan blade 11 is fixed to one end of the fan blade mounting shaft 12 away from the transmission shaft 13, the tail part of the power output shaft of the stepper motor 1 is provided with a bevel gear groove 10 matched with the bevel gear 14, the pressure block 6 is sleeved on the fan blade mounting shaft 12, and the pressure block 6 is fixed to the motor driver main body 4 by a screw.

[0023] The tail end cover of the step motor 1 is fixed with a motor driver fixing claw 9 at both ends of one side, and a motor driver locking mechanism 2 is arranged at the middle of the other side of the tail end cover of the step motor 1, a limiting plate 7 is fixed on the side edge of the motor driver main body 4, the limiting plate 7 is provided with a locking hole 8 matched with the motor driver locking mechanism 2, the motor driver locking mechanism 2 is composed of a spring 15, a lock tongue 17 and a stabilizing rod 18, the tail end cover of the step motor 1 is provided with an assembly groove 16 for assembling the spring 15, the lock tongue 17 and the stabilizing rod 18, the lock tongue 17 is in sliding connection with the stabilizing rod 18, and the spring 15 is sleeved on the stabilizing rod 18.

[0024] The working principle of the utility model is: the motor driver of the utility model is composed of a protective cover 3, a motor driver main body 4 and a fan heat dissipation mechanism 5, the fan heat dissipation mechanism 5 is driven by the step motor 1, and then the motor driver main body 4 is heat dissipated, the protective cover 3 is covered on the fan heat dissipation mechanism 5, thereby the fan heat dissipation mechanism 5 is protected.

[0025] The fan heat dissipation mechanism 5 can slide on the motor driver main body 4, and the motor driver main body 4 is provided with a recess for accommodating the bevel gear 14, the above-mentioned structure is favorable to avoiding the problem that the bevel gear 14 protrudes from the motor driver main body 4 and hinders the installation of the utility model, under the action of the pressing block 6, the bevel gear 14 on the fan heat dissipation mechanism 5 can keep the state of being inserted into the bevel gear groove 10.

[0026] The tail end cover of the step motor 1 is fixed with a motor driver fixing claw 9 at both ends of one side, the motor driver fixing claw 9 is used for the installation of the utility model, and the motor driver locking mechanism 2 on the tail end cover of the step motor 1 can lock the utility model.

[0027] The motor driver locking mechanism 2 is composed of a spring 15, a lock tongue 17 and a stabilizing rod 18, when the motor driver locking mechanism 2 works, the lock tongue 17 is inserted into the locking hole 8 of the utility model under the pushing of the spring 15.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A motor driver comprising a stepper motor (1), characterized in that: A motor driver is installed on the tail end cover of the stepper motor (1). The motor driver consists of a protective cover (3), a motor driver body (4), and a fan cooling mechanism (5). The fan cooling mechanism (5) is installed on the motor driver body (4). The power output shaft of the stepper motor (1) is connected to the power input shaft of the fan cooling mechanism (5). The protective cover (3) covers the fan cooling mechanism (5) and is installed on the motor driver body (4).

2. The motor driver according to claim 1, characterized in that: The fan cooling mechanism (5) consists of a fan blade (11), a fan blade mounting shaft (12), a transmission shaft (13), and a bevel gear (14). The diameter of the transmission shaft (13) is larger than the diameter of the fan blade mounting shaft (12). The fan blade mounting shaft (12) is fixed to one end of the transmission shaft (13), and the bevel gear (14) is fixed to the other end of the transmission shaft (13). The fan blade (11) is fixed to the end of the fan blade mounting shaft (12) away from the transmission shaft (13). The tail of the power output shaft of the stepper motor (1) is provided with a bevel gear groove (10) that cooperates with the bevel gear (14). A pressing block (6) is sleeved on the fan blade mounting shaft (12), and the pressing block (6) is fixed to the motor driver body (4) by screws.

3. A motor driver according to claim 1, characterized in that: A motor driver fixing claw (9) is fixed at each end of one side of the tail end cover of the stepper motor (1).

4. A motor driver according to claim 3, characterized in that: A motor driver locking mechanism (2) is provided in the middle of the other side of the tail end cover of the stepper motor (1). A limit plate (7) is fixed on the side of the motor driver body (4). A locking hole (8) that cooperates with the motor driver locking mechanism (2) is provided on the limit plate (7).

5. A motor driver according to claim 4, characterized in that: The motor driver locking mechanism (2) consists of a spring (15), a locking tongue (17), and a stabilizing rod (18). The tail end cover of the stepper motor (1) has an assembly groove (16) for assembling the spring (15), the locking tongue (17), and the stabilizing rod (18). The locking tongue (17) and the stabilizing rod (18) are slidably connected, and the spring (15) is sleeved on the stabilizing rod (18).

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