Waterproof integrated stepping motor

Abstract

The utility model discloses a waterproof integrated stepping motor which comprises a stepping motor body, an encoder, a rear end cover, a PCB adapter plate, a driver, a driving cover, an aviation socket, an aviation plug cover and a waterproof electric connector, the rear end of the stepping motor body is connected with the rear end cover, one end of the encoder is connected with an output shaft of the motor body, and the other end of the encoder is connected with the PCB adapter plate. The other end of the encoder is installed in the rear end cover, the rear end of the rear end cover is provided with the driving cover, the upper end of the rear end cover is provided with the navigation socket, the upper end of the navigation socket is provided with the navigation socket cover, the rear end of the navigation socket is provided with the waterproof electric connector, and the PCB adapter plate and the driver are installed in the rear end cover and the driving cover. The rear end of the driving cover is provided with a plurality of horizontal heat dissipation grooves and vertical heat dissipation grooves, and heat dissipation nails are formed between the horizontal heat dissipation grooves and the vertical heat dissipation grooves, the internal electrical wiring cable is shortened, the electromagnetic compatibility and the heat dissipation performance are improved, and the wiring convenience of the motor is also improved.

Description

Technical Field

[0001] The utility model relates to a motor, in particular to a waterproof integrated stepping motor. Background Art

[0002] A stepper motor is an electric motor that converts electrical pulse signals into corresponding angular displacement or linear displacement. Each time a pulse signal is input, the rotor rotates an angle or moves forward one step. The output angular displacement or linear displacement is proportional to the number of input pulses, and the speed is proportional to the pulse frequency.

[0003] The stepper motor, also known as the pulse motor, is based on the most basic electromagnet principle. It is a freely rotating electromagnet, and its operating principle is to generate electromagnetic torque by relying on the change of air gap magnetic permeability. The biggest difference between the stepper motor and other control motors is that it receives digital control signals (electric pulse signals) and converts them into corresponding angular displacements or linear displacements. It is itself an actuator that completes digital mode conversion. Moreover, it can be open-loop position controlled. A pulse signal is input to obtain a specified position increment. Compared with the traditional DC control system, the cost of such an incremental position control system is significantly reduced, and there is almost no need for system adjustment.

[0004] The angular displacement of the stepper motor is strictly proportional to the number of input pulses and is synchronized with the pulses in time. Therefore, the required rotation angle, speed and direction can be obtained by controlling the number of pulses, frequency and phase sequence of the motor windings.

[0005] At present, the stepper motors on the market are still dominated by conventional stepper motors. Encoders will be added to improve the closed-loop control capability, and the driver and controller will be simply fixed to the tail of the motor and sold as an integrated product.

[0006] Therefore, when customers need a complete stepper motor solution, they must be very familiar with the entire set of mechanical fixation and electrical connections of stepper motors, encoders, drivers, and controllers. This not only requires the processing of customized mechanical parts, but also the processing of the connection and mechanical assembly process of more than 20 single-strand wires, which affects the neat appearance and causes electromagnetic compatibility problems due to long cables and lack of shielding. The lack of demand for high outdoor protection levels has also affected the selection intention of some customers. There is still a need for an integrated stepper motor with strong waterproof and dustproof performance on the market. The external cables of integrated stepper motors on the market are split into independent cables such as power, I / O, and communication, resulting in the problem that the external electrical wiring is still too complicated. Utility Model Content

[0007] The utility model discloses a waterproof integrated stepping motor, which solves some problems existing in the existing stepping motors.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] The utility model discloses a waterproof integrated stepper motor, comprising a stepper motor body, an encoder, a rear end cover, a PCB adapter board, a driver, a drive cover, an aviation socket, an aviation plug cover and a waterproof electric connector. The rear end of the stepper motor body is connected to the rear end cover, one end of the encoder is connected to the output shaft of the motor body, the other end of the encoder is installed in the rear end cover, the drive cover is installed at the rear end of the rear end cover, the aviation socket is installed at the upper end of the rear end cover, the aviation plug cover is installed at the upper end of the aviation socket, the waterproof electric connector is installed at the rear end of the aviation socket, the PCB adapter board and the driver are installed in the rear end cover and the drive cover, and a plurality of horizontal heat dissipation grooves and vertical heat dissipation grooves are provided at the rear end of the drive cover, and heat dissipation pins are formed between the horizontal heat dissipation grooves and the vertical heat dissipation grooves.

[0010] Furthermore, the stepper motor body also includes a front end cover and a shell, the output shaft passes through the front end cover, a through hole is opened at the front end of the rear end cover, and the output shaft is coaxial with the through hole.

[0011] Furthermore, the magnetic head of the encoder is installed at the rear end of the output shaft.

[0012] Furthermore, a sealing groove 1 is provided at the front end of the rear end cover, a sealing groove 2 is provided at the rear end of the rear end cover, a first sealing ring is provided in the sealing groove 1, a second sealing ring is provided in the sealing groove 2, and the rear end cover is connected to the motor body and the drive cover by screws.

[0013] Furthermore, the motor power line, encoder line, and electrical connector line are all connected to the front end surface of the PCB adapter board through wire-to-board terminals.

[0014] Furthermore, a composite cable integrating power supply, I / O and communication is plugged into the rear end surface of the PCB adapter board through a board-to-board terminal pair.

[0015] Further, the driver is of PCB type, and the driver and the driver cover are connected by screws;

[0016] The rear end cover is a hollow structure, and the motor power line and encoder line are connected to the driver through through holes.

[0017] Furthermore, the four corners of the drive cover are provided with inclined surfaces, and the four corners of the drive cover are provided with mounting holes, the mounting holes are located on the outside of the horizontal heat dissipation grooves and the vertical heat dissipation grooves, and there are 11 horizontal heat dissipation grooves and 11 vertical heat dissipation grooves.

[0018] Furthermore, the aviation socket is provided with a tail mounting hole one and a tail mounting hole two, the solder cup lead of the waterproof electric connector is connected to the PCB adapter board through the tail mounting hole two of the aviation socket, and the waterproof electric connector is connected to the tail mounting hole one of the aviation socket by screws.

[0019] The beneficial effects of the utility model are:

[0020] The utility model reduces space cost while ensuring the dustproof and waterproof performance of the motor, is easy to disassemble and assemble, can greatly simplify the wiring process, improve the economy and convenience of maintenance, simplify the production and maintenance process, improve the heat dissipation effect, and greatly increase the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0023] Figure 2 It is a schematic diagram of an explosion of an embodiment of the utility model.

[0024] Figure 3 This is a schematic diagram of electrical connections of an embodiment of the utility model.

[0025] Figure 4 This is a schematic diagram of a stepper motor body according to an embodiment of the utility model.

[0026] Figure 5 It is a schematic diagram of the rear end cover of an embodiment of the utility model.

[0027] Figure 6 This is a schematic diagram of a driving cover according to an embodiment of the utility model.

[0028] Figure 7 This is a schematic diagram of an aviation socket according to an embodiment of the utility model. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0030] As shown in the figure, the utility model discloses a waterproof integrated stepper motor, including a stepper motor body 1, an encoder 2, a rear end cover 4, a PCB adapter board 5, a driver 7, a drive cover 8, an aviation socket 9, an aviation plug cover 10 and a waterproof electrical connector 11. The rear end of the stepper motor body 1 is connected to the rear end cover 4, one end of the encoder 2 is connected to the output shaft 101 of the motor body 1, and the other end of the encoder 2 is installed in the rear end cover 4. The drive cover 8 is installed at the rear end of the rear end cover 4, the aviation socket 9 is installed on the upper end of the rear end cover 4, the aviation plug cover 10 is installed on the upper end of the aviation socket 9, and the waterproof electrical connector 11 is installed at the rear end of the aviation socket 9. Figure 3 The electrical connector is a waterproof electrical connector 11, the motor is a stepper motor body 1, the rear end cover 4 and the drive cover 8 are provided with a PCB adapter board 5 and a driver 7, the rear end of the drive cover 8 is provided with a plurality of horizontal heat dissipation slots 801 and vertical heat dissipation slots 802, and heat dissipation pins 803 are formed between the horizontal heat dissipation slots 801 and the vertical heat dissipation slots 802. The aviation plug cover 10 is used for waterproof and dustproof protection of the aviation socket 9. The heat dissipation surface formed by the slot helps to conduct the heat of the driver to the outside, and the design of the horizontal heat dissipation slots 801 and the vertical heat dissipation slots 802 utilizes air convection for heat dissipation.

[0031] Structurally, the stepper motor body 1, the encoder 2, and the driver 7 are connected into a whole through the rear end cover 4 and the drive cover 8.

[0032] In one embodiment of the utility model, the stepper motor body 1 further includes a front end cover 102 and a housing 103, the output shaft 101 passes through the front end cover 102, the front end of the rear end cover 4 is provided with a through hole 401, and the output shaft 101 is coaxial with the through hole 401. The output shaft 101 is used to output the rotation speed and torque. The front end cover 102 of the stepper motor body 1 and the housing 103 are sealed with a sealing ring and a sealant, which effectively improves the dustproof and waterproof performance of the stepper motor body 1.

[0033] The PCB adapter board 5 is used to connect the motor power line, encoder line, waterproof electrical connector line and the wiring harness of the driver 7.

[0034] In an embodiment of the present invention, the magnetic head 201 of the encoder 2 is installed at the rear end of the output shaft 101 .

[0035] In one embodiment of the utility model, a sealing groove 1 403 is provided at the front end of the rear end cover 4, a sealing groove 2 is provided at the rear end of the rear end cover, a first sealing ring 3 is provided in the sealing groove 1 403, a second sealing ring 6 is provided in the sealing groove 2, and the rear end cover 4 is connected to the motor body 1 and the drive cover 8 by screws. After the stepper motor body 1 and the rear end cover 4 are fastened by screws, the first sealing ring 3 is pressed tightly, which plays a role in sealing the connection surface between the stepper motor body 1 and the rear end cover 4. After the drive cover 8 and the rear end cover 4 are fastened by screws, the second sealing ring 6 is pressed tightly, which plays a role in sealing the connection surface between the drive cover 8 and the rear end cover 4.

[0036] After the mechanical assembly of the internal cavity of the aviation socket 9 is completed, the cavity is filled with glue to meet the waterproof requirements; the waterproof electrical connector 11 adopts a product with IP67 protection level, and a waterproof cover accessory is added to the waterproof electrical connector 11 to prevent the waterproof failure problem caused by improper external wiring.

[0037] In an embodiment of the present invention, the motor power line, the encoder line, and the electrical connector line are all connected to the front end surface of the PCB adapter board 5 through wire-to-board terminals.

[0038] In one embodiment of the utility model, a composite cable integrating power supply, I / O and communication is plugged into the rear end surface of the PCB adapter board 5 through a board-to-board terminal pair. The composite cable can simultaneously access power supply, I / O and communication without separate wiring. The composite cable saves cable cost and greatly reduces the size cost and wiring cost of the user's on-site electric control cabinet.

[0039] In one embodiment of the utility model, the driver is of PCB type, and the driver is connected to the driving cover by screws;

[0040] The rear end cover 4 is a hollow structure, and the motor power line and the encoder line are connected to the driver 7 through the through hole 401.

[0041] In one embodiment of the utility model, the four corners of the driving cover 8 are provided with inclined surfaces, and the four corners of the driving cover 8 are provided with mounting holes 804, which are located on the outside of the horizontal heat dissipation groove 801 and the vertical heat dissipation groove 802, and there are 11 horizontal heat dissipation grooves 801 and 11 vertical heat dissipation grooves 802.

[0042] The heat generated by the motor body can be dissipated through conduction through the contact between the housing 103 itself and the outside air. The motor housing 103 is made of aluminum alloy.

[0043] The drive cover 8 is made of aluminum alloy, which can further enhance the heat transfer and heat dissipation effects of the integrated servo motor.

[0044] In one embodiment of the utility model, the aviation socket 9 is provided with a tail mounting hole 1 901 and a tail mounting hole 2 902, and the rear end cover 4 is provided with a coaxial hole 402, the coaxial hole 402 is coaxial with the tail mounting hole 2 902, the solder cup lead of the waterproof electrical connector 11 is connected to the PCB adapter board through the tail mounting hole 2 of the aviation socket, and the waterproof electrical connector 11 is connected to the tail mounting hole 1 901 of the aviation socket by screws.

[0045] The space between the rear end cover 4 and the drive cover 8 is used to place the PCB adapter board 5 and the driver 7. The wiring harness is transferred to the PCB adapter board 5, and the board-to-board terminals on the PCB adapter board 5 are directly plugged into the terminals of the driver 7, which saves a lot of wiring costs and internal wiring space, and also improves the electromagnetic compatibility of the integrated stepper motor.

[0046] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A waterproof integrated stepping motor, characterized in that: It includes a stepper motor body, an encoder, a rear end cover, a PCB adapter board, a driver, a drive cover, an aviation socket, an aviation plug cover and a waterproof electric connector. The rear end of the stepper motor body is connected to the rear end cover, one end of the encoder is connected to the output shaft of the motor body, and the other end of the encoder is installed in the rear end cover. The drive cover is installed at the rear end of the rear end cover, the aviation socket is installed at the upper end of the rear end cover, the aviation plug cover is installed at the upper end of the aviation socket, and the waterproof electric connector is installed at the rear end of the aviation socket. The PCB adapter board and the driver are installed in the rear end cover and the drive cover, and a plurality of horizontal heat dissipation grooves and vertical heat dissipation grooves are provided at the rear end of the drive cover, and heat dissipation pins are formed between the horizontal heat dissipation grooves and the vertical heat dissipation grooves.

2. A waterproof integrated stepping motor according to claim 1, characterized in that: The stepper motor body also includes a front end cover and a shell. The output shaft passes through the front end cover. A through hole is opened at the front end of the rear end cover. The output shaft is coaxial with the through hole.

3. A waterproof integrated stepping motor according to claim 2, characterized in that: The encoder's magnetic head is mounted on the rear end of the output shaft.

4. A waterproof integrated stepping motor according to claim 2, characterized in that: The front end of the rear end cover is provided with a sealing groove 1, the rear end of the rear end cover is provided with a sealing groove 2, a first sealing ring is arranged in the sealing groove 1, a second sealing ring is arranged in the sealing groove 2, and the rear end cover is connected to the motor body and the drive cover by screws.

5. A waterproof integrated stepping motor according to claim 4, characterized in that: The motor power line, encoder line, and electrical connector line are all connected to the front end surface of the PCB adapter board through wire-to-board terminals.

6. A waterproof integrated stepping motor according to claim 5, characterized in that: The composite cable integrating power, I / O and communication is plugged into the rear end surface of the PCB adapter board through the board-to-board terminal pair.

7. A waterproof integrated stepping motor according to claim 6, characterized in that: The driver is PCB type, and the driver and the driver cover are connected by screws; The rear end cover is a hollow structure, and the motor power line and encoder line are connected to the driver through through holes.

8. The waterproof integrated stepping motor according to claim 1, characterized in that: The four corners of the drive cover are provided with inclined surfaces, and the four corners of the drive cover are provided with mounting holes, and the mounting holes are located on the outsides of the horizontal heat dissipation grooves and the vertical heat dissipation grooves, and there are 11 horizontal heat dissipation grooves and 11 vertical heat dissipation grooves.

9. A waterproof integrated stepping motor according to claim 1, characterized in that: The aviation socket is provided with a tail mounting hole 1 and a tail mounting hole 2. The solder cup lead of the waterproof electric connector is connected to the PCB adapter board through the tail mounting hole 2 of the aviation socket. The waterproof electric connector is connected to the tail mounting hole 1 of the aviation socket by screws.

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