Driving and control integrated servo motor

Abstract

The utility model belongs to the technical field of motors, and particularly relates to a drive and control integrated servo motor, which comprises a motor body, a motor shaft arranged in the motor body, a mounting part formed at the rear end of the motor body, a casting part arranged in the mounting part, and a circuit board arranged in the casting part. The side wall of the motor body is provided with an air outlet channel and an air inlet channel, a heat dissipation cavity is formed between the casting part and the motor body, the air outlet channel is communicated with the air inlet channel through the heat dissipation cavity, a heat dissipation fan is arranged in the heat dissipation cavity, and the heat dissipation fan is installed on the periphery of a motor shaft and used for heat dissipation and cooling of a circuit board and the motor body. In the actual use process, flowing of air in the heat dissipation cavity can be accelerated, meanwhile, heat dissipation is conducted on the motor and the circuit board, the fan extracts external cold air to enter the heat dissipation cavity, heat generated when the motor and the circuit board work is taken away, the situation that the working performance of the motor is affected due to heat accumulation in the motor is effectively prevented, and the service life of the motor is prolonged. Therefore, the motor can work normally for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly refers to an integrated drive and control servo motor. Background Art

[0002] During the operation of a servo motor, the servo motor itself generates working heat. Since the internal structure of the servo motor is more complex than that of an ordinary motor, when heat accumulates inside the servo motor, it will affect the working performance of its internal control components. Therefore, the servo motor needs to have good heat dissipation performance. Generally, traditional servo motors only use the methods of external strip fins on the shell and exposed magnet sheets for passive heat dissipation. Since the hollow position is small or the housing is closed during the installation of the servo motor, only using passive heat dissipation will result in poor heat dissipation effect. Conventional motors and drivers are installed separately, requiring two installation spaces and multiple motor and controller connection wires to achieve power supply operation and encoder communication, so more heat dissipation devices are needed to dissipate heat for the motor and the driver, which will increase the cost of the product. Therefore, this structure needs to be further improved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an integrated drive and control servo motor. By setting a cooling fan, the problem of poor heat dissipation effect of the motor and the controller is solved. The cooperation of the fan and the air duct is used to achieve simultaneous heat dissipation of the motor and the control, and the performance and cost performance are greatly improved.

[0004] The purpose of the utility model is realized as follows: An integrated drive and control servo motor includes a motor body. A motor shaft is arranged inside the motor body. An installation part is formed at the rear end of the motor body. A casting is installed inside the installation part. A circuit board is arranged inside the casting. An air outlet channel and an air inlet channel are respectively arranged on the side wall of the motor body. A heat dissipation cavity is formed between the casting and the motor body. The air outlet channel is connected to the air inlet channel through the heat dissipation cavity. A cooling fan is arranged inside the heat dissipation cavity. The cooling fan is installed on the outer periphery of the motor shaft for heat dissipation and temperature reduction of the circuit board and the motor body.

[0005] Preferably, a partition is arranged inside the heat dissipation cavity. The partition is located between the air inlet channel and the cooling fan. A diversion part is formed on the inner periphery of the partition.

[0006] Preferably, a magnet is installed at the rear end of the motor shaft. An encoder that cooperates with the magnet is installed on the side of the casting.

[0007] Preferably, a cover plate is installed at the rear end of the casting. An installation cavity is formed between the cover plate and the casting. A circuit board is arranged inside the installation cavity.

[0008] Preferably, air inlets are formed on the outer periphery of the cover plate.

[0009] Preferably, a number of first heat dissipation fins are formed on the outer periphery of the casting, and a number of heat dissipation aluminum sheets are formed on the inner side of the casting. A heat dissipation channel is formed between two adjacent heat dissipation aluminum sheets.

[0010] Preferably, a number of air outlets are formed between the mounting part and the motor body. An air inlet is formed on the mounting part, and a number of second heat dissipation fins are formed on the outer peripheries of the mounting part and the motor body.

[0011] Preferably, a junction box is installed on the upper end face of the mounting part or the casting. A wire passing hole one and a wire passing hole two are respectively formed on the lower end face of the junction box.

[0012] Preferably, a nameplate is installed on the side of the motor body, and both ends of the nameplate are respectively arranged on the end faces of the air outlet channel and the air inlet channel.

[0013] Preferably, the casting and the motor body are connected by fasteners.

[0014] The prominent and beneficial technical effects of the present utility model compared with the prior art are as follows:

[0015] Through the design of the heat dissipation fan, during the actual use process, the present utility model can accelerate the air flow in the heat dissipation cavity, and at the same time dissipate heat from the motor and the circuit board. When the fan works, it extracts the external cold air from the air inlet channel into the heat dissipation cavity, takes away the heat generated when the motor and the circuit board work, and then quickly dissipates it through the air outlet channel, effectively preventing the heat accumulation inside the motor from affecting its working performance, so that the motor can maintain normal operation for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the present utility model Figure 1 .

[0017] Figure 2 is a schematic three-dimensional structure diagram of the present utility model Figure 2 .

[0018] Figure 3 is a schematic side view structure diagram of the present utility model.

[0019] Figure 4 is Figure 3 a schematic cross-sectional structure diagram at A-A in

[0020] Figure 5 is a schematic top view structure diagram of the present utility model Figure 1 .

[0021] Figure 6 is Figure 5 a schematic cross-sectional structure diagram at B-B in

[0022] Figure 7 Structural schematic of a casting Figure 1 。

[0023] Figure 8 Exploded structural schematic of the parts of the present utility model Figure 1 。

[0024] Figure 9 Structural schematic diagram of the motor body and the partition member

[0025] Figure 10 Three-dimensional structural schematic of the present utility model Figure 3 。

[0026] Figure 11 Three-dimensional structural schematic of the present utility model Figure 4 。

[0027] Figure 12 Top view structural schematic of the present utility model Figure 2 。

[0028] Figure 13 For Figure 3 Structural sectional view at C-C in

[0029] Figure 14 Exploded structural schematic of the parts of the present utility model Figure 2 。

[0030] Figure 15 Structural schematic of the motor body Figure 2 。

[0031] Figure 16 Structural schematic of a casting Figure 2 。

[0032] Reference numerals: 1 - motor body; 2 - motor shaft; 3 - magnet; 4 - mounting part; 5 - casting; 6 - circuit board; 7 - encoder; 8 - air inlet channel; 9 - air outlet channel; 10 - heat dissipation cavity; 11 - heat dissipation fan; 13 - cover plate; 14 - mounting cavity; 15 - air inlet; 16 - first heat dissipation fin; 17 - heat dissipation aluminum sheet;

[0033] 18 - heat dissipation channel; 19 - air outlet; 20 - second heat dissipation fin; 21 - junction box; 22 - partition member;

[0034] 23 - drainage part; 24 - wire passing hole one; 25 - wire passing hole two; 26 - nameplate. Detailed description of the specific implementation mode

[0035] The following further details the specific implementation mode of the present utility model in conjunction with the accompanying drawings.

[0036] Such as Figure 1-16As shown in the figure, a servo motor with integrated drive and control includes a motor body 1. A motor shaft 2 is arranged inside the motor body 1. A magnet 3 is installed at the rear end of the motor shaft 2. An installation part 4 is formed at the rear end of the motor body 1. A casting 5 is installed inside the installation part 4. A circuit board 6 is arranged inside the casting 5. An encoder 7 that cooperates with the magnet 3 is installed on the side of the casting 5, thereby realizing high-precision control of the servo motor and having a wider range of application scenarios. An air outlet channel 9 is arranged between the casting 5 and the installation part 4. An air outlet channel 9 and an air inlet channel 8 are respectively arranged on the side wall of the motor body 1. The air outlet channel 9 is communicated with the air inlet channel 8 through a heat dissipation cavity 10. A heat dissipation cavity 10 is formed between the casting 5 and the installation part 4. A heat dissipation fan 11 is arranged inside the heat dissipation cavity 10. The heat dissipation fan 11 is installed on the outer periphery of the motor shaft 2 for dissipating heat of the circuit board 6 and the motor body 1.

[0037] Through the design of the heat dissipation fan 11 in the present utility model, during actual use, it can accelerate the air flow inside the heat dissipation cavity 10 and dissipate heat from the motor and the circuit board at the same time. When the fan works, it extracts cold air from the outside and enters the heat dissipation cavity 10 through the air inlet channel 8, takes away the heat generated when the motor and the circuit board work, and then quickly dissipates it through the air outlet channel 9, effectively preventing heat accumulation inside the motor from affecting its working performance, so that the motor can maintain normal operation for a long time.

[0038] A cover plate 13 is installed at the rear end of the casting 5. An installation cavity 14 is formed between the cover plate 13 and the casting 5. A circuit board 6 is arranged inside the installation cavity 14.

[0039] An air inlet 15 is formed on the outer periphery of the cover plate 13. The air outlet 15 is communicated with the air outlet channel 9, so that the heat inside the motor can be dissipated therefrom.

[0040] A plurality of first heat dissipation fins 16 are formed on the outer periphery of the casting 5. A plurality of heat dissipation aluminum sheets 17 are formed on the inner side of the casting 5. The heat dissipation effect is improved by enhancing the thermal conductivity. A heat dissipation channel 18 is formed between two adjacent heat dissipation aluminum sheets 17, so that the heat generated when the circuit board works can quickly flow to the outside along the guidance of the heat dissipation channel 18.

[0041] A plurality of air outlets 19 are formed between the installation part 4 and the motor body 1. An air inlet 15 is formed on the installation part 4. A plurality of second heat dissipation fins 20 are formed on the outer peripheries of the installation part 4 and the motor body 1, thereby improving the heat dissipation effect.

[0042] A barrier 22 is provided in the heat dissipation cavity 10, and the barrier 22 is located between the air inlet channel 8 and the heat dissipation fan 11. The inner periphery of the barrier 22 is formed with a guide portion 23, which can increase the heat dissipation effect. When the heat dissipation fan 11 is working, external wind will enter the air inlet channel 8 through the air inlet 15, first take away part of the heat on the heat dissipation aluminum sheet 17, and then pass through the fan 11 along the guide portion 23, while dissipating the heat to the motor, and then flow out to the air outlet channel 9 through the air outlet 19, thereby achieving an overall heat dissipation effect.

[0043] A junction box 21 is installed on the upper end surface of the mounting portion 4 or the casting 5, and a wire through hole 1 24 and a wire through hole 25 are respectively provided on the lower end surface of the junction box 21. The phase line of the motor can be connected to the junction box 21 through the wire through hole 1 24, and the control line of the circuit board can be connected to the junction box 21 through the wire through hole 25, so that multiple connecting wires can be hidden in the motor, making the overall appearance of the product more simple and beautiful.

[0044] A nameplate 26 is installed on the side of the motor body 1, and the two ends of the nameplate 26 are respectively arranged on the end faces of the air outlet channel 9 and the air inlet channel 8. In actual use, the nameplate 26 blocks the end faces of the air outlet channel 9 and the air inlet channel 8, which can play a decorative role and improve the quality of the product. It can also make the wind flow along the heat dissipation fins 20 on the air outlet channel 9. During the flow process, it can take away part of the heat on the heat dissipation fins 20, thereby improving the heat dissipation effect.

[0045] The casting 5 is connected to the motor body 1 by fasteners, which is convenient for assembly and disassembly and maintenance.

[0046] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A servo motor with integrated drive and control, characterized in that, It includes a motor body (1), a motor shaft (2) is arranged inside the motor body (1), an installation part (4) is formed at the rear end of the motor body (1), a casting (5) is installed inside the installation part (4), a circuit board (6) is arranged inside the casting (5), air outlet channels (9) and air inlet channels (8) are respectively arranged on the side wall of the motor body (1), a heat dissipation cavity (10) is formed between the casting (5) and the motor body (1), the air outlet channels (9) are communicated with the air inlet channels (8) through the heat dissipation cavity (10), a heat dissipation fan (11) is arranged inside the heat dissipation cavity (10), and the heat dissipation fan (11) is installed on the outer circumference of the motor shaft (2) for dissipating heat and cooling the circuit board (6) and the motor body (1).

2. The integrated drive and control servo motor according to claim 1, characterized in that: A partition member (22) is arranged inside the heat dissipation cavity (10), the partition member (22) is located between the air inlet channel (8) and the heat dissipation fan (11), and a diversion part (23) is formed on the inner circumference of the partition member (22).

3. The integrated drive and control servo motor according to claim 1, characterized in that: A magnet (3) is installed at the rear end of the motor shaft (2), and an encoder (7) which is used in cooperation with the magnet (3) is installed on the side of the casting (5).

4. The integrated drive and control servo motor according to claim 1, characterized in that: A cover plate (13) is installed at the rear end of the casting (5), an installation cavity (14) is formed between the cover plate (13) and the casting (5), and a circuit board (6) is arranged inside the installation cavity (14).

5. The integrated drive and control servo motor according to claim 3, wherein: Air inlets (15) are formed on the outer circumference of the cover plate (13).

6. The integrated drive and control servo motor according to claim 1, wherein: A plurality of first heat dissipation fins (16) are formed on the outer circumference of the casting (5), a plurality of heat dissipation aluminum sheets (17) are formed on the inner side of the casting (5), and heat dissipation channels (18) are formed between two adjacent heat dissipation aluminum sheets (17).

7. The integrated drive and control servo motor according to claim 1, wherein: A plurality of air outlet openings (19) are formed between the installation part (4) and the motor body (1), air inlets (15) are formed on the installation part (4), and a plurality of second heat dissipation fins (20) are formed on the outer circumference of the installation part (4) and the motor body (1).

8. The integrated drive and control servo motor according to claim 1, characterized in that: A junction box (21) is installed on the upper end surface of the installation part (4) or the casting (5), and a wire passing hole one (24) and a wire passing hole two (25) are respectively formed on the lower end surface of the junction box (21).

9. The integrated drive and control servo motor according to claim 1, wherein: A nameplate (26) is installed on the side of the motor body (1), and the two ends of the nameplate (26) are respectively arranged on the end surfaces of the air outlet channel (9) and the air inlet channel (8).

10. The integrated drive and control servo motor according to claim 1, characterized in that: The casting (5) and the motor body (1) are connected by fasteners.

Images