Motor and driver two-in-one device

Abstract

The utility model discloses a motor and driver two-in-one device, and relates to the technical field of motors. Comprising a two-in-one device body, the two-in-one device body comprises a motor body and a driver body, a heat dissipation cover is arranged at the top of the motor body, and the driver body is arranged at the top of the heat dissipation cover. The driver main body and the motor main body are effectively combined into a whole, heat dissipation is carried out through the motor heat dissipation shell, the size is small, installation is convenient, the overload capacity is high, the high efficiency and the high reliability are achieved, the thin-film capacitor and the PCBA are installed in the motor heat dissipation shell, the installation space in the driver main body is saved, and the installation cost is reduced. According to the utility model, the heat dissipation efficiency of the power PCB and the IGBT module is ensured, the requirement of the thin film capacitor on the environment temperature is also met, the process difficulty and the use cost are reduced, the arrangement of the whole product which can be approached and the coil sleeve is improved, the condition that the wiring of the motor main body is abraded is avoided, and the service life of the product is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a two-in-one device of a motor and a driver. Background Art

[0002] Motors and drives are generally used in industrial machinery such as balers and electric rubber molding equipment. However, existing motors and drives still have the following shortcomings when used:

[0003] The existing motor and driver are a split combination with a simple structural design. PCBA and thin film capacitors need to be installed inside the driver, which takes up space inside the driver and reduces the driver's heat dissipation efficiency. In addition, both the driver and motor use independent heat dissipation structures, which have high production costs and difficult processes, resulting in unsatisfactory performance. Summary of the Invention

[0004] The utility model provides a two-in-one device of a motor and a driver to solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a two-in-one motor and driver device, comprising a two-in-one device body, the two-in-one device body comprising a motor body and a driver body, a heat dissipation cover being provided on the top of the motor body, the driver body being provided on the top of the heat dissipation cover, and wind shields being provided on both sides of the motor body, one end of the two wind shields being in contact with each other, and the other end being in contact with the two ends of the bottom of the heat dissipation cover respectively;

[0006] The windshield cover and the heat dissipation cover form a motor heat dissipation shell, and a fan located at one end of the motor body is arranged inside the motor heat dissipation shell. A braking resistor is arranged on the side of the windshield cover facing the motor body.

[0007] Furthermore, a power PCB board and an IGBT module are provided inside the driver body.

[0008] Furthermore, a plurality of heat sinks are provided inside the heat dissipation cover.

[0009] Furthermore, the fan is installed inside the motor heat dissipation housing through a fan bracket, and an air guide ring is provided on a side of the fan away from the fan bracket.

[0010] Furthermore, a PCBA is provided at the bottom of one side of the fan bracket, a film capacitor is provided on the top of the PCBA, and one end of the braking resistor is connected to one side of the fan bracket.

[0011] Furthermore, the bottoms of the two windshield covers are commonly provided with at least one mounting strip.

[0012] Furthermore, a motor tail plate located on one side of the air guide ring is provided at one end of the motor heat dissipation housing.

[0013] Furthermore, a bell housing is provided on the outside of one end of the motor body, and an oil pump is provided on one end of the motor body.

[0014] Furthermore, a coil sleeve is provided at the bottom of the driver body, the bottom end of which extends into the interior of the motor heat dissipation housing.

[0015] Compared with the prior art, the present invention provides a two-in-one motor and driver device, which has the following beneficial effects:

[0016] This two-in-one motor and driver device effectively combines the driver body and the motor body into one, and dissipates heat together through the motor heat dissipation housing. It is not only small in size, easy to install, and has a strong overload capacity, but also has high efficiency and high reliability. The film capacitor and PCBA are installed inside the motor heat dissipation housing, which not only saves installation space inside the driver body, ensures the heat dissipation efficiency of the power PCB board and IGBT module, but also meets the film capacitor's requirements for ambient temperature. At the same time, it reduces the process difficulty and use cost, improves the overall accessibility of the product, and the setting of the coil sleeve avoids wear and tear on the motor body wiring, further increasing the product life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the motor tail plate structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the brake resistor structure of the utility model;

[0021] Figure 5 This is an exploded view of the structure of the present invention.

[0022] In the figure: 1. Two-in-one device body; 101. Motor tail plate; 11. Motor body; 12. Driver body; 121. Power PCB board; 122. IGBT module; 123. Coil sleeve; 13. Heat sink cover; 131. Heat sink; 14. Wind shield; 141. Mounting strip; 15. Braking resistor; 16. Bell cover; 17. Oil pump; 18. Fan; 181. Fan bracket; 182. Air guide ring; 19. PCBA; 191. Film capacitor. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 The utility model discloses a two-in-one device of a motor and a driver, including a two-in-one device body 1, wherein the two-in-one device body 1 includes a motor body 11 and a driver body 12, a heat dissipation cover 13 is provided on the top of the motor body 11, and the driver body 12 is provided on the top of the heat dissipation cover 13, and wind shields 14 are provided on both sides of the motor body 11, and one end of the two wind shields 14 contacts each other, and the other end contacts the two ends of the bottom of the heat dissipation cover 13 respectively.

[0025] The wind shield cover 14 and the heat dissipation cover 13 form a motor heat dissipation shell, and a fan 18 located at one end of the motor body 11 is provided inside the motor heat dissipation shell. A braking resistor 15 is provided on the side of the wind shield cover 14 facing the motor body 11, and a coil sleeve 123 is provided at the bottom of the driver body 12, the bottom end of which extends to the inside of the motor heat dissipation shell.

[0026] The braking resistor 15 has the following functions:

[0027] Energy consumption and heat dissipation: When the motor body 11 generates electrical energy exceeding the rated capacity during braking, the braking resistor 15 will convert the excess energy into heat energy and release it into the surrounding environment through the heat dissipation cover 13 and the wind shield cover 14. This can avoid excessive energy accumulation inside the motor, thereby maintaining the stability and safety of the motor body 11 operation.

[0028] Controlling the rotation speed and braking force: The braking resistor 15 can change the load of the motor body 11 during braking by adjusting the resistance value, thereby controlling the rotation speed and braking force. When the motor body 11 brakes, the resistance value of the braking resistor 15 increases, which can increase the load of the circuit and reduce the rotation speed of the motor body 11, thereby achieving a larger braking torque.

[0029] Protect the motor and driver: The braking resistor 15 can absorb and disperse electrical energy during the start, stop or braking process of the motor body 11, prevent the motor body 11 from causing overvoltage and current when it stops suddenly, and protect the operation process of the motor body 11 and the driver body 12. By controlling the resistance value and power of the braking resistor 15, the overload and overheating of the motor body 11 and the driver body 12 can be effectively reduced, thereby extending the service life of the equipment.

[0030] Improve system stability: The braking resistor 15 can eliminate oscillations and unstable factors generated during the braking process of the motor body 11, improve the dynamic response and steady-state performance of the system, and by reasonably setting the parameters of the braking resistor 15, reduce the impact and vibration of the motor body 11 during braking, and maintain the smooth operation of the system.

[0031] To sum up, the braking resistor 15 plays an important role in the inverter. By converting electrical energy into thermal energy, controlling the speed and braking force, protecting the motor body 11 and the driver, and improving the stability of the system, the braking resistor 15 effectively realizes the braking function of the motor body 11. Connecting the braking resistor 15 to the DC busbar of PCBA19 can easily export excess energy and maintain the stable operation of the inverter. The normal operation of the motor body 11 and the safety and reliability of the equipment are of great significance. In order for the braking resistor 15 to better play its role in the product and increase the service life of the product, the temperature control of the braking resistor 15 is very important. The braking resistor 15 is installed on the left and right windshield covers 14. The layout is reasonable and can also play a heat dissipation effect, which can be said to kill two birds with one stone.

[0032] Specifically, the motor body 11 and the driver body 12 are rationally combined together, and the structure is compact, giving people a sense of being smart and capable. Although small, it has all the necessary organs, and the various components are rationally arranged. The motor body 11 outputs the wires from the tail, and then the busbar of the motor body 11 is led to the inside of the driver body 12 through the coil sleeve 123, thereby driving the operation of the motor body 11. Since the heat sink 131 itself is relatively sharp, the design of the coil sleeve 123 is more considering the risk of long-term vibration of the motor body 11 and the risk of wear on the wire. The structural design of the coil sleeve 123 can completely wrap the entire motor body 11 output wire, which plays a good protective role. It is also hidden in the heat sink 131, and the outer structure cannot see the motor body 11 output wire at all, giving people a sense of beauty and elegance.

[0033] Specifically, a power PCB board 121 and an IGBT module 122 are provided inside the driver body 12. When the driver body 12 drives the motor body 11 to work for a long time, especially when it is running at high load, the IGBT module 122 and other electronic components on the power PCB board 121 will release a large amount of heat. In order to ensure the stability and reliability of the driver body 12, the heat of the IGBT module 122 and the electronic components will be transferred to the heat sink 131 and the windshield cover 14 through the heat dissipation cover 13. The contact area is large. The IGBT body and the power PCB board 121 are both in contact with the bottom of the inner wall of the driver body 12, and directly contact the heat dissipation cover 13 through the driver body. The heat is directly transferred to the heat sink 131. The heat sink 131 is serrated. The serrated structure of the heat sink 131 is conducive to heat dissipation. The heat dissipation cover 13 is assembled with the motor body 11 by snaps, which is firm, reliable and stable.

[0034] Most of the heat of the product comes from the work done by the driver body 12. In order to ensure good heat dissipation effect, the wind from the fan 18 is blown upward as much as possible. By customizing a suitable brake resistor 15, both ventilation and heat dissipation are guaranteed and a suitable spatial layout is provided for the brake resistor 15.

[0035] Specifically, a plurality of heat sinks 131 are provided inside the heat dissipation cover 13 . The design of the heat sink 131 can not only dissipate heat for the motor body 11 , but also dissipate heat for the driver body 12 .

[0036] Specifically, the fan 18 is installed inside the motor heat dissipation housing through a fan bracket 181. A wind guide ring 182 is provided on the side of the fan 18 away from the fan bracket 181. The interior of the wind guide ring 182 is flared to facilitate wind guidance.

[0037] Specifically, a PCBA19 is provided at the bottom of one side of the fan bracket 181, and a film capacitor 191 is provided on the top of the PCBA19. One end of the braking resistor 15 is connected to one side of the fan bracket 181. Traditional driver designs are relatively large and bulky because the previous drivers have PCBA19 and film capacitors 191. These components have high environmental requirements and occupy a large part of the space structure of the overall driver. This product does not place the film capacitor 191 and PCBA19 inside the driver body 12, but installs them inside the motor heat dissipation housing. This not only saves the space structure inside the driver body 12, but also meets the ambient temperature requirements of the film capacitor 191. It is placed at the tail of the motor body 11, and then under the frequency conversion action of the fan 18, the speed is adjusted according to the temperature to maintain the overall temperature drop. Then the air guide ring 182 and the motor tail plate 101 are installed, so that a two-in-one device of a motor body 11 and a driver body 12 is reasonably installed.

[0038] Specifically, at least one mounting bar 141 is commonly provided at the bottom of the two windshield covers 14 .

[0039] Specifically, a motor tail plate 101 located on one side of the air guide ring 182 is provided at one end of the motor heat dissipation housing.

[0040] Specifically, a bell jar 16 is provided on the outside of one end of the motor body 11, an oil pump 17 is provided on one end of the motor body 11, a pressure sensor is provided on the oil pump 17, and an encoder is provided on the end of the motor body 11 away from the oil pump 17. The motor body 11 and the oil pump 17 are connected together through a coupling. The motor body 11 is a direct-drive servo motor, which eliminates the need for a reducer and is directly driven by wiring, making the control more sensitive and precise; it is small in size, light in weight, and easy to install and maintain.

[0041] During use, after the driver body 12 is connected to the external power supply 380V, it controls the motor body 11 through instructions, supplies power to the motor body 11, maintains the operation of the motor body 11, and continuously outputs the motor body 11. The motor body 11 and the oil pump 17 are connected together through a coupling, thereby driving the rotation of the oil pump 17. The coupling is inside the bell cover 16, and the bell cover 16 plays a role in protecting and stabilizing the motor body 11 and the oil pump 17. The continuous input of the oil pump 17 and the pressure size are converted into digital analog signals through the pressure sensor and transmitted to the driver body 12. The driver body 12 receives instructions, thereby accurately controlling the torque and speed output of the motor body 11, thereby obtaining a complete operation instruction to further meet customer needs and requirements. The output of the torque and speed of the motor body 11 can be adjusted and accurately controlled by the driver body 12. A large amount of heat is generated during the continuous operation of the motor body 11, and the heat can be transferred out through the left and right windshield covers 14, the heat dissipation cover 13 and the motor frame. Driven by the driver body 12 , the fan 18 can adjust its speed according to the heat of the motor, thereby maintaining a sustainable operation of the whole.

[0042] To sum up, the two-in-one device of motor and driver effectively combines the driver body 12 and the motor body 11 into one, and dissipates heat together through the motor heat dissipation housing. It is not only small in size, easy to install, and has strong overload capacity, but also has high efficiency and high reliability. The thin film capacitor 191 and PCBA19 are installed inside the motor heat dissipation housing, which not only saves the installation space inside the driver body 12, ensures the heat dissipation efficiency of the power PCB board 121 and the IGBT module 122, but also meets the ambient temperature requirements of the thin film capacitor 191, while reducing the process difficulty and use cost, and improving the overall accessibility of the product. The setting of the coil sleeve 123 avoids wear and tear on the wiring of the motor body 11, further improving the service life of the product.

[0043] 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-in-one motor and driver device, comprising a two-in-one device body (1), characterized in that: The two-in-one device body (1) comprises a motor body (11) and a driver body (12); a heat dissipation cover (13) is provided on the top of the motor body (11); the driver body (12) is provided on the top of the heat dissipation cover (13); wind shields (14) are provided on both sides of the motor body (11); one ends of the two wind shields (14) are in contact with each other, and the other ends are in contact with the two ends of the bottom of the heat dissipation cover (13); The windshield cover (14) and the heat dissipation cover (13) form a motor heat dissipation housing, and a fan (18) located at one end of the motor body (11) is provided inside the motor heat dissipation housing. A brake resistor (15) is provided on the side of the windshield cover (14) facing the motor body (11).

2. The two-in-one motor and driver device according to claim 1, characterized in that: A power PCB board (121) and an IGBT module (122) are provided inside the driver body (12).

3. The two-in-one motor and driver device according to claim 1, characterized in that: A plurality of heat dissipation fins (131) are provided inside the heat dissipation cover (13).

4. The two-in-one motor and driver device according to claim 1, characterized in that: The fan (18) is installed inside the motor heat dissipation housing via a fan bracket (181), and an air guide ring (182) is provided on a side of the fan (18) away from the fan bracket (181).

5. The two-in-one motor and driver device according to claim 4, characterized in that: A PCBA (19) is provided at the bottom of one side of the fan bracket (181), a film capacitor (191) is provided at the top of the PCBA (19), and one end of the braking resistor (15) is connected to one side of the fan bracket (181).

6. The two-in-one motor and driver device according to claim 1, characterized in that: The bottoms of the two windshield covers (14) are commonly provided with at least one mounting strip (141).

7. The two-in-one motor and driver device according to claim 1, characterized in that: One end of the motor heat dissipation housing is provided with a motor tail plate (101) located on one side of the air guide ring (182).

8. The two-in-one motor and driver device according to claim 1, characterized in that: A bell housing (16) is provided on the outside of one end of the motor body (11), and an oil pump (17) is provided on one end of the motor body (11).

9. The two-in-one motor and driver device according to claim 1, characterized in that: The bottom of the driver body (12) is provided with a coil sleeve (123) whose bottom end extends into the interior of the motor heat dissipation housing.

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