Motor integration device

Abstract

The utility model provides a motor integration device. The motor integration device comprises a shell assembly, a motor assembly, a speed reducing mechanism and a control assembly. The second shell is connected between the first shell and the third shell. The speed reduction mechanism is arranged in the first shell, the motor assembly is arranged in the second shell, and the control assembly is arranged in the third shell, so that a three-in-one structure of control, rotation and speed reduction is formed, the occupied space of the motor integration device is saved, and the structure between parts is more compact; moreover, the output shaft of the motor assembly is connected with the first speed reduction assembly, and then the first speed reduction assembly is connected with the second speed reduction assembly, so that the output torque of the motor can be improved through secondary speed reduction, and stable power output can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of power systems, in particular to a motor integration device. Background Art

[0002] With the development of electrification of transportation and the development of the automobile industry, people's travel has become more convenient. Motors and controllers are important core components of automobiles. The controller connects the Hall line and phase line of the motor through cables to control the movement of the motor. These components on existing automobiles are usually split and fixed separately, which not only increases the line cost, but also takes up a large installation space. Utility Model Content

[0003] The embodiment of the present application aims to provide a motor integration device to improve the problem that the motor and the controller occupy a large installation space and need to be fixed separately.

[0004] In order to solve the technical problem, the embodiment of the present application adopts the following technical solution:

[0005] In the first aspect, an embodiment of the present application provides a motor integrated device, including a housing assembly, a motor assembly, a reduction mechanism and a control assembly. The housing assembly includes a first housing, a second housing and a third housing, and the second housing is connected between the first housing and the third housing. The motor assembly is arranged in the second housing. The reduction mechanism is arranged in the first housing, and the reduction mechanism includes a first reduction assembly and a second reduction assembly connected to the first reduction assembly. The output shaft of the motor assembly extends to the first housing, and the output shaft is connected to the first reduction assembly. The control assembly is arranged in the third housing, and the control assembly is communicatively connected to the motor assembly.

[0006] In some embodiments, the control assembly includes a first printed circuit board, a second printed circuit board, a third printed circuit board, a first support column and a second support column. The second printed circuit board is arranged between the first printed circuit board and the third printed circuit board, the first support column is arranged between the first printed circuit board and the second printed circuit board, and the second support column is arranged between the second support column and the third support column.

[0007] In some embodiments, the first reduction assembly includes a first gear and a second gear. The second reduction assembly includes a third gear. The first gear is connected to the output shaft, the second gear is disposed between the first gear and the third gear, and the second gear is meshed with the first gear and the third gear.

[0008] In some embodiments, the first housing includes a main body and an extension portion connected to each other, the main body is disposed at an end of the second housing away from the third housing, and the extension portion is located between the main body and the third housing along the direction from the main body to the third housing. The second reduction assembly also includes a transmission shaft, the transmission shaft is connected to the third gear, and the transmission shaft is disposed in the extension portion.

[0009] In some embodiments, a first bearing is provided between the output shaft and the first housing, and the output shaft is passed through the first bearing. The motor integrated device further includes a first shaft seal, which is provided between the first housing and the output shaft, and is located between the first bearing and the first gear.

[0010] In some embodiments, a second bearing is provided between the transmission shaft and the extension portion, and the transmission shaft is passed through the second bearing and extends out of the extension portion. The motor integrated device further includes a second shaft seal portion, which is provided between the extension portion and the transmission shaft, and is located at an end of the second bearing away from the third gear.

[0011] In some embodiments, the first housing encloses a first receiving space, and the speed reduction mechanism is disposed in the first receiving space. The first housing also has an oil groove, which is connected to the first receiving space. The first housing is provided with an oil inlet, which is connected to the oil groove.

[0012] In some embodiments, the oil groove is disposed in the first housing at least partially surrounding the reduction mechanism.

[0013] In some embodiments, the first housing further comprises a covering portion, the covering portion is disposed on the first receiving space and connected to the main body. The motor integrated device further comprises an oil seal portion, the oil seal portion is disposed between the covering portion and the main body.

[0014] In some embodiments, a fixing member is disposed on the outer surface of the second shell, the fixing member has a first end face and a second end face that are opposite to each other, and the fixing member is provided with a fixing hole that passes through the first end face and the second end face, and the fixing hole is used to fix an external device.

[0015] Different from the related art, the present application provides a motor integrated device. The motor integrated device includes a housing assembly, a motor assembly, a reduction mechanism and a control assembly. The second housing is connected between the first housing and the third housing. The reduction mechanism is arranged in the first housing, the motor assembly is arranged in the second housing, and the control assembly is arranged in the third housing, thus forming a three-in-one structure of control, rotation and reduction, which not only saves the space occupied by the motor integrated device, but also makes the structure between the parts more compact; moreover, the output shaft of the motor assembly is connected to the first reduction assembly, and the first reduction assembly is connected to the second reduction assembly. The output torque of the motor can be increased through secondary reduction, and a smooth power output can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Some exploded diagrams of motor integrated devices provided in the embodiments of the present application;

[0017] Figure 2 are some overall structural schematic diagrams of motor integrated devices provided in the embodiments of the present application;

[0018] Figure 3 It is a connection diagram of some motor components and reduction mechanisms provided in the embodiments of the present application;

[0019] Figure 4 It is a schematic diagram of the structure of some control components provided in the embodiments of the present application;

[0020] Figure 5 It is a schematic diagram of the structure of some first housings and speed reduction mechanisms provided in the embodiments of the present application;

[0021] Figure 6 It is a schematic diagram of the structure of some first housings and speed reduction mechanisms provided in the embodiments of the present application;

[0022] Figure 7 is a schematic diagram of the connection between some output shafts and the first bearing provided in the embodiments of the present application;

[0023] Figure 8 is a cross-sectional view of the connection between some speed reduction mechanisms and the first housing provided in the embodiments of the present application;

[0024] Fig. 9 It is a schematic diagram of the structure of some motor components provided in the embodiments of the present application.

[0025] Reference numerals:

[0026] 100, motor integrated device; 10, housing assembly; 11, first housing; 111, first receiving space; 112, main body; 113, extension; 114, cover; 115, oil groove; 116, oil inlet; 12, second housing; 121, fixing member; 1211, first end surface; 1212, fixing hole; 13, third housing;

[0027] 20. Motor assembly; 21. Output shaft; 22. First bearing; 23. Third bearing;

[0028] 30. Speed ​​reduction mechanism; 31. First speed reduction assembly; 311. First gear; 312. Second gear; 3121. First sub-gear; 3122. Second sub-gear; 33. Connecting shaft; 32. Second speed reduction assembly; 321. Third gear; 322. Transmission shaft; 323. Second bearing;

[0029] 40. Control component; 41. First printed circuit board; 42. Second printed circuit board; 43. Third printed circuit board; 44. First support column; 45. Second support column; 46. Detection component;

[0030] 50. First shaft sealing part;

[0031] 60. Second shaft sealing part;

[0032] 70. Oil seal part;

[0033] X, first direction. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "several" is more than one, unless otherwise clearly and specifically defined.

[0036] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. In addition, the technical features involved in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

[0037] In a first aspect, the present application embodiment provides a motor integration device 100, please refer to Figure 1 The motor integrated device 100 includes a housing assembly 10 , a motor assembly 20 , a speed reduction mechanism 30 and a control assembly 40 .

[0038] For the housing assembly 10, please refer to Figure 1 and Figure 2 , the housing assembly 10 includes a first housing 11, a second housing 12 and a third housing 13. The housing assembly 10 is arranged outside the motor integrated device 100 to provide physical protection for the internal parts to prevent them from being affected by the external environment. For example, dust, moisture and impurities are prevented from entering the device. In addition, the housing assembly 10 can also provide support and fixation for the motor assembly 20, the reduction mechanism 30 and the control assembly 40 to ensure that they remain relatively stable during operation. Further, the second housing 12 is connected between the first housing 11 and the third housing 13. The reduction mechanism 30 is arranged in the first housing 11, the motor assembly 20 is arranged in the second housing 12, and the control assembly 40 is arranged in the third housing 13. By integrating the reduction mechanism 30, the motor assembly 20 and the control assembly 40, a three-in-one structure of control, rotation and deceleration is formed, which not only saves the occupied space of the motor integrated device 100, but also makes the structure between the parts more compact, reducing the difficulty of assembly work for workers. In order to make the shell assembly 10 more tightly connected, sealant can be used to fix the first shell 11, the second shell 12 and the third shell 13; the first shell 11, the second shell 12 and the third shell 13 can also be formed as one piece, for example, the first shell 11 and the second shell 12 share a common part, and the second shell 12 and the third shell 13 share a common part.

[0039] For the above motor assembly 20, please refer to Figure 1 , the motor assembly 20 is a structure that converts electrical energy into mechanical energy. In the embodiment of the present application, the motor assembly 20 includes a flat wire motor. The flat wire motor has the following advantages: high precision, the flat wire motor can achieve high motion accuracy because it can directly convert electrical energy into linear motion, avoiding the influence of the changing mechanical connection in the traditional rotating motor on the transmission accuracy; high efficiency, the flat wire motor has high conversion efficiency when converting electrical energy into mechanical energy, so it can save energy and reduce heat loss; fast response, when fast motion and high-frequency vibration are required, the flat wire motor can respond quickly to the control signal; low noise, because the flat wire motor has no gears and friction parts, the noise is very low, suitable for low-noise occasions.

[0040] For the above-mentioned speed reduction mechanism 30, please refer to Figures 1 to 3The deceleration mechanism 30 includes a first deceleration assembly 31 and a second deceleration assembly 32 connected to the first deceleration assembly 31. The output shaft 21 of the motor assembly 20 extends from the first housing 11, and the output shaft 21 is connected to the first deceleration assembly 31, and the output shaft 21 can drive the first deceleration assembly 31 to rotate. Compared with the second deceleration assembly 32, the first deceleration assembly 31 is connected to the output shaft 21, so that the rotation speed of the first deceleration assembly 31 is faster than that of the second deceleration assembly 32. The first deceleration assembly 31 and the second deceleration assembly 32 perform secondary deceleration, so that the power maintains a smoother linear transmission. Specifically, the deceleration mechanism 30 can convert the input high-speed rotational motion into the output low-speed high-torque motion, and reduce mechanical vibration and impact by dispersing the transmission load, so that the power transmission is smoother. The first deceleration assembly 31 and the second deceleration assembly 32 in the deceleration mechanism 30 can both provide a certain reduction ratio, thereby amplifying the output torque, which is very helpful for heavy machinery equipment or automobile drive systems that require torque amplification. The speed reduction mechanism 30 can distribute the load to multiple gears by setting two speed reduction components, reduce the excessive load on a single gear, and improve the reliability and service life of the device. The speed reduction mechanism 30 can be set with multiple speed reduction components according to needs.

[0041] For the control assembly 40, please refer to Figure 1 and Figure 4 , the control component 40 can control the motor to work according to the set direction, speed, angle, and response time by communicating with the motor component 20. Further, the control component 40 includes a first printed circuit board 41, a second printed circuit board 42, a third printed circuit board 43, a first support column 44, and a second support column 45. The second printed circuit board 42 is arranged between the first printed circuit board 41 and the third printed circuit board 43, the first support column 44 is arranged between the first printed circuit board 41 and the second printed circuit board, and the second support column 45 is arranged between the second support column 45 and the third support column. By arranging support columns between printed circuit boards, the heat dissipation space between the printed circuit boards can be increased, and the heat dissipation efficiency can be improved.

[0042] In some embodiments, please refer to Figure 4 The first printed circuit board 41 can be a control board to realize various operation modes and functions of the motor. The second printed circuit board 42 can be a support board for supporting the overall structure of the control component 40, and also has a heat dissipation function, which can transfer the heat of the first printed circuit board 41 and the third printed circuit board 43 to the second printed circuit board 42 to ensure that the electronic components can operate stably during work. The third printed circuit board 43 can be a power board, which can convert the input electrical energy into electrical energy suitable for the operation of the motor, and at the same time assume the driving function of the motor to provide power to the motor.

[0043] In some embodiments, please refer to Figure 4 The control component 40 also includes a detection member 46, which can be arranged on the power board. The rotor on the motor in the motor assembly 20 is provided with a mark, which can be a color or a slot on the rotor. The detection member 46 is usually arranged facing the rotor and is used to detect the mark. Each time the detection member 46 detects a mark, it means that the rotor has made one circle, from which the rotation speed of the rotor can be obtained. Since the first reduction assembly 31 and the second reduction assembly 32 in the reduction mechanism 30 can both provide a certain reduction ratio, the rotation speed of the rotating shaft in the second reduction assembly 32 can be obtained according to the reduction ratio.

[0044] In the embodiment of the present application, the motor integrated device 100 includes a housing assembly 10, a motor assembly 20, a reduction mechanism 30 and a control assembly 40. The second housing 12 is connected between the first housing 11 and the third housing 13. The reduction mechanism 30 is arranged in the first housing 11, the motor assembly 20 is arranged in the second housing 12, and the control assembly 40 is arranged in the third housing 13, so that a three-in-one structure of control, rotation and reduction is formed, which not only saves the occupied space of the motor integrated device 100, but also makes the structure between the parts more compact; moreover, the output shaft 21 of the motor assembly 20 is connected to the first reduction assembly 31, and the first reduction assembly 31 is further connected to the second reduction assembly 32. The output torque of the motor can be increased through secondary reduction, and a smooth power output can be achieved.

[0045] In some embodiments, please refer to Figure 3 and Figure 5 , the first reduction assembly 31 includes a first gear 311 and a second gear 312. The second reduction assembly 32 includes a third gear 321. The first gear 311 is connected to the output shaft 21, the second gear 312 is arranged between the first gear 311 and the third gear 321, and the second gear 312 is meshed with the first gear 311 and the third gear 321. Further, the second gear 312 includes a first sub-gear 3121 and a second sub-gear 3122, and the first sub-gear 3121 and the second sub-gear 3122 are stacked and arranged on the connecting shaft 33. The first sub-gear 3121 is connected to the first gear 311, and the second sub-gear 3122 is connected to the third gear 321 to achieve secondary reduction, so that the power is transmitted more smoothly.

[0046] In some embodiments, please refer to Figure 5 and Figure 6 The first shell 11 encloses a first receiving space 111, and the speed reduction mechanism 30 is arranged in the first receiving space 111, which can effectively utilize the internal space, make the entire device more compact and miniaturized, and reduce collision, pollution or damage by external objects.

[0047] In some embodiments, please refer to Figure 2 and Figure 6 The first shell 11 includes a main body 112 and an extension 113 connected to each other. The main body 112 is arranged at the end of the second shell 12 away from the third shell 13, and the main body 112 is connected to the second shell 12. Along the direction from the main body 112 to the third shell 13 (that is, the first direction X), the extension 113 is located between the main body 112 and the third shell 13. The second reduction assembly 32 also includes a transmission shaft 322, which is connected to the third gear 321, and the transmission shaft 322 is arranged in the extension 113, which can reduce the collision and damage of the rotating shaft. The first shell 11 also includes a covering portion 114, which is covered in the first receiving space 111 and connected to the main body 112. The covering portion 114 can be made of a material with good heat dissipation performance, such as metal aluminum, copper, aluminum alloy, etc. Since a large amount of heat is generated during the high-speed operation of the gears, the first receiving space 111 contains lubricating oil which can transfer the heat to the cover portion 114 and the main body 112, and then dissipate the heat to the external environment through the cover portion 114 and the main body 112, so as to improve the performance and service life of the device. In addition, the cover portion 114 has a large surface area, which can improve the heat dissipation efficiency.

[0048] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 8 , there is a first bearing 22 between the output shaft 21 and the first housing 11, and the output shaft 21 is inserted into the first bearing 22. The motor integrated device 100 also includes a first shaft seal 50, which is arranged between the first housing 11 and the output shaft 21, and the first shaft seal 50 is located between the first bearing 22 and the first gear 311. The first shaft seal 50 can prevent lubricating liquid and iron filings and other substances in the first receiving space 111 from entering the first bearing 22 and the second housing 12 to ensure the normal operation of the motor assembly 20. The first shaft seal can be made of a spring and silicone. For example, the annular silicone contains a spring, and the elasticity of the spring makes the first shaft seal and the output shaft 21 fit more closely.

[0049] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 8 A second bearing 323 is provided between the transmission shaft 322 and the extension portion 113, and the transmission shaft 322 is passed through the second bearing 323 and extends out of the extension portion 113. The motor integrated device 100 further includes a second shaft seal 60, which is provided between the extension portion 113 and the transmission shaft 322, and is located at an end of the second bearing 323 away from the third gear 321. The second shaft seal can prevent debris in the external environment from entering the extension portion 113, thereby reducing damage and contamination to the extension portion 113 and the second bearing 323.

[0050] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 8 A third bearing 23 is provided between the output shaft 21 and the covering portion 114 . The first bearing 22 and the third bearing 23 are simultaneously connected to the output shaft 21 to limit the position of the output shaft 21 and prevent the output shaft 21 from deflecting.

[0051] In some embodiments, please refer to Figure 6 The first housing 11 also has an oil groove 115, which is arranged in the first housing 11 at least partially around the reduction mechanism 30, and the oil groove 115 is connected to the first receiving space 111. The first housing 11 is provided with an oil inlet 116, which is connected to the oil groove 115. The oil inlet 116 can be threadedly connected by a nut to facilitate the opening or closing of the oil inlet 116. By increasing the refueling path, the oil groove 115 can be refueled and the lubricating oil can be replaced without disassembling the machine equipment or opening the internal components, thereby improving the convenience and maintenance efficiency of the device. In addition, by providing the oil groove 115 and the oil inlet 116, the leakage of oil into the machine can be reduced, and the pollution of the water and oil circuits in the device can be reduced.

[0052] Furthermore, the motor integrated device 100 further includes an oil seal 70, which is disposed between the cover 114 and the main body 112. The oil seal 70 may be made of materials such as cotton and rubber. The oil seal 70 may seal the lubricating oil in the first receiving space 111 to reduce the leakage of the lubricating oil to the outside of the device. In addition, the oil seal 70 may prevent dust and foreign matter from entering the first housing 11, protect the reduction mechanism 30 from contamination and wear, and improve the life and reliability of the reduction mechanism 30.

[0053] In some embodiments, please refer to Fig. 9 The outer surface of the second housing 12 is provided with a fixing member 121, the fixing member 121 has a first end face 1211 and a second end face that are arranged opposite to each other, and the fixing member 121 is provided with a fixing hole 1212 that passes through the first end face 1211 and the second end face (not shown in the figure), and the fixing hole 1212 is used to fix an external device. For example, the fixing member 121 can be fixedly connected to the external device by hanging, thereby increasing the diversity of use of the motor integrated device 100.

[0054] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A motor integrated device, characterized in that: include: A housing assembly, comprising a first housing, a second housing and a third housing, wherein the second housing is connected between the first housing and the third housing; A motor assembly, disposed in the second housing; A reduction mechanism is disposed in the first housing, the reduction mechanism comprises a first reduction assembly and a second reduction assembly connected to the first reduction assembly, the output shaft of the motor assembly extends from the first housing, and the output shaft is connected to the first reduction assembly; A control component is disposed in the third housing, and the control component is communicatively connected with the motor component.

2. The motor integrated device according to claim 1, characterized in that: The control assembly includes a first printed circuit board, a second printed circuit board, a third printed circuit board, a first support column and a second support column; The second printed circuit board is arranged between the first printed circuit board and the third printed circuit board, the first supporting column is arranged between the first printed circuit board and the second printed circuit board, and the second supporting column is arranged between the second supporting column and the third supporting column.

3. The motor integrated device according to claim 1, characterized in that: The first reduction assembly includes a first gear and a second gear; The second reduction assembly includes a third gear; The first gear is connected to the output shaft, the second gear is disposed between the first gear and the third gear, and the second gear is meshed with the first gear and the third gear.

4. The motor integrated device according to claim 3, characterized in that: The first shell comprises a main body and an extension part connected to each other, the main body is arranged at one end of the second shell away from the third shell, and the extension part is located between the main body and the third shell along the direction from the main body to the third shell; The second reduction assembly further includes a transmission shaft, the transmission shaft is connected to the third gear, and the transmission shaft is disposed in the extension portion.

5. The motor integrated device according to claim 3, characterized in that: A first bearing is provided between the output shaft and the first housing, and the output shaft passes through the first bearing; The motor integrated device further includes a first shaft seal portion, which is disposed between the first housing and the output shaft, and is located between the first bearing and the first gear.

6. The motor integrated device according to claim 4, characterized in that: A second bearing is provided between the transmission shaft and the extension portion, and the transmission shaft passes through the second bearing and extends out of the extension portion; The motor integrated device further includes a second shaft seal portion, which is disposed between the extension portion and the transmission shaft, and is located at an end of the second bearing away from the third gear.

7. The motor integrated device according to claim 4, characterized in that: The first housing encloses a first receiving space, and the speed reduction mechanism is disposed in the first receiving space; The first housing further comprises an oil groove, and the oil groove is communicated with the first receiving space; The first housing is provided with an oil inlet, and the oil inlet is communicated with the oil groove.

8. The motor integrated device according to claim 7, characterized in that: The oil groove is arranged in the first housing at least partially surrounding the speed reduction mechanism.

9. The motor integrated device according to claim 7, characterized in that: The first shell further includes a covering portion, which is disposed on the first receiving space and connected to the main body; The motor integrated device further includes an oil seal portion, and the oil seal portion is disposed between the cover portion and the main body portion.

10. The motor integrated device according to claim 1, characterized in that: A fixing piece is disposed on the outer surface of the second shell, wherein the fixing piece has a first end surface and a second end surface that are disposed opposite to each other, and the fixing piece is provided with a fixing hole that passes through the first end surface and the second end surface, and the fixing hole is used to fix an external device.

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