Oil-cooling three-in-one motor shell

Abstract

The invention relates to the technical field of motor body components, in particular to an oil-cooling three-in-one motor shell which comprises an outer protective shell, an inner assembly pipe is movably mounted in the outer protective shell, limiting end covers are fixedly mounted at the top and the bottom of the inner assembly pipe, inner positioning pipes are fixedly mounted in the limiting end covers, and a plurality of stators are movably mounted in the inner positioning pipes. The movable end covers are arranged above and below the structure formed by the inner assembly pipe and the limiting end cover, the movable end covers are movably clamped in the outer protection shell, cooling oil passing through the one-way valve flows back into the side oil guide pipe, circulation of the cooling oil is achieved, heat is taken away, only part of the cooling oil in the motor shell is needed in the using mode, and therefore the cooling oil can be recycled. When the part of the cooling oil cannot be used, the part of the cooling oil is replaced, and the purchasing of the cooling oil usually needs certain expenditure. The purchase cost can be directly reduced by reducing the using amount of the cooling oil, and the cooling oil needs to be replaced and maintained regularly in the using process, so that certain cost is generated.

Description

Technical Field

[0001] The invention relates to the technical field of motor body components, in particular to an oil-cooled three-in-one motor housing. Background Art

[0002] The motor housing is an important component of the motor. The material of the motor housing is generally aluminum alloy, steel plate or cast iron. The specific selection should be determined according to factors such as the motor's operating environment, working adjustment and performance requirements. The motor will generate a lot of heat during operation. If this heat cannot be dissipated in time, it will cause the motor temperature to rise and affect the motor's performance and life. The motor housing can serve as a medium for heat conduction to transfer the heat generated inside the motor to the external environment.

[0003] The cooling oil flow direction in the motor housing of conventional oil-cooled motors is mostly the same, and the cooling oil circulation method is single. The single circulation method may cause uneven flow of the cooling oil in the motor housing, and some parts may not be fully cooled, resulting in local overheating. Under different working conditions, the heating of the motor will be different. The single cooling oil circulation method may not be able to flexibly adjust the cooling effect to meet the needs of various working conditions. The single circulation method may not fully utilize the cooling capacity of the cooling oil, resulting in low cooling efficiency. In order to achieve a certain cooling effect, it may be necessary to use more cooling oil or increase the power of the cooling system, resulting in energy waste. Summary of the invention

[0004] The object of the present invention is to provide an oil-cooled three-in-one motor housing to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil-cooled three-in-one motor housing, comprising an outer protective housing, an inner mounting tube movably installed in the outer protective housing, a limiting end cover fixedly installed on the top and bottom of the inner mounting tube, an inner positioning tube fixedly installed in the limiting end cover, a plurality of stators movably installed in the inner positioning tube, movable end covers are arranged above and below the structure composed of the inner mounting tube and the limiting end cover, the movable end cover is movably engaged in the outer protective housing, first docking buckles are arranged at corresponding positions of the top and bottom of the outer wall of the outer protective housing, a second docking buckle is arranged at the position of the outer wall of the movable end cover corresponding to the first docking buckle, a connecting bolt is arranged between the first docking buckle and the second docking buckle for fixing, an arc-shaped intermediate plate and an arc-shaped intermediate plate are movably installed outside the inner mounting tube An oil guide plate, and the arc-shaped middle plate and the arc-shaped oil guide plate composition structure are located in an outer protective shell, the arc-shaped oil guide plate is provided with a plurality of annular oil guide grooves, an intermediate oil guide bin is arranged at the center of the arc-shaped middle plate, side oil guide pipes connected with the intermediate oil guide bin are arranged on both sides of the intermediate oil guide bin, a vertical oil guide pipe is arranged on the side of the side oil guide pipe away from the intermediate oil guide bin, and the vertical oil guide pipe is connected with the side oil guide pipe, a vertical installation groove for installing the vertical oil guide pipe is vertically opened on the arc-shaped oil guide plate, a cooling oil discharge port is opened on the vertical oil guide pipe at a position corresponding to the annular oil guide groove, a rectangular assembly seat is arranged on the front and back of the outer protective shell, the rectangular assembly seat corresponds to the position of the intermediate oil guide bin, and an oil inlet connected with the rectangular assembly seat is opened on the intermediate oil guide bin.

[0006] Preferably, the inner assembly tube, the limiting end cover and the inner positioning tube are an integrally formed structure.

[0007] Preferably, a groove corresponding to the shape of the stator is opened on the inner positioning tube, and the plurality of stators are distributed in a circular array with the central axis of the inner positioning tube as the array center.

[0008] Preferably, a portion that is engaged in the limiting end cover is provided on a side of the movable end cover close to the outer protective shell, and a side of the movable end cover close to the outer protective shell is in contact with the end of the inner positioning tube.

[0009] Preferably, a plurality of heat dissipation fins are arranged in the annular oil guide groove along the track of the annular oil guide groove, and the portion of the heat dissipation fins located in the arc-shaped oil guide plate fits with the outer wall of the inner assembly tube.

[0010] Preferably, a one-way valve is provided at the bottom of one of the intermediate oil guide tanks, and a locking valve is provided at the bottom of the other intermediate oil guide tank. Cooling oil flow pipes are provided at the bottom of the one-way valve and the locking valve. An annular oil guide pipe is provided between the two cooling oil flow pipes for connection, and the annular oil guide pipe is provided at a position on the outer wall of the inner assembly tube close to the bottom.

[0011] Preferably, an assembly frame is fixedly mounted on the outer wall of the outer protective shell, the assembly frame is provided with a rectangular hollow groove, the assembly frame is also provided with a plurality of spaced-apart grooves, the assembly frame is also provided with a rectangular heat dissipation groove, and the rectangular hollow groove is provided with a docking thread groove.

[0012] Preferably, an annular guide plate is provided at the rear position of the inner wall of the rectangular assembly seat, a plurality of rectangular connecting strips are distributed in an annular array on the outer wall of the annular guide plate with the central axis of the annular guide plate as the array center, an annular guide plate is fixedly installed on the inner wall of the annular guide plate, an annular diverter pipe is fixedly installed on the inner wall of the annular guide plate, and a gap is left between the annular guide plate and the inner wall of the rectangular assembly seat.

[0013] Preferably, a plurality of V-shaped drainage grooves are provided on the annular drainage plate.

[0014] Preferably, a refrigeration ring is movably installed in the rectangular assembly seat, a condenser is provided on one side of the refrigeration ring located in the rectangular assembly seat, and a docking tube is fixedly installed on the outer wall of the refrigeration ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. After the cooling oil is injected, the heat on the arc-shaped oil guide plate and the inner assembly pipe is taken away by the heat dissipation fins on the annular oil guide groove. The cooling oil entering the annular oil guide groove enters the side oil guide pipe and the middle oil guide tank on the other side. The condenser cools down the rectangular assembly seat and the middle oil guide tank at this position. The cooling oil flows along the locking valve, the cooling oil flow pipe, the annular oil guide pipe, and the one-way valve. The cooling oil that passes through the one-way valve flows back into the side oil guide pipe to realize the circulation of the cooling oil and take away the heat. This way of use only requires part of the cooling oil in the motor housing. When this part of the cooling oil cannot be used, it is replaced. The purchase of cooling oil usually requires a certain amount of expenses. Reducing the amount of cooling oil can directly reduce the procurement cost. The cooling oil needs to be replaced and maintained regularly during use, which will also incur certain costs. Reducing the amount of cooling oil means reducing the frequency and workload of maintenance, thereby reducing maintenance costs. Cooling the cooling oil usually consumes a certain amount of energy, but compared with the increase in energy consumption caused by overheating of the motor, the energy consumption of the cooling system is relatively small. By cooling the cooling oil, the temperature of the motor can be lowered, reducing the motor's demand for the cooling system, thereby reducing the energy consumption of the cooling system.

[0016] 2. The locking valve locks the seal. The oil pipe provides power for the delivery of cooling oil. The cooling oil enters the middle oil guide tank, passes through the side oil guide pipe and the vertical oil guide pipe, and flows in the annular oil guide groove to enter the middle oil guide tank on the other side. The cooling oil entering this position is discharged through the oil outlet pipe on the rectangular assembly seat, thereby realizing another circulation method of the cooling oil and taking away the heat. The unidirectional circulation of the cooling oil in the motor housing can continuously take away the heat generated during the operation of the motor. The unidirectional flowing cooling oil can quickly absorb heat and keep the motor within a relatively stable temperature range. The flow rate of the cooling oil is larger, and the effect of taking away the temperature of the motor housing is better, and the motor housing can be cooled better and faster.

[0017] 3. The arc-shaped middle plate and the arc-shaped oil guide plate can be customized according to different situations to meet different cooling oil flow paths to better dissipate heat at the designated position of the motor housing. Different motor housings may have different heating parts during design and use. By changing the cooling oil flow path, specific high-temperature areas can be focused on cooling to improve heat dissipation efficiency. For motor housings with irregular shapes or complex internal structures, a single cooling oil flow path may not achieve uniform heat dissipation. Changing the flow path can allow the cooling oil to better cover the entire motor housing surface, ensuring that the temperature of each part can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention.

[0019] Figure 2 It is a left side structural schematic diagram of the present invention.

[0020] Figure 3 It is a left side structural schematic diagram of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the corresponding position of the movable end cover of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure at the corresponding position of the stator of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the corresponding position of the assembly stand of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure at the corresponding position of the rectangular hollow groove of the present invention.

[0025] Figure 8 It is a schematic diagram of the structure at the corresponding position of the heat dissipation fin of the present invention.

[0026] Fig. 9 It is a structural schematic diagram of the corresponding position of the vertical oil guide pipe of the present invention.

[0027] Fig.10 It is a schematic diagram of the structure at the corresponding position of the refrigeration ring of the present invention.

[0028] Fig.11 It is a structural schematic diagram of the corresponding position of the annular guide plate of the present invention.

[0029] Fig.12 It is a structural schematic diagram of the oil inlet corresponding to the position of the present invention.

[0030] Fig.13 It is a structural schematic diagram of the corresponding position of the annular oil guide groove of the present invention.

[0031] Fig.14 It is a structural schematic diagram of the corresponding position of the intermediate oil guide bin of the present invention.

[0032] In the figure: 1, outer protective shell; 101, first docking buckle; 2, inner assembly pipe; 3, limit end cover; 4, inner positioning pipe; 5, stator; 6, movable end cover; 601, second docking buckle; 7, connecting bolt; 8, arc-shaped middle plate; 9, arc-shaped oil guide plate; 901, annular oil guide groove; 902, vertical installation groove; 10, intermediate oil guide tank; 1001, oil inlet; 11, side oil guide pipe; 12, vertical oil guide pipe; 1201, cooling oil outlet; 13, rectangular assembly Seat; 14, cooling fins; 15, one-way valve; 16, locking valve; 17, cooling oil flow pipe; 18, annular oil guide pipe; 19, assembly frame; 1901, rectangular hollow groove; 1902, interval separation groove; 1903, rectangular heat dissipation groove; 1904, docking thread groove; 20, annular guide plate; 21, rectangular connecting strip; 22, annular guide plate; 2201, V-shaped guide groove; 23, annular diverter pipe; 24, refrigeration ring; 25, condenser; 26, docking plug. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 14The present invention provides a technical solution: an oil-cooled three-in-one motor housing, comprising an outer protective housing 1, a coating is arranged on the outer wall of the outer protective housing 1, the outer protective housing 1 needs to be placed in an alkaline cleaning tank for cleaning, the outer protective housing 1 needs to be placed in an acid cleaning tank to prevent corrosion, the outer protective housing 1 is placed in flowing clean water, and then an air gun is used to clean the residual liquid in the outer protective housing 1, an inner assembly pipe 2 is movably installed in the outer protective housing 1, the top and bottom of the inner assembly pipe 2 are fixedly installed with a limiting end cover 3, the inner assembly pipe 2 and the limiting end cover 3 form an I-shaped structure, and the inner assembly pipe 2 and the limiting end cover 3 form a structure installed in the outer protective housing 1, a structure for oil flow is installed outside the inner assembly pipe 2 to realize cooling of the inner assembly pipe 2, the inner positioning pipe 4 and the structure inside the inner positioning pipe 4, the top and bottom of the inner assembly pipe 2 are fixedly installed with the limiting end cover 3, the inner positioning pipe 4 is fixedly installed in the limiting end cover 3, the inner assembly pipe 2, the limiting end cover 3 The inner positioning tube 4 is an integrally formed structure, and the rotor structure is placed in the structure composed of the inner assembly tube 2, the limiting end cover 3 and the inner positioning tube 4. A cooling structure is arranged outside the structure composed of the inner assembly tube 2, the limiting end cover 3 and the inner positioning tube 4. A plurality of stators 5 are movably installed in the inner positioning tube 4, and the stators 5 cooperate with the rotor to drive the rotation stability of the rotor. Movable end covers 6 are arranged above and below the structure composed of the inner assembly tube 2 and the limiting end cover 3. The movable end cover 6 is movably engaged in the outer protective shell 1, and a part engaged in the limiting end cover 3 is arranged on the side of the movable end cover 6 close to the outer protective shell 1, and the side of the movable end cover 6 close to the outer protective shell 1 is fitted with the end of the inner positioning tube 4, and an annular structure is arranged at the bottom of the movable end cover 6, and the annular structure at the bottom of the movable end cover 6 is engaged above or below the structure composed of the limiting end cover 3 and the inner positioning tube 4 to ensure the stability of the structure composed of the inner assembly tube 2, the limiting end cover 3 and the inner positioning tube 4 after the movable end cover 6 is engaged.

[0035] A first docking buckle 101 is provided at the corresponding positions of the top and bottom of the outer wall of the outer protective shell 1, and a second docking buckle 601 is provided at the position of the outer wall of the movable end cover 6 corresponding to the first docking buckle 101. A connecting bolt 7 is provided between the first docking buckle 101 and the second docking buckle 601 for fixing. A connecting bolt 7 is provided between the first docking buckle 101 and the second docking buckle 601 for fixed connection to ensure the stability of the movable end cover 6 after it is installed on the outer protective shell 1. One movable end cover 6 is fixedly installed on the top of the outer protective shell 1, and the other movable end cover 6 is fixedly installed on the bottom of the outer protective shell 1. An arc-shaped middle plate 8 and an arc-shaped oil guide plate 9 are movably installed outside the inner assembly pipe 2, and the arc-shaped middle plate 8 and the arc-shaped oil guide plate 9 are movably installed outside the inner assembly pipe 2. The structure of the arc-shaped oil guide plate 9 is located in the outer protective shell 1, and the arc-shaped middle plate 8 and the arc-shaped oil guide plate 9 form an annular structure. The barrel structure is formed by two arc-shaped middle plates 8 and two arc-shaped oil guide plates 9 to ensure the fixing effect of the arc-shaped middle plate 8 and the arc-shaped oil guide plate 9 structure installed on the inner assembly pipe 2. The arc-shaped oil guide plate 9 is provided with a plurality of annular oil guide grooves 901, and the annular oil guide grooves 901 are semicircular annular grooves. The oil flows in the annular oil guide grooves 901 to achieve the temperature driving of the inner assembly pipe 2 by the oil. The center position of the arc-shaped middle plate 8 is provided with an intermediate oil guide bin 10, and both sides of the intermediate oil guide bin 10 are provided with side oil guide pipes 11 connected to the intermediate oil guide bin 10, and the side oil guide pipes 11 are away from A vertical oil guide pipe 12 is provided on one side of the intermediate oil guide tank 10, and the vertical oil guide pipe 12 is connected with the side oil guide pipe 11. The oil injected into the intermediate oil guide tank 10 flows in the intermediate oil guide tank 10 and moves along the direction of the side oil guide pipe 11. At the same time, the oil in the side oil guide pipe 11 will continue to move and enter the vertical oil guide pipe 12. It is separated in the vertical oil guide pipe 12. The cooling oil entering the vertical oil guide pipe 12 is discharged from the cooling oil discharge port 1201, flows in the annular oil guide groove 901, and enters the vertical oil guide pipe 12, the side oil guide pipe 11 and the intermediate oil guide tank 10 on the other side through the annular oil guide groove 901. A vertical opening for installing the vertical oil guide pipe 12 is vertically opened on the arc-shaped oil guide plate 9. The mounting groove 902, the vertical oil guide pipe 12 is fixedly installed in the vertical mounting groove 902, and the position of the cooling oil discharge port 1201 on the vertical oil guide pipe 12 corresponds to the position of the annular oil guide groove 901 to ensure the normal flow of the cooling oil, and a cooling oil discharge port 1201 is provided at the position of the vertical oil guide pipe 12 corresponding to the annular oil guide groove 901, and a rectangular assembly seat 13 is provided on the front and back of the outer protective shell 1, and the position of the rectangular assembly seat 13 corresponds to the position of the intermediate oil guide bin 10, and an oil inlet 1001 connected to the rectangular assembly seat 13 is provided on the intermediate oil guide bin 10, and the rectangular assembly seat 13 is connected to the corresponding oil filling pipe and oil outlet pipe, thereby ensuring the flow of the cooling oil in the outer protective shell 1.

[0036] A groove corresponding to the shape of the stator 5 is opened on the inner positioning tube 4, and multiple stators 5 are distributed in a circular array with the central axis of the inner positioning tube 4 as the array center. The stator 5 is used to cooperate with the rotor, and the design position of the stator 5 needs to follow the design of the motor housing.

[0037] A plurality of heat dissipation fins 14 are arranged along the track of the annular oil guide groove 901, and the portion of the heat dissipation fins 14 located in the arc-shaped oil guide plate 9 is in contact with the outer wall of the inner assembly tube 2. The heat dissipation fins 14 increase the contact area with the cooling oil, and the cooling oil can better carry away the heat on the structure composed of the heat dissipation fins 14 and the arc-shaped oil guide plate 9, thereby realizing the heat dissipation operation.

[0038] A one-way valve 15 is provided at the bottom of one of the intermediate oil guide tanks 10, and a locking valve 16 is provided at the bottom of the other intermediate oil guide tank 10. A cooling oil flow pipe 17 is provided at the bottom of the one-way valve 15 and the locking valve 16. An annular oil guide pipe 18 is provided between the two cooling oil flow pipes 17 for connection, and the annular oil guide pipe 18 is provided at a position close to the bottom of the outer wall of the inner assembly pipe 2. The rectangular assembly seat 13 on one side of the locking valve 16 is sealed by a plug. The cooling oil entering one side of the locking valve 16 passes through the opened locking valve 16 and enters the cooling oil flow pipe 17 and the annular oil guide pipe 18, and enters the one-way valve 15 on the other side, and flows back into the intermediate oil guide tank 10 at this position, thereby realizing the circulation of the cooling oil.

[0039] An assembly frame 19 is fixedly installed on the outer wall of the outer protective shell 1, and a rectangular hollow groove 1901 is provided on the assembly frame 19. A plurality of spaced-apart grooves 1902 are also provided on the assembly frame 19. A rectangular heat dissipation groove 1903 is also provided on the assembly frame 19. A docking thread groove 1904 is provided on the rectangular hollow groove 1901. The assembly frame 19 is used for the installation of the outer protective shell 1, and the docking thread groove 1904 on the assembly frame 19 is used for docking installation. Bolts are installed in the docking thread groove 1904 to realize the assembly of the assembly frame 19 and the base. The design of the rectangular hollow groove 1901, the spaced-apart groove 1902 and the rectangular heat dissipation groove 1903 can reduce the weight of the assembly frame 19. At the same time, the reduction in the weight of the assembly frame 19 can ensure that the heat on the assembly frame 19 is better discharged, and the installation lock A sealing plug is installed on the rectangular assembly seat 13 on one side of the stop valve 16, and an injection pipe for injecting cooling oil is installed on the rectangular assembly seat 13 on which the one-way valve 15 is installed. The cooling oil is injected into the rectangular assembly seat 13 through the injection pipe. After the injection is completed, the hydraulic press is reinstalled at this position to provide power for the flow of cooling oil in the side oil guide pipe 11. The cooling oil entering the intermediate oil guide tank 10 flows along the channel in the intermediate oil guide tank 10 and enters the side oil guide pipes 11 on both sides. The cooling oil entering the side oil guide pipes 11 on both sides continues to flow into the vertical oil guide pipe 12. The cooling oil entering the vertical oil guide pipe 12 flows from the cooling oil discharge port 1201 into the annular oil guide groove 901, and takes away the heat on the arc-shaped oil guide plate 9 and the inner assembly pipe 2 through the heat dissipation fins 14 on the annular oil guide groove 901.

[0040] An annular guide plate 20 is arranged at the rear position of the inner wall of the rectangular assembly seat 13, and a plurality of rectangular connecting strips 21 are distributed in an annular array on the outer wall of the annular guide plate 20 with the central axis of the annular guide plate 20 as the array center. An annular guide plate 22 is fixedly installed on the inner wall of the annular guide plate 20, and an annular diverter pipe 23 is fixedly installed on the inner wall of the annular guide plate 22. A gap is left between the annular guide plate 20 and the inner wall of the rectangular assembly seat 13. The annular guide plate 20 guides and diverts the input of the cooling oil, and limits the inflow speed of the cooling oil. The annular diverter pipe 23 has a guiding effect, diverts the cooling oil, and the sum is gathered together to achieve mixing and diversion of the cooling oil, which has the effect of cooling the cooling oil.

[0041] A plurality of V-shaped drainage grooves 2201 are formed on the annular drainage plate 22 .

[0042] A refrigeration ring 24 is movably installed in the rectangular assembly seat 13, and a condenser 25 is provided on one side of the refrigeration ring 24 located in the rectangular assembly seat 13. A docking pipe 26 is fixedly installed on the outer wall of the refrigeration ring 24. The condenser 25 on the back of the refrigeration ring 24 is in contact with the intermediate oil guide tank 10. The intermediate oil guide tank 10 is cooled by the condenser 25, thereby achieving cooling of the cooling oil in the intermediate oil guide tank 10.

[0043] Working principle: The first step: the arc-shaped middle plate 8 and the arc-shaped oil guide plate 9 are installed outside the inner assembly tube 2 and are located between the two limit end covers 3. Then, the outer protective shell 1 is sleeved outside the structure composed of the inner assembly tube 2 and the limit end cover 3, and the movable end cover 6 is installed on the top and bottom of the outer protective shell 1. The protruding part on the movable end cover 6 is engaged with the corresponding position on the inner positioning tube 4. The second docking buckle 601 on the movable end cover 6 and the first docking buckle 101 on the outer protective shell 1 correspond to each other, and are connected and fixed by connecting bolts 7 to form the motor shell body.

[0044] The second step: install a sealing plug on the rectangular assembly seat 13 on one side of the locking valve 16, and install an injection pipe for injecting cooling oil on the rectangular assembly seat 13 on which the one-way valve 15 is installed. The cooling oil is injected into the rectangular assembly seat 13 through the injection pipe. After the injection is completed, the hydraulic press is reinstalled at this position to provide power for the cooling oil flow in the side oil guide pipe 11. The cooling oil entering the rectangular assembly seat 13 contacts the annular guide plate 20. The V-shaped drainage groove 2201 on the annular guide plate 20 guides the cooling oil to ensure that the cooling oil flows on the surface of the annular guide plate 20, part of it enters the annular diverter pipe 23, and the other part enters the gap of the structure composed of the annular guide plate 20 and the rectangular assembly seat 13 to realize the diversion of the cooling oil. The cooling oil enters the intermediate oil guide tank 10 more evenly, and the cooling oil entering the intermediate oil guide tank 10 flows along the channel in the intermediate oil guide tank 10, enters the side oil guide pipes 11 on both sides, and enters The cooling oil entering the side oil guide pipes 11 on both sides continues to flow into the vertical oil guide pipe 12. The cooling oil entering the vertical oil guide pipe 12 flows from the cooling oil discharge port 1201 into the annular oil guide groove 901, and takes away the heat on the arc oil guide plate 9 and the inner assembly pipe 2 through the heat dissipation fins 14 on the annular oil guide groove 901. The cooling oil entering the annular oil guide groove 901 enters the side oil guide pipe 11 and the middle oil guide bin 10 on the other side. The refrigeration ring 24 works to drive the condenser 25 to cool. The condenser 25 cools the rectangular assembly seat 13 and the middle oil guide bin 10 at this position, thereby cooling the cooling oil in the middle oil guide bin 10 at this position. The cooling oil entering the middle oil guide bin 10 on the other side flows along the locking valve 16, the cooling oil flow pipe 17, the annular oil guide pipe 18, and the one-way valve 15. The cooling oil passing through the one-way valve 15 flows back into the side oil guide pipe 11, realizing the circulation of the cooling oil and taking away the heat.

[0045] Step 3: Pipes are installed on both rectangular assembly seats 13, and the locking valve 16 is locked and sealed. The oil pipeline provides power for the transportation of cooling oil. The cooling oil enters the middle oil guide tank 10, passes through the side oil guide pipe 11 and the vertical oil guide pipe 12, and flows in the annular oil guide groove 901, and enters the middle oil guide tank 10 on the other side. The cooling oil entering this position is discharged through the oil outlet pipe on the rectangular assembly seat 13, thereby realizing another circulation mode of the cooling oil and taking away the heat.

[0046] Step 4: When the motor housing is installed on the base, the docking threaded groove 1904 on the assembly frame 19 is aligned with the corresponding screw hole on the base, and the assembly frame 19 is installed by installing the bolts. After the assembly frame 19 is installed, the rectangular hollow groove 1901, the spaced-apart groove 1902 and the rectangular heat dissipation groove 1903 on the assembly frame 19 can all play a heat dissipation effect.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Oil-cooled three-in-one motor housing, characterized by: The invention comprises an outer protective shell (1), an inner assembly tube (2) being movably mounted in the outer protective shell (1), a limiting end cover (3) being fixedly mounted on the top and bottom of the inner assembly tube (2), an inner positioning tube (4) being fixedly mounted in the limiting end cover (3), a plurality of stators (5) being movably mounted in the inner positioning tube (4), and movable end covers (6) being arranged above and below the structure composed of the inner assembly tube (2) and the limiting end cover (3), the movable end cover (6) being movably engaged in the outer protective shell (1), The outer protective shell (1) is provided with first docking buckles (101) at corresponding positions on the top and bottom of the outer wall, the movable end cover (6) is provided with second docking buckles (601) at positions on the outer wall corresponding to the first docking buckles (101), a connecting bolt (7) is provided between the first docking buckle (101) and the second docking buckle (601) for fixing, the inner assembly tube (2) is movably provided with an arc-shaped intermediate plate (8) and an arc-shaped oil guide plate (9), and the arc-shaped intermediate plate (8) and the arc-shaped oil guide plate (9) form a structure located outside In the protective housing (1), the arc-shaped oil guide plate (9) is provided with a plurality of annular oil guide grooves (901), a middle oil guide bin (10) is provided at the center of the arc-shaped middle plate (8), side oil guide pipes (11) connected to the middle oil guide bin (10) are provided on both sides of the middle oil guide bin (10), a vertical oil guide pipe (12) is provided on the side of the side oil guide pipe (11) away from the middle oil guide bin (10), and the vertical oil guide pipe (12) is connected to the side oil guide pipe (11), and the arc-shaped oil guide plate (9) is provided with a plurality of annular oil guide grooves (901), a middle oil guide bin (10) is provided on the side of the side oil guide pipe (11) away from the middle oil guide bin (10), and the vertical oil guide pipe (12) is connected to the side oil guide pipe (11), and the arc-shaped oil guide plate (9) is provided with a middle oil guide bin (10), and the middle oil guide bin (10) is provided with a plurality of annular oil guide grooves (90 ... middle oil guide bin (10) is provided with a plurality of annular oil guide grooves (901), and the middle oil guide bin (10) is provided with a plurality of annular oil guide grooves (901), and the middle oil guide bin (10) is provided with a A vertical installation groove (902) for installing a vertical oil guide pipe (12) is vertically opened on the plate (9); a cooling oil discharge port (1201) is opened on the vertical oil guide pipe (12) at a position corresponding to the annular oil guide groove (901); a rectangular assembly seat (13) is arranged on the front and back sides of the outer protective shell (1); the rectangular assembly seat (13) corresponds to the position of the intermediate oil guide bin (10); and an oil inlet (1001) connected to the rectangular assembly seat (13) is opened on the intermediate oil guide bin (10).

2. The oil-cooled three-in-one motor housing according to claim 1, characterized in that: The inner assembly tube (2), the limiting end cover (3) and the inner positioning tube (4) are an integrally formed structure.

3. The oil-cooled three-in-one motor housing according to claim 2 is characterized in that: The inner positioning tube (4) is provided with a slot corresponding to the shape of the stator (5), and the plurality of stators (5) are distributed in a ring array with the central axis of the inner positioning tube (4) as the array center.

4. The oil-cooled three-in-one motor housing according to claim 3 is characterized in that: A portion that is engaged in the limiting end cover (3) is provided on a side of the movable end cover (6) close to the outer protective shell (1), and a side of the movable end cover (6) close to the outer protective shell (1) is in contact with the end of the inner positioning tube (4).

5. The oil-cooled three-in-one motor housing according to claim 4, characterized in that: A plurality of heat dissipation fins (14) are arranged in the annular oil guide groove (901) along the track of the annular oil guide groove (901), and the portion of the heat dissipation fins (14) located in the arc-shaped oil guide plate (9) fits against the outer wall of the inner assembly tube (2).

6. The oil-cooled three-in-one motor housing according to claim 5, characterized in that: A one-way valve (15) is provided at the bottom of one of the intermediate oil guide bins (10), and a locking valve (16) is provided at the bottom of the other intermediate oil guide bin (10). A cooling oil flow pipe (17) is provided at the bottom of each of the one-way valve (15) and the locking valve (16). An annular oil guide pipe (18) is provided between the two cooling oil flow pipes (17) for connection, and the annular oil guide pipe (18) is provided at a position of the outer wall of the inner assembly pipe (2) close to the bottom.

7. The oil-cooled three-in-one motor housing according to claim 6, characterized in that: An assembly frame (19) is fixedly mounted on the outer wall of the outer protective shell (1), the assembly frame (19) is provided with a rectangular hollow groove (1901), the assembly frame (19) is further provided with a plurality of spaced separation grooves (1902), the assembly frame (19) is further provided with a rectangular heat dissipation groove (1903), and the rectangular hollow groove (1901) is provided with a butt-jointing threaded groove (1904).

8. The oil-cooled three-in-one motor housing according to claim 7, characterized in that: An annular guide plate (20) is arranged at a rear position of the inner wall of the rectangular assembly seat (13); a plurality of rectangular connecting strips (21) are distributed in an annular array on the outer wall of the annular guide plate (20) with the central axis of the annular guide plate (20) as the array center; an annular guide plate (22) is fixedly mounted on the inner wall of the annular guide plate (20); an annular flow distribution pipe (23) is fixedly mounted on the inner wall of the annular guide plate (22); and a gap is left between the annular guide plate (20) and the inner wall of the rectangular assembly seat (13).

9. The oil-cooled three-in-one motor housing according to claim 8, characterized in that: The annular drainage plate (22) is provided with a plurality of V-shaped drainage grooves (2201).

10. The oil-cooled three-in-one motor housing according to claim 9, characterized in that: A refrigeration ring (24) is movably mounted in the rectangular assembly seat (13); a condenser tube (25) is provided on one side of the refrigeration ring (24) located in the rectangular assembly seat (13); and a docking tube (26) is fixedly mounted on the outer wall of the refrigeration ring (24).

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