Electrically-controlled integrated vector reluctance water-cooled motor

Abstract

The utility model relates to an electrically-controlled integrated vector reluctance water-cooled motor, which comprises a motor and a controller, the controller is arranged on the motor, electrically connected with the motor and used for controlling the motor to rotate, a water-cooled shell is arranged outside the motor, and a water channel is arranged between the water-cooled shell and the motor. The water cooling shell is provided with a water inlet and a water outlet which are connected with the water channel, and the water inlet is used for external water flow to flow in; a cooling pipe is arranged in the controller, one end of the cooling pipe extends out of the controller to be connected with the water outlet, and the other end of the cooling pipe extends out of the controller to be used for discharging water flow. The cooling pipe is arranged in the controller pipeline, the water channel on the motor is communicated with the cooling pipe, when the motor works, cooling liquid enters from the water inlet in the shell of the motor, passes through the water channel, flows through the cooling pipe in the controller from the water outlet and then flows out, and heat generated by a driving system in the controller is rapidly conducted out through the cooling water channel. Cooling liquid is recycled after heat exchange, and the temperature of the motor is effectively controlled.

Description

Technical Field

[0001] The utility model relates to the field of motors, and more specifically, to an electrically controlled integrated vector reluctance water-cooled motor. Background Art

[0002] The drive motor system integrates the motor, controller, reducer, etc. In order to further save space, the motor drive system will be designed as an integrated system, and the heat dissipation method of the drive system needs to be given special consideration. At present, the heat dissipation of motors and electronic controls in the market is mainly based on water cooling and oil cooling. Water cooling is to layout the cooling spiral water channel structure on the motor housing. The volume is relatively small, and the motor, battery, and electronic control can share a water cooling system, which is conducive to reducing costs. This cooling solution is simple, effective, safe and reliable in the motor and electronic control system. Oil cooling is suitable for vehicles with higher performance requirements. The motor has higher heat dissipation efficiency. Although the cost is higher, the structure is more compact. For motors with oil injection cooling, the housing does not need to be designed with water channels, fans, and air ducts.

[0003] Currently, the existing integrated electric-control water-cooled motors generally install the controller on the top of the motor, which is difficult to apply under the condition of limited installation space in the height direction. The mainstream motors in the market are permanent magnet synchronous motors, which have complex motor structures, and the motor and controller need to be connected with water channels, or the motor and controller housings need to be integrated, and the structure is more complex. If the controller is installed at the tail of the motor, it is difficult to arrange the water channels of the entire system. It is also necessary to consider the risk of leakage when the water cooling system works for a long time. In addition, some water-cooled motors or water-cooled electric controls adopt a split design, which makes the entire drive system larger. In addition, there are also a series of problems such as complex structure and low heat dissipation efficiency in water-cooled motors and water-cooled electric controls. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model proposes a technical solution for an electrically controlled integrated vector reluctance water-cooled motor, which connects the water channel on the motor and the cooling pipe in the controller to jointly water-cool the motor and the controller.

[0005] The technical solution of the utility model is as follows:

[0006] An electrically controlled integrated vector reluctance water-cooled motor comprises a motor and a controller, wherein the controller is arranged on the motor and electrically connected to the motor and is used to control the rotation of the motor, a water cooling shell is arranged outside the motor, a water channel is arranged between the water cooling shell and the motor, a water inlet and a water outlet connected to the water channel are arranged on the water cooling shell, and the water inlet is used to allow external water to flow in;

[0007] A cooling pipe is arranged in the controller, one end of the cooling pipe extends from the controller and is connected to the water outlet, and the other end of the cooling pipe extends from the controller for discharging water.

[0008] In summary, the above technical solution has the following beneficial effects: the cooling pipe of the present application is arranged in the controller pipeline, the water channel on the motor is connected to the cooling pipe, when the motor is working, the coolant enters from the water inlet on the motor housing, passes through the water channel, flows out from the water outlet through the cooling pipe in the controller, and the heat generated by the drive system in the controller is quickly discharged through the cooling water channel, and the coolant is circulated after heat exchange to effectively control the motor temperature. The motor can be widely used in high-performance speed regulation and precision control fields, such as the automotive industry, precision machinery manufacturing, etc. The drive motor integrates the motor, controller and water cooling system, etc. The motor, battery and electronic control share a water cooling system, which is conducive to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of a cooling pipe of an electronically controlled integrated vector reluctance water-cooled motor;

[0010] Figure 2 It is a schematic diagram of a motor cross-section of an electrically controlled integrated vector reluctance water-cooled motor;

[0011] Figure 3 It is a schematic diagram of an exploded view of an electronically controlled integrated vector reluctance water-cooled motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 10. Motor; 11. Casing; 12. Front cover; 13. Rear cover; 14. Sealing ring; 20. Controller; 21. Bottom shell; 22. Upper cover; 23. Connecting piece; 30. Water cooling shell; 31. Water inlet; 32. Water outlet; 40. Water channel; 50. Cooling pipe. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0015] like Figure 1-Figure 3As shown, an electrically controlled integrated vector reluctance water-cooled motor includes a motor 10 and a controller 20. The controller 20 is arranged on the motor 10 and electrically connected to the motor 10, and is used to control the rotation of the motor 10. A water-cooling shell 30 is arranged outside the motor 10, and a water channel 40 is opened between the water-cooling shell 30 and the motor 10. A water inlet 31 and a water outlet 32 ​​connected to the water channel 40 are opened on the water-cooling shell 30, and the water inlet 31 is used for external water to flow in; a cooling pipe 50 is arranged in the controller 20, one end of the cooling pipe 50 extends from the controller 20 and is connected to the water outlet 32, and the other end of the cooling pipe 50 extends from the controller 20 for discharging water. The cooling pipe 50 of the present application is arranged in the pipeline of the controller 20, and the water channel 40 on the motor 10 is connected to the cooling pipe 50. When the motor 10 is working, the coolant enters from the water inlet 31 on the housing 11 of the motor 10, passes through the water channel 40, and flows out from the water outlet 32 ​​through the cooling pipe 50 in the controller 20. The heat generated by the drive system in the controller 20 is quickly discharged through the cooling water channel 40. The coolant is circulated after heat exchange to effectively control the temperature of the motor 10. The motor 10 can be widely used in high-performance speed regulation and precision control fields, such as the automotive industry, precision machinery manufacturing, etc. The drive motor 10 integrates the motor 10, the controller 20 and the water cooling system, etc. The motor 10 and the battery and the electronic control share a water cooling system, which is conducive to reducing costs.

[0016] The motor 10 includes a housing 11, a front cover 12 and a rear cover 13. The water-cooling shell 30 is arranged around the housing 11 and fits with the housing 11. The front cover 12 is connected to the front end of the housing 11 and the front end of the water-cooling shell 30 respectively, and the rear cover 13 is connected to the rear end of the housing 11 and the rear end of the water-cooling shell 30 respectively. The housing 11 and the water-cooling shell 30 are both cylindrical and have the same height. The housing 11 is provided with necessary components of the motor 10 such as a stator, a rotor, and a main shaft. The stator is composed of stator teeth and a stator yoke; the rotor is composed of rotor teeth and a rotor yoke; the main shaft is used to connect the rotor and the bearing, and transmit the rotational force of the motor 10 to the external device to make the external device operate; the front cover 12 is provided with an opening for the rotor to extend out, and the rear cover 13 is provided with a fixing rotor bearing to limit the rotor. The degree of fit between the water-cooling shell 30 and the housing 11 does not require to be completely watertight, but only needs to allow most of the water to flow through the waterway 40.

[0017] Furthermore, a sealing ring 14 is provided on one side of the front cover 12 and the rear cover 13 facing the water-cooling shell 30 , and the sealing ring 14 can enhance the sealing effect of the front cover 12 and the rear cover 13 .

[0018] The water channel 40 is opened in the following two embodiments.

[0019] Embodiment 1: The water channel 40 is provided on the side of the housing 11 facing the water-cooled housing 11. The water channel 40 provided on the housing 11 allows the coolant to be closer to the components of the motor 10, thereby improving the cooling effect. The water channel 40 is provided in a spiral shape on the housing 11. The spirally provided water channel 40 allows the coolant to flow slowly along the water channel 40 on the housing 11 of the motor 10, thereby taking away more heat.

[0020] Embodiment 2: The water channel 40 is provided on the side of the water cooling shell 30 facing the housing 11. The water channel 40 provided on the water cooling shell 30 allows the water cooling shell 30 to be installed on the existing motor 10 housing 11 without additional processing of the existing motor 10 housing 11. The water channel 40 is provided in a spiral on the water cooling shell 30. The spirally provided water channel 40 allows the coolant to flow slowly along the water channel 40 on the motor 10 housing 11, thereby taking away more heat.

[0021] The controller 20 includes a bottom shell 21, an upper cover 22 and a connecting piece 23. A cooling pipe 50 is arranged in the bottom shell 21. One end of the cooling pipe 50 extends from the bottom shell 21 and is connected to the water outlet 32. The other end of the cooling pipe 50 extends from the bottom shell 21 for discharging water. The upper cover 22 is connected to the bottom shell 21 and is used to cover the bottom shell 21. One end of the connecting piece 23 is connected to the bottom shell 21, and the other end is connected to the rear upper cover 22. The bottom shell 21 is used to install the control element. The control element is electrically connected to the motor 10 and is used to drive the motor 10 to rotate. The upper cover 22 and the cover are detachably connected, so that the cover can be easily opened to repair the control element or the cooling pipe 50 in the bottom shell 21. The bottom shell 21 is connected to the rear upper cover 22 through the connecting piece 23, so that the controller 20 is located on one side of the housing 11, so that one end of the cooling pipe 50 extends from the controller 20 and is connected to the water outlet 32.

[0022] The upper cover 22 and the bottom shell 21 are detachably connected. The upper cover 22 and the bottom shell 21 can be easily disassembled by a snap connection, or can be installed with screws to achieve a detachable fixed connection.

[0023] The cooling pipe 50 is reciprocatingly arranged in the bottom shell 21. The cooling pipe 50 is reciprocatingly arranged in the bottom shell 21, which increases the flow path of the cooling pipe 50 in the bottom shell 21, thereby improving the heat dissipation effect of the cooling pipe 50 in the controller 20. The cooling pipe 50 can also be arranged in a spiral arrangement in the chassis or in other ways that can increase the length of the cooling pipe 50 in the controller 20. Preferably, the cooling pipe 50 is reciprocatingly arranged.

[0024] The motor 10 is a vector reluctance motor 10. The motor 10 used in this patent is a vector reluctance motor 10, which has a simple structure. Under the same performance, the vector reluctance motor 10 is smaller than the permanent magnet synchronous motor 10. Combined with the structural characteristics of the vector reluctance motor 10 itself, the motor 10 and the controller 20 are designed as an integrated unit, and the cooling spiral water channel 40 is designed in the motor 10 housing. The rear cooling water channel 40 is electrically controlled to form a passage, which can reduce space and improve the overall heat dissipation efficiency, thereby realizing an electrically controlled integrated vector reluctance water-cooled motor 10. The beneficial effects include:

[0025] 1. The vector reluctance motor 10 has a simple structure, high efficiency, and a rotor without permanent magnet design.

[0026] 2. The integrated design of the vector reluctance motor 10 and the electronic control has a more compact structure.

[0027] 3. The cooling spiral water channel 40 of the housing 11 of the motor 10 and the electronically controlled cooling water channel 40 form a passage.

[0028] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An electrically controlled integrated vector reluctance water-cooled motor, comprising a motor (10) and a controller (20), wherein the controller (20) is disposed on the motor (10) and electrically connected to the motor (10) and is used to control the rotation of the motor (10), characterized in that: A water cooling shell (30) is arranged outside the motor (10), a water channel (40) is provided between the water cooling shell (30) and the motor (10), a water inlet (31) and a water outlet (32) connected to the water channel (40) are provided on the water cooling shell (30), and the water inlet (31) is used for allowing external water to flow in; A cooling pipe (50) is arranged in the controller (20), one end of the cooling pipe (50) extends from the controller (20) and is connected to the water outlet (32), and the other end of the cooling pipe (50) extends from the controller (20) and is used to discharge water.

2. The electrically controlled integrated vector reluctance water-cooled motor according to claim 1, characterized in that: The motor (10) comprises a housing (11), a front end cover (12) and a rear end cover (13); the water cooling shell (30) is arranged around the housing (11) and is fitted to the housing (11); the front end cover (12) is respectively connected to the front end of the housing (11) and the front end of the water cooling shell (30); and the rear end cover (13) is respectively connected to the rear end of the housing (11) and the rear end of the water cooling shell (30).

3. The electrically controlled integrated vector reluctance water-cooled motor according to claim 2, characterized in that: A sealing ring (14) is provided on one side of the front cover (12) and the rear cover (13) facing the water-cooling shell (30).

4. The electrically controlled integrated vector reluctance water-cooled motor according to claim 2, characterized in that: The water channel (40) is opened on a side of the outer shell (11) facing the water-cooled outer shell (11).

5. The electrically controlled integrated vector reluctance water-cooled motor according to claim 4, characterized in that: The water channel (40) is spirally opened on the housing (11).

6. The electrically controlled integrated vector reluctance water-cooled motor according to claim 2, characterized in that: The water channel (40) is opened on a side of the water-cooling shell (30) facing the outer shell (11).

7. The electrically controlled integrated vector reluctance water-cooled motor according to claim 6, characterized in that: The water channel (40) is spirally opened on the water-cooling shell (30).

8. The electrically controlled integrated vector reluctance water-cooled motor according to claim 2, characterized in that: The controller (20) comprises a bottom shell (21), an upper cover (22) and a connecting piece (23); the cooling pipe (50) is arranged in the bottom shell (21); one end of the cooling pipe (50) extends from the bottom shell (21) and is connected to the water outlet (32); the other end of the cooling pipe (50) extends from the bottom shell (21) and is used to discharge water; the upper cover (22) is connected to the bottom shell (21) and is used to cover the bottom shell (21); one end of the connecting piece (23) is connected to the bottom shell (21), and the other end is connected to the rear end cover (13).

9. The electrically controlled integrated vector reluctance water-cooled motor according to claim 8, characterized in that: The cooling pipe (50) is reciprocatingly arranged in the bottom shell (21).

10. An electrically controlled integrated vector reluctance water-cooled motor according to any one of claims 1 to 9, characterized in that: The motor (10) is a vector reluctance motor (10).

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