Casing for motor, motor assembly and vehicle

Abstract

The utility model relates to the technical field of vehicles, particularly provides a motor casing, a motor assembly and a vehicle, and aims to solve the problem that the motor casing in the prior art is integrally formed and cannot meet the heat dissipation requirements of motors in different projects. The casing for the motor comprises an inner casing, an outer casing and a water retaining strip, the inner casing is detachably sleeved with the outer casing, a liquid inlet and a liquid outlet are formed in the outer casing, the water retaining strip is detachably arranged on the outer surface of the inner casing, a water channel is formed among the inner casing, the outer casing and the water retaining strip, one end of the water channel is communicated with the liquid inlet, and the other end of the water channel is communicated with the liquid outlet. And the other end of the water channel is communicated with the liquid outlet. The inner shell and the outer shell can be detachably connected, the water retaining strips and the inner shell can be detachably connected, the size, the number and the position of the water retaining strips can be flexibly adjusted, and therefore the shape and the width of the water channel can be controlled, and the heat dissipation requirements of the motor in different projects can be met.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and specifically provides a housing for a motor, a motor assembly, and a vehicle. Background Art

[0002] In existing designs, automotive motors typically have a casing with water channels within it. Coolant within these channels removes heat from the motor, thereby cooling it. Typically, the casing consists of inner and outer shells and a water barrier, which are integrally produced using processes such as stretching. Because different projects have varying motor cooling requirements, the required water channel specifications also vary. Therefore, a casing formed by integrally stretching the inner and outer shells and water barrier is not universally applicable. Summary of the Invention

[0003] The present application aims to solve the above technical problem, that is, to solve the problem that the motor housing in the prior art that is formed in one piece cannot meet the heat dissipation requirements of motors of different projects.

[0004] The present application provides a casing for a motor, comprising: an inner casing; an outer casing, detachably mounted on the inner casing, the outer casing being provided with a liquid inlet and a liquid outlet; a water retaining bar, detachably mounted on the outer surface of the inner casing, a water channel being formed between the inner casing, the outer casing and the water retaining bar, one end of the water channel being connected to the liquid inlet, and the other end of the water channel being connected to the liquid outlet.

[0005] In the above optional technical solution for the casing of the motor, the water retaining bar is connected to the inner casing by bolts; or the inner casing is provided with a groove, and the water retaining bar is pressed into the groove by the outer casing.

[0006] In the above-mentioned optional technical solution for the casing of the motor, the water retaining bar is arranged in a long strip shape and is provided in plurality, each of the water retaining bar extends along the axial direction of the inner shell, and the plurality of water retaining bars surround the inner shell along the circumference of the inner shell, part of the plurality of water retaining bars is a first water retaining bar, one end of the first water retaining bar is aligned with the axial first end of the inner shell, another part of the plurality of water retaining bars is a second water retaining bar, one end of the second water retaining bar is aligned with the axial second end of the inner shell, and the first water retaining bar and the second water retaining bar are spaced apart so that the water channel surrounds the inner shell in a curved shape.

[0007] In the above-mentioned optional technical solution for the casing of the motor, a first annular boss is provided at the axial first end of the inner casing, and the first water retaining strip abuts against the first annular boss; a second annular boss is provided at one end of the outer casing connected to the axial second end of the inner casing, and the second water retaining strip abuts against the second annular boss.

[0008] In the above-mentioned optional technical solution for the casing of the motor, one of the multiple water retaining bars is the third water retaining bar, the two ends of the third water retaining bar are respectively abutted against the first annular boss and the second annular boss, and the liquid inlet and the liquid outlet are arranged on both sides of the third water retaining bar along the circumference of the outer shell.

[0009] In the above optional technical solution for the casing of the motor, the liquid inlet and the liquid outlet are arranged at the same axial end of the outer shell or at two axial ends of the outer shell.

[0010] In the optional technical solution of the above-mentioned motor casing, one end of the first water retaining bar away from the first annular boss is set as a cambered surface; and / or one end of the second water retaining bar away from the second annular boss is set as a cambered surface.

[0011] In the above optional technical solution for the casing of the motor, the inner casing and the outer casing are welded by rotational friction.

[0012] The present application also provides a motor assembly, comprising a motor body and a housing for the motor according to any one of the above technical solutions, wherein the housing is sleeved on the outside of the motor body.

[0013] The present application also provides a vehicle, comprising the motor assembly in the above technical solution.

[0014] When adopting the above-mentioned technical solution, the present application can detachably connect the inner shell and the outer shell, and detachably connect the water retaining bar to the inner shell, so as to flexibly adjust the size, quantity and position of the water retaining bar, thereby controlling the shape and width of the water channel. The shape and width of the water channel are different, and the heat dissipation effect of the water channel is also different. Therefore, the size, quantity and position of the water retaining bar are adjusted according to the heat dissipation requirements of the motor in different projects, so as to meet the heat dissipation requirements of the motor in different projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0016] The preferred embodiments of the present application are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of a housing for a motor of the present application;

[0018] Figure 2 yes Figure 1 Schematic diagram of the disassembly of the middle case;

[0019] Figure 3 This is a schematic diagram of the splitting when the liquid inlet and the liquid outlet of the casing are arranged at both ends of the outer shell;

[0020] Figure 4 This is a schematic diagram showing that the water retaining bar inside the casing of the present application is provided with a curved surface.

[0021] List of reference numerals:

[0022] 1. Casing; 11. Inner casing; 11a. First axial end of the inner casing; 11b. Second axial end of the inner casing; 111. First annular boss; 112. Groove; 113. Mounting point; 12. Outer casing; 121. Liquid inlet; 122. Liquid outlet; 123. Second annular boss; 13. Water retaining bar; 131. First water retaining bar; 1311. Bolt hole; 132. Second water retaining bar; 133. Third water retaining bar; 134. Arc surface; 14. Water channel; 15. Bolt; 16. Liquid inlet connector; 17. Liquid outlet connector. DETAILED DESCRIPTION

[0023] An exemplary embodiment will be described in detail herein, with examples shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms "first", "second", "third" and similar words used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms "one" or "an" and the like do not indicate a quantitative limitation, but rather indicate the presence of at least one. "Multiple" means two or more.

[0024] Unless otherwise specified, the orientations or positional relationships indicated by “inside”, “outside”, “height”, “axial” and “circumferential” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. "Connected" should be understood broadly and can mean fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] like Figure 1-Figure 3As shown, the present application provides a housing 1 for a motor. Figure 1 This is a schematic diagram of the entire housing 1. In order to see the specific structure of the housing 1, refer to Figure 2 、 Figure 3 Schematic diagram of the disassembly of the middle casing 1. The casing 1 includes an inner casing 11, an outer casing 12 and a water retaining bar 13. The outer casing 12 is detachably mounted on the inner casing 11. The outer casing 12 is provided with a liquid inlet 121 and a liquid outlet 122. The water retaining bar 13 is detachably mounted on the outer surface of the inner casing 11. A water channel 14 is formed between the inner casing 11, the outer casing 12 and the water retaining bar 13. One end of the water channel 14 is connected to the liquid inlet 121, and the other end of the water channel 14 is connected to the liquid outlet 122. The water channel 14 in the casing 1 is used to store flowing coolant. The coolant flows from the liquid inlet 121 into the water channel 14 and flows out of the water channel 14 from the liquid outlet 122. The heat of the motor is removed by the circulating flow of the coolant, thereby cooling the motor. The water channel 14 is surrounded by the inner shell 11, the outer shell 12 and the water retaining bar 13. The inner shell 11 and the outer shell 12 are detachably connected, and the water retaining bar 13 and the inner shell 11 are detachably connected. At this time, the shape and width of the water channel 14 can be controlled by flexibly adjusting the size, quantity and position of the water retaining bar 13. The shape and width of the water channel 14 are different, and the heat dissipation effect of the water channel 14 is also different. Therefore, the size, quantity and position of the water retaining bar 13 are adjusted according to the heat dissipation requirements of the motor in different projects to meet the heat dissipation requirements of the motor in different projects.

[0027] In one embodiment, if Figure 2 、 Figure 3 As shown, the water retaining bar 13 can be configured as a long strip and multiple water retaining bars 13 are provided, and each water retaining bar 13 extends along the axial direction of the inner shell 11. Figure 2 The middle x direction is the axial direction of the inner shell 11, the inner shell 11 is coaxial with the outer shell 12, and multiple water retaining strips 13 surround the inner shell 11 along the circumference of the inner shell 11. A part of the multiple water retaining strips 13 is a first water retaining strip 131, and one end of the first water retaining strip 131 is aligned with the axial first end 11a of the inner shell 11. Another part of the multiple water retaining strips 13 is a second water retaining strip 132, and one end of the second water retaining strip 132 is aligned with the axial second end 11b of the inner shell 11. The first water retaining strip 131 and the second water retaining strip 132 are spaced apart so that the waterway 14 surrounds the inner shell 11 in a curved shape.

[0028] At this time, there is a gap between the other end of the first water retaining bar 131 and the axial second end 11b of the inner shell 11, and there is a gap between the other end of the second water retaining platform and the axial first end 11a of the inner shell 11. Figure 2 The meandering water channel 14 shown in FIG. Figure 2The arrow direction of the water channel 14 is the flow direction of the coolant, the liquid inlet 121 is connected to the outside through the liquid inlet joint 16, and the liquid outlet 122 is connected to the outside through the liquid outlet joint 17. The coolant flows in from the liquid inlet 121 and flows out from the liquid outlet 122 along the water channel 14 according to the guidance of the first water retaining bar 131 and the second water retaining bar 132. The first water retaining bar 131 and the second water retaining bar 132 can not only form the water channel 14, but also guide the coolant in the water channel 14, so that the coolant can surround the entire inner shell 11 during the flow process, and then surround the motor in the inner shell 11 to improve the heat dissipation effect of the motor.

[0029] It should be noted that the water retaining bar 13 can be set to Figure 2 The long strip of water retaining bar 13, at this time, there are multiple water retaining bars 13. Of course, the water retaining bar 13 can also be set to other forms. For example, the water retaining bar 13 can also be set to a ring shape, and one end of the ring-shaped water retaining bar 13 abuts the axial first end 11a of the inner shell 11, and the other end of the ring-shaped water retaining bar 13 abuts the axial second end 11b of the inner shell 11. At this time, the water channel 14 formed is an annular water channel 14, and the coolant can also surround the entire inner shell 11 during the flow process. The above is not restrictive, and the shape of the water retaining bar 13 can be set according to the needs of technical personnel in this field, and the above are all within the protection scope of this application.

[0030] In one embodiment, if Figure 2 As shown, the axial first end 11a of the inner shell 11 is provided with a first annular boss 111, and the first water retaining bar 131 abuts against the first annular boss 111. The end of the outer shell 12 connected to the axial second end 11b of the inner shell 11 is provided with a second annular boss 123, and the second water retaining bar 132 abuts against the second annular boss 123. Since the first annular boss 111 and the second annular boss 123 have a certain height, in order to meet the installation requirements of the inner shell 11 and the outer shell 12, the first annular boss 111 and the second annular boss 123 are equal in height. Therefore, the height of the first annular boss 111 protruding from the inner shell 11 is the distance between the inner shell 11 and the outer shell 12, and is also the depth of the water channel 14. According to the size of the first annular boss 111, the height of the first water retaining bar 131 and the second water retaining bar 132 protruding from the inner shell 11 can also be designed. At the same time, the design of the first annular boss 111 and the second annular boss 123 can also prevent the coolant from leaking from the connection position between the inner shell 11 and the outer shell 12.

[0031] In one embodiment, if Figure 2As shown, one of the multiple water retaining bars 13 is the third water retaining bar 133. The two ends of the third water retaining bar 133 are respectively in contact with the first annular boss 111 and the second annular boss 123. The liquid inlet 121 and the liquid outlet 122 are arranged on both sides of the third water retaining bar 133 along the circumference of the outer shell 12. Due to the arrangement of the third water retaining bar 133, the flow path of the coolant is unique and can only be adjusted according to the following formula: Figure 2 The direction of the arrow in FIG. 1 is from the liquid inlet 121 to the liquid outlet 122 . This flow path is unique in that it can improve the heat dissipation efficiency of the coolant and prevent the coolant from flowing back.

[0032] In one embodiment, if Figure 2 As shown, in order to achieve the adjustment of the water retaining bar 13 and the different heat dissipation requirements of the motor in different projects, the water retaining bar 13 and the inner shell 11 can be connected by bolts 15. Taking the first water retaining bar 131 and the inner shell 11 connected by bolts 15 as an example, at this time, a bolt hole 1311 (such as Figure 4 As shown), the inner shell 11 shows the mounting point 113, and the bolt 15 passes through the bolt hole 1311 and is connected to the mounting point 113, thereby fixing the first water retaining bar 131 on the inner shell 11 to achieve the fixation of the first water retaining bar 131. The inner shell 11 and the first water retaining bar 131 connected by the bolt 15 can also be easily disassembled.

[0033] In one embodiment, if Figure 2 As shown, the inner shell 11 can also be provided with a groove 112, and the water retaining bar 13 is pressed into the groove 112 by the outer shell 12. Taking the third water retaining bar 133 being provided in the groove 112 as an example, at this time, it is necessary to reserve a groove 112 suitable for placing the third water retaining bar 133 in the inner shell 11. The cooperation between the groove 112 and the third water retaining bar 133 makes it more convenient to position the third water retaining bar 133.

[0034] It should be noted that the water retaining bar 13 and the inner shell 11 can both be connected by bolts 15, and can also be connected by setting a groove 112 in the inner shell 11 so that the outer shell 12 presses the water retaining bar 13 into the groove 112, or a groove 112 can be set in the inner shell 11 and the water retaining bar 13 can be clamped into the groove 112. Of course, it can also be partially connected by bolts 15, partially pressed and partially clamped, and the water retaining bar 13 can also be set in the groove 112 and then further fixed with bolts 15. The above is not restrictive and can be set according to the needs of technical personnel in this field. The above are all within the scope of protection of this application.

[0035] In one embodiment, if Figure 2 As shown, the liquid inlet 121 and the liquid outlet 122 can be arranged at the same end of the outer shell 12 in the axial direction. Figure 3As shown, the liquid inlet 121 and the liquid outlet 122 can also be set at the two ends of the axial direction of the outer shell 12. Since different projects have different requirements for the setting positions of the liquid inlet 121 and the liquid outlet 122 of the housing 1, the user can set the liquid inlet 121 and the liquid outlet 122 at corresponding positions according to needs. For example, when a project requires the liquid inlet 121 and the liquid outlet 122 to be at the same end of the outer shell 12, choose to use Figure 2 When the liquid inlet 121 and the liquid outlet 122 are required to be at both ends of the outer shell 12, the outer shell 12 can be directly replaced. Figure 3 The outer shell 12 in the casing 1 is replaced, and the water retaining bar 13 is adjusted accordingly. At this time, there is no need to replace the entire casing 1 or re-open the mold. The outer shell 12 and casing 1 can be directly replaced, thereby saving cost and time.

[0036] In one embodiment, if Figure 2 As shown, one end of the first water retaining bar 131 away from the first annular boss 111 is set as an arc surface 134, and one end of the second water retaining bar 132 away from the second annular boss 123 is set as an arc surface 134, as shown in FIG. Figure 4 As shown, it is an enlarged view of the water retaining bar 13 provided with a curved surface 134. The setting of the curved surface 134 can reduce Figure 2 The axially bent water channel 14 in the cooling system reduces the flow resistance of the cooling liquid.

[0037] In one embodiment, the inner shell 11 and the outer shell 12 are welded by rotary friction welding. Rotary friction welding has high welding quality, high efficiency and energy saving, and is easy to operate, thereby saving installation time of the inner shell 11 and the outer shell 12.

[0038] In addition, the present application also provides a motor assembly, which has a housing 1 for a motor as described in any of the above embodiments, and the housing 1 is sleeved on the outside of the motor body.

[0039] The present application also provides a vehicle having the above-mentioned motor assembly.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A housing for a motor, characterized in that: include: inner shell; An outer shell is detachably mounted on the inner shell, and a liquid inlet and a liquid outlet are provided on the outer shell; A water retaining bar is detachably arranged on the outer surface of the inner shell, and a water channel is formed between the inner shell, the outer shell and the water retaining bar. One end of the water channel is connected to the liquid inlet, and the other end of the water channel is connected to the liquid outlet.

2. The housing for a motor according to claim 1, characterized in that: The water retaining strip is connected to the inner shell by bolts; or, The inner shell is provided with a groove, and the water retaining strip is pressed into the groove by the outer shell.

3. The housing for a motor according to claim 1 or 2, characterized in that: The water retaining bar is arranged in a long strip shape and is provided in plurality. Each of the water retaining bar extends along the axial direction of the inner shell, and the plurality of water retaining bars surround the inner shell along the circumferential direction of the inner shell. Some of the plurality of water retaining bars are first water retaining bars, one end of the first water retaining bar is aligned with the axial first end of the inner shell, and another part of the plurality of water retaining bars is second water retaining bar, one end of the second water retaining bar is aligned with the axial second end of the inner shell, and the first water retaining bar and the second water retaining bar are spaced apart so that the water channel surrounds the inner shell in a curved shape.

4. The housing for a motor according to claim 3, characterized in that: The inner shell is provided with a first annular boss at the first axial end thereof, and the first water retaining strip abuts against the first annular boss. The outer shell is provided with a second annular boss at one end connected to the inner shell at the second axial end thereof, and the second water retaining strip abuts against the second annular boss.

5. The housing for a motor according to claim 4, characterized in that: One of the multiple water retaining bars is a third water retaining bar, both ends of which are respectively in contact with the first annular boss and the second annular boss, and the liquid inlet and the liquid outlet are arranged on both sides of the third water retaining bar along the circumference of the outer shell.

6. The housing for a motor according to claim 4, characterized in that: The liquid inlet and the liquid outlet are arranged at the same end of the outer shell in the axial direction or at two ends of the outer shell in the axial direction.

7. The housing for a motor according to any one of claims 4 to 6, characterized in that: The end of the first water retaining strip away from the first annular boss is configured as a cambered surface; and / or, One end of the second water retaining strip away from the second annular boss is configured as a curved surface.

8. The housing for a motor according to claim 1, characterized in that: The inner shell and the outer shell are welded by rotational friction.

9. A motor assembly, characterized in that: The motor comprises a motor body and a housing for a motor according to any one of claims 1 to 8, wherein the housing is sleeved on the outside of the motor body.

10. A vehicle, characterized in that: The vehicle includes the motor assembly according to claim 9 .

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