Stator support, motor and aircraft

Abstract

The utility model discloses a stator support, a motor and an aircraft, the stator support comprises a cylinder body, and an accommodating cavity used for accommodating a motor shaft is formed in the cylinder body; a plurality of cooling water channels which are arranged in the circumferential direction of the barrel at intervals are arranged in the side wall of the barrel, and the cooling water channels are connected in series; and each cooling water channel comprises at least two water channel branches which are arranged in parallel. According to the utility model, the cooling water channel is arranged on the stator bracket, and cooling water is introduced to cool the motor without being influenced by the external environment, so that the consistency and the stability of heat dissipation can be ensured; moreover, the plurality of water channel branches are arranged in the cooling water channel, so that the heat exchange area can be effectively increased, and the heat dissipation efficiency is improved. Meanwhile, an open type air-cooling heat dissipation mode is cancelled, and an air-cooling heat dissipation channel does not need to be designed in the accommodating cavity, so that the size of the motor is reduced, the motor cavity forms a closed space, and external impurities are prevented from entering the accommodating cavity to influence the operation of the motor.

Description

Technical Field

[0001] The utility model relates to the field of aircraft, and in particular to a stator bracket, a motor and an aircraft. Background Art

[0002] In the design of vertical take-off and landing aircraft, the heat dissipation of the motor is particularly critical. Due to the space limitations and special working conditions of these aircraft, traditional air cooling is widely used. Air cooling relies on the outside air entering the motor and exchanging heat with the heat dissipation ribs on the stator bracket to achieve heat dissipation.

[0003] However, the heat exchange area of ​​air cooling is relatively small, which limits the heat conduction rate from the inside of the motor, resulting in low heat dissipation efficiency. In addition, since the temperature and fluidity of the outside air will change, it will affect the consistency and stability of heat dissipation, further reducing the heat dissipation effect. Utility Model Content

[0004] The embodiments of the utility model provide a stator bracket, a motor and an aircraft to solve the problems of low heat dissipation efficiency and unstable heat dissipation of air cooling.

[0005] Specifically, the utility model provides a stator bracket, including a cylinder, in which a housing cavity for accommodating a motor shaft is formed; a plurality of cooling water channels arranged at intervals along the circumference of the cylinder are arranged in the side wall of the cylinder, and the plurality of cooling water channels are arranged in series; each of the cooling water channels includes at least two water channel branches arranged in parallel.

[0006] Optionally, the cylinder includes a first shell, a second shell and a connecting block, the first shell is coaxially sleeved outside the second shell, and the two ends of the first shell are connected to the two ends of the second shell through the connecting block to enclose a closed water channel structure between the second shell and the first shell.

[0007] Optionally, the cylinder further includes a plurality of reversing ribs, wherein the reversing ribs are disposed between the first shell and the second shell, and the plurality of reversing ribs are spaced and staggered along the circumference of the cylinder to separate the water channel into a plurality of cooling water channels that are connected in sequence.

[0008] Optionally, the reversing ribs include a first rib and a second rib; the first ribs and the second ribs are arranged alternately;

[0009] The first end of each of the first ribs is in the same plane as the first end of the first shell, and the second end of each of the first ribs is spaced apart from the second end of the first shell;

[0010] The first end of each of the second ribs is spaced apart from the first end of the first shell, and the second end of each of the second ribs is in the same plane as the second end of the first shell.

[0011] Optionally, the cylinder also includes a plurality of diverter ribs, and one diverter rib is arranged in each cooling water channel; both ends of the diverter rib are spaced apart from the first end and the second end of the first shell, and the diverter rib is spaced apart from the first rib and the second rib to separate the cooling water channel into two water channel branches.

[0012] Optionally, the cylinder also includes a plurality of diverter ribs, and at least two of the diverter ribs are arranged in each cooling water channel; both ends of each diverter rib are spaced apart from the first end and the second end of the first shell; the diverter ribs in the cooling water channel are spaced apart, and the diverter ribs are spaced apart from the first rib and the second rib.

[0013] Optionally, the first ends of two adjacent first ribs are connected to one connecting block; and the second ends of two adjacent second ribs are connected to one connecting block.

[0014] Optionally, the cylinder also includes a water baffle, which is arranged between the first shell and the second shell, and both ends of the water baffle are connected to the connecting block to separate the water channel, and make the two cooling water channels located on both sides of the water baffle form end water channels, one of the end water channels is connected to a water inlet pipe, and the other end water channel is connected to a water outlet pipe.

[0015] The utility model also provides a motor, comprising a motor shaft, a stator and a stator bracket as described in any one of the above items; the motor shaft is coaxially arranged in the accommodating cavity, and the stator is arranged on the stator bracket.

[0016] The utility model also provides an aircraft, comprising the above-mentioned motor.

[0017] The beneficial effects of the utility model are:

[0018] The utility model is provided with a cooling water channel on the stator bracket, and cooling water is introduced to dissipate heat for the motor, which is not affected by the external environment, so the consistency and stability of heat dissipation can be ensured; and, since multiple water channel branches are provided in the cooling water channel, the heat exchange area can be effectively increased and the heat dissipation efficiency can be improved. At the same time, since the open air-cooling heat dissipation method is eliminated, it is not necessary to design an air-cooling heat dissipation channel in the accommodating cavity, which not only reduces the size of the motor, but also forms a closed space in the motor cavity, preventing external debris from entering the accommodating cavity and affecting the operation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is a schematic partial cross-sectional view of a motor in one embodiment of the utility model;

[0021] Figure 2 It is a schematic structural diagram of the water channel structure of the stator support in one embodiment of the utility model;

[0022] Figure 3 is a schematic structural diagram of a stator bracket in one embodiment of the utility model;

[0023] Figure 4 is a schematic structural diagram of a stator bracket in one embodiment of the utility model;

[0024] Figure 5 is a schematic structural diagram of a stator bracket in one embodiment of the utility model;

[0025] Figure 6 It is a schematic structural diagram of a stator bracket in one embodiment of the utility model.

[0026] In the figure: 100, cylinder, 110, first shell, 120, second shell, 130, connecting block, 140, reversing channel rib, 150, diverter channel rib, 200, accommodating chamber, 300, water channel structure, 310, cooling water channel, 311, water channel branch, 410, water inlet pipe, 420, water outlet pipe. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Figure 1 is a schematic partial cross-sectional view of a motor in an embodiment of the utility model, such as Figure 1 As shown, and refer to Figures 2 to 6 The embodiment of the utility model provides a stator bracket, including a cylinder 100, in which a receiving cavity 200 for receiving a motor shaft is formed; a plurality of cooling water channels 310 are arranged at intervals along the circumference of the cylinder 100 in the side wall of the cylinder 100, and the plurality of cooling water channels 310 are arranged in series; each of the cooling water channels 310 includes at least two water channel branches 311 arranged in parallel.

[0031] The embodiment of the utility model sets a cooling water channel 310 on the stator bracket, and passes cooling water to dissipate heat for the motor, which is not affected by the external environment, so that the consistency and stability of heat dissipation can be ensured; and, since multiple water channel branches 311 are set in the cooling water channel 310, the heat exchange area is increased to improve the heat dissipation efficiency. At the same time, since the open air-cooling heat dissipation method is eliminated, it is not necessary to design an air-cooling heat dissipation channel in the accommodating cavity 200, which not only reduces the size of the motor, but also forms a closed space in the motor cavity, preventing external debris from entering the accommodating cavity 200 and affecting the operation of the motor.

[0032] like Figures 2 to 6As shown, in one embodiment of the utility model, the cylinder 100 includes a first shell 110, a second shell 120 and a connecting block 130, the first shell 110 is coaxially sleeved outside the second shell 120, and the two ends of the first shell 110 and the two ends of the second shell 120 are connected through the connecting block 130, so as to enclose a closed water channel structure 300 between the second shell 120 and the first shell 110. Further, the cylinder 100 also includes a plurality of reversing ribs 140, which are arranged between the first shell 110 and the second shell 120, and the plurality of reversing ribs 140 are spaced and staggered along the circumference of the cylinder 100, so as to separate the water channel into a plurality of cooling water channels 310 that are connected in sequence.

[0033] The embodiment of the utility model provides a plurality of reversing ribs 140 so that the separated plurality of cooling water channels 310 extend in an S shape, thereby increasing the heat exchange area and improving the heat dissipation efficiency. In addition, the provided reversing ribs 140 can play a connecting role between the first housing 110 and the second housing 120, thereby improving the rigidity and strength of the stator bracket.

[0034] Specifically, the reversing rib 140 includes a first rib and a second rib; the first rib and the second rib are arranged alternately; the first end of each of the first ribs is in the same plane as the first end of the first shell 110, and the second end of each of the first ribs is spaced apart from the second end of the first shell 110; the first end of each of the second ribs is spaced apart from the first end of the first shell 110, and the second end of each of the second ribs is in the same plane as the second end of the first shell 110.

[0035] like Figure 4 , Figure 5 As shown, in one embodiment of the utility model, the cylinder 100 further includes a plurality of flow channel ribs 150, and each cooling water channel 310 is provided with a flow channel rib 150; both ends of the flow channel rib 150 are spaced apart from the first end and the second end of the first shell 110, and the flow channel rib 150 is spaced apart from the first rib and the second rib to separate the cooling water channel 310 into two water channel branches 311. In this way, each cooling water channel 310 can be separated into two water channel branches 311 arranged in parallel, further increasing the heat exchange area, improving the heat dissipation efficiency, and improving the rigidity and strength of the stator bracket.

[0036] In an alternative embodiment of the utility model, the cylinder 100 further includes a plurality of manifold ribs 150, and at least two manifold ribs 150 are disposed in each cooling water channel 310; both ends of each manifold rib 150 are spaced apart from the first end and the second end of the first shell 110; the manifold ribs 150 in the cooling water channel 310 are spaced apart from each other, and the manifold ribs 150 are spaced apart from the first rib and the second rib. In this way, a plurality of water channel branches 311 can be formed in the cooling water channel 310, further improving the rigidity and strength of the stator support.

[0037] Specifically: Figure 5 As shown, two of the diverter ribs 150 are provided in each of the cooling water channels 310 to divide the cooling water channels 310 into three water channel branches 311. Alternatively, three of the diverter ribs 150 are provided in each of the cooling water channels 310 to divide the cooling water channels 310 into four water channel branches 311. Alternatively, n (n is an integer greater than 3) of the diverter ribs 150 are provided in each of the cooling water channels 310 to divide the cooling water channels 310 into n+1 water channel branches 311.

[0038] In one embodiment of the present invention, the first ends of two adjacent first ribs are connected to one of the connection blocks 130; the second ends of two adjacent second ribs are connected to one of the connection blocks 130. During processing, the first shell 110, the second shell 120, the flow dividing channel ribs 150 and the reversing channel ribs 140 are integrally formed to form welding grooves between the reversing channel ribs 140, and then the connection blocks 130 are connected by friction welding to form a closed water channel structure 300.

[0039] In one embodiment of the utility model, the cylinder 100 also includes a water baffle, which is arranged between the first shell 110 and the second shell 120, and both ends of the water baffle are connected to the connecting block 130 to separate the water channel, and make the two cooling water channels 310 located on both sides of the water baffle form end water channels, one of the end water channels is connected to the water inlet pipe 410, and the other end water channel is connected to the water outlet pipe 420.

[0040] When in use, cooling water enters the cooling water channel 310 through the water inlet pipe 410, flows in an S-shape among the plurality of cooling water channels 310 along the circumference of the cylinder 100, and finally flows out from the water outlet pipe 420 at the bottom of the stator bracket.

[0041] The utility model also provides a motor, comprising a motor shaft, a stator and a stator bracket as in any embodiment, so as to have all the effects of the stator bracket. The motor shaft is coaxially arranged in the accommodating cavity 200, and the stator bracket is arranged on the stator bracket.

[0042] The utility model also provides an aircraft, comprising the motor in the above embodiment, so as to have all the effects of the motor.

[0043] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such 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, and should be included in the protection scope of the present invention.

Claims

1. A stator bracket, characterized in that: It comprises a cylinder body, in which a receiving cavity for receiving a motor shaft is formed; a plurality of cooling water channels arranged at intervals along the circumference of the cylinder body are arranged in the side wall of the cylinder body, and the plurality of cooling water channels are arranged in series; each of the cooling water channels comprises at least two water channel branches arranged in parallel.

2. The stator support according to claim 1, characterized in that: The cylinder includes a first shell, a second shell and a connecting block. The first shell is coaxially sleeved outside the second shell. The two ends of the first shell are connected to the two ends of the second shell through the connecting block to enclose a closed water channel structure between the second shell and the first shell.

3. The stator support according to claim 2, characterized in that: The cylinder also includes a plurality of reversing ribs, which are arranged between the first shell and the second shell. The plurality of reversing ribs are spaced and staggered along the circumference of the cylinder to separate the water channel into a plurality of cooling water channels that are connected in sequence.

4. The stator support according to claim 3, characterized in that: The reversing ribs include a first rib and a second rib; the first rib and the second rib are arranged alternately; The first end of each of the first ribs is in the same plane as the first end of the first shell, and the second end of each of the first ribs is spaced apart from the second end of the first shell; The first end of each of the second ribs is spaced apart from the first end of the first shell, and the second end of each of the second ribs is in the same plane as the second end of the first shell.

5. The stator support according to claim 4, characterized in that: The cylinder also includes a plurality of diverter ribs, one of which is disposed in each cooling water channel; both ends of the diverter rib are spaced apart from the first end and the second end of the first shell, and the diverter rib is spaced apart from the first rib and the second rib to separate the cooling water channel into two water channel branches.

6. The stator support according to claim 4, characterized in that: The cylinder also includes a plurality of diverter ribs, and at least two of the diverter ribs are arranged in each cooling water channel; both ends of each diverter rib are spaced apart from the first end and the second end of the first shell; the diverter ribs in the cooling water channel are spaced apart from each other, and the diverter ribs are spaced apart from the first rib and the second rib.

7. The stator support according to claim 4, characterized in that: The first ends of two adjacent first ribs are connected to one of the connection blocks; and the second ends of two adjacent second ribs are connected to one of the connection blocks.

8. The stator support according to claim 3, characterized in that: The cylinder also includes a water baffle, which is arranged between the first shell and the second shell. Both ends of the water baffle are connected to the connecting block to separate the water channel and make the two cooling water channels located on both sides of the water baffle form end water channels, one of the end water channels is connected to a water inlet pipe, and the other end water channel is connected to a water outlet pipe.

9. A motor, characterized in that: It comprises a motor shaft, a stator and a stator bracket according to any one of claims 1 to 8; the motor shaft is coaxially arranged in the accommodating cavity, and the stator is arranged on the stator bracket.

10. An aircraft, characterized in that: Comprising the motor as claimed in claim 9.

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