Shell assembly and axial flux motor

Abstract

The utility model discloses a housing assembly and an axial flux motor, and the housing assembly comprises a motor housing which is provided with a cooling liquid pipeline; one side surface of the stator bottom plate is connected with a stator, and the edge of the other side surface is connected with a motor shell; one side face of the water channel guide plate is connected with the stator bottom plate, a sealed cooling liquid channel is formed between the water channel guide plate and the stator bottom plate, the cooling liquid channel is communicated with the cooling liquid pipeline, a gap is formed between the other side face of the water channel guide plate and the motor shell, and the gap is filled with a damping medium; and the bearing seat sequentially penetrates through and is connected with the motor shell, the water channel guide plate and the stator bottom plate in the axial direction. The purpose of weakening the vibration noise of the motor is achieved by forming the gap between the water channel guide plate and the motor shell and injecting the damping medium into the gap, and the overall noise reduction scheme is simple in structure, convenient to implement and assemble, low in process difficulty and low in noise reduction cost; and meanwhile, the consumption of metal materials is greatly reduced, the manufacturing efficiency is improved, and the motor material cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of walking-replacing motors, in particular to a housing component and an axial magnetic flux motor. Background Art

[0002] The main magnetic field and vibration transmission direction of the axial flux motor are mainly axial, and the existing axial flux motor has a low shell structure modal frequency, which is easy to resonate with the excitation source. The existing method of optimizing the noise transmission path of the axial flux motor often adopts the method of arranging multiple reinforcing ribs on the motor shell to strengthen the structural rigidity of the motor shell, so as to achieve the purpose of shifting the modal resonance frequency of the motor backward, thereby avoiding the resonance of the motor's common speed operating point.

[0003] However, arranging multiple reinforcing ribs on the motor housing can only slightly enhance the modal frequency of the housing and shift the resonance point backward. The axial flux motor housing structural damping is still low, and it is impossible to weaken the vibration energy transfer and vibration noise from the transmission path. In addition, adding reinforcing ribs will increase costs.

[0004] Therefore, how to provide a shell assembly to reduce vibration noise and reduce costs is a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content

[0005] In view of this, the utility model provides a housing assembly to reduce vibration noise and reduce costs. In addition, the utility model also provides an axial flux motor having the housing assembly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A housing assembly, comprising:

[0008] A motor housing, wherein a coolant pipeline is installed on the motor housing;

[0009] A stator base plate, one side of which is used to be connected to the stator, and an edge of the other side is connected to the motor housing;

[0010] A water channel guide plate, one side of which is connected to the stator bottom plate and forms a sealed coolant channel with the stator bottom plate, the coolant channel is communicated with the coolant pipeline, and a gap is formed between the other side of the water channel guide plate and the motor housing, and the gap is filled with a damping medium;

[0011] The bearing seat has a bearing chamber which is axially penetrated and used for installing a bearing. The bearing seat is axially penetrated and connected to the motor housing, the waterway guide plate and the stator bottom plate in sequence.

[0012] Preferably, in the above-mentioned housing assembly, the damping medium is one of silica gel, rubber, epoxy resin glue, damping oil, solid debris, acrylate polymer, acrylate copolymer and acrylate blend.

[0013] Preferably, in the above-mentioned housing assembly, the motor housing includes:

[0014] A first bottom plate, the first bottom plate has a first mounting hole penetrating axially, the bearing seat is installed in the first mounting hole, and there is a gap between the water channel guide plate and the first bottom plate;

[0015] A first side plate, the first side plate is integrally formed with the edge of the first bottom plate and forms a groove structure, and the water channel guide plate and the stator bottom plate are both installed in the groove structure;

[0016] The coolant pipeline is fixed on the first side plate, and the stator bottom plate is fixedly connected to the first side plate.

[0017] Preferably, in the above-mentioned housing assembly, the circumferential direction of the water channel guide plate has a lapping edge, the first bottom plate has a boss for lapping and mating with the lapping edge, and the water channel guide plate and the first bottom plate are limited by lapping through the lapping edge and the boss.

[0018] Preferably, in the above-mentioned housing assembly, the water channel guide plate is a metal stamping part with grooves, and the grooves form the coolant channel;

[0019] The water channel guide plate has a second mounting hole penetrating axially, and the bearing seat is installed in the second mounting hole.

[0020] Preferably, in the above-mentioned housing assembly, the stator bottom plate includes:

[0021] A second bottom plate, one side of the second bottom plate is used for connecting with the stator, and the other side is used for sealing connection with the side surface of the water channel guide plate with grooves, and the coolant channel is formed between the grooves and the second bottom plate; the second bottom plate has a third mounting hole axially, and the bearing seat is installed in the third mounting hole;

[0022] A second side plate, the second side plate is integrally formed with the edge of the second bottom plate and forms a groove structure, and the second side plate is fixedly connected to the motor housing.

[0023] Preferably, in the above-mentioned housing assembly, the second side plate has an avoidance notch for avoiding the installation of the coolant pipeline of the motor housing.

[0024] Preferably, in the above-mentioned housing assembly, the stator bottom plate is a stamping part and is stretched to form the second side plate;

[0025] and / or,

[0026] The motor housing is a non-metallic housing, and the coolant pipeline is welded to the motor housing.

[0027] Preferably, in the above-mentioned housing assembly, the bearing seat includes along the axial direction:

[0028] The first section, and the first section is fitted with the first mounting hole of the motor housing;

[0029] The limiting flange, the diameter of the limiting flange is larger than that of the first section, and the limiting flange is fitted with the second mounting hole;

[0030] The second section, the second section is fitted with the third mounting hole, and the diameter of the second section is smaller than that of the limiting flange.

[0031] An axial flux motor includes a housing assembly, wherein the housing assembly is the housing assembly described in any one of the above.

[0032] In the embodiment of the present utility model, a housing assembly is disclosed. By forming a gap between the water channel deflector and the motor housing and injecting a damping medium into the gap, the purpose of weakening the vibration and noise of the motor is achieved. The overall noise reduction scheme has a simple structure, is convenient for implementation and assembly, has a low process difficulty, and a low noise reduction cost. At the same time, it greatly reduces the consumption of metal materials, improves the manufacturing efficiency, and reduces the material cost of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic structural diagram of the housing assembly of the axial flux motor disclosed in the embodiment of the present utility model;

[0035] Figure 2 It is a front view of the housing assembly of the axial flux motor disclosed in the embodiment of the present utility model;

[0036] Figure 3 For Figure 2 The cross-sectional view in the A-A direction in

[0037] Figure 4 It is an exploded view of the housing assembly of the axial flux motor disclosed in the embodiment of the utility model;

[0038] Figure 5 It is a schematic structural diagram of the motor housing disclosed in the embodiment of the present utility model;

[0039] Figure 6 It is the front view of the bearing seat disclosed in the embodiment of the present utility model;

[0040] Figure 7 It is the assembly drawing of the water channel guide plate and the coolant pipeline disclosed in the embodiment of the present utility model;

[0041] Figure 8 It is the back structural schematic diagram of the water channel guide plate disclosed in the embodiment of the present utility model;

[0042] Figure 9 It is the back structural schematic diagram of the stator base plate disclosed in the embodiment of the present utility model. Detailed implementation manners

[0043] The present utility model discloses a housing assembly to weaken vibration noise and reduce costs. In addition, the present utility model also discloses an axial-flux motor having the above housing assembly.

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0045] Hereinafter, the terms "first" and "second" are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0046] The axial-flux motor is also called a "disc motor", which is a motor with the main magnetic field along the axis direction of the rotating shaft. Specifically, the radial dimensions of the stator core and the rotor core of the axial-flux motor are the same, but the lengths in the axial direction are different, and the stator and the rotor are assembled axially relative to each other, so that the vibration generated during the rotation of the rotor is along the axis of the axial-flux motor.

[0047] In view of the fact that the main magnetic field of the axial-flux motor and the vibration transmission direction are mainly axial, and the structural modal frequency of the existing axial-flux motor housing is relatively low, it is easy to resonate with the excitation source. The existing methods for optimizing the noise transmission path of the axial-flux motor often use multiple reinforcing ribs arranged on the motor housing to enhance the structural stiffness of the motor housing, so as to achieve the purpose of shifting the modal resonance frequency of the motor, and further avoid the resonance at the common rotational speed operating points of the motor.

[0048] However, the method of arranging multiple reinforcing ribs on the motor housing can only slightly increase the modal frequency of the housing and shift the resonance point. The structural damping of the axial flux motor housing is still relatively low, and it is impossible to weaken the vibration energy transmission and vibration noise from the transmission path. Moreover, the method of adding reinforcing ribs will increase the cost.

[0049] Based on the above problems, a housing assembly is disclosed in the present application. By optimizing the axial transmission path between the water channel guide plate and the motor housing (motor stator → water channel guide plate → motor housing), wherein there are no rigid connecting ribs between the motor housing and the water channel guide plate, and there are no contact points between them, forming an axial inner surrounding gap 5, so that the outer surface of the water channel guide plate becomes the main response surface for the vibration conduction of the axial flux motor stator, avoiding the axial vibration transmission of rigid structural parts, ensuring that the end surface of the vibration generated by the stator of the axial magnetic field motor passes through the outer surface of the water channel guide plate and is completely separated from the motor housing, thereby achieving acoustic decoupling structurally.

[0050] In addition, by injecting a damping medium into the gap 5 between the motor housing and the water channel guide plate, the damping of the transmission path between the motor water channel guide plate and the motor housing is further improved, and through the high-frequency vibration of the vibration response surface of the water channel guide plate in the viscous damping medium, a large amount of vibration energy is dissipated, achieving the purpose of weakening the motor vibration noise and optimizing the NVH performance of the motor.

[0051] Specifically, as shown in Figures 1 to 4 The housing assembly of the axial flux motor disclosed in the present application includes a motor housing 1, a stator bottom plate 3, a water channel guide plate 4, and a bearing seat 2.

[0052] Among them, the motor housing 1 is the outer shell structure of the axial flux motor. A stator and a rotor are installed inside the motor housing 1. For the installation method and arrangement method of the stator and the rotor, reference can be made to the stator and rotor of the existing axial flux motor, which are not specifically limited herein.

[0053] A coolant pipeline 15 is installed on the motor housing 1 of the present application. The coolant pipeline 15 includes an inlet pipe and an outlet pipe. The coolant pipeline 15 includes but is not limited to being a casting. The shape of the coolant pipeline 15 can be a bent pipe to change the directions of the inlet pipe and the outlet pipe, facilitating connection with the water supply device. The installation position of the coolant pipeline 15 can be set according to different needs.

[0054] The stator bottom plate 3 is used to install the stator. Specifically, one side surface of the stator bottom plate 3 is used to connect with the stator, and the edge of the other side surface of the stator bottom plate 3 is connected to the motor housing 1. It should be noted that the two side surfaces of the stator bottom plate 3 are opposite and are the two side surfaces along the axis of the stator bottom plate 3. In some embodiments, the stator bottom plate 3 is a circular plate member.

[0055] One side of the water channel deflector 4 is connected to the stator bottom plate 3, and a sealed coolant channel is formed between the water channel deflector 4 and the stator bottom plate 3. The coolant channel is communicated with the coolant pipeline 15. A gap 5 is formed between the other side of the water channel deflector 4 and the motor housing 1, and the gap 5 is filled with a damping medium.

[0056] The water channel deflector 4 is connected to the stator bottom plate 3, and a gap 5 is formed between the other side of the water channel deflector 4 and the motor housing 1. After the vibration of the stator bottom plate 3 is transmitted to the water channel deflector 4, the vibration can be prevented from continuing to be transmitted due to the existence of the gap 5, and the damping medium filled in the gap 5 can further increase the resistance of vibration transmission.

[0057] The above-mentioned bearing housing 2 has a bearing chamber for installing a bearing that penetrates axially. The bearing chamber is used to install a bearing to realize the installation of the output shaft and output the rotation of the rotor to the outside of the motor. The bearing housing 2 sequentially penetrates and connects the motor housing 1, the water channel deflector 4, and the stator bottom plate 3 along the axial direction. The size of the bearing housing 2 can be set according to different needs and is within the protection scope.

[0058] In the housing assembly of the axial flux motor in this application, by connecting one side of the water channel deflector 4 to the stator bottom plate 3, the outer surface of the water channel deflector 4 (i.e., the other side of the water channel deflector involved in the above embodiment) becomes the main response surface for the vibration conduction of the axial flux motor stator. A gap 5 is formed between the other side of the water channel deflector 4 and the motor housing 1, which avoids the axial transmission of the vibration of the water channel deflector 4 by rigid structural members, ensuring that the end face of the vibration generated by the stator of the axial magnetic field motor is separated from the motor housing 1 through the outer surface of the water channel deflector 4, thereby achieving acoustic decoupling in terms of structure and achieving the purpose of reducing vibration.

[0059] In addition, by injecting a damping medium into the gap 5 between the motor housing 1 and the water channel deflector 4, the damping of the transmission path between the motor water channel deflector 4 and the motor housing 1 is further improved, and through the high-frequency vibration of the other side of the water channel deflector 4 in the viscous damping medium, the vibration energy is greatly dissipated, achieving the purpose of weakening the motor vibration noise and optimizing the NVH performance of the motor.

[0060] In this application, by forming a gap 5 between the water channel deflector 4 and the motor housing 1 and injecting a damping medium into the gap 5, the purpose of weakening the motor vibration noise is achieved. The overall noise reduction scheme has a simple structure, is convenient for implementation and assembly, has a low process difficulty and a low noise reduction cost. At the same time, it greatly reduces the consumption of metal materials, improves the manufacturing efficiency, and reduces the motor material cost.

[0061] In some embodiments, the damping medium described above includes, but is not limited to, at least one of silica gel, damping oil, and rubber. Of course, it can also be epoxy resin glue or solid fragments, and can also be acrylate polymers, acrylate copolymers, or acrylate blends, as long as it is a viscous damping material. Taking the damping medium as rubber as an example, rubber is an elastic structure. When vibration is transmitted to the rubber, the rubber can absorb the vibration energy, thereby achieving the purpose of weakening the motor vibration noise and optimizing the motor NVH performance.

[0062] Combined with Figure 4 and Figure 5 As shown, the motor housing 1 in the present application includes: a first bottom plate 12 and a first side plate 13.

[0063] Among them, the first bottom plate 12 has a first mounting hole 11 penetrating axially. The bearing seat 2 is installed in the first mounting hole 11, and there is a gap 5 between the water channel guide plate 4 and the first bottom plate 12; the first side plate 13 is integrally formed with the edge of the first bottom plate 12 and forms a groove structure. The water channel guide plate 4 and the stator bottom plate 3 are both installed in the groove structure; the coolant pipeline 15 is fixed on the first side plate 13, and the stator bottom plate 3 is fixedly connected to the first side plate 13.

[0064] Figure 5 The first bottom plate 12 in is a circular plate structure, and the first side plate 13 is an annular structure and is connected to the edge of the first bottom plate 12. In some embodiments, the motor housing 1 includes, but is not limited to, an injection-molded structural member. The first mounting hole 11 is located at the center of the first bottom plate 12, and the axis of the first mounting hole 11 coincides with the axis of the first bottom plate 12 to ensure the stability during the rotation of the motor.

[0065] The water channel guide plate 4 and the stator bottom plate 3 are installed in the groove structure, which can reduce the axial dimension of the housing assembly and is beneficial to the miniaturization development of the axial-flux motor. The non-metallic injection-molded motor housing 1 wrapping the internal structure is beneficial to reducing the motor noise.

[0066] In some embodiments, the coolant pipeline 15 includes, but is not limited to, being fixed on the first side plate 13 by welding, and the stator bottom plate 3 is fixedly connected to the first side plate 13. It should be noted that the coolant pipeline 15 communicates with the groove structure surrounded by the first side plate 13 and the first bottom plate 12. In an implementable embodiment, the coolant pipeline 15 penetrates the first side plate 13, or a through hole communicating with the coolant pipeline 15 is opened on the first side plate 13.

[0067] Combined with Figure 5 and Figure 8As shown, the circumferential direction of the water channel deflector plate 4 has a lapping edge (not marked in the figure), and the first bottom plate 12 has a boss (not marked in the figure) for lapping and cooperating with the lapping edge. The water channel deflector plate 4 and the first bottom plate 12 are lapped and limited by the lapping edge and the boss. The above-mentioned gap 5 is formed between the first bottom plate 12, the boss and the water channel deflector plate 4.

[0068] Since the formation of the gap 5 is mainly formed between the water channel deflector plate 4 and the motor housing 1, and the core of this application does not lie in the shape of the gap 5, as long as there is a gap 5 between the motor housing 1 and the water channel deflector plate 4, it can meet the requirements of this application. Therefore, on this basis, any shape and any size of the gap 5 are within the scope of protection.

[0069] Exemplarily, the shape and size of the gap 5 can be set according to the boss and the water channel deflector plate 4.

[0070] It should be noted that the shape of the side of the water channel deflector plate 4 for forming the gap 5 is described below and is not specifically limited here. The shape of the boss includes but is not limited to a circular ring column structure, and the gap 5 is formed at the outer circle position of the boss.

[0071] Combined with Figure 7 and Figure 8 As shown, the water channel deflector plate 4 is a metal stamping part with a groove 42, and the groove 42 forms a coolant channel. Specifically, the water channel deflector plate 4 can be a circular plate with a groove 42 stamped thereon, so that the groove 42 is recessed. The shape and size of the groove 42 can be set according to the required coolant channel. It should be noted that after the metal plate is stamped with the groove 42, a protrusion is formed on the other side, and there is a spacing between adjacent protrusions, and this spacing can cooperate with the first bottom plate 12 to form a part of the gap 5.

[0072] The generation of the spacing can increase the size of part of the gap 5 and improve the ability to weaken the motor vibration noise and optimize the motor NVH performance.

[0073] The water channel deflector plate 4 has a second mounting hole 41 penetrating along the axial direction, and the above-mentioned bearing seat 2 is installed in the second mounting hole 41.

[0074] Combined with Figure 9 As shown, the stator bottom plate 3 includes: a second bottom plate 32 and a second side plate 33.

[0075] Among them, one side of the second bottom plate 32 is used to connect with the stator, and the other side is used for sealing connection with the side of the water channel deflector plate 4 with the groove 42. A coolant channel is formed between the groove 42 and the second bottom plate 32; the second bottom plate 32 has a third mounting hole 31 along the axial direction, and the bearing seat 2 is installed in the third mounting hole 31; the second side plate 33 is integrally formed with the edge of the second bottom plate 32 and forms a groove structure, and the second side plate 33 is fixedly connected to the motor housing 1.

[0076] In some embodiments, the second base plate 32 is arranged in contact with the water channel guide plate 4. After being in contact, a sealed coolant channel is formed between the second base plate 32 and the groove 42, and the coolant channel communicates with the coolant pipeline 15.

[0077] In order for the coolant channel to communicate with the coolant pipeline 15, the second side plate 33 has an avoidance notch for avoiding the installation of the coolant pipeline 15 of the motor housing 1. Figure 1 and Figure 2 As shown in, the position of the avoidance notch is the same as the installation position of the coolant pipeline 15 of the motor housing 1, and the position of the second base plate 32 at the avoidance notch can be inserted into the first side plate 13 of the motor housing 1. The flanging of the second side plate 33 is connected to the flanging of the first side plate 13.

[0078] In some embodiments, the stator base plate 3 is a stamping part and is stretched to form the second side plate 33; and / or, the motor housing 1 is a non-metallic housing, and the coolant pipeline 15 is welded to the motor housing 1. By using stamping and stretching to form the second side plate 33, the distance from the outer ring coil to the stator base plate 3 can be shortened, so as to quickly transfer heat to the water channel guide plate 4; on the other hand, the electromagnetic environment inside the stator base plate 3 can be shielded.

[0079] The connection methods of the motor housing 1, the stator base plate 3 and the water channel guide plate 4 will be described below, but the connection methods in this application are not limited to the following connection methods.

[0080] Figure 5 The flanging of the first side plate 13 in has a first threaded hole 14, Figure 9 The flanging of the second side plate 33 in has a second threaded hole 34. The first side plate 13 and the second base plate 32 are fixedly connected through the first threaded hole 14 and the second threaded hole 34, that is, the motor housing 1 and the stator base plate 3 are connected by screws.

[0081] The flanging of the second side plate 33 is a stamping flange, and the second threaded hole 34 is formed by means of blanking, punching or machining. The first side plate 13 is an injection molded part, the flanging can be directly injection molded, and the first threaded hole 14 is formed by means of blanking, punching or machining.

[0082] Figure 7 A third screw hole 43 is provided on the groove wall of adjacent grooves 42 in, Figure 9 The second base plate 32 in has a fourth threaded hole 35. The water channel guide plate 4 and the stator base plate 3 are fixedly connected through the third screw hole 43 and the fourth threaded hole 35, that is, the stator base plate 3 and the water channel guide plate 4 are connected by screws.

[0083] To improve the damping effect of the motor housing 1, in some embodiments, the motor housing 1 is a non-metallic part, including high-damping materials such as polyphenylene sulfide (PPS) or fiberglass. Correspondingly, the screws connecting the motor housing 1 and the stator base plate 3, as well as the screws connecting the stator base plate 3 and the water channel deflector 4, are all installed with rubber rings.

[0084] The axial conduction response surface of the stator vibration of the axial-flux motor is divided into the outer surface of the water channel deflector 4 and the bolt fastening points between the stator base plate 3 and the motor housing 1. By using a motor housing 1 made of a non-metallic material with better elastic modulus and simultaneously using rubber gaskets to install the fastening bolts, the vibration and noise transmission at the bolt points can be significantly reduced.

[0085] Combined Figure 6 As shown, the bearing housing 2 includes along the axial direction: a first section 21, a limiting flange 22, and a second section 23.

[0086] Among them, the first section 21 is connected in a mating manner with the first mounting hole 11 of the motor housing 1. The diameter of the limiting flange 22 is larger than that of the first section 21, and the limiting flange 22 is connected in a mating manner with the second mounting hole 41; the second section 23 is mated with the third mounting hole 31, and the diameter of the second section 23 is smaller than that of the limiting flange 22.

[0087] In this application, a specific connection method of the bearing housing 2 is disclosed. The first section 21, the limiting flange 22, and the second section 23 are integrally formed metal castings, and the dimensions and connection methods of the bearing housing 2 can also be set according to different requirements.

[0088] In addition, this application also discloses an axial-flux motor, including a housing assembly. Among them, this housing assembly is the housing assembly disclosed in the above embodiments. Therefore, the axial-flux motor with this housing assembly also has all the above technical effects, which will not be elaborated one by one here.

[0089] The axial-flux motor in this application adopts the damping scheme for optimizing vibration and noise disclosed in the above embodiments. The overall noise reduction scheme has a simple structure, is easy to implement and assemble, has a low process difficulty, and a low motor noise reduction cost. At the same time, it greatly reduces the consumption of metal materials, improves the manufacturing efficiency, and reduces the motor material cost.

[0090] In some embodiments, the axial-flux motor is a double-stator single-rotor axial-flux motor.

[0091] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A housing assembly, characterized in that: include: A motor housing, wherein a coolant pipeline is installed on the motor housing; A stator base plate, one side of which is used to be connected to the stator, and an edge of the other side is connected to the motor housing; A water channel guide plate, one side of which is connected to the stator bottom plate and forms a sealed coolant channel with the stator bottom plate, the coolant channel is communicated with the coolant pipeline, and a gap is formed between the other side of the water channel guide plate and the motor housing, and the gap is filled with a damping medium; The bearing seat has a bearing chamber which is axially penetrated and used for installing a bearing. The bearing seat is axially penetrated and connected to the motor housing, the waterway guide plate and the stator bottom plate in sequence.

2. The housing assembly according to claim 1, characterized in that: The damping medium is one of silica gel, rubber, epoxy resin glue, damping oil, solid fragments, acrylic polymers, acrylic copolymers and acrylic blends.

3. The housing assembly according to claim 1, characterized in that: The motor housing comprises: A first bottom plate, wherein the first bottom plate has a first mounting hole extending therethrough in the axial direction, the bearing seat is mounted in the first mounting hole, and a gap is provided between the waterway guide plate and the first bottom plate; A first side plate, wherein the first side plate is integrally formed with an edge of the first bottom plate to form a groove-shaped structure, and the waterway guide plate and the stator bottom plate are both embedded in the groove-shaped structure; The coolant pipeline is fixed on the first side plate, and the stator bottom plate is fixedly connected to the first side plate.

4. The housing assembly according to claim 3, characterized in that: The waterway guide plate has an overlapping edge in the circumference, and the first bottom plate has a boss for overlapping and cooperating with the overlapping edge. The waterway guide plate and the first bottom plate are overlapped and limited by the overlapping edge and the boss.

5. The housing assembly according to any one of claims 1 to 4, characterized in that: The water channel guide plate is a metal stamping part having a groove, and the groove forms the coolant channel; The waterway guide plate has a second mounting hole that penetrates along the axial direction, and the bearing seat is installed in the second mounting hole.

6. The housing assembly according to claim 5, characterized in that: The stator base plate comprises: A second bottom plate, one side of the second bottom plate is used to be connected to the stator, and the other side of the second bottom plate is used to be sealed and connected to the side of the waterway guide plate having a groove, and the coolant channel is formed between the groove and the second bottom plate; the second bottom plate has a third mounting hole along the axial direction, and the bearing seat is installed in the third mounting hole; The second side plate is integrally formed with the edge of the second bottom plate to form a groove structure, and the second side plate is fixedly connected to the motor housing.

7. The housing assembly according to claim 6, characterized in that: The second side plate has an avoidance gap for avoiding the installation of the coolant pipeline of the motor housing.

8. The housing assembly according to claim 6, characterized in that: The stator bottom plate is a stamped part and is stretched to form the second side plate; and / or, The motor housing is a non-metallic housing, and the coolant pipeline is welded to the motor housing.

9. The housing assembly according to claim 6, characterized in that: The bearing seat includes: a first section, the first section being matched with a first mounting hole of the motor housing; A limiting flange, wherein the diameter of the limiting flange is greater than the diameter of the first section, and the limiting flange cooperates with the second mounting hole; The second section cooperates with the third mounting hole, and a diameter of the second section is smaller than a diameter of the limiting flange.

10. An axial flux motor, comprising a housing assembly, characterized in that: The housing assembly is the housing assembly according to any one of claims 1 to 9.

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