Motor assembly and vehicle

Abstract

The utility model provides a motor assembly and a vehicle, the motor assembly comprises a housing and a motor shaft, the motor shaft passes through the housing and is used for connecting a power output member, and a radial gap is arranged between the housing and the motor shaft; the motor shaft is sleeved with the limiting ring, a sealing flange is formed at the end, close to the power output piece, of the limiting ring, and the sealing flange is used for shielding at least part of the radial gap. Therefore, the sealing flange is formed on the limiting ring so as to shield at least part of the radial gap, so that foreign matters are prevented from entering the shell through the radial gap, the risks of corrosion and abrasion of parts in the shell, abnormal noise of the motor assembly and the like are reduced, the service life of the motor assembly is prolonged, and the service life of the motor assembly is prolonged. And the sealing flange is formed at the end, close to the power output piece, of the limiting ring, so that the sealing flange can be arranged away from the shell, interference between the sealing flange and the shell is prevented, and the smoothness of movement of the motor shaft is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a motor component and a vehicle. Background Art

[0002] During the actual use of automobile generators, damage to internal components due to the entry of foreign objects is a difficult problem to overcome.

[0003] In the related technology, there is a gap between the motor housing and the power parts (such as the motor shaft and pulley), and the structure on the motor cannot effectively prevent foreign matter from entering the housing, resulting in foreign matter entering the motor housing through the gap, causing wear and rust of parts in the motor housing and abnormal noise, affecting the service life of the motor. Utility Model Content

[0004] In view of this, the present invention aims to provide a motor assembly to reduce the risk of foreign matter entering the housing, thereby increasing the service life of the motor assembly.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A motor assembly comprises: a housing and a motor shaft, wherein the motor shaft passes through the housing and is used to connect to a power output member, and a radial gap is formed between the housing and the motor shaft; a limit ring, wherein the limit ring is sleeved on the motor shaft, and an end of the limit ring adjacent to the power output member is formed into a sealing flange, and the sealing flange is used to block at least part of the radial gap.

[0007] According to some embodiments of the present invention, the limiting ring includes: a main body, which is sleeved on the motor shaft; a sealing flange, which is arranged on a side of the main body away from the motor shaft and extends along a radial direction parallel to the motor shaft, and in the radial direction parallel to the motor shaft, one end of the sealing flange away from the main body protrudes from the radial gap and is arranged on the other end away from the motor shaft.

[0008] According to some embodiments of the present invention, an axial gap is provided between the power output member and the housing, and the radial gap is connected to the axial gap. A shielding portion is further provided on the housing for shielding at least part of the axial gap.

[0009] According to some embodiments of the present invention, the shielding portion extends in a direction parallel to the axial direction of the motor shaft toward the power output member.

[0010] According to some embodiments of the present invention, a groove is provided on a side of the power output member opposite to the housing, and the shielding portion extends into the groove.

[0011] According to some embodiments of the present invention, the shielding portion is spaced apart from the groove wall of the groove body.

[0012] According to some embodiments of the present invention, one end of the sealing flange is connected to the main body, and the other end of the sealing flange extends toward the shielding portion and is spaced apart from the shielding portion.

[0013] According to some embodiments of the present invention, the sealing flange and the shielding portion jointly define a sealing channel, and the sealing channel extends in a bent manner.

[0014] According to some embodiments of the present invention, the shielding portion and the shell are integrally formed.

[0015] Compared with the prior art, the motor assembly described in the present invention has the following advantages:

[0016] By forming a sealing flange on the limit ring to block at least part of the radial gap, foreign matter is prevented from entering the housing through the radial gap, reducing the risk of rust and wear of parts in the housing and abnormal noise in the motor assembly, which is beneficial to improving the service life of the motor assembly. In addition, by forming the sealing flange at one end of the limit ring adjacent to the power output member, the sealing flange can be set away from the housing to prevent interference between the sealing flange and the housing, which is beneficial to ensuring the smooth movement of the motor shaft.

[0017] Another object of the present invention is to provide a vehicle.

[0018] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0019] A vehicle comprises the above-mentioned motor assembly.

[0020] The advantages of the vehicle and the above-mentioned motor assembly over the prior art are the same and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the partial structure of the motor assembly according to an embodiment of the present utility model;

[0023] Figure 2This is a schematic diagram of the structure of the limit ring according to the embodiment of the utility model Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of the limit ring according to the embodiment of the utility model Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the structure of the housing according to the embodiment of the present utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the structure of the housing according to the embodiment of the present utility model. Figure 2 .

[0027] Description of reference numerals:

[0028] Motor assembly 100,

[0029] Housing 110, shielding portion 111, bearing 112,

[0030] Motor shaft 120,

[0031] Power output member 130, tank body 131,

[0032] Radial clearance 140,

[0033] Limiting ring 150, sealing flange 151, main body 152,

[0034] Axial clearance 160,

[0035] Seal channel 170. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] like Figure 1 As shown, the motor assembly 100 according to an embodiment of the present invention includes: a housing 110 and a motor shaft 120. The motor shaft 120 passes through the housing 110 and is used to connect to the power output member 130. The motor shaft 120 can move relative to the housing 110 and drive the power output member 130 to move relative to the housing 110.

[0039] There is a radial gap 140 between the shell 110 and the motor shaft 120, that is, there is a gap between the shell 110 and the motor shaft 120 in the radial direction parallel to the motor shaft 120 to prevent the shell 110 from contacting the motor shaft 120 and interfering with the movement of the motor shaft 120, which is beneficial to ensure the smooth movement of the motor shaft 120 and the power output member 130.

[0040] Combine Figures 1 to 3 The motor assembly 100 also includes a limiting ring 150, which is sleeved on the motor shaft 120 and is used to limit the displacement of the motor shaft 120 to improve the stability of the motor shaft 120, and one end of the limiting ring 150 adjacent to the power output member 130 is formed as a sealing flange 151.

[0041] The sealing flange 151 is used to block at least part of the radial gap 140 to prevent foreign matter (such as mud and water) from entering the housing 110 through the radial gap 140, thereby reducing the risk of wear of parts in the housing 110. For example, a bearing 112 is provided in the housing 110, and the bearing 112 is used to support the motor shaft 120. After foreign matter enters the housing 110 through the radial gap 140, it will penetrate into the bearing 112, thereby causing problems such as rust and wear of the bearing 112.

[0042] In addition, by forming the sealing flange 151 at the end of the limiting ring 150 away from the housing 110 , it is helpful to prevent the movement of the motor shaft 120 from being interfered with due to the contact between the sealing flange 151 and the housing 110 .

[0043] It should be noted that "blocking the radial gap 140" means that in the projection of the axial direction of the motor shaft 120, the projection surface of the sealing flange 151 and the projection surface of the radial gap 140 have an overlapping area. For example, the projection surface of the sealing flange 151 can completely overlap with the projection surface of the radial gap 140, so that the sealing flange 151 completely blocks the radial gap 140, thereby improving the effect of the sealing flange 151 in preventing foreign matter from entering the housing 110 through the radial gap 140, or the projection surface of the sealing flange 151 can fall within the range of the projection surface of the radial gap 140, and the projection surface of the sealing flange 151 does not completely overlap with the projection surface of the radial gap 140, so that the sealing flange 151 can play a role in preventing foreign matter from entering the housing 110 while reducing the material cost of the limit ring 150, thereby helping to reduce the production cost of the motor assembly 100.

[0044] It is understandable that the specific setting of the sealing flange 151 can be determined according to actual production requirements and is not specifically limited here, as long as the sealing flange 151 can prevent foreign matter from entering the shell 110 through the radial gap 140.

[0045] In related technologies, there is a gap between the motor housing and the power parts (such as the motor shaft and pulley). Mud and water will enter the motor housing through the gap, causing wear and rust of parts in the motor housing and abnormal noise, affecting the service life of the motor.

[0046] The present application forms a sealing flange 151 on the limit ring 150 to block at least part of the radial gap 140, thereby preventing foreign matter from entering the housing 110 through the radial gap 140, reducing the risk of rust and wear of components in the housing 110 and abnormal noise in the motor assembly 100, which is beneficial to improving the service life of the motor assembly 100. In addition, by forming the sealing flange 151 at one end of the limit ring 150 adjacent to the power output part 130, the sealing flange 151 can be set away from the housing 110 to prevent interference between the sealing flange 151 and the housing 110, which is beneficial to ensuring the smooth movement of the motor shaft 120.

[0047] Combine Figures 1 to 3 In some embodiments of the present invention, the limiting ring 150 includes: a main body 152 and a sealing flange 151, the main body 152 is sleeved on the motor shaft 120, and the sealing flange 151 is arranged on the side of the main body 152 away from the motor shaft 120 and extends in a radial direction parallel to the motor shaft 120.

[0048] Exemplarily, the main body 152 can serve as a carrier of the sealing flange 151 to facilitate the setting of the sealing flange 151. The sealing flange 151 is located on the side of the main body 152 close to the power output member 130 in the axial direction, and the sealing flange 151 extends in the radial direction away from the motor shaft 120 to prevent the sealing flange 151 from interfering with the motor shaft 120.

[0049] like Figure 1 As shown, in the radial direction parallel to the motor shaft 120 , one end of the sealing flange 151 away from the main body 152 protrudes from the radial gap 140 away from the motor shaft 120 .

[0050] That is, in the projection in the axial direction, the projection surface of the radial gap 140 completely falls within the range of the projection surface of the sealing flange 151, and the outer peripheral edge of the projection surface of the sealing flange 151 is spaced apart from the outer peripheral edge of the projection surface of the radial gap 140. It can also be understood that in the radial direction, the height of the sealing flange 151 is greater than the height of the radial gap 140, so that the sealing flange 151 can completely block the radial gap 140, thereby helping to improve the effect of the sealing flange 151 in preventing foreign matter from entering the radial gap 140, and further helping to improve the effect of the sealing flange 151 in preventing foreign matter from entering the housing 110, reducing the risk of wear and rust of components in the housing 110, and improving the service life of the motor assembly 100.

[0051] Combine Figure 1 、 Figure 4 and Figure 5 In some embodiments of the present invention, there is an axial gap 160 between the power output member 130 and the housing 110, and the radial gap 140 is connected to the axial gap 160. A shielding portion 111 is also provided on the housing 110, and the shielding portion 111 is used to shield at least part of the axial gap 160.

[0052] Exemplarily, the power output members 130 are spaced apart in the axial direction and form an axial gap 160 to prevent the housing 110 from interfering with the movement of the power output member 130, and the axial gap 160 is connected to the external space. Foreign matter (such as mud and water, etc.) can enter the motor assembly 100 through the axial gap 160. Since the axial gap 160 is connected to the radial gap 140, foreign matter can further enter the housing 110 through the radial gap 140.

[0053] It should be noted that “external space” can be understood as the environmental space outside the vehicle.

[0054] By providing a shielding portion 111 on the shell 110, the shielding portion 111 can obstruct foreign matter in the process of entering the radial gap 140 from the axial gap 160, thereby increasing the difficulty of foreign matter entering the radial gap 140, thereby increasing the difficulty of foreign matter entering the shell 110, and preventing the parts in the shell 110 from rusting or wearing due to foreign matter entering the shell 110.

[0055] Optionally, the shielding portion 111 can completely block the axial gap 160, that is, in the direction extending along the axial gap 160 toward the motor shaft 120, the projection surface of the shielding portion 111 can completely coincide with the projection surface of the axial gap 160, so that the shielding portion 111 can completely block the axial gap 160, thereby improving the blocking effect of the shielding portion 111 on foreign matter.

[0056] Or the shielding portion 111 can shield a portion of the axial gap 160, that is, in the direction in which the axial gap 160 extends toward the motor shaft 120, the projection surface of the shielding portion 111 and the projection surface of the axial gap 160 have an overlapping area, but do not completely overlap, so that the shielding portion 111 can not only have a blocking effect on foreign matter, but also reduce the material used in the shielding portion 111, which is beneficial to reducing the production cost of the motor assembly 100.

[0057] Of course, it is understandable that the specific configuration of the shielding portion 111 can be determined according to actual production requirements and is not specifically limited here.

[0058] Reference Figure 1In some embodiments of the present invention, the shielding portion 111 extends in a direction parallel to the axial direction of the motor shaft 120 toward the power output member 130 .

[0059] Since the axial gap 160 is formed by the shell 110 and the power output member 130 being spaced apart in the axial direction, the shielding portion 111 is extended in the axial direction parallel to the motor shaft 120 so that the shielding portion 111 can shield the axial gap 160. When foreign matter enters the radial gap 140, the foreign matter needs to bypass the shielding portion 111 to increase the difficulty of the foreign matter entering the radial gap 140, thereby helping to reduce the risk of foreign matter entering the shell 110.

[0060] like Figure 1 As shown, in some embodiments of the present invention, a groove 131 is provided on a side of the power output member 130 opposite to the housing 110 , and the shielding portion 111 extends into the groove 131 .

[0061] Exemplarily, the groove body 131 is recessed in a direction away from the shell 110 on a side opposite to the power output member 130 and the shell 110, and the shielding portion 111 can be arranged on a side surface of the shell 110 opposite to the power output member 130, and extend in the direction of the power output member 130 along the axial direction parallel to the motor shaft 120, and the shielding portion 111 can extend into the groove body 131, that is, the groove body 131 can play a role in avoiding the shielding portion 111, so as to facilitate the setting of the shielding portion 111, and by allowing the shielding portion 111 to extend into the groove body 131, it is beneficial to increase the shielding area of ​​the shielding portion 111 on the axial gap 160, and improve the shielding effect of the shielding portion 111 on the axial gap 160.

[0062] The shielding portion 111 may be configured as a boss formed on the housing 110 .

[0063] like Figure 1 As shown, in some embodiments of the present invention, the shielding portion 111 is spaced apart from the groove wall of the groove body 131 .

[0064] Specifically, the shielding portion 111 and the groove wall on either side of the groove body 131 are spaced apart to prevent friction caused by contact between the shielding portion 111 and the groove wall of the groove body 131, thereby preventing the shielding portion 111 from interfering with the movement of the power output member 130 and ensuring the smoothness of the movement of the power output member 130.

[0065] Reference Figure 1 In some embodiments of the present invention, one end of the sealing flange 151 is connected to the main body 152 , and the other end of the sealing flange 151 extends toward the shielding portion 111 and is spaced apart from the shielding portion 111 .

[0066] Exemplarily, the limit ring 150 is arranged relatively close to the motor shaft 120 in the radial direction compared to the shielding portion 111, and in the direction extending along the axial gap 160 toward the motor shaft 120, the projection surface of the limit ring 150 falls within the projection range of the shielding portion 111, that is, the limit ring 150 and the shielding portion 111 are arranged opposite to each other in the radial direction, one end of the sealing flange 151 in the radial direction is connected to the main body 152, and the other end of the sealing flange 151 extends in the radial direction toward the shielding portion 111, and the end of the sealing flange 151 away from the main body 152 is spaced apart from the shielding portion 111 to prevent contact friction between the sealing flange 151 and the shielding portion 111, thereby preventing the shielding portion 111 from interfering with the movement of the motor shaft 120 through the limit ring 150, which is conducive to ensuring the smoothness of the movement of the motor shaft 120.

[0067] like Figure 1 As shown, in some embodiments of the present invention, the sealing flange 151 and the shielding portion 111 jointly define a sealing channel 170 , and the sealing channel 170 bends and extends.

[0068] Reference Figure 1 , Figure 1 The multiple continuous arrows in the figure are schematic diagrams of the sealing channel 170. By providing a shielding portion 111 on the shell 110 and a sealing flange 151 on the limiting ring 150, a bent and extended sealing channel 170 can be formed on the motor assembly 100. The bent and extended sealing channel 170 can extend the movement path of foreign matter in the process of entering the shell 110, so as to increase the difficulty of foreign matter entering the shell 110, which is beneficial to reducing the risk of foreign matter entering the shell 110, thereby reducing the risk of wear and corrosion of parts in the shell 110, and improving the service life of the motor assembly 100.

[0069] Refer to the following Figure 1 The formation of the sealing channel 170 will be briefly described.

[0070] A shielding portion 111 is provided on the shell 110, which can shield the axial gap 160 connected to the external space, and the shielding portion 111 extends into the groove body 131 on the power output member 130, that is, the shielding portion 111 protrudes from the axial gap 160 in the axial direction, and the shielding portion 111 and the groove body 131 jointly define a partial sealing channel 170 whose extension direction is the same as the extension direction of the groove wall of the groove body 131, the sealing flange 151 is located on the side of the groove body 131 close to the shell 110, and the sealing flange 151 and the shielding portion 111 jointly define a partial sealing channel 170 extending along the axial direction, and the axial ends of the partial sealing channel 170 are respectively connected to the partial sealing channel 170 formed in the groove body 131 and the radial gap 140.

[0071] The axial gap 160 and the radial gap 140 may also be considered as part of the sealing channel 170 .

[0072] When foreign matter enters the axial gap 160, it moves radially in the axial gap 160. When the foreign matter contacts the shielding portion 111, the shielding portion 111 can prevent the foreign matter from continuing to move in the axial direction, and can guide the foreign matter in the axial direction to the partial sealing channel 170 defined by the groove body 131 and the shielding portion 111. The foreign matter moves in the axial direction away from the housing 110. When the foreign matter moves to a position where the shielding portion 111 is spaced apart from the groove wall of the groove body 131 in the axial direction, the foreign matter moves radially toward the motor shaft 120. When the foreign matter moves to a position where the sealing flange 151 is spaced apart from the shielding portion 111, the foreign matter can further enter the radial gap 140.

[0073] Therefore, by setting a sealing flange 151 on the limit ring 150 and setting a shielding portion 111 on the shell 110, the motor assembly 100 can form a sealing channel 170. The sealing channel 170 can increase the difficulty of foreign matter entering the interior of the shell 110, thereby helping to reduce the rust and wear of components in the shell 110, and helping to improve the service life of the motor assembly 100.

[0074] Combine Figure 4 and Figure 5 In some embodiments of the present invention, the shielding portion 111 is integrally formed with the housing 110 , which is beneficial to reducing the production and assembly steps of the motor assembly 100 , reducing the assembly difficulty of the motor assembly 100 , and thus beneficial to improving the production efficiency of the motor assembly 100 .

[0075] In other embodiments of the present invention, the shielding portion 111 and the shell 110 are arranged separately, and the shielding portion 111 can be installed on the shell 110 by means of threaded connection or other connection methods, so as to facilitate the processing and production of the shielding portion 111 and the shell 110, and facilitate the disassembly, assembly and maintenance of the shielding portion 111 or the shell 110.

[0076] It is understandable that the arrangement of the shielding portion 111 and the housing 110 can be determined according to actual production requirements and is not specifically limited here.

[0077] Among them, the motor assembly 100 can be specifically a generator assembly, the power output part 130 can be a power output structure such as a pulley, the shielding portion 111 is arranged on the side of the shell 110 opposite to the power output part 130, and the shell 110 can be specifically the front end cover of the motor assembly 100.

[0078] The vehicle according to the present invention includes the motor assembly 100 described above.

[0079] By forming a sealing flange 151 on the limiting ring 150 to block at least part of the radial gap 140, foreign matter is prevented from entering the housing 110 through the radial gap 140, thereby reducing the risks of rust and wear of parts in the housing 110 and abnormal noise of the motor assembly 100, which is beneficial to improving the service life of the motor assembly 100. In addition, by forming the sealing flange 151 at one end of the limiting ring 150 adjacent to the power output member 130, the sealing flange 151 can be set away from the housing 110 to prevent interference between the sealing flange 151 and the housing 110, which is beneficial to ensuring the smooth movement of the motor shaft 120.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor assembly, characterized in that: include: A housing (110) and a motor shaft (120), wherein the motor shaft (120) passes through the housing (110) and is used to connect to a power output member (130), and a radial gap (140) is provided between the housing (110) and the motor shaft (120); A limiting ring (150) is sleeved on the motor shaft (120), and one end of the limiting ring (150) adjacent to the power output member (130) is formed into a sealing flange (151), and the sealing flange (151) is used to block at least a portion of the radial gap (140).

2. The motor assembly according to claim 1, wherein: The limiting ring (150) comprises: A main body (152), wherein the main body (152) is sleeved on the motor shaft (120); A sealing flange (151) is provided on a side of the main body (152) away from the motor shaft (120) and extends in a radial direction parallel to the motor shaft (120), and in a radial direction parallel to the motor shaft (120), one end of the sealing flange (151) away from the main body (152) protrudes from the radial gap (140) and is provided at one end away from the motor shaft (120).

3. The motor assembly according to claim 2, characterized in that An axial gap (160) is provided between the power output member (130) and the housing (110), and the radial gap (140) is communicated with the axial gap (160). A shielding portion (111) is further provided on the housing (110), and the shielding portion (111) is used to shield at least part of the axial gap (160).

4. The motor assembly according to claim 3, characterized in that The shielding portion (111) extends in a direction parallel to the axial direction of the motor shaft (120) toward the power output member (130).

5. The motor assembly according to claim 4, characterized in that A groove body (131) is provided on a side of the power output member (130) opposite to the housing (110), and the shielding portion (111) extends into the groove body (131).

6. The motor assembly according to claim 5, characterized in that The shielding portion (111) is spaced apart from the groove wall of the groove body (131).

7. The motor assembly according to claim 4, wherein: One end of the sealing flange (151) is connected to the main body (152), and the other end of the sealing flange (151) extends toward the shielding portion (111) and is spaced apart from the shielding portion (111).

8. The motor assembly according to claim 4, wherein: The sealing flange (151) and the shielding portion (111) jointly define a sealing channel (170), and the sealing channel (170) bends and extends.

9. The motor assembly according to claim 4, wherein: The shielding portion (111) and the housing (110) are integrally formed.

10. A vehicle, characterized in that: The invention comprises a motor assembly according to any one of claims 1 to 9.

Images