Vehicle motor insulating seat and motor assembly

Abstract

The utility model provides a vehicle motor insulating seat and a motor assembly. The vehicle motor insulating seat is used as a connecting seat of a motor installed on a vehicle, an external cable and an internal cable located in a motor shell are electrically connected through a metal connecting piece, an end cover is detachably installed on the motor shell, and the vehicle motor insulating seat is contained in the end cover and detachably fixed to the end cover. The end cover comprises an inner surface with a curved inner contour, the vehicle motor insulation seat comprises an outer surface arranged adjacent to the inner surface, the outer surface is provided with a curved outer contour matched with the inner surface in shape, and in the assembled state of the vehicle motor insulation seat and the end cover, the outer surface is provided with a curved outer contour matched with the inner surface in shape. And a predetermined gap is formed between the inner surface and the outer surface, so that unexpected foreign matters can be prevented from entering the interior of the motor through the gap. According to the invention, unexpected foreign matters can be effectively prevented from entering the motor in a simple and convenient manner, and expected performances such as reliability of the motor can be ensured.

Description

Technical Field

[0001] The present application relates to a vehicle motor insulation seat and related motor components, and in particular to a vehicle motor insulation seat that can effectively prevent foreign matter from entering the interior of the motor and a motor component including the vehicle motor insulation seat. Background Art

[0002] As is known to all, with the continuous development of vehicle technology, vehicle motors such as vehicle drive motors are increasingly widely used in the vehicle field. Typically, taking the vehicle drive motor as a power driving source of the vehicle as an example, it is usually electrically connected to an external cable (in other words, a high-voltage power supply cable from a motor controller) that provides power from the outside of the motor housing by means of a vehicle motor insulation seat and a metal connector such as a screw and the like, and an internal cable (or motor cable, and for example, a three-phase high-voltage line in the case of a three-phase AC motor) located inside the motor housing.

[0003] However, in the existing known structures, the vehicle motor insulation seat and the end cover which is usually fixed on the motor housing and suitable for accommodating the vehicle motor insulation seat basically adopt a completely flat surface design, and there is usually a large gap between the outer surface of the vehicle motor insulation seat and the inner surface of the end cover. In this case, metal connectors such as screws and other foreign objects such as particles that often appear during the installation and use of the vehicle may enter the interior of the motor through the gap, thereby significantly affecting the reliability of the motor, and for example, may reduce the electrical clearance and creepage distance of the motor, thereby causing adverse consequences such as motor insulation failure. In addition, since the metal objects such as the fallen screws may cause a short circuit in the motor, the motor is scrapped because it cannot be reused, which greatly increases the maintenance and use costs of the vehicle.

[0004] In addition, compared with industrial drive motors, vehicle motors have special requirements in terms of operating characteristics, working environment, performance, etc. In particular, due to the frequent changes in vehicle operating conditions (for example, repeated starting, acceleration and deceleration, uphill and downhill, emergency braking or sharp turns, etc.) and the frequent bumps and vibrations during the operation of the vehicle, the probability of the above-mentioned adverse phenomena will be significantly increased, and higher requirements are placed on the reliability of vehicle motors during use.

[0005] Therefore, it is necessary to improve the above-mentioned known existing structural designs to reduce or even eliminate the above-mentioned problems or defects. Utility Model Content

[0006] In view of the above background, the purpose of the present application is to provide a vehicle motor insulation seat, which can at least partially overcome or even completely eliminate the above-mentioned deficiencies or defects in the prior art.

[0007] Another object of the present application is to provide a motor assembly comprising the vehicle motor insulation seat.

[0008] To this end, according to one aspect of the present application, a vehicle motor insulation seat is proposed, which is used as a connection seat for a motor installed on a vehicle, and electrically connects an external cable that provides power from the outside of the motor housing and an internal cable located inside the motor housing by means of a metal connector, and an end cover is detachably mounted on the motor housing, and the vehicle motor insulation seat is accommodated in the end cover and detachably fixed thereto, wherein the end cover includes an inner surface having a curved inner contour, and the vehicle motor insulation seat includes an outer surface arranged adjacent to the inner surface, the outer surface having a curved outer contour that is adapted in shape to the inner surface, and when the vehicle motor insulation seat and the end cover are assembled, there is a predetermined gap between the inner surface and the outer surface, thereby preventing unwanted foreign matter from entering the interior of the motor through the gap.

[0009] According to a feasible implementation manner, the curved outer contour of the outer surface extends following the curved inner contour of the inner surface, and the two are complementary in shape.

[0010] According to a possible implementation, the inner contour is formed by a plurality of protrusions and a plurality of recesses alternately arranged along the inner surface, and the outer contour is formed by a plurality of recesses and a plurality of protrusions alternately arranged along the outer surface.

[0011] According to a feasible implementation manner, the protrusions and recesses on the inner surface and the corresponding recesses and protrusions on the outer surface have rounded or wavy shapes, respectively, and the intervals between adjacent protrusions or recesses are configured to be the same or different.

[0012] According to a feasible implementation manner, the gaps are evenly arranged along the inner surface and the outer surface.

[0013] According to a feasible implementation manner, the inner surface and / or the outer surface is coated with a sticky substance having an adhesion effect, and the gap still exists after the sticky substance is coated.

[0014] According to a feasible implementation manner, the viscous substance is adhesive or grease.

[0015] According to a feasible implementation manner, the gap is determined through experience or experiments to adapt to different applications or usage requirements, and is preferably not less than 2 mm.

[0016] According to a feasible implementation manner, the foreign matter is a screw or a particle, and the inner surface and the outer surface are at least arranged at a position near a metal connector that electrically connects the external cable and the internal cable.

[0017] To this end, according to another aspect of the present application, there is provided a motor assembly, which is suitable for installation on a vehicle and includes:

[0018] A motor, comprising a motor housing and a stator and a rotor accommodated in the motor housing; and

[0019] An end cover detachably disposed on the motor housing;

[0020] Wherein, the end cover includes an inner surface with a curved inner contour, and the motor assembly also includes the vehicle motor insulation seat as described above.

[0021] As can be seen from the above description, in order to address the problem that foreign objects such as screws and particles may fall into the interior of the motor and thereby cause defects such as insulation failure, the present application proposes a new type of vehicle motor insulation seat and a motor assembly including the vehicle motor insulation seat, wherein the end cover and the vehicle motor insulation seat, which are arranged corresponding to each other, are respectively designed to include an inner surface with a curved internal contour and an outer surface with a curved external contour that is adapted in shape to the inner surface, and a predetermined gap is left between the inner surface and the outer surface, and other specific designs, can effectively prevent unwanted foreign objects from entering the interior of the motor through the gap in a simple manner, and ensure the expected performance of the vehicle motor, such as reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The features, advantages and other aspects of the present application will be more clearly understood through the following more detailed description of the present application given with reference to the accompanying drawings and in combination with exemplary embodiments. In the accompanying drawings:

[0023] Figure 1 A schematic structural diagram of a vehicle motor insulation seat according to an exemplary embodiment of the present application is shown in a simplified manner;

[0024] Figure 2 A partial cutaway schematic diagram of an end cover corresponding to a vehicle motor insulation seat according to an exemplary embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of the assembly state of a vehicle motor insulation seat and a corresponding end cover according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0026] The following describes in detail the specific embodiments of the present application with reference to the accompanying drawings. It should be understood that the embodiments and related descriptions given herein should be understood as exemplary and do not constitute limitations on the present application.

[0027] In addition, it should be noted that in different drawings, the same or similar reference numerals represent components that are substantially the same or similar in structure or function, so as to avoid repetitive descriptions as much as possible. It should be understood that the size, position, etc. of each component in the drawings are not drawn strictly to scale, and the size, proportional relationship, etc. of each component should not be used as a limitation to the present application.

[0028] In addition, it should be noted that, for the sake of simplicity and to more conveniently understand the main improvements or key points of the present application, the specification of the present application and its drawings focus on describing or showing the contents related to the improvements or improved parts of the present application, while omitting or simplifying the structures and related descriptions of other parts. As for the details of the structural design, working principle, material selection, etc. of these omitted parts, since they belong to the known technology in the art, and those skilled in the art can make appropriate selections based on the existing knowledge and specific applications in the art, they will not be repeated here, nor will they be illustrated in detail. In other words, the well-known structures in the art are not described in detail to avoid unnecessarily blurring the core or essence of the present application. Moreover, the drawings of the present application mainly show the components related to the design or main improvements of the present application, but this does not mean that other components are not included, but are omitted.

[0029] Moreover, for the sake of convenience, in the following description of the present application, the vehicle drive motor that can be used as the main drive motor of an electric vehicle will be taken as an example to explain in detail the technical solution, design highlights or main improvements, specific implementation methods and advantages of the present application, but the present application is obviously not limited to this.

[0030] First, as mentioned above, in the prior art, the insulating seat (i.e., the insulating seat of the vehicle motor) and the end cover (or the end cover of the vehicle motor) related to the vehicle motor generally adopt a planar surface design, and there is usually a large gap between the two. In this case, during the operation of the vehicle, foreign matter such as connecting screws and particles may enter the motor through the gap, thereby significantly affecting the reliability of the motor, etc., and may cause adverse consequences such as motor insulation failure and short circuit in the motor, thereby significantly increasing the maintenance and use costs of the vehicle.

[0031] In order to overcome the defects in the prior art, according to the exemplary embodiment of the present application, an improved vehicle motor insulation seat 1 is proposed (for example, see in particular Figure 1), wherein, in a manner known in the art, the vehicle motor insulation seat 1 is used as a connection seat for a motor mounted on a vehicle, and can electrically connect an external cable that provides power from the outside of the motor housing and an internal cable located inside the motor housing, for example, by means of a metal connector (usually a screw).

[0032] In addition, corresponding to the vehicle motor insulation seat 1, the motor housing is usually detachably mounted with an end cover 2 (see, for example, Figure 2 , Figure 3 As known to those skilled in the art, the end cover 2 can be integrally formed or assembled from a plate, for example, and a closed space suitable for accommodating the vehicle motor insulation seat 1 and communicating with the inner space of the motor housing is formed therein. Therefore, the vehicle motor insulation seat 1 can be accommodated in the end cover 2 and can be fixed thereto in a detachable manner.

[0033] In a manner known in the art, the vehicle motor insulation seat 1 will generally serve as a reliable terminal seat between the external cable and the internal cable, thereby providing the required support, retention, insulation protection and other functions. As for further details of the vehicle motor insulation seat 1, the materials used, etc., they can be selectively applied according to the known content or knowledge in the art, and their working principles or methods are known in the art, so they will not be described in detail in this article. Figures 1 to 3 The focus is on describing the improvements of this application compared to the prior art.

[0034] More specifically, combined with Figures 1 to 3 It can be clearly seen that, unlike the prior art, according to the structural design of the present application, the end cover 2 includes an inner surface 3 having a curved inner contour. Accordingly, the vehicle motor insulation seat 1 includes an outer surface 4 disposed adjacent to the inner surface 3, the outer surface 4 having a curved outer contour that is adapted to the inner surface 3 in shape (in particular, the curved outer contour of the outer surface 4 extends following the curved inner contour of the inner surface 3 and the two are complementary in shape), and in the assembled state of the vehicle motor insulation seat 1 and the end cover 2 (such as Figure 3 As shown in the figure, there is a predetermined gap between the inner surface 3 and the outer surface 4, thereby preventing unwanted foreign matter (especially, for example, foreign matter with a certain size) from entering the interior of the motor through the gap.

[0035] It can be seen that compared with the prior art, the present application designs a curved structure that adapts the contours of the vehicle motor insulation seat and the corresponding end cover to each other and leaves a predetermined gap (the gap can be small enough) between the two, thereby being able to effectively prevent unwanted foreign objects such as screws and particles from accidentally falling into the motor during the operation of the motor and the vehicle in a simple and reliable manner.

[0036] Advantageously, the inner contour is formed by a plurality of protrusions and a plurality of recesses arranged alternately along the inner surface 3 , and the outer contour is formed by a corresponding plurality of recesses and a plurality of protrusions arranged alternately along the outer surface 4 .

[0037] Obviously, the number, size, shape, and spacing between adjacent protrusions or recesses of the protrusions or recesses can be varied according to actual needs and specific applications (for example, the protrusions or recesses can have rounded or wavy shapes, and the spacing between adjacent protrusions or recesses can be the same or different) to achieve the best design and use effect.

[0038] Advantageously, the gaps are evenly arranged along the inner surface 3 and the outer surface 4, so that the required installation and adjustment can be easily performed.

[0039] Advantageously, the gap is determined through experience or experiment, and for example, may preferably be set to be not less than 2 mm, but is obviously not limited thereto.

[0040] In this case, according to the present application, the gap between the inner surface 3 of the end cover 2 and the outer surface 4 of the vehicle motor insulation seat 1 can be set as small as possible (or small enough) under the premise of meeting the installation and use requirements and safety, so as to prevent foreign objects such as screws from entering the motor to the greatest extent. In addition, the vehicle motor insulation seat 1 will not break even under vibration and high voltage conditions and avoid the adverse phenomena such as reduction of the electrical clearance and creepage distance of the motor. In other words, the vehicle motor insulation seat 1 of the present application can withstand harsh working conditions such as severe vibration and high voltage of the vehicle motor and the vehicle during operation.

[0041] Advantageously, the inner surface 3 and / or the outer surface 4 are coated with (especially, partially coated with) a sticky substance with an adhesive effect, and the gap still exists after the sticky substance is coated. In addition, advantageously, the sticky substance is an adhesive or grease, but it is obviously not limited thereto.

[0042] In the above manner, even when foreign matter unexpectedly enters the gap, the foreign matter can be adhered by the adhesive material coated on the inner surface 3 and / or the outer surface 4, thereby preventing the foreign matter from further entering the interior of the motor.

[0043] Advantageously, the foreign matter is a screw or a particle, and the inner surface 3 and the outer surface 4 are at least arranged near a metal connector (usually a screw) that electrically connects the external cable and the internal cable.

[0044] In other words, according to the present application, at least in the position near the metal connector that electrically connects the external cable and the internal cable, the inner surface 3 of the end cover 2 and the outer surface 4 of the vehicle motor insulation seat 1 adopt the specific structural design as described in the present application, so as to effectively prevent screws and the like from entering the interior of the motor due to loosening or falling off, for example.

[0045] Advantageously, the vehicle motor insulating seat 1 is a connection seat of a driving motor serving as a power driving source of an electric vehicle (eg, a pure electric vehicle or a hybrid electric vehicle) so as to obtain the best use effect.

[0046] In addition, the motor applicable to the vehicle motor insulation seat 1 of the present application can be a DC motor or an AC motor. In other words, the vehicle motor insulation seat 1 of the present application can be widely used in various types of motors and is not limited by the installation position, installation method, etc.

[0047] The present application also proposes a motor assembly, which is suitable for being installed on a vehicle and comprises the vehicle motor insulation seat 1 as described above.

[0048] More specifically, the present application proposes a motor assembly, which is suitable for installation on a vehicle and includes:

[0049] A motor, comprising a motor housing and a stator and a rotor accommodated in the motor housing; and

[0050] An end cover 2 detachably arranged on the motor housing;

[0051] The end cover 2 includes an inner surface 3 having a curved inner contour, and the motor assembly further includes the vehicle motor insulation seat 1 as described above.

[0052] It has been confirmed that, through the cooperation of the specific vehicle motor insulation seat of the present application and the end cover related thereto, an excellent foreign body entry prevention or dust prevention effect can be obtained (in other words, foreign bodies such as screws and particles can be effectively prevented from unexpectedly entering the motor), and the insulation robustness of the motor can be significantly improved. In particular, after adopting the specific structural design of the present application, even if screws near the vehicle motor fall due to loosening, it is impossible for them to enter the vehicle motor of the present application through the gap between the vehicle motor insulation seat and the end cover. It can be seen that the present application has many advantages such as simple structure, high reliability, and low production cost while overcoming the defects in the prior art in a simple manner. Moreover, the present application can be reliably and conveniently implemented without significantly changing the basic structure of the existing vehicle motor (it mainly changes the structural design of the vehicle motor insulation seat and the end cover related thereto).

[0053] The present application has been described in detail above in conjunction with specific embodiments. Obviously, as mentioned above, the embodiments described above and shown in the accompanying drawings should be understood as exemplary and do not constitute a limitation to the present application, and those skilled in the art can freely select or apply various related components based on specific applications, working environments, usage requirements, etc. and in conjunction with relevant knowledge or technology known in the art. Moreover, for those skilled in the art, various variations or modifications can be made to the present application without departing from the spirit of the present application. Obviously, these variations or modifications do not depart from the scope of the present application.

Claims

1. A vehicle motor insulation seat (1), which is used as a connection seat for a motor installed on a vehicle, and electrically connects an external cable that provides power from the outside of the motor housing and an internal cable located inside the motor housing by means of a metal connector, wherein an end cover (2) is detachably mounted on the motor housing, and the vehicle motor insulation seat (1) is accommodated in the end cover (2) and detachably fixed thereto, characterized in that: The end cover (2) includes an inner surface (3) having a curved inner contour, the vehicle motor insulation seat (1) includes an outer surface (4) arranged adjacent to the inner surface (3), the outer surface (4) having a curved outer contour adapted in shape to the inner surface (3), and in an assembled state of the vehicle motor insulation seat (1) and the end cover (2), a predetermined gap is provided between the inner surface (3) and the outer surface (4), thereby preventing unwanted foreign matter from entering the interior of the motor through the gap.

2. The vehicle motor insulation seat (1) according to claim 1, characterized in that: The curved outer contour of the outer surface (4) extends following the curved inner contour of the inner surface (3), and the two are complementary in shape.

3. The vehicle motor insulation seat (1) according to claim 1, characterized in that: The inner contour is formed by a plurality of protrusions and a plurality of recesses arranged alternately along the inner surface (3), and the outer contour is formed by a corresponding plurality of recesses and a plurality of protrusions arranged alternately along the outer surface (4).

4. The vehicle motor insulation seat (1) according to claim 3, characterized in that: The protrusions and recesses on the inner surface (3) and the corresponding recesses and protrusions on the outer surface (4) have rounded or wavy shapes, respectively, and the spacing between adjacent protrusions or recesses is configured to be the same or different.

5. The vehicle motor insulation seat (1) according to claim 1, characterized in that: The gaps are evenly arranged along the inner surface (3) and the outer surface (4).

6. The vehicle motor insulation seat (1) according to claim 1, characterized in that: The inner surface (3) and / or the outer surface (4) is coated with a sticky substance having an adhesive effect, and the gap still exists after the sticky substance is coated.

7. The vehicle motor insulation seat (1) according to claim 6, characterized in that: The viscous substance is adhesive or grease.

8. The vehicle motor insulation seat (1) according to claim 1, 6 or 7, characterized in that: The gap is determined through experience or experiment and is not less than 2 mm.

9. The vehicle motor insulation seat (1) according to claim 1, characterized in that: The foreign matter is a screw or a particle, and the inner surface (3) and the outer surface (4) are at least arranged at a position near a metal connector that electrically connects the external cable and the internal cable.

10. A motor assembly adapted to be mounted on a vehicle, comprising: A motor, comprising a motor housing and a stator and a rotor accommodated in the motor housing; as well as An end cover (2) detachably arranged on the motor housing; It is characterized in that the end cover (2) comprises an inner surface (3) having a curved inner contour, and the motor assembly further comprises a vehicle motor insulation seat (1) according to any one of claims 1 to 9.

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