Motor controller and vehicle

Abstract

The motor controller comprises a shell and a sound insulation pad, the sound insulation pad is fixed to the shell, the sound insulation pad comprises a sound absorption layer and a sound insulation layer, the sound absorption layer is connected with the shell, the sound insulation layer is connected to the side, away from the shell, of the sound absorption layer, and the sound insulation layer is of a corrugated structure. By arranging the sound insulation layer with the corrugated structure, the sound insulation and noise reduction performance of the sound insulation pad can be improved, the sound insulation pad is installed on the shell of the motor controller, the possibility that noise generated in the operation process of the motor controller is diffused outwards is reduced, therefore, the comfort of a vehicle is improved, and then the experience feeling of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a motor controller and a vehicle. BACKGROUND

[0002] The motor controller is one of the key components of a vehicle. The motor controller generates noise during operation, which affects the comfort of the vehicle and reduces the user experience. CONTENT

[0003] Therefore, the present application provides a motor controller and a vehicle to solve the problem that the noise generated by the motor controller affects the comfort of the vehicle.

[0004] In a first aspect, an embodiment of the present application provides a motor controller, comprising a shell and a sound insulation pad, the sound insulation pad is fixed to the shell, wherein the sound insulation pad comprises a sound absorption layer and a sound insulation layer, the sound absorption layer is connected to the shell, the sound insulation layer is connected to the side of the sound absorption layer away from the shell, and the sound insulation layer has a corrugated structure.

[0005] In a possible implementation, the corrugated structure comprises a convex portion and a concave portion, along the thickness direction of the sound insulation pad, the convex portion protrudes away from the sound absorption layer, and the concave portion is recessed towards the sound absorption layer.

[0006] In a possible implementation, the convex portion and the concave portion are both arc-shaped.

[0007] In a possible implementation, the sound insulation layer comprises a PET layer and a PA layer, along the thickness direction of the sound insulation pad, the PET layer is connected to the sound absorption layer through the PA layer.

[0008] In a possible implementation, along the thickness direction of the sound insulation pad, the thickness of the PET layer is greater than the thickness of the PA layer.

[0009] In a possible implementation, along the thickness direction of the sound insulation pad, one end of the sound absorption layer is attached to the shell, and the other end of the sound absorption layer is attached to the sound insulation layer.

[0010] In a possible implementation, the sound absorption layer is a PU layer.

[0011] In a possible implementation, along the thickness direction of the sound insulation pad, the thickness of the sound absorption layer is greater than the thickness of the sound insulation layer.

[0012] In a possible implementation, the sound insulation pad has at least one first mounting hole penetrating the sound insulation layer and the sound absorption layer, the shell has at least one second mounting hole, and a fastener is arranged in the first mounting hole and the second mounting hole, so that the sound insulation pad is fixedly connected to the shell by the fastener.

[0013] In a second aspect, the embodiments of the present application further provide a vehicle, which has the motor controller according to any one of the above.

[0014] The embodiments of the present application provide a motor controller and a vehicle, which include a shell and a sound insulation pad fixed to the shell. The sound insulation pad includes a sound absorption layer and a sound insulation layer. The sound absorption layer is connected to the shell, and the sound insulation layer is connected to the sound absorption layer away from the shell. The sound insulation layer has a corrugated structure. The sound insulation layer with the corrugated structure can improve the sound insulation and noise reduction performance of the sound insulation pad. The sound insulation pad is installed on the shell of the motor controller, which reduces the possibility of noise generated by the motor controller during operation spreading outward, thereby improving the comfort of the vehicle and enhancing the user experience.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 A schematic diagram of a motor controller and a driving motor in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a shell of a motor controller and a sound insulation pad in an embodiment of the present application;

[0019] Figure 3 A partial schematic diagram of a sound insulation pad in an embodiment of the present application;

[0020] Figure 4 A partial schematic diagram of a sound insulation pad in another embodiment of the present application.

[0021] LIST OF REFERENCE NUMERALS

[0022] 10 - motor controller;

[0023] 1 - shell; 11 - second mounting hole;

[0024] 2 - sound insulation pad; 21 - sound absorption layer; 22 - sound insulation layer; 221 - protruding part; 222 - recessed part; 223 - PET layer; 224 - PA layer; 23 - first mounting hole;

[0025] 3 - fastener;

[0026] 20 - drive motor. DETAILED DESCRIPTION

[0027] For better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below in combination with the drawings.

[0028] It should be clear that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0029] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0030] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0031] As shown in Figures 1 to 3 The motor controller 10 provided by the embodiments of the present application includes a shell 1 and a sound insulation pad 2, and the sound insulation pad 2 is fixed to the shell 1. The sound insulation pad 2 includes a sound absorption layer 21 and a sound insulation layer 22. The sound absorption layer 21 is connected to the shell 1, and the sound insulation layer 22 is connected to the side of the sound absorption layer 21 away from the shell 1. The sound insulation layer 22 has a corrugated structure.

[0032] The motor controller 10 is one of the key components of a new energy vehicle, which is used to provide three-phase alternating current to the driving motor 20 to drive the vehicle. The outer surface of the shell 1 of the motor controller 10 is provided with a sound insulation pad 2, which can absorb and isolate the noise generated by the motor controller 10 during operation. The sound absorption layer 21 and the sound insulation layer 22 of the sound insulation pad 2 can be arranged along the thickness direction Z of the sound insulation pad 2. Among them, the sound absorption layer 21 is used to absorb sound waves, and the sound absorption layer 21 can convert the sound energy generated by the motor controller 10 into mechanical energy or other forms of energy, thereby reducing the sound energy to achieve the effect of noise reduction. The sound insulation layer 22 is used to reflect sound waves to play an isolation role, reducing the possibility of noise of the motor controller 10 penetrating the sound insulation pad 2 and spreading to the outside world. The sound absorption layer 21 and the sound insulation layer 22 can control the noise of the motor controller 10, and play a role in sound insulation and noise reduction.

[0033] Among them, the sound insulation layer 22 has a corrugated structure, that is, the inner surface and the outer surface of the sound insulation layer 22 are in a wavy shape, rather than smooth and flat. The sound waves emitted from the motor controller 10 are first transmitted to the sound absorption layer 21, part of the sound waves are absorbed by the sound absorption layer 21, and the sound waves not absorbed by the sound absorption layer 21 will continue to be transmitted to the sound insulation layer 22. Due to the corrugated structure of the sound insulation layer 22, the sound waves transmitted to the sound insulation layer 22 can be diffusely reflected on the surface or inside of the sound insulation layer 22, and the diffusely reflected sound waves will be dispersed in multiple directions, facilitating the sound absorption layer 21 to absorb the sound waves again. At the same time, the sound waves can also weaken or cancel each other, thereby enhancing the sound insulation effect of the sound insulation pad 2.

[0034] As can be seen from the above, by arranging the sound insulation layer 22 with a corrugated structure, the sound insulation performance of the sound insulation pad 2 can be improved. The embodiment of the present application installs the sound insulation pad 2 on the shell 1 of the motor controller 10, which reduces the possibility of the noise generated by the motor controller 10 during operation spreading outward, thereby improving the comfort of the vehicle and further improving the user experience.

[0035] In some embodiments, the sound insulation pad 2 can fully wrap the motor controller 10, that is, the sound insulation pad 2 can be arranged on the outer surface of the shell 1 of the motor controller 10, thereby increasing the effective area of the sound insulation pad 2 to reliably insulate the motor controller 10 and reduce the possibility of the noise generated by the motor controller 10 spreading outward.

[0036] In some embodiments, the motor controller 10 is integrated with the driving motor 20 and a transmission structure, so that the motor controller 10 and other components such as the driving motor 20 can be arranged compactly, thereby improving the utilization rate of the internal space of the vehicle and optimizing the layout of the internal space of the vehicle. The above-mentioned sound insulation pad 2 is arranged on the outer side of the shell 1 of the motor controller 10, which occupies less space, further improving the utilization rate of the internal space of the vehicle.

[0037] As shown in Figure 3 and Figure 4 shown, in a possible implementation, the corrugated structure includes protruding portions 221 and recessed portions 222, along the thickness direction Z of the sound insulation pad 2, the protruding portions 221 protrude away from the sound absorption layer 21, and the recessed portions 222 recess toward the sound absorption layer 21.

[0038] The protruding portions 221 and the recessed portions 222 can be continuously and alternately arranged along the length direction X of the sound insulation pad 2 and the width direction Y of the sound insulation pad 2. The sound waves transmitted to the sound insulation layer 22 can be diffusely reflected on the protruding portions 221 and / or the recessed portions 222. By arranging the protruding portions 221 and the recessed portions 222, it is beneficial for the sound waves to be diffusely reflected on the surface or inside of the sound insulation layer 22, thereby facilitating the sound absorption layer 21 to absorb the sound waves, so as to improve the sound insulation and noise reduction effect of the sound insulation pad 2.

[0039] As shown in Figure 3 and Figure 4 shown, in a possible implementation, the protruding portions 221 and the recessed portions 222 are both arc-shaped. Specifically, the shapes of the protruding portions 221 and the recessed portions 222 are similar to “U” shape, and both of them are free of edges. Such design is beneficial for the sound waves to be diffusely reflected on the surface or inside of the sound insulation layer 22, thereby improving the sound insulation and noise reduction effect of the sound insulation pad 2, and on the other hand, reducing the possibility of stress concentration of the protruding portions 221 and the recessed portions 222, improving the stability of the structure of the sound insulation layer 22, thereby facilitating to improve the reliability of the sound insulation pad 2 as a whole, and prolong the service life of the sound insulation pad 2.

[0040] As shown in Figure 4 shown, in a possible implementation, the sound insulation layer 22 includes a PET (polyethylene terephthalate) layer 223 and a PA (polyamide) layer 224, along the thickness direction Z of the sound insulation pad 2, the PET layer 223 is connected with the sound absorption layer 21 through the PA layer 224.

[0041] Specifically, the PET layer 223 can be a PET formed felt. Both the PET material and the PA material can have good sound insulation effect, thereby improving the sound insulation and noise reduction performance of the sound insulation pad 2, reducing the possibility of the noise generated by the motor controller 10 during operation to diffuse outward, thereby improving the comfort of the vehicle, and further improving the user experience.

[0042] In a possible implementation, along the thickness direction Z of the sound insulation pad 2, the thickness of the PET layer 223 is greater than the thickness of the PA layer 224.

[0043] As mentioned above, the PET layer 223 can be a PET formed felt, which has high strength and good heat resistance, wear resistance, corrosion resistance and shock absorption performance. The PET layer 223 can be regarded as an outer surface of the sound insulation pad 2. By increasing the thickness of the PET layer 223, the sound insulation effect of the sound insulation pad 2 can be improved, and the strength of the overall structure of the sound insulation pad 2 can be improved, thereby improving the reliability of the sound insulation pad 2 and prolonging the service life of the sound insulation pad 2.

[0044] As shown in Figure 2 in a possible implementation, along the thickness direction Z of the sound insulation pad 2, one end of the sound absorption layer 21 is attached to the shell 1, and the other end of the sound absorption layer 21 is attached to the sound insulation layer 22.

[0045] The attachment of the sound absorption layer 21 to the shell 1 can increase the contact area between the sound absorption layer 21 and the shell 1, thereby improving the sound insulation and noise reduction effect of the sound insulation pad 2 on the motor controller 10, and improving the stability of the installation of the sound insulation pad 2. The attachment of the sound absorption layer 21 to the sound insulation layer 22, i.e. the connection between the sound absorption layer 21 and the sound insulation layer 22 also has a corrugated structure, which increases the contact area between the sound absorption layer 21 and the sound insulation layer 22, thereby improving the sound absorption effect of the sound absorption layer 21 and the reliability of the overall sound insulation pad 2.

[0046] In a possible implementation, the sound absorption layer 21 is a PU (polyurethane) layer. The PU material has good sound absorption performance, and the setting of the PU layer can improve the noise reduction effect of the sound insulation pad 2 and reduce the possibility of the noise generated by the motor controller 10 during operation spreading outward.

[0047] In summary, the sound insulation pad 2 of the embodiment of the present application can include PU material, PET material and PA material. The above-mentioned materials are easy to process and form, thereby facilitating the mass production of the sound insulation pad 2 and reducing the production cost of the sound insulation pad 2.

[0048] In some embodiments, the PET layer, the PA layer and the PU layer described above can be integrally formed.

[0049] As shown in Figure 4 in a possible implementation, along the thickness direction Z of the sound insulation pad 2, the thickness of the sound absorption layer 21 is greater than the thickness of the sound insulation layer 22.

[0050] By increasing the thickness of the sound absorption layer 21, the sound absorption performance of the sound absorption layer 21 can be improved, so that the sound absorption layer 21 can better absorb the sound waves emitted by the motor controller 10, and the possibility of the noise generated by the motor controller 10 during operation spreading outward can be reduced.

[0051] As shown in Figure 2As shown, in a possible implementation, the sound insulation pad 2 has at least one first mounting hole 23, the first mounting hole 23 penetrates the sound insulation layer 22 and the sound absorption layer 21, the shell 1 has at least one second mounting hole 11, and the fastener 3 is arranged in the first mounting hole 23 and the second mounting hole 11, so that the sound insulation pad 2 is fixedly connected with the shell 1 through the fastener 3.

[0052] The motor controller 10 will vibrate during operation, and the connection of the sound insulation pad 2 and the shell 1 through the fastener 3 can improve the stability of the installation of the sound insulation pad 2, reduce the possibility that the sound insulation pad 2 is affected by the vibration of the motor controller 10 and falls off from the shell 1, so that the sound insulation pad 2 has a more stable and reliable sound insulation and noise reduction effect on the motor controller 10, and at the same time, the installation difficulty of the sound insulation pad 2 is reduced, and the sound insulation pad 2 is convenient to assemble to the shell 1.

[0053] The embodiment of the application further provides a vehicle, and the vehicle has the motor controller 10 in any one of the above. The shell 1 of the motor controller 10 is provided with the sound insulation pad 2, which reduces the possibility that the noise generated by the motor controller 10 during operation is diffused outward, thereby improving the comfort of the vehicle and further improving the experience of the user.

[0054] The above is only a preferred embodiment of the application and is not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An electric motor controller characterized by, The application relates to a motor controller for a vehicle. The motor controller comprises: a housing; a sound insulation pad fixed to the housing; 2. The motor controller of claim 1, wherein, wherein the sound insulation pad comprises a sound absorption layer and a sound insulation layer, the sound absorption layer is connected to the housing, the sound insulation layer is connected to the sound absorption layer away from the housing, and the sound insulation layer has a corrugated structure. The corrugated structure comprises a convex part and a concave part.

3. The motor controller of claim 2, wherein, In the thickness direction of the sound insulation pad, the convex part protrudes away from the sound absorption layer, and the concave part is recessed towards the sound absorption layer.

4. The motor controller of claim 1, wherein, The convex part and the concave part are both arc-shaped. The sound insulation layer comprises a PET layer and a PA layer.

5. The motor controller of claim 4, wherein, In the thickness direction of the sound insulation pad, the PET layer is connected to the sound absorption layer through the PA layer.

6. The motor controller of any one of claims 1 to 5, wherein, In the thickness direction of the sound insulation pad, the thickness of the PET layer is greater than that of the PA layer.

7. The motor controller of any one of claims 1 to 5, wherein, In the thickness direction of the sound insulation pad, one end of the sound absorption layer is attached to the housing, and the other end of the sound absorption layer is attached to the sound insulation layer.

8. The motor controller of any one of claims 1 to 5, wherein, The sound absorption layer is a PU layer.

9. The motor controller of any one of claims 1 to 5, wherein, In the thickness direction of the sound insulation pad, the thickness of the sound absorption layer is greater than that of the sound insulation layer. The sound insulation pad has at least one first mounting hole penetrating through the sound insulation layer and the sound absorption layer.

10. A vehicle characterized by comprising: The housing has at least one second mounting hole, and a fastener is arranged in the first mounting hole and the second mounting hole, so that the sound insulation pad is fixedly connected to the housing through the fastener. The vehicle has the motor controller according to any one of claims 1 to 9.

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