Acoustic package for new energy vehicle motor

Abstract

The utility model discloses a new energy automobile motor acoustic package relates to new energy automobile motor acoustic package technical field, include: main guard cover, the inner wall four corners of main guard cover all are established with fixed slot, the both ends of main guard cover all are slidably arranged with front end cover and rear end cover. The utility model discloses through with the automobile motor installation in main guard cover on the sound absorption board, and the front end cover slides to the front end of main guard cover, and the fixed rod is aligned with the fixed slot, and rotates the rotating cylinder, and the rotating ring rotates in the cavity, and the protruding block extrudes one end of fixed rod, and the fixed rod is pushed outward, and four fixed rods are simultaneously slid and are connected in the fixed slot, and the front end cover is fixed on main guard cover, and the rear end cover is operated similarly, realizes acoustic package splicing installation, when needs to disassemble, and the fixed rod can be slid out from the fixed slot by reversing the rotating cylinder, and can be disassembled, and this structure design realizes acoustic package disassembly and installation quickly, improves the convenience when using acoustic package.

Description

Technical Field

[0001] This utility model relates to the field of acoustic package technology for new energy vehicle motors, specifically to an acoustic package for new energy vehicle motors. Background Technology

[0002] The electric motor in a new energy vehicle is the core power source, responsible for converting the electrical energy stored in the battery into mechanical energy to drive the wheels. Its performance directly determines the vehicle's power, range, and driving experience. New energy vehicle motors generate electromagnetic noise, mechanical noise, and aerodynamic noise during operation. This noise is transmitted to the cabin through the vehicle's structure, affecting the driving experience. Therefore, acoustic packages are installed on the exterior of the electric motor in new energy vehicles. The first layer of the acoustic package is PET material with sound insulation and aesthetic functions; the second layer is PA / PE molding material that provides bonding and some sound insulation; and the third layer is PU foam material with good sound absorption properties. These materials work together to reduce and control the noise generated by the motor during operation through absorption and blocking.

[0003] Currently, the acoustic package of most new energy vehicle motors mainly consists of a main cover, a front cover, and a rear cover. When wrapping the motor to reduce noise, the main cover, front cover, and rear cover need to be spliced ​​together. However, the traditional method is to use multiple bolts, multiple clips, or multiple sets of Velcro for fixing. This method is cumbersome and time-consuming to install and disassemble, which affects the efficiency of the acoustic package assembly box disassembly and disassembly, making it inconvenient to use. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an acoustic package for electric motors of new energy vehicles, which can effectively solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acoustic package for a new energy vehicle motor, comprising: a main cover, wherein a fixing groove is provided at each of the four corners of the inner wall of the main cover; a front cover and a rear cover are slidably provided at both ends of the main cover; a cavity is provided on one side of the interior of the front cover; a rotating ring is rotatably connected to the inner wall of the cavity; a rotating cylinder is fixedly connected to one side of the rotating ring, and the rotating cylinder extends out of the front cover; fixing rods are slidably connected at each of the four corners of the front cover; one end of each of the four fixing rods extends into the cavity; one end of each of the four fixing rods abuts against a protrusion; one end of each of the four protrusions is fixedly connected to the outer surface of the rotating ring; and the other ends of the four fixing rods are respectively engaged in the four fixing grooves.

[0006] As a further preferred embodiment of this technical solution, an installation groove is provided on the other side of the interior of the front end cover, an extension rod is fixedly connected to the outer surface of the fixing rod, the extension rod is slidably connected to the inner wall of the installation groove, and a spring is fixedly connected between the extension rod and the installation groove.

[0007] As a further preferred embodiment of this technical solution, a limiting groove is formed on the outer surface of the front cover, and a limiting strip is fixedly connected to the inner wall of the main protective cover, with the limiting strip slidingly connected within the limiting groove.

[0008] As a further preferred embodiment of this technical solution, a toothed block is fixedly connected to one side of the outer surface of the rotating cylinder, and a threaded hole is opened through the upper end of the main cover near the edge. A screw is threadedly connected to the inner wall of the threaded hole, and a lifting frame is rotatably connected to one end of the screw. A locking block is fixedly connected to the lower end of the lifting frame.

[0009] As a further preferred embodiment of this technical solution, the inner wall of the main protective cover is fixedly connected with a sound-insulating PE molded sponge, and the inner wall of the sound-insulating PE molded sponge is fixedly connected with a sound-absorbing PU foam sponge.

[0010] As a further preferred embodiment of this technical solution, the inner wall of the sound-absorbing PU foam sponge is fixedly connected with a protruding strip, and the bottom of the main protective cover is fixedly connected with a sound-absorbing plate.

[0011] As a further preferred embodiment of this technical solution, the lower end of the main protective cover is fixedly connected to a base, and mounting holes are provided through the four corners of the base.

[0012] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0013] 1. This utility model involves mounting the car motor on the sound-absorbing panel of the main cover, sliding the front cover to the front of the main cover, aligning the fixing rod with the fixing groove, rotating the rotating cylinder, causing the rotating ring to rotate within the cavity, and pressing one end of the fixing rod with the protrusion, pushing the fixing rod outward. Simultaneously, all four fixing rods slide and engage in the fixing groove, fixing the front cover onto the main cover. The rear cover is operated in the same way, achieving the splicing and installation of the acoustic package. When disassembly is required, simply rotate the rotating cylinder in the opposite direction to slide the fixing rod out of the fixing groove for disassembly. This structural design allows for quick disassembly and installation of the acoustic package, improving its ease of use.

[0014] 2. This utility model uses a rotating screw to move along the threaded hole on the main cover, pushing the lifting frame downwards so that the locking block engages with the toothed block, thus fixing the rotating cylinder and preventing the front cover from falling off the main cover after it is fixed to the main cover, ensuring the stability of the acoustic package splicing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an exploded view showing the connection relationship between the main protective cover, the front cover, and the rear cover of this utility model.

[0018] Figure 3 for Figure 1 A magnified view of a portion of region A in the middle;

[0019] Figure 4 This is a cross-sectional structural diagram of the front end cover in this utility model;

[0020] Figure 5 for Figure 4 A magnified view of a portion of region B in the middle.

[0021] 1. Main cover; 11. Front cover; 12. Base; 13. Mounting hole; 14. Rear cover; 15. Sound-insulating PE foam; 16. Sound-absorbing PU foam; 17. Raised strip; 18. Sound-absorbing panel; 2. Rotating cylinder; 21. Tooth block; 22. Fixing rod; 23. Fixing groove; 24. Cavity; 25. Rotating ring; 26. Mounting groove; 27. Raised block; 28. Spring; 3. Limiting strip; 31. Limiting groove; 4. Screw; 41. Lifting frame; 42. Locking block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] This utility model provides a technical solution: such as Figure 1 - Figure 5As shown in this embodiment, an acoustic package for a new energy vehicle motor includes: a main cover 1, with fixing grooves 23 at the four corners of the inner wall of the main cover 1; a front cover 11 and a rear cover 14 slidably disposed at both ends of the main cover 1; a cavity 24 is formed on one side of the interior of the front cover 11; a rotating ring 25 is rotatably connected to the inner wall of the cavity 24; a rotating cylinder 2 is fixedly connected to one side of the rotating ring 25 and extends out of the front cover 11; fixing rods 22 are slidably connected at the four corners of the front cover 11; one end of each of the four fixing rods 22 extends into the cavity 24; one end of each of the four fixing rods 22 abuts against a protrusion 27; one end of each of the four protrusions 27 is fixedly connected to the outer surface of the rotating ring 25; and the other ends of the four fixing rods 22 are respectively engaged in the four fixing grooves 23.

[0025] By mounting the car motor on the main cover 1 on the sound-absorbing panel 18, sliding the front cover 11 to the front of the main cover 1, and aligning the fixing rod 22 with the fixing groove 23, rotating the rotating cylinder 2 causes the rotating ring 25 to rotate within the cavity 24, and the protrusion 27 to press one end of the fixing rod 22, pushing the fixing rod 22 outward. The four fixing rods 22 simultaneously slide and engage in the fixing groove 23, fixing the front cover 11 onto the main cover 1. The rear cover 14 is operated in the same way, thus achieving the splicing and installation of the acoustic package. When disassembly is required, rotating the rotating cylinder 2 in the opposite direction will slide the fixing rod 22 out of the fixing groove 23, allowing for disassembly. This structural design enables quick disassembly and installation of the acoustic package, improving the convenience of using the acoustic package.

[0026] It should be noted that the front cover 11 and the rear cover 14 have the same structure, and the disassembly and assembly operations are the same.

[0027] like Figure 4 and Figure 5 As shown, an installation groove 26 is provided on the other side of the interior of the front cover 11. An extension rod is fixedly connected to the outer surface of the fixing rod 22. The extension rod is slidably connected to the inner wall of the installation groove 26. A spring 28 is fixedly connected between the extension rod and the installation groove 26. The spring 28 is used to pull the fixing rod 22 inward. When the protrusion 27 releases the restriction of the fixing rod 22, the elastic force of the spring 28 itself will pull the fixing rod 22 back, causing the fixing rod 22 to slide out of the fixing groove 23 and release the restriction of the front cover 11 on the main cover 1.

[0028] like Figure 2 , Figure 4 and Figure 5 As shown, a limiting groove 31 is provided on the outer surface of the front cover 11, and a limiting strip 3 is fixedly connected to the inner wall of the main cover 1. The limiting strip 3 is slidably connected in the limiting groove 31. The limiting strip 3 and the limiting groove 31 cooperate to limit the rotation of the front cover 11 and prevent the front cover 11 from rotating when the rotating cylinder 2 is rotated. A limiting groove 31 is also provided on the rear cover 14.

[0029] like Figure 4 and Figure 5 As shown, a toothed block 21 is fixedly connected to one side of the outer surface of the rotating cylinder 2. A threaded hole is opened through the upper end of the main cover 1 near the edge. A screw 4 is threadedly connected to the inner wall of the threaded hole. A lifting frame 41 is rotatably connected to one end of the screw 4. A locking block 42 is fixedly connected to the lower end of the lifting frame 41. When the screw 4 is rotated, the screw 4 moves along the threaded hole on the main cover 1, pushing the lifting frame 41 downward, so that the locking block 42 is engaged with the toothed block 21, thus fixing the rotating cylinder 2 and preventing the front cover 11 from falling off the main cover 1 after it is fixed on the main cover 1, ensuring the stability of the acoustic package splicing.

[0030] like Figure 2 As shown, the inner wall of the main cover 1 is fixedly connected with a sound-insulating PE foam 15, and the inner wall of the sound-insulating PE foam 15 is fixedly connected with a sound-absorbing PU foam 16. The outer shell of the main cover 1 is made of PET material, which has a sound insulation effect. The sound-insulating PE foam 15 is used for sound insulation, and the sound-absorbing PU foam 16 is used for sound absorption. These materials work together to reduce the noise generated when the motor is running and ensure the driver's driving experience.

[0031] like Figure 2 As shown, the inner wall of the sound-absorbing PU foam sponge 16 is fixedly connected with protruding strips 17, and the bottom of the main cover 1 is fixedly connected with a sound-absorbing plate 18. Multiple protruding strips 17 are provided on the inner wall of the sound-absorbing PU foam sponge 16 and are evenly distributed. When the noise sound waves generated by the motor come into contact with the protruding strips 17, they can not only act on the top of the protrusions, but also penetrate into the gaps and sides between the protrusions, which is equivalent to indirectly expanding the contact range between the sound waves and the material, thereby capturing more sound wave energy and improving sound absorption. At the same time, the sound-absorbing plate 18 absorbs the noise at the bottom of the motor.

[0032] like Figure 1 and Figure 2 As shown, a base 12 is fixedly connected to the lower end of the main cover 1, and mounting holes 13 are provided through the four corners of the base 12; the base 12 and the mounting holes 13 are used to install the acoustic package consisting of the main cover 1, the front cover 11 and the rear cover 14 inside the vehicle.

[0033] This utility model provides an acoustic package for electric motors in new energy vehicles, and its specific working principle is as follows:

[0034] When using an acoustic package for sound insulation and absorption of a car motor, the car motor is first installed on the main cover 1 on the sound-absorbing plate 18. The front cover 11 is slid to the front end of the main cover 1, and the fixing rod 22 is aligned with the fixing groove 23. The rotating cylinder 2 is rotated, and the rotating ring 25 rotates in the cavity 24. The protrusion 27 presses one end of the fixing rod 22, pushing the fixing rod 22 outward. The four fixing rods 22 slide and engage in the fixing groove 23 at the same time, fixing the front cover 11 onto the main cover 1. The rear cover 14 is operated in the same way to realize the splicing and installation of the acoustic package. After installation, the noise generated by the motor operation is absorbed and insulated by the properties of the sound-insulating PE foam 15, the sound-absorbing PU foam 16, the protrusion 17, and the main cover 1, ensuring the driver's driving experience.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An acoustic package for a new energy vehicle motor, characterized in that, include: The main cover (1) has a fixing groove (23) at each of the four corners of its inner wall. The main cover (1) has a front cover (11) and a rear cover (14) slidably disposed at both ends. The front cover (11) has a cavity (24) on one side inside. The inner wall of the cavity (24) is rotatably connected to a rotating ring (25). A rotating cylinder (2) is fixedly connected to one side of the rotating ring (25), and the rotating cylinder (2) extends out of the front cover (11). The front cover (11) has a fixing rod (22) slidably connected at each of the four corners. One end of each of the four fixing rods (22) extends into the cavity (24), and one end of each of the four fixing rods (22) abuts against a protrusion (27). One end of each of the four protrusions (27) is fixedly connected to the outer surface of the rotating ring (25), and the other end of each of the four fixing rods (22) is respectively engaged in the four fixing grooves (23).

2. The acoustic package for a new energy vehicle motor according to claim 1, characterized in that: An installation groove (26) is provided on the other side of the interior of the front end cover (11). An extension rod is fixedly connected to the outer surface of the fixing rod (22). The extension rod is slidably connected to the inner wall of the installation groove (26). A spring (28) is fixedly connected between the extension rod and the installation groove (26).

3. The acoustic package for a new energy vehicle motor according to claim 1, characterized in that: The outer surface of the front cover (11) is provided with a limiting groove (31), and the inner wall of the main cover (1) is fixedly connected with a limiting strip (3), which is slidably connected in the limiting groove (31).

4. The acoustic package for a new energy vehicle motor according to claim 1, characterized in that: A toothed block (21) is fixedly connected to one side of the outer surface of the rotating cylinder (2). A threaded hole is opened through the upper end of the main cover (1) near the edge. A screw (4) is threadedly connected to the inner wall of the threaded hole. A lifting frame (41) is rotatably connected to one end of the screw (4). A locking block (42) is fixedly connected to the lower end of the lifting frame (41).

5. The acoustic package for a new energy vehicle motor according to claim 1, characterized in that: The inner wall of the main protective cover (1) is fixedly connected with a sound-insulating PE molded sponge (15), and the inner wall of the sound-insulating PE molded sponge (15) is fixedly connected with a sound-absorbing PU foam sponge (16).

6. The acoustic package for a new energy vehicle motor according to claim 5, characterized in that: The inner wall of the sound-absorbing PU foam sponge (16) is fixedly connected with a protruding strip (17), and the bottom of the main cover (1) is fixedly connected with a sound-absorbing plate (18).

7. The acoustic package for a new energy vehicle motor according to claim 1, characterized in that: The lower end of the main cover (1) is fixedly connected to a base (12), and mounting holes (13) are provided through the four corners of the base (12).

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