Noise reduction device for compressor motor of new energy vehicle

Abstract

The invention relates to the technical field of motor noise reduction, in particular to a noise reduction device for a compressor motor of a new energy vehicle, which comprises two noise reduction shells, the two noise reduction shells are connected with each other through a plurality of bolts, a sound insulation cavity is formed in each noise reduction shell, and a noise reduction heat dissipation mechanism is arranged in each sound insulation cavity. Noise entering the sound insulation cavity is absorbed through the noise reduction and heat dissipation mechanism, and a plurality of heat dissipation plates are fixedly connected into the sound insulation cavity; when the rotating speed of the motor is increased, noise and heat generated by the motor are increased, the heat dissipation plates enable a water source in the water storage tank to generate steam, the steam enters the guide box to enable the buffer transmission mechanism to drive the pushing mechanism to move, the pushing mechanism enables the noise reduction and heat dissipation mechanism to make contact with the heat dissipation plates, and meanwhile a plurality of independent small cavities are formed. The noise reduction effect is improved through the arrangement of the multiple small cavities, and meanwhile cooling liquid is conveyed to the noise reduction and heat dissipation mechanism through the liquid guide connecting mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of motor noise reduction technology, in particular to a new energy vehicle compressor motor noise reduction device. BACKGROUND

[0002] As the patent number CN104716772B, it discloses a kind of motor active noise reduction device for electric or hybrid vehicle, it includes noise reduction shell and controller, the noise reduction shell is sleeved on motor body, gap is equipped between the noise reduction shell and motor body, multiple loudspeakers are uniformly distributed on the inner wall of the noise reduction shell, the controller is connected with loudspeaker, for driving the loudspeaker generates the sound wave of opposite phase, same amplitude with the noise generated by motor to offset noise.

[0003] The above-mentioned patent is sleeved on the motor body by noise reduction shell, and multiple loudspeakers are installed in the noise reduction shell, the sound wave of opposite phase, same amplitude with noise signal is generated by loudspeaker, to offset noise signal, so as to realize noise reduction, but the above-mentioned scheme has the following shortcomings: for pure electric drive new energy vehicle, since the compressor of new energy vehicle is driven by motor, the mode in the above-mentioned patent can reduce the noise of motor, but the noise and heat emitted by motor at high speed and low speed are not the same, the above-mentioned patent can realize synchronous noise reduction, but cannot improve or reduce the corresponding heat dissipation effect while synchronous noise reduction according to the speed of motor, therefore, we launch a new energy vehicle compressor motor noise reduction device. SUMMARY

[0004] The present application aims to provide a new energy vehicle compressor motor noise reduction device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A new energy vehicle compressor motor noise reduction device, comprising two noise reduction housings, the two noise reduction housings are connected to each other by a plurality of bolts, a sound insulation cavity is formed in the noise reduction housing, a noise reduction and heat dissipation mechanism is arranged in the sound insulation cavity, the noise reduction and heat dissipation mechanism absorbs the noise entering the sound insulation cavity, a plurality of heat dissipation plates are fixedly connected in the sound insulation cavity, a microswitch is fixedly installed on the upper end of the heat dissipation plate, and the heat dissipation plate extends into the external environment at one end. The upper end of the heat dissipation and noise reduction mechanism is connected with the pushing mechanism, the pushing mechanism is arranged in the connecting cavity, the connecting cavity is arranged in the noise reduction shell, the connecting cavity is communicated with the sound insulation cavity, the heat dissipation and noise reduction mechanism is driven to move by the pushing mechanism, so that the heat dissipation and noise reduction mechanism is in contact with the plurality of heat dissipation plates, one end of the noise reduction shell is fixedly connected with the water storage tank, the plurality of heat dissipation plates pass through the water storage tank, and the water storage tank is provided with a water source; The upper end of the noise reduction shell and the upper end of the water storage tank are fixedly connected with the guide box, the guide box and the water storage tank are communicated with each other through the connecting hole, the connecting hole is arranged in the water storage tank and the connecting box, the buffer transmission mechanism is arranged in the guide box, one end of the buffer transmission mechanism extends into the connecting cavity and is connected with the pushing mechanism, the water source in the water storage tank is heated when the heat dissipation plate dissipates heat, and the steam generated by the water source enters the guide box and drives the buffer transmission mechanism to move; One end of the noise reduction shell is fixedly connected with the first arc-shaped plate, a plurality of cavities are arranged in the first arc-shaped plate, and a liquid guide connecting mechanism is arranged in the cavities.

[0006] Preferably, the noise reduction and heat dissipation mechanism comprises a plurality of heat dissipation rods, the heat dissipation rods are slidably connected in the sound insulation cavity, U-shaped connecting cavities are arranged in the heat dissipation rods, the plurality of heat dissipation rods are connected with each other through a plurality of elastic noise reduction plates, the elastic noise reduction plates away from the heat dissipation rods are fixedly connected with the sound insulation cavity, a connecting rib is fixedly connected to the upper end of the elastic noise reduction plate, and the upper end of the connecting rib is fixedly connected with the sound insulation cavity.

[0007] Preferably, the pushing mechanism comprises a second arc-shaped plate, the second arc-shaped plate is slidably connected in the connecting cavity, a connecting rod is movably connected to the upper end of the heat dissipation rod, the connecting rod away from the heat dissipation rod extends into the connecting cavity and is movably connected with the lower end of the second arc-shaped plate, a plurality of supporting springs are fixedly connected to one side of the second arc-shaped plate, and the other end of the supporting spring is fixedly connected with the connecting cavity.

[0008] Preferably, the buffer transmission mechanism comprises a circular box, the circular box is arranged in the guide box, one end of the circular box extends into the connecting cavity and is fixedly connected with the second arc-shaped plate, a T-shaped connecting rod is slidably connected in the other end of the circular box, a piston plate is fixedly connected to the end of the T-shaped connecting rod away from the circular box, the piston plate is slidably connected in the guide box, a connecting spring is fixedly connected in the circular box, and the other end of the connecting spring is fixedly connected with the T-shaped connecting rod. Preferably, the liquid guide connecting mechanism comprises a sliding plate, the sliding plate is slidably connected in the cavity, two connecting pipes are fixedly connected on one side of the sliding plate, the connecting pipes are arranged in an arc shape away from the sliding plate and extend into the sound insulation cavity, two hoses are fixedly connected on the side of the sliding plate away from the connecting pipes, the hoses are communicated with the connecting pipes, the hoses extend into the external environment through the first arc-shaped plate, a reset spring is fixedly connected on one side of the sliding plate, and the other end of the reset spring is fixedly connected with the cavity.

[0009] Compared with the prior art, the beneficial effects of the present application are that the motor is cooled by the arrangement of the plurality of heat dissipation plates, the noise is reduced by the arrangement of the noise reduction shell, the sound insulation cavity and the noise reduction and heat dissipation mechanism, when the motor speed becomes larger, the noise and heat generated by the motor become larger, the water source in the water storage tank generates steam through the heat dissipation plates, the steam enters the guide box to drive the buffer transmission mechanism to move the pushing mechanism, the pushing mechanism contacts the noise reduction and heat dissipation mechanism with the plurality of heat dissipation plates, and a plurality of small chambers are formed, the noise reduction effect is improved through the arrangement of the plurality of small chambers, and the cooling liquid is delivered to the noise reduction and heat dissipation mechanism through the liquid guide connecting mechanism, so that the noise reduction is improved and the heat dissipation of the motor is further strengthened. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0011] Figure 2 It is a schematic diagram of the three-dimensional structure of the connection relationship between the heat dissipation plate and the water storage tank of the present application.

[0012] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection relationship between the heat dissipation plate and the microswitch of the present application.

[0013] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application.

[0014] Figure 5 It is a schematic diagram of the three-dimensional structure of the first arc-shaped plate of the present application.

[0015] Figure 6 It is a schematic diagram of the three-dimensional structure of the present application.

[0016] Figure 7 It is a schematic diagram of the three-dimensional structure of the present application.

[0017] Figure 8 It is a schematic diagram of the three-dimensional structure of the connection relationship between the sliding plate and the connecting pipe of the present application.

[0018] Figure 9 It is a schematic diagram of the three-dimensional structure of the heat dissipation rod of the present application.

[0019] Figure 10This is a three-dimensional structural diagram illustrating the connection relationship between the connecting rod and the second arc-shaped plate of the present invention.

[0020] In the diagram: 1. Noise-reducing outer shell; 2. First arc-shaped plate; 3. Bolt; 4. Heat sink; 5. Water tank; 6. Guide box; 7. Hose; 8. Heat sink rod; 9. Return spring; 10. Cavity; 11. Slide plate; 12. Connecting pipe; 13. Sound insulation cavity; 14. Connecting cavity; 15. Second arc-shaped plate; 16. T-shaped connecting rod; 17. Connecting spring; 18. Circular box; 19. Connecting rod; 20. U-shaped connecting cavity; 21. Connecting hole; 22. Piston plate; 23. Elastic noise-reducing plate; 24. Connecting rib; 25. Support spring; 26. Micro-touch switch. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-10 The present invention provides a technical solution: Example 1: A noise reduction device for a compressor motor in a new energy vehicle includes two noise reduction housings 1. The material of the noise reduction housings 1 can be a material with sound absorption and noise reduction effects, such as aluminum foam. The two noise reduction housings 1 are connected to each other by several bolts 3. The compressor motor is placed between the two noise reduction housings 1. After placement, the two noise reduction housings 1 are fixed by several bolts 3. A sound insulation cavity 13 is formed inside the noise reduction housing 13. A noise reduction and heat dissipation mechanism is set inside the sound insulation cavity 13 to absorb the noise entering the sound insulation cavity 13. Several heat dissipation plates 4 are fixedly connected inside the sound insulation cavity 13. The material of the heat dissipation plates 4 can be selected from... Made of corrosion-resistant and thermally conductive copper alloy, the heat sink 4 is placed inside the noise reduction housing 1 so that the heat generated by the motor can be absorbed by the heat sink 4 to the maximum extent. The upper end of the heat sink 4 is arc-shaped and concave. A micro-touch switch 26 is fixedly installed on the upper end of the heat sink 4. The micro-touch switch 26 can be selected with appropriate size and model when in use. When several micro-touch switches 26 are pressed, the external cooling equipment will allow the coolant to enter the hose 7. When one of the several micro-touch switches 26 is depressed, the coolant will stop entering the hose 7 and one end of the heat sink 4 will extend into the external environment. The upper end of the heat dissipation and noise reduction mechanism is connected with the pushing mechanism, the pushing mechanism is arranged in the connecting cavity 14, the connecting cavity 14 is arranged in the noise reduction shell 1, the connecting cavity 14 is communicated with the sound insulation cavity 13, the heat dissipation and noise reduction mechanism is driven to move by the pushing mechanism, so that the heat dissipation and noise reduction mechanism is in contact with the plurality of heat dissipation plates 4, one end of the noise reduction shell 1 is fixedly connected with the water storage tank 5, the plurality of heat dissipation plates 4 pass through the water storage tank 5, and the water storage tank 5 is provided with a water source; The upper end of the noise reduction shell 1 and the upper end of the water storage tank 5 are fixedly connected with the guide box 6, the guide box 6 and the water storage tank 5 are communicated with each other through the connecting hole 21, the connecting hole 21 is arranged in the water storage tank 5 and the guide box 6, the guide box 6 is provided with a buffer transmission mechanism, one end of the buffer transmission mechanism extends into the connecting cavity 14 and is connected with the pushing mechanism, the water source in the water storage tank 5 is heated when the heat dissipation plate 4 is used for heat dissipation, and the steam generated by the water source enters the guide box 6 and drives the buffer transmission mechanism to move; One end of the noise reduction shell 1 is fixedly connected with the first arc-shaped plate 2, a plurality of cavities 10 are arranged in the first arc-shaped plate 2, the cavities 10 are provided with liquid guide connecting mechanisms, one end of the liquid guide connecting mechanism extends into the sound insulation cavity 13, and after the liquid guide connecting mechanism is connected with the noise reduction and heat dissipation mechanism, the cooling liquid in the external cooling equipment can enter the noise reduction and heat dissipation mechanism, so that the noise reduction and heat dissipation mechanism can improve the heat dissipation effect of the motor while improving the noise reduction effect.

[0023] Embodiment 2 On the basis of embodiment 1, in order to improve the sound insulation and noise reduction effect under the condition of high speed of the motor, the noise reduction and heat dissipation mechanism comprises a plurality of heat dissipation rods 8, the heat dissipation rods 8 are slidably connected in the sound insulation cavity 13, the heat dissipation rods 8 are provided with U-shaped connecting cavities 20, the plurality of heat dissipation rods 8 are connected with each other through a plurality of elastic noise reduction plates 23, the elastic noise reduction plates 23 located on the left side and the right side are fixedly connected with the sound insulation cavity 13 away from one end of the heat dissipation rod 8, the upper end of the elastic noise reduction plate 23 is fixedly connected with the connecting rib 24, the upper end of the connecting rib 24 is fixedly connected with the sound insulation cavity 13, the part of the elastic noise reduction plate 23 that is not connected with the sound insulation cavity 13 is tightly attached to the sound insulation cavity 13, and the elastic noise reduction plate 23 is made of rubber sound-absorbing material, such as closed-cell sponge rubber and foamed rubber; The pushing mechanism comprises a second arc-shaped plate 15 slidably connected in the connecting cavity 14, a connecting rod 19 movably connected to the upper end of the heat dissipation rod 8, a plurality of connecting rods 19 extending into the connecting cavity 14 from the end of the heat dissipation rod 8 and movably connected to the lower end of the second arc-shaped plate 15, a plurality of supporting springs 25 fixedly connected to one side of the second arc-shaped plate 15, the other ends of the supporting springs 25 fixedly connected to the connecting cavity 14, the second arc-shaped plate 15 moving to drive the plurality of connecting rods 19 to move, the connecting rod 19 moving to drive the heat dissipation rod 8 connected to the lower end of the connecting rod 19 to move downward, and the buffering transmission mechanism comprising a circular box 18 arranged in the guide box 6, the circular box 18 extending into the connecting cavity 14 from one end and fixedly connected to the second arc-shaped plate 15, a T-shaped connecting rod 16 slidably connected in the other end of the circular box 18, a piston plate 22 fixedly connected to the end of the T-shaped connecting rod 16 away from the circular box 18, the piston plate 22 slidably connected in the guide box 6, a connecting spring 17 fixedly connected in the circular box 18, and the other end of the connecting spring 17 fixedly connected to the T-shaped connecting rod 16 The liquid guiding connecting mechanism comprises a sliding plate 11 slidably connected in the cavity 10, two connecting pipes 12 fixedly connected in one side of the sliding plate 11, the ends of the connecting pipes 12 away from the sliding plate 11 arranged in an arc shape and extending into the sound insulation cavity 13, two flexible pipes 7 fixedly connected to the side of the sliding plate 11 away from the connecting pipes 12, the flexible pipes 7 in communication with the connecting pipes 12, the ends of the flexible pipes 7 away from the sliding plate 11 extending into the external environment through the first arc-shaped plate 2, a reset spring 9 fixedly connected to one side of the sliding plate 11, the other end of the reset spring 9 fixedly connected to the cavity 10, when the heat dissipation rod 8 moves downward, the extending ends of the connecting pipes 12 are arranged in an arc shape, so that the connecting pipes 12 are pressed when the heat dissipation rod 8 moves downward, at this time, the connecting pipes 12 drive the sliding plate 11 to move along the cavity 10, and the sliding plate 11 moves to compress the reset spring 9, when the two connecting pipes 12 move to the position of the U-shaped connecting cavity 20, at this time, the arc-shaped ends of the connecting pipes 12 are clamped into the U-shaped connecting cavity 20 under the elastic force of the reset spring 9.

[0024] Working principle, when in use, the compressor motor is placed between the two noise reduction housings 1, after the placement is completed, the two noise reduction housings 1 are fixed through a plurality of bolts 3, and the heat transferred by the motor to the noise reduction housing 1 can be dissipated through a plurality of heat dissipation plates 4, when the motor rotates at a large speed and generates a large amount of heat, at this time, the heat dissipation plates 4 heat the water source in the water storage tank 5 when dissipating heat, as the temperature continuously rises, the water source in the water storage tank 5 generates steam and enters the guide box 6 through the connecting hole 21, the steam entering the guide box 6 drives the piston plate 22 to move, the T-shaped connecting rod 16 drives the circular box 18 to move under the elastic force of the connecting spring 17, and the circular box 18 moves to drive the second arc-shaped plate 15 to move along the connecting cavity 14; The second arc-shaped plate 15 drives a plurality of connecting rods 19 to move when moving, the connecting rods 19 drive the heat dissipation rods 8 connected at the lower ends to move downward when moving, when the lower ends of the heat dissipation rods 8 are in contact with the upper ends of the heat dissipation plates 4, the second arc-shaped plate 15 cannot move at this time, the excess steam continues to push the piston plate 22 after entering into the guide box 6, the T-shaped connecting rod 16 will move along the circular box 18 at this time, the T-shaped connecting rod 16 will compress the connecting spring 17, achieving buffering, and the condensed steam reenters into the water storage tank 5 through the connecting hole 21 for storage; After the heat dissipation rods 8 are in contact with the upper ends of the heat dissipation plates 4, the elastic noise reduction plates 23 are bent by a plurality of heat dissipation rods 8 under the limiting of the connecting ribs 24, so that the sound insulation cavities 13 are divided into a plurality of small cavities, the small cavities formed by the bent elastic noise reduction plates 23 improve noise reduction uniformity, reduce flow resistance, and improve noise reduction effect; When the heat dissipation rods 8 move downward, the connecting pipes 12 are extruded by the heat dissipation rods 8 moving downward because the extending ends of the connecting pipes 12 are arranged in an arc shape, at this time, the connecting pipes 12 drive the sliding plates 11 to move along the cavities 10, the sliding plates 11 are compressed by the movement, when the two connecting pipes 12 move to the positions of the U-shaped connecting cavities 20, the arc-shaped ends of the connecting pipes 12 are clamped into the U-shaped connecting cavities 20 under the elastic force of the return springs 9 at this time, and after the lower ends of the heat dissipation rods 8 are completely in contact with the upper ends of the heat dissipation plates 4, the micro-touch switch 26 is pressed, at this time, the external cooling equipment is started, the cooling liquid enters into one of the hoses 7 through the external cooling equipment connected with the two hoses 7, and then enters into the U-shaped connecting cavities 20 through the connecting pipes 12, the cooling liquid is cooled after entering into the U-shaped connecting cavities 20, and the cooled cooling liquid is discharged through the other hose 7; When the rotating speed of the motor decreases, the heat generated at this time also decreases relative to the high rotating speed state, the noise decreases at this time, the temperature of the heat dissipation plates 4 also decreases, the amount of steam generated in the water storage tank 5 decreases, the second arc-shaped plate 15 returns to the initial position under the elastic force of the supporting spring 25 at this time, and the heat dissipation rods 8 move upward again at this time, the micro-touch switch 26 at the upper end of the heat dissipation plate 4 is cancelled to be pressed, so that the cooling liquid stops entering into the hose 7, and the connecting pipe 12 clamped in the U-shaped connecting cavity 20 is separated when the heat dissipation rod 8 moves upward.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device for a compressor motor in a new energy vehicle, comprising two noise reduction housings, characterized in that: The two noise-reducing shells are connected to each other by a number of bolts. A sound insulation cavity is provided inside the noise-reducing shell. A noise-reducing heat dissipation mechanism is provided inside the sound insulation cavity to absorb the noise entering the sound insulation cavity. A number of heat dissipation plates are fixedly connected inside the sound insulation cavity. A micro-touch switch is fixedly installed on the upper end of the heat dissipation plate. One end of the heat dissipation plate extends into the external environment. The upper end of the heat dissipation and noise reduction mechanism is connected to the pushing mechanism. The pushing mechanism is located in the connecting cavity, which is opened inside the noise reduction shell. The connecting cavity is connected to the sound insulation cavity. The pushing mechanism drives the heat dissipation and noise reduction mechanism to move, so that the heat dissipation and noise reduction mechanism comes into contact with several heat dissipation plates. One end of the noise reduction shell is fixedly connected to a water storage tank. Several heat dissipation plates pass through the water storage tank, which contains a water source. The upper end of the noise-reducing shell and the upper end of the water storage tank are both fixedly connected to the guide box. The guide box and the water storage tank are interconnected through a connecting hole. The connecting hole is opened in the water storage tank and the guide box. A buffer transmission mechanism is provided in the guide box. One end of the buffer transmission mechanism extends into the connecting cavity and is connected to the pushing mechanism. When heat is dissipated through the heat sink, the water source in the water storage tank is heated. The steam generated by the water source enters the guide box and drives the buffer transmission mechanism to move. One end of the noise-reducing shell is fixedly connected to a first arc-shaped plate. The first arc-shaped plate has several cavities. A liquid guiding connection mechanism is provided in the cavity. One end of the liquid guiding connection mechanism extends into the sound insulation cavity.

2. The noise reduction device for a compressor motor in a new energy vehicle according to claim 1, characterized in that: The noise reduction and heat dissipation mechanism includes several heat dissipation rods, which are slidably connected to the sound insulation cavity. A U-shaped connecting cavity is opened in the heat dissipation rod. Several heat dissipation rods are interconnected by several elastic noise reduction plates. The ends of the elastic noise reduction plates located on the left and right sides away from the heat dissipation rods are fixedly connected to the sound insulation cavity. A connecting rib is fixedly connected to the upper end of the elastic noise reduction plate, and the upper end of the connecting rib is fixedly connected to the sound insulation cavity.

3. The noise reduction device for a compressor motor in a new energy vehicle according to claim 2, characterized in that: The pushing mechanism includes a second arc-shaped plate, which slides in the connecting cavity. A connecting rod is movably connected to the upper end of the heat dissipation rod. Several connecting rods extend into the connecting cavity from one end away from the heat dissipation rod and are movably connected to the lower end of the second arc-shaped plate. Several supporting springs are fixedly connected to one side of the second arc-shaped plate, and the other end of the supporting springs is fixedly connected to the connecting cavity.

4. The noise reduction device for a compressor motor in a new energy vehicle according to claim 3, characterized in that: The buffer transmission mechanism includes a circular box, which is disposed inside a guide box. One end of the circular box extends into the connecting cavity and is fixedly connected to the second arc-shaped plate. A T-shaped connecting rod is slidably connected inside the other end of the circular box. A piston plate is fixedly connected to the end of the T-shaped connecting rod away from the circular box. The piston plate is slidably connected inside the guide box. A connecting spring is fixedly connected inside the circular box. The other end of the connecting spring is fixedly connected to the T-shaped connecting rod.

5. The noise reduction device for a compressor motor in a new energy vehicle according to claim 1, characterized in that: The liquid guiding connection mechanism includes a slide plate that slides into the cavity. Two connecting pipes are fixedly connected to one side of the slide plate. The end of the connecting pipe away from the slide plate is arc-shaped and extends into the sound insulation cavity. Two flexible hoses are fixedly connected to the side of the slide plate away from the connecting pipes. The flexible hoses are connected to the connecting pipes. The end of the flexible hose away from the slide plate passes through the first arc-shaped plate and extends into the external environment. A return spring is fixedly connected to one side of the slide plate. The other end of the return spring is fixedly connected to the cavity.

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