A secondary vibration isolation support seat for new energy vehicle air conditioning compressor

Abstract

The present invention relates to the technical field of compressor support seats, and discloses a secondary vibration isolation support seat for an air-conditioning compressor of a new energy vehicle, comprising a base, wherein a short vertical plate and a long vertical plate are welded on the left and right sides of the base respectively, and vibration isolation suspensions are provided through the upper part of the short vertical plate, the upper part of the long vertical plate and the surface of the base, and the vibration isolation suspension located on the base is a secondary suspension, and the rest of the vibration isolation suspensions are primary suspensions; the output end of the secondary suspension is provided on the vehicle body; an oil injection assembly is provided and connected on the outer shell of the primary suspension, and a pressure assembly is provided on the outer shell of the secondary suspension. Through the short vertical plate and the long vertical plate arranged horizontally by the primary suspension, the secondary suspension is arranged vertically on the base, which can play a vibration reduction role when the air-conditioning compressor vibrates horizontally and longitudinally; through the cooperation of the primary suspension and the secondary suspension, the vibration amplitude when the excitation frequency of the rotation of the air-conditioning compressor resonates with the frequency of the vibration isolation system is reduced by using the secondary vibration isolation method.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor support seats, and in particular to a secondary vibration isolation support seat for an air-conditioning compressor of a new energy vehicle. Background Art

[0002] The air-conditioning compressor support seat of new energy vehicles is a key structural component in the air-conditioning system. It is responsible for supporting and fixing the air-conditioning compressor to ensure its stable operation. In addition, by setting rubber suspension on the support seat, the vibration of the air-conditioning compressor can be absorbed and slowed down to a certain extent, and the noise generated by the vibration of the air-conditioning compressor can be reduced to ensure driving comfort.

[0003] A Chinese patent with an application date of 2023-06-26 and a publication number of CN116923049A discloses a two-stage vibration isolation compressor suspension bracket, comprising a lower sheet metal bracket, a secondary suspension assembly is arranged at the bottom of the lower sheet metal bracket, a crossbeam support plate is connected to the bottom of the secondary suspension assembly, a primary suspension assembly is arranged at the top of the lower sheet metal bracket, and the primary suspension assembly is connected to an upper sheet metal bracket assembly; the primary suspension assembly comprises a primary suspension upper aluminum plate and a primary suspension lower aluminum plate, a primary suspension rubber body is arranged therebetween, vulcanized bolts one are symmetrically installed at both ends of the primary suspension upper aluminum plate and the primary suspension lower aluminum plate, and a limiting bolt is installed in the middle; the secondary suspension assembly comprises a secondary suspension upper aluminum plate and a secondary suspension lower aluminum plate, a secondary suspension rubber body is arranged therebetween, and vulcanized bolts two are installed in the middle of the secondary suspension upper aluminum plate and the secondary suspension lower aluminum plate; the above structure can effectively attenuate the vibration generated by the compressor excitation source, and can improve NVH comfort.

[0004] In this technical solution, the first suspension rubber body and the second suspension rubber body are both arranged along the vertical direction. However, when the air-conditioning compressor is working, lateral vibration will also be generated. The suspension rubber body arranged in the vertical direction has a poor vibration reduction effect on the lateral vibration. In addition, when the air-conditioning compressor vibrates at a high frequency, resonance will be generated when the compressor rotation excitation frequency overlaps with the natural frequency of the suspension rubber body, causing the suspension rubber body to harden at high frequency, affecting the vibration reduction effect, and further improvements can be made. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a two-stage vibration isolation support seat for a new energy vehicle air-conditioning compressor, which has the advantages of reducing the lateral vibration and longitudinal vibration of the air-conditioning compressor, and reducing the vibration amplitude when the excitation frequency of the compressor rotation resonates with the frequency of the vibration isolation system. It solves the problem that the vertical arrangement of the suspension rubber bodies makes it difficult to reduce the lateral vibration of the air-conditioning compressor, and the high-frequency hardening of the suspension rubber bodies affects the vibration reduction effect.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of reducing the lateral vibration and longitudinal vibration of the air-conditioning compressor and reducing the vibration amplitude when the excitation frequency of the compressor rotation resonates with the frequency of the vibration isolation system, the present invention provides the following technical solutions: a two-stage vibration isolation support seat for a new energy vehicle air-conditioning compressor, comprising a base, a short vertical plate and a long vertical plate are welded on the left and right sides of the base respectively, and vibration isolation suspensions are arranged through the upper part of the short vertical plate, the upper part of the long vertical plate and the surface of the base. The vibration isolation suspension located on the base is a secondary suspension, and the remaining vibration isolation suspensions are primary suspensions; the two groups of primary suspension output ends located on the short vertical plates are provided with bracket assemblies, and the two groups of primary suspension output ends located on the long vertical plates are provided with mounting plates, the bracket assemblies and the mounting plates are used to be fixed on the air-conditioning compressor, and the secondary suspension output end is arranged on the vehicle body; an oil injection assembly is arranged and connected on the outer shell of the primary suspension, and a pressure assembly is arranged on the outer shell of the secondary suspension.

[0009] Preferably, the vibration isolation suspension includes a protective shell, which has an opening at one end, and a rubber main spring is arranged on the inner wall of the protective shell near the open end, and a metal frame is embedded in the middle of the rubber main spring; a piston rod is slidably connected through the center of the metal frame, and two groups of pressure plates are fixedly installed on the surface of the piston rod, and the two groups of pressure plates are respectively located on the upper and lower sides of the rubber main spring and the metal frame assembly; a piston cylinder assembly is arranged inside the protective shell, and a cylinder cover assembly is sleeved on the top of the piston cylinder assembly, and the cylinder cover assembly divides the protective shell into two parts, an upper cavity, and the top of the cylinder cover assembly, the bottom of the rubber main spring and the inner wall of the protective shell together form an upper cavity, and the bottom of the cylinder cover assembly, the inner wall of the protective shell and its bottom wall together form a lower cavity, and the upper cavity and the lower cavity are both filled with hydraulic oil; the piston rod is slidably connected through the center of the cylinder cover assembly, an elastic connecting piece is arranged between the top of the cylinder cover assembly and the pressure plate located on the lower side, and a piston plate assembly is arranged at the bottom end of the piston rod, and the piston plate assembly is slidably connected in the piston cylinder assembly.

[0010] Preferably, the piston cylinder assembly includes a sleeve located inside the protective shell, the bottom array of the sleeve is provided with a boss, the outer side of the lower half of the sleeve and boss assembly is provided with a separation cylinder, and the boss is fixedly mounted on the bottom wall of the separation cylinder; a support ring is fixedly mounted between the bottom of the outer wall of the separation cylinder and the inner wall of the protective shell, and the surface array of the support ring is provided with an oil groove running through it.

[0011] Preferably, a plurality of flow-blocking rings are fixedly mounted on the lower half of the outer wall of the sleeve and the inner wall of the separation cylinder, and the flow-blocking rings distributed inside and outside are staggered with each other in the vertical direction.

[0012] Preferably, the tube cover assembly includes a tube cover body which is sleeved on the outside of the top of the sleeve, and the tube cover body is used to seal the top opening of the sleeve; a sealing ring is fixedly installed on the outer wall of the bottom of the tube cover body, and a through hole array is opened through the surface of the sealing ring, a plug post is inserted at the center of the through hole, an upper sliding ring is fixedly installed on the top of the plug post, and a lower sliding ring is fixedly installed on the bottom of the plug post; the upper sliding ring is fitted on the outer wall of the tube cover body and the inner wall of the protective shell, and the lower sliding ring is fitted on the outer wall of the sleeve and the inner wall of the protective shell; the aperture of the through hole is larger than the diameter of the plug post.

[0013] Preferably, the elastic connecting member includes an insert tube, a covering tube and a spring. The covering tube is sleeved on the outside of the bottom end of the insert tube, the spring is fixedly installed between the top wall of the insert tube and the bottom wall of the covering tube, the insert tube is fixedly installed on the bottom of the pressure plate located on the lower side, the covering tube is fixedly installed on the top of the tube cover body, and the piston rod is slidably connected through the center of the covering tube.

[0014] Preferably, the piston plate assembly includes a fixed plate 1 fixedly mounted on the bottom end of the piston rod, a vortex bar 1 and a vortex bar 2 are fixedly mounted on the bottom of the fixed plate 1, a partition is fixedly mounted between the inner ends of the vortex bar 1 and the vortex bar 2, a fixed plate 2 is fixedly mounted on the bottom of the assembly of the vortex bar 1, the vortex bar 2 and the partition, and a guide hole is opened through the center of the fixed plate 2; two groups of vortex channels are separated by the vortex bar 1 and the vortex bar 2 between the fixed plate 1 and the fixed plate 2, the partition divides the guide hole equally into two parts, and the two parts of the guide hole are respectively connected to the two groups of vortex channels; the diameter of the fixed plate 2 is larger than the diameter of the fixed plate 1, and the fixed plate 2 is slidably connected to the inner wall of the sleeve.

[0015] Preferably, the bracket assembly includes a slide rail fixedly mounted on the top of the base, a slide seat is slidably connected to the surface of the slide rail, the slide seat is fixedly mounted to the end of the piston rod of the left-side primary suspension, and the mounting plate is fixedly mounted to the end of the piston rod of the right-side primary suspension; the interior of the base is hollow, and a slide groove connected to the interior of the base is opened at the center of the top of the base, and the slide groove and the slide rail are parallel to each other; a slide column is fixedly mounted on the bottom of the slide seat, the slide column is slidably connected in the slide groove, a cross plate is fixedly mounted on the bottom of the slide column, and the cross plate is located inside the base.

[0016] Preferably, the oil filling assembly includes two groups of square oil boxes fixedly installed inside the base, a sliding plate is slidably connected inside the square oil box, a connecting rod is fixedly installed between the sliding plate and the cross plate, and the connecting rod passes through and is slidably connected to the side of the square oil box; the square oil box is filled with hydraulic oil, and the hydraulic oil is on the side of the sliding plate away from the cross plate, a connecting pipe is fixed and connected to the surface of the square oil box, the other end of the connecting pipe is arranged on the unopened end of the first-level suspended protective shell, and the connecting pipe is connected to the protective shell.

[0017] Preferably, the pressure-applying assembly includes an actuator arranged at the unopened end of the protective shell in the secondary suspension, the output end of the actuator extends into the interior of the protective shell, a sliding disk is fixedly mounted on the output end of the actuator, the sliding disk slides on the inner wall of the protective shell, and the sliding disk is located between the bottom of the partition cylinder and the bottom wall of the protective shell.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a secondary vibration isolation support seat for a new energy vehicle air-conditioning compressor, which has the following beneficial effects:

[0020] 1. The secondary vibration isolation support seat of the new energy vehicle air-conditioning compressor has a short vertical plate and a long vertical plate arranged horizontally on the primary suspension, and a secondary suspension arranged vertically on the base. When the air-conditioning compressor vibrates horizontally or vertically, it can play a vibration reduction role;

[0021] 2. The secondary vibration isolation support seat of the air-conditioning compressor of the new energy vehicle, during the vibration of the air-conditioning compressor, the piston rod slides relative to the protective shell, the piston plate assembly slides inside the sleeve, and the hydraulic oil passes through the two sets of vortex channels inside the piston plate assembly. The friction between the hydraulic oil and the vortex channels restrains the piston plate assembly from sliding in the sleeve, thereby restraining the piston rod from sliding relative to the protective shell. Then, the hydraulic pressure inside the lower cavity inside the protective shell is adjusted by the oil injection assembly or the pressure assembly, and the cylinder cover assembly is driven to move by the hydraulic pressure of the hydraulic oil, and a force opposite to the movement direction of the piston rod is applied to the piston rod through the cylinder cover assembly to resist the piston rod from sliding into the protective shell, thereby achieving the purpose of reducing the amplitude of the air-conditioning compressor; through the cooperation of the primary suspension and the secondary suspension, the secondary vibration isolation method is used to reduce the vibration amplitude when the excitation frequency of the rotation of the air-conditioning compressor resonates with the frequency of the vibration isolation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a secondary vibration isolation support seat for an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of a three-dimensional structure of a vibration isolation suspension of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the main cross-sectional structure of a vibration isolation suspension of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of a three-dimensional cutaway structure of a vibration isolation suspension of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0026] Figure 5This is a schematic diagram of the three-dimensional structure of a vibration isolation suspension of a secondary vibration isolation support seat of a new energy vehicle air-conditioning compressor proposed by the present invention after removing the protective shell;

[0027] Figure 6 This is a three-dimensional structural schematic diagram of a piston cylinder assembly of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0028] Figure 7 This is a three-dimensional cross-sectional structural diagram of a cylinder cover assembly of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the piston rod of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0030] Fig. 9 This is a schematic diagram of the bottom-up structure of a piston plate assembly of a secondary vibration isolation support seat of a new energy vehicle air-conditioning compressor proposed by the present invention, after removing the second fixed plate;

[0031] Fig.10 This is a three-dimensional structural schematic diagram of a support assembly of a secondary vibration isolation support seat for an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0032] Fig.11 This is a schematic diagram of the three-dimensional assembly structure of a bracket assembly and an oil injection assembly of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention;

[0033] Fig.12 This is a schematic diagram of the three-dimensional structure of an oil injection assembly of a secondary vibration isolation support seat of an air-conditioning compressor of a new energy vehicle proposed by the present invention.

[0034] In the figure: 100, base; 200, short vertical plate; 300, long vertical plate; 400, vibration isolation suspension; 500, bracket assembly; 600, mounting plate; 700, oil injection assembly; 800, pressure assembly;

[0035] 410, protective shell; 420, rubber main spring; 430, metal frame; 440, piston rod; 450, piston cylinder assembly; 460, cylinder cover assembly; 470, elastic connector; 480, piston plate assembly;

[0036] 441, press plate;

[0037] 451, sleeve; 452, boss; 453, separator cylinder; 454, support ring; 455, oil groove; 456, flow blocking ring;

[0038] 461, cylinder cover body; 462, sealing ring; 463, through hole; 464, plug post; 465, upper sliding ring; 466, lower sliding ring;

[0039] 471, insert tube; 472, covering tube; 473, spring;

[0040] 481, fixed plate 1; 482, vortex strip 1; 483, vortex strip 2; 484, partition; 485, fixed plate 2; 486, guide hole;

[0041] 501, slide rail; 502, slide seat; 503, slide groove; 504, slide column; 505, cross plate;

[0042] 701, square oil box; 702, sliding sheet; 703, connecting rod; 704, connecting pipe;

[0043] 801. Actuator; 802. Sliding disk. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1 A secondary vibration isolation support seat for an air-conditioning compressor of a new energy vehicle comprises a base 100, and a short vertical plate 200 and a long vertical plate 300 are welded on the left and right sides of the base 100, respectively. The height of the short vertical plate 200 is less than that of the long vertical plate 300. The upper part of the short vertical plate 200, the upper part of the long vertical plate 300 and the surface of the base 100 are all penetrated with a vibration isolation suspension 400. The vibration isolation suspension 400 located on the base 100 is a secondary suspension, and the remaining vibration isolation suspensions 400 are primary suspensions; the two groups of primary suspension output ends located on the short vertical plate 200 are provided with a bracket assembly 500, and the two groups of primary suspension output ends located on the long vertical plate 300 are provided with a mounting plate 600. The bracket assembly 500 and the mounting plate 600 are used to be fixed on the air-conditioning compressor, and the secondary suspension output end is set on the vehicle body. An oil injection assembly 700 is provided and connected on the outer shell of the primary suspension, and the oil injection assembly 700 is used to transport hydraulic oil or suck hydraulic oil into the primary suspension. A pressure-applying assembly 800 is disposed on the outer shell of the secondary suspension, and the pressure-applying assembly 800 is used to increase or decrease the hydraulic pressure inside the secondary suspension.

[0046] See also Figure 2-Figure 4The vibration isolation suspension 400 includes a protective shell 410, which serves as the outer shell of the primary suspension and the secondary suspension. The protective shell 410 has an opening at one end, and the oil injection assembly 700 and the pressure assembly 800 are respectively connected to the unopened ends of the primary suspension and the secondary suspension. A rubber main spring 420 is arranged on the inner wall of the protective shell 410 near its open end, and a metal frame 430 is embedded in the middle of the rubber main spring 420, and the metal frame 430 and the rubber main spring 420 are fixed by vulcanization. A piston rod 440 is slidably connected through the center of the metal frame 430, and the piston rod 440 serves as the output end of the primary suspension and the secondary suspension.

[0047] Two groups of pressure plates 441 are fixedly mounted on the surface of the piston rod 440, and the two groups of pressure plates 441 are respectively located on the upper and lower sides of the assembly of the rubber main spring 420 and the metal frame 430. Therefore, when the piston rod 440 moves downward, the upper pressure plate 441 fits on the top of the metal frame 430 and pushes the metal frame 430 downward, causing the rubber main spring 420 to deform. When the piston rod 440 vibrates at a high frequency and a low amplitude, since the two groups of pressure plates 441 are respectively located on the upper and lower sides of the rubber main spring 420, and the distance between the two groups of pressure plates 441 is greater than the thickness of the rubber main spring 420, the contact time between the pressure plates 441 and the rubber main spring 420 is short, and even the pressure plates 441 and the rubber main spring 420 do not contact each other.

[0048] A piston cylinder assembly 450 is arranged inside the protective shell 410, and a cylinder cover assembly 460 is sleeved on the top of the piston cylinder assembly 450. The cylinder cover assembly 460 separates the protective shell 410 into two parts, the top of the cylinder cover assembly 460, the bottom of the rubber main spring 420 and the inner wall of the protective shell 410 together form an upper cavity, and the bottom of the cylinder cover assembly 460, the inner wall of the protective shell 410 and its bottom wall together form a lower cavity, and both the upper cavity and the lower cavity are filled with hydraulic oil.

[0049] The piston rod 440 is slidably connected to the center of the cylinder cover assembly 460. An elastic connector 470 is provided between the top of the cylinder cover assembly 460 and the pressure plate 441 located at the lower side. The elasticity of the elastic connector 470 makes the lower pressure plate 441 and the cylinder cover assembly 460 tend to move away from each other. When the piston rod 440 moves downward, the pressure plate 441 presses the elastic connector 470 downward, and the cylinder cover assembly 460 is blocked by the piston cylinder assembly 450, so that the elastic connector 470 is squeezed and contracted, and the piston rod 440 is restrained from continuing to move downward by the gradually increasing elastic force of the elastic connector 470. The bottom end of the piston rod 440 is provided with a piston plate assembly 480, and the piston plate assembly 480 is slidably connected in the piston cylinder assembly 450. When the piston rod 440 moves downward, the piston plate assembly 480 slides downward in the piston cylinder assembly 450, squeezing the hydraulic oil inside the piston cylinder assembly 450, and suppressing the piston plate assembly 480 from moving downward through the hydraulic pressure of the hydraulic oil, thereby suppressing the piston rod 440 from moving downward.

[0050] See also Figure 4-Figure 6 The piston cylinder assembly 450 includes a sleeve 451 located inside the protective shell 410, and a boss 452 is arranged in an array at the bottom of the sleeve 451. A separation cylinder 453 is sleeved on the outer side of the lower half of the sleeve 451 and the boss 452 assembly, that is, the depth of the separation cylinder 453 is equal to half the depth of the sleeve 451. The boss 452 is fixedly mounted on the bottom wall of the separation cylinder 453. The bottom of the sleeve 451 is separated from the bottom wall of the separation cylinder 453 by the boss 452, and a plurality of arc-shaped through grooves are formed between the bottom of the sleeve 451 and the bottom wall of the separation cylinder 453, so that the hydraulic oil can flow through the through grooves.

[0051] A support ring 454 is fixedly installed between the bottom of the outer wall of the separation cylinder 453 and the inner wall of the protective shell 410, and the separation cylinder 453 is supported by the support ring 454. An array of oil grooves 455 are provided on the surface of the support ring 454, so that the hydraulic oil can flow through the oil grooves 455. The separation cylinder 453 is used to separate the outer wall of the sleeve 451 and the inner wall of the protective shell 410 to form two concentric annular grooves. The cylinder cover assembly 460 is located above the two annular grooves, so that the two annular grooves are connected from the top. A plurality of flow-blocking rings 456 are fixedly installed on the lower half of the outer wall of the sleeve 451 and the inner wall of the separation cylinder 453, and the flow-blocking rings 456 distributed inside and outside are offset from each other in the vertical direction.

[0052] Thus, when the hydraulic oil between the separation cylinder 453 and the bottom wall of the protective shell 410 flows upward through the oil groove 455, the hydraulic oil enters the outer annular groove; then, under the blocking of the cylinder cover assembly 460, the hydraulic oil enters the inner annular groove from the top. And through the blocking effect of multiple flow blocking rings 456 on the hydraulic oil, turbulence is formed, increasing the resistance to the flow of hydraulic oil. Similarly, when the piston rod 440 moves downward, driving the piston plate assembly 480 to move downward, and squeezing the hydraulic oil in the lower half of the sleeve 451, the hydraulic oil passes through the arc groove between the bosses 452 and enters the inner annular groove. The hydraulic oil is blocked by the flow blocking ring 456, forming turbulence, increasing the flow resistance of the hydraulic oil. Afterwards, under the blocking effect of the cylinder cover assembly 460, it enters the outer annular groove from the top; finally, the hydraulic oil passes through the oil groove 455 and enters between the bottom of the separation cylinder 453 and the bottom wall of the protective shell 410.

[0053] See also Figure 3-Figure 4 and Figure 7 The barrel cover assembly 460 includes a barrel cover body 461 sleeved on the outer side of the top of the sleeve 451, and the barrel cover body 461 is used to seal the top opening of the sleeve 451. The outer edge of the top of the sleeve 451 is provided with an annular flange 1, and the inner edge of the bottom of the barrel cover body 461 is provided with an annular flange 2, and the annular flange 1 blocks the annular flange 2 to prevent the barrel cover body 461 from being separated from the sleeve 451.

[0054] A sealing ring 462 is fixedly installed on the outer wall of the bottom of the barrel cover body 461, and the sealing ring 462 fits on the inner wall of the protective shell 410. A through hole 463 is arranged in an array on the surface of the sealing ring 462, and a plug post 464 is inserted at the center of the through hole 463. The diameter of the through hole 463 is larger than the diameter of the plug post 464. The hydraulic oil can flow through the gap between the through hole 463 and the plug post 464. An upper sliding ring 465 is fixedly installed on the top of the plug post 464, and the upper sliding ring 465 fits on the outer wall of the barrel cover body 461 and the inner wall of the protective shell 410. A lower sliding ring 466 is fixedly installed on the bottom end of the plug post 464, and the lower sliding ring 466 fits on the outer wall of the sleeve 451 and the inner wall of the protective shell 410.

[0055] When the hydraulic pressure in the lower cavity inside the protective shell 410 is increased by the pressure-applying assembly 800; or when hydraulic oil is injected into the protective shell 410 by the oil injection assembly 700 to increase the hydraulic pressure inside the lower cavity; the assembly of the lower sliding ring 466, the plug 464 and the upper sliding ring 465 moves upward, reducing the space in the upper cavity, increasing the hydraulic pressure in the upper cavity, inhibiting the deformation of the rubber main spring 420, and thereby resisting the downward movement of the piston rod 440.

[0056] When the hydraulic pressure in the lower cavity inside the protective shell 410 is reduced by the pressure-applying assembly 800, or when the hydraulic oil is pumped from the protective shell 410 by the oil injection assembly 700 to reduce the hydraulic pressure inside the lower cavity, the assembly of the lower sliding ring 466, the plug 464 and the upper sliding ring 465 moves downward.

[0057] When the assembly of the lower sliding ring 466, the plug 464 and the upper sliding ring 465 moves upward, the hydraulic oil between the lower sliding ring 466 and the upper sliding ring 465 is pushed upward synchronously, and the hydraulic oil flows upward through the gap between the through hole 463 and the plug 464, and exerts an upward thrust on the cylinder cover body 461 through the friction between the hydraulic oil and the hole wall of the through hole 463. When the lower sliding ring 466 fits the bottom of the sealing ring 462, it directly exerts an upward thrust on the sealing ring 462. In this process, the piston rod 440 moves downward, the pressure plate 441 presses the elastic connector 470 downward, and exerts a downward thrust on the cylinder cover body 461 through the elastic connector 470.

[0058] Similarly, when the assembly of the lower sliding ring 466 , the plug 464 and the upper sliding ring 465 moves downward, a downward thrust is applied to the cylinder cover body 461 . During this process, the piston rod 440 moves upward, applying an upward pulling force to the cylinder cover body 461 through the elastic connecting member 470 .

[0059] Thus, the pressure inside the lower cavity is adjusted by the pressure-applying assembly 800 or the oil-injecting assembly 700 , so that the cylinder cover assembly 460 applies a thrust or a pull to the piston rod 440 to inhibit the movement of the piston rod 440 .

[0060] The cross section of the lower slide ring 466 is inverted V-shaped, and the top edge of the separation cylinder 453 is located directly below the middle of the lower slide ring 466. Thus, the hydraulic oil is guided by the lower slide ring 466 to flow between the two annular grooves between the outer wall of the sleeve 451 and the inner wall of the protective shell 410.

[0061] See also Figure 4 The elastic connecting member 470 includes an inserting tube 471, a covering tube 472 and a spring 473. The covering tube 472 is sleeved on the outer side of the bottom end of the inserting tube 471. The spring 473 is fixedly installed between the top wall of the inserting tube 471 and the bottom wall of the covering tube 472. The inserting tube 471 is fixedly installed at the bottom of the pressing plate 441 located at the lower side. The covering tube 472 is fixedly installed on the top of the cylinder cover body 461. The piston rod 440 penetrates and is slidably connected at the center of the covering tube 472. The spring 473 is covered from the outside by the cooperation of the inserting tube 471 and the covering tube 472 to prevent the spring 473 from contacting the hydraulic oil.

[0062] See also Figure 8-Figure 9 The piston plate assembly 480 includes a fixed plate 481 fixedly mounted on the bottom end of the piston rod 440, a vortex bar 482 and a vortex bar 483 are fixedly mounted on the bottom of the fixed plate 481, a partition 484 is fixedly mounted between the inner ends of the vortex bar 482 and the vortex bar 483, a fixed plate 485 is fixedly mounted on the bottom of the assembly of the vortex bar 482, the vortex bar 483 and the partition 484, and a guide hole 486 is opened through the center of the fixed plate 485; two groups of vortex channels are separated between the fixed plate 481 and the fixed plate 485 by the vortex bar 482 and the vortex bar 483, the partition 484 evenly divides the guide hole 486 into two parts, and the two parts of the guide hole 486 are respectively connected to the two groups of vortex channels; the diameter of the fixed plate 485 is larger than the diameter of the fixed plate 481, and the fixed plate 485 is slidably connected to the inner wall of the sleeve 451. Therefore, when the piston rod 440 moves downward, the second fixing plate 485 moves downward along the inner wall of the sleeve 451, and at the same time, through the setting of the elastic connecting member 470, the sleeve cover body 461 is driven to move downward, so that the hydraulic pressure of the hydraulic oil inside the sleeve 451 is increased; and in this process, the hydraulic oil flows through the two sets of vortex channels. The setting of the vortex channels prolongs the flow length of the hydraulic oil; and the friction between the hydraulic oil and the vortex channels inhibits the piston plate assembly 480 from moving downward.

[0063] See also Figure 10-12 The bracket assembly 500 includes a slide rail 501 fixedly mounted on the top of the base 100, and a slide seat 502 is slidably connected to the surface of the slide rail 501, and the cross section of the slide seat 502 is L-shaped. The horizontal part of the slide seat 502 is used to carry the air-conditioning compressor. The slide seat 502 is fixedly mounted to the end of the piston rod 440 of the left primary suspension, and the mounting plate 600 is fixedly mounted to the end of the piston rod 440 of the right primary suspension. The mounting plate 600 is fixedly mounted on the right side of the top of the air-conditioning compressor.

[0064] The interior of the base 100 is hollow, and the oil injection assembly 700 is arranged inside the base 100. A slide groove 503 communicating with the interior of the base 100 is provided at the center of the top, and the slide groove 503 is parallel to the slide rail 501. A slide column 504 is fixedly installed at the bottom of the slide seat 502, and the slide column 504 is slidably connected in the slide groove 503. A cross plate 505 is fixedly installed at the bottom of the slide column 504, and the cross plate 505 is located inside the base 100. When the air-conditioning compressor vibrates laterally, the slide seat 502 slides left and right along the slide rail 501, and the slide column 504 slides left and right in the slide groove 503, and the cross plate 505 moves synchronously with the slide column 504.

[0065] See also Figure 11-Figure 12 The oil filling assembly 700 includes two groups of square oil boxes 701 fixedly installed inside the base 100, and a sliding sheet 702 is slidably connected inside the square oil box 701. A connecting rod 703 is fixedly installed between the sliding sheet 702 and the horizontal plate 505, and the connecting rod 703 penetrates and slides and is connected to the side of the square oil box 701. The square oil box 701 is filled with hydraulic oil, and the hydraulic oil is on the side of the sliding sheet 702 away from the horizontal plate 505. A connecting pipe 704 is fixed and connected to the surface of the square oil box 701, and the other end of the connecting pipe 704 is set on the unopened end of the primary suspended protective shell 410, and the connecting pipe 704 is connected to the protective shell 410. When the horizontal plate 505 moves left and right following the sliding column 504, the connecting action of the connecting rod 703 drives the sliding sheet 702 to slide inside the square oil box 701. Through the connecting action of the connecting pipe 704, the hydraulic oil inside the protective shell 410 and the square oil box 701 can flow. Since the square oil box 701 is designed in a flat shape, the contact area with the air can be increased, the heat dissipation effect of the hydraulic oil can be ensured, and the temperature of the hydraulic oil can be prevented from being too high during the vibration reduction process. Thus, by dissipating the heat of the hydraulic oil and ensuring the flow effect of the hydraulic oil, a stable damping effect is provided for the vibration of the air conditioner compressor.

[0066] See also Figure 3-Figure 5The pressure-applying assembly 800 includes an actuator 801 disposed at the unopened end of the protective shell 410 in the secondary suspension. The output end of the actuator 801 extends into the interior of the protective shell 410. A sliding disk 802 is fixedly mounted on the output end of the actuator 801. The sliding disk 802 slides against the inner wall of the protective shell 410, and the sliding disk 802 is located between the bottom of the separation cylinder 453 and the bottom wall of the protective shell 410. The sliding disk 802 is driven to move upward by the output end of the actuator 801, thereby increasing the hydraulic pressure between the bottom of the separation cylinder 453 and the bottom wall of the protective shell 410, and driving the hydraulic oil to flow upward through the oil groove 455. Similarly, when the output end of the actuator 801 pulls the sliding disk 802 downward, the hydraulic oil flows downward through the oil groove 455. In addition, the actuator 801 can also be replaced by a micro cylinder. An acceleration sensor may be provided on the base 100 to monitor the vibration of the base 100 in the vertical direction. The acceleration sensor is electrically connected to the processor inside the vehicle, and the processor controls the extension and retraction of the output end of the actuator 801. For example, when the base 100 vibrates downward, the processor controls the output end of the actuator 801 to extend, and the sliding plate 802 squeezes the hydraulic oil inside the protective shell 410, increases the hydraulic pressure, and suppresses the vibration of the base 100.

[0067] When in use, when the air-conditioning compressor vibrates laterally, the slide 502 and the mounting plate 600 vibrate laterally synchronously. For example, when the air-conditioning compressor moves to the right, the slide 502 and the mounting plate 600 move to the right synchronously.

[0068] The two piston rods 440 connected to the mounting plate 600 move to the right and are inserted into the protective shell 410; the slide seat 502 drives the slide column 504 to slide to the right along the slide groove 503, and the cross plate 505 moves to the right synchronously, and cooperates with the connecting action of the connecting rod 703 to make the sliding piece 702 move to the right along the square oil box 701, and the hydraulic pressure inside the square oil box 701 on the right side increases, and the hydraulic oil enters the inside of the two groups of protective shells 410 on the right side through the connecting pipe 704;

[0069] When the piston rod 440 moves into the protective shell 410, the pressure plate 441 pushes the metal skeleton 430 and drives the rubber main spring 420 to deform, and the rubber main spring 420 elastically resists the piston rod 440 from moving into the protective shell 410; at the same time, a group of pressure plates 441 on the lower side squeeze the spring 473, and the elasticity of the spring 473 suppresses the movement of the piston rod 440, and at the same time, the piston plate assembly 480 moves with the piston rod 440, and the piston plate assembly 480 squeezes the hydraulic oil inside the sleeve 451, and part of the hydraulic oil flows through the two groups of vortex channels between the vortex bar 1 482 and the vortex bar 2 483, and the friction between the hydraulic oil and the vortex channel suppresses the piston plate assembly 480 from moving inside the sleeve 451;

[0070] The hydraulic oil inside the square oil box 701 passes through the connecting pipe 704 and enters between the bottom wall of the protective shell 410 and the bottom of the separation cylinder 453, and flows upward through the oil groove 455, enters the outer annular groove, and is then guided downward by the lower sliding ring 466 to enter the inner annular groove, and then passes through the arc-shaped groove between the bosses 452 and enters the sleeve 451. After that, the hydraulic oil flows through the vortex channel of the piston plate assembly 480, thereby inhibiting the piston plate assembly 480 and the piston rod 440 from moving downward.

[0071] The hydraulic oil enters the lower cavity, increasing the hydraulic pressure inside the lower cavity, driving the assembly of the lower slide ring 466, the plug column 464 and the upper slide ring 465 to move upward, reducing the space in the upper cavity, increasing the hydraulic pressure in the upper cavity, and suppressing the deformation of the rubber main spring 420, thereby resisting the downward movement of the piston rod 440; at the same time, the assembly of the lower slide ring 466, the plug column 464 and the upper slide ring 465 applies an upward thrust to the cylinder cover body 461, resisting the downward thrust applied to the cylinder cover body 461 by the elastic connecting piece 470 when the piston rod 440 moves downward, thereby further suppressing the downward movement of the piston rod 440.

[0072] Similarly, when the air-conditioning compressor vibrates vertically, the base 100 also vibrates vertically, and the secondary suspended protective shell 410 moves downward relative to the piston rod 440. At the same time, the output end of the actuator 801 extends, driving the sliding plate 802 to slide in the protective shell 410, increasing the hydraulic pressure of the hydraulic oil between the bottom of the partition cylinder 453 and the bottom wall of the protective shell 410, so as to suppress the relative movement of the protective shell 410 and the piston rod 440.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A secondary vibration isolation support base for a new energy vehicle air-conditioning compressor, comprising a base (100), characterized in that: A short vertical plate (200) and a long vertical plate (300) are welded to the left and right sides of the base (100), respectively; the upper part of the short vertical plate (200), the upper part of the long vertical plate (300) and the surface of the base (100) are all penetrated by vibration isolation suspensions (400); the vibration isolation suspensions (400) located on the base (100) are secondary suspensions, and the remaining vibration isolation suspensions (400) are primary suspensions; The two groups of primary suspension output ends located on the short vertical plate (200) are provided with a bracket assembly (500), and the two groups of primary suspension output ends located on the long vertical plate (300) are provided with a mounting plate (600), the bracket assembly (500) and the mounting plate (600) being used to be fixed on the air-conditioning compressor, and the secondary suspension output ends are provided on the vehicle body; An oil injection assembly (700) is disposed on and connected to the outer shell of the primary suspension, and a pressure applying assembly (800) is disposed on the outer shell of the secondary suspension; The vibration isolation suspension (400) comprises a protective shell (410), one end of the protective shell (410) having an opening, a rubber main spring (420) being arranged on the inner wall of the protective shell (410) close to the opening, and a metal frame (430) being embedded in the middle of the rubber main spring (420); A piston rod (440) is slidably connected through the center of the metal frame (430), and two groups of pressure plates (441) are fixedly mounted on the surface of the piston rod (440). The two groups of pressure plates (441) are respectively located at the upper and lower sides of the assembly of the rubber main spring (420) and the metal frame (430); A piston cylinder assembly (450) is arranged inside the protective shell (410), a cylinder cover assembly (460) is sleeved on the top of the piston cylinder assembly (450), the cylinder cover assembly (460) separates the protective shell (410) into an upper and lower part, and the top of the cylinder cover assembly (460), the bottom of the rubber main spring (420) and the inner wall of the protective shell (410) together form an upper cavity, and the bottom of the cylinder cover assembly (460), the inner wall of the protective shell (410) and its bottom wall together form a lower cavity, and the upper cavity and the lower cavity are both filled with hydraulic oil; The piston rod (440) is slidably connected to the center of the cylinder cover assembly (460), an elastic connecting member (470) is provided between the top of the cylinder cover assembly (460) and the pressure plate (441) located at the bottom, and a piston plate assembly (480) is provided at the bottom end of the piston rod (440), and the piston plate assembly (480) is slidably connected to the piston cylinder assembly (450).

2. The secondary vibration isolation support seat for the air-conditioning compressor of a new energy vehicle according to claim 1 is characterized in that: The piston cylinder assembly (450) comprises a sleeve (451) located inside the protective shell (410), the bottom of the sleeve (451) is provided with bosses (452) in an array, a separator cylinder (453) is sleeved on the outer side of the lower half of the sleeve (451) and boss (452) assembly, and the boss (452) is fixedly mounted on the bottom wall of the separator cylinder (453); A support ring (454) is fixedly installed between the bottom of the outer wall of the separation cylinder (453) and the inner wall of the protective shell (410), and an array of oil grooves (455) are provided through the surface of the support ring (454).

3. The secondary vibration isolation support seat of the new energy vehicle air-conditioning compressor according to claim 2 is characterized in that: A plurality of flow-blocking rings (456) are fixedly mounted on the lower half of the outer wall of the sleeve (451) and the inner wall of the separation cylinder (453), and the flow-blocking rings (456) distributed inside and outside are mutually staggered in the vertical direction.

4. The secondary vibration isolation support seat for the new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: The cylinder cover assembly (460) comprises a cylinder cover body (461) sleeved on the outside of the top of the sleeve (451), and the cylinder cover body (461) is used to seal the top opening of the sleeve (451); A sealing ring (462) is fixedly mounted on the outer wall of the bottom of the cylinder cover body (461); a through hole (463) is formed in an array on the surface of the sealing ring (462); a plug post (464) is inserted at the center of the through hole (463); an upper sliding ring (465) is fixedly mounted on the top of the plug post (464); and a lower sliding ring (466) is fixedly mounted on the bottom of the plug post (464); The upper sliding ring (465) is fitted on the outer wall of the cylinder cover body (461) and the inner wall of the protective shell (410), and the lower sliding ring (466) is fitted on the outer wall of the sleeve (451) and the inner wall of the protective shell (410); The diameter of the through hole (463) is larger than the diameter of the plug post (464).

5. The secondary vibration isolation support seat for the new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: The elastic connecting member (470) comprises an insert tube (471), a covering tube (472) and a spring (473); the covering tube (472) is sleeved on the outer side of the bottom end of the insert tube (471); the spring (473) is fixedly mounted between the top wall of the insert tube (471) and the bottom wall of the covering tube (472); the insert tube (471) is fixedly mounted on the bottom of the pressure plate (441) located at the lower side; the covering tube (472) is fixedly mounted on the top of the tube cover body (461); and the piston rod (440) penetrates and is slidably connected to the center of the covering tube (472).

6. The secondary vibration isolation support seat for the new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: The piston plate assembly (480) comprises a fixed plate 1 (481) fixedly mounted on the bottom end of the piston rod (440); a vortex strip 1 (482) and a vortex strip 2 (483) are fixedly mounted on the bottom of the fixed plate 1 (481); a partition plate (484) is fixedly mounted between the inner ends of the vortex strip 1 (482) and the vortex strip 2 (483); a fixed plate 2 (485) is fixedly mounted on the bottom of the assembly of the vortex strip 1 (482), the vortex strip 2 (483) and the partition plate (484); a guide hole (486) is opened through the center of the fixed plate 2 (485); Two groups of vortex channels are separated by vortex strips 1 (482) and vortex strips 2 (483) between the fixed disk 1 (481) and the fixed disk 2 (485); the partition plate (484) divides the guide hole (486) into two equal parts, and the two parts of the guide hole (486) are respectively connected to the two groups of vortex channels; The diameter of the second fixing disk (485) is greater than the diameter of the first fixing disk (481), and the second fixing disk (485) is slidably connected to the inner wall of the sleeve (451).

7. The secondary vibration isolation support seat for the new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: The bracket assembly (500) comprises a slide rail (501) fixedly mounted on the top of the base (100); a slide seat (502) is slidably connected to the surface of the slide rail (501); the slide seat (502) is fixedly mounted to the end of the piston rod (440) of the left primary suspension; and the mounting plate (600) is fixedly mounted to the end of the piston rod (440) of the right primary suspension; The interior of the base (100) is hollow, and a slide groove (503) communicating with the interior of the base (100) is provided at the top center of the base (100), and the slide groove (503) and the slide rail (501) are parallel to each other; A sliding column (504) is fixedly mounted on the bottom of the sliding seat (502), and the sliding column (504) is slidably connected in the sliding groove (503). A transverse plate (505) is fixedly mounted on the bottom of the sliding column (504), and the transverse plate (505) is located inside the base (100).

8. The secondary vibration isolation support seat for the new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: The oil filling assembly (700) comprises two groups of square oil boxes (701) fixedly mounted inside the base (100), a sliding sheet (702) being slidably connected inside the square oil box (701), a connecting rod (703) being fixedly mounted between the sliding sheet (702) and the horizontal plate (505), and the connecting rod (703) penetrating and slidably connected to the side of the square oil box (701); The square oil box (701) is filled with hydraulic oil, and the hydraulic oil is located on the side of the sliding sheet (702) away from the horizontal plate (505). A connecting pipe (704) is fixed to and connected to the surface of the square oil box (701). The other end of the connecting pipe (704) is arranged on an unopened end of the primary suspended protective shell (410), and the connecting pipe (704) is connected to the protective shell (410).

9. The secondary vibration isolation support seat for the new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: The pressure-applying assembly (800) comprises an actuator (801) arranged at an unopened end of a protective shell (410) in a secondary suspension, the output end of the actuator (801) extending into the interior of the protective shell (410), a sliding disk (802) being fixedly mounted on the output end of the actuator (801), the sliding disk (802) being fitted onto an inner wall of the protective shell (410), and the sliding disk (802) being located between the bottom of the partition cylinder (453) and the bottom wall of the protective shell (410).

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