Vehicle-mounted compressor suspension assembly

Abstract

The utility model provides a vehicle-mounted compressor suspension assembly which comprises an L-shaped compressor support which comprises a first side plate connected with a compressor and a second side plate connected with a vehicle body cross beam, and the compressor is provided with a plurality of compressor mounting holes; the compressor mounting external members are arranged in the positioning holes of the first side plate in a sleeved mode, each compressor mounting external member is provided with a shock pad arranged in the circumferential direction and buffer blocks arranged at the two axial ends respectively, and the compressor mounting external members are in threaded connection with the compressor mounting holes through first bolts; and the vehicle body mounting external members are sleeved with the positioning holes of the second side plate, each vehicle body mounting external member is provided with a shock pad arranged in the circumferential direction and buffer blocks arranged at the two axial ends respectively, and the vehicle body mounting external members are in threaded connection with the vehicle body cross beam through second bolts. The shock pads are free of deformation and damage in the installation process, the rubber fatigue problem is weakened, vibration transmission is reduced, and the comfort of the whole automobile is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted refrigeration equipment, in particular to a vehicle-mounted compressor suspension assembly. Background Art

[0002] At present, the main method to solve the vibration and noise problems of compressors is to install rubber shock-absorbing suspension on the bracket. For example, the shock-absorbing suspension used in utility model patent CN220168103U can absorb the vibration and noise during the operation of the compressor, and the limit structure is added to increase the life of the rubber suspension. Bracket installation: See the attachment of the specification of CN220168103U case Figures 1 to 7 , the fixing bolt 400 passes through the compressor mounting hole, and then passes through the limit washer to connect with the internal thread of the inner connecting pipe. Torque will be generated during the tightening of the bolt, which drives the shock absorber to rotate through the inner connecting pipe. That is to say, the tightening torque minus the torque generated by the friction between the end face of the compressor mounting hole and the limit washer, and the remaining torque is all loaded on the shock absorber, which will cause damage to the shock absorber rubber. At the same time, the friction torque between the end face of the compressor mounting hole and the surface of the limit washer will cause the limit washer to rotate, which will cause the initial deformation of the shock absorber rubber, resulting in stiffness distortion and affecting NVH (noise, vibration and harshness, the abbreviation of Noise, Vibration, Harshness. This is a comprehensive issue to measure the quality of automobile manufacturing, and it gives the most direct and superficial experience to automobile users).

[0003] Therefore, the utility model provides a vehicle-mounted compressor suspension assembly. Utility Model Content

[0004] In response to the problems in the prior art, the vehicle-mounted compressor suspension assembly of the utility model overcomes the difficulties of the prior art, can prevent each shock-absorbing pad from deformation and damage during the installation process, ensure the relative position of the inner sleeve and the outer sleeve of the suspension, the stiffness of the suspension, reduce rubber fatigue problems, and improve the comfort of the entire vehicle.

[0005] An embodiment of the utility model provides a compressor suspension assembly, comprising:

[0006] An L-shaped compressor bracket, the L-shaped compressor bracket comprising a first side plate connected to the compressor and a second side plate connected to the vehicle body cross beam, the compressor having a plurality of compressor mounting holes;

[0007] A plurality of compressor installation kits, which are sleeved in the positioning holes of the first side plate, wherein the compressor installation kits have shock-absorbing pads arranged circumferentially and buffer blocks respectively arranged at both ends of the axial direction, and the compressor installation kits are screwed to the compressor installation holes by first bolts; and

[0008] A plurality of body mounting kits are sleeved in the positioning holes of the second side panels. The body mounting kits have circumferentially arranged shock-absorbing pads and buffer blocks respectively arranged at both ends of the axial direction. The body mounting kits are screwed to the body cross beam by second bolts.

[0009] Preferably, the compressor installation kit includes a compressor suspension assembly with a circumferential shock-absorbing pad, two compressor suspension limit rings and a U-shaped anti-rotation bracket, and the compressor suspension assembly includes an inner sleeve, a first shock-absorbing pad and a first outer sleeve which are sequentially surrounded from the inside to the outside, and a compressor suspension limit ring, an inner sleeve, another compressor suspension limit ring and a U-shaped anti-rotation bracket are riveted together in sequence.

[0010] Preferably, the inner sleeve, the first shock-absorbing pad and the first outer sleeve are vulcanized and bonded to form the compressor suspension assembly.

[0011] Preferably, the U-shaped anti-rotation bracket has a central through hole and anti-rotation side walls located on both sides of the central through hole, and the anti-rotation side walls are limitedly engaged with both sides of the compressor installation hole.

[0012] Preferably, the compressor suspension limit ring comprises a stacked first buffer block and a first gasket, and the first gasket abuts against two ends of the compressor suspension assembly respectively.

[0013] Preferably, the vehicle body mounting kit comprises a vehicle body suspension component having a circumferential shock absorbing pad and a vehicle body suspension limit ring, the vehicle body suspension component comprises an anti-rotation inner sleeve, a second shock absorbing pad and a second outer sleeve which are arranged in sequence from the inside to the outside, the end face of the first end of the vehicle body suspension component is provided with a vulcanized rubber layer, and the second end is riveted to the vehicle body suspension limit ring.

[0014] Preferably, the anti-rotation inner sleeve, the second shock-absorbing pad and the second outer sleeve are vulcanized and bonded to form a vehicle body suspension assembly, and the exposed end of the anti-rotation inner sleeve is provided with a flat square.

[0015] Preferably, the vehicle body suspension limiting ring comprises a stacked second buffer block and a second gasket, and the second gasket abuts against the second end of the vehicle body suspension assembly.

[0016] Preferably, the compressor is located on a side of the first side plate close to the second side plate.

[0017] The embodiment of the utility model further provides a method for installing a vehicle-mounted compressor, using the above-mentioned vehicle-mounted compressor suspension assembly, comprising the following steps:

[0018] S110, riveting the second end of the vehicle body suspension assembly to the vehicle body suspension limiting ring to form a vehicle body installation kit;

[0019] S120, matching the anti-rotation slot of the mounting fixture with the flat square clearance of the anti-rotation inner sleeve of the vehicle body suspension assembly to fix the mounting fixture and the vehicle body cross beam;

[0020] S130, after the vehicle body installation kit is screwed to the vehicle body cross beam by a second bolt, the installation fixture is removed;

[0021] S140, riveting a compressor suspension limit ring, another compressor suspension limit ring and a U-shaped anti-rotation bracket in sequence to form a compressor installation kit; and

[0022] S150, screwing the vehicle body suspension assembly to the vehicle body cross beam using a first bolt.

[0023] The vehicle-mounted compressor suspension assembly of the utility model can ensure that the shock-absorbing pad rubber will not be deformed or damaged during the installation process. The relative positions of the inner sleeve and the outer sleeve of the suspension are consistent with the design state, ensuring that the stiffness of the suspension is consistent with the design state, avoiding the inconsistency between the design stiffness and the actual stiffness, thereby affecting the comfort of the entire vehicle, and the resulting rubber fatigue problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0025] Figure 1 It is an assembly schematic diagram of the vehicle-mounted compressor suspension assembly of the utility model.

[0026] Figure 2 It is a three-dimensional diagram of the vehicle-mounted compressor of the utility model.

[0027] Figure 3 It is a stereoscopic diagram of the vehicle-mounted compressor suspension assembly of the utility model.

[0028] Figure 4 It is a stereoscopic diagram of an L-shaped compressor bracket in the vehicle-mounted compressor suspension assembly of the utility model.

[0029] Figure 5 It is an assembly drawing of a compressor suspension component in an on-vehicle compressor suspension assembly of the utility model in an installed state.

[0030] Figure 6 It is a stereoscopic diagram of a U-shaped anti-rotation bracket in a vehicle-mounted compressor suspension assembly of the utility model.

[0031] Figure 7 It is a stereoscopic diagram of a compressor suspension limiting ring in the vehicle-mounted compressor suspension assembly of the utility model.

[0032] Figure 8It is a stereoscopic diagram of a compressor suspension component in the vehicle-mounted compressor suspension assembly of the utility model.

[0033] Fig. 9 It is an assembly drawing of the vehicle body suspension component in the vehicle-mounted compressor suspension assembly of the utility model under the installation state.

[0034] Fig.10 It is a stereoscopic diagram of a vehicle body suspension limiting ring in the vehicle-mounted compressor suspension assembly of the utility model.

[0035] Fig.11 It is a stereoscopic diagram of a vehicle body suspension component in the vehicle-mounted compressor suspension assembly of the utility model.

[0036] Fig.12 It is a stereoscopic diagram of a mounting fixture in a vehicle-mounted compressor suspension assembly of the utility model.

[0037] Reference numerals

[0038] 1 Body cross member

[0039] 2 Compressor

[0040] 21 Compressor mounting hole

[0041] 3 Install the fixture

[0042] 31 Anti-rotation slot

[0043] 4 Vehicle compressor suspension assembly

[0044] 41 L-type compressor bracket

[0045] 411 First side panel

[0046] 412 Second side panel

[0047] 42 Compressor Mounting Components

[0048] 421 Inner sleeve

[0049] 422 First Shock Absorber

[0050] 423 First Coat

[0051] 43 Compressor suspension limit ring

[0052] 431 First buffer block

[0053] 432 First Gasket

[0054] 44 U-shaped anti-rotation bracket

[0055] 441 Central through hole

[0056] 442 Anti-rotation sidewall

[0057] 45 Body suspension components

[0058] 451 Anti-rotation inner sleeve

[0059] 452 Second shock pad

[0060] 453 Second Coat

[0061] 454 Vulcanized rubber layer

[0062] 46 Body suspension limit ring

[0063] 461 Second buffer block

[0064] 462 Second gasket

[0065] 5 First Bolt

[0066] 6 Second bolt DETAILED DESCRIPTION

[0067] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present application. The present application can also be implemented or applied through other different specific implementation methods, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0068] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0069] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0071] In order to clearly describe the present application, components irrelevant to the description are omitted, and the same reference symbols are given to the same or similar components throughout the specification.

[0072] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0073] When a device is said to be "on" another device, it may be directly on the other device, but there may also be other devices between it. In contrast, when a device is said to be "directly" on another device, there are no other devices between it.

[0074] Although the terms first, second, etc. are used to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate the existence of features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0075] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present application. The singular form used herein also includes the plural form unless the sentence clearly indicates the contrary meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0076] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which this application belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with the relevant technical literature and the contents of the current disclosure, and unless defined, shall not be overly interpreted as ideal or very formal meanings.

[0077] Figure 1 It is an assembly schematic diagram of the vehicle-mounted compressor suspension assembly of the utility model. Figure 2 It is a three-dimensional diagram of the vehicle-mounted compressor of the utility model. Figure 3 It is a stereoscopic diagram of the vehicle-mounted compressor suspension assembly of the utility model. Figure 4 This is a three-dimensional diagram of the L-shaped compressor bracket in the vehicle-mounted compressor suspension assembly of the utility model. Figures 1 to 4 As shown, the vehicle-mounted compressor suspension assembly of the utility model includes: an L-shaped compressor bracket 41, a plurality of compressor mounting kits and a plurality of vehicle body mounting kits. The L-shaped compressor bracket 41 includes a first side plate 411 connected to the compressor 2 and a second side plate 412 connected to the vehicle body cross beam 1, and the compressor 2 has a plurality of compressor mounting holes 21. The compressor mounting kit is sleeved in the positioning hole of the first side plate 411, and the compressor mounting kit has a circumferentially arranged shock-absorbing pad and buffer blocks respectively arranged at both ends of the axial direction, and the compressor mounting kit is screwed to the compressor mounting hole 21 by a first bolt 5. The vehicle body mounting kit is sleeved in the positioning hole of the second side plate 412, and the vehicle body mounting kit has a circumferentially arranged shock-absorbing pad and buffer blocks respectively arranged at both ends of the axial direction, and the vehicle body mounting kit is screwed to the vehicle body cross beam 1 by a second bolt 6. The compressor 2 is located on the side of the first side plate 411 close to the second side plate 412, but is not limited thereto.

[0078] Figure 5 It is an assembly drawing of a compressor suspension component in an on-vehicle compressor suspension assembly of the utility model in an installed state. Figure 6 It is a stereoscopic diagram of a U-shaped anti-rotation bracket in a vehicle-mounted compressor suspension assembly of the utility model. Figure 7 It is a stereoscopic diagram of a compressor suspension limiting ring in the vehicle-mounted compressor suspension assembly of the utility model. Figure 8 This is a three-dimensional diagram of the compressor suspension component in the vehicle-mounted compressor suspension assembly of the utility model. Figures 5 to 8As shown, the compressor installation kit of the utility model includes a compressor suspension assembly 42 with a circumferential shock-absorbing pad, two compressor suspension limit rings 43 and a U-shaped anti-rotation bracket 44, the compressor suspension assembly 42 includes an inner sleeve 421, a first shock-absorbing pad 422 and a first outer sleeve 423 which are surrounded in sequence from the inside to the outside, and a compressor suspension limit ring 43, an inner sleeve 421, another compressor suspension limit ring 43 and a U-shaped anti-rotation bracket 44 are riveted together in sequence, but not limited to this.

[0079] In a preferred embodiment, the inner sleeve 421, the first shock-absorbing pad 422 and the first outer sleeve 423 are vulcanized and bonded to form the compressor suspension assembly 42, but the present invention is not limited thereto.

[0080] In a preferred embodiment, the U-shaped anti-rotation bracket 44 has a central through hole 441 and anti-rotation side walls 442 located on both sides of the central through hole 441 , and the anti-rotation side walls 442 are limitedly engaged on both sides of the compressor mounting hole 21 , but not limited thereto.

[0081] In a preferred embodiment, the compressor suspension limit ring 43 includes a stacked first buffer block 431 and a first gasket 432 , and the first gasket 432 abuts against two ends of the compressor suspension assembly 42 , but is not limited thereto.

[0082] Fig. 9 It is an assembly drawing of the vehicle body suspension component in the vehicle-mounted compressor suspension assembly of the utility model under the installation state. Fig.10 It is a stereoscopic diagram of a vehicle body suspension limiting ring in the vehicle-mounted compressor suspension assembly of the utility model. Fig.11 It is a stereoscopic diagram of a vehicle body suspension component in the vehicle-mounted compressor suspension assembly of the utility model. Fig.12 This is a three-dimensional diagram of the mounting fixture in the vehicle compressor suspension assembly of the utility model. Figures 9 to 12 As shown, the vehicle body installation kit of the utility model includes a vehicle body suspension component 45 with a circumferential shock-absorbing pad and a vehicle body suspension limit ring 46. The vehicle body suspension component 45 includes an anti-rotation inner sleeve 451, a second shock-absorbing pad 452 and a second outer sleeve 453 which are sequentially surrounded from the inside to the outside. The end face of the first end of the vehicle body suspension component 45 is provided with a vulcanized rubber layer 454, and the second end is riveted to the vehicle body suspension limit ring 46, but not limited to this.

[0083] In a preferred embodiment, the anti-rotation inner sleeve 451, the second shock-absorbing pad 452 and the second outer sleeve 453 are vulcanized and bonded to form the vehicle body suspension assembly 45, and the exposed end of the anti-rotation inner sleeve 451 is provided with a flat square, but the present invention is not limited thereto.

[0084] In a preferred embodiment, the vehicle body suspension limiting ring 46 includes a stacked second buffer block 461 and a second gasket 462 , and the second gasket 462 abuts against the second end of the vehicle body suspension assembly 45 , but the present invention is not limited thereto.

[0085] The utility model also provides a method for installing a vehicle-mounted compressor, which adopts the above-mentioned vehicle-mounted compressor suspension assembly and includes the following steps:

[0086] S110, Reference Fig. 9 As shown, the second end of the vehicle body suspension assembly 45 is riveted to the vehicle body suspension limiting ring 46 to form a vehicle body mounting kit.

[0087] S120 , matching the anti-rotation slot 31 of the mounting fixture 3 with the flat square clearance of the anti-rotation inner sleeve 451 of the vehicle body suspension assembly 45 , and fixing the mounting fixture 3 and the vehicle body cross beam 1 .

[0088] S130 , after the vehicle body installation kit is screwed to the vehicle body cross beam 1 by the second bolt 6 , the installation fixture 3 is removed.

[0089] S140, Reference Figure 5 As shown, a compressor suspension stop ring 43, an inner sleeve 421, another compressor suspension stop ring 43 and a U-shaped anti-rotation bracket 44 are riveted in sequence to form a compressor installation kit.

[0090] S150, screw the vehicle body suspension assembly 45 to the vehicle body cross beam 1 through the first bolt 5. The relevant technical features are as described above and will not be repeated here.

[0091] Since the compressor is a vibration source during operation, it will generate vibration and noise, which will be transmitted to the vehicle body, affecting the vehicle riding experience. The rubber in the compression bracket suspension of the utility model has a certain degree of stiffness and damping, which can isolate the vibration generated by compression from being transmitted to the vehicle body and can isolate the external vibration from being transmitted to the compressor. The compressor suspension bracket of the utility model has a limiting function, which can control the displacement of the compressor under harsh working conditions and avoid collision between the compressor and surrounding parts. The compressor bracket suspension of the utility model has a certain degree of stiffness and can support the compressor. The utility model adopts secondary vibration isolation to reduce the natural frequency of the compressor suspension system, avoid the operating frequency of the compressor, and prevent resonance; at the same time, it can alleviate the resonance caused by insufficient hard-point dynamic stiffness of the vehicle body assembly and improve the NVH effect. In addition, a limiting block is provided at one end of the vehicle body suspension, and the other end is limited by the bushing end face rubber combined with the vehicle body, which reduces one limiting block and reduces costs.

[0092] The specific implementation of the utility model is as follows:

[0093] refer to Figures 1 to 12The tubular contact surfaces between the inner sleeve 421, the first shock absorbing pad 422 and the first outer sleeve 423 are vulcanized and bonded to form the compressor suspension assembly 42. The first buffer block 431 and the first gasket 432 are vulcanized to form the compressor suspension limit ring 43. The tubular contact surfaces between the anti-rotation inner sleeve 451, the second shock absorbing pad 452 and the second outer sleeve 453 are vulcanized and bonded to form the vehicle body suspension assembly 45. The second buffer block 461 and the second gasket 462 are vulcanized to form the vehicle body suspension limit ring 46. Now press the compressor suspension assembly 42 and the vehicle body suspension assembly 45 into the corresponding holes of the compressor bracket; then rivet the compressor suspension limit ring 43, the vehicle body suspension limit ring 46 and the U-shaped anti-rotation bracket 44 to the inner sleeves corresponding to the compressor suspension assembly 42 and the vehicle body suspension assembly s45 to form the vehicle-mounted compressor suspension assembly 4.

[0094] At this time, the first bolt 5 and the second bolt 6 are used to fasten the vehicle compressor suspension assembly 4, the compressor 2 and the vehicle body cross beam 1 together (the installation fixture 3 is required when installing the vehicle body cross beam and the compressor bracket, and the installation fixture 3 can be pulled out after the installation is completed). Principle of preventing the first shock absorbing pad 422 from rotating when installing the compressor suspension (see Figure 5 ): During the installation of the compressor suspension assembly 42, the inner sleeve 421, the first gasket 432 and the U-shaped anti-rotation bracket 44 are riveted together to form a whole, thereby ensuring that the combined whole will not rotate during the tightening of the first bolt 5. During the tightening of the first bolt 5, the U-shaped anti-rotation bracket 44 and the outer surface of the compressor mounting hole 21 are engaged together to effectively prevent the inner sleeve from rotating (the outer periphery of the compressor mounting hole 21 is rectangular, and the anti-rotation side walls 442 on both sides of the U-shaped anti-rotation bracket 44 are engaged with the rectangular contour of the outer periphery of the compressor mounting hole 21 to prevent rotation), thereby controlling the rotation of the first shock absorber pad 422 during the tightening process. Principle of vehicle body suspension installation to prevent the second shock absorber pad 452 from rotating (see Fig. 9 ): In the installation of the vehicle body suspension assembly 45, the anti-rotation inner sleeve 451 (the inner hole of the inner sleeve is threaded) and the second gasket 462 are riveted into a whole. First, the slot of the mounting fixture 3 and the end flat square of the anti-rotation inner sleeve 451 are installed together (clearance fit). The mounting fixture 3 and the vehicle body cross beam 1 are fixed. During the tightening process of the second bolt 6, the anti-rotation inner sleeve 451 is stuck due to the anti-rotation slot 31 of the mounting fixture 3, which effectively prevents the anti-rotation inner sleeve 451 from rotating, thereby controlling the second shock absorbing pad 452 from rotating during the tightening process.

[0095] from Figure 5 and 9 It can be seen that during the tightening process of the first bolt 5 and the second bolt 6, the first shock-absorbing pad 422 and the second shock-absorbing pad 452 can be prevented from initial deformation, which would lead to loss of rigidity and damage to the rubber.

[0096] During vehicle operation, Fig. 9The second side plate of the vehicle-mounted compressor suspension assembly is mounted on the vehicle body cross beam 1 through the vehicle body suspension component 45, such as Figure 5 The compressor 2 is mounted through the compressor suspension assembly 42. Since the compressor is connected to the vehicle body through a rubber soft connection, the compressor will move. Under extreme working conditions, the up and down movement of the compressor can be controlled by the limit block, and the left and right movement can be limited by the rubber compression itself. The linear distance is about 3mm, and the nonlinear distance is about 5mm. Through the analysis of the suspension system, the radial stiffness of the compressor side suspension is designed to be about 50N / mm, the radial stiffness of the vehicle body side suspension is 1500N / mm, and the first six modal orders are lower than 50HZ.

[0097] When using the utility model vehicle compressor suspension assembly, after the shock absorber bracket is installed, the suspension anti-rotation measures are added to ensure that the state after installation is consistent with the design state, to avoid the rubber from being damaged during the bolt tightening process, and the torsional stiffness of the rubber will increase and affect the NVH effect. CAE analysis shows that there are no anti-rotation measures: 1. When the M8 bolts are tightened, the rubber will be damaged by about 10%; when the M10 bolts are tightened, the rubber will be damaged by about 25%. 2. When the M8 bolts are tightened, the rubber stiffness will increase by about 7%; when the M10 bolts are tightened, the rubber will be damaged by about 15%.

[0098] The shock-absorbing pad rubber of the utility model is not deformed or damaged during the installation process, and the relative positions of the inner sleeve and the outer sleeve of the suspension are consistent with the design state, ensuring that the stiffness of the suspension is consistent with the design state, avoiding the inconsistency between the design stiffness and the actual stiffness, thereby affecting the comfort of the entire vehicle, and the resulting rubber fatigue problem.

[0099] In the utility model, the inner sleeve and the limit block are riveted, and the inner wall of the inner sleeve is threaded instead of the nut, which saves space. The compressor bracket assembly and the body cross beam are installed with a clamp for anti-rotation installation. The compressor bracket assembly and the compressor mounting foot are connected with a U-shaped bracket for anti-rotation. Connection method on the body side: one side of the suspension is limited by a limit block, and the other side of the suspension is limited by vulcanized rubber on the end face and the body cross beam, which reduces one limit block and saves cost. Structural and system parameters: linear distance is about 3mm, and nonlinearity is about 5mm. Through the analysis of the suspension system, the radial stiffness of the compressor side suspension is designed to be about 50N / mm, and the radial stiffness of the body side suspension is 1500N / mm, and the first six modal orders are lower than 50HZ.

[0100] The utility model adopts two-level vibration isolation. The use of two-level vibration isolation can better reduce the natural frequency of the system. After analysis, the 6th order natural frequency of the suspension system can be reduced by 10-15HZ, which can better avoid the working rate of the compressor. Moreover, unlike the existing method of directly connecting the compressor to the crossbeam, the utility model has anti-rotation measures: the compressor side is connected by a U-shaped bracket and the body side is connected by a mounting clamp. The bracket and the body of the utility model are connected by suspension, and one end of the suspension has a limited block, and the other end uses the suspension end face rubber to contact the body crossbeam to limit the position.

[0101] In summary, the vehicle-mounted compressor suspension assembly of the utility model can prevent the shock-absorbing pad rubber from deformation and damage during the installation process, and the relative positions of the inner sleeve and the outer sleeve of the suspension are consistent with the design state, ensuring that the stiffness of the suspension is consistent with the design state, avoiding the inconsistency between the design stiffness and the actual stiffness, thereby affecting the comfort of the entire vehicle, and the resulting rubber fatigue problem.

[0102] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A vehicle-mounted compressor suspension assembly, characterized in that: include: An L-shaped compressor bracket (41), the L-shaped compressor bracket (41) comprising a first side plate (411) connected to the compressor (2) and a second side plate (412) connected to the vehicle body cross beam (1), the compressor (2) having a plurality of compressor mounting holes (21); A plurality of compressor installation kits are sleeved in the positioning holes of the first side plate (411), the compressor installation kits having shock-absorbing pads arranged circumferentially and buffer blocks respectively arranged at two axial ends, and the compressor installation kits are screwed to the compressor installation holes (21) by first bolts (5); and A plurality of vehicle body mounting kits are sleeved in the positioning holes of the second side plate (412), the vehicle body mounting kits having circumferentially arranged shock-absorbing pads and buffer blocks respectively arranged at two axial ends, and the vehicle body mounting kits are screwed to the vehicle body cross beam (1) via second bolts (6).

2. The vehicle-mounted compressor suspension assembly according to claim 1, characterized in that: The compressor installation kit comprises a compressor suspension assembly (42) having a circumferential shock-absorbing pad, two compressor suspension limiting rings (43) and a U-shaped anti-rotation bracket (44); the compressor suspension assembly (42) comprises an inner sleeve (421), a first shock-absorbing pad (422) and a first outer sleeve (423) which are sequentially surrounded from the inside to the outside; one compressor suspension limiting ring (43), the inner sleeve (421), another compressor suspension limiting ring (43) and the U-shaped anti-rotation bracket (44) are riveted together in sequence.

3. The vehicle-mounted compressor suspension assembly according to claim 2, characterized in that: The inner sleeve (421), the first shock-absorbing pad (422) and the first outer sleeve (423) are vulcanized and bonded to form the compressor suspension assembly (42).

4. The vehicle-mounted compressor suspension assembly according to claim 2, characterized in that: The U-shaped anti-rotation bracket (44) has a central through hole (441) and anti-rotation side walls (442) located on both sides of the central through hole (441), and the anti-rotation side walls (442) are limitedly engaged on both sides of the compressor installation hole (21).

5. The vehicle-mounted compressor suspension assembly according to claim 2, characterized in that: The compressor suspension limiting ring (43) comprises a stacked first buffer block (431) and a first gasket (432), wherein the first gasket (432) abuts against two ends of the compressor suspension assembly (42) respectively.

6. The vehicle-mounted compressor suspension assembly according to claim 2, characterized in that: The vehicle body installation kit comprises a vehicle body suspension component (45) having a circumferential shock-absorbing pad and a vehicle body suspension limiting ring (46); the vehicle body suspension component (45) comprises an anti-rotation inner sleeve (451), a second shock-absorbing pad (452) and a second outer sleeve (453) which are arranged in sequence from the inside to the outside; a vulcanized rubber layer (454) is provided on the end surface of the first end of the vehicle body suspension component (45), and the second end is riveted to the vehicle body suspension limiting ring (46).

7. The vehicle-mounted compressor suspension assembly according to claim 6, characterized in that: The anti-rotation inner sleeve (451), the second shock-absorbing pad (452) and the second outer sleeve (453) are vulcanized and bonded to form a vehicle body suspension assembly (45), and the exposed end of the anti-rotation inner sleeve (451) is provided with a flat square.

8. The vehicle-mounted compressor suspension assembly according to claim 6, characterized in that: The vehicle body suspension limiting ring (46) comprises a stacked second buffer block (461) and a second gasket (462), and the second gasket (462) abuts against the second end of the vehicle body suspension component (45).

9. The vehicle-mounted compressor suspension assembly according to claim 1, characterized in that: The compressor (2) is located on a side of the first side plate (411) close to the second side plate (412).

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