CN215805921U - Shock insulation bush and mounting bracket - Google Patents

Abstract

The utility model relates to a shock insulation bushing and a mounting bracket. The shock insulation bushing comprises an inner bushing, an elastic bushing and an outer bushing. Wherein the inner bushing is used for being connected with the compressor. The elastic sleeve is sleeved outside the inner bushing and is used for absorbing the vibration generated by the compressor. The outer bushing sleeve of outer bushing is established outside the elastic sleeve, and the outer bushing is used for being connected with compressor forehead support body frame. Further, the inner liner has a first radial length in a first direction and a second radial length in a second direction, the first direction intersecting the second direction, the first radial length being unequal in length to the second radial length. The shock insulation bushing can form elastic connection between the compressor and the support body frame, can effectively absorb shock generated in the work of the compressor, and further reduces the noise of the whole vehicle caused by the shock of the compressor.

Description

Shock insulation bush and mounting bracket

Technical Field

The utility model relates to the technical field of automobile spare and accessory parts, in particular to a shock insulation bushing and a mounting bracket.

Background

With the development of new energy automobile technology, electric automobiles are accepted by more and more users, and meanwhile, the requirements of customers on the quality of the whole automobiles are increased day by day. The compressor is used as a power source of an automobile air conditioner, and customers pay attention to the whole automobile noise caused by the compressor besides the whole automobile refrigeration performance.

The traditional electric automobile compressor generally directly loads on the motor or through simple and easy leg joint to the motor, the operating speed of compressor does not receive the speed of a motor restriction, and the compressor need often keep in high rotational speed running state, and the compressor can produce the vibrations of high frequency when high rotational speed running state, and then produces whole car noise, influences driver and passenger's comfortable experience in the car.

SUMMERY OF THE UTILITY MODEL

Therefore, a vibration isolation bushing and a mounting bracket are needed to solve the problem of reducing the noise of the whole vehicle.

In one aspect, the present application provides a seismic isolation bushing, comprising:

an inner liner having a first radial length in a first direction and a second radial length in a second direction, the first direction intersecting the second direction, the first radial length not having a length equal to the second radial length;

the elastic sleeve is sleeved outside the inner bushing; and the number of the first and second groups,

the outer bushing is sleeved outside the elastic sleeve.

The technical solution of the present application is further described below:

in one embodiment, the first direction is perpendicular to the second direction.

In one embodiment, the inner bushing is provided with a connecting hole for inserting a connecting piece for connecting a compressor.

In one embodiment, the connecting hole is provided with an internal thread, the connecting piece is provided with an external thread matched with the internal thread, and the connecting piece is in threaded fit with the connecting hole.

In one embodiment, the inner liner is provided with lightening holes.

In one embodiment, the lightening holes are at least two, and at least two lightening holes are distributed at intervals on the periphery of the connecting hole.

In one embodiment, the lightening holes are at least two, and at least two lightening holes are symmetrically distributed on two sides of the connecting hole along the first direction.

In one embodiment, the lightening holes are at least two, and at least two lightening holes are symmetrically distributed on two sides of the connecting hole along the second direction.

On the other hand, this application still provides a installing support, including the support body, the support body is equipped with two at least installation positions, every the installation position all is equipped with foretell shock insulation bush.

In one embodiment, the mounting position is provided with a mounting hole, the vibration isolation bushing is arranged in the mounting hole, and an outer bushing of the vibration isolation bushing is in interference fit with the mounting hole.

The shock insulation bushing and the mounting bracket are arranged between the inner bushing and the outer bushing through the elastic sleeve, so that when the compressor is connected to the inner bushing, and the bracket body of the compressor is connected to the outer bushing, the shock insulation bushing can be elastically connected between the compressor and the bracket body frame, the shock generated in the working process of the compressor can be effectively absorbed, and the noise of the whole vehicle caused by the shock of the compressor is reduced. And the shock insulation bush of this application specifically has first footpath length through configuring the interior bush into in the first direction, specifically has the second footpath length in the second direction, and the length of first footpath length with the length inequality of second footpath length to make the cover establish the elastic sleeve that the interior bush is outside and form asymmetric structure, and then make the elastic sleeve have different rigidity value on first direction and the second direction, corresponding can make the modal frequency of shock insulation bush in these two directions stagger, improved the interval and the modal decoupling ratio of each rigid body mode under the compressor installation state, and then improved shock attenuation noise abatement effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a seismic isolation bushing according to an embodiment;

FIG. 2 is a schematic structural view of another embodiment of a seismic isolation bushing;

FIG. 3 is a schematic view of a seismic isolation bushing according to yet another embodiment;

FIG. 4 is a schematic structural view of a mounting bracket of an embodiment;

fig. 5 is an exploded view of the structure of the table support shown in fig. 4.

Description of reference numerals:

10. a shock insulation bushing; 11. an inner liner; 111. a first radial length; 112. the second diameter is long; 113. connecting holes; 114. lightening holes; 12. an elastic sleeve; 13. an outer liner; 20. a stent body; 21. and (7) installing holes.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Specifically, the application provides a shock insulation bush 10 for absorb the vibrations that produce in the compressor work, and then reduce the whole car noise that compressor vibrations lead to. Referring to fig. 1, fig. 1 shows a schematic structural view of a seismic isolation bushing 10 according to an embodiment of the present invention. Specifically, the seismic isolation bushing 10 of an embodiment includes an inner bushing 11, an elastic bushing, and an outer bushing 13. The inner liner 11 is used for connection to a compressor. The elastic sleeve 12 is provided outside the inner liner 11 for absorbing vibration generated from the compressor. Outer bushing 13 the outer bushing 13 is sleeved outside the elastic sleeve 12, and the outer bushing 13 is used for being connected with the compressor forehead support body 20. Further, the inner liner 11 has a first radial length 111 in a first direction and a second radial length 112 in a second direction, the first direction and the second direction intersect, and the length of the first radial length 111 is not equal to the length of the second radial length 112. I.e. the inner liner 11 is of an asymmetric construction, for example as shown in fig. 1, the inner liner 11 is of an approximately elliptical construction.

Further, traditional interior bush 11 is mostly cylindrical structure, and the cover that makes establishes the 12 elastic sleeves that form concentric symmetrical structure outside interior bush 11, and 12 shock attenuation effects of concentric symmetrical structure elastic sleeves are not good. The inner bushing 11 of the present application is designed to be the first diameter length 111 in the first direction, and is designed to be the second diameter length 112 in the second direction, and the length of the first diameter length 111 is unequal to the length of the second diameter length 112, so that the elastic bushing 12 sleeved outside the inner bushing 11 forms an asymmetric structure, and further the elastic bushing 12 has different rigidity values in the first direction and the second direction, and accordingly, the modal frequencies of the vibration isolation bushing 10 in the two directions can be staggered, the interval and the modal decoupling rate of each rigid body mode in the installation state of the compressor are improved, and the vibration absorption and noise removal effects are further improved.

The vibration isolation bushing 10 is characterized in that the elastic sleeve 12 is arranged between the inner bushing 11 and the outer bushing 13, so that when the compressor is connected to the inner bushing 11, and the support body 20 of the compressor is connected to the outer bushing 13, the vibration isolation bushing 10 can be elastically connected between the compressor and the support body 20, vibration generated in the work of the compressor can be effectively absorbed, and noise of the whole vehicle caused by vibration of the compressor is reduced. In addition, the inner bushing 11 is configured to have a first radial length 111 in the first direction, the inner bushing has a second radial length 112 in the second direction, and the length of the first radial length 111 is not equal to that of the second radial length 112, so that the elastic bushing 12 sleeved outside the inner bushing 11 forms an asymmetric structure, the elastic bushing 12 has different stiffness values in the first direction and the second direction, and accordingly, the modal frequencies of the vibration isolation bushing 10 in the two directions can be staggered, the interval and modal decoupling rate of rigid body modes in the installation state of the compressor are improved, and the vibration absorption and noise removal effects are further improved.

Further, referring to fig. 1, in the present embodiment, the first direction is perpendicular to the second direction. Preferably, the first direction is a vertical direction, the second direction is a horizontal direction, and the length of the first radial length 111 along the first direction is greater than the length of the second radial length 112 along the second direction, so that the cross section of the inner bushing 11 forms an approximately elliptical profile, and the elastic bushing 12 has different stiffness values in the horizontal direction and the vertical direction, and accordingly, the modal frequencies of the vibration isolation bushing 10 in the horizontal direction and the vertical direction can be staggered, the interval and modal decoupling rate of each rigid body mode in the installation state of the compressor are improved, and the vibration absorption and noise removal effects are further improved.

With continued reference to fig. 1, the inner liner 11 is provided with a connection hole 113, the connection hole 113 is used for inserting a connection member, and the connection member is used for connecting a compressor. Preferably, the connection hole 113 is provided with an internal thread, the connection member is provided with an external thread matching the internal thread, and the connection member is threadedly engaged with the connection hole 113. Specifically, during installation, the bracket body 20 is assembled on the motor, then the connecting piece penetrates through the compressor and is connected into the connecting hole 113, and finally the compressor is directly fixed on the bracket body 20 by utilizing the characteristic of high strength of the vulcanized vertical edges on the two sides of the inner bushing 11, so that the installation is more convenient and firm.

It should be noted that, in another embodiment, the connection hole 113 may not be provided with an internal thread, and specifically, after or after the connection member is sequentially inserted into the compressor and the connection hole 113, a nut is fixed at one end of the connection member away from the compressor, which also can achieve the purpose of stably connecting the compressor and the vibration isolation bushing 10.

Further, the inner liner 11 is provided with lightening holes 114. The lightening holes 114 can effectively reduce the weight of the vibration-isolating bushing 10, thereby reducing the overall weight of the compressor mounting bracket. In addition, the lightening holes 114 can enable the inner bushing 11 to have certain elastic deformation capacity, and further improve the shock absorption and noise elimination effects of the seismic isolation bushing 10. Further, the position size and angle of the lightening hole 114 can be adjusted according to actual conditions according to different assembly positions of the compressor and the rotating speed working condition of the compressor.

Specifically, at least two lightening holes 114 are provided, and the at least two lightening holes 114 are distributed at intervals on the periphery of the connecting hole 113. For example, as shown in fig. 1, the number of the shock absorbing holes is only four, and four lightening holes 114 are distributed at intervals on the periphery of the connecting hole 113, so that the weight of the seismic isolation bushing 10 is reduced, and the shock absorbing and noise eliminating effects of the seismic isolation bushing 10 are improved. In another embodiment, at least two lightening holes 114 are symmetrically distributed on both sides of the connecting hole 113 in the first direction, for example, as shown in fig. 2, the inner bushing 11 is provided with two lightening holes 114, and the two lightening holes 114 are symmetrically distributed on both sides of the connecting hole 113 in the first direction, thereby improving the shock absorbing effect of the seismic isolation bushing 10 in the first direction. Likewise, in a further embodiment, at least two lightening holes 114 are symmetrically distributed on both sides of the connecting hole 113 in the second direction, for example, as shown in fig. 3, the inner bushing 11 is provided with two lightening holes 114, and the two lightening holes 114 are symmetrically distributed on both sides of the connecting hole 113 in the second direction, thereby improving the shock-absorbing effect of the seismic isolation bushing 10 in the second direction.

Further, in the present embodiment, the inner liner 11 is a cast aluminum material to reduce the weight of the inner liner 11, and the outer liner 13 is a cast steel material to increase the rigidity of the outer liner 13. The elastic sleeve 12 is made of rubber materials, and the elastic sleeve 12 is filled between the inner bushing 11 and the outer bushing 13 by adopting a vulcanization process.

Further, another aspect of the present application also provides a mounting bracket for mounting the compressor to the motor. Specifically, referring to fig. 4-5, a mounting bracket includes a bracket body 20, the bracket body 20 being provided with at least two mounting locations, each mounting location being provided with a seismic isolation bushing 10 of any of the embodiments described above. For example, in the present embodiment, the bracket body 20 is provided with three cases arranged in a triangular shape according to the installation position, thereby improving the connection stability of the compressor and the bracket body 20. Further, the mounting position is provided with a mounting hole 21, the seismic isolation bushing 10 is arranged in the mounting hole 21, and the outer bushing 13 of the seismic isolation bushing 10 is in interference fit with the mounting hole 21.

The mounting bracket is matched with the shock insulation bushing 10 through the bracket body 20, the shock insulation bushing 10 enables the elastic sleeve 12 to be arranged between the inner bushing 11 and the outer bushing 13, therefore, when the compressor is connected with the inner bushing 11, the bracket body 20 of the compressor is connected to the outer bushing 13, the shock insulation bushing 10 can be elastically connected between the compressor and the bracket body 20, vibration generated in the working process of the compressor can be effectively absorbed, and noise of the whole vehicle caused by vibration of the compressor is reduced. In addition, the inner bushing 11 is configured to have a first radial length 111 in the first direction, the inner bushing has a second radial length 112 in the second direction, and the length of the first radial length 111 is not equal to that of the second radial length 112, so that the elastic bushing 12 sleeved outside the inner bushing 11 forms an asymmetric structure, the elastic bushing 12 has different stiffness values in the first direction and the second direction, and accordingly, the modal frequencies of the vibration isolation bushing 10 in the two directions can be staggered, the interval and modal decoupling rate of rigid body modes in the installation state of the compressor are improved, and the vibration absorption and noise removal effects are further improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A seismic isolation bushing, comprising:

an inner liner having a first radial length in a first direction and a second radial length in a second direction, the first direction intersecting the second direction, the first radial length not having a length equal to the second radial length;

the elastic sleeve is sleeved outside the inner bushing; and the number of the first and second groups,

the outer bushing is sleeved outside the elastic sleeve.

2. Vibration-isolating bushing according to claim 1, wherein the first direction is perpendicular to the second direction.

3. Vibration-isolating bush according to claim 1, wherein the inner bush is provided with a connecting hole for inserting a connecting member for connecting a compressor.

4. A seismic isolation bushing according to claim 3, wherein said connection hole is provided with an internal thread, and said connecting member is provided with an external thread matching said internal thread, said connecting member being screw-fitted to said connection hole.

5. A vibration-isolating bush as in claim 3, wherein the inner bush is provided with lightening holes.

6. Vibration-isolating bushing according to claim 5, wherein the lightening holes are provided with at least two, and at least two lightening holes are distributed at intervals on the periphery of the connecting hole.

7. Vibration-isolating bushing according to claim 5, wherein there are at least two lightening holes, at least two lightening holes being symmetrically distributed on both sides of the connecting hole along the first direction.

8. Vibration-isolating bushing according to claim 5, wherein there are at least two lightening holes, at least two lightening holes being symmetrically distributed on both sides of the connecting hole along the second direction.

9. A mounting bracket comprising a bracket body provided with at least two mounting locations, each mounting location being provided with a seismic isolation bushing as claimed in any one of claims 1 to 8.

10. The mounting bracket of claim 9, wherein the mounting location defines a mounting hole, the seismic isolation bushing is disposed within the mounting hole, and an outer bushing of the seismic isolation bushing is in interference fit with the mounting hole.

Images