CN116512872A

CN116512872A - Support, automobile air conditioner and automobile

Info

Publication number: CN116512872A
Application number: CN202310599907.3A
Authority: CN
Inventors: 刘学范; 王彩霞; 李达; 谢志强
Original assignee: Chongqing Ruilan Automobile Research Institute Co ltd; Zhejiang Geely Holding Group Co Ltd
Current assignee: Chongqing Ruilan Automobile Research Institute Co ltd; Zhejiang Geely Holding Group Co Ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-08-01

Abstract

The invention discloses a bracket, which is used for installing a bracket connected with an automobile air conditioner compressor on an automobile auxiliary frame, and comprises a main body part, a first fixing part, a second fixing part and a third fixing part, wherein the first fixing part extends along the direction far away from one side of the main body part; the second fixing part is arranged in parallel with the first fixing part; the third fixing portion comprises a channel and a supporting lug, the channel is located on the surface of the main body portion, one end of the channel penetrates through the first fixing portion, and the supporting lug is located at the other end of the channel and extends along a direction away from the plane where the main body portion is located. The invention also discloses an automobile air conditioner and an automobile with the bracket.

Description

Support, automobile air conditioner and automobile

Technical Field

The invention relates to the technical field of vehicles, in particular to a bracket, an automobile air conditioner with the bracket and an automobile.

Background

With the continuous development of the new energy automobile industry, various performances are widely focused, NVH (noise, vibration and harshness) performance is one of key performances, and the evaluation requirement is also growing. In the use of vehicle air conditioner, vehicle air conditioner compressor links to each other with power assembly, cabin longeron or sub vehicle frame through the compressor support generally, requires the compressor support to have higher mode, and then guarantees not taking place noise or problem such as vibration and influence the NVH quality of whole car. In the prior art, the fuel oil vehicle system structure is mostly used, the mode of the compressor support is improved by adopting materials such as aluminum alloy and the like, the NVH attribute requirement is met, but the quality of the compressor support is heavier and the cost is higher, the arrangement of the compressor support in a cabin is limited, the difficulty is also increased for the total arrangement and collision collapse design of the whole vehicle, and therefore, the technical staff in the field aim at developing a support to solve the problems in the prior art.

Disclosure of Invention

The invention aims to provide a bracket which has the technical effects of light weight, high mode and meeting various space installation requirements, and can overcome the defects in the prior art; another object of the present invention is to provide an air conditioner for an automobile and an automobile having the same.

The technical aim of the invention is realized by the following technical scheme:

a bracket for mounting a bracket connected with an automobile air conditioner compressor on an automobile auxiliary frame, comprising a main body part, a first fixing part, a second fixing part and a third fixing part, wherein the first fixing part extends along a direction far away from one side of the main body part; the second fixing part is arranged in parallel with the first fixing part; the third fixing portion comprises a channel and a supporting lug, the channel is located on the surface of the main body portion, one end of the channel penetrates through the first fixing portion, and the supporting lug is located at the other end of the channel and extends along a direction away from the plane where the main body portion is located.

Preferably, a first connecting hole, a second connecting hole and a third connecting hole for assembling with the auxiliary frame of the automobile are formed in the edge position of the main body part, and the first connecting hole, the second connecting hole and the third connecting hole are arranged in a triangle.

Preferably, the back of the main body is provided with first reinforcing ribs, and the first reinforcing ribs are provided in a plurality of and staggered arrangement.

Preferably, a weight reduction region for reducing the weight of the bracket is formed between the plurality of first reinforcing ribs.

Preferably, the thickness of the first reinforcing ribs is not more than 3mm, and the interval is not less than 7mm.

Preferably, the end part of the first fixing part is provided with a first mounting hole, the end part of the second fixing part is provided with a second mounting hole, the support lug of the third fixing part is provided with a third mounting hole, and the first mounting hole, the second mounting hole and the third mounting hole are used for being connected with an automobile air conditioner compressor in an adapting mode.

Preferably, the back of the first fixing portion is provided with second reinforcing ribs, and the second reinforcing ribs are arranged in a plurality of staggered manner.

Preferably, a wire harness plate is arranged on one side of the middle of the first fixing portion, and a wire harness hole for a wire harness to pass through is formed in the wire harness plate.

The technical scheme of the invention also provides an automobile air conditioner, which comprises an automobile air conditioner compressor and the bracket in any one of the technical schemes, wherein the automobile air conditioner compressor is detachably and fixedly connected with the bracket.

The technical scheme of the invention also provides an automobile, comprising the automobile air conditioner.

In summary, the invention has the following beneficial effects:

the bracket is made of plastic materials, so that the weight is light and the production cost can be reduced; through the frame structure of brand-new staggered arrangement, the mode of the bracket is better and the bracket is more convenient to arrange in the limited cabin space, so that the technical problems of heavy quality, insufficient mode and severe installation position requirement of the bracket in the prior art are solved, and the bracket can be popularized, implemented and applied.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a bracket according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the bracket shown in FIG. 1 assembled with an automotive air conditioning compressor and an automotive subframe in a use state;

FIG. 3 is a schematic view of the bracket shown in FIG. 1 in a bottom view;

FIG. 4 is a schematic view of the bracket shown in FIG. 1 in a rear view;

FIG. 5 is a comparative view of the mode of the stent before and after the first stiffener is not provided;

FIG. 6 is a comparative view of the mode of the stent before and after the second stiffener is not provided;

fig. 7 is a modal alignment diagram of a stent with the first and second fixed portions not connected by a curved surface and a stent connected by a curved surface.

Reference numerals illustrate:

100. a bracket; 1. a main body portion; 2. a first fixing portion; 3. a second fixing portion; 4. a third fixing portion; 11. a first connection hole; 12. a second connection hole; 13. a third connection hole; 14. a first reinforcing rib; 15. a weight-loss region; 21. a first mounting hole; 22. a second reinforcing rib; 23. a harness plate; 24. a wire bundle hole; 31. a second mounting hole; 41. a channel; 42. a support lug; 43. a third mounting hole;

200. an automotive air conditioning compressor;

300. an automobile auxiliary frame.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.

The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like are used as references to orientations or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is conventionally disposed in use, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore are not to be construed as limiting the invention.

The terms "first," "second," "third," and the like, are merely used for distinguishing between similar elements and not necessarily for indicating or implying a relative importance or order.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.

Referring to fig. 1 and 2, a bracket 100 according to a first aspect of the present invention is provided for mounting the bracket 100 connected to an air conditioner compressor 200 of a vehicle on a sub-frame 300 of the vehicle. The term "automobile" as used herein refers to an automobile having no overheat components such as an engine in its cabin.

In this embodiment, the material of the bracket 100 is preferably plastic, and injection molding is used to form the bracket 100 in order to reduce the weight and the production cost. Because the prior art mostly adopts aluminum alloy material, and the density of the aluminum alloy material is about 2.5 times of that of plastic, the mass of the bracket 100 in this embodiment is about 40% of that of the aluminum alloy material under the condition of the same volume, and the weight is lighter.

In this embodiment, the bracket 100 includes a main body portion 1, a first fixing portion 2, a second fixing portion 3, and a third fixing portion 4, wherein the main body portion 1, the first fixing portion 2, the second fixing portion 3, and the third fixing portion 4 are integrally formed by an injection molding process.

The main body part 1 is horizontally placed and is plate-shaped, and a first connecting hole 11, a second connecting hole 12 and a third connecting hole 13 for assembling with the automobile auxiliary frame 300 in a bolt mode are formed at the edge position of the top of the main body part, wherein the first connecting hole 11, the second connecting hole 12 and the third connecting hole 13 are arranged in a triangular arrangement mode, and the stability of connection between the bracket 100 and the automobile auxiliary frame 300 is ensured. The thickness of the main body 1 is not more than 4mm in order to meet the requirements of the technical process route.

Referring to fig. 3, in order to improve the structural strength and the mode of the bracket 100, in this embodiment, a plurality of first reinforcing ribs 14 are disposed at the bottom of the main body 1, and are in a plate shape and are staggered along a direction perpendicular or parallel to a line connecting the central axis of the first connecting hole 11 and the central axis of the third connecting hole 13, so as to define a plurality of load paths to further distribute or absorb vibration energy.

Preferably, the thickness of the first reinforcing ribs 14 is not more than 3mm and the interval is not less than 7mm.

Referring to fig. 5, as shown by the results of the frequency response test, analysis and verification of the displacement, when the first reinforcing ribs 14 are not disposed on the bracket 100, the modal value of the bracket 100 is 243Hz; when the bracket 100 is modified, i.e. provided with the first reinforcing ribs 14, the mode value of the bracket 100 is 289Hz. It can be seen that, under the action of the first reinforcing ribs 14, the deformation resistance of the support 100 is improved, the situation of out-of-control vibration mode can be further prevented, and the mode 46Hz of the support 100 is effectively improved. The modes referred to herein are natural vibration characteristics of the mechanical structure, each of the modes of each order corresponding to a particular natural frequency, mode shape and damping ratio. The mode shape refers to the morphology of each order of mode vibration. If the first-order mode appears when the excitation frequency of the external force is equal to the natural frequency of the object, the vibration mode of the object is called a first-order vibration mode or a main vibration mode. The mode of the stent 100 in this embodiment refers to the first-order mode of the stent 100, and the mode shape of the stent 100 refers to the first-order mode shape of the stent 100.

In view of reducing the weight of the bracket 100, a weight reducing area 15 is provided in a hollowed-out area surrounded by the first reinforcing ribs 14 and the side surface of the main body 1, and a plurality of weight reducing areas 15 are provided. Experiments prove that the weight of the bracket 100 can be reduced by 90g under the action of the weight reduction area 15 after the basic connecting structure of the bracket 100 is reserved, and the weight reduction percentage is 12% compared with the weight reduction without the weight reduction treatment, thereby having a further positive effect on reducing the self weight of the bracket 100.

Referring to fig. 1 and 4, in the present embodiment, the first fixing portion 2 is arc-shaped and extends upward from one side of the main body 1, and has a first mounting hole 21 for fixing the automotive air conditioning compressor 200 by means of a bolt at an end portion thereof, and a second reinforcing rib 22 for further improving the structural strength and the mode of the bracket 100 at a back portion thereof.

The connection between the first fixing portion 2 and the main body portion 1 is a curved surface, and the specific shape relates to the shape of the outer casing of the automobile air conditioner compressor 200.

In the present embodiment, the second reinforcing ribs 22 are provided in plurality, and are integrally formed in a mesh structure, including plate-like reinforcing ribs and arc-like reinforcing ribs, and are staggered in a direction different from or perpendicular to the line connecting the central axes of the first and third connecting holes 11 and 13, so that a plurality of load paths can be defined to thereby distribute or absorb vibration energy.

Referring to fig. 6, as shown by the results of the frequency response test, analysis and verification of the displacement, when the second reinforcing ribs 22 are not disposed on the bracket 100, the modal value of the bracket 100 is 252Hz; when the bracket 100 is modified, i.e. provided with the second reinforcing ribs 22, the mode value of the bracket 100 is 289Hz. Therefore, under the action of the second reinforcing ribs 22, the deformation resistance of the bracket 100 is improved, the out-of-control condition of the vibration mode can be further prevented, and the mode 37Hz of the bracket 100 is effectively improved.

Preferably, the thickness of the second reinforcing ribs 22 is not more than 3mm and the interval is not less than 7mm.

In the present embodiment, a harness plate 23 is provided at one side of the middle of the first fixing portion 2, and a harness hole 24 is opened at the middle of the harness plate 23 for passing a harness of the automobile air conditioner compressor 200.

In the present embodiment, the second fixing portion 3 is arranged in parallel with the first fixing portion 2, extends upward from one side of the main body portion 1, is also arc-shaped, and has an end portion provided with a second mounting hole 31 for fixing the automotive air conditioning compressor 200 by means of a bolt.

The connection between the second fixing portion 3 and the main body portion 1 is a curved surface, and the specific shape relates to the shape of the outer casing of the automobile air conditioner compressor 200.

The connection between the second fixing portion 3 and the first fixing portion 2 is also a curved surface extending upward from one side of the main body portion 1. Referring to fig. 7, as shown by the results of the frequency response test, analysis and verification of the displacement, when the first fixing portion 2 and the second fixing portion 3 on the bracket 100 are not connected by the curved surface, the modal value of the bracket 100 is 281Hz; when the bracket 100 is improved, that is, the first fixing portion 2 and the second fixing portion 3 are connected by a curved surface, the mode value of the bracket 100 is 289Hz. Therefore, under the action of the connecting curved surface, the deformation resistance of the bracket 100 is improved, the situation of out-of-control vibration mode can be further prevented, and the mode 8Hz of the bracket 100 is effectively improved.

In the present embodiment, the third fixing portion 4 includes a channel 41 and a lug 42, wherein the channel 41 is located on the surface of the top of the main body portion 1, and the lug 42 extends upward in a direction perpendicular to the plane of the main body portion 1.

The passage 41 has an open arc shape, one end of which penetrates the first fixing portion 2, and a through hole is formed in the first fixing portion 2, so that the installation of bolts for fastening the automobile air conditioner compressor 200 is facilitated; the lugs 42 are plate-shaped and are provided at the opposite end of the passage 41 from the end penetrating the first fixing portion 2, and have third mounting holes 43 formed at the end thereof for connection with the air conditioner compressor 200 of the vehicle in the form of bolts.

The center axis of the through hole formed by the passage 41 having one end penetrating the first fixing portion 2 is aligned with the center axis of the third mounting hole 43 of the lug 42.

In summary, the bracket 100 is mounted on the auxiliary frame 300 of the automobile through the three connection holes of the main body 1 by bolts, and is connected with the air conditioner compressor 200 of the automobile through the mounting holes of the first, second and third fixing parts 2, 3 and 4 by bolts, so as to ensure the connection stability of the three parts. In terms of mode, the first-order mode value of the bracket 100 reaches 289Hz by arranging the first reinforcing ribs 14, the second reinforcing ribs 22 and the curved surface connecting structure which are staggered.

A preferred embodiment of the second aspect of the present invention provides an automotive air conditioner comprising an automotive air conditioner compressor and a bracket 100 as described in any of the previous embodiments, wherein the automotive air conditioner compressor is detachably fixedly connected to the bracket 100. When the automobile air conditioner compressor is connected with the bracket 100, a first bolt sequentially passes through a first mounting hole 21 on a first fixing part 2 on the bracket 100 and a top mounting hole of a front shell of the automobile air conditioner compressor to be matched with a fastening nut so as to realize first fixing of the automobile air conditioner compressor; the second bolts sequentially pass through the second mounting holes 31 on the second fixing part 3 on the bracket 100 and the mounting holes on the rear shell of the automobile air conditioner compressor to be matched with the fastening nuts so as to realize the second fixing of the automobile air conditioner compressor; the third bolt sequentially passes through the third mounting hole 43 on the third fixing part 4 on the bracket 100 and the bottom mounting hole of the front shell of the automobile air conditioner compressor to be matched with the fastening nut so as to realize third fixing of the automobile air conditioner compressor. The fixed connection between the bracket 100 and the automobile air conditioner compressor is achieved by means of three-point fixation.

A preferred embodiment of the third aspect of the invention provides a vehicle comprising a vehicle air conditioner as described in the previous embodiments. The automobile refers to an automobile without overheat components such as an engine and the like in a cabin, such as a new energy automobile.

Compared with the prior art, the invention has the following beneficial effects:

the bracket 100 is made of plastic materials, has light weight and can reduce the production cost; by arranging the structures of the first reinforcing ribs 14 and the second reinforcing ribs 22 which are staggered, the mode of the bracket is better, and the first-order mode value reaches 289Hz; the novel frame structure has the advantages that the bracket 100 can be more conveniently arranged in a limited cabin space, the technical problems of heavy weight, insufficient mode and severe installation position requirements of the bracket in the prior art are solved, and the bracket can be popularized, implemented and applied.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims

1. A bracket for mounting a bracket (100) connected with an automotive air conditioner compressor (200) on an automotive subframe (300), characterized by comprising a main body part (1), a first fixing part (2), a second fixing part (3) and a third fixing part (4), wherein the first fixing part (2) extends in a direction away from one side of the main body part (1); the second fixing part (3) is arranged in parallel with the first fixing part (2); the third fixing portion (4) comprises a channel (41) and a supporting lug (42), the channel (41) is located on the surface of the main body portion (1) and one end of the channel penetrates through the first fixing portion (2), and the supporting lug (42) is located at the other end of the channel (41) and extends along a direction away from the plane where the main body portion (1) is located.

2. The bracket according to claim 1, wherein a first connecting hole (11), a second connecting hole (12) and a third connecting hole (13) for assembling with the auxiliary frame (300) of the automobile are formed at the edge position of the main body part (1), and the first connecting hole (11), the second connecting hole (12) and the third connecting hole (13) are arranged in a triangle shape.

3. A bracket according to claim 2, characterized in that the back of the body part (1) is provided with first stiffening ribs (14), the first stiffening ribs (14) being provided in a plurality and staggered arrangement.

4. A bracket according to claim 3, characterized in that a weight-reducing area (15) for reducing the weight of the bracket (100) is formed between the plurality of first reinforcing ribs (14).

5. A support as claimed in claim 4, characterised in that the first ribs (14) have a thickness of not more than 3mm and a spacing of not less than 7mm.

6. The bracket according to claim 1, characterized in that a first mounting hole (21) is formed in the end portion of the first fixing portion (2), a second mounting hole (31) is formed in the end portion of the second fixing portion (3), a third mounting hole (43) is formed in the support lug (42) of the third fixing portion (4), and the first mounting hole (21), the second mounting hole (31) and the third mounting hole (43) are used for being connected with the automobile air conditioner compressor (200) in an adapting mode.

7. The bracket according to claim 6, characterized in that the back of the first fixing part (2) is provided with second reinforcing ribs (22), the second reinforcing ribs (22) being provided in a plurality and staggered arrangement.

8. The bracket according to claim 7, wherein a harness plate (23) is provided on one side of the middle portion of the first fixing portion (2), and a harness hole (24) for passing a harness is provided in the harness plate (23).

9. An automotive air conditioner comprising an automotive air conditioner compressor and the bracket of any one of claims 1 to 8, the automotive air conditioner compressor being detachably fixedly connected to the bracket.

10. An automobile comprising the automobile air conditioner according to claim 9.