Damping base of compressor and compressor

Abstract

The utility model relates to compressor vibration reduction technical field discloses a kind of vibration reduction base of compressor and compressor.Vibration reduction base of compressor, including top plate, side plate and bottom plate, side plate is equipped with multiple, top plate, side plate and bottom plate are sequentially fixed by from top to bottom and enclosed to form a frame structure, and bottom plate is equipped with reinforcing structure.The utility model prolongs the transmission path of resultant force effect on the basis of basically not changing the occupied space of original vibration reduction base, realizes the multiple reduction of vibration in transmission process, so that vibration energy is fully dissipated, and the damping effect is improved;And by stratified damping, the load of single damping layer is reduced, material aging and fatigue are delayed, and the service life of the vibration reduction base is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of compressor vibration reduction technology, and in particular to a compressor vibration reduction base and a compressor. Background Technology

[0002] A compressor is a device that compresses gas into high-pressure gas and is widely used in heat pumps, air conditioners, and other equipment. During operation, the compressor generates high-frequency vibrations, producing noise. Therefore, during installation, a compressor base is typically used to secure the compressor to the equipment housing. The compressor base consists of a base body and vibration-damping feet. The base body, combined with the vibration-damping feet, reduces the noise transmitted to the housing due to vibration. However, existing compressor bases, limited by installation space, cannot provide a sufficiently long vibration-damping path, resulting in inadequate dissipation of vibration energy and poor vibration reduction performance. Utility Model Content

[0003] The first technical problem solved by this utility model is to provide a vibration damping base for a compressor, which extends the vibration damping path of the existing compressor base and effectively improves the vibration damping effect.

[0004] The second technical problem solved by this invention is to provide a compressor that effectively improves the vibration reduction effect of existing compressors.

[0005] The first technical problem mentioned above is solved by the following technical solution:

[0006] A vibration damping base for a compressor includes a top plate, side plates, and a bottom plate. Multiple side plates are provided. The top plate, side plates, and bottom plate are sequentially fixed from top to bottom and enclose a frame structure. The bottom plate is provided with a reinforcing structure.

[0007] Compared with the prior art, the vibration damping base of the compressor described in this utility model has the following beneficial effects: When the vibration damping base is installed with the compressor, the vibration generated by the compressor during operation due to factors such as rotational inertia, dynamic imbalance force, and mass is transmitted downwards sequentially through the top plate, side plate, and bottom plate of the vibration damping base. The top plate bears the main resultant force effect and resists and reduces the vibration transmitted from the compressor for the first time through its own static stiffness. After reduction, the resultant force effect continues to be transmitted downwards through the side plate, which itself can reduce the vibration for the second time. By setting the bottom plate and setting a reinforcing structure on the bottom plate, the natural frequency of the vibration damping base is changed. The vibration is finally reduced for the third time through the bottom plate and the reinforcing structure set on the bottom plate. Thus, without changing the space occupied by the original vibration damping base, the transmission path of the resultant force effect is extended, and multiple reductions of vibration are achieved during the transmission process, so that the vibration energy is fully dissipated and the vibration damping effect is improved. Moreover, through layered vibration damping, the load on a single vibration damping layer is reduced, material aging and fatigue are delayed, and the service life of the vibration damping base is extended. Meanwhile, the frame structure formed by the top plate, side plates, and bottom plate, with multiple side plates facing different directions, effectively cancels out the combined force transmitted from the top plate to the multiple side plates on the bottom plate due to the different orientations of the side plates, further improving the shock absorption effect.

[0008] In one embodiment, the reinforcing structure includes a plurality of first protrusions, which are evenly distributed on the side of the base plate opposite to the top plate.

[0009] In one embodiment, the plurality of first protrusions include a first elongated molding and two second elongated moldings. The first elongated molding is disposed on the centerline of one side of the base plate, and the two second elongated moldings are symmetrically distributed on both sides of the first elongated molding, and the length of the first elongated molding is greater than the length of the second elongated molding.

[0010] In one embodiment, one end of the first elongated molding and one end of the second elongated molding are flush.

[0011] In one embodiment, the vibration damping base further includes a buffer structure, which is fixedly installed on the top plate and protrudes from the side of the bottom plate opposite to the top plate.

[0012] In one embodiment, the plurality of side plates are integrally formed with the top plate, and the bottom plate is welded and fixed to the side plates.

[0013] In one embodiment, the side plate is provided with at least one second protrusion.

[0014] In one embodiment, the projection of the second protrusion onto the corresponding side plate is rectangular, and the aspect ratio of the rectangle is in the range of 2:1 to 4:1.

[0015] In one embodiment, the top plate is provided with a plurality of third protrusions, which extend along the edge of the top plate.

[0016] In one embodiment, a plurality of the third protrusions are provided on the side of the top plate opposite to the bottom plate.

[0017] The second technical problem mentioned above is solved by the following technical solution:

[0018] A compressor includes a vibration damping base and a compressor body; the bottom of the compressor body is welded and fixed to the top plate.

[0019] Compared with the prior art, the compressor described in this utility model has the following advantages: due to the design of the vibration damping base plate and the reinforcing structure on the base plate, it can not only improve the mode of the entire support and provide better support and stability, but also enhance the ability of the vibration damping base to resist displacement deformation, reduce the displacement and shaking of the compressor during operation, improve the vibration damping effect of the compressor, and improve the overall reliability of the system. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a partially exploded view of a vibration damping base for a compressor according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the compressor's vibration damping base;

[0023] Figure 3 This is a schematic diagram of the compressor according to an embodiment of the present utility model;

[0024] Figure 4 A schematic diagram of an existing compressor;

[0025] Figure 5 This is a schematic diagram comparing the dynamic stiffness of existing vibration damping bases and the vibration damping base provided in this embodiment at different vibration frequencies.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Top plate; 2. Side plate; 3. Bottom plate; 4. Reinforcing structure; 401. First strip molding; 402. Second strip molding; 5. Second protrusion; 6. Third protrusion; 7. Buffer structure; 8. Protective plate; 9. Compressor body. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Existing compressor vibration damping bases are often designed for specific frequency ranges, making it difficult to address the isolation requirements of vibrations at different frequencies, resulting in poor vibration damping performance under certain operating conditions. Furthermore, due to limited space at the bottom of the compressor, the design of the vibration damping base is constrained by installation space, failing to provide a sufficiently long damping path or support strength, further impacting vibration damping performance. Under long-term vibration and load, the vibration damping base may also develop fatigue cracks or structural damage, affecting its service life and safety.

[0033] The following is combined Figures 1 to 3The following describes embodiments of the present invention.

[0034] According to an embodiment of the present invention, a vibration damping base for a compressor is provided, comprising a top plate 1, a side plate 2 and a bottom plate 3. Multiple side plates 2 are provided. The top plate 1, side plates 2 and bottom plate 3 are sequentially fixed from top to bottom and enclosed to form a frame structure. A reinforcing structure 4 is provided on the bottom plate 3.

[0035] The top plate 1 and side plate 2 are integrally formed by die casting, and the bottom plate 3 is integrally formed by die casting. The side plate 2 is set perpendicular to both the top plate 1 and the bottom plate 3, resulting in a lightweight overall frame structure for the vibration damping base. Compared to simply extending the length of the side plate 2 downwards, this embodiment sets the top plate 1 and bottom plate 3 correspondingly, and provides a reinforcing structure 4 on the bottom plate 3, minimizing the volume of the vibration damping base to the greatest extent possible.

[0036] In this embodiment, the vibration damping base is installed at the bottom of the compressor as an example. Of course, the vibration damping base can also be installed at the bottom of structures such as motors that generate large vibrations during operation and require vibration damping. No specific restrictions are made here.

[0037] After the vibration damping base is installed with the compressor, the vibration generated by the compressor during operation due to factors such as rotational inertia, dynamic imbalance force, and mass is transmitted downwards sequentially through the top plate 1, side plate 2, and bottom plate 3 of the vibration damping base. The top plate 1 bears the main resultant force effect and resists and reduces the vibration transmitted from the compressor through its own static stiffness. After reduction, the resultant force effect continues to be transmitted downwards through the side plate 2, which itself can reduce the vibration a second time. By setting the bottom plate and setting a reinforcing structure on the bottom plate, the natural frequency of the vibration damping base is changed. Finally, the vibration is reduced a third time through the bottom plate 3 and the reinforcing structure 4 set on the bottom plate 3. Thus, without changing the original space occupied by the vibration damping base, the transmission path of the resultant force effect is extended, and multiple reductions in vibration during transmission are achieved, so that vibration energy is fully dissipated and the vibration damping effect is improved. Moreover, through layered vibration damping, the load on a single damping layer is reduced, material aging and fatigue are delayed, and the service life of the vibration damping base is extended. Meanwhile, the top plate 1, side plates 2, and bottom plate 3 enclose a frame structure. Since the multiple side plates 2 are located in different orientations, the combined force transmitted from the top plate 1 to the multiple side plates 2 is effectively offset on the bottom plate 3 due to the different orientations of the side plates 2, further improving the shock absorption effect.

[0038] The reinforcing structure 4 is formed by stamping the base plate 3 in a direction away from or close to the compressor during processing. Compared with the solution of increasing the thickness of the base plate 3 to improve the vibration reduction effect, the solution in this embodiment is lower in cost and has a better vibration reduction effect.

[0039] In one embodiment, the reinforcing structure 4 includes a plurality of first protrusions, which are evenly distributed on the side of the bottom plate 3 facing away from the top plate 1.

[0040] Multiple first protrusions can be provided on the base plate 3. The multiple first protrusions can simultaneously decompose the vibration of the compressor from different positions. In this embodiment, the first protrusion is stamped in the direction away from the compressor body 9, that is, it is provided on the side of the base plate 3 that is away from the top plate 1, which can effectively avoid interference with the installation of the compressor body 9.

[0041] In other embodiments, the reinforcing structure 4 may also be a plurality of first recesses, or a combination of first protrusions and first recesses may be provided simultaneously, as long as the force is evenly distributed and the overall rigidity of the base plate 3 is taken into account. For example, a groove is cut into the base plate 3 to form the first recesses. A plurality of first protrusions are evenly distributed on the base plate 3, which maximizes the uniformity of force distribution while keeping costs low, thereby ensuring the overall rigidity and service life of the base plate 3.

[0042] In one embodiment, the plurality of first protrusions include a first elongated molding 401 and two second elongated moldings 402. The first elongated molding 401 is disposed on the centerline of one of the edges of the base plate 3, and the two second elongated moldings 402 are symmetrically distributed on both sides of the first elongated molding 401, and the length of the first elongated molding 401 is greater than the length of the second elongated molding 402.

[0043] The first protrusions are all elongated strips, which facilitates processing and shaping. A first elongated molding 401 is provided in the center of the base plate 3, and two second elongated moldings 402 are symmetrically provided on both sides. This makes reasonable use of the space of the base plate 3 while achieving uniform force distribution. Of course, the first protrusions can also be circular, square, etc., and no specific restrictions are made here.

[0044] In one embodiment, one end of the first strip molding 401 and one end of the second strip molding 402 are flush.

[0045] like Figure 1 As shown, a first long strip molding 401 and two second long strip moldings 402 form a "mountain" shape on the base plate 3, with the middle being higher and the sides lower. This structure can effectively disperse stress, improve overall strength and rigidity, and is suitable for high-load scenarios. The setting of the first protrusion enhances the bending and torsional resistance, making it suitable for complex stress environments. The symmetrical structure improves overall stability and reduces deformation and vibration.

[0046] In an embodiment not shown, the multiple first protrusions may also be distributed in a triangular or T-shaped manner. However, these distribution patterns result in uneven stress distribution on the base plate 3 when subjected to vibration, leading to poor vibration damping. The base plate 3 may also be square, rectangular, circular, etc., without specific limitations.

[0047] In one embodiment, multiple side plates 2 are integrally formed with the top plate 1, and the bottom plate 3 is welded and fixed to the side plates 2.

[0048] Multiple side plates 2 are integrally formed with the top plate 1, and the bottom plate 3 is welded and fixed to the side plates 2, ensuring the strength and reliability of the entire vibration damping base.

[0049] In one embodiment, the side plate 2 is provided with at least one second protrusion 5.

[0050] The second protrusion 5 further enhances the distribution of force on the side plate 2.

[0051] The second protrusion 5 is formed by stamping the side plate 2 in a direction away from the center of the vibration damping base during processing. One second protrusion can be provided on the side plate 2. Of course, the number of second protrusions can also be multiple. There is no specific limitation here. It is preferred to provide one second protrusion.

[0052] In one embodiment, the projection of the second protrusion 5 onto the corresponding side plate 2 is a rectangle, and the aspect ratio of the rectangle is in the range of 2:1 to 4:1.

[0053] The above design achieves maximum uniform force distribution while reducing costs and maintaining overall strength. Side plate 2 is typically rectangular with a width of 8mm-10mm, and has a second protrusion at its center. This second protrusion, with its aforementioned aspect ratio, effectively attenuates local displacement and vibration. Of course, the second protrusion can also be multiple small rectangles spaced apart, or it can be elliptical, etc., without specific limitations.

[0054] In one embodiment, the top plate 1 is provided with a plurality of third protrusions 6, which extend along the edge of the top plate 1.

[0055] The third protrusion 6 is formed by stamping the top plate 1 in the direction away from the compressor during processing. Multiple third protrusions can be provided on the top plate 1, as long as the force is evenly distributed and the overall rigidity of the top plate 1 is taken into account. The third protrusion 6 can be elongated or curved, and there is no specific limitation here. A third protrusion 6 is provided at each edge of the top plate 1, which can attenuate the vibration force from different directions simultaneously at the first time, resulting in a better vibration reduction effect.

[0056] The third protrusion allows it to cut the top plate 1, release stress concentration, strengthen local modes, and decompose the compressor as the compressor's vibration is transmitted to the top plate 1, while ensuring the compatibility between the compressor and the vibration damping base.

[0057] In one embodiment, a plurality of third protrusions 6 are provided on the side of the top plate 1 opposite to the bottom plate 3.

[0058] The above-mentioned design provides sufficient space for the installation of the compressor body, which can effectively avoid interference with the installation of the compressor body 9.

[0059] Since the top plate 1, the side plate 2 and the bottom plate 3 are respectively provided with a first protrusion, a second protrusion 5 and a third protrusion 6, the vibration generated by the compressor can be attenuated and dispersed in sequence through the first protrusion, the second protrusion 5 and the third protrusion 6, and the vibration reduction effect is good.

[0060] In one embodiment, the vibration damping base further includes a buffer structure 7, which is fixedly installed on the top plate 1 and protrudes from the side of the bottom plate 3 facing away from the top plate 1. Thus, the vibration generated by the operation of the compressor body 9 is transmitted downward through the top plate, side plate and bottom plate of the vibration damping base in sequence, and is further absorbed by the buffer structure 7, thereby reducing the transmission of the vibration generated by the operation of the compressor body 9 to the housing of the whole machine.

[0061] In one embodiment, the base plate 3 is also provided with a clearance space for the buffer structure 7. The buffer structure 7 is provided with a slot, and the top plate is provided with an opening. The buffer structure 7 is fixed to the top plate 1 by the cooperation of the slot and the opening.

[0062] The three corners of the base plate 3 are cut off, with the size and shape matching the buffer structure 7, thus creating clearance space for the buffer structure. In this embodiment, the buffer structure 7 is a cylindrical rubber pad; therefore, a sector is cut off from each of the three corners of the base plate 3. The arc of the sector is slightly larger than the outer circumference arc of the cylindrical rubber pad to facilitate assembly and avoid interference. The slot is inserted into the opening to fix the rubber pad to the top plate.

[0063] During the transmission of vibration from the top plate 1 through the side plate 2 to the bottom plate 3, the rubber pad absorbs the vibration energy through deformation. The internal friction of the rubber pad converts the vibration energy into heat energy, thereby weakening the vibration energy. The rubber pad forms an elastic isolation layer between the compressor and the mounting platform to prevent the vibration energy from being further transmitted to other structures. The vibration generated by the compressor is effectively attenuated through the combined action of the first protrusion, the second protrusion 5, the third protrusion 6, and the rubber pad, and can adapt to vibrations of different frequencies.

[0064] In one embodiment not shown, the buffer structure 7 may also be a compression spring, etc., without specific limitations.

[0065] In one embodiment, the side plate 2 is further provided with guard plates 8 at both ends along the length direction, and the guard plates 8 extend to the outer periphery of the buffer structure 7.

[0066] The guard plate 8 is integrally stamped with the side plate 2, and forms a certain angle with the side plate 2. The two guard plates 8 of two adjacent side plates 2 are respectively clamped on the outer periphery of the corresponding buffer structure 7, which plays a certain role in restricting the position of the buffer structure 7 and preventing it from deforming too much when subjected to excessive force. At the same time, it also plays a certain supporting role, making the entire vibration damping base stronger.

[0067] According to an embodiment of the present invention, another aspect provides a compressor, including a vibration damping base and a compressor body 9; the bottom of the compressor body 9 is welded and fixed to the top plate 1.

[0068] like Figure 3 As shown, the compressor body 9 is usually a cylinder. The outer shell of the cylinder is fixed to the top plate 1 of the vibration damping base by welding and is located at the center of the top plate 1, so that the bottom of the compressor body 9 is basically covered on the third protrusion, thereby reducing the vibration energy in time.

[0069] Due to the multi-layered reinforced structure of the vibration-damping base, not only is the modal performance of the entire support improved, providing better support and stability, but the support's ability to resist displacement deformation is also strengthened, reducing compressor displacement and shaking during operation and improving the overall reliability of the system. When this compressor is used in a heat pump heating system, it can improve the NVH smoothness of the heat pump heating system, attenuate compressor excitation noise, and optimize broadband noise. See details... Figure 5 The horizontal axis represents frequency in Hz, and the vertical axis represents dynamic stiffness in N / ms, indicating the ability to resist deformation. The red line represents the existing vibration damping base (such as...). Figure 4 The figure shows the dynamic stiffness versus frequency curve (shown), with the green line representing the dynamic stiffness of the vibration damping base in this embodiment. As can be seen from the figure, the dynamic stiffness of existing vibration damping bases tends to be 0 at 80Hz, indicating that the attenuation effect of existing vibration damping bases on vibrations at this frequency is almost zero. In contrast, the vibration damping base of this embodiment exhibits good resistance to deformation for vibrations with frequencies from 0 to 550Hz, meaning it has good vibration damping capability. Especially at 80Hz, the dynamic stiffness of the vibration damping base of this embodiment is normal, indicating that the problem of poor vibration damping effect at this frequency has been effectively improved.

[0070] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0071] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vibration damping base for a compressor, characterized in that: It includes a top plate (1), side plates (2) and a bottom plate (3). There are multiple side plates (2). The top plate (1), side plates (2) and bottom plate (3) are sequentially fixed and enclosed from top to bottom to form a frame structure. The bottom plate (3) is provided with a reinforcing structure (4).

2. The vibration damping base of the compressor according to claim 1, characterized in that: The reinforcing structure (4) includes a plurality of first protrusions, which are evenly distributed on the side of the bottom plate (3) facing away from the top plate (1).

3. The vibration damping base of the compressor according to claim 2, characterized in that, The plurality of first protrusions include a first elongated molding (401) and two second elongated moldings (402). The first elongated molding (401) is located on the center line of one side of the base plate (3). The two second elongated moldings (402) are symmetrically distributed on both sides of the first elongated molding (401), and the length of the first elongated molding (401) is greater than the length of the second elongated moldings (402).

4. The vibration damping base of the compressor according to claim 3, characterized in that, One end of the first elongated molding (401) and one end of the second elongated molding (402) are flush.

5. The vibration damping base of the compressor according to any one of claims 1 to 4, characterized in that, It also includes a buffer structure (7), which is fixedly installed on the top plate (1) and protrudes from the side of the bottom plate (3) facing away from the top plate (1).

6. The vibration damping base of the compressor according to any one of claims 1 to 4, characterized in that, The multiple side plates (2) are integrally formed with the top plate (1), and the bottom plate (3) is welded and fixed to the side plates (2).

7. The vibration damping base of the compressor according to any one of claims 1 to 4, characterized in that: The side plate (2) is provided with at least one second protrusion (5).

8. The vibration damping base of the compressor according to claim 7, characterized in that: The projection of the second protrusion (5) onto the corresponding side plate (2) is a rectangle, and the aspect ratio of the rectangle is in the range of 2:1-4:

1.

9. The vibration damping base of the compressor according to any one of claims 1 to 4, characterized in that: The top plate (1) is provided with a plurality of third protrusions (6), which extend along the edge of the top plate (1).

10. The vibration damping base of the compressor according to claim 9, characterized in that: Multiple third protrusions (6) are provided on the side of the top plate (1) opposite to the bottom plate (3).

11. A compressor, characterized in that, The compressor includes a vibration damping base and a compressor body (9) of any one of claims 1 to 10; the bottom of the compressor body (9) is welded and fixed to the top plate (1).

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