A type of hermetic compressor
By installing vibration damping components on the center of mass of the hermetic compressor and using the oil in the oil chamber to absorb vibration, the problem of uneven vibration of the compressor core is solved, thereby achieving compressor stability and noise reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANGSHI DONPER COMPRESSOR CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-26
AI Technical Summary
In fully enclosed reciprocating piston refrigeration compressors, there are problems such as large horizontal amplitude, uneven axial force, and high noise during the vibration of the compressor core.
A vibration damping component is installed at the center of mass of the movement and housed in an oil cavity between the bottom of the movement and the housing. Axial vibration is dispersed by the first and second elastic elements, reducing the transmission of horizontal vibration.
It effectively disperses the axial vibration of the compressor, reduces horizontal vibration, improves the operating stability of the compressor, and reduces noise.
Smart Images
Figure CN224282864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, specifically a hermetic compressor. Background Technology
[0002] In fully enclosed reciprocating piston refrigeration compressors, in order to reduce the transmission of compressor noise and vibration, the compressor core is usually connected to the suspension support structure on the housing through springs. However, during the vibration of the compressor core, the compressor has defects such as large amplitude in the horizontal direction, uneven axial force transmission, and high noise. Utility Model Content
[0003] This invention addresses the technical problems existing in the prior art by providing a closed compressor to disperse the axial unbalanced force of the compressor, reduce the mutual tension between elastic elements in the horizontal direction, thereby reducing the transmission of vibration in the compressor core and thus reducing compressor vibration.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a closed compressor, including a housing, a core, and a vibration damping component;
[0005] The mechanism and the vibration damping component are both installed inside the housing, and the vibration damping component is installed at the center of mass of the pump body in the mechanism.
[0006] As a further technical solution, the vibration damping component is housed in an oil cavity between the bottom of the movement and the housing.
[0007] As a further technical solution, the distance between the axial center of the first elastic element in the vibration damping assembly and the center of mass of the pump body in the mechanism is less than or equal to 20mm.
[0008] As a further technical solution, the vibration damping component also includes a baffle and a lower support vibration damping plate;
[0009] The baffle, the first elastic element, and the lower support damping plate are connected in sequence from top to bottom, and the upper part of the first elastic element extends out of the through hole on the baffle and abuts against the bottom of the movement; the end of the lower support damping plate opposite to the first elastic element abuts against the bottom wall of the housing.
[0010] The baffle is fixedly installed at the bottom of the movement.
[0011] As a further technical solution, the first elastic element is a compression spring.
[0012] As a further technical solution, the vibration damping component also includes a shoulder pad, and the shoulder pad is disposed between the bottom end face of the movement and the baffle.
[0013] As a further technical solution, the first elastic element is conical, and the top surface of the cone abuts against the lower end of the movement, and the bottom surface of the cone abuts against the lower support damping plate.
[0014] As a further technical solution, a second elastic element is provided on the cylinder base in the movement, and the second elastic element is connected to the inner wall of the housing through a suspension support structure.
[0015] The first elastic element is located below the second elastic element.
[0016] As a further technical solution, the second elastic element is provided in at least three parts, and is arranged at intervals along the circumference of the cylinder base.
[0017] As a further technical solution, the axis of the first elastic element is parallel to the axis of the second elastic element.
[0018] The beneficial effects of this utility model are: by setting a vibration damping component at the center of mass of the pump body in the compressor core to withstand the vertical vibration of the compressor core, the axial vibration of the compressor is dispersed, thereby reducing the horizontal vibration of the compressor and improving the stability of compressor operation.
[0019] In addition, the first elastic element is immersed in the oil chamber of the compressor, and the oil in the oil chamber absorbs part of the vibration, thereby further improving the stability of the compressor operation. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a closed compressor of this utility model after the outer casing has been removed;
[0021] Figure 2 This is a three-dimensional structural diagram of a closed compressor of this utility model after removing the outer casing, from another perspective.
[0022] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;
[0023] Figure 4 This is a schematic diagram of the overall structure of a hermetic compressor according to the present invention.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] Casing 1;
[0026] 2. Mechanism 2, pump body 21, motor 22, cylinder base 23;
[0027] Vibration damping component 3, baffle 31, first elastic element 32, lower support vibration damping plate 33, shaft shoulder pad 34;
[0028] Screw 4, second elastic element 5. Detailed Implementation
[0029] 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.
[0030] In the description of this application, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0031] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0032] Example 1
[0033] To improve compressor stability and reduce vibration during compressor operation, this embodiment provides a hermetic compressor, see below. Figures 1-4 It includes a housing 1, a movement 2, and a vibration damping assembly 3;
[0034] The core 2 and the vibration damping component 3 are both installed inside the housing 1, and the vibration damping component 3 is installed on the center of mass of the pump body 21 in the core 2 to disperse the axial vibration of the compressor. In order to improve the stability of the compressor, the axial distance between the center of the first elastic element 32 in the vibration damping component 3 and the center of mass of the pump body 21 in the core 2 is less than or equal to 20mm.
[0035] It should be noted that the core 2 refers to the entire unit where the pump body 21 and the motor 22 of the compressor are connected together. The position and connection relationship of the pump body 21 and the motor 22 are conventional in the art. For example, the hermetic compressor can be a fully hermetic reciprocating refrigeration compressor.
[0036] In the specific implementation process, the vibration damping component 3 is housed in the oil cavity between the bottom of the core 2 and the housing 1, and the oil in the oil cavity absorbs part of the vibration, thereby improving the stability of the compressor.
[0037] In the specific implementation process, see Figure 3 The vibration damping component 3 also includes a baffle 31 and a lower support vibration damping plate 33;
[0038] The baffle 31, the first elastic element 32, and the lower support damping plate 33 are connected sequentially from top to bottom, and the upper part of the first elastic element 32 extends out of the through hole on the baffle 31 and abuts against the bottom of the core 2; the end of the lower support damping plate 33 away from the first elastic element 32 abuts against the bottom wall of the housing 1, and the baffle 31 is fixedly installed at the bottom end of the core 2, so that during the operation of the compressor, the first elastic element 32 bears the axial vibration of the compressor, thereby improving the stability of the compressor.
[0039] For example, the first elastic element 32 is a compression spring, which absorbs inertial impact through its own elastic deformation to avoid collisions. In addition, it can also alleviate the vibration of related components inside the compressor. It should be noted that the first elastic element 32 is conical, and the top surface of the cone abuts against the lower end of the core 2, while the bottom surface of the cone abuts against the lower support damping plate 33. This makes the stiffness of the first elastic element 32 change nonlinearly with the amount of compression, so as to cover a wider range of vibration frequencies; and it can absorb vibration energy in stages, improve the resistance to instability, and extend its fatigue life.
[0040] For example, the baffle 31 and the movement 2 can be connected by screws 4.
[0041] To improve the connection life between the vibration damping assembly 3 and the movement 2, and to facilitate disassembly and assembly, the vibration damping assembly 3 further includes a shoulder pad 34, which is located between the bottom surface of the movement 2 and the baffle 31. It should be noted that the screws 4 used to install the baffle 31 and the movement 2 both pass through the shoulder pad 34.
[0042] In the specific implementation process, see Figure 1 , Figure 2The cylinder base 23 of the mechanism 2 is provided with a second elastic element 5, and the second elastic element 5 is connected to the inner wall of the housing 1 through a suspension support structure; the first elastic element 32 is located below the second elastic element 5. For example, the second elastic element 5 is a compression spring to withstand the axial vibration of the compressor. It should be noted that the straight-line distance between the second elastic element 5 and the outer edge of the gas base is less than or equal to 15mm.
[0043] For example, at least three second elastic elements 5 are provided and are spaced apart circumferentially along the cylinder base 23 to cooperate in bearing the axial vibration of the compressor during operation. The axis of the first elastic element 32 is parallel to the axis of the second elastic element 5, and the first elastic element 32 is located in the space enclosed by the plurality of second elastic elements 5.
[0044] In this embodiment, the first elastic element 32 and the second elastic element 5 jointly bear the axial vibration of the compressor, which reduces the horizontal vibration of the compressor and further improves the stability of the compressor.
[0045] During the operation of the compressor, the first elastic element 32 and the second elastic element 5 simultaneously bear the axial vibration of the compressor, which reduces the transmission of vibration of the core 2, reduces vibration, and thus reduces compressor vibration.
[0046] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0047] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A hermetic compressor, characterized in that, Includes housing (1), movement (2), and vibration damping components (3); The mechanism (2) and the vibration damping component (3) are both installed inside the housing (1), and the vibration damping component (3) is installed on the center of mass of the pump body (21) in the mechanism (2).
2. A hermetic compressor according to claim 1, characterized in that, The vibration damping component (3) is housed in an oil cavity between the bottom of the movement (2) and the housing (1).
3. A hermetic compressor according to claim 1, characterized in that, The axial distance between the center of the first elastic element (32) in the vibration damping component (3) and the center of mass of the pump body (21) in the mechanism (2) is less than or equal to 20 mm.
4. A hermetic compressor according to claim 3, characterized in that, The vibration damping assembly (3) also includes a baffle (31) and a lower support vibration damping plate (33); The baffle (31), the first elastic element (32), and the lower support damping plate (33) are connected in sequence from top to bottom, and the upper part of the first elastic element (32) extends out of the perforation on the baffle (31) and abuts against the bottom of the mechanism (2); the end of the lower support damping plate (33) away from the first elastic element (32) abuts against the bottom wall of the housing (1); The baffle (31) is fixedly installed at the bottom of the mechanism (2).
5. A hermetic compressor according to claim 4, characterized in that, The first elastic element (32) is a compression spring.
6. A hermetic compressor according to claim 4, characterized in that, The vibration damping component (3) also includes a shoulder pad (34), and the shoulder pad (34) is located between the bottom end face of the movement (2) and the baffle (31).
7. A hermetic compressor according to claim 5, characterized in that, The first elastic element (32) is conical, and the top surface of the cone abuts against the lower end of the mechanism (2), and the bottom surface of the cone abuts against the lower support damping plate (33).
8. A hermetic compressor according to claim 4, characterized in that, The cylinder base (23) in the mechanism (2) is provided with a second elastic element (5), and the second elastic element (5) is connected to the inner wall of the housing (1) through a suspension support structure. The first elastic element (32) is located below the second elastic element (5).
9. A hermetic compressor according to claim 8, characterized in that, The second elastic element (5) is provided in at least three parts and is arranged at intervals along the circumference of the cylinder base (23).
10. A hermetic compressor according to claim 8, characterized in that, The axis of the first elastic element (32) is parallel to the axis of the second elastic element (5).