Damping spring of linear compressor

Abstract

The damping spring of the linear compressor comprises an upper connecting base and lower connecting bases, conical bases are installed on the outer sides of the upper connecting base and the lower connecting bases, spring steel rings are installed between the two sets of conical bases, a spring body is arranged between the two sets of spring steel rings, an open hole is formed between the two sets of lower connecting bases, and the spring body is arranged in the open hole. Limiting cylinders are installed on the inner sides of the two sets of open holes, and guide rods are arranged in the two sets of limiting cylinders in a sleeved mode. According to the utility model, through limiting and guiding of the limiting cylinders mounted in the two groups of conical seats and the guide rods, when the spring main body is elastically compressed, the damping structure elastically stretches out and draws back in a vertical plane by utilizing the limiting and guiding of the two groups of limiting cylinders and the guide rods, so that position deviation of device parts connected with the upper connecting seat or the lower connecting seat is avoided; therefore, shaking and vibration of the damping structure are reduced, and the vibration relieving and absorbing effects of the damping springs are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of damping springs, in particular to a damping spring for a linear compressor. Background Art

[0002] A linear compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas and is the heart of a refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it by driving a piston through the operation of a motor, and then discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle. When the compressor is in use, it will generate relatively large vibrations, so damping springs are needed to damp the compressor to prevent the equipment from being damaged due to vibrations.

[0003] The authorized announcement number CN221170526U discloses a compressor damping spring with multi-stage damping. This device mainly makes the device, when in use, relieve the vibration pressure by the deformation stress of the spring body when the spring body is subjected to vibration pressure through the mutual cooperation between the spring body, elastic rings, connecting rods and rod sleeves. And when the spring body deforms, the two rod sleeves can approach each other, and the two elastic rings can be squeezed through the connection of the connecting rods. Through the elastic performance of the elastic rings, the vibration force can be further relieved, realizing multi-stage damping and improving the damping effect of the device. However, when the device is actually in use, there are still the following defects:

[0004] The above patent mainly uses the elastic performance of multi-stage damping to relieve the vibration force received by the compressor. When the compressor generates impact force, due to the different directions and magnitudes of the force, the fuselage may shake, which may lead to a large deviation of the damping structure of the spring, thereby affecting the potential energy of the spring's elastic force relief, reducing the absorption of the impact force by the damping structure, and when the spring is compressed to the maximum position, the damping structure will be impacted. With the different magnitudes of the impact force, the wear degree of the damping spring will increase, and the service life of the damping spring will be reduced. Content of the Utility Model

[0005] The purpose of the utility model is to provide a damping spring for a linear compressor to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solution: A shock-absorbing spring for a linear compressor, comprising an upper connecting seat and a lower connecting seat. Conical seats are installed on the outer sides of the upper connecting seat and the lower connecting seat. A spring steel ring is installed between the two conical seats. A spring body is provided between the two spring steel rings. Openings are formed between the two lower connecting seats. Limiting cylinders are installed inside the two openings. Guide rods are sleeved inside the two limiting cylinders. Tapered plates that are slidably matched inside the limiting cylinders are provided at the top and bottom of the guide rods. Tapered grooves are provided inside the two lower connecting seats, and the tapered grooves are in mutual fit with the tapered plates.

[0007] Preferably, the two spring steel rings are arranged in an annular structure at the edges of the outer sides of the two conical seats, and the spring body is connected to the two spring steel rings, facilitating the absorption and mitigation of the vibration of the compressor by the connection between the spring body and the two spring steel rings.

[0008] Preferably, cavities are formed inside the two conical seats. The two tapered grooves are arranged inside the cavities. Through holes that are slidably matched with the guide rods are formed between the two limiting cylinders. The two limiting cylinders slide and displace on the outer side of the guide rods. By arranging the structure inside the cavity, not only the overall volume of the shock-absorbing spring is reduced, but also vertical limitation of the spring shock absorption is achieved.

[0009] Preferably, rubber pads are provided on the outer sides of the two tapered plates, and buffer pads are provided on the outer sides of the two tapered grooves, improving the anti-slip property and shock absorption rate of the structure, so as to buffer the vibration received by the shock-absorbing spring and limit it.

[0010] Preferably, the two limiting cylinders are installed inside the openings and extend into the inside of the conical seats. Anti-slip patterns are provided on the outer sides of the two limiting cylinders, increasing the friction force of the contact between the two limiting cylinders and avoiding dislocation during contact.

[0011] The shock-absorbing spring for a linear compressor proposed by the present utility model has at least the following beneficial effects:

[0012] Through the limiting and guiding of the limiting cylinders and guide rods installed inside the two conical seats, when the spring body is elastically compressed, by the limiting and guiding of the two limiting cylinders and guide rods, the shock-absorbing structure performs elastic expansion and contraction in the vertical plane, avoiding the position deviation of the device components connected to the upper connecting seat or the lower connecting seat. Furthermore, the swaying and vibration of the shock-absorbing structure are reduced, improving the shock mitigation and absorption effect of the shock-absorbing spring. And by the setting and fit of the two tapered plates and tapered grooves, the spring structure compressed to the limit is buffered and absorbed, avoiding large friction and damage to the spring body. This structure not only improves the stability of the expansion and contraction of the shock-absorbing structure through the guiding and limiting of the guide rod and tapered plate, but also reduces the wear degree of the spring compression, extending the service life of the shock-absorbing spring. Description of the Drawings

[0013] Figure 1 is the perspective view of the present utility model;

[0014] Figure 2 is the front view of the present utility model;

[0015] Figure 3 is the front view sectional view of the present utility model.

[0016] In the figure: 1, upper connecting seat; 2, spring body; 3, lower connecting seat; 4, conical seat; 5, spring steel ring; 6, limiting cylinder; 7, guide rod; 8, conical plate; 9, conical groove; 10, opening. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3 , an embodiment provided by the present utility model: a shock-absorbing spring of a linear compressor, including an upper connecting seat 1 and a lower connecting seat 3. Conical seats 4 are installed on the outer sides of the upper connecting seat 1 and the lower connecting seat 3. A spring steel ring 5 is installed between the two conical seats 4. A spring body 2 is provided between the two spring steel rings 5. Openings 10 are formed between the two lower connecting seats 3. Limiting cylinders 6 are installed inside the two openings 10. Guide rods 7 are sleeved inside the two limiting cylinders 6. Conical plates 8 that are slidably matched inside the limiting cylinders 6 are provided at the top and bottom of the guide rods 7. Conical grooves 9 are provided inside the two lower connecting seats 3, and the conical grooves 9 are in mutual fit with the conical plates 8;

[0019] The two spring steel rings 5 are arranged in an annular structure at the edges outside the two conical seats 4. The spring body 2 is connected to the two spring steel rings 5, which is convenient for absorbing and alleviating the vibration of the compressor by using the connection between the spring body 2 and the two spring steel rings 5. The two limiting cylinders 6 are installed inside the openings 10 and extend into the conical seats 4. Anti-slip patterns are provided on the outer sides of the two limiting cylinders 6 to increase the friction force of the contact of the two limiting cylinders 6 and avoid dislocation during contact.

[0020] Embodiment 1, as Figures 1-3As shown in the figure, cavities are provided inside the two sets of conical seats 4. Two sets of conical grooves 9 are arranged on the inner side of the cavities. A through hole that is slidably matched with the guide rod 7 is provided between the two sets of limiting cylinders 6. The two sets of limiting cylinders 6 slide on the outer side of the guide rod 7. By providing the cavity inside the conical seat 4, the limiting cylinder 6 and the conical groove 9 can be arranged inside the cavity, and the through hole structure in which the limiting cylinder 6 and the guide rod 7 are sleeved and connected is used, so as to use the guide rod 7 for limiting and guiding in the vertical plane, and the shock-absorbing spring drives the limiting cylinder 6 to telescopically slide on the outer side of the guide rod 7 when compressed.

[0021] Embodiment 2, as Figures 1-3 shown, rubber pads are provided on the outer sides of the two sets of conical plates 8, and buffer pads are provided on the outer sides of the two sets of conical grooves 9. By the rubber pads on the outer sides of the conical plates 8 contacting the buffer pads on the outer sides of the conical grooves 9, not only the shock force generated by the contact between the conical plates 8 and the conical grooves 9 is absorbed and alleviated, but also a stable clamping of the conical structure is formed, so that the shock-absorbing spring maintains stable telescopic movement in the vertical plane, and the stability and anti-displacement effect during the shock absorption of the compressor are improved.

[0022] Working principle: In the shock-absorbing spring of this linear compressor;

[0023] When the linear compressor generates vibrations during use, the vibrations of the compressor are absorbed by using the shock-absorbing spring structures arranged in multiple groups. Through the connection of the upper connecting seat 1, the lower connecting seat 3 and the conical seat 4, the shock force is elastically telescoped by the spring body 2 connected between the two sets of conical seats 4. Thus, the impact force is alleviated under the elastic action of the spring by using the elastic potential energy of the spring. During this period, through the arrangement of the two sets of limiting cylinders 6 and the guide rod 7, when the conical seat 4 is elastically compressed, it drives the limiting cylinder 6 to synchronously expand and contract on the outer side of the guide rod 7. When the spring structure reaches the limit position, the two sets of conical plates 8 and the conical grooves 9 are used for vertical limiting and absorption of the spring structure, avoiding the shaking of the shock-absorbing spring and resulting in structural misalignment, and improving the stability of the linear compressor during shock absorption.

[0024] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A shock-absorbing spring for a linear compressor, comprising an upper connecting seat (1) and a lower connecting seat (3), characterized in that: Conical seats (4) are installed on the outer sides of the upper connecting seat (1) and the lower connecting seat (3). A spring steel ring (5) is installed between the two groups of conical seats (4). A spring body (2) is arranged between the two groups of spring steel rings (5). An opening (10) is formed between the two groups of lower connecting seats (3). A limiting cylinder (6) is installed on the inner sides of the two groups of openings (10). A guide rod (7) is sleeved inside the two groups of limiting cylinders (6). Conical plates (8) that are slidably matched inside the limiting cylinders (6) are provided at the top and bottom of the guide rod (7). Conical grooves (9) are provided inside the two groups of lower connecting seats (3), and the conical grooves (9) are in mutual fit with the conical plates (8).

2. The shock-absorbing spring of the linear compressor according to claim 1, characterized in that: The two groups of spring steel rings (5) are arranged in an annular structure at the edges on the outer sides of the two groups of conical seats (4), and the spring body (2) is connected to the two groups of spring steel rings (5).

3. The shock-absorbing spring of the linear compressor according to claim 1, characterized in that: Cavities are formed inside the two groups of conical seats (4). The two groups of conical grooves (9) are arranged on the inner sides of the cavities. Through holes that are slidably matched with the guide rod (7) are formed between the two groups of limiting cylinders (6). The two groups of limiting cylinders (6) slide and displace on the outer sides of the guide rod (7).

4. The shock-absorbing spring of the linear compressor according to claim 1, characterized in that: Rubber pads are provided on the outer sides of the two groups of conical plates (8), and buffer pads are provided on the outer sides of the two groups of conical grooves (9).

5. The shock-absorbing spring of the linear compressor according to claim 1, wherein: The two groups of limiting cylinders (6) are installed on the inner sides of the openings (10) and extend into the interiors of the conical seats (4). Anti-slip patterns are provided on the outer sides of the two groups of limiting cylinders (6).

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