Compressor and refrigeration apparatus

Abstract

The application provides a compressor and a refrigeration device, the compressor comprising a shell, a pump body and a limiting block, the pump body being arranged in the shell, the limiting block being arranged between the pump body and the shell, and the limiting block being made of plastic.The limiting block comprises a mounting column, a supporting plate and a limiting plate, and the mounting column is connected to the pump body, and the supporting plate is connected to the mounting column.In this way, the application solves the problem of large noise of the compressor in the prior art.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more particularly to a compressor and a refrigeration device including said compressor. Background Technology

[0002] The biggest change in the usage scenario of vehicle compressors compared to household refrigeration compressors is the shift from stationary to mobile operation. This significantly increases the frequency of the compressor pump body colliding with the casing. Traditional metal limiters frequently collide, causing metal fragments to flake off and enter the moving parts with the compressor's oil circuit, leading to compressor malfunctions such as wear and jamming. This is often accompanied by the unpleasant sound of metal impacts. In other words, existing compressor technology suffers from significant noise issues. Summary of the Invention

[0003] The main objective of this invention is to provide a compressor and a refrigeration device including the compressor, aiming to solve the problem of excessive noise in existing compressors.

[0004] To address the aforementioned problems, this invention proposes a compressor comprising a housing, a pump body, and a limiting block. The pump body is disposed within the housing; the limiting block is disposed between the pump body and the housing, and the limiting block comprises a mounting post, a support plate, and a limiting plate. The mounting post is connected to the pump body; the support plate is connected to the mounting post; the limiting block is made of plastic.

[0005] In an optional embodiment, the limiting plate includes a first limiting plate, which is formed by extending downward from the outer periphery of the support plate, and the first limiting plate is disposed between the pump body and the housing.

[0006] In one optional embodiment, the first limiting plate has an inwardly facing first limiting surface and an outwardly facing second limiting surface, the first limiting surface being used to cooperate with the pump body, and the second limiting surface being used to cooperate with the housing.

[0007] In one alternative embodiment, the mounting column, the support plate, and the limiting plate are injection molded as a single unit.

[0008] In an optional embodiment, the limiting block includes two first limiting plates, which are symmetrically arranged along the central axis of the support plate.

[0009] In one alternative embodiment, the first limiting surface is inclined outward from top to bottom.

[0010] In an optional embodiment, the limiting block further includes a second limiting plate, which is formed on the outer periphery of the support plate and connects two first limiting plates. The second limiting plate has a plurality of limiting grooves, which engage with the pump body.

[0011] In one optional embodiment, each of the limiting grooves includes multiple inner wall surfaces with different curvatures, and the number of the inner wall surfaces is not less than 2 and not more than 8.

[0012] In one alternative embodiment, the outer periphery of the support plate extends upward to form a third limiting plate.

[0013] In one alternative embodiment, the mounting post is provided in a tubular structure, and the outer surface of the mounting post is interference-fitted with the pump body.

[0014] The present invention also proposes a refrigeration device, which includes the compressor described above.

[0015] The technical solution of the present invention provides a compressor and a refrigeration device including the compressor. Specifically, the limiting block of the compressor is made of plastic. Compared with metal parts, the limiting block made of plastic will not produce the unpleasant sound of metal impact. Thus, the present invention solves the noise problem existing in the compressor and refrigeration device in the prior art. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the compressor of the present invention;

[0018] Figure 2 for Figure 1 A sectional view of the compressor section structure;

[0019] Figure 3 This is a schematic diagram of the structure of a limiting block according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A structural schematic diagram of the middle limiting block from another perspective;

[0021] Figure 5 for Figure 3 Top view of the middle limit block;

[0022] Figure 6 for Figure 3 A bottom view of the middle limit block.

[0023] Explanation of icon numbers:

[0024]

[0025]

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] In existing technologies, limiting blocks are often made of metal. However, in applications requiring mobility, such as the compressor of a car refrigerator, the frequency of the pump body impacting the housing within the compressor increases significantly due to the vehicle's movement. The traditional solution is to add a metal limiting block between the pump body and the housing. However, in applications with high impact frequencies, frequent metal impacts can easily lead to metal fragments falling off. These fragments can easily enter the moving parts through the compressor's oil passages, causing compressor jamming, wear, and other malfunctions. Furthermore, since the compressor housing and pump body are generally made of metal, the impact between them and the metal limiting block produces a metallic clanging sound, which is unpleasant and not easily accepted by users.

[0031] Please see Figure 1 , Figure 2 This invention proposes a compressor 100, which includes a housing, a pump body 20, and a limiting block 10. The pump body 20 is disposed within the housing; the limiting block 10 is disposed between the pump body 20 and the housing, and the limiting block 10 is made of plastic. This invention proposes a limiting block 10 made of plastic, as the sound of plastic colliding with metal is more acceptable to users than the sound of metal colliding with metal. Based on the previous optional embodiment, the limiting block 10 includes a mounting post 11, a support plate 12, and a limiting plate 13. The mounting post 11 is connected to the pump body 20, and the support plate 12 is connected to the mounting post 11.

[0032] Based on the previous embodiment, the limiting block 10 is installed at the tail of the pump body 20. Further, the limiting block 10 is installed on the support foot 22 at the tail of the pump body 20. The compressor 100 includes two limiting blocks 10, which are symmetrically arranged along the pump body 20 and respectively installed on the two support feet 22 at the tail of the pump body 20.

[0033] In one embodiment, the limiting block 10 is made of impact-resistant plastic, as impact is one of the most significant stresses that plastics experience during use. The limiting block 10, positioned between the housing and the pump body 20, is frequently subjected to impacts from the pump body 20 or the housing during the movement of the compressor 100. This places high demands on the impact resistance of the plastic material forming the limiting block 10. In an optional embodiment, the limiting block 10 is made of PBT. PBT (polybutylene terephthalate) is a polyester produced by the condensation polymerization of terephthalic acid and 1,4-butanediol, and is an important thermoplastic polyester. It has good impact resistance and is widely applicable and relatively inexpensive.

[0034] Please see Figure 3 The limiting plate 13 includes a first limiting plate 131, which is formed by extending downward from the outer periphery of the support plate 12. The first limiting plate 131 is disposed between the housing and the pump body 20. Thus, when the compressor 100 is in a moving state, the compressor 100 shakes so that the first limiting plate 131 has a first limit position that contacts the pump body 20 and a second limit position that contacts the housing.

[0035] The first limiting plate 131 has an inwardly facing first limiting surface 131a and an outwardly facing second limiting surface 131b. The first limiting surface 131a is used to cooperate with the pump body 20, and the second limiting surface 131b is used to cooperate with the housing. For each support foot 22, the first limiting surface 131a and the second limiting surface 131b ensure the circumferential limiting of the housing. Specifically, when the compressor 100 moves to bring the first limiting plate 131 to a first extreme position, the first limiting surface 131a cooperates with the pump body 20 to buffer the impact. When the first limiting plate 131 is in a second extreme position, the second limiting surface 131b cooperates with the housing to buffer the impact. In one embodiment, to achieve better buffering, both the first limiting surface 131a and the second limiting surface 131b are curved. Furthermore, the first limiting block 131 has a certain thickness, meaning there is a certain filling and support structure between the first limiting surface 131a and the second limiting surface 131b.

[0036] The mounting column 11, the support plate 12, and the limiting plate 13 are injection molded as a single unit. It is worth noting that the mounting column 11, the support plate 12, and the limiting plate 13 are injection molded as a single unit, rather than being manufactured and assembled separately. This design increases the structural strength of the limiting block 10, enabling it to withstand more impacts and reducing the risk of damage. Furthermore, because the mounting column 11, the support plate 12, and the limiting plate 13 are integrated, there is no need for any mating relationships between them. In scenarios with frequent impacts, the support plate 12, the mounting column 11, and the limiting plate 13 are less likely to collide with each other, causing noise or damage. Traditional metal limiting blocks 10, due to their metal material, have higher costs and greater weight due to their integrated design. Therefore, using plastic for the limiting block 10 also reduces manufacturing costs.

[0037] Please see Figure 3 , Figure 4In an optional embodiment, the limiting block 10 includes two first limiting plates 131, which are symmetrically arranged along the central axis of the support plate 12. Since there is a certain gap between both sides of the pump body 20 and the housing, the two first limiting plates 131 are correspondingly arranged on both sides of the tail of the pump body 20. When the pump body 20 sways left and right, the two first limiting blocks 10 can respectively cooperate with the left and right sides of the tail of the pump body 20 to achieve protection of the pump body 20 in multiple directions.

[0038] Please see Figure 3 In an optional embodiment, the limiting block 10 further includes a second limiting plate 132, which is formed on the outer periphery of the support plate 12 and connects to two first limiting plates 131. The second limiting plate 132 has multiple limiting grooves 132a, which engage with the pump body 20. Specifically, a reinforcing rib 21 is formed on the upper surface of the tail of the pump body 20, and the limiting groove 132a engages with the reinforcing rib 21. This arrangement further fixes the limiting block 10 in the circumferential direction, preventing the limiting block 10 from rotating in the circumferential direction. In one embodiment, a first gap and a second gap are respectively present on the front and rear sides of the two limiting plates 131. The support plate 12 in the first gap is recessed inward. The second limiting plate 132 is formed on the outer periphery of the recess. The limiting block 10 also includes a reinforcing plate, which is disposed on the outer peripheral wall of the support plate 12, and both sides of the reinforcing plate are respectively connected to two of the first limiting plates 131. The addition of the reinforcing plate increases the structural strength of the limiting block 10.

[0039] Please see Figure 3 In an optional embodiment, the first limiting surface 131a is inclined outward from top to bottom. Based on the previous embodiment, the first limiting surface 131a has a certain draft angle. The draft angle refers to the angle designed to facilitate removal of the workpiece during demolding. It is a design whereby an ejector pin allows the plastic product to detach from the mold after molding and cooling. Due to the presence of the draft angle, the mold can be designed with a simpler structure, thus effectively reducing the manufacturing cost of the limiting block 10 during injection molding. It is worth noting that the first limiting surface 131a is used to cooperate with the pump body 20. When the compressor 100 moves, the first limiting surface 131a and the pump body 20 collide, thus providing a buffering effect. The inclined arrangement of the first limiting surface 131a facilitates the cooperation between the first limiting surface 131a and the pump body 20.

[0040] Please see Figure 4 , Figure 5 , Figure 6 In one optional embodiment, each of the limiting grooves 132a includes multiple inner wall surfaces with different curvatures. The number of inner wall surfaces is not less than two and not more than eight. The number of inner wall surfaces can be two, three, four, five, six, seven, or eight. In one embodiment, the number of inner wall surfaces is three. Specifically, the limiting slot has a first arm, a second arm, and a connecting portion. The two sides of the connecting portion are respectively connected to the bottom ends of the first arm and the second arm. This shape of the limiting groove 132a is more conducive to engaging the reinforcing ribs 21 of the pump body 20. In one embodiment, the inner wall surfaces of the first arm, the second arm, and the connecting portion have different curvatures.

[0041] Please see Figure 4 In an optional embodiment, the support plate 12 extends upward from its outer periphery to form a third limiting plate 133. When the limiting block 13 is installed on the pump body 20, the upper end face of the third limiting plate 133 is used to cooperate with the inner wall of the housing. When the compressor 100 moves in the up and down direction, the third limiting plate 133 is used to limit the movement between the pump body 20 and the housing in the up and down direction. Optionally, when the compressor 100 is used in a car refrigerator, and the car is traveling on a bumpy road, the housing and the pump body will move in the up and down direction. The setting of the third limiting plate 133 plays a role in limiting and buffering in the up and down direction. When the compressor 100 moves in the up and down direction, causing the pump body 20 to approach the inner wall of the housing, the third limiting surface is used to cooperate and contact the inner wall of the housing, thus playing a buffering role. Furthermore, because the limiting block 10 is made of plastic, it will not produce the unpleasant sound produced by metal collisions when impacted. Based on the previous optional embodiment, the third limiting plate 133 is formed on the outer periphery of the upper end surface of the support plate 12. This serves to increase the structural strength of the upper end of the limiting block 10.

[0042] Please see Figure 3In one optional embodiment, the mounting column 11 is tubular in structure, and its outer surface is press-fitted with the pump body 20. Because the mounting column 11 is hollow, it has a margin for inward deformation when subjected to external pressure, making it less prone to damage over long-term use. Furthermore, the upper end of the mounting column 11 is connected to the support plate 12. The pump body 20 has two support feet 22 at its tail, each with a mounting hole. In one embodiment, the compressor 100 includes two limiting blocks 10, which are respectively installed in the mounting holes of the two support feet 22. That is, the lower end of the mounting column 11 extends into the mounting hole, and the mounting column 11 and the inner wall of the mounting hole are press-fitted. Based on the previous optional embodiment, the outer surface of the mounting column 11 has a certain inward draft angle. That is, the outer surface of the mounting column 11 is gradually inclined downwards and inwards. This arrangement facilitates an interference fit between the mounting post 11 and the mounting hole.

[0043] This invention also proposes an embodiment of a refrigeration device. The refrigeration device includes a compressor as described above. The refrigeration device can be a refrigerator, washing machine, or other device with a compressor and refrigeration function. The specific structure of the compressor is as described in the above embodiments. Since the compressor adopts all the technical solutions of all the above embodiments, the refrigeration device at least has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0044] In one embodiment, the refrigeration device is a vehicle-mounted refrigerator, which is often used in mobile environments, meaning that the limiting block and the housing or pump body are subject to frequent impacts. A vehicle-mounted refrigerator with the compressor described above has advantages such as impact resistance, wear resistance, less risk of damaging the pump body, and lower noise levels.

[0045] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A compressor, characterized in that, include: case; The pump body is disposed within the housing; A limiting block is disposed between the pump body and the housing. The limiting block includes a mounting post, a support plate, and a limiting plate. The mounting post is connected to the pump body; the support plate is connected to the mounting post; the limiting block is made of plastic. The limiting plate includes two first limiting plates, which are formed by extending downward from the outer periphery of the support plate and are spaced apart. The limiting block also includes a second limiting plate, which is formed on the outer periphery of the support plate and connects the two first limiting plates. The second limiting plate forms a limiting groove. A reinforcing rib is formed on the upper surface of the pump body tail, and the limiting groove is engaged with the reinforcing rib. Each limiting groove includes multiple inner wall surfaces with different curvatures.

2. The compressor as described in claim 1, characterized in that, The first limiting plate is disposed between the pump body and the housing.

3. The compressor as described in claim 2, characterized in that, The first limiting plate has an inwardly facing first limiting surface and an outwardly facing second limiting surface. The first limiting surface is used to cooperate with the pump body, and the second limiting surface is used to cooperate with the housing.

4. The compressor as described in claim 3, characterized in that, The mounting column, the support plate, and the limiting plate are injection molded as a single unit.

5. The compressor as described in claim 4, characterized in that, The two first limiting plates are symmetrically arranged along the central axis of the support plate.

6. The compressor as described in claim 5, characterized in that, The first limiting surface is inclined outward from top to bottom.

7. The compressor as claimed in claim 1, characterized in that, The number of inner wall surfaces is not less than 2 and not more than 8.

8. The compressor as claimed in claim 1, characterized in that, The outer periphery of the support plate extends upward to form a third limiting plate.

9. The compressor as claimed in claim 8, characterized in that, The mounting column is arranged in a tubular structure, and the outer surface of the mounting column is interference-fitted with the pump body.

10. A refrigeration device, characterized in that, The refrigeration equipment includes a compressor as described in any one of claims 1 to 9.

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