CN216381783U - Compressor with backflow prevention assembly - Google Patents

Abstract

The utility model relates to the technical field of compressors, in particular to a compressor with an anti-backflow assembly, which comprises a shell, wherein a stator and a rotor are arranged in the shell, the stator is wound on an outer ring of the rotor in an annular structure, output shafts on two sides of the rotor penetrate out of the shell and are connected with a driving assembly, an end cover, a bottom cover and a cylinder sleeve are sequentially arranged above the shell from top to bottom corresponding to the position of the output shaft of the rotor, a penetrating air inlet hole and a penetrating air outlet hole are formed in the end face of the bottom cover, valve plates are arranged on the bottom face of the bottom cover corresponding to the air inlet hole and the top face of the bottom cover corresponding to the air outlet hole, and the valve plates are made of elastic materials. According to the utility model, the air inlet and outlet structure of the compressor is improved, the elastic valve plate is added to prevent the backflow of inlet and outlet air, the air inlet and outlet efficiency of the compressor is improved, the energy efficiency ratio is optimized, and the compressor has better use performance on a plurality of devices applying the compressor.

Description

Compressor with backflow prevention assembly

Technical Field

The utility model relates to the technical field of compressors, in particular to a compressor with an anti-backflow assembly.

Background

The compressor is a driven fluid machine for lifting low-pressure gas into high-pressure gas, is the heart of a refrigeration system, sucks low-temperature low-pressure refrigerant gas from an air suction pipe, drives an air delivery piston to compress the refrigerant gas through the operation of a motor, and discharges the high-temperature high-pressure refrigerant gas to an exhaust pipe to provide power for a refrigeration cycle.

In the working process of the existing compressor, airflow needs to be circularly guided in and out, and because the traditional compressor generally does not adopt a backflow prevention design for an air inlet and an air outlet of the compressor, the airflow can interfere with the airflow flowing out of the air outlet in the process of flowing in from the air inlet, and vice versa, therefore, the compressor with the backflow prevention assembly is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problems, the utility model aims to provide a compressor with an anti-backflow assembly, and aims to solve the problem that the air inlet and outlet efficiency of the compressor is influenced because an air inlet and outlet structure is not designed in an anti-backflow manner in the conventional compressor.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a compressor with anti-return assembly, includes the casing, be provided with stator and rotor in the casing, the stator is the loop configuration around the package and is in the rotor outer lane, the both sides output shaft of rotor all wears out the casing is connected with drive assembly, the top of casing corresponds the position top-down of rotor output shaft has set gradually end cover, bottom and cylinder liner, the inlet port and the venthole of run-through are seted up to the terminal surface of bottom, wherein, the bottom surface of bottom corresponds the inlet port is in place and the top surface corresponds venthole department all is provided with the valve block, the valve block is made by elastic material.

The valve plate is of a strip structure, one end of the valve plate is blocked with the air inlet or the air outlet, and the other end of the valve plate is connected with the end face of the bottom cover in a screwing mode through a screw.

The end cover is of a rectangular cavity structure with an opening at the lower end, the lower end of the end cover is in airtight butt joint with the top surface of the bottom cover, a sealing strip is further arranged at the butt joint position, and the cylinder sleeve is sleeved at the lower end of the bottom cover.

The top surface of the end cover is equidistantly provided with a plurality of transverse ribs for assisting heat dissipation.

And further, the two end covers are communicated with each other through two parallel guide pipes.

The fixing piece is matched with the guide post to realize an installation-free fixing mode.

The driving assembly comprises an eccentric wheel and a connecting rod, the eccentric wheel is sleeved on output shafts on two sides of the rotor, the eccentric wheel is connected with a leather cup through the connecting rod, and the leather cup is in sliding sleeve connection with the cylinder sleeve.

The utility model has the beneficial effects that:

through improving the business turn over gas structure to the compressor, increase elastic valve block and prevent business turn over gas backward flow, improved the business turn over gas efficiency of compressor, optimized the energy efficiency ratio, all had better performance on a plurality of equipment of applied compressor.

Drawings

The utility model will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the combination of the end cap, bottom cap, cylinder liner and cup of the present invention;

FIG. 4 is a top view of the bottom cover of the present invention;

fig. 5 is a bottom view of the bottom cover of the present invention.

In the figure: 1. a housing; 11. a fixing member; 2. a rotor; 21. an eccentric wheel; 22. a connecting rod; 23. a leather cup; 3. an end cap; 31. a bottom cover; 311. an air inlet; 312. an air outlet; 313. a valve plate; 314. a screw; 32. a cylinder liner; 33. transverse ribs; 4. a flow guide pipe; 5. and a stator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a compressor with backflow prevention assembly, including casing 1, be provided with stator 5 and rotor 2 in the casing 1, stator 5 is the loop configuration around the package in rotor 2 outer lane, the both sides output shaft of rotor 2 all wears out casing 1 and is connected with drive assembly, as shown in fig. 2 and 3, drive assembly includes eccentric wheel 21 and connecting rod 22, the both sides output shaft of rotor 2 all overlaps and is equipped with eccentric wheel 21, eccentric wheel 21 is connected with leather cup 23 through connecting rod 22, during compressor operation, rotor 2 is fast rotating under the influence of stator 5, drive eccentric wheel 21 synchronous revolution, and connecting rod 22 and leather cup 23 are the reciprocating piston motion of circulation under the effect of eccentric wheel 21.

As shown in fig. 2 and 3, an end cover 3, a bottom cover 31 and a cylinder sleeve 32 are sequentially arranged from top to bottom at a position above the housing 1 corresponding to the output shaft of the rotor 2, the end cover 3 is of a rectangular cavity structure with an open lower end, the lower end of the end cover is in sealed butt joint with the top surface of the bottom cover 31, a sealing strip is further arranged at the butt joint, the cylinder sleeve 32 is sleeved at the lower end of the bottom cover 31, the end cover 3, the bottom cover 31, the cylinder sleeve 32 and a leather cup 23 sleeved in the cylinder sleeve 32 form a sealed cavity, gas circularly flows and flows out in the sealed cavity to compress the gas, the bottom cover 31 is fixedly connected with the housing 1 through a lug on the side face, the three are of an integrated structure, the integrity is high, and the fracture phenomenon after long-time use is avoided.

As shown in fig. 4 and 5, the end surface of the bottom cover 31 is provided with a through air inlet hole 311 and an air outlet hole 312, wherein the valve plate 313 is disposed at the position of the bottom surface of the bottom cover 31 corresponding to the air inlet hole 311 and the position of the top surface corresponding to the air outlet hole 312, the valve plate 313 is made of an elastic material, such as silica gel, rubber, etc., in this embodiment, the valve plate 313 is in a strip structure, one end of the valve plate is plugged in the air inlet hole 311 or the air outlet hole 312, and the other end is screwed and connected with the end surface of the bottom cover 31 through a screw 314.

According to the technical scheme of the upper section, when the compressor runs, the leather cup 23 and the connecting rod 22 do reciprocating piston motion under the action of the eccentric wheel 21, when the leather cup 23 descends in the cylinder sleeve 32, external air is sucked into the end cover 3 and enters the cylinder sleeve 32 from the air inlet hole 311, in the process, one end, corresponding to the air inlet hole 311, of the valve sheet 313 on the bottom surface of the bottom cover 31 is blown, the air can directly enter the cylinder sleeve 32, due to the reason of the air flow direction of the valve sheet 313 on the top surface of the air outlet hole 312 on the other side, the valve sheet 313 is tightly attached to the top surface of the bottom cover 31 and seals the air outlet hole 312, mutual interference of the air inlet and the air outlet is avoided, the air inlet and outlet efficiency of the compressor is improved, the energy efficiency ratio is optimized, a good effect is achieved on multiple devices applying the compressor, when the leather cup 23 ascends, air flows into the end cover 3 from the air outlet hole 312, the effect of the valve sheet 313 is similar to that is achieved, and repeated description is omitted.

As shown in fig. 2, the two end covers 3 are communicated with each other through the two parallel flow guide pipes 4, the leather cups 23 at the two ends of the compressor are opposite in action posture, the leather cup 23 at one end is lifted, the leather cup 23 at the other end is lowered, so that the gas is continuously guided in and out, and the gas pushed out through the leather cup 23 is discharged through a pipeline after one-time flow between the two end covers 3 is completed through the two flow guide pipes 4, so that the gas is compressed.

As shown in fig. 1, the top surface of the end cover 3 is equidistantly provided with a plurality of transverse ribs 33 for assisting in heat dissipation, and the contact area between the end cover 3 and the outside air can be increased by the arrangement of the transverse ribs 33, so that the heat dissipation efficiency is improved.

As shown in fig. 1, a plurality of fixing pieces 11 are arranged outside the casing 1, and the fixing pieces 11 are matched with the guide posts to realize quick installation of the compressor, so that the fixing mode of the traditional compressor is changed, the structure is simple, and the fixation is reliable.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the utility model to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the utility model as defined in the following claims.

Claims (7)

1. A compressor with a backflow prevention assembly comprises a shell (1), wherein a stator (5) and a rotor (2) are arranged in the shell (1), the stator (5) is wrapped on the outer ring of the rotor (2) in an annular structure, output shafts on two sides of the rotor (2) penetrate through the shell (1) and are connected with a driving assembly, an end cover (3), a bottom cover (31) and a cylinder sleeve (32) are sequentially arranged above the shell (1) corresponding to the output shaft of the rotor (2) from top to bottom, it is characterized in that the end surface of the bottom cover (31) is provided with a through air inlet hole (311) and an air outlet hole (312), valve plates (313) are arranged at the positions, corresponding to the air inlet holes (311), of the bottom cover (31) and at the positions, corresponding to the air outlet holes (312), of the top surface of the bottom cover, and the valve plates (313) are made of elastic materials.

2. The compressor with the backflow prevention assembly as claimed in claim 1, wherein the valve plate (313) has a strip shape, one end of the strip shape blocks the air inlet hole (311) or the air outlet hole (312), and the other end of the strip shape is screwed with the end surface of the bottom cover (31) through a screw (314).

3. The compressor with the backflow prevention assembly as claimed in claim 1, wherein the end cover (3) is a rectangular cavity structure with an open lower end, the lower end of the end cover is hermetically abutted with the top surface of the bottom cover (31), a sealing strip is further disposed at the abutted position, and the cylinder sleeve (32) is sleeved on the lower end of the bottom cover (31).

4. Compressor with anti-backflow assembly, according to claim 1, characterized in that the top surface of the end cover (3) is provided with a plurality of transverse ribs (33) at equal intervals for assisting heat dissipation.

5. The compressor with the backflow-preventing assembly as claimed in claim 1, wherein the two end covers (3) are in chamber communication with each other through two parallel flow-guiding pipes (4).

6. Compressor with backflow prevention assembly according to claim 1, characterized in that the housing (1) is provided with a plurality of fixing elements (11) on the outside, and the fixing elements (11) are fixed in an installation-free manner by cooperating with guide posts.

7. The compressor with the backflow prevention assembly is characterized in that the driving assembly comprises an eccentric wheel (21) and a connecting rod (22), the eccentric wheel (21) is sleeved on output shafts on two sides of the rotor (2), the eccentric wheel (21) is connected with a leather cup (23) through the connecting rod (22), and the leather cup (23) is in sliding sleeve connection with the cylinder sleeve (32).

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