CN220646139U - Box structure of low-noise compressor - Google Patents

Abstract

The utility model discloses a box body structure of a low-noise compressor, which comprises a box body and an end cover. The box body is provided with a motor cavity and a crank cavity at intervals through a baffle plate, the baffle plate is provided with a through hole, the baffle plate is also provided with a first groove and a second groove, a plurality of raised strips are arranged on the inner peripheral wall of the box body at intervals, the raised strips are positioned in the crank cavity, and the box body is provided with an air inlet communicated with the crank cavity; the end cap is mounted on the housing and is closer to the crank chamber. When the compressor reciprocates the piston, high temperature can be generated in the box body, a large amount of noise is generated, air enters from the air inlet, the high temperature generated in the box body can be taken away by air flow through gaps of the convex blocks and the grooves, the heat dissipation effect is achieved, and the service life of the bearing is prolonged. The surface area can be increased through structures such as grooves and raised strips arranged on the box body and the end cover, and the sound wave can be reflected in multiple sections, so that the effect of noise reduction is achieved.

Description

Box structure of low-noise compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to a box structure of a low-noise compressor.

Background

Currently, compressors are very widely used electromechanical products, however, the compressors tend to generate very much noise and high temperature during operation, and the generation of such noise and high temperature depends largely on the specific structure of the compressor. The compressor is divided into a positive displacement type and a speed type according to the principle of increasing the gas pressure, a piston type compressor which is frequently used nowadays belongs to the positive displacement type, and a crankshaft is a power transmission part of the piston type compressor and belongs to an indispensable part of the piston type compressor. External power such as a motor transmits the power to the compressor through a crankshaft, and then drives the other part of the compressor, namely the connecting rod, to reciprocate, so that the operation of the piston compressor is realized. The crankshaft is usually arranged in the crankcase, and the crankshaft and the connecting rod reciprocate repeatedly and intake air flow sounds can generate great noise and high temperature in the crankcase, the health of a user can be influenced by the overlarge noise, and the service life of the compressor can be greatly influenced by the high temperature generated by long-time work.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a casing structure of a compressor with low noise, which is capable of dissipating heat and reducing noise.

To achieve the purpose, the utility model adopts the following technical scheme: the box body structure of the low-noise compressor comprises a box body and end covers, wherein a motor cavity and a crank cavity are formed in the box body at intervals through a baffle, a through hole is formed in the baffle so that an output shaft of the motor stretches into the crank cavity, a first groove and a second groove are formed in the baffle, the first grooves are arranged at intervals around the center of the through hole, protruding blocks protruding towards the crank shaft direction are arranged between every two first grooves, the number of the second grooves is matched with the number of the first grooves, the second grooves are positioned on the outer peripheral sides of the first grooves and the protruding blocks in the radial direction, a plurality of protruding strips are arranged on the inner peripheral wall of the box body at intervals, the protruding strips are positioned in the crank cavity, and an air inlet communicated with the crank cavity is formed in the box body; the end cap is mounted on the housing and is closer to the crank chamber.

Further, a plurality of threaded connection holes are formed in the connection portion of the box body and the end cover.

Further, a plurality of annular raised strips are arranged on one side, close to the crank cavity, of the end cover, and a plurality of grooves are formed between every two annular raised strips.

Further, a step hole into which the piston connecting rod can extend is formed in the upper side of the crank cavity.

Further, the convex strips are semi-round bodies with the same size.

Compared with the prior art, the utility model has the beneficial effects that:

through first recess, second recess and the lug that set up on the baffle, in the air inlet gets into the box, this compressor is carrying out the during operation, the motion member is reciprocating motion in the inside of box, because the motion member compresses the inside gas of box when reciprocating motion, let produce the high temperature in the box, through first recess, second recess and the lug that set up on the baffle, there is the gap between the adjacent lug, the air current can take away the high temperature that produces in the box through the gap, the radiating effect has been played, corresponding life-span of bearing has also been improved. When the compressor reciprocates the piston, a large amount of noise can be generated by the movement of each part, the surface area can be increased by the structures such as grooves, convex strips and the like arranged on the box body and the end cover, the sound waves can be reflected in a plurality of sections, the sounds are mutually counteracted, and the noise reduction effect is achieved.

Drawings

The present utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.

FIG. 1 is an overall schematic of the case structure of one embodiment of the present utility model;

FIG. 2 is an isometric view of a case of one embodiment of the utility model;

FIG. 3 is an isometric view of an end cap of one embodiment of the utility model;

FIG. 4 is a schematic rear view of the case structure of one embodiment of the present utility model;

fig. 5 is a cross-sectional view of a case structure according to one embodiment of the present utility model.

In the accompanying drawings: 1. a case; 2. an end cap; 211. annular raised strips; 212. a groove; 3. a crank chamber; 311. a convex strip; 312. a step hole; 313. an air inlet; 4. a motor cavity; 5. a stop block; 511. a through hole; 512. a bump; 513. a first groove; 514. a second groove; 6. and (5) connecting the holes by threads.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1-5, a box structure of a low noise compressor includes a box 1 and an end cover 2, wherein the box 1 is formed with a motor cavity 4 and a crank cavity 3 at intervals by a baffle 5, the baffle 5 is provided with a through hole 511 to allow an output shaft of the motor to extend into the crank cavity 3, the baffle 5 is also provided with a first groove 513 and a second groove 514, the first grooves 513 are arranged at intervals around the center of the through hole 511, a bump 512 protruding towards the direction of the crank cavity 3 is arranged between every two first grooves 513, the number of the second grooves 514 is matched with the number of the first grooves 513, and is positioned at the outer circumference side of the first grooves 513 and the bump 512 in the radial direction, a plurality of raised strips 311 are arranged at intervals on the inner circumference wall of the box 1, the raised strips 311 are positioned in the crank cavity 3, and an air inlet 313 communicated with the crank cavity 3 is arranged on the box 1; an end cap 2 is mounted on the housing 1 closer to the crank chamber 3.

According to the technical scheme provided by the utility model, air enters the box body 1 from the air inlet 313, when the compressor works, the motion rod piece reciprocates in the box body 1, and because the motion rod piece compresses the air in the box body 1 during the reciprocation, high temperature is generated in the box body 1, gaps exist between the adjacent protruding blocks 512 through the first grooves 513, the second grooves 514 and the protruding blocks arranged on the baffle plate 5, and the high temperature generated in the box body 1 can be taken away by air flow through the gaps, so that the heat dissipation effect is achieved, and the service life of the bearing is correspondingly prolonged. When the compressor reciprocates the piston, a large amount of noise can be generated by the movement of each part, the surface area can be increased by the structures such as grooves, convex strips and the like arranged on the box body 1 and the end cover 2, the sound waves can be reflected in a plurality of sections, the sounds are mutually counteracted, and the effect of noise reduction is achieved.

Preferably, the connecting part of the box body 1 and the end cover 2 is provided with a plurality of threaded connecting holes 6.

Specifically, the end cap 2 is connected to the threaded connection hole 6 by passing a bolt portion of a screw through the end cap 2, so that the end cap 2 and the case 1 can be assembled.

Preferably, one side of the end cover 2 close to the crank cavity 3 is provided with a plurality of annular raised strips, and a plurality of grooves are arranged between every two annular raised strips.

Specifically, air enters the box 1 from the air inlet 313, when the compressor works, the motion rod piece reciprocates in the box 1, and because of the reciprocating motion of the motion rod piece, a great amount of noise is generated by air vibration, sound is reflected on the box 1 and the end cover 2, the annular convex strips 211 and the grooves 212 arranged on the end cover 2 increase the area of sound reflection, sound waves reflected on the end cover 2 are weakened, the annular convex strips 211 and the grooves 212 are respectively corresponding to each other, partial sound waves are mutually offset, and the noise reduction effect is achieved.

Preferably, the upper side of the crank chamber 3 is provided with a stepped hole 312 into which the piston rod is inserted.

Specifically, the step hole 312 arranged on the upper side of the crank cavity 3 can be used for installing and extending the piston connecting rod, and the inner wall of the upper side of the hole is large in size and can be installed with the cylinder sleeve in an adapting way, so that the cylinder sleeve and the box body 1 can be tightly connected.

It should be noted that the moving rod mentioned above is a piston rod.

Preferably, the plurality of protruding strips 311 are semi-circular bodies with uniform sizes.

Specifically, when the compressor coil is electrified, the motor drives the crankshaft to rotate, the crankshaft further drives the connecting rod and the piston to move downwards, a great amount of noise is generated by air vibration in the movement process, sound waves are reflected on the annular inner wall, the sound waves pass through the convex strips 311 on the annular inner wall, the convex strips increase the reflection area of sound on the annular inner wall, the sound waves are weakened by the increase of the reflection area, the convex strips 311 are semi-circles which correspond to each other and are consistent in size, and partial sound waves are counteracted after being reflected by each other, so that the effect of noise reduction is achieved.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of this specification without the exercise of inventive faculty, and such equivalent modifications and alternatives are intended to be included within the scope of the utility model as defined in the claims.

Claims (5)

1. The utility model provides a box structure of compressor of low noise, includes box (1) and end cover (2), its characterized in that: the box body (1) is provided with a motor cavity (4) and a crank cavity (3) at intervals through a baffle plate (5), the baffle plate (5) is provided with a through hole (511) so that an output shaft of the motor stretches into the crank cavity (3), the baffle plate (5) is also provided with a first groove (513) and a second groove (514), the first grooves (513) are arranged at intervals around the center of the through hole (511), each two first grooves (513) are provided with a convex block (512) protruding towards the direction of the crank cavity (3), the number of the second grooves (514) is matched with the number of the first grooves (513), the second grooves (514) are positioned on the outer circumference sides of the first grooves (513) and the convex blocks (512) in the radial direction, the inner circumference wall of the box body (1) is provided with a plurality of convex strips (311) at intervals, the convex strips (311) are positioned in the crank cavity (3), and the box body (1) is provided with an air inlet (313) communicated with the crank cavity (3); the end cover (2) is arranged on the box body (1) and is closer to the crank cavity (3).

2. The low noise compressor housing structure of claim 1, wherein: the connecting part of the box body (1) and the end cover (2) is provided with a plurality of threaded connecting holes (6).

3. The low noise compressor housing structure of claim 1, wherein: one side of the end cover (2) close to the crank cavity (3) is provided with a plurality of annular raised strips (211), and a plurality of grooves (212) are formed between every two annular raised strips (211).

4. The low noise compressor housing structure of claim 1, wherein: the upper side of the crank cavity (3) is provided with a step hole (312) into which the piston connecting rod can extend.

5. The low noise compressor housing structure of claim 1, wherein: the convex strips (311) are semi-round bodies with the same size.