Air suction silencer of refrigeration compressor

Abstract

The utility model discloses an air suction silencer of a refrigeration compressor, and relates to the technical field of refrigerator refrigeration compressors. The silencer comprises a silencing pipe, a Y-shaped pipe is arranged at the outer top of the silencing pipe, an air inlet pipe is connected to the bottom of the silencing pipe, a second annular plate is fixedly connected to the top end of the Y-shaped pipe, and a plurality of second through holes are formed in the top of the second annular plate; an annular threaded groove is formed in the top of the Y-shaped pipe, a threaded pipe is in threaded connection with the interior of the annular threaded groove, U-shaped connecting rods are symmetrically and fixedly connected to the top of the threaded pipe, and a silencing cotton pipe located on the inner side of the threaded pipe is fixedly connected between the two U-shaped connecting rods. According to the utility model, various noise reduction modes are matched for use, so that the condition that the use comfort is influenced due to overlarge noise in the air suction process of the refrigeration compressor of the refrigerator is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerator refrigeration compressors, in particular to a refrigeration compressor suction muffler. Background Art

[0002] Ordinary refrigeration compressors usually install a motor and a cylinder through a cylinder seat in a shell. The shell is provided with an intake pipe and an exhaust pipe, which are respectively connected to the intake hole and the exhaust hole on the cylinder head by metal pipes or silencers. In particular, refrigerator refrigeration compressors are provided with an intake silencer between the intake pipe port in the shell and the intake hole on the cylinder head, so as to reduce the noise during the intake process of the refrigerator refrigeration compressor, thereby improving the comfort during use.

[0003] The silencer currently used on the refrigerator refrigeration compressor has a porous sound-absorbing cotton on its inner wall to achieve the effect of noise reduction. The noise reduction method of this silencer is single and the air noise is not well attenuated, thus affecting the noise reduction effect.

[0004] To this end, we provide a refrigeration compressor suction muffler to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a refrigeration compressor suction silencer, which, through the coordinated use of multiple noise reduction methods, ensures that the noise during the suction process of the refrigerator refrigeration compressor is too loud, which affects the comfort during use, and solves the problem that the existing silencer has a single noise reduction method, resulting in poor noise reduction effect.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is a refrigeration compressor suction silencer, comprising a silencer pipe; a Y-shaped pipe is arranged on the outer top of the silencer pipe, an air intake pipe is connected to the bottom of the silencer pipe, a circular ring plate two is fixedly connected to the top of the Y-shaped pipe, a plurality of through holes two are opened on the top of the circular ring plate two; an annular thread groove is opened on the top of the Y-shaped pipe, a threaded pipe is connected to the inner thread of the annular thread groove, a U-shaped connecting rod is symmetrically fixedly connected to the top of the threaded pipe, a silencer cotton pipe located on the inner side of the threaded pipe is fixedly connected between the two U-shaped connecting rods; a mounting plate is fixedly connected to the inner peripheral side of the silencer pipe, a rotating shaft is symmetrically penetrated and rotatably connected to the top of the mounting plate, one end of the two rotating shafts is fixedly connected to mutually meshing gears, the other end of the rotating shaft is fixedly connected to a disc, a plurality of fan blades are fixedly connected to the peripheral side of the disc.

[0008] The utility model is further configured that the ends of the two branch pipes in the Y-shaped pipe are fixedly connected with a circular ring plate, and a plurality of through holes are opened on the top of the circular ring plate.

[0009] The utility model is further configured such that the outer top of the silencer pipe is symmetrically provided with connection holes matching the Y-shaped pipe, the outer top of the silencer pipe is provided with a plurality of threaded holes arranged in a circular array and matching the through hole, and the circular ring plate and the silencer pipe are fixedly connected by bolts.

[0010] The utility model is further configured that an air intake pipe is arranged at the bottom of the muffler pipe, a circular ring plate three is fixedly connected to the bottom of the muffler pipe, and a circular ring plate four is fixedly connected to the top of the air intake pipe.

[0011] The utility model is further configured that the circular ring plate three and the circular ring plate four are provided with a plurality of threaded holes two in a circular array and matching with each other, and the circular ring plate three and the circular ring plate four are fixedly connected by bolts two.

[0012] The utility model is further configured such that screw holes are symmetrically opened on the top of the silencer cotton tube, and a sealing gasket is arranged on the top of the silencer cotton tube.

[0013] The utility model is further configured that a honeycomb-shaped sound-absorbing cotton pad is installed on the inner wall of the silencer pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model reduces the wind noise in the Y-shaped tube by setting a silencer cotton tube inside the Y-shaped tube. When the air flows into the silencer tube, the fan blades and the rotating shaft are driven to rotate. At the same time, the rotating shaft drives the two gears to mesh and rotate with each other, so that the airflow direction generated during the rotation of the fan blades generates convection with the direction of the air flow, thereby reducing the noise of the air flow.

[0016] 2. The utility model also has the effect of reducing air noise by changing the cross section of the cavity during the process of air passing from the air intake pipe to the silencer pipe and the air in the silencer pipe entering the Y-shaped pipe. The coordinated use of multiple noise reduction methods ensures that the noise during the suction process of the refrigerator refrigeration compressor is too loud, which affects the comfort during use.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1The figure is a three-dimensional structural diagram of a refrigeration compressor suction muffler.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of a Y-shaped tube in a suction muffler of a refrigeration compressor.

[0021] Figure 3 The present invention is a three-dimensional structural schematic diagram of the connection between a silencer cotton tube and a threaded tube in a suction silencer of a refrigeration compressor.

[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0023] Figure 5 The present invention is a three-dimensional structural schematic diagram of the connection between a silencer pipe, a connection hole and a threaded hole in a suction silencer of a refrigeration compressor.

[0024] Figure 6 for Figure 5 Schematic diagram of the cross-sectional three-dimensional structure.

[0025] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of the connection between the air intake pipe and the circular ring plate 4 in the suction muffler of a refrigeration compressor.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-silencer pipe, 2-Y-shaped pipe, 3-intake pipe, 4-circular ring plate one, 5-through hole one, 6-circular ring plate two, 7-threaded pipe, 8-annular threaded groove, 9-silencer cotton pipe, 10-U-shaped connecting rod, 11-screw hole, 12-through hole two, 13-connecting hole, 14-threaded hole one, 15-circular ring plate three, 16-mounting plate, 17-rotating shaft, 18-gear, 19-disc, 20-fan blades, 21-circular ring plate four, 22-threaded hole two. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] For specific embodiment 1, please refer to Figure 1-7The utility model is a refrigeration compressor suction silencer, comprising a silencer pipe 1; a Y-shaped pipe 2 is arranged on the outer top of the silencer pipe 1, an air intake pipe 3 is connected to the bottom of the silencer pipe 1, a circular ring plate 6 is fixedly connected to the top of the Y-shaped pipe 2, and a plurality of through holes 12 are opened on the top of the circular ring plate 6; an annular thread groove 8 is opened on the top of the Y-shaped pipe 2, a threaded pipe 7 is connected to the inner thread of the annular thread groove 8, a U-shaped connecting rod 10 is symmetrically fixedly connected to the top of the threaded pipe 7, and a position fixing rod 10 is fixedly connected between the two U-shaped connecting rods 10. A sound-absorbing cotton tube 9 is arranged on the inner side of the threaded tube 7, and screw holes 11 are symmetrically provided on the top of the sound-absorbing cotton tube 9, and a sealing gasket is arranged on the top of the sound-absorbing cotton tube 9; a mounting plate 16 is fixedly connected to the inner peripheral side surface of the sound-absorbing pipe 1, and a rotating shaft 17 is symmetrically penetrated and rotatably connected to the top of the mounting plate 16, and one end of the two rotating shafts 17 is fixedly connected to mutually meshing gears 18, and the other end of the rotating shaft 17 is fixedly connected to a disc 19, and a plurality of fan blades 20 are fixedly connected to the peripheral side surface of the disc 19, and a honeycomb sound-absorbing cotton pad is installed on the inner wall of the sound-absorbing pipe 1.

[0030] The operation process of this embodiment is as follows: first, the threaded tube 7 and the silencer cotton tube 9 connected by the U-shaped connecting rod 10 are placed in the Y-shaped tube 2, wherein the threaded tube 7 is placed in the annular threaded groove 8 opened on the Y-shaped tube 2, and then two external plug rods or U-shaped rods adapted thereto are inserted into the screw hole 11, and then the two plug rods or U-shaped rods are screwed to drive the threaded tube 7 to rotate so that it is threadedly connected to the threaded groove 8, thereby completing the installation of the silencer cotton tube 9, so that the silencer cotton tube 9 reduces the wind noise in the Y-shaped tube 2, and at the same time, the subsequent disassembly and replacement of the silencer cotton tube 9 is more convenient and quick, and then the end of the Y-shaped tube is installed on the air inlet port of the refrigerator refrigeration compressor, and the refrigerator refrigeration compressor works to suck in the outside air from the intake pipe 3, and the air flows In the process of entering the silencer 1, the fan blades 20 and the rotating shaft 17 are driven to rotate (the angle of the fan blades 20 determines the direction of air flow, thereby driving the two fan blades to rotate in opposite directions). At the same time, the rotating shaft 17 drives the two gears 18 to mesh and rotate with each other, so that the direction of the airflow generated in the process of rotating the fan blades 20 (the airflow generated by the fan blades 20 will not affect the suction effect of the refrigerator refrigeration compressor) generates convection with the direction of air flow, thereby reducing the noise of air flow. In addition, in the process of air flowing from the air intake pipe 3 to the silencer 1 and the air in the silencer 1 entering the Y-shaped tube 2, the change of the cavity cross-section therein also has the effect of reducing the noise of the air, thereby ensuring that the noise during the suction process of the refrigerator refrigeration compressor is too loud and affects the comfort during use.

[0031] For specific embodiment 2, please refer to Figure 1-7On the basis of the specific embodiment 1, the ends of the two branches in the Y-shaped tube 2 are fixedly connected with a circular plate 4, a plurality of through holes 5 are opened on the top of the circular plate 4, and a connection hole 13 matching the Y-shaped tube 2 is symmetrically opened on the outer top of the silencer tube 1, and a plurality of threaded holes 14 arranged in a circular array and matching the through holes 5 are opened on the outer top of the silencer tube 1, and the circular plate 4 and the silencer tube 1 are fixedly connected by a bolt.

[0032] The operation process of this embodiment is: the circular plates 4 on the two branches of the Y-shaped tube 2 are placed correspondingly on the connecting holes 13 at the top of the silencer tube 1, and then the fixed connection between the Y-shaped tube 2 and the silencer tube 1 is completed by bolts 1, so that the silencer tube 1 and the Y-shaped tube 2 can be detached.

[0033] For specific embodiment 3, please refer to Figure 1-7 On the basis of the specific embodiment 1 and the specific embodiment 2, an air intake pipe 3 is arranged at the bottom of the muffler 1, a circular ring plate 3 15 is fixedly connected to the bottom of the muffler 1, a circular ring plate 4 21 is fixedly connected to the top of the air intake pipe 3, a plurality of threaded holes 22 in a circular array and matching each other are provided on the circular ring plate 3 15 and the circular ring plate 4 21, and the circular ring plate 3 15 and the circular ring plate 4 21 are fixedly connected by bolts 2.

[0034] The operation process of this embodiment is: align the circular plate four 21 on the intake pipe 3 with the circular plate three 15 at the lower end of the muffler pipe 1, and then fix the circular plate three 15 and the circular plate four 21 by bolt two, so that the intake pipe 3 and the muffler pipe 1 can be detached.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A refrigeration compressor suction muffler, comprising a muffler pipe (1); characterized in that: The outer top of the muffler pipe (1) is provided with a Y-shaped pipe (2), the bottom of the muffler pipe (1) is connected to an air intake pipe (3), the top of the Y-shaped pipe (2) is fixedly connected to a second circular plate (6), and the top of the second circular plate (6) is provided with a plurality of second through holes (12); The top of the Y-shaped tube (2) is provided with an annular thread groove (8), the inner thread of the annular thread groove (8) is connected to a threaded tube (7), the top of the threaded tube (7) is symmetrically fixedly connected to a U-shaped connecting rod (10), and a sound-absorbing cotton tube (9) located inside the threaded tube (7) is fixedly connected between the two U-shaped connecting rods (10); The inner circumferential side surface of the silencer pipe (1) is fixedly connected to a mounting plate (16), the top of the mounting plate (16) is symmetrically penetrated by a rotating shaft (17) for rotation connection, one end of the two rotating shafts (17) is fixedly connected to mutually meshing gears (18), the other end of the rotating shaft (17) is fixedly connected to a disk (19), and the circumferential side surface of the disk (19) is fixedly connected to a plurality of fan blades (20).

2. A refrigeration compressor suction muffler according to claim 1, characterized in that: The ends of the two branches of the Y-shaped tube (2) are fixedly connected to a circular ring plate (4), and a plurality of through holes (5) are formed on the top of the circular ring plate (4).

3. A refrigeration compressor suction muffler according to claim 2, characterized in that: The outer top of the silencer pipe (1) is symmetrically provided with connection holes (13) matching the Y-shaped pipe (2), and the outer top of the silencer pipe (1) is provided with a plurality of threaded holes (14) arranged in a circumferential array and matching the through hole (5), and the annular plate (4) and the silencer pipe (1) are fixedly connected by bolts (1).

4. A refrigeration compressor suction muffler according to claim 3, characterized in that: An air intake pipe (3) is arranged at the bottom of the muffler pipe (1), a circular ring plate three (15) is fixedly connected to the bottom of the muffler pipe (1), and a circular ring plate four (21) is fixedly connected to the top of the air intake pipe (3).

5. A refrigeration compressor suction muffler according to claim 4, characterized in that: The annular plate three (15) and the annular plate four (21) are provided with a plurality of threaded holes two (22) arranged in a circular array and matching each other, and the annular plate three (15) and the annular plate four (21) are fixedly connected by bolts two.

6. A refrigeration compressor suction muffler according to claim 5, characterized in that: The top of the silencer cotton tube (9) is symmetrically provided with screw holes (11), and the top of the silencer cotton tube (9) is provided with a sealing gasket.

7. A refrigeration compressor suction muffler according to claim 6, characterized in that: The inner wall of the silencer pipe (1) is provided with a honeycomb-shaped sound-absorbing cotton pad.

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