Suction silencer for refrigerator compressor

Abstract

The suction silencer for the refrigerator compressor comprises a silencing cavity, the silencing cavity comprises a left silencing cavity body and a right silencing cavity body which are connected in a buckling mode, a circle of buckling groove is formed in the buckling end face of the left silencing cavity body, a first partition plate clamping groove is formed in the upper portion of the inner wall of the left silencing cavity body, and a second partition plate clamping groove is formed in the lower portion of the inner wall of the right silencing cavity body. The first partition plate clamping groove is connected with a second partition plate clamping groove, a circle of buckling inserting plate matched with the buckling groove is arranged on the buckling end face of the right noise reduction cavity, a first partition plate matched with the first partition plate clamping groove is arranged on the upper portion of the inner wall of the cavity of the right noise reduction cavity, and the lower end of the first partition plate is connected with a second partition plate matched with the second partition plate clamping groove. The lower end of the first partition plate is further connected with a communicating pipe, and a resonant cavity slit is formed in the communicating pipe. The silencer is simple in structure, the internal flow channel is simplified as much as possible while the low and medium frequency silencing capacity is guaranteed, the silencer can be used for compressors of various models, and the high-frequency silencing performance effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to an air suction muffler for a refrigerator compressor. Background Art

[0002] As the most important component in the entire refrigeration cycle, the performance and noise level of refrigerator compressors largely affect the performance and noise of refrigerators. With the rapid development of the economy, people's growing needs for a better life have gradually changed, and energy-saving, efficient and low-noise refrigerators have gradually become the darlings of the refrigeration equipment market in the new era. How to reduce the noise level of refrigerator compressors has gradually become the research and development focus of the refrigeration industry.

[0003] Airflow noise is one of the main noise sources of compressor noise, among which suction pulsation noise contributes the most to airflow noise. Due to the complexity of the working environment, resistant suction mufflers are widely used in the compressor industry. Figure 3 As shown, in order to achieve a better noise reduction level, most existing intake silencers have complex structures and require multiple parts to be assembled, which is costly and complex. Utility Model Content

[0004] In view of the above technical problems in the related art, the utility model provides an air suction muffler for a refrigerator compressor, which can solve the above problems.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0006] A suction muffler for a refrigerator compressor, comprising a muffler cavity, the muffler cavity comprising a left muffler cavity and a right muffler cavity connected by buckling, the buckling end surface of the left muffler cavity is provided with a circle of buckling grooves, a partition card slot 1 is provided on the upper part of the inner wall of the left muffler cavity, the two ends of the partition card slot 1 extend to the buckling positions of the front and rear sides of the left muffler cavity, the partition card slot 1 is connected to the partition card slot 2, one end of the partition card slot 2 is connected to the middle of the partition card slot 1, and the other end of the partition card slot 2 extends to the The upper bottom surface of the left silencer cavity is connected to an exhaust pipe at the buckling part of the bottom surface of the left silencer cavity, the lower part of the rear side surface of the left silencer cavity is connected to an intake pipe, the buckling end surface of the right silencer cavity is provided with a circle of buckling plug plates matched with the buckling groove, the upper part of the inner wall of the right silencer cavity is provided with a partition 1 matched with the partition slot 1, the lower end of the partition 1 is connected to a partition 2 matched with the partition slot 2, and the lower end of the partition 1 is also connected to a connecting pipe, and a resonance cavity slit is opened on the connecting pipe.

[0007] Furthermore, the silencing cavity is divided into an upper chamber and a lower chamber by the partition plate, and the upper chamber is connected to the outside through the exhaust pipe.

[0008] Furthermore, the lower chamber is divided into a first chamber and a second chamber by the partition plate 2, one end of the connecting tube is located in the first chamber and connected to the upper chamber, the other end of the connecting tube passes through the partition plate 2 and extends to the second chamber, and the resonance cavity slit is connected to the first chamber.

[0009] Furthermore, the second chamber is connected to the outside through the air intake pipe, and the air intake port of the air intake pipe located outside is trumpet-shaped.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and while ensuring the low and medium frequency silencing capabilities, the internal flow channel is simplified as much as possible, and can be used for compressors of various models, and the high frequency silencing performance effect is also good. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be 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 paying creative work.

[0012] The utility model is further described in detail below with reference to the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of a suction muffler for a refrigerator compressor according to an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the partition of the chamber inside the silencing cavity according to the embodiment of the utility model;

[0015] Figure 3 It is a structural schematic diagram of an air suction muffler in the prior art;

[0016] Figure 4 It is a comparison diagram of the muffler volume of the suction muffler of the embodiment of the utility model and the suction muffler of the comparative example of the prior art.

[0017] In the figure:

[0018] 100, left silencer cavity; 110, snap-fit ​​groove; 120, partition slot one; 130, partition slot two; 200, right silencer cavity; 210, partition one; 220, connecting pipe; 221, resonance cavity slit; 300, exhaust pipe; 400, intake pipe; 500, upper chamber; 610, first chamber; 620, second chamber. DETAILED DESCRIPTION

[0019] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0020] like Figure 1-4 As shown, according to the utility model, an air suction muffler for a refrigerator compressor is disclosed, including a muffler cavity, wherein the muffler cavity includes a left muffler cavity 100 and a right muffler cavity 200 connected by snapping, the snapping end face of the left muffler cavity 100 is provided with a circle of snapping grooves 110, and the upper part of the inner wall of the left muffler cavity 100 is provided with a partition card slot 120, and the two ends of the partition card slot 120 extend to the snapping positions of the front and rear sides of the left muffler cavity 100, and the partition card slot 120 is connected to the partition card slot 2 130, one end of the partition card slot 2 130 is connected to the middle part of the partition card slot 120, and the other end of the partition card slot 2 130 extends to At the buckling part of the bottom surface of the left silencer cavity 100, the upper bottom surface of the left silencer cavity 100 is connected to the exhaust pipe 300, the lower part of the rear side surface of the left silencer cavity 100 is connected to the intake pipe 400, the buckling end surface of the right silencer cavity 200 is provided with a circle of buckling plug plates matched with the buckling groove 110, the upper part of the inner wall of the right silencer cavity 200 is provided with a partition 210 matched with the partition card slot 1 120, the lower end of the partition 1 210 is connected to a partition 2 matched with the partition card slot 2 130, and the lower end of the partition 1 210 is also connected to a connecting pipe 220, and a resonance cavity slit 221 is opened on the connecting pipe 220.

[0021] Embodiment 1:

[0022] This patent is in the comparative example ( Figure 3 On the basis of the structure shown in the figure, the middle communicating vessel is cancelled, and a split buckling structure is adopted (wherein the buckling plug plate is inserted into the buckling groove 110, the partition 1 210 is inserted into the partition card groove 120, and the partition 2 is inserted into the partition card groove 2 130, so as to realize the buckling connection between the left muffler cavity 100 and the right muffler cavity 200), the internal flow channel is simplified as much as possible, and the internal space of the muffler is re-divided, such as Figure 4 The comparison of the sound insulation volume is shown in the figure. While ensuring the low and medium frequency sound insulation capability, it can be used for various types of compressors, and compared with the control example, the low and medium frequency characteristic sound insulation effect and the high frequency sound insulation performance effect are better.

[0023] The air enters the second chamber 620 from the air intake pipe 400, then enters the upper chamber 500 through the connecting pipe 220, and is finally discharged from the exhaust pipe 300, wherein the connecting pipe 220 can be connected to the air intake pipe 400, or can maintain a certain distance and offset angle, and a resonance cavity slit 221 is opened on the connecting pipe 220, wherein the resonance cavity slit 221 can be circular, elliptical, special-shaped, etc., and the resonance cavity slit 221 is connected to the first chamber 610, and the Helmholtz resonance effect is used to improve the noise reduction ability of the medium and low frequency characteristics. At the same time, the flow channel between different chambers has the noise reduction effect of the expansion cavity, which can also enhance the noise reduction performance of the characteristic frequency band to a certain extent.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A suction muffler for a refrigerator compressor, comprising a muffler cavity, characterized in that: The silencer cavity comprises a left silencer cavity (100) and a right silencer cavity (200) connected by snapping, the snapping end surface of the left silencer cavity (100) is provided with a circle of snapping grooves (110), the upper part of the inner wall of the left silencer cavity (100) is provided with a partition card slot 1 (120), the two ends of the partition card slot 1 (120) extend to the snapping positions of the front and rear sides of the left silencer cavity (100), the partition card slot 1 (120) is connected to the partition card slot 2 (130), one end of the partition card slot 2 (130) is connected to the middle part of the partition card slot 1 (120), and the other end of the partition card slot 2 (130) extends to the snapping position of the bottom surface of the left silencer cavity (100), The upper bottom surface of the left silencer cavity (100) is connected to an exhaust pipe (300), the lower part of the rear side surface of the left silencer cavity (100) is connected to an air intake pipe (400), the buckling end surface of the right silencer cavity (200) is provided with a circle of buckling plug plates that match the buckling groove (110), the upper part of the chamber inner wall of the right silencer cavity (200) is provided with a partition plate 1 (210) that matches the partition plate slot 1 (120), the lower end of the partition plate 1 (210) is connected to a partition plate 2 that matches the partition plate slot 2 (130), and the lower end of the partition plate 1 (210) is also connected to a connecting pipe (220), and a resonance cavity slit (221) is opened on the connecting pipe (220).

2. The suction muffler for a refrigerator compressor according to claim 1, characterized in that: The muffler cavity is divided into an upper chamber (500) and a lower chamber by the partition plate 1 (210), and the upper chamber (500) is connected to the outside through the exhaust pipe (300).

3. The suction muffler for a refrigerator compressor according to claim 2, characterized in that: The lower chamber is divided into a first chamber (610) and a second chamber (620) by the second partition plate; one end of the connecting tube (220) is located in the first chamber (610) and is connected to the upper chamber (500); the other end of the connecting tube (220) passes through the second partition plate and extends into the second chamber (620); and the resonance cavity slit (221) is connected to the first chamber (610).

4. The suction muffler for a refrigerator compressor according to claim 3, characterized in that: The second chamber (620) is in communication with the outside through the air intake pipe (400); the air intake port of the air intake pipe (400) located outside is trumpet-shaped.

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