Cylinder seat assembly, pump body assembly and refrigerator

Abstract

The present invention provides a cylinder seat assembly, a pump body assembly and a refrigerator. The cylinder seat assembly includes a chamber and a partition, wherein the partition is arranged in the chamber to divide the chamber into silencing chambers with different volumes; and the partition is provided with a through hole that conducts the adjacent silencing chambers. By arranging the partition in the chamber, the chamber is divided into a plurality of adjacent silencing chambers that are connected, and the noise of a plurality of different audio frequencies can be eliminated, thereby reducing the exhaust noise.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigerators, and in particular relates to a cylinder seat assembly, a pump body assembly and a refrigerator. Background Art

[0002] The compressor in the refrigerator is a small piston refrigeration compressor. The specific structure adopts a crank-connecting rod mechanism. The motor drives the crankshaft and then drives the connecting rod and piston to realize the reciprocating motion of the piston. The cylinder seat mainly provides support for the pump body parts and provides a working chamber for the piston. Its load-bearing capacity and operating stability under specific working conditions will have a great impact on the service life of the whole machine, and affect the economy, energy efficiency, vibration and noise of the compressor.

[0003] With the improvement of people's living standards, consumption upgrades have brought huge opportunities and challenges to refrigerator manufacturers. Consumers have higher and higher requirements for noise in ice compressors. Low noise is the ultimate goal pursued by consumers. An exhaust silencer cavity is designed on the cylinder seat, which is mainly used to reduce the vibration and noise of the compressor. The existing refrigeration compressor cylinder seat generally has one or two exhaust silencer cavities connected in series, which has limited noise silencing frequency.

[0004] The prior art discloses a compressor body, in which the cylinder seat in the body is supported by three machine feet, an exhaust silencer cavity is cast as one with the cylinder seat, and the exhaust gas circulation circuit is relatively close, which can effectively reduce the circulation resistance loss, but the gas flows through the cast silencer cavity and is directly discharged through the inner exhaust pipe, which is very likely to cause an increase in local pressure loss, thereby affecting the pressure loss of the entire airflow, and further affecting the efficiency of the whole machine. Although the overall size of the cylinder seat can be reduced, since there is only one exhaust silencer cavity, the sound silencing band is narrow and cannot meet the demand for low noise. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to provide a cylinder seat assembly, a pump body assembly and a refrigerator, which can eliminate noise in multiple audio bands and have a good noise reduction effect.

[0006] In order to solve the above problems, the present invention provides a cylinder seat assembly, including a chamber and a partition, wherein the partition is arranged in the chamber to divide the chamber into silencer chambers with different volumes; the partition is provided with a through hole that connects the adjacent silencer chambers.

[0007] Preferably, the air inlet channel and the air outlet channel of the chamber are communicated with different muffler chambers.

[0008] Preferably, the partition comprises a plurality of sleeve members with different inner diameters, and the plurality of sleeve members are sleeved with gaps therebetween; and the through hole is provided on the wall of the sleeve member.

[0009] Preferably, each of the adjacent sleeve members is provided with a through hole, and one sleeve member is provided with an axial section; one through hole is located on one side of the axial section, and its diameter is perpendicular to the axial section, and the other through hole is located on the other side of the axial section.

[0010] Preferably, one of the through holes is located at the upper half of the sleeve member, and the other through hole is located at the lower half of the sleeve member.

[0011] Preferably, the partition member further comprises a partition plate with holes, and the partition plate is in sealing contact with the end surface of the sleeve member.

[0012] Preferably, the chamber comprises a trough body, a silencer cover and a screw, the silencer cover is buckled on the trough body, and the screw passes through the silencer cover and is threadedly connected to the bottom of the trough body.

[0013] Preferably, the groove body wall and the silencer cover are both provided with air holes, and the air holes are connected to the air inlet channel or the air outlet channel of the chamber.

[0014] Preferably, the outer diameter of the screw is smaller than the hole diameter on the partition.

[0015] Preferably, the cylinder base assembly further comprises a resonance cylinder, and the resonance cylinder is sleeved in the sleeve member.

[0016] According to another aspect of the present invention, a pump body assembly is provided, comprising the cylinder base assembly as described above.

[0017] According to yet another aspect of the present invention, a refrigerator is provided, comprising the pump assembly as described above.

[0018] The present invention provides a cylinder seat assembly, comprising a chamber and a partition, wherein the partition is arranged in the chamber to divide the chamber into silencing chambers with different volumes; and the partition is provided with a through hole that connects adjacent silencing chambers. By arranging the partition in the chamber, the chamber is divided into a plurality of adjacent silencing chambers that are connected, and noises of a plurality of different audio frequencies can be eliminated, thereby reducing exhaust noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 An exploded view of a cylinder base assembly according to an embodiment of the present invention;

[0020] Figure 2 A front cross-sectional view of a cylinder base assembly according to an embodiment of the present invention;

[0021] Figure 3 It is a left side cross-sectional view of a cylinder base assembly according to an embodiment of the present invention;

[0022] Figure 4Another structural schematic diagram of a cylinder base assembly according to an embodiment of the present invention;

[0023] Figure 5 A front cross-sectional view of another structure of a cylinder base assembly according to an embodiment of the present invention;

[0024] Figure 6 It is a cross-sectional view of a pump body in an air conditioning unit according to an embodiment of the present invention.

[0025] The reference numerals are as follows:

[0026] 1. Cylinder seat; 11. Exhaust through hole; 2. Exhaust silencer chamber; 21. Outer sleeve; 211. Outer sleeve through hole; 22. Inner sleeve; 221. Inner sleeve through hole; 23. Partition; 231. Partition through hole; 24. Silencer cover; 241. Silencer cover through hole; 25. Screw; 26. Resonance cylinder; 3. Connecting rod; 4. Crankshaft; 5. Piston; 6. Motor. DETAILED DESCRIPTION

[0027] See also Figures 1 to 5 As shown, according to an embodiment of the present invention, a cylinder seat assembly is arranged on a cylinder seat 1, comprising a chamber and a partition, wherein the partition is arranged in the chamber to divide the chamber into silencing chambers of different volumes; and the partition is provided with a through hole that connects adjacent silencing chambers.

[0028] By adding partitions in the chamber of the cast exhaust silencer chamber 2, the exhaust silencer chamber 2 is divided into a plurality of silencer chambers while the volume of the exhaust silencer chamber 2 remains basically unchanged. The volumes of the plurality of silencer chambers are different and adjacent ones are connected to each other, so that the exhaust silencer chamber 2 can eliminate noises of multiple frequency bands, the silencer band is widened, and the exhaust noise is reduced.

[0029] The air inlet and outlet channels of the chamber are connected to different silencer chambers, and the two adjacent silencer chambers are connected through the through holes on the partition, which prolongs the time that the gas stays in the exhaust silencer chamber 2, resulting in a lower frequency of exhaust gas fluctuations, thereby achieving the purpose of reducing exhaust noise.

[0030] The partition includes a plurality of sleeves with different inner diameters, and the plurality of sleeves are sleeved with gaps; the through hole is provided on the wall of the sleeve. The chamber is divided along the radial direction of the sleeve by the plurality of sleeves, so that a plurality of silencing chambers with different volumes can be formed to eliminate noises of multiple frequency bands. In addition, the gas flows through the through holes on the wall of the sleeve, which relatively prolongs the time in the exhaust silencing chamber 2, so that the frequency of the exhaust gas fluctuation is reduced, and the purpose of reducing the exhaust noise is also achieved.

[0031] In order to better prolong the residence time of the gas in the exhaust silencer chamber 2, two adjacent sleeves are provided with a through hole on each sleeve, and an axial section is provided on one sleeve; one through hole is located on one side of the axial section, and the diameter of the through hole is perpendicular to the axial section, and the other through hole is located on the other side of the axial section; and / or, one through hole is located in the upper half of the sleeve, and the other through hole is located in the lower half of the sleeve. The time in the exhaust silencer chamber 2 is relatively prolonged, so that the fluctuation frequency of the discharged gas is reduced, and the purpose of reducing the exhaust noise is also achieved.

[0032] The partition also includes a perforated partition 23, which is in sealing contact with the end face of the sleeve. By using the partition 23 and the sleeve in combination, the chamber is divided into silencing chambers of different volumes by the partition 23 along the axial direction of the sleeve, so that the noise can be eliminated in both the axial and radial directions of the sleeve, and the noise reduction effect is good.

[0033] The chamber includes a tank body, a muffler cover 24 and screws 25. The muffler cover 24 is buckled on the tank body, and the screws 25 pass through the muffler cover 24 and are threadedly connected to the bottom of the tank body. The chamber is assembled with movable connecting parts, which is convenient for disassembly and assembly, as well as replacement and maintenance of internal parts.

[0034] The trough wall and the muffler cover 24 are both provided with a muffler cover through hole 241, and the muffler cover through hole 241 is connected to the air inlet or outlet of the chamber. By arranging the air inlet or outlet on the trough body and the muffler cover 24, the residence time of the gas in the chamber is prolonged, so that the frequency of the exhaust gas fluctuation is reduced, and the purpose of reducing the exhaust noise is also achieved.

[0035] The outer diameter of the screw 25 is smaller than the hole diameter on the partition 23, and the screw 25 directly passes through the hole on the partition 23 to be connected with the bottom of the tank body, avoiding the need to set another hole.

[0036] The cylinder base assembly also includes a resonance cylinder 26, which is sleeved in the sleeve member. Figure 4 and 5 As shown, an exhaust through hole 231 is additionally added to the partition 23, and no through hole is set on the resonance tube 26. The entire silencer chamber is divided into a resonance chamber and two silencer chambers. Compared with the traditional single casting silencer chamber with the same volume, not only the silencer band is widened, but the resonance chamber can also eliminate the noise peak at a specific frequency point, thereby further reducing the exhaust noise while meeting the air intake efficiency.

[0037] Another embodiment of the present invention provides a pump body assembly, comprising the cylinder base assembly as described above.

[0038] The pump body assembly of the present invention is provided with an exhaust through hole 11 (aperture is 3mm) on the end face of the cylinder head, and two sleeves are provided in the exhaust muffler chamber 2. The outer sleeve 21 sheet metal is provided with an outer sleeve through hole 211 (aperture is 3mm, wall thickness is 1mm-1.5mm), and the inner sleeve 22 sheet metal is also provided with an inner sleeve through hole 221 (aperture is 2mm, wall thickness is 1mm-1.5mm), and the muffler cover 24 is provided with an inner exhaust pipe hole (aperture is 3.2mm). The gas is compressed by the cylinder and becomes a high-temperature and high-pressure gas, enters the high-pressure chamber of the cylinder head, and then enters along the exhaust through hole 11 on the end face of the cylinder head of the cylinder seat 1, and then enters a muffler chamber from the outer sleeve through hole 211, and then enters the second muffler chamber from the inner sleeve through hole 221, and finally enters the third muffler chamber, and is discharged into the inner exhaust pipe from the inner exhaust pipe hole. When the size and length of the inner exhaust pipe are the same, the high-temperature and high-pressure gas is discharged from the casting silencer chamber, and it takes a long time for it to enter the inner exhaust pipe, thereby reducing the fluctuation frequency of the gas discharged from the exhaust silencer chamber 2, thereby reducing noise.

[0039] Compared with the traditional single cast silencer chamber of the same volume, the exhaust silencer chamber 2 of the pump body assembly of the present invention is divided into three expansion silencer chambers of different volumes. On the one hand, it increases the silencer band, and on the other hand, it extends the gas circulation circuit, increases the gas transmission loss, and thus reduces the exhaust noise, achieving a good silencer effect.

[0040] Another embodiment of the present invention is an air conditioner, comprising the pump assembly as described above. Specifically, the pump assembly is provided in the pump body of the air conditioner, and the pump body further comprises a connecting rod 3 , a crankshaft 4 , a piston 5 and a motor 6 .

[0041] By adding a partition 23 and inner and outer sleeve sheet metal parts at the casting silencer chamber, the casting silencer chamber is divided into multiple silencer chambers with different volumes. Compared with the traditional first-stage exhaust silencer chamber 2, the silencer band of the silencer chamber is increased and the silencer band is widened. In addition, through the through holes of the inner and outer sleeve sheet metal parts, the time consumed by the gas to enter the inner exhaust pipe is extended, and the fluctuation frequency of the gas discharged from the exhaust silencer chamber 2 is reduced, thereby reducing the exhaust noise.

[0042] It is easy for those skilled in the art to understand that the above-mentioned implementation modes can be freely combined and superimposed without conflict.

[0043] 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 and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A cylinder seat assembly, characterized in that: It comprises a chamber and a separator, wherein the separator is arranged in the chamber to divide the chamber into silencing chambers of different volumes; the separator is provided with a through hole that communicates with adjacent silencing chambers; The separator comprises a plurality of sleeve members with different inner diameters, and the plurality of sleeve members are sleeved with gaps therebetween; the through hole is provided on the wall of the sleeve member; The partition member further comprises a perforated partition plate (23), wherein the partition plate (23) is in sealing contact with the end surface of the sleeve member; The chamber comprises a trough body, a silencer cover (24) and a screw (25), wherein the silencer cover (24) is buckled on the trough body, and the screw (25) passes through the silencer cover (24) and is threadedly connected to the bottom of the trough body; Each of the adjacent sleeve members is provided with a through hole, and one sleeve member is provided with an axial section; one through hole is located on one side of the axial section, and its diameter is perpendicular to the axial section, and the other through hole is located on the other side of the axial section; One of the through holes is located at the upper half of the sleeve member, and the other through hole is located at the lower half of the sleeve member.

2. The cylinder block assembly according to claim 1, characterized in that: The air inlet channel and the air outlet channel of the chamber are communicated with different muffler chambers.

3. The cylinder block assembly according to claim 1, characterized in that: The groove body wall and the muffler cover (24) are both provided with air holes, and the air holes are communicated with the air inlet channel or the air outlet channel of the chamber.

4. The cylinder block assembly according to claim 1, characterized in that: The outer diameter of the screw (25) is smaller than the hole diameter on the partition (23).

5. The cylinder block assembly according to claim 1, characterized in that: The cylinder seat assembly also includes a resonance cylinder (26), and the resonance cylinder (26) is sleeved in the sleeve member.

6. A pump assembly, characterized in that: It comprises a cylinder seat assembly as claimed in any one of claims 1 to 5.

7. A refrigerator, characterized in that: Comprising the pump body assembly as claimed in claim 6.

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