CN215979782U

CN215979782U - Silencer and compressor

Info

Publication number: CN215979782U
Application number: CN202122573252.1U
Authority: CN
Inventors: 张路; 张洋洋; 郑星炜; 汪坤; 黄刚
Original assignee: Anhui Meizhi Compressor Co Ltd
Current assignee: Anhui Meizhi Compressor Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-03-08
Anticipated expiration: 2031-10-25

Abstract

The utility model belongs to the technical field of compressors, and particularly relates to a silencer and a compressor. The silencer comprises a gas pipe arranged outside the shell, the gas pipe is provided with a connecting portion used for being embedded into the accommodating groove of the cylinder cover, a plurality of bulges are arranged on the outer wall surface of the connecting portion at intervals, and the bulges are used for abutting against the groove wall of the accommodating groove so that a heat insulation gap is formed between the outer wall surface of the connecting portion and the groove wall. The groove wall of the containing groove is only contacted with the protrusion on the connecting part, so that the contact area between the connecting part and the groove wall is reduced, namely the contact area when the gas conveying pipe is connected with the cylinder cover is reduced. Like this, the heat that conducts to the gas-supply pipe from the cylinder head reduces, and the heat absorption intensification problem of the refrigerant that gets into the muffler can effectively be improved to can effectively avoid the refrigerant overheated to lead to pressure too big, pulsation reinforcing, provide the guarantee for the amortization noise reduction effect of guaranteeing the muffler, can also avoid the refrigerant intensification to lead to compressor refrigeration efficiency to reduce simultaneously.

Description

Silencer and compressor

Technical Field

The utility model belongs to the technical field of compressors, and particularly relates to a silencer and a compressor.

Background

The muffler is one of the key parts for reducing the operating noise of the compressor, and is usually connected to the suction port or the exhaust port of the compressor cylinder to continuously suck or discharge the refrigerant, thereby reducing the suction noise or the exhaust noise of the refrigerant. Generally, the gas pipe of the silencer is connected with the cylinder cover through a valve plate, a valve plate through hole is formed in the valve plate, and the gas pipe of the silencer is communicated with the cavity of the cylinder through the valve plate through hole. Therefore, the silencer is connected and contacted with the cylinder cover and the valve plate, a large amount of heat can be generated when the refrigerant is compressed in the cylinder, and the heat can be conducted to a gas pipe of the silencer through the cylinder cover, so that the temperature of the refrigerant in the silencer is increased, the pressure of the refrigerant is increased, the pulsation is enhanced, and the noise reduction effect of the silencer is deteriorated; in addition, the temperature rise of the refrigerant in the muffler affects the refrigeration efficiency of the compressor, resulting in a reduction in the compressor energy efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a silencer and a compressor, and aims to solve the technical problems that in the prior art, the temperature of a refrigerant in the silencer is increased due to the fact that heat is conducted from a cylinder cover to the silencer, the noise reduction effect of the silencer is poor, and the refrigeration efficiency of the compressor is reduced.

The technical scheme adopted by the utility model is as follows: the utility model provides a silencer, including the casing that is equipped with the amortization chamber to and locate the casing outside and with the gas-supply pipe of amortization chamber intercommunication, the gas-supply pipe has the connecting portion that are used for imbedding in the storage tank of cylinder head, the outer wall interval of connecting portion is equipped with a plurality of archs, the arch is used for offsetting with the cell wall of storage tank to form thermal-insulated clearance between the outer wall of messenger connecting portion and the cell wall.

In some embodiments, the connecting portion has a first side wall, a second side wall and a third side wall, and the first side wall, the second side wall and the third side wall are provided with protrusions.

In some embodiments, a plurality of protrusions are respectively disposed on the first side wall, the second side wall and the third side wall, and the plurality of protrusions are uniformly spaced.

In some embodiments, the protrusions are ribs and/or bumps.

In some embodiments, the protrusions are raised lines having an arc-shaped cross section, and/or the protrusions are hemispherical bumps.

In some embodiments, the first side wall is opposite to the second side wall, and the first side wall and/or the second side wall is/are further provided with a guide strip in a protruding manner, and the guide strip can be inserted into a guide groove formed in the groove wall in a fitting manner.

In some embodiments, the gas pipe has the gas outlet that is used for with the valve plate through-hole intercommunication of valve plate, and the marginal part of gas outlet is equipped with the boss, and the boss can the adaptation insert to the valve plate through-hole in, and the outer wall face of boss can laminate mutually with the pore wall of valve plate through-hole.

In some embodiments, the projection length L of the boss relative to the air outlet₁Satisfies the following conditions: l/3 is less than or equal to L₁L, wherein L is the length of the hole wall of the through hole of the valve plate.

In some embodiments, the thickness of the boss in the radial direction of the air outlet is smaller than the thickness of the pipe wall of the air conveying pipe, the boss protrudes from the inner edge of the air outlet, the outer edge of the air outlet is provided with a step, and the step can be matched and abutted against the hole edge of the through hole of the valve plate.

In some embodiments, the silencer further comprises a silencing pipe and a partition board, the silencing pipe and the partition board are arranged in the silencing cavity, the partition board divides the silencing cavity into a first cavity and a second cavity, the shell is provided with an airflow inlet and an airflow outlet, the airflow inlet is communicated with the first cavity, the airflow outlet is communicated with the air pipe, the silencing pipe is communicated with the airflow inlet and the airflow outlet, the silencing pipe is further provided with a first through hole and a second through hole, the first through hole is communicated with the first cavity, and the second through hole is communicated with the second cavity.

One or more technical solutions in the silencer provided by the embodiment of the present invention have at least one of the following technical effects: the outer wall surface of the connecting part of the gas pipe is provided with the bulge, when the connecting part is embedded into the accommodating groove connected to the cylinder cover, the bulge is abutted against the groove wall of the accommodating groove, and therefore a heat insulation gap is formed between the outer wall surface of the connecting part and the groove wall of the accommodating groove. Therefore, the groove wall of the accommodating groove is only contacted with the protrusion on the connecting part, the contact area between the connecting part and the groove wall of the accommodating groove is reduced, namely, the contact area when the gas pipe is connected with the cylinder cover is reduced, and the heat dissipation at the connecting position of the gas pipe and the cylinder cover can be improved due to the air flow in the heat insulation gap. Like this, the heat that conducts to the gas-supply pipe from the cylinder head reduces, and the heat absorption intensification problem of the refrigerant that gets into the muffler can effectively be improved to can effectively avoid the refrigerant overheated to lead to pressure too big, the pulsation reinforcing, for the amortization noise reduction effect who ensures the muffler provides the guarantee, can also avoid the refrigerant intensification to lead to compressor refrigeration efficiency to reduce simultaneously, ensure that the compressor that uses the muffler of this application has better refrigeration effect.

The other technical scheme of the utility model is as follows: the utility model provides a compressor, including cylinder head, valve plate and foretell muffler, the cylinder head is equipped with the storage tank, and the connecting portion of gas-supply pipe are inlayed and are located in the storage tank, and the outer wall interval of connecting portion is equipped with a plurality of archs, and the arch offsets with the cell wall of storage tank to form thermal-insulated clearance between the outer wall of connecting portion and the cell wall of storage tank, the valve plate is equipped with the valve plate through-hole, and the valve plate is connected with the cylinder head in order to be connected the connecting portion chucking in the storage tank, and the gas outlet and the valve plate through-hole of gas-supply pipe are linked together.

One or more technical solutions in the compressor provided by the embodiment of the present invention have at least one of the following technical effects: the utility model provides a compressor, through using foretell muffler, the muffler can not lead to refrigerant high temperature, pulsation reinforcing from the cylinder head excessive heat absorption, and the amortization noise reduction effect of muffler is better to, can also effectively avoid leading to compressor refrigeration efficiency to reduce because of the refrigerant intensifies, the compressor has better refrigeration effect, and user experience is better.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a muffler according to an embodiment of the present invention;

FIG. 2 is a schematic view of the assembly of the muffler with the cylinder head and the valve plate shown in FIG. 1;

FIG. 3 is a partially exploded view of the structure shown in FIG. 2;

FIG. 4 is a schematic view of an assembly structure of the muffler and the cylinder head shown in FIG. 1;

FIG. 5 is a schematic view of the gas delivery tube portion of the muffler shown in FIG. 1;

FIG. 6 is a schematic view of a gas pipe portion of a muffler according to another embodiment of the present invention;

FIG. 7 is another perspective view of the structure shown in FIG. 3;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 9 is an enlarged schematic view at A of FIG. 8;

FIG. 10 is an exploded view of the silencer of FIG. 1 (with the protrusions being raised);

fig. 11 is a partial structural view of the muffler shown in fig. 1.

In the figures, the various figures are mainly marked:

10. a muffler; 11. a housing; 111. an airflow inlet; 112. an airflow outlet; 113. a bottom case; 114. an upper cover; 12. a sound-deadening chamber; 121. a first chamber; 122. a second chamber; 13. a gas delivery pipe; 131. a connecting portion; 132. an air outlet; 1311. a protrusion; 1312. a first side wall; 1313. a second side wall; 1314. a third side wall; 1315. a guide strip; 1316. a fourth side wall; 132. an air outlet; 1321. a boss; 1322. a step; 14. a partition plate; 15. a sound-deadening tube; 151. a first through hole; 152. a second through hole; 16. a connecting pipe; 20. a cylinder head; 21. a containing groove; 211. a thermally insulating gap; 212. a guide groove; 30. a valve plate; 31. a valve plate through hole; 311. a stop structure.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to fig. 1 to 11 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. The appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like in various places in the specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 5 and 8, fig. 1 is a schematic structural diagram of a muffler according to an embodiment of the present invention, fig. 2 is a schematic assembly structural diagram of the muffler, a cylinder head and a valve plate shown in fig. 1, fig. 3 is a schematic partially exploded view of the structure shown in fig. 2, fig. 4 is a schematic assembly structural diagram of the muffler and the cylinder head shown in fig. 1, fig. 5 is a schematic structural diagram of a gas transmission pipe portion of the muffler shown in fig. 1, and fig. 8 is a sectional view taken along a line a-a in fig. 2.

As shown in fig. 1, the embodiment of the present invention provides a muffler 10, wherein the muffler 10 is suitable for being installed at a suction section of a compressor for performing noise reduction when a refrigerant is sucked into a compression chamber of the compressor, and is also suitable for being installed at a discharge section of the compressor for performing noise reduction when the refrigerant is discharged from the compression chamber of the compressor, and in addition, is also suitable for other parts of the compressor requiring noise reduction.

Specifically, as shown in fig. 1 to 3, the muffler 10 of the present embodiment includes a housing 11 and an air pipe 13 disposed outside the housing 11, wherein the housing 11 is provided with a sound-deadening chamber 12 inside, as shown in fig. 8, one end of the air pipe 13 is communicated with the sound-deadening chamber 12, and the other end extends to the outside of the housing 11, and when in specific use, the air pipe 13 is connected with the cylinder head 20 of the compressor under the cooperation of the valve plate 30.

Specifically, as shown in fig. 2 and 3, the cylinder head 20 is provided with an accommodating groove 21, the air pipe 13 is provided with a connecting portion 131 capable of being embedded into the accommodating groove 21 in an adaptive manner, an air outlet 132 of the air pipe 13 is arranged back to the connecting portion 131, during assembly, the connecting portion 131 of the air pipe 13 is embedded into the accommodating groove 21 of the cylinder head 20, the air outlet 132 of the air pipe 13 deviates from the cylinder head 20, the valve plate 30 is connected with the cylinder head 20, the end portion, back to the cylinder head 20, of the air pipe 13 is located outside the accommodating groove 21 and abutted against the valve plate 30, the air pipe 13 is clamped by the valve plate 30 and the cylinder head 20 in a matched manner, so that the air pipe 13 is reliably connected to the cylinder of the compressor, and the air pipe 13 is prevented from shaking relative to the cylinder under the impact of refrigerant. Meanwhile, the air outlet 132 of the air pipe 13 is arranged at the end part of the air pipe 13 abutting against the valve plate 30, and the air outlet 132 of the air pipe 13 is communicated with the valve plate through hole 31 formed in the valve plate 30, so that a popular channel is provided for the refrigerant.

In the related art, because the gas pipe 13 is a part of the gas circuit of the compressor, the refrigerant can generate large impact on the gas pipe 13 when flowing through the gas pipe 13, so that the connection part 131 of the gas pipe 13 and the accommodating groove 21 are generally connected in an interference insertion mode, and the gas pipe 13 is prevented from shaking in the accommodating groove 21 to impact the cylinder cover 20 to damage the gas pipe 13 and the cylinder cover 20.

In the present embodiment, as shown in fig. 1, 3 and 4, the outer wall surface of the connecting portion 131 of the gas pipe 13 is provided with a plurality of protrusions 1311 at intervals, and when the connecting portion 131 is fitted into the accommodating groove 21 of the cylinder head 20, the protrusions 1311 abut against the groove wall of the accommodating groove 21, so that the outer wall surface of the connecting portion 131 is spaced from the groove wall of the accommodating groove 21, and the heat insulation gap 211 is formed therebetween. In this way, the provision of the projection 1311 can reduce the contact area between the connecting portion 131 and the groove wall of the accommodating groove 21, and thus reduce the contact area between the gas pipe 13 and the cylinder head 20, as compared with the case where the outer wall surface of the connecting portion 131 completely abuts against the groove wall of the accommodating groove 21.

In this way, in the muffler 10 according to the embodiment of the present invention, the protrusion 1311 is provided on the outer wall surface of the connecting portion 131 of the gas pipe 13, so that when the connecting portion 131 is inserted into the accommodating groove 21 connected to the cylinder head 20, the protrusion 1311 abuts against the groove wall of the accommodating groove 21, and thus the heat insulation gap 211 is formed between the outer wall surface of the connecting portion 131 and the groove wall of the accommodating groove 21. In this way, the groove wall of the accommodating groove 21 is only in contact with the protrusion 1311 on the connecting portion 131, the contact area between the connecting portion 131 and the groove wall of the accommodating groove 21 is reduced, that is, the contact area when the air pipe 13 is connected with the cylinder head 20 is reduced, and the air flow in the heat insulation gap 211 can also improve the heat dissipation at the connecting position of the air pipe 13 and the cylinder head 20. Like this, the heat that conducts to gas-supply pipe 13 from cylinder head 20 reduces, and the heat absorption intensification problem of the refrigerant that gets into muffler 10 can effectively be improved to can effectively avoid the refrigerant overheated to lead to pressure too big, the pulsation reinforcing, for guaranteeing the amortization noise reduction effect of muffler 10 provides the guarantee, can also avoid the refrigerant intensification to lead to compressor refrigeration efficiency to reduce simultaneously, ensure that the compressor that uses muffler 10 of this application has better refrigeration effect.

In another embodiment of the present invention, as shown in fig. 3, 4 and 5, the connecting portion 131 of the gas pipe 13 is substantially cylindrical, and correspondingly, the accommodating groove 21 provided in the cylinder head 20 is a cylindrical groove. The connecting portion 131 has a first sidewall 1312, a second sidewall 1313 and a third sidewall 1314, wherein when the connecting portion 131 is inserted into the accommodating groove 21, the first sidewall 1312 faces one sidewall of the accommodating groove 21, the second sidewall 1313 faces the other sidewall of the accommodating groove 21, the third sidewall 1314 faces the bottom wall of the accommodating groove 21, and a first end of the air pipe 13 abutting against the valve plate 30 is away from the third sidewall 1314. The protrusions 1311 are respectively disposed on the first, second and

third sidewalls

1312, 1313 and 1314, so that the thermal insulation gap 211 is formed between the connection portion 131 and the bottom of the receiving groove 21 and between the left and right sidewalls, respectively, thereby providing better thermal insulation and heat dissipation effects.

It is understood that in some embodiments, the connecting portion 131 further has a fourth sidewall 1316, wherein the fourth sidewall 1316 is disposed opposite to the top of the receiving slot 21, and the above-mentioned protrusion 1311 may be disposed on the fourth sidewall 1316 to ensure that the fourth sidewall 1316 is spaced apart from the top of the receiving slot 21 and form the thermal insulation gap 211.

In other embodiments, different from the above embodiments, as shown in fig. 3 and 4, the first side wall 1312 and the second side wall 1313 are disposed opposite to each other, the right guide strip 1315 is further protruded on the first side wall 1312, the second side wall 1313 is further provided with a guide strip 1315, or both the first side wall 1312 and the second side wall 1313 are further provided with a guide strip 1315, the wall of the accommodating groove 21 is provided with a guide groove 212 for the guide strip 1315 to be inserted into, and the connecting portion 131 can be inserted into the accommodating groove 21 under the guiding cooperation of the guide strip 1315 and the guide groove 212. In addition, when the connection portion 131 is embedded in the receiving groove 21, the guide strip 1315 is limited in the guide groove 212, and can also limit the connection portion 131, at this time, the above-mentioned protrusion 1311 does not need to be disposed on the fourth side wall 1316 of the connection portion 131, and the position of the guide strip 1315 is designed, so that the heat insulation gap 211 is formed between the fourth side wall 1316 and the groove top of the receiving groove 21 at the same interval, and compared with the scheme that the protrusion 1311 is disposed on the fourth side wall 1316, and the position is limited to the top of the receiving groove 21 by the guide strip 1315, the heat insulation gap 211 is formed between the fourth side wall 1316 and the groove top of the receiving groove 21.

In a specific embodiment, the first side wall 1312, the second side wall 1313 and the third side wall 1314 are respectively provided with a plurality of protrusions 1311, and the protrusions 1311 are uniformly spaced, so that the force applied to the cylinder head 20 by the gas pipe 13 is uniformly dispersed, and the cylinder head 20 is prevented from being structurally damaged due to concentrated stress at a certain position.

In another embodiment of the present invention, as shown in fig. 1 and 5, the protrusion 1311 is a convex strip having a certain extending length, and the extending direction of the convex strip may be parallel to the embedding direction of the connecting portion 131 during assembling, or may not be parallel.

In the present embodiment, as shown in fig. 4, in order to further reduce the contact area between the outer wall surface of the connecting portion 131 and the groove wall of the accommodating groove 21, a protrusion having an arc-shaped cross section may be used, so that the contact between the protrusion and the groove wall is a line contact, and the contact area is further reduced compared to a surface contact.

In other embodiments, as shown in fig. 6, fig. 6 is a schematic structural diagram of a gas pipe portion of a silencer according to another embodiment of the present invention.

Different from the above embodiments, in the present embodiment, the protrusions 1311 are protruding points, and a plurality of protruding points are arranged in an array, so that a plurality of points are formed between the outer wall surface of the connecting portion 131 and the wall surface of the receiving groove 21, thereby ensuring that the air pipe 13 cannot shake relative to the cylinder head 20 and ensuring the formation of the heat insulation gap 211. Of course, the plurality of bumps may be irregularly arranged, and the impact force applied to the cylinder head 20 from the connecting portion 131 may be effectively dispersed.

In this embodiment, as shown in fig. 6, in order to further reduce the contact area between the outer wall surface of the connecting portion 131 and the groove wall of the accommodating groove 21, a hemispherical protrusion may be used, the contact point area between the hemispherical protrusion and the groove wall is the smallest, the contact area is the smallest, and the heat insulation effect is the best.

It is understood that in other embodiments, the convex strips and the convex points may be provided on the outer wall surface of the connecting portion 131.

Please refer to fig. 7 to 9 together, wherein fig. 7 is another view of the structure shown in fig. 3, and fig. 9 is an enlarged view of a point a in fig. 8.

In another embodiment of the present invention, as shown in fig. 1, 8 and 9, the air pipe 13 has an air outlet 132 for communicating with the valve plate through hole 31 of the valve plate 30, specifically, in this embodiment, the air outlet 132 is disposed away from the cylinder head 20, one end of the air outlet 132 is abutted against the valve plate 30, and the valve plate 30 cooperates with the cylinder head 20 to clamp the air pipe 13.

In this embodiment, the edge of the air outlet 132 is convexly provided with a boss 1321 along the center line of the air outlet 132, wherein, when the air pipe 13 is assembled with the valve plate 30, the boss 1321 can be fittingly inserted into the valve plate through hole 31 of the valve plate 30, and the outer wall surface of the boss 1321 can be attached to the hole wall of the valve plate through hole 31.

Thus, because the air pipe 13 is generally a plastic pipe or a rubber pipe, and the valve plate 30 needs to be a metal plate with higher strength to meet the strength requirement, such as a metal plate or cast iron, and thus, along the center line direction of the air outlet 132, the boss 1321 is arranged at the edge of the air outlet 132 of the air pipe 13, the boss 1321 is adapted to be inserted into the valve plate through hole 31, and for the valve plate through hole 31, the hole wall is partially or completely replaced by the boss 1321, so that the contact area between the refrigerant and the hole wall of the valve plate through hole 31 is reduced in the process that the refrigerant flows through the valve plate through hole 31, and meanwhile, because the heat conductivity of the boss 1321 is lower than that of the original valve plate 30 material, the heat absorbed by the refrigerant flowing through the valve plate through hole 31 can be reduced, which is helpful for reducing the heat conduction from the valve plate 30 to the refrigerant. Moreover, when the boss 1321 is inserted into the valve plate through hole 31, the outer wall surface of the boss is attached to the inner wall of the valve plate through hole 31, and no gap exists between the boss 1321 and the inner wall of the valve plate through hole 31, so that the refrigerant is prevented from entering the boss and affecting the connection stability of the gas pipe 13 and the valve plate 30.

In some embodiments, the boss 1321 may be an annular boss shaped to fit the shape of the air outlet 132, as shown in fig. 1 and 9. Of course, in other embodiments, the boss 1321 may have other shapes or other arrangements, for example, a plurality of circular arc-shaped bosses surrounding the air outlet 132.

In some embodiments, as shown in FIG. 9, the protrusion length L of the boss 1321 relative to the air outlet 132₁Satisfies the following conditions: l/3 is less than or equal to L₁< L, where L is the hole wall length of the valve plate through hole 31. Therefore, the end part of the boss 1321 departing from the gas pipe 13 is positioned inside the valve plate through hole 31, on one hand, the stop structure 311 can be arranged on the hole wall of the valve plate through hole 31 to be abutted against the end part of the boss 1321, and therefore, the gas pipe 13 can be clamped by the valve plate 30 and the cylinder cover 20 in a matching way; on the other hand, the length of the boss 1321 exceeds one third of the length of the hole wall of the valve plate through hole 31, so that the boss 1321 is ensured to have a sufficiently long insertion depth, and the connection strength of the gas pipe 13 and the valve plate 30 is ensured while the heat conduction is reduced.

In other embodiments, as shown in fig. 7 and 9, the thickness of the boss 1321 is smaller than the wall thickness of the air delivery pipe 13 along the radial direction of the air outlet 132, the boss 1321 protrudes from the inner edge portion of the air outlet 132, and the outer edge portion of the air outlet 132 is formed with a step 1322, and the step 1322 can be adapted to abut against the hole edge of the valve plate through hole 31. Thus, the outer edge of the boss 1321 provided at the air outlet 132 is formed with a step 1322, and the step 1322 abuts against the hole edge of the valve plate through hole 31, so that the valve plate 30 and the cylinder head 20 are fitted and clamped to the air pipe 13. At this time, the length L of the boss 1321₁May not be limited by the length L of the valve plate through hole 31, for example, the length L of the boss 1321 may be set₁Is greater than or equal to the length L of the valve plate through hole 31 to lead the valve plate to passThe wall of the hole 31 is completely covered by the boss 1321, so that the refrigerant can not contact with the wall of the valve plate through hole 31 when passing through the valve plate through hole 31, thereby realizing heat insulation to the maximum extent and reducing the heat conduction from the valve plate 30 to the refrigerant.

Referring to fig. 10 and 11 together, fig. 10 is an exploded view of the silencer shown in fig. 1 (the protrusions are bumps in the drawing), and fig. 11 is a partial structure view of the silencer shown in fig. 1.

In another embodiment of the present invention, as shown in fig. 1, 10 and 11, the muffler 10 further includes a partition 14, the housing 11 includes a bottom shell 113 and an upper cover 114, the bottom shell 113 and the upper cover 114 are enclosed to form the muffling chamber 12, the partition 14 is disposed in the muffling chamber 12, and peripheral side walls of the partition 14 abut against inner walls of the bottom shell 113 and the upper cover 114, so as to partition the muffling chamber 12 into the second chamber 122 of the first chamber 121. Wherein, the partition 14 can be vertically arranged, and the first chamber 121 and the second chamber 122 are positioned at the left and right sides of the partition 14, as shown in fig. 11; alternatively, the partition 14 may be disposed laterally, and the first chamber 121 and the second chamber 122 are disposed on both upper and lower sides (not shown) of the partition 14. The bottom shell 113 is provided with an air inlet 111, the air inlet 111 is communicated with the first chamber 121, the upper cover 114 is provided with an air outlet 112, the air pipe 13 is arranged on the upper cover 114 and communicated with the air outlet 112, and specifically, the air pipe 13 can be integrally protruded from the air outlet 112 to the upper cover 114.

In this embodiment, airflow inlet 111 is used for connecting pipe 16, and when the muffler 10 of this embodiment set up in the section of breathing in of compressor, on the gas circuit of compressor, through the refrigerant export of the preceding one-level structure of connecting pipe 16 connection cylinder, at this moment, gas pipe 13 is the outlet duct of muffler 10, and connecting pipe 16 corresponds the outlet duct that is muffler 10, and the refrigerant gets into the compression chamber of cylinder through gas pipe 13 after the amortization of muffler 10. And when the muffler 10 of this embodiment set up in the discharge section of compressor, on the gas circuit of compressor, the refrigerant entry of one-level structure behind the cylinder is connected through foretell connecting pipe 16 to muffler 10, and at this moment, the refrigerant of following the cylinder exhaust passes through gas-supply pipe 13 and gets into in muffler 10 and carry out the amortization, and the back is discharged through connecting pipe 16 again, and gas-supply pipe 13 corresponds the intake pipe that is muffler 10, and the correspondence of connecting pipe 16 is the outlet duct of muffler 10.

Further, in this embodiment, as shown in fig. 10 and 11, the muffler 10 further includes a silencing pipe 15, the silencing pipe 15 is disposed in the silencing chamber 12, the silencing pipe 15 is communicated with the airflow inlet 111 and the airflow outlet 112, the silencing pipe 15 is further provided with a first through hole 151 and a second through hole 152, the first through hole 151 is communicated with the first chamber 121, and the second through hole 152 is communicated with the second chamber 122. In this way, the refrigerant flows through the silencing chamber 12 through the silencing tube 15, and during the flowing process, the sound waves enter the first chamber 121 and the second chamber 122 through the first through hole 151 and the second through hole 152, respectively, and the first chamber 121 and the second chamber 122 form an expansion chamber, so that the sound energy is weakened, and the noise is reduced. Meanwhile, the refrigerant flows through the silencing tube 15, and the silencing tube 15 can also play a role in buffering the refrigerant, so that the pulsation intensity of the refrigerant is reduced, and the noise is reduced.

In a specific embodiment, as shown in fig. 10 and 11, one or more first through holes 151 may be provided in the silencer duct 15 to communicate with the first chamber 121, and one or more second through holes 152 may be provided to communicate with the second chamber 122. Here, the number of the first through holes 151 and the second through holes 152 is not particularly limited. Meanwhile, the arrangement positions and the specific shapes of the first through hole 151 and the second through hole 152 are not limited, so that the first through hole 151 is communicated with the first chamber 121, and the second through hole 152 is communicated with the second chamber 122.

In a specific embodiment, as shown in fig. 10 and 11, the silencing tube 15 may be designed as an "L" shaped tube having one bent portion, and the on-way resistance of refrigerant flowing through the "L" shaped tube is reduced compared to a corrugated tube having a plurality of bent portions, so that the resistance loss of the silencer 10 can be effectively reduced, and the overall performance of the silencer 10 can be improved.

In the embodiment, as shown in fig. 10 and 11, the silencing tube 15 can be integrally formed with the partition 14, so that the structure is simple and the assembly is convenient. Further, the inner diameter of the inlet of the muffler pipe 15 may be set to be slightly larger than the size of the airflow inlet 111 of the housing 11 to reduce a local resistance loss of the refrigerant flowing from the airflow inlet 111 into the muffler pipe 15.

Another embodiment of the present invention also provides a compressor (not shown) including the muffler of each of the above embodiments.

According to the compressor provided by the embodiment of the utility model, by using the silencer, the silencer can not absorb excessive heat from the cylinder cover to cause overhigh temperature and enhanced pulsation of the refrigerant, the silencing and noise reducing effects of the silencer are better, the reduction of the refrigeration efficiency of the compressor caused by the temperature rise of the refrigerant can be effectively avoided, the compressor has a better refrigeration effect, and the user experience is better. In addition, the compressor also has other technical effects of the silencer provided by the above embodiments, and details are not repeated here.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a silencer, its characterized in that, including the casing that is equipped with the amortization chamber, and locate the casing outer and with the gas-supply pipe of amortization chamber intercommunication, the gas-supply pipe has the connecting portion that are used for imbedding in the storage tank of cylinder head, the outer wall interval of connecting portion is equipped with a plurality of archs, the arch be used for with the cell wall of storage tank offsets, so that the outer wall of connecting portion with form thermal-insulated clearance between the cell wall.

2. The muffler of claim 1, wherein the connecting portion has a first sidewall, a second sidewall, and a third sidewall, the first sidewall, the second sidewall, and the third sidewall each having the protrusion disposed thereon.

3. The muffler of claim 2, wherein the first side wall, the second side wall and the third side wall are respectively provided with a plurality of protrusions, and the plurality of protrusions are uniformly spaced.

4. The muffler of claim 3, wherein the protrusions are ribs and/or bumps.

5. The muffler of claim 3, wherein the protrusions are raised ribs having an arc-shaped cross section, and/or wherein the protrusions are hemispherical protrusions.

6. The muffler of claim 2, wherein the first sidewall is opposite to the second sidewall, and a guide bar is protruded from the first sidewall and/or the second sidewall, and the guide bar is adapted to be inserted into a guide groove formed in the groove wall.

7. The silencer according to any one of claims 1 to 6, wherein the gas conveying pipe is provided with a gas outlet communicated with a valve plate through hole of the valve plate, a boss is arranged at the edge of the gas outlet and can be inserted into the valve plate through hole in a matching manner, and the outer wall surface of the boss can be attached to the hole wall of the valve plate through hole.

8. The muffler of claim 7, wherein the projection length L of the boss with respect to the air outlet is set to be longer₁Satisfies the following conditions: l/3 is less than or equal to L₁L, wherein L is the length of the hole wall of the through hole of the valve plate.

9. The silencer of claim 7, wherein the thickness of the boss in the radial direction of the air outlet is smaller than the wall thickness of the air conveying pipe, the boss protrudes from the inner edge of the air outlet, a step is formed on the outer edge of the air outlet, and the step can be matched and abutted to the hole edge of the through hole of the valve plate.

10. The silencer according to any one of claims 1 to 6, further comprising a silencing pipe and a partition plate arranged in the silencing cavity, wherein the partition plate divides the silencing cavity into a first cavity and a second cavity, the housing is provided with an airflow inlet and an airflow outlet, the airflow inlet is communicated with the first cavity, the airflow outlet is communicated with the air pipe, the silencing pipe is communicated with the airflow inlet and the airflow outlet, the silencing pipe is further provided with a first through hole and a second through hole, the first through hole is communicated with the first cavity, and the second through hole is communicated with the second cavity.

11. The utility model provides a compressor, its characterized in that, including cylinder head, valve plate and any claim 1 ~ 10 the muffler, the cylinder head is equipped with the storage tank, the connecting portion of gas-supply pipe inlay and locate in the storage tank, the outer wall interval of connecting portion is equipped with a plurality of archs, the arch with the cell wall of storage tank offsets, so that the outer wall of connecting portion with form thermal-insulated clearance between the cell wall, the valve plate is equipped with the valve plate through-hole, the valve plate with the cylinder head is connected with the connecting portion chucking in the storage tank, the gas outlet of gas-supply pipe with the valve plate through-hole is linked together.