CN113153688A

CN113153688A - Air suction silencer, compressor and temperature adjusting equipment

Info

Publication number: CN113153688A
Application number: CN202110391463.5A
Authority: CN
Inventors: 吴小凌; 陈会平; 吴肖斌; 黄锋
Original assignee: Wanbao Group Compressor Co ltd
Current assignee: Wanbao Group Compressor Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-07-23
Anticipated expiration: 2041-04-13
Also published as: CN113153688B

Abstract

The invention discloses a suction muffler, a compressor and a temperature adjusting device, comprising: the suction muffler body is provided with an air suction port and an air exhaust port; the silencer head part is provided with an air inlet which is used for being butted with the exhaust port, and the silencer head part is provided with an air outlet which is matched with a tongue part of a compressor suction valve plate; the silencer head part and the air suction silencer body are arranged in a split mode, the silencer head part can be connected with the air suction silencer body, the exhaust port is in butt joint with the air inlet, and an air suction channel from the air suction port to the air outlet is formed. Because the suction muffler designed by the invention is of a split structure and comprises the independent muffler head part and the suction muffler body, the same suction muffler body can be shared among the serialized compressor products with the suction valve sheet tongues of different shapes, and only the corresponding muffler head part and the corresponding cylinder cover need to be replaced.

Description

Air suction silencer, compressor and temperature adjusting equipment

Technical Field

The invention is used in the field of compressors, and particularly relates to a suction muffler, a compressor and temperature regulating equipment.

Background

When the refrigerator compressor runs, the air flow pressure pulsation can be caused in the air suction process, low-frequency air suction noise is generated, and the user experience is influenced. Therefore, existing refrigerator compressors are provided with a suction muffler, the head of which is of an integral design, in order to reduce the suction noise as much as possible.

The compressor of refrigerator is provided with a suction valve plate and a discharge valve plate, which control the inlet and outlet of refrigerant flow, so-called suction process and discharge process. Correspondingly, a cylinder cover of the compressor is provided with an exhaust high-pressure cavity and an air suction low-pressure cavity, and a sealing structure is arranged between the high-pressure cavity and the low-pressure cavity. According to the requirements of different product application scenes, the suction valve plate of the compressor has various shape designs and corresponds to different suction channel sectional areas. When the compressor pursues high suction valve plate reliability, will adopt small suction valve plate tongue portion, correspond to the small suction channel sectional area, the suction muffler of the little head of supporting use this moment. When the compressor pursues large cold quantity, high performance, will adopt big suction valve plate tongue, correspond to big suction channel sectional area, the suction muffler of big head of supporting use this moment. Therefore, various suction valve sheet tongues are designed among different models of compressors, and suction silencers with different head structures need to be designed and produced correspondingly, which results in large increase of mold opening workload, mold opening cost and production management cost.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art and to providing a suction muffler, a compressor and a temperature adjusting apparatus.

The technical scheme adopted by the invention for solving the technical problems is as follows:

in a first aspect, a suction muffler comprises:

the suction muffler body is provided with an air suction port and an air exhaust port;

the silencer head part is provided with an air inlet which is used for being butted with the exhaust port, and the silencer head part is provided with an air outlet which is matched with a tongue part of a compressor suction valve plate;

the silencer head part and the air suction silencer body are arranged in a split mode, the silencer head part can be connected with the air suction silencer body, the exhaust port is in butt joint with the air inlet, and an air suction channel from the air suction port to the air outlet is formed.

With reference to the first aspect, in certain implementations of the first aspect, the intake silencer further includes a cylinder head, the cylinder head is provided with a first mounting groove, a low-pressure cavity is defined in an inner space of the first mounting groove by the cylinder head, a high-pressure cavity is defined in an outer space of the first mounting groove by the cylinder head, the intake silencer body is provided with a neck, the exhaust port is disposed on an end surface of the neck, the silencer head is disposed in the first mounting groove, and the neck and the silencer head are butted in the first mounting groove.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the mating surface of the neck portion and the muffler head part is an inclined surface, and the inclined surface of the neck portion presses against the inclined surface of the muffler head part to press and press the muffler head part against the first mounting groove of the cylinder head.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, a positioning bottom plate is disposed at a bottom of the inclined surface of the muffler head part, the positioning bottom plate extends toward the neck, and the neck compresses the positioning bottom plate in the first mounting groove.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, second installation grooves are formed in two side groove walls of the first installation groove, first positioning clamping wings are arranged at two side edges of the positioning bottom plate, a second positioning clamping wing is arranged at the neck, and the second positioning clamping wings and the first positioning clamping wings are assembled in the second installation grooves in an overlapping manner.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the air inlet of the muffler head part is in a flaring shape, and after the air suction muffler body is connected with the air suction muffler body, the air inlet of the muffler head part covers the air outlet of the air suction muffler body.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the suction muffler body and the muffler head part are made of different materials, and the wall thickness of the muffler head part is 0.6-0.8 mm.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the gas muffler body is made of a PBT material, and the muffler head part is made of fluororubber.

In a second aspect, a compressor comprises the suction muffler of any one of the implementations of the first aspect.

In a third aspect, a temperature regulating device comprises the compressor in any one of the implementation manners of the second aspect.

One of the above technical solutions has at least one of the following advantages or beneficial effects: because the suction muffler designed by the invention is of a split structure and comprises the independent muffler head part and the suction muffler body, the same suction muffler body can be shared among the serialized compressor products with the suction valve sheet tongues of different shapes, and only the corresponding muffler head part and the corresponding cylinder cover need to be replaced.

In addition, when the compressor model is applied to severe environment, such as in the south asia market with high ambient temperature, the temperature of the shell of the compressor is too high, and the temperature of the cylinder head exceeds the cracking temperature of the refrigerating machine oil and the refrigerant in the compressor, so that carbon deposition inside the compressor is caused. At the moment, the compressor can eliminate the head part of the silencer, only the suction silencer body is assembled, the low-temperature suction airflow blows air to the low-pressure cavity of the cylinder cover for cooling, the temperature of the cylinder head can be cooled, and carbon deposition of the cylinder head is avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an assembled state of a suction muffler and a cylinder head according to an embodiment of the present invention;

FIG. 2 is a schematic view of the intake silencer and cylinder head of the embodiment shown in FIG. 1 in an exploded configuration;

FIG. 3 is a schematic view of the structure of a muffler head component according to an embodiment of the present invention;

FIG. 4 is a schematic view of the construction of a muffler head part according to another embodiment of the present invention;

FIG. 5 is a sectional view of the assembled structure of the suction muffler and the cylinder head of the embodiment shown in FIG. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.

In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Fig. 1 shows a reference direction coordinate system of an embodiment of the present invention, and the following describes an embodiment of the present invention with reference to the directions shown in fig. 1.

An embodiment of the present invention provides a suction muffler comprising a suction muffler body 1 and a muffler head part 2.

Referring to fig. 1 and 2, the suction muffler body 1 is provided with a suction port 11 and an exhaust port 12, and a suction muffler chamber is provided inside the suction muffler body 1 to reduce suction noise as much as possible during suction.

Referring to fig. 3 and 4, the muffler head 2 is provided with an air inlet 21 for docking with the air outlet 12, and the muffler head 2 is provided with an air outlet 22 matching with the tongue of the compressor suction valve plate, such as a round mouth shaped air outlet matching with the tongue of the smaller suction valve plate and a special shaped air outlet matching with the tongue of the larger suction valve plate. The silencer head part 2 forms a curved air passage at the air inlet 21 and the air outlet 22 to guide the air flow discharged from the suction silencer body 1 to the suction valve sheet of the compressor.

Referring to fig. 1, 2 and 5, the silencer head 2 is separated from the suction silencer body 1, and the silencer head 2 can be connected to the suction silencer body 1 to butt the exhaust port 12 and the air inlet 21, thereby forming a suction passage from the air inlet 11 to the air outlet 22.

Because the suction muffler designed by the invention is of a split structure and comprises the independent muffler head part 2 and the suction muffler body 1, serial compressor products with suction valve sheet tongues of different shapes can share the same suction muffler body 1, and only the corresponding muffler head part 2 and the corresponding cylinder cover 3 need to be replaced, so that the die sinking cost and the production management cost are greatly reduced.

In addition, when the compressor model is applied to severe environment, such as in the south asia market with high ambient temperature, the temperature of the shell of the compressor is too high, and the temperature of the cylinder head exceeds the cracking temperature of the refrigerating machine oil and the refrigerant in the compressor, so that carbon deposition inside the compressor is caused. At the moment, the compressor can eliminate the silencer head part 2 and only assemble the air suction silencer body 1, so that the low-temperature air suction flow blows air to the low-pressure cavity of the cylinder cover 3 for cooling, the temperature of the cylinder head can be cooled, and carbon deposition of the cylinder head is avoided.

In some embodiments, referring to fig. 1, 2 and 5, the present invention further includes a cylinder head 3, the cylinder head 3 is provided with a first mounting groove 31, the cylinder head 3 defines a low pressure chamber 32 in an inner space of the first mounting groove 31, the cylinder head 3 defines a high pressure chamber 33 in an outer space of the first mounting groove 31, and the low pressure chamber 32 is located outside the suction valve plate for suction when the cylinder head 3 is assembled on the compressor block. The high pressure chamber 33 is located outside the exhaust valve plate for exhausting. A seal 34 is provided between the high and low pressure chambers 32 to prevent leakage within the compressor.

Referring to fig. 1 and 2, the suction muffler body 1 is provided with a neck 13, the neck 13 protrudes from the suction muffler body 1, the exhaust port 12 is arranged on the end surface of the neck 13, the muffler head part 2 is arranged in a first mounting groove 31, the neck 13 and the muffler head part 2 are butted in the first mounting groove 31, namely, the neck 13 and the muffler head part 2 are limited by means of the first mounting groove 31, accurate butt joint is realized, and the suction muffler and the cylinder head 3 are assembled in a matched manner to form a cylinder head assembly. The cylinder head assembly may further be attached to the compressor cylinder end by fasteners.

Further, in some embodiments, referring to fig. 2 and 5, the matching surface of the neck 13 and the muffler head 2 is an inclined surface 4, and the inclined surface 4 of the neck 13 presses against the inclined surface 4 of the muffler head 2 to press and press the muffler head 2 against the first mounting groove 31 of the cylinder head 3. Neck 13 and muffler head part 2 adopt inclined plane 4 to cooperate, through neck 13 to muffler head part 2 at the packing force of first mounting groove 31 depth direction, cleverly realized exhaust port 12 and air inlet 21's close fit butt joint.

Further, referring to fig. 1 to 5, the bottom of the inclined surface 4 of the muffler head part 2 is provided with a positioning bottom plate 23, the positioning bottom plate 23 extends toward the neck portion 13, i.e., rearward in fig. 1, and the neck portion 13 presses the positioning bottom plate 23 in the first mounting groove 31.

Further, referring to fig. 2 and 4, the left and right side walls of the first mounting groove 31 are provided with second mounting grooves 35, the left and right side edges of the positioning bottom plate 23 are provided with first positioning snap wings 24, the neck portion 13 is provided with second positioning snap wings 14, and the second positioning snap wings 14 and the first positioning snap wings 24 are assembled in the second mounting grooves 35 in an overlapping manner. Neck 13 and muffler head part 2 realize the spacing of fore-and-aft direction in first mounting groove 31 through first location card wing 24 and second location card wing 14, avoid because of adopting the muffler head part 2 deformation that inclined plane 4 cooperation leads to. Meanwhile, the matching precision of the neck 13 and the silencer head part 2 in the front and back directions is ensured, and the assembly is convenient.

In order to avoid that the air inlet channel of the silencer head part obstructs the air flow due to manufacturing error, assembly error and air inlet channel error of the silencer body after assembly, referring to fig. 3-5, in some embodiments, the air inlet 21 of the silencer head part 2 is flared, and the air inlet channel of the silencer head part 2 is designed to be conical or flared, so that the diameter of the air inlet channel towards one end of the air suction silencer body 1 is larger. After the suction muffler body 1 is connected with the suction muffler body 1, the air inlet 21 of the muffler head part 2 covers the exhaust port 12 of the suction muffler body 1, so that air flow is prevented from being blocked.

The design of the compressor cylinder head parts is compact, and the compressor design is gradually miniaturized in order to save material cost, so that the wall thickness of the sealing structure 34 on the cylinder head 3 is smaller and smaller, the sealing width of the corresponding cylinder head 3 mounted at the head part of the silencer is reduced, a paper gasket of the cylinder head 3 is broken by high-pressure gas when the compressor is overloaded, the leakage failure in the compressor is caused, and the loss is caused. The wall thickness of the sealing 34 of the cylinder head 3 cannot be increased towards the high-pressure chamber 33, because of the design of the cylinder head. Therefore, in order to increase the thickness of the sealing structure 34, the thickness of the muffler head needs to be reduced only in the direction of the low pressure chamber 32 where the muffler head is attached. However, the existing suction muffler is made of PBT materials, and is influenced by physical properties and chemical properties of the materials, the minimum thickness of the head materials of the muffler can only be 1.0mm, and the suction muffler is easy to age and crack due to the smaller thickness of the head materials of the muffler and is easy to crack due to excessive stress deformation during installation. In view of this, in some embodiments, the suction muffler body 1 and the muffler head 2 are made of different materials, for example, the gas muffler body is made of PBT (poly (tetramethylene terephthalate)) and the muffler head 2 is made of fluororubber, because fluororubber is more chemically stable and has better toughness and fluidity, so the wall thickness of the muffler head can be made smaller. The wall thickness of the material of the silencer head part 2 can be made smaller, and the wall thickness of the silencer head part 2 is 0.6-0.8 mm.

Embodiments of the present invention also provide a compressor including the suction muffler in any one of the above embodiments.

Embodiments of the present invention further provide a temperature adjusting device, including the compressor in any of the above embodiments, where the temperature adjusting device includes, but is not limited to, an air conditioner, a refrigerator, and the like.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.

Claims

1. A suction muffler, comprising:

2. The suction muffler as claimed in claim 1, further comprising a cylinder head provided with a first mounting groove, the cylinder head defining a low pressure chamber in an inner space of the first mounting groove, the cylinder head defining a high pressure chamber in an outer space of the first mounting groove, the suction muffler body being provided with a neck portion, the exhaust port being provided at an end surface of the neck portion, the muffler head being provided in the first mounting groove, the neck portion being butted against the muffler head in the first mounting groove.

3. The suction muffler of claim 2, wherein the mating surface of the neck portion with the muffler head member is an inclined surface, and the inclined surface of the neck portion presses against the inclined surface of the muffler head member to press the muffler head member against and into the first mounting groove of the cylinder head.

4. The suction muffler as claimed in claim 3, wherein a positioning bottom plate is provided at a bottom of the inclined surface of the muffler head part, the positioning bottom plate extending toward the neck part, the neck part pressing the positioning bottom plate in the first mounting groove.

5. The suction muffler as claimed in claim 4, wherein a second mounting groove is formed on both side walls of the first mounting groove, a first positioning wing is formed on both side edges of the positioning base plate, and a second positioning wing is formed on the neck portion, and the second positioning wing and the first positioning wing are assembled in the second mounting groove in an overlapping manner.

6. The suction muffler as defined in claim 1, wherein the inlet port of the muffler head is formed in a flared shape, and the inlet port of the muffler head covers the outlet port of the suction muffler body when the suction muffler body is coupled to the suction muffler body.

7. The suction muffler of claim 1, wherein the suction muffler body and the muffler head member are made of different materials, and the wall thickness of the muffler head member is 0.6-0.8 mm.

8. The suction muffler of claim 7, wherein the gas muffler body is made of PBT material and the muffler head member is made of viton.

9. A compressor, characterized by comprising the suction muffler as recited in any one of claims 1 to 8.

10. Tempering device, characterized in that it comprises a compressor according to claim 9.