Compressor body structure, compressor and air conditioner

Abstract

The invention provides a compressor body structure, a compressor and an air conditioner, and belongs to the technical field of compressors. The compressor body structure comprises a first air cylinder, a second air cylinder, a slip sheet and a partition plate, wherein slip sheet grooves are formed in the first air cylinder and the second air cylinder; the sliding piece is arranged in the sliding piece groove in a reciprocating telescopic mode, a neck channel is formed in the end face of the sliding piece, and an opening of the neck channel leads to a working cavity of the first air cylinder / the second air cylinder. A noise reduction cavity is correspondingly formed in the end face, matched with the end face of the sliding piece, of the partition plate, and the noise reduction cavity is located on the reciprocating telescopic motion path of the sliding piece; when the sliding piece reciprocates, the neck channel periodically communicates with the silencing cavity and the working cavity, and the effective length of the neck channel changes along with the change of the length of the sliding piece extending out of or retracting into the sliding piece groove, namely the effective length is increased when the sliding piece extends out, and the effective length is reduced when the sliding piece retracts, so that the silencing frequency of the Helmholtz resonant cavity can be changed; and the silencing frequency range is increased.

Description

Technical Field

[0001] This invention belongs to the field of compressor technology, specifically relating to a compressor body structure, a compressor and an air conditioner. Background Technology

[0002] During the operation of a variable frequency air conditioner, the compressor's intake, compression, and exhaust processes all generate pressure changes, resulting in significant noise. Current technology primarily addresses this by adding Helmholtz resonators during the intake, compression, and exhaust processes to eliminate noise at higher frequencies with larger amplitudes. While Helmholtz resonators are effective at suppressing noise at specific frequencies, their suppression range is narrow, often only addressing a single prominent noise. If multiple noise frequencies occur simultaneously, they cannot be eliminated at the same time unless multiple Helmholtz resonators with different suppression frequencies are added. Furthermore, due to space limitations in the air conditioner casing, it is generally impossible to add a sufficient number of Helmholtz resonators inside the air conditioner. Even increasing the number of Helmholtz resonators only to address a few prominent noises would increase manufacturing costs. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a compressor body structure, a compressor, and an air conditioner. This invention aims to solve the problem that the fixed-structure Helmholtz resonant cavity inside existing air conditioner compressors can only reduce the peak value of noise at specific frequencies, without improving noise at other frequencies.

[0004] This invention provides a compressor body structure, including a first cylinder, a second cylinder, a sliding vane, and a partition plate; Both the first and second cylinders are equipped with sliding vane grooves; The slide is reciprocating and telescopically mounted in the slide groove. The slide has a neck channel on its end face that mates with the partition. The opening of the neck channel leads to the working chamber of the first cylinder / second cylinder. A partition is set between the first cylinder and the second cylinder. A silencing cavity is opened on the partition end face that mates with the slide end face. The silencing cavity is located on the reciprocating extension and retraction movement path of the slide. The compressor body structure is configured such that when the vane reciprocates in the vane slot, the neck channel periodically connects the silencing cavity and the working cavity, and the effective length of the connection between the neck channel and the silencing cavity changes with the length of the vane extending or retracting from the vane slot: the effective length increases when the vane extends outward and decreases when the vane retracts inward.

[0005] Furthermore, the slide includes a slide head located on one side of the opening of the slide groove; the opening of the neck channel extends along the reciprocating extension and retraction direction of the slide to the side near the slide head.

[0006] Furthermore, the neck channel is inclinedly disposed on the end face of the slide; the opening of the neck channel is formed with a flared structure.

[0007] Furthermore, the first cylinder / second cylinder is provided with an intake port and an exhaust port located on both sides of the slide groove, so that the slide divides the working chamber into a high-pressure chamber and a low-pressure chamber; the slide also includes a slide side that fits into the slide groove, and the opening of the neck channel is located on the slide side, so that the neck channel connects the muffler chamber and the high-pressure chamber, or connects the muffler chamber and the low-pressure chamber.

[0008] Furthermore, the end face of the partition plate is also in contact with the first cylinder / second cylinder; the muffler cavity is a blind hole opened on the end face of the partition plate.

[0009] Furthermore, the diameter of the silencing cavity is greater than the width of the slider groove; the length of the neck channel is greater than the maximum distance between the silencing cavity and the slider head during the reciprocating motion of the slider.

[0010] Furthermore, the silencing frequency of the silencing cavity for: ; in, c For refrigerant sound velocity, S 0 represents the cross-sectional area of ​​the neck channel. V The effective volume of the silencing cavity, l This is the effective length of the neck passage.

[0011] Accordingly, the present invention also provides a compressor, comprising: The compressor body structure provided in the first aspect's embodiment; The first flange and the second flange are respectively located on the side of the first cylinder and the second cylinder away from the partition, so that the first cylinder and the second cylinder form a closed working chamber. The crankshaft has a first eccentric part and a second eccentric part, and the crankshaft passes through the first flange and the second flange in sequence. The first roller and the second roller are respectively sleeved on the first eccentric part and the second eccentric part, and are respectively located in the working chambers of the first cylinder and the second cylinder; When the compressor is running, the vanes reciprocate along the vane groove, thereby changing the effective length of the connection between the neck channel and the silencer cavity.

[0012] Furthermore, the eccentric angles of the first eccentric part and the second eccentric part differ by 180°.

[0013] Accordingly, the present invention also provides an air conditioner, including the compressor provided in the embodiment of the second aspect.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: A compressor body structure includes a first cylinder, a second cylinder, a sliding vane, and a partition plate; Both the first and second cylinders are equipped with sliding vane grooves; The slide is reciprocating and telescopically mounted in the slide groove. The slide has a neck channel on its end face that mates with the partition. The opening of the neck channel leads to the working chamber of the first cylinder / second cylinder. A partition is set between the first cylinder and the second cylinder. A silencing cavity is opened on the partition end face that mates with the slide end face. The silencing cavity is located on the reciprocating extension and retraction movement path of the slide. The compressor body structure is configured such that when the vane reciprocates in the vane slot, the neck channel periodically connects the silencing cavity and the working cavity, and the effective length of the connection between the neck channel and the silencing cavity changes with the length of the vane extending or retracting from the vane slot: the effective length increases when the vane extends outward and decreases when the vane retracts inward, thereby changing the silencing frequency of the Helmholtz resonant cavity and increasing the silencing frequency range.

[0015] In this invention, the silencing cavity is set on the partition plate, which provides more space for designing a larger silencing cavity compared to setting it directly on the cylinder. According to the Helmholtz resonant cavity calculation formula, the silencing effect will be enhanced as the silencing cavity is enlarged.

[0016] In this invention, because the forces on both sides of the vane are different during the compression process of the compressor, there is a gap between the vane and the vane groove. The entire neck channel is set on the vane, which has better sealing performance.

[0017] In this invention, the vane reciprocates and extends during the operation of the compressor, while the partition remains stationary. The Helmholtz resonant cavity is placed on the vane and the partition, so that the noise reduction frequency is only affected by the change in the length of the neck channel, reducing the design difficulty and making the structure simpler and more reliable. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of a compressor body structure / a compressor structure according to the present invention; Figure 2 This is a schematic diagram of the structure of the first cylinder / second cylinder of the present invention; Figure 3 This is a schematic diagram of the structure of the partition of the present invention; Figure 4This is a schematic diagram of the slider of the present invention; Figure 5 This is a schematic diagram of the compressor body structure of the present invention in the extended vane state; Figure 6 This is a schematic diagram of the compressor body structure of the present invention in the retracted vane state.

[0020] In the diagram: 110 First cylinder, 120 Second cylinder, 200 Sliding vane, 210 Sliding vane groove, 220 Sliding vane end face, 230 Sliding vane head, 240 Sliding vane side, 300 Partition plate, 310 Partition plate end face, 410 Neck passage, 420 Silencing cavity, 430 Flange structure, 510 First flange, 520 Second flange, 600 Crankshaft, 710 First roller, 720 Second roller. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] Throughout the specification and claims, the following terms will have at least the meaning explicitly associated herein, unless the context otherwise requires. The meanings defined below are not intended to limit the terms, but are merely illustrative examples.

[0023] In the description of this invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments," as used herein, does not necessarily refer to the same embodiment when used multiple times, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or," unless the context clearly specifies otherwise. The term "based on" is not exclusive and allows for reliance on additional factors not described, unless the context clearly specifies otherwise. The word "exemplary" herein means "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of this invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed invention. The various embodiments provided in this invention should not be construed as limiting the scope of protection of this invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] Inside the compressor of an existing inverter air conditioner, the fixed-structure Helmholtz resonator can only reduce the peak noise at specific frequencies, and has no effect on noise at other frequencies. Adding multiple Helmholtz resonators with different silencing frequencies would increase the manufacturing cost of the compressor; and due to the space limitations of the air conditioner casing, it is impossible to add enough Helmholtz resonators inside the air conditioner.

[0029] To address the noise reduction problem of the compressor in variable frequency air conditioners, this invention provides a Helmholtz resonant cavity structure with a variable effective connection length between the neck channel and the silencing cavity, used to reduce the noise generated by the compressor in variable frequency air conditioners during the intake, compression, and exhaust processes.

[0030] like Figures 1 to 6 As shown, this embodiment of the invention provides a compressor body structure, including a first cylinder 110, a second cylinder 120, a sliding vane 200, and a partition 300. Both the first cylinder 110 and the second cylinder 120 are provided with sliding vane grooves 210. The sliding vane 200 is reciprocatingly extended and retractable within the sliding vane groove 210. A neck channel 410 is formed on the sliding vane end face 220 that mates with the partition 300, and the opening of the neck channel 410 leads to the working chamber of the first cylinder 110 / second cylinder 120. The partition 300 is disposed between the first cylinder 110 and the second cylinder 120. A silencing cavity 420 is correspondingly formed on the partition end face 310 that mates with the sliding vane end face 220 of the partition 300, and the silencing cavity 420 is located along the reciprocating movement path of the sliding vane 200.

[0031] Specifically, the vane 200 is reciprocatingly extended and retractable within the vane groove 210, and the vane end face 220 is tightly fitted with the partition end face 310, ensuring that the vane 200 can only reciprocate and retract along the vane groove 210. During compressor operation, the vane 200 reciprocates against the side of the compressor rollers under pressure and spring force, working in conjunction with the intake and exhaust ports on both sides of the vane groove 210 to realize the compressor's intake, compression, and exhaust processes.

[0032] The compressor body structure is configured such that when the vane 200 reciprocates within the vane groove 210, the neck channel 410 periodically connects the silencing cavity 420 and the working cavity, and the effective length of the connection between the neck channel 410 and the silencing cavity 420 varies with the length of the vane 200 extending or retracting from the vane groove 210: the effective length increases when the vane 200 extends outward, and decreases when the vane 200 retracts inward.

[0033] Specifically, since the silencing cavity 420 is located on the reciprocating movement path of the vane 200, and the opening of the neck channel 410 leads to the working chamber of the first cylinder 110 / second cylinder 120, the neck channel 410 can periodically connect the silencing cavity 420 and the working chamber when the vane 200 reciprocates within the vane groove 210. When the neck channel 410 simultaneously connects to both the silencing cavity 420 and the working chamber, a Helmholtz resonant cavity structure is formed, thereby reducing aerodynamic noise generated during the compressor's cyclic intake, compression, and exhaust processes.

[0034] As the sliding vane 200 reciprocates, the effective length connecting the neck channel 410 and the silencing cavity 420 changes with the length of the sliding vane 200 extending or retracting from the sliding vane groove 210: when the sliding vane 200 extends outward from the sliding vane groove 210, the effective length of the neck channel 410 increases, and the silencing frequency decreases; when the sliding vane 200 retracts inward from the sliding vane groove 210, the effective length of the neck channel 410 decreases, and the silencing frequency increases. Through the continuous reciprocating movement of the sliding vane 200, the effective length of the neck channel 410 can be periodically changed, thereby achieving multi-frequency silencing, increasing the silencing frequency range, and reducing the noise during compressor operation.

[0035] When the slide 200 is fully retracted into the slide groove 210, the roller closes the opening connecting the neck channel 410 and the working chamber. At this time, one cycle of the neck channel 410 connecting the silencing cavity 420 and the working chamber ends, and the next cycle begins as the roller rotates.

[0036] Preferably, in combination with the above schemes, such as Figure 4 As shown, in one embodiment of the present invention, the slide 200 includes a slide head 230 located on one side of the opening of the slide groove 210, and the opening of the neck channel 410 extends along the reciprocating extension and retraction direction of the slide 200 to the side near the slide head 230.

[0037] Specifically, the slider head 230 is located on one side of the opening of the slider groove 210, and the opening of the neck channel 410 extends along the reciprocating extension and retraction direction of the slider 200 to the side close to the slider head 230, so that when the slider 200 reciprocates and retracts along the slider groove 210, the neck channel 410 can connect to the working chamber, thereby forming a Helmholtz resonant cavity structure between the neck channel 410, the silencing cavity 420 and the working chamber.

[0038] Understandably, in order to increase the communication area between the neck channel 410 and the working chamber, the opening of the neck channel 410 can be set as a flared structure 430. Here, the specific shape and size of the flared structure 430 are not limited; it can be a trumpet shape, a triangle, or other shapes. The only requirement is that during the reciprocating extension and retraction of the slider 200, the neck channel 410 can periodically connect the silencing cavity 420 and the working chamber.

[0039] Preferably, in combination with the above schemes, such as Figure 4 As shown, in one embodiment of the present invention, the neck channel 410 is obliquely disposed on the slide end face 220, and the opening of the neck channel 410 is formed with a flared structure 430.

[0040] Specifically, the neck channel 410 is inclinedly disposed on the vane end face 220, and one side of the neck channel 410 extends to the side of the vane 200 to form a through groove, that is, to form an flared structure 430 at the opening of the neck channel 410, so that the neck channel 410 can periodically connect the working chamber during the operation of the compressor.

[0041] The cross-sectional shape of the neck channel 410 is not limited here; it can be rectangular, arc-shaped, etc.

[0042] Preferably, in combination with the above schemes, such as Figure 4 As shown in the embodiment of the present invention, the first cylinder 110 / second cylinder 120 is provided with an intake port and an exhaust port located on both sides of the slide groove 210, so that the slide 200 divides the working chamber into a high-pressure chamber and a low-pressure chamber. The slide 200 also includes a slide side surface 240 that fits against the slide groove 210, and the opening of the neck channel 410 is located on the slide side surface 240, so that the neck channel 410 connects the silencer chamber 420 and the high-pressure chamber, or connects the silencer chamber 420 and the low-pressure chamber.

[0043] Specifically, the side surface 240 of the vane is in close contact with the vane groove 210, so that the vane 200 divides the working chamber into a high-pressure chamber and a low-pressure chamber, which is used to realize the compressor's cyclic intake process, compression process and exhaust process.

[0044] In some embodiments, the opening of the neck channel 410 is tilted toward one side of the high-pressure chamber and connects the silencing cavity 420 and the high-pressure chamber, so that the formed Helmholtz resonant cavity structure can reduce compression and exhaust noise during each cycle of compression and exhaust.

[0045] In other embodiments, the opening of the neck channel 410 is tilted toward one side of the low-pressure chamber and connects the silencing cavity 420 and the low-pressure chamber, so that the formed Helmholtz resonant cavity structure can reduce inhalation noise during each cycle of inhalation.

[0046] It is understandable that, within the same compressor body structure, both a neck passage 410 connecting the high-pressure chamber and a neck passage 410 connecting the low-pressure chamber can be provided simultaneously. Preferably, in combination with the above schemes, such as Figure 3 As shown, in one embodiment of the present invention, the partition end face 310 is also in contact with the first cylinder 110 / second cylinder 120, and the silencing cavity 420 is a blind hole opened on the partition end face 310.

[0047] Specifically, the silencing cavity 420 is a blind hole formed on the end face 310 of the partition plate, so that during the operation of the compressor, the neck channel 410, the silencing cavity 420 and the working chamber can be periodically connected to form a closed Helmholtz resonant cavity. Here, the specific shape of the silencing cavity 420 is not limited, but preferably, the silencing cavity 420 is a circular blind hole.

[0048] Preferably, in combination with the above schemes, such as Figure 3 As shown, in one embodiment of the present invention, the diameter of the silencing cavity 420 is greater than the width of the slide groove 210, and the length of the neck channel 410 is greater than the maximum distance between the silencing cavity 420 and the slide head 230 when the slide 200 reciprocates.

[0049] Specifically, the diameter of the silencing cavity 420 is larger than the width of the slider groove 210, so that the neck channel 410 can always be connected to the silencing cavity 420 when the slider 200 reciprocates within the slider groove 210. The length of the neck channel 410 is greater than the maximum distance between the silencing cavity 420 and the slider head 230 during the reciprocating motion of the slider 200, so that the neck channel 410 can always be connected to the silencing cavity 420 and the high-voltage cavity when the slider 200 is extended from the slider groove 210, thereby forming a Helmholtz resonant cavity structure for noise reduction.

[0050] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the noise reduction frequency of the silencing cavity 420 is... for: .

[0051] in, c For refrigerant sound velocity, S 0 represents the cross-sectional area of ​​the neck channel 410. V The effective volume of the silencing cavity is 420. l The effective length of the neck passage 410.

[0052] Specifically, based on the silencing frequency of the aforementioned silencing cavity 420 From the expression, we can see that the silencing frequency is... The effective length of the connection between the neck channel 410 and the silencing cavity 420 is affected: when the slider 200 extends outward from the slider groove 210, the effective length increases, and the silencing frequency... The effective length decreases as the slider 200 retracts inward into the slider groove 210, thus reducing the noise reduction frequency. Increase.

[0053] Accordingly, in conjunction with the above schemes, such as Figures 1 to 3As shown, the present invention also provides a compressor, including the compressor body structure provided in the first aspect embodiment. The compressor having the compressor body structure provided by the present invention has a Helmholtz resonant cavity with a variable length of neck channel 410 formed on the vane 200 and the partition 300. When the vane 200 extends or retracts, the silencing frequency of the Helmholtz resonant cavity can be changed, thereby increasing the silencing frequency range.

[0054] The compressor also includes a first flange 510 and a second flange 520, which are respectively disposed on the side of the first cylinder 110 and the second cylinder 120 away from the partition 300, forming a closed working chamber within the first cylinder 110 and the second cylinder 120. It also includes a crankshaft 600, which has a first eccentric portion and a second eccentric portion. The crankshaft 600 passes sequentially through the first flange 510 and the second flange 520, so that the first flange 510 and the second flange 520 together act as bearings to support the rotation of the crankshaft 600. It also includes a first roller 710 and a second roller 720, which are respectively sleeved on the first eccentric portion and the second eccentric portion, and are respectively located within the working chambers of the first cylinder 110 and the second cylinder 120.

[0055] Specifically, during compressor operation, the crankshaft 600 rotates, causing the first roller 710 and the second roller 720 to rotate eccentrically. At this time, the vane 200 reciprocates along the vane groove 210, thereby realizing the compressor's cyclical intake, compression, and exhaust processes. Through the reciprocating movement of the vane 200 along the vane groove 210, the effective length connecting the neck channel 410 and the silencer cavity 420 can be changed, thereby altering the silencing frequency of the Helmholtz resonator and increasing the silencing frequency range.

[0056] It is understandable that the compressor is installed with the crankshaft 600 as the center. When the crankshaft 600 rotates at an angle of 180°, the effective length of the neck channel 410 is the longest. When the crankshaft 600 rotates at an angle of 0°, the vane 200 is completely retracted into the vane groove 210, and the neck channel 410 is closed.

[0057] Preferably, in combination with the above schemes, such as Figure 1 As shown, in one embodiment of the present invention, the eccentric angles of the first eccentric part and the second eccentric part differ by 180°.

[0058] Specifically, the eccentric angles of the first eccentric part and the second eccentric part differ by 180°. The first roller 710 and the second roller 720 are respectively fitted onto the first eccentric part and the second eccentric part, and roll as the crankshaft 600 rotates. That is, when the rolling angle of the first roller 710 is 180°, the rolling angle of the second roller 720 is 0°. Since the vane head 230 is always in contact with the first roller 710 / second roller 720, that is, when the vane 200 in contact with the first roller 710 is in the extended state, the vane 200 in contact with the second roller 720 is in the retracted state. The first roller 710 and the second roller 720 have the same motion structure and motion mode except that their motion periods differ by 180°.

[0059] Accordingly, the present invention also provides an air conditioner, including the compressor provided in the second aspect embodiment, wherein a Helmholtz resonant cavity with a variable length of neck channel 410 is provided in the compressor body structure of the compressor, and the silencing frequency of the Helmholtz resonant cavity can be changed when the vane 200 extends or retracts, thereby increasing the silencing frequency range.

[0060] The technical solution provided by the present invention has a reasonable structural design and is easy to process and form. By forming a Helmholtz resonant cavity with a variable length of neck channel 410 on the slider 200 and the partition 300, the noise reduction frequency of the Helmholtz resonant cavity can be changed and the noise reduction frequency range can be increased when the slider 200 extends or retracts.

[0061] In this invention, the silencing cavity 420 is set on the partition plate 300. Compared with setting it directly on the cylinder, it has more space to design a larger silencing cavity 420. According to the Helmholtz resonant cavity calculation formula, the silencing effect will be enhanced when the silencing cavity 420 is enlarged.

[0062] In this invention, since the forces on both sides of the vane 200 are different during the compression process of the compressor, there is a gap between the vane 200 and the vane groove 210. The neck channel 410 is entirely set on the vane 200, which has better sealing performance.

[0063] During the operation of the compressor, the vane 200 reciprocates and extends, while the partition 300 remains stationary. This invention places the Helmholtz resonant cavity on the vane 200 and the partition 300, so that the noise reduction frequency is only affected by the change in the length of the neck channel 410, reducing the design difficulty and making the structure simpler and more reliable.

[0064] The sequence numbers or order of description of the embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A compressor body structure characterized by comprising: The compressor body structure comprises a first cylinder (110), a second cylinder (120), a sliding vane (200) and a partition plate (300); The first cylinder (110) and the second cylinder (120) are both provided with a sliding vane groove (210); The sliding vane (200) is arranged in the sliding vane groove (210) and can reciprocatingly extend and retract, and a neck passage (410) is formed in a sliding vane end surface (220) of the sliding vane (200) which cooperates with the partition plate (300), and an opening of the neck passage (410) leads to a working cavity of the first cylinder (110) / the second cylinder (120); The partition plate (300) is arranged between the first cylinder (110) and the second cylinder (120), and a sound damping cavity (420) is formed in a partition plate end surface (310) of the partition plate (300) which cooperates with the sliding vane end surface (220), and the sound damping cavity (420) is located on a reciprocating movement path of the sliding vane (200); The compressor body structure is configured such that, when the sliding vane (200) reciprocatingly moves in the sliding vane groove (210), the neck passage (410) periodically connects the sound damping cavity (420) and the working cavity, and an effective length of the neck passage (410) connected with the sound damping cavity (420) changes with a length of the sliding vane (200) extending out of or retracting into the sliding vane groove (210), that is, the effective length increases when the sliding vane (200) extends outwards, and the effective length decreases when the sliding vane (200) retracts inwards.

2. The compressor body structure of claim 1, wherein The sliding vane (200) comprises a sliding vane head (230) located on one side of an opening of the sliding vane groove (210); The opening of the neck passage (410) extends to a side close to the sliding vane head (230) along a reciprocating extension / retraction direction of the sliding vane (200).

3. The compressor body structure of claim 2, wherein The neck passage (410) is arranged obliquely on the sliding vane end surface (220); The opening of the neck passage (410) is formed with a flared structure (430).

4. The compressor body structure of claim 3, wherein The first cylinder (110) / the second cylinder (120) is provided with an air inlet and an air outlet located on both sides of the sliding vane groove (210), so that the sliding vane (200) divides the working cavity into a high-pressure cavity and a low-pressure cavity; The sliding vane (200) further comprises a sliding vane side surface (240) which abuts against the sliding vane groove (210), and the opening of the neck passage (410) is located on the sliding vane side surface (240), so that the neck passage (410) connects the sound damping cavity (420) and the high-pressure cavity, or the neck passage (410) connects the sound damping cavity (420) and the low-pressure cavity.

5. The compressor body structure according to any one of claims 2 to 4, characterized by, The partition plate end surface (310) further abuts against the first cylinder (110) / the second cylinder (120); The sound damping cavity (420) is a blind hole formed in the partition plate end surface (310).

6. The compressor body structure of claim 5, wherein The diameter of the sound damping cavity (420) is greater than the width of the sliding vane groove (210). The length of the neck passage (410) is greater than the maximum distance between the muffling cavity (420) and the slider head (230) when the slider (200) reciprocates.

7. The compressor body structure of claim 1, wherein The sound deadening frequency of the sound deadening cavity (420) is is: ； wherein, c V is the sound speed of the coolant, S A0 is the cross-sectional area of the neck passage (410), V Veff is the effective volume of the sound attenuation cavity (420), l L is the effective length of the neck passage (410).

8. A compressor characterized by, Comprise: The compressor body structure according to any one of claims 1 to 7; First and second flanges (510, 520) are respectively arranged on the sides of the first and second cylinders (110, 120) away from the partition (300), forming closed working chambers in the first and second cylinders (110, 120); A crankshaft (600) provided with first and second eccentric portions, the crankshaft (600) is sequentially arranged in the first and second flanges (510, 520); First and second rollers (710, 720) are respectively sleeved on the first and second eccentric portions and located in the working chambers of the first and second cylinders (110, 120); When the compressor is running, the slider (200) reciprocates along the slider groove (210), thereby changing the effective length of the connection between the neck passage (410) and the muffling cavity (420).

9. The compressor of claim 8, wherein, The eccentric angles of the first and second eccentric portions are 180° apart.

10. An air conditioner characterized by comprising: Comprise: The compressor according to any one of claims 8 to 9.

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