CN211039043U - Pump body structure, compressor and refrigeration and heating equipment - Google Patents

Abstract

The utility model provides a pump body structure, compressor and refrigeration equipment of heating, pump body structure still have the suction channel that feeds through first cylinder and second cylinder and pass the baffle setting including the first cylinder, baffle and the second cylinder that set gradually, and suction channel still communicates the sympathetic response structure that is used for making an uproar, and the sympathetic response structure is including locating the sympathetic response cavity and the sympathetic response passageway of intercommunication sympathetic response cavity and suction channel of baffle and second cylinder combination department. The utility model provides a pump body structure, compressor and refrigeration equipment of heating, suction channel intercommunication sympathetic response structure, sympathetic response structure are including sympathetic response cavity and sympathetic response passageway, sympathetic response passageway intercommunication sympathetic response cavity and suction channel. The resonance structure is equivalent to an acoustic filter, the resonance structure has inherent frequency, the frequency band of the inherent frequency is designed into the frequency band close to the main frequency band of the noise, and the noise close to the fixed frequency is oscillated and dissipated back and forth in the resonance cavity to filter most of the noise.

Description

Pump body structure, compressor and refrigeration and heating equipment

Technical Field

The utility model belongs to the technical field of the compressor, more specifically say, relate to a pump body structure, compressor and refrigeration equipment of heating.

Background

The compressor is a core component in refrigeration and heating equipment such as an air conditioner, a refrigerator and the like, the air suction pipe sucks low-temperature low-pressure refrigerant gas, the piston is driven by the operation of the motor to compress the refrigerant gas, and then the high-temperature high-pressure refrigerant gas is discharged to the exhaust pipe to provide power for a refrigeration cycle. The compressor generates a large noise in the exhaust process, and the noise is an important factor influencing the comfort of household appliances such as air conditioners, refrigerators and the like. At present, the reduction of the exhaust noise of the compressor is mainly realized by optimizing a silencer, however, the existing silencer cannot achieve the ideal effect due to the limitation of the internal space of the compressor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pump body structure to solve the not good technical problem of muffler sound-absorbing effect who exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a pump body structure, including the first cylinder, baffle and the second cylinder that set gradually, first cylinder is used for connecting the reservoir, pump body structure still has the intercommunication first cylinder with the second cylinder just passes the inhalant canal that the baffle set up, inhalant canal still intercommunication has the sympathetic response structure that is used for making an uproar to fall, the sympathetic response structure is including locating the baffle with the sympathetic response cavity and the intercommunication of second cylinder combination department the sympathetic response cavity with the sympathetic response passageway of inhalant canal.

In one embodiment, the resonance cavity includes a first cavity disposed on the partition plate and a second cavity disposed on the second cylinder, and the first cavity and the second cavity are disposed opposite to each other.

In one embodiment, the resonance cavity is a first cavity arranged on the partition board, and the resonance channel is arranged on one side, facing the partition board, of the second cylinder.

In one embodiment, the first cavity is in a through hole shape, and two ends of the first cavity penetrate through the partition plate; or, the first cavity is groove-shaped, and one end of the opening of the first cavity is arranged on one side of the partition board facing the second cylinder.

In one embodiment, the first cavity extends to the second cylinder to form a second cavity, and the second cavity is arranged on one side, facing the partition plate, of the second cylinder.

In one embodiment, the resonance cavity is a second cavity arranged on one side of the second cylinder facing the partition plate, and the resonance channel is arranged on one side of the partition plate facing the second cylinder.

In one embodiment, the air suction passage includes a first passage provided through the partition plate and a second passage communicating the first passage and the second cylinder, and the second passage is opened in the second cylinder.

In one embodiment, the second channel comprises an extension channel formed by extending the first channel in parallel in the axial direction and an inclined channel which is obliquely arranged so that the extension channel is communicated to the second cylinder inner cavity; or the second channel is an inclined channel which is obliquely arranged and extends to the inner cavity of the second cylinder.

The utility model also provides a compressor, including foretell pump body structure, the compressor still includes the bent axle and is used for supporting the bearing of bent axle, the bent axle passes in proper order first cylinder the baffle with the second cylinder sets up.

The utility model also provides a refrigeration and heating equipment, including foretell compressor.

The utility model provides a pump body structure, compressor and refrigeration equipment of heating's beneficial effect lies in: compared with the prior art, the utility model discloses pump body structure includes first cylinder, baffle and second cylinder, and the passageway of breathing in communicates first cylinder, second cylinder and runs through the baffle setting, and first cylinder breathes in through the induction port of first cylinder, and the second cylinder breathes in through the passageway of breathing in, makes the air current discharge in proper order from first cylinder, passageway of breathing in, second cylinder. The suction channel intercommunication has the sympathetic response structure that is used for making an uproar to fall, and the sympathetic response structure is including sympathetic response cavity and sympathetic response passageway, and sympathetic response passageway intercommunication sympathetic response cavity and suction channel, the combination department of baffle and second cylinder is located to the sympathetic response cavity. The resonance structure is equivalent to an acoustic filter, the resonance structure has inherent frequency, the frequency band of the inherent frequency is designed into the frequency band close to the main frequency band of the noise, and the noise close to the fixed frequency oscillates back and forth in the resonance structure to dissipate so as to filter most of the noise.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 without inventive labor.

Fig. 1 is a sectional view of a pump body structure according to an embodiment of the present invention;

Fig. 2 is a three-dimensional structure diagram of a partition board provided by the embodiment of the present invention;

Fig. 3 is a perspective structural view of a second cylinder provided in the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a first cylinder; 2-a separator; 3-a second cylinder; 4-a resonant structure; 41-resonance cavity; 411-a first cavity; 412-a second cavity; 42-resonance channel; 5-a suction channel; 51-a first channel; 52-a second channel; 521-an extension channel; 522-inclined channels; 6-upper bearing; 7-lower bearing.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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 are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, a pump body structure according to an embodiment of the present invention will now be described.

In one embodiment of the pump body structure, the pump body structure comprises a first cylinder 1, a partition plate 2 and a second cylinder 3 which are sequentially arranged, the partition plate 2 is arranged between the first cylinder 1 and the second cylinder 3 in a spaced manner, the pump body structure is provided with a suction channel 5 which is communicated with the first cylinder 1 and the second cylinder 3, and the suction channel 5 is arranged through the partition plate 2. When the pump structure is exhausting, the first cylinder 1 sucks air through the intake port of the first cylinder 1, and the second cylinder 3 sucks air from the first cylinder 1 through the intake passage 5. The air suction channel 5 is provided with a resonance structure 4 for reducing noise, and the resonance structure 4 comprises a resonance cavity 41 and a resonance channel 42. When the reservoir is connected to the first cylinder 1, the resonance cavity 41 is arranged at the joint of the partition board 2 and the second cylinder 3, and the resonance channel 42 is communicated with the resonance cavity 41 and the air suction channel 5. The first cylinder 1 can be an upper cylinder, and the second cylinder 3 can be a lower cylinder; or the first cylinder 1 is a lower cylinder and the second cylinder 3 is an upper cylinder. When the pump body structure exhausts, the first cylinder 1 and the second cylinder 3 are communicated through the air suction channel 5 penetrating through the partition plate 2, so that the cross section area of the channel through which the air flow passes is suddenly changed when the air flow flows, and particularly at the air suction channel 5, the air flow can generate disturbance and generate noise. In order to reduce noise, a relatively sealed resonance cavity 41 is provided between the first cylinder 1 and the second cylinder 3, and the resonance cavity 41 and the intake passage 5 are communicated through a resonance passage 42. The resonance cavity 41 is connected with the air suction channel 5 through the resonance channel 42, and a resonance system can be formed. The column of air in the resonance channel 42 resembles a piston with a certain acoustic mass and the resonance cavity 41 resembles a spring with a certain acoustic loss. When the air column vibrates, the air column rubs against the inner wall of the resonant passage 42 to generate a certain acoustic resistance, similar to the case where the suction passage 5 is connected with a bypass filter. When sound waves are incident on the mouth of the resonant cavity 41, a portion of the sound energy will be reflected back to the sound source because of the sudden change in acoustic impedance. Meanwhile, under the action of the sound waves, the air column in the resonance channel 42 vibrates, and the friction damping generated during the vibration converts a part of sound energy into heat energy to be dissipated. When the natural frequency of the resonance structure 4 is close to the sound wave frequency of the noise, a resonance phenomenon occurs, the air column velocity in the resonance channel 42 is the maximum, the friction loss is the maximum, and the absorbed sound energy also reaches the maximum. Thus, only a small amount of sound energy is radiated out, thereby achieving the purpose of noise reduction.

The pump body structure of the embodiment comprises a first cylinder 1, a partition plate 2 and a second cylinder 3, wherein an air suction channel 5 is communicated with the first cylinder 1 and the second cylinder 3 and penetrates through the partition plate 2, the first cylinder 1 sucks air through an air suction port of the first cylinder 1, the second cylinder 3 sucks air through the air suction channel 5, and air flow is discharged from the first cylinder 1, the air suction channel 5 and the second cylinder 3 in sequence. The suction channel 5 is communicated with a resonance structure 4 for silencing, the resonance structure 4 comprises a resonance cavity 41 and a resonance channel 42, the resonance channel 42 is communicated with the resonance cavity 41 and the suction channel 5, and the resonance cavity 41 is arranged at the joint of the partition plate 2 and the second cylinder 3. The resonance structure 4 is equivalent to an acoustic filter, the resonance structure 4 has a natural frequency, the frequency band of the natural frequency is designed to be a frequency band close to the main frequency band of the noise, and the noise close to the fixed frequency oscillates back and forth in the resonance structure 4 to dissipate most of the noise.

Referring to fig. 2 and 3, in one embodiment of the resonance cavity 41, the resonance cavity 41 includes a first cavity 411 disposed on the partition board 2 and a second cavity 412 disposed on the second cylinder 3, and the first cavity 411 and the second cavity 412 are in direct communication to form a resonance cavity 41. The size and depth of the resonance cavity 41 may be selected according to the frequency design of the noise, and is not limited herein. When the thickness of the partition board 2 is small, the depth of the resonance cavity 41 required may be larger than the thickness of the partition board 2, and therefore the resonance cavity 41 is composed of the first cavity 411 in the partition board 2 and the second cavity 412 of the second cylinder 3, and the resonance cavity 41 extends toward the second cylinder 3 by a portion to satisfy the depth of the resonance cavity 41. In this embodiment, the first cavity 411 of the resonance cavity 41 may be a through hole shape, both ends of the first cavity 411 penetrate through the partition board 2, the upper end of the first cavity 411 is sealed by the lower end surface of the first cylinder 1, and the lower end of the first cavity 411 is connected to the second cavity 412; or the first cavity of the resonance cavity 41 is groove-shaped, the upper end of the first cavity does not penetrate through the partition board 2, and the lower end of the first cavity is connected to the second cavity 412.

In another embodiment of the resonance cavity, the resonance cavity is a first cavity disposed on the partition board, the opening of the first cavity 411 is disposed on a side of the partition board facing the second cylinder, and the surface of the second cylinder can close the opening of the first cavity. In this embodiment, the depth of the resonance cavity is less than or equal to the thickness of the partition plate, and the resonance cavity is only arranged on the partition plate 2, so that the depth requirement of the resonance cavity can be met. In this embodiment, the first cavity of the resonance cavity may be a through hole shape, both ends of the first cavity penetrate through the partition board, the upper end of the first cavity is defined by the lower end surface of the first cylinder, the lower end of the first cavity is defined by the upper end surface of the second cylinder, and the resonance channel 42 may be disposed on the surface of the partition board or the second cylinder and communicated with the first cavity.

In another embodiment of the resonance cavity, the resonance cavity is a second cavity arranged in the second cylinder, an opening of the second cavity is arranged on a side of the second cylinder facing the partition board, and the surface of the partition board can close the opening of the second cavity. In this embodiment, the second cylinder is generally thicker and the second chamber is recessed within the second cylinder.

In one of the embodiments of the resonance cavity 41, the resonance cavity 41 is provided adjacent to the suction passage 5 so as to communicate the resonance cavity 41 and the suction passage 5 through the resonance passage 42. Specifically, the resonance cavities 41 are provided on both sides of the circumferential direction of the intake passage 5, or the resonance cavities 41 are provided on the radially outer side of the intake passage 5. Wherein, the circumference direction of the air suction channel 5 is the same as the circumference direction of the second cylinder 3, and the radial direction of the air suction channel 5 is the same as the radial direction of the second cylinder 3.

Alternatively, the cross-section of the resonance cavity 41 includes, but is not limited to, circular, elliptical, and fan-shaped. The axial direction of the resonance cavity 41 is parallel to the axial direction of the first cylinder 1 and the second cylinder 3, and the cross section of the resonance cavity 41 is perpendicular to the axial direction of the resonance cavity 41.

In any of the embodiments of the resonance cavity 41 described above, the resonance passage 42 may be provided so as to communicate with the resonance cavity 41. The resonance cavity 41 and the air suction channel 5 are both vertically arranged, and the resonance channel 42 can be horizontally arranged for communicating the resonance cavity 41 and the air suction channel 5. In order to facilitate the processing of the resonance channel 42, the resonance channel 42 may be disposed on a surface of the partition board 2 facing one side of the second cylinder 3 or on a surface of the second cylinder 3 facing one side of the partition board 2, and extend along the surfaces, after the first cylinder 1, the partition board 2, and the second cylinder 3 are assembled, the joint surface of the partition board 2 and the second cylinder 3 defines the resonance channel 42, so that only two ends of the resonance channel 42 can communicate with the resonance cavity 41 and the air suction channel 5. Specifically, the resonance passage 42 is provided on the lower surface of the partition plate 2, and the upper surface of the second cylinder 3 closes the side surface of the resonance passage 42; alternatively, the resonance passage 42 is provided on the upper surface of the second cylinder 3, and the lower surface of the partition plate 2 closes the side surface of the resonance passage 42.

Alternatively, the resonance channel 42 includes, but is not limited to, straight, curved, or bent shapes.

Referring to fig. 1 to 3, in one embodiment of the suction passage 5, the suction passage 5 includes a first passage 51 and a second passage 52. The first passage 51 is disposed through the partition plate 2, the second passage 52 communicates the first passage 51 with the second cylinder 3, the second passage 52 extends to the inside of the cylinder of the second cylinder 3, that is, one end of the second passage 52 is connected to the first passage 51, and the other end of the second passage 52 penetrates the inner wall of the second cylinder 3. More specifically, the upper end of the first passage 51 directly communicates with the suction port of the first cylinder 1, the lower end of the first passage 51 communicates with the upper end of the second passage 52, and the lower end of the second passage 52 penetrates the inner wall of the second cylinder 3 to communicate the first cylinder 1 with the second cylinder 3.

Further, referring to fig. 1 and 3, in one embodiment of the suction channel 5, the second channel 52 includes an extended channel 521 and an inclined channel 522. The extension passage 521 is formed by extending the first passage 51, the cross section of the extension passage 521 is the same as the cross section of the first passage 51, and the extension passage 521 and the first passage 51 are arranged oppositely. The inclined passage 522 is obliquely arranged, and two ends of the inclined passage are respectively connected with the extending passage 521 and the inner cavity of the second cylinder 3. Specifically, the axial directions of the first passage 51 and the extension passage 521 are arranged in parallel with the axial direction of the second cylinder 3, and the extension direction of the inclined passage 522 is arranged to intersect the axial direction of the second cylinder 3. The extended passage 521 extends the length of the vertical portion of the suction passage 5, making the air flow in the suction passage 5 smoother. The inner cavity of the second cylinder 3 is located in the middle of the second cylinder 3, the extension channel 521 is arranged at the edge of the second cylinder 3, and the inclined channel 522 is arranged to enable the air suction channel 5 to extend to the inner cavity of the second cylinder 3.

In another embodiment of the suction channel 5, the second channel 52 is an inclined channel, which communicates directly with the first channel 51.

The embodiment of the utility model provides a still provide a compressor, the compressor is arranged in refrigeration and heating equipment such as air conditioner, refrigerator.

In one embodiment of the compressor, the compressor comprises the pump body structure in any one of the above embodiments, and further comprises an upper bearing 6 and a lower bearing 7. The upper bearing 6, the first cylinder 1, the partition plate 2, the second cylinder 3 and the lower bearing 7 are sequentially arranged, and the upper bearing 6 and the lower bearing 7 are respectively used for supporting the main shaft and the auxiliary shaft.

The compressor of above-mentioned embodiment has adopted the pump body structure in above-mentioned embodiment, and aspiration channel 5 intercommunication first cylinder 1, second cylinder 3 and run through baffle 2 setting, and aspiration channel 5 intercommunication has the sympathetic response structure 4 that is used for the amortization, and sympathetic response structure 4 includes sympathetic response cavity 41 and sympathetic response passageway 42, and sympathetic response cavity 41 and aspiration channel 5 are communicated to sympathetic response passageway 42, and the combination department of baffle 2 and second cylinder 3 is located to sympathetic response cavity 41. The resonance structure 4 is equivalent to an acoustic filter, the resonance structure 4 has a natural frequency, the frequency band of the natural frequency is designed to be a frequency band close to the main frequency band of the noise, and the noise close to the fixed frequency oscillates back and forth in the resonance structure 4 to be dissipated so as to filter the noise of most of compressors.

The embodiment of the utility model provides a still provide a refrigeration and heating equipment, including the compressor in the above-mentioned embodiment, use the compressor in the above-mentioned embodiment, can reduce the noise when compressor moves, can improve refrigeration and heating equipment's user experience, promote the comfort of use. The refrigerating and heating equipment can be an air conditioner, a refrigerator and the like.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Pump body structure, its characterized in that: including the first cylinder, baffle and the second cylinder that set gradually, first cylinder is used for connecting the reservoir, pump body structure still has the intercommunication first cylinder with the second cylinder just passes the inhalant canal that the baffle set up, inhalant canal still intercommunication has the sympathetic response structure that is used for making an uproar to fall, the sympathetic response structure is including locating the baffle with the sympathetic response cavity and the intercommunication of second cylinder combination department the sympathetic response cavity with inhalant canal's sympathetic response passageway.

2. The pump body structure according to claim 1, wherein: the resonance cavity comprises a first cavity body arranged on the partition plate and a second cavity body arranged on the second air cylinder, and the first cavity body and the second cavity body are arranged opposite to each other in a communicated mode.

3. The pump body structure according to claim 1, wherein: the resonance cavity is a first cavity arranged on the partition plate, and the resonance channel is arranged on one side, facing the partition plate, of the second air cylinder.

4. The pump body structure according to claim 3, wherein: the first cavity is in a through hole shape, and two ends of the first cavity penetrate through the partition plate; or, the first cavity is groove-shaped, and one end of the opening of the first cavity is arranged on one side of the partition board facing the second cylinder.

5. The pump body structure according to claim 3, wherein: the first cavity extends to the second cylinder to form a second cavity, and the second cavity is arranged on one side, facing the partition plate, of the second cylinder.

6. The pump body structure according to claim 1, wherein: the resonance cavity is a second cavity arranged on one side, facing the partition plate, of the second cylinder, and the resonance channel is arranged on one side, facing the second cylinder, of the partition plate.

7. The pump body structure according to claim 1, wherein: the air suction channel comprises a first channel penetrating through the partition plate and a second channel communicated with the first channel and the second cylinder, and the second channel is arranged in the second cylinder.

8. The pump body structure according to claim 7, wherein: the second channel comprises an extension channel formed by axially extending the first channel in parallel and an inclined channel which is obliquely arranged so as to enable the extension channel to be communicated to the inner cavity of the second cylinder; or the second channel is an inclined channel which is obliquely arranged and extends to the inner cavity of the second cylinder.

9. A compressor, characterized by: the pump body structure according to any one of claims 1 to 8, wherein the compressor further comprises a crankshaft and a bearing for supporting the crankshaft, the crankshaft being disposed through the first cylinder, the partition plate, and the second cylinder in this order.

10. Refrigeration equipment of heating which characterized in that: comprising the compressor of claim 9.

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