CN109505771B

CN109505771B - Compressor, air conditioning system and vehicle

Info

Publication number: CN109505771B
Application number: CN201710830945.XA
Authority: CN
Inventors: 张骁诚; 王淑艳; 刘国平; 陈佳; 张军; 程清波
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2020-09-29
Anticipated expiration: 2037-09-15
Also published as: CN109505771A

Abstract

The invention relates to the field of vehicle engineering, and provides a compressor, an air conditioning system and a vehicle, wherein the compressor comprises a suction passage and a suction chamber, the suction chamber is communicated with the suction passage through a suction opening, and a silencer structure is arranged in the suction passage, wherein the silencer structure can move in the suction passage according to the displacement of the compressor so as to adjust the blocking area of the suction opening, so that the opening area of the suction opening is adapted to the displacement of the compressor. In the compressor, the structure of the refrigerant inflow part of the compressor under different loads can be adaptively changed, so that the noise of the compressor is effectively reduced. In addition, the compressor has the advantages of simple internal structure, low manufacturing and assembling difficulty and lower cost.

Description

Compressor, air conditioning system and vehicle

Technical Field

The invention relates to the technical field of vehicle engineering, in particular to a compressor, an air conditioning system and a vehicle.

Background

The air conditioning system is an important component of a vehicle, and is more and more concerned, especially, the NVH performance of the air conditioning system is in a very important position in the field of the air conditioning system of the vehicle, at present, more and more refrigerant suction pulsation in a cabin part causes important attention, especially, when a compressor of the air conditioning system works, pulsation noise is generated on a suction side, and the NVH performance is greatly influenced. It has the following disadvantages: the existing silencer structure is fixed, when the compressor changes the discharge capacity according to the actual heat load, the discharge capacity of the compressor is different, the noise of the sucked refrigerant can be distinguished, the fixed silencer structure can not solve the pulsating noise under different suction pressures according to the quantity of the sucked refrigerant, and the problems of complex structure, higher process cost, inconvenient manufacturing and assembling and the like exist in the silencer structure in the existing compressor.

Disclosure of Invention

In view of the above, the present invention is directed to a muffler structure with a variable structure according to the displacement of a compressor, so as to achieve better noise reduction effect according to the requirements of different displacements, or at least to an alternative way of providing a compressor.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a compressor, the compressor includes suction channel and suction chamber, the suction chamber with the suction channel passes through the suction opening intercommunication, be provided with the muffler structure in the suction channel, wherein, the muffler structure sets up to be able to move according to the size of compressor discharge capacity in the suction channel to the regulation is right suction opening's blocks the area, makes suction opening's open area with the size of compressor discharge capacity suits.

Further, one side of the suction passage is connected to a suction port of the compressor, and the other side of the suction passage is provided with a return mechanism, the muffler structure includes a first valve shaft portion and a second valve shaft portion which are oppositely arranged along an axial direction of the suction passage and connected with each other, the first valve shaft portion and the second valve shaft portion respectively face the suction port and the return mechanism, and the muffler structure is configured to be movable along the suction passage under a resultant force of an acting force of suction gas on the first valve shaft portion and an acting force of the return mechanism on the second valve shaft portion.

Furthermore, the silencer structure further comprises a clamping plate arranged between the first valve shaft part and the second valve shaft part, the clamping plate is connected to the inner wall of the air suction channel, a through hole is formed in the center of the clamping plate and can block the first valve shaft part from continuing to move towards the second valve shaft part and the second valve shaft part towards the first valve shaft part, when the first valve shaft part abuts against the clamping plate, the air suction opening is completely positioned on the outer side of the first valve shaft part, and when the second valve shaft part abuts against the clamping plate, the air suction opening is partially positioned on the outer side of the first valve shaft part.

Further, the first valve shaft portion and the second valve shaft portion are connected by an elastic connecting rod, and a gap is formed between the first valve shaft portion and the second valve shaft portion and an inner wall of the air suction passage.

Further, the reset mechanism includes an adjusting air passage connected to the suction passage, the compressor includes an exhaust chamber, the exhaust chamber is communicated with the suction passage through the adjusting air passage, the adjusting air passage is provided with a control valve, the compressor includes a maximum displacement working state, the control valve is set to be closed when the compressor is in the maximum displacement working state, and is opened when the compressor part is in the maximum displacement working state.

Further, the discharge chamber include with adjust the gas vent that the air flue links to each other, the control valve includes the shutoff piece that is used for the shutoff the gas vent and connect in the shutoff piece deviate from the regulating spring of the one end of gas vent, the regulating spring sets up to make by gas pressure compression when the compressor is in maximum discharge capacity operating condition the control valve shutoff the gas vent, when the compressor is not in drive when maximum discharge capacity operating condition the shutoff piece leaves the gas vent.

Furthermore, an oil duct is arranged at the bottom of the air suction chamber, an inlet of the oil duct is communicated with the inside of the air suction chamber, and an outlet of the oil duct is connected to an oil duct of a lubricating system of the compressor.

Further, the air suction chamber comprises two opposite air suction channels at two sides of the air suction channel, and the air suction opening is located at the center of the air suction chamber in the height direction.

According to a second aspect of the present invention, there is provided an air conditioning system provided with the compressor.

According to a third aspect of the present invention, there is provided a vehicle provided with the air conditioning system.

Through the technical scheme, the silencer structure moves in the air suction channel according to the size of the compressor displacement so as to change the blocking area of the air suction opening, so that the opening area of the air suction opening is matched with the size of the compressor displacement, the blocking area of the silencer structure to the air suction opening is smaller under the condition of large compressor displacement, the opening area of the air suction opening is larger, at the moment, the air suction amount at the air suction opening is larger, the opening area is larger, so that the resistance of the air suction opening to the suction gas is smaller, the fluctuation of the sucked refrigeration air is smaller, the flowing noise of the refrigeration air entering the compressor is favorably reduced, and under the condition of small compressor displacement, the blocking area of the silencer structure to the air suction opening is larger, the opening area of the air suction opening is smaller, at the moment, the air suction amount at the air suction opening is smaller, and the air suction opening with the, in conclusion, in the compressor, the structure of the refrigerant inflow part of the compressor under different loads can be adaptively changed, so that the noise of the compressor is effectively reduced. In addition, the compressor has the advantages of simple internal structure, low manufacturing and assembling difficulty and lower cost.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a partial sectional view of a compressor according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of the compressor of FIG. 1 with emphasis on showing a control valve portion;

FIG. 3 is a top plan view of the compressor shown in FIG. 1, with the compressor in a maximum displacement state;

FIG. 4 is a top view of the compressor shown in FIG. 1, with the compressor in a non-maximum displacement state.

Description of reference numerals:

1 suction channel 2 first suction chamber

3 second suction chamber 4 oil channel

5 first valve shaft part 6 second valve shaft part

7 elastic connecting rod 8 position clamping plate

9 exhaust chamber 10 crank chamber

11 control valve 12 silencer structure

13 inhalation opening 14 regulates the airway

15 suction opening 16 closure

Detailed Description

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

In the present invention, it is to be understood that the terms "central", "circumferential", "facing", "deviating" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and also correspond to orientations or positional relationships that are actually used; the use of directional words such as "upper, lower, left and right" generally means upper, lower, left and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves; this is done solely for the purpose of facilitating the description of the invention and simplifying the description without indicating that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to a first aspect of the present invention, there is provided a compressor comprising a suction channel 1 and a suction chamber, the suction chamber is communicated with the suction channel 1 through a suction opening 13, a silencer structure 12 is arranged in the suction channel 1, the silencer structure 12 is arranged to be movable in the suction channel 1 according to the magnitude of the compressor displacement so as to adjust the blocking area of the suction opening 13, so that the opening area of the suction opening 13 is adapted to the magnitude of the compressor displacement.

Through the technical scheme, the silencer structure 12 moves in the suction channel 1 according to the displacement of the compressor to change the blocking area of the suction opening 13, so that the opening area of the suction opening 13 is adapted to the displacement of the compressor, specifically, under the condition of large displacement of the compressor, the blocking area of the silencer structure 12 to the suction opening 13 is smaller, the opening area (the area not blocked by the silencer structure 12) of the suction opening 13 is larger, at the moment, the suction volume at the suction opening 13 is larger, the resistance of the suction opening 13 to the suction gas is smaller due to the larger opening area, the fluctuation of the sucked refrigeration air is smaller, which is beneficial to reducing the flowing noise of the refrigeration air entering the compressor, and under the condition of small displacement of the compressor, the blocking area of the silencer structure 12 to the suction opening 13 is larger, and the opening area of the suction opening 13 is smaller, at this time, the suction amount at the suction opening 13 is small, and the suction opening 13 with a small area is opened to adapt to the discharge capacity of the compressor, so that the noise caused by the flowing of the refrigerant is reduced by throttling. Wherein the silencer structure 12 may be located directly below the suction port 15. In addition, the compressor has the advantages of simple internal structure, low manufacturing and assembling difficulty and lower cost.

Specifically, in the present embodiment, one side of the suction channel 1 is connected to a suction port 15 of the compressor, and the other side of the suction channel 1 is provided with a return mechanism, the muffler structure 12 includes a first valve shaft portion 5 and a second valve shaft portion 6 which are oppositely arranged along an axial direction of the suction channel 1 and are connected to each other, the first valve shaft portion 5 and the second valve shaft portion 6 face the suction port 15 and the return mechanism, respectively, and the muffler structure 12 is configured to be movable along the suction channel 1 by a resultant force of suction gas acting on the first valve shaft portion 5 and a resultant force of the return mechanism acting on the second valve shaft portion 6.

In the embodiment, the suction pressure is generated by the suction gas (the refrigerant air) entering from the suction port 15 and acts on the first valve shaft portion 5 toward the suction port 15, and the restoring mechanism applies a force to the second valve shaft portion 6 on the side opposite to the first valve shaft portion 5, and the muffler structure 12 moves or stands still by the resultant force of the above two forces, for example, when the compressor displacement is large, the gas flow of the suction port 15 is large, the suction pressure is large, and the force to the first valve shaft portion 5 is larger than the force to the second valve shaft portion 6 by the restoring mechanism, and the muffler structure 12 moves toward the second valve shaft portion 6, and during the movement, the force to the second valve shaft portion 6 by the restoring mechanism gradually increases until it is balanced with the force to the first valve shaft portion 5 by the suction pressure, whereas if when the compressor displacement is small, the air flow of the air inlet 15 is small, the suction pressure is small, the acting force of the air inlet on the first valve shaft part 5 is smaller than the acting force of the reset mechanism on the second valve shaft part 6, the silencer structure 12 moves towards the first valve shaft part 5, and in the moving process, the acting force of the reset mechanism on the second valve shaft part 6 is gradually reduced until the acting force is balanced with the acting force of the suction pressure on the first valve shaft part 5.

Further, the muffler structure 12 further includes a blocking plate 8 disposed between the first valve shaft portion 5 and the second valve shaft portion 6, the blocking plate 8 is connected to the inner wall of the air suction channel 1, a through hole is formed in the center of the blocking plate and can block the first valve shaft portion 5 from moving further toward the second valve shaft portion 6 and the second valve shaft portion 6 towards the first valve shaft portion 5, when the first valve shaft portion 5 abuts against the blocking plate 8, the air suction opening 13 is located completely outside the first valve shaft portion 5, and when the second valve shaft portion 6 abuts against the blocking plate 8, the air suction opening 13 is located partially outside the first valve shaft portion 5.

In the present embodiment, the movement range of the silencer structure 12 is limited by providing the blocking plate 8, wherein a through hole is formed in the center of the blocking plate 8 to allow airflow to pass through, the silencer structure 12 at the position where the blocking plate 8 abuts against and is limited by the first valve shaft portion 5 and the second valve shaft portion 6 can block the area of the air suction opening 13, for example, when the blocking plate 8 abuts against the first valve shaft portion 5, the air suction opening 13 is not blocked by the silencer structure 12 at all, and when the blocking plate 8 abuts against the second valve shaft portion 6, the air suction opening 13 is partially blocked by the silencer structure 12, and the area blocked by the silencer structure 12 at this time can be set correspondingly according to the conditions such as the compressor displacement, the compressor internal structure, and the reset mechanism.

The first valve shaft portion 5 and the second valve shaft portion 6 are connected by an elastic connecting rod 7 to provide a buffer function for the first valve shaft portion 5 and the second valve shaft portion 6, and to achieve a function of moving the muffler structure 12 according to the amount of exhaust gas. Also, referring to fig. 1, the first and second valve shaft portions 5 and 6 may be formed of a non-metallic material, and in order to allow the muffler structure 12 to smoothly move in the suction passage 1, a gap may be formed between the first and second valve shaft portions 5 and 6 and an inner wall of the suction passage 1, and it is further preferable that the first and second valve shaft portions 5 and 6 have a hollow cylindrical structure with one end open, a cross section in a horizontal direction (i.e., a left-right direction in fig. 1) is adapted to the suction passage 1, and outer edges may be chamfered to facilitate movement in the suction passage 1.

Referring to fig. 1 and 2, preferably, in the present embodiment, the reset mechanism includes a regulating air passage 14 connected to the suction passage 1, the compressor includes a discharge chamber 9, the discharge chamber 9 communicates with the suction passage 1 through the regulating air passage 14, the regulating air passage 14 is provided with a control valve 11, the compressor includes a maximum displacement operating state and a non-maximum displacement operating state with a displacement smaller than the maximum displacement operating state, and the control valve 11 is configured to be closed when the compressor is in the maximum displacement operating state and to be opened when the compressor is in the non-maximum displacement operating state.

In the embodiment, the exhaust pressure in the exhaust chamber 9 is used as a reset force, the muffler structure 12 is skillfully moved to a proper position by air pressure balance and then stops moving, specifically, the compressor comprises a maximum displacement working state and a non-maximum displacement working state, when the compressor is in the maximum displacement working state, the control valve 11 is closed, at the moment, the muffler structure 12 receives the suction pressure of the refrigeration air entering from the air suction port 15, the muffler structure 12 moves towards the direction of the second valve shaft part 6 until the first valve shaft part 5 abuts against the clamping plate 8, and thus the air suction opening 13 is not blocked completely; when the compressor is in the non-maximum displacement working state, the control valve 11 is opened, the gas in the exhaust chamber 9 is discharged from the regulating gas passage 14 and exerts acting force on the second valve shaft part 6, the second valve shaft part 6 moves towards the first valve shaft part 5, the elastic connecting rod 7 is pressed, then the elastic connecting rod 7 moves upwards against the first valve shaft part 5, the silencer structure 12 moves upwards, so that the blocking area of the suction opening 13 is increased, when the acting force exerted by the discharged gas in the regulating gas passage 14 on the second valve shaft part 6 is equal to the acting force exerted by the sucked gas on the first valve shaft part 5, the silencer structure 12 is stressed in balance and stops moving, therefore, when the non-maximum displacement working state is adopted, the silencer structure 12 blocks the suction opening 13 with the adaptive area according to the displacement of the compressor, so that no matter what kind of working state the compressor is, the silencer structure 12 is cooperatively blocked with the suction opening 13.

Further specifically, as an alternative embodiment, the exhaust chamber 9 may include an exhaust port connected to the regulating air passage 14, the control valve 11 includes a blocking piece 16 for blocking the exhaust port and a regulating spring connected to an end of the blocking piece 16 facing away from the exhaust port, the regulating spring is configured to be compressed by air pressure when the compressor is in the maximum displacement operating state so that the control valve 11 blocks the exhaust port, and when the compressor is in the non-maximum displacement operating state, the pressure of the exhaust chamber 9 is greater than the pressure of the suction chamber, the blocking piece 16 is driven to move downward away from the exhaust port, so that the regulating air passage 14 is communicated with the exhaust chamber 9, and then, the silencer structure 12 is moved upward as a whole by the pressure in the regulating air passage 14.

In addition, preferably, an oil passage 4 is arranged at the bottom of the suction chamber, an inlet of the oil passage 4 is communicated with the inside of the suction chamber, and an outlet of the oil passage 4 is connected to an oil passage of a lubricating system of the compressor, so that the refrigerant air entering the suction chamber falls into the bottom of the suction chamber if carrying the lubricating oil in the compressor, and then flows back to the oil passage of the lubricating system of the compressor through the oil passage 4, thereby effectively reducing the amount of the lubricating oil in the compressor which is lost through the refrigerant air, and further effectively ensuring the service life and the refrigerating performance of the compressor.

Preferably, the suction chambers may include two suction chambers oppositely disposed at both sides of the suction passage 1, for example, referring to fig. 1, two suction chambers including a first suction chamber 2 and a second suction chamber 3, so as to divide the refrigerant air entering the compressor, which facilitates to reduce pulsation caused by high pressure of the refrigerant air due to the single-side suction chamber, and is beneficial to noise reduction. Further preferably, the air suction opening 13 is located at the center of the air suction chamber in the height direction, so that the air entering the air suction chamber is divided into upper and lower sides, which is not only beneficial to further reducing noise, but also beneficial to the lubricating oil in the refrigerating air falling to the bottom of the air suction chamber under the action of gravity.

According to a second aspect of the present invention, there is provided an air conditioning system provided with a compressor according to the present invention. Due to the compressor, the noise of the air conditioning system is obviously reduced, and the air conditioning system has a better refrigeration effect.

According to a third aspect of the invention, there is also provided a vehicle provided with an air conditioning system according to the invention.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A compressor comprising a suction channel (1) and a suction chamber communicating with the suction channel (1) through a suction opening (13), a silencer structure (12) being arranged in the suction channel (1), characterized in that the silencer structure (12) is arranged to be movable in the suction channel (1) according to the size of the compressor displacement in order to adjust the blocking area of the suction opening (13) such that the opening area of the suction opening (13) is adapted to the size of the compressor displacement;

one side of the suction channel (1) is connected with a suction port (15) of the compressor, the other side of the suction channel is provided with a reset mechanism, the silencer structure (12) comprises a first valve shaft part (5) and a second valve shaft part (6) which are oppositely arranged along the axial direction of the suction channel (1) and are connected with each other, the first valve shaft part (5) and the second valve shaft part (6) respectively face the suction port (15) and the reset mechanism, and the silencer structure (12) is arranged to be capable of moving along the suction channel (1) under the combined action of the acting force of suction gas on the first valve shaft part (5) and the acting force of the reset mechanism on the second valve shaft part (6).

2. Compressor according to claim 1, characterized in that the silencer structure (12) further comprises a detent plate (8) arranged between the first valve shaft portion (5) and the second valve shaft portion (6), the blocking plate (8) is connected with the inner wall of the air suction channel (1), a through hole is formed in the center of the blocking plate and can block the first valve shaft part (5) from continuing to move towards the second valve shaft part (6) and the second valve shaft part (6) to continue to move towards the first valve shaft part (5), and when the first valve shaft part (5) abuts against the detent plate (8), the suction opening (13) is located completely outside the first valve shaft part (5), when the second valve shaft part (6) is abutted against the retaining plate (8), the air suction opening (13) is partially positioned outside the first valve shaft part (5).

3. Compressor according to claim 1, characterized in that the first valve shaft part (5) and the second valve shaft part (6) are connected by an elastic connecting rod (7) and that there is a gap between the first valve shaft part (5) and the second valve shaft part (6) and the inner wall of the suction channel (1).

4. Compressor according to claim 1, characterized in that the resetting mechanism comprises a regulating air duct (14) connected to the suction channel (1), the compressor comprising a discharge chamber (9), the discharge chamber (9) communicating with the suction channel (1) through the regulating air duct (14), the regulating air duct (14) being provided with a control valve (11), the compressor comprising a maximum displacement operating state, the control valve (11) being arranged to be closed when the compressor is in the maximum displacement operating state and to be open when the compressor is not in the maximum displacement operating state.

5. A compressor according to claim 4, characterized in that the discharge chamber (9) comprises a discharge opening connected to the regulating gas duct (14), and that the control valve (11) comprises a closure (16) for closing off the discharge opening and a regulating spring connected to the end of the closure (16) facing away from the discharge opening, the regulating spring being arranged to be compressed by the gas pressure when the compressor is in the maximum displacement operating condition so that the control valve (11) closes off the discharge opening and to bring the closure (16) away from the discharge opening when the compressor is not in the maximum displacement operating condition.

6. The compressor as claimed in any one of claims 1-5, wherein an oil passage (4) is provided at the bottom of the suction chamber, and an inlet of the oil passage (4) is communicated with the inside of the suction chamber and an outlet of the oil passage is connected to an oil passage of a lubrication system of the compressor.

7. A compressor according to any one of claims 1-5, characterized in that the suction chamber comprises two oppositely arranged sides of the suction channel (1), the suction opening (13) being located in the middle position in the height direction of the suction chamber.

8. An air conditioning system, characterized in that a compressor according to any one of claims 1-7 is provided.

9. A vehicle characterized by being provided with the air conditioning system of claim 8.