Flange structure, compressor and air conditioner

Abstract

The present invention provides a flange structure, a compressor and an air conditioner, which relates to the technical field of air conditioning and solves the technical problems of short exhaust path, complex air flow pulsation and high noise. The flange structure includes a flange body, an exhaust port is arranged through the flange body, and the exhaust port is arranged at the neck position of the flange body; a separation groove is arranged in the exhaust port; the extension line of the exhaust port is located within the inner diameter range of the motor stator; an exhaust groove is arranged on the end surface of the flange body; the compressor includes a flange structure; and the air conditioner includes a compressor. The present invention sets the exhaust port at the neck position of the flange, and exhausts air through the inside of the flange. Since the length of the flange neck is greater than the thickness of the flange plate, the exhaust path can be increased, the volume of the pump body can be increased, the exhaust resistance of the inner wall of the exhaust port to the gas is increased, and the cooling capacity is improved; the gas is discharged from the inside, and the sound of the mechanical operation is reduced by the flange itself, and the impact of the valve plate on the flange is reduced, thereby achieving noise reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a flange structure, a compressor and an air conditioner. Background Art

[0002] The refrigerant circuit of the air conditioner is usually equipped with a compressor, a pressure reducing device, an indoor heat exchanger, an outdoor heat exchanger, a four-way switching valve, a storage device, etc. In the prior art, a rotary compressor has a closed housing, an upper flange, a lower flange, a crankshaft, a cylinder, a piston, and a motor. The upper flange and the lower flange are arranged in the closed housing and support the crankshaft. The cylinder is arranged between the upper flange and the lower flange. An exhaust port is arranged on the upper flange or the lower flange. The piston is located in the cylinder and forms a compression chamber together with the upper flange and the lower flange. The crankshaft is provided with an eccentric portion, and the piston is sleeved on the eccentric portion. An air intake port is provided on one side of the cylinder. The exhaust port and the air intake port are respectively connected to the compression chamber. The gas refrigerant enters from the air intake port and is compressed in the compression chamber, and then is discharged from the exhaust port to the motor and passes through the gap between the stator and the rotor of the motor.

[0003] The applicant has found that the prior art has at least the following technical problems:

[0004] like Figure 1 As shown, in the prior art, the exhaust port 1 located on the upper flange or the lower flange for the compressed refrigerant to pass through is arranged on the flange disk surface 2 corresponding to the outer side of the inner hole of the motor stator. Not only is the exhaust path short, but the exhaust resistance is large, resulting in complex air flow pulsation, loud compressor noise, and low energy efficiency. Moreover, since the exhaust port is located outside the inner hole of the stator, the compressed gas discharged from the exhaust port during the operation of the compressor is not filtered, which will bring out the refrigeration oil that lubricates the pump body, affecting the oil content of the compressor and thus affecting the energy efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a flange structure, a compressor and an air conditioner to solve the technical problems existing in the prior art such as short exhaust path, complex air flow pulsation and high noise.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A flange structure provided by the present invention comprises a flange body, wherein an exhaust port is provided through the flange body, and the exhaust port is opened at a position of the flange body corresponding to a neck.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] As a further improvement of the present invention, a separation groove is provided in the exhaust port.

[0010] As a further improvement of the present invention, the extension line of the exhaust port is located within the inner diameter range of the motor stator.

[0011] As a further improvement of the present invention, the extension line of the exhaust port is located within the circle surrounded by the outer diameter of the eccentric circle of the crankshaft.

[0012] As a further improvement of the present invention, the number of the separation grooves is one or more, and all of the separation grooves are regularly or irregularly arranged along the length direction of the exhaust port.

[0013] As a further improvement of the present invention, an exhaust groove is provided on the end surface of the flange body, and one end of the exhaust groove extends to the exhaust port.

[0014] As a further improvement of the present invention, the width of the exhaust groove is not greater than the diameter of the exhaust port.

[0015] As a further improvement of the present invention, the width of the exhaust groove is equal to 1 / 2 of the diameter of the exhaust port.

[0016] As a further improvement of the present invention, the end of the exhaust groove away from the exhaust port is located within the diameter range of the cylinder.

[0017] As a further improvement of the present invention, the exhaust port diameter D2 = {(D-D1)*Q / 2}*10 3 , Q=H / (D*e)=0.05-0.2, d is the shaft diameter, H is the cylinder height, D is the cylinder diameter, e is the crankshaft eccentricity, n is the rotational speed, δ is the single-sided clearance.

[0018] The present invention provides a compressor, comprising the flange structure.

[0019] As a further improvement of the present invention, the compressor is a rotary compressor.

[0020] The present invention provides an air conditioner, comprising the compressor.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the flange structure provided by the present invention, the exhaust port is arranged inside the flange, that is, at the flange neck position, and the exhaust is exhausted through the flange. Since the length of the flange neck is greater than the thickness of the flange plate, the exhaust path can be increased, the volume of the pump body can be increased, the exhaust resistance of the inner wall of the exhaust port to the gas is increased, and the cooling capacity is improved; the gas is discharged from the inside, the sound of the mechanical operation is reduced and eliminated by the flange itself, and the impact force of the valve plate on the flange is reduced, thereby achieving noise reduction.

[0023] In a further improvement of the present invention, after the exhaust gas is discharged from the inside, it directly rushes to the motor enameled wire in the motor stator. The motor enameled wire acts as a filter to filter the refrigerant oil, thereby reducing the oil content and improving energy efficiency.

[0024] In a further improvement of the present invention, a separation groove is milled inside the exhaust port to increase the attachment area and separate the refrigerant oil. After separation, the refrigerant oil falls back to the roller from the exhaust port under the action of gravity when the compressor is not running, and continues to lubricate the parts.

[0025] In a further improvement of the present invention, an exhaust groove is provided on the inlet side of the exhaust port to guide the exhaust and facilitate the discharge of gas. The size of the exhaust groove cannot be too large. If the exhaust groove is too large, it is easy to leak. If the exhaust groove is too small, the exhaust is not smooth. The best specification is that the width of the exhaust groove is 1 / 2 of the exhaust port specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of a structure in which an exhaust port is arranged on a flange part in the prior art;

[0028] Figure 2 It is a schematic structural diagram of the flange structure of the present invention viewed from one side of the flange disc surface;

[0029] Figure 3 It is a schematic structural diagram of the flange structure of the present invention viewed from the flange neck side;

[0030] Figure 4 is a side sectional view of the flange structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the crankshaft in the compressor of the present invention;

[0032] Figure 6 yes Figure 5 Side view of

[0033] Figure 7 It is a structural schematic diagram of the flange structure of the present invention after being assembled.

[0034] In the figure, 1, exhaust port; 2, flange surface; 3, neck; 4, crankshaft; 5, roller; 6, exhaust groove; 7, cylinder. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0036] like Figure 4 As shown, Figure 4 It is a side cross-sectional view of a flange structure; the present invention provides a flange structure, including a flange body, a vent 1 is provided through the flange body, and the vent 1 is opened at a position of the flange body corresponding to the neck 3. Specifically, the vent 1 is provided through the flange neck 3 and extends to the surface of the flange disc 2, so that the gas is discharged from the inside of the flange.

[0037] By setting the exhaust port inside the flange, that is, at the flange neck position, the exhaust is exhausted through the flange. Since the flange neck length is greater than the flange thickness, the exhaust path can be increased, the pump body volume can be increased, the exhaust resistance of the inner wall of the exhaust port to the gas is increased, and the cooling capacity is improved; the gas is discharged from the inside, the sound of the mechanical operation is reduced and eliminated by the flange itself, and the impact of the valve plate on the flange is weakened, thereby achieving noise reduction.

[0038] In order to reduce the amount of lubricating oil carried out by the gas when the compressor is running, in the present invention, a separation groove is arranged in the exhaust port 1. The number of the separation grooves is one or more, and all the separation grooves are arranged regularly or irregularly along the length direction of the exhaust port 1.

[0039] Specifically, the separation groove is a milling groove, and the shape, size and number are not limited here. The separation groove can be set along the entire circle or a local area of ​​the circumference of the exhaust port 1, and all the separation grooves can also be set regularly or irregularly. The separation groove is set only to increase the contact area between the gas and the inner wall of the exhaust port 1, increase the adhesion area, and separate the gas and oil as much as possible. When the compressor is not in use, the separated oil flows back to the roller 5 under the action of gravity to lubricate the roller 5.

[0040] like Figure 3 As shown, the extension line of the exhaust port 1 is located within the inner diameter of the motor stator. Through the above structural design, the gas is discharged from the exhaust port 1 and directly enters the inner hole of the motor stator. The inner hole is provided with an enameled wire as an electromagnetic coil, so that the gas passes through the enameled wire and is discharged. The enameled wire can act as a filter to further filter out the refrigerant oil, so as to avoid a large amount of refrigerant oil being brought out during exhaust, which causes the problem of low oil content in the compressor, and can also improve energy efficiency.

[0041] Furthermore, based on the above technical solution, the extension line of the exhaust port 1 is located within the circle surrounded by the outer diameter of the eccentric circle of the crankshaft 4 .

[0042] The flange body includes a flange disc surface 2 and a neck 3. An exhaust groove 6 is provided on the flange disc surface 2 of the flange body, that is, on the flange end surface. One end of the exhaust groove 6 extends to the exhaust port 1. The exhaust groove 6 is used for gas guidance. The shape of the exhaust groove 6 is not specifically limited here, and any shape is acceptable. Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the exhaust groove 6 is configured as a waist-shaped groove.

[0043] It should be noted that, since too large an exhaust groove 6 may easily cause air leakage, and too small an exhaust groove may cause difficulty in exhausting, in the present invention, the width of the exhaust groove 6 is not greater than the diameter of the exhaust port 1 .

[0044] In the best embodiment, the width of the exhaust groove 6 is equal to 1 / 2 of the diameter of the exhaust port 1 .

[0045] like Figure 3 As shown, the end of the exhaust groove 6 away from the exhaust port 1 is located within the cylinder diameter range.

[0046] Exhaust port 1 diameter D2 = {(D-D1)*Q / 2}*10 3 , Q=H / (D*e)=0.05-0.2, d is the shaft diameter, H is the cylinder height, D is the cylinder diameter, e is the crankshaft eccentricity, n is the rotational speed, δ is the single-sided clearance.

[0047] The present invention provides a compressor, comprising the above-mentioned flange structure.

[0048] The compressor is a rotary compressor.

[0049] like Figure 7 As shown, the rotary compressor also includes a crankshaft 4 and a cylinder 7. The crankshaft 4 is supported by a flange structure. The flange structure can be an upper flange or a lower flange. The cylinder 7 is arranged between the upper and lower flanges, and the air inlet is also arranged between the upper and lower flanges. Figure 5 and Figure 6 As shown, the crankshaft 4 has an eccentric portion, and the outer diameter of the crankshaft eccentric circle is the outer diameter of the eccentric portion; the valve plate of the cylinder 7 is fixed on the eccentric portion of the crankshaft 4.

[0050] The present invention provides an air conditioner, comprising the above-mentioned compressor.

[0051] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 2 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A flange structure, comprising a flange body, wherein an exhaust port is provided through the flange body, wherein: The exhaust port is opened at a position of the flange body corresponding to the neck; a separation groove is arranged in the exhaust port; the number of the separation grooves is one or more, and all the separation grooves are regularly or irregularly arranged along the length direction of the exhaust port.

2. The flange structure according to claim 1, characterized in that: The extension line of the exhaust port is located within the inner diameter range of the motor stator.

3. The flange structure according to claim 2, characterized in that: The extension line of the exhaust port is located within the circle surrounded by the outer diameter of the eccentric circle of the crankshaft.

4. The flange structure according to claim 1, characterized in that: An exhaust groove is arranged on the end surface of the flange body, and one end of the exhaust groove extends to the exhaust port.

5. The flange structure according to claim 4, characterized in that: The width of the exhaust groove is not greater than the diameter of the exhaust port.

6. The flange structure according to claim 5, characterized in that: The width of the exhaust groove is equal to 1 / 2 of the diameter of the exhaust port.

7. The flange structure according to claim 4, 5 or 6, characterized in that: The end of the exhaust groove away from the exhaust port is located within the diameter range of the cylinder.

8. The flange structure according to claim 1, characterized in that: The exhaust port diameter D2 = {(D-D1)*Q / 2}*10 3 , Q=H / (D*e)=0.05-0.2, d is the shaft diameter of the crankshaft matched with the flange structure, H is the cylinder height of the cylinder matched with the flange structure, D is the cylinder diameter of the cylinder matched with the flange structure, e is the eccentricity of the crankshaft matched with the flange structure, n is the rotational speed of the crankshaft matched with the flange structure, δ is the single-sided clearance between the inner hole of the flange structure and the long axis of the crankshaft.

9. A compressor, characterized in that: It comprises a flange structure as described in any one of claims 1 to 8.

10. The compressor according to claim 9, characterized in that The compressor is a rotary compressor.

11. An air conditioner, characterized in that: Comprising a compressor as described in any one of claims 9-10.

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