Liquid accumulator support and rotor type compressor

Abstract

The invention provides a liquid accumulator support and a rotor type compressor. The liquid accumulator bracket comprises a first connecting part, a second connecting part and a third connecting part; the first connecting part is used for being matched and welded with a compressor shell; the second connecting part and the third connecting part are respectively connected to two ends of the first connecting part; welding positions are arranged between the second connecting part and the liquid storage device shell and between the third connecting part and the liquid storage device shell, the distance between the welding positions and the vertical bisecting face of the liquid storage device shell is L, the range of L is [0, 12 mm], or / and the welding angle between the second connecting part and the liquid storage device shell and the welding angle between the third connecting part and the liquid storage device shell are r, the welding angle refers to an included angle between a welding surface, facing one side of the liquid storage device shell, of the second connecting part and the third connecting part and a vertical bisection surface of the liquid storage device shell, and the range of r is [72 degrees, 90 degrees]. According to the scheme, the noise of the rotor type compressor can be obviously reduced.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to a liquid storage bracket and a rotor type compressor. Background Art

[0002] like Figure 1-Figure 2 As shown, the existing rotor compressor includes a compressor housing 1, a liquid reservoir bracket 2 and a liquid reservoir housing 3; the liquid reservoir bracket 2 is usually a bent steel plate part, which is trumpet-shaped and has a large opening angle at both ends; one side of the liquid reservoir bracket 2 is welded to the compressor housing 1, and the other two sides are respectively welded to the liquid reservoir housing 3; the welding position between the liquid reservoir bracket 2 and the liquid reservoir housing 3 is located on the radial surface of the liquid reservoir housing 3, that is, the distance between the welding position and the compressor housing 1 is relatively close; the bottom of the liquid reservoir housing 3 is connected to the bottom of the compressor housing 1.

[0003] However, during operation of the motor in the above-mentioned rotary compressor, the vibration of the motor is directly transmitted to the reservoir housing 3 through the compressor housing 1 and the reservoir bracket 2, which is more likely to excite the reservoir mode, resulting in a higher noise in the rotary compressor. Summary of the invention

[0004] The invention provides a liquid storage support and a rotor type compressor to solve the technical problem of high noise of the rotor type compressor.

[0005] In order to solve the above technical problems, the present invention provides a liquid reservoir bracket, comprising a first connecting portion, a second connecting portion and a third connecting portion; the first connecting portion is used to cooperate with the compressor housing and be welded; the second connecting portion and the third connecting portion are respectively connected to the two ends of the first connecting portion; the second connecting portion and the third connecting portion are used to cooperate with the liquid reservoir housing and be welded; a welding position is provided between the second connecting portion and the third connecting portion and the liquid reservoir housing, and the distance between the welding position and the vertical bisector of the liquid reservoir housing is L , the range of L is [0, 12mm], the vertical bisector of the reservoir shell refers to a plane perpendicular to the line between the axis of the compressor shell and the axis of the reservoir shell, and the axis of the reservoir shell is located on the plane, or / and, the welding angle between the second connecting part and the third connecting part and the reservoir shell is r, and the welding angle refers to the angle between the welding surface of the second connecting part and the third connecting part facing the side of the reservoir shell and the vertical bisector of the reservoir shell, and the range of r is [72°, 90°].

[0006] Optionally, the welding position is on a tangential plane of the reservoir shell, and the tangential plane of the reservoir shell is perpendicular to a vertical bisector of the reservoir shell.

[0007] Optionally, at least one notch or through hole is respectively provided at one end of the second connection portion and the third connection portion away from the first connection portion.

[0008] Optionally, the second connection portion and the third connection portion are symmetrically arranged at two ends of the first connection portion with respect to the first connection portion.

[0009] Optionally, a motor is disposed in the compressor housing, and a distance between the first connecting portion and the motor along the axial direction of the compressor housing is greater than 20 mm.

[0010] Optionally, a first transition section is provided between the first connection portion and the second connection portion, and a second transition section is provided between the first connection portion and the third connection portion.

[0011] Optionally, the first transition section and the second transition section are respectively provided with through holes.

[0012] Optionally, the liquid reservoir bracket is integrally formed from a steel plate.

[0013] Optionally, the thickness of the fluid reservoir bracket is in the range of [2.5mm, 4mm].

[0014] The present invention further provides a rotor-type compressor, comprising a compressor housing, a liquid reservoir housing and a liquid reservoir bracket as described in any one of the above items, wherein the liquid reservoir bracket is welded between the compressor housing and the liquid reservoir housing.

[0015] The present invention provides a liquid storage bracket and a rotary compressor, which can significantly reduce the noise of the rotary compressor. The principle is as follows:

[0016] 1. In the prior art, the welding point (i.e., welding position) is close to the compressor housing and far from the tangential surface (i.e., tangential line) of the reservoir housing. The radial vibration of the motor is F, and the component of F to the center of the reservoir housing is f1. In the improved scheme, the welding point (i.e., welding position) is on or near the tangential surface (i.e., tangential line) of the reservoir housing, the radial vibration of the motor is F, and the component of F to the center of the reservoir housing is f2. Due to the changes in the welding angle and welding position, f2 is significantly smaller than f1, that is, the improved scheme can significantly reduce the transmission of the radial vibration of the motor to the reservoir housing, thereby reducing the noise caused by the vibration of the reservoir and achieving vibration reduction and noise reduction.

[0017] 2. In the prior art, the length of the cantilever of the reservoir bracket is L1, which refers to the length from one end of the first connection part to the welding position; the opening width of the reservoir bracket is M1, which refers to the distance between the welding position of the second connection part and the welding position of the third connection part on the same plane. The length of the improved cantilever is L2, and the opening width is M2. Because L1<L2, M1<M2, the improved reservoir bracket has better elasticity and can prevent the vibration of the compressor housing from being transmitted to the reservoir housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a rotor compressor in the prior art.

[0019] Figure 2 yes Figure 1 Simplified top view of .

[0020] Figure 3 It is a structural schematic diagram of a liquid reservoir bracket provided by one embodiment of the present invention.

[0021] Figure 4 yes Figure 3 Top view of the .

[0022] Figure 5 It is a structural schematic diagram of a rotor compressor provided by one embodiment of the present invention.

[0023] Figure 6 yes Figure 5 main view.

[0024] Figure 7 yes Figure 5 Top view of the .

[0025] Figure 8 It is a structural schematic diagram of a rotor compressor provided by one embodiment of the present invention.

[0026] Fig. 9 It is a structural schematic diagram of a liquid reservoir bracket provided by one embodiment of the present invention.

[0027] Fig.10 yes Fig. 9 Top view of the .

[0028] Fig.11 yes Fig. 9 A schematic structural diagram of a liquid reservoir bracket in use.

[0029] Fig.12 It is a schematic top view of a rotor compressor provided by one embodiment of the present invention.

[0030] Fig.13 yes Fig.12 A partial enlarged view of .

[0031] [Description of reference numerals is as follows]:

[0032] Compressor housing-1, liquid reservoir bracket-2, liquid reservoir housing-3;

[0033] Liquid reservoir bracket-10, compressor housing-11, liquid reservoir housing-12;

[0034] First connecting portion 101, second connecting portion 102, third connecting portion 103, first transition section 104, second transition section 105;

[0035] Vertical bisector -121;

[0036] Welding position-1021, first notch-1022, second notch-1023. DETAILED DESCRIPTION

[0037] In order to make the purpose, advantages and features of the present invention clearer, a liquid storage bracket and a rotary compressor proposed by the present invention are further described in detail below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0038] In the description of the present invention, the terms "first", "second", etc. are added for the convenience of description and reference, 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 by the terms "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0039] like Figure 3-Figure 8As shown, this embodiment provides a liquid reservoir bracket 10, including a first connecting portion 101, a second connecting portion 102 and a third connecting portion 103; the first connecting portion 101 is used to cooperate with the compressor housing 11 and be welded; the second connecting portion 102 and the third connecting portion 103 are respectively connected to the two ends of the first connecting portion 101; the second connecting portion 102 and the third connecting portion 103 are used to cooperate with the liquid reservoir housing 12 and be welded; a welding position 1021 is provided between the second connecting portion 102 and the third connecting portion 103 and the liquid reservoir housing 12, and the welding position 1021 is aligned with the vertical bisector 12 of the liquid reservoir housing 12 1 is L, and the range of L is [0, 12mm]. The vertical bisector 121 of the reservoir housing 12 refers to a plane perpendicular to the line between the axis of the compressor housing 11 and the axis of the reservoir housing 12, and the axis of the reservoir housing 12 is located on the plane; or / and, the welding angle between the second connection part 102 and the third connection part 103 and the reservoir housing 12 is r, and the welding angle refers to the angle between the welding surface of the second connection part 102 and the third connection part 103 facing the side of the reservoir housing 12 and the vertical bisector 121 of the reservoir housing 12, and the range of r is [72°, 90°]. It has been verified through experiments that by controlling the welding position or welding angle, the vibration of the motor in the radial direction can be blocked from being transmitted to the reservoir, thereby reducing the noise caused by the vibration of the reservoir, and achieving vibration reduction and noise reduction.

[0040] The liquid reservoir bracket 10 provided in this embodiment can significantly reduce the noise of the rotary compressor, and its principle is as follows:

[0041] 1. If Figure 2 As shown, in the prior art, the welding point (i.e., welding position) is close to the compressor housing 1 and far from the tangential surface (i.e., tangential line) of the reservoir housing 3. The vibration of the motor in the radial direction is F, and the component force of F toward the center of the reservoir housing 3 is f1. In the improved scheme, as Figure 7 As shown, the welding point (ie, welding position 1201) is on the tangential surface (ie, tangential line, Figure 5 The portion of the bold line segment in the vertical bisector 121 of the reservoir housing 12 is a partial tangent line of the reservoir housing 12) or near the tangent surface, the vibration of the motor in the radial direction is F, and the component force of F to the center of the reservoir housing 12 is f2. Due to the change of the welding angle and the welding position 1201, f2 is significantly smaller than f1, that is, the improved scheme can significantly reduce the transmission of the vibration of the motor in the radial direction to the reservoir housing 12, thereby reducing the noise caused by the vibration of the reservoir and achieving vibration reduction and noise reduction.

[0042] 2. If Figure 2As shown, in the prior art, the length of the cantilever of the liquid reservoir bracket 2 is L1, and the cantilever refers to the length from one end of the first connection part to the welding position; the opening width of the liquid reservoir bracket 2 is M1, and the opening width refers to the distance between the welding position of the second connection part and the welding position of the third connection part on the same plane. Figure 7 As shown, the length of the cantilever is L2, and the width of the opening is M2. Because L1<L2, M1<M2, the improved reservoir bracket 10 has better elasticity and can prevent the vibration of the compressor housing 11 from being transmitted to the reservoir housing 12.

[0043] Optional, such as Figure 7 and Fig.11 As shown, the welding position 1021 is on the tangential surface of the reservoir housing 12, and the tangential surface of the reservoir housing 12 is perpendicular to the vertical bisector 121 of the reservoir housing 12, and the welding angle r is 90°. This can make the opening of the reservoir bracket 10 larger and increase the elasticity of the reservoir bracket 10.

[0044] Optional, such as Figure 3 and Figure 4 As shown, the second connection part 102 and the third connection part 103 are respectively provided with at least one notch 1022 or through hole at one end away from the first connection part 101, which can be used for welding position or welding positioning. The tip of the welding gun can be inserted into the first notch 1022 for spot welding. The welding spot can fill or nearly fill the first notch 1022. Optionally, as Figure 3 As shown, two first notches 1022 for welding are respectively provided at one end of the second connection part 102 and the third connection part 103 away from the first connection part 101. If the diameter of the reservoir housing 12 is relatively large, in order to improve the firmness between the reservoir bracket 10 and the reservoir housing 12, two first notches 1022 for welding may be respectively provided at one end of the second connection part 102 and the third connection part 103 away from the first connection part 101. If the diameter of the reservoir housing 12 is not large, only one first notch 1022 for welding may be provided at one end of the second connection part 102 and the third connection part 103 away from the first connection part 101.

[0045] Optional, such as Figure 3 and Figure 4 As shown, the second connection part 102 and the third connection part 103 are symmetrically arranged at two ends of the first connection part 101 with respect to the first connection part 101. This facilitates the manufacture of the liquid reservoir bracket 10 and makes the forces borne by the second connection part 102 and the third connection part 103 equal.

[0046] Optional, such as Figure 6As shown, a motor is arranged in the compressor housing 11, and the distance between the first connection portion 101 and the motor along the axial direction of the compressor housing 11 is greater than 20 mm. This can reduce the vibration amount transmitted by the motor to the reservoir housing 12.

[0047] Optional, such as Figure 3 , Figure 4 , Fig. 9 and Fig.10 As shown, a first transition section 104 is provided between the first connection portion 101 and the second connection portion 102, and a second transition section 105 is provided between the first connection portion 101 and the third connection portion 103. The first transition section 104 and the second transition section 105 can change the shape of the reservoir bracket 10, so that the reservoir bracket 10 can be suitable for compressor housings 11 and reservoir housings 12 of different shapes and sizes. The number of sections of the first transition section 104 and the second transition section 105 can be one or more sections.

[0048] Optional, reference Figure 3 As shown, through holes are respectively provided on the first transition section 104 and the second transition section 105. The through holes can improve the elasticity of the liquid reservoir bracket 10 and further reduce the noise of the rotary compressor.

[0049] Optional, such as Figure 3 As shown, a second notch 1023 is provided on the second connection portion 102 and the third connection portion 103. The second notch 1023 can also improve the elasticity of the liquid reservoir bracket 10 and further reduce the noise of the rotary compressor.

[0050] Optional, such as Figure 3 and Figure 4 As shown, the liquid reservoir bracket 10 is integrally formed from a steel plate. The liquid reservoir bracket 10 formed by bending the entire steel plate has good elasticity and rigidity. The shape of the liquid reservoir bracket 10 is approximately U-shaped. In other embodiments, the liquid reservoir bracket 10 can be obtained by using other materials or other processes.

[0051] Optional, such as Figure 3 and Figure 4 As shown, the thickness of the reservoir bracket 10 is in the range of [2.5 mm, 4 mm]. In this way, the reservoir bracket 10 has good elasticity and rigidity, so that the reservoir bracket 10 can reduce the noise of the rotor compressor and meet the firmness between the compressor housing 11, the reservoir bracket 10 and the reservoir housing 12.

[0052] like Figure 3-Figure 8As shown, based on the same technical concept as the above-mentioned liquid reservoir bracket 10, this embodiment also provides a rotor-type compressor, including a compressor housing 11, a liquid reservoir housing 12 and a liquid reservoir bracket 10 as described in any one of the above items, and the liquid reservoir bracket 10 is welded between the compressor housing 11 and the liquid reservoir housing 12.

[0053] The present embodiment provides a rotary compressor that can significantly reduce the noise of the rotary compressor. The principle is as follows:

[0054] 1. If Figure 2 and Figure 7 As shown, in the prior art, the welding point (i.e., welding position) is close to the compressor housing 1 and far from the tangential surface (i.e., tangential line) of the reservoir housing 3. The vibration of the motor in the radial direction is F, and the component force of F toward the center of the reservoir housing 3 is f1. In the improved scheme, the welding point (i.e., welding position 1201) is on the tangential surface (i.e., tangential line, Figure 5 The portion of the bold line segment in the vertical bisector 121 of the reservoir housing 12 is a partial tangent line of the reservoir housing 12) or near the tangent surface, the vibration of the motor in the radial direction is F, and the component force of F to the center of the reservoir housing 12 is f2. Due to the change of the welding angle and the welding position 1201, f2 is significantly smaller than f1, that is, the improved scheme can significantly reduce the transmission of the vibration of the motor in the radial direction to the reservoir housing 12, thereby reducing the noise caused by the vibration of the reservoir and achieving vibration reduction and noise reduction.

[0055] 2. If Figure 2 and Figure 7 As shown, in the prior art, the length of the cantilever of the reservoir bracket 2 is L1, and the cantilever refers to the length from one end of the first connection part to the welding position; the opening width of the reservoir bracket 2 is M1, and the opening width refers to the distance between the welding position of the second connection part and the welding position of the third connection part on the same plane. The length of the improved cantilever is L2, and the opening width is M2. Because L1<L2, M1<M2, the improved reservoir bracket 10 has better elasticity and can prevent the vibration of the compressor housing 11 from being transmitted to the reservoir housing 12.

[0056] In summary, the liquid reservoir bracket 10 and the rotary compressor provided by the present invention can significantly reduce the noise of the rotary compressor, and the principle is as follows:

[0057] 1. If Figure 2 and Figure 7As shown, in the prior art, the welding point (i.e., welding position) is close to the compressor housing 1 and far from the tangential surface (i.e., tangential line) of the reservoir housing 3. The vibration of the motor in the radial direction is F, and the component force of F toward the center of the reservoir housing 3 is f1. In the improved scheme, the welding point (i.e., welding position 1201) is on the tangential surface (i.e., tangential line, Figure 5 The portion of the bold line segment in the vertical bisector 121 of the reservoir housing 12 is a partial tangent line of the reservoir housing 12) or near the tangent surface, the vibration of the motor in the radial direction is F, and the component force of F to the center of the reservoir housing 12 is f2. Due to the change of the welding angle and the welding position 1201, f2 is significantly smaller than f1, that is, the improved scheme can significantly reduce the transmission of the vibration of the motor in the radial direction to the reservoir housing 12, thereby reducing the noise caused by the vibration of the reservoir and achieving vibration reduction and noise reduction.

[0058] 2. If Figure 2 and Figure 7 As shown, in the prior art, the length of the cantilever of the reservoir bracket 2 is L1, and the cantilever refers to the length from one end of the first connection part to the welding position; the opening width of the reservoir bracket 2 is M1, and the opening width refers to the distance between the welding position of the second connection part and the welding position of the third connection part on the same plane. The length of the improved cantilever is L2, and the opening width is M2. Because L1<L2, M1<M2, the improved reservoir bracket 10 has better elasticity and can prevent the vibration of the compressor housing 11 from being transmitted to the reservoir housing 12.

[0059] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art based on the above disclosure shall fall within the protection scope of the present invention.

Claims

1. A liquid reservoir support, characterized in that: It includes a first connecting part, a second connecting part and a third connecting part; the first connecting part is used to cooperate with the compressor housing and be welded; the second connecting part and the third connecting part are respectively connected to the two ends of the first connecting part; the second connecting part and the third connecting part are used to cooperate with the reservoir housing and be welded; a welding position is set between the second connecting part and the third connecting part and the reservoir housing, the distance between the welding position and the vertical bisector of the reservoir housing is L, the range of L is [0, 12mm], the vertical bisector of the reservoir housing refers to a plane perpendicular to the line between the axis of the compressor housing and the axis of the reservoir housing, and the axis of the reservoir housing is located on the plane; or / and, the welding angle between the second connecting part and the third connecting part and the reservoir housing is r, the welding angle refers to the angle between the welding surface of the second connecting part and the third connecting part facing the side of the reservoir housing and the vertical bisector of the reservoir housing, and the range of r is [72°, 90°].

2. A liquid reservoir support as claimed in claim 1, characterized in that: The welding position is on a tangential surface of the reservoir housing, and the tangential surface of the reservoir housing is perpendicular to a vertical bisector of the reservoir housing.

3. A liquid reservoir support as claimed in claim 1, characterized in that: At least one notch or through hole is respectively provided at one end of the second connection portion and the third connection portion away from the first connection portion.

4. A liquid reservoir support as claimed in claim 1, characterized in that: The second connection portion and the third connection portion are symmetrically arranged at two ends of the first connection portion with respect to the first connection portion.

5. A liquid reservoir support as claimed in claim 1, characterized in that: A motor is arranged in the compressor housing, and a distance between the first connecting portion and the motor along the axial direction of the compressor housing is greater than 20 mm.

6. A liquid reservoir support as claimed in claim 1, characterized in that: A first transition section is provided between the first connection portion and the second connection portion, and a second transition section is provided between the first connection portion and the third connection portion.

7. A liquid reservoir support as claimed in claim 6, characterized in that: The first transition section and the second transition section are respectively provided with through holes.

8. A liquid reservoir support as claimed in claim 1, characterized in that: The liquid storage support is integrally formed from a steel plate.

9. A liquid reservoir support as claimed in claim 1, characterized in that: The thickness of the reservoir support is in the range of [2.5 mm, 4 mm].

10. A rotary compressor, characterized in that: It comprises a compressor housing, a liquid reservoir housing and a liquid reservoir bracket according to any one of claims 1 to 9, wherein the liquid reservoir bracket is welded between the compressor housing and the liquid reservoir housing.

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