A liquid accumulator bracket and a rotary compressor

Abstract

The application provides a liquid accumulator support and a rotary compressor. The liquid accumulator support comprises a first connecting part, a second connecting part and a third connecting part; the first connecting part is used for cooperating with and being welded to a compressor shell; the second connecting part and the third connecting part are connected to two ends of the first connecting part respectively; welding positions are arranged between the second connecting part and the third connecting part and a liquid accumulator shell; the distance between the welding positions and a vertical bisector of the liquid accumulator shell is L, and the range of L is [0, 12mm], or / and the welding angle between the second connecting part, the third connecting part and the liquid accumulator shell is r, the welding angle refers to the included angle between the welding surface of the second connecting part and the third connecting part facing one side of the liquid accumulator shell and the vertical bisector of the liquid accumulator shell, and the range of r is [72°, 90°]. The scheme can obviously reduce the noise of the rotary compressor.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a liquid receiver bracket and a rotary compressor. Background Technology

[0002] like Figures 1-2 As shown, the existing rotary compressor includes a compressor housing 1, a liquid receiver bracket 2, and a liquid receiver housing 3. The liquid receiver bracket 2 is usually a bent steel plate, flared in shape, with a large opening angle at both ends. One side of the liquid receiver bracket 2 is welded to the compressor housing 1, and the other two sides are welded to the liquid receiver housing 3 respectively. The welding position between the liquid receiver bracket 2 and the liquid receiver housing 3 is located on the radial surface of the liquid receiver housing 3, that is, the distance between the welding position and the compressor housing 1 is relatively close. The bottom of the liquid receiver housing 3 is connected to the bottom of the compressor housing 1.

[0003] However, during operation, the motor vibration in the aforementioned rotary compressor is directly transmitted to the liquid receiver housing 3 through the compressor housing 1 and the liquid receiver support 2, which makes it easier to excite the liquid receiver mode, resulting in greater noise from the rotary compressor. Summary of the Invention

[0004] This invention provides a liquid receiver bracket and a rotary compressor to solve the technical problem of high noise in rotary compressors.

[0005] To solve the above-mentioned technical problems, the present invention provides a liquid reservoir bracket, including a first connecting portion, a second connecting portion, and a third connecting portion; the first connecting portion is used to mate with and be welded to a compressor housing; the second connecting portion and the third connecting portion are respectively connected to both ends of the first connecting portion; the second connecting portion and the third connecting portion are used to mate with and be welded to a liquid reservoir housing; 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 bisecting plane of the liquid reservoir housing is L. The range of L is [0, 12 mm]. The vertical bisecting plane of the reservoir housing refers to the plane perpendicular to the line connecting the axis of the compressor housing and the axis of the reservoir housing. The axis of the reservoir housing is located on this 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 reservoir housing and the vertical bisecting plane of the reservoir housing. The range of r is [72°, 90°].

[0006] Optionally, the welding position is on the tangential surface of the reservoir housing, and the tangential surface of the reservoir housing is perpendicular to the vertical bisecting plane of the reservoir housing.

[0007] Optionally, at least one notch or through hole is arranged at one end of the second connecting part and the third connecting part away from the first connecting part.

[0008] Optionally, the second connecting part and the third connecting part are symmetrically arranged at two ends of the first connecting part.

[0009] Optionally, a motor is arranged in the compressor shell, and a distance between the first connecting part and the motor in an axial direction of the compressor shell is greater than 20 mm.

[0010] Optionally, a first transition section is arranged between the first connecting part and the second connecting part, and a second transition section is arranged between the first connecting part and the third connecting part.

[0011] Optionally, a through hole is arranged on the first transition section and the second transition section.

[0012] Optionally, the liquid accumulator support is integrally formed by a steel plate.

[0013] Optionally, a thickness of the liquid accumulator support ranges from 2.5 mm to 4 mm.

[0014] The application further provides a rotary compressor, which comprises a compressor shell, a liquid accumulator shell and the liquid accumulator support.

[0015] The liquid accumulator support and the rotary compressor provided by the application can significantly reduce the noise of the rotary compressor, and the principle is as follows:

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

[0017] 2、Prior art, the length of the cantilever of the liquid accumulator support is L1, the cantilever refers to the length from one end of the first connecting part to the welding position; the opening width of the liquid accumulator support is M1, the opening width refers to the distance between the welding position of the second connecting part and the welding position of the third connecting part in the same plane. The length of the improved cantilever is L2, and the opening width is M2. Because L1 < L2, M1 < M2, the improved liquid accumulator support has better elasticity, and can hinder the transmission of the vibration of the compressor shell to the liquid accumulator shell. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 is a simplified top view of Figure 1 .

[0020] Figure 3 is a structural schematic diagram of a liquid accumulator support provided by an embodiment of the application.

[0021] Figure 4 is a top view of Figure 3 .

[0022] Figure 5 is a structural schematic diagram of a rotor type compressor provided by an embodiment of the application.

[0023] Figure 6 is a front view of Figure 5 .

[0024] Figure 7 is a top view of Figure 5 .

[0025] Figure 8 is a structural schematic diagram of a rotor type compressor provided by an embodiment of the application.

[0026] Figure 9 is a structural schematic diagram of a liquid accumulator support provided by an embodiment of the application.

[0027] Figure 10 is a top view of Figure 9 .

[0028] Figure 11 is a structural schematic diagram of a liquid accumulator support in use in Figure 9 .

[0029] Figure 12 is a top view of a rotor type compressor provided by an embodiment of the application.

[0030] Figure 13 is an enlarged view of Figure 12 .

[0031] [Reference numerals are explained as follows]

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

[0033] Accumulator bracket-10, compressor housing-11, accumulator 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 bisecting surface-121;

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

[0037] In order to make the objects, advantages and features of the present application clearer, a further detailed description of the present application is given below in conjunction with the accompanying drawings. It should be noted that all the drawings are in a very simplified form and are not drawn to precise scale, and are only used to facilitate, clarify and assist in the purpose of explaining the embodiments of the present application.

[0038] In the description of the present application, the terms "first", "second", and the like qualifiers are added for the convenience of description and reference, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features qualified with "first", "second", and the like can explicitly or implicitly include one or more of the features.

[0039] As Figures 3-8As shown, this embodiment provides a 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 mate with and be welded to a compressor housing 11. 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 mate with and be welded to a reservoir housing 12. A welding position 1021 is provided between the second connecting portion 102 and the third connecting portion 103 and the reservoir housing 12, and the welding position 1021 is perpendicular to the vertical bisecting plane 12 of the reservoir housing 12. The distance between 1 and 2 is L, where L ranges from [0, 12 mm]. The vertical bisecting plane 121 of the reservoir housing 12 refers to a plane perpendicular to the line connecting the axis of the compressor housing 11 and the axis of the reservoir housing 12, where the axis of the reservoir housing 12 lies. Alternatively, the welding angle between the second connecting part 102 and the third connecting part 103 and the reservoir housing 12 is r, where r is the angle between the welding surfaces of the second connecting part 102 and the third connecting part 103 facing the reservoir housing 12 and the vertical bisecting plane 121 of the reservoir housing 12, and r ranges from [72°, 90°]. Experimental verification shows that by controlling the welding position or welding angle, the radial vibration of the motor can be blocked from being transmitted to the reservoir, thereby reducing the noise caused by vibration in the reservoir and achieving vibration reduction and noise reduction.

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

[0041] 1. For example Figure 2 As shown, in the prior art, the welding point (i.e., the welding position) is close to the compressor housing 1 and far from the tangential plane (i.e., the tangential line) of the liquid reservoir housing 3. The radial vibration of the motor is F, and the component of F towards the center of the liquid reservoir housing 3 is f1. In the improved scheme, as... Figure 7 As shown, the welding point (i.e., welding position 1201) is on the tangential surface (i.e., tangential line) of the reservoir housing 12. Figure 5 The thickened line segment in the vertical bisecting plane 121 of the reservoir housing 12 (which represents part of the tangential line of the reservoir housing 12) is located on or near the tangential plane. The radial vibration of the motor is F, and the component of F towards the center of the reservoir housing 12 is f2. Due to the change in welding angle and welding position 1201, f2 is significantly smaller than f1. That is, the improved scheme can significantly reduce the transmission of radial vibration of the motor to the reservoir housing 12, thereby reducing the noise caused by vibration of the reservoir and achieving vibration reduction and noise reduction.

[0042] 2. For example Figure 2As shown in the prior art, the length of the cantilever of the liquid accumulator support 2 is L1, which refers to the length from one end of the first connecting part to the welding position; the opening width of the liquid accumulator support 2 is M1, which refers to the distance between the welding position of the second connecting part and the welding position of the third connecting part in the same plane. After improvement, as shown in Figure 7 the length of the cantilever is L2 and the opening width is M2. Since L1 < L2 and M1 < M2, the improved liquid accumulator support 10 has better elasticity and can hinder the vibration of the compressor shell 11 from being transmitted to the liquid accumulator shell 12.

[0043] Optionally, as shown in Figure 7 and Figure 11 the welding position 1021 is on the tangential surface of the liquid accumulator shell 12, which is perpendicular to the vertical bisector surface 121 of the liquid accumulator shell 12, and the welding angle r is 90° at this time. In this way, the opening of the liquid accumulator support 10 can be larger, and the elasticity of the liquid accumulator support 10 can be increased.

[0044] Optionally, as shown in Figure 3 and Figure 4 the second connecting part 102 and the third connecting part 103 are respectively provided with at least one notch 1022 or through hole at one end away from the first connecting part 101, which can be used for welding position or welding positioning. The head of the welding gun can be inserted into the first notch 1022 for spot welding. The welding point can fill or nearly fill the first notch 1022. Optionally, as shown in Figure 3 the second connecting part 102 and the third connecting part 103 are respectively provided with two first notches 1022 for welding at one end away from the first connecting part 101. If the diameter of the liquid accumulator shell 12 is large, in order to improve the firmness between the liquid accumulator support 10 and the liquid accumulator shell 12, the second connecting part 102 and the third connecting part 103 can be respectively provided with two first notches 1022 for welding at one end away from the first connecting part 101. If the diameter of the liquid accumulator shell 12 is not large, the second connecting part 102 and the third connecting part 103 can be provided with only one first notch 1022 for welding at one end away from the first connecting part 101.

[0045] Optionally, as shown in Figure 3 and Figure 4 the second connecting part 102 and the third connecting part 103 are symmetrically arranged at both ends of the first connecting part 101 with respect to the first connecting part 101. In this way, the liquid accumulator support 10 is convenient to manufacture, and the forces borne by the second connecting part 102 and the third connecting part 103 are equal in size.

[0046] Optionally, as shown in Figure 6As shown, a motor is installed inside the compressor housing 11, and the distance between the first connecting part 101 and the motor along the axial direction of the compressor housing 11 is greater than 20mm. This can reduce the amount of vibration transmitted by the motor to the liquid receiver housing 12.

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

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

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

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

[0051] Optional, such as Figure 3 and Figure 4 As shown, the thickness of the reservoir bracket 10 ranges from [2.5mm to 4mm]. This allows the reservoir bracket 10 to have good elasticity and rigidity, enabling it to reduce the noise of the rotary compressor while ensuring the robustness between the compressor housing 11, the reservoir bracket 10, and the reservoir housing 12.

[0052] like Figures 3-8As shown, based on the same technical concept as the above-mentioned liquid accumulator support 10, the embodiment also provides a rotary compressor, which comprises a compressor shell 11, a liquid accumulator shell 12 and the above-mentioned liquid accumulator support 10, and the liquid accumulator support 10 is welded between the compressor shell 11 and the liquid accumulator shell 12.

[0053] The rotary compressor provided by the embodiment can obviously reduce the noise of the rotary compressor, and the principle is as follows:

[0054] 1. As shown in Figure 2 and Figure 7 In the prior art, the welding point (i.e. the welding position) is close to the compressor shell 1 and far away from the tangential surface (i.e. the tangential line) of the liquid accumulator shell 3, the vibration of the motor in the radial direction is F, and the component force of F towards the center of the liquid accumulator shell 3 is f1. In the improved scheme, the welding point (i.e. the welding position 1201) is on or near the tangential surface (i.e. the tangential line, Figure 5 the thick line segment in the vertical bisector surface 121 of the liquid accumulator shell 12 is part of the tangential line of the liquid accumulator shell 12), the vibration of the motor in the radial direction is F, and the component force of F towards the center of the liquid accumulator shell 12 is f2. Due to the change of the welding angle and the welding position 1201, f2 is obviously smaller than f1, that is, the improved scheme can obviously reduce the transmission of the vibration of the motor in the radial direction to the liquid accumulator shell 12, thereby reducing the noise caused by the vibration of the liquid accumulator, and achieving vibration reduction and noise reduction.

[0055] 2. As shown in Figure 2 and Figure 7 In the prior art, the length of the cantilever of the liquid accumulator support 2 is L1, the cantilever refers to the length from one end of the first connecting part to the welding position; the opening width of the liquid accumulator support 2 is M1, the opening width refers to the distance between the welding position of the second connecting part and the welding position of the third connecting part in the same plane. The length of the improved cantilever is L2, and the opening width is M2. Because L1

[0056] In summary, the liquid accumulator support 10 and the rotary compressor provided by the present application can obviously reduce the noise of the rotary compressor, and the principle is as follows:

[0057] 1. As shown in Figure 2 and Figure 7As shown, in the prior art, the welding point (i.e., the welding position) is close to the compressor housing 1 and far from the tangential plane (i.e., the tangential line) of the liquid reservoir housing 3. The radial vibration of the motor is F, and the component of F towards the center of the liquid reservoir housing 3 is f1. In the improved scheme, the welding point (i.e., welding position 1201) is on the tangential plane (i.e., the tangential line) of the liquid reservoir housing 12. Figure 5 The thickened line segment in the vertical bisecting plane 121 of the reservoir housing 12 (which represents part of the tangential line of the reservoir housing 12) is located on or near the tangential plane. The radial vibration of the motor is F, and the component of F towards the center of the reservoir housing 12 is f2. Due to the change in welding angle and welding position 1201, f2 is significantly smaller than f1. That is, the improved scheme can significantly reduce the transmission of radial vibration of the motor to the reservoir housing 12, thereby reducing the noise caused by vibration of the reservoir and achieving vibration reduction and noise reduction.

[0058] 2. For example Figure 2 and Figure 7 As shown, in the prior art, the length of the cantilever of the reservoir bracket 2 is L1, where the cantilever refers to the length from one end of the first connecting part to the welding position; the opening width of the reservoir bracket 2 is M1, where the opening width refers to the distance between the welding positions of the second connecting part and the welding positions of the third connecting part on the same plane. The improved cantilever has a length of L2 and an opening width of M2. Because L1 < L2 and 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 preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those 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, The device includes a first connecting part, a second connecting part, and a third connecting part; the first connecting part is used to mate with and weld to the compressor housing; the second connecting part and the third connecting part are respectively connected to both ends of the first connecting part; the second connecting part and the third connecting part are used to mate with and weld to the reservoir housing; a welding position is provided between the second connecting part and the third connecting part and the reservoir housing, the distance between the welding position and the vertical bisecting plane of the reservoir housing is L, the range of L is [0, 12 mm], the vertical bisecting plane of the reservoir housing refers to a plane perpendicular to the line connecting the axis of the compressor housing and the axis of the reservoir housing, the axis of the reservoir housing is located on this 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 reservoir housing and the vertical bisecting plane of the reservoir housing, the range of r is [72°, 90°].

2. The reservoir support as described in claim 1, characterized in that, The welding position is on the tangential surface of the reservoir housing, and the tangential surface of the reservoir housing is perpendicular to the vertical bisecting plane of the reservoir housing.

3. A reservoir support as described in claim 1, characterized in that, The second connecting portion and the third connecting portion are respectively provided with at least one notch or through hole at the end away from the first connecting portion.

4. A reservoir support as described in claim 1, characterized in that, The second connecting portion and the third connecting portion are symmetrically arranged at both ends of the first connecting portion with respect to the first connecting portion.

5. A reservoir support as described in claim 1, characterized in that, A motor is installed inside the compressor housing, and the distance between the first connecting part and the motor along the axial direction of the compressor housing is greater than 20mm.

6. A reservoir support as described in claim 1, characterized in that, A first transition section is provided between the first connecting part and the second connecting part, and a second transition section is provided between the first connecting part and the third connecting part.

7. A reservoir support as described in claim 6, characterized in that, Through holes are provided on the first transition section and the second transition section respectively.

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

9. A reservoir support as described in claim 1, characterized in that, The thickness of the reservoir support ranges from 2.5 mm to 4 mm.

10. A rotary compressor, characterized in that, The device includes a compressor housing, a reservoir housing, and a reservoir bracket as described in any one of claims 1-9, wherein the reservoir bracket is welded between the compressor housing and the reservoir housing.

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