Liquid accumulator support and compressor

Abstract

The invention relates to the technical field of compressors, and provides a liquid accumulator support and a compressor, and the liquid accumulator support comprises a first welding part, a second welding part and a connecting part. Wherein a first groove is formed in the first welding part, and a shell of the compressor can be partially inserted into the first groove, attached to the inner wall of the first groove and fixedly welded to the inner wall of the first groove; a second groove is formed in the second welding part, and the liquid storage device can be partially inserted into the second groove, attached to the inner wall of the second groove and fixedly welded to the inner wall of the second groove; the first welding part and the second welding part are arranged on the two opposite sides of the connecting part and fixedly connected through the connecting part. Thus, the connection rigidity between the shell of the compressor and the liquid storage device is improved, according to the formula # imgabs0 #, f represents frequency, k represents rigidity, and m represents mass, it can be known that when the mass is fixed, the vibration frequency is in direct proportion to the rigidity, and after the connection rigidity is improved, the inherent frequency of the liquid storage device is effectively improved, so that the resonance problem of a low-frequency band is avoided, and the service life of the liquid storage device is prolonged. And the condition of noise generation is improved.

Description

Technical Field

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

[0002] The current compressor accumulator bracket adopts a soft connection, that is, a combination of an elastic clamp and a rubber pad: the connection rigidity between the body and the accumulator is low, the natural frequency of the upper structure of the accumulator is low, and it is easy to be excited to resonate and generate noise. This resonance is also easy to cause resonance in the system pipeline, which makes the noise superposition increase.

[0003] In the prior art, some noise radiation levels are reduced by adding counterweights and damping rubber, but the noise reduction effect is not obvious during use.

[0004] Therefore, there is an urgent need for a liquid storage support and a compressor to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid reservoir bracket, which can enhance the connection rigidity between the liquid reservoir and the shell, improve the fixing frequency of the liquid reservoir, and thus reduce the generation of noise.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A liquid reservoir support, used to connect a compressor to a liquid reservoir and a housing spaced apart in a first direction, comprising:

[0008] A first welding portion, wherein the first welding portion is formed with a first groove, and the housing can be partially inserted into the first groove and attached to and fixed to the inner wall of the first groove by welding;

[0009] A second welding portion, wherein the second welding portion is formed with a second groove, and the liquid reservoir can be partially inserted into the second groove and adhered to and fixed to the inner wall of the second groove by welding;

[0010] The connecting portion, the first welding portion and the second welding portion are placed on opposite sides of the connecting portion and are fixedly connected through the connecting portion.

[0011] As a preferred technical solution of the above-mentioned liquid storage bracket, at least one closed cavity is arranged inside the above-mentioned connecting part, which is formed by a closed connection through the above-mentioned first welding part and / or the above-mentioned second welding part.

[0012] As a preferred technical solution of the above-mentioned accumulator bracket, in the axial projection of the above-mentioned compressor, the minimum dimension L of the above-mentioned connecting portion in the above-mentioned first direction satisfies, 0.8L1≤L≤L1, L1 is the minimum distance between the above-mentioned shell and the above-mentioned accumulator in the above-mentioned first direction;

[0013] The first direction is perpendicular to the axial direction of the compressor.

[0014] As a preferred technical solution of the above-mentioned accumulator bracket, in the axial projection of the above-mentioned compressor, the maximum dimension D of the above-mentioned connecting portion in the second direction satisfies, 2L≤D≤4L;

[0015] The second direction, the first direction and the axial direction of the compressor are perpendicular to each other.

[0016] As a preferred technical solution for the above-mentioned liquid storage bracket, in the axial direction of the above-mentioned compressor, the first end face of the above-mentioned first welding part, the first end face of the above-mentioned second welding part and the first end face of the above-mentioned connecting part are all coplanar with the first plane and perpendicular to the axial direction of the above-mentioned compressor; the second end face of the above-mentioned first welding part, the second end face of the above-mentioned second welding part and the second end face of the above-mentioned connecting part are all coplanar with the second plane, and the above-mentioned first plane is parallel to the above-mentioned second plane.

[0017] As a preferred technical solution of the above-mentioned liquid storage bracket, in the axial direction of the above-mentioned compressor, the length of the above-mentioned connecting portion is H, satisfying 2L≤H≤4L.

[0018] As a preferred technical solution of the above-mentioned liquid reservoir bracket, in the axial projection of the above-mentioned compressor, at least half of the projection of the above-mentioned liquid reservoir is located in the above-mentioned second groove.

[0019] As a preferred technical solution of the above-mentioned liquid reservoir bracket, in the axial projection of the above-mentioned compressor, the size of the above-mentioned connecting portion in the second direction gradually increases along the above-mentioned first direction, the size of the end of the above-mentioned connecting portion connected to the above-mentioned first welding portion is Dmin, and the size of the end of the above-mentioned connecting portion connected to the above-mentioned second welding portion is Dmax, wherein Dmin is the minimum value of D, and Dmax is the maximum value of D;

[0020] The second direction, the first direction and the axial direction of the compressor are perpendicular to each other.

[0021] As a preferred technical solution for the above-mentioned liquid reservoir bracket, in the axial projection of the above-mentioned compressor, with the line connecting the axis of the above-mentioned liquid reservoir and the axis of the above-mentioned shell as the baseline, the above-mentioned liquid reservoir is rotated around the axis of the above-mentioned liquid reservoir by α°, satisfying that 40≤α≤60, and the above-mentioned second welding part is welded to the above-mentioned liquid reservoir in this area.

[0022] A compressor is also provided, comprising the above-mentioned shell, the above-mentioned liquid reservoir and the above-mentioned liquid reservoir bracket, wherein the above-mentioned shell and the above-mentioned liquid reservoir are fixed by the above-mentioned liquid reservoir bracket.

[0023] Beneficial effects of the present invention:

[0024] The present invention provides a liquid reservoir bracket and a compressor, wherein the shell of the compressor and the liquid reservoir are spaced apart in a first direction. The liquid reservoir bracket comprises a first welding portion, a second welding portion and a connecting portion. The first welding portion is formed with a first groove, and the shell of the compressor can be partially inserted into the first groove, abutting against the inner wall of the first groove and being fixed by welding; the second welding portion is formed with a second groove, and the liquid reservoir can be partially inserted into the second groove, abutting against the inner wall of the second groove and being fixed by welding; the first welding portion and the second welding portion are placed on opposite sides of the connecting portion and are fixedly connected by the connecting portion.

[0025] Exemplarily, the shell of the compressor is cylindrical, the first groove of the first welding part is in an arc shape that matches the first groove, the shell is inserted into the first groove, part of the outer wall of the shell can fit with the inner wall of the first groove, and are fixed by welding; the liquid reservoir is cylindrical, the second groove of the second welding part is in an arc shape that matches the first groove, the liquid reservoir is inserted into the second groove, part of the outer wall of the liquid reservoir can fit with the inner wall of the second groove, and are fixed by welding. The first welding part and the second welding part are fixedly connected by a connecting part. In this way, the connection rigidity between the shell of the compressor and the liquid reservoir is improved. According to the formula, Among them, f represents frequency, k represents stiffness, and m represents mass. It can be seen that when the mass is constant, the vibration frequency is proportional to the stiffness. When the connection rigidity is increased, the natural frequency of the reservoir is effectively improved to avoid the resonance problem in the low-frequency band, thereby improving the noise generation situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 1 is a top view of the liquid storage support provided by the embodiment of the present invention Figure 1 ;

[0028] Figure 2 is a side view of a liquid reservoir support provided by an embodiment of the present invention;

[0029] Figure 3 1 is a top view of the liquid storage support provided by the embodiment of the present invention Figure 2 ;

[0030] Figure 4 This is a comparison chart of the compressor connection method and the one-third octave noise curve.

[0031] In the figure:

[0032] X, axial direction of the compressor; Y, first direction; Z, second direction;

[0033] 100, first welding portion; 110, first groove;

[0034] 200, second welding portion; 210, second groove;

[0035] 300. Connecting part. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] like Figures 1 to 3As shown, the present invention provides a liquid reservoir bracket, which is used to connect the liquid reservoir and the shell of the compressor spaced apart in the first direction Y, and the liquid reservoir bracket includes a first welding part 100, a second welding part 200 and a connecting part 300. Among them, the first welding part 100 is formed with a first groove 110, and the shell can be partially inserted into the first groove 110, and is attached to and welded to the inner wall of the first groove 110; the second welding part 200 is formed with a second groove 210, and the liquid reservoir can be partially inserted into the second groove 210, and is attached to and welded to the inner wall of the second groove 210; the first welding part 100 and the second welding part 200 are respectively placed on opposite sides of the connecting part 300, and are fixedly connected through the connecting part 300.

[0041] Exemplarily, the shell of the compressor is cylindrical, the first groove 110 of the first welding part 100 is in an arc shape that matches the shell, the shell is inserted into the first groove 110, part of the outer wall of the shell can fit with the inner wall of the first groove 110, and are fixed by welding; the liquid reservoir is cylindrical, the second groove 210 of the second welding part 200 is in an arc shape that matches the shell, the liquid reservoir is inserted into the second groove 210, part of the outer wall of the liquid reservoir can fit with the inner wall of the second groove 210, and are fixed by welding. The first welding part 100 and the second welding part 200 are fixedly connected by the connecting part 300. In this way, the connection rigidity between the shell of the compressor and the liquid reservoir is improved. According to the formula, Among them, f represents frequency, k represents stiffness, and m represents mass. It can be seen that when the mass is constant, the vibration frequency is proportional to the stiffness. When the connection rigidity is increased, the natural frequency of the reservoir is effectively improved to avoid the resonance problem in the low-frequency band, thereby improving the noise generation situation.

[0042] Optionally, the first welding portion 100, the second welding portion 200 and the connecting portion 300 are integrally formed. In this way, the reservoir bracket can be integrally formed by casting, 3D printing and other processes, so that the first welding portion 100, the second welding portion 200 and the connecting portion 300 are always fixedly connected, and the stability of the three can be maintained.

[0043] Optionally, at least one closed cavity is provided inside the connecting portion 300, which is formed by a closed connection between the first welding portion 100 and / or the second welding portion 200.

[0044] Optionally, in the projection of the axial direction X of the compressor, the minimum dimension L of the connecting portion 300 in the first direction Y satisfies 0.8L1≤L≤L1, where L1 is the minimum spacing between the housing and the accumulator in the first direction Y; the first direction Y is perpendicular to the axial direction X of the compressor. In this way, the arrangement of the accumulator bracket will not be affected in a large range, and the placement spacing between the accumulator and the housing can still maintain a relatively compact assembly relationship.

[0045] Optionally, in the projection of the axial direction X of the compressor, the maximum dimension D of the connecting portion 300 in the second direction Z satisfies 2L≤D≤4L; the second direction Z, the first direction Y and the axial direction X of the compressor are perpendicular to each other. In this way, the connecting portion 300 has a larger contact area with the first welding portion 100 and the second welding portion 200, and the relative stability of the first welding portion 100 and the second welding portion 200 is maintained.

[0046] Optionally, in the axial direction X of the compressor, the first end face of the first welding part 100, the first end face of the second welding part 200 and the first end face of the connecting part 300 are all coplanar with the first plane and perpendicular to the axial direction X of the compressor; the second end face of the first welding part 100, the second end face of the second welding part 200 and the second end face of the connecting part 300 are all coplanar with the second plane, and the first plane is parallel to the second plane.

[0047] Exemplarily, in this embodiment, in the projection in the first direction Y, the outer contour of the connecting part 300 in the second direction Z, the outer contour of the first welding part 100 in the second direction Z, and the outer contour of the second welding part 200 in the second direction Z all coincide, thus facilitating the production and processing of the liquid storage bracket.

[0048] In other embodiments, in the projection along the first direction Y, the projection of the connecting portion 300 is located within the projection of the first welding portion 100 and / or the second welding portion 200 .

[0049] Optionally, in the axial direction X of the compressor, the length of the connecting portion 300 is H, satisfying 2L≤H≤4L.

[0050] Optionally, in the axial X-projection of the compressor, at least half of the projection of the accumulator is located in the second groove 210 .

[0051] Exemplarily, the outer contour of the liquid reservoir is cylindrical, and the second welding portion 200 forms a second groove 210, which is arc-shaped and is a semicircular arc or a major arc. When the liquid reservoir is inserted into the second groove 210, part of the outer peripheral wall of the liquid reservoir fits with the inner peripheral wall of the second groove 210, and in the axial X projection of the compressor, the angle β of the arc formed by the fitting area is ≮180°.

[0052] Optionally, in the axial direction X projection of the compressor, the size of the connecting portion 300 in the second direction Z gradually increases along the first direction Y, the size of one end of the connecting portion 300 connected to the first welding portion 100 is Dmin, and the size of one end of the connecting portion 300 connected to the second welding portion 200 is Dmax, wherein Dmin is the minimum value of D, and Dmax is the maximum value of D; the second direction Z, the first direction Y and the axial direction X of the compressor are perpendicular to each other.

[0053] Since the second welding part 200 extends around the axis of the liquid reservoir to form a cantilever beam structure, in order to reduce the shaking of the second welding part 200 relative to the first welding part 100, increasing the connection dimension between the connecting part 300 and the second welding part 200 along the circumference of the liquid reservoir helps to straighten the second welding part 200 and maintain the connection reliability between the second welding part 200 and the connecting part 300, as well as the relative stability of the first welding part 100 and the second welding part 200.

[0054] Correspondingly, the contact area between the second welding portion 200 of the reservoir bracket and the reservoir is larger than the contact area between the first welding portion 100 and the shell. Adaptively, the contact area between the connecting portion 300 and the first welding portion 100 is smaller than the contact area between the connecting portion 300 and the second welding portion 200, thereby enhancing the connection reliability between the connecting portion 300 and the second welding portion 200.

[0055] Optionally, in the axial X projection of the compressor, with the line connecting the axis of the reservoir and the axis of the shell as the baseline, the reservoir is rotated around the axis by α°, satisfying 40≤α≤60, and the second welding portion 200 is welded to the reservoir in this area.

[0056] Exemplarily, the liquid reservoir is welded to the inner wall of the second groove 210, and the projection of the welding area on the axial direction X of the compressor is in the shape of an arc, and the connection between the axis of the liquid reservoir and the axis of the shell is used as the baseline, and the baseline is rotated clockwise by α1°, α1 satisfies 40≤α1≤60, and rotated counterclockwise by α2°, α2 satisfies 40≤α≤60; the welding area is an arc with a center of α1°+α2°. Generally, α1=α2.

[0057] like Figure 4 As shown, between 250HZ and 700HZ, that is, the black circled part, it can be seen that, after experiments, it has been proved that the rigid welded bracket extension method produces the smallest noise compared with other solutions, which shows the effectiveness of this solution.

[0058] Simulation comparison of the first two natural frequencies of the reservoir

[0059]

[0060] It should be noted that the original solution refers to the connection between the compressor housing and the liquid reservoir by a combination of elastic clamps and rubber pads; the rigid welded bracket refers to a liquid reservoir bracket with a second groove 210 in a minor arc; the rigid welded bracket extension refers to a liquid reservoir bracket with a second groove 210 in a major arc.

[0061] A compressor is also provided, comprising a shell, a liquid reservoir and the above-mentioned liquid reservoir bracket, wherein the shell and the liquid reservoir are fixed by the liquid reservoir bracket.

[0062] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A liquid reservoir support, used to connect a liquid reservoir and a housing of a compressor spaced apart in a first direction (Y), characterized in that: The liquid reservoir support comprises: A first welding portion (100), wherein the first welding portion (100) is formed with a first groove (110), and the housing can be partially inserted into the first groove (110), and is attached to and fixed to the inner wall of the first groove (110) by welding; A second welding portion (200), wherein the second welding portion (200) is formed with a second groove (210), and the liquid reservoir can be partially inserted into the second groove (210), and is attached to and fixed to the inner wall of the second groove (210) by welding; A connecting portion (300), wherein the first welding portion (100) and the second welding portion (200) are disposed on opposite sides of the connecting portion (300) and are fixedly connected via the connecting portion (300).

2. The liquid reservoir support according to claim 1, characterized in that: At least one sealed cavity is provided inside the connection portion (300), and is formed by sealed connection of the first welding portion (100) and / or the second welding portion (200).

3. The liquid reservoir support according to claim 1, characterized in that: In the projection of the axial direction (X) of the compressor, the minimum dimension L of the connecting portion (300) in the first direction (Y) satisfies: 0.8L1≤L≤L1, L1 is the minimum distance between the housing and the liquid reservoir in the first direction (Y); The first direction (Y) is perpendicular to the axial direction (X) of the compressor.

4. The liquid reservoir support according to claim 3, characterized in that: In the projection of the axial direction (X) of the compressor, the maximum dimension D of the connecting portion (300) in the second direction (Z) satisfies 2L≤D≤4L; The second direction (Z), the first direction (Y) and the axial direction (X) of the compressor are perpendicular to each other.

5. The liquid reservoir support according to claim 3, characterized in that: In the axial direction (X) of the compressor, the first end surface of the first welding portion (100), the first end surface of the second welding portion (200) and the first end surface of the connecting portion (300) are all coplanar with a first plane and perpendicular to the axial direction (X) of the compressor; the second end surface of the first welding portion (100), the second end surface of the second welding portion (200) and the second end surface of the connecting portion (300) are all coplanar with a second plane, and the first plane is parallel to the second plane.

6. The liquid reservoir support according to claim 5, characterized in that: In the axial direction (X) of the compressor, the length of the connecting portion (300) is H, satisfying 2L≤H≤4L.

7. The liquid reservoir support according to claim 1, characterized in that: In the axial (X) projection of the compressor, at least half of the projection of the liquid reservoir is located in the second groove (210).

8. The liquid reservoir support according to claim 7, characterized in that: In the axial (X) projection of the compressor, the size of the connecting portion (300) in the second direction (Z) gradually increases along the first direction (Y), the size of one end of the connecting portion (300) connected to the first welding portion (100) is Dmin, and the size of one end of the connecting portion (300) connected to the second welding portion (200) is Dmax, wherein Dmin is the minimum value of D, and Dmax is the maximum value of D; The second direction (Z), the first direction (Y) and the axial direction (X) of the compressor are perpendicular to each other.

9. The liquid reservoir support according to claim 7, characterized in that: In the axial (X) projection of the compressor, the line connecting the axis of the reservoir and the axis of the shell is used as the baseline, and the axis of the reservoir is rotated by α° around the axis of the reservoir, satisfying 40≤α≤60, and the second welding part (200) is welded to the reservoir in this area.

10. A compressor, characterized in that It comprises the shell, the liquid reservoir and the liquid reservoir bracket according to any one of claims 1 to 9, wherein the shell and the liquid reservoir are fixed by the liquid reservoir bracket.

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