A pump body structure and a compressor having the same

Abstract

The present invention provides a pump body structure and a compressor having the same, which relates to the technical field of compressors, and solves the technical problem in the prior art that impurities entering the cylinder will cause indentations on the surfaces of the cylinder and rollers, and even cause the cylinder and rollers to get stuck. The pump body structure includes an annular groove and a step groove matched with the annular groove, the annular groove is provided on the end face of the flange that matches the cylinder, and the step groove is provided on the inner wall of the inner ring of the cylinder. During the operation of the pump body structure, impurities entering during the assembly of the pump body structure and impurities entering the pump body structure with gas during the operation of the compressor will enter the annular groove through the step groove along with the operation of the pump body structure, and the impurities will be stored in the internal space of the annular groove, thereby avoiding the situation that impurities entering the cylinder will cause indentations on the surfaces of the cylinder and rollers, and even cause the cylinder and rollers to get stuck, which is beneficial to the operation of the pump body structure.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a pump body structure and a compressor having the same. Background Art

[0002] The compressor has become an indispensable and important component in the air-conditioning field, and its production and manufacturing technology is becoming more and more mature. However, impurities that enter the compressor pump body structure during the assembly process and impurities that enter the pump body structure with the gas during the operation of the compressor will accumulate between the inner wall of the cylinder and the outer wall of the roller. Since the minimum gap between the inner wall of the cylinder and the outer wall of the roller is 0.01-0.015mm, the impurities squeezed in between will cause indentations on the surface of the cylinder and the roller, and may even cause the cylinder and the roller to get stuck, resulting in a malfunction. Summary of the invention

[0003] The purpose of the present invention is to provide a pump body structure and a compressor having the same, so as to solve the technical problem in the prior art that impurities entering the cylinder may cause indentations on the surface of the cylinder and the roller, and may even cause the cylinder and the roller to get stuck.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a pump body structure, including a flange, a cylinder, and an annular groove and a step groove matched with the annular groove. The annular groove is opened on the end surface of the flange matching with the cylinder, and the step groove is opened on the inner wall of the inner ring of the cylinder.

[0006] Optionally, the inner diameter of the annular groove is not less than the inner diameter of the cylinder.

[0007] Optionally, the cross-sections of the step groove and the annular groove are both rectangular.

[0008] Optionally, the annular groove is opened on the lower flange.

[0009] Optionally, the inner diameter of the annular groove is 0.2 to 0.5 mm larger than the inner diameter of the cylinder.

[0010] Optionally, the outer ring diameter of the annular groove is 1 to 2 mm larger than the inner ring diameter of the cylinder.

[0011] Optionally, the depth of the annular groove is 2 to 4 mm.

[0012] Optionally, the diameter of the step groove is 1 to 2 mm larger than the diameter of the cylinder inner ring.

[0013] Optionally, the height of the step groove is 1 to 1.5 mm.

[0014] A compressor comprises the pump body structure described above.

[0015] The present invention provides a pump body structure, comprising an annular groove and a step groove matched with the annular groove, wherein the annular groove is arranged on the end face of the flange matched with the cylinder, and the step groove is arranged on the inner wall of the inner ring of the cylinder. During the operation of the pump body structure, impurities entering during the assembly process of the pump body structure and impurities entering the pump body structure with gas during the operation of the compressor will enter the annular groove through the step groove as the pump body structure operates, and the impurities will be stored in the internal space of the annular groove, thereby preventing the impurities entering the cylinder from causing indentations on the surfaces of the cylinder and rollers, and even causing the cylinder and the rollers to get stuck, which is beneficial to the operation of the pump body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a partial enlarged view of the annular groove and the step groove of the present invention;

[0018] Figure 2 A cross-sectional view of a pump structure to which the present invention is applied;

[0019] Figure 3 It is a cross-sectional view of a flange with an annular groove;

[0020] Figure 4 It is a cross-sectional view of a cylinder with a step groove;

[0021] Figure 5 This is a cross-sectional view of the existing pump body structure.

[0022] In the figure, 1, annular groove; 2, flange; 3, cylinder; 4, step groove; 5, roller. DETAILED DESCRIPTION

[0023] 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.

[0024] The present invention provides a pump body structure, such as Figure 1 , Figure 2 , Figure 3and Figure 4 As shown, it includes a flange, a cylinder, and also includes an annular groove 1 and a step groove 4 matched with the annular groove 1. The annular groove 1 is opened on the end surface of the flange 2 that matches the cylinder 3, and the step groove 4 is opened on the inner wall of the inner ring of the cylinder 3.

[0025] like Figure 5 As shown, during the operation of the pump structure, the crankshaft drives the roller 5 to rotate eccentrically along the inner side wall of the cylinder 3. Through the cooperation between the roller 5 and other components of the cylinder 3, two chambers with constantly changing volumes are formed in the cylinder 3, thereby realizing air suction and air compression; during the operation of the pump structure, impurities entering the pump structure during assembly and impurities entering the pump structure with gas during operation of the compressor will enter between the inner wall of the cylinder 3 and the outer wall of the roller 5 as the pump structure operates, and the minimum gap between the inner wall of the cylinder 3 and the outer wall of the roller 5 is only 0.01 to 1.5 mm. 0.015mm, which is easy to cause indentations on the surfaces of the cylinder 3 and the roller 5, and even cause the cylinder 3 and the roller 5 to get stuck; the present invention provides a pump body structure, including an annular groove 1, which is opened on the end surface of the flange 2 that matches the cylinder 3, so that the pump body structure can gather impurities in the annular groove 1 during operation, and the above-mentioned impurities will be stored in the internal space of the annular groove 1, avoiding the impurities entering the cylinder 3 from causing indentations on the surfaces of the cylinder 3 and the roller 5, and even causing the cylinder 3 and the roller 5 to get stuck, which is beneficial to the operation of the pump body structure;

[0026] The pump body structure in the present invention also includes a step groove 4 adapted to the annular groove 1. The step groove 4 is opened on the inner wall of the inner ring of the cylinder 3, and impurities can enter the annular groove 1 through the step groove 4. The annular groove 1 is not directly opened on the end face of the flange 2 that matches the roller 5, which avoids the roller 5 being in a partially suspended state during operation, thereby avoiding the vibration problem caused by the movement of parts.

[0027] As an optional implementation, the inner diameter of the annular groove 1 is not less than the inner diameter of the cylinder 3 .

[0028] The inner diameter of the annular groove 1 of the present invention is not less than the inner diameter of the cylinder 3 , which structurally ensures that the annular groove 1 does not overlap with the inner cavity of the cylinder 3 and that the opening of the annular groove 1 does not affect the rotation of the roller 5 .

[0029] As an optional implementation, the cross-sections of the step groove 4 and the annular groove 1 are both rectangular.

[0030] The cross-sections of the step groove 4 and the annular groove 1 of the present invention are both rectangular, which are easy to process and can store more impurities under the same conditions, which is conducive to the smoother and more durable operation between the roller 5 and the cylinder 3.

[0031] As an optional implementation, the annular groove 1 is opened on the lower flange 2 .

[0032] The annular groove 1 of the present invention is provided on the lower flange 2 to facilitate the accumulation of impurities;

[0033] Preferably, the number of the annular groove 1 described in the present invention is 1, the volume of impurities is small, and 1 annular groove 1 is sufficient to collect impurities. Moreover, if more annular grooves 1 are opened, the operation of the roller 5 will be affected, which is not conducive to the operation of the pump body structure.

[0034] As an optional implementation, the inner diameter of the annular groove 1 is larger than the inner diameter of the cylinder 3 by 0.2 to 0.5 mm.

[0035] The inner diameter of the annular groove 1 of the present invention is 0.2-0.5 mm larger than the inner diameter of the cylinder 3. This technical feature can prevent the annular groove 1 from contacting the running roller 5, thereby ensuring the reliability of the pump body structure.

[0036] As an optional implementation, the outer ring diameter of the annular groove 1 is larger than the inner ring diameter of the cylinder 3 by 1 to 2 mm.

[0037] The outer diameter of the annular groove 1 of the present invention is 1-2 mm larger than the inner diameter of the cylinder 3, and the width of the annular groove 1 will not be too large or too small to affect the normal operation of the pump body structure.

[0038] As an optional implementation, the depth of the annular groove 1 is 2 to 4 mm.

[0039] The depth of the annular groove 1 of the present invention is 2-4 mm, which can effectively store impurities in the pump body structure. At this depth, there is no need to regularly clean the impurities in the annular groove 1, and the use is convenient.

[0040] As an optional implementation, the diameter of the step groove 4 is 1 to 2 mm larger than the diameter of the inner ring of the cylinder 3 .

[0041] The diameter of the step groove 4 of the present invention is 1-2 mm larger than the diameter of the inner ring of the cylinder 3 , so that the step groove 4 can connect the outer wall of the inner ring of the cylinder 3 with the annular groove 1 , making it easier for dust to enter the annular groove 1 .

[0042] As an optional implementation, the height of the step groove 4 is 1 to 1.5 mm.

[0043] The height of the step groove 4 of the present invention is 1 to 1.5 mm, so that impurities can enter the annular groove 1 without affecting the strength of the cylinder 3 itself.

[0044] A compressor comprises the pump body structure described above.

[0045] A compressor, including the pump body structure described above, can prevent the impurities entering the cylinder 3 from causing indentations on the surfaces of the cylinder 3 and the roller 5, or even causing the cylinder 3 and the roller 5 to become stuck.

[0046] 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 pump body structure, comprising a flange and a cylinder, characterized in that: It also includes an annular groove and a step groove matched with the annular groove, wherein the annular groove is formed on the end surface of the flange that matches with the cylinder, and the step groove is formed on the inner wall of the inner ring of the cylinder; The depth of the annular groove is 2 to 4 mm; The diameter of the step groove is 1 to 2 mm larger than the diameter of the cylinder inner ring.

2. The pump structure according to claim 1, characterized in that: The inner diameter of the annular groove is not less than the inner diameter of the cylinder.

3. The pump structure according to claim 1, characterized in that: The cross sections of the step groove and the annular groove are both rectangular.

4. The pump structure according to claim 1, characterized in that: The annular groove is formed on the lower flange.

5. The pump structure according to claim 1, characterized in that: The inner diameter of the annular groove is 0.2 to 0.5 mm larger than the inner diameter of the cylinder.

6. The pump structure according to claim 5, characterized in that: The outer ring diameter of the annular groove is 1 to 2 mm larger than the inner ring diameter of the cylinder.

7. The pump structure according to claim 1, characterized in that: The height of the step groove is 1 to 1.5 mm.

8. A compressor, characterized in that: The invention comprises a pump body structure as described in any one of claims 1 to 7.

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