Compressor

Abstract

The utility model discloses a compressor. The compressor comprises an air inlet connecting pipe, a shell and an air cylinder. The air cylinder is arranged in the shell; the air cylinder is provided with an air suction port channel. A groove is formed in the inner wall of the air suction port channel and / or the outer wall of the air inlet connecting pipe, and the groove is used for containing a thermosetting sealant; one end of the air inlet connecting pipe penetrates through the shell and is arranged in the air suction port channel in a clearance fit mode. The groove is formed in the periphery of the structure, extending into the air suction port channel, of the air inlet connecting pipe. The periphery of the structure, extending into the air suction port channel, of the air inlet connecting pipe is filled with thermosetting sealant, and one end of the air inlet connecting pipe is glued and fixed into the air suction port channel through the thermosetting sealant by means of heating and curing. The sealing performance and the heat insulation performance of the compressor are improved, and therefore the comprehensive performance of the compressor is better.

Description

Technical Field

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

[0002] The compressor includes a shell, a cylinder, a bend pipe, an air intake connecting pipe and a liquid reservoir. The liquid reservoir is arranged outside the shell, and the cylinder is arranged inside the shell. One end of the bend pipe is connected to the liquid reservoir, and the other end of the bend pipe is fixed to the air intake connecting pipe. The air intake connecting pipe passes through the shell and is fixed to the cylinder so that the bend pipe is connected to the cylinder. In the prior art, an air intake channel is arranged on the cylinder, and the air intake connecting pipe is connected to the air intake channel by an interference fit. However, due to reasons such as roundness, precision, and assembly deformation, this interference fit still has a certain gap, and this gap will cause the cooling force (refrigeration capacity) of the compressor to decrease. In addition, the interference fit is also prone to cause deformation inside the cylinder, affecting product quality.

[0003] It should be noted that the information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Utility Model Content

[0004] The purpose of the present application is to provide a compressor to solve the problems of gap and internal deformation of the cylinder caused by the existing interference fit method to fix the intake connecting pipe and the air intake channel.

[0005] To achieve the above-mentioned objectives, the present application provides a compressor, which includes: an intake connecting pipe, a shell and a cylinder; the cylinder is arranged in the shell; an intake port channel is arranged on the cylinder; a groove is provided on the inner wall of the intake port channel and / or the outer wall of the intake connecting pipe, and the groove accommodates a thermosetting sealant; one end of the intake connecting pipe passes through the shell and is arranged in the intake port channel in a clearance fit manner; the groove is arranged on the periphery of the structure where the intake connecting pipe extends into the intake port channel; the periphery of the structure where the intake connecting pipe extends into the intake port channel is filled with the thermosetting sealant, and the thermosetting sealant is cured by heating to glue and fix one end of the intake connecting pipe in the intake port channel.

[0006] Furthermore, the length of the structure where the air intake connecting pipe extends into the air intake channel is b, the length of the groove along the axial direction of the air intake channel is c, and 0.4b≤c≤b.

[0007] Furthermore, the single-side gap size between the air intake connecting pipe and the air intake channel is a, the maximum depth of the groove along the radial direction of the air intake channel is d, and a≤d≤20a.

[0008] Furthermore, 0.4b≤c≤0.6b.

[0009] Furthermore, a≤d≤10a.

[0010] Furthermore, 0.15mm≤a≤0.3mm.

[0011] Furthermore, 9.0mm≤b≤15.0mm.

[0012] Furthermore, the groove is a continuous annular groove, or a plurality of discrete annular grooves.

[0013] Further, the depth of the groove along its length direction is constant, or the depth of the groove along its length direction gradually increases from the outermost to the innermost part of the cylinder.

[0014] Furthermore, a chamfer is provided at the entrance of the air intake channel, and the groove is communicated with the notch formed by the chamfer.

[0015] The compressor provided by the present application has at least the following beneficial effects:

[0016] In the compressor described above, the air intake connecting pipe and the air intake channel are assembled by a clearance fit to overcome the problem of internal deformation of the cylinder caused by interference fit, thereby ensuring product quality; at the same time, a thermosetting sealant is used to glue one end of the air intake connecting pipe to the air intake channel to ensure that a good sealing and fixing effect can be achieved when the clearance fit is achieved; and the thermosetting sealant is accommodated by the grooves on the inner wall of the air intake channel and / or the outer wall of the air intake connecting pipe, so that the position of the sealant can be more stable and less prone to backflow, thereby being able to well determine the bonding position and ensure the sealing and fixing effect; in addition, the use of thermosetting sealant can also improve the thermal insulation performance and achieve a better thermal insulation effect. Therefore, the present application improves the sealing and thermal insulation performance of the compressor, thereby making the overall performance of the compressor better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Those skilled in the art will appreciate that the drawings are provided for a better understanding of the present application and do not constitute any limitation on the scope of the present application.

[0018] Figure 1 This is a schematic diagram of the compressor suction structure in the embodiment of the present application;

[0019] Figure 2 for Figure 1 A partial enlarged view of the suction structure of the compressor;

[0020] Figure 3 This is a dimensional diagram of the single-side gap between the air intake connecting pipe and the air intake channel in the embodiment of the present application;

[0021] Figure 4 This is a length dimension diagram of the structure in which the air intake connecting pipe extends into the air intake channel in the embodiment of the present application;

[0022] Figure 5 It is a length dimension diagram of the groove opened on the inner wall of the air inlet channel in the embodiment of the present application;

[0023] Figure 6 This is a depth dimension diagram of the groove opened on the inner wall of the air intake channel in the embodiment of the present application.

[0024] Among them, in the attached drawings: 1-bend pipe; 2-intake connecting pipe; 21-outer wall of the intake connecting pipe; 3-seat ring; 4-shell; 5-intake port channel; 51-inner wall of the intake port channel; 52-inlet of the intake port channel; 53-step; 6-groove; 7-chamfer; 8-notch. DETAILED DESCRIPTION

[0025] In order to make the purpose, advantages and features of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present application. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis of each drawing is different, and sometimes different scales are used.

[0026] As used in this application, the singular forms "one", "an", "one", and "the" include plural objects, the term "or" is generally used to include the meaning of "and / or", the term "several" is generally used to include the meaning of "at least one", and the term "at least two" is generally used to include the meaning of "two or more". In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or at least two of the features, and "one end" and "the other end" generally refer to two corresponding parts, which include not only endpoints. In addition, as used in this application, "installed", "connected", "connected", and one element "set" on another element should be understood in a broad sense, usually only indicating that there is a connection, coupling, cooperation or transmission relationship between the two elements, and the connection, coupling, cooperation or transmission between the two elements can be direct or indirect through an intermediate element, and cannot be understood as indicating or implying the spatial position relationship between the two elements, that is, one element can be in any orientation such as inside, outside, above, below or one side of another element, unless the content clearly indicates otherwise. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, directional terms such as above, below, up, down, upward, downward, left, right, etc. are used relative to the exemplary embodiments as shown in the figures, with the upward or upper direction toward the top of the corresponding figure, and the downward or lower direction toward the bottom of the corresponding figure.

[0027] The purpose of the present application is to provide a compressor to solve the problem of gap and internal deformation of the cylinder caused by the existing interference fit method to fix the intake connecting pipe and the air inlet channel.

[0028] The present application embodiment provides a compressor. Figure 1 and Figure 2 As shown, the compressor includes a bend pipe 1, an intake connecting pipe 2, a seat ring 3, a shell 4 and a cylinder. The cylinder is arranged in the shell 4, and an air intake channel 5 is arranged on the cylinder. One end of the bend pipe 1 is connected to the liquid reservoir, and the other end is connected to the intake connecting pipe 2. One end of the intake connecting pipe 2 passes through the shell 4 and is arranged in the air intake channel 5 in a clearance fit manner, thereby connecting the liquid reservoir and the cylinder. It should be noted that since the other structures and operations of the compressor according to the embodiment of the present application are known to ordinary technicians in the field, this application will not be described in detail.

[0029] Since the present application adopts a clearance fit between the air intake connecting pipe 2 and the air intake passage 5, the problem of deformation inside the cylinder due to interference fit can be avoided, thereby ensuring product quality. The clearance fit is also conducive to reducing the processing requirements for the air intake connecting pipe 2 and the air intake passage 5, thereby reducing the processing difficulty of parts and processing costs, and at the same time, it is easier to assemble the air intake connecting pipe 2, reducing the difficulty of assembling the air intake connecting pipe 2.

[0030] In some embodiments, since it is difficult to weld the housing 4 and the air intake connecting pipe 2, a seat ring 3 is fixed on the housing 4, and the air intake connecting pipe 2 is welded through the seat ring 3. However, it should be understood that if the housing 4 and the air intake connecting pipe 2 can be directly welded, the seat ring 3 can be eliminated. Therefore, the seat ring 3 is optional.

[0031] On the basis of clearance fit, the present application also needs to use colloid to bond and fix the air intake connecting pipe 2. And the present application specifically uses thermosetting sealant instead of ordinary adhesive. After the thermosetting sealant is heated and cured, one end of the air intake connecting pipe 2 can be glued and fixed in the air intake channel 5, so as to achieve a sealing and fixing effect, and at the same time, the heat insulation performance of the thermosetting sealant material itself is utilized to achieve a heat insulation effect. Moreover, compared with ordinary glue, thermosetting sealant is not easy to flow back, and can achieve a better sealing and fixing effect.

[0032] The basic principles for selecting thermosetting sealants are: (1) good thermal curing efficiency; (2) good resistance to refrigerant and oil corrosion; (3) good temperature tolerance, enabling it to maintain good sealing performance at -50°C to 200°C; (4) good pressure resistance, generally, it needs to withstand pressure >5mPa; (5) good resistance to vibration and cyclic pressure changes during the operation of the compressor.

[0033] The present application does not limit the specific type of thermosetting sealant, and any thermosetting sealant material that meets the above requirements can be used, for example, epoxy resin thermosetting sealant can be used.

[0034] On the other hand, a groove 6 is provided on the inner wall 51 of the air intake passage 5, and the groove 6 can be arranged around the air intake connecting pipe 2. The groove 6 should be arranged on the periphery of the structure where the air intake connecting pipe 2 extends into the air intake passage 5, that is, the groove 6 is arranged within the length range of the structure where the air intake connecting pipe 2 extends into the air intake passage 5. The length of the groove 6 can be equal to or less than the length of the structure where the air intake connecting pipe 2 extends into the air intake passage 5. More preferably, the length of the groove 6 is less than the length of the structure where the air intake connecting pipe 2 extends into the air intake passage 5, so as to form a redundant space at one end of the groove 6 away from the inlet 52 of the air intake passage 5, so as to prevent the sealant from overflowing and affecting the air intake, and at the same time avoid increasing the amount of sealant used and increasing the cost.

[0035] It should be understood that there is a gap between the inner wall 51 of the air inlet channel 5 and the outer wall 21 of the air inlet connecting pipe 2, that is, the inner diameter of the air inlet channel 5 is larger than the outer diameter of the air inlet connecting pipe 2 to achieve a gap fit. On this basis, the inner diameter of the groove 6 on the inner wall 51 of the air inlet channel 5 is larger than the inner diameter of the air inlet channel 5, which can store the thermosetting sealant in advance and prevent the sealant from flowing back. Therefore, the main function of the groove 6 is to accommodate the thermosetting sealant and prevent the thermosetting sealant from flowing back, so that the bonding position can be better determined to ensure the sealing and fixing effect.

[0036] In practice, the outer wall 21 of the air intake connecting pipe 2 may also be provided with a groove 6. Furthermore, the groove 6 may be provided on at least one of the inner wall 51 of the air intake passage 5 and the outer wall 21 of the air intake connecting pipe 2. The groove 6 may be a continuous annular groove or a plurality of discrete annular grooves. Here, the continuous annular groove refers to a whole annular groove as shown in the drawings, and the discrete annular groove refers to a plurality of independent annular grooves.

[0037] Based on this, the periphery of the structure where the air intake connecting pipe 2 extends into the air intake channel 5 is filled with thermosetting sealant, and the thermosetting sealant is cured by heating to glue and fix one end of the air intake connecting pipe 2 in the air intake channel 5.

[0038] In more detail, with respect to the compressor provided in the embodiment of the present application, the embodiment of the present application also provides an assembly method of the compressor suction structure, comprising the following steps:

[0039] Step 1: Before inserting one end of the air intake connecting pipe 2 into the air intake channel 5, inject the thermosetting sealant into the groove 6 and / or the air intake channel 5; it should be noted that when the groove 6 is provided on the inner wall 51 of the air intake channel 5, during the injection process, the thermosetting sealant is mainly filled in the groove 6 of the air intake channel 5, but the thermosetting sealant may also be partially filled outside the groove 6 of the air intake channel 5;

[0040] Step 2: After injecting the thermosetting sealant, one end of the air intake connecting pipe 2 is passed through the housing 4 and inserted into the air intake passage 5 in a clearance fit manner, so that the periphery of the structure where the air intake connecting pipe 2 extends into the air intake passage 5 is filled with the thermosetting sealant;

[0041] Step 3: After the air intake connecting pipe 2 is inserted, the inside of the air intake connecting pipe 2 is heated to solidify the thermosetting sealant, thereby gluing and fixing one end of the air intake connecting pipe 2 in the air intake passage 5 .

[0042] Through the above steps 1-3, a good sealing and fixing effect between the air intake connecting pipe 2 and the air intake channel 5 and a good heat insulation effect can be ensured, thereby ultimately improving the performance of the compressor.

[0043] In some embodiments of the present application, when heating is performed inside the air intake connecting pipe 2, the heating device is controlled to heat at a temperature of 200°C to 500°C, and the longest heating time does not exceed 10 minutes.

[0044] Since the position, amount and distance of the thermosetting sealant from the pipe wall will affect the local curing efficiency, the heating device should be located above the center of the intake connecting pipe 2, and then move along the circumference of the pipe wall, and the heating section should cover the position of the thermosetting sealant from front to back; in addition, the temperature of the heating device cannot be equal to the heating temperature of the pipe and the thermosetting sealant, and the pipe and the cylinder should have good heat resistance and heat conduction effects. Therefore, under the appropriate parameter ratio, the heating temperature of the thermosetting sealant is preferably 100°C-300°C, so that the sealant can be cured in this state. In view of the risk of sealing failure caused by stopping heating in a non-completely cured state, it must be fully cured in place at one time. After curing is completed, the compressor should remain in a vertical state waiting for the sealant to cool for the first time. As a result, the thermosetting sealant used in this application can be well cured under the process of heating the intake connecting pipe 2 from the inside. Specifically, heating is performed in the intake connecting pipe 2 by a suitable heating device, and the heat heats the thermosetting sealant by radiation, conduction, etc., so that the thermosetting sealant is cured to achieve the purpose of bonding. The present application does not limit the heating method, for example, high frequency heating and thermal radiation heating are optional.

[0045] It should also be noted that compared with the ordinary bonding process, the thermal curing process can ensure that the sealant will not flow back during the subsequent assembly of the compressor, and the intake connecting pipe 2 is fixed in the correct position, thereby ensuring the assembly depth of the intake connecting pipe 2. At the same time, the thermal curing process can achieve good sealing and heat insulation, thereby improving the performance of the compressor.

[0046] The depth of the groove 6 along the radial direction of the air intake channel 5 can be adjusted and set according to the gap between the air intake channel 5 and the air intake connecting pipe 2, and the length of the groove 6 along the axial direction of the air intake channel 5 can be adjusted and set according to the length of the structure of the air intake connecting pipe 2 extending into the air intake channel 5.

[0047] like Figure 3As shown, the single-sided gap size between the air intake connecting pipe 2 and the air intake channel 5 is a, specifically the gap between the inner wall 51 of the air intake channel 5 and the outer wall 21 of the air intake connecting pipe 2. Dimension a should not be too large or too small; if a is too large, it will easily affect the sealing effect, and will also affect the bonding strength and bonding efficiency; if a is too small, it will be difficult to assemble the air intake connecting pipe 2. For this reason, after research, 0.15mm≤a≤0.3mm; this gap size can achieve the clearance fit between the air intake connecting pipe 2 and the air intake channel 5, and avoid deformation inside the cylinder, while ensuring that the air intake connecting pipe 2 can be assembled normally, and the sealing effect of the sealant is optimized. Optionally, the value of a is 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm or 0.3mm.

[0048] like Figure 4 As shown, the length of the structure where the air intake connecting pipe 2 extends into the air intake passage 5 is b. As those skilled in the art will appreciate, compressors of different models usually have different lengths (b), and therefore, the length of the structure where the air intake connecting pipe 2 extends into the air intake passage 5 is not limited. Optionally, 9.0 mm ≤ b ≤ 15.0 mm, and more preferably, b = 12 mm.

[0049] At the same time, if Figure 5 As shown, the length of the groove 6 along the axial direction of the air intake channel 5 is c, and c≤b. When c=b, the entire periphery of the structure where the air intake connecting pipe 2 extends into the air intake channel 5 is the groove 6; when c<b, the periphery of a partial area of ​​the structure where the air intake connecting pipe 2 extends into the air intake channel 5 is the groove 6. More appropriately, the position of the groove 6 corresponds to the middle area of ​​the structure where the air intake connecting pipe 2 extends into the air intake channel 5, so that there will not be too much gap on both sides of the structure where the air intake connecting pipe 2 extends into the air intake channel 5, and better sealing can be achieved. Here, the middle area should not be narrowly understood as the absolute center position, but should be understood as the middle area being any position on both sides of the structure where the air intake connecting pipe 2 extends into the air intake channel 5.

[0050] Specifically in this embodiment, a chamfer 7 is provided at the inlet 52 of the air inlet channel 5, and a notch 8 (focusing on Figure 3 and Figure 4 ), and at the same time, one end of the groove 6 away from the inlet 52 of the air inlet channel 5 forms a step 53 with the inner wall 51 of the air inlet channel 5. In this way, there will not be too much gap at both ends of the groove 6. In practice, a thermosetting sealant may be provided between the chamfer 7 and the air inlet connecting pipe 2, or may not be provided, and there is no requirement for this.

[0051] In other embodiments, the chamfer 7 can be eliminated. In this case, preferably, the groove 6 is connected to the gap at the entrance 52 of the air intake channel 5, and forms a step 53 with the inner wall 51, so that after the air intake connecting pipe 2 is inserted, both sides of the insertion structure form a gap (size a) with the inner wall 51 of the air intake channel 5, and the middle area of ​​the insertion structure corresponds to the position of the groove 6.

[0052] In some embodiments, the depth of the groove 6 along its length direction is constant, that is, it is set to a constant depth. In other embodiments, the groove 6 is set to a variable depth, generally increasing in depth from the outermost to the innermost of the cylinder, so that the innermost depth of the groove 6 is the largest, which can effectively prevent the sealant from flowing back. In this embodiment, the depth of the groove 6 along its length direction gradually increases from the outermost to the innermost of the cylinder, and the anti-backflow effect is better.

[0053] like Figure 6 As shown, the maximum depth of the groove 6 along the radial direction of the air intake passage 5 is d, and d≥a. The maximum depth of the groove 6 should not be too large, otherwise it will affect the structural stability of the cylinder and easily reduce the heating efficiency. Further, after research, a≤d≤20a, for example, the value of d is a, 5a, 10a, 15a or 20a.

[0054] Continue to refer Figures 3 to 6 In the preferred embodiment of the present application, 0.4b≤c≤b, and a≤d≤20a. Such a setting can ensure good sealing between the air intake connecting pipe 2 and the air inlet channel 5, and at the same time, there is some safety redundancy in the amount of sealant, which can better prevent its backflow. Further, 0.4b≤c≤0.6b; further, a≤d≤10a; the sealing and fixing effect is better, and the sealant can also be prevented from overflowing. Preferably, c=0.6b, d=10a.

[0055] The groove 6 can have various shapes, which are not limited in the present application. Preferably, the cross-sectional shape of the groove 6 along the axial direction of the air inlet passage 5 is rectangular, triangular or trapezoidal, which are easy to process and can meet the requirements of the dimensions c and d.

[0056] Next, some beneficial effects that can be achieved by the compressor and the assembly method of the compressor intake structure provided in the embodiments of the present application are further illustrated through experimental data.

[0057] In this experiment, a compressor of a comparative embodiment and a compressor of an embodiment of the present application are provided; the compressor of the comparative embodiment uses an interference fit to assemble the air intake connecting pipe 2 and the air intake port channel 5; the compressor of the embodiment of the present application uses a clearance fit to assemble the air intake connecting pipe 2 and the air intake port channel 5, and at the same time uses a thermosetting sealant to bond and fix the air intake connecting pipe 2, and cooperates with the setting of the groove 6. Then, a cold force comparison test is performed on the compressor of the comparative embodiment and the compressor of the embodiment of the present application, and the final results are shown in Table 1.

[0058] Table 1: Cold force, input force and COP data

[0059]

[0060] It can be seen from Table 1 that the compressor of the embodiment of the present application has certain advantages in cooling power and input power, the COP value has been significantly improved, and the overall performance is better.

[0061] In summary, the beneficial effects of the compressor provided by the embodiment of the present application are:

[0062] (1) The clearance fit between the air intake connecting pipe 2 and the air intake passage 5 overcomes the problem of internal deformation of the cylinder caused by interference fit, thereby ensuring product quality.

[0063] (2) One end of the air intake connecting pipe 2 is glued and fixed in the air intake channel 5 by using thermosetting sealant, so as to ensure that the clearance fit can also achieve a good sealing and fixing effect.

[0064] (3) By accommodating the thermosetting sealant through the groove 6 on the inner wall 51 of the air intake channel 5 and / or the outer wall 21 of the air intake connecting pipe 2, the position of the sealant can be made more stable and less likely to flow back, thereby making it possible to well determine the bonding position and ensure the sealing and fixing effect.

[0065] (4) The use of thermosetting sealants can also improve thermal insulation performance and achieve better insulation effects.

[0066] (5) The length c and depth d of the groove 6 work together to ensure the sealing efficiency while providing a good thermal insulation layer. At the same time, the minimum gap a ensures a good sealing layer and can prevent the sealant from overflowing.

[0067] Therefore, in order to solve the technical problem of this application, on the one hand, it is necessary to ensure the position of the sealant and at the same time allow the sealant to solidify without flowing naturally, otherwise it will increase the risk of internal foreign matter and reduce the performance of the compressor. On the other hand, it is necessary to ensure that the sealant provides a good sealing layer and thermal insulation layer after solidification.

[0068] Finally, according to the technical solution provided in the embodiment of the present application, the sealing performance and thermal insulation performance of the compressor can be effectively improved, the cooling power of the compressor can be increased, the input force of the compressor can be reduced, and finally the COP of the compressor can be improved, so that the overall performance of the compressor is better.

[0069] Finally, it should be noted that the technical solution of the present application can be applied to various types of compressors, and the compressor type is not limited. In addition, although the drawings describe the groove 6 on the inner wall 51 of the air intake channel 5, those skilled in the art can understand that the groove 6 can also be provided on the outer wall 21 of the air intake connecting pipe 2 in a substantially similar manner, thereby obtaining a similar or substantially the same effect.

[0070] The above description is only a description of the preferred embodiment of the present application, and is not any limitation to the scope of the present application. Any changes and modifications made by ordinary technicians in the field of the present application based on the above disclosure shall fall within the scope of protection of the technical solution of the present application.

Claims

1. A compressor, characterized in that: include: An intake connecting pipe, a shell and a cylinder; the cylinder is arranged in the shell; an air intake channel is arranged on the cylinder; a groove is provided on the inner wall of the air intake channel and / or the outer wall of the intake connecting pipe, and the groove contains a thermosetting sealant; one end of the intake connecting pipe passes through the shell and is arranged in the air intake channel in a clearance fit manner; the groove is arranged on the periphery of the structure in which the intake connecting pipe extends into the air intake channel; the periphery of the structure in which the intake connecting pipe extends into the air intake channel is filled with the thermosetting sealant, and the thermosetting sealant is cured by heating to glue and fix one end of the intake connecting pipe in the air intake channel.

2. The compressor according to claim 1, characterized in that The length of the structure where the air intake connecting pipe extends into the air intake channel is b, the length of the groove along the axial direction of the air intake channel is c, and 0.4b≤c≤b.

3. The compressor according to claim 1 or 2, characterized in that: The single-side gap size between the air intake connecting pipe and the air intake channel is a, the maximum depth of the groove along the radial direction of the air intake channel is d, and a≤d≤20a.

4. The compressor according to claim 2, characterized in that 0.4b≤c≤0.6b.

5. The compressor according to claim 3, characterized in that a≤d≤10a.

6. The compressor according to claim 3, characterized in that 0.15mm≤a≤0.3mm.

7. The compressor according to claim 2, characterized in that 9.0mm≤b≤15.0mm.

8. The compressor according to claim 1, characterized in that The groove is a continuous annular groove or a plurality of discrete annular grooves.

9. The compressor according to claim 1, characterized in that The depth of the groove along its length direction is constant, or the depth of the groove along its length direction gradually increases from the outermost to the innermost of the cylinder.

10. The compressor according to claim 1, characterized in that A chamfer is arranged at the entrance of the air inlet channel, and the groove is communicated with the notch formed by the chamfer.

Images