Guide connecting structure and compressor
By setting a heat insulation section between the intake sealing section and the tail sealing section and setting a guide connection structure on the heat insulation section, the deformation and assembly problems caused by the contact between the intake connecting pipe and the annular groove section and the tail sealing section are solved, the assembly accuracy and reliability are improved, and the performance of the compressor is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-02
Smart Images
Figure CN224315162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and in particular to a guide connection structure and a compressor. Background Technology
[0002] When installing the compressor's intake connection pipe, the compressor cylinder's suction port and the intake connection pipe are typically connected via a straight-through hole, with a slight interference fit to ensure tightness. However, without insulation, external heat can easily be conducted through the cylinder's metal components to the suction port and the gaseous refrigerant within the intake connection pipe. This causes heat exchange in the gaseous refrigerant before it enters the compressor, resulting in an increase in temperature and thermal expansion. Consequently, the refrigerant flow rate decreases, ultimately affecting the compressor's performance.
[0003] To address the aforementioned issues, related technologies design both the cylinder's intake port and intake connecting pipe as tapered structures, with the tapered angle of the intake port exceeding that of the intake connecting pipe. Furthermore, while ensuring sufficient length for both the intake sealing section and the tail sealing section within the intake port, an annular groove is added inside the intake port to create a heat-insulating space between the intake port and the intake connecting pipe. For details, please refer to... Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a structure in the prior art that connects an intake pipe to a cylinder; Figure 2 This is a schematic diagram of the structure of the intake connection pipe in the prior art that contacts a right-angled edge. (Example) Figure 1 As shown, an intake sealing section 1011 is provided at one end of the intake port 101 of the cylinder 10 near the port opening, and a tail sealing section 1012 is provided at one end of the intake port 101 of the cylinder 10 near the inner diameter of the cylinder 10. The intake sealing section 1011 and the first connecting part 111 of the intake connecting pipe 11, and the tail sealing section 1012 and the second connecting part 112 of the intake connecting pipe 11 are all interference fit connections. The intake sealing section 1011, the tail sealing section 1012, the first connecting part 111 and the second connecting part 112 are all truncated cones that are wider at the top and narrower at the bottom. An annular groove section 1013 is provided between the intake sealing section 1011 and the tail sealing section 1012 so that when the intake connecting pipe 11 is inserted into the intake port 101, there is a heat insulation layer between it and the intake port 101, thereby improving the heat insulation effect.
[0004] However, from Figure 2 It can be seen that a right-angled edge is formed between the annular groove section 1013 and the tail sealing section 1012. When assembling the intake connecting pipe 11, deviations are prone to occur, causing the front end of the intake connecting pipe 11 to touch the right-angled edge, resulting in problems such as deformation of the intake connecting pipe 11 or failure to properly assemble even when the pressing force is up to standard. Utility Model Content
[0005] The purpose of this utility model is to provide a guide connection structure and compressor to solve one or more of the problems existing in the prior art, such as the front end of the intake connection pipe easily contacting the right-angle edge formed between the annular groove section and the tail sealing section, causing deformation of the intake connection pipe or the pressure reaching the standard but the assembly not being in place.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a guide connection structure for connecting the cylinder of a compressor to the intake connection pipe; an intake sealing section is provided at one end of the intake port of the cylinder near the orifice, and a tail sealing section is provided at one end of the intake port of the cylinder near the inner diameter of the cylinder; the intake sealing section and the first connection portion of the intake connection pipe, as well as the tail sealing section and the second connection portion of the intake connection pipe, are all interference-fitted; a heat insulation section is provided between the intake sealing section and the tail sealing section to provide a heat insulation layer between the intake port and the intake connection pipe; the guide connection structure is disposed on the heat insulation section, and the guide connection structure is configured such that when the intake connection pipe is assembled into the intake port, the end of the second connection portion near the inner diameter of the cylinder does not contact the connection between the heat insulation section and the tail sealing section.
[0007] Optionally, the radius of the end face of the heat insulation section near the intake sealing section is greater than the radius of the end face of the heat insulation section near the tail sealing section, the radius of the end face of the heat insulation section near the tail sealing section is slightly greater than or equal to the radius of the end face of the tail sealing section near the heat insulation section, and the difference between the radius of the end face of the heat insulation section near the intake sealing section and the radius of the end face of the heat insulation section near the tail sealing section is not less than the difference between the radius of the end face of the intake sealing section near the heat insulation section and the radius of the end face of the tail sealing section near the heat insulation section.
[0008] Optionally, the guide connection structure includes a sloped transition sidewall formed between the end face of the heat insulation section near the intake sealing section and the end face of the tail sealing section near the heat insulation section.
[0009] Optionally, the guide connection structure includes a curved transition sidewall formed between the end face of the heat insulation section near the air intake sealing section and the end face of the tail sealing section near the heat insulation section.
[0010] Optionally, the guide connection structure includes a segmented transition sidewall formed between the end face of the heat insulation section near the intake sealing section and the end face of the tail sealing section near the heat insulation section.
[0011] Optionally, the segmented transition sidewall includes a sidewall formed by connecting a straight segment and an arc segment, wherein the straight segment is connected to the intake sealing segment and the arc segment is connected to the tail sealing segment.
[0012] Optionally, the processing angle range of the guide connection structure includes 180 degrees to 360 degrees.
[0013] Optionally, the depth of the air inlet is greater than the sum of the lengths of the first connecting portion and the second connecting portion.
[0014] Optionally, the air intake connection pipe is concentrically arranged with the air intake port.
[0015] To achieve the above objectives, this utility model also provides a compressor, including a cylinder and an intake connecting pipe connected to the cylinder. An intake sealing section is provided at one end of the intake port of the cylinder near the port opening, and a tail sealing section is provided at one end of the intake port of the cylinder near the inner diameter of the cylinder. The intake sealing section and the first connecting portion of the intake connecting pipe, as well as the tail sealing section and the second connecting portion of the intake connecting pipe, are both interference-fitted. A heat insulation section is provided between the intake sealing section and the tail sealing section to provide a heat insulation layer between the intake port and the intake connecting pipe. The heat insulation section is provided with the guide connecting structure described in any of the above embodiments.
[0016] Compared with the prior art, the guide connection structure and compressor provided by this utility model have the following beneficial effects:
[0017] The present invention provides a guide connection structure for connecting the cylinder of a compressor to the intake connection pipe. An intake sealing section is provided at one end of the intake port of the cylinder near the port opening, and a tail sealing section is provided at one end of the intake port of the cylinder near the inner diameter of the cylinder. The intake sealing section and the first connection portion of the intake connection pipe, as well as the tail sealing section and the second connection portion of the intake connection pipe, are both interference-fitted. A heat insulation section is provided between the intake sealing section and the tail sealing section to provide a heat insulation layer between the intake port and the intake connection pipe. The guide connection structure is disposed on the heat insulation section and is configured such that when the intake connection pipe is assembled into the intake port, the end of the second connection portion near the inner diameter of the cylinder does not contact the connection between the heat insulation section and the tail sealing section. Therefore, the guiding connection structure provided by this utility model, by setting a heat insulation section between the intake sealing section and the tail sealing section, creates a heat insulation layer between the intake port and the intake connecting pipe, which increases the volume of gas that can be contained and improves the heat insulation effect. Furthermore, by setting a guiding connection structure on the heat insulation section, during the assembly of the intake connecting pipe, the end of the second connecting part near the inner diameter of the cylinder can be guided to avoid contact with the connection between the heat insulation section and the tail sealing section. This helps ensure that the second connecting part of the intake connecting pipe can be accurately and smoothly inserted into the tail sealing section inside the intake port, thereby avoiding situations where the intake connecting pipe deforms or the pressure is sufficient but the assembly is not complete. This improves the assembly accuracy and reliability of the intake connecting pipe, thus ensuring the performance of the compressor.
[0018] Since the compressor provided by this utility model and the guide connection structure provided by this utility model belong to the same inventive concept, the compressor provided by this utility model has at least all the advantages of the guide connection structure provided by this utility model. For the advantages of the compressor provided by this utility model, please refer to the relevant description of the beneficial effects of the guide connection structure provided by this utility model, which will not be repeated here. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a structure in the prior art that connects an intake pipe to a cylinder;
[0020] Figure 2 A schematic diagram of the structure of the intake connection pipe in the prior art that touches a right-angled edge;
[0021] Figure 3 This is a specific example diagram illustrating the connection between an intake connecting pipe and a cylinder, as provided in Embodiment 1 of this utility model.
[0022] Figure 4 for Figure 3 A schematic diagram of the cross-section of the air intake connection pipe and the air intake port with an interference fit.
[0023] Figure 5 This is another specific example diagram showing the connection between an intake connecting pipe and a cylinder, as provided in Embodiment 1 of this utility model;
[0024] Figure 6 for Figure 5 A schematic diagram of the cross-section of the air intake connection pipe and the air intake port with an interference fit.
[0025] Figure 7 This is another specific example diagram showing the connection between an intake connecting pipe and a cylinder, provided in Embodiment 1 of this utility model;
[0026] Figure 8 for Figure 7 A schematic diagram of the cross-section of the air intake connection pipe and the air intake port with an interference fit.
[0027] The annotations in the attached figures are explained as follows:
[0028] 10-Cylinder, 101-Intake port, 1011-Intake sealing section, 1012-Tail sealing section, 1013-Annular groove section, 11-Intake connecting pipe, 111-First connecting part, 112-Second connecting part, 20-Intake port, 201-Heat insulation section, 2011-Sloping transition sidewall, 2012-Curved transition sidewall, 2013-Segmented transition sidewall. Detailed Implementation
[0029] The guiding connection structure and compressor proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, only used to facilitate and clarify the purpose of illustrating the embodiments of this utility model. Please refer to the drawings to make the purpose, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Any modifications to the structure, changes in proportions, or adjustments to the size, if they are the same as or similar to the effects and purposes achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Specific design features of this utility model disclosed herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined in part by the specific application and usage environment. Furthermore, in the embodiments described below, the same reference numerals are sometimes used in different figures to denote the same parts or parts with the same function, and repeated descriptions are omitted.
[0030] Example 1
[0031] This embodiment provides a guide connection structure for connecting the compressor cylinder to the intake connection pipe. For details, please refer to... Figure 3 and Figure 4 , Figure 3 This is a specific example diagram showing the connection between the intake pipe and the cylinder provided in this embodiment; Figure 4 for Figure 3 A schematic cross-sectional view of the air intake connection pipe and the air intake port with an interference fit. From Figure 3 and Figure 4 It can be seen that an intake sealing section 1011 is provided at one end of the intake port 20 of the cylinder 10 near the port opening, and a tail sealing section 1012 is provided at one end of the intake port 20 of the cylinder 10 near the inner diameter of the cylinder 10. The intake sealing section 1011 and the first connecting part 111 of the intake connecting pipe 11, and the tail sealing section 1012 and the second connecting part 112 of the intake connecting pipe 11, are both interference-fitted. A heat insulation section 201 is provided between the tail sealing section 1012 to provide a heat insulation layer between the air inlet 20 and the air inlet connecting pipe 11. The guide connection structure is provided on the heat insulation section 201 and is configured such that when the air inlet connecting pipe 11 is assembled into the air inlet 20, the end of the second connecting part 112 near the inner diameter of the cylinder 10 does not contact the connection between the heat insulation section 201 and the tail sealing section 1012.
[0032] Therefore, the guiding connection structure provided in this embodiment, by providing a heat insulation section 201 between the intake sealing section 1011 and the tail sealing section 1012, creates a heat insulation layer between the intake port 20 and the intake connecting pipe 11, which increases the volume of gas that can be contained and improves the heat insulation effect. Furthermore, by providing a guiding connection structure on the heat insulation section 201, when assembling the intake connecting pipe 11, it can guide the end of the second connecting part 112 near the inner diameter of the cylinder 10 to avoid contact with the connection between the heat insulation section 201 and the tail sealing section 1012. This helps ensure that the second connecting part 112 of the intake connecting pipe 11 can be accurately and smoothly inserted into the tail sealing section 1012 within the intake port 20, thereby avoiding situations where the intake connecting pipe 11 deforms or the pressure is sufficient but the assembly is not complete. This improves the assembly accuracy and reliability of the intake connecting pipe 11, and thus ensures the performance of the compressor.
[0033] Specifically, the radius of the end face of the heat insulation section 201 near the intake sealing section 1011 is greater than the radius of the end face of the heat insulation section 201 near the tail sealing section 1012, the radius of the end face of the heat insulation section 201 near the tail sealing section 1012 is slightly greater than or equal to the radius of the end face of the tail sealing section 1012 near the heat insulation section 201, and the difference between the radius of the end face of the heat insulation section 201 near the intake sealing section 1011 and the radius of the end face of the heat insulation section 201 near the tail sealing section 1012 is not less than the difference between the radius of the end face of the intake sealing section 1011 near the heat insulation section 201 and the radius of the end face of the tail sealing section 1012 near the heat insulation section 201. Therefore, by making the radius of the end face of the heat insulation section 201 near the intake sealing section 1011 larger than the radius of the end face of the heat insulation section 201 near the tail sealing section 1012, the heat insulation section 201 can be guaranteed to be a frustum shape that is wider at the top and narrower at the bottom, laying a good foundation for the intake connecting pipe 11 to be inserted into the intake port 20. By making the radius of the end face of the heat insulation section 201 near the tail sealing section 1012 slightly larger than or equal to the radius of the end face of the tail sealing section 1012 near the heat insulation section 201, the connection between the heat insulation section 201 and the tail sealing section 1012 can be guaranteed to be free of sharp edges, thus laying a good foundation for the second connecting part 112 of the intake connecting pipe 11 to be accurately and smoothly inserted into the tail sealing section 1012 in the intake port 20. By ensuring that the difference between the radius of the end face of the heat insulation section 201 near the intake sealing section 1011 and the radius of the end face of the heat insulation section 201 near the tail sealing section 1012 is not less than the difference between the radius of the end face of the intake sealing section 1011 near the heat insulation section 201 and the radius of the end face of the tail sealing section 1012 near the heat insulation section 201, it is guaranteed that the intake connecting pipe 11 can be installed into the intake port 20, and at the same time, a heat insulation layer is provided between the intake port 20 and the intake connecting pipe 11.
[0034] Exemplary, in some of the exemplary embodiments, the intake sealing section 1011, the tail sealing section 1012, the first connecting portion 111, and the second connecting portion 112 are all frustum-shaped structures that are wider at the top and narrower at the bottom. The taper of the intake sealing section 1011 is greater than that of the first connecting portion 111, and the taper of the tail sealing section 1012 is greater than that of the second connecting portion 112, so that the intake connecting pipe 11 can be interference-fitted with the intake port 20.
[0035] It should be noted that this utility model does not impose excessive limitations on the specific type of the guide connection structure, as long as the connection between the heat insulation section 201 and the tail sealing section 1012 is smooth, without obvious sharp edges or burrs. For example, please refer to [reference needed]. Figure 3 and Figure 4 ,from Figure 3 and Figure 4 As can be seen, in some embodiments, the guide connection structure may include a sloped transition sidewall 2011 formed between the end face of the heat insulation section 201 near the air intake sealing section 1011 and the end face of the tail sealing section 1012 near the heat insulation section 201.
[0036] It should be noted that the above is merely an exemplary description of the type of guide connection structure, and not a limitation of this utility model.
[0037] For example, please see Figure 5 and Figure 6 , Figure 5 This is another specific example diagram showing the connection between the intake connecting pipe and the cylinder provided in this embodiment; Figure 6 for Figure 5 A schematic cross-sectional view of the air intake connection pipe and the air intake port with an interference fit. From Figure 5 and Figure 6 It can be seen that, in some other embodiments, the guide connection structure may also include a curved transition sidewall 2012 formed between the end face of the heat insulation section 201 near the air intake sealing section 1011 and the end face of the tail sealing section 1012 near the heat insulation section 201.
[0038] For example, please see Figure 7 and Figure 8 , Figure 7 This is another specific example diagram showing the connection between the intake connecting pipe and the cylinder provided in this embodiment; Figure 8 for Figure 7 A schematic cross-sectional view of the air intake connection pipe and the air intake port with an interference fit. From Figure 7 and Figure 8 It can be seen that, in some other embodiments, the guide connection structure may also include a segmented transition sidewall 2013 formed between the end face of the heat insulation section 201 near the air intake sealing section 1011 and the end face of the tail sealing section 1012 near the heat insulation section 201.
[0039] For example, please continue to see Figure 7 and Figure 8 ,like Figure 7 and Figure 8 As shown, in some embodiments, the segmented transition sidewall 2013 may include a sidewall formed by connecting a straight segment and an arc segment, wherein the straight segment is connected to the intake sealing section 1011 and the arc segment is connected to the tail sealing section 1012.
[0040] It should be noted that the above is merely an exemplary description of the type of segmented transition sidewall 2013, and not a limitation of this utility model.
[0041] For example, in some other embodiments, the segmented transition sidewall 2013 may also include a sidewall formed by multiple line segments connected together.
[0042] Preferably, the processing angle range of the guide connection structure includes 180 degrees to 360 degrees. Therefore, the processing angle of the guide connection structure can be selected according to the actual application scenario.
[0043] For example, in some embodiments, the processing angle of the guide connection structure is 180 degrees, that is, only half a circle of the guide connection structure is processed; in other embodiments, the processing angle of the guide connection structure is 360 degrees, that is, the entire circumference of the guide connection structure is processed.
[0044] Preferably, the depth of the air inlet 20 is greater than the sum of the lengths of the first connecting portion 111 and the second connecting portion 112. This ensures that the lengths of the air intake sealing section 1011 and the tail sealing section 1012 within the air inlet 20 are sufficient, thereby allowing the addition of a heat insulation section 201 between the air intake sealing section 1011 and the tail sealing section 1012.
[0045] Furthermore, the intake connecting pipe 11 is concentrically arranged with the intake port 20. This not only helps to ensure a tight fit between the intake connecting pipe 11 and the cylinder 10, but also improves the assembly accuracy of the intake connecting pipe 11.
[0046] Example 2
[0047] This embodiment provides a compressor. For details, please refer to [link to documentation]. Figures 3 to 8 .like Figures 3 to 8 As shown, the compressor includes a cylinder 10 and an intake connecting pipe 11 connected to the cylinder 10. An intake sealing section 1011 is provided at one end of the intake port 20 of the cylinder 10 near the port opening, and a tail sealing section 1012 is provided at one end of the intake port 20 of the cylinder 10 near the inner diameter of the cylinder 10. The intake sealing section 1011 and the first connecting part 111 of the intake connecting pipe 11, and the tail sealing section 1012 and the second connecting part 112 of the intake connecting pipe 11, are all interference fit connections. A heat insulation section 201 is provided between the intake sealing section 1011 and the tail sealing section 1012 so that there is a heat insulation layer between the intake port 20 and the intake connecting pipe 11. The heat insulation section 20 is provided with the guide connection structure described in any of the above embodiments.
[0048] Since the compressor provided in this embodiment belongs to the same inventive concept as the guide connection structure described in any of the above embodiments, the compressor provided in this embodiment has at least all the advantages of the guide connection structure provided in the above embodiments. For the advantages of the compressor provided in this embodiment, please refer to the relevant description of the beneficial effects of the guide connection structure provided in the above embodiments, which will not be repeated here.
[0049] In summary, the guide connection structure and compressor provided by this utility model have the following advantages: The guide connection structure provided by this utility model is used for connecting the cylinder of the compressor with the intake connection pipe; an intake sealing section is provided at one end of the intake port of the cylinder near the orifice, and a tail sealing section is provided at one end of the intake port of the cylinder near the inner diameter of the cylinder; the intake sealing section and the first connection part of the intake connection pipe, as well as the tail sealing section and the second connection part of the intake connection pipe, are all interference-fitted; a heat insulation section is provided between the intake sealing section and the tail sealing section, so that there is a heat insulation layer between the intake port and the intake connection pipe; the guide connection structure is disposed on the heat insulation section, and the guide connection structure is configured such that when the intake connection pipe is assembled into the intake port, the end of the second connection part near the inner diameter of the cylinder does not contact the connection between the heat insulation section and the tail sealing section. Therefore, the guiding connection structure provided by this utility model, by setting a heat insulation section between the intake sealing section and the tail sealing section, creates a heat insulation layer between the intake port and the intake connecting pipe, which increases the volume of gas that can be contained and improves the heat insulation effect. Furthermore, by setting a guiding connection structure on the heat insulation section, during the assembly of the intake connecting pipe, the end of the second connecting part near the inner diameter of the cylinder can be guided to avoid contact with the connection between the heat insulation section and the tail sealing section. This helps ensure that the second connecting part of the intake connecting pipe can be accurately and smoothly inserted into the tail sealing section inside the intake port, thereby avoiding situations where the intake connecting pipe deforms or the pressure is sufficient but the assembly is not complete. This improves the assembly accuracy and reliability of the intake connecting pipe, thus ensuring the performance of the compressor.
[0050] Since the compressor provided by this utility model and the guide connection structure provided by this utility model belong to the same inventive concept, the compressor provided by this utility model has at least all the advantages of the guide connection structure provided by this utility model. For the advantages of the compressor provided by this utility model, please refer to the relevant description of the beneficial effects of the guide connection structure provided by this utility model, which will not be repeated here.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.
Claims
1. A guiding connection structure, characterized in that, This is used for connecting the cylinder of a compressor to the intake pipe; an intake sealing section is provided at one end of the intake port of the cylinder near the orifice, and a tail sealing section is provided at one end of the intake port of the cylinder near the inner diameter of the cylinder; the intake sealing section and the first connecting part of the intake pipe, as well as the tail sealing section and the second connecting part of the intake pipe, are all interference fit connections; a heat insulation section is provided between the intake sealing section and the tail sealing section so that there is a heat insulation layer between the intake port and the intake pipe; The guide connection structure is disposed on the heat insulation section. The guide connection structure is configured such that when the air intake connection pipe is assembled into the air intake hole, the end of the second connection portion near the inner diameter of the cylinder does not touch the connection between the heat insulation section and the tail sealing section.
2. The guide connection structure as described in claim 1, characterized in that, The radius of the end face of the heat insulation section near the intake sealing section is greater than the radius of the end face of the heat insulation section near the tail sealing section. The radius of the end face of the heat insulation section near the tail sealing section is slightly greater than or equal to the radius of the end face of the tail sealing section near the heat insulation section. The difference between the radius of the end face of the heat insulation section near the intake sealing section and the radius of the end face of the heat insulation section near the tail sealing section is not less than the difference between the radius of the end face of the intake sealing section near the heat insulation section and the radius of the end face of the tail sealing section near the heat insulation section.
3. The guide connection structure as described in claim 2, characterized in that, The guide connection structure includes a sloped transition sidewall formed between the end face of the heat insulation section near the air intake sealing section and the end face of the tail sealing section near the heat insulation section.
4. The guide connection structure as described in claim 2, characterized in that, The guide connection structure includes a curved transition sidewall formed between the end face of the heat insulation section near the air intake sealing section and the end face of the tail sealing section near the heat insulation section.
5. The guide connection structure as described in claim 2, characterized in that, The guide connection structure includes a segmented transition sidewall formed between the end face of the heat insulation section near the air intake sealing section and the end face of the tail sealing section near the heat insulation section.
6. The guide connection structure as described in claim 5, characterized in that, The segmented transition sidewall includes a sidewall formed by connecting a straight segment and an arc segment. The straight segment is connected to the intake sealing segment, and the arc segment is connected to the tail sealing segment.
7. The guide connection structure as described in claim 2, characterized in that, The processing angle range of the guide connection structure includes 180 degrees to 360 degrees.
8. The guide connection structure as described in claim 1, characterized in that, The depth of the air inlet is greater than the sum of the lengths of the first connecting part and the second connecting part.
9. The guide connection structure as described in claim 1, characterized in that, The air intake connecting pipe is concentrically arranged with the air intake port.
10. A compressor, characterized in that, The device includes a cylinder and an intake connecting pipe connected to the cylinder. An intake sealing section is provided at one end of the intake port of the cylinder near the port opening, and a tail sealing section is provided at one end of the intake port of the cylinder near the inner diameter of the cylinder. The intake sealing section and the first connecting portion of the intake connecting pipe, as well as the tail sealing section and the second connecting portion of the intake connecting pipe, are both interference-fitted. A heat insulation section is provided between the intake sealing section and the tail sealing section to provide a heat insulation layer between the intake port and the intake connecting pipe. The heat insulation section is provided with a guide connecting structure as described in any one of claims 1 to 9.