Air inlet structure, compressor and heat exchange system

Abstract

The utility model discloses an air inlet structure, a compressor and a heat exchange system, and relates to the technical field of compressors, the air inlet structure is used for the compressor, the air inlet structure comprises an air inlet pipe, a welding connecting part and a filtering assembly, and the air inlet pipe is provided with a connecting end used for being communicated with an air cylinder of the compressor; the welding connecting part is used for being connected to the air inlet pipe and a shell of the compressor in a welding mode, and the air inlet pipe is provided with a communicating pipe section correspondingly located between the welding connecting part and the connecting end; the filtering assembly is arranged in the communicating pipe section; according to the technical scheme provided by the utility model, the technical effect of preventing sundries generated by welding from entering the compressor can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and particularly relates to an air inlet structure, a compressor and a heat exchange system. Background Art

[0002] In an air-conditioning system, a rolling piston compressor mainly consists of a pump body, a housing, a liquid reservoir, a motor, etc. The liquid reservoir has functions such as liquid storage, oil-gas separation, and oil return. These functions can be completely replaced by an oil separator and a gas separator in the air-conditioning system, so that the liquid reservoir on the compressor can be replaced by an air inlet pipe. Summary of the Utility Model

[0003] When the air inlet structure of the utility model is welded and connected to the housing of the compressor, sundries (oxide scales) will be generated inside the air inlet structure. How to provide an air inlet structure that prevents the sundries generated by welding from entering the interior of the compressor is a further problem faced by this design.

[0004] The main purpose of the utility model is to propose an air inlet structure, a compressor and a heat exchange system, aiming to improve the problem that the sundries generated by welding enter the interior of the compressor.

[0005] To achieve the above purpose, the air inlet structure proposed by the utility model is used for a compressor, and the air inlet structure includes:

[0006] An air inlet pipe having a connection end for communicating with a cylinder of the compressor;

[0007] A welding connection part for welding and connecting the air inlet pipe and the housing of the compressor. The air inlet pipe has a communicating pipe section corresponding to the position between the welding connection part and the connection end; and,

[0008] A filtering component provided in the communicating pipe section.

[0009] In an embodiment, the air inlet pipe includes a plurality of sequentially connected pipe sections, and the plurality of pipe sections include a first pipe section, a second pipe section and a third pipe section that are sequentially connected;

[0010] The connection end is formed on the third pipe section;

[0011] The welding connection part is connected to the second pipe section, and the communicating pipe section includes the third pipe section and a part of the second pipe section.

[0012] In an embodiment, the filtering component is provided in the second pipe section.

[0013] In one embodiment, along the first direction, the length of the second pipeline section is L1, and the distance between the filter assembly and the end surface of the second pipeline section facing away from the first pipeline section is L2, wherein 0.2*L1<L2<0.5*L1.

[0014] In one embodiment, the filter assembly is disposed in the third pipeline section.

[0015] In one embodiment, the third pipeline section includes a main pipeline section extending along a first direction, a first branch pipeline section, and a second branch pipeline section, one end of the first branch pipeline section extends along a second direction and is connected to a side portion of the main pipeline section, one end of the second branch pipeline section extends along the first direction to connect to an end portion of the main pipeline section, and the other end extends along the second direction, wherein the first direction and the second direction are two directions perpendicular to each other in a plane;

[0016] The connecting end includes the other end of the first branch pipeline and the other end of the second branch pipeline;

[0017] The filter assembly is arranged in the third pipeline section and is located between the pipe opening of the third pipeline section away from the first branch pipeline section and the first branch pipeline section.

[0018] In one embodiment, the material of the first pipe section includes brass; and / or,

[0019] The material of the second pipeline section includes steel; and / or,

[0020] The material of the third pipeline section includes brass.

[0021] In one embodiment, the welding connection portion includes a collar, the collar is sleeved on the intake pipe, and an outer side wall of the collar is used for welding connection to the shell of the compressor.

[0022] In one embodiment, the air inlet pipe has a connecting pipe section arranged corresponding to the welded connection, wherein:

[0023] The material of the connecting pipe section includes steel; and / or,

[0024] The material of the welded connection portion includes steel.

[0025] In one embodiment, the filter assembly comprises a filter screen.

[0026] The utility model also provides a compressor, which comprises the above-mentioned air intake structure.

[0027] In one embodiment, the compressor comprises a refrigeration compressor.

[0028] The present utility model also provides a heat exchange system, which includes the above-mentioned compressor.

[0029] In the technical solution of the present utility model, the air intake structure includes an intake pipe, and the connecting end of the intake pipe can be communicated with the cylinder of the compressor, and the refrigerant gas is introduced into the cylinder of the compressor through the intake pipe; the intake pipe is also welded to the housing of the compressor through a welded connection part, and the connection between the air intake structure and the compressor is highly stable. At the same time, a filtering component is arranged in the connecting pipe section between the welded connection part and the connecting end, which can prevent sundries generated by the welding connection between the welded connection part and the housing of the compressor from entering the interior of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 It is a schematic structural diagram of an embodiment of the compressor provided by the present utility model;

[0032] Figure 2 It is a schematic structural diagram of another embodiment of the compressor provided by the present utility model.

[0033] Explanation of the reference numerals in the drawings:

[0034] 1000, compressor;

[0035] 100, air intake structure; 1, first pipe section; 2, second pipe section; 21, welded connection part; 3, third pipe section; 31, main pipe section; 32, first branch pipe section; 33, second branch pipe section; 4, filtering component;

[0036] 200, housing;

[0037] 300, motor; 310, stator; 320, rotor;

[0038] 400, pump body; 410, cylinder; 420, partition plate; 430, crankshaft.

[0039] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0041] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0043] In an air-conditioning system, a rolling piston compressor mainly consists of a pump body, a housing, a liquid receiver, a motor, etc. Among them, the liquid receiver has functions such as liquid storage, oil-gas separation, and oil return. These functions can be completely replaced by an oil separator and a gas separator in the air-conditioning system, so that the liquid receiver on the compressor can be replaced by an intake pipe.

[0044] When the present utility model welds and connects the intake structure to the housing of the compressor, sundries (oxide scales) will be generated inside the intake structure. How to provide an intake structure that can prevent the sundries generated by welding from entering the interior of the compressor is a further problem faced by this design.

[0045] The present utility model proposes an intake structure that can prevent the sundries generated by welding from entering the interior of the compressor. Figure 1 It is a schematic structural diagram of an embodiment of the compressor provided by the present utility model; Figure 2 It is a schematic structural diagram of another embodiment of the compressor provided by the present utility model.

[0046] It should be noted that the type of the compressor 1000 is not specifically limited in the present utility model. The compressor 1000 can be a rotary compressor, a piston compressor, a screw compressor, a centrifugal compressor, a scroll compressor, etc. In the drawings, the compressor 1000 is described as a rotary compressor.

[0047] Please refer to Figures 1 to 2 , the rotary compressor 1000 includes a housing 200, a motor 300 and a pump body 400 disposed in the housing 200. The motor 300 and the pump body 400 are arranged along a first direction. The motor 300 includes a stator 310 and a rotor 320. The pump body 400 includes a cylinder and a crankshaft 430. One end of the crankshaft 430 penetrates through the cylinder, and the other end is connected to the rotor 320. The motor 300 drives the crankshaft 430 to rotate to compress the refrigerant gas introduced into the cylinder.

[0048] Please refer to Figures 1 to 2 , in an embodiment of the present utility model, the intake structure is used for the compressor 1000. The intake structure includes an intake pipe, a welded connection portion 21 and a filter assembly 4. The intake pipe has a connection end for communicating with the cylinder 410 of the compressor 1000. The welded connection portion 21 is used for welding and connecting the intake pipe and the housing 200 of the compressor 1000. The intake pipe has a communication pipe section corresponding to the position between the welded connection portion 21 and the connection end. The filter assembly 4 is disposed in the communication pipe section.

[0049] In the technical solution of the present utility model, the intake structure includes an intake pipe, which can be communicated with the cylinder 410 of the compressor 1000 through the connection end of the intake pipe. The refrigerant gas is introduced into the cylinder 410 of the compressor 1000 through the intake pipe. The intake pipe is welded and connected to the housing 200 of the compressor 1000 through the welded connection portion 21. The intake structure has high connection stability with the compressor 1000. At the same time, the filter assembly 4 is arranged in the communication pipe section between the welded connection portion 21 and the connection end, which can prevent the sundries generated by the welding connection between the welded connection portion 21 and the housing 200 of the compressor 1000 from entering the interior of the compressor 1000.

[0050] In an embodiment of the utility model, the air intake pipe includes a plurality of pipeline sections connected in sequence, and the plurality of pipeline sections include a first pipeline section 1, a second pipeline section 2, and a third pipeline section 3 connected in sequence; the connection end is formed on the third pipeline section 3; the welding connection portion 21 is connected to the second pipeline section 2, and the connecting pipeline section includes the third pipeline section 3 and part of the second pipeline section 2. The air intake structure includes the first pipeline section 1, the second pipeline section 2, and the third pipeline section 3 connected in sequence, which facilitates the connection between the air intake structure and the refrigerant gas supply structure (such as an evaporator), and also facilitates the connection between the air intake structure and the cylinder 410 of the compressor 1000, and can also improve the versatility of the air intake structure, and the welding connection portion 21 is connected to the second pipeline section 2, which can further improve the stability of the connection between the air intake structure and the compressor 1000, and is conducive to reducing the overall noise of the compressor 1000. It can be understood that the filter assembly 4 can be arranged in the second pipeline section 2, in the third pipeline section 3, or in both the second pipeline section 2 and the third pipeline section 3.

[0051] In the embodiments of the present invention, please refer to Figure 1 The filter assembly 4 is arranged in the second pipeline section 2. The filter assembly 4 is arranged in the second pipeline section 2 to prevent the debris generated by welding from entering the compressor 1000. The structure is simple, the effect of intercepting debris is good, and the influence on the flow of the refrigerant gas is small.

[0052] In an embodiment of the utility model, along the first direction, the length of the second pipeline section 2 is L1, and the distance between the filter assembly 4 and the end face of the second pipeline section 2 facing away from the first pipeline section 1 is L2, wherein 0.2*L1<L2<0.5*L1. The filter assembly 4 is arranged in the second pipeline section 2, and the position in the second pipeline section 2 is set in the above range, which is conducive to reducing the influence on the flow of the refrigerant gas. It can be understood that the length of the second pipeline section 2 is the distance between the two end faces of the second pipeline section 2.

[0053] In the embodiments of the present invention, please refer to Figure 2 , the filter assembly 4 is arranged in the third pipeline section 3. The filter assembly 4 is arranged in the third pipeline section 3, so as to prevent the sundries generated by welding from entering the compressor 1000.

[0054] It should be noted that the present utility model does not specifically limit the number of cylinders 410 of the compressor 1000. The compressor 1000 can be a single-cylinder compressor, a double-cylinder compressor, a triple-cylinder compressor, a four-cylinder compressor, etc., and a partition 420 can be provided between the cylinders 410. In an embodiment of the present utility model, the third pipe section 3 includes a main pipe section 31 extending in a first direction, a first branch pipe section 32, and a second branch pipe section 33. One end of the first branch pipe section 32 extends in a second direction and is connected to the side of the main pipe section 31. One end of the second branch pipe section 33 extends in the first direction to connect to the end of the main pipe section 31, and the other end extends in the second direction. Among them, the first direction and the second direction are two mutually perpendicular directions in a plane; the connection end includes the other end of the first branch pipe and the other end of the second branch pipe; the filtering component 4 is arranged in the third pipe section 3 and is located between the pipe orifice of the third pipe section 3 far from the first branch pipe section 32 and the first branch pipe section 32. The third pipe section 3 includes a main pipe section 31, a first branch pipe section 32, and a second branch pipe section 33, and can be used for a double-cylinder compressor. Through the first branch pipe section 32 and the second branch pipe section 33, they can be respectively communicated with the two cylinders 410 of the double-cylinder compressor. The first branch pipe section 32 can be communicated with the cylinder 410 located above in the first direction of the double-cylinder compressor, and the second branch pipe can be communicated with the cylinder 410 located below in the first direction of the double-cylinder compressor; the filtering component 4 is arranged in the third pipe section 3 and is located between the pipe orifice of the third pipe section 3 far from the first branch pipe section 32 and the first branch pipe section 32, and can intercept the sundries before they enter the branch pipe section. The structure is simple, the effect of intercepting sundries is good, and the influence on the flow of the refrigerant gas is also small.

[0055] It should be noted that the present utility model does not specifically limit the material of the first pipe section 1. The material of the first pipe section 1 can be brass, steel, aluminum alloy, etc.; in an embodiment of the present utility model, the material of the first pipe section 1 includes brass. The first pipe section 1 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the connection with the refrigerant gas supply structure (such as an evaporator) and is also beneficial to ensuring the performance of the intake structure.

[0056] It should be noted that the present utility model does not specifically limit the material of the second pipe section 2. The material of the second pipe section 2 can be brass, steel, aluminum alloy, etc.; in the embodiment of the present utility model, the material of the second pipe section 2 includes steel. The second pipe section 2 made of steel is convenient for welding connection with the housing 200 of the compressor 1000 to improve the connection stability between the compressor 1000 and the intake structure, can reduce the overall machine noise of the compressor 1000, and the cost of the second pipe section 2 made of steel is relatively low. While ensuring the performance of the intake structure, the production cost of the intake structure can be reduced.

[0057] It should be noted that the present utility model does not specifically limit the material of the third pipe section 3. The material of the third pipe section 3 can be brass, steel, aluminum alloy, etc.; in the embodiment of the present utility model, the material of the third pipe section 3 includes brass. The third pipe section 3 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the connection between the intake structure and the cylinder 410 of the compressor 1000, and is also beneficial to ensuring the performance of the intake structure.

[0058] It should be noted that the present utility model does not specifically limit the structure of the welding connection part 21. The welding connection part 21 can be a collar, a welding block, a connecting frame, etc.; in the embodiment of the present utility model, the welding connection part 21 includes a collar, the collar is sleeved on the intake pipe, and the outer side wall of the collar is used for welding connection to the housing 200 of the compressor 1000. Using the collar to weld and connect the intake pipe and the housing 200 of the compressor 1000 has a simple structure and can improve the connection stability between the intake structure and the compressor 1000, and reduce the overall machine noise of the compressor 1000.

[0059] In the embodiment of the present utility model, the intake pipe has a connecting pipe section corresponding to the welding connection part 21, wherein: the material of the connecting pipe section includes steel. The connecting pipe section made of steel is convenient for welding connection with the housing 200 of the compressor 1000 to improve the connection stability between the compressor 1000 and the intake structure, can reduce the overall machine noise of the compressor 1000, and the cost of the connecting pipe section made of steel is relatively low. While ensuring the performance of the intake structure, the production cost of the intake structure can be reduced.

[0060] In the embodiment of the present utility model, the intake pipe has a connecting pipe section corresponding to the welding connection part 21, wherein: the material of the welding connection part 21 includes steel. Using the welding connection part 21 made of steel is convenient for welding and connecting the housing 200 of the compressor 1000 and the intake pipe.

[0061] It should be noted that the structure of the filtering component 4 of the present utility model is not specifically limited. The filtering component 4 can be a filter screen, a filter plate, or a combination of a filter plate and a filter screen, etc. In the embodiment of the present utility model, the filtering component 4 includes a filter screen. Using a filter screen to intercept sundries has a simple structure, good effect of intercepting sundries, and little influence on the flow of refrigerant gas.

[0062] The present utility model also provides a compressor 1000, which includes an air intake structure. The specific structure of the air intake structure refers to the above-mentioned embodiment. Since the compressor 1000 adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated herein one by one.

[0063] In the embodiment of the present utility model, the compressor 1000 includes a refrigeration compressor. The refrigeration compressor can be used in a heat exchange system.

[0064] The present utility model also provides a heat exchange system, which includes a compressor 1000. The specific structure of the compressor 1000 refers to the above-mentioned embodiment. Since the compressor 1000 adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated herein one by one.

[0065] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the specification and drawings of the present utility model under the technical concept of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. An air intake structure for a compressor, characterized in that: The air intake structure comprises: an air intake pipe having a connection end for communicating with a cylinder of the compressor; a welding connection portion, used for welding connection to the intake pipe and the housing of the compressor, the intake pipe having a connecting pipe section correspondingly located between the welding connection portion and the connecting end; and The filter assembly is arranged in the connecting pipe section.

2. The air intake structure according to claim 1, characterized in that: The air intake pipe comprises a plurality of pipeline sections connected in sequence, wherein the plurality of pipeline sections comprises a first pipeline section, a second pipeline section and a third pipeline section connected in sequence; The connecting end is formed on the third pipeline section; The welding connection portion is connected to the second pipeline section, and the connecting pipeline section includes the third pipeline section and a portion of the second pipeline section.

3. The air intake structure according to claim 2, characterized in that: The filter assembly is arranged in the second pipeline section.

4. The air intake structure according to claim 3, characterized in that: Along the first direction, the length of the second pipeline section is L1, and the distance between the filter assembly and the end surface of the second pipeline section facing away from the first pipeline section is L2, wherein 0.2*L1<L2<0.5*L1.

5. The air intake structure according to claim 2, characterized in that: The filter assembly is arranged in the third pipeline section.

6. The air intake structure according to claim 5, characterized in that: The third pipeline section includes a main pipeline section extending along a first direction, a first branch pipeline section, and a second branch pipeline section, one end of the first branch pipeline section extends along a second direction and is connected to a side portion of the main pipeline section, one end of the second branch pipeline section extends along the first direction to connect to an end portion of the main pipeline section, and the other end extends along the second direction, wherein the first direction and the second direction are two directions perpendicular to each other in a plane; The connecting end includes the other end of the first branch pipeline and the other end of the second branch pipeline; The filter assembly is arranged in the third pipeline section and is located between the pipe opening of the third pipeline section away from the first branch pipeline section and the first branch pipeline section.

7. The air intake structure according to claim 6, characterized in that: The material of the first pipe section includes brass; and / or, The material of the second pipeline section includes steel; and / or, The material of the third pipeline section includes brass.

8. The air intake structure according to claim 1, characterized in that: The welding connection portion comprises a collar, which is sleeved on the air inlet pipe, and the outer side wall of the collar is used for welding connection to the shell of the compressor.

9. The air intake structure according to claim 1, characterized in that: The air intake pipe has a connecting pipe section arranged corresponding to the welding connection, wherein: The material of the connecting pipe section includes steel; and / or, The material of the welded connection portion includes steel.

10. The air intake structure according to claim 1, characterized in that: The filter assembly includes a filter screen.

11. A compressor, characterized in that: The compressor comprises the air intake structure according to any one of claims 1 to 10.

12. The compressor according to claim 11, characterized in that The compressor comprises a refrigeration compressor.

13. A heat exchange system, characterized in that: The heat exchange system comprises the compressor according to claim 11 or 12.

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