Compressor air suction structure, compressor and vehicle

Abstract

The invention relates to the technical field of compressors, in particular to a compressor air suction structure, a compressor comprising the compressor air suction structure and a vehicle comprising the compressor. The compressor air suction structure comprises a pump body and a liquid storage cavity formed above the pump body, an inner cavity is formed in the pump body, an installation face used for installing the bottom of the liquid storage cavity is arranged outside the pump body, an air suction channel is formed in the pump body, one end of the air suction channel penetrates through the installation face, the other end of the air suction channel communicates with the inner cavity, and an air outlet hole is formed in the bottom of the liquid storage cavity. An air outlet pipe is arranged in the liquid storage cavity and is a straight pipe, the lower end of the air outlet pipe penetrates through the air outlet hole and is inserted into the end, close to the mounting face, of the air suction channel, and the lower end face of the air outlet hole is in sealing fit with the mounting face. And suction leakage can be avoided. The air outlet pipe is directly inserted into the air suction channel through a straight pipe, the structure is simple, realizability is high, liquid impact damage can be avoided, fluid flow path loss is reduced, and the performance and efficiency of the compressor are improved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more particularly to a compressor intake structure, a compressor including the compressor intake structure, and a vehicle including the compressor. Background Technology

[0002] Existing rotary compressors typically use an iron casing, with the receiver as a separate component. The receiver's outlet pipe is inserted into the compressor casing and welded to it, forming the suction structure. The receiver then delivers filtered and separated gas to the pump inside the compressor casing. With increasing demands for compressor integration, a design integrating the existing separate receiver with the compressor casing has been considered. However, because the compressor casing operates at high pressure while the receiver operates at low pressure, integrating them could lead to suction leakage in the connecting suction channel. Summary of the Invention

[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a compressor suction structure that can avoid suction leakage.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention provides a compressor suction structure, including a pump body and a liquid storage chamber located above the pump body. The pump body has an inner cavity inside and a mounting surface outside the pump body for mounting the bottom of the liquid storage chamber. The pump body has a suction channel, one end of which passes through the mounting surface and the other end of which connects to the inner cavity. The bottom of the liquid storage chamber has an air outlet, and an air outlet pipe is provided inside the liquid storage chamber. The air outlet pipe is a straight pipe, and its lower end passes through the air outlet and is inserted into the end of the suction channel near the mounting surface. The lower end face of the air outlet is sealed to the mounting surface.

[0006] Preferably, the bottom of the liquid storage cavity and the mounting surface are sealed together.

[0007] Preferably, the intake channel includes a first channel and a second channel connected at an angle, the end of the first channel away from the second channel passes through the mounting surface, the end of the second channel away from the first channel is connected to the inner cavity, and the lower end of the exhaust pipe is connected to the first channel.

[0008] Preferably, the axis of the first channel is parallel to the axis of the pump body, and the axis of the second channel is perpendicular to the axis of the first channel.

[0009] Preferably, the air outlet pipe is connected to the end of the air outlet or air intake channel near the mounting surface by a threaded connection or by an interference fit.

[0010] Preferably, a limiting part is provided on the outer peripheral surface of the vent pipe, the limiting part is located in the liquid storage cavity, and the lower end face of the limiting part abuts against the upper end face of the vent hole.

[0011] Preferably, a sealing element is provided between the lower end face of the limiting part and the upper end face of the air outlet.

[0012] Preferably, the pump body includes a cylinder body and a cylinder head that form an inner cavity, and a protruding connecting lug is provided on the outer peripheral side of the cylinder body and / or the cylinder head, with the upper end face of the connecting lug being a mounting surface.

[0013] The present invention also provides a compressor, including the compressor suction structure as described above, and further including an internally hollow housing and a partition disposed inside the housing. The partition divides the internal space of the housing into a high-pressure chamber and a low-pressure chamber. A pump body and a motor are installed in the high-pressure chamber, and the low-pressure chamber is a liquid storage chamber. The motor and the liquid storage chamber are located side by side above the pump body.

[0014] The present invention also provides a vehicle including the compressor described above.

[0015] Compared with the prior art, the present invention has significant progress:

[0016] The compressor suction structure of this invention places the liquid storage chamber above the pump body. The outlet pipe inside the liquid storage chamber is a straight pipe that passes through the outlet hole at the bottom of the liquid storage chamber and is directly inserted into the suction channel on the pump body. The lower end face of the outlet hole is sealed to the mounting surface, thus ensuring the sealing at the connection between the liquid storage chamber and the pump body cavity and preventing suction leakage due to pressure difference. Furthermore, the method of using a straight pipe directly inserted into the suction channel has the advantages of simple structure and high feasibility. On the other hand, the straight pipe prevents liquid in the liquid storage chamber from directly entering the pump body cavity and causing liquid hammer damage. Simultaneously, the direct insertion of the straight pipe into the suction channel reduces fluid flow path losses, which is beneficial to improving the performance and efficiency of the compressor. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the compressor suction structure of the present invention.

[0018] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 3 This is a schematic diagram of the air outlet pipe in the compressor intake structure of an embodiment of the present invention.

[0020] Figure 4 yes Figure 1 The diagram shows the structure of the upper cylinder head in the compressor's intake structure.

[0021] Figure 5 yesFigure 1 The diagram shows the structure of the cylinder in the compressor's intake structure.

[0022] Figure 6 This is a cross-sectional schematic diagram of another embodiment of the compressor suction structure of Embodiment 2 of the present invention.

[0023] Figure 7 yes Figure 6 The diagram shows the structure of the upper cylinder head in the compressor's intake structure.

[0024] Figure 8 yes Figure 6 The diagram shows the upper end face structure of the cylinder in the compressor's intake structure.

[0025] Figure 9 yes Figure 6 The diagram shows the lower end face structure of the cylinder in the compressor's intake structure.

[0026] The reference numerals in the attached figures are explained as follows:

[0027] 1. Pump body; 10. Inner cavity; 11. Mounting surface; 12. Suction channel; 121. First channel; 122. Second channel; 13. Cylinder body; 131. Sliding vane; 14. Upper cylinder head; 15. Lower cylinder head; 16. Connecting lug; 16a. First connecting lug; 16b. Second connecting lug; 2. Liquid storage chamber; 20. Air outlet; 3. Air outlet pipe; 30. Limiting part; 31. First pipe section; 32. Second pipe section; 4. Seal; 5. Housing; 51. High pressure chamber; 6. Separator; 7. Motor; 8. Crankshaft. Detailed Implementation

[0028] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0029] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] like Figures 1 to 9 The image shows an embodiment of the compressor intake structure provided by the present invention.

[0033] See Figure 1 and Figure 6 The compressor suction structure of this embodiment includes a pump body 1 and a liquid storage chamber 2, with the liquid storage chamber 2 located above the pump body 1. The liquid storage chamber 2 is a cavity structure with an air inlet and an air outlet 20. The liquid storage chamber 2 is integrated above the pump body 1, replacing the separately installed liquid storage component in the prior art to achieve the function of a liquid storage device. The pump body 1 has an inner cavity 10 inside and a mounting surface 11 on the outside, facing upwards. The mounting surface 11 is used to mount the bottom of the liquid storage chamber 2, thus mounting the liquid storage chamber 2 above the pump body 1. The pump body 1 has a suction channel 12, one end of which passes through the mounting surface 11, and the other end of which connects to the inner cavity 10. A vent 20 is provided at the bottom of the liquid storage chamber 2, extending through the bottom of the liquid storage chamber 2. A vent pipe 3 is provided inside the liquid storage chamber 2. The vent pipe 3 is a straight pipe, vertically arranged, with its lower end passing through the vent 20 and inserted into the end of the suction channel 12 near the mounting surface 11. Thus, the gas in the liquid storage chamber 2 can enter the inner cavity 10 of the pump body 1 through the vent pipe 3 and the suction channel 12. The lower end face of the vent 20 is sealed to the mounting surface 11, ensuring the sealing at the connection between the liquid storage chamber 2 and the inner cavity 10 of the pump body 1, and preventing suction leakage due to pressure difference between the two. The outlet pipe 3 is a straight pipe that is directly inserted into the suction channel 12 on the pump body 1. On the one hand, it has the advantages of simple structure and high feasibility. On the other hand, the straight pipe can prevent the liquid in the liquid storage chamber 2 from directly entering the inner cavity 10 of the pump body 1 and causing liquid hammer damage to the pump body 1. At the same time, the direct insertion of the straight pipe into the suction channel 12 reduces the flow path loss of the fluid and can improve the performance and efficiency of the compressor.

[0034] In this embodiment, preferably, the bottom of the liquid storage cavity 2 and the mounting surface 11 are sealed together. Since the vent 20 penetrates the bottom of the liquid storage cavity 2, the lower end face of the vent 20 and the mounting surface 11 are sealed together.

[0035] In this embodiment, the sealing fit between the lower end face of the vent 20 and the mounting surface 11 is not limited, and any existing form that can achieve sealing between two opposing surfaces can be used.

[0036] In this embodiment, preferably, the lower end of the air outlet pipe 3 and the end of the air intake channel 12 near the mounting surface 11 can be connected by a threaded fit or an interference fit to achieve the installation and fixation of the air outlet pipe 3 and the air intake channel 12, and also to achieve a sealed fit between the air outlet pipe 3 and the air intake channel 12. It should be noted that the installation form between the air outlet pipe 3 and the air intake channel 12 is not limited to this; other forms in which the lower end of the air outlet pipe 3 is inserted into the air intake channel 12 can also be used.

[0037] In this embodiment, preferably, the lower end of the vent pipe 3 and the vent hole 20 can be connected by a threaded connection or an interference fit to achieve the installation and fixation of the vent pipe 3 and the vent hole 20, and also to achieve a sealing fit between the vent pipe 3 and the vent hole 20. It should be noted that the installation and fixation method between the vent pipe 3 and the vent hole 20 is not limited to this, and other methods that can fix the lower end of the vent pipe 3 and the vent hole 20 can also be used.

[0038] See Figure 2 and Figure 3 In this embodiment, preferably, a limiting part 30 is provided on the outer peripheral surface of the vent pipe 3. The limiting part 30 is located inside the liquid storage cavity 2, and the lower end face of the limiting part 30 abuts against the upper end face of the vent hole 20. This limits the length of the lower end of the vent pipe 3 extending through the vent hole 20 and also enables a sealing fit between the vent pipe 3 and the vent hole 20. Preferably, a sealing element 4 is provided between the lower end face of the limiting part 30 and the upper end face of the vent hole 20. The sealing element 4 can be a sealing gasket or an O-ring. The lower end of the vent pipe 3 extends through the vent hole 20 and is connected and fixed to the vent hole 20, so that the lower end face of the limiting part 30 presses the sealing element 4 against the upper end face of the vent hole 20, thereby achieving a sealing fit between the vent pipe 3 and the vent hole 20. In this embodiment, the air outlet pipe 3 has a first pipe section 31 located above the limiting part 30 and a second pipe section 32 located below the limiting part 30. Both the first pipe section 31 and the limiting part 30 are located in the liquid storage chamber 2. The second pipe section 32 passes through the air outlet 20 and is inserted into the end of the air intake channel 12 near the mounting surface 11. The axial length of the second pipe section 32 is less than the axial length of the first pipe section 31. The outer diameter of the second pipe section 32 is adapted to the inner diameter of the air outlet 20.

[0039] See Figure 1 and Figure 6In this embodiment, preferably, the intake channel 12 includes a first channel 121 and a second channel 122 connected at an angle. The end of the first channel 121 away from the second channel 122 passes through the mounting surface 11 on the pump body 1, and the end of the second channel 122 away from the first channel 121 connects to the inner cavity 10 of the pump body 1. The lower end of the exhaust pipe 3 is inserted into the first channel 121. Preferably, the axis of the first channel 121 is parallel to the axis of the pump body 1, and the axis of the second channel 122 is perpendicular to the axis of the first channel 121, thereby making the intake channel 12 L-shaped.

[0040] Typically, the pump body 1 includes a cylinder body 13 and a cylinder head that form an inner cavity 10. The interior of the cylinder body 13 is axially continuous. The cylinder head includes an upper cylinder head 14 and a lower cylinder head 15 respectively located at both ends of the cylinder body 13 in the axial direction. The upper cylinder head 14 and the lower cylinder head 15 seal the internal space of the cylinder body 13, forming the inner cavity 10 of the pump body 1.

[0041] In this embodiment, a protruding connecting lug 16 is provided on the outer peripheral side of the cylinder body 13 and / or cylinder head. The upper end surface of the connecting lug 16 is a mounting surface 11, which is used to mount the bottom of the liquid storage chamber 2.

[0042] See Figure 1 , Figure 4 and Figure 5 In one embodiment, the cylinder body 13 and the upper cylinder head 14 are provided with protruding connecting ears 16 on their outer peripheral sides, including a first connecting ear 16a protruding on the outer peripheral side of the upper cylinder head 14 and a second connecting ear 16b protruding on the outer peripheral side of the cylinder body 13. The second connecting ear 16b is positioned below the first connecting ear 16a and fits against the first connecting ear 16a, so the upper end face of the first connecting ear 16a serves as the mounting surface 11 for mounting the bottom of the liquid storage chamber 2. The first channel 121 of the suction channel 12 is provided on the first connecting ear 16a and extends vertically through the upper and lower end faces of the first connecting ear 16a, and the lower end of the exhaust pipe 3 is inserted into the first channel 121. The second channel 122 of the intake channel 12 is provided on the cylinder body 13. The second channel 122 extends radially from the lower end of the first channel 121 on the second connecting ear 16b and the first connecting ear 16a into the internal space of the cylinder body 13. The upper end of the second channel 122 penetrates the upper end face of the cylinder body 13, so that the end of the second channel 122 near the first channel 121 is connected to the lower end of the first channel 121, and the end of the second channel 122 away from the first channel 121 is connected to the inner cavity 10 of the pump body 1. Figure 5As shown, a protruding vane portion 131 is provided on the outer peripheral side of the cylinder body 13. The vane portion 131 is used to set the vane of the pump body 1. Preferably, the second connecting ear 16b protrudes from the outer peripheral side of the vane portion 131 and is provided corresponding to the lower end of the first channel 121 on the first connecting ear 16a. The second channel 122 extends radially from the position of the second connecting ear 16b corresponding to the lower end of the first channel 121 to the internal space of the cylinder body 13.

[0043] See Figure 6 , Figure 7 , Figure 8 and Figure 9 In another embodiment, a protruding connecting lug 16 is provided on the outer peripheral side of the cylinder body 13. The connecting lug 16 protrudes relative to the outer peripheral side of the upper cylinder cover 14, and the upper end surface of the connecting lug 16 serves as the mounting surface 11 for mounting the bottom of the liquid storage chamber 2. A blind hole is formed on the upper end surface of the connecting lug 16 to form a first channel 121 of the air intake channel 12, and the lower end of the air outlet pipe 3 is inserted into the first channel 121. The second channel 122 of the air intake channel 12 is connected to the lower end of the blind hole and extends radially from the lower end of the blind hole into the internal space of the cylinder body 13, thereby allowing the end of the second channel 122 away from the first channel 121 to communicate with the inner cavity 10 of the pump body 1. Figure 8 and Figure 9 As shown, a protruding sliding vane portion 131 is provided on the outer peripheral side of the cylinder body 13. The sliding vane portion 131 is used to set the sliding vane of the pump body 1. Preferably, the connecting ear 16 protrudes from the outer peripheral side of the sliding vane portion 131. The blind hole of the first channel 121 of the intake channel 12 is opened on the upper end surface of the connecting ear 16. The second channel 122 of the intake channel 12 is provided in the sliding vane portion 131 and connects the lower end of the blind hole with the internal space of the cylinder body 13.

[0044] In other embodiments, a protruding connecting lug 16 may be provided on the outer peripheral side of the lower cylinder head 15 for mounting the bottom of the liquid storage chamber 2 and connecting the air outlet pipe 3.

[0045] In this embodiment, the pump body 1 can be a single-cylinder or a double-cylinder type.

[0046] Based on the compressor suction structure of the present invention, the present invention also provides a compressor, which includes any of the compressor suction structures described above.

[0047] See Figure 1 and Figure 6Preferably, the compressor in this embodiment further includes a hollow housing 5 and a partition 6 disposed inside the housing 5, which divides the internal space of the housing 5 into a high-pressure chamber 51 and a low-pressure chamber. A pump body 1 and a motor 7 are installed in the high-pressure chamber 51, and the motor 7 and the pump body 1 are connected by a crankshaft 8. The low-pressure chamber is a liquid storage chamber 2. The motor 7 and the liquid storage chamber 2 are located side-by-side above the pump body 1. This achieves a design where the liquid storage chamber 2 is integrated within the compressor housing 5.

[0048] Based on the compressor of the present invention, this embodiment of the invention also provides a vehicle, which includes any of the compressors described above as a compressor for a vehicle air conditioner. That is, the compressor of the present invention is applied to vehicle air conditioning, particularly to the air conditioning of new energy vehicles.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A compressor suction structure, characterized in that, The pump includes a pump body (1) and a liquid storage chamber (2) located above the pump body (1). The pump body (1) has an inner cavity (10) inside and an outer mounting surface (11) for mounting the bottom of the liquid storage chamber (2) outside. The pump body (1) has a suction channel (12) with one end of the suction channel (12) penetrating the mounting surface (11) and the other end connected to the inner cavity (10). The bottom of the liquid storage chamber (2) has an air outlet (20). The liquid storage chamber (2) has an air outlet pipe (3) inside. The air outlet pipe (3) is a straight pipe. The lower end of the air outlet pipe (3) passes through the air outlet (20) and is inserted into the end of the suction channel (12) near the mounting surface (11). The lower end face of the air outlet (20) is sealed to the mounting surface (11).

2. The compressor suction structure according to claim 1, characterized in that, The bottom of the liquid storage chamber (2) is sealed to the mounting surface (11).

3. The compressor suction structure according to claim 1, characterized in that, The air intake channel (12) includes a first channel (121) and a second channel (122) connected at an angle. The end of the first channel (121) away from the second channel (122) passes through the mounting surface (11), and the end of the second channel (122) away from the first channel (121) is connected to the inner cavity (10). The lower end of the air outlet pipe (3) is connected to the first channel (121).

4. The compressor suction structure according to claim 3, characterized in that, The axis of the first channel (121) is parallel to the axis of the pump body (1), and the axis of the second channel (122) is perpendicular to the axis of the first channel (121).

5. The compressor suction structure according to claim 1, characterized in that, The air outlet pipe (3) is connected to the air outlet (20) or the end of the air intake channel (12) near the mounting surface (11) by a threaded connection or by an interference fit.

6. The compressor suction structure according to claim 1, characterized in that, The outer circumferential surface of the vent pipe (3) is provided with a limiting part (30), the limiting part (30) is located in the liquid storage cavity (2), and the lower end face of the limiting part (30) abuts against the upper end face of the vent hole (20).

7. The compressor suction structure according to claim 6, characterized in that, A sealing element (4) is provided between the lower end face of the limiting part (30) and the upper end face of the air outlet (20).

8. The compressor suction structure according to claim 1, characterized in that, The pump body (1) includes a cylinder body (13) and a cylinder cover that form the inner cavity (10). The cylinder body (13) and / or the cylinder cover are provided with protruding connecting ears (16) on their outer peripheral sides. The upper end face of the connecting ears (16) is the mounting surface (11).

9. A compressor, characterized in that, The compressor suction structure includes any one of claims 1 to 8, and further includes an internally hollow housing (5) and a partition (6) disposed inside the housing (5). The partition (6) divides the internal space of the housing (5) into a high-pressure chamber (51) and a low-pressure chamber. The pump body (1) and the motor (7) are installed in the high-pressure chamber (51). The low-pressure chamber is the liquid storage chamber (2). The motor (7) and the liquid storage chamber (2) are located side by side above the pump body (1).

10. A vehicle, characterized in that, Includes the compressor as described in claim 9.

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