A pump body structure, a scroll compressor, and an air conditioner

Abstract

The present disclosure provides a pump body structure, a scroll compressor, and an air conditioner. The pump body structure includes a stationary scroll plate, a moving scroll plate, and a bracket. A compression chamber is formed between the stationary scroll plate and the moving scroll plate. There is a back pressure chamber between the moving scroll plate and the bracket. A communication channel is further provided inside the moving scroll substrate. One end of the communication channel can communicate with the compression chamber to suck gas from the compression chamber, and the other end of the communication channel can communicate to a position between the moving scroll plate and the bracket and radially outside the back pressure chamber to form an air film between the moving scroll plate and the bracket. According to the present disclosure, the reaction force formed with the bracket cancels out part of the overturning moment of the moving disk, so as to reduce the overturning force generated by the compression chamber acting on the radially outer side of the moving scroll plate and reduce the overturning moment, effectively preventing the moving scroll plate from overturning.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and particularly to a pump body structure, a scroll compressor, and an air conditioner. Background Art

[0002] Axial gas force, as one of the main disadvantages of scroll compressors, is mainly caused by the separation of the surfaces of the moving scroll disk and the stationary scroll disk under the action of the gas force in the compression chamber, resulting in leakage and reducing the energy consumption of the compressor. The existing solution is to set a back pressure chamber on the back of the moving disk and introduce the pressure in the middle part of the compression chamber to act on the back of the moving disk, so that the moving and stationary disks are re - attached under the action of the back pressure to ensure the performance of the compressor.

[0003] The problem with the existing technology is that when the introduced gas back pressure is small, the reliability of the compressor is guaranteed, but the separation of the scroll disks is large, and the performance of the compressor is reduced. And in this scheme, to ensure the performance of the compressor, the machining accuracy requirements for the end faces of the moving and stationary disks and the dimensional accuracy of the space available for the movement of the moving disk by the bracket are also greatly improved, resulting in a large machining investment, and the friction between the moving disk and the bracket reduces the service life of the compressor.

[0004] All existing solutions in the prior art are to open back pressure holes on the moving disk to introduce the gas in the compression chamber into the back pressure chamber between the moving disk and the bracket to provide back pressure for the moving disk. However, the back pressure provided is usually small, and the effect of offsetting the force generated by the compression of the moving and stationary disks is poor. And the back pressure chamber is usually located at a position far from the outer edge of the moving disk in the radial direction. The overturning force between the moving and stationary disks usually acts on the edge of the moving disk. Therefore, the back pressure in the existing structure cannot effectively prevent the moving disk from overturning, and there is a problem of the moving disk overturning. And due to the friction between the moving disk and the bracket, there are problems of large power consumption and noise, which requires high machining accuracy for the compressor bracket and limits the floating space of the moving disk to the extreme.

[0005] Since the scroll compressors in the prior art have technical problems such as the back pressure chamber and the back pressure holes cannot effectively prevent the moving disk from overturning, and there is a problem of the moving disk overturning, the present disclosure researches and designs a pump body structure, a scroll compressor, and an air conditioner.

[0006] Disclosed content

[0007] Therefore, the technical problem to be solved by the present disclosure is to overcome the defects that the back pressure chamber and the back pressure holes in the existing scroll compressors cannot effectively prevent the moving disk from overturning and there is a problem of the moving disk overturning, so as to provide a pump body structure, a scroll compressor, and an air conditioner.

[0008] To solve the above problems, the present disclosure provides a pump body structure, which includes:

[0009] A stationary scroll disk, a moving scroll disk, and a bracket. A compression chamber is formed between the stationary scroll disk and the moving scroll disk. There is a back pressure chamber between the moving scroll disk and the bracket. A communication channel is also provided inside the moving scroll substrate. One end of the communication channel can communicate with the compression chamber to suck gas from the compression chamber, and the other end of the communication channel can communicate to a position between the moving scroll disk and the bracket and radially outside the back pressure chamber to form an air film between the moving scroll disk and the bracket.

[0010] In some embodiments, the moving scroll disk includes moving scroll teeth and a moving scroll substrate. The moving scroll teeth are provided on the moving scroll substrate, and the moving scroll substrate includes a first radially outer segment opposite to the bracket in the axial direction of the moving scroll disk. The bracket includes a second radially outer segment opposite to the first radially outer segment in the axial direction. Both the first radially outer segment and the second radially outer segment are located radially outside the back pressure chamber.

[0011] The communication channel is provided inside the moving scroll substrate, and the other end of the communication channel can communicate between the first radially outer segment and the second radially outer segment to form an air film between the first radially outer segment and the second radially outer segment.

[0012] In some embodiments, the communication channel includes a first air guiding channel, an intermediate channel, and a spraying channel. One end of the first air guiding channel communicates with the compression chamber and the other end communicates with the intermediate channel. The intermediate channel is opened inside the moving scroll substrate. One end of the spraying channel communicates with the intermediate channel and the other end communicates to the end face on the second radially outer segment opposite to the first radially outer segment.

[0013] In some embodiments, the first air guiding channel extends along the axial direction, and the spraying channel extends along the axial direction.

[0014] In some embodiments, the intermediate channel includes a second air guiding channel and an annular groove. The second air guiding channel extends inside the moving scroll substrate, and one end of the second air guiding channel communicates with the first air guiding channel and the other end communicates with the annular groove. The annular groove is a circumferentially extending groove, and the annular groove communicates with the spraying channel.

[0015] In some embodiments, the second air guiding channel extends perpendicular to the axial direction. In the cross-section of the moving scroll disk, the annular groove is an arc-shaped annular groove centered on the center of the moving scroll disk.

[0016] In some embodiments, the spraying channel is an arc-shaped groove centered on the center of the moving scroll disk.

[0017] In some embodiments, there are two annular grooves, two second air extraction channels and two first air extraction channels. The first air extraction channels and the second air extraction channels correspond to each other one by one, the second air extraction channels and the annular grooves correspond to each other one by one, and the first air extraction channels, the second air extraction channels and the annular grooves are communicated in sequence.

[0018] In some embodiments, the pump body structure further includes a self-rotation limiting component. A key groove capable of cooperating with the self-rotation limiting component is further provided on the moving scroll substrate. One of the annular grooves is located on one side in the circumferential direction of the key groove, and the other annular groove is located on the other side in the circumferential direction of the key groove.

[0019] In some embodiments, the central angle range of the annular groove is (0, 180°), there are two key grooves which are symmetrically arranged with respect to the center of the moving scroll disk, and the two annular grooves are symmetrically arranged with respect to the center of the moving scroll disk.

[0020] In some embodiments, a ring groove forming member is further included. A notch is formed in a portion of the first radially outer segment opposite to the second radially outer segment. The ring groove forming member is disposed in the notch to form the injection channel and the annular groove with the first radially outer segment.

[0021] In some embodiments, in a cross-section passing through the axis of the moving scroll disk, the ring groove forming member is an L-shaped structure, so that the injection channel and the annular groove are connected to form an L-shaped groove.

[0022] The present disclosure further provides a scroll compressor, which includes the pump body structure described in any one of the previous items.

[0023] The present disclosure further provides an air conditioner, which includes the scroll compressor described in any one of the previous items.

[0024] A pump body structure, a scroll compressor and an air conditioner provided by the present disclosure have the following beneficial effects:

[0025] The present disclosure can effectively lead the gas inside the compression chamber to the bracket and the moving scroll disk bracket through the communication channel opened inside the moving scroll disk, and the other end of the communication channel is located at a position radially outside the back pressure chamber, thereby forming an air film between the two, isolating the contact between the moving scroll disk and the bracket, and offsetting part of the tipping moment of the moving disk through the reaction force formed with the bracket, so as to reduce the tipping force generated by the compression chamber acting on the radially outer side of the moving scroll disk, reduce the tipping moment, and effectively prevent the moving scroll disk from tipping; and the air film formed between the bracket and the moving scroll disk can isolate the contact between the moving scroll disk and the bracket, effectively reduce the friction between the moving scroll disk and the bracket, and further solve the problems of large power consumption and frictional noise caused by friction; and because the contact and friction between the moving scroll disk and the bracket are isolated, the machining accuracy of the bracket can be effectively reduced, and the floating space of the moving scroll disk can be increased, improving the operation reliability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a partial longitudinal internal sectional view of the scroll compressor pump body structure of the present disclosure;

[0027] Figure 2 is Figure 1 a partial enlarged view of part A in

[0028] Figure 3 is Figure 1 a front longitudinal sectional view of the moving scroll disk in

[0029] Figure 4 is Figure 1 a bottom view of the moving scroll disk in

[0030] The reference numerals are shown as:

[0031] 1, stationary scroll disk; 2, moving scroll disk; 3, bracket; 4, shafting; 5, compression chamber; 6, back pressure chamber; 21, moving scroll base plate; 22, moving scroll teeth; 23, first radially outer segment; 24, keyway; 31, second radially outer segment; 202, ring groove forming part; 100, communication channel; 2-4, first air guiding channel; 200, intermediate channel; 2-1, second air guiding channel; 2-2, ring groove; 2-3, injection channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] As Figures 1-4 shown, the present disclosure provides a pump body structure, which includes:

[0033] A stationary scroll disk 1, a moving scroll disk 2 and a bracket 3, a compression chamber 5 is formed between the stationary scroll disk 1 and the moving scroll disk 2, a back pressure chamber 6 is provided between the moving scroll disk 2 and the bracket 3, and a communication channel 100 is further provided inside the moving scroll disk 2. One end of the communication channel 100 can communicate with the compression chamber 5 to suck gas from the compression chamber, and the other end of the communication channel 100 can communicate to a position between the moving scroll disk 2 and the bracket 3 and radially outside the back pressure chamber 6 to form an air film between the moving scroll disk 2 and the bracket 3.

[0034] Through the communication channel opened inside the moving scroll disk in the present disclosure, and the other end of the communication channel is located at a position radially outside the back pressure chamber, the gas inside the compression chamber can be effectively led out to the bracket and the moving scroll disk bracket, so as to form an air film between the two, isolate the contact between the moving scroll disk and the bracket, and offset part of the tipping moment of the moving disk through the reaction force formed with the bracket, so as to reduce the tipping force generated by the compression chamber acting on the radially outside of the moving scroll disk, reduce the tipping moment, and effectively prevent the moving scroll disk from tipping; and the air film formed between the bracket and the moving scroll disk can isolate the contact between the moving scroll disk and the bracket, effectively reduce the friction between the moving scroll disk and the bracket, and further solve the problems of large power consumption and friction noise caused by friction; and because the contact and friction between the moving scroll disk and the bracket are isolated, the machining accuracy of the bracket can be effectively reduced, and the floating space of the moving scroll disk can be increased, improving the operation reliability of the compressor.

[0035] The design of the back pressure part of the traditional scroll compressor is only fine-tuned on the basis of experience accumulation, and mainly ensures the accuracy of the stationary and moving disks and the bracket, so as to limit the floating space of the moving disk with better accuracy, and there is no obvious effect on the tipping action of the moving disk; reducing the floating space of the moving disk will cause wear on the end face of the moving disk. The traditional compressor can only ensure minimal contact between the end faces through the lubrication effect of oil, so the demand for oil is large. Once the oil is lacking, the stationary and moving disks will quickly wear.

[0036] The back pressure floating structure of the present invention mainly aims to suppress the wear between the moving disk and the bracket when the back pressure is insufficient, ensure that there is no contact between the bracket and the bottom of the moving disk in various situations, and at the same time ensure the back pressure environment.

[0037] The back pressure floating structure of the present invention forms an air film with the bracket. This air film generates a reaction force on the moving disk, so that an upward reaction force is generated on the edge part of the moving disk, so as to offset the tipping moment action generated by the gas force and ensure the stable operation of the moving disk.

[0038] In some embodiments, the moving scroll disk 2 includes moving scroll teeth 22 and a moving scroll base plate 21. The moving scroll teeth 22 are disposed on the moving scroll base plate 21, and the moving scroll base plate 21 includes a first radially outer segment 23 opposite to the bracket 3 in the axial direction of the moving scroll disk 2. The bracket 3 includes a second radially outer segment 31 opposite to the first radially outer segment 23 in the axial direction. Both the first radially outer segment 23 and the second radially outer segment 31 are located radially outside the back pressure chamber 6.

[0039] The communication channel 100 is disposed inside the moving scroll base plate 21, and the other end of the communication channel 100 can communicate to between the first radially outer segment 23 and the second radially outer segment 31 to form an air film between the first radially outer segment 23 and the second radially outer segment 31.

[0040] This is the preferred opening position and opening method of the communication channel of the present disclosure, that is, the position of the moving scroll disk at the radially outer side is the first radially outer segment, the bracket opposite to the first radially outer segment is the second radially outer segment, and both the first radially outer segment and the second radially outer segment are located outside the back pressure chamber. In the prior art, the first radially outer segment and the second radially outer segment are in contact, and the two end faces are in contact, where relatively large friction will be generated, and the overturning force and moment generated in the compression chamber will still cause the moving scroll disk to overturn. However, in the present disclosure, one end of the communication channel is disposed at this radially outer side position, and the gas introduced into the compression chamber is led to between the first and second radially outer segments, which can form an air film between the radially outer end of the moving scroll disk and the radially outer end of the bracket, offset the overturning moment, reduce the friction between the bracket and the moving scroll disk, reduce power consumption and noise, and the machining accuracy of the upper end face of the bracket can be appropriately reduced, and the floating space of the moving scroll disk is larger, which is beneficial to the compression process.

[0041] In some embodiments, the communication channel 100 includes a first air guiding channel 2-4, an intermediate channel 200, and a jet channel 2-3. One end of the first air guiding channel 2-4 communicates with the compression chamber 5, and the other end communicates with the intermediate channel 200. The intermediate channel 200 is opened inside the moving scroll base plate 21. One end of the jet channel 2-3 communicates with the intermediate channel 200, and the other end communicates to the end face on the second radially outer segment 31 opposite to the first radially outer segment 23. This is the preferred structural form of the communication channel of the present disclosure, that is, the first air guiding channel communicating with the compression chamber, the jet channel communicating with the lower end face of the moving scroll disk, and the intermediate channel, so that the high-pressure or medium-pressure gas inhaled from the compression chamber through the first air guiding channel enters the jet channel through the transmission of the intermediate channel and is jetted to the end face space between the first and second radially outer segments to form an air film there.

[0042] In some embodiments, the first air bleeding channel 2-4 extends along the axial direction, and the injection channel 2-3 extends along the axial direction. This is a preferred structural form of the first air bleeding channel and the injection channel in the present disclosure, that is, the first air bleeding channel extends in the axial direction of the moving scroll disk, and can introduce gas axially from the inside of the compression chamber. The injection channel extending along the axis enables the gas to be injected axially to the end face between the first and second radially outer segments, so as to enhance the impact force of the gas, effectively form an air film, and isolate the bracket and the moving scroll disk.

[0043] In some embodiments, the intermediate channel 200 includes a second air bleeding channel 2-1 and an annular groove 2-2. The second air bleeding channel 2-1 extends inside the moving scroll base plate 21, and one end of the second air bleeding channel 2-1 communicates with the first air bleeding channel 2-4 and the other end communicates with the annular groove 2-2. The annular groove 2-2 is a groove extending in a ring shape, and the annular groove 2-2 communicates with the injection channel 2-3. This is a preferred structural form of the intermediate channel in the present disclosure, that is, the second air bleeding channel is used to introduce gas from the first air bleeding channel. The annular groove extends in a ring shape on the moving scroll disk, and can increase the acting area of the gas distributed on the end face between the moving scroll disk and the bracket, so that the gas pressure distribution acting between the moving scroll disk and the bracket is more uniform, improve the effect of forming the air film in the outer segment, solve the overturning problem more thoroughly, and also solve the friction and noise problems more thoroughly.

[0044] Air bleeding small holes (the first air bleeding channel 2-4) and transverse air bleeding orifice (the second air bleeding channel 2-1) are formed on the moving disk body. The air bleeding small holes communicate with the transverse air bleeding orifice, and the transverse air bleeding orifice communicates with the annular groove 2-2 with the key groove as the demarcation point, and the annular grooves do not communicate with each other; an air flow outlet (the injection channel 2-3) is formed on the moving disk, and this air flow outlet communicates with the annular groove 2-2, and the whole moving disk is supported by a bracket.

[0045] In some embodiments, the second air bleeding channel 2-1 extends perpendicular to the axial direction. In the cross section of the moving scroll disk 2, the annular groove 2-2 is an arc-shaped groove centered on the center of the moving scroll disk 2. This is a further preferred structural form of the second air bleeding channel in the present disclosure, that is, as Figures 2-4 shown, it extends in the horizontal direction. The annular groove being an arc-shaped groove centered on the center of the moving scroll disk can improve the uniformity of the acting area on the bracket. Since the shape of the bracket matches the shape of the moving scroll disk, the arc-shaped groove centered on the center of the moving scroll disk in the present disclosure can improve the uniformity of the acting area on the end face of the bracket.

[0046] In some embodiments, the injection channel 2-3 is an arc-shaped annular groove centered on the center of the moving scroll disk 2. This is a preferred structural form of the injection channel of the present disclosure. By setting it as an arc-shaped annular groove centered on the center of the moving scroll disk, the area of the injection channel acting on the bracket can be increased, the force of the gas acting between the relatively radially outer end faces of the moving scroll disk and the bracket can be enhanced, the gas film can be enhanced, the degree of reduction of the overturning force can be increased, and the degree of reduction of friction and noise can be increased.

[0047] The injection channel of the present disclosure can also be a single axially extending groove, as well as a structure of multiple axially grooves spaced apart in the circumferential direction.

[0048] In some embodiments, there are two of the annular grooves 2-2, two of the second air guiding channels 2-1 and two of the first air guiding channels 2-4. Moreover, the first air guiding channel 2-4 and the second air guiding channel 2-1 correspond one by one, the second air guiding channel 2-1 and the annular groove 2-2 correspond one by one, and the first air guiding channel 2-4, the second air guiding channel 2-1 and the annular groove 2-2 are connected in sequence. The two annular grooves, two first air guiding channels and two second air guiding channels of the present disclosure can form a gas acting air film in two parts in the circumferential direction, increase the distribution area of the air film at the bottom of the moving scroll disk, increase the acting force on the radially outer side, further reduce the overturning force, and reduce friction and noise.

[0049] In some embodiments, the pump body structure further includes a self-rotation limiting component, and a keyway 24 capable of cooperating with the self-rotation limiting component is further provided on the moving scroll substrate 21. One of the annular grooves 2-2 is located on one side in the circumferential direction of the keyway 24, and the other annular groove 2-2 is located on the other side in the circumferential direction of the keyway 24. As Figure 4 shown, there are two annular grooves in the present disclosure, one is located on one side of the two keyways, and the other is located on the other side of the two keyways, which can make the radially outer side of the moving scroll disk be arranged with annular grooves as much as possible in the circumferential direction, and increase the acting area of the introduced gas.

[0050] In some embodiments, the central angle range of the annular groove 2-2 is (0, 180°), there are two keyways 24 and they are symmetrically arranged with respect to the center of the moving scroll disk 2, and the two annular grooves 2-2 are symmetrically arranged with respect to the center of the moving scroll disk 2. This is a further preferred structural form of the annular groove of the present disclosure. Two annular grooves not exceeding 180° are respectively symmetric with respect to the center of the moving scroll disk, and the two keyways are also symmetric with respect to the center, making the air film distribution more uniform and the gas acting force more uniform and reliable.

[0051] In some embodiments, it further includes a ring groove forming member 202. A portion of the first radially outer segment 23 opposite to the second radially outer segment 31 forms a notch. The ring groove forming member 202 is disposed at the notch to form the injection channel 2-3 and the ring groove 2-2 with the first radially outer segment 23. Through the arrangement of the ring groove forming member, the present disclosure can cooperate with the first radially outer segment to form the injection channel and the ring groove. Such a split structure helps with processing and manufacturing, avoiding the problem of inconvenient processing caused by opening multiple complex holes inside the moving scroll disk.

[0052] In some embodiments, in a cross-section passing through the axis of the moving scroll disk 2, the ring groove forming member 202 has an L-shaped structure, such that the injection channel 2-3 and the ring groove 2-2 are connected to form an L-shaped groove. This is a preferred structure of the ring groove of the present disclosure. Through the arrangement of the ring groove forming member, the connection between the injection channel and the ring groove forms an L shape in the longitudinal sectional view.

[0053] The present disclosure also provides a scroll compressor, which includes the pump body structure described in any one of the preceding items.

[0054] The backpressure floating structure of the present disclosure is composed of a stationary scroll disk 1, a moving scroll disk 2, a bracket 3, a shafting 4, and a compression chamber 5. Two small holes (the first air guiding channel 2-4) are opened at the bottom of the teeth on the moving disk. These holes do not penetrate the entire moving disk. The lower end of the holes is connected to a transverse hole (the second air guiding channel 2-1), and this transverse hole communicates with the edge of the moving disk. The transverse hole should be as short as possible to avoid affecting the stiffness of the moving disk substrate. The edge of the moving disk is an L-shaped groove. The moving disk is integrally connected to the ring groove forming member 202. After the ring groove forming member 202 and the moving disk are assembled, an annular and interconnected inner groove (the ring groove 2-2) is formed inside. This ring groove 2-2 is demarcated by a key groove. The angle of the ring groove is less than 180°, and the ring grooves 2-2 do not communicate with each other. Below the ring groove 2-2, there is a gas ejection port (the injection channel 2-3) on the back surface of the substrate. The cross-sectional area of this gas ejection port is smaller than that of the ring groove 2-2, and after a certain pressure of gas is ejected, an air film can be formed between the moving disk and the bracket.

[0055] The backpressure floating structure of the present disclosure introduces the gas in the compression chamber into the ring groove 2-2. After spreading in the ring groove 2-2, it fills the entire ring groove and is ejected from the gas ejection port (the injection channel 2-3) under pressure. When the ejected gas reaches the surface of the bracket 3, an air film is formed between the moving scroll disk 2 and the bracket 3 under the action of the gas force. The air film reacts on the moving disk to form a reaction force to counteract the action of the overturning moment of the moving disk.

[0056] The present disclosure also provides an air conditioner, which includes the scroll compressor described in any one of the preceding items.

[0057] The above are only the preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure. The above is only the preferred implementation manner of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present disclosure, several improvements and variations can be made, and these improvements and variations should also be regarded as within the protection scope of the present disclosure.

Claims

1. A pump body structure, characterized in that: Comprising: A stationary scroll plate (1), a moving scroll plate (2) and a bracket (3), a compression chamber (5) is formed between the stationary scroll plate (1) and the moving scroll plate (2), a back pressure chamber (6) is provided between the moving scroll plate (2) and the bracket (3), a communication channel (100) is further provided inside the moving scroll plate (2), one end of the communication channel (100) can communicate with the compression chamber (5) to suck gas from the compression chamber, and the other end of the communication channel (100) can communicate to a position between the moving scroll plate (2) and the bracket (3) and radially outside the back pressure chamber (6) to form an air film between the moving scroll plate (2) and the bracket (3); The moving scroll plate (2) includes moving scroll teeth (22) and a moving scroll base plate (21), the moving scroll teeth (22) are arranged on the moving scroll base plate (21), and the moving scroll base plate (21) includes a first radially outer segment (23) opposite to the bracket (3) in the axial direction of the moving scroll plate (2), the bracket (3) includes a second radially outer segment (31) opposite to the first radially outer segment (23) in the axial direction; both the first radially outer segment (23) and the second radially outer segment (31) are located radially outside the back pressure chamber (6); The communication channel (100) includes a first air guiding channel (2-4), an intermediate channel (200) and a jet channel (2-3), one end of the first air guiding channel (2-4) communicates with the compression chamber (5) and the other end communicates with the intermediate channel (200), the intermediate channel (200) is provided inside the moving scroll base plate (21), one end of the jet channel (2-3) communicates with the intermediate channel (200) and the other end communicates to an end face on the second radially outer segment (31) opposite to the first radially outer segment (23); The intermediate channel (200) includes a second air guiding channel (2-1) and an annular groove (2-2), the second air guiding channel (2-1) extends inside the moving scroll base plate (21), and one end of the second air guiding channel (2-1) communicates with the first air guiding channel (2-4) and the other end communicates with the annular groove (2-2), the annular groove (2-2) is a circumferentially extending groove, and the annular groove (2-2) communicates with the jet channel (2-3); the annular groove (2-2) is located at the radially outer end of the second air guiding channel (2-1), and the jet channel (2-3) is located on the radially inner circumference of the annular groove (2-2).

2. The pump body structure according to claim 1, characterized in that: The communication channel (100) is provided inside the moving scroll base plate (21).

3. The pump body structure according to claim 1, characterized in that: The first air guiding channel (2-4) extends along the axial direction, and the jet channel (2-3) extends along the axial direction.

4. The pump body structure according to claim 1, characterized in that: The second air intake passage (2-1) extends perpendicular to the axial direction. In the cross-section of the moving scroll disk (2), the annular groove (2-2) is an arc-shaped groove centered at the center of the moving scroll disk (2).

5. The pump body structure according to claim 4, characterized in that: The injection passage (2-3) is an arc-shaped annular groove centered at the center of the moving scroll disk (2).

6. The pump body structure according to any one of claims 1-5, characterized in that: There are two annular grooves (2-2), two second air intake passages (2-1) and two first air intake passages (2-4). The first air intake passage (2-4) and the second air intake passage (2-1) correspond to each other one by one. The second air intake passage (2-1) and the annular groove (2-2) correspond to each other one by one. The first air intake passage (2-4), the second air intake passage (2-1) and the annular groove (2-2) are connected in sequence.

7. The pump body structure according to claim 6, characterized in that: The pump body structure further includes a self-rotation limiting component. A keyway (24) capable of cooperating with the self-rotation limiting component is further provided on the moving scroll substrate (21). One annular groove (2-2) is located on one side in the circumferential direction of the keyway (24), and the other annular groove (2-2) is located on the other side in the circumferential direction of the keyway (24).

8. The pump body structure according to claim 7, characterized in that: The central angle range of the annular groove (2-2) is (0, 180°). There are two keyways (24) and they are symmetrically arranged with respect to the center of the moving scroll disk (2). The two annular grooves (2-2) are symmetrically arranged with respect to the center of the moving scroll disk (2).

9. The pump body structure according to claim 1, characterized in that: It further includes an annular groove forming member (202). A notch is formed in a part of the first radially outer section (23) opposite to the second radially outer section (31). The annular groove forming member (202) is arranged in the notch to form the injection passage (2-3) and the annular groove (2-2) with the first radially outer section (23).

10. The pump body structure according to claim 9, characterized in that: In the cross-section passing through the axis of the moving scroll disk (2), the annular groove forming member (202) is an L-shaped structure, so that the injection passage (2-3) and the annular groove (2-2) are connected to form an L-shaped groove.

11. A scroll compressor, characterized in that: It includes the pump body structure according to any one of claims 1-10.

12. An air conditioner, characterized in that: It includes the scroll compressor according to claim 11.

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