Compressor and air conditioning equipment comprising same

Abstract

The invention relates to the technical field of air conditioning equipment, in particular to a compressor and air conditioning equipment comprising the compressor, and aims to solve the problem that a diffuser of an existing compressor cannot be switched between a bladed state and a bladeless state. Therefore, the compressor comprises a shell, a diffuser body, a diffuser ring and a driving mechanism, the diffuser body, the diffuser ring and the driving mechanism are mounted in the shell, an exhaust passage is formed between the diffuser body and the shell, an annular cavity is formed in the diffuser body, the diffuser ring is mounted in the annular cavity, blades are arranged on the diffuser ring, an annular opening is formed in the annular cavity, and the driving mechanism is arranged in the annular opening. The driving mechanism can drive the diffuser ring to move so that the blades can stretch out of the annular opening, the driving mechanism drives the blades of the diffuser ring to stretch out or retract from the annular opening, switching of the diffuser between a bladed state and a bladeless state is achieved, the efficiency of the compressor is improved through the bladed diffuser when the compressor is in a normal load state, and the service life of the compressor is prolonged. And meanwhile, the stable operation range of the compressor in a partial load state is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and particularly provides a compressor and an air conditioning equipment including the compressor. Background Art

[0002] With the improvement of people's living standards, commercial air conditioners have become common air conditioning equipment in shopping malls, supermarkets, data centers, etc. The centrifugal compressor is the core component of the air conditioner. The low-temperature and low-pressure gaseous refrigerant can be compressed into a high-temperature and high-pressure gaseous refrigerant through the centrifugal compressor, and then the high-temperature and high-pressure gaseous refrigerant enters the condenser for heat exchange.

[0003] The diffusers of existing centrifugal compressors are divided into two types: vane-less and vane-type. When the refrigeration capacity required by the terminal is near the rated refrigeration capacity, the vane-type diffuser has higher efficiency than the vane-less diffuser; when the refrigeration capacity required by the terminal is small and the compressor operates under part load, the vane-less diffuser has a wider stable operating range than the vane-type diffuser, can reach a lower refrigeration capacity operating range, and has higher efficiency at the same time. Therefore, both the vane-type diffuser and the vane-less diffuser have their own advantages and disadvantages.

[0004] The diffuser of the existing compressor can only select one of the vane-type diffuser or the vane-less diffuser, and cannot realize the switching between the vane-type diffuser and the vane-less diffuser. Therefore, it cannot simultaneously meet the usage requirements of the compressor to improve the efficiency of the compressor through the vane-type diffuser under normal load conditions and to broaden the stable operating range of the compressor through the vane-less diffuser under part load conditions.

[0005] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve the above technical problems, that is, to solve the problem that the diffuser of the existing compressor cannot be switched between vane-type and vane-less.

[0007] In a first aspect, the present invention provides a compressor, including: a housing, a diffuser body installed in the housing, a diffuser ring, and a driving mechanism. An exhaust passage is formed between the diffuser body and the housing. A ring-shaped chamber is provided on the diffuser body. The diffuser ring is installed in the ring-shaped chamber. Blades are provided on the side wall of the diffuser ring close to the exhaust passage. A ring-shaped opening is provided on one side of the ring-shaped chamber facing the exhaust passage. The driving mechanism can drive the diffuser ring to move so that the blades extend out from the ring-shaped opening.

[0008] In the case of adopting the above technical solution, the present invention drives the diffuser ring to move in the annular chamber through the driving mechanism so that the blades extend or retract from the annular opening, realizing the switching of the compressor diffuser between having blades and having no blades. When the compressor is in the normal load state, the efficiency of the compressor is improved through the bladed diffuser. At the same time, when the compressor is in the partial load state, the compressor can operate in the operating range with lower refrigeration capacity through the vaneless diffuser, broadening the stable operating range of the compressor.

[0009] In the preferred technical solution of the above compressor, the driving mechanism is a magnet assembly, and the magnet assembly is installed on the side wall of the diffuser ring and the annular chamber.

[0010] In the case of adopting the above technical solution, the present invention sets the driving mechanism as a magnet assembly installed on the side wall of the diffuser ring and the annular chamber, so that the diffuser ring can move in the annular chamber under the action of magnetic attraction force. The structure is simple, convenient for operation and installation, and cost-saving.

[0011] In the preferred technical solution of the above compressor, the magnet assembly includes a first electromagnetic element and a second electromagnetic element. The first electromagnetic element is installed on the side wall of the diffuser ring far from or close to the exhaust passage, and the second electromagnetic element is installed on the side wall of the annular chamber opposite to the first electromagnetic element. The first electromagnetic element and the second electromagnetic element move the diffuser ring in the direction close to or away from the exhaust passage by respectively passing the same-direction current or reverse-direction current.

[0012] In the case of adopting the above technical solution, the present invention sets the first electromagnetic element and the second electromagnetic element relatively arranged on the side wall of the diffuser ring and the side wall of the annular chamber, so that when the first electromagnetic element and the second electromagnetic element respectively pass the same-direction current or reverse-direction current, the diffuser ring can be moved in the direction close to or away from the exhaust passage, and the blades extend or retract from the annular opening, thereby realizing the switching of the compressor diffuser between having blades and having no blades. The structure form is simple, convenient for operation and installation.

[0013] In the preferred technical solution of the above compressor, the magnet assembly includes a first electromagnetic element and a permanent magnet element. One of the first electromagnetic element and the permanent magnet element is installed on the diffuser ring, and the other of the first electromagnetic element and the permanent magnet element is installed on the side wall of the annular chamber. The first electromagnetic element changes the direction of the current to move the diffuser ring in the direction close to or away from the exhaust passage.

[0001] In the case of adopting the above technical solution, the present invention enables the diffuser ring to move in the direction close to or away from the exhaust passage by arranging the first electromagnetic element and the permanent magnet element oppositely disposed on the side wall of the diffuser ring and the annular chamber. The structural form is simple, and it is convenient for operation and installation.

[0002] In the preferred technical solution of the above compressor, the compressor further includes an elastic member installed in the annular chamber. The elastic member extends along the moving direction of the diffuser ring, and both ends of the elastic member are respectively connected to the diffuser ring and the side wall of the annular chamber.

[0003] In the case of adopting the above technical solution, the present invention arranges an elastic member between the diffuser ring and the side wall of the annular chamber, so that when the diffuser ring moves in the annular chamber, the elastic member can prevent the diffuser ring from moving, thereby enabling the moving amount of the diffuser ring to be controlled by changing the magnetic force of the magnet assembly. The structure is simple, and it is convenient for operation and installation.

[0014] In the preferred technical solution of the above compressor, the number of the blades is multiple, and the multiple blades are circumferentially spaced apart along the diffuser ring.

[0015] In the case of adopting the above technical solution, the present invention increases the number of blades by arranging the blades as multiple circumferentially spaced apart along the diffuser ring. When the compressor is in a normal load state, the guiding effect of the multiple blades is more significant, enhancing the guiding ability of the diffuser and improving the working efficiency of the compressor.

[0016] In the preferred technical solution of the above compressor, the blades are inclined in the direction towards the outlet of the exhaust passage.

[0017] In the case of adopting the above technical solution, the present invention arranges the blades to be inclined in the direction towards the outlet of the exhaust passage, so that when the gaseous refrigerant flows in the exhaust passage, it can flow along the guiding direction of the blades towards the outlet of the exhaust passage, thereby enhancing the guiding effect of the blades.

[0018] In the preferred technical solution of the above compressor, the compressor is further provided with a blocking structure, and the blocking structure is arranged on the annular opening to prevent the diffuser ring from disengaging from the annular opening.

[0019] In the case of adopting the above technical solution, the present invention prevents the diffuser ring from disengaging from the annular opening by arranging the blocking structure. When all the blades extend out of the annular opening, the diffuser ring just abuts against the blocking structure. Such a setting has a simple structural form and is convenient for installation and maintenance.

[0020] In the preferred technical solution of the above compressor, the number of the blocking structures is two, and the two blocking structures are oppositely arranged on both sides of the annular opening.

[0021] In the case of adopting the above technical solution, by arranging the blocking structures as two that are oppositely arranged on both sides of the annular opening, the present invention makes it more difficult for the diffuser ring to escape from the annular opening, enhancing the blocking effect of the blocking structures.

[0022] In the preferred technical solution of the above compressor, the blocking structure is fixedly connected or integrally provided with the diffuser body.

[0023] In the case of adopting the above technical solution, by fixedly connecting or integrally providing the blocking structure with the diffuser ring, the present invention gives users more choices.

[0024] In the preferred technical solution of the above compressor, the compressor further includes a position detection component installed in the housing, and the position detection component is used to detect the position of the diffuser ring in the annular chamber.

[0025] In the case of adopting the above technical solution, by setting the position detection component to detect the position of the diffuser ring in the annular chamber, the present invention can control the moving amount of the diffuser ring in the annular chamber, and thus can more precisely control the cross-sectional area of the exhaust passage, and further control the flow rate of the refrigerant gas in the exhaust passage.

[0026] In the preferred technical solution of the above compressor, the position detection component is a distance sensor, the distance sensor is installed on the first side wall or the second side wall of the annular chamber, the first side wall and the second side wall are oppositely arranged along the moving direction of the diffuser ring, and the distance sensor is used to detect the distance between the diffuser ring and the first side wall or the second side wall.

[0027] In the case of adopting the above technical solution, by using the distance sensor to detect the distance between the diffuser ring and the side wall of the annular chamber, the structure is simple, and it is convenient for installation and measurement.

[0028] In a second aspect, the present invention further provides an air conditioning device, which includes the above compressor.

[0029] In the case of adopting the above technical solution, the air conditioning equipment of the present invention includes the above compressor, and thus has the beneficial effects of the above compressor. Compared with the air conditioning equipment before improvement, the compressor of the air conditioning equipment of the present invention drives the diffuser ring to move in the annular chamber through the driving mechanism so that the blades extend or retract from the annular opening, realizing the switching of the diffuser of the compressor between having blades and having no blades. When the compressor is in the normal load state, the efficiency of the compressor is improved through the vane diffuser, and at the same time, when the compressor is in the partial load state, the compressor can operate in the operating range with lower refrigeration capacity through the bladeless diffuser, broadening the stable operating range of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, in which:

[0031] Figure 1 is a cross-sectional view of the diffuser of the compressor of the present invention in the state of having blades;

[0032] Figure 2 is Figure 1 an enlarged view of part A in

[0033] Figure 3 is a cross-sectional view of the diffuser of the compressor of the present invention in the state of having no blades;

[0034] Figure 4 is Figure 3 an enlarged view of part B in

[0035] Figure 5 is a schematic structural view of the diffuser ring of the compressor of the present invention;

[0036] Figure 6 is Figure 5 a cross-sectional view taken along line C-C in

[0037] LIST OF REFERENCE NUMERALS:

[0038] 1, housing;

[0039] 2, impeller;

[0040] 3, diffuser body; 31, annular chamber;

[0041] 4, diffuser ring; 41, blade;

[0042] 5, driving mechanism; 51, first electromagnetic element; 52, second electromagnetic element;

[0043] 6, exhaust passage;

[0044] 7, blocking structure;

[0045] 8, distance sensor;

[0046] 9. Elastic member. Specific embodiments

[0047] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0048] It should be noted that in the description of the present invention, the terms "inner", "outer", "upper", "lower", "left", "right" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "arrangement", "connection", "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] Based on the problem pointed out in the background art that the diffuser of the existing compressor cannot be switched between vane and vaneless, the present invention provides a compressor and an air conditioning device including the compressor, aiming to drive the diffuser ring to move in the annular chamber by a driving mechanism so that the blades extend or retract from the annular opening, realizing the switching of the diffuser of the compressor between vane and vaneless. Not only does the compressor improve the efficiency of the compressor through the vane diffuser under the rated capacity, but also makes the stable operation range of the compressor wider through the vaneless diffuser under partial load conditions.

[0051] Specifically, the present invention provides an air conditioning device, including a compressor, which can compress the refrigerant medium in the air conditioning device into a high-temperature and high-pressure gaseous refrigerant. Then, the high-temperature and high-pressure gaseous refrigerant enters the evaporator or condenser through a pipeline for heat exchange, thereby realizing the temperature adjustment.

[0052] As pointed out in the background art, when the refrigeration capacity required by the terminal is near the rated refrigeration capacity, the diffuser using a vaned diffuser has higher efficiency than a vaneless diffuser; when the refrigeration capacity required by the terminal is small and it operates under partial load, the diffuser using a vaneless diffuser has a wider stable operating range than a vaned diffuser, can reach a lower refrigeration capacity operating range, and has higher efficiency at the same time. Existing compressors cannot achieve the switching between a vaned diffuser and a vaneless diffuser.

[0053] As Figures 1 to 4 shown, the compressor of the present invention includes a housing 1, a diffuser body 3 installed in the housing 1, a diffuser ring 4, and a driving mechanism 5. An exhaust passage 6 is formed between the diffuser body 3 and the housing 1. A ring chamber 31 is provided on the diffuser body 3. The diffuser ring 4 is installed in the ring chamber 31. Vanes 41 are provided on the side wall of the diffuser ring 4 close to the exhaust passage 6. An annular opening is provided on the side of the ring chamber 31 facing the exhaust passage 6. The driving mechanism 5 can drive the diffuser ring 4 to move so that the vanes 41 extend out from the annular opening.

[0054] Exemplarily, as Figures 1 to 4 shown, an impeller 2 and a diffuser body 3 are installed in the housing 1 of the compressor of the present invention. An exhaust passage 6 is formed between the diffuser body 3 and the housing 1. An air inlet and an air outlet are provided on the housing 1. The gaseous refrigerant enters the compressor through the air inlet, and the gaseous refrigerant is accelerated and thrown into the diffuser body 3 by the high-speed rotation of the impeller 2. The high-speed gaseous refrigerant decelerates in the diffuser body 3, and the dynamic pressure is converted into static pressure, and the kinetic energy is converted into pressure energy to realize the increase of the pressure of the refrigerant gas. The high-temperature and high-pressure gaseous refrigerant is then discharged from the exhaust port to the next-stage pipeline through the exhaust passage 6.

[0055] Taking Figure 1 and Figure 3 as an example of the perspective, the impeller 2 is located on the left side inside the housing 1, the diffuser body 3 is located on the right side of the impeller 2. An exhaust passage 6 is formed between the diffuser body 3 and the housing 1. A ring chamber 31 is provided on the diffuser body 3. The diffuser ring 4 is installed in the ring chamber 31. An annular opening is provided on the right side of the ring chamber 31. Vanes 41 are provided on the right side wall of the diffuser ring 4. When the compressor is in the normal load working state, the driving mechanism 5 drives the diffuser ring 4 to move to the right, so that the vanes 41 extend out of the ring chamber 31, thereby making the diffuser become a vaned diffuser and improving the working efficiency of the compressor. When the compressor is in the partial load working state, the driving mechanism 5 drives the diffuser ring 4 to move to the left, so that the vanes 41 retract into the ring chamber 31, thereby making the diffuser become a vaneless diffuser. Through the vaneless diffuser, the compressor can operate in a lower refrigeration capacity operating range, broadening the stable operating range of the compressor.

[0056] It should be noted that the present invention does not limit the number of stages of the impeller 2. For example, those skilled in the art can set the impeller 2 as a single-stage impeller 2, a two-stage impeller 2, or a multi-stage impeller 2, etc. according to specific usage requirements. Such adjustments and changes to the specific number of stages of the impeller 2 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0057] It should also be noted that the present invention does not limit the structural form of the driving mechanism 5. For example, those skilled in the art can set the driving mechanism 5 in the form of a combination of a gear and a rack to drive the diffuser ring 4 to move, or the driving mechanism 5 can also be set as an electromagnetic component to drive the diffuser ring 4 to move by magnetic force, etc. Such adjustments and changes to the specific structural form of the driving mechanism 5 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0058] Preferably, as Figures 1 to 4 shown, the driving mechanism 5 of the present invention is a magnet assembly, and the magnet assembly is installed on the side walls of the diffuser ring 4 and the annular chamber 31.

[0059] That is to say, by installing a mutually cooperating magnet assembly on the side walls of the diffuser ring 4 and the annular chamber 31, the diffuser ring 4 can be driven to move in the annular chamber 31 by magnetic attraction force.

[0060] It should be noted that the present invention does not limit the form of the magnet assembly. For example, those skilled in the art can set the magnet assembly as two electromagnetic elements relatively installed on the side wall of the annular chamber 31 and the side wall of the diffuser ring 4, and the diffuser ring 4 is moved by passing the same-direction current or reverse-direction current through the two electromagnetic elements respectively, or the diffuser ring 4 can also be set as a permanent magnet, and an electromagnetic element is set on the side wall of the annular chamber 31, and the diffuser ring 4 is moved by changing the magnetic pole of the electromagnetic element. Or, a permanent magnet can also be set on the side wall of the annular chamber 31, and an electromagnetic element is set on the diffuser ring 4, and the diffuser ring 4 is moved by changing the magnetic pole of the electromagnetic element, etc. Such adjustments and changes to the specific form of the magnet assembly do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0004] Preferably, as Figures 1 to 4 shown, the magnet assembly 5 of the present invention includes a first electromagnetic element 51 and a second electromagnetic element 52. The first electromagnetic element 51 is installed on the side wall of the diffuser ring 4 away from or close to the exhaust passage 6, and the second electromagnetic element 52 is installed on the side wall of the annular chamber 31 opposite to the first electromagnetic element 51. The first electromagnetic element 51 and the second electromagnetic element 52 make the diffuser ring 4 move in the direction of approaching or departing from the exhaust passage 6 by passing the same-direction current or reverse-direction current respectively.

[0005] Exemplarily, as Figures 1 to 4 shown, taking the perspectives in Figure 1 and Figure 3 as an example, the first electromagnetic element 51 of the present invention is installed on the left side wall of the diffuser ring 4, and the second electromagnetic element 52 is installed on the left side wall of the annular chamber 31. The first electromagnetic element 51 and the second electromagnetic element 52 can respectively conduct the same-direction current or the reverse-direction current, so as to generate a repulsive force or an attractive force between the first electromagnetic element 51 and the second electromagnetic element 52, and further enable the diffuser ring 4 to move in a direction close to or away from the exhaust passage 6.

[0006] Specifically, when the compressor is in a normal-load working state, the same-direction current is conducted in the first electromagnetic element 51 and the second electromagnetic element 52, and a repulsive force will be generated between the first electromagnetic element 51 and the second electromagnetic element 52, causing the first electromagnetic element 51 to drive the diffuser ring 4 to move towards the annular opening, so that the blades 41 of the diffuser ring 4 extend into the exhaust passage 6, and the diffuser of the compressor becomes a vane diffuser, thereby improving the efficiency of the compressor.

[0007] When the compressor is in a part-load working state, the reverse-direction current is conducted in the first electromagnetic element 51 and the second electromagnetic element 52, and an attractive force will be generated between the first electromagnetic element 51 and the second electromagnetic element 52, causing the first electromagnetic element 51 to drive the diffuser ring 4 to move towards the second electromagnetic element 52, so that the blades 41 of the diffuser ring 4 are all retracted into the annular chamber 31. At this time, the diffuser of the compressor becomes a vaneless diffuser, and through the vaneless diffuser, the compressor can operate in a lower refrigeration capacity operation range, broadening the stable operation range of the compressor.

[0008] It should be noted that the present invention does not limit the installation positions of the first electromagnetic element 51 and the second electromagnetic element 52. For example, those skilled in the art can also install the first electromagnetic element 51 on the right side wall of the diffuser ring 4 and the second electromagnetic element 52 on the right side wall of the annular chamber 31. Or, the first electromagnetic element 51 and the second electromagnetic element 52 can be interchanged. Or, the side walls of the diffuser ring 4 and the annular chamber 31 can be set as electromagnetic elements simultaneously or separately, etc. Such adjustments and changes to the specific installation positions of the first electromagnetic element 51 and the second electromagnetic element 52 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0009] It should also be noted that the present invention can also set one of the first electromagnetic element 51 and the second electromagnetic element 52 as a permanent magnet element, and move the diffuser ring 4 in a direction close to or away from the exhaust passage 6 by changing the direction of the current of the first electromagnetic element 51 or the second electromagnetic element 52.

[0010] Taking the second electromagnetic element 52 being set as a permanent magnet element as an example, as Figures 1 to 4 shown, the first electromagnetic element 51 is installed on the left side wall of the diffuser ring 4, and the permanent magnet element is installed on the left side wall of the annular chamber 31. The first electromagnetic element 51 can conduct forward current or reverse current respectively to change the direction of the magnetic pole, so as to generate a repulsive force or an attractive force between the first electromagnetic element 51 and the permanent magnet element, and further make the diffuser ring 4 move in the direction close to or away from the exhaust passage 6.

[0011] Specifically, when the compressor is in the working state of normal load, forward current is conducted in the first electromagnetic element 51, and a repulsive force will be generated between the first electromagnetic element 51 and the permanent magnet element, causing the first electromagnetic element 51 to drive the diffuser ring 4 to move towards the annular opening, so that the blades 41 of the diffuser ring 4 extend into the exhaust passage 6, and the diffuser of the compressor becomes a vane diffuser, thereby improving the efficiency of the compressor.

[0012] When the compressor is in the working state of partial load, reverse current is conducted in the first electromagnetic element 51, and an attractive force will be generated between the first electromagnetic element 51 and the permanent magnet element, causing the first electromagnetic element 51 to drive the diffuser ring 4 to move towards the permanent magnet element, so that the blades 41 of the diffuser ring 4 are all retracted into the annular chamber 31. At this time, the diffuser of the compressor becomes a vaneless diffuser, and through the vaneless diffuser, the compressor can operate in the operating range with lower refrigeration capacity, broadening the stable operating range of the compressor.

[0013] Preferably, as Figures 1 to 4 shown, the compressor of the present invention further includes an elastic member 9 installed in the annular chamber. The elastic member 9 extends along the moving direction of the diffuser ring 4, and both ends of the elastic member 9 are respectively connected to the diffuser ring 4 and the side wall of the annular chamber 31.

[0014] Exemplarily, as Figures 1 to 4 shown, the elastic member 9 of the present invention is installed on the left side wall of the diffuser ring 4 and the left side wall of the annular chamber 31 along the left-right direction. When the diffuser ring 4 moves in the annular chamber 31, the elastic member 9 can prevent the diffuser ring 4 from moving, so that the magnitude of the magnetic force can be changed by changing the magnitude of the current of the magnet assembly 5, and thus the moving amount of the diffuser ring 4 in the annular chamber 31 can be controlled.

[0015] It should be noted that the present invention does not limit the installation position of the elastic member 9. For example, those skilled in the art can also install the elastic member 9 on the right side wall of the diffuser ring 4 and the right side wall of the annular chamber 31, or can also install the elastic member 9 on the side walls on both sides of the diffuser ring 4, etc. Such adjustments and changes to the specific installation position of the elastic member 9 do not deviate from the principle and scope of the present invention, and should all be limited within the protection scope of the present invention.

[0016] It should also be noted that the present invention does not limit the type of the elastic member 9. For example, those skilled in the art can set the elastic member 9 as a spring or a member made of other elastic materials, as long as it has resilience. Such adjustments and changes to the specific type of the elastic member 9 do not deviate from the principle and scope of the present invention and should all be defined within the protection scope of the present invention.

[0061] Preferably, as Figure 5 and Figure 6 shown, the number of the vanes 41 of the diffuser ring 4 of the present invention is multiple, and the multiple vanes 41 are distributed at intervals along the circumferential direction of the diffuser ring 4.

[0062] Exemplarily, as Figure 5 and Figure 6 shown, the multiple vanes 41 of the diffuser ring 4 of the present invention are distributed at intervals along the circumferential direction of the diffuser ring 4 and are vertically installed on the diffuser ring 4, and the vanes 41 extend along the radial direction of the diffuser ring 4.

[0063] By setting the number of the vanes 41 as multiple, the number of the vanes is increased. When the compressor is in a normal load state, the flow guiding effect of the multiple vanes 41 is more remarkable, the flow guiding ability of the diffuser is enhanced, and the working efficiency of the compressor is improved.

[0064] It should be noted that the present invention does not limit the shape of the vane 41. For example, those skilled in the art can set the vane 41 as a rectangle, a sector or an arc surface, etc., as long as it can play a role in flow guiding. Such adjustments and changes to the specific shape of the vane 41 do not deviate from the principle and scope of the present invention and should all be defined within the protection scope of the present invention.

[0065] Preferably, as Figure 5 shown, the vane 41 of the present invention is inclined in the direction towards the outlet of the exhaust passage 6.

[0066] By inclining the vane 41 in the direction towards the outlet of the exhaust passage 6, when the gaseous refrigerant flows in the exhaust passage 6, it can flow along the flow guiding direction of the vane 41 towards the outlet of the exhaust passage 6, thereby enhancing the flow guiding effect of the vane 41 and improving the working efficiency of the compressor.

[0067] Preferably, as Figure 2 and Figure 4 shown, the compressor of the present invention is further provided with a blocking structure 7, and the blocking structure 7 is arranged on the annular opening to prevent the diffuser ring 4 from disengaging from the annular opening.

[0068] It should be noted that the present invention does not limit the setting position of the blocking structure 7. For example, those skilled in the art can set the blocking structure 7 on the side of the annular opening close to the center of the diffuser ring 4, or can also set the blocking structure 7 on the side of the annular opening far from the center of the diffuser ring 4. Or, the blocking structure 7 can also be set on both sides of the annular opening at the same time, etc. Such adjustments and changes to the specific shape of the blade 41 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0069] Preferably, as Figure 2 and Figure 4 shown, the number of the blocking structures 7 of the present invention is two, and the two blocking structures 7 are oppositely arranged on both sides of the annular opening.

[0070] Exemplarily, as Figure 2 and Figure 4 shown, the blocking structure 7 of the present invention is annular, and the two blocking structures 7 are oppositely installed at both ends of the annular opening. When all the blades 41 extend out from the annular opening, the diffuser ring 4 just abuts against the two blocking structures 7, so as to prevent the diffuser ring 4 from disengaging from the annular opening.

[0071] Preferably, as Figure 2 and Figure 4 shown, the blocking structure 7 of the present invention is fixedly connected or integrally provided with the diffuser body 3.

[0072] By fixedly connecting or integrally providing the blocking structure 7 with the diffuser body 3, more choices are given to users.

[0073] Certainly, the present invention preferably integrally casts and forms the blocking structure 7 and the diffuser body 3. Such a setting is convenient for processing and installation and saves costs.

[0074] Preferably, as Figures 1 to 4 shown, the compressor of the present invention further includes a position detection member installed in the housing 1, and the position detection member is used to detect the position of the diffuser ring 4 in the annular chamber 31.

[0075] That is to say, the position detection member can detect the position of the diffuser ring 4 in the annular chamber 31 in real time, so as to control and adjust the amount of the protruding portion 42 of the diffuser ring 4 extending out of the annular opening, so as to adjust the cross-sectional area of the exhaust passage 6, so that the compressor can be applicable to different working conditions.

[0076] Preferably, as Figures 1 to 4As shown, the position detection component of the present invention is the distance sensor 8. The distance sensor 8 is installed on the first side wall or the second side wall of the annular chamber 31. The first side wall and the second side wall are oppositely arranged along the moving direction of the diffuser ring 4. The distance sensor 8 is used to detect the distance between the diffuser ring 4 and the first side wall or the second side wall.

[0077] Exemplarily, as Figures 1 to 4 shown, the distance sensor 8 of the present invention is installed on the left side wall of the annular chamber 31, that is, installed on the second electromagnetic element 52. The distance sensor 8 can detect the distance between the diffuser ring 4 and the left side wall of the annular chamber 31, so as to control the position of the diffuser ring 4 in the annular chamber 31 through the controller of the air conditioning device.

[0078] It should be noted that the present invention does not limit the installation position of the distance sensor 8. For example, those skilled in the art can also install the distance sensor 8 on the right side wall of the annular chamber 31. From Figure 1 and Figure 2 it can be seen that the right side wall of the annular chamber 31 is a pressing plate. Such adjustments and changes to the specific installation position of the distance sensor 8 do not deviate from the principle and scope of the present invention and should all be defined within the protection scope of the present invention.

[0079] Those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims of this application, any one of the claimed embodiments can be used in any combination.

[0080] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A compressor, characterized in that, Comprising: A housing, a diffuser body installed within the housing, a diffuser ring, and a drive mechanism. An exhaust passage is formed between the diffuser body and the housing. The diffuser body is provided with an annular chamber. The diffuser ring is installed within the annular chamber. Blades are provided on the side wall of the diffuser ring close to the exhaust passage. An annular opening is provided on the side of the annular chamber facing the exhaust passage. The drive mechanism can drive the diffuser ring to move so that the blades extend out from the annular opening.

2. The compressor according to claim 1, characterized in that, The drive mechanism is a magnet assembly, and the magnet assembly is installed on the side walls of the diffuser ring and the annular chamber.

3. The compressor according to claim 2, characterized in that, The magnet assembly includes a first electromagnetic element and a second electromagnetic element. The first electromagnetic element is installed on the side wall of the diffuser ring away from or close to the exhaust passage. The second electromagnetic element is installed on the side wall of the annular chamber opposite to the first electromagnetic element. The first electromagnetic element and the second electromagnetic element move the diffuser ring in a direction close to or away from the exhaust passage by respectively passing in the same or opposite direction of current; or The magnet assembly includes a first electromagnetic element and a permanent magnet element. One of the first electromagnetic element and the permanent magnet element is installed on the diffuser ring, and the other of the first electromagnetic element and the permanent magnet element is installed on the side wall of the annular chamber. The first electromagnetic element moves the diffuser ring in a direction close to or away from the exhaust passage by changing the direction of the current.

4. The compressor according to claim 1, characterized in that, The compressor further includes an elastic member installed within the annular chamber. The elastic member extends along the moving direction of the diffuser ring, and two ends of the elastic member are respectively connected to the diffuser ring and the side wall of the annular chamber.

5. The compressor according to claim 1, characterized in that, The number of the blades is multiple, and the multiple blades are spaced apart circumferentially along the diffuser ring; and / or The blades are inclined in the direction of the air outlet facing the exhaust passage.

6. The compressor according to claim 1, wherein The compressor is further provided with a blocking structure, and the blocking structure is arranged on the annular opening to prevent the diffuser ring from disengaging from the annular opening.

7. The compressor according to claim 6, wherein, The number of the blocking structures is two, and the two blocking structures are oppositely arranged on both sides of the annular opening; and / or The blocking structure is fixedly connected or integrally provided with the diffuser body.

8. The compressor according to any one of claims 1 to 7, characterized in that, The compressor further includes a position detection member installed within the housing, and the position detection member is used to detect the position of the diffuser ring within the annular chamber.

9. The compressor according to claim 8, characterized in that, The position detection member is a distance sensor, and the distance sensor is installed on the first side wall or the second side wall of the annular chamber. The first side wall and the second side wall are oppositely arranged along the moving direction of the diffuser ring, and the distance sensor is used to detect the distance between the diffuser ring and the first side wall or the second side wall.

10. An air conditioning device, characterized in that, Including the compressor according to any one of claims 1 to 9.

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