Compressor

Abstract

The compressor comprises an air cylinder, a rotor and a plurality of blades, the air cylinder is provided with an air cylinder cavity, an air inlet and an air outlet, the rotor is rotationally arranged in the air cylinder cavity, the air cylinder is provided with a partition piece, and the outer circumferential face of the rotor is slidably connected to the partition piece so that the air inlet and the air outlet can be separated on the two sides of the partition piece in a sealed mode; the multiple blades are sequentially arranged between the rotor and the side wall of the air cylinder cavity at intervals in the rotating direction of the rotor so that the air cylinder cavity can be divided into multiple compression cavities. The rotor rotationally drives the multiple blades to slide along the side wall of the air cylinder cavity so as to change the volumes and the positions of the multiple compression cavities. When the compression cavity is communicated with the air inlet for air suction, the compression cavity and the exhaust port are kept sealed and isolated; and when the compression cavity is communicated with the exhaust port for exhausting, the compression cavity and the air inlet are kept sealed and isolated.

Description

Technical Field

[0001] The present application relates to the field of air compression, and in particular to a compressor. Background Art

[0002] There is an eccentric cam structure (crankshaft) on the motor shaft of the air-conditioning rotor-type refrigeration compressor. When the motor shaft rotates, it drives the rolling rotor to rotate. At the same time, the cylinder cavity is divided into multiple compression chambers by multiple blades on the rotor, realizing the processes of suction, compression, and exhaust of the gaseous refrigerant.

[0003] The existing rotor compressor has an exhaust valve plate installed at the exhaust port to prevent the exhaust gas from flowing back to the compressor. The exhaust valve plate collides with the compressor during the opening and closing process, resulting in a large noise. Utility Model Content

[0004] The utility model provides a compressor to solve the technical problem that the exhaust valve plate in the compressor generates relatively large noise.

[0005] To achieve the above objectives, the present application proposes a compressor comprising a cylinder, a rotor, and a plurality of blades. The cylinder is provided with a cylinder cavity, an air inlet, and an exhaust port. The rotor is rotatably disposed in the cylinder cavity. The cylinder is provided with a barrier. The outer peripheral surface of the rotor is slidably connected to the barrier to seal and separate the air inlet and the exhaust port on both sides of the barrier.

[0006] The multiple blades are arranged in sequence and at intervals between the rotor and the side wall of the cylinder chamber along the rotation direction of the rotor to divide the cylinder chamber into multiple compression chambers; the rotor rotates to drive the multiple blades to slide along the side wall of the cylinder chamber to change the volume and position of the multiple compression chambers; when the compression chamber and the air inlet are connected for intake, the compression chamber and the exhaust port remain sealed and isolated; when the compression chamber and the exhaust port are connected for exhaust, the compression chamber and the air inlet remain sealed and isolated.

[0007] Optionally, in one embodiment, when the compression chamber and the exhaust port are connected, the volume of the compression chamber is compressed to a minimum value.

[0008] Optionally, in one embodiment, the rotor is eccentrically disposed in the cylinder cavity; and the plurality of blades are equidistantly spaced in sequence along the circumference of the rotor.

[0009] Optionally, in one embodiment, a guide groove is provided on the rotor, an elastic portion is provided in the guide groove, one end of the blade away from the side wall of the cylinder cavity is slidably provided in the guide groove and is connected to the elastic portion, and the elastic portion is used to change the length of the blade between the outer circumferential surface of the rotor and the inner circumferential surface of the cylinder.

[0010] Optionally, in one embodiment, the blade is provided with a rolling portion, and the rolling portion is rollingly connected to the inner circumferential surface of the cylinder cavity.

[0011] Optionally, in one embodiment, along the radial direction of the rotor, there is an angle between the blade and the radial direction of the rotor.

[0012] Optionally, in one embodiment, the air inlet includes a first air inlet and a second air inlet, and along the rotation direction of the rotor, the first air inlet, the second air inlet and the exhaust port are arranged in sequence, and the pressure of the gas entering the first air inlet is less than the pressure of the gas entering the second air inlet.

[0013] Optionally, in one embodiment, an air intake cavity is provided on the side wall of the cylinder cavity, and the air intake cavity is connected between the first air inlet and at least two of the compression chambers.

[0014] Optionally, in one embodiment, a mounting groove is provided on the side wall of the cylinder cavity, the barrier member is located in the mounting groove, the barrier member includes a spring, a barrier portion and an abutment portion, the abutment portion is rotatably connected to the barrier portion and is rollingly connected to the outer circumferential surface of the rotor, and the spring is connected to the cylinder to drive the abutment portion to press against the rotor.

[0015] Optionally, in one embodiment, the blocking portion is provided with a step surface abutting against a side wall of the mounting groove to limit the blocking portion from entering the cylinder cavity.

[0016] The compressor provided in the present application seals and separates the air inlet and the exhaust port by setting a baffle, thereby improving the sealing between the air inlet and the exhaust port, preventing the backflow of the discharged high-pressure gas, and ensuring effective compression, thereby omitting the exhaust valve plate in the related technology and fundamentally solving the noise problem of the exhaust valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the compressor of this application;

[0019] Figure 2 This is a cross-sectional view of the compressor of this application.

[0020] Description of Figure Numbers:

[0021] 1. Cylinder; 11. First air inlet; 12. Second air inlet; 13. Exhaust port; 14. Cylinder chamber; 141. Compression chamber; 15. Inlet chamber; 2. Rotor; 3. Blades; 31. Elastic portion; 32. Rolling portion; 4. Blocking member; 41. Spring; 42. Blocking portion; 43. Abutting portion.

[0022] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0024] The present invention provides a compressor to solve the problem of exhaust gas backflow, which will be described below with reference to the accompanying drawings.

[0025] In the embodiments of this application, Figure 1 As shown, the compressor includes a cylinder 1, a rotor 2, and a plurality of blades 3. The cylinder 1 is provided with a cylinder cavity 14, an air inlet, and an exhaust port 13. The rotor 2 is rotatably disposed in the cylinder cavity 14. The cylinder 1 is provided with a barrier 4. The outer peripheral surface of the rotor 2 is slidably connected to the barrier 4 to seal the air inlet and exhaust port 13 on both sides of the barrier 4.

[0026] Multiple blades 3 are arranged in sequence and at intervals between the rotor 2 and the side wall of the cylinder chamber 14 along the rotation direction of the rotor 2 to divide the cylinder chamber 14 into multiple compression chambers 141; the rotor 2 rotates to drive the multiple blades 3 to slide along the side wall of the cylinder chamber 14 to change the volume and position of the multiple compression chambers 141; when the compression chamber 141 and the air inlet are connected for intake, the compression chamber 141 and the exhaust port 13 remain sealed and isolated; when the compression chamber 141 and the exhaust port 13 are connected for exhaust, the compression chamber 141 and the air inlet remain sealed and isolated.

[0027] It can be understood that the multiple blades 3 divide the cylinder cavity 14 into multiple compression chambers 141 that are sealed from each other, and the air inlet and exhaust port 13 are sealed and separated by the partition 4, thereby improving the sealing between the air inlet and exhaust port 13, blocking the backflow of the discharged gas, and ensuring the effective compression of the gas, thereby omitting the exhaust valve plate in the related technology and fundamentally solving the noise problem of the exhaust valve plate.

[0028] In some embodiments, as Figure 1 As shown, when compression chamber 141 is connected to exhaust port 13, the volume of compression chamber 141 is compressed to its minimum value. It should be noted that the minimum value means that the volume of compression chamber 141 connected to exhaust port 13 is the smallest compared to the other compression chambers 141. This maximizes gas compression, improving the compressor's compression performance.

[0029] In some embodiments, as Figure 1 As shown, the rotor 2 is eccentrically arranged in the cylinder cavity 14; a plurality of blades 3 are arranged in sequence and at equal intervals along the circumference of the rotor 2.

[0030] It should be noted that the eccentric arrangement means that the central axis of the rotor 2 does not coincide with the central axis of the cylinder chamber 14. It is understood that the multiple blades 3 divide the cylinder chamber 14 into multiple compression chambers 141 with different volumes. As the blades 3 rotate with the rotor 2, the compression chamber 141 between two adjacent blades 3 approaches the exhaust port 13 along the direction of rotor 2 rotation, and its volume gradually decreases as it approaches the exhaust port 13.

[0031] In some embodiments, as Figure 1 As shown, a guide groove is provided on the rotor 2, and an elastic portion 31 is provided in the guide groove. One end of the blade 3 away from the side wall of the cylinder cavity 14 is slidably provided in the guide groove and connected to the elastic portion 31. The elastic portion 31 is used to change the length of the blade 3 between the outer circumference of the rotor 2 and the inner circumference of the cylinder 1. Exemplarily, the elastic portion 31 can refer to a spring 41 or an elastomer made of an elastic material. The elastic portion 31 has a tendency to drive the blade 3 to press against the side wall of the cylinder cavity 14. This improves the sealing between adjacent compression chambers 141 and ensures that the gas in each compression chamber 141 can be effectively compressed.

[0032] In some embodiments, as Figure 1 As shown, the blade 3 is provided with a rolling portion 32, which is rollingly connected to the inner circumferential surface of the cylinder chamber 14. It can be understood that the rolling of the rolling portion 32 can reduce the frictional heat generated when the blade 3 is directly slidingly connected to the side wall of the cylinder chamber 14, and can also reduce the resistance encountered by the rotor 2 when the blade 3 is driven, and can also improve the sealing performance of the compression chamber 141.

[0033] In some embodiments, as Figure 2As shown, along the radial direction of rotor 2, blade 3 forms an angle with respect to the radial direction of rotor 2. It should be understood that the angle between blade 3 and the radial direction of rotor 2 means that blade 3 is tilted relative to the radial direction of rotor 2. For example, the end of blade 3 away from the axis of rotor 2 is tilted in the direction of rotation of rotor 2, or the end of blade 3 away from the axis of rotor 2 is tilted in the direction opposite to the rotation of rotor 2. This reduces the resistance to the movement of blade 3 and, in turn, the rolling portion 32 when rotor 2 drives the movement, allowing the rolling portion 32 to better roll against the sidewall of cylinder chamber 14.

[0034] In some embodiments, as Figure 1 and Figure 2 As shown, the air inlet includes a first air inlet 11 and a second air inlet 12. Along the rotation direction of the rotor 2, the first air inlet 11 and the second air inlet 12 are arranged in sequence away from the exhaust port 13. The pressure of the gas introduced into the first air inlet 11 is lower than the pressure of the gas introduced into the second air inlet 12. It can be understood that the first air inlet 11 introduces gas with a relatively low pressure, while the second air inlet 12 introduces gas with a relatively high pressure. Taking one of the compression chambers 141 that introduces gas from the first air inlet 11 as an example, when the compression chamber 141 rotates to the second air inlet 12, the gas introduced from the second air inlet 12 mixes with the original gas, increasing the pressure in the compression chamber 141 and further compressing it, which is beneficial to improving the compression performance of the compressor.

[0035] Furthermore, in some embodiments, the first air inlet 11 is used to communicate with an indoor heat exchanger of the air conditioner, and the second air inlet 12 is used to communicate with a flash evaporator of the air conditioner.

[0036] In some embodiments, as Figure 2 As shown, the second air inlet 12 is arranged away from the air outlet 13 .

[0037] In some embodiments, as Figure 2 As shown, an air intake chamber 15 is provided on the sidewall of the cylinder chamber 14. The air intake chamber 15 communicates between the first air inlet 11 and at least two compression chambers 141. It is understood that, along the direction of airflow within the first air inlet 11, one end of the air intake chamber 15 communicates with the first air inlet 11, and the other end communicates with the multiple compression chambers 141. This prolongs the air intake time of the compression chambers 141, allowing them to be filled with sufficient gas after exhausting.

[0038] In some embodiments, as Figure 2 As shown, the air inlet cavity 15 and the air outlet 13 are sealed and separated on both sides of the barrier 4 .

[0039] In some embodiments, as Figure 2As shown, a mounting groove is provided on the side wall of the cylinder cavity 14, and the barrier member 4 is located in the mounting groove. The barrier member 4 includes a spring 41, a barrier portion 42 and an abutment portion 43. The abutment portion 43 is rotatably connected to the barrier portion 42 and is rollingly connected to the outer peripheral surface of the rotor 2. The spring 41 is connected to the cylinder 1 to drive the abutment portion 43 to press against the rotor 2.

[0040] It will be appreciated that the spring 41 forces the abutment portion 43 to press against the rotor 2. The rotational abutment portion 43 rolls against the outer circumference of the rotor 2, thereby reducing frictional heat generated during the sliding connection with the rotor 2. This also reduces the resistance experienced by the rotor 2 when driving the vanes 3, and improves the sealing performance of the compression chamber 141. In some specific embodiments, at least a portion of the abutment portion 43 distal to the barrier portion 42 is located within the cylinder chamber 14, thereby providing a better rolling connection with the outer circumference of the rotor 2 or the rolling portion 32 of the vanes 3.

[0041] In some embodiments, as Figure 2 As shown, the baffle 42 is provided with a step surface abutting against the side wall of the mounting groove to limit the baffle 42 from entering the cylinder cavity 14. In this way, the step surface cooperates with the side wall of the mounting groove to limit the range of motion of the baffle and prevent part of the baffle from entering the compression cavity 141 too much.

[0042] The present application also provides an air conditioner comprising an indoor heat exchanger, a flash evaporator, and the aforementioned compressor. The indoor heat exchanger is connected to a first air inlet 11, and the flash evaporator is connected to a second air inlet 12. It should be noted that the flash evaporator is an evaporation device. The flash evaporator comprises a heating chamber and an evaporation chamber. The flash evaporator uses a heating medium to rapidly boil a liquid under partial vacuum conditions, thereby achieving rapid evaporation and concentration of the liquid.

[0043] In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features.

[0044] The compressor provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. At the same time, for those skilled in the art, based on the idea of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A compressor, characterized in that: The invention comprises a cylinder (1), a rotor (2) and a plurality of blades (3), wherein the cylinder (1) is provided with a cylinder cavity (14), an air inlet and an exhaust port (13), the rotor (2) is rotatably arranged in the cylinder cavity (14), the cylinder (1) is provided with a baffle (4), and the outer peripheral surface of the rotor (2) is slidably connected to the baffle (4) to seal and separate the air inlet and the exhaust port (13) on both sides of the baffle (4); The plurality of blades (3) are sequentially and spaced apart between the rotor (2) and the side wall of the cylinder chamber (14) along the rotation direction of the rotor (2) to divide the cylinder chamber (14) into a plurality of compression chambers (141); the rotor (2) rotates to drive the plurality of blades (3) to slide along the side wall of the cylinder chamber (14) to change the volume and position of the plurality of compression chambers (141); when the compression chamber (141) and the air inlet are connected to each other for air intake, the compression chamber (141) and the air outlet (13) are kept sealed and isolated; when the compression chamber (141) and the air outlet (13) are connected to each other for air exhaust, the compression chamber (141) and the air inlet are kept sealed and isolated.

2. The compressor according to claim 1, characterized in that When the compression chamber (141) and the exhaust port (13) are in communication, the volume of the compression chamber (141) is compressed to a minimum value.

3. The compressor according to claim 1, characterized in that The rotor (2) is eccentrically arranged in the cylinder cavity (14); the plurality of blades (3) are arranged in sequence at equal intervals along the circumference of the rotor (2).

4. The compressor according to claim 1, characterized in that A guide groove is provided on the rotor (2), and an elastic portion (31) is provided in the guide groove. One end of the blade (3) away from the side wall of the cylinder cavity (14) is slidably provided in the guide groove and connected to the elastic portion (31). The elastic portion (31) is used to change the length of the blade (3) between the outer peripheral surface of the rotor (2) and the inner peripheral surface of the cylinder (1).

5. The compressor according to claim 4, characterized in that The blade (3) is provided with a rolling portion (32), and the rolling portion (32) is rollingly connected to the inner peripheral surface of the cylinder cavity (14).

6. The compressor according to claim 1, characterized in that Along the radial direction of the rotor (2), an angle exists between the blades (3) and the radial direction of the rotor (2).

7. The compressor according to claim 1, characterized in that The air inlet comprises a first air inlet (11) and a second air inlet (12); along the rotation direction of the rotor (2), the first air inlet (11), the second air inlet (12) and the exhaust port (13) are sequentially arranged at intervals; the pressure of the gas introduced into the first air inlet (11) is lower than the pressure of the gas introduced into the second air inlet (12).

8. The compressor according to claim 7, characterized in that An air intake cavity (15) is provided on the side wall of the cylinder cavity (14), and the air intake cavity (15) is connected between the first air inlet (11) and at least two compression cavities (141).

9. The compressor according to claim 1, characterized in that A mounting groove is provided on the side wall of the cylinder cavity (14), and the baffle (4) is located in the mounting groove. The baffle (4) includes a spring (41), a baffle portion (42), and an abutment portion (43). The abutment portion (43) is rotatably connected to the baffle portion (42) and is rollingly connected to the outer peripheral surface of the rotor (2). The spring (41) is connected to the cylinder (1) to drive the abutment portion (43) to press against the rotor (2).

10. The compressor according to claim 9, characterized in that The blocking portion (42) is provided with a stepped surface abutting against a side wall of the installation groove to limit the blocking portion (42) from entering the cylinder cavity (14).

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