Air cylinder, compressor and refrigeration equipment

Abstract

The utility model discloses an air cylinder, a compressor and refrigeration equipment, and relates to the technical field of compressors, and the air cylinder comprises an air cylinder body and a one-way valve; the air cylinder body is provided with an air suction port, an exhaust port, a sliding piece groove, an air supplementing channel and a compression cavity, the air suction port, the exhaust port, the sliding piece groove and the air supplementing channel all communicate with the compression cavity, and the air suction port and the air supplementing channel are formed in the two opposite sides of the sliding piece groove correspondingly. The one-way valve can move towards or away from the air supply channel to close or open the air supply channel; wherein the minimum distance between the air outlet end of the air supplementing channel and the sliding piece groove is Lmin, and the condition that Lmin is larger than or equal to 1.5 mm is met. According to the technical scheme, the compression efficiency of the compressor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a cylinder, a compressor and a refrigeration device. Background Art

[0002] The compressor is an essential component of the air conditioning system. When the rotary compressor runs at high speed, the air intake volume of the cylinder is limited, resulting in low compression efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a cylinder, a compressor and a refrigeration device, aiming to improve the compression efficiency of the compressor.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a cylinder, comprising:

[0005] The cylinder body is provided with an air intake port, an air exhaust port, a vane groove, an air supply channel and a compression chamber, wherein the air intake port, the air exhaust port, the vane groove and the air supply channel are all connected to the compression chamber, and the air intake port and the air supply channel are respectively arranged on two opposite sides of the vane groove;

[0006] a one-way valve, movable toward or away from the gas supplement passage to close or open the gas supplement passage;

[0007] Wherein, the minimum distance between the air outlet end of the air supply channel and the slide groove is Lmin, and the condition is satisfied: Lmin≥1.5mm.

[0008] In one embodiment, the gas outlet end of the gas supplement channel is inclined toward the direction of the sliding vane groove.

[0009] In one embodiment, the angle at which the outlet end of the air supplement channel is inclined toward the sliding vane groove is defined as θ, and the condition is satisfied: 10°≤θ≤20°.

[0010] In one embodiment, the air supply channel includes a jet channel and a connecting channel, the jet channel is connected to the compression chamber through the connecting channel, the jet channel is arranged at an angle to at least a portion of the extended section of the connecting channel, and the one-way valve can move toward or away from the connecting channel to close or open the connecting channel.

[0011] In one embodiment, the vane groove and the jet channel are both extended along the radial direction of the cylinder body, and the included angle between the vane groove and the jet channel is defined as α, which satisfies the condition: α<30°.

[0012] In one embodiment, 18°≤α≤22.5°.

[0013] In one embodiment, an end surface of the cylinder body is defined as a projection surface, and a projection of the communication channel on the projection surface is located between projections of the vane groove and the jet channel on the projection surface.

[0014] In one embodiment, the connecting passage includes a first through hole and a second through hole that are connected to each other, the first through hole is arranged along the axial extension of the cylinder body and is arranged at an angle to the extension direction of the second through hole, the first through hole is connected to the injection passage, the second through hole is connected to the compression chamber, and the one-way valve can move toward or away from the first through hole to close or open the first through hole.

[0015] In one embodiment, a cross-sectional dimension of the communication channel is smaller than a cross-sectional dimension of the jet channel.

[0016] In one embodiment, the jet channel includes a first jet section and a second jet section that are connected to each other, the second jet section is connected to the connecting channel, and a cross-sectional size of the second jet section is smaller than a cross-sectional size of the first jet section.

[0017] In one embodiment, a cross-sectional size of the first jet section gradually decreases in a direction from the first jet section to the second jet section.

[0018] In one embodiment, a recessed groove is provided on one end surface of the cylinder body, and the one-way valve is provided in the recessed groove.

[0019] In one embodiment, the one-way valve is a one-way valve plate, the fixed end of which is close to the outer wall of the cylinder body and connected to the cylinder body, and the free end of which extends toward the inner wall of the cylinder body and can move toward or away from the air supply channel.

[0020] The utility model also provides a compressor, including a cylinder, the cylinder including:

[0021] The cylinder body is provided with an air intake port, an air exhaust port, a vane groove, an air supply channel and a compression chamber, wherein the air intake port, the air exhaust port, the vane groove and the air supply channel are all connected to the compression chamber, and the air intake port and the air supply channel are respectively arranged on two opposite sides of the vane groove;

[0022] a one-way valve, movable toward or away from the gas supplement passage to close or open the gas supplement passage;

[0023] Wherein, the minimum distance between the air outlet end of the air supply channel and the slide groove is Lmin, and the condition is satisfied: Lmin≥1.5mm.

[0024] The utility model also provides a refrigeration device, comprising the compressor as described above.

[0025] The technical solution of the utility model adopts a cylinder provided with an air supply channel and a one-way valve. When the cylinder is applied to a compressor, the roller of the compressor can inhale gas through the air intake port, and the vane of the compressor can drive the piston to slide in the compression chamber to compress the gas. When the air pressure in the compression chamber is lower than the air pressure in the injection channel, the one-way valve can move away from the air supply channel to open the air supply channel. At this time, gas can be injected into the compression chamber through the air supply channel to supply air to the compression chamber. In this way, when the compressor is running at a high speed, it can ensure that there is enough air intake in the compression chamber, thereby effectively improving the compression efficiency of the compressor. At the same time, it can also reduce the input force of the compressor when it rotates at a high speed, so as to reduce the energy consumption of the compressor.

[0026] In addition, when the cylinder is used in a compressor, the roller of the compressor can inhale gas through the air intake port during the rolling process. After the air intake is completed, the roller of the compressor stops working. At this time, the roller closes the air intake port. Since the angle between the air intake port and the vane groove is fixed, and the air intake port is usually set close to the vane groove, if the minimum distance between the air outlet end of the air supply channel and the vane groove is too small, the air outlet end of the air supply channel will be closer to the air intake port, so that the roller of the compressor will be closer to the air supply channel. Then, the gas ejected from the air supply channel will collide with the outer wall of the roller with a greater impact force and generate a greater reaction force, causing the gas in the compression chamber to flow back through the air supply channel and leak. Therefore, by increasing the minimum distance L between the air outlet end of the air supply channel and the vane groove min By controlling the range of not less than 1.5 mm, it is possible to ensure that the air supply channel has sufficient air supply to the compression chamber and avoid the problem of gas leakage in the compression chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A bottom view of an embodiment of a cylinder provided by the utility model when the one-way valve closes the communication channel;

[0029] Figure 2 for Figure 1 A partial enlarged view of

[0030] Figure 3 A bottom view of an embodiment of a cylinder provided by the utility model without a one-way valve;

[0031] Figure 4 for Figure 3 A partial enlarged view of

[0032] Figure 5 A cross-sectional view of an embodiment of a cylinder provided by the utility model;

[0033] Figure 6 A top view of an embodiment of a cylinder provided by the utility model;

[0034] Figure 7 A schematic diagram showing how the input force of the compressor provided by the utility model changes with the angle between the vane groove and the jet channel.

[0035] Description of Figure Numbers:

[0036] 100, cylinder; 10, cylinder body; 11, air intake; 12, air exhaust; 121, inlet passage; 122, resonance chamber; 13, vane groove; 10a, air supply passage; 14, jet passage; 141, first jet section; 142, second jet section; a, jet direction; 15, connecting passage; 151, first through hole; 152, second through hole; 16, compression chamber; 17, sink; 20, one-way valve; 21, fixed end; 22, free end.

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0041] The compressor is an essential component of the air conditioning system. When the rotary compressor runs at high speed, the air intake volume of the cylinder is limited, resulting in low compression efficiency.

[0042] Based on the above problems, the utility model proposes a cylinder, aiming to improve the compression efficiency of the compressor.

[0043] See also Figures 1 to 4 In one embodiment of the present utility model, the cylinder 100 includes a cylinder body 10 and a one-way valve 20;

[0044] The cylinder body 10 is provided with an air intake port 11, an air exhaust port 12, a vane groove 13, an air supply channel 10a and a compression chamber 16. The air intake port 11, the air exhaust port 12, the vane groove 13 and the air supply channel 10a are all connected to the compression chamber 16. The air intake port 11 and the air supply channel 10a are respectively arranged on opposite sides of the vane groove 13.

[0045] The one-way valve 20 can move toward or away from the air supplement channel 10a to close or open the air supplement channel 10a;

[0046] Wherein, the minimum distance between the air outlet end of the air supply channel 10a and the slide groove 13 is Lmin, and the condition is satisfied: Lmin≥1.5mm.

[0047] The technical solution of the utility model adopts a cylinder 100 provided with an air supply channel 10a and a one-way valve 20. When the cylinder 100 is applied to a compressor, the roller of the compressor can inhale gas through the air inlet 11, and the vane of the compressor can drive the piston to slide in the compression chamber 16 to compress the gas. When the air pressure in the compression chamber 16 is less than the air pressure in the injection channel 14, the one-way valve 20 can move away from the air supply channel 10a to open the air supply channel 10a. At this time, gas can be injected into the compression chamber 16 through the air supply channel 10a to supply air to the compression chamber 16. In this way, when the compressor is running at a high speed, it can ensure that there is enough air intake in the compression chamber 16, thereby effectively improving the compression efficiency of the compressor. At the same time, it can also reduce the input force of the compressor when it rotates at a high speed to reduce the energy consumption of the compressor.

[0048] In addition, when the cylinder 100 is applied to a compressor, the roller of the compressor can inhale gas through the air intake port 11 during the rolling process. After the air intake is completed, the roller of the compressor stops working. At this time, the roller closes the air intake port 11. Since the angle between the air intake port 11 and the vane groove 13 is fixed, and the air intake port 11 is usually arranged close to the vane groove 13, if the minimum distance between the air outlet end of the air supply channel 10a and the vane groove 13 is too small, the air outlet end of the air supply channel 10a will be closer to the air intake port 11, so that the roller of the compressor will be closer to the air supply channel 10a. Then, the gas ejected from the air supply channel 10a will collide with the outer wall of the roller with a greater impact force and generate a greater reaction force, so that the gas in the compression chamber 16 flows back through the air supply channel 10a and leaks. Therefore, by increasing the minimum distance L between the air outlet end of the air supply channel 10a and the vane groove 13 min By controlling the range of not less than 1.5 mm, it is possible to ensure that the air supply channel 10a has a sufficient air supply volume for the compression chamber 16 and also avoid the problem of gas leakage in the compression chamber 16 .

[0049] It should be noted that the one-way valve 20 allows external gas to enter the compression chamber 16 through the gas supplement channel 10a, and prevents the gas in the compression chamber 16 from being discharged through the gas supplement channel 10a, so as to avoid the phenomenon of gas backflow.

[0050] In actual application, the one-way valve 20 can move toward or away from the air supply channel 10a under the action of air pressure; or, an additional driving structure can be used to drive the one-way valve 20 to move toward or away from the air supply channel 10a.

[0051] In some embodiments, when the air pressure in the compression chamber 16 is lower than the air pressure in the injection channel 14, the one-way valve 20 can be sprayed through the air supply channel 10a. Under the action of the air pressure, the one-way valve 20 can be driven to move away from the air supply channel 10a to open the air supply channel 10a. At this time, the gas can enter the compression chamber 16 through the air supply channel 10a; when the air pressure in the compression chamber 16 is greater than or equal to the air pressure in the injection channel 14, the one-way valve 20 will lose the drive of the air pressure to close the air supply channel 10a. At this time, the gas in the compression chamber 16 can be prevented from being discharged through the air supply channel 10a. The one-way valve 20 is driven to move by air pressure, which can not only accurately close or open the connecting channel 15, but also reduce the use of additional driving structures, thereby reducing cost investment.

[0052] In actual application, the shape and structure of the one-way valve 20 can be determined according to actual conditions. For example, it can be a flat plate structure, an arc plate structure, or a structure composed of multiple arc plates / straight plates, etc. The specific structure is not limited here.

[0053] In actual application, the shape and structure of the air supply channel 10a can be determined according to actual conditions. For example, it can be a straight channel or an arc channel or a structure of multiple straight lines / or a combination of straight channels, etc. Its specific structure is not limited here.

[0054] In actual application, the exhaust port 12 and the air supplement channel 10 a may be located on the same side of the vane slot 13 , or may be located on two opposite sides of the vane slot 13 with the air supplement channel 10 a .

[0055] In some embodiments, see Figure 6 In order to reduce the noise generated during the operation of the compressor, especially the noise in the range of 1k to 2kHz, a resonance chamber 122 may be provided on one side of the exhaust port 12, and an inlet passage 121 may be provided between the resonance chamber 122 and the exhaust port 12. In this way, the compressed air discharged from the exhaust port 12 may enter the resonance chamber 122 from the inlet passage 121, which not only reduces the noise of the compressor, but also the inlet passage 121 and the resonance chamber 122 may be used for pressure relief when the pressure of the discharged compressed air is too high.

[0056] In some embodiments, see Figure 6 The introduction path 121 has dimensions in three directions of length, width and height, and its length L, width W and height H can satisfy 5>L / W>2.5 (where W=H). In this way, it can be ensured that the introduction path has sufficient length to achieve better noise reduction and silencing effect.

[0057] As an example, the minimum distance L between the outlet end of the air supply channel 10a and the slide slot 13 is minIt can be determined according to the actual situation, such as 1.5mm, 1.8mm, 2mm, 2.3mm, 2.7mm, 3mm, 3.2mm, 3.5mm, 3.7mm, 3.8mm, 4mm, 4.2mm or 4.5mm, etc.

[0058] As an example, the gas outlet end of the supplementary air passage 10 a may penetrate the inner wall of the cylinder body 10 to communicate with the compression chamber 16 .

[0059] In one embodiment of the present invention, please refer to Figure 4 The air outlet end of the air supply channel 10a is inclined toward the direction of the sliding vane groove 13.

[0060] It can be understood that by tilting the air outlet end of the air supply channel 10a toward the direction of the vane groove 13, the air injection direction a can be tilted toward the direction of the vane groove 13 through the air outlet end of the air supply channel 10a, so that the air injection direction a is closer to the vane groove 13, which can further increase the air supply amount to the compression chamber 16.

[0061] It should be noted that the angle at which the outlet end of the air supply channel 10a is inclined toward the slide slot 13 can be determined according to actual conditions, and the minimum distance L between the outlet end of the air supply channel 10a and the slide slot 13 can be ensured. min On the basis of being controlled within a range of not less than 1.5 mm, the gas outlet end of the gas supplement channel 10 a is tilted as much as possible toward the direction of the sliding vane groove 13 .

[0062] In one embodiment of the present invention, please refer to Figure 4 , the angle at which the outlet end of the air supply channel 10a is inclined toward the slide groove 13 is defined as θ, and the condition is satisfied: 10°≤θ≤20°.

[0063] It should be noted that the tail end of the one-way valve 20 extends toward the tail end of the vane slot 13, and the angle between the directions of the head and tail ends of the one-way valve 20 and the extension direction of the second through hole 152 is the angle θ at which the outlet end of the air supply channel 10a is inclined toward the vane slot 13.

[0064] It can be understood that by controlling the angle θ of the outlet end of the air supply channel 10a toward the direction of the slide groove 13 to be between 10° and 20°, the minimum distance L between the outlet end of the air supply channel 10a and the slide groove 13 can be ensured. min On the basis of being controlled within a range of not less than 1.5 mm, the gas outlet end of the gas supplement channel 10 a is tilted as much as possible toward the direction of the sliding vane groove 13 , so as to effectively increase the gas supplement amount to the compression chamber 16 .

[0065] As an example, the inclination angle of the outlet end of the air supply channel 10a toward the slide slot 13 can be determined according to actual conditions, such as 10°, 11°, 12°, 13°, 15°, 18° or 20°.

[0066] In one embodiment of the present invention, please refer to Figure 3 The air supply channel 10a includes an injection channel 14 and a connecting channel 15. The injection channel 14 is connected to the compression chamber 16 through the connecting channel 15. The injection channel 14 and at least a portion of the extended section of the connecting channel 15 are arranged at an angle. The one-way valve 20 can move toward or away from the connecting channel 15 to close or open the connecting channel 15.

[0067] It can be understood that the communication between the jet channel 14 and the compression chamber 16 is achieved by using the connecting channel 15. Since the jet channel 14 and at least part of the extended section of the connecting channel 15 are arranged at an angle, the flow path of the jet channel 14 can be changed to smoothly introduce the gas into the compression chamber 16 through the connecting channel 15. At the same time, the setting of the connecting channel 15 can lead the flow path to the end face of the cylinder body 10, so that the one-way valve 20 can be installed on the end face of the cylinder body 10, which makes it easier to install the one-way valve 20.

[0068] In actual application, the one-way valve 20 can move toward the end of the connecting channel 15 close to the jet channel 14, or toward the end of the connecting channel 15 away from the jet channel 14, or toward a position between the two ends of the connecting channel 15 to close the connecting channel 15. As long as the one-way valve 20 can close the connecting channel 15 when it moves toward the connecting channel 15, no specific limitation is made here.

[0069] In actual application, the shape and structure of the jet channel 14 may be determined according to actual conditions, for example, it may be a straight channel or an arc channel or a structure of a plurality of straight lines or a combination of straight channels, etc., and its specific structure may not be limited here.

[0070] Furthermore, the shape and structure of the connecting channel 15 may also be determined according to actual conditions. For example, it may be a straight channel or an arc channel or a structure of a plurality of straight lines or a combination of straight channels, etc. The specific structure is not limited here.

[0071] In one embodiment of the present invention, please refer to Figure 1 , Figure 3 The vane groove 13 and the jet channel 14 are both extended along the radial direction of the cylinder body 10, and the angle between the vane groove 13 and the jet channel 14 is defined as α, which satisfies the condition: α<30°.

[0072] It can be understood that the closer the jet channel 14 is to the vane groove 13, the greater the amount of air supplied to the compression chamber 16. If the angle between the vane groove 13 and the jet channel 14 is too large, the amount of air supplied from the jet channel 14 will be affected. Therefore, controlling the angle between the vane groove 13 and the jet channel 14 to be less than 30° can ensure that the jet channel 14 has sufficient air supply to the compression chamber 16.

[0073] It should be noted that the angle between the vane groove 13 and the jet passage 14 refers to the angle between the central axis of the vane groove 13 and the central axis of the jet passage 14 .

[0074] As an example, the angle α between the vane groove 13 and the jet channel 14 can be determined according to actual conditions, such as 30°, 29°, 28.5°, 27.5°, 26°, 25°, 24°, 22.5°, 20°, 18° or 16.5°, etc.

[0075] It should be noted that the input force of the compressor during high-speed rotation may vary with the change of the angle α between the vane groove 13 and the jet passage 14, see Figure 7 ,from Figure 7 It can be seen that when the angle α between the vane groove 13 and the jet channel 14 is 30°, the input force of the compressor during high-speed rotation is small, so the angle α between the vane groove 13 and the jet channel 14 is designed to be 30°, which can effectively reduce the input force of the compressor during high-speed rotation.

[0076] Further, the included angle α between the vane groove 13 and the jet passage 14 may satisfy the condition: 18°≤α≤22.5°.

[0077] It can be understood that when the cylinder 100 is applied to a compressor, the roller of the compressor can inhale gas through the suction port 11 during the rolling process. After the suction is completed, the roller of the compressor stops working. At this time, the roller closes the suction port 11. Since the angle between the suction port 11 and the vane groove 13 is fixed, and the suction port 11 is usually arranged close to the vane groove 13, if the angle between the vane groove 13 and the jet channel 14 is too small, the jet channel 14 and the connecting channel 15 will be closer to the suction port 11, so that the roller of the compressor will be closer to the jet channel 14 and the connecting channel 15. Then, the gas ejected from the jet channel 14 and the connecting channel 15 will collide with the outer wall of the roller with a large impact force and generate a large reaction force, so that the gas in the compression chamber 16 passes through the connecting channel 15 and leaks from the jet channel 14.

[0078] As an example, the angle α between the vane groove 13 and the jet channel 14 can be determined according to actual conditions, such as 18°, 18.7°, 19.5°, 20°, 20.5°, 21°, 21.5°, 22° or 22.5°, etc.

[0079] In some embodiments, see Figure 6 In order to achieve a better noise reduction effect in the resonance chamber 122 while ensuring that the air supply channel 10a has sufficient air supply to the compression chamber 16, the angle between the slide slot 13 and the resonance chamber 122 is defined as β, which satisfies the condition: β<30°, such as 30°, 29°, 28.5°, 27.5°, 26°, 25°, 24°, 22.5°, 20°, 18° or 16.5°, etc. For further information, please refer to Figure 1 , Figure 6 , the ratio of α to β can be controlled between 1.5 and 2, such as 1.5, 1.6, 1.7, 1.8, 1.9 or 2, etc.

[0080] In one embodiment of the present invention, please refer to Figure 1 , Figure 3 , one end surface of the cylinder body 10 is defined as a projection surface, and the projection of the connecting passage 15 on the projection surface is located between the projections of the vane groove 13 and the jet passage 14 on the projection surface.

[0081] It can be understood that by making the projection of the connecting channel 15 on the projection plane located between the projections of the vane groove 13 and the jet channel 14 on the projection plane, that is, the gas ejected from the jet channel 14 can pass through the connecting channel 15 to shift the jet direction a toward the direction of the vane groove 13, so that the jet direction a is closer to the vane groove 13, thereby increasing the amount of air supplied to the compression chamber 16.

[0082] It should be noted that the projection on the projection plane refers to the projection projected onto the projection plane along the axial direction of the cylinder body 10 .

[0083] In actual application, the projection of the communication channel 15 on the projection plane may partially overlap with the projection of the jet channel 14 on the projection plane, or may not overlap at all.

[0084] In one embodiment of the present invention, please refer to Figure 4 , Figure 5 The connecting passage 15 includes a first through hole 151 and a second through hole 152 that are connected to each other. The first through hole 151 is extended along the axial direction of the cylinder body 10 and is arranged at an angle to the extension direction of the second through hole 152. The first through hole 151 is connected to the injection passage 14, and the second through hole 152 is connected to the compression chamber 16. The one-way valve 20 can move toward or away from the first through hole 151 to close or open the first through hole 151.

[0085] It can be understood that by adopting the axially extending first through hole 151 to guide the gas flowing through the injection channel 14 to the second channel, and then spraying it to the compression chamber 16 through the second through hole 152, the gas can be smoothly guided to the compression chamber 16. At the same time, since the first through hole 151 is arranged along the axial direction of the cylinder body 10, the flow path can be guided to the end surface of the cylinder body 10. In this way, the one-way valve 20 can be installed on the end surface of the cylinder body 10, which makes it easier to install the one-way valve 20.

[0086] Of course, in other embodiments, the one-way valve 20 may also move toward or away from the second through hole 152 to close or open the second through hole 152 , so that the connecting channel 15 may also be closed or opened under the movement of the one-way valve 20 .

[0087] In one embodiment of the present invention, please refer to Figure 5 , the cross-sectional size of the communication channel 15 is smaller than the cross-sectional size of the jet channel 14 .

[0088] It can be understood that by making the cross-sectional size of the connecting channel 15 smaller than the cross-sectional size of the jet channel 14, when the gas is sprayed from the jet channel 14 to the connecting channel 15, the flow rate of the gas can be increased due to the reduction in the cross-sectional size of the flow path, so that the gas can be sprayed to the compression chamber 16 at a higher flow rate, which can not only increase the gas replenishment speed, but also generate a greater air pressure to quickly drive the one-way valve 20 to open the connecting channel 15.

[0089] As an example, the cross-sectional shape of the connecting channel 15 can be determined according to actual conditions, such as circular, elliptical, rectangular, triangular, etc.; similarly, the cross-sectional shape of the jet channel 14 can also be determined according to actual conditions, such as circular, elliptical, rectangular, triangular, etc.

[0090] In some embodiments, when the cross-sectional shapes of the communication channel 15 and the jet channel 14 are both circular, the inner diameter of the communication channel 15 is smaller than the inner diameter of the jet channel 14 .

[0091] In actual application, the cross-sectional dimensions of the communication channel 15 at various positions may be the same or different; similarly, the cross-sectional dimensions of the jet channel 14 at various positions may be the same or different.

[0092] In one embodiment of the present invention, please refer to Figure 5 The jet channel 14 includes a first jet section 141 and a second jet section 142 that are connected to each other. The second jet section 142 is connected to the connecting channel 15 , and a cross-sectional size of the second jet section 142 is smaller than a cross-sectional size of the first jet section 141 .

[0093] It can be understood that in the process of gas being sprayed from the first jet section 141 to the second jet section 142, the cross-sectional size of the flow path can also be reduced, so that the gas can be sprayed to the connecting channel 15 at a higher flow rate, which can also increase the gas replenishment speed and generate a greater air pressure to quickly drive the one-way valve 20 to open the connecting channel 15.

[0094] In actual application, the cross-sectional dimensions of the first jet section 141 at various positions may be the same or different; similarly, the cross-sectional dimensions of the second jet section 142 at various positions may be the same or different.

[0095] In one embodiment of the present invention, please refer to Figure 5 In the direction from the first jet section 141 to the second jet section 142 , the cross-sectional size of the first jet section 141 gradually decreases.

[0096] It can be understood that the air supply speed can be further increased by adopting a gradual design for the cross-sectional size of the first air injection section 141 .

[0097] In one embodiment of the present invention, please refer to Figure 3 A recessed groove 17 is provided on one end surface of the cylinder body 10 , and a one-way valve 20 is provided in the recessed groove 17 .

[0098] It can be understood that by setting the one-way valve 20 in the groove 17, the installation reliability of the one-way valve 20 can be improved. In addition, when the cylinder 100 is used in a compressor, a bearing will be provided on the end face of the cylinder 100. Therefore, setting the one-way valve 20 in the groove 17 can also prevent the one-way valve 20 from protruding on the end face of the cylinder body 10 and affecting the contact reliability between the cylinder 100 and the bearings of the compressor.

[0099] In one embodiment of the present invention, please refer to Figure 1 , Figure 2 The one-way valve 20 is a one-way valve plate, a fixed end 21 of the one-way valve plate is close to the outer wall of the cylinder body 10 and is connected to the cylinder body 10, and a free end 22 of the one-way valve plate extends toward the inner wall of the cylinder body 10 and can move toward or away from the air supply channel 10a to close or open the air supply channel 10a.

[0100] It can be understood that by making the fixed end 21 of the one-way valve plate close to the outer wall of the cylinder body 10, it is easier to fix the fixed end 21 to the cylinder body 10, and by making the free end 22 of the one-way valve plate close to the inner wall of the cylinder body 10, the distance between the free end 22 and the fixed end 21 can be made longer, so that the free end 22 can better move toward or away from the air supply channel 10a to smoothly close or open the air supply channel 10a.

[0101] In actual application, one end of the one-way valve is fixed and the other end is freely extended. It can be understood that when the one-way valve is subjected to the action of the jet, the free end 22 of the one-way valve moves away from the air supply channel 10a. At this time, the free end 22 of the one-way valve opens the air supply channel 10a. At the same time, after the jet ends, the free end 22 of the one-way valve returns to its original position to close the air supply channel 10a.

[0102] As an example, the one-way valve plate can be a spring plate structure.

[0103] The fixed end 21 of the one-way valve plate can be fixedly connected according to actual conditions, and specifically, the fixed end 21 of the one-way valve plate can be fixedly connected to the cylinder body 10 by screw connection, welding, bonding, clamping, etc. In some embodiments, in order to facilitate the disassembly and assembly of the one-way valve plate, a first connection hole can be opened at the fixed end 21 of the one-way valve plate, and a second connection hole can be opened on the cylinder body 10, and then screws or other connection structures are used to cooperate with the first connection hole and the second connection hole, so that the fixed end 21 of the one-way valve plate can be connected to the cylinder body 10.

[0104] The utility model also proposes a compressor, which includes a cylinder 100. The specific structure of the cylinder 100 refers to the above embodiment. Since the compressor adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the compressor can be a rotary compressor or a scroll compressor, etc. In addition, the compressor can be a single-cylinder compressor, or a double-cylinder or multi-cylinder compressor.

[0105] The utility model also proposes a refrigeration device, which includes a compressor. The specific structure of the compressor refers to the above embodiment. Since the refrigeration device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The refrigeration device can be an air conditioner, a refrigerator or a cold chain vehicle.

[0106] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cylinder, characterized in that: include: The cylinder body is provided with an air intake port, an air exhaust port, a vane groove, an air supply channel and a compression chamber, wherein the air intake port, the air exhaust port, the vane groove and the air supply channel are all connected to the compression chamber, and the air intake port and the air supply channel are respectively arranged on two opposite sides of the vane groove; a one-way valve, movable toward or away from the gas supplement passage to close or open the gas supplement passage; The minimum distance between the outlet end of the air supply channel and the slide slot is L min , then the condition is met: L min ≥1.5mm.

2. The cylinder according to claim 1, characterized in that The air outlet end of the air supplement channel is inclined toward the direction of the slide slot.

3. The cylinder according to claim 2, characterized in that The angle at which the outlet end of the air supply channel is inclined toward the sliding vane groove is defined as θ, and the condition is satisfied: 10°≤θ≤20°.

4. The cylinder according to any one of claims 1 to 3, characterized in that The air supply channel includes an injection channel and a connecting channel, the injection channel is connected to the compression chamber through the connecting channel, the injection channel is arranged at an angle with at least a portion of the extended section of the connecting channel, and the one-way valve can move toward or away from the connecting channel to close or open the connecting channel.

5. The cylinder according to claim 4, characterized in that The vane groove and the jet channel are both extended along the radial direction of the cylinder body, and the included angle between the vane groove and the jet channel is defined as α, which satisfies the condition: α<30°.

6. The cylinder according to claim 5, characterized in that 18°≤α≤22.5°。 7. The cylinder according to claim 4, characterized in that One end surface of the cylinder body is defined as a projection surface, and the projection of the communication channel on the projection surface is located between the projections of the vane groove and the injection channel on the projection surface.

8. The cylinder according to claim 7, characterized in that The connecting passage includes a first through hole and a second through hole connected to each other, the first through hole is extended along the axial direction of the cylinder body and is arranged at an angle with the extension direction of the second through hole, the first through hole is connected to the injection passage, and the second through hole is connected to the compression chamber, and the one-way valve can move toward or away from the first through hole to close or open the first through hole.

9. The cylinder according to claim 4, characterized in that The cross-sectional size of the communication passage is smaller than the cross-sectional size of the jet passage.

10. The cylinder according to claim 4, characterized in that The jet channel comprises a first jet section and a second jet section which are connected to each other. The second jet section is connected to the connecting channel, and a cross-sectional dimension of the second jet section is smaller than a cross-sectional dimension of the first jet section.

11. The cylinder according to claim 10, characterized in that In a direction from the first jet section to the second jet section, a cross-sectional size of the first jet section gradually decreases.

12. The cylinder according to any one of claims 1 to 3, characterized in that A sink groove is provided on one end surface of the cylinder body, and the one-way valve is arranged in the sink groove.

13. The cylinder according to claim 12, characterized in that The one-way valve is a one-way valve plate, the fixed end of which is close to the outer wall of the cylinder body and connected to the cylinder body, and the free end of which extends toward the inner wall of the cylinder body and can move toward or away from the air supply channel.

14. A compressor, characterized in that: Comprising the cylinder as claimed in any one of claims 1 to 13.

15. A refrigeration device, characterized in that: Comprising the compressor of claim 14.

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