An oil path adjusting mechanism, a compressor and an air conditioner

Abstract

This invention provides an oil circuit regulating mechanism, a compressor, and an air conditioner. The oil circuit regulating mechanism includes a crankshaft with an oil supply channel, and an regulating component disposed within the oil supply channel. The regulating component includes multiple baffles connected in sequence, each baffle having a folded first position and a sequentially unfolded second position. The baffles are capable of switching between the first and second positions under centrifugal force. According to this invention, the technical problem of poor compressor reliability caused by the compressor's inability to adjust the oil supply in real time can be solved.

Description

Technical Field

[0001] This invention belongs to the field of air conditioner technology, specifically relating to an oil circuit regulating mechanism, a compressor, and an air conditioner. Background Technology

[0002] To meet the demands of the times, the performance requirements for compressors in air conditioning systems are becoming more stringent. Currently, compressors experience unstable oil supply under different operating conditions.

[0003] Generally, as the operating frequency of a compressor increases, the crankshaft speed of the compressor will rise, leading to an increase in the oil supply from the oil supply components (oil pump, oil guide vanes). Therefore, if the oil supply from the oil supply components meets the demand under low-frequency conditions, it will result in excessive oil supply under high-frequency conditions, causing problems such as decreased cooling capacity and increased oil circulation rate; conversely, if it meets the demand under high-frequency conditions, it will result in insufficient oil supply under low-frequency conditions, causing problems such as friction loss and poor operational reliability.

[0004] Because existing compressors cannot adjust the oil supply in real time, resulting in high frictional losses and poor operational reliability, this invention researches and designs an oil circuit adjustment mechanism, a compressor, and an air conditioner. Summary of the Invention

[0005] Therefore, the present invention provides an oil circuit regulating mechanism, a compressor, and an air conditioner, which can solve the technical problem in the prior art that the compressor cannot adjust the oil supply in real time, resulting in poor compressor reliability.

[0006] To solve the above problems, the present invention provides an oil circuit adjustment mechanism, comprising: a crankshaft, wherein an oil supply channel is provided on the crankshaft, and an adjustment component is provided in the oil supply channel;

[0007] The adjustment assembly includes multiple baffles connected in sequence. The multiple baffles have a first folded position and a second unfolded position. The baffles can switch between the first position and the second position under the action of centrifugal force.

[0008] In some embodiments, the adjusting assembly includes a guide rod with both ends connected to the inner wall of the oil supply channel, and a baffle is disposed on the guide rod.

[0009] In some embodiments, the guide rod is arc-shaped, with the opening of the arc facing away from the oil sump of the compressor.

[0010] In some embodiments, the guide rod is provided with a first mounting hole, which is located in the middle of the guide rod along its length. A mounting shaft is provided in the first mounting hole, and a base is provided at one end of the mounting shaft facing away from the guide rod. A through hole is provided on one side of the base, and a connecting shaft is provided in the through hole.

[0011] The plurality of baffles includes two sets of baffles, the base is located between the two sets of baffles, and the baffles are connected to the base via the connecting shaft.

[0012] In some embodiments, the guide rod is provided with two counterweights, each counterweight having a third mounting hole through which the guide rod passes. A plurality of baffles are located between the two counterweights, with the outermost baffle connected to the counterweight.

[0013] In some embodiments, the counterweight is provided with a fourth mounting hole, the central axis of the fourth mounting hole is perpendicular to the central axis of the third mounting hole, and a connector is provided on the fourth mounting hole. The baffle and the counterweight are connected through the connector and the fourth mounting hole.

[0014] In some embodiments, a groove is provided on one side of the baffle, and a protrusion is provided on the other side of the baffle; the groove penetrates the baffle along the thickness direction; the groove matches the protrusion, and two adjacent baffles are connected by the groove and the protrusion.

[0015] In some embodiments, second mounting holes are provided on the two inner sidewalls of the groove and at both ends of the protrusion, and connecting rods are provided on the second mounting holes. The protrusion and the groove are connected through the second mounting holes and the connecting rods.

[0016] The present invention also provides a compressor that includes the aforementioned oil circuit regulating mechanism.

[0017] The present invention also provides an air conditioner comprising the aforementioned compressor.

[0018] The oil circuit regulating mechanism, compressor, and air conditioner provided by this invention have the following beneficial effects:

[0019] When the crankshaft rotates, the baffles switch between the first position and the second position under the action of centrifugal force. When the baffles are in the first position, multiple baffles fold together, resulting in a large flow area in the oil supply channel. When the baffles are in the second position, multiple baffles unfold sequentially, blocking the flow area of ​​the oil supply channel and reducing it. Due to the change in the compressor's operating frequency, the crankshaft speed also changes. Therefore, the baffles can move between the first and second positions according to the crankshaft speed, thereby adjusting the flow area of ​​the oil supply channel and controlling the oil supply of the crankshaft. This achieves adaptive adjustment of the oil passage flow area corresponding to different operating conditions, making the oil supply more reasonable for different operating conditions. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the adjusting component in the first position of the oil circuit adjusting mechanism of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the adjusting component in the first position of the oil circuit adjusting mechanism of the present invention. Figure 2 ;

[0023] Figure 3 This is an exploded view of the adjusting component in the oil circuit adjusting mechanism of the present invention at the first position;

[0024] Figure 4 This is a schematic diagram of the structure of the adjusting component in the second position of the oil circuit adjusting mechanism of the present invention. Figure 1 ;

[0025] Figure 5 This is a schematic diagram of the structure of the adjusting component in the second position of the oil circuit adjusting mechanism of the present invention. Figure 2 ;

[0026] Figure 6 This is an exploded view of the adjusting component in the oil circuit adjusting mechanism of the present invention at the second position;

[0027] Figure 7 This is a schematic diagram of the guide rod in the oil circuit adjustment mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the baffle in the oil circuit regulating mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram of the counterweight block in the oil circuit adjustment mechanism of the present invention;

[0030] Figure 10 This is a schematic diagram of the base structure in the oil circuit adjustment mechanism of the present invention.

[0031] The attached figures are labeled as follows:

[0032] 1. Crankshaft; 2. Guide rod; 3. Counterweight; 4. Third mounting hole; 5. Fourth mounting hole; 6. Baffle; 7. Groove; 8. Protrusion; 9. Second mounting hole; 10. First mounting hole; 11. Base; 12. Mounting shaft; 13. Connecting shaft; 14. Housing; 15. Drive component; 16. Pump body; 17. Cover; 18. Oil sump; 19. Bracket; 20. Support ring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0035] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0037] See also Figure 1-10 As shown, according to an embodiment of the present invention, an oil circuit adjustment mechanism is provided, including: a crankshaft 1, wherein an oil supply channel is provided on the crankshaft 1, and an adjustment component is provided in the oil supply channel;

[0038] The adjustment assembly includes a plurality of baffles 6 connected in sequence. The plurality of baffles 6 have a first position folded and a second position unfolded in sequence. The baffles 6 can switch between the first position and the second position under the action of centrifugal force.

[0039] In this technical solution, when the crankshaft 1 rotates, the baffle 6 switches between the first position and the second position under the action of centrifugal force. When the baffle 6 is in the first position, multiple baffles 6 fold together, resulting in a large flow area in the oil supply channel. When the baffle 6 is in the second position, multiple baffles 6 unfold sequentially, blocking the flow area of ​​the oil supply channel and reducing it. Due to the change in the operating frequency of the compressor, the speed of the crankshaft 1 also changes. Therefore, the baffle 6 can move between the first position and the second position according to the speed of the crankshaft 1, thereby adjusting the flow area of ​​the oil supply channel and controlling the oil supply of the crankshaft 1. This achieves adaptive adjustment of the oil passage flow area corresponding to different operating conditions, making the oil supply more reasonable for different operating conditions.

[0040] In some embodiments, the adjusting assembly includes a guide rod 2, the two ends of which are connected to the inner wall of the oil supply channel, and the baffle 6 is disposed on the guide rod 2.

[0041] In this technical solution, the guide rod 2 guides the baffle 6, allowing the baffle 6 to move between the first and second positions along the guide rod 2, thereby adjusting the flow area of ​​the oil supply channel.

[0042] In some embodiments, the guide rod 2 is arc-shaped, with the opening of the arc facing away from the oil sump of the compressor.

[0043] In this technical solution, the guide rod 2 is arc-shaped, with its opening facing away from the oil sump of the compressor. This allows the baffle 6 to move under the influence of gravity, making it easier for the baffle 6 to switch between the first and second positions, thereby adjusting the flow area of ​​the oil supply channel. Both ends of the guide rod 2 are connected to the inner wall of the oil supply channel.

[0044] It should be noted that, in order to match the oil supply channel, multiple baffles 6 can be of different lengths, or the ends of the baffles 6 can be designed as arcs, as long as the flow area of ​​the oil supply channel is met. Furthermore, the baffles 6 only adjust the flow area of ​​the oil supply channel and cannot completely close the oil supply channel.

[0045] In some embodiments, the guide rod 2 is provided with a first mounting hole 10. Along the length direction of the guide rod 2, the first mounting hole 10 is located in the middle of the guide rod 2. A mounting shaft 11 is provided in the first mounting hole 10. A base 12 is provided at one end of the mounting shaft 11 facing away from the guide rod 2. A through hole is provided on one side of the base 12. A connecting shaft 13 is provided in the through hole.

[0046] The plurality of baffles 6 include two sets of baffles 6, the base 12 is located between the two sets of baffles 6, and the baffles 6 are connected to the base 12 via the connecting shaft 13.

[0047] In this technical solution, a base 12 is set in the middle of the guide rod 2. The base 12 is located on the side of the guide rod 2 facing away from the oil tank, and the multiple baffles 6 are divided into two groups. A through hole is set on the base 12, and two connecting shafts 13 are set in the through hole. One of the baffles 6 in the two groups of baffles 6 is movably connected to the connecting shaft 13. The baffle 6 can rotate around the connecting shaft 13, which makes it easier for the baffle 6 to unfold and retract.

[0048] Along the extension direction of the crankshaft, two through holes can also be provided on the base 12, and a connecting shaft 13 can be provided in both through holes. The baffles 6 on both sides of the base 12 are connected to the connecting shaft 13. Of course, other ways to achieve the rotatable connection between the base 12 and the baffles 6 on both sides are also acceptable.

[0049] In some embodiments, the guide rod 2 is provided with two counterweights 3, and the counterweights 3 are provided with a third mounting hole 4. The guide rod 2 passes through the third mounting hole 4, and a plurality of baffles 6 are located between the two counterweights 3. The outermost baffle 6 is connected to the counterweights 3.

[0050] In this technical solution, counterweights 3 are installed at both ends of the baffle 6. These counterweights 3 are connected to the baffle 6 and can move along the guide rod 2. This allows the two counterweights 3 to expand or contract the baffle 6 under centrifugal force. Since the guide rod 2 is arc-shaped with its opening facing away from the compressor's oil sump, when the baffle 6 contracts, the two counterweights 3 move towards each other along the guide rod 2 under gravity, thus contracting the baffle 6 and making the adjustment of the oil supply channel's flow area more convenient. Of course, other methods of achieving a rotatable connection between the counterweights 3 and the baffle 6 are also acceptable. The shape of the counterweights 3 is not limited.

[0051] In some embodiments, the counterweight 3 is provided with a fourth mounting hole 5, the central axis of the fourth mounting hole 5 is perpendicular to the central axis of the third mounting hole 4, a connector is provided on the fourth mounting hole 5, and the baffle 6 is connected to the counterweight 3 through the connector and the fourth mounting hole 5.

[0052] In this technical solution, the connecting component can be a rotating shaft. By setting the rotating shaft in the fourth mounting hole 5 and connecting the rotating shaft to the baffle 6, the counterweight 3 and the baffle 6 can be connected. Since the contraction direction of the baffle 6 is perpendicular to the rotation axis of the baffle 6, the central axis of the fourth mounting hole 5 needs to be perpendicular to the central axis of the third mounting hole 4 to satisfy the contraction and expansion of the baffle 6.

[0053] In some embodiments, a groove 7 is provided on one side of the baffle 6, and a protrusion 8 is provided on the other side of the baffle 6; the groove 7 penetrates the baffle 6 along the thickness direction of the baffle 6; the groove 7 matches the protrusion 8, and two adjacent baffles 6 are connected by the groove 7 and the protrusion 8.

[0054] In this technical solution, see [reference] Figure 8 As shown, between two adjacent baffles 6, the protrusion 8 is located in the groove 7, thereby realizing the rotation between the two adjacent baffles 6. Of course, other structures that realize the expansion and contraction of multiple baffles 6 are also possible.

[0055] In some embodiments, second mounting holes 9 are provided on the two inner sidewalls of the groove 7 and at both ends of the protrusion 8. A connecting rod is provided on the second mounting hole 9, and the protrusion 8 is connected to the groove 7 through the second mounting hole 9 and the connecting rod.

[0056] In this technical solution, see [reference] Figure 8 As shown, second mounting holes 9 are provided at both ends of the protrusion 8. The second mounting holes 9 on the protrusion 8 can penetrate the protrusion 8 or not. When penetrating the protrusion 8, only one connecting rod is needed. When not penetrating the protrusion 8, a connecting rod needs to be provided for each second mounting hole 9. When the protrusion 8 is located in the groove 9, the opposite end of the protrusion 8 is rotatably connected to the inner wall of the groove 9 through the second mounting hole 9 and the connecting rod, thereby realizing the contraction and expansion of the baffle 6. When the baffle 6 is connected to the counterweight 3, it is also connected to the fourth mounting hole 5 through the second mounting hole 9 of the groove by a connector. When the baffle 6 is connected to the base 12, the protrusion 8 is inserted into the through hole and connected to the connecting shaft 13 through the second mounting hole 9.

[0057] In some implementations, the central base is constructed entirely of a cylindrical rod connected to a thick plate. The cylindrical rod is used for mounting with a guide rail; two semi-cylindrical shafts are slotted along the center line of the thick plate, serving as the rotation shafts for the innermost oil-blocking rotating plate.

[0058] The guide rod is composed of a single cylindrical rod with vertically oriented planes at both ends. A circular hole is located in the middle of the cylindrical rod to mate with the central base; the planes at both ends of the cylindrical rod fit snugly against the inner wall of the oil passage.

[0059] The baffle is constructed from a single flat plate. One side of the plate has a raised boss, while the other side is recessed. Both sides have through holes for rotating shafts to mate with rotating shaft components. The raised and recessed design of the flat plate is intended to provide space for the rotating plate to rotate, and can also be used for other clearance designs.

[0060] The counterweight is composed of a triangular tension block. The block has a mating hole for sliding with a guide rail, and another mating hole for the outer oil-blocking rotating plate and its rotating components to rotate.

[0061] The crankshaft is a long shaft with an inner bore and a large cylindrical opening at its tail end for mounting the oil pump drive and oil circuit adjustment mechanism. The tail end of the crankshaft is fixed by a lower bracket, which is in turn fixed by a lower support ring, which is welded to the housing.

[0062] The oil circuit adjustment mechanism is placed inside the crankshaft oil circuit. The position of the counterweight is adjusted by the crankshaft speed. The counterweight drives the baffle to expand or contract, thereby controlling the oil circuit flow area and achieving the purpose of controlling the oil supply flow.

[0063] At lower crankshaft speeds, the counterweight is positioned at the lowest point on the guide rail, and the entire mechanism is in a retracted state. At this speed, the oil passage area is at its maximum, and the oil pump supply precisely meets the compressor's operational needs. As the crankshaft speed increases, the oil pump's oil supply increases with the speed. Simultaneously, the counterweight, influenced by centrifugal force, balances the effects of gravity and friction, sliding outwards along the guide rail. During this sliding process, the baffle rotates and unfolds, reducing the oil passage area and balancing the impact of the oil pump's supply, thus maintaining a stable overall oil supply.

[0064] The oil circuit regulating mechanism of this invention changes the flow area of ​​the crankshaft oil circuit according to the compressor's rotational speed, matching the corresponding oil supply flow to different compressor operating conditions, thereby achieving better compressor performance and optimizing the problem of unstable oil supply. It can adaptively adjust the oil circuit flow area corresponding to different operating conditions, matching the corresponding oil supply flow to the compressor under different operating conditions. This makes the oil supply more reasonable for different operating conditions.

[0065] The present invention also provides a compressor including the above-described oil circuit regulating mechanism.

[0066] In this technical solution, the compressor includes a housing 14, a cover 17 is provided on the housing 14, a crankshaft 1 is located inside the housing 14, and an oil sump 18 is formed inside the housing 14 near the cover 17. A drive unit 15 and a pump body 16 are sequentially arranged at the end of the crankshaft 1 facing the oil sump. The pump body 16 extends into the oil sump 18. The crankshaft 1 and the housing 14 are connected by a bracket 19 and a support ring 20. The pump body 16 can pump the oil in the oil sump 18 into the oil supply channel. (See also...) Figure 1 and Figure 2 As shown, the oil supply channel has two sections. The inner diameter of the section closer to the oil sump 18 is larger than that of the section farther from the oil sump 18. The adjusting component is installed in the section closer to the oil sump 18. The section closer to the oil sump 18 is connected to the pump body 16. The adjusting component is located between the drive component 15 and the section farther from the oil sump 18.

[0067] The present invention also provides an air conditioner, including the compressor described above.

[0068] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An oil circuit regulating mechanism, characterized in that: include: A crankshaft (1) is provided with an oil supply channel, and an adjustment component is provided in the oil supply channel; The adjustment assembly includes a plurality of baffles (6) connected in sequence. The plurality of baffles (6) have a first position folded and a second position unfolded in sequence. The baffles (6) can switch between the first position and the second position under the action of centrifugal force. The adjustment assembly includes a guide rod (2), the two ends of which are connected to the inner wall of the oil supply channel, and the baffle (6) is disposed on the guide rod (2); The guide rod (2) is arc-shaped, and the opening of the arc faces away from the oil sump of the compressor.

2. The oil circuit regulating mechanism according to claim 1, characterized in that: The guide rod (2) is provided with a first mounting hole (10). Along the length direction of the guide rod (2), the first mounting hole (10) is located in the middle of the guide rod (2). A mounting shaft (11) is provided in the first mounting hole (10). A base (12) is provided at one end of the mounting shaft (11) facing away from the guide rod (2). A through hole is provided on one side of the base (12). A connecting shaft (13) is provided in the through hole. The plurality of baffles (6) include two sets of baffles (6), the base (12) is located between the two sets of baffles (6), and the baffles (6) are connected to the base (12) through the connecting shaft (13).

3. The oil circuit regulating mechanism according to claim 1, characterized in that: Two counterweights (3) are provided on the guide rod (2), and a third mounting hole (4) is provided on the counterweight (3). The guide rod (2) passes through the third mounting hole (4). Multiple baffles (6) are located between the two counterweights (3), and the outermost baffle (6) is connected to the counterweight (3).

4. The oil circuit regulating mechanism according to claim 3, characterized in that: The counterweight (3) is provided with a fourth mounting hole (5), the central axis of the fourth mounting hole (5) is perpendicular to the central axis of the third mounting hole (4), a connector is provided on the fourth mounting hole (5), and the baffle (6) is connected to the counterweight (3) through the connector and the fourth mounting hole (5).

5. The oil circuit regulating mechanism according to claim 1, characterized in that: A groove (7) is provided on one side of the baffle (6), and a protrusion (8) is provided on the other side of the baffle (6); the groove (7) penetrates the baffle (6) along the thickness direction of the baffle (6); the groove (7) matches the protrusion (8), and two adjacent baffles (6) are connected by the groove (7) and the protrusion (8).

6. The oil circuit regulating mechanism according to claim 5, characterized in that: The inner walls of the groove (7) and the two ends of the protrusion (8) are provided with second mounting holes (9), and connecting rods are provided on the second mounting holes (9). The protrusion (8) and the groove (7) are connected through the second mounting holes (9) and the connecting rods.

7. A compressor, characterized in that, Includes the oil circuit adjustment mechanism as described in any one of claims 1 to 6.

8. An air conditioner, characterized in that, Includes the compressor described in claim 7.

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