Air cylinder seat of wing-shaped structure for refrigeration compressor

Abstract

The utility model discloses a wing-shaped structure air cylinder seat for a refrigeration compressor, and relates to the technical field of refrigeration compressors. Comprising a base body and a cylinder head used for being externally connected with a cylinder accessory, a transition boss is arranged on the upper surface, located on one side of the cylinder head, of the base body, the front side face of the transition boss is attached to the cylinder head, a piston channel is formed in the cylinder head, and the piston channel extends towards one side of the base body and penetrates through the transition boss. A receding notch communicated with the top of the piston channel is formed in the upper surface of the transition boss, the rear side of the receding notch is open, the piston is slidably arranged in the piston channel in a sleeved mode, an arch-shaped baffle is arranged on the upper surface of the transition boss, a receding space is formed between the arch-shaped baffle and the receding notch, and a fixed baffle structure is arranged on the front side of the arch-shaped baffle. A movable baffle structure is arranged on the rear side of the arch-shaped baffle, and the fixed baffle structure and the movable baffle structure are both located between the base body and the external air cylinder. And the oil circulation capacity of the compressor can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration compressor technology, specifically to an airfoil structure cylinder base for a refrigeration compressor. Background Technology

[0002] The refrigeration compressor is one of the core components of a refrigeration system. Its main function is to compress low-pressure gaseous refrigerant into high-pressure gas, propelling the refrigerant through the system to transfer heat and lower the temperature. It plays a vital role in refrigeration equipment such as air conditioners, refrigerators, cold storage facilities, and cold chain transportation.

[0003] In the prior art, a refrigeration compressor airfoil structure cylinder seat with publication number CN111255657A includes a base and a cylinder head for connecting external cylinder accessories. The cylinder head is connected to the base. The cylinder seat also includes an airfoil block connected to the cylinder head and located between the base and the external cylinder. Because an airfoil block is provided between the base and the external cylinder, oil splashing from the high-speed crankshaft towards the cylinder head is blocked by the airfoil block. The blocked oil flows along the bottom of the airfoil block to the left and right sides. A front baffle is provided on the connecting rod 13, with the top surface of the front baffle at the same height as the top surface of the airfoil block. This effectively reduces the amount of oil splashed into the cylinder assembly area and the junction of the base and cylinder head, preventing uncontrolled oil circulation.

[0004] However, in the existing technology, the design of the front baffle has relatively low stability under high-speed movement. Utility Model Content

[0005] To address the aforementioned technical problems, this application solves the issue that the design of the front baffle in the prior art has relatively low stability under high-speed motion.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a refrigeration compressor airfoil structure cylinder seat, comprising a base and a cylinder head for connecting external cylinder accessories, wherein the front side of the base is connected to the cylinder head, a shaft hole is provided at the middle position of the base, a drive shaft on the lower side of a crankshaft is rotatably sleeved in the shaft hole, a connecting rod is connected to the drive shaft on the upper side of the crankshaft, and the connecting rod is connected to a piston obliquely below the front side of the connecting rod through a piston pin.

[0007] A transition boss is provided on the upper surface of the base body on one side of the cylinder head. The front side of the transition boss fits against the cylinder head. A piston channel is provided on the cylinder head, extending towards the base body and penetrating the transition boss. A relief notch is provided on the upper surface of the transition boss, communicating with the top of the piston channel, and the rear side of the relief notch is open. The piston is slidably fitted inside the piston channel.

[0008] An arched baffle is provided on the upper surface of the transition boss, and a clearance space is formed between the arched baffle and the clearance notch. A fixed baffle structure is provided on the front side of the arched baffle, and a movable baffle structure is provided on the rear side of the arched baffle. Both the fixed baffle structure and the movable baffle structure are located between the base and the external cylinder.

[0009] To better realize this utility model, the fixed baffle structure further includes an airfoil block, which is disposed on the arc-shaped surface on the upper front side of the arched baffle, and the front side of the airfoil block is in contact with the rear side of the cylinder head.

[0010] To better realize this utility model, the movable baffle structure further includes a movable baffle, a spring, a slide groove, a slide block, a guide seat, and a slide rod. A cylindrical slide block is provided at the bottom center of the movable baffle, and a slide groove is formed on the upper surface of the connecting rod along the front and rear directions. The slide block is slidably disposed within the slide groove.

[0011] A pair of symmetrically arranged guide seats are hinged to the arc-shaped surface on the upper rear side of the arched baffle, and the guide seats are provided with assembly channels.

[0012] The slide rod consists of two rods. The front side of the movable baffle is hinged to one end of the slide rod. The slide rod slides through the assembly channel of the guide seat. A limit protrusion is provided at the other end of the slide rod. A spring is sleeved on the rod body of the slide rod located between the movable baffle and the guide seat.

[0013] To better realize this utility model, further, strip-shaped grooves are provided on the left and right side walls of the slide groove, and annular protrusions matching the strip-shaped grooves are provided on the outer peripheral wall of the slide block. The annular protrusions and the strip-shaped grooves roll and make line contact with each other.

[0014] To better realize this utility model, the movable baffle is further defined as an arc-shaped plate, and the left and right sides of the bottom of the arc-shaped plate extend toward the upper surface of the base, so that the bottom of the arc-shaped plate is arched.

[0015] To better realize this utility model, the concave surface of the arc-shaped plate faces the crankshaft side, and an arch-shaped flow-gathering groove is provided at the lower section of the concave surface of the arc-shaped plate. Multiple branch flow-gathering grooves are provided on the concave surface of the arc-shaped plate above the flow-gathering groove, and one end of the branch flow-gathering groove is connected to the flow-gathering groove.

[0016] In addition, the arched baffle is arranged obliquely along the front and rear directions. The side of the arched baffle closer to the crankshaft is lower, and the side of the arched baffle closer to the airfoil block is higher. This design is more conducive to the backflow of oil splashed on the crankshaft towards the cylinder head, until it enters the central area of ​​the base, or the piston passage and surrounding area; the movable baffle and the airfoil block can be at the same height.

[0017] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0018] 1. This utility model can effectively improve the oil circulation capacity of the compressor through the combined design of the fixed baffle structure, the movable baffle structure and the arched baffle.

[0019] 2. The present invention, by setting the airfoil block on the arc-shaped surface on the upper front side of the arched baffle, and by fitting the front side of the airfoil block with the rear side of the cylinder head, makes it easier to fix and connect the airfoil block.

[0020] 3. Through the design of the movable baffle structure, this utility model can effectively improve the compressor oil circulation capacity in combination with the fixed baffle structure and the arched baffle. In addition, the movable baffle structure can be further improved in terms of movement stability by cooperating with the arched baffle and the connecting rod.

[0021] 4. The present invention features strip-shaped grooves on the left and right side walls of the slide groove, and annular protrusions matching the strip-shaped grooves on the outer peripheral wall of the slide block. The annular protrusions and the strip-shaped grooves are designed to roll and make line contact with each other, ensuring that the slide block slides stably in the slide groove.

[0022] 5. In this utility model, the movable baffle is an arc-shaped plate, and the left and right sides of the bottom of the arc-shaped plate extend toward the upper surface of the base, so that the bottom of the arc-shaped plate has an arched design, which lowers the center of gravity of the arc-shaped plate and further facilitates stable sliding.

[0023] 6. In this utility model, the concave surface of the arc-shaped plate faces the crankshaft side, and an arched flow-gathering groove is provided at the lower section of the concave surface of the arc-shaped plate. Multiple branch flow-gathering grooves are provided on the concave surface of the arc-shaped plate above the flow-gathering groove. The design of one end of the branch flow-gathering groove communicating with the flow-gathering groove can better ensure the guidance of oil by the movable baffle in the sliding state. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 for Figure 1 Top view;

[0027] Figure 3 for Figure 1 Front view;

[0028] Figure 4 for Figure 1 Side view;

[0029] Figure 5 This is an assembly diagram of the crankshaft, connecting rod, piston, movable baffle, and arched baffle in this utility model;

[0030] Figure 6 This is an assembly diagram of the crankshaft, connecting rod, piston, and piston passage in this utility model;

[0031] Figure 7 This is a schematic diagram of the movable baffle in this utility model.

[0032] In the diagram: 100-Base; 101-Cylinder head; 102-Arch baffle; 103-Piston passage; 104-Shaft hole; 105-Crankshaft; 106-Connecting rod; 107-Piston pin; 108-Piston; 109-Modible baffle; 110-Spring; 111-Slide groove; 112-Slide seat; 113-Branch converging groove; 114-Converging groove; 115-Guide seat; 116-Airfoil block; 117-Transition boss; 118-Retreat notch. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and 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. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0038] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] Example 1

[0040] like Figures 1 to 6As shown, a refrigeration compressor airfoil cylinder base includes a base 100 and a cylinder head 101 for connecting external cylinder accessories. The front side of the base 100 is connected to the cylinder head 101. A shaft hole 104 is provided at the middle position of the base 100. A drive shaft on the lower side of a crankshaft 105 is rotatably sleeved in the shaft hole 104. The drive shaft on the upper side of the crankshaft 105 is connected to a connecting rod 106. The connecting rod 106 is connected to a piston 108 obliquely below the front side of the connecting rod 106 through a piston pin 107.

[0041] A transition boss 117 is provided on the upper surface of the base 100 on one side of the cylinder head 101. The front side of the transition boss 117 fits against the cylinder head 101. A piston channel 103 is formed on the cylinder head 101. The piston channel 103 extends towards the base 100 and passes through the transition boss 117. The upper surface of the transition boss 117 has a relief notch 118 that communicates with the top of the piston channel 103, and the rear side of the relief notch 118 is open. The piston 108 is slidably fitted inside the piston channel 103.

[0042] An arched baffle 102 is provided on the upper surface of the transition boss 117. An allowance space is formed between the arched baffle 102 and the allowance notch 118. A fixed baffle structure is provided on the front side of the arched baffle 102, and a movable baffle structure is provided on the rear side of the arched baffle 102. Both the fixed baffle structure and the movable baffle structure are located between the base 100 and the external cylinder.

[0043] The compressor oil circulation capacity can be effectively improved by combining the fixed baffle structure, the movable baffle structure, and the arched baffle 102.

[0044] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the fixed baffle structure includes an airfoil block 116, which is disposed on the arc-shaped surface on the upper front side of the arched baffle 102, and the front side of the airfoil block 116 is in contact with the rear side of the cylinder head 101.

[0045] The airfoil block 116 is positioned on the arc-shaped surface on the upper front side of the arched baffle 102, and the design of the front side of the airfoil block 116 fitting snugly against the rear side of the cylinder head 101 makes it easier to fix the airfoil block 116.

[0046] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, in this embodiment, the movable baffle structure includes a movable baffle 109, a spring 110, a slide groove 111, a slide block 112, a guide seat 115, and a slide rod. A cylindrical slide block 112 is provided at the bottom center of the movable baffle 109. The upper surface of the connecting rod 106 is provided with a slide groove 111 arranged along the front and rear directions. The slide block 112 is slidably disposed in the slide groove 111.

[0047] A pair of symmetrically arranged guide seats 115 are hinged to the arc-shaped surface on the upper rear side of the arched baffle 102. The guide seats 115 are provided with assembly channels.

[0048] The slide rod consists of two rods. The front side of the movable baffle 109 is hinged to one end of the slide rod. The slide rod slides through the assembly channel of the guide seat 115. A limit protrusion is provided at the other end of the slide rod. A spring 110 is sleeved on the rod body of the slide rod located between the movable baffle 109 and the guide seat 115.

[0049] The design of the movable baffle structure, on the one hand, can effectively improve the compressor oil circulation capacity by cooperating with the fixed baffle structure and the arched baffle 102; on the other hand, the cooperation and connection with the arched baffle 102 and the connecting rod 106 can further improve the movement stability of the movable baffle structure.

[0050] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, the left and right side walls of the slide groove 111 are provided with strip-shaped grooves, and the outer peripheral wall of the slide block 112 is provided with annular protrusions that match the strip-shaped grooves. The annular protrusions and the strip-shaped grooves roll and make line contact with each other.

[0051] The slide 111 has strip-shaped grooves on its left and right side walls, and the slide block 112 has annular protrusions on its outer peripheral wall that match the strip-shaped grooves. The annular protrusions and the strip-shaped grooves are designed to roll and make line contact with each other, ensuring that the slide block 112 slides stably in the slide 111.

[0052] like Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, in this embodiment, the movable baffle 109 is an arc-shaped plate, and the left and right sides of the bottom of the arc-shaped plate extend toward the upper surface of the base 100, so that the bottom of the arc-shaped plate is arched.

[0053] The movable baffle 109 is an arc-shaped plate, and the left and right sides of the bottom of the arc-shaped plate extend toward the upper surface of the base 100, so that the bottom of the arc-shaped plate has an arched design, which lowers the center of gravity of the arc-shaped plate and further facilitates stable sliding.

[0054] like Figure 1 , Figure 4 , Figure 5 and Figure 6 and Figure 7 As shown, in this embodiment, the concave surface of the arc plate faces the crankshaft 105. An arched flow-gathering groove 114 is provided at the lower section of the concave surface of the arc plate. Multiple branch flow-gathering grooves 113 are provided on the concave surface of the arc plate above the flow-gathering groove 114. One end of the branch flow-gathering groove 113 is connected to the flow-gathering groove 114.

[0055] The concave surface of the arc-shaped plate faces the crankshaft 105. An arched flow-gathering groove 114 is formed at the lower part of the concave surface of the arc-shaped plate. Multiple branch flow-gathering grooves 113 are formed on the concave surface of the arc-shaped plate above the flow-gathering groove 114. The design of one end of the branch flow-gathering groove 113 communicating with the flow-gathering groove 114 can better ensure the guidance of oil by the movable baffle 109 in the sliding state.

[0056] Working principle:

[0057] The crankshaft 105 drives the connecting rod 106, piston pin 107, and piston 108 to enter or exit the retraction notch 118 and retraction space. During this process, oil splashed onto the high-speed rotating crankshaft 105 towards the cylinder head 101 is effectively trapped by the combined design of the fixed baffle structure, the movable baffle structure, and the arched baffle 102, preventing oil from entering the refrigeration pipeline at the junction of the base 100, the cylinder head 101, and the cylinder assembly area. This effectively improves the compressor oil circulation capacity.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A breechblock cylinder base for a refrigeration compressor, characterized in that: The system includes a base (100) and a cylinder head (101) for connecting external cylinder accessories. The front side of the base (100) is connected to the cylinder head (101). A shaft hole (104) is provided at the middle position of the base (100). A drive shaft on the lower side of a crankshaft (105) is rotatably sleeved in the shaft hole (104). The drive shaft on the upper side of the crankshaft (105) is connected to a connecting rod (106). The connecting rod (106) is connected to a piston (108) on the front side of the connecting rod (106) at an angle below the piston pin (107). The base (100) has a transition boss (117) on its upper surface located on one side of the cylinder head (101). The front side of the transition boss (117) fits against the cylinder head (101). A piston channel (103) is provided on the cylinder head (101). The piston channel (103) extends toward the base (100) and passes through the transition boss (117). The upper surface of the transition boss (117) has a relief notch (118) that communicates with the top of the piston channel (103). The rear side of the relief notch (118) is open. The piston (108) is slidably sleeved in the piston channel (103). An arched baffle (102) is provided on the upper surface of the transition boss (117). An allowance space is formed between the arched baffle (102) and the allowance notch (118). A fixed baffle structure is provided on the front side of the arched baffle (102), and a movable baffle structure is provided on the rear side of the arched baffle (102). Both the fixed baffle structure and the movable baffle structure are located between the base (100) and the external cylinder.

2. The airfoil-structured cylinder base for a refrigeration compressor according to claim 1, characterized in that: The fixed baffle structure includes an airfoil block (116), which is disposed on the arc-shaped surface on the upper front side of the arched baffle (102), and the front side of the airfoil block (116) is in contact with the rear side of the cylinder head (101).

3. The airfoil-structured cylinder base for a refrigeration compressor according to claim 1, characterized in that: The movable baffle structure includes a movable baffle (109), a spring (110), a slide groove (111), a slide block (112), a guide seat (115), and a slide rod. A cylindrical slide block (112) is provided at the bottom center of the movable baffle (109). The upper surface of the connecting rod (106) is provided with a slide groove (111) arranged along the front and rear directions. The slide block (112) is slidably disposed in the slide groove (111). A pair of symmetrically arranged guide seats (115) are hinged to the arc-shaped surface on the upper rear side of the arched baffle (102), and the guide seats (115) are provided with assembly channels. The slide rod consists of two rods. The front side of the movable baffle (109) is hinged to one end of the slide rod. The slide rod slides through the assembly channel of the guide seat (115). A limit protrusion is provided at the other end of the slide rod. A spring (110) is sleeved on the rod body of the slide rod located between the movable baffle (109) and the guide seat (115).

4. The airfoil-structured cylinder base for a refrigeration compressor according to claim 3, characterized in that: The left and right side walls of the slide groove (111) are provided with strip-shaped grooves, and the outer peripheral wall of the slide block (112) is provided with annular protrusions that match the strip-shaped grooves. The annular protrusions and the strip-shaped grooves roll and make line contact with each other.

5. The airfoil-structured cylinder base for a refrigeration compressor according to claim 4, characterized in that: The movable baffle (109) is an arc-shaped plate, and the left and right sides of the bottom of the arc-shaped plate extend toward the upper surface of the base (100), so that the bottom of the arc-shaped plate is arched.

6. The airfoil-structured cylinder base for a refrigeration compressor according to claim 5, characterized in that: The concave surface of the arc plate faces the crankshaft (105). An arched flow-gathering groove (114) is provided at the lower part of the concave surface of the arc plate. Multiple branch flow-gathering grooves (113) are provided on the concave surface of the arc plate above the flow-gathering groove (114). One end of the branch flow-gathering groove (113) is connected to the flow-gathering groove (114).

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