Heat dissipation structure of compressor
By designing the oil conduction path and oil drainage groove structure at the cylinder head of the compressor, the problem of difficulty in sufficient heat exchange of engine oil is solved, a more efficient heat dissipation effect is achieved, and the power consumption of the compressor is reduced.
Patent Information
- Application Number
- CN202421002333.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In the heat dissipation structure of the existing compressor, it is difficult for the engine oil to fully exchange heat with the cylinder and the outer surface of the cylinder under the action of gravity, resulting in local heat concentration and power consumption increase.
A heat dissipation structure including a cylinder seat, a cylinder head and a motor mounting frame is designed. An oil conduction path is set up at the top of the cylinder head, and a longitudinal oil drain groove is formed through a bar baffle to connect with the front oil groove, collect and increase the flow distance of the engine oil, and improve the heat exchange effect.
By concentrating and guiding the oil, it absorbs and takes away the heat from the cylinder head in multiple directions, reducing the temperature rise and power consumption of the compressor cylinder and improving the heat dissipation effect.
Smart Images
Figure CN222596249U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of compressor cylinder seats, and in particular relates to a heat dissipation structure of a compressor. Background Art
[0002] In a fully enclosed compressor, the cylinder seat is the main supporting member for connecting the motor, valve group, and piston. Because the gas compressor, motor generate heat, and mechanical friction generates a lot of heat, different temperature distributions are generated inside the compressor. The upper compressor cylinder and cylinder end face generate higher temperatures, while the oil temperature in the oil pool at the bottom of the compressor is lower. The oil in the cylinder and the upper surrounding area differs by nearly 30°C from the oil in the lower area. The higher the temperature in the cylinder, the greater the power consumption generated during the compression process. In a reciprocating crankshaft connecting rod piston compressor, the oil is generally thrown to the cylinder and the outer surface of the cylinder through the high-speed rotation of the crankshaft, which plays a role in heat dissipation and cooling.
[0003] The problem with the prior art is that the engine oil thrown onto the cylinder seat and the outer surface of the cylinder seat by the rotation of the crankshaft quickly flows along the surface of the component to the bottom of the shell under the action of gravity, and does not undergo sufficient heat exchange with the cylinder and the outer surface of the cylinder, resulting in local heat concentration in the compressor and increased power consumption; the engine oil is dispersed and the heat exchange effect is limited. Summary of the invention
[0004] The utility model aims to solve the problems existing in the prior art and provide a heat dissipation structure of a compressor, which has the advantages of good heat exchange and cooling effect, simple structure and low power consumption.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a heat dissipation structure of a compressor, including a cylinder seat, the cylinder seat including a cylinder head and a motor mounting frame, the cylinder head is provided with a piston hole for connecting a piston, a plurality of strip baffles are arranged on the top of the cylinder head, the strip baffles are used to form a longitudinal oil groove, an oil guide passage is arranged on the cylinder head, the oil guide passage includes a longitudinal oil groove, a front oil groove and a transverse oil groove, the rear end of the longitudinal oil groove is the highest point of the oil guide passage, the front end of the longitudinal oil groove is connected to the front oil groove, the front oil groove is connected to the transverse oil groove, the end of the transverse oil groove is provided with an oil outlet 1, and the heights of the longitudinal oil groove, the front oil groove and the oil outlet 1 are successively reduced to allow the oil to flow.
[0006] In the above scheme, the cylinder head of the cylinder seat is provided with a piston hole for piston positioning, the motor mounting frame is used to install the motor, and the motor is used to provide power for the movement of the piston. The oil guide passage on the top of the cylinder head is used to concentrate the oil on the outer surface of the cylinder head to flow, so that the engine oil can fully absorb and take away the heat of the cylinder head part. The longitudinal oil groove is formed by the strip baffle to connect with the front oil groove to collect the engine oil and lengthen the distance that the engine oil flows in the front and rear directions on the top of the cylinder head, so as to improve the heat exchange effect between the engine oil and the cylinder head. The rear end of the oil guide passage is the highest point of the oil passage. The engine oil collected in the longitudinal oil groove flows along the front oil groove and the transverse oil groove in turn, absorbing and taking away the heat of the cylinder head in multiple directions. The height of the oil groove and the oil outlet port 1 should be set to ensure that the engine oil can eventually be discharged from the oil outlet port 1 and flow back to the oil pool downward to take away the heat of the cylinder head.
[0007] Furthermore, the cylinder head includes a cylinder surface connection portion and a piston frustum portion, and the front oil groove is opened at the top of the cylinder surface connection portion.
[0008] The cylinder surface connection part is used to connect the cylinder cover and valve group on the front side of the cylinder head. The piston cone part is arranged on the rear side of the cylinder surface connection part for sliding connection with the piston. The piston hole in the middle of the cylinder head is used to form a gas compression space. The front oil groove is opened on the front side of the cylinder head to facilitate heat dissipation and cooling of the front side of the cylinder head where heat is seriously generated.
[0009] Furthermore, the transverse oil groove includes a transverse through hole opened in the cylinder surface connection portion, and the oil guide passage is symmetrically arranged on the cylinder head.
[0010] By opening a transverse through hole at the cylinder surface connection, the oil is moved transversely, thereby increasing the heat exchange area with the cylinder head and improving the cooling effect on the cylinder head. The oil guide passage is symmetrical on the left and right, so that the temperature of the left and right sides of the cylinder head is uniform.
[0011] Furthermore, the transverse oil groove includes a circumferential oil groove connected to the transverse through hole, and the circumferential oil groove is connected to the second oil outlet located on the bottom surface of the cylinder surface connection part.
[0012] By setting a circumferential oil groove, the contact heat exchange length of the oil guide passage in the outer circle of the gas compression space is increased, the cooling effect on the cylinder head is improved, and the engine oil after heat exchange flows back to the oil pool from the second oil outlet at the bottom.
[0013] Furthermore, the front oil groove is a U-shaped oil groove, the front end of the front oil groove is connected to the transverse oil groove, and the distance between the transverse oil groove and the cylinder surface of the cylinder head does not exceed 10 mm.
[0014] By opening a U-shaped oil groove, it is convenient to collect the top oil, and two longitudinal oil grooves are connected to increase the number of oil grooves and improve the heat exchange effect. The opening side of the U-shaped oil groove faces rearward, and the front end oil of the front oil groove supplies oil to the longitudinal oil groove and the transverse oil groove respectively. Since the final position of the piston compressing the gas is the front side of the cylinder head, the heat on the front side of the cylinder head is more concentrated. The distance between the transverse oil groove and the cylinder head surface is set so that the transverse oil grooves are concentrated on the high-temperature part of the cylinder head, thereby improving the heat dissipation and cooling effect of the cylinder head.
[0015] Furthermore, two front oil grooves are symmetrically arranged on the top of the cylinder head, and the top surfaces of the strip baffles have the same height.
[0016] The front oil tank is symmetrical on both sides to ensure even heat dissipation on both sides, and the strip baffles are of equal height for easy manufacturing.
[0017] Furthermore, the longitudinal oil groove includes a plurality of straight groove bodies, the front ends of the straight groove bodies are connected to each other, and the bottom heights of the straight groove bodies decrease sequentially from the back to the front.
[0018] The straight tank body has a simple structure and is easy to manufacture. The bottom height decreases sequentially, and the front ends are interconnected to facilitate the concentrated flow of the engine oil to the lateral oil tank.
[0019] Furthermore, the longitudinal oil groove is composed of adjacent strip baffles or of a strip baffle and a piston frustum.
[0020] A longitudinal oil groove is formed by adjacent strip baffles or the surface of the strip baffle and the piston truncated cone portion, and the structure is simple.
[0021] Compared with the prior art, the beneficial effects of the utility model are:
[0022] 1. By setting up an oil guide passage at the cylinder head where the heat of the cylinder seat is concentrated, the oil is concentrated and guided, so that the oil flows longitudinally and transversely on the cylinder head, fully absorbing the heat generated by the piston compression movement at the cylinder head, and bringing the heat back to the lower temperature oil pool at the bottom, reducing the temperature rise of the compressor cylinder and the power consumption of the compressor;
[0023] 2. By setting the front oil groove, oil groove and oil outlet on the original cylinder seat structure, the surface oil is concentrated in the direction of piston movement in the cylinder and the cylinder end face of gas compression, and the cylinder head is targeted for heat exchange and cooling to avoid excessive temperature. The oil circuit structure is unobstructed, and finally the high-temperature oil flows back to the lower temperature oil pool at the bottom, with good heat exchange effect;
[0024] 3. The oil is guided and concentrated by setting strip baffles and opening holes and grooves, which has a simple structure and is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1This is a structural stereogram of a heat dissipation structure of a compressor according to Embodiment 1 of the utility model;
[0026] Figure 2 This is a structural cross-sectional view of a heat dissipation structure of a compressor according to Embodiment 1 of the utility model;
[0027] Figure 3 This is a structural cross-sectional view of a heat dissipation structure of a compressor according to Embodiment 2 of the utility model;
[0028] In the figure: 1. Cylinder surface connection part; 2. Motor mounting bracket; 3. Piston hole; 4. Front oil groove; 5. Longitudinal oil groove; 6. Horizontal through hole; 7. Oil outlet 1; 8. Oil outlet 2; 9. Circumferential oil groove; 10. Strip baffle; 11. Piston cone part. DETAILED DESCRIPTION
[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative labor are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the terms front, back, left, right, etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the utility model product is usually placed when used. They are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0030] Example 1
[0031] like Figure 1-2 As shown, a heat dissipation structure of a compressor includes a cylinder seat, the cylinder seat includes a cylinder head and a motor mounting frame 2, the cylinder head is provided with a piston hole 3 for connecting a piston, the top of the cylinder head is provided with a plurality of strip baffles 10, the strip baffles 10 are used to form a longitudinal oil groove 5, an oil guide passage is provided on the cylinder head, the oil guide passage includes the longitudinal oil groove 5, the front oil groove 4 and the transverse oil groove, the rear end of the longitudinal oil groove 5 is the highest point of the oil guide passage, the front end of the longitudinal oil groove 5 is connected to the front oil groove 4, the front oil groove 4 is connected to the transverse oil groove, the end of the transverse oil groove is provided with an oil outlet 7, the heights of the longitudinal oil groove 5, the front oil groove 4 and the oil outlet 7 are successively reduced to allow the oil to flow.
[0032] In the above scheme, the cylinder head of the cylinder seat is provided with a piston hole 3 for piston positioning, the motor mounting frame 2 is used to install the motor, and the motor is used to provide power for the movement of the piston. The oil guide passage on the top of the cylinder head is used to concentrate the oil to flow on the outer surface of the cylinder head, so that the engine oil can fully absorb and take away the heat of the cylinder head part. The longitudinal oil groove 5 is formed by the strip baffle 10 to connect with the front oil groove 4 to collect the engine oil and lengthen the distance that the engine oil flows in the front and rear directions on the top of the cylinder head, thereby improving the heat exchange effect between the engine oil and the cylinder head. The rear end of the oil guide passage is the highest point of the oil passage. The engine oil collected in the longitudinal oil groove 5 flows along the front oil groove 4 and the transverse oil groove in turn, absorbing and taking away the heat of the cylinder head in multiple directions. The height of the oil groove and the oil outlet 7 should be set to ensure that the engine oil can eventually be discharged from the oil outlet 7 and flow back to the oil pool downward to take away the heat of the cylinder head.
[0033] The bottom height of the oil guide passage is gradually reduced to facilitate oil flow and heat exchange. The outer end of the transverse through hole 6 is tilted downward to facilitate oil flow.
[0034] Furthermore, the cylinder head includes a cylinder surface connection portion 1 and a piston frustum portion 11 , and the front oil groove 4 is opened at the top of the cylinder surface connection portion 1 .
[0035] The cylinder surface connection part 1 is used to connect the cylinder cover and the valve group on the front side of the cylinder head. The piston cone part 11 is arranged on the rear side of the cylinder surface connection part 1 for sliding connection with the piston. The piston hole 3 in the middle of the cylinder head is used to form a gas compression space. The front oil groove 4 is opened on the front side of the cylinder head to facilitate heat dissipation and cooling of the front side of the cylinder head where heat is seriously generated.
[0036] The cylinder surface connection part 1 is provided with a plurality of threaded holes for connecting the valve group and the cylinder head, and the cross section of the cylinder surface connection part 1 is a trapezoid.
[0037] Furthermore, the transverse oil groove includes a transverse through hole 6 opened in the cylinder surface connecting portion 1, and the oil guide passage is symmetrically arranged on the cylinder head.
[0038] By opening a transverse through hole 6 in the cylinder surface connection portion 1, the oil is moved transversely, thereby increasing the heat exchange area with the cylinder head and improving the cooling effect on the cylinder head. The oil guide passage is symmetrical on the left and right, so that the temperature of the left and right sides of the cylinder head is uniform.
[0039] Furthermore, the front oil groove 4 is a U-shaped oil groove, the front end of the front oil groove 4 is connected to the transverse oil groove, and the distance between the transverse oil groove and the cylinder surface of the cylinder head does not exceed 10 mm.
[0040] By opening a U-shaped oil groove, it is convenient to collect the top oil, and two longitudinal oil grooves 5 are connected to increase the number of oil grooves and improve the heat exchange effect. The opening side of the U-shaped oil groove faces rearward, and the front end oil of the front oil groove 4 supplies oil to the longitudinal oil groove 5 and the transverse oil groove respectively. Since the final position of the piston compressing the gas is the front side of the cylinder head, the heat on the front side of the cylinder head is more concentrated. The distance between the transverse oil groove and the cylinder head cylinder surface is set so that the transverse oil grooves are concentrated on the high-temperature part of the cylinder head, thereby improving the heat dissipation and cooling effect of the cylinder head.
[0041] Furthermore, two front oil grooves 4 are symmetrically arranged on the top of the cylinder head, and the top surfaces of the strip baffles 10 have the same height.
[0042] The front oil groove 4 is symmetrical on the left and right sides, so that the heat dissipation on the left and right sides is uniform, and the strip baffles 10 are of equal height, which is convenient for manufacturing.
[0043] Furthermore, the longitudinal oil groove 5 includes a plurality of straight groove bodies, the front ends of the straight groove bodies are connected to each other, and the bottom heights of the straight groove bodies decrease sequentially from the back to the front.
[0044] The straight tank body has a simple structure and is easy to manufacture. The bottom height decreases sequentially, and the front ends are interconnected to facilitate the concentrated flow of the engine oil to the lateral oil tank.
[0045] Furthermore, the longitudinal oil groove 5 is composed of adjacent strip baffles 10 or the strip baffles 10 and the piston frustum 11 .
[0046] The longitudinal oil groove 5 is formed by the surfaces of adjacent strip baffles 10 or the strip baffles 10 and the piston truncated cone portion 11, and the structure is simple.
[0047] Example 2
[0048] like Figure 3 As shown, a heat dissipation structure of a compressor in this embodiment is further modified as follows on the basis of Embodiment 1:
[0049] Furthermore, the transverse oil groove includes a circumferential oil groove 9 connected to the transverse through hole 6 , and the circumferential oil groove 9 is connected to an oil outlet 2 8 located on the bottom surface of the cylinder surface connecting portion 1 .
[0050] By providing the circumferential oil groove 9, the contact heat exchange length of the oil guide passage in the outer ring of the gas compression space is increased, thereby improving the cooling effect on the cylinder head. The oil after heat exchange flows back to the oil pool from the bottom oil outlet 8.
[0051] The circumferential oil groove 9 can be one or more inclined straight oil grooves or arc-shaped oil grooves. In the embodiment, it is one straight oil groove.
[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A heat dissipation structure of a compressor, characterized in that: It includes a cylinder seat, which includes a cylinder head and a motor mounting frame. The cylinder head is provided with a piston hole for connecting a piston. A plurality of strip baffles are arranged on the top of the cylinder head. The strip baffles are used to form a longitudinal oil groove. An oil guide passage is arranged on the cylinder head. The oil guide passage includes a longitudinal oil groove, a front oil groove and a transverse oil groove. The rear end of the longitudinal oil groove is the highest point of the oil guide passage. The front end of the longitudinal oil groove is connected to the front oil groove, and the front oil groove is connected to the transverse oil groove. An oil outlet is arranged at the end of the transverse oil groove. The heights of the longitudinal oil groove, the front oil groove and the oil outlet are successively reduced to allow the oil to flow.
2. The heat dissipation structure of the compressor according to claim 1, characterized in that: The cylinder head comprises a cylinder surface connection portion and a piston truncated cone portion, and the front oil groove is arranged at the top of the cylinder surface connection portion.
3. The heat dissipation structure of the compressor according to claim 2, characterized in that: The transverse oil groove comprises a transverse through hole provided at the cylinder surface connection portion, and the oil guide passage is bilaterally symmetrically arranged on the cylinder head.
4. The heat dissipation structure of the compressor according to claim 3, characterized in that: The transverse oil groove includes a circumferential oil groove connected to the transverse through hole, and the circumferential oil groove is connected to the second oil outlet located on the bottom surface of the cylinder surface connection part.
5. The heat dissipation structure of the compressor according to claim 1, characterized in that: The front oil groove is a U-shaped oil groove, the front end of which is connected to a transverse oil groove, and the distance between the transverse oil groove and the cylinder surface of the cylinder head does not exceed 10 mm.
6. The heat dissipation structure of the compressor according to claim 3, characterized in that: Two front oil grooves are symmetrically arranged on the top of the cylinder head, and the top surfaces of the strip baffles have the same height.
7. The heat dissipation structure of the compressor according to claim 6, characterized in that: The longitudinal oil groove comprises a plurality of straight groove bodies, the front ends of the straight groove bodies are connected to each other, and the bottom heights of the straight groove bodies decrease sequentially from the back to the front.
8. The heat dissipation structure of the compressor according to claim 2, characterized in that: The longitudinal oil groove is composed of adjacent strip baffles or of a strip baffle and a piston truncated cone.