Refrigerator compressor cylinder temperature cooling structure

Abstract

The utility model discloses a temperature cooling structure of a refrigerator compressor cylinder, and aims to overcome the defect that a cooling structure of a compressor cylinder in the prior art is complex. The technical problem is solved through the following technical scheme that the air cylinder comprises an upper connecting plate connected with an upper shell of the compressor and a vertical blocking piece connected with the upper connecting plate, and the vertical blocking piece is arranged above the air cylinder. According to the utility model, the vertical baffle plate is arranged, so that lubricating oil flows downwards along the inner side of the upper shell when the lubricating oil is thrown out from the oil outlet hole by the crankshaft and falls on the inner side wall of the upper shell, and the lubricating oil flows downwards along the vertical baffle plate and then drops on the cylinder from the bottom of the vertical baffle plate when the lubricating oil meets the vertical baffle plate; due to the fact that the temperature of the air cylinder is highest, the lubricating oil can dissipate heat of the air cylinder, the air cylinder has the advantages of being simple in structure and convenient to install, the temperature of the head of the air cylinder can be reduced, and the refrigeration performance coefficient of the compressor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and more specifically to a refrigerator compressor cylinder temperature cooling structure. Background Art

[0002] The compressor is the power source of the refrigerator and also the largest energy-consuming component of the refrigerator. Improving the refrigeration performance coefficient of the refrigerator compressor has always been one of the directions for improving the performance of the compressor. However, the suction overheating caused by the excessive temperature of the compressor cylinder head significantly affects the refrigeration performance coefficient of the compressor. With the continuous requirements for the refrigeration performance coefficient of the compressor, the problem of excessive temperature of the compressor cylinder head has become more and more significant. Therefore, it is urgent to reduce the temperature of the compressor cylinder head with minor changes to the existing structure.

[0003] At present, there are few existing refrigerator compressors that have a structure to cool the compressor cylinder head. Only a small number of them use additional pipes to connect the cylinder head in the literature or patents, and the heat of the cylinder head is taken away by the fluid in the pipe to achieve the purpose of cooling. However, refrigerator compressors are compact in size, and the pipe space is limited. The complex pipes increase the production difficulty and manufacturing cost. And the introduction of pipes inevitably brings a series of problems such as vibration and noise. Therefore, there is a need for a compressor cylinder temperature cooling structure that is easy to implement and has low production difficulty and manufacturing cost.

[0004] The Chinese patent announcement number is CN216198763U, and the announcement date is April 5, 2022. The name of the invention is a piston compressor device. The application discloses a piston compressor device. The above-mentioned device improves the cooling efficiency by setting a cooling water pipe, so the structure is very complicated, which increases the production difficulty and manufacturing cost. Utility Model Content

[0005] The utility model overcomes the drawback of the complicated compressor cylinder cooling structure in the prior art and provides a refrigerator compressor cylinder temperature cooling structure which has the characteristics of simple structure, low manufacturing cost and convenient installation.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solution: a refrigerator compressor cylinder temperature cooling structure, including: an upper connecting plate connected to the compressor upper shell, and a vertical baffle connected to the upper connecting plate, and the vertical baffle is arranged above the cylinder.

[0007] In the utility model, a vertical baffle is provided, so that when the lubricating oil is thrown out of the oil outlet by the crankshaft and falls on the inner wall of the upper shell body, the lubricating oil will flow downward along the inner side of the upper shell body, and when encountering the vertical baffle, the lubricating oil will flow downward along the vertical baffle, and then drip onto the cylinder from the bottom of the vertical baffle. Since the temperature of the cylinder is the highest, the lubricating oil can realize the function of dissipating heat for the cylinder. It has the characteristics of simple structure and easy installation, and can reduce the temperature of the cylinder head, thereby improving the refrigeration performance coefficient of the compressor.

[0008] Preferably, two drainage grooves forming a V-shape toward the middle are arranged below the vertical baffle, and a liquid outlet is arranged at the bottom of the drainage groove.

[0009] By providing a V-shaped drainage groove, the lubricating oil can flow along the drainage groove and then fall on the cylinder from the liquid outlet hole. By providing the drainage groove, more lubricating oil can drip on the cylinder, thereby better improving the cooling efficiency of the cylinder.

[0010] Preferably, a liquid collecting baffle is provided on the vertical baffle, and a side of the liquid collecting baffle close to the vertical baffle is lower than a side of the liquid collecting baffle away from the vertical baffle.

[0011] When the lubricating oil is thrown out of the oil outlet hole by the crankshaft and falls on the bottom of the liquid collecting baffle, the lubricating oil will flow downward along the bottom of the liquid collecting baffle, and finally flow to the bottom of the liquid collecting baffle and drip onto the cylinder from the liquid collecting plate. Since the temperature of the cylinder is the highest, the lubricating oil can realize the function of dissipating heat to the cylinder.

[0012] Preferably, a liquid collecting baffle is provided at the edge of the upper end surface of the liquid collecting baffle; an oil leakage hole is provided through the liquid collecting baffle near the vertical baffle, and the upper end surface of the liquid collecting baffle is inclined toward the direction of the oil leakage hole.

[0013] A liquid collecting baffle is provided below the vertical baffle, and the liquid collecting baffle is provided above the oil outlet, and the side of the liquid collecting baffle close to the vertical baffle is lower than the side of the liquid collecting baffle away from the vertical baffle, and the bottom of the liquid collecting baffle is located above the cylinder. When the lubricating oil is thrown out of the oil outlet by the crankshaft and falls on the bottom of the liquid collecting baffle, the lubricating oil will flow downward along the bottom of the liquid collecting baffle, and finally flow to the bottom of the liquid collecting baffle and drip from the liquid collecting baffle onto the cylinder. Since the temperature of the cylinder is the highest, the lubricating oil can realize the function of cooling the cylinder.

[0014] Preferably, a plurality of heat dissipation fins are arranged above the liquid collection baffle, and the heat dissipation fins are vertically arranged on the upper end surface of the liquid collection baffle.

[0015] The heat dissipation fins are regularly arranged above the liquid collecting baffle, so that the lubricant can encounter the heat dissipation fins, which can better improve the efficiency of condensation.

[0016] Preferably, a plurality of mounting grooves are provided on the upper shell, and the heat dissipation fins are passed through the mounting grooves and communicated with the outside of the shell.

[0017] The above structure enables the heat dissipation fins to exchange heat with the outside of the compressor, so that the heat dissipation fins can dissipate heat in a timely manner, further improving the condensation efficiency of the heat dissipation fins.

[0018] Preferably, a buffer zone is provided at the bottom of the liquid collecting baffle, and a buffer structure is provided in the buffer zone.

[0019] When the lubricating oil flies out of the oil outlet, the lubricating oil hits the bottom of the liquid collecting baffle. The area at the bottom of the liquid collecting baffle where the lubricating oil hits is the buffer zone. The lubricating oil hits the liquid collecting baffle, causing the lubricating oil to splash. Therefore, a buffer zone is provided to reduce or even eliminate the splashing of the lubricating oil, so that all the lubricating oil can be collected, so that more lubricating oil can fall on the cylinder along the bottom of the liquid collecting baffle, thereby improving the cooling effect of the cylinder.

[0020] Preferably, the buffer structure is a buffer sponge arranged in the buffer zone.

[0021] A buffer sponge is arranged on the buffer zone. The sponge is porous and has strong adsorption properties. When the lubricating oil hits the buffer sponge, it can be absorbed by the buffer sponge, thereby reducing the splashing of the lubricating oil. As a result, more lubricating oil can flow down the bottom of the liquid collecting baffle onto the cylinder, thereby improving the cooling effect of the cylinder.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] In the utility model, a vertical baffle is provided, so that when the lubricating oil is thrown out of the oil outlet by the crankshaft and falls on the inner wall of the upper shell body, the lubricating oil will flow downward along the inner side of the upper shell body, and when encountering the vertical baffle, the lubricating oil will flow downward along the vertical baffle, and then drip onto the cylinder from the bottom of the vertical baffle. Since the temperature of the cylinder is the highest, the lubricating oil can realize the function of dissipating heat for the cylinder. It has the characteristics of simple structure and easy installation, and can reduce the temperature of the cylinder head, thereby improving the refrigeration performance coefficient of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of embodiment 1 of the present utility model;

[0025] Figure 2 is a schematic structural diagram of a vertical baffle in Embodiment 2 of the present utility model;

[0026] Figure 3 It is a schematic diagram of the structure in Embodiment 3 and Embodiment 4 of the present utility model;

[0027] Figure 4 It is a structural schematic diagram of the liquid collecting baffle in Example 4 of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of Embodiment 5 and Embodiment 6 of the present utility model;

[0029] Figure 6 yes Figure 5 A partial enlarged view of the

[0030] In the figure: 1, crankcase, 2, crankshaft, 3, cylinder, 4, upper shell, 41, mounting groove, 5, upper connecting plate, 6, vertical baffle, 61, drainage groove, 62, liquid outlet hole, 7, liquid collecting baffle, 71, contraction edge, 72, liquid collecting baffle bar, 73, oil leakage hole, 8, cooling fin, 9, buffer sponge. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Example 1: Reference Figure 1 As shown, a refrigerator compressor cylinder temperature cooling structure, the refrigerator compressor in the prior art mainly includes: a compressor housing, a crankcase 1 arranged in the compressor housing, a crankshaft 2 and a cylinder 3, a lubricating oil circuit is arranged on the crankshaft 2, and the cylinder 3 is arranged above the crankcase 1; during the rotation of the crankshaft 2, an oil outlet hole is arranged above the crankshaft 2, and the lubricating oil is thrown out from the oil outlet hole by the crankshaft 2 to the upper housing 4 of the compressor housing as the crankshaft 2 rotates. The upper housing 4 is arc-shaped, and the top of the upper housing 4 is the highest. The lubricating oil will flow downward along the inner wall of the upper housing 4 until it flows into the liquid collecting tank at the bottom of the compressor housing, and then circulate through the lubricating oil circuit again.

[0033] The temperature cooling structure of the refrigerator compressor cylinder 3 in this embodiment mainly includes an upper connecting plate 5 connected to the compressor upper shell 4. The upper connecting plate 5 can be fixedly set on the upper shell 4 by bolts, or fixedly set on the upper shell 4 by snaps. The upper connecting plate 5 in this embodiment is connected to the upper shell 4 of the compressor by welding; a vertical baffle 6 is connected to the bottom of the upper connecting plate 5, and the vertical baffle is arranged above the cylinder 3. When the lubricating oil is thrown out of the oil outlet by the crankshaft 2 and falls on the inner wall of the upper shell 4, the lubricating oil will flow downward along the inner side of the upper shell 4. When encountering the vertical baffle 6, the lubricating oil will flow downward along the vertical baffle 6, and then drip from the bottom of the vertical baffle 6 onto the cylinder 3. Since the temperature of the cylinder 3 is the highest, the lubricating oil can realize the function of dissipating heat to the cylinder 3.

[0034] In the utility model, a vertical baffle is provided so that when the lubricating oil is thrown out of the oil outlet by the crankshaft 2 and falls on the inner wall of the upper shell 4, the lubricating oil will flow downward along the inner side of the upper shell 4, and when encountering the vertical baffle 6, the lubricating oil will flow downward along the vertical baffle 6, and then drip onto the cylinder 3 from the bottom of the vertical baffle 6. Since the temperature of the cylinder 3 is the highest, the lubricating oil can realize the function of dissipating heat for the cylinder 3. It has the characteristics of simple structure and easy installation, and can reduce the temperature of the head of the cylinder 3, thereby improving the refrigeration performance coefficient of the compressor.

[0035] Example 2: Reference Figure 1 and Figure 2 As shown, a refrigerator compressor cylinder temperature cooling structure, the refrigerator compressor in the prior art mainly includes: a compressor housing, a crankcase 1 arranged in the compressor housing, a crankshaft 2 and a cylinder 3, a lubricating oil circuit is arranged on the crankshaft 2, and the cylinder 3 is arranged above the crankcase 1; during the rotation of the crankshaft 2, an oil outlet hole is arranged above the crankshaft 2, and the lubricating oil is thrown out from the oil outlet hole by the crankshaft 2 to the upper housing 4 of the compressor housing as the crankshaft 2 rotates. The upper housing 4 is arc-shaped, and the top of the upper housing 4 is the highest. The lubricating oil will flow downward along the inner wall of the upper housing 4 until it flows into the liquid collecting tank at the bottom of the compressor housing, and then circulate through the lubricating oil circuit again.

[0036] The temperature cooling structure of the refrigerator compressor cylinder 3 in this embodiment mainly includes an upper connecting plate 5 connected to the compressor upper shell 4. The upper connecting plate 5 can be fixedly set on the upper shell 4 by bolts, or fixedly set on the upper shell 4 by snaps. The upper connecting plate 5 in this embodiment is connected to the upper shell 4 of the compressor by welding; a vertical baffle 6 is connected to the bottom of the upper connecting plate 5, and the vertical baffle is arranged above the cylinder 3. When the lubricating oil is thrown out of the oil outlet by the crankshaft 2 and falls on the inner wall of the upper shell 4, the lubricating oil will flow downward along the inner side of the upper shell 4. When encountering the vertical baffle 6, the lubricating oil will flow downward along the vertical baffle 6, and then drip from the bottom of the vertical baffle 6 onto the cylinder 3. Since the temperature of the cylinder 3 is the highest, the lubricating oil can realize the function of dissipating heat to the cylinder 3.

[0037] The difference between this embodiment and embodiment 1 is as follows: Figure 2 As shown, two drainage grooves 61 are provided below the vertical baffle plate to form a V-shape in the middle, and a liquid outlet 62 is provided at the bottom of the drainage groove 61. In this embodiment, by providing the V-shaped drainage groove 61, the lubricating oil can flow along the drainage groove 61, and then fall on the cylinder 3 from the liquid outlet 62. By providing the drainage groove 61, more lubricating oil can drip on the cylinder 3, thereby better improving the cooling efficiency of the cylinder 3.

[0038] In the utility model, a vertical baffle is provided so that when the lubricating oil is thrown out of the oil outlet by the crankshaft 2 and falls on the inner wall of the upper shell 4, the lubricating oil will flow downward along the inner side of the upper shell 4, and when encountering the vertical baffle 6, the lubricating oil will flow downward along the vertical baffle 6, and then drip onto the cylinder 3 from the bottom of the vertical baffle 6. Since the temperature of the cylinder 3 is the highest, the lubricating oil can realize the function of dissipating heat for the cylinder 3. It has the characteristics of simple structure and easy installation, and can reduce the temperature of the head of the cylinder 3, thereby improving the refrigeration performance coefficient of the compressor.

[0039] Example 3: Reference Figure 3 and Figure 4 As shown, a refrigerator compressor cylinder temperature cooling structure, the refrigerator compressor in the prior art mainly includes: a compressor housing, a crankcase 1 arranged in the compressor housing, a crankshaft 2 and a cylinder 3, a lubricating oil circuit is arranged on the crankshaft 2, and the cylinder 3 is arranged above the crankcase 1; during the rotation of the crankshaft 2, an oil outlet hole is arranged above the crankshaft 2, and the lubricating oil is thrown out from the oil outlet hole by the crankshaft 2 to the upper housing 4 of the compressor housing as the crankshaft 2 rotates. The upper housing 4 is arc-shaped, and the top of the upper housing 4 is the highest. The lubricating oil will flow downward along the inner wall of the upper housing 4 until it flows into the liquid collecting tank at the bottom of the compressor housing, and then circulate through the lubricating oil circuit again.

[0040] The temperature cooling structure of the refrigerator compressor cylinder 3 in this embodiment mainly includes an upper connecting plate 5 connected to the compressor upper shell 4, and the upper connecting plate 5 can be fixedly arranged on the upper shell 4 by means of bolts, or the upper connecting plate 5 can be fixedly arranged on the upper shell 4 by means of buckles. The upper connecting plate 5 in this embodiment is connected to the upper shell 4 of the compressor by welding; a vertical baffle 6 is connected to the bottom of the upper connecting plate 5.

[0041] A liquid collecting baffle 7 is arranged below the vertical baffle 6, and the liquid collecting baffle 7 is arranged above the oil outlet, and the side of the liquid collecting baffle 7 close to the vertical baffle 6 is lower than the side of the liquid collecting baffle 7 away from the vertical baffle 6, and the bottom of the liquid collecting baffle 7 is located above the cylinder 3. When the lubricating oil is thrown out of the oil outlet by the crankshaft 2 and falls on the bottom of the liquid collecting baffle 7, the lubricating oil will flow downward along the bottom of the liquid collecting baffle 7, and finally flow to the bottom of the liquid collecting baffle 7 and drip from the liquid collecting baffle onto the cylinder 3. Since the temperature of the cylinder 3 is the highest, the lubricating oil can realize the function of dissipating heat for the cylinder 3.

[0042] In addition, the liquid collecting baffle 7 in this embodiment is provided with a contraction edge 71, which contracts toward the vertical baffle 6, so that the lubricating oil can flow along the contraction edge 71, and the lubricating oil can all drip onto the cylinder 3, thereby improving the cooling efficiency of the cylinder 3.

[0043] In this embodiment, by providing the liquid collecting baffle 7, when the lubricating oil is thrown out of the oil outlet by the crankshaft 2 and falls on the bottom of the liquid collecting baffle 7, the lubricating oil will flow downward along the bottom of the liquid collecting baffle 7, and finally flow to the bottom of the liquid collecting baffle 7 and drip from the liquid collecting plate onto the cylinder 3. Since the temperature of the cylinder 3 is the highest, the lubricating oil can realize the function of dissipating heat for the cylinder 3. It has the advantages of simple structure and convenient installation, and can reduce the temperature of the head of the cylinder 3, thereby improving the refrigeration performance coefficient of the compressor.

[0044] Example 4: Figure 4 As shown, the structural difference between this embodiment and embodiment 3 lies in that a liquid collecting baffle bar 72 is provided at the edge of the upper end surface of the liquid collecting baffle 7; an oil leakage hole 73 is penetrated through the liquid collecting baffle 7 near the vertical baffle 6, and the upper end surface of the liquid collecting baffle 7 is inclined toward the direction of the oil leakage hole 73.

[0045] Under the high-speed rotation of the compressor crankshaft 2 and connecting rod, the liquid lubricating oil is sheared into mist-like small droplets and enters the liquid collecting baffle 7 under the action of centrifugal force and the airflow inside the compressor. Since the upper shell 4 has good heat dissipation and the heat conduction between the liquid collecting baffle 7 and the upper shell 4, the heat of the lubricating oil in the liquid collecting baffle 7 is quickly taken away, and many small droplets are re-aggregated into liquid lubricating oil with lower temperature under the action of gravity and flow into the top of the liquid collecting baffle 7. Finally, the lubricating oil drips into the head of the cylinder 3 through the oil leakage hole 73. The lubricating oil liquid with lower temperature fully exchanges heat with the outer surface of the cylinder 3, so that the compressor cylinder head is cooled down.

[0046] Example 5: Reference Figure 5 , Figure 6 As shown, the structure of this embodiment is similar to that of embodiment 4, except that a plurality of heat dissipation fins 8 are arranged above the liquid collection baffle 7, and the heat dissipation fins 8 are vertically arranged on the upper end surface of the liquid collection baffle 7. The heat dissipation fins 8 in this embodiment are regularly arranged above the liquid collection baffle 7, so that the lubricant encounters the heat dissipation fins 8, which can better improve the efficiency of condensation.

[0047] A plurality of mounting grooves 41 are provided on the upper shell 4, and the heat dissipation fins 8 are arranged through the mounting grooves 41 and communicated with the outside of the shell, so that the heat dissipation fins 8 can exchange heat with the outside of the compressor, so that the heat dissipation fins 8 can dissipate heat in time, further improving the condensation efficiency of the heat dissipation fins 8.

[0048] Example 6: Reference Figure 5 and Figure 6 As shown, the structure of this embodiment is similar to that of embodiment 3, embodiment 4 and embodiment 5, except that a buffer zone is provided at the bottom of the liquid collecting baffle 7, and a buffer structure is provided in the buffer zone. The buffer structure is a buffer sponge 9 provided in the buffer zone.

[0049] When the lubricating oil flies out from the oil outlet, the lubricating oil hits the bottom of the liquid collecting baffle 7. The bottom area of ​​the liquid collecting baffle 7 where the lubricating oil hits is the buffer zone. The lubricating oil hits the liquid collecting baffle 7, causing the lubricating oil to splash. Therefore, a buffer zone is provided to reduce or even eliminate the splashing of the lubricating oil, so that the lubricating oil can be completely collected, so that more lubricating oil can fall on the cylinder 3 along the bottom of the liquid collecting baffle 7, thereby improving the cooling effect of the cylinder 3. Therefore, in this embodiment, a buffer structure is provided in the buffer zone. The buffer structure can be a buffer net or other structure provided at the bottom of the liquid collecting baffle 7. In this embodiment, a buffer sponge 9 is provided on the buffer zone. By utilizing the characteristics of the sponge being porous and having strong adsorption, the lubricating oil can be absorbed by the buffer sponge 9 when it hits the buffer sponge 9, thereby reducing the splashing of the lubricating oil, and then more lubricating oil can fall on the cylinder 3 along the bottom of the liquid collecting baffle 7, thereby improving the cooling effect of the cylinder 3.

[0050] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A refrigerator compressor cylinder temperature cooling structure, characterized in that: include: An upper connecting plate connected to the upper shell of the compressor, and a vertical baffle connected to the upper connecting plate, wherein the vertical baffle is arranged above the cylinder.

2. The refrigerator compressor cylinder temperature cooling structure according to claim 1, characterized in that: Two drainage grooves forming a V shape toward the middle are arranged below the vertical baffle, and a liquid outlet hole is arranged at the bottom of the drainage groove.

3. The refrigerator compressor cylinder temperature cooling structure according to claim 1, characterized in that: A liquid collecting baffle is arranged on the vertical baffle, and a side of the liquid collecting baffle close to the vertical baffle is lower than a side of the liquid collecting baffle away from the vertical baffle.

4. The refrigerator compressor cylinder temperature cooling structure according to claim 3, characterized in that: A liquid collecting baffle is provided at the edge of the upper end surface of the liquid collecting baffle; an oil leakage hole is provided through the liquid collecting baffle near the vertical baffle, and the upper end surface of the liquid collecting baffle is inclined toward the direction of the oil leakage hole.

5. The refrigerator compressor cylinder temperature cooling structure according to claim 4, characterized in that: A plurality of heat dissipation fins are arranged above the liquid collecting baffle, and the heat dissipation fins are vertically arranged on the upper end surface of the liquid collecting baffle.

6. The refrigerator compressor cylinder temperature cooling structure according to claim 5, characterized in that: A plurality of mounting grooves are arranged on the upper shell body, and the heat dissipation fins are arranged through the mounting grooves and communicated with the outside of the shell body.

7. The refrigerator compressor cylinder temperature cooling structure according to any one of claims 3 to 6, characterized in that: A buffer zone is arranged at the bottom of the liquid collecting baffle plate, and a buffer structure is arranged in the buffer zone.

8. The refrigerator compressor cylinder temperature cooling structure according to claim 7, characterized in that: The buffer structure is a buffer sponge arranged in the buffer zone.

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