Compressor cylinder cover and compressor

Abstract

The utility model provides a compressor cylinder cover and a compressor. In order to solve the problem that an exhaust cavity of an existing compressor cylinder cover is insufficient in strength and prone to damage, a first supporting arm and a second supporting arm are arranged in the exhaust cavity of the cylinder cover, connection between a boss on the inner wall of the exhaust cavity and a U-shaped groove is established, reinforcing ribs are additionally arranged, the U-shaped groove is supported from three positions, the strength of the U-shaped groove is improved, and the strength of the U-shaped groove is improved. And the damage to the U-shaped groove during exhaust impact is reduced.

Description

Technical Field

[0001] The utility model relates to the field of compressor accessories, in particular to a compressor cylinder cover and a compressor. Background Art

[0002] The refrigerator compressor is the core component of the refrigerator refrigeration system. The cylinder head is a key part of the refrigerator compressor. It can realize the separation of high and low pressure chambers during the operation of the compressor and ensure the normal suction and exhaust cycle of the compressor. The cylinder head exhaust chamber plays a buffering and silencing function in the exhaust system. The cylinder head not only plays a sealing role, but also withstands the high temperature and high pressure working environment. However, the existing refrigerator compressor cylinder head structure has some defects, which directly affects the performance and service life of the compressor.

[0003] A Chinese patent (publication number: CN210440192U) discloses a compressor cylinder head, which connects the intake chamber and the exhaust chamber, with only a first partition designed in the middle for partial separation. This design allows the intake chamber to expand the use of the exhaust chamber space when encountering a large intake volume, and the exhaust chamber can also expand the use of the intake chamber space when encountering a large airflow, thereby significantly expanding the available space. There is no reinforcement structure between the step and the U-shaped groove of the cylinder head, and the arc position of the U-shaped groove is only supported by the second partition, resulting in insufficient strength of the U-shaped groove. Under the impact of exhaust gas, the U-shaped groove is easily damaged; in addition, if Figure 1 As shown, the partition inside the cylinder head is flush with the opening surface of the exhaust chamber. Although an opening is provided, the opening is close to the side wall of the cylinder head. The fluidity of the exhaust gas in the cylinder head is poor, resulting in a greater impact and affecting the safety of the cylinder head. Utility Model Content

[0004] The purpose of the utility model is to provide a compressor cylinder head and a compressor in view of the defects of the prior art, wherein a first support arm and a second support arm are arranged in the exhaust chamber of the cylinder head, a connection is established between the boss on the inner wall of the exhaust chamber and the U-shaped groove, and reinforcing ribs are added to support the U-shaped groove from three positions, thereby improving the strength of the U-shaped groove and reducing damage to the U-shaped groove during exhaust impact.

[0005] The first purpose of the utility model is to provide a compressor cylinder head, which adopts the following technical solutions:

[0006] It includes a cover body, which is provided with a U-shaped groove for matching with the intake pipe, an exhaust chamber is provided on the side of the cover body facing the cylinder body, a boss distributed along the inner wall is provided on the side of the exhaust chamber away from the U-shaped groove, a first arm and a second arm are connected between the boss and the U-shaped groove, and a first fracture is provided on the section of the first arm between the boss and the U-shaped groove; the inner wall of the exhaust chamber where the boss is not distributed is connected to the U-shaped groove through reinforcing ribs.

[0007] Furthermore, an upper arm is provided between the first arm and the second arm in the exhaust cavity, the upper arm is connected to the boss, and a second fracture is left between the upper arm and the inner wall of the exhaust cavity.

[0008] Furthermore, the upper arm and the U-shaped groove are arranged at intervals.

[0009] Furthermore, the U-shaped groove includes an arc segment and a straight segment, and the first arm, the second arm and the reinforcing rib are connected to different positions of the U-shaped groove.

[0010] Furthermore, one end of the second arm is connected to the arc section of the U-shaped groove, and the other end is connected to the boss, and a third fracture is formed between the second arm and the inner wall of the exhaust chamber.

[0011] Furthermore, one end of the first arm is connected to the arc section of the U-shaped groove, and the other end is connected to the boss and the inner wall of the exhaust cavity.

[0012] Furthermore, the main body of the first arm is flush with the opening of the exhaust cavity, and the first fracture is recessed in the exhaust cavity relative to the main body of the first arm.

[0013] Furthermore, a sealing line is provided on the end surface of the cover body at the edge of the exhaust cavity opening, and the sealing line is distributed around the exhaust cavity opening to form a closed curve structure.

[0014] Furthermore, one end of the cover body away from the exhaust cavity opening is coated with a heat dissipation layer, and the heat dissipation layer is a graphene coating.

[0015] The second object of the utility model is to provide a compressor, which utilizes the compressor cylinder head as described in the first object.

[0016] Compared with the prior art, the utility model has the following advantages and positive effects:

[0017] (1) In view of the problem that the exhaust chamber of the cylinder head of the current compressor is not strong enough and is prone to damage, a first support arm and a second support arm are arranged in the exhaust chamber of the cylinder head to establish a connection between the boss on the inner wall of the exhaust chamber and the U-shaped groove, and reinforcing ribs are added to support the U-shaped groove from three positions, thereby improving the strength of the U-shaped groove and reducing the damage to the U-shaped groove during exhaust impact.

[0018] (2) A sealing line is arranged on the end surface of the cover body around the opening of the exhaust chamber, so that the cylinder head is sealed when docking with the exhaust valve sheet, valve plate and other components, reducing leakage, thereby improving the exhaust efficiency.

[0019] (3) A heat dissipation coating is provided at one end of the cylinder head away from the exhaust chamber opening to improve the heat dissipation efficiency of the cylinder head, thereby increasing the service life of the compressor.

[0020] (4) Adjusting the break on the first arm to the middle position can improve the flow path of the exhaust gas in the exhaust chamber, improve the flow path of the refrigerant medium in the exhaust chamber, reduce the impact on the inner wall of the cylinder head, increase the exhaust volume, improve the exhaust efficiency, reduce the exhaust temperature, and thus increase the cooling capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 It is a schematic diagram of the existing cylinder head exhaust chamber recorded in the background technology.

[0023] Figure 2 This is a schematic diagram of the compressor cylinder head in Example 1 of the utility model.

[0024] Figure 3 This is a schematic diagram of the compressor cylinder in Example 2 of the utility model.

[0025] In the figure, 1. cover body, 2. cylinder block, 3. reinforcing rib, 4. first fracture, 5. first support arm, 6. upper arm, 7. second fracture, 8. sealing line, 9. boss, 10. third fracture, 11. second support arm, 12. U-shaped groove, 13. exhaust chamber. DETAILED DESCRIPTION

[0026] Example 1

[0027] In a typical implementation of the present invention, Figure 2 As shown, a compressor cylinder head is proposed.

[0028] There is no reinforcing steel structure between the boss 9 and the U-shaped groove 12 of the current cylinder head, resulting in insufficient structural strength of the U-shaped groove 12. Under the impact of exhaust gas, the U-shaped groove 12 is easily damaged, resulting in intake and exhaust leakage. Based on this, this embodiment provides a compressor cylinder head, in which a first arm 5, a second arm 11 and a reinforcing rib 3 are arranged in the exhaust chamber 13 of the cylinder head, and the U-shaped groove 12 is reinforced from three different positions, thereby improving the strength of the U-shaped groove 12 to cope with exhaust gas impact, reducing the damage of the exhaust gas impact to the U-shaped groove 12, thereby ensuring exhaust efficiency and reducing exhaust leakage problems.

[0029] like Figure 2 As shown, the main body of the compressor cylinder head is a cover body 1, one side of the cover body 1 is provided with an exhaust chamber 13, and the other side is a blocking end. The cover body 1 is provided with a U-shaped groove 12 for matching with the intake pipe. The compressor cylinder inhales the refrigerant medium through the intake pipe matched at the U-shaped groove 12, and outputs it to the exhaust chamber 13 after compression.

[0030] The opening of the exhaust chamber 13 faces the cylinder block 2. After the cylinder head is installed on the cylinder block 2 through components such as the valve plate and the valve sheet, the opening of the exhaust chamber 13 is blocked, so that the exhaust chamber 13 forms a relatively closed cavity.

[0031] The U-shaped groove 12 is arranged on one side of the exhaust cavity 13, and a boss 9 is provided on the side of the exhaust cavity 13 away from the U-shaped groove 12. The boss 9 is distributed along the inner wall of the exhaust cavity 13 and forms an integral body with the inner wall of the exhaust cavity 13. A first arm 5 and a second arm 11 are connected between the boss 9 and the U-shaped groove 12, so that the U-shaped groove 12 is supported and reinforced from two different positions. In the area where the boss 9 is not distributed, the inner wall of the exhaust cavity 13 is connected to the U-shaped groove 12 through the reinforcing rib 3, thereby realizing the third point reinforcement of the U-shaped groove 12.

[0032] In this embodiment, Figure 2 As shown, the reinforcing rib 3, the first arm 5 and the second arm 11 are sequentially connected to the U-shaped groove 12 along the distribution track of the U-shaped groove 12, and the connection points are at different positions to achieve multi-point reinforcement.

[0033] In order to reduce the flow resistance of the refrigerant in the exhaust chamber 13 and increase the volume of the exhaust chamber 13, a first break 4 is provided on the first arm 5. By providing the first break 4, the occupation of the first arm 5 structure on the inner volume of the exhaust chamber 13 can be reduced, thereby achieving the effect of increasing the volume of the exhaust chamber 13. At the same time, the first break 4 is arranged on the first arm 5 segment between the boss 9 and the U-shaped groove 12, which can improve the internal flow path, so that the refrigerant can pass between the boss 9 and the U-shaped groove 12, and reduce the impact on the inner wall of the exhaust chamber 13.

[0034] Among them, an upper arm 6 is provided between the first arm 5 and the second arm 11 in the exhaust chamber 13, and the upper arm 6 can adjust the flow path of the refrigerant medium in the exhaust chamber 13. The upper arm 6 is connected to the boss 9, and the upper arm 6 serves as a clamping structure of the protrusion at the root of the external valve plate limit plate. A second fracture 7 is left between the upper arm 6 and the inner wall of the exhaust chamber 13, and the upper arm 6 and the U-shaped groove 12 are arranged at intervals to disconnect the upper arm 6 from the inner wall of the cylinder head, thereby reducing the influence of the limit plate protrusion on the inner wall of the cylinder head when subjected to force, thereby reducing the deformation of the inner wall of the cylinder head and improving the sealing effect of the cylinder head.

[0035] In this embodiment, one end of the upper arm 6 extends to the opening end of the exhaust chamber 13, and the other end extends to the blocking end of the cylinder head. The upper arm 6 is widened and thickened to improve the structural strength of the upper arm 6, thereby improving the load-bearing capacity.

[0036] The U-shaped groove 12 includes an arc segment and a straight segment. The arc segment is located at the non-opening position of the U-shaped groove 12, and the straight segment is located on both sides of the opening position of the U-shaped groove 12. The first arm 5, the second arm 11 and the reinforcing rib 3 are connected to different positions of the U-shaped groove 12 for reinforcement from multiple points.

[0037] One end of the second arm 11 is connected to the arc section of the U-shaped groove 12, and the other end is connected to the boss 9, and a third fracture 10 is formed between the second arm 11 and the inner wall of the exhaust chamber 13 to improve the flow path of the refrigerant in the exhaust chamber 13 and reduce the exhaust resistance. One end of the first arm 5 is connected to the arc section of the U-shaped groove 12, and the other end is connected to the boss 9 and the inner wall of the exhaust chamber 13.

[0038] The main part of the first arm 5 is flush with the opening of the exhaust chamber 13, and the first break 4 is recessed in the exhaust chamber 13 relative to the main part of the first arm 5. After the cylinder head is installed on the cylinder body 2 through the valve plate, valve sheet, etc., the first break 4 forms a channel for the refrigerant to pass through.

[0039] Compared to Figure 1 In the present embodiment, the first break 4 on the first arm 5 is adjusted to the middle position, between the boss 9 and the U-shaped groove 12, so as to improve the flow path of the exhaust gas in the exhaust chamber 13, improve the flow path of the refrigerant medium in the exhaust chamber 13, reduce the impact on the inner wall of the cylinder head, increase the exhaust volume, improve the exhaust efficiency, reduce the exhaust temperature, and thus improve the cooling capacity.

[0040] like Figure 2 As shown, a sealing line 8 is provided on the end surface of the cover body 1 at the opening edge of the exhaust cavity 13, and the sealing line 8 is distributed around the opening of the exhaust cavity 13 to form a closed curve structure. It can be understood that the sealing line 8 can adopt a structure of a sealing groove with a sealing strip, or a structure of a pasted sealing ring. By providing the sealing line 8, the sealing performance of the cylinder head is enhanced, the refrigerant leakage is effectively prevented, the environment is protected, and the refrigeration effect of the entire refrigeration system is improved.

[0041] One end of the cover body 1 away from the opening of the exhaust chamber 13 is coated with a heat dissipation layer, and the heat dissipation layer is a graphene coating, which can better dissipate heat, reduce the operating temperature of the compressor, and improve the working efficiency and service life of the compressor.

[0042] Example 2

[0043] In another typical embodiment of the present invention, Figure 3 As shown, a compressor is proposed.

[0044] Using the compressor cylinder head as in Example 1, the compressor cylinder head is installed on the cylinder block 2 of the compressor, and the cover body 1 is installed on the cylinder block 2 through a valve plate, a valve sheet, etc.

[0045] A first arm 5 and a second arm 11 are provided in the exhaust chamber 13 of the cylinder head to establish a connection between the boss 9 on the inner wall of the exhaust chamber 13 and the U-shaped groove 12, and a reinforcing rib 3 is provided to support the U-shaped groove 12 from three positions, thereby increasing the strength of the U-shaped groove 12 and reducing damage to the U-shaped groove 12 during exhaust impact. A heat dissipation coating is provided at one end of the cylinder head away from the opening of the exhaust chamber 13 to improve the heat dissipation efficiency of the cylinder head, thereby increasing the service life of the compressor.

[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A compressor cylinder head, characterized in that: It includes a cover body, which is provided with a U-shaped groove for matching with the intake pipe, an exhaust chamber is provided on the side of the cover body facing the cylinder body, a boss distributed along the inner wall is provided on the side of the exhaust chamber away from the U-shaped groove, a first arm and a second arm are connected between the boss and the U-shaped groove, and a first fracture is provided on the section of the first arm between the boss and the U-shaped groove; the inner wall of the exhaust chamber where the boss is not distributed is connected to the U-shaped groove through reinforcing ribs.

2. The compressor cylinder head according to claim 1, characterized in that An upper arm is arranged between the first support arm and the second support arm in the exhaust cavity, the upper arm is connected to the boss, and a second fracture is left between the upper arm and the inner wall of the exhaust cavity.

3. The compressor cylinder head according to claim 2, characterized in that: The upper arm is spaced apart from the U-shaped groove.

4. The compressor cylinder head according to claim 1, characterized in that The U-shaped groove comprises an arc segment and a straight segment, and the first arm, the second arm and the reinforcing rib are connected to different positions of the U-shaped groove.

5. The compressor cylinder head according to claim 4, characterized in that One end of the second support arm is connected to the arc section of the U-shaped groove, and the other end is connected to the boss, and a third fracture is formed between the second support arm and the inner wall of the exhaust cavity.

6. The compressor cylinder head according to claim 4, characterized in that One end of the first arm is connected to the arc section of the U-shaped groove, and the other end is connected to the boss and the inner wall of the exhaust cavity.

7. The compressor cylinder head according to claim 1, characterized in that The main body of the first arm is flush with the opening of the exhaust cavity, and the first fracture is recessed in the exhaust cavity relative to the main body of the first arm.

8. The compressor cylinder head according to claim 1, characterized in that A sealing line is arranged on the end surface of the cover body at the edge of the exhaust cavity opening, and the sealing line is distributed around the exhaust cavity opening to form a closed curve structure.

9. The compressor cylinder head according to claim 8, characterized in that One end of the cover body away from the exhaust cavity opening is coated with a heat dissipation layer, and the heat dissipation layer is a graphene coating.

10. A compressor using the compressor cylinder head according to any one of claims 1 to 9.

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