Scroll compressor sealing gasket and scroll compressor

Abstract

The utility model discloses a sealing gasket of a scroll compressor. The sealing gasket comprises a body extending along a first direction, the guide hole and the first installation hole are formed in the body, the body extends from the wall face used for forming the guide hole to the direction of the guide hole to form a protrusion, and the protrusion is used for abutting against a guide pin. By means of the sealing gasket, the assembling efficiency of the scroll compressor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a scroll compressor sealing gasket and a scroll compressor. Background Art

[0002] The guide hole set on the existing sealing gasket is a perfect circular hole. During the installation process, it is necessary to hold the sealing gasket, press the sealing gasket to a preset position, and then insert the positioning pin, or install the positioning pin first, and then hold the sealing gasket and press the sealing gasket to the preset position. Since the sealing gasket is in contact with lubricating oil when held, it is necessary to wash hands after installation, otherwise it is inconvenient to install subsequent components, thereby affecting the installation efficiency. Utility Model Content

[0003] In order to overcome the defects in the prior art, an embodiment of the utility model provides a scroll compressor sealing gasket and a scroll compressor, which can improve the assembly efficiency of the scroll compressor.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses a scroll compressor sealing gasket in a first aspect, comprising:

[0006] a body extending along a first direction;

[0007] A guide hole and a first mounting hole are formed on the body,

[0008] The main body is provided with a protrusion extending from a wall surface for forming the guide hole toward the guide hole, and the protrusion is used to abut against the guide pin.

[0009] Preferably, there are multiple protrusions, and the multiple protrusions are arranged at intervals along the circumference of the guide hole.

[0010] Preferably, a protective layer is provided on the surface of the protrusion, the material of the protrusion is the same as that of the body, and the thickness of the protrusion is the same or substantially the same as that of the body.

[0011] Preferably, L1=0.1-0.2*L2, wherein L1 is the maximum length extending from the wall surface of the guide hole toward the guide hole, and L2 is the diameter of the guide hole.

[0012] Preferably, the sealing gasket further comprises a sealing ridge formed on the body, and the sealing ridge extends along a first direction.

[0013] Preferably, the body and the sealing edge are both annular.

[0014] Preferably, the number of the sealing edges is at least two, all of the sealing edges are located on the same side of the body, a groove is formed between at least two of the sealing edges, and the guide hole and the first mounting hole are arranged in the groove.

[0015] Preferably, the guide holes and the first mounting holes are arranged at intervals along the first direction.

[0016] The second aspect of the utility model discloses a scroll compressor, and the scroll compressor comprises any scroll compressor sealing gasket disclosed in the first aspect.

[0017] Preferably, the compressor comprises:

[0018] Compressor body;

[0019] A compressor cylinder block and a rear cover formed on the body,

[0020] Among them, a second mounting hole is provided on the compressor cylinder body and the rear cover, a sealing structure is installed between the compressor cylinder body and the rear cover, the sealing gasket is installed on the sealing structure, and the mounting bolts pass through the first mounting hole and the second mounting hole to install the sealing structure on the compressor.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] 1. The present application forms a fixed structure with the guide pin and the sealing gasket by arranging a protrusion in the guide hole. During the installation of the sealing gasket, the sealing gasket is pressed into place by holding the guide pin. There is no need for direct contact with the sealing gasket by hand to cause contamination of lubricating oil, which requires cleaning before continuing installation. The assembly efficiency of the scroll compressor can be improved.

[0023] 2. The present application can enhance the sealing effect of the sealing gasket by providing at least two sealing edges, thereby effectively sealing the compressor, and is particularly suitable for large-displacement scroll compressors.

[0024] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1It is a schematic diagram of the scroll compressor of the utility model.

[0027] Figure 2 It is an enlarged schematic diagram of the sealing structure of the scroll compressor of the utility model.

[0028] Figure 3 It is an enlarged schematic diagram of the protrusion structure in the guide hole of the utility model.

[0029] Reference numerals of the above drawings: 1, sealing structure; 2, sealing pad; 3, guide hole; 4, guide pin; 5, protrusion; 6, sealing edge; 7, groove; 8, first mounting hole DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The following is an explanation of the implementation of the utility model through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the utility model from the contents disclosed in this specification. The utility model can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without deviating from the concept of the utility model. In addition, the drawings of the utility model are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the utility model in detail, but the disclosed contents are not intended to limit the scope of protection of the utility model.

[0032] The directional words appearing in the following description are all directions shown in the figure, and do not limit the specific structure of the scroll compressor bottom plate locking structure, base assembly and scroll compressor of the utility model. In the description of the utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0033] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0034] The scroll compressor sealing gasket provided by the utility model is used for being installed on the sealing structure of the scroll compressor to achieve sealing of the compressor. By arranging a protrusion in a guide hole on the sealing gasket, the assembly efficiency of the scroll compressor can be improved.

[0035] In order to better understand the present invention, Figures 1 to 3 The scroll compressor sealing gasket of the embodiment of the utility model is described in detail.

[0036] Reference Figure 1 to Figure 3 As shown, according to one embodiment of the utility model, a scroll compressor sealing gasket is provided, wherein the sealing gasket 2 is provided with a guide hole 3, a first mounting hole 8 and a sealing edge 6, a protrusion 5 is provided in the guide hole 3, the protrusion 5 is used to abut against the guide pin 4, a groove 7 is formed between at least two sealing edges 6, and the main body of the sealing gasket 2 is provided on the sealing structure 1.

[0037] By means of the above-mentioned structure, during the installation process, the sealing gasket in the embodiment of the present application can contact the protrusion 5 through the guide pin 4 to form a fixed structure. During installation, the sealing gasket 2 can be pressed onto the sealing structure 1 by holding the guide pin 4. There is no need for direct hand contact with the sealing gasket 2 to cause contamination of the lubricating oil on the sealing gasket 2, which requires cleaning during the subsequent installation process, thereby reducing the installation efficiency. The assembly efficiency of the scroll compressor can be improved, and the sealing effect of the sealing gasket 2 can be enhanced to effectively seal the compressor. It is particularly suitable for large-displacement scroll compressors.

[0038] Specifically, refer to Figure 2 As shown, the present application shows an embodiment of a sealing gasket. In the embodiment of the present application, the sealing gasket 2 extends in a ring shape along a first direction, and the first direction is the direction around the sealing gasket 2. In some possible embodiments, the material of the sealing gasket 2 can be selected from high-strength steel plates that are corrosion-resistant, resistant to atmospheric corrosion, and have good stamping and welding properties, such as SPCC materials. And in order to prevent the material of the sealing gasket 2 from oxidizing in the air, a protective layer is provided on the surface of the sealing gasket 2. The selected protective layer needs to have high stability in terms of hardness, strength, tensile strength, etc., and needs to have good wear resistance, compression deformation resistance, fatigue resistance, corrosion resistance, etc. For example, NBR material can be selected.

[0039] like Figure 2As shown, two sealing edges 6 are provided on the sealing gasket 2. The two sealing edges 6 are strip-shaped protrusions formed on the end surface of the sealing gasket 2 for sealing. The two sealing edges 6 extend in a ring shape along the first direction and are both located on the same side of the body of the sealing gasket 2. A groove 7 is formed between the two sealing edges 6. A guide hole 3 and a first mounting hole 8 are provided in the groove 7. The guide hole 3 and the first mounting hole 8 are arranged at intervals along the first direction.

[0040] The existing sealing gasket is provided with a single sealing edge, and the sealing of the sealing gasket with this structure cannot meet the sealing requirements of large-displacement scroll compressors. The present application provides two sealing edges 6 to enhance the sealing effect of the sealing gasket 2 and effectively seal the scroll compressor, and is particularly suitable for large-displacement scroll compressors.

[0041] In some possible embodiments, a plurality of sealing edges 6 may be provided on the sealing gasket 2 , and the plurality of sealing edges 6 are all located on the same side of the body of the sealing gasket 2 , and a groove is formed between at least two sealing edges 6 .

[0042] like Figure 3 As shown, a protrusion 5 is provided in the guide hole 3. The protrusion 5 is formed by extending inward from the wall surface of the sealing gasket 2 body for forming the guide hole 3. The protrusions 5 are arranged at intervals along the circumference of the guide hole 3. The protrusions 5 are used to contact with the guide pin 4 to form a fixed structure to install the sealing gasket 2 on the sealing structure 1.

[0043] The sealing gasket 2 is installed on the sealing structure 1, and the installation steps include:

[0044] Hold the guide pin 4 and pass it through the guide hole 3, and press the guide pin 4 onto the sealing gasket 2;

[0045] Hold the guide pin 4 and press the sealing gasket 2 onto the sealing structure 1 .

[0046] After the installation is completed, other components of the compressor can be directly installed. Since the hands touch the guide pin 4 and will not touch the lubricating oil on the sealing gasket 2, other components can be assembled after the sealing gasket 2 is installed, which can improve the assembly efficiency of the compressor.

[0047] The material and protective layer of the protrusion 5 are consistent with those of the sealing gasket 2. A high-strength steel plate that is resistant to corrosion and atmospheric corrosion and has excellent stamping and welding properties can be selected, as well as a protective layer with high stability, wear resistance, compression deformation resistance, and fatigue resistance. The thickness of the protrusion 5 and the sealing gasket 2 are set to be roughly the same.

[0048] Since the protrusion 5 is to form a fixed structure with the guide pin 4, and usually, the thickness of the sealing gasket 2 is very thin, the protrusion 5 is substantially the same as the thickness of the sealing gasket 2, and therefore the thickness of the protrusion 5 is also very thin. If the protrusion 5 protrudes too long, the length is the distance extending inward from the wall surface of the guide hole 3, the protrusion part will open in the direction of the guide hole 3 away from the circular surface. If the opening angle is too large, it will cause the sealing gasket 2 at the corresponding position of the guide hole 3 to deform. At this time, the force on this part will be relatively concentrated, and the sealing gasket 2 is easily damaged, resulting in poor sealing. Therefore, the length of the protrusion 5 should not be set too long.

[0049] Preferably, it can be set to L1=0.1~0.2*L2, where L1 is the maximum length of the wall surface of the sealing gasket 2 body used to form the guide hole 3, and L2 is the diameter of the guide hole. The applicant found that when the maximum length of the wall surface of the guide hole 3 extending inward is within this range, the protrusion 5 can form a good fixing structure with the guide pin 4, and will not cause the sealing gasket 2 at the corresponding position of the guide hole 3 to deform.

[0050] In some possible embodiments, a plurality of protrusions 5 may be formed by extending inward from the wall surface of the guide hole 3 , and the plurality of protrusions 5 are arranged at intervals along the circumference of the guide hole 3 .

[0051] The embodiment of the present application further discloses a scroll compressor, which includes the sealing gasket 2 disclosed above.

[0052] Preferably, the scroll compressor comprises:

[0053] Compressor body;

[0054] A compressor cylinder block and a rear cover formed on the body,

[0055] Among them, a second mounting hole is provided on the compressor cylinder body and the rear cover, a sealing structure 1 is installed between the compressor cylinder body and the rear cover, the sealing gasket 2 is installed on the sealing structure 1, and the mounting bolts pass through the first mounting hole 8 and the second mounting hole to install the sealing structure 1 on the compressor.

[0056] In summary, the present application provides a protrusion in the guide hole so that the guide pin and the sealing gasket form a fixed structure. During the installation of the sealing gasket, the sealing gasket is pressed into place by holding the guide pin, thereby improving the assembly efficiency of the scroll compressor. In addition, providing at least two sealing edges can enhance the sealing effect of the sealing gasket and effectively seal the compressor, which is particularly suitable for scroll compressors with large displacement.

[0057] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A scroll compressor sealing gasket, characterized in that: include: a body extending along a first direction; A guide hole and a first mounting hole are formed on the body, The main body is provided with a protrusion extending from a wall surface for forming the guide hole toward the guide hole, and the protrusion is used to abut against the guide pin.

2. A scroll compressor sealing gasket according to claim 1, characterized in that: The number of the protrusions is multiple, and the multiple protrusions are arranged at intervals along the circumference of the guide hole.

3. A scroll compressor sealing gasket according to claim 1, characterized in that: A protective layer is provided on the surface of the protrusion, the material of the protrusion is the same as that of the body, and the thickness of the protrusion is the same or substantially the same as that of the body.

4. A scroll compressor sealing gasket according to claim 1, characterized in that: L1=0.1-0.2*L2, wherein L1 is the maximum length extending from the wall surface of the guide hole toward the guide hole, and L2 is the diameter of the guide hole.

5. The scroll compressor sealing gasket according to claim 1, characterized in that: The sealing pad further includes a sealing ridge formed on the body, wherein the sealing ridge extends along a first direction.

6. A scroll compressor sealing gasket according to claim 5, characterized in that: The body and the sealing edge are both annular.

7. A scroll compressor sealing gasket according to claim 5, characterized in that: The number of the sealing edges is at least two, all of the sealing edges are located on the same side of the body, a groove is formed between at least two of the sealing edges, and the guide hole and the first mounting hole are arranged in the groove.

8. A scroll compressor sealing gasket according to claim 7, characterized in that: The guide holes and the first mounting holes are arranged at intervals along the first direction.

9. A scroll compressor, characterized in that: The scroll compressor comprises the sealing gasket according to any one of claims 1-8.

10. A scroll compressor according to claim 9, characterized in that: include: Compressor body; A compressor cylinder block and a rear cover formed on the body, Among them, a second mounting hole is provided on the compressor cylinder body and the rear cover, a sealing structure is installed between the compressor cylinder body and the rear cover, the sealing gasket is installed on the sealing structure, and the mounting bolts pass through the first mounting hole and the second mounting hole to install the sealing structure on the compressor.

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