Muddy water protection structure for variable-discharge compressor
By improving the clutch structure and dust prevention measures, the problem of insufficient protection for variable displacement compressors in muddy and wet environments has been solved, improving protection capabilities and reliability, and reducing failure rate and lubricating oil leakage.
Patent Information
- Application Number
- CN202520337736.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing variable displacement compressors have insufficient protection performance in muddy and wet environments, which leads to damage to the pulley bearing seals and affects the stability and reliability of the compressor.
An improved clutch structure is adopted, including a suction cup, pulley, shaft seal structure, bearing dust cover, isolation assembly, dustproof structure and process hole seal plug. Torque is transmitted magnetically to enhance sealing performance. PI membrane and seal plugs of different materials are used to prevent mud, water and dust from entering.
It improves the compressor's protection capabilities in muddy and wet environments, reduces the failure rate, minimizes lubricating oil leakage, and ensures reliable operation of the compressor in harsh environments.
Smart Images
Figure CN223578150U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a compressor equipment technical field especially relates to a mud water protection structure for variable displacement compressor. BACKGROUND
[0002] After the vehicle passes the silt road section, the silt enters the front cabin lower guard plate and the compressor pulley inside, causes the compressor pulley bearing to enter the silt, and the internal silt increases with time, causes the pulley internal bearing seal to be damaged, needs to promote the compressor clutch self protection level, improves the stability of the compressor under the mud water environment, reduces the damage of mud water to the compressor, therefore, we propose a mud water protection structure for variable displacement compressor. SUMMARY
[0003] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.
[0004] The utility model provides a mud water protection structure for variable displacement compressor can solve the clutch self protection performance problem, specific scheme is as follows:
[0005] A mud water protection structure for variable displacement compressor,
[0006] It includes clutch, the clutch includes sucking disc, pulley, shaft seal structure and coil,
[0007] Bearing dust cover, fixedly installed at one side of shaft seal structure,
[0008] Isolation assembly, between the pulley and sucking disc,
[0009] Dustproof structure, installs at the surface of sucking disc outside,
[0010] Process hole, open in the surface of sucking disc outside, and with the recess of pulley outside intercommunication.
[0011] As a preferred technical scheme of the utility model, the shaft seal structure includes bearing, the bearing includes outer ring and inner ring, the inside of bearing is provided with steel ball and retainer.
[0012] As a preferred technical scheme of the utility model, the bearing structure further includes outer ring fixed lip and second sealing lip, the outer ring fixed lip and second sealing lip are respectively close to the outer ring and inner ring, and the side away from the outer ring fixed lip is respectively provided with first sealing lip, third sealing lip.
[0013] As a preferred technical scheme of the utility model, the isolation component is an isolation plate, and the isolation plate is arranged in the groove outside the pulley.
[0014] As a preferred technical scheme of the utility model, the dustproof structure is a dustproof sticker, and the dustproof sticker is provided with a PI film.
[0015] As a preferred technical scheme of the utility model, the process hole is internally provided with a plugging plug, and the material of the plugging plug is any one of metal, rubber and plastic.
[0016] Compared with the prior art, the utility model can realize at least one of the following beneficial effects:
[0017] Through the improvement of the structure of the clutch, the protection ability of the compressor to the muddy water is improved, the failure probability of the compressor is reduced, the process hole balances the internal and external pressure to prevent the suction cup from falling off, the improved shaft seal structure reduces the lubricating oil leakage, and the reliable operation of the compressor in the harsh environment is ensured.
[0018] Other features and advantages of the utility model will be described in the subsequent specification, and some become apparent from the specification, or are understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structure specially pointed out in the written specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the utility model embodiment, the drawings needed to be used in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor. Among them:
[0020] Fig. 1 It is a bearing dust cover schematic view for the pulley of the utility model;
[0021] Fig. 2 It is a dustproof sticker schematic view for the suction cup of the utility model;
[0022] Fig. 3 It is an improved bearing structure schematic view of the utility model;
[0023] Among them, the reference signs are as follows:
[0024] 1, retainer; 2, inner ring; 3, first sealing lip; 4, third sealing lip; 5, outer ring fixed lip; 6, outer ring; 7, steel column; 8, second sealing lip; 9, PI film; 10, process hole; 11, bearing dust cover; 12, bearing; 13, suction cup; 14, coil. DETAILED DESCRIPTION
[0025] The preferred embodiments of the utility model will be described below in detail in conjunction with the drawings, wherein the drawings form a part of the utility model and are used together with the embodiments of the utility model to explain the principles of the utility model.
[0026] Referring to Figs. 1-3 The utility model provides a mud water protection structure for variable displacement compressor,
[0027] Including clutch, clutch includes sucking disc 13, pulley, shaft seal structure and coil 14;
[0028] Bearing dust cover 11 is fixedly installed at one side of the shaft seal structure;
[0029] Isolation component is arranged between the pulley and the sucking disc 13;
[0030] Dustproof structure is installed at the surface outside the sucking disc 13;
[0031] Process hole 10 is set up at the surface outside the sucking disc 13 and is communicated with the groove outside the pulley.
[0032] The shaft seal structure includes bearing 12, and the bearing 12 includes outer ring 6 and inner ring 2, and the inside of the bearing 12 is provided with steel ball 7 and retainer 1;
[0033] When the coil 14 is electrified, the magnetic force is generated to attract the sucking disc 13, so that the sucking disc 13 is drivingly connected with the pulley, thereby transmitting the torque of the pulley to the main shaft in the compressor body. The isolation component is arranged between the pulley and the sucking disc 13, which can reduce the probability of mud and small particles invading the bearing 12, and significantly improve the protection ability of mud. In addition, the dustproof structure is arranged on the surface of the sucking disc 13, which is used to adsorb or block small particles such as dust, thereby reducing the possibility of mud entering the inside of the pulley.
[0034] The bearing structure further includes outer ring fixed lip 5 and second sealing lip 8, and the outer ring fixed lip 5 and the second sealing lip 8 are respectively tightly attached to the outer ring 6 and the inner ring 2, and the first sealing lip 3 and the third sealing lip 4 are respectively arranged on the side away from the outer ring fixed lip 5;
[0035] It should be noted that the improved shaft seal structure mainly improves the sealing property of the bearing 12, which on the one hand reduces the probability of mud invading the inside of the bearing 12, and on the other hand relies on the third sealing lip 4 to reduce the leakage of lubricating oil in the bearing 12.
[0036] The isolation component is an isolation plate, which is arranged in the groove outside the pulley, can reduce the probability of mud and small particles invading the bearing, significantly improve the protection ability of mud, and the plate structure of the isolation plate is easy to control the thickness and occupies small space.
[0037] The dustproof structure is a dustproof sticker, and a PI film 9 is arranged on the dustproof sticker. The PI film 9 has an extremely fine microstructure and excellent waterproof performance, and dust particles are difficult to penetrate. The PI film 9 can effectively block dust, mud, and tiny particles from entering the protected area. The PI film 9 has high tensile strength and flexibility and is not easy to break or tear. Even if it is subjected to certain external forces, vibration, or bending, it can still maintain the integrity of the structure and continue to play a dustproof function.
[0038] The PI film 9 is used to adsorb dust and other tiny particles to reduce the probability of entering the inside of the pulley, thereby reducing the wear probability of the main shaft and the bearing 12 and reducing the possibility of mud entering the inside of the pulley.
[0039] The process hole 10 is internally provided with a plugging plug, and the material of the plugging plug is any one of metal, rubber, and plastic. The process hole 10 is used to ensure the pressure balance on both sides and prevent the suction cup 13 from being separated from the installation position under the high pressure in the internal space after installation. After the suction cup 13 is installed in place, the process hole is closed by the plugging plug to reduce the entry path of mud and dust.
[0040] It should be noted that the rubber material of the plugging plug has excellent elasticity and can closely fit various irregular surfaces, fill gaps and holes, and effectively prevent mud and dust from penetrating. When subjected to external pressure, the rubber can deform to adapt to different shapes and sizes, thereby forming a reliable sealing effect and ensuring the tightness of the plugging.
[0041] The metal material of the plugging plug has high strength and rigidity and can withstand large pressure and external force. In the plugging operation, the metal material is not easy to deform or damage when subjected to impact, extrusion, and other forces caused by mud and dust, and can maintain the stability and integrity of the plugging structure to effectively block the intrusion of mud and dust for a long time.
[0042] In addition, the plastic material of the plugging plug has good elasticity and flexibility and can closely fit the plugging surface, fill tiny gaps and holes, and effectively prevent mud and dust from penetrating.
[0043] Based on the above, different materials of the plugging plug can be selected according to different use scenarios in actual operation to ensure better plugging effect at the process hole 10.
[0044] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0045] The terms "first", "second", "third", "fourth" and the like used in the description of the embodiments of the present application, if any, are used for the purpose of distinguishing between similar objects and do not necessarily have to be taken in their usual sense. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be carried out in other than the order shown or described herein. Furthermore, the terms "comprising" and "including" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or apparatus that comprises a list of steps or units not necessarily limited to those specifically listed, but can include other steps or units not expressly listed or inherent to such process, method, product or apparatus.
[0046] In the embodiments of the present application or impliedly referred to devices or elements must have a specific orientation, constructed and operated in a specific orientation, therefore cannot be understood as a limitation of the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified precisely and specifically.
[0047] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.
Claims
1. A mud protection structure for variable displacement compressor, characterized in that: It comprises a clutch, the clutch comprises a suction cup (13), a pulley, a shaft seal structure and a coil (14); A bearing dust cover (11) is fixedly installed on one side of the shaft seal structure; An isolation assembly is arranged between the pulley and the suction cup (13); A dustproof structure is installed on the surface outside the suction cup (13); A process hole (10) is arranged on the surface outside the suction cup (13) and communicates with the groove outside the pulley.
2. The mud protection structure for a variable displacement compressor according to claim 1, characterized in that: The shaft seal structure comprises a bearing (12), the bearing (12) comprises an outer ring (6) and an inner ring (2), and the bearing (12) is internally provided with steel balls (7) and a retainer (1).
3. The slush protection structure for a variable displacement compressor according to claim 2, characterized in that: The bearing structure further comprises an outer ring fixed lip (5) and a second sealing lip (8), which are respectively tightly attached to the outer ring (6) and the inner ring (2).
4. The slush protection structure for a variable displacement compressor according to claim 1, characterized in that: The side away from the outer ring fixed lip (5) is respectively provided with a first sealing lip (3) and a third sealing lip (4).
5. The slush protection structure for a variable displacement compressor according to claim 1, characterized in that: The isolation assembly is an isolation plate arranged in the groove outside the pulley.
6. The slush protection structure for a variable displacement compressor according to claim 1, characterized in that: The dustproof structure is a dustproof sticker, and a PI film (9) is arranged on the dustproof sticker. The process hole (10) is internally provided with a blocking plug, and the material of the blocking plug is any one of metal, rubber and plastic.