Compressor head cover assembly

Abstract

The utility model relates to the technical field of compressor accessories, specifically a compressor top cover assembly, including top cover body, still include: flange plate, fixedly connected at the bottom surface of top cover body, the bottom surface of flange plate has successively set up mounting groove no.

Description

Technical Field

[0001] This utility model relates to the field of compressor parts technology, specifically a compressor top cover assembly. Background Technology

[0002] Compressors (such as refrigerator compressors and air conditioner compressors) are the core components of refrigeration systems. They compress low-temperature, low-pressure gases into high-temperature, high-pressure gases through mechanical motion (such as piston reciprocating, rotor rotation, or impeller high-speed rotation), providing power for refrigeration cycles, aerodynamic systems, etc.

[0003] The reliability of the seal between the compressor top cover and the housing is crucial. Existing technologies mostly use a single rubber seal ring. Under long-term vibration, temperature cycling and pressure pulse, the seal ring is prone to stress relaxation, permanent deformation or fretting wear, resulting in refrigerant leakage, which in turn reduces compressor efficiency and lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a compressor top cover assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A compressor top cover assembly includes a top cover body and further includes:

[0007] A flange plate is fixedly connected to the bottom surface of the top cover body. The bottom surface of the flange plate has three mounting grooves from the inside to the outside: mounting groove one, mounting groove two, and mounting groove three.

[0008] The main sealing ring is detachably embedded inside the mounting groove.

[0009] The annular rib can be detachably installed inside the second mounting slot.

[0010] The secondary sealing ring is removably embedded inside the mounting groove three.

[0011] Furthermore, the annular rib includes a fixing ring, an annular post, and a contact ring. The top surface of the contact ring has an annular groove that slides with the annular post. Several springs are fixedly connected at equal angles between the bottom surface of the fixing ring and the top surface of the contact ring.

[0012] Furthermore, the outer wall of the annular column is provided with a number of sliding grooves at equal angles, and the inner wall of the annular groove is fixedly connected with a number of sliders at equal angles, and the number of sliders are slidably connected to the number of sliding grooves respectively.

[0013] Furthermore, the second mounting groove has several mating grooves at equal angles inside.

[0014] Furthermore, the top surface of the fixing ring is fixedly connected with several plug-in blocks at equal angles. The plug-in blocks are plugged into the mating groove. The top surface of the plug-in blocks is screwed with screws. The top surface of the flange plate and the position corresponding to the mating groove are all provided with threaded holes that mate with the screws.

[0015] Furthermore, the insert block has an internal cavity, and two snap-fit ​​blocks are slidably disposed inside the cavity. The two snap-fit ​​blocks are fixedly connected by a spring, and the inner wall of the mating groove has a snap-fit ​​groove that engages with the two snap-fit ​​blocks.

[0016] Furthermore, the main sealing ring has a rectangular cross-section, and the secondary sealing ring has a circular cross-section.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By sequentially opening mounting groove 1, mounting groove 2, and mounting groove 3 on the bottom surface of the flange plate from the inside to the outside, with the main sealing ring installed in mounting groove 1, the annular rib installed in mounting groove 2, and the secondary sealing ring installed in mounting groove 3, multiple seals are achieved. When any part wears or ages due to long-term use, it is not necessary to replace the entire top cover body; only the corresponding part needs to be replaced, thus reducing maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic cross-sectional view of the present invention;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the flange plate in this utility model;

[0021] Figure 3 This is a schematic diagram showing the disassembled annular rib structure in this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the structure of region A in this utility model;

[0023] Figure 5 This is an enlarged schematic diagram of the structure of region B in this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the plug-in block in this utility model.

[0025] In the diagram: 100, Top cover body; 200, Flange plate; 210, Mounting groove one; 220, Mounting groove two; 230, Mounting groove three; 240, Butt joint groove; 300, Main sealing ring; 400, Annular rib; 410, Fixing ring; 420, Annular column; 421, Slide groove; 430, Insert block; 431, Snap-fit ​​block; 432, Spring one; 433, Screw; 440, Contact ring; 441, Annular groove; 442, Spring two; 443, Slider; 500, Secondary sealing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 In this embodiment of the present invention, a compressor top cover assembly includes a top cover body 100, a flange plate 200, a main sealing ring 300, an annular rib 400, and a secondary sealing ring 500. The flange plate 200 is fixedly connected to the bottom surface of the top cover body 100. The bottom surface of the flange plate 200 has, from the inside to the outside, three mounting grooves: a first mounting groove 210, a second mounting groove 220, and a third mounting groove 230. The main sealing ring 300 is detachably embedded inside the first mounting groove 210, the annular rib 400 is detachably installed inside the second mounting groove 220, and the secondary sealing ring 500 is detachably embedded inside the third mounting groove 230. The main sealing ring 300 has a rectangular cross-section, and the secondary sealing ring 500 has a circular cross-section. The main sealing ring 300 can be made of fluororubber, and the secondary sealing ring 500 can be made of hydrogenated nitrile rubber.

[0028] Specifically, when the top cover body 100 is bolted onto the compressor housing, the main sealing ring 300, the annular rib 400, and the secondary sealing ring 500 provide a sealing function. The main sealing ring 300 is located on the innermost side, and its rectangular cross-section provides a larger support area. It is made of fluororubber, which is more resistant to high temperatures. The secondary sealing ring 500 is located on the outermost side, and its main function is to prevent dust, water, and external contaminants. The annular rib 400, located in the middle, is a rigid metal seal that bears the main mechanical pressure and has anti-extrusion function. The main sealing ring 300, the annular rib 400, and the secondary sealing ring 500 can all be replaced individually, which reduces the life cycle cost of the top cover body 100.

[0029] Example 1

[0030] like Figure 3-5As shown, in this embodiment, the annular rib 400 includes a fixing ring 410, an annular post 420, and a contact ring 440. The annular post 420 is fixedly connected to the bottom surface of the fixing ring 410. The top surface of the contact ring 440 has an annular groove 441 that slides with the annular post 420. A plurality of springs 442 are fixedly connected at equal angles between the bottom surface of the fixing ring 410 and the top surface of the contact ring 440. The outer wall of the annular post 420 has a plurality of sliding grooves 421 at equal angles. The inner wall of the annular grooves 441 has a plurality of sliders 443 fixedly connected at equal angles. The plurality of sliders 443 are slidably connected to the plurality of sliding grooves 421 respectively.

[0031] In this embodiment, under the elastic force of spring 442, contact ring 440 will default to moving away from fixed ring 410, so that the bottom of contact ring 440 will protrude from the bottom surface of main sealing ring 300 and secondary sealing ring 500. When top cover body 100 is installed on compressor housing, contact ring 440 will first contact compressor housing flange surface and be compressed, so that spring 442 is compressed. The elasticity of spring 442 can compensate for the change in sealing surface gap caused by vibration, temperature change or slight wear, so as to maintain a relatively effective contact pressure. Slider 443 is slidably connected to slide groove 421, so that contact ring 440 can only move in the vertical direction of slide groove 421, avoiding contact ring 440 from rotating when rubbing against compressor housing flange surface.

[0032] like Figure 2-4 As shown, in this embodiment, the interior of the mounting groove 220 has several mating grooves 240 at equal angles. Several plug-in blocks 430 are fixedly connected to the top surface of the fixing ring 410 at equal angles. The plug-in blocks 430 are plugged into the mating grooves 240, and screws 433 are screwed onto the top surface of the plug-in blocks 430. Threaded holes for engaging with the screws 433 are provided at positions corresponding to the mating grooves 240 on the top surface of the flange plate 200.

[0033] In practice, the plug-in block 430 and the mating groove 240 are plugged into each other, so that the annular rib 400 can be quickly positioned when it is installed, which is convenient for subsequent fastening. During installation, the plug-in block 430 on the top surface of the fixing ring 410 is first inserted into the mating groove 240 for initial positioning. Then, the screw 433 is screwed into the threaded hole on the top surface of the flange plate 200, so that the screw 433 fixes the flange plate 200 and the plug-in block 433 together, which is convenient for installation and disassembly.

[0034] Example 2

[0035] Based on Example 1, in order to further enhance the connection strength between the annular rib 400 and the flange plate 200.

[0036] like Figure 4 and Figure 6As shown, in this embodiment, the insert block 430 has a cavity inside, and two snap-fit ​​blocks 431 are slidably disposed inside the cavity. The two insert blocks 430 are T-shaped and symmetrical to each other. The two snap-fit ​​blocks 431 are fixedly connected by a spring 432. The inner wall of the mating groove 240 is provided with a snap-fit ​​groove that engages with the two snap-fit ​​blocks 431.

[0037] In practice, under the elastic force of spring 432, the two locking blocks 431 will move closer to each other and retract inside the cavity of the plug block 430. After the plug block 430 is inserted into the mating groove 240, the screw 433 is screwed in from top to bottom. The bottom end of the screw 433 is conical. As the screw 433 descends, its conical bottom end will insert between the two locking blocks 431, thereby pushing the two locking blocks 431 to move in opposite directions, protruding from the side wall of the plug block 430 and engaging with the locking groove in the mating groove 240, thus enhancing the connection effect.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compressor top cover assembly, comprising a top cover body (100), characterized in that, Also includes: The flange plate (200) is fixedly connected to the bottom surface of the top cover body (100). The bottom surface of the flange plate (200) is provided with mounting groove 1 (210), mounting groove 2 (220) and mounting groove 3 (230) from the inside to the outside. The main sealing ring (300) is detachably embedded inside the mounting groove (210); The annular rib (400) is detachably installed inside the mounting groove two (220); The secondary sealing ring (500) is removably embedded inside the mounting groove three (230).

2. The compressor top cover assembly according to claim 1, characterized in that, The annular rib (400) includes a fixing ring (410), an annular post (420) and a contact ring (440). The top surface of the contact ring (440) is provided with an annular groove (441) that slides with the annular post (420). Several springs (442) are fixedly connected at equal angles between the bottom surface of the fixing ring (410) and the top surface of the contact ring (440).

3. The compressor top cover assembly according to claim 2, characterized in that, The outer wall of the annular column (420) is provided with several sliding grooves (421) at equal angles. The inner wall of the annular groove (441) is fixedly connected with several sliders (443) at equal angles. The sliders (443) are slidably connected to the several sliding grooves (421) respectively.

4. The compressor top cover assembly according to claim 1, characterized in that, The interior of mounting slot 2 (220) has several mating slots (240) at equal angles.

5. The compressor top cover assembly according to claim 2, characterized in that, The top surface of the fixing ring (410) is fixedly connected with several plug-in blocks (430) at equal angles. The plug-in blocks (430) are plugged into the mating groove (240). The top surface of the plug-in blocks (430) is screwed with screws (433). The top surface of the flange plate (200) and the position corresponding to the mating groove (240) are all provided with threaded holes that mate with the screws (433).

6. The compressor top cover assembly according to claim 5, characterized in that, The plug block (430) has an internal cavity, and two snap-fit ​​blocks (431) are slidably disposed inside the cavity. The two snap-fit ​​blocks (431) are fixedly connected by a spring (432). The inner wall of the mating groove (240) has a snap-fit ​​groove that engages with the two snap-fit ​​blocks (431).

7. The compressor top cover assembly according to claim 1, characterized in that, The main sealing ring (300) has a rectangular cross-section, and the secondary sealing ring (500) has a circular cross-section.

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