Scroll compressor and air conditioner

Abstract

The scroll compressor comprises an exhaust cover assembly and a static scroll plate assembly, the static scroll plate assembly comprises a static plate, an exhaust valve plate, a valve plate baffle and a valve plate fixing piece, and the valve plate fixing piece sequentially penetrates through the valve plate baffle and the exhaust valve plate to be fixed to the static plate. A first limiting part is arranged on the valve plate fixing piece; the exhaust cover assembly comprises an exhaust cover, and the end face, facing the static disc, of the exhaust cover is provided with a second limiting part. The first limiting part and the second limiting part are matched to be used for limiting and fastening the valve plate fixing piece. According to the compressor, the first limiting part and the second limiting part are matched to limit and fasten the valve plate fixing piece, so that the valve plate fixing piece can be effectively restrained, the valve plate fixing piece is prevented from loosening, and the reliability of the compressor is improved.

Description

Technical Field

[0001] The utility model relates to the field of compressors, in particular to a scroll compressor and an air conditioner. Background Art

[0002] In related technologies, in high-end application fields such as automobiles, fighter jets, and aerospace, compressors and air-conditioning systems need to adapt to complex and changeable operating postures, which poses a severe challenge to the durability of the equipment. In particular, the exhaust anti-reversal valve plate frequently impacts the valve plate baffle under continuous operation, causing severe vibration. This vibration is transmitted to the stator valve seat bolts, and long-term accumulation causes the bolts to loosen, seriously affecting the anti-reversal mechanism and overall reliability of the compressor. Utility Model Content

[0003] The embodiments of the utility model provide a scroll compressor and an air conditioner, aiming to solve the problem that the exhaust valve plate of the existing scroll compressor will repeatedly impact and slap the valve plate baffle, causing vibration, which may cause the fastening bolts to loosen.

[0004] The utility model provides a scroll compressor, comprising:

[0005] The fixed scroll assembly comprises a fixed scroll, an exhaust valve plate, a valve plate baffle and a valve plate fixing member, wherein the valve plate fixing member passes through the valve plate baffle and the exhaust valve plate in sequence and is fixed on the fixed scroll, and a first limiting portion is provided on the valve plate fixing member;

[0006] An exhaust cover assembly comprises an exhaust cover, wherein a second limiting portion is provided on an end surface of the exhaust cover facing the static disk;

[0007] Wherein, the first limiting portion cooperates with the second limiting portion to limit and fasten the valve plate fixing piece.

[0008] In the scroll compressor provided by the utility model, the first limiting portion and the second limiting portion are concave-convex matched.

[0009] In the scroll compressor provided by the utility model, the first limiting portion and the second limiting portion are concave-convex matched.

[0010] In the scroll compressor provided by the utility model, a rotation-stopping structure is formed between the peripheral side wall of the first limiting portion and the peripheral side wall of the second limiting portion.

[0011] In the scroll compressor provided by the utility model, a groove is provided on the end surface of the exhaust cover facing the stator plate, the second limiting portion is provided in the groove, an end of the valve plate fixing piece close to the exhaust cover is provided with an end head, the first limiting portion is provided on the end head, and the end head is at least partially placed in the groove.

[0012] In the scroll compressor provided by the utility model, the first limiting portion is a rotation-stopping groove recessed in the end head, and the second limiting portion is a limiting boss convexly formed in the groove, and the limiting boss and the rotation-stopping groove are clearance-fitted.

[0013] In the scroll compressor provided by the utility model, the first limiting portion is a limiting boss convexly formed on the end head, and the second limiting portion is a rotation-stopping groove concavely formed in the groove, and the limiting boss and the rotation-stopping groove are clearance-fitted.

[0014] In the scroll compressor provided by the utility model, the first limiting portion is a rotation-stop groove recessed in the end head, a fixing hole is opened in the recess, and the second limiting portion includes a limiting fastener fixed in the fixing hole and a limiting boss formed at one end of the limiting fastener close to the stator plate, and the limiting boss and the rotation-stop groove are clearance-fitted.

[0015] In the scroll compressor provided by the utility model, the limiting fastener is threadedly connected to the fixing hole, the valve plate fixing piece is threadedly connected to the stator plate, and the thread direction of the limiting fastener and the valve plate fixing piece is the same.

[0016] In the scroll compressor provided by the utility model, the limiting boss and the anti-rotation groove are both polygonal or non-circular with arc-shaped edges.

[0017] The utility model also provides an air conditioner, comprising the scroll compressor.

[0018] The utility model provides a scroll compressor and an air conditioner, wherein the scroll compressor comprises an exhaust cover assembly and a stationary scroll plate assembly, the exhaust cover assembly comprises an exhaust cover, the stationary scroll plate assembly comprises a stationary plate, an exhaust valve plate, a valve plate baffle and a valve plate fixing member, the exhaust valve plate and the valve plate baffle are fixed to the stationary plate through the valve plate fixing member, a first limiting portion is provided on the valve plate fixing member, and a second limiting portion is provided on the exhaust cover, the first limiting portion and the second limiting portion cooperate to limit and tighten the valve plate fixing member, the valve plate fixing member can be effectively constrained, thereby preventing the valve plate fixing member from loosening, and improving the reliability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are 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.

[0020] Figure 1 A cross-sectional schematic diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0021] Figure 2 A schematic diagram showing a fixed scroll assembly of a scroll compressor according to an embodiment of the utility model is shown;

[0022] Figure 3 A schematic diagram showing an exhaust cover assembly of a scroll compressor according to an embodiment of the utility model is shown;

[0023] Figure 4 Shown Figure 1 A magnified view of part A;

[0024] Figure 5 A cross-sectional schematic diagram of a scroll compressor according to another embodiment of the present invention is shown;

[0025] Figure 6 A schematic diagram showing a fixed scroll assembly of a scroll compressor according to another embodiment of the utility model is shown;

[0026] Figure 7 A schematic diagram showing an exhaust cover assembly of a scroll compressor according to another embodiment of the utility model is shown;

[0027] Figure 8 Shown Figure 5 A magnified view of part B;

[0028] Fig. 9 A cross-sectional schematic diagram of a scroll compressor according to another embodiment of the present invention is shown;

[0029] Fig.10 A schematic diagram showing a fixed scroll assembly of a scroll compressor according to another embodiment of the present invention is shown;

[0030] Fig.11 An exploded schematic diagram of an exhaust cover assembly of a scroll compressor according to another embodiment of the utility model is shown;

[0031] Fig.12 Shown Fig. 9 Enlarged view of part C;

[0032] Reference numerals:

[0033] 100, static scroll assembly; 110, static disk; 120, exhaust valve plate; 130, valve plate baffle; 140, valve plate fixing member; 141, first limiting portion; 200, exhaust cover assembly; 210, exhaust cover; 211, second limiting portion; 2111, fixing hole; 2112, limiting fastener; 212, groove. DETAILED DESCRIPTION

[0034] 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 part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0035] The directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In addition, in the drawings, structures with similar or identical structures are represented by the same reference numerals.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] The embodiment of the utility model provides a scroll compressor and an air conditioner, thereby solving the problem that the exhaust valve plate of the existing scroll compressor may repeatedly impact and hit the valve plate baffle plate, causing the loosening of the fastening bolts. The first limiting portion and the second limiting portion cooperate to limit and fasten the valve plate fixing part, thereby solving the problem of the loosening of the valve plate fixing part and improving the reliability of the compressor.

[0038] The embodiment of the utility model is to solve the problem of loosening of the above-mentioned fastening bolts, and its technical solution is as follows:

[0039] The specific solution is to set a first limiting part on the valve plate fixing part and a second limiting part on the exhaust cover, one of the first limiting part and the second limiting part is a limiting boss, and the other is a stop groove. When the exhaust cover is installed, the limiting boss is located in the stop groove, and the limiting boss and the stop groove are clearance-matched. The shapes of the limiting boss and the stop groove are polygonal. The polygonal limiting boss will be stuck by the polygonal stop groove during rotation and cannot rotate. In this way, the limiting boss and the stop groove can cooperate to form a stop, which can effectively constrain the valve plate fixing part to avoid large-angle rotation, avoid loosening of the valve plate fixing part, and improve the reliability of the compressor.

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] Reference Figure 1-Figure 12 The embodiment of the utility model provides a scroll compressor, including: a fixed scroll assembly 100 and an exhaust cover assembly 200, the fixed scroll assembly 100 includes a fixed disk 110, an exhaust valve plate 120, a valve plate baffle 130 and a valve plate fixing member 140, the valve plate fixing member 140 passes through the valve plate baffle 130 and the exhaust valve plate 120 in sequence and is fixed to the fixed disk 110, and the valve plate fixing member 140 is provided with a first limiting portion 141; the exhaust cover assembly 200 includes an exhaust cover 210, and the exhaust cover 210 is provided with a second limiting portion 211 on the end surface facing the fixed disk 110; wherein, the first limiting portion 141 cooperates with the second limiting portion 211 to limit and fasten the valve plate fixing member 140.

[0042] Specifically, the scroll compressor of this embodiment is mainly composed of a housing, an exhaust cover assembly 200, a fixed scroll assembly 100, a movable scroll assembly and a bracket assembly, wherein the exhaust cover assembly 200 is located at the top of the housing, and the fixed scroll assembly 100, the movable scroll assembly and the bracket assembly are located inside the housing. The exhaust cover assembly 200 includes an exhaust cover 210, and the fixed scroll assembly 100 includes a fixed disk 110, an exhaust valve plate 120, a valve plate baffle 130 and a valve plate fixing member 140. The exhaust cover 210 and the stator plate 110 are installed along the axial direction of the scroll compressor. The stator plate 110 includes a first end face and a second end face opposite to each other. The first end face faces the exhaust cover 210, and the second end face faces away from the exhaust cover 210. The first end face is provided with a valve hole. The valve plate baffle 130 and the exhaust valve plate 120 are fixed on the first end face through the valve plate fixing member 140. The exhaust valve plate 120 can open and close the valve hole. The valve plate baffle 130 blocks the front side of the exhaust valve plate 120 to protect the exhaust valve plate 120. The valve plate fixing member 140 can be a fastening bolt. The first end face of the stator plate 110 is provided with a corresponding threaded hole. The valve plate baffle 130 and the exhaust valve plate 120 are both provided with through holes. The fastening bolts pass through the valve plate baffle 130 and the exhaust valve plate 120 in turn and are threadedly connected with the threaded holes, thereby fixing the valve plate baffle 130 and the exhaust valve plate 120 on the stator plate 110. When the exhaust cover 210 is installed in place, the valve plate fixing part 140 is located in the space between the end face of the exhaust cover 210 facing the static plate 110 and the first end face of the static plate 110. In order to prevent the valve plate fixing part 140 from loosening, a first limiting portion 141 is provided on the valve plate fixing part 140, and a second limiting portion 211 is provided on the end face of the exhaust cover 210 facing the static plate 110. After the exhaust cover 210 is installed in place, the first limiting portion 141 and the second limiting portion 211 cooperate to limit, thereby limiting and tightening the valve plate fixing part 140, further tightening the valve plate fixing part 140, and the vibration caused by the impact and slapping on the valve plate fixing part 140 can be transmitted to the exhaust cover 210 through the first limiting portion 141, thereby reducing the vibration of the valve plate fixing part 140 and avoiding the loosening of the valve plate fixing part 140. It should be noted that the structure of the first limiting portion 141 and the second limiting portion 211 can be in various forms, for example, plug-in fastening, sleeve fastening, clamping fastening, bevel fastening, etc. No matter what the structure is, as long as it can achieve reinforcement of the valve plate fixing member 140 under the cooperation of the first limiting portion 141 and the second limiting portion 211, it is not limited here.

[0043] Through this embodiment, the first limiting portion 141 cooperates with the second limiting portion 211 to limit and fasten the valve plate fixing member 140, which can effectively constrain the valve plate fixing member 140, thereby preventing the valve plate fixing member 140 from loosening and improving the reliability of the compressor.

[0044] In one embodiment, the first limiting portion 141 and the second limiting portion 211 are concave-convex matching. Specifically, in a preferred manner, the first limiting portion 141 and the second limiting portion 211 of this embodiment adopt a concave-convex matching structure. Specifically, the first limiting portion 141 can be designed as a convex structure, and the second limiting portion 211 can be designed as a concave structure; of course, it can be understood that the first limiting portion 141 can also be designed as a concave structure, and the second limiting portion 211 can be designed as a convex structure, and the convex structure can be inserted into the concave structure to form a concave-convex matching, and the convex structure and the concave structure are tightly connected, thereby fastening the valve plate fixing member 140 to prevent it from loosening due to vibration. Moreover, the matching installation of the concave-convex structure is relatively simple and convenient. It only requires that after the exhaust cover 210 is installed in place, the exhaust cover 210 is aligned with the static plate 110, and the convex structure is naturally docked and inserted into the concave structure. It is a simple installation scheme, and the structure is simple and the processing difficulty is low.

[0045] In the present embodiment, a rotation-stopping structure is formed between the circumferential side wall of the first limit portion 141 and the circumferential side wall of the second limit portion 211. Specifically, since scroll compressors are often used in the fields of vehicles, fighter jets, aerospace, etc., scroll compressors need to face various operating postures at multiple angles and directions. Under these operating conditions, the valve plate fixing member 140 is prone to loosening and rotating at a large angle. In order to avoid this situation, a rotation-stopping structure is designed between the circumferential side wall of the first limit portion 141 and the circumferential side wall of the second limit portion 211 in the present embodiment. The rotation-stopping structure is used to lock the valve plate fixing member 140 to prevent it from loosening and deflecting at a large angle. It should be noted that the anti-rotation structure can be of various types. For example, the shape of the first limiting portion 141 and the second limiting portion 211 can be designed to be rectangular, so that there is an edge between the peripheral side wall of the first limiting portion 141 and the peripheral side wall of the second limiting portion 211, and the rotation is limited by the edge of the first limiting portion 141 and the edge of the second limiting portion 211 mutually resisting each other, thereby playing a role of anti-rotation. For another example, the peripheral side wall of the first limiting portion 141 can be designed as a gear structure, and the second limiting portion 211 can be designed as a gear groove structure matching the gear shape, and the rotation is limited by the tooth shape on the gear and the gear groove mutually resisting each other, thereby playing a role of anti-rotation. For another example, the structure of the eccentric wheel and the eccentric groove, the structure of adding an adhesive layer between the peripheral side wall of the first limiting portion 141 and the peripheral side wall of the second limiting portion 211, etc., as long as they can play a locking role, they are not limited here.

[0046] Reference Figure 3In one embodiment, the exhaust cover 210 is provided with a groove 212 on the end surface facing the static plate 110, the second limiting portion 211 is provided in the groove 212, and the valve plate fixing member 140 is provided with a head at one end close to the exhaust cover 210, the first limiting portion 141 is provided on the head, and the head is at least partially placed in the groove 212. Specifically, in actual processing, the groove 212 is firstly opened on the end surface of the exhaust cover 210, and the second limiting portion 211 is processed in the groove 212. The groove 212 is used to cooperate with the end of the valve plate fixing member 140, and guide the first limiting portion 141 to align with the second limiting portion 211 to form a match. The end of the valve plate fixing member 140 can be the head of a fastening bolt, and the first limiting portion 141 is provided on the head of the fastening bolt. Among them, the shape of the head of the fastening bolt and the groove 212 of the exhaust cover 210 can be circular or non-circular, which is not limited here. When the exhaust cover 210 is installed, at least a portion of the head of the fastening bolt is placed in the groove 212, and the first limiting portion 141 on the head of the fastening bolt automatically docks with the second limiting portion 211 on the groove 212, completing the alignment of the first limiting portion 141 and the second limiting portion 211, making the installation simple and convenient. In addition, the cooperation between the head of the fastening bolt and the groove 212 plays a certain limiting role, further tightening the fastening bolt to prevent it from loosening.

[0047] In particular, the specific structure of the first limiting portion 141 and the second limiting portion 211 can be implemented through the following three preferred embodiments. Of course, it can be understood that other methods are also possible, as described below.

[0048] Reference Figure 1-Figure 4 In one embodiment, the first limiting portion 141 is a rotation-stop groove formed concavely on the end, and the second limiting portion 211 is a limiting boss formed convexly in the groove 212, and the limiting boss and the rotation-stop groove are clearance matched. Specifically, the first limiting portion 141 is a rotation-stop groove provided on the head of the fastening bolt, and the rotation-stop groove is recessed in the head of the fastening bolt. The second limiting portion 211 is a limiting boss formed by protrusion on the groove surface of the groove 212 of the exhaust cover 210. When the exhaust cover 210 is installed in place, the head of the fastening bolt is inserted into the groove 212 and pressed against the groove surface of the groove 212, and the limiting boss protruding on the groove surface is inserted into the rotation-stop groove on the head of the fastening bolt, and the limiting boss and the rotation-stop groove are clearance matched with each other, and the peripheral side wall of the limiting boss and the peripheral side wall of the rotation-stop groove cooperate with each other to form a rotation stop. Through this embodiment, the valve plate fixing component 140 is prevented from rotating by the cooperation of the limiting boss and the anti-rotation groove, which can effectively constrain the valve plate fixing component 140, prevent the valve plate fixing component 140 from loosening and deflecting at a large angle, and avoid loosening.

[0049] In addition, in this embodiment, in order to facilitate assembly and realize the anti-loosening function of the fastening bolts, the thickness tolerance of the valve plate baffle 130 needs to be designed to be (±0.1~±0.15) mm, the fitting clearance between the anti-rotation groove of the bolt head of the fastening bolt and the limiting boss on the exhaust cover 210 is designed to be (±0.1~±0.2) mm, and the tightening torque deviation of the fastening bolts is controlled within (±1~±2) N·m, thereby realizing effective anti-loosening of the bolts.

[0050] Reference Figure 5-Figure 8 In another embodiment, the first limiting portion 141 is a limiting boss convexly formed on the end, and the second limiting portion 211 is a stop groove concavely formed in the groove 212, and the limiting boss and the stop groove are clearance matched. Specifically, the first limiting portion 141 is a limiting boss convexly formed on the head of the fastening bolt. The second limiting portion 211 is a stop groove provided on the groove 212 of the exhaust cover 210, and the stop groove is formed by being recessed inward on the groove surface of the groove 212. When the exhaust cover 210 is installed in place, the head of the fastening bolt is inserted into the groove 212 and pressed against the groove surface of the groove 212, and the limiting boss protruding on the head of the fastening bolt is inserted into the stop groove on the groove surface, and the limiting boss and the stop groove are clearance matched, and the peripheral side wall of the limiting boss and the peripheral side wall of the stop groove cooperate with each other to form a stop. Through this embodiment, the valve plate fixing component 140 is prevented from rotating by the cooperation of the limiting boss and the anti-rotation groove, which can effectively constrain the valve plate fixing component 140, prevent the valve plate fixing component 140 from loosening and deflecting at a large angle, and avoid loosening.

[0051] Reference Figure 9-12In another embodiment, the first limiting portion 141 is a rotation-stopping groove formed in a recessed manner on the end, a fixing hole 2111 is provided in the recess 212, and the second limiting portion 211 includes a limiting fastener 2112 fixed in the fixing hole 2111 and a limiting boss formed at one end of the limiting fastener 2112 close to the static plate 110, and the limiting boss is clearance-matched with the rotation-stopping groove. Specifically, the first limiting portion 141 is a rotation-stopping groove provided on the head of the fastening bolt, and the rotation-stopping groove is recessed in the head of the fastening bolt. A fixing hole 2111 is provided on the groove surface of the groove 212, and the second limiting portion 211 includes a limiting fastener 2112, which can be a limiting fastening bolt, and the head of the limiting fastening bolt is a limiting boss, which is installed in the fixing hole 2111, and the limiting boss is exposed outside the fixing hole 2111, and the limiting boss protrudes on the groove surface of the groove 212. Then, when the exhaust cover 210 is installed in place, the head of the fastening bolt is inserted into the groove 212 and pressed against the groove surface of the groove 212, and the limiting boss protruding on the groove surface is inserted into the anti-rotation groove on the head of the fastening bolt, and the limiting boss and the anti-rotation groove are matched with a small gap, and the peripheral side wall of the limiting boss and the peripheral side wall of the anti-rotation groove cooperate with each other to form anti-rotation. Through this embodiment, the valve plate fixing component 140 is prevented from rotating by the cooperation of the limiting boss and the anti-rotation groove, which can effectively constrain the valve plate fixing component 140, prevent the valve plate fixing component 140 from loosening and deflecting at a large angle, and avoid loosening.

[0052] Further, the limiting fastener 2112 is threadedly connected to the fixing hole 2111, the valve plate fixing member 140 is threadedly connected to the static plate 110, and the thread direction of the limiting fastener 2112 is the same as that of the valve plate fixing member 140. Specifically, the fixing hole 2111 formed on the groove surface of the groove 212 is a threaded hole, the limiting fastener 2112 is a limiting bolt, and the limiting bolt is threadedly connected to the threaded hole, thereby fixing the limiting fastener 2112 to the exhaust cover 210. Similarly, the valve plate fixing member 140 is a fastening bolt, a threaded hole is formed on the first end surface of the static plate 110, and the fastening bolt is threadedly connected to the threaded hole, thereby fixing the valve plate fixing member 140 to the static plate 110. Among them, the thread direction of the limiting bolt is the same as that of the fastening bolt, both of which are left-handed or right-handed. Since the head of the limit bolt is opposite to the head of the fastening bolt, and the head of the limit bolt is inserted into the head of the fastening bolt, that is, the two are arranged back to back, when the thread rotation directions of the two are the same, the reverse loosening directions of the two are opposite. Then, when one of them is reversed and loosened, it drives the other to rotate forward and lock to prevent rotation, thereby further improving the anti-loosening effect.

[0053] In one embodiment, the limiting boss and the anti-rotation groove are both polygonal or non-circular with arc-shaped edges. Specifically, the limiting boss matches the shape of the anti-rotation groove, and the shapes of the limiting boss and the anti-rotation groove are polygonal, for example, they can be polygons with edges such as rectangles, trapezoids, hexagons, etc. In the present embodiment, the limiting boss and the anti-rotation groove are both hexagonal structures, the limiting boss is a hexagonal flat-top boss structure, and the anti-rotation groove is a hexagonal flat-bottom groove structure. In other embodiments, the limiting boss and the anti-rotation groove are non-circular with arc-shaped edges, for example, elliptical, fan-shaped, eccentric and other curved special shapes, for example, the limiting boss is an elliptical flat-top boss structure, and the anti-rotation groove is an elliptical flat-bottom groove structure. The limiting boss is embedded in the anti-rotation groove, and there is a small gap between the limiting boss and the anti-rotation groove, which can effectively constrain the rotation of the fastening bolts, thereby realizing the function of preventing the bolts from loosening.

[0054] The present invention also provides an air conditioner, comprising the scroll compressor of the above embodiment. Specifically, the scroll compressor has been described in detail in the above embodiment, and for the sake of brevity of the specification, it will not be repeated here.

[0055] Through this embodiment, a limiting structure is designed on the exhaust cover 210 to cooperate with the head of the fastening bolt, which can effectively restrain the fastening bolt, prevent the fastening bolt from loosening and deflecting at a large angle, avoid the fastening bolt from loosening, and effectively improve the reliability of the compressor.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A scroll compressor, characterized in that: include: The fixed scroll assembly comprises a fixed scroll, an exhaust valve plate, a valve plate baffle and a valve plate fixing member, wherein the valve plate fixing member passes through the valve plate baffle and the exhaust valve plate in sequence and is fixed on the fixed scroll, and a first limiting portion is provided on the valve plate fixing member; An exhaust cover assembly comprises an exhaust cover, wherein a second limiting portion is provided on an end surface of the exhaust cover facing the static disk; Wherein, the first limiting portion cooperates with the second limiting portion to limit and fasten the valve plate fixing piece.

2. The scroll compressor according to claim 1, characterized in that: The first limiting portion and the second limiting portion are concave-convex matched.

3. The scroll compressor according to claim 2, characterized in that: A rotation-stopping structure is formed between the peripheral side wall of the first limiting portion and the peripheral side wall of the second limiting portion.

4. The scroll compressor according to claim 3, characterized in that: The exhaust cover is provided with a groove on the end surface facing the static disk, the second limiting portion is arranged in the groove, the valve plate fixing piece is provided with an end head at one end close to the exhaust cover, the first limiting portion is arranged on the end head, and the end head is at least partially placed in the groove.

5. The scroll compressor according to claim 4, characterized in that: The first limiting portion is a rotation-stopping groove formed concavely in the end head, and the second limiting portion is a limiting boss formed convexly in the groove, and the limiting boss and the rotation-stopping groove are clearance-matched.

6. The scroll compressor according to claim 4, characterized in that: The first limiting portion is a limiting boss convexly formed on the end head, and the second limiting portion is a rotation-stopping groove concavely formed in the groove, and the limiting boss and the rotation-stopping groove are clearance-fitted.

7. The scroll compressor according to claim 4, characterized in that: The first limiting portion is a rotation-stop groove recessed in the end head, a fixing hole is formed in the recess, and the second limiting portion includes a limiting fastener fixed in the fixing hole and a limiting boss formed at one end of the limiting fastener close to the static disk, and the limiting boss is clearance-fitted with the rotation-stop groove.

8. The scroll compressor according to claim 7, characterized in that: The limiting fastener is threadedly connected to the fixing hole, the valve plate fixing piece is threadedly connected to the static plate, and the thread direction of the limiting fastener and the valve plate fixing piece is the same.

9. The scroll compressor according to any one of claims 5 to 8, characterized in that: The limiting boss and the anti-rotation groove are both polygonal or non-circular with arc-shaped edges.

10. An air conditioner, characterized in that: Comprising a scroll compressor as described in any one of claims 1-9.

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