Micro-valve-gap refrigerator compressor air suction valve plate

Abstract

The utility model discloses a micro-valve-gap refrigerator compressor air suction valve plate which comprises a valve plate body, a first reed is arranged on the valve plate body, a second reed and a third reed are symmetrically arranged on the two sides of the first reed, and the first reed, the second reed, the third reed and the valve plate body are connected into a whole. The head end of the second reed and the head end of the third reed are close to the head end of the first reed, the tail end of the second reed and the tail end of the third reed are far away from the tail end of the first reed, and the second reed is provided with a first opening groove surrounded by the molded line of the second reed. The third reed is provided with a second open slot surrounded by the molded line of the third reed, and the tail part of the first reed is provided with a vent hole; when facing different pressures, the air suction valve plate can be opened to different degrees, the opening degree of the second reed and the opening degree of the third reed are reduced, production can be effectively changed, stress distribution can be effectively improved, the service life of the air suction valve plate is prolonged, and the clearance volume of a compressor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor valve plates, in particular to an air suction valve plate for a refrigerator compressor with a micro-valve clearance. Background Art

[0002] As an important component of the compressor, the structure of the valve assembly can have a huge impact on the performance and reliability of the compressor. The suction valve plate is usually installed in the compressor. When working, the reed of the suction valve plate needs to vibrate continuously. Different suction pressures will cause different openings of the reed. When the suction pressure is high, the opening of the existing suction valve plate is usually large, resulting in a large impact force and noise generated during the impact, and a slow response speed, which shortens the service life of the suction valve plate and increases the clearance volume of the compressor. Utility Model Content

[0003] The utility model aims to provide a micro-valve gap refrigerator compressor air intake valve plate to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model is implemented by the following technical means:

[0005] A micro-valve gap refrigerator compressor suction valve plate, comprising a valve plate body, a first tongue reed plate arranged on the valve plate body, a second tongue reed plate and a third tongue reed plate symmetrically arranged on both sides of the first tongue reed plate, the first tongue reed plate, the second tongue reed plate, the third tongue reed plate and the valve plate body are connected as a whole, the head ends of the second tongue reed plate and the third tongue reed plate are close to the head end of the first tongue reed plate, the tail ends of the second tongue reed plate and the third tongue reed plate are far away from the tail end of the first tongue reed plate, the second tongue reed plate is provided with a first opening groove surrounded by the contour line of the second tongue reed plate, the third tongue reed plate is provided with a second opening groove surrounded by the contour line of the third tongue reed plate, and the tail of the first tongue reed plate is provided with a vent hole.

[0006] Furthermore, the contour lines of the first tongue reed, the second tongue reed and the third tongue reed do not intersect, and gaps are formed between the edges of the first tongue reed, the second tongue reed and the third tongue reed and the valve plate body, and transition holes are provided at both ends of the connection between the first tongue reed, the second tongue reed and the third tongue reed and the valve plate body.

[0007] Furthermore, a first spacing structure is formed between the middle portion of the first tongue reed piece and the side close to the head portion of the second tongue reed piece, and the first spacing structure is wide in the middle and short and narrow at both ends.

[0008] Furthermore, a first air hole is provided on the first spacing structure.

[0009] Furthermore, a second spacing structure is formed between the middle portion of the first tongue reed piece and the side close to the head portion of the third tongue reed piece, and the second spacing structure is wide in the middle and short and narrow at both ends.

[0010] Furthermore, a second air hole is provided on the second spacing structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model arranges three groups of tongue reeds, and respectively opens a first opening groove and a second opening groove on the second tongue reed and the third tongue reed, so that the second tongue reed and the third tongue reed are respectively composed of two tongue reeds. When facing different pressures, they can be opened to different degrees, reducing the opening degree of the second tongue reed and the third tongue reed, as well as the clapping force. Moreover, each group of tongue reeds is distributed independently of each other, which can effectively improve stress distribution, increase the service life of the suction valve plate, and reduce the clearance volume of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the product structure in the embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the top view of the product structure in the embodiment of the utility model;

[0015] Figure 3 In the embodiment of the utility model Figure 2 The enlarged structural diagram of part A in the middle;

[0016] Figure 4 In the embodiment of the utility model Figure 2 The enlarged structural diagram of part B in the middle;

[0017] Figure 5 It is a schematic diagram of the matching structure of the product and the valve plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following is a detailed description of the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments and drawings are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application. The accompanying drawings only schematically show the parts related to the technical solution of the present application, and they do not represent the actual structure of the product.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0020] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0024] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] As an important component of the compressor, the structure of the valve assembly can have a huge impact on the performance and reliability of the compressor. The suction valve plate is usually installed in the compressor. When working, the reed of the suction valve plate needs to vibrate continuously. Different suction pressures will cause different openings of the reed. When the suction pressure is high, the opening of the existing suction valve plate is usually large, resulting in a large impact force and noise generated during the impact, and a slow response speed, which shortens the service life of the suction valve plate and increases the clearance volume of the compressor.

[0026] In the present embodiment, a micro-valve gap refrigerator compressor suction valve plate includes a valve plate body 1, a first tongue reed plate 2 is arranged on the valve plate body 1, and a second tongue reed plate 3 and a third tongue reed plate 4 are symmetrically arranged on both sides of the first tongue reed plate 2. The first tongue reed plate 2, the second tongue reed plate 3, and the third tongue reed plate 4 are connected to the valve plate body 1 as a whole, and the head ends of the second tongue reed plate 3 and the third tongue reed plate 4 are close to the head end of the first tongue reed plate 2, and the tail ends of the second tongue reed plate 3 and the third tongue reed plate 4 are far away from the tail end of the first tongue reed plate 2. The second tongue reed plate 3 is provided with a first opening groove 5 surrounded by the contour line of the second tongue reed plate 3, and the third tongue reed plate 4 is provided with a second opening groove 6 surrounded by the contour line of the third tongue reed plate 4. The tail of the first tongue reed plate 2 is provided with a vent hole 7. By providing the vent hole 7, the self weight of the first tongue reed plate 2 is further reduced, and the opening sensitivity of the first tongue reed plate 2 is improved.

[0027] In a possible embodiment of the present invention, referring to the accompanying drawings, the head of the first reed piece 2 is a circular structure, the middle part is a curved waist-shaped structure whose width gradually decreases from the middle position between the two ends, and the tail part is an expansion structure that gradually extends from the middle to both sides and is connected to the valve plate body 1. In this way, while ensuring the reliability of the service life of the valve plate, the valve plate stress can be improved; similarly, the second reed piece 3 and the third reed piece 4 are also arranged with the above structure; of course, this embodiment is only an illustrative example, and the first reed piece 2, the second reed piece 3, and the third reed piece 4 can also adopt other structures that meet the requirements of the present invention.

[0028] In a possible embodiment of the present invention, the contour lines of the first reed piece 2, the second reed piece 3, and the third reed piece 4 do not intersect, and a gap is formed between the edges of the first reed piece 2, the second reed piece 3, and the third reed piece 4 and the valve plate body 1. By setting a plurality of groups of reed pieces, the suction valve plate has a better suction efficiency. In the specific application of the present invention, the gap size range can be set to 0.1-0.6mm, the thickness of the valve plate is 0.06-0.2mm, and transition holes 8 are provided at both ends of the connection between the first reed piece 2, the second reed piece 3, and the third reed piece 4 and the valve plate body 1. The transition holes 8 corresponding to the corresponding reed pieces are of different sizes. By setting the transition holes 8, the shear force at the connection between the first reed piece 2, the second reed piece 3, and the third reed piece 4 and the valve plate body 1 during operation can be effectively reduced, thereby improving the reliability of the valve plate.

[0029] In a possible embodiment of the present invention, a first spacing structure 9 is formed between the middle of the first tongue reed piece 2 and the side close to the head of the second tongue reed piece 3. The first spacing structure 9 is wide in the middle and short and narrow at both ends. The width of the first spacing structure 9 decreases from both ends to the middle. Through the arrangement of the first spacing structure 9, there is an obvious spacing between two adjacent tongue reed pieces at local positions, which can avoid the accumulation of stress at the connection between the adjacent tongue reed pieces. When working, the airflow is guided to a certain extent to avoid shear force during work, thereby improving the reliability of the valve piece.

[0030] In a possible embodiment of the utility model, in order to further enhance the effectiveness of the first spacing structure 9, a first air vent 91 is provided on the first spacing structure 9, and the bottom of the first spacing structure 9 is chamfered. While reducing the weight of the first spacing structure 9 itself, the airflow is guided to a certain extent to avoid shear force during operation, thereby improving the reliability of the valve plate.

[0031] In a possible embodiment of the present invention, a second spacing structure 10 is formed between the middle of the first tongue reed piece 2 and the side close to the head of the third tongue reed piece 4. The second spacing structure 10 is wide in the middle and short and narrow at both ends. In a possible embodiment of the present invention, the second spacing structure 10 and the first spacing structure 9 are symmetrical about the first tongue reed piece 2.

[0032] In a possible embodiment of the utility model, a second air hole 101 is provided on the second spacing structure 10, and the bottom of the second spacing structure 10 is chamfered. While reducing the weight of the second spacing structure 9 itself, the airflow is guided to a certain extent to avoid shear force during operation, thereby improving the reliability of the valve plate.

[0033] In a possible embodiment of the present invention, the second reed piece 3 and the third reed piece 4 have different stiffnesses. When the present invention is used in a specific application, the first reed piece 2 can work and the other reed pieces can be closed when the suction pressure is relatively low. When the suction pressure rises, the reed pieces formed by the first opening groove 5 and the second opening groove 6 on the second reed piece 3 and the third reed piece 4 can work. As the suction pressure rises, the reed pieces work together. In this way, the operation of the reed pieces can be adjusted according to the different suction pressures, and the corresponding striking force is reduced. Therefore, when facing different pressures, the present invention can be opened to different degrees, and the opening degree of the second reed piece 3 and the third reed piece 4, as well as the striking force, can be reduced. In addition, each group of reed pieces is independently distributed, which can effectively improve the stress distribution, increase the service life of the suction valve piece, and reduce the clearance volume of the compressor.

[0034] In a possible embodiment of the present utility model, a plurality of air intake holes and air exhaust holes (not marked in the figure) are provided on the valve plate body 1 .

[0035] The specific embodiments disclosed in the present utility model fall within the protection scope of the claims of the present utility model, and are the specific lower-level implementation scope of the characteristic parts of the present utility model. The protection content of the specific embodiments is merely an explanation of the protection scope of the claims of the present utility model. The protection scope of the present utility model is not limited to the protection content of the specific embodiments, and the protection content of the specific embodiments should not be understood as a limitation on the protection scope of the claims of the present utility model.

Claims

1. A micro-valve gap refrigerator compressor air intake valve plate, comprising a valve plate body (1), characterized in that: The valve plate body (1) is provided with a first tongue reed (2), and a second tongue reed (3) and a third tongue reed (4) are symmetrically provided on both sides of the first tongue reed (2). The first tongue reed (2), the second tongue reed (3), and the third tongue reed (4) are connected to the valve plate body (1) as a whole, and the head ends of the second tongue reed (3) and the third tongue reed (4) are close to the head end of the first tongue reed (2), and the tail ends of the second tongue reed (3) and the third tongue reed (4) are far away from the tail end of the first tongue reed (2). The second tongue reed (3) is provided with a first opening groove (5) surrounded by the contour line of the second tongue reed (3), and the third tongue reed (4) is provided with a second opening groove (6) surrounded by the contour line of the third tongue reed (4), and the tail of the first tongue reed (2) is provided with a vent hole (7).

2. The micro-valve gap refrigerator compressor suction valve plate according to claim 1, characterized in that: The contour lines of the first tongue reed (2), the second tongue reed (3) and the third tongue reed (4) do not intersect, and a gap is formed between the edges of the first tongue reed (2), the second tongue reed (3) and the third tongue reed (4) and the valve plate body (1), wherein the gap size range can be set to 0.1-0.6 mm, and the thickness of the valve plate is 0.06-0.2 mm. Transition holes (8) are provided at both ends of the connection between the first tongue reed (2), the second tongue reed (3) and the third tongue reed (4) and the valve plate body (1).

3. The micro-valve gap refrigerator compressor suction valve plate according to claim 1, characterized in that: A first spacing structure (9) is formed between the middle of the first tongue reed piece (2) and the side close to the head of the second tongue reed piece (3). The first spacing structure (9) is wide in the middle and short and narrow at both ends. The width of the first spacing structure (9) decreases from the two ends to the middle.

4. The micro-valve gap refrigerator compressor suction valve plate according to claim 3, characterized in that: The first spacing structure (9) is provided with a first vent hole (91), and the bottom of the first spacing structure (9) is chamfered.

5. The micro-valve gap refrigerator compressor suction valve plate according to claim 1, characterized in that: A second spacing structure (10) is formed between the middle of the first tongue reed piece (2) and the side close to the head of the third tongue reed piece (4), and the second spacing structure (10) is wide in the middle and short and narrow at both ends.

6. The micro-valve gap refrigerator compressor suction valve plate according to claim 5, characterized in that: The second spacing structure (10) is provided with a second vent hole (101), and the bottom of the second spacing structure (10) is chamfered.

7. The micro-valve gap refrigerator compressor suction valve plate according to claim 1, characterized in that: The second tongue reed (3) and the third tongue reed (4) have different stiffnesses.

Images