Silencer compression card, compressor and refrigeration equipment

Abstract

This invention provides a muffler cavity clamping clip, a compressor, and a refrigeration device. The muffler cavity clamping clip is an integrally formed bent plate-like structure, including a first clamping part, a second clamping part, a first deformable part, a second deformable part, a third deformable part, a first support part, and a second support part. The third deformable part bends towards the first support part, and the second deformable part bends away from the third deformable part. The plane containing the second deformable part forms a second inclination angle with the plane containing the second clamping part. The two-stage clamping part ensures that the muffler cavity clamping clip can clamp the muffler cavity from different directions, effectively improving the stability of the muffler cavity assembly. The three deformable parts can elastically deform sequentially. In the limited space between the cylinder head and the muffler cavity, the elastic deformation length of the muffler cavity clamping clip is longer, and the contact area between the clamping part and the muffler cavity is larger, resulting in more uniform pressure on the valve plate and effectively preventing deformation of the muffler cavity or the valve plate near the muffler cavity.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration equipment, and in particular to a muffler cavity compression card, a compressor and refrigeration equipment. Background Art

[0002] In the prior art, the silencer chamber of the refrigeration compressor is pressed against the cylinder head gasket through the silencer chamber, thereby sealing the air intake passage in the refrigeration compressor, ensuring that the refrigeration oil and the hot refrigerant on the outside are not sucked into the cylinder, so as to improve the efficiency of the compressor and ensure the reliability of the valve plate therein.

[0003] Specifically, the silencer chamber clamping card has a large elastic property. When it is restricted by the position of the cylinder head on one side, it undergoes elastic deformation. The elastic force generated by the elastic deformation presses on the silencer chamber, and then presses the mouth of the silencer chamber onto the cylinder head gasket.

[0004] Due to the limited space between the cylinder head and the silencer cavity, the existing silencer cavity clamping clamp is usually set to have a shorter length and greater elasticity in order to ensure sufficient elasticity. After being squeezed by the cylinder head and the silencer cavity, the deformed portion provides greater elasticity to the silencer cavity and the cylinder head. However, this structural setting easily causes deformation of the valve plate near the silencer cavity in the compressor, causing the suction valve sheet that fits the valve plate to not close tightly and cause leakage, resulting in reduced suction efficiency of the compressor. Summary of the invention

[0005] In order to make up for the deficiencies of the above-mentioned technology, the present invention provides a silencer chamber clamping card, a compressor and a refrigeration device to solve the technical problem in the prior art that the valve plate is easily deformed by the silencer chamber clamping card and causes suction leakage.

[0006] In a first aspect, the present invention provides a muffler cavity clamping card, wherein the muffler cavity clamping card is an integrally formed bent plate, and includes a first clamping portion, a second clamping portion, a first deformation portion, a second deformation portion, a third deformation portion, a first support portion, and a second support portion;

[0007] The first supporting portion is connected to a first end of the first deforming portion in a length direction, and a plane where the first deforming portion is located forms a first inclination angle with a plane where the first supporting portion is located; a second end of the first deforming portion in a length direction is connected to a first end of the second pressing portion in a width direction, and a plane where the second pressing portion is located is parallel to a plane where the first supporting portion is located;

[0008] The second deformation portion and the third deformation portion are connected to the second end of the second pressing portion in the width direction; the third deformation portion is bent toward the first supporting portion, and the second deformation portion is bent away from the third deformation portion, and the plane where the second deformation portion is located forms a second inclination angle with the plane where the second pressing portion is located, and the plane where the second deformation portion is located forms a third inclination angle with the plane where the third deformation portion is located;

[0009] The first pressing portion is connected to the edge of the second deformation portion and is parallel to the first supporting portion; the second supporting portion is connected to the edge of the third deformation portion and is parallel to the first supporting portion.

[0010] In a second aspect, the present invention provides a compressor, including a cylinder head, a muffler cavity, a cylinder head gasket and a valve plate, and also includes the muffler cavity pressing card of the first aspect;

[0011] The air intake port of the cylinder head gasket corresponds to the air intake port of the valve plate and is attached to the valve plate;

[0012] The mouth of the muffler cavity corresponds to the air intake port of the cylinder head gasket and fits on the cylinder head gasket;

[0013] The silencer chamber clamping card is pressed between the cylinder head and the silencer chamber, the clamping surface of the first clamping part is close to the axial direction of the mouth of the silencer chamber, and the clamping surface of the second clamping part is far away from the axial direction of the mouth of the silencer chamber.

[0014] In a third aspect, the present invention further provides a refrigeration device, comprising the compressor of the second aspect.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] The silencer chamber pressing card provided by the present invention is provided with a two-stage pressing part, thereby ensuring that the silencer chamber pressing card can press the silencer chamber from different directions, thereby effectively improving the stability of the silencer chamber assembly; the three deformation parts can undergo elastic deformation in sequence, and in the limited space between the cylinder head and the silencer chamber, the elastic deformation length of the silencer chamber pressing card is longer, and the contact area between the pressing part and the silencer chamber is larger, the pressure on the silencer chamber is reduced, and the silencer chamber pressing card presses the valve plate more evenly, which can effectively prevent the silencer chamber or the valve plate near the silencer chamber from deforming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a muffler chamber pressing card in one embodiment of the present invention;

[0018] Figure 2 A top view of a muffler chamber compression card in one embodiment of the present invention;

[0019] Figure 3 for Figure 2 Right view of;

[0020] Figure 4 The figure is a schematic diagram of the assembly structure of the muffler chamber pressing card in one embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 10-silence chamber pressing card, 11-first supporting part, 12-first deformation part, 13-second pressing part, 14-second deformation part, 141-second deformation right part, 142-second deformation left part, 15-first pressing part, 151-first pressing right part, 152-first pressing left part, 16-third deformation part, 17-second supporting part;

[0023] 20-cylinder head;

[0024] 30-silence chamber, 31-silence chamber mouth;

[0025] 40-cylinder head gasket; 50-valve plate; 60-intake valve plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0029] The embodiment of the first aspect of the present invention provides a muffler cavity pressing card, such as Figure 1 , Figure 2 and Figure 3As shown, the muffler chamber clamping card 10 is an integrally formed bent plate, including a first clamping portion 15, a second clamping portion 13, a first deformation portion 12, a second deformation portion 14, a third deformation portion 16, a first support portion 11 and a second support portion 17. The first support portion 11 is connected to the first end of the first deformation portion 12 in the length direction, and the plane where the first deformation portion 12 is located is at a first inclination angle with the plane where the first support portion 11 is located. The second end of the first deformation portion 12 in the length direction is connected to the first end of the second clamping portion 13 in the width direction, and the plane where the second clamping portion 13 is located is parallel to the plane where the first support portion 11 is located. The second deformation portion 14 and the third deformation portion 16 are connected to the second end of the second clamping portion 13 in the width direction. The third deformation portion 16 is bent toward the first support portion 11, and the second deformation portion 14 is bent away from the third deformation portion 16. The plane where the second deformation portion 14 is located is at a second inclination angle with the plane where the second clamping portion 13 is located, and the plane where the second deformation portion 14 is located is at a third inclination angle with the plane where the third deformation portion 16 is located. The first pressing portion 15 is connected to the edge of the second deformation portion 14 and is parallel to the first supporting portion 11. The second supporting portion 17 is connected to the edge of the third deformation portion 16 and is parallel to the first supporting portion 11.

[0030] like Figure 4 As shown, the first support portion 11 and the second support portion 17 can abut against the cylinder head 20, and the first pressing portion 15 and the second pressing portion 13 can abut against the muffler cavity 30. The first deformation portion 12, the second deformation portion 14 and the third deformation portion 16 are all elastic, and when abutting between the cylinder head 20 and the muffler cavity 30, the elastic force can be transmitted between the cylinder head 20 and the muffler cavity 30, so that the muffler cavity 30 is closely fitted with the cylinder head gasket 40.

[0031] like Figure 3 As shown, since the second deformation portion 14 is bent away from the third deformation portion 16, the plane where the second deformation portion 14 is located forms a second inclination angle with the plane where the second pressing portion 13 is located; therefore, the distance between the pressing surface of the first pressing portion 15 and the plane where the first support portion 11 is located is greater than the distance between the pressing surface of the second pressing portion 13 and the plane where the first support portion 11 is located. The silencer cavity pressing card 10 abuts against the silencer cavity 30, the first pressing portion 15 first contacts the silencer cavity 30, and the second deformation portion 14 deforms and causes the second pressing portion 13 to abut against the silencer cavity 30.

[0032] By setting a two-stage clamping part, it is ensured that the silencer chamber clamping card 10 can clamp the silencer chamber 30 from different directions, which effectively improves the stability of the assembly of the silencer chamber 30; the three deformation parts can undergo elastic deformation in sequence, and in the limited space between the cylinder head and the silencer chamber, the elastic deformation length of the silencer chamber clamping card is longer, and the contact area between the clamping part and the silencer chamber 30 is larger, so that the pressure on the silencer chamber 30 is reduced, so that the silencer chamber clamping card presses the valve plate 50 more evenly, which can effectively prevent the silencer chamber 30 or the valve plate 50 near the silencer chamber from deforming.

[0033] Optionally, in a specific implementation of the embodiment of the present invention, as Figure 2 As shown, the first support portion 11 is a symmetrical U-shaped plate, and the second support portion 17 is a long strip plate. The symmetry axis of the first support portion 11 coincides with the symmetry axis of the second support portion 17. The projection of the first deformation portion 12 on the plane where the first support portion 11 is located and the projection of the third deformation portion 16 on the plane where the second support portion 17 is located both coincide with the symmetry axis of the first support portion 11. The U-shaped first support portion 11 has a larger contact area with the cylinder head 20, and the clamping effect is better. The first deformation portion 12 can push against the first support portion 11 from the center of the first support portion 11, and the second deformation portion 14 can push against the second support portion 17 from the center of the second support portion 17, thereby ensuring that the elastic force applied by the deformation portion to the support portion is evenly diffused to the support portion, which can effectively prevent the cylinder head 20 from being deformed due to excessive local pressure. On the other hand, the structural stability of the symmetrically arranged silencer chamber clamping card 10 is also higher.

[0034] Optionally, in another specific implementation of the embodiment of the present invention, a rubber layer (not shown in the figure) is provided on the pressing surface of the first pressing part 15 and the pressing surface of the second pressing part 13. The rubber layer can play a buffering role and can effectively reduce the deformation of the silencer cavity 30 caused by excessive extrusion of the silencer cavity pressing card 10. Of course, the rubber layer must also have a certain temperature resistance to ensure its service life. In addition, by providing a rubber layer on the pressing surface, the silencer cavity 30 can also be effectively prevented from being scratched and worn by the silencer cavity pressing card 10.

[0035] Optionally, in another specific implementation of the embodiment of the present invention, the first inclination angle and the second inclination angle are both 10 to 20 degrees, and the third inclination angle is 20 to 30 degrees. The larger the inclination angle, the greater the elastic force provided by the deformation portion, which is easy to cause the silencer cavity 30 or the valve plate 50 to deform; the smaller the inclination angle, the smaller the elastic force provided by the deformation portion, which is easy to cause the clamping card to fail to clamp the silencer cavity 30, resulting in unstable assembly of the silencer cavity 30. The angles of the two inclination angles can be selected according to the distance between the cylinder head 20 and the silencer cavity 30. In this embodiment, the first inclination angle and the second inclination angle are both 10 to 20 degrees, and the third inclination angle is 20 to 30 degrees, which can effectively prevent the silencer cavity 30 or the valve plate 50 from deforming while ensuring that the silencer cavity 30 is firmly assembled.

[0036] Optionally, in a specific implementation of the embodiment of the present invention, as Figure 2 As shown, the first pressing portion 15 includes a first pressing left portion 152 and a first pressing right portion 151, and the second deformation portion 14 includes a second deformation right portion 141 and a second deformation left portion 142. The second deformation right portion 141 and the second deformation left portion 142 are symmetrically arranged at the two end edges of the second pressing portion 13. The first pressing right portion 151 is connected to the second pressing portion 13 through the second deformation right portion 141, and the first pressing left portion 152 is connected to the second pressing portion 13 through the second deformation left portion 142. By providing two first pressing portions 15, the contact area between the pressing portion and the silencer cavity 30 is further increased, and the stability of the assembly of the silencer cavity 30 is further improved.

[0037] Based on the same technical concept, the embodiment of the second aspect of the present invention provides a compressor, including the muffler chamber pressing card 10 of the embodiment of the first aspect, such as Figure 4 As shown, it also includes a cylinder head 20, a muffler cavity 30, a cylinder head gasket 40 and a valve plate 50. The air inlet of the cylinder head gasket 40 corresponds to the air inlet of the valve plate 50 and fits on the valve plate 50, and the mouth 31 of the muffler cavity 30 corresponds to the air inlet of the cylinder head gasket 40 and fits on the cylinder head gasket 40. The muffler cavity clamping card 10 is pressed between the cylinder head 20 and the muffler cavity 30, the clamping surface of the first clamping part 15 is close to the axial direction of the mouth 31 of the muffler cavity 30, and the clamping surface of the second clamping part 13 is away from the axial direction of the mouth 31 of the muffler cavity 30.

[0038] The position of the first pressing part 15 is higher than the second pressing part 13. The first pressing part 15 is preferentially located at the upper part of the first silencer cavity 30 corresponding to the position of the air intake port of the valve plate 50, and the second pressing part 13 then presses the middle part of the silencer cavity 30. This structure enables the silencer cavity pressing card 10 to press the silencer cavity 30 from different directions, ensuring the stability of the installation of the silencer cavity 30. In addition, the first pressing part 15 presses toward the mouth 31 of the silencer cavity, which can effectively ensure that the mouth 31 of the silencer cavity is evenly and tightly fitted at the air intake port of the cylinder head gasket 40, further improving the sealing of the silencer cavity 30 assembly to prevent leakage of the compressor.

[0039] Based on the same technical concept, the embodiment of the third aspect of the present invention provides a refrigeration device, including the compressor of the embodiment of the second aspect. The two-stage pressing part presses the silencer cavity 30 from different directions, which effectively improves the stability of the assembly of the silencer cavity 30. The three deformation parts can undergo elastic deformation successively, the length of the elastic deformation is longer, and the contact area between the pressing part and the silencer cavity 30 is larger, the pressure on the silencer cavity 30 is reduced, and the valve plate 50 near the silencer cavity 30 is not easy to deform, so that the suction valve plate 60 is tightly closed, reducing the number of times the refrigeration equipment needs to be repaired due to leakage, and effectively improving the service life of the refrigeration equipment.

[0040] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A muffler chamber pressing card, characterized in that: The muffler chamber clamping card is an integrally formed bent plate, comprising a first clamping portion, a second clamping portion, a first deformation portion, a second deformation portion, a third deformation portion, a first support portion, and a second support portion; The first supporting portion is connected to a first end of the first deforming portion in a length direction, and a plane where the first deforming portion is located forms a first inclination angle with a plane where the first supporting portion is located; a second end of the first deforming portion in a length direction is connected to a first end of the second pressing portion in a width direction, and a plane where the second pressing portion is located is parallel to a plane where the first supporting portion is located; The second deformation portion and the third deformation portion are connected to the second end of the second pressing portion in the width direction; the third deformation portion is bent toward the first supporting portion, and the second deformation portion is bent away from the third deformation portion, and the plane where the second deformation portion is located forms a second inclination angle with the plane where the second pressing portion is located, and the plane where the second deformation portion is located forms a third inclination angle with the plane where the third deformation portion is located; The first pressing portion is connected to the edge of the second deformation portion and is parallel to the first supporting portion; the second supporting portion is connected to the edge of the third deformation portion and is parallel to the first supporting portion; The first support portion is a symmetrical U-shaped plate, the second support portion is a long strip plate, and the symmetry axis of the first support portion coincides with the symmetry axis of the second support portion; The projection of the first deformation portion on the plane where the first supporting portion is located and the projection of the third deformation portion on the plane where the second supporting portion is located both coincide with the symmetry axis of the first supporting portion; The first inclination angle and the second inclination angle are both 10-20 degrees, and the third inclination angle is 20-30 degrees; The first pressing portion includes a first pressing right portion and a first pressing left portion, and the second deforming portion includes a second deforming right portion and a second deforming left portion; The second deformed right portion and the second deformed left portion are symmetrically arranged at two end edges of the second pressing portion; The first pressing right portion is connected to the second pressing portion through the second deformed right portion, and the first pressing left portion is connected to the second pressing portion through the second deformed left portion.

2. The muffler chamber compression card according to claim 1, characterized in that: A rubber layer is disposed on the pressing surface of the first pressing portion and the pressing surface of the second pressing portion.

3. A compressor, comprising a cylinder head, a muffler cavity, a cylinder head gasket and a valve plate, characterized in that: It also includes the muffler chamber compression card according to any one of claims 1 to 2; The air intake port of the cylinder head gasket corresponds to the air intake port of the valve plate and is attached to the valve plate; The mouth of the muffler cavity corresponds to the air intake port of the cylinder head gasket and fits on the cylinder head gasket; The silencer chamber clamping card is pressed between the cylinder head and the silencer chamber, the clamping surface of the first clamping part is close to the axial direction of the mouth of the silencer chamber, and the clamping surface of the second clamping part is far away from the axial direction of the mouth of the silencer chamber.

4. A refrigeration device, characterized in that: Comprising the compressor as claimed in claim 3.

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