Damping mounting device for a refrigerator compressor

Abstract

The application relates to the technical field of refrigerator devices, in particular to a damping mounting device for a refrigerator compressor, which comprises a fastening screw, a fixing sleeve, a foot pad and a nut, the fixing sleeve is provided with a first screw through hole, the fixing sleeve is arranged in the foot pad, the foot pad is arranged through a connecting through hole of a compressor foot plate, and the damping mounting device further comprises a damping gasket and a sleeve cap, the damping gasket is arranged on a refrigerator bottom plate, the sleeve cap is provided with a fourth screw through hole, an annular groove is arranged on the lower end surface of the sleeve cap, the fixing sleeve and the foot pad are arranged on the damping gasket, the sleeve cap is arranged on the foot pad, and the upper end surface of the fixing sleeve is matched and arranged in the annular groove. The damping gasket, the foot pad and the sleeve cap completely wrap and fix the fixing sleeve, so that the noise and vibration generated by the impact of the fixing sleeve, the refrigerator bottom plate and the nut are effectively reduced, and the damping mounting device is simple in structure and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of refrigerator equipment technology, and more particularly to a vibration damping mounting device for a refrigerator compressor. Background Technology

[0002] As a core component of refrigerators, the compressor is currently typically secured to the refrigerator using feet, along with fastening screws, fixing sleeves, flat washers, elastic washers, and nuts. The fixing sleeves are mounted on the fastening screws and secured by washers, elastic washers, and nuts. During compressor operation, the torque of the fastening screws decreases (loosens), causing the fixing sleeves to loosen. This results in the fixing sleeves moving vertically and radially, leading to high-frequency collisions between the fixing sleeves and the compressor base plate, fastening screws, and flat washers, thus worsening refrigerator noise and vibration. Furthermore, the vibrations generated by the compressor are transmitted to the refrigerator base plate through the feet. Because the current compressor feet have a simple structure and high rigidity, they deform little upon impact and cannot effectively absorb the kinetic energy of the compressor's vibrations, further exacerbating the refrigerator's vibration. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a vibration damping installation device for refrigerator compressors that has a simple structure and good vibration damping effect.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a vibration damping installation device for a refrigerator compressor, including fastening screws, fixing sleeves, foot pads and nuts, a first screw through hole provided in the fixing sleeve, the fixing sleeve being set in the foot pad, the foot pad being set through the connecting through hole of the compressor foot plate, and also including a vibration damping pad and a cap, the vibration damping pad being set on the refrigerator bottom plate, a second screw through hole provided in the refrigerator bottom plate, and a third screw through hole provided in the vibration damping pad;

[0005] The cap has a fourth screw through hole, and the lower end face of the cap has an annular groove. The fixing sleeve and the foot pad are both set on the vibration damping pad. The cap is set on the foot pad, and the upper end face of the fixing sleeve is matched and set in the annular groove.

[0006] The fastening screws pass through the second screw hole, the third screw hole, the first screw hole, and the fourth screw hole in sequence to engage with the nut.

[0007] Furthermore, both the vibration damping pads and the caps are made of plastic.

[0008] Furthermore, the vibration damping pad includes a vibration damping pad body, a first positioning post is provided in the center of the vibration damping pad body, a third screw through hole is provided in the center of the first positioning post, the first positioning post is matched and provided in the fixed sleeve, and the connection and cooperation between the first positioning post and the fixed sleeve is an interference fit.

[0009] Furthermore, the damping pad body is provided with at least one first arc-shaped boss, the foot pad includes a foot pad body, the bottom of the foot pad body is provided with at least one arc-shaped groove, and a first arc-shaped boss is matched and disposed in an arc-shaped groove.

[0010] Furthermore, a second positioning post is provided at the top center of the foot pad body. The second positioning post passes through the connecting through hole of the compressor foot plate. A fixing sleeve installation through hole is provided in the foot pad body. The fixing sleeve is located in the center of the foot pad body, and the fixing sleeve is installed in the fixing sleeve installation through hole. The fixing sleeve and the foot pad are connected by an interference fit.

[0011] Furthermore, a vibration damping and buffering cavity is provided in the foot pad body, and the vibration damping and buffering cavity is located in the middle of the foot pad body in the horizontal direction.

[0012] Furthermore, the vibration damping buffer cavity is U-shaped.

[0013] Furthermore, at least one second arc-shaped boss is provided on the inner wall of the mounting through hole of the fixed sleeve, and at least one arc-shaped hole is provided on the fixed sleeve, with one second arc-shaped boss matched and set in one arc-shaped hole.

[0014] Furthermore, the fourth screw through hole is located in the exact center of the annular groove, and the connection between the fixing sleeve and the annular groove is an interference fit.

[0015] Furthermore, it also includes a flat washer and an elastic washer, which are sequentially arranged between the nut and the cap.

[0016] The beneficial effects of this invention are as follows: By incorporating vibration damping pads and caps, the invention completely encloses and fixes the fixing sleeve. The lower end face of the fixing sleeve contacts the vibration damping pads, preventing direct contact between the fixing sleeve and the refrigerator base plate. The upper end face of the fixing sleeve is inserted into the annular groove of the cap, preventing direct contact between the fixing sleeve and the nut. This effectively reduces the noise and vibration generated by the impact between the fixing sleeve and the refrigerator base plate and the nut. Furthermore, this vibration damping installation device has a simple structure and is easy to use.

[0017] A vibration damping chamber is provided in the foot pad body, located in the exact center of the foot pad body in the horizontal direction. When the foot pad is subjected to vertical compression from the compressor foot plate, the vibration damping chamber contracts and deforms, absorbing the energy transmitted from the compressor vibration, reducing the vibration transmitted from the compressor to the refrigerator bottom plate, and further improving the vibration damping effect. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0020] Figure 3 Schematic diagram of the fixed sleeve;

[0021] Figure 4 This is a schematic diagram of the bottom of the foot pad;

[0022] Figure 5 This is a schematic diagram of the top of the foot pad;

[0023] Figure 6 This is a cross-sectional view of the foot pad.

[0024] Figure 7 This is a schematic diagram of the structure of the vibration damping pad;

[0025] Figure 8 This is a structural diagram of a cap;

[0026] The components are marked as follows: 1. Fastening screw; 2. Fixing sleeve; 21. First screw through hole; 22. Arc-shaped hole; 3. Foot pad; 31. Foot pad body; 31. Vibration damping buffer cavity; 311. Arc-shaped groove; 32. Second positioning post; 33. Fixing sleeve mounting through hole; 331. Second arc-shaped boss; 332. Nut; 4. Compressor foot plate; 5. Vibration damping pad; 6. Third screw through hole; 61. Vibration damping pad body; 62. First arc-shaped boss; 621. First positioning post; 63. Cap; 7. Annular groove; 71. Fourth screw through hole; 72. Refrigerator bottom plate; 8. Flat washer; 9. Elastic washer; 10. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 8 As shown, the present invention provides a vibration damping installation device for a refrigerator compressor, comprising a fastening screw 1, a fixing sleeve 2, a foot pad 3, and a nut 4. The fixing sleeve 2 is provided with a first screw through hole 21, and the fixing sleeve 2 is disposed in the foot pad 3. The foot pad 3 is disposed through the connecting through hole of the compressor foot plate 5. It also includes a vibration damping pad 6 and a cap 7. The vibration damping pad 6 is disposed on the refrigerator bottom plate 8, and the refrigerator bottom plate 8 is provided with a second screw through hole. The vibration damping pad 6 is provided with a third screw through hole 61.

[0029] The cap 7 is provided with a fourth screw through hole 72, and the lower end face of the cap 7 is provided with an annular groove 71. The fixing sleeve 2 and the foot pad 3 are both set on the vibration damping pad 6, the cap 7 is set on the foot pad 3, and the upper end face of the fixing sleeve 2 is matched and set in the annular groove 71.

[0030] The fastening screw 1 passes through the second screw through hole, the third screw through hole 61, the first screw through hole 21, and the fourth screw through hole 72 in sequence, and cooperates with the nut 4 to connect the compressor foot plate 5 to the refrigerator base plate 8, that is, to connect the refrigerator and the compressor together.

[0031] This invention, by incorporating vibration damping pads 6 and caps 7, completely encloses and secures the fixing sleeve 2. The lower end face of the fixing sleeve 2 contacts the vibration damping pads 6, preventing direct contact between the fixing sleeve 2 and the refrigerator base plate 8. The upper end face of the fixing sleeve 2 is inserted into the annular groove 71 of the cap 7, preventing direct contact between the fixing sleeve 2 and the nut 4. This effectively reduces the noise and vibration generated by the impact between the fixing sleeve 2 and the refrigerator base plate 8 and the nut 4. Furthermore, this vibration damping installation device has a simple structure and is easy to use.

[0032] Specifically, the vibration damping pad 6 and the cap 7 are in direct contact with the fixed sleeve 2. In order to reduce the damage to the fixed sleeve 2 when vibration occurs and to ensure the vibration damping effect of the vibration damping pad 6 and the cap 7, the materials of the vibration damping pad 6 and the cap 7 are preferably plastic.

[0033] The function of the vibration damping pad 6 is to isolate the direct contact between the fixing sleeve 2 and the refrigerator base plate 8, thereby reducing vibration. A preferred structure of the vibration damping pad 6 of this invention is as follows: (Example...) Figure 1 , Figure 2 , Figure 6 As shown, the vibration damping pad 6 includes a vibration damping pad body 62. A first positioning post 63 is disposed in the center of the vibration damping pad body 62. The upper end face of the first positioning post 63 is rounded. A third screw through hole 61 is disposed in the center of the first positioning post 63. The first positioning post 63 is matched and disposed in the fixing sleeve 2, and the connection between the first positioning post 63 and the fixing sleeve 2 is an interference fit. The first positioning post 63 plays a positioning and connecting role, which can improve the connection between the vibration damping pad 6 and the fixing sleeve 2, ensuring the vibration damping effect of the vibration damping pad 6, and facilitates installation by positioning it.

[0034] For example Figure 1As shown, the vibration damping pad 6 is not only in contact with the fixed sleeve 2, but also connected to the foot pad 3. To further improve the installation stability of the vibration damping pad 6, at least one first arc-shaped protrusion 621 is provided on the vibration damping pad body 62. The foot pad 3 includes a foot pad body 31, and at least one arc-shaped groove 32 is provided on the bottom of the foot pad body 31. One first arc-shaped protrusion 621 is matched and disposed in one arc-shaped groove 32. Preferably, there are four first arc-shaped protrusions 621 and arc-shaped grooves 32. The length of the central arc of the first arc-shaped protrusion 621 and the arc-shaped groove 32 is 1 / 4 of the circumference of its central circle. By providing the first arc-shaped protrusion 621 and the arc-shaped groove 32, not only can the connection stability of the vibration damping pad 6 be improved and its installation be facilitated, but also, when the foot pad 3 is squeezed from the compressor foot plate 5 in the tangential direction, the first arc-shaped protrusion 621 undergoes elastic deformation in the arc-shaped groove 32, absorbing the energy transmitted from the compressor vibration and reducing the vibration transmitted from the compressor to the refrigerator bottom plate 8.

[0035] A preferred structure of the foot pad body 31 is as follows: For example Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, a second positioning post 33 is provided at the top center of the foot pad body 31. The second positioning post 33 passes through the connecting through hole of the compressor foot plate 5. A fixing sleeve mounting through hole 331 is provided in the foot pad body 31. The fixing sleeve mounting through hole 331 is located at the center of the foot pad body 31. The fixing sleeve 2 is provided in the fixing sleeve mounting through hole 331, and the fixing sleeve 2 and the foot pad 3 are connected by an interference fit.

[0036] To further improve the vibration damping effect, a vibration damping buffer cavity 311 is provided in the foot pad body 31. The vibration damping buffer cavity 311 is located in the center of the foot pad body 31 in the horizontal direction and is connected to the mounting through hole 331 of the fixing sleeve. When the foot pad 3 is squeezed vertically from the compressor foot plate 5, the vibration damping buffer cavity 311 contracts and deforms, absorbing the energy transmitted from the compressor vibration, reducing the vibration transmitted from the compressor to the refrigerator bottom plate 8, and further improving the vibration damping effect. To ensure the effectiveness of the vibration damping buffer cavity 311, the vibration damping buffer cavity 311 is U-shaped. The vibration damping buffer cavity 311 includes an upper horizontal part and a lower vertical part. The vertical part is located on both sides of the horizontal part, and the height of the horizontal part is three times the height of the vertical part. The width of the vertical part is the same as the wall thickness of its corresponding foot pad body.

[0037] To further reduce the possibility of the fixed sleeve 2 moving up and down and radially due to the loosening of the sleeve caused by the torque decay of the screw 1, at least one second arc-shaped boss 332 is provided on the inner wall of the mounting through hole 331 of the fixed sleeve, and at least one arc-shaped hole 22 is provided on the fixed sleeve 2. One second arc-shaped boss 332 is matched and set in one arc-shaped hole 22. The number of second arc-shaped bosses 332 and arc-shaped holes 22 is preferably 4. This arrangement also makes it easier to install the fixed sleeve 2.

[0038] To reduce the possibility of misalignment of the cap 7, the fourth screw through hole 72 is located in the center of the annular groove 71, and the connection between the fixing sleeve 2 and the annular groove 71 is an interference fit.

[0039] To further improve the installation stability of the entire vibration damping device, for example... Figure 1 , Figure 2 As shown, the present invention also includes a flat washer 9 and an elastic washer 10, which are arranged sequentially between the nut 4 and the cap 7.

Claims

1. A damping mounting device for a refrigerator compressor, comprising a fastening screw (1), a fixing sleeve (2), a foot pad (3) and a nut (4), a first screw through hole (21) is arranged in the fixing sleeve (2), the fixing sleeve (2) is arranged in the foot pad (3), the foot pad (3) is arranged through a connecting through hole of a compressor foot plate (5), characterized in that: Also include damping washer (6) and cover cap (7), damping washer (6) is arranged on the refrigerator bottom plate (8), the second screw through hole is arranged in the refrigerator bottom plate (8), the third screw through hole (61) is arranged in the damping washer (6); The fourth screw through hole (72) is arranged in the cover cap (7), the annular groove (71) is arranged on the lower end surface of the cover cap (7), the fixed sleeve (2) and the foot pad (3) are arranged on the damping washer (6), the cover cap (7) is arranged on the foot pad (3), and the upper end surface of the fixed sleeve (2) is matched and arranged in the annular groove (71); The fastening screw (1) passes through the second screw through hole, the third screw through hole (61), the first screw through hole (21) and the fourth screw through hole (72) in turn and is matched with the nut (4); The materials of the damping washer (6) and the cover cap (7) are plastic, the damping washer (6) includes a damping washer body (62), a first positioning column (63) is arranged in the middle of the damping washer body (62), the third screw through hole (61) is arranged in the middle of the first positioning column (63), the first positioning column (63) is matched and arranged in the fixed sleeve (2), and the first positioning column (63) is connected and matched with the fixed sleeve (2) in an interference fit mode, at least one first arc-shaped boss (621) is arranged on the damping washer body (62), the foot pad (3) includes a foot pad body (31), and at least one arc-shaped groove (32) is arranged on the bottom of the foot pad body (31), one first arc-shaped boss (621) is matched and arranged in one arc-shaped groove (32).

2. The damping mounting device for a refrigerator compressor according to claim 1, characterized in that: A second positioning column (33) is arranged in the middle of the top of the foot pad body (31), the second positioning column (33) passes through the connecting through hole of the compressor foot plate (5) and is arranged, a fixed sleeve mounting through hole (331) is arranged in the foot pad body (31), the fixed sleeve mounting through hole (331) is located in the middle of the foot pad body (31), the fixed sleeve (2) is arranged in the fixed sleeve mounting through hole (331), and the fixed sleeve (2) is connected and matched with the foot pad (3) in an interference fit mode.

3. The damping mounting device for a refrigerator compressor according to claim 2, characterized in that: A damping and buffering cavity (311) is arranged in the foot pad body (31), and the damping and buffering cavity (311) is located in the middle of the foot pad body (31) in the horizontal direction.

4. The damping mounting device for a refrigerator compressor according to claim 3, characterized in that: The damping and buffering cavity (311) is in the shape of a Chinese character "Mu".

5. The damping mounting device for a refrigerator compressor according to claim 1, wherein: At least one second arc-shaped boss (332) is arranged on the inner wall of the fixed sleeve mounting through hole (331), at least one arc-shaped hole (22) is arranged on the fixed sleeve (2), and one second arc-shaped boss (332) is matched and arranged in one arc-shaped hole (22).

6. The damping mounting device for a refrigerator compressor according to claim 1, wherein: The fourth screw through hole (72) is located in the middle of the annular groove (71), and the fixed sleeve (2) is connected and matched with the annular groove (71) in an interference fit mode.

7. The damping mounting device for a refrigerator compressor according to any one of claims 1 to 6, characterized in that: Also include flat washer (9) and elastic washer (10), flat washer (9) and elastic washer (10) are arranged between the nut (4) and the cover cap (7) in sequence.

Images