CN216199293U - Vibration and noise reduction components, fans and range hoods - Google Patents

Abstract

The utility model relates to the technical field of fan structures, in particular to a vibration and noise reduction component, comprising a vibration and noise reduction body provided with a first fixing hole and a fixing groove; There is a limit protrusion. The vibration and noise reduction body, the sound insulation buffer and the limit protrusion are all annular structures. A limit through hole is formed in the center of the vibration and noise reduction body, and the diameter of the inner ring of the sound insulation buffer is not less than the limit The diameter of the through hole and the diameter of the inner ring of the limit protrusion are equal to the diameter of the limit through hole. The limit protrusion is composed of a sound insulation board and a sound absorbing board. A buffer gap is formed between the sound absorbing board and the sound absorbing board. A number of sound-absorbing holes are provided; a fan and a range hood including the vibration-damping and noise-reducing components are also provided. The utility model avoids the damage of the fixed seat caused by the vibration of the motor, enhances the effect of vibration reduction and noise reduction, and can also prolong the service life of the vibration reduction and noise reduction component, and has strong practicability.

Description

Vibration and noise reduction components, fans and range hoods

technical field

The utility model relates to the technical field of fan structures, in particular to a vibration and noise reduction component, a fan and a range hood.

Background technique

The fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine and is widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. Cooling, ventilation and drafting of boilers and industrial furnaces; cooling and ventilation in air-conditioning equipment and household appliances; drying and selection of grains, wind tunnel air sources and inflation and propulsion of hovercraft, etc. However, the existing fans still have some deficiencies. The main defects are that the noise is large, and the power consumption is large when in use, so the vibration is large. Therefore, the vibration reduction and noise reduction of the fan has also become an important indicator for evaluating the quality of the fan.

In the prior art, the patent No. CN211501095U "A Noise Reduction Device for Fan" optimizes the vibration and noise reduction structure of the fan by setting the vibration reduction device and the noise reduction device, but its structure is complex and the operation is cumbersome, The investment cost and operating cost of the equipment are increased; the patent number CN208475417U "Vibration and noise reduction components, fans and range hoods" prevents the direct contact between the motor body and the volute by setting the vibration reduction and noise reduction components. All forces need to be transmitted through the vibration reduction and noise reduction device. Therefore, the vibration reduction and noise reduction component can perform vibration reduction treatment on the vibration force generated by the motor in all directions, and the vibration reduction effect is good. However, its noise reduction effect is not significant. Noise pollution is not only detrimental to the physical and mental health of the staff, but also affects the work efficiency of the staff to a certain extent, and the vibration reduction and noise reduction components are in direct contact with the motor, and long-term operation and contact can easily cause damage to the vibration reduction and noise reduction components. Its service life is limited.

Utility model content

In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a vibration and noise reduction component with a simple structure, good vibration reduction and noise reduction effect and long service life. For realizing the purpose of this utility model, adopt following technical scheme:

A vibration and noise reduction component, comprising a vibration and noise reduction body, a plurality of first fixing holes and a plurality of fixing grooves are arranged on the vibration reduction and noise reduction body; a sound insulation buffer pad is arranged on one side of the vibration reduction and noise reduction body , the vibration-damping and noise-reducing body is provided with a limiting protrusion on the side away from the sound-insulating buffer pad, the vibration-damping and noise-reducing body, the sound-proofing buffer pad and the limiting protrusion are all annular structures, and the vibration and noise reduction A limit through hole is formed in the center of the body, the diameter of the inner ring of the sound insulation buffer is not less than the diameter of the limit through hole, and the first fixing hole and the fixing groove are arranged on the vibration and noise reduction body outside the sound insulation buffer The diameter of the inner ring of the limit protrusion is equal to the diameter of the limit through hole, and the limit protrusion is composed of a sound insulation board and a sound absorption board, and the sound absorption board is provided with a number of sound absorption holes evenly distributed, And a buffer gap is formed between the sound insulation board and the sound absorption board.

Preferably, the first fixing holes are provided with at least three, and the first fixing holes are uniformly arranged on the vibration and noise reduction body in a circumferential manner; the fixing grooves are provided with at least three, and the fixing grooves are in the shape of The circumference is evenly arranged on the vibration and noise reduction body.

Preferably, the first fixing hole and the fixing groove are arranged at intervals.

Preferably, a sound-absorbing coil is provided on the inner wall of the sound-absorbing hole, and the material of the sound-absorbing coil is a sound-absorbing cotton board.

Preferably, the buffer gap is filled with buffer material.

Preferably, the buffer material is one of sponge or rubber.

In order to achieve the above purpose, the present invention also provides a fan, which includes the above vibration and noise reduction components.

Preferably, it also includes a fixing frame and a motor, the fixing frame is provided with a fixing seat, the fixing seat is an annular structure, and a mounting hole is formed in the center of the fixing seat, and a second fixing hole is formed on the fixing seat , and the second fixing hole is matched with the first fixing hole for inserting screws for fixing, and the periphery of the fixing seat is provided with a buffer groove; the motor is matched with the limit through hole and the installation hole, and the A fixing ring is arranged on the periphery of the motor, and a connecting piece is arranged on the side of the fixing ring close to the vibration reduction and noise reduction body, and the connecting piece is matched with the fixing groove.

Preferably, the connecting member is composed of a connecting rod and an elastic limiting member disposed at the end of the connecting rod, the elastic limiting member is either conical or triangular, and the length of the connecting rod is not greater than the sound insulation buffer The thickness of the pad, the diameter of the elastic stopper is larger than the diameter of the fixing groove.

In order to achieve the above purpose, the utility model also provides a range hood, including the above-mentioned fan.

Compared with the prior art, the beneficial effects of the present utility model are: the utility model is provided with a vibration-damping and noise-reducing body, and a sound-insulating buffer pad and a position-limiting protrusion are respectively provided on both sides of the vibration-damping and noise-reducing body to prevent the vibration and noise reduction. The contact between the motor and the fixing frame avoids the damage to the fixing seat caused by the vibration of the motor during operation; the limit protrusion is composed of a sound insulation board and a sound absorption board, which has a certain noise reduction effect, and a number of sound absorption boards are arranged on the sound absorption board. holes to further enhance the effect of sound absorption and noise reduction; the set sound insulation buffer pad plays a certain buffering role to prevent the horizontal force of the motor from causing damage to the vibration reduction and noise reduction body, and the buffer gap between the sound insulation board and the sound absorption board is within the buffer gap. The buffer material is filled to prevent the radial force from damaging the vibration and noise reduction body when the motor is working.

Description of drawings

1 is a schematic diagram of the overall structure of a vibration and noise reduction component of the present utility model;

2 is a schematic diagram of the overall structure of a vibration-damping and noise-reducing component of the present utility model from a bottom perspective;

3 is a schematic diagram of the overall structure of a fan of the present utility model after splitting;

4 is a schematic diagram of the overall structure of the connector in the utility model;

In the figure, 1-vibration and noise reduction body, 2-limiting through hole, 3-limiting protrusion, 301-sound insulation board, 302-sound-absorbing board, 303-buffering gap, 4-sound-absorbing hole, 5-sound-absorbing coil, 6-The first fixing hole, 7-fixing slot, 8-soundproof cushion, 9-fixing frame, 10-fixing seat, 11-installation hole, 12-second fixing hole, 13-buffer slot, 14-motor, 15 -Retaining ring, 16-connecting piece, 1601-connecting rod, 1602-elastic limiter.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Specific Example 1

1 is a schematic diagram of the overall structure of a vibration and noise reduction component of the present invention, and with reference to FIGS. 2 and 4 , it can be seen that a vibration and noise reduction component of the present invention includes a vibration and noise reduction body 1 , on the vibration and noise reduction body 1, there are 8 first fixing holes 6 that are evenly distributed around the circumference and 4 fixing grooves 7 that are evenly distributed around the circumference; 8. The vibration and noise reduction body 1 is provided with a limiting protrusion 3 on one side away from the sound insulation buffer pad 8 . In the present invention, the vibration and noise reduction body 1 , the sound insulation buffer pad 8 and the limiting protrusion 3 are all annular structures, wherein a limit through hole 2 is formed in the center of the vibration reduction and noise reduction body 1 , and the sound insulation buffer pad 8 The diameter of the inner ring is equal to the diameter of the limit through hole 2, and the first fixing hole 6 and the fixing groove 7 are arranged on the vibration and noise reduction body 1 outside the sound insulation buffer 8; the diameter of the inner ring of the limit protrusion 3 is the same as The diameters of the limit through holes 2 are equal, and the limit protrusion 3 is composed of a sound insulation board 301 and a sound absorption board 302. The sound absorption board 302 is provided with a number of sound absorption holes 4 evenly distributed, and the inner wall of the sound absorption hole 4 is provided with sound absorption Ring 5, the material of the sound-absorbing coil is a sound-absorbing cotton board, a buffer gap 303 is formed between the sound insulation board 301 and the sound-absorbing board 302, and the buffer gap 303 is filled with a buffer material made of sponge material.

Specific embodiment 2

A vibration-damping and noise-reducing component (not shown in the figure) of the present invention includes a vibration-damping and noise-reducing body 1, and the vibration-damping and noise-reducing body 1 is provided with four first fixing holes 6 that are evenly distributed around the circumference. and four fixed grooves 7 evenly distributed around the circumference, and the first fixed holes 6 and the fixed grooves 7 are arranged at intervals; a sound insulation buffer pad 8 is provided on one side of the vibration reduction and noise reduction body 1, and the vibration reduction and noise reduction body 1 is far away from the sound insulation. One side of the buffer pad 8 is provided with a limiting protrusion 3 . In the present invention, the vibration and noise reduction body 1 , the sound insulation buffer pad 8 and the limiting protrusion 3 are all annular structures, wherein a limit through hole 2 is formed in the center of the vibration reduction and noise reduction body 1 , and the sound insulation buffer pad 8 The diameter of the inner ring is larger than the diameter of the limit through hole 2, and the first fixing hole 6 and the fixing groove 7 are arranged on the vibration and noise reduction body 1 outside the sound insulation buffer 8; the diameter of the inner ring of the limit protrusion 3 is the same as The diameters of the limit through holes 2 are equal, and the limit protrusion 3 is composed of a sound insulation board 301 and a sound absorption board 302. The sound absorption board 302 is provided with a number of sound absorption holes 4 evenly distributed, and the inner wall of the sound absorption hole 4 is provided with sound absorption Ring 5, the material of the sound-absorbing coil is a sound-absorbing cotton board, a buffer gap 303 is formed between the sound insulation board 301 and the sound-absorbing board 302, and the buffer gap 303 is filled with a rubber material buffer material.

Specific embodiment 3

3 is a schematic diagram of the overall structure of a fan of the present utility model after disassembly, from which it can be seen that a fan of the present utility model includes the above-mentioned vibration and noise reduction components, as well as a fixing frame 9 and a motor 14: the fixed frame 9 and the motor 14. The frame 9 is provided with a ring-shaped fixing seat 10, a mounting hole 11 is formed in the center of the fixing seat 10, and a second fixing hole 12 matching the first fixing hole 6 is arranged on the fixing seat 10 for inserting screws for fixing In order to realize the fixing of the vibration reduction and noise reduction body 1 and the fixing frame 9, a buffer groove 13 is provided on the periphery of the fixing base 10 to provide a certain buffer space; the motor 14 is matched with the limit through hole 2 and the installation hole 11, so as to fix the motor In the limit through hole 2 and the installation hole 11, and on the periphery of the motor 14, a fixing ring 15 is provided. Insert the connecting piece 16 into the fixing slot 7 to fix the motor 14 and the vibration-damping and noise-reducing body 1 . In this embodiment, the connecting member 16 is composed of a connecting rod 1601 and a conical-shaped elastic limiting member 1602 disposed at the end of the connecting rod 1601 , and the length of the connecting rod 1601 is equal to the thickness of the soundproof cushion 8 to give full play to the For the buffering effect of the sound-insulating buffer pad 8, the diameter of the elastic limiting member 1602 is larger than the diameter of the fixing groove 7, which prevents the elastic limiting member 1602 from falling off after being clamped with the fixing groove 7, and enhances the stability of the connection.

Specific Example 4

A fan of the present invention (not shown in the figure) includes the above-mentioned vibration and noise reduction components, as well as a fixing frame 9 and a motor 14: the fixing frame 9 is provided with a fixing seat 10 of a ring structure, and the fixing seat A mounting hole 11 is formed in the center of the 10, and a second fixing hole 12 matching the first fixing hole 6 is provided on the fixing base 10 for inserting screws for fixing to realize the fixing of the vibration reduction and noise reduction body 1 and the fixing frame 9, A buffer groove 13 is provided on the periphery of the fixing base 10 to provide a certain buffer space; the motor 14 is matched with the limit through hole 2 and the installation hole 11, so as to fix the motor in the limit through hole 2 and the installation hole 11, and the motor 14 There is a fixing ring 15 on the periphery of the fixing ring 15, and the side of the fixing ring 15 close to the vibration and noise reduction body 1 is provided with a connecting piece 16 that matches the fixing groove 7, and the connecting piece 16 is inserted into the fixing groove 7 to realize the motor 14 and the Vibration and noise reduction body 1 is fixed. In the present embodiment, the connecting member 16 is composed of a connecting rod 1601 and a triangular-shaped elastic limiting member 1602 disposed at the end of the connecting rod 1601, and the length of the connecting rod 1601 is smaller than the thickness of the soundproof buffer pad 8, so as to give full play to the sound insulation Due to the buffering effect of the buffer pad 8, the diameter of the elastic limiting member 1602 is larger than the diameter of the fixing groove 7, which prevents the elastic limiting member 1602 from falling off after being clamped with the fixing groove 7, and enhances the stability of the connection.

Specific Example 5

A range hood of the utility model comprises the above-mentioned fan.

It can be seen from the above embodiments of the present utility model that the present utility model is provided with a vibration-damping and noise-reducing body, and sound-insulating buffer pads and limiting protrusions are respectively provided on both sides of the vibration-damping and noise-reducing body to prevent the motor from interacting with the motor. The contact between the fixed frames avoids the damage to the fixed seat caused by the vibration of the motor during operation; the limit protrusion is composed of a sound insulation board and a sound absorption board, which has a certain noise reduction effect, and a number of sound absorption holes are arranged on the sound absorption board, The effect of sound absorption and noise reduction is further enhanced; the set sound insulation buffer pad has a certain buffering effect to prevent damage to the vibration reduction and noise reduction body caused by the horizontal force when the motor is working, and the buffer gap between the sound insulation board and the sound absorption board is filled with buffers It can prevent the vibration and noise reduction body from being damaged by the radial force when the motor is working. It not only has a good vibration reduction effect, but also prolongs the service life of the vibration and noise reduction components, and has strong practicability.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Replacement should be included within the scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A vibration reduction and noise reduction component, characterized in that it comprises a vibration reduction and noise reduction body (1), and the vibration reduction and noise reduction body (1) is provided with several first fixing holes (6) and several fixing grooves (1). 7); a side surface of the vibration and noise reduction body (1) is provided with a sound insulation buffer pad (8), and a side surface of the vibration reduction and noise reduction body (1) away from the sound insulation buffer pad (8) is provided with a limit protrusion From (3), the vibration and noise reduction body (1), the sound insulation cushion (8) and the limiting protrusion (3) are all annular structures, and the center of the vibration and noise reduction body (1) forms a limit The position through hole (2), the inner ring diameter of the sound insulation buffer (8) is not less than the diameter of the position limit through hole (2), and the first fixing hole (6) and the fixing groove (7) are arranged in the sound insulation on the vibration and noise reduction body (1) other than the buffer pad (8); the diameter of the inner ring of the limiting protrusion (3) is equal to the diameter of the limiting through hole (2), and the limiting protrusion (3) It is composed of a sound insulation board (301) and a sound absorption board (302), the sound absorption board (302) is provided with a number of sound absorption holes (4) evenly distributed, and the sound insulation board (301) and the sound absorption board (302) ) to form a buffer gap (303). 2 . The vibration and noise reduction component according to claim 1 , wherein at least three first fixing holes ( 6 ) are provided, and the first fixing holes ( 6 ) are uniformly arranged around the vibration damping 2 . On the noise reduction body (1); the fixing grooves (7) are provided with at least three, and the fixing grooves (7) are uniformly arranged on the vibration and noise reduction body (1) in a circumferential manner. 3 . The vibration and noise reduction component according to claim 2 , wherein the first fixing hole ( 6 ) and the fixing groove ( 7 ) are arranged at intervals. 4 . 4 . The vibration and noise reduction component according to claim 1 , wherein a sound absorbing coil ( 5 ) is arranged on the inner wall of the sound absorbing hole ( 4 ), and the material of the sound absorbing coil is a sound-absorbing cotton board. 5 . 5 . The vibration and noise reduction component according to claim 1 , wherein the buffer gap ( 303 ) is filled with a buffer material. 6 . 6 . The vibration and noise reduction component according to claim 5 , wherein the buffer material is one of sponge or rubber. 7 . 7. A fan, characterized by comprising the vibration and noise reduction component according to any one of claims 1 to 6. 8. The fan according to claim 7, characterized in that it further comprises a fixing frame (9) and a motor (14), the fixing frame (9) is provided with a fixing seat (10), and the fixing seat (10) It is an annular structure, and a mounting hole (11) is formed in the center of the fixing seat (10), a second fixing hole (12) is arranged on the fixing seat (10), and the second fixing hole (12) is connected with The first fixing hole (6) is matched with the first fixing hole (6) and is used for inserting a screw for fixing, and a buffer groove (13) is provided on the periphery of the fixing seat (10); the motor (14) is connected with the limit through hole (2) and the installation hole (11) are matched, and a fixing ring (15) is provided on the periphery of the motor (14), and a connecting piece (16) is provided on the side of the fixing ring (15) close to the vibration and noise reduction body (1), And the connecting piece (16) is matched with the fixing groove (7). 9 . The fan according to claim 8 , wherein the connecting member ( 16 ) consists of a connecting rod ( 1601 ) and an elastic limiting member ( 1602 ) disposed at the end of the connecting rod ( 1601 ), the elastic limiting member ( 1602 ) being The positioning member (1602) is either conical or triangular, and the length of the connecting rod (1601) is not greater than the thickness of the soundproof cushion (8), and the diameter of the elastic limiting member (1602) is greater than the fixing groove (7) diameter. 10. A range hood, characterized in that it comprises the fan according to any one of claims 7 to 9.

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