Motor vibration reduction mechanism and air purifier

Abstract

The present invention proposes a motor vibration reduction mechanism and an air purifier having the structure, including a base, a motor and a screw, wherein a screw column is provided on the base, the screw column is provided with a sinking platform, the motor is provided with a cross beam arm, a fixing hole is provided at the end of the cross beam arm, the fixing hole is provided with a vibration reduction rubber ring abutting against the side wall of the fixing hole, and the bottom of the vibration reduction rubber ring abuts against the sinking platform, the vibration reduction rubber ring is provided with a through hole, the screw passes through the through hole and cooperates with the screw column. The air purifier includes a top cover, a fuselage and a motor vibration reduction mechanism arranged in sequence from top to bottom, and a filter screen, an air duct and a wind wheel are arranged in sequence in the fuselage from top to bottom. Through the compressibility of the vibration reduction rubber ring, the vibration reduction rubber ring can be vertically inserted into the fixing hole; by abutting the vibration reduction rubber ring against the side wall of the fixing hole, the screw passes through the through hole and cooperates with the screw column, so that the motor is fixed above the base, and when the shaft of the motor rotates, the vibration and abnormal noise of the whole machine can be eliminated through this design.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a motor vibration reduction mechanism and an air purifier having the structure. Background Art

[0002] In the prior art, the motor of the air purifier is placed on a base and then fixed to the base by screws. The screws are in rigid contact with the motor, and the motor is in rigid contact with the base. When the air purifier is turned on, the motor drives the wind wheel to rotate, and the motor rotor moves tangentially at high speed. During the high-speed movement of the motor, according to the theory of relativity, the motor stator housing will be subject to recoil force, and the motor itself will vibrate. Because the motor is in rigid contact with the base, the vibration of the motor causes the base to vibrate, which in turn causes the whole machine to shake and make abnormal noises, affecting the user experience. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a motor vibration reduction mechanism and an air purifier having the structure, which optimizes motor vibration reduction, eliminates the shaking and abnormal noise of the whole machine, thereby solving the problem of shaking and abnormal noise of the above-mentioned air purifier.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention proposes a motor vibration reduction mechanism, including a base, a motor and a screw, wherein a screw column is arranged on the base, the screw column is provided with a sinker, the motor is provided with a cross beam arm, the end of the cross beam arm is provided with a fixing hole, the fixing hole is provided with a vibration reduction rubber ring abutting against the side wall of the fixing hole, and the bottom of the vibration reduction rubber ring abuts against the sinker, the vibration reduction rubber ring is provided with a through hole, the screw passes through the through hole and cooperates with the screw column.

[0006] Furthermore, the vibration-damping rubber ring is provided with two outer rings, an inner ring is provided between the two outer rings, and the outer ring φF is larger than the inner ring φG.

[0007] Furthermore, the fixing hole is provided with an open groove whose inner ring can be plugged into the fixing hole.

[0008] Furthermore, the size relationship between the head φH of the screw and φF and φG of the vibration-damping rubber ring is φF>φH>φG.

[0009] Furthermore, the width C of the open groove is in the range of C=ΦG-ΦH+(3-5).

[0010] Furthermore, the open slot is provided with an inlet guide port, a straight line segment and an outlet guide port in sequence from the outside to the inside.

[0011] Furthermore, the inlet guide port and the straight line segment form an angle A, and the range of angle A is 30° to 45°; the arc shape of the outlet guide port forms an angle B, and the range of angle B is 60° to 75°.

[0012] Furthermore, the length of the straight line segment is E, E=(ΦG-ΦD)*K; K is a coefficient, and the range of the coefficient is 1.2 to 1.4.

[0013] Furthermore, the air purifier includes a top cover and a fuselage, the top cover is arranged on the upper side of the fuselage, and the fuselage is provided with a filter, an air duct and a wind wheel in sequence from top to bottom; the air duct is provided with an air duct inlet at one end facing the top cover, and an air duct outlet at the other end; the side wall of the fuselage is provided with an air inlet and an air outlet, the air inlet is located on the upper side of the air outlet, and also includes a motor vibration reduction mechanism, and the motor vibration reduction mechanism is arranged on the lower side of the fuselage.

[0014] Furthermore, the interior of the air duct is provided with a first cylindrical section and a second cylindrical section for secondary flow guidance when the air flows out of the air duct outlet, the connection between the first cylindrical section and the second cylindrical section is circumferentially extended, and the diameter of the first cylindrical section is smaller than the diameter of the second cylindrical section; the wind wheel is partially accommodated in the air duct, and the end of the wind wheel away from the motor is located at the connection between the third cylindrical section and the first cylindrical section.

[0015] The beneficial effects of the present invention are as follows: through the compressibility of the vibration-damping rubber ring, the vibration-damping rubber ring can be vertically inserted into the fixing hole; by abutting the vibration-damping rubber ring against the side wall of the fixing hole, the screw passes through the through hole and cooperates with the screw column, so that the motor is fixed above the base, and when the shaft of the motor rotates, the vibration and abnormal noise of the whole machine can be eliminated through this design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An exploded view of a motor vibration reduction mechanism proposed by the present invention;

[0017] Figure 2 The present invention proposes Figure 1 A cross-sectional view of the V portion;

[0018] Figure 3 The present invention proposes Figure 1 A front view of the W portion;

[0019] Figure 4 A screw view of a motor vibration reduction mechanism proposed by the present invention;

[0020] Figure 5 A view of an air purifier proposed by the present invention;

[0021] Figure 6 An exploded view of an air purifier proposed by the present invention;

[0022] Figure 7 The present invention proposes Figure 6 U-section view of the . DETAILED DESCRIPTION

[0023] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0024] Please refer to Figures 1 to 5 The present invention proposes a motor vibration reduction mechanism, including a base 62, a motor 61 and a screw 63. The base 62 is provided with a screw column 621, the screw column 621 is provided with a sinking platform 622, the motor 61 is provided with a cross beam arm 611, the end of the cross beam arm 611 is provided with a fixing hole 615, the fixing hole 615 is provided with a vibration reduction rubber ring 64 abutting against the side wall of the fixing hole 615, and the bottom of the vibration reduction rubber ring 64 abuts against the sinking platform, the vibration reduction rubber ring 64 is provided with a through hole 643, the screw 63 passes through the through hole 643 and cooperates with the screw column 621. In this embodiment, the base 62 is used to fix the motor 61, the sink 622 is used to provide a platform for placing the vibration-damping rubber ring 64, the fixing hole 615 is used to provide a fixed structure for the vibration-damping rubber ring 64, the through hole 643 is used to provide a space for the screw 63 to pass through the vibration-damping rubber ring 64, the screw 63 and the screw column 621 are used to fix the motor 61 to the base 62, and the vibration-damping rubber ring 64 is used to eliminate the vibration caused by the motor when the motor 61 rotates. Specifically, through the compressibility of the vibration-damping rubber ring 64, the vibration-damping rubber ring 64 can be vertically inserted into the fixing hole 615; by abutting the vibration-damping rubber ring 64 against the side wall of the fixing hole 615, the screw 63 passes through the through hole and cooperates with the screw column 621, so that the motor 61 is fixed above the base, and when the shaft of the motor 61 rotates, the vibration and abnormal noise of the whole machine can be eliminated through this design.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3 The vibration-damping rubber ring 64 is provided with two outer rings, an inner ring is provided between the two outer rings, and the outer ring φF is larger than the inner ring φG. In this embodiment, after the vibration-damping rubber ring 64 is vertically inserted into the fixing hole 615, the inner ring φG of the vibration-damping rubber ring 64 abuts against the hole wall of the fixing hole 615 and the outer ring φF covers the fixing hole 615.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 The fixing hole 615 is provided with an open groove into which the inner ring can be inserted. In this embodiment, the open groove is used to provide a space for the vibration-damping rubber ring 64 to allow the inner ring to be inserted into the fixing hole 615.

[0027] Please refer to Figure 1 , Figure 2 and Figure 4 , the size relationship between the head φH of the screw 63 and the φF and φG of the vibration-damping rubber ring 64 is φF>φH>φG. In this embodiment, according to the relationship of ΦF>ΦH>ΦG, it is ensured that the head of the screw 63 can be pressed down to fix the vibration-damping rubber ring 64, where ΦH is calculated based on the drop and operating torque of the whole machine. Specifically, when the screw 63 is tightened with the screw column 621, the head of the screw 63 will press down the vibration-damping rubber ring 64 to further fix the vibration-damping rubber ring 64.

[0028] Please refer to Figures 1 to 4 , the range of the width C of the opening groove is C=ΦG-ΦH+(3-5). In the present embodiment, the range of the width C of the opening groove is C=ΦG-ΦH+(3-5), which is the optimal width.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 , the opening groove is provided with an inlet guide port 612, a straight line segment 613 and an outlet guide port 614 from the outside to the inside. The inlet guide port 612 and the straight line segment 613 form an angle A, and the range of angle A is 30°~45°; the arc of the outlet guide port 614 forms an angle B, and the range of angle B is 60°~75°. The length of the straight line segment 613 is E, E=(ΦG-ΦD)*K; K is a coefficient, and the range of the coefficient is 1.2~1.4. In this embodiment, the angle A of the opening groove is in the range of 30°~45° according to the drop of the whole machine and the operating torque, and the angle B of the opening groove is in the range of 60°~75° according to the drop of the whole machine and the operating torque, and the straight line segment E is determined according to the interference between the inner diameter ΦG of the vibration-damping rubber ring 64 and the fixing hole ΦD.

[0030] Please refer to Figure 1 , Figure 5 and Figure 6An air purifier includes a top cover 1 and a body 3. The top cover 1 is arranged on the upper side of the body 3. A filter 2, an air duct 4 and a wind wheel 5 are arranged in the body 3 from top to bottom; an air duct 4 air inlet is arranged at one end of the air duct 4 facing the top cover 1, and an air duct 4 air outlet is arranged at the other end; an air inlet hole and an air outlet are arranged on the side wall of the body 3, and the air inlet hole is located on the upper side of the air outlet. The air purifier also includes a motor vibration reduction mechanism, which is arranged on the lower side of the body 3. In this embodiment, the top cover 1 is used to cover the top of the fuselage 3, the motor vibration reduction mechanism is used to support the fuselage 3 and drive the wind wheel 5 mounted on the rotating shaft of the motor 61 to rotate, the fuselage 3 is used to provide a placement space for the air duct 4, the wind wheel 5, the motor 61 and the filter 2, the air inlet 31 is used to provide a space for air flow into the air purifier, the filter 2 is used to filter the air when passing through the filter 2, the air inlet of the air duct is used to provide a space for air flow into the air duct 4, the air outlet of the air duct is used to provide a space for air flow out of the air duct, the air outlet 31 is used to provide a space for air flow out of the air purifier, and the wind wheel 5 is used to make the air flow flow into the air inlet 31 and flow through the air duct and then flow out from the air outlet 32 ​​when the motor 61 drives the wind wheel 5 to rotate. Specifically, when the motor 61 drives the wind wheel 5 to rotate, the air outlet 31 is arranged on the lower side of the fuselage to avoid the accumulation of dust, and the air in the room is polluted for the second time when the air purifier is started, and the user can immediately feel the fresh air effect of the air blowing out of the air purifier. Through the compressibility of the vibration-damping rubber ring 64, the vibration-damping rubber ring 64 can be inserted into the fixing hole 615 vertically or inserted into the fixing hole 615 in the direction of the slot opening, and the opening slot is easier to insert into the fixing hole 615; by abutting the vibration-damping rubber ring 64 with the side wall of the fixing hole 615, the screw 63 passes through the through hole and cooperates with the screw column 621, so that the motor 61 is fixed above the base 62, and the rotating shaft of the motor 61 is rotating. The design scheme can eliminate the vibration and abnormal sound of the whole machine. The air outlet 32 ​​is arranged on the lower side of the fuselage. Avoid the accumulation of dust, and the air in the room is polluted for the second time when the air purifier is started, and the user can immediately feel the fresh air effect of the air blowing out of the air purifier.

[0031] Please refer to Figures 5 to 7The interior of the air duct 4 is provided with a first cylindrical section 41 and a second cylindrical section 42 for secondary flow diversion when the air flows out of the air duct outlet. The junction of the first cylindrical section 41 and the second cylindrical section 42 is circumferentially expanded, and the diameter of the first cylindrical section 41 is smaller than the diameter of the second cylindrical section 42. The wind wheel is partially accommodated in the air duct, and the end of the wind wheel away from the motor is located at the junction of the third cylindrical section and the first cylindrical section. In this embodiment, the first cylindrical section 41 is used to divert the air flow for the first time when it flows out of the air duct outlet (not marked), and the second cylindrical section 42 is used to divert the air flow for the second time when it flows out of the air duct outlet. The junction of the first cylindrical section 41 and the second cylindrical section 42 is circumferentially expanded in order to make the diameter D1 of the first cylindrical section 41 smaller than the diameter D2 of the second cylindrical section 42. Specifically, when the motor 6 drives the wind wheel 5 to rotate, because the diameter D1 of the first cylindrical section 41 is smaller than the diameter D2 of the second cylindrical section 42, the airflow can be diverted through the first cylindrical section 41 and the second cylindrical section 42 when it flows into the air inlet 31 and flows through the air duct 4, and finally flows out from the air outlet 32. The air outlet of the air duct optimizes the pressure of the air outlet of the air duct by diverting the air through the first cylindrical section 41 and the second cylindrical section 42 of the air duct 3, and avoids the noise caused by turbulence formed by direct diversion. In this embodiment, the connection between the third cylindrical section 43 and the first cylindrical section 41 is circumferentially expanded to make the diameter D3 of the third cylindrical section 43 smaller than the diameter D1 of the first cylindrical section 41. Specifically, the end of the wind wheel 5 is located at the junction of the third cylindrical section 43 and the first cylindrical section 41. The diameter D3 of the third cylindrical section 43 is smaller than the diameter D1 of the first cylindrical section 41. This position makes it convenient for the airflow to blow toward the first cylindrical section 41 and the second cylindrical section 43 respectively when the wind wheel 5 rotates, and then flow downward along the first cylindrical section 41 and the second cylindrical section 42 respectively to realize secondary diversion.

[0032] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. An air purifier, comprising a top cover and a body, wherein the top cover is arranged on the upper side of the body, and a filter screen, an air duct and a wind wheel are arranged in the body from top to bottom; an air duct inlet is arranged at one end of the air duct facing the top cover, and an air duct outlet is arranged at the other end; an air inlet hole and an air outlet hole are arranged on the side wall of the body, and the air inlet hole is located on the upper side of the air outlet hole, characterized in that: It also includes a motor vibration reduction mechanism, which is arranged on the lower side of the fuselage, and the motor vibration reduction mechanism includes a base, a motor and a screw, the base is provided with a screw column, the screw column is provided with a sinking platform, the motor is provided with a cross beam arm, the end of the cross beam arm is provided with a fixing hole, the fixing hole is provided with a vibration reduction rubber ring abutting against the side wall of the fixing hole, and the bottom of the vibration reduction rubber ring abuts against the sinking platform, the vibration reduction rubber ring is provided with a through hole, the screw passes through the through hole and cooperates with the screw column; The interior of the air duct is provided with a first cylindrical section and a second cylindrical section for secondary flow guidance when the air flows out of the air duct outlet, the connection between the first cylindrical section and the second cylindrical section is circumferentially extended, and the diameter of the first cylindrical section is smaller than the diameter of the second cylindrical section; the wind wheel is partially accommodated in the air duct, and the end of the wind wheel away from the motor is located at the connection between the third cylindrical section and the first cylindrical section.

2. The air purifier according to claim 1, characterized in that: The vibration-damping rubber ring is provided with two outer rings, an inner ring is provided between the two outer rings, and the outer ring φF is larger than the inner ring φG.

3. The air purifier according to claim 2, characterized in that: The fixing hole is provided with an opening groove whose inner ring can be plugged into the fixing hole.

4. The air purifier according to claim 3, characterized in that: The size relationship between the head φH of the screw and φF and φG of the vibration-damping rubber ring is φF>φH>φG.

5. The air purifier according to claim 3, characterized in that: The open slot is provided with an inlet guide port, a straight line segment and an outlet guide port in sequence from outside to inside.

6. The air purifier according to claim 5, characterized in that: The inlet guide port and the straight line segment form an angle A, and the range of angle A is 30° to 45°; the arc shape of the outlet guide port forms an angle B, and the range of angle B is 60° to 75°.

7. The air purifier according to claim 6, characterized in that: The length of the straight line segment is E, E=(ΦG-ΦD)*K; K is a coefficient, and the range of the coefficient is 1.2~1.4.

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