Motor damping assembly and range hood

Abstract

The utility model provides a kind of motor damping assembly and extractor hood, it is related to kitchen appliance technical field, including first mounting piece and multiple damping mechanism;First mounting piece is used to be connected with motor, and multiple damping mechanism is along the circumferential interval of first mounting piece Setting;Damping mechanism includes connecting piece, second mounting piece and sliding part;Sliding part is slidably connected with second mounting piece, and elastic member is equipped between the end of second mounting piece and sliding part;The one end of connecting piece is hinged with first mounting piece, and the other end of connecting piece is hinged with sliding part;When motor generates axial vibration, motor can drive connecting piece to rotate, to make sliding part compress elastic member.Motor damping assembly presents nonlinear relationship between restoring force F in motor axial direction and displacement x of motor in motor axial direction.Can provide good vibration isolation performance in wider frequency range, effectively expand vibration isolation bandwidth, realize wideband vibration isolation.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a motor vibration damping component and a range hood. Background Technology

[0002] As people's demands for kitchen comfort continue to increase, the vibration and noise issues of range hoods are receiving more and more attention.

[0003] During operation, the motor and impeller structure of a range hood will generate significant mechanical vibrations. These vibrations are transmitted to the entire structure through the bracket, causing resonance of structural components and noise radiation, which affects the user experience.

[0004] To reduce vibration transmission, linear springs and rubber damping structures are commonly used to isolate motors from vibration. However, because the stiffness of the damping structure remains constant throughout the entire operating range, its vibration isolation characteristics are only effective within a narrow frequency band. Under low-frequency and high-intensity excitation conditions, its vibration isolation performance decreases significantly, resulting in poor vibration isolation performance for range hoods. Utility Model Content

[0005] The purpose of this invention is to provide a motor vibration damping component to solve the technical problem that the vibration isolation characteristics of existing vibration damping structures are only effective within a narrow frequency band.

[0006] The motor vibration damping assembly provided by this utility model includes a first mounting component and multiple vibration damping mechanisms; The first mounting component is used to connect to the motor, and multiple vibration damping mechanisms are arranged at circumferential intervals along the first mounting component; The vibration damping mechanism includes a connector, a second mounting component, and a sliding component; the sliding component is slidably connected to the second mounting component, and an elastic element is provided between one end of the second mounting component and the sliding component; one end of the connector is hinged to the first mounting component, and the other end of the connector is hinged to the sliding component; When the motor generates axial vibration, it can drive the connecting parts to rotate, so that the sliding parts compress the elastic parts.

[0007] Furthermore, the slider is slidably mounted on the second mounting component.

[0008] Furthermore, the second mounting member is disposed outside the first mounting member, the end of the second mounting member away from the first mounting member is provided with a first mounting structure, and the end of the second mounting member facing the first mounting member is provided with a stop member; The elastic element is fitted onto the second mounting component, and the elastic element is located between the first mounting structure and the sliding component.

[0009] Furthermore, the stop is a flexible stop.

[0010] Furthermore, the second mounting component is a cylindrical guide rod.

[0011] Furthermore, the first mounting component has a first end face and a second end face at its two ends, respectively; The first end face is used to contact the motor, and the second end face is provided with a second mounting structure. One end of the connector is hinged to the second mounting structure.

[0012] Furthermore, the first mounting component is an annular plate.

[0013] Furthermore, multiple vibration damping mechanisms are evenly spaced along the circumference of the first mounting component.

[0014] The purpose of this utility model is also to provide a range hood, including a volute back plate, a motor, and a motor vibration damping component provided by this utility model; The motor is connected to the first mounting component, and the second mounting component is connected to the volute back plate.

[0015] Furthermore, a vibration damping pad is provided between the motor and the first mounting component.

[0016] The motor vibration damping assembly provided by this utility model includes a first mounting member and multiple damping mechanisms. The first mounting member is used to connect to the motor, and the multiple damping mechanisms are spaced apart circumferentially along the first mounting member. Each damping mechanism includes a connecting member, a second mounting member, and a sliding member. The sliding member is slidably connected to the second mounting member, and an elastic element is provided between one end of the second mounting member and the sliding member. One end of the connecting member is hinged to the first mounting member, and the other end of the connecting member is hinged to the sliding member. When the motor generates axial vibration, the motor can drive the connecting member to rotate, causing the sliding member to compress the elastic element. When the motor is stationary, the sliding member is located at the other end of the second mounting member. After the motor starts running, when the motor generates vibration along the motor axial direction, the motor vibration can drive the connecting member to rotate. The rotation of the connecting member can drive the sliding member to slide along the second mounting member, thereby causing the sliding member to compress the elastic element. The elastic element absorbs and dissipates energy to achieve a vibration damping effect. The restoring force F in the motor axial direction of the motor vibration damping assembly exhibits a non-linear relationship with the displacement x of the motor in the motor axial direction. The variable stiffness characteristics of nonlinear motor vibration damping components can adjust according to changes in system state, giving them better self-adaptability and making them suitable for complex and changing working environments. Under different operating conditions, such as variable speed or high load conditions, the motor vibration damping components can maintain good vibration isolation performance, improving the overall sound quality of the range hood. They can provide good vibration isolation performance over a wide frequency range, effectively expanding the vibration isolation bandwidth and achieving broadband vibration isolation. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an assembly drawing of the motor vibration damping assembly provided in this embodiment of the utility model; Figure 2 This is an assembly drawing of the second mounting component of the motor vibration damping assembly provided in this embodiment of the utility model; Figure 3 This is a cross-sectional view of the motor vibration damping assembly provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the structure of the first mounting component of the motor vibration damping assembly provided in this embodiment of the utility model; Figure 5 This is a simplified model schematic diagram of the motor vibration damping component provided in this embodiment of the utility model.

[0019] Icons: 1-First mounting component; 11-Second mounting structure; 2-Vibration damping mechanism; 21-Connector; 22-Second mounting component; 23-Elastic component; 24-Block; 25-First mounting structure; 3-Motor; 4-Vibration damping pad; 5-Vortex housing back plate; 6-Sliding component. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] This utility model provides a motor vibration damping component and a range hood. Several embodiments are given below to describe the motor vibration damping component and range hood provided by this utility model in detail.

[0022] The motor vibration damping component provided in this embodiment, such as Figures 1 to 5As shown, it includes a first mounting member 1 and multiple vibration damping mechanisms 2; the first mounting member 1 is used to connect with the motor 3, and the multiple vibration damping mechanisms 2 are arranged at intervals along the circumference of the first mounting member 1; the vibration damping mechanism 2 includes a connecting member 21, a second mounting member 22 and a sliding member 6; the sliding member 6 is slidably connected to the second mounting member 22, and an elastic member 23 is provided between one end of the second mounting member 22 and the sliding member 6; one end of the connecting member 21 is hinged to the first mounting member 1, and the other end of the connecting member 21 is hinged to the sliding member 6; when the motor 3 generates axial vibration, the motor 3 can drive the connecting member 21 to rotate, so that the sliding member 6 compresses the elastic member 23.

[0023] The first mounting component 1 is connected to the motor 3, thereby fixing the motor 3 onto the first mounting component 1.

[0024] The sliding member 6 is slidably connected to the second mounting member 22, and the sliding member 6 can slide along the extension direction of the second mounting member 22. The elastic member 23 is disposed between one end of the second mounting member 22 and the sliding member 6. When the motor 3 is stationary, the sliding member 6 is located at the other end of the second mounting member 22. After the motor 3 starts running, when the motor 3 vibrates along the axial direction of the motor 3, the vibration of the motor 3 can drive the connecting member 21 to rotate. The rotation of the connecting member 21 can drive the sliding member 6 to slide along the second mounting member 22, thereby causing the sliding member 6 to compress the elastic member 23. The elastic member 23 absorbs and dissipates energy to play a role in vibration damping.

[0025] Simplify the motor vibration damping components, such as Figure 5 As shown, triangle abc represents the state of motor 3 when it is stationary. Let the installation height ab of motor 3 be H0, and the length of the connecting rod ac be L0. Triangle deb represents the state of motor 3 during operation. Let the displacement ab of motor 3 along its axial direction be x. Then the compression length ec of the spring can be expressed as:

[0026] Since connector 21 is a rigid component, the restoring force F of the motor vibration damping assembly in the motor axial direction can be expressed as:

[0027] in, The angle between the connector 21 and the second mounting member 22.

[0028] As can be seen from the above formula, there is a nonlinear relationship between the restoring force F of the motor vibration damping component along the motor 3 axis and the displacement x of the motor 3 along the motor 3 axis. The nonlinear variable stiffness characteristics of the motor vibration damping component can be adjusted according to changes in system state, giving it better self-adaptability and making it suitable for complex and changing working environments. Under different operating conditions, such as variable speed or high load conditions, the motor vibration damping component can maintain good vibration isolation effect and improve the overall sound quality of the range hood. It can provide good vibration isolation performance over a wide frequency range, effectively expanding the vibration isolation bandwidth and achieving broadband vibration isolation.

[0029] Furthermore, the slider 6 is slidably mounted on the second mounting component 22.

[0030] The slider 6 is slidably sleeved on the second mounting member 22, so that the slider 6 can slide along the extension direction of the second mounting member 22.

[0031] In other alternative embodiments, the second mounting member 22 may also be configured as a slide rail, with the sliding member 6 slidably connected to the slide rail.

[0032] Furthermore, the second mounting member 22 is disposed outside the first mounting member 1, and the end of the second mounting member 22 away from the first mounting member 1 is provided with a first mounting structure 25, and the end of the second mounting member 22 facing the first mounting member 1 is provided with a stop member 24; the elastic member 23 is sleeved on the second mounting member 22, and the elastic member 23 is located between the first mounting structure 25 and the sliding member 6.

[0033] The second mounting member 22 is disposed outside the first mounting member 1, and the extending direction of the second mounting member 22 is parallel to the radial direction of the motor 3. Along the radial direction of the motor 3, the end of the second mounting member 22 away from the first mounting member 1 is provided with a first mounting structure 25, which is used to fix and connect with the volute back plate 5 so that the second mounting member 22 is mounted to the volute back plate 5. The second mounting member 22 extends toward the center of the volute back plate 5, and the end of the second mounting member 22 toward the first mounting member 1 is suspended.

[0034] The elastic element 23 is sleeved on the second mounting member 22, and the elastic element 23 is located between the first mounting structure 25 and the sliding member 6. When the sliding member 6 slides along the first mounting member 1, it can compress the elastic element 23.

[0035] Furthermore, the stop 24 is a resilient stop.

[0036] The outer contour of the elastic stop can be block-shaped, plate-shaped, or any other suitable form.

[0037] The stop 24 can prevent the slider 6 from sliding out of the second mounting part 22, and the elastic stop itself has a buffering performance, which can buffer the slider 6.

[0038] In this embodiment, the elastic stop is a rubber stop 24.

[0039] The elastic element 23 can be a spring or a columnar structure made of elastic material, etc. In this embodiment, the elastic element 23 is a compression spring. Although the compression spring is a linear spring, under the geometric action of the connecting member 21 and the second mounting member 22, the restoring force F of the motor vibration damping assembly in the motor 3 axis exhibits a nonlinear relationship. Similarly, the stiffness of the motor vibration damping assembly in the motor 3 axis is nonlinear.

[0040] Furthermore, the second mounting component 22 is a cylindrical guide rod.

[0041] The sliding member 6 slides smoothly along the cylindrical guide rod, and the cylindrical guide rod can guide the sliding of the sliding member 6.

[0042] Furthermore, the first mounting member 1 has a first end face and a second end face at its two ends respectively; the first end face is used to contact the motor 3, and the second end face is provided with a second mounting structure 11, and one end of the connecting member 21 is hinged to the second mounting structure 11.

[0043] Along the axial direction of the first mounting member 1, the two ends of the first mounting member 1 have a first end face and a second end face respectively. The motor 3 is in contact with the first end face and the motor 3 is fixed to the first mounting member 1 by bolts. The second end face is provided with a second mounting structure 11. One end of the connecting member 21 is hinged to the second mounting structure 11 by a pin. The connecting member 21 can rotate around the axis of the pin.

[0044] Furthermore, the first mounting component 1 is an annular plate. The annular plate fits the shape of the motor 3 quite well.

[0045] Furthermore, multiple vibration damping mechanisms 2 are evenly spaced along the circumference of the first mounting component 1.

[0046] The vibration damping structure is evenly spaced along the circumference of the first mounting part 1, thereby stably supporting the motor 3.

[0047] The number of vibration damping mechanisms 2 can be any suitable number, such as 2, 3, or 4.

[0048] The motor vibration damping component provided in this embodiment has a simple structure and strong controllability, and is a nonlinear vibration isolation mechanism that is easy to implement in engineering.

[0049] The range hood provided in this embodiment includes a volute back plate 5, a motor 3, and a motor vibration damping component provided in this embodiment; the motor 3 is connected to the first mounting component 1, and the second mounting component 22 is connected to the volute back plate 5.

[0050] The motor 3 and the first mounting part 1 can be fixedly connected or detachably connected, as long as the motor 3 and the first mounting part 1 can be fixed.

[0051] Furthermore, a vibration damping pad 4 is provided between the motor 3 and the first mounting component 1, which can play a vibration isolation role between the motor 3 and the first mounting component 1.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A motor vibration damping component, characterized in that, It includes a first mounting component (1) and multiple vibration damping mechanisms (2); The first mounting member (1) is used to connect to the motor (3), and a plurality of the vibration damping mechanisms (2) are arranged at circumferential intervals along the first mounting member (1); The vibration damping mechanism (2) includes a connector (21), a second mounting member (22), and a sliding member (6); the sliding member (6) is slidably connected to the second mounting member (22), and an elastic member (23) is provided between one end of the second mounting member (22) and the sliding member (6); one end of the connector (21) is hinged to the first mounting member (1), and the other end of the connector (21) is hinged to the sliding member (6); When the motor (3) generates axial vibration, the motor (3) can drive the connecting member (21) to rotate, so that the sliding member (6) compresses the elastic member (23).

2. The motor vibration damping assembly according to claim 1, characterized in that, The sliding member (6) is slidably sleeved on the second mounting member (22).

3. The motor vibration damping assembly according to claim 2, characterized in that, The second mounting member (22) is disposed outside the first mounting member (1), and the end of the second mounting member (22) away from the first mounting member (1) is provided with a first mounting structure (25), and the end of the second mounting member (22) facing the first mounting member (1) is provided with a stop (24); The elastic element (23) is sleeved on the second mounting element (22), and the elastic element (23) is located between the first mounting structure (25) and the sliding element (6).

4. The motor vibration damping assembly according to claim 3, characterized in that, The stop (24) is an elastic stop.

5. The motor vibration damping assembly according to claim 2, characterized in that, The second mounting component (22) is a cylindrical guide rod.

6. The motor vibration damping assembly of claim 1, wherein, The first mounting component (1) has a first end face and a second end face at its two ends, respectively; The first end face is used to contact the motor (3), and the second end face is provided with a second mounting structure (11). One end of the connector (21) is hinged to the second mounting structure (11).

7. The motor vibration damping assembly of claim 6, wherein, The first mounting component (1) is an annular plate.

8. The motor vibration damping assembly of claim 1, wherein, Multiple vibration damping mechanisms (2) are evenly spaced along the circumference of the first mounting member (1).

9. A range hood characterized by Includes a volute backplate (5), a motor (3), and a motor vibration damping assembly as described in any one of claims 1-8; The motor (3) is connected to the first mounting component (1), and the second mounting component (22) is connected to the volute back plate (5).

10. The range hood according to claim 9, characterized in that, A vibration damping pad (4) is provided between the motor (3) and the first mounting component (1).

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