CN219220838U

CN219220838U - Fan case and range hood

Info

Publication number: CN219220838U
Application number: CN202320242661.XU
Authority: CN
Inventors: 任富佳; 吴童; 郑桐福; 鲍明; 周海昕; 余国成
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-20
Anticipated expiration: 2033-02-17

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a fan case and a range hood, wherein the fan case comprises a case shell and a fan, the fan is detachably connected to the case shell and arranged in the case shell, the fan case also comprises at least one connecting component and a vibration reduction component, the connecting component comprises a mounting frame and a connecting piece, the mounting frame is connected to the case shell, and the connecting piece is detachably connected to the mounting frame and a wall; the vibration damping assembly comprises a first vibration damping mechanism and a second vibration damping mechanism, the first vibration damping mechanism and the second vibration damping mechanism are connected to the connecting assembly, the first vibration damping mechanism is used for damping vibration of the case shell along a first direction, the second vibration damping mechanism is used for damping vibration of the case shell along a second direction, and an included angle is formed between the first direction and the second direction. According to the fan case, the vibration reduction assembly can comprehensively reduce vibration in the working process of the case shell, and the falling risk caused by loosening of the connecting piece is avoided, so that the range hood has low noise and high reliability.

Description

Fan case and range hood

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a fan case and a range hood.

Background

The kitchen appliance is installed above kitchen range, and can suck the waste burnt by range and the fume harmful to human body and exhaust it out of the room. The structure of the range hood for exhausting the oil smoke is a power system, the existing range hood is generally provided with the power system at the bottom of a cabinet or inside the cabinet, a fan of the power system is close to a user, and noise transmission is obvious; in order to solve the above problems, some range hoods set a power system above a suspended ceiling in a kitchen, and a fan is far away from a user and can block a part of noise of the power system by using the suspended ceiling. The overhead power system is generally installed on a wall body at the top of a kitchen through screws, and adopts a centrifugal fan, so that when an impeller runs, the screws are loosened due to poor dynamic balance of the impeller, and the power system has a falling risk and influences the normal operation of the range hood.

Disclosure of Invention

The first object of the utility model is to provide a fan chassis, wherein a vibration reduction assembly can comprehensively reduce vibration of a chassis shell in a working process, and avoid falling risks caused by loosening of connecting pieces.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a fan machine case can install on the wall body, fan machine case includes chassis housing and fan, the fan can dismantle connect in chassis housing, and set up in the chassis housing, fan machine case still includes:

the connecting assembly comprises a mounting frame and a connecting piece, the mounting frame is connected to the chassis shell, and the connecting piece is detachably connected to the mounting frame and the wall;

the vibration damping assembly comprises a first vibration damping mechanism and a second vibration damping mechanism, the first vibration damping mechanism and the second vibration damping mechanism are connected to the connecting assembly, the first vibration damping mechanism is used for damping vibration of the case shell along a first direction, the second vibration damping mechanism is used for damping vibration of the case shell along a second direction, and an included angle is formed between the first direction and the second direction.

As a preferable structure of the utility model, the mounting frame is detachably connected to a side wall of the chassis housing, a top wall of the chassis housing abuts against the wall, and the connecting piece penetrates through the mounting frame to be detachably connected with the wall.

As a preferable structure of the utility model, the first vibration damping mechanism comprises a first elastic piece, and the first elastic piece is sleeved on the connecting piece.

As a preferable structure of the present utility model, the first vibration damping mechanism further includes a metal gasket, the metal gasket is sleeved on the connecting piece, and a side surface of the metal gasket abuts against the first elastic piece.

As a preferable structure of the present utility model, the connecting assembly further comprises a lock nut screwed to the connecting member, the lock nut being used for locking the connecting member and/or the first elastic member.

As a preferable structure of the present utility model, the second vibration damping mechanism includes a second elastic member, and one side of the second elastic member abuts against the mounting frame, and the other side abuts against the fan case.

As a preferable structure of the utility model, the mounting frame is a U-shaped frame, the U-shaped frame comprises a first mounting plate and a second mounting plate which are oppositely arranged, a connecting side plate is arranged between the first mounting plate and the second mounting plate, the connecting side plate is detachably connected with the case shell, and the connecting piece sequentially penetrates through the first mounting plate and the second mounting plate and is connected with the wall body.

As a preferable structure of the utility model, the vibration damping assembly further comprises a vibration damping sleeve, wherein the vibration damping sleeve is sleeved on the connecting piece and is arranged between the first mounting plate and the second mounting plate.

As a preferable structure of the present utility model, the second vibration damping mechanism further includes a connection flange, the connection flange is enclosed around the second elastic member, the second elastic member is abutted against the connection side plate, and the connection flange can wrap the connection side plate.

The second object of the utility model is to provide a range hood, which comprises the fan case, wherein the fan case has good vibration damping performance and reliable connection, and further ensures the normal operation of the range hood.

the utility model provides a range hood, including foretell fan machine case, fan machine case sets up in the top of room furred ceiling, just fan machine case detachable connection is in the top wall body.

The utility model has the beneficial effects that:

the fan case provided by the utility model comprises the mounting frame and the connecting piece, wherein the mounting frame is connected to the case shell, and the connecting piece is detachably connected to the mounting frame and the wall body to realize the connection of the fan case and the wall body; the first vibration reduction mechanism and the second vibration reduction mechanism are elastic elements and can bear the vibration of the case shell and inhibit and alleviate the vibration, so that the vibration is prevented from being transmitted to the connecting piece. The vibration of fan in the course of the work is multiple direction, and first damping mechanism can attenuate the vibration of machine case casing along first direction, and the vibration of second damping mechanism can attenuate the machine case casing along the second direction to reduce the vibration of fan machine case in the course of the work comprehensively, avoid the connecting piece not hard up, and then the risk of droing that causes.

According to the range hood provided by the utility model, the fan case dampens the vibration of the case shell along the longitudinal direction through the first damping mechanism, and the second damping mechanism dampens the vibration of the case shell along the transverse direction, so that the vibration in the working process of the fan case is comprehensively reduced, the vibration is prevented from being transmitted to the connecting piece, the falling risk caused by loosening of the connecting piece is prevented, and the normal working of the range hood is ensured. The fan machine case sets up in the top of room furred ceiling, and the fan machine case is farther from the user, and the room furred ceiling can be isolated to the noise of fan machine case course of working, reduces the influence of noise to the user, promotes the use impression for range hood has low noise and high reliability concurrently.

Drawings

Fig. 1 is a schematic structural diagram of a fan case according to a first embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic view of a vibration damping assembly according to a first embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a fan case according to a first embodiment of the present utility model;

FIG. 5 is a partially enlarged schematic illustration of portion B of FIG. 4;

FIG. 6 is a cross-sectional view of a vibration damping assembly according to a first embodiment of the present utility model;

FIG. 7 is a schematic view of a mounting frame according to a first embodiment of the present utility model;

FIG. 8 is a schematic diagram of a second vibration damping mechanism according to a first embodiment of the present utility model;

fig. 9 is a schematic structural diagram of a fan case according to a second embodiment of the present utility model;

fig. 10 is a schematic diagram of a fan case according to a second embodiment of the present utility model;

fig. 11 is a schematic structural view of a range hood according to a third embodiment of the present utility model;

fig. 12 is a schematic diagram illustrating the installation of a casing of a range hood according to the third embodiment of the present utility model.

In the figure:

1. a connection assembly; 11. a mounting frame; 111. a first mounting plate; 112. a second mounting plate; 113. connecting side plates; 114. a mounting hole; 12. a connecting piece; 13. a lock nut; 2. a vibration damping assembly; 21. a first vibration reduction mechanism; 211. a first elastic member; 212. a metal gasket; 22. a second vibration reduction mechanism; 221. a second elastic member; 222. connecting and flanging; 23. a vibration damping sleeve; 3. a chassis housing; 31. a sidewall; 32. a top wall;

100. suspended ceiling of room; 200. and (5) a top wall body.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1 to 8, a fan case is provided in an embodiment of the present utility model, where the fan case can be installed on a wall, and the wall may be a standing wall or a top wall. The fan case comprises a case shell 3 and a fan, wherein the fan is detachably connected to the case shell 3 and is arranged in the case shell 3. The fan chassis further comprises at least one connection assembly 1 and a vibration damping assembly 2. The coupling assembling 1 includes mounting bracket 11 and connecting piece 12, and mounting bracket 11 is connected on chassis housing 3, and connecting piece 12 can dismantle and connect in mounting bracket 11 and wall body, and connecting piece 12 can be the bolt, and a plurality of connecting pieces 12 can increase the connection reliability between mounting bracket 11 and the wall body. The vibration damping assembly 2 includes a first vibration damping mechanism 21 and a second vibration damping mechanism 22, where the first vibration damping mechanism 21 and the second vibration damping mechanism 22 are connected to the connection assembly 1, the first vibration damping mechanism 21 is used to damp vibration of the chassis housing 3 along a first direction, the second vibration damping mechanism 22 is used to damp vibration of the chassis housing 3 along a second direction, an included angle is formed between the first direction and the second direction, for convenience of explanation, a Z axis of a coordinate system shown in fig. 1 represents the first direction, an X axis represents the second direction, and an included angle is formed between the Z axis and the X axis, which is not limited in degrees of the included angle in this embodiment. The first damper mechanism 21 and the second damper mechanism 22 are elastic elements capable of receiving vibrations of the housing case 3 and suppressing and relaxing the vibrations, thereby avoiding transmission of the vibrations to the connection member 12. The fan adopts centrifugal fan, and the not good structural vibration that produces of impeller dynamic balance is multiple direction, and first damping mechanism 21 can attenuate the vibration of machine case casing 3 along first direction, and second damping mechanism 22 can attenuate the vibration of machine case casing 3 along the second direction to reduce the vibration of fan machine case in the course of the work comprehensively, avoid connecting piece 12 not hard up, and then the risk of droing that causes. The first direction and the second direction are determined according to the relative installation position between the casing 3 and the wall, in the first embodiment, the casing 3 is square, the first direction and the second direction are longitudinal and transverse, respectively, the first vibration damping mechanism 21 dampens the longitudinal vibration of the casing 3, and the second vibration damping mechanism 22 dampens the transverse vibration of the casing 3.

In the first embodiment, the mounting frame 11 is detachably connected to the side wall 31 of the chassis housing 3 and is located at the top of the side wall 31, and the top wall 32 of the chassis housing 3 abuts against the wall; the wall body is the top wall for chassis housing 3 is far away from the user, reduces the influence of noise, promotes user's use impression. The connecting assemblies 1 are arranged in 4 numbers and are respectively positioned at four corners of the case shell 3, so that the case shell 3 is reliably installed. The connecting piece 12 passes through the mounting frame 11 to fix the chassis housing 3 on the top wall, and the connecting piece 12 can be detached to connect the wall, so that the mounting mode is convenient, and the mounting of the connecting piece 12 is realized from bottom to top from the periphery of the chassis housing 3. The first vibration damping mechanism 21 is arranged on the mounting frame 11 to damp the longitudinal vibration of the chassis housing 3, and the second vibration damping mechanism 22 is arranged between the mounting frame 11 and the chassis housing 3 to damp the transverse vibration of the chassis housing 3.

Further, the first vibration damping mechanism 21 includes a first elastic member 211, and the first elastic member 211 is sleeved on the connecting member 12. The first elastic member 211 has the advantages of good stability, low noise, good vibration isolation effect, long service life and the like, is suitable for vibration reduction in a single direction, and can weaken vibration of the chassis housing 3 in the longitudinal direction. The first elastic member 211 may be any one of various structures such as a compression spring, a rubber spring, a composite spring, and an air bag spring; as shown in fig. 2, the first elastic member 211 is a compression spring and is sleeved on the connecting member 12; as shown in fig. 3, the first elastic member 211 may also adopt a vibration-damping rubber pad, which is sleeved on the connecting member 12, and has an i-shaped structure, so that the contact area of two ends is increased, and the vibration-damping performance is better.

Preferably, the first vibration reduction mechanism 21 further includes a metal gasket 212, as shown in fig. 2, the metal gasket 212 is sleeved on the connecting piece 12, and one side surface of the metal gasket 212 abuts against the first elastic piece 211. The metal gasket 212 can increase the contact area with the first elastic member 211, thereby achieving a better anti-loosening effect. Further, the connection assembly 1 further comprises a lock nut 13, and the lock nut 13 is screwed to the connection member 12. The lock nut 13 is conveniently arranged from bottom to top below the mounting frame 11; the lock nut 13 is sleeved on the connecting piece 12 and is abutted against the mounting frame 11 or the metal gasket 212, so that the connecting piece 12 is prevented from being loose, the reliability of the connecting piece 12 is improved, the connecting piece 12 is prevented from rotating, and the connecting piece 12 is further prevented from being loose.

Specifically, the mounting positions of the structural members of the first vibration reduction mechanism 21 may be different, as shown in fig. 4 and 5, the first elastic member 211 is disposed above the mounting frame 11, the metal gasket 212 is disposed between the first elastic member 211 and the wall, and the lock nut 13 abuts against the lower side of the mounting frame 11; as shown in fig. 6, the first elastic member 211 may be disposed below the mounting frame 11, the metal gasket 212 abuts against one end of the first elastic member 211 away from the mounting frame 11, and finally the lock nut 13 abuts against the metal gasket 212 to prevent loosening. Both of these connection modes can realize a vibration damping effect on the housing case 3 in the longitudinal direction.

Further, the second vibration damping mechanism 22 includes a second elastic member 221, as shown in fig. 5, one side of the second elastic member 221 abuts against the mounting frame 11, and the other side abuts against the fan case. The second elastic member 221 is a sheet-like elastic member made of vibration damping rubber, and is capable of reducing vibration of the casing 3 in the lateral direction, and preventing the lateral vibration from being transmitted to the connecting member 12.

In the first embodiment, the mounting frame 11 is a U-shaped frame, and the U-shaped frame includes a first mounting plate 111 and a second mounting plate 112 that are disposed opposite to each other, as shown in fig. 7, a connecting side plate 113 is disposed between the first mounting plate 111 and the second mounting plate 112, and the frame structure is relatively stable, so that the mounting frame 11 is not easy to deform. The connection side plate 113 is detachably connected to the chassis housing 3, so as to connect the mounting frame 11 with the chassis housing 3. The connection side plate 113 is provided with a connection hole for a fastener to pass through to connect with the casing 3. The connecting piece 12 sequentially passes through the first mounting plate 111 and the second mounting plate 112 and is connected with the wall body, so that the connection between the mounting frame 11 and the wall body is realized.

Preferably, the second vibration reduction mechanism 22 further includes a connecting flange 222, as shown in fig. 8, and the connecting flange 222 is disposed around the second elastic member 221. The second elastic piece 221 is attached to the connecting side plate 113, and the connecting flange 222 can wrap the connecting side plate 113, so that in the installation of the installation frame 11, the connecting flange 222 forms a wrapping for the installation frame 11, and the installation frame 11 is prevented from falling off, so that dislocation between the second elastic piece 221 is avoided.

Preferably, the vibration damping assembly 2 further includes a vibration damping sleeve 23, as shown in fig. 2, wherein the vibration damping sleeve 23 is sleeved on the connecting member 12 and disposed between the first mounting plate 111 and the second mounting plate 112. The damping sleeve 23 is made of damping rubber, and is capable of damping relative vibration between the link 12 and the mount 11. Specifically, the connecting piece 12 includes two mounting holes 114, and is respectively disposed on the first mounting plate 111 and the second mounting plate 112, and the damping sleeve 23 is sleeved on the connecting piece 12 and extends into the two mounting holes 114, so that rigid contact between the connecting piece 12 and the mounting frame 11 is avoided, and damping and buffering are realized.

Example two

The second embodiment provides a fan case, as shown in fig. 9 and 10, which has the same connection assembly 1, vibration damping assembly 2 and case housing 3 as in the first embodiment. Wherein, the first vibration damping mechanism 21 of the vibration damping assembly 2 is used for damping the vibration of the case housing 3 along the first direction, and the second vibration damping mechanism 22 is used for damping the vibration of the case housing 3 along the second direction; the second vibration damping mechanism 22 may employ vibration damping shims respectively attached to and abutting against the mounting frame 11 and the fan housing, thereby realizing the damping of transverse vibrations. The second embodiment is different in the positional relationship between the connection assembly 1 and the chassis housing 3.

In the second embodiment, the mounting frame 11 is detachably connected to the side wall 31 of the chassis housing 3 and is located at the bottom of the side wall 31, and the top wall 32 of the chassis housing 3 abuts against the wall, so the connecting member 12 needs to have a sufficient length, and extends from the bottom to the top of the side wall 31 and is screwed to the wall, as shown in fig. 9 and 10. In this positional relationship, in order to achieve the effect of longitudinal vibration reduction, the first elastic member 211 is disposed below the mounting frame 11, the metal washer 212 abuts against one end of the first elastic member 211 away from the mounting frame 11 to increase the acting area of the first elastic member 211, and finally the lock nut 13 abuts against the metal washer 212 to prevent loosening.

Example III

In a third embodiment of the present utility model, as shown in fig. 11, the range hood includes the fan case, which is disposed above the suspended ceiling 100, and is detachably connected to the top wall 200. The fan case dampens the vibration of the case housing 3 along the longitudinal direction through the first damping mechanism 21, and the second damping mechanism 22 dampens the vibration of the case housing 3 along the transverse direction, thereby comprehensively reducing the vibration in the working process of the fan case, avoiding transmitting the vibration to the connecting piece 12, preventing the falling risk caused by looseness of the connecting piece 12, and ensuring the normal work of the range hood. The fan machine case sets up in the top of room furred ceiling 100, and fan machine case is farther from the user, and room furred ceiling 100 can be isolated the noise of fan machine case course of working, reduces the influence of noise to the user, promotes the use impression for range hood has low noise and high reliability concurrently.

The range hood of the embodiment of the utility model can realize effective vibration reduction and convenient disassembly of a fan case, and as shown in fig. 12, the case housing 3 of the range hood comprises the following mounting steps on a top wall 200:

1. from one side of the cabinet housing 3, the connection side plate 113 and the second elastic member 221 are penetrated by fasteners and fixed to the side wall 31 of the cabinet housing 3;

2. from above the chassis housing 3, the metal gasket 212 and the first elastic member 211 are sequentially placed between the second mounting plate 112 and the top wall 200 from top to bottom;

3. sleeving a vibration damping sleeve 23 from below the chassis shell 3 through the connecting piece 12, sequentially passing through the first mounting plate 111 and the second mounting plate 112 from bottom to top, and enabling the vibration damping sleeve 23 to be arranged between the first mounting plate 111 and the second mounting plate 112;

4. continuing to rotate and push the connecting piece 12 upwards until the connecting piece 12 passes through the first elastic piece 211 and the metal gasket 212 and is connected to the top wall 200 in a threaded manner;

5. from below the case housing 3, the locking nut 13 is sleeved on the connecting piece 12 until the locking nut 13 abuts against the first mounting plate 111;

6. repeating the steps until all the connecting components and the vibration reduction components around the chassis shell are installed.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a fan machine case can install on the wall body, fan machine case includes chassis housing (3) and fan, the fan can dismantle connect in chassis housing (3), and set up in chassis housing (3), its characterized in that, fan machine case still includes:

the connecting assembly (1) comprises a mounting frame (11) and a connecting piece (12), wherein the mounting frame (11) is connected to the chassis shell (3), and the connecting piece (12) is detachably connected to the mounting frame (11) and the wall;

damping subassembly (2), damping subassembly (2) include first damping mechanism (21) and second damping mechanism (22), first damping mechanism (21) with second damping mechanism (22) connect in coupling assembling (1), first damping mechanism (21) are used for the attenuation chassis housing (3) are along the vibration of first direction, second damping mechanism (22) are used for the attenuation chassis housing (3) are along the vibration of second direction, first direction with have the contained angle between the second direction.

2. Fan chassis according to claim 1, characterized in that the mounting frame (11) is detachably connected to the side wall (31) of the chassis housing (3), the top wall (32) of the chassis housing (3) abuts the wall, and the connecting piece (12) passes through the mounting frame (11) to be detachably connected to the wall.

3. The fan chassis according to claim 1, wherein the first vibration reduction mechanism (21) comprises a first elastic member (211), and the first elastic member (211) is sleeved on the connecting member (12).

4. A fan chassis according to claim 3, wherein the first vibration reduction mechanism (21) further comprises a metal gasket (212), the metal gasket (212) is sleeved on the connecting piece (12), and a side surface of the metal gasket (212) abuts against the first elastic piece (211).

5. A fan chassis according to claim 3, wherein the connection assembly (1) further comprises a lock nut (13), the lock nut (13) being screwed to the connection member (12), the lock nut (13) being adapted to lock the connection member (12) and/or the first elastic member (211).

6. The fan chassis according to claim 1, wherein the second vibration reduction mechanism (22) comprises a second elastic member (221), and one side of the second elastic member (221) is abutted against the mounting frame (11) in a fitting manner, and the other side is abutted against the fan chassis in a fitting manner.

7. The fan case according to claim 6, wherein the mounting frame (11) is a U-shaped frame, the U-shaped frame includes a first mounting plate (111) and a second mounting plate (112) that are disposed opposite to each other, a connection side plate (113) is disposed between the first mounting plate (111) and the second mounting plate (112), the connection side plate (113) is detachably connected to the case housing (3), and the connection member (12) sequentially passes through the first mounting plate (111) and the second mounting plate (112) and is connected to the wall.

8. The fan chassis according to claim 7, wherein the vibration damping assembly (2) further comprises a vibration damping sleeve (23), the vibration damping sleeve (23) is sleeved on the connecting piece (12) and is arranged between the first mounting plate (111) and the second mounting plate (112).

9. The fan case according to claim 7, wherein the second vibration reduction mechanism (22) further includes a connection flange (222), the connection flange (222) is disposed around the second elastic member (221), the second elastic member (221) is abutted against the connection side plate (113), and the connection flange (222) can wrap around the connection side plate (113).

10. A range hood, comprising a fan housing according to any one of claims 1-9, said fan housing being arranged above a room ceiling (100) and said fan housing being detachably connected to a top wall (200).