Detachable fan assembly of air curtain range hood

Abstract

The utility model discloses a detachable fan assembly of an air curtain range hood, which comprises a range hood shell, an oil smoke cavity and an air curtain cavity are arranged in the range hood shell, and the oil smoke cavity and the air curtain cavity are arranged at an interval; the oil fume cavity is communicated with an oil fume suction opening in the range hood shell; the air curtain cavity is communicated with an air curtain opening and an air inlet in the range hood shell; the top of the range hood shell is further provided with a mounting opening communicating with the air curtain cavity. A first connecting part is arranged on the inner wall of the air curtain cavity; the fan assembly comprises a mounting seat and a fan, and the fan is mounted in the air curtain cavity through the mounting opening after being connected with the mounting seat; a second connecting part is arranged on the mounting seat, and the second connecting part is detachably connected with the first connecting part. When the fan assembly needs to be disassembled and assembled, an operator only needs to stretch into the air curtain cavity from the mounting opening in the top, detach the first connecting part from the second connecting part and take out the fan assembly, the structure of the whole range hood does not need to be disassembled and recombined on a large scale, the complexity and difficulty of operation are reduced, and later regular maintenance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially, relates to a detachable fan assembly of air curtain range hood. BACKGROUND

[0002] In the existing range hood, in order to guarantee that fan assembly can form air curtain effectively after installation, fan assembly usually needs to be sealed in the range hood, because fan assembly needs to be maintained or cleaned regularly after long-term use, when needing to maintain or clean fan assembly, usually need to carry out large-scale disassembly to the range hood structure, can take out fan assembly, and it is inconvenient to disassemble, leading to the inconvenience of later maintenance or cleaning. SUMMARY

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides a detachable fan assembly of air curtain range hood, the independent air curtain cavity is arranged in range hood shell to install fan assembly, and fan assembly is detachably installed, so that fan assembly is more convenient to disassemble.

[0004] The utility model discloses a detachable fan assembly of air curtain range hood, which comprises:

[0005] A detachable fan assembly of air curtain range hood, comprising:

[0006] A range hood shell is provided with an oil fume cavity and an air curtain cavity inside, and the oil fume cavity and the air curtain cavity are arranged at intervals.

[0007] A fan assembly is provided with a mounting seat and a fan, the mounting seat is mounted in the air curtain cavity through the mounting port, the fan is mounted on the mounting seat and is used to form negative pressure in the air curtain cavity to form an air curtain at the air curtain port.

[0008] Further, the air curtain cavity further has a wind guide cavity section, the mounting port is communicated with the wind guide cavity section, and the fan assembly is mounted in the wind guide cavity section through the mounting port.

[0009] Further, at least one of the outer periphery of the clamping block or the inner wall of the clamping groove is provided with a guide surface for guiding the clamping block to be clamped into the clamping groove.

[0010] Further, the guide surface is an arc surface.

[0011] Further, the mounting seat is provided with a mounting space, and the fan is detachably mounted in the mounting space; the fan comprises a connecting shaft and a plurality of blades, the plurality of blades are distributed along the periphery of the connecting shaft and connected to the connecting shaft, and the two ends of the connecting shaft are detachably connected to the inner wall of the mounting space.

[0012] Further, the mounting seat comprises two mounting plates, the mounting space is formed between the two mounting plates, and the two mounting plates are detachably connected to the inner wall of the air guiding cavity; the two ends of the connecting shaft are rotatably connected to the two mounting plates.

[0013] Further, the two mounting plates are provided with penetrating holes, and the two ends of the connecting shaft are rotatably arranged in the penetrating holes.

[0014] Further, a limiting block is further arranged, the limiting block is sleeved on one end of the connecting shaft and abuts against the periphery of one of the penetrating holes, so as to lock the connecting shaft.

[0015] Further, a cover plate is further arranged, the cover plate is detachably connected to the end wall of the mounting opening, so as to seal or open the mounting opening.

[0016] Further, the end wall of the mounting opening is provided with a connecting edge, and the connecting edge is used for abutting against the cover plate after the cover plate is sealed on the mounting opening.

[0017] In summary, the detachable fan assembly of the air curtain range hood has the following technical effects:

[0018] In specific use, since the fan is detachably connected to the first connecting part in the air curtain cavity through the second connecting part on the mounting seat, when the fan assembly needs to be disassembled, the first connecting part and the second connecting part are only needed to be separated, and then the operator can take out the fan assembly through the mounting opening at the top. Since the air curtain cavity and the oil smoke cavity are independently arranged, the whole range hood does not need to be disassembled and reassembled in a large scale during the disassembly process, the influence on the stability of the whole range hood is small, the complexity and difficulty of the operation are reduced, and the fan assembly is convenient for regular maintenance.

[0019] In addition, since the installation opening is arranged at the top of the range hood shell, a direct and open operation space is provided for the maintenance personnel, without the need to perform complex operations in a narrow space inside the range hood as in other positions, the arm and tool can be freely stretched, the fan assembly is convenient to take out or put into the installation opening, the operation difficulty is greatly reduced, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is another perspective view of the utility model;

[0022] Figure 3 It is a structural sectional view of the utility model;

[0023] Figure 4 It is a structural schematic view of the fan assembly in the utility model;

[0024] Figure 5 It is a structural exploded view of the fan assembly in the utility model.

[0025] Among them, the meaning of the reference signs is as follows:

[0026] 10, range hood shell; 11, air curtain cavity; 12, oil fume suction opening; 13, air curtain opening; 14, air outlet; 15, cover plate; 16, connecting edge; 20, fan assembly; 21, fan; 221, connecting shaft; 222, blade; 22, mounting seat; 221, mounting plate; 222, mounting interval; 2211, through hole; 23, limiting block. DETAILED DESCRIPTION

[0027] In order to better understand and implement, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0028] In the description of the utility model, it should be explained that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0030] Referring to Figures 1 to 5 The utility model discloses a detachable fan assembly of wind curtain range hood, including range hood shell 10 and fan assembly 20, be equipped with oil fume chamber and wind curtain chamber 11 in range hood shell 10, and oil fume chamber and wind curtain chamber 11 interval arrangement, range hood shell 10 has the oil fume suction port 12, air inlet and wind curtain mouth 13, and oil fume chamber and oil fume suction port 12 corresponding intercommunication, wind curtain chamber 11 and wind curtain mouth 13 and air inlet intercommunication, range hood shell 10's top still has the installation mouth, and installation mouth and wind curtain chamber 11 lead through, the inner wall of wind curtain chamber 11 is equipped with first connecting portion,

[0031] In addition, fan assembly 20 includes mounting seat 22 and fan 21, and fan 21 is installed on mounting seat 22, then mounting seat 22 is installed in wind curtain chamber 11 through installation mouth, and negative pressure is formed in wind curtain chamber 11 by fan 21 to make wind curtain mouth 13 form wind curtain, and second connecting portion is equipped on mounting seat 22, and second connecting portion is detachably connected with first connecting portion, and locking mounting seat 22 after being connected with first connecting portion.

[0032] On the basis of the above structure, during assembly, the oil fume chamber and the wind curtain chamber 11 can be integrally formed inside the range hood shell 10 or separated by a partition plate inside the range hood shell 10, so that the range hood shell 10 is separated into the oil fume chamber and the wind curtain chamber 11. The oil fume extractor fan 21 in the oil fume chamber generates negative pressure to suck the oil fume generated during cooking from the oil fume suction port 12, and the wind curtain chamber 11 is used to install the fan assembly 20 to generate negative pressure through the fan assembly 20 to form a wind curtain to block the spread of oil fume.

[0033] During assembly, the second connecting portion on the mounting seat 22 is detachably connected with the first connecting portion inside the wind curtain chamber 11 after the fan 21 is connected with the mounting seat 22, so that the mounting seat 22 can be disassembled at any time, which is convenient for subsequent maintenance or cleaning of the fan assembly 20.

[0034] Specifically, since the fan 21 is detachably connected with the first connecting part in the air curtain cavity 11 through the second connecting part on the mounting seat 22, when the fan assembly 20 needs to be disassembled, the first connecting part is only needed to be separated from the second connecting part, and then the operator takes out the fan assembly 20 through the mounting opening at the top. Since the air curtain cavity 11 and the oil fume cavity are independently arranged, the whole oil fume exhauster does not need to be disassembled and reassembled in a large scale during the disassembly process, the influence on the stability of the whole structure of the oil fume exhauster is small, the complexity and difficulty of the operation are reduced, and the fan assembly 20 is convenient for regular maintenance.

[0035] In addition, since the mounting opening is arranged at the top of the oil fume exhauster shell 10, the operator is provided with a direct and open operation space, and does not need to perform complex operation in the narrow space inside the oil fume exhauster as the mounting opening is arranged at other positions. The arm and the tool can be freely stretched, the fan assembly 20 is convenient to take out or put into the mounting opening, the operation difficulty is greatly reduced, and the maintenance efficiency is improved.

[0036] More specifically, since the oil fume cavity and the air curtain cavity 11 are spaced from each other, the airflow in the two cavities does not interfere with each other, the oil fume can be more smoothly sucked into the oil fume cavity during the rising process, and the oil fume will not be dispersed or changed in direction due to the airflow of the air curtain cavity 11, thereby improving the collection efficiency of the oil fume and better maintaining the freshness of the air in the kitchen.

[0037] It should be noted that the first connecting part can be a clamping groove, a limiting groove or a clamping opening formed in the air curtain cavity 11, and the second connecting part can be a clamping block, a clamping strip or a clamping hook arranged on the mounting seat 22. When assembled, the mounting seat 22 is clamped into the clamping groove (i.e. the first connecting part) through the clamping block (i.e. the second connecting part), so that the first connecting part and the second connecting part are clamped and connected, and the first connecting part and the second connecting part are detachably connected. Of course, the first connecting part can be a clamping block, a clamping strip or a clamping hook protruding from the inner wall of the air curtain cavity 11, and the second connecting part can be a clamping groove, a limiting groove or a clamping opening arranged on the mounting seat 22. The same effect is achieved.

[0038] In addition, in addition to the above clamping connection mode, the first connecting part and the second connecting part can also be magnetic materials (such as two magnetically attracted magnets) arranged on the inner wall of the air curtain cavity 11 and the mounting seat 22 respectively. When the mounting seat 22 and the inner wall of the air curtain cavity 11 are attracted together by magnetic force, the two are automatically attracted together when they are close, and the connection is achieved. When disassembled, a certain external force is applied to overcome the magnetic force, and the two are separated. The disassembly and assembly are very convenient, and no tools are needed.

[0039] Of course, the first connecting part and the second connecting part can also be structures such as pin holes or threaded holes provided on the inner wall of the air curtain cavity 11 and the mounting seat 22 respectively, and during assembly, the pin or screw is sequentially inserted into the pin hole or threaded hole, so that the first connecting part and the second connecting part can be detachably connected.

[0040] Further, the air curtain cavity 11 also has an air guide cavity section, the mounting opening is in communication with the air guide cavity section, the fan assembly 20 is mounted on the air guide cavity section through the mounting opening, the first connecting part is a clamping groove provided on the inner wall of the air guide cavity section, and the second connecting part is a clamping block provided on the mounting seat 22, the clamping block is clamped into the clamping groove and abuts against the inner wall of the clamping groove.

[0041] Specifically, the first connecting part in the embodiment is a clamping groove arranged inside the air guide cavity section, and the second connecting part is a clamping block arranged on the mounting seat 22, and during assembly, the clamping block is only needed to be clamped into the clamping groove, so that the mounting seat 22 is clamped and connected with the air guide cavity section, and detachable connection is realized. Compared with other connection modes, the clamping connection does not need complex tools and cumbersome installation steps, and only needs to align the clamping block with the clamping groove, and press or push gently, so that the installation is completed, and the installation time is greatly saved. Similarly, during disassembly, only the mounting seat 22 needs to be pried or pulled out in the reverse direction, so that the fan assembly 20 can be separated from the air curtain cavity 11, and the operation is simple and convenient.

[0042] More specifically, since the flow of air in a large cavity is relatively complex and is easily disturbed by various factors, such as irregular shape of the cavity, internal obstacles and the like, the air flow is disturbed, and the stability and uniformity of the air curtain are affected. Therefore, the embodiment is provided with an independent air guide cavity section in the air curtain cavity 11, when the fan assembly 20 is installed in the independent air guide cavity section, various interference factors that may exist in the large air curtain cavity 11 are avoided, and the situation that the air curtain fluctuates or is not uniform is avoided, so that the air flow is more likely to flow along the predetermined path after entering the air guide cavity section from the air inlet, and is discharged at the air curtain opening 13. External interference air flow cannot enter, so as to ensure the stability and uniformity of the air curtain, and enhance the blocking effect of the air curtain on the oil fume.

[0043] In addition, when the fan 21 operates at high speed, it may generate relatively large noise, and the existence of the air guide cavity section can increase the resistance of sound propagation, and limit part of the noise in the cavity, thereby reducing the overall operation noise of the air curtain machine, and creating a quieter use environment for the user.

[0044] It should be noted that the air guide cavity section in the embodiment can be formed by arranging a cover or a baffle structure in the air curtain cavity 11, and the cover or the baffle is arranged in the air curtain cavity 11 to separate the air curtain cavity 11 into the air guide cavity section.

[0045] Further, the guiding surface is arranged on at least one of the outer periphery of the clamping block or the inner wall of the clamping groove, so as to form a guide track on the outer periphery of the clamping block or the inner wall of the clamping groove through the guiding surface, so that the clamping block can be smoothly slid along the guiding surface to the clamping groove. For the installation of the fan assembly 20 of the smoke exhaustor, even in the case of limited space or blocked view, the guiding surface can help the maintenance personnel or the user to easily align the clamping block with the clamping groove, thereby improving the installation efficiency.

[0046] Specifically, the guiding surface can be an arc surface or an inclined surface formed on the clamping block. When the guiding surface is an inclined surface, the inclined surface can provide a gradually changing guide path, so that when the clamping block approaches the clamping groove, the inclined surface can guide the clamping block to slowly adjust the position and smoothly enter the clamping groove along the inclined direction of the inclined surface. When the guiding surface is an arc surface, the arc guiding surface can provide a continuous and smooth transition, so that when the clamping block approaches the clamping groove, the arc surface can naturally slide the clamping block into the clamping groove along the arc track.

[0047] It should be noted that the specific guiding surface can be arranged only on the outer periphery of the clamping block or the inner wall of the clamping groove, or the guiding surface can be arranged on the outer periphery of the clamping block and the inner wall of the clamping groove respectively. The specific arrangement can be made according to actual needs.

[0048] As a preferred, the guiding surface in the embodiment is an arc surface. Compared with the inclined surface guiding surface, the shape of the arc surface can guide the clamping block to enter the clamping groove in a wider angle range. For example, when the clamping block approaches the clamping groove from an angle slightly deviating from the correct direction, the arc surface can automatically adjust the position of the clamping block through its curved shape, so that the clamping block can smoothly enter the clamping groove, thereby increasing the flexibility of clamping.

[0049] Further, the installation seat 22 has an installation interval 222, and the fan 21 is detachably installed in the installation interval 222. The fan 21 includes a connecting shaft 221 and a plurality of blades 222. The plurality of blades 222 are spaced apart along the periphery of the connecting shaft 221 and are connected with the connecting shaft 221. The two ends of the connecting shaft 221 are respectively detachably connected with the inner walls of the installation interval 222.

[0050] Specifically, by arranging the installation interval 222 inside the installation seat 22, a specific installation position is provided for the fan 21. After the two ends of the connecting shaft 221 are respectively connected with the two inner walls of the installation interval 222, the fan 21 is more stably connected with the installation seat 22, thereby enhancing the stability of the fan 21 during operation.

[0051] It should be noted that the installation interval 222 can be integrally formed on the installation seat 22, or be enclosed by a plurality of plate segments.

[0052] Further, the mounting base 22 comprises two mounting plates 221, the two mounting plates 221 are spaced apart to form a mounting space 222, and the two mounting plates 221 are respectively detachably connected with the inner wall of the air guide cavity section. The two ends of the connecting shaft 221 are respectively rotatably connected with the two mounting plates 221.

[0053] Specifically, compared with the mounting space 222 integrally formed on the mounting base 22, in the embodiment, the mounting space 222 is formed by the relative and spaced arrangement of the two mounting plates 221, and the mounting space 222 formed by the spaced arrangement of the two mounting plates 221 is more flexible in size adjustment. For different models and different sizes of the fan assembly 20, only the spacing distance between the two mounting plates 221 needs to be changed to achieve the adaptation, so that the mounting base 22 can be suitable for the installation of the fan 21 of different sizes, and the application range is wider.

[0054] It should be noted that the two mounting plates 221 can be detachably connected with the inner wall of the air guide cavity section through a connecting piece (such as a screw or a bolt), or can be detachably connected with the air guide cavity section through a clamping connection, so as to further reinforce the connection between the mounting base 22 and the air guide cavity section, and make the mounting base 22 more stable after installation.

[0055] More specifically, the two mounting plates 221 are each provided with a penetrating hole 2211, so that the two ends of the connecting shaft 221 can be rotatably penetrated into the penetrating hole 2211.

[0056] Further, a limiting block 23 is sleeved on one end of the connecting shaft 221 and abuts against the periphery of one of the penetrating holes 2211 to lock the connecting shaft 221.

[0057] Specifically, in use, the connecting shaft 221 needs to be connected with the power output end of the motor or other driving member, so that it can rotate. When assembling, if there is no locking structure after the other end of the connecting shaft 221 is penetrated into the penetrating hole 2211, the connecting shaft 221 may be separated from the penetrating hole 2211 or loose during rotation, resulting in a relatively large noise during rotation. Therefore, in the embodiment, the limiting block 23 is penetrated into the end of the connecting shaft 221 away from the driving member, so that the limiting block 23 can always abut against the outer periphery of the penetrating hole 2211 to avoid the end of the connecting shaft 221 away from the driving member from being separated from the penetrating hole 2211 or loose, so that the structure is more stable and the probability of noise generation is indirectly reduced.

[0058] In addition, the utility model further includes cover plate 15, when assembling, the end wall of installation port is detachably connected with cover plate 15, specifically cover plate 15 can be detachably connected with the end wall of installation port through connecting piece (such as screw or screw etc.), or through setting the structure such as snap hook or clamping strip on cover plate 15, and setting the structure such as card hole or card slot in the end wall of installation port correspondingly, to make cover plate 15 and installation port detachably connected, when needing to disassemble and assemble fan assembly 20, remove cover plate 15, open installation port and take out fan assembly 20, after overhauling, cover plate 15 is sealed in installation port again, convenient to disassemble and assemble, convenient for later maintenance.

[0059] More specifically, the end wall of installation port is provided with connecting edge 16, when assembling, cover plate 15 seals installation port, because installation port end wall is provided with connecting edge 16, so that connecting edge 16 can abut against the bottom of cover plate 15, to support cover plate 15, so that cover plate 15 is more stable after sealing installation port, so that cover plate 15 is not easy to shake due to the vibration of fan assembly 20 in the wind curtain cavity 11 when running, to reduce the probability of noise due to cover plate 15 shaking.

[0060] It should be noted that after cover plate 15 and connecting edge 16 abut, cover plate 15 can also be detachably connected with connecting edge 16 through connecting piece or clamping connection, so that cover plate 15 is more stable after installation.

[0061] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above-mentioned embodiment, and also includes the technical scheme composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A detachable fan assembly for an air curtain range hood, characterized in that, include: A range hood housing includes a fume chamber and an air curtain chamber, which are spaced apart. The housing has a fume inlet, an air inlet, and an air curtain outlet. The fume chamber is connected to the fume inlet. The air curtain chamber is connected to both the air curtain outlet and the air inlet. The top of the housing has a mounting opening that communicates with the air curtain chamber. The inner wall of the air curtain chamber has a first connecting portion. A fan assembly includes a mounting base and a fan. The mounting base is installed in the air curtain cavity through the mounting port. The fan is installed on the mounting base and is used to create a negative pressure in the air curtain cavity to form an air curtain at the air curtain port. The mounting base is provided with a second connecting part, which is detachably connected to the first connecting part and is used to lock the mounting base after being connected to the first connecting part.

2. The detachable fan assembly of the air curtain range hood as described in claim 1, characterized in that, The air curtain cavity also has an air guide cavity section, and the mounting port is connected to the air guide cavity section. The fan assembly is installed in the air guide cavity section through the mounting port. The first connecting part is a snap-fit ​​groove provided on the inner wall of the air guide cavity section, and the second connecting part is a snap-fit ​​block provided on the mounting base. The snap-fit ​​block snaps into the snap-fit ​​groove and abuts against the inner wall of the snap-fit ​​groove.

3. The detachable fan assembly of the air curtain range hood as described in claim 2, characterized in that, The outer periphery of the snap-fit ​​block or the inner wall of the snap-fit ​​groove has a guide surface, which is used to guide the snap-fit ​​block to snap into the snap-fit ​​groove.

4. The detachable fan assembly of the air curtain range hood as described in claim 3, characterized in that, The guiding surface is an arc surface.

5. The detachable fan assembly of the air curtain range hood as described in any one of claims 2-4, characterized in that, The mounting base has an installation interval, and the fan is detachably installed in the installation interval; the fan includes a connecting shaft and multiple blades, the multiple blades are distributed at intervals along the periphery of the connecting shaft and are connected to the connecting shaft, and the two ends of the connecting shaft are detachably connected to the inner wall of the installation interval.

6. The detachable fan assembly of the air curtain range hood as described in claim 5, characterized in that, The mounting base includes two mounting plates, which are spaced apart to form a mounting gap. The two mounting plates are detachably connected to the inner wall of the air guide cavity section. The two ends of the connecting shaft are rotatably connected to the two mounting plates respectively.

7. The detachable fan assembly of the air curtain range hood as described in claim 6, characterized in that, Both mounting plates are provided with through holes, and the two ends of the connecting shaft are rotatably inserted into the through holes.

8. The detachable fan assembly of the air curtain range hood as described in claim 7, characterized in that, It also includes a limiting block, which is fitted onto one end of the connecting shaft and abuts against the periphery of one of the through holes to lock the connecting shaft.

9. The detachable fan assembly of the air curtain range hood as described in claim 1, characterized in that, It also includes a cover plate, which is detachably connected to the end wall of the mounting port to seal or open the mounting port.

10. The detachable fan assembly of the air curtain range hood as described in claim 9, characterized in that, The end wall of the mounting port is provided with a connecting edge, which is used to abut against the cover plate after the cover plate is sealed on the mounting port.

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