Self-cleaning device and range hood comprising same
By setting a self-cleaning device in the range hood impeller and utilizing multiple water outlets and a guide structure, the problems of small flushing range and poor effect in the prior art are solved, a more efficient impeller cleaning effect is achieved, and costs are saved.
Patent Information
- Application Number
- CN202420131145.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The existing impeller cleaning device of the range hood has the problems of small flushing range and poor flushing effect.
A self-cleaning device is set in the impeller. The self-cleaning device includes a shell and multiple water outlets. The water outlets face different directions. The impeller and the water outlets rotate relative to each other. Combined with the guide piece and the propeller structure, the flushing area and flow rate are increased.
Improves the cleaning effect of the impeller, achieves more comprehensive cleaning, saves costs and extends service life.
Smart Images
Figure CN222502208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a self-cleaning device and a range hood comprising the same. Background Art
[0002] Range hoods are essential appliances for people to absorb oil fumes during daily cooking. Cleaning the impeller after the range hood has been running for a period of time is the primary problem for users. Current liquid nozzles generally spray directly, forming an umbrella-shaped spray surface that sprays on the surface of objects, with a small flushing range and poor flushing effect. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art that the direct spray flushing range is small and the flushing effect is poor, and to provide a self-cleaning device and a range hood including the same.
[0004] The utility model solves the above technical problems through the following technical solutions:
[0005] A self-cleaning device is used to clean the impeller of a range hood, wherein a receiving cavity is formed in the impeller, and the self-cleaning device is arranged in the receiving cavity. The self-cleaning device comprises a shell, wherein a cleaning cavity is formed in the shell, and the cleaning cavity is used to accommodate a cleaning liquid. A plurality of water outlets are provided on the shell and connected to the cleaning cavity, and the plurality of water outlets face different directions of the impeller, and the impeller and the water outlets move directly relative to each other.
[0006] In this solution, a self-cleaning device is arranged in the accommodating cavity in the impeller. The self-cleaning device has multiple water outlets. The multiple water outlets face different directions of the impeller, and the impeller and the water outlets rotate relative to each other, thereby increasing the flushing area and improving the cleaning effect.
[0007] Preferably, a plurality of guide members are provided at the plurality of water outlets, the outer wall of the guide members is connected to the outer shell, the guide members are connected to the cleaning chamber and the outside, the guide members protrude from the outer shell and the axial direction of the guide members is toward different directions of the impeller.
[0008] In this solution, a plurality of guide members are provided to guide the cleaning liquid to different parts of the impeller to enhance the cleaning effect.
[0009] Preferably, the self-cleaning device also includes a flexible member, one end of which is connected to the guide member, and the other end of which is connected to the outer shell to change the angle between the axial direction of the guide member and the impeller, and the guide member is connected to the flexible member and the cleaning chamber.
[0010] In this solution, the guide member and the shell are connected by a flexible member, and the guide member is rotatably connected to the shell. The direction of the guide member can be adjusted according to the cleaning effect to obtain a better cleaning effect.
[0011] Preferably, the shell includes a body and a nozzle, one end of the nozzle is connected to the body, and the other end of the nozzle extends toward the inner wall surface close to the impeller, a first accommodating chamber is provided in the body, and a second accommodating chamber is provided in the nozzle, the first accommodating chamber and the second accommodating chamber are connected to form the cleaning chamber, and the plurality of water outlets are arranged at one end of the nozzle close to the inner wall surface of the impeller and connected to the second accommodating chamber.
[0012] In this solution, the outer shell is divided into a main body and a nozzle, and the water outlet is arranged on the nozzle. The nozzle is closer to the inner surface of the impeller than the main body. For cleaning liquid with the same flow rate at the water outlet, the water outlet is close to the impeller, and the flow rate of the cleaning liquid when it reaches the impeller is greater, thereby having a better cleaning effect on the impeller.
[0013] Preferably, the cross section of the body is circular, and the extending direction of the nozzle is tangent to the edge of the shell.
[0014] In this solution, the cross section of the body is circular, the extension direction of the nozzle is tangent to the edge of the shell, the cleaning liquid rotates in the body, and the flow velocity of the liquid sprayed along the tangent line is greater.
[0015] Preferably, the self-cleaning device also includes a propeller and a driving member, the propeller is arranged in the cleaning chamber, the propeller is connected to the output shaft of the driving member, and rotates under the action of the driving member, and the angle between the rotation direction of the output shaft of the driving member and the axial direction of at least one of the water outlets is an acute angle.
[0016] In this solution, a propeller is added inside the housing, and the propeller is driven to rotate by a driving member, thereby increasing the speed of the cleaning liquid flowing out of the outlet and improving the cleaning effect.
[0017] Preferably, the self-cleaning device is coaxially arranged with the impeller, the output shaft of the driving member is connected to the impeller and drives the impeller to rotate, and the impeller and the propeller are both connected to the output shaft of the driving member and rotate synchronously.
[0018] In this solution, the impeller and the propeller are both connected to the output shaft of the driving member, and the two share a driving member, which saves materials and costs. In addition, during the installation of the impeller, it is necessary to install a hand-tightening nut, but now the propeller is connected instead of the hand-tightening nut, saving materials.
[0019] Preferably, the propeller includes a propeller disk and blades, the blades are connected to the propeller disk, one of the propeller disk and the output shaft is provided with a protrusion, and the other is provided with a groove matching therewith, and the protrusion is clamped in the groove.
[0020] In this solution, the propeller disc and the output shaft are matched through a protrusion and groove structure, which has a simple structure, reliable matching and low cost.
[0021] Preferably, there are a plurality of blades, and the plurality of blades are arranged at intervals along the circumferential direction of the disk.
[0022] In this solution, a plurality of blades are connected to the propeller disk to increase the force acting on the cleaning liquid, increase the flow rate of the cleaning liquid at the water outlet, and improve the cleaning effect.
[0023] A range hood comprises the self-cleaning device as described above.
[0024] In this solution, a self-cleaning device is arranged in the accommodating cavity in the impeller. The self-cleaning device has multiple water outlets. The multiple water outlets face different directions of the impeller, and the impeller and the water outlets rotate relative to each other, thereby increasing the flushing area and improving the cleaning effect.
[0025] The positive progressive effect of the utility model is that: the self-cleaning device of the utility model and the range hood including the same are provided with the self-cleaning device in the accommodating cavity in the impeller, the self-cleaning device has a plurality of water outlets, the plurality of water outlets are oriented towards different directions of the impeller, and the impeller and the water outlets rotate relative to each other, thereby increasing the flushing area and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a three-dimensional view of a self-cleaning device according to an embodiment of the utility model.
[0027] Figure 2 This is a partial enlarged view of area A of the self-cleaning device of one embodiment of the utility model.
[0028] Figure 3 It is a top view of a self-cleaning device according to an embodiment of the present utility model.
[0029] Figure 4 It is a cross-sectional view along the BB direction of a self-cleaning device according to an embodiment of the present invention.
[0030] Figure 5 The figure is a schematic diagram of the arrangement relationship between the self-cleaning device and the impeller according to one embodiment of the utility model.
[0031] Description of reference numerals:
[0032] Housing 100
[0033] Ontology 101
[0034] Nozzle 102
[0035] Guide 103
[0036] Water inlet pipe 104
[0037] Fixed shaft 105
[0038] Water outlet 106
[0039] Flexible parts 107
[0040] Blade 108
[0041] Propeller disc 109
[0042] Cleaning chamber 110
[0043] Impeller 200
[0044] Accommodating chamber 201
[0045] Drive 300
[0046] Output shaft 301 DETAILED DESCRIPTION
[0047] In order to deepen the understanding of the utility model, the following is a detailed description in conjunction with the accompanying drawings and specific implementation methods. The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only used as examples to explain the utility model, and are not used to limit the utility model. Those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other implementation schemes, variants, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the utility model. Based on the understanding of the principles of the utility model, ordinary technicians in this field can obtain other drawings and other embodiments without paying creative work, all of which belong to the protection scope of the utility model.
[0048] like Figures 1 to 5As shown, this embodiment discloses a self-cleaning device for cleaning an impeller 200 of a range hood, wherein an accommodating chamber 201 is formed in the impeller 200, and the self-cleaning device is disposed in the accommodating chamber 201. The self-cleaning device comprises a housing 100, wherein a cleaning chamber 110 is formed in the housing 100, and the cleaning chamber 110 is used to accommodate a cleaning liquid, wherein a water inlet pipe 104 is connected to the housing 100, and is used to inject a cleaning liquid into the cleaning chamber 110, wherein a plurality of water outlets 106 are provided on the housing 100 and are connected to the cleaning chamber 110, wherein the plurality of water outlets 106 face different directions of the impeller 200, and the impeller 200 and the water outlet 106 directly move relative to each other. When the impeller 200 rotates relative to the water outlet 106, the plurality of water outlets 106 spray cleaning liquid at different angles to impact different positions of the impeller 200, thereby increasing the flushing area and improving the cleaning effect.
[0049] Multiple guide members 103 are arranged at multiple water outlets 106 , the outer wall of the guide member 103 is connected to the outer shell 100 , the guide member 103 is connected to the cleaning chamber 110 and the outside, the guide member 103 protrudes from the outer shell 100 and the axial direction of the guide member 103 faces different directions of the impeller 200 .
[0050] The housing 100 includes a body 101 and a nozzle 102. The nozzle 102 protrudes from the body 101 and is close to the inner wall surface of the impeller 200. A plurality of guide members 103 are arranged on the nozzle 102. The cross section of the body 101 is circular, and the extension direction of the nozzle 102 is tangent to the edge of the housing 100. The body 101 has a first accommodating chamber, the nozzle 102 has a second accommodating chamber, the guide member 103 is connected to the second accommodating chamber, and the first accommodating chamber is connected to the second accommodating chamber to form a cleaning chamber 110. Compared with the body 101, the nozzle 102 is closer to the inner surface of the impeller 200. For the cleaning liquid with the same flow rate at the water outlet 106, the water outlet 106 is close to the impeller 200. When the cleaning liquid reaches the impeller 200, the flow rate is higher, and the cleaning effect on the impeller 200 is better. The extension direction of the nozzle 102 is tangent to the edge of the housing 100. The cleaning liquid rotates in the body 101, and the flow rate sprayed along the tangent is higher.
[0051] In this embodiment, the guide member 103 and the nozzle 102 are integrally formed, have high structural strength, and are not easily damaged by water flow impact.
[0052] In other embodiments, the guide member 103 is rotatably connected to the housing 100 through the flexible member 107, one end of the flexible member 107 is connected to the guide member 103, and the other end of the flexible member 107 is connected to the housing 100 to change the angle between the axial direction of the guide member 103 and the impeller 200, and the guide member 103 is connected to the flexible member 107 and the cleaning chamber 110. A plurality of guide members 103 are provided to guide the cleaning liquid to different parts of the impeller 200 to increase the cleaning effect. The flexible member 107 connects the guide member 103 and the housing 100, and the guide member 103 is rotatably connected to the housing 100, and the direction of the guide member 103 can be adjusted according to the cleaning effect to obtain a better cleaning effect.
[0053] In order to increase the impact force of the cleaning liquid on the impeller 200 and improve the cleaning effect, the self-cleaning device also includes a propeller and a driving member 300. The propeller is arranged in the body 101, and the propeller is connected to the output shaft 301 of the driving member 300, and rotates under the action of the driving member 300. The angle between the rotation direction of the output shaft 301 of the driving member 300 and the axial direction of at least one water outlet 106 is an acute angle or parallel. The rotation of the output shaft 301 drives the propeller to rotate, and the rotation of the propeller drives the cleaning liquid to rotate in the same direction. The cleaning liquid is sprayed from the axial direction of the water outlet 106. The angle between the axis of the water outlet 106 and the water flow direction is an acute angle, then the component velocity of the water flow direction in the axial direction of the water outlet 106 is large, and the component velocity in the direction perpendicular to the axial direction of the water outlet 106 is small, thereby reducing the speed loss. When the axial direction of the water outlet 106 is parallel to the water flow direction at that point, the component velocity in the direction perpendicular to the axial direction of the water outlet 106 is 0, the flow velocity in the axial direction of the water outlet 106 is the largest, and the cleaning effect is the best.
[0054] The self-cleaning device is coaxially arranged with the impeller 200, the output shaft 301 of the driving member 300 is connected to the impeller 200 and drives the impeller 200 to rotate, and the impeller 200 and the propeller are both connected to the output shaft 301 of the driving member 300 and rotate synchronously. The impeller 200 and the propeller are both connected to the output shaft 301 of the driving member 300, and the two share a driving member 300, which saves materials and costs. In addition, during the installation of the impeller 200, it is necessary to install a hand-tightening nut, but now the propeller is connected instead of the hand-tightening nut, saving materials.
[0055] The propeller includes a propeller disk 109 and blades 108. The blades 108 are connected to the propeller disk 109. The propeller disk 109 is provided with a protrusion. The output shaft 301 is provided with a groove matched therewith, and the protrusion is clamped in the groove. The output shaft 301 rotates to drive the connected propeller disk 109 to rotate, and the propeller disk 109 drives the blades 108 to rotate, and the blades 108 act on the cleaning liquid. The propeller disk 109 and the output shaft 301 are matched through the protrusion and groove structure, which has a simple structure, reliable matching, and low cost. There are multiple blades 108, and the multiple blades 108 are arranged at intervals along the circumferential direction of the disk to increase the force on the cleaning liquid, increase the flow rate of the cleaning liquid at the water outlet 106, and improve the cleaning effect.
[0056] In this embodiment, the self-cleaning device also includes a fixed shaft 105, one end of the fixed shaft 105 is connected to the volute of the range hood, and the other end of the fixed shaft 105 is connected to the outer casing 100. The self-cleaning device and the volute are relatively stationary. The self-cleaning device is fixedly installed and does not rotate. It is not easy to wear, which extends the service life and improves stability.
[0057] The utility model also discloses a range hood, comprising the self-cleaning device as described above. When the range hood is working normally, no cleaning liquid is injected into the cleaning chamber 110. At this time, the impeller 200 and the propeller rotate synchronously. The impeller 200 rotates to extract the oil smoke, and the propeller is idle and has no practical effect. When the impeller 200 needs to be cleaned, the cleaning liquid is injected into the cleaning chamber 110 through the water inlet pipe 104, and the output shaft 301 of the driving member 300 drives the propeller to rotate. The rotation of the propeller accelerates the movement of the cleaning liquid in the cleaning chamber 110. The cleaning liquid is sprayed from the guide member 103 at the nozzle 102. Because the multiple guide members 103 face different angles, different areas of the impeller 200 can be cleaned. The impeller 200 also rotates under the drive of the output shaft 301, while the water outlet 106 is stationary. The water outlet 106 and the impeller 200 rotate relative to each other, thereby comprehensively cleaning the impeller 200.
Claims
1. A self-cleaning device for cleaning an impeller of a range hood, wherein a receiving cavity is formed in the impeller, and the self-cleaning device is arranged in the receiving cavity, characterized in that: The self-cleaning device includes a shell, a cleaning cavity is formed in the shell, and the cleaning cavity is used to accommodate cleaning liquid. A plurality of water outlets are opened on the shell and connected to the cleaning cavity. The plurality of water outlets face different directions of the impeller, and the impeller and the water outlets move directly relative to each other.
2. The self-cleaning device according to claim 1, characterized in that: A plurality of guide members are arranged at the plurality of water outlets, the outer wall of the guide members is connected to the outer shell, the guide members are connected to the cleaning chamber and the outside, the guide members protrude from the outer shell and the axial direction of the guide members faces different directions of the impeller.
3. The self-cleaning device according to claim 2, characterized in that: The self-cleaning device also includes a flexible member, one end of which is connected to the guide member, and the other end of which is connected to the housing to change the angle between the axial direction of the guide member and the impeller. The guide member is connected to the flexible member and the cleaning chamber.
4. The self-cleaning device according to claim 1, characterized in that: The shell includes a body and a nozzle, one end of the nozzle is connected to the body, and the other end of the nozzle extends toward the inner wall surface of the impeller. A first accommodating chamber is provided in the body, and a second accommodating chamber is provided in the nozzle. The first accommodating chamber and the second accommodating chamber are connected to form the cleaning chamber, and the plurality of water outlets are arranged at one end of the nozzle close to the inner wall surface of the impeller and are connected to the second accommodating chamber.
5. The self-cleaning device according to claim 4, characterized in that: The cross section of the body is circular, and the extending direction of the nozzle is tangent to the edge of the shell.
6. The self-cleaning device according to claim 1, characterized in that: The self-cleaning device also includes a propeller and a driving member. The propeller is arranged in the cleaning chamber, connected to the output shaft of the driving member, and rotates under the action of the driving member. The angle between the rotation direction of the output shaft of the driving member and the axial direction of at least one of the water outlets is an acute angle.
7. The self-cleaning device according to claim 6, characterized in that: The self-cleaning device is coaxially arranged with the impeller, the output shaft of the driving member is connected to the impeller and drives the impeller to rotate, and the impeller and the propeller are both connected to the output shaft of the driving member and rotate synchronously.
8. The self-cleaning device according to claim 7, characterized in that: The propeller includes a propeller disk and blades, wherein the blades are connected to the propeller disk, and one of the propeller disk and the output shaft is provided with a protrusion, and the other is provided with a groove matched therewith, and the protrusion is clamped in the groove.
9. The self-cleaning device according to claim 8, characterized in that: The number of the blades is plural, and the blades are arranged at intervals along the circumferential direction of the disk.
10. A range hood, characterized in that: The range hood comprises a self-cleaning device as described in any one of claims 1-9.