CN216203633U - Air outlet grille, hood, air outlet system of central range hood and range hood - Google Patents
Air outlet grille, hood, air outlet system of central range hood and range hood Download PDFInfo
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- CN216203633U CN216203633U CN202122658336.5U CN202122658336U CN216203633U CN 216203633 U CN216203633 U CN 216203633U CN 202122658336 U CN202122658336 U CN 202122658336U CN 216203633 U CN216203633 U CN 216203633U
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Abstract
The utility model discloses an air outlet grille, a hood, an air outlet system and a range hood of a central range hood, wherein the air outlet grille is arranged at an air outlet and comprises: a plurality of rain-proof pneumatic sheets arranged in a transverse array; the rain-proof pneumatic piece includes: a diffusion section in the discharge flue, a rain-proof section contacting with the outside air; the rainproof section is connected with the tail end of the diffusion section; on the cross section of the rain-proof pneumatic sheet, the whole rain-proof pneumatic sheet is in an upward convex arc shape, the head end of the diffusion section is in a water drop shape, and the thickness of the cross section of the diffusion section is gradually reduced from the head end to the tail end; the rain-proof pneumatic sheet is obliquely arranged, and the included angle between the tangent line of any point of the rain-proof section cambered surface and the horizontal plane is smaller than the included angle between the tangent line of any point of the diffusion section cambered surface and the horizontal plane. The head end of the diffusion section has a smooth guiding effect on the air outlet, and the diffusion section generates a certain diffusion and deceleration effect on the air at the air outlet, so that the static pressure loss and the pneumatic noise are reduced; rain-proof section is direct to be faced outdoors, sets up gently and prevents that the rainwater from drenching into the grid.
Description
Technical Field
The utility model relates to the technical field of kitchen appliances, in particular to an air outlet grille, a rainproof hood, a rainproof air outlet system and a central range hood, which are applied to an air outlet of the central range hood.
Background
The central range hood consists of a host, a terminal, a fire-proof valve and a cloud platform. One terminal is used for each household, no motor is used, and compared with the traditional range hood, noise reduction, an embedded intelligent system, air volume self-adaption and the like are realized; only one main machine is arranged at the outlet of the unit roof smoke exhaust channel, and the indoor oil smoke suction and exhaust is completed by means of frequency conversion forced extraction and quintuple purification technology treatment. Therefore, the central range hood is not an individual but a system. After a terminal machine of the central range hood is opened, the LORA wireless starts a roof host machine, meanwhile, a power distribution valve plate on the terminal machine is opened, and the roof host machine can forcibly pump the oil fume in the discharge flue, so that negative pressure is formed in the discharge flue, the oil fume is sucked out of the discharge flue and then is subjected to centralized purification by the roof host machine, and finally, the oil fume is harmlessly discharged into the atmosphere. The central range hood further improves the oil smoke collection rate of the kitchen range hood system during the dish frying.
Because the host computer of central range hood is installed in the exit of roof discharge flue, in order to guarantee central range hood's steady operation, need avoid rainwater to get into key parts such as fan motor in the rainy day, guarantee range hood can normal operating in the rainy day, avoid producing the potential safety hazard. Moreover, the noise of the central range hood also influences the noise environment of high-rise residents to a great extent.
Therefore, considering the use performance and the user experience of the central range hood, a rainproof and noise-reducing structure is urgently needed to be provided for the central range hood.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a rainproof air outlet grille of a central range hood, which reduces the noise of the central range hood while preventing rain.
The utility model provides a central smoke exhaust ventilator rainproof air outlet grille, which is arranged at an air outlet and comprises: a plurality of rain-proof pneumatic sheets arranged in a transverse array;
the rain-proof pneumatic piece includes: a diffusion section in the discharge flue, a rain-proof section contacting with the outside air; the rainproof section is connected with the tail end of the pressure expansion section; on the cross section of the rain-proof pneumatic sheet, the whole rain-proof pneumatic sheet is in an upward convex arc shape, the head end of the diffusion section is in a water drop shape, and the thickness of the section of the diffusion section is gradually reduced from the head end to the tail end;
the rain-proof pneumatic sheet slope sets up, the tangent line of rain-proof section cambered surface arbitrary point is less than with the contained angle of horizontal plane the tangent line of diffusion section cambered surface arbitrary point and the contained angle of horizontal plane.
Furthermore, a water receiving groove which is inclined and concave is arranged at the joint of the diffusion section and the rain-proof section, and the water receiving groove is in smooth transition with the diffusion section and the rain-proof section respectively.
Further, the longitudinal length of the rain-proof pneumatic sheet is larger than that of the air outlet.
Further, the thickness of the tail end of the diffusion section is 1/2-1/3 of the thickness of the head end of the diffusion section.
Further, the thickness of the rain-proof section is smaller than or equal to that of the tail end of the diffusion section.
The air outlet grille has the beneficial effects that:
the head end of the water drop-shaped diffusion section plays a smooth guiding role for the air outlet, the thickness of the cross section of the diffusion section is gradually reduced, a certain diffusion and deceleration role is generated for the air at the air outlet, the air flow rate flowing out of the air outlet is reduced, and the static pressure loss and the pneumatic noise are reduced; the contained angle of rain-proof section tangent line and horizontal plane is less than the contained angle of diffusion section tangent line and horizontal plane, and it is thus clear that rain-proof section is more gentle than diffusion section setting, and rain-proof section is direct outdoor facing, sets up gently and prevents that the rainwater from drenching into the grid.
The utility model also provides a rain-proof hood, comprising: the shell, the air outlet grille arranged at the air outlet of the shell and the diffuser pipe arranged in the shell; the diffuser pipe is arranged in an inclined mode, the inclined direction of the diffuser pipe is consistent with that of the rainproof pneumatic sheet, and the size of the air outlet of the diffuser pipe corresponds to that of the air outlet of the shell.
Furthermore, the rain-proof hood also comprises a flow guide channel, and the flow guide channel is arranged below the longitudinal end part of the air outlet grille.
Furthermore, the flow guide channel is of a concave structure, and one axial end of the flow guide channel is higher than the other axial end of the flow guide channel.
The air outlet grille has the beneficial effects that:
the rain-proof hood comprises the air outlet grille, the technical effect which can be achieved by the air outlet grille can be achieved, the diffuser pipe plays a role in speed reduction and diffusion, the static pressure of the fan is improved, the air outlet flow rate is reduced, the pneumatic noise is reduced, and the pneumatic performance of the fan is improved.
The utility model also provides a rain-proof air outlet system of the central range hood, which comprises: the fan is arranged on the hood at the air outlet of the fan.
The utility model also provides a central range hood, which comprises: the air outlet system is arranged at the top of the discharge flue.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a rain hat provided in an embodiment of the present invention;
FIG. 2 is a schematic view of another posture structure of the rain hat provided in the embodiment of the present invention;
fig. 3 is a schematic sectional view of the rain hat shown in fig. 2.
Icon: 1-rain-proof pneumatic sheet; 1-a diffusion section; 1-2-rain-proof section; 1-3-water receiving tank; 2-a housing; 2-1-air outlet; 3-a diffuser pipe; 4, a flow guide channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to more clearly explain the technical solution of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
As shown in fig. 1-3, the embodiment provides a central extractor hood rainproof air outlet grille, which is disposed at the air outlet 2-1, and includes: a plurality of rain-proof pneumatic sheets 1 which are arranged in a transverse array;
the rain-proof pneumatic piece 1 includes: a diffusion section 1-1 positioned in the smoke discharge channel and a rainproof section 1-2 contacted with the outside air; the rain-proof section 1-2 is connected with the tail end of the diffusion section 1-1; on the cross section of the rain-proof pneumatic sheet 1, the whole rain-proof pneumatic sheet 1 is in an upward convex arc shape, the head end of the diffusion section 1-1 is in a water drop shape, and the section thickness of the diffusion section 1-1 is gradually reduced from the head end to the tail end;
the rain-proof pneumatic sheet 1 is obliquely arranged, and the included angle between the tangent line of any point of the cambered surface of the rain-proof section 1-2 and the horizontal plane is smaller than the included angle between the tangent line of any point of the cambered surface of the diffusion section 1-1 and the horizontal plane.
In the rain-proof air-out grille of the embodiment, the head end of the water drop-shaped diffusion section 1-1 plays a smooth guiding role for air-out, the thickness of the section of the diffusion section 1-1 is gradually reduced, and a certain diffusion and deceleration role is generated for air at the air outlet 2-1, so that the air flow rate flowing out of the air outlet 2-1 is reduced, and the static pressure loss and the pneumatic noise are reduced; the included angle between the tangent line of the rain-proof section 1-2 and the horizontal plane is smaller than the included angle between the tangent line of the diffusion section 1-1 and the horizontal plane, therefore, the rain-proof section 1-2 is more gentle than the diffusion section 1-1, the rain-proof section 1-2 directly faces outdoors, and the grid for preventing rainwater from being drenched is gently arranged.
In this embodiment, a water receiving trough 1-3 which is inclined and concave is arranged at the joint of the pressure expansion section 1-1 and the rain-proof section 1-2, and the water receiving trough 1-3, the pressure expansion section 1-1 and the rain-proof section 1-2 are in smooth transition respectively.
The water receiving tank 1-3 is used for receiving rainwater which accidentally flows into the rain-proof air-out grille and preventing the rainwater from flowing into the fan and influencing the performance of the fan, the water receiving tank 1-3 and the pressure expansion section 1-1 and the rain-proof section 1-2 are respectively in smooth transition, so that the rainwater entering the rain-proof air-out grille can gradually flow into the water receiving tank 1-3 along the rain-proof section 1-2, and the rainwater in the water receiving tank 1-3 can flow out along the two longitudinal ends of the rain-proof pneumatic sheet 1.
Preferably, on the cross section of the rain-proof pneumatic sheet 1, the water receiving tank 1-3 is in a curve shape, the shape of the water receiving tank is similar to that of a water drop, so that the water receiving tank 1-3 and the diffusion section 1-1 and the rain-proof section 1-2 respectively keep certain curve streamline transition, and when airflow passes through the diffusion section 1-1 and reaches the water receiving tank 1-3, the curve streamline transition can reduce separation vortex caused by airflow turning, and further reduce pneumatic loss.
In this embodiment, the longitudinal length of the rain-proof pneumatic sheet 1 is longer than the length of the air outlet 2-1. Firstly, the air outlet area of the air outlet 2-1 can be fully utilized; secondly, the fixing of the rain-proof pneumatic sheet 1 is more beneficial, referring to fig. 2-3, a part of rain-proof section 1-2 at the top of two ends of the rain-proof pneumatic sheet 1 is fixed on the shell 2 at the edge of the air outlet 2-1, preferably, the part of rain-proof section 1-2 is welded on the shell 2 at the edge of the air outlet 2-1; thirdly, when the rainwater in the water receiving grooves 1-3 is discharged from the end part of the rainproof pneumatic sheet 1, the rainwater is ensured not to be discharged into the fan.
In the embodiment, the thickness of the tail end of the diffuser section 1-1 is 1/2-1/3 of the thickness of the head end of the diffuser section 1-1.
Preferably, the thickness of the rain-proof section 1-2 is equal to the thickness of the tail end of the diffuser section 1-1. If the thickness of the rain-proof section 1-2 is larger than the thickness of the tail end of the diffusion section 1-1, the diffusion effect of the diffusion section 1-1 can be influenced, the thicknesses of the rain-proof section 1-2 and the diffusion section are set to be consistent, and the processing of the whole rain-proof pneumatic sheet 1 is facilitated. In addition, the reduction of the materials of the rain-proof section 1-2 is beneficial to reducing the overall quality of the rain-proof pneumatic sheet 1, and is convenient for fixing the rain-proof pneumatic sheet 1.
In other embodiments of the present invention, the thickness of the rain-proof section 1-2 can be smaller than the thickness of the tail end of the diffuser section 1-1 while ensuring the strength of the rain-proof section 1-2.
Example two
As shown in fig. 1 to 3, the present embodiment provides a rain hood, comprising: the shell 2, the air outlet grille in the first embodiment arranged at the air outlet 2-1 of the shell 2 and the diffuser pipe 3 arranged in the shell 2; the diffuser pipe 3 is obliquely arranged, the oblique direction of the diffuser pipe is consistent with that of the rainproof pneumatic sheet 1, and the size of the air outlet of the diffuser pipe 3 corresponds to that of the air outlet 2-1 of the shell 2.
This rain-proof hood includes the air-out grid of embodiment one, can gain the technological effect that the air-out grid can gain to, diffuser pipe 3 plays the effect of speed reduction diffuser, promotes the static pressure of fan, reduces the air-out velocity of flow, reduces aerodynamic noise, has improved the aerodynamic performance of fan.
The hood of this embodiment also includes flow leader 4, and flow leader 4 sets up the below at the vertical tip of air-out grid.
The flow guide channel 4 is used for containing rainwater flowing down from the end parts of the water receiving grooves 1-3 and discharging the rainwater outside the fan case.
Preferably, the flow guide channel 4 is of a concave structure, and one axial end of the flow guide channel 4 is higher than the other axial end. The concave-structured flow guide channel 4 is used for storing rainwater, one end of the flow guide channel 4 is higher than the other end of the flow guide channel in the axial direction, namely, the flow guide channel 4 is obliquely arranged, and rainwater in the flow guide channel 4 can be smoothly discharged out of the flow guide channel 4.
EXAMPLE III
Referring to fig. 1-3, the embodiment provides a central range hood rain-proof air-out system, which includes: and the fan is arranged on the hood at the air outlet of the fan in the second embodiment.
Through the hood in installation embodiment two, the rain-proof air-out system of central authorities' range hood of this embodiment can be effectively rain-proof in, promotes the aerodynamic performance of fan.
Example four
Referring to fig. 1-3, the present embodiment provides a central range hood, including: and the air outlet system is arranged at the top of the discharge flue in the third embodiment.
Through the air-out system in installation embodiment three, the central range hood of this embodiment can be rain-proof and promote the aerodynamic performance of fan.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a rain-proof air-out grid of central authorities' range hood, its characterized in that sets up in air outlet department, includes: a plurality of rain-proof pneumatic sheets (1) which are arranged in a transverse array;
the rain-proof pneumatic sheet (1) comprises: a diffusion section (1-1) positioned in the discharge flue, and a rain-proof section (1-2) contacted with the outside air; the rainproof section (1-2) is connected with the tail end of the diffusion section (1-1); on the cross section of the rain-proof pneumatic sheet (1), the whole rain-proof pneumatic sheet (1) is in an upward convex arc shape, the head end of the diffusion section (1-1) is in a water drop shape, and the section thickness of the diffusion section (1-1) is gradually reduced from the head end to the tail end;
the rain-proof pneumatic sheet (1) is obliquely arranged, and the included angle between the tangent line of any point of the cambered surface of the rain-proof section (1-2) and the horizontal plane is smaller than the included angle between the tangent line of any point of the cambered surface of the diffusion section (1-1) and the horizontal plane.
2. The rain-proof air-out grille of claim 1 is characterized in that a water receiving groove (1-3) which is inclined and concave is arranged at the joint of the diffuser section (1-1) and the rain-proof section (1-2), and the water receiving groove (1-3) is in smooth transition with the diffuser section (1-1) and the rain-proof section (1-2) respectively.
3. Rain-proof air-out grille according to claim 1 or 2, characterized in that the longitudinal length of the rain-proof pneumatic sheet (1) is larger than the length of the air outlet.
4. The rainproof air outlet grille according to claim 1, wherein the tail end thickness of the diffuser section (1-1) is 1/2-1/3 of the head end thickness of the diffuser section (1-1).
5. Rain-proof air-out grille according to claim 4, characterized in that the thickness of the rain-proof section (1-2) is smaller than or equal to the thickness of the tail end of the diffuser section (1-1).
6. A rain-proof hood, characterized by, includes: the air outlet grille comprises a shell (2), an air outlet grille according to any one of claims 1-5 and arranged at an air outlet (2-1) of the shell (2), and a diffuser pipe (3) arranged in the shell (2); the diffuser pipe (3) is obliquely arranged, the oblique direction of the diffuser pipe is consistent with that of the rainproof pneumatic sheet (1), and the size of the air outlet of the diffuser pipe (3) corresponds to that of the air outlet (2-1) of the shell (2).
7. Rain hood according to claim 6, further comprising a flow leader (4), said flow leader (4) being arranged below the longitudinal ends of said air outlet grille.
8. Rain protection hood according to claim 7 characterized in that the flow leader (4) is of concave configuration, with one axial end of the flow leader (4) being higher than the other.
9. The utility model provides a rain-proof air-out system of central authorities' range hood which characterized in that includes: a fan, the hood as claimed in any one of claims 6-8 installed at the outlet of the fan.
10. A central range hood, comprising: the air outlet system of claim 9 mounted on the top of the discharge flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658336.5U CN216203633U (en) | 2021-11-02 | 2021-11-02 | Air outlet grille, hood, air outlet system of central range hood and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658336.5U CN216203633U (en) | 2021-11-02 | 2021-11-02 | Air outlet grille, hood, air outlet system of central range hood and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216203633U true CN216203633U (en) | 2022-04-05 |
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ID=80899081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122658336.5U Active CN216203633U (en) | 2021-11-02 | 2021-11-02 | Air outlet grille, hood, air outlet system of central range hood and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216203633U (en) |
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2021
- 2021-11-02 CN CN202122658336.5U patent/CN216203633U/en active Active
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