Air door device for enhancing air blowing

Abstract

The invention relates to the technical field of kitchen appliances, in particular to an air door device for enhancing air blowing. The air door device for enhancing air blowing comprises a fan assembly, a nozzle assembly and an adjusting plate. The fan assembly comprises a blower nozzle; the adjusting plate is arranged between the fan assembly and the nozzle assembly; the adjusting plate is provided with an adjusting channel right opposite to the blower nozzle. The adjusting channel is of a horn mouth structure capable of gathering wind and guiding flow so that primary air from the blower nozzle can be injected to the injection pipe. In this way, rapid and convenient primary air conditioning can be achieved.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and more specifically, to a damper device for enhancing airflow. Background Technology A gas stove generates heat by burning natural gas, which can then be used for cooking. Its core structure is the burner, which includes a natural gas inlet, burner head, inner ring burner cap, and outer ring burner cap. Natural gas combustion requires a certain amount of oxygen. When a gas stove has both inner and outer ring burner caps, air must be injected into both the inner and outer ring burners separately to supplement the oxygen needed for combustion.

[0002] Currently, most gas stoves on the market use a rotary built-in air damper for primary air conditioning. The main drawback of this existing technology is: Poor structural stability: Traditional snap-on dampers are prone to loosening due to thermal deformation, affecting the stability of the air-fuel ratio; Limitations of adjustment methods: Rotary dampers (such as louver structures) cause large airflow disturbances and lack linear adjustment precision; Maintenance difficulties: The built-in damper requires disassembly for cleaning, and the threaded fixing structure has not been used in the field of stove dampers. Summary of the Invention

[0003] The object of the present invention includes, for example, providing a damper device for enhancing airflow, which enables rapid and convenient one-time air conditioning.

[0004] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a damper device for enhancing airflow, comprising: Fan assembly, nozzle assembly, and regulating plate; The fan assembly includes an air inlet; the regulating plate is disposed between the fan assembly and the nozzle assembly; The regulating plate has an regulating channel facing the blower; the regulating channel is provided with a flared structure that can concentrate and guide airflow, so as to guide the primary air from the blower to the ejector tube.

[0005] The regulating channel allows the primary air entering the blower, in addition to being driven by the blower itself, to pass through the flared structure, enhancing the primary air entrainment capability. This ensures that the regulating channel guarantees both the primary air entrainment speed and the amount of air introduced into the blower when the damper is adjusted.

[0006] In an optional embodiment, the regulating plate is configured to adjust the amount of air entering the ejector tube from the blower by adjusting its distance from the blower.

[0007] In an optional embodiment, in the direction from the fan assembly to the nozzle assembly, the adjustment channel includes a contraction tube, a mixing tube, and a diffuser tube connected in sequence to form a flared structure, wherein the diameter of the contraction tube gradually decreases and the diameter of the diffuser tube gradually increases.

[0008] In an optional embodiment, the contraction tube, the mixing tube, and the diffuser tube are arranged coaxially and collinearly. Both the contraction tube and the diffuser tube have a tapered cross-section, with the tapered angle of the contraction tube being 10° to 30° and the tapered angle of the diffuser tube being 5° to 15°. The mixing tube is a straight tube with an axial length of 1-5 mm.

[0009] In an optional embodiment, the area of ​​the port on the side of the contraction tube of the regulating channel away from the mixing tube is equal to or greater than the area of ​​the opening of the blower.

[0010] In an optional embodiment, the nozzle assembly has an air supply port, and the blower is directly opposite the air supply port; the number of the blower, the regulating channel, and the air supply port are the same, so that air enters the nozzle assembly sequentially through the blower, the regulating channel, and the air supply port.

[0011] In optional embodiments, a first sliding portion and a second sliding portion are also included; The first sliding part is disposed on the adjustment plate; the first sliding part and the second sliding part are slidably engaged so that the adjustment plate moves along the second sliding part to approach or move away from the air outlet.

[0012] In an optional embodiment, the bottom of the first sliding part is provided with a groove, the groove is nested and connected to the outer wall of the second sliding part, and the groove slides in cooperation with the second sliding part so that the adjusting plate moves closer to or further away from the blower.

[0013] In an optional embodiment, the second sliding portion is disposed on the nozzle assembly or the fan assembly.

[0014] In an optional embodiment, a first guide portion and a second guide portion are further included; the first guide portion is disposed on the adjusting plate, and the second guide portion is disposed on the fan assembly or the nozzle assembly; the first guide portion and the second guide portion are sleeved together to allow the adjusting plate to move along the centerline direction of the blower opening.

[0015] In an optional embodiment, the first guide portion is a through hole disposed on the adjusting plate; the second guide portion is a guide post disposed on the nozzle assembly; the guide post is sleeved and fitted with the through hole.

[0016] The beneficial effects of the embodiments of the present invention include, for example: The enhanced blower damper device of this solution includes a blower assembly, a nozzle assembly, and an adjusting plate. The adjusting channel of the adjusting plate has a flared structure, which enhances the entrainment capacity of the primary air flowing out of the blower outlet, in addition to the drive of the blower itself. In other words, by using the structure of the adjusting channel, both the entrainment speed of the primary air and the amount of air introduced during damper adjustment can be guaranteed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the air damper device for enhancing airflow according to an embodiment of the present invention; Figure 2 This is an assembly diagram of the air damper device for enhancing airflow according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the damper device for enhancing airflow according to an embodiment of the present invention; Figure 4 A cross-sectional view of the adjusting plate of the air damper device for enhancing airflow according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the adjusting plate of the air damper device for enhancing airflow according to an embodiment of the present invention.

[0019] Icons: 100-Fan assembly; 110-Fan; 120-Fan base; 130-Connecting seat; 133-Blower outlet; 140-Guide cone; 200-Nozzle assembly; 210-Air supply port; 300-Adjusting plate; 310-Adjusting channel; 311-Contraction tube; 312-Mixing tube; 313-Diffuser tube; 410-First sliding part; 411-Groove; 420-Second sliding part; 510-First guide part; 520-Second guide part; 600-Ejector tube. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 This embodiment provides a damper device for enhancing airflow, comprising: Fan assembly 100, nozzle assembly 200, and regulating plate 300; The blower assembly 100 includes an air outlet 133; the regulating plate 300 is disposed between the blower assembly 100 and the nozzle assembly 200; The regulating plate 300 has an regulating channel 310 facing the blower 133; the regulating channel is provided with a flared structure that can concentrate and guide airflow to guide the primary air from the blower 133 to the ejector tube 600.

[0027] The regulating channel 310 of the regulating plate 300 in this design has a flared structure, which enhances the ejection capacity of the primary air flowing out of the blower 133, in addition to the drive of the blower 110 itself. In other words, by using the structure of the regulating channel 310, both the ejection speed of the primary air and the amount of air introduced into the blower can be guaranteed during damper adjustment.

[0028] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 To learn more about the structural details of the damper device that enhances airflow.

[0029] As shown in the figure, the fan assembly 100 includes a fan 110, a fan base 120, and a connecting seat 130. The fan base 120 and the connecting seat 130 are arranged opposite each other, and the fan base 120 and the connecting seat 130 enclose a blower cavity. The fan base 120 is provided with an air outlet connected to the outlet of the fan 110, and the connecting seat 130 is provided with a blower port 133. Furthermore, a guide cone 140 is also provided in the blower cavity, and the blower port 133 is located on the side of the guide cone 140.

[0030] In this embodiment, the damper device includes two fan assemblies 100, each fan assembly 100 cooperating with a corresponding nozzle assembly 200 and an adjusting plate 300. Furthermore, each fan assembly 100 has two symmetrically arranged air inlets 133 on its connecting seat 130, positioned on both sides of the guide cone 140; the corresponding adjusting plate 300 has two corresponding adjusting channels 310; and the nozzle assembly 200 has two corresponding air supply ports 210.

[0031] The guide cone 140 is used to guide the air blown out by the blower 110 to prevent backflow and reverse flow caused by airflow obstruction; at the same time, the air is guided by the cone surface of the guide cone 140 and blown out from the blower 133 in a jet diffusion state, thereby forming an ejector fluid, so that the primary air can enter the nozzle assembly 200 at high speed.

[0032] Furthermore, in this embodiment, when the regulating plate 300 is close to the nozzle assembly 200, the regulating channel 310 is far away from the blower 133, and most of the ejected fluid is blocked by the plate surface of the regulating plate 300. Only a small part of the air can pass through the regulating channel 310 and flow to the nozzle assembly 200. Thus, one air replenishment is in a reduced state. When the damper adjustment plate 300 moves away from the nozzle assembly 200, the adjustment channel 310 moves closer to the blower port 133. The ejector fluid flows directly from the blower port 133 through the adjustment channel 310 and then to the nozzle assembly 200. This completes one air replenishment cycle.

[0033] In an optional embodiment, the regulating plate 300 is configured to adjust the amount of air entering the nozzle assembly 200 from the blower 133 by adjusting its distance from the blower 133. Thus, the regulating plate 300 allows for simple and efficient control of the amount of primary air entering the ejector tube 600.

[0034] from Figure 3 and Figure 4 It can also be seen that, in an optional embodiment, the regulating channel 310, from the fan assembly 100 to the nozzle assembly 200, includes a contraction tube 311, a mixing tube 312, and a diffuser tube 313 connected in sequence to form a bell-shaped structure, with the diameter of the contraction tube 311 gradually decreasing and the diameter of the diffuser tube 313 gradually increasing. That is, the regulating channel in this case is a venturi tube.

[0035] This design allows the primary air blown by the blower 110 to have its injection capacity further enhanced by the venturi regulating channel 310, in addition to being driven by the blower 110 itself. When the damper regulating plate 300 is away from the blower outlet 133 and close to the nozzle end, the contraction tube 311 can collect the blown primary air. This allows for a reduction in the natural injection volume of primary air without increasing the speed of the blower 110, while increasing the volume of blown primary air. The use of the venturi tube structure ensures both the injection speed of the blown primary air and the amount of blown air introduced during damper adjustment. The diffuser tube 313 allows for better mixing of the blown primary air and the fuel gas.

[0036] It is easy to understand that in other embodiments of the present invention, the regulating channel 310 can also be a narrow tube or other structures, as long as the regulating channel 310 can gather and guide air. This is just an example and is not limited to any specific example.

[0037] In an optional embodiment, the contraction tube 311, the mixing tube 312, and the diffuser tube 313 are arranged coaxially and collinearly; the longitudinal section of both the contraction tube 311 and the diffuser tube 313 is tapered, the tapered angle of the contraction tube 311 is 10° to 30°, and the tapered angle of the diffuser tube 313 is 5° to 15°; the mixing tube 312 is straight, and the axial length of the mixing tube 312 is 1-5 mm.

[0038] In an optional embodiment, the area of ​​the port of the contraction tube 311 of the regulating channel 310 on the side away from the mixing tube 312 is equal to or greater than the area of ​​the opening of the blower 133.

[0039] Thus, when the regulating plate 300 is close to the air outlet 133, the air volume of the blower 110 is in the maximum supply state (because the blower air volume is in a jet-diffusion state); when the regulating plate 300 is far away from the air outlet 133 and close to the nozzle assembly 200, the air volume of the blower 110 is in the minimum supply state (because the blower air volume is in a jet-diffusion state, a part of the blower air volume is blocked by the damper regulating plate 300 due to diffusion and cannot be mixed with the gas).

[0040] In an optional embodiment, the nozzle assembly 200 has an air supply port 210 and a blower port 133 facing the air supply port 210. The number of blower ports 133, regulating channels 310 and air supply ports 210 are the same, so that air enters the nozzle assembly 200 in sequence through the blower ports 133, regulating channels 310 and air supply ports 210.

[0041] That is, the blower 133, the regulating channel 310, and the air supply port 210 can be matched one-to-one. This arrangement ensures that the air ejected from the blower 133 can pass smoothly through the regulating channel 310 and the air supply port 210 in sequence before entering the nozzle assembly 200; on the other hand, multiple blowers 133, regulating channels 310, and air supply ports 210 can improve the transmission efficiency of primary air, thereby making the primary air and fuel gas mix more thoroughly.

[0042] like Figure 4 and Figure 5 As shown, in an optional embodiment, the damper device for enhancing airflow further includes a first sliding portion 410 and a second sliding portion 420; the first sliding portion 410 is disposed on the adjusting plate 300; the first sliding portion 410 and the second sliding portion 420 are slidably engaged, so that the adjusting plate 300 moves along the second sliding portion 420 to approach or move away from the air outlet 133. This sliding engagement allows for flexible adjustment of the distance between the adjusting plate 300 and the air outlet 133, thereby adjusting the amount of air entering the nozzle assembly 200.

[0043] It should be noted that both the first sliding part 410 and the second sliding part 420 extend along the axial direction of the air inlet 133. Furthermore, the air inlet 133, the regulating channel 310, and the air supply port 210 are located in the same straight line direction.

[0044] In an optional embodiment, the bottom of the first sliding part 410 is provided with a groove 411, which is nested and connected to the outer wall of the second sliding part 420. The groove 411 and the second sliding part 420 are slidably engaged, allowing the adjusting plate 300 to move closer to or further away from the air outlet 133. Thus, the first sliding part 410 and the second sliding part 420 form a slide rail structure, ensuring both smooth sliding of the adjusting plate 300 and that the adjusting channel 310 of the adjusting plate 300 is always aligned with the air outlet 133, thereby ensuring the accuracy of the air conditioning. Optionally, the second sliding part 420 is a long strip-shaped plate.

[0045] In an optional embodiment, the second sliding portion 420 is disposed on the nozzle assembly 200 or the fan assembly 100.

[0046] In an optional embodiment, the air damper device for enhancing airflow further includes a first guide portion 510 and a second guide portion 520; the first guide portion 510 is disposed on the adjusting plate 300, and the second guide portion 520 is disposed on the blower assembly 100 or the nozzle assembly 200; the first guide portion 510 and the second guide portion 520 are sleeved together to allow the adjusting plate 300 to move along the centerline of the air outlet 133. This arrangement ensures that the adjusting plate 300 moves directly towards the air outlet 133, thus ensuring the stability of airflow regulation.

[0047] In an optional embodiment, the first guide portion 510 is a through hole disposed on the adjusting plate 300; the second guide portion 520 is a guide post disposed on the nozzle assembly 200; the guide post and the through hole are fitted together. That is, in this embodiment, the cooperation between the guide post and the through channel is used to achieve the guiding and limiting function of the horizontal movement of the adjusting plate 300.

[0048] It is easy to understand that in other embodiments of the present invention, the first guide portion 510 and the second guide portion 520 may also be a guide rail structure, a wedge structure, etc. This is just an example and is not limited to any specific example.

[0049] In summary, the embodiments of the present invention provide a damper device for enhancing airflow, which has at least the following advantages: 300mm horizontal linear sliding adjustment plate for precise air adjustment in one operation; The use of a venturi tube ensures both the injection velocity of the primary air and the amount of primary air introduced during damper adjustment. The diffuser tube 313 allows for better mixing of the primary air and fuel gas.

[0050] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A damper device for enhancing airflow, characterized in that, include: Fan assembly (100), nozzle assembly (200) and regulating plate (300); The fan assembly (100) includes an air outlet (133); the regulating plate (300) is disposed between the fan assembly (100) and the nozzle assembly (200); The regulating plate (300) has an regulating channel (310) facing the blower (133); the regulating channel (310) is provided with a flared structure that can concentrate and guide airflow to guide primary air from the blower (133) to the ejector tube (600).

2. The damper device for enhancing airflow according to claim 1, characterized in that: The regulating plate (300) is configured to regulate the amount of air entering the ejector tube (600) from the blower (133) by adjusting the distance from the blower (133).

3. The damper device for enhancing airflow according to claim 1, characterized in that: From the direction of the fan assembly (100) to the nozzle assembly (200), the regulating channel (310) includes a contraction tube (311), a mixing tube (312) and a diffuser tube (313) connected in sequence to form a flared structure, wherein the diameter of the contraction tube (311) gradually decreases and the diameter of the diffuser tube (313) gradually increases.

4. The damper device for enhancing airflow according to claim 3, characterized in that: The contraction tube (311), the mixing tube (312), and the diffuser tube (313) are arranged coaxially and collinearly. The longitudinal sections of both the contraction tube (311) and the diffuser tube (313) are tapered tubes. The cone angle of the contraction tube (311) is 10° to 30°, and the cone angle of the diffuser tube (313) is 5° to 15°. The mixing tube (312) is a straight tube, and the axial length of the mixing tube (312) is 1-5mm.

5. The damper device for enhancing airflow according to claim 3, characterized in that: The area of ​​the port of the contraction tube (311) of the regulating channel (310) away from the mixing tube (312) is equal to or greater than the area of ​​the opening of the blower (133).

6. The damper device for enhancing airflow according to claim 1, characterized in that: The nozzle assembly (200) has an air supply port (210), and the blower port (133) is directly opposite the air supply port (210); the number of the blower port (133), the regulating channel (310) and the air supply port (210) are the same, so that air enters the nozzle assembly (200) in sequence through the blower port (133), the regulating channel (310) and the air supply port (210).

7. The damper device for enhancing airflow according to any one of claims 1-6, characterized in that: It also includes a first sliding part (410) and a second sliding part (420); The first sliding part (410) is disposed on the adjusting plate (300); the first sliding part (410) and the second sliding part (420) are slidably engaged so that the adjusting plate (300) moves along the second sliding part (420) to approach or move away from the air outlet (133).

8. The damper device for enhancing airflow according to claim 7, characterized in that: The bottom of the first sliding part (410) is provided with a groove (411), the groove (411) is nested and connected to the outer wall of the second sliding part (420), and the groove (411) is slidably engaged with the second sliding part (420) so that the adjusting plate (300) is close to or away from the blower (133).

9. The damper device for enhancing airflow according to claim 7, characterized in that: The second sliding part (420) is disposed on the nozzle assembly (200) or the fan assembly (100).

10. The damper device for enhancing airflow according to any one of claims 1-6, characterized in that: It also includes a first guide portion (510) and a second guide portion (520); the first guide portion (510) is disposed on the adjusting plate (300), and the second guide portion (520) is disposed on the fan assembly (100) or the nozzle assembly (200); the first guide portion (510) and the second guide portion (520) are sleeved together to allow the adjusting plate (300) to move along the center line direction of the blower (133).

11. The damper device for enhancing airflow according to claim 10, characterized in that: The first guide part (510) is a through hole provided on the adjusting plate (300); the second guide part (520) is a guide post provided on the nozzle assembly (200); the guide post is sleeved and fitted with the through hole.

Images