An updraft burner head and a burner and a cooktop using the same

Abstract

The utility model provides a kind of upper air inlet furnace head, including fire divider seat, fire divider, main ejector pipe, vice ejector pipe, air inlet cavity seat, main gas nozzle and vice gas nozzle;The utility model further provides a kind of burner and cooking utensil using the above-mentioned upper air inlet furnace head.The utility model interval is front air inlet cavity and rear air inlet cavity in air inlet cavity seat, and the gas that main gas nozzle and vice gas nozzle emit is in two separate gas mixing spaces, and after mixing, it is guided to fire divider seat, fire divider by main ejector pipe and vice ejector pipe respectively, main ejector gas mixing area and vice ejector gas mixing area are separated, air mixing is sufficient, air mixing efficiency is high, and the airflow of main gas nozzle and vice gas nozzle does not interfere with each other, and the ejector efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to an upper air intake stove and a burner and stove using the stove. Background Technology

[0002] In the gas stove industry, top-intake burners have become the market mainstream due to their structural design advantages (such as convenient maintenance, easy cleaning, and independence from the opening and closing of cabinet doors under the stove). However, existing top-intake burners still face significant technical bottlenecks in combustion efficiency and primary air injection performance, specifically manifested in the following issues:

[0003] 1. Insufficient primary air supply

[0004] Traditionally, the air inlet of the burner can only be located below the flame distributor, which limits the length of the burner head injector. Although attempts have been made to improve the primary air injection capacity by increasing the number of main flame injectors (usually 2-4), space constraints prevent the optimization of the injector cross-sectional area and length, making it difficult to meet the requirements for complete combustion in terms of air mixing efficiency.

[0005] 2. Interference with airflow from multiple nozzles

[0006] The layout of the main flame nozzle and the secondary flame nozzle is too compact, which causes airflow interference during the single air injection process. This interference not only reduces the injection efficiency, but also causes poor flame stability and incomplete combustion, thereby increasing CO emissions and affecting energy efficiency and safety.

[0007] 3. Structural design contradictions

[0008] Existing solutions require balancing the number and layout of ejector tubes within a limited space. However, increasing the number of ejector tubes exacerbates airflow conflicts, while reducing the number leads to insufficient air supply. Furthermore, the location of the air inlet below the igniter restricts the optimization space for airflow paths, further limiting improvements in combustion performance.

[0009] Against this background, the present invention proposes a new technical solution. Utility Model Content

[0010] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a top-intake burner head and a burner and stove using the same burner head, and the technical solution adopted is as follows:

[0011] A top-inlet burner head includes a burner holder, a burner mounted on the burner holder, a main injector, a secondary injector, an air inlet chamber seat, a main gas nozzle, and a secondary gas nozzle. The tail ends of the main and secondary injectors are connected to the burner, and their head ends are connected to the air inlet chamber seat. The air inlet chamber seat includes a forward air chamber and a rear air inlet chamber spaced apart. An air inlet is provided at the top of the air inlet seat, and the air inlet communicates with both the forward and rear air inlets. The head end of the secondary injector is connected to the tail end of the rear air inlet chamber, and the head end of the main injector is connected to the tail end of the forward air chamber, and the main gas nozzle is connected to the head of the forward air chamber, and the secondary gas nozzle is connected to the head of the rear air inlet chamber, and the main gas nozzle is connected to the head of the rear air inlet chamber.

[0012] According to an embodiment of the present invention, an upper air intake burner head is provided in the air intake cavity seat, which divides the internal space into a front air intake cavity and a rear air intake cavity; the head end of the main ejector tube extends into the rear air intake cavity, passes through the middle partition, and communicates with the front air intake cavity; the auxiliary gas nozzle extends into the front air intake cavity, passes through the middle partition, and communicates with the rear air intake cavity.

[0013] According to an embodiment of the present invention, an upper air intake furnace head includes a pair of main ejector tubes and a single auxiliary ejector tube. The tail ends of the pair of main ejector tubes and the auxiliary ejector tube are connected to the bottom of the burner seat, and the pair of main ejector tubes are respectively disposed on both sides of the bottom of the burner seat, while the auxiliary ejector tube is disposed in the middle of the pair of main ejector tubes.

[0014] According to an embodiment of the present invention, an upper air intake burner head has one auxiliary gas nozzle and a pair of main gas nozzles; the auxiliary gas nozzle extends through the front plate of the air intake chamber seat to the front air chamber, passes through the middle partition, and communicates with the rear air intake chamber; the pair of main gas nozzles are respectively disposed on both sides of the front plate of the air intake chamber seat and are connected to the main gas inlet through the main gas inlet pipe.

[0015] According to an embodiment of the present invention, an upper-inlet furnace head includes a secondary gas outlet chamber disposed in the middle and a pair of main gas outlet chambers disposed on both sides of the secondary gas outlet chamber; the secondary gas outlet chamber and the main gas outlet chambers are vertically disposed on the burner; the main ejector tube and the secondary ejector tube are respectively horizontally connected to the bottom of the burner seat through the main mixing chamber and the secondary mixing chamber disposed at the bottom of the burner seat; the secondary gas outlet chamber is vertically connected to the secondary mixing chamber, and the main gas outlet chamber is vertically connected to the main mixing chamber; the secondary gas outlet chamber has a secondary mixing outlet at its top, and the main gas outlet chamber has a main mixing outlet at its top.

[0016] According to an embodiment of the present invention, in an upper air intake furnace head, both the main mixing chamber and the auxiliary mixing chamber are guide volute structures with inclined guide cone-shaped slopes.

[0017] According to an embodiment of the present utility model, in a top-inlet furnace head, the pair of main air outlet chambers are separated by a guide plate, and the guide plate has a guide slope that slopes from bottom to top on both sides.

[0018] According to an embodiment of the present invention, an upper air intake stove head is provided with a cover plate above the front part of the air intake cavity seat. The cover plate is connected to the front plate and the middle partition plate of the air intake cavity seat to cover the air intake cavity.

[0019] A burner comprising an upper air intake burner head as described in any one of the above.

[0020] A stove, comprising the aforementioned burner.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] In this invention, the air inlet chamber is divided into a front air inlet chamber and a rear air inlet chamber. The gas ejected from the main gas nozzle and the auxiliary gas nozzle is in two separate mixing spaces. After mixing, the gas is directed to the ignition distributor seat and the ignition distributor through the main ejector tube and the auxiliary ejector tube, respectively. The main ejector mixing area and the auxiliary ejector mixing area are separated, resulting in sufficient air mixing and high air mixing efficiency. Furthermore, the airflow from the main gas nozzle and the auxiliary gas nozzle does not interfere with each other, resulting in high ejection efficiency. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a perspective view of some embodiments of the top-inlet furnace head of this utility model. Figure 1 ;

[0025] Figure 2 This is a perspective view of some embodiments of the top-inlet furnace head of this utility model. Figure 2 ;

[0026] Figure 3 This is a perspective view of some embodiments of the top-inlet furnace head of this utility model. Figure 3 ;

[0027] Figure 4 This is a perspective view of some embodiments of the top-inlet furnace head of this utility model. Figure 4 ;

[0028] Figure 5 This is a schematic diagram of the structure of some embodiments of the top-inlet furnace head of this utility model;

[0029] Figure 6 This is a cross-sectional view of some embodiments of the top-inlet furnace head of this utility model;

[0030] Figure 7 This is a perspective view of some embodiments of the main gas nozzle and auxiliary gas nozzle in the top-inlet furnace head of this utility model.

[0031] Explanation of key component symbols:

[0032] 10. Flame distributor seat; 11. Main mixing chamber; 12. Secondary mixing chamber; 13. Guide volute; 20. Flame distributor; 21. Secondary exhaust chamber; 22. Main exhaust chamber; 23. Guide plate; 30. Main injector; 40. Secondary injector; 50. Main gas nozzle; 60. Secondary gas nozzle; 70. Middle partition; 71. Front air chamber; 72. Rear air chamber; 80. Air inlet; 81. Cover plate. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0034] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0035] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.

[0036] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0037] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0038] This utility model provides a top-inlet stove head, such as Figure 1 , 2As shown in Figures 3, 4, and 5, the device includes a flame spreader base 10, a flame spreader 20 mounted on the flame spreader base 10, a main injector tube 30, a secondary injector tube 40, an air inlet chamber base, a main gas nozzle 50, and a secondary gas nozzle 60. The tail ends of the main injector tube 30 and the secondary injector tube 40 are connected to the flame spreader 20, and their head ends are connected to the air inlet chamber base. The air inlet chamber base includes a forward air inlet chamber 71 and a rear air inlet chamber 72 spaced apart. An air inlet 80 is provided at the top of the air inlet chamber base, and the air inlet 80 communicates with the forward air inlet chamber 71 and the rear air inlet chamber 72. The head end of the auxiliary ejector tube 40 is connected to the tail end of the rear air intake chamber 72 and communicates with the rear air intake chamber 72; the head end of the main ejector tube 30 is connected to the tail end of the front air intake chamber 71 and communicates with the front air intake chamber 71; the main gas nozzle 50 is connected to the head of the front air intake chamber 71 and communicates with the front air intake chamber 71; the auxiliary gas nozzle 60 is connected to the head of the rear air intake chamber 72 and communicates with the rear air intake chamber 72; a cover plate 81 is provided above the front part of the air intake chamber seat, and the cover plate 81 is connected to the front plate and the middle partition plate 70 of the air intake chamber seat to cover the front air intake chamber 71.

[0039] During use, air above the cooktop panel enters the front air chamber 71 and rear air chamber 72 of the air intake chamber seat through the air inlet 80. The main gas nozzle 50 introduces gas into the front air chamber 71 to mix with air, and after mixing, it enters the main injector tube 30 and is discharged to the burner seat 10 and burner 20 through the main injector tube 30. At the same time, the auxiliary gas nozzle 60 introduces gas into the rear air chamber 72 to mix with air, and after mixing, it enters the auxiliary injector tube 40 and is discharged to the burner seat 10 and burner 20 through the auxiliary injector tube 40.

[0040] In this invention, the air inlet chamber is divided into a front air inlet chamber 71 and a rear air inlet chamber 72. The gas ejected from the main gas nozzle 50 and the auxiliary gas nozzle 60 is in two separate mixing spaces. After mixing, the gas is directed to the igniter seat 10 and the igniter 20 respectively through the main ejector tube 30 and the auxiliary ejector tube 40. The main ejector mixing area and the auxiliary ejector mixing area are separated, resulting in sufficient air mixing and high air mixing efficiency. Furthermore, the airflow of the main gas nozzle 50 and the auxiliary gas nozzle 60 does not interfere with each other, resulting in high ejection efficiency.

[0041] Specifically, in some embodiments of this utility model, such as Figure 1 , 2As shown in Figures 3, 5, and 7, a partition 70 is provided within the partition 70, dividing its internal space into a front air intake chamber 71 and a rear air intake chamber 72. The head end of the main injector 30 extends into the rear air intake chamber 72, passing through the partition 70 and communicating with the front air intake chamber 71. The auxiliary gas nozzle 60 extends into the front air intake chamber 71, passing through the partition 70 and communicating with the rear air intake chamber 72. After being ejected from the main gas nozzle 50, the gas enters the front air intake chamber 71, and after mixing, it directly enters the main injector 30 from the front air intake chamber 71. After being ejected from the auxiliary gas nozzle 60, the gas enters the rear air intake chamber 72, and after mixing, it directly enters the auxiliary injector 40 from the rear air intake chamber 72. The gas is transported in a straight line from ejection, mixing, and injection, resulting in high injection efficiency.

[0042] In some embodiments of this utility model, such as Figure 1 , 2 As shown in Figures 3, 5, and 7, the main ejector tube 30 includes a pair, and the auxiliary ejector tube 40 is single. The tail ends of the pair of main ejector tubes 30 and the auxiliary ejector tube 40 are connected to the bottom of the ignition distributor base 10. The pair of main ejector tubes 30 are respectively located on both sides of the bottom of the ignition distributor base 10, and the auxiliary ejector tube 40 is located in the middle of the pair of main ejector tubes 30. There is one auxiliary gas nozzle 60, and a pair of main gas nozzles 50. The auxiliary gas nozzle 60 extends through the front plate of the air inlet chamber base into the forward air chamber 71, passes through the middle partition 70, and communicates with the rear air inlet chamber 72. The pair of main gas nozzles 50 are respectively located on both sides of the front plate of the air inlet chamber base and are connected to the main gas inlet through the main gas inlet pipe.

[0043] In this embodiment, both the main ejector tube 30 and the main gas nozzle 50 are a pair. The pair of main gas nozzles 50 are respectively located on both sides of the air inlet chamber seat. The gas enters into the two sides of the forward air chamber 71 in two streams, which effectively avoids airflow interference between the two gas streams. After mixing, the gas is guided to the igniter seat 10 and the igniter 20 by the two main ejector tubes 30 respectively. There is a sufficient distance between the two main ejector tubes 30, which effectively reduces airflow interference when ejecting air. In addition, the main ejector tube 30 and the auxiliary ejector tube 40 are independently separated, which effectively avoids interference between the main ejector airflow and the auxiliary ejector airflow.

[0044] In some embodiments of this utility model, such as Figure 1 , 2As shown in Figures 3 and 6, the flame distributor 20 includes a secondary exhaust chamber 21 located in the middle and a pair of main exhaust chambers 22 located on both sides of the secondary exhaust chamber 21. The secondary exhaust chamber 21 and the main exhaust chambers 22 are vertically arranged on the flame distributor 20. The main ejector tube 30 and the secondary ejector tube 40 are horizontally connected to the bottom of the flame distributor base 10 through the main mixing chamber 11 and the secondary mixing chamber 12 located at the bottom of the flame distributor base 10, respectively. The secondary exhaust chamber 21 is vertically connected to the secondary mixing chamber 12, and the main exhaust chamber 22 is vertically connected to the main mixing chamber 11. The secondary exhaust chamber 21 has a secondary mixing outlet at its top, and the main exhaust chamber 22 has a main mixing outlet at its top.

[0045] The mixed gas flow in the main ejector tube 30 first enters laterally into the main mixed gas chamber 11 at the bottom of the igniter base 10, then flows vertically upward to the main outlet chamber 22, and finally flows out from the main mixed gas outlet. The mixed gas flow in the auxiliary ejector tube 40 first enters laterally into the auxiliary mixed gas chamber 12 at the bottom of the igniter base 10, then flows vertically upward to the auxiliary outlet chamber 21, and finally flows out from the auxiliary mixed gas outlet. Among them, the mixed gas flow in the pair of main outlet chambers 22 flows upward from both sides of the auxiliary outlet chamber 21.

[0046] To prevent the mixed airflow in the secondary ejector tube 40 from impacting the secondary mixing chamber 12 and then flowing upwards to the secondary outlet chamber 21, and to prevent the mixed airflow in the main ejector tube 30 from impacting the main mixing chamber 11 and then flowing upwards to the main outlet chamber 22, in some embodiments of this utility model, such as Figure 4 , 6 As shown, both the main mixing chamber 11 and the auxiliary mixing chamber 12 are flow-guiding volute structures with inclined guide cone-shaped slopes, i.e., flow-guiding volutes 13. The flow-guiding volute structure can effectively guide the airflow in an inclined arc at this corner, effectively avoiding the pressure loss caused by the collision of the mixed airflow at the corner, which would lead to a decrease in ejection capability.

[0047] In some embodiments of this utility model, such as Figure 1 , 2 As shown in Figure 3, the pair of main exhaust chambers are separated by a guide plate 23. The guide plate 23 has a guide slope that slopes from bottom to top on both sides. The guide plate 23 causes the two main mixed airflows to converge after flowing out of the two main exhaust chambers, so that the two mixed airflows mix in the same direction, effectively avoiding the pressure loss caused by the collision of the two mixed airflows at the outlet, which would lead to a decrease in ejection capacity.

[0048] This utility model also provides a burner and stove using the above-mentioned top-inlet burner head.

[0049] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A top-intake furnace head, characterized in that, It includes a flame distributor base (10), a flame distributor (20) mounted on the flame distributor base (10), a main ejector tube (30), a secondary ejector tube (40), an air inlet chamber base, a main gas nozzle (50), and a secondary gas nozzle (60); the tail ends of the main ejector tube (30) and the secondary ejector tube (40) are connected to the flame distributor (20), and the head ends are connected to the air inlet chamber base; the air inlet chamber base includes a forward air inlet chamber (71) and a rear air inlet chamber (72) spaced apart, and the air inlet chamber base has an air inlet (80) at its top. (80) is connected to the front air chamber (71) and the rear air chamber (72); the head end of the auxiliary ejector tube (40) is connected to the tail end of the rear air chamber (72) and is connected to the rear air chamber (72); the head end of the main ejector tube (30) is connected to the tail end of the front air chamber (71) and is connected to the front air chamber (71); the main gas nozzle (50) is connected to the head of the front air chamber (71) and is connected to the front air chamber (71); the auxiliary gas nozzle (60) is connected to the head of the rear air chamber (72) and is connected to the rear air chamber (72).

2. The top-inlet furnace head according to claim 1, characterized in that, A partition (70) is provided in the air inlet chamber to divide its internal space into a front air inlet chamber (71) and a rear air inlet chamber (72); the head end of the main ejector tube (30) extends into the rear air inlet chamber (72), passes through the partition (70), and communicates with the front air inlet chamber (71); the auxiliary gas nozzle (60) extends into the front air inlet chamber (71), passes through the partition (70), and communicates with the rear air inlet chamber (72).

3. The top-inlet furnace head according to claim 2, characterized in that, The main ejector tubes (30) include a pair, and the auxiliary ejector tube (40) is one. The tail ends of the pair of main ejector tubes (30) and the auxiliary ejector tube (40) are connected to the bottom of the fire spreader base (10). The pair of main ejector tubes (30) are respectively located on both sides of the bottom of the fire spreader base (10), and the auxiliary ejector tube (40) is located in the middle of the pair of main ejector tubes (30).

4. The top-inlet furnace head according to claim 3, characterized in that, There is one auxiliary gas nozzle (60) and a pair of main gas nozzles (50); the auxiliary gas nozzle (60) extends through the front plate of the air inlet seat to the front air inlet (71), passes through the middle partition (70), and communicates with the rear air inlet (72); the pair of main gas nozzles (50) are respectively located on both sides of the front plate of the air inlet seat and are connected to the main gas inlet through the main gas inlet pipe.

5. The top-inlet furnace head according to claim 3, characterized in that, The ignition distributor (20) includes a secondary exhaust chamber (21) located in the middle and a pair of main exhaust chambers (22) located on both sides of the secondary exhaust chamber (21). The secondary exhaust chamber (21) and the main exhaust chambers (22) are vertically arranged on the ignition distributor (20). The main ejector tube (30) and the secondary ejector tube (40) are horizontally connected to the bottom of the ignition distributor base (10) through the main mixing chamber (11) and the secondary mixing chamber (12) located at the bottom of the ignition distributor base (10), respectively. The secondary exhaust chamber (21) is vertically connected to the secondary mixing chamber (12), and the main exhaust chamber (22) is vertically connected to the main mixing chamber (11). The secondary exhaust chamber (21) has a secondary mixing outlet at its top, and the main exhaust chamber (22) has a main mixing outlet at its top.

6. The top-inlet furnace head according to claim 5, characterized in that, Both the main mixing chamber (11) and the secondary mixing chamber (12) are flow-guiding spiral structures with inclined flow-guiding conical slopes.

7. The top-inlet furnace head according to claim 5, characterized in that, The pair of main air outlet chambers are separated by a guide plate (23), and the guide plate (23) has a guide slope that slopes from bottom to top on both sides.

8. The top-inlet furnace head according to claim 2, characterized in that, A cover plate (81) is provided above the front part of the air inlet cavity seat. The cover plate (81) is connected to the front plate and the middle partition plate (70) of the air inlet cavity seat to cover the front air cavity (71).

9. A burner, characterized in that, It includes the top-inlet furnace head as described in any one of claims 1 to 8.

10. A stove, characterized in that, It includes the burner as described in claim 9.

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