Igniter with uniform gas distribution and gas stove

Abstract

The utility model discloses an igniter with uniform gas distribution and a gas stove, and belongs to the technical field of household appliances. The igniter comprises a fuel gas inlet channel used for providing a flow channel for fuel gas to enter; the near-end nozzle is communicated with the fuel gas inlet channel through a near-end channel, and the near-end nozzle is the first nozzle arranged on the fuel gas inlet channel in the fuel gas inflow direction; the tail end nozzle is communicated with the fuel gas inlet channel through a tail end channel, and the tail end nozzle is the last nozzle arranged on the fuel gas inlet channel in the fuel gas inflow direction; the fuel gas inlet channel is provided with a reducing section between the near-end channel and the tail-end channel, and a fuel gas near-end blocking face is arranged at the end, facing the near-end channel, of the reducing section. According to the igniter, the nozzles at different positions of the fuel gas inlet channel can have a more uniform fuel gas distribution condition.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and particularly relates to an igniter and a gas stove with uniform gas distribution. Background Art

[0002] An igniter is a device that can provide enough energy to ignite gas and stabilize the flame in an instant. It is an essential component for kitchen appliances such as gas stoves.

[0003] The igniter has a gas delivery pipeline. In order to enable the flame to burn at most positions of the igniter and improve the uniformity of flame distribution, more than one gas nozzle is often installed on the gas delivery pipeline. After the gas is input into the delivery pipeline, it is ejected by multiple nozzles to form a relatively evenly distributed flame. However, for a gas delivery pipeline, the gas tends to flow to the nozzle at the terminal, while the gas distribution at other nozzles is relatively small. Therefore, there is still room for further optimization of the flame distribution of the igniter. Utility Model Content

[0004] To solve the above technical problems, the present invention further improves the internal structure of the existing igniter to achieve a more uniform flame distribution. One of the purposes of the present invention is to provide an igniter with uniform gas distribution, and the second purpose is to provide a corresponding gas stove.

[0005] The specific technical solution is described below:

[0006] Igniter with uniform gas distribution, including:

[0007] A gas inlet channel, used to provide a flow channel for the gas to enter;

[0008] a proximal nozzle, connected to the gas inlet channel through a proximal channel, the proximal nozzle being the first nozzle provided on the gas inlet channel along the gas inflow direction;

[0009] an end nozzle, connected to the gas inlet channel through an end channel, the end nozzle being the last nozzle provided on the gas inlet channel along the gas inflow direction;

[0010] The gas inlet channel is provided with a reduced diameter section between the proximal channel and the terminal channel, and / or the proximal channel has an expanded diameter section with a larger diameter than that of the terminal channel.

[0011] In the above technical solution, a smaller diameter pipeline is obtained by the diameter reduction section, thereby increasing the resistance of the gas to the terminal nozzle; a pipeline with a larger diameter than the terminal channel is obtained on the proximal channel by the diameter expansion section, thereby reducing the resistance of the gas to the proximal nozzle; either or both of these methods can make the gas distribution tend to flow more toward the proximal nozzle, thereby making the gas distribution of the proximal nozzle and the terminal nozzle more uniform;

[0012] Similarly, for technical solutions with more than two nozzles, either reducing the diameter or expanding the diameter, or using both of them, can also make the flame distribution more uniform.

[0013] Preferably, a proximal stop surface for gas is provided at one end of the reduced diameter section facing the proximal channel. Further preferably, the proximal stop surface is an annular surface surrounding the port of the reduced diameter section.

[0014] The proximal baffle surface allows part of the gas to flow back after collision and merge with the incoming gas, making it easier to flow into the proximal nozzle.

[0015] Preferably, the diameter-expanding section is located at the junction of the proximal channel and the gas inlet channel, that is, the gas first flows into the proximal channel through the diameter-expanding section.

[0016] Further preferably, the expansion section has an expansion area that expands outward on the proximal channel, and the expansion area has a first expansion direction. The first expansion direction shortens the path of the gas flowing into the proximal channel, making it easier for the gas to flow into the proximal channel.

[0017] Preferably, the gas inlet channel provides an inflow channel for the gas required by the outer ring of the burner.

[0018] Further preferably, the gas inlet passage is provided with two nozzles, one of which is the proximal nozzle and the other is the distal nozzle.

[0019] Preferably, a nozzle seat is further included, the gas inlet passage is arranged on one side of the nozzle seat, and the proximal nozzle and the distal nozzle are arranged on the other side of the nozzle seat.

[0020] A gas stove having the igniter described in any one of the above technical solutions.

[0021] In summary, the technical solution of the present invention has the following main beneficial effects:

[0022] Compared with the prior art, in the technical solution of the present invention, the gas distribution tends to flow more toward the proximal nozzle by increasing the resistance of the gas flowing to the terminal nozzle or reducing the resistance of the gas flowing to the proximal nozzle, or by both, thereby making the gas distribution more uniform.

[0023] Regarding the technical solution of reducing the diameter and increasing the resistance of the gas to the end nozzle, the proximal baffle surface can allow part of the gas to flow back after collision and merge with the incoming gas, making it easier to flow into the proximal nozzle.

[0024] Regarding the technical solution of expanding the diameter to reduce the resistance of the gas flowing to the proximal nozzle, the expanded diameter area has a first expanded diameter direction, which shortens the path of the gas flowing into the proximal channel and makes it easier for the gas to flow into the proximal channel.

[0025] Further or more detailed beneficial effects will be described in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 1 is a schematic diagram of the three-dimensional structure of the surface of the igniter in the embodiment;

[0027] Figure 2 2 is a schematic diagram of the three-dimensional structure of the back side of the igniter in the embodiment;

[0028] Figure 3 is a schematic cross-sectional structural diagram of the igniter along the gas inlet passage in Example 1;

[0029] Figure 4 is a schematic diagram of a partial cross-sectional structure of the igniter in Example 2;

[0030] Figure 5 It is a partial cross-sectional structural diagram of the igniter in Example 3.

[0031] Reference numerals:

[0032] 1: Gas inlet channel, 1.1: Reduced diameter section, 1.2: Proximal baffle, 2: Proximal nozzle, 2.1: Proximal channel, 2.11: Expanded diameter section, 2.11a: Expanded diameter area, 3: End nozzle, 3.1: End channel, 4: Nozzle seat, 5: Central gas inlet channel, 6: Central nozzle. DETAILED DESCRIPTION

[0033] The present invention will be further explained with reference to the following embodiments:

[0034] The core technical problem faced by the technical solution of the embodiment of the present application comes from the inventor's accurate understanding of the existing technology. Therefore, how to make the gas distribution of the igniter more uniform is a technical problem that the inventor urgently needs to solve.

[0035] It should be noted that the embodiments do not constitute a limitation on the scope of protection of the claims of the present utility model. Based on the technical concepts provided / proven by the embodiments, all technical solutions that can be reasonably anticipated by technical personnel in the relevant technical field should be included in the scope of protection of the claims of the present utility model.

[0036] The embodiments are described in detail as follows:

[0037] Please refer to the attached Figures 1-2 , the igniter has a nozzle seat 4, Figure 1 Shown is a schematic structural diagram of the surface perspective of the nozzle holder 4, Figure 2 The figure shows a structural diagram of the nozzle holder 4 from the back side. The igniter described in the embodiment includes two air inlet channels, which are arranged on the back side of the nozzle holder 4, namely a central air inlet channel 5 for the combustion of the middle flame of the burner and a gas air inlet channel 1 for the combustion of the outer ring flame of the burner. A central nozzle 6 is arranged at the end of the central air inlet channel 5, and the gas air inlet channel 1 is sequentially provided with a proximal nozzle 2 and a terminal nozzle 3 along the direction of gas flow. The central nozzle 6, the proximal nozzle 2 and the terminal nozzle 3 are all arranged on the surface of the nozzle holder 4.

[0038] Gas generally tends to flow to the final nozzle 3, while the gas distribution at the proximal nozzle 2 is relatively small, resulting in differences in gas distribution around the outer ring of the burner, and thus uneven distribution of firepower. Specific solutions to this problem are shown in the following embodiments:

[0039] Example 1 :

[0040] Please refer to the attached Figures 1 to 3 In this embodiment, the diameter of the proximal passage 2.1 where the proximal nozzle 2 is located is enlarged to form an expanded diameter section 2.11. The diameter of the expanded diameter section 2.11 is made larger than the diameter of the terminal passage 3.1 where the terminal nozzle 3 is located. This reduces the resistance of the gas entering the proximal nozzle 2 when flowing through the proximal passage 2.1, allowing more gas to flow into the proximal nozzle 2, thereby achieving more uniform gas distribution.

[0041] Reference Attachment Figure 3 In a preferred embodiment of the present invention, the expanded diameter section 2.11 is located at the junction of the proximal channel 2.1 and the gas inlet channel 1, so that the gas first flows into the proximal channel 2.1 through the expanded diameter section 2.11, thereby providing space for the gas to flow into the proximal channel 2.1 immediately.

[0042] Example 2 :

[0043] Please refer to the attached Figures 1-2 4. In this embodiment, the inner diameter of the gas inlet channel 1 between the proximal channel 2.1 and the terminal channel 3.1 is reduced to form a reduced diameter section 1.1, thereby increasing the resistance of the gas flowing into the terminal nozzle 3, allowing more gas to flow into the proximal nozzle 2, thereby obtaining a more uniform gas distribution.

[0044] Reference Attachment Figure 4A preferred implementation of this embodiment is as follows: an annular proximal stop surface 1.2 is provided at the end of the reduced diameter section 1.1 facing the proximal channel 2.1. Part of the gas collides with the proximal stop surface 1.2 during flow and then flows back to merge with the incoming gas, thereby slowing down the inertia of the gas flowing toward the terminal nozzle 3, thereby making it easier for the gas to flow into the proximal nozzle 2.

[0045] Example 3 :

[0046] Please refer to the attached Figures 1-2 5. The difference between this embodiment and embodiment 2 is that: an expanded diameter section 2.11 is provided at the junction of the proximal channel 2.1 and the gas inlet channel 1, thereby reducing the resistance of the gas entering the proximal nozzle 2 and increasing the resistance of the gas flowing into the terminal nozzle 3, so as to obtain a more uniform gas distribution.

[0047] Reference Attachment Figure 5 In a preferred embodiment of this embodiment, the expanded diameter section 2.11 includes an outwardly expanding expanded diameter region 2.11a. The outward expansion direction of the expanded diameter region 2.11a is opposite to the flow direction of the gas in the gas inlet passage 1. This outward expansion direction shortens the path of the gas flowing into the proximal passage 2.1, making it easier for the gas to flow into the proximal passage 2.1.

[0048] Example 4 :

[0049] A gas stove uses the igniter mentioned in any of the above embodiments to obtain a uniformly distributed flame.

[0050] The values of the diameter expansion and diameter reduction in Examples 1 to 3 can be adjusted by those skilled in the art according to actual conditions and will not be described in detail in the examples.

[0051] Throughout this specification, reference to terms such as "embodiment," "basic embodiment," "preferred embodiment," "other embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0052] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0053] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An igniter with uniform gas distribution, characterized in that: Includes: A gas inlet channel (1) for providing a flow channel for gas to enter; A proximal nozzle (2) is connected to the gas inlet channel (1) via a proximal channel (2.1), and the proximal nozzle (2) is the first nozzle provided on the gas inlet channel (1) along the gas inflow direction; A terminal nozzle (3) is connected to the gas inlet channel (1) through a terminal channel (3.1), and the terminal nozzle (3) is the last nozzle provided on the gas inlet channel (1) along the gas inflow direction; The gas inlet channel (1) is provided with a reduced diameter section (1.1) between the proximal channel (2.1) and the terminal channel (3.1), and / or the proximal channel (2.1) has an expanded diameter section (2.11) having a larger diameter than the terminal channel (3.1).

2. The igniter according to claim 1, characterized in that: A proximal gas blocking surface (1.2) is provided at one end of the reduced diameter section (1.1) facing the proximal channel (2.1).

3. The igniter according to claim 2, characterized in that: The proximal end blocking surface (1.2) is an annular surface surrounding the port of the reduced diameter section (1.1).

4. The igniter according to claim 1, characterized in that: The diameter expansion section (2.11) is located at the junction of the proximal channel (2.1) and the gas inlet channel (1).

5. The igniter according to claim 4, characterized in that: The expansion section (2.11) has an expansion area (2.11a) that expands outward on the proximal channel (2.1), and the expansion area (2.11a) has a first expansion direction, which shortens the path of the gas flowing into the proximal channel (2.1).

6. The igniter according to claim 1, characterized in that: The gas inlet channel (1) provides an inflow channel for the gas required by the outer ring of the burner.

7. The igniter according to claim 6, characterized in that: The number of nozzles provided in the gas inlet passage (1) is two, one of which is the proximal nozzle (2) and the other is the distal nozzle (3).

8. The igniter according to any one of claims 1 to 7, characterized in that: It also includes a nozzle seat (4), the gas intake passage (1) is arranged on one side of the nozzle seat (4), and the proximal nozzle (2) and the distal nozzle (3) are arranged on the other side of the nozzle seat (4).

9. Gas stove, characterized by: A device comprising the igniter according to any one of claims 1 to 8.

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