Ignition structure, inner ring fire cover comprising ignition structure and combustor

Abstract

The ignition structure comprises an ignition needle and a discharge column, the lower surface of the discharge column faces the discharge end of the ignition needle, the lower surface of the discharge column comprises a plurality of conductive tips, and the distances from the conductive tips to the discharge end of the ignition needle are equal. The plurality of conductive tips are arranged on the lower surface of the discharge column, the greasy dirt can be shared, the greasy dirt is prevented from gathering and completely covering the lower surface of the discharge column, the greasy dirt gathered at the conductive tips easily drips under the gravity action of the greasy dirt, and therefore gathering of the greasy dirt on the lower surface of the discharge column is further reduced. The distances between the multiple conductive tips and the discharge end of the ignition needle are equal, all the conductive tips can effectively receive discharge of the ignition needle, when part of the conductive tips are covered with oil stains, other conductive tips can effectively receive discharge of the discharge end of the ignition needle, and therefore the ignition success rate is increased.

Description

Technical Field

[0001] The utility model relates to an ignition structure, an inner ring fire cover and a burner comprising the ignition structure. Background Art

[0002] Stir-frying and deep-frying are common cooking methods for users. Burners work in a heavy oil environment for a long time, which inevitably causes oil to accumulate and deposit. Over time, the fire hole is easily blocked and ignition is difficult. According to market maintenance feedback and simulation experiments, the discharge column on the fire cover is prone to condensed oil, which makes it impossible to receive the discharge of the ignition needle normally, resulting in a decrease in the ignition success rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the discharge column of the inner ring fire cover is prone to deposit condensed oil dirt, resulting in a decrease in the ignition success rate, and to provide an ignition structure, an inner ring fire cover and a burner containing the same.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] An ignition structure comprises an ignition needle and a discharge column, wherein the lower surface of the discharge column faces the discharge end of the ignition needle, and the lower surface of the discharge column comprises a plurality of conductive tips, and the distances from the plurality of conductive tips to the discharge end of the ignition needle are equal.

[0006] In this solution, multiple conductive tips are arranged on the lower surface of the discharge column, which can distribute the oil and prevent the oil from gathering and completely covering the lower surface of the discharge column. The oil gathered on the conductive tips is easy to drip under the gravity of the oil itself, thereby further reducing the accumulation of oil on the lower surface of the discharge column. In addition, the multiple conductive tips are at the same distance from the discharge end of the ignition needle, and can effectively receive the discharge of the ignition needle. When some of the conductive tips are covered with oil, the other conductive tips can effectively receive the discharge of the discharge end of the ignition needle, thereby improving the ignition success rate.

[0007] Preferably, the lower surface of the discharge column includes a plurality of arc surfaces that are concave upwards, and the plurality of arc surfaces intersect to form a plurality of conductive tips.

[0008] In this solution, multiple upwardly concave arc surfaces facilitate the oil stains on the bottom surface of the discharge column to slide and gather toward the discharge tip, and drip from the discharge tip under the action of the oil stains' own gravity, thereby reducing the long-term accumulation of a large amount of oil stains on the lower surface of the discharge column, which affects the ignition success rate.

[0009] Preferably, the central axis of the ignition needle passes through the center of the discharge column.

[0010] In this solution, the central axis of the ignition needle passes through the center of the discharge column, that is, the discharge end of the ignition needle faces the lower surface of the discharge column, thereby improving the ignition success rate.

[0011] Preferably, the lower surface of the discharge column comprises two arc-shaped grooves, and the two arc-shaped grooves are perpendicular to each other and intersect to form the conductive tip.

[0012] In this solution, the discharge tip is formed by vertically intersecting two arc-shaped grooves, which has a simple manufacturing process, low cost, and is easy to meet usage requirements.

[0013] Preferably, projections of the plurality of conductive tips on the discharge end of the ignition needle are located outside the outer peripheral surface of the discharge end.

[0014] In this solution, the projection of the conductive tip on the ignition needle discharge end in the vertical direction is located on the outer peripheral surface of the ignition needle discharge end, thereby ensuring that the oil stains dripping from the conductive tip will not cover or block the ignition needle discharge end, ensuring that the ignition success rate will not be affected.

[0015] An inner ring fire cover, characterized in that the inner ring fire cover comprises the ignition structure as described above.

[0016] In this solution, multiple conductive tips are arranged on the lower surface of the discharge column, which can distribute the oil and prevent the oil from gathering and completely covering the lower surface of the discharge column. The oil gathered on the conductive tips is easy to drip under the gravity of the oil itself, thereby further reducing the accumulation of oil on the lower surface of the discharge column. In addition, the multiple conductive tips are at the same distance from the discharge end of the ignition needle, and can effectively receive the discharge of the ignition needle. When some of the conductive tips are covered with oil, the other conductive tips can effectively receive the discharge of the discharge end of the ignition needle, thereby improving the ignition success rate.

[0017] Preferably, the inner ring fire cover includes an inner ring fire cover body and a protective umbrella, the protective umbrella is connected to the outer circumferential surface of the inner ring fire cover body and protrudes from the outer circumferential surface of the inner ring fire cover body in the radial direction of the inner ring fire cover body, and the discharge column is connected to the lower surface of the protective umbrella.

[0018] In this solution, the provision of a protective umbrella can prevent the discharge column from being exposed to the outside and avoid potential safety hazards caused by spark splashing during the discharge ignition process.

[0019] Preferably, the protective umbrella further includes a vent hole, a first end of the vent hole is arranged on the outer peripheral surface of the protective umbrella, and a second end of the vent hole is arranged on the lower surface of the protective umbrella to connect the outer side of the outer peripheral surface of the protective umbrella with the peripheral side of the discharge column.

[0020] In this solution, a vent hole is provided to connect the outside of the protective umbrella and the surrounding side of the discharge column, so as to increase the amount of air under the protective umbrella, thereby improving the ignition success rate.

[0021] Preferably, the second end is a ventilation groove, the ventilation groove is grooved upward from the lower surface of the protective umbrella, and the ventilation groove penetrates the protective umbrella along the radial direction of the inner ring fire cover body.

[0022] In this solution, ventilation grooves are provided to reduce the difficulty of supplementing secondary air caused by the provision of a protective umbrella, thereby solving the problem of flame elongation or even burning the outer ring fire cover.

[0023] A burner, characterized in that it comprises the inner ring fire cover as described above.

[0024] In this solution, multiple conductive tips are provided on the lower surface of the discharge column to distribute the oil and prevent the oil from gathering and completely covering the lower surface of the discharge column. The oil gathered on the conductive tips is easy to drip under the gravity of the oil itself, thereby further reducing the accumulation of oil on the lower surface of the discharge column. In addition, the multiple conductive tips are at the same distance from the discharge end of the ignition needle, and can effectively receive the discharge of the ignition needle. When some of the conductive tips are covered with oil, the other conductive tips can effectively receive the discharge of the discharge end of the ignition needle, thereby improving the ignition success rate. By providing a protective umbrella, the safety of use is improved, and by providing a vent to supplement the reduced air volume caused by the provision of the protective umbrella, the ignition success rate is improved.

[0025] The positive and progressive effect of the utility model is that: multiple conductive tips are arranged on the lower surface of the discharge column, which can distribute the oil and prevent the oil from gathering and completely covering the lower surface of the discharge column, and the oil gathered on the conductive tips is easy to drip under the gravity of the oil itself, thereby further reducing the accumulation of oil on the lower surface of the discharge column. In addition, the multiple conductive tips are at an equal distance from the discharge end of the ignition needle, and can effectively receive the discharge of the ignition needle. When some of the conductive tips are covered with oil, the other conductive tips can effectively receive the discharge of the discharge end of the ignition needle. Ventilation holes are arranged to connect the outer side of the protective umbrella and the surrounding side of the discharge column, increasing the amount of air under the protective umbrella, thereby improving the ignition success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional view of an inner ring fire cover according to an embodiment of the utility model.

[0027] Figure 2 This is a partial enlarged view of area A of the inner ring fire cover according to an embodiment of the utility model.

[0028] Figure 3 It is a front view of an inner ring fire cover according to an embodiment of the utility model.

[0029] Figure 4 This is a partial enlarged view of the B area of ​​the inner ring fire cover according to an embodiment of the utility model.

[0030] Figure 5This is a bottom view of an inner ring fire cover according to an embodiment of the utility model.

[0031] Figure 6 This is a partial enlarged view of the C area of ​​the inner ring fire cover according to an embodiment of the utility model.

[0032] Figure 7 It is a cross-sectional view along the DD direction of the inner ring fire cover of one embodiment of the utility model.

[0033] Description of reference numerals:

[0034] Ignition needle 100

[0035] Discharge end 101

[0036] Discharge column 200

[0037] Conductive tip 201

[0038] Curved surface 202

[0039] Umbrella 300

[0040] Ventilation hole 301

[0041] Ventilation slot 302

[0042] Inner ring fire cover body 400 DETAILED DESCRIPTION

[0043] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0044] like Figures 1 to 7 As shown, this embodiment discloses an ignition structure, including an ignition needle 100 and a discharge column 200, wherein the lower surface of the discharge column 200 faces the discharge end 101 of the ignition needle 100, and the lower surface of the discharge column 200 includes a plurality of conductive tips 201, and the distances from the plurality of conductive tips 201 to the discharge end 101 of the ignition needle 100 are equal.

[0045] The working principle of the ignition structure is that the discharge end 101 of the ignition needle 100 discharges toward the nearest conductive tip 201 to form an arc and ignite the mixture of gas and air. If it is in a high-oil scene for a long time, a large amount of oil will easily condense on the lower surface of the discharge column 200 facing the discharge end 101 of the ignition needle 100, resulting in the inability to normally receive the discharge of the discharge end 101.

[0046] In this embodiment, a plurality of conductive tips 201 are arranged on the lower surface of the discharge column 200, which can distribute the oil and prevent the oil from gathering and completely covering the lower surface of the discharge column 200. The oil gathered on the conductive tips 201 is easy to drip under the gravity of the oil itself, thereby further reducing the accumulation of oil on the lower surface of the discharge column 200. In addition, the distances between the plurality of conductive tips 201 and the discharge end 101 of the ignition needle 100 are equal, and the discharge of the ignition needle 100 can be effectively received. When some of the conductive tips 201 are covered with oil, the other conductive tips 201 can effectively receive the discharge of the discharge end 101 of the ignition needle 100, thereby improving the ignition success rate.

[0047] like Figure 3 As shown, the central axis of the ignition needle 100 passes through the center of the discharge column 200. The discharge end 101 of the ignition needle 100 faces the lower surface of the discharge column 200, thereby improving the ignition success rate.

[0048] like Figure 2 As shown, the lower surface of the discharge column 200 includes a plurality of upwardly concave arc surfaces 202, and the plurality of arc surfaces 202 intersect to form a plurality of conductive tips 201. The plurality of upwardly concave arc surfaces 202 facilitate the oil stains on the bottom surface of the discharge column 200 to slide and gather toward the discharge tip, and drip from the discharge tip under the action of the oil stains' own gravity. The oil stains gather and slide in time, thereby preventing a large amount of oil stains from being accumulated on the lower surface of the discharge column 200 for a long time, thereby affecting the ignition success rate.

[0049] like Figure 6 As shown, the arc surface 202 of the lower surface of the discharge column 200 in this embodiment includes two arc grooves, which are perpendicular to each other and intersect to form four conductive tips 201. The discharge tips are formed by the perpendicular intersection of two arc grooves, which has a simple manufacturing process, low cost, and can easily meet the use requirements.

[0050] In other alternative embodiments, the conductive tip 201 is a sharp protrusion protruding downward formed by the intersection of multiple planes at different angles. The conductive tip 201 can also be a sharp protrusion formed by the intersection of multiple spherical surfaces. The lower surface of the discharge column 200 is concave upward, and the continuous tip formed by the intersection between the lower surface and the side surface of the discharge column 200 can also serve as the conductive tip 201. It is only necessary to ensure that the distances from the multiple conductive tips 201 to the discharge end 101 are equal.

[0051] In this embodiment, the number of the conductive tips 201 is 4. In other alternative embodiments, the specific number of the conductive tips 201 is selected according to the actual situation and needs. Generally speaking, the number of the conductive tips 201 should be at least greater than 1, so that when one conductive tip 201 is attached with oil, an arc is formed between the other conductive tips 201 and the discharge end 101. However, there are special cases. When the conductive tips 201 are continuous, such as the lower surface of the discharge column 200 is concave inward, and the conductive tips 201 formed at the intersection of the lower surface edge and the side surface of the discharge column 200 are a continuous circle of conductive tips 201, a single circle can achieve the effect that when a part of the conductive tips 201 is covered with oil, the other parts of the conductive tips 201 receive the current of the discharge end 101 to form an arc. Therefore, the specific number of the conductive tips 201 is selected according to the actual situation, and is not specifically limited here.

[0052] like Figure 4 As shown, the projections of the multiple conductive tips 201 on the discharge end 101 of the ignition needle 100 are located outside the outer peripheral surface of the discharge end 101. In this embodiment, the four conductive tips 201 are all located at the edge of the cross section of the discharge column 200, the cross section circle of the discharge column 200 is concentric with the cross section circle of the discharge end 101 in the horizontal plane, and the cross section of the discharge column 200 is larger than the cross section of the discharge end 101, thereby ensuring that the oil stains dripping from the conductive tips 201 will not cover and block the discharge end 101 of the ignition needle 100, and ensuring that the ignition success rate will not be affected.

[0053] like Figures 1 to 7 As shown, this embodiment discloses an inner ring fire cover, which includes the ignition structure as above.

[0054] like Figure 1 As shown, the inner ring fire cover includes an inner ring fire cover body 400 and a protective umbrella 300. The protective umbrella 300 is connected to the outer peripheral surface of the inner ring fire cover body 400 and protrudes from the outer peripheral surface of the inner ring fire cover body 400 in the radial direction of the inner ring fire cover body 400. The discharge column 200 is connected to the lower surface of the protective umbrella 300. The provision of the protective umbrella 300 can prevent the discharge column 200 from being exposed to the outside, and avoid the electric spark splashing during the discharge ignition process to cause safety hazards. The protective umbrella 300 and the inner ring fire cover body 400 can be integrally formed to increase the structural strength, and can also be detachably connected, so that it is convenient to clean up the discharge column 200 in time after the oil is accumulated, thereby improving the ignition success rate.

[0055] like Figure 6 , Figure 7As shown, the protective umbrella 300 further includes a vent hole 301, the first end of which is arranged on the outer peripheral surface of the protective umbrella 300, and the second end of which is arranged on the lower surface of the protective umbrella 300, so as to connect the outer side of the outer peripheral surface of the protective umbrella 300 with the peripheral side of the discharge column 200. In this embodiment, the second end is a vent groove 302, the vent hole 301 is drilled inwardly from the outer peripheral surface of the protective umbrella 300 along the radial direction of the inner ring fire cover body 400, the vent groove 302 is grooved upward from the lower surface of the protective umbrella 300 and connected to the vent hole 301, and the vent groove 302 penetrates the protective umbrella 300 along the radial direction of the inner ring fire cover body 400. The vent hole 301 is arranged to connect the outer side of the protective umbrella 300 and the peripheral side of the discharge column 200, so as to increase the air volume under the protective umbrella 300, thereby improving the ignition success rate. The ventilation groove 302 is provided to reduce the difficulty of supplementing secondary air caused by the provision of the protective umbrella 300, improve the ignition success rate, and solve the problem of flame elongation or even burning the outer ring fire cover.

[0056] This embodiment also discloses a burner, which includes the inner ring fire cover as described above.

[0057] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0058] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An ignition structure, characterized in that: It comprises an ignition needle and a discharge column, wherein the lower surface of the discharge column faces the discharge end of the ignition needle, and the lower surface of the discharge column comprises a plurality of conductive tips, and the distances from the plurality of conductive tips to the discharge end of the ignition needle are equal.

2. The ignition structure according to claim 1, characterized in that: The lower surface of the discharge column includes a plurality of arc surfaces that are concave upwards, and the plurality of arc surfaces intersect to form a plurality of conductive tips.

3. The ignition structure according to claim 2, characterized in that: The center axis of the ignition needle passes through the center of the discharge column.

4. The ignition structure according to claim 1, characterized in that: The lower surface of the discharge column includes two arc-shaped grooves, and the two arc-shaped grooves are perpendicular to each other and intersect to form the conductive tip.

5. The ignition structure according to claim 1, characterized in that: The projections of the plurality of conductive tips on the discharge end of the ignition needle are located outside the outer peripheral surface of the discharge end.

6. An inner ring fire cover, characterized in that: The inner ring fire cover comprises the ignition structure as described in any one of claims 1-5.

7. The inner ring fire cover according to claim 6, characterized in that: The inner ring fire cover includes an inner ring fire cover body and a protective umbrella, the protective umbrella is connected to the outer peripheral surface of the inner ring fire cover body and protrudes from the outer peripheral surface of the inner ring fire cover body in the radial direction of the inner ring fire cover body, and the discharge column is connected to the lower surface of the protective umbrella.

8. The inner ring fire cover according to claim 7, characterized in that: The protective umbrella further comprises a vent hole, a first end of which is arranged on the outer peripheral surface of the protective umbrella, and a second end of which is arranged on the lower surface of the protective umbrella to connect the outer side of the outer peripheral surface of the protective umbrella with the peripheral side of the discharge column.

9. The inner ring fire cover according to claim 8, characterized in that: The second end is a ventilation groove, which is grooved upward from the lower surface of the protective umbrella, and the ventilation groove penetrates the protective umbrella along the radial direction of the inner ring fire cover body.

10. A burner, characterized in that: The burner comprises an inner ring fire cover as described in any one of claims 6-9.

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