Silicon carbide igniter

Abstract

The silicon carbide igniter comprises an igniter shell, a base is movably connected to the bottom of the igniter shell, a handle is rotatably mounted on one side of the igniter shell, and a silicon carbide body is slidably mounted in an inner cavity of the igniter shell; the quick release mechanism is used for quickly replacing the silicon carbide body; the quick release mechanism comprises a rack, the rack is fixedly mounted in an inner cavity of the silicon carbide body, the rack is meshed with a gear, one side of the gear is fixedly connected with a motor, and the motor is slidably mounted in an inner cavity of the igniter shell; a gear is driven by an output shaft of a motor to rotate, the gear drives a rack and a silicon carbide body to return to an inner cavity of the igniter body, when the silicon carbide body needs to be replaced, a cover plate is firstly taken out of an inner cavity of a sixth groove, and the motor and the gear can be moved out of the inner cavity of the igniter body along with the cover plate; at the moment, the silicon carbide body lacks constraint and can be moved out of the igniter body, and the purpose of replacing the silicon carbide body is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of silicon carbide ignition, in particular to a silicon carbide igniter. Background Art

[0002] A silicon carbide igniter is an ignition device that uses electric current to generate high temperature through silicon carbide material, thereby directly igniting gas or liquid fuel. Its core function is to ignite the fuel. When power is applied, current flows through the silicon carbide element (usually rod-shaped, U-shaped, threaded or tubular), using the electrical resistance of the silicon carbide material itself to generate Joule heat, causing its surface temperature to rise rapidly to a red-hot state (usually above 800°C, and even up to around 1400°C). This red-hot surface directly contacts or is close to the nozzle of the fuel (such as natural gas, liquefied petroleum gas, fuel oil, industrial waste gas, etc.). The high-temperature surface ignites the flowing fuel gas or atomized liquid fuel, initiating the combustion process.

[0003] A search revealed patent document CN12314052A, which discloses a hot surface igniter for a stove, comprising a silicon nitride ceramic body with an embedded resistive heat generation circuit. The igniter is less than 0.04 inches thick, and when powered, reaches a surface temperature exceeding 2000°F within 4 seconds to ignite cooking gases such as propane, butane, or natural gas. The disclosure also provides an example of a stove burner system that allows the igniter to remain on at a power level after ignition, which is lower than during ignition but high enough to ignite the cooking gas in the event of a flameout. The disclosure also provides an example of a burner that ignites at a low flow rate setting (e.g., a slow flame) rather than the high flow rate setting commonly used in the stove industry.

[0004] When the above design is in use, the silicon nitride ceramic body with the embedded resistive heat generation circuit is heated to ignite the silicon nitride ceramic body, thereby achieving the purpose of ignition. However, in actual use, the silicon nitride ceramic body is easily worn out, so the silicon nitride ceramic body needs to be replaced frequently, and the above design makes it difficult to replace an unusable silicon nitride ceramic body.

[0005] Therefore, a silicon carbide igniter is proposed to address the above problems. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve the problem that it is difficult to replace silicon nitride ceramics, the present invention proposes a silicon carbide igniter.

[0007] A silicon carbide igniter, comprising an igniter housing, a base movably connected to the bottom of the igniter housing, a handle rotatably mounted on one side of the igniter housing, and a silicon carbide body slidably mounted in the inner cavity of the igniter housing; It also includes a quick-release mechanism for quickly replacing the silicon carbide body; The quick release mechanism includes a rack fixedly mounted in the inner cavity of the silicon carbide body, the rack is meshed with a gear, one side of the gear is fixedly connected to a motor, and the motor is slidably mounted in the inner cavity of the igniter housing.

[0008] Preferably, four first grooves and a second groove are provided on the top of the base, and first magnets are fixedly mounted on the inner surfaces of the second grooves.

[0009] Preferably, four limit blocks and a second magnet are fixedly installed on the bottom of the igniter housing, the first groove, the second groove, the second magnet and the limit block are all chamfered, the second magnet is slidably installed on the inner surface of the first groove, and the four limit blocks are respectively slidably installed on the inner surfaces of the four first grooves.

[0010] Preferably, a third groove is provided on one side of the igniter housing, the handle is rotatably installed on the inner surface of the third groove, a fifth groove is provided on the top of the handle, a screw is installed through the top of the igniter housing, and the screw is slidably installed in the inner cavity of the fifth groove.

[0011] Preferably, two fourth grooves are provided on the top of the handle, a switch is rotatably installed on the inner surface of the fourth groove, a first spring is fixedly connected to one side of the switch, one end of the first spring is fixedly connected to the inner cavity of the fourth groove, and a sensor is fixedly installed in the inner cavity of the fourth groove.

[0012] Preferably, a sixth groove is provided on the top of the igniter housing, a cover plate is slidably mounted on the inner surface of the sixth groove, and the motor is fixedly mounted on one side of the cover plate.

[0013] Preferably, two limit plates are fixedly installed in the inner cavity of the igniter housing, and the silicon carbide body is slidably installed on the opposite surfaces of the two limit plates.

[0014] Preferably, activated carbon is fixedly installed in the inner cavity of the igniter shell, and two baffles are rotatably installed in the inner cavity of the igniter shell, a seventh groove is opened on one side of the baffle, and a roller is rotatably installed on the inner surface of the seventh groove, and a second spring is fixedly connected to one side of the baffle, and one end of the second spring is fixedly connected to the inner wall of the igniter shell.

[0015] The present invention is beneficial in that: 1. In the present invention, a staff member holds a handle to remove the four limit blocks from the inner surfaces of the four first grooves. At the same time, the second magnet is separated from the first magnet and moved out of the inner cavity of the second groove. Then the staff member presses the switch to make the switch contact with the sensor. The sensor transmits the signal to the controller, and the controller controls the motor to rotate, and the motor output shaft rotates with the gear.

[0016] 2. The present invention further uses the gear to drive the rack and the silicon carbide body to slide under the limit of two limit plates. When the silicon carbide body slides, the silicon carbide body will contact the roller. The friction of the silicon carbide body causes the roller to rotate on the inner surface of the seventh groove. As the silicon carbide body moves, the two rollers are pushed away by the silicon carbide body. Finally, the heated silicon carbide body faces the ignition position to achieve the purpose of ignition.

[0017] 3. In the present invention, the motor output shaft drives the gear to rotate, and the gear drives the rack and the silicon carbide body back to the inner cavity of the igniter body. Then the cover plate is removed from the inner cavity of the sixth groove, and the motor and the gear are also moved out of the inner cavity of the igniter body along with the cover plate. At this time, the silicon carbide body is free of constraints and can be moved out of the inner cavity of the igniter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the base installation structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the handle structure of an embodiment of the present invention; Figure 4 This is a schematic diagram of a cover plate installation structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of an igniter housing according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the roller installation structure of an embodiment of the present invention.

[0020] In the figure: 1. base; 11. first groove; 12. second groove; 13. first magnet; 2. igniter housing; 21. second magnet; 22. limit block; 23. third groove; 24. screw; 3. handle; 31. fourth groove; 32. switch; 33. first spring; 34. sensor; 35. fifth groove; 4. sixth groove; 41. cover; 42. motor; 43. gear; 44. limit plate; 45. silicon carbide body; 451. rack; 5. activated carbon; 51. baffle; 52. seventh groove; 53. roller; 54. second spring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figures 1 to 6 As shown, a silicon carbide igniter includes an igniter housing 2, wherein the bottom of the igniter housing 2 is movably connected to a base 1, a handle 3 is rotatably installed on one side of the igniter housing 2, and a silicon carbide body 45 is slidably installed in the inner cavity of the igniter housing 2; it also includes a quick-release mechanism for quickly replacing the silicon carbide body 45; the quick-release mechanism includes a rack 451, the rack 451 is fixedly installed in the inner cavity of the silicon carbide body 45, the rack 451 is engaged with a gear 43, and a motor 42 is fixedly connected to one side of the gear 43, and the motor 42 is slidably installed in the inner cavity of the igniter housing 2.

[0023] Existing cooking equipment that requires open flame heating is generally ignited by an igniter when in use. However, the igniter is easily stained with water in the kitchen, and the silicon carbide that is stained with water cannot be used. Therefore, the silicon carbide needs to be replaced in time.

[0024] When the present invention is in use, the igniter is divided into a handheld type and a type fixed at the bottom of the cooking equipment. When using the handheld igniter, the base 1 is first fixed on the wall. The staff places the igniter on one side of the base 1 after each use of the igniter, which can not only prevent the igniter from being lost due to random placement, but also keep the igniter away from water sources when not in use to prevent water from getting on the igniter and causing damage to the igniter. When in use, the output shaft of the motor 42 drives the gear 43 to rotate, and the gear 43 further drives the rack 451 to move the silicon carbide body 45. The silicon carbide body 45 moves out of the igniter body 2 and can perform ignition after heating. After use, the silicon carbide body 45 is brought back to the inner cavity of the igniter body 2 by the output shaft of the motor 42 to protect the silicon carbide body 45. When the silicon carbide body 45 needs to be replaced, the motor 42 is first slid away from the igniter body 2. At this time, the silicon carbide body 45 can be removed and the silicon carbide body 45 can be replaced.

[0025] Further, such as Figure 2 As shown, four first grooves 11 and second grooves 12 are formed on the top of the base 1, and first magnets 13 are fixedly mounted on the inner surface of the second grooves 12; Four limit blocks 22 and a second magnet 21 are fixedly installed at the bottom of the igniter housing 2. The first groove 11, the second groove 12, the second magnet 21 and the limit block 22 are all chamfered. The second magnet 21 is slidably installed on the inner surface of the first groove 11, and the four limit blocks 22 are respectively slidably installed on the inner surfaces of the four first grooves 11.

[0026] When the present invention is in use, when placing the igniter body 2, first make the four limit blocks 22 correspond to the four first grooves 11 respectively, and then insert the four limit blocks 22 into the inner surfaces of the four first grooves 11 respectively. At this time, the second magnet 21 will also enter the inner cavity of the second groove 12. At this time, the first magnet 13 and the second magnet 21 are the positive pole of the magnet and the negative pole of the magnet, respectively, and they are just adsorbed together. This can make the connection between the base 1 and the igniter body 2 more stable. At the same time, the four first grooves 11 and the four limit blocks 22 are chamfered to facilitate the staff to insert the limit blocks 22 into the inner cavity of the first groove 11.

[0027] Further, such as Figure 3 As shown, a third groove 23 is formed on one side of the igniter housing 2, and the handle 3 is rotatably mounted on the inner surface of the third groove 23. A fifth groove 35 is formed on the top of the handle 3, and a screw 24 is installed through the top of the igniter housing 2. The screw 24 is slidably mounted in the inner cavity of the fifth groove 35; Two fourth grooves 31 are formed on the top of the handle 3, and a switch 32 is rotatably installed on the inner surface of the fourth groove 31. A first spring 33 is fixedly connected to one side of the switch 32. One end of the first spring 33 is fixedly connected to the inner cavity of the fourth groove 31, and a sensor 34 is fixedly installed in the inner cavity of the fourth groove 31.

[0028] When the present invention is in use, the staff uses the silicon carbide body 45 or retracts the silicon carbide body 45, which is controlled by the two switches 32. The staff presses the two switches 32 respectively to make the switches 32 contact with the sensors 34 respectively. A controller is connected to one side of the sensor 34. The controller can control the start and rotation direction of the motor 42. The two switches 32 are pressed respectively through the two first springs 33 to touch the two sensors 34. The sensor 34 further controls the rotation direction of the motor 42 with the gear 43 to achieve the purpose of controlling the extension or retraction of the silicon carbide body 45.

[0029] Further, such as Figure 4 and Figure 5 As shown, a sixth groove 4 is formed on the top of the igniter housing 2, a cover plate 41 is slidably mounted on the inner surface of the sixth groove 4, and the motor 42 is fixedly mounted on one side of the cover plate 41; Two limiting plates 44 are fixedly mounted in the inner cavity of the igniter housing 2 , and the silicon carbide body 45 is slidably mounted on opposite surfaces of the two limiting plates 44 .

[0030] When the present invention is in use, when the silicon carbide body 45 needs to be replaced, the staff first removes the cover plate 41 from the inner cavity of the sixth groove 4. The sixth groove 4 and the cover plate 41 are both square. This can prevent the cover plate 41 from rotating in the inner cavity of the cover plate 41. When in use, the silicon carbide body 45 is clamped by two limit plates 44, which can reduce the possibility of the silicon carbide body 45 being contaminated by water. Under normal circumstances, water contacts the surface of the igniter body 2, or penetrates partially into the inner cavity of the igniter body 2. By preventing the silicon carbide body 45 from directly contacting the inner wall of the igniter body 2, the possibility of the silicon carbide body 45 not contacting water can be further increased.

[0031] Further, such as Figure 6 As shown, activated carbon 5 is fixedly installed in the inner cavity of the igniter housing 2, and two baffles 51 are rotatably installed in the inner cavity of the igniter housing 2. A seventh groove 52 is opened on one side of the baffle 51, and a roller 53 is rotatably installed on the inner surface of the seventh groove 52. A second spring 54 is fixedly connected to one side of the baffle 51, and one end of the second spring 54 is fixedly connected to the inner wall of the igniter housing 2.

[0032] When the present invention is in use, the activated carbon 5 can absorb part of the moisture in the inner cavity of the igniter body 2, reducing the humidity of the inner cavity of the igniter body 2. The two baffles 51 can reduce the area of water entering the inner cavity of the igniter body 2, further increasing the waterproofness of the igniter body 2. When the silicon carbide body 45 needs to extend out of the inner cavity of the igniter body 2, the surface of the silicon carbide body 45 will contact the roller 53, and the roller 53 rotates on the surface of the seventh groove 52. The silicon carbide body 45 will also push the baffle 51 away, so that the two baffles 51 rotate in the inner cavity of the igniter body 2. At this time, the two second springs 54 pull the two baffles 51 respectively. When the silicon carbide body 45 retracts from the outside of the igniter body 2, the two second springs 54 pull the baffle 51 back, further increasing the sealing of the inner cavity of the igniter body 2.

[0033] Working principle: First, fix the base 1 on the wall. When the igniter needs to be used, the staff holds the handle 3 to remove the four limit blocks 22 from the inner surfaces of the four first grooves 11. At the same time, the second magnet 21 will also be separated from the first magnet 13 and moved out of the inner cavity of the second groove 12. Then the staff presses the switch 32 to make the switch 32 contact with the sensor 34. The sensor 34 transmits the signal to the controller. The controller controls the motor 42 to rotate. The output shaft of the motor 42 rotates with the gear 43. The gear 43 further drives the rack 451 and the silicon carbide body 45 to slide under the limit of the two limit plates 44. When the silicon carbide body 45 slides, the silicon carbide body 45 will contact the roller 53. The friction of the silicon carbide body 45 causes the roller 53 to rotate on the inner surface of the seventh groove 52. As the silicon carbide body 45 moves, the two rollers 53 are pushed open by the silicon carbide body 45. Finally, the heated silicon carbide body 45 is facing the ignition position to achieve the purpose of ignition.

[0034] When the silicon carbide body 45 needs to be replaced, the output shaft of the motor 42 is first used to rotate the gear 43, and the gear 43 drives the rack 451 and the silicon carbide body 45 back to the inner cavity of the igniter body 2. Then the cover plate 41 is taken out from the inner cavity of the sixth groove 4, and the motor 42 and the gear 43 are also moved out of the inner cavity of the igniter body 2 together with the cover plate 41. At this time, the silicon carbide body 45 is free of restraint and can be moved out of the inner cavity of the igniter body 2.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate 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 these 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.

[0036] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A silicon carbide igniter, comprising an igniter housing (2), wherein the bottom of the igniter housing (2) is movably connected to a base (1), a handle (3) is rotatably mounted on one side of the igniter housing (2), and a silicon carbide body (45) is slidably mounted in the inner cavity of the igniter housing (2); Also included is a quick-release mechanism for quickly replacing the silicon carbide body (45); Its characteristics are: The quick-release mechanism comprises a rack (451), the rack (451) being fixedly mounted in the inner cavity of the silicon carbide body (45), the rack (451) being meshed with a gear (43), one side of the gear (43) being fixedly connected to a motor (42), and the motor (42) being slidably mounted in the inner cavity of the igniter housing (2).

2. A silicon carbide igniter according to claim 1, characterized in that: Four first grooves (11) and a second groove (12) are provided on the top of the base (1), and first magnets (13) are fixedly mounted on the inner surfaces of the second grooves (12).

3. A silicon carbide igniter according to claim 2, characterized in that: Four limiting blocks (22) and a second magnet (21) are fixedly mounted on the bottom of the igniter housing (2); the first groove (11), the second groove (12), the second magnet (21) and the limiting blocks (22) are all chamfered; the second magnet (21) is slidably mounted on the inner surface of the first groove (11); and the four limiting blocks (22) are respectively slidably mounted on the inner surfaces of the four first grooves (11).

4. A silicon carbide igniter according to claim 3, characterized in that: A third groove (23) is provided on one side of the igniter housing (2), the handle (3) is rotatably mounted on the inner surface of the third groove (23), a fifth groove (35) is provided on the top of the handle (3), a screw (24) is installed through the top of the igniter housing (2), and the screw (24) is slidably mounted in the inner cavity of the fifth groove (35).

5. The silicon carbide igniter according to claim 4, characterized in that: Two fourth grooves (31) are formed on the top of the handle (3), a switch (32) is rotatably mounted on the inner surface of the fourth groove (31), a first spring (33) is fixedly connected to one side of the switch (32), one end of the first spring (33) is fixedly connected to the inner cavity of the fourth groove (31), and a sensor (34) is fixedly mounted in the inner cavity of the fourth groove (31).

6. The silicon carbide igniter according to claim 5, characterized in that: A sixth groove (4) is provided on the top of the igniter housing (2), a cover plate (41) is slidably mounted on the inner surface of the sixth groove (4), and the motor (42) is fixedly mounted on one side of the cover plate (41).

7. The silicon carbide igniter according to claim 6, characterized in that: Two limiting plates (44) are fixedly mounted in the inner cavity of the igniter housing (2), and the silicon carbide body (45) is slidably mounted on opposite surfaces of the two limiting plates (44).

8. The silicon carbide igniter according to claim 7, characterized in that: Activated carbon (5) is fixedly installed in the inner cavity of the igniter housing (2), and two baffles (51) are rotatably installed in the inner cavity of the igniter housing (2), a seventh groove (52) is opened on one side of the baffle (51), and a roller (53) is rotatably installed on the inner surface of the seventh groove (52), and a second spring (54) is fixedly connected to one side of the baffle (51), and one end of the second spring (54) is fixedly connected to the inner wall of the igniter housing (2).

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