WO2017008636A1 - 便携式防爆燃气灶具 - Google Patents

便携式防爆燃气灶具 Download PDF

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Publication number
WO2017008636A1
WO2017008636A1 PCT/CN2016/087544 CN2016087544W WO2017008636A1 WO 2017008636 A1 WO2017008636 A1 WO 2017008636A1 CN 2016087544 W CN2016087544 W CN 2016087544W WO 2017008636 A1 WO2017008636 A1 WO 2017008636A1
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Prior art keywords
gas
portable explosion
gas tank
heat
proof
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PCT/CN2016/087544
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English (en)
French (fr)
Inventor
丁海国
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脉鲜金属（大连）有限公司
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Application filed by 脉鲜金属（大连）有限公司 filed Critical 脉鲜金属（大连）有限公司
Priority to AU2016293230A priority Critical patent/AU2016293230C1/en
Publication of WO2017008636A1 publication Critical patent/WO2017008636A1/zh
Priority to AU2017101755A priority patent/AU2017101755B4/en
Priority to AU2019100690A priority patent/AU2019100690B4/en
Priority to AU2019101377A priority patent/AU2019101377B4/en
Priority to AU2020250316A priority patent/AU2020250316B2/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/14—Stoves or ranges for gaseous fuels with special adaptation for travelling, e.g. collapsible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/02—Stoves or ranges for gaseous fuels with heat produced solely by flame
    • F24C3/027—Ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/10—Arrangement or mounting of ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices

Definitions

  • the invention relates to the technical field of gas cookers, in particular to a portable explosion-proof gas cooker.
  • the distance between the burning head and the gas tank is too short, and the outer diameter of the windshield is too small, so that the heat of the burning head flame and the roasting The disk temperature is too high.
  • the heat of heat conduction is transmitted to the gas tank through the furnace shell and the gas tank cover of the gas stove, so that the temperature of the gas tank is too high, and the safety device of the gas cooker is activated to return the gas tank to the original position.
  • the gas tank is returned to the original position, the heat generated by the combustion head and the baking tray to the gas tank is too high, and the gas tank may cause an explosion hazard, which is very dangerous.
  • ZL201420766905.5 discloses a portable gas cooker comprising an upper panel, a combustion head, a knob, a furnace foot, a wind screen, a chassis, a partition, a rear panel, a front panel, a gas tank, a regulator, a temperature sensor, and an ignition a needle, a heat conducting plate and a liquid receiving tray;
  • the burning head is mounted on the chassis
  • the furnace foot and the wind screen are respectively mounted on the liquid receiving tray
  • the liquid receiving tray is mounted on the upper plate
  • the gas tank is connected with the regulator
  • the partition plate Connected to the upper panel, the front panel and the rear panel respectively, the adjuster is fixed on the partition plate
  • the knob is mounted on the adjuster
  • the heat dissipation hole is arranged in the middle of the upper panel
  • the heat dissipation hole is arranged on the rear panel
  • the ignition needle is arranged on the combustion head
  • the temperature sensor is mounted on the chassis
  • the heat conducting plate is attached to the combustion head.
  • This application does not disclose the minimum distance between the burner and the ignition device, so the cost of the produced gas cooker cannot be guaranteed to be minimized; although the heat sink holes are disclosed on the gas tank cover, the size and shape of the heat dissipation holes are disclosed. The position and the degree of heat dissipation can be described in detail. According to the drawing, it can be seen that the heat dissipation hole is opened on one side of the gas canister cover, and the heat dissipation cannot be effectively performed. Moreover, this patent does not disclose any insulation other than the heat dissipation hole. The structure or method of the heat and or cooling device. In summary, the invention disclosed in this patent cannot reduce the production cost of the cooker, nor can it effectively achieve a good heat dissipation effect.
  • the new EU standard requires gas cylinders not to exceed 50 degrees Celsius after 90 minutes of heating. Therefore, how to save costs and enhance the heat insulation and heat dissipation effect of the cooker to meet international standards has become a problem that the gas cooker has become an urgent problem for designers of portable cookers.
  • the object of the present invention is to provide a portable explosion-proof gas cooker which can be placed outdoors, especially in a place like a beach, and which has good heat insulation and heat dissipation effects and is safer to heat.
  • a portable explosion-proof gas cooker comprising a furnace shell, a combustion head, an ignition device, a gas tank bearing portion, and a heat insulating and cooling device; the combustion head is mounted on the furnace shell The ignition device is connected to the combustion head, the gas cylinder carrying portion is connected to the furnace shell, the heat insulating and cooling device is located on the furnace shell, and the combustion head is centered to the gas The distance from the center of the tank chamber is 179 mm or more.
  • the portable explosion-proof gas cooktop further comprises a gas canister cover, the gas canister cover being external to the gas canister bearing portion.
  • the ignition device comprises a regulator, a temperature sensor and an ignition needle; the regulator is mounted and fixed in the gas cylinder carrying portion, the temperature sensor is fixedly mounted at the bottom of the furnace chamber, and the ignition needle is set At the lower end of the burner.
  • the portable explosion-proof gas cooktop further comprises a windshield; the windshield has an outer diameter of at least 186 mm.
  • the portable explosion-proof gas cooktop further comprises four feet, the four feet being connected to a lower part of the furnace shell; and the lower part of the furnace shell is not provided with an opening.
  • the thermal insulation and or cooling device comprises an insulating sticker, the thermal barrier being located inside the top of the can.
  • the heat insulating and or cooling device comprises a gas canister heat sink opening at the top of the gas canister.
  • the air can cover heat dissipation opening is in the shape of a hole or a grid.
  • the heat insulating and cooling device comprises an elongated heat dissipation opening in the direction of the air flow disposed at the side of the gas canister cover.
  • the invention also protects a portable explosion-proof gas cooker, comprising a furnace shell, a combustion head, an ignition device, a gas tank bearing portion, a gas canister cover, and a heat insulation and or cooling device;
  • the combustion head is installed in the furnace casing, the ignition a device is coupled to the combustion head, the gas canister bearing portion is coupled to the furnace shell, the gas canister cover is external to the gas canister bearing portion, and the heat insulating and/or cooling device is located in the furnace shell
  • the gas canister cover the heat insulation and or cooling device comprises an elongated heat dissipation opening in the direction of the airflow disposed on the side of the gas canister cover; and a heat insulation pad located on the inner side of the top of the gas canister cover;
  • the length of the elongated heat dissipation opening is 64.5 mm, the width is 9 mm, and the total area is 6750 mm 2 ;
  • the heat insulation pad is 185 mm long, 50 mm wide, and 0.1
  • the invention has the beneficial effects that the lower panel is sealed to prevent debris from entering the cooker through the lower panel, and is more suitable for use outdoors, especially on the beach; the minimum distance from the combustion head to the gas tank bearing portion is designed, not only Cost savings, making the specific reduction of the stove more convenient to carry.
  • the heat dissipation opening is added on the basis of the prior art, the heat dissipation area is increased, and the heat dissipation opening in the airflow direction on the side of the gas canister cover is designed to make the heat dissipation more effective. Insulation and or heat sinks are placed on top of the gas canister to further reduce the temperature of the gas tanks used for long periods of time.
  • the invention realizes cost savings for the manufacturer on the basis of the gas tank temperature complying with the new international standard, and makes the purchaser more safe and convenient at the time of using the product and the price is suitable.
  • Figure 1 is a schematic view of the overall structure of the present invention and an exploded view of the knob portion;
  • FIG. 2 is a schematic view showing the overall structure of the present invention after installing a gas tank
  • Figure 3 is a schematic view showing the overall structure of the embodiment of the present invention including the gas canister cover and the gas canister cover in a closed state;
  • Figure 4 is a side cross-sectional view of the present invention.
  • Figure 5 is a side view of the present invention.
  • Figure 6 is a rear elevational view of the present invention.
  • Figure 7 is a schematic view showing the structural position of a heat insulating mat in one embodiment of the present invention.
  • Figure 8 is a schematic view showing the structure of a heat sink according to an embodiment of the present invention.
  • Figure 9 is a schematic view showing the structure of a heat sink according to another embodiment of the present invention.
  • Figure 10 is a front elevational view showing the installation of the gas cylinder of the present invention with the gas canister cover in an open state;
  • Figure 11 is a test result of the heat insulation and or cooling effect test 1 of the present invention.
  • Figure 12 is a test result of the heat insulation and or cooling effect test 2 of the present invention.
  • Figure 13 is a test result of the heat insulation and or cooling effect test 3 of the present invention.
  • Figure 14 is a test result of the heat insulation and or cooling effect test 4 of the present invention.
  • Figure 15 is a test result of the heat insulation and or cooling effect test 5 of the present invention.
  • Figure 16 is a test result of the heat insulation and or cooling effect test 6 of the present invention.
  • Figure 17 is a test result of the heat insulation and or cooling effect test 7 of the present invention.
  • Figure 18 is a test result of the heat insulating and cooling effect test 8 of the present invention.
  • the portable explosion-proof gas cooker includes a furnace shell, a combustion head, an ignition device, and an insulation and or cooling device.
  • the furnace shell includes an upper panel 1, a rear panel 9, a side panel, and a chassis 7 (see Fig. 5).
  • the bottom of the chassis 7 is provided with a foot 5 .
  • the cooktop further includes a partition 8 which is connected to the upper panel 1, the front panel 10 and the rear panel 9, respectively, and the adjuster 12 is fixed to the partition 8.
  • a knob 3 is mounted on the drive shaft 15 of the adjuster 12.
  • the distance between the regulator 12 and the horizontally extending surface of the upper panel 1 is at least 47 mm, and the regulator 12 is provided with a double or triple protection device.
  • the heat insulating and cooling device comprises an upper panel heat dissipation hole 19 in the present embodiment, a heat dissipation structure provided on the upper panel 1 of the furnace shell, and a rear surface of the heat dissipation structure, which is a grid shape in this embodiment. structure.
  • the furnace foot 4 and the windshield screen 6 are respectively mounted on the liquid receiving tray 16, and the liquid receiving tray 16 is movably mounted or fixedly connected to the upper panel 1.
  • the windshield 6 has an outer diameter of at least 186 mm.
  • the clamping device 17 is mounted on the partition 8 in a state of being clamped and stretched.
  • FIG. 2 is a schematic view showing the overall structure of the present invention after the gas tank is installed.
  • the chucking device 17 is set to the stretched state, and the air nozzle end of the air cylinder 11 is snapped into the adjuster 12 to bring the chucking device 17 into the clamped state.
  • the knob 3 By rotating the knob 3, the gas in the gas cylinder 11 enters the combustion head 2 through the gas supply pipe 25, and the ignition needle 14 wipes out the flame to ignite the gas.
  • the cooktop in this embodiment further includes a gas canister cover 20.
  • the gas canister cover 20 is placed around the periphery of the gas cylinder 11 to form a closed gas cylinder chamber.
  • the gas canister cover 20 is further provided with a heat insulating and cooling device, that is, an elongated heat dissipation opening 18.
  • the elongated heat dissipation opening 18 is a grid shape perpendicular to the ceiling of the gas canister cover, and the upper end of the grille hollow portion extends toward the ceiling of the gas canister cover to the ceiling of the gas canister cover.
  • each of the grille hollow portions is about 64.5 mm and the width is 9 mm, which prevents the user's fingers from reaching the air tank chamber, and the total area of the grille is 6750 mm 2 .
  • the elongated heat dissipation opening 18 does not extend into the ceiling of the gas canister cover.
  • the reinforcing ridges 26 are reinforced.
  • the combustion head is mounted on a chassis 7 in a furnace casing, and the combustion head includes a combustion head 2 and an air supply pipe 25.
  • the ignition device is connected to the combustion head 2, the ignition needle 14 is disposed below the combustion head 2, and the temperature sensor 13 is mounted on the chassis 7.
  • the gas nozzle end of the gas cylinder 11 is connected to the regulator 12, and the distance a from the center of the combustion head to the longitudinal center axis of the gas cylinder is at least 179 mm.
  • the distance b from the top of the burner to the central axis of the longitudinal center of the gas cylinder is at least 54 mm.
  • Figure 5 is a side view of the present invention with a height c of at least 36 mm.
  • Fig. 6 is a rear view of the present invention, and the chassis 7 is not provided with any opening to prevent impurities from being carried into the interior of the cooker when the user uses the cooker of the present invention on the beach or in the field.
  • FIG. 7 is a schematic structural view of a heat insulating mat according to an embodiment of the present invention.
  • the cooktop in this embodiment includes a gas canister cover 20.
  • the gas canister cover 20 is placed around the periphery of the gas cylinder 11 to form a closed gas cylinder chamber.
  • the gas canister cover 20 is further provided with a heat insulating and cooling device, that is, an elongated heat dissipation opening 18.
  • the elongated heat dissipation opening 18 is a grid shape perpendicular to the ceiling of the gas canister cover, and the upper end of the grille hollow portion extends toward the ceiling of the gas canister cover to the ceiling of the gas canister cover.
  • Each of the grid hollows has a length of about 64.5 mm, a width of 9 mm, and a total area of 6750 mm 2 .
  • the elongated heat dissipation opening 18 does not extend into the ceiling of the gas canister cover.
  • the heat dissipation opening 18 is reinforced to make it less susceptible to deformation during use, and the grid bar portion is reinforced by the reinforcing ridge 26.
  • the heat insulation and or cooling device in the embodiment further includes a gas set.
  • the material of the heat insulating mat 21 is a heat insulating material such as aluminum, tin, plastic, marble, asbestos, etc., and has a length of 185 mm, a width of 50 mm, a thickness of 0.1 mm, and a total area of 9250 mm 2 .
  • the heat insulating and cooling device in this embodiment further includes a heat dissipation hole 22 on the side plate of the furnace shell.
  • FIG. 8 is a schematic structural view of a heat sink according to an embodiment of the present invention.
  • the cooktop in this embodiment includes a gas canister cover 20.
  • the gas canister cover 20 is placed around the periphery of the gas cylinder 11 to form a closed gas cylinder chamber.
  • the gas canister cover 20 is further provided with a heat insulating and cooling device, that is, an elongated heat dissipation opening 18.
  • the elongated heat dissipation opening 18 is a grid shape perpendicular to the ceiling of the gas canister cover, and the upper end of the grille hollow portion extends toward the ceiling of the gas canister cover to the ceiling of the gas canister cover.
  • Each of the grid hollows has a length of about 64.5 mm, a width of 9 mm, and a total area of 6750 mm 2 .
  • the elongated heat dissipation opening 18 does not extend into the ceiling of the gas canister.
  • the heat dissipation opening 18 is reinforced to make it less susceptible to deformation during use, and the grid bar portion is reinforced by the reinforcing ridge 26.
  • the heat insulating and cooling device of the present embodiment further includes a gas canister louver 23 located on the top plate of the gas canister.
  • the heat dissipation hole 23 has a circular shape and a diameter of 2 mm.
  • the heat dissipation hole 23 can be designed to be hollowed out. To prevent debris from falling in, the heat dissipation hole 23 can also be designed as a slotted circular hole structure.
  • FIG. 9 is a schematic structural view of a heat sink according to another embodiment of the present invention.
  • the cooktop in this embodiment includes a gas canister cover 20.
  • the gas canister cover 20 is placed around the periphery of the gas cylinder 11 to form a closed gas cylinder chamber.
  • the gas canister cover 20 is further provided with a heat insulating and cooling device, that is, an elongated heat dissipation opening 18.
  • the elongated heat dissipation opening 18 is a grid shape perpendicular to the ceiling of the gas canister cover, and the upper end of the grille hollow portion extends toward the ceiling of the gas canister cover to the ceiling of the gas canister cover.
  • Each of the grid hollows has a length of about 64.5 mm, a width of 9 mm, and a total area of 6750 mm 2 .
  • the elongated heat dissipation opening 18 does not extend into the ceiling of the gas canister cover.
  • the heat dissipation opening 18 is reinforced to make it less susceptible to deformation during use, and the grid bar portion is reinforced by the reinforcing ridge 26.
  • the heat insulating and cooling device of the present embodiment further includes a gas canister heat sink 24 located on the top plate of the gas canister.
  • the can lid heat sink 24 has a grid shape and is 30 mm long and 2 mm wide.
  • the gas can cover heat sink 24 can be designed to be hollowed out. To prevent debris from falling, the gas can cover heat sink 24 can also be designed as a grooved grid structure.
  • Fig. 10 is a front view showing the installation of the gas cylinder of the present invention with the gas canister cover in an open state.
  • the cooker is in a state of combustion of the gas tank 11 in various parts: a gas tank upper surface upper portion 11a, a gas tank upper surface middle portion 11b, a gas tank upper surface lower portion 11c, and a gas tank lower surface middle portion 11d temperature test results.
  • the embodiments described above in Figures 1-9 are based on the following experimental data and are not limited to the experimental data below.
  • the distance a from the center of the burner head to the center of the gas cylinder chamber is 149 mm
  • the embodiment of the present invention with the unheated gas tank cover heat dissipation opening and without the heat insulation mat 21 is used as a test object, and 350 is selected.
  • An iron plate of ⁇ 350 ⁇ 10 mm was used as a heating tray.
  • the cooker is placed on the test bench, and the gas tank 11 is placed in the cooker; the upper surface 11a of the gas tank, the middle portion 11b of the upper surface of the gas tank, the lower portion 11c of the upper surface of the gas tank, and the side portion 11d of the gas tank are respectively connected to the automatic balance recording.
  • the test results are shown in Fig. 11.
  • the temperature of the middle part of the lower surface of the gas tank 11d is much lower than the temperature of other places, and the temperature does not increase with the increase of the heating time.
  • the lower surface of the gas tank will be The central 11d temperature has an effect. Therefore, it was confirmed that the heat conduction causing the temperature of the gas tank 11 is excessively high from the upper surface of the gas tank 11.
  • the other three test curves of the upper surface upper surface 11a of the gas tank, the middle portion 11b of the upper surface of the gas tank, and the lower portion 11c of the upper surface of the gas tank indicate that the temperature of the upper surface of the gas tank is gradually increased as the heating time increases.
  • the temperature of the middle portion 11b of the upper surface of the gas tank reached 51.3 degrees Celsius when heated to 91 minutes.
  • the test results are shown in Fig. 12.
  • the test curve shows that the temperature of the upper surface of the gas tank is gradually increasing as the heating time increases. After 76 minutes of heating, the maximum temperature of the curve exceeded 50 degrees Celsius.
  • the test results are shown in Figure 13.
  • the test curve shows that as the heating time increases, the temperature of the upper surface of the gas tank rises gradually. After heating for 84 minutes, the highest temperature of the curve did not exceed 50 degrees Celsius. Therefore, it is determined that the distance a from the center of the burner head to the center of the tank chamber is 179 mm.
  • the test results are shown in Fig. 14.
  • the four test curves show that the temperature of the upper surface of the four gas cylinders gradually increases as the heating time increases. After heating for 90 minutes, the highest temperature of the four curves exceeded 50 degrees Celsius.
  • an iron plate of 350 ⁇ 350 ⁇ 10 mm was selected as the heating tray.
  • the test results are shown in Fig. 15.
  • the three test curves show that the temperature of the upper surface of the gas tank is gradually increasing as the heating time increases. The maximum temperature of the three curves did not exceed 50 degrees Celsius when heated for 90 minutes.
  • Group 1 was heated to 96 minutes at a temperature of 50.1 degrees Celsius and the temperature was maintained to fluctuate beyond 50 degrees Celsius.
  • Group 2 Group 3 still maintained temperatures well below 50 degrees Celsius after heating to 100 minutes.
  • Experimental results of comparison group 1 and group 2, group 3 indicate partial removal of the gas canister cover 20 Will greatly enhance the heat dissipation effect.
  • One set of stoves has a height of 715mm from the ground, two sets of stoves have a height of 710mm from the ground, three sets of stoves have a height of 720mm from the ground, and four sets of stoves have a height of 695mm from the ground.
  • a 350 ⁇ 350 ⁇ 10mm iron plate is selected as the heating tray. Place the cooker on the test bench separately, put the gas tank 11 into the cooker; connect the automatic balance recorder to the middle surface 11b of the upper surface of the gas tank, measure and record the initial temperature of the position; ignite the combustion head 2 and 350 ⁇ 350 ⁇
  • the 10mm iron plate is placed on the stove foot 4; the temperature is recorded every 1 minute for about one hour and thirty minutes. When measuring, the initial temperature of the gas tank is 22 degrees Celsius, the indoor temperature is 21-23 degrees Celsius, the humidity is 20%, and the atmospheric pressure is 1012 hpa. The experiment was repeated 5 times.
  • the test results are shown in Fig. 16.
  • the four test curves show that the temperature of the upper surface of the four groups of gas tanks gradually increases as the heating time increases. After heating for 90 minutes, the maximum temperature of a set of curves exceeded 50 degrees Celsius, and the remaining curves did not exceed 50 degrees Celsius.
  • the test three cookers are used, the replacement parts are the unheated can cover heat dissipation opening and the heat insulation pad 21, and the heat insulation pad 21 is 1.5 mm thick 185 mm long 50 mm wide plastic plate, and is selected to be 350 ⁇ 350 ⁇ 10 mm.
  • the iron plate serves as a heating tray.
  • the cooker is placed on the test bench, and the gas tank 11 is placed in the cooker; the upper balance surface 11a of the gas tank, the middle portion 11b of the upper surface of the gas tank, and the lower portion 11c of the upper surface of the gas tank are respectively connected with an automatic balance recorder, and the above three are measured and recorded.
  • the test results are shown in Fig. 17.
  • the three test curves indicate that the temperature of the upper portion 11a of the upper surface of the gas tank, the middle portion 11b of the upper surface of the gas tank, and the lower portion 11c of the upper surface of the gas tank gradually increase as the heating time increases. After heating for 90 minutes, the highest temperature of the three curves did not exceed 40 degrees Celsius.
  • the test results are shown in Fig. 18.
  • the test curve shows that the temperature of the upper surface of the gas tank is gradually increasing as the heating time increases. After heating for 108 minutes, the maximum temperature did not exceed 50 degrees Celsius.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Baking, Grill, Roasting (AREA)
  • Gas Burners (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Cookers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

便携式防爆燃气灶具，包括炉壳、燃烧头（2）、点火装置、气罐承载部以及隔热降温装置，燃烧头（2）安装在炉壳内，点火装置与燃烧头（2）相连，气罐承载部与炉壳相连，隔热降温装置位于炉壳上，该灶具还包括气罐罩和挡风屏（6），气罐罩（20）上设置有加长散热开口（18）和气罐罩散热孔（23）。该灶具隔热和散热效果好，加热更安全。

Description

便携式防爆燃气灶具 技术领域
本发明涉及燃气灶具技术领域，特别是一种便携式防爆燃气灶具。
背景技术
现有技术中，普通的燃气灶具在正常使用或者在使用烤盘时，由于燃烧头与气罐之间的距离过短，并且挡风屏的外径过小，使燃烧头火焰的热量及烤盘温度过高。导热的热量通过燃气灶的炉壳和气罐罩传到气罐上，使气罐的温度过高，燃气灶具的安全装置启动，使气罐退回原位。虽然气罐退回原位，但由于燃烧头和烤盘导热传到气罐上的热量过高，气罐会产生爆炸的隐患，非常危险。
ZL201420766905.5公开了一种便携式燃气灶具，它包含了上面板、燃烧头、旋钮、炉脚、挡风屏、底盘、隔板、后面板、前面板、气罐、调节器、温度传感器、点火针、导热板和承液盘；所述燃烧头安装在底盘上，炉脚和挡风屏分别安装在承液盘上，承液盘安装在上面板上，气罐与调节器连接，隔板分别与上面板、前面板和后面板连接，调节器固定在隔板上，旋钮安装在调节器上,上面板中间设有散热孔,后面板上设有散热孔,点火针设置在燃烧头的下端，温度传感器安装在底盘上，导热板连接在燃烧头上。此申请文件并未公开燃烧头与所述点火装置间的最小距离，因此无法保证制作出的燃气灶具的成本最低化；虽然公开了气罐盖上存在散热孔，但对于这些散热孔的大小形状位置以及能够起到何种程度的散热作用都没有具体描述，根据附图可以看出散热孔开在气罐盖的一侧，不能有效散热；此外此专利没有公开除散热孔之外的任何隔热和或降温装置的结构或方法。总之，该专利公开的发明创造不能降低灶具的生产成本，也不能有效达到良好的散热效果。
新版欧盟标准要求燃气灶具在加热90分钟后气罐温度不得超过50摄氏度。因此，如何即节约成本又增强灶具的隔热和或散热效果以满足国际标准成为燃气灶具成为便携式灶具设计者急待解决的问题。
发明内容
本发明的目的是提供一种可以放置在户外特别是像沙滩这样的地方，且隔热和或散热效果好，加热更加安全的便携式防爆燃气灶具。
本发明为实现上述目的所采用的技术方案是：便携式防爆燃气灶具，包括炉壳、燃烧头、点火装置、气罐承载部以及隔热和或降温装置；所述燃烧头安装于所述炉壳内，所述点火装置与所述燃烧头相连，所述气罐承载部与所述炉壳相连，所述隔热和或降温装置位于所述炉壳上；所述燃烧头中心到所述气罐室中心的距离为179mm或以上。
优选地，所述便携式防爆燃气灶具进一步包含气罐罩，所述气罐罩罩在所述气罐承载部的外部。
优选地，所述点火装置包含调节器，温度传感器以及点火针；所述调节器安装固定在所述气罐承载部内，所述温度传感器固定安装在所述炉室的底部，所述点火针设置在所述燃烧头的下端。
优选地，所述便携式防爆燃气灶具进一步包含挡风屏；所述挡风屏的外径尺寸至少为186mm。
优选地，所述便携式防爆燃气灶具进一步包含四个底脚，所述四个底脚连接于所述炉壳的下部；所述炉壳下部不设置开口。
优选地，所述隔热和或降温装置包括隔热贴，所述隔热贴位于所述气罐罩顶部的内侧。
优选地，所述隔热和或降温装置包括位于所述气罐罩顶部的气罐罩散热开口。
优选地，所述气罐罩散热开口为孔状或格栅状。
优选地，所述的隔热和或降温装置包括在所述气罐罩侧部设置的气流方向向上的加长散热开口。
本发明还保护便携式防爆燃气灶具，包括炉壳、燃烧头、点火装置、气罐承载部、气罐罩以及隔热和或降温装置；所述燃烧头安装于所述炉壳内，所述点火装置与所述燃烧头相连，所述气罐承载部与所述炉壳相连，所述气罐罩罩在所述气罐承载部的外部，所述隔热和或降温装置位于所述炉壳以及所述气罐罩上；所述的隔热和或降温装置包括在所述气罐罩侧部设置的气流方向向上的加长散热开口以及位于所述气罐罩顶部内侧的隔热垫；每条所述加长散热开口的长度为64.5mm、宽9mm，总面积为6750mm2；所述隔热垫长185mm、宽50mm、厚0.1mm，为铝箔材质。
本发明的有益效果为：下面板密封，避免杂物通过下面板进入灶具，更适于在户外特别是沙滩上使用；设计了从燃烧头到气罐承载部的最小距离，不仅 节约成本，使灶具体积减小更加便于携带。在现有技术的基础上增加了散热开口，增加了散热面积，并且设计了位于气罐罩侧面的气流方向向上的散热开口，使散热更加有效。在气罐罩顶部设置隔热和或散热装置，进一步降低长时间使用的气罐的温度。总之本发明在气罐温度符合新国际标准的基础上实现了为生产制造商节约成本，并令购买者在使用产品时更加安全方便且价格适宜。
附图说明
图1是本发明的整体结构示意图以及旋钮部分的爆炸图；
图2是本发明安装气罐后的整体结构示意图；
图3是本发明包含气罐罩的实施例且气罐罩处于关闭状态的整体结构示意；
图4是本发明侧视剖视图；
图5是本发明侧视图；
图6是本发明后视图；
图7是本发明一个实施例中的隔热垫的结构位置示意图；
图8是本发明一个实施例里的散热装置的结构位置示意图；
图9是本发明另一个实施例里的散热装置的结构位置示意图；
图10是本发明安装气罐且气罐罩处于打开状态的主视图；
图11是本发明隔热和或降温效果测试一的测试结果；
图12是本发明隔热和或降温效果测试二的测试结果；
图13是本发明隔热和或降温效果测试三的测试结果；
图14是本发明隔热和或降温效果测试四的测试结果；
图15是本发明隔热和或降温效果测试五的测试结果；
图16是本发明隔热和或降温效果测试六的测试结果；
图17是本发明隔热和或降温效果测试七的测试结果；
图18是本发明隔热和或降温效果测试八的测试结果。
附图标记说明：
1、上面板；2、燃烧头；3、旋钮；4、炉脚；5、底脚；6、挡风屏；7、底盘；8、隔板；9、后面板；10、前面板；11、气罐；11a、气罐上表面上部；11b、气罐上表面中部；11c、气罐上表面下部；11d、气罐下表面中部；12、调节器；13、温度传感器；14、点火针；15、转动轴；16、承液盘；17、卡紧 装置；18、加长散热开口；19、上面板散热孔；20、气罐罩；21、隔热垫；22、侧面板散热孔；23、气罐罩散热孔；24、气罐罩散热格栅；25、送气管；26、加固脊；a、为燃烧头中心到气罐室中心的距离；b、为燃烧头顶部到气罐纵向中心中轴线的距离；c、为炉脚高度。
具体实施方式
下面结合附图、通过具体实施例对本实用新型作进一步详述。以下实施例只是描述性的，不是限定性的，不能以此限定本实用新型的保护范围。
如图1所示，是本发明的整体结构示意图以及旋钮部分的爆炸图。便携式防爆燃气灶具包含了炉壳、燃烧头、点火装置以及隔热和或降温装置。炉壳包含了上面板1、后面板9、侧面板、以及底盘7(见图5)。底盘7的底部设有底脚5。在本实施例中，灶具还包含了隔板8，隔板8分别与上面板1、前面板10和后面板9连接，调节器12固定在隔板8上。调节器12的传动轴15上安装有旋钮3。调节器12至上面板1水平延伸面的距离至少为47mm，调节器12设有两重或三重保护装置。隔热和或降温装置，在本实施例中包含上面板散热孔19，位于所述炉壳的上面板1上，以及后面板9上设有的散热结构，在本实施例中为格栅状结构。炉脚4和挡风屏6分别安装在承液盘16上，承液盘16活动安装于或固定连接于上面板1上。挡风屏6的外径尺寸至少为186mm。卡紧装置17安装于隔板8上，有卡紧以及舒展两个状态。
如图2所示，图2为本发明安装气罐后的整体结构示意图。当使用本实施例时，将卡紧装置17拨到舒展状态，把气罐11的气嘴端卡入调节器12中，将卡紧装置17拨到卡紧状态。旋转旋钮3，气罐11内的燃气通过送气管25进入燃烧头2，点火针14擦出火苗将燃气点燃。
如图3所示，本实施例中的灶具进一步包含气罐罩20。气罐罩20罩在气罐11外围，形成一个闭合的气罐室。气罐罩20上进一步设有隔热和或降温装置，即加长散热开口18。在本实施例中，加长散热开口18为垂直于气罐罩顶板的格栅状，格栅镂空部的上端向气罐罩顶板方向延伸至气罐罩顶板。每条格栅镂空部的长度约为64.5mm，宽9mm，防止使用者的手指伸入气罐室，隔栅部镂空总面积为6750mm2。为防止使用灶具加热时，加热的食品或其他物品落入气罐室内，因此加长散热开口18不延伸至气罐罩顶板内。
为加固加长散热开口18使其在使用过程中不易产生形变，格栅栅条部由 加固脊26进行加固。
如图4所示，燃烧头安装于炉壳内的底盘7上，燃烧头包含燃烧头2以及送气管25。点火装置与燃烧头2相连，点火针14设置在燃烧头2的下方，温度传感器13安装在底盘7上。气罐11的气嘴端与调节器12连接，燃烧头中心到气罐纵向中心中轴线的距离a至少为179mm。燃烧头顶部到气罐纵向中心中轴线的距离b至少为54mm。
如图5所示，图5为本发明侧视图，炉脚的高度c至少为36mm。
如图6所示，图6为本发明后视图，底盘7上不设有任何开口，以防止当使用者在沙滩或野外使用本发明灶具时，将杂质带入灶具内部。
如图7所示，图7为本发明一个实施例中的隔热垫的结构位置示意图。本实施例中的灶具包含气罐罩20。气罐罩20罩在气罐11外围，形成一个闭合的气罐室。气罐罩20上进一步设有隔热和或降温装置，即加长散热开口18。在本实施例中，加长散热开口18为垂直于气罐罩顶板的格栅状，格栅镂空部的上端向气罐罩顶板方向延伸至气罐罩顶板。每条格栅镂空部的长度约为64.5mm，宽9mm，总面积为6750mm2。为防止使用灶具加热时，加热的食品或其他物品落入气罐室内，因此加长散热开口18不延伸至气罐罩顶板内。
为加固加长散热开口18使其在使用过程中不易产生形变，格栅栅条部由加固脊26进行加固。
另外，由于气罐室内温度升高的原因是由于燃烧头2在燃烧时将热量通过气罐罩顶板传递入气罐室内，因此本实施例中的隔热和或降温装置还进一步包含设置于气罐罩顶板内部的隔热垫21。隔热垫21的材质为隔热材料，例如铝、锡、塑料、大理石、石棉等，长度为185mm，宽度为50mm，厚度为0.1mm，总面积为9250mm2。
更进一步地，本实施例中的隔热和或降温装置还包含炉壳侧面板上的散热孔22。
如图8所示，图8为本发明一个实施例里的散热装置的结构位置示意图。本实施例中的灶具包含气罐罩20。气罐罩20罩在气罐11外围，形成一个闭合的气罐室。气罐罩20上进一步设有隔热和或降温装置，即加长散热开口18。在本实施例中，加长散热开口18为垂直于气罐罩顶板的格栅状，格栅镂空部的上端向气罐罩顶板方向延伸至气罐罩顶板。每条格栅镂空部的长度约为64.5mm，宽9mm，总面积为6750mm2。为防止使用灶具加热时，加热的食品或其 他物品落入气罐室内，因此加长散热开口18不延伸至气罐罩顶板内。
为加固加长散热开口18使其在使用过程中不易产生形变，格栅栅条部由加固脊26进行加固。
另外，本实施例中的隔热和或降温装置还进一步包含位于气罐罩顶板的气罐罩散热孔23。散热孔23的形状为圆形，直径为2mm。散热孔23可设计为镂空状，为防止掉入杂物，散热孔23也可设计为有槽的圆孔结构。
如图9所示，图9为本发明另一个实施例里的散热装置的结构位置示意图。本实施例中的灶具包含气罐罩20。气罐罩20罩在气罐11外围，形成一个闭合的气罐室。气罐罩20上进一步设有隔热和或降温装置，即加长散热开口18。在本实施例中，加长散热开口18为垂直于气罐罩顶板的格栅状，格栅镂空部的上端向气罐罩顶板方向延伸至气罐罩顶板。每条格栅镂空部的长度约为64.5mm，宽9mm，总面积为6750mm2。为防止使用灶具加热时，加热的食品或其他物品落入气罐室内，因此加长散热开口18不延伸至气罐罩顶板内。为加固加长散热开口18使其在使用过程中不易产生形变，格栅栅条部由加固脊26进行加固。
另外，本实施例中的隔热和或降温装置还进一步包含位于气罐罩顶板的气罐罩散热格栅24。气罐罩散热格栅24的形状为格栅状，长为30mm，宽为2mm。气罐罩散热格栅24可设计为镂空状，为防止掉入杂物，气罐罩散热格栅24也可设计为有槽的格栅结构。
如图10所示，图10为本发明安装气罐且气罐罩处于打开状态的主视图。灶具在燃烧状态下气罐11各部分：气罐上表面上部11a、气罐上表面中部11b、气罐上表面下部11c以及气罐下表面中部11d温度测试的结果。以上图1-9中描述的实施例是根据以下实验数据且不限于以下实验数据得出。
测试一：
实验用品和实验方法：采用燃烧头中心到气罐室中心的距离a为149mm，带有未加长的气罐罩散热开口且不带有隔热垫21的本发明实施例作为测试对象，选取350×350×10mm的铁板作为加热托盘。将灶具放置于实验台上，将气罐11放入灶具内；在气罐上表面上部11a、气罐上表面中部11b、气罐上表面下部11c以及气罐表面侧部11d分别连接自动平衡记录仪，测量并记录以上四个位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，室内温度 为26摄氏度，湿度为41％，大气压为1010hpa。实验反复重复5次。
测试结果如图11所示，气罐下表面中部11d的温度远低于其他位置的温度，且温度并不随着加热时间的增长而增高，当气罐整体温度过高时会对气罐下表面中部11d温度产生影响。因此证明造成气罐11温度过高的热传导来自于气罐11的上表面。其他三条测试曲线气罐上表面上部11a、气罐上表面中部11b、气罐上表面下部11c表明随着加热时间的增长，气罐上表面的温度在逐步上升。其中气罐上表面中部11b的温度在加热到91分钟时达到了51.3摄氏度。
测试二：
实验用品和实验方法：将测试一产品部分替换，具体的讲是为燃烧头中心到气罐室中心的距离a设计为169mm，并采用带有加长的气罐罩散热口。本测试中，气罐水柱压630mmH2O，灶具离地高度697mm，选取350×350×10mm的铁板作为加热托盘。将灶具放置于实验台上，将气罐11放入灶具内；在气罐上表面中部11b连接自动平衡记录仪，测量并记录该位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于灶具炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，气罐初始温度为22摄氏度，室内温度为27摄氏度，湿度为34％，大气压为1025hpa。相同实验重复5次。
测试结果如图12所示，测试曲线表明随着加热时间的增长，气罐上表面的温度在逐步上升。在加热76分钟后，曲线的温度最高值超过50摄氏度。
测试三：
实验用品和实验方法：将测试二产品部分替换，具体的讲是为燃烧头中心到气罐室中心的距离a设计为179mm并带有加长的气罐罩散热口。本测试中，气罐水柱压630mmH2O，灶具离地高度697mm，选取350×350×10mm的铁板作为加热托盘。将灶具放置于实验台上，将气罐11放入灶具内；在气罐上表面中部11b连接自动平衡记录仪，测量并记录该位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于灶具炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，气罐初始温度为22摄氏度，室内温度为25摄氏度，湿度为30％，大气压为1025hpa。相同实验重复5次。
测试结果如图13所示，测试曲线表明随着加热时间的增长，气罐上表面的温度在逐步上升。在加热84分钟后，曲线的温度最高值未超过50摄氏度。因此确定燃烧头中心到气罐室中心的距离a设计为179mm为最佳方案。
测试四：
实验用品和实验方法：将测试三灶具部分替换，具体的讲是采用带有未加长的气罐罩散热开口不带有隔热垫21的灶具，且缺少侧面板散热孔22。本测试中，一组气罐水柱压630mmH2O，二组气罐水柱压610mmH2O，三组和四组气罐水柱压均为620mmH2O；一组灶具离地高度713mm，二组灶具离地高度715mm，三组和四组灶具离地高度697mm；选取350×350×10mm的铁板作为加热托盘。将四组灶具分别放置于实验台上，将气罐11放入灶具内；在气罐上表面中部11b连接自动平衡记录仪，测量并记录该位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于灶具炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，气罐初始温度为22摄氏度，室内温度为23-24摄氏度，湿度为18％，大气压为1027hpa。相同实验重复5次。
测试结果如图14所示，四组测试曲线表明随着加热时间的增长，四组气罐上表面的温度在逐步上升。在加热90分钟后，四条曲线的温度最高值均超过50摄氏度。
测试五：
实验用品和实验方法：采用三组测试三灶具且均带有后面板散热孔及侧面板散热孔22。替换部件为：组1采用带有未加长气罐罩散热开口且带有隔热垫21的灶具，隔热垫21为180mm×50mm×0.7mm的石棉垫；组2的灶具带有未加长气罐罩散热开口并切除气罐罩顶部且将其架设在气罐罩20之上；组3的灶具带有未加长气罐罩散热开口、炉脚4高度为40mm且切除气罐罩顶部并将其架设在气罐罩20之上。本测试中，选取350×350×10mm的铁板作为加热托盘。将三组灶具分别放置于实验台上，将气罐11放入灶具内；在气罐上表面中部11b连接自动平衡记录仪，测量并记录该位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于灶具炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，室内温度为25摄氏度，湿度为27％，大气压为1013hpa。每组实验重复5次。
测试结果如图15所示，三条测试曲线表明随着加热时间的增长，气罐上表面的温度在逐步上升。在加热90分钟时，三条曲线的温度最高值均未超过50摄氏度。组1在加热到96分钟时，温度为50.1摄氏度,且温度保持在超过50摄氏度的范围波动。组2组3的在加热到100分钟之后仍然保持远低于50摄氏度的温度。对比组1以及组2、组3的实验结果表明将气罐罩20部分移除 会大大增强散热效果。
测试六：
实验用品和实验方法：采用四组测试三灶具，替换部件为未加长气罐罩散热开口和隔热垫21。本测试中，一组气罐水柱压630mmH2O，气罐罩顶板内壁加180mm×50mm×0.4mm铁制隔热板；二组气罐水柱压610mmH2O，气罐罩顶板内壁加180mm×50mm锡纸；三组和四组气罐水柱压均为620mmH2O且均在气罐罩顶板内壁加180mm×50mm锡纸，四组上面板侧面板后面板所有散热孔用锡纸封死。一组灶具离地高度715mm，二组灶具离地高度710mm，三组灶具离地高度720mm，四组灶具离地高度695mm；选取350×350×10mm的铁板作为加热托盘。将灶具分别放置于实验台上，将气罐11放入灶具内；在气罐上表面中部11b连接自动平衡记录仪，测量并记录该位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于灶具炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，气罐初始温度为22摄氏度，室内温度位21-23摄氏度，湿度为20％，大气压为1012hpa。实验重复5次。
测试结果如图16所示，四条测试曲线表明随着加热时间的增长，四组气罐上表面的温度在逐步上升。在加热90分钟后，一组曲线的温度最高值超过50摄氏度，其余曲线均未超过50摄氏度。
测试七：
实验用品和实验方法：采用测试三灶具，替换部件为未加长气罐罩散热开口和隔热垫21，隔热垫21为1.5mm厚的185mm长50mm宽的塑料板，选取350×350×10mm的铁板作为加热托盘。将灶具放置于实验台上，将气罐11放入灶具内；在气罐上表面上部11a、气罐上表面中部11b、气罐上表面下部11c分别连接自动平衡记录仪，测量并记录以上三个位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右，每组实验重复5次。测量时，室内温度为25摄氏度，湿度为54％，大气压为1010hpa。实验重复5次。
测试结果如图17所示，三条测试曲线表明气罐上表面上部11a、气罐上表面中部11b、气罐上表面下部11c的温度随着加热时间的增长在逐步上升。在加热90分钟后，三条曲线的温度最高值均未超过40摄氏度。
测试八
实验用品和实验方法：采用测试三灶具，替换部件为加长散热开口18和 隔热垫21。本测试中，气罐水柱压640mmH2O，气罐罩顶板内壁加185mm×50mm5C铝纸。灶具离地高度715mm。将灶具分别放置于实验台上，将气罐11放入灶具内；在气罐上表面中部11b连接自动平衡记录仪，测量并记录该位置的初始温度；点燃燃烧头2并将350×350×10mm铁板放置于灶具炉脚4上；每隔1分钟记录一次温度，持续一小时三十分钟左右。测量时，气罐初始温度为22摄氏度，室内温度为24摄氏度，湿度为18％，大气压为1025hpa。实验重复5次。
测试结果如图18所示，测试曲线表明随着加热时间的增长，气罐上表面的温度在逐步上升。在加热108分钟后，温度最高值未超过50摄氏度。

Claims (10)

  1. 便携式防爆燃气灶具，其特征在于：包括炉壳、燃烧头、点火装置、气罐承载部以及隔热和或降温装置；所述燃烧头安装于所述炉壳内，所述点火装置与所述燃烧头相连，所述气罐承载部与所述炉壳相连，所述隔热和或降温装置位于所述炉壳上；所述燃烧头中心到所述气罐室中心的距离为179mm或以上。
  2. 根据权利要求1所述的便携式防爆燃气灶具，其特征在于：所述便携式防爆燃气灶具进一步包含气罐罩，所述气罐罩罩在所述气罐承载部的外部。
  3. 根据权利要求1或2所述的便携式防爆燃气灶具，其特征在于：所述点火装置包含调节器，温度传感器以及点火针；所述调节器安装固定在所述气罐承载部内，所述温度传感器固定安装在所述炉室的底部，所述点火针设置在所述燃烧头的下端。
  4. 根据权利要求1或2所述的便携式防爆燃气灶具，其特征在于：所述便携式防爆燃气灶具进一步包含挡风屏；所述挡风屏的外径尺寸至少为186mm。
  5. 根据权利要求1或2所述的便携式防爆燃气灶具，其特征在于：所述便携式防爆燃气灶具进一步包含四个底脚，所述四个底脚连接于所述炉壳的下部；所述炉壳下部不设置开口。
  6. 根据权利要求2所述的便携式防爆燃气灶具，其特征在于，所述隔热和或降温装置包括隔热贴，所述隔热贴位于所述气罐罩顶部的内侧。
  7. 根据权利要求2所述的便携式防爆燃气灶具，其特征在于，所述隔热和或降温装置包括位于所述气罐罩顶部的气罐罩散热开口。
  8. 根据权利要求7所述的便携式防爆燃气灶具，其特征在于，所述气罐罩散热开口为孔状或格栅状。
  9. 根据权利要求2或6或7或8所述的便携式防爆燃气灶具，其特征在于：所述的隔热和或降温装置包括在所述气罐罩侧部设置的气流方向向上的加长散热开口。
  10. 便携式防爆燃气灶具，其特征在于：包括炉壳、燃烧头、点火装置、气罐承载部、气罐罩以及隔热和或降温装置；所述燃烧头安装于所述炉壳内，所述点火装置与所述燃烧头相连，所述气罐承载部与所述炉壳相连，所述气罐罩罩在所述气罐承载部的外部，所述隔热和或降温装置位于所述炉壳以及所述气罐罩上；
    所述的隔热和或降温装置包括在所述气罐罩侧部设置的气流方向向上的加长散热开口以及位于所述气罐罩顶部内侧的隔热垫；每条所述加长散热开口 的长度为64.5mm、宽9mm，总面积为6750mm2；所述隔热垫长185mm、宽50mm、厚0.1mm，为铝箔材质。
PCT/CN2016/087544 2015-07-15 2016-06-29 便携式防爆燃气灶具 WO2017008636A1 (zh)

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