CN113513753B - Gas equipment - Google Patents

Abstract

The invention provides a gas appliance, comprising: the first shell comprises a flow passage, an inlet and an outlet which are communicated with the flow passage; the plate is arranged at the outlet and comprises a plurality of first through holes communicated with the flow channel so as to form a heating area on the plate; and the temperature sensor is connected with the plate, and in the height direction of the gas equipment, part of the temperature sensor is positioned above the plate and used for sensing the temperature of the heated vessel on the plate. The plurality of first through holes are uniformly distributed in a certain annular area on the plate, so that an annular heating area is formed on the plate, and a single-ring infrared heating system is formed. Through surrounding the annular zone of heating and setting up in temperature sensor's week side, can optimize gas equipment's structural layout, promote gas equipment's compact structure degree on the basis that satisfies the infrared heating of monocycle, avoid gas equipment to occupy too much space.

Description

Gas equipment

Technical Field

The invention relates to the technical field of combustors, in particular to gas equipment.

Background

Infrared combustion uses infrared radiation for heating, and is highly advantageous for industrial and domestic burners due to its low emissions and high efficiency.

However, the infrared combustion cooker which is far away by adopting infrared radiation heating does not have an anti-dry heating detection function, so that the infrared combustion cooker cannot intelligently judge whether a cooking appliance heated on the infrared combustion cooker is in a dry heating state, and potential safety hazards are generated.

Therefore, how to design a gas device which adopts an infrared radiation heating principle and can realize dry burning prevention detection becomes a technical problem to be solved urgently at present.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

Therefore, the invention provides a gas device.

In view of this, the present invention provides a gas appliance, comprising: the first shell comprises a flow passage, an inlet and an outlet which are communicated with the flow passage; the plate is arranged at the outlet and comprises a plurality of first through holes communicated with the flow channel so as to form a heating area on the plate; and the temperature sensor is connected with the plate, and in the height direction of the gas equipment, part of the temperature sensor is positioned above the plate and used for sensing the temperature of the heated vessel on the plate. Wherein, the heating zone is ring-shaped, and the heating zone encircles the temperature sensor.

In the gas equipment provided by the invention, the first shell is arranged on the gas equipment, and the first shell is a frame structure of the gas equipment and is used for protecting and bearing other structures on the gas equipment. Specifically, a flow passage is arranged in the first shell and used for allowing air and fuel gas to flow so as to guide the air and the fuel gas to a preset position and then ignite.

The gas equipment is also provided with a plate. Specifically, the plate is connected with the first shell and covers the outlet of the flow channel, a plurality of first through holes are formed in the plate, and the plurality of first through holes are distributed in the plate to form a heating area in the plate. During operation, the air and the fuel gas which are mixed in the flow passage are discharged through the first through holes on the plate. After the mixture flowing to the outside of the flow channel through the first through hole is ignited, the heating area provided with the first through hole is heated by the heat generated by combustion, and infrared rays are emitted after the temperature of the plate is heated to exceed a preset temperature value so as to heat the heated vessel arranged opposite to the plate through the infrared rays, thereby realizing the infrared ray heating of the heated vessel. Compared with the technical scheme of heating the object to be heated by open fire, the infrared heating device has more excellent heating efficiency and controllability and higher safety.

On the basis, the gas equipment is also provided with a temperature sensor. The temperature sensors are connected with the plate, after the temperature sensors are assembled, part of the temperature sensors are arranged above the plate, namely in the height direction of the gas equipment, and part of the temperature sensors are higher than the plate. Through arranging partial temperature sensor at the plate top, shortened the distance of temperature sensor and heated household utensils, can make heated household utensils after placing at the plate top, temperature sensor can more conveniently sense the temperature value of heated household utensils. The gas equipment has the capability of monitoring the temperature value of the heated vessel by arranging the temperature sensor, so that the gas equipment can judge whether the heated vessel is in a dry-burning state or not through the variation trend of the temperature value detected by the temperature sensor, and then timely sends out a dry-burning early warning or controls the heating area to stop heating the heated vessel after determining that the heated vessel is in the dry-burning state. And then solve infrared burning cooking utensils and appear the technical problem because of the incident that dry combustion arouses easily, realize optimizing gas equipment structure, promote the intelligent degree of gas equipment, strengthen the technical effect of gas equipment security and reliability.

Specifically, the gas equipment can also be provided with a controller, an alarm device and a gas conveying device. The controller is connected with the temperature sensor, the alarm device is connected with the controller, and when the controller determines that the gas appliance is in a dry burning state at present according to the temperature value sensed by the temperature sensor, the controller controls the alarm device to give out a dry burning alarm so as to remind a user of closing the gas appliance in time. The gas conveying device is connected with the inlet of the flow passage and used for conveying gas into the flow passage, and the controller is connected with the gas conveying device. When the controller determines that the gas equipment is in the dry combustion state at present according to the temperature value sensed by the temperature sensor, the controller controls the gas conveying device to stop conveying the gas so as to realize dry combustion prevention shutdown of the gas equipment.

The invention also provides the arrangement of the heating zones and the temperature sensors on the plate. The plurality of first through holes are uniformly distributed in a certain annular area on the plate, so that an annular heating area is formed on the plate, and a single-ring infrared heating system is formed. On this basis, temperature sensor sets up the inner ring side in the cyclic annular zone of heating, through encircleing the cyclic annular zone of heating and setting up in temperature sensor's week side, can optimize gas equipment's structural layout on the one hand, promotes gas equipment's compact structure degree on the basis that satisfies monocyclic infrared heating, avoids gas equipment to occupy too much space. On the other hand, the temperature sensor can detect the central area of the heated vessel, so that the accuracy and reliability of judging the dry-burning state are improved. And then realize optimizing gas equipment structural configuration, reduce gas equipment installation occupation space, strengthen the technical effect of gas equipment security and reliability.

In addition, the gas equipment provided by the invention can also have the following additional technical characteristics:

in above-mentioned technical scheme, the plate still includes the second through-hole, and gas equipment still includes: the support is arranged in the second through hole, and the temperature sensor is connected with the support.

In the technical scheme, the plate is further provided with a second through hole, and the plurality of first through holes are arranged around the second through hole so as to arrange the second through hole in the inner annular side of the annular heating area. The gas equipment is also provided with a support, the support is arranged in the second through hole, and the temperature sensor is arranged on the support. Through set up the second through-hole on the plate, the non-zone of heating at plate middle part can dodge temperature sensor to inlay temperature sensor and support and establish in the second through-hole, with the compact structure degree that promotes gas equipment, reduce gas equipment's occupation space. Through setting up the support, make gas equipment can install in the second through-hole of plate with the help of the support location to promote temperature sensor's location reliability. The temperature sensor is prevented from deviating from the predetermined mounting position during operation.

In the technical scheme, the temperature sensor is arranged on the support in a penetrating mode, and part of the temperature sensor can move relative to the support.

In the technical scheme, the support is provided with the positioning hole, and the temperature sensor is arranged in the positioning hole in a penetrating mode, so that the temperature sensor is suspended in the second through hole, and the temperature sensor can sense the temperature of the heated vessel area above the second through hole. On the basis, part of the temperature sensors can move relative to the support, and after the heated vessel placed at the top of the plate contacts the part of the temperature sensors, the part of the temperature sensors can move relative to the support so as to adaptively adjust the position of the temperature sensors and ensure that the temperature sensors can abut against the bottom of the heated vessel, so that convenience is provided for sensing the temperature value of the heated vessel, and the accuracy and reliability of temperature sensing are improved.

In the above technical solution, the temperature sensor includes: the body is arranged on the bracket in a penetrating way; the measuring part is arranged on the body and can move relative to the body in the height direction of the gas equipment; and the elastic piece is connected with the body and the measuring part and is positioned between the body and the measuring part.

In this technical solution, the structure of the temperature sensor is defined. Specifically, temperature sensor includes body and measuring part, and the body is worn to establish in the second through-hole, with support fixed connection, measuring part and body movably connected, body motion on gas equipment's direction of height specifically can be relative. One part of the measuring part is positioned in the body, and the other part of the measuring part is positioned above the plate. The two ends of the elastic piece are respectively connected with the body and the measuring part, and the elastic piece is arranged between the body and the measuring part. In the working process, the measuring part is in contact with a vessel to be heated placed on the gas equipment, the pressure applied to the measuring part by the vessel to be heated forces the measuring part to move towards the direction close to the plate, so that the measuring part abuts against the bottom of the vessel to be heated, and meanwhile, the elastic piece is in a compressed state. When the utensil to be cooked is separated from the gas equipment, the elastic piece releases potential energy accumulated by the elastic piece and pushes the measuring part to return to the initial position, so that the automatic resetting of the measuring part is realized. Specifically, the gas-fired equipment is limited through the layout, so that the measuring part can be ensured to be in contact with the central region at the bottom of the heated vessel on the one hand, the temperature value of the heated vessel is accurately sensed through contact, and dry burning prevention early warning and dry burning prevention control can be realized by the gas-fired equipment according to the temperature value. On the other hand, but set up portable and automatic re-setting's measuring part and can promote the matching degree of temperature sensor and heated household utensils, reduce the measurement operation degree of difficulty, promote and measure the accuracy.

In the above technical solution, the gas equipment further includes: the second shell is connected with the first shell and is positioned in the flow channel; the second shell comprises a third through hole, and the support is connected with the second shell and is positioned in the third through hole.

In the technical scheme, a second shell is further arranged in the gas equipment, and the second shell is arranged in the flow channel and connected with the first shell. Wherein, be provided with the third through-hole on the second casing, and the support setting is in the third through-hole. After the connection of the first shell and the second shell is completed, the first shell and the second shell enclose and define a cavity in the region corresponding to the third through hole, on one hand, the cavity divides an assembly space for the support and the temperature sensor in the flow channel, the structural compactness of the gas equipment is improved, and the increase of the volume of the gas equipment due to the arrangement of the temperature sensor is avoided. On the other hand, the second shell can separate the runner and the cavity, avoids gas to flow to the third through hole, prevents that the gas equipment from being lighted in the third through hole. And then realize optimizing gas equipment structure, promote gas equipment structural compactness, promote the technical effect of gas equipment security and reliability.

In the above technical solution, the gas equipment further includes: the first boss is arranged on the second shell; the plate is sleeved on the second shell through the second through hole and abuts against the first boss.

In this technical solution, a connection structure between the panel and the second housing is defined. Specifically, the second shell is provided with a first boss, and the first boss is located on the outer side of the second shell. The shape of the second shell is matched with that of the second through hole in the plate. In the assembling process, the second shell is penetrated into the second through hole until the plate abuts against the first boss. Through setting up first boss, realized spacing between second casing and plate to ensure that the plate can accurately install on predetermined mounted position, avoid appearing assembly error. And then realize promoting gas equipment assembly precision, reduce the gas equipment assembly degree of difficulty, promote the technical effect of gas equipment structural stability and reliability.

In the above technical solution, the flow path includes: a first flow path section connected to the inlet for introducing and mixing air and gas; and a second flow path section connected to the outlet for diffusing and discharging the mixture of air and gas.

In the technical scheme, the structure of the flow channel is limited. Specifically, the flow channel comprises a first flow channel section and a second flow channel section which are communicated with each other. The first flow channel section is connected with the inlet of the flow channel and is the front section of the flow channel. The second flow passage section is connected with the outlet of the flow passage and is the tail section of the flow passage. In the working process, high-speed fuel gas is sprayed to the inlet of the flow channel, the flowing high-speed fuel gas reduces the gas pressure of the flowing area of the flow channel, so that surrounding air is forced to be pressed into the first flow channel section through the inlet, and the injection process is completed. The air and gas flowing into the first flow path segment mix in the first flow path segment to form a combustible mixture. When the mixture flows to the second flow passage section, the mixture can be diffused, the density is gradually reduced, after the density is reduced to a reasonable density interval for combustion, the mixture is discharged from the first through hole on the plate and is ignited, so that the plate is heated by heat generated by combustion, and the heated plate emits infrared rays. Through injecing above-mentioned runner structure, realized drawing of air on the one hand to remove and set up independent air pumping device from, with simplify the gas equipment structure and reduce gas equipment cost. On the other hand, the flow channel structure can fully mix gas and air, and ensure that the mixed gas can be continuously and stably combusted near the heating area. Thereby realizing the technical effects of optimizing the flow passage structure and improving the heating stability and reliability of the gas equipment.

In the above technical solution, the first flow path section includes: a first section connected to the inlet; a second segment connecting the first segment and the second flow channel segment; wherein, in the direction from the inlet to the outlet, the flow area of the first section part is gradually reduced, and the flow area of the second section part is constant.

In this technical solution, the structure of the first flow path segment is defined. Specifically, the first flow channel section comprises a first section part and a second section part which are communicated, the first section part is connected with the inlet and is a front section of the first flow channel section, and the flow area of the first flow channel section is gradually reduced in the direction from the inlet to the outlet. One end of the second section part is connected with the first section part, the other section of the second section part is connected with the second flow passage section and is the tail section of the first flow passage section, and the flow area of the second section part is constant in the direction from the inlet to the outlet. The first section is a contraction section, and the flow area of the first section is gradually reduced, so that the first section can compress the inflowing gas and air, and the air is smoothly pressed into the second section by means of high-speed flowing negative pressure. The second section is a mixing section in which the gas and the air being forced in are mixed, the gas transferring part of the kinetic energy into the air, so that the gas and the air being accelerated are mixed to a mixture, wherein the mixing of the air and the gas is facilitated by the constant flow area which defines the second section, so that a good quality combustible mixture is obtained. And then realize optimizing first flow path section structure, promote and draw the effect and mix the effect, promote the technical effect of gas equipment operational reliability and stability.

The first section can be a plurality of sections, and the plurality of first sections are communicated with the single second section. When being provided with a plurality of first sections, the entry correspondence of runner is a plurality of, and every first section all can realize drawing of air and penetrate to strengthen the injection efficiency of air and gas, and then promote gas equipment's heating efficiency.

In the above technical solution, the second flow path section includes: a third section connected to the outlet; a fourth segment connecting the third segment and the first flow path segment; the flow areas of the third section part and the fourth section part are gradually increased in the direction from the inlet to the outlet, and the change rate of the flow area of the third section part is larger than that of the flow area of the fourth section part.

In this technical solution, the structure of the second flow path section is defined. Specifically, the second flow path segment includes a third segment and a fourth segment in communication. One end of the fourth section part is connected with the first flow channel section, the other end of the fourth section part is connected with the fourth section part, the third section part is connected with the outlet, and the mixture of air and fuel gas is discharged to a specified position through the fourth section part and the third section part to be combusted. Wherein the flow area of the second flow channel section increases in a direction from the inlet to the outlet. The flow area of the second flow passage section is gradually increased, so that the second flow passage section can play a role of diffusion on the mixture flowing into the second flow passage section, and therefore on one hand, the mixture of gas and air can be uniformly filled in the second flow passage section, and on the other hand, the density of the mixture can be reduced, and meanwhile, the flow speed of the mixture can be reduced, and the mixture can flow out at a lower speed. And then realize optimizing second runner section structure, promote the technical effect of gas equipment operational reliability and stability.

On the basis that the whole flow area of the second flow channel section is gradually increased, the change rate of the flow area of the third section part is larger than that of the fourth section part, so that an enlarged bell mouth is formed at the tail end of the second flow channel section, when the mixture flows into the fourth section part, the high-density mixture is gradually diffused until the mixture flows into the third section part, the mixture is quickly diffused and fills the whole third section part, so that the uniform mixture is discharged from an outlet, the mixture can be stably combusted after being ignited, and the problems of flame turbulence, tempering and the like caused by uneven discharge of the mixture are avoided. And then realize optimizing second runner section structure, promote gas equipment's security and reliability, ensure the technical effect of user's personal safety.

In the above-described aspect, the fourth segment extends in the height direction of the gas combustion apparatus, and the first flow channel segment extends in the width direction perpendicular to the height direction.

In this solution, a flow channel layout is defined. Specifically, the first flow channel section extends in the width direction of the gas equipment, and the fourth section extends in the height direction of the gas equipment, so as to form a bent flow channel extending in the horizontal direction and the numerical direction, wherein the bent flow channel section is the third section.

The overall arrangement of gas equipment can be optimized to the runner of buckling, compare in the conventional horizontal structure of penetrating that draws, this application extends in the direction of height through setting up fourth section portion and partial third section portion, can reduce the shared space of gas equipment on width direction to the total width that makes the product that is provided with this gas equipment can reduce. Correspondingly, compared with a conventional vertical type injection structure, the gas equipment has the advantages that the total height of the gas equipment can be reduced by arranging the first flow channel section and part of the third section part in the width direction, so that the total height of a product provided with the gas equipment is reduced. And then realize optimizing gas equipment structure, promote gas equipment structure overall arrangement convenience and flexibility, widen gas equipment application scope's technological effect.

Wherein, through setting up the bending part in third section portion, can avoid the runner of buckling to influence the mixing effect of gas and air on the one hand, on the other hand can assist and strengthen the mixture deceleration diffusion effect of second runner section, makes the mixture after the diffusion discharge from the export with the speed that jet velocity is lower relatively to supply the burning. And then realize optimizing the runner structure, promote the runner and draw and penetrate reliability and stability, provide the technological effect of the condition of facilitating for the gas equipment structural layout.

In the above technical solution, in the width direction, the temperature sensor is avoided in the intersection area of the third section and the fourth section.

In this technical scheme, in the width direction of gas equipment, the central zone that temperature sensor is located is avoided to the region of meeting of third section and fourth section to realize structural dodging. During operation, the mixed gas in the fourth section flows into the fourth section from the periphery side of the third through hole, and is further diffused in the fourth section. Through setting up this structure of dodging, can make second casing, support and temperature sensor arrange at the central zone of fourth section portion to the structure is dodged and can also be avoided this area of meeting to raise the plate. And then realize promoting gas equipment structure compactness, reduce gas equipment occupation space, promote the technical effect of gas equipment structure overall arrangement convenience and flexibility.

In the above technical solution, in the extending direction of the first flow path section, the temperature sensor is located between the intersection region and the first flow path section.

In this technical solution, in line with the above technical solution, the structural layout of the third segment and the fourth segment is further defined. In particular, the first flow channel section extends in the width direction of the gas appliance. Wherein, in the extending direction of the first flow passage section, the second housing, the bracket and the temperature sensor are positioned between the intersection area and the first flow passage section. By limiting the structural relationship, the third section part is connected with one side of the fourth section part, and the other side of the fourth section part deflects towards the direction of the first flow channel section, so that the overlap ratio of the fourth section part and other flow channels in the width direction of the gas equipment is improved, and the space occupied by the gas equipment in the width direction is reduced. And then realize promoting gas equipment structure compactness, reduce gas equipment occupation space, promote the technical effect of gas equipment structure overall arrangement convenience and flexibility.

In the above technical solution, the first flow passage section and the second flow passage section both extend in the height direction of the gas fired device.

In this solution, another flow channel layout is defined. Specifically, in this structure, first runner section and second runner section all extend in the direction of height of gas equipment to form vertical drawing and penetrate the structure. In the working process, high-speed fuel gas is injected into the flow channel from an inlet at the bottom of the flow channel, and under the action of negative pressure formed by the high-speed fuel gas, external air is pressed into the flow channel and is fully mixed with the fuel gas. The mixed gas obtained by mixing is decelerated and diffused in the process of continuously flowing towards the top of the flow channel so as to form the mixed gas meeting the combustion requirement. By defining the flow channel to extend in the height direction, it is possible to avoid the flow channel occupying too much space in the width direction of the gas appliance. And then realize promoting the gas equipment structural compactness, reduce gas equipment occupation space, promote the technical effect of gas equipment structural configuration convenience and flexibility.

In the above technical solution, the gas equipment further includes: the second boss is arranged on the first shell and located in the flow channel, and the plate abuts against the second boss.

In the technical scheme, the second boss is arranged on the first shell and is arranged on the flow channel, the second boss is close to the outlet of the flow channel, and when the plate is assembled, the plate is embedded into the outlet of the flow channel until the plate abuts against the table top of the second boss to complete the assembly of the second boss. Can play limiting displacement to the plate through setting up the second boss, can avoid the plate to take place the incline in long-time working process with plate accurate positioning on operating position on the one hand, on the other hand can reduce the assembly degree of difficulty of plate, improves the assembly precision of plate, ensures that the plate can accurately install on the predetermined mounted position of first casing. And then realize optimizing gas equipment structure, promote gas equipment structural stability, promote gas equipment operational safety nature, reduce the technical effect of the gas equipment assembly degree of difficulty.

In the above technical solution, the gas equipment further includes: the positioning piece is connected with the first shell and is in contact with the plate, and the plate is located between the positioning piece and the second boss.

In the technical scheme, the gas equipment is also provided with a positioning piece. The positioning piece is connected with the first shell close to the outlet area, the positioning piece is in contact with the plate surface of the plate after connection is completed, the plate is located between the positioning piece and the first boss, meanwhile, the plate is located between the positioning piece and the second boss, and therefore the plate is tightly pressed on the first boss and the second boss through the positioning piece, and positioning installation of the plate on the first shell and the second shell is completed. Wherein, the setting element can be dismantled with the plate and link to each other, and when the plate broke down, user's accessible was dismantled the setting element and is realized the maintenance and the change to the plate to reduce gas equipment's the maintenance degree of difficulty, bring the convenient condition for the user.

Specifically, the positioning piece is of an annular structure matched with the shape of the outlet, the inner ring of the positioning piece covers the plate, the outer ring of the positioning piece is bent towards the side wall of the first shell of the outlet area and is connected with the side wall of the first shell, and therefore the plate is tightly pressed on the first boss and the second boss through the inner ring of the positioning piece. The setting element of this structure can compress tightly the plate at each angle, avoids appearing the gap between plate and first boss and second boss, prevents simultaneously that the plate from appearing the incline in long-term working process, and then realizes optimizing plate location structure, promotes the technical effect of gas equipment working safety nature and reliability.

In the above technical solution, the gas equipment further comprises: and the ignition device is connected with the first shell and is arranged opposite to the heating area.

In this technical scheme, still be provided with ignition on the gas equipment, ignition end and the export of ignition set up relatively, after the heating function of opening gas equipment, ignition ignites the mixture of the gas and the air of via first through-hole exhaust to through the zone of heating on the burning heating plate, after the temperature of the zone of heating is heated to the assigned temperature, the zone of heating is to sending infrared ray all around, thereby with the help of the infrared heating household utensils that the infrared heating that send, realizes gas equipment's infrared heating.

In particular, the ignition device is an electric igniter which, when it is necessary to ignite the mixture, emits an electric arc to ignite the mixture by means of the electric arc.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows one of the constructional schematics of a gas-fired device according to one embodiment of the invention;

fig. 2 shows a second schematic structural view of a gas-fired device according to an embodiment of the invention;

FIG. 3 shows a third schematic structural view of a gas-fired device according to an embodiment of the invention;

FIG. 4 shows a fourth schematic construction of a gas-fired appliance according to an embodiment of the invention;

FIG. 5 shows a fifth schematic structural view of a gas appliance according to an embodiment of the invention;

FIG. 6 shows a sixth schematic view of a gas-fired appliance according to an embodiment of the invention;

FIG. 7 shows a seventh schematic structural view of a gas-fired appliance according to an embodiment of the present invention;

wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:

100 gas equipment, 110 a first shell, 112 an inlet, 114 an outlet, 116 a second boss, 120 a runner, 122 a first runner section, 1222 a first section part, 1224 a second section part, 124 a second runner section, 1242 a third section part, 1244 a fourth section part, 130 plates, 132 a first through hole, 140 a temperature sensor, 142 a body, 144 a measuring part, 146 elastic parts, 150 a support, 160 a second shell, 162 a third through hole, 164 a first boss and 170 a positioning part.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A gas fired appliance 100 according to some embodiments of the present invention is described below with reference to fig. 1-7.

Example one

As shown in fig. 1 and fig. 2, a first embodiment of the present invention provides a gas appliance 100, where the gas appliance 100 includes: a first housing 110 including a flow passage 120 and an inlet 112 and an outlet 114 communicating with the flow passage 120; a plate 130 disposed at the outlet 114 and including a plurality of first through holes 132 communicating with the flow channel 120 to form a heating region on the plate 130; and a temperature sensor 140 connected to the plate 130, wherein a portion of the temperature sensor 140 is located above the plate 130 in a height direction of the gas appliance 100, for sensing a temperature of the heated vessel. Wherein, the heating zone is annular and is disposed around the temperature sensor 140.

In the gas appliance 100 provided by the present invention, the gas appliance 100 is provided with the first casing 110, and the first casing 110 is a frame structure of the gas appliance 100 and is used for protecting and carrying other structures on the gas appliance 100. Specifically, a flow passage 120 is provided in the first housing 110, and the flow passage 120 is used for flowing air and gas to guide the air and gas to a predetermined position and then to be ignited.

A plate 130 is also provided on the gas fired device 100. Specifically, the plate 130 is connected to the first housing 110 and covers the outlet 114 of the flow channel 120, and a plurality of first through holes 132 are formed in the plate 130, and the plurality of first through holes 132 are distributed on the plate 130 to form a heating area on the plate 130. During operation, the air and gas that have mixed in the flow passage 120 are discharged through the first through-holes 132 of the plate member 130. When the mixture flowing to the outside of the flow channel 120 through the first through hole 132 is ignited, the heating region where the first through hole 132 is disposed is heated by heat generated by combustion, and infrared rays are emitted when the temperature of the plate 130 is heated beyond a predetermined temperature value to heat the heated vessel disposed opposite to the plate 130 by the infrared rays, thereby implementing infrared ray heating for the heated vessel. Compared with the embodiment of heating the object to be heated by open fire, the infrared heating has more excellent heating efficiency and controllability, and higher safety.

In addition, the gas appliance 100 is provided with a temperature sensor 140. The temperature sensor 140 is connected to the plate member 130, and after the assembly of the temperature sensor 140 is completed, a part of the temperature sensor 140 is disposed above the plate member 130, that is, above the plate member 130 in the height direction of the gas appliance 100, and a part of the temperature sensor 140 is higher than the plate member 130. By disposing part of the temperature sensor 140 on top of the plate 130, the distance between the temperature sensor 140 and the heated vessel is shortened, so that the temperature sensor 140 can sense the temperature value of the heated vessel after the heated vessel is placed on top of the plate 130. The gas equipment 100 has the capability of monitoring the temperature value of the heated vessel by arranging the temperature sensor 140, so that the gas equipment 100 can judge whether the heated vessel is in a dry-burning state or not through the variation trend of the temperature value detected by the temperature sensor 140, and then timely sends out a dry-burning early warning or controls the heating area to stop heating the heated vessel after the heated vessel is determined to be in the dry-burning state. And then solve infrared burning cooking utensils and appear the technical problem because of the incident that dry combustion arouses easily, realize optimizing gas equipment 100 structures, promote the intelligent degree of gas equipment 100, strengthen the technical effect of gas equipment 100 security and reliability.

Specifically, a controller, an alarm device and a gas delivery device may also be disposed on the gas appliance 100. The controller is connected with the temperature sensor 140, the alarm device is connected with the controller, and when the controller determines that the gas appliance is in a dry-burning state currently according to the temperature value sensed by the temperature sensor 140, the controller controls the alarm device to give out a dry-burning alarm to remind a user to close the gas appliance 100 in time. A gas delivery device is connected to the inlet 112 of the flow passage 120 for delivering gas into the flow passage 120, and a controller is connected to the gas delivery device. When the controller determines that the gas equipment is in a dry-heating state currently according to the temperature value sensed by the temperature sensor 140, the controller controls the gas conveying device to stop conveying the gas so as to realize dry-heating prevention shutdown of the gas equipment 100.

The invention also defines, among other things, the arrangement of the heating zones and the temperature sensor 140 on the plate 130. The plurality of first through holes 132 are uniformly distributed in a certain annular region on the plate member 130 to form an annular heating zone on the plate member 130, forming a single ring infrared heating system. On this basis, temperature sensor 140 sets up the inner ring side in the cyclic annular zone of heating, through encircle the cyclic annular zone of heating and set up in temperature sensor 140's week side, can optimize the structural layout of gas equipment 100 on the one hand, promotes the compact structure degree of gas equipment 100 on the basis that satisfies the infrared heating of monocycle, avoids gas equipment 100 to occupy too much space. On the other hand, the temperature sensor 140 can detect the central area of the heated vessel, thereby improving the accuracy and reliability of the determination of the dry-burning state. Further, the technical effects of optimizing the structural layout of the gas equipment 100, reducing the space occupied by the installation of the gas equipment 100 and enhancing the safety and reliability of the gas equipment 100 are achieved.

Example two

As shown in fig. 2 and 3, in the second aspect embodiment of the present invention, the plate member 130 further includes a second through hole, and the gas apparatus 100 further includes: and a bracket 150 disposed in the second through hole, wherein the temperature sensor 140 is connected to the bracket 150.

In this embodiment, the plate 130 is further provided with a second through hole, and a plurality of first through holes 132 are arranged around the second through hole to arrange the second through hole at the inner circumferential side of the annular heating area. The gas appliance 100 is further provided with a bracket 150, the bracket 150 is disposed in the second through hole, and the temperature sensor 140 is disposed on the bracket 150. Through set up the second through-hole on plate 130, the non-heating area in plate 130 middle part can dodge temperature sensor 140 to inlay temperature sensor 140 and support 150 and establish in the second through-hole, with the compact structure degree that promotes gas equipment 100, reduce gas equipment 100's occupation space. By providing the bracket 150, the gas appliance 100 can be positioned and mounted in the second through hole of the plate 130 by means of the bracket 150, thereby improving the positioning reliability of the temperature sensor 140. The temperature sensor 140 is prevented from deviating from a predetermined mounting position during operation.

EXAMPLE III

In a third embodiment of the present invention, as shown in fig. 2 and 3, the temperature sensor 140 is disposed on the bracket 150, and a portion of the temperature sensor 140 is movable relative to the bracket 150.

In this embodiment, the bracket 150 is provided with a positioning hole, and the temperature sensor 140 is inserted into the positioning hole, so that the temperature sensor 140 is suspended in the second through hole, and the temperature sensor 140 can sense the temperature of the heated vessel area above the second through hole. On the basis, part of the temperature sensor 140 can move relative to the bracket 150, and after the heated vessel placed on the top of the plate 130 contacts the part of the temperature sensor 140, the part of the temperature sensor 140 can move relative to the bracket 150 to adaptively adjust the position of the temperature sensor 140 and ensure that the temperature sensor 140 can abut against the bottom of the heated vessel, thereby providing a convenient condition for sensing the temperature value of the heated vessel and improving the accuracy and reliability of temperature sensing.

Example four

As shown in fig. 2 and 3, in the fourth aspect embodiment of the present invention, the temperature sensor 140 includes: the body 142 is arranged on the bracket 150 in a penetrating way; a measuring part 144 provided on the body 142, the measuring part 144 being movable relative to the body 142 in a height direction of the gas appliance 100; the elastic member 146, connecting the body 142 and the measuring portion 144, is located between the body 142 and the measuring portion 144.

In this embodiment, the structure of the temperature sensor 140 is defined. Specifically, the temperature sensor 140 includes a body 142 and a measuring portion 144, the body 142 is disposed in the second through hole and fixedly connected to the bracket 150, and the measuring portion 144 is movably connected to the body 142 and specifically can move in the height direction of the gas appliance 100 relative to the body 142. One portion of the measuring portion 144 is located in the body 142, and the other portion of the measuring portion 144 is located above the plate 130. Both ends of the elastic member 146 are respectively connected to the body 142 and the measuring part 144, and the elastic member 146 is disposed between the body 142 and the measuring part 144. In operation, the measuring portion 144 contacts a vessel to be heated placed on the gas-fired device 100, and the pressure applied to the measuring portion 144 by the vessel to be heated forces the measuring portion 144 to move toward the plate 130, so that the measuring portion 144 abuts against the bottom of the vessel to be heated, and the elastic member 146 is in a compressed state. When the vessel to be cooked is separated from the gas appliance 100, the elastic member 146 releases the potential energy accumulated by itself, and pushes the measuring part 144 to return to the initial position, so as to realize the automatic resetting of the measuring part 144. Specifically, the above layout limitation can ensure that the measuring part 144 is in contact with the central region of the bottom of the heated vessel, so as to accurately sense the temperature value of the heated vessel through contact, and thus the gas-fired device 100 can realize dry-burning prevention early warning and dry-burning prevention control according to the temperature value. On the other hand, the movable and automatically resettable measuring part 144 is arranged, so that the matching degree of the temperature sensor 140 and the vessel to be heated can be improved, the measuring operation difficulty is reduced, and the measuring accuracy is improved.

EXAMPLE five

As shown in fig. 2 and 3, in the fifth aspect embodiment of the present invention, the gas appliance 100 further includes: a second housing 160 connected to the first housing 110 and located in the flow passage 120; the second housing 160 includes a third through hole 162, and the bracket 150 is connected to the second housing 160 and positioned in the third through hole 162.

In this embodiment, a second housing 160 is further disposed in the gas appliance 100, and the second housing 160 is disposed in the flow passage 120 and connected to the first housing 110. Wherein, the second casing 160 is provided with a third through hole 162, and the bracket 150 is disposed in the third through hole 162. After the first housing 110 and the second housing 160 are connected, the first housing 110 and the second housing 160 enclose a cavity in the region corresponding to the third through hole 162, and on one hand, the cavity divides an assembly space for the bracket 150 and the temperature sensor 140 in the flow channel 120, so that the structural compactness of the gas appliance 100 is improved, and the increase of the volume of the gas appliance 100 due to the arrangement of the temperature sensor 140 is avoided. On the other hand, the second housing 160 can separate the flow passage 120 and the cavity from the gas flowing into the third through hole 162, and prevent the gas appliance 100 from being ignited in the third through hole 162. Further, the technical effects of optimizing the structure of the gas equipment 100, improving the structural compactness of the gas equipment 100 and improving the safety and reliability of the gas equipment 100 are achieved.

Example six

As shown in fig. 2 and 3, in the sixth aspect of the embodiment of the present invention, the gas combustion apparatus 100 further includes: a first boss 164 provided on the second housing 160; the plate 130 is sleeved on the second housing 160 through the second through hole and abuts against the first boss 164.

In this embodiment, a connection structure between the plate member 130 and the second housing 160 is defined. Specifically, the second housing 160 is provided with a first boss 164, and the first boss 164 is located outside the second housing 160. The shape of the second housing 160 is adapted to the shape of the second through hole of the plate 130. During the assembly process, the second housing 160 is inserted into the second through hole until the plate 130 abuts against the first boss 164. Through setting up first boss 164, realized spacing between second casing 160 and plate 130 to ensure that plate 130 can accurately install on predetermined mounted position, avoid appearing assembly error. Thereby realizing the technical effects of improving the assembly precision of the gas equipment 100, reducing the assembly difficulty of the gas equipment 100 and improving the structural stability and reliability of the gas equipment 100.

EXAMPLE seven

As shown in fig. 2 and 5, in a seventh embodiment of the present invention, the flow passage 120 includes: a first flow path section 122 connected to the inlet 112 for introducing and mixing air and gas; and a second flow path section 124 connected to the outlet 114 for diffusing and discharging the mixture of air and gas.

In this embodiment, the structure of the flow passage 120 is defined. Specifically, the flow passage 120 includes a first flow passage section 122 and a second flow passage section 124 that are in communication. The first flow channel section 122 is connected to the inlet 112 of the flow channel 120 and is a front section of the flow channel 120. The second flow path segment 124 is connected to the outlet 114 of the flow path 120 and is the end segment of the flow path 120. During operation, high velocity gas is injected into the inlet 112 of the flow channel 120, and the flowing high velocity gas reduces the gas pressure in the flow region, thereby forcing ambient air to be forced into the first flow channel section 122 through the inlet 112 to complete the injection process. The air and fuel gas flowing into the first flow path segment 122 mix in the first flow path segment 122 to form a combustible mixture. When the mixture flows to the second flow path segment 124, the mixture is diffused and gradually reduced in density, and after the density is reduced to a reasonable density range for combustion, the mixture is discharged from the first through holes 132 of the plate member 130 and ignited, so that the plate member 130 is heated by the heat generated by combustion, and the heated plate member 130 emits infrared rays. Through limiting the structure of the flow passage 120, on one hand, the air injection is realized, so that an independent air pumping device is omitted, the structure of the gas equipment 100 is simplified, and the cost of the gas equipment 100 is reduced. On the other hand, the structure of the flow passage 120 can fully mix the gas and the air, and ensure that the mixed gas can be continuously and stably combusted near the heating area. Thereby realizing the technical effects of optimizing the structure of the flow channel 120 and improving the heating stability and reliability of the gas equipment 100.

Example eight

As shown in fig. 2 and 5, in the eighth aspect embodiment of the present invention, the first flow path segment 122 includes: a first section 1222 connected with the inlet 112; a second section 1224 connecting the first section 1222 and the second flow path section 124; wherein the flow area of the first section 1222 is gradually reduced and the flow area of the second section 1224 is constant in a direction from the inlet 112 to the outlet 114.

In this embodiment, the structure of the first flow path segment 122 is defined. Specifically, the first flow channel section 122 includes a first section 1222 and a second section 1224 that communicate with each other, the first section 1222 is connected to the inlet 112, is a front section of the first flow channel section 122, and the flow area of the first flow channel section 122 is gradually reduced in a direction from the inlet 112 to the outlet 114. One end of the second section 1224 is connected to the first section 1222, and the other section of the second section 1224 is connected to the second flow path section 124, which is the end section of the first flow path section 122, and the flow area of the second section 1224 is constant in the direction from the inlet 112 to the outlet 114. The first section 1222 is a constricted section, and the flow area of the first section 1222 is gradually reduced, so that the first section 1222 can compress the gas and air flowing in, and the air is smoothly pressed into the second section 1224 by the negative pressure flowing at a high speed. The second section 1224 is a mixing section where the gas and forced air mix in the second section 1224 and the gas transfers a portion of the kinetic energy to the air so that the slowed gas and accelerated air mix into a mixture, wherein the mixing of the air and gas is facilitated by the constant flow area defining the second section 1224 to obtain a good quality combustible mixture. And then realize optimizing first flow path section 122 structure, promote and draw the effect and mix the effect, promote the technical effect of gas equipment 100 operational reliability and stability.

The first section 1222 may be plural, and the plural first sections 1222 communicate with the single second section 1224. When a plurality of first segments 1222 are provided, the inlets 112 of the flow channel 120 are correspondingly plural, and each first segment 1222 can inject air, so as to enhance the injection efficiency of air and gas, and further improve the heating efficiency of the gas equipment 100.

Example nine

As shown in fig. 2 and 5, in the ninth aspect embodiment of the invention, the second flow path section 124 includes: a third section 1242 connected to the outlet 114; a fourth segment 1244 connecting third segment 1242 and first flow path segment 122; in a direction from the inlet 112 to the outlet 114, the flow areas of the third and fourth sections 1242 and 1244 gradually increase, and the rate of change of the flow area of the third section 1242 is greater than the rate of change of the flow area of the fourth section 1244.

In this embodiment, the structure of the second flow path segment 124 is defined. Specifically, the second flow passage section 124 includes a third section 1242 and a fourth section 1244 in communication. One end of the fourth section 1244 is connected to the first flow path section 122, the other end is connected to the fourth section 1244, the third section 1242 is connected to the outlet 114, and the mixture of air and gas is discharged to a designated position through the fourth section 1244 and the third section 1242 to be combusted. Wherein the flow area of the second flow path segment 124 increases in a direction from the inlet 112 to the outlet 114. By defining the flow area of the second flow channel section 124 to be gradually increased, the second flow channel section 124 can diffuse the mixture flowing into the second flow channel section 124, so that on one hand, the mixture of the gas and the air can uniformly fill the second flow channel section 124, and on the other hand, the density of the mixture can be reduced while the flow velocity of the mixture can be reduced, so as to ensure that the mixture can flow out at a lower velocity. And further, the structure of the second flow channel section 124 is optimized, and the technical effects of improving the working reliability and stability of the gas equipment 100 are achieved.

On the basis that the whole flow area of the second flow passage section 124 is gradually increased, the change rate of the flow area of the third section 1242 is larger than that of the fourth section 1244, so that an enlarged bell mouth is formed at the tail end of the second flow passage section 124, when the mixture flows into the fourth section 1244, the high-density mixture is gradually diffused until the mixture flows into the third section 1242, and then the mixture is rapidly diffused and fills the whole third section 1242, so that the uniform mixture is discharged from the outlet 114, the mixture can be stably combusted after being ignited, and the problems of flame turbulence, tempering and the like caused by uneven discharge of the mixture are avoided. And then realize optimizing second runner section 124 structure, promote the security and the reliability of gas equipment 100, ensure the technical effect of user's personal safety.

Example ten

As shown in fig. 2 and 5, in the tenth aspect embodiment of the invention, the fourth segment 1244 extends in the height direction of the gas appliance 100, and the first flow path segment 122 extends in the width direction perpendicular to the height direction.

In this embodiment, a flow channel 120 layout is defined. Specifically, the first flow channel section 122 extends in the width direction of the gas appliance 100, and the fourth section 1244 extends in the height direction of the gas appliance 100, so as to form the bent flow channel 120 extending in the horizontal direction and the numerical direction, respectively, and the section of the bent flow channel 120 is the third section 1242.

The overall arrangement of gas equipment 100 can be optimized to the runner 120 of buckling, and compared in the structure is drawn to conventional horizontal type, this application extends in the direction of height through setting up fourth section 1244 and part third section 1242, can reduce gas equipment 100 shared space in the width direction to the total width that makes the product that is provided with this gas equipment 100 can reduce. Accordingly, compared to the conventional vertical injection structure, the present application can reduce the total height of the gas appliance 100 by arranging the first flow path segment 122 and a part of the third segment 1242 in the width direction, thereby reducing the total height of the product provided with the gas appliance 100. And then realize optimizing gas equipment 100 structure, promote gas equipment 100 structural configuration convenience and flexibility, widen the technological effect of gas equipment 100 application scope.

Wherein, through setting up the bending part on third section 1242, can avoid bending runner 120 to influence the mixed effect of gas and air on the one hand, on the other hand can assist and strengthen the mixture deceleration diffusion effect of second runner section 124, make the mixture after the diffusion discharge from export 114 with drawing the lower speed of penetrating speed relatively for the burning. And then realize optimizing runner 120 structure, promote runner 120 and draw and penetrate reliability and stability, provide the technological effect of the condition of facilitating for gas equipment 100 structural configuration.

EXAMPLE eleven

As shown in fig. 2 and 5, in the eleventh aspect embodiment of the invention, the intersection area of the third and fourth sections 1242 and 1244 avoids the temperature sensor 140 in the width direction.

In this embodiment, in the width direction of the gas equipment 100, the intersection region of the third section 1242 and the fourth section 1244 avoids the central region where the temperature sensor 140 is located, so as to achieve structural avoidance. During operation, the mixed gas in the fourth segment 1244 flows into the fourth segment 1244 from the remaining portion of the periphery of the third through hole 162, and is further diffused in the fourth segment 1244. By providing the avoidance structure, the second housing 160, the bracket 150, and the temperature sensor 140 can be disposed in the central region of the fourth segment 1244, and the avoidance structure can also avoid the intersection region from raising the plate 130. Thereby realizing the technical effects of improving the structural compactness of the gas equipment 100, reducing the occupied space of the gas equipment 100 and improving the structural layout convenience and flexibility of the gas equipment 100.

Example twelve

In the twelfth aspect embodiment of the invention, as shown in fig. 4 and 5, the temperature sensor 140 is located between the intersection region and the first flow path segment 122 in the extending direction of the first flow path segment 122.

In this embodiment, in carrying out the previous embodiment, the structural layout of the third and fourth sections 1242, 1244 is further defined. Specifically, the first flow channel section 122 extends in the width direction of the gas apparatus 100. Wherein the second housing 160, the bracket 150, and the temperature sensor 140 are located between the above-mentioned intersection region and the first flow path segment 122 in the extending direction of the first flow path segment 122. By defining the structural relationship, the third section 1242 is connected to one side of the fourth section 1244, and the other side of the fourth section 1244 is deflected toward the direction of the first flow passage section 122, so as to improve the overlapping degree of the fourth section 1244 and the other flow passages 120 in the width direction of the gas appliance 100, thereby reducing the space occupied by the gas appliance 100 in the width direction. Thereby realizing the technical effects of improving the structural compactness of the gas equipment 100, reducing the occupied space of the gas equipment 100 and improving the structural layout convenience and flexibility of the gas equipment 100.

EXAMPLE thirteen

As shown in fig. 6 and 7, in the thirteenth aspect embodiment of the invention, the first flow passage section 122 and the second flow passage section 124 each extend in the height direction of the gas apparatus 100.

In this embodiment, another arrangement of flow channels 120 is defined. Specifically, in this structure, the first flow path section 122 and the second flow path section 124 each extend in the height direction of the gas appliance 100 to form a vertical injection structure. During operation, high-speed gas is injected into the flow channel 120 from the inlet 112 at the bottom of the flow channel 120, and under the negative pressure formed by the high-speed gas, external air is pressed into the flow channel 120 and is fully mixed with the gas. The mixed gas is decelerated and diffused while continuing to flow toward the top of the flow passage 120 to form a mixed gas satisfying combustion requirements. By defining the flow passage 120 to extend in the height direction, it is possible to avoid the flow passage 120 from occupying too much space in the width direction of the gas apparatus 100. Thereby realizing the technical effects of improving the structural compactness of the gas equipment 100, reducing the occupied space of the gas equipment 100 and improving the structural layout convenience and flexibility of the gas equipment 100.

Example fourteen

As shown in fig. 3 and 7, in the fourteenth embodiment of the aspect of the present invention, the gas appliance 100 further includes: and the second boss 116 is arranged on the first shell 110 and located in the flow passage 120, and the plate 130 abuts against the second boss 116.

In this embodiment, the first housing 110 is provided with the second boss 116, the second boss 116 is disposed on the flow channel 120, and the second boss 116 is close to the outlet 114 of the flow channel 120, when the plate 130 is assembled, the plate 130 is inserted into the outlet 114 of the flow channel 120 until the plate 130 abuts against the table surface of the second boss 116, and then the second boss 116 is assembled. The plate 130 can be limited by the second bosses 116, so that the plate 130 can be accurately positioned at the working position, the plate 130 is prevented from being deflected in the long-time working process, the assembling difficulty of the plate 130 can be reduced, the assembling precision of the plate 130 is improved, and the plate 130 can be accurately mounted at the preset mounting position of the first shell 110. Further, the structure of the gas equipment 100 is optimized, the structural stability of the gas equipment 100 is improved, the working safety of the gas equipment 100 is improved, and the technical effect of reducing the assembling difficulty of the gas equipment 100 is achieved.

Example fifteen

As shown in fig. 3 and 7, in the fifteenth aspect embodiment of the present invention, the gas combustion apparatus 100 further includes: the positioning member 170 is connected to the first housing 110 and contacts the plate 130, and the plate 130 is located between the positioning member 170 and the second boss 116.

In this embodiment, a positioning member 170 is further disposed on the gas appliance 100. The positioning member 170 is connected to the first housing 110 near the outlet 114, and after the connection is completed, the positioning member 170 contacts the plate surface of the plate member 130, so that the plate member 130 is located between the positioning member 170 and the first boss 164, and the plate member 130 is located between the positioning member 170 and the second boss 116, so that the plate member 130 is pressed against the first boss 164 and the second boss 116 by the positioning member 170, thereby completing the positioning and installation of the plate member 130 on the first housing 110 and the second housing 160. Wherein, setting element 170 can dismantle with plate 130 and link to each other, and when plate 130 broke down, user's accessible was dismantled setting element 170 and is realized maintaining and changing to plate 130 to reduce gas equipment 100's the maintenance degree of difficulty, bring the convenience for the user.

Specifically, the positioning member 170 is a ring-shaped structure adapted to the shape of the outlet 114, an inner ring of the positioning member 170 covers the plate 130, and an outer ring of the positioning member 170 is bent toward the side wall of the first housing 110 in the area of the outlet 114 and connected to the side wall of the first housing 110, so that the plate 130 is pressed against the first boss 164 and the second boss 116 by the inner ring of the positioning member 170. The positioning piece 170 of the structure can compress the plate 130 at each angle, so that gaps are prevented from appearing between the plate 130 and the first boss 164 and the second boss 116, and meanwhile, the plate 130 is prevented from deflecting in the long-term working process, so that the positioning structure of the plate 130 is optimized, and the technical effects of improving the working safety and reliability of the gas equipment 100 are achieved.

Example sixteen

In a sixteenth aspect embodiment of the present invention, the gas appliance 100 further comprises: and an ignition device connected to the first housing 110 and disposed opposite to the heating region.

In this embodiment, the gas appliance 100 is further provided with an ignition device, an ignition end of the ignition device is disposed opposite to the outlet 114, and after the heating function of the gas appliance 100 is started, the ignition device ignites a mixture of gas and air discharged through the first through hole 132, so that by burning a heating region on the heating plate 130, until the temperature of the heating region is heated to a specified temperature, the heating region emits infrared rays to the periphery, and thus the heated vessel is heated by means of the emitted infrared rays, thereby realizing infrared ray heating of the gas appliance 100.

In particular, the ignition device is an electric sparker, which emits an electric arc when it is necessary to ignite the mixture, so as to ignite the mixture by means of the electric arc.

Example seventeen

In a seventeenth aspect embodiment of the present invention, in the dry-heating prevention infrared gas apparatus 100:

the single-ring dry-burning-resistant infrared gas equipment 100 consists of a part of a shell corresponding to the third section 1242 of the furnace end, a plate 130, a positioning piece 170, a bracket 150 and a temperature sensor 140.

The plate 130 is placed on the burner and pressed against the seal by the positioning member 170. Bracket 150 is placed in a second through hole in the middle of plate member 130 and pressed against plate member 130, and temperature sensor 140 is passed out through a third through hole 162 in the middle of bracket 150.

The burner is of a horizontal injection structure, air inlets of a first section 1222, a second section 1224 and a fourth section 1244 of an injection pipe are transversely arranged, the fourth section 1244 deflects by 90 degrees to enable gas to enter a third section 1242 in the vertical direction, the injection pipe enters the third section 1242 from one side of the third section 1242 to reserve a position for the middle temperature sensor 140, the third section 1242 corresponding to the root of the injection pipe is deep, the third section 1242 on the side far away from the injection pipe is shallow, and a slope is formed from the depth to the shallow, so that the whole burner is conveniently filled with mixed gas of the gas and the air uniformly.

The plate 130 is an infrared heat generating carrier of cordierite substrate, and metal fiber or other infrared heat generating carrier may be used.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected", "mounted", "fixed", and the like are to be construed broadly and may include, for example, fixed connections, detachable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A gas-fired appliance, comprising:

the first shell comprises a flow passage, an inlet and an outlet which are communicated with the flow passage;

the plate is arranged at the outlet and comprises a plurality of first through holes communicated with the flow channel so as to form a heating area on the plate;

the temperature sensor is connected with the plate, and part of the temperature sensor is positioned above the plate in the height direction of the gas equipment and used for sensing the temperature of the heated vessel on the plate;

the heating area is annular and is arranged around the temperature sensor;

the flow path includes:

a first flow path section connected to the inlet for introducing and mixing air and gas;

a second flow path section connected to the outlet for diffusing and discharging the mixture of the air and the fuel gas;

the second flow path segment includes:

a third section connected to the outlet;

a fourth segment connecting the third segment and the first flow channel segment;

in the direction from the inlet to the outlet, the flow areas of the third section and the fourth section are gradually increased, and the change rate of the flow area of the third section is greater than that of the flow area of the fourth section.

2. The gas fired device of claim 1, wherein the plate further comprises a second through hole, the gas fired device further comprising:

the support is arranged in the second through hole, and the temperature sensor is connected with the support.

3. The gas fired equipment of claim 2, wherein said temperature sensor is disposed through said support and a portion of said temperature sensor is movable relative to said support.

4. The gas-fired apparatus of claim 2, wherein the temperature sensor comprises:

the body is arranged on the bracket in a penetrating way;

the measuring part is arranged on the body and can move relative to the body in the height direction of the gas equipment;

and the elastic piece is connected with the body and the measuring part and is positioned between the body and the measuring part.

5. The gas fired appliance of claim 2, further comprising:

the second shell is connected with the first shell and is positioned in the flow channel;

the second shell comprises a third through hole, and the support is connected with the second shell and is positioned in the third through hole.

6. The gas fired appliance of claim 5, further comprising:

the first boss is arranged on the second shell;

the plate is sleeved on the second shell through the second through hole and abuts against the first boss.

7. The gas fired plant of claim 1, said first flow path segment comprising:

a first segment connected to the inlet;

a second segment connecting the first segment and the second flow channel segment;

wherein the flow area of the first section decreases gradually and the flow area of the second section is constant in the direction from the inlet to the outlet.

8. The gas fired device of claim 1, wherein the fourth segment extends in a height direction of the gas fired device and the first flow channel segment extends in a width direction perpendicular to the height direction.

9. The gas fired device of claim 8, wherein in the width direction, a region of intersection of the third and fourth segments avoids the temperature sensor.

10. The gas fired device of claim 9, wherein the temperature sensor is located between the junction area and the first flow passage section in an extension direction of the first flow passage section.

11. The gas fired appliance of claim 1, wherein the first flow passage section and the second flow passage section each extend in a height direction of the gas fired appliance.

12. The gas appliance of any one of claims 1 to 11, further comprising:

and the second boss is arranged on the first shell and positioned in the flow channel, and the plate is abutted against the second boss.

13. The gas fired appliance of claim 12, further comprising:

the positioning piece is connected with the first shell and is in contact with the plate, and the plate is located between the positioning piece and the second boss.

14. The gas appliance of any one of claims 1 to 11, further comprising:

and the ignition device is connected with the first shell and is arranged opposite to the heating area.

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