Fire cover assembly, combustor and stove

Abstract

The invention provides a fire cover assembly, a combustor and a kitchen range, the fire cover assembly comprises a fire cover, an exhaust part and a flow guide part, the fire cover is provided with an air inlet and an inner cavity, and the air inlet is communicated with the inner cavity. The exhaust parts are connected with the fire cover and distributed in the circumferential direction of the fire cover, fire holes are formed between the side portions of the exhaust parts and the fire cover in the circumferential direction of the fire cover, and the fire holes communicate with the inner cavity. The flow guide parts are connected with the fire cover, the flow guide parts are arranged between every two adjacent exhaust parts, and the flow guide parts and the fire holes are oppositely arranged.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, and more particularly, to a burner head assembly, a burner, and a cooking appliance. Background Art

[0002] In gas appliances, the burner head bears the main function of burning fire. Based on the current distribution method of the fire holes on the burner head, the combustion efficiency of the flame is low, resulting in a high emission of carbon monoxide. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, in a first aspect, the present invention provides a burner head assembly, including: a burner head, an air inlet and an inner cavity are provided on the burner head, and the air inlet is communicated with the inner cavity; a plurality of exhaust parts, connected to the burner head, the plurality of exhaust parts are distributed along the circumference of the burner head, and a fire hole is formed between the side part of the exhaust part and the burner head along the circumference of the burner head, and the fire hole is communicated with the inner cavity; a flow guiding part, connected to the burner head, a flow guiding part is provided between two adjacent exhaust parts, and the flow guiding part is arranged opposite to the fire hole.

[0005] The mixed gas flow of gas and air can enter the inner cavity through the air inlet. Fire holes are provided between the exhaust parts and the burner head, and the gas flow in the inner cavity can be discharged through the fire holes. When the mixed gas flow is ignited, a flame can be formed at the position of the fire holes.

[0006] Along the circumference of the burner head, the fire holes are arranged at the side part of the exhaust part, so that a swirling flame can be formed on the burner head assembly. The combustion efficiency of the swirling flame is high, and the emission of carbon monoxide can be reduced.

[0007] A flow guiding part is provided on the burner head, and the flow guiding part is arranged opposite to the fire hole, that is, the flow guiding part and the fire hole appear in pairs. Therefore, the gas flow discharged from the fire hole can pass through the flow guiding part, and the flow guiding part is used to guide the gas flow discharged from the fire hole in a direction away from the burner head.

[0008] When the burner head assembly is in use, the flow guiding part can guide the flame generated on the burner head assembly. By setting the flow guiding part opposite to the fire hole, the flame stiffness can be increased, and the flame can be prevented from burning against the wall. In this case, the heat conducted from the flame to the burner head can be reduced, so that most of the heat of the flame can be used to heat the cooking appliance, which is beneficial to improving the heating efficiency of the burner head assembly.

[0009] In addition, according to the burner head assembly provided by the above technical solution of the present invention, the following additional technical features may also be provided:

[0010] In some technical solutions, optionally, the first end of the exhaust portion is connected to the burner cap; the included angle between the extension direction of the second end of the exhaust portion and the burner cap is α1, and the included angle between the side of the flow guiding portion facing the flame holes and the burner cap is α2, satisfying α1 ≤ α2.

[0011] An included angle is provided between the extension direction of the second end of the exhaust portion and the burner cap, such that the flame holes are in the form of side air outlets.

[0012] It should be noted that when the exhaust portion is a straight plate-shaped structure, assuming the direction from the first end to the second end of the exhaust portion is the width direction of the exhaust portion, then the extension direction of the second end of the exhaust portion is the same as the width direction of the exhaust portion. When the entire exhaust portion is a curved structure, or the second end of the exhaust portion is part of a curved structure, the tangent direction of the second end of the exhaust portion is the extension direction of the second end of the exhaust portion.

[0013] For the convenience of description, the included angle between the extension direction of the second end of the exhaust portion and the burner cap is named the first included angle, and the included angle between the side of the flow guiding portion facing the flame holes and the burner cap is named the second included angle. Since the second included angle is greater than or equal to the first included angle, the inclination angle of the first side of the flow guiding portion is equal to the inclination angle of the second end of the exhaust portion, or the inclination angle of the second side of the flow guiding portion is greater than the inclination angle of the second end of the exhaust portion. Therefore, the flow guiding portion can guide the flame away from the burner cap.

[0014] Exemplarily, the first included angle is 30°. If the second included angle is less than 30°, for example, the second included angle is 20°, due to the smaller second included angle, the flow guiding portion cannot effectively guide the flame away from the burner cap, resulting in a lower height of a part of the flame and being unable to effectively solve the problem of wall-attached combustion. Therefore, setting the second included angle greater than or equal to the first included angle can effectively prevent the flame from wall-attached combustion and improve the heating efficiency of the burner cap assembly.

[0015] In some technical solutions, optionally, the length direction of the flow guiding portion is the same as the length direction of the exhaust portion.

[0016] The burner cap has an axis. The first side of the flow guiding portion faces the axis, and the second side of the flow guiding portion faces away from the axis. Therefore, the direction from the first side to the second side of the flow guiding portion is the length direction of the flow guiding portion. Similarly, the first side of the exhaust portion faces the axis, and the second side of the exhaust portion faces away from the axis. The direction from the first side to the second side of the exhaust portion is the length direction of the exhaust portion.

[0017] The length direction of the flow guiding portion is arranged in the same direction as the length direction of the exhaust portion. Therefore, on one side of the exhaust portion in the extension direction of the exhaust portion, a flow guiding portion is provided, such that the flame burning at the flame holes can effectively guide the exhaust portion.

[0018] In a possible application, the length of the flow guiding portion is greater than or equal to the length of the exhaust portion.

[0019] In some technical solutions, optionally, from the first end to the second end of the exhaust part, the distance between the exhaust part and the burner cap increases.

[0020] From the first end to the second end of the exhaust part, the distance between the exhaust part and the burner cap gradually increases, and the air flow can smoothly discharge from the flame holes. By changing the inclination angle of the exhaust part relative to the burner cap, the discharge direction of the gas can be changed. Since the distance between the exhaust part and the burner cap gradually increases, the slope of the exhaust part relative to the burner cap can be set to be constant, and thus it is convenient to determine the discharge direction of the air flow.

[0021] In some technical solutions, optionally, the guiding part includes: a protrusion, the first side of the protrusion faces the flame hole, and there is an included angle between the second side of the protrusion and the burner cap.

[0022] The first side of the protrusion faces the flame hole, the second side of the protrusion faces away from the flame hole, and the first side of the protrusion can guide the flame to prevent the flame from burning against the wall.

[0023] Among two adjacent exhaust parts, one exhaust part is located on the first side of the protrusion, and the other exhaust part is located on the second side of the protrusion. Since there is an included angle between the second side of the protrusion and the burner cap, an eddy space will be formed between the second side of the protrusion and the other exhaust part. When a flame is generated on the burner cap assembly, an eddy will be generated in the eddy space. By the above method, it is beneficial to stabilize the root of the flame, thereby promoting combustion in a narrow space, reducing the height of the flame, and thus reducing the distance between the bottom of the cooking appliance and the flame holes, which is beneficial to improving energy efficiency.

[0024] In some technical solutions, optionally, the slope of the first side of the protrusion relative to the burner cap is equal to the slope of the exhaust part.

[0025] The first side of the protrusion faces the flame hole, and the inclination angle of the first side of the protrusion relative to the burner cap is equal to the inclination angle of the exhaust part relative to the burner cap. Therefore, the exhaust part is not likely to change the outflow direction of the air flow, and thus will not cause the phenomenon of "bending" the flame, which is beneficial to improving the combustion stability of the flame.

[0026] In some technical solutions, optionally, the exhaust part includes: a first exhaust part, the first end of the first exhaust part is connected to the burner cap; a second exhaust part, the first end of the second exhaust part is connected to the second end of the first exhaust part, and the second exhaust part is bent towards the burner cap relative to the first exhaust part.

[0027] The first exhaust portion is connected to the fire cover, the second exhaust portion is connected to the first exhaust portion, and the first exhaust portion is located between the fire cover and the second exhaust portion. The second exhaust portion is bent toward the fire cover compared to the first exhaust portion, and the second exhaust portion determines the direction of the airflow. The first exhaust portion can extend perpendicular to the fire cover, or the first exhaust portion and the fire cover assembly have a small angle, and the first exhaust portion extends away from the fire cover to avoid the problem of the first exhaust portion having a large inclination angle and interfering with other structures. When the extension length of the first exhaust portion is sufficient to avoid other structures, the second exhaust portion is set to be bent compared to the first exhaust portion, thereby changing the direction of the airflow.

[0028] In some technical solutions, optionally, a portion of the fire cover is bent to form a guide portion, so that a fire hole is formed between the exhaust portion and the guide portion.

[0029] A through hole is provided on the fire cover, and the through hole is connected with the inner cavity, and the airflow in the inner cavity is discharged through the through hole, and then flows to the fire hole to be discharged outward. A guide part is provided at the position of the through hole, so when processing the fire cover, it can be stamped from the inside to the outside to bend a part of the fire cover to form the guide part, and the above can improve the processing convenience of the guide part.

[0030] The airflow exhausted from the inner cavity now flows between the first exhaust portion and the air guide portion, and then is exhausted through the fire hole between the second exhaust portion and the air guide portion.

[0031] In some technical solutions, optionally, the first end of the guide part is connected to the fire cover, the distance between the second end of the guide part and the fire cover is L1, the distance between the second end of the first exhaust part and the fire cover is L2, and L2>L1.

[0032] The distance between the second end of the first exhaust part and the fire cover is large, and the distance between the second end of the guide part and the fire cover is small. Therefore, when the extension length of the first exhaust part is sufficient to avoid the guide part, in this case, even if the second exhaust part is bent compared to the first exhaust part, the second exhaust part will not interfere with the guide part, thereby ensuring the discharge stability of the airflow and further improving the combustion stability.

[0033] The second exhaust portion is arranged to be bent compared to the first exhaust portion, thereby changing the outlet direction of the airflow.

[0034] In some technical schemes, optionally, the fire cover has a top wall and a bottom wall, the top wall is provided with an inclined surface, and the exhaust part is provided on the inclined surface; the fire cover has an axis, and the distance between the inclined surface and the bottom wall decreases from the side of the inclined surface away from the axis to the side facing the axis.

[0035] The inclined surface is inclined towards the axis. Therefore, the flame formed by the multiple first flame holes is a converging swirling flame. When viewed from the side, the flame converges, and when viewed from the top downwards, the flame rotates and rises. The greatest advantage of this structure is that the heat is concentrated and the energy efficiency is relatively high, which can greatly improve the thermal efficiency.

[0036] In some technical solutions, optionally, the burner cap assembly includes a stainless steel burner cap assembly.

[0037] The burner cap assembly is made of stainless steel material, specifically thin stainless steel. Less overall material is used, and it is a cold-treated material. During the processing of the burner cap assembly, the carbon emissions are relatively small, which is in line with the global trend of carbon emissions development.

[0038] In some technical solutions, optionally, the burner cap assembly includes an annular burner cap assembly.

[0039] The burner cap assembly is of an annular structure. Therefore, multiple flame holes are distributed in a ring shape. Moreover, since the burner cap assembly is annular, an air supplement channel can be formed in the middle of the burner cap assembly. When the air flow is ejected through the flame holes, driven by the air flow, the gas in the air supplement channel will start to flow, forming an air supplement air flow. External gas gradually flows into the air supplement channel, enabling the air supplement air flow to supplement the air flow discharged from the flame holes and providing sufficient oxidant for combustion. By providing an air supplement channel on the burner cap assembly, the problem of incomplete combustion can be avoided, and the combustion sufficiency of the gas can be improved.

[0040] In a second aspect, the present invention provides a burner, comprising: an air intake assembly provided with an air intake channel; and a burner cap assembly as in the first aspect, the burner cap assembly being connected to the air intake assembly, and the air intake port being in communication with the air intake channel.

[0041] The air intake assembly is used to connect to the gas supply end. The gas from the gas supply end flows through the air intake channel towards the burner cap. The air intake port on the burner cap is in communication with the air intake channel. Therefore, the mixed air flow of gas and air can enter the inner cavity through the air intake port. Multiple flame holes are provided on the burner cap, and the air flow in the inner cavity can be discharged through the flame holes. When the mixed air flow is ignited, a flame is formed at the position of the flame holes.

[0042] In some technical solutions, optionally, the air intake assembly includes: a fixed seat; a nozzle connected to the fixed seat; and a drainage pipe connected to the fixed seat. The drainage pipe is provided with a drainage inlet, an air intake channel, and a drainage outlet. The drainage inlet and the drainage outlet are in communication with the air intake channel. Along the length direction of the drainage pipe, the nozzle and the drainage inlet are spaced apart.

[0043] The nozzle is installed on the fixed seat. A flow channel is arranged inside the fixed seat. The flow channel is communicated with the nozzle. The gas at the gas supply end of the gas flows through the flow channel to the nozzle. The nozzle sprays the gas towards the diversion inlet. The nozzle is directly opposite to the diversion inlet, and at the same time, a certain gap is ensured between the nozzle and the diversion inlet. When the gas sprays towards the diversion inlet, due to the spaced arrangement of the nozzle and the diversion inlet, the gas can drive the external gas to flow into the intake passage, so that the mixed gas formed by the gas and the external gas can flow into the intake passage together, realizing the function of air supplement.

[0044] In a third aspect, the present invention provides a cooking appliance, including: the burner as in the second aspect.

[0045] The additional aspects and advantages of the present invention will become apparent in the following description section, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0047] Figure 1 FIG. 1 shows one of the schematic structural diagrams of the burner in the embodiment of the present invention;

[0048] Figure 2 FIG. 2 shows another schematic structural diagram of the burner in the embodiment of the present invention;

[0049] Figure 3 FIG. 3 shows still another schematic structural diagram of the burner in the embodiment of the present invention;

[0050] Figure 4 FIG. 4 shows yet another schematic structural diagram of the burner in the embodiment of the present invention;

[0051] Figure 5 FIG. 5 shows one of the schematic structural diagrams of the burner cap assembly in the embodiment of the present invention;

[0052] Figure 6 FIG. 6 shows another schematic structural diagram of the burner cap assembly in the embodiment of the present invention;

[0053] Figure 7 FIG. 7 shows still another schematic structural diagram of the burner cap assembly in the embodiment of the present invention;

[0054] Figure 8 FIG. 8 shows yet another schematic structural diagram of the burner cap assembly in the embodiment of the present invention.

[0055] Reference numerals:

[0056] 100 Burner cap, 111 Air inlet, 112 Through hole, 120 Inner cavity, 130 Flame hole, 150 Exhaust part, 151 First exhaust part, 152 Second exhaust part, 160 Flow guide part, 161 Protrusion, 170 Top wall, 180 Bottom wall, 190 Inclined surface, 200 Air intake assembly, 210 Fixed seat, 220 Nozzle, 230 Drainage pipe, 231 Drainage inlet, 232 Air intake channel, 233 Drainage outlet. Detailed implementation manners

[0057] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0058] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0059] The following refers to Figures 1 to 8 Describe a burner cap assembly, a burner and a cooking appliance provided according to some embodiments of the present invention.

[0060] Combined with Figure 1 、 Figure 5 And Figure 7 As shown, in an embodiment of the present invention, a burner cap assembly is proposed, including: a burner cap 100, an exhaust part 150 and a flow guide part 160. An air inlet 111 and an inner cavity 120 are provided on the burner cap 100, and the air inlet 111 is communicated with the inner cavity 120. The exhaust part 150 is connected to the burner cap 100, and a plurality of exhaust parts 150 are distributed along the circumferential direction of the burner cap 100 ( Figure 5 In, the direction pointed by arrow a is the circumferential direction of the burner cap 100), along the circumferential direction of the burner cap 100, a flame hole 130 is formed between the side part of the exhaust part 150 and the burner cap 100, and the flame hole 130 is communicated with the inner cavity 120. The flow guide part 160 is connected to the burner cap 100, and a flow guide part 160 is provided between two adjacent exhaust parts 150, and the flow guide part 160 is disposed opposite to the flame hole 130.

[0061] The mixed gas flow of gas and air can enter the inner cavity 120 through the air inlet 111. A flame hole 130 is provided between the exhaust part 150 and the burner cap 100, and the gas flow in the inner cavity 120 can be discharged through the flame hole 130. When the mixed gas flow is ignited, a flame can be formed at the position of the flame hole 130.

[0062] Along the circumferential direction of the burner cap 100, the flame hole 130 is provided at the side part of the exhaust part 150, so that a swirling flame can be formed on the burner cap assembly. The swirling flame has a high combustion efficiency and can reduce the emission of carbon monoxide.

[0063] A flow guiding portion 160 is provided on the burner cap 100. The flow guiding portion 160 is disposed opposite to the flame holes 130, that is, the flow guiding portion 160 and the flame holes 130 appear in pairs. Therefore, the air flow discharged from the flame holes 130 can pass through the flow guiding portion 160, and the flow guiding portion 160 is used to guide the air flow discharged from the flame holes 130 in a direction away from the burner cap 100.

[0064] When the burner cap assembly is in use, the flow guiding portion 160 can guide the flame generated on the burner cap assembly. By setting the flow guiding portion 160 opposite to the flame holes 130, the flame stiffness can be increased, and the wall-attached combustion of the flame can be avoided. In this case, the heat conducted from the flame to the burner cap 100 can be reduced, so that most of the heat of the flame can be used to heat the cooking appliance, which is beneficial to improving the heating efficiency of the burner cap assembly.

[0065] Combined with Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown in

[0066] An included angle is provided between the extending direction of the second end of the exhaust portion 150 and the burner cap 100, so that the flame holes 130 are in the form of side air outlets.

[0067] It should be noted that when the exhaust portion 150 is in a straight plate structure, the direction from the first end to the second end of the exhaust portion 150 is defined as the width direction of the exhaust portion 150, then the extending direction of the second end of the exhaust portion 150 is the same as the width direction of the exhaust portion 150. When the exhaust portion 150 is in an overall curved structure, or the second end of the exhaust portion 150 is a part of a curved structure, the tangent direction of the second end of the exhaust portion 150 is the extending direction of the second end of the exhaust portion 150.

[0068] For the convenience of description, the included angle between the extending direction of the second end of the exhaust portion 150 and the burner cap 100 is named the first included angle, and the included angle between the side of the flow guiding portion 160 facing the flame holes 130 and the burner cap 100 is named the second included angle. Since the second included angle is greater than or equal to the first included angle, the inclination angle of the first side of the flow guiding portion 160 is equal to the inclination angle of the second end of the exhaust portion 150, or the inclination angle of the second side of the flow guiding portion 160 is greater than the inclination angle of the second end of the exhaust portion 150. Therefore, the flow guiding portion 160 can guide the flame in a direction away from the burner cap 100.

[0069] Exemplarily, the first included angle is 30°. If the second included angle is less than 30°, for example, the second included angle is 20°, due to the small second included angle, the flow guiding part 160 cannot effectively guide the flame away from the burner cap 100, resulting in a lower height of a part of the flame and failing to effectively solve the problem of wall-attached combustion. Therefore, setting the second included angle to be greater than or equal to the first included angle can effectively prevent the flame from burning against the wall and improve the heating efficiency of the burner cap assembly.

[0070] It should be noted that for the convenience of labeling α1, α1 is labeled at the diagonal position of the first included angle.

[0071] As Figure 5 shown, in some embodiments, optionally, the length direction of the flow guiding part 160 is the same as the length direction of the exhaust part 150 ( Figure 5 in the figure, the direction indicated by the arrow b is the length direction of the flow guiding part 160).

[0072] The burner cap 100 has an axis A. The first side of the flow guiding part 160 faces the axis A, and the second side of the flow guiding part 160 faces away from the axis A. Therefore, the length direction of the flow guiding part 160 is from the first side of the flow guiding part 160 to the second side of the flow guiding part 160. Similarly, the first side of the exhaust part 150 faces the axis A, the second side of the exhaust part 150 faces away from the axis A, and the length direction of the exhaust part 150 is from the first side of the exhaust part 150 to the second side of the exhaust part 150.

[0073] The length direction of the flow guiding part 160 is arranged in the same direction as the length direction of the exhaust part 150. Therefore, on one side of the exhaust part 150 in its extending direction, the flow guiding part 160 is provided, enabling the flame burning at the flame holes 130 to effectively guide the exhaust part 150.

[0074] In a possible application, the length of the flow guiding part 160 is greater than or equal to the length of the exhaust part 150.

[0075] As Figure 7 shown, in some embodiments, optionally, from the first end of the exhaust part 150 to the second end of the exhaust part 150, the distance between the exhaust part 150 and the burner cap 100 increases.

[0076] From the first end of the exhaust part 150 to the second end of the exhaust part 150, the distance between the exhaust part 150 and the burner cap 100 gradually increases, enabling the air flow to smoothly discharge from the flame holes 130. By changing the inclination angle of the exhaust part 150 relative to the burner cap 100, the discharge direction of the gas can be changed. Since the distance between the exhaust part 150 and the burner cap 100 gradually increases, the slope of the exhaust part 150 relative to the burner cap 100 can be set to be constant, thereby facilitating the determination of the discharge direction of the air flow.

[0077] As Figure 7As shown, in some embodiments, optionally, the flow guiding portion 160 includes: a protrusion 161. The first side of the protrusion 161 faces the flame hole 130, and there is an included angle between the second side of the protrusion 161 and the burner cap 100.

[0078] The first side of the protrusion 161 faces the flame hole 130, the second side of the protrusion 161 faces away from the flame hole 130, and the first side of the protrusion 161 can guide the flow of the flame to prevent the flame from burning against the wall.

[0079] Among two adjacent exhaust portions 150, one exhaust portion 150 is located on the first side of the protrusion 161, and the other exhaust portion 150 is located on the second side of the protrusion 161. Since there is an included angle between the second side of the protrusion 161 and the burner cap 100, a vortex space will be formed between the second side of the protrusion 161 and the other exhaust portion 150. When a flame is generated on the burner cap assembly, a vortex will be generated in the vortex space. Through the above method, it is beneficial to stabilize the root of the flame, thereby promoting combustion in a narrow space, reducing the height of the flame, and thus reducing the distance between the bottom of the cooking appliance and the flame hole 130, which is beneficial to improving energy efficiency.

[0080] Figure 6 In [the figure], the curve pointed by the arrow c is used to illustrate the direction of the vortex, the curve pointed by the arrow d is used to illustrate the flow direction of the mixed gas, and the curve pointed by the arrow e is used to illustrate the flow direction of the secondary air.

[0081] As Figure 7 shown, in some embodiments, optionally, the slope of the first side of the protrusion 161 with respect to the burner cap 100 is equal to the slope of the exhaust portion 150.

[0082] The first side of the protrusion 161 faces the flame hole 130, and the inclination angle of the first side of the protrusion 161 with respect to the burner cap 100 is equal to the inclination angle of the exhaust portion 150 with respect to the burner cap 100. Therefore, the exhaust portion 150 is not likely to change the outflow direction of the air flow, and thus will not cause the phenomenon of "bending" the flame, which is beneficial to improving the combustion stability of the flame.

[0083] Combined with Figure 7 and Figure 8 shown, in some embodiments, optionally, the exhaust portion 150 includes: a first exhaust portion 151, the first end of the first exhaust portion 151 is connected to the burner cap 100; a second exhaust portion 152, the first end of the second exhaust portion 152 is connected to the second end of the first exhaust portion 151, and the second exhaust portion 152 is bent relative to the first exhaust portion 151 towards the burner cap 100.

[0084] The first exhaust part 151 is connected to the burner cap 100, the second exhaust part 152 is connected to the first exhaust part 151, and the first exhaust part 151 is located between the burner cap 100 and the second exhaust part 152. The second exhaust part 152 is bent towards the burner cap 100 compared with the first exhaust part 151, and the second exhaust part 152 determines the direction of the air flow. The first exhaust part 151 can extend perpendicular to the burner cap 100, or the first exhaust part 151 has a small angle with the burner cap assembly, and the first exhaust part 151 extends away from the burner cap 100 to avoid the problem that the inclination angle of the first exhaust part 151 is too large and interferes with other structures. When the extension length of the first exhaust part 151 is sufficient to avoid other structures, the second exhaust part 152 is set to be bent compared with the first exhaust part 151, so as to change the direction of the air flow.

[0085] As Figure 8 shown, in some embodiments, optionally, a part of the burner cap 100 is bent to form a flow guiding part 160, so as to form a flame hole 130 between the exhaust part 150 and the flow guiding part 160.

[0086] A through hole 112 is provided on the burner cap 100, and the through hole 112 is communicated with the inner cavity 120. The air flow in the inner cavity 120 is discharged through the through hole 112, and then flows to the flame hole 130 and is discharged outward. A flow guiding part 160 is provided at the position of the through hole 112. Therefore, when the burner cap 100 is processed, it can be stamped from the inside to the outside, so that a part of the burner cap 100 is bent to form the flow guiding part 160. Through the above, the processing convenience of the flow guiding part 160 can be improved.

[0087] The air flow discharged from the inner cavity 120 now flows between the first exhaust part 151 and the flow guiding part 160, and then is discharged through the flame hole 130 between the second exhaust part 152 and the flow guiding part 160.

[0088] As Figure 8 shown, in some embodiments, optionally, the first end of the flow guiding part 160 is connected to the burner cap 100, the distance between the second end of the flow guiding part 160 and the burner cap 100 is L1, the distance between the second end of the first exhaust part 151 and the burner cap 100 is L2, and L2 > L1.

[0089] The distance between the second end of the first exhaust part 151 and the burner cap 100 is large, and the distance between the second end of the flow guiding part 160 and the burner cap 100 is small. Therefore, when the extension length of the first exhaust part 151 is sufficient to avoid the flow guiding part 160, in this case, even if the second exhaust part 152 is bent compared with the first exhaust part 151, the second exhaust part 152 will not interfere with the flow guiding part 160, so as to ensure the discharge stability of the air flow, and further improve the combustion stability.

[0090] The second exhaust part 152 is bent relative to the first exhaust part 151, thereby changing the direction of the exhaust air flow.

[0091] As Figure 1 shown, in some embodiments, optionally, the burner cap 100 has a top wall 170 and a bottom wall 180. An inclined surface 190 is provided on the top wall 170, and the exhaust part 150 is arranged on the inclined surface 190. The burner cap 100 has an axis A. From the side of the inclined surface 190 away from the axis A to the side towards the axis A, the distance between the inclined surface 190 and the bottom wall 180 decreases.

[0092] The inclined surface 190 inclines towards the axis A. Therefore, the flames formed by the plurality of first fire holes 130 are convergent swirling flames. When viewed from the side, the flames converge, and when viewed from the top downwards, the flames rotate and rise. The greatest advantage of this structure is that the heat is concentrated, the energy efficiency is relatively high, and the thermal efficiency can be greatly improved.

[0093] In some embodiments, optionally, the burner cap assembly includes a stainless - steel burner cap assembly.

[0094] The burner cap assembly is made of stainless - steel material, specifically thin stainless - steel. The overall material usage is small, and it is a cold - treated material. During the processing of the burner cap assembly, the carbon emissions are relatively small, which is in line with the global carbon - emission development trend.

[0095] Combined Figure 2 and Figure 5 shown, in some embodiments, optionally, the burner cap assembly includes an annular burner cap assembly.

[0096] The burner cap assembly is of an annular structure. Therefore, the plurality of fire holes 130 are all annularly distributed. Moreover, since the burner cap assembly is annular, an air - supplementing channel can be formed in the middle of the burner cap assembly. When the air flow ejects through the fire holes 130, driven by the air flow, the gas in the air - supplementing channel starts to flow, forming an air - supplementing air flow. The external gas gradually flows into the air - supplementing channel, so that the air - supplementing air flow can supplement the air flow discharged from the fire holes 130, providing sufficient oxidant for combustion. By providing an air - supplementing channel on the burner cap assembly, the problem of incomplete combustion can be avoided, and the combustion sufficiency of the gas can be improved.

[0097] Combined Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, in the embodiments of the present invention, a burner is proposed, which includes: an air - intake assembly 200 and the burner cap assembly in any of the above - mentioned embodiments. The air - intake assembly 200 is provided with an air - intake channel 232. The burner cap assembly is connected to the air - intake assembly 200, and the air - intake port 111 is communicated with the air - intake channel 232.

[0098] The intake assembly 200 is used to connect to the gas supply end. The gas from the gas supply end flows through the intake channel 232 to the burner cap 100. The intake port 111 on the burner cap 100 is in communication with the intake channel 232. Therefore, the mixed gas flow of gas and air can enter the inner cavity 120 through the intake port 111. A plurality of flame holes 130 are provided on the burner cap 100, and the gas flow in the inner cavity 120 can be discharged through the flame holes 130. When the mixed gas flow is ignited, a flame is formed at the position of the flame holes 130.

[0099] A diversion part 160 is provided on the burner cap 100. The diversion part 160 is disposed opposite to the flame holes 130, that is, the diversion part 160 and the flame holes 130 appear in pairs. Therefore, the gas flow discharged from the flame holes 130 can pass through the diversion part 160, and the diversion part 160 is used to divert the gas flow discharged from the flame holes 130 in a direction away from the burner cap 100.

[0100] When the burner cap assembly is in use, the diversion part 160 can divert the flame generated on the burner cap assembly. By setting the diversion part 160 opposite to the flame holes 130, the flame stiffness can be increased, and the flame can be prevented from burning against the wall. In this case, the heat conducted from the flame to the burner cap 100 can be reduced, so that most of the heat of the flame can be used to heat the cooking appliance, which is beneficial to improving the heating efficiency of the burner cap assembly.

[0101] Combined Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in [relevant figures], in some embodiments, optionally, the intake assembly 200 includes: a fixed seat 210, a nozzle 220, and a diversion pipe 230. The nozzle 220 and the diversion pipe 230 are connected to the fixed seat 210. The diversion pipe 230 is provided with a diversion inlet 231, an intake channel 232, and a diversion outlet 233. The diversion inlet 231 and the diversion outlet 233 are in communication with the intake channel 232. Along the length direction of the diversion pipe 230, the nozzle 220 and the diversion inlet 231 are spaced apart.

[0102] The nozzle 220 is installed on the fixed seat 210. A flow channel is provided in the fixed seat 210. The flow channel is in communication with the nozzle 220. The gas from the gas supply end flows through the flow channel to the nozzle 220. The nozzle 220 sprays gas towards the diversion inlet 231. The nozzle 220 is directly opposite to the diversion inlet 231, and at the same time, a certain gap is ensured between the nozzle 220 and the diversion inlet 231. When the gas is sprayed towards the diversion inlet 231 by the nozzle 220, since the nozzle 220 and the diversion inlet 231 are spaced apart, the gas can drive the external gas to flow into the intake channel 232, so that the mixed gas formed by the gas and the external gas can flow into the intake channel 232 together, realizing the function of air supplement.

[0103] Figure 1 The arrow at the bottom opening of the diversion pipe 230 in [figure] indicates the gas flow direction.

[0104] As Figure 1 shown, in some embodiments, optionally, from the drainage inlet 231 to the drainage outlet 233, the flow cross-sectional area of the intake passage 232 first decreases and then increases. Therefore, the flow cross-sectional area of the drainage inlet 231 is relatively large, which enables a large amount of external gas to enter the intake passage 232. As the intake flow cross-sectional area decreases, the flow velocity of the gas in the intake passage 232 can be increased. As the flow cross-sectional area of the intake passage 232 begins to increase, the gas can flow into the burner assembly stably, avoiding a large impact on the burner assembly.

[0105] In an embodiment of the present invention, a cooking appliance is provided, including: a burner as in the above embodiment, and the same technical effects can be achieved, which will not be elaborated herein.

[0106] In the present invention, the term "plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0107] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0108] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A burner cap assembly, characterized in that, include: A fire cover, wherein the fire cover is provided with an air inlet and an inner cavity, and the air inlet is communicated with the inner cavity; A plurality of exhaust parts connected to the fire cover, the plurality of exhaust parts are distributed along the circumference of the fire cover, and along the circumference of the fire cover, a fire hole is formed between the side of the exhaust part and the fire cover, and the fire hole is communicated with the inner cavity; The guide part is connected with the fire cover, and is arranged between two adjacent exhaust parts, and is arranged opposite to the fire hole.

2. The burner cap assembly according to claim 1, characterized in that, The first end of the exhaust portion is connected to the fire cover; The included angle between the extension direction of the second end of the exhaust portion and the fire cover is α1, and the included angle between the side of the guide portion facing the fire hole and the fire cover is α2, satisfying α1≤α2.

3. The burner cap assembly according to claim 1 or 2, characterized in that, The length direction of the air guide portion is the same as the length direction of the exhaust portion.

4. The burner cap assembly according to claim 1 or 2, characterized in that, From the first end of the exhaust portion to the second end of the exhaust portion, the distance between the exhaust portion and the fire cover increases.

5. The burner cap assembly according to claim 1 or 2, characterized in that, The guide portion includes a protrusion, a first side of the protrusion faces the fire hole, and an angle is formed between the second side of the protrusion and the fire cover.

6. The burner cap assembly according to claim 5, characterized in that, The slope of the first side of the protrusion compared to the fire cover is equal to the slope of the exhaust portion.

7. The burner cap assembly according to claim 1 or 2, characterized in that, The exhaust section comprises: a first exhaust portion, wherein a first end of the first exhaust portion is connected to the fire cover; A second exhaust portion, wherein a first end of the second exhaust portion is connected to a second end of the first exhaust portion, and the second exhaust portion is bent toward the fire cover relative to the first exhaust portion.

8. The burner cap assembly according to claim 1 or 2, characterized in that, A portion of the fire cover is bent to form the guide portion, so that the fire hole is formed between the exhaust portion and the guide portion.

9. The burner cap assembly according to claim 7, wherein, The first end of the guide portion is connected to the fire cover, the distance between the second end of the guide portion and the fire cover is L1, the distance between the second end of the first exhaust portion and the fire cover is L2, and L2>L1.

10. The burner cap assembly according to claim 1 or 2, characterized in that, The fire cover has a top wall and a bottom wall, the top wall is provided with an inclined surface, and the exhaust part is provided on the inclined surface; The fire cover has an axis, and the distance between the inclined surface and the bottom wall decreases from the side of the inclined surface away from the axis to the side facing the axis.

11. The burner cap assembly according to claim 1 or 2, characterized in that, The fire cover assembly comprises a stainless steel fire cover assembly.

12. The burner cap assembly according to claim 1 or 2, characterized in that, The fire cover assembly comprises an annular fire cover assembly.

13. A burner, characterized in that, include: An air intake assembly, wherein the air intake assembly is provided with an air intake passage; The fire cover assembly according to any one of claims 1 to 12, wherein the fire cover assembly is connected to the air intake assembly, and the air intake port is connected to the air intake passage.

14. The burner according to claim 13, characterized in that, The air intake assembly comprises: Fixed seat; A nozzle connected to the fixing seat; A drainage tube is connected to the fixing seat, and is provided with a drainage inlet, the air inlet channel and a drainage outlet. The drainage inlet and the drainage outlet are connected to the air inlet channel. Along the length direction of the drainage tube, the nozzle and the drainage inlet are arranged at intervals.

15. A cooking appliance, characterized in that, include: A burner as claimed in claim 13 or 14.

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