CN117329513A - Base assembly and kitchen range - Google Patents

Abstract

The invention provides a base assembly and a stove. The base component comprises a base main body, at least three nozzle mounting seats, an outer ring air passage and a central air passage which are respectively arranged at the bottom of the base main body, and the base main body is of a plate-shaped structure; each nozzle mounting seat is respectively connected to the top of the base main body, extends from the top of the base main body to one side far away from the base main body vertically, and is provided with a nozzle at the top; the central air passage extends parallel to the base body and is communicated with one of the nozzle mounting seats, and the outer ring air passage extends parallel to the base body and is communicated with the rest of the nozzle mounting seats; wherein, outer loop air flue and central air flue have the overlap portion at the projection of base main part respectively, and outer loop air flue and base main part's interval is less than the interval of central air flue and base main part. The base assembly is beneficial to improving the primary air injection capacity of the outer ring nozzle, reducing the content of CO in the flue gas, increasing the load of the upper air inlet burner and improving the combustion efficiency.

Description

Base assembly and kitchen range

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a base assembly and a kitchen range.

Background

The kitchen ranges are divided into a full upper air intake type, a full lower air intake type and a full air intake type according to different air supplementing modes of the burner. The air supplement needed by the burner of the fully upper air inlet type kitchen range is from the upper part of the panel of the kitchen range during combustion, so that the bottom shell of the kitchen range can be fully sealed. Compared with the traditional lower air inlet type stove, the stove has the characteristics of concentrated fire, higher heat load, complete combustion, high heat efficiency, independent use of internal fire of the stove head and the like.

However, because the upper air inlet burner is limited by the structure, the injection pipe of the burner is relatively short, so that the heat load of the upper air inlet burner is relatively small, and the domestic Chinese cooking strong fire quick frying needs a larger load burner, so that the gas cooker of the upper air inlet burner is limited in domestic development, and if the length of the injection pipe is simply increased to increase the heat load of the upper air inlet burner, the thickness of the upper air inlet burner, the uneven air inlet premixing and other negative effects can be increased.

Disclosure of Invention

The present invention is directed to solving at least one of the problems discussed above and/or other problems in the prior art.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme:

according to one aspect of the present invention, there is provided a base assembly including a base body, at least three nozzle mount blocks, and an outer ring air passage and a center air passage respectively provided at a bottom of the base body, the base body having a plate-like structure; each nozzle mounting seat is respectively connected to the top of the base main body, extends from the top of the base main body to one side far away from the base main body vertically, and is provided with a nozzle; the central air passage extends parallel to the base body and is communicated with one of the nozzle mounting seats, and the outer ring air passage extends parallel to the base body and is communicated with the rest of the nozzle mounting seats; the outer ring air passage and the central air passage are respectively provided with an overlapped part in the projection of the base body, and the distance between the outer ring air passage and the base body is smaller than the distance between the central air passage and the base body.

According to an embodiment of the present invention, the shape of the base body is rectangular, and the at least three nozzle mounts include a first outer ring nozzle mount and a second outer ring nozzle mount connected to the top of the base body, respectively, and the first outer ring nozzle mount and the second outer ring nozzle mount are disposed at two end positions of a diagonal line of the base body, respectively.

According to an embodiment of the present invention, the axes of the nozzles respectively mounted on the first outer ring nozzle holder and the second outer ring nozzle holder are parallel and the air outlets of the two nozzles are oppositely arranged.

According to an embodiment of the present invention, the at least three nozzle mounting seats further include a central nozzle seat mounted on the top of the base body, the nozzles mounted on the central nozzle seat are parallel to the axial direction of the nozzles mounted on the second outer ring nozzle seat, and the air outlets of the two nozzles are disposed in the same direction.

According to an embodiment of the present invention, positioning columns are provided at the top of the first outer ring nozzle holder and the second outer ring nozzle holder.

According to an embodiment of the present invention, the outer ring air passage includes a first air passage and a second air passage extending along a gas flow direction, an end portion of the first air passage away from the second air passage extends toward the base body to form a third air passage communicating with the first outer ring nozzle holder, and an end portion of the second air passage away from the first air passage extends toward the base body to form a fourth air passage communicating with the second outer ring nozzle holder.

According to an embodiment of the present invention, the first air passage and the second air passage are respectively in straight line segments, and the first air passage and the second air passage are arranged at an obtuse angle.

According to an embodiment of the present invention, the central air passage has a straight line segment, an air inlet end of the central air passage and an air inlet end of the first air passage are disposed on the same side of the periphery of the base body, and the projection of the second air passage and the central air passage on the base body has an overlapping portion.

According to one embodiment of the invention, the middle of the top of the base body is provided with a supporting ring in an outward protruding mode.

According to one embodiment of the invention, a plurality of fixing legs are arranged at intervals along the periphery of the base body, and each fixing leg is provided with a plurality of supporting protruding points protruding away from the base body.

According to another aspect of the present invention, a cooktop is provided. The kitchen range comprises the base assembly and the distributor assembly. The bottom of distributor subassembly outwards protrudes and is provided with holding ring and blind hole, the holding ring with the holding ring phase-match of base main part, the blind hole with the reference column phase-match of nozzle mount pad.

One embodiment of the present invention has the following advantages or benefits:

the base component is used for air intake of the outer ring air flue through the at least two nozzle mounting seats, so that the capability of injecting primary air of the outer ring nozzle is improved, the content of CO in flue gas is reduced, the load of the upper air intake burner is increased, and the combustion efficiency is improved; the first air passage and the second air passage are arranged at an obtuse angle, so that resistance loss of fuel gas when the fuel gas passes through the turning flow passage can be reduced, the fuel gas pressure is improved, and the attenuation of heat load is reduced; each fixing leg is provided with a plurality of supporting protruding points towards keeping away from the protrusion of the base main body, and the contact between the fixing legs and the bottom shell is reduced by reducing the area of the installation surface of the fixing legs, so that the heat loss is reduced by reducing the conduction of high temperature into the bottom shell through the supporting legs.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 shows a perspective view of a hob according to an exemplary embodiment of the present invention.

Fig. 2 shows an exploded view of the hob shown in fig. 1.

Fig. 3 illustrates a perspective view of a base assembly according to an exemplary embodiment of the present invention.

Fig. 4 illustrates a bottom view of the base assembly shown in fig. 3.

Fig. 5 shows a cross-sectional view of the base assembly and distributor assembly shown in fig. 4, taken along line B-B.

FIG. 6 illustrates a cross-sectional view of the base assembly and distributor assembly shown in FIG. 4, taken along line C-C.

Fig. 7 illustrates an exploded view of an distributor assembly according to an exemplary embodiment of the present invention.

Fig. 8 shows a top view of the distributor body of the distributor assembly shown in fig. 7.

Fig. 9 shows a cross-sectional view of the distributor assembly shown in fig. 7, taken along line A-A in fig. 8.

Fig. 10 shows an exploded view of an energy harvesting cooker rack according to an exemplary embodiment of the invention.

Fig. 11 shows a cross-sectional view of the energy harvesting cooker rack shown in fig. 10, taken along the first cooker support.

Fig. 12 shows a partial cross-sectional view of a first layer of the energy harvesting cooker stand shown in fig. 10.

Wherein reference numerals are as follows:

1. a stove panel; 11. a combustion hole; 12. a liquid containing plate; 2. a stove outer housing; 21. an inner cavity of the kitchen range; 3. a base assembly; 31. a base body; 311. a support ring; 312. a fixed leg; 3121. a mounting hole; 3122. supporting the salient points; 32. a nozzle mount; 321. a nozzle; 322. a first outer ring nozzle holder; 323. a second outer ring nozzle holder; 324. a central nozzle holder; 325. positioning columns; 33. an outer annular airway; 331. a first airway; 332. a second airway; 333. a third airway; 334. a fourth airway; 34. a central airway; 4. a distributor assembly; 41. a blind hole; 42. a positioning ring; 43. a distributor body; 431. an outer ring mixing cavity; 4311. a mixing chamber body; 4312. a gas mixing section; 43121. a first gas mixing section; 43122. a second gas mixing section; 43123. an extension surface; 4313. an outer ring support post; 432. an outer ring injection pipe; 4321. a first ejector tube; 4322. a second ejector tube; 4323. an inclined plane; 433. a central mixing chamber; 4331. a central support column; 434. a central injection tube; 435; an air passage; 44. an outer ring air guide plate; 441. an outer ring air guide hole; 442. an outer ring lug; 45. a central air guide plate; 451. a central air vent; 452. a central lug; 5. a fire cover assembly; 51. an inner fire cover; 52. an outer fire cover; 6. an energy-gathering pot holder; 61. a first laminate; 611. a section; 6111. a first section; 6112. a second section; 6113. a third section; 6114. a fourth section; 612. a first positioning hole; 62. a second laminate; 621. a first flanging; 622. a second flanging; 63. a third laminate; 631. a third flanging; 632. a second positioning hole; 64. a first cavity; 65. a second cavity; 66. a first pan support; 661. a first positioning portion; 67. a second pan support; 671. and a second positioning part.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.

Fig. 1 and 2 show a hob according to an embodiment of the present invention. As shown in fig. 1 and 2, the cooktop may include a cooktop panel 1, a cooktop shell 2, a base assembly 3, a distributor assembly 4, a fire cover assembly 5, and an energy harvesting pot rack 6. The stove panel 1 is provided with a combustion hole 11, and an annular liquid containing plate 12 is provided at a position corresponding to the combustion hole 11. The cooktop shell 2 encloses a cooktop cavity 21 that forms a top opening and is capable of receiving the base assembly 3 and at least a portion of the distributor assembly 4. The stove top plate 1 is provided with at least one combustion hole 11 for at least a part of the distributor assembly 4 to extend out of the stove inner cavity 21, so that after the stove top plate 1 is covered at the top opening of the stove outer shell 2, at least a part of the distributor assembly 4 can extend out of the combustion hole 11. The energy-collecting pot frame 6 is arranged above the kitchen range panel 1 and corresponds to the periphery of the part, extending out of the combustion hole 11, of the distributor assembly 4, heat dissipated to the outside through absorption of high-temperature flue gas is radiated to improve the temperature of the energy-collecting pot frame, and the heat is transferred to the bottom of the pot through a radiation heat exchange mode between fixed surfaces, so that part of heat dissipated to the outside through the flue gas can be converted into effective heat absorption capacity of the pot body.

According to one exemplary embodiment of the base assembly 3, as shown in fig. 3 to 6, the base assembly 3 may include a base body 31, at least three nozzle mounts 32, and an outer ring air passage 33 and a center air passage 34 respectively provided at the bottom of the base body 31. The base body 31 has a plate-like structure, in this embodiment, the base body 31 is disposed at a position substantially flush with the kitchen range panel 1, so that when each nozzle mount 32 is respectively connected to the top of the base body 31, the top of the base body 31 can extend vertically to a side far away from the base body 31 (vertical to the horizontal plane where the base body 31 is located in fig. 3) so that the nozzle 321 mounted on the top of the nozzle mount 32 can be exposed out of the combustion hole 11, thereby achieving the purpose of upward air intake. The central air passage 34 extends in parallel with the plane (horizontal plane shown in fig. 6) in which the base body 31 is located, and the air inlet end of the central air passage 34 is directed toward one side (left side of the base body 31 shown in fig. 6) of the base body 31, and the air outlet end of the central air passage 34 communicates with one of the nozzle mount seats 32 for supplying air to the central flame. The outer ring air passage 33 extends in parallel with the plane (horizontal plane shown in fig. 5) in which the base body 31 is located, and the air intake end of the outer ring air passage 33 is directed to one side of the base body 31 (right side of the base body 31 shown in fig. 5), and the outer ring air passage 33 and the other nozzle mount 32 except the nozzle mount 32 communicating with the center air passage 34 communicate simultaneously for supplying air to the outer ring flame. The outer ring air passage 33 and the central air passage 34 are respectively provided with overlapping parts in the projection of the base body 31 when seen in the axial direction of the base body 31 from the lower direction of the base body 31, meaning that the outer ring air passage 33 and the central air passage 34 are crossed, in order to avoid communication between the outer ring air passage 33 and the central air passage 34, the outer ring air passage 33 can be arranged at a position closer to the base body 31, and the central air passage 34 is arranged at a position farther from the base body 31, so that the distance between the outer ring air passage 33 and the base body 31 is smaller than the distance between the central air passage 34 and the base body 31, and at least three nozzle mounting seats 32 can be arranged at any position of the base body 31, and simultaneously, the air inlet of the outer ring air passage 33 and the air inlet of the central air passage 34 are symmetrically arranged at the same side of the base body 31.

According to an exemplary embodiment of the nozzle mount 32, as shown in fig. 3, the shape of the base body 31 is rectangular, and the base body 31 is provided with rounded corners corresponding to corners of the rectangle for safety. The at least three nozzle mounts 32 include a first outer ring nozzle mount 322 and a second outer ring nozzle mount 323. The first outer ring nozzle holder 322 and the second outer ring nozzle holder 323 are respectively connected to the top of the base body 31, and the first outer ring nozzle holder 322 and the second outer ring nozzle holder 323 are respectively disposed at two end positions of a diagonal line of the base body 31, so that when the nozzles 321 are respectively disposed on the first outer ring nozzle holder 322 and the second outer ring nozzle holder 323, the axes of the two nozzles 321 can be coaxially or parallel disposed. For example, when the air outlets of the two nozzles 321 are disposed opposite to each other along the diagonal line, the axes of the two nozzles 321 are disposed coaxially. And when the axes of both the nozzles 321 are disposed along the length direction of the base body 31, the axes of both the nozzles 321 are disposed in parallel. The axes of the two nozzles 321 of the present embodiment are parallel and the orientations of the air outlets of the two nozzles 321 are preferably opposite. Through the simultaneous setting of first outer loop nozzle holder 322 and second outer loop nozzle holder 323, can follow and set up two nozzles 321 on first outer loop nozzle holder 322 and the second outer loop nozzle holder 323 and enter into distributor subassembly 4 simultaneously, be favorable to improving the ability of ejecting primary air of these two nozzles 321, reduce the CO content in the flue gas, promote combustion efficiency.

Further, the at least three nozzle mounts 32 also include a center nozzle mount 324, the center nozzle mount 324 also mounted to the top of the base body 31. The axis of the nozzle 321 mounted on the center nozzle holder 324 is parallel to the axis of the nozzle 321 mounted on the second outer ring nozzle holder 323, and the air outlet of the nozzle 321 on the center nozzle holder 324 is disposed in the same direction as the air outlet of the nozzle 321 on the second outer ring nozzle holder 323, so that the air outlet of the nozzle 321 on the center nozzle holder 324 is disposed in the opposite direction to the air outlet of the nozzle 321 on the first outer ring nozzle holder 322.

In order to perform the pre-positioning or limiting of the base body 31 and the distributor assembly 4 in the circumferential direction, the distributor body 43 and the base body 31 are prevented from being shifted in the circumferential direction, and the bottoms of the first outer ring nozzle holder 322 and the second outer ring nozzle holder 323 are provided with positioning posts 325. Correspondingly, the distributor assembly 4 is provided with blind holes 41 matching the positioning posts 325. It will be appreciated that the locating post 325 may also be provided on the central nozzle holder 324 and a matching blind hole 41 provided in the locating post 325 at a location on the distributor assembly 4 corresponding to the central nozzle holder 324.

According to an exemplary embodiment of the outer ring air passage 33, as shown in fig. 5, the outer ring air passage 33 includes a first air passage 331 and a second air passage 332 extending along a gas flow direction, the second air passage 332 communicates with an air outlet of the first air passage 331, an end portion of the first air passage 331 (an end portion where an air inlet of the first air passage 331 is located shown in fig. 5) remote from the second air passage 332 extends upward (a side where the base body 31 is located shown in fig. 5) to form a third air passage 333, and an air outlet end of the third air passage 333 communicates with the first outer ring nozzle seat 322. The end portion of the second air passage 332 away from the first air passage 331 (the end portion where the air outlet of the second air passage 332 is located as shown in fig. 5) extends upward (the side where the base body 31 is located as shown in fig. 5) to form a fourth air passage 334, and the air outlet end of the fourth air passage 334 communicates with the second outer ring nozzle seat 323. In this way, the first outer ring nozzle holder 322 and the second outer ring nozzle holder 323 which are in a diagonal line are communicated by the outer ring air passage 33, and a part of the gas which enters the outer ring air passage 33 from the gas inlet of the outer ring air passage 33 enters the first outer ring nozzle holder 322 via the first air passage 331 and the third air passage 333, and the other part enters the second outer ring nozzle holder 323 via the first air passage 331, the second air passage 332, and the fourth air passage 334.

Further, the first air passage 331 and the second air passage 332 are respectively in straight line segments, and the first air passage 331 and the second air passage 332 are arranged at an obtuse angle, so that resistance loss of fuel gas in a turning flow passage passing through the connection part of the first air passage 331 and the second air passage 332 can be reduced, the pressure of the fuel gas is improved, and the attenuation of heat load is reduced.

In the above embodiment, the central air passage 34 is a straight line segment, and the air inlet end of the central air passage 34 and the air inlet end of the first air passage 331 are disposed on the same side of the periphery of the base body 31 (the left side of the base body 31 shown in fig. 4), so that the air inlet end of the central air passage 34 and the air inlet end of the outer air passage 33 are conveniently connected to the plug valve at the same time. Thus, after the first air passage 331 extends along the length direction of the base body 31, the projection of the second air passage 332 and the central air passage 34 on the base body 31 has an overlapping portion, so that the second air passage 332 extends from the corresponding position of the first nozzle mount 32 located at the left side of the central air passage 34 to the corresponding position of the second nozzle mount 32 located at the left side of the central nozzle mount 324.

With continued reference to fig. 5, in combination with the matching of the positioning post 325 and the blind hole 41 in the above embodiment, a supporting ring 311 is provided in the middle of the top of the base body 31 in a protruding manner (above the top of the base body 31 shown in fig. 6), and a positioning ring 42 matching with the supporting ring 311 is provided on the distributor assembly 4, and the distributor assembly 4 is disposed above the base body 31 by adapting the positioning ring 42 to the outer circumference of the supporting ring 311 (or the outer circumference of the supporting ring 311) so that the air outlets of the three nozzles 321 correspond to the first outer ring injection pipe 432, the second outer ring injection pipe 432 and the inner ring injection pipe, respectively.

In order to stably fix the base body 31 to the hob case 2, a plurality of fixing legs 312 are provided at intervals along the circumference of the base body 31, and the fixing legs 312 are configured such that bolts can fix the base body 31 to the hob case 2 or to a bracket connected to the hob case 2 after passing through mounting holes 3121 on the fixing legs 312. Each of the fixing legs 312 is provided with a plurality of supporting protrusions 3122 protruding toward a side far from the base body 31, and the plurality of supporting protrusions 3122 has a height of 1mm to 2mm, thereby reducing the contact area between the fixing legs 312 and the cooker housing 2, so that the heat loss can be advantageously reduced by reducing the heat conduction to the cooker housing 2 through the fixing legs 312.

According to one exemplary embodiment of the distributor assembly 4, as shown in fig. 7-9, the distributor assembly 4 includes a distributor body 43, an outer ring gas guide plate 44, and a center gas guide plate 45. The distributor body 43 includes an outer annular mixing chamber 431, at least two outer annular ejector tubes 432 corresponding to the outer annular mixing chamber 431, a central mixing chamber 433, and a central ejector tube 434 corresponding to the central mixing chamber 433. The outer ring air mixing cavity 431 comprises an annular air mixing cavity main body 4311 and at least two air mixing sections 4312 which are respectively arranged at intervals along the air mixing cavity main body 4311, the top of each air mixing section 4312 is respectively communicated with the air mixing cavity main body 4311, and the side wall of each air mixing section 4312 is communicated with the air outlet end of one outer ring injection pipe 432. Each outer ring injection pipe 432 extends from the corresponding gas mixing section 4312 to the inner side of the gas mixing cavity main body 4311, and the gas inlet of one outer ring injection pipe 432 corresponds to the gas outlet of the nozzle 321 mounted on the first outer ring nozzle seat 322, and the gas inlet of the other outer ring injection pipe 432 corresponds to the gas outlet of the nozzle 321 mounted on the second outer ring nozzle seat 323. A gap for air inflow is further arranged between the nozzle 321 and the outer ring injection pipe 432, so that when fuel gas is injected into the outer ring injection pipe 432 by the nozzle 321, the fuel gas can be sucked into the outer ring injection pipe 432 through negative pressure effect to be mixed together. The two outer ring injection pipes 432 are used for simultaneously introducing fuel gas and air, so that the primary air injection capacity of the outer ring mixing cavity 431 can be improved, and the problem that the load of the outer ring fire is increased and the content of CO in flue gas exceeds the standard is solved. The central air mixing chamber 433 is coaxially disposed in the center of the outer ring air mixing chamber 431, and it is understood that when the outer ring injection pipe 432 extends toward the inner side of the air mixing chamber body 4311, the projection of the outer ring injection pipe 432 and the central air mixing chamber 433 in the horizontal plane as shown in fig. 9 may have an overlapping area, but the outer ring injection pipe 432 is not communicated with the central air mixing chamber 433. The air outlet end of the central injection pipe 434 is connected to the central air mixing chamber 433, the air inlet end of the central injection pipe 434 corresponds to the air outlet of the nozzle 321 mounted on the central nozzle seat 324, and the nozzle 321 can also take air into the central injection pipe 434 to mix with fuel gas by negative pressure acting on the gap between the central injection pipe 434 and the nozzle 321.

In the above embodiment, as shown in fig. 9, at least two gas mixing sections 4312 include a first gas mixing section 43121 and a second gas mixing section 43122. Correspondingly, the at least two outer ring injection pipes 432 include a first injection pipe 4321 and a second injection pipe 4322. The first ejector 4321 is communicated with the side wall of the first gas mixing section 43121, and the second ejector 4322 is communicated with the side wall of the second gas mixing section 43122, so that the gas and the air are mixed and then respectively enter the first gas mixing section 43121 and the second gas mixing section 43122, and gradually flow upwards along the circumferential direction of the distributor main body 43 and enter the gas mixing cavity main body 4311. Further, the first and second injection pipes 4321 and 4322 are parallel to the central injection pipe 434, and the first and second injection pipes 4321 and 4322 are symmetrically disposed at both sides of the central air mixing chamber 433. The three ejector tubes are arranged in parallel at the bottom of the distributor main body 43, so that the space occupied by the ejector tubes is reduced as much as possible, and the primary air ejecting capacity is improved to the greatest extent in a limited space range.

According to an exemplary embodiment of the gas mixing sections 4312, as shown in fig. 8 and 9, the bottom of each gas mixing section 4312 has an extension plane 43123, the elevation angle of the extension plane 43123 being set between 25 ° and 30 °. The extension surface 43123 extends obliquely upwards from the bottom of the outer ring injection pipe 432 to the bottom of the outer ring mixing cavity 431, and the bottom of the outer ring mixing cavity 431 is planar. The mixed gas entering the gas mixing section 4312 through the outer ring injection pipe 432 is further mixed in the gas mixing section 4312 after the flow direction is changed along the extension surface 43123, and flows to the plane part of the outer ring gas mixing cavity 431 along the extension surface 43123, so that the impact of the mixed gas on the distributor main body 43 can be reduced to generate turbulence. Further, the cross section of the gas mixing section 4312 along the gas flow direction is gradually reduced, so that the flow rate of the mixed gas can be increased, and the backfire phenomenon caused by the pressure change can be prevented.

According to an exemplary embodiment of the outer ring injection pipe 432, the air inlet end of the first injection pipe 4321 and the air inlet end of the second injection pipe 4322 are disposed in central symmetry with respect to the central air mixing chamber 433, so that when the distributor body 43 is connected to the base body 31, the air inlet end of the first injection pipe 4321 may correspond to the nozzle 321 on the first outer ring nozzle seat 322, while the air inlet end of the second injection pipe 4322 may correspond to the nozzle 321 on the second outer ring nozzle seat 323.

In the above embodiment, with continued reference to fig. 8 and 9, air passages 435 are provided between the first ejector tube 4321 and the outer-ring air-mixing chamber 431, and between the second ejector tube 4322 and the outer-ring air-mixing chamber 431, respectively. The function of this air channel 435 is that air may flow along the air channel 435 into the central mixing chamber 433 at the top periphery to provide secondary air make-up for the combustion of the central flame. Further, the first injection pipe 4321 and the second injection pipe 4322 are respectively provided with inclined surfaces 4323 near the outer side of the side wall of the outer ring mixing chamber 431, and the elevation angle of the inclined surfaces 4323 is 45 ° to 60 °. The secondary air can flow upwards along the inclined upward angle, the resistance is reduced, the supply quantity of the secondary air can be effectively improved, and the combustion is more sufficient.

According to an exemplary embodiment of the central injection pipe 434, as shown in fig. 8, the air outlet end of the central injection pipe 434 extends to the central position of the central air mixing chamber 433 after passing through the central air mixing chamber 433, so that the injection capacity of the central injection pipe 434 is improved by extending the length of the central injection pipe 434, and the injection coefficient of primary air is improved, so that the mixed gas of the central air mixing chamber 433 burns more fully.

For the cooperation of the distributor body 43 with the base body 31, the distributor body 43 is provided with a positioning ring 42 protruding toward the bottom (lower side of the distributor body 43) at the bottom of the central mixing chamber 433 for cooperation with the supporting ring 311 protruding upward from the top of the base body 31. And, a blind hole 41 for positioning is provided at the bottom of the outer ring mixing chamber 431, and the blind hole 41 is matched with positioning posts 325 provided on the first outer ring nozzle holder 322 and the second outer ring nozzle holder 323, respectively.

According to one exemplary embodiment of the outer ring air guide 44, as shown in FIG. 7, the outer ring air guide 44 is disposed within the outer ring mixing chamber 431 and has at least two outer ring lugs 442 with outer ring air holes 441. The outer ring lug 442 is disposed at the junction of the gas mixing section 4312 and the outer ring injection pipe 432. For example, an outer ring lug 442 is disposed at the connection between the first ejector tube 4321 and the first air mixing section 43121, an outer ring lug 442 is disposed at the connection between the second ejector tube 4322 and the second air mixing section 43122, and a small part of mixed gas flows out from the outer ring air holes 441 through a plurality of outer ring air holes 441 on the outer ring lug 442, which is beneficial to improving the uniformity of outer ring flame.

Specifically, the outer ring air guide 44 extends outwardly along the inner side wall of the outer ring air mixing chamber 431 to cover at least a portion of the outer ring air mixing chamber 431. Preferably, the width of the outer ring air guide 44 is approximately 5mm, and the width of the outer ring lugs 442 represents twice the width of the outer ring air guide 44. A plurality of outer ring support columns 4313 for supporting the outer ring air guide plate 44 are arranged at equal intervals at the bottom of the outer ring air mixing chamber 431.

According to one exemplary embodiment of the central air guide plate 45, as shown in FIG. 7, the central air guide plate 45 is disposed within the central mixing chamber 433 and has a central ledge 452 with central air holes 451. A central ledge 452 is disposed at the outlet end of the central eductor 434. Through the plurality of central air holes 451 on the central lug 452, a small portion of the mixed gas flows out of the central air holes 451, which is beneficial to improving the uniformity of the central flame.

Specifically, the central air guide plate 45 extends inwardly along the outer side wall of the central air mixing chamber 433 to cover at least a portion of the central air mixing chamber 433. Preferably, the width of the central air guide plate 45 is approximately 3mm to 5mm, and the width of the central ledge 452 represents twice the width of the central air guide plate 45. A plurality of central support columns 4331 for supporting the central air guide plate 45 are equally spaced at the bottom of the central air mixing chamber 433.

According to one exemplary embodiment of the fire cover assembly 5, as shown in fig. 2, the fire cover assembly 5 includes an inner fire cover 51 and an outer fire cover 52, wherein the circumferential outer side of the inner fire cover 51 is provided with an inner fire hole and covers the top of the central mixing chamber 433, and the circumferential outer side of the outer fire cover 52 is provided with an outer fire hole and covers the top of the outer mixing chamber 431. This embodiment is a conventional arrangement, and will not be described in detail here.

According to an exemplary embodiment of the energy accumulating pan section 6, as shown in fig. 10 and 11, the energy accumulating pan section 6 comprises a first layer plate 61, a second layer plate 62 and a third layer plate 63, each having a ring shape. The first layer plate 61 extends substantially in the radial direction of the energy accumulating pot holder 6 and comprises a plurality of sections 611, each having a ring shape, the plurality of sections 611 also being arranged from the inside to the outside in the radial direction of the energy accumulating pot holder 6. Each section 611 has a cross section of a different shape than the other sections 611. For example, the sections 611 may each have a different linear, arcuate, or circular arc shape in cross section and may be positioned at different locations to change the speed, turbulence, and direction of the flue gas flow at that location. The inner end of the second laminate 62 is connected to the inner end of the first laminate 61, and the outer end of the second laminate 62 is connected to the outer end of the first laminate 61, so that a first cavity 64 as an upper air insulating interlayer is enclosed between the first laminate 61 and the second laminate 62. The height of the first cavity 64 is about 2.5mm to 3mm, so that the high-temperature heat can be radiated upwards to the upper surface of the energy-collecting pot frame 6 (i.e. the upper surface of the first layer plate 61), and the temperature of the energy-collecting pot frame 6 close to one side surface of the pot is raised, thereby enhancing the intensity of the high-temperature heat of the energy-collecting pot frame 6, which can be radiated to the bottom of the pot, and further being beneficial to raising the heat efficiency. The inner end of the third layer 63 is connected to the inner end of the second layer 62, and the outer end of the third layer 63 is connected to the outer end of the first layer 61, so that a second cavity 65 serving as an air heat-insulating interlayer of the lower layer is enclosed between the second layer 62 and the third layer 63. The second cavity 65 has a height of about 30mm, and can isolate the cooling effect of the external cold air on the outer periphery of the energy-collecting pot frame 6 on the inner peripheral surface of the energy-collecting pot frame 6, thereby being beneficial to raising the temperature of the inner peripheral surface of the energy-collecting pot frame 6.

According to one exemplary embodiment of the plurality of segments 611, as shown in fig. 12, the plurality of segments 611 includes a first segment 6111, a second segment 6112, a third segment 6113, and a fourth segment 6114, which are sequentially arranged from the inside to the outside. The first segment 6111, the second segment 6112, the third segment 6113, and the fourth segment 6114 respectively present different cross sections according to the positions thereof, so as to exert corresponding functions at the corresponding positions. Corresponding to the positions of the first and fourth sections 6111 and 6114, the inner end of the second layer 62 is connected to the inner side of the first section 6111, and the outer ends of the second layer 62 and the third layer 63 are connected to the outer ends of the fourth section 6114, respectively.

According to one exemplary embodiment of the first segment 6111, with continued reference to fig. 12, the cross section of the first segment 6111 is circular arc shaped, and the circular arc shaped first segment 6111 is provided protruding towards the axis of the energy accumulating pot holder 6, the height of the first segment 6111 gradually increases as it extends radially outwards. The arc radius of the first section 6111 is about 70mm to 90mm, so that the vortex phenomenon in the concave energy collecting disc in the prior art is avoided, and therefore, part of high-temperature flue gas is prevented from entering the vortex to reduce heat exchange with the bottom of the cooker, the flow of secondary air is increased, the flow speed of the high-temperature flue gas is increased, and the heat exchange between the high-temperature flue gas and the bottom of the cooker is increased.

According to one exemplary embodiment of the second section 6112, with continued reference to fig. 12, the cross section of the second section 6112 is in an inclined straight line shape and gradually increases in height as it extends outwardly from the outer end of the first section 6111, thereby reflecting more heat to the bottom of the pot.

Because a layer of thermal boundary layer is formed when the high-temperature flue gas exchanges heat with the bottom of the cooker, the existence of the thermal boundary layer increases the heat exchange resistance between the high-temperature flue gas and the bottom of the cooker, and reduces the heat exchange quantity between the flue gas and the bottom of the cooker. In order to break this layer of thermal boundary layer, as shown in fig. 12, the cross section of the third section 6113 is provided in a wavy shape at the exhaust port of the energy accumulating pan frame 6 (where the third section 6113 is located), and the third section 6113 extends in a plane perpendicular to the axial direction of the energy accumulating pan frame 6 (a horizontal plane as shown in fig. 12). The number of corrugations in the wavy cross section is 5 to 10, each having a height of 5 to 10mm, as seen in the cross section of the third section 6113. When the combustion flue gas passes through the third section 6113, severe disturbance occurs, so that the turbulence degree of the flue gas flow is increased, a thermal boundary layer formed between the high-temperature flue gas and the pan bottom is destroyed, and the thermal efficiency is improved by about 5%.

After heat exchange is performed on the high-temperature flue gas with a certain temperature from the third section 6113, a part of the high-temperature flue gas flows out along the bottom of the cooker in the horizontal direction, a part of the high-temperature flue gas flows upwards along the edge of the side surface of the cooker and further exchanges heat with the cooker, and a large part of the high-temperature flue gas enters the air outwards in the horizontal direction, so that high-temperature flue gas is lost. In order to reduce the loss of high temperature flue gas flowing outward in the horizontal direction, as shown in fig. 12, a fourth section 6114 is provided at the outer periphery of the third section 6113. The cross section of the fourth section 6114 is in an inverted U shape, and the side wall of the side close to the third section 6113 (the inner side of the fourth section 6114 shown in fig. 12) is obliquely extended, so that the flowing direction of the high-temperature flue gas can be changed, more high-temperature flue gas can flow upwards along the edge of the side surface of the pot, and the heat exchange efficiency is improved. The fourth section 6114 has a height of about 5mm and a width of about 5mm.

As to a more specific connection manner between the first laminate 61 and the second laminate 62, as shown in fig. 11, the outer periphery of the second laminate 62 is provided with a first flange 621, and the first flange 621 is attached to and fixed to the outer side wall of the fourth section 6114, preferably by spot welding.

Further, regarding a more specific connection manner between the second and third laminate plates 62 and 63 and the first laminate plate 61, respectively, as shown in fig. 11, the inner peripheral edges of the second and third laminate plates 62 and 63 have second and third flanges 622 and 631, respectively, which are adhered to each other, and the second and third flanges 622 and 631 are fixed to the first section 6111, respectively, preferably by spot welding.

In the above embodiment, as shown in fig. 10 and 11, the energy accumulating pan support 6 further includes a plurality of first pan supports 66 and a plurality of second pan supports 67. The plurality of first pot holders 66 are arranged on the first layer plate 61 in an equidistant ring manner, and extend towards one side of the first layer plate 61 away from the second layer plate 62 (above the first layer plate 61 shown in fig. 11) respectively, so as to support the pot on the energy accumulating pot frame 6, and a gap for high-temperature flue gas flow is formed between the bottom of the pot and the energy accumulating pot frame 6. A plurality of second pot holders 67 are equally spaced around the third deck 63 and extend towards one side of the third deck 63 away from the second deck 62 (below the third deck 63 as shown in fig. 11) respectively, thereby supporting the energy harvesting pot holder 6 together with the cookware on the cooktop panel 1. In particular, when the liquid containing pan 12 is provided at the combustion hole 11 of the stove panel 1, the energy collecting pot holder 6 together with the cookware can be supported on the liquid containing pan 12 by the second pot support 67, so that the energy collecting pot holder 6 and the cookware are indirectly supported on the stove panel 1 together. The first pot support 66 and the second pot support 67 which are arranged in a split mode prevent heat loss caused by heat conduction of the first pot support 66 of the energy-collecting pot support 6 to the second pot support 67. Meanwhile, the number of the first pot support 66 and the second pot support 67 is four, the thicknesses of the first pot support 66 and the second pot support 67 are about 3.5mm, and the reduction of the thicknesses of materials used for the first pot support 66 and the second pot support 67 is also beneficial to reducing the cost and heat loss.

Specifically, a first positioning hole 612 is provided at a position of the first layer 61 corresponding to the first pot support 66, a first positioning hole 612 is provided at the bottom of the first pot support 66, a first positioning portion 661 adapted to the first positioning hole 612 is provided at the bottom of the first pot support 66, and the first positioning portion 661 is welded and fixed after being inserted into the first positioning hole 612. The third layer 63 is provided with a second positioning hole 632 corresponding to the second pan support 67, a second positioning part 671 matched with the second positioning hole 632 is arranged in the middle of the second pan support 67, and the second positioning part 671 is welded and fixed after being inserted into the second positioning hole 632.

In embodiments of the present invention, the term "plurality" refers to two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of the present invention.

In the description of the present specification, the terms "one embodiment," "a preferred embodiment," and the like, mean 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 embodiments of the present invention. In this specification, schematic representations of the above terms 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 is only a preferred embodiment of the present invention and is not intended to limit the embodiment of the present invention, and various modifications and variations can be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims (11)

1. A base assembly, comprising:

a base main body (31), wherein the base main body (31) has a plate-like structure;

at least three nozzle mounting seats (32), wherein each nozzle mounting seat (32) is respectively connected to the top of the base main body (31), extends from the top of the base main body (31) to one side far away from the base main body (31) vertically, and a nozzle (321) is arranged at the top of each nozzle mounting seat (32); and

an outer ring air passage (33) and a central air passage (34) which are respectively arranged at the bottom of the base main body (31), wherein the central air passage (34) extends parallel to the base main body (31) and is communicated with one of the nozzle mounting seats (32), and the outer ring air passage (33) extends parallel to the base main body (31) and is communicated with the rest of the nozzle mounting seats (32);

the projection of the outer ring air passage (33) and the central air passage (34) on the base main body (31) is provided with an overlapped part, and the distance between the outer ring air passage (33) and the base main body (31) is smaller than the distance between the central air passage (34) and the base main body (31).

2. The base assembly according to claim 1, wherein the base body (31) is rectangular in shape, the at least three nozzle mount blocks (32) include a first outer ring nozzle block (322) and a second outer ring nozzle block (323) respectively connected to a top of the base body (31), the first outer ring nozzle block (322) and the second outer ring nozzle block (323) being respectively disposed at two end positions of a diagonal line of the base body (31).

3. The base assembly according to claim 2, characterized in that the axes of the nozzles (321) mounted to the first outer ring nozzle holder (322) and the second outer ring nozzle holder (323), respectively, are parallel and the orientations of the air outlets of the two nozzles (321) are oppositely arranged.

4. A base assembly according to claim 3, characterized in that the at least three nozzle mounts (32) further comprise a central nozzle mount (324) mounted on top of the base body (31), the nozzles (321) mounted to the central nozzle mount (324) being parallel to the axial direction of the nozzles (321) mounted to the second outer ring nozzle mount (323) and the air outlets of the two nozzles (321) being oriented in the same direction.

5. The base assembly of claim 2, wherein the top of the first outer ring nozzle holder (322) and the second outer ring nozzle holder (323) are provided with positioning posts (325).

6. The base assembly according to any one of claims 2 to 5, wherein the outer ring air passage (33) includes a first air passage (331) and a second air passage (332) extending in a gas flow direction, an end of the first air passage (331) remote from the second air passage (332) extends toward the base body (31) to form a third air passage (333) communicating with the first outer ring nozzle seat (322), and an end of the second air passage (332) remote from the first air passage (331) extends toward the base body (31) to form a fourth air passage (334) communicating with the second outer ring nozzle seat (323).

7. The base assembly of claim 6, wherein the first air passage (331) and the second air passage (332) are each in a straight line segment, the first air passage (331) being arranged at an obtuse angle to the second air passage (332).

8. The base assembly according to claim 6, characterized in that the central air passage (34) is in a straight line section and the air inlet end of the central air passage (34) and the air inlet end of the first air passage (331) are arranged on the same side of the periphery of the base main body (31), and the projection of the second air passage (332) and the central air passage (34) on the base main body (31) has an overlapping part.

9. The base assembly according to any one of claims 1 to 5, characterized in that the base body (31) is provided with a support ring (311) protruding outwards in the middle of the top.

10. The base assembly according to any one of claims 1 to 5, characterized in that a plurality of fixing legs (312) are provided at intervals along the periphery of the base body (31), each of the fixing legs (312) being provided with a plurality of support bumps (3122) protruding away from the base body (31).

11. A cooktop, comprising:

the base assembly of any one of claims 1 to 10; and

the distributor assembly (4), the outside arch in bottom of distributor assembly (4) is provided with holding ring (42) and blind hole (41), holding ring (42) with support ring (311) phase-match of base main part (31), blind hole (41) with reference column (325) phase-match of nozzle mount pad (32).