CN208936154U - A kind of energy-gathering burner - Google Patents
A kind of energy-gathering burner Download PDFInfo
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- CN208936154U CN208936154U CN201821560144.2U CN201821560144U CN208936154U CN 208936154 U CN208936154 U CN 208936154U CN 201821560144 U CN201821560144 U CN 201821560144U CN 208936154 U CN208936154 U CN 208936154U
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- output hole
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- burner
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Abstract
The utility model discloses a kind of energy-gathering burners, including burner, an annular mixing chamber is only provided on burner, buckle closure has ring-shaped fire cover on mixing chamber, ring-shaped fire cover has radially spaced lateral wall and inboard wall, and the roof being connected with two sidewalls top, and lateral wall is evenly distributed with fire output hole with circumferential on inboard wall, fire output hole on lateral wall extends to radial outside oblique upper, and the fire output hole on inboard wall extends to radial inboard oblique upper.The utility model energy-gathering burner is on the basis of exporting complete two circles flame using a ring-shaped fire cover, pass through the angle of two circle flame fire output hole of control, one " no-man's-land circle " is formed between two circle flames, when burning, being somebody's turn to do " no-man's-land circle " can play the role of assembling thermal energy, form high temperature heat air mass circle, the bottom of a pan heating time is extended, improve the heat utilization rate of high-temperature flue gas, improve combustion thermal efficiency, both the heating intensity and coverage area that ensure that burner, in turn simplify structure, reduce the processing cost of burner.
Description
Technical field
The utility model relates to gas-cooker field, more particularly to a kind of combustion with cumulative effect of only one ring-shaped fire cover
Burner.
Background technique
As shown in Figure 1, the burner of mainstream is the bicyclic flame with central flame cap a and external ring fire cover b currently on the market
Burner, it is circumferential on the lateral wall b2 of external ring fire cover b to be evenly distributed with fire output hole g, if the transition position interval of inboard wall b1 and roof c is arranged
Do group fire output hole, circumferential uniformly fire output hole d on the lateral wall a1 of central flame cap a.When work, on external ring fire cover b lateral wall b2
The annular flame that the annular flame and central flame cap a that fire output hole g is formed are formed collectively forms high-temperature region and carries out to the cookware of top
Heating, the high-temperature area that the flame that wall a small amount of fire output hole e in the inboard external ring fire cover b is generated then surrounds two annular flames carry out
Heat supplement.
Although this bicyclic flame burner facilitates to increase the coverage area of burner flame, and can use central flame
Lid generates the lesser flame of coverage area, but due to needing to be arranged two fire covers, correspondingly, two to be also arranged on the burner of lower section
A combustion gas mixing chamber, also, to guarantee that the flame combustion of central flame cap a is abundant, it is radial between external ring fire cover b and central flame cap a
The setting of upper needs interval, to be then arranged on the side wall of the mixing chamber in outside with the through-hole h for being spaced and being connected to, so as to
Every secondary supplement air in k, thus there is structure is complicated, processing cost is high, and the inboard wall b1 on external ring fire cover b is not filled
Divide the defect utilized.
Utility model content
In view of the problems of the existing technology, the purpose of this utility model is to provide only one a kind of ring-shaped fire covers
Burner with cumulative effect.
To achieve the above object, technical solutions of the utility model are as follows:
A kind of energy-gathering burner, including burner are provided with an annular mixing chamber on burner, and buckle closure has ring-shaped fire on mixing chamber
Lid, ring-shaped fire cover have radially spaced lateral wall and inboard wall, and the roof being connected with two sidewalls top, outside
Circumferential on wall and inboard wall to be evenly distributed with fire output hole, the fire output hole on lateral wall extends to radial outside oblique upper, on inboard wall
Fire output hole extends to radial inboard oblique upper.
Further, the lateral wall is obliquely installed, and is extended to the radial inboard oblique upper of the ring-shaped fire cover, in described
Side wall extends vertically setting.
Further, the axis of the fire output hole on the inboard wall and horizontal angle are 15 °~30 °, on the lateral wall
Fire output hole and horizontal angle be 30 °~45 °.
Further, the fire output hole on the inboard wall is located in same level, the aperture of the fire output hole for φ 1.5mm~
φ 2.2mm, the circumferential pitch-row of fire output hole is 3.5mm~5.5mm, also, cookware when using on cookware bracket is corresponded in circumferential direction
The aperture of stabilizer blade or the fire output hole of foot panel region is less than the aperture in other regions.
Further, at least about two layers fire output hole being intervally arranged is provided on the lateral wall, same layer fire output hole is located at
In same level, and be staggered in adjacent two layers fire output hole circumferential direction, the circumferential spacing of top layer fire output hole be 5mm~
6.5mm。
Further, going out for the cookware stabilizer blade or foot panel region when using on cookware bracket was corresponded to the lateral wall last week upwards
The aperture of fire hole is less than the aperture in other regions, the aperture of the fire output hole of corresponding cookware stabilizer blade or foot panel region be φ 1.5mm~
φ 1.7mm, the aperture of the fire output hole in other regions are φ 2.3mm~φ 2.6mm.
Further, the cookware stabilizer blade or foot piece in the top layer fire output hole on the lateral wall when corresponding use on cookware bracket
The aperture of the fire output hole in region is φ 1.5mm~φ 1.7mm, and the aperture of the fire output hole in other regions is φ 2.3mm~φ
The aperture of 2.6mm, each layer fire output hole in top layer fire output hole lower section are φ 1.3mm~φ 1.6mm.
Further, cookware branch when using is corresponded in each layer fire output hole circumferential direction below the top layer fire output hole on the lateral wall
Cookware stabilizer blade or foot panel region on frame are not provided with fire output hole.
Further, the lower end of the lateral wall of the ring-shaped fire cover and the inboard wall is pressed respectively against the annular mixing
The upper end of the radial outside wall of chamber and radial inboard wall, and the lower end of the lateral wall of ring-shaped fire cover is additionally provided with and extends downwardly into
The convex edge of annular mixing chamber；It is additionally provided with several on the burner and extends diametrically through the annular mixing chamber for annular
The through-hole of the radial inboard space secondary supplement air of mixing chamber, several described through-holes are circumferentially uniformly distributed.
Further, the venturi ejector pipe for combustion gas and primary air input, venturi injection are provided on the burner
The premix chamber of combustion gas and air is provided between pipe and the annular mixing chamber.
The utility model energy-gathering burner passes through on the basis of exporting complete two circles flame using a ring-shaped fire cover
The angles of two circle flame fire output holes of control, form one " no-man's-land circle " between two circle flames, when burning, be somebody's turn to do " vacuum
Zone circle " can play the role of assembling thermal energy, form high temperature heat air mass circle, extended to the bottom of a pan heating time, improved
The heat utilization rate of high-temperature flue gas, improves combustion thermal efficiency, not only ensure that the heating intensity and coverage area of burner, but also letter
Change structure, reduces the processing cost of burner.
Fire output hole on lateral wall extends to radial outside oblique upper, is conducive to the radial heated perimeter for expanding burner,
Fire output hole on inboard wall extends annular to radial inboard oblique upper, is conducive to inner ring flame and converges to the bottom of a pan；Fire cover inboard wall
On fire output hole axis and horizontal angle be fire output hole on 15 °~30 ° lateral walls with horizontal angle be 30 °~
45 °, such angle setting keeps the spatial dimension of " no-man's-land circle " more reasonable, " true if above-mentioned two angle is too small
The space of vacant lot zone circle " is excessively flat, is unfavorable for the aggregation of heat；If above-mentioned two angle is excessive, " no-man's-land circle "
Space is excessively narrow, and the aggtegation of heat is little.
The aperture of ring-shaped fire cover fire output hole and pitch-row are directly related to the heating effect of flame, if pitch-row is excessive, flame
It crowded around dilute, and was unfavorable for the aggregation of cookware bottom heat, if pitch-row is too small, crowding around for flame is overstocked, the flame of adjacent fire output hole
It can interact, be unfavorable for making full use of for heat.
Multilayer fire output hole arranged up and down is set on the lateral wall of ring-shaped fire cover, is gone out especially based on top layer fire output hole
Fire hole, each layer fire output hole in lower section are auxiliary fire output hole, can obtain ideal outer ring flame distribution, guarantee that the heating to cookware is imitated
Fruit；By the circumferentially staggered setting of adjacent two layers fire output hole, it can prevent upper and lower level flame from interfering with each other, guarantee outer ring flame stablizes combustion
It burns.
Heating with burner flame to cookware, cookware stabilizer blade or foot piece on cookware bracket are heated simultaneously, reduce pot
Have the aperture of the fire output hole of stabilizer blade or foot piece region, and in the fire output hole of other regional choice larger apertures, it can both keep away
Exempt from flame to the transition calcination of cookware stabilizer blade or foot piece and the loss of heat, and can guarantee the heating intensity to cookware.
Auxiliary air by the way that inner ring flame is arranged in annular mixing chamber supplements through-hole, and inner ring flame can be enable abundant
Burning, improves the efficiency of combustion and heating intensity of burner.By the annular mixing chamber on ring-shaped fire cover lateral wall lower end and burner
Radial outside wall upper end docking, can avoid ring-shaped fire cover lateral wall to auxiliary air supplement through-hole block, guarantee secondary sky
Gas supplements the unobstructed of through-hole, guarantees the full combustion of inner ring flame.
In addition, by the way that premix chamber is arranged between combustion gas and air-in and annular mixing chamber, make combustion gas and air
By mixing twice, mixing more sufficiently, ensure that the completely burned of combustion gas, reduce the discharge of carbon monoxide.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing bicyclic flame burner；
Fig. 2 is the structural schematic diagram of the utility model energy-gathering burner；
Fig. 3 is the structural schematic diagram of the signified ring-shaped fire cover of label 2 in Fig. 2；
Fig. 4 is the sectional view of ring-shaped fire cover 2；
Fig. 5 is the partial sectional view of the signified burner of label 1 in Fig. 2.
Specific embodiment
For the design philosophy for clearly demonstrating the utility model, the utility model is illustrated below with reference to example.
Embodiment 1
In example as shown in Figure 2-5, a kind of energy-gathering burner of the utility model, including burner 1 is arranged on burner 1
There is an annular mixing chamber 11, buckle closure has ring-shaped fire cover 2 on mixing chamber 11, and ring-shaped fire cover 2 has radially spaced outside
Wall 21 and inboard wall 22, and the roof 23 being connected with two sidewalls top, lateral wall 21 uniformly go out with circumferential on inboard wall 22
Fire hole, the fire output hole 211 on lateral wall 21 extend to radial outside oblique upper, the fire output hole 221 on inboard wall 22 to diameter inwards
Extend above skew back.
Energy-gathering burner in the present embodiment on the basis of exporting complete two circles flame using a ring-shaped fire cover 2,
By being obliquely installed for fire output hole 211 and fire output hole 221, two iris out fire hole shape at an angle, are formed between two circle flames
One " no-man's-land circle ", when burning, should " no-man's-land circle " can play the role of assembling thermal energy, formation high temperature heat air mass
Circle, extends the bottom of a pan heating time, improves the heat utilization rate of high-temperature flue gas, improve combustion thermal efficiency, both guaranteed
The heating intensity and coverage area of burner, in turn simplify structure, reduce the processing cost of burner.
Embodiment 2
In example as shown in Figure 2-5, a kind of energy-gathering burner of the utility model, including burner 1 is arranged on burner 1
There is an annular mixing chamber 11, buckle closure has ring-shaped fire cover 2 on mixing chamber, and ring-shaped fire cover 2 has radially spaced lateral wall
21 and inboard wall 22, and the roof 23 being connected with two sidewalls top；Lateral wall 21 is obliquely installed, and to the ring-shaped fire cover 2
Radial inboard oblique upper extend, the inboard wall 22 extends vertically setting；The lower end of lateral wall 21 and inboard wall 22 is pressed respectively
In the radial outside wall 21 of annular mixing chamber 11 and the upper end of radial inboard wall 22, the lower end of lateral wall 21 is additionally provided with to downward
Put in the convex edge 24 of annular mixing chamber 11；It is additionally provided with 3 on burner 1 and extends diametrically through annular mixing chamber 11 for annular
12,3 through-holes of through-hole 12 of the radial inboard space secondary supplement air of mixing chamber 11 are circumferential uniformly distributed.
Cooperated by the convex edge 24 of 21 lower end of lateral wall and the radial outside wall 21 of annular mixing chamber 11, makes ring-shaped fire cover 2
It is embedded into 21 upper end of radial outside wall of annular mixing chamber 11, it is logical to auxiliary air supplement can avoid 2 lateral wall 21 of ring-shaped fire cover
Hole 12 is blocked, and is guaranteed the unobstructed of auxiliary air supplement through-hole 12, is guaranteed the full combustion of inner ring flame.
Circumferential on lateral wall 21 and inboard wall 22 to be evenly distributed with fire output hole, the fire output hole 211 on lateral wall 21 is to radial outside
Oblique upper extends, and the fire output hole 221 on inboard wall 22 extends to radial inboard oblique upper.
By being obliquely installed for fire output hole 211 and fire output hole 221, two iris out fire hole shape at an angle, enclose flames two
Between form one " no-man's-land circle ", when burning, should " no-man's-land circle " aggregation thermal energy, formation high temperature can be played the role of
Thermal energy air mass circle, extends the bottom of a pan heating time, improves the heat utilization rate of high-temperature flue gas, improves burning thermal effect
Rate both ensure that the heating intensity and coverage area of burner, and in turn simplify structure, and reduced the processing cost of burner.
The axis of fire output hole 221 on inboard wall 22 and horizontal angle α are 15 °~30 °, the fire output hole on lateral wall 21
211 be 30 °~45 ° with horizontal angle β.
Such angle setting, keeps the spatial dimension of " no-man's-land circle " more reasonable, if above-mentioned two angle is too small,
The space of " no-man's-land circle " is excessively flat, is unfavorable for the aggregation of heat；If above-mentioned two angle is excessive, " no-man's-land circle "
Space it is excessively narrow, the aggtegation of heat is little.
Exist in fire output hole 211 on lateral wall 21 and goes out fire correspondingly with 221 position of fire output hole on inboard wall 22
Hole, the axis of fire output hole intersect at same perpendicular, at this point, 211 axis of fire output hole on lateral wall 21 and inboard wall 22
On 221 axis of fire output hole between angle γ be 105 °~135 °.
After the value of α and β is fixed, γ is complementary with the sum of the angle of α, β, i.e. the dispersion angle of heat aggregation circle is
γ can farthest assemble heat at this point, the dispersion angle of " no-man's-land circle " reaches maximum value.
Fire output hole 221 on inboard wall 22 is located in same level, and the aperture of the fire output hole 221 is φ 1.5mm~φ
2.2mm, the circumferential pitch-row H of fire output hole 221 is 3.5mm~5.5mm, also, pot when using on cookware bracket is corresponded in circumferential direction
The aperture for having the fire output hole of stabilizer blade or foot panel region is less than the aperture in other regions.
By limiting the diameter and pitch-row H of the fire output hole 221 on inboard wall 22, keep the fire output hole on inboard wall 22 right
Ring-shaped fire cover 2 can generate suitable heat, if H is excessive, fire output hole 221 is dilute to crowding around for the bottom of a pan, be unfavorable for the bottom of a pan heat
Aggregation；If H is too small, fire output hole 221 is overstocked to crowding around for the bottom of a pan, and adjacent flame will certainly interact, and then influences fire
The full combustion of flame.The fire output hole aperture of stabilizer blade or foot piece placement region is smaller, both can avoid flame to cookware stabilizer blade or foot
The transition calcination of piece and the loss of heat, and can guarantee the heating intensity to cookware.Ignition electrode and thermocouple are arranged in aperture
The biggish region for being not provided with stabilizer blade or foot piece, prevents the aperture because of fire output hole too small, and ignition difficulties or mistake is caused to stop working
Situation.
About two layers fire output hole 211 being intervally arranged is provided on lateral wall 21, same layer fire output hole is located at same level
On, and be staggered in adjacent two layers fire output hole circumferential direction, the circumferential spacing L of top layer fire output hole is 5mm~6.5mm.Due to two
Layer fire output hole be staggered, the circumferential spacing of bottom fire output hole and the circumferential spacing L of top layer fire output hole are identical, for 5mm~
6.5mm。
Two layers of fire output hole every setting, can make flame be interspersed between the upper and lower, unaffected each other, be conducive to flame
Stablize burning.By limiting the circumferential spacing L of top layer fire output hole, suitable heat can be generated to ring-shaped fire cover 2, if L
Excessive, outer ring flame is few, is unfavorable for the heating in the bottom of a pan；If L is too small, adjacent flame can interact, and then influence flame
Full combustion.
The cooker racks (not shown) used in the present embodiment has 4 foot pieces, and lateral wall corresponded to 4 feet 21 last week upwards
The aperture of the fire output hole of panel region is less than the aperture in other regions, and the aperture for corresponding to the fire output hole of cookware stabilizer blade or foot panel region is
φ 1.5mm~φ 1.7mm, the aperture of the fire output hole in other regions are φ 2.3mm~φ 2.6mm.
211 aperture of the above-mentioned fire output hole setting of lateral wall 21 can both burn to the transition of cookware stabilizer blade or foot piece to avoid flame
The loss with heat is burnt, and can guarantee the heating intensity to cookware.
Fire output hole 211 on lateral wall 21 may also be configured to: the fire output hole of corresponding 4 foot panel regions in top layer fire output hole
Aperture is φ 1.5mm~φ 1.7mm, and the aperture of the fire output hole in other regions is φ 2.3mm~φ 2.6mm, bottom fire output hole
Aperture is φ 1.3mm~φ 1.6mm.
At this point, bottom flame plays the role of heat supplement to top layer flame.
Excessive calcination of the flame to cooker racks foot piece in order to prevent, cooker racks foot panel region are not provided with bottom fire output hole.
Channel 25 of igniting is additionally provided on roof 23, when due to igniting, the flame of the inboard wall 22 of the ring-shaped fire cover 2 that first ignites,
Flame of the channel 25 for inboard wall 22 of igniting guides to lateral wall 21, the flame for the lateral wall 21 that ignites.
Be provided on burner 1 for combustion gas and primary air input venturi ejector pipe 3, venturi ejector pipe 3 with it is described
The premix chamber 13 of combustion gas and air is provided between annular mixing chamber 11.
The gas of gas range mixed process are as follows:
Firstly, combustion gas and primary air via 3 injection of venturi ejector pipe into premix chamber 13, combustion gas and primary air exist
It is mixed in premix chamber 13, then, combustion gas and primary air enter annular mixing chamber 11, combustion gas by arrow direction shown in Fig. 5
It is further mixed in annular mixing chamber 11 with primary air；On the whole, combustion gas and primary air have biggish mixed
Space is closed, by the secondary mixing of combustion gas and primary air, makes the more abundant of gas mixing, is provided for the full combustion of combustion gas
It ensures, reduces the discharge of carbon monoxide.In addition, by venturi ejector pipe 3 can make combustion gas and primary air more easily into
Enter premix chamber 13 and annular mixing chamber 11.
It should be noted that some of which structure can have different selections other than the above-mentioned specific example provided.
Such as, multilayer fire output hole 211 can also be arranged in lateral wall 21 according to different use requirements；In fire output hole 211 on lateral wall 21
It can not also be corresponding with the fire output hole 221 on inboard wall 22；For the radial inboard space secondary supplement to annular mixing chamber 11
The through-hole 12 of air also can be set multiple, be determined according to actual use demand；Etc., and these are all art technologies
What personnel can be made on the basis of understanding the utility model thought based on its basic skills, therefore no longer enumerate herein.
Finally, it will be appreciated that embodiment of above is merely to illustrate that the principles of the present invention and uses
Illustrative embodiments, however the utility model is not limited thereto.For those of ordinary skills, it is not departing from
In the case where the principles of the present invention and essence, various changes and modifications can be made therein, these variations and modifications are also considered as this
The protection scope of utility model.
Claims (10)
1. a kind of energy-gathering burner, which is characterized in that including burner, an annular mixing chamber is provided on burner, is detained on mixing chamber
It is stamped ring-shaped fire cover, ring-shaped fire cover has radially spaced lateral wall and inboard wall, and is connected with two sidewalls top
Roof, circumferential on lateral wall and inboard wall to be evenly distributed with fire output hole, the fire output hole on lateral wall extends to radial outside oblique upper,
Fire output hole on inboard wall extends to radial inboard oblique upper.
2. energy-gathering burner according to claim 1, which is characterized in that the lateral wall is obliquely installed, and to the ring
The radial inboard oblique upper of shape fire cover extends, and the inboard wall extends vertically setting.
3. energy-gathering burner according to claim 2, which is characterized in that the axis and water of the fire output hole on the inboard wall
Flat angle is 15 °~30 °, and the fire output hole on the lateral wall and horizontal angle are 30 °~45 °.
4. energy-gathering burner according to claim 3, which is characterized in that the fire output hole on the inboard wall is located at same water
In plane, the aperture of the fire output hole is φ 1.5mm~φ 2.2mm, and the circumferential pitch-row of fire output hole is 3.5mm~5.5mm, also,
The aperture of the fire output hole of cookware stabilizer blade or foot panel region in circumferential direction when corresponding use on cookware bracket is less than the hole in other regions
Diameter.
5. energy-gathering burner according to claim 3, which is characterized in that be provided on the lateral wall at least about two layers
The fire output hole being intervally arranged, same layer fire output hole are located in same level, and are staggered in adjacent two layers fire output hole circumferential direction,
The circumferential spacing of top layer fire output hole is 5mm~6.5mm.
6. energy-gathering burner according to claim 5, which is characterized in that corresponded to pot when using the lateral wall last week upwards
The aperture for having the fire output hole of the cookware stabilizer blade or foot panel region on bracket is less than the aperture in other regions, corresponding cookware stabilizer blade or foot
The aperture of the fire output hole of panel region is φ 1.5mm~φ 1.7mm, and the aperture of the fire output hole in other regions is φ 2.3mm~φ
2.6mm。
7. energy-gathering burner according to claim 5, which is characterized in that corresponding in the top layer fire output hole on the lateral wall
The aperture of the fire output hole of cookware stabilizer blade or foot panel region when use on cookware bracket is φ 1.5mm~φ 1.7mm, other regions
The aperture of fire output hole be φ 2.3mm~φ 2.6mm, the aperture of each layer fire output hole is φ 1.3mm~φ below top layer fire output hole
1.6mm。
8. energy-gathering burner according to claim 7, which is characterized in that below the top layer fire output hole on the lateral wall
Cookware stabilizer blade or foot panel region in each layer fire output hole circumferential direction when corresponding use on cookware bracket are not provided with fire output hole.
9. energy-gathering burner according to claim 1, which is characterized in that the lateral wall of the ring-shaped fire cover and described
The lower end of inboard wall is pressed respectively against the radial outside wall of the annular mixing chamber and the upper end of radial inboard wall, and ring-shaped fire cover
The lower end of lateral wall be additionally provided with the convex edge for extending downwardly into annular mixing chamber；Several radial directions are additionally provided on the burner
Through-hole of the annular mixing chamber for the radial inboard space secondary supplement air to annular mixing chamber is extended through, several
The through-hole is circumferentially uniformly distributed.
10. energy-gathering burner according to claim 1, which is characterized in that be provided on the burner for combustion gas and primary
The venturi ejector pipe of air input, is provided with the premix of combustion gas and air between venturi ejector pipe and the annular mixing chamber
Chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560144.2U CN208936154U (en) | 2018-09-25 | 2018-09-25 | A kind of energy-gathering burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560144.2U CN208936154U (en) | 2018-09-25 | 2018-09-25 | A kind of energy-gathering burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208936154U true CN208936154U (en) | 2019-06-04 |
Family
ID=66722264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821560144.2U Active CN208936154U (en) | 2018-09-25 | 2018-09-25 | A kind of energy-gathering burner |
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| Country | Link |
|---|---|
| CN (1) | CN208936154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587093A (en) * | 2020-08-28 | 2021-11-02 | 宁波方太厨具有限公司 | Energy gathering ring assembly and gas stove |
-
2018
- 2018-09-25 CN CN201821560144.2U patent/CN208936154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587093A (en) * | 2020-08-28 | 2021-11-02 | 宁波方太厨具有限公司 | Energy gathering ring assembly and gas stove |
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