Baking appliance
阅读说明:本技术 烘焙器具 (Baking appliance ) 是由 高云清 陈维维 许智波 吴坚 黄杰泉 单茂振 于 2018-06-28 设计创作,主要内容包括:本发明了一种烘焙器具,烘焙器具包括:壳体;内壁,设置在壳体的内部,壳体与内壁围合形成发热腔;发热元件及叶轮,均位于发热腔的内部,叶轮设置在壳体上;凸台,设置在与叶轮相对应的内壁上,凸台向远离叶轮的方向伸出,叶轮位于凸台与壳体之间,使得位于叶轮外侧的凸台与壳体在叶轮的外周形成风道,在凸台的侧壁上包括至少一处凹陷部,凹陷部向叶轮轴心的方向凹陷,凸台的侧壁到叶轮轴心的距离不完全相等;多个出风口,开设在凸台的底面上,并与风道相邻。在风道内的气流量不变的情况下通过设置凹陷部使得风道内的风速增大,可以保证由出风口处吹出的风速度越快,加热室内的热均匀性越好。(The present invention provides a roasting appliance, comprising: a housing; the inner wall is arranged in the shell, and the shell and the inner wall enclose to form a heating cavity; the heating element and the impeller are positioned in the heating cavity, and the impeller is arranged on the shell; the boss is arranged on the inner wall corresponding to the impeller, the boss extends out in the direction far away from the impeller, the impeller is positioned between the boss and the shell, so that an air channel is formed between the boss positioned on the outer side of the impeller and the shell on the periphery of the impeller, the side wall of the boss comprises at least one concave part, the concave part is concave towards the direction of the axis of the impeller, and the distance from the side wall of the boss to the axis of the impeller is not completely equal; and the air outlets are formed in the bottom surface of the boss and are adjacent to the air duct. The wind speed in the air channel is increased by arranging the concave part under the condition that the air flow in the air channel is not changed, so that the faster the wind speed blown out from the air outlet is, the better the heat uniformity in the heating chamber is.)
1. A roasting appliance, characterized in that it comprises:
a housing;
the inner wall is arranged inside the shell, and the shell and the inner wall enclose to form a heating cavity;
the heating element and the impeller are positioned in the heating cavity, and the impeller is arranged on the shell;
the boss is arranged on the inner wall corresponding to the impeller, the boss extends in the direction far away from the impeller, the impeller is positioned between the boss and the shell, so that an air channel is formed between the boss positioned on the outer side of the impeller and the shell on the periphery of the impeller, the side wall of the boss comprises at least one concave part, the concave part is concave in the direction of the axis of the impeller, and the distance from the side wall of the boss to the axis of the impeller is not completely equal; and the air outlets are formed in the bottom surface of the boss and are adjacent to the air duct.
2. The roasting apparatus of claim 1, further comprising:
the air inlets are distributed on the boss in a concentrated mode and are opposite to the axis of the impeller.
3. Baking apparatus according to claim 1,
the projection of the concave part in the plane of the inner wall comprises an arc shape; and/or
The concave part is connected with the part, not the concave part, of the side wall of the boss in an arc shape.
4. Baking apparatus according to claim 3,
the projection of the boss in the plane of the inner wall is rectangular, and the concave part is positioned at the vertex angle of the rectangle; and/or
The projection of the boss in the plane where the inner wall is located is a rectangle, the top corner of the rectangle is far away from the recessed portion, and the air outlets are arranged adjacent to the recessed portion.
5. Baking appliance according to any of the claims 1 to 4,
the heating element is enclosed to form a hollow heating area;
the impeller is located in the heating area, so that the heating element is arranged on the periphery of the impeller in a surrounding mode, and the impeller is located in the geometric center of the heating cavity.
6. Baking appliance according to any of the claims 1 to 4,
the number of the air outlets positioned at the top end of the boss is larger than that of the air outlets positioned at the bottom end of the boss.
7. Baking appliance according to any of the claims 1 to 4,
the wall surface far away from the heating element in the inner wall is a first wall surface, the first wall surface is not connected with the boss, and at least one air outlet is arranged on the first wall surface in the plurality of air outlets.
8. Baking apparatus according to claim 7,
when the number of the air outlets on the first wall surface is at least two, the distance between any two adjacent air outlets in the at least two air outlets is smaller as the distance from the heating element is larger.
9. Baking apparatus according to claim 7,
when the number of the air outlets on the first wall surface is at least two, the opening area of each air outlet in the at least two air outlets is larger as the air outlet is farther away from the heating element.
10. The roasting apparatus according to any one of claims 1 to 4, further comprising:
the food material containing barrel can be installed on one side, away from the impeller, of the inner wall;
when the food material containing barrel is arranged in the shell, the height of the geometric center of the impeller corresponds to the middle lower part of the food material containing barrel.
11. The roasting apparatus of claim 10, further comprising:
the stirring assembly is arranged below the food material containing barrel, and at least part of the stirring assembly extends into the food material containing barrel.
Technical Field
The invention relates to the field of kitchen utensils, in particular to a baking appliance.
Background
The baking products are more and more valued by consumers in China, and mainly aim at baking bread. Most consumers knead dough with a bread machine, ferment with a constant temperature box, and ferment and bake with an oven; with the diversification of the interests and hobbies of Chinese people, the baked food gradually extends to the baking of the chips and the meat, and the functions of the baked product are gradually enriched.
Baking products at entry level, namely bread makers, are characterized in that a heating tube is fixed in the middle of a sealed cavity, the heating tube is heated when the bread maker is electrified to work, and the temperature in the cavity is raised through infrared radiation to heat food. The heating tube is used for heat radiation heating, the heating is slow, the thermal compensation is slow, the temperature fluctuation period is long, and the baking time is long. When the bread is baked, the heating power of the heating tube is low, which can be compensated by prolonging the heating time, but when the chips and meat products are baked, the requirements of consumers cannot be met.
The solution of baking products in the market is to adopt a high-power hot air circulation structure, install a heating tube in the product, and dispose a cover machine motor, drive the air in the cavity through the flabellum and rotate, the place that inside has the difference in temperature carries out thermal interdynamic through the flow of air, reduces the difference in temperature. However, the airflow flows under the action of the fan until the airflow is blocked by the wall of the heating cavity and then enters the heating cavity through the holes in the wall of the heating cavity, the air pressure is small, the flow rate is not fast enough, the air vortex effect is more concentrated at the air inlet, the speed is slower as the blown airflow is farther, the heat balance effect on the periphery is poorer, the food surface close to the air inlet is uniformly burnt, and the burnt color at the far end is poorer.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
One aspect of the present invention provides a roasting appliance.
In view of the above, the present invention provides a roasting appliance comprising: a housing; the inner wall is arranged in the shell, and the shell and the inner wall enclose to form a heating cavity; the heating element and the impeller are positioned in the heating cavity, and the impeller is arranged on the shell; the boss is arranged on the inner wall corresponding to the impeller, the boss extends out in the direction far away from the impeller, the impeller is positioned between the boss and the shell, so that an air channel is formed between the boss positioned on the outer side of the impeller and the shell on the periphery of the impeller, the side wall of the boss comprises at least one concave part, the concave part is concave towards the direction of the axis of the impeller, and the distance from the side wall of the boss to the axis of the impeller is not completely equal; and the air outlets are formed in the bottom surface of the boss and are adjacent to the air duct.
The baking device provided by the invention comprises a shell, an inner wall, a heating element, an impeller and a boss, wherein the shell and the inner wall enclose to form a heating cavity, the heating element and the impeller are positioned in the heating cavity, the inner wall comprises at least one wall surface, the wall surface of the at least one wall surface of the inner wall corresponding to the impeller is provided with the boss, the boss extends out in the direction far away from the impeller, so that the space of the heating cavity is expanded by the boss, the impeller is positioned between the boss and the shell, the heating cavity is not fully occupied by the impeller, an air channel is formed on the periphery of the impeller, the air channel is formed by part of the boss, part of the shell and the impeller, when the impeller rotates, gas generates centrifugal force, the impeller guides the flowing air to the direction of the air channel outside the impeller, and the blown gas continuously flows in the air channel along the turning direction of the impeller, along with the continuous surge of the air flow to the air duct, the air flow in the air duct originally flows rapidly under the thrust, and because a plurality of air outlets are formed at the positions adjacent to the air duct, the air can be discharged outwards from the air outlets for heating and cooking when rotating in the air duct; at this moment, the side wall of the boss comprises at least one sunken part sunken towards the direction of the axle center of the impeller, so that the width of the air channel is changed through the sunken part, namely, the width of the air channel positioned at the sunken part is smaller than the width of the air channel adjacent to the sunken part, when air moves in the air channel, because the width of the air channel positioned at the sunken part is suddenly changed, when the air flows through the sunken part, the air channel is narrowed, so that the air pressure is increased, the air speed is increased under the condition that the air flow in the air channel is unchanged, the air speed blown out from the air outlet is higher, the L distance in the heating chamber where the food material containing barrel of the baking appliance in the shell is positioned is larger, the formed hot air circulation range is larger, and the heat uniformity in the heating chamber is better.
Specifically, in the process of the air flow flowing in the air duct, when the air flow in the air duct is the same, the value of Q ═ vxA (wherein Q is the flow rate, v is the flow velocity, and A is the cross-sectional area) is fixed; that is, v is Q/a, and the smaller the cross-sectional area a of the air duct at the recess, the larger v here. Pressure of the flowing gas at the same time: p is 0.5 × ρ × v2(where ρ is the density), the larger v will be, the larger P; the pressure P of the air outlet is F/a1 (where a1 is the sectional area of the air outlet, and F is the wind power), since a1 is constant, the wind power of the air outlet can be obtained, F is P × a1, i.e., the larger P, the larger F, i.e., the larger the vector acceleration a of the air outlet, and since v1 is 0.5a2I.e., the larger a, the larger v 1. Meanwhile, when the impeller is above 2500rpm, the wind speed v1 of the air outlet can reach 15.5m/s according to the narrow opening of the air channel, so that the heat blown out from the air outlet to the heating chamber can basically generate a vortex effect, and the heat balance can be quickly achieved.
When the wind speed at the air outlet is bigger, the higher the heat efficiency is, the faster the heat exchange in the heating chamber is, the faster the uniformity of the realized temperature field is, the bigger the range is, and the better the food baking effect is. Meanwhile, the heating speed is high, the heat in the heating chamber is more uniform, the temperature difference fluctuation is small, the baking effect is uniform, and the taste is better.
Preferably, the impeller is a centrifugal impeller, which is beneficial to collecting gas in a centralized manner, blowing the gas to all parts of the air duct in a dispersed manner, and is beneficial to uniformly distributing the temperature of the gas in the air duct, thereby being beneficial to uniformly distributing the temperature in the heating chamber. Of course, the impeller may also be a mixed-flow impeller, or a combination of a plurality of impellers may be selected, which is not listed here.
In addition, the baking appliance provided by the technical scheme of the invention also has the following additional technical characteristics:
in any of the above technical solutions, preferably, the roasting appliance further includes: the air inlets are distributed on the boss in a concentrated mode and are opposite to the axis of the impeller.
In the technical scheme, the axis area of the impeller is an air inlet area, so that a plurality of air inlets are formed in the inner wall of the wall corresponding to the impeller and correspond to the geometric center of the impeller, the air in the heating cavity can flow into the heating cavity rapidly under the action of the impeller, the hot air circulation speed in the heating cavity is increased, and the cooking time is shortened. Especially, when the impeller is positioned at one side of the heating element, the gas which is led out of the heating cavity in time can be quickly heated by the heating element, and the integral heating efficiency of the baking appliance is improved.
In any of the above solutions, preferably, a projection of the recess in a plane of the inner wall includes an arc.
In this technical scheme, set up the projection of depressed part in the plane of inner wall place to including the arc, including the depressed part of arc structure sunken to the impeller direction promptly for when the air current in the wind channel passes through curved depressed part, the depressed part can produce less resistance to the air current, guarantees that the air current can flow along smooth curved depressed part, avoids the air current to produce the loss of energy in depressed part department. Preferably, the whole section of the concave part is a partial circular arc.
In any of the above technical solutions, preferably, the concave portion is connected with the non-concave portion of the sidewall of the boss in an arc shape.
In this technical scheme, the boss lateral wall includes depressed part and non-depressed part, and non-depressed part is not inside sunken region, and consequently the width change department of passageway is depressed part and non-depressed part contact department, and the wind channel diminishes in this contact department, and the speed of air current increases, consequently for guaranteeing that the air current changes steadily, sets up non-depressed part department in depressed part and the boss lateral wall into the arc and is connected, reduces the resistance to the air current. Preferably, the entry point and the exit point of the concave part are tangent to the non-concave part in the side wall of the boss, so that the air flow can be smoothly passed.
In any of the above technical solutions, preferably, a projection of the boss in a plane where the inner wall is located is a rectangle, and the recess is located at a top corner of the rectangle.
In this technical scheme, set up the projection of boss in the inner wall place plane into the rectangle, the bottom surface of boss is the rectangle promptly, set up the bottom surface of boss into the rectangle, can guarantee that the space in the intracavity that generates heat is enough big, set up the depressed part in the apex angle department of rectangle simultaneously, the quantity of depressed part is four promptly, the depressed part is inside sunken, avoided original air current passing through apex angle department, energy loss when needing to take place sharp turn to, guaranteed that the air current can have higher speed all the time, and when the depressed part, further promote air current speed.
In any one of the above technical solutions, preferably, a projection of the boss in a plane where the inner wall is located is a rectangle, the recessed portion is far away from a top corner of the rectangle, and the plurality of air outlets are arranged adjacent to the recessed portion.
In this technical scheme, set up the projection of boss in the inner wall place plane into the rectangle, the bottom surface of boss is the rectangle promptly, set up the bottom surface of boss into the rectangle, can guarantee that the space in the intracavity that generates heat is enough big, set up the depressed part in the apex angle department of keeping away from the rectangle simultaneously, simultaneously with a plurality of air outlets and the adjacent setting of depressed part, the business turn over wind gap is located the wind channel that the depressed part was located, like this when the air current passes through the depressed part, the speed is accelerated and directly outwards flows from the air outlet here, can guarantee like this that high-speed air current can directly flow in to the heating chamber, the energy loss of air current after accelerating has been reduced.
In any of the above technical solutions, preferably, the heating element encloses to form a hollow heating area; the impeller is located in the heating area, so that the heating element surrounds the periphery of the impeller, and the impeller is located in the geometric center of the heating cavity.
In this technical scheme, encircle the setting with heating element for heating element encloses to close and forms hollow heating region, sets up the impeller in this heating region, and the wind that blows out by the impeller outward promptly can heat to heating element on, still can outwards blow away the air that has been heated near heating element simultaneously, has improved heating efficiency, and then has guaranteed the culinary art effect.
Simultaneously, set up the impeller in the geometric centre department in chamber that generates heat for the impeller can be even will generate heat the chamber inside everywhere gas and blow away.
In any one of the above technical solutions, preferably, the number of the air outlets located at the top end of the boss is greater than the number of the air outlets located at the bottom end of the boss.
In this technical scheme, the quantity of the air outlet that sets up the boss top is greater than the quantity of boss bottom air outlet, this is because the air in the chamber that generates heat is heated the back, because the cold air that is lighter than of hot-air, consequently the hot air volume of the top department in the chamber that generates heat can be greater than the hot air volume of the bottom department in the chamber that generates heat, consequently sets up the quantity of top air outlet to the quantity that is greater than the air outlet of bottom, guarantees to have more heats to blow off by the chamber that generates heat outward, has improved heating efficiency.
In any of the above technical solutions, preferably, a wall surface of the inner wall that is far away from the heating element is a first wall surface, the first wall surface is not connected to the boss, and at least one of the plurality of air outlets is disposed on the first wall surface.
In this technical scheme, the wall that does not connect with the boss in the settlement inner wall is first wall, the wall of keeping away from heating element promptly is first wall, through setting up the air outlet on first wall, make hot gas can follow the heating chamber inside that the edible material that air outlet on the first wall got into baking apparatus held the bucket place, can reduce the wall department temperature that heating element corresponds and be higher and the inside difference in temperature of heating chamber that arouses, make the inside edible material of heating chamber, not only can be heated at the regional heat transfer and the thermal radiation in heating element place, can also be heated at the regional hot gas that the air outlet flowed in of heating element place, the homogeneity of being heated of edible material has been improved, the cooking effect is improved.
In any one of the above technical solutions, preferably, when the number of the air outlets on the first wall surface is at least two, the distance between any two adjacent air outlets of the at least two air outlets is smaller as the distance from the heating element is larger.
In this technical scheme, on first wall, because the air-out temperature of the air outlet that is more and more close to heating element is higher, the air-out temperature of the air outlet that is more and more far away from heating element is lower, and then the air-out area of the air outlet that is more and more high through control air-out temperature is less, the air-out area of the air outlet that the air-out temperature is lower is great, can synthesize the air-out effect of each air outlet, avoid each air outlet to lead to that the inside regional temperature that is close to heating element of inner wall is higher because of the air-out area is the same, be favorable to.
In any one of the above technical solutions, preferably, when the number of the air outlets on the first wall surface is at least two, the opening area of each air outlet of the at least two air outlets is larger as the air outlet is farther away from the heating element.
In this technical scheme, on first wall, because the air-out temperature of the air outlet that is more close to heating element is higher, the air-out temperature of the air outlet that is more far away from heating element is lower, and then the interval between two adjacent air outlets that is higher through controlling the air-out temperature is great, the interval between two adjacent air outlets that the air-out temperature is lower is less, can synthesize the air-out effect of each air outlet, it is higher to avoid each air outlet to lead to the inside regional temperature that is close to heating element of inner wall because of the interval is the same, be favorable to guaranteeing the inside temperature evenly distributed of inner wall.
In any of the above technical solutions, preferably, the roasting appliance further includes: the food material containing barrel can be arranged on one side of the inner wall, which is far away from the impeller; when the food material containing barrel is arranged in the shell, the height of the geometric center of the impeller corresponds to the middle lower part of the food material containing barrel.
In this technical scheme, when eating the material and holding the bucket setting in the intracavity that generates heat, set up the geometric centre place height of impeller to corresponding with the well lower part that eats the bucket, well lower part is the position below the middle part promptly, because the air quality that is heated is lighter like this, low-temperature gas concentrates on well lower part, and low-temperature gas can be inhaled the inside of heating chamber through the negative pressure that the geometric centre department of impeller formed fast, improves air flow efficiency, shortens to cook for a long time.
In any of the above technical solutions, preferably, the roasting appliance further includes: the stirring assembly is arranged below the food material containing barrel, and at least part of the stirring assembly extends into the food material containing barrel.
In this technical scheme, the roasting appliance still includes the stirring subassembly, and the stirring subassembly sets up in the below of eating the material and holding the bucket, and the stirring subassembly at least part stretches into to eat the material and holds the bucket in for the stirring subassembly can hold the edible material in the bucket to eating the material and carry out stirring effect, makes the roasting appliance except can also stir or break up including heating, baking and fermentation etc. have improved the application occasion of roasting appliance.
Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
figure 1 shows a schematic view of a roasting appliance provided by an embodiment of the present invention;
figure 2 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention;
figure 3 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention;
figure 4 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention;
figure 5 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention;
figure 6 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention;
figure 7 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention;
figure 8 shows yet another schematic view of a baking appliance provided by an embodiment of the present invention.
Reference numerals:
wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:
12 shells, 14 heating elements, 16 impellers, 18 food material containing barrels, 20 heating chambers, 22 stirring assemblies, 24 inner walls, 26 heating cavities, 28 air inlets, 30 air outlets, 32 bosses, 34 concave parts and 36 air ducts.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A baking appliance provided according to an embodiment of the present invention is described below with reference to fig. 1 to 8, wherein the direction of the arrows in fig. 1 to 4 and 6 indicate the flow direction of the air flow.
As shown in fig. 1 to 4, the roasting appliance includes: a
The baking device provided by the invention comprises a shell 12, an inner wall 24, a heating element 14, an impeller 16 and a boss 32, wherein the shell 12 and the inner wall 24 enclose to form a heating cavity 26, the heating element 14 and the impeller 16 are both positioned in the heating cavity 26, the inner wall 24 comprises at least one wall surface, the boss 32 is arranged on the wall surface corresponding to the impeller 16 in at least one wall surface of the inner wall 24, the boss 32 extends in the direction far away from the impeller 16, so that the space of the heating cavity 26 is expanded by the boss 32, the impeller 16 is positioned between the boss 32 and the shell 12, meanwhile, the heating cavity 26 is not fully occupied by the impeller 16, an air channel 36 is formed on the periphery of the impeller 16, the air channel 36 is formed by part of the boss 32, part of the shell 12 and the impeller 16, when the impeller 16 rotates, the gas generates centrifugal force, the impeller 16 guides the flowing air to the direction of the air channel 36 outside, so that the blown gas continues to flow in, the air flows in the air duct 36 along the turning direction of the impeller 16, and along with the continuous flow of air rushing towards the air duct 36, the air flow in the air duct 36 originally flows rapidly under the thrust, and because the air outlets 30 are formed at the positions adjacent to the air duct 36, the air can be discharged outwards from the air outlets 30 for heating and cooking when rotating in the air duct 36; at this time, the side wall of the boss 32 includes at least one recess 34 recessed toward the axial center of the impeller 16, so that the width of the air duct 36 is changed by the recess 34, that is, the width of the air duct 36 located at the recess 34 is smaller than the width of the air duct 36 adjacent to the recess 34, when the air moves in the air duct 36, because the width of the air duct 36 at the recess 34 changes suddenly, when the air flows through the recess 34, the air duct 36 becomes narrow, which results in an increase in air pressure, and the air speed is increased under the condition that the air flow in the air duct 36 is not changed, so that the faster the air speed blown out from the air outlet 30 is, the greater the L distance blown into the heating chamber 20 where the food containing barrel 18 of the baking appliance is located in the housing 12 is, the larger the circulation range of the formed hot air is, and the better the thermal uniformity in the heating chamber 20 is.
Specifically, in the process of the air flow flowing in the
When the wind speed of the
Preferably, the
As shown in fig. 5 and 8, in one embodiment provided by the present invention, preferably, the roasting appliance further comprises: the
In this embodiment, the axial region of the
As shown in fig. 1 and 2, in one embodiment provided by the present invention, the projection of the
In this embodiment, the projection of the
In one embodiment of the present invention, as shown in FIG. 2, the
In this embodiment, the sidewall of the
In one embodiment of the present invention, as shown in fig. 1, preferably the projection of the
In this embodiment, the projection of the
As shown in fig. 2, in one embodiment of the present invention, preferably, the projection of the
In this embodiment, the projection of the
As shown in fig. 3, 4, 6 and 7, in one embodiment of the present invention, the
In this embodiment, the
Meanwhile, the
In one embodiment of the present invention, it is preferable that the number of the
In this embodiment, the number of the
As shown in fig. 6 and 7, in one embodiment of the present invention, preferably, a wall surface of the
In this embodiment, the wall surface of the
As shown in fig. 6 and 7, in an embodiment of the present invention, preferably, when the number of the
In this embodiment, on the first wall surface, because the air outlet temperature of the
As shown in fig. 6 and 7, in an embodiment of the present invention, preferably, when the number of the
In this embodiment, on the first wall surface, because the air-out temperature of the
In one embodiment provided by the present invention, preferably, the roasting appliance further comprises: a food
In this embodiment, when the
In one embodiment provided by the present invention, preferably, the roasting appliance further comprises: stirring
In this embodiment, the baking device further includes a stirring
In the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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