CN110652225B - Baking appliance - Google Patents
Baking appliance Download PDFInfo
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- CN110652225B CN110652225B CN201810689766.3A CN201810689766A CN110652225B CN 110652225 B CN110652225 B CN 110652225B CN 201810689766 A CN201810689766 A CN 201810689766A CN 110652225 B CN110652225 B CN 110652225B
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- shell
- wall
- heating element
- heat dissipation
- heating
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/08—Bread-toasters
- A47J37/0807—Bread-toasters with radiating heaters and reflectors
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- Food Science & Technology (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
The present invention provides a roasting appliance, comprising: a housing; the heating element is arranged in the shell and comprises two fixed ends, a middle section positioned between the two fixed ends and two connecting terminals respectively connected with the two fixed ends; the heat dissipation device comprises a plurality of heat dissipation pieces, wherein fixing openings are formed in the heat dissipation pieces, the heat dissipation pieces are directly or indirectly arranged on the outer wall of the middle section through the fixing openings, and gaps are formed between every two heat dissipation pieces. The heat dissipation piece is arranged on the heating element through the fixing port, so that heat dissipated by the heating element can be transferred to the outside air through the surface area of the heat dissipation piece, and can be transferred through the heat dissipation piece, and the heat dissipation area is increased.
Description
Technical Field
The invention relates to the field of kitchen utensils, in particular to a baking appliance.
Background
The baking machine is a common household appliance in daily life, can realize different operations such as dough kneading, fermentation, baking and the like, but the baking machine (such as a bread machine) in the related technology is mainly a single heating tube, the power of the heating tube is limited by an upper limit due to insufficient baking space, and the most direct influence is slow heating, slow thermal compensation, long temperature fluctuation period and long bread baking time; the indirect effects are poor mouthfeel of the bread, a feeling similar to stuffiness, poor user experience of consumers and finally low frequency of use of the baker.
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 heating element is arranged in the shell and comprises two fixed ends, a middle section positioned between the two fixed ends and two connecting terminals respectively connected with the two fixed ends; the heat dissipation device comprises a plurality of heat dissipation pieces, wherein fixing openings are formed in the heat dissipation pieces, the heat dissipation pieces are directly or indirectly arranged on the outer wall of the middle section through the fixing openings, and gaps are formed between every two heat dissipation pieces.
The baking device provided by the invention comprises a shell, a heating element and a plurality of radiating pieces, wherein the heating element comprises two fixed ends and a middle section positioned between the two fixed ends, the fixed ends are used for well fixing the position of the middle section, the middle section is used for heating so that heat can be transmitted outwards for cooking, a fixing port is formed in each radiating piece, and each radiating piece is arranged on the heating element through the corresponding fixing port, so that the heat radiated by the heating element can be transmitted to the outside air through the surface area of the corresponding radiating piece and can also be transmitted through the corresponding radiating piece, the radiating pieces are connected with the surfaces of the middle sections of the heating elements through the corresponding fixing ports, the heat can be directly transmitted outwards in a heat transmission mode, the radiating area is increased, meanwhile, specific gaps are reserved between any two of the plurality of radiating pieces, and the plurality of radiating pieces are prevented from being attached too tightly to be unfavorable for increasing the contact area of the radiating pieces and the air, guaranteed thermal quick transmission, consequently can guarantee to bake the whole heat radiating area increase of utensil, promptly under the same condition of difference in temperature, the heat conduction volume between heating element and the air is faster, and the heat radiation is more, and the temperature rise reaction is rapider, and the temperature fluctuation is littleer, and heat transfer efficiency is higher, toasts the effect more even, and fermentation and toast the effect better when heating the edible material, the epidermis of the bread of culinary art completion is more crisp, and inside is more soft, and the taste is better.
It is conceivable that, in the case of a solution in which the heat sink is arranged directly or indirectly on the outer wall of the middle section via the fixing opening, when the heat sink is arranged directly on the outer wall of the middle section via the fixing opening, it is understood that the heat dissipating members are fitted over the intermediate section through the fixing ports, and in order to secure the gaps between the respective heat dissipating members, when the heat dissipation piece is sleeved, a gap is reserved between every two heat dissipation pieces, and the heat dissipation pieces are connected with the middle section after the heat dissipation pieces are sleeved, can be connected through a connecting layer or solder to fill the gap between the heat sink and the middle section, meanwhile, the heat sink can be well fixed after being sleeved, when the heat sink is indirectly arranged on the outer wall of the middle section through the fixing port, it can be understood that there are other components between the heat sink and the outer wall of the middle section to facilitate connection between the heat sink and the outer wall of the middle section, which is beneficial to further improve the heat dissipation effect.
Preferably, the heating element is a heating tube, a heating wire, an infrared heating element, and the like, and the heating element further includes two connecting terminals, and the two connecting terminals connect the two fixed ends with an external power supply respectively, so that the heating element is turned on.
Preferably, the fixing opening is formed in the central area of the heat dissipation member, so that when the heat dissipation member is sleeved on the heating element through the fixing opening, on one hand, the fixing opening can be ensured to be a closed opening, and the periphery of the fixing opening is provided with wall surfaces to ensure that the heat dissipation member is not easy to separate from the heat dissipation member from the fixing opening; on the other hand, the wall surfaces around the fixing opening can be ensured to be contacted with the heating element so as to enlarge the heat dissipation area. Of course, the fixing port can also be arranged at the edge area of the heat dissipation member, so that the fixing port is not closed, and the heat dissipation member is easily clamped at the periphery of the heating element through the fixing port.
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 connecting shell is sleeved on the outer wall of at least part of the middle section, and the plurality of radiating pieces are arranged on the outer wall of the connecting shell.
In the technical scheme, the baking appliance further comprises a connecting shell, the connecting shell is arranged between the radiating pieces and the middle sections, the inner walls of the connecting shell are attached to the outer walls of the adjacent middle sections, so that at least part of the middle sections can be wrapped by the connecting shell, and meanwhile, the outer walls of the connecting shell are connected with the radiating pieces; on the other hand connect the shell knot to establish on the outer wall of at least partial interlude, can increase the area of contact between connection shell and the interlude, because the speed of heat transfer between the contact surface is obviously greater than the speed that the heat carried out the transmission through the air, connect the shell with wrapping up on at least partial outer wall of interlude and can further improve the speed of heat transfer.
Preferably, the thickness of each place of connecting shell is even for the heat transfer speed everywhere of connecting shell is the same, guarantees to the food material of baking apparatus and holds the heating effect everywhere of bucket equal.
Preferably, the connecting shell can completely cover the surface of the middle section, and can also cover part of the surface of the middle section.
In any of the above technical solutions, preferably, the connection shell includes a first shell and a second shell, and the first shell and the second shell are fastened on the surface of the middle section; each radiating piece comprises an upper radiating fin and a lower radiating fin, an upper groove and a lower groove are respectively formed in the surface, opposite to the lower radiating fin, of the upper radiating fin, the upper groove and the lower groove are enclosed to form a fixing opening, the upper radiating fin is connected with the first shell, and the lower radiating fin is connected with the second shell.
In the technical scheme, each radiating piece comprises an upper radiating piece and a lower radiating piece which are spliced, and the surface of the upper radiating fin and the lower radiating fin which are jointed is provided with an upper groove and a lower groove, so that the upper groove and the lower groove are enclosed to form a fixed opening, the upper groove of the upper radiating fin is connected with the first shell, the lower groove of the lower radiating fin is connected with the second shell, when the heating element and the connecting shell are installed, the first shell and the second shell are respectively buckled at two sides of the middle section, the middle section is simultaneously limited by the first shell and the second shell at two sides, after the fixing of the middle section is finished, the first shell and the second shell are detachably connected, or the upper radiating fin and the lower radiating fin are detachably connected, so that the assembling process is convenient and simple, and later-period disassembly and maintenance are easy.
In any of the above technical solutions, preferably, the heating element is a heating tube, and the inner wall of the connecting shell is an arc-shaped structure.
In the technical scheme, the heating element is set as the heating tube, so that when the space of the heating cavity in the shell is enough, the number of the heating tubes can be increased or the effective heating area of the heating tubes can be increased to increase the heating efficiency; and the inner wall of the connecting shell is set to be of an arc-shaped structure, so that the connecting shell and the heating element can be completely attached to each other, and the heat conduction effect is ensured to be better.
In any of the above technical solutions, preferably, the heat sink has a ring structure.
In the technical scheme, when the heating element is a heating tube, the heat dissipation elements are correspondingly arranged in an annular shape, and the circle center of each heat dissipation element is concentric with the circle center of the cross section of the adjacent heating element, so that the distances from each point of the heat dissipation elements at the same radius to the heating tube are equal, and the heat transfer speed on the heat dissipation elements is ensured to be uniform.
In any one of the above technical solutions, preferably, the length of the connecting shell is equal to the length of the middle section, and the plurality of heat dissipation members are uniformly arranged on the connecting shell at equal intervals.
In the technical scheme, the length of the connecting shell is equal to that of the middle section, namely the connecting shell can completely cover the middle section in the length direction, so that all parts of the middle section can be radiated by the connecting shell and the radiating piece; meanwhile, the plurality of radiating pieces are uniformly arranged on the connecting shell at equal intervals, a channel is formed between every two adjacent radiating pieces, and the contact area between the radiating pieces and air is increased.
In any of the above technical solutions, preferably, the roasting appliance further includes: the connecting piece is provided with two fixing holes, at least part of the two fixing ends respectively penetrate through the fixing holes, and the connecting piece is connected with the shell.
In the technical scheme, the baking device further comprises a connecting sheet, two fixing holes are formed in the connecting sheet, and when the heating element is fixed, at least part of two fixing ends of the heating element penetrates through the fixing holes, so that the two fixing ends of the heating element can be fixed on the connecting sheet, and the heating element is convenient to fix; in addition, two fixing holes are formed in the same connecting piece to fix the two fixing ends at the same time, so that the stable shape and the difficult deformation of the middle section are guaranteed, and the shape and the position of the radiating fin covered on the middle section are further guaranteed to be stable.
Conceivably, the two fixed ends are L-shaped, and the arrangement directions of the two fixed ends are symmetrical, so that when the fixed ends at least partially penetrate through the fixed holes, the bent parts of the fixed ends can prevent the connecting sheet from moving relatively, and the connecting sheet and the heating element are firmly connected.
In any of the above technical solutions, preferably, the middle section encloses to form a hollow heating area; the roasting appliance further comprises: the impeller is arranged in the heating area, so that the heating element is arranged on the periphery of the impeller.
In this technical scheme, enclose the interlude and close the hollow heating region that forms to set up the impeller in the inside in heating region, make the impeller blow away the air that heating element is heated all around, guarantee that the heat can be blown more fast and hold the bucket play to the edible material that bakes the utensil. Set up the impeller in the centre of heating region, the effect through the impeller holds the direction that the bucket was blown out to the edible material of baking the utensil with heating element's heat, can further guarantee to bake the edible material of utensil and hold the bucket and can receive the heat that comes from heating element and give off.
In any of the above technical solutions, preferably, the heat sink and the connecting shell are of an integrated structure.
In this technical scheme, with the preferred integral type structure of radiating piece and connection shell, because the mechanical properties of integral type structure is good, therefore can improve the joint strength between radiating piece and the connection shell, in addition, can make radiating piece and connection shell an organic whole, batch production to improve the machining efficiency of product, reduce the processing cost of product.
Preferably, the heat dissipation element and the connection shell are processed by stamping a large-area plate, or by casting, or by welding the heat dissipation element and the connection shell into an integral structure.
In any of the above technical solutions, preferably, the heat sink is an aluminum heat sink; and/or the connecting shell is an aluminum connecting shell.
In the technical scheme, the heat dissipation piece and/or the connecting shell can be prepared from aluminum raw materials, so that the heat conduction effect of the heat dissipation piece and/or the connecting shell is improved.
In addition, the heating element can adopt an aluminum pipe, an iron pipe and a stainless steel pipe; the stainless steel pipe with the highest temperature resistance has the highest unit heat born by the pipe wall, and can reach 8W/cm2That is, when the baking device with limited cavity (such as bread maker and baking machine) is used, the maximum power of the heating element cannot meet the best baking performance of the product. Therefore, the heat dissipation surface is increased through structural adjustment. The aluminum metal with better heat conduction effect is embedded on the tube wall of the heating element, and the heat of the heating element is uniformly distributed on the heat radiating piece with larger area. The heating element can bear 10-22W/cm according to the area of the heat sink2The heat load of the radiator and the surface area of the radiator can be correspondingly increased for increasing the radiating effect.
In any of the above technical solutions, preferably, the roasting appliance further includes: the food material containing barrel can be installed in the shell, and is positioned outside the heating element when the food material containing barrel is installed in the shell; the inner wall is arranged in the shell, and the shell and the inner wall enclose to form a heating cavity; heating element and impeller all set up in the inside in chamber that generates heat, and the edible material holds the bucket setting in the outside in chamber that generates heat.
In this technical scheme, the baking device still holds bucket and inner wall including eating the material, the inner wall sets up at heating element and eats and holds between the bucket, and the inner wall encloses with the casing and closes the chamber that generates heat that forms, heating element and impeller are located the intracavity that generates heat, make heating element can heat the gas that generates heat the intracavity portion, and the impeller can outwards blow away the gas that generates heat the intracavity portion and hold bucket department to eating the material, it also can't directly contact with heating element and impeller to eat the material and hold the bucket simultaneously, avoided the user to hold the bucket touch heating element and impeller and cause danger taking edible material like this.
Conceivably, when the baking apparatus is of a side-opening structure, the heating cavity may be located on three other surfaces except the side where the door body is located; or when the side is opened less, the heating cavity can be located on four sides, and the area of the heating cavity on the side with the door opened is smaller than the area of the other three sides of the heater.
In any of the above technical solutions, preferably, the roasting appliance further includes: the air inlets are distributed on the inner wall in a concentrated mode and correspond to the axes of the impellers.
In the technical scheme, the axial center area of the centrifugal impeller is an air inlet area, so that the plurality of air inlets are formed in the wall surface of the inner wall corresponding to the impeller and correspond to the geometric center of the impeller, the air outside 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 improved, 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. Optionally, the impeller is disposed between the inner wall and the housing, or between any of left and right side wall surfaces of the inner wall and the housing.
In any of the above technical solutions, preferably, the air outlets are distributed on the inner wall, and at least one air outlet is present and corresponds to an edge of the impeller.
In this technical scheme, because centrifugal impeller can derive gas circumference, and then set up at least one air outlet in the edge of impeller for part high temperature gas can directly derive to the outside in chamber that generates heat through the air outlet of edge, is favorable to eating the material and holds bucket rapid heating up, and reduces calorific loss.
In any of the above technical solutions, preferably, a wall surface of the inner wall corresponding to the heating element is a first wall surface, and at least one of the plurality of air outlets is disposed on the first wall surface.
In this technical scheme, be first wall with the corresponding wall of heating element in the inner wall, through setting up at least one air outlet on first wall, a large amount of high-temperature gas that are favorable to the heating element heating directly derive to eating the material and hold the bucket through rather than the air outlet on the nearest wall, are favorable to high-temperature gas in time to get into fast and eat the material and hold the heating chamber at bucket place, improve rate of heating.
In any of the above technical solutions, preferably, the other wall surface of the inner wall connected to the first wall surface is a second wall surface, and at least one of the plurality of air outlets is disposed on the second wall surface.
In this embodiment, the other wall connected to the first wall is set as the second wall, and the second wall may be directly connected to the first wall or indirectly connected to the first wall. Through setting up the air outlet on the second wall, make high-temperature gas can follow the air outlet on the second wall and get into inside the heating chamber that eats material and hold bucket place, can reduce the higher and inside difference in temperature of heating chamber that arouses of wall department temperature that heating element corresponds, make the inside edible material of heating chamber, not only can be heated at the regional heat transfer and the heat radiation in heating element place, can also be heated at the regional high-temperature gas that the air outlet flowed in of heating element place, the homogeneity of being heated of eating the material has been improved, the cooking effect is improved.
In any of the above technical solutions, preferably, on the remaining wall surfaces of the inner wall except the wall surface corresponding to the heat generating element, the opening area of each of the at least two outlets is larger as being farther away from the heat generating element.
In this technical scheme, on all the other wall surfaces except the wall surface corresponding with the heating element of inner wall, because the air-out temperature of the air outlet that is more and more close to the heating element is higher, the air-out temperature of the air outlet that is more and more far away from the heating element is lower, and then the air-out area through the air outlet that control air-out temperature is higher and more is less, the air-out area of the air outlet that 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 the heating element of inner wall is higher because of the air-out area is the same, be favorable to guaranteeing the inside temperature evenly distributed of inner wall.
In any of the above technical solutions, preferably, on the remaining wall surfaces of the inner wall except the wall surface corresponding to the heat generating element, a distance between any two adjacent air outlets of the at least two air outlets is smaller as the distance from the heat generating element is larger.
In this technical scheme, on all the other wall surfaces except the wall surface corresponding with heating element of inner 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 through controlling the interval between two adjacent air outlets that the air-out temperature is higher 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, avoid each air outlet to lead to that the inside regional temperature that is close to heating element of inner wall is higher because the interval is the same, be favorable to guaranteeing the inside temperature evenly distributed of inner wall.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a heating element and a connecting sheet of a baking apparatus according to an embodiment of the present invention;
FIG. 2 shows an enlarged partial view of the heating element and connecting tab of the baking appliance provided in FIG. 1 in accordance with one embodiment of the present invention at A;
FIG. 3 shows a schematic structural view of a baking implement provided by an embodiment of the present invention;
FIG. 4 shows a further schematic structural view of a baking implement provided by an embodiment of the present invention;
FIG. 5 shows a further schematic structural view of a baking implement provided by an embodiment of the present invention;
figure 6 shows a further schematic view of a baking apparatus according to an embodiment of the present invention.
Reference numerals:
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
12 shell, 14 heating element, 142 fixed end, 144 middle section, 16 impeller, 18 food material containing barrel, 20 connecting sheet, 22 connecting terminal, 24 inner wall, 26 heating cavity, 28 air inlet, 30 air outlet, 32 heating chamber, 34 heat dissipation piece, 342 upper heat dissipation piece, 344 lower heat dissipation piece, 362 upper groove, 364 lower groove and 38 connecting shell.
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 apparatus according to some embodiments of the present invention is described below with reference to fig. 1 to 6, wherein the direction of the arrow in fig. 4 indicates the wind outlet direction of the wind outlet.
As shown in fig. 1 to 4, the present invention provides a roasting appliance, comprising: a housing 12; the heating element 14 is arranged inside the shell 12, and the heating element 14 comprises two fixed ends 142, an intermediate section 144 between the two fixed ends 142, and two connecting terminals 22 respectively connected with the two fixed ends 142; the heat dissipation elements 34 are provided with fixing openings, the heat dissipation elements 34 are directly or indirectly arranged on the outer wall of the middle section 144 through the fixing openings, and gaps are formed between every two heat dissipation elements 34.
The baking device provided by the invention comprises a shell 12, a heating element 14 and a plurality of heat dissipation members 34, wherein the heating element 14 comprises two fixed ends 142 and a middle section 144 positioned between the two fixed ends 142, the fixed ends 142 are used for well fixing the position of the middle section 144, the middle section 144 is used for heating, so that heat can be transmitted outwards for cooking, a fixed port is formed on the heat dissipation member 34, the heat dissipation member 34 is arranged on the heating element 14 through the fixed port, so that the heat dissipated by the heating element 14 can be transmitted to the outside air through the surface area of the heat dissipation member, and can be transmitted through the heat dissipation member 34, the heat dissipation member 34 is connected with the surface of the middle section 144 of the heating element 14 through the fixed port, so that the heat can be directly transmitted outwards through a heat transmission mode, the heat dissipation area is increased, and meanwhile, specific gaps are reserved between any two of the heat dissipation members 34, prevent like this that a plurality of radiating pieces 34 from laminating too closely and be unfavorable for increasing its area of contact with the air, thermal quick transmission has been guaranteed, consequently, can guarantee the whole heat radiating area increase of baking the utensil, promptly under the same condition of difference in temperature, the heat conduction volume between heating element 14 and the air is faster, heat radiation is more, the temperature rise reaction is rapider, the temperature fluctuation is littleer, the heat transfer efficiency is higher, it is more even to toast the effect, fermentation and toast the effect better when heating the edible material, the epidermis of the bread of culinary art completion is more crisp, inside is more soft, the taste is better.
Conceivably, in the solution that the heat dissipating members 34 are directly or indirectly disposed on the outer wall of the middle section 144 through the fixing openings, when the heat dissipating members 34 are directly disposed on the outer wall of the middle section 144 through the fixing openings, it can be understood that the heat dissipating members 34 are sleeved on the middle section 144 through the fixing openings, and in order to ensure the gap between the heat dissipating members 34, a gap is reserved between every two heat dissipating members 34 when the heat dissipating members are sleeved, and after the heat dissipating members 34 are sleeved, the heat dissipating members 34 are connected with the middle section 144, and the connection can be performed through a connecting layer or solder so as to fill the gap between the heat dissipating members 34 and the middle section 144, and at the same time, it can be understood that when the heat dissipating members 34 are indirectly disposed on the outer wall of the middle section 144 through the fixing openings, there are other components between the outer walls of the heat dissipating members 34 and the middle section 144, is favorable for further improving the heat dissipation effect.
The heating element 14 is preferably a heating tube, but may also be a heating wire, an infrared heating element, etc., and the heating element 14 further includes two connection terminals 22, and the two connection terminals 22 respectively connect the two fixing ends 142 with an external power source, so that the heating element 14 is conducted.
Preferably, the fixing opening is formed in the central region of the heat sink 34, so that when the heat sink is sleeved on the heating element 14 through the fixing opening, on one hand, the fixing opening is a closed opening, and the periphery of the fixing opening is provided with wall surfaces to ensure that the heat sink 34 is not easy to separate from the heating element 14 from the fixing opening; on the other hand, the wall surfaces around the fixing opening can be ensured to be contacted with the heating element 14 so as to enlarge the heat dissipation area. Of course, the fixing opening may also be formed in the edge region of the heat dissipating member 34, so that the fixing opening is an unclosed opening, and thus the heat dissipating member 34 is easily clamped at the outer periphery of the heat generating element 14 through the fixing opening.
As shown in fig. 1 and 2, in one embodiment provided by the present invention, preferably, the roasting appliance further comprises: and a connecting shell 38, wherein the connecting shell 38 is sleeved on the outer wall of at least part of the middle section 144, and the plurality of heat dissipation members 34 are arranged on the outer wall of the connecting shell 38.
In this embodiment, the roasting appliance further includes a connecting shell 38, the connecting shell 38 is disposed between the heat dissipating members 34 and the middle section 144, and the inner wall 24 of the connecting shell 38 is attached to the outer wall of the adjacent middle section 144, so that the connecting shell 38 can wrap at least part of the middle section 144, and the outer wall of the connecting shell 38 is connected to the heat dissipating members 34, so that the connecting shell 38, on one hand, serves to connect the plurality of heat dissipating members 34, so that the plurality of heat dissipating members 34 are first connected to the connecting shell 38, and then the connecting shell 38 is fixed to the surface of the heating element 14, thereby avoiding a complex process of successively sleeving the heat dissipating members 34 and the heating element 14 one by one, the heat dissipating members 34 and the connecting shell 38 can be prepared in advance, and improving the convenience of the roasting appliance in assembly; on the other hand, the connection shell 38 is fastened to the outer wall of at least a part of the middle section 144, so that the contact area between the connection shell 38 and the middle section 144 can be increased, and since the heat transfer rate between the contact surfaces is significantly greater than the heat transfer rate through air, the heat transfer rate can be further increased by wrapping at least a part of the outer wall of the middle section 144 with the connection shell 38.
Preferably, the thickness of the connecting shell 38 is uniform throughout, so that the heat transfer rate is the same throughout the connecting shell 38, ensuring equal heating effect throughout the food material containing tub 18 of the roasting appliance.
Preferably, the connecting shell 38 can completely wrap the surface of the intermediate section 144, or can partially wrap the surface of the intermediate section 144.
In one embodiment provided by the present invention, preferably, the connecting shell 38 comprises a first shell 12 and a second shell 12, the first shell 12 and the second shell 12 are buckled on the surface of the middle section 144; each of the heat dissipating members 34 includes an upper heat dissipating fin 342 and a lower heat dissipating fin 344, an upper groove 362 and a lower groove 364 are respectively formed on a surface of the upper heat dissipating fin 342 opposite to the lower heat dissipating fin 344, the upper groove 362 and the lower groove 364 enclose to form a fixing opening, the upper heat dissipating fin 342 is connected to the first housing 12, and the lower heat dissipating fin 344 is connected to the second housing 12.
In this embodiment, each heat sink 34 includes two parts, i.e., an upper heat sink 342 and a lower heat sink 344, the upper heat sink 342 and the lower heat sink 344 are joined together, and an upper groove 362 and a lower groove 364 are formed on the surface where the upper heat sink 342 and the lower heat sink 344 are joined together, so that the upper groove 362 and the lower groove 364 enclose a fixing opening, and the upper groove 362 of the upper heat sink 342 is connected to the first housing 12, and the lower groove 364 of the lower heat sink 344 is connected to the second housing 12, so that when the heating element 14 is mounted on the connecting housing 38, the first housing 12 and the second housing 12 are respectively fastened to both sides of the middle section 144, the middle section 144 is simultaneously limited by the first housing 12 and the second housing 12 on both sides, and after the middle section 144 is fixed, the first housing 12 and the second housing 12 are detachably connected, or the upper heat sink 342 and the lower heat sink 344 are detachably connected, the assembling process is convenient and simple, and the later-stage disassembly and maintenance are easy.
In one embodiment of the present invention, the heating element 14 is preferably a heating tube, and the inner wall 24 of the connecting shell 38 is preferably an arc-shaped structure.
In this embodiment, the heating element 14 is configured as a heating tube, so that when the space of the heating cavity 26 in the housing 12 is sufficient, the number of heating tubes can be increased or the effective heating area of the heating tubes can be increased to increase the heating efficiency; and the inner wall 24 of the connecting shell 38 is set to be an arc-shaped structure, so that the connecting shell 38 and the heating element 14 can be completely attached to each other, and the heat conduction effect is ensured to be better.
In one embodiment provided by the present invention, the heat sink 34 is preferably a ring-shaped structure.
In this embodiment, when the heating element 14 is a heating tube, the heat dissipation member 34 is correspondingly configured to be annular, and the center of the heat dissipation member 34 is concentric with the center of the cross section of the adjacent heating element 14, so that the distances from each point of the heat dissipation member 34 at the same radius to the heating tube are equal, and the heat transfer speed on the heat dissipation member 34 is ensured to be uniform.
In one embodiment of the present invention, it is preferable that the length of the connection housing 38 is equal to the length of the intermediate section 144, and the plurality of heat dissipation members 34 are uniformly disposed on the connection housing 38 at equal intervals.
In this embodiment, the length of the connecting shell 38 is equal to the length of the intermediate section 144, that is, the connecting shell 38 may completely cover the intermediate section 144 in the length direction, so that all over the intermediate section 144 can dissipate heat through the connecting shell 38 and the heat sink 34; while the plurality of heat dissipation members 34 are equally spaced on the connection case 38, and so that a passage is formed between each two adjacent heat dissipation members 34, increasing the contact area between the heat dissipation members 34 and the air.
In one embodiment provided by the present invention, preferably, the roasting appliance further comprises: the connecting sheet 20 is provided with two fixing holes, the two fixing ends 142 respectively penetrate through the fixing holes at least partially, and the connecting sheet 20 is connected with the casing 12.
In this embodiment, the baking apparatus further includes a connecting plate 20, and two fixing holes are opened on the connecting plate 20, when the heating element 14 is fixed, the two fixing ends 142 of the heating element 14 at least partially penetrate through the fixing holes, so that the two fixing ends 142 of the heating element 14 can be fixed on the connecting plate 20, which facilitates the fixing of the heating element 14; in addition, two fixing holes are formed in the same connecting sheet 20 to fix the two fixing ends 142 at the same time, so that the stable shape formed by the middle section 144 is ensured, the deformation is not easy to occur, and the stable shape and position of the radiating fins covered on the middle section are further ensured.
Conceivably, the two fixing ends 142 are L-shaped, and the arrangement directions of the two fixing ends 142 are symmetrical, so that when the fixing ends 142 at least partially pass through the fixing holes, the bent parts of the fixing ends 142 prevent the connecting sheet 20 from moving relatively, and secure connection between the connecting sheet 20 and the heating element 14 is ensured.
As shown in FIGS. 5 and 6, in one embodiment of the present invention, the intermediate section 144 preferably encloses a hollow heating region; the roasting appliance further comprises: an impeller 16, the impeller 16 being disposed inside the heating region such that the heating element 14 surrounds the periphery of the impeller 16.
In this embodiment, the middle section 144 is enclosed to form a hollow heating area, and the impeller 16 is disposed inside the heating area, so that the impeller 16 can blow away the air heated around the heating element 14, and it is ensured that the heat can be blown out to the food material containing barrel 18 of the baking appliance more quickly. The impeller 16 is arranged in the middle of the heating area, and the heat of the heating element 14 is blown out towards the direction of the food material containing barrel 18 of the baking appliance through the action of the impeller 16, so that the food material containing barrel 18 of the baking appliance can be further ensured to receive the heat emitted from the heating element 14.
In one embodiment provided by the present invention, the heat sink 34 is preferably of one-piece construction with the connection housing 38.
In this embodiment, the heat sink 34 and the connecting shell 38 are preferably of an integral structure, because the integral structure has good mechanical properties, the connecting strength between the heat sink 34 and the connecting shell 38 can be improved, and in addition, the heat sink 34 and the connecting shell 38 can be integrally manufactured and mass-produced, so that the processing efficiency of the product is improved, and the processing cost of the product is reduced.
Preferably, the heat sink 34 and the connecting shell 38 are formed by stamping a large-area plate, or by casting, or by welding the heat sink 34 and the connecting shell 38 into an integral structure.
In one embodiment provided by the present invention, the heat sink 34 is preferably an aluminum heat sink; and/or the coupling housing 38 is an aluminum coupling housing.
In this embodiment, the heat sink 34 and/or the connection shell 38 may be made of aluminum, which improves the heat conduction effect of the heat sink 34 and/or the connection shell 38.
In addition, the heating element 14 may employ an aluminum pipe, an iron pipe, and a stainless steel pipe; the stainless steel pipe with the highest temperature resistance has the highest unit heat born by the pipe wall, and can reach 8W/cm2That is, when the baking device with limited cavity (such as bread maker and baking machine) is used, the maximum power of the heating element 14 cannot satisfy the best baking performance of the product. Therefore, the heat dissipation surface is increased through structural adjustment. The aluminum metal with better heat conduction effect is embedded on the tube wall of the heating element 14, and the heat of the heating element 14 is uniformly distributed on the heat dissipation member 34 with larger area. The heating element 14 can withstand 10 to 22W/cm according to the area of the heat sink 342The surface area of the heat sink 34 may be correspondingly increased to increase the heat dissipation effect.
In one embodiment provided by the present invention, preferably, the roasting appliance further comprises: a food material containing tub 18 mountable within the housing 12, the food material containing tub 18 being located outside the heating element 14 when the food material containing tub 18 is mounted within the housing 12; the inner wall 24 is arranged inside the shell 12, and 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 disposed inside the heating chamber 26, and the food material containing barrel 18 is disposed outside the heating chamber 26.
In this embodiment, the baking appliance further includes a food material containing barrel 18 and an inner wall 24, the inner wall 24 is disposed between the heating element 14 and the food material containing barrel 18, the inner wall 24 and the housing 12 are enclosed to form a heating cavity 26, the heating element 14 and the impeller 16 are located in the heating cavity 26, so that the heating element 14 can heat the gas inside the heating cavity 26, the impeller 16 can blow the heated gas inside the heating cavity 26 outwards to the food material containing barrel 18, and meanwhile, the food material containing barrel 18 cannot be directly contacted with the heating element 14 and the impeller 16, thereby avoiding danger caused by the user when the user takes the food material containing barrel 18 to touch the heating element 14 and the impeller 16.
Conceivably, when the baking apparatus is of a side-opening structure, the heat-generating chamber 26 may be located on three sides other than the side where the door body is located; or when the side opening is smaller, the heating cavity 26 can be located on four sides, and the area of the heating cavity 26 on the side with the opening is smaller than the area of the heaters on other three sides.
In one embodiment provided by the present invention, preferably, the roasting appliance further comprises: a plurality of air inlets 28, a plurality of air inlets 28 are intensively distributed on the inner wall 24, and a plurality of air inlets 28 correspond to the axial center of the impeller 16.
In this embodiment, the axial region of the centrifugal impeller is an air inlet region, so that the plurality of air inlets 28 are disposed on the wall surface of the inner wall 24 corresponding to the impeller 16 and correspond to the geometric center of the impeller 16, which is beneficial for the air outside the heat generating cavity 26 to rapidly flow into the heat generating cavity 26 under the action of the impeller 16, thereby increasing the circulation speed of the hot air inside the heat generating cavity 26 and shortening the cooking time. Particularly, when the impeller 16 is located at one side of the heating element 14, the gas which is timely led out of the heating chamber 26 can be rapidly heated by the heating element 14, thereby improving the heating efficiency of the whole baking apparatus. Alternatively, the impeller 16 is disposed between the inner wall 24 and the housing 12, or between either of the left and right side wall surfaces of the inner wall 24 and the housing 12.
In one embodiment of the present invention, preferably, a plurality of air outlets 30 are provided, the plurality of air outlets 30 are distributed on the inner wall 24, and at least one air outlet 30 is provided corresponding to an edge of the impeller 16.
In this embodiment, because centrifugal impeller can derive gas circumference, and then set up at least one air outlet 30 in the edge of impeller 16 for part high-temperature gas can directly derive to the outside in chamber 26 that generates heat through the air outlet 30 of edge, is favorable to eating the material and holds bucket 18 rapid heating up, and reduces calorific loss.
In one embodiment of the present invention, preferably, a wall surface of the inner wall 24 corresponding to the heating element 14 is a first wall surface, and at least one of the plurality of air outlets 30 is disposed on the first wall surface.
In this embodiment, the wall surface of the inner wall 24 corresponding to the heating element 14 is a first wall surface, and by disposing the at least one air outlet 30 on the first wall surface, a large amount of high-temperature gas beneficial to heating by the heating element 14 is directly led out to the food material containing barrel 18 through the air outlet 30 on the wall surface closest to the wall surface, so that the high-temperature gas is beneficial to timely and rapidly entering the heating chamber 32 where the food material containing barrel 18 is located, and the heating rate is improved.
In one embodiment of the present invention, preferably, the other wall surface of the inner wall 24 connected to the first wall surface is a second wall surface, and at least one of the plurality of air outlets 30 is disposed on the second wall surface.
In this embodiment, the other wall surface connected to the first wall surface is set as the second wall surface, and here, the second wall surface may be directly connected to the first wall surface or indirectly connected to the first wall surface. Through setting up air outlet 30 on the second wall, make high-temperature gas can get into the heating chamber 32 that edible material held the bucket 18 place from air outlet 30 on the second wall inside, can reduce the inside difference in temperature of heating chamber 32 that heating element 14 corresponds wall department temperature is higher and arouse, make the inside edible material of heating chamber 32, not only can be heated at the regional heat transfer and the heat radiation in heating element 14 place, can also be heated at the regional high-temperature gas that air outlet 30 flowed in of heating element 14 place, the homogeneity of being heated of edible material has been improved, the effect of cooking is improved.
In one embodiment of the present invention, it is preferable that the opening area of each of the at least two outlets 30 is larger as being farther from the heat generating element 14 on the remaining wall surface of the inner wall 24 except the wall surface corresponding to the heat generating element 14.
In this embodiment, on the remaining wall surfaces of the inner wall 24 except the wall surface corresponding to the heating element 14, since the outlet air temperature of the outlet 30 closer to the heating element 14 is higher, and the outlet air temperature of the outlet 30 farther from the heating element 14 is lower, the outlet air area of the outlet 30 with the higher outlet air temperature is smaller by controlling the outlet air area of the outlet 30 with the higher outlet air temperature, and the outlet air area of the outlet 30 with the lower outlet air temperature is larger, the outlet air effect of each outlet 30 can be integrated, the temperature of the region inside the inner wall 24 close to the heating element 14 due to the same outlet air area of each outlet 30 is prevented from being higher, and the uniform distribution of the temperature inside the inner wall 24 is favorably ensured.
In one embodiment of the present invention, preferably, on the remaining wall surfaces of the inner wall 24 except the wall surface corresponding to the heat generating element 14, the distance between any two adjacent air outlets 30 of the at least two air outlets 30 is smaller as the distance from the heat generating element 14 is larger.
In this embodiment, on the remaining wall surfaces of the inner wall 24 except the wall surface corresponding to the heating element 14, since the outlet air temperature of the outlet 30 closer to the heating element 14 is higher, and the outlet air temperature of the outlet 30 farther from the heating element 14 is lower, further by controlling the distance between the two adjacent outlets 30 with higher outlet air temperature, the distance between the two adjacent outlets 30 with lower outlet air temperature is smaller, the outlet air effect of each outlet 30 can be integrated, it is avoided that the temperature of the region inside the inner wall 24 close to the heating element 14 is higher due to the same distance between the outlets 30, and it is beneficial to ensure that the temperature inside the inner wall 24 is uniformly distributed.
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.
Claims (9)
1. A roasting appliance, characterized in that it comprises:
a housing;
the heating element is arranged in the shell and comprises two fixed ends, a middle section positioned between the two fixed ends and two connecting terminals respectively connected with the two fixed ends, and the middle section encloses a hollow heating area;
an impeller disposed inside the heating region such that the heating element is surrounded at an outer periphery of the impeller;
the heat dissipation pieces are provided with fixing ports, the heat dissipation pieces are directly or indirectly arranged on the outer wall of the middle section through the fixing ports, and gaps are formed between every two heat dissipation pieces;
the inner wall is arranged inside the shell, and the shell and the inner wall enclose to form a heating cavity;
the air inlets are distributed on the inner wall in a concentrated mode and correspond to the axes of the impellers;
the air outlets are distributed on the inner wall, and at least one air outlet is arranged to correspond to the edge of the impeller.
2. The roasting apparatus of claim 1, further comprising:
the connecting shell is sleeved on the outer wall of at least part of the middle section;
the plurality of heat dissipation members are disposed on an outer wall of the connection case.
3. Baking apparatus according to claim 2,
the connecting shell comprises a first shell and a second shell, and the first shell and the second shell are buckled on the surface of the middle section;
each radiating piece comprises an upper radiating piece and a lower radiating piece, an upper groove and a lower groove are respectively formed in the surface, opposite to the lower radiating piece, of the upper radiating piece, the upper groove and the lower groove are enclosed to form the fixing opening, the upper radiating piece is connected with the first shell, and the lower radiating piece is connected with the second shell.
4. Baking apparatus according to claim 2,
the heating element is a heating tube, and the inner wall of the connecting shell is of an arc-shaped structure; and/or
The heat dissipation member is of an annular structure.
5. Baking apparatus according to claim 2,
the length of connecting the shell with the length of interlude is equal, and is a plurality of the heat dissipation piece is evenly set up at the equidistance on the connecting the shell.
6. Baking apparatus according to any of claims 1 to 5, further comprising:
the connecting piece is provided with two fixing holes, at least part of the two fixing ends respectively penetrate through the fixing holes, and the connecting piece is connected with the shell.
7. Baking appliance according to any of the claims 2 to 5,
the heat dissipation piece and the connecting shell are of an integrated structure.
8. Baking appliance according to any of the claims 2 to 5,
the heat dissipation piece is made of aluminum; and/or
The connecting shell is an aluminum connecting shell.
9. The roasting apparatus of claim 1, further comprising:
the food material containing barrel can be installed in the shell, and is positioned outside the heating element when the food material containing barrel is installed in the shell;
the heating element and the impeller are arranged inside the heating cavity, and the food material containing barrel is arranged outside the heating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689766.3A CN110652225B (en) | 2018-06-28 | 2018-06-28 | Baking appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689766.3A CN110652225B (en) | 2018-06-28 | 2018-06-28 | Baking appliance |
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| CN110652225A CN110652225A (en) | 2020-01-07 |
| CN110652225B true CN110652225B (en) | 2021-09-24 |
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| CN201810689766.3A Active CN110652225B (en) | 2018-06-28 | 2018-06-28 | Baking appliance |
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| CN110652225A (en) | 2020-01-07 |
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