Baking device

Abstract

A baking apparatus defines an interior space suitable for containing a plurality of objects to be baked, and includes a blow-off unit suitable for providing a flow of hot air. The baking apparatus also defines a first passage and a second passage that are in communication with the interior space and the outside, and includes a grate cover unit between the interior space and the second passage, a tube unit inserted in the grate cover unit and in communication with the interior space and the first passage, and a switching unit. During discharge, the switching unit allows the first passage to be in communication with the outside and the second passage to be shielded, so that the baked objects can be blown out of the first passage through the tube unit and not blown out through the second passage. During baking, the switching unit allows the second passage to be in communication with the outside and the first passage to be shielded, so that the separated objects separated from the objects to be baked can be blown out of the second passage through the grate cover unit and not blown out through the first passage.

Description

Technical Field

[0001] This invention relates to a food processing appliance, and more particularly to a roasting apparatus suitable for roasting coffee beans. Background Technology

[0002] See Figure 1 Japanese Patent Application Publication No. 4-23976 (H04-23976) discloses a conventional roasting apparatus 1. This roasting apparatus 1 is suitable for roasting materials such as coffee beans and separating the roasted material from flaked silver foil or similar residues. The roasting apparatus 1 includes a housing unit 11, a blowing unit 12 that blows hot air into the housing unit 11, and a collecting unit 13 connected to the housing unit 11. The housing unit 11 includes an inner housing 111 and an outer housing 112 that are nested together. The inner housing 111 allows hot air to be blown in. The outer housing 112 is connected to the collecting unit 13.

[0003] In this existing baking apparatus 1, when baking the object to be baked, the object to be baked is mainly blown and circulated between the inner cover 111 and the outer cover 112, while the lighter separated material is blown upward along the outer cover 112 to the collection unit 13 for collection. However, the disadvantage of this existing baking apparatus 1 is that the channel through which the separated material escapes also allows the object to be baked or the dried material to escape. Therefore, sometimes the object to be baked or the dried material will be mixed with the separated material and escape, which needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a baking apparatus that can solve at least one problem of the prior art.

[0005] The present invention provides a baking apparatus that defines an internal space suitable for containing an object to be baked, and includes a blowing unit suitable for providing airflow to bake the object into a baked product. The baking apparatus further defines a first channel and a second channel that connect the internal space to the outside world, and includes a grid cover unit located between the internal space and the second channel, a tube unit inserted into the grid cover unit and connecting the internal space and the first channel, and a switching unit. During the discharge of the baked product, the switching unit allows the first channel to connect to the outside world and blocks the second channel, so that the baked product can be blown out through the tube unit from the first channel without being blown out through the second channel. During the baking process, the switching unit allows the second channel to connect to the outside world and blocks the first channel, so that the separated material from the object to be baked can be blown out through the grid cover unit from the second channel without being blown out through the first channel.

[0006] The baking apparatus of the present invention further includes a base unit for mounting the drying unit, a cover unit mounted on the base unit, and a cover unit covering the cover unit and the grid cover unit. The cover unit cooperates with the base unit to define the internal space located below the cover unit and below the grid cover unit. The grid cover unit is annular, covering the upper end of the internal space and defining an annular hole. The second channel communicates with the internal space through the grid cover unit. The tube unit defines the tube space and extends downward from the cover unit into the annular hole of the grid cover unit, extending into the bottom of the internal space, thereby connecting the tube space with the internal space and allowing the baked material to enter the tube space. The cover unit defines the first channel communicating with the internal space through the tube space.

[0007] The baking apparatus of the present invention includes a cover unit comprising an inner cover and an outer cover disposed on the base unit and nested together. The inner cover cooperates with the base unit to define the internal space and cooperates with the outer cover and the base unit to define a cover interlayer space between the inner cover and the outer cover. The cover unit includes an inner cover portion, an outer cover portion located outside the inner cover portion, and a cover interlayer space located between the inner cover portion and the outer cover portion. The inner cover portion defines a first channel and a cover bottom space located below the first channel and above the internal space and the grid cover unit. The tube unit passes through the cover bottom space downward from the first channel into the internal space. The cover interlayer space is connected to the cover bottom space through the cover interlayer space and together with the cover interlayer space and the cover bottom space constitutes the second channel.

[0008] In the baking apparatus of the present invention, the switching unit is disposed between the inner cover and the outer cover and is rotatable relative to the inner cover and the outer cover, thereby selectively shielding one of the first channel and the interlayer space of the cover.

[0009] The baking apparatus of the present invention includes a first open end in the first channel opposite to the inner space of the tube unit, and a second open end opposite to the inner space of the cover unit. The second open end and the first open end are respectively located on opposite sides of the cover unit in the radial direction.

[0010] The baking apparatus of the present invention includes a switching unit comprising an annular wall located between the inner cover and the outer cover, and a top wall connecting the top of the annular wall. The annular wall forms a first, laterally penetrating opening, which is radially spaced from the top wall. The top wall and the annular wall define a second opening that is radially on the same side as the first opening and vertically penetrating it. The switching unit can switch between a first position where the baked product can be discharged and a second position where the product to be baked can be baked. In the first position, the first opening is located outside the first open end and laterally connects to the first open end, and the top wall is located above the second open end and shields the second open end. In the second position, the second opening is located above the second open end and vertically connects to the second open end, and the annular wall is located outside the first open end and shields the first open end.

[0011] The baking apparatus of the present invention further includes a side cover portion extending downward from the outer cover portion in the cover unit, and the baking apparatus further includes a drive unit disposed in the side cover portion, and a gear unit connected between the drive unit and the switching unit, wherein the drive unit can drive the switching unit to switch between the first position and the second position through the gear unit.

[0012] The baking apparatus of the present invention further includes a side cover portion extending downward from the outer cover portion of the cover unit. The side cover portion defines a side cover space located outside the outer cover body. The top of the side cover space can communicate with the first open end, and the baked material blown out from the first channel can enter from the top of the side cover space and fall out from the bottom.

[0013] The baking apparatus of the present invention further includes a base unit for mounting the blowing unit, a cover unit mounted on the base unit, and a cover unit covering the cover unit and the grid cover unit. The cover unit cooperates with the base unit to define the internal space and defines a cover interlayer space located outside the internal space. The cover interlayer space includes a first region and a second region. The cover unit defines a top cover space and a bottom cover space space that are spaced apart vertically. The top cover space cooperates with the first region to form the first passage. The bottom cover space cooperates with the second area to form the second channel. The tube unit extends downward from the cover unit and is inserted into the grid cover unit, extending into the bottom of the internal space. The tube unit defines an internal space that connects the internal space and the top cover space and allows the dried material to enter. The grid cover unit is annular and defines annular holes for the tube unit to be inserted. It allows the separated material to enter the bottom cover space from the internal space, but does not allow the material to be baked or the dried material to enter the bottom cover space from the internal space.

[0014] The baking apparatus of the present invention includes a cover unit comprising an inner cover and an outer cover assembly disposed on the base unit and fitted together. The inner cover and the base unit cooperate to define the internal space. The outer cover assembly includes a first outer cover fitted onto the inner cover at intervals, and a second outer cover located between the inner cover and the first outer cover. The first outer cover, the inner cover, and the base unit cooperate to define the cover interlayer space. The second outer cover divides the cover interlayer space into a first region and a second region that extend vertically and penetrate through each other. A cover unit is disposed at the top of the inner cover and covers the top of the inner space. The cover unit includes a top cover disposed above the first outer cover and a bottom cover disposed below the top cover. The top cover defines a top cover space that connects the top of the tube space and the top of the first region. The bottom cover defines a bottom cover space that connects the top of the inner space and the top of the second region. The tube unit is inserted into the bottom cover and the cover unit and extends from the bottom cover into the bottom of the inner space so that the tube space connects to the inner space.

[0015] The baking apparatus of the present invention includes a second outer cover comprising a main cover portion, two inclined cover portions located outside the main cover portion and spaced apart from each other and extending downward from the bottom cover member, and two straight cover portions extending downward from the inclined cover portions respectively. The inclined cover portions and the straight cover portions respectively abut against the inner surfaces of the first outer cover and the switching unit, thereby separating the cover interlayer space into a first region and a second region. The inclined cover portions and the straight cover portions can cooperate to guide the baked material blown out from the tube space and entering the first region through the top cover space in the first region, and to confine the separated material blown out from the internal space and entering the second region through the bottom cover space to the second region.

[0016] The baking apparatus of the present invention includes a switching unit comprising a C-shaped cross-section seat wall disposed below the first outer cover and passing through the bottom outer side of the space between the base unit and the cover, defining a laterally penetrating seat opening. The switching unit is rotatable about its own center and can switch between a first position where the baked product can be discharged and a second position where the product to be baked can be baked. In the first position, the seat opening connects to the bottom of the first region, and the seat wall covers the bottom of the second region. In the second position, the seat opening connects to the bottom of the second region, and the seat wall covers the bottom of the first region.

[0017] The beneficial effects of the present invention are as follows: the grid cover unit is disposed between the internal space and the second channel, which can prevent the product to be baked or the product after baking from running into the second channel for the separation product to leave, and the switching unit only allows one of the first channel and the second channel to function at a time. Therefore, the present invention can ensure that the product to be baked or the product after baking is not confused with the separation product. Attached Figure Description

[0018] Figure 1 It is an incomplete cross-sectional view illustrating an existing baking apparatus;

[0019] Figure 2 This is an incompletely exploded three-dimensional diagram illustrating a first embodiment of the baking apparatus of the present invention, wherein the switching unit of the first embodiment is in a first position;

[0020] Figure 3 This is a cross-sectional view illustrating the first embodiment, with the switching unit located in the first position;

[0021] Figure 4 This is an incompletely exploded 3D diagram illustrating the first embodiment;

[0022] Figure 5This is a partially cut-out, incomplete perspective view illustrating the cover unit of the first embodiment;

[0023] Figure 6 This is a 3D view illustrating that the switching unit in the first embodiment is in the second position;

[0024] Figure 7 This is a cross-sectional view illustrating the first embodiment, with the switching unit located in the second position;

[0025] Figure 8 This is a perspective view illustrating a second embodiment of the baking apparatus of the present invention;

[0026] Figure 9 It is a cross-sectional view illustrating that the switching unit of the second embodiment is in the second position;

[0027] Figure 10 This is an exploded three-dimensional diagram illustrating the second embodiment;

[0028] Figure 11 It is a cross-sectional view illustrating the relative relationship between the second outer casing of the second embodiment and other components; and

[0029] Figure 12 This is a cross-sectional view illustrating that the switching unit of the second embodiment is in the first position. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and various embodiments. It should be noted that similar elements are represented by the same numbers in the following description.

[0031] See Figures 2 to 4 The first embodiment of the roasting apparatus of the present invention is suitable for roasting an object to be roasted into a baked product. In this first embodiment, the object to be roasted is coffee beans, but it can also be other objects that require drying or roasting, such as tea leaves, spices, or popcorn. In this embodiment, since the object to be roasted is coffee beans, during the roasting process, a separate product, namely silverskin, will be generated that separates from the coffee bean body.

[0032] This first embodiment includes a base unit 2 located at the bottom, a drying unit 3 disposed in the base unit 2, a cover unit 4 mounted on the base unit 2 and including an inner cover 41 and an outer cover 42 that are nested together, a grid cover unit 5 mounted on the top of the inner cover 41, a cover unit 6 mounted on the top of the inner cover 41 and the outer cover 42 and covering the grid cover unit 5, a pipe unit 7 inserted into the cover unit 6 and extending downward into the inner cover 41 and defining an internal space 71, a switching unit 8 assembled in the cover unit 6, a drive unit 91 mounted in the cover unit 6 and located outside the outer cover 42, and a gear unit 92 located on the top of the cover unit 6 and assembled between the switching unit 8 and the drive unit 91.

[0033] See Figures 3 to 5 The base unit 2 includes a first base 21 with an outer ring shape and an inner bowl shape, a second base 22 with an outer ring shape installed on the top of the first base 21, a duct seat 23 installed on the inner top of the bowl shape of the first base 21 and located inside the second base 22, a connecting seat 24 with an outer ring shape installed on the top of the duct seat 23 for supporting the inner cover 41, and an air outlet seat 25 installed on the top of the duct seat 23 and located inside the connecting seat 24.

[0034] The air duct seat 23 is used to guide the hot air generated by the blowing and drying unit 3. The lower half is in the shape of an inverted bowl, and the upper half is generally in the shape of a ring and protrudes upward from the second base 22 for the adapter seat 24 and the air outlet seat 25 to be installed. The air outlet seat 25 is located at intervals below the pipe unit 7, protrudes slightly downward, and has a radially extending rib structure.

[0035] The blowing and drying unit 3 is suitable for providing heated airflow (hot air) to bake the object to be baked, or to blow out the baked object and the separated object. The blowing and drying unit 3 is integrally installed inside the air duct seat 23 and the first base 21, and includes a fan component 31 that can generate airflow and blow the airflow out, and a motor 32 assembled with the fan component 31 and used to drive the fan component 31 to rotate (see...). Figure 3 The fan 31 includes a heat shield 33 that covers the motor 32, and a heating element 34 made of mica that covers the heat shield 33. The heating element 34 can heat the airflow provided by the fan 31 to turn it into hot air.

[0036] The inner cover 41 of the cover unit 4 is mounted on the adapter 24 of the base unit 2, and cooperates with the adapter 24 and the air vent 25 of the base unit 2 to define an internal space 411 located below the grid cover unit 5 and the cover unit 6, which is suitable for accommodating the item to be baked and the item after baking.

[0037] The outer cover 42, together with the inner cover 41 and the second base 22 of the base unit 2, defines a cover interlayer space 43 located between the outer cover 42 and the inner cover 41.

[0038] The cover unit 5 includes an annular cover 51 that covers the top of the inner cover 41 and conceals the top of the internal space 411. The cover 51 defines a centrally located annular hole 511 for insertion of the tubular unit 7 (see...). Figure 4 In this first embodiment, the cover member 51 has a grid structure and defines a plurality of grid holes 512. The grid holes 512 are elongated, thus allowing the separation material generated during the baking process of the material to be baked to pass through, but not allowing the material to be baked or the baked product to pass through. In other embodiments of the invention, depending on the type of material to be baked, the cover member 51 may also have a mesh structure or a grid structure, defining grid holes 512 in the form of lattice or mesh holes for allowing the separation material to pass through but not allowing the material to be baked or the baked product to pass through.

[0039] The cover unit 6 includes a cover member 61. The cover member 61 includes an inner cover portion 62, a C-shaped outer cover portion 63 located outside the inner cover portion 62, a circular block portion 64 formed at the top of the inner cover portion 62 and shaped like a round block, a side cover portion 65 extending downward from one side of the outer cover portion 63, and a plurality of first connecting cover portions 661 and a plurality of second connecting cover portions 662 connecting the inner cover portion 62 and the outer cover portion 63 (due to viewing angle, only visible in...). Figure 5 (One of them is shown in the image) and a third connecting cover 663.

[0040] The inner cover 62 defines a laterally extending top cover space 621, a bottom cover space 622 located below the top cover space 621, and a vertically penetrating insertion hole 623 for the insertion of the pipe unit 7.

[0041] The top cover space 621 gradually increases in size in the radial direction from the center outwards, and has a first open end 624 opposite to the pipe unit 7 and the insertion hole 623 and facing the side cover portion 65.

[0042] The bottom cover space 622 is located above the internal space 411 and the cover unit 5, and connects to the internal space 411 through the grille hole 512 of the cover unit 5. It also connects to the top of one half of the cover interlayer space 43. Specifically, the bottom cover space 622 is as follows: Figure 3 The top of the right half of the interlayer space 43 of the cover is shown to be connected.

[0043] The insertion hole 623 is located in the center and directly below the circular block portion 64.

[0044] The outer cover portion 63 and the inner cover portion 62 cooperate to define a cover interlayer space 631 with a cross-sectional shape generally semi-circular and located outside the cover bottom space 622. The lower end of the cover interlayer space 631 connects to the top of the other half of the cover interlayer space 43. Specifically, the cover interlayer space 631 is as follows: Figure 3 The top of the left half of the interlayer space 43 of the cover shown in the figure is connected to the top of the layer space 43.

[0045] The cover interlayer space 631 has a second open end 632 located at the top, opposite to the cover interlayer space 43 in the vertical direction, communicating with the outside and generally in the shape of a semi-circular ring. The second open end 632 and the first open end 624 are located on opposite sides in the radial direction of the cover unit 6.

[0046] The side cover portion 65 defines a side cover space 651 that extends vertically and is located outside the outer cover body 42. The top of the side cover space 651 is connected to the outside and to the first open end 624 of the top cover space 621, and the bottom is open to the side.

[0047] The first connecting cover 661 has its length direction aligned with the axial direction and its width direction aligned with the radial direction. It connects to the inner cover 62 on its inner side and is spaced apart from the outer cover 63 on its outer side. The second connecting cover 662 extends laterally and connects the inner cover 62 and the outer cover 63. The third connecting cover 663 is perpendicularly spaced at 90 degrees from the first connecting cover 661 and connects the inner cover 62 and the outer cover 63.

[0048] The top end of the pipe unit 7 is inserted into the insertion hole 623 and assembled into the inner cover 62, and extends downward through the bottom cover space 622 and is inserted into the annular hole 511 of the grid cover unit 5, and extends into the bottom of the internal space 411, so that the top end of the pipe space 71 is connected to the top cover space 621, and the bottom end is connected to the internal space 411.

[0049] The switching unit 8 includes an annular wall 81 located in the cover interlayer space 631 between the inner cover 62 and the outer cover 63, and a top wall 82 connecting the top of the annular wall 81.

[0050] The annular wall 81 has a first opening 811 that is laterally through and wider at the top than at the bottom. The first opening 811 connects the first open end 624 of the top cover space 621 with the side cover space 651 of the side cover portion 65.

[0051] The top wall 82 is radially spaced from the first opening 811 and includes a first wall portion 821 that is radially opposite to the first opening 811, and a second wall portion 822 that protrudes from the first wall portion 821 toward the first opening 811 and is spaced from the annular wall 81.

[0052] Both the first wall portion 821 and the second wall portion 822 are semi-circular, defining a second opening 823 that is also semi-circular, located on the same radial direction as the first opening 811, and extending vertically through it, and a centrally located, circular assembly hole 824. The assembly hole 824 allows the circular block portion 64 of the cover unit 6 to be inserted, and allows the switching unit 8 to be fitted onto the cover unit 6 and rotate relative to the inner cover portion 62 and the outer cover portion 63 of the cover unit 6.

[0053] The drive unit 91 is installed in the side cover portion 65 and located within the side cover space 651. In this first embodiment, the drive unit 91 is a stepper motor.

[0054] This first embodiment defines a first channel P1 for blowing out the dried material and a second channel P2 for blowing out the separated material.

[0055] The first channel P1 is the top cover space 621 defined by the inner cover 62. Therefore, the first channel P1 has the first open end 624 of the top cover space 621 and is connected to the internal space 411 through the tube space 71.

[0056] The second channel P2 is composed of the cover space 622, the cover interlayer space 43, and the cover interlayer space 631. Therefore, the second channel P2 has the second open end 632 of the cover interlayer space 631.

[0057] See Figure 2 , 3 6, 7, the gear unit 92 can be driven by the drive unit 91, driving the switching unit 8 in a position such as... Figure 2 ,3 The first position shown is related to a... Figure 6 , 7 The second positional transformation is shown.

[0058] At the first position, the first opening 811 of the switching unit 8 is located outside the first open end 624 and laterally connects the first open end 624 and the side cover space 651, allowing the first channel P1 to connect to the outside through the side cover space 651. The first wall portion 821 of the top wall 82 of the switching unit 8 is located above the second open end 632 and shields the second open end 632, making it difficult for the airflow provided by the blowing and drying unit 3 to be blown out from the second channel P2.

[0059] In the second position, the second opening 823 of the switching unit 8 is located above the second open end 632 and connects the second open end 632 with the outside world, allowing the second channel P2 to connect with the outside world. The ring wall 81 of the switching unit 8 is located outside the first open end 624 and blocks the first open end 624, making it difficult for the airflow provided by the blowing and drying unit 3 to be blown out from the first channel P2.

[0060] In this first embodiment, the cover unit 6 and the grid cover unit 5 are opened first, the material to be baked is poured into the internal space 411, and the switching unit 8 is positioned as follows: Figure 6 , 7 After reaching the second position shown, the blowing and drying unit 3 is then started.

[0061] At this time, the object to be baked is blown to a certain height by hot air in the internal space 411, then falls again and is blown up again, and so on repeatedly until it is baked to a sufficient degree and becomes a baked product. During the baking process, the silver skin will detach and become a separate object. At this time, since the first channel P1 is blocked, the airflow cannot enter, and the separate object can only enter the second channel P2 through the grid cover 51 of the grid cover unit 5. The object to be baked that is half-baked or the baked product that is fully baked cannot enter the second channel P2 through the grid hole 512 of the grid cover 51. After passing through the grid cover unit 5, the separate object specifically passes through the bottom cover space 622, the cover interlayer space 43, and the cover interlayer space 631, and is finally discharged to the outside through the second open end 632 of the cover interlayer space 631. Among them, since the volume of the cover interlayer space 43 is large, it can produce a dust collection effect similar to the dust collection cup of a vacuum cleaner, preventing the separate object from flying out directly.

[0062] When the baking process is complete and the dried material needs to be blown out, the drive unit 91 drives the gear unit 92, causing the switching unit 8 to change to the first position, so that the blowing and drying unit 3 blows out the dried material. At this time, since the second channel P2 is blocked, the airflow cannot enter, and the dried material can only enter the first channel P1 through the tube space 71, and be blown into the side cover space 651 through the first open end 624, and then fall out to the outside from the bottom end of the side cover space 651. When the dried material is discharged, since the airflow cannot enter the second channel P2, in principle the dried material is not likely to enter the bottom cover space 622 and the cover interlayer space 43, but the grid cover 51 can more effectively prevent the dried material from running into the second channel P2.

[0063] The first embodiment is characterized in that: when baking the object to be baked, the separated material will not escape from the first channel P1, and the object to be baked halfway or the baked product will not escape from the second channel P2. When the baked product is discharged, the baked product will not escape from the second channel P2, and the separated material has been blown out during the baking process and will not escape from the first channel P1. Therefore, it can be ensured that the baked product escapes from the first channel P1 and that the separated material escapes from the second channel P2, so that the baked product will not be confused with the separated material.

[0064] See Figure 8 , 9 10. In the second embodiment of the baking apparatus of the present invention, the design of the cover unit 4, the grid cover unit 5, and the cover unit 6 are different, and the switching unit 8 is sleeved outside the air duct seat 23 and disposed above the first base 21 to provide support for the cover unit 4, thereby replacing the second base 22 (see [reference]) which omits the base unit 2. Figures 2 to 4 The adapter 24 that supports the inner cover 41 of the base unit 2 is also different in shape to adapt to the cover unit 4.

[0065] See Figures 9 to 11 The cover unit 4 omits the outer cover 42 and includes an outer cover assembly 44 that fits over the inner cover 41. The outer cover assembly 44 includes a first outer cover 441 disposed on the switching unit 8 and fitted over the inner cover 41 at intervals, and a second outer cover 442 located between the inner cover 41 and the first outer cover 441.

[0066] The first outer cover 441, the inner cover 41, and the air duct seat 23 of the base unit 2 cooperate to define the cover interlayer space 43.

[0067] The second outer cover 442 includes a main cover portion 443 that extends vertically and is generally truncated by an inclined plane, a bottom cover portion 444 that is inverted bowl-shaped and extends downward from the main cover portion 443 and passes through the air duct seat 23 of the base unit 2, two inclined cover portions 445 that are radially opposite to each other and spaced apart from the main cover portion 443 and extend downward at an incline, and two straight cover portions 446 that extend vertically downward from the inclined cover portions 445 respectively.

[0068] The outer edge of each inclined cover portion 445 abuts against the inner surface of the first outer cover 441, and the outer edge of each straight cover portion 446 abuts against the inner surface of the switching unit 8 (auxiliary reference). Figure 8 This, in conjunction with the inclined cover portion 445, divides the cover interlayer space 43 into a first region 431 and a second region 432 that extend vertically and are connected but not directly connected to each other.

[0069] The cover unit 5 further includes a support member 52 installed at the top of the inner cover 41. The support member 52 cooperates with the first outer cover 441 to support the cover member 51 and the cover unit 6.

[0070] The cover unit 6 includes a top cover 67 disposed above the first outer cover 441, and a bottom cover 68 located below the top cover 67 and above the inner cover 41 and the first outer cover 441 of the cover unit 4.

[0071] The top cover 67 defines a top cover space 671 that connects the top of the inner space 71 and the top of the first region 431. The bottom cover 68 is mounted on the top of the support 52 and the first outer cover 441 and is inserted into the pipe unit 7. The bottom cover 68 defines a bottom cover space 681 that connects the top of the inner space 411 and the top of the second region 432. The bottom cover space 681 is connected to the inner space 411 through the grille 51.

[0072] The switching unit 8 is located below the first outer cover 441 and passes through the base unit 2 and the cover interlayer space 43, and includes a seat wall 83 with a C-shaped cross-section. The seat wall 83 defines a lateral through seat opening 84 and can rotate about its own center as an axis 4.

[0073] In this second embodiment, the first channel P1 is formed by the top cover space 671 and the first region 431, and the second channel P2 is formed by the bottom cover space 681 and the second region 432. The switching unit 8 can be manually operated by the user to rotate relative to the base unit 2 and the cover unit 4, so as to be positioned as follows when baking the food: Figure 8 ,9 The second position shown in Figure 11 is used to shield the first channel P1 and allow the second channel P2 to communicate with the outside through the seat opening 84, and to be located as shown in Figure 11 when the dried material is discharged. Figure 12 The first position shown is used to shield the second channel P2 and allow the first channel P1 to connect to the outside through the seat opening 84.

[0074] In this second embodiment, when baking the object to be baked, the switching unit 8 is in the second position. In the second position, the seat wall 83 of the switching unit 8 covers the bottom of the first region 431, preventing the hot air provided by the drying unit 3 from being blown out through the first channel P1. At this time, the seat opening 84 of the switching unit 8 connects the bottom of the second region 432 with the outside, allowing the hot air provided by the drying unit 3 to be blown out through the second channel P2. Since the hot air provided by the drying unit 3 can be blown out through the second channel P2, the separated material generated during the baking of the object to be baked can be discharged through the grille 51, through the bottom cover space 681 and the second region 432, and through the seat opening 84. The inclined extension portion 445 and the straight portion 446 of the second outer cover 442 abut against the inner surfaces of the first outer cover 441 and the seat wall 83 of the switching unit 8. Therefore, the inclined extension portion 445 and the straight portion 446 can cooperate to confine the separated object in the second region 432, so that the separated object does not enter the first region 431.

[0075] When the baked goods are discharged after baking, the user can switch the switching unit 8 to the first position simply by rotating it. In the first position, the seat wall 83 of the switching unit 8 covers the bottom of the second region 432, preventing the hot air provided by the drying unit 3 from being blown out through the second channel P2. At this time, the seat opening 84 of the switching unit 8 connects the bottom of the first region 431 with the outside, allowing the hot air provided by the drying unit 3 to be blown out through the first channel P1. Since the hot air provided by the drying unit 3 can be blown out through the first channel P1, the baked goods can be discharged through the pipe unit 7, through the top cover space 671 and the first region 431, and through the seat opening 84. When the baked goods enter the first region 431, they can move to the seat opening 84 and leave this second embodiment under the guidance of the inclined cover 445 and the straight cover 446.

[0076] In summary, the beneficial effects of the present invention are as follows: the grid cover unit 5 is disposed between the internal space 411 and the second channel P2, which can prevent the object to be baked or the baked product from running into the second channel P2 for the separation product to leave, and the switching unit 8 only allows one of the first channel P1 and the second channel P2 to function at a time. Therefore, the present invention can ensure that the object to be baked and the baked product are not confused with the separation product.

[0077] The above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the present invention. Equivalent variations made in accordance with the contents of the claims and specification of the present invention should also be covered by the scope of the present invention.

Claims

1. A baking apparatus defining an internal space suitable for containing an object to be baked, and including a blowing unit suitable for providing airflow to bake the object into a baked product, characterized in that: The baking apparatus further defines a first channel and a second channel that connect the internal space to the outside world, and includes a grid cover unit located between the internal space and the second channel, a pipe unit inserted into the grid cover unit and connecting the internal space and the first channel, and a switching unit. The grid cover unit has a grid structure and defines multiple grid holes, thus allowing the separation material generated by the object to be baked during the baking process to pass through, but not allowing the object to be baked or the dried material to pass through. During the discharge of the dried material, the switching unit allows the first channel to connect to the outside world and blocks the second channel, so that the dried material can be blown out through the pipe unit from the first channel without being blown out through the second channel. During the baking process, the switching unit allows the second channel to connect to the outside world and blocks the first channel, so that the separation material separated from the object to be baked can be blown out through the grid cover unit from the second channel without being blown out through the first channel.

2. The baking apparatus as described in claim 1, characterized in that: The baking apparatus further includes a base unit for the blowing unit, a cover unit disposed on the base unit, and a cover unit covering the cover unit and the grid cover unit. The cover unit cooperates with the base unit to define the internal space located below the cover unit and below the grid cover unit. The grid cover unit is annular, covering the upper end of the internal space and defining an annular hole. The second channel communicates with the internal space through the grid cover unit. The tube unit defines the tube space and extends downward from the cover unit into the annular hole of the grid cover unit, extending into the bottom of the internal space, thereby connecting the tube space with the internal space and allowing the baked material to enter the tube space. The cover unit defines the first channel communicating with the internal space through the tube space.

3. The baking apparatus as described in claim 2, characterized in that: The cover unit includes an inner cover and an outer cover, which are disposed on the base unit and nested together. The inner cover and the base unit cooperate to define the internal space, and together with the outer cover and the base unit, define a cover interlayer space between the inner cover and the outer cover. The cover unit includes an inner cover portion, an outer cover portion located outside the inner cover portion, and a cover interlayer space located between the inner cover portion and the outer cover portion. The inner cover portion defines the first channel, and a cover bottom space located below the first channel and above the internal space and the grid cover unit. The pipe unit passes through the cover bottom space downward from the first channel into the internal space. The cover interlayer space is connected to the cover bottom space through the cover interlayer space and together with the cover interlayer space and the cover bottom space, constitutes the second channel.

4. The baking apparatus as described in claim 3, characterized in that: The switching unit is disposed between the inner cover and the outer cover and can rotate relative to the inner cover and the outer cover, thereby selectively shielding one of the first channel and the interlayer space of the cover.

5. The baking apparatus as described in claim 4, characterized in that: The first channel includes a first open end opposite to the inner space of the tube unit, and the cover interlayer space includes a second open end opposite to the cover interlayer space. The second open end and the first open end are respectively located on opposite sides of the cover unit in the radial direction.

6. The baking apparatus as described in claim 5, characterized in that: The switching unit includes an annular wall located between the inner cover and the outer cover, and a top wall connecting the top of the annular wall. The annular wall has a first, laterally penetrating opening. The first opening and the top wall are radially spaced apart. The top wall and the annular wall define a second opening that is radially on the same side as the first opening and vertically penetrating it. The switching unit can switch between a first position where the dried material can be discharged and a second position where the material to be baked can be baked. In the first position, the first opening is located outside the first open end and laterally connects to the first open end, and the top wall is located above the second open end and shields the second open end. In the second position, the second opening is located above the second open end and vertically connects to the second open end, and the annular wall is located outside the first open end and shields the first open end.

7. The baking apparatus as described in claim 6, characterized in that: The cover unit further includes a side cover extending downward from the outer cover portion. The baking device further includes a drive unit disposed in the side cover portion and a gear unit connected between the drive unit and the switching unit. The drive unit can drive the switching unit to change between the first position and the second position through the gear unit.

8. The baking apparatus as described in claim 6, characterized in that: The cover unit also includes a side cover extending downward from the outer cover portion. The side cover portion defines a side cover space located outside the outer cover body. The top of the side cover space can communicate with the first open end, and the dried material blown out from the first channel can enter from the top of the side cover space and fall out from the bottom.

9. The baking apparatus as described in claim 1, characterized in that: The baking apparatus further includes a base unit for the blowing unit, a cover unit disposed on the base unit, and a cover unit covering the cover unit and the grid cover unit. The cover unit cooperates with the base unit to define the internal space and defines a cover interlayer space located outside the internal space. The cover interlayer space includes a first region and a second region. The cover unit defines a top cover space and a bottom cover space that are spaced apart vertically. The top cover space cooperates with the first region to form a first channel, and the bottom cover space cooperates with the second region to form a second channel. The tube unit extends downward from the cover unit and is inserted into the grid cover unit, extending into the bottom of the internal space. The tube unit defines an internal space that connects the internal space and the top cover space and allows the baked item to enter. The grid cover unit is annular and defines annular holes for the tube unit to be inserted. It allows the separated material to enter the bottom cover space from the internal space but does not allow the item to be baked or the baked item to enter the bottom cover space from the internal space.

10. The baking apparatus as claimed in claim 9, characterized in that: The cover unit includes an inner cover and an outer cover assembly disposed on the base unit and nested together. The inner cover and the base unit cooperate to define the internal space. The outer cover assembly includes a first outer cover spaced apart from the inner cover and a second outer cover located between the inner cover and the first outer cover. The first outer cover, the inner cover, and the base unit cooperate to define the cover interlayer space. The second outer cover separates the cover interlayer space into a first region and a second region that extend vertically through each other. The grid cover unit is disposed at the top of the inner cover and covers the top of the internal space. The cover unit includes a top cover disposed above the first outer cover and a bottom cover disposed below the top cover. The top cover defines a top cover space that connects the top of the tube space and the top of the first region. The bottom cover defines a bottom cover space that connects the top of the internal space and the top of the second region. The tube unit is inserted into the bottom cover and the grid cover unit and extends into the bottom of the internal space from the bottom cover, thereby connecting the tube space to the internal space.

11. The baking apparatus as claimed in claim 10, characterized in that: The second outer cover includes a main cover portion, two inclined cover portions located outside the main cover portion and spaced apart from each other and extending downward from the bottom cover member, and two straight cover portions extending downward from the inclined cover portions respectively. The inclined cover portions and the straight cover portions abut against the inner surfaces of the first outer cover and the switching unit respectively, thereby separating the cover interlayer space into the first region and the second region. The inclined cover portions and the straight cover portions can cooperate to guide the dried material blown out from the tube space and entering the first region through the top cover space in the first region, and confine the separated material blown out from the internal space and entering the second region through the bottom cover space to the second region.

12. The baking apparatus as claimed in claim 10, characterized in that: The switching unit includes a C-shaped seat wall, which is located below the first outer cover and passes through the bottom outer side of the space between the base unit and the cover, defining a lateral through-hole. The switching unit can rotate around its own center and switch between a first position where the dried material can be discharged and a second position where the material to be baked can be baked. In the first position, the through-hole connects to the bottom of the first area, and the seat wall covers the bottom of the second area. In the second position, the through-hole connects to the bottom of the second area, and the seat wall covers the bottom of the first area.

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