Oven

Abstract

The utility model discloses an oven, and belongs to the technical field of cooking equipment. Comprising a rear plate, a left side plate and a right side plate, and the width of the rear plate is larger than the height of the rear plate; the fan cover is arranged on the inner side of the rear plate, and the fan cover and the rear plate are arranged at intervals to form a hot air cavity; the fan is arranged in the hot air cavity; the heating pipe is arranged in the hot air cavity in the circumferential direction of the fan; the wind scooper is used for leading out part of wind which is rolled out from the fan and heated by the heating pipe in the hot wind cavity and discharging the wind into the cavity from the left side plate or the right side plate; the wind scooper comprises a side cover body which covers the outer side of the left side plate or the right side plate; and the rear cover body is clamped and embedded with the upper part or the lower part of one side, corresponding to the side cover body, of the rear plate and defines an air outlet, the rear cover body is communicated with the side cover body, and the rear cover body is communicated with the hot air cavity through the air outlet. According to the oven, the problem that heat of the front part, the middle part and the rear part of the oven is not uniform is solved, so that cooking of the oven is more uniform, and the cooking effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking equipment, in particular to an oven. BACKGROUND

[0002] The hot air circulation system of the oven can make the oven cook food more evenly, speed up the heat exchange on the surface of the food, and cook the food faster, so it is a high-efficiency cooking mode that is favored by users. The traditional hot air mode is that the oven relies on the rotation of the rear fan to suck the air in the cavity from the middle part and roll out from the shaft of the fan blade. The rolled air is heated by the heating pipe around the fan blade, and then discharged from the front or side of the fan cover, and circulates back and forth to realize uniform heating of the entire cavity. Because of forced air circulation, this mode is more efficient and uniform than the natural convection mode.

[0003] However, due to structural limitations, the heating pipes of the hot air circulation system are arranged in the rear part, and the air circulation in the cavity is driven by the rear fan. Although it is more uniform than other modes, the front part of the oven (near the oven door) is farther away from the heating pipes, and on the one hand, the heat transfer path is longer and the heat is lower; on the other hand, the air near the oven door will be heated outward through the oven door, and the heat supply is slower. Therefore, the existing oven often has temperature stratification in the front, middle and rear parts even in the hot air mode, and when the air field is significantly uneven, the corners will have lower heat, which affects the cooking effect of the food. SUMMARY

[0004] The present application provides an oven, which solves the problem of uneven heat distribution in the front, middle and rear parts of the oven, so that the oven cooks more evenly and has better cooking effect.

[0005] An oven comprises: a cavity having a back plate, a left side plate and a right side plate, the width of the back plate being greater than the height of the back plate; wherein the left side plate and the right side plate are arranged on both sides of the back plate along the height direction of the back plate; a fan cover arranged on the inner side of the cavity and spaced apart from the back plate to form a hot air cavity; a fan arranged in the hot air cavity; a heating pipe arranged in the hot air cavity along the circumference of the fan; and a wind guide cover for guiding the part of the air in the hot air cavity heated by the heating pipe after being rolled out from the fan to the left side plate or the right side plate; the wind guide cover comprises: a side cover body arranged on the outer side of the left side plate or the right side plate and defining a side air guide cavity; and a back cover body arranged on the upper part or the lower part of the back plate corresponding to one side of the side cover body and defining a back air guide cavity, the back air guide cavity being in communication with the side air guide cavity, and the back air guide cavity being in communication with the hot air cavity through an air outlet formed on the back plate; as viewed from the front side of the fan, if the fan rotates counterclockwise, the side cover body is arranged on the outer side of the left side plate, the back cover body is arranged on the left lower part of the back plate, the back plate forms a left lower air outlet corresponding to the back cover body, and / or the side cover body is arranged on the outer side of the right side plate, the back cover body is arranged on the right upper part of the back plate, and the back plate forms a right upper air outlet corresponding to the back cover body; if the fan rotates clockwise, the side cover body is arranged on the outer side of the left side plate, the back cover body is arranged on the left upper part of the back plate, the back plate forms a left upper air outlet corresponding to the back cover body, and / or the side cover body is arranged on the outer side of the right side plate, the back cover body is arranged on the right lower part of the back plate, and the back plate forms a right lower air outlet corresponding to the back cover body.

[0006] The oven with a 50L oven cavity needs to occupy a part of space due to the top control box part, and the traditional home cabinet has a standard specification, so the oven volume is characterized by being long in the width direction and low in the height direction in space. Since the fan blade and the heating pipe are circularly arranged, according to the rotation rule of the fan blade, as viewed from the front side of the fan, taking the counterclockwise rotation of the fan blade as an example, in the left upper part, due to the limited top space, the air volume of the left upper region is smaller than that of the left lower region; similarly, the air volume of the right lower region is smaller than that of the right upper region, so that the characteristic is that when the fan blade rotates counterclockwise, the air volume of the left lower and right upper regions is relatively large, and the air volume of the left upper and right lower regions is relatively small, so that the air field of the whole machine is not uniform, and a temperature dead zone appears in some regions. Based on this, the wind guide cover is additionally arranged in the large air volume region at the back of the cavity to guide part of the air volume from the back to the side, which can match the air volume of the whole back on the one hand, and the increased air volume on the side can make each region of the same layer more uniform.

[0007] The air guide cover can reduce air flow loss and air volume reduction caused by air collision in the traditional fan cover, so that the air volume brought by the fan blades can be fully utilized to promote air circulation in the cavity. On the other hand, it can reduce the phenomenon of local temperature unevenness caused by poor wind field, and further improve the cooking efficiency. Specifically, the side cover can make the hot air from the rear of the cavity blow out from the side of the cavity and participate in the air circulation in the cavity, thereby improving the heat exchange efficiency and improving the cooking speed. In addition, this structure can solve the problem of uneven heat distribution in the front, middle and rear parts of the oven to some extent, so that the oven cooks more evenly and the cooking effect is better. Compared with the traditional hot air circulation method, the structure can provide space for the air flow to release in the fan cover, reducing air flow loss. At the same time, the heat carried by the air flow according to the specific pipeline path can improve the uniformity of the oven and further improve the cooking efficiency.

[0008] In some embodiments, a partition is arranged in the side air guide cavity, which divides the side air guide cavity into a first side air guide cavity and a second side air guide cavity; the first side air guide cavity is used to discharge the heated air in the hot air cavity to the rear of the cavity through the left side plate or the right side plate; and the second side air guide cavity is used to discharge the heated air in the hot air cavity to the front of the cavity through the left side plate or the right side plate. The partition uniformly divides the heated air in the hot air cavity into two parts at the air outlet position, one part participates in the rear circulation in the cavity, and the other part participates more in the air circulation in the front of the cavity. The temperature near the front door part area is lower, and more hot air participates in the front to accelerate the front temperature rise rate.

[0009] In some embodiments, a shelf is further arranged in the cavity and fixedly connected to the inner sides of the left side plate and the right side plate. The shelf comprises an upper shelf, a middle shelf, and a lower shelf from top to bottom. The shelf is used to install a grill or a baking tray.

[0010] In some embodiments, the side air guide cavity comprises an upper side air guide cavity, a middle side air guide cavity, and a lower side air guide cavity; the upper side air guide cavity is arranged corresponding to the upper shelf, the middle side air guide cavity is arranged corresponding to the middle shelf, and the lower side air guide cavity is arranged corresponding to the lower shelf. By limiting the side cover to be three long strips, it is beneficial to guide the air outlet of the wind to the target position, and further limit the side cover corresponding to the cavity side plate U plate at the shelf position, to further ensure that the air outlet of the wind is guided to the target position.

[0011] In some embodiments, a plurality of openings are arranged on the left side plate or the right side plate connected with the air guide cover, and the openings correspond to the side cover. Further, the openings are arranged on the left side plate or the right side plate corresponding to the area where the grill / baking tray is installed. The opening position arranged in this area can better uniformly ventilate and heat the food on the grill / baking tray, which is beneficial to the uniformity and efficiency of food baking.

[0012] In some embodiments, the aperture diameter of the opening gradually decreases from the front to the rear of the left or right side plate. The large-to-small opening from front to rear facilitates the outlet air to maintain as uniform as possible from the front section and the rear end, thereby improving the uniformity of the hot air in the cavity.

[0013] In some embodiments, the side cover is fixedly connected to the left or right side plate through a shelf fixing position, and the rear cover is fixedly connected to the rear plate through a stud of a fan cover fixing position. The installation of the air guide cover is positioned by relying on the original installation position of the oven, thereby reducing additional openings.

[0014] In some embodiments, the front end of the side cover is fixedly connected to the front end of the left or right side plate through a screw. This effectively avoids defects caused by metal deformation, and the screw hole added at the front end of the air guide cover can be combined with the front plate to better ensure that its function is not damaged.

[0015] An oven includes a cavity having a rear plate, a left side plate, and a right side plate, the rear plate having a width greater than a height; a fan cover disposed inside the cavity and spaced apart from the rear plate to form a hot air cavity; a fan disposed in the hot air cavity; a heating pipe disposed in the hot air cavity along a circumference of the fan; and an air guide cover for guiding air in the hot air cavity that has been heated by the heating pipe after being rolled out from the fan to be discharged and directed into the cavity by the left or right side plate. When the fan rotates counterclockwise as viewed from a front side of the fan, air rolled out axially from a left lower portion of the fan is heated by the heating pipe disposed around the fan, then discharged through the air guide cover and directed into the cavity by the left side plate, and / or air rolled out axially from a right upper portion of the fan is heated by the heating pipe disposed around the fan, then discharged through the air guide cover and directed into the cavity by the right side plate. When the fan rotates clockwise, air rolled out axially from a left upper portion of the fan is heated by the heating pipe disposed around the fan, then discharged through the air guide cover and directed into the cavity by the left side plate, and / or air rolled out axially from a right lower portion of the fan is heated by the heating pipe disposed around the fan, then discharged through the air guide cover and directed into the cavity by the right side plate.

[0016] The application additionally increases the air guide cover drainage in the large air volume area corresponding to the rear of the cavity, and drains part of the air volume from the rear to the side, which on the one hand matches the overall rear air volume, and on the other hand the increased air volume of the side can make each area of the same layer more uniform. The setting of the above-mentioned air guide cover can on the one hand reduce the air flow loss and air volume reduction caused by the mutual collision of air in the traditional fan cover, so as to fully utilize the air volume brought by the fan blade to promote the air circulation in the cavity; on the other hand, it can reduce the phenomenon of local temperature unevenness caused by poor wind field, and further speed up the cooking efficiency. Specifically, the side cover can make the hot air from the rear blow out from the side of the cavity and participate in the overall air circulation in the cavity, thereby accelerating the heat exchange efficiency and improving the cooking speed; in addition, the structure can to some extent solve the problem of uneven heat of the front, middle and rear parts of the oven, so as to make the oven cooking more uniform and the cooking effect better. Compared with the traditional hot air circulation mode, the structure can provide a release space for the air flow colliding with each other in the fan cover, reducing the air flow loss; at the same time, the heat carried out by the air flow according to the specific pipeline path can improve the uniformity of the oven and further improve the cooking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A schematic diagram of the hot air flow of the existing oven is shown;

[0018] Figure 2 A schematic diagram of the setting mode of the fan and heating pipe of the oven according to some embodiments is shown;

[0019] Figure 3 A schematic diagram of one air outlet setting of the oven according to some embodiments is shown;

[0020] Figure 4 A schematic diagram of the oven structure containing an air guide cover according to some embodiments is shown;

[0021] Figure 5 A schematic diagram of the oven structure containing another air guide cover according to some embodiments is shown;

[0022] Figure 6 A schematic diagram of the rear structure of the oven containing another air guide cover according to some embodiments is shown;

[0023] Figure 7 A schematic diagram of the structure of one air guide cover according to some embodiments is shown;

[0024] Figure 8 A schematic diagram of the structure of another air guide cover according to some embodiments is shown;

[0025] Figure 9 A schematic diagram of the setting of the shelf and the opening according to some embodiments is shown;

[0026] Figure 10 FIG. 6 shows a schematic diagram of another layer shelf and the arrangement of openings according to some embodiments;

[0027] In the above figures, 101, back plate; 102, left side plate; 103, right side plate; 20, fan cover; 30, fan; 40, heating pipe; 50, air guide cover; 501, side cover body; 5011, first side air guide cavity; 5012, second side air guide cavity; 5013, upper side air guide cavity; 5014, middle side air guide cavity; 5015, lower side air guide cavity; 502, rear cover body; 503, air outlet; 60, layer shelf; 601, upper layer shelf; 602, middle layer shelf; 603, lower layer shelf; 70, opening. DETAILED DESCRIPTION

[0028] For the purpose of clarity and a thorough understanding of the present application, the exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be apparent to those having ordinary skill in the art that the described exemplary embodiments are only a portion of the embodiments of the present application and are not intended to limit the scope of the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] The terms "first", "second", are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] An oven's hot air circulation system, with its continuous hot air circulation, ensures more even cooking and accelerates heat exchange across the food's surface, resulting in faster cooking. Therefore, it's a popular and efficient cooking method. Figure 1 As shown, in traditional hot air mode, the oven relies on a rear fan 30 to draw air from the center of the cavity and axially exhaust it through the fan blades. The exhaust air is heated by heating elements 40 around the fan blades and then exhausted from the front or side of the fan shroud 20, creating a continuous cycle for uniform heating of the entire cavity. Because of this forced air circulation, this mode is more efficient and uniform than natural convection heating. However, due to structural limitations, the heating elements 40 for hot air circulation are all located at the rear, and the air circulation within the cavity relies on the rear fan 30. Although this results in more uniform heating than other modes, the front of the oven (near the oven door) is further from the heating elements 40. This means the heat travels a longer path and is less intense; furthermore, air near the oven door dissipates heat outwards through the door, resulting in slower heat replenishment. Therefore, even in hot air mode, existing ovens often exhibit temperature stratification between the front, middle, and rear sections. Moreover, when the airflow is significantly uneven, the corners experience even lower temperatures, affecting the cooking results.

[0033] This application adds an additional air guide hood 50 to the high air volume area at the rear of the cavity to divert some of the air volume from the rear to the side. This not only matches the overall rear air volume, but also makes the increased air volume on the side more uniform across different areas on the same floor.

[0034] This embodiment provides an oven, see reference. Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, the oven includes a cavity, and the inner cavity enclosed by the cavity is used for food cooking.

[0035] The cavity has a rear plate 101, a left side plate 102 and a right side plate 103, and the width of the rear plate 101 is greater than the height of the rear plate 101. Therefore, the oven volume is characterized by being long in the width direction and low in the height direction in space. Since the fan blade and the heating pipe 40 are circularly arranged, according to the rotation rule of the fan blade, when the fan blade of the oven rotates counterclockwise (at this time, the circumferential direction of the fan rotation is from the upper right to the upper left to the lower left to the lower right), from the front side of the fan (that is, from the front plate to the rear plate of the cavity, the rotation direction of the fan in this application is observed from the front side of the fan), the air volume of the upper left area is less than that of the lower left area due to the limited space at the top; similarly, the air volume of the lower right area is less than that of the upper right area, so this characteristic is that when the fan blade rotates counterclockwise, the air volume of the lower left and the upper right is larger, and the air volume of the upper left and the lower right is smaller, so the air field of the whole machine is uneven, and there is a temperature dead zone in some areas. If the fan blade of the oven rotates clockwise, the air volume of the lower left area is less than that of the upper left area due to the limited space at the top; similarly, the air volume of the upper right area is less than that of the lower right area, so this characteristic is that when the fan blade rotates counterclockwise, the air volume of the upper left and the lower right is larger, and the air volume of the lower left and the upper right is smaller, so the air field of the whole machine is uneven, and there is a temperature dead zone in some areas.

[0036] In addition, if the width of the rear plate 101 is less than the height of the rear plate 101, the oven volume is characterized by being short in the width direction and long in the height direction in space. Since the fan blade and the heating pipe 40 are circularly arranged, according to the rotation rule of the fan blade, when the fan blade of the oven rotates counterclockwise (at this time, the circumferential direction of the fan rotation is from the upper right to the upper left to the lower left to the lower right), from the front side of the fan (that is, from the front plate to the rear plate of the cavity, the rotation direction of the fan in this application is observed from the front side of the fan), the air volume of the upper right area is less than that of the lower right area due to the limited space on the right side (the air volume loss is large after the air from the fan passes through the narrow space when the fan rotates); similarly, the air volume of the lower left area is less than that of the upper left area, so this characteristic is that when the fan blade rotates counterclockwise, the air volume of the lower left and the upper right is larger, and the air volume of the upper left and the lower right is smaller, so the air field of the whole machine is uneven, and there is a temperature dead zone in some areas. If the fan blade of the oven rotates clockwise, the air volume of the lower right area is less than that of the upper right area due to the limited space on the right side; similarly, the air volume of the upper left area is less than that of the lower left area, so this characteristic is that when the fan blade rotates counterclockwise, the air volume of the upper left and the lower right is larger, and the air volume of the lower left and the upper right is smaller, so the air field of the whole machine is uneven, and there is a temperature dead zone in some areas.

[0037] Further, the top of the cavity is provided with a control box part, and the front is open, and the food for cooking can be put into or taken out of the cooking cavity through the opening, and the opening is provided with a door body.

[0038] Referring to Figure 1As shown, the oven comprises a fan cover 20, which is arranged on the inner side of the cavity and is spaced apart from the rear plate 101 to form a hot air chamber. The middle part of the fan cover 20 is provided with a small hole for the air in the cavity to enter. The hot air in the hot air chamber is discharged into the cavity to cook the food.

[0039] As shown in Figure 2 , the oven comprises a fan 30, which is arranged in the hot air chamber and is fixed to the rear plate 101 of the cavity. The fan 30 rotates to suck the air in the cavity through the small hole in the middle part of the fan cover 20 and rolls out from the axial direction of the fan blade. The rolled-out air is heated by the heating pipe 40 around the fan blade.

[0040] Continuing to refer to Figure 2 , the oven comprises a heating pipe 40, which is arranged in the hot air chamber along the circumference of the fan 30. The shape of the heating pipe 40 is adapted to the shape of the outer contour of the fan 30, which is circular. The heating pipe 40 is arranged along the circumference of the fan 30, which is beneficial to the direct contact of the air rolled out from the axial direction of the fan blade with the heating pipe 40, realizing rapid and comprehensive heating.

[0041] Referring to Figure 4 , 5 , and 6, the oven comprises a wind guide cover 50 for guiding the part of the hot air in the hot air chamber that is heated by the heating pipe 40 after being rolled out from the fan 30 to be discharged and discharged into the cavity by the left side plate 102 or the right side plate 103. The wind guide cover 50 is arranged on the outer side of the cavity as a whole. Among them, the number of the wind guide cover 50 can be 2, which are arranged on the two sides of the cavity, or 1, which is arranged on one side of the cavity. The effect is still better than that of the traditional hot air mode.

[0042] Referring to Figure 3 , if the fan 30 rotates counterclockwise, the wind guide cover 50 arranged on the left side of the cavity comprises a rear cover body 502 covered on the left lower part of the rear plate 101. The rear cover body 502 and the rear plate 101 define a rear air guide cavity. The rear plate 101 forms a left lower air outlet 503 corresponding to the rear cover body 502. The rear air guide cavity is in communication with the hot air chamber through the left lower air outlet 503 to guide the excessive air volume in the left lower part of the hot air chamber out.

[0043] Further, the wind guide cover 50 arranged on the left side of the cavity comprises a side cover body 501 covered on the outer side of the left side plate 102. The side cover body 501 and the left side plate 102 define a side air guide cavity. The side air guide cavity is in communication with the rear air guide cavity. The rear air guide cavity is in communication with the hot air chamber through the left lower air outlet 503 to guide the excessive air volume in the left lower part of the hot air chamber into the side air guide cavity and discharge it into the cavity through the left side plate 102.

[0044] If the fan 30 rotates counterclockwise, the air guide cover 50 arranged on the right side of the cavity includes a rear cover body 502 arranged on the upper right side of the rear plate 101, the rear cover body 502 and the rear plate 101 define a rear air guide cavity, the rear plate 101 forms an upper right air outlet 503 corresponding to the rear cover body 502, and the rear air guide cavity is communicated with the hot air cavity through the upper right air outlet 503 to guide the excessive air volume in the upper right of the hot air cavity out.

[0045] Further, the air guide cover 50 arranged on the right side of the cavity includes a side cover body 501 arranged on the outer side of the right side plate 103, the side cover body 501 and the right side plate 103 define a side air guide cavity, the side air guide cavity is communicated with the rear air guide cavity, the rear air guide cavity is communicated with the hot air cavity through the upper right air outlet 503 to guide the excessive air volume in the upper right of the hot air cavity into the side air guide cavity and then discharged to the cavity through the right side plate 103.

[0046] If the fan 30 rotates clockwise, the air guide cover 50 arranged on the left side of the cavity includes a rear cover body 502 arranged on the upper left side of the rear plate 101, the rear cover body 502 and the rear plate 101 define a rear air guide cavity, the rear plate 101 forms an upper left air outlet 503 corresponding to the rear cover body 502, and the rear air guide cavity is communicated with the hot air cavity through the upper left air outlet 503 to guide the excessive air volume in the upper left of the hot air cavity out.

[0047] Further, the air guide cover 50 arranged on the left side of the cavity includes a side cover body 501 arranged on the outer side of the left side plate 102, the side cover body 501 and the left side plate 102 define a side air guide cavity, the side air guide cavity is communicated with the rear air guide cavity, the rear air guide cavity is communicated with the hot air cavity through the upper left air outlet 503 to guide the excessive air volume in the upper left of the hot air cavity into the side air guide cavity and then discharged to the cavity through the left side plate 102.

[0048] If the fan 30 rotates clockwise, the air guide cover 50 arranged on the right side of the cavity includes a rear cover body 502 arranged on the lower right side of the rear plate 101, the rear cover body 502 and the rear plate 101 define a rear air guide cavity, the rear plate 101 forms a lower right air outlet 503 corresponding to the rear cover body 502, and the rear air guide cavity is communicated with the hot air cavity through the lower right air outlet 503 to guide the excessive air volume in the lower right of the hot air cavity out.

[0049] Further, the air guide cover 50 arranged on the right side of the cavity includes a side cover body 501 arranged on the outer side of the right side plate 103, the side cover body 501 and the right side plate 103 define a side air guide cavity, the side air guide cavity is communicated with the rear air guide cavity, the rear air guide cavity is communicated with the hot air cavity through the lower right air outlet 503 to guide the excessive air volume in the lower right of the hot air cavity into the side air guide cavity and then discharged to the cavity through the right side plate 103.

[0050] The above-mentioned air guide cover 50 is mainly composed of three parts, one is the rear air outlet 503 which is clamped with the rear plate 101 of the cavity, this part is placed in the lower left and upper right position of the rear plate 101, which can fully guide the excessive air volume in the original fan cover 20 to the side; at the same time, the main part of the cover body of the side part is fully attached to the side plate of the cavity, which ensures that the air from the rear part circulates in the main part of the cover body, and finally is discharged from the side edge of the opening 70 on the side plate to the inside of the oven, thereby increasing the air circulation in the cavity and promoting the oven temperature to be more uniform.

[0051] The present application additionally increases the air guide cover 50 in the large air volume area corresponding to the rear part of the cavity to guide part of the air volume from the rear part to the side part, which on the one hand matches the overall rear air volume, and on the other hand the increased air volume in the side part can make each area of the same layer more uniform. The above-mentioned air guide cover 50 can on the one hand reduce the air flow loss and air volume reduction caused by the mutual collision of air in the traditional fan cover 20, thereby fully utilizing the air volume brought by the fan blade to promote air circulation in the cavity; on the other hand, it can reduce the phenomenon of local temperature unevenness caused by poor wind field, and further improve the cooking efficiency.

[0052] Specifically, the side cover body 501 can make the hot air from the rear part blow out from the side edge of the cavity and participate in the air circulation in the whole cavity, thereby accelerating the heat exchange efficiency and improving the cooking speed; in addition, this structure can to some extent solve the problem of uneven heat in the front, middle and rear parts of the oven, thereby making the cooking of the oven more uniform and the cooking effect better.

[0053] Compared with the traditional hot air circulation mode, this structure can provide space for the air flow in the fan cover 20 to release, thereby reducing the air flow loss; at the same time, the heat carried by this part of air flow according to the specific pipeline path can improve the uniformity of the oven and further improve the cooking efficiency.

[0054] It should be noted that the structure of the air guide cover 50 of the oven whose width of the rear plate 101 is less than the height of the rear plate 101 is the same as that of the oven whose width of the rear plate 101 is greater than the height of the rear plate 101, except that the corresponding air outlet needs to be set according to the above principle in the place where the air volume is relatively large.

[0055] Referring to Figure 7 As shown in the figure, a partition plate is arranged in the side air guide cavity, which divides the side air guide cavity into a first side air guide cavity 5011 and a second side air guide cavity 5012; the first side air guide cavity 5011 is used to discharge part of the air heated in the hot air cavity to the rear part of the cavity through the left side plate 102 or the right side plate 103; the second side air guide cavity 5012 is used to discharge part of the air heated in the hot air cavity to the front part of the cavity through the left side plate 102 or the right side plate 103.

[0056] The baffle divides the heated air in the hot air chamber into two parts at the position of the air outlet 503, one part participates in the circulation in the rear part of the chamber, and the other part participates more in the air circulation in the front part of the chamber. The temperature of the area close to the front door part is lower, and more hot air participating in the front part can accelerate the temperature rising rate of the front part.

[0057] Referring to Figure 8 As shown in the figure, the side cover 501 is in the shape of three long strips. By limiting the side cover 501 to be in the shape of three long strips, the air from the air outlet 503 can be more strongly guided to the target position.

[0058] The side air guide chamber includes an upper side air guide chamber 5013. The part of the heated air in the hot air chamber is input to the upper side air guide chamber 5013 from the air outlet 503, and the hot air is drained to the upper side of the chamber through the upper side air guide chamber 5013 and is discharged to the chamber through the left side plate 102 or the right side plate 103.

[0059] The side air guide chamber includes a middle side air guide chamber 5014. The part of the heated air in the hot air chamber is input to the middle side air guide chamber 5014 from the air outlet 503, and the hot air is drained to the middle side of the chamber through the middle side air guide chamber 5014 and is discharged to the chamber through the left side plate 102 or the right side plate 103.

[0060] The side air guide chamber includes a lower side air guide chamber 5015. The part of the heated air in the hot air chamber is input to the lower side air guide chamber 5015 from the air outlet 503, and the hot air is drained to the lower side of the chamber through the lower side air guide chamber 5015 and is discharged to the chamber through the left side plate 102 or the right side plate 103.

[0061] Referring to Figure 9 As shown in the figure, the oven further includes a shelf 60 located in the chamber and fixedly connected to the inner sides of the left side plate 102 and the right side plate 103. The shelf 60 is used to install a grill or a baking tray.

[0062] The shelf 60 includes an upper shelf 601. The upper side air guide chamber 5013 is arranged corresponding to the upper shelf 601. The shelf 60 includes a middle shelf 602. The middle side air guide chamber 5014 is arranged corresponding to the middle shelf 602. The shelf 60 includes a lower shelf 603. The lower side air guide chamber 5015 is arranged corresponding to the lower shelf 603. By limiting each side cover 501 to correspond to the shelf 60 at the position of the side plate U plate of the chamber, it is further ensured that the air from the air outlet 503 can be more strongly guided to the target position.

[0063] Referring to Figure 10 As shown in the figure, the left side plate 102 or the right side plate 103 connected with the air guide cover 50 is provided with a plurality of openings 70, and the openings 70 are arranged corresponding to the side cover 501 to ensure that the hot air drained from the side cover 501 enters the chamber through the openings 70 to cook the food in the chamber.

[0064] Further, the area corresponding to the layer shelf 60 where the grill / griddle is installed is provided with an opening 70 on the left side plate 102 or the right side plate 103. The opening 70 is positioned in the area to better uniformly ventilate and heat the food on the grill / griddle, which is conducive to the uniformity and efficiency of the food baking.

[0065] To further ensure the uniformity of the hot air in the cavity, the diameter of the opening 70 gradually decreases from the front to the rear of the left side plate 102 or the right side plate 103. The large-to-small holes from front to rear facilitate the outlet air to maintain as consistent as possible from the front section and the rear end, thereby improving the uniformity of the hot air in the cavity.

[0066] To maintain the original structure of the oven as much as possible and reduce the opening 70, the side cover 501 is fixedly connected with the left side plate 102 or the right side plate 103 through the fixed position of the layer shelf 60, and the rear cover 502 is fixedly connected with the rear plate 101 through the stud at the fixed position of the fan cover 20, so as to position and install the air guide cover 50 by relying on the original mounting position of the oven, thereby reducing the additional opening 70.

[0067] To further ensure the fastening of the connection, the front end of the side cover 501 is fixedly connected with the front end of the left side plate 102 or the right side plate 103 by screws. This connection mode effectively avoids defects caused by metal deformation, and the screw hole is added at the front end of the air guide cover 50, so that the front plate can be completely combined together, thereby better ensuring that the function is not damaged.

[0068] The embodiment provides an oven, wherein the fan 30 rotates counterclockwise, air axially rolled out from the left lower part of the fan 30 is heated by the heating pipe 40 arranged around the fan 30, and then is guided out through the air guide cover 50 and discharged to the cavity through the left side plate 102, and / or air axially rolled out from the right upper part of the fan 30 is heated by the heating pipe 40 arranged around the fan 30, and then is guided out through the air guide cover 50 and discharged to the cavity through the right side plate 103; the fan 30 rotates clockwise, air axially rolled out from the left upper part of the fan 30 is heated by the heating pipe 40 arranged around the fan 30, and then is guided out through the air guide cover 50 and discharged to the cavity through the left side plate 102, and / or air axially rolled out from the right lower part of the fan 30 is heated by the heating pipe 40 arranged around the fan 30, and then is guided out through the air guide cover 50 and discharged to the cavity through the right side plate 103.

[0069] The application additionally increases the wind guide cover 50 at the large air volume area corresponding to the rear of the cavity to drain part of the air volume from the rear to the side, which on one hand matches the overall rear air volume, and on the other hand the increased air volume on the side can make each area of the same layer more uniform. The above-mentioned arrangement of the wind guide cover 50 on one hand can reduce the air flow loss and air volume reduction caused by the mutual collision of air in the traditional fan cover 20, so as to fully utilize the air volume brought by the fan blade to promote air circulation in the cavity; on the other hand, it can reduce the phenomenon of local temperature unevenness caused by poor wind field, and further improve the cooking efficiency. Specifically, the side cover body 501 can make the rear hot air blow out from the side of the cavity and participate in the overall air circulation in the cavity, thereby accelerating the heat exchange efficiency and improving the cooking speed; in addition, this structure can solve the problem of uneven heat of the front, middle and rear of the oven to some extent, so as to make the oven cooking more uniform and the cooking effect better. Compared with the traditional hot air circulation mode, this structure can provide a release space for the air flow colliding with each other in the fan cover 20, thereby reducing the air flow loss; at the same time, the heat carried by the air flow according to the specific pipeline path can improve the uniformity of the oven and further improve the cooking efficiency.

[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

[0071] For the convenience of explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. An oven, characterized in that, The application relates to a heating device, comprising: a cavity with a back plate, a left side plate and a right side plate, the width of the back plate being greater than the height of the back plate; a fan cover arranged on the inner side of the cavity and spaced from the back plate to form a hot air cavity; a fan arranged in the hot air cavity; a heating pipe arranged in the hot air cavity along the circumference of the fan; a guide cover for guiding the part of air heated by the heating pipe after being rolled out of the fan in the hot air cavity to the left side plate or the right side plate; the guide cover comprises: a side cover body arranged on the outer side of the left side plate or the right side plate and defining a side guide cavity; a back cover body arranged on the upper part or the lower part of the back plate corresponding to one side of the side cover body and defining a back guide cavity, the back guide cavity being communicated with the side guide cavity, and the back guide cavity being communicated with the hot air cavity through an air outlet formed on the back plate; if the fan rotates counterclockwise, the side cover body is arranged on the outer side of the left side plate, the back cover body is arranged on the left lower part of the back plate, the back plate forms a left lower air outlet corresponding to the back cover body, and / or the side cover body is arranged on the outer side of the right side plate, the back cover body is arranged on the right upper part of the back plate, and the back plate forms a right upper air outlet corresponding to the back cover body; if the fan rotates clockwise, the side cover body is arranged on the outer side of the left side plate, the back cover body is arranged on the left upper part of the back plate, the back plate forms a left upper air outlet corresponding to the back cover body, and / or the side cover body is arranged on the outer side of the right side plate, the back cover body is arranged on the right lower part of the back plate, and the back plate forms a right lower air outlet corresponding to the back cover body.

2. The oven according to claim 1, characterized in that, A partition plate is arranged in the side guide cavity, and the partition plate divides the side guide cavity into a first side guide cavity and a second side guide cavity; the first side guide cavity is used for guiding the part of air heated in the hot air cavity to the back part of the cavity through the left side plate or the right side plate; and the second side guide cavity is used for guiding the part of air heated in the hot air cavity to the front part of the cavity through the left side plate or the right side plate.

3. The oven of claim 1, wherein, A shelf is arranged in the cavity and fixedly connected with the inner sides of the left side plate and the right side plate, and the shelf comprises an upper shelf, a middle shelf and a lower shelf from top to bottom.

4. The oven according to claim 3, characterized in that, The side guide cavity comprises an upper side guide cavity, a middle side guide cavity and a lower side guide cavity; the upper side guide cavity is arranged corresponding to the upper shelf, the middle side guide cavity is arranged corresponding to the middle shelf, and the lower side guide cavity is arranged corresponding to the lower shelf.

5. The oven of claim 3, wherein, A plurality of openings are arranged on the left side plate or the right side plate connected with the guide cover, and the openings are arranged corresponding to the side cover body.

6. The oven according to claim 5, characterized in that, The openings are arranged corresponding to the areas of the shelf on which grills or baking trays are installed.

7. The oven of claim 5, wherein, The diameters of the openings gradually decrease from the front part to the back part of the left side plate or the right side plate.

8. The oven of claim 1, wherein, The side cover body is fixedly connected with the left side plate or the right side plate through a shelf fixing position, and the back cover body is fixedly connected with the back plate through a stud of a fan cover fixing position.

9. The oven according to claim 8, characterized in that, The front end of the side cover is fixedly connected with the front end of the left side plate or the right side plate by a screw.

10. An oven, characterized in that The application relates to a hair dryer. The cavity comprises a rear plate, a left side plate and a right side plate, wherein the width of the rear plate is greater than the height of the rear plate. The fan cover is arranged on the inner side of the cavity and is spaced apart from the rear plate to form a hot air cavity. The fan is arranged in the hot air cavity. The heating pipe is arranged in the hot air cavity along the circumference of the fan. The air guide cover is used for guiding the air in the hot air cavity, which is heated by the heating pipe after being rolled out from the fan, out of the cavity through the left side plate or the right side plate. When the fan rotates counterclockwise, the air axially rolled out from the left lower part of the fan is heated by the heating pipe arranged around the fan, is guided out of the cavity through the air guide cover and is discharged into the cavity through the left side plate, and / or the air axially rolled out from the right upper part of the fan is heated by the heating pipe arranged around the fan, is guided out of the cavity through the air guide cover and is discharged into the cavity through the right side plate. When the fan rotates clockwise, the air axially rolled out from the left upper part of the fan is heated by the heating pipe arranged around the fan, is guided out of the cavity through the air guide cover and is discharged into the cavity through the left side plate, and / or the air axially rolled out from the right lower part of the fan is heated by the heating pipe arranged around the fan, is guided out of the cavity through the air guide cover and is discharged into the cavity through the right side plate.

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