Device for homogenizing heat distribution in ovens

Abstract

Device for homogenizing the heat distribution in baking ovens, which is arranged in an oven with at least one baking chamber between the oven door or oven flap and at least one heating element, characterized in that the device is designed to shield the oven door from the heat radiation emanating from the heating element and to direct the heat radiation emanating from the heating element onto the baked goods.

Description

[0001] The invention relates to a device for homogenizing heat distribution in deck ovens. This device is designed to direct heat radiation from the heating element directly onto the baked goods. This ensures that baked goods in the front area of ​​the baking chamber are better browned.

[0002] When baking in deck ovens, baked goods tend to be less well-browned due to heat loss through the oven door at the front of the oven. This problem is usually solved by increasing the heat output of the heating elements located at the top of the baking chamber, or by narrowing the distance between the heating elements at the front.

[0003] State-of-the-art solutions already exist that implement better homogenization of heat distribution within deck ovens. For example, DE 20 2021 105 432 U1 shows a dark-colored sheet metal panel positioned in the front area of ​​the baking chamber. Due to its higher emissivity, it improves heat distribution, particularly in the front area of ​​the baking chamber.

[0004] However, it is still necessary to coat the oven door with a heat-reflecting material, especially when using glass doors, to prevent the high transmission loss of heat radiation through the oven door. Furthermore, there is still a risk of direct contact with the front heating element when removing baked goods or cleaning the oven cavity.

[0005] The task is therefore to provide a device which at least partially overcomes the disadvantages of the prior art.

[0006] The object is achieved according to the invention by placing a device for homogenizing heat distribution in ovens between the oven door and a heating element located behind it. This directs the heat radiation emanating from the heating element specifically onto the baked goods underneath, further reducing heat loss through the oven door and preventing direct contact with the heating element.

[0007] The present invention is designed as an angled sheet to be arranged in front of any heating element, preferably in front of the first heating element emanating from the stove door.

[0008] The invention relates to a device for homogenising the heat distribution in baking ovens, especially in deck ovens, comprising a reflector plate for deflecting and reflecting the heat radiation from the heating element onto the baked goods, comprising: - at least one sheet, - at least one slotted hole. - as well as a fixed or variable angle of the sheet, whereby the reflector sheet is designed such that the distance between the reflector sheet and the heating element can be adjusted via the elongated holes, depending on the oven size. Furthermore, the reflector sheet is positioned in the upper area of ​​the baking chamber in front of a heating element. The reflector sheet is detachably attached to the upper area of ​​the baking chamber. This allows for easy replacement or cleaning of the device. The upper area of ​​the baking chamber refers to the ceiling of the baking chamber.

[0009] In the context of the invention, the terms "oven door," "oven glass," and "oven flap" are used synonymously. Furthermore, "oven door" and / or "oven flap" are understood to mean an oven door and / or oven flap. Furthermore, "oven glass" is understood to mean an oven glass. The oven glass differs from the oven flap only in that the oven glass is made of glass.

[0010] According to the invention, the reflector plate comprises a variable angle. The angle is created between the plate's attachment to the upper area of ​​the baking chamber and the side of the angled plate facing the oven door. The reflector plate shields the heat radiation emanating from the heating element from the oven door and directs it onto the baked goods below. Depending on the distance between the heating element and the baked goods, the angle of the reflector plate can vary. This allows the reflector plate to be adapted to different oven sizes.

[0011] The variable angle is formed during the production of the reflector plate. For this, it is necessary to know in advance which stove size the reflector plate will be used in. The angle for the reflector plate can then be designed accordingly.

[0012] This design prevents the heat radiation deflected by the reflector plate from reaching the stove door, eliminating the need for an additional heat-reflecting coating on the stove panel. Furthermore, purely metallic stove doors can be designed thinner.

[0013] The reflector plate is designed in such a way that no direct contact with the first heating element can be made when the stove door is opened. This not only improves heat distribution but also increases safety when opening the stove door.

[0014] As already described above, the reflector plate can be adjusted to different stove sizes, widths, heights and depths and is therefore not limited in terms of dimensions to the embodiments described below.

[0015] In a preferred embodiment, the device comprises at least one elongated hole for securing the reflector plate to the upper area of ​​the baking chamber. In preferred embodiments, the device has several elongated holes along the width of the plate. These allow the device to be adjusted in the upper area of ​​the baking chamber. Here, the distance between the heating element and the side of the angled reflector plate facing the oven door is primarily adjusted.

[0016] The reflector plate is detachably attached to the upper section of the baking chamber via the elongated holes. In one embodiment, the reflector plate is attached using weld studs. In a preferred embodiment, the reflector plate is screwed to the upper section of the baking chamber using a rivet nut. The existing holes in the upper section of the baking chamber can be used to attach the connecting elements. No additional holes need to be created in the upper section of the baking chamber.

[0017] In a special embodiment, the reflector plate is clamped directly to the heating element.

[0018] The removable design of the device allows for easy replacement and cleaning of the reflector plate. Furthermore, in certain designs, it is important to ensure that the reflector plate can withstand temperatures of > 450°C. Pyrolysis, the high temperatures, result in a self-cleaning effect on the reflector plate, which reduces additional maintenance and cleaning requirements.

[0019] In embodiments, the material of the reflector sheet is formed as a hot-dip aluminized sheet, for example made of hot-dip aluminized steel with an aluminum-silicon coating.

[0020] According to the invention, the reflector plate forms a variable angle. This angle is formed between the fastening side of the plate at the upper area of ​​the baking chamber and the side of the plate facing the oven door. According to the invention, this angle should be >90°.

[0021] In some embodiments, the angle is between 90° and 150°. In preferred embodiments, the angle is between 120° and 150°.

[0022] In some designs, the reflector plate extends across the entire width of the oven interior. In special designs, the reflector plate can also be positioned only on the left and right sides of the oven cavity. In special designs, the reflector plate can be mounted centrally in the oven cavity without covering the entire oven cavity.

[0023] In one embodiment, the device for redirecting the heat radiation emanating from the heating elements can be mounted in front of each heating element. In preferred embodiments, the device is to be positioned in front of the first heating element emanating from the oven door.

[0024] For the realization of the invention, it is also expedient to combine the above-described inventive embodiments, embodiments and features of the claims. Examples of implementation

[0025] The invention will be explained in more detail below using an exemplary embodiment. This exemplary embodiment relates to a device for better directing the heat radiation emanating from the heating elements onto the baked goods and is intended to describe the invention without limiting it.

[0026] The invention is explained in more detail with the aid of drawings. Fig. 1 a perspective view of the reflector plate Fig. 2 a side view of the reflector plate Fig. 3 the installation position of the reflector plate in a perspective view of the deck oven Fig. 4 a side view of the installation position of the reflector plate in a deck oven with an enlarged section of the exact installation position of the reflector plate

[0027] Fig. Figure 1 shows, in a first exemplary embodiment, a device for homogenizing heat distribution in baking ovens, which is designed as a reflector plate 1 with a total of four elongated holes 2 distributed across the entire width of the reflector plate 1. The elongated holes 2 do not have to be mounted at the same distance from one another across the entire width of the reflector plate. In this exemplary embodiment, the reflector plate is arranged at the upper area of ​​the baking chamber 9 with an additional connecting element, such as a screw or a welding stud. Furthermore, the distance between the reflector plate 1 and the heating elements 5 can be adjusted via the elongated holes. The recesses 3 are provided to prevent collision with the heating element holders 7, which run at right angles to the reflector plate.

[0028] Fig. Figure 2 shows the angle of the reflector plate 1 in a second embodiment. The horizontal section of the reflector plate 1A is arranged at the top of the baking chamber. The angle is formed as shown in Fig. 2, the angle 4 formed between the horizontally extending section of the reflector sheet 1A and the angled section 1B. In this specific embodiment, the angle 4 formed between section 1A and section 1B is 130°. However, it is also conceivable that the angle 4 formed lies between 90° and 150°. Preferably, the angle is between 120° and 150°.

[0029] Fig. 3 shows in a further embodiment the installation position of the reflector plate 1 in a deck oven 5. In this Fig. 3, only the front angled section 1B of the reflector plate is visible. Furthermore, the heating elements 6 located behind the reflector plate 1 and the heating element holders 7 running at right angles to the radiation shield are visible. Furthermore, this embodiment shows that the reflector plate 1's position in front of the first heating element 6 and the oven door 8 prevents direct contact with the heating elements 6 when reaching into the deck oven 5.

[0030] Fig.Figure 4 shows a side view of the installation position of the reflector plate in a deck oven 5 in another exemplary embodiment. In this exemplary embodiment, the reflector plate 1 is arranged in front of the first heating element 6. Furthermore, the enlarged side view B clearly shows the angle 4 of the reflector plate and how the reflector plate 1 shields the front heating element 6 from the front of the baking chamber 9. In this exemplary embodiment, the reflector plate 1 is arranged in the upper area of ​​the baking chamber via a screw and a nut 10. Reference symbol 1 reflector plate 1A Horizontal section 1B Angled section 2 long holes 3 recess 4 reflector plate angles 5-deck oven 6 Heating element 7 heating element holders 8 Stove glass or stove flap 9 Baking chamber 10 Connecting element QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 20 2021 105 432 U1

[0003]

Claims

[1] Device for homogenising the heat distribution in ovens, which is arranged in an oven with at least one baking chamber between the oven door or oven door and at least one heating element, characterized by that the device is designed to shield the oven door from the heat radiation emanating from the heating element and to direct the heat radiation emanating from the heating element onto the baked goods. [2] Device according to claim 1, characterized by that the device is located in the upper part of the oven interior. [3] Device according to claim 1 or 2, according to which the device is arranged to prevent contact with the heating element when the oven door is open. [4] Device according to claims 1 to 3, characterized bythat the device forms a variable angle between the fastening in the upper area and the oven door in order to ensure adaptation to different sizes. [5] Device according to claim 4, characterized by that the variable angle of the device between the part of the device attached to the upper area of ​​the oven and the part of the device facing the oven door forms an angle between 90° and 150°, preferably between 120° and 150°. [6] Device according to one of the preceding claims, characterized by that the device is detachably arranged in the upper area of ​​the interior. [7] Device according to claim 6, characterized by that the device is arranged on the heating element. [8] Use of a device according to one of the preceding claims for homogenising the heat distribution.

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