An oven with a mechanical thermostat

Abstract

Invention relates to an oven comprising a control panel (40), a mechanical thermostat (10) provided in an inner part of the control panel (40); a control rod (20) extending outward from the mechanical thermostat (10). The oven further comprises an angular position sensor (30) engaging with the control rod (20); a relay (60) configured to transmit the position signal generated by the rotation of the angular position sensor (30) when the control rod (20) is rotated in a cooking mode, and to display a temperature value on a display (44) on the control panel (40).

Description

[0001] OVEN WITH A MECHANICAL THERMOSTAT

[0002] TECHNICAL FIELD

[0003] The present invention relates to an oven with a mechanical thermostat and an indicator displaying the set temperature value.

[0004] BACKGROUND ART

[0005] In cooking devices, particularly in household ovens, various cooking modes or cooking temperatures are used according to the type of food to be cooked. The control of the internal cooking temperature of the oven is usually provided through an electronic circuit created by electronic circuit elements. However, the assembly of electronic circuit elements takes a long time and is costly.

[0006] EP3019925A1 discloses a knob provided on the oven. According to the subject matter invention, an oven comprises a cooking chamber where the cooking process is carried out, a heater for cooking food items placed in the cooking chamber, and a thermostat controlling the operation of the oven. A control unit regulates cooking parameters such as temperature and duration according to the type of food to be cooked and energy savings at different temperature values set by the user, such as 160°C, 180°C, and 200°C.

[0007] BRIEF DESCRIPTION OF THE INVENTION

[0008] The object of the invention is to measure the internal temperature value of the cooking device by means of a mechanical thermostat.

[0009] In order to achieve the mentioned objective, the invention relates to an oven comprising a control panel, a mechanical thermostat provided in an inner part of the control panel; and a control rod extending outward from the mechanical thermostat. The oven includes an angular position sensor engaged with the control rod; a relay configured to receive a position signal generated by the rotation of the angular position sensor when the control rod is rotated in a cooking mode, and to display a temperature value on a screen on the control panel. This allows the internal temperature value of the oven to be accurately transmitted to the user without using an electronic circuit, and also enables the user to change the internal temperature value as desired. In a preferred embodiment of the invention, the angular position sensor is directly engaged with the control rod. This ensures precise and accurate measurement and transmission of the internal temperature of the oven to the user.

[0010] In a preferred embodiment of the invention, the angular position sensor includes an encoder. This allows the position information to be converted into voltage information.

[0011] In a preferred embodiment of the invention, the angular position sensor is co-axially arranged with the control rod and wraps around it. This ensures the transmission of the movement of the control rod to the angular position sensor.

[0012] In a preferred embodiment of the invention, the screen is provided on an outer part of the control panel. This allows the internal temperature value of the oven to be easily read by the user.

[0013] In a preferred embodiment of the invention, the angular position sensor does not transmit an electrical signal to the relay in a closed position where no electrical signal is transmitted. This prevents the relay from operating when the oven is closed, thus saving energy.

[0014] In a preferred embodiment of the invention, the angular position sensor configures the relay to supply voltage linearly changing between minimum and maximum values. This ensures precise measurement of voltage values and maintains constant change intervals.

[0015] In a preferred embodiment of the invention, a rotary knob is provided that covers the angular position sensor on a free end of the control rod. This allows the user to easily change the internal temperature value of the oven.

[0016] In a preferred application of the invention, the method includes the steps of: rotating the control rod from a first position to a second position; rotating the angular position sensor as the control rod rotates; converting the angular information obtained from the rotation of the angular position sensor into an electrical signal by the relay; and converting the electrical signal transmitted to the relay into a readable temperature value on the screen. This control method allows the internal temperature of the oven to be detected and displayed to the user via the screen.

[0017] In a preferred application of the invention, the electrical signal includes voltage information supplied from an electrical source to an encoder of the angular position sensor.

[0018] BRIEF DESCRIPTION OF THE FIGURES

[0019] Figure 1 shows a perspective view of the control panel arranged on the cooking device.

[0020] Figure 2 shows a perspective view of the mechanical thermostat subject to the invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] In this detailed description, the subject matter of the invention is explained without any restriction and is only meant to better understand the topic, referencing examples.

[0022] Figure 1 shows a control panel arranged on the cooking device in perspective. A control panel (40) is positioned on a wall of the oven that is visible to the user. The control panel (40) has a rectangular-like shape. On the outer surface (41 ) of the control panel (40), there is a rotary knob (42) that can be rotated by the user. The rotary knob (42) has a circular shape. Near the center point of the control panel (40), there is a display (44). On the display (44), the inner temperature of the oven can be seen by the user in working mode. Corresponding to the lower part of the display (44), there is a strip (46) positioned on the outer surface (41 ) of the control panel (40). On the control panel (40), there are multiple symbols (48) that show the working modes of the oven. On the back part of the control panel (40), there is a relay (60) that makes the inner temperature of the oven visible on the display (44).

[0023] Figure 2 shows the subject matter mechanical thermostat in perspective. On the back part of the control panel (40) shown in Figure 1 , and connected to the rotary knob (42), there is a mechanical thermostat (10). The mechanical thermostat (10) engages with multiple connecting elements (16) positioned on the upper wall (12) inside the oven. In the preferred structure, there are two connecting elements (16) provided at a distance from each other, in a hook-like form. On the front wall (14) of the mechanical thermostat (10), there is a control rod (20). The control rod (20) engages with the front wall (14) of the mechanical thermostat (10) from a near end (22). In the preferred structure, the control rod (20) extends outward in a half-cylindrical form from its near end (22). An angular position sensor (30) is surrounding the control rod (20). The angular position sensor (30) is positioned concentrically with and surrounds the control rod (20). Inside the angular position sensor (30), there is an encoder (32) configured to generate voltage information. The angular position sensor (30) is connected to an electrical source (50) to transmit electrical signals.

[0024] In the working principle of the oven, the temperature inside the oven is changed by rotating the control rod (20) from a first position to a second position with the rotary knob (42). As the control rod (20) rotates, it also rotates the angular position sensor (30), and an angular information is obtained from the rotation of the angular position sensor (30). The information obtained is converted to an electrical signal by the relay (60). The electrical signal transmitted to the relay (60) is converted to a temperature information value that can be read by the user on the display (44). The electrical signal is calculated with the voltage information supplied from the electrical source (50) to the encoder (32) in the angular position sensor (30). REFERENCE NUMBERS

[0025] 10 Thermostat

[0026] 12 Upper Wall

[0027] 14 Front Wall

[0028] 16 Connection Element

[0029] 20 Control rod

[0030] 22 Near End

[0031] 24 Free End

[0032] 30 Angular Position Sensor

[0033] 32 Encoder

[0034] 40 Control Panel

[0035] 41 Outer Surface

[0036] 42 Rotary Knob

[0037] 44 Display

[0038] 46 Strip

[0039] 48 Symbol

[0040] 50 Electrical Source

[0041] 60 Relay

Claims

CLAIMS1- An oven comprising a control panel (40), a mechanical thermostat (10) provided in an inner part of the control panel (40); a control rod (20) extending outward from the mechanical thermostat (10), characterized in that an angular position sensor (30) engaging with the control rod (20); a relay (60) configured to transmit the position signal generated by the rotation of the angular position sensor (30) when the control rod (20) is rotated in a cooking mode, and to display a temperature value on a display (44) on the control panel (40).2- An oven according to claim 1 , wherein the angular position sensor (30) is directly engaged with the control rod (20).3- An oven according to claim 2, wherein the angular position sensor (30) is having an encoder (32).4- An oven according to claim 3, wherein the angular position sensor (30) is adjusted to be coaxial with and surround the control rod (20).5- An oven according to claims 2-3, wherein the display (44) is provided on an outer surface (41) of the control panel (40).6- An oven according to claims 2-4, wherein the angular position sensor (30) is configured to not transmit an electrical signal to the relay (60) in a closed position where no electrical signal is transmitted.7- An oven according to any of the preceding claims, wherein the angular position sensor (30) is configured to feed voltage to the relay (60) in a linearly changing manner between minimum and maximum values.8- An oven according to any of the preceding claims, wherein a rotary knob (42) provided on a free end (24) of the control rod (20) to cover the angular position sensor (30).9- An oven control method according to any of the preceding claims, comprising the steps of rotating the control rod (20) from a first position to a second position; rotating the angular position sensor (30) as the control rod (20) rotates; converting the angularinformation obtained by the rotation of the angular position sensor (30) into an electrical signal by the relay (60); and converting the electrical signal transmitted to the relay (60) into a readable temperature value on the display (44). 10- An oven control method according to claim 8, wherein the electrical signal includes voltage information supplied from an electrical source (50) to an encoder (32) of the angular position sensor (30).

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