Thick film baking tray

Abstract

The utility model relates to the technical field of cooking electric appliances, and provides a thick film baking tray which is characterized in that a baking tray assembly is detachably arranged on a base, a thermocouple outgoing line and a thermocouple weak current contact piece are arranged on the baking tray assembly, a thermocouple weak current end and a temperature sensor used for detecting the temperature of the thermocouple weak current end are arranged on the base, and the baking tray assembly is arranged on the base. Conductive contact is formed between the thermocouple weak current contact piece and the thermocouple weak current end, a thermocouple tail end is formed, and the thermocouple head end is fixed in the baking tray assembly so that the temperature value of the baking tray assembly can be detected through the thermocouple head end and the thermocouple tail end in the heating process of the baking tray assembly. The thermocouple is arranged between the baking tray assembly and the base, the head end of the thermocouple is fixed in the baking tray assembly, the tail end of the thermocouple is fixed on the base, the base is provided with the temperature sensor used for detecting the tail end of the thermocouple, in the baking tray heating process, the temperature value of the cold end of the thermocouple can be actually obtained, and temperature detection of the baking tray is accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooking electric appliances, and particularly relates to a thick film baking tray. BACKGROUND

[0002] The principle of thermocouple detecting temperature is mainly based on thermoelectric effect, that is, when two different material metals form a closed loop, if the temperature of two endpoints (the hot end and the cold end of the thermocouple) is different, a certain electromotive force will be generated, forming an electric current, and by measuring the electromotive force in the thermocouple loop, the temperature of the measured medium can be calculated.

[0003] However, the cold end temperature of the thermocouple will change during the heating process of the baking tray, and if the cold end temperature of the thermocouple is not measured, the default cold end temperature of the thermocouple during the detection process is a constant value, such as 26 degrees Celsius (room temperature), which leads to inaccurate temperature detection of the baking tray. INVENTION CONTENTS

[0004] The utility model provides a kind of thick film baking tray, thermocouple is equipped between baking tray assembly and base, the first end of thermocouple is fixed in baking tray assembly, the end of thermocouple is fixed on base, and temperature sensor for detecting the end of thermocouple is equipped on base, during the heating process of baking tray, the cold end temperature value of thermocouple can be actually obtained, and the temperature detection of baking tray is accurate.

[0005] A thick film baking tray designed for this purpose includes a disc body provided on a baking tray assembly, the baking tray assembly is detachably mounted on a base, the baking tray assembly is provided with a thermocouple lead-out wire and a thermocouple weak electric contact, the base is provided with a thermocouple weak electric end and a temperature sensor for detecting the temperature of the thermocouple weak electric end, the end of the thermocouple lead-out wire is electrically connected with the thermocouple weak electric contact, the baking tray assembly is placed on the base, and a conductive contact is formed between the thermocouple weak electric contact and the thermocouple weak electric end to form the end of the thermocouple, the first end of the thermocouple is fixed in the baking tray assembly to detect the temperature value of the baking tray assembly through the first end of the thermocouple and the end of the thermocouple during the heating process of the baking tray assembly.

[0006] The baking tray assembly includes a baking tray, and the bottom of the baking tray is provided with an electric heating thick film, and one end of the thermocouple lead-out wire is fixed on the electric heating thick film at the bottom of the baking tray.

[0007] An electric coupling connector is provided between the baking tray assembly and the base, the baking tray assembly and the base are coupled and connected through the electric coupling connector, the baking tray assembly is detachably mounted on the base through the electric coupling connector, the baking tray assembly is also provided with an electric heating thick film, and a conductive contact is formed between the electric coupling connector and the electric heating thick film on the baking tray assembly.

[0008] The electrical coupling connector includes an upper coupler disposed on the bottom of the baking tray assembly and a lower coupler disposed on the base. The baking tray assembly is placed on the base, and the upper coupler and the lower coupler are coupled together. The baking tray assembly is detached from the base, and the upper coupler and the lower coupler are separated. The strong electrode, the electrically heated thick film, and the thermocouple lead of the upper coupler are sequentially electrically connected to form the thermocouple head.

[0009] The base is equipped with an electrical compartment, and the electrical compartment is equipped with a circuit board. The thermocouple low-voltage terminal, temperature sensor and lower coupler are respectively electrically connected to the circuit board.

[0010] The baking tray assembly includes a baking tray with an electrically heated thick film and a fixing plate for supporting the baking tray. The fixing plate is provided with an upper coupler that is electrically coupled to the base.

[0011] The baking pan and the fixed plate are provided with heat-insulating ceramic.

[0012] The thermocouple weak current contact is disposed on the upper coupler housing, with one end of the thermocouple weak current contact extending out of the outer side of the upper coupler housing. The upper coupler housing is disposed on the bottom of the fixed plate, and a sealing element is provided between the upper coupler housing and the fixed plate. A temperature controller is provided inside the upper coupler housing.

[0013] The baking tray assembly and the base are provided with two temperature measuring zones, a first temperature measuring zone and a second temperature measuring zone, which are spaced apart from each other. Each temperature measuring zone is provided with a thermocouple weak electrical contact and a thermocouple weak electrical terminal, a temperature sensor for detecting the temperature of the thermocouple weak electrical terminal, and a temperature controller that works in conjunction with the thermocouple.

[0014] The base includes a seat body and a panel supported on the seat body. The panel is provided with a lower coupler for forming an electrical coupling connection with the baking tray assembly. The housing of the lower coupler is fixed on the panel. The weak electrical end of the thermocouple and the temperature sensor are disposed on the panel. The weak electrical end of the thermocouple extends out of the panel, and the temperature measuring end of the temperature sensor extends out of the panel.

[0015] The beneficial technical effects of this utility model are as follows:

[0016] A thermocouple is installed between the baking tray assembly and the base. The first end of the thermocouple is fixed inside the baking tray assembly, and the second end is fixed on the base. The base is equipped with a temperature sensor for detecting the temperature of the thermocouple end. During the heating process of the baking tray, the actual temperature value of the cold junction of the thermocouple can be obtained, and the temperature detection of the baking tray is accurate.

[0017] The baking tray assembly and the base are electrically connected via an electrical coupler. A thermocouple low-voltage contact and a thermocouple low-voltage terminal are provided between the baking tray assembly and the base. The baking tray assembly is placed on the base, and a conductive contact is formed between the thermocouple low-voltage contact and the thermocouple low-voltage terminal. No lead wires are required between the baking tray assembly and the base, which facilitates the installation and removal of the baking tray assembly from the base.

[0018] The baking pan assembly and the base are provided with two spaced-apart temperature measuring zones, namely the first temperature measuring zone and the second temperature measuring zone, which can detect the heating temperature at different positions of the baking pan assembly. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of a baking tray assembly placed on a base according to an embodiment of the present invention.

[0021] Figure 2 This is an exploded view of the assembly structure of a baking tray assembly according to an embodiment of the present invention.

[0022] Figure 3 This is an exploded view of the assembly structure of the baking tray assembly and the base according to an embodiment of the present invention.

[0023] Figure 4 This is a cross-sectional structural diagram of a baking pan assembly according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the exploded cross-sectional structure of the baking tray assembly and the base according to an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of a baking tray assembly disassembled onto a base according to an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the bottom structure of a baking pan assembly according to an embodiment of the present invention. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] See Figures 1-7A thick-film baking pan includes a pan body disposed on a baking pan assembly 1. The baking pan assembly 1 is detachably mounted on a base 2. The baking pan assembly 1 is provided with thermocouple leads and thermocouple weak electrical contacts 3. The base 2 is provided with a thermocouple weak electrical terminal 4 and a temperature sensor 5 for detecting the temperature of the thermocouple weak electrical terminal 4. The end of the thermocouple leads is electrically connected to the thermocouple weak electrical contacts 3. The baking pan assembly 1 is placed on the base 2, and a conductive contact is formed between the thermocouple weak electrical contacts 3 and the thermocouple weak electrical terminal 4 to form a thermocouple end. The thermocouple tip is fixed inside the baking pan assembly 1 so that the temperature value of the baking pan assembly 1 can be detected through the thermocouple tip and thermocouple end during the heating process of the baking pan assembly 1.

[0029] A thermocouple is provided between the baking tray assembly 1 and the base 2. The first end of the thermocouple is fixed inside the baking tray assembly 1, and the second end of the thermocouple is fixed on the base 2. The base 2 is provided with a temperature sensor 5 for detecting the temperature of the thermocouple end. During the heating process of the baking tray, the temperature value of the cold junction of the thermocouple can be obtained in reality, and the temperature detection of the baking tray is accurate.

[0030] In this embodiment, the temperature sensor 5 is a thermistor.

[0031] In this embodiment, the baking tray assembly 1 is provided with a positioning post 21 at the bottom and the base 2 is provided with a positioning groove 22. When the baking tray assembly 1 is placed on the base 2, the positioning post 21 is limited to the positioning groove 22, so as to prevent the baking tray assembly 1 from moving left and right on the base 2 when it is placed on the base 2.

[0032] The baking tray assembly 1 includes a baking tray 6, with an electrically heated thick film 7 at the bottom of the baking tray 6, and one end of a thermocouple lead wire fixed to the electrically heated thick film 7 at the bottom of the baking tray 6.

[0033] In this embodiment, the electrically heated thick film 7 is a prior art technique, and it is fixed to the bottom of the baking pan 6 by screws. One end of the thermocouple lead is fixed to the electrically heated thick film 7 by welding.

[0034] An electrical coupling connector 8 is provided between the baking tray assembly 1 and the base 2. The baking tray assembly 1 and the base 2 are coupled together through the electrical coupling connector 8. The baking tray assembly 1 is detachably installed on the base 2 through the electrical coupling connector 8. The baking tray assembly 1 is also provided with an electric heating thick film 7. The strong electrode of the electrical coupling connector 8 on the baking tray assembly 1 forms a conductive contact with the electric heating thick film 7.

[0035] The electrical coupling connector 8 includes an upper coupler 9 disposed on the bottom of the baking tray assembly 1 and a lower coupler 10 disposed on the base 2. The baking tray assembly 1 is placed on the base 2, and the upper coupler 9 and the lower coupler 10 are coupled together. The baking tray assembly 1 is disassembled from the base 2, and the upper coupler 9 and the lower coupler 10 are separated. The strong electrode of the upper coupler 9, the electrically heated thick film 7, and the thermocouple lead wire are sequentially electrically connected to form the thermocouple head.

[0036] In this embodiment, a conductive contact is formed between the upper electrode of the upper coupler 9 and the electrically heated thick film 7.

[0037] In this embodiment, the lower coupler 10 is provided with an electrode insertion hole, and the upper coupler 9 is provided with a lower electrode for inserting into the electrode insertion hole.

[0038] The base 2 is provided with an electrical compartment 11, and the electrical compartment 11 is provided with a circuit board 12. The thermocouple weak current terminal 4, temperature sensor 5 and lower coupler 10 are respectively electrically connected to the circuit board 12.

[0039] The baking tray assembly 1 includes a baking tray 6 with an electrically heated thick film 7 and a fixing plate 13 for supporting the baking tray 6. The fixing plate 13 is provided with an upper coupler 9 that is electrically coupled to the base 2.

[0040] A heat-insulating ceramic 14 is provided between the baking pan 6 and the fixed plate 13 to prevent the heat of the baking pan 6 from being directly transferred to the fixed plate 13 during the heating process, and further to prevent the heat of the baking pan 6 from being directly transferred to the base 2 through the fixed plate 13.

[0041] The thermocouple weak current contact 3 is disposed on the housing of the upper coupler 9. One end of the thermocouple weak current contact 3 extends out of the outer side of the housing of the upper coupler 9. The housing of the upper coupler 9 is disposed on the bottom of the fixed plate 13. A sealing element 15 is provided between the housing of the upper coupler 9 and the fixed plate 13. A temperature controller 16 is provided inside the housing of the upper coupler 9.

[0042] In this embodiment, the baking tray 6 and the fixed plate 13 are fixedly connected by screws or welding. The upper coupler 9 housing is provided with a sealing groove for installing the sealing element 15 to prevent liquid from entering the upper coupler 9 housing through the installation gap between the fixed plate 13 and the upper coupler 9 housing.

[0043] In this embodiment, the housing of the upper coupler 9 is fixed to the bottom of the fixing plate 13 by screws.

[0044] The baking tray assembly 1 and the base 2 are provided with two spaced-apart first temperature measuring areas 17 and second temperature measuring areas 18. The first temperature measuring area 17 and the second temperature measuring area 18 are each provided with a thermocouple weak contact 3 and a thermocouple weak terminal 4, a temperature sensor 5 for detecting the temperature of the thermocouple weak terminal 4, and a temperature controller 16 that works in conjunction with the thermocouple.

[0045] In this embodiment, the thermocouple weak terminal 4 generates heat during the operation of the baking pan assembly 1. The heat is transferred to the temperature sensor 5 through thermal radiation. When the baking pan assembly 1 is placed on the base 2, the housing of the upper coupler 9 is closed on the mounting box 23 of the base 2, so that the first temperature measuring area 17 and the second temperature measuring area 18 respectively form closed spaces. When the temperature sensor 5 measures, it prevents the heat of the thermocouple weak terminal 4 from spreading around.

[0046] In this embodiment, the first temperature measuring zone 17 may be provided with one thermocouple weak contact 3 and one thermocouple weak terminal 4, and the second temperature measuring zone 18 may be provided with one thermocouple weak contact 3 and one thermocouple weak terminal 4. Alternatively, the first temperature measuring zone 17 may be provided with two or more thermocouple weak contacts 3 and two or more thermocouple weak terminals 4, and the second temperature measuring zone 18 may be provided with two or more thermocouple weak contacts 3 and two or more thermocouple weak terminals 4.

[0047] The base 2 includes a seat 19 and a panel 20 supported on the seat 19. The panel 20 is provided with a lower coupler 10 for forming an electrical coupling connection with the baking tray assembly 1. The housing of the lower coupler 10 is fixed on the panel 20. The thermocouple weak electrical end 4 and the temperature sensor 5 are disposed on the panel 20. The end of the thermocouple weak electrical end 4 extends out of the panel 20, and the temperature measuring end of the temperature sensor 5 extends out of the panel 20.

[0048] In this embodiment, the panel 20 is provided with a mounting groove for assembling the mounting box 23, and the mounting box 23 is provided with a mounting clearance for installing the lower coupler 10; the mounting box 23 is provided with two temperature sensors 5 spaced apart from each other, the temperature probes of the temperature sensors 5 extend out of the mounting box 23, the bottom of the mounting box 23 is provided with a bracket 24 for fixing the bottom of the temperature sensors 5, the bracket 24 is fixed to the bottom of the mounting box 23 by screws, the end of the thermocouple weak terminal 4 extends out of the mounting box 23, the bottom of the thermocouple weak terminal 4 is supported on the bracket 24, and the mounting box 23 is provided with through holes for the temperature sensors 5 and the thermocouple weak terminal 4 to extend out.

[0049] In this embodiment, the base 19 is provided with a support frame for supporting the panel 20, and the base 19 is provided with a mounting slot for installing the control box. The control circuit board inside the control box is electrically connected to the circuit board 12.

[0050] In this embodiment, when the baking tray assembly 1 is placed on the base 2, the base 2 is provided with a plug for connecting one end of the power cord, and the plug of the other end of the power cord is inserted into the socket. When the socket switch is turned on, the upper coupler 9 is electrically connected to the electric heating film 7 through the (high voltage) electrode to supply power to the electric heating film 7. A temperature controller 16 is provided inside the housing of the upper coupler 9. The temperature controller 16 is attached to the bottom of the electric heating film 7. When the temperature of the baking tray 6 exceeds the limit value, the temperature controller 16 is disconnected, thereby causing the electric heating film 7 to stop working.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

[0052] In the above description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to fixed connections using screws, rivets, or welding; detachable connections; or connections formed by metal processing (die casting, deep drawing, lathe machining, etc.) or injection molding; they can also be mechanical or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In the above description of this application, unless otherwise expressly specified and limited, the use of terms such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A thick-film baking pan, comprising a pan body disposed on a baking pan assembly (1), characterized in that: The baking tray assembly (1) is detachably installed on the base (2). A thermocouple is provided between the baking tray assembly (1) and the base (2). The first end of the thermocouple is fixed inside the baking tray assembly (1), and the second end of the thermocouple is fixed on the base (2). A temperature sensor (5) for detecting the temperature of the thermocouple end is provided on the base. The baking tray assembly (1) is provided with thermocouple lead wires and thermocouple weak contact (3). The base (2) is provided with thermocouple weak end (4) and temperature sensor (5) for detecting the temperature of thermocouple weak end (4). The end of the thermocouple lead wire is electrically connected to the thermocouple weak contact (3). The baking tray assembly (1) is placed on the base (2). The thermocouple weak contact (3) and the thermocouple weak end (4) form a conductive contact and form a thermocouple end. The thermocouple head is fixed inside the baking tray assembly (1) so that the temperature value of the baking tray assembly (1) can be detected by the thermocouple head and thermocouple end during the heating process of the baking tray assembly (1).

2. The thick film baking pan according to claim 1, characterized in that: The baking pan assembly (1) includes a baking pan (6), with an electric heating film (7) at the bottom of the baking pan (6), and one end of the thermocouple lead wire is fixed on the electric heating film (7) at the bottom of the baking pan (6).

3. The thick film baking pan according to claim 1, characterized in that: An electrical coupling connector (8) is provided between the baking tray assembly (1) and the base (2). The baking tray assembly (1) and the base (2) are coupled together through the electrical coupling connector (8). The baking tray assembly (1) is detachably installed on the base (2) through the electrical coupling connector (8). An electric heating thick film (7) is also provided on the baking tray assembly (1). The strong electrode of the electrical coupling connector (8) on the baking tray assembly (1) forms a conductive contact with the electric heating thick film (7).

4. The thick film baking pan according to claim 3, characterized in that: The electrical coupling connector (8) includes an upper coupler (9) disposed on the bottom of the baking tray assembly (1) and a lower coupler (10) disposed on the base (2). The baking tray assembly (1) is placed on the base (2), and the upper coupler (9) and the lower coupler (10) are coupled together. The baking tray assembly (1) is disassembled from the base (2), and the upper coupler (9) and the lower coupler (10) are separated. The strong electrode, the electrically heated thick film (7) of the upper coupler (9) are electrically connected to the thermocouple lead wire in sequence to form the thermocouple head end.

5. The thick film baking pan according to claim 4, characterized in that: The base (2) is provided with an electrical compartment (11), and the electrical compartment (11) is provided with a circuit board (12). The thermocouple weak terminal (4), temperature sensor (5) and lower coupler (10) are respectively electrically connected to the circuit board (12).

6. The thick film baking pan according to claim 1, characterized in that: The baking tray assembly (1) includes a baking tray (6) with an electrically heated thick film (7) and a fixing plate (13) for supporting the baking tray (6). The fixing plate (13) is provided with an upper coupler (9) that is electrically coupled to the base (2).

7. The thick film baking pan according to claim 6, characterized in that: A heat-insulating ceramic (14) is provided between the baking pan (6) and the fixed plate (13).

8. The thick film baking pan according to claim 6, characterized in that: The thermocouple weak contact (3) is set on the housing of the upper coupler (9). One end of the thermocouple weak contact (3) extends out of the outer side of the housing of the upper coupler (9). The housing of the upper coupler (9) is set on the bottom of the fixed plate (13). A sealing element (15) is provided between the housing of the upper coupler (9) and the fixed plate (13). A temperature controller (16) is provided inside the housing of the upper coupler (9).

9. The thick film baking pan according to claim 1, characterized in that: The baking tray assembly (1) and the base (2) are provided with two spaced-apart first temperature measuring area (17) and second temperature measuring area (18). The first temperature measuring area (17) and the second temperature measuring area (18) are provided with thermocouple weak contact (3) and thermocouple weak end (4), temperature sensor (5) for detecting the temperature of thermocouple weak end (4), and temperature controller (16) that works with the thermocouple.

10. The thick film baking pan according to claim 1, characterized in that: The base (2) includes a seat (19) and a panel (20) supported on the seat (19). The panel (20) is provided with a lower coupler (10) for forming an electrical coupling connection with the baking tray assembly (1). The housing of the lower coupler (10) is fixed on the panel (20). The thermocouple weak end (4) and the temperature sensor (5) are set on the panel (20). The end of the thermocouple weak end (4) extends out of the panel (20), and the temperature measuring end of the temperature sensor (5) extends out of the panel (20).

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