Door assembly for a cooking machine and cooking machine having such a door assembly

Abstract

The present invention relates to a door assembly for a cooking machine, particularly an automatic door assembly with an electronic lock, and a cooking machine equipped with such a door assembly. The door assembly comprises a screen assembly including a touch screen, a touch screen mounting bracket, and a mounting bracket rear cover; a door frame assembly including an outer glass, an outer glass mounting bracket, an inner glass, and an outer glass mounting bracket cover; a control system including an encoder and a control panel mounted on the touch screen mounting bracket; and an electronic lock system including a micro switch, a solenoid valve, and an electronic lock push rod mounted on the door assembly.

Description

Technical Field

[0001] The present invention relates to a door assembly for a cooking machine and a cooking machine with such a door assembly, and in particular to an automatic door assembly with an electronic lock, which is used for ovens, steamers, steam ovens, microwave ovens and the like. Background Art

[0002] As people's living standards improve, their demands for food processing become increasingly demanding. Many foods require multiple cooking steps, such as steaming, baking, and microwaving. Therefore, to meet market demand, cooking machines integrating steaming, baking, and / or microwaving functions are now available on the market. These existing cooking machines typically include a control system, including a controller.

[0003] However, during the cooking process of these cooking machines, users often need to open and close the machine's door multiple times to place the tray containing food into the machine's inner cavity or remove it from the inner cavity, as well as to perform various processing and operations on the food. In this case, when the door of the cooking machine is open, the user often cannot conveniently close the door after placing the food and / or utensils into the inner cavity of the machine. In addition, when the door of the cooking machine is closed and the machine starts to cook the food, the door of the cooking machine may accidentally open suddenly due to collision, movement, etc., which puts the user at risk of injury, burns, etc., and the machine may also be damaged. In addition, the sudden opening of the cooking machine's door may also cause heat, steam, microwave leakage, and even lead to risks such as electric leakage. In addition, the repeated opening and closing of the cooking machine's door may cause unnecessary power loss and unnecessarily extend the cooking time of the food.

[0004] Therefore, it is necessary to provide a door assembly that can at least partially overcome the above-mentioned shortcomings and a cooking machine using the door assembly. The desired automatic door assembly should have the advantages of convenient and fast operation and safe use, and such a cooking machine should also have the advantages of short cooking time, low energy consumption, safe and convenient use. Summary of the Invention

[0005] An object of the present invention is to provide a door assembly for a cooking machine, in particular an automatic door assembly with an electronic lock, and a cooking machine with such a door assembly, which can at least solve some of the deficiencies of products in the prior art.

[0006] The technical solution adopted by the present invention to solve the technical problem is to provide a door assembly for a cooking machine, which includes: a screen assembly, the screen assembly includes a touch screen, a touch screen fixing frame and a fixing frame back cover; a door frame assembly, the door frame assembly includes outer glass, outer glass fixing parts, inner glass and outer glass fixing part cover; a control system, the control system includes an encoder and a control panel arranged at the touch screen fixing frame; and an electronic lock system, the electronic lock system includes a micro switch, a solenoid valve and an electronic lock push rod arranged at the door assembly, wherein the micro switch also includes a micro switch pull buckle arranged at the door frame assembly, wherein when the door assembly is closed and the cooking machine is started, the solenoid valve pushes the electronic lock push rod to press against the micro switch pull buckle so that the door assembly cannot be opened when the cooking machine is cooking, and when the cooking machine finishes cooking, the solenoid valve pulls the electronic lock push rod back.

[0007] According to a preferred embodiment of the present invention, the control system further includes a transmitter and a receiver disposed on the touch screen fixing bracket.

[0008] According to another preferred embodiment of the present invention, a button is provided on the door frame assembly.

[0009] According to another preferred embodiment of the present invention, the key includes a key cover and a key plate, and the key is arranged on the upper right part of the outer glass fixing member through a key plate base.

[0010] According to another preferred embodiment of the present invention, automatic push rods and hydraulic rods are installed on both sides of the cooking machine.

[0011] According to another preferred embodiment of the present invention, the micro switch further comprises a micro switch buckle rotating column, which acts on the micro switch buckle.

[0012] According to another preferred embodiment of the present invention, a knob is provided at the encoder, and is mounted to the touch screen fixing bracket via a mounting member.

[0013] According to another preferred embodiment of the present invention, it is characterized in that the control panel is an Android board.

[0014] According to another aspect of the invention, the invention relates to a cooking machine having a door assembly according to the invention.

[0015] According to another preferred embodiment of the present invention, the cooking machine is an oven, a steamer, a steam oven or a microwave oven.

[0016] Compared to existing technologies, the automatic door assembly with an electronic lock and the cooking machine equipped with such a door assembly according to the present invention offer the following key advantages: When the machine is powered on, the user can place their hand under the touchscreen mounting bracket so that the transmitter and receiver sense their hand. Upon receiving this feedback, the control system will operate to push the door open, or the user can directly press a button on the door to open it. When the user places their food and intends to close the door, they can command the control system to close the door by pressing the button again, eliminating the inconvenience of placing their hand under the touchscreen mounting bracket while the door is open. Furthermore, when the door is securely closed, the electronic lock system prevents the machine door from opening during cooking. This makes operation more convenient and efficient, and the machine safer and more reliable.

[0017] The details of one or more embodiments of the present invention will be described in the following description of the drawings and specific embodiments. Other features, objects and advantages of the present invention will be apparent from these descriptions, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will now be described in more detail by way of example with reference to the accompanying drawings, which are not drawn to scale and in which:

[0019] Figure 1 is a perspective schematic diagram of a cooking machine according to an embodiment of the present invention, wherein the cooking machine shown may be in the form of an oven, a steamer, a steam-bake machine, or a microwave-steam-bake machine;

[0020] Figure 2 is a perspective schematic diagram of a cooking machine according to an embodiment of the present invention, wherein the door of the machine opens downward;

[0021] Figure 3 is an exploded view of a door frame assembly of a cooking machine according to an embodiment of the present invention;

[0022] Figure 4 is an exploded view of a screen assembly of a cooking machine according to an embodiment of the present invention;

[0023] Figure 5 is an enlarged rear view of an assembled screen assembly of a cooking machine according to an embodiment of the present invention;

[0024] Figure 6 is an exploded view of an electronic lock assembly, a body assembly, and a water tank assembly of a cooking machine according to an embodiment of the present invention, wherein the hardware body is removed;

[0025] Figure 7 is a perspective schematic diagram of a hardware body of a cooking machine according to an embodiment of the present invention;

[0026] Figure 8 is a right side view of a cooking machine according to an embodiment of the present invention, with the hardware body removed;

[0027] Figure 9 FIG. 1 is a left side view of a cooking machine according to an embodiment of the present invention, with the hardware body removed. DETAILED DESCRIPTION

[0028] The present invention will be described in more detail below with reference to specific embodiments. It should be understood by those skilled in the art that these descriptions merely list some specific embodiments of the present invention and do not limit the present invention and its protection scope.

[0029] Additionally, to facilitate description of the relationship of one component or part to another component or part shown in the drawings, spatially relative terms, such as "lower," "upper," and the like, may be used herein. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned upside down, a component described as being "below" another component or part would then be oriented "above" the other component or part.

[0030] Figure 1 A schematic perspective view of a cooking machine according to an embodiment of the present invention is shown, which may be an oven, a steamer, a steam-bake machine, or a microwave-steam-bake machine. Figure 1 The machine shown in FIG. 1 primarily comprises the following components: a door assembly 1, a main body assembly 2, a cold water tank assembly 3, and a hot water tank assembly 4. Door assembly 1 includes a screen assembly, a door frame assembly, a control system, and an electronic lock system. Cold water tank assembly 3 and hot water tank assembly 4 can be assembled into the base of main body assembly 2. Figure 2 A schematic perspective view of a cooking machine according to an embodiment of the invention is shown with the door of the machine open downwards.

[0031] Figure 3An exploded view of a door frame assembly for a cooking machine according to one embodiment of the present invention is shown. As shown, the door frame assembly comprises an outer glass 101, a partition, and an inner glass 110, arranged in order from outside to inside. The user can observe the cooking machine through the outer and inner glass, allowing them to observe the food during cooking. The partition between the outer and inner glass 101, 110, can be a microwave baffle 108, which shields and isolates microwaves generated by the cooking machine, reducing microwave radiation outside the machine. The door frame assembly also includes an outer glass holder 102 for securing the outer glass 101, an outer glass holder cover 112 that cooperates with the outer glass holder 102, and a seal mounted on the outer glass holder cover 112. This seal, which can be an outer door sealant 111, prevents steam, water, and other substances from entering the door assembly during cooking, thereby preventing adverse effects on the door assembly's structure and function. Furthermore, the door frame assembly can include a wire adapter block 113 for routing control system wires. This block can be mounted on the lower right side of the door frame. A microswitch pull tab 103 and a microswitch pull tab rotating column 109 can be located on the upper left and right sides of the door frame assembly to interact with the microswitches on the body assembly. When the door is closed, the microswitch pull tab switches on both microswitches. A button can be located on the outer glass fixture 102. The button 105 is mounted on a button cover 104 and attached to a button base 107 via a button plate 106. This allows the entire button to be located in the upper right corner of the outer door fixture for easy user operation.

[0032] Figure 4 An exploded view of a screen assembly for a cooking machine according to one embodiment of the present invention is shown. As shown, the screen assembly may include a touch screen 114, a touch screen mounting bracket 116, a color screen 124, a mounting bracket back cover 125, and a heat shield 126. The color screen 124 may be located behind the touch screen 101 in the touch screen mounting bracket 116 to display various information to the user. A control system may be located within the screen assembly. The control system may include an encoder 118 and a control panel. A transmitter 122 and a receiver 123 may be located within the touch screen mounting bracket 116 via a pressure block 121. A knob 119 and a hardware knob 120 may be located within the encoder 118 and mounted within the touch screen mounting bracket 116 via a transparent member 117 through threaded connections, snap-fit connections, adhesive bonding, or other methods. The control panel may be an Android board 113 located within the screen assembly. The control system may also include various sensors, such as temperature and radiation sensors, to monitor, adjust, and control various parameters during cooking, such as temperature and radiation levels. Figure 5The enlarged rear view of the assembled screen assembly according to an embodiment of the present invention is shown, wherein the transmitter 122 and the receiver 123 are arranged at the lower part of the screen assembly. The assembled screen assembly can be assembled at a corresponding position in the upper middle part of the door frame assembly.

[0033] Figure 6 FIG1 shows an exploded view of an electronic lock assembly, a body assembly, and a water tank assembly of a cooking machine according to an embodiment of the present invention, wherein the hardware body is removed. Figure 6 As shown, the machine body assembly 2 may include a machine body frame, a baking oven 201 located on the rear sidewall of the machine body frame, and a hardware frame 206 (removed in this figure). The baking oven 201 can bake food placed in the cooking machine. A hardware tray 207 and a glass tray 208 for placing food can be slidably positioned on rails located on the inner sidewalls of the machine body frame. The trays can be made of any suitable material. The cold water tank assembly 3 and the hot water tank assembly 4 are removably mounted to the base of the machine body assembly 2. The hot water tank assembly 4 is preferably a stainless steel tank assembly. An automatic push rod 203 and a hydraulic rod 205 may be installed on either side of the machine, respectively. The hydraulic rod 205 is connected to the automatic push rod via a hydraulic rod fixing 204. The automatic push rod 203 is fixed to the sidewall of the machine body frame via an automatic push rod fixing 202. The automatic push rod 203 and the hydraulic rod 205 are mechanically connected to the door assembly via a suitable means. A micro switch and an electronic lock push rod are also installed on either side of the machine body frame, respectively. The left microswitch 209 is fixed to the left microswitch mounting bracket 212 and interacts with the microswitch pull tab 103 and the microswitch pull tab rotating column 109 provided on the door assembly via the microswitch push rod 211. The right microswitch is fixed to the right microswitch mounting bracket 215 and acts on the corresponding microswitch pull tab in a similar manner. The electronic lock push rod is mechanically connected to the corresponding solenoid valve. A left electronic lock push rod pressure block 210 is provided to interact with the left electronic lock push rod 213. The right electronic lock push rod 216 functions in a similar manner. When the door is closed, the microswitch pull button turns on the microswitches on both sides, and then the machine is started. The solenoid valve 214 set on the left side of the machine actuates the left electronic lock push rod 213, pushes it out and presses against the left microswitch pull button 103 set at the corresponding left side of the door frame assembly; and the solenoid valve set on the right side of the machine actuates the right electronic lock push rod 216, pushes it out and presses against the right microswitch pull button set at the corresponding right side of the door frame assembly, so that the door of the machine will not be opened during cooking.

[0034] Figure 7 Shown Figure 6 Schematic diagram of the three-dimensional hardware body 206 removed. Figure 8A right side view of a cooking machine according to an embodiment of the present invention is shown with the hardware removed, wherein the right electronic lock push rod 216 and the corresponding micro switch pull tab 103 are visible; Figure 9 1 shows a left side view of a cooking machine according to an embodiment of the present invention with the hardware body removed, wherein the left electronic lock push rod 213 and the corresponding micro switch pull buckle 103 are visible.

[0035] After assembling the various components of the cooking machine according to the present invention and closing the door, when the machine is powered on, the user places their hand under the touchscreen mounting bracket. The transmitter and receiver sense the hand, providing feedback to the machine, which causes an automatic push rod and hydraulic lever to push the door open. Alternatively, the user presses a button in the upper right corner of the door. Upon receiving this feedback, the automatic push rod and hydraulic lever will also push the door open. After the user places their food, because the door is open and the touchscreen mounting bracket is inconvenient to operate from the bottom, the user can press the button in the upper right corner of the outer door fixture. Upon receiving this feedback, the automatic push rod and hydraulic lever will pull the door back until it is securely closed. When the door is securely closed, a microswitch pull-tab activates the microswitches on both sides, starting the machine. The solenoid valves on both sides of the machine push out the left and right electronic lock push rods against the microswitch pull-tab, preventing the door from opening while cooking. When cooking is complete, the solenoid valves pull back the left and right electronic lock push rods, allowing the door to be opened. Such a setting is very user-friendly, making user operation more convenient and quick and further improving the safety of use.

[0036] The above-mentioned cooking machine may further include other necessary components (eg, electrical connections, operating control devices, etc.) for realizing its functions. These components are well known to those skilled in the art and will not be described in detail herein.

[0037] The above description is intended to illustrate the present invention only and is not intended to limit the present invention. It should be noted that a person skilled in the art may make various improvements, modifications, and variations to the present invention, but such improvements, modifications, and variations should be deemed to fall within the scope of protection of the present invention without departing from the spirit of the present invention.

[0038] Reference numerals list:

[0039] 1 door assembly

[0040] 101 exterior glass

[0041] 102 External glass fixings

[0042] 103 Micro switch pull buckle

[0043] 104 button covers

[0044] 105 buttons

[0045] 106 keypad

[0046] 107 keypad base

[0047] 108 Microwave Partition

[0048] 109 Micro switch pull buckle rotating column

[0049] 110 inner glass

[0050] 111 Exterior Door Sealant

[0051] 112 Outer glass fixing cover

[0052] 113 line adapter block

[0053] 114 touch screen

[0054] 115 Android board

[0055] 116 Touch screen fixing bracket

[0056] 117 transparent parts

[0057] 118 Encoder

[0058] 119 Knob

[0059] 120 Hardware Knobs

[0060] 121 Briquetting

[0061] 122 Transmitter

[0062] 123 Receiver

[0063] 124 color screen

[0064] 125 Fixed frame rear cover

[0065] 126 insulation board

[0066] 2 Body components

[0067] 201 baking oven

[0068] 202 Automatic push rod fixing parts

[0069] 203 Automatic push rod

[0070] 204 Hydraulic rod fixing

[0071] 205 hydraulic rod

[0072] 206 Hardware Body

[0073] 207 Hardware Tray

[0074] 208 Glass Tray

[0075] 209 Micro switch

[0076] 210 Left electronic lock push rod pressure block

[0077] 211 Micro switch push rod

[0078] 212 Left micro switch fixing bracket

[0079] 213 Left electronic lock push rod

[0080] 214 solenoid valve

[0081] 215 Right micro switch fixing bracket

[0082] 216 Right electronic lock push rod

[0083] 3 Cold water tank components

[0084] 4 Hot water tank assembly.

Claims

1. A door assembly for a cooking machine, comprising: A screen assembly, comprising a touch screen, a touch screen fixing frame, and a fixing frame back cover; a door frame assembly comprising outer glass, an outer glass fixing member, inner glass, and an outer glass fixing member cover; A control system comprising an encoder and a control panel disposed at the touch screen fixing bracket; and An electronic lock system, the electronic lock system comprising a micro switch, a solenoid valve and an electronic lock push rod arranged at the door assembly; It is characterized in that The microswitch also includes a microswitch pull buckle arranged at the door frame assembly and a microswitch pull buckle rotating column acting on the microswitch pull buckle, wherein the microswitch interacts with the microswitch pull buckle and the microswitch pull buckle rotating column through its microswitch top rod, wherein when the door assembly is closed and the cooking machine is started, the solenoid valve pushes out the electronic lock push rod to push against the microswitch pull buckle so that the door assembly cannot be opened when the cooking machine is cooking, and when the cooking machine finishes cooking, the solenoid valve pulls back the electronic lock push rod, wherein the control system also includes a transmitter and a receiver arranged at the lower part of the screen assembly at the touch screen fixing frame, and wherein automatic push rods and hydraulic rods mechanically connected to the door assembly are installed on both sides of the cooking machine for automatic opening and / or closing of the door assembly.

2. The door assembly according to claim 1, wherein: A button is provided on the door frame assembly.

3. The door assembly according to claim 2, wherein: The button comprises a button cover and a button plate, and the button is arranged on the upper right part of the outer glass fixing piece.

4. The door assembly according to any one of claims 1 to 3, characterized in that: A knob is provided at the encoder and is mounted on the touch screen fixing bracket via a mounting member.

5. The door assembly according to any one of claims 1 to 3, characterized in that: The control panel is an Android board.

6. A cooking machine having a door assembly according to any one of claims 1 to 5.

7. The cooking machine according to claim 6, characterized in that The cooking machine is an oven, a steamer, a steam oven or a microwave oven.

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