Flat plate heating structure of steaming and baking module and cooking equipment

Abstract

The utility model provides a flat plate heating structure of a steaming and baking module and cooking equipment. The flat plate heating structure comprises a glass coating film heating plate and a heat insulation plate located above the glass coating film heating plate. The glass film-coated heating plate comprises a glass substrate, a film-coated heating body is arranged on the top surface of the glass substrate, and the edge of the film-coated heating body is connected with a silver contact; the heat insulation plate is provided with a first mounting hole corresponding to the silver contact, a wire holder is arranged in the first mounting hole, and the wire holder is electrically connected with the silver contact. According to the flat plate heating structure of the steaming and baking module and the cooking equipment, the heating pipe located on the upper portion and the top of the cavity can be shielded, oil stains and stains generated after cooking are prevented from being attached to the heating pipe and the top of the cavity, cleaning is easy, attractiveness is achieved, and in addition, the space of the cooking cavity can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to a flat heating structure of a steaming and baking module and cooking equipment. Background Art

[0002] In existing kitchen cooking equipment, such as the steaming and baking module of a steam box, an oven or an integrated stove, the upper heating tube is exposed inside the cooking equipment cavity, and it has the following problems:

[0003] (1) Oil stains and dirt after cooking will adhere to the upper heating tube and the top of the cavity, and are not easy to clean;

[0004] (2) The heating tube in the cavity is exposed, and the overall effect is not beautiful;

[0005] (3) The heating tube will occupy a certain space and volume, resulting in low space utilization.

[0006] Therefore, an improved technical solution is needed to address the above deficiencies in the prior art. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a flat heating structure of a steaming and baking module, which can shield the heating tube above and the top of the cavity, prevent oil stains and dirt after cooking from adhering to the heating tube and the top of the cavity, is easy to clean and beautiful, and can also save the space of the cooking cavity.

[0008] Another purpose of the utility model is to provide a cooking equipment, which includes the flat heating structure of the above-mentioned steaming and baking module, can shield the heating tube above and the top of the cavity, prevent oil stains and dirt after cooking from adhering to the heating tube and the top of the cavity, is easy to clean and beautiful, and can also save the space of the cooking cavity.

[0009] To achieve the above purposes, the utility model provides the following technical solutions:

[0010] A flat heating structure of a steaming and baking module includes a glass-coated heating plate and a heat insulation plate located above the glass-coated heating plate;

[0011] The glass-coated heating plate includes a glass substrate, a coated heating element is arranged on the top surface of the glass substrate, and a silver contact is connected to the edge of the coated heating element;

[0012] The heat insulation plate is provided with a first mounting hole corresponding to the silver contact, a wiring seat is arranged in the first mounting hole, and the wiring seat is electrically connected to the silver contact.

[0013] According to an embodiment of the utility model, the heat insulation plate is provided with a second mounting hole corresponding to the coated heating element, and a temperature measuring device is arranged in the second mounting hole.

[0014] According to an embodiment of the present utility model, a top frame is provided at the top of the temperature measuring device. The end of the top frame is fixedly connected to the heat insulation plate, and a compression spring is provided between the middle of the top frame and the top of the temperature measuring device, so that the measuring end of the temperature measuring device is kept in contact with the coating heating element.

[0015] According to an embodiment of the present utility model, the temperature measuring device is a thermocouple. The thermocouple includes a ceramic housing with a closed bottom end and a cover at the top end. A negative temperature coefficient thermistor is provided at the bottom end inside the ceramic housing. The two ends of the negative temperature coefficient thermistor are connected to wires, and the wires pass through the cover and lead to the outside. The negative temperature coefficient thermistor and the wires are sheathed with a Teflon hose. A first step portion is provided at the top of the cover, and a second step portion is provided at the bottom surface of the top frame. The two ends of the compression spring are respectively sleeved on the first step portion and the second step portion.

[0016] According to an embodiment of the present utility model, a recessed portion is provided at the top of the heat insulation plate. The second mounting hole and the top frame are located in the recessed portion, and the top surface of the top frame is lower than or flush with the top surface of the heat insulation plate.

[0017] According to an embodiment of the present utility model, the top frame includes a frame body in an inverted U shape and fixing plates horizontally extending from both ends of the frame body. The fixing plates are fixedly connected to the heat insulation plate, and the top of the compression spring is located inside the frame body.

[0018] According to an embodiment of the present utility model, the cross section of the compression spring is in an inverted triangle shape.

[0019] According to an embodiment of the present utility model, heat insulation cotton is provided between the heat insulation plate and the glass coating heating plate. The heat insulation cotton is provided with notch portions corresponding to the first mounting hole and the second mounting hole.

[0020] The present utility model further provides a cooking device, which is provided with a cooking cavity and further includes the flat heating structure of the steaming and baking module as described above, and is arranged at the top of the cooking cavity.

[0021] Compared with the prior art, the advantages and beneficial effects of the embodiments of the present utility model are as follows:

[0022] The flat heating structure of the steaming and baking module and the cooking device provided by the embodiment of the present utility model cancel the existing heating tubes and instead use a glass-coated heating plate for heating, further reducing the thickness of the heating structure, reducing the space occupied in the cooking cavity or the housing of the cooking device, and improving the space utilization rate. When in use, the glass substrate shields the top of the cavity, which can prevent oil stains and dirt after cooking from adhering to the top of the cavity, making it easy to clean and the overall effect more beautiful. The heat insulation plate of the flat heating structure of the steaming and baking module and the cooking device provided by the embodiment of the present utility model can isolate the heat of the glass-coated heating plate upward, ensuring that the heat is transmitted downward as much as possible and reflected into the cooking cavity of the cooking device below, avoiding energy loss and also avoiding damage to the cooking device components above, such as the air duct, water tank, circuit board, etc. Description of the Drawings

[0023] The schematic diagrams in the specification forming a part of the present utility model are used to provide a further understanding of the present utility model. The illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. Among them:

[0024] Figure 1 It is a schematic structural diagram of the flat heating structure of the steaming and baking module provided by the embodiment of the present utility model;

[0025] Figure 2 It is a longitudinal sectional view of the flat heating structure of the steaming and baking module provided by the embodiment of the present utility model;

[0026] Figure 3 It is an exploded view of the flat heating structure of the steaming and baking module provided by the embodiment of the present utility model;

[0027] Figure 4 It is a schematic structural diagram of the glass-coated heating plate of the flat heating structure of the steaming and baking module provided by the embodiment of the present utility model;

[0028] Figure 5 It is a schematic structural diagram of the thermocouple of the flat heating structure of the steaming and baking module provided by the embodiment of the present utility model;

[0029] Figure 6 It is a cross-sectional view of the thermocouple of the flat heating structure of the steaming and baking module provided by the embodiment of the present utility model;

[0030] Figure 7 It is a schematic structural diagram of the cooking device provided by the embodiment of the present utility model;

[0031] Figure 8 It is a cross-sectional view of the cooking device provided by the embodiment of the present utility model.

[0032] Description of the Reference Numerals:

[0033] 1. Glass-coated heating plate; 11. Glass substrate; 12. Coated heating element; 13. Silver contact; 2. Heat insulation plate; 21. First mounting hole; 22. Second mounting hole; 23. Concave portion; 3. Wiring base; 4. Thermocouple; 41. Ceramic housing; 42. Sealing cover; 43. Negative temperature coefficient thermistor; 44. Wire; 45. Teflon hose; 46. First step portion; 5. Top frame; 51. Second step portion; 52. Frame body; 53. Fixed plate; 54. Pad; 6. Compression spring; 7. Heat insulation cotton; 71. Notch portion; 8. Cooking cavity; 91. Temperature sensing element; 92. Heating tube. Detailed implementation manners

[0034] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present utility model rather than a limitation thereof. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present utility model without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Therefore, it is desirable that the present utility model includes such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0035] In the description of the present utility model, terms such as "first", "second" and the like do not denote any order, quantity or importance, but are only used to distinguish different components. Terms such as "including" or "comprising" and the like mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected", "connected" and "arranged" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] As Figures 1 - 3 shown, an embodiment of the present utility model provides a flat heating structure of a steaming and baking module, including a glass-coated heating plate 1 and a heat insulation plate 2 located above the glass-coated heating plate 1. For the convenience of clear description, it is defined that Figure 1 above in Figure 1Below is down. The glass-coated heating plate 1 includes a glass substrate 11, which is rectangular in this embodiment, but is not limited thereto. A coated heating element 12 is provided on the top surface of the glass substrate 11, and a silver contact 13 is connected to the edge of the coated heating element 12. The heat insulation plate 2 is provided with a first mounting hole 21 corresponding to the silver contact 13, and a wiring seat 3 is provided in the first mounting hole 21, and the wiring seat 3 is electrically connected to the silver contact 13.

[0037] When assembling the flat heating structure of the steam cooking module provided by the embodiment of the present invention, the glass substrate 11 of the glass-coated heating plate 1 can be bonded to the bottom of the heat insulation plate 2 through silicone, and the wiring seat 3 can be bonded to the glass substrate 11 through silicone and electrically connected to the silver contact 13. Then, the live wire and the neutral wire are connected to the wiring seat 3 to supply power to the coated heating element 12 of the glass-coated heating plate 1 for heating. After assembly, the flat heating structure of the present invention is installed on the top of the cooking cavity of the cooking device, which can be installed inside the top of the cooking cavity, or an opening can be made at the top of the cooking cavity, and the flat heating structure is fixed outside the opening at the top of the cooking cavity to avoid occupying the space of the cooking cavity. The flat heating structure of the steam cooking module provided by the embodiment of the present invention cancels the existing heating tube and instead uses the glass-coated heating plate 1 for heating, further reducing the thickness of the heating structure, reducing the space occupied in the cooking cavity or the housing of the cooking device, and improving the space utilization rate. When in use, the glass substrate 11 blocks the top of the cavity, which can prevent oil stains and dirt after cooking from adhering to the top of the cavity, making it easy to clean and the overall effect more beautiful. The heat insulation plate 2 of the flat heating structure of the steam cooking module provided by the embodiment of the present invention can isolate the heat of the glass-coated heating plate 1 upward, ensuring that the heat is transmitted downward as much as possible and reflected into the cooking cavity of the cooking device below, avoiding energy loss and also avoiding damage to the cooking device components above, such as the air duct, water tank, circuit board, etc.

[0038] Since the coated heating element 12 is in close contact with the glass substrate 11 and the coated heating element 12 has a relatively high temperature during operation, in a preferred embodiment of the present invention, the glass substrate 11 is a heat-resistant glass-ceramic.

[0039] To control the heating temperature of the glass-coated heating plate 1 and prevent the temperature from being too high to damage the glass substrate 11 and the coated heating element 12, as Figure 2 、 Figure 3 shown, the heat insulation plate 2 is provided with a second mounting hole 22 corresponding to the coated heating element 12, and a temperature measuring device is inserted into the second mounting hole 22. The temperature of the glass-coated heating plate 1 is measured by the temperature measuring device to prevent it from exceeding the maximum temperature that components such as the glass substrate 11 and the heat insulation plate 2 can withstand.

[0040] In an embodiment of the present utility model, the temperature measuring device is a thermocouple 4. As Figure 5 , Figure 6 shown, the thermocouple 4 includes a ceramic housing 41 with a closed bottom end and a cover 42 provided at the top end. At the bottom end inside the ceramic housing 41, a negative temperature coefficient thermistor 43 (NTC) is provided. Both ends of the negative temperature coefficient thermistor 43 are connected to a wire 44, and the wire 44 passes through the cover 42 and leads to the outside to be connected to a control system. The negative temperature coefficient thermistor 43 and the wire 44 are sheathed with a Teflon hose 45, which has the properties of high temperature resistance and insulation, can reduce interference, improve the accuracy of temperature measurement, and can also extend the service life of the thermocouple 4. As Figure 2 shown, when in use, the bottom end of the thermocouple 4, that is, the end provided with the negative temperature coefficient thermistor 43, is brought into contact with the film heating element 12 to improve the accuracy of temperature measurement.

[0041] To prevent the temperature measuring device from detaching from the film heating element 12 and causing measurement errors, as Figure 2 , Figure 3 shown, a top frame 5 is provided at the top of the temperature measuring device. The end of the top frame 5 is fixedly connected to the heat insulation plate 2, and a compression spring 6 is provided between the middle of the top frame 5 and the top of the temperature measuring device, so that the measuring end of the temperature measuring device remains in contact with the film heating element 12.

[0042] To limit the position of the compression spring 6, as Figure 2 , Figure 5 , Figure 6 shown, a first step portion 46 is provided at the top of the cover 42, and a second step portion 51 is provided on the bottom surface of the top frame 5. Both ends of the compression spring 6 are respectively sleeved on the first step portion 46 and the second step portion 51.

[0043] As Figure 2 , Figure 3 shown, in an embodiment of the present utility model, the top frame 5 includes a U-shaped inverted frame body 52 and fixing plates 53 horizontally extending from both ends of the frame body 52. The fixing plates 53 are fixedly connected to the heat insulation plate 2 (for example, by screws or adhesives), and the second step portion 51 is provided on the bottom surface of the frame body 52. The top of the compression spring 6 is located inside the frame body 52 to further limit the compression spring 6. In addition, since the bottom surface area of the frame body 52 is relatively large, a good positioning effect on the compression spring 6 cannot be provided only by the second step portion 51. Therefore, in a preferred embodiment of the present utility model, as Figure 2 , Figure 3As shown, the cross-section of the compression spring 6 is an inverted triangle, with a smaller bottom diameter connected to the first step portion 46 of the thermocouple and a larger top diameter connected to the frame body 52. The outer periphery abuts against the side wall of the frame body 52, and it is sleeved outside the second step portion 51 internally, improving the positioning effect on the top of the compression spring 6.

[0044] To protect the heat insulation plate 2 and prevent excessive local stress, as Figure 2 、 Figure 3 shown, a backing plate 54 is provided between the heat insulation plate 2 and the frame body 5, and the backing plate 54 is provided with holes corresponding to the thermocouple 4.

[0045] To avoid affecting the installation of components above the heat insulation plate 2, as Figure 1 、 Figure 2 、 Figure 3 shown, a recessed portion 23 is provided at the top of the heat insulation plate 2. The second mounting hole 22 and the top frame 5 are both located within the recessed portion 23, and the top surface of the top frame 5 is lower than or flush with the top surface of the heat insulation plate 2. In this way, the top and bottom surfaces of the entire flat heating structure are flat planes without protruding components, which can avoid interference with components above and below, reduce the assembly difficulty, and improve the assembly efficiency.

[0046] To further improve the effect of the flat heating structure for insulating heat upwards, as Figure 2 、 Figure 3 shown, a heat insulation cotton 7 is provided between the heat insulation plate 2 and the glass-coated heating plate 1, so that heat can be better conducted to the cooking cavity below. The heat insulation cotton 7 is provided with notch portions 71 corresponding to the first mounting hole 21 and the second mounting hole 22 to avoid the wiring seat 3 and the temperature measuring device.

[0047] As Figure 7 、 Figure 8 shown, the present invention also provides a cooking device, which is provided with a cooking cavity 8 and further includes the flat heating structure of the above-mentioned steaming and baking module, which is arranged on the top of the cooking cavity 8. The cooking device can be a steam box, an oven, an integrated stove, etc. Two temperature sensing elements 91 (such as thermocouples) are arranged in the cooking cavity 8, and a heating tube 92 is arranged at the bottom of the cooking cavity 8.

[0048] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flat heating structure of a steaming and baking module, characterized in that: It comprises a glass-coated heating plate (1) and a heat-insulating plate (2) located above the glass-coated heating plate (1); The glass coated heating plate (1) comprises a glass substrate (11), a coated heating element (12) is provided on the top surface of the glass substrate (11), and the edge of the coated heating element (12) is connected to a silver contact (13); The heat insulation board (2) is provided with a first mounting hole (21) corresponding to the silver contact (13); a wiring seat (3) is provided in the first mounting hole (21); and the wiring seat (3) is electrically connected to the silver contact (13).

2. The flat heating structure of the steaming and baking module according to claim 1, characterized in that: The heat insulation board (2) is provided with a second mounting hole (22) corresponding to the film-coated heating element (12), and a temperature measuring device is inserted into the second mounting hole (22).

3. The flat heating structure of the steaming and baking module according to claim 2, characterized in that: A top frame (5) is provided on the top of the temperature measuring device, and the end of the top frame (5) is fixedly connected to the heat insulation board (2). A compression spring (6) is provided between the middle of the top frame (5) and the top of the temperature measuring device, so that the measuring end of the temperature measuring device maintains contact with the coated heating element (12).

4. The flat heating structure of the steaming and baking module according to claim 3, characterized in that: The temperature measuring device is a thermocouple (4), which comprises a ceramic shell (41), the bottom end of the ceramic shell (41) is closed, and the top end is provided with a cover (42); a negative temperature coefficient thermistor (43) is provided at the bottom end of the ceramic shell (41), and two ends of the negative temperature coefficient thermistor (43) are connected to wires (44), and the wires (44) pass through the cover (42) to the outside; the negative temperature coefficient thermistor (43) and the wire (44) are covered with a Teflon hose (45); the top of the cover (42) is provided with a first step portion (46), and the bottom surface of the top frame (5) is provided with a second step portion (51); the two ends of the compression spring (6) are respectively sleeved on the first step portion (46) and the second step portion (51).

5. The flat heating structure of the steaming and baking module according to claim 3, characterized in that: A recessed portion (23) is provided on the top of the heat insulation board (2); the second mounting hole (22) and the top frame (5) are located in the recessed portion (23); and the top surface of the top frame (5) is lower than the top surface of the heat insulation board (2) or is flush with the top surface of the heat insulation board (2).

6. The flat heating structure of the steaming and baking module according to claim 3, characterized in that: The top frame (5) comprises an inverted U-shaped frame body (52) and fixed plates (53) extending horizontally from both ends of the frame body (52); the fixed plates (53) are fixedly connected to the heat insulation board (2); and the top of the compression spring (6) is located inside the frame body (52).

7. The flat heating structure of the steaming and baking module according to any one of claims 3 to 6, characterized in that: The cross section of the compression spring (6) is in the shape of an inverted triangle.

8. The flat heating structure of the steaming and baking module according to any one of claims 2 to 6, characterized in that: A heat insulation cotton (7) is provided between the heat insulation board (2) and the glass-coated heating board (1), and the heat insulation cotton (7) is provided with a notch portion (71) corresponding to the first mounting hole (21) and the second mounting hole (22).

9. A cooking device, provided with a cooking cavity (8), characterized in that: It also comprises a flat heating structure of the steaming and baking module according to any one of claims 1 to 8, which is arranged on the top of the cooking cavity (8).

Images