Microwave oven

Abstract

The utility model relates to the technical field of household appliances, in particular to a microwave oven. The microwave oven comprises a shell, a carrying plate, a weighing sensor and a weight displayer, a protruding column is formed on the side, facing the shell, of the carrying plate, a connecting hole is formed in the top of the shell, the protruding column is inserted into the connecting hole, and the outer diameter of the protruding column is smaller than the inner diameter of the connecting hole. The first end of the weighing sensor is fixed in the shell, the second end of the weighing sensor is connected with the lower end of the convex column, the weighing sensor is used for weighing food placed on the carrying plate, the weight displayer is arranged at the top of the shell, and the weight displayer is electrically connected with the weighing sensor. And the weight display is used for displaying the weight of food on the carrying plate. According to the microwave oven provided by the utility model, food on the loading plate can be directly weighed, so that the accuracy of the weight of the food weighed by the microwave oven is effectively ensured, and weighing errors are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a microwave oven. Background Art

[0002] The types of microwave ovens currently on the market mainly include traditional desktop microwave ovens, air fryer microwave ovens or microwave ovens with steam and oven, etc. The most important function in evaluating a microwave oven is the cooking effect. Existing microwave ovens are set with automatic menu programs. Users need to weigh the food in advance according to the weight prompted by the automatic menu program, then put the food into the microwave oven and manually select the corresponding cooking program to start the microwave oven to ensure the best cooking effect of the food.

[0003] However, the existing microwave oven weighing system needs to determine the weight of the food placed in the microwave oven by weighing the weight change of the entire microwave oven. When the weight of the food is light, there is often an error in the weight measurement of the food, which affects the user's judgment of the actual weight of the food, resulting in errors in the selected cooking program, and affecting the cooking effect of the food. Utility Model Content

[0004] In order to solve the defects of the prior art, the utility model provides a microwave oven that can directly weigh the weight of food on a loading plate, effectively ensuring the accuracy of the weight of food weighed by the microwave oven and avoiding weighing errors caused by the weight of food. At the same time, the weight of food is directly displayed on the weight display, which is convenient for users to obtain food weight information, and ensures that the cooking menu program of the microwave oven corresponds to the weight of food, thereby ensuring the cooking effect of the microwave oven on food.

[0005] In order to solve the above technical problems, the utility model provides a microwave oven, comprising:

[0006] shell;

[0007] A loading plate, wherein a convex column is formed on one side of the loading plate facing the shell, a connecting hole is formed on the top of the shell, the convex column is inserted into the connecting hole, and the outer diameter of the convex column is smaller than the inner diameter of the connecting hole;

[0008] A weighing sensor, wherein a first end of the weighing sensor is fixed inside the housing, a second end of the weighing sensor is connected to a lower end of the protruding column, and the weighing sensor is used to weigh food placed on the loading plate;

[0009] A weight display is arranged on the top of the shell, the weight display is electrically connected to the weighing sensor, and the weight display is used to display the weight of the food on the loading plate.

[0010] Wherein, a fixing bracket is arranged inside the shell, the first end of the weighing sensor is bolted to the fixing bracket, the lower end of the protruding column is provided with a connecting plate, and the second end of the weighing sensor is threadedly connected to the connecting plate.

[0011] Wherein, a seismic isolation pad is arranged between the weighing sensor and the fixing bracket.

[0012] A support bracket is provided on one side of the carrier plate facing the housing, the support bracket is connected to the boss, and the support bracket is formed with a plurality of legs, each of which extends from the boss to the edge of the carrier plate.

[0013] Wherein, one end of the support foot away from the boss is rotatably connected with an adjusting bolt, the adjusting bolt abuts against the loading board, and the loading board is provided with a level indicator, and the level indicator is used to display the horizontal state of the loading board.

[0014] The weight display comprises a first mounting shell, a first circuit board and a display panel, wherein the first mounting shell is detachably connected to the housing, a fixing groove is formed on a side of the first mounting shell away from the housing, the first circuit board is mounted in the fixing groove, and the first circuit board is electrically connected to the weighing sensor:

[0015] The display panel is installed in the fixing groove, and the display panel is connected to the first circuit board.

[0016] Wherein, the first mounting shell is provided with an adjustment button, and the adjustment button is electrically connected to the first circuit board.

[0017] Wherein, one of the first mounting shell and the outer shell is formed with a buckle, and the other of the first mounting shell and the outer shell is formed with a slot, and the first mounting shell and the outer shell are connected by a buckle.

[0018] Among them, it also includes:

[0019] a second mounting shell, detachably connected to the outer shell;

[0020] The second circuit board, the second mounting shell forms a mounting inner cavity, the second circuit board is arranged in the mounting inner cavity, the second circuit board is electrically connected to the weighing sensor; the second circuit board is installed with an MCU.

[0021] Wherein, a start button is arranged outside the second installation shell, and the start button is connected to the second circuit board.

[0022] The implementation of this utility model has the following beneficial effects:

[0023] The microwave oven of the utility model directly sets a loading plate on the top of the shell and sets a weighing sensor under the loading plate, so that the microwave oven can directly weigh the weight of the food on the loading plate, effectively ensuring the accuracy of the weight of the food weighed by the microwave oven and avoiding weighing errors due to the weight of the food. At the same time, the weight of the food is directly displayed on the weight display, which is convenient for users to obtain food weight information, and ensures that the cooking menu program of the microwave oven corresponds to the weight of the food, thereby ensuring the cooking effect of the microwave oven on the food. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the microwave oven of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the shell of the utility model;

[0026] Figure 3 It is a cross-sectional structural schematic diagram of the microwave oven of the utility model;

[0027] Figure 4 It is a schematic diagram of the connection structure of the loading plate and the weighing sensor of the utility model;

[0028] Figure 5 It is a schematic diagram of the object carrier of the utility model when viewed from above;

[0029] Figure 6 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 7 yes Figure 1 Schematic diagram of the enlarged structure at point B in the middle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0032] The microwave oven provided by the utility model can directly weigh the weight of the food on the loading plate 21, effectively ensuring the accuracy of the weight of the food weighed by the microwave oven, and avoiding the weighing error caused by the weight of the food. At the same time, the weight of the food is directly displayed on the weight display 4, which is convenient for the user to obtain the food weight information, and ensures that the cooking menu program of the microwave oven corresponds to the food weight, thereby ensuring the cooking effect of the microwave oven on the food.

[0033] In one embodiment of the present invention, Figures 1 to 7As shown, the microwave oven includes a housing 1, a loading plate 21, a weighing sensor 22 and a weight display 4. A boss 24 is formed on the side of the loading plate 21 facing the housing 1. A connecting hole 11 is formed on the top of the housing 1. The boss 24 is inserted into the connecting hole 11. The outer diameter of the boss 24 is smaller than the inner diameter of the connecting hole 11. The first end of the weighing sensor 22 is fixed to the inside of the housing 1. The second end of the weighing sensor 22 is connected to the lower end of the boss 24. The weighing sensor 22 is used to weigh the food placed on the loading plate 21. The weight display 4 is arranged on the top of the housing 1. The weight display 4 is electrically connected to the weighing sensor 22. The weight display 4 is used to display the weight of the food on the loading plate 21.

[0034] According to the microwave oven of the utility model, when the user places food on the loading plate 21, the loading plate 21 sinks under the action of the weight of the food, and the convex column 24 of the loading plate 21 presses down the weighing sensor 22 to drive the weighing sensor 22 to sink, thereby causing the weighing sensor 22 to undergo elastic deformation. The weighing sensor 22 can convert the elastic deformation of the weighing sensor 22 into an electrical signal through its internal detection circuit and other structures, and transmit it to the weight display 4, so that the weight of the food on the current loading plate 21 is directly displayed through the weight display 4.

[0035] Since the outer diameter of the protrusion 24 is smaller than the inner diameter of the connecting hole 11 on the shell 1, it is ensured that the loading plate 21 will not be limited by the shell 1 when sinking, thereby ensuring the force transmission effect between the loading plate 21 and the weighing sensor 22, thereby ensuring the accuracy of the weighing sensor 22 in measuring the weight of the food on the loading plate 21.

[0036] That is, the microwave oven of the present invention directly sets a loading plate 21 on the top of the housing 1 and sets a weighing sensor 22 below the loading plate 21, so that the microwave oven can directly weigh the weight of the food on the loading plate 21, effectively ensuring the accuracy of the weight of the food weighed by the microwave oven and avoiding weighing errors due to the weight of the food. At the same time, the weight of the food is directly displayed on the weight display 4, which is convenient for users to obtain food weight information, and ensures that the cooking menu program of the microwave oven corresponds to the weight of the food, thereby ensuring the cooking effect of the microwave oven on the food.

[0037] In the embodiment of the present utility model, Figure 3 and Figure 4 As shown, a fixing bracket 23 is provided inside the housing 1, and the first end of the weighing sensor 22 is threadedly connected to the fixing bracket 23. Specifically, the fixing bracket 23 is a U-shaped bracket welded to the housing 1, and the first end of the weighing sensor 22 is provided with at least one through hole, and the fixing bracket 23 is formed with at least one threaded hole, and a bolt or stud passes through the through hole and is connected to the threaded hole on the fixing bracket 23 to ensure that the first end of the weighing sensor 22 is fixed, thereby reducing the measurement error caused by the shaking or movement of the weighing sensor 22.

[0038] The lower end of the boss 24 is connected with a connecting plate 28, and the second end of the weighing sensor 22 is threadedly connected to the connecting plate 28. Specifically, the connecting plate 28 is a square plate structure, the connecting plate 28 and the boss 24 are integrally formed, the connecting plate 28 is formed with two through holes, and the second end of the weighing sensor 22 is formed with two threaded holes, and the bolts or studs pass through the through holes of the connecting plate 28 and are connected with the threaded holes at the second end of the weighing sensor 22 to ensure a stable connection between the loading plate 21 and the weighing sensor 22, and to ensure that the sinking of the loading plate 21 can drive the weighing sensor 22 to undergo elastic deformation.

[0039] It should be noted here that when the weighing sensor 22 undergoes elastic deformation, the resistance value of the weighing sensor 22 itself changes, causing the voltage output by the detection circuit inside the weighing sensor 22 to change, thereby converting the weight signal of the food into an electrical signal through the weighing sensor 22, and outputting the electrical signal representing the weight of the food through the detection circuit of the weighing sensor 22 so that the electrical signal can be subsequently processed.

[0040] In an embodiment of the utility model, a vibration isolation pad is arranged between the weighing sensor 22 and the fixed bracket 23, so as to form a vibration isolation layer between the first end of the weighing sensor 22 and the fixed bracket 23 by utilizing the vibration isolation pad, thereby effectively isolating the influence of the vibration of the housing 1 on the weighing sensor 22, and improving the stability and accuracy of food weight weighing.

[0041] In the embodiment of the present utility model, Figures 3 to 5 As shown, a support bracket 25 is provided on the side of the carrier plate 21 facing the housing 1, and the support bracket 25 is connected to the boss 24. The support bracket 25 is formed with a plurality of legs 26, and each leg 26 extends from the boss 24 to the edge of the carrier plate 21, so as to support the carrier plate 21 through the legs 26 of the support bracket 25. The weight on the carrier plate 21 is dispersed by utilizing the plurality of legs 26, so as to reduce the situation where a single point is subjected to excessive force, improve the load-bearing balance of the carrier plate 21, and avoid the carrier plate 21 from tipping over or deformation damage due to uneven force, thereby affecting the user experience.

[0042] Furthermore, if Figure 5As shown, an adjusting bolt 27 is provided at one end of the support leg 26 away from the boss 24, and the adjusting bolt 27 abuts against the loading board 21, and the loading board 21 is provided with a level indicator, which is used to display the horizontal state of the loading board 21. Specifically, the level indicator is preferably a glass water bottle bubble, and the user can judge whether the current loading board 21 is horizontal according to the bubble position of the glass water bottle bubble. When the loading board 21 is not horizontal, the level of the loading board 21 can be adjusted by adjusting the bolt 27, and the loading board 21 is adjusted to be horizontal to ensure that the loading board 21 is evenly stressed, and then ensure that the load cell 22 is evenly stressed, so as to avoid affecting the accuracy of the measurement structure of the load cell 22.

[0043] In the embodiment of the present utility model, Figure 3 and Figure 6 As shown, the weight display 4 includes a first mounting shell 41, a first circuit board 46 and a display panel 42. The first mounting shell 41 is detachably connected to the housing 1, and a fixing groove 43 is formed on the side of the first mounting shell 41 facing away from the housing 1. The first circuit board 46 and the display panel 42 are both mounted in the fixing groove 43, so that the first mounting shell 41 is used to accommodate and fix the first circuit board 46 and the display panel 42.

[0044] The first circuit board 46 is electrically connected to the weighing sensor 22, and the display panel 42 is connected to the first circuit board 46, so that the first circuit board 46 can obtain the electrical signal representing the weight of the food output by the weighing sensor 22, and after being processed by the first circuit board 46, the current weight of the food is displayed through the display panel 42, so that the user can confirm the current weight of the food.

[0045] Specifically, Figure 3 As shown, a buckle 44 is formed on one of the first mounting shell 41 and the housing 1, and a slot 12 is formed on the other of the first mounting shell 41 and the housing 1, and the buckle 44 is connected between the first mounting shell 41 and the housing 1. Specifically, a buckle 44 is formed on the side of the first mounting shell 41 facing the housing 1, and a slot 12 is formed on the top of the housing 1. The fitting connection of the buckle 44 and the slot 12 simplifies the mounting structure between the weight display 4 and the housing 1, and improves the convenience of maintaining the weight display 4.

[0046] Further, the first mounting shell 41 is provided with an adjustment button, which is electrically connected to the first circuit board 46. The adjustment button can be used to perform a tare operation on the loading plate 21 before weighing, so as to further improve the weighing accuracy of the weighing sensor 22 on the food.

[0047] In the embodiment of the present utility model, Figure 3 and Figure 7As shown, the microwave oven further includes a second mounting shell 31 and a second circuit board 34. The second mounting shell 31 is detachably connected to the housing 1, and the second mounting shell 31 is formed with a mounting inner cavity 32, and the second circuit board 34 is arranged in the mounting inner cavity 32. The second mounting shell 31 is used to accommodate and fix the second circuit board 34, so as to facilitate installation and maintenance, and ensure the stability and reliability of the start controller 3. The second circuit board 34 is electrically connected to the weighing sensor 22, and the second circuit board 34 is installed with an MCU, wherein the MCU is used to match the electrical signal received by the second circuit board 34 with the automatic menu program set inside the microwave oven, so as to obtain the automatic menu program corresponding to the cooking of the food of the current weight.

[0048] Then, when the user confirms that the microwave oven can be started for cooking, the second circuit board 34 controls the microwave oven to cook the food with the cooking power and cooking time in the selected automatic menu without the user having to manually select a cooking program, thereby simplifying the steps of cooking food and effectively improving the user experience.

[0049] Furthermore, if Figure 1 and Figure 3 As shown, a start button 33 is provided on the outside of the second mounting shell 31. The start button 33 is connected to the second circuit board 34. The start button 33 can be used as an external on switch of the integrated circuit in the second circuit board 34. The user can manually start or pause the microwave oven by pressing the start button 33, thereby improving the human-computer interaction between the microwave oven and the user.

[0050] The above is a preferred embodiment of the present utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present utility model.

Claims

1. A microwave oven, characterized in that: include: shell; A loading plate, wherein a convex column is formed on one side of the loading plate facing the shell, a connecting hole is formed on the top of the shell, the convex column is inserted into the connecting hole, and the outer diameter of the convex column is smaller than the inner diameter of the connecting hole; A weighing sensor, wherein a first end of the weighing sensor is fixed inside the housing, a second end of the weighing sensor is connected to a lower end of the protruding column, and the weighing sensor is used to weigh food placed on the loading plate; A weight display is arranged on the top of the shell, the weight display is electrically connected to the weighing sensor, and the weight display is used to display the weight of the food on the loading plate.

2. The microwave oven according to claim 1, characterized in that A fixing bracket is arranged inside the shell, the first end of the weighing sensor is threadedly connected to the fixing bracket, a connecting plate is arranged at the lower end of the boss, and the second end of the weighing sensor is threadedly connected to the connecting plate.

3. The microwave oven according to claim 2, characterized in that: A vibration isolation pad is arranged between the weighing sensor and the fixing bracket.

4. The microwave oven according to claim 1, characterized in that: A support bracket is arranged on one side of the carrier plate facing the housing, the support bracket is connected to the boss, and the support bracket is formed with a plurality of legs, each of which extends from the boss to the edge of the carrier plate.

5. The microwave oven according to claim 4, characterized in that: One end of the support foot away from the boss is rotatably connected with an adjusting bolt, the adjusting bolt abuts against the loading board, and the loading board is provided with a level indicator, and the level indicator is used to display the horizontal state of the loading board.

6. The microwave oven according to any one of claims 1 to 5, characterized in that: The weight display comprises a first mounting shell, a first circuit board and a display panel, wherein the first mounting shell is detachably connected to the housing, a fixing groove is formed on a side of the first mounting shell away from the housing, the first circuit board is mounted in the fixing groove, and the first circuit board is electrically connected to the weighing sensor: The display panel is installed in the fixing groove, and the display panel is connected to the first circuit board.

7. The microwave oven according to claim 6, characterized in that The first mounting shell is provided with an adjustment button, and the adjustment button is electrically connected to the first circuit board.

8. The microwave oven according to claim 6, characterized in that A buckle is formed on one of the first mounting shell and the outer shell, and a slot is formed on the other of the first mounting shell and the outer shell, and the first mounting shell and the outer shell are connected by a buckle.

9. The microwave oven according to any one of claims 1 to 5, characterized in that: Also includes: a second mounting shell, detachably connected to the outer shell; The second circuit board, the second mounting shell forms a mounting inner cavity, the second circuit board is arranged in the mounting inner cavity, the second circuit board is electrically connected to the weighing sensor; the second circuit board is installed with an MCU.

10. The microwave oven according to claim 9, characterized in that A start button is arranged outside the second installation shell, and the start button is connected to the second circuit board.

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