Microwave oven

Abstract

The microwave oven comprises a shell and an oven body arranged in the shell, an oven panel is arranged at one end of the oven body, a back heat dissipation channel is arranged between the shell and the other end of the oven body, and a top heat dissipation channel is arranged at the top between the back heat dissipation channel and the oven panel. A top heat dissipation channel is formed in the top of the oven panel, a bottom heat dissipation channel is formed in the bottom between the top heat dissipation channel and the back heat dissipation channel, the back heat dissipation channel is communicated with the top heat dissipation channel and the bottom heat dissipation channel, a top air outlet is formed between the top heat dissipation channel and the top of the oven panel, and a bottom air outlet is formed between the bottom heat dissipation channel and the bottom of the oven The back heat dissipation channel is provided with a heat dissipation fan used for conducting heat dissipation and temperature control on the oven body, the side, close to the back heat dissipation channel, of the top heat dissipation channel is provided with at least one cross-flow fan, and the side, close to the back heat dissipation channel, of a left side plate and / or a right side plate and / or a back plate of the shell is provided with an air inlet hole structure. Therefore, the heat dissipation and temperature control performance of the oven is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of microwave oven, especially a microwave oven. BACKGROUND

[0002] The existing microwave oven, such as patent literature number: CN114732297A, patent name: a microwave oven energy-saving heating structure and its heating method of Chinese invention patent application, its specific disclosure: a microwave oven energy-saving heating structure, including microwave oven, the circuit main control board being set in the microwave oven, the lower heating pipe being set in the bottom of the microwave oven, the upper heating pipe being set in the top of the microwave oven, and the temperature probe being set in the microwave oven and being connected with the circuit main control board electric signal, the microwave oven is provided with preheating mode heating device and heating mode heating device, the preheating mode heating device includes lower heating pipe, upper heating pipe, the lower heating pipe is connected in parallel with upper heating pipe, the lower heating pipe and upper heating pipe are connected with circuit main control board electricity and signal, the heating mode heating device includes lower heating pipe and upper heating pipe, the lower heating pipe and upper heating pipe are connected in series, the lower heating pipe and upper heating pipe are connected with circuit main control board electricity and signal.

[0003] Therefore, the microwave oven has the advantages of large power of heating pipe, rapid temperature rise and high cooking efficiency, and can realize rapid cooking and save time.

[0004] However, the microwave oven has the following problems: Figure 1 According to the disclosure, the microwave oven only controls temperature by the internal heat dissipation fan, then transmits hot air through the heat dissipation channel inside the microwave oven, and dissipates the hot air through the heat dissipation hole in front of the key panel, which has the disadvantage of poor heat dissipation and temperature control capability. SUMMARY

[0005] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a microwave oven, which aims at optimizing the heat dissipation problem inside the oven and improving the heat dissipation and temperature control performance of the oven.

[0006] In order to achieve the above object, the utility model provides a microwave oven, including the shell and the oven body that installs in the shell inside, oven panel is equipped with one end of oven body, back heat dissipation channel is equipped with between the other end of shell and oven body, top back heat dissipation channel and oven panel between are equipped with top heat dissipation channel, and the bottom between both is equipped with bottom heat dissipation channel, back heat dissipation channel is linked with top heat dissipation channel, bottom heat dissipation channel respectively, top heat dissipation channel and oven panel top between be equipped with top air outlet, bottom heat dissipation channel and oven panel bottom between be equipped with bottom air outlet, back heat dissipation channel is equipped with the heat dissipation fan for the oven body heat dissipation temperature control, top heat dissipation channel is equipped with at least one cross flow fan on the side close to back heat dissipation channel, the left plate and / or right plate and / or back plate of shell is equipped with air inlet hole structure on the side close to back heat dissipation channel.

[0007] As preferred, the top heat dissipation channel is equipped with an auxiliary heat dissipation cavity on the side close to the back heat dissipation channel, the cross flow fan is installed on the side wall of the auxiliary heat dissipation cavity, and a plurality of first air guide holes are arranged on the bottom of the auxiliary heat dissipation cavity and communicated with the back heat dissipation channel.

[0008] As preferred, the number of cross flow fans is two.

[0009] As preferred, a heat insulation plate is installed on the heat dissipation fan, and the heat insulation plate comprises a first flange baffle arranged on the left end of the heat dissipation fan and a second flange baffle arranged on the right end of the heat dissipation fan.

[0010] As preferred, a temperature sensor for measuring the temperature of the oven body is further arranged on the side of the heat dissipation fan.

[0011] As preferred, a sensor support is further arranged on the side of the heat dissipation fan, the temperature sensor is arranged on the sensor support, the sensor support is in the shape of a Chinese character "fang", and a high-temperature silica gel sheet is attached to the bottom of the sensor support.

[0012] As preferred, a third baffle is arranged on the top between the oven panel and the oven body.

[0013] As preferred, air guide plates are arranged on the left and right ends of the top heat dissipation channel close to the oven panel.

[0014] As preferred, a key panel is arranged on the top of the oven panel.

[0015] As preferred, a plurality of foot pads are arranged on the bottom of the shell.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model relates to a microwave oven, the heat dissipation channel in the oven is composed of the back heat dissipation channel, the top heat dissipation channel and the bottom heat dissipation channel,

[0018] Firstly, the oven body is used for rapid heating to heat food quickly, and the oven body is used for heating and cooking food under a certain constant temperature,

[0019] Then, the oven body is heated by the heating pipe inside, and is cooled by the heat dissipation fan at one end, the air speed of the heat dissipation fan is controlled, so that the heating pipe and the heat dissipation fan heat and cool at the same time, so that the oven body reaches a certain constant temperature, so as to better cook food,

[0020] Therefore, the microwave oven improves the heat dissipation and temperature control performance of the heat dissipation fan, optimizes the heat dissipation channel in the oven, and has the following two heat dissipation paths:

[0021] A. heat dissipation through the back heat dissipation channel - bottom heat dissipation channel - bottom air outlet

[0022] B. heat dissipation through the back heat dissipation channel - top heat dissipation channel - top air outlet,

[0023] Further, the air inlet hole structure is arranged on the side of the left side plate and / or the right side plate and / or the back plate of the shell close to the back heat dissipation channel, the cross-flow fan draws air into the air inlet hole structure, the outdoor air amount between the top heat dissipation channel and the back heat dissipation channel is increased, and the air convection speed between the two is faster, so that the heat accumulation problem of the back heat dissipation channel (outdoor air is cold, goes down, and the air in the back heat dissipation channel is hot, goes up) is greatly reduced, the air outlet amount and the convection efficiency of the top air outlet of the top heat dissipation channel are increased, and the heat dissipation fan is convenient to dissipate heat.

[0024] 2. Therefore, according to the above, the utility model provides a microwave oven,

[0025] By adding the heat dissipation design through the back heat dissipation channel - bottom heat dissipation channel - bottom air outlet,

[0026] The back heat dissipation channel and the top heat dissipation channel are optimized through the heat dissipation design of the back heat dissipation channel - top heat dissipation channel - top air outlet, and the optimization design of the cross-flow fan and the air inlet hole structure is added,

[0027] So that the heat dissipation and temperature control performance of the microwave oven is better, so as to be suitable for higher power and higher temperature oven cooking and more stable oven temperature control design. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described in the following are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 It is a structural schematic diagram of a microwave oven provided by an embodiment of the present application which omits the top plate and back plate of the shell;

[0030] Figure 2 It is a front cut schematic diagram of a microwave oven provided by an embodiment of the present application;

[0031] Figure 3 It is a structural schematic diagram of a microwave oven provided by an embodiment of the present application;

[0032] Figure 4 It is a front schematic diagram of a microwave oven provided by an embodiment of the present application.

[0033] In the drawings, there are:

[0034] 1, shell; 10, foot pad; 1111, air inlet structure; 2, oven body; 3, oven panel; 4, button panel; 51, back heat dissipation channel; 511, heat dissipation fan; 512, heat insulation plate; 5121, first flange baffle; 5122, second flange baffle; 513, sensor support; 514, temperature sensor; 52, top heat dissipation channel; 521, auxiliary heat dissipation cavity; 5211, first air guide hole; 5212, cross-flow fan; 522, air guide plate; 523, third baffle; 53, top air outlet; 54, bottom heat dissipation channel; 55, bottom air outlet. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described clearly and completely in the following with reference to the drawings in the present embodiment. Obviously, the described embodiment is one embodiment of the present application, rather than all the embodiments. Based on the present embodiment of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] Please refer to Figures 1 to 4The utility model discloses an embodiment provides a kind of microwave oven, including shell 1 and the oven furnace body 2 of being installed in the inside of shell 1, oven furnace body 2 one end is equipped with oven panel 3, between the other end of shell 1 and oven furnace body 2 is equipped with back heat dissipation channel 51, top between back heat dissipation channel 51 and oven panel 3 is equipped with top heat dissipation channel 52, and bottom between its two is equipped with bottom heat dissipation channel 54, back heat dissipation channel 51 is connected with top heat dissipation channel 52, bottom heat dissipation channel 54 respectively, top heat dissipation channel 52 and oven panel 3 top are equipped with top air outlet 53 between, bottom heat dissipation channel 54 and oven panel 3 bottom are equipped with bottom air outlet 55 between, back heat dissipation channel 51 is equipped with the heat dissipation fan 511 for carrying out heat dissipation temperature control to oven furnace body 2, top heat dissipation channel 52 is equipped with at least one cross-flow fan 5212 on the side close to back heat dissipation channel 51, and the left side plate and / or right side plate and / or back plate of shell 1 is equipped with air inlet hole structure 1111 on the side close to back heat dissipation channel 51.

[0037] Top heat dissipation channel 52 is equipped with auxiliary heat dissipation cavity 521 on the side close to back heat dissipation channel 51, cross-flow fan 5212 is installed in auxiliary heat dissipation cavity side wall, and auxiliary heat dissipation cavity 521 bottom is equipped with a plurality of first air guide hole 5211 being connected with back heat dissipation channel 51, and auxiliary heat dissipation cavity 521 top is connected with top heat dissipation channel 52.

[0038] Cross-flow fan 5212 is provided as two.

[0039] In addition, an embodiment of the utility model provides a kind of microwave oven, and one of preferred implementation is as follows: the left side plate and right side plate and back plate of shell 1 are equipped with air inlet hole structure 1111 on the side close to back heat dissipation channel 51, the air inlet of one cross-flow fan 5212 is aligned with the air inlet hole structure 1111 of the left side plate of shell 1, and the air inlet of another cross-flow fan 5212 is aligned with the air inlet hole structure 1111 of the right side plate of shell 1, so that cross-flow fan 5212 can be easily sucked into the air inlet on air inlet hole structure 1111, and the structure design is the preferred embodiment for realizing the larger outdoor air volume and higher air convection speed.

[0040] The heat dissipation fan 511 is provided with a heat insulation plate 512, which comprises a first flange baffle 5121 arranged at a left end of the heat dissipation fan 511 and a second flange baffle 5122 arranged at a right end of the heat dissipation fan 511. The first flange baffle 5121 and the second flange baffle 5122 arranged at the left and right ends of the heat insulation plate 512 can reduce the air flow generated by the heat dissipation fan 511 and the turbulence in the back heat dissipation channel 51, and can improve the air flow generated by the heat dissipation fan 511 to flow upwards and downwards, so that the heat is more accurately transferred to the top heat dissipation channel 52 and the bottom heat dissipation channel 54.

[0041] The microwave oven further comprises a temperature sensor 514 arranged on one side of the heat dissipation fan 511 and used for measuring the temperature of the oven body 2. After the temperature sensor 514 measures the temperature, the temperature signal is fed back to the electric control module of the oven body 2, so as to adjust the balance between the heating pipe of the oven body 2 and the heat dissipation rate of the heat dissipation fan 511.

[0042] The microwave oven further comprises a sensor bracket 513 arranged on one side of the heat dissipation fan 511, and the temperature sensor 514 is arranged on the sensor bracket 513. The sensor bracket 513 has a "U" shape, so as to block the heat flow blown by the heat dissipation fan 511 and accumulate heat on the temperature sensor 514. A high-temperature silica gel sheet (not shown in the drawings) is attached to the bottom of the sensor bracket 513, so as to avoid that the temperature on the oven body 2 is directly transmitted to the sensor bracket 513, thereby avoiding that the high temperature on the sensor bracket 513 causes the temperature sensor 514 to malfunction.

[0043] A third baffle 523 is arranged on the top between the oven panel 3 and the oven body 2. The third baffle 523 can avoid that the air in the top heat dissipation channel 52 enters the front of the oven body 2, so that only the top air outlet 53 can blow air at the front of the top heat dissipation channel 52. This structure forms that the rear cross-flow fan 5212 has large air inlet and high air inlet speed, and the front top air outlet 53 has small air outlet, which causes a large pressure difference between them. The pressure difference greatly increases the air outlet and air outlet speed of the top air outlet 53, thereby improving the heat dissipation and temperature control capability, and quickly taking away the surface temperature of the oven panel 3, so that the surface temperature of the oven panel 3 is reduced.

[0044] The top heat dissipation channel 52 is provided with air guide plates 522 arranged at the left and right ends close to the oven panel 3. The air guide plates 522 facilitate the cross-flow fan 5212 to guide the hot air to the top air outlet 53.

[0045] The oven panel 3 is provided with a key panel 4 on the top.

[0046] The shell 1 is provided with a plurality of foot pads 10 on the bottom.

[0047] The heat dissipation principle of the microwave oven is as follows:

[0048] The heat dissipation channel in the oven is composed of the back heat dissipation channel 51, the top heat dissipation channel 52 and the bottom heat dissipation channel 54,

[0049] Firstly, the oven body 2 is used for rapid heating to heat food quickly, and the oven body 2 is used for heating and cooking food at a certain constant temperature,

[0050] Then, the oven body 2 is heated by the internal heating pipe, and is cooled by the heat dissipation fan 511 at one end, the air speed of the heat dissipation fan 511 is controlled, so that the heating pipe and the heat dissipation fan 511 are heated and cooled at the same time, so that the internal temperature of the oven body 2 reaches a certain constant temperature, so as to better cook food,

[0051] Therefore, the microwave oven improves the heat dissipation and temperature control performance of the heat dissipation fan 511, optimizes the heat dissipation channel in the oven, and has the following two heat dissipation paths:

[0052] A. heat dissipation through the back heat dissipation channel 51-> the bottom heat dissipation channel 54-> the bottom air outlet 55

[0053] B. heat dissipation through the back heat dissipation channel 51-> the top heat dissipation channel 52-> the top air outlet 53,

[0054] Further,

[0055] ① The first and second flange wind baffles 5121 and 5122 at the left and right ends of the heat insulation plate 512 block the air on both ends of the heat dissipation fan 511, so that the heat dissipation fan 511 concentrates the air volume to the top heat dissipation channel 52 and the bottom heat dissipation channel 54,

[0056] ② The air inlet hole structure 1111 is arranged on the side of the left side plate and / or the right side plate and / or the back plate of the shell 1 close to the back heat dissipation channel 51, the cross-flow fan 5212 draws air from the air inlet hole structure, increases the outdoor air volume between the top heat dissipation channel 52 and the back heat dissipation channel 51, and makes the air convection speed between the two faster, thereby greatly reducing the heat accumulation problem of the back heat dissipation channel 51 (the outdoor air is cold and goes down, the air in the back heat dissipation channel 51 is hot and goes up), thereby increasing the air volume and convection efficiency of the top air outlet 53 of the top heat dissipation channel 52, and facilitating heat dissipation of the heat dissipation fan 511,

[0057] ③ The air guide plates 522 at the left and right ends of the top heat dissipation channel 52 guide the hot air of the cross-flow fan 5212 to the top air outlet 53,

[0058] IV. A third baffle 523 between the oven panel 3 and the oven cavity 2, to avoid air on the top heat dissipation channel 52 entering the front of the oven cavity 2, while forming a front-rear pressure difference, greatly accelerating the air volume and air speed of the top air outlet 53.

[0059] Therefore, the microwave oven greatly improves the heat dissipation and temperature control performance, so as to be more suitable for higher power, higher temperature, and more stable oven temperature control design.

[0060] The preferred embodiments of the utility model are merely used for limiting the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A microwave oven, comprising an outer shell (1) and an oven body (2) mounted inside the outer shell (1), wherein an oven panel (3) is provided at one end of the oven body (2), characterized in that: A back heat dissipation channel (51) is provided between the other end of the outer shell (1) and the oven body (2). A top heat dissipation channel (52) is provided at the top between the back heat dissipation channel (51) and the oven panel (3), and a bottom heat dissipation channel (54) is provided at the bottom between the two. The back heat dissipation channel (51) is respectively connected and communicated with the top heat dissipation channel (52) and the bottom heat dissipation channel (54). A top air outlet (53) is provided between the top heat dissipation channel (52) and the top of the oven panel (3), and a bottom air outlet (55) is provided between the bottom heat dissipation channel (54) and the bottom of the oven panel (3). A heat dissipation fan (511) for dissipating heat and controlling the temperature of the oven body (2) is provided on the back heat dissipation channel (51). At least one cross-flow fan (5212) is provided on one side of the top heat dissipation channel (52) close to the back heat dissipation channel (51). An air inlet hole structure (1111) is provided on one side of the left side plate and / or the right side plate and / or the back plate of the outer shell (1) close to the back heat dissipation channel (51).

2. A microwave oven according to claim 1, characterized in that: An auxiliary heat dissipation cavity (521) is provided on one side of the top heat dissipation channel (52) close to the back heat dissipation channel (51). The cross-flow fan (5212) is installed on the side wall of the auxiliary heat dissipation cavity. A plurality of first air guiding holes (5211) communicating with the back heat dissipation channel (51) are provided at the bottom of the auxiliary heat dissipation cavity (521), and the top of the auxiliary heat dissipation cavity (521) is connected and communicated with the top heat dissipation channel (52).

3. A microwave oven according to claim 1 or 2, characterized in that: The number of the cross-flow fans (5212) is set to two.

4. A microwave oven according to claim 1, characterized in that: A heat insulation plate (512) is installed on the heat dissipation fan (511). The heat insulation plate (512) includes a first flanging wind baffle (512) provided at the left end of the heat dissipation fan (511) and a second flanging wind baffle (5122) installed at the right end of the heat dissipation fan (511).

5. A microwave oven according to claim 1, characterized in that: It further includes a temperature measurement sensor (514) installed on one side of the heat dissipation fan (511) and used for measuring the temperature of the oven body (2).

6. A microwave oven according to claim 5, characterized in that: It further includes a sensor bracket (513) installed on one side of the heat dissipation fan (511). The temperature measurement sensor (514) is installed on the sensor bracket (513). The sensor bracket (513) is in a "C" shape, and a high-temperature silica gel sheet is adhered to the bottom of the sensor bracket (513).

7. The microwave oven according to claim 1, characterized in that: A third wind baffle (523) is installed at the top between the oven panel (3) and the oven body (2).

8. The microwave oven according to claim 1, characterized in that: Air guiding plates (522) are respectively installed at the left and right ends of one side of the top heat dissipation channel (52) close to the oven panel (3).

9. The microwave oven according to claim 1, characterized in that: A key panel (4) is provided at the top of the oven panel (3).

10. The microwave oven according to claim 1, characterized in that: A plurality of feet (10) are provided at the bottom of the outer shell (1).

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