A microwave leakage protection device for an industrial microwave oven

Abstract

This utility model relates to the field of microwave defrosting equipment technology and discloses a microwave leakage protection device for an industrial microwave oven. It includes a base, with a microwave generating chamber mounted on the upper side of the base. An LED industrial control panel is mounted on one side of the microwave generating chamber, and suppression channel tubes are connected to both sides of the microwave generating chamber. This utility model reduces the possibility of microwave leakage by installing a shielding oil tank around the suppression channel tubes, adding composite functional shielding oil or special application shielding oil (such as perfluoropolyether oil or benzyl silicone oil) to the shielding oil tank, and further adding shielding fillers and conductive fillers (such as carbon black, graphene, carbon nanotubes, etc.) to the shielding oil. This is achieved by absorbing and attenuating electromagnetic waves through loss, or by adding metal powders such as silver, copper, and nickel, or silver-plated fibers to form a conductive network that reflects electromagnetic waves.

Description

Technical Field

[0001] This utility model relates to the field of microwave defrosting equipment technology, and in particular to a microwave leakage protection device for an industrial microwave oven. Background Technology

[0002] The working principle of microwave defrosting equipment is to use high-frequency electromagnetic waves between 300MHz and 300GHz to directly act on the ice crystal structure inside the food, causing it to heat up rapidly to a suitable temperature, thereby achieving rapid defrosting. The main function of the suppression channel in microwave defrosting equipment is to prevent microwave leakage and ensure the safety of operators. Microwave defrosting equipment is usually equipped with microwave leakage suppressors. These suppressors are installed in the microwave inlet and outlet base and the housing, which can effectively prevent microwave leakage and ensure the safety of operators. However, the suppression channels of existing microwave defrosting equipment generally have the problem of insufficient microwave shielding.

[0003] For example, a microwave suppression channel and a microwave defrosting device are disclosed in Chinese utility model patent with announcement number CN213639553U. This solution shields the microwaves in the suppression channel by setting a spiral circulating water pipe on the side wall of the inner shell. However, water has limited ability to absorb and reflect high-frequency electromagnetic waves, which may lead to microwave leakage.

[0004] Based on this, a microwave leakage protection device for industrial microwave ovens that can solve the above problems is proposed. Utility Model Content

[0005] To address the technical problem of microwave leakage in microwave defrosting equipment, this utility model provides a microwave leakage protection device for industrial microwave ovens.

[0006] This utility model is achieved using the following technical solution: a microwave leakage protection device for an industrial microwave oven, comprising a base, a microwave generating chamber mounted on the upper side of the base, an LED industrial control panel mounted on one side of the microwave generating chamber, suppression channel pipes connected to both sides of the microwave generating chamber, a first sealing plate and a second sealing plate fixedly connected to the periphery of each suppression channel pipe, a shielding oil tank fixedly connected between the first sealing plate and the second sealing plate, the side of the first sealing plate away from the shielding oil tank fixedly connected to one side of the microwave generating chamber, a shielding material stirring mechanism installed inside the shielding oil tank, and a baffle protection mechanism provided on the side of the suppression channel pipe away from the microwave generating chamber.

[0007] As a further improvement to the above solution, the shielding material stirring mechanism includes multiple driven gears rotatably connected to one side of the second sealing plate. The multiple driven gears are arranged in a circumferential array. One side of each driven gear extends into the shielding oil tank and is fixedly connected to an auger stirring blade. A gear drive mechanism for rotating the driven gears is provided on one side of the second sealing plate.

[0008] As a further improvement to the above solution, the gear drive mechanism includes a gear ring that is rotatably connected to the outside of the suppression channel tube. The gear ring meshes with each of the driven gears simultaneously. A gear ring drive mechanism for rotating the gear ring is provided on the upper side of the shielding oil tank.

[0009] As a further improvement to the above solution, the gear ring drive mechanism includes a servo motor mounted on the upper side of the shielded oil tank, and a drive gear is fixedly connected to the output end of the servo motor, the drive gear meshing with the gear ring.

[0010] As a further improvement to the above solution, the shield protection mechanism includes a protective seat fixedly connected to one side of the second sealing plate. The protective seat has a feed inlet on the side away from the second sealing plate, and the feed inlet is connected to one end of the suppression channel pipe.

[0011] As a further improvement to the above solution, the upper side of the shielded oil tank is connected to a filling pipe, the lower side of the shielded oil tank is connected to a drain pipe, and a solenoid valve is provided on one side of the drain pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model reduces the possibility of microwave leakage by installing a shielding oil tank in the outer space of the suppression channel tube, adding composite functional shielding oil or special application shielding oil such as perfluoropolyether oil or benzyl silicone oil into the shielding oil tank, and adding shielding filler and conductive filler such as carbon black, graphene, carbon nanotubes and other non-metallic conductive materials to the shielding oil. This is achieved by absorbing and attenuating electromagnetic waves through absorption loss, or by adding metal powders such as silver, copper, and nickel or silver-plated fibers to form a conductive network that reflects electromagnetic waves.

[0014] 2. This utility model uses a servo motor to drive the drive gear to rotate, which in turn drives multiple auger stirring blades to rotate through a gear ring. This fully stirs the shielding filler added to the shielding tank, preventing the shielding filler from piling up downwards. This achieves the effect of fully absorbing or reflecting microwaves, thereby improving the overall shielding performance of the shielding tank against microwaves. Attached Figure Description

[0015] Figure 1A schematic diagram of the overall structure of a microwave leakage protection device for an industrial microwave oven provided by this utility model;

[0016] Figure 2 for Figure 1 A partial structural diagram;

[0017] Figure 3 for Figure 2 Side view;

[0018] Figure 4 for Figure 3 A sectional view;

[0019] Figure 5 for Figure 4 A schematic diagram of the explosion structure.

[0020] Explanation of key symbols:

[0021] 1. Base; 2. Microwave generator housing; 3. Shielding oil tank; 4. Filling pipe; 5. Servo motor; 6. Drive gear; 7. Protective seat; 8. Drain pipe; 9. No. 1 sealing plate; 10. No. 2 sealing plate; 11. Driven gear; 12. Gear ring; 13. Feed inlet; 14. Suppression channel pipe; 15. Screw agitator blade. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example:

[0024] Please combine Figures 1-3 This embodiment of a microwave leakage protection device for an industrial microwave oven includes a base 1, and a microwave generator box 2 is installed on the upper side of the base 1. It adopts a modular design, and each box is independently configured with a microwave generator, waveguide and cavity, which can be connected in series to form a tunnel structure. An LED industrial control panel is installed on one side of the microwave generator box 2. Parameters are set through the LED industrial control panel, and the rotation speed of the servo motor 5 is controlled.

[0025] Please combine Figure 4 As shown, the microwave generator box 2 has suppression channel tubes 14 connected to both sides. The suppression channel tube 14 is a cylindrical structure with a hollow cavity structure and a material inlet and outlet channel inside.

[0026] Please combine Figure 4 and Figure 3As shown, a No. 1 sealing plate 9 and a No. 2 sealing plate 10 are fixedly connected to the periphery of each side of the suppression channel tube 14. A shielding oil tank 3 is fixedly connected between the No. 1 sealing plate 9 and the No. 2 sealing plate 10. Perfluoropolyether oil and shielding filler metal powder are added to the shielding oil tank 3.

[0027] The side of the No. 1 sealing plate 9 away from the shielding oil tank 3 is fixedly connected to the side of the microwave generating box 2. The shielding oil tank 3 is equipped with a shielding material stirring mechanism, and the side of the suppression channel pipe 14 away from the microwave generating box 2 is equipped with a baffle protection mechanism.

[0028] Please combine Figure 3 As shown, the shielding material stirring mechanism includes four driven gears 11 rotatably connected to one side of the second sealing plate 10. The four driven gears 11 are arranged in a circumferential array. One side of each driven gear 11 extends into the shielding oil tank 3 and is fixedly connected to an auger stirring blade 15. By rotating the auger stirring blade 15, the shielding additive in the shielding oil tank 3 can be disturbed, so that it is evenly distributed, improving the microwave reflection capability and improving the leakage prevention effect.

[0029] A gear drive mechanism for rotating the driven gear 11 is provided on one side of the second sealing plate 10.

[0030] Please combine Figure 3 As shown, the gear drive mechanism includes a gear ring 12 rotatably connected to the outside of the suppression channel tube 14, and bearings are installed on the inner side of the gear ring 12 and the outer side of the suppression channel tube 14.

[0031] Please combine Figure 3 As shown, the gear ring 12 meshes with each driven gear 11 simultaneously, and a gear ring drive mechanism for rotating the gear ring 12 is provided on the upper side of the shielded oil tank body 3.

[0032] Please combine Figure 3 As shown, the gear ring drive mechanism includes a servo motor 5 installed on the upper side of the shielded oil tank 3. The servo motor 5 communicates with the LED industrial control panel. The output end of the servo motor 5 is fixedly connected to the drive gear 6. The drive gear 6 meshes with the gear ring 12. The servo motor 5 drives the drive gear 6 to rotate, and the rotation of the drive gear 6 drives multiple driven gears 11 to rotate simultaneously.

[0033] Please combine Figure 2 As shown, the shield protection mechanism includes a protective seat 7 fixedly connected to one side of the second sealing plate 10, which prevents foreign objects from entering the toothed ring 12.

[0034] Please combine Figure 3 As shown, the protective seat 7 has a feed inlet 13 on the side away from the second sealing plate 10, and the conveyor belt can transport the thawed products through the feed inlets 13 at both ends.

[0035] The feed inlet 13 is connected to one end of the suppression channel tube 14.

[0036] Please combine Figure 1 and Figure 3 As shown, the upper side of the shielding oil tank 3 is connected to the filling pipe 4, and the lower side of the shielding oil tank 3 is connected to the drain pipe 8. A solenoid valve is installed on one side of the drain pipe 8. When it is necessary to replace or clean the shielding oil and additives in the shielding oil tank 3, the drain pipe 8 can be opened to discharge the oil.

[0037] The implementation principle of a microwave leakage protection device for an industrial microwave oven in this application embodiment is as follows: perfluoropolyether oil is added into the shielding oil tank 3 through the filling pipe 4, and then shielding additives and nickel metal powder are added.

[0038] Frozen products to be thawed are placed on a conveyor belt. The conveyor belt enters the suppression channel tube 14 through the feed inlet 13 and then conveys the products into the microwave generator box 2. When the microwave generator in the microwave generator box 2 is working, the microwaves escape into the suppression channel tubes 14 at both ends through reflection. The servo motor 5 drives the drive gear 6 to rotate, the drive gear 6 drives the gear ring 12 to rotate, and the gear ring 12 drives multiple driven gears 11 to rotate. Each driven gear 11 drives the auger stirring blade 15 located inside the shielding oil tank 3 to rotate, which can stir the nickel metal powder added to the shielding oil tank 3, so that the metal powder in the entire shielding oil tank 3 is stirred and evenly distributed. The shielding oil in the shielding oil tank 3 can promote microwave attenuation, while the shielding additives can reflect microwaves, thereby achieving the function of preventing microwave leakage.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Those skilled in the art can make their own interpretations based on this utility model.

[0040] Any non-substantial changes or substitutions made are within the scope of protection claimed by this utility model.

Claims

1. A microwave leakage protection device for an industrial microwave oven, comprising a base (1), characterized in that, A microwave generating box (2) is installed on the upper side of the base (1). An LED industrial control panel is installed on one side of the microwave generating box (2). Suppression channel pipes (14) are connected to both sides of the microwave generating box (2). A first sealing plate (9) and a second sealing plate (10) are fixedly connected to the periphery of each side of the suppression channel pipe (14). A shielding oil tank (3) is fixedly connected between the first sealing plate (9) and the second sealing plate (10). The side of the first sealing plate (9) away from the shielding oil tank (3) is fixedly connected to the side of the microwave generating box (2). A shielding material stirring mechanism is installed inside the shielding oil tank (3). A baffle protection mechanism is provided on the side of the suppression channel pipe (14) away from the microwave generating box (2).

2. A microwave leakage protection device for an industrial microwave oven as claimed in claim 1, characterized in that, The shielding material stirring mechanism includes a plurality of driven gears (11) rotatably connected to one side of the second sealing plate (10). The plurality of driven gears (11) are arranged in a circumferential array. One side of each driven gear (11) extends into the shielding oil tank (3) and is fixedly connected to an auger stirring blade (15). A gear drive mechanism for rotating the driven gears (11) is provided on one side of the second sealing plate (10).

3. A microwave leakage protection device for an industrial microwave oven as claimed in claim 2, characterized in that, The gear drive mechanism includes a gear ring (12) rotatably connected to the outside of the suppression channel tube (14). The gear ring (12) meshes with each of the driven gears (11) simultaneously. The upper side of the shielding oil tank body (3) is provided with a gear ring drive mechanism that rotates the gear ring (12).

4. A microwave leakage shielding device for an industrial microwave oven as claimed in claim 3, characterized in that, The gear ring drive mechanism includes a servo motor (5) installed on the upper side of the shielded oil tank (3), and a drive gear (6) is fixedly connected to the output end of the servo motor (5), which meshes with the gear ring (12).

5. The microwave leakage protection apparatus for an industrial microwave oven according to claim 1, wherein The shield protection mechanism includes a protective seat (7) fixedly connected to one side of the second sealing plate (10). The protective seat (7) has a feed inlet (13) on the side away from the second sealing plate (10). The feed inlet (13) is connected to one end of the suppression channel pipe (14).

6. The microwave leakage shielding device for an industrial microwave oven according to claim 1, wherein The upper side of the shielding oil tank (3) is connected to a filling pipe (4), and the lower side of the shielding oil tank (3) is connected to a drain pipe (8). A solenoid valve is provided on one side of the drain pipe (8).

Images