Infrared thawing device

Abstract

The utility model provides a kind of infrared thawing device, the infrared thawing device includes box, inner bag, infrared lamp pearl, light transmission part and fan, and there is heat source area and to be heated area in inner bag, both are separated by light transmission part;Box and inner bag form cavity and communicate heat source area and to be heated area between.The infrared lamp pearl is located in heat source area, and fan drives airflow to flow from heat source area to to be heated area through light transmission part.Through light transmission part isolation heat source area and to be heated area, fan will be sent to to be heated area for heating food with infrared heating airflow, airflow is subsequently cooled in cavity, and then flows back heat source area and is reheated by infrared lamp pearl, form internal airflow circulation.This cycle not only guarantees that heated airflow continuously directional heating food, but also can take away the heat of infrared lamp pearl and light transmission part, realize heating and heat dissipation cooperation, improve thawing efficiency and equipment stability.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, and in particular to an infrared defrosting device. Background Technology

[0002] Currently, in existing infrared defrosting devices, the infrared lamp beads and the area to be heated are often directly connected without an isolation component. On the one hand, the heat generated by the infrared lamp beads cannot be directionally transferred to the area to be heated through airflow, and a large amount of heat escapes to the outside of the device or dead corners of the cavity. It is necessary to operate at high power continuously to maintain the defrosting temperature, resulting in excessive energy consumption. On the other hand, the infrared lamp beads lack corresponding heat dissipation and circulation settings, which makes them prone to overheating after long-term operation, leading to a decrease in luminous efficiency or lamp bead burnout, thereby shortening the lifespan of the entire infrared defrosting device.

[0003] Therefore, how to achieve coordinated heating and heat dissipation in infrared defrosting devices, and improve defrosting efficiency and equipment stability, has become a pressing technical problem that needs to be solved in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of low heating efficiency and difficulty in heat dissipation of infrared lamp beads in the existing infrared defrosting device, and to provide an infrared defrosting device.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] An infrared defrosting device includes a housing, an inner liner, and infrared LEDs. The inner liner has a heating zone, and a cavity is formed between the housing and the inner liner. The infrared defrosting device also includes a light-transmitting part and a fan. The inner liner also has a heat source zone, and the heat source zone and the heating zone are separated by the light-transmitting part. The fan generates an airflow from the heat source zone through the light-transmitting part to the heating zone. The infrared LEDs are disposed in the heat source zone, and the cavity connects the heat source zone and the heating zone.

[0007] By separating the heat source area and the area to be heated by setting up a light-transmitting part, and connecting the heat source area and the area to be heated by a cavity to form a circulating airflow, in this layout, the fan first sends the airflow heated by infrared to the area to be heated to heat the food. Then the airflow passes through the cavity to be cooled. The cooled airflow is then sent to the heat source area on the side of the infrared lamp bead. After that, the airflow is sent back to the area to be heated by the fan to form a second circulation, thereby realizing the airflow circulation inside the infrared defrosting device. While heating the food, the airflow can also dissipate heat to the infrared lamp bead and the light-transmitting part, realizing the synergy of heating and heat dissipation, improving defrosting efficiency and equipment stability.

[0008] Preferably, the inner liner communicates with the cavity through a first air vent group formed on the inner wall of the heating zone, and the inner liner communicates with the cavity through a second air vent group formed on the inner wall of the heat source zone, wherein the second air vent group is disposed close to the infrared lamp bead;

[0009] And / or, the first air vent group is positioned away from the light-transmitting part.

[0010] The second air vent group is positioned close to the infrared LED beads, allowing the airflow from the fan to quickly absorb the radiant heat generated by the infrared LED beads and dissipate heat from them. The first air vent group is positioned in an area far from the light-transmitting part, ensuring that the airflow from the first air vent group is absorbed to the maximum extent by the food in the area to be heated, thereby ensuring that the airflow temperature entering the cavity and the second air vent group can be used to dissipate heat from the infrared LED beads and the light-transmitting part.

[0011] Preferably, the inner liner has a smooth transition structure at the bend in the heat source area;

[0012] And / or, the infrared LED is disposed on the smooth transition structure;

[0013] And / or, the second air vent group is disposed on the smooth transition structure.

[0014] By setting a smooth transition structure, the volume of the cavity can be enlarged within a limited space, further reducing the temperature of the airflow entering the second air vent. This allows for heat dissipation of the light-transmitting part and infrared lamp beads with a lower-temperature airflow. By placing the infrared lamp beads on the smooth transition structure, the inclined surface of the smooth transition structure can expand the radiation coverage of the infrared lamp beads, allowing infrared rays to more comprehensively irradiate different areas of the food to be heated and reducing radiation blind spots. By placing the second air vent on the smooth transition structure, the arc or inclined transition design formed by the smooth transition structure allows the airflow to enter the heat source area along a smooth path, reducing resistance loss and allowing the fan to achieve efficient airflow circulation with lower power, thereby reducing energy consumption.

[0015] Preferably, both the first air vent group and the second air vent group include two or more openings.

[0016] Multiple openings reduce the velocity and pressure of individual airflows by diverting the airflow, minimizing frictional losses between the airflow and the opening edges, and allowing the airflow to circulate more smoothly in the duct, heat source area, and heating zone. Simultaneously, the dispersed openings can adapt to the complex spatial structure inside the liner, ensuring higher circulation efficiency while maintaining the same total airflow.

[0017] Preferably, the fan is disposed on the light-transmitting part, and the heat source area and the area to be heated are further separated by the fan.

[0018] The light-transmitting section and the fan act as physical barriers, blocking direct airflow exchange between the two areas. This ensures that most airflow can only pass through the pre-designed air duct, the first air vent group, and the second air vent group, preventing disorderly airflow between the two areas. Simultaneously, the fan, positioned at the isolation interface, has its outlet directly connected to the air duct and the heat source area, creating a directional driving force. The airflow propelled by the fan first enters the area to be heated to heat the food, then enters the cavity through the first air vent group, and finally enters the heat source area through the second air vent group to absorb heat from the infrared LEDs.

[0019] Preferably, the fan is located at the center above the area to be heated.

[0020] The fan is located above the center of the area to be heated. The airflow it blows can vertically downwards to cover the entire area of ​​the area to be heated and spread symmetrically in all directions, thus avoiding dead airflow at the bottom caused by side air supply.

[0021] Preferably, in the width direction of the infrared defrosting device, cavities are formed on both sides of the inner liner.

[0022] By setting cavities on both sides of the inner liner, the cavities can serve as symmetrical air ducts, forming a double-sided circulating airflow in conjunction with the fan. The airflow passing through the heating zone can flow simultaneously to the heat source zone through the cavities on both sides, avoiding the flow deviation problem caused by a single-sided air duct.

[0023] Preferably, the fan is an axial flow fan.

[0024] In infrared defrosting devices, by setting up axial fans, the airflow blown out can flow along the fan axis, and the airflow has strong directionality and a small diffusion angle. The stable directional airflow of the axial fans can accurately cover the area to be heated, reduce the ineffective diffusion of airflow to non-target areas of the device, avoid heat waste, and improve heat utilization efficiency.

[0025] Preferably, the material of the light-transmitting part includes glass.

[0026] Glass has extremely low transmittance to mid- and far-infrared rays, which can precisely filter the mid- and far-infrared rays emitted by infrared lamp beads, so that food is only irradiated by near-infrared rays. This avoids the problem of food being hot on the outside and cold on the inside due to concentrated heating of the food surface by mid- and far-infrared rays. By utilizing the penetrating heating function of near-infrared rays, food can also be heated to a certain depth, resulting in more uniform defrosting.

[0027] Preferably, the inner liner is made of aluminum;

[0028] And / or, the material of the enclosure includes thermal insulation material.

[0029] Aluminum has a high thermal conductivity, which allows it to quickly transfer heat generated by infrared lamps or heating elements, reducing temperature differences between different areas of the inner wall of the chamber and preventing heating dead zones caused by poor local heat conduction. This ensures that food in the heating zone is heated more evenly. The insulation material effectively blocks heat exchange between the inside and outside of the chamber, preventing heat generated internally from diffusing into the external environment. This allows the temperature of the heating zone to quickly reach the set value and remain stable, reducing the continuous operating time of the infrared lamps and thus lowering energy consumption.

[0030] The significant advantages of this invention are as follows: By separating the heat source area and the area to be heated through a light-transmitting section, and connecting the two areas with a cavity to create a circulating airflow, the fan first delivers infrared-heated airflow to the area to be heated to heat the food. The airflow then passes through the cavity for cooling, and is subsequently delivered to the heat source area on one side of the infrared lamp. The airflow is then sent back to the area to be heated by the fan, creating a second circulation. This achieves airflow circulation within the infrared defrosting device. While heating the food, the airflow also dissipates heat from the infrared lamp and the light-transmitting section, achieving synergistic heating and cooling, thus improving defrosting efficiency and equipment stability. Furthermore, the light-transmitting section, made of glass, precisely filters the mid- and far-infrared rays emitted by the infrared lamp, ensuring the food is only exposed to near-infrared radiation. This prevents the food from being heated on the outside and cooled on the inside due to concentrated mid- and far-infrared radiation on the surface. The penetrating heating function of near-infrared rays also ensures that the food is heated to a certain depth, resulting in more uniform defrosting. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the internal structure of an infrared defrosting device according to an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the internal airflow circulation of an infrared defrosting device according to an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] Infrared defrosting device 1

[0035] Box 10

[0036] Inner liner 20

[0037] Heat source area 21

[0038] Heating Zone 22

[0039] Inner wall 23

[0040] Smooth transition structure 24

[0041] First Wind Gap Group 231

[0042] Second wind gap group 232

[0043] Opening 2310

[0044] Cavity 30

[0045] Light-transmitting part 40

[0046] 50 infrared LED beads

[0047] Fan 60

[0048] Air outlet 61

[0049] Food 70 Detailed Implementation

[0050] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0051] Example 1

[0052] like Figures 1-2 As shown, this utility model provides an infrared defrosting device 1, which includes a housing 10, an inner liner 20, and infrared LEDs 50 respectively disposed on the left and right sides of the inner liner 20. The inner liner 20 has a heating zone 22 located in the lower space of the inner liner 20. The bottom surface of the heating zone 22 is used to place food 70. A cavity 30 is formed between the housing 10 and the inner liner 20 in the width direction on both the left and right sides. The infrared defrosting device 1 also includes a light-transmitting part 40 and a fan 60. The upper space inside the liner 20 is also provided with a heat source area 21, and the heat source area 21 and the area to be heated 22 are separated by a light-transmitting part 40. A fan 60 is connected to the top of the liner 20, and the air outlet 61 of the fan 60 is flush with the light-transmitting part 40. The fan 60 is used to generate airflow from the heat source area 21 through the light-transmitting part 40 to the area to be heated 22. Two infrared lamp beads 50 are set on the upper left and right sides inside the heat source area 21. The cavities 30 on the left and right sides are respectively connected to the heat source area 21 and the area to be heated 22.

[0053] In this embodiment, the heat source area 21 and the area to be heated 22 are separated by a light-transmitting portion 40, and the cavities 30 on the left and right sides connect the heat source area 21 and the area to be heated 22 to form a circulating airflow. Under this arrangement, as... Figure 2As indicated by the arrows, firstly, the fan 60 can directionally deliver the infrared-heated airflow to the heating zone 22 to heat the food 70. The layout design that separates the heat source zone 21 and the heating zone 22 largely avoids the heated airflow flowing into the heat source zone 21 and wasting heat, thereby improving heating efficiency. Then, the airflow is cooled through the cavities 30 on both sides. The cooled airflow enters the heat source zone 21 on one side of the infrared lamp 50 to dissipate heat from the infrared lamp 50 and the light-transmitting part 40. Afterward, the airflow is sent back to the heating zone 22 from the air outlet 61 of the fan 60, forming an airflow circulation inside the infrared defrosting device 1. This achieves the function of directional heating of the food 70 and heat dissipation of the infrared lamp 50 and the light-transmitting part 40.

[0054] like Figures 1-2 As shown, the inner liner 20 is connected to the cavities 30 on both sides through the first air vent group 231 formed on the left and right sides of the inner wall 23 of the heating zone 22, and the inner liner 20 is connected to the cavities 30 on both sides through the second air vent group 232 formed on the left and right sides of the inner wall 23 of the heat source zone 21. The second air vent group 232 is set close to the infrared lamp bead 50, and the first air vent group 231 is set away from the light-transmitting part 40.

[0055] In this embodiment, by setting the first air vent group 231 and the second air vent group 232, the left and right side cavities 30 are connected to the internal space of the inner liner 20. At the same time, the second air vent group 232 is set close to the infrared lamp bead 50, which allows the airflow flowing out of the cavity 30 to quickly absorb the heat of the infrared lamp bead 50 and dissipate heat from the infrared lamp bead 50. The first air vent group 231 is set in an area away from the light-transmitting part 40, which can extend the airflow path and allow the airflow path flowing out of the first air vent group 231 to absorb heat from the food 70 in the heating area 22 to the greatest extent. This ensures that the airflow entering the cavity 30 and the second air vent group 232 has a low temperature and can be used to dissipate heat from the infrared lamp bead 50 and the light-transmitting part 40.

[0056] like Figures 1-2 As shown, the inner liner 20 has a smooth transition structure 24 at the bends on the left and right sides above the heat source area 21, and the smooth transition structure 24 is chamfered. The infrared lamp beads 50 are set on the smooth transition structure 24, and the second air vent group 232 is set on the smooth transition structure 24.

[0057] In this embodiment, by setting the smooth transition structure 24, the volume of the cavity 30 can be enlarged within a limited space, further reducing the airflow temperature entering the second air vent group 232, thereby dissipating heat from the light-transmitting part 40 and the infrared lamp bead 50 with a lower-temperature airflow. By setting the infrared lamp bead 50 on the smooth transition structure 24, the inclined surface of the smooth transition structure 24 can expand the radiation coverage of the infrared lamp bead 50, allowing infrared rays to more comprehensively irradiate different areas of the food to be heated, reducing radiation blind spots. By setting the second air vent group 232 on the smooth transition structure 24, the arc or inclined transition design formed by the smooth transition structure 24 allows the airflow to enter the heat source area 21 along a smooth path, reducing resistance loss, allowing the fan 60 to achieve efficient airflow circulation with lower power, thereby reducing energy consumption. In this embodiment, the smooth transition structure 24 is designed with a chamfer. In other embodiments, the smooth transition structure 24 can also be designed with rounded corners, elliptical transitions, or other forms. This part belongs to the prior art in this field and will not be described in detail here.

[0058] like Figures 1-2 As shown, both the first air vent group 231 and the second air vent group 232 are provided with two openings on the left and two on the right, for a total of four openings 2310.

[0059] In this embodiment, by providing multiple openings 2310, the velocity and pressure of a single airflow can be reduced, and frictional losses between the airflow and the edges of the openings 2310 can be decreased, allowing the airflow to circulate more smoothly between the heat source area 21 and the area to be heated 22. Simultaneously, the dispersed openings 2310 can adapt to the complex spatial structure inside the inner liner 20, ensuring higher circulation efficiency while maintaining the same total airflow volume. Of course, in other embodiments, the number of openings in the first air vent group 231 or the second air vent group 232 can be adjusted to more than four according to specific airflow volume requirements. This part is prior art in this field and will not be elaborated further here.

[0060] like Figures 1-2 As shown, the fan 60 is mounted on the light-transmitting part 40, and the heat source area 21 and the area to be heated 22 are separated by the fan 60.

[0061] In this embodiment, the light-transmitting part 40 and the fan 60 act as physical barriers, blocking direct airflow exchange between the two areas. This allows most of the airflow to flow only through the preset cavity 30, the first air vent group 231, and the second air vent group 232, preventing disorderly airflow between the two areas. Simultaneously, the fan 60 is located at the isolation interface, with its outlet directly connected to the cavity 30 and the heat source area 21, forming a directional driving force. The airflow propelled by the fan 60 first enters the heating area 22 to heat the food 70, then enters the cavity 30 through the first air vent group 231, and finally enters the heat source area 21 through the second air vent group 232 to absorb heat from the infrared lamp beads 50.

[0062] like Figures 1-2 As shown, the fan 60 is located at the center above the area to be heated 22.

[0063] In this embodiment, by setting the fan 60 at the center above the area to be heated 22, the airflow blown by the fan 60 can vertically downwards to cover most of the area to be heated 22 and diffuse symmetrically in all directions, thereby avoiding dead airflow at the bottom caused by side air supply.

[0064] like Figures 1-2 As shown, cavities 30 are formed on both sides of the inner liner 20 in the width direction of the infrared defrosting device 1.

[0065] In this embodiment, cavities 30 are provided on both sides of the inner liner 20. These cavities 30 serve as symmetrical airflow pathways, forming a dual-sided circulating airflow in conjunction with the fan 60. The airflow passing through the heating zone 22 can simultaneously flow to the heat source zone 21 via the cavities 30 on both sides, avoiding the flow deviation problem caused by only providing a single-sided cavity. Furthermore, the symmetrical airflow distribution is more balanced, reducing local heat supply shortages caused by airflow deviation and improving overall heat exchange efficiency.

[0066] In this embodiment, fan 60 is an axial flow fan.

[0067] In the infrared defrosting device 1, by setting an axial fan, the airflow blown out by the fan 60 can flow along the axial direction of the fan 60. The airflow has strong directionality and small diffusion angle. The stable directional airflow of the axial fan 60 can accurately cover the area to be heated 22, reduce the ineffective diffusion of airflow to non-target areas of the device, and thus improve the heat utilization efficiency.

[0068] In this embodiment, the material of the light-transmitting part 40 includes glass.

[0069] Glass has extremely low transmittance to mid- and far-infrared rays, which can accurately filter the mid- and far-infrared rays emitted by the infrared lamp beads 50, so that the food 70 is only irradiated by near-infrared rays. This avoids the food 70 from being heated on the outside and cold on the inside due to the concentrated heating of the surface by mid- and far-infrared rays. By utilizing the penetrating heating function of near-infrared rays, the food 70 can also be heated to a certain depth, resulting in more uniform defrosting.

[0070] In this embodiment, the inner liner 20 is made of aluminum, and the casing 10 is made of heat-insulating material.

[0071] Aluminum has a high thermal conductivity, which can quickly transfer the heat generated by the infrared lamp beads 50, reducing the temperature difference between different areas of the inner wall 23 of the inner liner 20. This avoids heating dead zones caused by poor local heat conduction, thus ensuring that the food 70 in the heating zone 22 is heated more evenly. The heat insulation material can effectively block heat exchange between the inside and outside of the cabinet 10, preventing the heat generated by internal heating from spreading to the external environment. This allows the temperature of the heating zone 22 to quickly reach the set value and remain stable, reducing the continuous working time of the infrared lamp beads 50 and thus reducing energy consumption.

[0072] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. An infrared defrosting device, comprising a housing, an inner liner, and infrared LEDs, wherein the inner liner has a heating zone, characterized in that, A cavity is formed between the box body and the inner liner. The infrared defrosting device also includes a light-transmitting part and a fan. The inner liner also has a heat source area. The heat source area and the area to be heated are separated by the light-transmitting part. The fan is used to generate airflow from the heat source area through the light-transmitting part to the area to be heated. The infrared lamp beads are disposed in the heat source area. The cavity connects the heat source area and the area to be heated.

2. The infrared defrosting device as described in claim 1, characterized in that, The inner liner communicates with the cavity through a first air vent group formed on the inner wall of the heating zone, and the inner liner communicates with the cavity through a second air vent group formed on the inner wall of the heat source zone. The second air vent group is located close to the infrared lamp beads. And / or, the first air vent group is positioned away from the light-transmitting part.

3. The infrared defrosting device as described in claim 2, characterized in that, The inner liner has a smooth transition structure at the bend in the heat source area; And / or, the infrared LED is disposed on the smooth transition structure; And / or, the second air vent group is disposed on the smooth transition structure.

4. The infrared defrosting device as described in claim 2, characterized in that, Both the first air vent group and the second air vent group include two or more openings.

5. The infrared defrosting device as described in claim 1, characterized in that, The fan is mounted on the light-transmitting part, and the heat source area and the area to be heated are separated by the fan.

6. The infrared defrosting device as described in claim 5, characterized in that, The fan is located at the center above the area to be heated.

7. The infrared defrosting device as described in claim 1, characterized in that, In the width direction of the infrared defrosting device, cavities are formed on both sides of the inner liner.

8. The infrared defrosting device as described in claim 1, characterized in that, The fan is an axial flow fan.

9. The infrared defrosting device as described in claim 1, characterized in that, The material of the light-transmitting part includes glass.

10. The infrared defrosting device as described in claim 1, characterized in that, The inner liner is made of aluminum; And / or, the material of the enclosure includes thermal insulation material.

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