Air duct design structure of fruit dryer

Abstract

The utility model provides an air duct design structure of a fruit dryer, which is applied to the field of fruit dryers and comprises an upper cover, a lower shell, a drying disc, an air supply assembly and a heating assembly, the upper cover and the lower shell are matched and a corresponding space is formed inside; the drying disc is arranged above the space, and the air supply assembly and the heating assembly are arranged below the space. The air supply assembly blows air above the space through the heating assembly and the drying disc from bottom to top; the air supply assembly is composed of a miniature fan and an air conveying pipeline. The wind power of the micro fan is conveyed to the heating assembly and then to the drying disc through the wind conveying pipeline; the air conveying pipeline is divided into a left air duct and a right air duct, the left air duct and the right air duct are both arranged in a groove mode, and the edge of each groove is of a fillet structure. According to the existing method, a large-size motor and a large-size wind wheel (the cost is increased) are generally used, so that extra wind pressure is expected to be generated to make up wind pressure loss in an air duct; or the rotating speed of the fan / motor is increased, but the noise of the product is increased.

Description

Technical Field

[0001] The present application relates to the technical field of humidifiers, and in particular to an air duct design structure of a fruit drying machine. Background Art

[0002] Fruit dryer, also known as food air dryer, fruit and vegetable dehydrator. It is a machine that dries fruits, vegetables, medicinal materials, meat, etc. at low temperature;

[0003] Most of the fan / motor+wind wheel structures of fruit drying machines generate horizontal airflow, then make a sharp turn in a small space (due to the size of the product, and the air outlet needs to be located in the center to ensure uniform drying effect), and blow it vertically upward out of the main machine into the drying plate;

[0004] Most of the dried fruit machines, due to the sharp turns, changes in the cross-section of the air duct, and the obstructions encountered by the heating rack assembly, have a large wind pressure loss and the air volume is significantly reduced;

[0005] Too little air volume means that the wind takes away less heat, the moisture in the food is taken away slowly, and the drying speed is slow;

[0006] The existing practice is usually to use a larger motor + a larger wind wheel (increased cost) to generate additional wind pressure to compensate for the wind pressure loss in the air duct; or to increase the fan / motor speed, but this will increase the noise of the product. Utility Model Content

[0007] The present application aims to solve the technical problem that the existing practice is usually to use a larger motor + a larger wind wheel (increased cost) to generate additional wind pressure to compensate for the wind pressure loss in the air duct; or to increase the fan / motor speed, but the noise of the product will increase, and provide a wind duct design structure for a dried fruit machine.

[0008] This application adopts the following technical means to solve the technical problem:

[0009] An air duct design structure of a fruit drying machine includes an upper cover, a lower shell, a drying plate, an air supply component and a heating component;

[0010] The upper cover is adapted to the lower shell and a corresponding space is formed inside;

[0011] The drying plate is arranged above the space, and the air supply component and the heating component are arranged below the space;

[0012] The air supply component blows air from bottom to top through the heating component and the drying plate to the top of the space;

[0013] The air supply component is composed of a micro fan and an air supply pipeline;

[0014] The wind force of the micro fan is conveyed through the air delivery pipe to the heating component and then to the drying tray;

[0015] The air delivery pipe is divided into a left air duct and a right air duct. Both the left air duct and the right air duct are arranged in grooves, and the edges of the grooves are rounded structures. A flow guide plate is provided at the groove relative to the wind direction outlet.

[0016] Furthermore, the flow guide plate is inclined and arranged in the groove.

[0017] Furthermore, there is a connecting piece between the upper cover and the lower shell.

[0018] Furthermore, the air ducts are arranged in mirror symmetry on both sides.

[0019] Furthermore, the heating component includes a heating bracket and a heating wire. The heating bracket is arranged in a cross shape above the air delivery pipe, and the heating wire is wound around the heating bracket.

[0020] Furthermore, the side surface of the heating bracket is provided with three grooves.

[0021] Furthermore, the lower cover is also provided with an air suction port and heat dissipation holes.

[0022] Furthermore, the lower cover further includes a control panel, and the control panel is arranged on the outer side wall of the lower cover.

[0023] Furthermore, a partition is also provided between the lower cover and the drying tray.

[0024] The present application provides an air duct design structure of a dried fruit machine, which has the following beneficial effects: through the upper cover, the lower shell, the drying tray, the air supply component and the heating component; the upper cover and the lower shell are adapted to each other and form a corresponding space inside; the drying tray is arranged above the space, and the air supply component and the heating component are arranged below the space; the air supply component blows from bottom to top through the heating component and the drying tray to the upper part of the space; the air supply component is composed of a micro fan and an air delivery pipe; the wind force of the micro fan is conveyed through the air delivery pipe to the heating component and then to the drying tray; the air delivery pipe is divided into a left air duct and a right air duct. Both the left air duct and the right air duct are arranged in grooves, and the edges of the grooves are rounded structures. A flow guide plate is provided at the groove relative to the wind direction outlet; it is capable of solving the technical problems that the current existing method usually uses a larger-sized motor + a larger-sized wind wheel (cost increases) in order to generate additional air pressure to make up for the air pressure loss in the air duct; or increasing the speed of the fan / motor, but this will increase the noise of the product. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the air duct design structure of the dried fruit machine of the present application;

[0026] Figure 2 Exploded view of the overall structure of an embodiment of the air duct design structure of the dried fruit machine of the present application;

[0027] Figure 3 Schematic diagram of the lower cover structure of an embodiment of the air duct design structure of the dried fruit machine of the present application.

[0028] For the realization of the purpose, functional features and advantages of the present application, further explanations will be made with reference to the embodiments and the accompanying drawings. Specific embodiments

[0029] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0031] It should be noted that the terms "including", "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned accompanying drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices. In the terms in the claims, specification and specification drawings of the present application, relational terms such as "first" and "second" are only used to distinguish one entity / operation / object from another entity / operation / object, and do not necessarily require or imply any such actual relationship or order between these entities / operations / objects.

[0032] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0033] Refer to the attached Figures 1-3 , Schematic diagram of the structure of the air duct design structure of the dried fruit machine in an embodiment of the present application;

[0034] An air duct design structure of a dried fruit machine, comprising an upper cover 3, a lower shell 1, a drying tray 2, a air supply assembly and a heating assembly;

[0035] The upper cover 3 is adapted to the lower shell 1 and a corresponding space is formed inside;

[0036] The drying tray 2 is arranged above the space, and the air supply assembly and the heating assembly are arranged below the space;

[0037] The air supply assembly blows upward through the heating assembly and the drying tray 2 to the upper part of the space;

[0038] The air supply assembly consists of a micro fan 6 and an air duct 11;

[0039] The wind power of the micro fan 6 is conveyed by the air duct 11 to the heating assembly and then to the drying tray 2;

[0040] The air duct 11 is divided into a left air duct and a right air duct. Both the left air duct and the right air duct are arranged in grooves, and the edges of the grooves are rounded structures. A flow guide plate 10 is arranged at the groove relative to the wind direction outlet.

[0041] In this embodiment, the flow guide plate 10 is inclined and arranged in the groove.

[0042] There is a connecting piece 7 between the upper cover 3 and the lower shell 1.

[0043] In this embodiment, the air ducts are arranged in a mirror image on both sides.

[0044] The lower cover further includes a control panel 4, and the control panel 4 is arranged on the outer side wall of the lower cover.

[0045] There is also a partition 5 between the lower cover and the drying tray 2.

[0046] Specifically, in order to improve the overall wind power utilization rate, first, during use, the user will place the items to be air-dried on the drying tray 2. There are 5 drying trays 2, and the drying trays 2 are arranged in parallel in a stacked manner above the heating assembly. After placing the items on the drying tray 2, the user inputs relevant instructions to the control panel 4, such as setting the timing, temperature, wind power, etc. Then the dried fruit machine starts to work, and the micro fan 6 starts to work, conveying wind power to the air duct 11. The air duct 11 guides the wind power to the heating assembly. The wind power is heated by the heating assembly into dry hot air and then air-dries the 5 drying trays 2 in the space from bottom to top. After reaching the preset data, the work is ended, and the air-dried items are removed;

[0047] Among them, the traditional practice is to enlarge the cross-sectional area of ​​the air duct 11 in a certain area to establish a buffer zone, so that the wind speed is greatly reduced. This is to minimize the wind pressure loss when the wind flow encounters cross-sectional changes / obstacles / turns. It is similar to the situation where 4 high-speed lanes pass 15 toll gates and then enter 4 lanes. The speed of a single car is reduced at the toll gate, but the traffic volume on the high-speed lane does not change much and is not significantly affected. This is a typical practice of exchanging space for time. Due to the sharp turn, the cross-sectional change of the air duct 11, and the obstacles encountered by the combination of the heating bracket 8, the wind pressure loss is large and the air volume is significantly reduced. Too small an air volume means that the wind takes away less heat, the moisture in the food is taken away slowly, and the drying speed is slow;

[0048] In this application, the emphasis is on the fact that the cross-sectional area of ​​the same wind duct is enlarged in a certain area to establish a buffer zone, so that the wind speed is greatly reduced. This is to minimize the wind pressure loss when the wind flow encounters cross-sectional changes / obstacles / turns. In addition, the space on both sides is used to guide the wind flow to flow in the opposite direction and upward, increasing the length of the wind duct, which is equivalent to slowing down the bend;

[0049] Similarly, the space on both sides of the air duct 11 is cleverly utilized, and the length of the air duct 11 is lengthened by the reverse flow guiding method to make the curve gentler; in addition, the cross-sectional area of ​​the air duct 11 is enlarged to greatly reduce the wind speed, thereby reducing the wind pressure and air volume loss when the wind flow encounters cross-sectional changes / obstacles / turns. It can also be seen from the figure that the height of the two air ducts 11 is also enlarged, and the mica sheets are disconnected to avoid blocking the backward and upward wind flow;

[0050] Based on the above characteristics, it is possible to effectively reduce the wind pressure and air volume loss when the wind flow changes in cross section / encounters obstacles / turns. Based on this advantage, it is possible to use a small-sized motor + wind wheel or micro fan 6, which not only reduces costs, but also has relatively low noise.

[0051] In this embodiment, the heating assembly includes a heating bracket 8 and a heating wire 9 . The heating bracket 8 is arranged in a cross shape above the air duct 11 , and the heating wire 9 is wound around the heating bracket 8 .

[0052] The side surface of the heating bracket 8 is provided with three grooves.

[0053] The lower cover is also provided with an air suction port and a heat dissipation hole.

[0054] Specifically, when the heating component is working, first, the heating bracket 8 supports and fixes the heating wire 9. The heating wire 9 is wound around the four sides of the heating bracket 8, and each of the four sides has three grooves, so that the heating wire 9 can be evenly arranged around, so that the wind delivered through the air duct 11 is evenly blown to the drying plate 2 through the heated heating wire 9, thereby completing the function of air drying the items on the drying plate 2.

[0055] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wind duct design structure of a fruit drying machine, characterized in that: It includes an upper cover, a lower shell, a drying plate, an air supply component and a heating component; The upper cover is adapted to the lower shell and a corresponding space is formed inside; The drying plate is arranged above the space, and the air supply component and the heating component are arranged below the space; The air supply component blows air from bottom to top through the heating component and the drying plate to the top of the space; The air supply component is composed of a micro fan and an air supply pipeline; The wind power of the micro fan is transported through the air delivery duct to the heating component and then to the drying plate; The air delivery duct is divided into a left air duct and a right air duct. The left air duct and the right air duct are both provided with grooves, and the edges of the grooves are rounded structures. A guide plate is provided at the groove relative to the wind direction outlet.

2. The air duct design structure of the dried fruit machine according to claim 1 is characterized in that: The guide plate is arranged in an inclined manner in the groove.

3. The air duct design structure of the dried fruit machine according to claim 1 is characterized in that: A connecting piece is provided between the upper cover and the lower shell.

4. The air duct design structure of the dried fruit machine according to claim 1 is characterized in that: The air ducts are arranged in mirror image on both sides.

5. The air duct design structure of the dried fruit machine according to claim 1 is characterized in that: The heating component comprises a heating support and a heating wire. The heating support is arranged above the air supply duct in a cross shape, and the heating wire is wound around the heating support.

6. The air duct design structure of the dried fruit machine according to claim 5, characterized in that: The side surface of the heating bracket is provided with three grooves.

7. The air duct design structure of the dried fruit machine according to claim 1, characterized in that: The lower shell is also provided with an air suction port and heat dissipation holes.

8. The air duct design structure of the dried fruit machine according to claim 1, characterized in that: The lower shell further comprises a control panel, and the control panel is arranged on the outer side wall of the lower shell.

9. The air duct design structure of the dried fruit machine according to claim 1, characterized in that: A partition is also provided between the lower shell and the drying plate.

Images