CN215302937U

CN215302937U - Front and back structural type fruit and vegetable dryer

Info

Publication number: CN215302937U
Application number: CN202121584886.0U
Authority: CN
Inventors: 彭静; 赖德荣
Original assignee: Ningbo Chuntian New Energy Technology Co ltd
Current assignee: Fujian Chuntian New Energy Technology Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-28
Anticipated expiration: 2031-07-13

Abstract

The utility model provides a front and back structural formula fruit vegetables drying-machine, includes the drying-machine main part and gathers wind chassis, the drying-machine main part is including the first room body and the second room body that set up from beginning to end, and one of them room body is equipped with the evaporimeter in order to form the refrigeration room, and another room body is equipped with the condenser in order to form the room that heats, sets up the baffle between two room bodies and forms cold and hot separation, it puts in the drying-machine main part outside to gather the wind chassis, the room that heats is carried the heat in it with the form of hot-air to gather the wind chassis with the mode of side direction air-out through the fan, it is equipped with the top air outlet to gather the wind chassis, and the storage bucket of built-in waiting to dry the material then puts in on the top air outlet. The two chamber bodies are arranged in the front and back to form vertical cold-hot separation, and hot air is discharged from the heating chamber to the external wind gathering chassis, so that the placing height of the charging bucket can be effectively reduced, and the charging bucket is convenient to operate.

Description

Front and back structural type fruit and vegetable dryer

Technical Field

The utility model relates to the technical field of fruit and vegetable drying equipment, in particular to a front and back structural type fruit and vegetable drying machine.

Background

At present, a common fruit and vegetable dryer is generally used in industry, is a large device, and is usually beneficial to a core component, namely an electric heater and the like, to heat fruits and vegetables so as to remove a proper amount of water. However, in the using process, the fruit and vegetable dryer is complex in internal structure, large in overall size and difficult to use for household or miniaturization. And a fan is mostly adopted, air is fed and exhausted from the same direction for cooling and heating, the temperature blown to a charging basket (filled with fruits and vegetables to be dried) is greatly influenced by the ambient temperature, the difference between the air-out temperature and the ambient temperature is only within 6 degrees in an idle state generally, the temperature required by the materials is difficult to reach, if the temperature is required to be reached, the temperature can be increased generally by increasing larger electric heating power, the energy consumption is particularly high, the heating speed is low, the heating temperature is low, and the energy consumption is high.

Therefore, the research and development team of the application especially develops a fruit and vegetable dryer which is particularly suitable for household (of course, the fruit and vegetable dryer can be used industrially) and consists of core components, namely a compressor, a condenser, an evaporator, a throttling component and the like (see patent publication No. CN306516673S, the patent name: a heating dryer, the applicant: Shinewingchun; the patent application name: a double-fan integrated heat pump fruit and vegetable dryer, the applicant: Shinewingchun; the patent application name: a fruit and vegetable drying air duct, the applicant: Shinewingchun). The circulation of the refrigerant in the core component is utilized to obtain hot air (hot air) so as to dry fruits and vegetables in the charging basket (the fruits and vegetables to be dried are filled in the charging basket). In the whole drying process, the fruits and vegetables can be uniformly and effectively dried, and meanwhile, the drying efficiency is high, the heating speed is high, the heating temperature is high, and the energy consumption is low.

However, when in actual use, because of laying of its inner structure for the hot-air outlet is located the top of rectangle organism, and the storage bucket when placing, need lift up and just can surely arrange in on the air outlet behind the high organism top, because storage bucket weight itself is not light, especially after installing the material additional, hardly lifts up the storage bucket and exceeds the organism top alone, generally needs two at least people to cooperate together just can accomplish the proper of storage bucket and place.

Therefore, a fruit and vegetable dryer with an optimized spatial structure is urgently needed to effectively reduce the placement height of the charging basket and realize the placement of the charging basket in a convenient and labor-saving manner.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the front-back structural type fruit and vegetable drying machine, which is optimized in spatial structure arrangement on the premise of ensuring high heating speed, high heating temperature and low energy consumption, can effectively reduce the placement height of a charging basket and is convenient to place.

In order to achieve the purpose, the utility model provides the following technical scheme: a front and back structural type fruit and vegetable dryer comprises a dryer main body and a wind gathering chassis;

the dryer main body comprises a first chamber body and a second chamber body which are arranged in front and back, wherein one chamber body is provided with an evaporator to form a refrigerating chamber, the other chamber body is provided with a condenser to form a heating chamber, and a partition plate is arranged between the refrigerating chamber and the heating chamber to form cold-heat separation;

the air-gathering chassis is placed outside the dryer main body, the heating chamber conveys heat in the heating chamber to the air-gathering chassis in a hot air mode in a lateral air-out mode through a fan, the air-gathering chassis is provided with a top air outlet, and a charging basket filled with materials to be dried is placed on the top air outlet.

In some embodiments, the fan is arranged in the heating chamber, and the fan is provided with a side air outlet which is arranged at the side part of the heating chamber to form side air outlet; preferably, the side air outlet is deviated to the bottom end position of the side part of the heating chamber and is convexly arranged in the mounting opening of the side part of the heating chamber; preferably, the wind-gathering chassis receives hot air in a side-wind manner; preferably, the wind gathering chassis is arranged close to the front side part of the heating chamber, the wind gathering chassis is provided with a side wind inlet, a connecting wind channel is arranged between the wind gathering chassis and the fan, the wind inlet end of the connecting wind channel is connected with the side wind outlet of the fan, and the wind outlet end is connected with the side wind inlet of the wind gathering chassis so that the wind gathering chassis forms side wind; preferably, the vertical height of the air inlet end of the connecting air duct is higher than the vertical height of the air outlet end.

From this hot-air circulates through the mode of side direction air-out, side air inlet, and the special structural design who connects the wind channel with high air inlet end, low air-out end in addition can wholly weigh down the height on wind-gathering chassis, is convenient for further effectively reduce the lifting height of storage bucket, realizes more convenient, laborsaving operation.

In some embodiments, the wind gathering chassis is provided with a side air inlet, and a guide plate is arranged near the side air inlet on the wind gathering chassis; preferably, the guide plate is arranged close to the middle position of the bottom end of the air inlet on the near side; preferably, the air deflector is provided with an outer convex part facing the side air inlet; preferably, the guide plate is one of an arc-shaped plate, a V-shaped plate and a flat plate.

In some embodiments, the outer periphery of the wind gathering chassis forms an outward-convex arc-shaped step, so that the charging bucket can be moved to the top air outlet along the outward-convex arc-shaped step more conveniently and more conveniently in a labor-saving manner to be stably placed, the charging bucket can be prevented from being lifted, and the charging bucket can be placed in a moving manner by one person.

In some embodiments, the dryer main body is provided with a circulation system including an evaporator and a condenser, the circulation system further includes a compressor and a throttling component, the compressor is communicated with the condenser through a pipeline, the condenser is communicated with the throttling component through a pipeline, the throttling component is communicated with the evaporator through a pipeline, the evaporator is communicated with the compressor through a pipeline, a refrigerant flows through the circulation system, and the refrigerant circulates in the compressor, the condenser, the throttling component and the evaporator through pipelines; preferably, the compressor, the condenser and the throttling component are arranged in the heating chamber, and the evaporator is arranged in the refrigerating chamber.

In some embodiments, the bottom end of the partition is connected to the bottom of the dryer body, and the top end of the partition is connected to the top of the dryer body; preferably, the dryer main body space at one side of the partition forms a heating chamber, and the dryer main body space at the other side of the partition forms a cooling chamber.

In some embodiments, the condenser is horizontally arranged in an L shape in the heating chamber, a plurality of vent holes are arranged on the left side wall and the right side wall of the dryer main body between the outer part of the L-shaped condenser and the partition plate, and the fan, the compressor and the throttling component are arranged between the inner part of the L-shaped condenser and the side wall of the dryer main body; preferably, a spacing distance is left between the top of the condenser and the top of the dryer main body.

The evaporator is arranged in the refrigeration chamber in a vertical thick plate shape, and a spacing distance is reserved between the top of the evaporator and the top of the dryer main body; preferably, a plurality of ventilation holes are formed on left and right sides of the dryer body between the evaporator and the partition.

Preferably, a water tank is disposed on the bottom wall of the dryer body at the bottom of the evaporator, and the water tank is provided with a drainage tube to lead out the residual water.

In some embodiments, the dryer body is provided with an exhaust fan for exhausting cold air in the refrigerating chamber; preferably, the exhaust fan is provided on a side wall of the dryer main body adjacent to and opposite to the evaporator.

Compared with the prior art, the utility model provides a front-back structural type fruit and vegetable dryer, which has the following beneficial effects:

1. the refrigeration chamber and the heating chamber are separated by the partition plate, and the two chamber bodies are arranged in front and at the back to form cold-heat separation, so that the air outlet temperature and the temperature rising speed are improved, the temperature rises faster than that of a conventional fruit and vegetable dryer, the temperature is 5-10 ℃ higher, the required auxiliary electric heating power is low, the required temperature can be reached even without electric heating starting, the energy consumption is low, and the problems that the original air outlet is cold-hot mixed air, the temperature is low, and the moisture of materials is taken away are solved;

2. the two chamber bodies are arranged in front and back, the heating chamber conveys heat in the heating chamber to an external wind gathering chassis in a hot air mode through a fan in a lateral wind outlet mode, the hot air is prevented from being output from the top of the heating chamber with higher height (namely the top of the dryer main body), the external wind gathering chassis is arranged at the moment in a matching mode, and the wind gathering chassis is provided with a top wind outlet capable of placing a charging basket, so that the heat in the lower heating chamber can be conveyed to the wind gathering chassis with the charging basket placed in the hot air mode through the fan, and the drying treatment of materials in the charging basket is realized;

according to the utility model, through the arrangement of the structure, the charging basket does not need to be lifted to the top of the dryer main body, the charging basket can be placed only by being placed at the air outlet at the top of the wind gathering chassis, the wind gathering chassis is externally arranged on the dryer main body, and the received hot air comes from the lateral air outlet of the heating chamber, so that the height of the wind gathering chassis can be designed as long as the weight of the charging basket can be borne and the proper spacing distance between the wind gathering chassis and the bottom of the charging basket is ensured, and the height of the wind gathering chassis is greatly lower than that of the dryer main body.

Drawings

FIG. 1 is a schematic structural diagram (showing a material barrel) of a front and rear structural type fruit and vegetable dryer of the present invention in a use state;

FIG. 2 is a schematic view of the overall structure of the front and rear structural type fruit and vegetable dryer of the present invention;

FIG. 3 is a schematic view of the internal structure of the front and rear structure type fruit and vegetable dryer of the present invention;

fig. 4 is a schematic structural diagram of a wind-gathering chassis (a guide plate is an arc-shaped plate);

in the figure: the dryer comprises a dryer main body 1, an air collecting chassis 2, a top air outlet 21, a side air inlet 22, an arc-shaped step 23, an evaporator 3, a condenser 4, a throttling component 5, a compressor 6, a refrigerating chamber 7, a heating chamber 8, a partition plate 9, a charging basket 10, a fan 11, a connecting air channel 12, a guide plate 13, a vent hole 15, an exhaust fan 16 and a water tank 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-4, this embodiment shows a front and back structural type fruit and vegetable dryer. The front and rear structural type fruit and vegetable dryer comprises a dryer main body 1 and a wind gathering chassis 2, wherein the wind gathering chassis 2 is arranged outside the dryer main body 1, and the wind gathering chassis 2 is arranged at a position close to the bottom end of the side part of the dryer main body 1, namely, the height position of the wind gathering chassis 2 is reduced as much as possible.

In this embodiment, a circulation system is provided in the dryer main body 1, and the circulation system includes the following core components: an evaporator 3, a condenser 4, a throttling element 5 and a compressor 6. The compressor 6 is communicated with the condenser 4 through a pipeline, the condenser 4 is communicated with the throttling component 5 through a pipeline, the throttling component 5 is communicated with the evaporator 3 through a pipeline, and the evaporator 3 is communicated with the compressor 6 through a pipeline. A refrigerant circulates through the circulation system, and circulates through the compressor 6, the condenser 4, the throttle member 5, and the evaporator 3 via pipes, so that a hot air zone is formed near the condenser 4 and a cold air zone is formed near the evaporator 3. The specific working principle of the circulation system is described in the reference documents mentioned in the background (the patent application name: a double-fan integrated heat pump fruit and vegetable dryer, the applicant: xiethun).

In this embodiment, the dryer body 1 is provided with a cooling chamber 7 and a heating chamber 8 according to a hot air zone and a cold air zone, the cooling chamber 7 corresponds to the cold air zone, and the heating chamber 8 corresponds to the hot air zone.

For the spatial distribution of the cooling chamber 7 and the heating chamber 8, the heating chamber 8 and the cooling chamber 7 are arranged in front and back in this embodiment, that is, the heating chamber 8 is in front and the cooling chamber 7 is in back. Of course, in other embodiments, the cooling compartment 7 may be the front part of the dryer body, and the cooling compartment 7 is in the front and the heating compartment 8 is in the rear.

In order to achieve the effect of cold-hot separation, a partition plate 9 is arranged between the refrigerating chamber 7 and the heating chamber 8 so as to enable cold-hot front-back separation to be formed in the dryer body 1, the cold and the hot are not crossed, the heating chamber 8 and the refrigerating chamber 7 are not interfered with each other, the temperature of hot air conveyed out by the heating chamber 8 is high, the drying speed is high, and the effect is high.

In this embodiment, the refrigeration chamber 7 is provided with a core evaporator 3, and in operation, low-pressure refrigerant enters the evaporator 3, and the low-pressure liquid state changes into a low-pressure gaseous state, which is heat-absorbing, and the absorbed heat comes from the outer surface of the evaporator 3. Thus, the heat of the air passing through the outer surface of the evaporator 3 is absorbed and taken away by the low-pressure liquid refrigerant inside the evaporator 3, whereby the air temperature is lowered to form a cold air zone constituting the refrigerating compartment 7 of the dryer body 1.

And the heating chamber 8 is internally provided with a core component condenser 4, when in work, the refrigerant is changed into a high-temperature and high-pressure gas state in the compressor 6, after entering the condenser 4, the refrigerant is cooled into a high-pressure liquid state after exchanging heat with air, and the process of changing the gas state into the liquid state releases heat towards the outside, thereby forming the heating chamber 8.

To obtain hot air, in the present embodiment, the wind-collecting chassis 2 is placed outside the dryer body 1 and is disposed near the front side of the dryer body 1. The wind gathering chassis 2 is provided with a top air outlet 21, the charging basket 10 containing materials to be dried is placed at the top air outlet 21, the dryer body 1 conveys heat in the heating chamber 8 to the wind gathering chassis 2 in a side air outlet mode from the heating chamber 8 through the fan 11 in a hot air mode, and the hot air also upwards passes through the top air outlet 21 to dry the materials in the charging basket 10.

Therefore, the hot air is different from the conventional method that the hot air directly enters the charging basket 10 loaded on the top outlet from the top outlet of the dryer body 1, the hot air is output from the front side part of the heating chamber 8 to form lateral air outlet, the output height position of the hot air is greatly reduced, and the placing height of the charging basket 10 can be effectively reduced. Meanwhile, the wind gathering chassis 2 receives lateral wind from the heating chamber 8 outside the dryer body 1, and the structural design of the wind gathering chassis 2 can effectively reduce the height of the wind gathering chassis 2 when the weight of the charging basket 10 is met, namely, the proper spacing distance exists between the bottom of the charging basket 10 to be placed and the inner bottom wall of the wind gathering chassis 2, so that hot air can upwards circulate into the charging basket 10 through the top air outlet 21, and finally the charging basket 10 is convenient to place.

Example two

On the basis of the first embodiment, referring to fig. 1 to 4, details of the specific installation of the wind turbine 11, how the wind gathering chassis 2 is connected with the wind turbine 11, and the like are described.

In this embodiment, the fan 11 is installed in the heating chamber 8, and the fan 11 is provided with a side air outlet installed at the side of the heating chamber 8 to form side air outlet. The side air outlet is deviated to the bottom end position of the side part of the heating chamber 8 and is convexly arranged in the mounting opening of the side part of the heating chamber 8. The wind gathering chassis 2 is arranged close to the bottom end of the outer side part of the heating chamber 8, and the bottom of the wind gathering chassis 2 is flush with the bottom of the dryer body 1 and can be jointly arranged on a foundation or an object stage.

The wind gathering chassis 2 is provided with a side air inlet 22, a connecting air duct 12 is arranged between the wind gathering chassis 2 and the fan 11, an air inlet end of the connecting air duct 12 is connected with a side air outlet of the fan 11, and an air outlet end is connected with the side air inlet 22 of the wind gathering chassis 2 so that the wind gathering chassis 2 forms side air inlet. The vertical height of the air inlet end of the connecting air duct 12 is higher than that of the air outlet end. The height of the wind gathering chassis 2 can be further reduced by the arrangement of the connecting air duct 12, so that the placing height of the charging bucket 10 is further reduced, and the charging bucket 10 is more favorably placed.

Therefore, the heating chamber 8, the fan 11 and the wind gathering chassis 2 are matched together to form a lateral wind outlet mode and a lateral wind inlet mode, and the special structural design that the wind inlet end of the connecting air duct 12 is high and the wind outlet end is low is adopted, so that the design height of the wind gathering chassis 2 is greatly reduced, namely the wind gathering chassis 2 with the optimal structure and the height reduced as much as possible is obtained, finally, the placing height of the charging basket 10 is reduced in the optimal state, and the charging basket 10 is labor-saving and convenient to place, so that excellent contribution is made.

EXAMPLE III

Referring to fig. 1-4, on the basis of the first embodiment, the wind-collecting chassis 2 is provided with a side air inlet 22, and the wind-collecting chassis 2 is provided with a guide plate 13 near the side air inlet 22 to guide the hot air flowing in, so as to uniformly disperse and uniformly merge into the wind-collecting chassis 2 as a whole.

For the arrangement position of the guide plate 13, the guide plate 13 is arranged near the middle of the bottom end of the near-side air inlet 22, so that the purpose of uniform dispersion is further achieved.

For the specific structural design of the air deflector 13, the air deflector 13 is provided with an external convex part facing the side air inlet 22. In this embodiment, the deflector 13 is preferably an arc-shaped plate (refer to fig. 4), and may be a V-shaped plate or a flat plate, although other shapes are not excluded, and it is within the scope of the present invention as long as it has the effects of guiding and dispersing the airflow.

Example four

In addition to the third embodiment, referring to fig. 1 and 4, an outer peripheral portion of the wind collecting chassis 2 forms an outward convex arc-shaped step 23. It should be noted here that the step is actually an arc-like bulge that protrudes outward. The wind-gathering chassis 2 of this structure, especially after designing into circular-arc step to the peripheral part, including the height reduction of wind-gathering chassis 2 itself, when carrying out placing of storage bucket 10, through operation alone, under the prerequisite of not lifting storage bucket 10, alright move storage bucket 10 on circular-arc step 23 to finally move storage bucket 10 on the top air outlet 21 of wind-gathering chassis 2. Therefore, in the placing process of the whole charging bucket 10, the operation can be realized through one person, the charging bucket 10 does not need to be lifted, the operation can be carried out in a moving mode, time and labor are saved, convenience is realized, and meanwhile, the labor cost is also obviously saved.

It is to be understood that, besides the arc-shaped step, the outer peripheral portion of the wind collecting chassis 2 may be formed in other shapes such as a cylindrical shape, and the modifications of these structures are within the scope of the present invention.

EXAMPLE five

On the basis of the first embodiment, referring to fig. 2 and fig. 3, the bottom end of the partition 9 is connected to the bottom of the dryer body 1, and the top end is connected to the top of the dryer body 1. The space of the main body of the dryer in front of the partition 9 forms a heating chamber 8, and the space of the main body of the dryer in the rear of the partition 9 forms a cooling chamber 7.

The condenser 4 is horizontally arranged in the heating chamber 8 in an L shape, and a plurality of vent holes 15 are formed in the left side wall and the right side wall of the dryer main body 1 between the outside of the L-shaped condenser 4 and the partition plate 9 for facilitating air circulation. In order to achieve rapid heat exchange, the ventilation holes 15 are regularly arranged and substantially distributed over the corresponding side walls.

The fan 11, the compressor 6 and the throttling component 5 are arranged between the inside of the L-shaped condenser 4 and the side wall of the dryer main body 1, the special structure of the condenser 4 is fully utilized, the containing space in the L-shaped condenser is large, and the L-shaped condenser can be used for installing the fan 11, the compressor 6 and the throttling component 5. In this embodiment, a distance is left between the top of the condenser 4 and the top of the dryer body 1, that is, the top of the condenser 4 is not in contact with the top of the dryer body 1, and a larger distance is left between the top of the condenser 4 and the top of the dryer body 1 for other circulation.

The evaporator 3 is vertically arranged in the refrigerating chamber 7 in a thick plate shape, and a spacing distance is reserved between the top of the evaporator 3 and the top of the dryer body 1, namely the evaporator is not in contact with the dryer body, so that sufficient gas can circulate. And a plurality of ventilation holes 15 are also formed on the left and right sides of the dryer body 1 between the evaporator 3 and the partition 9, and in order to realize rapid heat exchange, the ventilation holes 15 are also regularly arranged and are substantially distributed over the corresponding side walls.

Can condense out water when considering outside air to meet evaporimeter 3, set up basin 17 in evaporimeter 3 bottom on the diapire of drying-machine main part 1, basin 17 is equipped with the drainage tube in order to draw the residual water, has avoided the residual water to remain in drying-machine main part 1.

In this embodiment, the dryer body 1 is provided with the exhaust fan 16 for exhausting the cold air in the cooling chamber 7, and the exhaust fan 16 is disposed on the rear side wall of the dryer body 1, so that the heat exchange efficiency is accelerated, and the cold air can be exhausted in time. Thereby, the dryer body 1 is also formed in a structure in which cool air is discharged from the rear and hot air is discharged from the heating chamber 8 located at the front in a front side manner.

The front and back structural type fruit and vegetable drying machine disclosed by the utility model has the advantages that the required auxiliary electric heating power is low, the required temperature can be reached even without electric heating starting, the energy consumption is low, and the problems that the conventional air outlet is cold and hot mixed air, the temperature is low, and the water content of materials is less to take away are solved.

The front and rear structural type fruit and vegetable drying machine provided by the utility model realizes front and rear separation of cold and heat, and the refrigerating chamber and the heating chamber are separated by the partition plate and are not mutually influenced, so that the drying efficiency is favorably improved. Meanwhile, the heating chamber is arranged in front, hot air is output to the wind gathering chassis from the position, close to the bottom, in the front of the heating chamber to heat materials, so that the phenomenon that the charging basket is difficultly lifted in a conventional hot air ejection mode is avoided, the placement height of the charging basket is effectively reduced, and even the operation can be realized in a personal moving mode.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a front and back structural formula fruit vegetables drying-machine which characterized in that: comprises a dryer main body and a wind gathering chassis;

2. The fruit and vegetable dryer of claim 1, wherein: the fan is arranged in the heating chamber and is provided with a side air outlet which is arranged at the side part of the heating chamber to form side air outlet.

3. The fruit and vegetable dryer of claim 2, wherein: the side air outlet is deviated to the bottom end position of the side part of the heating chamber and is convexly arranged in the mounting opening of the side part of the heating chamber.

4. The fruit and vegetable dryer of claim 2, wherein: the wind-gathering chassis receives hot air in a side air inlet mode.

5. The fruit and vegetable dryer of claim 4, wherein: the air gathering chassis is arranged close to the front side part of the heating chamber, the air gathering chassis is provided with a side air inlet, a connecting air channel is arranged between the air gathering chassis and the fan, an air inlet end of the connecting air channel is connected with a side air outlet of the fan, and an air outlet end of the connecting air channel is connected with the side air inlet of the air gathering chassis so that the air gathering chassis forms side air inlet.

6. The fruit and vegetable dryer of claim 5, wherein: the vertical height of the air inlet end of the connecting air channel is higher than that of the air outlet end.

7. The fruit and vegetable dryer of claim 1, wherein: the wind gathering chassis is provided with a side air inlet, and a guide plate is arranged near the side air inlet on the wind gathering chassis.

8. The fruit and vegetable dryer of claim 7, wherein: the guide plate is arranged close to the middle of the bottom end of the air inlet on the near side.

9. The fruit and vegetable dryer of claim 8, wherein: the guide plate is provided with an outer convex part facing the side air inlet.

10. The fruit and vegetable dryer of claim 9, wherein: the guide plate is one of an arc-shaped plate, a V-shaped plate and a flat plate.

11. The fruit and vegetable dryer of claim 1, 5 or 7, wherein: the outer periphery of the wind-gathering chassis forms an outward-convex arc-shaped step.

12. The fruit and vegetable dryer of claim 1, wherein: dryer main body is equipped with the circulation system including evaporimeter, condenser, the circulation system still includes compressor and throttle part, the compressor passes through the pipeline switch-on condenser, the condenser passes through pipeline switch-on throttle part, throttle part passes through the pipeline switch-on evaporimeter, the evaporimeter passes through the pipeline switch-on compressor, the circulation has the refrigerant in the circulation system, the refrigerant circulates at compressor, condenser, throttle part, evaporimeter inner loop through the pipeline.

13. The fruit and vegetable dryer of claim 12, wherein: the compressor, the condenser and the throttling component are arranged in the heating chamber, and the evaporator is arranged in the refrigerating chamber.

14. The fruit and vegetable dryer of claim 13, wherein: the bottom end of the partition board is connected with the bottom of the dryer main body, and the top end of the partition board is connected with the top of the dryer main body.

15. The fruit and vegetable dryer as claimed in claim 14, wherein: the main space of the dryer on one side of the clapboard forms a heating chamber, and the main space of the dryer on the other side of the clapboard forms a refrigerating chamber.

16. The fruit and vegetable dryer of claim 15, wherein: the condenser is horizontally arranged in the heating chamber in an L shape, a plurality of vent holes are formed in the left side wall and the right side wall of the dryer body between the outer portion of the L-shaped condenser and the partition plate, and the fan, the compressor and the throttling component are arranged between the inner portion of the L-shaped condenser and the side wall of the dryer body.

17. The fruit and vegetable dryer of claim 16, wherein: and a spacing distance is reserved between the top of the condenser and the top of the dryer main body.

18. The fruit and vegetable dryer of claim 15 or 17, wherein: the evaporator is arranged in the refrigerating chamber in a vertical thick plate shape, and a spacing distance is reserved between the top of the evaporator and the top of the dryer main body.

19. The fruit and vegetable dryer as claimed in claim 18, wherein: a plurality of vent holes are arranged on the left and right side parts of the dryer main body between the evaporator and the partition plate.

20. The fruit and vegetable dryer as claimed in claim 18, wherein: a water tank is arranged at the bottom of the evaporator on the bottom wall of the dryer main body, and a drainage tube is arranged in the water tank to lead out residual water.

21. The fruit and vegetable dryer as claimed in claim 18, wherein: the dryer main body is provided with an exhaust fan which discharges cold air in the refrigeration chamber.

22. The fruit and vegetable dryer of claim 21, wherein: the exhaust fan is disposed on a sidewall of the dryer body adjacent to and opposite to the evaporator.