CN216245052U

CN216245052U - A frost-free car refrigerator

Info

Publication number: CN216245052U
Application number: CN202122428934.3U
Authority: CN
Inventors: 徐晨翔; 李顺
Original assignee: Zhejiang Yunge Electric Industrial Co ltd
Current assignee: Zhejiang Yunge Electric Industrial Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-04-08
Anticipated expiration: 2031-10-09

Abstract

A frost-free vehicle-mounted refrigerator belongs to the technical field of vehicle-mounted refrigerators. The utility model comprises a box body, a compressor arranged in the box body, a condenser connected with the compressor, and an evaporator connected with the compressor and the condenser. The heat exchange chamber, the evaporator is arranged on the side of the heat exchange chamber close to the side wall of the box, the other side of the heat exchange chamber is provided with a fan and an air outlet, the heat exchange chamber is provided with a return air outlet on the side of the evaporator, and the evaporator A heating tube is arranged on the side close to the side wall of the box body. The utility model can effectively avoid the formation of frost in the vehicle-mounted refrigerator, so as to ensure the normal use of the vehicle-mounted refrigerator.

Description

Frostless vehicle-mounted refrigerator

Technical Field

The utility model relates to the technical field of vehicle-mounted refrigerators, in particular to a frostless vehicle-mounted refrigerator.

Background

Currently, a vehicle-mounted refrigerator is increasingly widely used due to convenience thereof. However, after the general vehicle-mounted refrigerator is used for a period of time, the frost is formed in the refrigerator, so that the storage space of the narrow box body is further compressed, and the normal use of a user is influenced.

Among the prior art, chinese utility model application as patent number ZL201921861149.3 discloses a take on-vehicle refrigerator of forced air cooling system, refrigerating system in the box is including installing the display panel at a body upper surface, install the heat exchange fan at box top and place the compressor in the box, heat dissipation fan and condenser are installed to ponding box top, the ponding box that compressor and condenser intercommunication pipeline of being convenient for passed has been placed to the bottom of box, be provided with the communicating wind channel with heat exchange fan in the box of compressor one side, install the defrosting heater in the wind channel, install the evaporimeter on the wind channel outer wall in the defrosting heater top temperature sensor outside. Such vehicle-mounted refrigerators often eliminate frost on the evaporator only by heating, but cannot eliminate frost in the refrigerator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a frost-free vehicle-mounted refrigerator, which can effectively avoid frost formation in the vehicle-mounted refrigerator so as to ensure normal use of the vehicle-mounted refrigerator.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a frost-free vehicle-mounted refrigerator, includes the box, locate compressor in the box, connect the condenser of compressor, connect the evaporimeter of compressor and condenser, the evaporimeter is the fin formula evaporimeter, be equipped with the heat transfer chamber on an inner chamber of the box lateral wall, the evaporimeter is located one side that the heat transfer intracavity is close to the box lateral wall, heat transfer intracavity opposite side is equipped with fan and air outlet, the heat transfer chamber in the evaporimeter avris is equipped with the backward flow wind gap, one side that the evaporimeter is close to the box lateral wall is equipped with the heating pipe.

The working principle of the utility model is as follows: through air circulation between the inner cavity of the box body and the heat exchange cavity where the evaporator is located, on one hand, cold air after heat exchange can rapidly enter and diffuse to all parts of the inner cavity of the box body, and the refrigeration efficiency and the uniformity of the temperature of all parts in the box body are improved; on the other hand makes the outside steam that gets into in the box, perhaps the steam that article produced in the box can in time pass through the evaporimeter and liquefy or desublimate, can in time get rid of the steam in the box promptly to avoid the condition of icing frost to take place. And the water liquefied at the evaporator can automatically flow downwards into structures such as a water storage box and the like, once the evaporator is frosted more, the water can be melted through the heating pipe, and the part of the water is discharged.

Preferably, the heat exchange cavity is composed of a first cover shell and a second cover shell which are mutually nested, the air outlet is formed in the first cover shell, and the nested structure is more convenient to disassemble and assemble.

Preferably, a backflow air duct is arranged between the outer side wall of the first housing and the inner side wall of the second housing, the plurality of backflow air openings are formed in the side wall of the first housing, and the backflow air duct is arranged to prevent a box body object from blocking the backflow air openings, so that the stability of air circulation in the refrigerator is guaranteed.

Preferably, the portion of the first housing where the air outlet is provided protrudes outward, and an air guiding inclined plane is formed between the portion of the first housing and the side of the first housing. The fan only occupies one part of the covering surface of the first housing and corresponds to the part provided with the air outlet, namely the fan is arranged in the part protruding outwards, and the invalid space around the fan is compressed by arranging the air guide inclined plane, so that the occupation of the first housing on the space in the box body is reduced; meanwhile, the air guide inclined plane can guide the backflow air to the backflow air duct on the side, and air circulation efficiency is guaranteed.

Preferably, the heating pipe is arranged on the side of the liquid inlet end of the evaporator, so that on one hand, the liquid inlet end of the evaporator is the lowest in temperature and is most prone to frosting; on the other hand, the heated condensate can melt the external frost when passing through other heat exchange tubes of the evaporator by heating the condensate in the liquid inlet end; this design is under the prerequisite that can realize the evaporimeter defrosting promptly, and the structure is simpler, and the cost is lower.

Preferably, the liquid inlet end of the evaporator is arranged at the upper end of the evaporator, so that when water produced by melting of the frost at the upper end of the evaporator drops downwards to the heat exchange tube at the lower part of the evaporator, the frost on the heat exchange tube at the lower part can be melted to a certain extent, and the energy utilization rate in the defrosting process is improved.

Preferably, the two sides of the evaporator are provided with structural plates, one structural plate is provided with a clamping hole, and the other structural plate is provided with a hook; one end of the heating pipe extends into the clamping hole, and the other end of the heating pipe is hung on the hook. The structure is simple, and the heating pipe is convenient to disassemble and assemble.

Preferably, the second housing is provided with a positioning hole, and the input end of the heating pipe extends out of the positioning hole to ensure the stability of the installation position of the heating pipe.

Preferably, the heat-insulation plate and the sealing plate are arranged on the side of the fan in the heat exchange cavity, so that the influence of heat generated by the heating pipe during working on the temperature of the inner cavity of the box body is reduced.

Preferably, the lower end of the heat exchange cavity is provided with a flow guide surface, and the lowest part of the flow guide surface is provided with a water outlet so as to ensure that water generated by melting is discharged in time.

The utility model has the advantages that:

1. the icing and frost formation in the vehicle-mounted refrigerator can be effectively avoided, so that the normal use of the vehicle-mounted refrigerator is ensured;

2. the design of the backflow air channel prevents the objects in the box from blocking the backflow air port so as to ensure the stability of air circulation;

3. only the side of the liquid inlet end at the upper part of the evaporator is provided with the heating pipe, so that the defrosting reliability is ensured, the structure is simplified, and the cost is saved;

4. the heating pipe has simple installation structure, convenient disassembly and assembly, and is stable and reliable.

Drawings

FIG. 1 is a schematic view of the internal structure of a frostless vehicular refrigerator according to the present invention;

FIG. 2 is a schematic structural view of the front side of a heat exchange chamber in the present invention;

FIG. 3 is a schematic view of the back side of the heat exchange chamber of the present invention;

FIG. 4 is a schematic view of the interior of the heat exchange chamber of the present invention;

in the figure: 1-a compressor; 2-a condenser; 3-an evaporator; 31-structural plates; 311-card hole; 312-hook; 4-a heat exchange cavity; 41-a first housing; 411-air outlet; 412-return tuyere; 413-wind guide inclined plane; 42-a second housing; 422-positioning holes; 421-a water outlet; 43-return air duct; 5, a fan; 6-heating tube.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, a frost-free vehicle-mounted refrigerator comprises a box body, a compressor 1 arranged in the box body, a condenser 2 connected with the compressor 1, and an evaporator 3 connected with the compressor 1 and the condenser 2, wherein the evaporator 3 is a finned evaporator, a heat exchange cavity 4 is arranged on one side wall of an inner cavity of the box body, the evaporator 3 is arranged on one side, close to the side wall of the box body, in the heat exchange cavity 4, a fan 5 and an air outlet 411 are arranged on the other side in the heat exchange cavity 4, a return air port 412 is arranged on the side of the heat exchange cavity 4, close to the side wall of the box body, and a heating pipe 6 is arranged on one side, close to the side wall of the box body, of the evaporator 3. The lower end of the heat exchange cavity 4 is provided with a flow guide surface, the lowest part of the flow guide surface is provided with a water outlet 421, and the water outlet is connected with a water storage box.

Specifically, the heat exchange cavity 4 is composed of a first housing 41 and a second housing 42 which are nested with each other, the air outlet 411 is arranged on the first housing 41, and the nested structure is more convenient to disassemble and assemble. And, a backflow air duct 43 is arranged between the outer side wall of the first housing 41 and the inner side wall of the second housing 42, the plurality of backflow air openings 412 are arranged on the side wall of the first housing 41, and the backflow air duct is arranged to prevent the backflow air openings from being blocked by a box body object, so that the stability of air circulation in the refrigerator is ensured.

Further, the portion of the first housing 41 where the air outlet 411 is provided protrudes outward, and an air guiding inclined plane 413 is formed between the portion and the side of the first housing. The fan only occupies one part of the covering surface of the first housing and corresponds to the part provided with the air outlet, namely the fan is arranged in the part protruding outwards, and the invalid space around the fan is compressed by arranging the air guide inclined plane, so that the occupation of the first housing on the space in the box body is reduced; meanwhile, the air guide inclined plane can guide the backflow air to the backflow air duct on the side, and air circulation efficiency is guaranteed.

In addition, the heating pipe 6 is arranged at the side of the liquid inlet end of the evaporator 3, so that on one hand, because the temperature of the liquid inlet end of the evaporator is the lowest, the frosting is most easily caused; on the other hand, the heated condensate can melt the external frost when passing through other heat exchange tubes of the evaporator by heating the condensate in the liquid inlet end; this design is under the prerequisite that can realize the evaporimeter defrosting promptly, and the structure is simpler, and the cost is lower. And the liquid inlet end of the evaporator 3 is arranged at the upper end of the evaporator, so that when water produced by melting of the frost at the upper end of the evaporator drops downwards to the heat exchange tube at the lower part of the evaporator, the frost on the heat exchange tube at the lower part can be melted to a certain extent, and the energy utilization rate in the defrosting process is improved. Structural plates 31 are arranged on two sides of the evaporator 3, a clamping hole 311 is arranged on one structural plate, and a hook 312 is arranged on the other structural plate; one end of the heating pipe 6 extends into the clamping hole 311, and the other end is hung on the hook 312. The structure is simple, and the heating pipe is convenient to disassemble and assemble. The second housing 42 is provided with a positioning hole 422, and the input end of the heating pipe 6 extends out of the positioning hole 422 to ensure the stability of the installation position of the heating pipe.

And finally, a heat insulation plate and a sealing plate are arranged on the side of the fan 5 in the heat exchange cavity 4 so as to reduce the influence of heat generated by the heating pipe during working on the temperature of the inner cavity of the box body.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a frost-free vehicle-mounted refrigerator, includes the box, locate compressor in the box, connect the condenser of compressor, connect the evaporimeter of compressor and condenser, its characterized in that, the evaporimeter is the fin formula evaporimeter, be equipped with the heat transfer chamber on a side wall of box inner chamber, the evaporimeter is located one side that the heat transfer intracavity is close to the box lateral wall, heat transfer intracavity opposite side is equipped with fan and air outlet, the heat transfer chamber in the evaporimeter avris is equipped with the backward flow wind gap, one side that the evaporimeter is close to the box lateral wall is equipped with the heating pipe.

2. The frost-free vehicular refrigerator of claim 1, wherein the heat exchange chamber is formed by a first cover and a second cover which are nested with each other, and the air outlet is formed on the first cover.

3. The frost-free vehicular refrigerator according to claim 2, wherein a return air duct is provided between the outer side wall of the first casing and the inner side wall of the second casing, and a plurality of return air ports are provided on the side wall of the first casing.

4. The frost-free vehicle-mounted refrigerator of claim 2, wherein a portion of the first casing where the air outlet is formed is protruded outward, and an air guide slope is formed between the portion and the side of the first casing.

5. The frost-free vehicular refrigerator as claimed in claim 1, wherein the heating pipe is provided at a side of a liquid inlet end of the evaporator.

6. The frost-free vehicular refrigerator of claim 5, wherein the liquid inlet end of the evaporator is disposed at an upper end of the evaporator.

7. The frost-free vehicular refrigerator according to claim 2, wherein structural plates are arranged on two sides of the evaporator, one structural plate is provided with a clamping hole, and the other structural plate is provided with a hook; one end of the heating pipe extends into the clamping hole, and the other end of the heating pipe is hung on the hook.

8. The frost-free vehicular refrigerator of claim 7, wherein the second casing is provided with a positioning hole, and the input end of the heating pipe extends from the positioning hole.

9. The frost-free vehicular refrigerator as claimed in claim 1, wherein a heat insulating plate and a sealing plate are provided in the heat exchanging chamber at an edge side of the fan.

10. The frost-free vehicular refrigerator of claim 1, wherein a flow guide surface is disposed at a lower end of the heat exchange chamber, and a drain port is disposed at a lowest position of the flow guide surface.