CN223580285U - Cold storage evaporator for vehicle refrigerators - Google Patents

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and discloses a cold accumulation evaporator for a vehicle-mounted refrigerator. The cold accumulation structure comprises a plurality of refrigeration flat pipes circulating with refrigeration media and a plurality of cold accumulation structures storing the cold accumulation media, wherein the refrigeration flat pipes are uniformly arranged along a first direction, air channels for air circulation are formed between the adjacent refrigeration flat pipes and between the refrigeration flat pipes and side plates of the cold accumulation evaporator, the plurality of cold accumulation structures are uniformly arranged in the plurality of air channels along the first direction, a first connecting surface and a second connecting surface are oppositely arranged on the cold accumulation structures along the first direction, one part of the first connecting surface is in fit with the refrigeration flat pipes on one side of the air channels, a gap is formed between the other part of the first connecting surface and the refrigeration flat pipes on the other side of the air channels, and a gap is formed between the other part of the second connecting surface and the refrigeration flat pipes on the other side of the air channels so as to improve heat exchange efficiency.

Description

Cold accumulation evaporator for vehicle-mounted refrigerator

Technical Field

The utility model relates to the technical field of vehicle-mounted refrigerators, in particular to a cold accumulation evaporator for a vehicle-mounted refrigerator.

Background

Along with the development of society, people's living demand is higher and higher, and on-vehicle refrigerator also gradually wide application, on-vehicle refrigerator compress the refrigerant through the compressor generally, flow through condenser and external environment and carry out heat exchange, and the refrigerant after the liquefaction gets into the evaporimeter after passing through throttling arrangement, absorbs the inside heat of refrigerator in the evaporimeter to reach the effect of refrigeration. However, the existing vehicle-mounted refrigerator still has the defects in refrigeration efficiency and cold accumulation capacity, and particularly, the refrigeration requirement required by customers is difficult to meet under the conditions of long-time power failure and high temperature.

In order to solve the above problems, a cold storage container is generally disposed in an evaporator, a chamber in the container is filled with a cold storage material, and the cold storage container exchanges heat with a refrigerant channel and is used for storing and releasing cold energy, that is, the cold energy of the cold storage container is transferred to the inside of a refrigerator by a fan under the power-off or high-temperature environment by utilizing the characteristics of the cold storage material, so that the cold storage container can still maintain the refrigeration effect for a period of time, and the energy loss of an automobile is reduced. The quantity and wave distance of the cold accumulation containers can be adjusted and cold accumulation media with different melting points can be replaced according to different refrigerating demands of the vehicle-mounted refrigerator and demands of users.

However, the cold accumulation evaporator in the prior art still has certain problems. The vehicle-mounted refrigerator with the cold accumulation function provided by the CN116118594A is characterized in that an evaporator is soaked in a refrigeration medium, cold energy is transmitted through a fan, the evaporator transmits heat between the evaporator and the cold accumulation medium in a heat conduction mode, heat exchange efficiency is reduced through multistage heat conduction, the problem of cold energy loss transmitted to the cold accumulation medium due to heat exchange between part of the structure of the evaporator and the external environment also exists, and when the vehicle-mounted refrigerator is started, the temperature of the cold accumulation material is reduced by the evaporator, the cold energy can be transmitted into the refrigerator, and the time is long. While a cold-storage heat exchanger such as that provided in CN105264324B has a cold-storage container disposed in a portion of the space between adjacent refrigerant lines of the evaporator, the outer side of the cold-storage line is directly attached to one side of the flat refrigerant line, failing to provide a flow space for air, which may result in a decrease in heat exchange efficiency between the refrigerant line and air at the space.

Accordingly, there is a need for a cold storage evaporator for an in-vehicle refrigerator to solve the above-mentioned technical problems.

Disclosure of utility model

The utility model aims to provide a cold accumulation evaporator for a vehicle-mounted refrigerator, which can solve the problem of heat transfer deterioration caused by complete contact between a refrigerant flat tube and a cold accumulation container, improves the heat exchange efficiency of a refrigeration medium, the cold accumulation medium and air, and has compact structure and low cost.

To achieve the purpose, the utility model adopts the following technical scheme:

A cold storage evaporator for a vehicle-mounted refrigerator, comprising:

The plurality of refrigeration flat pipes are uniformly arranged along the first direction, and refrigeration medium circulates in the refrigeration flat pipes; air channels are formed between the adjacent refrigerating flat tubes and between the refrigerating flat tubes and side plates of the cold accumulation evaporator so as to be used for circulating air;

A plurality of cold accumulation structures, wherein the plurality of cold accumulation structures are all arranged in at least part of the plurality of air channels along the first direction, and cold accumulation media are stored in the cold accumulation structures;

The cold accumulation structure is provided with a first connecting surface and a second connecting surface which are opposite to each other along the first direction, one part of the first connecting surface is attached to the refrigerating flat pipe on one side of the air channel, a gap is formed between the other part of the first connecting surface and the refrigerating flat pipe on one side of the air channel, one part of the second connecting surface is attached to the refrigerating flat pipe on the other side of the air channel, a gap is formed between the other part of the second connecting surface and the refrigerating flat pipe on the other side of the air channel, and the gap is used for air circulation.

Optionally, the cold accumulation structure includes at least one first cold accumulation flat tube and at least one second cold accumulation flat tube, the first cold accumulation flat tube and the second cold accumulation flat tube are alternately communicated, the first connection surface of the first cold accumulation flat tube is convex and is at least partially attached to the refrigerating flat tube on one side of the air channel, and the second connection surface of the second cold accumulation flat tube is convex and is at least partially attached to the refrigerating flat tube on the other side of the air channel.

Optionally, the longitudinal cross section of the first cold accumulation flat tube and the longitudinal cross section of the second cold accumulation flat tube are respectively V-shaped or U-shaped.

Optionally, the cold accumulation structure is provided with at least one cold accumulation channel along a second direction, the cold accumulation channel is used for storing the cold accumulation medium, and the second direction is perpendicular to the first direction.

Optionally, two sides of the cold accumulation structure along the second direction are respectively communicated with an inlet pipe and an outlet pipe, the inlet pipe is used for flowing in the cold accumulation medium, the outlet pipe is used for flowing out the cold accumulation medium, and the second direction is perpendicular to the first direction.

Optionally, the first connection surface used for being attached to the flat refrigeration pipe and the second connection surface used for being attached to the flat refrigeration pipe are both in welded connection with the flat refrigeration pipe.

Optionally, one part of the air channels is provided with a cold accumulation structure, and the other part is provided with a radiating fin.

Optionally, the air conditioner further comprises two collecting pipes, wherein the two collecting pipes are respectively arranged on two sides of the plurality of refrigeration flat pipes along a second direction and are communicated with the refrigeration flat pipes, and the second direction is perpendicular to the first direction.

Alternatively, either one of the two headers is provided with an inlet and an outlet, or one of the two headers is provided with an inlet and the other is provided with an outlet.

Optionally, a plurality of separators are arranged in the collecting pipe to change the flow of the cold accumulation evaporator.

The utility model has the beneficial effects that:

The utility model provides a cold accumulation evaporator for a vehicle-mounted refrigerator, which is characterized in that a cold accumulation structure is arranged in an air channel between adjacent refrigeration flat pipes or between the refrigeration flat pipes and side plates of the cold accumulation evaporator, a first part of a first connecting surface of the cold accumulation structure is attached to the adjacent refrigeration flat pipes, a part of a second connecting surface is attached to the adjacent refrigeration flat pipes, gaps are formed between the other parts of the second connecting surface and the remote refrigeration flat pipes, the uniform division of the air channel is realized, the refrigeration medium in the refrigeration flat pipes, the cold accumulation medium in the cold accumulation structure and the air can be directly contacted with each other for heat exchange, the heat exchange quantity is more uniform, the heat exchange efficiency is improved, the problem that the cold quantity is relatively slow in the initial operation period of the vehicle-mounted refrigerator is solved, the cold quantity stored in a phase change mode with the cold accumulation medium in the power-off or high-temperature environment is released to the vehicle-mounted refrigerator, the continuous provision of the cold quantity of the vehicle-mounted refrigerator in a certain time is realized, the structure is more compact, and the cost is low.

Drawings

Fig. 1 is an exploded view of a cold storage evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

Fig. 2 is a front view of a cold storage evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

FIG. 3 is an isometric view of a cold storage structure provided in an embodiment of the present utility model;

Fig. 4 is a side view of a cold storage evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

Fig. 5 is a cross-sectional view of a cold accumulation evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

Fig. 6 is a flow path sectional view of a cold accumulation evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

fig. 7 is an isometric view of a cold storage evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

Fig. 8 is a schematic flow diagram of a cooling medium of a cold accumulation evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

fig. 9 is a schematic flow diagram of a first row of refrigerant mediums of a cold accumulation evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model;

fig. 10 is a schematic flow diagram of a second row of refrigerant mediums of a cold accumulation evaporator for a vehicle-mounted refrigerator according to an embodiment of the present utility model.

In the figure:

10. 11, refrigerating channels;

20. an air channel, an air inlet side, an air outlet side and an air outlet side;

30. The cold accumulation structure comprises a cold accumulation structure, a first cold accumulation flat tube, a second cold accumulation flat tube, a 33, an inlet tube, a 34, an outlet tube, a 301, a first connecting surface, a 302, a second connecting surface, a 303 and a cold accumulation channel;

40. Header pipe, 41, bottom shell, 42, cover plate, 43, connecting plate, 44, plug cover, 401, inlet, 402, outlet, 403, first cavity, 404, second cavity, 405, third cavity, 406, fourth cavity, 407, fifth cavity, 408, sixth cavity, 409, seventh cavity;

50. Partition member 51, partition plate 511, flow hole 52, partition plate;

60. A side plate;

1001. First flow channel 1002, second flow channel 1003, third flow channel 1004, fourth flow channel 1005, fifth flow channel 1006, sixth flow channel.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, directly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The cold storage evaporator for a vehicle-mounted refrigerator provided by the present utility model will be described with reference to fig. 1 to 10.

It should be noted that, in the present embodiment, the first direction is the X direction in fig. 1 and 7, the second direction is the Z direction in fig. 1 and 7, and the Y direction is the air flowing direction, and the X direction, the Y direction and the Z direction are perpendicular to each other.

Referring to fig. 1 and 2, the present embodiment provides a cold storage evaporator for a vehicle-mounted refrigerator, which includes a plurality of flat refrigeration tubes 10 and a plurality of cold storage structures 30, wherein the flat refrigeration tubes 10 are uniformly arranged along a first direction, a refrigeration medium circulates in the flat refrigeration tubes 10, air channels 20 are formed between adjacent flat refrigeration tubes 10 and between the flat refrigeration tubes 10 and side plates 60 of the cold storage evaporator for air circulation, the plurality of cold storage structures 30 are uniformly arranged along the first direction in at least part of the plurality of air channels 20, the cold storage structures 30 store the cold storage medium therein, a first connecting surface 301 and a second connecting surface 302 are oppositely arranged along the first direction, one part of the first connecting surface 301 is in contact with the flat refrigeration tubes 10 on one side of the air channels 20, a gap is formed between the other part of the second connecting surface 302 and the flat refrigeration tubes 10 on the other side of the air channels 20, and a gap is formed between the other part of the second connecting surface 302 and the flat refrigeration tubes 10 on the other side of the air channels 20 for air circulation.

In the cold accumulation evaporator for the vehicle-mounted refrigerator in the embodiment, the cold accumulation structure 30 is arranged in the air channel 20 between the adjacent refrigeration flat pipes 10 or the air channel 20 between the refrigeration flat pipes 10 and the side plate 60 of the cold accumulation evaporator, and by attaching the first part of the first connecting surface 301 of the cold accumulation structure 30 to the adjacent refrigeration flat pipe 10 and attaching the second part of the second connecting surface 302 to the adjacent refrigeration flat pipe 10, gaps are formed between the rest parts and the far refrigeration flat pipe 10, so that the air channel 20 is uniformly divided, the refrigeration medium in the refrigeration flat pipe 10, the cold accumulation medium in the cold accumulation structure 30 and the air can be directly contacted for heat exchange, the heat exchange quantity is more uniform, the heat exchange efficiency is improved, the problem that the cold quantity is slow in the initial stage of the operation of the vehicle-mounted refrigerator is solved, the cold quantity stored in a phase change mode with the cold accumulation medium is released to the vehicle-mounted refrigerator in a power-off or high-temperature environment, the continuous provision of the vehicle-mounted refrigerator in a certain time is realized, the structure is more compact, and the cost is low.

Optionally, the plurality of cold accumulation structures 30 are disposed in at least a portion of the plurality of air passages 20 along the first direction, and the specific number and the position arrangement thereof are set according to the actual cold accumulation requirement, which is not particularly limited herein.

Illustratively, the plurality of cold accumulation structures 30 of the cold accumulation structure 30 in the present embodiment are disposed in one-to-one correspondence with the plurality of air passages 20.

Of course, in other embodiments, the number of the cold accumulation structures 30 may be smaller than the number of the air channels 20, that is, a part of the plurality of air channels 20 is provided with the cold accumulation structures 30, and the other part is provided with the heat dissipation fins, so that not only can the cold accumulation effect be achieved, the heat exchange effect of the air circulating in the air channels 20 provided with the cold accumulation structures 30 is ensured, but also the heat exchange effect of the air in the air channels 20 not provided with the cold accumulation structures 30 can be increased, and the heat exchange effect of the cold accumulation evaporator is improved.

Optionally, the first connection surface 301 used for being attached to the flat refrigeration tube 10 and the second connection surface 302 used for being attached to the flat refrigeration tube 10 are both in welded connection with the flat refrigeration tube 10 corresponding to improve the connection effect, so that the flat refrigeration tube 10 and the corresponding connection surface of the cold storage structure 30 are attached to each other to realize heat exchange. Further alternatively, the first connection surface 301 for being attached to the flat refrigeration tube 10 and the second connection surface 302 for being attached to the flat refrigeration tube 10 are both connected with the corresponding flat refrigeration tube 10 through brazing, so that the stress and deformation are small, and the size of the welded structure is guaranteed.

Referring to fig. 3, in the present embodiment, the cold accumulation structure 30 includes at least one first cold accumulation flat tube 31 and at least one second cold accumulation flat tube 32, the first cold accumulation flat tube 31 and the second cold accumulation flat tube 32 are alternately communicated, the first connection surface 301 of the first cold accumulation flat tube 31 is convex and is at least partially attached to the refrigeration flat tube 10 on one side of the air channel 20, and the second connection surface 302 of the second cold accumulation flat tube 32 is convex and is at least partially attached to the refrigeration flat tube 10 on the other side of the air channel 20. The corrugated cold accumulation structure 30 can be formed by the arrangement, the cold accumulation structure 30 is contacted with the refrigerating flat tubes 10 on two sides of the air channel 20, and meanwhile, air circulation gaps are formed, so that the refrigerating medium, the cold accumulation medium and the air can perform uniform heat exchange, and the heat exchange efficiency is improved.

Optionally, the longitudinal cross section of the first cold accumulation flat tube 31 and the longitudinal cross section of the second cold accumulation flat tube 32 are respectively V-shaped or U-shaped, that is, the contact areas between the cold accumulation structure 30 and the refrigeration flat tubes 10 at two sides of the air channel 20 are different, so as to adapt to cold accumulation evaporators with different heat exchange requirements.

Specifically, the cold accumulation structure 30 is provided with at least one cold accumulation channel 303 along a second direction, and the cold accumulation channel 303 is used for storing cold accumulation media, and the second direction is perpendicular to the first direction. Because the cold accumulation channel 303 is arranged, the periphery of the cold accumulation channel 303 along the first direction is larger than the periphery of other positions in the cold accumulation structure 30, so that in general, a part of the first connecting surface 301 and a part of the second connecting surface 302 of the cold accumulation structure 30 are respectively attached to the refrigeration flat pipes 10 on two sides of the air channel 20, so that direct contact heat exchange is realized, the quantity of heat exchange intermediate mediums is reduced, and the heat exchange effect is improved.

Alternatively, the number of the cold accumulation channels 303 may be arranged according to actual needs, which is not particularly limited herein.

Further, both sides of the cold accumulation structure 30 along the second direction are respectively communicated with an inlet pipe 33 and an outlet pipe 34, the inlet pipe 33 is used for inflow of cold accumulation medium, the outlet pipe 34 is used for outflow of cold accumulation medium, and the second direction is perpendicular to the first direction. By arranging the inlet pipe 33 and the outlet pipe 34 of each cold accumulation structure 30 independently, the condition that the cold accumulation medium is insufficient due to the single inlet and outlet 402 is avoided, and the capacity of the cold accumulation medium in the cold accumulation structure 30 is ensured to meet the requirement. At the same time, the cold accumulation structure 30 can be injected, added to be injected or replaced with a certain amount of cold accumulation medium according to the requirement.

Optionally, the inlet pipe 33 and the cold accumulation structure 30, and the cold accumulation structure 30 and the outlet pipe 34 are connected by welding, so that the sealing effect and the connection strength of the two are improved.

Referring to fig. 4 to 6, in the present embodiment, a plurality of cooling channels 11 are provided in the cooling flat tube 10 to realize the circulation of the refrigerant.

Optionally, the number of the refrigerating flat tubes 10 of each group may be set according to actual requirements, that is, according to the specific flow and the number of channels of the cold storage evaporator, and the adaptive design is performed, which is not limited herein. I.e. it can be single row, double row or multiple row, and the flow can be single flow, double flow, four flow, six flow, etc.

Illustratively, the cold accumulation evaporator in the present embodiment has six double rows, that is, the refrigerating flat tube 10 is provided with two rows along the Y direction, specifically, the number of the cold accumulation evaporator is 6. The number of the cold accumulation channels 303 of the cold accumulation structure 30 is also two according to the number, so that the cold accumulation channels can exchange heat with the double-row refrigerating flat tubes 10.

Referring to fig. 1 and 7, in the present embodiment, the cold storage evaporator for a vehicle-mounted refrigerator further includes two collecting pipes 40, wherein the two collecting pipes 40 are respectively disposed at two sides of the plurality of flat refrigeration pipes 10 along the second direction, and are disposed in communication with the flat refrigeration pipes 10, and the second direction is perpendicular to the first direction. Header 40 is used to collect the flow of refrigerant medium to facilitate the flow of refrigerant medium into and out of or into a rotary flow path.

Alternatively, either one of the two headers 40 is provided with an inlet 401 and an outlet 402, or one of the two headers 40 is provided with an inlet 401 and the other is provided with an outlet 402. The arrangement can realize the inflow and outflow of the refrigerating medium of the cold accumulation evaporator. Illustratively, either of the two headers 40 in this embodiment is provided with an inlet 401 and an outlet 402 such that the inlet 401 and the outlet 402 are disposed on the same side. Also, the header 40 located above of the two headers 40 in the present embodiment is provided with an inlet 401 and an outlet 402.

Specifically, the header 40 includes a bottom case 41 and a cover plate 42, and the bottom case 41 and the cover plate 42 are hermetically connected to form a chamber through which a refrigerant is supplied. More specifically, two connection plates 43 are respectively disposed at two sides of the chamber or two connection plates 43 and a blocking cover 44 are respectively disposed at two sides of the chamber, so that the collecting pipe 40 forms a closed chamber or an inlet 401 or an outlet 402 for supplying the refrigerant medium to flow in and out.

In order to ensure the isolation between the pipelines connected by the inlet 401 and the outlet 402 and to satisfy the flow of the refrigerant medium with six double rows of flow paths, in this embodiment, particularly, the header 40 is provided with a plurality of separators 50, and the separators 50 are placed according to the requirements, so that the flow path of the cold storage evaporator can be changed.

More specifically, the partition 50 includes a partition plate 51 disposed at the center of the header 40 in the Y direction to form double-row pipes respectively connected to the double-row flat refrigerant tubes 10, and a flow hole 511 is provided at a portion of the partition plate 51 of the header 40 where the inlet and outlet 402 is not provided, to achieve the communication of the two rows of the refrigerant channels 11.

Further, the separator 50 further includes a spacer 52, and the spacer 52 is provided in a plurality at any position along the first direction in both the headers 40 according to the requirement to divide the flow path.

Referring to fig. 7 to 10, according to the arrangement of the double-row six flow paths in the present embodiment, each header 40 is provided with one spacer 52, and the two spacers 52 are arranged in a staggered manner, so that the two headers 40 are respectively divided into a first cavity 403, a second cavity 404, a third cavity 405, a fourth cavity 406, a fifth cavity 407, a sixth cavity 408 and a seventh cavity 409 along the flow direction of the refrigerant medium. And the cooling flow passage communicating with the corresponding cavity is also divided into a first flow passage 1001, a second flow passage 1002, a third flow passage 1003, a fourth flow passage 1004, a fifth flow passage 1005, and a sixth flow passage 1006.

Namely, the first, third, fifth and seventh cavities 403, 405, 407 and 409 are all provided on the upper header 40 provided with the inlet 401 and the outlet 402, and the second, fourth and sixth cavities 404, 406 and 408 are all provided on the lower header 40. The first, second and third cavities 403, 404 and 405 are one row of cavities communicating with the inlet 401, the fifth, sixth and seventh cavities 407, 408 and 409 are one row of cavities communicating with the outlet 402, and the fourth cavity 406 is a cavity communicating with two rows of cooling channels.

The following describes a specific way of circulating the cooling medium and air in the cold accumulation evaporator for the vehicle-mounted refrigerator according to a double-row six-flow process.

The two sides of the cold accumulation evaporator along the Y direction are respectively an air inlet side 201 and an air outlet side 202 of the air. In the Y direction, air flows from the air intake side 201 to the air outlet side 202 through the air passage 20.

The refrigerating medium flows into the first cavity 403 from the inlet 401 of the header 40 above the row of refrigerating flat tubes 10, flows into the corresponding first flow channel 1001 through the first cavity 403, then flows into the second cavity 404 of the header 40 below, flows into the corresponding second flow channel 1002 through the second cavity 404, then flows into the third cavity 405 of the header 40 above, flows into the third flow channel 1003 through the third cavity 405 of the header 40 above, and enters the fourth cavity 406 of the header 40 below, and is communicated with the double rows of refrigerating flat tubes 10 through the flow holes 511 of the partition plate 51 in the fourth cavity 406, then the refrigerating medium flows into the fourth flow channel 1004 of the other row of refrigerating flat tubes 10, then flows into the fifth cavity 407 of the header 40 above, then flows into the sixth cavity 408 of the header 40 below through the fifth flow channel 1005, finally flows into the seventh cavity 409 of the header 40 above through the sixth flow channel 1006, and flows out through the outlet 402 of the seventh cavity 409, so that the circulation of the refrigerating medium is realized.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A cold accumulation evaporator for a vehicle-mounted refrigerator, comprising:

The refrigerating flat pipes (10) are uniformly arranged along the first direction, and refrigerating media circulate in the refrigerating flat pipes (10), and air channels (20) are formed between the adjacent refrigerating flat pipes (10) and between the refrigerating flat pipes (10) and side plates (60) of the cold accumulation evaporator for air circulation;

a plurality of cold accumulation structures (30), wherein the plurality of cold accumulation structures (30) are all arranged in at least part of the plurality of air channels (20) along the first direction, and cold accumulation media are stored in the cold accumulation structures (30);

The cold accumulation structure (30) is provided with a first connecting surface (301) and a second connecting surface (302) along the first direction, one part of the first connecting surface (301) is attached to the refrigerating flat tube (10) on one side of the air channel (20), a gap is formed between the other part of the first connecting surface and the refrigerating flat tube (10) on one side of the air channel (20), one part of the second connecting surface (302) is attached to the refrigerating flat tube (10) on the other side of the air channel (20), a gap is formed between the other part of the second connecting surface and the refrigerating flat tube (10) on the other side of the air channel (20), and the gap is used for circulation of air.

2. Cold accumulation evaporator for vehicle-mounted refrigerators as in claim 1 characterized in that said cold accumulation structure (30) comprises at least one first cold accumulation flat tube (31) and at least one second cold accumulation flat tube (32), said first cold accumulation flat tube (31) and said second cold accumulation flat tube (32) being in staggered communication, said first connection face (301) of said first cold accumulation flat tube (31) being convex and being at least partially in a fitting arrangement with said refrigerating flat tube (10) on one side of said air channel (20), said second connection face (302) of said second cold accumulation flat tube (32) being convex and being at least partially in a fitting arrangement with said refrigerating flat tube (10) on the other side of said air channel (20).

3. Cold-storage evaporator for a vehicle-mounted refrigerator according to claim 2, characterized in that the longitudinal section of the first cold-storage flat tube (31) and the longitudinal section of the second cold-storage flat tube (32) are V-shaped or U-shaped, respectively.

4. A cold accumulation evaporator for a vehicle-mounted refrigerator as in any one of claims 1-3 characterized in that the cold accumulation structure (30) is provided with at least one cold accumulation channel (303) in a second direction, the cold accumulation channel (303) being for storing the cold accumulation medium, the second direction being perpendicular to the first direction.

5. A cold accumulation evaporator for a vehicle-mounted refrigerator as in any one of claims 1-3 characterized in that the cold accumulation structure (30) is respectively connected on both sides in a second direction with an inlet pipe (33) and an outlet pipe (34), the inlet pipe (33) being used for inflow of cold accumulation medium, the outlet pipe (34) being used for outflow of cold accumulation medium, the second direction being perpendicular to the first direction.

6. The cold accumulation evaporator for vehicle-mounted refrigerators as claimed in claim 1 characterized in that said first connection surface (301) for being provided in a fitting manner with said flat refrigerating tube (10) and said second connection surface (302) for being provided in a fitting manner with said flat refrigerating tube (10) are both welded with the corresponding flat refrigerating tube (10).

7. Cold-storage evaporator for a vehicle-mounted refrigerator according to claim 1, characterized in that one part of the plurality of air channels (20) is provided with a cold-storage structure (30) and the other part is provided with heat-radiating fins.

8. The cold accumulation evaporator for a vehicle-mounted refrigerator according to claim 1, further comprising two collecting pipes (40), wherein the two collecting pipes (40) are respectively arranged at two sides of the plurality of refrigeration flat pipes (10) along a second direction, and are communicated with the refrigeration flat pipes (10), and the second direction is perpendicular to the first direction.

9. The cold accumulation evaporator for vehicle-mounted refrigerators as claimed in claim 8 wherein either one of the two header pipes (40) is provided with an inlet (401) and an outlet (402), or one of the two header pipes (40) is provided with an inlet (401) and the other is provided with an outlet (402).

10. Cold-storage evaporator for a vehicle-mounted refrigerator according to claim 8, characterized in that a number of partitions (50) are provided in the header (40) to modify the flow of the cold-storage evaporator.