Cold storage evaporator for vehicle-mounted refrigerator

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 refrigerating unit comprises a plurality of refrigerating flat pipes in which a refrigerating medium circulates and a plurality of cold storage structures in which a cold storage medium is stored, and the plurality of refrigerating flat pipes are uniformly arranged in a first direction; air channels used for air circulation are formed between the adjacent refrigerating flat pipes and between the refrigerating flat pipes and side plates of the cold storage evaporator. The multiple cold storage structures are evenly distributed in at least part of the multiple air channels in the first direction. The cold storage structure is oppositely provided with a first connecting surface and a second connecting surface in the first direction, one part of the first connecting surface is attached to the refrigerating flat pipe on one side of the air channel, and 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, and 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, so that the heat exchange efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle refrigerator, especially to a cold storage evaporator for vehicle refrigerator. BACKGROUND

[0002] With the development of society, people's life demand is higher and higher, and vehicle refrigerator is gradually widely used. Vehicle refrigerator generally compresses refrigerant through compressor, exchanges heat with external environment through condenser, and absorbs heat inside the refrigerator in evaporator after the liquefied refrigerant passes through throttling device, so as to achieve the effect of refrigeration. However, the existing vehicle refrigerator still has deficiencies in refrigeration efficiency and cold storage capacity, especially in the case of long-time power failure and high temperature environment, it is difficult to meet the refrigeration requirements of customers.

[0003] In order to solve the above problems, a cold storage container is usually arranged in the evaporator, the cavity in the container is filled with cold storage material, and the cold storage material is used for storing and releasing cold energy by exchanging heat with the refrigerant channel, that is, the characteristics of the cold storage material are used to transfer the cold energy of the cold storage container to the inside of the refrigerator through the fan in the case of power failure or high temperature environment, so that the refrigeration effect can still be maintained for a period of time, and the energy loss of the automobile is reduced. And according to different refrigeration requirements and user requirements of vehicle refrigerator, the number and wave distance of cold storage container can be adjusted, and different melting point cold storage medium can be replaced.

[0004] However, the existing cold storage evaporator still has some problems. For example, the vehicle refrigerator with cold storage function provided by CN116118594A is immersed in refrigeration medium, and the cold energy is transferred by the fan. The evaporator transfers heat between the cold storage medium by heat conduction, which reduces the heat exchange efficiency, and the heat exchange between the evaporator and the external environment causes the loss of cold energy transferred to the cold storage medium. Moreover, when the vehicle refrigerator is started, the evaporator needs to reduce the temperature of the cold storage material first, and then the cold energy can be transferred to the refrigerator, which takes a long time. The cold storage heat exchanger provided by CN105264324B is arranged in the gap between the adjacent refrigerant pipelines of the evaporator, but the outer side of the cold storage pipeline is directly attached to one side of the refrigerant flat tube, and there is no air flow space, which reduces the heat exchange efficiency between the refrigerant pipeline and the air in the gap.

[0005] Therefore, there is an urgent need for a cold storage evaporator for vehicle refrigerator to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a cold storage evaporator for vehicle refrigerator, which can solve the problem of heat transfer deterioration caused by the complete contact between the refrigerant flat tube and the cold storage container, improve the heat exchange efficiency of the refrigeration medium, the cold storage medium and the air, and has compact structure and low cost.

[0007] To achieve the purpose, the utility model discloses the following technical scheme:

[0008] The cold storage evaporator for the vehicle-mounted refrigerator comprises:

[0009] A plurality of refrigeration flat tubes are uniformly arranged along a first direction, and a refrigeration medium circulates in the refrigeration flat tubes; air channels are formed between adjacent refrigeration flat tubes and between the refrigeration flat tubes and side plates of the cold storage evaporator for the circulation of air.

[0010] A plurality of cold storage structures are uniformly arranged in at least part of the air channels along the first direction, and the cold storage structures store cold storage medium.

[0011] The cold storage structures are oppositely provided with first connecting surfaces and second connecting surfaces along the first direction; part of the first connecting surfaces is arranged in close contact with the refrigeration flat tubes on one side of the air channels, and the other part forms a gap between the refrigeration flat tubes on one side of the air channels; part of the second connecting surfaces is arranged in close contact with the refrigeration flat tubes on the other side of the air channels, and the other part forms a gap between the refrigeration flat tubes on the other side of the air channels, and the gap is used for the circulation of air.

[0012] Optionally, the cold storage structure comprises at least one first cold storage flat tube and at least one second cold storage flat tube, the first cold storage flat tube and the second cold storage flat tube are arranged in an interlaced manner, the first connecting surface of the first cold storage flat tube is a convex surface and is arranged in close contact with the refrigeration flat tubes on one side of the air channels at least in part, and the second connecting surface of the second cold storage flat tube is a convex surface and is arranged in close contact with the refrigeration flat tubes on the other side of the air channels at least in part.

[0013] Optionally, the longitudinal section of the first cold storage flat tube and the longitudinal section of the second cold storage flat tube are respectively V-shaped or U-shaped.

[0014] Optionally, the cold storage structure is provided with at least one cold storage channel along a second direction, the cold storage channel is used for storing the cold storage medium, and the second direction is perpendicular to the first direction.

[0015] Optionally, the cold storage structure is provided with an inlet pipe and an outlet pipe respectively on two sides along the second direction, the inlet pipe is used for the inflow of the cold storage medium, the outlet pipe is used for the outflow of the cold storage medium, and the second direction is perpendicular to the first direction.

[0016] Optionally, the first connecting surface used for close contact with the refrigeration flat tubes and the second connecting surface used for close contact with the refrigeration flat tubes are both welded to the corresponding refrigeration flat tubes.

[0017] Optionally, a part of the plurality of air channels is provided with the cold storage structure, and another part is provided with the heat dissipation fin.

[0018] Optionally, two headers are further included, and the two headers are respectively arranged on two sides of the plurality of refrigeration flat tubes along a second direction and are in communication with the refrigeration flat tubes, and the second direction is perpendicular to the first direction.

[0019] Optionally, any 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.

[0020] Optionally, a plurality of partition pieces are arranged in the header to change the flow of the cold storage evaporator.

[0021] The beneficial effects of the present application are as follows:

[0022] The present application provides a cold storage evaporator for a vehicle-mounted refrigerator, wherein the cold storage structure is arranged in the air channel between adjacent refrigeration flat tubes or arranged in the air channel between the refrigeration flat tube and the side plate of the cold storage evaporator; and by bonding the first part of the first connecting surface of the cold storage structure with the adjacent refrigeration flat tube, bonding a part of the second connecting surface with the adjacent refrigeration flat tube, and forming a gap between the remaining part and the distant refrigeration flat tube, the air channel is uniformly divided, so that the refrigeration medium in the refrigeration flat tube, the cold storage medium in the cold storage structure and air can directly contact and exchange heat, and the heat exchange amount is more uniform, which not only improves the heat exchange efficiency, solves the problem of slow cold quantity transmission in the initial stage of the operation of the vehicle-mounted refrigerator, but also enables the cold quantity stored in the phase change form by the cold storage medium to be released to the vehicle-mounted refrigerator in the power-off or high-temperature environment, realizes the continuous provision of the cold quantity of the vehicle-mounted refrigerator within a certain time, and has a more compact structure and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is an exploded view of the cold storage evaporator for the vehicle-mounted refrigerator provided in the specific embodiment of the present application;

[0024] Figure 2 is a front view of the cold storage evaporator for the vehicle-mounted refrigerator provided in the specific embodiment of the present application;

[0025] Figure 3 is an isometric view of the cold storage structure provided in the specific embodiment of the present application;

[0026] Figure 4 is a side view of the cold storage evaporator for the vehicle-mounted refrigerator provided in the specific embodiment of the present application;

[0027] Figure 5is the cross section view of the cold storage evaporator for the vehicle-mounted refrigerator provided by the embodiment of the utility model;

[0028] Figure 6 is the flow passage section view of the cold storage evaporator for the vehicle-mounted refrigerator provided by the embodiment of the utility model;

[0029] Figure 7 is the axonometric view of the cold storage evaporator for the vehicle-mounted refrigerator provided by the embodiment of the utility model;

[0030] Figure 8 is the flow direction schematic view of the refrigeration medium of the cold storage evaporator for the vehicle-mounted refrigerator provided by the embodiment of the utility model;

[0031] Figure 9 is the flow direction schematic view of the first row refrigeration medium of the cold storage evaporator for the vehicle-mounted refrigerator provided by the embodiment of the utility model;

[0032] Figure 10 is the flow direction schematic view of the second row refrigeration medium of the cold storage evaporator for the vehicle-mounted refrigerator provided by the embodiment of the utility model.

[0033] In the drawing:

[0034] 10, refrigeration flat pipe; 11, refrigeration passage;

[0035] 20, air passage; 201, air inlet side; 202, air outlet side;

[0036] 30, cold storage structure; 31, first cold storage flat pipe; 32, second cold storage flat pipe; 33, inlet pipe; 34, outlet pipe; 301, first connecting surface; 302, second connecting surface; 303, cold storage passage;

[0037] 40, header; 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;

[0038] 50, partition; 51, partition plate; 511, flow-through hole; 52, partition piece;

[0039] 60, side plate;

[0040] 1001, first flow passage; 1002, second flow passage; 1003, third flow passage; 1004, fourth flow passage; 1005, fifth flow passage; 1006, sixth flow passage. DETAILED DESCRIPTION

[0041] The utility model will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, rather than all the structures.

[0042] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In the description of the embodiment, the terms "upper", "lower", "left", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

[0045] The following refers to Figures 1 to 10 The utility model provides a cold storage evaporator for vehicle refrigerator.

[0046] It should be noted that the first direction in the embodiment is Figure 1 and Figure 7 X direction in the embodiment, the second direction is Figure 1 and Figure 7 Z direction in the embodiment, Y direction is the flow direction of air, X direction, Y direction and Z direction are perpendicular to each other.

[0047] Please refer to Figure 1 and Figure 2This embodiment provides a cold storage evaporator for a vehicle refrigerator, comprising multiple refrigeration flat tubes 10 and multiple cold storage structures 30. The multiple refrigeration flat tubes 10 are uniformly arranged along a first direction, and a refrigerant medium circulates within each refrigeration flat tube 10. Air channels 20 are formed between adjacent refrigeration flat tubes 10 and between the refrigeration flat tubes 10 and the side plate 60 of the cold storage evaporator for air circulation. At least a portion of the multiple cold storage structures 30 are evenly distributed along the first direction within the multiple air channels 20, and a cold storage medium is stored within each cold storage structure 30. The cold storage structures 30 have a first connecting surface 301 and a second connecting surface 302 arranged opposite each other along the first direction. A portion of the first connecting surface 301 is fitted with a refrigeration flat tube 10 on one side of the air channel 20, and a gap is formed between the other portion and the refrigeration flat tube 10 on the other side of the air channel 20. A portion of the second connecting surface 302 is fitted with a refrigeration flat tube 10 on the other side of the air channel 20, and a gap is formed between the other portion and the refrigeration flat tube 10 on the other side of the air channel 20 for air circulation.

[0048] In this embodiment, the cold storage evaporator for a vehicle refrigerator has a cold storage structure 30 disposed in the air channel 20 between adjacent refrigeration flat tubes 10 or in the air channel 20 between the refrigeration flat tubes 10 and the side plate 60 of the cold storage evaporator. By attaching a first part of the first connecting surface 301 of the cold storage structure 30 to the adjacent refrigeration flat tube 10, attaching a part of the second connecting surface 302 to the adjacent refrigeration flat tube 10, and forming a gap between the remaining part and the more distant refrigeration flat tube 10, the air channel 20 is uniformly divided. This allows the refrigerant in the refrigeration flat tube 10, the cold storage medium in the cold storage structure 30, and the air to directly contact and exchange heat, resulting in a more uniform heat exchange. This not only improves heat exchange efficiency and solves the problem of slow cold transfer in the early stages of vehicle refrigerator operation, but also allows the cold stored in the cold storage medium in the form of a phase change to be released to the vehicle refrigerator in the event of a power outage or high temperature environment. This achieves continuous supply of cold to the vehicle refrigerator for a certain period of time, and the structure is more compact and the cost is low.

[0049] Optionally, multiple cold storage structures 30 are evenly distributed in at least a portion of multiple air channels 20 along the first direction. Their specific number and location arrangement are set according to the actual cold storage requirements and are not specifically limited here.

[0050] For example, in this embodiment, the multiple cold storage structures 30 are configured one-to-one with the multiple air channels 20.

[0051] Of course, in other embodiments, the number of cold storage structures 30 can be less than the number of air channels 20, i.e. some of the plurality of air channels 20 are provided with cold storage structures 30 and the other part is provided with heat dissipation fins, so that not only the cold storage effect can be achieved, but also the heat exchange effect of the air flowing through the air channels 20 provided with cold storage structures 30 can be ensured, and the heat exchange effect of the air in the air channels 20 without cold storage structures 30 can be increased, thereby improving the heat exchange effect of the cold storage evaporator.

[0052] Optionally, the first connecting surface 301 for abutting the refrigeration flat tube 10 and the second connecting surface 302 for abutting the refrigeration flat tube 10 are both welded to the corresponding refrigeration flat tube 10 to improve the connection effect, so that the refrigeration flat tube 10 and the connecting surface of the corresponding cold storage structure 30 are abutted to realize heat exchange. Further optionally, the first connecting surface 301 for abutting the refrigeration flat tube 10 and the second connecting surface 302 for abutting the refrigeration flat tube 10 are both connected to the corresponding refrigeration flat tube 10 by brazing, which has less stress and deformation to ensure the size of the welded structure.

[0053] Please refer to Figure 3 In the embodiment, the cold storage structure 30 includes at least one first cold storage flat tube 31 and at least one second cold storage flat tube 32, the first cold storage flat tube 31 and the second cold storage flat tube 32 are arranged in an alternating manner, the first connecting surface 301 of the first cold storage flat tube 31 is a convex surface and is at least partially abutted to the refrigeration flat tube 10 on one side of the air channel 20, and the second connecting surface 302 of the second cold storage flat tube 32 is a convex surface and is at least partially abutted to the refrigeration flat tube 10 on the other side of the air channel 20. In this way, the cold storage structure 30 forms a corrugated shape, so that the cold storage structure 30 is in contact with the refrigeration flat tube 10 on both sides of the air channel 20, and also has a gap for air flow, so that the refrigeration medium, the cold storage medium and the air can be uniformly heat exchanged to improve the heat exchange efficiency.

[0054] Optionally, the longitudinal section shape of the first cold storage flat tube 31 and the longitudinal section shape of the second cold storage flat tube 32 are respectively V-shaped or U-shaped, i.e. the contact area between the cold storage structure 30 and the refrigeration flat tube 10 on both sides of the air channel 20 is different in size to adapt to cold storage evaporators with different heat exchange requirements.

[0055] Specifically, the cold storage structure 30 is provided with at least one cold storage channel 303 in the second direction, and the cold storage channel 303 is used to store the cold storage medium. The second direction is perpendicular to the first direction. Due to the provision of the cold storage channel 303, the outer circumference of the cold storage channel 303 in the first direction is greater than that of other positions in the cold storage structure 30. Therefore, in general, a part of the first connecting surface 301 and a part of the second connecting surface 302 of the cold storage structure 30 are respectively arranged in contact with the refrigeration flat tubes 10 on both sides of the air channel 20 to achieve direct contact heat exchange, reduce the number of intermediate media in heat exchange, and improve the heat exchange effect.

[0056] Optionally, the number of cold storage channels 303 can be arranged according to actual needs, which is not limited here.

[0057] Further, the two sides of the cold storage structure 30 in the second direction are respectively communicated with the inlet pipe 33 and the outlet pipe 34. The inlet pipe 33 is used for the inflow of the cold storage medium, and the outlet pipe 34 is used for the outflow of the cold storage medium. The second direction is perpendicular to the first direction. By separately providing the inlet pipe 33 and the outlet pipe 34 for each cold storage structure 30, the situation of insufficient filling of the cold storage medium caused by a single inlet and outlet 402 is avoided, and the capacity of the cold storage medium in the cold storage structure 30 is ensured to meet the demand. At the same time, the cold storage structure 30 can also inject, increase or replace a certain amount of cold storage medium according to the demand.

[0058] Optionally, the inlet pipe 33 and the cold storage structure 30 are connected by welding, and the outlet pipe 34 and the cold storage structure 30 are connected by welding, which improves the sealing effect and the connection strength of the two.

[0059] Please refer to Figures 4 to 6 In this embodiment, the refrigeration flat tube 10 is provided with a plurality of refrigeration channels 11 to realize the flow of the refrigerant.

[0060] Optionally, the number of each group of refrigeration flat tubes 10 can be set according to actual needs, that is, adaptive design according to the specific process and the number of channels of the cold storage evaporator, which is not limited here. That is, it can be single row, double row or multiple rows, and the process can be single process, double process, four process, six process, etc.

[0061] Exemplarily, the cold storage evaporator in this embodiment is double-row six-process, that is, the refrigeration flat tube 10 is provided with double rows along the Y direction, and specifically, the process in the cold storage evaporator is six. And the number of the cold storage channel 303 of the cold storage structure 30 is also set to two to respectively exchange heat with the refrigeration flat tubes 10 of the double rows.

[0062] Please refer to Figure 1 and Figure 7In the present embodiment, the cold storage evaporator for the vehicle-mounted refrigerator further comprises two header tanks 40, which are respectively arranged on the two sides of the plurality of refrigeration flat tubes 10 along the second direction and are in communication with the refrigeration flat tubes 10, and the second direction is perpendicular to the first direction. The header tank 40 is used for the collection of the refrigeration medium so as to facilitate the flow in and out or the flow change of the refrigeration medium.

[0063] Optionally, any one of the two header tanks 40 is provided with an inlet 401 and an outlet 402; or one of the two header tanks 40 is provided with an inlet 401 and the other is provided with an outlet 402. The above-mentioned arrangements can all realize the flow in and out of the refrigeration medium of the cold storage evaporator. Exemplarily, any one of the two header tanks 40 in the present embodiment is provided with an inlet 401 and an outlet 402, so that the inlet 401 and the outlet 402 are arranged on the same side. Moreover, the upper header tank 40 of the two header tanks 40 in the present embodiment is provided with an inlet 401 and an outlet 402.

[0064] Specifically, the header tank 40 comprises a bottom shell 41 and a cover plate 42, and the bottom shell 41 and the cover plate 42 are sealingly connected to form a chamber for the flow of the refrigeration medium. More specifically, the two sides of the chamber are respectively provided with two connecting plates 43, or the two sides of the chamber are respectively provided with a connecting plate 43 and a plug cover 44, so that the header tank 40 forms a closed chamber, or forms an inlet 401 or an outlet 402 for the flow in and out of the refrigeration medium.

[0065] In order to ensure the isolation between the pipelines connected by the inlet 401 and the outlet 402 and to meet the flow of the refrigeration medium with double-row six-flow process, specifically, in the present embodiment, a plurality of partition pieces 50 are arranged in the header tank 40, and the partition pieces 50 are placed according to the requirements, that is, the process of the cold storage evaporator can be changed.

[0066] More specifically, the partition piece 50 comprises a partition plate 51, which is arranged at the center of the header tank 40 along the Y direction to form a double-row pipeline, and the double-row pipeline is respectively connected to the double-row refrigeration flat tubes 10; and the partition plate 51 of the header tank 40 which is not provided with an inlet and an outlet 402 is provided with a flow-through hole 511 to realize the communication of the two rows of refrigeration channels 11.

[0067] Further, the partition piece 50 further comprises a partition sheet 52, which is arranged at any position along the first direction in the two header tanks 40 according to the requirements to divide the flow process.

[0068] Please refer to Figures 7 to 10, according to the double-row six-flow process in the embodiment, each header 40 is provided with a partition 52, and the two partitions 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. The refrigerant flow channel corresponding to the cavity is also divided into a first flow channel 1001, a second flow channel 1002, a third flow channel 1003, a fourth flow channel 1004, a fifth flow channel 1005 and a sixth flow channel 1006.

[0069] That is, the first cavity 403, the third cavity 405, the fifth cavity 407 and the seventh cavity 409 are all arranged in the upper header 40 provided with the inlet 401 and the outlet 402; the second cavity 404, the fourth cavity 406 and the sixth cavity 408 are all arranged in the lower header 40. In addition, the first cavity 403, the second cavity 404 and the third cavity 405 are a row of cavities in communication with the inlet 401, the fifth cavity 407, the sixth cavity 408 and the seventh cavity 409 are a row of cavities in communication with the outlet 402, and the fourth cavity 406 is a cavity in communication with the two rows of refrigerant flow channels.

[0070] The flow paths of the refrigerant and air in the cold storage evaporator for the vehicle-mounted refrigerator according to the double-row six-flow process will be described below.

[0071] The air flow path: The two sides of the cold storage evaporator along the Y direction are the air inlet side 201 and the air outlet side 202 respectively. Along the Y direction, the air flows from the air inlet side 201 to the air outlet side 202 through the air passage 20.

[0072] The refrigerant flow path: The refrigerant flows into the first cavity 403 from the inlet 401 of the header 40 above the row of refrigerant flat tubes 10, flows into the corresponding first flow channel 1001 through the first cavity 403, then enters the second cavity 404 of the lower header 40, flows into the corresponding second flow channel 1002 through the second cavity 404, and then enters the third cavity 405 of the upper header 40, flows into the third flow channel 1003 through the third cavity 405 of the upper header 40, and enters the fourth cavity 406 of the lower header 40, and then the refrigerant enters the fourth flow channel 1004 of the other row of refrigerant flat tubes 10 through the flow communication hole 511 of the partition plate 51 in the fourth cavity 406, then enters the fifth cavity 407 of the upper header 40, then enters the sixth cavity 408 of the lower header 40 through the fifth flow channel 1005, and finally enters the seventh cavity 409 of the upper header 40 through the sixth flow channel 1006, and then flows out through the outlet 402 of the seventh cavity 409, realizing the circulation of the refrigerant.

[0073] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A cold storage evaporator for a vehicle refrigerator, characterized in that, include: Multiple refrigeration flat tubes (10) are uniformly arranged along a first direction, and a refrigeration medium circulates within each refrigeration flat tube (10). Air channels (20) are formed between adjacent refrigeration flat tubes (10) and between the refrigeration flat tubes (10) and the side plate (60) of the cold storage evaporator for air circulation. Multiple cold storage structures (30) are evenly distributed in at least a portion of the multiple air channels (20) along the first direction, and the cold storage structures (30) store a cold storage medium. The cold storage structure (30) has a first connecting surface (301) and a second connecting surface (302) arranged opposite to each other along the first direction. A portion of the first connecting surface (301) is fitted with the cooling flat tube (10) on one side of the air channel (20), and another portion forms a gap between it and the cooling flat tube (10) on one side of the air channel (20). A portion of the second connecting surface (302) is fitted with the cooling flat tube (10) on the other side of the air channel (20), and another portion forms a gap between it and the cooling flat tube (10) on the other side of the air channel (20). The gap is used for air circulation.

2. The cold storage evaporator for a vehicle refrigerator according to claim 1, characterized in that, The cold storage structure (30) includes at least one first cold storage flat tube (31) and at least one second cold storage flat tube (32). The first cold storage flat tube (31) and the second cold storage flat tube (32) are arranged in an alternating manner. The first connecting surface (301) of the first cold storage flat tube (31) is convex and is at least partially attached to the cooling flat tube (10) on one side of the air channel (20). The second connecting surface (302) of the second cold storage flat tube (32) is convex and is at least partially attached to the cooling flat tube (10) on the other side of the air channel (20).

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

4. The cold storage evaporator for a vehicle refrigerator according to any one of claims 1-3, characterized in that, The cold storage structure (30) is provided with at least one cold storage channel (303) along the second direction, the cold storage channel (303) is used to store the cold storage medium, and the second direction is perpendicular to the first direction.

5. The cold storage evaporator for a vehicle refrigerator according to any one of claims 1-3, characterized in that, The cold storage structure (30) has an inlet pipe (33) and an outlet pipe (34) connected to both sides along the second direction. The inlet pipe (33) is used for the inflow of the cold storage medium, and the outlet pipe (34) is used for the outflow of the cold storage medium. The second direction is perpendicular to the first direction.

6. The cold storage evaporator for a vehicle refrigerator according to claim 1, characterized in that, The first connecting surface (301) for fitting with the refrigeration flat tube (10) and the second connecting surface (302) for fitting with the refrigeration flat tube (10) are both welded to the corresponding refrigeration flat tube (10).

7. The cold storage evaporator for a vehicle refrigerator according to claim 1, characterized in that, A portion of the multiple air channels (20) is provided with a cold storage structure (30), and another portion is provided with heat dissipation fins.

8. The cold storage evaporator for a vehicle refrigerator according to claim 1, characterized in that, It also includes two manifolds (40), which are respectively disposed on both sides of the plurality of cooling flat tubes (10) along the second direction and are connected to the cooling flat tubes (10), wherein the second direction is perpendicular to the first direction.

9. The cold storage evaporator for a vehicle refrigerator according to claim 8, characterized in that, Either of the two manifolds (40) is provided with an inlet (401) and an outlet (402); or one of the two manifolds (40) is provided with an inlet (401) and the other is provided with an outlet (402).

10. The cold storage evaporator for a vehicle refrigerator according to claim 8, characterized in that, The manifold (40) is provided with several partitions (50) to change the flow path of the cold storage evaporator.

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