A parallel flow integrated cold storage evaporator

Abstract

A parallel flow integrated cold storage evaporator comprises a left collecting pipe A, a left collecting pipe B, a right collecting pipe A, a right collecting pipe B, flat tubes, fins, partitions, side partitions, a lower base plate, an upper cover plate, a cold storage agent filling nut, a sensor, a liquid inlet pipe, and a liquid outlet pipe. The present invention makes further structural optimization on the basis of the traditional parallel flow evaporator, combines it with a phase change cold storage material, and creates a new cold storage evaporator integrating cold storage and direct cooling functions. While being able to quickly cool down the refrigerator cavity, it can also store cold energy to maintain the temperature in the refrigerator compartment when the compressor in the car stops running. While ensuring the safe, orderly and efficient operation of each cycle, it also saves space and cost.

Description

Technical Field

[0001] The invention relates to an on-vehicle refrigerator evaporator in the technical field of automobile heat exchangers, in particular to a parallel flow integrated cold storage evaporator. Background Art

[0002] Car refrigerator technology continues to improve with the development of the automobile industry. From the initial exclusive configuration of luxury models to the standard configuration of mid-to-high-end models, car refrigerators have become an important device to improve driving comfort and convenience. With the rise of electric vehicles, the refrigeration solutions of car refrigerators are also constantly optimized to adapt to new energy forms and space constraints; the refrigeration efficiency, energy consumption, noise control and space occupancy of car refrigerators are the main challenges in the design and manufacturing process. The traditional heat exchanger has a complex structure, low space utilization and relatively high cost. The present invention proposes a parallel flow integrated cold storage evaporator, which further optimizes the structure on the basis of the traditional parallel flow evaporator, combines it with a phase change cold storage material, and creates a new type of cold storage evaporator that integrates cold storage and direct cooling functions. It can not only quickly cool the refrigerator cavity while storing cold, but also the integrated design between the cold storage module and the air-cooled heat exchanger can greatly save space and cost. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention proposes a parallel flow integrated cold storage evaporator, which separates the traditional parallel flow evaporator into two parts, the upper part is sealed by side plates as a cold storage module, and the lower part is used as an external evaporator to directly cool the wind.

[0004] The present invention is realized by the following technical scheme, including a left collecting pipe A, a left collecting pipe B, a right collecting pipe A, a right collecting pipe B, flat tubes, fins, partitions, side partitions, a lower bottom plate, an upper cover plate, a refrigerant filling nut, a sensor, a liquid inlet pipe, and a liquid outlet pipe, wherein the left collecting pipe A, the right collecting pipe A, the left collecting pipe B, the right collecting pipe B, the flat tubes, the fins, the partitions, and the lower bottom plate constitute a parallel flow evaporator core, and any flat tube groove below the evaporator core except the bottommost flat tube and the topmost flat tube is replaced by a lower bottom plate groove for fixing the lower bottom plate, and the lower bottom plate is a two-side side The edge of the flat plate is T-shaped, and the T-shaped protruding part is inserted into the lower bottom plate groove on the collecting pipe. The top of the step is used as the insertion depth limiter. The insertion depth of the lower bottom plate is consistent with the flat tube. It is used to divide the evaporator core into two parts. The lower bottom plate is a functional boundary in the evaporator. The part of the core above the lower bottom plate is used as the cold storage module core, and the part of the core below the lower bottom plate is used as the external evaporator core. The two side partitions and the upper cover plate are located around the cold storage module to seal the cold storage module core part. Holes are opened on the side plates or the upper cover plate to install the refrigerant filling nuts for filling the refrigerant. After the filling is completed, it is sealed with a sensor.

[0005] Furthermore, the side partitions are two heat-dissipating aluminum plates that can cooperate with the lower base plate, and are respectively in contact and sealed with the sides of the left collecting pipe A and the right collecting pipe A, the left collecting pipe B and the right collecting pipe B. The side partitions are opened with a matching groove from the bottom, and its size is the same as the protruding part of the lower base plate. During assembly, the groove is inserted into the lower base plate from the side, and at the same time serves as the front and rear limit of the lower base plate and the height limit of the side partitions.

[0006] Furthermore, a filling hole is opened on the side plate or the upper cover plate for filling the coolant, and the coolant flows into the coolant module without leakage. A coolant filling nut is installed above the filling hole and is used to assemble the sensor seal after the filling is completed.

[0007] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention is an evaporator with a cold storage function, which can quickly cool down the refrigerator cavity and store cold to maintain the temperature in the refrigerator compartment when the compressor in the car stops running; second, the cold storage module and the evaporator are integrated into one body, which saves the box space, improves the space utilization rate, and reduces the difficulty of installing the evaporator and the cold storage module on the whole vehicle. Third, the present invention simplifies the parts as much as possible, simplifies the assembly, and has simple procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of the three-dimensional structure of a parallel flow integrated cold storage evaporator of the present invention

[0009] Figure 2 An exploded diagram of a parallel flow integrated cold storage evaporator of the present invention;

[0010] Figure 3 It is a schematic diagram of a left collecting pipe A of a parallel flow integrated cold storage evaporator of the present invention;

[0011] Figure 4 It is a schematic diagram of a left collecting pipe B of a parallel flow integrated cold storage evaporator of the present invention;

[0012] Figure 5 A schematic diagram of a right collecting pipe A of a parallel flow integrated cold storage evaporator of the present invention;

[0013] Figure 6 It is a schematic diagram of a right collecting pipe B of a parallel flow integrated cold storage evaporator of the present invention;

[0014] Figure 7 It is a schematic diagram of a side baffle of a parallel flow integrated cold storage evaporator of the present invention;

[0015] Figure 8 It is a schematic diagram of an upper cover plate of a parallel flow integrated cold storage evaporator of the present invention; DETAILED DESCRIPTION

[0016] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is based on the technical solution of the present invention and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiment.

[0017] Example

[0018] The three-dimensional structural schematic diagram of a parallel flow integrated cold storage evaporator of the present invention is as follows Figure 1 to Figure 2 As shown, it includes a temperature sensor 1, an upper cover plate 2, a right collecting pipe A3, a right collecting pipe B4, a partition 5, a side partition plate 6, a lower bottom plate 7, a left collecting pipe B8, a flat tube 9, a fin 10, a left collecting pipe A11,

[0019] The liquid outlet pipe 12, the liquid inlet pipe 13, the left collecting pipe A11, the right collecting pipe A3, the left collecting pipe B8, the right collecting pipe B4, the flat tube 9, the fin 10, the partition 5, and the lower bottom plate 7 form a parallel flow evaporator core, which is an evaporator core with a thickness of 56, 2 flow paths, and 36 flat tubes in this embodiment.

[0020] The fourth flat tube groove below the evaporator core is replaced by a lower bottom plate groove for fixing the lower bottom plate 7. The lower bottom plate 7 is a flat plate with T-shaped edges on both sides. The T-shaped protruding part is inserted into the lower bottom plate groove on the collecting tube, and the top of the step is used as the insertion depth limiter. The insertion depth of the lower bottom plate 7 is consistent with the flat tube 9, which is used to divide the evaporator core into two parts. The lower bottom plate 7 is a functional boundary in the evaporator. The part of the core above the lower bottom plate 7 is used as the cold storage module core, and the part of the core below the lower bottom plate 7 is used as the external evaporator core. The two side partitions 6 and the upper cover plate 2 are located around the cold storage module to seal the cold storage module core part. A hole is opened on the upper cover plate 2 to install a coolant filling nut for filling coolant. After filling, it is sealed with a sensor.

[0021] The four types of collecting pipes of the parallel flow integrated cold storage evaporator of the present invention are as follows Figures 3 to 6 As shown,

[0022] In this embodiment, 8mm circular holes are opened at the bottom of the left collecting pipe A11 and the left collecting pipe B8, which are used to connect with the liquid inlet pipe 13 and the liquid outlet pipe 12 respectively, so that the refrigerant flows into the evaporator. A row of evenly arranged circular flow holes with a diameter of 4 and a spacing of 10 are opened at the opposite positions of the right collecting pipe A3 and the right collecting pipe B4, which are used for the refrigerant to circulate between the core A and the core B.

[0023] The side partition of the parallel flow integrated cold storage evaporator of the present invention is as follows Figure 7As shown, in this embodiment, a groove with the same width as the evaporator core is opened on the side partition 6 at 3 mm from the bottom, and its size is the same as the protruding part of the lower bottom plate 7. During assembly, the groove is inserted into the lower bottom plate 7 from the side, and at the same time serves as the front and rear limit of the lower bottom plate 7 and the height limit of the side partition 6; the left and right sides of the top are notched for cooperation with the partition 5 when inserted.

[0024] The upper cover plate of the parallel flow integrated cold storage evaporator of the present invention is as follows Figure 8 As shown, in this embodiment, four grooves are punched on the top of the upper cover plate, which match the internal dimensions of the right collecting pipe A3, the right collecting pipe B4, the left collecting pipe B8, and the left collecting pipe A11 for positioning; a sensor nut is installed on the side of the upper cover plate for filling the coolant and fixing the temperature sensor 1.

[0025] In the implementation process of the present invention, the flat tubes 9 and the fins 10 are first stacked in sequence using tooling, wherein:

[0026] The fourth-to-last flat tube 9 is replaced by the lower bottom plate 7. After the flat tube 9 and the fin 10 are stacked, the right collecting tube A3, the right collecting tube B4, the left collecting tube B8, and the left collecting tube A11 are inserted to complete the assembly of the evaporator core. After the core is assembled, the side partitions 6 are inserted into the front and back, respectively, and the bottom positioning grooves on the side partitions 6 are aligned with the protruding parts of the lower bottom plate 7 to complete the assembly of the side partitions 6; after the side partitions 6 are assembled, the partitions 5 are inserted into the upper and lower positions of the evaporator core in turn, and the partitions 5 are inserted into the top grooves of the side partitions 6 during assembly. Finally, the upper cover plate 2 is covered, and the temperature sensor 1 is installed on the upper cover plate 2.

[0027] The liquid inlet pipe 13 and the liquid outlet pipe 12 are respectively inserted into the bottom of the left collecting pipe A11 and the left collecting pipe B8.

[0028] In the implementation process of the present invention, the refrigerant flows from the liquid inlet pipe 13 into the left collecting pipe A11, then flows into the right collecting pipe A3 through the flat tube 9, flows into the right collecting pipe B4 through the flow hole between the right collecting pipe A3 and the right collecting pipe B4, then flows into the left collecting pipe B4 through the flat tube 9, and finally flows out of the evaporator from the left collecting pipe B4 into the liquid outlet pipe 13, forming a refrigeration cycle; the refrigerant is filled into the interior of a parallel flow integrated refrigerant evaporator of the present invention from the sensor nut hole on the upper cover plate 2, and is sealed by the lower bottom plate 7 and the side partition plate 6. The refrigerant contacts the outside of the flat tube 9 and the fin 10, exchanges heat with the refrigerant inside the flat tube 9, and the refrigerant phase changes to achieve refrigerant. The wind flows through the front of the evaporator, and at the same time flows through the refrigerant module and the direct evaporator part, achieving the wind cooling effect while also achieving the refrigerant function.

[0029] The above embodiments are merely illustrative of the design principles and uses of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A parallel flow integrated cold storage evaporator, comprising a left collecting pipe A, a left collecting pipe B, a right collecting pipe A, a right collecting pipe B, a flat tube, a fin, a spacer, a side spacer, a lower bottom plate, an upper cover plate, a cold storage agent filling nut, a sensor, a liquid inlet pipe, and a liquid outlet pipe, wherein the left collecting pipe A, the right collecting pipe A, the left collecting pipe B, the right collecting pipe B, the flat tube, the fin, the spacer, and the lower bottom plate constitute a parallel flow evaporator core, and any flat tube groove except the bottom flat tube and the top flat tube below the evaporator core is replaced by a lower bottom plate groove for fixing the lower bottom plate, and the lower bottom plate is a two-side side The edge of the flat plate is T-shaped, and the T-shaped protruding part is inserted into the lower bottom plate groove on the collecting pipe. The top of the step is used as the insertion depth limiter. The insertion depth of the lower bottom plate is consistent with the flat tube. It is used to divide the evaporator core into two parts. The lower bottom plate is a functional boundary in the evaporator. The part of the core above the lower bottom plate is used as the cold storage module core, and the part of the core below the lower bottom plate is used as the external evaporator core. The two side partitions and the upper cover plate are located around the cold storage module to seal the cold storage module core part. Holes are opened on the side plates or the upper cover plate to install the refrigerant filling nuts for filling the refrigerant. After the filling is completed, it is sealed with a sensor.

2. The parallel flow integrated cold storage evaporator according to claim 1, characterized in that: The side partitions are two heat dissipation aluminum plates that can cooperate with the lower base plate, and are in contact and seal with the sides of the left collecting pipe A and the right collecting pipe A, the left collecting pipe B and the right collecting pipe B respectively. A matching groove is opened at the bottom of the side partition, and its size is the same as the protruding part of the lower base plate. During assembly, the groove is inserted into the lower base plate from the side, and at the same time serves as the front and rear limit of the lower base plate and the height limit of the side partition.

3. The parallel flow integrated cold storage evaporator according to claim 1, characterized in that: A filling hole is opened on the side plate or the upper cover plate for filling the coolant, and the coolant flows into the coolant storage module without leakage. A coolant filling nut is installed above the filling hole and is used to assemble the sensor seal after the filling is completed.

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