A vehicle-mounted refrigerator based on a common compressor

Abstract

The utility model discloses a vehicle refrigerator based on common compressor. The vehicle refrigerator based on common compressor includes the heat preservation casing, and the inner chamber of heat preservation casing is provided with the inner container and the cold storage module, the cold storage module includes the cover of fixed connection in the inner container lateral wall, and the inner chamber of cover is provided with the cold storage cavity, and is provided with the cold storage heat exchanger in the cold storage cavity, and is provided with the cold storage liquid of immersion cold storage heat exchanger in the cold storage cavity, and the cold storage heat exchanger includes the upper header and lower header, and is communicated through a plurality of radiators between upper header and lower header, and the water outlet pipe of upper header is provided with the water inlet pipe of the extension heat preservation casing, and lower header is provided with the water inlet pipe of the extension heat preservation casing. The utility model solves the problem of the safety hidden danger of prior art.

Description

Technical Field

[0001] This utility model relates to the field of vehicle refrigerator technology, and in particular to a vehicle refrigerator based on a shared compressor. Background Technology

[0002] There is a Chinese invention patent application with publication number CN120134895A entitled "A Refrigerant Circuit, Thermal Management System, Control Method, and Vehicle." It discloses that a phase change refrigerant in a cold storage chamber can undergo a phase change through the refrigerator evaporator, transforming the liquid phase change refrigerant into a solid phase change refrigerant, thereby lowering the overall temperature of the cold storage chamber and consequently reducing the temperature in the first cavity. However, since the vehicle refrigerator is installed in the passenger compartment, a leak of refrigerant entering the refrigerator evaporator could cause harm to human health, posing a significant safety hazard. Utility Model Content

[0003] The purpose of this invention is to provide a vehicle-mounted refrigerator based on a shared compressor that can eliminate safety hazards.

[0004] To achieve the above-mentioned objectives of this utility model, the vehicle-mounted refrigerator based on a shared compressor adopts the following technical solution:

[0005] A vehicle-mounted refrigerator based on a shared compressor includes an insulated shell, an inner liner and a cold storage module within the inner cavity of the insulated shell, the cold storage module including a cover fixed to the outer wall of the inner liner, a cold storage chamber within the inner cavity of the cover, a cold storage heat exchanger within the cold storage chamber, and a cold storage liquid immersing the cold storage heat exchanger within the cold storage chamber. The cold storage heat exchanger includes an upper manifold and a lower manifold, which are connected by multiple heat dissipation pipes. The upper manifold has an outlet pipe extending out of the insulated shell, and the lower manifold has an inlet pipe extending out of the insulated shell.

[0006] Preferably, the upper manifold is provided with a plurality of upper baffles, and the lower manifold is provided with a plurality of lower baffles, with the upper and lower baffles being staggered.

[0007] Preferably, a heat dissipation strip is provided between adjacent heat dissipation pipes.

[0008] Preferably, a heat-conducting plate is provided inside the cover, which divides the cover into a cold storage chamber and a heat exchange chamber. A cold storage shell is provided inside the cold storage chamber, and the inner wall of the cold storage shell and the side wall of the heat-conducting plate form a cold storage cavity. A heat exchange module is provided inside the heat exchange chamber, which divides the heat exchange chamber into an upper heat exchange chamber and a lower heat exchange chamber. The heat exchange module includes a base plate fixed to the heat-conducting plate, a number of semiconductor coolers are provided between the base plate and the heat-conducting plate, and a number of rows of vertically arranged fins are provided between the base plate and the inner liner.

[0009] Preferably, the sidewall of the heat-conducting plate is provided with heat dissipation fins that fit one-to-one with the heat dissipation pipes, and one end of the heat dissipation strip is embedded between adjacent heat dissipation fins.

[0010] Preferably, a heat-insulating and vibration-damping sealing gasket is provided between the base plate and the heat-conducting plate, and the heat-insulating and vibration-damping sealing gasket surrounds the outside of the semiconductor cooler.

[0011] Preferably, thermally conductive adhesive is provided between the semiconductor cooler and the heat-conducting plate, and between the semiconductor cooler and the base plate.

[0012] Preferably, the inner liner includes a partition installed in the inner cavity of the insulated shell, and a refrigerated shell with an opening at the top is provided on one side of the partition. The inner wall of the refrigerated shell and the side wall of the partition constitute a refrigerated compartment for storing items.

[0013] Preferably, the upper heat exchange chamber is provided with a plurality of fans, the fans are fixed to the upper part of the partition, the upper part of the partition is provided with an air inlet corresponding to the fan, and the lower heat exchange chamber is provided with an air outlet, which is located at the lower part of the partition.

[0014] Preferably, a sealing ring is provided between the fan and the partition.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By replacing the refrigerator evaporator with a cold storage heat exchanger, cooling water is introduced to exchange heat with the cold storage liquid, thereby eliminating the safety hazards caused by refrigerant leakage; at the same time, the amount of refrigerant charged in the refrigerant circuit can be reduced to lower costs, and the maintenance cost of the cooling water circuit is also lower.

[0017] 2. Cooling water has a high specific heat capacity and strong temperature inertia. Even after the vehicle is parked and the power is off, and the air conditioner is turned off, the refrigerator can still work for a long time with the lowest energy consumption.

[0018] 3. The staggered arrangement of the upper and lower baffles extends the path of the cooling water from the inlet pipe to the outlet pipe, improving the heat exchange efficiency with the cold storage liquid. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the vehicle-mounted refrigerator based on a shared compressor according to this utility model.

[0020] Figure 2 This is a schematic diagram of a cold storage heat exchanger.

[0021] Figure 3 This is a schematic diagram showing the connection between the heat-conducting plate and the cold storage heat exchanger.

[0022] Figure 4 This is a schematic diagram showing the connection between the heat-conducting plate and the heat exchange module.

[0023] Figure 5 This is a schematic diagram showing the connection between the fan and the partition.

[0024] Figure 6 This is a diagram of the vehicle thermal management system used in this utility model.

[0025] Figure 7 This is a schematic diagram illustrating the working principle of this utility model.

[0026] The components include: 1. Insulation shell; 2. Inner liner; 21. Partition; 211. Air inlet; 212. Air outlet; 22. Refrigeration shell; 23. Refrigeration chamber; 3. Cold storage module; 31. Cover; 32. Heat conduction plate; 321. Heat dissipation fins; 33. Cold storage shell; 34. Cold storage cavity; 35. Cold storage heat exchanger; 351. Upper manifold; 352. Lower manifold; 353. Heat dissipation pipe; 354. Heat dissipation strip; 355. Water outlet pipe; 356. Water inlet pipe; 357. Upper partition; 358. Lower partition; 36. Upper heat exchange chamber; 37. Lower heat exchange chamber; 4. Heat exchange module; 41. Base plate; 42. Fins; 5. Semiconductor cooler; 6. Thermal insulation and vibration damping sealing gasket; 7. Fan; 8. Sealing ring. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0028] like Figure 1-5As shown, a vehicle-mounted refrigerator based on a shared compressor includes an insulated shell 1, an inner liner 2 and a cold storage module 3 installed inside the cavity of the insulated shell 1. The inner liner 2 includes a partition 21 installed inside the cavity of the insulated shell 1. A refrigeration shell 22 with an opening at the top is welded to the right side of the partition 21. The inner wall of the refrigeration shell 1 and the side wall of the partition 21 constitute a refrigeration compartment 23 for storing items. The cold storage module 3 includes a cover 31 welded to the partition 21. A heat-conducting plate 32 is welded to the inner cavity of the cover 31. The heat-conducting plate 32 can be made of aluminum, steel, or copper. The heat-conducting plate 32 divides the cover 31 into a cold storage compartment and a heat exchange compartment. A cold storage shell 33 is welded inside the cold storage compartment. The inner wall of the cold storage shell 33 and the side wall of the heat-conducting plate 32 constitute a cold storage cavity 34. A cold storage heat exchanger 35 is installed inside the cold storage cavity 34. A cold storage liquid is injected into the cold storage chamber 34 to submerge the cold storage heat exchanger 35. The cold storage heat exchanger 35 includes an upper manifold 351 and a lower manifold 352. The upper manifold 351 is welded to the upper left side of the heat-conducting plate 32, and the lower manifold 352 is welded to the lower left side of the heat-conducting plate 32. The upper and lower manifolds are connected by multiple heat dissipation pipes 353. The heat dissipation pipes 353 can be single-hole or multi-hole. A heat dissipation strip 354 is welded between adjacent heat dissipation pipes 353. The left side wall of the heat-conducting plate 32 is integrally formed with heat dissipation fins 321 that fit one-to-one with the heat dissipation pipes 353. One end of the heat dissipation strip 354 is embedded between adjacent heat dissipation fins 321, thereby increasing the contact area between the cold storage heat exchanger 35 and the heat-conducting plate 32 and improving the heat exchange efficiency. An extension is welded to the left side of the upper manifold 351. The outlet pipe 355 of the insulation shell 1 is connected to the inlet pipe 356 extending out of the insulation shell 1 on the right side of the lower manifold 352. An upper baffle 357 is welded to the side of the upper manifold 351 next to the outlet pipe 355, and a lower baffle 358 is welded to the side of the lower manifold 352 next to the inlet pipe 356. The upper and lower baffles are staggered, dividing the multiple heat dissipation pipes 353 into three groups. Cooling water enters through the inlet pipe 356, enters the upper manifold 351 through the right group of heat dissipation pipes 353, returns to the lower manifold 352 through the middle group of heat dissipation pipes 353, and then enters the upper manifold 351 through the left group of heat dissipation pipes 353 and is discharged through the outlet pipe 355. This increases the path of the cooling water in the cold storage heat exchanger, allowing the cooling water and the cold storage liquid to exchange heat fully. Heat exchange module 4 is installed, dividing the heat exchange chamber into upper heat exchange chamber 36 and lower heat exchange chamber 37. Heat exchange module 4 includes a base plate 41 fixedly connected to heat-conducting plate 32. A thermoelectric cooler 5 is installed between the left side wall of the base plate 41 and the heat-conducting plate 32. The left side wall of the thermoelectric cooler 5 is bonded to the heat-conducting plate 32 with thermally conductive adhesive, and the right side wall of the thermoelectric cooler 5 is bonded to the base plate 41 with thermally conductive adhesive. A heat-insulating and vibration-damping sealing gasket 6 is also installed between the base plate 41 and the heat-conducting plate 32. The heat-insulating and vibration-damping sealing gasket 6 surrounds the outside of the thermoelectric cooler 5, preventing water from entering and damaging the thermoelectric cooler 5, reducing vibration and noise, and preventing the energy generated by the thermoelectric cooler from dissipating, thereby improving the energy utilization rate of the thermoelectric cooler.The right side wall of the base plate 41 is integrally formed with several rows of vertically arranged fins 42. The right ends of the fins abut against the partition plate. The upper and lower heat exchange chambers are connected through the gaps between the fins. The fins are arranged in multiple rows to generate turbulence when the airflow passes through, thereby improving heat exchange efficiency. A fan 7 is installed in the upper heat exchange chamber and is fixed to the upper part of the partition plate 21. An air inlet 211 corresponding to the fan 7 is opened on the upper part of the partition plate 21. A sealing ring 8 is installed between the fan 7 and the partition plate 21 to ensure that the airflow discharged by the fan does not leak, thereby enhancing the efficiency of the fan and reducing the vibration of the partition plate caused by the fan rotation, thus reducing noise. An air outlet 212 is opened in the lower part of the partition plate.

[0029] like Figure 6-7 As shown, the specific working process and principle of the vehicle-mounted refrigerator based on a shared compressor of this utility model are as follows: During refrigeration, after the coolant circuit and refrigerant circuit complete heat exchange, the cooled water in the coolant circuit enters the cold storage heat exchanger, that is, it enters the lower manifold through the inlet pipe. Due to the obstruction of the lower baffle, the coolant gathers on the right side of the lower manifold and then flows upward through the set of heat dissipation pipes on the right side into the upper manifold. The coolant entering the upper manifold flows from right to left. Due to the obstruction of the upper baffle, the coolant can only return to the lower manifold through the set of heat dissipation pipes in the middle. The coolant then flows back to the upper manifold through the heat dissipation pipes on the left and is discharged through the outlet pipe, thus ensuring sufficient heat exchange with the coolant and improving the heat exchange effect. After the coolant temperature drops, it cools the hot end of the energized thermoelectric cooler, while the cold end of the thermoelectric cooler transfers its coolness to the fins. Simultaneously, the fan blows air into the refrigerator compartment, creating a negative pressure zone in the upper heat exchange chamber. The air inside the refrigerator compartment is discharged through the air outlet, cooled by the fins, and then the fan pumps the low-temperature air back into the refrigerator compartment, thus circulating and lowering the temperature inside the refrigerator compartment. During heating, a reverse current is applied to the thermoelectric cooler, reversing the hot and cold ends and transferring heat to the fins, increasing the temperature of the circulating airflow and thus raising the temperature inside the refrigerator compartment.

[0030] When integrated with the vehicle thermal management system, this utility model utilizes the cooling water in the system's coolant circuit to achieve cooling and cold storage, while improving the heat exchange structure and enhancing the heat exchange effect. It is safer and less expensive while ensuring the cooling effect.

[0031] The detailed description listed above is merely a specific description of feasible implementation methods of this utility model and is not intended to limit the scope of protection of this utility model.

Claims

1. A vehicle-mounted refrigerator based on a shared compressor, comprising an insulated shell, the inner cavity of which is provided with an inner liner and a cold storage module, characterized in that: The cold storage module includes a cover fixed to the outer wall of the inner liner. The inner cavity of the cover is provided with a cold storage chamber. The cold storage chamber is provided with a cold storage heat exchanger. The cold storage chamber is provided with a cold storage liquid that is immersed in the cold storage heat exchanger. The cold storage heat exchanger includes an upper manifold and a lower manifold. The upper and lower manifolds are connected by multiple heat dissipation pipes. The upper manifold is provided with an outlet pipe that extends out of the insulation shell, and the lower manifold is provided with an inlet pipe that extends out of the insulation shell.

2. The vehicle-mounted refrigerator based on a shared compressor according to claim 1, characterized in that: The upper manifold is provided with several upper baffles, and the lower manifold is provided with several lower baffles, with the upper and lower baffles arranged in a staggered manner.

3. The vehicle-mounted refrigerator based on a shared compressor according to claim 1, characterized in that: A heat dissipation strip is installed between adjacent heat dissipation pipes.

4. The vehicle-mounted refrigerator based on a shared compressor according to claim 3, characterized in that: The enclosure is equipped with a heat-conducting plate, which divides the enclosure into a cold storage chamber and a heat exchange chamber. The cold storage chamber is equipped with a cold storage shell, and the inner wall of the cold storage shell and the side wall of the heat-conducting plate form a cold storage cavity. The heat exchange chamber is equipped with a heat exchange module, which divides the heat exchange chamber into an upper heat exchange chamber and a lower heat exchange chamber. The heat exchange module includes a base plate fixed to the heat-conducting plate, and several semiconductor coolers are arranged between the base plate and the heat-conducting plate. Several rows of vertically arranged fins are arranged between the base plate and the inner liner.

5. The vehicle-mounted refrigerator based on a shared compressor according to claim 4, characterized in that: The heat-conducting plate has heat-dissipating fins on its sidewalls that fit one-to-one with the heat dissipation pipes, and one end of the heat dissipation strip is embedded between adjacent heat dissipation fins.

6. The vehicle-mounted refrigerator based on a shared compressor according to claim 4, characterized in that: A heat-insulating and vibration-damping sealing gasket is provided between the base plate and the heat-conducting plate, and the heat-insulating and vibration-damping sealing gasket surrounds the outside of the semiconductor cooler.

7. The vehicle-mounted refrigerator based on a shared compressor according to claim 6, characterized in that: Thermal adhesive is provided between the semiconductor cooler and the heat-conducting plate, and between the semiconductor cooler and the base plate.

8. The vehicle-mounted refrigerator based on a shared compressor according to claim 7, characterized in that: The inner liner includes a partition installed inside the insulated shell cavity. A refrigerated shell with an opening at the top is provided on one side of the partition. The inner wall of the refrigerated shell and the side wall of the partition constitute a refrigerated compartment for storing items.

9. The vehicle-mounted refrigerator based on a shared compressor according to claim 8, characterized in that: The upper heat exchange chamber is equipped with several fans, which are fixed to the upper part of the partition. The upper part of the partition has an air inlet corresponding to the fan, and the lower heat exchange chamber has an air outlet located at the lower part of the partition.

10. The vehicle-mounted refrigerator based on a shared compressor according to claim 9, characterized in that: A sealing ring is provided between the fan and the partition.

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