Vehicle-mounted refrigerator based on shared compressor

Abstract

The invention discloses a vehicle-mounted refrigerator based on a shared compressor. The vehicle-mounted refrigerator based on the shared compressor comprises a heat preservation shell, an inner container and a cold accumulation module are arranged in an inner cavity of the heat preservation shell, the cold accumulation module comprises a cover body fixedly connected to the outer side wall of the inner container, a cold accumulation cavity is formed in an inner cavity of the cover body, a cold accumulation heat exchanger is arranged in the cold accumulation cavity, and cold accumulation liquid for immersing the cold accumulation heat exchanger is arranged in the cold accumulation cavity. The cold storage heat exchanger comprises an upper collecting pipe and a lower collecting pipe, the upper collecting pipe and the lower collecting pipe are communicated through a plurality of radiating pipes, the upper collecting pipe is provided with a water outlet pipe extending out of the heat preservation shell, and the lower collecting pipe is provided with a water inlet pipe extending out of the heat preservation shell. The problem that potential safety hazards are large in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted refrigerators, in particular to a vehicle-mounted refrigerator based on a shared compressor. BACKGROUND

[0002] The existing Chinese patent application with the publication number CN120134895A and the name of "A refrigerant circuit, a thermal management system, a control method and a vehicle" discloses that the phase change of the phase-change refrigerant in the cold storage cavity can be caused by the refrigerator evaporator, i.e., the liquid phase-change refrigerant can be changed into solid phase-change refrigerant, so that the temperature of the whole cold storage cavity is reduced, and the temperature in the first cavity is reduced. However, the vehicle-mounted refrigerator is installed in the passenger cabin, and if the refrigerant entering the refrigerator evaporator leaks, it will cause harm to the human body, and the safety hidden danger is relatively large. SUMMARY

[0003] The purpose of the present application is to provide a vehicle-mounted refrigerator based on a shared compressor which can eliminate safety hidden dangers.

[0004] In order to achieve the above-mentioned purpose of the application, the vehicle-mounted refrigerator based on a shared compressor adopts the following technical scheme:

[0005] A vehicle-mounted refrigerator based on a shared compressor, comprising a heat preservation shell, an inner cavity of the heat preservation shell is provided with an inner container and a cold storage module, the cold storage module comprises a cover body fixed to the outer side wall of the inner container, an inner cavity of the cover body is provided with a cold storage cavity, the cold storage cavity is provided with a cold storage heat exchanger, the cold storage cavity is provided with cold storage liquid which immerses the cold storage heat exchanger, the cold storage heat exchanger comprises an upper header pipe and a lower header pipe, the upper and lower header pipes are communicated through a plurality of heat dissipation pipes, the upper header pipe is provided with a water outlet pipe which extends out of the heat preservation shell, and the lower header pipe is provided with a water inlet pipe which extends out of the heat preservation shell.

[0006] Preferably, a plurality of upper partitions are arranged in the upper header pipe, and a plurality of lower partitions are arranged in the lower header pipe, and the upper and lower partitions are arranged staggered.

[0007] Preferably, a heat dissipation belt is arranged between adjacent heat dissipation pipes.

[0008] Preferably, a heat conduction plate is arranged in the cover body, the heat conduction plate divides the cover body into a cold storage chamber and a heat exchange chamber, the cold storage chamber is provided with a cold storage shell, the inner wall of the cold storage shell and the side wall of the heat conduction plate constitute the cold storage cavity, the heat exchange chamber is provided with a heat exchange module, the heat exchange module divides the heat exchange chamber into an upper heat exchange chamber and a lower heat exchange chamber, the heat exchange module comprises a bottom plate fixed to the heat conduction plate, a plurality of semiconductor refrigerators are arranged between the bottom plate and the heat conduction plate, and a plurality of rows of vertically arranged fins are arranged between the bottom plate and the inner container.

[0009] Preferably, the side wall of the heat conduction plate is provided with heat dissipation fins which are matched with the heat dissipation pipes one by one, and one end of the heat dissipation belt is embedded between adjacent heat dissipation fins.

[0010] Preferably, a heat insulation and vibration isolation sealing pad is arranged between the bottom plate and the heat conducting plate, and the heat insulation and vibration isolation sealing pad surrounds the outside of the semiconductor refrigerator.

[0011] Preferably, heat conducting glue is arranged between the semiconductor refrigerator and the heat conducting plate and between the semiconductor refrigerator and the bottom plate.

[0012] Preferably, the inner container comprises a partition plate installed in the inner cavity of the heat preservation shell, and the partition plate is provided with a refrigeration shell with an opening at the top, and the inner wall of the refrigeration shell and the side wall of the partition plate form a refrigeration chamber for storing articles.

[0013] Preferably, a plurality of fans are arranged in the upper heat exchange chamber, the fans are fixedly connected to the upper portion of the partition plate, the upper portion of the partition plate is provided with air inlets corresponding to the fans, and the lower heat exchange chamber is provided with air outlets arranged in the lower portion of the partition plate.

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

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The refrigeration evaporator of the refrigerator is replaced by the cold storage heat exchanger, and the cooling water exchanges heat with the cold storage liquid, thereby eliminating the safety hazards caused by refrigerant leakage; at the same time, the refrigerant charging amount in the refrigerant circuit can be reduced to reduce the cost, and the maintenance cost of the cooling water circuit is also lower.

[0017] 2. The specific heat capacity of the cooling water is large, and the temperature inertia is strong. After the vehicle stops and the power is turned off, the air conditioner is turned off, and the refrigerator can still work for a long time with the lowest energy consumption.

[0018] 3. The upper and lower partitions arranged staggered prolong the path of the cooling water from the water inlet pipe to the water outlet pipe, and improve the heat exchange efficiency with the cold storage liquid. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the vehicle-mounted refrigerator based on a shared compressor.

[0020] Figure 2 It is a structural schematic view of the cold storage heat exchanger.

[0021] Figure 3 It is a connection schematic view of the heat conducting plate and the cold storage heat exchanger.

[0022] Figure 4 It is a connection schematic view of the heat conducting plate and the heat exchange module.

[0023] Figure 5 It is a connection schematic view of the fan and the partition plate.

[0024] Figure 6The whole vehicle thermal management system diagram applied to the present application.

[0025] Figure 7 The working principle diagram of the present application.

[0026] 1, heat preservation shell, 2, inner container, 21, partition, 211, air inlet, 212, air outlet, 22, cold storage shell, 23, cold storage room, 3, cold storage module, 31, cover, 32, heat conduction plate, 321, heat dissipation fin, 33, cold storage shell, 34, cold storage cavity, 35, cold storage heat exchanger, 351, upper header, 352, lower header, 353, heat dissipation pipe, 354, heat dissipation band, 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, bottom plate, 42, fin, 5, semiconductor refrigerator, 6, heat insulation and vibration isolation sealing gasket, 7, fan, 8, sealing ring. DETAILED DESCRIPTION

[0027] The present application will be further illustrated below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and are not used to limit the scope of the present application. After reading the present application, those skilled in the art can make various equivalent modifications to the present application, which all fall within the scope defined by the claims attached hereto.

[0028] As Figures 1-5As shown, a kind of on-board refrigerator based on common compressor, including heat preservation shell 1, the inner chamber of heat preservation shell 1 installs inner container 2 and cold storage module 3, inner container 2 includes the partition 21 installed in the inner chamber of heat preservation shell 1, the right side of partition 21 is welded with the top of the opening refrigeration shell 22, the inner wall of refrigeration shell 1 and the lateral wall of partition 21 constitute the refrigeration chamber 23 for storing goods, cold storage module 3 includes the cover 31 welded with partition 21, the inner chamber of cover 31 is welded with heat conduction plate 32, heat conduction plate 32 can be selected with aluminum plate, steel plate or copper plate, heat conduction plate 32 divides cover 31 into cold storage chamber and heat exchange chamber, cold storage chamber is welded with cold storage shell 33 in, the inner wall of cold storage shell 33 and the lateral wall of heat conduction plate 32 constitute cold storage cavity 34, cold storage cavity 34 installs cold storage heat exchanger 35, cold storage cavity 34 is injected with the cold storage liquid that immerses cold storage heat exchanger 35, cold storage heat exchanger 35 includes upper header pipe 351 and lower header pipe 352, upper header pipe 351 is welded on the left upper portion of heat conduction plate 32, lower header pipe 352 is welded on the left lower portion of heat conduction plate 32, and the upper and lower header pipes are communicated by a plurality of heat dissipation pipes 353, heat dissipation pipe 353 can be single hole, can also be multi-hole, heat dissipation band 354 is welded between adjacent heat dissipation pipes 353, the left lateral wall of heat conduction plate 32 is integrally formed with the heat dissipation rib 321 that is in one-to-one correspondence with heat dissipation pipe 353, one end of heat dissipation band 354 is embedded between adjacent heat dissipation rib 321, so as to increase the contact area of cold storage heat exchanger 35 and heat conduction plate 32, improve heat exchange efficiency, the left side of upper header pipe 351 is welded with water outlet pipe 355 that extends heat preservation shell 1, the right side of lower header pipe 352 is welded with water inlet pipe 356 that extends heat preservation shell 1, an upper baffle 357 is welded in the side of upper header pipe 351 next to water outlet pipe 355, a lower baffle 358 is welded in the side of lower header pipe 352 next to water inlet pipe 356, after the upper and lower baffles are arranged staggeredly, a plurality of heat dissipation pipes 353 are divided into three groups, after cooling water enters by water inlet pipe 356, it enters upper header pipe 351 by the right group of heat dissipation pipes 353, returns to lower header pipe 352 by the middle group of heat dissipation pipes 353, and then enters upper header pipe 351 by the left group of heat dissipation pipes 353 and is discharged by water outlet pipe 355, so as to increase the path of cooling water in cold storage heat exchanger, so that cooling water and cold storage liquid can be fully heat exchanged, heat exchange module 4 is installed in heat exchange chamber, heat exchange module divides heat exchange chamber into upper heat exchange chamber 36 and lower heat exchange chamber 37, heat exchange module 4 includes bottom plate 41 fixed with heat conduction plate 32, a semiconductor refrigerator 5 is installed between the left lateral wall of bottom plate 41 and heat conduction plate 32, the left lateral wall of semiconductor refrigerator 5 is bonded with heat conduction plate 32 through heat conduction glue, the right lateral wall of semiconductor refrigerator 5 is bonded with bottom plate 41 through heat conduction glue, heat insulation and vibration isolation sealing pad 6 is also installed between bottom plate 41 and heat conduction plate 32, heat insulation and vibration isolation sealing pad 6 surrounds the outside of semiconductor refrigerator 5, heat insulation and vibration isolation sealing pad 6 can prevent water from entering and causing damage to semiconductor refrigerator 5, can also reduce vibration and noise, and can prevent the energy generated by semiconductor refrigerator from being scattered outside, so as to improve the utilization rate of energy generated by semiconductor refrigerator,The right side wall of the bottom plate 41 is integrally formed with a plurality of rows of vertical fins 42, the right ends of the fins abut against the partition plate, the upper and lower heat exchange chambers are communicated through the gaps between the fins, the fins are arranged in multiple rows so that turbulence is generated when the air flow passes through, thereby improving the heat exchange efficiency, a fan 7 is installed in the upper heat exchange chamber, the fan 7 is fixed to the upper portion of the partition plate 21, the upper portion of the partition plate 21 is provided with an air inlet 211 corresponding to the fan 7, a sealing ring 8 is installed between the fan 7 and the partition plate 21, the sealing ring 8 ensures that the air flow discharged by the rotation of the fan does not leak, enhances the efficiency of the fan, reduces the vibration of the partition plate caused by the rotation of the fan, reduces the noise, and the lower heat exchange chamber is provided with an air outlet 212, the air outlet 212 is provided in the lower portion of the partition plate.

[0029] As shown in Figures 6-7 the specific working process and principle of the vehicle-mounted refrigerator based on a common compressor of the present application: during refrigeration, after the cooling liquid circuit and the refrigerant circuit complete heat exchange, the cooled cooling water in the cooling liquid circuit enters the cold storage heat exchanger, i.e., enters the lower header pipe through the water inlet pipe, due to the blocking of the lower partition, the cooling water gathers on the right side of the lower header pipe and then flows upward through the right group of heat dissipation pipes into the upper header pipe, the cooling water in the upper header pipe flows from right to left, due to the blocking of the upper partition, the cooling water can only flow back to the lower header pipe from the middle group of heat dissipation pipes, and then flow to the upper header pipe through the left group of heat dissipation pipes, and then be discharged through the water outlet pipe, so as to fully exchange heat with the cold storage liquid, improve the heat exchange effect, and cool the hot end of the semiconductor refrigerator after being electrified, the cold end of the semiconductor refrigerator transfers cold energy to the fins, at the same time, the fan operates to blow gas into the refrigeration chamber and forms a negative pressure area in the upper heat exchange chamber, the gas in the refrigeration chamber is discharged from the air outlet, cooled by the fins, and then input into the refrigeration chamber by the fan, thereby circulating to reduce the temperature in the refrigeration chamber. When heating, reverse current is supplied to the semiconductor refrigerator, the cold and hot ends of the semiconductor refrigerator are reversed, heat is transferred to the fins, the temperature of the circulating air flow is raised, and thus the temperature in the refrigeration chamber is raised.

[0030] After the present application is integrated with the whole vehicle thermal management system, the cooling water in the cooling liquid circuit of the system is used to realize refrigeration and cold storage, the heat exchange structure is improved, the heat exchange effect is improved, the refrigeration effect is ensured, it is more safe and has lower cost.

[0031] The detailed description listed above is only a specific description of the feasible implementation manner of the present application, and is not used to limit the protection scope of the present application.

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. A cold storage heat exchanger is provided in the cold storage chamber. The cold storage liquid is used to immerse the cold storage heat exchanger in the cold storage chamber. 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 extending out of the insulation shell, and the lower manifold is provided with an inlet pipe extending 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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