Overhead integrated refrigeration unit

Abstract

The utility model relates to a top-mounted integrated refrigeration equipment relates to the technical field of refrigeration equipment of refrigerator car, including the integrated support of being located at the top of the carriage and the compressor assembly, condenser assembly and evaporator assembly of being located on integrated support, integrated support has the convex part that protrudes upwards to the protrude, the protrude separates integrated support into the condensing area of being located at the front end and the evaporation area of being located at the rear end, and the air avoidance area is formed between the protrude and the top of the carriage, and the compressor assembly, condenser assembly and evaporator assembly are integrated and set up together, and the condensing area and evaporation area are separated through the convex part, and the refrigeration system refrigerant flow is short, and the oil return is quick, and through the interference of the pipeline and wire harness of avoiding the air avoidance area and avoiding the top of the carriage position, compared with the split type design, the whole structure is simple, and the installation volume is small, and it is more convenient to install and maintain, and the refrigeration equipment whole installation is in the top of the carriage, and the heat dissipation effect is improved, and does not influence the load space in the carriage.

Description

Technical Field

[0001] This utility model relates to the technical field of refrigeration equipment for refrigerated trucks, and in particular to a top-mounted integrated refrigeration device. Background Technology

[0002] Refrigerated trucks are enclosed vans used to transport frozen or fresh goods. They are specialized refrigerated transport vehicles equipped with refrigeration units and polyurethane insulated compartments. They are commonly used to transport frozen foods, dairy products, fruits and vegetables, vaccines, and pharmaceuticals. The refrigeration unit is crucial for providing a continuous supply of cold air to the refrigerated cargo compartment. Currently, there are two installation methods for refrigerated truck refrigeration units. The first is a separate installation, which includes a condenser assembly and an evaporator assembly. Typically, the condenser assembly is installed on the top or front of the cargo compartment (referred to as top-mounted and front-mounted installations, respectively), while the evaporator assembly is located inside the cargo compartment for cooling. However, this method is cumbersome to install and difficult to maintain, and the separate connecting pipes are longer, reducing temperature control accuracy. The second method is an integrated installation, where the condenser assembly and evaporator assembly are integrated together and installed inside the cargo compartment. This method provides precise temperature control, but the integrated installation inside the cargo compartment reduces cargo space and lowers heat dissipation efficiency. Utility Model Content

[0003] To address the above problems, this utility model provides a top-mounted integrated refrigeration device.

[0004] The top-mounted integrated refrigeration equipment provided in this application adopts the following technical solution:

[0005] A roof-mounted integrated refrigeration device includes an integrated bracket mounted on the roof of a vehicle compartment and a compressor assembly, a condenser assembly, and an evaporator assembly mounted on the integrated bracket. The integrated bracket has an upwardly protruding portion that divides the integrated bracket into a condensing zone at the front end and an evaporating zone at the rear end. A clearance zone is formed between the protruding portion and the roof of the vehicle compartment to avoid pipeline interference. The compressor assembly and condenser assembly are located in the condensing zone, and the evaporator assembly is located in the evaporating zone. The output end of the compressor assembly, the input end of the condenser assembly, the output end of the condenser assembly, the input end of the evaporator assembly, the output end of the evaporator assembly, and the input end of the compressor assembly are sequentially connected by refrigeration pipes. The evaporating zone has an air inlet and an air outlet communicating with the interior space of the vehicle compartment. Air entering through the air inlet is refrigerated by the evaporator assembly and then discharged through the air outlet.

[0006] By adopting the above technical solution, the compressor assembly, condenser assembly, and evaporator assembly are integrated together. The condensation area and evaporation area are separated by the raised part. The overall installation space is small, the refrigerant flow of the refrigeration system is short, and the oil return is fast. In addition, the clearance area avoids interference from the pipes and wiring harnesses on the top of the vehicle body. Compared with the split design, it is easier to install and maintain. The refrigeration equipment is installed on the top of the vehicle body, which improves the heat dissipation effect and does not affect the cargo space inside the vehicle body.

[0007] Optionally, the evaporator assembly includes a mounting base, an evaporator fan, and an evaporator core. The mounting base is fixed on an integrated bracket. Both the air inlet and the air outlet are located on the mounting base. The evaporator fan is located on the mounting base. The air inlet is connected to the air inlet end of the evaporator fan through the evaporation zone. The evaporator core is located on the mounting base, and its air inlet end is connected to the air outlet end of the evaporator fan. An air outlet space is formed between the evaporator core and the side of the mounting base near the protrusion. The air outlet is connected to the air outlet space.

[0008] By adopting the above technical solution, the air in the compartment flows through the air inlet to the evaporator core for heat exchange under the action of the evaporator fan. The air that has absorbed heat through the evaporator core is collected in the air outlet space for temporary storage, and then blown into the compartment containing the cargo through the air outlet, thereby achieving temperature regulation in the cargo space.

[0009] Optionally, the air outlet has an upwardly extending baffle plate, and a water collection trough is formed between the baffle plate and the inner wall of the air outlet space, with a drain pipe provided on the side wall of the water collection trough.

[0010] By adopting the above technical solution, the wind deflector blocks the condensate in the water collection tank, and the condensate is discharged through the drain pipe. This design ensures that the condensate can be discharged in time and reduces the probability that the condensate will be blown onto the cargo in the carriage.

[0011] Optionally, the mounting base is a partition with a heat-insulating pad, and a cover plate with a heat-insulating pad is provided on the mounting base. Both the mounting base and the cover plate are covered with heat-insulating pads on their outer periphery.

[0012] By adopting the above technical solution, the mounting base has a heat preservation effect. Combined with the cover plate with heat insulation pad and the heat insulation pad attached to the outer perimeter, it reduces the loss of internal circulation cold air in the carriage, thereby improving cooling efficiency and reducing power consumption.

[0013] Optionally, the condenser assembly includes a condenser core, a condenser air collector, and a condenser electric fan. The condenser core is mounted on an integrated bracket, the condenser air collector covers the condenser core, and the condenser electric fan is mounted on the condenser air collector with its air inlet connected to the condenser air collector and its air outlet facing upwards.

[0014] By adopting the above technical solution, the compressor assembly compresses the refrigerant into a high-temperature, high-pressure gas. The high-temperature, high-pressure gas enters the condenser assembly, where it exchanges heat with the external environment. Air or water flows through the condenser core, and the heat carried away by the refrigerant is collected in the condenser shroud by the condenser fan and discharged through the outlet of the condenser electric fan, converting into liquid refrigerant that enters the evaporator for the next refrigeration cycle. This achieves heat exchange in the condenser assembly and maintains the refrigeration cycle of the refrigeration equipment.

[0015] Optionally, the condensation zone has multiple air inlet channels, and some of the condensed air passes through the air inlet channels, the condenser core, and the condenser air collector in sequence before being discharged upwards by the condenser electric fan.

[0016] By adopting the above technical solution, multiple air inlet channels increase the air volume entering the evaporator core, thereby improving the heat exchange efficiency of the condenser assembly and enhancing the cooling and heat dissipation effects of the refrigeration equipment.

[0017] Optionally, the integrated bracket is covered with a protective shell, and the protective shell has multiple air inlets on its side wall, which are connected to the air inlet channel.

[0018] By adopting the above technical solution, the protective shell protects the refrigeration equipment, while the air inlet increases the airflow.

[0019] Optionally, the protrusion has multiple weight-reducing holes.

[0020] By adopting the above technical solution, the design of the weight reduction hole can reduce the overall weight of the refrigeration equipment, while also increasing the airflow.

[0021] Optionally, a connecting frame is provided between the condenser air collector shroud and the mounting base, and the connecting frame is located above the weight reduction hole.

[0022] By adopting the above technical solution, the connecting frame increases the connection rigidity between the condenser air collector and the mounting base, thereby increasing the overall rigidity of the refrigeration equipment.

[0023] Optionally, the outer wall of the mounting base is provided with a plurality of mounting buckles for mounting cable ties. The outer wall of the mounting base has through-holes that correspond one-to-one with the mounting buckles. The cable ties are passed through the through-holes and tied to the corresponding mounting buckles to fix the direction of the wire harness inside the mounting base.

[0024] By adopting the above technical solution, cable ties are used to control the routing and fix the wire harness, thereby improving the convenience of installation and maintenance.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The compressor assembly, condenser assembly, and evaporator assembly are integrated into one unit, resulting in a smaller overall installation space. The raised section separates the condensing and evaporating zones, shortening the refrigerant flow path and facilitating rapid oil return. Furthermore, the recessed area avoids interference from pipes and wiring harnesses located on the top of the vehicle. Compared to a separate design, this makes installation and maintenance easier. Installing the refrigeration equipment as a whole on the top of the vehicle improves heat dissipation without affecting the cargo space inside the vehicle.

[0027] 2. The condensate is blocked in the water collection tank by the wind deflector and discharged through the drain pipe. This design ensures that the condensate can be discharged in time and reduces the probability of the condensate being blown onto the goods in the carriage.

[0028] 3. Multiple air inlet channels, air inlets, and weight reduction holes increase the overall cooling efficiency and heat dissipation effect of the refrigeration equipment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this application;

[0030] Figure 2 This is a structural schematic diagram of the protrusion in this application, in which the cover plate has been exploded;

[0031] Figure 3 This is a structural schematic diagram of the air inlet and air outlet in this application;

[0032] Figure 4 This is a top view of the condenser assembly and evaporator assembly in this application;

[0033] Figure 5 This is a structural schematic diagram of the evaporator assembly in this application, in which the evaporator air collector shroud is hidden.

[0034] Reference numerals: 1. Integrated bracket; 11. Mounting hole; 12. Protrusion; 121. Weight reduction hole; 13. Clearance area; 14. Connecting frame; 15. Protective shell; 151. Air inlet; 2. Compressor assembly; 21. Refrigeration piping; 3. Condenser assembly; 31. Condenser core; 32. Condenser air collector shroud; 33. Condenser electric fan; 4. Evaporator assembly; 41. Mounting base; 411. Cover plate; 42. Evaporator... 43. Evaporator fan; 431. Evaporator core; 44. Air outlet space; 45. Air distribution plate; 46. Evaporator air collector hood; 47. Air guide tube; 48. Mounting clip; 5. Through-hole; 61. Condensation zone; 62. Air inlet; 63. Evaporation zone; 64. Air inlet; 65. Air outlet; 66. Water baffle; 67. Water collection tank; 68. Drain pipe; 69. Expansion valve; 60. High-pressure connector; 61. Fixing plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5This application will be described in further detail.

[0036] This application discloses a top-mounted integrated refrigeration device.

[0037] Reference Figure 1 , Figure 2 and Figure 3 A top-mounted integrated refrigeration device includes an integrated bracket 1 located on the top of the vehicle compartment and a compressor assembly 2, a condenser assembly 3, and an evaporator assembly 4 located on the integrated bracket 1. The integrated bracket 1 has mounting holes 11 at the four corners of its lower surface. During installation, the integrated bracket 1 is installed on the top of the refrigerated truck compartment by connecting bolts through the four mounting holes 11.

[0038] Reference Figure 2 and Figure 3 The integrated bracket 1 has an upwardly protruding protrusion 12. The extension direction of the protrusion 12 is perpendicular to the length direction of the refrigerated truck body. The protrusion 12 divides the integrated bracket 1 into a condensation zone 5 at the front end and an evaporation zone 6 at the rear end. An air-avoidance zone 13 is formed between the protrusion 12 and the top of the truck body. The air-avoidance zone 13 is used to avoid pipeline interference when installed in this position.

[0039] Reference Figure 2 , Figure 3 and Figure 4 The compressor assembly 2 and condenser assembly 3 are located in the condensing zone 5, and the evaporator assembly 4 is located in the evaporating zone 6. The output end of the compressor assembly 2, the input end of the condenser assembly 3, the output end of the condenser assembly 3, the input end of the evaporator assembly 4, the output end of the evaporator assembly 4, and the input end of the compressor assembly 2 are connected sequentially by refrigeration pipe 21. The evaporating zone 6 has an air inlet 61 and an air outlet 62 that communicate with the interior space of the vehicle. Air entering through the air inlet 61 is cooled by the evaporator assembly 4 and then discharged through the air outlet 62.

[0040] Reference Figure 2 , Figure 3 and Figure 4 The condenser assembly 3 includes a condenser core 31, a condenser air collector 32, and a condenser electric fan 33. The condenser core 31 is mounted on the integrated bracket 1 and located in the condensation zone 5. The condenser core 31 adopts the existing copper tube and aluminum foil fin combination structure, or it can be replaced by other existing condenser structures. The condenser air collector 32 is mounted on the condenser core 31. The condenser electric fan 33 is mounted on the condenser air collector 32, with its air inlet end connected to the condenser air collector 32 and its air outlet end facing upward.

[0041] Reference Figure 2 , Figure 3 and Figure 4The condensing zone 5 has multiple air inlet channels 51, and the protrusion 12 has multiple weight reduction holes 121. The weight reduction holes 121 not only reduce the overall weight of the refrigeration equipment, but also increase the air volume entering the condenser core 31. The air flow process in the condensing zone 5 is as follows: after air enters through the air inlet channels 51 around the bottom of the condenser core 31 and the weight reduction holes 121, it passes through the condenser core 31, the condenser air collector 32, and then the hot air is discharged upward by the condenser electric fan 33.

[0042] Reference Figure 2 , Figure 3 and Figure 4 The evaporator assembly 4 includes a mounting base 41, an evaporator fan 42, and an evaporator core 43. The mounting base 41 is fixed on the integrated bracket 1 and located in the evaporation zone 6. The mounting base 41 is a box-shaped structure with an open top, and the height of the side of the mounting base 41 near the protrusion 12 is higher than the height of the side away from the protrusion 12. The mounting base 41 is a partition with a heat insulation pad on the inner wall. A cover plate 411 with a heat insulation pad on the inner wall is provided on the mounting base 41. The cover plate 411 is bent and is detachably connected to the mounting base 41 by bolts. Heat insulation pads (not shown in the figure) are attached to the outer periphery of both the mounting base 41 and the cover plate 411.

[0043] Reference Figure 3 , Figure 4 and Figure 5 Both the air inlet 61 and the air outlet 62 are located on the bottom surface of the mounting base 41 and are connected to the cargo space inside the vehicle. The area of ​​the air inlet 61 is larger than the area of ​​the air outlet 62. The evaporator fan 42 is located on the inner bottom wall of the mounting base 41. The air inlet 61 is connected to the air inlet end of the evaporator fan 42 through the evaporation zone 6. The evaporator core 43 is located on the mounting base 41, and its air inlet end is connected to the air outlet end of the evaporator fan 42. The evaporator core 43 adopts an internally threaded high-efficiency copper tube + aluminum fins with good drainage. The windward side of the evaporator core 43 is provided with an air distribution plate 44. An evaporator air collecting hood 45 is provided on the side wall of the air distribution plate 44 away from the evaporator core 43. The air outlet of the evaporator fan 42 extends into the evaporator air collecting hood 45. The air outlet of the evaporator fan 42 is provided with a trumpet-shaped air guide duct 46. The structure and principle of the air guide duct 46, the air distribution plate 44 and the evaporator air collecting hood 45 refer to the relevant structure in Chinese Utility Model Patent Application No. 202521422001.5, and will not be described in detail here.

[0044] Reference Figure 3 , Figure 4 and Figure 5 An air outlet space 431 is formed between the evaporator core 43 and the side of the mounting base 41 near the protrusion 12. The air outlet 62 is connected to the air outlet space 431. The air outlet 62 has an upwardly extending baffle 63. A water collection trough 63 is formed between the baffle 63 and the inner wall of the air outlet space 431. A drain pipe 632 is provided on the side wall of the water collection trough 631.

[0045] Reference Figure 2 , Figure 4 and Figure 5 An expansion valve 64 between the evaporator assembly 4 and the condenser assembly 3 is located in the mounting base 41. The integrated bracket 1 in the evaporation zone 6 is also provided with a fixing plate 651 for fixing the high-pressure connector 65.

[0046] Reference Figure 2 , Figure 4 and Figure 5 A connecting frame 14 is provided between the condenser air collector shroud 32 and the outer wall of the mounting base 41 near the protrusion 12. The connecting frame 14 is located above the weight reduction hole 121. The outer wall of the mounting base 41 is provided with a plurality of mounting buckles 47 for installing cable ties. The outer wall of the mounting base 41 also has through-holes 48 corresponding to the mounting buckles 47. The cable ties are passed through the through-holes 48 and tied to the corresponding mounting buckles 47 to fix the direction of the wire harness in the mounting base 41.

[0047] Reference Figure 1 and Figure 2 The integrated bracket 1 is covered with a protective shell 15. The integrated bracket 1 and the protective shell 15 are detachably connected by screws. The protective shell 15 has multiple air inlets 151 on the front end and side wall of the part above the condensation zone 5. The air inlets 151 are connected to the air inlet channel 51, and the drain pipe 632 extends outward and out of the protective shell 15.

[0048] The working principle of this application embodiment:

[0049] The hot air inside the carriage flows through the air inlet 61 to the evaporator core 43 for heat exchange under the action of the evaporator fan 42. The air that has absorbed heat through the evaporator core 43 is collected in the air outlet space 431 for temporary storage, and then blown into the cargo compartment through the air outlet 62. The condensate generated during this process is collected in the water collection tank 631 and discharged through the drain pipe 632. During the refrigeration cycle, the air volume around the bottom of the condenser core 31 is drawn in through the air inlet 151, the air inlet channel 51 and the weight reduction hole 121, passes through the condenser core 31 and the condenser air collection hood 32, and is then discharged upward by the condenser electric fan 33. The flowing air field improves the heat dissipation effect and refrigeration efficiency of the entire refrigeration equipment.

[0050] By integrating the compressor assembly 2, condenser assembly 3, and evaporator assembly 4 together, and with the protrusion 12 separating the condensing zone 5 and the evaporating zone 6, the refrigerant flow of the refrigeration system is short and the oil return is fast. Furthermore, the avoidance zone 13 avoids interference from pipes and wiring harnesses located on the top of the vehicle compartment. Compared to a split design, the overall structure is simple, the installation volume is small, and it is easier to install and maintain. Installing the refrigeration equipment as a whole on the top of the vehicle compartment improves heat dissipation without affecting the cargo space inside the vehicle compartment.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A top-mounted integrated refrigeration device, characterized in that: The vehicle includes an integrated bracket (1) mounted on the roof of the vehicle body, and a compressor assembly (2), a condenser assembly (3), and an evaporator assembly (4) mounted on the integrated bracket (1). The integrated bracket (1) has an upwardly protruding protrusion (12) that divides the integrated bracket (1) into a condensing zone (5) at the front end and an evaporating zone (6) at the rear end. An air gap (13) is formed between the protrusion (12) and the roof of the vehicle body to avoid pipeline interference. The compressor assembly (2) and the condenser assembly (3) are located in the condensing zone. (5) The evaporator assembly (4) is located in the evaporation zone (6). The output end of the compressor assembly (2), the input end of the condenser assembly (3), the output end of the condenser assembly (3), the input end of the evaporator assembly (4), the output end of the evaporator assembly (4) and the input end of the compressor assembly (2) are connected in sequence through the refrigeration pipe (21). The evaporation zone (6) has an air inlet (61) and an air outlet (62) that are connected to the space inside the vehicle. The air entering through the air inlet (61) is cooled by the evaporator assembly (4) and then discharged through the air outlet (62).

2. The top-mounted integrated refrigeration equipment according to claim 1, characterized in that: The evaporator assembly (4) includes a mounting base (41), an evaporator fan (42), and an evaporator core (43). The mounting base (41) is fixed on the integrated bracket (1). The air inlet (61) and the air outlet (62) are both located on the mounting base (41). The evaporator fan (42) is located on the mounting base (41). The air inlet (61) is connected to the air inlet end of the evaporator fan (42) through the evaporation zone (6). The evaporator core (43) is located on the mounting base (41) and its air inlet end is connected to the air outlet end of the evaporator fan (42). An air outlet space (431) is formed between the evaporator core (43) and the side of the mounting base (41) near the protrusion (12). The air outlet (62) is connected to the air outlet space (431).

3. The top-mounted integrated refrigeration equipment according to claim 2, characterized in that: The air outlet (62) has an upwardly extending baffle plate (63), and a water collection trough (631) is formed between the baffle plate (63) and the inner wall of the air outlet space (431). A drain pipe (632) is provided on the side wall of the water collection trough (631).

4. The top-mounted integrated refrigeration equipment according to claim 2, characterized in that: The mounting base (41) is a partition with a heat insulation pad. The mounting base (41) is covered with a cover plate (411) with a heat insulation pad. Both the mounting base (41) and the cover plate (411) are covered with heat insulation pads.

5. The top-mounted integrated refrigeration equipment according to claim 2, characterized in that: The condenser assembly (3) includes a condenser core (31), a condenser air collector (32), and a condenser electronic fan (33). The condenser core (31) is mounted on an integrated bracket (1). The condenser air collector (32) covers the condenser core (31). The condenser electronic fan (33) is mounted on the condenser air collector (32) with its air inlet end connected to the condenser air collector (32) and its air outlet end facing upward.

6. The top-mounted integrated refrigeration equipment according to claim 5, characterized in that: The condensation zone (5) has multiple air inlet channels (51). Some of the condensed air passes through the air inlet channels (51), the condenser core (31), and the condenser air collector (32) in sequence and is then discharged upward through the condenser electronic fan (33).

7. The top-mounted integrated refrigeration equipment according to claim 6, characterized in that: The integrated bracket (1) is covered with a protective shell (15), and the protective shell (15) has multiple air inlets (151) on its side wall, and the air inlets (151) are connected to the air inlet channel (51).

8. The top-mounted integrated refrigeration equipment according to claim 5, characterized in that: The protrusion (12) has a plurality of weight-reducing holes (121).

9. The top-mounted integrated refrigeration equipment according to claim 8, characterized in that: A connecting bracket (14) is provided between the condenser air collector shroud (32) and the mounting base (41), and the connecting bracket (14) is located above the weight reduction hole (121).

10. The top-mounted integrated refrigeration equipment according to claim 9, characterized in that: The outer wall of the mounting base (41) is provided with a plurality of mounting buckles (47) for mounting cable ties. The outer wall of the mounting base (41) has through-holes (48) that correspond one-to-one with the mounting buckles (47). The cable ties are passed through the through-holes (48) and tied to the corresponding mounting buckles (47) to fix the direction of the wire harness in the mounting base (41).

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