A thin parking air conditioner

Abstract

The application relates to a thin parking air conditioner, which mainly comprises a chassis, an upper shell, a compressor assembly, a parallel flow evaporator assembly, a double-vane centrifugal blower assembly, a heat preservation cover, a condenser assembly, a condensing fan, an expansion valve, a controller assembly and an air outlet box body; the chassis is a rectangular flat chassis, the upper shell is a rectangular flat shell, and the shape of the upper shell matches the shape of the chassis; an evaporator installation area, a compressor installation area, a condenser installation area, a refrigerant pipeline layout area and a controller installation area are arranged in the chassis; the compressor installation area and the evaporator installation area are arranged at the left part in the chassis, and the two areas are arranged in front of and behind each other; the condenser installation area and the controller installation area are arranged at the right part in the chassis, and the two areas are arranged in front of and behind each other; the refrigerant pipeline layout area comprises the area between the left part and the right part in the chassis and the front area of the condenser installation area, and the whole is in an L shape. The application can reduce the height of the air conditioner exposed on the roof of the vehicle and meet the performance requirement.

Description

Technical Field

[0001] This invention belongs to the field of automotive air conditioning technology, and relates to parking air conditioning structure, and particularly to a thin parking air conditioning unit. Background Technology

[0002] Currently, trucks are the most widely used long-haul transport vehicle in logistics. During long-haul transport, non-driving states such as stopping, waiting, loading / unloading, and resting are inevitable. In these non-driving states, drivers usually choose to turn off the vehicle; however, to provide a comfortable air conditioner and environment for the driver in the cab even when the vehicle is off, parking air conditioners that can be directly powered by the vehicle's battery are generally used to regulate parameters such as the temperature inside the cab.

[0003] However, with the continuous development of vehicle engineering, new truck platforms have emerged. These new truck platforms feature tall vehicle bodies to provide a comfortable driving and resting environment for drivers and passengers. However, due to clear height restrictions stipulated by national laws and regulations, existing parking air conditioners on the market can only achieve the industry-standard 2KW cooling performance when the vehicle's height outside the roof is generally above 170mm. Although existing small parking air conditioners meet the height requirement, their cooling performance (cooling capacity under conditions of 27℃ dry-bulb temperature and 19.5℃ wet-bulb temperature inside the vehicle, and 35℃ dry-bulb temperature outside the vehicle) often falls far short of the industry standard of 2KW. Therefore, there is an urgent need to design a parking air conditioner product that can meet both performance and height requirements. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a thin parking air conditioner that can reduce the height of the air conditioner unit exposed on the roof of the vehicle while still meeting performance requirements.

[0005] The above-mentioned objective of this invention is achieved through the following technical solution:

[0006] A thin-profile parking air conditioner is characterized by comprising a chassis, an upper housing, a compressor assembly, a parallel flow evaporator assembly, a dual-impeller centrifugal blower assembly, an insulation cover, a condenser assembly, a condenser fan, an expansion valve, a controller assembly, and an air outlet box.

[0007] The chassis adopts a rectangular flat chassis structure with vertical edges, and the upper shell adopts a rectangular flat shell structure that matches the shape of the chassis. The chassis contains an evaporator mounting area, a compressor mounting area, a condenser mounting area, a refrigerant piping area, and a controller mounting area. The compressor mounting area and the evaporator mounting area are located on the left side of the chassis, arranged front to back. The condenser mounting area and the controller mounting area are located on the right side of the chassis, also arranged front to back. The refrigerant piping area includes the area between the left and right sides of the chassis and the right side of the chassis in front of the condenser mounting area; this area is L-shaped.

[0008] A recessed mounting cavity is provided within the compressor mounting area. The compressor assembly is fixed to the recessed mounting cavity in a stepped, semi-recessed manner. The parallel flow evaporator assembly is installed and fixed to the evaporator device mounting area with an upward tilt. The dual-impeller centrifugal blower assembly is fixed within the evaporator device mounting area and located behind the parallel flow evaporator assembly. The insulation cover is fixed above the parallel flow evaporator assembly and the dual-impeller centrifugal blower assembly and is fixedly connected to the chassis, forming an evaporation chamber inside. An interior air intake is provided on the chassis corresponding to the position of the parallel flow evaporator assembly, and an interior air outlet is provided on the chassis corresponding to the position of the dual-impeller centrifugal blower assembly.

[0009] The condenser fan and condenser assembly are fixed to the condenser device mounting area in an upright manner; an outdoor air intake is provided on the chassis below the condenser assembly;

[0010] The expansion valve is fixed inside the chassis between the left and right sides by an expansion valve fixing bracket; the liquid inlet of the expansion valve is connected to the liquid outlet of the condenser assembly through a liquid pipe; opposite to the liquid inlet of the expansion valve is the mist refrigerant outlet of the expansion valve, which is connected to the inlet pipe of the parallel flow evaporator assembly; the return gas inlet of the expansion valve is connected to the gas outlet pipe of the parallel flow evaporator assembly; the gas outlet of the expansion valve is connected to the suction port of the compressor through the suction pipe of the compressor; and the discharge port of the compressor is connected to the inlet of the condenser assembly through the discharge pipe of the compressor.

[0011] The air outlet box assembly includes an air outlet box, which is fixed as a whole to the bottom of the chassis at a position corresponding to the evaporator installation area. The air outlet box is provided with a separate return air area and an air outlet area. It is connected downward to the return air port and the air outlet on the air outlet box, respectively, and upward to the in-vehicle air intake port and the in-vehicle air outlet port on the chassis, respectively.

[0012] The controller assembly is fixedly installed in the controller installation area and is connected to the electrical interface of the compressor, the control panel inside the air outlet box, and the electrical interface of the condenser fan via wiring harnesses.

[0013] The upper housing is fixedly connected to the chassis cover, and an outdoor air exhaust port is provided on the upper housing corresponding to the mounting position of the condenser fan.

[0014] Furthermore: a shallow groove is provided below the chassis corresponding to the compressor mounting area, and a compressor mounting bracket is fixed in the shallow groove; a countersunk hole is provided on the compressor mounting bracket, and a mounting hole for threaded studs is provided on the chassis accordingly. The compressor assembly is fixed in the compressor mounting area by threaded studs inserted into the countersunk hole, mounting hole and connecting hole of the compressor assembly, and nuts that lock with the upper end of the bolts.

[0015] Furthermore: a front vertical support low platform and a rear vertical support high platform are respectively set in the evaporator device installation area; the upper end surface of the front vertical support low platform is an arc-shaped support surface, forming the low support part of the parallel flow evaporator assembly; the upper front corner of the rear vertical support high platform adopts an arc-shaped support surface structure, forming the high support part of the parallel flow evaporator assembly; vertical ribs are set on both sides of the front vertical support low platform and the rear vertical support high platform to clamp the parallel flow evaporator assembly on both sides, so that the parallel flow evaporator assembly is fixed in the evaporator device installation area.

[0016] Furthermore: Two rows of support columns are provided on the left and right sides behind the parallel flow evaporator assembly in the evaporator device installation area. The double impeller centrifugal blower assembly is placed on the upper part of the two rows of support columns, and the bottom of the double impeller centrifugal blower assembly is fixedly connected to the support columns with self-tapping screws.

[0017] Furthermore: In the evaporator installation area, a slot formed by two concentric rings of vertical ribs is provided around the installation positions of the double impeller centrifugal blower assembly and the parallel flow evaporator assembly. The shape of the slot matches the shape of the edge of the insulation cover. The edge of the insulation cover is inserted into the slot, and several protrusions of the insulation cover are fixedly connected to the chassis by self-tapping screws.

[0018] Furthermore, it also includes two heat insulation cover fixing sheet metals, which are spaced apart and clipped onto the outside of the heat insulation cover, and the lower two sides of the heat insulation cover fixing sheet metals are fixedly connected to the chassis by self-tapping screws.

[0019] Furthermore, four support platforms are provided in the condenser device installation area. The four connecting corners of the condenser assembly and the four connecting corners of the condenser fan assembly are respectively supported on the four support platforms and are fixedly connected to the four support platforms by screws.

[0020] Furthermore: the return air zone and the air outlet zone are arranged at an interval, the air outlet on the air outlet box is located at the bottom of the air outlet box corresponding to the air outlet zone, and an air outlet guide foam box is adhered to the air outlet zone; the return air outlet on the air outlet box is located on the bottom, front and side walls of the air outlet box, and a return air guide foam board is adhered to the return air zone.

[0021] The advantages and positive effects of this invention are as follows:

[0022] 1. The present invention forms a closed air cavity by means of a parallel flow evaporator assembly, a double impeller centrifugal blower assembly, a heat insulation cover, a chassis and an air outlet box assembly, thereby achieving cooling of the air inside the vehicle and achieving good cooling performance.

[0023] 2. This invention uses a parallel flow evaporator assembly. Under the same cooling capacity, the parallel flow evaporator has significant advantages in height and overall volume compared to the traditional tube-plate evaporator, which can provide a strong guarantee for reducing the height of the whole machine.

[0024] 3. By dividing the interior of the chassis into partitions, the present invention achieves a reasonable arrangement of various functional units, connecting pipes and wiring harnesses, which helps to reduce the overall height of the machine.

[0025] 4. The compressor assembly of this invention adopts a stepped semi-submerged placement, and the parallel flow evaporator is placed in a front-to-back inclined manner. It is used in conjunction with a double impeller centrifugal blower. While ensuring performance, the height of the unit is reduced, so that the height of the exposed part of the whole unit (the part above the air outlet box) is kept at 160mm, which can provide greater space utilization for the truck cab.

[0026] 5. The overall flat design of the parking air conditioner in this invention can effectively reduce the wind resistance at the front of the vehicle and help reduce the overall fuel consumption of the vehicle. Attached Figure Description

[0027] Figure 1 This is an exploded perspective view of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall appearance of the present invention;

[0029] Figure 3a This is a perspective view of the chassis of the present invention;

[0030] Figure 3b This is a bottom view of the chassis of the present invention;

[0031] Figure 4 This is a diagram showing the functional areas inside the parking air conditioner of this invention;

[0032] Figure 5 This is a schematic diagram of the installation of the lower air outlet box of the parking air conditioner of the present invention;

[0033] Figure 6 This is an exploded perspective view of the mounting components corresponding to the mounting area of ​​the evaporator device of the present invention;

[0034] Figure 7 This is a schematic diagram of the installation of the double-impeller centrifugal blower assembly of the present invention;

[0035] Figure 8 This is a schematic diagram of the parallel flow evaporator assembly of the present invention;

[0036] Figure 9 This is a schematic diagram of the side of the parallel flow evaporator assembly of the present invention and the vertical ribs on the chassis being pressed together;

[0037] Figure 10 This is a schematic diagram of the installation of the thermal insulation cover of the present invention;

[0038] Figure 11 This is a schematic diagram of the compressor mounting bracket of the present invention being inserted into and fitted with a shallow groove on the chassis;

[0039] Figure 12 This is a schematic diagram of the fixed connection between the compressor mounting bracket and the chassis of the present invention;

[0040] Figure 13 This is a schematic diagram of the compressor assembly installation of the present invention;

[0041] Figure 14 This is a schematic diagram of the installation of the condenser assembly and condenser fan assembly of the present invention;

[0042] Figure 15 This is a schematic diagram showing the fixed connection between the connecting corner parts of the condenser assembly and the condenser fan assembly of the present invention and the support platform on the chassis;

[0043] Figure 16 This is a schematic diagram showing the connection between the expansion valve and the parallel flow evaporator of the present invention;

[0044] Figure 17 This is a schematic diagram of the connection between the expansion valve fixing bracket and the chassis of the present invention;

[0045] Figure 18 This is a schematic diagram of the pipeline layout of the present invention;

[0046] Figure 19 This is a schematic diagram of the installation of the controller components of the present invention;

[0047] Figure 20 This is a schematic diagram of the air outlet guide foam box and the return air outlet guide foam board inserted into the air outlet box body of the present invention;

[0048] Figure 21 This is a schematic diagram of the air outlet box installation of the present invention;

[0049] Figure 22This is a schematic diagram of the connection between the upper housing and the chassis cover of the present invention;

[0050] Figure 23 This is a schematic diagram showing the height of the parallel flow evaporator assembly used in the parking air conditioner of this invention;

[0051] Figure 24 A schematic diagram showing the height of the evaporator used in existing parking air conditioners with a tube-plate design. Detailed Implementation

[0052] The structure of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0053] For a slim parking air conditioner, please see [link / reference]. Figure 1-24 It includes the upper housing 1, condenser fan assembly 2, insulation cover 3, parallel flow evaporator assembly 4, expansion valve 5, expansion valve mounting bracket 6, two insulation cover mounting sheet metals (marked with numbers 7 and 8 respectively), double impeller centrifugal blower assembly 9, controller assembly assembly 10, compressor assembly 11, compressor suction pipe 12, compressor discharge pipe 13, chassis 14, compressor mounting bracket 15, liquid pipe 16, condenser assembly 17, air outlet guide foam box 18, return air outlet guide foam board 19, and air outlet box assembly 20.

[0054] The chassis is a rectangular, flat chassis with a vertical edge on the outer side for mating with the edge of the upper housing. The chassis serves as the mounting base for all components of the air conditioner. The chassis is a one-piece injection-molded structure, and includes mounting areas for the evaporator, compressor, condenser, refrigerant piping, and controller.

[0055] The compressor installation area and the evaporator installation area are located on the left side of the chassis, with the two areas arranged front to back; the condenser installation area and the controller installation area are located on the right side of the chassis, with the two areas arranged front to back; the refrigerant piping layout area includes the area between the left and right sides of the chassis and the area on the right side of the chassis in front of the condenser installation area, which is roughly L-shaped.

[0056] A recessed mounting cavity is provided within the compressor mounting area, and mounting holes for through-bolts are provided. A shallow groove for mounting a compressor mounting bracket is provided at the lower end of the chassis corresponding to the compressor mounting area. The compressor mounting bracket consists of two thin-plate supports, and countersunk holes for through-bolts are machined on the compressor mounting bracket. Figure 11As shown, the compressor mounting bracket (two parts) is inserted into the shallow groove from below the chassis, aligning the countersunk holes on the compressor mounting bracket with the mounting holes of the through-studs in the compressor mounting area. Then, self-tapping screws are used to secure the compressor mounting bracket to the lower end of the chassis. Next, the compressor assembly is installed into the recessed mounting cavity using a stepped, semi-recessed method. Finally, through-studs are inserted into the countersunk holes, mounting holes, and connecting holes on the compressor assembly, and tightened with nuts to fix the compressor assembly in the compressor mounting area, thus forming... Figure 4 The dashed box (B) indicates the compressor area. Using this stepped, semi-recessed compressor design helps reduce the overall height of the air conditioner.

[0057] A ring of slots is provided within the evaporator mounting area, corresponding to the edge shape of the insulation cover. The slots are formed between the inner and outer rings of vertical ribs. Two rows of support columns are located at the rear of the inner ring of vertical ribs. A rear vertical support platform is located in front of the two rows of support columns within the inner ring of vertical ribs. The upper front corner of the rear vertical support platform has a rounded support surface structure, forming the high-level support part of the parallel flow evaporator assembly. A front vertical support platform is located near the front edge of the inner ring of vertical ribs. The upper surface of the front vertical support platform has a rounded support surface, forming the low-level support part of the parallel flow evaporator assembly. Vertical ribs for securing the parallel flow evaporator assembly are provided on both sides of the high-level and low-level support parts. Figure 7 As shown, the dual-impeller centrifugal blower assembly is placed on top of the left and right rows of support columns, and self-tapping screws are used to connect the bottom of the dual-impeller centrifugal blower assembly to the support columns, thus fixing the dual-impeller centrifugal blower assembly within the evaporator mounting area. Figure 8 As shown, the parallel flow evaporator assembly is tilted (the tilt angle is indicated by β in the attached diagram) and supported on the high and low support sections. The two sides of the parallel flow evaporator are pressed against the vertical ribs on the chassis, thus fixing the parallel flow evaporator assembly within the evaporator mounting area. The purpose of this tilted installation is to help reduce the overall height of the unit while maintaining the performance of the individual evaporator units. Figure 9 and 10 As shown, the vertical edge of the insulation cover is then inserted into a ring of slots. Several protruding parts of the insulation cover are then fixed to the chassis using self-tapping screws. This allows the insulation cover to be placed over the parallel flow evaporator assembly and the dual-impeller centrifugal blower assembly. Finally, two sheet metal parts for fixing the insulation cover are installed onto the chassis using self-tapping screws, ensuring the insulation cover and its internal components (the dual-impeller centrifugal blower assembly and the parallel flow evaporator assembly) are firmly secured to the chassis, thus forming... Figure 4The dashed box A in the figure represents the evaporation area. The inlet and outlet pipes of the parallel flow evaporator assembly are located on the inner side of the high position of the inclined parallel flow evaporator, and a notch is reserved on the heat insulation cover for the two pipes to pass through.

[0058] In the condenser mounting area, a support platform is installed at each of the four connecting corners of the condenser assembly and the condenser fan assembly. As shown in Figures 14 and 15, the condenser assembly and the condenser fan assembly are placed sequentially in the condenser mounting area, with the condenser assembly positioned below the condenser fan assembly. The four connecting corners of both condenser assemblies are supported on the four support platforms. Bolts are used to connect the four connecting corners and the four support platforms, thus fixing the condenser assembly and the condenser fan assembly in the condenser mounting area. This forms... Figure 4 The dashed box C in the figure represents the condensation region.

[0059] like Figure 16 As shown, use bolts to connect the inlet pipe section of the parallel flow evaporator assembly to the refrigerant outlet port of the expansion valve, and connect the outlet pipe end of the parallel flow evaporator assembly to the return port of the expansion valve. Figure 17 As shown, attach the expansion valve mounting bracket to the expansion valve and secure it to the chassis in the area between the left and right sides using self-tapping screws. Figure 18 As shown, one end of the compressor suction pipe (with a movable pressure plate) is inserted into the outlet port of the expansion valve, and one end of the liquid pipe is inserted into the inlet port of the expansion valve. After the movable pressure plate of the compressor suction pipe is fitted onto the liquid pipe, the compressor suction pipe and liquid pipe are fixed to the expansion valve with bolts. The compressor suction pipe and compressor discharge pipe are inserted into the compressor inlet and outlet ports respectively, and then connected and sealed by welding. The other end of the compressor discharge pipe and the other end of the liquid pipe are inserted into the inlet and outlet ports of the condenser assembly respectively, and the compressor discharge pipe and liquid pipe are fixed to the condenser assembly with bolts.

[0060] Thus forming Figure 4 The dashed box D shows the refrigerant piping layout area.

[0061] like Figure 19 As shown, the controller assembly is bolted to the controller mounting area on the chassis, and wire harnesses are used to connect the controller assembly to the electrical interfaces of the compressor, the control panel inside the air outlet box, and the condenser fan. This forms a configuration as shown... Figure 4 The dashed box E shows the controller installation area.

[0062] like Figure 20 and 21As shown, apply environmentally friendly adhesive to the bottom of the air outlet guide foam box and the return air outlet guide foam plate, then insert them into the air outlet housing assembly. Connect the wiring harness between the control panel and controller components inside the air outlet housing. Finally, use self-tapping screws to fix the air outlet housing assembly to the bottom of the chassis, thus forming a structure as shown. Figure 5 The dashed box F shows the air outlet box area.

[0063] like Figure 1 As shown, the upper housing adopts a rectangular flat housing structure, and its shape and size match the chassis shape and size. An outdoor air exhaust port is provided on the upper housing corresponding to the condenser fan assembly. The outdoor air exhaust port can adopt a multi-ring opening structure as shown in the attached figure. The upper housing is then fastened to the chassis and secured with bolts at the front and back, thus completing the assembly process of the entire unit.

[0064] Working principle of the invention:

[0065] In this invention, the chassis, upper housing, and structural components installed between the chassis and upper housing are located outside the vehicle body, while the air outlet assembly is located inside the vehicle body. During operation, a condenser fan draws outdoor air into the condenser assembly area through outdoor air inlets on the front and rear sides of the upper housing, the bottom of the chassis, and the left side of the chassis. As the air passes through the condenser, it absorbs heat from the cooling medium, thus cooling it. The air is then exhausted through the outdoor air exhaust port on the upper housing. Meanwhile, air inside the vehicle enters the air outlet box through the return air vent on the air outlet box, and then enters the evaporator chamber through the vehicle interior air inlet on the chassis. Inside the evaporator chamber, the cooling medium in the parallel-flow evaporator absorbs heat from the vehicle interior air, cooling it. The cooled air is then exhausted into the vehicle through the dual-impeller blower assembly via the vehicle interior air outlet on the base, the air outlet area on the air outlet box, and the air outlet itself, thus achieving vehicle cooling.

[0066] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A thin parking air conditioner, characterized in that: It mainly includes a chassis, upper housing, compressor assembly, parallel flow evaporator assembly, double impeller centrifugal blower assembly, insulation cover, condenser assembly, condenser fan, expansion valve, controller assembly and air outlet box; The chassis adopts a rectangular flat chassis structure with vertical edges, and the upper shell adopts a rectangular flat shell structure that matches the shape of the chassis. The chassis contains an evaporator mounting area, a compressor mounting area, a condenser mounting area, a refrigerant piping area, and a controller mounting area. The compressor mounting area and the evaporator mounting area are located on the left side of the chassis, arranged front to back. The condenser mounting area and the controller mounting area are located on the right side of the chassis, also arranged front to back. The refrigerant piping area includes the area between the left and right sides of the chassis and the right side of the chassis in front of the condenser mounting area; this area is L-shaped. A recessed mounting cavity is provided within the compressor mounting area. The compressor assembly is fixed to the recessed mounting cavity in a stepped, semi-recessed manner. The parallel flow evaporator assembly is installed and fixed to the evaporator device mounting area with an upward tilt. The dual-impeller centrifugal blower assembly is fixed within the evaporator device mounting area and located behind the parallel flow evaporator assembly. The insulation cover is fixed above the parallel flow evaporator assembly and the dual-impeller centrifugal blower assembly and is fixedly connected to the chassis, forming an evaporation chamber inside. An interior air intake is provided on the chassis corresponding to the position of the parallel flow evaporator assembly, and an interior air outlet is provided on the chassis corresponding to the position of the dual-impeller centrifugal blower assembly. The condenser fan and condenser assembly are fixed to the condenser device mounting area in an upright manner; an outdoor air intake is provided on the chassis below the condenser assembly; The expansion valve is fixed inside the chassis between the left and right sides by an expansion valve fixing bracket; the liquid inlet of the expansion valve is connected to the liquid outlet of the condenser assembly through a liquid pipe; opposite to the liquid inlet of the expansion valve is the mist refrigerant outlet of the expansion valve, which is connected to the inlet pipe of the parallel flow evaporator assembly; the return gas inlet of the expansion valve is connected to the gas outlet pipe of the parallel flow evaporator assembly; the gas outlet of the expansion valve is connected to the suction port of the compressor through the suction pipe of the compressor; and the discharge port of the compressor is connected to the inlet of the condenser assembly through the discharge pipe of the compressor. The air outlet box assembly includes an air outlet box, which is fixed as a whole to the bottom of the chassis at a position corresponding to the evaporator installation area. The air outlet box is provided with a separate return air area and an air outlet area. It is connected downward to the return air port and the air outlet on the air outlet box, respectively, and upward to the in-vehicle air intake port and the in-vehicle air outlet port on the chassis, respectively. The controller assembly is fixedly installed in the controller installation area and is connected to the electrical interface of the compressor, the control panel inside the air outlet box, and the electrical interface of the condenser fan via wiring harnesses. The upper housing is fixedly connected to the chassis cover, and an outdoor air exhaust port is provided on the upper housing corresponding to the mounting position of the condenser fan.

2. The thin parking air conditioner according to claim 1, characterized in that: A shallow groove is provided below the chassis at the location corresponding to the compressor mounting area, and a compressor mounting bracket is fixed in the shallow groove. A countersunk hole is provided on the compressor mounting bracket, and a mounting hole for threaded studs is provided on the chassis. The compressor assembly is fixed in the compressor mounting area by threaded studs inserted into the countersunk hole, mounting hole and connecting hole of the compressor assembly, and nuts that lock with the upper end of the bolts.

3. The thin parking air conditioner according to claim 1, characterized in that: Within the evaporator installation area, a front vertical support low platform and a rear vertical support high platform are respectively provided at the front and rear. The upper end surface of the front vertical support low platform is an arc-shaped support surface, forming the low-level support part of the parallel flow evaporator assembly. The upper front corner of the rear vertical support high platform adopts an arc-shaped support surface structure, forming the high-level support part of the parallel flow evaporator assembly. Vertical ribs are provided on both sides of the front vertical support low platform and the rear vertical support high platform to clamp the parallel flow evaporator assembly on both sides, so that the parallel flow evaporator assembly is fixed in the evaporator installation area.

4. The thin parking air conditioner according to claim 1, characterized in that: Two rows of support columns are set behind the parallel flow evaporator assembly in the evaporator installation area. The double impeller centrifugal blower assembly is placed on the upper part of the two rows of support columns, and the bottom of the double impeller centrifugal blower assembly is fixedly connected to the support columns with self-tapping screws.

5. The thin parking air conditioner according to claim 1, characterized in that: In the evaporator installation area, a slot is provided around the installation positions of the double impeller centrifugal blower assembly and the parallel flow evaporator assembly. The slot is formed by two rings of vertical ribs, and the shape of the slot matches the shape of the edge of the heat insulation cover. The edge of the heat insulation cover is inserted into the slot, and several protrusions of the heat insulation cover are fixedly connected to the chassis by self-tapping screws.

6. The thin parking air conditioner according to claim 1, characterized in that: It also includes two heat insulation cover fixing sheet metals, which are clipped onto the outside of the heat insulation cover at intervals, and the lower two sides of the heat insulation cover fixing sheet metals are fixedly connected to the chassis by self-tapping screws.

7. The thin parking air conditioner according to claim 1, characterized in that: Four support platforms are provided in the condenser device installation area. The four connecting corners of the condenser assembly and the four connecting corners of the condenser fan assembly are supported on the four support platforms respectively, and are fixedly connected to the four support platforms by screws.

8. The thin parking air conditioner according to claim 1, characterized in that: The return air zone and the air outlet zone are arranged at an interval. The air outlet on the air outlet box is located at the bottom of the air outlet box corresponding to the air outlet zone. An air outlet guide foam box is attached to the air outlet zone. The return air outlet on the air outlet box is located on the bottom, front and side walls of the air outlet box. A return air guide foam board is attached to the return air zone.

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