Commercial vehicle top-mounted air conditioning system

Abstract

The utility model relates to an overhead air-conditioning system for a commercial vehicle. The overhead air-conditioning system comprises an overhead air-conditioning body, a main condenser, an auxiliary condenser and a compressor, the overhead air conditioner body is arranged at the upper end of the cab top cover; the auxiliary condenser is connected with the main condenser through a pipeline, the main condenser and the auxiliary condenser are respectively connected with the compressor through pipelines, and the compressor is connected with the overhead air conditioner body through a pipeline; the main condenser and the auxiliary condenser are connected in series, so that the refrigeration speed is greatly increased; the main condenser-evaporator connecting pipe and the compressor-evaporator connecting pipe which are disconnected are adopted, so that disassembly, assembly and maintenance are convenient; the overhead air conditioner body is mounted at the top of a cab, assembly is simple, the air outlet panel is communicated with the interior of the cab, and personnel in the cab can operate easily.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air conditioners, in particular to a roof-mounted air conditioning system for commercial vehicles. Background Art

[0002] With the rapid development of the commercial vehicle industry, people's requirements for automotive air-conditioning systems are also increasing. The air outlet of the traditional front air-conditioning system is set on the dashboard. Due to location restrictions, the cooling experience of rear passengers is poor, and it takes a long time to cool the entire cab. For various reasons, the front air-conditioning system can no longer meet market demand. Now the installation of roof-mounted air-conditioning systems is increasingly widely used in the field of commercial vehicle air-conditioning.

[0003] However, due to the large space inside the cab of commercial vehicles and the complex and changeable operating environment, the cooling capacity of most roof-mounted air-conditioning systems on the market is still insufficient and the cooling speed is slow. In addition, the roof-mounted air-conditioning systems all use integrated refrigerant pipes, but the integrated refrigerant pipes are long and difficult to repair and disassemble. Utility Model Content

[0004] The utility model proposes a roof-mounted air-conditioning system for commercial vehicles, which connects a main condenser and an auxiliary condenser in series, greatly improving the refrigeration speed; a disconnected main condenser-evaporator connecting pipe and a compressor-evaporator connecting pipe are adopted, which are convenient for disassembly, assembly and maintenance; the roof-mounted air-conditioning body is installed on the top of the cab, which is simple to assemble; the air outlet panel is connected with the interior of the cab, and it is easy for people in the cab to operate.

[0005] In order to solve the problems in the above background technology, the present invention is implemented through the following technical solutions:

[0006] A roof-mounted air-conditioning system for a commercial vehicle comprises a roof-mounted air-conditioning body, a main condenser, an auxiliary condenser and a compressor; the roof-mounted air-conditioning body is arranged on the upper end of a cab roof, the vehicle cooling module is arranged on the main condenser, the front end attachment of a vehicle frame is arranged on the auxiliary condenser, and the vehicle engine is arranged on the compressor; the auxiliary condenser is connected to the main condenser through a pipeline, the main condenser and the auxiliary condenser are respectively connected to the compressor through pipelines, and the compressor is connected to the roof-mounted air-conditioning body through a pipeline.

[0007] Preferably, the pipeline includes a main-auxiliary condenser connecting pipe, a main condenser-evaporator connecting pipe, a compressor-auxiliary condenser connecting pipe and a compressor-evaporator connecting pipe; the main condenser and the auxiliary condenser are connected in series through the main-auxiliary condenser connecting pipe; one end of the main condenser-evaporator connecting pipe is connected to the main condenser, and the other end of the main condenser-evaporator connecting pipe is connected to the overhead air-conditioning body; one end of the compressor-auxiliary condenser connecting pipe is connected to the compressor, and the other end of the compressor-auxiliary condenser connecting pipe is connected to the auxiliary condenser, one end of the compressor-evaporator connecting pipe is connected to the compressor, and the other end of the compressor-evaporator connecting pipe is connected to the overhead air-conditioning body.

[0008] Preferably, the main condenser-evaporator connecting pipe and the compressor-evaporator connecting pipe are both disconnected structures, and both ends of the disconnected structure are buckled by pressure plates and fastened by bolts.

[0009] Preferably, the pressure plate includes an upper pressure plate and a lower pressure plate, the upper pressure plate is buckled and connected to the lower pressure plate, and the upper pressure plate is communicated with the lower pressure plate; the upper pressure plate is provided with a threaded hole, and the lower pressure plate is provided with the bolt, and after the upper pressure plate and the lower pressure plate are buckled, they are fastened by the bolt and the threaded hole.

[0010] Preferably, the roof-mounted air-conditioning body is connected to a drain pipe, one end of the drain pipe is connected to a drain port of the roof-mounted air-conditioning body, and the other end of the drain pipe is arranged at the lower end of the cab.

[0011] Preferably, it also includes a pipe protection groove, which includes a vertical pipe protection groove and a horizontal pipe protection groove. The vertical pipe protection groove is arranged at the rear of the cab, and the horizontal pipe protection groove is arranged at the bottom of the cab. The drain pipe passes through the vertical pipe protection groove and is arranged at the lower end of the cab; the compressor-evaporator connecting pipe and the main condenser-evaporator connecting pipe respectively pass through the horizontal pipe protection groove and the vertical pipe protection groove to be connected to the roof-mounted air-conditioning body.

[0012] Preferably, a condensing fan is provided inside the auxiliary condenser.

[0013] Preferably, the roof-mounted air-conditioning body includes a unit assembly, an air outlet panel and a return air hood, the upper end of the air outlet panel is connected to the unit assembly, the lower end of the air outlet panel is connected to the interior of the cab, the return air hood is provided at the upper end of the unit assembly; the lower end of the air outlet panel is provided with an air outlet and an air-conditioning switch; the unit assembly is provided with the drain outlet, and the drain outlet is connected to the drain pipe.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] 1. Connect the main and auxiliary condensers in series to increase the refrigeration speed and refrigeration capacity;

[0016] 2. The disconnected main condenser-evaporator connecting pipe and the compressor-evaporator connecting pipe are used, which is convenient for disassembly and maintenance;

[0017] 3. The air outlet panel is connected to the interior of the cab, making it easy for people in the cab to operate; BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a schematic diagram of the pressing plate structure of the utility model.

[0021] Figure annotation:

[0022] 1. Roof-mounted air conditioner body; 111. Unit assembly; 112. Air outlet panel; 113. Return air hood; 2. Main condenser; 3. Auxiliary condenser; 31. Condensing fan; 4. Compressor; 5. Main and auxiliary condenser connecting pipes; 6. Main condenser-evaporator connecting pipe; 7. Compressor-auxiliary condenser connecting pipe; 8. Compressor-evaporator connecting pipe; 9. Pressure plate; 91. Upper pressure plate; 92. Lower pressure plate; 10. Drain pipe; 11. Vertical pipe protection groove; 12. Horizontal pipe protection groove. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 3 As shown, a roof-mounted air-conditioning system for a commercial vehicle includes a roof-mounted air-conditioning body 1, a main condenser 2, an auxiliary condenser 3 and a compressor 4; the roof-mounted air-conditioning body 1 is provided at the upper end of the cab roof, the vehicle cooling module is provided with the main condenser 2, the front end attachment of the frame is provided with the auxiliary condenser 3, and the vehicle engine is provided with the compressor 4; the auxiliary condenser 3 is connected to the main condenser 2 through a pipeline, the main condenser 2 and the auxiliary condenser 3 are respectively connected to the compressor 4 through pipelines, and the compressor 4 is connected to the roof-mounted air-conditioning body 1 through a pipeline.

[0024] The pipeline includes a main-auxiliary condenser connecting pipe 5, a main condenser-evaporator connecting pipe 6, a compressor-auxiliary condenser connecting pipe 7 and a compressor-evaporator connecting pipe 8; the main condenser 2 and the auxiliary condenser 3 are connected in series through the main-auxiliary condenser connecting pipe 5; one end of the main condenser-evaporator connecting pipe 6 is connected to the main condenser 2, and the other end of the main condenser-evaporator connecting pipe 6 is connected to the overhead air-conditioning body 1; one end of the compressor-auxiliary condenser connecting pipe 7 is connected to the compressor 4, and the other end of the compressor-auxiliary condenser connecting pipe 7 is connected to the auxiliary condenser 3, one end of the compressor-evaporator connecting pipe 8 is connected to the compressor 4, and the other end of the compressor-evaporator connecting pipe 8 is connected to the overhead air-conditioning body 1.

[0025] The main condenser 2 and the auxiliary condenser 3 are connected in series through the main-auxiliary condenser connecting pipe 5. The refrigerant coming out of the compressor 4 enters the auxiliary condenser 3 through the compressor-auxiliary condenser connecting pipe 7, enters the main condenser 2 through the main-auxiliary condenser connecting pipe 5, and then enters the overhead air-conditioning body 1 through the main condenser-evaporator connecting pipe 6; the refrigerant flowing out of the overhead air-conditioning body 1 returns to the compressor 4 through the compressor-evaporator connecting pipe 8 to complete a refrigeration cycle.

[0026] The main condenser-evaporator connecting pipe 6 and the compressor-evaporator connecting pipe 8 are both disconnected structures, and both ends of the disconnected structure are buckled by a pressing plate 9 and fastened by bolts.

[0027] The pressure plate 9 includes an upper pressure plate 91 and a lower pressure plate 92, which are buckled and connected with each other, and are communicated with each other; the upper pressure plate 91 is provided with a threaded hole, and the lower pressure plate 92 is provided with a bolt, and after the upper pressure plate 91 and the lower pressure plate 92 are buckled, they are fastened by the bolts and the threaded holes.

[0028] The traditional integrated refrigerant pipeline requires the entire long pipe to be pulled out from various surrounding systems, which is difficult to operate and not easy to implement; while the main condenser-evaporator connecting pipe 6 and the compressor-evaporator connecting pipe 8 are both disconnected structures. It is only necessary to open the pressure plates 9 at both ends of the disconnected structure, and the front and rear ends of the main condenser-evaporator connecting pipe 6 and the compressor-evaporator connecting pipe are respectively pulled out from the front and back. The operation is convenient and simple, and it is easier to achieve maintenance and disassembly.

[0029] The ceiling-mounted air conditioner body 1 is connected to a drainage pipe 10, one end of the drainage pipe 10 is connected to the drainage port of the ceiling-mounted air conditioner body 1, and the other end of the drainage pipe 10 is arranged at the lower end of the cab.

[0030] It also includes a pipe protection groove, which includes a vertical pipe protection groove 11 and a horizontal pipe protection groove 12. The vertical pipe protection groove 11 is arranged at the rear of the cab, and the horizontal pipe protection groove 12 is arranged at the bottom of the cab. The drain pipe 10 passes through the vertical pipe protection groove 11 and is arranged at the lower end of the cab; the compressor-evaporator connecting pipe 8 and the main condenser-evaporator connecting pipe 6 pass through the horizontal pipe protection groove 12 and the vertical pipe protection groove 11 respectively to be connected to the top-mounted air-conditioning body 1.

[0031] A condensing fan 31 is provided inside the sub-condenser 3 .

[0032] The roof-mounted air conditioner body 1 includes a unit assembly 111, an air outlet panel 112 and a return air cover 113. The upper end of the air outlet panel 112 is connected to the unit assembly 111, and the lower end of the air outlet panel 112 is connected to the interior of the cab. The return air cover 113 is provided at the upper end of the unit assembly 111; the lower end of the air outlet panel 112 is provided with an air outlet and an air conditioning switch; the unit assembly 111 is provided with a drain outlet, which is connected to the drain pipe 10.

[0033] The air outlet and the air conditioning switch are integrated at the lower end of the air outlet panel 112, and the lower end of the air outlet panel 112 is connected to the interior of the cab, which is convenient for passengers in the front and rear rows in the cab to use.

Claims

1. A roof-mounted air conditioning system for a commercial vehicle, characterized in that: The invention comprises a roof-mounted air-conditioning body (1), a main condenser (2), an auxiliary condenser (3) and a compressor (4); the roof-mounted air-conditioning body (1) is arranged on the upper end of the cab roof, the vehicle cooling module is arranged on the main condenser (2), the front end of the frame is arranged on the auxiliary condenser (3), and the vehicle engine is arranged on the compressor (4); the auxiliary condenser (3) is connected to the main condenser (2) through a pipeline, the main condenser (2) and the auxiliary condenser (3) are respectively connected to the compressor (4) through a pipeline, and the compressor (4) is connected to the roof-mounted air-conditioning body (1) through a pipeline.

2. The commercial vehicle roof-mounted air conditioning system according to claim 1, characterized in that: The pipeline comprises a main and auxiliary condenser connecting pipe (5), a main condenser-evaporator connecting pipe (6), a compressor-auxiliary condenser connecting pipe (7) and a compressor-evaporator connecting pipe (8); the main condenser (2) and the auxiliary condenser (3) are connected in series via the main and auxiliary condenser connecting pipe (5); one end of the main condenser-evaporator connecting pipe (6) is connected to the main condenser (2), and the other end of the main condenser-evaporator connecting pipe (6) is connected to the overhead air conditioner body (1); one end of the compressor-auxiliary condenser connecting pipe (7) is connected to the compressor (4), and the other end of the compressor-auxiliary condenser connecting pipe (7) is connected to the auxiliary condenser (3); one end of the compressor-evaporator connecting pipe (8) is connected to the compressor (4), and the other end of the compressor-evaporator connecting pipe (8) is connected to the overhead air conditioner body (1).

3. The commercial vehicle roof-mounted air conditioning system according to claim 2, characterized in that: The main condenser-evaporator connecting pipe (6) and the compressor-evaporator connecting pipe (8) are both disconnected structures, and both ends of the disconnected structures are buckled by a pressing plate (9) and fastened by bolts.

4. The commercial vehicle roof-mounted air conditioning system according to claim 3, characterized in that: The pressure plate (9) includes an upper pressure plate (91) and a lower pressure plate (92), the upper pressure plate (91) and the lower pressure plate (92) are buckled and connected, and the upper pressure plate (91) and the lower pressure plate (92) are connected; the upper pressure plate (91) is provided with a threaded hole, and the lower pressure plate (92) is provided with the bolt, and after the upper pressure plate (91) and the lower pressure plate (92) are buckled, they are fastened by the bolt and the threaded hole.

5. The commercial vehicle roof-mounted air conditioning system according to claim 2, characterized in that: The roof-mounted air conditioner body (1) is connected to a drainage pipe (10), one end of the drainage pipe (10) is connected to a drainage port of the roof-mounted air conditioner body (1), and the other end of the drainage pipe (10) is arranged at the lower end of the cab.

6. The commercial vehicle roof-mounted air conditioning system according to claim 5, characterized in that: The invention also comprises a pipe protection groove, wherein the pipe protection groove comprises a vertical pipe protection groove (11) and a horizontal pipe protection groove (12), wherein the vertical pipe protection groove (11) is arranged at the rear of the cab, and the horizontal pipe protection groove (12) is arranged at the bottom of the cab, and the drainage pipe (10) passes through the vertical pipe protection groove (11) and is arranged at the lower end of the cab; the compressor-evaporator connecting pipe (8) and the main condenser-evaporator connecting pipe (6) pass through the horizontal pipe protection groove (12) and the vertical pipe protection groove (11) respectively to be connected to the roof-mounted air conditioner body (1).

7. The commercial vehicle roof-mounted air conditioning system according to claim 1, characterized in that: A condensing fan (31) is provided inside the auxiliary condenser (3).

8. The commercial vehicle roof-mounted air conditioning system according to claim 5, characterized in that: The roof-mounted air conditioner body (1) comprises a unit assembly (111), an air outlet panel (112) and an air return cover (113); the upper end of the air outlet panel (112) is connected to the unit assembly (111), the lower end of the air outlet panel (112) is communicated with the interior of the cab, and the upper end of the unit assembly (111) is provided with the air return cover (113); the lower end of the air outlet panel (112) is provided with an air outlet and an air conditioner switch; the unit assembly (111) is provided with the drain outlet, and the drain outlet is connected to the drain pipe (10).

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