Cab air-conditioning system, working machine cab, and working machine

Abstract

The utility model relates to a cab air-conditioning system, and provides a cab air-conditioning system and an operation machine in order to solve the problem of air duct arrangement of an existing operation machine cab air-conditioning system. Comprising an evaporator arranged below a driver seat, a side wall interior trimming panel fixed on a right side wall panel of a cab, and a foreground interior trimming panel arranged in front of the driver seat, the air conditioning system further comprises a main air duct arranged between the side wall interior trim panel and the wall panel, and an air distribution duct arranged in the front table interior trim panel. The rear end of the main air duct is connected with an air outlet in the right side face of the evaporator, and the front end of the main air duct is connected with the branch air ducts. And a plurality of air outlets are formed in the air distribution duct. The air duct arrangement of the cab air conditioning system does not occupy the space below the front desk, the cab air conditioning system has the advantages of being compact in structure, efficient, convenient to install and the like, and the space in a cab front desk trim panel is effectively saved.

Description

Technical Field

[0001] The utility model relates to an air conditioning system, and more specifically to a cab air conditioning system, a working machine cab and a working machine. Background Art

[0002] The relatively small internal space of telescopic forklifts and various construction machinery such as excavators makes it extremely difficult to arrange the air conditioning ducts. The arrangement of the air conditioning ducts often needs to be determined according to the location of the evaporator. The evaporator of the air conditioning system in the cab of the operating machinery is often arranged under the seat. Since the evaporator is arranged under the seat, the existing operating machinery often extends the air conditioning supply duct from the evaporator along the floor forward to the bottom of the front interior panel, and then extends upward in the front interior panel to multiple air outlets on the front interior panel. In this arrangement, the duct is located above the floor of the cab, so that the position where the air supply duct is arranged on the floor bulges upward. If the duct is arranged on the lower side of the cab floor, the entire structure will be complicated and inconvenient for later maintenance and repair. Utility Model Content

[0003] The technical problem to be solved by the utility model is the problem of air duct arrangement of the existing operating machine cab air conditioning system, and provides a cab air conditioning system, an operating machine cab and an operating machine.

[0004] The utility model provides a technical solution to achieve its purpose: a cab air-conditioning system, comprising an evaporator arranged below a driver's seat, a side wall interior panel fixed on the right side wall of the cab, and a front desk interior panel arranged in front of the driver's seat; the air-conditioning system also comprises: a main air duct arranged on the inner side of the side wall interior panel, and a branch air duct arranged on the lower side of the front desk interior panel; the rear end of the main air duct is connected to the air outlet on the right side surface of the evaporator, and the front end is connected to the branch air duct; a plurality of air outlets are arranged on the branch air duct.

[0005] In the cab air conditioning system of the utility model, the main air duct is in a tubular shape; the branch air duct is in a cavity shape, and the right end of the branch air duct is provided with an air inlet plug interface plugged into the front end of the main air duct.

[0006] In the cab air-conditioning system of the utility model, a right-side air duct plug-in interface is provided at the right end of the air distribution duct; the air-conditioning system also includes an F-shaped right-side defrost air duct, a horizontal tube portion running left and right in the middle of the right-side defrost air duct is plugged into the right-side air duct plug-in interface, and right-side defrost air outlets are provided on the front horizontal tube portion running left and right and the longitudinal tube portion running front and back.

[0007] In the cab air-conditioning system of the present invention, a left-side air duct plug-in interface is arranged on the front side of the left end of the air distribution duct; the air-conditioning system also includes an L-shaped left-side defrost air duct, the rear end of the longitudinal tube portion of the left-side defrost air duct running front to back is plugged into the left-side air duct plug-in interface, and a left-side defrost air outlet is arranged on the transverse tube portion of the front part of the left-side defrost air duct running left to right.

[0008] In the cab air conditioning system of the utility model, the main air duct, the branch air duct, the right defrost air duct and the left defrost air duct are all provided with mounting ear plates for fixed installation.

[0009] In the cab air conditioning system of the utility model, the air outlet includes a plurality of main air outlets which are arranged on the air distribution duct and face rearward.

[0010] In the cab air conditioning system of the utility model, the main air outlets are arranged symmetrically about the cab midplane, which is a vertical plane passing through the SIP point of the driver's seat.

[0011] In the cab air conditioning system of the utility model, the main air outlet comprises an upper air outlet facing the driver's seat and a lower air outlet facing obliquely below the driver's seat.

[0012] The utility model provides a technical solution for achieving the purpose: a working machine cab, which is provided with the above-mentioned cab air conditioning system, and a driving door for entering and exiting the cab is arranged on the left side.

[0013] The utility model provides a technical solution for achieving the purpose: an operating machine having the aforementioned cab air conditioning system, or having the aforementioned operating machine cab, and the operating machine may be a telescopic arm forklift, an excavator, etc.

[0014] Compared with the prior art, in the utility model, the evaporator is arranged under the driver's seat, and the main air duct is arranged on the inner side of the interior panel on the side wall of the cab, and the air conditioning cold air is directed to the front interior panel and blown out. This air duct arrangement does not occupy the space under the front desk, has the characteristics of compact structure, high efficiency, easy installation, etc., and effectively saves the space inside the front interior panel of the cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a cab of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the cab air conditioning system of the utility model.

[0017] Figure 3 The utility model is a schematic diagram of the overall decomposition of the air duct of the cab air conditioning system.

[0018] Figure 4The utility model is a structural schematic diagram of the main air duct of the cab air conditioning system.

[0019] Figure 5 The utility model is a structural schematic diagram of an air distribution duct of a cab air conditioning system.

[0020] Figure 6 The utility model is a structural schematic diagram of the right side defrosting air duct of the cab air conditioning system.

[0021] Figure 7 The utility model is a structural schematic diagram of the left defrosting air duct of the cab air conditioning system.

[0022] Parts names and serial numbers in the figure:

[0023] Evaporator 11 , side wall interior panel 12 , front desk interior panel 13 , driver seat 14 .

[0024] Main air duct 20 , air inlet 21 , and mounting ear plate 22 .

[0025] The air distribution duct 30 , the air inlet plug interface 31 , the right air duct plug interface 32 , the left air duct plug interface 33 , the main air outlet 34 , the upper air blowing outlet 341 , and the lower air blowing outlet 342 .

[0026] The right defrost air duct 40 , the middle transverse pipe portion 41 , the right front transverse pipe portion 42 , the right longitudinal pipe portion 43 , and the right defrost air outlet 44 .

[0027] The left defrost air duct 50 , the left longitudinal pipe portion 51 , the left front transverse pipe portion 52 , and the left defrost air outlet 53 .

[0028] Air register 61 and air guide grille 62 .

[0029] Cab 100. DETAILED DESCRIPTION

[0030] The specific implementation scheme is described below with reference to the accompanying drawings.

[0031] like Figure 2 As shown, the cab air conditioning system in this embodiment includes an evaporator 11 arranged below a driver's seat 14, a side wall interior panel 12 fixed to the right side wall panel of the cab, and a front desk interior panel 13 arranged in front of the driver's seat.

[0032] like Figure 3 As shown, the air duct of the air conditioning system also includes: a main air duct 20 arranged on the inner side of the side wall interior panel 12, and a branch air duct 30 arranged on the lower side of the front interior panel 13; the rear end of the main air duct 20 is connected to the air outlet on the right side of the evaporator 11, and the front end is connected to the branch air duct 30; a plurality of air outlets are arranged on the branch air duct 30. The main air duct 20 is hidden between the side wall interior panel 12 and the outer side wall panel of the cab.

[0033] like Figure 4 As shown, the main air duct 20 is tubular, and the air inlet at the rear end thereof faces the side of the evaporator 11 and is connected to the air outlet on the side of the evaporator 11 .

[0034] like Figure 5 As shown, the air distribution duct 30 is cavity-shaped, and its right end has an air inlet plug port 31 plugged into the front end of the main air duct 20. A right air duct plug port 32 is provided at the right end of the air distribution duct 30, and a left air duct plug port 33 is provided at the front side of the left end of the air distribution duct 30.

[0035] like Figure 6 As shown, the right defrost air duct 40 is F-shaped, and has a right front transverse pipe portion 42 located in the front and extending left and right, a middle transverse pipe portion 41 located in the middle and extending left and right, and a right longitudinal pipe portion 43 extending front and back and connected to the middle transverse pipe portion 41 and the right front transverse pipe portion 42. The middle transverse pipe portion 41 is plugged into the right air duct plug-in port 32, and the right front transverse pipe portion 42 and the right longitudinal pipe portion 43 are both provided with a right defrost air outlet 44.

[0036] like Figure 7 As shown, the left defrost air duct 50 is L-shaped, and has a left front transverse pipe portion 52 located at the front and extending left and right, and a left longitudinal pipe portion 51 connected to the left front transverse pipe portion 52 and extending front and back. The rear end of the left longitudinal pipe portion 51 is plugged into the left air duct plug-in port 33, and the left front transverse pipe portion 52 is provided with a left defrost air outlet 53.

[0037] Air guide grilles 62 are installed in the right defrost air outlet 44 and the left defrost air outlet 53, which guide the air flows blown out of the right defrost air outlet 44 and the left defrost air outlet 53 to specific areas respectively, so as to achieve the purpose of defrosting the corresponding glass in the cab.

[0038] like Figure 3 As shown, the main air duct 20, the branch air duct 30, the right defrost air duct 40, and the left defrost air duct 51 are all provided with mounting ear plates 22 for fixed installation, so as to fix the air ducts and pipes.

[0039] The air outlets on the air distribution duct 30 include a main air outlet 34 disposed on the air distribution duct 30 and facing rearward. The main air outlet 34 is located directly in front of the driver's seat 14 and is arranged symmetrically about the middle plane of the cab. The main air outlet 34 includes an upper air outlet 341 facing the driver's seat 14 and a lower air outlet 342 obliquely below the driver's seat 14.

[0040] An air regulator 61 is installed in the main air outlet to adjust the direction and air volume of the blown air flow.

[0041] This embodiment also discloses a working machine cab, such as Figure 1 As shown, the cab 100 has the aforementioned cab air conditioning system, and the driving entrance and exit of the cab 100 is arranged on the left side of the driver's seat.

[0042] The present embodiment further discloses a working machine having the aforementioned cab air conditioning system, or having the aforementioned working machine cab 100, and the working machine may be a telescopic arm forklift.

[0043] In this embodiment, the evaporator 11 is arranged under the driver's seat 14, and the main air duct 20 is arranged on the inner side of the side wall interior panel 12 on the side wall of the cab, and the air conditioning cold air is directed to the front interior panel and blown out. This air duct arrangement does not occupy the space under the front desk, has the characteristics of compact structure, high efficiency, easy installation, etc., and effectively saves the space inside the front interior panel of the cab.

Claims

1. A cab air conditioning system, comprising an evaporator arranged below a driver's seat, a side wall interior panel fixed to the right side wall of the cab, and a front desk interior panel arranged in front of the driver's seat, characterized in that: The air conditioning system also includes: a main air duct arranged on the inner side of the side wall interior panel, and a branch air duct arranged on the lower side of the front desk interior panel; the rear end of the main air duct is connected to the air outlet on the right side surface of the evaporator, and the front end is connected to the branch air duct; and a plurality of air outlets are provided on the branch air duct.

2. The cab air conditioning system according to claim 1, characterized in that: The main air duct is in a tubular shape; the branch air duct is in a cavity shape, and the right end of the branch air duct is provided with an air inlet plug interface plugged into the front end of the main air duct.

3. The cab air conditioning system according to claim 2, characterized in that: A right side air duct plug interface is arranged at the right end of the air distribution duct; the air conditioning system also includes an F-shaped right side defrost air duct, a horizontal tube portion running left and right in the middle of the right side defrost air duct is plugged into the right side air duct plug interface, and right side defrost air outlets are arranged on the front horizontal tube portion running left and right and the longitudinal tube portion running front and back.

4. The cab air conditioning system according to claim 3, characterized in that: A left-side air duct plug-in interface is arranged at the front side of the left end of the air distribution duct; the air-conditioning system also includes an L-shaped left-side defrost air duct, the rear end of the longitudinal tube portion of the left-side defrost air duct running front to back is plugged into the left-side air duct plug-in interface, and a left-side defrost air outlet is arranged on the front left-right horizontal tube portion of the left-side defrost air duct.

5. The cab air conditioning system according to claim 4, characterized in that: The main air duct, the branch air duct, the right defrost air duct and the left defrost air duct are all provided with mounting ear plates for fixed installation.

6. The cab air conditioning system according to any one of claims 1 to 5, characterized in that: The air outlet includes a plurality of main air outlets which are arranged on the air distribution duct and face rearward.

7. The cab air conditioning system according to claim 6, characterized in that: The main air outlets are arranged symmetrically about the middle plane of the cab.

8. The cab air conditioning system according to claim 7, characterized in that: The main air outlet comprises an upper air outlet facing the driver's seat and a lower air outlet facing obliquely downward below the driver's seat.

9. A cab of an operating machine, characterized in that: It has a cab air conditioning system as claimed in any one of claims 1 to 8, and a driver's door for entering and exiting the cab is arranged on the left side.

10. A working machine, characterized in that: A cab air conditioning system according to any one of claims 1 to 8, or a cab for a working machine according to claim 9.

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