Secondary acceleration type air conditioner air duct, cab and tractor

Abstract

The utility model relates to the field of agricultural machinery, in particular to a secondary acceleration type air-conditioning air duct, a cab and a tractor, which comprises an air duct pipe, an air inlet rib plate extending along the air inlet direction is arranged in an air inlet of the air duct pipe, and an air outlet rib plate extending along the air outlet direction is arranged in an air outlet of the air duct pipe. The air duct has the advantages that the air inlet rib plate and the air outlet rib plate are additionally arranged in the air duct pipe, the air duct in the air duct pipe is divided into sub-air ducts with small sectional areas, the air speed is increased according to the Venturi principle, speed increasing is conducted at the air inlet position and the air outlet position, a secondary speed increasing structure is formed, the air outlet acceleration effect is better, and the service life of the air duct is prolonged. The device is especially suitable for agricultural machinery or engineering machinery for outdoor operation. Meanwhile, the air inlet rib plates and the air outlet rib plates play a role in supporting the air duct pipe, and the structural strength of the air duct pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a secondary speed-increasing air-conditioning duct, a cab and a tractor. Background Art

[0002] In the tractor's air conditioning system, the air duct is used to direct the cold air from the evaporator into the cab.

[0003] Currently, the air ducts of tractors are hollow pipes with low structural strength and low wind speed at the air outlet, which results in poor cooling effect for tractors used outdoors. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to increase the flow rate of the air duct of the air conditioner.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: a secondary speed-increasing air-conditioning duct, comprising an air duct pipe, an air inlet of the air duct pipe being provided with air inlet ribs extending along the air inlet direction, and an air outlet of the air duct pipe being provided with air outlet ribs extending along the air outlet direction.

[0006] The beneficial effects of this utility model are as follows: by adding inlet and outlet ribs to the air duct, the air duct is divided into sub-ducts with smaller cross-sectional areas. The Venturi principle is used to increase the air velocity, and the air velocity is increased at both the inlet and outlet, forming a secondary speed-increasing structure. This provides a more effective air acceleration effect, making it particularly suitable for use with agricultural machinery or engineering machinery operating outdoors. The inlet and outlet ribs also provide support for the air duct, increasing its structural strength.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, there are multiple air inlet ribs, and the multiple air inlet ribs are arranged at intervals along the width direction of the air duct.

[0009] The beneficial effect of adopting the above further solution is that the air inlet of the air duct with a large width can be divided into multiple sub-air ducts with small widths by using multiple air inlet ribs.

[0010] Furthermore, there are multiple air outlet ribs, and the multiple air outlet ribs are arranged at intervals along the width direction of the air duct.

[0011] The beneficial effect of adopting the above further solution is that the air outlet of the air duct with a large width can be divided into multiple sub-air ducts with small widths by using multiple air outlet ribs.

[0012] Furthermore, the width of the end portion of the air inlet rib toward one end of the air inlet gradually increases along the air inlet direction.

[0013] The beneficial effect of adopting the above further solution is that the air inlet end of the air inlet rib is wedge-shaped, which guides the air flow to both sides of the air inlet rib and reduces the wind resistance generated by the air inlet rib.

[0014] Furthermore, the width of the end portion of the air outlet rib toward one end of the air inlet gradually increases along the air inlet direction.

[0015] The beneficial effect of adopting the above further solution is that the air inlet end of the air outlet rib is wedge-shaped, which guides the air flow to both sides of the air outlet rib and reduces the wind resistance generated by the air outlet rib.

[0016] Furthermore, the two ends of the air inlet rib in the height direction are fixedly connected to the inner wall of the air duct tube and transition through rounded corners; the two ends of the air outlet rib in the height direction are fixedly connected to the inner wall of the air duct tube and transition through rounded corners.

[0017] Furthermore, the width of the air inlet is greater than the width of the air outlet.

[0018] The beneficial effects of adopting the above further solution are: the width of the air outlet is small, and the cross-sectional area of ​​the air duct gradually decreases along the direction of air flow, thereby increasing the wind speed.

[0019] Furthermore, the number of the air inlet ribs is greater than the number of the air outlet ribs.

[0020] The utility model also provides a cab, including a cab body, an evaporator and the secondary speed-increasing air-conditioning duct, the evaporator and the air duct pipe are fixedly connected to the cab body, and the air inlet is connected and communicated with the evaporator outlet of the evaporator.

[0021] The beneficial effect is that the secondary speed-increasing air conditioning duct guides the air outlet of the evaporator into the main body of the cab, increases the wind speed, and improves the cooling efficiency.

[0022] The utility model also provides a tractor comprising the driving cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a perspective view of the utility model's secondary speed-increasing air conditioning duct.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Air duct; 2. Air inlet; 3. Air inlet rib; 4. Air outlet; 5. Air outlet rib. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1 As shown, this embodiment provides a secondary speed-increasing air-conditioning duct, including an air duct pipe 1, an air inlet 2 of the air duct pipe 1 is provided with an air inlet rib 3 extending along the air inlet direction, and an air outlet 4 of the air duct pipe 1 is provided with an air outlet rib 5 extending along the air outlet direction.

[0028] Adding inlet ribs 3 and outlet ribs 5 to the air duct 1 divides the air duct into smaller sub-ducts. This utilizes the Venturi principle to increase air velocity, accelerating both the inlet and outlet, creating a secondary acceleration structure. This results in enhanced air acceleration, making it particularly suitable for outdoor agricultural or construction machinery. The inlet ribs 3 and outlet ribs 5 also support the air duct 1, increasing its structural strength.

[0029] The number of the air inlet ribs 3 and the air outlet ribs 5 can be increased or decreased according to the area and air volume of the evaporator air outlet. The length and longitudinal cross-sectional shape of the air duct 1 can be adjusted according to the air volume and shape of the evaporator air outlet.

[0030] In one specific example, the air duct 1 is a tube with a rectangular longitudinal section. Furthermore, according to the shape of the cab, in the height direction, the two ends of the air duct 1 are staggered up and down and smoothly connected.

[0031] Optionally, the air duct 1 is as follows Figure 1 In the straight pipe shown, the air inlet direction is parallel to the air outlet direction; or the two ends of the air duct pipe 1 have an angle, for example, the air duct pipe 1 is an L-shaped pipe or a V-shaped pipe.

[0032] On the basis of any of the above solutions, there are multiple air inlet ribs 3 , and the multiple air inlet ribs 3 are arranged at intervals along the width direction of the air duct 1 .

[0033] By using a plurality of air inlet ribs 3, the air inlet 2 of the air duct tube 1 with a large width can be divided into a plurality of sub-air ducts with small widths.

[0034] On the basis of any of the above solutions, there are multiple air outlet ribs 5 , and the multiple air outlet ribs 5 are arranged at intervals along the width direction of the air duct 1 .

[0035] By using a plurality of air outlet ribs 5, the air outlet 4 of the air duct tube 1 with a large width can be divided into a plurality of sub-air ducts with small widths.

[0036] In one specific example, Figure 1 As shown, there are two air inlet ribs 3 and one air outlet rib 5.

[0037] On the basis of any of the above solutions, the width of the end portion of the air inlet rib 3 toward one end of the air inlet 2 gradually increases along the air inlet direction.

[0038] The air inlet end of the air inlet rib 3 is wedge-shaped, which guides the air flow to both sides of the air inlet rib 3 and reduces the wind resistance generated by the air inlet rib 3.

[0039] On the basis of any of the above solutions, the width of the end portion of the air outlet rib 5 toward one end of the air inlet 2 gradually increases along the air inlet direction.

[0040] The air inlet end of the air outlet rib 5 is wedge-shaped, which guides the air flow to both sides of the air outlet rib 5 and reduces the wind resistance generated by the air outlet rib 5.

[0041] Based on any of the above schemes, the two ends of the air inlet rib 3 in the height direction are fixedly connected to the inner wall of the air duct tube 1 and transition through rounded corners; the two ends of the air outlet rib 5 in the height direction are fixedly connected to the inner wall of the air duct tube 1 and transition through rounded corners.

[0042] Based on any of the above solutions, the width of the air inlet 2 is greater than the width of the air outlet 4.

[0043] The width of the air outlet 4 is small, and the cross-sectional area of ​​the air duct 1 gradually decreases along the air flow direction, thereby increasing the wind speed.

[0044] Based on any of the above solutions, the number of the air inlet ribs 3 is greater than the number of the air outlet ribs 5 .

[0045] This embodiment also provides a cab, including a cab body, an evaporator and the secondary speed-increasing air-conditioning duct, the evaporator and the air duct pipe 1 are fixedly connected to the cab body, and the air inlet 2 is connected and communicated with the evaporator outlet of the evaporator.

[0046] The secondary speed-increasing air conditioning duct guides the air out of the evaporator into the main body of the cab, increases the wind speed, and improves the cooling efficiency.

[0047] This embodiment also provides a tractor, comprising the above-mentioned cab.

[0048] In the description of the present invention, it should be noted that the terms "length", "width", "thickness", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0051] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A secondary speed-increasing air conditioning duct, characterized in that: The invention comprises an air duct (1), wherein an air inlet (2) of the air duct (1) is provided with an air inlet rib (3) extending in the air inlet direction, and an air outlet (4) of the air duct (1) is provided with an air outlet rib (5) extending in the air outlet direction; the air inlet end of the air outlet rib (5) is wedge-shaped, and the width of the end of the air outlet rib (5) toward one end of the air inlet (2) gradually increases along the air inlet direction.

2. The secondary speed-increasing air conditioning duct according to claim 1, characterized in that: There are a plurality of air inlet ribs (3), and the plurality of air inlet ribs (3) are arranged at intervals along the width direction of the air duct (1).

3. The secondary speed-increasing air conditioning duct according to claim 1, characterized in that: There are a plurality of air outlet ribs (5), and the plurality of air outlet ribs (5) are arranged at intervals along the width direction of the air duct (1).

4. The secondary speed-increasing air conditioning duct according to claim 1, characterized in that: The width of the end portion of the air inlet rib (3) toward one end of the air inlet (2) gradually increases along the air inlet direction.

5. The secondary speed-increasing air conditioning duct according to claim 1, characterized in that: The two ends of the air inlet rib (3) in the height direction are fixedly connected to the inner wall of the air duct (1) and transition through rounded corners; the two ends of the air outlet rib (5) in the height direction are fixedly connected to the inner wall of the air duct (1) and transition through rounded corners.

6. A secondary speed-increasing air conditioning duct according to any one of claims 1 to 5, characterized in that: The width of the air inlet (2) is greater than the width of the air outlet (4).

7. The secondary speed-increasing air conditioning duct according to claim 6, characterized in that: The number of the air inlet ribs (3) is greater than the number of the air outlet ribs (5).

8. A cab, characterized in that: The invention comprises a cab body, an evaporator and a secondary speed-increasing air-conditioning duct as claimed in any one of claims 1 to 7, wherein the evaporator and the air duct pipe (1) are fixedly connected to the cab body, and the air inlet (2) is connected and communicated with the evaporator outlet of the evaporator.

9. A tractor, characterized in that: Comprising the cab as claimed in claim 8.

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