Air conditioner with controllable air volume and double-decker bus using the air conditioner

Abstract

The present invention relates to an air conditioner with controllable air volume, comprising a shell, a first accommodating space for installing a centrifugal fan is arranged inside the shell, a second accommodating space and a third accommodating space are also arranged inside the shell, a first evaporator is arranged between the second accommodating space and the first accommodating space, and a second evaporator is arranged between the first accommodating space and the third accommodating space. A lower left air outlet and a lower right air outlet are arranged on the left and right sides of the shell respectively, the lower left air outlet is connected to the second accommodating space, the lower right air outlet is connected to the third accommodating space, a first baffle is arranged in the second accommodating space, and a second baffle is arranged in the third accommodating space. An upper left air outlet and an upper right air outlet are also arranged on the shell, the upper left air outlet is connected to the second accommodating space, and the upper right air outlet is connected to the third accommodating space.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioners, and in particular to an air volume controllable air conditioner and a double-decker bus using the air conditioner. Background Art

[0002] Double-decker buses can alleviate the problem of social traffic congestion to a certain extent. The air conditioner is placed at the rear of the double-decker bus body. The air volume delivered by the air conditioner to the boarding and alighting space of the double-decker bus is different, resulting in a certain difference in the comfort of the upper and lower passenger areas of the double-decker bus. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present invention provides an air conditioner with controllable air volume. A double-decker bus using the air conditioner can improve the uniformity of air supply volume in the upper and lower body spaces, thereby solving the problem of comfort differences in various passenger areas.

[0004] The present invention provides an air conditioner with controllable air volume, comprising a shell, wherein a first accommodating space is arranged inside the shell for installing a centrifugal fan, a second accommodating space and a third accommodating space are also arranged inside the shell, the second accommodating space and the third accommodating space are respectively arranged on both sides of the first accommodating space, a first evaporator is arranged between the second accommodating space and the first accommodating space, and a second evaporator is arranged between the first accommodating space and the third accommodating space.

[0005] The front end surface of the shell is provided with a penetrating return air port, and the return air port is communicated with the first accommodating space.

[0006] The left and right sides of the shell are respectively provided with a lower left air outlet and a lower right air outlet, wherein the lower left air outlet is connected to the second accommodation space, and the lower right air outlet is connected to the third accommodation space. A first baffle is provided in the second accommodation space, and a second baffle is provided in the third accommodation space. The first baffle forms an angle with the left side of the shell, and the projection of the first baffle on the inner wall of the left side covers the lower left air outlet or covers part of the lower left air outlet, and the second baffle forms an angle with the right side of the shell, and the projection of the second baffle on the inner wall of the right side covers the lower right air outlet or covers part of the lower left air outlet.

[0007] In one embodiment, the first shielding plate is rotatably connected to the inner wall of the left side of the shell, and the second shielding plate is rotatably connected to the inner wall of the right side of the shell.

[0008] In one embodiment, the first tube passes through the left side of the shell to form a lower left air outlet, and the second tube passes through the right side of the shell to form a lower right air outlet. The first baffle is rotatably connected to the tube opening of the first tube located in the second accommodation space, and the second baffle is rotatably connected to the tube opening of the second tube located in the third accommodation space.

[0009] The shell is also provided with an upper left air outlet and an upper right air outlet, both of which penetrate the top surface of the shell, the upper left air outlet is connected to the second accommodating space, and the upper right air outlet is connected to the third accommodating space.

[0010] The present invention provides an air conditioner with controllable air volume. The negative pressure generated by a centrifugal fan arranged inside a shell sucks external air into a first accommodating space through a return air port. The air sucked into the first accommodating space has two flow paths: 1. Passing through a first evaporator to enter a second accommodating space, and in the second accommodating space, part of the air leaves the shell through an upper left air outlet, and part of the air leaves the shell through a lower left air outlet; 2. Passing through a second evaporator to enter a third accommodating space, and in the third accommodating space, part of the air leaves the shell through an upper right air outlet, and part of the air leaves the shell through a lower right air outlet.

[0011] In one embodiment, in order to make the flow rates of the gas flowing along the two flow paths substantially the same, two centrifugal fans are arranged in the first accommodation space, and a partition is arranged between the two centrifugal fans.

[0012] The first evaporator and the second evaporator are both bent structures. The first evaporator bulges toward the left side, and the second evaporator bulges toward the right side, thereby improving the uniformity and distribution uniformity of the gas in the first storage space flowing to the second storage space and the third storage space, and at the same time increasing the contact area between the flowing gas and the first evaporator and the second evaporator.

[0013] In one embodiment, the first evaporator and the second evaporator are both U-shaped structures.

[0014] In one embodiment, the first evaporator and the second evaporator are both L-shaped structures.

[0015] In the second storage space, by adding a first baffle at the lower left air outlet, the air volume of the lower left air outlet and the upper left air outlet can be the same, and in the third storage space, by adding a second baffle at the lower right air outlet, the air volume of the lower right air outlet and the upper right air outlet can be the same. The angle between the first baffle and the left side of the shell and the angle between the second baffle and the right side of the shell are adjustable.

[0016] In one embodiment, in order to further adjust the air volume of the lower left air outlet and the lower right air outlet, through holes are set on the first baffle and the second baffle, and the mathematical relationship between the through holes and the air volume is: the number of through holes is set to n, the area of ​​each through hole is set to a, the total area of ​​the first baffle / the second baffle is set to A, the unbaffled air volume (that is, the air volume of the lower left air outlet / the lower right air outlet when the first baffle / the second baffle does not exist) is Q, and the air volume is set to q, then the air volume q=n*aQ / A, where n*a / A is the porosity, and the air volume of the lower left air outlet / the lower right air outlet can be controlled by controlling the porosity on the first baffle / the second baffle.

[0017] Compared with the prior art, the air conditioner with controllable air volume provided by the present invention has the following technical effects:

[0018] 1. By adding a first baffle at the lower left air outlet, the air volume of the lower left air outlet and the upper left air outlet can be made the same. By adding a second baffle at the lower right air outlet in the third accommodation space, the air volume of the lower right air outlet and the upper right air outlet can be made the same.

[0019] 2. By adjusting the angle between the first baffle and the left side of the shell and the angle between the second baffle and the right side of the shell, the air volume of the lower left air outlet and the lower right air outlet can be further adjusted;

[0020] 3. By setting a through hole on the first baffle / the second baffle, the air volume of the lower left air outlet and the lower right air outlet can be further adjusted.

[0021] The present invention also provides a double-decker bus, which is provided with the above-mentioned air conditioner with controllable air volume. The double-decker bus is divided into two layers, and the air conditioner with controllable air volume is placed at the rear of the vehicle body. The upper layer of the double-decker bus is connected with the upper left air outlet and the upper right air outlet, and the lower layer of the double-decker bus is connected with the lower left air outlet and the lower right air outlet. The negative pressure generated by the centrifugal fan in the air conditioner sucks the air in the vehicle into the first accommodation space through the return air port, and then after condensation and evaporation by the first evaporator / second evaporator, a part of it enters the lower layer of the vehicle through the lower left air outlet / lower right air outlet, and the other part enters the upper layer of the vehicle through the upper left air outlet / upper right air outlet. In this process, the first baffle / second baffle can control the proportion of the air volume output to the lower layer of the vehicle and the upper layer of the vehicle, thereby improving the comfort of the whole vehicle.

[0022] In one embodiment, a double-decker bus is provided with the above-mentioned air conditioner with controllable air volume, which outputs the same air volume to the lower and upper spaces of the vehicle, thereby improving the comfort of the entire vehicle and avoiding the inability to achieve effective utilization of the air conditioner due to the different comfort levels of the lower and upper spaces of the double-decker bus. The air conditioner with controllable air volume has a simple structure and low cost.

[0023] The following describes the invention in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an air conditioner with controllable air volume provided in Example 1.

[0025] Figure 2 A top view of an air conditioner with controllable air volume provided in Example 1.

[0026] Figure 3 A front view of an air conditioner with controllable air volume provided in Example 1.

[0027] Figure 4A top view of an air conditioner with controllable air volume provided in Example 2.

[0028] Figure 5 A top view of an air conditioner with controllable air volume provided in Example 3.

[0029] The figure includes: 1. shell; 11. partition; 12. return air outlet; 2. centrifugal fan; 31. first evaporator; 32. second evaporator; 41. first baffle; 42. second baffle; 51. lower left air outlet; 52. lower right air outlet; 61. upper left air outlet; 62. upper right air outlet; 7. through hole; 81. first accommodating space; 82. second accommodating space; 83. third accommodating space. DETAILED DESCRIPTION

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] Example 1

[0035] like Figure 1-3 As shown, this embodiment provides an air conditioner with controllable air volume, including a housing 1, a first accommodating space 81 is provided inside the housing 1 for installing a centrifugal fan 2, a partition 11 is provided in the middle of the housing 1, the partition 11 is located in the first accommodating space 81, there are two centrifugal fans 2, and the two centrifugal fans 2 are symmetrically arranged along the partition 11, a second accommodating space 82 and a third accommodating space 83 are also provided inside the housing 1, the second accommodating space 82 and the third accommodating space 83 are respectively arranged on both sides of the first accommodating space 81, a first evaporator 31 is provided between the second accommodating space 82 and the first accommodating space 81, and a second evaporator 32 is provided between the first accommodating space 81 and the third accommodating space 83. The first evaporator 31 and the second evaporator 32 are symmetrically arranged along the partition 11, and both the first evaporator 31 and the second evaporator 32 are U-shaped structures.

[0036] The front end face of the shell 1 is provided with a through return air port 12, and the return air port 12 is connected to the first accommodating space 81. The left and right side faces of the shell 1 are respectively provided with a lower left air outlet 51 and a lower right air outlet 52, and the lower left air outlet 51 and the lower right air outlet 52 are symmetrically arranged along the partition 11. Among them, the lower left air outlet 51 is connected to the second accommodating space 82, and the lower right air outlet 52 is connected to the third accommodating space 83. A first baffle 41 is provided in the second accommodating space 82, and a second baffle 42 is provided in the third accommodating space 83, and the first baffle 41 and the second baffle 42 are symmetrically arranged along the partition 11. The first baffle 41 is rotatably connected to the inner wall of the left side face of the shell 1, and the second baffle 42 is rotatably connected to the inner wall of the right side face of the shell 1. The first baffle 41 forms an angle with the left side surface of the shell 1, and the projection of the first baffle 41 on the inner wall of the left side surface covers the lower left air outlet 51 or covers part of the lower left air outlet 51. The second baffle 42 forms an angle with the right side surface of the shell 1, and the projection of the second baffle 42 on the inner wall of the right side surface covers the lower right air outlet 52 or covers part of the lower left air outlet 52.

[0037] The housing 1 is also provided with an upper left air outlet 61 and an upper right air outlet 62, both of which penetrate the top surface of the housing 1, are respectively arranged at the two ends of the top surface of the housing 1, and are symmetrically arranged along the partition 11. The upper left air outlet 61 is connected to the second accommodation space 82, and the upper right air outlet 62 is connected to the third accommodation space 83.

[0038] This embodiment provides an air conditioner with controllable air volume. The negative pressure generated by the centrifugal fan 2 disposed inside the housing 1 sucks the external air into the first accommodating space 81 through the return air port 12. Part of the air sucked into the first accommodating space 81 passes through the first evaporator 31 and enters the second accommodating space 82. Part of the air sucked into the first accommodating space 81 passes through the second evaporator 32 and enters the third accommodating space 83. Part of the air in the second accommodating space 82 leaves the housing 1 through the upper left air outlet 61, and part of the air leaves the housing 1 through the lower left air outlet 51. Part of the air in the third accommodating space 83 leaves the housing 1 through the upper right air outlet 62, and part of the air leaves the housing 1 through the lower right air outlet 52.

[0039] This embodiment provides an air conditioner with controllable air volume. Assuming that the angle formed by the first baffle 41 and the left side surface of the housing 1 is α, the data obtained through simulation are as follows:

[0040] 1. When α=30° (corresponding to Figure 3 α3 in the figure), the air volume of the upper left air outlet 61 is 1693.4244 m3 / h, the air volume of the lower left air outlet 51 is 1690.7989 m3 / h, and the total air volume from the first accommodating space 81 to the second accommodating space 82 is 3384.8372 m3 / h;

[0041] 2. When α=15° (corresponding to Figure 3 α1 in the figure), the air volume of the upper left air outlet 61 is 1847.9628 m3 / h, the air volume of the lower left air outlet 51 is 1252.7387 m3 / h, and the total air volume from the first accommodating space 81 to the second accommodating space 82 is 3100.5205 m3 / h;

[0042] 3. When α=25° (corresponding to Figure 3 α2 marked in the middle), the air volume of the upper left air outlet 61 is 1668.3121 m3 / h, the air volume of the lower left air outlet 51 is 1515.2508 m3 / h, and the total air volume from the first accommodating space 81 to the second accommodating space 82 is 3184.2109 m3 / h;

[0043] 4. When α=35° (corresponding to Figure 3α4 marked in the middle), the air volume of the upper left air outlet 61 is 1533.672 m3 / h, the air volume of the lower left air outlet 51 is 1697.0663 m3 / h, and the total air volume from the first accommodating space 81 to the second accommodating space 82 is 3231.3883 m3 / h;

[0044] 5. When α=45° (corresponding to Figure 3 α5 marked in the middle), the air volume of the upper left air outlet 61 is 1601.1926 m3 / h, the air volume of the lower left air outlet 51 is 1735.7077 m3 / h, and the total air volume from the first accommodating space 81 to the second accommodating space 82 is 3337.6198 m3 / h;

[0045] 6. When there is no first baffle 41, the air volume of the upper left air outlet 61 is 1964.4986 m3 / h, the air volume of the lower left air outlet 51 is 1735.7077 m3 / h, and the total air volume from the first accommodating space 81 to the second accommodating space 82 is 3400.9393 m3 / h.

[0046] Since the structures inside the shell 1 are symmetrically arranged along the partition 11 , the simulation data in the third accommodating space 83 is consistent with the simulation data in the second accommodating space 82 .

[0047] From the above, it can be seen that when the angle formed by the first baffle 41 and the left side of the housing 1 is 30°, the air volume of the upper left air outlet 61 and the lower left air outlet 51 is substantially the same, and the total air volume is the same as when there is no first baffle 41, and the total air volume is basically not affected by adding the first baffle 41. According to simulation data, the angle formed by the first baffle 41 and the left side of the housing 1 is most suitable between 28° and 35°. Preferably, the angle formed by the first baffle 41 and the left side of the housing 1 is 30°.

[0048] According to the simulation data, the angle formed by the first baffle 41 and the left side of the housing 1 is 30° as the dividing line:

[0049] 1. When α=15°, the air volume of the upper left air outlet 61 is about 600 m3 / h more than that of the lower left air outlet 51;

[0050] 2. When α=25°, the air volume of the upper left air outlet 61 is about 150 m3 / h more than that of the lower left air outlet 51;

[0051] 3. When α=35°, the air volume of the upper left air outlet 61 is about 150 m3 / h less than that of the lower left air outlet 51;

[0052] 4. When α=45°, the air volume of the upper left air outlet 61 is about 130 m3 / h less than that of the lower left air outlet 51;

[0053] In summary, with the angle of 30° formed by the first baffle 41 and the left side surface of the shell 1 as the dividing line, when α=15°-30°, the air outlet of the upper left air outlet 61 is always higher than the air outlet of the lower left air outlet 51, and the air volume changes in a linear relationship and gradually decreases; when α=30°-45°, the air outlet of the lower left air outlet 51 is always higher than the air outlet of the upper left air outlet 61 by about 150 m3 / h. Therefore, at this time, the air outlet of the lower left air outlet 51 can be controlled to be consistent with the air outlet of the upper left air outlet 61 by setting a through hole on the first baffle 41.

[0054] The present embodiment provides an air conditioner with controllable air volume, wherein the angle formed between the first baffle 41 and the left side surface of the shell 1 is 45°, the angle formed between the second baffle 42 and the right side surface of the shell 1 is 45°, and a through hole 7 is provided on both the first baffle 41 and the second baffle 42.

[0055] Example 2

[0056] like Figure 4 As shown, the air conditioner with controllable air volume provided in this embodiment has the same structure as that of the air conditioner with controllable air volume in Embodiment 1 except that the first evaporator 31 and the second evaporator 32 are both L-shaped structures.

[0057] The first evaporator 31 and the second evaporator 32 are both L-shaped structures and are placed vertically at the bottom of the shell 1 to control the wind speed direction and air volume distribution and improve the uniformity at the air outlet.

[0058] Example 3

[0059] like Figure 5 As shown, the present embodiment provides an air conditioner with controllable air volume, wherein the angle formed between the first baffle 41 and the left side surface of the shell 1 is 30°, the angle formed between the second baffle 42 and the right side surface of the shell 1 is 30°, and neither the first baffle 41 nor the second baffle 42 is provided with a through hole 7. The remaining structure of the air conditioner with controllable air volume provided in the present embodiment is consistent with the structure of the air conditioner with controllable air volume in Example 1.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An air conditioner with controllable air volume, comprising a housing, characterized in that: A first accommodating space is provided inside the shell for installing a centrifugal fan, and a through return air port is provided on the front end surface of the shell, and the return air port is communicated with the first accommodating space; a second accommodating space and a third accommodating space are also provided inside the shell, and the second accommodating space and the third accommodating space are respectively provided on both sides of the first accommodating space, a first evaporator is provided between the second accommodating space and the first accommodating space, and a second evaporator is provided between the first accommodating space and the third accommodating space; The left and right sides of the shell are respectively provided with a left lower air outlet and a right lower air outlet, the left lower air outlet is connected to the second accommodating space, the right lower air outlet is connected to the third accommodating space, a first baffle is provided in the second accommodating space, and a second baffle is provided in the third accommodating space; The first shielding plate forms an angle with the left side surface of the housing, and the projection of the first shielding plate on the inner wall of the left side surface covers the lower left air outlet or covers part of the lower left air outlet; The second shielding plate forms an angle with the right side surface of the housing, and the projection of the second shielding plate on the inner wall of the right side surface covers the lower right air outlet or covers part of the lower left air outlet; The housing is further provided with an upper left air outlet and an upper right air outlet, the upper left air outlet is connected to the second accommodation space, and the upper right air outlet is connected to the third accommodation space; The first baffle is rotatably connected to the inner wall of the left side surface of the shell, and the second baffle is rotatably connected to the inner wall of the right side surface of the shell; the angle formed by the first baffle and the left side surface of the shell is 30°-45°, and the angle formed by the second baffle and the right side surface of the shell is 30°-45°, and both the first baffle and the second baffle are provided with through holes.

2. The air conditioner according to claim 1, characterized in that: The upper left air outlet and the upper right air outlet both penetrate the top end surface of the shell and are arranged at two ends of the top end surface of the shell.

3. The air conditioner according to claim 1, characterized in that: A partition is provided in the middle of the shell, and the partition is located in the first accommodating space. There are two centrifugal fans, and the two centrifugal fans are symmetrically arranged along the partition.

4. The air conditioner according to claim 3, characterized in that: The first evaporator and the second evaporator are both bent structures. The first evaporator protrudes toward the left side surface, and the second evaporator protrudes toward the right side surface. The first evaporator and the second evaporator are symmetrically arranged along the partition.

5. The air conditioner according to claim 4, characterized in that: The first evaporator and the second evaporator are both U-shaped structures or L-shaped structures.

6. A double-decker bus, characterized in that: The double-decker bus is provided with the air conditioner according to any one of claims 1-5.

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