A truck roof air conditioner

Abstract

The present invention belongs to the technical field of truck air-conditioning manufacturing, and specifically is a truck roof-mounted air-conditioning, comprising a fan chamber, a parallel-flow evaporator chamber, and a cold air chamber which are arranged in sequence, an air inlet passage is provided on the fan chamber away from the parallel-flow evaporator chamber, a fan is provided in the fan chamber, the fan chamber is airtightly connected with the parallel-flow evaporator chamber through the air outlet passage of the fan, a parallel-flow evaporator is provided in the horizontal-flow condensation chamber, the parallel-flow evaporator chamber is connected with the cold air chamber through the air outlet of the parallel-flow evaporator, a cold air outlet connected to the outside is provided on the bottom wall of the cold air chamber, a small mechanical water filter is provided at the cold air outlet in the cold air chamber, and a drainage device is provided in the cold air chamber, thereby solving the problem that the water filter used in the current air-conditioning is large in size, and in order to obtain the air volume, the power of the fan can only be increased, resulting in no energy saving and no economy.

Description

Technical Field

[0001] The invention belongs to the technical field of truck air-conditioning manufacturing, and in particular relates to a truck roof-mounted air-conditioning. Background Art

[0002] The roof area of ​​a truck is relatively small, so the volume of the air conditioner installed is also relatively small. The principle of a general air conditioner is to use an evaporator to cool the air blown out of the fan, and then blow it out of the air conditioner; there is a very realistic problem, that is, the air blown out of the fan contains a certain amount of water vapor, and after the water vapor is cooled by the evaporator, it will form liquid water, so that there is water in the air conditioner, so the air conditioner needs to process the liquid water to prevent the liquid water from being blown out directly from the air conditioner. The traditional method is to install a series of filtering devices in the air conditioner for water and gas separation, such as using a filter made of PU sponge, etc., but this method will affect the air output of the air conditioner, so that the only way to increase the air output of the air conditioner is to increase the power of the fan, which does not save energy (electricity), and because it is an air conditioner installed on the roof of a truck, the internal volume of the air conditioner is limited, and too many gas-water separation devices cannot be installed. In this historical context, the inventor, after arduous thinking, numerous repetitive experiments, and rigorous logical deductions, designed an air conditioner that is both economical and energy-saving and can be adapted to trucks, as will be introduced below. Summary of the invention

[0003] The purpose of the present invention is to address the shortcomings of the prior art. By adopting a fan chamber, a parallel flow evaporator chamber, and a cold air chamber which are arranged in sequence and interconnected to cooperate with a small mechanical water filter and a drainage device arranged in the cold air chamber, a truck roof-mounted air conditioner is designed. The air conditioner can separate air and water from the wind blown out of the parallel flow evaporator chamber in a very small space and can ensure a sufficiently large air output. The problem that the water filter used in the current air conditioner is large in size and the power of the fan can only be increased in order to obtain air volume, resulting in a problem of being energy-inefficient and uneconomical.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A truck roof-mounted air conditioner comprises a fan chamber, a parallel flow evaporator chamber, and a cold air chamber which are arranged in sequence, wherein the shape and size of the side wall of the cold air chamber close to the parallel flow evaporator chamber is larger than the shape and size of the side wall of the parallel flow evaporator chamber close to the cold air chamber, the fan chamber is provided with an air inlet channel away from the parallel flow evaporator chamber, the fan chamber is provided with a fan, the fan chamber is airtightly connected with the parallel flow evaporator chamber through the air outlet channel of the fan, the parallel flow evaporator chamber is provided with a parallel flow evaporator, the parallel flow evaporator chamber is connected with the cold air chamber through the air outlet nozzle of the parallel flow evaporator, the bottom wall of the cold air chamber is provided with a cold air outlet connected to the outside, a small mechanical water filter is provided in the cold air chamber at the cold air outlet, and a drainage device is provided in the cold air chamber.

[0006] Preferably, the small mechanical water filter includes an air induced draft shell, the air induced draft shell is provided with an air inlet and an air outlet, the direction of the air inlet is perpendicular to the direction of the air outlet nozzle, the air outlet is tightly connected to the cold air outlet, a preset gap is provided between the air inlet and the bottom wall of the cold air chamber, a preset gap is provided between the four sides of the air induced draft shell and each side wall of the cold air chamber, the axis of the air outlet nozzle of the parallel flow evaporator is located on the side of the air induced draft shell facing away from the air inlet, and the top of the air induced draft shell is flush with the lower edge of the air outlet channel.

[0007] Preferably, the upper opening edge of the air inlet and the opening edge of the air outlet passage on the fan close to the air inlet facing the air induced shell are in the same vertical plane.

[0008] Preferably, a plurality of the fans are arranged in the fan chamber, the air outlet passage of each fan is tightly connected with the parallel flow evaporator chamber, two air induction shells are provided in the cold air chamber, and the connecting line segment between the two air induction shells is parallel to the inner bottom wall of the cold air chamber and the inner side wall of the cold air chamber close to the parallel flow evaporator chamber.

[0009] Preferably, the drainage device comprises a drainage hole, and the drainage hole is provided on the side wall of the cold air chamber, and the drainage hole is located between the air inlet and the bottom wall of the cold air chamber.

[0010] Preferably, the air inlet passage of the fan chamber is arranged on the bottom wall of the fan chamber.

[0011] Preferably, shutters are provided at both the air inlet channel and the cold air outlet.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention adopts a method of sequentially arranging and interconnecting a fan chamber, a parallel flow evaporator chamber, and a cold air chamber to cooperate with a small mechanical water filter and a drainage device arranged in the cold air chamber, and designs a truck roof-mounted air conditioner, which can separate air and water from the wind blown out of the parallel flow evaporator chamber in a very small space and can ensure a sufficiently large air output. It solves the problem that the water filter used in the current air conditioner is large in size, and in order to obtain air volume, the power of the fan can only be increased, resulting in energy-saving and uneconomical problems.

[0014] 2. The direction of the air inlet in the present invention is perpendicular to the direction of the air outlet, with the purpose of preventing liquid water from entering the induced draft shell from the air inlet and then being blown out from the air conditioner; because if the air inlet is directed toward the air outlet, the liquid water will directly enter the induced draft shell; and if the air inlet is directed away from the air outlet, the liquid water blown out from the parallel flow evaporator will hit the inner wall of the cold air chamber facing away from the parallel flow evaporator and the rebounded water will splash into the air inlet and enter the air inlet; therefore, the wind carrying liquid water will first blow toward the inner wall of the cold air chamber and then enter the air outlet, and the liquid water will fall down due to gravity and remain in the cold air chamber during this process, and then the drainage device will discharge the liquid water out of the air conditioner.

[0015] 3. The present invention can increase wind force by arranging multiple fans, but only two induced draft shells are designed, so that the maximum air volume can be obtained after separating the liquid water in the wind.

[0016] 4. The present invention adopts the simplest and most economical drainage method, namely, drainage holes, and arranges the drainage holes between the air inlet and the bottom wall of the cold air chamber, so that the drainage can be maximized without affecting the wind force of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram showing the internal structure of the present invention after removing the upper shell;

[0018] Figure 2 for Figure 1 Enlarged view of the center;

[0019] Figure 3 Figure 1 The structural diagram at the bottom;

[0020] Figure 4 It is a structural schematic diagram of the air induced casing in the present invention;

[0021] Figure 5 A partial schematic diagram showing the drainage hole;

[0022] Figure 6 A diagram showing the positional relationship between the air inlet and the air outlet of the fan;

[0023] Figure 7 This is the design method of the air inlet on the induced draft shell that can be thought of under normal circumstances (without thinking it through).

[0024] Among them, 1. fan chamber; 2. parallel flow evaporator chamber; 3. cold air chamber; 4. air inlet channel; 5. fan; 6. parallel flow evaporator; 7. air outlet; 8. cold air outlet; 9. induced draft shell; 10. air inlet; 11. air outlet; 12. drainage hole; 13. shutter. DETAILED DESCRIPTION

[0025] See also Figure 1-7 A truck roof air conditioner comprises a fan chamber 1, a parallel flow evaporator chamber 2, and a cold air chamber 3 which are arranged in sequence, the shape and size of the side wall of the cold air chamber 3 close to the parallel flow evaporator chamber 2 is larger than the shape and size of the side wall of the parallel flow evaporator chamber 2 close to the cold air chamber 3, an air inlet channel 4 is provided on the fan chamber 1 away from the parallel flow evaporator chamber 2, a fan 5 is provided in the fan chamber 1, the fan chamber 1 is tightly connected with the parallel flow evaporator chamber 2 through an air outlet channel 14 of the fan 5, a parallel flow evaporator 6 is provided in the parallel flow evaporator chamber 2, the parallel flow evaporator chamber 2 is connected with the cold air chamber 3 through an air outlet 7 of the parallel flow evaporator 6, a cold air outlet 8 connected to the outside is provided on the bottom wall of the cold air chamber 3, a small mechanical water filter is provided in the cold air chamber 3 at the cold air outlet 8, and a drainage device is provided in the cold air chamber 3.

[0026] In the present embodiment, the fan 5 blows wind into the parallel flow evaporator chamber 2, and then the wind passes through the parallel flow evaporator 6 in the parallel flow evaporator chamber 2 and then blows into the cold air chamber 3. Since part of the airflow will become liquid water under the action of the parallel flow evaporator 6 after the wind passes through the parallel flow evaporator 6, the liquid water is separated by a small mechanical water filter, and then the wind without liquid water is blown out of the cold air chamber 3, and the liquid water remains in the cold air chamber 3 and is discharged out of the air conditioner by the drainage device. Since a small mechanical water filter is used, it will not occupy too much volume of the air conditioner, and compared with the traditional method of using cloth or other water-absorbing materials, a larger air volume can be obtained, which solves the problem that the water filter used in the current air conditioner is large in volume, and in order to obtain air volume, the power of the fan can only be increased, resulting in energy-saving and uneconomical problems.

[0027] As a preferred embodiment, the small mechanical water filter includes an air induced draft shell 9, on which an air inlet 10 and an air outlet 11 are provided, the direction of the air inlet 10 is perpendicular to the direction of the air outlet nozzle 7, the air outlet 11 is tightly connected to the cold air outlet 8, a preset gap is provided between the air inlet 10 and the bottom wall of the cold air chamber 3, a preset gap is provided around the air induced draft shell 9 and each side wall of the cold air chamber 3, the axis of the air outlet nozzle 7 of the parallel flow evaporator 6 is located on the side of the air induced draft shell 9 facing away from the air inlet 10, and the top of the air induced draft shell 9 is flush with the lower edge of the air outlet channel 14. In this embodiment, the direction of the air inlet 10 is perpendicular to the direction of the air outlet 7, in order to prevent liquid water from entering the air inlet shell 9 from the air inlet 10 and then being blown out from the air conditioner; because if the air inlet 10 is directed toward the air outlet 7, the liquid water will directly enter the air inlet shell 9; and if the air inlet 10 is directed away from the air outlet 7, the liquid water blown out from the parallel flow evaporator 6 will hit the inner side of the cold air chamber 3 that is away from the parallel flow evaporator 6. The water bounces off the wall and splashes into the air inlet 10; therefore, the wind carrying liquid water will first blow toward the inner wall of the cold air chamber 3, and then enter the air outlet 11, and the liquid water will fall down due to gravity and remain in the cold air chamber 3 during this process, and the liquid water will be discharged out of the air conditioner by the drainage device, and the top of the air induced shell 9 is flush with the lower edge of the air outlet channel 14, so that the setting of the air induced shell 9 does not cover the air outlet channel 14 of the fan 4, thereby ensuring the air output.

[0028] As a preferred method, Figure 4 and Figure 7 As shown, Figure 4 For the design of the air induction housing 9 in the present invention, Figure 7 This is a design method of the induced draft shell 9 that can be thought of under normal circumstances. The upper opening edge of the air inlet 10 and the opening edge of the air outlet channel 14 on the fan 5 close to the air inlet 10 facing the induced draft shell 9 are in the same vertical plane AA. After this arrangement, the air inlet 10 is ensured to be the largest without changing other structures, thereby not affecting the air volume, and preventing the liquid water blown away by the wind on the parallel flow evaporator 6 from entering the induced draft shell 9 from the air inlet 10. Figure 6 and Figure 7 It can be seen that no matter how many fans 5 are used to generate air, as long as the upper opening edge of the air inlet 10 and the opening edge of the air outlet channel 14 on the fan 5 close to the air inlet 10 facing the air inlet shell 9 are in the same vertical plane AA, the maximum air volume in the air conditioner without bringing in liquid water can be obtained, and the present invention adopts Figure 6The design of the method makes the time for a part of the air flow to pass through the air induction shell 9 very short, thus reducing the collision between the wind and the inner wall of the air induction shell 9, because the collision will generate heat, which will further affect the wind force of the air out of the air conditioner.

[0029] As a preferred mode, a plurality of fans 5 are arranged in the fan chamber 1, and the air outlet channel 14 of each fan 5 is in sealed communication with the parallel flow evaporator chamber 2, and two induced draft shells 9 are arranged in the cold air chamber 3, and the connecting line segment between the two induced draft shells 9 is parallel to the inner bottom wall of the cold air chamber 3 and the inner side wall of the cold air chamber 3 close to the parallel flow evaporator chamber 2. In this embodiment, by arranging a plurality of fans 5, the wind force can be increased, but only two induced draft shells 9 are designed, so that the maximum air volume can be obtained after separating the liquid water in the wind.

[0030] As a preferred mode, the drainage device includes a drainage hole 12, and the drainage hole 12 is provided on the side wall of the cold air chamber 3, and the drainage hole 12 is located between the air inlet 10 and the bottom wall of the cold air chamber 3. Using the drainage hole 12 is the simplest and most economical drainage method. The drainage hole 12 is provided between the air inlet 10 and the bottom wall of the cold air chamber 3, which can achieve maximum drainage without affecting the wind force of the air conditioner.

[0031] As a preferred embodiment, the air inlet passage 4 of the fan chamber 1 is arranged on the bottom wall of the fan chamber 1, so that the present invention can be directly installed on the roof of the cab of the truck.

[0032] As a preferred embodiment, shutters 13 are provided at both the air inlet channel 4 and the cold air outlet 8, and the direction of wind force can be adjusted by providing the shutters 13.

Claims

1. A truck roof air conditioner, characterized in that: The invention comprises a fan chamber (1), a parallel flow evaporator chamber (2), and a cold air chamber (3) arranged in sequence, wherein the shape and size of the side wall of the cold air chamber (3) close to the parallel flow evaporator chamber (2) is larger than the shape and size of the side wall of the parallel flow evaporator chamber (2) close to the cold air chamber (3), the fan chamber (1) is provided with an air inlet passage (4) at a position away from the parallel flow evaporator chamber (2), the fan chamber (1) is provided with a fan (5), and the fan chamber (1) is provided with a fan (5) through which air is blown into the fan chamber (1). ) is in sealed communication with the parallel flow evaporator chamber (2); a parallel flow evaporator (6) is provided in the parallel flow evaporator chamber (2); the parallel flow evaporator chamber (2) is in communication with the cold air chamber (3) via an air outlet (7) of the parallel flow evaporator (6); a cold air outlet (8) communicating with the outside is provided on the bottom wall of the cold air chamber (3); a small mechanical water filter is provided in the cold air chamber (3) at the cold air outlet (8); and a drainage device is provided in the cold air chamber (3); The small mechanical water filter comprises an air inlet (10) and an air outlet (11) are provided on the air inlet shell (9); the direction of the air inlet (10) is perpendicular to the direction of the air outlet nozzle (7); the air outlet (11) is in closed communication with the cold air outlet (8); a gap is preset between the air inlet (10) and the bottom wall of the cold air chamber (3); a gap is preset between the four sides of the air inlet shell (9) and each side wall of the cold air chamber (3); the axis of the air outlet nozzle (7) of the parallel flow evaporator (6) is located on the side of the air inlet shell (9) facing away from the air inlet (10); and the top of the air inlet shell (9) is flush with the lower edge of the air outlet channel (14); The upper opening edge of the air inlet (10) and the opening edge of the air outlet channel (14) on the fan (5) close to the air inlet (10) facing the air inlet casing (9) are in the same vertical plane; The air inlet channel (4) of the fan chamber (1) is arranged on the bottom wall of the fan chamber (1).

2. A truck roof air conditioner according to claim 1, characterized in that: A plurality of the fans (5) are arranged in the fan chamber (1), and the air outlet channel (14) of each of the fans (5) is in sealed communication with the parallel flow evaporator chamber (2). Two air induction shells (9) are arranged in the cold air chamber (3), and the connecting line segment between the two air induction shells (9) is parallel to the inner bottom wall of the cold air chamber (3) and the inner side wall of the cold air chamber (3) close to the parallel flow evaporator chamber (2).

3. A truck roof-mounted air conditioner according to claim 1, characterized in that: The drainage device comprises a drainage hole (12), wherein the drainage hole (12) is arranged on a side wall of the cold air chamber (3), and the drainage hole (12) is located between the air inlet (10) and the bottom wall of the cold air chamber (3).

4. A truck roof-mounted air conditioner according to any one of claims 1 to 3, characterized in that: Shutters (13) are provided at the air inlet channel (4) and the cold air outlet (8).

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