Cooling and heating defrosting system

Abstract

The utility model relates to the technical field of vehicle defrosting, in particular to a cooling and heating defrosting system. The cold and warm defrosting system comprises an air duct, an evaporation fan and a heat exchange core which are arranged in the width direction of the vehicle, the air duct is connected to the air outlet side of the evaporation fan, and the heat exchange core is connected to the air inlet side of the evaporation fan. The air channel, the evaporation fan and the heat exchange core body are arranged in the width direction of a vehicle, the air channel is connected to the air outlet side of the evaporation fan, the heat exchange core body is connected to the air inlet side of the evaporation fan, air passes through the heat exchange core body under the suction effect of the evaporation fan, then enters the fan, is accelerated in the fan and then is directly blown to the air channel through the air blowing opening, and therefore the heat exchange effect is achieved. Compared with the scheme that air blown out by an evaporation fan needs to pass through the heat exchange core body and then enters the air duct in the prior art, ventilation resistance is greatly reduced, maximum utilization of the evaporation fan is achieved, the evaporation air volume can be obviously increased, defrosting efficiency is improved, and meanwhile the operation cost of the whole vehicle is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle defrosting technical field especially relates to a cold and warm defrosting system. BACKGROUND

[0002] Due to the temperature difference between the inside and outside of the car, especially in winter, it is easy to form fog on the front windshield and side window, which brings great hidden trouble to driving safety. As a kind of defrosting device, defroster is widely used in cars, which can defrost and defog the front windshield and side window to ensure driving safety. At present, the evaporative fan of the cold and warm defroster is arranged at the front side of the heat exchange core, and the evaporative fan blows the air to the heat exchange core after sucking the air. The air enters the air duct after passing through the heat exchange core, and is blown to the driver's cabin or passenger cabin from the air outlet of the air duct. Since the air blown by the evaporative fan has a large resistance when passing through the heat exchange core, the air utilization rate is low, resulting in low defrosting efficiency. SUMMARY

[0003] The utility model aims at providing a cold and warm defrosting system to solve the problem of low air utilization rate existing in the prior art defrosting device.

[0004] The utility model adopts the following technical scheme:

[0005] A cold and warm defrosting system, comprising an air duct, an evaporative fan and a heat exchange core, which are arranged along the width direction of the vehicle. The air duct is connected to the air outlet side of the evaporative fan, and the heat exchange core is connected to the air inlet side of the evaporative fan.

[0006] Further, the cold and warm defrosting system further comprises a shell, and an air inlet is arranged on the shell. The heat exchange core is arranged in the shell, and the air inlet is located above the heat exchange core.

[0007] Further, the heat exchange core is located at the lower center position in the shell, and the heat exchange core is vertically arranged. Air flow channels are respectively arranged between the left and right sides of the heat exchange core and the inner wall of the shell. A baffle is arranged above the heat exchange core and the air flow channel on the side close to the evaporative fan in the shell to block the air inlet and the air flow channel on the side. The air inlet is communicated with the air flow channel on the other side.

[0008] Further, the air suction port of the evaporative fan is directly opposite the heat exchange core.

[0009] Further, the cold and warm defrosting system further comprises a partition plate, and the evaporative fan and the heat exchange core are respectively arranged on the left and right sides of the partition plate.

[0010] Further, the heat exchange core comprises an evaporative core and a warm air core, and the evaporative core and the warm air core are arranged in sequence along the air flow direction.

[0011] Further, the evaporative core and the warm air core are arranged on the left and right sides.

[0012] Beneficial Effects: This utility model is an invention based on element modification. The air duct, evaporator fan, and heat exchange core are arranged along the vehicle width direction. The air duct is connected to the air outlet side of the evaporator fan, and the heat exchange core is connected to the air inlet side of the evaporator fan. Air, under the suction of the evaporator fan, first passes through the heat exchange core and then enters the fan. After acceleration inside the fan, it is blown directly from the air outlet to the air duct. Compared to the existing technology where the air blown out by the evaporator fan needs to pass through the heat exchange core before entering the air duct, the ventilation resistance is greatly reduced, maximizing the utilization of the evaporator fan, significantly increasing the evaporation air volume, improving defrosting efficiency, and simultaneously reducing the overall vehicle operating cost. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the heating and cooling defrosting system of this utility model;

[0014] In the diagram: 1. Air duct; 2. Evaporator fan; 3. Evaporator core; 4. Warm air core; 5. Baffle; 6. Shell; 7. Air inlet; 8. Airflow channel; 9. Baffle. Detailed Implementation

[0015] This utility model's heating and cooling defrosting system is mainly used to solve the problem of low air volume utilization in existing defrosting devices. The basic principle of this utility model is: the evaporator fan is placed behind the heat exchange core, and the air duct is connected to the air outlet side of the evaporator fan, so that the air blown out by the evaporator fan is directly blown into the air duct, maximizing the utilization of the evaporator fan and thus increasing the evaporation air volume.

[0016] The embodiments of this utility model are described in detail below.

[0017] like Figure 1 As shown, the heating and cooling defrosting system includes an air duct 1, an evaporator fan 2, and a heat exchange core, all arranged along the width of the vehicle (left and right directions in the diagram represent the vehicle width). The air duct 1 is connected to the air outlet side of the evaporator fan 2, and the heat exchange core is connected to the air inlet side of the evaporator fan 2. The system also includes a housing 6, with an air inlet 7 at the top. The heat exchange core is housed within the housing 6, with the air inlet 7 positioned above it. Air enters the housing 6 from above and exchanges heat through the heat exchange core. The heat exchange core is located at the lower center of the housing 6, arranged vertically. Airflow channels 8 are located between the heat exchange core and the inner wall of the housing 6 on both sides. The airflow channels 8 within the housing 6, including those on the heat exchange core and the side of the heat exchange core closest to the evaporator fan 2, are... Figure 1The upper portion of the left airflow passage 8 of the heat exchange core is provided with a baffle 9 to block the air inlet 7 from the left airflow passage 8, and the air inlet 7 is communicated with the right airflow passage 8. The baffle 9 is arranged to guide the air flow, so that the air enters the shell 6 from the air inlet 7, passes through the right airflow passage, the heat exchange core and the left airflow passage in sequence, thereby avoiding the air directly flowing away from the left airflow passage 8 and ensuring the heat exchange effect. The suction port of the evaporative fan 2 is directly opposite the heat exchange core, and the fan suction is fully utilized to increase the air flow rate, thereby accelerating the heat exchange. The cold and warm defrosting system comprises a vertical partition plate 5, and the evaporative fan 2 and the heat exchange core are arranged on the left and right sides of the partition plate 5 respectively. The evaporative fan 2 and the heat exchange core are separated by the partition plate 5, which is convenient for installation and separates the air inlet side from the air outlet of the air duct 1, thereby accelerating the defrosting.

[0018] The heat exchange core comprises an evaporative core 3 and a warm air core 4, and the evaporative core 3 and the warm air core 4 are arranged in sequence along the air flow direction. The two-layer core is arranged to improve the heat exchange effect and accelerate the defrosting. The evaporative core 3 and the warm air core 4 are arranged on the left and right sides, which fully utilizes the width of the vehicle body to arrange the heat exchange core, and the air flow direction through the evaporative core 3 and the warm air core 4 is consistent with the suction direction of the evaporative fan 2, thereby accelerating the heat exchange.

[0019] The working mode of the cold and warm defrosting system is as follows: under the action of the suction of the evaporative fan 2, the air enters the shell 6 from the air inlet 7, passes through the evaporative core 3 and the warm air core 4 in sequence, enters the interior of the evaporative fan 2 through the suction port, is accelerated in the evaporative fan 2 and is blown out through the blowing port, and is directly blown to the air duct 1. When the air duct 1 is a cab air duct 1, the cold and warm defrosting system can meet the heat exchange demand of the cab and realize defrosting and defogging of the front windshield.

[0020] Compared with the prior art in which the air blown by the evaporative fan needs to pass through the heat exchange core and then enter the air duct, the air in the cold and warm defrosting system of the utility model is directly blown to the air duct after being blown out from the evaporative fan, the ventilation resistance is greatly reduced, the evaporative fan is maximized, the evaporative air volume is increased by 20% under the condition of the evaporative fan, the defrosting efficiency is improved, the purchase and operation costs of the whole vehicle are reduced while meeting the defrosting demand.

[0021] Of course, the utility model is not limited to the implementation modes in the above-mentioned embodiments.

[0022] For example, in other implementation modes, the air inlet can also be arranged on the lower side, the left side or the right side of the heat exchange core, and the specific arrangement position can be adjusted according to the vehicle type and the actual installation space.

[0023] For example, in other embodiments, the heat exchange core is horizontally arranged, and air passes through the heat exchange core from top to bottom, and air flow channels are not required between the left and right sides of the heat exchange core and the inner wall of the shell.

[0024] For example, in other embodiments, the warm air core can be arranged in front of the evaporation core. The heat exchange core can also be provided with only one, such as the evaporation core or the warm air core.

[0025] For example, in other embodiments, the evaporation core and the warm air core can also be arranged vertically, and the flow direction of air can be guided by arranging a flow guide plate, so that air passes through the evaporation core and the warm air core in turn. When the evaporation core and the warm air core are horizontally arranged and arranged vertically, the flow guide plate can also not be arranged, and air passes through the evaporation core and the warm air core in turn from top to bottom under the action of the suction force of the fan.

[0026] The above is only a preferred embodiment of the present application, and is not used to limit the present application. The patent protection scope of the present application is subject to the claims, and any equivalent structural changes made by referring to the content of the specification and drawings of the present application shall also be included in the protection scope of the present application.

Claims

1. A hot-gas defrosting system, characterized by: The cold and warm defrosting system comprises an air duct, an evaporative fan and a heat exchange core, which are arranged along the vehicle width direction, the air duct is connected to the air outlet side of the evaporative fan, the heat exchange core is connected to the air inlet side of the evaporative fan, the cold and warm defrosting system further comprises a shell, the shell is provided with an air inlet, the heat exchange core is located at the lower center position in the shell, the air inlet is located at the upper side of the heat exchange core, the heat exchange core is vertically arranged, the heat exchange core is respectively provided with air flow channels between the left and right sides and the inner wall of the shell, the shell is provided with a baffle above the heat exchange core and the air flow channel on the side close to the evaporative fan to block the air inlet and the air flow channel on the side, and the air inlet is communicated with the air flow channel on the other side.

2. The hot gas defrosting system of claim 1, wherein: The air suction port of the evaporative fan is directly opposite the heat exchange core.

3. The hot gas defrosting system of claim 1, wherein: The cold and warm defrosting system further comprises a partition plate, the evaporative fan and the heat exchange core are respectively located on the left and right sides of the partition plate.

4. The hot gas defrosting system of claim 2, wherein: The cold and warm defrosting system further comprises a partition plate, the evaporative fan and the heat exchange core are respectively located on the left and right sides of the partition plate.

5. The hot gas defrosting system of claim 1, wherein: The heat exchange core comprises an evaporative core and a warm air core, and the evaporative core and the warm air core are arranged in sequence along the air inlet flow direction.

6. The hot gas defrosting system of claim 5, wherein: The evaporative core and the warm air core are arranged on the left and right sides.

7. The hot gas defrosting system of claim 2, wherein: The heat exchange core comprises an evaporative core and a warm air core, and the evaporative core and the warm air core are arranged in sequence along the air inlet flow direction.

8. The hot gas defrosting system of claim 7, wherein: The evaporative core and the warm air core are arranged on the left and right sides.

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