Air conditioner fresh air filtering device
A filtering device and fresh air technology, which is applied in the field of air conditioning, can solve problems such as insufficient ventilation performance, affecting air intake, and large pressure drop, and achieve the effects of improving the filtering and waterproof effect, saving costs, and simple operation
Pending Publication Date: 2019-10-15
SHANGHAI COOL AIR TRANSPORT REFRIGERATION EQUIP
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Problems solved by technology
[0003] In order to achieve the filtering function, the filter device has a certain resistance. If the resistance of the filter device is too small, in bad weather, the filter device cannot effectively filter the dust and rain in the air, which will cause water accumulation inside the air conditioner, Dust accumulation will affect the normal operation of the air conditioner; and if the resistance is too large, the pressure drop will be large when the wind speed is low, which will affect the air intake and lead to insufficient ventilation performance
Moreover, the filter devices with good filtering effect are mostly made of profiles with complex shapes, and the cost is high.
Method used
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[0037] The present invention will be described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the present invention in detail, for the convenience of explanation, the accompanying drawings showing the structure of the device will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it should not be limited here. The protection scope of the present invention. It should be noted that the drawings are in simplified form and use inaccurate scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0038] Such as figure 2 , image 3 and Figure 4 As shown, the air conditioner fresh air filter device of this embodiment includes an outer casing 1 , an isolation backboard 2 , a filter screen assembly 3 and an inner deflector assembly 4 . The back of the outer shell 1 is open, and the isolation backboard ...
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The invention discloses an air conditioning fresh air filtering device which comprises an outer casing, outer guide plates, inner guide plates and a filter screen assembly, wherein the front portion of the outer casing is provided with a hollow portion for allowing external fresh air to pass through; a plurality of the outer guide plates are vertically arranged at the hollow portion at intervals;the outer guide plates extends obliquely upwards and inwards; the inner guide plates are vertically arranged in the outer casing at intervals; the inner guide plates are arranged opposite to the outerguide plates in a staggered manner; the inner guide plates extends obliquely upwards and outwards; the filter screen assembly is arranged in the outer casing; and the outer guide plates, the inner guide plates, and the filter screen assembly are arranged in order from front to back. The inner guide plates are arranged in the casing of the filtering device, the inner guide plates and the outer guide plates are arranged opposite to each other and staggered from each other, and a formed air flow path can be used for intercepting the rainwater and dust that enter the filtering device with the airflow directly through the outer guide plates at a specific angle for the second time, thereby improving the filtering and waterproofing effects of the filtering device; and the device is simple in structure and low in cost.
Description
technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a fresh air filter device of an air conditioning unit used on rail transit trains. Background technique [0002] The air-conditioning units of rail transit trains are generally installed on the top of the train, and the fresh air outlets of this type of air-conditioning are mostly located on both sides of the air-conditioning. Such as figure 1 As shown, fresh air outlets 101 are arranged symmetrically on both sides of the air conditioning unit 100 . Since the operating environment of rail transit trains is mostly outdoors and in tunnels, in order to ensure the quality of fresh air, filter devices will be installed at the fresh air outlets. When the air conditioner is running, the fan in the air conditioner creates a negative pressure environment inside the air conditioner, and the external fresh air is sucked into the interior of the air conditioner through...
Claims
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IPC IPC(8): B01D46/00F24F13/28
CPCB01D46/0005B01D46/0041F24F13/28
Inventor 杨庆峰杨小波
Owner SHANGHAI COOL AIR TRANSPORT REFRIGERATION EQUIP