Liquid water filtering device for condensing evaporator of automobile air conditioner

Abstract

The invention relates to a liquid water filtering device for a condensation evaporator of an automobile air conditioner, which belongs to the technical field of automobile air conditioners, is mounted on a heat dissipation belt of an evaporator of the air conditioner, and comprises a shell, and a water absorption part and a water guide part which are arranged in the shell, the water absorption component comprises a plurality of water absorption grid bars arranged at intervals, and one ends of the water absorption grid bars abut against the air conditioner evaporator heat dissipation belt. The water guide part comprises a plurality of water guide grid bars which are arranged at intervals, and one ends of the water guide grid bars abut against the corresponding water absorption grid bars; the water absorption rate of the water guide grid bars is larger than that of the water absorption grid bars. According to the device, condensate water and water mist droplets of the automobile air conditioner evaporator are effectively intercepted, dry and comfortable air can be provided for an automobile cabin, and the heat load of a downstream heating assembly of a new energy automobile is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile air conditioners, and in particular to a liquid water filtering device for an automobile air conditioner condenser evaporator. Background Art

[0002] The automobile air conditioning system is one of the core key systems of the automobile. It can timely adjust the key parameters such as temperature, humidity, cleanliness, etc. of the air delivered to the cabin to ensure the riding comfort of passengers. So far, the installation rate of air conditioning in domestic cars has achieved full coverage.

[0003] In the automobile air conditioning system, the evaporator transfers the heat of the airflow through the air conditioning duct by using the phase change of the refrigerant from liquid to gas in its pipeline, thereby reducing the airflow temperature and realizing the cooling and dehumidification function of the air conditioning system. When the humidity in the air intake outside the car is high, a large amount of condensed water will be generated on the surface of the evaporator heat dissipation pipe. When a certain amount of air passes through, the above-mentioned large amount of condensed water and small water mist droplets will be brought into the downstream air duct and directly introduced into the cabin through the air outlet of the air conditioner, which deviates from the original intention of dehumidification and seriously affects the consumer experience; at the same time, for new energy vehicles, a heating component will be installed at the rear end of the evaporator, which will cooperate with the evaporator to provide dry, warm and comfortable airflow; the introduction of the above-mentioned condensed water and small water mist droplets will increase the energy consumption of the heating component and increase the load of the entire thermal management system. Therefore, it is necessary to deal with the condensed water and small water mist droplets generated on the evaporator in a timely manner to avoid affecting the subsequent components and consumer experience.

[0004] Conventional technology generally utilizes the principle of gravity to optimize the design of the evaporator heat dissipation pipe structure, adjusts the appropriate window angle and angle of the evaporator heat dissipation belt (CN 115451614 A), and makes it easier for condensed water to be diverted to the automatic drain outlet. However, small droplets or water films are still inevitably present on the surface of the evaporator pipe. Under a certain airflow speed, the phenomenon of the condensed water being brought into the downstream air duct still exists. Some patents disclose "an air conditioner anti-blow water structure" (CN 110239313 B), which uses a hydrophobic and hydrophilic filter to intercept condensed water. However, the above device only processes large droplets of condensed water, and does not solve small droplets or water mist, and cannot effectively remove small droplets. Summary of the invention

[0005] In order to intercept condensed water and small water mist droplets downstream of the evaporator in the air duct of an automobile air conditioner, the present invention provides a liquid water filter device for an automobile air conditioner condenser evaporator, which can provide dry air for the automobile cabin and reduce the heat load of the downstream heating components of new energy vehicles.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A liquid water filtering device for an automobile air-conditioning condensing evaporator is installed on a heat dissipation belt of the air-conditioning evaporator. The filtering device comprises a shell, and also comprises a water absorbing component and a water guiding component arranged in the shell; the water absorbing component comprises a plurality of water absorbing gratings arranged at intervals, and one end of the plurality of water absorbing gratings abuts against the heat dissipation belt of the air-conditioning evaporator; the water guiding component comprises a plurality of water guiding gratings arranged at intervals, and one end of the plurality of water guiding gratings abuts against the corresponding water absorbing gratings; wherein the water absorption rate of the water guiding gratings is greater than the water absorption rate of the water absorbing gratings.

[0008] Furthermore, the water absorption rate of the water-guiding grid bars increases gradually from top to bottom.

[0009] Furthermore, the angle between the water absorption grid bar and the heat dissipation belt of the air conditioner evaporator abutting against it is -30° to 30°, and the wind resistance will increase significantly if it exceeds this range.

[0010] Furthermore, according to the actual situation of the air duct length, the length of the water absorption grid bar is set to 5-15 mm; the length of the water guide grid bar is set to 10-30 mm.

[0011] Furthermore, the side of the water guiding component facing away from the water absorbing component has a rubber-encapsulated structure to prevent the absorbed condensed water from being brought into the downstream airflow again under the action of the airflow.

[0012] Furthermore, a water guide groove is arranged at the lower part of the shell, and the water guided by the water guide bars is collected in the water guide groove and then flows out through the water outlet arranged on the shell.

[0013] Furthermore, the ratio of the number of the water absorption grille bars to the number of the pipelines of the air-conditioning condenser evaporator is 1:(1-3), for example, the ratio between the two is 1:1, 1:2, or 1:3.

[0014] Furthermore, the number of the plurality of water-guiding grating bars is consistent with the number of the plurality of water-absorbing grating bars.

[0015] Furthermore, under the premise of not affecting the water guiding function, the water absorption grating bars and the water guiding grating bars are connected by sewing or hydrophilic gluing.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] (1) The present invention provides a liquid water filtering device for an automobile air-conditioning condenser evaporator, which effectively intercepts condensed water and small water mist droplets from the automobile air-conditioning evaporator, can provide dry air for the automobile cabin, and reduce the heat load of the downstream heating components of the new energy vehicle;

[0018] (2) The present invention provides a liquid water filtering device for a car air-conditioning condenser evaporator. The device does not use a filter screen structure, which can greatly reduce the air pressure difference required to filter water and reduce the energy consumption of the system for removing water.

[0019] (3) The present invention provides a liquid water filtering device for a car air-conditioning condenser evaporator. The device has no moving parts, has a long service life and good durability, and the system does not require regular maintenance and can last as long as the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the schematic diagrams of the liquid water filtering device for the condenser evaporator of the automobile air conditioner in the embodiment;

[0021] Figure 2 This is a second schematic diagram of the liquid water filtering device for the condenser evaporator of the automobile air conditioner in the embodiment;

[0022] Figure 3 It is a cross-sectional view of a liquid water filtering device for a condenser evaporator of an automobile air conditioner in an embodiment;

[0023] Figure 4 It is a front view of the liquid water filtering device of the automobile air-conditioning condenser evaporator in the embodiment;

[0024] Figure 5 for Figure 4 Cross-sectional view from medium AA perspective;

[0025] Numbers in the figure are as follows: 1-air conditioning evaporator; 2-shell; 21-water absorption component; 22-water guide component; 3-water outlet; 4-water guide groove; 5-water absorption grid; 6-water guide grid; 7-pipeline on the air conditioning evaporator; α-angle between the pipeline on the air conditioning evaporator and the water absorption grid. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0027] Example

[0028] In order to intercept the condensed water and water mist droplets downstream of the evaporator in the air duct of the automobile air conditioner, this embodiment provides a liquid water filter device for the condenser evaporator of the automobile air conditioner, which is installed on the heat dissipation belt of the air conditioner evaporator. The specific structure is shown in Figure 1-5 The filtering device includes a housing 2, and also includes a water absorbing component 21 and a water guiding component 22 arranged in the housing 2;

[0029] The water absorbing component 21 includes a plurality of water absorbing grating bars 5 arranged at intervals, and one end of the plurality of water absorbing grating bars 5 abuts against the heat dissipation belt of the air conditioner evaporator; the water guiding component 22 includes a plurality of water guiding grating bars 6 arranged at intervals, and one end of the plurality of water guiding grating bars 6 abuts against the corresponding water absorbing grating bars 5;

[0030] In this embodiment, the water absorbing component 21 and the water guiding component 22 are both made of polymer water absorbing resin fibers through a non-woven processing process such as needle punching, wherein the water absorption rate of different fiber raw materials will be different due to the difference in the number of hydrophilic groups, ionizable groups and hinge structures inside them. Among them, the water absorption rate of the water guiding grid bar 6 is greater than the water absorption rate of the water absorbing grid bar 5.

[0031] In this embodiment, the water absorption rate of the water-guiding grid bars 6 increases gradually from top to bottom.

[0032] In this embodiment, the angle between the water absorption grille bar 5 and the heat dissipation belt of the air conditioner evaporator abutting against it is recorded as α, and the value range of α is -30° to 30°. If the value exceeds this range, the wind resistance will increase significantly.

[0033] In this embodiment, according to the actual length of the air duct, the length of the water absorption grid bar 5 is 5-15 mm; the length of the water guide grid bar 6 is 10-30 mm.

[0034] In this embodiment, the side of the water guiding component 22 facing away from the water absorbing component 21 has a rubber-encapsulated structure to prevent the absorbed condensed water from being brought into the downstream airflow again under the action of the airflow.

[0035] In this embodiment, a water guide groove 5 is provided at the lower portion of the housing 2 .

[0036] In this embodiment, the ratio of the number of the water absorption grid bars 5 to the number of the pipelines 7 of the air-conditioning condenser evaporator is 1:(1-3), for example, the ratio between the two is 1:1, 1:2, 1:3.

[0037] In this embodiment, the number of the plurality of water guide bars 6 is the same as the number of the plurality of water absorption bars 5 .

[0038] In this embodiment, the water absorption grating strips 5 and the water guide grating strips 6 are connected by sewing or hydrophilic gluing.

[0039] When the liquid water filtering device provided in this embodiment is working, it utilizes the water absorption performance of the water absorption grid bar 5 and the water guide grid bar 6 to firstly guide away the small droplets condensed by the air conditioner evaporator 1 in time through the water absorption grid bar 5, and then further guide out the condensed water on the water absorption grid bar 5 through the water guide grid bar 6 to collect and transfer, so as to prevent the small droplets or water film from gradually gathering into large droplets in the subsequent process of cooling the air by the air conditioner evaporator 1, and then disperse them into small droplets and water mist under the disturbance and entrainment of the air conditioner fan airflow and bring them into the downstream airflow. At the same time, when the U-shaped rubber encapsulation structure is added to the water guide grid bar 6, it can be prevented that the water guide grid bar 6 after water conduction further increases the humidity of the air in the air conditioner duct under the sweep of the wind. Through the above technical means, the problem of small droplets of condensed water and water mist being brought into the cabin through the air conditioner duct can be solved, and at the same time, the power consumption of the downstream heating element can be greatly reduced.

[0040] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A liquid water filter device for a car air-conditioning condenser evaporator, installed on a heat dissipation belt of the air-conditioning evaporator, the filter device comprises a housing (2), characterized in that: It also includes a water absorbing component (21) and a water guiding component (22) arranged in the housing (2); The water absorbing component (21) comprises a plurality of water absorbing bars (5) arranged at intervals, one end of the plurality of water absorbing bars (5) being in contact with the heat dissipation belt of the air conditioner evaporator; The water guide component (22) comprises a plurality of water guide bars (6) arranged at intervals, one end of each of the plurality of water guide bars (6) being in contact with the corresponding water absorption bar (5); Wherein, the water absorption rate of the water-guiding grating strips (6) is greater than the water absorption rate of the water-absorbing grating strips (5).

2. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1 is characterized in that: The water absorption rate of the water-guiding grid bars (6) increases gradually from top to bottom.

3. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The angle between the water absorption grid bar (5) and the heat dissipation belt of the air conditioner evaporator abutting against it is -30° to 30°.

4. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The length of the water absorbing grid bar (5) is 5 to 15 mm.

5. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The length of the water guide grid bar (6) is 10 to 30 mm.

6. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The side of the water-guiding component (22) facing away from the water-absorbing component (21) has a rubber-encapsulated structure to prevent the absorbed condensed water from being brought back into the downstream airflow under the action of the airflow.

7. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: A water guide groove (4) is provided at the lower part of the housing (2).

8. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The ratio of the number of the water absorption grid bars (5) to the number of pipelines of the air-conditioning condenser evaporator is 1:(1-3).

9. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The number of the plurality of water-guiding grating bars (6) is consistent with the number of the plurality of water-absorbing grating bars (5).

10. The automobile air-conditioning condenser evaporator liquid water filtering device according to claim 1, characterized in that: The water absorption grating strip (5) and the water guide grating strip (6) are connected by sewing or hydrophilic gluing.

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