Evaporator with automatic cleaning structure

Abstract

The utility model discloses an evaporator with an automatic cleaning structure. The evaporator comprises an evaporator main body and a cleaning mechanism arranged on the evaporator main body, the evaporator body is composed of an upper collecting pipe, a lower collecting pipe and a flat pipe set. A liquid inlet and an air outlet are formed in one side of the upper collecting pipe, a mounting plate is arranged on the other side of the upper collecting pipe, and a bottom plate is arranged on the same side of the lower collecting pipe and the mounting plate; the cleaning mechanism comprises a rectangular frame, a rotating shaft and a motor; the output end of the motor is connected with the rotating shaft; the other end of the rotating shaft is rotationally connected with the mounting plate through a bearing; a plurality of groups of partition plates are uniformly arranged in the rectangular frame and divide the rectangular frame into a plurality of groups of small rectangular accommodating cavities; each group of flat tubes in the flat tube group is arranged in one rectangular accommodating cavity; a brush is arranged on the inner side face of the rectangular containing cavity. An extension rod is arranged on the side, close to the rotating shaft, of the rectangular frame and matched with the spiral groove in the rotating shaft. Reciprocating motion is achieved through the rotating shaft, and cleaning is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the field of vehicle evaporators, and particularly relates to an evaporator with an automatic cleaning structure. Background Art

[0002] The vehicle evaporator is an important part of the automotive air conditioning system. Its main function is to obtain cold air in the refrigeration cycle. Liquid refrigerant evaporates into steam under low pressure and absorbs the heat of the medium to be cooled, thereby achieving the purpose of refrigeration.

[0003] At present, most of the evaporators on the market do not have an automatic cleaning mechanism and need to be cleaned manually or after being disassembled, with low efficiency. A small number of them use mechanical structures such as gears and racks, sliders and linear guide rails to achieve cleaning, which has a complex structure and is not conducive to popularization and use. Content of the Utility Model

[0004] The purpose of the utility model is to provide an evaporator with an automatic cleaning structure that operates stably and can achieve reciprocating cleaning, aiming to solve problems such as the decline in refrigeration efficiency and poor air circulation caused by the accumulation of impurities such as dust and dirt during the use of the evaporator.

[0005] The purpose of the utility model is achieved as follows: An evaporator with an automatic cleaning structure includes an evaporator main body and a cleaning mechanism arranged on the evaporator main body;

[0006] The evaporator main body is composed of an upper header, a lower header, and a flat tube group placed between the upper header and the lower header; the flat tube group is composed of multiple groups of flat tubes arranged at equal intervals; an inlet and an outlet are provided on one side of the upper header, and a mounting plate is provided on the other side; a bottom plate is provided on the same side of the lower header as the mounting plate.

[0007] The cleaning mechanism includes a rectangular frame, a rotating shaft, and a motor; a motor is provided on the bottom plate, the output end of the motor is connected to the rotating shaft, and the other end of the rotating shaft is rotatably connected to the mounting plate through a bearing; the rectangular frame is arranged around the flat tube group, multiple groups of partition plates are evenly arranged in the rectangular frame and divide the rectangular frame into multiple small rectangular accommodating cavities; each group of flat tubes in the flat tube group is placed in an accommodating cavity; a brush is provided on the inner side of the accommodating cavity; an extension rod is provided on one side of the rectangular frame close to the rotating shaft, and the extension rod matches the spiral groove on the rotating shaft.

[0008] Preferably, a right limit plate is provided between the extension rod and the rectangular frame, and a left limit plate is provided on the other side of the rectangular frame; two groups of guide posts are provided on the right limit plate and the left limit plate; the two ends of the two groups of guide posts located on the right limit plate are respectively fixed on the mounting plate and the base, and the two ends of the two groups of guide posts located on the left limit plate are respectively fixed on the extension plate, and the extension plates are respectively arranged at the left ends of the upper manifold and the lower manifold.

[0009] Preferably, the rectangular frame, the right limit plate, and the left limit plate are made of plastic material, and the extension rod is made of metal material.

[0010] Preferably, the spiral groove is composed of two thread grooves with the same pitch and opposite helix directions.

[0011] Preferably, when the extension rod runs to the top or bottom of the rotating shaft, there is a gap between the rectangular frame and the upper manifold or the lower manifold.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The rectangular frame is used to surround the flat tube group, and multiple groups of partition plates and brushes are provided. Moving the rectangular frame up and down can realize the cleaning of the flat tube group by the brushes; at the same time, multiple groups of guide posts are provided on both sides of the rectangular frame, making it more stable during the up and down movement and not easy to disengage; the rectangular frame made of high-strength composite plastic material is lighter in weight and not easy to be damaged.

[0014] 2. The rectangular frame is matched with the rotating shaft through the extension rod, and the spiral groove is set as two thread grooves with the same pitch and opposite helix directions, so that it can realize a reciprocating motion under the rotation of the rotating shaft and can realize multiple cleanings; at the same time, due to its reciprocating motion form, there is no need to worry about the problem of excessive stroke, and the mechanism runs more safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is Figure 1 the enlarged view of the structure at A in

[0017] Figure 3 is Figure 1 the enlarged view of the structure at B in

[0018] Among them, 1 is the evaporator main body, 101 is the upper header, 1011 is the liquid inlet, 1012 is the gas outlet, 1013 is the mounting plate, 102 is the lower header, 1021 is the bottom plate, 103 is the flat tube group, 1031 is the flat tube, 2 is the cleaning mechanism, 201 is the rectangular frame, 2011 is the partition, 2012 is the rectangular accommodating cavity, 2013 is the right limiting plate, 2014 is the left limiting plate, 202 is the rotating shaft, 2021 is the spiral groove, 203 is the motor, 3 is the brush, 4 is the extension rod, 5 is the guide post, and 6 is the extension plate. Detailed implementation manners

[0019] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0020] It should be noted that in the description of the present invention, it needs to be explained that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. It is 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 a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0021] In the description of the present invention, it also needs to be explained that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "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 or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] As Figures 1-3 shown, an evaporator with an automatic cleaning structure includes an evaporator main body 1 and a cleaning mechanism 2 provided on the evaporator main body 1;

[0023] The evaporator main body 1 is composed of an upper header 101, a lower header 102, and a flat tube group 103 disposed between the upper header 101 and the lower header 102; the flat tube group 103 is composed of multiple groups of flat tubes 1031 arranged at uniform intervals; an inlet 1011 and an outlet 1012 are provided on one side of the upper header 101, and a mounting plate 1013 is provided on the other side, and a bottom plate 1021 is provided on the same side as the mounting plate 1013 of the lower header 102;

[0024] The cleaning mechanism 2 includes a rectangular frame 201, a rotating shaft 202, and a motor 203; the motor 203 is provided on the bottom plate 1021, the output end of the motor 203 is connected to the rotating shaft 202, and the other end of the rotating shaft 202 is rotatably connected to the mounting plate 1013 through a bearing; the rectangular frame 201 is disposed around the flat tube group 103, and multiple groups of partition plates 2011 are evenly provided in the rectangular frame 201 and divide the rectangular frame into multiple small rectangular accommodation cavities 2012; each group of flat tubes 1031 in the flat tube group 103 is placed in a rectangular accommodation cavity 2012; a brush 3 is provided on the inner side surface of the rectangular accommodation cavity 2012; an extension rod 4 is provided on one side of the rectangular frame 201 adjacent to the rotating shaft 202, and the extension rod 4 is matched with a spiral groove 2021 on the rotating shaft 202.

[0025] As Figures 2-3 shown, a right limit plate 2013 is provided between the extension rod 4 and the rectangular frame 201, and a left limit plate 2014 is provided on the other side of the rectangular frame 201; two groups of guide posts 5 are provided on the right limit plate 2013 and the left limit plate 2014; the two ends of the two groups of guide posts 6 located on the right limit plate 2013 are respectively fixed on the mounting plate 1013 and the base 1021, and the two ends of the two groups of guide posts 2 located on the left limit plate 2014 are respectively fixed on the extension plate 6, and the extension plate 6 is respectively provided at the left ends of the upper header 101 and the lower header 102. By providing multiple groups of guide posts, the stability of the operation process of the rectangular frame can be improved, and deviation can be avoided.

[0026] As Figures 1-3 shown, the rectangular frame 201, the right limit plate 2013, and the left limit plate 2014 are made of plastic material, and the extension rod is made of metal material, which further reduces the overall weight of the rectangular frame, facilitates the driving of the motor, and at the same time, the extension rod in contact with the rotating shaft uses metal material, which can reduce wear and improve the service life.

[0027] As Figure 2 shown, the spiral groove 2021 is composed of two thread grooves with the same pitch and opposite helix directions. By rotating the rotating shaft, the extension rod runs in the left-handed or right-handed spiral groove. When running to the top or bottom, it is switched to the opposite spiral through the conversion groove and continues to run, that is, it drives the rectangular frame to run reciprocally. In actual operation, only the motor needs to be started and the motor can be turned off after the cleaning is completed, without controlling the forward and reverse rotation of the motor, which is convenient and fast.

[0028] As Figures 1-3 shown, when the extension rod 4 runs to the top or bottom of the rotating shaft 202, there is a small gap between the rectangular frame 201 and the upper manifold 101 or the lower manifold 102, ensuring that during operation, the rectangular frame does not come into contact with the manifold, protecting the main body of the rectangular frame and preventing damage.

[0029] The working principle of the present utility model is described as follows: When in use, start the motor, the motor drives the rotating shaft to rotate, further driving the extension rod and the rectangular frame to move up and down. The brush inside the rectangular frame can clean the flat tube group to avoid dust. When running to the bottom or top of the rotating shaft, automatic reciprocating motion can be achieved through steering. The overall structure is more novel and the use is more convenient and fast.

[0030] The above-described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.

Claims

1. An evaporator with an automatic cleaning structure, characterized in that: It includes an evaporator body and a cleaning mechanism arranged on the evaporator body; The evaporator body is composed of an upper header, a lower header, and a flat tube group placed between the upper header and the lower header; the flat tube group is composed of multiple groups of flat tubes evenly spaced and arranged; The upper manifold is provided with a liquid inlet and an air outlet on one side, and a mounting plate on the other side, and a bottom plate is provided on the same side as the lower manifold and the mounting plate; The cleaning mechanism includes a rectangular frame, a rotating shaft and a motor; a motor is provided on the bottom plate, the output end of the motor is connected to the rotating shaft, and the other end of the rotating shaft is rotatably connected to the mounting plate through a bearing; the rectangular frame is arranged around the flat tube group, and a plurality of groups of partitions are evenly arranged in the rectangular frame to divide the rectangular frame into a plurality of groups of small rectangular accommodating cavities; each group of flat tubes in the flat tube group is placed in a rectangular accommodating cavity; a brush is provided on the inner side of the rectangular accommodating cavity; an extension rod is provided on the side of the rectangular frame close to the rotating shaft, and the extension rod matches the spiral groove on the rotating shaft.

2. The evaporator with automatic cleaning structure according to claim 1, characterized in that: A right limit plate is provided between the extension rod and the rectangular frame, and a left limit plate is provided on the other side of the rectangular frame; two groups of guide columns are provided on the right limit plate and the left limit plate; the two ends of the two groups of guide columns located on the right limit plate are respectively fixed to the mounting plate and the base, and the two ends of the two groups of guide columns located on the left limit plate are respectively fixed to the extension plates, and the extension plates are respectively arranged at the left ends of the upper collecting pipe and the lower collecting pipe.

3. The evaporator with automatic cleaning structure according to claim 1, characterized in that: The rectangular frame, the right limiting plate and the left limiting plate are made of plastic material, and the extension rod is made of metal material.

4. The evaporator with an automatic cleaning structure according to claim 1, characterized in that: The spiral groove is composed of two thread grooves with the same pitch and opposite rotation directions.

5. The evaporator with an automatic cleaning structure according to claim 1, characterized in that: When the extension rod moves to the top end or the bottom end of the rotating shaft, a gap is left between the rectangular frame and the upper header or the lower header.

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