阅读说明：本技术 一种汽车空调用蒸发器 (Evaporator for automobile air conditioner ) 是由 冯云 于 2019-09-17 设计创作，主要内容包括：本发明公开了一种汽车空调用蒸发器,属于汽车空调技术领域,包括安装保护壳、蒸发器本体、进出气组件、清洁组件、两个移动组件和两个收集组件,所述安装保护壳的前端侧壁设有若干个进气槽,所述蒸发器本体设置在所述安装保护壳内,所述进出气组件设置在所述安装保护壳内,两个所述移动组件呈对称设置在所述安装保护壳内,所述清洁组件的两端分别与两个所述移动组件的一端固定连接,两个所述收集组件呈对称设置在所述安装保护壳的底部。本发明解决了蒸发器的百叶窗翅片上会堆积大量空气气流中含有的细小灰尘,灰尘会堵塞并腐蚀百叶窗翅片,影响蒸发器的工作效率的问题。(The invention discloses an evaporator for an automobile air conditioner, which belongs to the technical field of automobile air conditioners and comprises an installation protective shell, an evaporator body, an air inlet and outlet assembly, a cleaning assembly, two moving assemblies and two collecting assemblies, wherein the side wall of the front end of the installation protective shell is provided with a plurality of air inlet grooves, the evaporator body is arranged in the installation protective shell, the air inlet and outlet assembly is arranged in the installation protective shell, the two moving assemblies are symmetrically arranged in the installation protective shell, two ends of the cleaning assembly are respectively and fixedly connected with one end of each of the two moving assemblies, and the two collecting assemblies are symmetrically arranged at the bottom of the installation protective shell. The invention solves the problem that a large amount of fine dust contained in air flow can be accumulated on the louver fins of the evaporator, and the fine dust can block and corrode the louver fins to influence the working efficiency of the evaporator.)

1. An evaporator for an automobile air conditioner is characterized in that: including installation protective housing (1), evaporimeter body (2), business turn over gas subassembly (3), clean subassembly (4), two removal subassemblies (5) and two collection subassemblies (6), the front end lateral wall of installation protective housing (1) is equipped with a plurality of air inlet duct (101), evaporimeter body (2) set up in installation protective housing (1), business turn over gas subassembly (3) set up in installation protective housing (1), two remove subassembly (5) and be the symmetry setting in installation protective housing (1), the both ends of clean subassembly (4) respectively with two the one end fixed connection of removal subassembly (5), two collection subassembly (6) are the symmetry setting and are in the bottom of installation protective housing (1).

2. An evaporator for an air conditioner of an automobile as set forth in claim 1, wherein: the air inlet and outlet assembly (3) comprises a first driving motor (301), a chain (302), a protective cover (303) and a plurality of rotating pieces (304), wherein the protective cover (303) is arranged at the top of the installation protective shell (1), the plurality of rotating pieces (304) can be rotatably installed in the installation protective shell (1), the top ends of the rotating pieces (304) extend into the protective cover (303), each rotating piece (304) comprises an upper rotating shaft (3041), a lower rotating shaft (3042), a rotating cylinder (3043) and a chain wheel (3044), the upper rotating shaft (3041) can be rotatably installed at the top end of the interior of the installation protective shell (1), the top end of the upper rotating shaft (3041) extends into the protective cover (303), the lower rotating shaft (3042) can be rotatably installed at the bottom end of the interior of the installation protective shell (1), the two ends of the rotating cylinder (3043) are respectively fixedly connected with the bottom end of the upper rotating shaft (3041) and the top end of the lower rotating shaft (3042), a through groove (3045) is formed in the rotating cylinder (3043), the chain wheels (3044) are fixedly connected with the top ends of the upper rotating shaft (3041), the chains (302) are sleeved outside all the chain wheels (3044), the first driving motor (301) is vertically arranged at the top end of the protective cover (303), and the output shaft of the first driving motor (301) is fixedly connected with one of the upper rotating shaft (3041).

3. An evaporator for an air conditioner of an automobile as set forth in claim 1, wherein: every remove subassembly (5) all include first mount pad (501), second mount pad (502), drive roll (503), driven voller (504), belt (505) and second driving motor (506), first mount pad (501) with second mount pad (502) are the symmetry and set up in installation protective housing (1), drive roll (503) can rotate to be installed in first mount pad (501), driven voller (504) can rotate to be installed in second mount pad (502), belt (505) cover is established drive roll (503) with the outside of driven voller (504), second driving motor (506) are the level and are set up on the lateral wall of first mount pad (501) to the output shaft of second driving motor (506) extend to with drive roll (503) fixed connection.

4. An evaporator for an air conditioner of an automobile as set forth in claim 3, wherein: the cleaning component (4) comprises two first connecting plates (401), two rotating rollers (402), two second connecting plates (403) and two hollow boxes (404), wherein the two first connecting plates (401) and the two second connecting plates (403) are respectively fixedly connected with two belts (505) in the moving component (5), the two rotating rollers (402) can be rotatably installed on the two first connecting plates (401), the two rotating rollers (402) are respectively positioned at two sides of the evaporator body (2), each rotating roller (402) is provided with a plurality of brush heads (405), the plurality of brush heads (405) are respectively abutted against the evaporator body (2), the two hollow boxes (404) are symmetrically arranged on the two second connecting plates (403), and the two hollow boxes (404) are respectively positioned at two sides of the evaporator body (2), and a plurality of spray heads (406) are arranged on the side wall of each hollow box (404) close to the evaporator body (2).

5. An evaporator for an air conditioner of an automobile as set forth in claim 1, wherein: each collecting assembly (6) comprises a collecting box (601), a water falling pipe (602), a filtering hopper (603) and two L-shaped slide ways (604), wherein the two L-shaped slide ways (604) are symmetrically arranged at the bottom of the mounting protective shell (1), the collecting box (601) is arranged between the two L-shaped slide ways (604), the two ends of the top of the collecting box (601) are in sliding fit with the two L-shaped slide ways (604), the water falling pipe (602) is arranged at the bottom of the collecting box (601), the filtering hopper (603) is arranged in the water falling pipe (602), and the top end of the filtering hopper (603) is clamped with the inner bottom end of the collecting box (601).

6. An evaporator for an air conditioner of an automobile as set forth in claim 5, wherein: the bottom of the mounting protective shell (1) is provided with rectangular grooves (102) which correspond to the collecting boxes (601) in the two collecting assemblies (6).

7. An evaporator for an air conditioner of an automobile as set forth in claim 1, wherein: four fixing columns (103) are arranged on the side wall of the mounting protection shell (1).

Technical Field

The invention relates to the technical field of automobile air conditioners, in particular to an evaporator for an automobile air conditioner.

background

The automobile air conditioning system is a device for refrigerating, heating, ventilating and purifying air in a carriage, and is one of the signs for judging whether the functions of an automobile are complete or not. The evaporator is a key component in an automobile air conditioning unit, and the structural type, material performance and manufacturing process of the evaporator affect the working efficiency of the whole air conditioning system. The evaporator mainly comprises an evaporation chamber and a heat exchange tube arranged in the evaporation chamber, when the evaporator is used for concentrating and evaporating the feed liquid, the feed liquid flows in the heat exchange tube, the evaporation chamber is internally filled with a heating medium, and the heating medium transfers heat to the evaporated feed liquid through the wall of the heat exchange tube, so that the purpose of concentrating the feed liquid by evaporation is achieved.

Current patent number CN101975493B discloses a vehicle air conditioner parallel flow evaporimeter, the evaporimeter be preceding heat transfer module and back heat transfer module parallel arrangement, the middle part of the evaporating chamber of preceding heat transfer module is equipped with the spacer, the flat pipe number of inlet liquid is greater than the flat pipe number of giving vent to anger, the inlet and outlet pipe equipartition is in the middle part of two rooms that is separated the evaporating chamber by the spacer. Due to the adoption of the structure, the device has the following advantages: 1. the heat exchange efficiency is improved to the maximum extent, and the surface temperature of the evaporator is more uniform; 2. the weight is light, so that the weight of the whole vehicle is reduced; 3. the processing technology is simpler and is suitable for large-scale production; 4. the installation is convenient, and the production efficiency of the whole vehicle is improved. However, when the evaporator is used for a long time, a large amount of fine dust contained in air flow can be accumulated on the louver fins of the evaporator, and the fine dust can block and corrode the louver fins, so that the working efficiency of the evaporator is affected.

Disclosure of Invention

the invention aims to solve the technical problem that a large amount of fine dust contained in air flow can be accumulated on louver fins of an evaporator in the prior art, and the fine dust can block and corrode the louver fins to influence the working efficiency of the evaporator.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an evaporator for automobile air conditioner, is including installation protective housing, evaporimeter body, business turn over gas subassembly, clean subassembly, two removal subassemblies and two collection subassemblies, the front end lateral wall of installation protective housing is equipped with a plurality of air inlet duct, the evaporimeter body sets up in the installation protective housing, the subassembly setting of giving vent to anger is in the installation protective housing, two remove the subassembly and be the symmetry setting in the installation protective housing, the both ends of clean subassembly respectively with two the one end fixed connection of removing the subassembly, two it is the symmetry setting to collect the subassembly and is in the bottom of installation protective housing.

further, the air inlet and outlet assembly comprises a first driving motor, a chain, a protective cover and a plurality of rotating pieces, the protective cover is arranged at the top of the installation protective shell, the plurality of rotating pieces can be rotatably installed in the installation protective shell, the top ends of the rotating pieces extend into the protective cover, each rotating piece comprises an upper rotating shaft, a lower rotating shaft, a rotating cylinder and a chain wheel, the upper rotating shaft can be rotatably installed at the top end inside the installation protective shell, the top end of the upper rotating shaft extends into the protective cover, the lower rotating shaft can be rotatably installed at the bottom end inside the installation protective shell, two ends of the rotating cylinders are respectively fixedly connected with the bottom end of the upper rotating shaft and the top end of the lower rotating shaft, a through groove is formed in each rotating cylinder, and the chain wheel is fixedly connected with the top end of the upper rotating shaft, the chain sleeve is established all the outside of sprocket, first driving motor is vertical setting and is in the top of safety cover to first driving motor's output shaft and one of them last axis of rotation fixed connection.

Further, every the removal subassembly all includes first mount pad, second mount pad, drive roll, driven voller, belt and second driving motor, first mount pad with the second mount pad is the symmetry and sets up in the installation protective housing, the drive roll can rotate to be installed in the first mount pad, the driven voller can rotate to be installed in the second mount pad, the belt cover is established the drive roll with the outside of driven voller, second driving motor is the level and sets up on the lateral wall of first mount pad to second driving motor's output shaft extend to with drive roll fixed connection.

Further, clean subassembly includes two first connecting plates, two live rollers, two second connecting plates and two cavity casees, two first connecting plate and two the second connecting plate respectively with two remove the belt fixed connection in the subassembly, two the live roller can be rotationally installed two on the first connecting plate, and two the live roller is located respectively the both sides of evaporimeter body, every all be equipped with a plurality of brush head, a plurality of on the live roller the brush head all with the evaporimeter body is contradicted, two the cavity case is the symmetry and sets up two on the second connecting plate, and two the cavity case is located respectively the both sides of evaporimeter body, every the cavity case is close to be equipped with a plurality of shower nozzle on the lateral wall of evaporimeter body.

Further, every the collection subassembly all includes collecting box, pipe in the water, filter hopper and two L type slides, two the L type slide is the symmetry and sets up the bottom of installation protective housing, the collecting box sets up two between the L type slide, and the top both ends of collecting box with two L type slide sliding fit, the pipe in the water sets up the bottom of collecting box, the filter hopper sets up in the pipe in the water, and the top of filter hopper with the inside bottom block of collecting box.

furthermore, the bottom of the mounting protective shell is provided with a rectangular groove corresponding to the collecting boxes in the two collecting assemblies.

Furthermore, four fixing columns are arranged on the side wall of the mounting protection shell.

Compared with the prior art, the invention has the beneficial effects that:

Firstly, the air inlet and outlet of the air inlet grooves are controlled by the air inlet and outlet assembly to work, when the evaporator body works for a certain time, the evaporator body stops working, at the moment, the air inlet and outlet assembly works to prevent external air flow from flowing into the installation protection shell through the air inlet grooves, then the two moving assemblies work synchronously to drive the cleaning assembly to move, fine dust accumulated on the louver fins in the evaporator body is cleaned while the cleaning assembly moves, the cleaned dust falls into the two collecting assemblies to be collected, the louver fins are prevented from being blocked by the dust and corroded, and the working efficiency of the evaporator body cannot be influenced.

Secondly, the first driving motor works to drive the upper rotating shaft fixedly connected with the output shaft of the upper rotating shaft to rotate, the upper rotating shaft rotates to drive the chain wheels fixedly connected with the top ends of the upper rotating shaft to synchronously rotate, the chain is sleeved outside all the chain wheels, so that all the chain wheels are driven by the chain to synchronously rotate, all the chain wheels rotate to drive all the rotating cylinders to rotate along with the chain wheels, when the through grooves in the rotating cylinders rotate to correspond to the air inlet grooves, the external air flow flows into the installation protective shell through the air inlet grooves, when the external air flow does not need to flow into the installation protective shell, only the first driving motor needs to continuously work to drive the through grooves in the rotating cylinders to rotate to be not corresponding to the air inlet grooves, and the purpose of controlling the air inlet and outlet of the air inlet grooves.

thirdly, the driving roller fixedly connected with the output shaft of the second driving motor is driven to rotate through the work of the second driving motor, and the belt is sleeved outside the driving roller and the driven roller, so that the driving roller drives the belt and the driven roller to synchronously rotate, the belt rotates to drive the cleaning assembly to synchronously rotate, and the cleaning assembly is convenient to clean fine dust accumulated on the louver fins in the evaporator body.

Fourthly, the two first connecting plates and the two second connecting plates are driven to synchronously move through rotation of the belt, the two second connecting plates drive the two hollow boxes to synchronously move, a plurality of spray heads on each hollow box spray water in the hollow boxes onto the shutter fins in the evaporator body to spray and wash fine dust accumulated on the shutter fins in the evaporator body, meanwhile, the hollow boxes are connected with an external water source to provide a water source for the plurality of spray heads, the two first connecting plates drive the two rotating rollers to synchronously move, the plurality of brush heads on each rotating roller brush the fine dust which is not washed off on the shutter fins in the evaporator body, and therefore the shutter fins are prevented from being blocked by the dust and corroded, and the working efficiency of the evaporator body cannot be influenced.

Fifthly, the invention collects sewage and dust generated by spraying and brushing the louver fins in the evaporator body through the collecting box, the sewage is discharged through the downpipe after being filtered by the filter hopper, and when the dust collected in the collecting box is excessive, the collecting box can be easily cleaned only by manually sliding out of the two L-shaped slideways.

drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a partial cross-sectional view of the first embodiment of the present invention;

FIG. 4 is a partial sectional view of the second embodiment of the present invention;

FIG. 5 is a partial perspective view of the first embodiment of the present invention;

FIG. 6 is a partial perspective view of the second embodiment of the present invention;

FIG. 7 is a first perspective view of the collecting assembly of the present invention;

FIG. 8 is a second perspective view of the collecting assembly of the present invention;

Fig. 9 is a schematic perspective view of the installation protection case of the present invention.

The reference numbers in the figures are: 1, mounting a protective shell; 101-an air inlet groove; 102-a rectangular groove; 103-fixed columns; 2-an evaporator body; 3-an air inlet and outlet assembly; 301-a first drive motor; 302-a chain; 303-a protective cover; 304-a rotation member; 3041-rotating the shaft; 3042-rotating the shaft downwards; 3043-rotating the barrel; 3044-a sprocket; 3045-a through groove; 4-a cleaning component; 401 — a first connection board; 402-a rotating roller; 403-a second connecting plate; 404-hollow box; 405-a bristle head; 406-a spray head; 5-a moving component; 501-a first mounting seat; 502-a second mount; 503-drive roll; 504-driven rollers; 505-a belt; 506-a second drive motor; 6-a collection assembly; 601-a collection box; 602-a downpipe; 603-a filter funnel; 604-L-shaped slide way.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 9, the invention provides an evaporator for an automobile air conditioner, which includes an installation protection shell 1, an evaporator body 2, an air inlet and outlet assembly 3, a cleaning assembly 4, two moving assemblies 5 and two collecting assemblies 6, wherein the side wall of the front end of the installation protection shell 1 is provided with a plurality of air inlet grooves 101, the evaporator body 2 is arranged in the installation protection shell 1, the air inlet and outlet assembly 3 is arranged in the installation protection shell 1, the two moving assemblies 5 are symmetrically arranged in the installation protection shell 1, two ends of the cleaning assembly 4 are respectively fixedly connected with one ends of the two moving assemblies 5, the two collecting assemblies 6 are symmetrically arranged at the bottom of the installation protection shell 1, the air inlet and outlet of the air inlet grooves 101 are controlled by the air inlet and outlet assembly 3, and after the evaporator body 2 works for a certain time, 2 stop work of evaporimeter body, 3 work of the subassembly of giving vent to anger this moment can't flow to installation protective housing 1 through a plurality of air inlet tank 101 with external air current, then two remove 5 synchronous workings of subassembly and drive clean subassembly 4 and remove, the simultaneous operation that clean subassembly 4 removed is cleared up accumulational tiny dust on the shutter fin in the evaporimeter body 2, the dust after the clearance falls to two collection subassemblies 6 in and collects, prevent that the dust from blockking up and corroding the shutter fin, can not influence the work efficiency of evaporimeter body 2.

The air inlet and outlet assembly 3 includes a first driving motor 301, a chain 302, a protecting cover 303 and a plurality of rotating members 304, the protecting cover 303 is disposed on top of the installation protection shell 1, the plurality of rotating members 304 are rotatably installed in the installation protection shell 1, top ends of the plurality of rotating members 304 extend into the protecting cover 303, each rotating member 304 includes an upper rotating shaft 3041, a lower rotating shaft 3042, a rotating cylinder 3043 and a chain wheel 3044, the upper rotating shaft 3041 is rotatably installed on top of the installation protection shell 1, top ends of the upper rotating shaft 3041 extend into the protecting cover 303, the lower rotating shaft 3042 is rotatably installed on bottom of the installation protection shell 1, two ends of the rotating cylinder 3043 are respectively fixedly connected to bottom ends of the upper rotating shaft 3041 and top ends of the lower rotating shaft 3042, and a through slot 3045 is disposed on the rotating cylinder 3043, the chain wheels 3044 are fixedly connected to the top ends of the upper rotating shafts 3041, the chain 302 is sleeved outside all the chain wheels 3044, the first driving motor 301 is vertically arranged on the top end of the protecting cover 303, the output shaft of the first driving motor 301 is fixedly connected to one of the upper rotating shafts 3041, the first driving motor 301 drives one upper rotating shaft 3041 fixedly connected to the output shaft thereof to rotate, the upper rotating shaft 3041 rotates to drive the chain wheels 3044 fixedly connected to the top ends thereof to rotate synchronously, the chain 302 is sleeved outside all the chain wheels 3044, so that the chain 302 drives all the chain wheels 3044 to rotate synchronously, all the chain wheels 3044 rotate to drive all the rotating cylinders 3043 to rotate therewith, when the through grooves 3045 on the rotating cylinders 3043 rotate to correspond to the air inlet grooves 101, the outside air flow into the mounting protecting housing 1 through the air inlet grooves 101, when the external air flow is not needed to flow into the installation protection shell 1, the first driving motor 301 is only needed to continue to work to drive the through groove 3045 on the rotating cylinder 3043 to rotate to be not corresponding to the air inlet groove 101, so that the purpose of controlling the air inlet and outlet of the air inlet groove 101 is achieved.

Each moving assembly 5 comprises a first mounting seat 501, a second mounting seat 502, a driving roller 503, a driven roller 504, a belt 505 and a second driving motor 506, the first mounting seat 501 and the second mounting seat 502 are symmetrically arranged in the mounting protective shell 1, the driving roller 503 can be rotatably arranged in the first mounting seat 501, the driven roller 504 can be rotatably arranged in the second mounting seat 502, the belt 505 is sleeved outside the driving roller 503 and the driven roller 504, the second driving motor 506 is horizontally arranged on the side wall of the first mounting seat 501, the output shaft of the second driving motor 506 extends to be fixedly connected with the driving roller 503, the driving roller 503 fixedly connected with the output shaft is driven to rotate through the operation of the second driving motor 506, and the belt 505 is sleeved outside the driving roller 503 and the driven roller 504, therefore, the driving roller 503 drives the belt 505 and the driven roller 504 to synchronously rotate, and the belt 505 rotates to drive the cleaning component 4 to synchronously rotate, so that the cleaning component 4 can conveniently clean fine dust accumulated on the louver fins in the evaporator body 2.

the cleaning component 4 comprises two first connecting plates 401, two rotating rollers 402, two second connecting plates 403 and two hollow boxes 404, wherein the two first connecting plates 401 and the two second connecting plates 403 are respectively and fixedly connected with two belts 505 in the moving component 5, the two rotating rollers 402 are rotatably mounted on the two first connecting plates 401, the two rotating rollers 402 are respectively positioned at two sides of the evaporator body 2, each rotating roller 402 is provided with a plurality of bristles 405, the bristles 405 are respectively abutted against the evaporator body 2, the two hollow boxes 404 are symmetrically arranged on the two second connecting plates 403, the two hollow boxes 404 are respectively positioned at two sides of the evaporator body 2, and a plurality of spray heads 406 are arranged on the side wall of each hollow box 404 close to the evaporator body 2, the two first connecting plates 401 and the two second connecting plates 403 are driven to synchronously move through rotation of the belt 505, the two second connecting plates 403 are driven to synchronously move the two hollow boxes 404, a plurality of spray heads 406 on each hollow box 404 spray water in each hollow box 404 onto the louver fins in the evaporator body 2, fine dust accumulated on the louver fins in the evaporator body 2 is sprayed and washed, meanwhile, the hollow boxes 404 are connected with an external water source and provide a water source for the spray heads 406, the two first connecting plates 401 are driven to synchronously move the two rotating rollers 402, a plurality of brush heads 405 on each rotating roller 402 brush fine dust which is not washed off on the louver fins in the evaporator body 2, the louver fins are prevented from being blocked by dust and corroded, and the working efficiency of the evaporator body 2 is not influenced.

Each collecting assembly 6 comprises a collecting box 601, a downpipe 602, a filtering funnel 603 and two L-shaped slideways 604, wherein the two L-shaped slideways 604 are symmetrically arranged at the bottom of the mounting protective shell 1, the collecting box 601 is arranged between the two L-shaped slideways 604, two ends of the top of the collecting box 601 are in sliding fit with the two L-shaped slideways 604, the downpipe 602 is arranged at the bottom of the collecting box 601, the filtering funnel 603 is arranged in the downpipe 602, the top end of the filtering funnel 603 is clamped with the bottom end of the inside of the collecting box 601, sewage and dust generated by spraying and brushing the louver fins in the evaporator body 2 are collected by the collecting box 601, the sewage is filtered by the filtering funnel 603 and then discharged through the downpipe 602, when too much dust is collected in the collecting box 601, the collecting box 601 only needs to be manually slid out of the two L-shaped slideways 604, the inside of the collection box 601 can be easily cleaned.

The bottom of the installation protection shell 1 is provided with rectangular grooves 102 corresponding to the collecting boxes 601 in the two collecting assemblies 6, and sewage and dust generated by spraying and brushing off the louver fins in the evaporator body 2 can be conveniently dropped into the collecting boxes 601 through the rectangular grooves 102 for collection.

all be equipped with four fixed columns 103 on the lateral wall of installation protective housing 1, conveniently stabilize installation protective housing 1 and car fixedly through four fixed columns 103.

The working principle of the invention is as follows: when the air-conditioning evaporator is used, the first driving motor 301 works to drive the upper rotating shaft 3041 fixedly connected with the output shaft of the first driving motor to rotate, the upper rotating shaft 3041 rotates to drive the chain wheels 3044 fixedly connected with the top ends of the upper rotating shaft 3041 to synchronously rotate, the chains 302 are sleeved outside all the chain wheels 3044, so that all the chain wheels 3044 are driven by the chains 302 to synchronously rotate, all the chain wheels 3044 rotate to drive all the rotating cylinders 3043 to rotate along with the chain wheels 3043, when the through grooves 3045 on the rotating cylinders 3043 rotate to correspond to the air inlet grooves 101, the outside air flow flows into the installation protective shell 1 through the air inlet grooves 101 at the moment, when the evaporator body 2 works for a certain time, the evaporator body 2 stops working, and then the outside air flow into the installation protective shell 1 is not needed, only the first driving motor 301 needs to continuously work to drive the through grooves 3045 on the rotating cylinders 3043 to rotate to be not corresponding to the air inlet grooves 101, then the second driving motor 506 works to drive the driving roller 503 fixedly connected with the output shaft thereof to rotate, because the belt 505 is sleeved outside the driving roller 503 and the driven roller 504, the driving roller 503 drives the belt 505 and the driven roller 504 to synchronously rotate, the belt 505 rotates to drive the two first connecting plates 401 and the two second connecting plates 403 to synchronously move, the two second connecting plates 403 move to drive the two hollow boxes 404 to synchronously move, a plurality of spray heads 406 on each hollow box 404 spray water in the hollow boxes 404 onto the louver fins in the evaporator body 2 to spray and wash fine dust accumulated on the louver fins in the evaporator body 2, meanwhile, the hollow boxes 404 are connected with an external water source to provide water for a plurality of spray heads 406, the two first connecting plates 401 move to drive the two rotating rollers 402 to synchronously move, a plurality of brush heads 405 on each rotating roller 402 brush fine dust which is not washed off on the louver fins in the evaporator body 2, prevent that the dust from blockking up and corroding the shutter fin, can not influence the work efficiency of evaporimeter body 2, collecting box 601 is collected the sewage and the dust that the shutter fin in the spraying and washing and the scrubbing evaporimeter body 2 produced, and the sewage recycles and filters through pipe in the water 602 discharge behind filter hopper 603, and when the dust of collecting in collecting box 601 was too much, only need the manual work with collecting box 601 follow two L type slides 604 in roll-off, just can easily clear up in the collecting box 601.