CN210380474U - Cooling fan cover of protection grade IP55 - Google Patents

Cooling fan cover of protection grade IP55 Download PDF

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Publication number
CN210380474U
CN210380474U CN201921507025.5U CN201921507025U CN210380474U CN 210380474 U CN210380474 U CN 210380474U CN 201921507025 U CN201921507025 U CN 201921507025U CN 210380474 U CN210380474 U CN 210380474U
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China
Prior art keywords
air
air inlet
cover
blocking piece
water
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Application number
CN201921507025.5U
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Chinese (zh)
Inventor
张明洪
吴放明
濮晓明
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Wuxi Mingtong Power Accessories Co ltd
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Wuxi Mingtong Power Accessories Co ltd
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Abstract

The utility model provides a protection level IP 55's cooling fan housing, including the cover body, metal mesh, breakwater, filter, wind channel cover and centrifugal fan, centrifugal fan sets up the top of the cover body, the cover body falls into four air inlet regions, two air inlet joining regions, an air-out joining region, and every air inlet region all is equipped with metal mesh, breakwater and filter, and the metal mesh setting is in the air intake department in air inlet region, and the breakwater setting is in the top of metal mesh, and the filter setting is in the top of breakwater, and the air intake of cooling motor is treated in the air outlet intercommunication in air inlet region, and the air intake of treating cooling motor is located the air inlet joining region, and the air outlet of treating cooling motor is located the air-out joining region, treats the air intake of cooling motor's air outlet intercommunication wind channel cover. Protection level IP 55's cooling fan housing safe in utilization, be convenient for maintain, effectively prevent inside foreign object gets into the motor, effective dampproofing and waterproofing.

Description

Cooling fan cover of protection grade IP55
Technical Field
The utility model relates to a cooling system, concretely relates to protection level IP 55's cooling fan housing.
Background
The tubular cooler for the existing motor has the defects that the heat exchange between a primary circulating medium and a secondary circulating medium is caused, the heat transfer temperature difference is small, the heat transfer coefficient of a heat exchanger is influenced by comprehensive factors such as physical parameters, the increase range is limited, the heat exchange requirement of a large motor is met, a larger heat exchange area is needed, the size of the cooler for the large motor is large, the weight is heavy, and the material utilization rate is low. The conventional louver type fan housing directly cools a motor winding by using outside air, the heat transfer temperature difference is larger than that of an air cooler, but the conventional louver type fan housing cannot effectively prevent foreign objects from entering the motor due to direct contact with the outside air, cannot effectively prevent water and moisture, can only reach the IP23 protection level of GB 4208-; and no matter the tube cooler or the louvered air cooling cover, the problem of difficult maintenance exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide protection level IP 55's cooling fan housing, overcome above-mentioned defect, through making a new-type protection level IP 55's cooling fan housing structure, solve foretell problem.
In order to solve the technical problem, the utility model provides a protection level IP 55's cooling fan housing, including the cover body, metal mesh, breakwater, filter, wind channel cover and centrifugal fan, centrifugal fan sets up the top of the cover body, the cover body falls into four air inlet district, two air inlet joining regions, an air-out joining region, and two air inlet joining regions and an air-out joining region constitute the center, four air inlet districts are located the place ahead of center, rear, left and right-hand respectively, and every air inlet district all is equipped with metal mesh, breakwater and filter, the metal mesh sets up the air inlet department in the air inlet district, the breakwater sets up the top of metal mesh, the filter sets up the top of breakwater, the air outlet intercommunication of air inlet district waits to cool off the air intake of motor, the air intake of waiting to cool off the motor is located in the air inlet joining region, the air outlet of the motor to be cooled is located in the air outlet connection area, the air outlet of the motor to be cooled is communicated with the air inlet of the air duct cover, and the air outlet of the air duct cover is communicated with the external atmosphere.
As a preferred scheme of the cooling fan housing of protection level IP55 of the present invention, the aperture ratio of the metal mesh is 80%.
As a preferable scheme of the cooling fan housing with the protection level IP55 of the present invention, the water guard plates include a plurality of first water guard plates and a plurality of second water guard plates, the plurality of first water guard plates are arranged in parallel above the metal mesh, the plurality of second water guard plates are arranged in parallel above the plurality of first water guard plates, a second water guard plate is disposed on a central line between two adjacent first water guard plates, the first water guard plate has a first blocking piece and a second blocking piece, the top of the first blocking piece is connected to the bottom of the second blocking piece, the first blocking piece is perpendicular to the ground, an included angle between the first blocking piece and the second blocking piece is 120-degree and 150-degree, the second water guard plate has a third blocking piece and a fourth blocking piece, the top of the third blocking piece is connected to the bottom of the fourth blocking piece, the third blocking piece is perpendicular to the ground, an included angle between the third blocking piece and the fourth blocking piece is 120-degree and 150-degree, the included angle between the second blocking piece and the fourth blocking piece is 60-120 degrees.
As a protection level IP 55's a preferred scheme of cooling fan housing, the extension line of second separation blade with horizontal distance between the third separation blade is 5 mm.
As a protection level IP 55's a preferred scheme of cooling fan housing, the filter is the coarse cotton filter screen of imitating at G3 level, the filtration particle diameter of the coarse cotton filter screen is more than or equal to 0.1 mm's granule, the thickness of the coarse cotton filter screen of imitating is 40mm, highly is 800mm, the cross wind area of the coarse cotton filter screen of imitating is 5 square meters.
As an optimal selection scheme of protection level IP 55's cooling fan housing, the air outlet department of wind channel cover is equipped with the shield.
As an optimal selection scheme of protection level IP 55's cooling fan housing, centrifugal fan's top is equipped with rain-proof cap.
Compared with the prior art, the utility model provides a protection level IP 55's cooling fan housing's advantage is:
1. the heat generated by the motor to be cooled in the running process can be taken away, and the motor to be cooled is ensured to run in a safe temperature range (the temperature rise limit value is 85K);
2. sufficient power is provided for the circulation of an air path of the motor to be cooled, the wind resistance in the motor to be cooled is overcome, and the wind resistance of the cover body is cooled;
3. the filter is additionally arranged, foreign matters are completely prevented from entering the interior, dust exceeding 0.1mm is prevented from invading, and the invasion amount of the dust does not influence the normal operation of the electric appliance;
4. the water baffle structure prevents rainwater from entering and prevents sprayed water from entering the interior;
5. the filter needs to be maintained and replaced after being used for a period of time, and the design of the overhaul cover plate is convenient for maintenance;
6. when the whole body stops running, the external air port is automatically closed through the electric air valve, and foreign objects, flying birds and insects are prevented from entering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein the content of the first and second substances,
fig. 1 is a schematic front view of a cooling fan housing of protection class IP55 according to the present invention;
fig. 2 is a schematic side view of a cooling fan housing of protection class IP55 according to the present invention;
fig. 3 is a schematic plan view of a partial structure of a cooling fan housing of protection class IP55 according to the present invention.
Wherein: the air conditioner comprises a cover body 1, an air inlet area 11, an air inlet area 111, an overhauling cover plate 112, a rotating shaft 113, an air inlet connecting area 12, an air outlet connecting area 13, a central area 14, a metal net 2, a water baffle plate 3, a first water baffle plate 31, a first baffle plate 311, a second baffle plate 312, a second water baffle plate 32, a third baffle plate 321, a fourth baffle plate 322, a filter 4, an air duct cover 5, an air outlet 51, a dust cover 52, a centrifugal fan 6 and a rain-proof cap 7.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the following embodiments.
First, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Secondly, the utility model discloses utilize the structure schematic diagram etc. to describe in detail, when detailing the embodiment of the utility model, for the convenience of explanation, the schematic diagram that shows protection level IP 55's cooling fan housing structure can not do local enlargement according to general proportion, moreover the schematic diagram is the example, and it should not limit the scope of the utility model protection here. In addition, the actual fabrication process should include three-dimensional space of length, width and depth.
Example one
Referring to fig. 1 to 3, as shown in fig. 1 to 3, the whole system of the cooling fan housing with the protection level IP55 is composed of a centrifugal fan 6, an air inlet 111 of an air inlet area, a metal mesh 2, a filter 4, a water baffle 3, an access cover 112, a housing frame, an air outlet 51 of an air duct cover, a dust cover 52, a rotating shaft 113, a limiting device (not shown), a temperature measuring sensor (not shown), a junction box (not shown), and the like.
The centrifugal fan 6 is arranged above the cover body 1, and all bolts and gaskets of the cover body 1 are Dacromet standard parts. The cover plate is not frequently detached and directly sealed by sealant. The installation of the upper portion of the cover body 1 and the centrifugal fan 6, the upper side of the centrifugal fan 6 is provided with a rain-proof cap 7. In a state where the access panel 112 is laterally opened, the middle bolt may be screwed from the inside, and after covering the lateral panel, the middle bolt will not contact the outside. The cover body 1 is divided into four air inlet areas 11, two air inlet connection areas 12 and one air outlet connection area 13, the two air inlet connection areas 12 and the air outlet connection area 13 form a central area 14, the four air inlet areas 11 are respectively positioned in front of, behind, on the left of and on the right of the central area 14, each air inlet area 11 is provided with a metal net 2, a water baffle 3 and a filter 4, the metal net 2 is arranged at an air inlet 111 of the air inlet area, the water baffle 3 is arranged above the metal net 2, the filter 4 is arranged above the water baffle 3, the total area of the air inlets 111 of the air inlet areas is about 3 square meters, and the total area of the air inlets 111 of3And calculating the air speed of the air inlet 111 of the air inlet area to be about 3.5m/s by considering that the aperture ratio of the metal mesh 2 is about 80 percent. The filter cotton is selected from coarse cotton filter screen with G3 grade (can filter particles with particle size of more than 0.1 mm), the thickness is about 40mm, the height is 800mm, the wind passing area of the filter cotton is about 5 square meters, the passing wind speed is not less than 1.5m/s, and the maximum wind resistance is 400 Pa; the air outlet of the air inlet area is communicated with the air inlet of the motor to be cooled, the air inlet of the motor to be cooled is positioned in the air inlet connecting area 12, the air outlet of the motor to be cooled is positioned in the air outlet connecting area 13, the air outlet of the motor to be cooled is communicated with the air inlet of the air channel cover 5, and the air outlet of the air channel cover 5 is communicated with the external atmosphere.
The water baffle 3 comprises a plurality of first water baffles 31 and a plurality of second water baffles 32, the plurality of first water baffles 31 are arranged above the metal mesh 2 in parallel, the plurality of second water baffles 32 are arranged above the plurality of first water baffles 31 in parallel, a second water baffle 32 is arranged on a central line between every two adjacent first water baffles 31, each first water baffle 31 is provided with a first blocking piece 311 and a second blocking piece 312, the top of each first blocking piece 311 is connected with the bottom of each second blocking piece 312, each first blocking piece 311 is perpendicular to the ground, an included angle between each first blocking piece 311 and each second blocking piece 312 is 120-degree and 150-degree, each second water baffle 32 is provided with a third blocking piece 321 and a fourth blocking piece 322, the top of each third blocking piece 321 is connected with the bottom of each fourth blocking piece 322, each third blocking piece 321 is perpendicular to the ground, an included angle between each third blocking piece 321 and each fourth blocking piece 322 is 120-degree and 150-degree, and an included angle between each second blocking piece 312 and each fourth blocking piece 322 is 60-120-degree. The horizontal distance between the extension line of the second barrier 312 and the third barrier 321 is 5 mm.
The maintenance cover plate 112 on the side face is provided with an inclination angle of 5 degrees to ensure that rainwater smoothly flows out and does not stay on the upper cover, the maintenance cover plate 112 is made into a flip structure which can be opened, the flip angle is controlled to be about 50 degrees, and parts such as fastening bolts, anti-loosening bolts and the like are opened during maintenance to open the cover plate on the side face and then enter the interior to maintain the filter; the air outlet 51 of the air duct cover can be provided with a blowable dust cover 52, and if the air outlet is closed under the condition of high air flow, an electric control air valve can be adopted.
When the wind shield is in operation, external air enters the shield body 1 from the air inlet 111 of the air inlet area, is firstly filtered once through the metal mesh 2, blocks larger foreign objects outside the shield body 1, and then is turned forwards and backwards through the specially designed water baffle 3, so that the waterproof purpose is achieved, meanwhile, the wind path is reasonably reversed, and the wind path is more uniform and smooth. After passing through the area of the water baffle 3, the airflow continues to flow upwards, and passes through the fine filter 4 to filter the tiny particles, so that the dustproof effect is further achieved. The air passing through the filter 4 cannot cause any damage to the motor to be cooled in the cover 1, and dust is only accumulated at the filter 4 and cannot enter the motor to be cooled. The gas after double filtration enters the interior of the motor to be cooled through the air outlet of the air inlet area, directly transfers the heat of each part to the air, and then is discharged to the external environment by the centrifugal fan 6. When the filter 4 needs to be maintained after operating for a certain time, the bolts on the access cover plate 112 are unscrewed, the access cover plate 112 is opened, and the filter 4 is cleaned or replaced as required.
The above structure operates in use according to the following steps:
1. opening the access panel 112 to check whether the filter 4 is clogged;
2. preliminary wiring, checking whether the wiring of the electric air valve controller and the fan is normal (the centrifugal fan 6 is started, the air valve is opened, the centrifugal fan 6 is closed, and the air valve is closed), and judging whether the direction of rotation of the centrifugal fan 6 is correct;
3. connecting the cover body 1 with a motor to be cooled;
4. closing all the maintenance cover plates 112, and screwing bolts to ensure firm connection;
5. switching on a power supply, and starting an air valve of the centrifugal fan 6;
6. and after the operation is normal, the power supply is turned off and the main machine is operated together.
When the air conditioner is not used, the power supply needs to be turned off, the air outlet is automatically closed by the air valve, and external foreign matters cannot enter the cover body 1; when needing to be overhauled, can fix stair on the maintenance seat, open again and overhaul apron 112 (the stopper plays the safety protection effect), carry out necessary maintenance.
The components of the cooling hood of the above protection class IP55 include, but are not limited to, the above mentioned types.
It should be understood by those skilled in the art that one of the features or objects of the present invention is to:
1. because the external cold air is directly adopted to cool the electrical elements, the heat transfer temperature difference is large, under the condition of the same heat productivity, the required cooling air quantity is less, the heat exchange area is smaller, and the material is greatly saved.
2. Under the same size condition, the main machine can increase the power of the main machine due to better heat exchange effect, thereby achieving the purposes of energy conservation and consumption reduction;
3. two times of air filtration are arranged to ensure that foreign matters are sufficiently filtered and no harmful foreign matters enter the cover body;
4. the water baffles are designed in the opposite directions, so that the water baffle effect is achieved, the airflow is reasonably disturbed, the waterproof effect is enhanced, the turbulence of the airflow is increased, and the heat conduction capability is improved;
5. the air inlet area is all downward and covers the external aids of the electric appliance of the user, so that the water vapor of the foreign objects can not enter the electric appliance from the contact surface;
6, arranging a limiting device on the overhaul cover plate to ensure the safety of personnel;
7. an electric air valve is designed at the air outlet, so that the integral sealing performance and the operation safety are ensured;
8. the interior of the air duct is specially designed, the air at all the air ports is communicated with each other, the air path is more balanced, and no heat transfer dead angle exists.
9. The actual measurement effect of the client is better than the expected value (the actual temperature rise is less than 60K, which means that the client can further increase the power of the host by the top cover with the specification).
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. Protection level IP 55's cooling fan housing, characterized by: the cooling device comprises a cover body, a metal net, a water baffle, a filter, an air duct cover and a centrifugal fan, wherein the centrifugal fan is arranged above the cover body, the cover body is divided into four air inlet areas, two air inlet connecting areas and an air outlet connecting area, the two air inlet connecting areas and the air outlet connecting area form a central area, the four air inlet areas are respectively positioned in the front, the rear, the left and the right of the central area, each air inlet area is provided with the metal net, the water baffle and the filter, the metal net is arranged at an air inlet of the air inlet area, the water baffle is arranged above the metal net, the filter is arranged above the water baffle, an air outlet of the air inlet area is communicated with an air inlet of a motor to be cooled, an air inlet of the motor to be cooled is positioned in the air inlet connecting area, and an air outlet of the, the air outlet of the motor to be cooled is communicated with the air inlet of the air duct cover, and the air outlet of the air duct cover is communicated with the outside atmosphere.
2. The cooling hood of protection class IP55 of claim 1, wherein: the metal mesh has an open porosity of 80%.
3. The cooling hood of protection class IP55 of claim 1, wherein: the water baffles comprise a plurality of first water baffles and a plurality of second water baffles, the plurality of first water baffles are arranged above the metal mesh in parallel, the plurality of second water baffles are arranged above the plurality of first water baffles in parallel, a second water baffle is arranged on a central line between every two adjacent first water baffles, the first water baffle is provided with a first blocking piece and a second blocking piece, the top of the first blocking piece is connected with the bottom of the second blocking piece, the first blocking piece is vertical to the ground, the included angle between the first blocking piece and the second blocking piece is 120-150 degrees, the second water baffle plate is provided with a third baffle plate and a fourth baffle plate, the top of the third baffle plate is connected with the bottom of the fourth baffle plate, the third blocking piece is perpendicular to the ground, the included angle between the third blocking piece and the fourth blocking piece is 150 degrees, and the included angle between the second blocking piece and the fourth blocking piece is 60-120 degrees.
4. The cooling hood of protection class IP55 of claim 3, wherein: and the horizontal distance between the extension line of the second baffle plate and the third baffle plate is 5 mm.
5. The cooling hood of protection class IP55 of claim 1, wherein: the filter is a coarse cotton filter screen with the grade of G3, the filtering particle size of the coarse cotton filter screen is larger than or equal to 0.1mm, the thickness of the coarse cotton filter screen is 40mm, the height of the coarse cotton filter screen is 800mm, and the air passing area of the coarse cotton filter screen is 5 square meters.
6. The cooling hood of protection class IP55 of claim 1, wherein: and a dust cover is arranged at the air outlet of the air duct cover.
7. The cooling hood of protection class IP55 of claim 1, wherein: an air valve is arranged at an air outlet of the air duct cover and electrically connected with the control device.
8. The cooling hood of protection class IP55 of claim 1, wherein: the lateral wall in air inlet district all is equipped with overhauls the apron, overhaul the apron and pass through pivot swing joint with the cover body, it is spacing for 50 degrees to overhaul the open angle of apron.
9. The cooling hood of protection class IP55 of claim 8, wherein: the included angle between the maintenance cover plate and the bottom of the cover body is 85 degrees.
10. The cooling hood of protection class IP55 of claim 1, wherein: a rain-proof cap is arranged above the centrifugal fan.
CN201921507025.5U 2019-09-09 2019-09-09 Cooling fan cover of protection grade IP55 Active CN210380474U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921507025.5U CN210380474U (en) 2019-09-09 2019-09-09 Cooling fan cover of protection grade IP55

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921507025.5U CN210380474U (en) 2019-09-09 2019-09-09 Cooling fan cover of protection grade IP55

Publications (1)

Publication Number Publication Date
CN210380474U true CN210380474U (en) 2020-04-21

Family

ID=70254812

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921507025.5U Active CN210380474U (en) 2019-09-09 2019-09-09 Cooling fan cover of protection grade IP55

Country Status (1)

Country Link
CN (1) CN210380474U (en)

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