CN110416899B - Ventilation rainproof type power box - Google Patents

Ventilation rainproof type power box Download PDF

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Publication number
CN110416899B
CN110416899B CN201910739926.5A CN201910739926A CN110416899B CN 110416899 B CN110416899 B CN 110416899B CN 201910739926 A CN201910739926 A CN 201910739926A CN 110416899 B CN110416899 B CN 110416899B
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CN
China
Prior art keywords
box body
plate
air
wall
hinged
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Expired - Fee Related
Application number
CN201910739926.5A
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Chinese (zh)
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CN110416899A (en
Inventor
岑磊
岑玲
池玉东
王霞
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Hefei Tongyong Power Equipment Co ltd
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Hefei Tongyong Power Equipment Co ltd
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Priority to CN201910739926.5A priority Critical patent/CN110416899B/en
Publication of CN110416899A publication Critical patent/CN110416899A/en
Application granted granted Critical
Publication of CN110416899B publication Critical patent/CN110416899B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a ventilated rainproof power box body, and relates to the technical field of power supplies. The invention comprises a box body, wherein the box body comprises an opposite side plate, and a plurality of first vent holes are uniformly distributed in the side plate; a heat radiation fan is arranged in the box body; the heat dissipation fan is positioned between the two side plates; the inner walls of the side surfaces of the two side plates are respectively hinged with the wind plates through a plurality of hinge rods; a plurality of second ventilation holes are uniformly distributed on the air plate, and the top of the air plate is contacted with the lower surface of the pressing plate. According to the invention, the microprocessor controls the telescopic rod to act by comparing the temperature values of the first temperature sensor and the second temperature sensor, and finally the air plate is raised or lowered to ensure that the first air hole and the second air hole are corresponding or staggered, so that an air channel is formed or not formed by the first air hole, the heat dissipation fan and the second air hole, the rainproof and heat dissipation capabilities of the air plate on the side plate are realized, a good working environment is provided for electronic components in the box body, and the service life and the working performance of the power supply are improved.

Description

Ventilation rainproof type power box
Technical Field
The invention belongs to the technical field of power supplies, and particularly relates to a ventilated rainproof power supply box body.
Background
The power supply box body provides external safety guarantee for electronic components inside the power supply box body; however, the installation environment and the service life of the power supply are different with different places of power supply application; when the power supply box is installed in an external exposed environment, rain can cause short-circuit damage to components inside the power supply box; when the totally-enclosed shell is used, the ventilation performance is guaranteed; when the semi-closed shell is used, the ventilation and rain-sheltering performance of the semi-closed shell is difficult to be taken into consideration; can not provide safety guarantee for the later normal use of people.
Therefore, a ventilation and rainproof power box needs to be researched to improve the ventilation and rainproof performance of the power box and provide a good operation environment for normal operation of electronic components.
Disclosure of Invention
The invention aims to provide a ventilation rainproof type power box body, wherein a microprocessor is used for controlling an expansion link to act by comparing temperature values of a first temperature sensor and a second temperature sensor, and finally a wind plate is lifted or lowered to ensure that a first ventilation hole and a second ventilation hole are corresponding or staggered, so that a wind channel is formed or not formed by the first ventilation hole, a heat dissipation fan and the second ventilation hole, the rainproof and heat dissipation capabilities of the wind plate on a side plate are realized, and the problem that the working performance and the service life of the power are reduced due to poor external installation environment and poor rainproof performance and ventilation capability of the conventional power supply is solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a ventilated rainproof power box body which comprises a box body, wherein the box body comprises opposite side plates, and a plurality of first ventilation holes are uniformly distributed in the side plates; a heat dissipation fan is arranged in the box body;
the heat dissipation fan is positioned between the two side plates; the inner walls of the side surfaces of the two side plates are respectively hinged with the wind plates through a plurality of hinge rods;
a plurality of second ventilation holes are uniformly distributed on the air plate, the top of the air plate is contacted with the lower surface of the pressing plate, and the pressing plate reciprocates under the guiding action of a U-shaped frame fixedly arranged on the inner wall of the top surface of the box body; the upper surface of the pressure plate is in contact with a telescopic rod fixedly arranged on the inner wall of the top surface of the box body;
the telescopic rod drives the air plate to move up and down, and the first vent hole and the second vent hole are corresponding or staggered;
the bottom of the air plate is in contact with the upper surface of the supporting plate; one side edge of the supporting plate is hinged with a group of hinged seats fixedly arranged on the inner wall of the bottom surface of the box body, and a plurality of springs are uniformly arranged between the other side edge of the supporting plate and the inner wall of the bottom surface of the box body;
a first temperature sensor is arranged in the box body, and a second temperature sensor and a rainfall sensor are respectively arranged on the side surface of the box body; the first temperature sensor, the second temperature sensor and the rainfall sensor are respectively electrically connected with the microprocessor, and the microprocessor drives the telescopic rod to act.
Further, a plurality of sleeves are evenly distributed and installed on the inner wall of the side face of the side plate, a plurality of hinged blind holes are formed in the opposite side faces of the wind plate respectively, a hinged rod is installed between each sleeve and each hinged blind hole, and each hinged rod is a concave rod.
Furthermore, the telescopic rod is a hydraulic rod or an electric push rod.
Furthermore, a plurality of springs are uniformly arranged between the side edge of the supporting plate close to the side plate and the inner wall of the bottom surface of the box body, and a plurality of inclined holes are uniformly formed in the bottom of the side plate.
Furthermore, the two U-shaped frames are fixedly installed on the inner wall of the top surface of the box body, a pressing plate penetrates between the two U-shaped frames, the pressing plate is arranged along the length direction of the air plate, and a blocking pin penetrates through the end portion of the pressing plate respectively.
The invention has the following beneficial effects:
1. according to the invention, the microprocessor controls the telescopic rod to act by comparing the temperature values of the first temperature sensor and the second temperature sensor, and finally the air plate is made to ascend or descend to ensure that the first vent hole corresponds to the second vent hole, so that the first vent hole, the heat dissipation fan and the second vent hole form an air channel to dissipate heat for the electronic component; and microprocessor makes the telescopic link action through the data of rainfall inductor to the cooperation of the elasticity through the spring makes and guarantees that first ventilation hole staggers with the second ventilation hole, and the wind channel blocks relatively, realizes the weather ability of aerofoil to the curb plate, and this process can effectually realize intelligent heat dissipation and rain-proof, provides good operational environment for the electronic components of box inside, improves the life and the working property of power.
2. According to the invention, when the wind plate descends, the bottom of the wind plate extrudes the support plate, the support plate is inclined, and due to the gap between the wind plate and the side plate, rainwater at the early stage of raining flows to the outside of the power supply box body along the wind plate through the inclined hole, so that the problem that the rainwater enters the inside of the box body due to the fact that the numerical value detected by the rainfall sensor at the early stage of raining is not enough to drive the telescopic rod to act is effectively solved, and the rainproof capacity of the power supply box body is further improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a ventilated rainproof power box of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of the structure of FIG. 1 at B according to the present invention;
FIG. 4 is a schematic structural view of a platen of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-box body, 2-side plate, 3-heat dissipation fan, 4-hinged rod, 5-air plate, 6-pressing plate, 7-telescopic rod, 8-supporting plate, 9-spring, 101-U-shaped frame, 102-hinged seat, 201-first ventilation hole, 202-inclined hole, 401-second ventilation hole, 501-second ventilation hole and 601-gear pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "on," "below," "upper," "middle," "near," and the like are used for indicating an orientation or positional relationship, and are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-4, the invention relates to a ventilated rainproof power box, which comprises a box body 1, wherein the box body 1 comprises an opposite side plate 2, and a plurality of first ventilation holes 201 are uniformly distributed on the side plate 2; a heat radiation fan 3 is arranged in the box body 1;
the heat dissipation fan 3 is positioned between the two side plates 2; the inner walls of the side surfaces of the two side plates 2 are respectively hinged with the wind plates 5 through a plurality of hinge rods 4;
a plurality of second ventilation holes 501 are uniformly distributed on the air plate 5, the top of the air plate 5 is contacted with the lower surface of the pressing plate 6, and the pressing plate 6 reciprocates under the guiding action of a U-shaped frame 101 fixedly arranged on the inner wall of the top surface of the box body 1; the upper surface of the pressing plate 6 is contacted with an expansion link 7 fixedly arranged on the inner wall of the top surface of the box body 1;
the telescopic rod 7 drives the air plate 5 to move up and down, and the first vent hole 201 corresponds to or is staggered with the second vent hole 501; when the wind plate 5 does not extrude the supporting plate 8, the bottom surface of the wind plate 5 is attached to the supporting plate 8, and the supporting plate 8 is in a slightly inclined state and not completely horizontal even when not bearing the pressure of the wind plate 5, so that rainwater is ensured to fall on the supporting plate 8 along the side surface of the wind plate 5 and finally flows to the outside of the box body 1 from the inclined hole 202.
The bottom of the air plate 5 is contacted with the upper surface of the supporting plate 8; one side edge of the supporting plate 8 is hinged with a group of hinge seats 102 fixedly arranged on the inner wall of the bottom surface of the box body 1, and a plurality of springs 9 are uniformly arranged between the other side edge of the supporting plate 8 and the inner wall of the bottom surface of the box body 1;
a first temperature sensor is arranged in the box body 1, and a second temperature sensor and a rainfall sensor are respectively arranged on the side surface of the box body 1; the first temperature sensor, the second temperature sensor and the rainfall sensor are electrically connected with the microprocessor respectively, and the microprocessor drives the telescopic rod 7 to act.
Wherein, a plurality of sleeves are evenly distributed and installed on the inner wall of the side surface of the side plate 2, a plurality of hinged blind holes are respectively formed in the opposite side surfaces of the wind plate 5, a hinged rod 4 is installed between the sleeves and the hinged blind holes, and the hinged rod 4 is a concave rod.
Wherein, telescopic link 7 is a hydraulic stem or electric putter, and when telescopic link 7 was electric putter, last motor and the microprocessor electric connection of electric putter.
Wherein, a plurality of springs 9 are uniformly arranged between the side edge of the supporting plate 8 close to the side plate 2 and the inner wall of the bottom surface of the box body 1, and a plurality of inclined holes 202 are uniformly arranged at the bottom of the side plate 2.
Wherein, two U type frame 101 fixed mounting have run through between two U type frame 101 and have a clamp plate 6 on the top surface inner wall of box 1, and clamp plate 6 sets up along the length direction of aerofoil 5, and the tip of clamp plate 6 has run through a fender position round pin 601 respectively.
One specific application of this embodiment is:
when the temperature value in the box body 1 detected by the first temperature sensor is smaller than the temperature value of the external environment of the box body 1, the microprocessor does not drive the telescopic rod 7 to act, the first vent hole 201 and the second vent hole 501 are staggered, and no heat dissipation air channel is formed among the first vent hole 201, the heat dissipation fan 3 and the second vent hole 501;
when the temperature value in the box body 1 detected by the first temperature sensor is greater than the temperature value of the external environment of the box body 1, the fact that the electronic components in the power supply generate heat due to operation or environment needs to be radiated is shown; the microprocessor drives the telescopic rod 7 to descend and drives the air plate 5 to descend, the air plate 5 is hinged with the side plate 2 through the hinge rod 4, so that the air plate 5 descends on the basis of the side plate 2, the air plate 5 extrudes the support plate 8 and forces the support plate 8 to incline on the basis of the hinge seat 102, the bottom edge of the inclined support plate 8 corresponds to the inclined hole 202, at the moment, the first vent hole 201 corresponds to the second vent hole 501, and under the action of the heat dissipation fan 3, the first vent hole 201, the heat dissipation fan 3 and the second vent hole 501 form a heat dissipation air channel for dissipating heat of electronic components in the power supply box body so as to ensure the normal work of the power supply; in the initial stage of raining, the rainfall data value detected by the rainfall sensor is not enough to enable the microprocessor to drive the telescopic rod 7 to ascend, so that the first vent holes 201, the radiating fan 3 and the second vent holes 501 form radiating air channels, and because gaps exist between the side plates 2 and the wind plates 5, initial rainwater can obliquely fall from the sky, falls on the wind plates 5 through the first vent holes 201 and flows to the outside through the inclined holes 202 along the wind plates 5; when rainfall increases, rainfall data value that the rainfall inductor will detect sends microprocessor, and microprocessor drive telescopic link 7 rises, no matter whether the temperature value in the box 1 that first temperature sensor detected is greater than the temperature value of box 1 external environment this moment, microprocessor will drive telescopic link 7 and rise, under spring 9's elasticity effect, aerofoil 5 rises, first ventilation hole 201 is staggered mutually with second ventilation hole 501, even the rainwater enters into the clearance between curb plate 2 and the aerofoil 5 through first ventilation hole 201, also will fall into backup pad 8 along aerofoil 5, and follow inclined hole 202 flow direction outside at last.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (4)

1. A ventilation rainproof type power supply box body comprises a box body (1), wherein the box body (1) comprises opposite side plates (2), and a plurality of first ventilation holes (201) are uniformly distributed in the side plates (2); a heat dissipation fan (3) is arranged in the box body (1); the method is characterized in that:
the heat dissipation fan (3) is positioned between the two side plates (2); the inner walls of the side surfaces of the two side plates (2) are respectively hinged with the air plates (5) through a plurality of hinge rods (4);
a plurality of second ventilation holes (501) are uniformly distributed on the air plate (5), the top of the air plate (5) is in contact with the lower surface of the pressing plate (6), and the pressing plate (6) reciprocates under the guiding action of a U-shaped frame (101) fixedly arranged on the inner wall of the top surface of the box body (1); the upper surface of the pressure plate (6) is in contact with a telescopic rod (7) fixedly arranged on the inner wall of the top surface of the box body (1);
the telescopic rod (7) drives the air plate (5) to move up and down, and the first vent hole (201) and the second vent hole (501) correspond or are staggered;
the bottom of the air plate (5) is in contact with the upper surface of the supporting plate (8); one side edge of the supporting plate (8) is hinged with a group of hinge seats (102) fixedly arranged on the inner wall of the bottom surface of the box body (1), and a plurality of springs (9) are uniformly arranged between the other side edge of the supporting plate (8) and the inner wall of the bottom surface of the box body (1);
a first temperature sensor is arranged in the box body (1), and a second temperature sensor and a rainfall sensor are respectively arranged on the side surface of the box body (1); the first temperature sensor, the second temperature sensor and the rainfall sensor are respectively and electrically connected with the microprocessor, and the microprocessor drives the telescopic rod (7) to act;
be close to a plurality of springs (9) are installed to the equipartition between backup pad (8) side of curb plate (2) and the bottom surface inner wall of box (1), just a plurality of inclined holes (202) have been opened to the bottom equipartition of curb plate (2).
2. The ventilated rainproof power box body according to claim 1, wherein a plurality of sleeves are uniformly arranged on the inner wall of the side face of the side plate (2), a plurality of hinged blind holes are respectively formed in one opposite side face of the wind plate (5), a hinged rod (4) is arranged between each sleeve and each hinged blind hole, and each hinged rod (4) is a concave rod.
3. The ventilated rainproof power box body according to claim 1, wherein the telescopic rod (7) is a hydraulic rod or an electric push rod.
4. The ventilated and rainproof power box body as claimed in claim 1, wherein the two U-shaped frames (101) are fixedly installed on the inner wall of the top surface of the box body (1), a pressing plate (6) penetrates between the two U-shaped frames (101), the pressing plate (6) is arranged along the length direction of the wind plate (5), and a stop pin (601) penetrates through the end portions of the pressing plate (6) respectively.
CN201910739926.5A 2019-08-12 2019-08-12 Ventilation rainproof type power box Expired - Fee Related CN110416899B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910739926.5A CN110416899B (en) 2019-08-12 2019-08-12 Ventilation rainproof type power box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910739926.5A CN110416899B (en) 2019-08-12 2019-08-12 Ventilation rainproof type power box

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CN110416899A CN110416899A (en) 2019-11-05
CN110416899B true CN110416899B (en) 2020-12-04

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* Cited by examiner, † Cited by third party
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CN111313269B (en) * 2020-01-17 2021-08-24 安徽明远电力设备制造有限公司 Distribution box
CN111740462A (en) * 2020-06-30 2020-10-02 盐城欢创科技有限公司 Auxiliary power supply device for new energy mobile base station and power supply method thereof
CN112165003A (en) * 2020-10-16 2021-01-01 苏州中康电力运营有限公司 Power station box with good heat dissipation effect
CN112566401B (en) * 2020-10-26 2022-04-12 河南护理职业学院 Computer network control device with good heat dissipation effect and use method thereof
CN117458301B (en) * 2023-10-16 2024-06-21 海变电力设备有限公司 Intelligent solar photovoltaic box-type substation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4871884A (en) * 1987-04-22 1989-10-03 Yazaki Corporation Electrical connecting box
CN204290120U (en) * 2015-01-06 2015-04-22 国家电网公司 A kind of security device environmental management cabinet special
CN108419387A (en) * 2018-02-11 2018-08-17 郑州航空工业管理学院 A kind of data acquisition platform based on information processing
CN108899791A (en) * 2018-09-06 2018-11-27 镇江向荣智能电气有限公司 A kind of heat radiating type power grid power distribution cabinet
CN208691143U (en) * 2018-08-20 2019-04-02 浙江永邦电气有限公司 A kind of air-exchanging structure of frequency converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106898952B (en) * 2017-04-07 2018-07-20 国网山东省电力公司莱芜供电公司 A kind of anti-condensation ring main unit and ring main unit dewing-proof method
CN207021545U (en) * 2017-05-27 2018-02-16 国网河南省电力公司郑州供电公司 A kind of removable outdoor rainproof distribution box
CN207916533U (en) * 2018-03-09 2018-09-28 广州威尔弗汽车用品股份有限公司 A kind of novel waterproof pick up Der Kofferraumdeckel
CN208723368U (en) * 2018-07-17 2019-04-09 苏州阿科拉精密制造有限公司 A kind of distribution box for base station with waterproof and drain function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4871884A (en) * 1987-04-22 1989-10-03 Yazaki Corporation Electrical connecting box
CN204290120U (en) * 2015-01-06 2015-04-22 国家电网公司 A kind of security device environmental management cabinet special
CN108419387A (en) * 2018-02-11 2018-08-17 郑州航空工业管理学院 A kind of data acquisition platform based on information processing
CN208691143U (en) * 2018-08-20 2019-04-02 浙江永邦电气有限公司 A kind of air-exchanging structure of frequency converter
CN108899791A (en) * 2018-09-06 2018-11-27 镇江向荣智能电气有限公司 A kind of heat radiating type power grid power distribution cabinet

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