CN116193842B - Heat abstractor for be used for rack - Google Patents

Heat abstractor for be used for rack Download PDF

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Publication number
CN116193842B
CN116193842B CN202310483159.2A CN202310483159A CN116193842B CN 116193842 B CN116193842 B CN 116193842B CN 202310483159 A CN202310483159 A CN 202310483159A CN 116193842 B CN116193842 B CN 116193842B
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China
Prior art keywords
cabinet
sealing
cabinet body
wall
elastic
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Active
Application number
CN202310483159.2A
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Chinese (zh)
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CN116193842A (en
Inventor
雷志辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Toploong Technology Co ltd
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Shenzhen Toploong Technology Co ltd
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Priority to CN202310483159.2A priority Critical patent/CN116193842B/en
Publication of CN116193842A publication Critical patent/CN116193842A/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The invention provides a heat dissipation device for a cabinet, which belongs to the technical field of cabinets and comprises a cabinet body, a heat dissipation fan, a first sealing component, a second sealing component and an elastic supporting component, wherein one side of the cabinet body is provided with an air outlet, the other side of the cabinet body is provided with an air inlet, the heat dissipation fan is arranged on the inner wall of the cabinet body and used for driving external air to penetrate through the cabinet body from the air inlet and the air outlet, and the first sealing component is movably arranged on the outer wall of the cabinet body and used for sealing the air outlet. Compared with the prior art, the embodiment of the invention can realize the sealing of the heat dissipation opening of the cabinet when the cabinet does not need heat dissipation, thereby preventing external dust and sundries from entering the cabinet, avoiding damaging parts in the cabinet, and realizing the quick opening of the heat dissipation opening of the cabinet when the cabinet needs heat dissipation.

Description

Heat abstractor for be used for rack
Technical Field
The invention belongs to the technical field of cabinets, and particularly relates to a heat dissipation device for a cabinet.
Background
The cabinet is used as a container for accommodating various electrical components, and is widely applied to industries such as computers, data, information, electronics, finance, electric power and the like.
At present, a great amount of heat is inevitably generated when electric elements in the cabinet work, the heat is accumulated in the cabinet, the temperature in the cabinet is easily increased, and the working performance of the electric elements is adversely affected when the temperature in the cabinet is increased, so that heat dissipation treatment is required for the cabinet.
In the prior art, the heat dissipation of the cabinet is mostly carried out by arranging heat dissipation openings on two opposite sides of the cabinet, arranging heat dissipation fans inside the cabinet, and driving external air to penetrate through the cabinet from the heat dissipation openings under the action of negative pressure generated during the operation of the heat dissipation fans so as to take away the heat inside the cabinet, wherein the heat dissipation openings on the side wall of the existing cabinet are mostly in a normally open state, and the heat dissipation of the cabinet is not carried out at any time, so that when the inside of the cabinet does not need to be dissipated, external dust and sundries easily enter the cabinet from the heat dissipation openings, and the electrical components inside the cabinet are damaged by dust.
Disclosure of Invention
In view of the foregoing deficiencies of the prior art, an embodiment of the present invention is to provide a heat dissipating device for a cabinet.
In order to solve the technical problems, the invention provides the following technical scheme:
a heat dissipating device for a cabinet comprises a cabinet body, a heat dissipating fan, a first sealing component, a second sealing component and an elastic supporting component,
one side of the cabinet body is provided with an exhaust port, the other side is provided with an air inlet,
the heat radiation fan is arranged on the inner wall of the cabinet body and used for driving the outside air to penetrate through the cabinet body from the air inlet and the air outlet,
the first sealing component is movably arranged on the outer wall of the cabinet body and is used for sealing the exhaust port,
the second sealing component and the elastic supporting component are arranged inside the cabinet body, and the elastic supporting component is used for providing elastic support for the second sealing component so as to drive the second sealing component to be attached to the inner wall of the cabinet body and seal the air inlet.
As a further improvement of the invention: the first seal assembly includes a first seal plate and a first resilient member,
one end of the first sealing plate is hinged with the outer wall of the cabinet body, one end of the first elastic piece is connected with the inner wall of the exhaust port, and the other end of the first elastic piece is connected with the first sealing plate and used for providing elastic tension for the first sealing plate.
As a further improvement of the invention: the inner wall of the cabinet body is fixedly provided with a fixing plate which is positioned in the middle of the air inlet,
the second seal assembly includes two sets of second seal plates,
the two groups of second sealing plates are respectively hinged on the upper side and the lower side of the fixed plate,
the elastic supporting component comprises a supporting rod, a sliding sleeve, a third elastic piece and a positioning rod,
one end of the positioning rod is fixedly connected with the fixed plate, the other end of the positioning rod is fixedly provided with an end block, the sliding sleeve is movably sleeved outside the positioning rod, one end of the third elastic piece is connected with the sliding sleeve, the other end of the third elastic piece is connected with the end block and is used for providing elastic support for the sliding sleeve,
the stay bars are provided with two groups, one end of each stay bar is hinged with the sliding sleeve, and the other end of each stay bar is hinged with the two groups of second sealing plates.
As a further improvement of the invention: two sets of second closing plate keep away from the breach has all been seted up to one side of fixed plate, the breach internal rotation is provided with the guide plate, the guide plate with still link to each other through the second elastic component between the breach inner wall, the second elastic component is used for right the guide plate provides elastic support.
As a still further improvement of the invention: the side wall of the guide plate is rotationally connected with the inner wall of the notch through a rotating shaft.
As a still further improvement of the invention: the guide plate is provided with a plurality of through holes which are uniformly distributed.
As a still further improvement of the invention: the first elastic piece, the second elastic piece and the third elastic piece are springs or metal elastic pieces.
Compared with the prior art, the invention has the beneficial effects that:
in the embodiment of the invention, when the cabinet does not need to radiate heat, the first sealing component is attached to the outer wall of the cabinet body to seal the exhaust port, and meanwhile, the elastic supporting component provides elastic support for the second sealing component to drive the second sealing component to be attached to the inner wall of the cabinet body so as to seal the air inlet, thereby preventing external dust and sundries from entering the interior of the cabinet body from the air inlet and the exhaust port to damage parts in the cabinet body; when the cabinet needs to dispel the heat, start the radiator fan, the radiator fan during operation can cause the internal and external pressure variation of cabinet, make first seal assembly remove in the external wall of cabinet relatively, in order to remove the shutoff to the gas vent, make the second seal assembly overcome the support effect of elastic support assembly at the internal portion removal of cabinet simultaneously, in order to remove the shutoff to the air inlet, external air can get into the internal portion of cabinet from the air inlet this moment, be discharged by the gas vent again, realize the internal ventilation and heat dissipation of cabinet, compare in prior art, when the cabinet does not need to dispel the heat, can realize the closure of cabinet thermovent, and then prevent external dust debris to get into the cabinet inside, avoid causing the damage of the inside spare part of cabinet, when the cabinet needs to dispel the heat, can realize the quick opening of cabinet thermovent, have the radiating effect good and dustproof effectual advantage.
Drawings
FIG. 1 is a schematic diagram of a heat dissipating device for a cabinet;
FIG. 2 is a schematic diagram of a second seal assembly for a heat sink of a cabinet;
FIG. 3 is an enlarged schematic view of area A of FIG. 1;
FIG. 4 is an enlarged schematic view of area B of FIG. 1;
in the figure: 10-cabinet, 101-exhaust port, 102-air inlet, 103-fixed plate, 20-heat radiation fan, 30-first seal assembly, 301-first sealing plate, 302-first elastic piece, 40-second seal assembly, 401-second sealing plate, 402-notch, 403-second elastic piece, 404-deflector, 405-through hole, 406-rotating shaft, 50-elastic support assembly, 501-stay bar, 502-sliding sleeve, 503-third elastic piece, 504-end block and 505-positioning rod.
Detailed Description
The technical scheme of the present application will be described in further detail with reference to the specific embodiments.
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
Referring to fig. 1, the present embodiment provides a heat dissipating device for a cabinet, including a cabinet body 10, a heat dissipating fan 20, a first sealing assembly 30, a second sealing assembly 40 and an elastic supporting assembly 50, wherein an air outlet 101 is provided on one side of the cabinet body 10, an air inlet 102 is provided on the other side of the cabinet body, the heat dissipating fan 20 is mounted on an inner wall of the cabinet body 10, and is used for driving external air to penetrate through the cabinet body 10 from the air inlet 102 and the air outlet 101, the first sealing assembly 30 is movably disposed on an outer wall of the cabinet body 10, and is used for sealing the air outlet 101, the second sealing assembly 40 and the elastic supporting assembly 50 are disposed inside the cabinet body 10, and the elastic supporting assembly 50 is used for providing elastic support for the second sealing assembly 40, so as to drive the second sealing assembly 40 to be attached to the inner wall of the cabinet body 10, and seal the air inlet 102.
When the cabinet does not need to radiate heat, the first sealing component 30 is attached to the outer wall of the cabinet body 10 to seal the air outlet 101, and meanwhile, the elastic support component 50 provides elastic support for the second sealing component 40 to drive the second sealing component 40 to attach to the inner wall of the cabinet body 10 so as to seal the air inlet 102, thereby preventing external dust and sundries from entering the cabinet body 10 from the air inlet 102 and the air outlet 101 and damaging parts in the cabinet body 10; when the cabinet needs to dissipate heat, the heat dissipation fan 20 is started, the heat dissipation fan 20 can cause the internal and external pressure change of the cabinet body 10 during operation, so that the first sealing assembly 30 moves relative to the outer wall of the cabinet body 10 to relieve the blocking of the exhaust port 101, and meanwhile, the second sealing assembly 40 overcomes the supporting effect of the elastic supporting assembly 50 to move inside the cabinet body 10 to relieve the blocking of the air inlet 102, at the moment, external air can enter the cabinet body 10 from the air inlet 102 and is exhausted through the exhaust port 101, and ventilation and heat dissipation inside the cabinet body 10 are realized.
Referring to fig. 1, in one embodiment, the first sealing assembly 30 includes a first sealing plate 301 and a first elastic member 302, one end of the first sealing plate 301 is hinged to the outer wall of the cabinet 10, one end of the first elastic member 302 is connected to the inner wall of the air outlet 101, and the other end of the first elastic member is connected to the first sealing plate 301, so as to provide elastic tension to the first sealing plate 301, so that when the heat dissipating fan 20 is not opened, the first sealing plate 301 is attached to the outer wall of the cabinet 10, and further seals the air outlet 101, thereby preventing external dust and sundries from entering the cabinet 10 from the air outlet 101.
Referring to fig. 2 and 4, in one embodiment, a fixing plate 103 is fixedly disposed on an inner wall of the cabinet 10, the fixing plate 103 is located at a middle position of the air inlet 102, the second sealing assembly 40 includes two sets of second sealing plates 401, the two sets of second sealing plates 401 are respectively hinged on upper and lower sides of the fixing plate 103, the elastic supporting assembly 50 includes a supporting rod 501, a sliding sleeve 502, a third elastic member 503 and a positioning rod 505, one end of the positioning rod 505 is fixedly connected with the fixing plate 103, the other end of the positioning rod 505 is fixedly provided with an end block 504, the sliding sleeve 502 is movably sleeved outside the positioning rod 505, one end of the third elastic member 503 is connected with the sliding sleeve 502, the other end of the third elastic member is connected with the end block 504, and is used for providing elastic support for the sliding sleeve 502, the supporting rod 501 is provided with two sets, one ends of the two sets of supporting rods 501 are both hinged with the sliding sleeve 502, and the other ends of the supporting rods are respectively hinged with the two sets of second sealing plates 401.
When the heat radiation fan 20 is not started, the third elastic piece 503 provides elastic support for the sliding sleeve 502, and the elastic support force is respectively applied to the two groups of second sealing plates 401 through the two groups of supporting rods 501, so that the two groups of second sealing plates 401 are pressed on the inner wall of the cabinet 10 to be matched with the fixing plate 103 to seal the air inlet 102, and external dust and sundries are prevented from entering the cabinet 10 from the air inlet 102; when the heat dissipation fan 20 works, the external air pushes the two groups of second sealing plates 401 to rotate towards the inner side of the cabinet 10 compared with the fixed plate 103, so that the blocking state of the air inlet 102 is relieved, the external air enters the cabinet 10 from the air inlet 102 and pushes the first sealing plate 301 to rotate towards the outer side of the cabinet 10 through the suction effect of the heat dissipation fan 20, and then the external air is discharged from the air outlet 101, in the process, the external air penetrates through the cabinet 10 from the air inlet 102 and the air outlet 101 to take away the heat in the cabinet 10, and ventilation and heat dissipation of the cabinet 10 are realized; when the two sets of second sealing plates 401 rotate compared with the fixed plate 103, the sliding sleeve 502 can be driven by the two sets of supporting rods 501 to slide compared with the positioning rod 505, the third elastic piece 503 is compressed under force, after the third elastic piece 503 is compressed to a certain limit, the elastic supporting force of the third elastic piece 503 on the two sets of second sealing plates 401 is the same as the thrust of the outside air on the two sets of second sealing plates 401, at the moment, the two sets of second sealing plates 401 are maintained at corresponding angles, the air entering the cabinet 10 from the air inlet 102 is divided into an upper part and a lower part by the two sets of second sealing plates 401, the upper air flow is guided to the top area inside the cabinet 10 by the upper second sealing plate 401, and the lower air flow is guided to the bottom area inside the cabinet 10 by the lower second sealing plate 401, so that the space when the air enters the cabinet 10 can be increased, and the heat dissipation effect of the cabinet 10 is improved; after the heat dissipation is completed, the heat dissipation fan 20 stops working, the first elastic member 302 pulls the first sealing plate 301 to reversely rotate to reseal the air outlet 101, and meanwhile, the third elastic member 503 pushes the sliding sleeve 502 to reversely slide compared with the positioning rod 505, so that the two groups of supporting rods 501 drive the two groups of second sealing plates 401 to reversely rotate to reseal the air inlet 102.
Referring to fig. 2 and fig. 4, in one embodiment, two sets of second sealing plates 401 are provided with notches 402 on a side away from the fixing plate 103, a baffle 404 is rotatably disposed in the notches 402, the baffle 404 is further connected with an inner wall of the notch 402 through a second elastic member 403, and the second elastic member 403 is used for providing elastic support for the baffle 404.
When the second sealing plate 401 rotates towards the inner side of the cabinet 10, the elastic supporting function of the second elastic piece 403 on the guide plate 404 pushes the guide plate 404 to rotate, so that a T-shaped structure is formed between the guide plate 404 and the second sealing plate 401, at the moment, the outside air is guided to one side of the guide plate 404 through the second sealing plate 401, and because the T-shaped structure is formed between the guide plate 404 and the second sealing plate 401, when the air flow acts on one side of the guide plate 404, the air flow can be blocked by the guide plate 404, and then passes over from the edge of the guide plate 404 and acts on the top area and the bottom area of the inner side of the cabinet 10, thereby further increasing the space of the air flow acting on the top area and the bottom area of the inner side of the cabinet 10, and further improving the heat dissipation effect of the inner area of the cabinet 10; when the two sets of second sealing plates 401 reversely rotate compared with the fixing plate 103, one end of the guide plate 404 acts on the inner wall of the cabinet 10, and then the second elastic members 403 are compressed under force compared with the rotation of the second sealing plates 401, and when the second sealing plates 401 are attached to the inner wall of the cabinet 10 again, the guide plate 404 is accommodated in the notch 402 and is attached to the inner wall of the cabinet 10 synchronously.
Referring to fig. 4, in one embodiment, the side wall of the baffle 404 is rotatably connected to the inner wall of the notch 402 through a rotation shaft 406, and a plurality of through holes 405 are uniformly distributed on the baffle 404.
When the air flow is guided to one side of the deflector 404 by the second sealing plate 401, a part of the air flow passes through the edge of the second sealing plate 401 and enters the top and bottom areas of the inner side of the cabinet 10, and another part of the air flow directly passes through the through holes 405 and enters the top and bottom areas of the inner side of the cabinet 10, so that the space of the air flow acting on the top and bottom areas of the inner side of the cabinet 10 can be further increased, the heat dissipation effect of the inner side area of the cabinet 10 can be further improved, and when the air flow acts on one side of the deflector 404, the deflector 404 can reciprocate compared with the rotating shaft 406 by matching with the elastic supporting effect of the second elastic piece 403, and when the rotating shaft 406 reciprocates, the air flow output by the through holes 405 can form a wind sweeping effect to convey the air flow to different positions of the top and bottom areas of the inner side of the cabinet 10, so that dead angles are eliminated, and the heat dissipation effect is improved.
In one embodiment, the first elastic member 302, the second elastic member 403, and the third elastic member 503 may be springs, or metal elastic sheets, which are not limited herein.
In the embodiment of the invention, when the cabinet does not need to radiate heat, the first sealing component 30 is attached to the outer wall of the cabinet body 10 to seal the air outlet 101, and meanwhile, the elastic supporting component 50 provides elastic support for the second sealing component 40 to drive the second sealing component 40 to be attached to the inner wall of the cabinet body 10 to seal the air inlet 102, so that external dust and sundries are prevented from entering the cabinet body 10 from the air inlet 102 and the air outlet 101, and parts inside the cabinet body 10 are prevented from being damaged; when the cabinet needs to dispel the heat, start the cooling fan 20, the cooling fan 20 during operation can cause the internal and external pressure variation of cabinet body 10, make first seal assembly 30 remove in cabinet body 10 outer wall, with the shutoff to gas vent 101, make simultaneously second seal assembly 40 overcome the supporting role of elastic support assembly 50 and remove in cabinet body 10 inside, with the shutoff to gas inlet 102, outside air can get into cabinet body 10 from gas inlet 102 this moment inside, again by gas vent 101 discharge, realize the ventilation and heat dissipation of cabinet body 10 inside, compare in prior art, can realize the closure of cabinet thermovent when the cabinet does not need to dispel the heat, and then prevent outside dust debris entering cabinet inside, avoid causing the damage of cabinet inside spare part, when the cabinet needs to dispel the heat, can realize the quick opening of cabinet thermovent, have the radiating effect good and dustproof effectual advantage.
While the preferred embodiments of the present application have been described in detail, the present application is not limited to the above embodiments, and various changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims (5)

1. A heat dissipating device for a cabinet is characterized by comprising a cabinet body, a heat dissipating fan, a first sealing component, a second sealing component and an elastic supporting component,
one side of the cabinet body is provided with an exhaust port, the other side is provided with an air inlet,
the heat radiation fan is arranged on the inner wall of the cabinet body and used for driving the outside air to penetrate through the cabinet body from the air inlet and the air outlet,
the first sealing component is movably arranged on the outer wall of the cabinet body and is used for sealing the exhaust port,
the second sealing component and the elastic supporting component are arranged in the cabinet body, the elastic supporting component is used for providing elastic support for the second sealing component so as to drive the second sealing component to be attached to the inner wall of the cabinet body to seal the air inlet,
the first seal assembly includes a first seal plate and a first resilient member,
one end of the first sealing plate is hinged with the outer wall of the cabinet body, one end of the first elastic piece is connected with the inner wall of the exhaust port, the other end of the first elastic piece is connected with the first sealing plate and is used for providing elastic tension for the first sealing plate,
the inner wall of the cabinet body is fixedly provided with a fixing plate which is positioned in the middle of the air inlet,
the second seal assembly includes two sets of second seal plates,
the two groups of second sealing plates are respectively hinged on the upper side and the lower side of the fixed plate,
the elastic supporting component comprises a supporting rod, a sliding sleeve, a third elastic piece and a positioning rod,
one end of the positioning rod is fixedly connected with the fixed plate, the other end of the positioning rod is fixedly provided with an end block, the sliding sleeve is movably sleeved outside the positioning rod, one end of the third elastic piece is connected with the sliding sleeve, the other end of the third elastic piece is connected with the end block and is used for providing elastic support for the sliding sleeve,
the stay bars are provided with two groups, one end of each stay bar is hinged with the sliding sleeve, and the other end of each stay bar is hinged with the two groups of second sealing plates.
2. The heat dissipating device for a cabinet of claim 1, wherein two sets of second sealing plates are provided with notches on a side away from the fixing plate, a baffle is rotatably disposed in the notches, the baffle is further connected with an inner wall of the notch through a second elastic member, and the second elastic member is used for providing elastic support for the baffle.
3. The heat dissipating apparatus for a cabinet of claim 2, wherein the baffle side wall is rotatably connected to the notch inner wall by a rotation shaft.
4. The heat dissipating apparatus for a cabinet of claim 2, wherein the baffle has a plurality of evenly distributed through holes.
5. The heat dissipating device for a cabinet of claim 2, wherein the first elastic member, the second elastic member, and the third elastic member are springs or metal spring plates.
CN202310483159.2A 2023-05-04 2023-05-04 Heat abstractor for be used for rack Active CN116193842B (en)

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Application Number Priority Date Filing Date Title
CN202310483159.2A CN116193842B (en) 2023-05-04 2023-05-04 Heat abstractor for be used for rack

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Application Number Priority Date Filing Date Title
CN202310483159.2A CN116193842B (en) 2023-05-04 2023-05-04 Heat abstractor for be used for rack

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CN116193842A CN116193842A (en) 2023-05-30
CN116193842B true CN116193842B (en) 2023-07-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117238613B (en) * 2023-11-16 2024-01-19 国网山东省电力公司德州供电公司 Transformer with dampproof structure
CN117440667B (en) * 2023-12-20 2024-03-19 深圳拓普龙科技有限公司 A ventilation heat abstractor for communication rack

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CN104080300B (en) * 2014-07-03 2017-01-04 宁波天韵通信设备有限公司 A kind of moistureproof communication outdoor cabinet
CN209298654U (en) * 2018-12-20 2019-08-23 刘天成 A kind of automatic temperature-controlled distribution box
CN211907989U (en) * 2020-02-24 2020-11-10 国网黑龙江省电力有限公司黑河供电公司 Dustproof effectual outdoor electric power cabinet
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