CN110112659B - Electronic equipment switch cabinet - Google Patents

Electronic equipment switch cabinet Download PDF

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Publication number
CN110112659B
CN110112659B CN201910490447.4A CN201910490447A CN110112659B CN 110112659 B CN110112659 B CN 110112659B CN 201910490447 A CN201910490447 A CN 201910490447A CN 110112659 B CN110112659 B CN 110112659B
Authority
CN
China
Prior art keywords
cabinet
sliding block
hole
chain
sliding groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910490447.4A
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Chinese (zh)
Other versions
CN110112659A (en
Inventor
游波
陈康
蔡小波
蔡文
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.)
Huaxiang Xiangneng Technology Co Ltd
Original Assignee
Huaxiang Xiangneng Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaxiang Xiangneng Technology Co Ltd filed Critical Huaxiang Xiangneng Technology Co Ltd
Priority to CN201910490447.4A priority Critical patent/CN110112659B/en
Publication of CN110112659A publication Critical patent/CN110112659A/en
Application granted granted Critical
Publication of CN110112659B publication Critical patent/CN110112659B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • 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
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor

Abstract

The invention relates to an electronic equipment switch cabinet which comprises a cabinet body, a carbon dioxide tank, a connecting pipe, a mechanical part and an electrical part, wherein ventilation holes are formed in two sides of the cabinet body; the mechanical part comprises a left sliding groove, a right sliding groove, a guide wheel, a chain, a left sliding block and a right sliding block, the guide wheel is connected with the cabinet body through an adjusting block, an installation screw hole and an adjusting screw hole are formed in the bottom of the left sliding groove, an installation screw and an adjusting screw hole are formed in the installation screw hole and the adjusting screw hole, the chain is connected with the left sliding block and the right sliding block, the chain is connected with the chain wheel and the guide wheel in a matched mode, a thermosensitive element is arranged between the left sliding block and the adjusting screw, a trigger rod is arranged below the left sliding block, the mass of the left sliding block is larger than that of the right sliding block; the electric part comprises a smoke sensor, a temperature sensor, an electromagnetic valve, a motor and a control panel. The double-fire-condition trigger device is used for preventing the electrical cabinet from firing and damaging the whole circuit.

Description

Electronic equipment switch cabinet
Technical Field
The invention relates to the field of switch cabinets, in particular to a switch cabinet of electronic equipment.
Background
The switch cabinet is used as common equipment of an electric power department, and mainly has the main functions of opening, closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of an electric power system, parts in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like, the safety of the equipment has great influence on other electric power facilities of the electric power department, and the electric power switch cabinet has more circuits due to complex circuits. The electronic equipment switch cabinet is easy to heat and even generates fire, most of the electronic equipment switch cabinets used at present are single-trigger mechanisms, and the stability and the reliability are not high.
Disclosure of Invention
The invention aims to improve and innovate the defects and problems in the prior art and provides an electronic equipment switch cabinet.
The technical scheme is that the electronic equipment switch cabinet is constructed and comprises a cabinet body, a carbon dioxide tank, a connecting pipe, a mechanical part and an electrical part, wherein the carbon dioxide tank is arranged on one side of the cabinet body and is communicated with the cabinet body through the connecting pipe, and ventilation holes are formed in two sides of the cabinet body;
the mechanical part comprises a left sliding groove, a right sliding groove, a guide wheel, a chain, a left sliding block and a right sliding block, wherein the left sliding groove and the right sliding groove are respectively arranged on the inner side wall of the cabinet body corresponding to the positions of the ventilation holes on the two sides, the chain wheel is arranged above the left sliding groove, the guide wheel is connected with the cabinet body through an adjusting block, an installation screw hole and an adjusting screw hole are formed in the bottom of the left sliding groove, an installation screw and an adjusting screw hole are respectively arranged in the installation screw hole and the adjusting screw hole, the left sliding block and the right sliding block are respectively arranged in the left sliding groove and the right sliding groove, one end of the chain is connected with the left sliding block, the other end of the chain is connected with the right sliding block, the chain is connected with the chain wheel and the guide wheel in a matched manner, a thermosensitive element is arranged between the left sliding block and the adjusting screw, a trigger rod, through holes matched with the vent holes are formed in the left sliding block and the right sliding block;
the electric part comprises a smoke inductor, a temperature inductor, an electromagnetic valve, a motor and a control panel, wherein the smoke inductor and the temperature inductor are arranged in the cabinet body, the chain wheel is arranged on an output shaft of the motor, and the electromagnetic valve is connected with the connecting pipe.
In one embodiment, the adjusting block is provided with an adjusting hole, a guide shaft is arranged in the adjusting hole, one end of the guide shaft is connected with the guide wheel through a bearing, the other end of the guide shaft is provided with a thread, and the thread is matched with a nut to adjust and fix the guide shaft in the adjusting hole.
In one embodiment, the thermosensitive element comprises a glass tube and an organic material liquid with a high thermal expansion coefficient, which is arranged in the glass tube.
In one embodiment, the cabinet body is provided with an observation hole, and heat-proof glass is arranged in the observation hole.
In one embodiment, a manual switch valve is arranged on the connecting pipe.
In one embodiment, the cabinet body is provided with an exhaust pipe, the exhaust pipe is communicated with the inside of the cabinet body, and a whistle is arranged at the outlet of the exhaust pipe.
In one embodiment, the left slider is provided with an upper positioning hole matched with the heat-sensitive element, and the lower end of the screw rod of the adjusting screw is provided with a lower positioning hole matched with the heat-sensitive element.
In one embodiment, the use and installation method comprises the following steps:
A. respectively placing the left sliding block and the right sliding block into the left sliding chute and the right sliding chute;
B. adjusting a mounting screw to match the through hole on the left sliding block with the ventilation hole on the cabinet body;
C. matching the connecting chain with the chain wheel and the guide wheel and connecting the connecting chain with the right sliding block;
E. the position of the guide wheel is adjusted to ensure that the through hole on the right slide block is matched with the ventilation hole on the cabinet body;
D. and placing the thermosensitive element on the lower positioning hole, adjusting the adjusting screw to match the thermosensitive element with the upper positioning hole, and then taking down the mounting screw.
The invention has the advantages and beneficial effects that:
the electric cabinet is provided with an electric part and a mechanical part which form two independent fire triggering parts, the electric part is used for detecting through the arranged smoke sensor and the arranged temperature sensor, when the electric cabinet is triggered, the electromagnetic valve is opened, carbon dioxide enters the cabinet body, meanwhile, the motor drives the chain through the chain wheel to drive the left slide block and the right slide block to block the ventilation holes on the two sides of the cabinet body, when the electric sensor fails, the thermosensitive element is damaged, the left slide block and the right slide block move to block the ventilation holes on the two sides of the cabinet body under the action of gravity, the triggering rod below the left slide block is matched with the electromagnetic valve to open the electromagnetic valve, and the carbon dioxide enters the cabinet body to extinguish a fire, so that the electric cabinet has quick response of the electric part, and meanwhile, the stability and the reliability of the mechanical part are.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
3 fig. 3 2 3 is 3 a 3 schematic 3 sectional 3 view 3 at 3 a 3- 3 a 3 in 3 fig. 31 3. 3
Fig. 3 is a top cross-sectional view of the chamber of fig. 1.
Fig. 4 is a schematic sectional structure view of the adjustment block.
Description of the figures: 1. the cabinet body, 2, carbon dioxide jar, 3, the connecting pipe, 4, the ventilation hole, 5, left spout, 6, right spout, 7, the leading wheel, 8, the sprocket, 9, the chain, 10, left slider, 11, right slider, 12, the regulating block, 13, the installation screw, 14, adjust the screw, 15, the installation screw, 16, adjusting screw, 17, the heat-sensitive element, 18, the trigger bar, 19, the through-hole, 20, the smoke inductor, 21, the temperature-sensing ware, 22, the solenoid valve, 23, the motor, 24, control panel, 25, adjusting hole, 26, guiding axle, 27, the nut, 28, the glass pipe, 29, observe the hole, 30, manual switch valve, 31, blast pipe.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1-4, the electronic equipment switch cabinet comprises a cabinet body 1, a carbon dioxide tank 2, a connecting pipe 3, a mechanical part and an electrical part, wherein the carbon dioxide tank 2 is arranged on one side of the cabinet body 1, the carbon dioxide tank 2 is communicated with the cabinet body 1 through the connecting pipe 3, and ventilation holes 4 are arranged on two sides of the cabinet body 1;
the mechanical part comprises a left sliding groove 5, a right sliding groove 6, a guide wheel 7, a chain wheel 8, a chain 9, a left sliding block 10 and a right sliding block 11, the left sliding groove 5 and the right sliding groove 6 are respectively arranged on the inner side wall of the cabinet body 1 corresponding to the positions of the vent holes 4 on the two sides, the chain wheel 8 is arranged above the left sliding groove 5, the guide wheel 7 is connected with the cabinet body 1 through an adjusting block 12, the bottom of the left sliding groove 5 is provided with an installation screw hole 13 and an adjusting screw hole 14, the installation screw hole 13 and the adjusting screw hole 14 are respectively internally provided with an installation screw 15 and an adjusting screw 16, the left sliding block 10 and the right sliding block 11 are respectively arranged in the left sliding groove 5 and the right sliding groove 6, one end of the chain 9 is connected with the left sliding block 10, the other end of the chain 9 is connected with the right sliding block 11, the chain 9 is connected with the chain wheel 8 and the guide wheel 7 in a matching manner, and a heat, a trigger rod 18 is arranged below the left slide block 10, the mass of the left slide block 10 is larger than that of the right slide block 11, and through holes 19 matched with the ventilation holes 4 are formed in the left slide block 10 and the right slide block 11;
the electric part comprises a smoke sensor 20, a temperature sensor 21, an electromagnetic valve 22, a motor 23 and a control panel 24, wherein the smoke sensor 20 and the temperature sensor 21 are arranged in the cabinet body 1, the chain wheel 8 is arranged on an output shaft of the motor 23, and the electromagnetic valve 22 is connected with the connecting pipe 3.
Specifically, as shown in fig. 1 and 4, an adjusting hole 25 is formed in the adjusting block 12, a guide shaft 26 is arranged in the adjusting hole 25, one end of the guide shaft 26 is connected with the guide wheel 7 through a bearing, a thread is arranged at the other end of the guide shaft 26, and the thread is matched with a nut 27 to adjust and fix the guide shaft 26 in the adjusting hole 25.
Specifically, as shown in fig. 1, the heat sensitive element 17 includes a glass tube 28 and an organic material liquid having a high thermal expansion coefficient provided in the glass tube 28.
Specifically, as shown in fig. 3, the cabinet body is provided with an observation hole 29, and heat-proof glass is installed in the observation hole 29. Used for observing, whether the fire extinguishes, prevent to open the cabinet door, the air inflow produces the detonation.
Specifically, as shown in fig. 1, a manual switching valve 30 is provided on the connection pipe. The connecting tube is cut off after the fire is extinguished.
Specifically, as shown in fig. 1, an exhaust pipe 31 is arranged on the cabinet body, the exhaust pipe 31 is communicated with the inside of the cabinet body 1, and a whistle is arranged at an outlet of the exhaust pipe 31. After the fire extinguishing device is started, the whistle head gives out alarm sound.
Specifically, as shown in fig. 1 and 2, the left slider 10 is provided with an upper positioning hole matched with the thermal sensitive element 17, and the lower end of the screw rod of the adjusting screw 16 is provided with a lower positioning hole matched with the thermal sensitive element 17. Fixing the thermosensitive element to stabilize the position of the thermosensitive element.
Specifically, as shown in fig. 1, the use and installation method includes the following steps:
A. a left slide block 10 and a right slide block 11 are respectively placed in the left slide groove 5 and the right slide groove 6;
B. the through hole 19 on the left slide block 10 is matched with the ventilation hole 4 on the cabinet body 1 by adjusting the mounting screw 15;
C. a connecting chain 9 is matched with the chain wheel 8 and the guide wheel 7 and is connected with a right sliding block 11;
E. the position of the guide wheel 7 is adjusted to ensure that the through hole 19 on the right slide block 11 is matched with the ventilation hole 4 on the cabinet body 1;
D. the heat-sensitive element 17 is placed on the lower positioning hole, the adjusting screw 16 is adjusted to match the heat-sensitive element 17 with the upper positioning hole, and then the mounting screw 15 is removed.
During the working process, the triggering temperature of the electric triggering part is lower than that of the thermosensitive element, the electric part is detected by the arranged smoke sensor and the temperature sensor, when the temperature in the cabinet body reaches the electric trigger temperature, the electromagnetic valve is opened, carbon dioxide gas enters the cabinet body, meanwhile, the motor drives the chain through the chain wheel to drive the left slide block and the right slide block to block the ventilation holes at the two sides of the cabinet body, when the electric sensor fails, the thermosensitive element is damaged, the left slide block and the right slide block move to block the ventilation holes at the two sides of the cabinet body under the action of gravity, the trigger rod under the left slide block is matched with the electromagnetic valve to open the electromagnetic valve, carbon dioxide gas enters the cabinet body to extinguish fire, so that the cabinet body has quick response of an electric part, meanwhile, the stability and the reliability of a mechanical part are also realized, and the electric cabinet is prevented from being ignited and damaging the whole circuit by double guarantee. After the compressed carbon dioxide gas enters the cabinet body, the pressure in the cabinet body is increased, the gas in the cabinet body is discharged by the exhaust pipe, the gas flows through the whistle head to generate alarm sound, a person on duty can observe whether the fire source is extinguished through the observation hole after arriving, after the fire source is extinguished, the connecting pipe is disconnected through the manual switch valve, and then the cabinet door is opened for processing.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.

Claims (8)

1. An electronic equipment switch cabinet is characterized by comprising a cabinet body (1), a carbon dioxide tank (2), a connecting pipe (3), a mechanical part and an electrical part, wherein the carbon dioxide tank (2) is arranged on one side of the cabinet body (1), the carbon dioxide tank (2) is communicated with the cabinet body (1) through the connecting pipe (3), and ventilation holes (4) are formed in two sides of the cabinet body (1);
the mechanical part comprises a left sliding groove (5), a right sliding groove (6), a guide wheel (7), a chain wheel (8), a chain (9), a left sliding block (10) and a right sliding block (11), the left sliding groove (5) and the right sliding groove (6) are respectively arranged on the inner side wall of the cabinet body (1) corresponding to the positions of the ventilation holes (4) at the two sides, the chain wheel (8) is arranged above the left sliding groove (5), the guide wheel (7) is connected with the cabinet body (1) through an adjusting block (12), the bottom of the left sliding groove (5) is provided with an installation screw hole (13) and an adjusting screw hole (14), the installation screw hole (13) and the adjusting screw hole (14) are respectively internally provided with an installation screw (15) and an adjusting screw (16), the left sliding block (10) and the right sliding block (11) are respectively arranged in the left sliding groove (5) and the right sliding groove (6), one end of the chain (9) is connected with the left sliding block (10), the other end of the chain (9) is connected with a right sliding block (11), the chain (9) is connected with a chain wheel (8) and a guide wheel (7) in a matched mode, a thermosensitive element (17) is arranged between the left sliding block (10) and an adjusting screw (16), a trigger rod (18) is arranged below the left sliding block (10), the mass of the left sliding block (10) is larger than that of the right sliding block (11), and through holes (19) matched with the ventilation holes (4) are formed in the left sliding block (10) and the right sliding block (11);
the electric part include smoke inductor (20), temperature-sensing ware (21), solenoid valve (22), motor (23) and control panel (24), smoke inductor (20) and temperature-sensing ware (21) set up in cabinet body (1), sprocket (8) set up on motor (23) output shaft, solenoid valve (22) be connected with connecting pipe (3).
2. The electronic equipment switch cabinet according to claim 1, characterized in that the adjusting block (12) is provided with an adjusting hole (25), a guide shaft (26) is arranged in the adjusting hole (25), one end of the guide shaft (26) is connected with the guide wheel (7) through a set bearing, the other end of the guide shaft (26) is provided with a thread, and the thread is matched with a set nut (27) to adjust and fix the guide shaft (26) in the adjusting hole (25).
3. The electronic equipment switch cabinet according to claim 1, characterized in that the heat sensitive element (17) comprises a glass tube (28) and a liquid of an organic material with a high coefficient of thermal expansion disposed in the glass tube (28).
4. The electronic equipment switch cabinet according to claim 1, characterized in that the cabinet body is provided with an observation hole (29), and a heat-proof glass is arranged in the observation hole (29).
5. The electrical equipment switchgear cabinet as claimed in claim 1, wherein the connecting pipe is provided with a manual switch valve (30).
6. The electronic equipment switch cabinet according to claim 1, characterized in that the cabinet body is provided with an exhaust pipe (31), the exhaust pipe (31) is communicated with the interior of the cabinet body (1), and a whistle is arranged at an outlet of the exhaust pipe (31).
7. The electronic equipment switch cabinet according to any one of claims 1-6, wherein the left slider (10) is provided with an upper positioning hole for cooperating with the thermal sensitive element (17), and the lower end of the screw rod of the adjusting screw (16) is provided with a lower positioning hole for cooperating with the thermal sensitive element (17).
8. The electrical equipment switchgear cabinet as claimed in claim 7, wherein said installation method comprises the steps of:
(A) a left sliding block (10) and a right sliding block (11) are respectively placed in the left sliding groove (5) and the right sliding groove (6);
(B) the mounting screw (15) is adjusted to match the through hole (19) of the left slide block (10) with the ventilation hole (4) on the cabinet body (1);
(C) a connecting chain (9) is matched with a chain wheel (8) and a guide wheel (7) and is connected with a right sliding block (11);
(E) the position of the guide wheel (7) is adjusted to ensure that the through hole (19) on the right slide block (11) is matched with the ventilation hole (4) on the cabinet body (1);
(D) the heat-sensitive element (17) is placed on the lower positioning hole, the adjusting screw (16) is adjusted to match the heat-sensitive element (17) with the upper positioning hole, and then the mounting screw (15) is taken down.
CN201910490447.4A 2019-06-06 2019-06-06 Electronic equipment switch cabinet Active CN110112659B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910490447.4A CN110112659B (en) 2019-06-06 2019-06-06 Electronic equipment switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910490447.4A CN110112659B (en) 2019-06-06 2019-06-06 Electronic equipment switch cabinet

Publications (2)

Publication Number Publication Date
CN110112659A CN110112659A (en) 2019-08-09
CN110112659B true CN110112659B (en) 2020-05-19

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ID=67494210

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910490447.4A Active CN110112659B (en) 2019-06-06 2019-06-06 Electronic equipment switch cabinet

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111224334A (en) * 2020-02-14 2020-06-02 滨州学院 Outdoor power control cabinet based on Internet of things
CN111431054A (en) * 2020-05-11 2020-07-17 洪丽燕 Electrical cabinet with automatic fire extinguishing function and use method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013062425A (en) * 2011-09-14 2013-04-04 Toshiba Corp Ventilation device of electronic apparatus installed in outdoor environment
CN103282753A (en) * 2010-11-17 2013-09-04 株式会社伊西特姆 Portable device for measuring temperature using infrared array sensor
CN203839776U (en) * 2014-05-23 2014-09-17 圣特立集团有限公司 Wind power generation combined-type box-type substation
CN204793746U (en) * 2015-07-10 2015-11-18 青岛中源邦电气有限公司 Automatic aeration cooling block terminal
CN206931890U (en) * 2017-07-17 2018-01-26 刘邦 A kind of high voltage power distributing cabinet with extinguishing device
CN207266436U (en) * 2017-08-25 2018-04-20 上海鹰信智能技术有限公司 One kind fire prevention vehicle-mounted multimedia equipment
CN109687319A (en) * 2019-01-28 2019-04-26 安徽省康宇水电机械成套设备有限公司 A kind of closed outdoor high-voltage electrical cabinet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103282753A (en) * 2010-11-17 2013-09-04 株式会社伊西特姆 Portable device for measuring temperature using infrared array sensor
JP2013062425A (en) * 2011-09-14 2013-04-04 Toshiba Corp Ventilation device of electronic apparatus installed in outdoor environment
CN203839776U (en) * 2014-05-23 2014-09-17 圣特立集团有限公司 Wind power generation combined-type box-type substation
CN204793746U (en) * 2015-07-10 2015-11-18 青岛中源邦电气有限公司 Automatic aeration cooling block terminal
CN206931890U (en) * 2017-07-17 2018-01-26 刘邦 A kind of high voltage power distributing cabinet with extinguishing device
CN207266436U (en) * 2017-08-25 2018-04-20 上海鹰信智能技术有限公司 One kind fire prevention vehicle-mounted multimedia equipment
CN109687319A (en) * 2019-01-28 2019-04-26 安徽省康宇水电机械成套设备有限公司 A kind of closed outdoor high-voltage electrical cabinet

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Address after: 413000 Yiyang City, Hunan province Heshan District Long Ridge Industrial Park, West Road, No. 1

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Address before: 413000 Yiyang City, Hunan province Heshan District Long Ridge Industrial Park, West Road, No. 1

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