CN101916968A - Terminal box - Google Patents

Terminal box Download PDF

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Publication number
CN101916968A
CN101916968A CN 201010240832 CN201010240832A CN101916968A CN 101916968 A CN101916968 A CN 101916968A CN 201010240832 CN201010240832 CN 201010240832 CN 201010240832 A CN201010240832 A CN 201010240832A CN 101916968 A CN101916968 A CN 101916968A
Authority
CN
China
Prior art keywords
temperature
casing
humidity
controller
air conditioner
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.)
Pending
Application number
CN 201010240832
Other languages
Chinese (zh)
Inventor
陈浩敏
梁杰
陈伟浩
庄孟文
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.)
CHANGZHOU YINGNENG ELECTRIC CO LTD
Guangzhou electric power design institute
Original Assignee
CHANGZHOU YINGNENG ELECTRIC CO LTD
Guangzhou electric power design institute
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 CHANGZHOU YINGNENG ELECTRIC CO LTD, Guangzhou electric power design institute filed Critical CHANGZHOU YINGNENG ELECTRIC CO LTD
Priority to CN 201010240832 priority Critical patent/CN101916968A/en
Publication of CN101916968A publication Critical patent/CN101916968A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a terminal box which comprises a box body and a temperature and humidity control device, wherein the box body is in an enclosed structure; the temperature and humidity control device comprises a controller, an air conditioner, a dehumidifier, a temperature sensor and a humidity sensor. The temperature sensor and the humidity sensor are respectively used for collecting temperature and humidity signals in the box body and transmitting the temperature and humidity signals to the controller. The controller is used for respectively comparing the temperature and the humidity in the box body with set operating temperature and set operating humidity. Moreover, when the temperature in the box body is higher than the maximum operating temperature or is lower than the minimum operating temperature, the controller switches on the air conditioner. When the humidity in the box body is higher than the maximum operating humidity, the controller switches on the dehumidifier. According to the invention, the temperature and the humidity in the box body are adjusted by using the air conditioner and the dehumidifier respectively and the operating requirements on precision electrical elements in the box body are better met by controlling the operation of the air conditioner and the dehumidifier through the controller.

Description

A kind of terminal box
Technical field
The present invention relates to a kind of parts of transformer station, especially a kind of terminal box of transformer station.
Background technology
Terminal box is a kind of electric component box that generally uses in the power industry transformer station, and previously used all is traditional conventional terminal box.The conventional terminal box of tradition is a simple metal shell; can only play basic physical protection to the electric component in the casing; temperature in the casing, the influence that damp condition is subjected to external environment are very big, so it can only satisfy general electric component and equipment instructions for use.And along with power industry constantly develops, schedule has been put in the development of intelligent grid and digital transformer substation.The development of digital transformer substation has proposed intelligent electronic device and has transferred on the spot requirement, and the running environment that intelligent electronic device requires is: temperature-5~+ 40 ℃, humidity 5%~95% (relative humidity, down with).If adopt the common terminal case, in the higher area of summer temperature, sunlight directly shines cabinet shell and causes the thermal accumlation effect in addition, adds the heating of intelligent electronic device internal electronic component, terminal casing internal temperature can easily break through+and 40 ℃.In addition, for the more southern area of rainwater, humidity can reach more than 95%, form condensation easily under day and night temperature, so the common terminal case is difficult to adapt to the requirement that intelligent electronic device is installed.
For this reason, occurred follow-on common terminal case on the market, referring to Fig. 1, modified model common terminal case is mainly by the casing main body 1 that has chamber door 11 and be arranged on axial flow blower 7 and 8 one-tenth of Heater group in the casing main body 1.Casing main body 1 is the single hull structure, is provided with ventilative blinds hole 15 in casing main body 1 bottom.Axial flow blower 7 and Heater group 8 mainly are the environment that is used for improving in the casing, as dehumidifying, and cooling etc.Its operation principle is: heat temperature in the casing main body 1 that raises by heater 8, and then reach the purpose that reduces humidity, realize the displacement circulation of casing main body 1 inner air and outer air again by axial flow blower 7 and ventilative blinds hole 15, to reach the purpose that reduces temperature.Yet there is following problem in actual use in modified model common terminal case:
(1), owing on the box body wall ventilative blinds hole is arranged, on the one hand, humiture in the casing is subjected to the influence of environment bigger, can not get control, on the other hand, dust, moisture, corrosive gas, even some insects, toy can enter in the casing by ventilative blinds hole, influences the operate as normal of the interior electric component of casing;
(2), replace the operational environment that improves in the casing by the convection current of heater intensification and the inside and outside air of casing and have following point: 1. heater heats up and heats the humidity that has just temporarily reduced in the casing, airborne moisture is not thoroughly discharged outside the case in the casing, when ambient temperature descends, airborne steam will condensation and attached to the surface of electric component, has buried hidden danger for the safe operation of electric equipment; 2. the temperature of casing outer air and humidity are not what determine, may be hot and humid, and after the exchange, it is poorer that the situation of box house can become, and can not satisfy the intelligent electronic device service requirement; 3. axial flow blower damages easily, and cooling-down effect is not obvious, and under the situation of dirt accumulation, easily stops up the air port, and the casing inner air and outer air can't be circulated, and does not only have cooling-down effect, also can cause temperature rising in the casing conversely.
In sum, imperative for the intelligent substation special-purpose terminal box of customizing.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, provide a kind of temperature control effect on moisture extraction good terminal box, to satisfy the job requirement of the intelligent electronic device in the terminal box.
To achieve these goals, the technical solution used in the present invention is:
A kind of terminal box comprises casing and is used to regulate the temperature and humidity control device of temperature and humidity in the casing that this casing comprises casing main body and chamber door, and described casing is a closed structure; Described temperature and humidity control device comprises controller, air conditioner, dehumidifier, temperature sensor and humidity sensor, this temperature sensor and this humidity sensor are used for gathering respectively the temperature and humidity signal in the described casing, and this temperature and humidity signal is transferred to described controller; Described controller is used for the temperature and humidity in the casing is compared with working temperature and the working relative humidity set respectively, and, when the temperature in the casing is higher than the maximum of working temperature or is lower than the minimum value of working temperature, this controller is opened air conditioner, when the humidity in the casing was higher than the maximum of working relative humidity, this controller was opened dehumidifier.
Because casing is relative closed structure, can not only avoid external impurities such as dust, moisture, corrosive gas enter influences electric equipment in the casing operate as normal, and, the internal environment and the outer room of casing are isolated, be convenient to temperature control and dehumidifying.Adopt air conditioner that temperature in the casing is regulated, and adopt the dehumidifier dehumidifying, the humidity condensed Cheng Shuihou in the casing is directly discharged outside the casing, thoroughly changed dehumidification mode; And, by the work of controller control air conditioner and dehumidifier, realized the Based Intelligent Control of temperature and humidity, satisfied the job requirement of accurate electric component in the casing better.
Above-mentioned air conditioner is two, and these two air conditioners are in parallel.When wherein one break down when quitting work, other one can work on, whole temp and humidity regulator can not be damaged.
Above-mentioned dehumidifier is a semiconductor cooler, and the cold junction of this semiconductor cooler is provided with water leg, and this water leg is interlinked to the outside by water pipe and casing.With semiconductor cooler the humidity condensed Cheng Shuihou in the casing is directly discharged outside the case, and when temperature hangs down the cold junction frosting, can oppositely heat and impel frost to be melted into aqueous water.
Above-mentioned controller comprises the fault alarm module, and when described air conditioner or described dehumidifier broke down, this fault alarm module was used to receive the fault-signal and the output alarm signal of described air conditioner or the output of described dehumidifier and reports to the police.
Each wall and the described chamber door of above-mentioned casing main body include internal layer and skin, and between internal layer and skin, be filled with heat-barrier material, interior with the extraneous effect of heat insulation of casing when this structure can increase adjustment, reduce the temperature rise of box house when Exposure to Sunlight, prevent that inner delicate electrical equipment is influenced by external high temperature.
Accomplish rainproof exothermal effect for and the stronger area of solar irradiation many, above above-mentioned casing, be provided with wooden protective cover at rainwater.
Compared with prior art, advantage of the present invention is:
1, the double-decker casing of totally-enclosed can reduce the influence of extraneous natural environment to electric component operational environment in the casing;
2, the terminal casing internal temperature and the humidity problem that fundamentally solve of Chuan Xin temperature and humidity regulative mode satisfies the service requirement of intelligent electronic device and other electric component;
3, brand-new temperature and humidity control system has been realized the intellectuality that whole terminal box humiture is regulated, and has satisfied the requirement of intelligent substation.
Description of drawings
Fig. 1 is the structural representation of modified model terminal box in the prior art;
Fig. 2 is the front view of embodiment of the invention chamber door when closing;
Fig. 3 is the front view of embodiment of the invention chamber door when opening;
Fig. 4 is the partial enlarged view at I place among Fig. 3;
Left view when Fig. 5 embodiment of the invention air conditioning chamber door is closed;
Fig. 6 is the left view of embodiment of the invention air conditioning chamber door when opening;
Fig. 7 is an embodiment of the invention Temperature and Humidity Control schematic diagram;
Fig. 8 is an embodiment of the invention Temperature and Humidity Control logic diagram.
Description of reference numerals:
1-casing main body, 11-chamber door, 12-protective cover, 13-air conditioning chamber, 14-air conditioning chamber door, the ventilative blinds hole of 15-, 2-air conditioner, 3-dehumidifier, 31-water leg, 32-water pipe, 4-guidance panel, 5-electric component, 6-terminal board, 7-axial flow blower, 8-heater.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated:
Terminal box of the present invention is mainly by casing be used to regulate in the casing temperature and humidity control device of temperature and humidity and form.
Referring to Fig. 2 to Fig. 6, the relative closed structure of casing for being made of casing main body 1 and the chamber door 11 that is arranged on casing main body 1 front side is equipped with terminal board 6 and electric component 5 in casing.Each wall of casing main body 1 and chamber door 11 are by internal layer and outer constitute, and are filled with heat insulation foam between internal layer and skin, can reduce the temperature rise of box house like this when Exposure to Sunlight, when increasing adjustment with extraneous effect of heat insulation.Above casing, be provided with wooden protective cover 12, casing is played the effect of insulating water-proof.Be provided with the air conditioning chamber 13 that has air conditioning chamber's door 14 in the left side of casing, guidance panel 4 is housed in air conditioning chamber 13.
Please in the lump referring to Fig. 7, temperature and humidity control device mainly is made up of controller, contactor, two air conditioners 2, dehumidifier 3, temperature sensor and humidity sensors, and wherein, two air conditioners 2 are mutually arranged side by side, and link to each other with controller through contactor.The indoor set of air conditioner 2 is contained in the casing, and the off-premises station of air conditioner 2 is installed in the air conditioning chamber 13.Dehumidifier 3 is installed in the casing inner bottom part, and links to each other with controller.Dehumidifier 3 is a semiconductor cooler, is provided with water leg 31 at the cold junction of semiconductor cooler, and this water leg 31 is interlinked to the outside by water pipe 32 and casing.When semiconductor cooler started, airborne steam will be condensed into water at cold junction, after collecting by water leg 31, discharged casing by water pipe 32 again, had therefore thoroughly reduced the humidity in the casing.When humidity drops to set point, dehumidifier quits work, and the humidity of box house can keep for a long time, and dehumidifier does not need continuous operation, energy savings.Temperature sensor and humidity sensor are installed in the casing, and are connected with controller.Temperature sensor and humidity sensor are used for gathering respectively the temperature and humidity signal in the casing, and this temperature and humidity signal is transferred to controller; Controller is used for the temperature and humidity in the casing is compared with working temperature and the working relative humidity set respectively, and, when the temperature in the casing is higher than the maximum of working temperature or is lower than the minimum value of working temperature, this controller is opened air conditioner 2, when the humidity in the casing was higher than the maximum of working relative humidity, this controller was opened dehumidifier 3.
Further set forth the control principle of temperature and humidity control device of the present invention below in conjunction with Fig. 8.For example, the working temperature of at first setting in the casing is 25 ℃, and maximum temperature threshold is 30 ℃, and minimum work threshold value is 15 ℃, and setting working relative humidity simultaneously is 70%, and the maximal humidity threshold setting is 75%.When the temperature in temperature sensor detects casing surpasses 30 ℃, controller output signal starts air conditioner, and air conditioner starts refrigeration, reduces temperature in the casing rapidly, when temperature was lower than 25 ℃ in temperature sensor detects casing, output signal stopped the air conditioner refrigeration; In like manner, when the temperature in temperature sensor detects casing was lower than 15 ℃, controller output signal started air conditioner, the air conditioner startup heats, temperature in the rising casing, when temperature was higher than 25 ℃ in temperature sensor detects casing, output signal stopped air conditioner heat-production.Humidity surpasses when being 75% in humidity sensor detects casing, start signal output electronics dehumidifier 3; Being lower than to the interior humidity of casing is 70% o'clock, and output signal is closed electronics dehumidifier 3.The temperature and humidity threshold value of controller can be provided with according to the job requirement of different environments for use and intelligent electronic device.Controller also comprises the fault alarm module, and when air conditioner 2 or dehumidifier 3 broke down, this fault alarm module was used to receive the fault-signal and the output alarm signal of air conditioner 2 or dehumidifier 3 outputs and reports to the police.
Be specific embodiments of the invention only below, do not limit protection scope of the present invention with this; Any replacement and the improvement done on the basis of not violating the present invention's design all belong to protection scope of the present invention.

Claims (7)

1. a terminal box comprises casing and is used to regulate the temperature and humidity control device of temperature and humidity in the casing, and this casing comprises casing main body and chamber door, it is characterized in that: described casing is a closed structure; Described temperature and humidity control device comprises controller, air conditioner, dehumidifier, temperature sensor and humidity sensor, this temperature sensor and this humidity sensor are used for gathering respectively the temperature and humidity signal in the described casing, and this temperature and humidity signal is transferred to described controller; Described controller is used for the temperature and humidity in the casing is compared with working temperature and the working relative humidity set respectively, and, when the temperature in the casing is higher than the maximum of working temperature or is lower than the minimum value of working temperature, this controller is opened air conditioner, when the humidity in the casing was higher than the maximum of working relative humidity, this controller was opened dehumidifier.
2. terminal box according to claim 1 is characterized in that: described air conditioner is two, and these two air conditioners are in parallel.
3. terminal box according to claim 1 is characterized in that: described dehumidifier is a semiconductor cooler, is provided with water leg at the cold junction of this semiconductor cooler, and this water leg is interlinked to the outside by water pipe and described casing.
4. terminal box according to claim 1, it is characterized in that: described controller comprises the fault alarm module, when described air conditioner or described dehumidifier broke down, this fault alarm module was used to receive the fault-signal and the output alarm signal of described air conditioner or the output of described dehumidifier and reports to the police.
5. the described terminal box arbitrary according to claim 1 to 4 is characterized in that: each wall and the described chamber door of described casing main body include internal layer and skin, and are filled with heat-barrier material between internal layer and skin.
6. terminal box according to claim 5 is characterized in that: be provided with wooden protective cover above described casing.
7. terminal box according to claim 5 is characterized in that: the side at described casing is provided with the air conditioning chamber, and described air conditioner comprises indoor set and off-premises station, and this off-premises station is installed in the described air conditioning chamber.
CN 201010240832 2010-07-29 2010-07-29 Terminal box Pending CN101916968A (en)

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CN 201010240832 CN101916968A (en) 2010-07-29 2010-07-29 Terminal box

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Application Number Priority Date Filing Date Title
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419875A (en) * 2011-10-18 2012-04-18 深圳市爱科赛科技有限公司 Low temperature control method and system used for access control system
CN102425838A (en) * 2011-11-04 2012-04-25 江苏科技大学 Dehumidification and heat dissipation control system and method for ship communication cabin
CN103176486A (en) * 2011-12-26 2013-06-26 联想(北京)有限公司 Dehumidifying method applied to electronic device and electronic device
CN103350081A (en) * 2013-06-09 2013-10-16 国家电网公司 Intelligent dust removal system in electric power system intelligent substation construction
CN103683013A (en) * 2013-12-03 2014-03-26 国网河南省电力公司商丘供电公司 Terminal box
CN105162258A (en) * 2015-09-18 2015-12-16 国网冀北电力有限公司信息通信分公司 Substation intelligent auxiliary control system based on internet of things and three-dimensional visualization technology
CN105739557A (en) * 2016-03-28 2016-07-06 周佰芹 Constant-temperature control system based on internal circulation type explosion-proof power distribution cabinet
CN106452191A (en) * 2016-08-23 2017-02-22 江苏明强电气有限公司 Intelligent high-voltage variable-frequency starting cabinet having self-maintenance function
CN108462069A (en) * 2017-12-29 2018-08-28 国网浙江省电力公司金华供电公司 One kind can charge alternate form switch terminal case
CN108873960A (en) * 2018-07-06 2018-11-23 中国矿业大学(北京) Moisture-proof control cabinet for three axis non-isothermal multiphase porous flow experimental system of deep soft rock
CN110312401A (en) * 2019-07-29 2019-10-08 潍坊护理职业学院 One kind being directed to computer network security protective device
CN111457568A (en) * 2020-03-26 2020-07-28 广东电网有限责任公司 Intelligent control system and method for substation microenvironment
CN111509594A (en) * 2020-04-23 2020-08-07 广东电网有限责任公司东莞供电局 Condensation preventing device and control box
CN112038949A (en) * 2020-09-10 2020-12-04 淮安市伟杰配电控制设备有限公司 Intelligent cooling device and cooling method for power distribution room

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2716710Y (en) * 2004-07-26 2005-08-10 郑建军 Ventilating system with automatic temperature control
CN2729772Y (en) * 2004-04-23 2005-09-28 李日胜 Energy-saving controller
CN2849788Y (en) * 2005-08-05 2006-12-20 吴智泉 Temp controller for electronic apparatus
CN201049806Y (en) * 2007-05-14 2008-04-23 汪洋 Integrated heat-insulation box body
CN201750045U (en) * 2010-07-29 2011-02-16 广州电力设计院 Intelligent terminal box

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2729772Y (en) * 2004-04-23 2005-09-28 李日胜 Energy-saving controller
CN2716710Y (en) * 2004-07-26 2005-08-10 郑建军 Ventilating system with automatic temperature control
CN2849788Y (en) * 2005-08-05 2006-12-20 吴智泉 Temp controller for electronic apparatus
CN201049806Y (en) * 2007-05-14 2008-04-23 汪洋 Integrated heat-insulation box body
CN201750045U (en) * 2010-07-29 2011-02-16 广州电力设计院 Intelligent terminal box

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419875A (en) * 2011-10-18 2012-04-18 深圳市爱科赛科技有限公司 Low temperature control method and system used for access control system
CN102425838A (en) * 2011-11-04 2012-04-25 江苏科技大学 Dehumidification and heat dissipation control system and method for ship communication cabin
CN103176486A (en) * 2011-12-26 2013-06-26 联想(北京)有限公司 Dehumidifying method applied to electronic device and electronic device
CN103176486B (en) * 2011-12-26 2015-07-29 联想(北京)有限公司 A kind ofly be applied to dehumanization method in electronic equipment and electronic equipment
CN103350081A (en) * 2013-06-09 2013-10-16 国家电网公司 Intelligent dust removal system in electric power system intelligent substation construction
CN103683013A (en) * 2013-12-03 2014-03-26 国网河南省电力公司商丘供电公司 Terminal box
CN105162258A (en) * 2015-09-18 2015-12-16 国网冀北电力有限公司信息通信分公司 Substation intelligent auxiliary control system based on internet of things and three-dimensional visualization technology
CN105739557A (en) * 2016-03-28 2016-07-06 周佰芹 Constant-temperature control system based on internal circulation type explosion-proof power distribution cabinet
CN106452191A (en) * 2016-08-23 2017-02-22 江苏明强电气有限公司 Intelligent high-voltage variable-frequency starting cabinet having self-maintenance function
CN108462069A (en) * 2017-12-29 2018-08-28 国网浙江省电力公司金华供电公司 One kind can charge alternate form switch terminal case
CN108873960A (en) * 2018-07-06 2018-11-23 中国矿业大学(北京) Moisture-proof control cabinet for three axis non-isothermal multiphase porous flow experimental system of deep soft rock
CN110312401A (en) * 2019-07-29 2019-10-08 潍坊护理职业学院 One kind being directed to computer network security protective device
CN111457568A (en) * 2020-03-26 2020-07-28 广东电网有限责任公司 Intelligent control system and method for substation microenvironment
CN111509594A (en) * 2020-04-23 2020-08-07 广东电网有限责任公司东莞供电局 Condensation preventing device and control box
CN112038949A (en) * 2020-09-10 2020-12-04 淮安市伟杰配电控制设备有限公司 Intelligent cooling device and cooling method for power distribution room

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