CN203850880U - Distributed DC power supply device for high-voltage switch cabinet - Google Patents

Distributed DC power supply device for high-voltage switch cabinet Download PDF

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Publication number
CN203850880U
CN203850880U CN201420251664.0U CN201420251664U CN203850880U CN 203850880 U CN203850880 U CN 203850880U CN 201420251664 U CN201420251664 U CN 201420251664U CN 203850880 U CN203850880 U CN 203850880U
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CN
China
Prior art keywords
support plate
panel
space
converter unit
bar shaped
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Expired - Fee Related
Application number
CN201420251664.0U
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Chinese (zh)
Inventor
孙琦
张伟
徐凤侠
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Chongqing Lai Gete Electric Applicance Co Ltd
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Chongqing Lai Gete Electric Applicance Co Ltd
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Priority to CN201420251664.0U priority Critical patent/CN203850880U/en
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Publication of CN203850880U publication Critical patent/CN203850880U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a distributed DC power supply device for a high-voltage switch cabinet, and belongs to the field of electrical equipment. The device comprises a shell, a circuit module and a battery, wherein the circuit module is arranged inside the shell and is composed of an AC/DC conversion unit, a DC/DC conversion unit and a CPU single chip microcomputer management unit. The distributed DC power supply device for a high-voltage switch cabinet is characterized in that the shell comprises a front panel and a rear cover; a first supporting plate and a second supporting plate are vertically and fixedly arranged on the upper end and the lower end of the back surface of the front panel; the CPU single chip microcomputer management unit is arranged between the first supporting plate and the second supporting plate; the space between the first supporting plate and the second supporting plate and located right behind the CPU single chip microcomputer management unit is halved into a first space and a second space in the direction vertical with the front panel. According to the distributed DC power supply device for a high-voltage switch cabinet, a more compact structure is provided, miniaturization is realized, application of the distributed DC device is more flexible, good cooling effects are also provided, and the distributed DC device can be ensured to continuously, stably and reliably operate.

Description

A kind of distributing DC electric power apparatus of high-tension switch cabinet
Technical field
The utility model belongs to electric equipment field, is specifically related to a kind of distributing DC electric power apparatus of high-tension switch cabinet.
Background technology
The Main Function of switch cubicle (switchgear) is in the process of the generating of electric power system, transmission of electricity, distribution and electric energy conversion; carry out folding, control and protection power consumption equipment, it is applicable to the various different occasions such as power plant, transformer station, industrial enterprise and residential quarters.In switch cubicle, be typically provided with circuit breaker (or isolating switch or on-load switch), operating mechanism, instrument transformer and various protective devices etc.At present, have for the sorting technique of switch cubicle a variety of, as being divided into withdraw-type switch cabinet and fixed switching cabinet by circuit breaker mounting means; According to the difference of cabinet body structure, can be divided into metal closed switch cabinet and metal enclosed armoured switch cabinet; Can be divided into again high-tension switch cabinet, Medium Voltage Switchgear and low-tension switch cabinet etc. according to electric pressure difference.
Wherein, above-mentioned high-tension switch cabinet because of the electric pressure of its conveying high, transmission power is large, therefore be widely used in the larger part of electric load.Be accompanied by economical and scientific and technological fast development, more and more higher to the requirement of power supply reliability.Although existing high-voltage switch gear is provided with circuit breaker (or isolating switch or on-load switch), operating mechanism, instrument transformer and various protective devices etc. cashier's office in a shop; but when after a certain major loop power-off; above-mentioned circuit breaker (or isolating switch or on-load switch), operating mechanism and various protective device also may have a power failure thereupon; and then forfeiture protective effect, now just cause huge potential safety hazard to electric power system.So in order to make high-voltage switch gear protective device cashier's office in a shop can continue reliability service, also the supporting DC power supply that is provided with high-tension switch cabinet is come to power supplies such as circuit breaker, operating mechanism and various protective devices, thereby further guarantee the reliability of powering.
DC power supply main DC screen (power supply) system and two kinds of form of power of distributing DC electric power apparatus for powering to high-tension switch cabinet in prior art.Again because compared to direct current cabinet system, distributing DC electric power apparatus is independently installed in high-tension switch cabinet because of it, reduce the use amount of cable, and the overall cost that can help to save the floor space of direct current cabinet system and effectively reduce power distribution room, therefore obtain gradually user's accreditation and cashier's office in a shop popularize and use at high-voltage switch gear.
At present, the patent of invention disclosed " distributing DC electric power apparatus " that in prior art, notification number is CN1278468C, it is made up of AC/DC converter unit, DC/DC converter unit and CPU single-chip microcomputer administrative unit three parts, the input of AC/DC converter unit connects external power source, its output connects the input of DC/DC converter unit, and export DC low-voltage for CPU single-chip microcomputer administrative unit work and charge in batteries, the output port output direct current of DC/DC converter unit is for the regular load of system; The output of CPU single-chip microcomputer administrative unit respectively output signal is used for controlling AC/DC converter unit, DC/DC converter unit and battery-operated.And what this patent was comparatively detailed discloses all circuit structures of distributing DC electric power apparatus.
In addition, in prior art, notification number is that CN 202268738 U disclosed " distributed uninterrupted DC power supply " (day for announcing 2012.06.06) and notification number are CN 203416183 U disclosed " a kind of distributed electrical source power supply system " (day for announcing 2014.01.29), also only the circuit part of the distributing DC electric power apparatus for high-tension switch cabinet is disclosed.
The distributing DC electric power apparatus of high-tension switch cabinet of the prior art include housing, circuit module (disclosed by above-mentioned patent document) and storage battery (storage battery can concentrated setting in housing, also can divide and be arranged with housing), on the leading flank of described housing, there is operation display panel; Described circuit module is arranged in described housing, and this circuit module is made up of AC/DC converter unit, DC/DC converter unit and CPU single-chip microcomputer administrative unit.But applicant finds that by use it has following weak point: when the DC/DC converter unit in this device circuit module is used for powering, caloric value is large, for holdout device inside is in suitable operational environment, available technology adopting increases enclosure interior volume and on housing, lays many places louvre, and a fan is set on housing for the air of outside is carried to enclosure interior, thereby DC/DC converter unit is lowered the temperature simultaneously.But so, be just difficult to realize densification and the miniaturization of this device.
Based on this, it is compacter that applicant considers to design one, and have the distributing DC electric power apparatus of the high-tension switch cabinet of great heat radiation effect concurrently.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide the one can be compacter, and have the distributing DC electric power apparatus of the high-tension switch cabinet of great heat radiation effect concurrently.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A distributing DC electric power apparatus for high-tension switch cabinet, comprises the housing, circuit module and the storage battery that are embedded at the high card power switch rectangular body structure of entirety cashier's office in a shop; On the leading flank of described housing, there is operation display surface; Described circuit module is arranged in described housing, and this circuit module is made up of AC/DC converter unit, DC/DC converter unit and CPU single-chip microcomputer administrative unit;
It is characterized in that: described housing comprises front panel and the bonnet of rectangular plate shape; On described front panel, have operation display surface, the back side of described front panel is vertically fixedly installed past rear horizontal-extending and is positioned at the first support plate and second support plate of these top and bottom, back side;
On the dorsal surface of described front panel and between described the first support plate and the second support plate, tile and be fixedly installed described CPU single-chip microcomputer administrative unit;
Between described the first support plate and the second support plate and the space that is positioned at described CPU single-chip microcomputer administrative unit dead astern with perpendicular to described front panel direction vertically to being divided into the first space and second space, wherein, described the first space is used for installing described DC/DC converter unit, and described second space is used for installing described AC/DC converter unit;
Described the first space includes one and is parallel to the bar shaped rest pad of front panel, block fin, DC/DC converter unit and fan; Described bar shaped rest pad be close in described front panel and be vertically connected at the first support plate and the second support plate between; Described fin has heat absorption joint face and heat transmission fin and entirety and is fixedly installed on the dorsal surface of described bar shaped rest pad, described heat absorption joint face is just to described second space, and on this heat absorption joint face, be provided with described DC/DC converter unit and make this DC/DC converter unit entirety perpendicular to described front panel, described heat transmission fin deviates from described second space; Described fan be fixedly installed on described the second support plate and be positioned at described heat transmission fin under locate; On described the second support plate, there is the air inlet corresponding with fan; On described the first support plate and be positioned at described heat transmission fin directly over there is several ventholes;
Described second space comprises a bar shaped brace that is parallel to front panel, and described bar shaped brace is vertically connected between the first support plate and the second support plate and away from described front panel; On the leading flank of described bar shaped brace, be fixedly connected with described AC/DC converter unit and make this AC/DC converter unit entirety perpendicular to described front panel; On the dorsal surface of described bar shaped brace, be fixedly connected with connecting terminal block;
Described bonnet is detachably fixedly connected between the edge of described the first support plate and the edge of the second support plate, has the bar shape trench hole corresponding with described connecting terminal block on described bonnet.
As improvement, in described fin surface, be coated with insulation enamelled coating.
As improvement, the top, side that described bonnet closes on described front panel is provided with multiple louvres.
Compared to prior art, the distributing DC electric power apparatus of high-tension switch cabinet of the present utility model, has compact conformation, and has the advantage of great heat radiation effect concurrently.
Brief description of the drawings
Fig. 1 is the perspective view of the positive apparent direction of the distributing DC electric power apparatus of high-tension switch cabinet of the present utility model.
Fig. 2 is the rear apparent direction of distributing DC electric power apparatus of high-tension switch cabinet of the present utility model and perspective view when bonnet is separated to front panel.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
When concrete enforcement: as shown in Figure 1 to Figure 2, a kind of distributing DC electric power apparatus of high-tension switch cabinet, comprises the housing 1, circuit module and the storage battery (not shown) that are embedded at the high card power switch rectangular body structure of entirety cashier's office in a shop; On the leading flank of described housing 1, there is operation display surface; Described circuit module is arranged in described housing 1, and this circuit module is made up of AC/DC converter unit (not shown), DC/DC converter unit (not shown) and CPU single-chip microcomputer administrative unit (part 31 for its PCB circuit board is only shown in figure); When concrete enforcement, described housing 1 can be made by aluminium alloy or stainless steel.So not only can make housing 1 there is enough structural strengths, because aluminium alloy or stainless steel are conductor, can form an electro-magnetic screen layer, and then effectively reduce the electromagnetic interference of external electromagnetic radiation to housing 1 interior circuit module, make the operation of circuit module more reliable.
Described housing 1 comprises front panel 2 and the bonnet 6 of rectangular plate shape; On described front panel 2, have operation display surface, the back side of described front panel 2 is vertically fixedly installed past rear horizontal-extending and is positioned at the first support plate 21 and second support plate 23 of these top and bottom, back side;
On the dorsal surface of described front panel 2 and between described the first support plate 21 and the second support plate 23, tile and be fixedly installed described CPU single-chip microcomputer administrative unit; Because CPU single-chip microcomputer administrative unit has liquid crystal or LED display floater, therefore make the surface area of pcb board of CPU single-chip microcomputer administrative unit larger, adopt tiling to be fixed on the dorsal surface of front panel 2, can make full use of the space at this place, and in the time implementing, also can on the just right bonnet 6 in CPU single-chip microcomputer administrative unit both sides, several through holes 61 be set, help CPU single-chip microcomputer administrative unit better to dispel the heat.
Between described the first support plate 21 and the second support plate 23 and space that is positioned at described CPU single-chip microcomputer administrative unit dead astern with perpendicular to described front panel 2 directions vertically to being divided into the first space and second space, wherein, described the first space is used for installing described DC/DC converter unit, and described second space is used for installing described AC/DC converter unit;
Described the first space includes one and is parallel to the bar shaped rest pad 5 of front panel 2, block fin 8, DC/DC converter unit and fan 7; Described bar shaped rest pad 5 be close in described front panel 2 and be vertically connected at the first support plate 21 and the second support plate 23 between; Described fin 8 has heat absorption joint face 82 and heat transmission fin 81 and entirety and is fixedly installed on the dorsal surface of described bar shaped rest pad 5, described heat absorption joint face 82 is just to described second space, and on this heat absorption joint face 82, be provided with described DC/DC converter unit and make this DC/DC converter unit entirety perpendicular to described front panel 2, described heat transmission fin 81 deviates from described second space; Described fan 7 be fixedly installed on described the second support plate 23 and be positioned at described heat transmission fin 81 under locate; On described the second support plate 23, there is the air inlet corresponding with fan 7; On described the first support plate 21 and be positioned at described heat transmission fin directly over there is several ventholes 22; In above-mentioned the first space, while operation because of DC/DC converter unit, caloric value is large, when this DC/DC converter unit being arranged on to the heat absorption joint face 82 of fin 8, the heat that heat absorption joint face 82 can send DC/DC converter unit fully absorbs, and carry out heat exchange and dispel the heat by deviating from described second space heat transmission fin 81 and air on fin 8, simultaneously because heat transmission fin 81 deviates from described second space, therefore the heat of DC/DC converter unit is less on the second space impact for AC/DC converter unit is installed, and this heat and second space are kept apart.In addition, on the second support plate 23 under heat transmission fin 81, be provided with fan 7, and be provided with several ventholes 22 on the first support plate 21 directly over heat transmission fin 81, so, the characteristic of and easy floating lighter than cold air in conjunction with hot-air, the wind that fan 7 blows out blows out the floating that can accelerate hot-air from bottom to top, thereby heat transmission fin 81 is dispelled the heat, and obtains better radiating effect.
Described second space comprises a bar shaped brace 9 that is parallel to front panel 2, and described bar shaped brace 9 is vertically connected between the first support plate 21 and the second support plate 23 and away from described front panel 2; On the leading flank of described bar shaped brace 9, be fixedly connected with described AC/DC converter unit and make this AC/DC converter unit entirety perpendicular to described front panel 2; On the dorsal surface of described bar shaped brace 9, be fixedly connected with connecting terminal block 4;
Above-mentioned the first space and second space entirety is perpendicular to front panel 2, and when ensureing better radiating effect, what can make that the structure of circuit module takes up room minimizes, thereby the distributing DC electric power apparatus that this embodiment is related to is more compact.
Described bonnet 6 is detachably fixedly connected between the edge of described the first support plate 21 and the edge of the second support plate 23, has the bar shape trench hole corresponding with described connecting terminal block 4 on described bonnet 6.Described fin is coated with insulation enamelled coating on 8 surfaces.Because the pcb board of DC/DC converter unit is parallel and be fixed on the heat absorption joint face 82 of fin 8 (realizing fixing by the mode of connecting bolt with the surrounding at this pcb board), on fin 8 surfaces, be coated with insulating paint, can avoid completely with pcb board on pin touch and cause the situation of short circuit, can also prevent the oxidation on fin 8 surfaces, and then maintain the heat-conductive characteristic that fin 8 is good.When concrete enforcement, described insulation enamelled coating can adopt coating varnish, lamination coating or acetal paint.
The top, side that described bonnet 6 closes on described front panel 2 is provided with multiple louvres.When so just can forming intake and equal the best air draft situation of air output, and make the air that fan 7 blows out from flowing (from heat transmission fin 81 lower ends to upper end) along heat transmission fin 81, to play better radiating effect.
In sum, the distributing DC electric power apparatus of the high-tension switch cabinet that this embodiment relates to, can there is more cramped construction, thereby realize miniaturization, allow this distributed DC application of installation get up more flexible, and have the advantage of great heat radiation effect concurrently, thereby ensure this distributed DC device reliability service continually and steadily.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, above-mentioned execution mode is preferred forms of the present utility model, but the utility model is not limited to above-mentioned execution mode.In the ken that one skilled in the relevant art possesses, in all the utility model structures, be equal to replacement and all can be considered infringement of the present utility model.

Claims (3)

1. a distributing DC electric power apparatus for high-tension switch cabinet, comprises the housing, circuit module and the storage battery that are embedded at the high card power switch rectangular body structure of entirety cashier's office in a shop; On the leading flank of described housing, there is operation display surface; Described circuit module is arranged in described housing, and this circuit module is made up of AC/DC converter unit, DC/DC converter unit and CPU single-chip microcomputer administrative unit;
It is characterized in that: described housing comprises front panel and the bonnet of rectangular plate shape; On described front panel, have operation display surface, the back side of described front panel is vertically fixedly installed past rear horizontal-extending and is positioned at the first support plate and second support plate of these top and bottom, back side;
On the dorsal surface of described front panel and between described the first support plate and the second support plate, tile and be fixedly installed described CPU single-chip microcomputer administrative unit;
Between described the first support plate and the second support plate and the space that is positioned at described CPU single-chip microcomputer administrative unit dead astern with perpendicular to described front panel direction vertically to being divided into the first space and second space, wherein, described the first space is used for installing described DC/DC converter unit, and described second space is used for installing described AC/DC converter unit;
Described the first space includes one and is parallel to the bar shaped rest pad of front panel, block fin, DC/DC converter unit and fan; Described bar shaped rest pad be close in described front panel and be vertically connected at the first support plate and the second support plate between; Described fin has heat absorption joint face and heat transmission fin and entirety and is fixedly installed on the dorsal surface of described bar shaped rest pad, described heat absorption joint face is just to described second space, and on this heat absorption joint face, be provided with described DC/DC converter unit and make this DC/DC converter unit entirety perpendicular to described front panel, described heat transmission fin deviates from described second space; Described fan be fixedly installed on described the second support plate and be positioned at described heat transmission fin under locate; On described the second support plate, there is the air inlet corresponding with fan; On described the first support plate and be positioned at described heat transmission fin directly over there is several ventholes;
Described second space comprises a bar shaped brace that is parallel to front panel, and described bar shaped brace is vertically connected between the first support plate and the second support plate and away from described front panel; On the leading flank of described bar shaped brace, be fixedly connected with described AC/DC converter unit and make this AC/DC converter unit entirety perpendicular to described front panel; On the dorsal surface of described bar shaped brace, be fixedly connected with connecting terminal block;
Described bonnet is detachably fixedly connected between the edge of described the first support plate and the edge of the second support plate, has the bar shape trench hole corresponding with described connecting terminal block on described bonnet.
2. the distributing DC electric power apparatus of high-tension switch cabinet according to claim 1, is characterized in that: in described fin surface, be coated with insulation enamelled coating.
3. the distributing DC electric power apparatus of high-tension switch cabinet according to claim 1 and 2, is characterized in that: the top, side that described bonnet closes on described front panel is provided with multiple louvres.
CN201420251664.0U 2014-05-16 2014-05-16 Distributed DC power supply device for high-voltage switch cabinet Expired - Fee Related CN203850880U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420251664.0U CN203850880U (en) 2014-05-16 2014-05-16 Distributed DC power supply device for high-voltage switch cabinet

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Application Number Priority Date Filing Date Title
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CN203850880U true CN203850880U (en) 2014-09-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553240A (en) * 2015-12-31 2016-05-04 国网浙江省电力公司金华供电公司 Mobile relay protection test power supply device
CN105658040A (en) * 2016-03-22 2016-06-08 江苏峰谷源储能技术研究院有限公司 Power module heat-radiating structure with power-type components

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553240A (en) * 2015-12-31 2016-05-04 国网浙江省电力公司金华供电公司 Mobile relay protection test power supply device
CN105553240B (en) * 2015-12-31 2018-06-22 国网浙江省电力公司金华供电公司 Mobile reaying protection test supply unit
CN105658040A (en) * 2016-03-22 2016-06-08 江苏峰谷源储能技术研究院有限公司 Power module heat-radiating structure with power-type components

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140924

Termination date: 20180516

CF01 Termination of patent right due to non-payment of annual fee