A kind of drawer type direct current cabinet
Technical field
The utility model relates to a kind of drawer type direct current cabinet, belongs to power supply and distribution facility technical field.
Background technology
Direct current cabinet is used for supplying DC power source, is the reliability that guarantees power supply, and is convenient to change in the situation that switch breaks down convenient, and a lot of clients wish direct current cabinet to make the form of drawout cubicle.
Current DC cabinet cabinet type is generally frame structure, and arranged on left and right sides fills detachable side plate, before be door made of tempered glass, after be double door, degree of protection is up to IP20 ~ IP4X, and the wide * of the high * of overall dimension is dark=2260*800*600mm, frame structure does not have the direct current cabinet of drawer type.Maintenance and when test system need to have a power failure, fault electric arc can affect adjacent electric loop or device, and degree of protection is not high, can not meet high protection, highly reliable requirement.
MNS drawout cubicle comprises multiple different units specification, in cabinet, adopt C section bar crossbeam, C section bar column and dust panel to be separated into a plurality of drawer units space, compact conformation, save switchgear house space, single cabinet can be installed at most 36 loops, the unit of same size is interchangeable, when maintenance and test, system does not need to have a power failure, fault electric arc does not affect adjacent extraction assembly, cabinet arranged on left and right sides fills detachable side plate, but does not fill door before cabinet, is double door afterwards, degree of protection is IP20 ~ IP4X, overall dimension be the wide * of high * dark=2260*800*600mm.Because MNS drawout cubicle is by exchanging Specification Design, its line is three-phase four-wire system, and degree of protection is not high yet, and there is no two-way mother structure member and flip-chip operation mechanism.
Prestige figure cabinet comprises upper frame and bottom framework, by iron threeway, four nine folded section crossbeams are pegged graft orthogonal respectively for four jiaos of upper frame and bottom framework, the bight that upper frame is corresponding with bottom framework is connected by nine folded section columns respectively, and the two ends of each nine folded section columns plug with iron threeway respectively.At the bottom of the case of prestige figure cabinet, have three cables to import cover plate, can mutually replace, conveniently moving, is easy to import cable, is easy to perforate inlet wire, and load-bearing hinge is installed easily, changes cabinet door also easy.Cabinet door can be opened 130 °; Firm rectangular frame not only can be strengthened the intensity at Qianmen, can also be used to fixedly mount electric elements; Sealing property is better, can guarantee degree of protection IP54; Cabinet doorframe place is provided with waterproof edges and coordinates anti-sealing and dust to fall in cabinet with cabinet door sealing circle, fills double door after cabinet, facilitates work on the spot, but there is no the cabinet type of drawer type.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, and a kind of drawer type direct current cabinet is provided, easily manufactured and degree of protection is high.
For solving above technical problem, a kind of drawer type direct current cabinet provided by the utility model, comprise cabinet, described cabinet comprises upper frame and bottom framework, by iron threeway, four nine folded section crossbeams are pegged graft orthogonal respectively for four jiaos of upper frame and bottom framework, the bight that described upper frame is corresponding with bottom framework is connected by nine folded section columns respectively, and described in each, the two ends of nine folded section columns plug with described iron threeway respectively, the lower surface of described upper frame and the upper surface of described bottom framework are connected with respectively the C section bar crossbeam that position is corresponding and be parallel to each other, between the C section bar crossbeam of top and bottom, be connected with perpendicular to C section bar crossbeam and the C section bar column that is parallel to each other, short transverse along described C section bar column and described nine folded section columns is connected with multiple tracks C section bar crossbeam, the flat-shaped dust panel of multilayer water is connected on the differing heights of C section bar column and described nine folded section columns described in each spatial separation in cabinet is become to a plurality of drawer spaces, described in each, in drawer space, be separately installed with drawer unit, the mother row that power supply is provided to drawer unit described in each is also installed in cabinet.
With respect to prior art, the utility model has been obtained following beneficial effect: cabinet outside framework adopts the structure identical with prestige figure cabinet, has guaranteed degree of protection, and nine folded section crossbeams, nine folded section columns and iron threeway are the versatile material of manufacturing prestige figure cabinet; In cabinet, adopt versatile material C section bar crossbeam, C section bar column and the dust panel of manufacturing MNS drawout cubicle to be separated out drawer space; The prestige figure cabinet advantage of the advantage of MNS drawout cubicle and high-protection level is organically combined, formed cabinet type of the present utility model, the material of whole cabinet is easy to buy and install, and cost is low.
As improvement of the present utility model, on the doorframe of described cabinet, by hinge, be hinged with door made of tempered glass.With without door or sealing iron gate structure compare, door made of tempered glass has not only improved the degree of protection of drawout cubicle, and operating personnel can observe directly deciliter state of various Displaying Meters, signal lamp and circuit breaker and switch.
As further improvement of the utility model, described door made of tempered glass comprises rectangular shaped rim, the end face that described rectangular shaped rim contacts with described doorframe is provided with semicircle sealing strip, described semicircle sealing strip be fixed with square tube reinforcement interior week, the front end face of described square tube reinforcement is fixed in described rectangular shaped rim, the rear end face of described square tube reinforcement is embedded in the port of described doorframe formation, being provided with in interior week the toughened glass of the hole sealing of described rectangular shaped rim of described square tube reinforcement, between the front end face edge of described toughened glass and described rectangular shaped rim, by rectangular seal bar, realize sealing, the rear end face of described toughened glass is provided with the glass briquetting that described toughened glass is compressed, described glass briquetting is fixed by screws on described square tube reinforcement.After door made of tempered glass is closed, its rectangular shaped rim realizes sealing by semicircle sealing strip and doorframe, and toughened glass is realized sealing by rectangular seal bar and rectangular shaped rim; Square tube reinforcement can be used general section bar, improves on the one hand the intensity of door leaf, is convenient on the other hand fixing glass briquetting and toughened glass.
As improvement of the present utility model, described drawer unit comprises inlet wire drawer unit, the circuit breaker of described inlet wire drawer unit enters with the power supply right side mode that a left side goes out and is fixed on breaker mounting plate, the front end face of described circuit breaker is provided with deciliter group handle of controlling circuit-breaker switching on-off, dialling handle for described deciliter is clamped by the pusher dog on slide block rear end face, the cross section of described slide block takes the shape of the letter U and upper and lower two planes are parallel to each other, described slide block can move left and right along the guide groove between slide guide strip and fixed support, described fixed support is fixedly connected on described circuit breaker, the inner chamber of described slide block is provided with the gear that drives slide block to move left and right, described gear is fixed on the rear end of rotary gear shaft, described rotary gear shaft is arranged in axle sleeve and can rotates at axle sleeve, described axle sleeve is fixed on described support bracket fastened front end face, described rotary gear shaft and operating grip are in transmission connection, on the lower plane of described slide block, be evenly provided with perforation, described perforation is meshed with the gear teeth of described gear.After the anti-dress of circuit breaker Rotate 180 °, deciliter dial a handle be allocated to left side circuit breaker in gate-dividing state, deciliter dial a handle be allocated to right side circuit breaker in "on" position; The perforation of slide block moves to lower plane by upper plane, is equivalent to slide block also Rotate 180 ° anti-dress; When operating grip turns clockwise, driven gear rotating shaft and gear turn clockwise, and the gear teeth of gear are stirred slide block to left movement by perforation, and pusher dog is allocated to left side by a deciliter group handle, realizes separating brake.Otherwise when operating grip is rotated counterclockwise, driven gear rotating shaft and gear are rotated counterclockwise, the gear teeth of gear are stirred slide block by perforation and are moved right, and pusher dog is allocated to right side by a deciliter group handle, realizes and closing a floodgate.
As improvement of the present utility model, described mother row's horizontal segment is provided with fracture, between the two ends that described mother row disconnects, is connected in series with direct current shunt; Described direct current shunt comprises the shunt sampling end being connected with mother row's two ends respectively and is connected to the copper-manganese resistance between two shunt sampling ends, described in two, shunt sampling end is connected with respectively sampled signal line, described sampled signal line accesses respectively the signal input part of on-the-spot digital display instrument, and the signal output part of described on-the-spot digital display instrument is connected with the signal input part communication of backstage digital display instrument; Described mother row's horizontal segment is also set with Hall element, the signal input part of the signal output part access on-site supervision instrument of described Hall element, and the signal output part of described on-site supervision instrument is connected with the signal input part communication of background monitoring platform.When Hall element provides scene and background monitoring signal, set up direct current shunt; When direct current shunt has direct current to pass through, at two shunt sampling ends, produce pressure drop, sampled signal line offers on-the-spot digital display instrument and shows, and on-the-spot digital display instrument offers signal backstage digital display instrument again and shows, has so just formed duplicate protection, more reliable.
As preferred version of the present utility model, one end of the copper-manganese resistance of described direct current shunt is connected with described shunt sampling end by copper conductor.Copper-manganese resistance is in the situation that being subject to stress, and its resistance can increase, and affects certainty of measurement, copper conductor is good conductor and soft, one end of copper-manganese resistance has been realized and being flexible coupling by copper conductor and shunt sampling end, and the stress influence that having eliminated is rigidly connected brings, has improved certainty of measurement.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, accompanying drawing only provides reference and explanation use, non-in order to limit the utility model.
Fig. 1 is the front view of the utility model drawer type direct current cabinet cabinet framework.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the utility model drawer type direct current cabinet front view.
Fig. 5 is that Fig. 4 removes the left view after C section bar crossbeam and C section bar column.
Fig. 6 is the state diagram of door made of tempered glass after opening in Fig. 4.
Fig. 7 is the rear view of door made of tempered glass.
Fig. 8 is the state diagram of anti-dress circuit breaker when open position in direct-current drawer chest.
Fig. 9 is the vertical view of Fig. 8.
Figure 10 is the front view of operating mechanism in Fig. 8.
Figure 11 is along the cutaway view of A-A in Figure 10.
Figure 12 is the vertical view of Figure 10.
Figure 13 is the stereogram of bus current sampler.
Figure 14 is the electrical schematic diagram of the bus current sampler of the utility model drawer type direct current cabinet.
Figure 15 is the johning knot composition of direct current shunt.
In figure: 1. nine folded section crossbeams; 2. nine folded section columns; 3. iron threeway; 4. angle steel; 5.C section bar crossbeam; 6.C section bar column; 7. dust panel; 8. drawer unit; 9. mother is arranged;
10. cable vault; 11. bus-bar rooms; 12. operating rooms; 13. hinges; 14. doors made of tempered glass; 14a. rectangular shaped rim; 14b. door lock; The semicircle sealing strip of 14c.; 14d. square tube reinforcement; 14e. glass briquetting; 14f. toughened glass; 14g. briquetting screw;
15. breaker mounting plates; 16. circuit breakers; Dial handle for 16a. deciliter; 17. operating grips; 18. connection for transmission bars; 19. fixed supports; 20. axle sleeves; 21. rotary gear shafts; 22. jump rings; 23. gears; 24. regulating blocks; 25. slide blocks; 25a. pusher dog; 26. slide guide strips;
27. Hall elements; 28. on-site supervision instrument; 29. background monitoring platforms; 30. direct current shunts; 30a. shunt sampling end; 30a1. sampling point; 30b. copper-manganese resistance; 30c. copper conductor; 31. on-the-spot digital display instruments; 32. backstage digital display instruments.
Embodiment
As shown in Figure 1 to Figure 3, the cabinet of the utility model drawer type direct current cabinet comprises upper frame and bottom framework, and upper frame and bottom framework four jiaos are orthogonal by four nine folded section crossbeams 1 grafting by iron threeway 3 respectively, and bight also reinforces by angle steel 4.The bight that upper frame is corresponding with bottom framework is connected by nine folded section columns 2 respectively, and the two ends of each nine folded section columns 2 plug with iron threeway 3 respectively, the lower surface of upper frame and the upper surface of bottom framework are connected with respectively the C section bar crossbeam 5 that position is corresponding and be parallel to each other, between the C section bar crossbeam 5 of top and bottom, be connected with perpendicular to C section bar crossbeam 5 and the C section bar column 6 that is parallel to each other, short transverse along C section bar column 6 and nine folded section columns 2 is connected with multiple tracks C section bar crossbeam 5, the flat-shaped dust panel 7 of multilayer water is connected on the differing heights of each C section bar column 6 and nine folded section columns 2 spatial separation in cabinet is become to a plurality of drawer spaces, in each drawer space, be separately installed with drawer unit 8, the mother row 9 that power supply is provided to each drawer unit 8 is also installed in cabinet.
As shown in Fig. 4, Fig. 5 and Fig. 6, in cabinet, be provided with bus-bar room 11, cable vault 10 and operating room 12, operating room 12 is provided with a plurality of drawer units 8 that switch is housed, and the front port of cabinet is provided with doorframe, on doorframe, by hinge 13, is hinged with door made of tempered glass 14.
As shown in Figure 7, door made of tempered glass 14 comprises rectangular shaped rim 14a, door lock 14b is installed on rectangular shaped rim 14a, the end face that rectangular shaped rim 14a contacts with doorframe is provided with semicircle sealing strip 14c, semicircle sealing strip 14c is welded with square tube reinforcement 14d interior week, square tube reinforcement 14d can adopt prestige figure cabinet 110mm*110 mm * 11mm pass through section bar, along the length direction of square tube reinforcement 14d, be evenly distributed with a plurality of screws, be convenient to be screwed into screw.The front end face of square tube reinforcement 14d is fixed on rectangular shaped rim 14a, the rear end face of square tube reinforcement 14d is embedded in the port of doorframe formation, square tube reinforcement 14d is provided with the toughened glass 14f of the hole sealing of rectangular shaped rim 14a in interior week, between the front end face edge of toughened glass 14f and rectangular shaped rim 14a, by rectangular seal bar, realize sealing, rectangular seal bar two sealing surfaces all scribble fluid sealant.On square tube reinforcement 14d, be evenly distributed with a plurality of glass briquetting 14e, the screw that each glass briquetting 14e is screwed into square tube reinforcement 14d by briquetting screw 14g is respectively fixed, and the paw of each glass briquetting 14e is pressed in respectively on the rear end face of toughened glass 14f toughened glass 14f is fixed.
After door made of tempered glass is closed, its rectangular shaped rim 14a realizes sealing by semicircle sealing strip 14c and doorframe, and toughened glass 14f realizes sealing by rectangular seal bar and rectangular shaped rim 14a; Square tube reinforcement improves the intensity of door leaf on the one hand, is convenient on the other hand fixing glass briquetting 14e and toughened glass 14f; This direct current cabinet has not only improved the degree of protection of drawout cubicle, and operating personnel can observe directly deciliter state of various Displaying Meters, signal lamp and circuit breaker and switch.
As shown in Figure 8, Figure 9, drawer unit comprises inlet wire drawer unit, and the circuit breaker 16 of inlet wire drawer unit enters with the power supply right side mode that a left side goes out and is fixed on breaker mounting plate 15, and fixed support 19 is fixedly connected on circuit breaker 16.The front end face of circuit breaker 16 is provided with deciliter group handle 16a that controls circuit-breaker switching on-off, and a deciliter group handle 16a is clamped by the pusher dog 25a on slide block 25 rear end faces.Now a deciliter group handle 16a is allocated to left side by the pusher dog 25a on slide block 25, and circuit breaker 16 is in gate-dividing state.
As shown in Figure 10 to Figure 12, the cross section of slide block 25 takes the shape of the letter U and upper and lower two planes are parallel to each other, the outside of upper and lower two planes is respectively equipped with flange, and upper and lower flange is stuck in the guide groove between slide guide strip 26 and fixed support 19, and slide block 25 can be moved left and right along guide groove.The inner chamber of slide block 25 is provided with the gear 23 that drives slide block 25 to move left and right, gear 23 is fixed on the rear end of rotary gear shaft 21, on the lower plane of slide block 25, be evenly provided with perforation, perforation is meshed with the gear teeth of gear 23, rotary gear shaft 21 is arranged in axle sleeve 20 and can rotates at axle sleeve 20, axle sleeve 20 is fixed on the front end face of fixed support 19 and by jump ring 22 and rotary gear shaft 21 and realizes axial restraint, between axle sleeve 20 and the end face of gear 23, is provided with regulating block 24.Rotary gear shaft 21 is provided with spliced eye along axis, and operating grip 17 drives connection for transmission bars 18 to rotate, and connection for transmission bar 18 is inserted in driven wheel rotating shaft 21 in the spliced eye of rotary gear shaft 21 and rotates.
When operating grip 17 turns clockwise, driven gear rotating shaft 21 and gear 23 turn clockwise, and the gear teeth of gear 23 are stirred slide block 25 to left movement by perforation, and pusher dog 25a is allocated to left side by a deciliter group handle 16a, realizes separating brake.Otherwise when operating grip 17 is rotated counterclockwise, driven gear rotating shaft 21 and gear 23 are rotated counterclockwise, the gear teeth of gear 23 are stirred slide block 25 by perforation and are moved right, and pusher dog 25a is allocated to right side by a deciliter group handle 16a, realizes and closing a floodgate.
As Figure 13, shown in Figure 14, it is 9 L-shaped that mother is arranged, its horizontal segment is provided with fracture, between the two ends that mother row 9 disconnects, be connected in series with direct current shunt 30, direct current shunt 30 comprises the shunt sampling end 30a being connected with mother row 9 two ends respectively and is connected to the copper-manganese resistance 30b between two shunt sampling end 30a, two shunt sampling end 30a are respectively equipped with sampling point 30a1, sampling point 30a1 is connected with respectively sampled signal line, sampled signal line accesses respectively the signal input part of on-the-spot digital display instrument 31, the on-the-spot signal output part of digital display instrument 31 and the signal input part communication of backstage digital display instrument 32 are connected.The mother row 9 at direct current shunt 30 rears is set with Hall element 27, the signal input part of the signal output part access on-site supervision instrument 28 of Hall element 27, and the signal output part of on-site supervision instrument 28 is connected with the signal input part communication of background monitoring platform 29.
As shown in figure 15, one end of the copper-manganese resistance 30b of direct current shunt 30 can be connected with shunt sampling end 30a by copper conductor 30c.Copper-manganese resistance 30b is in the situation that being subject to stress, its resistance can increase, affect certainty of measurement, copper conductor 30c is good conductor and soft, one end of copper-manganese resistance 30b has been realized and being flexible coupling by copper conductor 30c and shunt sampling end 30a, the stress influence that having eliminated is rigidly connected brings, has improved certainty of measurement.
The signal that bus current 0-400A converts 0-100mA to by Hall element 27 offers on-site supervision instrument 28, on-site supervision instrument 28 carries out data processing comparison, judge whether overcurrent and show real-time current at monitoring liquid crystal display screen, the instrument of on-site supervision simultaneously 28 also offers background monitoring platform 29 for remote monitoring by RS4830 port by signal.When direct current shunt 30 has direct current to pass through; between two shunt sampling end 30a, produce 0-75mV pressure drop; sampled signal line offers on-the-spot digital display instrument 31 and shows; on-the-spot digital display instrument 31 is exported 0-20mA again signal is offered to 32 demonstrations of backstage digital display instrument; so just formed duplicate protection, more reliable.
Nine folded section crossbeams 1 and nine folded section columns 2 can select Jiang Yinchang to reach the product of metal equipment manufacture or Haiyang, Wuxi metallic article Co., Ltd.The ST010 type prestige figure cabinet iron threeway that iron threeway 3 can select Shanghai promise figure electric automatization equipment Co., Ltd to produce, or the RP-016-2 sections threeway of selecting Yongan, Shanghai Suo Ye Co., Ltd to produce.C section bar crossbeam 5, C section bar column 6 and dust panel 7 can be selected the product of Zhangjagang City Zhen Tu Electric Applicance Co., Ltd or the South Sea, Foshan City Heng Nuo General Electric Company, Ltd..
The FL2-400A/3230mV type direct current shunt that direct current shunt 30 can adopt East China, Shanghai Electrical Appliances Co., Ltd to produce.The ZL301330B 0-400A type Intelligent current table that on-the-spot digital display instrument 31 and backstage digital display instrument 32 can select Jiangsu Zhongling High Science and Technology Co., Ltd to produce.The HNC-400A/100mA type that Hall element 27 can adopt circumference Science and Technology Ltd. of Shenzhen Nintaus to produce, or the like product that adopts Xi'an Jin Zuan Electronic Science and Technology Co., Ltd. to produce, or the like product that adopts Fuyang Chuan Hong Import and Export Co., Ltd. to sell.On-site supervision instrument 28 can be selected Ai Mosheng (EMESON) PSM-E20 type monitor.
The foregoing is only the better possible embodiments of the utility model, non-so limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.