CN213278941U - Conductive stable low-voltage draw-out type switch cabinet drawer unit - Google Patents
Conductive stable low-voltage draw-out type switch cabinet drawer unit Download PDFInfo
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- CN213278941U CN213278941U CN202022108415.4U CN202022108415U CN213278941U CN 213278941 U CN213278941 U CN 213278941U CN 202022108415 U CN202022108415 U CN 202022108415U CN 213278941 U CN213278941 U CN 213278941U
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Abstract
The utility model discloses a low-voltage draw-out type switch cabinet drawer unit with stable electric conduction, which belongs to the technical field of low-voltage power distribution, and comprises a panel, a left side plate, a right side plate, a rear baffle and a bottom plate, wherein the rear baffle is embedded with a primary input plug-in and a primary output plug-in which are the same in quantity and are equal to or larger than 2 and have the same structure; in each primary input plug-in unit and the primary output plug-in unit, 3 conductive units are respectively arranged towards the inner side of the drawer unit, 3 groups of conductive plug-in sheets are respectively electrically connected with each conductive unit towards the outer side of the drawer unit, and a plurality of copper plug-in sheets are arranged in each group of conductive plug-in sheets; the conductive unit in each primary input card or output card is electrically connected with the corresponding conductive unit in the other primary input or output card through the conductive element. This drawer unit can prevent that the electric current is too big and lead to the overheated problem of damaging of plug-in components to drawer unit and cubical switchboard have a plurality of electrically conductive contact points, and electric conductive property is more stable.
Description
Technical Field
The utility model belongs to the technical field of the low voltage distribution, concretely relates to electrically conductive stable low pressure pull-out type cubical switchboard drawer unit.
Background
In industries such as power plants, petrochemical industry and buildings, low-voltage switch cabinets are configured to convert electric energy so as to meet the requirements of actual industrial production.
The low-voltage switch cabinet comprises a low-voltage fixed switch cabinet and a low-voltage draw-out switch cabinet: the low-voltage fixed switch cabinet is an integrated switch cabinet customized according to the size and the area of an actual application space; the low-voltage draw-out type switch cabinet comprises a fixed cabinet body and a draw-out type drawer device provided with electrical elements, the draw-out type drawer device is convenient to move and replace, and therefore the use flexibility is high, when the low-voltage draw-out type switch cabinet is used, a large current flows through the input and output ends of a circuit of the draw-out type drawer, and a main circuit connector can generate excessive heat, so that the connector cannot bear high temperature and is damaged, and the stable operation of equipment is influenced.
In chinese utility model patent CN206962287U (drawer structure of pull-out type low-voltage switchgear), the drawer unit connects A, B, C three-phase main bus bar respectively through the inlet wire plug-in components, and the binding post in the low-voltage switchgear is connected respectively to the outlet wire plug-in components, and plug bush correspond the setting, and the three copper sheathing on every inlet wire plug-in components is fixed in the low-voltage switchgear through all passing through insulating support. However, only three copper sleeves are arranged in the drawer structure, if the current passing through the low-voltage switch cabinet is too large, the maximum current amount which can be borne by the wire inlet and outlet plug-in components is extremely easily exceeded, so that the copper sleeves are damaged due to overheating, and meanwhile, the conductive contact is poor due to the contact points of the three copper sleeves, so that the conductive performance of the low-voltage switch cabinet is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves is that the low pressure pull-out type cubical switchboard drawer unit electric conductive property among the prior art is unstable, and easily takes place the electric current too big and lead to technical problem such as copper sheathing damage.
In order to solve the technical problem, the utility model discloses a drawer unit of a conductive and stable low-voltage draw-out type switch cabinet, which comprises a panel, a left side plate, a right side plate, a rear baffle and a bottom plate, wherein the left side plate and the right side plate are respectively and vertically connected with the left side and the right side of the panel;
a primary input plug-in unit and a primary output plug-in unit are embedded in the rear baffle; the primary input plug-in and the primary output plug-in are respectively distributed on the left side and the right side of the rear baffle; the number of the primary input plug-ins and the number of the primary output plug-ins are the same, and are respectively not less than 2;
the primary input plug-in and the primary output plug-in are identical in structure; in each primary input plug-in unit and each primary output plug-in unit, 3 conductive units are respectively arranged towards the inner side of the drawer unit, and 3 groups of conductive insertion sheets are respectively correspondingly connected with the 3 conductive units towards the outer side of the drawer unit; each group of conductive insertion pieces is provided with a copper insertion piece;
in the primary input plug-ins, the conductive unit in each primary input plug-in is respectively connected with the corresponding conductive units in other primary input plug-ins through conductive elements; similarly, in the primary output cards, the conductive unit in each primary output card is connected with the corresponding conductive unit in the other primary output cards through the conductive element.
Further, the number of the primary input plug-ins and the number of the primary output plug-ins are both 2.
Furthermore, the primary input plug-in comprises an upper primary input plug-in and a lower primary input plug-in, wherein the upper primary input plug-in is positioned above one side of the rear baffle, and the lower primary input plug-in is positioned right below the upper primary input plug-in;
in the upper primary input plug-in unit, 3 conductive units are arranged towards the inner side of the drawer unit and are marked as upper primary input plug-in unit copper sheets; correspondingly, 3 conductive units are arranged in the lower primary input plug-in unit towards the inner side of the drawer unit and are marked as lower primary input plug-in unit copper sheets; the 3 upper primary input plug-in copper sheets and the 3 lower primary input plug-in copper sheets are connected together through three conductive elements: respectively connecting each upper primary input plug-in copper sheet with the corresponding lower primary input plug-in copper sheet by a conductive element by using bolts to form conductive connection; one side of each conductive element, which is far away from the upper primary input plug-in copper sheet, is respectively connected with a primary input plug-in lead-out copper plate by using a bolt, and the 3 primary output plug-in lead-out copper plates are respectively and correspondingly connected with an A-phase main bus, a B-phase main bus and a C-phase main bus of the low-voltage draw-out type switch cabinet;
similarly, the primary output plug-in unit comprises an upper primary output plug-in unit and a lower primary output plug-in unit, wherein the upper primary output plug-in unit is positioned on one side of the rear baffle plate far away from the upper primary input plug-in unit, and the lower primary output plug-in unit is positioned right below the upper primary output plug-in unit; the connection relationship between the upper primary output plug-in and the lower primary output plug-in is the same as the connection relationship between the upper primary input plug-in and the lower primary input plug-in.
Furthermore, in the upper primary input plug-in unit, the lower primary input plug-in unit, the upper primary output plug-in unit and the lower primary output plug-in unit, N copper plug-in sheets are arranged in each group of conductive plug-in sheets; the phase inlet end plug and the phase outlet end plug of the low-voltage draw-out switch cabinet correspond to the copper insert sheet structures of the primary input insert piece and the primary output insert piece respectively, and the plugs can be inserted into the copper insert sheets to form electric connection.
Furthermore, N ≧ 1.
Further, N is 3.
Furthermore, a secondary plug-in is embedded in the rear baffle and positioned above the primary output plug-in.
Further, in the primary input or output card, the conductive element connecting the conductive units in different primary input or output cards is a conductive copper plate.
Compared with the prior product, the utility model discloses a low pressure pull-out type cubical switchboard drawer unit has following advantage:
(1) through setting up a plurality of input plug-in components and output plug-in components once, can bear the electric current of multiplicable, can prevent that the electric current is too big and lead to the problem of a plug-in components overheated damage.
(2) A plurality of plug-in copper sheets are arranged in the primary input plug-in and the primary output plug-in, so that a plurality of conductive contact points are arranged when the drawer unit is connected with the switch cabinet, the drawer unit and the switch cabinet form multi-guarantee effective electric connection, and the conductive stability is improved.
Drawings
FIG. 1: the three-dimensional structure schematic diagram of the drawer unit of the low-voltage draw-out switch cabinet.
FIG. 2: the structure of a primary input plug-in component of a drawer unit of the low-voltage draw-out type switch cabinet is enlarged.
FIG. 3: and the structural top view of the rear baffle plate of the drawer unit of the low-voltage draw-out switch cabinet.
FIG. 4: the structure front view of the back baffle plate of the drawer unit of the low-voltage draw-out switch cabinet.
Description of reference numerals: 1-a panel; 2-left side plate; 3-right side plate; 4-a rear baffle; 5-a bottom plate; 6-one-time input plug-in; 7-primary output plug-in; 8-secondary insertion; 11-a handle; 12-an operating handle; 21-a vent hole; 51-a ventilation slot; 61-upper one-time input plug-in; 62-lower one-time input plug-in; 611-upper primary input card copper sheet; 612-primary input plug copper plate; 613-leading out copper plate of primary input plug-in unit; 614-upper one-time input plug-in copper insert; 624-lower one-time input card copper insert; 71-upper primary output card; 72-lower primary output card; 714-upper primary output card copper insert; 724-lower primary output card copper insert.
Detailed Description
The technical solution of the present invention will be explained in detail by the following embodiments.
As shown in fig. 1-4, which are schematic perspective views of a drawer unit of a low-voltage draw-out type switch cabinet with stable electric conduction, the drawer unit comprises a panel 1, a left side plate 2, a right side plate 3, a rear baffle 4 and a bottom plate 5; left side board 2 and right side board 3 are connected perpendicularly respectively in the 1 left and right sides of panel, and the both ends of backplate 4 are connected perpendicularly respectively in left side board 2 and right side board 3 and keep away from panel 1 one side, and bottom plate 5 is connected perpendicularly respectively in the bottom of panel 1, left side board 2, right side board 3 and backplate 4, has formed the drawer structure of drawer unit from this.
The side of keeping away from left and right sides board on panel 1 is equipped with handle 11 and operating handle 12, evenly is equipped with ventilation hole 21 respectively on left side board 2 and the right side board 3, is equipped with ventilation groove 51 on the bottom plate 5, and the embedding is equipped with once input plug-in components 6, once exports plug-in components 7 and secondary plug-in components 8 on backplate 4. The primary input plug-in 6 and the primary output plug-in 7 are respectively distributed on the left and right sides of the rear baffle 4.
The number of the primary input inserts 6 is 2, and is respectively denoted as an upper primary input insert 61 and a lower primary input insert 62, the upper primary input insert 61 is positioned above one side of the tailgate 4, and the lower primary input insert 62 is positioned directly below the upper primary input insert 61.
Accordingly, the number of the primary output inserts 7 is also 2, which are respectively referred to as an upper primary output insert 71 and a lower primary output insert 72, the upper primary output insert 71 is located above the side of the tailgate 4 away from the upper primary input insert 61, and the lower primary output insert 72 is located directly below the upper primary output insert 71. The upper primary input card 61, the lower primary input card 62, the upper primary output card 71, and the lower primary output card 72 have the same structure. The secondary card 8 is located directly above the upper primary output card 71.
In the upper primary input plug-in unit 61, three conductive units extend from one side of the drawer unit, and are marked as an upper primary input plug-in copper sheet 611, correspondingly, three conductive units also extend from the lower primary input plug-in unit 62, and the corresponding primary input plug-in copper sheets in the upper primary input plug-in unit 61 and the lower primary input plug-in unit 62 are respectively connected together through three primary input plug-in copper sheets 612 by bolts to form conductive connection; three primary output card lead-out copper plates 613 are respectively connected to one side of each primary input card copper plate 612, which is far away from the upper primary input card copper sheet 611, by bolts, and the three primary output card lead-out copper plates 613 are respectively and correspondingly connected with an A-phase main bus, a B-phase main bus and a C-phase main bus of the low-voltage draw-out type switch cabinet.
Likewise, the connection relationship between the upper primary output card 71 and the lower primary output card 72 is the same as the connection relationship between the upper primary input card 61 and the lower primary input card 62.
In the upper primary input insert 61, three upper primary input insert copper insert sheets 614 are arranged on one side of the drawer unit outside; accordingly, of the lower primary input card 62, the upper primary output card 71, and the lower primary output card 72, three lower primary input card copper insert sheets 624, upper primary output card copper insert sheets 714, and lower primary output card copper insert sheets 724 are respectively provided at a side facing the outside of the drawer unit. The plug of the low-voltage draw-out switch cabinet corresponds to the input end and the output end of the primary plug-in unit respectively, and the plug can be inserted into the copper insert to form electric connection.
In the primary input plug-in 6 and the primary output plug-in 7, the current which can be borne by each plug-in copper sheet is about 125-135A. When the maximum current passing through the low-voltage draw-out type switch cabinet is 400A, the primary input plug-in and the primary output plug-in can be arranged in the low-voltage draw-out type switch cabinet drawer unit according to the specific embodiment. At this time, the 3 copper insertion sheets 614 in the upper primary input plug 61 and the 3 copper insertion sheets 624 in the lower primary input plug 62 are connected with the low-voltage drawing type switch cabinet to form a conductive input connection together. In this way, there are 6 conductive connection points between the primary input plug-in of the switch cabinet drawer unit and the low-voltage switch cabinet, the maximum current that can be borne is 125 × 6-750A-135 × 810A, which far exceeds the maximum current 400A, the circuit will not bear excessive current, and thus the circuit elements will not be damaged due to overheating; meanwhile, even if complete effective connection cannot be realized among the 6 conductive connection points, when 1-2 conductive connection points can not be realized, the current of 400A can still be borne, so that the drawer unit and the switch cabinet form multi-guarantee effective electric connection, and the conductive stability is stronger.
The above embodiment is a typical example, and in other specific embodiments, in order to meet different input and output current requirements of the low-voltage draw-out type switch cabinet, the specific arrangement manner may also be changed, for example: the number of the first-time input plug-in 6 and the first-time output plug-in 7 can be larger than or equal to 3, but the number of the first-time input plug-in 6 and the first-time output plug-in 7 is ensured to be the same; meanwhile, in the primary input card 6 or the primary output card 7, the number of the copper insertion sheets of the primary input card and the number of the copper insertion sheets of the primary output card may be any one of 1, 2 and ≧ 4, but it is necessary to ensure that the number of the copper insertion sheets of the primary input card and the copper insertion sheets of the primary output card is the same.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The utility model provides a conductive stable low pressure pull-out type cubical switchboard drawer unit, includes panel, left side board, right side board, backplate and bottom plate, its characterized in that: the left side plate and the right side plate are respectively and vertically connected to the left side and the right side of the panel, the left end and the right end of the rear baffle are respectively and vertically connected to one sides of the left side plate and the right side plate, which are far away from the panel, and the bottom plate is respectively and vertically connected to the bottoms of the panel, the left side plate, the right side plate and the rear baffle;
a primary input plug-in unit and a primary output plug-in unit are embedded in the rear baffle; the primary input plug-in and the primary output plug-in are respectively distributed on the left side and the right side of the rear baffle; the number of the primary input plug-ins and the number of the primary output plug-ins are the same, and are respectively not less than 2;
the primary input plug-in and the primary output plug-in are identical in structure; in each primary input plug-in unit and each primary output plug-in unit, 3 conductive units are respectively arranged towards the inner side of the drawer unit, and 3 groups of conductive insertion sheets are respectively correspondingly connected with the 3 conductive units towards the outer side of the drawer unit; each group of conductive insertion pieces is provided with a copper insertion piece;
in the primary input plug-ins, the conductive unit in each primary input plug-in is respectively connected with the corresponding conductive units in other primary input plug-ins through conductive elements; similarly, in the primary output cards, the conductive unit in each primary output card is connected with the corresponding conductive unit in the other primary output cards through the conductive element.
2. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 1, wherein: the number of the primary input plug-ins and the number of the primary output plug-ins are both 2.
3. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 2, wherein: the primary input plug-in comprises an upper primary input plug-in and a lower primary input plug-in, the upper primary input plug-in is positioned above one side of the rear baffle, and the lower primary input plug-in is positioned right below the upper primary input plug-in;
in the upper primary input plug-in unit, 3 conductive units are arranged towards the inner side of the drawer unit and are marked as upper primary input plug-in unit copper sheets; correspondingly, 3 conductive units are arranged in the lower primary input plug-in unit towards the inner side of the drawer unit and are marked as lower primary input plug-in unit copper sheets; the 3 upper primary input plug-in copper sheets and the 3 lower primary input plug-in copper sheets are connected together through three conductive elements: respectively connecting each upper primary input plug-in copper sheet with the corresponding lower primary input plug-in copper sheet by a conductive element through bolts; one side of each conductive element, which is far away from the upper primary input plug-in copper sheet, is respectively connected with a primary input plug-in lead-out copper plate by using a bolt, and the 3 primary output plug-in lead-out copper plates are respectively and correspondingly connected with an A-phase main bus, a B-phase main bus and a C-phase main bus of the low-voltage draw-out type switch cabinet;
the primary output plug-in comprises an upper primary output plug-in and a lower primary output plug-in, the upper primary output plug-in is positioned on one side of the rear baffle, which is far away from the upper primary input plug-in, and the lower primary output plug-in is positioned right below the upper primary output plug-in; the connection relationship between the upper primary output plug-in and the lower primary output plug-in is the same as the connection relationship between the upper primary input plug-in and the lower primary input plug-in.
4. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 3, wherein: n copper insertion sheets are arranged in each group of conductive insertion sheets in the upper primary input insertion sheet, the lower primary input insertion sheet, the upper primary output insertion sheet and the lower primary output insertion sheet; the phase inlet end plug and the phase outlet end plug of the low-voltage draw-out switch cabinet correspond to the copper insert sheet structures of the primary input insert piece and the primary output insert piece respectively, and the plugs can be inserted into the copper insert sheets to form electric connection.
5. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 4, wherein: the N is ≧ 1.
6. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 5, wherein: and N is 3.
7. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 1, wherein: the rear baffle is embedded with a secondary plug-in unit which is positioned above the primary output plug-in unit.
8. The conductively stabilized low-voltage draw-out switchgear drawer unit of claim 1, wherein: in the primary input or output card, the conductive elements connecting the conductive units in different primary input or output cards are conductive copper plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022108415.4U CN213278941U (en) | 2020-09-23 | 2020-09-23 | Conductive stable low-voltage draw-out type switch cabinet drawer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022108415.4U CN213278941U (en) | 2020-09-23 | 2020-09-23 | Conductive stable low-voltage draw-out type switch cabinet drawer unit |
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| Publication Number | Publication Date |
|---|---|
| CN213278941U true CN213278941U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022108415.4U Active CN213278941U (en) | 2020-09-23 | 2020-09-23 | Conductive stable low-voltage draw-out type switch cabinet drawer unit |
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|---|---|
| CN (1) | CN213278941U (en) |
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- 2020-09-23 CN CN202022108415.4U patent/CN213278941U/en active Active
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