CN108155593B - Drawer chassis for low-voltage power distribution cabinet - Google Patents
Drawer chassis for low-voltage power distribution cabinet Download PDFInfo
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- CN108155593B CN108155593B CN201810073873.3A CN201810073873A CN108155593B CN 108155593 B CN108155593 B CN 108155593B CN 201810073873 A CN201810073873 A CN 201810073873A CN 108155593 B CN108155593 B CN 108155593B
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- electric connection
- plate
- power distribution
- voltage power
- slideway
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/173—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The invention relates to the technical field of power distribution cabinets, in particular to a drawer chassis for a low-voltage power distribution cabinet, which comprises the following components: the electric connection plates (1) are distributed in at least two layers; the push rod assembly (2) is connected with each layer of the electric connecting plate (1) at a position close to the midpoint between two ends of the electric connecting plate (1); the support component (3) is arranged on the electric connection plate (1) far away from the slideway of the cabinet body and close to the end part, and is used for applying an acting force with the same electric connection direction to the corresponding electric connection plate (1) by means of the supporting force of the adjacent component (4) to the support component (3) when the corresponding electric connection pieces (5) on the electric connection plate (1) are electrically connected. The invention provides a drawer chassis for a low-voltage power distribution cabinet, wherein an electric connector positioned on an upper layer can be accurately spliced with other corresponding electric connectors.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a drawer chassis for a low-voltage power distribution cabinet.
Background
In modern power distribution network and engineering construction, the extraction type low-voltage power distribution cabinet is widely applied to occasions such as power plants, power substations and the like; the power distribution cabinet plays an important role in power distribution, motor control and electric energy conversion, distribution and control of lighting lamp power distribution equipment. The power distribution cabinet has the advantages of space saving, reliable operation, convenient installation and maintenance, strong breaking capacity, multiple outgoing lines and loops and the like. The main circuit connector of the unit drawer in the low-voltage power distribution cabinet consists of a movable connector and a static connector which are matched with each other, and when the low-voltage power distribution cabinet is specifically used, the main circuit connector consists of two groups of movable connectors and static connectors, wherein one group is used as an incoming line connection, and the other group is used as an outgoing line connection. After the movable connector is connected with the static connector in a plugging manner along with the movement of the drawer, the movable connector for incoming wires is connected with an external power supply of the bus, and the movable connector for outgoing wires is connected with the static connector, so that loop connection between the unit drawer and the power distribution cabinet is realized. With the development of electricity demand, the traditional low-voltage drawer cabinet primary plug-in unit only has a one-layer structure, and the functional requirement of power distribution is difficult to meet in limited places and spaces, and particularly the problem that the copper bars of high-current inlet and outlet wires are difficult to fix is solved.
In order to solve the above technical problems, chinese patent document CN205231541U discloses a double-plug drawer cabinet, comprising: the cabinet body and cabinet frame, the lower part of the cabinet body is provided with the spout, be provided with on the cabinet frame with spout complex slide rail, the front end of the cabinet body is provided with first electric connection board, is provided with the second electric connection board on the cabinet frame, and first electric connection board is pegged graft through the double-deck grafting subassembly and the second electric connection board that are used for dispersing electric interface's electric current burden increase through the electric current rating. According to the scheme, although the problem of fixing the copper bars of the high-current incoming and outgoing lines is solved, due to the limitation of the space inside the drawer cabinet and the requirement of the interaction field between the parts, the push rod pushing the first electric connection plate can only be fixed on one side of the first electric connection plate deviating from the center, so that when the push rod applies force, the movable plug on the first electric connection plate is unevenly stressed, especially the movable plugs positioned at the two ends of the upper layer, and the support frame swings around the push rod, so that the uneven stress is more obvious, and the accuracy of the static plug plugging at the corresponding position on the second electric connection plate is affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that a movable plug of the double-plug type power distribution cabinet positioned on the upper layer cannot be accurately plugged with a corresponding static plug in the prior art, so that the drawer chassis for the low-voltage power distribution cabinet, in which an electric connector positioned on the upper layer can be accurately plugged with other corresponding electric connectors, is provided.
In order to solve the technical problem, the invention provides a drawer chassis for a low-voltage power distribution cabinet, which comprises:
the electric connection plates are distributed in at least two layers;
the push rod assembly is connected with each layer of the electric connecting plate at a position close to the midpoint between two ends of the electric connecting plate;
and the supporting component is arranged on the electric connection plate far away from the slideway of the cabinet body and close to the end part, and is used for applying an acting force with the same electric connection direction to the corresponding electric connection plate by means of the supporting force of the adjacent component to the supporting component when the corresponding electric connection pieces on the electric connection plate are electrically connected.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that the supporting component is a supporting plate extending in the direction opposite to the electric connection direction; the adjacent parts are support structures of the slide ways; the support plate is provided with a connecting part fixedly connected with the corresponding electric connecting plate and a sliding part in sliding connection with the support structure of the slideway.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that the sliding part is a stop component which is arranged at one end far away from the electric connection plate.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that the stop component is a convex column and/or a bending part formed on the outer side of the supporting plate.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that the axial direction of the convex column and the bending direction of the bending part are perpendicular to the length direction of the edge of the supporting structure of the slideway below.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that rollers capable of rolling on the edges of the supporting structure of the slideway are arranged on the convex columns.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that the electric connection plate comprises a first fixing plate and a second fixing plate which are arranged in parallel in the vertical direction, and a plurality of electric connection pieces are distributed along the length directions of the first fixing plate and the second fixing plate.
The drawer chassis for the low-voltage power distribution cabinet is characterized in that the push rod assembly comprises a first plate body and a second plate body which are respectively connected with the first fixing plate and the second fixing plate, and a third plate body connected with the first plate body and the second plate body.
The drawer chassis for the low-voltage power distribution cabinet further comprises a push rod body extending along the push-pull direction, wherein the first end of the push rod body is connected with the first plate body and the third plate body, and the second end of the push rod body is connected with the slideway in a sliding mode.
The technical scheme of the invention has the following advantages:
1. according to the drawer chassis for the low-voltage power distribution cabinet, the supporting component is arranged on the electric connection plate far away from the slideway of the cabinet body and close to the end part, so that when electric connection is carried out on electric connection pieces on the corresponding electric connection plates, the supporting component can apply acting force with the same direction as the electric connection direction to the electric connection plates under the action of supporting force of adjacent parts, and uneven stress on the electric connection pieces on the upper layers of the electric connection plates due to uneven force application of the push rod component is effectively prevented, and the phenomenon of accuracy of splicing with the electric connection pieces on other electric connection plates is further affected.
2. The drawer chassis for the low-voltage power distribution cabinet provided by the invention is characterized in that the supporting plate is provided with a connecting part fixedly connected with the corresponding electric connecting plate and a sliding part in sliding connection with the supporting structure of the slideway. Therefore, the electric connection board is supported to a certain extent, the electric connection board is prevented from being inclined under the action of reaction force in the plugging process, and meanwhile, the electric connection board is not influenced to slide along the supporting structure of the slideway, so that the control power distribution cabinet is in different working states.
3. The sliding part is a stop component arranged at one end far away from the electric connecting plate, and the stop component is a convex column and/or a bending part formed at the outer side of the extending part. The push rod assembly is arranged at the upper electric connection plate, the push rod assembly is inserted into the other electric connection plate at the other end of the upper electric connection plate, the other electric connection plate is inserted into the push rod assembly, the other electric connection plate is subjected to a reaction force applied by the other electric connection plate, the reaction force acts on one end of the electric connection plate far away from the push rod assembly, the electric connection plate is possibly inclined to one side, the stop assembly is arranged, the phenomenon is avoided, the stability of the drawer chassis is improved, and the accuracy of inserting the electric connection piece of the electric connection plate into the electric connection piece of the other electric connection plate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a drawer chassis for a low-voltage power distribution cabinet provided by the invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Reference numerals illustrate:
1-an electrical connection board; 2-a push rod assembly; 3-a support assembly; 4-adjacent parts; 5-electrical connectors; a 6-stop assembly; 11-a first fixing plate; 12-a second fixing plate; 21-a first plate; 22-a second plate; 23-a third plate; 24-a push rod body; 31-a connection; 32-a sliding part; 41-a frame; 42-a cross beam frame; 61-convex columns; 62-bend.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
One embodiment of a drawer chassis for a low-voltage power distribution cabinet, as shown in fig. 1, comprises two layers of electric connection plates 1, push rod assemblies 2 of the electric connection plates 1 of each layer and support plates serving as support assemblies 3, wherein the push rod assemblies 2 are connected to the middle points between two ends of the electric connection plates 1.
The two-layered electrical connection plate 1 is composed of a first fixing plate 11 and a second fixing plate 12 which are arranged in a vertical direction and extend horizontally in parallel. Wherein the first fixing plate 11 is arranged close to the slideway of the cabinet body, and the second fixing plate 12 is arranged far away from the slideway of the cabinet body.
The push rod assembly 2 comprises a first plate body 21 and a second plate body 22 which are respectively connected with the first fixing plate 11 and the second fixing plate 12, and a third plate body 23 which is connected with the first plate body 21 and the second plate body 22, wherein the first plate body 21 and the second plate body 22 are horizontal plates, and the third plate body 23 is a vertical plate, and the first plate body, the second plate body and the third plate body are integrally formed. The push rod assembly 2 further comprises a push rod body 24 extending along the push-pull direction, and a first end of the push rod body 24 is connected with the first plate 21 and the third plate 23, and can be connected by welding. The connection point of the push rod assembly 2 and the electrical connection board 1 of each layer is located near the midpoint of the electrical connection board 1 of each layer, and is slightly set to the right in this embodiment, because the electrical connection pieces 5 of each layer are unevenly distributed on the electrical connection board 1, in order to ensure the uniformity of stress, and further ensure the accuracy of plugging, the connection point of the push rod assembly 2 and the electrical connection board 1 needs to be set at a position deviating from the midpoint.
The connecting portion 31 of the support plate is fixedly connected to the end portion near the second fixing plate 12, and the extending portion of the support plate in the direction opposite to the electrical connection direction is a sliding portion 32 formed by the stopper assembly 6. In this embodiment, the stop component 6 is a boss 61 and a bending portion 62 formed on the outer side of the support plate, and the boss 61 and the bending portion 62 are formed in tandem along the sliding direction, so as to provide secondary support, and improve the firmness and stability of support of the support plate. The axial direction of the convex column 61 and the bending direction of the bending part 62 are perpendicular to the length direction of the edge of the support structure of the slideway with the lower part serving as the adjacent part 4, so that a cross-shaped cross support structure is formed, the support structure is more stable, and the convex column 61 and the bending part 62 are tightly attached to the upper surface of the edge of the support structure of the slideway. In this way, when the electrical connection 5 on the second fixing plate 12 is electrically connected, the supporting force of the supporting plate is applied to the corresponding electrical connection plate 1 by the supporting structure of the slideway, and the acting force is applied to the corresponding electrical connection plate in the same direction as the electrical connection.
In this embodiment, six movable plugs are mounted on the first fixing plate 11 and the second fixing plate 12, and are aligned vertically. The supporting structure of the slideway comprises a pair of frame bodies 41 extending along the drawing direction and a cross beam frame 42 vertically arranged at one end of the frame bodies 41, and the electric connection plate 1 reciprocates along the slideway on the supporting structure under the push-pull action of the push rod assembly 2 and is electrically connected with static plugs on other electric connection plates 1 when moving into the cross beam frame 42.
The second end of the push rod body 24 is slidably connected with the slideway arranged on the beam frame 42, and the second end of the push rod body 24 is connected with a driving handle to apply force to the push rod body 24, so as to push and pull the electrical connection board 1.
When a plurality of movable plugs on the two-layer electric connection plates 1 are required to be electrically connected with static plugs on other electric connection plates 1, the push rod body 24 is forced by means of the driving handle, so that the push rod body pushes the two-layer electric connection plates 1 to slide towards the other electric connection plates 1 to be connected along the sliding way on the beam frame 42 until the movable plugs move into the beam frame 42, the force is continuously applied, and the movable plugs are spliced with the corresponding static plugs. In the plugging process, the movable plug on the second fixing plate 12 positioned on the upper layer is supported by the supporting plate arranged at the end part of the movable plug and the frame 41 extending along the drawing direction, namely the acting force which is provided in the same direction as the electric connection direction can enable the movable plug to be plugged with the corresponding static plug at the same time, so that the problem that the movable plug and the static plug positioned at the two ends of the second fixing plate 12 on the upper layer cannot be plugged synchronously due to uneven stress of the first fixing plate 11 and the second fixing plate 12 caused by the fact that the connection point of the first plate body 21 and the second plate body 22 of the push rod assembly 2 and the first fixing plate 11 and the second fixing plate 12 is positioned at the right side of the middle point is avoided; meanwhile, the protruding columns 61 and the bending parts 62 formed on the outer side of the supporting plate are distributed back and forth along the edge of the frame 41, so that the supporting effect of the supporting plate on the second fixing plate 12 is further improved, and the protruding columns 61 and the bending parts 62 are arranged on the upper surface of the frame 41 and are in sliding connection with the frame 41, so that the normal sliding of the electric connection plate 1 along the slideway is not influenced.
As an alternative embodiment, the stop assembly 6 may be a boss 61 or a bent portion 62 formed only on the outside of the support plate. If necessary, rollers are provided on the studs 61 which can roll on the edges of the support structure of the slideway.
As an alternative embodiment, the supporting component 3 may also be a supporting rod extending in a direction opposite to the electrical connection direction, one end of the supporting rod is fixedly connected with the electrical connection board 1, and the other end is formed with a slot, and the slot is inserted into an edge of the sliding supporting structure to realize sliding connection.
As an alternative embodiment, the adjacent elements 4 may also be cross members inside the cabinet panel, or other elements of the panel that may exert a supporting force.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (6)
1. A drawer chassis for a low voltage power distribution cabinet, comprising:
the electric connection plates (1) are distributed in at least two layers;
the push rod assembly (2) is connected with each layer of the electric connecting plate (1) at a position close to the midpoint between two ends of the electric connecting plate (1);
it is characterized in that the method comprises the steps of,
the supporting component (3) is arranged on the electric connection plate (1) far away from the slideway of the cabinet body and close to the end part, and is used for applying an acting force with the same direction as the electric connection to the corresponding electric connection plate (1) by means of the supporting force of the adjacent component (4) to the supporting component (3) when the electric connection pieces (5) on the corresponding electric connection plates (1) are electrically connected;
the supporting component (3) is a supporting plate extending in the direction opposite to the electric connection direction; the adjacent part (4) is a supporting structure of the slideway; the support plate is provided with a connecting part (31) fixedly connected with the corresponding electric connecting plate (1) and a sliding part (32) in sliding connection with the support structure of the slideway;
the electric connection board (1) comprises a first fixing board (11) and a second fixing board (12) which are arranged in parallel in the vertical direction, a plurality of electric connection pieces (5) are distributed along the length direction of the first fixing board (11) and the second fixing board (12), and the push rod assembly (2) comprises a first board body (21) and a second board body (22) which are respectively connected with the first fixing board (11) and the second fixing board (12), and a third board body (23) which is connected with the first board body (21) and the second board body (22);
the supporting structure of the slideway comprises a pair of frame bodies (41) extending along the drawing direction and a beam frame (42) vertically arranged at one end of the frame bodies (41), and the electric connecting plate (1) reciprocates along the slideway on the supporting structure under the push-pull action of the push rod assembly (2) and is electrically connected with static plugs on other electric connecting plates (1) when moving into the beam frame (42).
2. Drawer chassis for low-voltage power distribution cabinets according to claim 1, characterized in that the slide (32) is a stop assembly (6) arranged at the end remote from the electrical connection plate (1).
3. Drawer chassis for low-voltage power distribution cabinets according to claim 2, characterized in that the stop assembly (6) is a boss (61) and/or a bend (62) formed outside the support plate.
4. A drawer chassis for a low-voltage power distribution cabinet according to claim 3, characterized in that the axial direction of the protruding column (61) and the bending direction of the bending part (62) are perpendicular to the length direction of the edge of the supporting structure of the slideway below.
5. Drawer chassis for low-voltage power distribution cabinets according to claim 4, characterized in that on the studs (61) there are rollers that can roll on the edges of the support structure of the slideway.
6. The drawer chassis for a low-voltage power distribution cabinet according to claim 1, further comprising a push rod body (24) extending in a push-pull direction, wherein a first end of the push rod body (24) is connected to the first plate body (21) and the third plate body (23), and a second end is slidably connected to the slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073873.3A CN108155593B (en) | 2018-01-25 | 2018-01-25 | Drawer chassis for low-voltage power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073873.3A CN108155593B (en) | 2018-01-25 | 2018-01-25 | Drawer chassis for low-voltage power distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN108155593A CN108155593A (en) | 2018-06-12 |
| CN108155593B true CN108155593B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810073873.3A Active CN108155593B (en) | 2018-01-25 | 2018-01-25 | Drawer chassis for low-voltage power distribution cabinet |
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| CN207967753U (en) * | 2018-01-25 | 2018-10-12 | 温州隆森电气有限公司 | A kind of low-voltage distribution cabinet drawer chassis |
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| CN108155593A (en) | 2018-06-12 |
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Effective date of registration: 20210518 Address after: No. 433, Jinhai Avenue, economic and Technological Development Zone, Longwan District, Wenzhou City, Zhejiang Province 325000 Applicant after: WENZHOU DEYUAN ELECTRIC Co.,Ltd. Address before: No. 433, Jinhai Avenue, Wenzhou Economic and Technological Development Zone, 325000, Zhejiang Province Applicant before: WENZHOU LONGSEN ELECTRIC Co.,Ltd. |
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