Bus residual voltage holding cabinet

Abstract

The utility model relates to the technical field of electric power system protection, and provides a bus residual voltage maintaining cabinet, which comprises a cabinet body, the cabinet body comprises a cabinet door, a mounting piece capable of moving towards the cabinet door is arranged in the cabinet body, a support plate is rotatably arranged on the mounting piece, a residual voltage maintaining assembly is arranged on the support plate, and the residual voltage maintaining assembly is arranged on the cabinet door. The bus residual voltage holding cabinet further comprises a positioning assembly used for fixing the support plate in the cabinet body. Firstly, the cabinet door is opened, the mounting part moves towards the cabinet door to drive the support plate to move out of the cabinet body correspondingly, the residual voltage maintaining assembly is checked, maintained, subjected to fault processing and the like outside the cabinet body, and the support plate can be rotated to adjust the angle of the residual voltage maintaining assembly so as to facilitate operation. The problems of sight blocking, inconvenient operation and the like caused by limitation of the internal space of the cabinet body are effectively solved, so that the overhaul and maintenance efficiency and thoroughness are improved, and potential safety hazards are completely eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to power system protection technical field, concretely is a bus residual voltage keeping cabinet. BACKGROUND

[0002] In the field of power system protection technology, the bus residual voltage keeping cabinet as one of the key equipment, undertakes ensuring that the power system can maintain a certain residual voltage under the fault or abnormal condition, to guarantee the system stability and equipment safety, is directly related to the operation safety of the whole power system.

[0003] At present, the residual voltage keeping assembly (including energy storage unit, fast switching device, control protection unit etc.) is usually integrated in the cabinet body, due to the limited space in the cabinet body, when the maintenance personnel carry out the periodic inspection, maintenance or fault handling of the residual voltage keeping assembly, often face the problems such as small operation space, obstructed vision, not only increase the difficulty of maintenance work, also reduce the efficiency of maintenance, even may cause incomplete maintenance due to inconvenient operation, leave safety hidden danger.

[0004] Therefore, the utility model provides a bus residual voltage keeping cabinet to solve the above problems. UTILITY MODEL CONTENT

[0005] The embodiment of the utility model aims at providing a bus residual voltage keeping cabinet to solve the above problems.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A bus residual voltage keeping cabinet, including cabinet body, the cabinet body includes cabinet door, the cabinet body is equipped with the mounting piece that can move towards the direction of cabinet door, the mounting piece is equipped with the support plate that rotates, the support plate is equipped with residual voltage keeping assembly, the bus residual voltage keeping cabinet still includes the positioning assembly for making the support plate fixed in the cabinet body.

[0008] In an alternative scheme: the residual voltage keeping assembly includes energy storage unit, fast switching device, control protection unit.

[0009] In an alternative scheme: the cabinet body is equipped with the lead screw that is axially perpendicular to the cabinet door and several slide rods, the lead screw is in the form of screw thread cooperation and is passed through the mounting piece, and the first bevel gear is arranged on the lead screw, the slide rod is movably passed through the slide rod, the cabinet body is rotatably equipped with the rotating shaft on one side, the rotating shaft is equipped with the second bevel gear that is engaged with the first bevel gear on the one end in the cabinet body, and the hand wheel is arranged on the one end outside the cabinet body.

[0010] In an alternative, the bracket plate is rotatably arranged on the mounting member through a mounting shaft, the positioning assembly comprises a positioning pin slidably arranged on the mounting member and a plurality of limiting bosses arranged in the cabinet body, the mounting shaft is provided with a pin hole matched with the positioning pin, a plurality of elastic members are arranged between the positioning pin and the mounting member, the bracket plate is provided with a bolt corresponding to each limiting boss, and the limiting boss is provided with a bolt hole matched with the limiting boss.

[0011] In an alternative, the cabinet body is provided with a plurality of wire passing holes for cables to pass through to be connected with the residual voltage maintaining assembly, and each wire passing hole is provided with a wire arranging assembly for arranging the cables.

[0012] In an alternative, the wire arranging assembly comprises a wire storage box and a guide pipe arranged on the wire storage box, the end of the guide pipe away from the wire storage box is communicated with the wire passing hole, two wire guide wheels for clamping the cables are rotatably arranged in the wire storage box, a coil spring is arranged at the center of each wire guide wheel, and the wire storage box is further provided with a wire inlet hole.

[0013] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows:

[0014] First, open the cabinet door, move the mounting member towards the cabinet door to drive the corresponding bracket plate to move out of the cabinet body, and perform operations such as inspection, maintenance, fault handling, etc. on the residual voltage maintaining assembly outside the cabinet body, and the bracket plate can be rotated to adjust the angle of the residual voltage maintaining assembly to facilitate operation, effectively solving the problems of blocked view, inconvenient operation, etc. caused by the limitation of the internal space of the cabinet body, thereby improving the efficiency and thoroughness of maintenance and repair, and eliminating potential safety hazards.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments in accordance with the present application and, together with the description, serve to explain the principles of the application. In no way are these drawings to be taken to limit the scope of the concept of the present application as set forth in the claims.

[0017] Figure 1 is a structural schematic view of the embodiments of the present application.

[0018] Figure 2 is Figure 1 is an enlarged view of position A in FIG.

[0019] Figure 3 is a schematic view of the arrangement between the mounting member and the bracket plate in the embodiments of the present application.

[0020] Figure 4 For Figure 3 Enlarged view at B.

[0021] Figure 5 For the internal schematic diagram of the cabinet body in the embodiment of the utility model.

[0022] Figure 6 For the structural schematic diagram of the wire arrangement assembly in the embodiment of the utility model.

[0023] Reference signs annotation: 1-cabinet body, 2-support plate, 3-residual voltage maintaining assembly, 4-mounting piece, 5-sliding rod, 6-limiting boss, 7-bolt, 8-positioning pin, 9-elastic piece, 10-bolt hole, 11-wire arrangement assembly, 1101-wire storage box, 1102-guide pipe, 1103-wire guide wheel, 1104-spring, 1105-wire inlet hole, 12-screw rod, 13-first bevel gear, 14-second bevel gear, 15-rotation shaft, 16-hand wheel, 17-mounting shaft, 18-pin hole, 19-cable, 20-wire passing hole. DETAILED DESCRIPTION

[0024] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application, and the skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0025] Please refer to Figure 1 A bus residual voltage maintaining cabinet, comprising a cabinet body 1, the cabinet body 1 comprises a cabinet door (not shown in the figure), the cabinet body 1 is provided with a mounting piece 4 movable towards the cabinet door direction, the mounting piece 4 is provided with a support plate 2 rotating thereon, the support plate 2 is provided with a residual voltage maintaining assembly 3, and the bus residual voltage maintaining cabinet further comprises a positioning assembly for fixing the support plate 2 in the cabinet body 1.

[0026] It should be noted that the residual voltage maintaining assembly 3 comprises an energy storage unit (usually a large-capacity capacitor or super capacitor is used as energy storage, which can release the stored electric energy within milliseconds to compensate for voltage sag), a fast switching device (an integrated electronic switch or a high-speed contactor combined with a high-precision voltage sensor to monitor the bus state in real time, when the voltage drop is detected to be below the preset threshold, the power switching logic is triggered immediately, and the standby power supply circuit is seamlessly connected), a control protection unit (dynamic adjustment and fault judgment are realized through a microprocessor or a programmable controller, and the execution of energy storage release, switching action and protection strategy is coordinated synchronously) and the like, which are prior art, so the specific structure and connection relationship of the residual voltage maintaining assembly 3 will not be described here.

[0027] First open the cabinet door, through the installation piece 4 to the cabinet door direction moves the bracket plate 2 corresponding to the removal of the cabinet 1, to the cabinet 1 outside to the residual pressure maintaining assembly 3 carries out the inspection, maintenance, fault processing etc., and can rotate the bracket plate 2 and then adjust the residual pressure maintaining assembly 3 angle to facilitate operation, effectively solve the space restriction caused by the cabinet 1 inside view is blocked, inconvenient operation etc., thereby improve the repair and maintenance efficiency and thoroughness, eliminate the security risks left.

[0028] Please refer to Figures 1-3 In an embodiment of the utility model, the cabinet 1 is equipped with a lead screw 12 and several slide rods 5 which are perpendicular to the cabinet door, the lead screw 12 is threaded through the installation piece 4, and the lead screw 12 is equipped with a first bevel gear 13, the slide rod 5 is movably threaded through the slide rod 5, one side of the cabinet 1 is rotatably equipped with a rotating shaft 15, one end of the rotating shaft 15 inside the cabinet 1 is equipped with a second bevel gear 14 which is engaged with the first bevel gear 13, and the other end of the rotating shaft 15 outside the cabinet 1 is equipped with a hand wheel 16.

[0029] In this embodiment, under the engagement and transmission of the first bevel gear 13 and the second bevel gear 14, the lead screw 12 is rotated through the hand wheel 16, the installation piece 4 is moved towards the cabinet door and reset through the rotation of the lead screw 12, that is, the bracket plate 2 is moved out of the cabinet 1 and reset in the cabinet 1.

[0030] Please refer to Figure 1 、 Figure 3 and Figure 4 In an embodiment of the utility model, the bracket plate 2 is rotatably arranged on the installation piece 4 through a mounting shaft 17, the positioning assembly includes a positioning pin 8 which is slidably inserted into the installation piece 4 and several limiting bosses 6 which are arranged in the cabinet 1, the mounting shaft 17 is equipped with a pin hole 18 which is matched with the positioning pin 8, several elastic members 9 (the elastic members 9 are springs, elastic ropes, etc. in the prior art, which are not limited in this embodiment) are arranged between the positioning pin 8 and the installation piece 4, the bracket plate 2 is equipped with a bolt 7 which is matched with the limiting boss 6, and the limiting boss 6 is equipped with a bolt hole 10 which is matched with the limiting boss 6.

[0031] In the embodiment, when the support plate 2 needs to be moved out of the cabinet 1, the bolts 7 are first rotated to be separated from the corresponding bolt holes 10, and then the subsequent operation of moving the support plate 2 out of the cabinet 1 is performed; when the support plate 2 needs to be rotated, the positioning pin 8 is held and pulled away from the mounting part 4 to make the end of the positioning pin 8 disengage from the pin hole 18, so that the support plate 2 can be rotated to adjust the angle; when the angle of the support plate 2 is reset, the end of the positioning pin 8 is automatically inserted into the pin hole 18 under the action of the elastic members 9 to preliminarily position the support plate 2; after the support plate 2 is reset into the cabinet 1 (when the support plate 2 contacts and abuts against the limiting boss 6, it means that the reset is completed), the bolts 7 are tightened to completely position the support plate 2.

[0032] Please refer to Figure 5 and Figure 6 In an embodiment of the utility model, the cabinet 1 is provided with a plurality of wire passing holes 20 for cables to pass through to be connected with the residual voltage maintaining assembly 3; each wire passing hole 20 is provided with a wire arranging assembly 11 for arranging the cables.

[0033] The wire arranging assembly 11 comprises a wire storage box 1101 and a guide pipe 1102 arranged on the wire storage box 1101; one end of the guide pipe 1102 away from the wire storage box 1101 is communicated with the wire passing hole 20; two wire guide wheels 1103 for clamping the cables are rotatably arranged in the wire storage box 1101, and a coil spring 1104 is arranged at the center of each wire guide wheel 1103; the wire storage box 1101 is further provided with a wire inlet hole 1105.

[0034] In the embodiment, one end of the cable passes through the wire passing hole 20 to be connected with the residual voltage maintaining assembly 3; in order to meet the requirement of moving the residual voltage maintaining assembly 3 out of the cabinet 1 by the support plate 2, the cable must be reserved with a certain length to meet the requirement; in order to avoid the cable being tangled, the wire arranging assembly 11 is arranged to collect and arrange the reserved part of the cable; when the support plate 2 is located in the cabinet 1, the reserved part of the cable is concentrated in the wire storage box 1101 to avoid the cable being tangled; when the support plate 2 is moved, the cable is continuously moved out of the wire storage box 1101 by being pulled; in this process, the two wire guide wheels 1103 are rotated with the cable being pulled, and the corresponding coil spring 1104 is pre-tightened and stored energy; when the support plate 2 is reset, the two wire guide wheels 1103 are reversely rotated and reset under the action of the coil spring 1104, so that the cable is recovered into the wire storage box 1101.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A bus residual voltage maintaining cabinet comprising a cabinet body (1) including a cabinet door, characterized in that, The cabinet body (1) is provided with a mounting part (4) which can move towards the cabinet door direction, a support plate (2) is rotatably arranged on the mounting part (4), a residual voltage maintaining assembly (3) is arranged on the support plate (2), and the bus residual voltage maintaining cabinet further comprises a positioning assembly for fixing the support plate (2) in the cabinet body (1).

2. The bus residual voltage retaining tank according to claim 1, characterized by The residual voltage maintaining assembly (3) comprises an energy storage unit, a quick switching device and a control protection unit.

3. The bus residual voltage retaining cabinet according to claim 1, characterized by The cabinet body (1) is provided with a screw rod (12) which is axially perpendicular to the cabinet door and a plurality of slide rods (5), the screw rod (12) penetrates the mounting part (4) in a threaded manner, a first bevel gear (13) is arranged on the screw rod (12), the slide rod (5) movably penetrates the slide rod (5), a rotating shaft (15) is rotatably arranged on one side of the cabinet body (1), one end of the rotating shaft (15) located inside the cabinet body (1) is provided with a second bevel gear (14) which is engaged with the first bevel gear (13), and one end of the rotating shaft (15) located outside the cabinet body (1) is provided with a hand wheel (16).

4. The bus residual voltage retaining tank according to claim 1, characterized by The support plate (2) is rotatably arranged on the mounting part (4) through a mounting shaft (17), the positioning assembly comprises a positioning pin (8) which is slidably arranged on the mounting part (4) and a plurality of limiting bosses (6) arranged in the cabinet body (1), the mounting shaft (17) is provided with a pin hole (18) which is matched with the positioning pin (8), a plurality of elastic members (9) are arranged between the positioning pin (8) and the mounting part (4), the support plate (2) is provided with a bolt (7) which is matched with the limiting boss (6), and the limiting boss (6) is provided with a bolt hole (10) which is matched with the limiting boss (6).

5. The bus residual voltage retaining cabinet according to claim 1, characterized by A plurality of wire passing holes (20) are arranged on the cabinet body (1) for cables to pass through and be connected with the residual voltage maintaining assembly (3), and a wire arranging assembly (11) for arranging the cables is arranged at each wire passing hole (20).

6. The bus residual voltage retaining tank according to claim 5, characterized by The wire arranging assembly (11) comprises a wire storage box (1101) and a guide pipe (1102) arranged on the wire storage box (1101), one end of the guide pipe (1102) away from the wire storage box (1101) is communicated with the wire passing hole (20), two wire guide wheels (1103) for clamping the cables are rotatably arranged in the wire storage box (1101), a coil spring (1104) is arranged at the center of each wire guide wheel (1103), and a wire inlet hole (1105) is further arranged on the wire storage box (1101).

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