DTU control cabinet convenient to overhaul

By introducing a side-opening component and a UPS power supply system into the DTU control cabinet, the problems of inconvenient maintenance and inability to work during power outages of existing DTU control cabinets have been solved, realizing the functions of easy maintenance and large-capacity power outage protection.

CN224068155UActive Publication Date: 2026-03-31NANJING MINGLONG ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing DTU control cabinet does not have a side-opening function for easy maintenance, and it cannot continue to work when the power is off.

Method used

The design incorporates a side-opening assembly, including a right-side flap and a left-side flap, connected by hand-tightened bolts to allow the cabinet to be opened and closed from the side. It also utilizes a UPS power supply, rectifier circuit board, inverter, and external battery structure to ensure continuous operation during power outages. A base, bearings, and limit ring structure allow the cabinet to rotate.

Benefits of technology

The DTU control cabinet features a side-opening design for easy maintenance and can continue operating even during power outages, providing a large-capacity backup power supply.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a DTU control cabinet convenient for maintenance, and relates to the DTU control cabinet technology field, the DTU control cabinet comprises a steel cabinet body, the top end in the steel cabinet body is fixedly connected with an acquisition plate, the front end of a front cabinet door is fixedly connected with a control panel, and two sides of the steel cabinet body are provided with side edge opening and closing assemblies convenient for internal maintenance. According to the DTU control cabinet convenient to overhaul, through the arrangement of the right side turning plate, the left side turning plate and the hand-screwing bolt, when the DTU control cabinet convenient to overhaul is used, information is acquired through the acquisition plate, the communication module is used for communicating with a background to transmit information, and when the interior needs to be overhauled, except for opening the front cabinet door, the hand-screwing bolt can be unscrewed and detached, and then the right side turning plate and the left side turning plate are opened; the front, left and right directions of the steel cabinet body are opened, so that the maintenance engineer can operate conveniently, the function that the side edge can be opened to facilitate maintenance is realized, and the problem that the device does not have the function that the side edge can be opened to facilitate maintenance is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to DTU control cabinet technical field, concretely is a DTU control cabinet convenient for overhauling. BACKGROUND

[0002] In the power system, DTU cabinet is mainly used for distribution network automation terminal equipment, and can realize the collection and calculation of position signal, voltage, current, active power, reactive power, power factor and other data of switching equipment, has "three remote" functions, that is, remote measurement, remote signaling and remote control, and can complete distribution line fault positioning, isolation and automatic power recovery functions.

[0003] The current common DTU control cabinet on the overall structure is mostly similar, taking the cabinet body of steel structure as the main body, mainly having four modules of collection board, power module, communication module and terminal row in the inside, and there are some deficiencies in the actual use process, and there is certain improvement space, for example, the cabinet body is generally front opening door, when overhauling the inside, the overhauling personnel is inconvenient to probe into the body, especially the elements installed on the two sides of the cabinet body, and the side opening convenient for overhauling function is not possessed.

[0004] Now, a novel DTU control cabinet convenient for overhauling is provided to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a DTU control cabinet convenient for overhauling to solve the problem of not possessing the side opening convenient for overhauling function in the background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a DTU control cabinet convenient for overhauling, including the cabinet body of steel, the top fixedly connected with the collection board in the inside of the cabinet body of steel, the rear end of the cabinet body of steel is fixedly connected with the rear fixed plate, two groups of terminal rows are installed on the front end of the rear fixed plate, the right side in the inside of the cabinet body of steel is provided with the UPS power supply, the left side in the inside of the cabinet body of steel is provided with the communication module, the left side of the front end of the cabinet body of steel is hinged with the front cabinet door, the front end of the front cabinet door is fixedly connected with the control panel, and the both sides of the cabinet body of steel are provided with the side opening and closing assembly convenient for overhauling the inside.

[0007] The side opening and closing assembly includes a right side flap, the right side flap is hinged at the rear end of the right side of the cabinet body of steel, the rear end of the left side of the cabinet body of steel is hinged with a left side flap, and two groups of hand screw bolts are respectively inserted into the outer sides of the right side flap and the left side flap.

[0008] As a further technical scheme of the utility model, two groups of screw eyes are respectively formed in the inside of the right side flap and the left side flap, and the hand screw bolts pass through the screw eyes and extend into the inside of the cabinet body of steel.

[0009] As a further technical solution of this utility model, the right-side flap and UPS power supply are fixedly connected, and the left-side flap and communication module are fixedly connected.

[0010] As a further technical solution of this utility model, the upper and lower ends of the right side flap, the left side flap, and the front cabinet door are flush, and the thickness of the rear fixing plate, the right side flap, and the left side flap is the same.

[0011] As a further technical solution of this utility model, a rectifier circuit board is fixedly connected inside the UPS power supply, an inverter is provided at the front end of the rectifier circuit board, and multiple sets of external batteries are fixedly connected to the bottom of the steel cabinet.

[0012] As a further technical solution of this utility model, the UPS power supply and the external battery are connected by wires, and the rectifier circuit board, inverter and external battery are electrically connected.

[0013] As a further technical solution of this utility model, a base is provided below the steel cabinet, a bearing is installed at the middle position of the top of the base, a rotating shaft is fixedly connected at the middle position of the bottom of the steel cabinet, a first limiting ring is welded to both sides of the front end of the base, a second limiting ring is welded to both sides of the bottom front end of the steel cabinet, and an L-shaped pin is vertically inserted into the inside of the second limiting ring.

[0014] As a further technical solution of this utility model, the outer side of the rotating shaft and the inner ring of the bearing are fixedly connected, and the L-shaped pin passes through the interior of the second limiting ring and the first limiting ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the DTU control cabinet that is easy to maintain not only realizes the function of side opening for easy maintenance, but also realizes the function of large capacity power failure protection, and also realizes the function of cabinet body rotation;

[0016] (1) With a right-side flap, a left-side flap and a hand-tightening bolt, when in use, the wiring is first connected to the terminal block, and then transferred to the acquisition board. The acquisition board collects information, and the communication module is used to communicate with the background to transmit information. When it is necessary to inspect the interior, in addition to opening the front cabinet door, the hand-tightening bolt can also be loosened and removed. Then the right-side flap and the left-side flap can be opened. The front, left and right sides of the steel cabinet are opened, which is convenient for maintenance engineers to operate. It realizes the function of opening the side for easy maintenance.

[0017] (2) By setting up a UPS power supply, rectifier circuit board, inverter and external battery, the equipment is normally powered by the municipal power grid. The current passes through the rectifier circuit board of the UPS power supply and simultaneously powers the external battery. When the municipal power supply is interrupted, the electrical energy in the external battery is reversed to power the equipment through the inverter. The large-capacity external battery can support the equipment to work continuously for a period of time while waiting for the municipal power supply to be restored, thus realizing the function of large-capacity power outage protection.

[0018] (3) By setting a base, bearing, shaft, first limit ring, L-shaped pin and second limit ring, when it is in use, according to maintenance needs, when it is necessary to adjust the cabinet angle, the two sets of L-shaped pins are pulled out. As the L-shaped pins disengage from the first limit ring and the second limit ring, the steel cabinet can rotate freely. The shaft and bearing make it rotate smoothly, realizing the function of the cabinet body being rotatable. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the front cabinet door of this utility model in the open state;

[0020] Figure 2 This is a front view structural diagram of the side flap of this utility model in the opened state;

[0021] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0022] Figure 4 This is a top view of the base structure of this utility model.

[0023] In the diagram: 1. Steel cabinet; 2. Data acquisition board; 3. Rear fixing plate; 4. Right side flap; 5. Left side flap; 6. Hand-tightening bolt; 7. UPS power supply; 8. Rectifier circuit board; 9. Inverter; 10. External battery; 11. Base; 12. Bearing; 13. Shaft; 14. First limit ring; 15. L-shaped pin; 16. Second limit ring; 17. Front cabinet door; 18. Control panel; 19. Communication module; 20. Terminal block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figures 1-4A DTU control cabinet that is easy to maintain includes a steel cabinet 1. A data acquisition board 2 is fixedly connected to the top of the interior of the steel cabinet 1. A rear fixing plate 3 is fixedly connected to the rear end of the steel cabinet 1. Two sets of terminal blocks 20 are installed at the front end of the rear fixing plate 3. A UPS power supply 7 is provided on the right side of the interior of the steel cabinet 1. A communication module 19 is provided on the left side of the interior of the steel cabinet 1. A front cabinet door 17 is hinged to the left side of the front end of the steel cabinet 1. A control panel 18 is fixedly connected to the front end of the front cabinet door 17. Side opening and closing components that facilitate maintenance are provided on both sides of the steel cabinet 1.

[0026] Please see Figures 1-4 A DTU control cabinet that is easy to maintain also includes a side opening and closing assembly, which includes a right side flap 4, which is hinged to the rear end of the right side of the steel cabinet 1, and a left side flap 5 is hinged to the rear end of the left side of the steel cabinet 1. Two sets of hand-tightening bolts 6 are respectively inserted into the outer sides of the right side flap 4 and the left side flap 5.

[0027] The right-side flip panel 4 and the left-side flip panel 5 each have two sets of screw holes. The hand-tightening bolt 6 passes through the screw holes and extends into the interior of the steel cabinet 1. The right-side flip panel 4 and the UPS power supply 7 are fixedly connected, and the left-side flip panel 5 and the communication module 19 are fixedly connected. The upper and lower ends of the right-side flip panel 4, the left-side flip panel 5 and the front cabinet door 17 are flush. The thickness of the rear fixing plate 3, the right-side flip panel 4 and the left-side flip panel 5 is the same. The sides can be opened for easy maintenance.

[0028] Specifically, such as Figure 2 and Figure 3 As shown, loosen and remove the hand-tightening bolt 6, then open the right-side flip panel 4 and the left-side flip panel 5. The steel cabinet 1 is opened in the front, left, and right directions, making it convenient for maintenance engineers to operate.

[0029] The UPS power supply 7 has a rectifier circuit board 8 fixedly connected inside. An inverter 9 is set at the front end of the rectifier circuit board 8. Multiple external batteries 10 are fixedly connected to the bottom of the steel cabinet 1. There are wires connecting the UPS power supply 7 and the external batteries 10. The rectifier circuit board 8, inverter 9 and external batteries 10 are electrically connected. It can continue to work for a period of time after the power is cut off.

[0030] Specifically, such as Figure 1 and Figure 3 As shown, the current passes through the rectifier circuit board 8 of the UPS power supply 7 and simultaneously supplies power to the external battery 10. When the municipal power supply is interrupted, the electrical energy in the external battery 10 is reversed through the inverter 9 to supply power to the equipment. The large-capacity external battery 10 can support the equipment to work continuously for a period of time while waiting for the municipal power supply to be restored.

[0031] A base 11 is provided at the bottom of the steel cabinet 1. A bearing 12 is installed at the middle position of the top of the base 11. A rotating shaft 13 is fixedly connected at the middle position of the bottom of the steel cabinet 1. First limiting rings 14 are welded to both sides of the front end of the base 11. Second limiting rings 16 are welded to both sides of the bottom front end of the steel cabinet 1. An L-shaped pin 15 is vertically inserted into the inside of the second limiting ring 16. The outside of the rotating shaft 13 is fixedly connected to the inner ring of the bearing 12. The L-shaped pin 15 passes through the inside of the second limiting ring 16 and the first limiting ring 14 to facilitate the rotation of the cabinet body.

[0032] Specifically, such as Figure 1 and Figure 4 As shown, when the two sets of L-shaped pins 15 are pulled out, as the L-shaped pins 15 disengage from the first limiting ring 14 and the second limiting ring 16, the steel cabinet 1 can rotate freely, and the rotating shaft 13 and bearing 12 make its rotation smooth.

[0033] Working Principle: In use, the wiring is first connected to terminal block 20, then to acquisition board 2, which collects information. Communication module 19 is used to communicate with the backend and transmit information. When internal maintenance is required, in addition to opening the front cabinet door 17, the hand-tightening bolt 6 can be loosened and removed. Then, the right-side flip panel 4 and left-side flip panel 5 are opened, opening the steel cabinet 1 from the front, left, and right, facilitating operation by maintenance engineers. The equipment is normally powered by the municipal power grid. Current passes through the rectifier circuit board 8 of the UPS power supply 7, simultaneously powering the external battery 10. When the municipal power supply is interrupted, the energy in the external battery 10 is reversed through inverter 9 to power the equipment. The large-capacity external battery 10 can support the equipment's continuous operation for a period of time, waiting for the municipal power supply to be restored. According to maintenance needs, when it is necessary to adjust the cabinet angle, the two sets of L-shaped pins 15 are pulled out. As the L-shaped pins 15 disengage from the first limiting ring 14 and the second limiting ring 16, the steel cabinet 1 can rotate freely, and the rotating shaft 13 and bearing 12 make its rotation smooth.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A DTU control cabinet facilitating maintenance, comprising a steel cabinet body (1), characterized in that: The top end of the steel cabinet body (1) is fixedly connected with a collection plate (2), the rear end of the steel cabinet body (1) is fixedly connected with a rear fixed plate (3), the front end of the rear fixed plate (3) is provided with two groups of terminal rows (20), the right side of the inside of the steel cabinet body (1) is provided with a UPS power supply (7), the left side of the inside of the steel cabinet body (1) is provided with a communication module (19), the left side of the front end of the steel cabinet body (1) is hingedly connected with a front cabinet door (17), the front end of the front cabinet door (17) is fixedly connected with a control panel (18), and the two sides of the steel cabinet body (1) are provided with side opening and closing assemblies facilitating internal maintenance. The side opening and closing assembly comprises a right side flap (4) which is hingedly connected to the rear end of the right side of the steel cabinet body (1), and a left side flap (5) which is hingedly connected to the rear end of the left side of the steel cabinet body (1), and two groups of hand screws (6) are respectively inserted into the outer sides of the right side flap (4) and the left side flap (5).

2. The DTU control cabinet convenient for maintenance according to claim 1, characterized in that: The inside of the right side flap (4) and the left side flap (5) is respectively provided with two groups of screw eyes, and the hand screws (6) pass through the screw eyes and extend into the inside of the steel cabinet body (1).

3. The DTU control cabinet facilitating maintenance of claim 1, wherein: The right side flap (4) and the UPS power supply (7) are fixedly connected, and the left side flap (5) and the communication module (19) are fixedly connected.

4. The DTU control cabinet for easy maintenance of claim 1, wherein: The upper and lower ends of the right side flap (4), the left side flap (5) and the front cabinet door (17) are flush, and the thicknesses of the rear fixed plate (3), the right side flap (4) and the left side flap (5) are consistent.

5. The DTU control cabinet for easy maintenance of claim 1, wherein: The inside of the UPS power supply (7) is fixedly connected with a rectifier circuit board (8), the front end of the rectifier circuit board (8) is provided with an inverter (9), and the bottom end of the inside of the steel cabinet body (1) is fixedly connected with a plurality of external storage batteries (10).

6. The DTU control cabinet facilitating maintenance of claim 5, wherein: The UPS power supply (7) and the external storage battery (10) are connected by wires, and the rectifier circuit board (8), the inverter (9) and the external storage battery (10) are electrically connected.

7. The DTU control cabinet for ease of maintenance of claim 1, wherein: A base (11) is arranged below the steel cabinet body (1), a bearing (12) is arranged at the middle position of the top end of the base (11), a rotating shaft (13) is fixedly connected to the middle position of the bottom end of the steel cabinet body (1), first limiting insertion rings (14) are respectively welded to the two sides of the front end of the base (11), second limiting insertion rings (16) are respectively welded to the two sides of the bottom of the front end of the steel cabinet body (1), and an L-shaped bolt (15) is vertically inserted into the inside of the second limiting insertion ring (16).

8. The DTU control cabinet facilitating maintenance of claim 7, wherein: The rotating shaft (13) is fixedly connected to the inner ring of the bearing (12), and the L-shaped bolt (15) penetrates the inside of the second limiting insertion ring (16) and the first limiting insertion ring (14).