Terminal structure of power distribution cabinet

Abstract

The utility model relates to a power distribution cabinet terminal structure, which comprises a cabinet body formed by an upper part device cabinet and a lower part isolation cabinet, the back side of the device cabinet is provided with a module board, a plurality of mounting rails are freely spliced and inserted on the module board, and a cabinet door of the device cabinet is provided with a cooling device; array type jacks are distributed on the module board, and an L-shaped hanging strip is arranged on the back side of the module board; a hanger matched with the L-shaped hanging strip is arranged on the inner wall of the back side of the device cabinet; the inner side of the cooling device is provided with an inner discharge port for discharging cold air to the device cabinet and a power supply interface, the outer side of the cooling device is provided with an outer discharge port for dissipating heat to the cabinet body and a thermometer for displaying temperature, and the outer discharge port is covered with a dustproof net. According to the power distribution cabinet terminal structure, through the detachable modular structural design, the power distribution cabinet terminal structure can be integrally detached from the interior of a cabinet, wiring, part replacement, detection and other operations can be carried out outside the cabinet, and meanwhile, the active cooling device occupying a small space is additionally arranged, so that stable operation of control and metering related electric devices in the cabinet is ensured.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet terminal structure, and specifically to a power distribution cabinet terminal structure. Background Technology

[0002] Low-voltage switchgear terminals are the final-stage equipment in a power distribution system. They distribute the power from the upstream switchgear to the nearest loads and provide control, protection, and metering functions for the loads. Existing switchgear terminals suffer from limited internal space, making wiring, component replacement, and device testing difficult during inspection, maintenance, and repair. Furthermore, the cabinet's heat dissipation capacity is constrained by space limitations, leading to high temperatures. Although high-temperature resistant components can be selected for switching devices, control and metering devices may experience signal delays and decreased measurement accuracy under high temperatures. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a power distribution cabinet terminal structure, which is designed with a detachable modular structure, making it easy to remove the entire unit from the cabinet and perform wiring, component replacement, testing and other operations outside the cabinet. This overcomes the limitations of the cabinet space on operation, and at the same time adds an active cooling device with a small space occupation to ensure the stable operation of control and metering related electrical components inside the cabinet.

[0004] This distribution cabinet terminal structure includes a cabinet consisting of an upper component cabinet for installing electrical components and a lower isolation cabinet for raising the cabinet off the ground and storing maintenance tools and a drying oven. The component cabinet has a modular panel on its back, with several mounting rails for installing electrical components freely insertable onto the panel. The cabinet door has a cooling device. The modular panel has an array of sockets, and an L-shaped hanging strip on its back. The mounting rails have tenons on their backs that match the socket sizes, allowing the mounting rails to be freely inserted into the modular panel. The inner wall of the back of the component cabinet has a bracket matching the L-shaped hanging strip, allowing the modular panel to be detachably installed on the inner wall of the back of the component cabinet. The cooling device has an internal exhaust vent for discharging cold air into the component cabinet and a power supply interface on its inner side, and an external exhaust vent for dissipating heat into the cabinet and a temperature gauge on its outer side. The external exhaust vent is covered with a dustproof mesh.

[0005] Specifically, the cooling device is equipped with a discharge mechanism and an integrated hot and cold pipeline, and the integrated hot and cold pipeline is equipped with an actuator.

[0006] Furthermore, the conveying mechanism is located in the center of the cooling device and includes a fan plate conveyor belt with several fan plates installed, a belt shaft for driving the fan plate conveyor belt, and a drive reducer for driving the belt shaft; the integrated hot and cold pipeline includes a heat absorption coil section located in the upper inner part of the conveying mechanism and a condensation coil section located in the lower outer part of the conveying mechanism; the actuator includes a barrel-type turbo compressor, a throttle valve, and a temperature sensor.

[0007] Furthermore, the heat absorption coil section is connected to the condensing coil section via a barrel-type turbo compressor, and the condensing coil section is connected back to the heat absorption coil section via a throttle valve and a temperature sensor.

[0008] Specifically, the drying chamber is filled with sealed desiccant packets in non-woven fabric bags.

[0009] Specifically, the electrical components include main switches, branch switches, thermal relays, contactors, branch / busbar copper busbars, leakage protection devices, surge protectors, thermal relays, current and voltage transformers, and current, voltage, and energy meters.

[0010] This utility model discloses a power distribution cabinet terminal structure, which is designed to be detachable and modular, making it easy to remove from the cabinet as a whole and perform wiring, component replacement, and testing operations from outside the cabinet. This overcomes the limitations of the cabinet space on operations. At the same time, it adds an active cooling device with a small space occupation to ensure the stable operation of control and metering related electrical components inside the cabinet. Attached Figure Description

[0011] The following description, in conjunction with the accompanying drawings, further illustrates a terminal structure for a power distribution cabinet according to this utility model:

[0012] Figure 1 This is a schematic diagram of the terminal structure of this power distribution cabinet;

[0013] Figure 2 yes Figure 1 Structural diagram of the cabinet door in the open state (the lower module panel and mounting rail structure explode and separate).

[0014] Figure 3 This is a schematic diagram of the terminal structure of this power distribution cabinet, viewed from the outside of the cabinet door, and showing the internal structure of the cooling device.

[0015] Figure 4 This is a schematic diagram showing the view from the inside of the terminal structure cabinet door and the internal structure of the cooling device of this power distribution cabinet.

[0016] In the picture:

[0017] 1-Cabinet; 11-Component cabinet; 12-Isolation cabinet; 111-Hanging rack;

[0018] 2-Module board; 21-Socket, 22-Hanging strip;

[0019] 3-Mounting rail; 31-Dowel;

[0020] 4-Cooling device; 41-Internal drain port; 42-Power supply interface; 43-External drain port; 44-Thermometer; 45-Pumping mechanism; 46-Integrated hot and cold piping; 47-Actuator. Detailed Implementation

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0024] Implementation method 1: such as Figure 1 , 2As shown, the terminal structure of this distribution cabinet includes a cabinet body 1 consisting of a component cabinet 11 at the top for installing electrical components and an isolation cabinet 12 at the bottom for raising the cabinet body off the ground and storing maintenance tools and a drying box. The component cabinet 11 has a modular plate 2 on its back, and several mounting rails 3 for installing electrical components are freely inserted into the modular plate 2. The cabinet door of the component cabinet 11 has a cooling device 4. The modular plate 2 has an array of socket holes 21, and an L-shaped hanging strip 22 is provided on the back of the modular plate 2. The mounting rails 3 have tenons 31 on their backs that match the size of the socket holes 21, allowing for insertion... The tenon 31 and the insertion hole 21 cooperate to allow the mounting rail 3 to be freely inserted into the module plate 2; the inner wall of the back side of the device cabinet 11 is provided with a bracket 111 that matches the L-shaped hanging strip 22. Through the cooperation of the bracket 111 and the L-shaped hanging strip 22, the module plate 2 can be detachably installed on the inner wall of the back side of the device cabinet 11; the inner side of the cooling device 4 is provided with an inner exhaust port 41 for discharging cold air to the device cabinet 11 and a power supply interface 42. The outer side of the cooling device 4 is provided with an outer exhaust port 43 for dissipating heat to the cabinet 1 and a temperature gauge 44 for displaying the temperature. The outer exhaust port 43 is covered with a dustproof net.

[0025] Implementation method 2: such as Figure 3 , 4 As shown, the cooling device 4 in the terminal structure of this distribution cabinet is internally equipped with a conveying mechanism 45 and a combined hot and cold pipeline 46. The combined hot and cold pipeline 46 is equipped with an actuator 47. The conveying mechanism 45 is located in the center of the cooling device 4 and includes a fan plate conveyor belt with several fan plates, a belt shaft for driving the fan plate conveyor belt, and a drive reducer for driving the belt shaft. The combined hot and cold pipeline 46 includes a heat absorption coil section located in the upper inner part of the conveying mechanism 45 and a condensation coil section located in the lower outer part of the conveying mechanism 45. The actuator 47 includes a barrel-type turbo compressor, a throttle valve, and a temperature sensor. The heat absorption coil section is connected to the condensation coil section via the barrel-type turbo compressor, and the condensation coil section is connected back to the heat absorption coil section via the throttle valve and the temperature sensor. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0026] Implementation method 3: such as Figure 2 As shown, the drying box in the terminal structure of this distribution cabinet is filled with sealed desiccant packets in non-woven fabric bags. The electrical components include main switches, branch switches, thermal relays, contactors, branch / busbar copper busbars, residual current devices, surge protectors, thermal relays, current and voltage transformers, and current, voltage, and energy meters. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0027] The terminal structure of this distribution cabinet adopts a detachable modular design, which makes it easy to remove the entire unit from the cabinet and perform wiring, component replacement, and testing operations from outside the cabinet. This overcomes the limitations of the cabinet space on operations. At the same time, an active cooling device with a small footprint is added to ensure the stable operation of control and metering related electrical components inside the cabinet.

[0028] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A power distribution cabinet terminal structure, characterized in that: The cabinet (1) consists of a component cabinet (11) at the top for mounting electrical components and an isolation cabinet (12) at the bottom for raising the cabinet off the ground and storing maintenance tools and a drying oven. The component cabinet (11) has a modular plate (2) on its back side, and several mounting rails (3) for mounting electrical components can be freely inserted into the modular plate (2). The cabinet door of the component cabinet (11) is equipped with a cooling device (4). The module board (2) is provided with an array of sockets (21), and the back of the module board (2) is provided with an L-shaped hanging strip (22); the back of the mounting rail (3) is provided with a tenon (31) that matches the size of the socket (21), and the mounting rail (3) can be freely inserted into the module board (2) by the cooperation of the tenon (31) and the socket (21); the inner wall of the back of the device cabinet (11) is provided with a bracket (111) that matches the L-shaped hanging strip (22). The module board (2) is detachably installed on the inner wall of the back side of the device cabinet (11) by the cooperation of the bracket (111) and the L-shaped hanging strip (22); the inner side of the cooling device (4) is provided with an inner exhaust port (41) for discharging cold air to the device cabinet (11) and a power supply interface (42); the outer side of the cooling device (4) is provided with an outer exhaust port (43) for dissipating heat to the cabinet (1) and a temperature gauge (44) for displaying the temperature; the outer exhaust port (43) is covered with a dustproof net.

2. The distribution cabinet terminal structure according to claim 1, characterized in that: The cooling device (4) is equipped with a pumping mechanism (45) and a hot and cold integrated pipeline (46), and the hot and cold integrated pipeline (46) is equipped with an actuator (47).

3. The distribution cabinet terminal structure according to claim 2, characterized in that: The conveying mechanism (45) is located in the center of the cooling device (4) and includes a fan plate conveyor belt with several fan plates installed, a belt shaft for driving the fan plate conveyor belt, and a drive reducer for driving the belt shaft; the integrated hot and cold pipeline (46) includes a heat absorption coil section located on the upper inner side of the conveying mechanism (45) and a condensation coil section located on the lower outer side of the conveying mechanism (45); the actuator (47) includes a barrel-type turbo compressor, a throttle valve, and a temperature sensor.

4. The distribution cabinet terminal structure according to claim 3, characterized in that: The heat absorption coil section is connected to the condensing coil section via a barrel-type turbo compressor, and the condensing coil section is connected back to the heat absorption coil section via a throttle valve and a temperature sensor.

5. The distribution cabinet terminal structure according to any one of claims 1 to 4, characterized in that: The drying chamber is filled with sealed desiccant packets in non-woven fabric bags.

6. The distribution cabinet terminal structure according to any one of claims 1 to 4, characterized in that: The electrical components include main switches, branch switches, thermal relays, contactors, branch / busbar copper busbars, leakage protection devices, surge protectors, thermal relays, current and voltage transformers, and current, voltage, and energy meters.

Images