Low-voltage electrical load prediction switch cabinet

Abstract

The utility model relates to the technical field of switch cabinets, in particular to a low-voltage electrical load prediction switch cabinet which comprises a switch cabinet body internally provided with an electrical load prediction control system, a cabinet door is hinged to the outer side of the switch cabinet body, an inward-concave type supporting frame is fixedly connected into the switch cabinet body, and the inner side of the cabinet body is provided with a support. Wiring notches are formed in the two sides of the inwards-concave type supporting frame, a detachable sealing top cover is arranged at the top of the inwards-concave type supporting frame, a fixing plate is arranged in the inwards-concave type supporting frame and used for bearing electrical elements, a plurality of fixing holes are evenly formed in the fixing plate, and the sealing top cover is arranged on the top of the inwards-concave type supporting frame. According to the utility model, the closed top cover can be horizontally taken out, and the fixed plate can be horizontally pulled out, so that other equipment can be conveniently installed in the switch cabinet body, and when the operable space in the switch cabinet body is not enough, the switch cabinet body can be conveniently taken out, so that the switch cabinet body can be conveniently installed. The sensor is installed and replaced on the outer side of the switch cabinet body.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, specifically a low-voltage power load prediction switchgear. Background Technology

[0002] A switch cabinet is an electrical device. External lines first enter the main control switch inside the cabinet, and then enter the branch control switches. Inside the switch cabinet, a control system can be installed to predict low-voltage power load.

[0003] The added control system, such as the intelligent power distribution switchgear control system proposed in the prior art patent application number "CN201811641821.8", consists of a circuit breaker, an actuator, a monitoring host, a communication unit, a control unit, a power supply unit, a display screen, a DSP unit, a storage unit, an audible and visual alarm unit, a phase angle difference detection unit, a sensor circuit, and an analog-to-digital conversion unit.

[0004] However, in the existing technology, switch cabinets with internal control systems for low-voltage load prediction need to install various sensors, including load current sensors, load voltage sensors, and temperature sensors. In order to avoid damage to the sensors caused by collisions during the installation of subsequent equipment, a relatively enclosed sensor installation area can be set up separately. However, the subsequent equipment installation can easily occupy the internal space of the switch cabinet, resulting in insufficient operating space for the sensor installation area inside the switch cabinet, which is not conducive to the later installation and replacement of sensors. Utility Model Content

[0005] The purpose of this utility model is to provide a low-voltage power load prediction switchgear to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A low-voltage power load prediction switch cabinet includes a switch cabinet body with an internal power load prediction and control system. A cabinet door is hinged to the outside of the switch cabinet body. A recessed support frame is fixedly connected inside the switch cabinet body. Cable routing slots are provided on both sides of the recessed support frame. A removable closed top cover is provided on the top of the recessed support frame.

[0008] The recessed support frame has a fixing plate inside, which is used to support electrical components. The fixing plate has multiple fixing holes evenly distributed. Limiting plates are fixedly connected to both sides of the inner wall of the recessed support frame and above the fixing plate. A positioning rubber strip is fixedly connected to the top of the limiting plate. The top of the positioning rubber strip has a linear array of wire-clamping grooves to assist in positioning the wires that extend into the recessed support frame.

[0009] Preferably, the top of the limiting plate is provided with a fixing bolt, the bottom of which passes through the fixing plate and is threadedly connected to the concave support frame, for fixing the fixing plate to the inside of the concave support frame.

[0010] Preferably, the bottom of the concave support frame is provided with a limiting groove, and the bottom of the fixing plate is fixedly connected to a limiting protrusion, with the limiting groove and the limiting protrusion slidably connected.

[0011] Preferably, the bottom of the closed top cover is fixedly connected to two inner limiting plates, which are respectively attached to the two sides of the inner wall of the concave support frame. A support block is fixedly connected between the concave support frame and the switch cabinet body.

[0012] Preferably, a positioning block is fixedly connected to the top of the concave support frame, a movable slot is provided on one side of the positioning block, a tension spring is fixedly connected inside the positioning block, a pressing block is fixedly connected to the top of the tension spring and located inside the movable slot, and the bottom of the pressing block is inclined.

[0013] Preferably, a guide shaft is fixedly connected inside the movable slot, and the guide shaft and the clamping block are slidably connected.

[0014] The beneficial effects of this utility model are:

[0015] I. This utility model utilizes a concave support frame to mount some sensors in a control system used for electrical load prediction onto a fixed plate. A closed top cover then seals the top of the concave support frame, providing protection for the sensors and preventing damage from accidental collisions during installation. Furthermore, it ensures that the sensors do not directly contact the switchgear cabinet, preventing the heat conducted from the cabinet from directly affecting the sensors.

[0016] Second, in this utility model, the closed top cover can be removed horizontally, and the fixing plate can be pulled out horizontally, which facilitates the installation of other equipment inside the switch cabinet. When the operating space inside the switch cabinet is insufficient, the sensor can be installed or replaced on the outside of the switch cabinet. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1Schematic diagram of the concave support frame;

[0020] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a utility model Figure 2 A schematic diagram of the bottom structure of the concave support frame;

[0022] Figure 5 This is a utility model Figure 2 A schematic diagram of the internal structure of the concave support frame;

[0023] Figure 6 This is a utility model Figure 2 A cross-sectional view of the central positioning block.

[0024] The attached figures are labeled as follows:

[0025] 1. Switch cabinet body; 101. Cabinet door; 2. Recessed support frame; 201. Cable routing groove; 3. Enclosed top cover; 4. Fixing plate; 401. Fixing hole; 5. Limiting plate; 6. Positioning rubber strip; 601. Cable clamping groove; 7. Fixing bolt; 8. Limiting slide groove; 9. Limiting protrusion; 10. Inner limiting plate; 11. Support block; 12. Positioning block; 13. Movable groove; 14. Tension spring; 15. Clamping block; 16. Guide shaft. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 and Figure 2A low-voltage power load prediction switchgear includes a switchgear cabinet 1 with an internal power load prediction control system. The power load prediction control system inside the switchgear cabinet 1 is prior art, disclosed in the intelligent power distribution switchgear control system and power load prediction method proposed in patent application number "CN201811641821.8". The power load prediction control system includes multiple sensors such as load current sensor, load voltage sensor, and temperature sensor. A cabinet door 101 is hinged to the outside of the switchgear cabinet 1. A recessed support frame 2 is fixedly connected inside the switchgear cabinet 1. Both sides of the recessed support frame 2 are provided with cable routing slots 201. A detachable closed top cover 3 is provided on the top of the recessed support frame 2. The top of the closed top cover 3 has ventilation slots.

[0028] like Figure 2 and Figure 5 The recessed support frame 2 has a fixing plate 4 inside, which is used to support electrical components. The fixing plate 4 has multiple fixing holes 401 evenly distributed on it, so that the sensor can be installed on the fixing plate 4 through the fixing holes 401. The two sides of the inner wall of the recessed support frame 2 and the upper part of the fixing plate 4 are fixedly connected to the limiting carrier plate 5, which can limit the upward movement of the fixing plate 4.

[0029] A positioning rubber strip 6 is fixedly connected to the top of the limiting carrier plate 5. The top of the positioning rubber strip 6 has a linear array of wire-holding grooves 601, which are used to assist in positioning the wires that extend into the concave support frame 2. When the sensor is installed on the fixed plate 4, the external wires can extend into the concave support frame 2 and connect to the sensor through the wire routing groove 201. The wires that extend into the concave support frame 2 through the wire routing groove 201 can be respectively inserted into different wire-holding grooves 601, which can prevent the wires from becoming tangled.

[0030] like Figure 2 and Figure 5 The top of the limiting plate 5 is provided with a fixing bolt 7. The height of both the limiting plate 5 and the fixing bolt 7 does not exceed the height of the wiring groove 201. The bottom of the fixing bolt 7 passes through the fixing plate 4 and is threadedly connected to the concave support frame 2. It is used to fix the fixing plate 4 to the inside of the concave support frame 2. The inner wall of the concave support frame 2 has a screw hole, which can realize the threaded connection with the fixing bolt 7.

[0031] like Figure 2 and Figure 4 The concave support frame 2 has a limiting groove 8 at its bottom, and a limiting protrusion 9 is fixedly connected to the bottom of the fixing plate 4. The limiting groove 8 and the limiting protrusion 9 are slidably connected to ensure that the concave support frame 2 will not slide left or right.

[0032] like Figure 2 and Figure 3The bottom of the closed top cover 3 is fixedly connected to two inner limiting plates 10. The two inner limiting plates 10 are respectively attached to the two sides of the inner wall of the concave support frame 2 to ensure that the closed top cover 3 will not move left and right. A support block 11 is fixedly connected between the concave support frame 2 and the switch cabinet body 1 to support the concave support frame 2.

[0033] like Figure 2 and Figure 6 The top of the concave support frame 2 is fixedly connected to a positioning block 12. One side of the closed top cover 3 has an opening, allowing the top of the positioning block 12 to pass through the closed top cover 3. A movable slot 13 is provided on one side of the positioning block 12. A tension spring 14 is fixedly connected inside the positioning block 12. A pressing block 15 is fixedly connected to the top of the tension spring 14 and located inside the movable slot 13. The bottom of the pressing block 15 is inclined. The tension spring 14 applies a downward pulling force to the pressing block 15, and the pressing block 15 presses against the top of the closed top cover 3 to prevent the closed top cover 3 from moving upward.

[0034] like Figure 2 and Figure 6 A guide shaft 16 is fixedly connected inside the movable slot 13. The guide shaft 16 and the clamping block 15 are slidably connected to ensure that the clamping block 15 will not detach from the movable slot 13 while it is moving.

[0035] The working principle of the low-voltage power load prediction switchgear provided by this utility model is as follows:

[0036] After the sensor is installed on the mounting plate 4, the external wiring can pass through the wiring slot 201 and connect to the sensor. Then, the closed top cover 3 is slid horizontally to the top of the concave support frame 2. The closed top cover 3 presses against the inclined surface of the clamping block 15, causing the clamping block 15 to move upward. The closed top cover 3 moves smoothly to below the clamping block 15. Under the tension of the tension spring 14, the clamping block 15 presses the closed top cover 3 tightly, enclosing the sensor inside the concave support frame 2 and providing anti-collision protection for the sensor.

[0037] When it is necessary to replace the sensor, the outer side of the switch cabinet 1 can be horizontally pulled out of the closed top cover 3. If no other equipment is installed above the recessed support frame 2, there is enough operating space, and the sensor can be installed and replaced directly on the fixing plate 4.

[0038] If other equipment is installed above the recessed support frame 2 and there is not enough operating space, the fixing bolt 7 can be removed, and all wires and sensors can be separated. The fixing plate 4 can be pulled outward from the recessed support frame 2 so that part of the fixing plate 4 can move to the outside of the switch cabinet 1. The sensor can be installed or replaced on the outside of the switch cabinet 1.

[0039] After the sensor installation and replacement are completed, push the fixing plate 4 into the concave support frame 2 and fix it with the fixing bolts 7. Then connect the external wires and finally slide the top cover 3 horizontally to seal the top of the concave support frame 2.

[0040] Compared with related technologies, the low-voltage power load prediction switchgear provided by this utility model has the following beneficial effects:

[0041] This invention protects the sensors by mounting some sensors in the control system used for electrical load prediction on the fixing plate 4 inside the recessed support frame 2, and then using the closed top cover 3 to close the top of the recessed support frame 2. This prevents the sensors from being damaged by accidental collisions during equipment installation, and ensures that the sensors do not come into direct contact with the switch cabinet 1. The temperature conducted on the switch cabinet 1 will not directly affect the sensors.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A low-voltage electric load prediction switch cabinet, comprising a switch cabinet body (1) internally provided with an electric load prediction control system, and a cabinet door (101) hinged to the outside of the switch cabinet body (1), characterized in that, The switch cabinet body (1) is fixedly connected with an inner recess type support frame (2), both sides of the inner recess type support frame (2) are provided with a wiring slot (201), and the top of the inner recess type support frame (2) is provided with a detachable closed top cover (3). The inner recess type support frame (2) is provided with a fixed plate (4) inside, the fixed plate (4) is used for bearing electrical elements, a plurality of fixed holes (401) are uniformly arranged on the fixed plate (4), and the two sides of the inner wall of the inner recess type support frame (2) and above the fixed plate (4) are fixedly connected with a limiting carrier plate (5), the top of the limiting carrier plate (5) is fixedly connected with a positioning rubber strip (6), the top of the positioning rubber strip (6) is provided with a linear array of wire clamping grooves (601), and the wire clamping grooves (601) are used for assisting in positioning the wires inserted into the inner recess type support frame (2).

2. The low-voltage power load prediction switchgear according to claim 1, characterized in that, The top of the limiting carrier plate (5) is provided with a fixed bolt (7), the bottom of the fixed bolt (7) penetrates through the fixed plate (4) and is in threaded connection with the inner recess type support frame (2), and the fixed bolt (7) is used for fixing the fixed plate (4) to the inner recess type support frame (2).

3. The low-voltage power load prediction switchgear according to claim 2, characterized in that, The bottom of the inner recess type support frame (2) is provided with a limiting sliding groove (8), the bottom of the fixed plate (4) is fixedly connected with a limiting protrusion (9), and the limiting sliding groove (8) and the limiting protrusion (9) are in sliding connection.

4. The low-voltage power load prediction switchgear according to claim 1, characterized in that, The bottom of the closed top cover (3) is fixedly connected with two inner limiting plates (10), the two inner limiting plates (10) are respectively attached to the two sides of the inner wall of the inner recess type support frame (2), and the inner recess type support frame (2) and the switch cabinet body (1) are fixedly connected with a supporting block (11).

5. The low voltage load predicting switchgear according to claim 1, characterized in that, The top of the inner recess type support frame (2) is fixedly connected with a positioning block (12), one side of the positioning block (12) is provided with a movable slot (13), a tension spring (14) is fixedly connected in the positioning block (12), a pressing block (15) is fixedly connected to the top of the tension spring (14) and located in the movable slot (13), and the bottom of the pressing block (15) is inclined.

6. The low-voltage power load prediction switchgear according to claim 5, characterized in that, The movable slot (13) is fixedly connected with a guide shaft (16), and the guide shaft (16) and the pressing block (15) are in sliding connection.

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