Novel power distribution drawer cabinet

Abstract

A novel power distribution drawer cabinet comprises a drawer type power distribution cabinet body, a storage battery, a positioning mechanism and a control circuit. The positioning mechanism comprises a touch circuit module, an electric pull rod and an electric push rod, a supporting plate is fixedly installed at the lower side end of a sliding rail of the power distribution drawer, a pushing plate is fixedly installed outside the lower end of the power distribution drawer, and a positioning hole is formed in the rear lower end of the power distribution drawer; the lower end of the electric pull rod is fixedly installed on the upper portion of the rear-end supporting plate. And the storage battery, the touch circuit module of the positioning mechanism and the control circuit are arranged in an element box in the power distribution drawer and are electrically connected. According to the utility model, the power distribution drawer can be effectively positioned through the electric pull rod after being closed, so that the probability of poor contact of input and output plug connectors is prevented; when a fire disaster happens to control electrical equipment in the power distribution drawer, the power distribution drawer can be pushed forwards by the electric push rod to move forwards for a certain distance at the first time, and then input and output power supplies of the power distribution drawer are closed.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet equipment technology, and in particular to a novel power distribution drawer cabinet. Background Technology

[0002] Drawer-type distribution cabinets are a very common type of electrical equipment and serve as the final stage of a power distribution system. They are typically used in situations where loads are relatively dispersed and there are few circuits. During operation, they distribute electrical energy from a circuit of the upstream distribution equipment to the nearest load and provide protection and control functions for the load.

[0003] With technological advancements, the functions of drawer-type power distribution cabinets have become increasingly sophisticated. For example, the authorized patent in my country, patent number "2021205481357," entitled "A High and Low Voltage Power Distribution Drawer Cabinet," states that "this application avoids unplanned actions by adding a switch." As can be seen above, while the aforementioned patent reduces the problem of unplanned actions by the drawer cabinet's switch to some extent, it, like other power distribution drawer cabinets in the field, still suffers from the following problems due to structural limitations. Firstly, it lacks the positioning function of the power distribution drawer. In practical applications, due to wear and tear on the slide rails and sliding blocks, or factors such as a slight forward tilt in the installation position of the power distribution drawer cabinet, there is a possibility that the power distribution drawer may slide forward, leading to poor contact or even separation between the power input and output connectors at its rear end and the corresponding power input and output connectors at the rear of the power distribution cabinet body. This can adversely affect the safe power supply to the electrical equipment. (After the power distribution drawer is closed, the outer side of its rear power input and output connectors and the corresponding power output and input connectors at the rear of the power distribution cabinet body may become disconnected.) The components are connected at the front end. The front end of the power output plug at the corresponding position on the rear side of the distribution cabinet body is connected to the rear part of the power input plug at the rear end of the distribution drawer. The front part of the power input plug at the rear end of the distribution drawer supplies power to the control electrical equipment inside the distribution drawer. The power output terminal of the control electrical equipment is connected to the front part of the power output plug at the rear end of the distribution drawer. The rear part of the power output plug at the rear end of the distribution drawer is connected to the front end of the corresponding position on the rear side of the distribution cabinet body. The rear end of the corresponding position on the rear side of the distribution cabinet body is connected to the power input terminal of the electrical load. Secondly, in the event of a fire in the control electrical equipment inside the distribution drawer due to various reasons, the input and output power of the distribution drawer cannot be automatically shut off. This poses a possibility of power supply abnormalities causing malfunctions in the distribution cabinet itself and the electrical load equipment. In summary, the existing drawer-type distribution cabinet still has considerable room for technical improvement. It is very necessary to provide a distribution drawer cabinet that can realize the positioning of the distribution drawer and can promptly shut off the input and output power in case of abnormal temperature. Utility Model Content

[0004] In order to overcome the disadvantages of the existing drawer - type power distribution cabinet due to its structural limitations as described in the background, the present utility model provides a new - type power distribution drawer cabinet based on the drawer - type power distribution cabinet body. During application, it can effectively position the power distribution drawer after it is closed, preventing the power input and output plugs of the power distribution drawer from having poor contact or even separation with the corresponding power input and output connectors at the rear side inside the power distribution cabinet body. Moreover, it can monitor the situation inside each power distribution drawer in real - time. When a fire or other problems occur to the electrical equipment inside the power distribution drawer, it can immediately cut off the input and output power of the power distribution drawer, reducing the adverse impact on the safe power supply of the electrical equipment.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] A new - type power distribution drawer cabinet includes a drawer - type power distribution cabinet body and a storage battery. It is characterized in that it also has a positioning mechanism and a control circuit; there are multiple sets of the positioning mechanism and the control circuit respectively. Each of the multiple power distribution drawers of the drawer - type power distribution cabinet body is equipped with a set of storage battery, positioning mechanism and control circuit. The positioning mechanism includes a touch - circuit module, an electric pull rod and an electric push rod. A support plate is fixedly installed at the lower - side end of the slide rail of each power distribution drawer, a push plate is fixedly installed outside the lower end of each power distribution drawer, and there is a positioning hole at the lower - rear end of each power distribution drawer. The rear end of the electric push rod is fixedly installed on the upper part of the front - end support plate, and the lower end of the electric pull rod is fixedly installed on the upper part of the rear - end support plate; each set of storage battery, the touch - circuit module of the positioning mechanism and the control circuit are installed in the component box inside the power distribution drawer. The two poles of the storage battery are electrically connected to the power input terminals of the touch - circuit module and the control circuit. The power output terminal of the touch - circuit module, the power output terminal of the first path of the control circuit and the power input terminal of the electric pull rod are electrically connected. The power output terminal of the second path of the control circuit and the power input terminal of the electric push rod are electrically connected.

[0007] Further, the front - side end of the electric push rod and the rear - end of the push plate are on the same horizontal plane and in a straight line from front to back.

[0008] Further, after the power distribution drawer is completely closed, the movable column of the electric pull rod and the positioning hole are in a vertical plane from top to bottom. There is a distance between the upper end of the movable column and the lower end of the positioning hole, and the inner diameter of the positioning hole is larger than the outer diameter of the movable column.

[0009] Further, the touch piece supporting the touch - circuit module is installed outside the front - side end of the handle of the power distribution drawer.

[0010] Furthermore, the control circuit includes a smoke detection module, a diode, a power switch, and a time control module that are electrically connected. The power input terminal of the smoke detection module is connected to the power input terminal of the power switch. The positive power output terminal of the smoke detection module is connected to the positive terminal of the diode and the positive power input terminal of the time control module. The negative power input terminal of the time control module is connected to the negative power input terminal of the smoke detection module.

[0011] The beneficial effects of this utility model are as follows: Based on a drawer-type distribution cabinet body, this utility model can effectively position the distribution drawer after it is closed via an electric pull rod, preventing the distribution drawer from sliding along the slide rail via a sliding block, thus avoiding the possibility of poor contact or even separation of the power input and output plugs and corresponding power input and output connectors at the rear of the distribution cabinet body. Furthermore, it can monitor the situation inside each distribution drawer in real time via a control circuit. In the event of a fire or other incident involving the controlled electrical equipment inside the distribution drawer, the electric push rod can immediately push the distribution drawer forward a certain distance, thereby shutting off the input and output power of the distribution drawer and reducing the adverse impact on the safe power supply of electrical equipment. Based on the above, this utility model has good application prospects. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a partial structural schematic diagram of the present invention.

[0015] Figure 3 This is the circuit diagram of this utility model. Detailed Implementation

[0016] Figure 1 , 2As shown in Figures 1 and 3, a novel power distribution drawer cabinet includes a drawer-type power distribution cabinet body 1, a power module A1, a storage battery G1, and also has a positioning mechanism and a control circuit 2. Multiple sets of the positioning mechanism and control circuit 2 are provided. Each of the multiple power distribution drawers 101 of the drawer-type power distribution cabinet body is equipped with a set of power module A1, storage battery G1, positioning mechanism, and control circuit 2. The positioning mechanism includes a touch circuit module A2, an electric pull rod DC, and an electric push rod M. Two support plates 10 are welded to the lower outer ends of the two drawer slide rails of each power distribution drawer at a distance from each other. 2. A push plate 103 is welded to the lower center of each power distribution drawer. A concave semi-circular positioning hole 104 (closed at the top) is located at the lower center of each power distribution drawer. The cylindrical body of the electric push rod M is longitudinally distributed and bolted to the upper center of a front support plate 102. The lower end of the housing of the electric pull rod DC is bolted to the upper center of a rear support plate 102. Each set of power module A1, battery G1, touch circuit module A2 of positioning mechanism and control circuit 2 are installed in component box 3. Component box 3 is installed in the front end of power distribution drawer 101.

[0017] Figure 1 , 2 As shown in Figure 3, the front end of the push column of the electric push rod M and the rear end of the middle part of the push plate 103 are on the same horizontal plane and are aligned in a straight line. After the power distribution drawer 101 is fully closed, the movable column of the electric pull rod DC and the positioning hole 104 are on the same vertical plane from top to bottom. The upper end of the movable column and the lower end of the positioning hole 104 are spaced apart by a distance of 3 mm, and the inner diameter of the positioning hole 104 is larger than the outer diameter of the movable column. The touch piece W, which is matched with the touch circuit module A2, is insulated and installed on the outside of the front end of the power distribution drawer handle 105 (the front end of the handle 105 has an insulating sleeve, and the touch piece W is glued to the front outer end of the handle 105), and the front end of the touch piece W has the same curvature as the handle 105. The control circuit includes a smoke detection module A4 (its detection surface is located outside the opening at the top of the component box) and a diode VD, a power switch S1, and a time control module A3, all connected via circuit board wiring. The power input terminals 1 and 2 of the smoke detection module A4 are connected to the power input terminals 1 and 2 of the power switch S1. The positive power output terminal 3 of the smoke detection module A4 is connected to the positive terminal of the diode VD and the positive power input terminal 1 of the time control module A3. The negative power input terminal 2 of the time control module A3 is connected to the negative power input terminal 2 of the smoke detection module A4. A wire with sufficient length, connected to the electric pull rod DC and the electric push rod M, enters the power distribution drawer 101 through the opening at the bottom of the drawer (the opening is sealed with sealant). A wire connected to the touch piece W enters the power distribution drawer through the opening at the front of the drawer (the opening is sealed with sealant). The handle of the power switch S1 is located at the front outer end of the power distribution drawer 101.

[0018] Figure 1 ,2 As shown in Figure 3, the power input terminals 1 and 2 of power module A1 are connected to the two poles of AC 220V power supply via wires. The power output terminals 3 and 4 of power module A1 are connected to the two poles of battery G1, the power input terminals 1 and 2 of touch circuit module A2, the power input terminals of control circuit and time control module A3 via wires. The power output terminals 3 and 2 of touch circuit module A2, the negative terminal of diode VD of the first power output terminal of control circuit and the negative power input terminal of time control module A3 are connected to the power input terminal of electric lever DC via wires. The power output terminals 3 and 4 of the second power output terminal of control circuit and power switch S1 are connected to the positive and negative and negative and positive and negative power input terminals of electric push rod M via wires. Figure 3 In the circuit diagram, diode VD is model 1N4007 (unidirectional conduction); power module A1 is a finished product of AC 220V to DC 12V switching power supply module; battery G1 is a model 12V / 5Ah lithium battery; electric actuator M is a finished product of 10W small reciprocating electric telescopic actuator; time control module A3 is a finished product of model KG316T time control switch module, which has two power input terminals and two power output terminals, and also has seven setting buttons. By operating the seven setting buttons, the power output terminal output time can be set; touch circuit module A2 is model IKSL The ED-009-CM touch sensor switch module has two power input terminals and two power output terminals. Power is output when a finger touches the matching touch pad W, and not when the finger touches it. The smoke detection module A4 is a smoke alarm module, model JTY-GD-CA2001L, with two power input terminals and one power output terminal. Power is output when smoke from a fire is detected, and not when smoke is detected. The DC electric pull rod is model LY-078, a DC electromagnetic push-pull type pull rod. When energized, the movable column moves downwards; when de-energized, it moves upwards. The above... Figure 3 In this application, electrical components are mature existing industrial products, and their working principles will not be described in detail.

[0019] Figure 1 , 2As shown in Figure 3, the main body 1 of this novel drawer-type distribution cabinet has all the functions of a conventional drawer-type distribution cabinet. It is used in situations where the load is relatively dispersed and there are few circuits. During operation, it distributes the electrical energy of a certain circuit of the upstream power distribution equipment to the nearest load and provides protection and control functions for the load (the above are existing mature technologies, and will not be described in detail here). The following description uses one of the distribution drawers of the drawer-type distribution cabinet body and its power module, battery, positioning mechanism, and control circuit as a representative example to illustrate their working principles. After the 220V AC power enters the power input terminal of the power module A1, its pins 3 and 4 output a stable 12V DC power supply, which enters the power input terminals of the battery G1, positioning mechanism, and control circuit. The battery G1 (which is normally float-charged to ensure that other mechanisms and circuits can still operate normally after the distribution drawer is powered off), the positioning mechanism, and the control circuit are powered on and operate. Each time the staff needs to open or close the power distribution drawer 101, after holding the handle and the touch plate W, the power output of pin 3 of the touch circuit module A2 is sent to the power input terminal of the electric pull rod DC. When the electric pull rod DC is energized, its internal electromagnetic coil generates attraction, and the movable column moves downward. The upper end of the movable column separates from the lower end of the positioning hole 104 at the lower end of the power distribution drawer. In this way, the staff can easily pull out or push in the power distribution drawer 101 via the sliding block and slide rail. When the power distribution drawer is closed, the operator releases their hand. As the hand leaves the touch pad, pin 3 of the touch circuit module A2 stops outputting power to the power input terminal of the electric pull rod DC. The electric pull rod DC is de-energized, and its internal electromagnetic coil no longer generates attraction. Under the elastic force, the movable column moves upward, and the upper end of the movable column enters the lower end of the positioning hole 104 of the power distribution drawer. In this way, because the movable column enters the positioning hole, the power distribution drawer will not move forward and outward along the slide rail via the sliding block (in actual situations, before the operator's left hand leaves the handle, the right hand can push the power distribution drawer body backward to prevent it from moving forward). This prevents the power distribution drawer 101 from sliding along the slide rail via the sliding block, thus preventing poor contact or even separation of the power input and output plugs and the corresponding power input and output plugs at the rear of the power distribution cabinet body.

[0020] Figure 1 , 2As shown in Figure 3, when there is no fault in the control electrical equipment inside the power distribution drawer, pin 3 of the smoke detection module A4 will not output power, and the electric pull rod and electric push rod will not be energized and will not work. When a control electrical equipment malfunctions or smoke is generated inside the power distribution drawer, the power output from pin 3 of the smoke detection module A4 is unidirectionally conducted through diode VD to the power input terminal of the electric pull rod DC (when the electric pull rod DC is energized, the upper end of the movable column and the lower end of the positioning hole 104 at the lower end of the power distribution drawer separate). It also enters the power input terminal of the time control module A3. When the time control module A3 is energized, its pins 3 and 4 will output power for a certain period of time (e.g., 5 seconds, the actual time is adjustable) to the positive and negative power input terminals of the electric push rod M. After the electric push rod M is energized, its push column pushes the push plate 103 to move forward. The push plate 103 drives the power distribution drawer to move forward (about 5 cm). The power input and output plugs of the power distribution drawer and the corresponding power input and output plugs at the rear of the power distribution cabinet body are separated, thereby shutting off the input and output power of the power distribution drawer. This reduces the probability of the power distribution drawer continuing to supply power to the electrical equipment during a fault, which could lead to damage to the electrical equipment and the control electrical equipment inside the power distribution drawer. After the operator turns on the power switch S1 (pins 1 and 2 are connected to pins 3 and 4 respectively), the positive and negative power input terminals of the electric push rod M are energized. Once energized, the push rod M moves backward. After approximately 5 seconds, the operator turns off the power switch, and the distribution drawer can then be closed normally. In this new design, an alarm can also be installed between pins 3 and 2 of the smoke detection module A4. This allows the smoke detection module A4 to sound an alarm when it detects a fault in the control equipment or smoke generation inside the distribution drawer, prompting the operator to perform timely repairs.

[0021] The above description illustrates 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of power distribution drawer cabinet comprising a drawer type power distribution cabinet body, a battery, characterized in that, The drawer-type power distribution cabinet body is provided with a plurality of power distribution drawers, and each of the power distribution drawers is provided with a set of battery, positioning mechanism and control circuit.

2. A new power distribution drawer cabinet according to claim 1, characterized in that, The front side end of the electric push rod and the rear end of the push plate are in the same horizontal plane and are in a straight line.

3. A new power distribution drawer cabinet according to claim 1, characterized in that, After the power distribution drawer is completely closed, the movable column of the electric pull rod and the positioning hole are in a vertical plane from top to bottom, the upper end of the movable column and the lower end of the positioning hole are spaced apart, and the inner diameter of the positioning hole is greater than the outer diameter of the movable column.

4. A new power distribution drawer cabinet according to claim 1, characterized in that, The touch sheet matched with the touch circuit module is installed on the front side end of the handle of the power distribution drawer.

5. A new power distribution drawer cabinet according to claim 1, characterized in that, The control circuit comprises a smoke detection module and a diode, a power switch and a time control module which are electrically connected. The power input end of the smoke detection module is connected with the power input end of the power switch. The positive power output end of the smoke detection module is connected with the positive electrode of the diode and the positive power input end of the time control module. The negative power input end of the time control module is connected with the negative power input end of the smoke detection module.

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