Generator control cabinet with short circuit alarm

Abstract

The utility model relates to control cabinet technical field, concretely relates to a generator control cabinet with short circuit alarm, through the alarm device including battery, motor, extruding wheel, knocking hammer and sounding pipe, the inner wall fixed connection of battery and cabinet, the front surface fixed connection of battery has support no.

Description

Technical Field

[0001] This utility model relates to the field of control cabinet technology, and in particular to a generator control cabinet with short-circuit alarm. Background Technology

[0002] A three-part structure is used, as shown in the following example:

[0003] The generator control cabinet is a core device used to control, monitor, and protect the operation of a generator. It mainly consists of a control module (such as a PLC or microprocessor), protection devices (overload, short circuit, undervoltage protection circuits, etc.), display instruments (voltage, current, and frequency displays), circuit breakers, contactors, and communication interfaces. It can realize generator start / stop control, operating status monitoring, fault diagnosis, and power distribution functions. This device is widely used in industrial production, data centers, hospitals, mines, ships, and other scenarios, and is compatible with various types of generators such as diesel, gasoline, and gas generators. It is a key device to ensure the safe and reliable operation of generator sets and improve power supply efficiency. In actual use, although the generator control cabinet can provide short circuit protection through short circuit protectors, it cannot specifically alarm at the moment of a short circuit.

[0004] An existing electrical control cabinet with a short-circuit alarm device, for example, with announcement number CN211240423U, uses the principle of electromagnets being energized and magnetized to restrict the position of structures such as battery boxes. When the control cabinet is short-circuited and power is cut off, the electromagnets lose their magnetism and stop restricting the battery boxes, allowing the battery boxes to be installed into the groove by springs, thus supplying power to the motor. This causes the motor to drive the impact ring to work and trigger an alarm, solving the problem of the control cabinet not being able to provide targeted alarms when short-circuited.

[0005] Although the aforementioned electrical control cabinet, through its electromagnet and other structural designs, enables it to trigger an alarm instantly during a short circuit, the power supply for its alarm mechanism relies on the kinetic energy of a spring to pull the connecting block and other structures upwards, allowing the battery box to be installed into the recess. In actual operation, the weight of the battery box, connecting block, and other structures reduces the kinetic energy generated by the spring. Furthermore, due to the lack of a damper, the spring repeatedly bounces when pulling the battery box back to its original position, preventing the battery box from being effectively installed into the recess and resulting in unstable power supply. Simultaneously, the impact force generated during reset can damage the battery box and cause it to collide with the connecting structure within the recess, leading to contact damage and preventing the structure from supplying power properly, thus rendering the alarm mechanism ineffective. Utility Model Content

[0006] The purpose of this utility model is to provide a generator control cabinet with a short-circuit alarm, which solves the problem that due to the lack of a damper, the spring will repeatedly bounce when pulling the battery box to reset, which will prevent the battery box that provides power from being effectively installed into the groove, making it difficult for the battery box to provide stable power supply and causing the alarm structure to fail to alarm normally.

[0007] To achieve the above objectives, this utility model provides a generator control cabinet with a short-circuit alarm, including a cabinet body, a cabinet door, a control switch, and a short-circuit protector. The cabinet door is installed on one side of the cabinet body, and the control switch and the short-circuit protector are installed on the inner wall of the cabinet body. Both the control switch and the short-circuit protector are connected to a 220V mains power supply and are controlled by conventional control devices such as a PLC.

[0008] It also includes alarm devices;

[0009] The alarm device includes a battery, a motor, a pressing wheel, a striking hammer, and a sound tube. The battery is fixedly connected to the inner wall of the cabinet and can also be electrically connected to the circuit inside the cabinet, so that the circuit inside the cabinet can charge the battery when it is depleted during normal operation. A bracket is fixedly connected to the front surface of the battery, and a spring pin is fixedly connected to the inner wall of the bracket. A bracket is fixedly connected to the right side of the handle of the short circuit protector, and a conductive contact adapted to the spring pin is fixedly connected to the inner wall of the bracket. The conductive contact is made of conductive materials such as copper and its surface can be coated with a conventional wear-resistant coating to ensure the service life of the conductive contact.

[0010] A motor is fixedly connected to the upper inner wall of the cabinet. A pressing wheel is fixedly connected to the drive shaft of the motor. A rotating shaft is fixedly connected to the upper surface of the cabinet. A striking hammer is rotatably connected to the surface of the rotating shaft. A fixing block is fixedly connected to the upper surface of the cabinet. A return spring is fixedly connected to the rear side of the fixing block. The return spring is fixedly connected to the surface of the striking hammer. A U-shaped frame is fixedly connected to the upper surface of the cabinet. A sound-emitting tube is fixedly connected to the inner wall of the U-shaped frame. When the striking hammer strikes, the sound-emitting tube emits a high-frequency sound through the resonance of the tube cavity, thereby producing an alarm effect to remind the staff.

[0011] The spring pin is electrically connected to the battery via a wire. The spring pin consists of a retractable copper protrusion, a spring for resetting, and a housing. The protrusion can be connected to the wire via contacts on the housing to achieve the power supply function. The conductive contacts are electrically connected to the motor via wires, and the battery is electrically connected to the motor via wires.

[0012] The cabinet has a circular hole on its upper surface, and the motor's drive shaft is located inside the circular hole, penetrating the upper surface of the cabinet.

[0013] The upper surface of the cabinet is provided with a protective device, which includes a limiting frame. The limiting frame is fixedly connected to the upper surface of the cabinet. A groove is formed on the upper surface of the limiting frame. A permanent magnet is fixedly connected to the inner wall of the groove. A protective cover is magnetically attracted to the upper surface of the permanent magnet. An installation cavity is formed on both the left and right sides of the protective cover. A filter screen is fixedly connected to the inner wall of the installation cavity of the protective cover.

[0014] The protective cover abuts against the upper surface of the limiting frame, the lower surface of the protective cover is fixedly connected with a pin, the upper surface of the limiting frame has an insertion hole, and the pin is inserted into the inner wall of the insertion hole.

[0015] This utility model discloses a generator control cabinet with a short-circuit alarm. When using the control cabinet to control the generator, the generator is connected to the control switch inside the control cabinet in a conventional connection manner, and the control switch is connected to the switch on the cabinet door. After the connection is completed, the cabinet door is closed, and the user can then control the generator through the switch on the cabinet door. When a short circuit occurs in the circuit, the short-circuit protector located inside the cabinet door will trip to cut off the circuit, thereby protecting the generator.

[0016] When the short-circuit protector trips, the handle of the short-circuit protector drives the second bracket, which in turn drives the conductive contact to rotate around the handle's axis. As the conductive contact rotates, it approaches the spring pin. When the conductive contact contacts the spring pin, it presses against the spring pin, causing the protrusion of the spring pin to slide into the housing. When the handle of the short-circuit protector is rotated to its maximum angle, the conductive contact stops moving. At the same time, the protrusion of the spring pin presses against the surface of the conductive contact under the action of the spring, and together with the conductive contact, they form a circuit, thereby enabling the battery to supply power to the motor.

[0017] When the motor is powered on, it drives the extrusion wheel via the drive shaft. The extrusion wheel rotates under the motor's drive, pushing the hammer in the process. The hammer rotates under the guidance of the shaft, compressing the return spring during rotation. The return spring is deformed by the compression. When the extrusion wheel disengages from the hammer and loses its force on the hammer, the hammer loses its pressure on the return spring, causing the spring to rebound and push the hammer back to its original position. The hammer is then pushed to rotate along the shaft, striking the sound tube in the process. The extrusion wheel rotates cyclically under the motor's drive, causing the hammer to repeatedly strike the sound tube. The sound tube continuously produces sound under the hammer's strikes, alerting staff to a short circuit in the control cabinet. By setting up an alarm device that is linked to the short-circuit protector, the alarm device can quickly and stably connect to the power supply after the short-circuit protector trips. This ensures that the alarm device can effectively and continuously alert staff to the short-circuit control cabinet area when a short-circuit fault occurs, allowing staff to quickly identify and repair the short-circuit area. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 This is a structural diagram of the normal operating state of an embodiment of the present invention.

[0021] Figure 3 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the structure at point A in the middle.

[0022] Figure 4 This is a structural schematic diagram of the alarm state according to an embodiment of the present invention.

[0023] Figure 5 This is an embodiment of the present utility model. Figure 4 A schematic diagram of the structure at point B.

[0024] Figure 6 This is a schematic diagram of the alarm device according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the protective device according to an embodiment of the present invention.

[0026] 1. Cabinet body; 2. Cabinet door; 3. Control switch; 4. Short circuit protector; 5. Alarm device; 51. Storage battery; 52. Bracket 1; 53. Spring pin; 54. Bracket 2; 55. Conductive contact; 56. Motor; 57. Pressing roller; 58. Rotating shaft; 59. Striking hammer; 510. Fixing block; 511. Return spring; 512. U-shaped frame; 513. Sound tube; 6. Protective device; 61. Limit frame; 62. Permanent magnet; 63. Protective cover; 64. Pin; 65. Filter screen. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0028] Please see Figures 1-7A generator control cabinet with short-circuit alarm includes a cabinet body, a cabinet door, a control switch, and a short-circuit protector. The cabinet door is installed on one side of the cabinet body, and the control switch and the short-circuit protector are installed on the inner wall of the cabinet body. Both the control switch and the short-circuit protector are connected to 220V mains power and are controlled by conventional control devices such as PLC.

[0029] It also includes alarm devices;

[0030] The alarm device includes a battery, a motor, a pressing wheel, a striking hammer, and a sound tube. The battery is fixedly connected to the inner wall of the cabinet and can also be electrically connected to the circuit inside the cabinet, so that the circuit inside the cabinet can charge the battery when it is depleted during normal operation. A bracket is fixedly connected to the front surface of the battery, and a spring pin is fixedly connected to the inner wall of the bracket. A bracket is fixedly connected to the right side of the handle of the short circuit protector, and a conductive contact adapted to the spring pin is fixedly connected to the inner wall of the bracket. The conductive contact is made of conductive materials such as copper and its surface can be coated with a conventional wear-resistant coating to ensure the service life of the conductive contact.

[0031] A motor is fixedly connected to the upper inner wall of the cabinet. A pressing wheel is fixedly connected to the drive shaft of the motor. A rotating shaft is fixedly connected to the upper surface of the cabinet. A striking hammer is rotatably connected to the surface of the rotating shaft. A fixing block is fixedly connected to the upper surface of the cabinet. A return spring is fixedly connected to the rear side of the fixing block. The return spring is fixedly connected to the surface of the striking hammer. A U-shaped frame is fixedly connected to the upper surface of the cabinet. A sound-emitting tube is fixedly connected to the inner wall of the U-shaped frame. When the striking hammer strikes, the sound-emitting tube emits a high-frequency sound through the resonance of the tube cavity, thereby producing an alarm effect to remind the staff.

[0032] The spring pin is electrically connected to the battery via a wire. The spring pin consists of a retractable copper protrusion, a spring for resetting, and a housing. The protrusion can be connected to the wire via contacts on the housing to achieve the power supply function. The conductive contacts are electrically connected to the motor via wires, and the battery is electrically connected to the motor via wires.

[0033] The cabinet has a circular hole on its upper surface, and the motor's drive shaft is located inside the circular hole, penetrating the upper surface of the cabinet.

[0034] The upper surface of the cabinet is provided with a protective device, which includes a limiting frame. The limiting frame is fixedly connected to the upper surface of the cabinet. A groove is formed on the upper surface of the limiting frame. A permanent magnet is fixedly connected to the inner wall of the groove. A protective cover is magnetically attracted to the upper surface of the permanent magnet. An installation cavity is formed on both the left and right sides of the protective cover. A filter screen is fixedly connected to the inner wall of the installation cavity of the protective cover.

[0035] The protective cover abuts against the upper surface of the limiting frame, the lower surface of the protective cover is fixedly connected with a pin, the upper surface of the limiting frame has an insertion hole, and the pin is inserted into the inner wall of the insertion hole.

[0036] This utility model discloses a generator control cabinet with a short-circuit alarm. When using the control cabinet to control the generator, the generator is connected to the control switch inside the control cabinet in a conventional connection manner, and the control switch is connected to the switch on the cabinet door. After the connection is completed, the cabinet door is closed, and the user can then control the generator through the switch on the cabinet door. When a short circuit occurs in the circuit, the short-circuit protector located inside the cabinet door will trip to cut off the circuit, thereby protecting the generator.

[0037] When the short-circuit protector trips, the handle of the short-circuit protector drives the second bracket, which in turn drives the conductive contact to rotate around the handle's axis. As the conductive contact rotates, it approaches the spring pin. When the conductive contact contacts the spring pin, it presses against the spring pin, causing the protrusion of the spring pin to slide into the housing. When the handle of the short-circuit protector is rotated to its maximum angle, the conductive contact stops moving. At the same time, the protrusion of the spring pin presses against the surface of the conductive contact under the action of the spring, and together with the conductive contact, they form a circuit, thereby enabling the battery to supply power to the motor.

[0038] When the motor is powered on, it drives the extrusion wheel via the drive shaft. The extrusion wheel rotates under the drive of the motor, pushing the hammer in the process. The hammer rotates under the guidance of the shaft, squeezing the return spring in the process. The return spring is deformed by the compression. When the extrusion wheel disengages from the hammer and loses the force applied to the hammer, the hammer loses the pressure applied to the return spring. The return spring rebounds and pushes the hammer back to its original position. The hammer is pushed to rotate along the shaft axis and strikes the sound tube in the process. The extrusion wheel rotates cyclically under the drive of the motor, so that the hammer strikes the sound tube repeatedly. The sound tube continuously produces sound under the hammer's strike and alerts the staff that the control cabinet is short-circuited.

[0039] By setting up an alarm device that is linked to the short-circuit protector, the alarm device can quickly and stably connect to the power supply after the short-circuit protector trips. This ensures that the alarm device can effectively and continuously sound an alarm when a short-circuit fault occurs in the control cabinet, thereby alerting staff to the area where the short-circuit control cabinet is located, so that staff can quickly identify and repair the short-circuit area.

[0040] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A generator control cabinet with short-circuit alarm, comprising a cabinet body, a cabinet door, a control switch, and a short-circuit protector, characterized in that, The cabinet door is installed on one side of the cabinet body, and a control switch and a short-circuit protector are installed on the inner wall of the cabinet body. It also includes alarm devices; The alarm device includes a battery, a motor, a pressing wheel, a hammer, and a sound tube. The battery is fixedly connected to the inner wall of the cabinet. A bracket is fixedly connected to the front surface of the battery. A spring pin is fixedly connected to the inner wall of the bracket. A bracket is fixedly connected to the right side of the handle of the short circuit protector. A conductive contact adapted to the spring pin is fixedly connected to the inner wall of the bracket. A motor is fixedly connected to the upper inner wall of the cabinet. A pressing wheel is fixedly connected to the drive shaft of the motor. A rotating shaft is fixedly connected to the upper surface of the cabinet. A hammer is rotatably connected to the surface of the rotating shaft. A fixing block is fixedly connected to the upper surface of the cabinet. A return spring is fixedly connected to the rear side of the fixing block. The return spring is fixedly connected to the surface of the hammer. A U-shaped frame is fixedly connected to the upper surface of the cabinet. A sound-emitting tube is fixedly connected to the inner wall of the U-shaped frame.

2. A generator control cabinet with short-circuit alarm as described in claim 1, characterized in that, The spring pin is electrically connected to the battery via a wire, the conductive contact is electrically connected to the motor via a wire, and the battery is electrically connected to the motor via a wire.

3. A generator control cabinet with short-circuit alarm as described in claim 1, characterized in that, A circular hole is provided on the upper surface of the cabinet, and the drive shaft of the motor is located inside the circular hole, with the drive shaft of the motor penetrating through the upper surface of the cabinet.

4. A generator control cabinet with short-circuit alarm as described in claim 1, characterized in that, The upper surface of the cabinet is provided with a protective device, which includes a limiting frame. The limiting frame is fixedly connected to the upper surface of the cabinet. A groove is opened on the upper surface of the limiting frame. A permanent magnet is fixedly connected to the inner wall of the groove. A protective cover is magnetically attracted to the upper surface of the permanent magnet. An installation cavity is opened on both the left and right sides of the protective cover. A filter screen is fixedly connected to the inner wall of the installation cavity of the protective cover.

5. A generator control cabinet with short-circuit alarm as described in claim 4, characterized in that, The protective cover abuts against the upper surface of the limiting frame, and a pin is fixedly connected to the lower surface of the protective cover. An insertion hole is opened on the upper surface of the limiting frame, and the pin is inserted into the inner wall of the insertion hole.

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