A compact circuit breaker cabinet for wall-mounted vacuum circuit breakers

Abstract

The application discloses a compact circuit breaker cabinet matched with a wall-mounted vacuum circuit breaker and relates to the technical field of circuit breaker cabinets.The compact circuit breaker cabinet comprises a cabinet body, a circuit breaker structure and a connecting mechanism, and a touch screen is arranged on the cabinet body.The circuit breaker structure comprises a protection seat, an insulating shell and a control mechanism.The control mechanism comprises a communication block, a communication seat, a current sensor, a controller and a linear motor.A movable contact is fixed on the communication block, and a static contact is arranged in the communication seat.The linear motor is used for driving the communication block to move so that the movable contact and the static contact are in contact or separated.The current sensor is used for detecting the current between the communication block and the communication seat.The current sensor, the controller and the touch screen are sequentially signal connected.The connecting mechanism comprises a first wiring post and a second wiring post which are fixed on the cabinet body respectively.For a small current and a circuit fault, the current sensor can accurately perceive.When the current is abnormal, the controller can control the linear motor to work so that the movable contact and the static contact are quickly separated, and circuit protection is realized.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker cabinet technology, and in particular to a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker. Background Technology

[0002] Low-voltage circuit breakers, also known as automatic air switches, are mainly used in AC / DC low-voltage power grids. They can be manually or electrically opened and closed circuits, and can provide overload, short circuit and undervoltage protection for circuits or electrical equipment. They can also be used for infrequent starting of motors, and are an important control and protection electrical appliance.

[0003] Existing compact circuit breaker cabinets equipped with wall-mounted vacuum circuit breakers achieve circuit breaking control through mechanical structures. While current circuit breakers are relatively fast for large currents, they suffer from slow response to small currents and circuit faults. Furthermore, current circuit breakers cannot be efficiently and stably adjusted, making them inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker to solve the problems existing in the prior art and achieve efficient and stable control of the vacuum circuit breaker.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker, comprising:

[0007] The cabinet is equipped with a touch screen.

[0008] The circuit breaker structure includes a protective base, an insulating housing, and a control mechanism. The protective base and the insulating housing are both housed within a cabinet. The control mechanism is located within the protective base. The insulating housing is fixedly connected to the side of the protective base away from the control mechanism. The control mechanism includes a connecting block, a connecting seat, a current sensor, a controller, and a linear motor. A moving contact is fixedly mounted on the connecting block, and a stationary contact is located within the connecting seat. The linear motor drives the connecting block to move so that the moving contact contacts or separates from the stationary contact. The controller controls the operation of the linear motor. The current sensor detects the current between the connecting block and the connecting seat. The current sensor, the controller, and the touchscreen are sequentially connected via signals.

[0009] The connection mechanism includes a first terminal and a second terminal fixedly disposed outside the cabinet. The first terminal is electrically connected to the connecting block, and the second terminal is electrically connected to the connecting seat. Both the first terminal and the second terminal are used to connect external cables.

[0010] Preferably, a conductive metal block is also provided inside the cabinet, and the connecting block is connected to the conductive metal block by a spring. The connecting block is electrically connected to the first terminal block through the spring and the conductive metal block.

[0011] Preferably, the linear motor, the connecting block, the connecting seat, the current sensor, the conductive metal block, and the spring are all in pairs and correspond one-to-one.

[0012] Preferably, the control mechanism further includes a fixed plate and two spring telescopic rods, each corresponding to a connecting block. One end of each spring telescopic rod is hinged to the fixed plate, and the other end is hinged to the corresponding connecting block.

[0013] Preferably, the spring telescopic rod is hinged to the corresponding connecting block via a first connecting hinge, and the spring telescopic rod is hinged to the fixed disk via a second connecting hinge.

[0014] Preferably, the output end of the linear motor is fixedly connected to a displacement frame, the displacement frame is connected to a fixed connecting frame, and the fixed connecting frame is fixedly connected to the connecting block.

[0015] Preferably, the cabinet is also provided with a number of control buttons, which are respectively connected to the controller signal.

[0016] Preferably, the connection mechanism further includes a docking guide disposed outside the cabinet, wherein the first terminal is electrically connected to the connecting block through the docking guide, and the second terminal is electrically connected to the connecting seat through the docking guide.

[0017] Preferably, the cabinet is equipped with a movable door.

[0018] Preferably, the insulating shell is made of plastic.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker of the present invention detects the current through a current sensor. For small currents and circuit faults, the current sensor can accurately sense them and transmit the signal to the controller. When the current value detected by the current sensor is greater than the set value, the controller quickly controls the linear motor to work, drives the connecting block to move, and makes the moving contact and stationary contact quickly separate to achieve circuit breaking protection. In addition, the current value can be displayed on the touch screen in real time, so that the user can observe the current value in real time.

[0021] Furthermore, the spring and spring extension rod provide resistance when the connecting block moves toward the connecting seat, making the connection between the moving contact and the stationary contact more stable. In addition, the spring can provide tension to the connecting block when the moving contact and the stationary contact separate, while the spring extension rod can provide a pushing force to the connecting block, enabling the connecting block to leave the connecting seat more efficiently and increasing the speed at which the moving contact and the stationary contact separate.

[0022] Furthermore, in the event of a linear motor failure, the spring and spring extension rod can drive the connecting block away from the connecting seat, thereby separating the moving contact from the stationary contact and improving the safety of the circuit breaker cabinet.

[0023] Furthermore, users can actively control the contact and separation of the moving and stationary contacts via the touchscreen, depending on the actual situation. For example, during circuit maintenance or debugging, the moving and stationary contacts can be separated via the touchscreen to cut off the circuit. Alternatively, the contact and separation of the moving and stationary contacts can be actively controlled via the control buttons on the cabinet, enabling a rapid response and circuit cutoff in emergencies, thus improving operational convenience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to the present invention. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the structure of a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to the present invention. Figure 3 ;

[0028] Figure 4 This is a schematic diagram of the circuit breaker structure of the present invention;

[0029] Figure 5 This is a schematic diagram showing the disassembled structure of the circuit breaker of the present invention;

[0030] Figure 6 This is a schematic diagram of the control mechanism in this invention;

[0031] In the diagram: 1. First terminal block; 2. Cabinet; 3. Touch screen; 4. Circuit breaker structure; 5. Docking guide; 6. Movable door; 7. Protective seat; 8. Insulating shell; 9. Control mechanism; 10. Controller; 11. Linear motor; 12. Displacement frame; 13. Spring; 14. First docking hinge; 15. Connecting block; 16. Fixed frame; 17. Spring telescopic rod; 18. Connecting seat; 19. Second docking hinge; 20. Fixed plate; 21. Second terminal block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] The purpose of this invention is to provide a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker to solve the problems existing in the prior art and achieve efficient and stable control of the vacuum circuit breaker.

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 6 As shown, this embodiment provides a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker, comprising:

[0036] Cabinet 2, with a touch screen 3 installed on it;

[0037] The circuit breaker structure 4 includes a protective base 7, an insulating housing 8, and a control mechanism 9. The protective base 7 and the insulating housing 8 are both housed inside the cabinet 2. The control mechanism 9 is housed inside the protective base 7. The insulating housing 8 is fixedly connected to the side of the protective base 7 away from the control mechanism 9. The control mechanism 9 includes a connecting block 15, a connecting seat 18, a current sensor, a controller 10, and a linear motor 11. A moving contact is fixed on the connecting block 15, and a stationary contact is provided inside the connecting seat 18. The linear motor 11 is used to drive the connecting block 15 to move so that the moving contact contacts or separates from the stationary contact. The controller 10 is used to control the operation of the linear motor 11. The current sensor is used to detect the current between the connecting block 15 and the connecting seat 18. The current sensor, the controller 10, and the touch screen 3 are sequentially connected by signals.

[0038] The connection mechanism includes a first terminal 1 and a second terminal 21 respectively fixed outside the cabinet 2. The first terminal 1 is electrically connected to the connecting block 15, and the second terminal 21 is electrically connected to the connecting seat 18. Both the first terminal 1 and the second terminal 21 are used to connect external cables.

[0039] In this embodiment, a current sensor is used to detect the current. The current sensor can accurately detect small currents and circuit faults and transmit the signal to the controller 10. When the current value detected by the current sensor is greater than the set value, the controller 10 quickly controls the linear motor 11 to work, driving the connecting block 15 to move, so that the moving contact and the stationary contact are quickly separated, realizing circuit breaker protection. In addition, the current value can also be displayed on the touch screen 3 in real time, so that the user can observe the current value in real time.

[0040] In the optional embodiments of this example, a preferred embodiment includes a conductive metal block inside the cabinet 2. The connecting block 15 is connected to the conductive metal block via a spring 13, and the connecting block 15 is electrically connected to the first terminal 1 via the spring 13 and the conductive metal block. The arrangement of the spring 13 and the conductive metal block ensures the stability and conductivity of the circuit connection, ensuring that the circuit breaker can operate normally under high current and high voltage conditions, thus improving the electrical performance and reliability of the entire circuit breaker cabinet. The spring 13 provides resistance when the connecting block 15 moves toward the connecting seat 18, making the connection between the moving contact and the stationary contact more stable. In addition, the spring 13 also provides tension to the connecting block 15 when the moving contact and the stationary contact separate, allowing the connecting block 15 to leave the connecting seat 18 more efficiently and increasing the speed of separation between the moving contact and the stationary contact.

[0041] In the optional embodiments of this example, a preferred configuration is that each of the linear motor 11, connecting block 15, connecting seat 18, current sensor, conductive metal block, and spring 13 is present in pairs and corresponds one-to-one. This arrangement forms two parallel paths, enabling current shunting and improving the load-bearing capacity of the circuit breaker structure 4. Furthermore, the two linear motors 11 drive their respective connecting blocks 15, allowing for precise control of two independent circuits or different parts of the same circuit. When one circuit fails, the corresponding linear motor 11 can control the connecting block 15, separating the moving contact from the stationary contact to disconnect the faulty circuit without affecting the normal operation of the other circuit, thus improving the flexibility and reliability of circuit control.

[0042] In an optional embodiment, a preferred embodiment includes a fixed plate 20 and two spring telescopic rods 17. Each spring telescopic rod 17 corresponds to a connecting block 15, with one end of the spring telescopic rod 17 hinged to the fixed plate 20 and the other end hinged to the corresponding connecting block 15. When the linear motor 11 fails, the spring 13 and the spring telescopic rod 17 can drive the connecting block 15 away from the connecting seat 18, thereby separating the moving contact from the stationary contact and improving the safety of the circuit breaker cabinet. The spring telescopic rod 17 provides resistance when the connecting block 15 moves towards the connecting seat 18, making the connection between the moving contact and the stationary contact more stable. When the moving contact separates from the stationary contact, the spring telescopic rod 17 provides a thrust to the connecting block 15, allowing the connecting block 15 to leave the connecting seat 18 more efficiently and increasing the speed of separation between the moving contact and the stationary contact.

[0043] In this embodiment, the spring telescopic rod 17 is hinged to the corresponding connecting block 15 via the first docking hinge rod 14, and the spring telescopic rod 17 is hinged to the fixed disk 20 via the second docking hinge rod 19.

[0044] In a preferred embodiment, the output end of the linear motor 11 is fixedly connected to a displacement frame 12, which is connected to a fixed link 16. The fixed link 16 is fixedly connected to the connecting block 15. The linear motor 11 can directly convert electrical energy into linear motion mechanical energy, featuring high precision, high speed, and high responsiveness. Through the connection of the displacement frame 12 and the fixed link 16, the linear motion of the linear motor 11 can be accurately transmitted to the connecting block 15. This connection method enables precise control of the position of the connecting block 15, ensuring the positional accuracy of the moving and stationary contacts during contact and separation, thereby improving the accuracy and reliability of the circuit breaker's operation and ensuring stable circuit switching control under different operating conditions.

[0045] In a preferred embodiment, the cabinet 2 is further equipped with several control buttons, each connected to the controller 10 via signals. These control buttons provide operators with a direct and convenient manual control method. In special circumstances, such as system debugging, fault diagnosis, or when emergency intervention in the circuit is required, operators can quickly send signals to the controller 10 by pressing the corresponding control button, thereby controlling the operation of the linear motor 11 and controlling the on / off state of the circuit breaker. This manual control method is unaffected by automatic control programs or other external factors, ensuring that operators can take swift action in emergencies and safeguarding the circuit system.

[0046] In an optional embodiment, a preferred embodiment includes a docking guide 5 disposed outside the cabinet 2. The first terminal 1 is electrically connected to the connecting block 15 via the docking guide 5, and the second terminal 21 is electrically connected to the connecting seat 18 via the docking guide 5. The docking guide 5 provides a stable conduction path for the electrical connection between the first terminal 1 and the connecting block 15, and between the second terminal 21 and the connecting seat 18. This ensures good contact at the connection points, reduces contact resistance, and minimizes problems such as overheating and arcing caused by poor contact, thereby improving the stability and reliability of the entire circuit connection and ensuring the electrical performance of the circuit breaker cabinet during long-term operation.

[0047] In the optional embodiments of this example, a preferred option is that the cabinet 2 is equipped with a movable door 6. When maintenance, repair, or component replacement is required inside the cabinet 2, the movable door 6 can be opened, allowing staff to easily access and operate the various components. The movable door 6 makes maintenance work more convenient, improves maintenance efficiency, and reduces maintenance time and costs. The movable door 6 also makes the overall appearance of the cabinet neater and more aesthetically pleasing, enhancing the overall image of the equipment. Simultaneously, closing the movable door 6 effectively prevents dust from entering the cabinet 2, keeping the interior clean and reducing problems such as poor heat dissipation and decreased insulation performance caused by dust accumulation.

[0048] In the optional solutions of this embodiment, it is more preferred that the material of the insulating shell 8 is plastic; plastic has good insulation properties and can effectively prevent electrical accidents such as leakage and short circuit.

[0049] The specific usage method of the compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker in this embodiment is as follows:

[0050] First, the compact circuit breaker cabinet equipped with the wall-mounted vacuum circuit breaker of this embodiment is installed in the designated location using a suitable wall-mounting method, ensuring that the installation is secure and complies with electrical safety regulations. The external cable is connected to the first terminal 1 and the second terminal 21, ensuring a reliable electrical connection. The first terminal 1 is electrically connected to the connecting block 15 via the mating guide 5, the conductive metal block, and the spring 13. The second terminal 21 is electrically connected to the connecting seat 18. After the connection is completed, the movable door 6 is closed.

[0051] Then, turn on the power to cabinet 2, and set the relevant parameters of the circuit breaker, such as the current protection threshold, through the touch screen 3 on cabinet 2. At the same time, the current sensor detects the current between the connecting block 15 and the connecting seat 18 in real time, and transmits the current signal to the controller 10 and the touch screen 3 in sequence. The user can monitor the current value in real time on the touch screen 3. The control buttons on cabinet 2 can also be used for control. The user can send signals to the controller 10 through the control buttons according to actual needs, and then control the operation of the linear motor 11.

[0052] When the circuit is working normally, the linear motor 11 does not operate, the moving contact and the stationary contact remain in contact, and the current forms a loop through the connecting block 15, the moving contact, the stationary contact and the connecting seat 18, ensuring the normal conduction of the circuit.

[0053] If a minute current change or fault occurs in the circuit, the current sensor accurately senses it and transmits the signal to the controller 10. When the current value detected by the current sensor is greater than the set value, the controller 10 quickly controls the linear motor 11 to work. The linear motor 11 drives the connecting block 15 to move through the displacement frame 12 and the fixed connecting frame 16, so that the moving contact and the stationary contact are quickly separated, realizing circuit breaking protection. During this process, the spring 13 provides a pulling force to the connecting block 15 when the moving contact and the stationary contact are separated, and the spring extension rod 17 provides a pushing force to the connecting block 15, so that the connecting block 15 can leave the connecting seat 18 more efficiently, increasing the speed of separation of the moving contact and the stationary contact and improving the response efficiency of the circuit breaker.

[0054] Users can actively control the contact and separation of the moving and stationary contacts via the touchscreen 3 according to actual conditions. For example, during circuit maintenance or debugging, the moving and stationary contacts can be separated via the touchscreen 3 to cut off the circuit. The contact and separation of the moving and stationary contacts can also be actively controlled via the control buttons on the cabinet 2, enabling a rapid response and circuit cutoff in emergencies, thus improving operational convenience.

[0055] During use, the movable door 6 can be opened periodically to check the operation of each component of the circuit breaker structure 4, such as checking whether the spring 13 is deformed or whether the linear motor 11 is operating normally. When it is necessary to repair or replace internal components, the connection between the external cable and the first terminal 1 and the second terminal 21 can be disconnected to facilitate the inspection, repair, or replacement of components such as the connecting block 15, connecting seat 18, and current sensor inside the cabinet 2, ensuring the normal operation of the circuit breaker cabinet.

[0056] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A compact breaker cabinet for use with a wall-mounted vacuum circuit breaker, characterized by, The utility model relates to a kind of circuit breaker, including: Cabinet, which is provided with a touch screen; A circuit breaker structure, which includes a protection seat, an insulating housing and a control mechanism, the protection seat and the insulating housing are both arranged in the cabinet, the control mechanism is arranged in the protection seat, and the insulating housing is fixedly connected to the side of the protection seat away from the control mechanism;The control mechanism includes a communication block, a communication seat, a current sensor, a controller and a linear motor, the moving contact is fixedly arranged on the communication block, the static contact is arranged in the communication seat, the linear motor is used to drive the communication block to move to make the moving contact contact or separate from the static contact, the controller is used to control the operation of the linear motor, and the current sensor is used to detect the current between the communication block and the communication seat, and the current sensor, the controller and the touch screen are sequentially signal connected; A connecting mechanism, which includes a first terminal post and a second terminal post fixedly arranged outside the cabinet respectively, the first terminal post is electrically connected to the communication block, and the second terminal post is electrically connected to the communication seat;The first terminal post and the second terminal post are both used to connect external cables; The cabinet is also provided with a conductive metal block, the communication block is connected to the conductive metal block through a spring, and the communication block is electrically connected to the first terminal post through the spring and the conductive metal block;The linear motor, the communication block, the communication seat, the current sensor, the conductive metal block and the spring are all two and one-to-one corresponding;The control mechanism also includes a fixed disc and two spring telescopic rods, the spring telescopic rods correspond to the communication blocks one by one, one end of the spring telescopic rods is hingedly connected to the fixed disc, and the other end is hingedly connected to the corresponding communication block.

2. The compact breaker cabinet for wall-mounted vacuum breakers of claim 1, wherein: The spring telescopic rod is hingedly connected to the corresponding communication block through a first docking hinge rod, and the spring telescopic rod is hingedly connected to the fixed disc through a second docking hinge rod.

3. The compact circuit breaker cabinet for wall mounting with vacuum circuit breakers according to claim 1, characterized in that: The output end of the linear motor is fixedly connected with a displacement frame, the displacement frame is connected with a fixed connecting frame, and the fixed connecting frame is fixedly connected to the communication block.

4. The compact circuit breaker cabinet for wall mounting with vacuum circuit breakers according to claim 1, characterized in that: The cabinet is also provided with a plurality of control buttons, and the control buttons are signal connected to the controller respectively.

5. The compact circuit breaker cabinet for wall mounting with vacuum circuit breakers according to claim 1, characterized in that: The connecting mechanism also includes a docking guide base arranged outside the cabinet, the first terminal post is electrically connected to the communication block through the docking guide base, and the second terminal post is electrically connected to the communication seat through the docking guide base.

6. The compact circuit breaker cabinet for wall mounting with vacuum circuit breakers according to claim 1, characterized in that: The cabinet is provided with a movable door.

7. The compact circuit breaker cabinet for wall mounting vacuum circuit breakers according to claim 1, characterized in that: The material of the insulating housing is plastic.

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