Compact circuit breaker cabinet matched with wall-mounted vacuum circuit breaker

Abstract

The invention 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 the cabinet body is provided with a touch screen; the circuit breaker structure comprises a protection base, an insulation shell and a control mechanism, the control mechanism comprises a communication block, a communication base, a current sensor, a controller and a linear motor, a moving contact is fixedly arranged on the communication block, a static contact is arranged in the communication base, and the linear motor is used for driving the communication block to move so that the moving contact can make contact with or be separated from the static contact. The current sensor is used for detecting current between the communication block and the communication seat, and the current sensor, the controller and the touch screen are in signal connection in sequence; the connecting mechanism comprises a first binding post and a second binding post which are fixedly arranged outside the cabinet body. For micro current and circuit faults, the current sensor can accurately sense the micro current and circuit faults, and when the current is abnormal, the controller can control the linear motor to work so that the moving contact and the static contact can be rapidly separated, and circuit break protection is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker cabinets, in particular to a compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker. Background Art

[0002] Low-voltage circuit breakers, also known as automatic air switches, are mainly used in AC and DC low-voltage power grids. They can open and close circuits manually or electrically, and can protect circuits or electrical equipment from overload, short circuit, and undervoltage. They can also be used to start motors infrequently and are important control and protection electrical appliances.

[0003] Existing compact circuit breaker cabinets equipped with wall-mounted vacuum circuit breakers achieve the purpose of circuit breaking control through mechanical structures. The current circuit breakers are relatively fast for larger currents, but they have problems with slow response to small currents and circuit faults. In addition, the current circuit breakers cannot be adjusted efficiently and stably, making them inconvenient to use. Summary of the Invention

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

[0005] To achieve the above object, the present invention provides the following solutions:

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

[0007] A cabinet body, wherein a touch screen is provided on the cabinet body;

[0008] A circuit breaker structure, comprising a protective seat, an insulating shell and a control mechanism, wherein the protective seat and the insulating shell are both disposed in the cabinet, the control mechanism is disposed in the protective seat, and the insulating shell is fixedly connected to a side of the protective seat away from the control mechanism; the control mechanism comprises a connecting block, a connecting seat, a current sensor, a controller and a linear motor, a moving contact being fixed on the connecting block, a static contact being disposed in the connecting seat, the linear motor being used to drive the connecting block to move so that the moving contact contacts or separates from the static contact, the controller being used to control the operation of the linear motor, the current sensor being used to detect the current between the connecting block and the connecting seat, and the current sensor, the controller and the touch screen being sequentially signal-connected;

[0009] The connecting mechanism includes a first terminal and a second terminal respectively fixed outside the cabinet body, the first terminal is electrically connected to the connecting block, and the second terminal is electrically connected to the connecting seat; the first terminal and the second terminal are both used to connect external cables.

[0010] Preferably, a conductive metal block is further provided in the cabinet, the connecting block is connected to the conductive metal block via a spring, and the connecting block is electrically connected to the first terminal via 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 each two and correspond one to one.

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

[0013] Preferably, the spring telescopic rod is hinged to the corresponding communicating hole via a first butt hinge rod, and the spring telescopic rod is hinged to the fixed plate via a second butt hinge rod.

[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 further provided with a plurality of control buttons, and the control buttons are respectively connected to the controller signals.

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

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

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

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker of the present invention detects current conditions through a current sensor. The current sensor can accurately sense small currents and circuit faults and transmit signals to a controller. When the current value detected by the current sensor is greater than a set value, the controller quickly controls the linear motor to drive the connecting block to move, so that the moving contact and the static contact are quickly separated to achieve circuit breaker protection. In addition, the current value can also be displayed in real time on the touch screen, so that users can conveniently observe the current value in real time.

[0021] Furthermore, the arrangement of the spring and the spring telescopic rod can provide resistance when the connecting block moves toward the connecting seat, making the connection between the moving contact and the static contact more stable; in addition, the spring can also provide a pulling force to the connecting block when the moving contact is separated from the static contact, and the spring telescopic rod can provide a thrust to the connecting block, so that the connecting block can leave the connecting seat more efficiently, increasing the speed of separation of the moving contact and the static contact.

[0022] Furthermore, when the linear motor fails, the spring and the spring telescopic rod can drive the connecting block away from the connecting seat, so that the moving contact is separated from the static contact, thereby 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 based on actual conditions. For example, during circuit maintenance or debugging, the moving and stationary contacts can be separated via touchscreen operation to disconnect the circuit. The contact and separation of the moving and stationary contacts can also be actively controlled via control buttons on the cabinet, enabling rapid response and circuit disconnection in emergency situations, improving operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[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 structural diagram of the circuit breaker structure of the present invention;

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

[0030] Figure 6 Schematic diagram of the structure of the control mechanism of the present invention;

[0031] In the figure: 1. First terminal; 2. Cabinet; 3. Touch screen; 4. Circuit breaker structure; 5. Docking guide seat; 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 connecting frame; 17. Spring telescopic rod; 18. Connecting seat; 19. Second docking hinge; 20. Fixed plate; 21. Second terminal. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

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

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is 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] A cabinet 2 is provided with a touch screen 3;

[0037] The circuit breaker structure 4 includes a protection seat 7, an insulating shell 8 and a control mechanism 9. The protection seat 7 and the insulating shell 8 are both arranged in the cabinet 2. The control mechanism 9 is arranged in the protection seat 7. The insulating shell 8 is fixedly connected to the side of the protection seat 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 static contact is provided in 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 with the static 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 connected in sequence.

[0038] The connecting 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. The first terminal 1 and the second terminal 21 are both used to connect external cables.

[0039] This embodiment detects the current condition through a current sensor. For small currents and circuit faults, the current sensor can accurately sense 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, drives the connecting block 15 to move, and quickly separates the moving contact and the static contact to achieve circuit breaker protection; in addition, the current value can also be displayed in real time on the touch screen 3, so that users can observe the current value in real time.

[0040] In an optional solution of this embodiment, it is preferred that a conductive metal block is further provided within the cabinet 2. The connecting block 15 is connected to the conductive metal block via a spring 13. The connecting block 15 is electrically connected to the first terminal 1 via the spring 13 and the conductive metal block. The provision 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, thereby improving the electrical performance and reliability of the entire circuit breaker cabinet. The provision of the spring 13 can provide resistance to the movement of the connecting block 15 toward the connecting seat 18, thereby making the connection between the moving contact and the static contact more stable. In addition, the spring 13 can also provide a pulling force to the connecting block 15 when the moving contact and the static contact separate, allowing the connecting block 15 to more efficiently leave the connecting seat 18 and increase the speed of separation of the moving contact and the static contact.

[0041] Among the optional solutions of this embodiment, it is preferred that two linear motors 11, connecting blocks 15, connecting seats 18, current sensors, conductive metal blocks, and springs 13 are each provided, and that they correspond one to another. This arrangement forms two parallel pathways, which can divert current and thus improve the load-bearing capacity of the circuit breaker structure 4. The two linear motors 11 each drive the corresponding connecting blocks 15, enabling precise control of two independent circuits or different parts of the same circuit. If a fault occurs in one circuit, the corresponding linear motor 11 can control the connecting block 15, separating the moving contact from the static contact, thus severing the faulty circuit without affecting the normal operation of the other circuit, thereby improving the flexibility and reliability of circuit control.

[0042] In an optional solution of this embodiment, it is more preferred that the control mechanism 9 further includes a fixed disk 20 and two spring telescopic rods 17. The spring telescopic rods 17 correspond one-to-one with the connecting blocks 15. One end of the spring telescopic rod 17 is hinged to the fixed disk 20, and the other end is 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, so that the moving contact and the static contact are separated, thereby improving the safety of the circuit breaker cabinet; the provision of the spring telescopic rod 17 can provide resistance to the movement of the connecting block 15 toward the connecting seat 18, making the connection between the moving contact and the static contact more stable. When the moving contact and the static contact are separated, the spring telescopic rod 17 can provide a thrust 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 static contact.

[0043] In this embodiment, the spring telescopic rod 17 is hinged to the corresponding communicating hole through the first docking hinge 14 , and the spring telescopic rod 17 is hinged to the fixing plate 20 through the second docking hinge 19 .

[0044] In the optional scheme of this embodiment, it is more preferred that the output end of the linear motor 11 is fixedly connected to the displacement frame 12, the displacement frame 12 is connected to the fixed connecting frame 16, and the fixed connecting frame 16 is fixedly connected to the connecting block 15; the linear motor 11 can directly convert electrical energy into mechanical energy of linear motion, and has the characteristics of high precision, high speed and high responsiveness. Through the connection between the displacement frame 12 and the fixed connecting frame 16, the linear motion of the linear motor 11 can be accurately transmitted to the connecting block 15. This connection method can achieve precise control of the position of the connecting block 15, ensuring the position accuracy of the moving contact and the static contact when they are in contact and separated, thereby improving the operation accuracy and reliability of the circuit breaker and ensuring that the circuit on and off control can be stably achieved under different operating conditions.

[0045] In the optional scheme of this embodiment, it is more preferred that a plurality of control buttons are further provided on the cabinet 2, and the control buttons are respectively connected to the controller 10 by signal. The control buttons provide the operator with a direct and convenient manual control method. In some special cases, such as system debugging, troubleshooting or when emergency intervention in the circuit state is required, the operator can quickly send a signal to the controller 10 by pressing the corresponding control button, thereby controlling the operation of the linear motor 11 and realizing the on-off control of the circuit breaker. This manual control method is not affected by the automatic control program or other external factors, and can ensure that the operator can take quick action in an emergency to ensure the safety of the circuit system.

[0046] In an optional solution of this embodiment, the connection mechanism preferably further includes a docking guide 5 disposed outside the cabinet body 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 conductive 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 mitigates problems such as heat and sparking 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 solution of this embodiment, it is more preferred that the cabinet body 2 is provided with a movable door 6; when it is necessary to perform maintenance, inspection, or replace components inside the cabinet body 2, the movable door 6 can be opened to facilitate staff to access various components and perform operations. The provision of the movable door 6 makes maintenance work more convenient, improves maintenance efficiency, and reduces maintenance time and costs. The movable door 6 can make the overall appearance of the cabinet body more neat and beautiful, and enhance the overall image of the equipment. At the same time, closing the movable door 6 can effectively prevent dust from entering the cabinet body 1, keeping the interior clean, and reducing problems such as poor heat dissipation and reduced 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 the occurrence of electrical accidents such as leakage and short circuit.

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

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

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

[0052] When the circuit works normally, the linear motor 11 does not move, the moving contact and the static contact remain in contact, and the current forms a loop through the connecting block 15, the moving contact, the static contact and the connecting seat 18 to ensure normal conduction of the circuit.

[0053] If a slight 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 operate. 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 static contact are quickly separated to achieve circuit breaker protection. During this process, the spring 13 provides a pulling force to the connecting block 15 when the moving contact and the static contact separate, and the spring telescopic rod 17 provides a thrust to the connecting block 15, so that the connecting block 15 can leave the connecting seat 18 more efficiently, increase the speed of separation of the moving contact and the static contact, and improve the response efficiency of the circuit breaker.

[0054] The user can actively control the contact and separation of the moving and stationary contacts via touch screen 3 based on actual conditions. For example, during circuit maintenance or debugging, the user can use touch screen 3 to separate the moving and stationary contacts, disconnecting the circuit. The contact and separation of the moving and stationary contacts can also be actively controlled via control buttons on the cabinet 2. In an emergency, this allows for rapid response and circuit disconnection, improving operational convenience.

[0055] During use, the movable door 6 can be opened periodically to check the operating conditions of the various components of the circuit breaker structure 4, such as whether the spring 13 is deformed and whether the linear motor 11 is operating normally. When internal components need to be inspected or replaced, the external cables can be disconnected from the first and second terminal posts 1, 21 to conveniently inspect, repair, or replace components such as the connecting block 15, connecting seat 18, and current sensor inside the cabinet body 2, ensuring the normal operation of the circuit breaker cabinet.

[0056] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker, characterized in that: include: A cabinet body, wherein a touch screen is provided on the cabinet body; A circuit breaker structure, comprising a protective seat, an insulating shell and a control mechanism, wherein the protective seat and the insulating shell are both disposed in the cabinet, the control mechanism is disposed in the protective seat, and the insulating shell is fixedly connected to a side of the protective seat away from the control mechanism; the control mechanism comprises a connecting block, a connecting seat, a current sensor, a controller and a linear motor, a moving contact being fixed on the connecting block, a static contact being disposed in the connecting seat, the linear motor being used to drive the connecting block to move so that the moving contact contacts or separates from the static contact, the controller being used to control the operation of the linear motor, the current sensor being used to detect the current between the connecting block and the connecting seat, and the current sensor, the controller and the touch screen being sequentially signal-connected; The connecting mechanism includes a first terminal and a second terminal respectively fixed outside the cabinet body, the first terminal is electrically connected to the connecting block, and the second terminal is electrically connected to the connecting seat; the first terminal and the second terminal are both used to connect external cables.

2. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 1, characterized in that: A conductive metal block is further provided in the cabinet, the connecting block is connected to the conductive metal block via a spring, and the connecting block is electrically connected to the first terminal via the spring and the conductive metal block.

3. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 2, characterized in that: There are two of the linear motor, the connecting block, the connecting seat, the current sensor, the conductive metal block and the spring, and they correspond to each other one by one.

4. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 3, characterized in that: The control mechanism further includes a fixed disk and two spring telescopic rods, wherein the spring telescopic rods correspond to the connecting blocks one by one, one end of the spring telescopic rods is hinged to the fixed disk, and the other end is hinged to the corresponding connecting block.

5. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 4, characterized in that: The spring telescopic rod is hinged to the corresponding communicating hole through a first butt hinge rod, and the spring telescopic rod is hinged to the fixing plate through a second butt hinge rod.

6. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 1, characterized in that: 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.

7. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 1, characterized in that: The cabinet is also provided with a plurality of control buttons, which are respectively connected to the controller signals.

8. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 1, characterized in that: The connection mechanism further includes a docking guide seat provided outside the cabinet body, the first terminal is electrically connected to the connecting block via the docking guide seat, and the second terminal is electrically connected to the connecting seat via the docking guide seat.

9. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 1, characterized in that: The cabinet body is provided with a movable door.

10. The compact circuit breaker cabinet equipped with a wall-mounted vacuum circuit breaker according to claim 1, characterized in that: The insulating shell is made of plastic.

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