Residual-current circuit breaker device
Through simplified structural design, the copper coil is used to drive the turntable to rotate, and the separation of the copper plate and the conductive plate is achieved, solving the problems of cumbersome assembly and high production costs caused by the complex structure of the existing leakage circuit breaker, and realizing the circuit and effective protection of equipment and cost reduction.
Patent Information
- Application Number
- CN202421090414.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The buckles and jumpers of existing leakage circuit breakers have complex structures, resulting in cumbersome assembly and increased production costs.
Using a simplified structural design, including the limit plate, turntable, lever, copper plate and spring in the circuit breaker body. The copper coil drives the turntable through the magnetic field to separate the copper plate and conductor plate, thereby disconnecting the circuit. , simplifies the assembly process and reduces production costs.
It realizes effective protection of circuits and equipment, simplifies the assembly process and reduces production costs.
Smart Images
Figure CN222260939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to a leakage circuit breaker device. Background Art
[0002] Patent No. CN217768269U discloses a leakage circuit breaker. The utility model has the advantages of reasonable structural design, stable and reliable performance, convenient assembly, and safety and reliability.
[0003] However, in the above-mentioned existing residual current circuit breaker, the lock buckle is provided with a buckling inclined surface matched with the jump buckle, and one end of the jump buckle abuts against the buckling inclined surface, and a limit fit between the lock buckle and the jump buckle is formed. The lock buckle is provided with a buckling inclined surface matched with the jump buckle, which can ensure that the lock buckle and the jump buckle will not be stuck to each other when tripping, which is conducive to improving the tripping sensitivity of the residual current circuit breaker. The internal structure of the device is relatively complex, which makes the assembly more complicated and increases the production cost.
[0004] In order to solve the above problems, the utility model provides a leakage circuit breaker device. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a leakage circuit breaker device to solve the technical problems in the prior art that "the lock buckle is provided with a buckling inclined surface matching with the jump buckle, and one end of the jump buckle is in contact with the buckling inclined surface, and constitutes a limit fit between the lock buckle and the jump buckle. The lock buckle is provided with a buckling inclined surface matching with the jump buckle, which can ensure that the lock buckle and the jump buckle will not be stuck to each other when tripping, which is beneficial to improving the tripping sensitivity of the leakage circuit breaker. The internal structure of the device is relatively complex, which makes the assembly more cumbersome and increases the production cost."
[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: it includes a circuit breaker body, the inner wall of the short circuit body is fixedly connected with two limit plates, a turntable is rotatably connected between the two limit plates, a lever is fixedly connected to the side of the turntable, and a limit rod is fixedly connected to the side of the turntable at the same time, the lower end face of the limit rod is fixedly connected with a copper sheet, the right side of the turntable is rotatably connected with a connecting plate, the lower end face of the connecting plate is fixedly connected with a spring, the bottom end of the spring is fixedly connected to the inner wall of the circuit breaker body, a limit block is fixedly connected inside the circuit breaker body, two power-on rods are fixedly connected inside the limit block, the upper end face of the limit block is fixedly connected with a power-on conductive sheet, the surface of the power-on rod is threadedly connected with a connecting sleeve, a fixing rod is fixedly connected inside the circuit breaker body, and a copper coil is fixedly sleeved on the surface of the fixing rod.
[0007] As a preferred technical solution of the utility model, a through hole is opened on the front side of the circuit breaker body, and the surface of the lever is arranged in the through hole.
[0008] As a preferred technical solution of the utility model, the current-carrying conductive sheet is electrically connected to the copper sheet, and the current-carrying conductive sheet is electrically connected to the current-carrying rod.
[0009] As a preferred technical solution of the utility model, the lower end surface of the copper sheet abuts against the upper end surface of the current-carrying conductive sheet, and the connecting sleeve is connected to the current-carrying rod by an electric wire.
[0010] As a preferred technical solution of the utility model, an iron sheet is fixedly connected to the upper end surface of the limit rod, and the iron sheet is magnetically connected to the copper coil.
[0011] As a preferred technical solution of the utility model, the width of the rotating disk matches the distance between the two limiting plates, and the copper coil is electrically connected to the circuit in the circuit breaker body.
[0012] The utility model provides a leakage circuit breaker device, which has the following beneficial effects:
[0013] When the current exceeds the set value, the magnetic field generated by the copper coil will drive the turntable to rotate through the iron sheet, and separate the copper sheet from the energized conductive sheet, disconnecting the entire circuit and protecting the circuit and its equipment. Since there are fewer structures inside the equipment, it is convenient to assemble and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure proposed by the utility model;
[0015] Figure 2 The utility model provides a schematic diagram of the structure of the copper coil;
[0016] Figure 3 This is a schematic diagram of the structure of the current conducting sheet proposed in the utility model;
[0017] Figure 4 A schematic diagram of the structure of the limit block proposed for the utility model;
[0018] Figure 5 The utility model provides a schematic diagram of the structure of the turntable;
[0019] Figure 6 This is a schematic diagram of the circuit connection structure proposed by the utility model;
[0020] Figure 7 This is a schematic diagram of the circuit disconnection structure proposed by the utility model.
[0021] In the figure: 1 circuit breaker body, 2 through hole, 3 lever, 4 limit plate, 5 fixing rod, 6 copper coil, 7 limit block, 8 power conducting sheet, 9 power rod, 10 connecting sleeve, 11 turntable, 12 connecting plate, 13 spring, 14 limit rod, 15 iron sheet, 16 copper sheet. DETAILED DESCRIPTION
[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0023] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.
[0024] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments:
[0025] refer to Figure 1-7 A leakage circuit breaker device comprises a circuit breaker body 1, two limit plates 4 are fixedly connected to the inner wall of the short circuit body, a turntable 11 is rotatably connected between the two limit plates 4, a lever 3 is fixedly connected to the side of the turntable 11, a limit rod 14 is fixedly connected to the side of the turntable 11 at the same time, a copper sheet 16 is fixedly connected to the lower end surface of the limit rod 14, a connecting plate 12 is rotatably connected to the right side of the turntable 11, a spring 13 is fixedly connected to the lower end surface of the connecting plate 12, the bottom end of the spring 13 is fixedly connected to the inner wall of the circuit breaker body 1, a limit block 7 is fixedly connected in the circuit breaker body 1, two power-on rods 9 are fixedly connected in the limit block 7, a power-on conductive sheet 8 is fixedly connected to the upper end surface of the limit block 7, a connecting sleeve 10 is threadedly connected to the surface of the power-on rod 9, a fixing rod 5 is fixedly connected in the circuit breaker body 1, and a copper coil 6 is fixedly sleeved on the surface of the fixing rod 5.
[0026] By providing the copper coil 6 , the magnetic field generated when the copper coil 6 is energized will attract the iron sheet 15 , and the iron sheet 15 will drive the turntable 11 to rotate through the limiting rod 14 .
[0027] Furthermore, a through hole 2 is provided on the front side of the circuit breaker body 1 , and the surface of the lever 3 is arranged in the through hole 2 .
[0028] Furthermore, the current conducting piece 8 is electrically connected to the copper sheet 16 , and the current conducting piece 8 is electrically connected to the current conducting rod 9 .
[0029] The entire circuit can be connected by connecting the copper sheet 16 to the current-carrying conductive sheet 8. When the copper sheet 16 is separated from the current-carrying conductive sheet 8, the entire circuit is in an open circuit state.
[0030] Furthermore, the lower end surface of the copper sheet 16 abuts against the upper end surface of the current-carrying conductive sheet 8 , and the connecting sleeve 10 and the current-carrying rod 9 are connected by electric wires.
[0031] Furthermore, an iron sheet 15 is fixedly connected to the upper end surface of the limiting rod 14 , and the iron sheet 15 is magnetically connected to the copper coil 6 .
[0032] By providing the iron sheet 15 and the magnetic connection between the iron sheet 15 and the copper coil 6, when the current in the circuit exceeds the safety value, the copper coil 6 will attract the iron sheet 15 to move.
[0033] Furthermore, the width of the rotating disk 11 matches the distance between the two limiting plates 4 , and the copper coil 6 is electrically connected to the circuit in the circuit breaker body 1 .
[0034] The working principle of the utility model is as follows: first, the staff can connect the wires in the circuit to the power rod 9 through the connecting sleeve 10, so that the device can be connected to the circuit. In normal use, the spring 13 will pull the turntable 11 under the action of its own elastic force and push the copper sheet 16 against the power conducting sheet 8 through the limit rod 14. When the current in the circuit exceeds the safety value, the magnetic field generated by the copper coil 6 will attract the iron sheet 15 to move upward, and the iron sheet 15 will drive the turntable 11 to move counterclockwise through the limit rod 14, so that the copper sheet 16 is separated from the power conducting sheet 8. At this time, the circuit is in an open circuit state. Figure 7 As shown, after the staff has finished the circuit maintenance and inspection, the staff can drive the turntable 11 to rotate clockwise through the lever 3 to restore the entire device to the initial position so that the circuit is connected;
[0035] Compared with the prior art, the present invention realizes the protection of the circuit and the equipment thereof, and because there are fewer structures in the equipment, the assembly is convenient and the production cost is reduced.
[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A leakage circuit breaker device, comprising a circuit breaker body (1), characterized in that: Two limit plates (4) are fixedly connected to the inner wall of the circuit breaker body, a rotating disk (11) is rotatably connected between the two limit plates (4), a shifting rod (3) is fixedly connected to the side of the rotating disk (11), a limit rod (14) is fixedly connected to the side of the rotating disk (11), a copper sheet (16) is fixedly connected to the lower end surface of the limit rod (14), a connecting plate (12) is rotatably connected to the right side surface of the rotating disk (11), and a spring (13) is fixedly connected to the lower end surface of the connecting plate (12). ), the bottom end of the spring (13) is fixedly connected to the inner wall of the circuit breaker body (1), a limit block (7) is fixedly connected inside the circuit breaker body (1), two power-carrying rods (9) are fixedly connected inside the limit block (7), a power-carrying conductive sheet (8) is fixedly connected to the upper end surface of the limit block (7), a connecting sleeve (10) is threadedly connected to the surface of the power-carrying rod (9), a fixing rod (5) is fixedly connected to the inside of the circuit breaker body (1), and a copper coil (6) is fixedly sleeved on the surface of the fixing rod (5).
2. A leakage circuit breaker device according to claim 1, characterized in that: A through hole (2) is provided on the front side of the circuit breaker body (1), and the surface of the lever (3) is arranged in the through hole (2).
3. A leakage circuit breaker device according to claim 1, characterized in that: The current-carrying conductive sheet (8) is electrically connected to the copper sheet (16), and the current-carrying conductive sheet (8) is electrically connected to the current-carrying rod (9).
4. A leakage circuit breaker device according to claim 1, characterized in that: The lower end surface of the copper sheet (16) abuts against the upper end surface of the current-carrying conductive sheet (8), and the connecting sleeve (10) is connected to the current-carrying rod (9) by an electric wire.
5. A leakage circuit breaker device according to claim 1, characterized in that: An iron sheet (15) is fixedly connected to the upper end surface of the limiting rod (14), and the iron sheet (15) is magnetically connected to the copper coil (6).
6. A leakage circuit breaker device according to claim 1, characterized in that: The width of the rotating disk (11) matches the distance between the two limiting plates (4), and the copper coil (6) is electrically connected to the circuit in the circuit breaker body (1).