Visual monitoring device for secondary circuit of circuit breaker
By designing a sliding connection structure for the card plate, card slot block, and limit mechanism, the problems of the circuit breaker monitoring device being inconvenient to carry and time-consuming to fix are solved, enabling quick loading and unloading and stable installation, thereby improving maintenance efficiency and the stability of the power module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-04-14
AI Technical Summary
Existing circuit breaker monitoring devices are inconvenient to carry and take a long time to install and remove, which affects the efficiency of maintenance operations.
A visual monitoring device was designed, comprising a monitor, a display screen, a power module, and a monitoring sensor module. It employs a card plate, a card slot block, and a limiting mechanism, and achieves rapid loading and unloading and stable fixation through sliding connections and a spring structure.
It improves the efficiency of loading and unloading and the stability of fixing the monitoring device, reduces maintenance time, and enhances the installation stability of the power module.
Smart Images

Figure CN224122718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of circuit breaker monitoring devices, specifically a visual monitoring device for the secondary circuit of a circuit breaker. Background Technology
[0002] A circuit breaker is a switching device that, according to specified conditions, performs switching operations on and off of power distribution circuits, motors, or other electrical equipment and provides protection. The secondary circuit of a circuit breaker refers to an electrical system connected to the circuit, consisting of interconnected secondary devices that form an electrical circuit for monitoring, controlling, regulating, and protecting the primary equipment. These secondary devices typically include measuring instruments, relays, control and signaling elements, automatic devices, relay protection devices, current transformers, voltage transformers, etc.
[0003] The secondary circuit of a circuit breaker needs to be connected to the secondary control circuit using a monitoring device. The device monitors signals through sensors and displays them in waveform and graphical form to monitor the circuit breaker. However, the existing monitoring devices are not portable and require a lot of time to install and remove. This makes it difficult to disassemble and repair the monitoring devices during maintenance, thus affecting the maintenance work of the monitoring devices. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a visual monitoring device for the secondary circuit of a circuit breaker, which solves the technical problem that the aforementioned monitoring devices are inconvenient to carry and require a lot of time for fixing and unloading, making it difficult to disassemble and repair the monitoring devices during maintenance, thus affecting the maintenance work of the monitoring devices.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a visual monitoring device for the secondary circuit of a circuit breaker, comprising: a monitor, a display screen, a power supply module, and a monitoring sensor module. The display screen and the power supply module are both mounted on the front of the monitor, the monitoring sensor module is mounted on the outside of the monitor, a retaining plate is mounted on the back of the monitor, a retaining block is slidably connected to the outside of the retaining plate, and the retaining block is connected to the mounting plate through a bearing with a seat. Limiting mechanisms are mounted on both sides of the retaining block.
[0008] The limiting mechanism includes a vertical plate and a protrusion. The protrusion is inserted on both sides of the slot block. The vertical plate is slidably disposed on both sides of the slot block. A second spring is installed between the vertical plate and the slot block. A sliding plate is installed on the front of the mounting plate. Slots are opened on both sides of the outer side of the mounting plate.
[0009] Preferably, the assembly plate has a groove on its outside, the groove is slidably connected to the slide plate, and a first spring is connected between the groove and the slide plate. The groove can guide the slide plate to move in a straight line, and the groove can move against the slide plate. At the same time, the elasticity of the groove is greater than the elasticity of the second spring, so the slide plate can move against the vertical plate.
[0010] Preferably, the card slot block has a track groove inside, and the bottom of the inner side of the track groove and the bottom of the card plate are both designed with rounded corners. The card slot block can guide the card plate, and the rounded corner design can improve the smoothness of movement between the card plate and the card slot block.
[0011] Preferably, the slot is adapted to the protrusion, and both sides of the protrusion are rounded. The protrusion can slide inside the slot and be inserted into the slot to limit the position of the card plate.
[0012] Preferably, the outer sides of the slot block are provided with slide rail grooves adapted to the vertical plate, and the slide rail grooves are slidably connected to the vertical plate, so that the slot block can guide the vertical plate to make it move in a straight line.
[0013] Preferably, the assembly plate has uniformly spaced assembly holes on its exterior, and a rubber plate is fitted on the back of the assembly plate. Both the assembly holes and the rubber plate facilitate the assembly and fixing of the assembly plate by the workers.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a visual monitoring device for the secondary circuit of a circuit breaker, which has the following beneficial effects:
[0016] This circuit breaker secondary circuit visualization monitoring device uses added clamping plates, slot blocks, and sliding plates to quickly assemble the monitor, facilitating easy installation and removal and improving the speed of monitor maintenance. Furthermore, the addition of a vertical plate, a second spring, and protrusions automatically re-secures the monitor within the slot blocks during initial fixing, significantly enhancing its stability. Additionally, the power module design, with its heavier weight at one end, allows the monitor to tilt towards that end during installation, preventing accidental repositioning and ensuring proper fixation, thus improving the stability of the power module assembly. Attached Figure Description
[0017] Figure 1 This is a front view of the present utility model;
[0018] Figure 2 This is a schematic diagram of the external appearance of the assembly plate of this utility model;
[0019] Figure 3This is a schematic diagram of the back of the monitor of this utility model;
[0020] Figure 4 This is a plan view of the assembly plate of this utility model.
[0021] In the diagram: 1. Monitor; 2. Display screen; 3. Power module; 4. Monitoring sensor module; 5. Assembly plate; 51. First spring; 52. Slide groove; 53. Assembly hole; 6. Limiting mechanism; 61. Vertical plate; 62. Second spring; 63. Protrusion; 7. Card plate; 71. Card slot; 8. Card slot block; 9. Slide plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides a technical solution, please refer to [link / reference]. Figure 1 and Figure 2 A visual monitoring device for the secondary circuit of a circuit breaker includes: a monitor 1, a display screen 2, a power supply module 3, and a monitoring sensor module 4. The display screen 2 and the power supply module 3 are both mounted on the front of the monitor 1. The monitoring sensor module 4 is mounted on the outside of the monitor 1. A card plate 7 is mounted on the back of the monitor 1. A card slot block 8 is slidably connected to the outside of the card plate 7. The card slot block 8 is connected to the mounting plate 5 through a bearing with a seat. Limiting mechanisms 6 are mounted on both sides of the outside of the card slot block 8.
[0024] The monitor 1 is a detection device for circuit breakers in the prior art. The display screen 2 is used to display monitoring data. The power module 3 is used to provide power to the monitor 1. The monitoring sensor module 4 is used to monitor the circuit breaker. The card plate 7 can be inserted into the card slot block 8. The card slot block 8 can rotate 90 degrees to one end of the mounting plate 5 facing the slide plate 9.
[0025] Please see Figure 3 and Figure 4 The limiting mechanism 6 includes a vertical plate 61 and a protrusion 63. The protrusion 63 is inserted on both sides of the slot block 8. The vertical plate 61 is slidably disposed on both sides of the slot block 8. A second spring 62 is installed between the vertical plate 61 and the slot block 8. A sliding plate 9 is installed on the front of the mounting plate 5. Slots 71 are opened on both sides of the outer side of the card plate 7.
[0026] The vertical plate 61 can be driven by the slide plate 9 outside the slot block 8. The vertical plate 61 can move by abutting the protrusion 63 and insert into the slot 71. The second spring 62 can drive the device to return to its original position and then drive the vertical plate 61 to return to its original position. Both ends of the protrusion 63 are designed with rounded corners. When the protrusion 63 is not restricted by the vertical plate 61, the return of the slot plate 7 will be achieved by abutting the protrusion 63 through the rounded corners.
[0027] The assembly plate 5 has a groove 52 on its outside. The groove 52 is slidably connected to the slide plate 9. A first spring 51 is connected between the groove 52 and the slide plate 9. The groove 52 can guide the slide plate 9 to move in a straight line. The groove 52 can move against the slide plate 9. At the same time, the elasticity of the groove 52 is greater than the elasticity of the second spring 62. Therefore, the slide plate 9 can move against the vertical plate 61.
[0028] The slot block 8 has a track groove inside, and the bottom of the inner side of the track groove and the bottom of the card plate 7 are both rounded. The slot block 8 can guide the card plate 7. At the same time, the rounded corner design can improve the smoothness of movement between the card plate 7 and the slot block 8. The slot 71 is adapted to the protrusion 63, and both sides of the protrusion 63 are rounded. The protrusion 63 can slide inside the slot block 8 and insert into the slot 71 to limit the position of the card plate 7.
[0029] The outer sides of the slot block 8 are provided with slide rail grooves that are compatible with the vertical plate 61, and the slide rail grooves are slidably connected to the vertical plate 61. The slot block 8 can guide the vertical plate 61 to make it move in a straight line. The outer side of the assembly plate 5 is provided with assembly holes 53 evenly, and the back of the assembly plate 5 is fitted with a rubber plate. The assembly holes 53 and the rubber plate are convenient for workers to assemble and fix the assembly plate 5.
[0030] This solution first fixes the assembly plate 5 with bolts and assembly holes 53. When the monitor 1 needs to be installed, the clamping plate 7 is inserted into the slot block 8 and rotated toward one end of the slide plate 9 so that the slide plate 9 closes the opening of the slot block 8. At the same time, the slide plate 9 abuts against the vertical plate 61 and descends, driving the protrusion 63 to move and insert into the slot 71, thereby completely fixing and assembling the monitor 1. When disassembling, the slot block 8 is rotated back to its original position and the clamping plate 7 is pulled out to complete the disassembly.
[0031] During use, the monitoring sensor module 4 detects the secondary circuit of the circuit breaker, and the monitoring data is displayed on the display screen 2. The power supply module 3 supplies power to the entire device. Due to the setting of the power supply module 3, one end of the monitor 1 is heavier, so the monitor 1 is tilted towards one end during installation to prevent the power supply module 3 from being accidentally pushed back to its original position during installation, which would cause the fixing to fail and thus improve the stability of the power supply module 3 during assembly.
[0032] The added card plate 7, card slot block 8, and slide plate 9 allow for quick assembly of the monitor 1, and facilitate disassembly of the monitor 1, improving the speed of maintenance. Furthermore, the added vertical plate 61, second spring 62, and protrusion 63 automatically re-fix the monitor 1 within the card slot block 8 when it is initially secured, significantly enhancing its stability. Additionally, the design of the power module 3, which makes one end of the monitor 1 heavier, causes it to tilt towards one end during installation, preventing accidental repositioning and ensuring proper fixation, thus improving the stability of the power module 3 during assembly.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A visual monitoring device for the secondary circuit of a circuit breaker, comprising: The monitor (1), display screen (2), power module (3) and monitoring sensor module (4) are mounted on the front of the monitor (1) and the monitoring sensor module (4) is mounted on the outside of the monitor (1). The monitor (1) is characterized in that: a card plate (7) is mounted on the back of the monitor (1), a card slot block (8) is slidably connected to the outside of the card plate (7), and the card slot block (8) is connected to the mounting plate (5) through a bearing seat. Limiting mechanisms (6) are mounted on both sides of the card slot block (8). The limiting mechanism (6) includes a vertical plate (61) and a protrusion (63). The protrusion (63) is inserted into both sides of the slot block (8). The vertical plate (61) is slidably disposed on both sides of the slot block (8). A second spring (62) is assembled between the vertical plate (61) and the slot block (8). A sliding plate (9) is assembled on the front of the mounting plate (5). Slots (71) are provided on both sides of the outer side of the card plate (7).
2. The visual monitoring device for secondary circuits of a circuit breaker according to claim 1, characterized in that: The assembly plate (5) has a groove (52) on its outside. The groove (52) is slidably connected to the slide plate (9), and a first spring (51) is connected between the groove (52) and the slide plate (9).
3. The visual monitoring device for secondary circuits of a circuit breaker according to claim 1, characterized in that: The card slot block (8) has a track groove inside, and the bottom of the inner side of the track groove and the bottom of the card plate (7) are both designed with rounded corners.
4. The visual monitoring device for the secondary circuit of a circuit breaker according to claim 1, characterized in that: The slot (71) is adapted to the protrusion (63), and both sides of the protrusion (63) are rounded.
5. The visual monitoring device for the secondary circuit of a circuit breaker according to claim 1, characterized in that: The card slot block (8) has slide rail grooves on both sides of its exterior that are adapted to the vertical plate (61), and the slide rail grooves are slidably connected to the vertical plate (61).
6. The visual monitoring device for the secondary circuit of a circuit breaker according to claim 1, characterized in that: The assembly plate (5) has uniformly opened assembly holes (53) on its exterior, and a rubber plate is assembled on the back of the assembly plate (5).