A 3P miniature circuit breaker intelligent power distribution module connection device

Abstract

This utility model relates to the field of connection device technology, and in particular to a connection device for a 3P miniature circuit breaker intelligent power distribution module. It primarily addresses the problem that existing fixed-structure connection devices cannot accommodate the height differences between 3P miniature circuit breakers from different manufacturers, increasing installation complexity, extending construction time, and hindering the stable and safe operation of the power distribution system. The proposed technical solution includes a circuit breaker body with multiple sets of first connection holes on both sides, and an intelligent module. The intelligent module includes a housing with an opening on one side, and multiple sets of protrusions installed on the side of the housing near the circuit breaker body. Multiple sets of first electrode plates are fixedly connected to the protrusions. This utility model simplifies the installation process, reduces construction difficulty, and enhances connection stability through a positioning mechanism, preventing structural loosening and safety hazards, and ensuring the stable and safe operation of the power distribution system.

Description

Technical Field

[0001] This utility model relates to the field of connection device technology, and in particular to a connection device for a 3P miniature circuit breaker intelligent power distribution module. Background Technology

[0002] In low-voltage power distribution systems, 3P miniature circuit breakers, as core components for overload and short-circuit protection, are widely used in industrial control, civil buildings, and other fields. With the increasing demand for intelligent upgrades in power distribution systems, 3P miniature circuit breakers often need to be connected to intelligent power distribution modules (such as data acquisition modules and remote control modules) to achieve intelligent functions such as power parameter monitoring, fault warning, and remote opening and closing. This has become the mainstream trend in the development of current power distribution equipment.

[0003] However, in practical applications, different manufacturers produce 3P miniature circuit breakers with significant differences in structural dimensions based on their own design standards, technical routes, and product positioning. Particularly in height, different models of 3P miniature circuit breakers can vary in height by 5–15 mm. When these 3P miniature circuit breakers of varying heights are assembled with intelligent power distribution modules using existing connection devices, the fixed structure design of these devices makes it impossible to adapt to the height differences of the circuit breakers. This results in a lack of a unified installation reference plane at the bottom of all the 3P miniature circuit breakers after assembly. Consequently, when fixing the assembled structure to distribution boxes, cabinets, or other mounting carriers, stable assembly cannot be achieved using uniform fixing holes or mounting brackets. Individual adjustments or the addition of shims are required for circuit breakers of different heights, increasing the complexity of the installation process and extending on-site construction time. If forcibly fixed according to the same benchmark, gaps will form between the bottom of some circuit breakers and the mounting carrier, resulting in insufficient stability of the overall assembly structure. During long-term use, it is prone to loosening due to factors such as vibration and current surges, which will affect the reliability of circuit connections and may even cause safety hazards such as poor contact and arc discharge, which is detrimental to the stable operation and safety of the power distribution system. In view of this, this utility model proposes a 3P miniature circuit breaker intelligent power distribution module connection device. Utility Model Content

[0004] The purpose of this invention is to address the problem that in the background technology, there are height differences between 3P miniature circuit breakers from different manufacturers. Existing fixed-structure connection devices cannot adapt to this height difference, which increases the complexity of the installation process, prolongs the construction time, and is not conducive to the stable and safe operation of the power distribution system. Therefore, this invention proposes an intelligent power distribution module connection device for 3P miniature circuit breakers.

[0005] The technical solution of this utility model is as follows: A 3P miniature circuit breaker intelligent power distribution module connection device, including a circuit breaker body, with multiple sets of first connection holes on both sides of the circuit breaker body, and further including: an intelligent module, the intelligent module including a housing with an opening on one side, multiple sets of protrusions installed on the side of the housing near the circuit breaker body, multiple sets of first electrode plates fixedly connected to the protrusions, the multiple sets of first electrode plates extending into the housing and connected to a circuit board; a positioning mechanism disposed in the intelligent module, the positioning mechanism being used to fix the position of the intelligent module; and an adjustment component installed in the intelligent module, the adjustment component being used to adapt to circuit breaker bodies of different heights.

[0006] Optionally, the housing is provided with multiple sets of second connection holes on the side away from the circuit breaker body, and a second electrode plate is provided in the second connection hole. A screw is installed on the side of the second connection hole away from the second electrode plate, and the second electrode plate is electrically connected to the circuit board.

[0007] Optionally, the circuit board integrates a metering module, a protection module, and a communication module.

[0008] Optionally, the positioning mechanism includes a cavity disposed on the side of the housing near the protrusion, a first threaded rod rotatably connected in the cavity, the two ends of the first threaded rod having opposite thread directions and being threadedly connected to threaded sleeves respectively, the threaded sleeves being slidably connected in the cavity, and a support plate being fixedly connected to both sets of threaded sleeves on the side near the protrusion, a sliding groove being provided on the side of the housing, the support plate being slidably connected in the sliding groove, and the two sets of support plates being located on both sides of multiple sets of protrusions.

[0009] Optionally, both ends of the first threaded rod penetrate the housing and are fixedly connected to a first rotating block.

[0010] Optionally, the adjustment assembly includes a base plate disposed on one side of the housing opening, a closed frame fixedly connected to the base plate near the housing, the closed frame being slidably connected to the inside of the housing, and multiple sets of limiting cylinders fixedly connected to the base plate near the housing, with limiting rods slidably connected in the limiting cylinders and the limiting rods being fixedly connected to the housing.

[0011] Optionally, a fixing post is fixedly connected to the side of the base plate near the shell. A threaded groove is opened at the end of the fixing post away from the base plate. A second threaded rod is threadedly connected in the threaded groove. One end of the second threaded rod passes through the shell and is fixedly connected to a second rotating block. A limit ring is fitted around the outer ring of the second threaded rod, and the limit ring fits against the inner wall of the shell.

[0012] Optionally, the housing opening faces the circuit breaker body mounting surface.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This utility model rotates the second rotating block to drive the second threaded rod to rotate, so that the fixed column drives the base plate to move smoothly along the guide of the limiting cylinder and the limiting rod until the base plate and the circuit breaker body mounting surface are on the same plane, thus forming a unified installation benchmark. This completely solves the problem of the existing connection device being non-coplanar at the bottom due to the difference in circuit breaker height, which makes installation inconvenient. No additional shims or adjustment procedures are required, which significantly simplifies the installation process and reduces the difficulty of construction.

[0015] Furthermore, the first threaded rod with a reverse thread design can drive the two sets of support plates to move synchronously in opposite directions along the slide groove until they are tightly fitted with the edge of the first connection hole of the circuit breaker body, effectively limiting the left and right swaying of the intelligent module. Combined with the cooperation of the protrusion and the first connection hole, the connection stability between the circuit breaker body and the intelligent module is further enhanced, avoiding structural loosening caused by vibration and current impact during long-term use, and ensuring the reliability of circuit connection.

[0016] In summary, this utility model simplifies the installation process and reduces construction difficulty. At the same time, it enhances connection stability by using a positioning mechanism, avoids structural loosening and safety hazards, and ensures the stable and safe operation of the power distribution system. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a 3P miniature circuit breaker intelligent power distribution module connection device;

[0018] Figure 2 This is a structural diagram of the intelligent module;

[0019] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the first threaded rod;

[0021] Figure 5 This is a cross-sectional structural diagram of the base plate.

[0022] Figure label:

[0023] 1. Circuit breaker body; 11. First connection hole;

[0024] 2. Intelligent module; 21. Housing; 22. Protrusion; 23. First electrode plate; 24. Circuit board; 25. Second connection hole; 26. Second electrode plate; 27. Screw;

[0025] 3. Positioning mechanism; 31. Cavity; 32. First threaded rod; 33. Threaded sleeve; 34. Support plate; 35. Slide groove; 36. First rotating block;

[0026] 4. Adjustment assembly; 41. Base plate; 42. Enclosed frame; 43. Limiting cylinder; 44. Limiting rod; 45. Fixing column; 46. Threaded groove; 47. Second threaded rod; 48. Second rotating block; 49. Limiting ring. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example

[0033] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5As shown, this utility model proposes a 3P miniature circuit breaker intelligent power distribution module connection device, including a circuit breaker body 1. Multiple sets of first connection holes 11 are opened on both sides of the circuit breaker body 1. The circuit breaker body 1 is existing technology and will not be described in detail here. It also includes an intelligent module 2, which includes a housing 21 with an opening on one side. The opening of the housing 21 faces the mounting surface of the circuit breaker body 1, facilitating the adjustment component 4 to be on the same plane as the circuit breaker body 1, thus ensuring stable installation. Multiple sets of protrusions 22 are installed on the side of the housing 21 near the circuit breaker body 1. Multiple sets of first electrode plates 23 are fixedly connected to the protrusions 22. After the multiple sets of protrusions 22 are inserted into the first connection holes 11 on the side of the circuit breaker body 1, they are electrically connected to the circuit breaker body 1 through the first electrode plates 23. The multiple sets of first electrode plates 23 extend into the housing 21 and are connected to a circuit board 24. The circuit board 24 integrates a metering module, a protection module, and a communication module. The metering module is used to accurately measure electrical parameters such as current, voltage, and power. The protection module can realize multiple protection functions such as overload protection, short circuit protection, and leakage protection. The communication module supports Ethernet communication, enabling remote monitoring and data transmission. All modules are existing technologies and will not be described in detail here. Multiple sets of second connection holes 25 are provided on the side of the housing 21 away from the circuit breaker body 1. Second electrode plates 26 are installed in the second connection holes 25. Screws 27 are installed on the side of the second connection holes 25 away from the second electrode plates 26. The second electrode plates 26 are electrically connected to the circuit board 24, facilitating electrical connection of the end of the intelligent module 2 away from the circuit breaker body 1.

[0034] For further details, please refer to Figures 2 to 4 The aforementioned connecting device includes a positioning mechanism 3 disposed in the intelligent module 2, which is used to fix the position of the intelligent module 2. The positioning mechanism 3 includes a cavity 31 disposed on the side of the housing 21 near the protrusion 22. A first threaded rod 32 is rotatably connected in the cavity 31. Both ends of the first threaded rod 32 penetrate the housing 21 and are fixedly connected to a first rotating block 36. The first rotating block 36 has a cross groove. The limiting effect of the first rotating block 36 keeps the first threaded rod 32 in its original position and allows the first threaded rod 32 to be rotated using tools such as screwdrivers. The two ends of the first threaded rod 32 have opposite thread directions and are respectively threadedly connected to threaded sleeves 33. The threaded sleeves 33 are slidably connected in the cavity 31. When the threaded sleeves 33 rotate, they drive the two sets of first threaded rods 32 to move synchronously in the cavity 31 in opposite directions. Each of the two sets of threaded sleeves 33 is fixedly connected to a support plate 34 near the protrusion 22. A sliding groove 35 is provided on the side of the housing 21, and the support plate 34 is slidably connected in the sliding groove 35. When the threaded sleeves 33 move, they drive the support plate 34 to move synchronously. The two sets of support plates 34 are located on both sides of the multiple protrusions 22, so that when the two sets of support plates 34 move away from each other, they contact the first connecting holes 11 on both sides, thereby fixing the position of the housing 21 and preventing it from swaying left and right.

[0035] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, the above-mentioned connection device also includes an adjustment component 4 installed in the intelligent module 2. The adjustment component 4 is used to adapt to circuit breaker bodies 1 of different heights. The adjustment component 4 includes a base plate 41 disposed on one side of the opening of the housing 21. A closed frame 42 is fixedly connected to the base plate 41 near the housing 21. The closed frame 42 moves synchronously with the base plate 41. The closed frame 42 is slidably connected to the inside of the housing 21 to prevent gaps from appearing between the housing 21 and the base plate 41 when adjusting the position of the base plate 41. The closed frame 42 prevents external dust from entering the housing 21. Multiple sets of limiting cylinders 43 are fixedly connected to the base plate 41 near the housing 21. Limiting rods 44 are slidably connected in the limiting cylinders 43. The limiting rods 44 are fixedly connected to the housing 21. The limiting action of the limiting cylinders 43 and the limiting rods 44 makes the base plate 41 move smoothly relative to the housing 21. A fixing column 45 is fixedly connected to the base plate 41 near the housing 21. The fixing column 45 moves synchronously with the base plate 41. The fixed post 45 has a threaded groove 46 at the end away from the base plate 41. A second threaded rod 47 is threaded into the threaded groove 46. One end of the second threaded rod 47 passes through the housing 21 and is fixedly connected to a second rotating block 48. The second rotating block 48 has a cross groove, which facilitates the rotation of the second threaded rod 47. A limit ring 49 is fitted around the outer ring of the second threaded rod 47. The limit ring 49 fits against the inner wall of the housing 21. The action of the second rotating block 48 and the limit ring 49 keeps the second threaded rod 47 in its original position and allows it to rotate. As the second threaded rod 47 rotates, the fixed post 45 moves along the length of the second threaded rod 47 through the threaded groove 46, thereby adjusting the position of the base plate 41 so that the side of the base plate 41 away from the housing 21 is on the same plane as the mounting surface of the circuit breaker body 1, thus ensuring stable installation.

[0036] In this embodiment, firstly, the opening of the housing 21 of the intelligent module 2 is oriented towards the mounting surface of the circuit breaker body 1, and the multiple sets of protrusions 22 on the side of the housing 21 closest to the circuit breaker body 1 are aligned with the multiple sets of first connection holes 11 on both sides of the circuit breaker body 1. The protrusions 22 are then inserted into the first connection holes 11, and the connecting screws on the circuit breaker body 1 are tightened. At this time, the multiple sets of first electrode plates 23 fixedly connected to the protrusions 22 make contact with the internal circuit of the circuit breaker body 1, realizing the initial electrical connection between the circuit breaker body 1 and the intelligent module 2. The first electrode plates 23 extend into the housing 21 and are connected to the circuit board 24. The metering module, protection module, and communication module integrated on the circuit board 24 can obtain the electrical parameters of the circuit breaker body 1 through the first electrode plates 23: the metering module measures current, voltage, power, and other data in real time; the protection module monitors abnormal states such as circuit overload, short circuit, and leakage; and the communication module transmits data to the remote monitoring terminal via Ethernet. The end of the intelligent module 2 away from the circuit breaker body 1 is fixed with an external wire through the second connection hole 25 on the housing 21 and a screw 27, so that the wire contacts the second electrode plate 26 in the second connection hole 25, and then the second electrode plate 26 is electrically connected to the circuit board 24 to complete the circuit connection.

[0037] After the protrusion 22 is inserted into the first connecting hole 11, a screwdriver is inserted into the cross groove of the first rotating block 36, and the first rotating block 36 is rotated, causing the first threaded rod 32, which is fixedly connected to the first rotating block 36, to rotate in place within the cavity 31 of the housing 21. Since the threads at both ends of the first threaded rod 32 are in opposite directions and are respectively threadedly connected to threaded sleeves 33, the threaded sleeves 33 are restricted by the inner wall of the cavity 31 and cannot rotate with the first threaded rod 32. Therefore, the two sets of threaded sleeves 33 will move synchronously in opposite directions along the cavity 31 when the first threaded rod 32 rotates. The support plate 34 fixed to the side of the threaded sleeve 33 near the protrusion 22 moves synchronously with the threaded sleeve 33, and the support plate 34 slides within the groove 35 on the side of the housing 21. When the two sets of support plates 34 move to close contact with the edges of the first connection holes 11 on both sides of the circuit breaker body 1, the first rotating block 36 stops rotating. At this time, the support plates 34, through compression and limiting, stably fix the housing 21 on one side of the mounting surface of the circuit breaker body 1, effectively preventing the intelligent module 2 from wobbling left and right, fixing the relative position of the intelligent module 2 and the circuit breaker body 1, and avoiding the housing 21 from shifting left and right during the assembly process.

[0038] To address the height differences of different circuit breaker body 1 models, a screwdriver is inserted into the cross groove of the second rotating block 48, and the second rotating block 48 is rotated, causing the second threaded rod 47, which is fixedly connected to the second rotating block 48, to rotate. The limiting ring 49 on the outer ring of the second threaded rod 47 fits against the inner wall of the housing 21, and the second rotating block 48 contacts the outer wall of the housing 21. Both of these elements work together to limit the rotation, ensuring that the second threaded rod 47 rotates only in its original position without axial movement. The end of the second threaded rod 47 furthest from the second rotating block 48 is threaded into the threaded groove 46 of the fixed column 45. The fixed column 45 is fixedly connected to the base plate 41. Therefore, when the second threaded rod 47 rotates, the fixed column 45 moves up and down along the length of the second threaded rod 47, thereby causing the base plate 41 to move synchronously. During this process, the limiting cylinder 43 on the side of the base plate 41 closest to the housing 21 slides along the limiting rod 44. Through the cooperation between the limiting cylinder 43 and the limiting rod 44, the base plate 41 moves smoothly and avoids deviation. Meanwhile, the enclosed frame 42 on the base plate 41 slides along the inner side of the housing 21, always blocking the gap between the housing 21 and the base plate 41, preventing external dust from entering the housing 21 and affecting the operation of the circuit board 24. When it is confirmed by observation or measurement that the side of the base plate 41 away from the housing 21 is flush with the mounting surface of the circuit breaker body 1, the rotation of the second rotating block 48 is stopped. At this time, the adjustment component 4 completes the height adaptation, and the bottom of the entire connecting device forms a unified mounting reference plane. It can be fixed to the distribution box, distribution cabinet and other mounting carriers by the base plate 41 and the circuit breaker body 1, so as to achieve stable assembly.

[0039] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A 3P miniature circuit breaker intelligent power distribution module connecting device, comprising a circuit breaker body (1), a plurality of first connecting holes (11) are formed on both sides of the circuit breaker body (1), characterized in that, Also includes: The intelligent module (2) includes a housing (21) with an opening on one side. Multiple sets of protrusions (22) are installed on the side of the housing (21) near the circuit breaker body (1). Multiple sets of first electrode plates (23) are fixedly connected to the protrusions (22). The multiple sets of first electrode plates (23) extend into the housing (21) and are connected to a circuit board (24). The positioning mechanism (3) is provided in the intelligent module (2) and is used to fix the position of the intelligent module (2); The adjustment component (4) installed in the intelligent module (2) is used to adapt to the circuit breaker body (1) at different heights.

2. The 3P miniature circuit breaker intelligent power distribution module connecting device according to claim 1, characterized in that, The housing (21) is provided with multiple sets of second connection holes (25) on the side away from the circuit breaker body (1). A second electrode plate (26) is provided in the second connection hole (25). A screw (27) is installed on the side of the second connection hole (25) away from the second electrode plate (26). The second electrode plate (26) is electrically connected to the circuit board (24).

3. The 3P miniature circuit breaker intelligent power distribution module connecting device according to claim 2, characterized in that, The circuit board (24) integrates a metering module, a protection module and a communication module.

4. The 3P miniature circuit breaker intelligent power distribution module connecting device according to claim 3, characterized in that, The positioning mechanism (3) includes a cavity (31) disposed on the side of the housing (21) near the protrusion (22). A first threaded rod (32) is rotatably connected in the cavity (31). The first threaded rod (32) has opposite thread directions at both ends and is threadedly connected to threaded sleeves (33). The threaded sleeves (33) are slidably connected in the cavity (31). Support plates (34) are fixedly connected to both sets of threaded sleeves (33) on the side near the protrusion (22). A sliding groove (35) is opened on the side of the housing (21). The support plates (34) are slidably connected in the sliding groove (35). The two sets of support plates (34) are located on both sides of multiple sets of protrusions (22).

5. The 3P miniature circuit breaker intelligent power distribution module connecting device of claim 4, wherein, Both ends of the first threaded rod (32) pass through the housing (21) and are fixedly connected to the first rotating block (36).

6. The 3P miniature circuit breaker intelligent power distribution module connecting device of claim 5, wherein, The adjustment assembly (4) includes a base plate (41) disposed on one side of the opening of the housing (21). A closed frame (42) is fixedly connected to the side of the base plate (41) near the housing (21). The closed frame (42) is slidably connected to the inside of the housing (21). Multiple sets of limiting cylinders (43) are fixedly connected to the side of the base plate (41) near the housing (21). A limiting rod (44) is slidably connected in the limiting cylinder (43). The limiting rod (44) is fixedly connected to the housing (21).

7. The 3P miniature circuit breaker intelligent power distribution module connecting device of claim 6, wherein, A fixing post (45) is fixedly connected to the side of the base plate (41) near the shell (21). A threaded groove (46) is provided at the end of the fixing post (45) away from the base plate (41). A second threaded rod (47) is threadedly connected in the threaded groove (46). One end of the second threaded rod (47) passes through the shell (21) and is fixedly connected to a second rotating block (48). A limit ring (49) is fitted on the outer ring of the second threaded rod (47). The limit ring (49) fits against the inner wall of the shell (21).

8. The 3P miniature circuit breaker intelligent power distribution module connecting device of claim 7, wherein, The opening of the housing (21) faces the mounting surface of the circuit breaker body (1).

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