A modular combination mounted electronic circuit breaker

Abstract

The utility model provides a kind of modularization combined installation's electronic circuit breaker, it is related to electronic circuit breaker technical field.The modularization combined installation's electronic circuit breaker, including at least two device bodies, the device body both sides are provided with two limit plates, the limit plate side is equipped with wire slot, wire slot is connected with connecting rod in plug-in connection, the connecting rod includes two mutually mirror symmetry, and mutually fixed connecting's convex rod, convex rod is compatible with the wire slot, the device body is provided with the limit component of limiting convex rod sliding in wire slot interior;The modularization combined installation's electronic circuit breaker is designed by connecting rod and wire slot, realizes quick connection, without additional connecting piece, greatly simplifies installation process, improves the installation efficiency of multiple electronic circuit breaker mutual modularization assembly.

Description

Technical Field

[0001] This utility model relates to a modularly assembled electronic circuit breaker, specifically a modularly assembled electronic circuit breaker, belonging to the field of electronic circuit breaker technology. Background Technology

[0002] An electronic residual current circuit breaker (RCCB) is an electrical device that provides leakage and electric shock protection by detecting residual current. It consists of a zero-sequence current transformer, an electronically controlled residual current trip unit, and a circuit breaker with overload and short-circuit protection. Its core components utilize electronic components or integrated circuits. When the leakage current reaches a set value (30 mA), the trip mechanism is triggered to cut off the power supply. Based on load type, it can be divided into AC type (linear load), A type (rectifier load), and B type (three-phase frequency converter load), with pole numbers covering 2P, 3P, and 4P to adapt to different circuit structures.

[0003] In modern electrical systems, the installation and combined use of electronic circuit breakers are becoming increasingly common. Especially in relatively confined spaces, such as small distribution cabinets and household electrical boxes, compactly installing multiple circuit breakers not only effectively saves valuable space resources but also significantly reduces the overall footprint. This is particularly important for facilities with limited space and compact layouts. However, in practice, additional connectors are usually required to securely connect two circuit breakers together to ensure their normal operation and safety. For example, using multiple bolts or screws can be cumbersome, requiring the tightening of numerous screws or bolts for the installation of a single electronic circuit breaker. Therefore, a convenient and efficient quick-connect device is urgently needed to simplify the installation process, improve installation efficiency, and ensure the stability and reliability of the connection. Summary of the Invention

[0004] (a) Technical problems to be solved The purpose of this invention is to provide a modularly assembled electronic circuit breaker to solve the above-mentioned problems, thereby addressing the issue that assembling multiple electronic circuit breakers together in the prior art is very troublesome.

[0005] (II) Technical Solution This utility model is achieved through the following technical solution: a modularly assembled electronic circuit breaker, comprising at least two device bodies, each device body having two limiting plates on both sides, each limiting plate having a groove on one side, a connecting rod inserted into the groove, the connecting rod comprising two mutually mirror-symmetrical and fixedly connected convex rods, the convex rods being adapted to the groove, and the device body having a limiting component for restricting the sliding of the convex rods inside the groove.

[0006] Preferably, two docking rods are fixedly connected to the opposing sides of the two sets of limiting plates, and a hidden groove is provided on one side of the limiting plate. A threaded hole is formed on the inner wall of the hidden groove, and a threaded rod is threadedly connected in the threaded hole. The nut at the end of the threaded rod is located inside the hidden groove. A limiting groove adapted to the limiting plate is provided on the side of the device body opposite to the limiting plate. A through docking groove is provided at the corresponding position of the limiting groove relative to the docking rod, and the docking rod is adapted to the docking groove.

[0007] Preferably, the limiting component includes a pin, a pin groove is formed on the inner wall of the hidden groove, the pin is slidably disposed inside the pin groove, and a spring is provided between one end of the pin and the end of the pin groove. The limiting plate has a through hole at the corresponding position of the pin groove, and a slot is provided at one end of the convex rod opposite to the pin groove.

[0008] Preferably, a circular hole is formed on the inner wall of one side of the pin groove, and a first stabilizing rod is slidably connected in the circular hole. One end of the first stabilizing rod is fixedly connected to one end of the pin, and a through-type placement groove is opened at one end of the first stabilizing rod. An inner groove is formed on the inner wall of the circular hole, and a through-type sliding groove is formed on one side of the inner groove. A second stabilizing rod is slidably connected in the sliding groove, and a second placement groove is opened at one end of the second stabilizing rod. A pull rope is fixedly connected between the inner wall of the second placement groove and the inner wall of the first placement groove.

[0009] Preferably, a conical groove is formed at the opening of the slide groove, and a threaded groove is formed between the slide groove and the conical groove. A threaded block is rotatably connected to the end of the second stabilizing rod away from the second placement groove. The threaded block is threadedly connected to the threaded groove, and a pull ring is fixedly connected to one side of the threaded block. The pull ring is located in the conical groove.

[0010] Preferably, a fixing block is fixedly connected to both sides of the device body, and two fixing holes are opened on one side of the fixing block.

[0011] Preferably, the connecting rod has an I-shaped cross-section, and the groove has a convex-shaped cavity cross-section.

[0012] Preferably, both ends of the connecting rod are provided with elastic buffer pads.

[0013] This utility model provides a modularly assembled electronic circuit breaker, which has the following beneficial effects: 1. This modular electronic circuit breaker, through the design of connecting rods and cable trays, enables quick connection without the need for additional connectors, greatly simplifying the installation process and improving the installation efficiency of modularly assembling multiple electronic circuit breakers.

[0014] 2. This modularly assembled electronic circuit breaker utilizes a convex rod design that adapts to the cable tray, ensuring connection stability. Limiting components further restrict the sliding of the connecting rod, enhancing the stability of multiple interconnected electronic circuit breakers.

[0015] 3. The modularly assembled electronic circuit breaker, through the use of a limiting plate, improves the stability of the electronic circuit breaker assembly. Although the plastic housing used in traditional electronic circuit breakers is low in cost, its assembly stability is reduced due to the material strength. Using high-strength materials directly increases the cost. Therefore, by optimizing the design of the limiting plate and reducing the amount of material used, costs can be controlled. The processing cost of the engineering plastic housing is low, and it can be mass-produced through injection molding, further reducing the unit cost. This material combination design simplifies the assembly process and improves assembly efficiency, thereby improving assembly stability while reducing assembly costs.

[0016] 4. This modularly assembled electronic circuit breaker, through the setting of the limit plate, can be applied to circuit breakers of various specifications, has good versatility and adaptability, and can meet the needs of different users. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the entire utility model; Figure 3 This is a three-dimensional cross-sectional view of the main body of the device of this utility model; Figure 4 This is a three-dimensional schematic diagram of the connecting rod of this utility model; Figure 5 This is a three-dimensional schematic diagram of the fit between the limiting plate and the connecting rod of this utility model; Figure 6 This is a three-dimensional schematic diagram of the cooperation between stabilizer bar one and stabilizer bar two of this utility model.

[0018] [Explanation of Key Component Symbols] 1. Device body; 2. Cable groove; 3. Connecting rod; 4. Limiting assembly; 401. Pin rod; 402. Pin groove; 5. Limiting plate; 6. Connecting rod; 7. Hidden groove; 8. Threaded rod; 9. Limiting groove; 10. Connecting groove; 11. Slot; 12. Inner groove; 13. Slide groove; 14. Stabilizing rod one; 15. Stabilizing rod two; 16. Threaded block; 17. Pull ring; 18. Fixing block; 19. Pull rope. Detailed Implementation

[0019] This utility model embodiment provides a modularly assembled electronic circuit breaker.

[0020] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 It includes at least two device bodies 1. Two limiting plates 5 are provided on both sides of the device body 1. A wire groove 2 is opened on one side of the limiting plate 5. A connecting rod 3 is inserted into the wire groove 2. The connecting rod 3 includes two convex rods that are mirror-symmetrical to each other and fixedly connected to each other. The convex rods are adapted to the wire groove 2. A limiting component 4 is provided on the device body 1 to restrict the sliding of the convex rods inside the wire groove 2. Specifically, the device body 1 is an electronic circuit breaker. Since electronic circuit breakers are existing publicly available devices, their specific forms, models, usage methods, and installation methods are all existing technical means, and this application will not elaborate on them. The design standard of electronic circuit breakers mainly depends on their application scenarios and installation methods.

[0021] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 Two connecting rods 6 are fixedly connected to each of the two sets of limiting plates 5 facing each other. A hidden groove 7 is provided on one side of the limiting plate 5. A threaded hole is formed on the inner wall of the hidden groove 7, which passes through the end of the connecting rod 6. A threaded rod 8 is threadedly connected in the threaded hole. The nut at the end of the threaded rod 8 is located inside the hidden groove 7. A limiting groove 9 that is adapted to the limiting plate 5 is provided on the side of the device body 1 opposite to the limiting plate 5. A through connecting groove 10 is provided at the corresponding position of the limiting groove 9 relative to the connecting rod 6. The connecting rod 6 is adapted to the connecting groove 10. Specifically, the two sets of mating rods 6 are symmetrically arranged, but their threaded holes are not mirror symmetrical, but are arranged in the same direction; the purpose of this design is to ensure that the two mating rods 6 can be threaded onto the same threaded rod 8 at the same time when they rotate in the same direction; through the unidirectional rotational movement of the threaded rod 8, threaded connection with the two sets of mating rods 6 can be achieved simultaneously. Specifically, the limiting plate 5, connecting rod 3, and docking rod 6 are all made of high-strength aluminum alloy and other metal materials, while the electronic circuit breaker housing is generally made of engineering plastics and other materials. The high-strength aluminum alloy components ensure the mechanical strength and stability of key components and reduce loosening caused by external forces or vibrations. The engineering plastic housing has significant advantages in terms of insulation performance and cost-effectiveness. Through reasonable design, its stability and safety under normal use conditions can be ensured. Although high-strength aluminum alloy materials are more expensive, costs can be controlled by optimizing the design and reducing the amount of material used. The processing cost of the engineering plastic housing is low, and it can be mass-produced through injection molding, further reducing the unit cost. This material combination design simplifies the assembly process and improves assembly efficiency, thereby improving assembly stability while reducing assembly costs.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The limiting component 4 includes a pin 401, a pin groove 402 is formed on the inner wall of the hidden groove 7, the pin 401 is slidably disposed inside the pin groove 402, and a spring is provided between one end of the pin 401 and the end of the pin groove 402. The limiting plate 5 has a through hole at the corresponding position of the pin groove 402, and a slot 11 is provided at one end of the convex rod relative to the pin groove 402.

[0023] Please see Figure 2 and Figure 6 A circular hole is formed on one side of the inner wall of the pin groove 402. A stabilizing rod 14 is slidably connected in the circular hole. One end of the stabilizing rod 14 is fixedly connected to one end of the pin 401. A through-type placement groove 1 is opened at one end of the stabilizing rod 14. An inner groove 12 is formed on the inner wall of the circular hole. A through-type sliding groove 13 is formed on one side of the inner groove 12. A stabilizing rod 25 is slidably connected in the sliding groove 13. A placement groove 2 is opened at one end of the stabilizing rod 2. A pull rope 19 is fixedly connected between the inner wall of the placement groove 2 and the inner wall of the placement groove 1. Specifically, the pull rope 19 needs to be reserved to allow a certain length of time. After the second stabilizer 15 is pulled to slide and completely offset from the first stabilizer 14, the second stabilizer 15 will just tighten the pull rope 19. At this time, the pull rope 19 is used to pull the pin 401 to move together with the second stabilizer 15. This will allow the pin 401 to slide completely into the pin groove 402. The placement grooves 1 and 2 are set to prevent the pull rope 19 from blocking the movement of the second stabilizer 15 or the first stabilizer 14.

[0024] Please see Figure 1 , Figure 2 and Figure 6 A conical groove is formed at the opening of the slide groove 13, and a threaded groove is formed between the slide groove 13 and the conical groove. A threaded block 16 is rotatably connected to the end of the stabilizer rod 15 away from the placement groove 2. The threaded block 16 is threadedly connected to the threaded groove, and a pull ring 17 is fixedly connected to one side of the threaded block 16. The pull ring 17 is located in the conical groove. Specifically, the side wall of stabilizer bar 2 15 contacts and blocks the end of stabilizer bar 14 away from pin 401, and stabilizer bar 2 15 and stabilizer bar 14 are set perpendicular to each other. The cooperation between stabilizer bar 2 15 and stabilizer bar 14 can ensure that the connecting rod 3 remains stable during installation and use, and prevent loosening caused by external force or vibration. The threaded block 16 and the threaded groove are connected by threads, which can fix stabilizer bar 2 15 and keep stabilizer bar 2 15 in a specific position that prevents stabilizer bar 14 from sliding. The inner diameter of the threaded groove is larger than the inner diameter of the sliding groove 13.

[0025] Please see Figure 1 Both sides of the device body 1 are fixedly connected to fixing blocks 18, and two fixing holes are opened on one side of the fixing block 18.

[0026] Please see Figure 5 The cross-section of the connecting rod 3 is an I-shaped structure, and the cross-section of the groove 2 is a convex cavity; Specifically, the cross-section of the connecting rod 3 is an I-shaped structure, which is adapted to the convex cavity of the groove 2 to ensure that the connecting rod 3 remains stable during sliding.

[0027] Please see Figure 5 Both ends of the connecting rod 3 are equipped with elastic buffer pads; Specifically, during the installation of the connecting rod 3, the elastic buffer pad can effectively absorb the impact force generated during installation, reduce the impact of mechanical vibration on the connecting rod 3 and the device body 1, thereby improving the stability of the connection. Due to dimensional tolerances during the manufacturing process, there may be small gaps between the connecting rod 3 and the wire groove 2. The elastic buffer pad can compensate for these gaps, ensure a tight fit between the connecting rod 3 and the wire groove 2, and further improve the reliability of the connection. The elastic buffer pad can be made of materials such as rubber, polyurethane, and silicone.

[0028] Working principle: Before assembly: Install the limiting plate 5 into the upper limit groove 9 of the device body 1. At this time, the docking rod 6 on the limiting plate 5 is inserted into the docking groove 10. Then, threaded rod 8 is threaded from one set of docking rods 6 until the end of the threaded rod 8 is threadedly connected to the corresponding other set of docking rods 6, so that the two sets of limiting plates 5 are clamped and fixed on both sides of the device body 1 in a mirror symmetrical manner. During assembly, the two device bodies 1 are joined together and then the connecting rod 3 is inserted between the two device bodies 1. The convex rod on the connecting rod 3 will be inserted into the corresponding wire groove 2. During the insertion process, the pull ring 17 needs to be pulled to make the pin 401 slide completely into the pin groove 402, and at the same time the spring is squeezed until the connecting rod 3 is completely installed. Then the pull ring 17 is released, and the pin 401 is reset by the spring force, and the pin head of the pin 401 is inserted into the slot 11 on the connecting rod 3. To improve the stability of the connecting rod 3 during installation, the pull ring 17 is rotated and squeezed. The pull ring 17 will cause the threaded block 16 to be threaded into the threaded groove, while the second stabilizer 15 slides in the slide groove 13 and the end of the second stabilizer 15 is completely slid into the end of the first stabilizer 14 away from the pin 401. The second stabilizer 15 is used to block the sliding of the first stabilizer 14, thereby blocking and restricting the movement of the pin 401. The entire process only requires pulling the pull ring 17, inserting the connecting rod 3, releasing the pull ring 17 and turning it to complete the assembly of the two circuit breakers, greatly simplifying the installation process.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A modularly assembled electronic circuit breaker, comprising at least two device bodies (1), characterized in that: Two limiting plates (5) are provided on both sides of the device body (1). A wire groove (2) is opened on one side of the limiting plate (5). A connecting rod (3) is inserted into the wire groove (2). The connecting rod (3) includes two convex rods that are mirror-symmetrical and fixedly connected to each other. The convex rods are adapted to the wire groove (2). A limiting component (4) is provided on the device body (1) to restrict the sliding of the convex rods inside the wire groove (2).

2. The modularly assembled electronic circuit breaker according to claim 1, characterized in that: Two docking rods (6) are fixedly connected to each of the two sets of limiting plates (5) facing each other. A hidden groove (7) is provided on one side of the limiting plate (5). A threaded hole is formed on the inner wall of the hidden groove (7) through the end of the docking rod (6). A threaded rod (8) is threadedly connected in the threaded hole. The nut at the end of the threaded rod (8) is located inside the hidden groove (7). A limiting groove (9) adapted to the limiting plate (5) is provided on the side of the device body (1) relative to the limiting plate (5). A through docking groove (10) is provided at the corresponding position of the limiting groove (9) relative to the docking rod (6). The docking rod (6) is adapted to the docking groove (10).

3. The modularly assembled electronic circuit breaker according to claim 2, characterized in that: The limiting component (4) includes a pin (401), and a pin groove (402) is formed on the inner wall of the hidden groove (7). The pin (401) is slidably disposed inside the pin groove (402), and a spring is provided between one end of the pin (401) and the end of the pin groove (402). The limiting plate (5) has a through hole at the corresponding position of the pin groove (402), and a slot (11) is provided at one end of the convex rod relative to the pin groove (402).

4. The modularly assembled electronic circuit breaker according to claim 3, characterized in that: A circular hole is formed on one side of the inner wall of the pin groove (402), and a stabilizing rod (14) is slidably connected in the circular hole. One end of the stabilizing rod (14) is fixedly connected to one end of the pin (401), and a through-type placement groove is opened at one end of the stabilizing rod (14). An inner groove (12) is formed on the inner wall of the circular hole, and a through-type sliding groove (13) is formed on one side of the inner groove (12). A stabilizing rod (2) (15) is slidably connected in the sliding groove (13), and a placement groove (2) is opened at one end of the stabilizing rod (2). A pull rope (19) is fixedly connected between the inner wall of the placement groove (2) and the inner wall of the placement groove (1).

5. The modularly assembled electronic circuit breaker according to claim 4, characterized in that: The groove (13) has a conical groove at the opening and a threaded groove between the groove (13) and the conical groove. The end of the second stabilizing rod (15) away from the second placement groove is rotatably connected to a threaded block (16). The threaded block (16) is threadedly connected to the threaded groove, and a pull ring (17) is fixedly connected to one side of the threaded block (16). The pull ring (17) is located in the conical groove.

6. The modularly assembled electronic circuit breaker according to claim 1, characterized in that: The device body (1) is fixedly connected to two sides of a fixing block (18), and two fixing holes are opened on one side of the fixing block (18).

7. The modularly assembled electronic circuit breaker according to claim 1, characterized in that: The connecting rod (3) has an I-shaped cross-section, and the groove (2) has a convex cavity cross-section.

8. The modularly assembled electronic circuit breaker according to claim 1, characterized in that: Both ends of the connecting rod (3) are provided with elastic buffer pads.

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