Primary and secondary fusion complete column-mounted circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a primary and secondary fusion complete column-mounted circuit breaker which comprises a circuit breaker body and a control assembly, and the control assembly comprises a control box body and a galvanized steel plate installed on the inner wall of the control box body. According to the primary and secondary fusion complete column-mounted circuit breaker, the convex block and the guide rail are slidably clamped and matched in the connecting assembly, and the lock rod is automatically reset and locked through the telescopic spring, so that the quick assembly work of the control box body and the circuit breaker body is realized, and bolt tools and high-altitude complex operation are omitted; the galvanized steel sheet is embedded in the control box body, and the signal acquisition module, the communication module and the data processing unit are integrated, so that the signal transmission path is effectively shortened, the problem of electric signal attenuation caused by long cable transmission is solved, the precision is improved, and meanwhile, the galvanized steel sheet and the protective cover form auxiliary support of double-layer electromagnetic shielding and overlapped supporting plates; and the connection stability of equipment under vibration is ensured.

Description

Technical Field

[0001] This application relates to the field of circuit breaker technology, specifically to a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] The primary and secondary integrated pole-mounted circuit breaker equipment consists of two parts: the primary circuit and the secondary circuit. The primary circuit is formed by the interconnection of electrical equipment that directly participates in the generation, transmission, transformation, and use of electrical energy. The secondary circuit refers to the circuit formed by the interconnection of equipment that protects, measures, controls, and meters the primary circuit equipment according to certain logical relationships. It is widely used in the segmentation and connection functions of 10kV distribution network trunk lines.

[0003] An existing patent (publication number: CN213459543U) discloses a primary and secondary integrated pole-mounted circuit breaker. Addressing the problem that the height of the existing primary and secondary integrated pole-mounted circuit breaker cannot be adjusted after installation and connection to the external support frame, leading to complex operations when subsequent wiring adjustments are needed, the following solution is proposed: It includes a circuit breaker body and a mounting base. Connecting plates are fixedly installed on both sides of the circuit breaker body, and mounting ears are fixedly installed on both sides of the mounting base. Fixing plates are fixedly installed on both sides of the top of the mounting base. Sliding grooves are formed on the sides of the two fixing plates that are close to each other, and the two connecting plates are slidably connected to the corresponding sliding grooves. This utility model facilitates the installation of the pole-mounted circuit breaker and allows for easy height adjustment and fixation after installation, simplifying operation and facilitating wiring and other operations.

[0004] In the aforementioned comparative documents, after acquiring signals such as current, voltage, grounding current, and zero-sequence current from the pole-mounted circuit breaker, they need to be transmitted via long cables. After the signals are transmitted to the control box, they are processed and adjusted by the control box. In a high-voltage environment, long-distance transmission will cause the electrical signals to attenuate, affecting the accuracy of the data. In order to solve the above problems, a primary and secondary integrated pole-mounted circuit breaker is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a primary and secondary integrated pole-mounted circuit breaker, which directly connects the control box to the pole-mounted circuit breaker, eliminating the cost of cable laying and the impact on signal transmission, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body and a control assembly, wherein the control assembly comprises a control box body and a galvanized steel plate installed on the inner wall of the control box body, wherein a data processing unit, a signal acquisition module and a communication module are installed inside the control box body, wherein the signal acquisition module and the communication module are electrically connected to the data processing unit, and a connection assembly is provided between the circuit breaker body and the control box body.

[0007] The connecting assembly includes two convex blocks fixedly connected to one side of the control box body. Each convex block has a limit hole on its inner wall. Two guide rails are fixedly connected to the back of the circuit breaker body. The two convex blocks are respectively engaged with the inner walls of the two guide rails. Each guide rail has a movable locking rod sleeved on its inner wall. A circular piece is fixedly connected to the side of the two locking rods that are far apart from each other. A telescopic spring is fixedly connected to the side of the two circular pieces that are close to each other.

[0008] The above solution utilizes a sliding engagement between a convex block and a guide rail, combined with a locking rod that automatically resets and locks via a telescopic spring. This enables rapid assembly of the control box and circuit breaker, eliminating the need for bolts, tools, and complex high-altitude operations. By embedding a galvanized steel plate within the control box and integrating a signal acquisition module, communication module, and data processing unit, the signal transmission path is effectively shortened, resolving the signal attenuation issue caused by long cable transmission and improving accuracy. Simultaneously, the galvanized steel plate and protective cover form a double-layer electromagnetic shield, enhancing the anti-interference performance of the control components and making it more practical.

[0009] Furthermore, folding handles are installed on both sides of the outer surface of the circuit breaker body, and a protective cover is fitted on the outer surface of each folding handle.

[0010] The above solution allows for convenient handling of the circuit breaker body via a folding handle.

[0011] Furthermore, positioning plates are fixedly connected to both sides of the bottom end of the circuit breaker body, and positioning holes are opened at both ends of each positioning plate.

[0012] The above scheme allows for easy positioning and installation of the circuit breaker body in a suitable location using the positioning plate.

[0013] Furthermore, a protective cover is installed on the upper surface of the control box body, and a handle is fixedly connected to the upper surface of the protective cover.

[0014] The above solution provides a certain degree of protection for the components inside the control box by using a protective cover, making it more practical.

[0015] Furthermore, a support plate is fixedly connected to the back of the circuit breaker body, and the bottom surface of the control box body is in contact with the upper surface of the support plate.

[0016] The above solution provides auxiliary support for the control box body through the set support plate, enabling the control box body to be installed more stably on the circuit breaker body.

[0017] Furthermore, an extension piece is fixedly connected to the outer surface of each of the circular pieces.

[0018] The above solution increases the contact area of ​​the disc surface by adding an extension piece, making it easier to move the disc.

[0019] Furthermore, the diameter of the locking rod is the same as the inner diameter of the limiting hole.

[0020] The above scheme defines the dimensional relationship between the limiting hole and the locking rod, allowing the locking rod to be inserted into the limiting hole, thereby limiting the convex block inside the guide rail.

[0021] Furthermore, the two telescopic springs are respectively sleeved on the outside of the two locking rods, and the ends of the two telescopic springs that are close to each other are respectively fixedly connected to the outer surfaces of the two guide rails.

[0022] The above scheme defines the positional relationship of the telescopic springs. When the disc is pulled, the locking rod will move, and the telescopic spring will be in a stretched state. When the telescopic spring is stretched, it will generate elastic force. At this time, releasing the pulled disc can be used to reset the spring by the elastic force generated by the deformation of the telescopic spring.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This type of integrated primary and secondary pole-mounted circuit breaker uses a sliding snap-fit ​​connection between a convex block and a guide rail in its connecting components. Combined with a locking rod that automatically resets and locks via a telescopic spring, it enables rapid assembly of the control box and the circuit breaker body, eliminating the need for bolts, tools, and complex high-altitude operations. By embedding a galvanized steel plate and integrating a signal acquisition module, communication module, and data processing unit within the control box, it effectively shortens the signal transmission path, solves the problem of electrical signal attenuation caused by long cable transmission, and improves accuracy. At the same time, the galvanized steel plate and protective cover form a double layer of electromagnetic shielding, and the additional support of the superimposed support plate ensures the stability of the equipment connection under vibration, making it more practical. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the overall side view of the structure of this application;

[0027] Figure 3 This is a schematic diagram of the internal structure of the control box in this application.

[0028] Figure 4 This is a partial rear view structural diagram of the structure of this application;

[0029] Figure 5 For the structure of this application Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0030] In the picture:

[0031] 1. Circuit breaker body; 2. Folding handle; 3. Positioning plate; 4. Control components; 401. Control box body; 402. Protective cover; 403. Galvanized steel plate; 404. Data processing unit; 405. Signal acquisition module; 406. Communication module; 5. Connection components; 501. Convex block; 502. Limiting hole; 503. Guide rail; 504. Support plate; 505. Locking rod; 506. Circular piece; 507. Telescopic spring; 508. Extension piece. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a primary and secondary integrated pole-mounted circuit breaker includes a circuit breaker body 1 and a control assembly 4. Folding handles 2 are installed on both sides of the outer surface of the circuit breaker body 1. Each folding handle 2 is covered with a protective sleeve on its outer surface. The folding handles 2 facilitate the handling of the circuit breaker body 1. Positioning plates 3 are fixedly connected to both sides of the bottom end of the circuit breaker body 1. Positioning holes are opened at both ends of each positioning plate 3. The positioning plates 3 facilitate the positioning and installation of the circuit breaker body 1 in a suitable position.

[0034] Please see Figure 1 , Figure 2 and Figure 3The control component 4 includes a control box body 401 and a galvanized steel plate 403 installed on the inner wall of the control box body 401. The control box body 401 houses a data processing unit 404, a signal acquisition module 405, and a communication module 406. The signal acquisition module 405 and the communication module 406 are electrically connected to the data processing unit 404. A protective cover 402 is installed on the upper surface of the control box body 401, and a handle is fixedly connected to the upper surface of the protective cover 402. The protective cover 402 provides a certain degree of protection for the components inside the control box body 401, making it more practical. Both the control box body 401 and the protective cover 402 meet the IP67 protection level. The galvanized steel plate 403 and the protective cover 402 together form a double-layer electromagnetic shield, thereby improving the anti-interference performance of the control component 4.

[0035] Please see Figure 3 , Figure 4 and Figure 5 A connecting assembly 5 is provided between the circuit breaker body 1 and the control box body 401. The connecting assembly 5 includes two convex blocks 501 fixedly connected to one side of the control box body 401. Each convex block 501 has a limit hole 502 on its inner wall. Two guide rails 503 are fixedly connected to the back of the circuit breaker body 1. The two convex blocks 501 are respectively engaged with the inner walls of the two guide rails 503. A movable locking rod 505 is sleeved on the inner wall of each guide rail 503. The diameter of the locking rod 505 is the same as the inner diameter of the limit hole 502, which defines the dimensional relationship between the limit hole 502 and the locking rod 505, allowing the locking rod 505 to be inserted into the limit hole 502, thereby limiting the convex block 501 inside the guide rail 503. Circular plates 506 are fixedly connected to the sides of the two locking rods 505 that are far apart from each other. Two telescopic springs 507 are fixedly connected to the sides of the two lock rods 505 respectively. The ends of the two telescopic springs 507 that are close to each other are fixedly connected to the outer surfaces of the two guide rails 503, which defines the positional relationship of the telescopic springs 507. When the disc 506 is pulled, the lock rod 505 will move, and the telescopic spring 507 will be in a stretched state. When the telescopic spring 507 is stretched, it will generate elastic force. When the disc 506 is released, it can be reset by the elastic force generated by the deformation of the telescopic spring 507. Therefore, the connection component 5 can realize the rapid assembly effect between the circuit breaker body 1 and the control component 4, so that the control component 4 can be stably integrated on the circuit breaker body 1, eliminating the cost of cable laying and the impact on signal transmission.

[0036] Please see Figure 1 , Figure 2 and Figure 5A support plate 504 is fixedly connected to the back of the circuit breaker body 1. The bottom surface of the control box body 401 is in contact with the upper surface of the support plate 504. The support plate 504 can provide auxiliary support for the control box body 401, so that the control box body 401 can be installed more stably on the circuit breaker body 1. An extension piece 508 is fixedly connected to the outer surface of each disc 506. The extension piece 508 can increase the contact area of ​​the disc 506 surface, so that the disc 506 can be moved more conveniently.

[0037] In this embodiment, a primary and secondary integrated pole-mounted circuit breaker uses a sliding engagement between a convex block 501 and a guide rail 503 in its connecting component 5. Combined with a locking rod 505 automatically reset and locked via a telescopic spring 507, this enables rapid assembly of the control box body 401 and the circuit breaker body 1, eliminating the need for bolts, tools, and complex high-altitude operations. By embedding a galvanized steel plate 403 and integrating a signal acquisition module 405, a communication module 406, and a data processing unit 404 within the control box body 401, the signal transmission path is effectively shortened, solving the problem of electrical signal attenuation caused by long cable transmission and improving accuracy. Simultaneously, the galvanized steel plate 403 and the protective cover 402 form a double-layer electromagnetic shield, improving the device's anti-interference performance. The additional support of the support plate 504 ensures the stability of the equipment connection under vibration, making it more practical.

[0038] The working principle of the above embodiment is as follows: The circuit breaker body 1 serves as the core of the primary circuit, performing current switching and fault isolation functions. The control component 4 is assembled on the back of the circuit breaker body 1. Its signal acquisition module 405 is directly connected to the primary side sensor, such as a current transformer, via a short cable to acquire current, voltage, and grounding signals in real time, and transmits them to the data processing unit 404 for filtering, amplification, and logical judgment. After processing, the data is uploaded to the main station system by the communication module 406 via wireless / fiber optic. The control box body 401 uses galvanized steel plate 403 as an electromagnetic shielding layer, combined with the IP67 sealing structure of the protective cover 402, to resist strong outdoor electromagnetic interference and rainwater erosion. The connecting component 5 slides between the guide rail 503 and the convex block 501. When the control box body 401 is pushed into the preset locking position, the locking rod 505 is inserted into the limiting hole 502 under the action of the telescopic spring 507 to complete the mechanical locking. The support plate 504 provides bottom support to distribute the load and ensure connection stability under strong vibration. During operation and maintenance, the circular piece 506 is pulled by the extension plate 508, and the telescopic spring 507 is stretched to remove the locking rod 505 from the guide rail 503. The control box body 401 can then be disassembled by hand for maintenance or replacement. The standardized mounting holes of the positioning plate 3 are compatible with various pole and tower structures, simplifying on-site deployment. The entire set of equipment, through deep integration design of primary and secondary components, achieves high-precision signal processing, low-cost operation and maintenance, and adaptability to complex environments through short-distance transmission, quick disassembly and assembly, and multiple protection mechanisms, meeting core practical needs.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body (1) and a control assembly (4), characterized in that: The control component (4) includes a control box body (401) and a galvanized steel plate (403) installed on the inner wall of the control box body (401). The control box body (401) is equipped with a data processing unit (404), a signal acquisition module (405) and a communication module (406). The signal acquisition module (405) and the communication module (406) are electrically connected to the data processing unit (404). A connection component (5) is provided between the circuit breaker body (1) and the control box body (401). The connecting assembly (5) includes two convex blocks (501) fixedly connected to one side of the control box body (401). Each convex block (501) has a limit hole (502) on its inner wall. Two guide rails (503) are fixedly connected to the back of the circuit breaker body (1). The two convex blocks (501) are respectively snapped into the inner walls of the two guide rails (503). Each guide rail (503) has a movable locking rod (505) sleeved on its inner wall. A circular piece (506) is fixedly connected to the side of the two locking rods (505) that are far apart from each other. A telescopic spring (507) is fixedly connected to the side of the two circular pieces (506) that are close to each other.

2. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: Folding handles (2) are installed on both sides of the outer surface of the circuit breaker body (1), and a protective cover is provided on the outer surface of each folding handle (2).

3. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: Positioning plates (3) are fixedly connected to both sides of the bottom end of the circuit breaker body (1), and positioning holes are opened at both ends of each positioning plate (3).

4. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: A protective cover (402) is installed on the upper surface of the control box body (401), and a handle is fixedly connected to the upper surface of the protective cover (402).

5. A primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: A tray (504) is fixedly connected to the back of the circuit breaker body (1), and the bottom surface of the control box body (401) is in contact with the upper surface of the tray (504).

6. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: An extension piece (508) is fixedly connected to the outer surface of each of the discs (506).

7. A primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The diameter of the locking rod (505) is the same as the inner diameter of the limiting hole (502).

8. A primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The two telescopic springs (507) are respectively sleeved on the outside of the two locking rods (505), and the ends of the two telescopic springs (507) that are close to each other are respectively fixedly connected to the outer surfaces of the two guide rails (503).

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