Intelligent reclosing circuit breaker
By introducing a structure of conductive plates, heat-conducting blocks, and heat dissipation fins into the intelligent reclosing circuit breaker, the problem of false triggering caused by overheating of the wiring terminals is solved, and the stable operation and heat dissipation effect of the circuit breaker are achieved.
Patent Information
- Application Number
- CN202520118403.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-18
AI Technical Summary
Existing intelligent reclosing circuit breakers may accidentally trigger thermal protection tripping due to overheating of the wiring terminals during closing, failing to meet the automatic reclosing requirements of smart grids.
An intelligent reclosing circuit breaker was designed, which adopts a structure of conductive plate, heat-conducting block and heat dissipation fins. It achieves effective heat dissipation through heat conduction and air convection circulation, thereby reducing the temperature rise of the wiring terminals.
This effectively reduced the temperature of the wiring terminals, prevented accidental triggering of thermal protection tripping, and ensured the stable operation of the circuit breaker.
Smart Images
Figure CN223757473U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to low voltage circuit breaker technical field especially relates to a kind of intelligent reclosing circuit breaker. BACKGROUND
[0002] With the popularization of smart grid, the use of prepayment electric meter, an electric energy metering device, is also becoming more and more popular, and the traditional manually operated circuit breaker cannot meet the requirements of smart grid, therefore, the use of intelligent circuit breaker products is increasing, which can realize automatic reclosing operation, transmit a control signal, and realize remote control for automatic closing or opening, so that manual closing and opening operations are no longer needed, and manpower and resources are effectively saved.
[0003] When closing, the existing intelligent reclosing circuit breaker is rapidly heated due to long-time passing of large current through the terminal or rapid heating caused by increased contact resistance due to poor wiring, and high temperature can trigger the thermal protection of the intelligent reclosing circuit breaker and thus open the circuit, therefore, the applicant has made beneficial design and found a method to solve the above problems, and the technical solution to be introduced below is generated in this background. SUMMARY
[0004] The utility model discloses a product with heat dissipation effect and terminal temperature rise control to overcome the shortcomings of the traditional intelligent reclosing circuit breaker.
[0005] To solve the above problems, the utility model adopts the following technical scheme.
[0006] An intelligent reclosing circuit breaker comprises a body, a bottom plate fixed to the bottom of the body, a plurality of equally spaced conductive plates arranged at the two ends of the body, a protruding portion arranged on the back of each conductive plate, a plurality of grooves arranged on the protruding portion, a heat dissipation cavity arranged below the conductive plates, a heat conduction block arranged in the heat dissipation cavity, an insertion block arranged at one end of the heat conduction block and inserted into the grooves, a plurality of heat dissipation fins arranged at the other end of the heat conduction block, at least one heat dissipation hole arranged in front of the heat dissipation cavity, and at least one air inlet hole arranged at the bottom of the heat dissipation cavity.
[0007] Preferably, the conductive plates and the protruding portion are provided with mounting holes, and the mounting holes are provided with fastening screws.
[0008] Preferably, the protruding portion is provided with fixing holes on both sides and penetrating the grooves, and the fixing holes are provided with counterbores at both ends.
[0009] Preferably, one of the counterbores is provided with a bolt penetrating the fixing hole, and the end of the bolt is provided with a nut abutting against the other counterbore, so that the insertion block is connected and fixed with the grooves.
[0010] Preferably, the heat-conducting block is provided with a blind hole corresponding to the mounting hole.
[0011] Advantages:
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] The utility model discloses, through the heat conduction of the heat of the conductive plate to the heat-conducting block and the insert block, the insert block improves the contact area of the heat-conducting block and the conductive plate, improves the heat conduction efficiency, and the heat exchanges with the cold air in the heat dissipation cavity through the heat dissipation fin, the density of air becomes small after being heated and is discharged from the heat dissipation hole, and the cold air enters the heat dissipation cavity from the air inlet hole to fill the missing air, thereby forming air convection circulation, effectively reducing the temperature of the heat-conducting plate, avoiding the thermal protection of high-temperature false touch body and then breaking, and making the product have the advantages of heat dissipation effect and control terminal temperature rise. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a back structure schematic diagram of an intelligent reclosing circuit breaker of the utility model;
[0015] Figure 2 It is a partial section structure schematic diagram of an intelligent reclosing circuit breaker of the utility model;
[0016] Figure 3 It is a partial enlarged view A of an intelligent reclosing circuit breaker of the utility model; Figure 2
[0017] Figure 4 It is a side section structure schematic diagram of an intelligent reclosing circuit breaker of the utility model;
[0018] Figure 5 It is a partial enlarged view B of an intelligent reclosing circuit breaker of the utility model; Figure 4
[0019] Figure 6 It is an explosion view of an intelligent reclosing circuit breaker of the utility model;
[0020] The corresponding relationship between the various figure marks and the component names in the drawing is as follows:
[0021] Mark: 1, body; 2, bottom plate; 3, conductive plate; 4, heat-conducting block; 5, fastening screw; 6, bolt; 7, nut; 11, heat dissipation cavity; 12, heat dissipation hole; 21, air inlet hole; 31, protruding part; 32, recess; 33, mounting hole; 34, fixing hole; 35, counterbore; 43, blind hole; 41, insert block; 42, heat dissipation fin. DETAILED DESCRIPTION
[0022] The technical solutions of the utility model will be clearly and completely described below in combination with the embodiments, and obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0023] In the description of the utility model, it should be understood that the directions or position relations indicated by the terms "upper", "lower", "left", "right" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.
[0024] In the embodiments of the utility model, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.
[0025] Reference example Figures 1 to 6 A kind of intelligent reclosing circuit breaker, including body 1, and the bottom plate 2 of being fixed in the bottom of body 1, the both ends of body 1 are equipped with several equidistant conductive plate 3, the back of conductive plate 3 is equipped with protruding part 31, protruding part 31 is equipped with several grooves 32, body 1 is equipped with heat dissipation cavity 11, and is arranged below conductive plate 3, heat dissipation cavity 11 is equipped with heat conduction block 4, one end of heat conduction block 4 is equipped with plug block 41, and is inserted in groove 32, the other end of heat conduction block 4 is equipped with several heat dissipation fins 42, the front of heat dissipation cavity 11 is equipped with at least one heat dissipation hole 12, bottom plate 2 is equipped with at least one air inlet 21, and is arranged in the bottom of heat dissipation cavity 11, heat is conducted to heat conduction block 4 and plug block 41 by the heat generated by conductive plate 3, plug block 41 improves the contact area of heat conduction block 4 and conductive plate 3, improves the heat conduction efficiency, heat exchanges with the cold air in heat dissipation cavity 11 through heat dissipation fin 42, after air is heated, density becomes small and rises, and is discharged from heat dissipation hole 12, cold air enters heat dissipation cavity 11 from air inlet 21 to fill the missing air, to form air convection circulation, effectively reduce the temperature of heat conduction plate, avoid high temperature false contact body 1 and then open the heat protection and divide the gate;
[0026] It is worth mentioning that conductive plate 3, protruding part 31 is equipped with mounting hole 33, mounting hole 33 is equipped with fastening screw 5, fastening screw 5 makes soft connection line or copper bar fixed in conductive plate 3, realizes electric connection;
[0027] It is worth mentioning that the two sides of the convex part 31 are provided with fixing holes 34, and the fixing holes 34 penetrate the recess 32, the two ends of the fixing holes 34 are provided with counterbores 35, the counterbores 35 prevent the head of the bolt 6 and the nut 7 from protruding from the surface of the convex part 31, and the counterbores 35 play the role of avoiding the heat dissipation cavity 11 while ensuring the aesthetics;
[0028] It is worth mentioning that one of the counterbores 35 is provided with the bolt 6, the bolt 6 penetrates the fixing hole 34, the end of the bolt 6 is provided with the nut 7, and the nut 7 abuts against the other counterbores 35, so that the plug-in block 41 is connected and fixed with the recess 32, the plug-in block 41 is connected with the recess 32 tightly through the bolt 6 and the nut 7, the gap between the plug-in block 41 and the recess 32 is reduced, and the heat conduction efficiency is further improved;
[0029] It is worth mentioning that the heat conduction block 4 is provided with a blind hole 43 corresponding to the mounting hole 33.
[0030] The above design scheme can realize the advantages of heat dissipation effect and control of temperature rise of the wiring terminal.
[0031] The above content is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims of the utility model.
Claims
1. An intelligent reclosing circuit breaker, comprising a body (1), a bottom plate (2) fixed on the bottom of the body (1), and a plurality of equidistant conductive plates (3) arranged on both ends of the body (1), characterized in that: The back of the conductive plate (3) is provided with a protruding part (31), the protruding part (31) is provided with a plurality of grooves (32), the body (1) is provided with a heat dissipation cavity (11), and is arranged below the conductive plate (3), the heat dissipation cavity (11) is provided with a heat conduction block (4), one end of the heat conduction block (4) is provided with an insertion block (41) and is inserted into the groove (32), the other end of the heat conduction block (4) is provided with a plurality of heat dissipation fins (42), the front of the heat dissipation cavity (11) is provided with at least one heat dissipation hole (12), and the bottom plate (2) is provided with at least one air inlet hole (21) and is arranged at the bottom of the heat dissipation cavity (11).
2. The intelligent reclosing circuit breaker of claim 1, wherein: The conductive plate (3) and the protruding part (31) are provided with a mounting hole (33), and the mounting hole (33) is provided with a fastening screw (5).
3. The intelligent reclosing circuit breaker of claim 1, wherein: Both sides of the protruding part (31) are provided with a fixing hole (34) and penetrate the groove (32), and both ends of the fixing hole (34) are provided with a counterbore (35).
4. The intelligent reclosing circuit breaker of claim 3, wherein: One of the counterbores (35) is provided with a bolt (6) and penetrates the fixing hole (34), and the end of the bolt (6) is provided with a nut (7) and abuts against the other counterbore (35), so that the insertion block (41) is connected and fixed with the groove (32).
5. The intelligent reclosing circuit breaker of claim 2, wherein: The heat conduction block (4) is provided with a blind hole (43) corresponding to the mounting hole (33).