A compact modular molded case circuit breaker

Abstract

The utility model relates to the technical field of moulded case circuit breaker, concretely is a kind of compact modular moulded case circuit breaker, including fixed plate, the front side of fixed plate is equipped with first recess, the inside rotation of first recess is connected with stud bolt, two stud bolt sleeves that are adapted to stud bolt are provided on stud bolt, the side of two stud bolt sleeves is all fixedly connected with horizontal clamping plate, and the main body of moulded case circuit breaker is clamped between two horizontal clamping plates;The side of two horizontal clamping plates is all rotationally connected with array distribution's rotary plate, and the side of rotary plate is equipped with the second recess of through, the compact modular positioning mechanism of the utility model is formed by horizontal clamping plate, elastic stop and slide plate, can simultaneously clamp the left and right, up and down and front side of moulded case circuit breaker, realize multidirectional quick positioning and fixed, this design simplifies installation process, save time and labour, improve installation efficiency, and the cooperation of rubber pad and extension side plate further enhances the stability, ensures the reliability of modular installation.

Description

Technical Field

[0001] This utility model relates to the field of molded case circuit breaker technology, specifically a compact modular molded case circuit breaker. Background Technology

[0002] Molded case circuit breakers are protective electrical devices widely used in low-voltage power distribution systems. Their main function is to quickly and automatically cut off the power supply when a circuit experiences overload, short circuit, or undervoltage faults, thereby preventing the fault from escalating and protecting the safety of the circuit and electrical equipment.

[0003] In actual use, multiple molded case circuit breakers are usually fixed separately with screws. This installation method is cumbersome and makes it impossible to install molded case circuit breakers in a modular manner. It is time-consuming and labor-intensive, which in turn affects the installation efficiency of molded case circuit breakers. Utility Model Content

[0004] The purpose of this invention is to provide a compact, modular molded case circuit breaker to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A compact modular molded case circuit breaker includes a fixed plate. A first groove is formed on the front side of the fixed plate. A double-ended lead screw is rotatably connected inside the first groove. Two lead screw sleeves adapted to the double-ended lead screw are provided on the double-ended lead screw. A transverse clamp is fixedly connected to one side of each of the two lead screw sleeves. The molded case circuit breaker body is clamped between the two transverse clamps. An array of rotating plates is rotatably connected to one side of each of the two transverse clamps. A through second groove is formed on one side of each rotating plate. Two guide rods are fixedly connected inside the second groove. A sliding plate is slidably connected to the outer surface of the two guide rods. A rubber pad is fixedly connected to one side of each sliding plate. An extension side plate is fixedly connected to both ends of each sliding plate. A spring is fixedly connected between the sliding plate and the second groove. A limit rod is fixedly connected inside the first groove.

[0007] Preferably, a third groove is provided on one side of the transverse clamping plate, and an array of round rods are fixedly connected inside the third groove. Two symmetrically arranged stops are slidably connected to the outer surface of the round rods, and a spring is fixedly connected between the two stops. The upper side of the double-ended lead screw passes through the fixed plate and extends to the upper side of the fixed plate.

[0008] Preferably, mounting plates are fixedly connected to both ends of the fixing plate, and an array of heat dissipation grooves are provided on one side of the fixing plate.

[0009] Preferably, one side of the fixing plate has an array of heat dissipation slots, and heat dissipation fins are connected in an array inside the heat dissipation slots.

[0010] Preferably, two symmetrically arranged fourth grooves are provided on one side of the fixing plate, and a cooling fan is fixedly connected inside the two fourth grooves.

[0011] Preferably, the inner sliding surface of the lead screw sleeve is located on the outer surface of the limit rod, and a handwheel is fixedly connected to the upper side of the double-ended lead screw.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model uses a compact modular positioning mechanism composed of a transverse clamping plate, elastic blocks and a sliding plate to simultaneously clamp the left, right, top, bottom and front sides of the molded case circuit breaker, achieving multi-directional rapid positioning and fixing. This design simplifies the installation process, saves time and effort, and improves installation efficiency. At the same time, the cooperation of the rubber pad and the extended side plate further enhances the stability and ensures the reliability of modular installation.

[0014] 2. This utility model utilizes the heat-conducting structure of the heat dissipation circular groove, heat dissipation square groove, and heat dissipation fins, combined with the active heat dissipation of dual cooling fans, to quickly conduct and dissipate the heat generated by the molded case circuit breaker during operation, effectively reducing its temperature, so as to protect the molded case circuit breaker, extend its service life, and maintain stable operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a utility model Figure 1 Installation diagram of the middle stop block and spring 2;

[0018] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the sliding plate, spring 1, and rubber pad;

[0019] Figure 4 This is a utility model Figure 1 Installation diagram of the heat dissipation channel and heat sink;

[0020] The attached figures are labeled as follows:

[0021] 1. Fixing plate; 2. First groove; 3. Double-ended lead screw; 4. Lead screw sleeve; 5. Transverse clamping plate; 6. Molded case circuit breaker body; 7. Rotary plate; 8. Second groove; 9. Guide rod; 10. Slide plate; 11. Spring 1; 12. Rubber pad; 13. Extension side plate; 14. Limiting rod; 15. Handwheel; 16. Third groove; 17. Round rod; 18. Stop block; 19. Spring 2; 20. Mounting plate; 21. Heat dissipation round groove; 22. Heat dissipation square groove; 23. Heat sink; 24. Fourth groove; 25. Cooling fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown, a compact modular molded case circuit breaker includes a fixing plate 1. A first groove 2 is provided on the front side of the fixing plate 1. A double-ended lead screw 3 is rotatably connected inside the first groove 2. Two lead screw sleeves 4 adapted to the double-ended lead screw 3 are provided on the double-ended lead screw 3. A transverse clamping plate 5 is fixedly connected to one side of each of the two lead screw sleeves 4. A molded case circuit breaker body 6 is clamped between the two transverse clamping plates 5.

[0024] Two transverse clamps 5 are rotatably connected to one side of an array of rotating plates 7. A through second groove 8 is opened on one side of the rotating plate 7. Two guide rods 9 are fixedly connected inside the second groove 8. A slide plate 10 is slidably connected to the outer surface of the two guide rods 9. A rubber pad 12 is fixedly connected to one side of the slide plate 10. An extension side plate 13 is fixedly connected to both ends of the two slide plates 10. A spring 11 is fixedly connected between the slide plate 10 and the second groove 8. A limit rod 14 is fixedly connected inside the first groove 2.

[0025] A third groove 16 is provided on one side of the transverse clamping plate 5. An array of round rods 17 are fixedly connected inside the third groove 16. Two symmetrically arranged stops 18 are slidably connected to the outer surface of the round rods 17. A spring 19 is fixedly connected between the two stops 18. The upper side of the double-ended lead screw 3 passes through the fixed plate 1 and extends to the upper side of the fixed plate 1.

[0026] Mounting plates 20 are fixedly connected to both ends of the fixing plate 1, and an array of heat dissipation grooves 21 are provided on one side of the fixing plate 1.

[0027] One side of the fixed plate 1 has an array of heat dissipation slots 22, and heat dissipation fins 23 are connected in an array inside the heat dissipation slots 22.

[0028] Two symmetrically arranged fourth grooves 24 are provided on one side of the fixed plate 1. A cooling fan 25 is fixedly connected inside the two fourth grooves 24. The cooling fan 25 can reduce the temperature of the molded case circuit breaker, thus avoiding various adverse effects caused by high temperature, thereby protecting the entire compact modular molded case circuit breaker and enabling it to operate stably and safely.

[0029] The inner sliding of the lead screw sleeve 4 is placed on the outer surface of the limit rod 14. The limit rod 14 can limit the movement trajectory of the two lead screw sleeves 4, so that the two transverse clamps 5 can move back and forth smoothly to clamp the molded case circuit breaker. A handwheel 15 is fixedly connected to the upper side of the double-ended lead screw 3.

[0030] The working principle of the compact modular molded case circuit breaker provided by this utility model is as follows:

[0031] By placing all the molded case circuit breaker bodies 6 on the sides of the transverse clamping plate 5, the molded case circuit breaker bodies 6 can press against the two elastic stops 18, so that the two stops 18 can clamp the left and right ends of the molded case circuit breaker. Then, turn the handwheel 15, which will drive the double-ended lead screw 3 to rotate, allowing the two lead screw sleeves 4 on the double-ended lead screw 3 to move towards each other. In this way, the two lead screw sleeves 4 can drive the two transverse clamping plates 5 to clamp the upper and lower ends of the molded case circuit breaker bodies 6, for synchronous positioning of all the molded case circuit breakers. Then, the two sets of elastic sliding plates 10 can also be used to limit and fix them to the front of the molded case circuit breaker bodies 6, so as to further position the molded case circuit breakers. In this way, the transverse clamping plate 5, the stops 18 and the stops 18 can form a positioning mechanism. This positioning mechanism has the characteristics of compact modularity, which is conducive to convenient installation of all the molded case circuit breakers, saving time and effort, and improving the installation efficiency of the molded case circuit breakers.

[0032] By utilizing the rubber pad 12 at the slide plate 10, the friction between the slide plate 10 and the molded case circuit breaker body 6 can be increased, allowing the slide plate 10 to more stably limit the molded case circuit breaker. Subsequently, the two extended side plates 13 at the slide plate 10 will further increase the limiting range, making the modular installation of the molded case circuit breaker more stable. Then, the heat dissipation circular groove 21 and heat dissipation square groove 22 can be used to dissipate heat. At this time, the molded case circuit breaker will also be attached to the heat sink 23, so that the heat sink 23 can quickly conduct the heat generated by the molded case circuit breaker during operation. Then, with the use of two cooling fans 25, the heat is dissipated in time, reducing the heat of the molded case circuit breaker, so as to protect the entire compact modular molded case circuit breaker.

[0033] 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 claimed utility model.

Claims

1. A compact modular molded case circuit breaker, comprising a mounting plate (1), characterized in that, The front side of the fixed plate (1) is provided with a first groove (2), and a double-ended lead screw (3) is rotatably connected inside the first groove (2). Two lead screw sleeves (4) adapted to the double-ended lead screw (3) are provided on the double-ended lead screw (3). A transverse clamp (5) is fixedly connected to one side of each of the two lead screw sleeves (4). A molded case circuit breaker body (6) is snapped between the two transverse clamps (5). One side of each of the two transverse clamps (5) is rotatably connected to an array of rotating plates (7). One side of each rotating plate (7) has a through second groove (8). The inside of the second groove (8) is fixedly connected to two guide rods (9). The outer surfaces of the two guide rods (9) are slidably connected to a slide plate (10). One side of the slide plate (10) is fixedly connected to a rubber pad (12). Both ends of the two slide plates (10) are fixedly connected to an extension side plate (13). A spring (11) is fixedly connected between the slide plate (10) and the second groove (8). The inside of the first groove (2) is fixedly connected to a limit rod (14).

2. A compact modular molded case circuit breaker according to claim 1, characterized in that, A third groove (16) is provided on one side of the transverse clamp (5). An array of round rods (17) are fixedly connected inside the third groove (16). Two symmetrically arranged stops (18) are slidably connected to the outer surface of the round rods (17). A spring (19) is fixedly connected between the two stops (18). The upper side of the double-headed screw (3) passes through the fixed plate (1) and extends to the upper side of the fixed plate (1).

3. A compact modular molded case circuit breaker according to claim 1, characterized in that, The fixing plate (1) is fixedly connected to mounting plates (20) at both ends, and an array of heat dissipation grooves (21) are provided on one side of the fixing plate (1).

4. A compact modular molded case circuit breaker according to claim 1, characterized in that, The fixed plate (1) has an array of heat dissipation slots (22) on one side, and heat dissipation fins (23) are connected in an array inside the heat dissipation slots (22).

5. A compact modular molded case circuit breaker according to claim 1, characterized in that, The fixing plate (1) has two symmetrically arranged fourth grooves (24) on one side, and a cooling fan (25) is fixedly connected inside the two fourth grooves (24).

6. A compact modular molded case circuit breaker according to claim 2, characterized in that, The inside of the lead screw sleeve (4) is slidably placed on the outer surface of the limiting rod (14), and a handwheel (15) is fixedly connected to the upper side of the double-ended lead screw (3).

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