A residual current operated characteristic detection device for an earth leakage circuit breaker

Abstract

The utility model relates to electric leakage circuit breaker detection technical field, concretely is a kind of electric leakage circuit breaker residual current operation characteristic detection equipment, the utility model includes base, transmission device, distributing device, lifting device, distributing and closing handle device, test fixture device and tripping device are fixedly connected on the base, distributing device, distributing and closing handle device, test fixture device and tripping device are all located transmission device top, lifting device is located transmission device below, by with transmission device, distributing device, lifting device, distributing and closing handle device, test fixture device and tripping device integration in one, realize from product transmission, orientation, accurate positioning, automatic distribution and closing gate, power test, the full-process automation of tripping test, liberate the laborer from the complicated production procedure, greatly reduce manual intervention, single equipment can complete all test procedures, can guarantee the high accuracy of product test, high reliability, to strictly control quality.

Description

Technical Field

[0001] This utility model relates to the field of residual current circuit breaker detection, specifically a device for detecting the residual current operating characteristics of a residual current circuit breaker. Background Technology

[0002] The residual current circuit breaker (RCCB) operates under residual current conditions, which is a protective mechanism that automatically cuts off the power supply when leakage current or residual current exceeds a set value in the circuit. It is mainly used to prevent electric shock accidents and electrical fires. Currently, in the switchgear industry, residual current operating characteristic testing equipment is indispensable as a tool for testing the key technical performance indicators of RCCBs. Common testing equipment involves manually opening and closing the circuit breaker, clamping and placing the product, adjusting the required residual current magnitude and operating time, and observing and recording residual current operating characteristic data such as tripping time under different leakage current conditions.

[0003] In existing production technologies, manual inspection is still widely used. This method is not only labor-intensive and inefficient, but also has high production costs. In this production environment, it is easily affected by human factors, such as the skill level of the inspectors and observation errors, so the product quality is difficult to guarantee. Therefore, a residual current operating characteristic testing device for leakage circuit breakers is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the residual current operating characteristics of a leakage current circuit breaker, so as 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 residual current operating characteristic testing device for a leakage current circuit breaker includes a base, on which a transmission device, a dispensing device, a lifting device, an opening and closing handle device, a test fixture device, and a tripping device are fixedly connected. The dispensing device, the opening and closing handle device, the test fixture device, and the tripping device are all located above the transmission device, and the lifting device is located below the transmission device.

[0007] The transmission device is used to transport products, the material distribution device is used to distribute products, the lifting device is used to fix products for testing, the opening and closing handle device is used for automatic opening and closing of products, the test fixture device is used to connect the power supply circuit of the product to provide detection power, and the tripping device is used to test the test button or tripping button of the product.

[0008] Preferably, the transmission device includes a transmission mechanism one and a transmission mechanism two, with the transmission mechanism two located on one side of the transmission mechanism one, and the two ends of the transmission mechanism one passing through both ends of the base.

[0009] Preferably, the test fixture device includes a second bracket and a conductive rod. The second bracket is fixed to the base and mounted above the transmission device. The conductive rod is slidably mounted on the second bracket via a driving component.

[0010] Preferably, the split handle device includes a frame mounted on a transmission device. A slot is provided in the middle of the frame. Two sets of symmetrically arranged push cylinders are fixed on the frame. Rollers are rotatably mounted on the output ends of the two sets of push cylinders. The two sets of rollers are in a squeezing fit with the handle of the product.

[0011] The tripping device includes an electric slide table two, which is fixed to the frame. A tripping plate is installed at the moving end of the electric slide table two, and the end of the tripping plate is used for tripping test of the product.

[0012] Preferably, the lifting device includes an electric lifting mechanism and an upward pushing cylinder. Both the electric lifting mechanism and the upward pushing cylinder are fixedly connected to the machine base and are located below the slot and the test fixture device, respectively. The output end of the electric lifting mechanism is fixedly connected to a lifting plate, and the output end of the upward pushing cylinder is fixedly connected to a supporting shaft. Both the lifting plate and the supporting shaft are used to lift the product.

[0013] Preferably, the material dispensing device includes an electric slide table and a support frame. The electric slide table is fixedly connected to the machine base, and a push plate is fixedly connected to the output end of the electric slide table. A baffle is slidably installed on the support frame via a driving component, and the push plate is located between the baffle and the dispensing / closing handle device.

[0014] The beneficial effects of this utility model are:

[0015] This utility model integrates a transmission device, a material distribution device, a lifting device, a switching handle device, a test fixture device, and a tripping device into one unit, realizing full automation of the entire process from product transmission, guidance, precise positioning, automatic switching, power-on testing, and tripping test. It liberates workers from complicated production processes, greatly reduces manual intervention, and a single device can complete all testing processes, ensuring high precision and high reliability of product testing, thereby strictly controlling quality. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the side structure of the base of this utility model;

[0019] Figure 3 This is a left-side view of the internal structure of the base of this utility model;

[0020] Figure 4 This is a right-side view of the internal structure of the base of this utility model;

[0021] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure at point A;

[0022] Figure 6 This is a cross-sectional structural diagram of the device of this utility model;

[0023] Figure 7 yes Figure 6 Enlarged schematic diagram of the structure at point B;

[0024] Figure 8 This is a schematic diagram of the test fixture device of this utility model;

[0025] The attached figures are labeled as follows:

[0026] 1. Base; 2. Transmission Mechanism 1; 3. Transmission Mechanism 2; 4. Support 1; 5. Baffle; 6. Electric Slide 1; 7. Push Plate; 8. Electric Lifting Mechanism; 9. Lifting Plate; 10. Frame; 11. Push Cylinder; 12. Roller; 13. Groove; 14. Electric Slide 2; 15. Trigger Plate; 16. Upward Push Cylinder; 17. Support Shaft; 18. Support 2; 19. Conductive Rod. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] A device for testing the residual current operating characteristics of a residual current circuit breaker, such as Figures 1-8 As shown, the system includes a base 1, on which are fixed a transmission device, a dispensing device, a lifting device, a splitting handle device, a testing fixture device, and a tripping device. The dispensing device, splitting handle device, testing fixture device, and tripping device are all located above the transmission device, while the lifting device is located below the transmission device. The transmission device passes through the base 1 to form an assembly line. Products are placed on the transmission device and pass through the dispensing device, splitting handle device, tripping device, and testing fixture device in sequence.

[0029] The transmission device is used to transport products, the material distribution device is used to distribute products, the lifting device is used to fix products for testing, the opening and closing handle device is used for automatic opening and closing of products, the test fixture device is used to connect the power supply circuit of the product to provide detection power, and the tripping device is used to test the test button or tripping button of the product.

[0030] The entire equipment is controlled by a testing system, which uses a PLC as its core computing unit and is a current technology. Parameters are set and test data is stored through a touch screen. The constant current source output automatically adjusts the required test current to accurately simulate the residual operating current and detect and display the operating time and ultimate non-driving time of the residual current circuit breaker. The sorting device rejects defective products based on the test results.

[0031] The dedicated testing equipment developed for this model of residual current circuit breaker, with its feeding and testing mechanisms, utilizes automated mechanisms and testing technology to facilitate easy switching between various specifications and models (such as single-pole, multi-pole, and products with different current amperage). It eliminates the need for cumbersome manual operations, enabling rapid mass production, significantly reducing manufacturing costs, improving production efficiency and product quality, and providing data support for product quality improvement and performance optimization in terms of data management.

[0032] The transmission device includes a first transmission mechanism 2 and a second transmission mechanism 3. The second transmission mechanism 3 is located on one side of the first transmission mechanism 2. The two ends of the first transmission mechanism 2 pass through the two ends of the base 1 respectively and are used to transport the items for various tests. It can be a double chain or other conveying methods.

[0033] The test fixture device includes a second bracket 18 and a conductive rod 19. The second bracket 18 is fixed to the base 1 and is mounted above the transmission device. The conductive rod 19 is slidably mounted on the second bracket 18 via a driving component.

[0034] The test fixture device uses a drive component (one of an electric actuator, pneumatic cylinder, or hydraulic cylinder, such as domestic companies like Jiecang Drive and LINAK, or electric actuators from major automation suppliers like HIWIN and Delta) to control the conductive rod 19 to precisely align with the product terminals. The conductive rod 19 provides power to the product during testing and is connected to the power supply of the external testing system. The testing system controls the conductive rod 19, ensuring the reliability of the power circuit connection. This guarantees the accuracy and repeatability of the test current and action time data, effectively avoiding human error.

[0035] The opening and closing handle device includes a frame 10, which is mounted on a transmission device. A slot 13 is opened in the middle of the frame 10. Two sets of symmetrically arranged push cylinders 11 (Airtac SC standard cylinders or MI thin cylinders) are fixed on the frame 10. Rollers 12 are rotatably installed at the output end of both sets of push cylinders 11. Both sets of rollers 12 are pressed and engaged with the handle of the product. The automated assembly line operation is adopted, and the test is stable and far superior to manual operation. Through the cooperation of the push cylinders 11 and rollers 12 in the opening and closing handle device, the smooth and precise operation of the handle by human hand is simulated, ensuring the consistency of the closing state.

[0036] The tripping device includes an electric slide table 14, which is fixed to the frame 10. A tripping plate 15 is installed at the moving end of the electric slide table 14. The end of the tripping plate 15 is used for tripping test of the product. The tripping plate 15 can be controlled by the electric slide table 14 to automatically press the tripping button of the product, thereby verifying the mechanical tripping function of the product. This achieves multiple functions in one machine and comprehensively tests the product performance.

[0037] The lifting device includes an electric lifting mechanism 8 (either a cylinder or an electric push rod; if the driving component is a cylinder, the model can be CDQ2B50-50D) and an upward pushing cylinder 16. Both the electric lifting mechanism 8 and the upward pushing cylinder 16 are fixedly connected to the base 1 and are located below the slot 13 and the test fixture device, respectively. The output end of the electric lifting mechanism 8 is fixedly connected to a lifting plate 9, and the output end of the upward pushing cylinder 16 is fixedly connected to a supporting shaft 17. Both the lifting plate 9 and the supporting shaft 17 are used to lift the product.

[0038] During testing, the product passes under the frame 10 and the test fixture. When the product is just under the frame 10 or the test fixture, the lifting plate 9 and the supporting shaft 17 lift the product up, making it in close contact with the upper opening and closing handle or the test fixture. This eliminates the positioning error caused by the gap in the transmission mechanism, ensures the consistency and stability of the product position during each test, and improves the reliability of the test.

[0039] The material dispensing device includes an electric slide table 6 and a support 4. The electric slide table 6 is fixedly connected to the base 1. A push plate 7 is fixedly connected to the output end of the electric slide table 6. A baffle 5 is slidably installed on the support 4 through a driving component (either a cylinder or an electric push rod, the cylinder model is CJ2B16-50S, and the electric push rod model is PA10). The push plate 7 is located between the baffle 5 and the dispensing handle device.

[0040] The product is conveyed on the first 2 of the transmission mechanism. The drive component on the first 4 of the bracket drives the baffle 5 to descend. When the product moves to one end of the first 2 of the transmission mechanism, it is blocked by the baffle 5 and cannot move forward, thus separating the product. The moving end of the electric slide table 6 drives the push plate 7 to move, accurately separating the product to be tested and positioning it directly below the test structure. The push plate 7 can also push the product that accidentally passes under the baffle 5 onto the second 3 of the transmission mechanism, avoiding the product from being crowded and conveyed on the first 2 of the transmission mechanism.

[0041] The working principle of the residual current operating characteristic testing device for leakage current circuit breakers provided by this utility model is as follows:

[0042] During operation, when the product moves to the inspection station with the conveyor, the material distribution device starts working. The baffle 5 and push plate 7 distribute the product and adjust its position. The product moves with the conveyor to below the frame 10, where the lifting device activates. The electric lifting mechanism 8, located below the slot 13, drives the lifting plate 9 to rise, lifting the product from the conveyor mechanism 2 and placing it inside the slot 13. The handle opening / closing device then simulates manual operation. Two sets of symmetrically arranged push cylinders 11 on the frame 10 operate simultaneously, and the rollers 12 installed at their output ends press against both sides of the product's handle. Smoothly push the handle to close the circuit breaker. The electric slide 14 on the frame 10 starts, driving the trip plate 15 on its moving end to move forward. Press the trip button on the product precisely to verify the normality of the product's mechanical trip function. The frame 10 and the mechanism on the frame 10 are set with two sets. The product moves to the other set of the frame 10 and the operation is repeated. At this time, the handle is pushed by the roller 12 to open the circuit breaker. The electric slide 14 on the frame 10 starts, driving the trip plate 15 on its moving end to move forward. Press the trip button on the product precisely to verify the normality of the product's mechanical trip function.

[0043] The product is continuously conveyed to the support 18. The drive unit on the support 18 drives the conductive rod 19 to move downward, so that its end makes reliable contact with the power terminal on the product that has been supported and fixed, forming a power-on circuit. An external programmable test power supply applies a preset rated residual current to the product through the conductive rod 19. The detection circuit inside the detection equipment automatically records the product's tripping time and determines whether it is within the range specified by the standard. This equipment can replace manual operation at multiple workstations, significantly reducing labor and management costs. At the same time, it frees operators from repetitive, tedious, and potentially electrically hazardous labor, improves the working environment, and enhances the level of production safety.

[0044] 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 device for detecting the residual current operating characteristics of a residual current circuit breaker, characterized in that, Includes a base (1), on which a transmission device, a material distribution device, a lifting device, a split handle device, a test fixture device and a tripping device are fixedly connected. The material distribution device, the split handle device, the test fixture device and the tripping device are all located above the transmission device, and the lifting device is located below the transmission device. The transmission device is used to transport products, the material distribution device is used to distribute products, the lifting device is used to fix products for testing, the opening and closing handle device is used for automatic opening and closing of products, the test fixture device is used to connect the power supply circuit of the product to provide detection power, and the tripping device is used to test the test button or tripping button of the product.

2. The residual current operating characteristic testing device for a leakage current circuit breaker according to claim 1, characterized in that, The transmission device includes a first transmission mechanism (2) and a second transmission mechanism (3). The second transmission mechanism (3) is located on one side of the first transmission mechanism (2), and the two ends of the first transmission mechanism (2) pass through the two ends of the base (1).

3. The residual current operating characteristic testing device for a leakage current circuit breaker according to claim 1, characterized in that, The test fixture device includes a second bracket (18) and a conductive rod (19). The second bracket (18) is fixed to the base (1) and mounted above the transmission device. The conductive rod (19) is slidably mounted on the second bracket (18) through a driving component.

4. The residual current operating characteristic testing device for a leakage current circuit breaker according to claim 1, characterized in that, The split handle device includes a frame (10), which is mounted on a transmission device. A slot (13) is provided in the middle of the frame (10). Two sets of symmetrically arranged push cylinders (11) are fixed on the frame (10). Rollers (12) are rotatably installed at the output ends of the two sets of push cylinders (11). The two sets of rollers (12) are pressed and engaged with the handle of the product. The tripping device includes an electric slide table (14), which is fixed to the frame (10). The moving end of the electric slide table (14) is equipped with a tripping plate (15), and the end of the tripping plate (15) is used for tripping test of the product.

5. The residual current operating characteristic testing device for a leakage current circuit breaker according to claim 4, characterized in that, The lifting device includes an electric lifting mechanism (8) and an upward pushing cylinder (16). The electric lifting mechanism (8) and the upward pushing cylinder (16) are both fixed in the base (1) and located below the slot (13) and the test fixture device, respectively. The output end of the electric lifting mechanism (8) is fixed with a lifting plate (9), and the output end of the upward pushing cylinder (16) is fixed with a supporting shaft (17). The lifting plate (9) and the supporting shaft (17) are both used to lift the product.

6. The residual current operating characteristic testing device for a leakage current circuit breaker according to claim 1, characterized in that, The material dispensing device includes an electric slide table (6) and a support (4). The electric slide table (6) is fixedly connected to the base (1). A push plate (7) is fixedly connected to the output end of the electric slide table (6). A baffle (5) is slidably installed on the support (4) through a drive component. The push plate (7) is located between the baffle (5) and the dispensing handle device.

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