Device for automatically detecting service life of relay before leaving factory

Abstract

The utility model relates to the technical field of relays, in particular to a device for automatically detecting the service life of a relay before delivery. The utility model provides a device for automatically detecting the service life of a relay before leaving a factory, which comprises a relay service life tester, detection pins, an electric push rod, a push plate and the like, and is characterized in that the relay service life tester is uniformly provided with placing grooves at intervals, and the placing grooves are connected with the detection pins in a bilateral symmetry manner; left and right sides of the relay life tester are provided with electric push rods, and telescopic ends of the two electric push rods are connected with a push plate. By arranging a plurality of placing grooves, a plurality of relays can be accommodated at the same time, and an electric push rod is utilized to drive a rack to move, so that a plurality of limiting rings rotate synchronously, all the relays are fixed at the same time, the relays can be effectively prevented from moving in the detection process, and the stability and accuracy of the test are ensured; and a test error caused by position offset is avoided.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, and in particular to an automatic detection device for the service life of relays before they leave the factory. Background Technology

[0002] A relay is an electronic component consisting of a coil and contacts. When a certain voltage or current is applied to the coil of a relay, the magnetic field generated by the coil causes the internal iron core to move, which in turn drives the connected mechanical arm (also known as an armature) to move, causing the contacts to close or open, thereby controlling another circuit.

[0003] Existing relay life testers typically can only test a single relay at a time. During operation, the relay needs to be inserted into the tester's pins. Since the relay is simply placed in a designated position without effective fixing measures during the testing process, the relay may shift during the test, thus affecting the accuracy of the test results.

[0004] To address the existing problems, there is a need for an automatic lifespan detection device for relays before they leave the factory, which can fix the relay's lifespan. Utility Model Content

[0005] To overcome the drawback of relays not having a fixed lifespan, this utility model provides an automatic lifespan detection device for relays before they leave the factory.

[0006] The technical solution of this utility model is: an automatic relay lifespan detection device before leaving the factory, including a relay lifespan tester and detection pins. The relay lifespan tester has evenly spaced placement slots, and detection pins are symmetrically connected to the placement slots on both sides. It also includes electric push rods, push plates, mounting plates, racks, mounting rods, limit rings, and gears. Electric push rods are installed on the left and right sides of the relay lifespan tester. The extension ends of the two electric push rods are connected to push plates. The push plates are slidably connected to the relay lifespan tester. Mounting plates are evenly spaced on the front side of the push plates. A rack is installed on the left side of the mounting plates. Mounting rods are evenly spaced on the relay lifespan tester. Limit rings are rotatably connected to the mounting rods. Gears are connected to the limit rings, and the gears mesh with the racks.

[0007] Furthermore, it also includes a mounting bracket, a temperature sensor, and a heat-conducting frame. The mounting bracket is installed on the placement slot, the temperature sensor is installed inside the mounting bracket, and the heat-conducting frame is connected to the rear side of the temperature sensor.

[0008] Furthermore, it also includes protective pads, with protective pads symmetrically connected to the front and rear of the limiting ring.

[0009] Furthermore, it also includes an alarm light; an alarm light is installed on the front side of the relay life tester.

[0010] Furthermore, it also includes a protective plate, which is connected to the placement groove.

[0011] Furthermore, the heat-conducting frame is rectangular.

[0012] The beneficial effects of this utility model are as follows: 1. By setting multiple placement slots, multiple relays can be accommodated at the same time. The electric push rod drives the rack to move, thereby causing multiple limit rings to rotate synchronously, so as to fix all relays at the same time. This can effectively prevent the relays from moving during the testing process, ensure the stability and accuracy of the test, and avoid test errors caused by position offset.

[0013] 2. The heat-conducting frame contacts the relay, which can quickly conduct heat when the relay heats up during the testing process due to quality issues. The built-in temperature sensor monitors temperature changes in real time. Once the temperature exceeds the preset threshold, the alarm will sound immediately. This allows for immediate alerts when a problem occurs with the relay, ensuring timely detection of potential faults and avoiding more serious consequences or testing errors due to delayed response. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an exploded view of the relay life tester and protective plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the electric push rod, push plate, and mounting plate of this utility model.

[0017] Figure 4 This is an exploded view of the mounting rod and limiting ring of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the mounting bracket, temperature sensor, and heat-conducting frame of this utility model.

[0019] In the attached diagram, the following labels are used: 1-Relay life tester, 2-Placement slot, 3-Detection pin, 4-Electric push rod, 401-Push plate, 5-Mounting plate, 6-Rack, 7-Mounting rod, 8-Limit ring, 9-Gear, 10-Mounting bracket, 11-Temperature sensor, 12-Heat conduction frame, 13-Protective pad, 14-Alarm light, 15-Protective plate. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Example: An automatic lifespan detection device for relays before they leave the factory, such as... Figures 1-5As shown, the device includes a relay life tester 1, detection pins 3, electric push rods 4, push plates 401, mounting plates 5, racks 6, mounting rods 7, limit rings 8, gears 9, mounting brackets 10, temperature sensors 11, heat-conducting frames 12, protective pads 13, alarm lights 14, and protective plates 15. The relay life tester 1 has evenly spaced placement slots 2 for placing relays. Detection pins 3 are symmetrically connected to each placement slot 2, allowing connection to and testing of the relays. Electric push rods 4 are mounted on the left and right sides of the relay life tester 1, pushing the push plates 401. The extension ends of the two electric push rods 4 are connected to the push plates 401, which are slidably connected to the relay life tester 1. Mounting plates 5 are evenly spaced on the front side of the push plates 401. A rack 6 is mounted on the left side of the mounting plates 5, driving the gears to rotate. The relay life tester... Mounting rods 7 are evenly spaced on instrument 1. Limiting rings 8 are rotatably connected to the mounting rods 7. Limiting rings 8 can fix the relay. Gears 9 are connected to the limiting rings 8. Gears 9 mesh with racks 6. Gears 9 can drive the limiting rings 8 to rotate. Mounting brackets 10 are installed on the placement slot 2. Temperature sensors 11 are installed in the mounting brackets 10. Temperature sensors 11 can detect the temperature of heat-conducting frames 12. Heat-conducting frames 12 are connected to the rear side of temperature sensors 11. Heat-conducting frames 12 are rectangular to increase the contact area with the relay. Protective pads 13 are symmetrically connected to the front and rear of the limiting rings 8. Protective pads 13 can protect the relay and prevent the limiting rings 8 from being damaged when fixing the relay. An alarm light 14 is installed on the front side of the relay life tester 1. The alarm light 14 can sound an alarm immediately when the relay has a problem. A protective plate 15 is connected in the placement slot 2. The protective plate 15 can protect the temperature sensors 11.

[0022] When this device is needed to perform life testing on relays, the operator places multiple relays into their respective designated slots 2, ensuring that each relay is correctly inserted into its test pin 3 and in contact with the heat-conducting frame 12. After all relays are in place, the operator activates the two electric push rods 4, causing their telescopic ends to retract. This retracts the push plate 401, mounting plate 5, and rack 6, causing the gear 9 to rotate. This, in turn, rotates the limiting ring 8 to the appropriate position, contacting and securing the relays in the slots 2. Once all relays are confirmed to be secure, the electric push rods 4 are closed to complete the fixing process. The relay life tester 1 is then activated, and the instrument will automatically... The system performs performance tests on each relay. If a relay overheats due to quality issues or other reasons, the heat will be conducted to the temperature sensor 11 through the heat conduction frame 12. Once the temperature exceeds the preset threshold, the alarm light 14 will illuminate, indicating to the operator that the relay is faulty. After all relays in the same batch have been tested, the two electric push rods 4 are activated again, this time extending them to push the plate 401, mounting plate 5, and rack 6 in opposite directions, causing the gear 9 to reverse. This causes the limit ring 8 to loosen from the relay. After the limit ring 8 resets, the electric push rods 4 are turned off, and all relays can then be safely removed, marking the end of the life testing work for this batch of relays.

[0023] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An automatic relay lifespan testing device before delivery, comprising a relay lifespan tester (1) and testing pins (3), wherein the relay lifespan tester (1) is provided with evenly spaced placement slots (2), and testing pins (3) are symmetrically connected to the front side of each placement slot (2), characterized in that, It also includes an electric push rod (4), a push plate (401), a mounting plate (5), a rack (6), a mounting rod (7), a limit ring (8), and a gear (9). Electric push rods (4) are installed on the upper left and right sides of the relay life tester (1). The push plate (401) is fixedly connected to the telescopic end of the two electric push rods (4). The push plate (401) is slidably connected to the relay life tester (1). The mounting plate (5) is fixedly connected to the front side of the push plate (401) at even intervals. The rack (6) is fixedly connected to the left side of the mounting plate (5). The mounting rod (7) is installed on the relay life tester (1) at even intervals. The limit ring (8) is rotatably connected to the mounting rod (7). The gear (9) is connected to the limit ring (8). The gear (9) meshes with the rack (6).

2. The automatic relay lifespan detection device before shipment as described in claim 1, characterized in that, It also includes a mounting bracket (10), a temperature sensor (11) and a heat-conducting frame (12). The mounting bracket (10) is fixedly connected to the front bottom of the placement slot (2). The temperature sensor (11) is installed in the mounting bracket (10). The heat-conducting frame (12) is fixedly connected to the rear side of the temperature sensor (11).

3. The automatic lifespan detection device for relays before they leave the factory as described in claim 2, characterized in that, It also includes protective pads (13), and protective pads (13) are symmetrically installed on the front and back of the limiting ring (8).

4. The automatic relay lifespan detection device before shipment as described in claim 3, characterized in that, It also includes alarm lights (14), and multiple alarm lights (14) are evenly spaced on the front side of the relay life tester (1).

5. The automatic relay lifespan detection device before shipment as described in claim 4, characterized in that, It also includes a protective plate (15), and the protective plate (15) is connected inside the placement groove (2).

6. The automatic relay lifespan detection device before shipment as described in claim 5, characterized in that, The heat-conducting frame (12) is rectangular.

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