Quick test structure of plug-in relay

Abstract

The utility model discloses a plug-in type relay rapid test structure, comprising a housing, the top of the housing is provided with a socket, the top of the socket is clamped with a plug, the top of the plug is provided with a slot, and the bottom of the slot is provided with a conductive contact piece. The two limiting rods can move upwards or downwards, when the two limiting rods move upwards, the plug can be far away from the tops of the limiting rods, so that the plug can be conveniently and rapidly detached from the socket, and when the two limiting rods move downwards, under the self-locking performance of threaded connection of the socket and the circular ring, the plug can be conveniently and rapidly detached from the socket. According to the testing structure, the replaced plug can be fixed, the replaced plug can be fixed conveniently, so that plugs adaptive to relays of different models can be replaced, and the testing structure can test the relays of different models.

Description

Technical Field

[0001] This utility model relates to the field of relay testing technology, specifically a rapid testing structure for pluggable relays. Background Technology

[0002] A relay is an electrical control device widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment. During the production, maintenance and repair of relays, it is necessary to test their various performance parameters to ensure that they can work normally.

[0003] Because there are many types of relays, the number and position of pins on the bottom of different models of relays are different. Moreover, the sockets on the existing pluggable relay quick test structure are not convenient for quick replacement to adapt to different models of relays, resulting in low work efficiency.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing pluggable relay rapid testing structure. Utility Model Content

[0005] The purpose of this invention is to provide a rapid testing structure for pluggable relays to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pluggable relay quick test structure, including a housing, a socket on the top of the housing, a plug snapped into the top of the socket, a slot on the top of the plug, a conductive contact at the bottom of the slot, a relay above the plug, and pins at the bottom of the relay, with the pins and the slot being mutually compatible. The socket and the plug are fixed together by a fixing mechanism.

[0007] Preferably, the interior of the housing is provided with a coil resistance measurement module, a normally open contact measurement module, a normally closed contact measurement module and a control unit, the top of the housing is provided with a display unit, and the bottom of one side of the housing is provided with a power supply line.

[0008] Preferably, the fixing mechanism includes a ring, the outer side of the socket is threaded with a ring, a rubber strip is fixed to the outer wall of the ring, a limit rod is fixed to the top of the ring, and the lower surface of the top of the limit rod is in contact with the top of the plug.

[0009] Preferably, the rubber strips are distributed at equal angles about the central axis of the ring.

[0010] Preferably, the limiting rod is designed as an "L" shape, and there are two limiting rods symmetrically distributed about the central axis of the ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This plug-in relay quick test structure, through the rotation of the rubber strip ring, allows the two limiting rods to move upward or downward. When the two limiting rods move upward, the plug is moved away from the top of the limiting rod, thus facilitating the quick removal of the plug from the socket. When the two limiting rods move downward, the self-locking property of the threaded connection between the socket and the ring can fix the replaced plug, making it easy to fix the replaced plug. This allows for the replacement of plugs adapted to different models of relays, and thus enables this test structure to test different models of relays. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the middle plug structure;

[0014] Figure 3 This is a schematic diagram of the socket structure of this utility model;

[0015] Figure 4 This is a top view of the socket structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0017] Figure 6 This is a top view schematic diagram of the distribution structure of the rubber strip of this utility model.

[0018] In the diagram: 1. Housing; 2. Socket; 3. Plug; 4. Slot; 5. Conductive contact; 6. Relay; 7. Pin; 8. Ring; 9. Rubber strip; 10. Limiting rod; 11. Display unit; 12. Coil resistance measurement module; 13. Normally open contact measurement module; 14. Normally closed contact measurement module; 15. Control unit; 16. Power supply line. Detailed Implementation

[0019] 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 protection scope of the present utility model.

[0020] Please see Figure 1-6This utility model provides a technical solution: a plug-in relay quick test structure, including a housing 1, a socket 2 on the top of the housing 1, a plug 3 snapped into the top of the socket 2, and the socket 2 and plug 3 are electrically connected after snapping together, which is the same as the existing socket and plug structure. The plug 3 has a slot 4 on the top, a conductive contact 5 at the bottom of the slot 4, a relay 6 above the plug 3, and a pin 7 at the bottom of the relay 6, which is compatible with the slot 4. After the pin 7 at the bottom of the relay 6 is inserted into the slot 4, the pin 7 contacts the conductive contact 5, completing the electrical connection between the relay 6 and the plug 3. The socket 2 and the plug 3 are fixed together by a fixing mechanism.

[0021] The housing 1 houses a coil resistance measurement module 12, a normally open contact measurement module 13, a normally closed contact measurement module 14, and a control unit 15. A display unit 11 is mounted on the top of the housing 1. A power supply line 16 is connected to the bottom of one side of the housing 1, and the power supply line 16 connects to a socket 2. The socket 2 is electrically connected to the coil resistance measurement module 12, the normally open contact measurement module 13, the normally closed contact measurement module 14, and the control unit 15 via wires, providing power to these modules. The coil resistance measurement module 12 contains an automatic voltage regulation circuit, a first current measurement circuit, and a first voltage measurement circuit. The automatic voltage regulation circuit automatically adjusts the input voltage by detecting the on / off state of the relay. The first current measurement circuit and the first voltage measurement circuit accurately measure the current flowing through the relay coil and the voltage across the coil, respectively, and send the measurement data to the control unit 15 via a data transmission line. Its working principle is to calculate the coil resistance based on Ohm's law using the measured current and voltage values. The signal output terminals of the normally open contact measurement module 13 and the normally closed contact measurement module 14 are also connected to the control unit 15 via data transmission lines. When the relay is inserted into the socket 2 via plug 3, the normally open contact measurement module 13 and the normally closed contact measurement module 14 can directly measure the resistance values ​​of the normally open and normally closed contacts of the relay and transmit the measurement data to the control unit 15 in real time. The control unit 15, as the core of the entire test structure, can be a microprocessor or a single-chip microcomputer. It receives data from the coil resistance measurement module 12, normally open contact measurement module 13, and normally closed contact measurement module 14 via data transmission lines, and analyzes and processes this data. The control unit 15 has preset pass / fail standards for various parameters to determine whether the relay parameters are qualified. Simultaneously, the control unit 15 sends the processed test results and related information to the display unit 11 via control signal lines. The display unit 11 can be an LCD screen, connected to the control unit 15 via control signal lines, to visually display the relay's various test parameters and results, including operating voltage, return voltage, operating current, operating power, coil DC resistance, normally open contact closing resistance, and normally closed contact resistance, presenting the data clearly and concisely for easy viewing and judgment by operators. The above testing process is existing technology and will not be described in detail again.

[0022] The fixing mechanism includes a ring 8. The outer side of the socket 2 is threaded with a ring 8. A rubber strip 9 is fixed to the outer wall of the ring 8. A limit rod 10 is fixed to the top of the ring 8. The lower surface of the top of the limit rod 10 fits against the top of the plug 3. The limit rod 10 is designed with an "L" shape and there are two limit rods 10 symmetrically distributed about the central axis of the ring 8. Through the thread self-locking between the ring 8 and the socket 2, the positions of the two limit rods 10 can be fixed. Thus, the two limit rods 10 can fix the socket 2 and the plug 3, ensuring that the socket 2 and the plug 3 will not separate when the relay 6 is removed from the plug 3.

[0023] The rubber strips 9 are distributed at equal angles about the central axis of the ring 8, which increases the friction between the hand and the ring 8 and facilitates the rotation of the ring 8.

[0024] Working principle: When it is necessary to replace relays 6 of different models, the plug 3 needs to be replaced so that it can be adapted to the new relay 6. That is, the pin 7 at the bottom of the relay 6 can be inserted into the slot 4 on the plug 3, and the bottom of the pin 7 can contact the conductive contact 5 inside the slot 4, so that the relay 6 and the plug 3 are electrically connected. First, the ring 8 is rotated by the rubber strip 9. Since the ring 8 is threadedly connected to the socket 2, the ring 8 drives the two limit rods 10 to move upward at the same time, so that the plug 3 is untied. Then, the plug 3 is moved upward so that it is away from the socket 2, so that the plug 3 can be quickly removed. Next, the plug 3 adapted to the relay 6 to be tested is inserted into the top of the socket 2, so that the plug 3 and the socket 2 are electrically connected. Then, the ring 8 is rotated in the opposite direction so that the two limit rods 10 move downward, thus fixing the replaced plug 3. This allows the testing equipment to test relays 6 of different models.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pluggable relay rapid testing structure, comprising a housing (1), characterized in that: The top of the outer casing (1) is provided with a socket (2), the top of the socket (2) is fitted with a plug (3), the top of the plug (3) is provided with a slot (4), the bottom of the slot (4) is provided with a conductive contact (5), the top of the plug (3) is provided with a relay (6), the bottom of the relay (6) is provided with a pin (7), and the pin (7) is compatible with the slot (4). The socket (2) and the plug (3) are fixed together by a fixing mechanism.

2. The pluggable relay rapid test structure according to claim 1, characterized in that: The housing (1) is equipped with a coil resistance measurement module (12), a normally open contact measurement module (13), a normally closed contact measurement module (14) and a control unit (15). The top of the housing (1) is equipped with a display unit (11), and the bottom of one side of the housing (1) is equipped with a power supply line (16).

3. The pluggable relay rapid test structure according to claim 1, characterized in that: The fixing mechanism includes a ring (8), the outer side of the socket (2) is threaded with a ring (8), the outer wall of the ring (8) is fixed with a rubber strip (9), and the top of the ring (8) is fixed with a limiting rod (10), the lower surface of the top of the limiting rod (10) is in contact with the top of the plug (3).

4. The pluggable relay rapid test structure according to claim 3, characterized in that: The rubber strip (9) is distributed at equal angles about the central axis of the ring (8).

5. The pluggable relay rapid test structure according to claim 3, characterized in that: The limiting rod (10) is designed as an "L" shape, and there are two limiting rods (10) symmetrically distributed about the central axis of the ring (8).

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