Relay detection device and detection method

Abstract

The invention relates to the field of relay detection, in particular to a relay detection device and method. Comprising an insulating column, a middle rod is fixed in the middle of the insulating column, a slot is formed in the left end of the middle rod, the slot is wide outside and narrow inside, sliding blocks are slidably connected to the upper end and the lower end of the insulating column, and a V-shaped plate is fixed to the left side of each sliding block. The method for detecting the relay by the relay detection device comprises the following steps: S1, inserting the middle rod into the binding post II through the slot; s2, two V-shaped plates are pressed on the two binding posts I respectively; s3, the door-shaped piece is fixed to the L-shaped plate; s4, the elastic plate is driven to bend upwards to be connected with the conductive plate on the upper side, and whether the lamp beads on the upper side are turned on or not is observed; and S5, the elastic plate is driven to bend downwards to be connected with the conductive plate on the lower side, and whether the lamp beads on the lower side are turned on or not is observed. The detection device can be conveniently connected to the binding post of the relay.

Description

Technical Field

[0001] This invention relates to the field of relay testing, and more specifically to a relay testing device and testing method. Background Technology

[0002] A relay is an electrical switching device that controls the switching state of a circuit through electromagnetic attraction and release. It consists of a coil, an iron core, and contacts. When the coil is energized, the generated magnetic field attracts the iron core, closing the contacts; when the coil is de-energized, the magnetic field disappears, the iron core returns to its original state, and the contacts open. Relays are widely used in automatic control systems to achieve functions such as remote circuit control, circuit protection, and signal conversion. To detect whether a relay is operating normally, a relay testing device is needed. However, the connection between existing relay testing devices and the relay's terminals is prone to disconnection, affecting the testing results. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a relay testing device and testing method, the advantage of which is that the testing device can be easily connected to the terminals of the relay.

[0004] A relay testing device includes an insulating column, a central rod fixed in the middle of the insulating column, a slot provided at the left end of the central rod, the slot being wider at the outside and narrower at the inside, sliders slidably connected to both the upper and lower ends of the insulating column, and a V-shaped plate fixed to the left side of each slider.

[0005] Both ends of the insulating column are fixed with baffles, and both ends of the insulating column are fitted with compression springs, which are located between the corresponding middle rod and the slider.

[0006] A method for detecting relays using a relay detection device includes the following steps:

[0007] S1: Insert the center rod into terminal two through the slot;

[0008] S2: Press the two V-shaped plates onto the two terminals one respectively;

[0009] S3: Fix the door-shaped piece to the L-shaped plate;

[0010] S4: Drive the elastic plate to bend upwards and connect with the upper conductive plate, then observe whether the upper LED lights up.

[0011] S5: Drive the elastic plate to bend downwards and connect with the conductive plate on the lower side. Observe whether the LED on the lower side lights up. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 A flowchart of a method for detecting relays using a relay detection device;

[0014] Figure 2 A schematic diagram of the relay detection device and the relay structure. Figure 1 ;

[0015] Figure 3 A schematic diagram of the relay detection device and the relay structure. Figure 2 ;

[0016] Figure 4 A schematic diagram of the relay detection device and the relay structure. Figure 3 ;

[0017] Figure 5 This is a schematic diagram of the L-shaped plate.

[0018] Figure 6 Schematic diagram of the support structure Figure 1 ;

[0019] Figure 7 Schematic diagram of the support structure Figure 2 ;

[0020] Figure 8 Schematic diagram of the structure of the insulating column and V-shaped plate Figure 1 ;

[0021] Figure 9 Schematic diagram of insulating column and V-shaped plate structure Figure 2 .

[0022] In the diagram: L-shaped plate 101; electromagnet 102; conductive plate 103; contact head one 104; elastic plate 105; mounting base 106; terminal one 107; terminal two 108; contact head two 109;

[0023] 201; Bracket 202; Stand plate 203; Tension spring 1 204; V-shaped component 205; Pressure column 206; Slide rod 207; Tension spring 2 208; Suction block 209;

[0024] Insulating post 301; baffle plate 302; power supply 303; connecting bracket 304; pressure screw 305; gate-shaped component 306; center rod 307; slot 308;

[0025] V-shaped plate 401; slider 402; LED bead 403; guide rod 404; flexible wire 405. Detailed Implementation

[0026] like Figure 8-9 As shown, this example allows for the convenient connection of a detection device to the relay's terminals.

[0027] The relay testing device includes an insulating post 301, with a central rod 307 bonded to its middle. A slot 308, wider at the outer edge and narrower at the inner edge, is located at the left end of the central rod 307. Slider blocks 402 are slidably connected to both ends of the insulating post 301, and a V-shaped plate 401 is welded to the left side of each slider 402. In use, the central rod 307 is inserted through the slot 308 into the second terminal 108, connecting the elastic plate 105 and the central rod 307. This drives the two sliders 402 to slide outwards, thereby pressing the two V-shaped plates 401 against the inner sides of the two first terminals 107. This allows the two V-shaped plates 401 to connect with the two conductive plates 103, facilitating the connection of the testing device to the relay terminals.

[0028] like Figure 8-9 As shown, this example can achieve the effect of stably connecting two V-shaped plates 401 to two terminals 107.

[0029] Because baffles 302 are bonded to both the upper and lower ends of the insulating post 301, and compression springs are sleeved on both the upper and lower ends of the insulating post 301, the compression springs are located between the corresponding middle rod 307 and the slider 402. The two compression springs respectively exert an outward sliding force on the two sliders 402, so that the two V-shaped plates 401 always tend to move away from each other, thereby making the two V-shaped plates 401 stably connected to the two terminals 107.

[0030] like Figure 8-9 As shown, this example can achieve the effect of detecting whether the working state of a relay is abnormal.

[0031] Because the right end of the central rod 307 is connected to a power supply 303 by a screw, and both the positive and negative terminals of the power supply 303 are connected to a flexible wire 405, and each slider 402 is connected to a guide rod 404 on its right side, and each guide rod 404 is connected in series with an LED bead 403, and the end of each flexible wire 405 is connected to the end of the corresponding guide rod 404, a series circuit is formed between the elastic plate 105, one of the conductive plates 103, the V-shaped plate 401, the slider 402, the LED bead 403, the guide rod 404, the flexible wire 405, the power supply 303 and the central rod 307. If there is no abnormality in the connection between the elastic plate 105 and the conductive plate 103 inside the relay, the series circuit will be connected, the LED bead 403 will light up, and thus the working state of the relay will be detected as abnormal.

[0032] like Figure 8-9 As shown, this example demonstrates how to fix the entire relay detection device onto the relay for convenient testing.

[0033] Since the lower end of the insulating column 301 is connected to the connecting bracket 304, and the lower left end of the connecting bracket 304 is welded with a gate-shaped component 306, and both the front and rear ends of the gate-shaped component 306 are threaded with pressure screws 305, the gate-shaped component 306 can be inserted into the L-shaped plate 101 on the relay, and then the elastic plate 105 can be rotated to fix the gate-shaped component 306 on the relay, thereby fixing the entire relay detection device on the relay for convenient testing.

[0034] like Figure 5 As shown, this example allows for easy connection between the elastic plate 105 and the conductive plate 103 on the upper or lower side.

[0035] The relay testing device is used to test a relay, which includes an L-shaped plate 101. A mounting base 106 is connected to the left side of the L-shaped plate 101 by screws. The right end of an elastic plate 105 passes through the mounting base 106 and is bonded to it. The right ends of two conductive plates 103 pass through the mounting base 106 and are bonded to it. The two conductive plates 103 are located on opposite sides of the elastic plate 105. A second terminal 108 is welded to the right end of the elastic plate 105. A first terminal 107 is fixed to the right end of each conductive plate 103. The upper and lower sides of the elastic plate 105 are also connected to the mounting base 106. Each conductive plate 103 is provided with a second contact head 109 and a first contact head 104. The two first contact heads 104 are respectively provided with two second contact heads 109. The second contact head 109 located on the lower side is in contact with the first contact head 104 located on the lower side. When the elastic plate 105 bends upward, the second contact head 109 on the upper side contacts the first contact head 104, and then the elastic plate 105 is connected to the upper conductive plate 103. When the elastic plate 105 bends downward, the second contact head 109 on the lower side contacts the first contact head 104, and then the elastic plate 105 is connected to the lower conductive plate 103.

[0036] like Figure 5-7 As shown, this example can achieve the effect of driving the elastic plate 105 to bend upward and connect with the conductive plate 103 located on the upper side.

[0037] Because the lower part of the L-shaped plate 101 is connected to the electromagnet 102 by screws, and the left part of the L-shaped plate 101 is connected to the bracket 201 by screws, the middle part of the V-shaped member 205 is hinged to the bracket 201, and the lower part of the V-shaped member 205 is bonded to the attraction block 209, which is located to the left of the electromagnet 102. The upper part of the V-shaped member 205 is located below the elastic plate 105. The second contact head 109 on the lower side and the first contact head 104 on the lower side are normally in contact. When it is necessary to drive the second contact head 109 on the upper side to contact the first contact head 104 on the upper side, the electromagnet 102 is energized. The electromagnet 102 attracts the attraction block 209 to the right, thereby driving the V-shaped member 205 to rotate counterclockwise. At this time, the V-shaped member 205 pushes the elastic plate 105 upward, driving the elastic plate 105 to bend upward and connect with the conductive plate 103 on the upper side.

[0038] like Figure 6-7 As shown, this example can achieve the effect of making the V-shaped part 205 always tend to rotate clockwise.

[0039] The left side of the L-shaped plate 101 is connected to the upright plate 203 by screws. A tension spring 204 is welded to the upper part of the upright plate 203. The right end of the tension spring 204 is welded to the left side of the V-shaped member 205. The middle part of the bracket 201 is connected to the stop block 202 by screws. The tension spring 204 provides a leftward pulling force to the V-shaped member 205, causing the V-shaped member 205 to always have a tendency to rotate clockwise. At this time, the V-shaped member 205 rests against the stop block 202 and does not contact the elastic plate 105. The elastic plate 105 then contacts the conductive plate 103 on the lower side.

[0040] like Figure 5-7 As shown, this example allows the flexible plate 105 to be easily connected to the conductive plate 103 located on the lower side under normal conditions.

[0041] Because a slide rod 207 is vertically slidably connected to the bracket 201, and a pressure column 206 is welded to the upper part of the slide rod 207, the pressure column 206 is located on the upper side of the elastic plate 105. The upper end of the tension spring 208 is welded to the slide rod 207, and the lower end of the slide rod 207 is welded to the bracket 201. The tension spring 208 provides a downward pulling force to the slide rod 207, causing the pressure column 206 to move downward and press against the elastic plate 105. This causes the elastic plate 105 to bend downward under normal conditions, thereby facilitating the connection between the elastic plate 105 and the conductive plate 103 located on the lower side.

[0042] A method for detecting relays using a relay detection device includes the following steps:

[0043] S1: Insert the middle rod 307 into the terminal block 108 through the slot 308;

[0044] S2: Press the two V-shaped plates 401 onto the two terminals 107 respectively;

[0045] S3: Fix the door-shaped component 306 onto the L-shaped plate 101;

[0046] S4: Drive the elastic plate 105 to bend upward and connect with the upper conductive plate 103, and observe whether the upper lamp bead 403 lights up.

[0047] S5: Drive the elastic plate 105 to bend downwards and connect with the conductive plate 103 on the lower side, and observe whether the lamp bead 403 on the lower side lights up.

Claims

1. A relay detection device comprising an insulating post (301), characterized in that: A central rod (307) is fixed in the middle of the insulating column (301). A slot (308) is provided at the left end of the central rod (307). The slot (308) is wider at the outside and narrower at the inside. Slider (402) is slidably connected to both the upper and lower ends of the insulating column (301). A V-shaped plate (401) is fixed to the left side of each slider (402).

2. The relay detection apparatus according to claim 1, characterized by: Both ends of the insulating column (301) are fixed with baffles (302), and both ends of the insulating column (301) are fitted with compression springs, which are located between the corresponding middle rod (307) and the slider (402).

3. The relay detection apparatus according to claim 2, characterized by: A power supply (303) is fixed to the right end of the central rod (307). A flexible wire (405) is connected to both the positive and negative terminals of the power supply (303). A guide rod (404) is connected to the right side of each slider (402). An LED bead (403) is connected in series on each guide rod (404). The end of each flexible wire (405) is connected to the end of the corresponding guide rod (404).

4. The relay testing device of claim 3, wherein: The lower end of the insulating column (301) is connected to a connecting frame (304), and a gate-shaped component (306) is fixed to the lower left end of the connecting frame (304). Both the front and rear ends of the gate-shaped component (306) are threaded with pressure screws (305).

5. The relay testing device of claim 4, wherein: The relay testing device is used to test a relay, which includes an L-shaped plate (101). A mounting base (106) is fixed on the left side of the L-shaped plate (101). The right end of an elastic plate (105) passes through the mounting base (106) and is bonded to the mounting base (106). The right ends of two conductive plates (103) pass through the mounting base (106) and are bonded to the mounting base (106). The two conductive plates (103) are located on both sides of the elastic plate (105). A second terminal (108) is fixed on the right end of the elastic plate (105). A first terminal (107) is fixed on the right end of each conductive plate (103).

6. The relay testing device of claim 5, wherein: The elastic plate (105) is provided with contact head two (109) on both the upper and lower sides, and each conductive plate (103) is provided with contact head one (104). The two contact heads one (104) are respectively provided with two contact heads two (109), and the contact head two (109) located on the lower side is in contact with the contact head one (104) located on the lower side.

7. A relay detection device according to claim 6, characterized in that: An electromagnet (102) is fixed to the lower part of the L-shaped plate (101), a bracket (201) is fixed to the left side of the L-shaped plate (101), the middle part of the V-shaped piece (205) is hinged to the bracket (201), an attraction block (209) is glued to the lower part of the V-shaped piece (205), the attraction block (209) is located to the left of the electromagnet (102), and the upper part of the V-shaped piece (205) is located below the elastic plate (105).

8. A relay detection device according to claim 7, characterized in that: A vertical plate (203) is fixed to the left side of the L-shaped plate (101), a tension spring (204) is fixed to the upper part of the vertical plate (203), the right end of the tension spring (204) is fixed to the left side of the V-shaped piece (205), and a stop block (202) is fixed to the middle of the bracket (201).

9. The relay testing device of claim 8, wherein: A slide rod (207) is vertically slidably connected to the bracket (201). A pressure column (206) is fixed on the upper part of the slide rod (207). The pressure column (206) is located on the upper side of the elastic plate (105). The upper end of the tension spring (208) is fixed on the slide rod (207), and the lower end of the slide rod (207) is fixed on the bracket (201).

10. A method of using the relay testing device of claim 9 to test a relay, the method comprising: Includes the following steps: S1: Insert the middle rod (307) into the second terminal (108) through the slot (308); S2: Press the two V-shaped plates (401) onto the two terminal blocks (107) respectively; S3: Fix the door-shaped component (306) onto the L-shaped plate (101); S4: Drive the elastic plate (105) to bend upward and connect with the upper conductive plate (103), and observe whether the upper lamp bead (403) lights up; S5: Drive the elastic plate (105) to bend downwards and connect with the conductive plate (103) on the lower side, and observe whether the lamp bead (403) on the lower side lights up.

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