A relay testing tool

Abstract

The present invention relates to the technical field of relay testing, and discloses a relay testing tool, including an insulating mounting seat, a first detection column, a second detection column and a support assembly, wherein the first detection column is slidably arranged on the insulating mounting seat, and the first detection column can move along its own axis; the second detection column is slidably arranged on the insulating mounting seat, and the second detection column can move along its own axis, and the first detection column is provided with a first through hole whose inner diameter is larger than the outer diameter of the second detection column, and one end of the second detection column passes through the first through hole and is exposed to the first through hole; the relay to be tested is placed on the support assembly, and the relay is located below the insulating mounting seat; during testing, the first detection column contacts the terminal of the relay, and the second detection column is inserted into the wiring hole of the terminal, and contacts the bottom surface of the wiring hole. The contact between the first detection column and the second detection column and the terminal is surface contact, which can prevent the relay terminal from being compressed and damaged.

Description

Technical Field

[0001] The invention relates to the technical field of relay testing, and in particular to a relay testing tool. Background Art

[0002] High-voltage DC relays are widely used in testing industries such as new energy vehicle connectors, charging piles, and industrial automation.

[0003] There are two main types of traditional relay test fixtures. One type of test fixture includes a connection block and a probe set on the connection block. The connection block moves downward to allow the probe to abut against the relay's terminal to test the relay. However, the contact between the probe and the terminal is point contact, which can easily damage the surface of the relay's terminal; when the probe contacts the surface of the terminal, the pull-in time fluctuates. Furthermore, the test pressure surface is not compatible with the resistance test value and appearance requirements.

[0004] Another type of test fixture includes a threaded column, the end of which is pointed and in contact with the relay. The threaded column is prone to scratching the surface of the terminal during manual assembly, affecting product quality and appearance. Furthermore, the threaded contact test requires manual assembly and testing, which is inefficient, increases labor costs, and cannot guarantee quality.

[0005] Therefore, a relay testing tool is urgently needed to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a relay testing tool, which can increase the contact area with the relay terminal and avoid the relay terminal being compressed and damaged due to the contact force area being too small.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A relay test tool is provided, comprising:

[0009] Insulation mounting base;

[0010] A first detection column, which is slidably disposed on the insulating mounting seat, and the first detection column can move along its own axis;

[0011] A second detection column, which is slidably disposed on the insulating mounting seat, the second detection column can move along its own axis, the first detection column is provided with a first through hole whose inner diameter is larger than the outer diameter of the second detection column, one end of the second detection column passes through the first through hole and is exposed outside the first through hole;

[0012] A support assembly, on which the relay to be tested is placed, and the relay is located below the insulating mounting seat;

[0013] When the relay is detected, the first detection column contacts the connection column of the relay, and the second detection column is inserted into the connection hole of the connection column and contacts the bottom surface of the connection hole.

[0014] Preferably, it further comprises a connecting column, and the first detection column is slidably connected to the insulating mounting seat through the connecting column.

[0015] Preferably, two connecting columns are connected to the first detection column, and the two connecting columns are symmetrically arranged relative to the second detection column.

[0016] Preferably, a first support plate, a second support plate and a third support plate are arranged side by side and at intervals on the insulating mounting seat, and the first support plate, the second support plate and the third support plate are each provided with a second through hole allowing the connecting column to pass through, and a third through hole allowing the second detection column to pass through.

[0017] Preferably, it further includes a first elastic component, one end of which presses against the connecting column, and the other end presses against the first supporting plate or the second supporting plate, and the first elastic component can move the first detection column toward the relay.

[0018] Preferably, it further includes a second elastic component, one end of which presses against the second detection column, and the other end presses against the first support plate or the second support plate, and the second elastic component can move the second detection column toward the relay.

[0019] Preferably, a detection instrument is further included, and the first detection column and the second detection column are both electrically connected to the detection instrument.

[0020] Preferably, it also includes a detection plug, which can be plugged into the relay and is electrically connected to the detection instrument.

[0021] Preferably, it also includes a driving component, the supporting component includes a bracket and a supporting platform, the bracket is fixed on the supporting platform, the insulating mounting seat is slidably arranged on the bracket, and the driving component can drive the insulating mounting seat to move towards or away from the relay.

[0022] Preferably, one of the bracket and the insulating mounting seat is provided with a slide rail, and the other is provided with a slider matching the slide rail.

[0023] Beneficial effects of the present invention:

[0024] When the first detection post contacts the terminal of the relay, it will slide upward to avoid hard impact on the terminal, which can better protect the terminal of the relay from damage during detection. The first detection post and the terminal are in surface contact, and the contact area is relatively large, which can well increase the force area of ​​the terminal, thereby increasing conductivity; due to the large contact area, the surface of the relay terminal will not be damaged due to the small test contact force area.

[0025] When the second detection post contacts the bottom of the wiring hole of the terminal, the second detection post will slide upward to avoid hard impact on the terminal, which can better protect the relay terminal from damage during detection. The second detection post is in surface contact with the bottom of the wiring hole, and the contact area is relatively large, which can well increase the force-bearing area of ​​the bottom of the wiring hole, thereby increasing conductivity; due to the large contact area, the bottom of the wiring hole of the relay will not be damaged by pressure due to the small test contact force area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the relay testing tool provided by the present invention;

[0027] Figure 2 The partial structure diagram of the relay test tool provided by the present invention is Figure 1 ;

[0028] Figure 3 The partial structure diagram of the relay test tool provided by the present invention is Figure 2 ;

[0029] Figure 4 It is a cross-sectional view of the local structure of the relay testing tool provided by the present invention.

[0030] In the figure: 1, insulating mounting seat; 11, first supporting plate; 12, second supporting plate; 13, third supporting plate; 14, slider;

[0031] 2. First detection column; 21. First through hole; 3. Second detection column; 31. Second elastic component; 4. Connecting column; 41. First elastic component; 5. Support component; 51. Bracket; 52. Support platform; 53. Positioning carrier; 54. Slide rail; 6. Driving component; 7. Detection instrument; 8. Detection plug;

[0032] 10. Relay; 101. Terminal. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] like Figure 1-4 As shown, this embodiment discloses a relay testing tool, which includes an insulating mounting seat 1, a first detection column 2, a second detection column 3, a connecting column 4 and a supporting assembly 5.

[0036] The first support plate 11, the second support plate 12 and the third support plate 13 are arranged side by side and at intervals on the insulating mounting seat 1, and the first support plate 11, the second support plate 12 and the third support plate 13 are all provided with a second through hole allowing the connection column 4 to pass through, and a third through hole allowing the second detection column 3 to pass through. The first support plate 11, the second support plate 12 and the third support plate 13 are all arranged parallel to the horizontal plane, and are the first support plate 11, the second support plate 12 and the third support plate 13 from top to bottom.

[0037] The first detection column 2 is slidably disposed on the insulating mounting seat 1. The first detection column 2 can move along its own axis. The first detection column 2 is slidably connected to the insulating mounting seat 1 through the connecting column 4. The connecting column 4 is slidably penetrated into the second through hole. The first detection column 2 can move up and down relative to the insulating mounting seat 1.

[0038] The second detection column 3 is slidably disposed on the insulating mounting seat 1. Specifically, the second detection column 3 is slidably disposed in the third through hole. The second detection column 3 can move along its own axis, that is, the second detection column 3 can move up and down relative to the insulating mounting seat 1. The first detection column 2 is provided with a first through hole 21 whose inner diameter is larger than the outer diameter of the second detection column 3. One end of the second detection column 3 passes through the first through hole 21 and is exposed outside the first through hole 21.

[0039] The relay 10 to be tested is placed on the supporting assembly 5 , and the relay 10 is located below the insulating mounting seat 1 .

[0040] When the relay 10 is detected, the first detection column 2 contacts the terminal 101 of the relay 10 , and the second detection column 3 is inserted into the wiring hole of the terminal 101 and contacts the bottom surface of the wiring hole.

[0041] When the first detection post 2 contacts the terminal 101 of the relay 10, the first detection post 2 will slide upward to avoid hard impact on the terminal 101, which can better protect the terminal 101 of the relay 10 from damage during detection. The first detection post 2 and the terminal 101 are in surface contact, and the contact area is relatively large, which can well increase the force area of ​​the terminal 101, thereby increasing the conductivity; due to the large contact area, the surface of the terminal 101 of the relay 10 will not be damaged by pressure due to the small test contact force area.

[0042] When the second detection post 3 contacts the bottom of the wiring hole of the terminal 101, the second detection post 3 will slide upward to avoid hard impact on the terminal 101, which can better protect the terminal 101 of the relay 10 from damage during detection. The second detection post 3 is in surface contact with the bottom of the wiring hole, and the contact area is relatively large, which can well increase the force-bearing area of ​​the bottom of the wiring hole, thereby increasing conductivity; due to the large contact area, the bottom of the wiring hole of the relay 10 will not be damaged by pressure due to the small test contact force area.

[0043] Specifically, since the relay 10 is provided with two terminals 101, the first detection column 2 and the second detection column 3 in this embodiment are both two, and are respectively provided corresponding to the two terminals 101 on the relay 10. The diameter of the first detection column 2 is greater than the diameter of the terminal 101. In this embodiment, the first detection column 2 is connected to two connecting columns 4, and the two connecting columns 4 are symmetrically arranged relative to the second detection column 3. The connection of the first detection column 2 with the two connecting columns 4 can improve the stability of the first detection column 2. In other embodiments, the first detection column 2 can also be connected to three, four, or even more connecting columns 4.

[0044] Optionally, the relay test fixture further includes a first elastic component 41 and a second elastic component 31, one end of the first elastic component 41 presses against the connecting column 4, and the other end presses against the first support plate 11 or the second support plate 12, and the first elastic component 41 can move the first detection column 2 in a direction close to the relay 10. Specifically, a first stop protrusion is provided on the connecting column 4, and the first stop protrusion is located between the first support plate 11 and the second support plate 12, and is located on a side close to the second support plate 12. The first elastic component 41 is a spring, and the spring is sleeved on the connecting column 4, and the two ends of the spring are respectively pressed against the first support plate 11 and the first stop protrusion, that is, the first elastic component 41 is located between the first support plate 11 and the second support plate 12. Under the action of the spring, the first stop protrusion stops on the second support plate 12 to limit the connecting column 4, and then limit the first detection column 2. When the insulating mounting seat 1 moves downward and the first detection post 2 contacts the terminal 101 of the relay 10, the first detection post 2 will slide upward to avoid hard impact on the terminal 101, which can better protect the terminal 101 of the relay 10 from damage during detection. Under the action of the first elastic component 41, the first detection post 2 is pressed against the terminal 101, which can ensure that the first detection post 2 is always pressed against the terminal 101 to avoid poor contact.

[0045] One end of the second elastic component 31 presses against the second detection column 3, and the other end presses against the first support plate 11 or the second support plate 12. The second elastic component 31 can move the second detection column 3 in the direction close to the relay 10. Specifically, a second stop protrusion is provided on the second detection column 3, and the second stop protrusion is located between the second support plate 12 and the third support plate 13, and is located on the side close to the third support plate 13. The second elastic component 31 is a spring, and the spring is sleeved on the second detection column 3. The two ends of the spring press against the second support plate 12 and the second stop protrusion respectively, that is, the second elastic component 31 is located between the second support plate 12 and the third support plate 13. Since the distance between the connecting column 4 and the second detection column 3 is relatively small, the second elastic component 31 and the first elastic component 41 are respectively located on both sides of the second support plate 12, which can avoid mutual interference between the two. Under the action of the spring, the second stop protrusion presses against the third support plate 13 to limit the second detection column 3. When the insulating mounting seat 1 moves downward and the second detection post 3 contacts the bottom of the wiring hole of the terminal 101, the second detection post 3 will slide upward to avoid hard impact on the terminal 101, which can better protect the terminal 101 of the relay 10 from damage during detection. Under the action of the second elastic component 31, the second detection post 3 is pressed against the terminal 101, which can ensure that the second detection post 3 is always pressed against the terminal 101 to avoid poor contact.

[0046] Optionally, the relay test fixture further includes a driving component 6, the supporting component 5 includes a bracket 51 and a supporting platform 52, the bracket 51 is fixed on the supporting platform 52, the insulating mounting seat 1 is slidably arranged on the bracket 51, and the driving component 6 can drive the insulating mounting seat 1 to move in a direction close to or away from the relay 10. The driving component 6 drives the insulating mounting seat 1 to move in a direction close to the relay 10 so as to detect the relay 10; after the detection is completed, it moves in a direction away from the relay 10 so as to replace the next relay 10 and perform the detection. One of the bracket 51 and the insulating mounting seat 1 is provided with a slide rail 54, and the other is provided with a slider 14 that matches the slide rail 54. In this embodiment, the slide rail 54 is arranged on the bracket 51 in a vertical direction, and the slider 14 is arranged on the connecting plate of the insulating mounting seat 1. The driving component 6 is a cylinder, and the output end of the cylinder is connected to the insulating mounting seat 1. In other embodiments, the driving component 6 can also be an electric cylinder or an oil cylinder, etc. Optionally, the support assembly 5 further includes a positioning carrier 53, the positioning carrier 53 is fixed on the support platform 52, and the relay 10 is fixed on the positioning carrier 53, so as to detect the relay 10. The bottom of the support platform 52 is provided with a support foot.

[0047] Optionally, the relay testing tool also includes a detection instrument 7 and a detection plug 8, and the first detection column 2 and the second detection column 3 are both electrically connected to the detection instrument 7. The first detection column 2 is connected by a conductive signal line connected between the connection column 4 and the detection instrument 7, and the two connection columns 4 on the first detection column 2 are connected to the same conductive signal line. The first detection column 2 is used to detect the pull-in time, rebound, voltage, release time and voltage performance of the relay 10, and the detection information is displayed on the detection instrument 7. The second detection column 3 is connected to the detection instrument 7 through a conductive signal line, and the second detection column 3 is used to detect the contact resistance and other properties of the relay 10, and the detection information is displayed on the detection instrument 7. The detection plug 8 can be inserted into the relay 10, and the detection plug 8 is electrically connected to the detection instrument 7. The detection plug 8 is used to detect the coil power supply and coil resistance of the relay 10 and other properties, and the detection information is displayed on the detection instrument 7.

[0048] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A relay testing tool, characterized in that: include: Insulating mounting base (1); A first detection column (2) is slidably disposed on the insulating mounting seat (1), and the first detection column (2) is capable of moving along its own axis; a second detection column (3) which is slidably disposed on the insulating mounting seat (1); the second detection column (3) is capable of moving along its own axis; the first detection column (2) is provided with a first through hole (21) whose inner diameter is larger than the outer diameter of the second detection column (3); one end of the second detection column (3) passes through the first through hole (21) and is exposed outside the first through hole (21); A support assembly (5), on which a relay (10) to be tested is placed, and the relay (10) is located below the insulating mounting seat (1); When detecting the relay (10), the first detection column (2) contacts the terminal (101) of the relay (10), and the second detection column (3) is inserted into the wiring hole of the terminal (101) and contacts the bottom surface of the wiring hole; It also comprises a connecting column (4), and the first detection column (2) is slidably connected to the insulating mounting seat (1) via the connecting column (4); The first detection column (2) is connected to two connection columns (4), and the two connection columns (4) are symmetrically arranged relative to the second detection column (3); A first support plate (11), a second support plate (12) and a third support plate (13) are arranged side by side and at intervals on the insulating mounting seat (1); the first support plate (11), the second support plate (12) and the third support plate (13) are all provided with a second through hole allowing the connecting column (4) to pass through, and a third through hole allowing the second detection column (3) to pass through. It also comprises a first elastic component (41), one end of the first elastic component (41) is pressed against the connecting column (4), and the other end is pressed against the first supporting plate (11) or the second supporting plate (12), the first elastic component (41) is capable of moving the first detection column (2) in a direction close to the relay (10), and the first elastic component (41) is located between the first supporting plate (11) and the second supporting plate (12); The second elastic component (31) further comprises a second elastic component (31), one end of the second elastic component (31) being pressed against the second detection column (3), and the other end being pressed against the first support plate (11) or the second support plate (12), the second elastic component (31) being capable of causing the second detection column (3) to move in a direction close to the relay (10), and the second elastic component (31) being located between the second support plate (12) and the third support plate (13).

2. The relay testing tool according to claim 1, characterized in that: It also comprises a detection instrument (7), and the first detection column (2) and the second detection column (3) are both electrically connected to the detection instrument (7).

3. The relay testing tool according to claim 2, characterized in that: It also comprises a detection plug (8), which can be plugged into the relay (10), and the detection plug (8) is electrically connected to the detection instrument (7).

4. The relay testing tool according to claim 1, characterized in that: The invention also comprises a driving component (6), wherein the supporting component (5) comprises a bracket (51), a supporting platform (52) and a positioning carrier (53), wherein the bracket (51) and the positioning carrier (53) are fixed on the supporting platform (52), and the insulating mounting seat (1) is slidably arranged on the bracket (51). The driving component (6) is capable of driving the insulating mounting seat (1) to move in a direction close to or away from the relay (10), and the relay (10) is fixed on the positioning carrier (53).

5. The relay testing tool according to claim 4, characterized in that: One of the bracket (51) and the insulating mounting seat (1) is provided with a slide rail (54), and the other is provided with a sliding block (14) matching the slide rail (54).

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