Circuit connection stability detection device of MOS (Metal Oxide Semiconductor) device

Abstract

The utility model discloses a circuit connection stability detection device of an MOS device, which comprises a measuring device for detecting an MOS device A, a universal meter main body and a detection meter pen electrically connected with the universal meter main body, the bracket comprises a mounting box connected with one end of the universal meter main body through a hinge, an overturning supporting plate rotationally connected with the end part, far away from the universal meter main body, of the mounting box, and an overturning supporting plate rotationally connected with the overturning supporting plate, a first fixing shaft penetrates through one side, located in the mounting box, of the overturning supporting plate, and a second fixing shaft penetrates through one side of the overturning supporting plate; the placing plate is connected with the mounting box in a drawing manner; a universal meter and MOS devices are arranged in a suspended mode, the overturning supporting plate is flatly placed on the table top, the overturning supporting plate supports the suspended universal meter body, the situation that when a detection meter pen is used, the connection condition of the universal meter body and the detection meter pen is interfered is avoided, the MOS device A is placed on the object placing plate, the binding elastic belt binds the MOS device A, the MOS device A is arranged in a suspended mode, and contact detection of the detection meter pen is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit detection instruments, and particularly relates to a device for detecting the circuit connection stability of MOS devices. Background Art

[0002] MOS devices are common semiconductor devices and are widely used in fields such as digital circuits, analog circuits, and power electronics. Their normal operation is crucial for the entire circuit. To ensure the stability and reliability of circuit connections, instruments are generally used for detection. A multimeter is a commonly used instrument for detecting the quality of MOS devices. A multimeter is a multi-functional and multi-range measuring instrument. Generally, a multimeter can measure direct current, direct voltage, alternating current, alternating voltage, resistance, audio level, etc. By measuring the drain-source resistance of a MOS device with a multimeter, it can be determined whether there is a fault. Under normal circumstances, the drain-source resistance of a MOS transistor should be very high. If the reading is low or zero, it may indicate that the MOS transistor is damaged.

[0003] When using a multimeter to detect whether a MOS device has a fault, generally, the multimeter and the MOS device are placed flat on the workbench, and then the tip of the test lead connected to the multimeter is contacted with the MOS device pin for measurement. During the above measurement process, the multimeter is placed flat, which is not conducive to viewing the measured data. Although some multimeters have a diagonal strut and can be placed diagonally, this placed multimeter is unstable, and its bottom is close to the tabletop, and one end of the test lead is too close to the tabletop, and it is easy to be interfered during the movement and use of the test lead, resulting in poor connection between the test lead and the multimeter. When using a multimeter in combination with test leads to detect the circuit connection stability of a MOS device, there is a problem that the multimeter and the MOS device are not designed to be suspended. For this reason, this application proposes a device for detecting the circuit connection stability of MOS devices. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for detecting the circuit connection stability of MOS devices, so as to solve the problem of the design that the multimeter and the MOS device are not suspended as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for detecting the circuit connection stability of MOS devices, including

[0006] A measuring device for detecting MOS device A, including a multimeter main body and a detection test lead electrically connected to the multimeter main body;

[0007] The bracket includes an installation box connected to one end of the multimeter body through a hinge, a flipping support plate rotatably connected to the end of the installation box away from the multimeter body, and a flipping support plate rotatably connected to the flipping support plate. One side of the flipping support plate located inside the installation box is penetrated by a first fixed shaft, and one side of the flipping support plate is penetrated by a second fixed shaft;

[0008] A placement plate slidably connected to the installation box, the inner surface of the placement plate is provided with an inclined plate, and a restraint assembly is arranged inside the placement plate. The restraint assembly includes a connecting rod connected to the inner surface of the bottom end of the placement plate, a restraint elastic band slidably connected to the connecting rod, and a hook connected to the end of the restraint elastic band away from the connecting rod.

[0009] Preferably, a MOS device placement assembly is arranged on the inner side wall of the placement plate. The MOS device placement assembly includes a fixed column connected to the inner side wall of the placement plate, a rotating column rotatably connected to the fixed column, a placement plate fixedly connected to the rotating column, and a binding elastic band sleeved on the placement plate.

[0010] Preferably, a raised stopper is arranged at the corner position on the side of the placement plate away from the rotating column, and a rectangular movable groove for the binding elastic band to bypass is formed on the placement plate.

[0011] Preferably, baffles are arranged on the opposite inner side walls of the placement plate, and winding rods are arranged on the inner surfaces of the top end and the bottom end of the placement plate.

[0012] Preferably, the hook is in a bent shape, and a through hole for the hook to penetrate is formed in the inclined plate.

[0013] Preferably, a first rectangular groove is formed in the installation box, the flipping support plate is located in the first rectangular groove, the thickness of the flipping support plate is the same as the depth of the first rectangular groove, a second rectangular groove is formed on the surface of the flipping support plate, the flipping support plate is located in the second rectangular groove, and the thickness of the flipping support plate is the same as the depth of the second rectangular groove.

[0014] Preferably, the first fixed shaft and the second fixed shaft have the same diameter, and damping rubber rings are arranged on the outer surfaces of the first fixed shaft and the second fixed shaft.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] In the present utility model, there is a design for suspending and placing a multimeter and MOS devices. The flipping support plate lies flat on the workbench surface. The flipping support plate has a large contact area with the workbench surface, multiple support points, and stable support. The inclined flipping support plate holds the inclined bottom end of the multimeter body, keeping it in a suspended and stable state, avoiding interference with the connection between the multimeter body and the wire interface at the end of the test probe when using the test probe. The MOS device A is placed on the placement plate, and the binding elastic band binds the MOS device A to suspend it for easy contact and detection by the test probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a front view structural diagram of the placement plate of the present utility model;

[0019] Figure 3 is a sectional view structural diagram of the placement plate of the present utility model;

[0020] Figure 4 is of the present utility model Figure 2 amplified structural diagram of part B;

[0021] Figure 5 is a three-dimensional structural diagram of the placement plate of the present utility model;

[0022] In the figure: 1, multimeter body; 2, test probe; 3, installation box; 4, flipping support plate; 5, flipping support plate; 6, placement plate; 8, placement plate; 41, first fixed shaft; 51, second fixed shaft; 61, inclined plate; 62, baffle; 63, wire winding rod; 71, connecting rod; 72, binding elastic band; 73, hook; 81, binding elastic band; 82, rotating column; 83, fixed column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a circuit connection stability detection device for a MOS device, including a measuring device for detecting the MOS device A, which includes a multimeter main body 1 and a detection probe 2 electrically connected to the multimeter main body 1. One end of the detection probe 2 is connected to the multimeter main body 1, and the other end of the detection probe 2 contacts the MOS device A. The detection principle is a conventional technical means and will not be elaborated in detail in this application; a bracket, including a mounting box 3 connected to one end of the multimeter main body 1 through a hinge, a flipping support plate 4 rotatably connected to the end of the mounting box 3 away from the multimeter main body 1, and a flipping support plate 5 rotatably connected to the flipping support plate 4. When the multimeter main body 1 is placed obliquely, a first fixed shaft 41 penetrates through one side of the flipping support plate 4 located inside the mounting box 3. Both ends of the first fixed shaft 41 are combined with the mounting box 3 by a conventional method. A second fixed shaft 51 penetrates through one side of the flipping support plate 5. The second fixed shaft 51 is combined with the flipping support plate 4 by a conventional method. Open the mounting box 3 to tilt the multimeter main body 1. Open the flipping support plate 4 with the first fixed shaft 41 as the axis. The flipping support plate 4 lies flat on the workbench surface. The flipping support plate 4 has a large contact area with the workbench surface and many support points, so the support is stable. Open the flipping support plate 5 with the second fixed shaft 51 as the axis. The tilted flipping support plate 5 supports the tilted bottom end of the multimeter main body 1, making it in a suspended stable state. There is a certain distance between one end of the detection probe 2 and the workbench surface, avoiding interference with the connection situation between the multimeter main body 1 and the end of the detection probe 2 when using the detection probe 2. The tilt angle of the multimeter main body 1 can be changed by adjusting the angle of the flipping support plate 5, which is suitable for operators of different heights; a placement plate 6 slidably connected to the mounting box 3. The position of the slidable placement plate 6 can be adjusted. The inner surface of the placement plate 6 is provided with an inclined plate 61. The inside of the placement plate 6 is provided with a restraint assembly. The restraint assembly includes a connecting rod 71 connected to the inner surface of the bottom end of the placement plate 6, a restraint elastic band 72 slidably connected to the connecting rod 71, and a hook 73 connected to the end of the restraint elastic band 72 away from the connecting rod 71. The detection probe 2 is wound and placed inside the placement plate 6. The restraint elastic band 72 restrains the wound detection probe 2 and its wires, so that it can be retracted.

[0026] In this embodiment, a MOS device placement assembly is provided on the inner side wall of the placement plate 6. The MOS device placement assembly includes a fixed column 83 connected to the inner side wall of the placement plate 6, a rotating column 82 rotatably connected to the fixed column 83, a placement plate 8 fixedly connected to the rotating column 82, and a binding elastic band 81 sleeved on the placement plate 8. A raised block is provided at the corner position on the side of the placement plate 8 away from the rotating column 82. A rectangular movable groove for the binding elastic band 81 to bypass is provided on the placement plate 8. The fixed column 83 is combined with the placement plate 6 by a conventional method, and the rotating column 82 is combined with the placement plate 8 by a conventional method. When detecting the MOS device A, it can be placed on the placement plate 8. The binding elastic band 81 restrains the MOS device A, making it suspended for placement, which is conducive to the end of the detection probe 2 contacting the pins on the MOS device A.

[0027] In this embodiment, baffles 62 are provided on the inner walls of the placement plate 6 that face each other. The baffles 62 play a blocking role. When the detection pen 2 is placed obliquely, the diagonal baffles 62 block the detection pen 2, which is beneficial for the detection pen 2 to be placed obliquely. On the inner surfaces of the top and bottom ends of the placement plate 6, wire winding rods 63 are provided. The wires on the detection pen 2 are wound around the wire winding rods 63, which is beneficial for winding up the wires. The hook 73 is in a bent shape, and through holes for the hook 73 to penetrate are provided on the inclined plate 61. The hook 73 passes through the inclined plate 61, and the binding elastic band 72 binds the placed detection pen 2.

[0028] In this embodiment, a first rectangular groove is provided on the mounting box 3. The flipping support plate 4 is located in the first rectangular groove. The thickness of the flipping support plate 4 is the same as the depth of the first rectangular groove. A second rectangular groove is provided on the surface of the flipping support plate 4. The flipping support plate 5 is located in the second rectangular groove. The thickness of the flipping support plate 5 is the same as the depth of the second rectangular groove. The diameters of the first fixed shaft 41 and the second fixed shaft 51 are the same. Taking the first fixed shaft 41 as the axis, the flipping support plate 4 is opened, and the flipping support plate 4 lies flat on the workbench. The contact area between the flipping support plate 4 and the workbench is large, and there are many support points, so the support is stable. Taking the second fixed shaft 51 as the axis, the flipping support plate 5 is opened, and the inclined flipping support plate 5 supports the inclined bottom end of the multimeter main body 1, making it in a suspended stable state. There is a certain distance between the wire at one end of the detection pen 2 and the workbench surface, avoiding interference with the connection situation between the multimeter main body 1 and the wire interface at the end of the detection pen 2 when using the detection pen 2.

[0029] The working principle and usage process of the present utility model:

[0030] When the multimeter detects the MOS device A, the mounting box 3 is opened to make the multimeter main body 1 inclined;

[0031] After that, taking the first fixed shaft 41 as the axis, the flipping support plate 4 is opened, and the flipping support plate 4 lies flat on the workbench. The contact area between the flipping support plate 4 and the workbench is large, and there are many support points, so the support is stable;

[0032] Then, taking the second fixed shaft 51 as the axis, the flipping support plate 5 is opened, and the inclined flipping support plate 5 supports the inclined bottom end of the multimeter main body 1, making it in a suspended stable state. There is a certain distance between the wire at one end of the detection pen 2 and the workbench surface, avoiding interference with the connection situation between the multimeter main body 1 and the wire interface at the end of the detection pen 2 when using the detection pen 2;

[0033] The angle of the flipping support plate 5 can be adjusted, thereby changing the inclination angle of the multimeter main body 1, which is suitable for operators of different heights;

[0034] When detecting the MOS device A, it can be placed on the placement plate 8, and the binding elastic band 81 binds the MOS device A, making it placed in a suspended state, which is beneficial for the end of the detection pen 2 to contact the pins on the MOS device A;

[0035] After the detection is completed, the wires on the detection pen 2 are wound around the wire winding rods 63, which is beneficial for winding up the wires;

[0036] The detection probe 2 is obliquely placed between the diagonal baffles 62, and the binding elastic band 72 is stretched so that the hook 73 passes through the inclined plate 61. The binding elastic band 72 binds the placed detection probe 2 and the wound wire, facilitating operation and use;

[0037] In summary: There is a design of suspending the multimeter and the MOS device. The flipping support plate 4 lies flat on the workbench surface. The flipping support plate 4 has a large contact area with the workbench surface, multiple support points, and stable support. The inclined flipping support plate 5 supports the inclined bottom end of the multimeter body 1, keeping it in a suspended stable state, avoiding interference with the connection between the multimeter body 1 and the wire interface at the end of the detection probe 2 when using the detection probe 2. The MOS device A is placed on the placement plate 8, and the binding elastic band 81 binds the MOS device A to suspend it for placement, facilitating the detection probe 2 to make contact for detection.

[0038] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit connection stability detection device for a MOS device, characterized in that: include A measuring device for detecting a MOS device A comprises a multimeter body (1) and a detection probe (2) electrically connected to the multimeter body (1); The bracket comprises a mounting box (3) connected to one end of a multimeter body (1) via a hinge, a flip support plate (4) rotatably connected to an end of the mounting box (3) away from the multimeter body (1), and a flip support plate (5) rotatably connected to the flip support plate (4), wherein a first fixed shaft (41) passes through one side of the flip support plate (4) located in the mounting box (3), and a second fixed shaft (51) passes through one side of the flip support plate (5); A placement plate (6) is connected to the installation box (3) in a pull-out manner, the inner surface of the placement plate (6) is provided with an inclined plate (61), and a binding assembly is provided inside the placement plate (6), the binding assembly comprising a connecting rod (71) connected to the inner surface of the bottom end of the placement plate (6), a binding elastic belt (72) slidably connected to the connecting rod (71), and a hook (73) connected to the end of the binding elastic belt (72) away from the connecting rod (71).

2. The circuit connection stability detection device of a MOS device according to claim 1, characterized in that: A MOS device placement assembly is provided on the inner side wall of the placement plate (6), and the MOS device placement assembly comprises a fixed column (83) connected to the inner side wall of the placement plate (6), a rotating column (82) rotatably connected to the fixed column (83), a storage plate (8) fixedly connected to the rotating column (82), and a binding elastic belt (81) sleeved on the storage plate (8).

3. The circuit connection stability detection device of a MOS device according to claim 2, characterized in that: A raised stopper is provided at a corner position of the storage plate (8) away from the rotating column (82), and a rectangular movable groove is provided on the storage plate (8) for the binding elastic belt (81) to pass around.

4. The circuit connection stability detection device of a MOS device according to claim 1, characterized in that: Baffles (62) are provided on the opposite inner side walls of the placement plate (6), and winding rods (63) are provided on the inner surfaces of the top and bottom ends of the placement plate (6).

5. The circuit connection stability detection device of a MOS device according to claim 1, characterized in that: The hook (73) is in a curved shape, and the inclined plate (61) is provided with a through hole for the hook (73) to pass through.

6. The circuit connection stability detection device of a MOS device according to claim 1, characterized in that: The installation box (3) is provided with a first rectangular groove, the flip support plate (4) is located in the first rectangular groove, the thickness of the flip support plate (4) is the same as the groove depth of the first rectangular groove, a second rectangular groove is provided on the surface of the flip support plate (4), the flip support plate (5) is located in the second rectangular groove, and the thickness of the flip support plate (5) is the same as the groove depth of the second rectangular groove.

7. The circuit connection stability detection device of a MOS device according to claim 1, characterized in that: The diameters of the first fixed shaft (41) and the second fixed shaft (51) are the same, and damping rubber rings are provided on the outer surfaces of the first fixed shaft (41) and the second fixed shaft (51).

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