Multifunctional discrete device test fixture

Abstract

The utility model discloses a multifunctional discrete device test fixture, and relates to the field of discrete device testing, and the multifunctional discrete device test fixture comprises an adapter plate which is fixedly connected to the top of a workbench through bolts, one end of the adapter plate is connected with a plurality of input terminals and a main power socket in parallel, and one end, far away from the plurality of input terminals, of the adapter plate is fixedly connected with a test seat. A plurality of relays, a plurality of control switches and a plurality of indicating lamps are fixedly arranged in the center of the adapter plate, are positioned between the plurality of input terminals and the test seat, and correspond to the plurality of input terminals and the main power socket; and the test seat comprises a plurality of limiting grooves formed in the top of the limiting seat. In conclusion, the device can complete multi-channel DUT testing, and is controlled by the relay, so that the test line is prevented from being plugged and unplugged again, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The present application relates to the field of discrete device testing, and in particular to a multifunctional discrete device testing fixture. Background Art

[0002] MOSFET, transistor, and diode products must undergo performance testing before shipment to confirm that their electrical functions meet the requirements before packaging and shipment.

[0003] When implementing multi-channel DUT testing, because the same test instrument is used, only one discrete device can be tested at a time. When testing the next discrete device, the test instrument needs to be re-plugged and the test line is connected to the next position, which is extremely inconvenient. Utility Model Content

[0004] In order to improve the problem that when testing the next discrete device, the test instrument needs to be re-plugged and the test line is connected to the next position, which is extremely inconvenient, the present application provides a multifunctional discrete device test fixture.

[0005] The present application provides a multifunctional discrete device test fixture that adopts the following technical solutions:

[0006] A multifunctional discrete device test fixture includes an adapter plate fixed to the top of a workbench by bolts, one end of the adapter plate is connected in parallel with a plurality of input terminals and a main power socket, and the end of the adapter plate away from the plurality of input terminals is fixedly connected to a test socket, and a plurality of relays, a plurality of control switches and a plurality of indicator lights are fixedly provided in the center of the adapter plate, wherein the plurality of relays, control switches and indicator lights are located between the plurality of input terminals and the test socket, and the plurality of relays, control switches and indicator lights correspond to the plurality of input terminals and the main power socket.

[0007] By adopting the above technical solution, in this circuit, the various components are connected to each other through wires, thereby jointly realizing the control and indication functions of the circuit status.

[0008] Preferably, the test seat includes a plurality of limiting grooves opened on the top of the limiting seat.

[0009] By adopting the above technical solution, several limit grooves are opened to match the shapes of corresponding discrete devices. The limit grooves are used to accurately fix and position the discrete devices. The discrete devices need to remain stable during the test process to ensure the accuracy of the test results.

[0010] Preferably, the relay includes triangular plugs symmetrically fixed at both ends of the bottom of the relay body, and a plurality of mounting slots are provided on the top of the adapter plate.

[0011] By adopting the above technical solution, the base is designed to be conductive and forms a good electrical connection with the adapter board through welding. In this way, the relay fixed on the base can transmit electrical signals with other parts on the adapter board to achieve the predetermined circuit function.

[0012] Preferably, a base is fixed in each of the installation slots.

[0013] By adopting the above technical solution, the base is used to install the relay, which facilitates the installation and disassembly of the relay.

[0014] Preferably, triangular sockets adapted to the triangular plug are symmetrically provided at both ends of the top of the base.

[0015] By adopting the above technical solution, the relay body is installed on the base by inserting the triangular plug into the triangular socket, and then the relay is fixedly connected to the adapter board, which is convenient for installation and disassembly, and convenient for replacement of the relay.

[0016] Preferably, the plurality of input terminals are connected to an external tester through test lines, and the input ends of the plurality of relays are connected to the corresponding plurality of input terminals and a main power socket.

[0017] By adopting the above technical solution, the input terminal serves as the connection point of the circuit, is used to connect to the external tester, and is then connected to the input end of the relay through a wire. These connections ensure that the current or control signal can be transmitted to the relay.

[0018] Preferably, one end of the control switches is connected to the input ends of the corresponding relays.

[0019] By adopting the above technical solution, the control switch is used to manually control the on and off of the circuit. When the control switch is in a specific state, it will send a control signal to the relay to make the relay operate.

[0020] Preferably, the output ends of the relays are connected to corresponding indicator lights through wires.

[0021] By adopting the above technical solution, when the relay is actuated, current will flow through the output end of the relay to the indicator light, causing the indicator light to light up. In this way, by observing the state of the indicator light, the working conditions of the relay and the circuit can be known.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By using precision sockets, it can support the testing of discrete devices with a variety of different packages;

[0024] 2. Through relay control, the multi-channel relay directly controls multiple limit slot test points on the test socket, and then can control the on and off of multiple test points of the test socket. When it is necessary to test the discrete device in a limit slot, turn on the corresponding control switch to complete the test of the discrete device, avoiding re-plugging the test line. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the connection structure between the adapter board and various components of this application;

[0027] Figure 3 This is a schematic diagram of the adapter board of this application;

[0028] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0029] Figure 5 This is a schematic diagram of the relay body and triangular plug structure of this application.

[0030] Reference numerals: 1, workbench; 2, adapter plate; 3, bolt; 4, test socket; 5, limit slot; 6, input terminal; 7, indicator light; 8, control switch;

[0031] 9. Relay; 91. Base; 92. Triangular socket; 93. Triangular plug; 94. Mounting slot; 95. Relay body;

[0032] 10. Main power socket; 11. Threaded hole; 12. Limit seat. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0034] The embodiments of the present application disclose a multifunctional discrete device test fixture.

[0035] Reference Figure 1 、 Figure 2A multifunctional discrete device test fixture includes a workbench 1. The workbench 1 and the four corners of the top of the adapter plate 2 are provided with threaded holes 11. The bolts 3 pass through the threaded holes 11 on the top of the adapter plate 2 and are threadedly connected to the threaded holes 11 on the top of the workbench 1, fixing the adapter plate 2 to the top of the workbench 1. Several input terminals 6 and a main power socket 10 are connected in parallel at one end of the top of the adapter plate 2. The test port of the external tester is connected to a test line, and the end of the test line away from the tester is fixedly connected to the several input terminals 6. The test seat 4 is fixedly connected to the end of the top of the adapter plate 2 away from the input terminal 6. A limit seat 12 is provided in the test seat 4, and a plurality of MOSFE The limiting slots 5 are adapted to the shapes of T, transistor and diode, and the discrete devices to be tested are fixed in several limiting slots 5. The positions corresponding to several input terminals 6 and the main power socket 10 at the top center of the adapter board 2 are fixedly connected with several relays 9, control switches 8 and indicator lights 7. Several input terminals 6 are electrically connected to the main power socket 10 and the input ends of several relays 9. The input ends of multiple relays 9 are electrically connected to the control switches 8 corresponding to the circuit. Several indicator lights 7 are electrically connected to the output ends of several relays 9 corresponding to one circuit. The multi-channel relays 9 directly control the multiple limiting slots 5 test points on the test socket 4, and can thereby control the on and off of multiple test points of the test socket 4.

[0036] The input terminal 6 is first connected to the external tester, and then connected to the input ends of several relays 9 through wires. The main power socket 10 is connected to the power supply to provide power. The several relays 9 corresponding to the main power socket 10 and the control switch 8 control the on and off of the main power. The control switch 8 is connected to the input end of the relay 9 to control the action of the relay 9. When the control switch 8 is in a specific state, the relay 9 will act and close its normally open contact. At this time, the current will flow to the indicator light 7 through the output end of the relay 9, making the indicator light 7 light up. In this way, a complete control circuit is formed consisting of several input terminals 6, several relays 9, several control switches 8, several indicator lights 7 and several test points on the test socket 4. In this circuit, the various components are connected to each other through wires, and together realize the control and indication functions of the circuit status.

[0037] refer to Figure 3-Figure 5 The relay 9 includes triangular plugs 93 symmetrically fixed at both ends of the bottom of the relay body 95, a number of mounting grooves 94 are opened on the top of the adapter plate 2, a number of bases 91 are fixedly welded in the number of mounting grooves 94, and triangular sockets 92 are symmetrically opened at both ends of the top of the number of bases 91, and the triangular plugs 93 are inserted into the corresponding triangular sockets 92.

[0038] The relay 9 is installed on the base 91 by inserting the triangular plug 93 into the triangular socket 92, which is convenient for installation of the relay 9 and for later replacement of the relay 9.

[0039] The test socket 4, adapter board 2, input terminal 6, indicator light 7, control switch 8, relay 9 and main power socket 10 are all existing technologies, and their structures are not described in detail.

[0040] The implementation principle of a multifunctional discrete device test fixture in an embodiment of the present application is: when in use, open the test socket 4, place the various MOSFETs, transistors and diodes to be tested in the corresponding limit slots 5, then close the test socket 4 cover, and then open the control switch 8 on the relay 9 corresponding to the test points of the limit slots 5 in turn. The control switch 8 is used to send a control signal to the relay 9, and the current will flow to the indicator light 7 through the output end of the relay 9, so that the indicator light 7 lights up. By observing the status of the indicator light 7, the working status of the relay 9 and the current can be known, and the test of the discrete device can be completed to avoid re-plugging the test line.

[0041] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A multifunctional discrete device test fixture, comprising an adapter plate (2) fixed to the top of a workbench (1) by bolts (3), characterized in that: One end of the adapter board (2) is connected in parallel with a plurality of input terminals (6) and a main power socket (10); one end of the adapter board (2) away from the plurality of input terminals (6) is fixedly connected with a test socket (4); a plurality of relays (9), a plurality of control switches (8) and a plurality of indicator lights (7) are fixedly arranged in the center of the adapter board (2); the plurality of relays (9), the control switches (8) and the plurality of indicator lights (7) are located between the plurality of input terminals (6) and the test socket (4); the plurality of relays (9), the plurality of control switches (8) and the plurality of indicator lights (7) correspond to the plurality of input terminals (6) and the main power socket (10).

2. The multifunctional discrete device test fixture according to claim 1, characterized in that: The test seat (4) comprises a plurality of limiting grooves (5) formed on the top of the limiting seat (12).

3. The multifunctional discrete device test fixture according to claim 2, characterized in that: The relay (9) comprises triangular plugs (93) symmetrically fixed at both ends of the bottom of the relay body (95), and a plurality of mounting slots (94) are provided on the top of the adapter plate (2).

4. The multifunctional discrete device test fixture according to claim 3, characterized in that: A base (91) is fixedly arranged in each of the plurality of mounting grooves (94).

5. The multifunctional discrete device test fixture according to claim 4, characterized in that: The top ends of the base (91) are symmetrically provided with triangular sockets (92) adapted to the triangular plug (93).

6. The multifunctional discrete device test fixture according to claim 1, characterized in that: The plurality of input terminals (6) are connected to an external tester via test lines, and the input ends of the plurality of relays (9) are connected to the corresponding plurality of input terminals (6) and a main power socket (10).

7. The multifunctional discrete device test fixture according to claim 6, characterized in that: One end of the plurality of control switches (8) is connected to the input end of the corresponding plurality of relays (9).

8. The multifunctional discrete device test fixture according to claim 7, characterized in that: The output ends of the relays (9) are connected to corresponding indicator lights (7) via wires.

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