CN221039324U - Detection device - Google Patents

Abstract

The utility model discloses a detection device, which belongs to the technical field of low-voltage electrical appliances, and comprises a detection plate, a compression linkage device, a tripping module, a magnetic ring module and a control module, wherein the detection plate comprises a plurality of probe groups, and the probe groups are used for being in one-to-one corresponding contact conduction with a PCBA board to be detected; the multi-connection plate is arranged between the detection plate and the compression linkage device, and the compression linkage device is used for pushing the multi-connection plate towards the detection plate; the tripping module comprises a plurality of tripping pieces which are electrically connected with the probe groups in a one-to-one correspondence manner; the magnetic ring module is used for sending leakage signals to the corresponding PCBA board to be tested through the probe group, and the PCBA board to be tested receives the leakage signals and controls the corresponding tripping piece to perform tripping action; the control module is used for controlling the magnetic ring module to send leakage signals for each PCBA board to be tested and receiving the tripping signals of the tripping module. The detection device provided by the utility model can automatically complete detection of the electric leakage function of a plurality of PCBA boards.

Description

Detection device

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a detection device.

Background

The low-voltage electric appliance is an element or equipment which can manually or automatically switch on or off a circuit according to external signals and requirements so as to realize the switching, control, protection, detection, conversion and adjustment of a circuit or a non-electric object. In general, low-voltage electric appliances can be divided into two main types of electric power distribution appliances and control appliances, and are basic constituent elements of complete electric equipment. In industry, agriculture, traffic, national defense and the power sector of people, low voltage power supply is mostly adopted, so the quality of electrical components directly affects the reliability of a low voltage power supply system.

Currently, in the low voltage electrical appliance industry, PCBA boards (Printed Circuit Board Assembly, PCBA) are manufactured by passing empty boards through SMT pick-up and then through DIP card processes. The leakage function detection link generally needs to be manually tested and judges whether the PCBA meets the requirements, and only one PCBA can be tested at a time by a single person, so that the efficiency is low and the labor investment is high.

Disclosure of utility model

The utility model aims to provide a detection device which can automatically complete the detection of the electric leakage function of a plurality of PCBA boards at a time, improve the efficiency and reduce the labor investment.

To achieve the purpose, the utility model adopts the following technical scheme:

The utility model provides a detection device for detect many even boards, many even boards include a plurality of PCBA boards that await measuring, detection device includes:

The detection board comprises a plurality of probe groups, wherein the probe groups are used for being in one-to-one corresponding contact conduction with the PCBA board to be detected;

The pressing linkage device is used for placing the multi-connection plate between the detection plate and the pressing linkage device, and the pressing linkage device is used for pushing the multi-connection plate towards the detection plate;

The tripping module comprises a plurality of tripping pieces, and the tripping pieces are electrically connected with the probe sets in a one-to-one correspondence manner;

The magnetic ring module is electrically connected with the probe group and is used for sending leakage signals to the corresponding PCBA board to be tested through the probe group, and the PCBA board to be tested receives the leakage signals and controls the corresponding tripping piece to perform tripping action;

The control module is electrically connected with the probe set, the tripping module and the magnetic ring module, and is used for controlling the magnetic ring module to send the electric leakage signal for each PCBA board to be tested and receiving the tripping signal of the tripping module, and the tripping signal is used for judging whether the corresponding tripping piece is normally tripped or not.

Optionally, compress tightly aggregate unit and press including elbow clamp, linkage subassembly and press, the elbow clamp pass through linkage subassembly with the press is connected, the elbow clamp is used for the drive linkage subassembly drives the press extrudees the multiconnection board.

Optionally, the press towards one side of pick-up plate is provided with the multiunit and presses the stick, multiunit press the stick with the PCBA board that awaits measuring one-to-one sets up, press the stick and be used for the extrusion correspondence PCBA board that awaits measuring.

Optionally, the method further comprises:

The carrier plate, the carrier plate set up in the pick-up board top, the carrier plate is used for the location to place the many even boards, the probe group wears to locate the carrier plate and can with the PCBA board that awaits measuring one-to-one contact switches on.

Optionally, a plurality of positioning columns are disposed on the carrier plate.

Optionally, an elastic element is disposed between the carrier plate and the detection plate.

Optionally, the method further comprises:

The control module receives the trigger signals of the switch and controls the magnetic ring module to send the leakage signals for each PCBA to be tested and receives the trip signals of each trip module;

and the pressing detection columns are arranged on the pressing linkage device and/or the carrier plate, each pressing detection column is correspondingly provided with a switch piece, and the pressing detection columns are used for triggering the corresponding switch pieces when the PCBA to be tested is in contact conduction with the probe group.

Optionally, the magnetic ring module includes:

The magnetic rings are electrically connected with the probe groups in a one-to-one correspondence manner;

the core penetrating wires are sequentially penetrated through the magnetic rings and used for introducing leakage current so that the magnetic rings generate the leakage signals.

Optionally, the probe set includes:

The two first probes are electrically connected with the corresponding tripping pieces, and the PCBA to be tested can control the tripping action of the tripping pieces through the two first probes;

And the two second probes are electrically connected with the magnetic ring module, and the magnetic ring module can transmit leakage signals to the PCBA to be tested through the second probes.

Optionally, the device further comprises a detection table and a plurality of connecting columns arranged on the detection table, wherein the connecting columns are detachably connected with the detection plate.

The beneficial effects are that:

According to the detection device provided by the utility model, the multi-connection plate is propped against the detection plate through the compression linkage device, so that the probe group is in one-to-one corresponding contact conduction with the PCBA plates to be detected, the electric connection is stable and reliable, the magnetic ring module is controlled by the control module to send an electric leakage signal to each PCBA plate to be detected, the control module judges whether the tripping piece is normally tripped according to whether the tripping signal of the tripping module is received or not, the detection of the electric leakage function of the corresponding PCBA plate to be detected is realized by judging whether the tripping piece is tripped or not, the detection process is automatically completed, the detection device can detect the electric leakage function of a plurality of PCBA plates at a time, the efficiency is improved, and the labor investment is reduced.

Drawings

FIG. 1 is a schematic diagram of a detection device according to the present utility model;

FIG. 2 is a schematic view of a part of a detection device according to the present utility model;

FIG. 3 is a schematic view of a compression linkage provided by the present utility model;

FIG. 4 is a schematic view of a portion of a detection device according to another embodiment of the present utility model;

FIG. 5 is a schematic view of a portion of a structure of a detecting device according to the present utility model;

fig. 6 is a flowchart of a control method provided by the present utility model.

In the figure:

100. a carrier plate; 101. a groove; 102. a relief groove; 110. positioning columns;

200. A detection plate; 210. a probe set; 220. an elastic member; 230. a first guide assembly; 240. a second socket;

300. A compression linkage; 310. an elbow clamp; 320. a linkage assembly; 321. a base; 3211. a hinge part; 3212. a sliding sleeve part; 322. a connecting rod; 323. a slide bar; 324. a connecting strip; 330. a press machine; 331. a guide plate; 3311. an observation groove; 332. a pressing plate; 340. pressing a rod; 350. a second guide assembly;

400. a magnetic ring module; 410. a first socket;

500. A control module; 510. a control box; 511. a voltage display window; 512. a current display window; 520. a current generator; 530. a manual control module; 531. a first key; 532. a second key; 540. a metering interface;

600. A detection table; 610. a support frame; 611. a fixing plate; 6111. a slit hole; 620. a connecting column; 700. the test column is depressed.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

Referring to fig. 1 to 5, the present embodiment provides a testing device that can be used to test a multi-board, wherein the multi-board includes a plurality of PCBA boards (not shown) to be tested.

Specifically, the detection device includes a detection plate 200, a compression linkage 300, a trip module (not shown), a magnetic ring module 400, and a control module 500. The detection board 200 includes a plurality of probe groups 210, the probe groups 210 are used for being in contact conduction with the PCBA board to be detected in a one-to-one correspondence manner, a multi-connection board is placed between the detection board 200 and the compression linkage 300, and the compression linkage 300 is used for pushing the multi-connection board towards the detection board 200 so as to enable the PCBA board to be detected to be in contact conduction with the corresponding probe groups 210; the trip module includes a plurality of trip units (not shown), and the trip units are electrically connected to the probe sets 210 in a one-to-one correspondence; the magnetic ring module 400 is electrically connected with the probe set 210, and the magnetic ring module 400 can be used for sending leakage signals to the corresponding PCBA board to be tested through the probe set 210, and the PCBA board to be tested receives the leakage signals and controls the corresponding tripping piece to perform tripping action; the control module 500 is electrically connected with the probe set 210, the tripping module and the magnetic ring module 400, the control module 500 can be used for controlling the magnetic ring module 400 to send leakage signals for each PCBA board to be tested and receive tripping signals of the tripping module, and the tripping signals can be used for judging whether corresponding tripping pieces are tripped normally or not. Wherein, each trip piece trips, and the trip module sends a trip signal corresponding to the trip piece to the control module 500, thereby judging whether the corresponding PCBA board to be tested is qualified.

In this embodiment, the pressing linkage device 300 pushes the multiple connection plates towards the detection plate 200, so that the probe set 210 is in one-to-one contact conduction with the PCBA plates to be detected, the electrical connection is stable and reliable, the magnetic ring module 400 is controlled by the control module 500 to send leakage signals for each PCBA plate to be detected, the control module 500 determines whether the tripping piece is normally tripped according to whether the tripping signal of the tripping module is received or not, and the detection process is automatically completed by determining whether the tripping piece is tripped or not so as to detect the leakage function of the corresponding PCBA plate to be detected, so that the detection device can detect the leakage function of a plurality of PCBA plates at a time, the efficiency is improved, and the labor investment is reduced.

Illustratively, the trip includes, but is not limited to, a relay.

In this embodiment, the multi-connection board further includes a board seat (not shown), and the plurality of PCBA boards to be tested are disposed on the board seat, so that the plurality of PCBA boards to be tested are assembled through the board seat, and the multi-connection board is stable and reliable in structure, and convenient for placing the plurality of PCBA boards to be tested. Wherein, be provided with the recess that holds a plurality of PCBA boards on the board seat.

Illustratively, the plurality of PCBA to be tested are distributed in a matrix shape, so as to facilitate assembling of the multi-connection board and to facilitate identifying the relative position of the PCBA to be tested with poor leakage function detection.

In this embodiment, referring to fig. 1, the inspection apparatus further includes an inspection stage 600, and the inspection stage 600 is provided with an inspection plate 200.

Specifically, the detection table 600 is provided with a support 610, and the compression linkage 300 is disposed on the support 610.

Specifically, the control module 500 includes a control box 510, and a detection table 600 is disposed on the control box 510 to ensure compactness of the detection device.

Specifically, the magnetic ring module 400 is disposed between the detection table 600 and the detection plate 200, and is fixed on the detection table 600, so as to ensure the structural compactness of the detection device.

Specifically, the plurality of connection posts 620 on the inspection table 600 support the inspection plate 200 through the connection posts 620, providing an installation space for the magnetic ring module 400. Illustratively, a plurality of connecting posts 620 are spaced along the edge of sensing plate 200 to ensure that sensing plate 200 is stationary.

Specifically, the connection post 620 is detachably connected to the detection plate 200, so that the detection plate 200 is convenient to disassemble and assemble. In this embodiment, through changing the pick-up plate 200 of different models to be applicable to many styles and wait to survey PCBA board, so that detection device can compatible different styles's PCBA board that awaits measuring, solve the bottleneck problem that same detection device can compatible many styles wait to survey PCBA board electric leakage function detection and wait to survey the bottleneck problem that PCBA board upgrading later need change whole detection device, promote detection device's utilization ratio. The probe sets 210 on different test boards 200 may be arranged differently, i.e. the arrangement of the probe sets 210 is adjusted to adapt to the style of the PCBA board to be tested.

Illustratively, the connection post 620 may be removably coupled to the sensing plate 200 by a threaded connection (not shown). Of course, the connection post 620 may be detachably connected to the detection plate 200 in other manners, which are not limited in the present application.

In this embodiment, referring to fig. 1 and 2, the detection device further includes a carrier plate 100, the carrier plate 100 is disposed above the detection plate 200, the carrier plate 100 is used for positioning and placing multiple connection plates, and the probe set 210 penetrates through the carrier plate 100 and can be in contact conduction with the PCBA board to be detected in a one-to-one correspondence manner. Wherein, the carrier 100 is located between the detecting board 200 and the magnetic ring module 400. In this embodiment, through the setting of the carrier plate 100, the positioning placement of the multiple connection plates is facilitated, before the pressing linkage device 300 pushes the multiple connection plates towards the detection plate 200, the probe set 210 is not in contact with the PCBA board to be tested, when the pressing linkage device 300 pushes the multiple connection plates towards the detection plate 200, the multiple connection plates and the carrier plate 100 both move towards the detection plate 200, and then the contact conduction between the PCBA board to be tested and the probe set 210 is realized.

Specifically, the carrier 100 is provided with a groove 101, and the groove 101 has a abdicating effect on a member at the bottom of the multi-link plate, so that the situation that the multi-link plate is tilted due to position interference between the multi-link plate and the carrier 100 is avoided. In addition, the sides of the groove 101 may also be in contact with the multi-link plate to position the multi-link plate.

In one possible embodiment, the carrier 100 is perforated (not shown) to make the carrier frame-shaped. All the probe groups 210 are arranged through the through holes, so that the processing and the forming are convenient. Wherein the groove 101 is provided in communication with the perforation. Illustratively, the multi-link board and carrier board 100 are moved toward the pick-up board 200, and the probe set 210 extends outwardly relative to the through holes to effect contact conduction of the probe set 210 with the PCBA board under test.

In another possible embodiment, the carrier plate 100 is provided with a plurality of probe holes (not shown), and the probe group 210 includes at least two probes, where the probes penetrate the probe holes in a one-to-one correspondence manner. Wherein, the bottom of the groove 101 is provided with a probe hole. Illustratively, the multi-connection board and the carrier board 100 move towards the detection board 200, and the probes extend outwards relative to the probe holes one by one and are in contact conduction with the PCBA board to be detected, so that the safety is effectively improved.

Further, at least one relief groove 102 is provided on the inner surface of the groove 101, and the relief groove 102 facilitates the detection personnel to take and place the multi-connection board relative to the carrier 100. For example, the relief groove 102 is provided with two inner surfaces on two opposite sides of the groove 101.

Specifically, a plurality of positioning holes (not shown) are formed in the multi-connection board, as shown in fig. 2, a plurality of positioning columns 110 are formed in the carrier board 100, and the positioning columns 110 are used for penetrating the positioning holes in a one-to-one correspondence manner so as to position the multi-connection board, conveniently and quickly place the multi-connection board, and effectively ensure that the probe set 210 is in one-to-one accurate contact conduction with the PCBA board to be tested.

Illustratively, the positioning columns 110 are asymmetrically arranged, which has a foolproof effect and prevents the multi-connection board from being placed reversely or in wrong positions relative to the carrier 100.

In a possible embodiment, the elastic member 220 is disposed between the carrier 100 and the detecting plate 200, when the pressing linkage 300 presses the multi-connection plate towards the detecting plate, the upward force of the elastic member 220 and the downward force of the pressing linkage 300 can make the contact between the multi-connection plate and the probe set 210 tighter due to the elastic force of the elastic member 220, so that the conduction effect is better.

In addition, the elastic member 220 further makes the carrier plate 100 have a tendency of moving away from the detection plate 200, when the electric leakage function detection is completed, the driving assembly is in the resetting process, and the elastic member 220 drives the carrier plate 100 to be away from the detection plate 200 and reset, so that the next round of multi-connection plate installation is convenient, and the damage caused by contact with the probe set 210 during multi-connection plate installation is effectively avoided.

Illustratively, the elastic member 220 may be a spring. Specifically, the elastic members 220 may be provided in plurality and spaced along the edge of the carrier plate 100. Taking the shapes of the carrier 100 and the detecting board 200 as rectangular examples, the elastic members 220 are disposed at four corners of the detecting board 200 respectively.

In the present embodiment, referring to fig. 2, the carrier 100 is slidably connected to the detecting board 200, so as to ensure the stability of the carrier 100 moving toward the detecting board 200.

Specifically, the detection device further includes a first screw (not shown) and a first fastener (not shown), where the first screw penetrates the carrier plate 100 and the detection plate 200 and is in threaded connection with the first fastener. The first fastening member may be integrally formed with the detection plate 200, and the first screw member is slidably engaged with the carrier plate 100. In this embodiment, the first screw members are provided with a plurality of elastic members 220 and are in one-to-one correspondence with the elastic members 220, and the first screw members penetrate through the corresponding elastic members 220, so as to facilitate disassembly, assembly and replacement.

In one possible embodiment, a first guiding component 230 is disposed between the carrier plate 100 and the test board 200, and the sliding of the carrier plate 100 towards the test board 200 is guided by the first guiding component 230, so that the PCBA board to be tested is in precise contact with the probe set 210.

Illustratively, the first guide assembly 230 includes a plurality of first guide shafts disposed on the detection board 200, and the first guide shafts are slidably disposed through the carrier board 100 one by one. Taking the shapes of the carrier plate 100 and the detection plate 200 as examples, the first guide shafts are provided with four and are respectively arranged at four corners of the detection plate 200.

In this embodiment, referring to fig. 1 and 3, the pressing linkage 300 includes an elbow clamp 310, a linkage assembly 320 and a press machine 330, wherein the elbow clamp 310 is connected with the press machine 330 through the linkage assembly 320, and the elbow clamp 310 is used for driving the linkage assembly 320 to drive the press machine 330 to press the multi-link plate. In this embodiment, the detecting personnel manually operate the toggle clamp 310 to make the press 330 squeeze the multi-connection board, so as to complete the contact conduction between the PCBA board to be detected and the corresponding probe set 210, and the manual operation can improve the safety in the detection process, and avoid the personal safety problem caused by the misoperation of the press 330 when the multi-connection board is disassembled and assembled and the damage to the probe set 210 and the PCBA board to be detected caused by the misoperation.

In one possible embodiment, a plurality of groups of pressing bars 340 are disposed on a side of the press machine 330 facing the detection board 200, the plurality of groups of pressing bars 340 are disposed in a one-to-one correspondence with the PCBA board to be detected, and the pressing bars 340 are used for pressing the corresponding PCBA board to be detected. Wherein, each group of press bars 340 is provided with a plurality. In this embodiment, the press bar 340 is arranged to form a abdication, so that the press 330 is prevented from extruding the electronic component, and the PCBA board to be tested is effectively protected.

In one possible embodiment, a second guiding assembly 350 is disposed between the press 330 and the supporting frame 610, and the second guiding assembly 350 can make the press 330 move more stably toward the carrier 100, and make the press bar 340 more accurately press the PCBA to be tested.

Illustratively, the second guiding assembly 350 includes a plurality of second guiding shafts disposed on the supporting frame 610 and a plurality of sliding sleeves disposed on the press machine 330, wherein the second guiding shafts are correspondingly slidably disposed through the sliding sleeves one by one. Wherein the second guide shaft extends to be connected with the inspection table 600 to ensure the straightness of the second guide shaft.

In the present embodiment, with continued reference to fig. 1 and 3, the linkage assembly 320 is disposed on the support frame 610. The linkage assembly 320 comprises a base 321, a connecting rod 322 and a sliding rod 323, wherein a hinge portion 3211 and a sliding sleeve portion 3212 are arranged on the base 321, a first end of the elbow clamp 310 is hinged to the hinge portion 3211, a second end of the elbow clamp 310 is an operation end, a region between the first end and the second end of the elbow clamp 310 is hinged to the first end of the connecting rod 322, a second end of the connecting rod 322 is hinged to the first end of the sliding rod 323, and the second end of the sliding rod 323 slides through the sliding sleeve portion 3212 and is connected with the press machine 330. In this embodiment, the second end of the toggle clamp 310 is pulled to drive the link 322 to slide the slide bar 323, so as to achieve the purpose of pressing the multi-link plate by the press 330.

Illustratively, the support frame 610 is provided with a fixing plate 611, the fixing plate 611 is provided with a plurality of elongated holes 6111, each elongated hole 6111 is correspondingly provided with a plurality of groups of second screw connectors and second fasteners, and the second screw connectors penetrate through the base 321 and the corresponding elongated holes 6111 and are in threaded connection with the third fasteners, so that the fixing between the base 321 and the fixing plate 611 is realized, and the distance between the base 321 and the carrier plate 100 is conveniently adjusted. For example, two elongated holes 6111 are provided on the fixing plate 611, and each elongated hole 6111 corresponds to two sets of second screw connectors and second fasteners.

In this embodiment, with continued reference to fig. 1 and 3, the press machine 330 includes a guide plate 331 and a press plate 332, and the guide plate 331 and the press plate 332 are detachably connected. Wherein, the pressing plate 332 is provided with a pressing rod 340, and the guide plate 331 is provided with a sliding sleeve. Further specifically, the slide bar 323 is detachably connected with the pressing plate 332. In this embodiment, for different types of PCBA boards to be tested, the arrangement of the pressing bars 340 is specifically designed, and it can be understood that the pressing plates 332 are divided into different specifications according to the different arrangements of the pressing bars 340, when the type of the PCBA board to be tested is changed, the pressing bars 340 are adapted to squeeze the corresponding PCBA board to be tested by changing the pressing plates 332, so that one detection device is suitable for detecting the leakage function of the PCBA board to be tested of different types.

In one possible embodiment, the guide plate 331 and the pressing plate 332 are detachably connected by screw connection. For example, a second screw (not shown) is inserted through the guide plate 331 and the pressing plate 332 and is screw-coupled with a second fastener (not shown), thereby facilitating the assembly and disassembly.

In one possible embodiment, the second end of the sliding rod 323 is screwed with two nuts (not shown), the two nuts are respectively located at two sides of the press 330, and the press 330 is clamped by the two nuts to realize detachable connection of the sliding rod 323 and the press 330, so that the disassembly and assembly are convenient. In another possible embodiment, the second end of the sliding rod 323 is fixedly connected with a connecting strip 324, both ends of the connecting strip 324 are detachably connected with the press 330 in a threaded connection manner, the connection is stable and reliable, and damage to the press 330 caused by stress concentration is effectively avoided. For example, both ends of the connecting bar 324 are threaded through the connecting bar 324 and the press 330 by a third screw and are screwed with a third fastener.

In a possible embodiment, the guide plate 331 may be provided with an observation groove 3311, the pressing plate 332 is disposed at the observation groove 3311 of the guide plate 331, and the pressing plate 332 is made of a transparent material, so that a detector can observe the situation of the multiple connection plates through the pressing plate 332.

In this embodiment, the magnetic ring module 400 includes a magnetic ring (not shown) and a core wire (not shown), and the magnetic ring is provided with a plurality of magnetic rings and is electrically connected to the probe set 210 in a one-to-one correspondence manner; the core penetrating wires are sequentially penetrated through the magnetic rings and used for introducing leakage current so that the magnetic rings generate leakage signals. The principle that the magnetic ring generates the electric leakage signal through the core wire is the prior art, and redundant description is omitted. In this embodiment, each magnetic ring generates a leakage signal through one wire, and the plurality of leakage signals are sent to the corresponding PCBA boards to be tested through the corresponding probe set 210, so that the detection device is suitable for detecting the leakage function of the plurality of PCBA boards to be tested, and the efficiency is high.

In this embodiment, the control module 500 further includes a power module (not shown), a trip detection module (not shown), and a main control module (not shown). Specifically, the power module is electrically connected to the probe set 210, and the power module is used for supplying power to the corresponding PCBA board to be tested through the probe set 210; the tripping detection module is electrically connected with the probe set 210 and is used for receiving a tripping signal of the tripping module through the probe set 210; the main control module is electrically connected with the magnetic ring module 400, the power supply module and the tripping detection module, and is used for controlling at least one of the magnetic ring module 400 to send leakage signals to the PCBA board to be tested, controlling the power supply module to supply power to the PCBA board to be tested and detecting whether the tripping detection module receives the tripping signals. Wherein, power module, trip detection module and main control module all set up in control box 510.

In this embodiment, taking an example that the main control module can control the magnetic ring module 400 to send leakage signals for the PCBA board to be tested, control the power module to supply power to the PCBA board to be tested and detect whether the trip detection module receives the trip signals, firstly, control the main control module to start an automatic detection function, that is, the main control module controls the power module to supply power to a plurality of PCBA boards to be tested, and control the magnetic ring module 400 to send leakage signals for a plurality of PCBA boards to be tested, that is, control the core wire to pass through leakage current; then, the PCBA boards to be tested receive the corresponding leakage signals and control the corresponding tripping pieces to trip; and finally, the main control module detects whether the tripping detection module receives the tripping signal or not, and the detection of the leakage function of the PCBA to be detected is completed. And judging whether the corresponding PCBA board to be tested meets the requirements or not by judging whether the tripping detection module receives the tripping signal or not.

Illustratively, the power module may be a direct current power supply, or may be an alternating current power supply, or may be a programmable power supply. The power supply voltage of the power supply module can be constant voltage or adjustable voltage. In this embodiment, the power module may also be disposed outside the control box 510.

In a feasible implementation mode, the tripping pieces are connected in series between the probe set and the power module in a one-to-one correspondence manner, and can be arranged at other positions according to the working principle of the PCBA to be tested, so that the tripping performance of the PCBA to be tested in working can be simulated; when the tripping piece trips, the power module is disconnected with the PCBA board to be tested, so that the power-off protection of the PCBA board to be tested is realized.

In a possible implementation manner, the plurality of PCBA boards to be tested in the multi-connection board are divided into a plurality of groups, and the main control module can control the power supply module to sequentially supply power to each group of PCBA boards to be tested of the multi-connection board so as to improve the detection efficiency of the electric leakage function. Specifically, the power supply module is also electrically connected with a power feed relay (not shown). In the embodiment, the initial state of the power supply relay is normally open, the disengaging piece is normally closed, and the main control module controls the power supply relay to be closed so that the power supply module supplies power to the PCBA board to be tested; after the tripping piece trips, the main control module detects that the tripping detection module receives a tripping signal and then controls the power supply relay to be disconnected, so that the effect of disconnecting the power supply is achieved. Illustratively, a plurality of power-up relays may be provided, each power-up relay being electrically connected to a corresponding probe set 210 of a group of PCBA boards under test, and it is understood that power supply to a group of PCBA boards under test may be controlled by one power-up relay.

In one possible implementation, the main control module may control the power module to sequentially supply power to each PCBA to be tested of the multi-connection board. Of course, the main control module can also control the power supply module to supply power for each PCBA to be tested of the multi-connection board in other sequences, and the application is not limited excessively.

In this embodiment, the probe set 210 includes two first probes (not shown), where the two first probes are electrically connected to corresponding trip pieces, and the PCBA board to be tested can control the trip actions of the trip pieces through the two first probes, so as to control the trip actions of the trip pieces. In this embodiment, the PCBA board to be tested can form a first control loop with the trip piece through two first probes, and the PCBA board to be tested controls the trip action of the trip piece through the first loop. Specifically, the probe set 210 further includes two second probes (not shown), where the two second probes are electrically connected to the magnetic ring module 400, and the magnetic ring module 400 can transmit the leakage signal to the PCBA board to be tested through the second probes, so as to achieve the purpose that the plurality of magnetic ring modules 400 transmit the leakage signal to the corresponding PCBA board to be tested. The magnetic ring module 400 can form a second loop with the PCBA board to be tested through the two second probes, and the magnetic ring module 400 transmits leakage signals to the PCBA board to be tested through the second loop.

Specifically, the probe set 210 further includes two third probes (not shown), where the two third probes are electrically connected to the power module, and the power module supplies power to the PCBA board to be tested through the two third probes, so as to achieve the purpose that the power module supplies power to the PCBA boards to be tested. The PCBA board to be tested can form a third loop with the PCBA board to be tested through the two third probes. Illustratively, the trip element may be connected in series in the third circuit, and when the trip element is tripped, the third circuit is disconnected, so as to realize power-off protection of the PCBA board to be tested, and at this time, the carrier board 100 may be driven away from the detection board 200 by the pressing linkage 300.

In this embodiment, after the probe set 210 is in contact with the PCBA board to be tested, the first probe, the second probe and the third probe are set, so that the first circuit, the second circuit and the third circuit are turned on, and after the detection of the leakage function is completed, the probe set 210 is separated from the PCBA board to be tested, so that the first circuit, the second circuit and the third circuit are disconnected, the real-time performance of the detection of the leakage function is ensured, and the PCBA board to be tested is effectively protected.

In a possible embodiment, as shown in fig. 4, the detection device further includes a first plug (not shown), all the second probes are electrically connected with the first plug, the magnetic ring module 400 is provided with a first socket 410, and the first plug and the first socket 410 can realize detachable connection between the second probes and the magnetic ring module 400, so as to facilitate the disassembly, assembly and replacement of the detection board 200. Illustratively, the socket portions of all the second probes are connected to the first plug by a first flat cable (not shown). Illustratively, depending on the number of PCBA boards to be tested of the multi-board, the first socket 410 and the first plug may be provided in a plurality of one-to-one correspondence to facilitate plugging.

In a possible embodiment, as shown in fig. 5, the detection device further includes a second plug (not shown), all second probes and all third probes are electrically connected to the second socket 240, and the control module 500 is connected to the second plug, so that the first probes and the third probes can be detachably connected to the control module 500 through the second plug and the second socket 240, so as to facilitate the disassembly, assembly and replacement of the detection board 200. Illustratively, all of the socket parts of the first and third probes are connected with the second socket 240 through a second flat cable (not shown). Illustratively, according to the number of PCBA boards to be tested of the multi-connection board, a plurality of second sockets 240 and second plugs may be provided in a one-to-one correspondence to facilitate plugging.

In this embodiment, referring to fig. 1, at least one voltage display window 511 is provided on the control box 510, and the power supply voltage of each multi-connection board is displayed through the voltage display window 511.

Specifically, the multi-connection board includes a plurality of rows of PCBAs to be tested, and each voltage display window 511 correspondingly displays a power supply voltage of one row of PCBAs to be tested. Illustratively, the control box 510 is provided with two voltage display windows 511, and the multi-connection board includes two rows of PCBAs to be tested, so as to improve the leakage function detection efficiency.

In one possible implementation, the power supply voltage of the power supply module to the PCBA to be tested may include three parameters, namely under-voltage, over-voltage and normal, to detect the leakage function detection of the PCBA to be tested in different power supply voltage modes.

In this embodiment, as shown in fig. 1, the control module 500 further includes a current generator 520, the power module supplies power to the core wire through the current generator 520, and the current generator 520 can adjust the leakage current flowing through the core wire, when the leakage current reaches the required range, the leakage signal generated by the magnetic ring makes the corresponding PCBA board to be tested control the trip element to trip. In this embodiment, multiple groups of leakage currents can be simulated to detect the PCBA board to be tested, for example, a group of upper limit values and a group of lower limit values are set, and are respectively input and detected to determine whether the PCBA board to be tested is tripped within a required range, and the upper limit values and the lower limit values can be set according to technical parameters of different PCBA boards. Specifically, the control box 510 is provided with at least one current display window 512, and leakage current flowing through the core wire is displayed through the current display window 512. The number of the current display windows 512 may be the same as the number of the voltage display windows 511.

In this embodiment, with continued reference to fig. 1, the control module 500 further includes a manual control module 530, and the automatic detection functions of manual start, scram and reset are performed by the manual control module 530. Illustratively, the manual control module 530 includes a first key 531, a second key 532, and a third key (not shown), the automatic detection function is activated by the first key 531, the automatic detection function is reset by the second key 532, and the automatic detection function is scram by the third key. Of course, the manual control module 530 may have other structures, which are not limited by the present application.

In this embodiment, with continued reference to fig. 1, the control module 500 further includes a tool metering module, through which the tool metering module includes a plurality of metering interfaces 540, and the metering interfaces 540 are used for connecting an external detection device, and detecting the accuracy of the supply voltage and the leakage current through the external detection device, so as to ensure the detection accuracy. Wherein, the tool metering interface 541 is disposed at one side of the detection table 600.

In this embodiment, the control module 500 further includes a signal lamp (not shown), the trip detection module receives the trip signal and sends the trip signal to the main control module, and the main control module controls the signal lamp to display, for example, the signal lamp changes color, red is unqualified for detecting the PCBA board to be detected, and green is qualified for detecting the PCBA board to be detected. Illustratively, the signal lamps may be in one-to-one correspondence with the PCBA boards to be tested of the multi-connection board.

In this embodiment, the control module 500 further includes a buzzer (not shown), and when the electric leakage function is detected, the buzzer sends out an end prompt, and the detecting personnel can operate the pressing linkage 300 to separate the PCBA board to be detected from the probe set 210 and take away the multi-connection board.

In this embodiment, referring to fig. 2 and 3, the detection device further includes a switch (not shown) and a pressing detection column 700, the pressing detection column 700 corresponds to the switch one by one, the switch is electrically connected to the control module 500, the control module 500 receives a trigger signal of the switch and controls the magnetic ring module 400 to send a leakage signal for each PCBA board to be tested, and receives a trip signal sent by the trip module for tripping the corresponding trip. Further, the pressing linkage 300 is provided with a pressing detection column 700, or the carrier plate 100 is provided with a pressing detection column 700, or both the pressing linkage 300 and the carrier plate 100 are provided with the pressing detection column 700. The push-down detection post 700 is used to trigger a switch element when the PCBA board to be tested is in contact conduction with the probe set 210. In this embodiment, when the PCBA board to be tested is in contact with and conducted with the probe set 210, the pressing detection column 700 triggers the switch element, the control module 500 receives the trigger signal, the control magnetic ring module 400 sends an electric leakage signal to each PCBA board to be tested, and when the control module 500 receives the trip signal sent by the trip module for the trip of the corresponding trip element, the corresponding PCBA board to be tested is qualified; when the control module 500 does not receive the corresponding tripping signal, the corresponding PCBA board to be tested is failed, and automatic detection is realized.

Illustratively, the switching elements include, but are not limited to, hall elements, insulated gate bipolar transistors (Insulate-Gate Bipolar Transistor-IGBT), or thyristors, etc.

Specifically, the control module 500 may further control the power module to supply power to the PCBA board to be tested when receiving the trigger signal, i.e. start the automatic detection function.

For example, taking the guide plate 331 and the carrier plate 100 with the pressing detection column 700 as examples, the switch corresponding to the pressing detection column 700 connected to the guide plate 331 is disposed on the detection table 600, and the switch corresponding to the pressing detection column 700 connected to the carrier plate 100 is disposed on the detection plate 200. In this embodiment, when both the two pressing detection columns 700 trigger the switch, the control module 500 starts the automatic detection function, so as to effectively prevent the occurrence of the situation that the automatic detection function is started due to the signal transmission error, and improve the safety.

Example two

Based on the above and the same concept, the present application provides a control method, as shown in fig. 6. The control method may be applied to the detection device according to any of the above embodiments, and it is also understood that the detection device may be controlled based on the control method shown in fig. 6. The control method comprises the following steps:

S100, receiving a starting signal, and starting a detection function based on the starting signal.

In some embodiments, the inspector assembles a plurality of PCBA boards to be inspected to form a multi-connection board, then places the multi-connection board between the inspection board 200 and the pressing linkage 300, then controls the pressing linkage 300 to move downward to push the multi-connection board towards the direction of the inspection board 200, and when the PCBA boards to be inspected are in one-to-one contact conduction with the probe set 210, the control module 500 receives the start signal, and the control module 500 starts the inspection function based on the start signal to realize automatic inspection.

In other embodiments, in the case that the detection device includes the pressing detection column 700, the carrier plate 100 and the switch elements, the detection personnel can place the multi-connection plate on the carrier plate 100, then the pressing linkage device 300 moves downward to push the multi-connection plate towards the direction of the detection plate 200, the pressing detection columns 700 disposed on the pressing linkage device 300 and/or the carrier plate 100 also move downward towards the corresponding switch elements respectively, when the probe set 210 is in contact conduction with the PCBA to be detected one by one, the two pressing detection columns 700 trigger the corresponding switch elements respectively, and the two switch elements both send the start signals to the control module 500, and the control module 500 starts the detection function based on the start signals, so as to realize automatic detection.

In some embodiments, step S100 is preceded by the further step of:

And acquiring the set leakage current value and the set power supply voltage value.

The leakage current value and the supply voltage value may be obtained by the control module 500, the leakage current value refers to the leakage current value introduced into the magnetic ring module 400, multiple groups may be provided, the supply voltage refers to the supply voltage value of the PCBA board to be tested, and the supply voltage value may be set to under-voltage, over-voltage or normal three parameter values, so as to correspond to the PCBA board to be tested to detect multiple requirements.

And S200, a control signal is sent to the magnetic ring module 400, and the control signal is used for controlling the magnetic ring module to send a leakage signal to each PCBA board to be tested, so that the PCBA board to be tested controls the tripping module to perform tripping action.

Specifically, the control module 500 sends a control signal to the magnetic loop module 400. In some embodiments, if the magnetic ring module 400 includes a core wire, the magnetic ring module 400 may provide a leakage current for the core wire through the power module via the current generator 520, so that the magnetic ring generates a leakage signal and sends the leakage signal to the corresponding PCBA board to be tested.

Specifically, S200 further includes the steps of: and supplying power to the PCBA to be tested.

More specifically, the control module 500 supplies power to the corresponding PCBA board under test by powering the electrical relay.

S300, receiving a tripping signal fed back by the tripping module, wherein the tripping signal is used for judging whether the tripping module trips normally or not.

When the tripping piece trips, the corresponding PCBA board to be tested is powered off, the tripping detection module receives a tripping signal sent by the tripping module for the corresponding tripping piece, the signal lamp is green, and the corresponding PCBA board to be tested is qualified; when the trip fastener is not tripped, the trip detection module does not receive a corresponding trip signal, the signal lamp is red, and the corresponding PCBA board to be detected is unqualified.

When the earth leakage protection test is completed, the tester operates the toggle clamp 310 to move the press 330 away from the carrier plate 100 and remove the multi-link plate.

It should be understood that, for the specific execution of the control module 500 in the above steps, reference is made to the above related description, and the detailed description is omitted here.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A test device for testing a multi-gang board, the multi-gang board comprising a plurality of PCBA boards to be tested, the test device comprising:

The detection board (200) comprises a plurality of probe groups (210), wherein the probe groups (210) are used for being in one-to-one contact conduction with the PCBA board to be detected;

a compression linkage (300) between the detection plate (200) and the compression linkage (300) for placing the multi-link plate, the compression linkage (300) for pushing the multi-link plate towards the detection plate (200);

The tripping module comprises a plurality of tripping pieces, and the tripping pieces are electrically connected with the probe groups (210) in a one-to-one correspondence manner;

The magnetic ring module (400) is electrically connected with the probe group (210), and the magnetic ring module (400) is used for sending an electric leakage signal to the corresponding PCBA board to be tested through the probe group (210), and the PCBA board to be tested receives the electric leakage signal and controls the corresponding tripping piece to perform tripping action;

the control module (500) is electrically connected with the probe group (210), the tripping module and the magnetic ring module (400), the control module (500) is used for controlling the magnetic ring module (400) to send the electric leakage signal for each PCBA board to be tested and receive the tripping signal of the tripping module, and the tripping signal is used for judging whether the corresponding tripping piece is normal or not.

2. The device according to claim 1, wherein the pressing linkage device (300) comprises an elbow clamp (310), a linkage assembly (320) and a press machine (330), the elbow clamp (310) is connected with the press machine (330) through the linkage assembly (320), and the elbow clamp (310) is used for driving the linkage assembly (320) to drive the press machine (330) to press the multi-link plate.

3. The device according to claim 2, wherein a plurality of groups of pressing bars (340) are arranged on a side, facing the detection board (200), of the press machine (330), the plurality of groups of pressing bars (340) are arranged in one-to-one correspondence with the PCBA boards to be detected, and the pressing bars (340) are used for pressing the corresponding PCBA boards to be detected.

4. The detection apparatus according to claim 1, characterized by further comprising:

The test device comprises a carrier plate (100), wherein the carrier plate (100) is arranged above a detection plate (200), the carrier plate (100) is used for positioning and placing the multi-connection plate, and the probe group (210) penetrates through the carrier plate (100) and can be in one-to-one contact conduction with the PCBA to be tested.

5. The device according to claim 4, wherein a plurality of positioning posts (110) are provided on the carrier plate (100).

6. The device according to claim 4, characterized in that an elastic element (220) is arranged between the carrier plate (100) and the detection plate (200).

7. The detection apparatus according to claim 4, further comprising:

The control module (500) is electrically connected with the control module (500), receives trigger signals of the switch and controls the magnetic ring module (400) to send the leakage signals for each PCBA to be tested and receives the tripping signals of each tripping module;

And the pressing detection columns (700) are arranged on the pressing linkage device (300) and/or the carrier plate (100), each pressing detection column (700) is correspondingly provided with a switch piece, and the pressing detection columns (700) are used for triggering the corresponding switch pieces when the PCBA board to be tested is in contact conduction with the probe group (210).

8. The detection device according to claim 1, wherein the magnetic ring module (400) comprises:

a plurality of magnetic rings electrically connected to the probe groups (210) in a one-to-one correspondence;

the core penetrating wires are sequentially penetrated through the magnetic rings and used for introducing leakage current so that the magnetic rings generate the leakage signals.

9. The detection apparatus according to claim 1, wherein the probe set (210) includes:

The two first probes are electrically connected with the corresponding tripping pieces, and the PCBA to be tested can control the tripping action of the tripping pieces through the two first probes;

The two second probes are electrically connected with the magnetic ring module (400), and the magnetic ring module (400) can convey leakage signals to the PCBA board to be tested through the second probes.

10. The device of claim 1, further comprising a test table (600) and a plurality of connection posts (620) disposed on the test table (600), the connection posts (620) being detachably connected to the test plate (200).