CN216361863U

CN216361863U - Tool for detecting and identifying poor slots of DIMM (dual inline memory module)

Info

Publication number: CN216361863U
Application number: CN202122955849.2U
Authority: CN
Inventors: 陈晓燕; 安鹏
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-22
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a jig for detecting and identifying poor DIMM slots, which comprises a PCB (printed circuit board) and a bottom plate; through holes corresponding to pins of the DIMM slots are formed in the PCB and used for the DIMM slots to be inserted; the bottom plate is provided with a jack corresponding to the through hole, a telescopic probe is arranged in the jack, and the telescopic probe is connected in series with the indicating lamp through a wire. The utility model can quickly detect the kneeling foot defect of the DIMM slot, directly change materials, insert components again, avoid maintenance and replacement after welding, reduce the damage of the PCBA caused by maintenance and reduce the maintenance scrap of the PCBA.

Description

Tool for detecting and identifying poor slots of DIMM (dual inline memory module)

Technical Field

The utility model relates to the field of DIMM slot testing, in particular to a jig for detecting and identifying poor DIMM slots.

Background

In the server, the memory slot refers to a slot for inserting a memory bank on a motherboard, and the type and capacity of the memory supported by the motherboard are determined by a DIMM slot (memory slot). The DIMM slot has two production modes at present, one is an SMT patch, the other is a DIP plug-in, a DIMM Pin golden finger is a connecting part between the memory bank and the DIMM slot, all signals are transmitted through the golden finger, a conductive contact sheet on the golden finger is also commonly called as the Pin number (Pin), all data streams and electron streams of the memory processing unit are exchanged with a PC system through the contact of the golden finger and the DIMM slot and are output and input ports of the memory, and therefore the production process of the DIMM slot is quite important for the memory connection.

The process of the DIMM socket PTH (PLATED THROUGH HOLE) is an extremely important process, and the DIMM socket process is poor, causing poor functionality and failing to achieve the expected functional effect. Kneeling feet are difficult to detect in poor DIMM manufacturing process, 288 pins are arranged in 1 DIMM slot, 24 DIMM slots are arranged on one PCBA, 288 pins are required to be detected by personnel, and certain leakage can exist when the detection is completed within limited working time; the poor repair is the least easy to repair, once the poor repair is carried out, DIMM slots need to be replaced, one DIMM slot has 288 pins, the whole DIMM slot needs to be replaced as long as one Pin is poor, the replacement and repair needs a small tin furnace, the repair is not necessarily good in one-time performance maintenance, and under the serious condition, the PCBA is easily scrapped in the repair process; this bad production line test can not necessarily be completely stuck down, affecting the use of the client.

Disclosure of Invention

In order to solve the above problems, the present invention provides a fixture for detecting and identifying poor DIMM slots, so as to quickly identify the kneeling feet of the DIMM slots.

The technical scheme of the utility model is as follows: a tool for detecting and identifying poor slots of DIMM comprises a PCB and a bottom plate; through holes corresponding to pins of the DIMM slots are formed in the PCB and used for the DIMM slots to be inserted; the bottom plate is provided with a jack corresponding to the through hole, a telescopic probe is arranged in the jack, and the telescopic probe is connected in series with the indicating lamp through a wire.

Furthermore, a plurality of groups of through holes are formed in the PCB, a plurality of groups of jacks are formed in the bottom plate, and each group of jacks corresponds to one indicator light.

Further, at least two foot pads are arranged on the bottom plate to support the PCB.

Furthermore, four corners of the bottom plate are respectively provided with a foot pad.

Further, the device also comprises an indicator light bracket, and the indicator light is arranged on the indicator light bracket.

Further, the pilot lamp support includes horizontal support plate and inclined support plate, and horizontal support plate is connected with inclined support plate, and the pilot lamp setting is in inclined support plate.

The utility model provides a jig for detecting and identifying poor DIMM slots, which can quickly detect poor kneeling feet of the DIMM slots, directly replace materials, insert components again, avoid maintenance and replacement after welding, reduce the damage of PCBA caused by maintenance and reduce the maintenance scrap of PCBA products.

Drawings

FIG. 1 is a diagram illustrating a DIMM socket configuration according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a PCB structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of a bottom plate structure according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a combined structure according to an embodiment of the present invention.

In the figure, 1-DIMM slot, 2-PCB board, 21-through hole, 3-bottom board, 31-jack, 32-foot pad, 4-indicator light, 51-horizontal support board, 52-inclined support board.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.

The English terms to which the present invention relates are explained first:

PCBA, namely the whole process that the empty PCB passes through the SMT upper part or the DIP plug-in;

SMT: surface Mounted Technology Surface mount Technology;

DIP is Dual in-linePackage Dual inline packaging technology;

PCB Printed Circuit Board of Printed Circuit Board;

DIMM socket: and (5) memory slots.

As shown in fig. 1-4, the present embodiment provides a fixture for detecting and identifying a defective DIMM slot, which includes a PCB 2 and a backplane 3.

The PCB 2 is provided with through holes 21 corresponding to pins of the DIMM slot 1 for the DIMM slot 1 to be inserted. If the pins on the DIMM slot 1 are normal, all pins pass through the PCB 2; if the pins on the DIMM slot 1 are poor and kneeling feet occur, the kneeling feet cannot penetrate through the PCB 2.

The bottom plate 3 is provided with a jack 31 corresponding to the through hole 21, a telescopic probe is arranged in the jack 31, and the telescopic probe is connected in series with the indicator lamp 4 through a wire. In use, the DIMM socket 1 is inserted on the PCB 2, and the PCB 2 inserted with the DIMM socket 1 is placed above the bottom plate 3 before wave soldering. If pins of the DIMM slot 1 are all normal, the pins can be inserted into the jacks 31 through the PCB 2 and contact with the retractable probes, the retractable probe lines are conducted, and the indicator lights 4 are lighted. If the pins of the DIMM slot 1 are kneeling pins, the kneeling pins cannot penetrate through the PCB 2 and are inserted into the jack 31, the telescopic probes cannot be contacted, the telescopic probe lines are not conducted, the indicator lamp 4 is not on, and the fact that the DIMM slot 1 is bad is prompted to a tester. The fixture detects the DIMM slot 1 before welding, and can effectively avoid adverse consequences such as influence on use of a customer and the like caused by poor DIMM slot 1.

Preferably, a plurality of groups of through holes 21 are formed in the PCB 2, a plurality of groups of jacks 31 are formed in the bottom plate 3, each group of jacks 31 corresponds to one indicator light 4, simultaneous detection of a plurality of DIMM slots 1 is achieved, and detection efficiency is improved.

At least two foot pads 32 are provided on the base plate 3 to support the PCB board 2 for easy handling and manipulation, and preferably, one foot pad 32 is provided at each of four corners of the base plate 3.

This embodiment still sets up the pilot lamp support, and pilot lamp 4 sets up on the pilot lamp support to convenient observation. Specifically, the bracket for the indicator lamp 4 comprises a transverse support plate 51 and an inclined support plate 52, the transverse support plate 51 is connected with the inclined support plate 52, and the indicator lamp 4 is arranged on the inclined support plate 52 and can be observed conveniently.

The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A tool for detecting and identifying poor slots of DIMMs is characterized by comprising a PCB and a bottom plate; through holes corresponding to pins of the DIMM slots are formed in the PCB and used for the DIMM slots to be inserted; the bottom plate is provided with a jack corresponding to the through hole, a telescopic probe is arranged in the jack, and the telescopic probe is connected in series with the indicating lamp through a wire.

2. The tool of claim 1, wherein the PCB has a plurality of through holes, the bottom plate has a plurality of holes, and each hole corresponds to an indicator light.

3. The tool of claim 2, wherein at least two pads are disposed on the bottom plate for supporting the PCB.

4. The tool of claim 3, wherein a foot pad is disposed at each of the four corners of the bottom plate.

5. The apparatus as claimed in any one of claims 1 to 4, further comprising an indicator light bracket, wherein the indicator light is disposed on the indicator light bracket.

6. The tool of claim 5, wherein the indicator light bracket comprises a lateral support plate and an inclined support plate, the lateral support plate is connected to the inclined support plate, and the indicator light is disposed on the inclined support plate.