CN216671957U

CN216671957U - Connecting device used between test jig and mobile phone screen

Info

Publication number: CN216671957U
Application number: CN202220097278.5U
Authority: CN
Inventors: 刘家伟; 万波; 冯晨; 傅利民
Original assignee: Zhejiang Paidaxin Integrated Circuit Co ltd
Current assignee: Zhejiang Paidaxin Integrated Circuit Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-03
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a connecting device used between a testing jig and a mobile phone screen, which comprises a connector, an MIPI testing jig and a screen, wherein the connector comprises a PCB (printed Circuit Board), a plurality of resistors welded on the PCB, an impedance adjusting device connected with each resistor in series, a male seat welded at one end of the PCB and a female seat welded at the other end of the PCB, the output end of the MIPI testing jig is inserted and electrically connected with the male seat, and the input end of the screen is inserted and electrically connected with the female seat. The connector is arranged between the MIPI test rack and the screen, so that the MIPI test rack can be used for connecting a high-speed MIPI interface between the test rack and the mobile phone screen, simultaneously the impedance of two ends can be adjusted, the connection length of the connector is controllable, and the signal quality is good; a resistor and an impedance adjusting device are added on the channel for adjustment, so that the impedance between the measuring frame and the screen can be matched; the connection of the MIPI test frame and the screen is convenient, and the time is saved.

Description

Connecting device used between test frame and mobile phone screen

Technical Field

The utility model relates to the technical field of circuit testing, in particular to a connecting device used between a testing frame and a mobile phone screen.

Background

The MIPI signal between the traditional test rack and the mobile phone screen is an LVDS high-speed serial signal, and comprises 4 pairs of high-speed data channels and a pair of high-speed clock channels, and 10 signal lines in total. Under normal conditions, the test jig is in signal connection with a mobile phone screen in a flying mode. In the actual test process, the introduced test line can influence signals, interference can be introduced to the signals from the test frame to the screen, and the test function is influenced. To this end, we have designed an FPC connector to eliminate this effect. A connecting device for a test jig and a mobile phone screen is provided.

Disclosure of Invention

The utility model provides a connecting device used between a test frame and a mobile phone screen, which is used for connecting a high-speed MIPI interface between the test frame and the mobile phone screen, and meanwhile, resistors are connected in series on a connecting path, so that the impedance at two ends can be adjusted. On the premise of not changing the signal of the test frame, the MIPI interface probe can be used for conveniently grabbing and debugging the signal, and the debugging process of the test frame point screen can be greatly accelerated.

In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme: the utility model provides a connecting device for between test jig and cell-phone screen, includes connector, MIPI test jig and screen, the connector includes PCB board, welding and is in a plurality of resistance on the PCB board, with every impedance adjustment device, the welding of resistance series connection are installed public seat and the welded mounting of PCB board one end are in the female seat of the PCB board other end, the output of MIPI test jig is pegged graft and electric connection public seat, the input of screen is pegged graft and electric connection female seat.

Preferably, in the connection device used between the test rack and the mobile phone screen, the resistor is set in model of 0201 chip resistor, and the number of the resistor and the number of the impedance adjusting devices are both 60.

Based on the above, the resistor is electrically connected with the impedance adjusting device, so that the impedance at two ends of the resistor can be adjusted.

Preferably, in the connecting device for connecting between test jig and cell-phone screen, public seat and female seat all adopt the setting of MIPI interface.

Based on the above, the interface types of the male seat and the female seat are reasonably set.

Preferably, in the connection device for connecting between the test jig and the mobile phone screen, the resistors and the impedance adjusting devices are arranged on the PCB in a bilateral symmetry manner by taking the central axis of the PCB as a symmetry axis.

Based on the above, the resistor and the impedance adjusting device are reasonably designed on the PCB, are reasonably arranged in space and are convenient for surface mount type installation.

Preferably, in the above connecting device for use between the test jig and the mobile phone screen, the male socket and the female socket are arranged on the PCB board in opposite directions.

Based on the above, public seat and female seat set up rationally, are convenient for peg graft.

The utility model has the beneficial effects that: the utility model can be used for the connection of a high-speed MIPI interface between the testing frame and the mobile phone screen by arranging the connector between the MIPI testing frame and the screen, and meanwhile, the resistor is connected in series on the connecting path, so that the impedance at two ends can be adjusted, the signals can be conveniently grabbed and debugged by using the MIPI interface probe on the premise of not changing the signals of the testing frame, and the debugging process of the point screen of the testing frame can be greatly accelerated. In summary, the connector has controllable connection length and good signal quality; a resistor and an impedance adjusting device are added on the channel for adjustment, so that the impedance between the measuring frame and the screen can be matched; the connection of the MIPI test frame and the screen is convenient, the process of repeated welding and debugging is omitted, and the time is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a system architecture framework of the adapter of the present invention;

FIG. 2 is a schematic structural diagram of the adapter of the present invention;

fig. 3 is a PCB diagram of the converter of the present invention.

Reference numbers in the figures: 10. a connector; 101. a PCB board; 102. a resistance; 103. an impedance adjusting device; 104. a male seat; 105. a female seat; 20. an MIPI test frame; 30. and (6) a screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, the present embodiment is a connection device for a test rack and a mobile phone screen, including a connector 10, a MIPI test rack 20 and a screen 30, where the connector 10 includes a PCB 101, a plurality of resistors 102 welded on the PCB 101, an impedance adjusting device 103 connected in series with each resistor 102, a male socket 104 welded on one end of the PCB 101 and a female socket 105 welded on the other end of the PCB 101, an output end of the MIPI test rack 20 is inserted into and electrically connected to the male socket 104, and an input end of the screen 30 is inserted into and electrically connected to the female socket 105.

The specific resistor 102 and the impedance adjusting device 103 in this embodiment are as follows, the resistor 102 is set in a 0201 chip resistor type, or in-line resistor setting, the number of the resistor 102 and the impedance adjusting device 103 is 60, and the resistor 102 and the impedance adjusting device 103 are electrically connected to adjust the impedance at two ends of the resistor 102.

Further, the resistor 102 and the impedance adjusting device 103 are arranged on the PCB 101 in a bilateral symmetry manner by taking the central axis of the PCB 101 as a symmetry axis, and the resistor 102 and the impedance adjusting device 103 are reasonably designed on the PCB 101, reasonably arranged in space and convenient to install.

The male socket 104 and the female socket 105 of this embodiment both adopt MIPI interface settings, and the interface types of the male socket 104 and the female socket 105 are set reasonably. Meanwhile, the male seat 104 and the female seat 105 are arranged on the PCB 101 in opposite surfaces, and the male seat 104 and the female seat 105 are arranged reasonably and are convenient to insert.

When the specific implementation of the utility model is used, the output end of the MIPI test rack 20 is plugged and electrically connected with the male seat 104, the input end of the screen 30 is plugged and electrically connected with the female seat 105, and when the connector 10 works, the resistor 102 is connected in series between the male seat 104 and the female seat 105 on the PCB 101 for connection, on the premise of not changing the test rack signal, the MIPI interface probe can be used for conveniently grabbing and debugging the signal, and meanwhile, if the impedance of a certain path is unmatched, the impedance of the resistor 102 on the path can be adjusted through the impedance adjusting device 103 for matching, so that the impedance at two ends of the resistor 102 on the path can be adjusted, on the premise of not changing the test rack signal, the MIPI interface probe can be used for conveniently grabbing and debugging the signal, and the debugging process of the test rack point screen can be greatly accelerated.

In summary, the connector is arranged between the MIPI test rack and the screen, so that the connection of the high-speed MIPI interface between the test rack and the mobile phone screen can be realized, the resistor is connected in series on the connection path, the impedance at two ends can be adjusted, the MIPI interface probe can be used for conveniently grabbing and debugging signals on the premise of not changing the test rack signals, and the debugging process of the dot screen of the test rack can be greatly accelerated. In summary, the connector has controllable connection length and good signal quality; a resistor and an impedance adjusting device are added on the channel for adjustment, so that the impedance between the measuring frame and the screen can be matched; the connection of the MIPI test frame and the screen is convenient, the process of repeated welding and debugging is omitted, and the time is saved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A connecting device used between a test rack and a mobile phone screen is characterized by comprising a connector (10), an MIPI test rack (20) and a screen (30); connector (10) include PCB board (101), set up and be in a plurality of resistance (102) on PCB board (101), with every impedance adjusting device (103) that resistance (102) establish ties, install public seat (104) and the welded mounting of PCB board (101) one end are in female seat (105) of PCB board (101) the other end, the output of MIPI test jig (20) is pegged graft and electric connection public seat (104), the input of screen (30) is pegged graft and electric connection female seat (105).

2. The connecting device for the test jig and the mobile phone screen as claimed in claim 1, wherein the resistor (102) is in 0201 patch type or direct insertion type resistor type setting, and the number of the resistor (102) and the number of the impedance adjusting device (103) are both 60.

3. The connection device for the test rack and the mobile phone screen as claimed in claim 1, wherein the male socket (104) and the female socket (105) are both provided with MIPI interfaces.

4. The connecting device for the test jig and the mobile phone screen as claimed in claim 2, wherein the resistor (102) and the impedance adjusting device (103) are arranged on the PCB (101) in a left-right symmetrical manner by taking a central axis of the PCB (101) as a symmetry axis.

5. A device for connection between a test rack and a cell phone screen according to claim 1 or 3, wherein the male (104) and female (105) seats are provided on the PCB board (101) in opposing planes.