CN113540842A

CN113540842A - Debugging interface structure

Info

Publication number: CN113540842A
Application number: CN202110705131.XA
Authority: CN
Inventors: 金建平
Original assignee: Marelli Automotive Electronics Guangzhou Co Ltd
Current assignee: Marelli Automotive Electronics Guangzhou Co Ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-10-22

Abstract

The utility model provides a debugging interface structure, includes the PCB board to and surround the PCB board at inside casing, be provided with the holding tank on the back of casing, place pluggable connector main part in the holding tank, the interval is provided with a plurality of metal needles in the connector main part, the vertical connector main part that runs through of every metal needle, and its tail end and PCB board electricity are connected, all are connected with the signal line at the head of every metal needle. When the product is debugged, the metal needle is electrically connected with the debugging tool through the cooperation of the common signal line and the metal needle, so that the chip on the PCB is communicated with the debugging tool through signals, and the chip can be debugged to maintain the product. The debugging interface has a simple structure, so the production cost is low, the use of a special debugging interface and a special wiring harness on a mass-produced product is avoided, the production cost is greatly reduced, and the economic benefit is improved.

Description

Debugging interface structure

Technical Field

The invention relates to a debugging interface structure.

Background

Some electronic products are usually provided with debugging interfaces, which is convenient for technicians to debug chips on the product PCB. At present, a debugging interface welded on a PCB is usually a special debugging interface, and in a research and development stage, research and development personnel are usually communicated with a debugging tool after connecting a special wire harness through the debugging interface so as to debug a chip on the PCB and ensure the normal operation of a product; the developed products are then put into mass production. And the mass-produced products are all provided with special interfaces for debugging, so that after-sale technicians can debug and maintain the products through the special debugging interfaces when the products are maintained after sale. However, in practice, after the product is sold, few customers return the product and perform after-sale debugging maintenance, and the cost of the dedicated debugging interface is high, which results in high production cost and low economic benefit of the product.

Disclosure of Invention

The invention aims to provide a debugging interface structure which is simple in structure and low in cost, and economic benefits are improved.

The debugging interface structure comprises a PCB and a shell for enclosing the PCB inside, wherein an accommodating groove is formed in the back of the shell, a pluggable connector main body is placed in the accommodating groove, a plurality of metal pins are arranged on the connector main body at intervals, each metal pin vertically penetrates through the connector main body, the tail end of each metal pin is electrically connected with the PCB, and the head of each metal pin is connected with a signal wire.

When a product needs to be debugged, the debugging interface structure enables the metal pin to be electrically connected with a debugging tool through the matching of a common signal wire and the metal pin, further enables a chip on the PCB to be in signal communication with the debugging tool, and therefore the chip can be debugged to maintain the product. The debugging interface has a simple structure, so the production cost is low, the use of a special debugging interface and a special wiring harness on a mass-produced product is avoided, the production cost is greatly reduced, and the economic benefit is improved. In addition, because the connector main part adopts pluggable connection structure, therefore when needing to be changed special debugging interface, be convenient for demolish this simple and easy debugging interface structure, it is convenient to change.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is an exploded view of the present invention.

Fig. 3 is a schematic structural diagram of the main body of the connector of the present invention.

Fig. 4 is a schematic view of a connector main body disassembly structure of the invention.

FIG. 5 is a schematic diagram of the housing and PCB structure of the present invention.

Detailed Description

A debugging interface structure, as shown in fig. 1 to 3, comprises a PCB (printed circuit board) 1 and a shell 2 enclosing the PCB 1 inside, wherein a holding tank 3 is arranged on the back of the shell 2, a pluggable connector main body 4 is placed in the holding tank 3, a plurality of metal pins 5 are arranged on the connector main body 4 at intervals, each metal pin 5 vertically penetrates through the connector main body 4, the tail end of each metal pin is electrically connected with the PCB 1, and the head of each metal pin 5 is connected with a signal wire 6. When the product needs to be debugged, the metal needle 5 is electrically connected with the debugging tool 7 through the cooperation of the common signal wire 6 and the metal needle 5, so that the chip 8 on the PCB 1 is in signal communication with the debugging tool 7, and the chip 8 can be debugged to maintain the product. The debugging interface has a simple structure, so the production cost is low, the use of a special debugging interface and a special wiring harness on a mass-produced product is avoided, the production cost is greatly reduced, and the economic benefit is improved. The signal line 6 is commercially available. Holding tank 3 is applicable to the installation of special debugging interface equally, when needs adopt special debugging interface, can directly demolish the debugging interface in this application after, again with special debugging interface welded connection on the pad 9 on the PCB board 1 that holding tank 3 department corresponds can, the change is convenient. The number of the metal pins 5 is determined according to the number of the pads 9 on the PCB board 1, and there are five pads 9 on the PCB board 1 in the present embodiment, and accordingly there are five metal pins 5, as shown in fig. 5.

The metal needle 5 comprises a metal fixing seat 51, a metal movable needle head 52 capable of elastically moving back and forth along the length direction of the metal fixing seat 51 is arranged in the metal fixing seat 51, and the tail end of the metal movable needle head 52 is elastically and electrically connected with the bonding pad 9 on the PCB board 1. When the connector main body 4 is installed, because the metal needle 5 is elastically and electrically connected with the PCB board 1, the metal movable needle head 52 of the metal needle 5 can have a certain retreating stroke under the action of pressure, so that the metal needle 5 can be ensured to be in good contact with the PCB board 1 even if the position of the bonding pad 9 on the PCB board 1 is uneven, and the debugging and burning stability is effectively ensured.

A spring 53 is provided between the head of the metal movable needle 52 and the metal fixed seat 51, so that the metal movable needle 52 can perform reciprocating elastic movement.

Be provided with the screens shell fragment respectively in the both sides that connector main part 4 is relative, be provided with respectively on the back of casing 2 with the corresponding through-hole 10 of two screens shell fragments, the free end of every screens shell fragment stretches into in the through-hole 10 that corresponds and block in through-hole 10 department, thereby can fix connector main part 4 in holding tank 3, and when connector main part 4 is demolishd to needs, only need press the screens shell fragment, make the screens shell fragment break away from through-hole 10, can realize demolising of connector main part 4, through this kind to casing 2 and PCB board 1 connection structure that does not have the destructiveness, be convenient for change connector main part 4 or be convenient for change special debugging interface when having the demand.

The elasticity card includes sheetmetal body 11, is provided with the circular arc convex closure 12 that deviates from holding tank 3 on sheetmetal body 11's free end, inside circular arc convex closure 12 stretched into casing 2 by through-hole 10, when sheetmetal body 11 is in the natural state, circular arc convex closure 12 supported on casing 2 internal surface to ensure that connector main part 4 can obtain well fixed, and when connector main part 4 was extracted to needs, only need press sheetmetal body 11, make circular arc convex closure 12 skew certain distance, break away from casing 2 internal surface, can extract connector main part 4 smoothly, as shown in fig. 4.

Connector main part 4 is the type of protruding font, and its microcephaly one end inserts in holding tank 3, and major part one end is located outside holding tank 3, and the screens shell fragment is connected and is served at its macrocephaly. Connector main part 4 is the type of protruding font, can ensure to set up the screens shell fragment in its major part one end to joint connector main part 4, simultaneously, also avoid whole connector main part 4 to insert completely holding tank 3 in, ensure to be convenient for extract connector main part 4.

Be provided with spacing step 31 on the inside wall of holding tank 3, the tail end of the little head one end of connector main part 4 supports on spacing step 31. Through setting up spacing step 31, avoid connector main part 4 to insert holding tank 3 too deeply, also support the interact with the screens shell fragment on spacing step 31 through the tail end of the microcephaly one end of connector main part 4 simultaneously, further realize the firm connection of connector main part 4.

The corner of the tip one end of connector main part 4 and a corner in the holding tank 3 all are provided with prevents slow-witted plane 13, when connector main part 4 inserts in the holding tank 3, only when preventing slow-witted plane 13 on connector main part 4 and the inside prevent slow-witted plane 13 of holding tank 3 coincide, connector main part 4 could insert in the holding tank 3, otherwise then not go, with the direction accuracy of ensureing connector main part 4 male, guarantee that metal needle 5 correctly corresponds the contact with pad 9 on the PCB board 1.

Claims

1. The utility model provides a debugging interface structure, includes PCB board (1) to and surround PCB board (1) casing (2) inside, be provided with holding tank (3), its characterized in that on the back of casing (2): pluggable connector main bodies (4) are placed in the accommodating grooves (3), a plurality of metal pins (5) are arranged on the connector main bodies (4) at intervals, each metal pin (5) vertically penetrates through the connector main bodies (4), the tail ends of the metal pins are electrically connected with the PCB (1), and the head of each metal pin (5) is connected with a signal wire (6).

2. A debug interface architecture as claimed in claim 1, wherein: the metal needle (5) comprises a metal fixing seat (51), a metal movable needle head (52) capable of elastically moving back and forth along the length direction of the metal movable needle head is arranged inside the metal fixing seat (51), and the tail end of the metal movable needle head (52) is elastically and electrically connected with a bonding pad (9) on the PCB (1).

3. A debug interface architecture as claimed in claim 2, wherein: a spring (53) is arranged between the head of the metal movable needle (52) and the metal fixed seat (51).

4. A debug interface architecture according to any one of claims 1 to 3, wherein: the two opposite sides of the connector main body (4) are respectively provided with clamping elastic sheets, the back of the shell (2) is provided with through holes (10) corresponding to the two clamping elastic sheets, and the free end of each clamping elastic sheet extends into the corresponding through hole (10) and is clamped at the through hole (10), so that the connector main body (4) can be fixed in the accommodating groove (3).

5. A debug interface architecture as claimed in claim 4, wherein: the elastic card comprises a metal sheet body (11), wherein an arc convex hull (12) deviating from the accommodating groove (3) is arranged at the free end of the metal sheet body (11), the arc convex hull (12) extends into the shell (2) through a through hole (10), and when the metal sheet body (11) is in a natural state, the arc convex hull (12) is supported on the inner surface of the shell (2), so that the connector main body (4) can be fixed in the accommodating groove (3).

6. A debug interface architecture as claimed in claim 4, wherein: the connector main body (4) is in a convex shape, one end of a small end of the connector main body is inserted into the accommodating groove (3), one end of a large end of the connector main body is located outside the accommodating groove (3), and the clamping elastic sheet is connected to one end of the large end of the connector main body.

7. A debug interface architecture as claimed in claim 6, wherein: be provided with spacing step (31) on the inside wall of holding tank (3), the tail end of the microcephaly one end of connector main part (4) supports on spacing step (31).