CN220731907U

CN220731907U - Guide module of PCB connector, opposite-plug type inter-fit connector and electronic device

Info

Publication number: CN220731907U
Application number: CN202322464370.8U
Authority: CN
Inventors: 罗凡; 刘帅; 程兴贵; 何军
Original assignee: Sichuan Tenghua Zhikong Technology Co ltd
Current assignee: Sichuan Tenghua Zhikong Technology Co ltd
Priority date: 2023-09-11
Filing date: 2023-09-11
Publication date: 2024-04-05
Anticipated expiration: 2033-09-11

Abstract

The utility model discloses a guide module of a PCB connector, an opposite-plug type inter-fit connector and an electronic device, wherein the guide module comprises a guide pin, a pin bush and a guide reed, the guide pin, the pin bush and the guide reed are all metal products, the guide reed is of a tubular structure, the inner diameter of the guide reed is larger than the diameter of the guide pin, one end of the guide reed is provided with at least two interval gaps, the interval gaps divide the end into a plurality of fastening support legs, the other end of the guide reed is a cylinder, the middle area of the fastening support legs is recessed towards the axis of the guide reed to form a fastening section, the inner diameter of an area surrounded by the fastening section is equal to or smaller than the diameter of the guide pin, the guide reed is fixedly sleeved with the pin bush, and the inner diameter of the pin bush is matched with the outer diameter of the guide reed. Through changing the contact between the guide pin and the pin sleeve into the elastic connection of the guide pin and the fastening section of the fastening supporting leg of the guide reed, the contact area between the guide pin and the guide reed is reduced, and the risk of metal scraps generated by repeated pulling and inserting is reduced.

Description

Guide module of PCB connector, opposite-plug type inter-fit connector and electronic device

Technical Field

The utility model relates to the field of PCB connectors, in particular to a guide module of a PCB connector, a plug-in type inter-fit connector and an electronic device.

Background

PCB connectors are often used in the Printed Circuit Board (PCB) industry as connecting devices to connect and secure PCB boards. The board-to-board connector capable of connecting two PCBs is often used in the PCB cabinet machine with high-density arrangement, and the board-to-board connector has great advantages in manufacturing cost, expandability and disassembly operation.

However, such board-to-board connectors are not easy to align during the plugging and plugging, and the pin array is at risk of tilting during the operation, which is easy to plug and break the connector. Such connectors are therefore generally designed with guide modules which serve mainly for guiding and positioning the board-to-board connectors when they are plugged into one another.

The existing guide module only comprises a guide pin and a pin sleeve which are made of metal, and the guide and the positioning are realized through the connection of the guide pin and the pin sleeve. The guide pin is in surface contact with the pin bush and has large contact area, larger friction can occur between the guide pin and the pin bush when the guide pin is pulled out and inserted, metal scraps are easily generated when the guide pin is pulled out and inserted repeatedly, and if the metal scraps fall onto the PCB, the risk of causing short circuit of the PCB is caused.

Disclosure of Invention

The utility model aims to solve the problem that in the prior art, metal scraps are easy to generate when a guide module is repeatedly pulled out and plugged in for many times, and the metal scraps fall on a PCB to cause the risk of short circuit of the PCB, and provides a guide module of a PCB connector, a plug-in type inter-fit connector and an electronic device.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a PCB connector's direction module, includes guide pin, round pin cover and direction reed, the guide pin the round pin cover reaches the direction reed is metal product, the direction reed is tubular structure and its internal diameter is greater than the diameter of guide pin, two or more interval breach has been seted up to the one end of direction reed, interval breach divide into a plurality of fastening landing leg with this end, the other end of direction reed is the barrel, the middle region of fastening landing leg is to the axis of direction reed is sunken to form the fastening section, the regional internal diameter that the fastening section encloses is equal to or less than the diameter of guide pin, the fastening section presss from both sides tightly the guide pin, the direction reed external fixation cover is established the round pin cover, the internal diameter of round pin cover with the external diameter adaptation of direction reed.

The guide module of the PCB connector comprises guide pins, pin sleeves and guide reeds, wherein the guide pins, the pin sleeves and the guide reeds are all metal products, when a PCB board is connected by using the PCB connector with the guide modules, good grounding effect can be achieved through metal connection between the guide modules, the guide reeds are of tubular structures, the inner diameter of each guide reed is larger than the diameter of the guide pin, the guide pins can be inserted into the guide reeds, one end of each guide reed is provided with a spacing gap which is not smaller than two, the spacing gap divides the end into a plurality of fastening supporting legs, the spacing gap enables the fastening supporting legs to have a certain deformation allowance in the radial direction of the guide reed, the area surrounded by the fastening supporting legs can be expanded, the other end of each guide reed is a cylinder body, the middle area of each fastening supporting leg is recessed towards the axis of the guide reed to form a fastening section, the inner diameter of the area surrounded by the fastening section is equal to or smaller than the diameter of the guide pin, the inner diameter of each guide pin is matched with the guide sleeve, and the guide reed is contacted with one end of the guide sleeve, and the guide reed is fixed. According to the guide module of the PCB connector, the guide reed with the special structure is additionally arranged to convert the contact between the guide pin and the pin sleeve into the contact between the guide pin and the fastening section of the fastening supporting leg of the guide reed, so that the guide module not only can play a role in guiding and positioning when the PCB connector is inserted, but also can ensure smooth insertion; and be elastic connection between the guide pin with guide reed has still reduced the guide pin with guide reed's area of contact, and then reduces the friction between the two when pulling out the plug to can reduce repeatedly and pull out the risk of inserting and produce metal chip, guarantee the safety and stability of PCB board, can also increase pull out plug complex stability between the direction module, increase guide module's life.

As a preferred embodiment of the present utility model, the end of the fastening leg remote from the cylinder body is tilted away from the axis of the guide reed. Enlarging the opening of the guide reed facilitates insertion of the guide pin into the guide reed while also enhancing the connection between the guide reed and the pin bushing.

As a preferable scheme of the utility model, a plurality of fixed tilting feet are arranged on the wall surface of the cylinder body, and the fixed tilting feet tilt away from the axis of the guide reed. The fixed perk can strengthen the connection between the guide reed and the pin sleeve, and reduce the risk that the guide reed shakes to influence the opposite insertion of the guide pin when the guide pin passes through the fastening section.

As a preferable scheme of the utility model, the wall surface of the pin sleeve is provided with a fixing hole, the position of the fixing hole corresponds to the fixing tilted foot, and the fixing tilted foot can be inserted into the fixing hole. The connection between the guide reed and the pin sleeve can be further enhanced, and the risk of shaking the guide reed during the insertion of the guide pin is reduced.

As a preferable scheme of the utility model, a plurality of positioning bosses are arranged on the inner wall surface of the pin sleeve, and the number and the positions of the positioning bosses are corresponding to the interval gaps. The positioning bosses are respectively positioned in the interval gaps corresponding to the positioning bosses, so that positioning can be provided for the guide reed when the guide reed is plugged into the pin sleeve, the guide reed can be limited to roll in the pin sleeve, and the risk that the guide reed rolls to affect the opposite insertion of the guide pin is reduced.

As a preferable scheme of the utility model, the cylinder body is provided with through grooves penetrating through two ends along a bus, the through grooves are communicated with one of the interval gaps, and one of the positioning bosses stretches into the through grooves. The through groove enables the cylinder body to have certain elasticity, so that the guide reed is convenient to install in the pin sleeve; the through groove is communicated with one of the interval gaps, one of the positioning bosses stretches into the through groove, and the guide reed can be further limited to roll in the pin sleeve.

As a preferable scheme of the utility model, one ends of the positioning bosses far away from the interval notch are mutually connected to form a blocking boss. The blocking boss can limit the displacement of the guide reed in the axial direction, so that the risk that the guide reed generates axial displacement in the pin sleeve to influence the insertion of the guide pin is reduced.

As a preferable mode of the present utility model, the thickness of the positioning boss is equal to or smaller than the wall thickness of the guide reed. The guide pin is ensured to be only contacted with the fastening section of the fastening supporting leg, so that the possibility that the guide pin is contacted with other components of the guide module is reduced, and the risk of metal scraps generated by repeated pulling and inserting is reduced.

The utility model also discloses a plug-in type inter-fit connector, which comprises a plug-in matched male connector and a female connector, wherein the plug-in type inter-fit connector adopts the guide module of any one of the PCB connectors, the male connector is provided with at least one guide pin, and the female connector is correspondingly provided with the pin sleeve and the guide reed.

The guide module of the PCB connector can ensure smooth opposite insertion between the male connector and the female connector, reduce the risk of metal scraps generated by repeated pulling and inserting of the guide module of the male connector and the female connector, ensure safe and stable work of the PCB board and prolong the service life of the opposite insertion type inter-fit connector.

The utility model also discloses an electronic device which comprises two PCB boards connected by the opposite-plug type inter-fit connector, wherein one PCB board is fixedly arranged on the male connector, and the other PCB board is fixedly arranged on the female connector.

The electronic device comprises two PCB boards connected by the opposite-plug type inter-fit connector, so that the risk of short circuit caused by metal scraps generated by repeated plug-in of the PCB boards can be reduced, the PCB boards can safely and stably work, and the electronic equipment can have good working stability.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the guide module of the PCB connector, the guide reed with the special structure is additionally arranged to convert the contact between the guide pin and the pin sleeve into the contact between the guide pin and the fastening section of the fastening supporting leg of the guide reed, so that the guide module not only can play a role in guiding and positioning when the PCB connector is inserted, but also can ensure smooth insertion; and be elastic connection between the guide pin with guide reed has still reduced the guide pin with guide reed's area of contact, and then reduces the friction between the two when pulling out the plug to can reduce repeatedly and pull out the risk of inserting and produce metal chip, guarantee the safety and stability of PCB board, can also increase pull out plug complex stability between the direction module, increase guide module's life.

2. The guide module of the PCB connector can ensure smooth opposite insertion between the male connector and the female connector, reduce the risk of metal scraps generated by repeated pulling and inserting of the guide module of the male connector and the female connector, ensure safe and stable work of the PCB board and prolong the service life of the opposite insertion type inter-fit connector.

Drawings

Fig. 1 is a schematic structural view of a guide module of a PCB connector according to the present utility model;

fig. 2 is a side view of a guide module of a PCB connector of the present utility model;

FIG. 3 is a cross-sectional view taken along section A-A of FIG. 2;

figure 4 is a three-dimensional view of the guide reed of the present utility model;

figure 5 is a front view of the guide spring of the present utility model;

figure 6 is a right side view of the guide reed of the present utility model;

FIG. 7 is a schematic diagram showing the connection relationship between a guide pin and a guide reed according to the present utility model;

FIG. 8 is a schematic view of the internal structure of the pin sleeve of the present utility model;

FIG. 9 is a right side view of the pin sleeve of the present utility model;

FIG. 10 is a cross-sectional view of section B-B of FIG. 9;

fig. 11 is a schematic diagram showing the connection relationship between the pin bush and the guide reed.

Reference numerals in the drawings: the novel high-strength steel wire rope fixing device comprises a 1-guide pin, a 2-pin sleeve, a 21-fixing hole, a 22-positioning boss, a 23-blocking boss, a 3-guide reed, a 31-interval notch, a 32-fastening support leg, a 321-fastening section, a 33-barrel, a 34-fixing tilted foot, a 35-through groove, a 4-first PCB, a 5-second PCB, a 6-spring gasket, a 7-nut and an 8-fixing screw.

Detailed Description

The present utility model will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model.

Example 1

As shown in fig. 1-11, a guide module of a PCB connector comprises a guide pin 1, a pin bush 2 and a guide reed 3, wherein the guide pin 1, the pin bush 2 and the guide reed 3 are all made of metal, the guide reed 3 is of a tubular structure, the inner diameter of the guide reed 3 is larger than the diameter of the guide pin 1, the guide pin 1 can be inserted into the guide reed 3, one end of the guide reed 3 is provided with at least two interval gaps 31, the interval gaps 31 divide the end into a plurality of fastening legs 32, the interval gaps 31 enable the fastening legs 32 to have a certain deformation allowance in the radial direction of the guide reed 3, the area surrounded by the fastening legs 32 can be expanded, the other end of the guide reed 3 is a cylinder 33, the cylinder 33 connects the fastening legs 32, the middle area of the fastening legs 32 is recessed towards the axis of the guide reed 3 to form a fastening section 321, the inner diameter of the area surrounded by the fastening section 321 is equal to or smaller than the diameter of the guide pin 1, the fastening legs 321 is arranged at the end of the guide reed 3, the fastening legs 321 is smoothly contacted with the guide reed 3, and the guide reed 3 is smoothly inserted into the guide reed 3, and the guide reed 3 is contacted with the guide reed 2, and the guide reed 3 is smoothly inserted into the fastening section 321.

It will be appreciated by those skilled in the art that the guide pin 1, the pin bush 2 and the guide reed 3 are all made of metal, so that a good grounding effect can be achieved through metal connection between the guide modules when the PCB board is connected by using the PCB connector with the guide modules.

It will be appreciated by those skilled in the art that the guide pin 1 needs to be inserted into the guide reed 3 from the end of the guide reed 3 where the fastening leg 32 is provided.

As will be appreciated by those skilled in the art, the guide reed 3 has a tubular structure and an inner diameter larger than the diameter of the guide pin 1, the fastening section 321 encloses an area having an inner diameter equal to or smaller than the diameter of the guide pin 1, and when the guide pin 1 is inserted into the guide reed 3, the guide pin 1 is only in contact with the fastening section 321 of the guide reed 3, in such a manner that the contact area between the guide pin 1 and the guide reed 3 can be effectively reduced as compared to when the guide pin is directly in contact with the pin; the gap 31 also serves to reduce the contact area between the guide pin 1 and the guide spring 3.

As will be appreciated by those skilled in the art, the gap 31 allows the fastening leg 32 to have a certain deformation margin in the radial direction of the guide reed 3, and the guide pin 1 and the guide reed 3 are elastically connected, so that friction between the guide pin 1 and the guide reed 3 can be reduced.

As will be appreciated by those skilled in the art, the fastening section 321 may clamp the guide pin 1, which may increase the stability of the plug-in fit between the guide modules.

According to the guide module of the PCB connector, the guide reed 3 with a special structure is additionally arranged to convert the contact between the guide pin 1 and the pin sleeve 2 into the contact between the guide pin 1 and the fastening section 321 of the fastening leg 32 of the guide reed 3, so that the guide module not only can play a role in guiding and positioning when the PCB connector is inserted, but also can ensure smooth insertion; and be elastic connection between guide pin 1 with guide reed 3 has still reduced guide pin 1 with guide reed 3's area of contact, and then reduces the friction between the two when pulling out the plug to can reduce and pull out the risk of producing metal chip repeatedly, guarantee the safety and stability of PCB board, can also increase pull out plug complex stability between the direction module increases the life of direction module.

Example 2

As shown in fig. 1 to 11, based on embodiment 1, the present embodiment is further optimally designed, specifically, in this embodiment, four spacing gaps 31 are formed in the guide reed 3, one end of the guide reed 3 is divided into four fastening legs 32 by the spacing gaps 31, which is convenient for processing and can ensure that the fastening legs 32 have good elastic performance, an inner diameter of an area surrounded by the fastening section 321 is smaller than a diameter of the guide pin 1, and the fastening section 321 can clamp the guide pin 1.

Further, the fastening leg 32 is tilted away from the axis of the guide spring 3 at the end far away from the cylinder 33, so that the opening of the guide spring 3 can be enlarged, the guide pin 1 can be conveniently inserted into the guide spring 3, and the connection between the guide spring 3 and the pin bush 2 can be enhanced. Chamfering is carried out on the tilted end, so that the tilted section can be well contacted with the inner wall of the pin bush 2.

As will be appreciated by those skilled in the art, the inner diameter of the pin bush 2 is adapted to the outer diameter of the guide reed 3, and if the end of the fastening leg 32 remote from the cylinder 33 is tilted away from the axis of the guide reed 3, the tilted end will abut against the inner wall of the pin bush 2, so that the connection between the guide reed 3 and the pin bush 2 can be enhanced.

Further, a plurality of fixing tilting feet 34 are formed on the wall surface of the cylinder 33, and the fixing tilting feet 34 tilt away from the axis of the guide reed 3. The fixing tilted foot 34 can enhance the connection between the guide reed 3 and the pin bush 2, so as to reduce the risk that the guide reed 3 shakes to affect the insertion of the guide pin 1 when the guide pin 1 passes through the fastening section 321. Specifically, in this embodiment, two fixing pins 34 are symmetrically disposed on the wall surface of the barrel 33.

As will be appreciated by those skilled in the art, the fixing raised leg 34 is a raised outer protruding member, which mainly plays a role in fixing, and mainly corresponds to the axial shake of the guide reed 3 when the guide pin 1 passes through the fastening section 321; the guide pin 1 needs to be inserted into the guide reed 3 from the end of the guide reed 3, where the fastening leg 32 is provided, in this embodiment, the end of the fixing tilted foot 34, which is close to the fastening leg 32, is connected with the cylinder 33, and the end of the fixing tilted foot 34, which is far away from the fastening leg 32, is tilted, so that the guide reed 3 can be better prevented from swinging in the axial direction when the guide pin 1 passes through the fastening section 321.

As will be appreciated by those skilled in the art, the fixing rib 34 has a certain elastic margin in the radial direction of the guide reed 3, and when the guide reed 3 is mounted, the fixing rib 34 is pressed until it is fitted into the rear of the pin bush 2 and is released.

Further, the wall surface of the pin bush 2 is provided with a fixing hole 21, the position of the fixing hole 21 corresponds to the fixing tilted foot 34, and the fixing tilted foot 34 can be inserted into the fixing hole 21. The fixing tilted pins 34 can be inserted into the fixing holes 21, so that the connection between the guide reed 3 and the pin sleeve 2 can be further enhanced, and the risk of shaking the guide reed 3 during insertion of the guide pin 1 is reduced. Specifically, in this embodiment, two fixing holes 21 are symmetrically formed on the wall surface of the pin bush 2.

Further, a plurality of positioning bosses 22 are provided on the inner wall surface of the pin bush 2, and the number and positions of the positioning bosses 22 correspond to the spacing gaps 31. The positioning bosses 22 are respectively positioned in the corresponding interval gaps 31, so that positioning can be provided for the guide reed 3 when the guide reed 3 is plugged into the pin sleeve 2, the guide reed 3 can be limited to roll in the pin sleeve 2, and the risk that the guide reed 3 rolls to influence the insertion of the guide pin 1 is reduced. Specifically, in this embodiment, four positioning bosses 22 are disposed on the inner wall surface of the pin bush 2.

Further, the cylinder 33 is provided with through grooves 35 penetrating through both ends along the bus, the through grooves 35 are communicated with one of the spacing gaps 31, and the positioning boss 22 in the spacing gap 31 extends into the through grooves 35. The through groove 35 enables the barrel 33 to have certain elasticity, so that the guide reed 3 is convenient to install in the pin sleeve 2; the through groove 35 is communicated with one of the interval gaps 31, and the positioning boss 22 in the interval gap 31 stretches into the through groove 35, so that the guide reed 3 can be further limited to roll in the pin sleeve 2.

Further, the ends of the positioning bosses 22 away from the spacing notches 31 are connected to each other to form blocking bosses 23. The blocking boss 23 can limit the displacement of the guide reed 3 in the axial direction, so that the risk that the guide reed 3 is axially displaced in the pin sleeve 2 to influence the insertion of the guide pin 1 is reduced.

Further, the thickness of the positioning boss 22 is equal to or smaller than the wall thickness of the guide reed 3. Ensuring that the guide pin 1 is only in contact with the fastening section 321 of the fastening leg 32 reduces the likelihood of the guide pin 1 coming into contact with other components of the guide module, thereby reducing the risk of metal chips being generated by repeated pulling-out.

Example 3

As shown in fig. 1-3, a mating type of mating connector includes a male connector and a female connector, the mating type of mating connector employs a guide module of a PCB connector as described in embodiment 2, the male connector is provided with at least one guide pin 1, and the female connector is correspondingly provided with a pin sleeve 2 and a guide reed 3. Specifically, in this embodiment, the male connector and the female connector are fastened by using a screw connection manner, as shown in fig. 3, the first PCB 4 is connected with the male connector through the guide pin 1, the spring washer 6 and the nut 7, and the second PCB 5 is connected with the female connector through the fixing screw 8.

Example 4

As shown in fig. 1-3, an electronic device includes two PCB boards connected by a mating connector as described in embodiment 3, one PCB board is fixedly disposed on the male connector, and the other PCB board is fixedly disposed on the female connector. Specifically, in this embodiment, the first PCB 4 is connected to the male connector through a guide pin 1, a spring washer 6, and a nut 7, and the second PCB 5 is connected to the female connector through a fixing screw 8.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. The utility model provides a direction module of PCB connector, its characterized in that, including guide pin (1), spacer bush (2) and direction reed (3), guide pin (1) the spacer bush (2) and direction reed (3) are metal products, direction reed (3) are tubular structure and its internal diameter is greater than the diameter of guide pin (1), spacing breach (31) no less than two have been seted up to one end of direction reed (3), spacing breach (31) divide into a plurality of fastening landing leg (32) with this end, the other end of direction reed (3) is barrel (33), the middle zone of fastening landing leg (32) to the axis of direction reed (3) is sunken to form fastening section (321), the regional internal diameter that fastening section (321) encloses is equal to or less than the diameter of guide pin (1), fastening section (321) presss from both sides tightly guide pin (1), guide reed (3) are outer fixed the cover and are established the spacer bush (2), the external diameter of pin bush (2) with the external diameter of direction reed (3).

2. A guide module for a PCB connector according to claim 1, characterized in that the end of the fastening leg (32) remote from the barrel (33) is tilted away from the axis of the guide reed (3).

3. The guide module of a PCB connector according to claim 1, wherein a plurality of fixing pins (34) are provided on the wall of the barrel (33), and the fixing pins (34) tilt away from the axis of the guide reed (3).

4. A guide module of a PCB connector according to claim 3, characterized in that the wall surface of the pin sleeve (2) is provided with a fixing hole (21), the position of the fixing hole (21) corresponds to the fixing pin (34), and the fixing pin (34) can be inserted into the fixing hole (21).

5. A guide module of a PCB connector according to any one of claims 1-4, wherein the inner wall surface of the pin sleeve (2) is provided with a plurality of positioning bosses (22), and the number and positions of the positioning bosses (22) correspond to the spacing notches (31).

6. A guide module of a PCB connector according to claim 5, characterized in that the barrel (33) is provided with through slots (35) extending through both ends along the bus bar, the through slots (35) being in communication with one of the spacing notches (31), the positioning bosses (22) in the spacing notches (31) extending into the through slots (35).

7. A guide module for a PCB connector according to claim 5, characterized in that the ends of the positioning bosses (22) remote from the spacing notches (31) are interconnected to form blocking bosses (23).

8. A guide module of a PCB connector according to claim 5, characterized in that the thickness of the positioning boss (22) is equal to or smaller than the wall thickness of the guide reed (3).

9. The opposite-plug type inter-fit connector comprises a male connector and a female connector which are in plug-in fit, and is characterized in that the opposite-plug type inter-fit connector adopts the guide module of the PCB connector according to any one of claims 1-8, the male connector is provided with at least one guide pin (1), and the female connector is correspondingly provided with the pin bush (2) and the guide reed (3).

10. An electronic device comprising two PCB boards connected by a mating connector according to claim 9, one PCB board being fixedly mounted on the male connector and the other PCB board being fixedly mounted on the female connector.