PCB (Printed Circuit Board) for enhancing communication signal and connector assembling and connecting structure
By designing a surface-shaped contact structure and welding-free connection method on the connector, the problems of poor conductivity and complex process of traditional connectors are solved, and more efficient communication signal transmission and simplified assembly process are achieved.
Patent Information
- Application Number
- CN202420768132.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The dot-shaped contact method of traditional connectors leads to poor conductivity, and the connection process is complex and time-consuming, affecting production efficiency.
Design a PCB board and connector assembly connection structure that enhances communication signals. By setting a plurality of lower connecting protrusions on the lower connector and an upper connecting groove on the upper connector, the lower connecting surface and the upper connecting surface are formed in a surface shape. Contact, increase the contact area, and open a connecting hole on the PCB board to facilitate insertion of the lower terminal pin, so as to achieve surface contact and solder-free connection.
Improves conduction performance, reduces metal fatigue, simplifies connection processes, and improves production efficiency and assembly convenience.
Smart Images
Figure CN222214523U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connectors, in particular to a PCB board and connector assembly connection structure for enhancing communication signals. Background Art
[0002] With the rapid development of electronic technology, connectors used to connect circuit boards and transmit signals have become an indispensable component of electronic equipment. Connectors are generally divided into upper connectors and lower connectors that are plugged in and matched with each other, that is, upper and lower connectors that are matched and connected to each other. The connection terminals on the traditional upper connector and the connection terminals on the lower connector are usually in point contact, and this connection method has poor conductivity.
[0003] In view of the above, a PCB (printed circuit board) board and connector assembly connection structure capable of enhancing communication signals is proposed. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a PCB board and connector assembly connection structure for enhancing communication signals.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] A PCB board and connector assembly connection structure for enhancing communication signals, comprising: a PCB board, an upper connector and a lower connector, wherein the PCB board is provided with an installation area; the lower connector is arranged on the installation area, the lower connector comprises a lower connection terminal, the lower connection terminal is provided with a plurality of lower connection protrusions, and the surface of each lower connection protrusion is provided with a lower connection surface; the upper connector comprises an upper connection terminal, the upper connection terminal is provided with a plurality of upper connection grooves, and each upper connection groove is provided with an upper connection surface, and when the lower connector is buckled and connected with the upper connector, each lower connection protrusion is respectively accommodated in the upper connection groove so that the lower connection surface is abutted against the upper connection surface.
[0007] In one embodiment, each of the lower connecting protrusions is provided with an avoidance hole and an opening, and the opening is connected to the avoidance hole, so that the lower connecting protrusion forms a "fish hook"-shaped structure.
[0008] In one embodiment, the lower connecting terminal is respectively provided with a first lower connecting protrusion, a second lower connecting protrusion and a third lower connecting protrusion, the first lower connecting protrusion and the third lower connecting protrusion are respectively located on both sides of the second lower connecting protrusion, and the second lower connecting protrusion is respectively arranged at a height higher than the first lower connecting protrusion and the third lower connecting protrusion.
[0009] In one of the embodiments, a plurality of lower terminal pins are further provided at one end of the lower connecting terminal away from the lower connecting protrusion, a plurality of connecting holes are opened on the PCB board, each of the connecting holes is respectively located on the mounting area, and each of the lower terminal pins is respectively inserted into each of the connecting holes.
[0010] In one embodiment, each of the lower terminal pins is provided with an avoidance groove so as to divide the lower terminal pin into a first elastic plug-in portion and a second elastic plug-in portion.
[0011] In one of the embodiments, a plug connector is provided on one end of the lower terminal pin facing the PCB board, and a guiding inclined surface is provided on one end of the plug connector facing the PCB board.
[0012] In one embodiment, the lower connector also includes a lower shell, a first accommodating cavity is opened on the lower shell, the lower connecting terminal is arranged in the first accommodating cavity, and the lower terminal pin passes through the bottom of the first accommodating cavity so that the lower terminal pin is located outside the lower shell.
[0013] In one embodiment, the upper connector also includes an upper shell, a second accommodating cavity is opened on the upper shell, the upper connecting terminal is arranged in the second accommodating cavity, and a limiting card block is provided on the outer wall of the lower shell, and a limiting card hole is opened on the outer wall of the upper shell, and when the upper connector is snap-fitted and connected with the lower connector, the limiting card block is accommodated in the limiting card hole.
[0014] In one of the embodiments, when the upper connector does not form a snap-fit connection with the lower connector, the limiting block and the limiting hole form an offset of a preset height.
[0015] In one embodiment, the preset height is 0.1 mm.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] 1. The utility model provides a PCB board and connector assembly connection structure for enhancing communication signals by arranging a lower connection terminal on the lower connector, and arranging a lower connection protrusion on the lower connection terminal, and arranging a lower connection surface on the surface of the lower connection protrusion; similarly, an upper connection terminal is arranged on the upper connector matching the lower connector, and an upper connection groove is provided on the upper connection terminal, and an upper connection surface is arranged on the upper connection groove, so that when the lower connector is buckled and connected with the upper connector, the lower connection surface and the upper connection surface form a planar contact, so that the contact area between the lower connector and the upper connector can be increased, and the conduction performance can be improved, that is, the communication signal can be further enhanced.
[0018] 2. The utility model of the PCB board and connector assembly connection structure for enhancing communication signals realizes the connection between the PCB board and the lower connector by opening a connection hole on the PCB board, and setting a lower terminal pin for plug-in on the lower connection terminal, and inserting the lower terminal pin into the connection hole. In this way, compared with the existing method of connecting only by soldering, it can not only save a welding process of the PCB board and the lower connector, but also make the plug-in assembly more convenient, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0020] Figure 1 It is a schematic diagram of an exploded structure of a PCB board and a connector assembly connection structure for enhancing communication signals in one embodiment of the utility model;
[0021] Figure 2 for Figure 1 A schematic diagram of the assembly structure of the lower connecting terminal and the upper connecting terminal of the PCB board and the connector assembly connection structure for enhancing the communication signal;
[0022] Figure 3 for Figure 2 A schematic diagram of the structure of the lower connecting terminal in FIG.
[0023] Figure 4 for Figure 2 A schematic diagram of the structure of the upper connecting terminal in FIG.
[0024] Figure 5 for Figure 1 A schematic diagram of the structure of the lower connector of the PCB board and the connector assembly connection structure for enhancing the communication signal;
[0025] Figure 6 for Figure 1 A schematic diagram of the structure of the upper connector of the PCB board and connector assembly connection structure for enhancing communication signals. DETAILED DESCRIPTION
[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.
[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a PCB board and connector assembly connection structure 10 for enhancing communication signals includes: a PCB board 100, a lower connector 200 and an upper connector 300, wherein the PCB board 100 is provided with a mounting area; the lower connector 200 is arranged on the mounting area, the lower connector 200 includes a lower connection terminal 210, the lower connection terminal 210 is provided with a plurality of lower connection protrusions 211, and the surface of each lower connection protrusion 211 is provided with a lower connection surface 211a; the upper connector 300 includes an upper connection terminal 310, the upper connection terminal 310 is provided with a plurality of upper connection grooves 311, and each upper connection groove 311 is provided with an upper connection surface 311a, when the lower connector 200 and the upper connector 300 are buckled and connected, each lower connection protrusion 211 is respectively accommodated in the upper connection groove 311, so that the lower connection surface 211a and the upper connection surface 311a are abutted against each other.
[0028] It should be noted that the contact points of the connection terminals in the conventional upper and lower connectors are all point contacts rather than surface contacts, so the conductivity is usually poor. In the present utility model, a lower connection protrusion 211 is provided on the lower connection terminal 210 of the lower connector 200, and a lower contact surface 211a is provided on the lower connection protrusion 211. Correspondingly, an upper connection groove 311 is provided on the upper connection terminal 310 of the upper connector 300, and an upper connection surface 311a is provided on the upper connection groove 311. Then, when the lower connector 200 and the upper connector 300 form a snap-fit connection, the lower contact surface 211a on the lower connection protrusion 211 can be brought into contact and conduction with the upper contact surface 311a on the upper connection groove 311, that is, a surface contact is formed, thereby increasing the contact area between the lower connection terminal 210 and the upper connection terminal 310, thereby improving the conductivity, and further making the communication signal and the transmission current better. At the same time, it should also be noted that the contact parts on the connecting terminals of traditional connectors are all point contacts, and the shape design is easy to cause metal fatigue. However, in this embodiment, since the connection method of the present application is surface contact, the contact area is larger, then the metal fatigue caused by long-term hard contact can be reduced, thereby increasing the service life of the connector.
[0029] Furthermore, it should be noted that a plurality of lower connection terminals 210 are provided, and the lower connection terminals 210 are distributed in an array. Similarly, a plurality of upper connection terminals 310 are provided, and the upper connection terminals 310 are distributed in an array.
[0030] In one embodiment, each lower connection protrusion 211 is provided with an avoidance hole 211b and an opening 211c, and the opening 211c is connected to the avoidance hole 211b, so that the lower connection protrusion 211 forms a "fishhook" structure. In this way, the lower connection protrusion 211 can form an elastic structure. When the upper connection terminal 310 squeezes the lower connection terminal, the lower connection protrusion 211 is compressed. At this time, not only will the lower connection protrusion 211 not be squeezed and damaged, but after the lower connection protrusion 211 rebounds, it can also ensure that the contact between the lower connection protrusion 211 and the upper connection groove 311 is tighter, thereby improving conductivity. It should also be noted that the lower connection surface 211a is an arc-shaped structure, and correspondingly, the upper connection surface 311a is also an arc-shaped structure. In this way, the contact area can be further increased, thereby further improving conductivity.
[0031] Furthermore, the lower connection terminal 210 is provided with a first lower connection protrusion, a second lower connection protrusion and a third lower connection protrusion, respectively, the first lower connection protrusion and the third lower connection protrusion are respectively located on both sides of the second lower connection protrusion, and the second lower connection protrusion is respectively provided at a higher height than the first lower connection protrusion and the third lower connection protrusion. In this way, it is not only convenient for plugging, but also can ensure the accuracy of the plugging position. Similarly, the upper connection terminal 310 is also provided with a first upper connection groove, a second upper connection groove and a third upper connection groove, respectively corresponding to and matching the first lower connection protrusion, the second lower connection protrusion and the third lower connection protrusion. In this way, the contact area can be increased, thereby further improving the conductivity.
[0032] In one embodiment, a plurality of lower terminal pins 212 are further provided at one end of the lower connection terminal 210 away from the lower connection protrusion 211, and a plurality of connection holes 110 are provided on the PCB board 100, each connection hole 110 is respectively located on the installation area, and each lower terminal pin 212 is respectively penetrated in each connection hole 110. A metal contact is provided on the inner side wall of the connection hole 110, and the lower terminal pin 212 is inserted into the connection hole 110 and is in close contact with the metal contact on the inner side wall of the connection hole 110, thereby conducting the signal wiring of the PCB board. In this way, compared with the existing method of connecting the PCB board 100 and the lower connector 200 by welding, in this embodiment, a welding-free connection between the PCB board and the lower connector 200 can be achieved, thereby saving a welding process of the PCB board and the connector, and at the same time, it can make the assembly and plugging more convenient to improve the production efficiency.
[0033] Furthermore, in order to improve the convenience of plugging, each lower terminal leg 212 is provided with an avoidance groove 212a, so that the lower terminal leg 212 is divided into a first elastic plug-in portion 212b and a second elastic plug-in portion 212c. When the lower terminal pin 212 is not installed in the connecting hole 110, the diameter of the lower terminal pin 212 formed by the first elastic plug-in portion 212b and the second elastic plug-in portion 212c is larger than the diameter of the connecting hole 110, for example, 0.05mm larger; when the lower terminal pin 212 is installed in the connecting hole 110 by extrusion, the first elastic plug-in portion 212b and the second elastic plug-in portion 212c are close to each other, so that the space size of the avoidance groove 212a is reduced, that is, the diameter of the lower terminal pin 212 is reduced, so that the lower terminal pin 212 can be smoothly squeezed into the connecting hole 110, and then due to the rebound of the first elastic plug-in portion 212b and the second elastic plug-in portion 212c, the first elastic plug-in portion 212b and the second elastic plug-in portion 212c are in close contact with the metal contacts on the connecting hole 110, thereby conducting the signal wiring of the PCB board.
[0034] Furthermore, a plug connector is provided on one end of the lower terminal pin 212 facing the PCB board 100, and a guide inclined surface 212d is provided on one end of the plug connector facing the PCB board 100. The guide inclined surface 212d facilitates the lower terminal pin 212 to be quickly inserted into the connection hole 110, thereby improving the convenience of assembly.
[0035] See also Figure 1 , Figure 5 and Figure 6 As shown, in one embodiment, the lower connector 200 further includes a lower housing 220, a first accommodating cavity is opened on the lower housing 220, the lower connection terminal 210 is arranged in the first accommodating cavity, and the lower terminal pin 212 passes through the bottom of the first accommodating cavity, so that the lower terminal pin 212 is located outside the lower housing 220. In this way, the lower terminal pin 212 can be easily connected and fixed to the PCB board 100.
[0036] Furthermore, the upper connector 300 also includes an upper shell 320, a second accommodating cavity is opened on the upper shell 320, the upper connecting terminal 310 is arranged in the second accommodating cavity, and a limiting card block 221 is arranged on the outer wall of the lower shell 220, and a limiting card hole 321 is opened on the outer wall of the upper shell 320. When the upper connector 300 is buckled and connected with the lower connector 200, the limiting card block 221 is accommodated in the limiting card hole 321.
[0037] It should be noted that the connection and fixation between the upper connector 300 and the lower connector 200 are achieved through the limiting card block 221 and the limiting card hole 321, so that the upper connecting surface 311a and the lower connecting surface 211a are in close contact; further, a guiding inclined surface is provided on the side surface of the limiting card block 221 facing the upper connector 300, and the limiting card block 221 can be quickly inserted into the limiting card hole 321 through the guiding inclined surface, that is, when plugging, it is more conducive to extrusion alignment and plugging operation; further, four limiting card blocks 221 are provided, and the four limiting card blocks 221 are respectively provided on the two opposite outer side walls of the lower shell 220, so that the connection stability between the lower connector 200 and the upper connector 300 can be further improved. It should also be noted that an upper terminal pin 312 is provided on one end of the upper connecting terminal 310 away from the upper connecting groove 311, and the upper terminal pin 312 is connected and fixed to the FPC (flexible circuit board) or PCB board. For example, welding can be used to connect the upper terminal pin 312 to the FPC or PCB board.
[0038] Furthermore, when the upper connector 300 is not in a snap-fit connection with the lower connector 100, the limiting block 221 and the limiting hole 321 are misaligned by a preset height. That is, when the upper connector 300 and the lower connector 100 are not yet assembled and connected, it is necessary to form a preset height misalignment between the limiting block 221 and the limiting hole 321. The reason is that the lower connection protrusion 211 on the lower connection terminal 210 is squeezed and deformed by the upper connection groove 311 on the upper connection terminal 310, forming a preset compression amount. At this time, the limiting block 221 and the limiting hole 321 are snap-fitted and locked, so that the lower connection protrusion 211 is kept in the preset compression amount, so that the lower connection surface 211a and the upper connection surface 311a can be further ensured to be in close contact. Because the contact point is a surface contact, the contact area is larger, which can further make the communication signal better and the connection more compact, and at the same time, it can also reduce the metal fatigue caused by hard contact. For example, when the preset compression amount is 0.1mm, the corresponding limit block 221 and the limit hole 321 form a 0.1mm height offset in the vertical direction, that is, theoretically, in the unassembled state, the setting position of the limit block 221 is completely aligned with the limit hole 321, but in order to ensure that the connection between the lower connecting surface 211a and the upper connecting surface 311a is tighter, the limit block 221 needs to be offset downward by 0.1mm relative to the limit hole 321, that is, the preset height is 0.1mm, then after the limit block 221 and the limit hole 321 form a snap-fit connection, there is no gap between the lower connecting surface 211a and the upper connecting surface 311a, and the alignment of the upper connecting terminal 211 and the lower connecting terminal 311 is more accurate.
[0039] It should also be noted that, in the present invention, the structures of the various parts of the upper connector 300 and the lower connector 200 are all symmetrically designed, and the lower connecting terminal 210 and the upper connecting terminal 310 are in surface contact. After the lower connecting terminal 210 and the upper connecting terminal 310 are connected, they can also be locked and fixed through the limit card holes 321 and the limit card blocks 221 on the upper shell 320 and the lower shell 220, so that both forward and reverse assembly can achieve normal conduction work; then compared with the existing connector that can be plugged in only one direction, it is more conducive to the convenience of assembly, and at the same time avoids the problem of misalignment, extrusion and deformation of the connecting terminal due to reverse installation.
[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A PCB board and connector assembly connection structure for enhancing communication signals, characterized in that: include: A PCB board, wherein a mounting area is provided on the PCB board; a lower connector, the lower connector being arranged on the mounting area, the lower connector comprising a lower connecting terminal, the lower connecting terminal being provided with a plurality of lower connecting protrusions, and a surface of each of the lower connecting protrusions being provided with a lower connecting surface; and The upper connector includes an upper connecting terminal, a plurality of upper connecting grooves are provided on the upper connecting terminal, and each of the upper connecting grooves is provided with an upper connecting surface. When the lower connector is buckled and connected with the upper connector, each of the lower connecting protrusions is respectively accommodated in the upper connecting groove so that the lower connecting surface is abutted against the upper connecting surface.
2. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 1, characterized in that: Each of the lower connecting protrusions is provided with an avoidance hole and an opening, and the opening is connected to the avoidance hole, so that the lower connecting protrusion forms a "fish hook" structure.
3. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 2, characterized in that: The lower connecting terminal is respectively provided with a first lower connecting protrusion, a second lower connecting protrusion and a third lower connecting protrusion, the first lower connecting protrusion and the third lower connecting protrusion are respectively located on both sides of the second lower connecting protrusion, and the second lower connecting protrusion is respectively arranged at a height higher than the first lower connecting protrusion and the third lower connecting protrusion.
4. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 1, characterized in that: A plurality of lower terminal pins are further provided at one end of the lower connecting terminal away from the lower connecting protrusion, a plurality of connecting holes are opened on the PCB board, each of the connecting holes is respectively located on the mounting area, and each of the lower terminal pins is respectively inserted into each of the connecting holes.
5. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 4, characterized in that: Each of the lower terminal pins is provided with an avoidance groove so as to divide the lower terminal pin into a first elastic plug-in portion and a second elastic plug-in portion.
6. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 5, characterized in that: A plug connector is arranged on one end of the lower terminal pin facing the PCB board, and a guiding inclined surface is arranged on one end of the plug connector facing the PCB board.
7. The PCB board and connector assembly connection structure for enhancing communication signals according to any one of claims 4 to 6, characterized in that: The lower connector also includes a lower shell having a first accommodating cavity formed thereon, the lower connecting terminal being arranged in the first accommodating cavity, and the lower terminal pin passing through the bottom of the first accommodating cavity so that the lower terminal pin is located outside the lower shell.
8. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 7, characterized in that: The upper connector also includes an upper shell, a second accommodating cavity is opened on the upper shell, the upper connecting terminal is arranged in the second accommodating cavity, and a limiting card block is arranged on the outer wall of the lower shell, and a limiting card hole is opened on the outer wall of the upper shell. When the upper connector is buckled and connected with the lower connector, the limiting card block is accommodated in the limiting card hole.
9. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 8, characterized in that: When the upper connector is not in a snap-fit connection with the lower connector, the limiting card block and the limiting card hole are misaligned with a preset height.
10. The PCB board and connector assembly connection structure for enhancing communication signals according to claim 9, characterized in that: The preset height is 0.1 mm.