CN220797136U

CN220797136U - PCB assembly and antenna

Info

Publication number: CN220797136U
Application number: CN202322449046.9U
Authority: CN
Inventors: 周刚; 周正国; 李振华; 吕康宁
Original assignee: Suzhou Lixun Technology Co ltd
Current assignee: Suzhou Lixun Technology Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-04-16
Anticipated expiration: 2033-09-08

Abstract

The utility model relates to the technical field of communication, and discloses a PCB assembly and an antenna. The PCB assembly comprises a PCB and a wire clamp, a circuit is arranged in the PCB, a through hole is formed in the PCB, a first metal layer is arranged in the through hole, and the first metal layer is electrically connected with the circuit; the wire clamp is made of a conductor and comprises a body, and a connecting column and a wire slot which are arranged on the body, wherein the wire slot is used for accommodating the wire harness, and the connecting column can penetrate through the through hole and is connected with the through hole in a crimping manner so that the connecting column is electrically connected with the first metal layer. Compared with soldering tin connection in the prior art, the connecting column is connected with the through hole in a crimping way, so that the damage of the wire clamp caused by heating is reduced, and the connection is more reliable; meanwhile, the operation process of positioning and connecting is more convenient and has lower cost; the connected PCB assembly has stronger adaptive capacity to environment and longer service life.

Description

PCB assembly and antenna

Technical Field

The utility model relates to the technical field of communication, in particular to a PCB assembly and an antenna.

Background

The PCB assembly is a key component of the antenna, and includes a PCB board and a clip. The quality of the connection quality of the PCB and the wire clamp is the guarantee of the use safety and the service life of the antenna.

In the prior art, the connection between a conventional PCB and a wire clamp is soldering tin type. During soldering, electrical connection is realized through the tin wire and the soldered surface, so that metal electrical connection is formed between the PCB and the wire clamp. For solder type, the foremost is the solderability of the PCB board and the clip. Because the existing welding wire clamps are formed by die casting, the thickness is large, so that the welding wire clamps are easy to crack after being heated when the welding wire heating time is long, and the welding wire cost is high. In addition, the ability of solder to adapt to the environment is poor; is easy to oxidize, has short service life limit and is difficult to meet the reliability requirement of the antenna.

Therefore, a PCB assembly and an antenna are needed to solve the above-mentioned problems.

Disclosure of Invention

Based on the above, the utility model aims to provide a PCB assembly and an antenna, which have better connection effect, simpler assembly and positioning and strong assembly operability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a PCB assembly, comprising:

the PCB is internally provided with a circuit, a through hole is formed in the PCB, a first metal layer is arranged in the through hole, and the first metal layer is electrically connected with the circuit;

the wire clamp is made of a conductor and comprises a body, a connecting column and a wire groove, wherein the connecting column and the wire groove are arranged on the body, the wire groove is used for accommodating a wire harness, and the connecting column can penetrate through the through hole and is connected with the through hole in a crimping manner, so that the connecting column is electrically connected with the first metal layer.

As a preferable scheme of the PCB assembly, the connecting column penetrating through the through hole is in compression joint with the through hole by adopting a cold heading process.

As a preferred scheme of the PCB assembly, the connection post is provided in a cylindrical shape, and the through hole is circular in cross section along a radial direction thereof.

As a preferable scheme of the PCB assembly, one end of the connecting column, which is far away from the body, is provided with a pressure welding groove, and after the connecting column is in pressure welding with the through hole, the side edge of the pressure welding groove can turn over towards the circumference of the through hole and is attached to the PCB.

As a preferable scheme of the PCB assembly, a second metal layer is arranged on the surface of one side, far away from the body, of the PCB, the second metal layer is arranged on the periphery of the through hole and is electrically connected with the first metal layer, and the side edge of the turnover crimping groove can be electrically connected with the second metal layer.

As a preferable scheme of the PCB assembly, a third metal layer is arranged on the surface, close to the body, of one side of the PCB, the third metal layer is arranged on the periphery of the through hole and is electrically connected with the first metal layer, and after the connecting column is in compression joint, the third metal layer is electrically connected with the wire clamp.

As a preferred scheme of PCB subassembly, the spliced pole is provided with two, the through-hole with the spliced pole one-to-one sets up, the PCB board still has and dodges the hole, dodges the hole setting two between the through-hole, the wire casing can be arranged in dodge downthehole.

As a preferable scheme of the PCB assembly, the body is provided with mounting lugs corresponding to the connecting columns one by one, and the two mounting lugs are respectively arranged on two opposite sides of the wire slot.

As a preferable scheme of the PCB assembly, the clip is integrally formed.

An antenna comprising a wire harness and a PCB assembly according to any of the above aspects, the wire harness being disposed within the wire chase.

The beneficial effects of the utility model are as follows:

according to the utility model, the connection between the PCB assembly and the wire harness is realized by arranging the wire clamp which can be connected with the PCB and is electrically conducted. In order to realize the connection between the PCB and the wire clamp, a through hole is formed in the PCB, a first metal layer is arranged in the through hole, and the first metal layer is electrically connected with a circuit of the PCB; simultaneously set up the spliced pole that is used for being connected with the PCB board and the wire casing of being connected with the pencil on the fastener for after the spliced pole of online clamp is arranged in the through-hole and can be connected with the through-hole crimping, when realizing switching on with first metal level, switch on the circuit of fastener and PCB board in the lump, and then set up the pencil on the fastener after, realize the electric property between the circuit of pencil and PCB board and switch on, and then realize the function of predetermineeing of PCB subassembly. It is worth to say that, because the connecting column is connected with the through hole in a crimping way, compared with the soldering tin connection in the prior art, the damage of the wire clamp caused by heating is reduced, and the connection is more reliable; meanwhile, the operation process of positioning and connecting is more convenient and has lower cost; the connected PCB assembly has stronger adaptive capacity to environment and longer service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a PCB assembly provided in accordance with an embodiment of the present utility model;

fig. 2 is a schematic view of a PCB board of a PCB assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a clip of a PCB assembly provided in accordance with an embodiment of the present utility model;

fig. 4 is a cross-sectional view of a PCB board and a clip of a PCB assembly provided in an embodiment of the present utility model prior to crimping;

fig. 5 is a cross-sectional view of a PCB board and clip of a PCB assembly provided by an embodiment of the present utility model after crimping.

In the figure:

100. a PCB board; 110. a through hole; 120. a first metal layer; 130. a second metal layer; 140. a third metal layer; 150. avoidance holes;

200. a wire clamp; 210. a body; 220. a connecting column; 221. a crimping groove; 230. a wire slot; 240. and (5) mounting the lugs.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, either fixed or removable; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present embodiment provides a PCB assembly, which includes a PCB board 100 and a wire clip 200, wherein a circuit is disposed in the PCB board 100, a through hole 110 is disposed on the PCB board 100, a first metal layer 120 is disposed in the through hole 110, and the first metal layer 120 is electrically connected with the circuit; the wire clip 200 is made of a conductor, and comprises a body 210, a connecting column 220 and a wire slot 230, wherein the connecting column 220 and the wire slot 230 are arranged on the body 210, the wire slot 230 is used for accommodating a wire harness, and the connecting column 220 can be arranged through the through hole 110 in a penetrating mode and connected with the through hole 110 in a pressing mode, so that the connecting column 220 is electrically connected with the first metal layer 120.

The connection of the PCB assembly and the wire harness is achieved by providing the wire clip 200 which can be connected and electrically conducted with the PCB board 100. In order to realize the connection between the PCB 100 and the wire clip 200, a through hole 110 is arranged on the PCB 100, a first metal layer 120 is arranged in the through hole 110, and the first metal layer 120 is electrically connected with a circuit of the PCB 100; meanwhile, the connecting column 220 used for being connected with the PCB 100 and the wire slot 230 connected with the wire harness are arranged on the wire clamp 200, so that the connecting column 220 of the wire clamp 200 can be placed in the through hole 110 and connected with the through hole 110 in a crimping manner, the circuit of the wire clamp 200 and the PCB 100 is conducted together when the connection with the first metal layer 120 is realized, and then after the wire harness is arranged on the wire clamp 200, the electrical conduction between the wire harness and the circuit of the PCB 100 is realized, and then the preset function of the PCB assembly is realized. It should be noted that, because the connecting post 220 is in press-connection with the through hole 110, compared with the solder connection in the prior art, the damage of the wire clip 200 caused by heating is reduced, so that the connection is more reliable; meanwhile, the operation process of positioning and connecting is more convenient and has lower cost; the connected PCB assembly has stronger adaptive capacity to environment and longer service life.

In this embodiment, the connecting post 220 penetrating through the through hole 110 is crimped with the through hole 110 by a cold heading process. The cold heading process is a processing method which uses plastic deformation of metal under the action of external force, and uses a die to redistribute and transfer the volume of metal so as to form the required part or blank. Fixing the connecting column 220 of the wire clip 200 into the through hole 110 of the PCB 100 by adopting a cold heading process and generating electric connection with the first metal layer 120, thereby realizing the connection of the wire clip 200 without welding and the PCB 100; meanwhile, the assembly is more convenient, and the efficiency is higher.

Optionally, the connecting post 220 is cylindrical, the through hole 110 is circular in radial cross section, and the diameter is matched with the diameter of the connecting post 220, so that the circular arrangement is more convenient for installing the wire clip 200 in different directions.

Specifically, the end of the connection post 220, which is far from the body 210, is provided with a crimping groove 221, and by providing the crimping groove 221, on the one hand, crimping of the crimping apparatus is facilitated; on the other hand, after the connection post 220 is crimped with the through hole 110, the side edge of the crimp groove 221 can be turned towards the circumferential direction of the through hole 110 and attached to the PCB board 100, so as to further improve the connection reliability between the connection post 220 of the wire clip 200 and the through hole 110 of the PCB board 100.

Further, the PCB 100 has a second metal layer 130 on a surface of the PCB, which is far away from the body 210, the second metal layer 130 is disposed on the periphery of the through hole 110, the second metal layer 130 is electrically connected to the first metal layer 120, and the side of the turned pressing slot 221 can be electrically connected to the second metal layer 130. By arranging the second metal layer 130 electrically connected with the first metal layer 120, the connection post 220 after being crimped is not only electrically connected with the first metal layer 120, but also at least has a part of structure electrically connected with the second metal layer 130, thereby improving the reliability of the electrical connection between the connection post 220 and the circuit of the PCB board 100.

Preferably, the PCB 100 has a third metal layer 140 on a surface of the PCB, which is close to the body 210, the third metal layer 140 is disposed on the periphery of the through hole 110, the third metal layer 140 is electrically connected to the first metal layer 120, and after the connecting post 220 is crimped, the third metal layer 140 is electrically connected to the wire clip 200. By disposing the third metal layer 140 electrically connected to the first metal layer 120, the reliability of the electrical connection between the connection post 220 and the circuit of the PCB 100 is also improved.

It should be noted that the first metal layer 120, the second metal layer 130 and the third metal layer 140 may be integrally disposed and electrically connected to the circuit; meanwhile, the metal layer may be made of a layer of a guiding material or a plurality of layers of conductive materials, which are not particularly limited herein. It will be appreciated that the metal layer made of multiple layers of conductive material has a higher structural strength, ensuring the feasibility of crimping and the reliability of contact with the connection post 220 after crimping. In addition, the positions of the PCB 100 except the through holes 110 and the metal layer are covered with green oil to ensure the insulation of the PCB 100.

In this embodiment, in order to improve the reliability of connection between the wire clip 200 and the PCB, two connection posts 220 are provided, and the through holes 110 are disposed in one-to-one correspondence with the connection posts 220. Accordingly, the PCB board 100 further has an avoidance hole 150, and the avoidance hole 150 is disposed between the two through holes 110. Through setting up dodging the hole, can avoid effectively that the interference takes place between PCB board 100 and the wire casing 230 for wire casing 230 can be arranged in dodging the hole 150. Illustratively, the relief holes 150 are disposed in communication with an edge of the PCB board 100.

Optionally, in order to set the connection post 220 on the body 210, the body 210 is provided with mounting lugs 240 corresponding to the connection posts 220 one by one, and the two mounting lugs 240 are respectively disposed on two opposite sides of the wire slot 230 and extend away from the wire slot 230, so that the connection posts 220 can be located on two sides of the wire slot 230, on one hand, the connection reliability of the wire clip 200 and the PCB board 100 is ensured, and on the other hand, interference between the wire bundle and the connection post 220 in the wire slot 230 is avoided.

Further, the wire clip 200 is integrally formed, so that the manufacturing process of the integrally formed wire clip 200 is simpler, and the structural strength is higher.

In various embodiments, a person skilled in the art may choose to provide a corresponding number of clips 200 on the PCB board 100 according to the number of harnesses to be connected by the PCB assembly, which is not limited herein.

The present embodiment also discloses an antenna, which includes a wire harness and the PCB assembly according to any of the above schemes, wherein the wire harness is disposed in the wire slot 230. Be provided with the antenna of above-mentioned PCB subassembly, be connected through the crimping between PCB board 100 and the fastener 200, compare more reliably in current soldering connection, adaptation environmental capacity is better simultaneously, and the life-span is longer, and then makes the factor of safety of antenna higher, and the cost is lower.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims

A pcb assembly, comprising:

the PCB (100), be provided with the circuit in PCB (100), be provided with through-hole (110) on PCB (100), be provided with first metal layer (120) in through-hole (110), first metal layer (120) with circuit electric connection;

the wire clamp (200), wire clamp (200) adopts the conductor to make, including body (210) and set up in spliced pole (220) and wire casing (230) on body (210), wire casing (230) are used for the holding pencil, spliced pole (220) can wear to locate through-hole (110) and with through-hole (110) crimping connection, so that spliced pole (220) with first metal level (120) electric connection.
2. The PCB assembly of claim 1, wherein the connection post (220) penetrating the through hole (110) is crimped with the through hole (110) using a cold heading process.
3. The PCB assembly of claim 1, wherein the connection post (220) is provided in a cylindrical shape, and the through hole (110) is circular in cross section along a radial direction thereof.
4. A PCB assembly according to claim 3, characterized in that the end of the connecting post (220) remote from the body (210) is provided with a crimp groove (221), and when the connecting post (220) is crimped with the through hole (110), the side edge of the crimp groove (221) can be turned towards the circumference of the through hole (110) and attached to the PCB board (100).
5. The PCB assembly of claim 4, wherein a second metal layer (130) is disposed on a surface of the PCB (100) away from the body (210), the second metal layer (130) is disposed on an outer periphery of the through hole (110), the second metal layer (130) is electrically connected to the first metal layer (120), and a side of the turned crimp groove (221) is electrically connected to the second metal layer (130).
6. The PCB assembly of claim 1, wherein a third metal layer (140) is disposed on a surface of the PCB board (100) adjacent to the body (210), the third metal layer (140) is disposed on an outer periphery of the through hole (110), the third metal layer (140) is electrically connected to the first metal layer (120), and after the connecting post (220) is crimped, the third metal layer (140) is electrically connected to the wire clip (200).
7. The PCB assembly of claim 1, wherein two connecting posts (220) are provided, the through holes (110) are arranged in one-to-one correspondence with the connecting posts (220), the PCB board (100) further has an avoidance hole (150), the avoidance hole (150) is arranged between the two through holes (110), and the wire slot (230) can be arranged in the avoidance hole (150).
8. The PCB assembly of claim 2, wherein the body (210) is provided with mounting ears (240) corresponding to the connection posts (220) one by one, and two of the mounting ears (240) are disposed on opposite sides of the slot (230), respectively.
9. The PCB assembly of any of claims 1-8, wherein the clip (200) is integrally formed.
10. An antenna comprising a wire harness and a PCB assembly according to any of claims 1-9, said wire harness being arranged in said wire slot (230).