Double-sided PCB convenient to weld

Abstract

The utility model discloses a double-sided PCB convenient to weld, and relates to the field of circuit boards. The double-sided PCB convenient to weld comprises a PCB substrate, a large element welding station, a surface-mounted welding station and a via hole type element welding station are arranged on the PCB substrate, and a positioning frame is arranged on the outer surface of the large element welding station and used for positioning large elements during welding and stabilizing the large elements during subsequent use; a release positioning piece is pasted on a surface-mounted welding station, tin liquid is injected through a welding window, surface-mounted elements are rapidly placed, after the tin liquid is solidified, the release positioning piece is torn and removed, an effective positioning effect is achieved in the welding process, and meanwhile series welding of the adjacent surface-mounted elements is avoided; and a via hole type element welding station, a via hole type copper pipe is mounted in the via hole type element welding station, and a pin anti-falling part is arranged on the inner wall of the via hole type copper pipe, so that when an element is welded, a pin is inserted into the via hole type copper pipe and cannot move reversely, and a good fixing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit board technical field, concretely is a double -sided PCB board convenient to solder. BACKGROUND

[0002] Double -sided PCB board is a kind of hard circuit board as substrate, by welding electronic component on its two sides, to form a kind of circuit board, by separating electronic component and setting on the two sides of PCB board, to effectively avoid the problem of great welding difficulty caused by too dense single -sided electronic component.

[0003] However, the surface of the existing double -sided PCB board is usually provided with large component station, via hole type station and surface mount type station, which respectively corresponds to various sizes of electronic components required to be used by PCB board, however, in actual welding process, there is certain welding difficulty for various electronic components, surface mount type electronic component is too small, and it is easy to be welded skew; via hole type component pin is easy to move, leading to false welding; large component lacks effective positioning when welding, and is easy to fall off due to gravity after welding, therefore, a double -sided PCB board convenient to solder is provided. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a double -sided PCB board convenient to solder, which solves the problems of the existing double -sided PCB board, certain welding difficulty for various electronic components, surface mount type electronic component is too small, and it is easy to be welded skew; via hole type component pin is easy to move, leading to false welding; large component lacks effective positioning when welding, and is easy to fall off due to gravity after welding.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a double -sided PCB board convenient to solder, including PCB substrate, the PCB substrate is provided with;

[0006] Large component welding station, the outer surface of the large component welding station is provided with positioning frame;

[0007] Surface mount type welding station, the surface mount type welding station is pasted with release positioning piece;

[0008] Via hole type component welding station, the via hole type component welding station is installed with via copper pipe, and the inner wall of via copper pipe is provided with pin anti -fall part.

[0009] Preferably, the pin anti -fall part is annular copper ring, and the inner side of annular copper ring is concave downward and forms tapered contraction, for one -way pin insertion stop.

[0010] Preferably, the outer surface of the PCB substrate is provided with copper wiring, and the large component welding station, the surface-mounted component welding station and the via component welding station are electrically connected through the copper wiring.

[0011] Preferably, the outer surface of the PCB substrate is provided with a fixing perforation, and the two sides of the PCB substrate are provided with positioning notches.

[0012] Preferably, the surface-mounted component welding station is provided with a surface-mounted pad, and the outer surface of the release positioning piece is provided with a welding window opposite to the surface-mounted pad.

[0013] Preferably, the release positioning piece is high-temperature-resistant rubber, and the welding windows are arranged at intervals.

[0014] Preferably, the via component welding station is fixedly provided with a high-conductivity-resistant layer, the high-conductivity-resistant layer is provided with a through hole, and the via copper pipe is fixedly installed in the through hole.

[0015] Preferably, the two ends of the via copper pipe are integrally formed with anti-falling rings, the anti-falling rings are tightly attached to the high-conductivity-resistant layer and are electrically connected.

[0016] The utility model discloses a double -sided PCB convenient to weld, and it has the beneficial effect as follows:

[0017] 1, for via component welding station, through the improvement to its inside via copper pipe, set up pin anti -falling part in its inside, make the component welding pin insertion via copper pipe can not move reversely, play good fixed effect.

[0018] 2, through setting release positioning piece on surface -mounted pad, through its surface welding window to inject tin liquid when welding, then place surface -mounted component quickly, after tin liquid solidification, tear open release positioning piece and remove, in this way play effective positioning effect in the welding process, simultaneously avoid adjacent surface -mounted component and appear the situation of string welding.

[0019] 3, through setting positioning frame on large component welding station, be used for the positioning when large component welding, simultaneously in the subsequent use process, positioning frame has certain auxiliary support effect to large component, reduce large component and fall off the risk. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0021] Fig. 1 This is a front view of the entire utility model;

[0022] Fig. 2 This is an exploded view of the overall outer surface structure of this utility model;

[0023] Fig. 3 This is a cross-sectional view of the internal structure of the through-hole copper tube of this utility model.

[0024] In the diagram: 1. PCB substrate; 12. Copper lay-up circuit; 13. Fixing through hole; 14. Positioning slot; 15. Large component soldering station; 152. Positioning frame; 16. Surface mount soldering station; 161. Surface mount pad; 162. Release positioning component; 163. Soldering window; 17. Through-hole component soldering station; 171. High conductivity layer; 172. Through-hole; 173. Through-hole copper tube; 174. Anti-detachment ring; 175. Pin anti-detachment part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This application provides a double-sided PCB board that is easy to solder, solving the problems of existing double-sided PCB boards, which have certain soldering difficulties for various electronic components, surface-mount electronic components are too small and are easy to solder crookedly, through-hole components have pins that are easy to move, resulting in cold solder joints, and large components lack effective positioning when soldering and are easy to fall off due to gravity after soldering.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] This utility model discloses a double-sided PCB board that is easy to solder.

[0029] Example 1

[0030] According to the appendix Figs. 1-3 As shown, it includes a PCB substrate 1, on which are disposed;

[0031] Large component welding station 15, with a positioning frame 152 provided on the outer surface of the large component welding station 15;

[0032] Surface-mount welding station 16, on which release positioning part 162 is attached;

[0033] The through-hole component welding station 17 is equipped with a through-hole copper tube 173, and the inner wall of the through-hole copper tube 173 is provided with a pin anti-detachment part 175.

[0034] The anti-loosening part 175 is a ring-shaped copper ring, and the inner side of the ring-shaped copper ring is concave downward to form a conical contraction, which is used to prevent the pin from slipping out in one direction.

[0035] The outer surface of the PCB substrate 1 is provided with copper lay-up lines 12. The large component soldering station 15, the surface mount soldering station 16 and the via component soldering station 17 are all electrically connected through the copper lay-up lines 12.

[0036] The outer surface of the PCB substrate 1 is provided with a fixing through hole 13, and the two sides of the PCB substrate 1 are provided with positioning slots 14.

[0037] A high conductivity layer 171 is fixedly installed in the through-hole component welding station 17. A through-hole 172 is opened in the high conductivity layer 171, and a through-hole copper tube 173 is fixedly installed in the through-hole 172.

[0038] Both ends of the through-hole copper tube 173 are integrally formed with anti-detachment rings 174. The anti-detachment rings 174 are tightly attached to the high conductivity layer 171, and the two are electrically connected.

[0039] In this embodiment, the PCB substrate 1 is equipped with a positioning frame 152 on the large component soldering station 15 for positioning large components during soldering. At the same time, during subsequent use, the positioning frame 152 provides a certain auxiliary support for large components, reducing the risk of large components falling off. Meanwhile, for the through-hole component soldering station 17, the through-hole copper tube 173 inside is improved by setting a pin anti-dislodgement part 175 inside, so that the pins inserted into the through-hole copper tube 173 cannot move in the opposite direction during component soldering, achieving a good fixing effect, thereby facilitating the soldering operation of the entire PCB substrate 1.

[0040] Example 2

[0041] According to the appendix Figs. 1-3 As shown, more specifically, based on Embodiment 1, the surface-mount soldering station 16 is provided with a surface-mount solder pad 161, and the outer surface of the release positioning member 162 is provided with a soldering window 163 facing the surface-mount solder pad 161.

[0042] The release positioning part 162 is made of high temperature resistant rubber, and multiple welding windows 163 are spaced apart.

[0043] When mounting surface-mount components, a release locator 162 is provided on the surface-mount pad 161. During soldering, molten solder is injected through the soldering window 163 on its surface, and then the surface-mount component is quickly placed. After the molten solder solidifies, the release locator 162 is peeled off and removed. This effectively positions the components during the soldering process and prevents cross-soldering between adjacent surface-mount components.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-sided PCB board for facilitating soldering, comprising a PCB substrate (1), characterized in that, The PCB substrate (1) is provided with; The outer surface of the large component welding station (15) is provided with a positioning frame (152); The surface-mounted welding station (16) is pasted with a release positioning piece (162); The via hole type component welding station (17) is provided with a via hole copper pipe (173), and the inner wall of the via hole copper pipe (173) is provided with a pin anti-disengagement part (175).

2. The double-sided PCB board convenient for welding according to claim 1, characterized in that: The pin anti-disengagement part (175) is an annular copper ring, and the inner side of the annular copper ring is downwardly recessed to form a tapered contraction, which is used for one-way pin insertion and retreat prevention.

3. The double-sided PCB board convenient for welding according to claim 1, characterized in that: The outer surface of the PCB substrate (1) is provided with a copper paving line (12), and the large component welding station (15), the surface-mounted welding station (16) and the via hole type component welding station (17) are electrically connected through the copper paving line (12).

4. The double-sided PCB board convenient for welding according to claim 1, characterized in that: The outer surface of the PCB substrate (1) is provided with a fixed perforation (13), and the two sides of the PCB substrate (1) are provided with positioning notches (14).

5. The double-sided PCB board for facilitating soldering of claim 1, wherein: The surface-mounted welding station (16) is provided with a surface-mounted solder pad (161), and the outer surface of the release positioning piece (162) is provided with a welding window (163) opposite to the surface-mounted solder pad (161).

6. The double-sided PCB board for facilitating soldering of claim 5, wherein: The release positioning piece (162) is a high-temperature-resistant rubber, and a plurality of welding windows (163) are arranged at intervals.

7. The double-sided PCB board for facilitating soldering of claim 1, wherein: The via hole type component welding station (17) is fixedly provided with a high-conductivity-resistant layer (171), the high-conductivity-resistant layer (171) is provided with a through via hole (172), and the via hole copper pipe (173) is fixedly installed in the through via hole (172).

8. The double-sided PCB board for facilitating soldering of claim 7, wherein: The both ends of the via hole copper pipe (173) are integrally formed with anti-disengagement rings (174), the anti-disengagement rings (174) are closely attached to the high-conductivity-resistant layer (171), and the both are electrically connected.

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