Breakage-proof circuit board interface

Abstract

The utility model discloses an anti-breaking circuit board interface, which comprises a mounting PCB and a sub-plugging structure, the sub-plugging structure is fixedly mounted on the front surface of the mounting PCB, a limiting structure is fixedly mounted on the front surface of the mounting PCB below the sub-plugging structure, a mother plugging structure is mounted in the sub-plugging structure in a plugging manner, and the mother plugging structure is fixedly mounted on the front surface of the mounting PCB. The surface of the female plug-in structure is electrically connected with an FPC flexible flat cable, the surface of the plug-in block is fixedly provided with a disassembly auxiliary pull ring, and the other end of the FPC flexible flat cable is electrically connected with a plug-in terminal. According to the anti-breaking circuit board interface provided by the utility model, the plugging terminal can be prevented from being damaged by excessive force during plugging through the buffering of the buffering elastic sheet in the limiting structure, the stress of the limiting structure is used for replacing the stress of a soldering point, the soldering point is better protected from being broken due to the stress, and the service life of the circuit board interface is prolonged. Moreover, even if the plugging terminal is damaged after long-term plugging, the plugging terminal can be easily replaced, the operation is simple and convenient, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic connection structures, in particular to an anti-breakage circuit board interface. Background Art

[0002] There are many interfaces on the circuit board, such as power interface, audio and video interface, USB interface, etc. These interfaces are welded on the edge of the circuit board and then installed inside the shell of the device, and these interfaces are embedded in the preset shell openings. However, during use, because some circuit board interfaces are frequently plugged and unplugged, it is easy to cause the interface and the circuit board solder connection to loosen and disconnect. Once disconnected, the user needs to find a professional maintenance personnel to spend a high maintenance fee for repair, which is not only troublesome but also costs a lot of money for repair. For this reason, we propose an anti-break circuit board interface. Utility Model Content

[0003] The main purpose of the utility model is to provide a circuit board interface that is anti-breakage, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A break-proof circuit board interface comprises a PCB installation board and a sub-plug-in structure, wherein the sub-plug-in structure is fixedly installed on the front surface of the PCB installation board, the front surface of the PCB installation board is located below the sub-plug-in structure and a limiting structure is fixedly installed, a female plug-in structure is plugged into the sub-plug-in structure, a surface of the female plug-in structure is electrically connected to an FPC flexible flat cable, a surface of a plug-in block is fixedly installed with a disassembly auxiliary pull ring, and the other end of the FPC flexible flat cable is electrically connected to a plug-in terminal.

[0006] Furthermore, the sub-plug structure includes a plug sleeve, a connecting copper sheet and a connecting groove. The connecting copper sheet is fixedly mounted on the inner surface of the plug sleeve, and the connecting copper sheet has a connecting groove on its surface.

[0007] Furthermore, the connector copper sheet is electrically connected to the circuit on the mounting PCB board, and a plurality of connector copper sheets are provided as needed.

[0008] Furthermore, the female plug-in structure includes a plug-in block, a mounting groove, a connecting female spring piece and a connecting protrusion. The surface of the plug-in block is provided with a mounting groove, and a plurality of mounting grooves are provided as needed. Connecting female spring pieces are fixedly installed in the mounting grooves, and a connecting protrusion is fixedly installed on the surface of the connecting female spring piece.

[0009] Furthermore, the connecting copper sheet and the connecting female spring sheet are matched and arranged, and the connecting protrusion and the connecting groove are matched and arranged.

[0010] Furthermore, the limiting structure includes a snap-on spring, a snap-on pin, a fixing column and a buffer spring; the front surface of the PCB installation board is located on both sides of the plug-in terminal and is fixedly installed with snap-on springs; the front surface of the PCB installation board is located below the snap-on spring and is fixedly installed with fixing columns; the lower surface of the fixing column is fixedly installed with a buffer spring; the adjacent surface of the snap-on spring is fixedly installed with a snap-on pin; and the surface of the plug-in terminal is fixedly installed with a limiting baffle.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, when the circuit board interface is in use, it can be buffered by the buffer spring in the limiting structure to avoid damage to the plug-in terminal due to excessive force during plugging and unplugging. Moreover, because the FPC soft flat cable is flexible during plugging and unplugging, the connecting soldering points between the sub-plugging structure and the installed PCB board will not be damaged no matter how hard it is plugged in. Therefore, the force applied by the limiting structure replaces the force applied to the soldering point, which better protects the soldering point from being broken by the force. Furthermore, even if the plug-in terminal is damaged due to long-term plugging and unplugging, it can be easily replaced. The operation is simple and convenient, and the replacement cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an anti-breakage circuit board interface of the utility model;

[0014] Figure 2 This is a partial view of the overall structure of an anti-breakage circuit board interface of the utility model;

[0015] Figure 3 It is a partial display diagram of a sub-plug structure and a female plug structure of an anti-breakage circuit board interface of the utility model;

[0016] Figure 4 It is a partial cross-sectional view showing a sub-plug structure and a female plug structure of a break-proof circuit board interface of the utility model.

[0017] In the figure: 1. Install PCB board; 2. Sub-plug structure; 201. Plug sleeve; 202. Connect sub-copper sheet; 203. Connecting groove; 3. Mother plug structure; 301. Plug block; 302. Mounting groove; 303. Connect mother spring sheet; 304. Connecting protrusion; 4. FPC soft flat cable; 5. Disassembly auxiliary pull ring; 6. Plug terminal; 601. Limit baffle; 7. Limit structure; 701. Snap-on spring sheet; 702. Bayonet; 703. Fixing column; 704. Buffer spring sheet. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] Embodiment 1:

[0020] like Figure 1-4 As shown, an anti-breakage circuit board interface includes a PCB board 1 and a sub-plug structure 2, the sub-plug structure 2 is fixedly installed on the front surface of the PCB board 1, the front surface of the PCB board 1 is located below the sub-plug structure 2 and a limited structure 7 is fixedly installed, a female plug structure 3 is plugged and installed in the sub-plug structure 2, a surface of the female plug structure 3 is electrically connected with an FPC soft flat cable 4, a disassembly auxiliary pull ring 5 is fixedly installed on the surface of the plug block 301, and the disassembly auxiliary pull ring 5 is used to assist in pulling out the plug block 301 to improve the disassembly efficiency, and the other end of the FPC soft flat cable 4 is electrically connected with a plug terminal 6;

[0021] The sub-plug structure 2 includes a plug sleeve 201, a connecting sub-copper sheet 202 and a connecting groove 203. The inner surface of the plug sleeve 201 is fixedly installed with a connecting sub-copper sheet 202, and the surface of the connecting sub-copper sheet 202 is provided with a connecting groove 203; the connecting sub-copper sheet 202 is electrically connected to the circuit on the installation PCB board 1, and multiple connecting sub-copper sheets 202 are provided as needed; the female plug structure 3 includes a plug block 301, a mounting groove 302, a connecting female spring piece 303 and a connecting protrusion 304. The surface of the plug block 301 is provided with a mounting groove 302, and multiple mounting grooves 302 are provided as needed. Connecting female spring pieces 303 are fixedly installed in the mounting grooves 302, and connecting protrusions 304 are fixedly installed on the surface of the connecting female spring piece 303; the connecting sub-copper sheet 202 and the connecting female spring piece 303 are matched, and the connecting protrusion 304 and the connecting groove 203 are matched. The purpose of the connecting protrusion 304 being inserted into the connecting groove 203 is to enable the female plug-in structure 3 to be more tightly connected to the sub-plug-in structure 2 to avoid separation; the limiting structure 7 includes a locking spring piece 701, a locking pin 702, a fixing column 703 and a buffer spring piece 704, and the front surface of the PCB board 1 for installation is located on both sides of the plug-in terminal 6 and fixedly installed with the locking spring pieces 701, and the front surface of the PCB board 1 for installation is located below the locking spring piece 701 and fixedly installed with the fixing column 703, and the lower surface of the fixing column 703 is fixedly installed with the buffer spring piece 704, and the adjacent surface of the locking spring piece 701 is fixedly installed with the locking pin 702, and the surface of the plug-in terminal 6 is fixedly installed with a limiting baffle 601, wherein the locking spring piece 701 and the locking pin 702 are both used for locking and limiting the position of the plug-in terminal 6, and the plug-in terminal 6 can be removed and installed through the flexibility of the locking spring piece 701.

[0022] It should be noted that the utility model is an anti-breakage circuit board interface. When installing the interface, firstly, the sub-plug structure 2 needs to be fixed on the surface of the installation PCB board 1 through soldering during production, and then the plug block 301 is inserted into the plug sleeve 201, so that the connecting protrusion 304 is inserted into the connecting groove 203, so that the connecting sub-copper sheet 202 and the connecting mother spring sheet 303 can be tightly connected. After the connection, the plug terminal 6 is inserted between the two connecting spring sheets 701 at the corresponding positions, and the bayonet 702 is stuck on the surface of the plug terminal 6 for locking. At this time, the limit baffle 601 is not subjected to the force of the buffer spring sheet 704, and the limit baffle 601 is just in contact with the buffer spring sheet 704. When the installation PCB board 1 is installed on the body shell for use, the user plugs in the plug terminal 6. When plugging in forcefully at this time, the plug-in terminal 6 and the limit baffle 601 are subjected to an inward extrusion force, so that the buffer spring sheet 704 is compressed and buffered for a certain distance, thereby avoiding the breakage of the fixing column 703 due to violent plugging, thereby playing a protective role. At the same time, no matter how the plugging and unplugging is performed, the solder connection between the sub-plugging structure 2 and the mounting PCB board 1 will not be broken, because the plugging and unplugging force is always borne by the fixing column 703 and the limit baffle 601. If the plug-in terminal 6 is damaged due to long-term use, it can be replaced. When replacing, the card-connecting spring sheets 701 on both sides can be opened to remove the plug-in terminal 6, and then the disassembly auxiliary pull ring 5 can be pulled to pull the mother plug-in structure 3 out of the sub-plug-in structure 2, so that a new structure can be used for plugging and replacement. In this way, it can be replaced by oneself, avoiding the trouble of finding someone to repair and the cost of money, and the operation is simple and convenient.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A circuit board interface that is anti-breakage, characterized in that: The invention comprises a mounting PCB board (1) and a sub-plug structure (2), wherein the sub-plug structure (2) is fixedly mounted on the front surface of the mounting PCB board (1), a limiting structure (7) is fixedly mounted on the front surface of the mounting PCB board (1) below the sub-plug structure (2), a female plug structure (3) is plugged into the sub-plug structure (2), a surface of the female plug structure (3) is electrically connected to an FPC flexible flat cable (4), a disassembly auxiliary pull ring (5) is fixedly mounted on the surface of a plug block (301), and the other end of the FPC flexible flat cable (4) is electrically connected to a plug terminal (6).

2. The anti-breakage circuit board interface according to claim 1, characterized in that: The sub-plug structure (2) comprises a plug sleeve (201), a connecting copper sheet (202) and a connecting groove (203); the connecting copper sheet (202) is fixedly mounted on the inner surface of the plug sleeve (201), and the connecting groove (203) is provided on the surface of the connecting copper sheet (202).

3. The anti-breakage circuit board interface according to claim 2, characterized in that: The connecting copper sheet (202) is electrically connected to the circuit on the mounting PCB board (1), and a plurality of connecting copper sheets (202) are provided as required.

4. The anti-breakage circuit board interface according to claim 3, characterized in that: The female plug-in structure (3) comprises a plug-in block (301), a mounting groove (302), a connecting female spring piece (303) and a connecting protrusion (304); the surface of the plug-in block (301) is provided with a mounting groove (302); a plurality of mounting grooves (302) are provided as required; each mounting groove (302) is fixedly installed with a connecting female spring piece (303); and a connecting protrusion (304) is fixedly installed on the surface of the connecting female spring piece (303).

5. The anti-breakage circuit board interface according to claim 4, characterized in that: The connecting copper sheet (202) and the connecting female spring sheet (303) are matched and arranged, and the connecting protrusion (304) and the connecting groove (203) are matched and arranged.

6. The anti-breakage circuit board interface according to claim 5, characterized in that: The limiting structure (7) comprises a snap-on spring sheet (701), a snap-on pin (702), a fixing column (703) and a buffer spring sheet (704); the front surface of the mounting PCB board (1) is located on both sides of the plug-in terminal (6) and is fixedly mounted with the snap-on spring sheets (701); the front surface of the mounting PCB board (1) is located below the snap-on spring sheet (701) and is fixedly mounted with the fixing column (703); the lower surface of the fixing column (703) is fixedly mounted with the buffer spring sheet (704); the adjacent surface of the snap-on spring sheet (701) is fixedly mounted with the snap-on pin (702); and the surface of the plug-in terminal (6) is fixedly mounted with the limiting baffle (601).

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