USB C micro short circuit prevention connector

Abstract

The utility model relates to the technical field of connectors, in particular to a USB C micro short circuit prevention connector, which comprises a terminal structure comprising an upper row of terminals and a lower row of terminals, and the upper row of terminals and the lower row of terminals are Z-shaped; the middle clamping piece and the lower row of terminals are subjected to injection molding to form a first injection molding piece; a plurality of material pressing grooves are formed in the first injection molding part, the plurality of material pressing grooves are separated by a plurality of steps, a glue passing groove is further formed in the first injection molding part, and the upper row of terminals can be embedded into the material pressing grooves in the first injection molding part and are subjected to secondary injection molding to form a second injection molding part. According to the utility model, the plurality of material pressing grooves are arranged on the first injection molding piece, the plurality of material pressing grooves are separated by the plurality of steps, and when the first injection molding and the second injection molding are carried out, the plastic combination surface is in the vertical direction, namely, the upper row of terminals and the lower row of terminals are staggered, and the upper row of terminals are partially embedded into the material pressing grooves, so that staggered filling is formed after injection molding; and combination lines caused by two times of injection molding are avoided, and micro short circuit caused by inflow of steam through the combination lines is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field, concretely is a USB C prevents micro short circuit connector. BACKGROUND

[0002] USB-C connector is a kind of universal serial bus connector released by USB Implementers Forum (USB-IF) organization in 2014, size is usually about 8.3mm×2.5mm or 8.4mm×2.6mm, compared with traditional USB Type-A and Type-B connector is obviously smaller, more conducive to the light and thin design of equipment, suitable for use on mobile phone, tablet, notebook computer and other portable devices with higher space requirements.

[0003] USB-C connector can be charged using USB A and USB C simultaneously, with 10000 times of plug-in life, but the existing market USB-C connector, USB-C upper row terminal and lower row terminal are injection molded respectively, and then multiple molding is carried out in the rear segment, and each injection molding produces a combination line or surface after the combination of plastic and plastic, in high temperature or humid environment, the combination part is easy to accumulate moisture, causing micro short circuit, affecting product use. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a USB C prevents micro short circuit connector, solve the problem proposed in the above background technology.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model provides a USB C prevents micro short circuit connector, including: terminal structure, it includes upper row terminal and lower row terminal, upper row terminal and lower row terminal present Z shape;Middle clamping sheet, middle clamping sheet and lower row terminal injection form first injection molding piece;A plurality of pressing grooves are formed on the first injection molding piece, a plurality of steps are separated between a plurality of pressing grooves, and a glue passing groove is also formed on the first injection molding piece, the upper row terminal can be embedded in the pressing groove in the first injection molding piece and second injection molding is carried out, to form second injection molding piece;Shell, shell can be pressed and wrapped on second injection molding piece.

[0008] Optionally, the two ends of the upper row terminal and the lower row terminal are fixed with breakable pieces.

[0009] Optionally, the upper row terminal and the lower row terminal are staggered, and the breakable pieces of the upper row terminal and the lower row terminal can be mutually attached.

[0010] Optionally, the upper and lower terminals have connecting holes on the flaps facing away from the socket ends, and the connecting holes of the two flaps overlap.

[0011] Optionally, there are two middle clips, which are fixed by a fixing piece. The fixing piece can be broken off and removed after the two middle clips and the lower row of terminals are injection molded to form the first injection molded part.

[0012] Optionally, the fixing plate is provided with multiple limiting holes.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a USB C anti-short-circuit connector, which has the following beneficial effects:

[0015] 1. This utility model provides multiple pressure grooves on the first injection molded part, which are separated by multiple steps. During the first and second injection molding, the plastic bonding surfaces are in the vertical direction, that is, the upper row of terminals and the lower row of terminals are staggered. The upper row of terminals are partially embedded in the pressure grooves, forming a staggered filling after the second injection molding. This avoids the formation of a bonding line during the first and second injection molding, which could cause moisture to flow in and cause a micro short circuit.

[0016] 2. This utility model provides a flow groove for the second injection by reserving a flow groove between Vbus and GND during the first injection molding, which facilitates the flow of plastic material during the injection molding process. After the second injection molding, there is plastic isolation between Vbus and GND, which avoids micro-short circuits caused by the connection line between the two injection molding processes.

[0017] 3. This utility model uses an alternating arrangement of upper and lower rows of terminals. The alternating arrangement of upper and lower rows of terminals can make more effective use of limited space. While ensuring a sufficient number of terminals are arranged, it reduces the space occupied by the entire terminal block. The folding tabs of the upper and lower rows of terminals can fit together, which can reduce production failures or errors caused by uneven terminal arrangement, and improve production efficiency and product quality consistency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the finished product structure of this utility model;

[0019] Figure 2 It shows Figure 1 A front view structural diagram;

[0020] Figure 3 A schematic diagram of the structure of the second injection molded part is shown;

[0021] Figure 4 A schematic diagram of the structure of the first injection molded part is shown;

[0022] Figure 5The structure schematic diagram when the first injection is shown;

[0023] Figure 6 The structure schematic diagram when the second injection is shown;

[0024] Figure 7 The structure schematic diagram when the assembly is shown.

[0025] In the figure: 1, the upper row of terminals; 2, the lower row of terminals; 3, the middle clamping piece; 4, the first injection part; 5, the pressing groove; 6, the step; 7, the glue channel; 8, the second injection part; 9, the shell; 10, the folding piece; 11, the connecting hole; 12, the fixed piece; 13, the limiting hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Embodiment: please refer to Figures 1 to 7 According to the embodiment of the utility model, a technical scheme is provided: a USB C anti-micro short circuit connector, comprising: a terminal structure, comprising the upper row of terminals 1 and the lower row of terminals 2, the upper row of terminals 1 and the lower row of terminals 2 present Z-shaped; the middle clamping piece 3, the middle clamping piece 3 and the lower row of terminals 2 form the first injection part 4 after injection; a plurality of pressing grooves 5 are formed on the first injection part 4, the plurality of pressing grooves 5 are separated by a plurality of steps 6, and a glue channel 7 is also formed on the first injection part 4; the upper row of terminals 1 can be embedded in the pressing groove 5 in the first injection part 4 and second injection, forming the second injection part 8; the shell 9 can be pressed and wrapped on the second injection part 8.

[0028] The USB C anti-micro short circuit connector with the above structure, by setting a plurality of pressing grooves 5 on the first injection part 4, the plurality of pressing grooves 5 are separated by a plurality of steps 6, during the first injection and the second injection, the plastic combination surface is in the vertical direction, that is, the upper row of terminals 1 and the lower row of terminals 2 are staggered, the upper row of terminals 1 is partially embedded in the pressing groove 5, and the staggered filling is formed after the second injection, which avoids the combination line caused by the first injection and the second injection during the forming, and the water flows into through the combination line to cause the micro short circuit, and the glue channel 7 for the second injection is reserved between Vbus and GND during the first injection forming, which facilitates the flow of plastic material during injection molding, and there is plastic isolation between Vbus and GND after the second injection, which avoids the micro short circuit caused by the combination line of the second injection.

[0029] The upper row of terminals 1 and the lower row of terminals 2 are fixed with the bending pieces 10 at both ends, before injection molding, the upper row of terminals 1 and the lower row of terminals 2 are relatively long and easy to bend, the bending pieces 10 are fixed at both ends of the upper row and the lower row of terminals, which adds support and reinforcement structure to the upper row of terminals 1 and the lower row of terminals 2. It can limit the excessive bending of the terminals in all directions, especially under the action of accidental external force that may be encountered during production, transportation or assembly, effectively prevent unnecessary bending deformation of the terminals due to stress, thereby ensuring the straightness and shape accuracy of the terminals, ensuring that they can work normally during subsequent injection molding and use, and will not affect their electrical performance or the matching accuracy with other components, etc. When the injection molding process is completed, the bending pieces 10 can be removed, making the product more simple and beautiful.

[0030] The upper row of terminals 1 and the lower row of terminals 2 are staggered, the staggered upper row of terminals 1 and the lower row of terminals 2 can more effectively utilize the limited space, while ensuring a sufficient number of terminals arranged, reducing the space volume occupied by the entire terminal row, the bending pieces 10 of the upper row of terminals 1 and the lower row of terminals 2 can be attached to each other, which can reduce production failures or errors caused by irregular terminal arrangement, and improve production efficiency and product quality consistency.

[0031] The bending pieces 10 of the upper row of terminals 1 and the lower row of terminals 2 are provided with connecting holes 11 facing away from the plug end, the connecting holes 11 of the two bending pieces 10 coincide, before injection molding, by inserting a suitable fixing pin, rivet or other connecting piece into the coinciding connecting holes 11, the bending pieces 10 of the upper row of terminals 1 and the lower row of terminals 2 can be further firmly connected together. This helps to enhance the structural stability of the entire terminal row, preventing relative displacement or misalignment between the upper row of terminals 1 and the lower row of terminals 2 due to external forces during production, transportation or storage, thereby ensuring the overall accuracy and consistency of the terminal row, ensuring that the subsequent injection molding and assembly processes can proceed smoothly.

[0032] The middle clamping pieces 3 are two, the two middle clamping pieces 3 are fixed by the fixing piece 12, the fixing piece 12 can be broken off after the first injection molding piece 4 is formed after the two middle clamping pieces 3 and the lower row of terminals 2 are injection molded, the fixing piece 12 is used to fix the two middle clamping pieces 3 together to form a relatively stable combined structure. Through the connection of the fixing piece 12, the two middle clamping pieces 3 can work cooperatively, better exerting their above-mentioned functions in the terminal structure, and ensuring that they will not easily displace or spread apart in the early stage of the entire production process, providing a stable internal structure basis for the subsequent injection molding process.

[0033] A plurality of limiting holes 13 are formed in the fixed sheet 12, which can be precisely matched with corresponding protrusions or positioning pins on other components during assembly. For example, when assembling the middle clamping sheet 3 and the lower row of terminals 2 with the upper row of terminals 1, the positioning structure on the upper row of terminals 1 or other related components can be inserted into the limiting holes 13 of the fixed sheet 12, thereby achieving quick and accurate positioning, ensuring that the relative positional relationship between the components is accurate, and improving the consistency of assembly efficiency and product quality.

[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A USB-C micro-short-circuit-proof connector, characterized in that The utility model relates to a terminal structure, including: Terminal structure, including upper row terminal (1) with lower row terminal (2), upper row terminal (1) with lower row terminal (2) presents Z shape; Middle clamping piece (3), middle clamping piece (3) forms first injection molding piece (4) after injection molding with lower row terminal (2); Multiple pressing grooves (5) are set up on first injection molding piece (4), multiple pressing grooves (5) are separated by multiple steps (6), and glue groove (7) is also set up on first injection molding piece (4), and upper row terminal (1) can be embedded in pressing groove (5) in first injection molding piece (4) and carry out second injection molding, and form second injection molding piece (8); Shell (9), shell (9) can be pressed and wrapped on second injection molding piece (8).

2. The USB Type-C micro-short circuit prevention connector of claim 1, wherein: Two ends of upper row terminal (1) with lower row terminal (2) are fixed with breakable piece (10).

3. The USB Type-C micro-short circuit prevention connector of claim 2, wherein: Upper row terminal (1) with lower row terminal (2) staggered arrangement, the breakable piece (10) of upper row terminal (1) with lower row terminal (2) can mutually adhere.

4. The USB Type-C micro-short circuit prevention connector of claim 3, wherein: The breakable piece (10) of upper row terminal (1) with lower row terminal (2) away from the plug end is set up with connecting hole (11), and the connecting hole (11) of two breakable pieces (10) coincides.

5. The USB Type-C micro-short circuit prevention connector of claim 1, wherein: Middle clamping piece (3) is two, two middle clamping pieces (3) are fixed through fixed sheet (12), and fixed sheet (12) can be broken and removed after lower row terminal (2) is injection molded with two middle clamping pieces (3) and forms first injection molding piece (4).

6. The USB Type-C micro-short circuit prevention connector of claim 5, wherein: Multiple limiting holes (13) are set up on fixed sheet (12).

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