TYPE C connector with electric spark prevention function

Abstract

The invention discloses a TYPE C connector with an electric spark prevention function, relates to the field of connectors, and solves the problem that the safety needs to be improved due to the fact that electric sparks are easily generated when an existing terminal is disconnected due to the fact that the shape of the existing terminal is single, and adopts the following scheme that the TYPE C connector comprises a port male seat and a port female seat which are inserted with each other; the port male seat is provided with a PCB, a clamping hook, terminals and a rubber core from back to front, and the front end of the PCB is provided with the terminals which are arranged at intervals through the clamping hook in a clamping manner; the main body of the terminal is a U-shaped clamp clamped on the clamping hook; according to the TYPE C connector with the electric spark prevention function, through arrangement of the terminal structure, the communication effect can be ensured, through arrangement of the upper tongue piece and the lower tongue piece at the front end of the terminal, corresponding communication can be achieved from the top side and the bottom side, meanwhile, through arrangement of the structure, a signal can be given out when connection is disconnected in advance, and therefore the electric spark prevention function is achieved. Therefore, the charging protocol chip is immediately switched to low voltage and small current for charging, and no electric spark is generated at the moment when the plug is completely disconnected.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to a TYPE C connector with a spark prevention function. Background Art

[0002] The existing TYPE C connector products have charging functions of traditional 5V voltage charging and PD protocol fast charging. Fast charging is divided into 20V / 5A / 100W and 48V / 5A / 240W. Currently, 20V / 5A / 100W is widely used in the market, but 48V / 5A / 240W has not yet been widely used;

[0003] After searching, the application with patent number 202122000893.8 discloses a Type-C connector with a protective function, including an insulating body, a ground terminal, a power terminal, a CC terminal and a shielding shell; the insulating body has an insertion cavity; the ground terminal, the power terminal and the CC terminal are all arranged on the insulating body; the shielding shell is covered outside the insulating body; the CC terminal includes a front section and a rear section separated from each other, and a PTC thermistor is arranged in the insulating body, one end of the PTC thermistor is conductively connected to the front section, and the other end of the PTC thermistor is conductively connected to the rear section. By connecting the front section, the PTC thermistor and the rear section in series, when the connector is working, the PTC thermistor senses the surrounding temperature. When the temperature rises to 90°C, the PTC thermistor will automatically cut off the power, so that the connector is in a non-working state. After the temperature rise around the connector drops, the PTC thermistor resumes power supply, and the connector resumes working state, effectively preventing the connector from overheating and eventually damaging the connector;

[0004] The above application document achieves the effect of efficient protection by automatically cutting off the power as the temperature changes through the settings of each component. However, in the existing 48V / 5A / 240W charging process, as shown in the attached Figure 3 As shown in the figure, the terminal shape is set, when the male socket is inserted, the positive and negative poles are connected, and charging starts. During charging, the voltage is low and the voltage value is fixed; when the male socket is unplugged, the positive and negative poles are disconnected, and charging ends. At the moment when the user pulls out the plug to disconnect it, electric sparks are easily generated, resulting in safety risks.

[0005] Therefore, we propose a TYPE C connector with a spark prevention function. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a TYPE C connector with a spark prevention function, which solves the problem that the existing terminals are single in shape and easily generate sparks when disconnected, and the safety needs to be improved.

[0007] To achieve the above object, the present invention is implemented by the following technical scheme: A TYPE C connector with spark prevention function, comprising a male and female port seat that are plugged into each other, the male port seat is provided with a PCB board, a hook, a terminal and a rubber core from back to front, and the front end of the PCB board is clamped with terminals arranged in intervals through the hook;

[0008] The main body of the terminal is a U-shaped card mounted on the card hook, an upper tongue piece is arranged on the top side of the front end of the U-shaped card, a lower tongue piece is arranged on the bottom side of the front end of the U-shaped card, and the terminal is mounted on the gold finger in the female seat through the upper tongue piece and the lower tongue piece at the front end;

[0009] The length of the upper tongue piece is 1.5 times that of the lower tongue piece. A contact protruding downward is provided on the bottom side of the front end of the upper tongue piece, and a contact protruding upward is provided on the top side of the front end of the lower tongue piece. The upper and lower groups of contacts are respectively clamped on the gold fingers of the female socket tongue piece.

[0010] As a preferred solution of the TYPE C connector with spark prevention function of the present invention, the conducting strip at the front end of the U-shaped plate in the terminal forms a Y-shaped structure with the upper tongue piece and the lower tongue piece;

[0011] Among them, the arrangement of the upper tongue and the lower tongue structure at the front end of the terminal can ensure the stability of the plug-in connection between it and the female socket, while also ensuring the conductive effect.

[0012] As a preferred solution of the TYPE C connector with spark prevention function described in the present invention, the outer sides of the PCB board, the hook and the terminal are covered with a rubber core, and the outer wall of the rubber core is equipped with a stretch shell that is clamped on the inner side of the female socket port;

[0013] Among them, the setting of the rubber core can effectively protect the PCB board, hooks and terminals inside it.

[0014] As a preferred solution of the TYPE C connector with spark prevention function described in the present invention, a spring slot is provided at the top of the front end of the rubber core, and an EMI spring is mounted in the spring slot;

[0015] Among them, the role of the EMI shrapnel during the charging process is mainly to prevent electromagnetic interference. It ensures that the signal transmission between the male and female ports is not interfered by maintaining good electrical contact.

[0016] As a preferred solution of the TYPE C connector with spark prevention function of the present invention, the hook includes a clamping portion in the middle and tail pressure handles at both ends of the rear side thereof, and side pressure handles for clamping the terminals arranged at intervals from the side are arranged at the left and right ends of the front side of the clamping portion, and a clamping handle in opposite position is also arranged on the front side of the clamping portion;

[0017] Among them, the setting of the hook facilitates the corresponding conduction between the PCB board and the terminal, and the setting of the shape of the hook structure facilitates the adaptation to the shape of the terminal and the PCB board to ensure the assembly effect.

[0018] As a preferred solution of the TYPE C connector with spark prevention function of the present invention, the hook is integrally punched by a punching machine, and the hook is made of stainless steel;

[0019] Among them, the setting of the hook structure is suitable for mass production thereof, while the setting of the material can ensure its rigidity and signal transmission effect.

[0020] As a preferred solution of the TYPE C connector with spark prevention function described in the present invention, the rubber core is integrally injection molded by an injection molding device, and the rubber core is made of high temperature resistant plastic material by injection molding;

[0021] Among them, the setting of the rubber core can ensure its high temperature resistance, thereby achieving the corresponding protection effect, preventing dust from entering its inner side and adhering to the PCB board end, hook and terminal.

[0022] As a preferred solution of the TYPE C connector with spark prevention function of the present invention, the terminal is integrally stamped by a stamping machine, and the terminal is made of copper alloy material;

[0023] Among them, the setting of the terminal structure is suitable for mass production thereof, and the setting of the material can ensure its rigidity and signal transmission effect.

[0024] As a preferred solution of the TYPE C connector with spark prevention function of the present invention, the stretch shell is integrally stretched and formed by a stretching machine, and the stretch shell is made of stainless steel material;

[0025] Among them, the setting of the stretch shell can, on the one hand, effectively protect the inner rubber core and the terminals, hooks and PCB board therein, and on the other hand, ensure the overall clamping effect between the male and female ports.

[0026] The present invention provides a TYPE C connector with a spark prevention function, which has the following beneficial effects:

[0027] 1. The TYPE C connector with spark prevention function can ensure its connectivity through the terminal structure, and the upper tongue and the lower tongue at the front end of the terminal are set. When the male and female ports are plugged in, the terminal is clamped on the PIN arrangement pins on the inner side of the female port through the upper tongue and the lower tongue, and the electrical signal is transmitted by the upper and lower tongues. At the same time, the structure can achieve corresponding connectivity from both the top and bottom sides. At the same time, the structure can give a signal when the connection is disconnected in advance, so that the charging protocol chip immediately switches to low voltage and low current charging. No sparks will be generated at the moment the plug is completely disconnected, eliminating safety risks and solving the problem that the existing terminals are single in shape, which easily generates sparks when disconnected, and the safety needs to be improved.

[0028] 2. The TYPE C connector with spark prevention function eliminates safety threats by changing the terminal structure shape. At the same time, the preparation method of the terminal punching machine integrated molding and the setting of its materials are low-cost and suitable for large-scale unified production and manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 It is a structural diagram of the existing port male socket when being inserted;

[0031] Figure 3 This is a schematic diagram of the structure of the male and female sockets of the present invention that are not fully inserted;

[0032] Figure 4 It is a schematic diagram of the structure of the present invention when it is inserted into place;

[0033] Figure 5 It is a schematic diagram of the structure of the present invention during separation;

[0034] Figure 6 This is a schematic diagram of the structure of the port female socket of the present invention when it is disassembled;

[0035] Figure 7 It is a schematic diagram of the structure of the terminal of the present invention.

[0036] In the figure: 1. Port male socket; 11. PCB board; 12. Hook; 13. Terminal; 131. Upper tongue; 132. Lower tongue; 14. Rubber core; 141. Shrapnel slot; 15. Stretching shell; 16. EMI shrapnel; 2. Female socket. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-7 The embodiment of the present invention provides a technical solution: a TYPEC connector with a spark prevention function, a male port 1 and a female port 2 that are plugged in, the male port 1 is provided with a PCB board 11, a hook 12, a terminal 13 and a rubber core 14 from back to front, and the front end of the PCB board 11 is clamped with the terminals 13 arranged in an interval manner through the hook 12; the main body of the terminal 13 is a U-shaped card clamped on the hook 12, the top side of the front end of the U-shaped card is provided with an upper tongue piece 131, the bottom side of the front end of the U-shaped card is provided with a lower tongue piece 132, and the terminal 13 is clamped on the gold finger in the female port 2 through the upper tongue piece 131 and the lower tongue piece 132 at its front end; the length of the upper tongue piece 131 is 1.5 times that of the lower tongue piece 132, the bottom side of the front end of the upper tongue piece 131 is provided with a contact protruding downward, the top side of the front end of the lower tongue piece 132 is provided with a contact protruding upward, and the upper and lower groups of contacts are respectively clamped on the gold fingers of the tongue piece of the female port 2;

[0039] Among them, the TYPE C connector with the function of preventing electric sparks can ensure its connectivity effect through the setting of the terminal 13 structure, and the setting of the upper tongue piece 131 and the lower tongue piece 132 at the front end of the terminal 13, when the port male socket 1 and the female socket 2 are inserted, the terminal 13 is clamped on the PIN arrangement pins on the inner side of the female socket 2 through the upper tongue piece 131 and the lower tongue piece 132, and is used to transmit electrical signals. At the same time, its structural setting can achieve corresponding connectivity from both the top and bottom sides. At the same time, its structural setting can give a signal when the connection is disconnected in advance, so that the charging protocol chip immediately switches to low voltage and small current charging. No sparks will be generated at the moment the plug is completely disconnected, eliminating safety risks and solving the problem that the existing terminal 13 is single in shape, which makes it easy to generate sparks when disconnected and the safety needs to be improved.

[0040] Embodiment 2:

[0041] The conductive strip at the front end of the U-shaped plate in the terminal 13 forms a Y-shaped structure with the upper tongue piece 131 and the lower tongue piece 132; wherein, the arrangement of the upper tongue piece 131 and the lower tongue piece 132 at the front end of the terminal 13 can ensure the stability of the plug-in connection between it and the female socket 2, while also ensuring the conductive effect.

[0042] The outer sides of the PCB board 11, the hook 12 and the terminal 13 are covered with a rubber core 14, and the outer wall of the rubber core 14 is equipped with a stretch shell 15 which is clamped on the inner side of the port of the female socket 2; wherein, the setting of the rubber core 14 can effectively protect the PCB board 11, the hook 12 and the terminal 13 inside it.

[0043] A shrapnel slot 141 is provided at the top of the front end of the rubber core 14, and an EMI shrapnel 16 is mounted in the shrapnel slot 141; wherein, the EMI shrapnel mainly prevents electromagnetic interference during the charging process, and ensures that the signal transmission between the port male socket 1 and the female socket 2 is not interfered with by maintaining good electrical contact.

[0044] The hook 12 includes a clamping portion in the middle and tail pressure handles at both ends of its rear side, and side pressure handles are arranged at the left and right ends of the front side of the clamping portion for clamping the terminals 13 arranged at intervals from the side, and a clamping handle with a relatively opposite position is also arranged on the front side of the clamping portion; wherein, the setting of the hook 12 is convenient for corresponding conduction between the PCB board 11 and the terminal 13, and the setting of the structural shape of the hook 12 is convenient for matching with the shape of the terminal 13 and the PCB board 11 to ensure the assembly effect.

[0045] The hook 12 is integrally punched by a punching machine, and is made of stainless steel. The structure of the hook 12 is suitable for batch production, and the material setting can ensure its rigidity and signal transmission effect.

[0046] The rubber core 14 is integrally injection molded by an injection molding device, and the rubber core 14 is made of high-temperature resistant plastic material by injection molding; wherein, the setting of the rubber core 14 can ensure its high-temperature resistance effect, thereby achieving a corresponding protective effect, and preventing dust from entering its inner side and adhering to the end of the PCB board 11, the hook 12 and the terminal 13.

[0047] The terminal 13 is integrally stamped by a stamping machine, and the terminal 13 is made of a copper alloy material; wherein the structure of the terminal 13 is suitable for batch production thereof, and the material setting can ensure its rigidity and signal transmission effect.

[0048] The stretch shell 15 is integrally stretched and formed by a stretching machine, and is made of stainless steel. The setting of the stretch shell 15 can, on the one hand, effectively protect the inner rubber core 14 and the terminals 13, hooks 12 and PCB board 11 therein, and on the other hand, ensure the overall clamping effect between the male port 1 and the female port 2.

[0049] In addition, the TYPE C connector with spark prevention function eliminates safety threats by changing the structural shape of the terminal 13. At the same time, the preparation method of the terminal 13 integrally formed by a stamping machine and the setting of its materials are low-cost and suitable for large-scale unified production and manufacturing.

[0050] The working principle and use process of the present invention: When the device is required to insert the male and female ports 1 and 2, the shape of the terminal 13 at the contact point is used to play the role of a switch. When the male port 1 is not inserted into place, the front end of the tongue of the female port 2 does not contact the lower tongue 132 of the terminal, and the upper tongue 131 of the terminal does not contact the gold finger of the female port; when the male port 1 is inserted into the female port and inserted into place, due to the interference between the lower tongue 132 of the terminal and the front end of the tongue of the female port 2, the Y-shaped structure at the front end of the terminal 13 is forced to undergo elastic deformation and displacement. At this time, the upper tongue 131 of the terminal is in contact with the gold finger of the female port tongue, and the male port 1 and the female port 2 transmit current and signals normally; when the male port 1 is pulled out of the female port 2, the interference between the lower tongue 132 of the terminal and the front end of the female port tongue is first removed, and the Y-shaped structure at the front end of the terminal 13 is restored to its original position due to elasticity, that is, the upper tongue 131 of the terminal and the gold finger of the female port tongue are disconnected, and the chip receives the disconnection signal and immediately adjusts to low voltage and low current. At this time, the power PIN and other signal PINs are still in a normal transmission state; when the male socket 1 continues to be unplugged from the female socket 2, all terminals of the male socket 1 are completely separated from the gold fingers on the tongue of the female socket 2, charging and signal transmission are stopped, and no electric sparks will be generated at the moment of unplugging and disconnection, eliminating safety risks.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A TYPE C connector with spark prevention function, characterized in that: The invention comprises a male port seat (1) and a female port seat (2) which are plugged into each other, wherein the male port seat (1) is provided with a PCB board (11), a hook (12), a terminal (13) and a rubber core (14) from the back to the front, and the front end of the PCB board (11) is clamped with the terminals (13) arranged in a spaced manner through the hook (12); The main body of the terminal (13) is a U-shaped card mounted on the hook (12), an upper tongue piece (131) is arranged on the top side of the front end of the U-shaped card, and a lower tongue piece (132) is arranged on the bottom side of the front end of the U-shaped card, and the terminal (13) is mounted on the gold finger in the female seat (2) through the upper tongue piece (131) and the lower tongue piece (132) at the front end of the terminal (13); The length of the upper tongue piece (131) is 1.5 times that of the lower tongue piece (132); a contact protruding downward is arranged on the bottom side of the front end of the upper tongue piece (131); a contact protruding upward is arranged on the top side of the front end of the lower tongue piece (132); and the upper and lower groups of contacts are respectively clamped on the gold fingers of the tongue piece of the female socket (2).

2. A TYPE C connector with spark prevention function according to claim 1, characterized in that: The conducting strip at the front end of the U-shaped plate in the terminal (13) and the upper tongue piece (131) and the lower tongue piece (132) form a Y-shaped structure.

3. The TYPE C connector with spark prevention function according to claim 1, characterized in that: The outer sides of the PCB board (11), the hook (12) and the terminal (13) are covered with a rubber core (14), and the outer wall of the rubber core (14) is equipped with a stretch shell (15) which is clamped on the inner side of the port of the female socket (2).

4. The TYPE C connector with spark prevention function according to claim 1, characterized in that: A spring clip groove (141) is provided at the top of the front end of the rubber core (14), and an EMI spring clip (16) is mounted in the spring clip groove (141).

5. The TYPE C connector with spark prevention function according to claim 1, characterized in that: The hook (12) comprises a clamping portion in the middle and tail pressing handles at both ends of its rear side, and side pressing handles for clamping the terminals (13) arranged at intervals from the side are arranged at the left and right ends of the front side of the clamping portion, and a clamping handle in an opposite position is also arranged on the front side of the clamping portion.

6. The TYPE C connector with spark prevention function according to claim 1, characterized in that: The hook (12) is integrally punched and formed by a punching machine, and the hook (12) is made of stainless steel.

7. The TYPE C connector with spark prevention function according to claim 1, characterized in that: The rubber core (14) is integrally injection molded by an injection molding device, and the rubber core (14) is made by injection molding of a high-temperature resistant plastic material.

8. The TYPE C connector with spark prevention function according to claim 1, characterized in that: The terminal (13) is integrally stamped and formed by a stamping machine, and the terminal (13) is made of a copper alloy material.

9. The TYPE C connector with spark prevention function according to claim 1, characterized in that: The stretch shell (15) is integrally stretched and formed by a stretching machine, and the stretch shell (15) is made of stainless steel material.

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