A high-voltage resistant magnetic connector

Abstract

The present invention discloses a high-voltage resistant magnetic connector, including a socket composed of a socket shell, a pressure plate, a magnet and two groups of pins, and a plug composed of a plug shell, an iron column, a PCB electric control board and two groups of jacks corresponding to the pins, wherein the inner cavity at the rear of the socket is formed with a compartment compatible with the corresponding pressure plate, the pressure plate with pre-installed pins is aligned and assembled on the compartment and encapsulated with glue, the inner cavity at the head of the socket is formed with a docking hole and a magnet is embedded and fixed; the inner cavity of the plug shell facing the docking direction is formed with a docking column and a docking platform, and the shaft is fixed with the iron column, the two groups of jacks are respectively assembled and positioned in the docking platform and each docking column, and the tail end of the plug shell is encapsulated with TPU soft glue. The connector structure optimization scheme of the present invention is applied, and the pins and jacks are firmly positioned by optimizing the arrangement and through the partition and glue, and the creepage distance is increased; at the same time, the resistance to connector separation is provided by adding a magnetic suction component, which improves the docking speed and connection stability.

Description

Technical Field

[0001] The present invention relates to a connector structure, in particular to an alternating current connector structure with connection and separation signal recognition functions, belonging to the technical field of electric connectors. Background Art

[0002] With the technological breakthroughs in electronic application technology and various home appliances and transportation production industries, the interactive transmission of various high-power currents through electrical connectors has become the first choice in finished product design, in order to ensure that when equipment fails, the damaged parts can be quickly identified, repaired or replaced, in order to extend the service life of the product.

[0003] This type of high-voltage electrical connector usually consists of two parts: a socket and a plug. In addition to using interference fit to maintain connection strength and signal stability, there is also an external locking mechanism to lock the relative position of the two. However, the external locking mechanism greatly increases the complexity of the connector structure and is not suitable for use with micro connectors. For some multi-core micro connectors, the interference fit between the shells is obviously not enough to ensure the connection strength, and using the same metal material to process the bite shape of the pin and socket to ensure the docking strength of the connector is also very difficult for the already small and fragile metal parts, and the high frequency of plugging and unplugging is prone to deformation, making it difficult to achieve the ideal docking strength. Summary of the invention

[0004] The purpose of the present invention is to provide a high-voltage resistant magnetic connector to improve the connector docking stability and identify the connection status.

[0005] The technical solution of the present invention to achieve the above-mentioned purpose is a high-voltage resistant magnetic suction connector, including a socket and a plug, characterized in that: the socket is composed of a socket shell, a pressure plate, a magnet and two groups of pins, wherein the middle part of the socket shell is formed as a maximum outer diameter ring separating the head and the tail, the outer wall of the tail is formed with an assembly thread, and the inner cavity of the tail is formed with a compartment corresponding to the pressure plate compatible therein, the pressure plate is provided with two separated parts of perforations corresponding to the two groups of pins, and the pressure plate with pre-installed pins is aligned and installed on the compartment and encapsulated with glue, and the inner cavity of the head is formed with a flush with the butt end face The boss is provided with a plurality of docking holes facing the plug docking based on the positioning of the pin, and the gap between the side wall of the boss and the inner wall of the head is adapted to the plug, and the magnet is embedded and fixed in the axial hole of the boss; the plug is assembled by a plug shell, an iron column, a PCB electronic control board and two groups of jacks corresponding to the pins, wherein the inner cavity of the plug shell facing the docking direction is formed with a docking column and a docking platform and the shaft is fixed with the iron column, one group of jacks is connected to the PCB electronic control board and is positioned as a whole in the docking platform, and the other group of jacks is penetrated and positioned in each docking column, and the tail end of the plug shell opposite to the docking direction is injection-molded with TPU soft glue for packaging.

[0006] Furthermore, a group of pins corresponding to the pressure plate is provided with clustered perforations, and another group of pins is provided with ring-shaped discretely distributed perforations, and the two parts of perforations are separated by a retaining wall of the pressure plate.

[0007] Furthermore, the partition is provided with an expansion chamber and a plurality of independent sub-chambers through a partition plate, wherein the portion of the pressure plate with clustered perforations and the retaining wall are connected and compatible with the expansion chamber, and the portion of the pressure plate with discrete perforations are connected and compatible with the independent sub-chambers one by one.

[0008] Furthermore, the axial direction of the pin assembly and positioning is parallel to the axial direction of the socket.

[0009] Furthermore, the socket is equipped with an anti-loosening gasket and a nut. The anti-loosening gasket is sleeved on the tail of the socket and positioned between the maximum outer diameter ring and the nut. The nut is screwed to the assembly thread at the tail of the socket.

[0010] Furthermore, a heat insulation baffle is overlapped on the rear side of the PCB electric control board.

[0011] Furthermore, a gripping portion is formed on the surface of the TPU soft rubber that is injection-molded and encapsulated at the rear end of the plug.

[0012] The electrical connector structure optimization scheme of the present invention is progressive: by optimizing the arrangement of pins and sockets and firmly positioning them through partitions and glue potting, the creepage distance can be increased; at the same time, by adding a magnetic suction component, resistance to connector separation is provided, thereby improving the docking speed and connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the high-voltage resistant magnetic suction connector of the present invention in a separated state.

[0014] Figure 2 yes Figure 1 Schematic diagram of the split structure of the connector shown. DETAILED DESCRIPTION

[0015] The specific implementation modes of the present invention will be further described below in conjunction with the accompanying drawings of the embodiments, so that the technical solution of the present invention is easier to understand and grasp, thereby making a clearer definition of the protection scope of the present invention.

[0016] Conventional connectors of this type include a socket and a plug. The designers of the present invention rely on design experience and innovatively propose an optimized structural design for a high-voltage resistant magnetic connector. The structural features of the connector are summarized as follows: Figure 1 and Figure 2 shown.

[0017] The socket 1 is composed of a socket shell 11, a pressure plate 12, a magnet (not shown) and two groups of pins (not all shown), wherein the middle part of the socket shell 11 is formed into a maximum outer diameter ring 111 separating the head and the tail, the outer wall of the tail is formed with an assembly thread 112, and the inner cavity of the tail is formed with a compartment 113 corresponding to the pressure plate. The pressure plate 12 is provided with two separated perforations corresponding to the two groups of pins, and the pressure plate 12 pre-installed with pins is aligned and assembled on the compartment 113 and sealed with glue, and the inner cavity of the head is formed with a boss flush with the docking end face, and the boss is provided with a plurality of docking holes 114 facing the plug docking based on the positioning of the pins, and the gap between the side wall of the boss and the inner wall of the head is adapted to the plug, and the magnet with strong NdFeB magnet is embedded and fixed in the shaft hole 115 of the boss. Furthermore, the plug 2 is assembled from a plug shell 21, an iron column 22, a PCB electronic control board 23 and two groups of jacks corresponding to the pins (not all of which are shown in the figure), wherein the inner cavity of the plug shell 21 facing the docking direction is formed with a docking column 211 and a docking platform 212, and the shaft is fixedly provided with an iron column 22 through a through hole 213, one group of jacks is connected to the PCB electronic control board 23 and is positioned as a whole in the docking platform 212, and the other group of jacks is passed through and positioned in each docking column 211, and the tail end of the plug shell 21 opposite to the docking direction is encapsulated by injection-molded TPU soft glue 5.

[0018] In the above overview, it is necessary to explain in detail that the above two groups of pins are distinguished by function, and the wiring is completed by crimping. One group of pins is small and is mainly used to connect the PCB electronic control board and to identify the connection or separation status of the connector. The current of this part of the signal is small and suitable for dense arrangement. The other group of pins is mainly used for the transmission of high-voltage AC signals. In this optimized design, each terminal pin is separated and reliable auxiliary isolation measures are taken, thereby greatly increasing the creepage distance and improving the performance of the connector.

[0019] From the perspective of further detailed structural features, the above-mentioned pressing plate 12 is provided with perforations 121a in a fan-shaped clustered shape corresponding to one group of pins, and the other group of pins is provided with perforations 121b in a ring-shaped discrete distribution, and the two parts of the perforations are separated by the retaining wall 122 of the pressing plate. The above-mentioned compartment 113 is provided with an expansion compartment 113a and a plurality of independent sub-compartments through the partition. When the pressing plate is installed in the compartment, the part of the pressing plate with clustered perforations and the retaining wall are installed and compatible with the expansion compartment 113a, which is mainly used to transmit low-voltage, low-current identification signals to isolate them from the surrounding high-voltage AC signals; and the part of the pressing plate with discrete perforations is installed one by one in the independent sub-compartment 113b, which is equivalent to each high-voltage signal pin having an independent chamber, and is encapsulated by glue to ensure the stability of signal transmission. In addition, the axial direction of the above-mentioned two groups of pins after each encapsulation and positioning must be guaranteed to be parallel to the axial direction of the socket to ensure smooth docking.

[0020] Usually, the socket has the characteristics of fixed assembly relative to the finished device, and based on the preset opening of the finished device shell, the socket also needs to have the characteristics of being removable and replaceable. Therefore, the socket is also equipped with an anti-loosening gasket 3 and a nut 4 (the nut specification is compatible with the assembly thread of the socket, and the M20 nut can be selected in the embodiment). The anti-loosening gasket 3 is sleeved on the tail of the socket and positioned between the maximum outer diameter ring 111 and the nut 3, and the nut 3 is screwed on the assembly thread 112 at the tail of the socket. The actual assembly process is briefly described as follows: insert the tail of the socket shell into the opening of the device shell, and then sleeve the anti-loosening gasket and screw the nut until the maximum outer diameter ring and the anti-loosening gasket on both sides clamp the opening and are clamped by the nut, then the socket assembly is completed, and the radial friction of the anti-loosening gasket can prevent the nut from reversing and loosening.

[0021] From the perspective of the plug, the above-mentioned plug shell is pre-installed with jacks and then the wires are welded separately, and some are welded to the PCB electronic control board to lead out the wires. Although TPU soft glue injection molding is used for packaging, the high temperature of injection molding will pose a threat to the sensors installed on the PCB electronic control board to a certain extent. As a preferred setting, a heat insulation baffle can be overlapped on the rear side of the PCB electronic control board to ensure the heat insulation of the PCB electronic control board during soft glue injection molding. Moreover, in order to facilitate the operability of the plug in and out operations, the surface of the TPU soft glue 5 injection-molded at the tail end of the plug is molded with a gripping portion 51, which is a concave arc surface with two backs to each other, which is more suitable for holding with two fingers.

[0022] From the above introduction to the electrical connector structure optimization scheme of the present invention and the detailed description of the embodiment shown in the figure, it can be seen that it has substantial characteristics and progress: by optimizing the arrangement of pins and sockets and firmly positioning them through partitions and glue pouring, and increasing the creepage distance, it can withstand 10KV high-voltage AC; at the same time, by adding a magnetic suction component, resistance to connector separation is provided, which improves the docking speed and connection stability.

[0023] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the scope of protection required by the present invention.

Claims

1. A high-voltage resistant magnetic connector, comprising a socket and a plug, characterized in that: The socket is composed of a socket shell, a pressure plate, a magnet and two groups of pins, wherein the middle part of the socket shell is formed into a maximum outer diameter ring separating the head and the tail, the outer wall of the tail is formed with an assembly thread, and the inner cavity of the tail is formed with a partition compatible with the corresponding pressure plate, the pressure plate is provided with a group of pins corresponding to a clustered perforation, and the other group of pins is provided with a ring-shaped discretely distributed perforation, and the two parts of the perforations are separated by the retaining wall of the pressure plate, and the partition is provided with an expansion bin and a plurality of independent sub-bins through the partition, the part of the pressure plate with clustered perforations and the retaining wall are assembled and compatible with the expansion bin, the part of the pressure plate with discrete perforations is assembled and compatible with the independent sub-bins one by one and is sealed with glue, the inner cavity of the head is formed with a boss flush with the docking end face, the boss is provided with a plurality of docking holes facing the plug docking based on the positioning of the pins, and the gap between the side wall of the boss and the inner wall of the head is adapted to the plug, and the magnet is embedded and fixed in the axial hole of the boss; The plug is composed of a plug shell, an iron column, a PCB electronic control board and two groups of jacks corresponding to the pins, wherein the inner cavity of the plug shell facing the docking direction is formed with a docking column and a docking platform and the shaft is fixedly connected to the iron column, one group of jacks is connected to the PCB electronic control board and is positioned as a whole in the docking platform, and the other group of jacks is passed through and positioned in each docking column, and the tail end of the plug shell opposite to the docking direction is injection-molded with TPU soft glue for packaging.

2. The high-voltage magnetic connector according to claim 1, characterized in that: The axial direction of the pin assembly and positioning is parallel to the axial direction of the socket.

3. The high-voltage magnetic connector according to claim 1, characterized in that: The socket is equipped with an anti-loosening gasket and a nut. The anti-loosening gasket is sleeved on the tail of the socket and positioned between the maximum outer diameter ring and the nut. The nut is screwed on the assembly thread of the tail of the socket.

4. The high-voltage magnetic connector according to claim 1, characterized in that: A heat insulation baffle is overlapped on the rear side of the PCB electric control board.

5. The high-voltage magnetic connector according to claim 1, characterized in that: A gripping portion is formed on the surface of the TPU soft rubber that is injection-molded and packaged at the rear end of the plug.

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