Identifiable power plug connector

Abstract

The utility model discloses a recognizable power supply connecting plug, which comprises a plugging end, an adapter base and a detection module, a switching port is arranged on one side of the plugging end, the adapter base comprises a base accommodating cavity and a switching terminal arranged on one side of the base accommodating cavity, the peripheral wall of the switching terminal is elastically connected with the inner wall of the switching port, and the detection module is arranged on the switching terminal. The detection modules are used for collecting electrical characteristic signals generated in the plugging operation, the detection modules are dispersedly arranged on a joint interface of the plugging end and the adapter base, and the detection modules are in signal transmission connection with the processing module arranged in the containing cavity of the base so as to analyze the electrical characteristic signals and carry out matching analysis on the electrical characteristic signals and preset values. According to the utility model, the conversion terminal and the conversion port adopt an elastic connection structure, so that the conversion terminal and the conversion port are inserted and fastened, and the problems of contact resistance rise, heating and the like caused by loose insertion can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy electric automobile technical field especially relates to a recognizable power plug. BACKGROUND

[0002] The power plug type exists significant difference because of voltage, current, frequency, physical structure and regional standard, and its characteristic directly influences equipment's operation safety, adaptation standard and implementation standard, and this kind of equipment needs to dynamically adjust output current threshold according to access plug type, and through plug modularization replacement design, can promote regional adaptability of equipment such as charging pile, reduces the hardware modification cost of multi-market development, realizes the automatic identification technology of plug type, can further give equipment adaptive capacity, realizes intelligent switching of safety protocol and working mode, thereby satisfies the demand of diversified environment and standardization control, so setting the adapter and the plug end head connection that can adapt to regional standard, in prior art, when the plug end head and the adapter base are plugged, when plugging is loose or improper, it is easy to cause the problems such as the increase of contact resistance, heating, and only a single detection module is arranged, and the data accuracy needs to be improved. SUMMARY

[0003] The application embodiment provides a recognizable power plug, and the adapter base and the plug end head are connected through the elastic connection structure of the adapter base and the plug end head, so that the adapter base and the plug end head are tightly plugged, and the problems such as the increase of contact resistance and heating caused by loose plugging can be avoided.

[0004] To achieve the above object, the utility model provides the following technical scheme: a recognizable power plug, comprising:

[0005] The plug end head is provided with a switching port on one side;

[0006] The adapter base comprises a base cavity, a switching terminal arranged on one side of the base cavity, and an elastic connection between the outer peripheral wall of the switching terminal and the inner wall of the switching port;

[0007] The detection module is used to collect electrical characteristic signals generated in the plugging operation, and the detection module is dispersedly arranged on the joint interface of the plug end head and the adapter base, and the detection module is connected with the processing module arranged in the base cavity through signal transmission to analyze the electrical characteristic signals and match the preset value.

[0008] Compared with the prior art, the utility model has the advantages that:

[0009] Through the dispersedly arranged detection module, the signals collected by multiple detection modules can be verified and supplemented, so as to support accurate adaptation of multiple plug types;

[0010] Meanwhile, the elastic connection structure adopted by the adapter terminal and the adapter port makes the adapter terminal and the adapter port tightly connected, which can avoid the problems of increased contact resistance and heating caused by loose connection, and is especially suitable for high-vibration environments (such as vehicle charging scenarios). In addition, the plug end is a separate module and can be quickly replaced. The adapter base can be compatible with new plug standards through software upgrade, without the need for overall hardware modification.

[0011] As an improvement, the outer peripheral wall of the adapter terminal is provided with elastic contact fingers in the axial direction, and a pressure-sensitive resistor is arranged at the root of the elastic contact fingers. The pressure-sensitive resistor is connected to the processing module through signal transmission. The root of the elastic contact finger is directly embedded in the pressure-sensitive resistor, which can accurately capture the micro-pressure changes caused by the deformation of the contact finger and feed back to the processing module in real time. When the contact pressure exceeds the threshold value (such as when the plug is not fully inserted, causing local pressure to be too high), a signal is triggered immediately to prompt the user to re-plug.

[0012] As an improvement, the detection module includes an inductance detection module and a capacitance detection module. A magnetically conductive alloy separation layer is arranged between the capacitance detection module and the inductance detection module to avoid magnetic field interference with power supply signals. The magnetically conductive alloy separation layer has high magnetic permeability and can constrain the stray magnetic field generated by the inductance detection module in a specific path, preventing it from penetrating into the capacitance detection module area. This makes the electric field measurement of the capacitance detection module not be disturbed by the alternating magnetic field, reducing the capacitance value detection error.

[0013] As an improvement, the inductance detection module includes a first adjustment block arranged on one side of the plug end close to the adapter base and capable of adjusting the embedding depth, a first matching groove arranged on one side of the adapter base corresponding to the first adjustment block, and an inductance winding distributed along the circumferential edge of the first matching groove. The first adjustment block is made of magnetically conductive material. By changing the embedding depth of the first adjustment block in the first matching groove, the real-time magnetic circuit parameters of the inductance detection module can be changed. The embedding depth of the first adjustment block made of magnetically conductive material changes directly, changing the magnetic circuit length and cross-sectional area of the inductance winding, so that the inductance value presents a linear gradient response.

[0014] As an improvement, the capacitance detection module includes a second adjustment block arranged on one side of the plug end close to the adapter base and capable of adjusting the embedding depth, a second matching groove arranged on one side of the adapter base corresponding to the second adjustment block, and a first and a second capacitance coupling sheet symmetrically distributed on the outer peripheral side wall of the second matching groove. The surface of the second adjustment block is covered with a dielectric layer. By changing the embedding depth of the second adjustment block in the second matching groove, the real-time capacitance value of the capacitance detection module can be changed. By combining the capacitance change and the magnetic field characteristics, the plug type can be comprehensively judged, avoiding single parameter misjudgment. In addition, the capacitance detection module changes the capacitance value through physical displacement, avoiding the parasitic effect of electronic components under high-frequency signals and reducing the risk of electromagnetic interference. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in detail below in combination with the drawings and specific embodiments:

[0016] Fig. 1 It is a kind of identifiable power plug structure schematic diagram;

[0017] Fig. 2 It is the schematic diagram of the cooperation of adapter port and adapter terminal structure.

[0018] The marks in the above-mentioned drawing are respectively: 1, plug end; 1.1, adapter port; 2, adapter base; 2.1, base cavity; 2.2, adapter terminal; 2.2.1, elastic contact finger; 2.2.2, pressure-sensitive resistor; 3, detection module; 3.1, inductance detection module; 3.1.1, first adjusting block; 3.1.2, first matching groove; 3.1.3, inductance winding; 3.2, capacitance detection module; 3.2.1, second adjusting block; 3.2.2, second matching groove; 3.2.3, first capacitance coupling piece; 3.2.4, second capacitance coupling piece; 4, magnetically permeable alloy separation layer. Specific embodiments

[0019] In the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "plane direction", "circumferential direction" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0020] As Figs. 1-2 Indicated, an identifiable power plug includes plug end 1, adapter base 2, detection module 3, and the one side of plug end 1 is equipped with adapter port 1.1, adapter base 2 includes base cavity 2.1, adapter terminal 2.2 arranged at the one side of base cavity 2.1, the outer peripheral wall of adapter terminal 2.2 is elastically connected with the inner wall of adapter port 1.1, and a plurality of detection modules 3 are used to collect electrical characteristic signals generated in plugging operation, and the detection modules 3 are dispersedly arranged at the joint interface of plug end 1 and adapter base 2, and the detection modules 3 are connected with processing module arranged inside base cavity 2.1 through signal transmission to analyze electrical characteristic signals and match analysis with preset plug type threshold.

[0021] The outer peripheral wall of adapter terminal 2.2 is dispersedly arranged with elastic contact finger 2.2.1 along the axial direction, and pressure-sensitive resistor 2.2.2 is arranged at the root of elastic contact finger 2.2.1, and the pressure-sensitive resistor 2.2.2 is connected with processing module through signal transmission.

[0022] The detection module 3 includes an inductance detection module 3.1 and a capacitance detection module 3.2. A magnetic alloy separator 4 is provided between the capacitance detection module 3.2 and the inductance detection module 3.1 to avoid magnetic field interference with the power signal.

[0023] The inductance detection module 3.1 includes a first adjusting block 3.1.1 with adjustable embedment depth disposed on one side of the plug-in terminal 1 near the adapter base 2, a first mating groove 3.1.2 disposed on one side of the adapter base 2 corresponding to the first adjusting block 3.1.1, and an inductance winding 3.1.3 distributed circumferentially outward along the first mating groove 3.1.2. The first adjusting block 3.1.1 is made of magnetically conductive material. The real-time magnetic circuit parameters of the inductance detection module 3.1 are changed by changing the embedment depth of the first adjusting block 3.1.1 into the first mating groove 3.1.2.

[0024] The capacitance detection module 3.2 includes a second adjusting block 3.2.1 with adjustable embedment depth disposed on one side of the plug-in terminal 1 near the adapter base 2, a second mating groove 3.2.2 disposed on one side of the adapter base 2 corresponding to the second adjusting block 3.2.1, and a first capacitor coupling piece 3.2.3 and a second capacitor coupling piece 3.2.4 symmetrically distributed on the outer peripheral sidewall of the second mating groove 3.2.2. The surface of the second adjusting block 3.2.1 is covered with a dielectric layer. The real-time capacitance value of the capacitance detection module 3.2 is changed by changing the embedment depth of the second adjusting block 3.2.1 into the second mating groove 3.2.2.

[0025] The user aligns the adapter port 1.1 of the plug-in end 1 with the adapter terminal 2.2 of the adapter base 2, applies an axial force to insert, the elastic contact finger 2.2.1 is distributed along the outer peripheral wall of the adapter terminal 2.2, and the elastic deformation occurs during the insertion process, so as to ensure the close contact between the adapter terminal 2.2 and the inner wall of the adapter port 1.1, reduce the contact resistance, the first adjusting block 3.1.1 and the second adjusting block 3.2.1 are embedded in the corresponding first matching groove 3.1.2 and the second matching groove 3.2.2 synchronously with the insertion action, the embedding depth is determined by the plug type, the first adjusting block 3.1.1 made of magnetic conductive material is embedded in the first matching groove 3.1.2, changes the magnetic path length and the cross-sectional area of the inductance winding 3.1.3, the inductance winding 3.1.3 induces the change of magnetic flux, and outputs the inductance value proportional to the embedding depth, the second adjusting block 3.2.1 coated with a dielectric layer is embedded in the second matching groove 3.2.2, changes the dielectric constant between the first capacitor coupling piece 3.2.3 and the second capacitor coupling piece 3.2.4, and the capacitance value changes linearly with the embedding depth, the piezoresistor 2.2.2 is embedded in the root of the elastic contact finger 2.2.1, and the pressure signal generated by the deformation of the contact finger is detected in real time, the pressure data is transmitted to the processing module through the signal line, the magnetic conductive alloy separation layer 4 restrains the magnetic field of the inductance detection module 3.1 in a local area, prevents interference to the electric field of the capacitance detection module 3.2, ensures the signal independence and accuracy, the processing module synchronously receives the inductance value, the capacitance value and the contact pressure data, matches the real-time inductance value and the capacitance value with the preset value, and verifies the plug-in integrity in combination with the contact pressure, and triggers a signal prompt when the pressure is abnormal.

[0026] The utility model has been described exemplarily above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements are adopted by using the technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. A recognizable power connector, characterized in that, include: The connector has an adapter port on one side; An adapter base includes a base cavity and a transfer terminal disposed on one side of the base cavity, wherein the outer peripheral wall of the transfer terminal is elastically connected to the inner wall of the transfer port. The detection module is used to collect electrical characteristic signals generated during the plugging operation. The detection modules are distributed at the joint interface of the plug end and the adapter base. The detection modules are connected to the processing module located inside the base cavity to analyze the electrical characteristic signals and match them with preset values.

2. The identifiable power connector according to claim 1, characterized in that: The outer peripheral wall of the adapter terminal is provided with elastic contact fingers and varistors disposed at the base of the elastic contact fingers in the axial direction. The varistors are connected to the processing module through signal transmission.

3. The identifiable power connector according to claim 1, characterized in that: The detection module includes an inductance detection module and a capacitance detection module, and a magnetically conductive alloy spacer is provided between the capacitance detection module and the inductance detection module to avoid magnetic field interference with the power signal.

4. The identifiable power connector according to claim 3, characterized in that: The inductance detection module includes a first adjustment block with adjustable embedment depth disposed on one side of the plug end near the adapter base, a first mating groove disposed on one side of the adapter base corresponding to the first adjustment block, and an inductance winding distributed along the outer edge of the first mating groove. The first adjustment block is made of magnetic material. The real-time magnetic circuit parameters of the inductance detection module can be changed by changing the embedment depth of the first adjustment block into the first mating groove.

5. A recognizable power connector according to claim 3, characterized in that: The capacitance detection module includes a second adjusting block with adjustable embedment depth disposed on one side of the plug end near the adapter base, a second mating groove disposed on one side of the adapter base corresponding to the second adjusting block, and a first capacitor coupling piece and a second capacitor coupling piece symmetrically distributed on the outer peripheral sidewall of the second mating groove. The surface of the second adjusting block is covered with a dielectric layer. The real-time capacitance value of the capacitance detection module can be changed by changing the embedment depth of the second adjusting block into the second mating groove.

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