Electric connector with measurable plugging distance and plugging distance testing method
阅读说明：本技术 一种插合距离可测的电连接器及插合距离测试方法 (Electric connector with measurable plugging distance and plugging distance testing method ) 是由 张小虎 陈宏光 张磊 张东波 尤宗毅 于 2019-10-30 设计创作，主要内容包括：一种插合距离可测的电连接器,包括连接插头和连接插座,在连接插头和连接插座上还对应设置有一组或多组电阻位移传感器,电阻位移传感器包括插针端子和插孔端子,插针端子上的电阻插针为具有阻值的导电体,电连接器插合时,电阻插针的外壁与插孔电极端口的内壁滑动电性连接。本发明还公开了一种插合距离的测试方法,用于测试并判断电连接器的插合距离是否在设定的区域。本发明通过电阻位移传感器以及设备端的检测电路,测试并判断电连接器的插合距离是否在设定的区域,从而消除电连接器插合不到位、或者插合歪斜造成的设备无法工作、损坏电连接器、以及可能出现的质量隐患,同时也便于在设备检修时,对电连接器连接可靠性的辨别。(The utility model provides a plug and close measurable electric connector of distance, includes connecting plug and connecting socket, still corresponds on connecting plug and connecting socket and is provided with a set of or multiunit resistance displacement sensor, and resistance displacement sensor includes contact pin terminal and jack terminal, and the resistance contact pin on the contact pin terminal is the electric conductor that has the resistance, and when electric connector inserted, the outer wall of resistance contact pin and the inner wall sliding electric connection of jack electrode port. The invention also discloses a method for testing the plugging distance, which is used for testing and judging whether the plugging distance of the electric connector is in a set area. The invention tests and judges whether the plugging distance of the electric connector is in a set area or not through the resistance displacement sensor and the detection circuit of the equipment end, thereby eliminating the problems that the electric connector is not plugged in place or the equipment cannot work and the electric connector is damaged and the potential quality hazard possibly occurs due to plugging deflection, and simultaneously being convenient for distinguishing the connection reliability of the electric connector during equipment maintenance.)
1. The utility model provides a measurable electric connector of range of plugging in, includes connecting plug (1) and connecting socket (2), characterized by: one or more groups of resistance displacement sensors (3) are correspondingly arranged on the connecting plug (1) and the connecting socket (2);
the resistance displacement sensor (3) comprises a pin terminal (3.1) and a jack terminal (3.2);
the pin terminal (3.1) mainly comprises a resistance pin (3.11) and a pin lead (3.12), wherein the resistance pin (3.11) is a conductor with resistance;
the jack terminal (3.2) mainly comprises a jack electrode (3.21) and a jack lead (3.22), wherein the inner diameter of the port of the jack electrode (3.21) is smaller than that of the rest part of the jack electrode (3.22);
when the connecting plug (1) is inserted into the connecting socket (2), the pin terminal (3.1) and the jack terminal (3.2) are correspondingly inserted, and the outer wall of the resistance pin (3.11) is electrically connected with the inner wall of the port of the jack electrode (3.21) in a sliding manner.
2. An electrical connector as claimed in claim 1, wherein: the pin terminal (3.1) is arranged on the connecting plug (1), and the connecting plug (1) is provided with an insulating mounting hole for mounting the pin terminal (3.1); the jack terminal (3.2) is arranged on the connecting socket (2), and the connecting socket (2) is provided with an insulating mounting hole for mounting the jack terminal (3.2); the pin terminal (3.1) and the jack terminal (3.2) are provided with mounting steps corresponding to the respective insulating mounting holes.
3. An electrical connector as claimed in claim 1, wherein: the pin terminal (3.1) is arranged on the connecting socket (2), and the connecting socket (2) is provided with an insulating mounting hole for mounting the pin terminal (3.1); the jack terminal (3.2) is arranged on the connecting plug (1), and the connecting plug (1) is provided with an insulating mounting hole for mounting the jack terminal (3.2); the pin terminal (3.1) and the jack terminal (3.2) are provided with mounting steps corresponding to the respective insulating mounting holes.
4. An electrical connector as claimed in claim 2 or 3, wherein: two groups of resistance displacement sensors (3) are correspondingly arranged on the connecting plug (1) and the connecting socket (2), and the two groups of resistance displacement sensors (3) are respectively arranged on two sides of the inserting end of the connecting plug (1) and the connecting socket (2).
5. An electrical connector as claimed in claim 4, wherein: the port of the jack electrode (3.21) is provided with a slotted closing-in, and the inner diameter of the slotted closing-in is smaller than that of the rest part of the jack electrode (3.22).
6. An electrical connector as claimed in claim 5, wherein: the resistance pins (3.11) are made of conductive materials with uniform resistance values.
7. A method for testing the insertion distance of an electrical connector using the electrical connector of claim 6, comprising: the method comprises the following steps:
s1: after the connecting plug (1) is plugged with the connecting socket (2), the same voltage U is applied to the two groups of resistance displacement sensors (3), so that the two groups of resistance displacement sensors (3) respectively generate current;
s2: the current on the two groups of resistance displacement sensors (3) is respectively detected through a detection circuit at the equipment end, and current values I1 and I2 are obtained;
s3: according to the calculation formula of the resistance: r ═ U/I to give R1, R2;
and then according to a calculation formula of the length of the resistance material: obtaining displacement amounts L1 and L2 of the pin terminal (3.1) in the jack terminal (3.2);
in the formula: the cross-sectional area of the pin terminal (3.1) is S;
the resistivity of the pin terminal (3.1) is rho;
s4: the detection circuit at the equipment end compares the displacement amounts L1 and L2 with the insertion setting region, Y1 and Y2 are two end points of the insertion setting region respectively, if the following conditions are met simultaneously:
Y1≤L1≤Y2，Y1≤L2≤Y2；
the detection circuit of the equipment end judges that the plugging distance between the connecting plug (1) and the connecting socket (2) meets the requirement, otherwise, the plugging distance does not meet the requirement.
Technical Field
The invention relates to the technical field of electric connectors, in particular to an electric connector with a measurable plugging distance and a testing method of the plugging distance.
Background
The electric connector is used as an electromechanical element which can realize signal disconnection and connection, if the signal is not connected in place, the equipment cannot work normally; if the insertion force between the plug and the socket is too large, the service life of the electrical connector is reduced, and even the electrical connector is damaged. The electric connector used as the interface of the equipment often has the characteristics of large volume, multiple types of transmission signals, multiple cores and blind plugging, and the electric connector often has the following problems in the use process:
1. due to design and manufacturing errors of the chassis, the electric connector cannot be inserted in place or the insertion force is overlarge;
2. the locking force of the electric connector is large, so that the electric connector cannot be inserted in place, such as a threaded or buckled round electric connector with a large shell number;
3. the tail of the electric connector drags a very thick cable to cause the insertion and the deflection of the electric connector;
4. the phenomenon of oblique insertion is easy to occur in the blind insertion process of the integrated electric connector serving as an interconnection interface between equipment.
The phenomenon often leads to the equipment to be incapable of working or has hidden quality troubles, and the difficulty of identifying problems when the equipment is overhauled is increased. Therefore, it is necessary to detect the insertion state of the electrical connector to ensure that the electrical connector can be correctly inserted. The conventional electric connector does not have the function of detecting the plugging distance between the plug and the socket, so that a plug and socket plugging distance detection structure needs to be designed in the electric connector to have the function of detecting the plugging distance between the plug and the socket.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses an electric connector with a measurable plugging distance, which aims to: and detecting the plugging distance of the electric connector.
The invention also discloses a method for testing the plugging distance of the electric connector, which aims to: and testing and judging whether the plugging distance of the electric connector is in a set area or not to ensure that the electric connector can be plugged correctly.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric connector with a measurable plugging distance comprises a connecting plug and a connecting socket, wherein one group or a plurality of groups of resistance displacement sensors are correspondingly arranged on the connecting plug and the connecting socket;
the resistance displacement sensor comprises a pin terminal and a jack terminal;
the pin terminal mainly comprises a resistance pin and a pin lead, wherein the resistance pin is a conductor with resistance;
the jack terminal mainly comprises a jack electrode and a jack lead, wherein the inner diameter of a jack electrode port is smaller than that of the rest part of the jack electrode;
when the connecting plug is inserted into the connecting socket, the pin terminal and the jack terminal are correspondingly inserted, and the outer wall of the resistance pin is electrically connected with the inner wall of the jack electrode port in a sliding mode.
In order to further improve the technical scheme, the pin terminal is arranged on a connecting plug, and the connecting plug is provided with an insulating mounting hole for mounting the pin terminal; the jack terminal is arranged on the connecting socket, and the connecting socket is provided with an insulating mounting hole for mounting the jack terminal; the pin terminals and the jack terminals are provided with mounting steps corresponding to the respective insulating mounting holes.
In order to further improve the technical scheme, the pin terminal is arranged on a connecting socket, and the connecting socket is provided with an insulating mounting hole for mounting the pin terminal; the jack terminal is arranged on the connecting plug, and the connecting plug is provided with an insulating mounting hole for mounting the jack terminal; the pin terminals and the jack terminals are provided with mounting steps corresponding to the respective insulating mounting holes.
In order to further improve the technical scheme, two groups of resistance displacement sensors are correspondingly arranged on the connecting plug and the connecting socket, and the two groups of resistance displacement sensors are respectively arranged on two sides of the insertion end of the connecting plug and the insertion end of the connecting socket.
In order to further improve the technical scheme, the port of the jack electrode is provided with a slotted closing-in, and the inner diameter of the slotted closing-in is smaller than that of the rest part of the jack electrode.
In order to further improve the technical scheme, the resistance contact pin is made of a conductive material with uniform resistance.
A method for testing the plugging distance of an electric connector comprises the following steps:
s1: after the connecting plug is plugged with the connecting socket, the same voltage U is applied to the two groups of resistance displacement sensors, so that the two groups of resistance displacement sensors respectively generate current;
s2: respectively detecting currents on the two groups of resistance displacement sensors through a detection circuit at the equipment end, and obtaining current values I1 and I2;
s3: according to the calculation formula of the resistance: r ═ U/I to give R1, R2;
and then according to a calculation formula of the length of the resistance material: obtaining displacement amounts L1 and L2 of the pin terminal in the jack terminal, wherein L is RS/rho;
in the formula: the cross-sectional area of the pin terminal is S;
the resistivity of the pin terminal is rho;
s4: the detection circuit at the equipment end compares the displacement amounts L1 and L2 with the insertion setting region, Y1 and Y2 are two end points of the insertion setting region respectively, if the following conditions are met simultaneously:
Y1≤L1≤Y2，Y1≤L2≤Y2；
and judging that the plugging distance between the connecting plug and the connecting socket meets the requirement by a detection circuit at the equipment end, otherwise, judging that the plugging distance does not meet the requirement.
Due to the adoption of the technical scheme, compared with the background technology, the invention has the following beneficial effects:
according to the electric connector with the measurable plugging distance, one or more groups of resistance displacement sensors are correspondingly arranged on the connecting plug and the connecting socket, so that the plugging distance between the connecting plug and the connecting socket is detected.
The method for testing the plugging distance of the electric connector can test and judge whether the plugging distance of the electric connector is in a set area or not, and can ensure that the electric connector can be plugged correctly.
In the aviation field, the connection reliability of the electric connector is particularly important for the safety of an aircraft, and the electric connector with the measurable plugging distance and the testing method of the plugging distance applied to the electric connector can test and judge whether the plugging distance of the electric connector is in a set region through a resistance displacement sensor and a detection circuit at an equipment end, so that the problems that the electric connector cannot be plugged in place or the equipment cannot work, the electric connector is damaged and potential quality hazards possibly occur due to plugging deflection are eliminated.
The invention can test and judge whether the plugging distance of the electric connector is in a set area, and can judge whether the plugging is not in place or is over or is caused by the fact that the plugging is not in place or is inclined. The judgment is very important for distinguishing the connection reliability of the electric connector, and particularly, the influence of the connection quality of the electric connector on equipment can be quickly eliminated during equipment maintenance.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the pin terminal.
Fig. 3 is a schematic structural view of a receptacle terminal.
Fig. 4 is a schematic structural view of the pin terminal and the socket terminal when they are inserted.
In the figure: 1. a connecting plug; 2. a connection socket; 3. a resistance displacement sensor; 3.1, inserting pin terminals; 3.11, resistance pins; 3.12, inserting a pin and a lead; 3.2, jack terminals; 3.21, a jack electrode; 3.22, jack lead; 4. a plug insulator; 5. a socket insulator; 6. a plug housing; 7. a socket housing.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
An electric connector with a measurable plugging distance is used for detecting the plugging distance of the electric connector.
As shown in fig. 1, the electrical connector includes a
The
As shown in fig. 2, the pin terminal 3.1 mainly comprises a resistive pin 3.11 and a pin conductor 3.12, wherein the resistive pin 3.11 is a conductive body with a resistance. The resistance contact pin is made of resistance materials with uniform resistance and small resistance temperature drift.
As shown in fig. 3, the jack terminal 3.2 mainly comprises a jack electrode 3.21 and a jack lead 3.22, wherein the port of the jack electrode 3.21 is provided with a slotted neck, and the inner diameter of the slotted neck is smaller than that of the rest of the jack electrode 3.22.
The pin terminal 3.1 and the jack terminal 3.2 do not have the matching direction, and the pin terminal 3.1 can be arranged on the connecting
As shown in fig. 4, when the
The outer wall of the resistance pin 3.11 is electrically connected with the inner wall of the jack electrode 3.21 with a groove and a closing up in a sliding way, so that the
As can be seen from the resistance formula R ═ ρ L/S, when the cross-sectional area of the pin terminal 3.1 is unchanged and the temperature change is not large, the resistance value R and the conductive length L of the pin terminal 3.1 are linearly related. As the displacement of the pin terminal 3.1 in the socket terminal 3.2 increases gradually, the conductive length L of the pin terminal 3.1 decreases gradually, and the resistance of the
Based on the electric connector with the measurable plugging distance, the invention also discloses a method for testing the plugging distance of the electric connector, which is used for testing and judging whether the plugging distance of the electric connector is in a set area or not so as to ensure that the electric connector can be plugged correctly.
The following two embodiments are provided to describe the method for testing the insertion distance of the electrical connector in detail.
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