CN104348024B - High-tension connector - Google Patents

Abstract

The invention discloses a kind of high-tension connector, the high-tension connector includes high-voltage plug and high-tension terminal, the high-voltage plug and the high-tension terminal are respectively used to connect a cut cable, plugged by the high-voltage plug and the high-tension terminal to realize the electrical connection of two cables, buckle is provided with the high-voltage plug, holding section is correspondingly arranged on the high-tension terminal, the buckle and/or the holding section are provided with two, two buckles and/or two holding sections are set along the plug orientation of the high-voltage plug and the high-tension terminal, to fasten two positions during the high-voltage plug is mutually extracted with the high-tension terminal.The basic high-tension connector, during high-voltage plug is mutually extracted with high-tension terminal, buckle and holding section fasten in two positions, so as to improve the security of high-tension connector operation, prevent the generation of security incident.

Description

High voltage connector

technical field

The invention relates to a connector, in particular to a high-voltage connector for connecting high-voltage cables.

Background technique

The existing high-voltage connectors all include a high-voltage plug and a high-voltage socket, and the electrical connection between the two cables is realized by plugging and unplugging the high-voltage plug and the high-voltage socket. Due to the danger of high voltage of the power cable, in order to ensure safety, the plugging and unplugging of high voltage plugs and high voltage sockets needs to be carried out under the condition of power failure. That is, power down before plugging and unplugging. In order to prevent the high-voltage connector from being unplugged by mistake, after the high-voltage plug and the high-voltage socket are plugged in and the two power cables are electrically connected, the relative positions of the high-voltage plug and the high-voltage socket are locked by a locking device.

In actual operation, before the high-voltage plug and high-voltage socket are plugged in, the high-voltage plug and high-voltage socket have not yet worked, and both are in a power-off state, so the operation is safe; and before the high-voltage plug and high-voltage socket are unplugged, the high-voltage plug and high-voltage socket For the working state, when people unplug the two, they often forget to cut off the power first, which is prone to safety accidents. In another case, when the high-voltage plug and high-voltage socket are disconnected in the energized state when misoperation or the cable is accidentally pulled beyond the locking force of the high-voltage plug and high-voltage socket, it is very easy to cause electric shock and leakage. Danger.

Based on the unsafe factors of existing high-voltage connectors, a high-voltage connector with better safety performance is urgently needed.

Contents of the invention

The purpose of the present invention is to provide a high-voltage connector with good safety performance.

In order to realize the purpose, the present invention discloses a high-voltage connector. The high-voltage connector includes a high-voltage plug and a high-voltage socket, and the high-voltage plug and the high-voltage socket are respectively used to connect a cable end. It is plugged with the high-voltage socket to realize the electrical connection of the two cables. The high-voltage plug is provided with a buckle, and the high-voltage socket is correspondingly provided with a locking part. The buckle and/or the locking part There are two buckles and/or two engaging parts arranged along the insertion and extraction direction of the high-voltage plug and the high-voltage socket, so that when the high-voltage plug and the high-voltage socket are pulled out snaps together in two positions during the process.

The high-voltage plug is provided with a buckle, and the high-voltage socket is provided with a fastening part. At least one of the buckle and the fastening part is provided with two. When the high-voltage plug is pulled out of the high-voltage socket, the buckle and The engaging part engages in two positions, that is, the high-voltage plug and the high-voltage socket are engaged when they are fully inserted, the high-voltage plug is pulled out of the high-voltage socket for a certain distance, and the high-voltage plug and high-voltage socket are disconnected and then engaged again. Thereby improving the safety of the high-voltage connector operation. Furthermore, when the high-voltage plug and the high-voltage socket engage for the second time, the system detects that the high-voltage plug and the high-voltage socket are disconnected, and automatically stops supplying power to the two cables, further ensuring the safety of the high-voltage connector operation and preventing safety accidents happened.

Preferably, the two buckles and the two engaging parts are respectively arranged from bottom to top along the direction in which the high-voltage plug is pulled out of the high-voltage socket; since the two buckles and the two engaging parts are respectively arranged up and down, The two buckles and the two engaging parts are not at the same height, and the engaging relationship between the two buckles and the two engaging parts is uniquely corresponding, and the two engaging relationships do not interfere with each other. The automatic unlocking of the joint lock will further improve the safety of the high-voltage connector operation.

Specifically, the distance between the two buckles in the plugging direction of the high-voltage plug and the high-voltage socket is greater than the distance between the two engaging parts in the plugging direction of the high-voltage plug and the high-voltage socket; After releasing the engagement and locking of one buckle and one engaging part, after the high-voltage plug and the high-voltage socket are pulled out for a certain distance, the other buckle and another engaging part are engaged and locked again. At this time, the high-voltage plug and the high-voltage socket When the high-voltage socket is disconnected from the electrical connection, the system automatically stops supplying power to the two cables, thereby ensuring that the unplugged high-voltage plug and high-voltage socket are powered off.

Preferably, the high-voltage socket protrudes outward to form the engaging portion, the buckle is operatively connected to the outside of the high-voltage plug, and the buckle and the engaging portion are released by operating the buckle. Snap lock.

Specifically, the high-voltage plug further includes a locking slider, the locking slider is slidably connected to the high-voltage plug and pushes the buckle so that the buckle is always engaged with the locking portion. The movement trend of the buckle can prevent the buckle from failing due to vibration and other reasons.

Preferably, the high-voltage plug includes pins, a plug plastic inner shell, a plug plastic shell and a plug shielding layer, the pins are fixed to the plug plastic inner shell and electrically connected to the cable, and the plug plastic inner shell is located at In the plug plastic shell, the plug shielding layer is located between the plug plastic inner shell and the plug plastic shell and fully covers the plug plastic inner shell; the high-voltage socket includes a jack, a socket plastic inner shell , socket plastic shell and socket shielding layer, the jack is fixed to the jack plastic inner shell and electrically connected to the cable, the jack plastic inner shell is located in the jack plastic shell, the jack shielding layer It is located between the jack plastic inner shell and the jack plastic shell and completely covers the jack plastic inner shell.

Specifically, the high-voltage plug also includes a sealing ring and a shell cover, the sealing ring is sleeved on the plug shielding layer, and the shell cover is sleeved on one end of the plug shielding layer to prevent the sealing ring from detaching from the The shielding layer of the plug prevents the sealing ring from being taken out or falling off during the plugging and unplugging process of the high-voltage connector, ensuring waterproof performance

Specifically, the high-voltage plug and/or the high-voltage socket further includes a cable claw, the cable claw is fixed to one end of the high-voltage plug and/or the high-voltage socket, and the cable claw is used to fix the The cable; the cable claw is used to prevent the cable from shaking or rotating, and to prevent the cable sheath from receding and leakage.

Specifically, the pin and the plug plastic inner shell are detachably installed in the plug plastic shell, and the jack and the socket plastic inner shell are detachably installed in the jack plastic shell; Since the pin and the plug plastic inner shell, the jack and the jack plastic inner shell can be removed from the plug plastic shell and the jack plastic shell, they can be easily replaced, thereby realizing the functional interaction between the two-core connector and the three-core connector. Change.

Description of drawings

Figure 1 is a schematic structural diagram of a high-voltage plug.

Figure 2 is a cross-sectional view of the high-voltage plug.

Fig. 3 is an exploded schematic view of the high voltage plug.

Fig. 4 is a schematic structural diagram of a high-voltage socket.

Fig. 5 is a cross-sectional view of the high-voltage socket.

Fig. 6 is an exploded schematic view of the high voltage socket.

FIG. 7 is a schematic diagram of a state where a high-voltage plug and a high-voltage socket of the high-voltage connector of the present invention are mated.

FIG. 8 is an enlarged view of part A in FIG. 7 .

Fig. 9 is a schematic diagram of the state of the high-voltage plug and the high-voltage socket of the high-voltage connector of the present invention when they are unlocked once.

FIG. 10 is an enlarged view of part B in FIG. 9 .

detailed description

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

The high-voltage connector of the present invention is composed of a high-voltage plug 100 and a high-voltage socket 200 .

The high-voltage plug 100 shown in Figures 1-3 includes a plug plastic shell 110, a plug shielding layer 120, a plug plastic inner shell 130, a shell cover 140, a sealing ring 150, a pin 160, a buckle 170, and a plug inner shell pressure plate 180, locking slider 190 and cable claw 1A0. The plug plastic inner shell 130 is located in the plug plastic shell 110; the plug shielding layer 120 is closely arranged between the plug plastic inner shell 130 and the plug plastic shell 110, and the plug shielding layer 120 fully covers the plug plastic inner shell 130; the plug plastic inner shell There are two through holes on the shell 130, and the two pins 160 are plugged into the two through holes of the plastic inner shell 130 of the plug; The inner shell pressing plate 180 is pushed against the top, and the plug plastic inner shell 130 cooperates with the plug inner shell pressing plate 180 to fix the pin 160; the pin 160 is electrically connected with the cable. Further, one side of the plastic inner shell 130 of the plug has an insertion cavity 110a, and the other end of the pin 160 extends out of the through hole and goes deep into the insertion cavity 110a.

The sealing ring 150 is disposed in the plug plastic shell 110 , specifically, the sealing ring 150 is sleeved on the plug shielding layer 120 , and the shell cover 140 is plugged into one end of the plug shielding layer 120 . One end of the shell cover 140 abuts against the sealing ring 150 to fix the sealing ring 150, so that the sealing ring 150 will not be taken out or dropped when the high-voltage plug 100 is pulled out of the high-voltage socket 200, thereby ensuring waterproof performance.

The cable claw 1A0 is plugged into the other end of the plug plastic shell 110. When the cable is inserted into the plug plastic shell 110 and electrically connected to the pin 160, the cable claw 1A0 fixes the cable to prevent the cable from shaking or rotating, and prevents the cable The sheath is set back to prevent electric leakage and improve safety.

The buckle 170 includes a first buckle 170a and a second buckle 170b, the first buckle 170a and the second buckle 170b are respectively operatively connected to the plug plastic shell 110, the first buckle 170a and the second buckle 170b are along the The direction in which the high-voltage plug 100 is pulled out of the high-voltage socket 200 is arranged from bottom to top, that is, the connection line between the first buckle 170a and the second buckle 170b forms a certain angle with the direction in which the high-voltage plug 100 is pulled out of the high-voltage socket 200 .

The high-voltage socket 200 shown in FIGS. 4-6 includes a socket plastic shell 210 , a socket shielding layer 220 , a socket plastic inner shell 230 , a sealing ring 240 , a socket 250 and a socket inner shell pressure plate 260 . The socket plastic inner shell 230 is located in the socket plastic shell 210; the socket shielding layer 220 is arranged between the socket molding inner shell 230 and the socket plastic shell 210, and the socket shielding layer 220 fully covers the socket plastic inner shell 230; the socket plastic inner shell 230 There are two through holes on the top, and the two jacks 250 are plugged into the two through holes of the plastic inner shell 230 of the socket; top, the socket plastic inner shell 230 cooperates with the socket inner shell pressure plate 260 to fix the socket 250; the socket 250 is electrically connected with the cable. Further, a docking cavity 210 a is provided between one side end of the socket shielding layer 220 and one side end of the socket plastic shell 210 .

The socket plastic shell 210 is provided with an engaging portion 211, and the engaging portion 211 includes a first engaging portion 211a corresponding to the first engaging portion 170a and a second engaging portion 211b corresponding to the second engaging portion 170b. Same as the first buckle 170a and the second buckle 170b, the first engaging portion 211a and the second engaging portion 211b are arranged from bottom to top along the direction in which the high-voltage plug 100 is pulled out of the high-voltage socket 200, that is, the first engaging The connection line between the part 211a and the second engaging part 211b forms a certain angle with the direction in which the high voltage plug 100 is pulled out from the high voltage socket 200 . Further, the distance between the first buckle 170a and the second buckle 170b in the insertion and extraction direction of the high-voltage plug 100 and the high-voltage socket 200 is greater than that between the first engaging portion 211a and the second engaging portion 211b between the high-voltage plug 100 and the high-voltage socket. The distance in the plugging direction of 200. Accordingly, the engagement between the first buckle 170a and the first engaging portion 211a and the engagement between the second buckle 170b and the second engaging portion 211b are independent of each other, and do not engage simultaneously. When the high-voltage plug 100 and the high-voltage socket 200 are fully plugged in and the current between the two cables is turned on, the second buckle 170b and the second engaging part 211b constitute the first engagement lock; the first engagement lock is released, and the When the high-voltage plug 100 is pulled out from the high-voltage socket 200 for a certain distance, the first buckle 170a and the first engaging portion 211a form a second engagement lock.

In this embodiment, the first buckle 170a and the second buckle 170b are engaging fingers pivotally connected to the plug plastic shell 110, the first buckle 170a and the second buckle 170b protrude into the plug plastic shell 110, and one end The other ends of the first buckle 170 a and the second buckle 170 b protrude from the outside of the plug plastic shell 110 . Operate the protruding end of the first buckle 170a or the second buckle 170b located on the outside of the plug plastic shell 110 to drive the first buckle 170a or the second buckle 170b to pivot relative to the plug plastic shell 110 to release the engaging part 211 of the snap.

In this embodiment, the first engaging portion 211 a and the second engaging portion 211 b are two protrusions protruding outward from the socket plastic housing 210 , and are engaged with the buckle 170 through the sides of the protrusions.

The locking slider 190 is slidably connected to the plug plastic housing 110 , and the operating end of the locking slider 190 extends out of the plug plastic housing 110 . The locking slider 190 has two driving ends, and the two driving ends respectively push the first buckle 170a and the second buckle 170b, so that the first buckle 170a and the second buckle 170b always have the locking portion 211 Action trend, to prevent engagement failure due to vibration and other reasons.

The pins 160 and the plug plastic inner shell 130 are detachable from the plug plastic shell 110 . Similarly, the jack 250 and the socket plastic inner shell 230 and the socket plastic shell 210 are also detachable. Accordingly, the two-hole plug plastic inner shell 130 and two pins 160 can be disassembled and replaced with a three-hole plug plastic inner shell and three pins. Similarly, the two-hole socket plastic inner shell 230 and two pins can be replaced. The two jacks 250 are disassembled and replaced with a three-hole socket plastic inner shell and three pins, so that the three-core cable can be connected.

As shown in Figures 7-8, the high-voltage plug 100 and the high-voltage socket 200 are relatively plugged in, the socket shielding layer 220, the socket plastic inner shell 230 and the jack 250 enter the insertion cavity 110a, and the pin 160 is inserted into the jack 250 to realize Electrical connection of the two cables; at the same time, the plug shielding layer 120, the plug plastic inner shell 130, the sealing ring 150, and the shell cover 140 enter the docking cavity 210a together. At this time, the second engaging part 211b is engaged with the second buckle 170b, the first engaging part 211a is disengaged from the first buckle 170a, and the locking slider 190 pushes the first buckle 170a and the second buckle. The buckle 170b makes the first buckle 170a and the second buckle 170b both have an action tendency to engage with the engaging portion 211, so as to lock the engagement of the second engaging portion 211b and the second buckle 170b.

When unplugging the high-voltage plug 100 and the high-voltage socket 200, as shown in Figures 9-10, operate the locking slider 190 to release the push of the first buckle 170a and the second buckle 170b, and press the second buckle 170b Extend one end of the outer side of the plug plastic shell 110, so that the other end of the second buckle 170b is disengaged from the engagement with the second engaging part 211b; the high-voltage plug 110 is pulled out in the direction of disengaging from the high-voltage socket 200, and at the same time Release the operation on the locking slider 190, and the locking slider 190 pushes the first buckle 170a and the second buckle 170b again, so that both the first buckle 170a and the second buckle 170b have an engaging engaging portion 211 After the high-voltage plug 100 is pulled out from one end of the high-voltage socket 200, the first buckle 170a abuts against the first engaging portion 211a to realize the second engagement of the high-voltage plug 100 and the high-voltage socket 200. At this time, the pin 160 exits the socket 250 as shown in FIG. 10 , the two cables are disconnected electrically, and the system detects that the line is broken, and automatically stops the power supply to the two cables. At this time, operate the locking slider 190 again to release the pushing of the first buckle 170a and the second buckle 170b, press the end of the first buckle 170a protruding from the outer side of the plug plastic shell 110, so that the first buckle 170a The other end disengages from the engagement with the first engaging portion 211; the high-voltage plug is pulled out of the high-voltage socket.

According to the high-voltage connector provided by the present invention, the high-voltage plug 100 is provided with a buckle 170, and the high-voltage socket 200 is provided with a buckle 211, and at least one of the buckle 170 and the buckle 211 is provided with two. Therefore, in During the process of pulling out the high-voltage plug 100 and the high-voltage socket 200, the buckle 170 and the engaging part 211 are engaged in two positions, that is, the high-voltage plug 100 and the high-voltage socket 200 are engaged when they are fully inserted, and the high-voltage plug 100 and the high-voltage socket 200 are pulled out for a certain distance, and the high-voltage plug 100 and the high-voltage socket 200 are disconnected and engaged again, thereby improving the safety of the high-voltage connector operation. Furthermore, when the high-voltage plug 100 and the high-voltage socket 200 engage for the second time, the system detects that the high-voltage plug 100 and the high-voltage socket 200 are disconnected, and automatically stops supplying power to the two cables, further ensuring the safety of the high-voltage connector operation , to prevent the occurrence of safety accidents.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (6)

1. A high-voltage connector, comprising a high-voltage plug and a high-voltage socket, the high-voltage plug and the high-voltage socket are respectively used to connect a cable end, and the high-voltage plug is plugged with the high-voltage socket to realize the connection between the two cables The electric connection is characterized in that: the high-voltage plug is provided with buckles, and the high-voltage socket is correspondingly provided with engaging parts, and the buckles and/or the engaging parts are provided with two, and the two engaging parts are provided. The buckle and/or the two engaging parts are arranged along the insertion and extraction direction of the high-voltage plug and the high-voltage socket, so that the high-voltage plug and the high-voltage socket are locked at two positions during the process of pulling out the high-voltage plug and the high-voltage socket. the two buckles and the two engaging parts are respectively arranged from bottom to top along the direction in which the high-voltage plug is pulled out of the high-voltage socket; the two buckles are arranged between the high-voltage plug and the high-voltage socket The distance in the plugging direction is greater than the distance between the two engaging parts in the plugging direction between the high-voltage plug and the high-voltage socket; the high-voltage socket protrudes outward to form the engaging part, and the buckle Operably connected to the outside of the high voltage plug. 2. The high-voltage connector according to claim 1, wherein the high-voltage plug further includes a locking slider, the locking slider is slidably connected to the high-voltage plug and pushes the buckle, so that The buckle always has an action tendency to engage with the engaging portion. 3. The high-voltage connector according to claim 1, wherein the high-voltage plug includes pins, a plug plastic inner shell, a plug plastic shell, and a plug shielding layer, and the pins are fixed to the plug plastic inner shell And electrically connected with the cable, the plug plastic inner shell is located in the plug plastic shell, the plug shielding layer is located between the plug plastic inner shell and the plug plastic shell and fully covers the plug plastic inner shell The high-voltage socket includes a jack, a socket plastic inner shell, a socket plastic shell and a socket shielding layer, the jack is fixed to the jack plastic inner shell and is electrically connected to the cable, and the jack plastic inner shell is located at the In the jack plastic shell, the jack shielding layer is located between the jack plastic inner shell and the jack plastic shell and completely covers the jack plastic inner shell. 4. The high-voltage connector according to claim 3, wherein the high-voltage plug further includes a sealing ring and a cover, the sealing ring is sleeved on the shielding layer of the plug, and the cover is sleeved on the One end of the shielding layer of the plug to prevent the sealing ring from detaching from the shielding layer of the plug. 5. The high-voltage connector according to claim 3, characterized in that: the high-voltage plug and/or the high-voltage socket further includes a cable claw, and the cable claw is fixed to the high-voltage plug and/or the high-voltage socket One end of the high-voltage socket, the cable claw is used to fix the cable. 6. The high-voltage connector according to claim 3, characterized in that: the pin and the plastic inner shell of the plug are detachably installed in the plastic shell of the plug, and the socket and the plastic inner shell of the socket The shell group is detachably installed in the jack plastic shell.