CN203250937U - Electric connector - Google Patents

Abstract

The utility model provides an electric connector capable of automatically sensing connecting and disconnecting operations of the electric connector, and power connection and disconnection are controlled in the electric connector connecting and disconnecting processes so as to stop arc generation. According to the electric connector of the utility model, the technical scheme is that the electric connector comprises a plug-in unit and a reception unit; the electric connector also comprises a sensing device and a switch; the switch is connected in series with the electric connector; the sensing device is used for detecting a first state in which the plug-in unit and the reception unit start to disengage and electric connection between the plug-in unit and the reception unit is not disconnected; if the sensing device determines that the plug-in unit and the reception unit are positioned in the first state, the sensing device can send disengaging signal to the switch; and the switch is disconnected. The electric connector employs an AC electric connector in a DC circuit; when the plug-in unit disengages from the reception unit in the DC circuit, arc cannot be generated when electric connection is disconnected, thereby preventing generation of safety accident.

Description

A kind of electric connector

Technical field

The utility model relates to the break-make road control method of a kind of electric connector and circuit, relates to especially the break-make road control method of the circuit of insert and receiving element and insert and receiving element.

Background technology

Most servers and router use alternating current (AC) electric connector as electricity port, and electric connector comprises insert and receiving element.During the installation and maintenance of electric connector, insert inserts receiving element and disconnects from receiving element is recurrent.Because the AC electric current is by zero cross point, in most of the cases, insert inserts and disconnection can not produce harm (rated current of most inserts is less than 15A).But when server or the power supply of router usefulness direct current (DC) electric current, when the DC electric current had large load, insert inserted receiving element and may produce serious electric arc from the receiving element disconnection especially, and this can cause safety problem.

Existing solution is to use warning label to warn the user before the electric power insert is extracted, and closes first load, perhaps uses a kind of novel electric connector that can completely cut off electric arc that is used for the DC electric current.

In the process of using electric connector, if the user has ignored warning label, therefore warning label does not have the effect of caution can't avoid electric arc.

In addition, the electric connector that is used for the DC electric current is generally used, and at insert from the receiving element off period, still have electric arc, this can reduce the useful life of electric connector, the access times of common this electric connector are no more than 500 times.

Replace AC power supplies more and more at large in the situation at the DC power supply, usually use DC240V to replace AC220V or AC110V, especially in the IT machine room, this situation is more prevalent.Therefore, also increase the demand of under the DC condition, using the AC electric connector, because user and manufacturer can not change electric connector because of the type of supplying with electric current usually, but adhered to using same electric connector.

The utility model content

In view of above-mentioned deficiency of the prior art, for so that under the DC condition, use the AC electric connector when disconnecting, to guarantee safety, and so that electric connector is as general electric connector, the utility model is intended to provide a kind of electric connector, its automatically sensing electric connector operation of connecting and disconnecting, and electric connector connect with the disconnection process in control electric power connect and disconnect to avoid forming electric arc.

According to electric connector of the present utility model, its technical scheme is: a kind of electric connector, comprise insert and receiving element, wherein: described electric connector also comprises sensing device and switch, switch and electric connector are connected in series, described sensing device begin to break away from for detection of insert and receiving element and insert and receiving element between the first state of also not disconnecting of electrical connection, when sensing device detects insert and receiving element and is positioned at the first state, sensing device sends cut-off signal to switch, and switch disconnects.

Preferably, described sensing device also begins to contact for detection of insert and receiving element and insert and receiving element have been set up the second state of electrical connection, when sensing device detected insert and receiving element and is positioned at the second state, sensing device sent closure signal to switch, switch closure.

According to electric connector of the present utility model, be the improvement of carrying out on the basis of existing AC electric connector, it still can be widely used in AC power supplies.When being used for the DC power supply, because it has increased sensing device and switch, can connect afterwards Closing Switch at the electric connector that connects load, to connect load, before disconnecting, the electric connector that connects load opens switch, with disconnecting consumers, therefore, when engaging with receiving element and break away from from receiving element, insert can not produce electric arc, and can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.

Preferably, insert comprises body and stretches out the bar that electrically contacts of the first distance from body, insert is provided with the flange that stretches out second distance from body along the direction identical with electrically contacting bar, and this flange is around electrically contacting the bar setting, receiving element is provided with groove, flange is received in this groove and is insulated from each other, and second distance is greater than the first distance.

Can be so that sensing device detects the first state and the second state moves to connect or disconnect circuit accordingly with actuatable switches by the first distance and second distance are set.

Preferably, sensing device is the mechanical actuation device that is arranged on the bottom of groove, and described mechanical actuation device comprises actuation member, and the actuation member actuatable switches is so that switch closure or open.

Preferably, when inserting insert to receiving element, the flange end of insert touches actuation member, actuation member is actuated described switch, switch closure, arrange second distance greater than the value of the first distance so that when flange end touches actuation member, receiving element and insert have been set up electrical connection.

Preferably, when insert breaks away from from receiving element, when the flange end of insert is separated with actuation member, actuation member is actuated described switch, switch disconnects, second distance is set greater than the value of the first distance so that when flange end is separated with actuation member, the electrical connection of receiving element and insert does not also disconnect.

Preferably, described actuation member comprises spring and ball or spring and wedge.

By using mechanical sensing device, kinetogenesis by ball or wedge and spring and switch be implemented in electrical connection between the electric connector set up after Closing Switch and before the electrical connection between the electric connector disconnects, open switch, so that when insert engages with receiving element and breaks away from from receiving element, can not produce electric arc, can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.And mechanical sensing device is simple in structure, low cost of manufacture, and reliability is high.

Preferably, sensing device is the optical coupler that is arranged on the receiving element inboard, and optical coupler comprises reflector and receiver, and receiver and reflector communicate with one another with the signal that sends closure to switch or open so that switch closure or open.

Preferably, reflector and receiver lay respectively at the inboard both sides of receiving element, when inserting insert to receiving element, when the flange end of insert has just been blocked between reflector and receiver, optical coupler sends activation signal and actuates described switch closure, second distance is set greater than the value of the first distance so that when the flange end of insert had just been blocked between reflector and receiver, receiving element and insert had been set up electrical connection.

Preferably, when insert breaks away from from receiving element, when the flange end of insert has been left the groove bottom just so that reflector and receiver when visible each other, optical coupler sends activation signal and actuates described switch disconnection, second distance is set greater than the value of the first distance so that left the groove bottom just so that reflector and receiver when visible each other when the flange end of insert, the electrical connection of receiving element and insert does not also disconnect.

Preferably, reflector and receiver are positioned at the same side of receiving element inboard, when inserting insert to receiving element, when the flange end of insert has just been blocked in described reflector the place ahead, receiver is received the light signal by the insert reflection, it is closed that optical coupler sends the activation signal actuatable switches, second distance is set greater than the value of the first distance so that when the flange end of insert had just been blocked in described reflector the place ahead, receiving element and insert had been set up electrical connection.

Preferably, when insert breaks away from from receiving element, when the flange end of insert has been left the groove bottom just so that receiver when not receiving the light signal of reflector by the insert emission, optical coupler sends the activation signal actuatable switches and disconnects, second distance is set greater than the value of the first distance and leaves the groove bottom so that work as the flange end of insert, receiver rigidly connects when can not receive the light signal of reflector by insert reflection, and the electrical connection of receiving element and insert does not also disconnect.

By using the sensing device of optical coupler, reflector by optical coupler and the closure of receiver actuatable switches and open, be implemented in electrical connection between the electric connector set up after Closing Switch and before the electrical connection between the electric connector disconnects, open switch, so that when insert engages with receiving element and breaks away from from receiving element, can not produce electric arc, can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.And the sensing device of optical coupler is simple in structure, and is highly sensitive, and reliability is high.

Not only sensing device can be arranged on the receiving element, sensing device can also be arranged on the insert, its technical scheme is as follows.

Preferably, one of them is provided with when insert and receiving element engage another flange that stretches out in insert and the receiving element insert and receiving element, in insert and the receiving element another is provided with groove, flange is received in the groove and is insulated from each other, flange is actuated sensing device, when inserting insert to receiving element, begin to be engaged to flange from insert and receiving element and begin to actuate sensing device, the fore-and-aft distance that insert is advanced is the 3rd distance, begin to be engaged to insert and receiving element begins to set up electrical connection from insert and described receiving element, the fore-and-aft distance that insert is advanced is the 4th distance, and the 3rd distance is greater than the 4th distance.

Thus, guaranteed when inserting insert to receiving element, when flange is actuated sensing device, to have set up electrical connection between insert and the receiving element.

Preferably, when insert breaks away from from receiving element, begin to be separated to flange from described insert and receiving element and begin to actuate sensing device, the fore-and-aft distance that insert is advanced is the 5th distance, begin to be separated to insert and receiving element disconnection electrical connection from insert and receiving element, the fore-and-aft distance that insert is advanced is the 6th distance, and the 6th distance is greater than the 5th distance.

Thus, guaranteed that when flange was actuated sensing device, the electrical connection between insert and the receiving element did not also disconnect when insert and receiving element disconnection.

Preferably, when insert and receiving element joint, sensing device is actuated described switch closure, and when insert and receiving element disconnection, the sensing device actuatable switches disconnects.

Preferably, sensing device is mechanical actuation device or optical coupler.

According to electric connector of the present utility model, it can be implemented in after the circuit connection of electric connector place, closed switch of connecting with electric connector, before electric connector disconnects the place circuit, disconnect the switch of connecting with electric connector, open circuit reduces or has eliminated when electric connector switches on and off the electric arc that produces.The utility model also provides a kind of break-make road control method of circuit, uses the method can realize the operation that automatic sensing electric connector connects and disconnects, and electric connector connect with the disconnection process in control electric power connect and disconnect to avoid forming electric arc.

Break-make road control method according to circuit of the present utility model, its technical scheme is: a kind of break-make road control method of circuit, the break-make road control method of this circuit is used for comprising the electric connector of insert and receiving element, wherein, when electric connector is being electrically connected under the channel status, use sensing device to detect that insert and receiving element begin to break away from and insert and receiving element between the first state of also not disconnecting of electrical connection, when sensing device detects insert and receiving element and is positioned at the first state, sensing device sends cut-off signal to the switch of connecting with electric connector, and switch disconnects.

Break-make road control method according to circuit of the present utility model, by using sensing device to detect the first state, send cut-off signal to the switch of connecting with electric connector, cut-off switch, realized before the electrical connection between the electric connector disconnects, switch disconnects, so that the electrical connection of whole circuit disconnects.Therefore, when breaking away from from receiving element, insert can not produce electric arc, and can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.

Preferably, when electric connector is being electrically connected under the off state, use sensing device to detect that insert begins to contact with receiving element and insert and receiving element have been set up the second state of electrical connection, when sensing device detects insert and receiving element and is positioned at the second state, sensing device sends closure signal to the switch of connecting with electric connector, switch closure.

Break-make road control method according to circuit of the present utility model, by using sensing device to detect the second state, send closure signal to the switch of connecting with electric connector, Closing Switch, realized after the electrical connection connection between electric connector, switch closure, therefore, when setting up electrical connection, insert and receiving element can not produce electric arc, and can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.

Electric connector in this method is above-mentioned electric connector.

The electric connector that provides according to the utility model and the break-make road control method of circuit, realized in the DC circuit, using the AC electric connector, and guaranteed in the DC circuit, when disconnecting insert from receiving element, when electrical connection is cut off, can not produce electric arc, prevented the generation of security incident, improved the useful life of AC electric connector, and this improvement can realize at traditional AC electric connector, can generally use in electric connector field.

Description of drawings

Other advantage of the present utility model and feature will only become more obviously clear with the explanation that provide and expression specific embodiment of the present utility model in the accompanying drawings of the purpose of non-limiting example from ensuing, in the accompanying drawings:

Fig. 1 is the circuit structure diagram according to electric connector of the present utility model;

Fig. 2 is the cross-sectional view according to wherein a kind of embodiment of electric connector of the present utility model;

Fig. 3 is the cross-sectional view of electric connector under closure state according to the embodiment of Fig. 2;

Fig. 4 is the cross-sectional view according to the another kind of embodiment of electric connector of the present utility model;

Fig. 5 is according to the insert of the electric connector of the embodiment of Fig. 4 and the inboard laterally schematic diagram of receiving element;

Fig. 6 is the cross-sectional view according to another embodiment of electric connector of the present utility model;

Fig. 7 is according to the insert of the electric connector of the embodiment of Fig. 6 and the inboard laterally schematic diagram of receiving element.

Description of reference numerals

1 insert

2 receiving elements

3 sensing devices

4 switches

The binding post of 5 receiving elements

6 electrically contact bar

7 flanges

8 grooves

9 mechanical actuation devices

10 reflectors

11 receivers

12 bodies

13 flange end

Embodiment

The below explains electric connector of the present utility model with reference to Fig. 1 to Fig. 7.

Fig. 1 shows the circuit structure diagram according to electric connector of the present utility model.

Electric connector comprisesinsert 1 and receivingelement 2,sensing device 3 andswitch 4, andswitch 4 is connected in series with electric connector, is opened according to testingresult actuatable switches 4 or closure by sensing device 3.The first state that describedsensing device 3 begins to break away from for detection ofinsert 1 and receivingelement 2 and the electrical connection of 2 ofinsert 1 and receiving elements does not also disconnect, andinsert 1 begins to contact with receivingelement 2 andinsert 1 and receivingelement 2 have been set up the second state of electrical connection.When sensingdevice 3 detectedinsert 1 and receivingelement 2 and is positioned at the first state,sensing device 3 sent cut-off signal to switch 4, andswitch 4 disconnects; When sensingdevice 3 detectedinsert 1 and receivingelement 2 and is positioned at the second state,sensing device 3 sent closure signal to switch 4, switch closure.

It is pointed out that switch is sensu lato switch referred in this, comprise mechanical switch and electronic switch.The electrical connection of the insert of indication and receiving element refers to that for example the electric contact piece of insert and receiving element contacts in this article, if can carry out the connection of electric current conduction in the situation that the circuit at electric connector place is connected.

According to electric connector of the present utility model, the improvement that can carry out on the basis of existing AC electric connector, existing AC electric connector, for example: the receiving element of electric connector is IEC60320C13, insert is C14, and it still can be widely used in AC power supplies.When being used for the DC power supply, because it has increased sensing device and switch, can connect afterwards Closing Switch at the electric connector that connects load, to connect load, before disconnecting, the electric connector that connects load opens switch, with disconnecting consumers, therefore, when breaking away from from receiving element, insert can not produce electric arc, and can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.

Fig. 2 and Fig. 4 show respectively the cross-sectional view according to two kinds of embodiment of electric connector of the present utility model, and the difference of these two kinds of embodiment is that employed sensing device is different, and all the other structures are identical.

Insert 1 comprisesbody 12, electrically contacts bar 6 andflange 7, electrically contacts bar 6 and stretches out the first distance frombody 12, andflange 7 stretches out second distance along the direction identical with electrically contactingbar 6 frombody 12, andflange 7 arranges around electrically contacting bar 6.Receivingelement 2 is provided withgroove 8, andflange 7 is received in thegroove 8 and is insulated from each other, and second distance is greater than the first distance, and specific design can be with reference to existing AC electric connector, IEC320C14.

The first distance and second distance are set can be so that sensing device detects the first state and the second state is opened with actuatable switches or closed to connect or disconnect circuit.

As shown in Figure 2, sensing device is themechanical actuation device 9 that is arranged on the bottom outside of groove, and the mechanical actuation device comprises actuation member, and the actuation member actuatable switches is so that switch closure or open.Although sensing device is arranged on the bottom outside of groove among this embodiment, sensing device also can be arranged on the bottom inside of groove, as long as it can realize identical function.

When insertinginsert 1 to receivingelement 2, theflange end 13 ofinsert 1 touches actuation member, actuation member is actuated described switch (not shown in Fig. 2), switch closure, arrange second distance greater than the value of the first distance so that whenflange end 13 touches actuation member, receivingelement 1 andinsert 2 have been set up electrical connection.

In whole embodiment of the present utility model, second distance is greater than the first distance, the difference of second distance and the first distance is set as required, realizing when insert and receiving element break away from or insert, flange end inspire sensing device occur in electrical connection between insert and the receiving element disconnect before or be electrically connected after the foundation.

Wheninsert 1 breaks away from from receivingelement 2, when theflange end 13 ofinsert 1 is separated with actuation member, actuation member is actuated described switch, switch disconnects, second distance is set greater than the value of the first distance so that whenflange end 13 was separated with actuation member, the electrical connection of receiving element and insert did not also disconnect.

Described actuation member comprises spring and ball, and spring is connected between ball and the switch, when flange end touches ball, and the motion compresses spring of ball, spring actuated switch closure.At this " spring actuated switch ", can be that direct actuatable switches itself is carried out closure, for example, spring is pressed on the button of switch, also can be the compression movement generation signal of telecommunication by spring, and this signal of telecommunication actuatable switches is closed.The spring actuated switch of mentioning in the utility model can be any mode that can actuatable switches well known in the art.

Based on similar principle, described actuation member comprises spring and wedge, when flange end touches wedge, and the motion compresses spring of wedge, spring actuated switch closure.At this " spring actuated switch ", can be that direct actuatable switches itself is carried out closure, for example, spring is pressed on the button of switch, also can be the compression movement generation signal of telecommunication by spring, and this signal of telecommunication actuatable switches is closed.Adopting the reason of ball and wedge is when flange end touches ball and wedge, the volume less than half that ball is set is positioned at bottom portion of groove, when then flange end is inserted to bottom portion of groove, can promote ball or wedge outwards moves, with Compress Spring, thus spring actuated switch.

When extracting insert from receiving element, this principle is with identical to receiving element insertion insert, and process is opposite, because flange end is left bottom portion of groove, the spring that is compressed is returned to the undeformed state, this restoring force actuatable switches, thus switch disconnects.

Fig. 3 shows the cross-section structure of electric connector under closure state according to the embodiment of Fig. 2.When electric connector under closure state, the wedge ofmechanical actuation device 9 is withdrawn into the groove outside owing to be subject to the extruding of flange.Be understandable that when flange left bottom portion of groove, wedge reentered in the groove, as shown in Figure 2.

Actuation member in the utility model includes but not limited to spring and ball or spring and wedge, for example can also use magnet arrangement, and the magnetic force by magnet comes actuatable switches.

By using mechanical sensing device, by ball or wedge and spring to the kinetogenesis of switch be implemented in electrical connection between the electric connector set up after Closing Switch and before the electrical connection between the electric connector disconnects, open switch, so that when insert breaks away from from receiving element, can not produce electric arc, can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.And mechanical sensing device is simple in structure, low cost of manufacture, and reliability is high.

Extremely shown in Figure 7 such as Fig. 4, sensing device is the optical coupler that is arranged on the receiving element inboard, optical coupler comprisesreflector 10 andreceiver 11, andreceiver 11 andreflector 10 communicate with one another with the signal that sends closure to switch (not shown in Fig. 4) or open so that switch closure or open.

Fig. 4, Fig. 5 and Fig. 6, Fig. 7 show respectively reflector 10 andreceiver 11 is positioned at not homonymy of receiving element inboard, and the schematic diagram of the inboard the same side of receiving element.

Such as Fig. 4, shown in Figure 5,reflector 10 andreceiver 11 are positioned at the opposite side of receiving element inboard, when insertinginsert 1 to receivingelement 2, when theflange end 13 ofinsert 1 has just been blocked betweenreflector 10 andreceiver 11, optical coupler sends activation signal and actuates described switch closure, second distance is set greater than the value of the first distance so that when theflange end 13 of insert had just been blocked betweenreflector 10 andreceiver 11, receivingelement 1 andinsert 2 had been set up electrical connection.

Wheninsert 1 breaks away from from receivingelement 2, when theflange end 13 ofinsert 1 has been left the groove bottom just so thatreflector 10 andreceiver 11 when visible each other, optical coupler sends activation signal and actuates described switch disconnection, second distance is set greater than the value of the first distance so that left the groove bottom just so thatreflector 10 andreceiver 11 when visible each other when theflange end 13 of insert, the electrical connection of receivingelement 2 andinsert 1 does not also disconnect.

Fig. 4 and thereflector 10 shown in Fig. 5 andreceiver 11 are arranged on the relative both sides of receivingelement inboard.Reflector 10 andreceiver 11 can also be arranged on the adjacent both sides of receiving element inboard, as long as realize identical function.

Such as Fig. 6, shown in Figure 7,reflector 10 andreceiver 11 are positioned at the same side of described receivingelement 2 inboards, when insertinginsert 1 to receivingelement 2, when theflange end 13 ofinsert 1 has just been blocked inreflector 10 the place ahead,receiver 11 is received the light signal byinsert 1 reflection, optical coupler sends activation signal actuatable switches 4 closures, second distance is set greater than the value of the first distance so that when theflange end 13 ofinsert 1 had just been blocked inreflector 10 the place ahead, receivingelement 2 andinsert 1 had been set up electrical connection.

Wheninsert 1 breaks away from from receivingelement 2, when theflange end 13 ofinsert 1 has been left the groove bottom just so thatreceiver 11 when not receiving the light signal ofreflector 10 byinsert 1 emission, described optical coupler sends activation signal actuatable switches 4 and disconnects, second distance is set greater than the value of the first distance and leaves the groove bottom so that work as theflange end 13 ofinsert 1,receiver 11 rigidly connects when can not receive light signal byinsert 1 reflection ofreflector 10, and the electrical connection of receivingelement 2 andinsert 1 does not also disconnect.

The optical coupler actuatable switches of mentioning in the utility model can be any mode that can actuatable switches well known in the art, and for example optical coupler sends the signal of telecommunication, signal of telecommunication actuatable switches.

By using the sensing device of optical coupler, reflector by optical coupler and the closure of receiver actuatable switches and open, be implemented in electrical connection between the electric connector set up before Closing Switch and before the electrical connection between the electric connector disconnects, open switch, so that when insert breaks away from from receiving element, can not produce electric arc, can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.And the sensing device of optical coupler is simple in structure, and is highly sensitive, and reliability is high.

Fig. 1 to Fig. 7 only shows that sensing device is arranged on the situation on the receiving element, not only sensing device can be arranged on the receiving element in the practical application, sensing device can also be arranged on the insert.

Be provided with when insert and receiving element engage another flange that stretches out in insert and the receiving element in one of them of insert and receiving element, in insert and the receiving element another is provided with groove, flange is received in the groove and is insulated from each other, flange is actuated sensing device, when insert and receiving element joint, sensing device is actuated described switch closure, and when insert and receiving element disconnection, the sensing device actuatable switches disconnects.

When insert and receiving element joint, begin to be engaged to flange from insert and receiving element and begin to actuate sensing device, the fore-and-aft distance that insert is advanced is the 3rd distance, begin to be engaged to insert and receiving element begins to set up electrical connection from insert and described receiving element, the fore-and-aft distance that insert is advanced is the 4th distance, and the 3rd distance is greater than the 4th distance.

When insert and receiving element disconnection, begin to be separated to flange from described insert receiving element and begin to actuate sensing device, the fore-and-aft distance that insert is advanced is the 5th distance, begin to be separated to insert and receiving element disconnection electrical connection from insert and receiving element, the fore-and-aft distance that insert is advanced is the 6th distance, and the 6th distance is greater than the 5th distance.

Sensing device can be mechanical actuation device or optical coupler, and its principle and set-up mode and the above embodiments are similar, no longer are elaborated at this.

In this direction that vertically refers to insert and receiving element joint.

Thus, guaranteed when insert and receiving element joint, when flange is actuated sensing device, to have set up electrical connection between insert and the receiving element; When insert and receiving element disconnection, when flange was actuated sensing device, the electrical connection between insert and the receiving element did not also disconnect.

According to electric connector of the present utility model, it can be implemented in after the electric connector connection, closed switch of connecting with electric connector, before electric connector disconnects the place circuit, disconnect the switch of connecting with electric connector, open circuit reduces or has eliminated when electric connector switches on and off the electric arc that produces.

The utility model also provides a kind of break-make road control method that can be used for the circuit of above-mentioned electric connector, use the method can realize the operation that automatic sensing electric connector connects and disconnects, and electric connector connect with the disconnection process in control electric power connect and disconnect to avoid forming electric arc.

A kind of break-make road control method of circuit, the break-make road control method of this circuit is used for comprising the electric connector of insert and receiving element, wherein, when electric connector is being electrically connected under the channel status, use sensing device to detect that insert and receiving element begin to break away from and insert and receiving element between the first state of also not disconnecting of electrical connection, when sensing device detects insert and receiving element and is positioned at the first state, sensing device sends cut-off signal to the switch of connecting with electric connector, and switch disconnects; When electric connector is being electrically connected under the off state, use sensing device to detect that insert begins to contact with receiving element and insert and receiving element have been set up the second state of electrical connection, when sensing device detects insert and receiving element and is positioned at the second state, sensing device sends closure signal to the switch of connecting with electric connector, switch closure.

Break-make road control method according to this circuit, by using sensing device to detect the first state, send cut-off signal to the switch of connecting with electric connector, cut-off switch, realized before the electrical connection between the electric connector disconnects, switch disconnects, so that the electrical connection of whole circuit disconnects.By using sensing device to detect the second state, send closure signal to the switch of connecting with electric connector, Closing Switch, realized after the electrical connection connection between electric connector, switch closure, therefore, when disconnecting electrical connection or set up electrical connection, insert and receiving element can not produce electric arc, and can be with cause not dangerous of cause electric arc and to the damage of electric connector yet.

The electric connector that provides according to the utility model and the break-make road control method of circuit, realized in the DC circuit, using the AC electric connector, and guaranteed in the DC circuit, when disconnecting insert from receiving element, when electrical connection is cut off, can not produce electric arc, prevented the generation of security incident, improved the useful life of AC electric connector, and this improvement can realize at traditional AC electric connector, can generally use in electric connector field.

More than the utility model is described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; change in specific embodiments and applications should not thought the scope that has departed from the utility model protection; in sum, this description should not be construed as restriction of the present utility model.

Claims (16)

1. electric connector, comprise insert (1) and receiving element (2), it is characterized in that: described electric connector also comprises sensing device (3) and switch (4), described switch (4) is connected in series with described electric connector, described sensing device (3) begins the first state that the electrical connection between disengaging and described insert (1) and described receiving element (2) does not also disconnect for detection of described insert (1) and described receiving element (2), when described sensing device (3) detects described insert (1) and described receiving element (2) when being positioned at the first state, described sensing device (3) sends cut-off signal to described switch (4), and described switch (4) disconnects.

2. electric connector according to claim 1, it is characterized in that: described sensing device (3) also begins to contact for detection of described insert (1) and described receiving element (2) and described insert (1) and described receiving element (2) have been set up the second state of electrical connection, when described sensing device (3) detects described insert (1) and described receiving element (2) when being positioned at the second state, described sensing device (3) sends closure signal to described switch (4), described switch (4) closure.

3. electric connector according to claim 1 and 2, it is characterized in that: described insert (1) comprises body (12) and electrically contacts bar (6) from what described body (12) stretched out the first distance, described insert (1) is provided with from described body (12) along electrically contacting the flange (7) that the identical direction of bar (6) is stretched out second distance with described, and described flange (7) centers on described bar (6) setting that electrically contacts, described receiving element (2) is provided with groove (8), described flange (7) is received in the described groove (8) and is insulated from each other, and second distance is greater than the first distance.

4. electric connector according to claim 3, it is characterized in that: described sensing device (3) is the mechanical actuation device (9) that is arranged on the bottom of described groove (8), described mechanical actuation device (9) comprises that actuation member, actuation member are actuated described switch (4) so that described switch (4) is closed or open.

5. electric connector according to claim 4, it is characterized in that: when inserting described insert (1) to described receiving element (2), the flange end (13) of described insert (1) touches described actuation member (9), described actuation member (9) is actuated described switch (4), described switch (4) closure, second distance is set greater than the value of the first distance so that when described flange end (13) touches described actuation member (9), described receiving element (2) and described insert (1) have been set up electrical connection.

6. electric connector according to claim 5, it is characterized in that: when described insert (1) breaks away from from described receiving element (2), the flange end (13) of described insert (1) and described actuation member (9) are when separating, described actuation member (9) is actuated described switch (4), described switch (4) disconnects, second distance is set greater than the value of the first distance so that when described flange end (13) and described actuation member (9) when separating, the electrical connection of described receiving element (2) and described insert (1) does not also disconnect.

7. electric connector according to claim 6, it is characterized in that: described actuation member (9) comprises spring and ball or spring and wedge.

8. electric connector according to claim 3, it is characterized in that: described sensing device (3) is for being arranged on the inboard optical coupler of described receiving element (2), described optical coupler comprises reflector (10) and receiver (11), and described reflector (10) and described receiver (11) communicate with one another with the signal that sends closure to described switch (4) or open so that described switch (4) is closed or open.

9. electric connector according to claim 8, it is characterized in that: described reflector (10) and described receiver (11) lay respectively at the inboard both sides of described receiving element (2), when inserting described insert (1) to described receiving element (2), when the flange end (13) of described insert (1) has just been blocked between described reflector (10) and described receiver (11), described optical coupler sends activation signal and actuates described switch (4) closure, second distance is set greater than the value of the first distance so that when the flange end (13) of described insert (1) had just been blocked between described reflector (10) and described receiver (11), described receiving element (2) and described insert (1) had been set up electrical connection.

10. electric connector according to claim 9, it is characterized in that: when described insert (1) breaks away from from described receiving element (2), when the flange end (13) of described insert (1) has been left the groove bottom just so that described reflector (10) and described receiver (11) each other as seen the time, described optical coupler sends activation signal and actuates described switch (4) disconnection, second distance is set greater than the value of the first distance so that left the groove bottom just so that described reflector (10) and described receiver (11) when visible each other when the flange end (13) of described insert (1), the electrical connection of described receiving element (2) and described insert (1) is also less than disconnection.

11. electric connector according to claim 8, it is characterized in that: described reflector (10) and described receiver (11) are positioned at the inboard the same side of described receiving element (2), when inserting described insert (1) to described receiving element (2), when the flange end (13) of described insert (1) has just been blocked in described reflector (10) the place ahead, described receiver (11) is received the light signal by described insert (1) reflection, described optical coupler sends activation signal and actuates described switch (4) closure, second distance is set greater than the value of the first distance so that when the flange end (13) of described insert (1) had just been blocked in described reflector (10) the place ahead, described receiving element (2) and described insert (1) had been set up electrical connection.

12. electric connector according to claim 11, it is characterized in that: when described insert (1) breaks away from from described receiving element (2), when the flange end (13) of described insert (1) has been left the groove bottom just so that described receiver (11) when not receiving the light signal of described reflector (10) by described insert (1) emission, described optical coupler sends activation signal and actuates described switch (4) disconnection, second distance is set greater than the value of the first distance and leaves the groove bottom so that work as the flange end (13) of described insert (1), described receiver (11) rigidly connects when can not receive the light signal of described reflector (10) by described insert (1) reflection, and the electrical connection of described receiving element (2) and described insert (1) is not disconnection also.

13. electric connector according to claim 1 and 2, it is characterized in that: one of them is provided with when described insert (1) and described receiving element (2) engage another flange that stretches out in described insert (1) and the described receiving element (2) described insert (1) and described receiving element (2), in described insert (1) and the described receiving element (2) another is provided with groove, described flange is received in the described groove and is insulated from each other, described flange is actuated described sensing device, when inserting described insert (1) to described receiving element (2), begin to be engaged to described flange from described insert (1) and described receiving element (2) and begin to actuate described sensing device, the fore-and-aft distance that described insert is advanced is the 3rd distance, begin to be engaged to described insert (1) and described receiving element (2) foundation electrical connection from described insert (1) and described receiving element (2), the fore-and-aft distance that described insert is advanced is the 4th distance, and the 3rd distance is greater than the 4th distance.

14. electric connector according to claim 13, it is characterized in that: when described insert (1) breaks away from from described receiving element (2), begin to be separated to described flange from described insert (1) and described receiving element (2) and begin to actuate described sensing device, the fore-and-aft distance that described insert is advanced is the 5th distance, begin to be separated to described insert (1) and described receiving element (2) disconnection electrical connection from described insert (1) and described receiving element (2), the fore-and-aft distance that described insert is advanced is the 6th distance, and the 6th distance is greater than the 5th distance.

15. electric connector according to claim 14, it is characterized in that: when described insert (1) and described receiving element (2) joint, described sensing device is actuated described switch closure, when described insert (1) and described receiving element (2) disconnection, described sensing device is actuated described switch and is disconnected.

16. electric connector according to claim 15 is characterized in that: described sensing device is mechanical actuation device or optical coupler.

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