CN113451846A

CN113451846A - Safety power connector

Info

Publication number: CN113451846A
Application number: CN202110793926.0A
Authority: CN
Inventors: 山海建; 梁西彦; 余崇威
Original assignee: Cixi Wanneng Electronics Co ltd
Current assignee: Cixi Wanneng Electronics Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-09-28

Abstract

The invention provides a safety power supply connector, which belongs to the field of electronic components. The safety power connector includes a connector shell, a cable, a connector socket, a cable, and a socket bracket. The connector socket and socket bracket are arranged in the connector shell, and the socket bracket is fixed on the connector shell. Inside, the connector socket card is embedded on the socket bracket, and the connector socket has three L-pole sockets, N-pole sockets, and PE-pole sockets. The cables include neutral wire, ground wire, live wire, N The pole socket and the PE pole socket are respectively connected with the neutral wire and the ground wire. A switch assembly is also fixed in the connector shell, and the live wire and the L pole socket are connected or disconnected through the switch assembly. A slideway and a push rod are arranged on the socket bracket, and a through hole for extending the outer end of the push rod is opened on the front insertion surface of the connector shell, and the inner end of the push rod abuts against the switch assembly. The safety power connector has the advantages of simple structure, low cost and good safety.

Description

Safety power connector

Technical Field

The invention belongs to the field of electronic components and relates to a safety power connector.

Background

The power connector is a common connecting element of a power supply and electrical equipment, and in the process of connecting the electrical equipment matched with the power connector by the plug bush of the power connector, the phenomenon that the plug bush of the power connector and a bolt on the connector of the electrical equipment are not inserted in place is easily caused because the shape of the plug bush is different from that of the connector of the electrical equipment or a power line is not long enough. On one hand, the human body is easy to touch the exposed bolt, the grounding is not reliable, and the hidden danger of electric shock exists; on the other hand, the contact area of the plug bush and the plug pin is small, the contact resistance is large, the electric appliance is easy to generate heat and burn out, fire accidents are caused, and personal and property safety is harmed.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a safety power connector which is suitable for a power connector of an electronic device powered by alternating current 220V/5OHz, cannot be powered on if the power connector is not plugged in place, and can ensure the safety and stability when the electrical equipment is connected with the power connector.

The purpose of the invention can be realized by the following technical scheme: a safety power connector comprises a connector shell, a cable, a connector plug bush, a cable and a plug bush support, wherein the connector plug bush and the plug bush support are arranged in the connector shell, the plug bush support is fixed in the connector shell, the connector plug bush is embedded on the plug bush support in a clamping manner, the cable is inserted into the connector shell from the tail part of the connector shell, the connector plug bush is provided with three switch assemblies which are respectively an L-pole plug bush, an N-pole plug bush and a PE-pole plug bush, the cable comprises a zero line, a ground wire and a live wire, the N-pole plug bush and the PE-pole plug bush are respectively connected with the zero line and the ground wire, the safety power connector is characterized in that a switch assembly for realizing the conduction or disconnection of the live wire and the L-pole plug bush is arranged between the live wire and the L-pole plug bush, the switch assembly is positioned in the connector shell, the plug bush support is provided with a slide way and a push rod which can horizontally move back and forth along the slide way, a through hole for the outer end of the push rod to extend out is arranged on the front plug face of the connector shell, the inner end of the push rod is abutted against the switch assembly, and the push rod can conduct the switch assembly after the push rod is extruded into the connector shell.

According to the safety power connector, under the condition that the connector plug bush and the plug pin in the joint of the electrical equipment are inserted in place, the push rod moves to enable the switch assembly to be conducted, and the power connector can supply power to the electrical equipment; when the front plug surface of the connector shell is far away from the joint of the electrical equipment, the push rod cannot start the switch assembly to be conducted, so that the power connector and the electrical equipment are powered off. Therefore, the live wire and the L-pole plug bush are connected or disconnected through the switch assembly, and potential safety hazards caused by the fact that the plug pins in the connector plug bush and the electrical equipment connector are not inserted in place are avoided.

Further, the switch assembly include the switch lid, shift knob, the spring sheath, the spring, move the conducting strip, quiet conducting strip, switch base, move the conducting strip, quiet conducting strip is connected with the live wire, L utmost point plug bush respectively, move the conducting strip and quiet conducting strip inlay card respectively at switch base's both ends, it has unsettled elasticity end to move the conducting strip, the switch lid has a slide cartridge, switch lid and switch base lock joint, shift knob is located the switch lid and slides along the slide cartridge of switch lid, shift knob one end nestification is outside the spring sheath, the shift knob other end is held against with the inner of push rod, spring one end supports and leans on bottom in the spring sheath, the spring other end supports and leans on the elasticity that moves the conducting strip and holds.

The plug pin in the electrical equipment joint is inserted into the connector plug bush to apply thrust to the push rod, so that the push rod is pushed towards the direction of the switch button, the switch button is pushed inwards to extrude the spring by the thrust, the spring is linked with the movable conducting strip to bend the conducting strip, and the contact of the movable conducting strip touches the contact of the static conducting strip to complete conduction.

As another scheme, further, the switch assembly include the switch base, move conducting strip, quiet conducting strip is fixed on the switch base, move the conducting strip and be concave type and both ends have the elasticity portion that is wavy, move the conducting strip both ends and fix on the switch base and move the conducting strip middle part and have bellied contact, the inner of push rod and move the middle part of conducting strip and lean on and when the push rod was extruded into the connector shell the contact is extruded by the push rod and is leaned on with quiet conducting strip.

The bolt in the electrical equipment joint inserts the connector plug bush, and the contact terminal surface of joint is preferred to be contacted the push rod, applys thrust to the push rod, and the push rod extrusion is moved the conducting strip and is made it take place to warp and be close to quiet conducting strip, and after the preceding inserted surface of joint and connector shell is laminated completely, it pastes with quiet conducting strip to move the conducting strip, and the switch assembly is in the on-state, and live wire and L utmost point plug bush can be circular telegram.

Further, the connector shell is integrally formed.

As another scheme, further, the connector housing is a detachable structure, and the connector housing includes a connector cover and a connector base, which are fastened together and then connected by screws.

Furthermore, the connector cover, the connector base, the plug bush bracket, the push rod material, the switch cover, the switch button, the spring sheath and the switch base are made of insulating flame-retardant plastic resin.

Furthermore, the connector plug bush, the movable conducting strip and the static conducting strip are made of metal materials with good electric conductivity.

Furthermore, the movable conducting strip and the static conducting strip are provided with convex contacts. The contact on the movable conducting plate is preferentially contacted with the contact on the static conducting plate after the movable conducting plate is bent, so that the movable conducting plate and the static conducting plate are more easily and stably attached, and the conducting state can be stably kept for a long time.

Furthermore, the movable conducting strip is U-shaped. The movable conducting strip has elasticity, and the elastic end can be far away from the static conducting strip by means of the elasticity of the movable conducting strip under the condition of no external force.

Furthermore, the movable guide sheet is provided with a protruding limit block connected with the spring.

Compared with the prior art, the invention has the following advantages:

the safety power connector has the advantages of simple structure, safety, reliability and low material cost, and can know whether the bolt in the connector of the electrical equipment is inserted in place with the connector plug bush through the safety power connector.

Drawings

Fig. 1 is a schematic structural diagram of a safety power connector according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the safety power connector according to the first embodiment in the on state.

Fig. 3 is a schematic structural diagram of the safety power connector of the first embodiment in a disconnected state.

Fig. 4 is a side sectional view of the safety power connector of the first embodiment.

Fig. 5 is a perspective view of the safety power connector of the first embodiment.

Fig. 6 is an exploded view of the safety power connector of the first embodiment.

Fig. 7 is a schematic structural diagram of a switch assembly of the safety power connector according to the first embodiment.

Fig. 8 is a schematic structural diagram of a safety power connector of the second embodiment.

In the figure, 1, a connector insert; 2. a screw; 3. a cable; 4. a switch assembly; 5. a push rod; 6. a plug bush support; 7. a connector cover; 8. a connector base; 9. an L pole plug bush; 10. an N-pole plug bush; 11. inserting a PE pole sleeve; 12. a switch cover; 13. a switch button; 14. a spring sheath; 15. a spring; 16. a movable conducting strip; 17. a static conductive sheet; 18 a switch base; 19. a zero line; 20. a ground wire; 21. a live line; 22. a contact; 23. a limiting block; 24. and a through hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, 4, 5, and 6, the safety power connector provided by the invention includes a connector housing, a cable (3), a connector plug bush (1), and a plug bush bracket (6), wherein the connector plug bush (1) and the plug bush bracket (6) are disposed in the connector housing, the plug bush bracket (6) is fixed in the connector housing, and the connector housing is of a detachable structure. The connector shell comprises a connector cover (7) and a connector base (8), the connector cover (7) and the connector base (8) are connected through screws (2) after being buckled, a connector plug bush (1) is clamped and embedded on a plug bush support (6), a cable (3) is inserted into the connector shell from the tail of the connector shell, the connector plug bush (1) is provided with three L-pole plug bush (9), an N-pole plug bush (10) and a PE-pole plug bush (11), the cable (3) comprises a zero line (19), a ground wire (20) and a live wire (21), the N-pole plug bush (10) and the PE-pole plug bush (11) are connected with the zero line (19) and the ground wire (20) respectively.

Connector shell in still be fixed with switch assembly (4), realize switching on or breaking off through switch assembly (4) between live wire (21) and the L utmost point plug bush (9), be equipped with slide and push rod (5) on plug bush support (6), translation around the slide is followed in push rod (5), open through-hole (24) that the outer end that supplies push rod (5) stretches out on the preceding spigot surface of connector shell, the inner of push rod (5) offsets with switch assembly (4) and leans on, after in push rod (5) is extruded into connector shell, push rod (5) can make switch assembly (4) switch on.

As shown in fig. 2, 3 and 7, the switch assembly (4) comprises a switch cover (12), a switch button (13), a spring sheath (14), a spring (15), a movable conducting strip (16), a static conducting strip (17) and a switch base (18), wherein the movable conducting strip (16) and the static conducting strip (17) are respectively connected with a live wire (21) and an L-pole plug bush (9), the movable conducting strip (16) and the static conducting strip (17) are respectively embedded at two ends of the switch base (18), the movable conducting strip (16) and the static conducting strip (17) are provided with raised contacts (22), the movable conducting strip (16) is provided with a suspended elastic end, the movable conducting strip (16) is U-shaped, the switch cover (12) is provided with a sliding barrel, the switch cover (12) is buckled with the switch base (18), the switch button (13) is positioned in the switch cover (12) and slides along the sliding barrel of the switch cover (12), one end of the switch button (13) is embedded outside the spring sheath (14), the other end of the switch button (13) is propped against the inner end of the push rod (5), one end of the spring (15) is propped against the inner bottom of the spring sheath (14), and the other end of the spring (15) is propped against the elastic end of the movable conducting plate (16).

When the circuit is in the off state, the movable conducting strip (16) does not contact the static conducting strip (17) due to the U-shaped bending state of the movable conducting strip. During the on-state, push rod (5) applys thrust to shift knob (13), shift knob (13) slide along the slide cartridge of switch cover (12), the spring sheath (14) of one end receives the inside extrusion of extrusion linkage spring (15) of shift knob (13) to move conducting strip (16), it is connected with spring (15) to move conducting strip (16) and be equipped with bellied stopper (23), it receives the crooked certain degree of extrusion to move conducting strip (16), it is connected and switches on to move contact (22) on conducting strip (16) and contact (22) on quiet conducting strip (17), effectively avoid the potential safety hazard that arouses under the electrical apparatus bolt half-insertion state, make the power consumption safe and reliable more.

The operating principle of the invention is as follows:

and (3) a disconnection state: when the power connector is not inserted into the joint of the electrical equipment or the connector plug bush (1) and a bolt in the joint of the electrical equipment are not inserted in place, the contact (22) on the static conducting strip (17) and the contact (22) on the movable conducting strip (16) are in a separated state, the switch assembly (4) is in a disconnected state, the L pole lead of the cable (3) of the power connector is disconnected, and the electrical equipment is not powered.

The connection state is as follows: the power connector is inserted into a joint of electrical equipment, when a push rod (5) is contacted with the joint, the push rod (5) is pressed into a connector shell by the joint, the push rod (5) pushes a switch button (13) and enables a spring (15) to be compressed, because the spring (15) is connected with a limiting block (23) on a movable conducting strip (16), the spring (15) pushes the movable conducting strip (16) to move, when the power connector is inserted in place, a contact (22) on the movable conducting strip (16) is switched on and off and is contacted with a contact (22) on a static conducting strip (17), a switch assembly (4) is in a closed state, the power connector is switched on, and the electrical equipment is powered.

Disconnection after connection: the power connector is pulled out from the connector of the electrical equipment, the push rod (5) is separated from the connector, the spring (15) does not bear the pressure, the spring (15) is reset, the movable conducting strip (16) is not extruded and is restored to the original state, the contact (22) on the movable conducting strip (16) is separated from the contact (22) on the static conducting strip (17), and the switch assembly (4) is in a disconnected state.

Example two

The design concept of the present embodiment is substantially the same as that of the first embodiment, and is different from the first embodiment in that the switch assembly (4) is composed of a wave-shaped elastic movable conducting strip (16), so that the structure of the switch assembly (4) is simpler and can generate the same effect, the specific structure is shown in fig. 8, the switch assembly (4) comprises a switch base (18), a movable conducting strip (16) and a static conducting strip (17), the static conducting strip (17) is fixed on the switch base (18), the movable conducting strip (16) is concave and has wave-shaped elastic parts at two ends, two ends of the movable conducting strip (16) are fixed on the switch base (18), a raised contact is arranged in the middle of the movable conducting strip (16), the inner end of the push rod (5) abuts against the middle of the movable conducting strip (16), and when the push rod (5) is extruded into the connector housing, the contact is extruded by the push rod (5) and abuts against the static conducting strip (17), the connector shell is integrally formed. The push rod (5) is extruded by the joint to slide towards the movable conducting strip (16), the middle part of the movable conducting strip (16) is extruded by the push rod (5) to deform, so that the contact is close to and contacts with the static conducting strip (17), and the conduction of the live wire (21) and the L-pole plug bush (9) is realized.

The invention has simple structure, safety and reliability, and effectively avoids potential safety hazard caused by the fact that the plug bush of the connector and the plug pin in the joint of the electrical equipment are not inserted in place.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A safety power connector, comprising a connector shell, a cable (3), a connector socket (1), a cable (3), a socket bracket (6), a connector socket (1), a socket support (6) is arranged in the connector shell, the socket bracket (6) is fixed in the connector shell, the connector socket (1) is clamped on the socket bracket (6), and the cable (3) is inserted from the connector shell The tail is inserted into the connector shell, and the connector socket (1) has three L-pole sockets (9), N-pole sockets (10), and PE-pole sockets (11). The cable (3) includes The neutral wire (19), the ground wire (20), the live wire (21), the N pole socket (10), and the PE pole socket (11) are respectively connected with the neutral wire (19) and the ground wire (20), and are characterized in that , there is a switch assembly (4) between the live wire (21) and the L-pole socket (9) to realize the conduction or disconnection of the two, the switch assembly (4) is located in the connector shell, and the socket bracket (6) ) is provided with a slideway and a push rod (5) that translates back and forth along the slideway, and a through hole (24) for the outer end of the push rod (5) to extend on the front insertion surface of the connector housing is provided to push the The inner end of the rod (5) abuts against the switch assembly (4), and when the push rod (5) is squeezed into the connector housing, the push rod (5) can make the switch assembly (4) conduct.

2. A safety power connector according to claim 1, wherein the switch assembly (4) comprises a switch cover (12), a switch button (13), a spring sheath (14), a spring (15), the dynamic conductive sheet (16), the static conductive sheet (17), the switch base (18), the dynamic conductive sheet (16), the static conductive sheet (17), and the live wire (21) and the L-pole socket (9) respectively ) connection, the movable conductive sheet (16) and the static conductive sheet (17) are respectively clamped at both ends of the switch base (18), the movable conductive sheet (16) has a suspended elastic end, and the switch cover (12) has a sliding cylinder, The switch cover (12) is buckled with the switch base (18), the switch button (13) is located in the switch cover (12) and slides along the sliding cylinder of the switch cover (12), and one end of the switch button (13) is nested in the spring guard. Outside the sleeve (14), the other end of the switch button (13) abuts against the inner end of the push rod (5), one end of the spring (15) abuts against the inner bottom of the spring sheath (14), and the other end of the spring (15) abuts on the elastic end of the movable conductive sheet (16).

3. A safety power connector according to claim 1, characterized in that the switch assembly (4) comprises a switch base (18), a moving conductive sheet (16), and a static conductive sheet (17), The static conductive sheet (17) is fixed on the switch base (18), the movable conductive sheet (16) is concave and has wavy elastic parts at both ends, and both ends of the movable conductive sheet (16) are fixed on the switch base (18) And the middle of the movable conductive sheet (16) has a raised contact, the inner end of the push rod (5) abuts against the middle of the movable conductive sheet (16) and when the push rod (5) is squeezed into the connector housing The contact is pressed by the push rod (5) to abut against the static conductive sheet (17).

4. A safety power connector according to claim 1, 2 or 3, characterized in that the connector housing is integrally formed.

5. A safety power connector according to claim 2, characterized in that the connector housing is a detachable structure, and the connector housing comprises a connector cover (7) and a connector base (8), and the connector cover ( 7) Connect with the connector base (8) through the screw (2).

6. A safety power connector according to claim 5, characterized in that the connector cover (7), the connector base (8), the socket bracket (6), the push rod (5), the switch The materials of the cover (12), the switch button (13), the spring sheath (14), and the switch base (18) are made of insulating flame-retardant plastic resin.

7. A safety power connector according to claim 6, characterized in that the connector sleeve (1), the movable conductive sheet (16), and the static conductive sheet (17) are made of metal materials with good electrical conductivity .

8. A safety power connector according to claim 7, characterized in that the movable conductive sheet (16) and the static conductive sheet (17) have protruding contacts (22).

9 . The safety power connector according to claim 8 , wherein the movable conductive sheet ( 16 ) is U-shaped. 10 .

10 . The safety power connector according to claim 9 , characterized in that the movable conductive sheet ( 16 ) is provided with a raised stop block ( 23 ) to be connected with the spring ( 15 ). 11 .